178 results on '"Data needs"'
Search Results
2. The need for data integration to address the challenges of climate change on the Guyana coast
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Temitope D. Timothy Oyedotun and Helene Burningham
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Climate adaptation ,Climate mitigation ,Data needs ,Data integration ,Web-based platform ,Geography (General) ,G1-922 ,Environmental sciences ,GE1-350 - Abstract
Guyana's capacity to address the impacts of climate change on its coastal environment requires the ability to monitor, quantify and understand coastal change over short-, medium- and long- term. Understanding the drivers of change in coastal and marine environment can be achieved through the accurate measurement and critical analyses of morphologies, flows, processes and responses. This manuscript presents a strategy developed to create a central resource, database and web-based platform to integrate data and information on the drivers and the changes within Guyana coastal and marine environment. The strategy involves four complimentary work packages including data collection, development of a platform for data integration, application of the data for coastal change analyses and consultation with stakeholders. The last aims to assess the role of the integrated data systems to support strategic governance and sustainable decision-making. It is hoped that the output of this strategy would support the country's climate-focused agencies, organisations, decision-makers, and researchers in their tasks and endeavours.
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- 2021
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3. A new era of wolf management demands better data and a more inclusive process.
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Kareiva, Peter, Attwood, Samantha Kim, Bean, Kim, Felix, Desiree, Marvier, Michelle, Miketa, Madison L., and Tate‐Pulliam, Elishebah
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WOLVES , *LIVESTOCK losses , *TOP predators , *PREDATOR management , *LIVESTOCK breeds , *COST effectiveness , *SPECIES - Abstract
Hunting and trapping of gray wolves (Canis lupus) has increased dramatically in the "lower 48" states of the United States. We assess the data used to justify the intense hunting pressure on wolves, and find an absence of accessible biological data. We find there is a clear need for more transparent reporting of livestock losses, wolf kills, and especially the numbers and types of nontarget species captured in traps set for wolves. Also lacking is a full accounting of benefits and costs of hunting wolves, with a noteworthy failure to incorporate the ecosystem functions served by wolves. As apex predators, wolves warrant multi‐objective management as opposed to management focused largely on livestock interests and concerns. [ABSTRACT FROM AUTHOR]
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- 2022
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4. Counting Households Containing Same-Sex Couples: An Inclusive Approach
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Peter Brandon and Oleg Ivashchenko
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Same-sex households ,Inaccurate Estimates ,household surveys ,minority populations ,data needs ,Demography. Population. Vital events ,HB848-3697 - Abstract
Though societal acceptance of same-sex unions has grown, resulting in more inclusive government programs and policies and expanded legal protections, analysts remain uncertain about how to identify and enumerate same-sex households. Presently, the counts available of same-sex households in the United States oftentimes disagree. We show that the origins of these conflicting counts can be traced back to definitional and measurement issues in household surveys. In this study, we demonstrate how counts of same-sex households conflict, mislead, and undermine the goal of accurately representing the population of households with same-sex couples. By providing alternative approaches to counting household with same-sex couples we highlight the challenges in enumerating these households. We draw upon three federal household surveys to demonstrate the inconsistencies in the counts of same-sex households and to illustrate our methods. We argue that our proposed methods lead to more comprehensive and credible counts of households containing same-sex couples.
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- 2022
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5. Future Inspection and Deterioration Prediction Capabilities for Buried Distributed Water Infrastructure.
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Makana, Lewis O., Shepherd, Will J., Tait, Simon, Rogers, Christopher D. F., Metje, Nicole, Boxall, Joby B., and Schellart, Alma N. A.
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ENVIRONMENTAL infrastructure , *WATER supply , *SEWAGE , *FORECASTING - Abstract
This paper examines the role of pipe deterioration prediction approaches for optimizing maintenance, repair, and rehabilitation of buried water supply, wastewater collection, and drainage networks. It is appreciated that there are other ancillary assets within water supply and wastewater collection and drainage networks, but these were not considered in this paper. Currently there are a range of asset condition assessment frameworks, mainly based on asset defect location, identification, and characterization. These are infrequently applied in practice, mainly due to the restricted availability of asset defect inspection data. This paper reviews current deterioration modeling approaches and highlights the crucial need for broader, richer data sets (including both asset and surrounding environment data) to inform the development and application of such approaches. This paper describes what could be considered as an expanded ideal data set for deterioration modeling at a network and individual asset scale and indicates emerging new inspection technologies that should be capable of meeting the enhanced data needs. [ABSTRACT FROM AUTHOR]
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- 2022
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6. A multi-stakeholder participatory pilot study of the data demands of the future Ethiopian dairy sector [version 3; peer review: 3 approved]
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Yacob Aklilu Gebreyes, Brian D. Perry, Getachew Legese, Solomon Hailemariam, Fiona K. Allan, Karen Smyth, Azage Tegegne, and Andrew R. Peters
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Ethiopia ,dairy sector ,stakeholders ,data needs ,development ,eng ,Medicine - Abstract
Background: This paper describes a pilot study undertaken in 2018, to determine the key data needs of each of the different Ethiopian dairy sector stakeholder groups. The study aimed to characterise the emerging trends of dairy product production, processing, retailing and consumption in Ethiopia, and to identify and characterise current and future data needs of different stakeholders. Methods: The study undertook a mapping of the interactions between different stakeholders in the dairy sector, and an interactive evaluation of the institutional data repository and access options. Focus group discussions and interviews were held in three regions of the country prior to a two-day workshop in the capital Addis Ababa. Data needs were characterised by type, availability, format, level of detail, methods of dissemination, uptake and use, and the institutional arrangement, including the different roles of public and private sectors in decision making processes. Results: The study highlighted the main data needs and identified several broader institutional issues constraining the further development of the Ethiopian dairy sector. The stakeholder groups endorsed the reactivation of a national dairy board, independent of government but closely incorporating government, and with the buy-in and membership of private sector enterprises, including producers, processers, service providers and consumers, to provide clearer facilitative leadership on the dairy industry. Conclusions: The study workshop provided a timely discussion between diverse stakeholders, including government, and several potential organisations were suggested to host and manage a national dairy database. Importantly, the reactivation of a national dairy board was strongly endorsed. It was recommended that stakeholder links be established, sector-specific data needs be elevated to higher detail, and a national roll out of herd-specific data recording schemes was called for, to allow for effective evidence-based policies and decision making.
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- 2022
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7. A multi-stakeholder participatory pilot study of the data demands of the future Ethiopian dairy sector [version 2; peer review: 3 approved]
- Author
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Yacob Aklilu Gebreyes, Brian D. Perry, Getachew Legese, Solomon Hailemariam, Fiona K. Allan, Karen Smyth, Azage Tegegne, and Andrew R. Peters
- Subjects
Ethiopia ,dairy sector ,stakeholders ,data needs ,development ,eng ,Medicine - Abstract
Background: This paper describes a pilot study undertaken in 2018, to determine the key data needs of each of the different Ethiopian dairy sector stakeholder groups. The study aimed to characterise the emerging trends of dairy product production, processing, retailing and consumption in Ethiopia, and to identify and characterise current and future data needs of different stakeholders. Methods: The study undertook a mapping of the interactions between different stakeholders in the dairy sector, and an interactive evaluation of the institutional data repository and access options. Focus group discussions and interviews were held in three regions of the country prior to a two-day workshop in the capital Addis Ababa. Data needs were characterised by type, availability, format, level of detail, methods of dissemination, uptake and use, and the institutional arrangement, including the different roles of public and private sectors in decision making processes. Results: The study highlighted the main data needs and identified several broader institutional issues constraining the further development of the Ethiopian dairy sector. The stakeholder groups endorsed the reactivation of a national dairy board, independent of government but closely incorporating government, and with the buy-in and membership of private sector enterprises, including producers, processers, service providers and consumers, to provide clearer facilitative leadership on the dairy industry. Conclusions: The study workshop provided a timely discussion between diverse stakeholders, including government, and several potential organisations were suggested to host and manage a national dairy database. Importantly, the reactivation of a national dairy board was strongly endorsed. It was recommended that stakeholder links be established, sector-specific data needs be elevated to higher detail, and a national roll out of herd-specific data recording schemes was called for, to allow for effective evidence-based policies and decision making.
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- 2022
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8. SemDaServ: A Systematic Approach for Semantic Data Specification of AI-Based Smart Service Systems.
