1,749 results
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2. Paper and Community Forest Governance in the Peruvian Amazon.
- Author
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Chuvileva, Ioulia
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- 2017
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3. Surviving disruption: the grocer's tale
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Blitz, Amy
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- 2021
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4. The democratization of intangible luxury
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Ramadan, Zahy
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- 2019
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5. The role of the C-suite in Agile transformation: the case of Amazon
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Denning, Stephen
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- 2018
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6. Constructing audit society in the virtual world: the case of the online reviewer
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Jeacle, Ingrid
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- 2017
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7. The Evolution of the World's Most Valuable Brands in the Period 2018-2023.
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Toma, Sorin-George
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BRAND name products ,QUALITATIVE research ,ORDER picking systems - Abstract
The competition between enterprises has become more fiercely as they have the possibility to easily move across national boundaries to exploit opportunities in other countries or markets. The turbulent market environment imposes enterprises, irrespective of their size, industry and geographical region, to permanently adapt to its everchanging conditions. This is why they have tried to identify and implement various techniques and methods in their activities and processes in order to attain high levels of competitiveness. One of them is branding, a powerful marketing tool and an important aspect of any business. The paper aims to briefly define the brand concept and present the evolution of ten world's most valuable brands in the period 2018-2023. In this respect, the author used a qualitative research method. The results of the paper concludes that the American brands have dominated the hierarchy. Amazon and Apple were the two main competitors for the global supremacy. [ABSTRACT FROM AUTHOR]
- Published
- 2023
8. Amazon Deforestation and Global Meat Consumption Trends: An Assessment of Land Use Change and Market Data from Rondônia That Shows Why We Should Consider Changing Our Diets.
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Donoso, Veronica Garcia, Hirye, Mayumi C. M., Gerwenat, Christiane, and Reicher, Christa
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This paper seeks to elucidate the interrelationship between global meat consumption and deforestation in the Amazon region. To this end, empirical research is conducted to investigate land use changes in Rondônia and the expansion of pasture areas and beef production. Brazil is one of the largest beef producers in the world, with products destined for local and global markets. Based on bibliographical research, the paper analyzes maps of land use change between 1985 and 2021, using Landsat satellite imagery and the MapBiomas methodology for Landsat mosaic and classification. The research shows that beef from Rondônia is primarily purchased and consumed in Brazil, but it is also bought and sold on the international market. Landsat imagery analysis shows the predominance of forest conversion to pasture in Rondônia. The results show that deforestation in the Amazon is directly linked to the growth of cattle ranching. Land use change from native forest to pasture for beef cattle production is a reality in the Brazilian Amazon, especially in Rondônia. It suggests the urgent need for more conscious consumption and production practices as well as ethical and sustainable eating habits. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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9. Netflix, Amazon Prime, and YouTube: Comparative Study of Streaming Infrastructure and Strategy.
- Author
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Pandey, Suman, Yang-Sae Moon, and Mi-Jung Choi
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Netflix, Amazon Prime, and YouTube are the most popular and fastest-growing streaming services globally. It is a matter of great interest for the streaming service providers to preview their service infrastructure and streaming strategy in order to provide new streaming services. Hence, the first part of the paper presents a detailed survey of the Content Distribution Network (CDN) and cloud infrastructure of these service providers. To understand the streaming strategy of these service providers, the second part of the paper deduces a common quality-of-service (QoS) model based on rebuffering time, bitrate, progressive download ratio, and standard deviation of the On-Off cycle. This model is then used to analyze and compare the streaming behaviors of these services. This study concluded that the streaming behaviors of all these services are similar as they all use Dynamic Adaptive Streaming over HTTP (DASH) on top of TCP. However, the amount of data that they download in the buffering state and steady-state vary, resulting in different progressive download ratios, rebuffering levels, and bitrates. The characteristics of their On-Off cycle are also different resulting in different QoS. Hence a thorough adaptive bit rate (ABR) analysis is presented in this paper. The streaming behaviors of these services are tested on different access network bandwidths, ranging from 75 kbps to 30 Mbps. The survey results indicate that Netflix QoS and streaming behavior are significantly consistent followed by Amazon Prime and YouTube. Our approach can be used to compare and contrast the streaming services' strategies and finetune their ABR and flow control mechanisms. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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10. Post-Diversity, Precarious Work for All: Unmaking borders to govern labour in the Amazon warehouse.