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Preidel, Maurice and Stark, Rainer
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ARTIFICIAL intelligence ,TECHNICAL specifications ,SEMANTICS ,DESIGN research ,INFORMATION modeling ,RESEARCH methodology - Abstract
To develop smart services to successfully operate as a component of smart service systems (SSS), they need qualitatively and quantitatively sufficient data. This is especially true when using statistical methods from the field of artificial intelligence (AI): training data quality directly determines the quality of resulting AI models. However, AI model quality is only known when AI training can take place. Additionally, the creation of not yet available data sources (e.g., sensors) takes time. Therefore, systematic specification is needed alongside SSS development. Today, there is a lack of systematic support for specifying data relevant to smart services. This gap can be closed by realizing the systematic approach SemDaServ presented in this article. The research approach is based on Blessing's Design Research Methodology (literature study, derivation of key factors, success criteria, solution functions, solution development, applicability evaluation). SemDaServ provides a three-step process and five accompanying artifacts. Using domain knowledge for data specification is critical and creates additional challenges. Therefore, the SemDaServ approach systematically captures and semantically formalizes domain knowledge in SysML-based models for information and data. The applicability evaluation in expert interviews and expert workshops has confirmed the suitability of SemDaServ for data specification in the context of SSS development. SemDaServ thus offers a systematic approach to specify the data requirements of smart services early on to aid development to continuous integration and continuous delivery scenarios. [ABSTRACT FROM AUTHOR]
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- 2021
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9. Future Ocean Observations to Connect Climate, Fisheries and Marine Ecosystems
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Jörn O. Schmidt, Steven J. Bograd, Haritz Arrizabalaga, José L. Azevedo, Steven J. Barbeaux, John A. Barth, Tim Boyer, Stephanie Brodie, Juan José Cárdenas, Scott Cross, Jean-Noël Druon, Agneta Fransson, Jason Hartog, Elliott L. Hazen, Alistair Hobday, Michael Jacox, Johannes Karstensen, Sven Kupschus, Jon Lopez, Lauro A. S.-P. Madureira, José E. Martinelli Filho, Patricia Miloslavich, Catarina P. Santos, Kylie Scales, Sabrina Speich, Matthew B. Sullivan, Amber Szoboszlai, Desiree Tommasi, Douglas Wallace, Stephani Zador, and Paulo Antônio Zawislak
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Ecosystem Based Management ,technology ,data needs ,capacity development ,Integration of Ocean Observing Systems ,Science ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
Advances in ocean observing technologies and modeling provide the capacity to revolutionize the management of living marine resources. While traditional fisheries management approaches like single-species stock assessments are still common, a global effort is underway to adopt ecosystem-based fisheries management (EBFM) approaches. These approaches consider changes in the physical environment and interactions between ecosystem elements, including human uses, holistically. For example, integrated ecosystem assessments aim to synthesize a suite of observations (physical, biological, socioeconomic) and modeling platforms [ocean circulation models, ecological models, short-term forecasts, management strategy evaluations (MSEs)] to assess the current status and recent and future trends of ecosystem components. This information provides guidance for better management strategies. A common thread in EBFM approaches is the need for high-quality observations of ocean conditions, at scales that resolve critical physical-biological processes and are timely for management needs. Here we explore options for a future observing system that meets the needs of EBFM by (i) identifying observing needs for different user groups, (ii) reviewing relevant datasets and existing technologies, (iii) showcasing regional case studies, and (iv) recommending observational approaches required to implement EBFM. We recommend linking ocean observing within the context of Global Ocean Observing System (GOOS) and other regional ocean observing efforts with fisheries observations, new forecasting methods, and capacity development, in a comprehensive ocean observing framework.
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- 2019
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10. SemDaServ: A Systematic Approach for Semantic Data Specification of AI-Based Smart Service Systems
- Author
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Maurice Preidel and Rainer Stark
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smart services ,data specification ,domain knowledge ,information needs ,data needs ,knowledge needs ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Biology (General) ,QH301-705.5 ,Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
To develop smart services to successfully operate as a component of smart service systems (SSS), they need qualitatively and quantitatively sufficient data. This is especially true when using statistical methods from the field of artificial intelligence (AI): training data quality directly determines the quality of resulting AI models. However, AI model quality is only known when AI training can take place. Additionally, the creation of not yet available data sources (e.g., sensors) takes time. Therefore, systematic specification is needed alongside SSS development. Today, there is a lack of systematic support for specifying data relevant to smart services. This gap can be closed by realizing the systematic approach SemDaServ presented in this article. The research approach is based on Blessing’s Design Research Methodology (literature study, derivation of key factors, success criteria, solution functions, solution development, applicability evaluation). SemDaServ provides a three-step process and five accompanying artifacts. Using domain knowledge for data specification is critical and creates additional challenges. Therefore, the SemDaServ approach systematically captures and semantically formalizes domain knowledge in SysML-based models for information and data. The applicability evaluation in expert interviews and expert workshops has confirmed the suitability of SemDaServ for data specification in the context of SSS development. SemDaServ thus offers a systematic approach to specify the data requirements of smart services early on to aid development to continuous integration and continuous delivery scenarios.
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- 2021
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11. Mercury transport and fate models in aquatic systems: A review and synthesis.
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Zhu, Senlin, Zhang, Zhonglong, and Žagar, Dušan
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AQUATIC ecology , *CHEMICAL synthesis , *MERCURY poisoning , *BIOLOGICAL mathematical modeling , *BIOGEOCHEMISTRY - Abstract
Mercury contamination in aquatic systems has been an issue to the natural ecosystem and human health. Environmental models have become a valuable decision-making tool and play a significant role in mercury pollution control and management. This paper gives an overview of currently available models for simulating mercury transport and fate in aquatic systems. The mercury transformation mechanisms included in these models were identified, as well as data limitations in the models' application. Future advances in understanding mercury transport, cycling, and biogeochemistry in both water column and sediment will improve the robustness of current modeling applications. Moreover, additional field data are critically needed to better predict the concentrations of multi-phase mercury species in various aquatic systems, including measurements in the water column, benthic sediments, and organisms. Field data are also crucial for model calibration and validation. Without this information it will not be possible to adequately understand the environmental factors controlling mercury fate in aquatic systems. The insufficient quantity of adequate measurements and the unsatisfactory accuracy of mercury models are, in numerous cases, supplemented by mass balances since they diminish the unreliability of models. Mercury science evolves gradually with the advancement of science and technology, which requires that mathematical modeling of mercury transport and transformation should be consistently updated. [ABSTRACT FROM AUTHOR]
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- 2018
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12. National Weather Service Data Needs for Short-Term Forecasts and the Role of Unmanned Aircraft in Filling the Gap: Results from a Nationwide Survey
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Lisa M. PytlikZillig, Adam L. Houston, and Janell C Walther
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Transport engineering ,Atmospheric Science ,Data needs ,Environmental science ,National weather service ,Nationwide survey ,Term (time) - Abstract
Inclusion of unmanned aircraft systems (UAS) into the weather surveillance network has the potential to improve short-term (
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- 2021
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13. A Long Way to Go: Patient Perspectives on Digital Health for Parkinson’s Disease
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Sara Riggare, Jon Stamford, and Maria Hägglund
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Hälso- och sjukvårdsorganisation, hälsopolitik och hälsoekonomi ,Active involvement ,Patients ,Patient Empowerment ,Data needs ,Internet privacy ,Review ,patient perspectives ,03 medical and health sciences ,Cellular and Molecular Neuroscience ,0302 clinical medicine ,Health care ,Humans ,030212 general & internal medicine ,Digital Technology ,business.industry ,Parkinson Disease ,Health Care Service and Management, Health Policy and Services and Health Economy ,Individual level ,Digital health ,patient empowerment ,Neurology (clinical) ,digital technology ,business ,Psychology ,030217 neurology & neurosurgery - Abstract
Digital health promises to improve healthcare, health, and wellness through the use of digital technologies. The purpose of this commentary is to review and discuss the field of digital health for Parkinson’s disease (PD) focusing on the needs, expectations, and wishes of people with PD (PwP). Our analysis shows that PwP want to use digital technologies to actively manage the full complexity of living with PD on an individual level, including the unpredictability and variability of the condition. Current digital health projects focusing on PD, however, does not live up to the expectations of PwP. We conclude that for digital health to reach its full potential, the right of PwP to access their own data needs to be recognised, PwP should routinely receive personalised feedback based on their data, and active involvement of PwP as an equal partner in digital health development needs to be the norm.
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- 2021
14. Type I and II error rates of Bayesian two-sample tests under preliminary assessment of normality in balanced and unbalanced designs and its influence on the reproducibility of medical research
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Riko Kelter
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Statistics and Probability ,Reproducibility ,Applied Mathematics ,Data needs ,media_common.quotation_subject ,Bayesian probability ,Medical research ,law.invention ,Randomized controlled trial ,law ,Modeling and Simulation ,Statistics ,Two sample ,Statistics, Probability and Uncertainty ,Normality ,Student's t-test ,media_common ,Mathematics - Abstract
Student's two-sample t-test is often used in medical research like randomized controlled trials. To control type I errors, normality of the observed data needs to be assessed. In practice, a two-st...
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- 2021
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15. Comparison of free‐living physical activity data obtained from a Fitbit Zip, the Apple iPhone Health app and a modified Bouchard Activity Record
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Rona Macniven, Veronica M Smith, and Rebecca Reynolds
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Community and Home Care ,030505 public health ,Data needs ,Activity tracker ,Public Health, Environmental and Occupational Health ,Physical activity ,Monitoring, Ambulatory ,Reproducibility of Results ,Mobile Applications ,Physical Activity Measurement ,03 medical and health sciences ,Malus ,Accelerometry ,Humans ,Community setting ,0305 other medical science ,Psychology ,Exercise ,human activities ,Demography - Abstract
Issue addressed Physical activity tracking devices have potential to improve public health, but their data needs to be reliable. No study has compared movement data between the Fitbit Zip, Apple iPhone Health app and physical activity records in a community setting over 10 days. Methods University students aged 18+ years wore both a Fitbit Zip and an iPhone at/near their right waist and completed a modified Bouchard Activity Record (BAR) for 10 days in a free-living setting. Comparisons were made between the Fitbit Zip and iPhone for the number of steps and the distance travelled and between the Fitbit Zip and BAR for the minutes of activity in three different intensities. Results Eighteen students provided sufficient data for inclusion. There were strong correlations between steps per day (r = .87) and distance travelled (r = .88) between the Fitbit Zips and iPhones. However, the Fitbit Zip measured significantly more steps per day (mean 8437 vs 7303; P ≤ .001) and greater distances (mean 5.9 vs 4.9; P ≤ .001) than the iPhone. Correlations between the Fitbit Zips and the BARs were moderate for minutes of total (r = .51) and light (r = .40) activity and weak for moderate/fairly active (r = .20) and vigorous/very active (r = .25). Conclusions There were strong correlations between the physical activity data measured by Fitbit Zips and iPhones, but the iPhone Health app significantly underestimated the number of steps per day taken and the distance travelled when compared to the Fitbit Zip. SO WHAT?: Understanding the comparability of accelerometer devices provides useful information for future pragmatic physical activity measurement.
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- 2021
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16. Effects of Climate Change on Grassland Biodiversity and Productivity: The Need for a Diversity of Models.
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van Oijen, Marcel, Bellocchi, Gianni, and Höglind, Mats
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- *
CLIMATE change , *ECOSYSTEMS , *BIODIVERSITY , *ECOSYSTEM dynamics , *BIOTIC communities - Abstract
There is increasing evidence that the impact of climate change on the productivity of grasslands will at least partly depend on their biodiversity. A high level of biodiversity may confer stability to grassland ecosystems against environmental change, but there are also direct effects of biodiversity on the quantity and quality of grassland productivity. To explain the manifold interactions, and to predict future climatic responses, models may be used. However, models designed for studying the interaction between biodiversity and productivity tend to be structurally different from models for studying the effects of climatic impacts. Here we review the literature on the impacts of climate change on biodiversity and productivity of grasslands. We first discuss the availability of data for model development. Then we analyse strengths and weaknesses of three types of model: ecological, process-based and integrated. We discuss the merits of this model diversity and the scope for merging different model types. [ABSTRACT FROM AUTHOR]
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- 2018
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17. The role of experimental work in hydrological sciences – insights from a community survey.
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Blume, Theresa, van Meerveld, Ilja, and Weiler, Markus
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SURVEYS , *HYDROLOGY , *AQUATIC sciences , *INFORMATION sharing , *INFORMATION resources management - Abstract
This opinion paper summarizes the results of an online survey on the role of experimental work in the hydrological sciences. The 20 survey questions covered various topics, such as advancements, needs, potentials and challenges in the hydrological sciences, and also touched on the issue of data sharing and data publication. A total of 336 hydrologists with both modelling and experimental backgrounds participated. [ABSTRACT FROM AUTHOR]
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- 2017
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18. <scp>COVID</scp>‐19 Policy Modeling in Sub‐Saharan Africa
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Megan Jehn, Valerie Mueller, Glenn Sheriff, and Corinna Keeler
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Economics and Econometrics ,2019-20 coronavirus outbreak ,Sub saharan ,Coronavirus disease 2019 (COVID-19) ,Poverty ,Data needs ,05 social sciences ,Context (language use) ,Development ,0502 economics and business ,Development economics ,Pandemic ,Economics ,050202 agricultural economics & policy ,050207 economics ,Health policy - Abstract
After an initial delay, Sub-Saharan Africa (SSA) is being hit by the pandemic Demand for exports is falling and caseloads are rising Governments have approached this crisis with a range of policy options Optimal policy balances reduced infection rates with lost economic output This paper discusses how an economic-epidemiological model used to analyze policy in high-income countries could be adapted to a context where poverty considerations are paramount Differences in country characteristics across the continent affect benefits and costs of alternative policy designs We conclude by highlighting data needs and model calibration challenges for COVID-19 policy research in SSA
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- 2020
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19. A preliminary study to identify data needs for improving fit of hand and wrist orthosis using verbal protocol analysis
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Xinyang Tan, Jiangang Cao, Saeema Ahmed-Kristensen, and Wei Chen
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Adult ,Orthotic Devices ,Wrist orthosis ,Computer science ,medicine.medical_treatment ,Data needs ,Psychological intervention ,Physical Therapy, Sports Therapy and Rehabilitation ,Human Factors and Ergonomics ,Protocol analysis ,03 medical and health sciences ,0302 clinical medicine ,Occupational Therapists ,Human–computer interaction ,medicine ,Humans ,0501 psychology and cognitive sciences ,050107 human factors ,Rehabilitation ,Communication ,05 social sciences ,Hand Injuries ,Equipment Design ,030229 sport sciences ,Middle Aged ,Delayed delivery ,Current practice ,Task analysis ,Clinical Competence ,Needs Assessment - Abstract
The delayed delivery, poor fitting and discomfort of customised orthoses are reported in rehabilitation clinics as resulting in more invasive interventions. The current practice of orthosis customisation relies heavily upon the experience and fabrication processes of therapists. In order to better understand the current practice, and thus identify data that is required for better comfort moving towards a data-driven customisation, this article describes a study generating working models of therapists. Customisations of hand and wrist orthoses for 18 patients were observed. Verbal protocol analysis was employed to extend the current understanding of fabrication processes. Working models of four therapists were established with quantitative evaluation on major phases, interactive activities and iterations of performing tasks during fabrication, revealing different working models between in- and out-patient departments (e.g. fabrication for in-patients was more complex and focussed on ergonomic fitting whereas fabrication for out-patients paid attention to durability) which were qualitatively explained. Practitioner summary: Fit and comfort are imperative for orthosis design and fabrication, however the current practice of customisation of an orthosis relies upon the experience of individual hand therapist. The article presents working models of hand therapists, and relevant data that would enable customisation of orthosis for better fit. Abbreviations: VPA: verbal protocol analysis; hw LTT: low temperature thermoplastic; ANOVA: analysis of variance.
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- 2020
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20. Surgical Implantation of Acoustic Tags in American Shad to Resolve Riverine and Marine Restoration Challenges
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Benjamin I. Gahagan and Michael M. Bailey
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0106 biological sciences ,Alosa ,Watershed ,food.ingredient ,biology ,010604 marine biology & hydrobiology ,Data needs ,04 agricultural and veterinary sciences ,Aquatic Science ,biology.organism_classification ,01 natural sciences ,Spawn (biology) ,Fishery ,food ,Geography ,Statistical analyses ,040102 fisheries ,0401 agriculture, forestry, and fisheries ,American shad ,Ecology, Evolution, Behavior and Systematics ,Overwintering - Abstract
A variety of data needs challenge the successful restoration and management of alosine populations, including information on the migration, mortality, behavior, demographic rates, and distribution of fish, both in riverine and marine environments. Radiotelemetry with gastric‐implanted transmitters has typically been used to answer some of these questions; however, observing alosines over extended periods and in the marine environment has remained beyond the limitations of this technology and implantation technique. To address these issues, we conducted an acoustic telemetry study on American Shad Alosa sapidissima by using surgical implantation methods. We tagged fish during 2015 (n = 46) and 2016 (n = 52) in the Charles River, Massachusetts, an urbanized watershed where American Shad were believed to be extirpated prior to restoration efforts beginning in 2006. Surgical implantation produced rates of in‐river mortality (40% overall) and posttagging fallback (39% overall) that were comparable to those from traditionally used gastric implantation methods. Data from American Shad that were retained for statistical analyses (n = 59) demonstrated that Watertown Dam (at river kilometer 14.3) impeded upstream migration and that New Boston Dam and Locks (at the mouth of the river) delayed postspawn emigration from the river. In total, 49 American Shad were detected outside of the Charles River. The distribution and low number of total detections, despite a large number of nearshore arrays, suggest that American Shad occupy waters farther offshore during their marine phase. American Shad were detected as overwintering on the Scotian Shelf (n = 5) and the Mid‐Atlantic Bight (n = 1). In 2017, 10 of the individuals that were tagged in 2016 returned to spawn, providing the first reported data on total migration timing and migratory behavior free of handling effects. Surgical implantation of acoustic telemetry tags is an effective method that can provide necessary and previously unattainable data on a species of conservation need.
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- 2020
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21. Impact of lossy compression of X-ray projections onto reconstructed tomographic slices
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Jakob Vogel, Marco Stampanoni, and Federica Marone
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Diffraction ,Nuclear and High Energy Physics ,Radiation ,Computer science ,Data needs ,Detector ,X-ray ,Lossy compression ,Data rate ,Frame rate ,01 natural sciences ,Research Papers ,eye diseases ,030218 nuclear medicine & medical imaging ,010309 optics ,03 medical and health sciences ,0302 clinical medicine ,lossy compression ,0103 physical sciences ,Entropy (information theory) ,X-ray tomographic imaging ,sense organs ,Instrumentation ,Algorithm - Abstract
Synchrotron beamlines acquiring data for tomographic imaging routinely produce a few TB of data per day, and significantly more in the case of time-resolved studies. This work investigates the impact of lossy compression of raw acquisitions onto tomographic reconstructions, aiming for production use. It is shown that a compression factor of at least three to four times does generally not affect the reconstruction quality and that higher factors (six to eight times) can be achieved for tomographic volumes with a high signal-to-noise ratio as it is the case for phase-retrieved datasets., Modern detectors used at synchrotron tomographic microscopy beamlines typically have sensors with more than 4–5 mega-pixels and are capable of acquiring 100–1000 frames per second at full frame. As a consequence, a data rate of a few TB per day can easily be exceeded, reaching peaks of a few tens of TB per day for time-resolved tomographic experiments. This data needs to be post-processed, analysed, stored and possibly transferred, imposing a significant burden onto the IT infrastructure. Compression of tomographic data, as routinely done for diffraction experiments, is therefore highly desirable. This study considers a set of representative datasets and investigates the effect of lossy compression of the original X-ray projections onto the final tomographic reconstructions. It demonstrates that a compression factor of at least three to four times does not generally impact the reconstruction quality. Potentially, compression with this factor could therefore be used in a transparent way to the user community, for instance, prior to data archiving. Higher factors (six to eight times) can be achieved for tomographic volumes with a high signal-to-noise ratio as it is the case for phase-retrieved datasets. Although a relationship between the dataset signal-to-noise ratio and a safe compression factor exists, this is not simple and, even considering additional dataset characteristics such as image entropy and high-frequency content variation, the automatic optimization of the compression factor for each single dataset, beyond the conservative factor of three to four, is not straightforward.