- Author
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Zanoni, Patrizia and Miszczyński, Miłosz
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SOCIOMATERIALITY ,WAREHOUSES ,SOCIAL norms ,GOVERNMENTALITY ,CRITICAL theory ,CAPITALISM - Abstract
This paper investigates the (un)making of borders as a form of labour governmentality in one of Amazon's warehouses in Poland. Guided by a critical theory of borders as a form of labour governmentality under global capitalism, we identify organizational practices through which socio-demographic categories traditionally deployed as principles of organizing work (e.g., gender, age, ability) are un made: the management of deskilled labour through an algorithmic system, the non-selective hiring of workers, the enforcement of social norms of interpersonal respect and a universal system of casualized employment. Together, these practices constitute workers as undifferentiated, interchangeable and equal labour, let them compete with each other under harshly exploitative conditions, and continuously dispose of the least productive among them, keeping all in structural uncertainty. The study contributes to the critical diversity literature by showing a 'post-diversity' governmentality that rests on equality, competition and precarization of labour as a whole, rather than segregation and marginalization through an 'ideal worker' norm. This labour governmentality operates by eliciting consent from historically subordinated workers and eliminating the advantage of historically relatively privileged ones. Unmaking borders within labour inside the organization, this governmentality at the same time crucially rests on borders outside it. [ABSTRACT FROM AUTHOR]
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- 2024
- Full Text
- View/download PDF
11. La Niña weather impacts dietary patterns and dietary diversity among children in the Peruvian Amazon
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Laura E. Caulfield, Aubrey Bauck, Pablo Peñataro Yori, Maribel Paredes Olortegui, Gwenyth O. Lee, Benjamin F. Zaitchik, Ramya Ambikapathi, and Margaret Kosek
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medicine.medical_specialty ,Longitudinal study ,010504 meteorology & atmospheric sciences ,media_common.quotation_subject ,Dietary diversity ,Medicine (miscellaneous) ,Biology ,01 natural sciences ,Food group ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,parasitic diseases ,Peru ,medicine ,Climate change ,Animals ,Humans ,030212 general & internal medicine ,Girl ,Longitudinal Studies ,Amazon ,Children ,Weather ,0105 earth and related environmental sciences ,media_common ,Nutrition ,Consumption (economics) ,El Nino-Southern Oscillation ,Nutrition and Dietetics ,Community Nutrition ,Amazon rainforest ,Public health ,Public Health, Environmental and Occupational Health ,Diets ,Diet ,La Niña ,Female ,ENSO ,Demography ,Research Paper - Abstract
Objective:In 2011–2012, severe El Niño Southern Oscillation (ENSO) conditions (La Niña) led to massive flooding and temporarily displacement in the Peruvian Amazon. Our aims were to examine the impact of this ENSO exposure on child diets, in particular: (1) frequency of food consumption patterns, (2) the amount of food consumed (g/d), (3) dietary diversity (DD), (4) consumption of donated foods, among children aged 9–36 months living in the outskirts of City of Iquitos in the Amazonian Peru.Design:This was a longitudinal study that used quantitative 24-h recall dietary data collection from children aged 9–36 months from 2010 to 2014 as part of the MAL-ED birth cohort study.Setting:Iquitos, Loreto, Peru.Participants:Two hundred and fifty-two mother–child dyads.Results:The frequency of grains, rice, dairy and sugar in meals reduced by 5–7 %, while the frequency of plantain in meals increased by 24 % after adjusting for covariates. ENSO exposure reduced girl’s intake of plantains and sugar. Despite seasonal fluctuations in the availability of fruits, vegetables and fish, DD remained constant across seasons and as children aged. However, DD was significantly reduced under moderate La Niña conditions by 0·32 (P < 0·05) food groups. Adaptive social strategies such as consumption of donated foods were significantly higher among households with girls.Conclusions:This is the first empirical study to show differential effect of the ENSO on the dietary patterns of children, highlighting differences by gender. Public health nutrition programmes should be climate- and gender-sensitive in their efforts to safeguard the diets of vulnerable populations.