- Published
- 2020
22. A dataset describing data discovery and reuse practices in research
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Gregory, Kathleen and Data Archiving and Networked Services (DANS)
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Publishing ,Statistics and Probability ,Data Descriptor ,Computer science ,Data needs ,05 social sciences ,MEDLINE ,Data discovery ,Secondary research ,Library and Information Sciences ,Reuse ,050905 science studies ,Data science ,Social sciences ,Research data ,Computer Science Applications ,Education ,Variety (cybernetics) ,lcsh:Q ,0509 other social sciences ,Statistics, Probability and Uncertainty ,050904 information & library sciences ,lcsh:Science ,Discipline ,Information Systems - Abstract
This paper presents a dataset produced from the largest known survey examining how researchers and support professionals discover, make sense of and reuse secondary research data. 1677 respondents in 105 countries representing a variety of disciplinary domains, professional roles and stages in their academic careers completed the survey. The results represent the data needs, sources and strategies used to locate data, and the criteria employed in data evaluation of these respondents. The data detailed in this paper have the potential to be reused to inform the development of data discovery systems, data repositories, training activities and policies for a variety of general and specific user communities., Measurement(s) data discovery behaviours • data reuse behaviours • data management Technology Type(s) Survey • Self-Report Machine-accessible metadata file describing the reported data: 10.6084/m9.figshare.12445034
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- 2020
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23. How accurate are policy document mentions? A first look at the role of altmetrics database
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Zhenyi Yang, Houqiang Yu, Tingting Xiao, and Xueting Cao
- Subjects
Database ,Computer science ,Data needs ,05 social sciences ,General Social Sciences ,Data provider ,Societal impact of nanotechnology ,Library and Information Sciences ,050905 science studies ,computer.software_genre ,Computer Science Applications ,High complexity ,Data quality ,Transcription error ,Altmetrics ,0509 other social sciences ,050904 information & library sciences ,computer ,Coding (social sciences) - Abstract
Policy document mention is considered to indicate the significance and societal impact of scientific product. However, the accuracy of policy document altmetrics data needs to be evaluated to fully understand its strength and limitation. An in-depth coding analysis was conducted on sample policy documents records of Altmetric.com database. The sample consists of 2079 records from all 79 distinct policy document source platforms tracked by the database. Errors about mentioned publications in the policy documents (type A error) are found in 8% of the records, while errors about either the recorded policy documents or the mentioned publications in the altmetrics database (type B error) are found in 70% of the records. In type B error, policy document link error (5% of the records) could be attributable to the policy document website, transcription error (52% of the records) could be attributable to the third-party bibliographic data provider. These two categories of error are relatively minor and may have limited influence on altmetrics research and practices. False positive policy document mention (13% of the records), however, could be attributable to the Altmetric database and may diminish the validity of research based on the policy document altmetrics data. The underlying reasons remain to be further investigated. Considering the high complexity of extracting mentions of publications from various sources and formats of policy documents as well as its short history, Altmetric database has achieved excellent performance.
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- 2020
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24. Data Needs for Hyperspectral Detection of Algal Diversity Across the Globe
- Author
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Kevin Ruddick, Vittorio E. Brando, Astrid Bracher, Hubert Loisel, and Heidi M. Dierssen
- Subjects
0106 biological sciences ,010504 meteorology & atmospheric sciences ,business.industry ,010604 marine biology & hydrobiology ,Data needs ,media_common.quotation_subject ,Environmental resource management ,detection ,Hyperspectral imaging ,Globe ,algal ,Oceanography ,01 natural sciences ,hyperspectral ,Geography ,medicine.anatomical_structure ,13. Climate action ,medicine ,14. Life underwater ,business ,0105 earth and related environmental sciences ,Diversity (politics) ,media_common - Abstract
A group of 38 experts specializing in hyperspectral remote-sensing methods for aquatic ecosystems attended an interactive Euromarine Foresight Workshop at the Flanders Marine Institute (VLIZ) in Ostend, Belgium, June 4–6, 2019. The objective of this workshop was to develop recommendations for comprehensive, efficient, and effective laboratory and field programs to supply data for development of algorithms and validation of hyperspectral satellite imagery for micro-, macro- and endosymbiotic algal characterization across the globe. The international group of researchers from Europe, Asia, Australia, and North and South America (see online Supplementary Materials) tackled how to develop global databases that merge hyperspectral optics and phytoplankton group composition to support the next generation of hyperspectral satellites for assessing biodiversity in the ocean and in food webs and for detecting water quality issues such as harmful algal blooms. Through stimulating discussions in breakout groups, the team formulated a host of diverse programmatic recommendations on topics such as how to better integrate optics into phytoplankton monitoring programs; approaches to validating phytoplankton composition with ocean color measurements and satellite imagery; new database specifications that match optical data with phytoplankton composition data; requirements for new instrumentation that can be implemented on floats, moorings, drones, and other platforms; and the development of international task forces. Because in situ observations of phytoplankton biogeography and abundance are scarce, and many vast oceanic regions are too remote to be routinely monitored, satellite observations are required to fully comprehend the diversity of micro-, macro-, and endosymbiotic algae and any variability due to climate change. Ocean color remote sensing that provides regular synoptic monitoring of aquatic ecosystems is an excellent tool for assessing biodiversity and abundance of phytoplankton and algae in aquatic ecosystems. However, neither the spatial, temporal, nor spectral resolution of the current ocean color missions are sufficient to characterize phytoplankton community composition adequately. The near-daily overpasses from ocean color satellites are useful for detecting the presence of blooms, but the spatial resolution is often too coarse to assess the patchy distribution of blooms, and the multiband spectral resolution is generally insufficient to identify different types of phytoplankton from each other, even if progress has undeniably been achieved during the last two decades (e.g., IOCGG, 2014). Moreover, the methods developed for multichannel sensor use are often highly tuned to a region but are inaccurate when applied broadly. New orbital imaging spectrometers are being developed that cover the full visible and near-infrared spectrum with a large number of narrow bands dubbed “hyperspectral” (e.g., TROPOMI, PRISMA, EnMAP, PACE, CHIME, SBG). Hyper-spectral methods have been explored for many years to assess phytoplankton groups and map seafloor habitats. However, the utility of hyperspectral imaging still needs to be demonstrated across diverse aquatic regimes. Aquatic applications of hyperspectral imagery have been limited by both the technology and the ability to validate products. Some of the past hyperspectral space-based sensors have suffered from calibration artifacts, low sensitivity in aquatic ecosystems (e.g., CHRIS, HICO), and very low spatial resolution (e.g., SCIAMACHY), but the next generation of sensors are planned to have high signal-to-noise ratio and improved performance over aquatic targets. Providing data to develop and validate hyperspectral approaches to characterize phytoplankton groups across the globe poses new challenges. Several recent studies have documented gaps that need to be filled in order to assess algal diversity across the globe (IOCCG, 2014; Mouw et al., 2015; Bracher et al., 2017), which promoted/inspired the formation of this workshop.
- Published
- 2020
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25. Correlations between macroseismic intensity estimations and ground motion measures of seismic events
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Leonardo Chiauzzi, Vincenzo Manfredi, Angelo Masi, and Giuseppe Nicodemo
- Subjects
Ground motion ,021110 strategic, defence & security studies ,Peak ground acceleration ,Data needs ,0211 other engineering and technologies ,02 engineering and technology ,Building and Construction ,Geotechnical Engineering and Engineering Geology ,Technical literature ,Intensity (physics) ,Geophysics ,European Macroseismic Scale ,Statistical analyses ,Seismology ,Geology ,Civil and Structural Engineering - Abstract
Macroseismic intensity data are an important source to learn from historical earthquakes. Nevertheless, this data needs to be converted into more suitable intensity measures to be used in risk analyses, as well as in design practice. To this purpose, in this paper, correlations between macroseismic scales and ground motion parameters have been derived. Peak Ground Acceleration (PGA), Peak Ground Velocity (PGV) and Housner Intensity (IH) as instrumental measures, and European Macroseismic Scale (EMS-98) and Mercalli-Cancani-Sieberg (MCS) as macroseismic measures, have been considered. 179 ground-motion records belonging to 32 earthquake events occurred in Italy in the last 40 years have been selected, provided that for each record, macroseismic intensity in terms of either EMS-98 or MCS or both were also available. Statistical analyses have been carried out to derive both direct (i.e. macroseismic vs instrumental intensity) and inverse (instrumental vs macroseismic intensity) relationships. Results obtained from the proposed relationships have been analyzed and compared with some of the most prominent results available in the technical literature.
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- 2020
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26. The last decade in orthodontics: A scoping review of the hits, misses and the near misses!
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Donald J. Ferguson, Pratik Premjani, M. Ali Darendeliler, Nikhilesh R. Vaid, and Narayan H. Gandedkar
- Subjects
Orthodontics ,Data needs ,030206 dentistry ,Practice management ,Outcome assessment ,Near miss ,03 medical and health sciences ,Patient confidentiality ,0302 clinical medicine ,Social media ,Road map ,Psychology ,030217 neurology & neurosurgery ,Patient education - Abstract
The past decade (2009-19) has seen orthodontics incorporate many new infusions into its fold. This scoping review analyzes published orthodontic literaure in five different domains:(1) Recent advancements in orthodontic 3D applications including 3D printing, diagnosis and management. (2) Recent advancements in orthodontic biomaterials, nanotechnology, biomimetics, battery-driven devices. (3) Recent advancements in orthodontic patient education, orthodontic training, and orthodontics practice management. (4) Recent advancements in orthodontic E-health protocols, tele-orthodontics, teleconsultations etc. and (5) Recent advancements in orthodontic marketing and social media influences. A total of 1245 records were searched,of which 65 potentially relevant articles were retrieved in full. 42 studies met the selection criteria following screening and were included in the scoping review. The review found studies pertaining to morphological features or surface characteristics with respect to 3D applications (3D printing, diagnosis and management)as the most represented outcome assessment (49%).Orthodontic Marketing & Influence of Social Media (27%) and Biomaterials,Nano-Technology,Biomimetics and battery Driven devices have also been considerably reported (20%) in the past decade. More scientific data needs to be gathered in the field of Patient education, E-health, tele-orthodontics, and protection of patient confidentiality. The authors present COS (Core Outcome Sets)that could be a road map for evaluating currently employed developments as well as testing new ones in future.
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- 2019
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27. Literature review on modeling and simulation of energy infrastructures from a resilience perspective
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Jianhui Wang, Landolf Rhode-Barbarigos, Yanling Lin, Jing Wang, Wangda Zuo, and Xing Lu
- Subjects
021110 strategic, defence & security studies ,021103 operations research ,Computer science ,Data needs ,media_common.quotation_subject ,Energy (esotericism) ,Perspective (graphical) ,0211 other engineering and technologies ,02 engineering and technology ,Industrial and Manufacturing Engineering ,Energy infrastructure ,Modeling and simulation ,Interdependence ,Risk analysis (engineering) ,Scale (social sciences) ,Safety, Risk, Reliability and Quality ,Resilience (network) ,media_common - Abstract
Recent years have witnessed an increasing frequency of disasters, both natural and human-induced. This applies pressure to critical infrastructures (CIs). Among all the CI sectors, the energy infrastructure plays a critical role, as almost all other CIs depend on it. In this paper, 30 energy infrastructure models dedicated for the modeling and simulation of power or natural gas networks are collected and reviewed using the emerging concept of resilience. Based on the review, typical modeling approaches for energy infrastructure resilience problems are summarized and compared. The authors, then, propose five indicators for evaluating a resilience model; namely, catering to different stakeholders, intervening in development phases, dedicating to certain stressor and failure, taking into account different interdependencies, and involving socio-economic characteristics. As a supplement, other modeling features such as data needs and time scale are further discussed. Finally, the paper offers observations of existing energy infrastructure models as well as future trends for energy infrastructure modeling.
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- 2019
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28. Information Needs Assessment for Coastal and Marine Management and Policy: Ecosystem Services Under Changing Climatic, Land Use, and Demographic Conditions.
- Author
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Goldsmith, Kaitlin, Granek, Elise, and Lubitow, Amy
- Subjects
LAND management ,LAND use ,CLIMATE change ,AGRICULTURE ,AGRICULTURAL geography - Abstract
Changing climatic, demographic, and land use conditions are projected to alter the provisioning of ecosystem services in estuarine, coastal, and nearshore marine ecosystems, necessitating mitigation and adaptation policies and management. The current paradigm of research efforts occurring in parallel to, rather than in collaboration with, decision makers will be insufficient for the rapid responses required to adapt to and mitigate for projected changing conditions. Here, we suggest a different paradigm: one where research begins by engaging decision makers in the identification of priority data needs (biophysical, economic, and social). This paper uses synthesized interview data to provide insight into the varied demands for scientific research as described by decision makers working on coastal issues in Oregon, USA. The findings highlight the need to recognize (1) the differing framing of ecosystem services by decision makers versus scientists; and (2) the differing data priorities relevant to inland versus coastal decision makers. The findings further serve to highlight the need for decision makers, scientists, and funders to engage in increased communication. This research is an important first step in advancing efforts toward evidence-based decision making in Oregon and provides a template for further research across the US. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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29. Developing New Systems of Data to Advance a Culture of Health.
- Author
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Plough, Alonzo L.
- Subjects
PUBLIC health & society ,POPULATION health ,MEDICAL care - Abstract
Introduction: The system dynamics that are driving changes in health and health care in the United States are not well captured by standard data collection activities. We need systems of data that can inform policy and program development and reflect the increasing recognition that all aspects of people's lives-their work, families, and communities and not just formal health and health care services-support active and healthy living. Culture of Health Action Areas:Within the Culture of Health Framework, there are four action areas that are farther upstream in the sequence of change and point to additional need for more nuanced approach to data collection: building a shared value of health; fostering collaboration to improve well-being; creating health more equitable community environments; and transforming health and health care systems. These action areas define the Culture of Health framework that we hope will spur research and strategies across sectors to improve health. Conclusion: The action framework for advancing a culture of health will guide the Robert Wood Johnson Foundation's grant-making and strategic collaborations. The hope is that it will also catalyze changes in how researchers and organizations collect health related data at all levels. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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30. Identifying useful climate change information needs of Great Lakes fishery managers.
- Author
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Mulvaney, Kate K., Foley, Carolyn J., Hööka, Tomas O., McNie, Elizabeth C., and Prokopy, Linda S.
- Abstract
There is mounting evidence that climatic changes have altered physical conditions in the Laurentian Great Lakes and will continue to do so. In the face of this challenge, fishery managers require useful information to support decision making. We utilized a mixed methods approach, including an email survey and focus groups with fishery managers, to identify information gaps in understanding the impacts of climate change on fishery management The fishery managers perceived climate change to be a threat to the fishery and identified specific climate change information that would be most useful for their work. This includes information on how climate change will affect fish populations, trophic interactions, and habitat conditions, as well as how climate change will interact synergistically with other management concerns. Our findings indicate that future research efforts should focus on species of commercial or recreational interest and species for which restoration plans already exist. Although modeling efforts that incorporate both biotic and abiotic factors may be useful to fishery management stakeholders, to enhance utility for managers, researchers should work with the information users to understand the pertinence of various temporal and spatial scales when designing studies and presenting information. Many fishery managers believe that valuable information related to climate change, particularly long-term datasets, already exists but has not been made easily accessible or brought to their attention. Finally, in order to increase the awareness and use of their climate research, researchers should present at relevant meetings in addition to just emailing reports and publishing scientific manuscripts. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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31. Internet of Texas Water Data Update: Use Cases for Flood, Drought, and Surface Water–Groundwater Interactions
- Author
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Rudolph Rosen, Robert E. Mace, Sam Marie Hermitte, and Richard Wade
- Subjects
internet of water ,Data needs ,Water development ,Ocean Engineering ,Management, Monitoring, Policy and Law ,Aquatic Science ,Use case ,TD201-500 ,Engineering (miscellaneous) ,Ecology, Evolution, Behavior and Systematics ,ComputingMethodologies_COMPUTERGRAPHICS ,Water Science and Technology ,Water supply for domestic and industrial purposes ,ComputingMilieux_THECOMPUTINGPROFESSION ,Flood myth ,Texas water ,business.industry ,water data management ,public water data ,water management use case ,Agricultural and Biological Sciences (miscellaneous) ,Work (electrical) ,Environmental science ,The Internet ,business ,Water resource management ,Surface water ,Groundwater - Abstract
Experts representative of Texas’ water sectors identified critical water data needs and described the design of a comprehensive open access data system that facilitates use of public water data in Texas at the April 2018 Connecting Texas Water Data Workshop as reported in the Texas Water Journal. Participants described potential use cases to initiate work on the most critical data hubs for connecting Texas water data. This update describes progress on a flood dashboard by the Texas Water Development Board and development of use cases by stakeholders with expertise in water data for drought and surface water – groundwater interactions., Texas Water Journal, Vol. 11 No. 1 (2020)
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- 2020
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32. Dynamic Heat Flux Measurements from Finishing Pigs
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Joseph Darrington, Robert C. Thaler, and Erin L. Cortus
- Subjects
Materials science ,Animal science ,Steady state ,Heat flux ,Data needs ,General Engineering ,Heat losses ,Heat transfer model ,Sensible heat ,Tissue resistance ,Calorimeter - Abstract
Animal heat production and transfer data needs updating as genetics evolve, and newer technology provides alternative settings for collecting heat flux measurements. The project objective was to use heat flux sensors to measure the postural (resting, standing) effects on heat flux from finishing pigs, and compare estimated tissue resistance and sensible heat production based on these measurements to literature values. We measured heat flux from 12 individually housed active barrows with average (±SD) weight ranges of 95.6±15.5 kg and 111±13.9 kg, for Trials 1 and 2, respectively. We affixed heat flux sensors to the shaved areas on the right and left sides and rumps of the pigs to collect heat flux measurements every minute over a 6-h period during each trial. An overhead video camera system recorded pig behavior and positioning within each pen throughout the trials. Heat flux measurements showed rapid heat loss between a pig and floor when the pig lies on a cooled surface, but the heat flux starts to decrease almost immediately to steady state levels. When standing, the average heat flux from the rear of the pigs (124±8 W m-2) was greater than the heat flux from the sides of the animal (117±8 W m-2) (p2=0.2735, n=24) with an intercept of 143 W m-2, suggests the heat flux decreases 0.25 W m-2 for each 1 kg increase in pig mass. Tissue resistance estimates from these heat flux measurements are approximately 60% of tissue resistance model estimates from the 1990’s. The heat flux data translate to sensible heat production estimates of 1.8 W kg-1, within the range of calorimeter-based estimates from recent literature. Keywords: Heat transfer model, Pigs, Pig housing, Tissue resistance.
- Published
- 2019
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33. Stochastic hydrogeology's biggest hurdles analyzed and its big blind spot
- Author
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Falk Heße, Ching-Fu Chang, Karina Cucchi, Yoram Rubin, Heather Savoy, Jiancong Chen, and Bradley Harken
- Subjects
lcsh:GE1-350 ,Hydrogeology ,Higher education ,business.industry ,Interface (Java) ,Computer science ,lcsh:T ,Data needs ,0208 environmental biotechnology ,lcsh:Geography. Anthropology. Recreation ,02 engineering and technology ,lcsh:Technology ,lcsh:TD1-1066 ,020801 environmental engineering ,Financial incentives ,Risk analysis (engineering) ,lcsh:G ,Workforce ,General Earth and Planetary Sciences ,lcsh:Environmental technology. Sanitary engineering ,business ,lcsh:Environmental sciences ,General Environmental Science - Abstract
This paper considers questions related to the adoption of stochastic methods in hydrogeology. It looks at factors affecting the adoption of stochastic methods including environmental regulations, financial incentives, higher education, and the collective feedback loop involving these factors. We begin by evaluating two previous paper series appearing in the stochastic hydrogeology literature, one in 2004 and one in 2016, and identifying the current thinking on the topic, including the perceived data needs of stochastic methods, the attitude in regulations and the court system regarding stochastic methods, education of the workforce and the availability of software tools needed for implementing stochastic methods in practice. Comparing the state of adoption in hydrogeology to petroleum reservoir engineering allowed us to identify quantitative metrics on which to base our analysis. For impediments to the adoption of stochastic hydrology, we identified external factors as well as self-inflicted wounds. What emerges is a picture much broader than current views. Financial incentives and regulations play a major role in stalling adoption. Stochastic Hydrology's blind spot is in confusing between risk and uncertainty and ignoring uncertainty. We show that stochastic hydrogeology comfortably focused on risk while ignoring uncertainty, to its own detriment and to the detriment of its potential clients. The imbalance between the treatment on risk on one hand and uncertainty on the other is shown to be common to multiple disciplines in hydrology that interface with risk and uncertainty.
- Published
- 2018
34. Analysis of requests for information and data from a national soil data centre in France.
- Author
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de Forges, A. C. Richer and Arrouays, D.
- Subjects
DATABASE management ,SOIL profiles ,LAND management ,SOIL management - Abstract
We studied a database that recorded all requests to the French National Soil Data Centre between April 2008 and November 2009 when a total of 440 requests were made. Our hypothesis is that an analysis of such requests can provide an insight into awareness of soil issues and data needs. These requests covered a wide range of topics. The most important threats were contamination, erosion and soil organic carbon decline. Soil acidification appeared to be no longer a priority concern. We found a lack of awareness of topics such as soil sealing and soil compaction. Gaps in data coverage are stressed and we highlight some data that were inadequate for some users’ needs. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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35. Rural-urban migration in developing countries: Lessons from the literature
- Author
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Harris Selod and Forhad Shilpi
- Subjects
Economics and Econometrics ,Internal migration ,media_common.quotation_subject ,Data needs ,05 social sciences ,Developing country ,Structural transformation ,Urban Studies ,Urbanization ,0502 economics and business ,Development economics ,Business ,050207 economics ,Welfare ,050205 econometrics ,media_common - Abstract
This paper reviews the recent literature on rural-urban migration in developing countries, focusing on three key questions: What motivates or forces people to migrate? What costs do migrants face? What are the impacts of migration on migrants and the economy? The literature paints a complex picture whereby rural-urban migration is driven by many factors and the returns to migration as well as the costs are very high. The evidence supports the notion that migration barriers hinder labor market adjustment and are likely to be welfare reducing. The review concludes by identifying gaps in current research and data needs.
- Published
- 2021
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36. A systematic approach to identify, characterize, and prioritize the data needs for quantitative sustainable disaster debris management.
- Author
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Jalloul, Hiba, Choi, Juyeong, Yesiller, Nazli, Manheim, Derek, and Derrible, Sybil
- Subjects
EMERGENCY management ,SOCIAL network analysis ,DISASTER relief ,WASTE recycling ,HAZARDS ,REQUIREMENTS engineering - Abstract
• Data needs for sustainable disaster debris management are identified. • Time-sensitive data are characterized using a four-phase planning framework. • Social network analysis is used to prioritize the collection of the identified data. • Effective reconnaissance methods are needed to capture important post-disaster data. Recycling and reuse are major components of disaster debris management with significant environmental, economic, and social benefits. To develop quantitative and sustainable debris management practices, a broad range of data is required. Existing studies have not comprehensively delineated the data and analysis requirements for quantitative assessment of sustainable debris management, which limits proper disaster data collection and restricts the development of approaches to efficiently quantify, characterize, and allocate disaster waste among existing and emerging debris management pathways. This study aimed to fill this gap by reviewing previous investigations to identify the data required to quantitatively assess both critical and practical aspects of sustainable disaster debris management. The literature review indicated that the most significant data for post-disaster debris management relate to i) the amount and composition of debris; ii) availability of temporary debris management sites; iii) hazards and environmental concerns; iv) economics; v) social considerations; and vi) funding policies. Considering the time-sensitive nature of different disaster debris data types, a four-phase planning framework is proposed for timely collection of data: pre-disaster, post-disaster response, short-term recovery, and long-term recovery. With significant identified data needs and finite amount of resources for data collection, particularly during post-disaster phases, social network analysis (SNA) is used to quantitively evaluate the relative importance of the data needs. Overall, it is recommended to develop comprehensive debris management inventories that aggregate diverse pre-disaster datasets, along with integrated specialized reconnaissance investigations to collect post-disaster data, most of which are identified as high priority. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
37. Characterizing Golden Eagle Risk to Lead and Anticoagulant Rodenticide Exposure: A Review
- Author
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Garth Herring, Collin A. Eagles-Smith, and Jeremy A. Buck
- Subjects
0106 biological sciences ,Conservation planning ,Eagle ,biology ,Data needs ,010501 environmental sciences ,medicine.disease ,01 natural sciences ,Lead poisoning ,010601 ecology ,Toxicology ,Fishery ,Lead (geology) ,Geography ,Habitat ,biology.animal ,medicine ,Animal Science and Zoology ,Rodenticide ,0105 earth and related environmental sciences - Abstract
Contaminant exposure is among the many threats to Golden Eagle (Aquila chrysaetos) populations throughout North America, particularly lead poisoning and anticoagulant rodenticides (AR). These threats may act in concert with others (e.g., lead poisoning and trauma associated with striking objects) to exacerbate risk. Golden Eagles are skilled hunters but also exploit scavenging opportunities, making them particularly susceptible to contaminant exposure from ingesting tissues of poisoned or shot animals. Lead poisoning has long been recognized as an important source of mortality for Golden Eagles throughout North America. More recently, ARs have been associated with both sublethal and lethal effects in raptor species worldwide. In this review, we examine the current state of knowledge for lead and AR exposure in Golden Eagles, drawing from the broader raptor contaminant ecology literature. We examine lead and AR sources within Golden Eagle habitats, exposure routes and toxicity, effects on individuals and populations, synergistic effects, and data and information needs. Continued research addressing data needs and information gaps will help with Golden Eagle conservation planning.
- Published
- 2017
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38. Corporate hedging, firm focus and firm size: the case of REITs
- Author
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Li Xu, Peihwang Wei, and Bei Zeng
- Subjects
040101 forestry ,050208 finance ,Financial economics ,Data needs ,05 social sciences ,Diversification (finance) ,04 agricultural and veterinary sciences ,Property type ,Real estate investment trust ,0502 economics and business ,Econometrics ,0401 agriculture, forestry, and fisheries ,Business, Management and Accounting (miscellaneous) ,Hedge ratio ,Business ,Speculation ,Practical implications ,Finance ,Panel data - Abstract
PurposeThe purpose of this paper is to investigate the substitutability of corporate hedging and diversification in the real estate investment trusts (REITs) industry. The authors hypothesize that, relative to diversified firms, focused firms are more likely to be associated with hedging. The role of firm size is also analyzed.Design/methodology/approachThe logistic regression approach is utilized to analyze the probability of hedging and the panel regression approach is used to examine the amount of hedging.FindingsThe authors find that, relative to diversified firms, firms focused on a single property type are more likely to engage in hedging. However, this finding is significant only for smaller firms, which implies a non-linear relation between hedging and firm size. The evidence is not as strong when firm focus is measured by geographic concentration. In terms of hedging amount, smaller firms’ average hedge ratio is greater than that of larger firms. For either small or large firms group, hedging amounts increase with firm focus measured by either property or geographic concentration and increase with firm sizes.Research limitations/implicationsThe results imply that, relative to diversified REITs, REITs focused on a single property type are more likely to engage in hedging. However, this finding is significant only for smaller firms, which implies a non-linear relation between hedging and firm size. The evidence is not as strong when firm focus is measured by geographic concentration, suggesting that geographic concentration is perceived to be less risky than property type concentration. For either small or large firms group, hedging amounts increase with firm focus measured by either property or geographic concentration and increase with firm sizes, which implies that hedging amount does not depend on firm size. The sample period is limited to the years 2010 to 2013 because some data needs to be manually collected.Practical implicationsThe results imply that REITs consider both property diversification and hedging in managing their risk.Originality/valueThe research represents an early attempt to investigate the relation between corporate hedging and diversification. The investigation into the REIT industry has several advantages such as a lower likelihood of using derivatives for speculation.
- Published
- 2017
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39. Gross production, respiration and biosphere CO2 fluxes under global warming.
- Author
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Box, Elgene O.
- Subjects
RESPIRATION ,BIOSPHERE ,GLOBAL warming ,PHOTOSYNTHESIS ,LANDSCAPES - Abstract
Copyright of Tropical Ecology is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2004
40. Electron interactions with plasma processing gases: present status and future needs
- Author
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Christophorou, Loucas G. and Olthoff, James K.
- Subjects
- *
COLLISIONS (Nuclear physics) , *PLASMA gases - Abstract
The work conducted at the National Institute of Standards and Technology over the last 7 years on the systematic synthesis and assessment of fundamental knowledge on low-energy electron interactions with plasma processing gases is briefly summarized and discussed. This work deals mostly with the primary electron interaction processes. Assessed data on electron collision cross sections and rate coefficients are discussed and their multiple value is indicated. Data needs are identified for electron interactions with ground-state, excited, and transient species, and for electron energy losses. It is indicated that the currently limited knowledge on electron reactions at surfaces and interfaces can be aided by related existing knowledge on electron interactions in dense gases, liquids, clusters, and molecular layers on cold surfaces. [Copyright &y& Elsevier]
- Published
- 2002
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41. Heat capacity of liquids: a survey and data needs
- Author
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Zábranský, Milan and Růžička, Vlastimil
- Subjects
- *
ORGANIC compounds , *LIQUIDS , *CALORIMETRY - Abstract
New experimental data on heat capacities of pure liquid organic and some inorganic compounds were compiled, and recommended values were developed by critical assessment of literature calorimetrically determined heat capacities. The bulk of the work covered data published in the primary literature between 1993 and 1999 and some data of 2000. This paper presents a survey of some recent measurements of liquid heat capacity and highlights needs for new data on liquid heat capacity for large production organic contaminants, hazardous air pollutants and drinking water contaminants. Results of the critical assessment of data were published in the Journal of Physical and Chemical Reference Data. [ABSTRACT FROM AUTHOR]
- Published
- 2002
42. Policy-Oriented Integrated Analysis of Land-Use Change: An Analysis of Data Needs.
- Author
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Briassoulis, Helen
- Subjects
LAND use ,LANDSCAPE assessment ,EMINENT domain ,ECOSYSTEM management ,ENVIRONMENTAL policy ,ENVIRONMENTAL protection - Abstract
Integrated analysis of land-use change in support of informed policy-making for sustainable land use at various spatial levels makes heavy requirements for quality data. This paper aims to structure the principal methodological and practical issues of data needs for this task. The data needs for local level analyses of land-use change are given special attention. The paper adopts an integrated economic–environmental modeling framework and suggests the main types of data needed. Four main data dimensions are distinguished: system of spatial reference, system of temporal reference, definitions, and data collection procedures (sources, collection instruments and techniques, recording and retrieval systems, data format, frequency of data collection). To evaluate the suitability of current data sets as well as to guide the collection of new ones, a scheme based on substantive and practical criteria is employed. The former include compatibility, consistency, and reliability of data, while the latter include availability, ease and cost of data collection/retrieval, and transferability of data. The evaluation indicates the broad gaps in current data sets along the four main data dimensions. Based on this evaluation, the paper suggests framework guidelines to address the main data issues identified. RID="" ID=""
1 CLAUDE: Coordinating Land Use and Land Cover Data and Analyses in Europe. European Commission Concerted Action project (DG-XII); DAPLARCH: Data Plan Development for Land Use and Land Cover Change Research. Program sponsored by IGBP-IHDP (LUCC and DIS). Street, Durham, North Carolina 27707, USA [ABSTRACT FROM AUTHOR]- Published
- 2001
- Full Text
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43. The Utility of Skeletal and Surgical Features for the Personal Identification Process: A Pilot Study
- Author
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Annalisa Cappella, Cristina Cattaneo, Daniele Gibelli, D. De Angelis, Zuzana Obertová, Chiarella Sforza, Marco Cummaudo, and Elisa Castoldi
- Subjects
Adult ,Male ,medicine.medical_specialty ,Pacemaker, Artificial ,Process (engineering) ,Data needs ,Pilot Projects ,Bone and Bones ,Pathology and Forensic Medicine ,Fractures, Bone ,Young Adult ,Clinical information ,Genetics ,medicine ,Humans ,Orthopedic Procedures ,Clinical imaging ,Intensive care medicine ,Dental Restoration, Permanent ,Aged ,Aged, 80 and over ,business.industry ,Forensic anthropology ,Middle Aged ,Forensic Anthropology ,Identification (biology) ,Female ,Bone Diseases ,business ,Forensic Dentistry - Abstract
This pilot study provides a conceptual framework for the application of the anthropological analysis of skeletal features and surgical interventions for the purpose of identification in cases of unknown deceased individuals with unavailable fingerprint, genetic or odontological antemortem data. The study sample includes 276 individuals with known demographic and clinical information from the Italian CAL Milano Cemetery Skeletal Collection. In the sample, 124 (45%) individuals showed one or more skeletal features that may be potentially individualizing. Of these, 79% showed two and more features, which occurred in a multitude of different combinations. Skeletal findings may provide useful postmortem information that can be compared with antemortem witness statements and clinical imaging. However, more research into the utility of dry bone findings and the availability of comparative material, including imaging, and epidemiological data needs to be undertaken before skeletal features can be implemented into identification protocols and databases.
- Published
- 2019
44. Yellow-Billed Loon Subsistence Harvest in Alaska: Challenges in Harvest Assessment of a Conservation Concern Species
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Tamara K. Zeller and Liliana C. Naves
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0106 biological sciences ,Ecology ,biology ,Data needs ,Endangered species ,Subsistence agriculture ,Gavia pacifica ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,010601 ecology ,Geography ,Abundance (ecology) ,Threatened species ,Animal Science and Zoology ,Ethnotaxonomy ,Ecology, Evolution, Behavior and Systematics ,Yellow-billed Loon ,Nature and Landscape Conservation - Abstract
The yellow-billed loon Gavia adamsii was designated as a candidate species for listing as threatened or endangered under the U.S. Endangered Species Act in 2009. Subsistence harvest was identified as a threat based on the 2007 harvest estimate for the Bering Strait region of Alaska. This estimate was unusually high and inconsistent with data on the species' abundance and distribution. We conducted this study in 2011–2012 on St. Lawrence Island, in the Bering Sea, to fulfill data needs related to this Endangered Species Act listing process. Our objectives were to clarify 1) loon species harvested, 2) numbers of loons harvested, and 3) loon harvest methods and uses by local subsistence communities. We conducted harvest surveys, ethnographic research, and shore-based bird counts. Loons were
- Published
- 2017
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45. Overcoming the Challenges of siRNA Delivery: Nanoparticle Strategies
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Neda Shajari, Sadaf Davudian, Behzad Baradaran, Behzad Mansoori, and Ali Mohammadi
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0301 basic medicine ,Web of science ,business.industry ,Data needs ,Gene Transfer Techniques ,Pharmaceutical Science ,Nanotechnology ,Bioinformatics ,Biocompatible material ,Polymeric nanoparticles ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Target site ,030220 oncology & carcinogenesis ,Animals ,Humans ,Nanoparticles ,Incurable diseases ,Medicine ,Nanomedicine ,RNA, Small Interfering ,business - Abstract
Background: Despite therapeutics based on siRNA have an immense potential for the treatment of incurable diseases such as cancers. However, the in vivo utilization of siRNA and also the delivery of this agent to the target site is one of the most controversial challenges. The helpful assistance by nanoparticles can improve stable delivery and also enhance efficacy. More nanoparticle-based siRNA therapeutics is expected to become available in the near future. Methods: The search strategy followed the guidelines of the Centre of Reviews and Dissemination. The studies were identified from seven databases (Scopus, Web of Science, Academic Search Premiere, CINAHL, Medline Ovid, Eric and Cochrane Library). Studies was selected based on titles, abstracts and full texts. Results: One hundred twenty nine papers were included in the review. These papers defined hurdles in RNAi delivery and also strategies to overcome these hurdles. This review discussed the existing hurdles for systemic administration of siRNA as therapeutic agents and highlights the various strategies to overcome these hurdles, including lipid-based nanoparticles and polymeric nanoparticles, and we also briefly reviewed chemical modification. Conclusion: Delivery of siRNA to the target site is the biggest challenge for its application in the clinic. The findings of this review confirmed by encapsulation siRNA in the nanoparticles can overcome these challenges. The rapid progress in nanotechnology has enabled the development of effective nanoparticles as the carrier for siRNA delivery. However, our data about siRNA-based therapeutics and also nanomedicine are still limited. More clinical data needs to be completely understood in the benefits and drawbacks of siRNA-based therapeutics. Prospective studies must pay attention to the in vivo safety profiles of the different delivery systems, including uninvited immune system stimulation and cytotoxicity. In essence, the development of nontoxic, biocompatible, and biodegradable delivery systems for medical application of RNAi-based therapeutics is needed.
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- 2017
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46. Nuclear data for production and medical application of radionuclides: Present status and future needs
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Syed M. Qaim
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Cancer Research ,medicine.medical_specialty ,Data needs ,010403 inorganic & nuclear chemistry ,01 natural sciences ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Intermediate energy ,medicine ,Animals ,Humans ,Production (economics) ,Radiology, Nuclear Medicine and imaging ,Medical physics ,Process engineering ,Radioisotopes ,Radionuclide ,Radiochemistry ,business.industry ,Positron emitters ,Nuclear data ,0104 chemical sciences ,Molecular Medicine ,Environmental science ,Nuclear Medicine ,business - Abstract
Introduction The significance of nuclear data in the choice and medical application of a radionuclide is considered: the decay data determine its suitability for organ imaging or internal therapy and the reaction cross section data allow optimisation of its production route. A brief discussion of reaction cross sections and yields is given. Standard radionuclides The standard SPECT, PET and therapeutic radionuclides are enumerated and their decay and production data are considered. The status of nuclear data is generally good. Some existing discrepancies are outlined. A few promising alternative production routes of 99mTc and 68Ga are discussed. Research-oriented radionuclides The increasing significance of non-standard positron emitters in organ imaging and of low-energy highly-ionizing radiation emitters in internal therapy is discussed, their nuclear data are considered and a brief review of their status is presented. Some other related nuclear data issues are also mentioned. Production of radionuclides using newer technologies The data needs arising from new directions in radionuclide applications (multimode imaging, theranostic approach, radionanoparticles, etc.) are considered. The future needs of data associated with possible utilization of newer irradiation technologies (intermediate energy cyclotron, high-intensity photon accelerator, spallation neutron source, etc.) are outlined. Conclusion Except for a few small discrepancies, the available nuclear data are sufficient for routine production and application of radionuclides. Considerable data needs exist for developing novel radionuclides for applications. The developing future technologies for radionuclide production will demand further data-related activities.
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- 2017
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47. Development of valuable predictive read-across models based on 'real-life' (sparse) nanotoxicity data
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Agnieszka Gajewicz
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Computer science ,Materials Science (miscellaneous) ,Data needs ,02 engineering and technology ,010501 environmental sciences ,Hazard analysis ,021001 nanoscience & nanotechnology ,computer.software_genre ,01 natural sciences ,Human health ,Principal component analysis ,Pattern recognition (psychology) ,Data mining ,0210 nano-technology ,Risk assessment ,computer ,0105 earth and related environmental sciences ,General Environmental Science - Abstract
In view of the rapidly growing number of synthesized nanoparticles as well as public concerns about their potential negative impacts on human health and the environment, there is an urgent need to address current risk assessment data gaps. Thus, the development of comprehensive computational methods (e.g., read-across methods) for filling data gaps that meet realistic data needs is crucial. The present study proposes a new quantitative read-across approach based on linear algebra (i.e., one/two-point-slope formula) and one of the most widely used unsupervised pattern recognition methods (i.e., principal component analysis). The applicability and usefulness of the newly developed read-across algorithm for pre-screening hazard assessment of nanomaterials are confirmed by using three literature nanotoxicity datasets. The findings from this study clearly indicate that the proposed read-across approach provides reasonably accurate and statistically significant results of estimations of nanotoxicity data. Therefore, the method can be used for prioritizing current and future nanoparticles for the purpose of further testing and risk assessment.
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- 2017
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48. Future Landsat Data Needs at the Local and State Levels: An AmericaView Perspective
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Russell G. Congalton and Ramesh Sivanpillai
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Earth observation ,Geography ,Remote sensing application ,Data needs ,Perspective (graphical) ,Geological survey ,State (computer science) ,Computers in Earth Sciences ,Cartography - Abstract
Earth observation imagery collected by the series of Landsat satellites constitutes the longest and most consistent collection of moderate spatial resolution remotely sensed data. Feedback from the Landsat user community has played an important role in assessing its utility and making improvements to future Landsat missions. The United States Geological Survey (USGS) and the National Aeronautical and Space Administration (NASA) continue to input from user communities. This paper describes the outcome of soliciting input from experts associated with AmericaView (AV), a non-profit organization aimed at promoting remote sensing applications in the US. The AV community identified the importance of rigorously calibrated Landsat data for LULC applications at the state level and made several recommendations for future Landsat missions. Recommendations suggested by the community of AV experts provide extremely valuable insights to USGS and NASA to further their discussions about the design and operation of future Landsat missions.
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- 2016
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49. A predictive data-driven framework for endocrine prioritization: a triazole fungicide case study
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M. Sue Marty, Ann M. Blacker, Katie Paul Friedman, Richard C. Peffer, Pat Kwiatkowski, Reza J. Rasoulpour, Douglas C. Wolf, Sabitha Papineni, Amber K. Goetz, and Kun Don Yi
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0301 basic medicine ,Prioritization ,Data needs ,Review ,Computational biology ,Endocrine Disruptors ,010501 environmental sciences ,Pharmacology ,Toxicology ,high-throughput screening ,01 natural sciences ,Toxicology studies ,Tox21 ,03 medical and health sciences ,Human health ,ExpoCast ,Nitriles ,Toxicity Tests ,Medicine ,Review Articles ,0105 earth and related environmental sciences ,business.industry ,Guideline ,Triazoles ,Endocrine Disruptor Screening Program ,United States ,Fungicides, Industrial ,myclobutanil ,ToxCast ,030104 developmental biology ,triadimefon ,Endocrine disruptor ,Human exposure ,Biological Assay ,propiconazole ,business ,Relevant information - Abstract
The US Environmental Protection Agency Endocrine Disruptor Screening Program (EDSP) is a tiered screening approach to determine the potential for a chemical to interact with estrogen, androgen, or thyroid hormone systems and/or perturb steroidogenesis. Use of high-throughput screening (HTS) to predict hazard and exposure is shifting the EDSP approach to (1) prioritization of chemicals for further screening; and (2) targeted use of EDSP Tier 1 assays to inform specific data needs. In this work, toxicology data for three triazole fungicides (triadimefon, propiconazole, and myclobutanil) were evaluated, including HTS results, EDSP Tier 1 screening (and other scientifically relevant information), and EPA guideline mammalian toxicology study data. The endocrine-related bioactivity predictions from HTS and information that satisfied the EDSP Tier 1 requirements were qualitatively concordant. Current limitations in the available HTS battery for thyroid and steroidogenesis pathways were mitigated by inclusion of guideline toxicology studies in this analysis. Similar margins (3–5 orders of magnitude) were observed between HTS-predicted human bioactivity and exposure values and between in vivo mammalian bioactivity and EPA chronic human exposure estimates for these products’ registered uses. Combined HTS hazard and human exposure predictions suggest low priority for higher-tiered endocrine testing of these triazoles. Comparison with the mammalian toxicology database indicated that this HTS-based prioritization would have been protective for any potential in vivo effects that form the basis of current risk assessment for these chemicals. This example demonstrates an effective, human health protective roadmap for EDSP evaluation of pesticide active ingredients via prioritization using HTS and guideline toxicology information.
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- 2016
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50. When autonomous agents model other agents: An appeal for altered judgment coupled with mouths, ears, and a little more tape
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Jacob W. Crandall
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Linguistics and Language ,Reflection (computer programming) ,Computer science ,Data needs ,Autonomous agent ,Appeal ,02 engineering and technology ,Language and Linguistics ,Artificial Intelligence ,Human–computer interaction ,020204 information systems ,0202 electrical engineering, electronic engineering, information engineering ,020201 artificial intelligence & image processing ,Set (psychology) - Abstract
Agent modeling has rightfully garnered much attention in the design and study of autonomous agents that interact with other agents. However, despite substantial progress to date, existing agent-modeling methods too often (a) have unrealistic computational requirements and data needs; (b) fail to properly generalize across environments, tasks, and associates; and (c) guide behavior toward inefficient (myopic) solutions. Can these challenges be overcome? Or are they just inherent to a very complex problem? In this reflection, I argue that some of these challenges may be reduced by, first, modeling alternative processes than what is often modeled by existing algorithms and, second, considering more deeply the role of non-binding communication signals. Additionally, I believe that progress in developing autonomous agents that effectively interact with other agents will be enhanced as we develop and utilize a more comprehensive set of measurement tools and benchmarks. I believe that further development of these areas is critical to creating autonomous agents that effectively model and interact with other agents.
- Published
- 2020
- Full Text
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