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- 2020
12. Regional-Scale Assessment of Burn Scar Mapping in Southwestern Amazonia Using Burned Area Products and CBERS/WFI Data Cubes.
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Ferro, Poliana Domingos, Mataveli, Guilherme, Arcanjo, Jeferson de Souza, Dutra, Débora Joana, Medeiros, Thaís Pereira de, Shimabukuro, Yosio Edemir, Pessôa, Ana Carolina Moreira, de Oliveira, Gabriel, and Anderson, Liana Oighenstein
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CUBES ,REGIONAL development ,ECOLOGICAL disturbances ,GRID cells ,LAND cover ,FRACTIONS - Abstract
Fires are one of the main sources of disturbance in fire-sensitive ecosystems such as the Amazon. Any attempt to characterize their impacts and establish actions aimed at combating these events presupposes the correct identification of the affected areas. However, accurate mapping of burned areas in humid tropical forest regions remains a challenging task. In this paper, we evaluate the performance of four operational BA products (MCD64A1, Fire_cci, GABAM and MapBiomas Fogo) on a regional scale in the southwestern Amazon and propose a new approach to BA mapping using fraction images extracted from data cubes of the Brazilian orbital sensors CBERS-4/WFI and CBERS-4A/WFI. The methodology for detecting burned areas consisted of applying the Linear Spectral Mixture Model to the images from the CBERS-4/WFI and CBERS-4A/WFI data cubes to generate shadow fraction images, which were then segmented and classified using the ISOSEG non-supervised algorithm. Regression and similarity analyses based on regular grid cells were carried out to compare the BA mappings. The results showed large discrepancies between the mappings in terms of total area burned, land use and land cover affected (forest and non-forest) and spatial location of the burned area. The global products MCD64A1, GABAM and Fire_cci tended to underestimate the area burned in the region, with Fire_cci underestimating BA by 88%, while the regional product MapBiomas Fogo was the closest to the reference, underestimating by only 7%. The burned area estimated by the method proposed in this work (337.5 km
2 ) was 12% higher than the reference and showed a small difference in relation to the MapBiomas Fogo product (18% more BA). These differences can be explained by the different datasets and methods used to detect burned areas. The adoption of global products in regional studies can be critical in underestimating the total area burned in sensitive regions. Our study highlights the need to develop approaches aimed at improving the accuracy of current global products, and the development of regional burned area products may be more suitable for this purpose. Our proposed approach based on WFI data cubes has shown high potential for generating more accurate regional burned area maps, which can refine BA estimates in the Amazon. [ABSTRACT FROM AUTHOR]- Published
- 2024
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13. Considerations for science and technology policies in the context of Amazon sustainability.
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Monteiro, Raimunda, Bemerguy de Albuquerque, Esther, Guimarães Vieira, Ima Célia, and Candotti, Ennio
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POLICY sciences - Abstract
Copyright of Sustainability in Debate / Sustentabilidade em Debate is the property of University of Brasilia, Center for Sustainable Development 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
- 2024
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14. “Nem inferno verde nem um paraíso perdido”: o papel da Amazônia no pensamento geopolítico de Golbery do Couto e Silva e Carlos de Meira Mattos (1950-1975).
- Author
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Oliveira de Mello, Gabriel Felipe
- Abstract
Copyright of Revista Maracanan is the property of Revista Maracanan 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
- 2024
- Full Text
- View/download PDF
15. Molecular evidence of sustained urban malaria transmission in Amazonian Brazil, 2014–2015
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Marcelo U. Ferreira, Lais Camoese Salla, Priscila T. Rodrigues, Rodrigo M. Corder, Simone Ladeia-Andrade, and Igor Cavallini Johansen
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Male ,0301 basic medicine ,Latin Americans ,Genotyping Techniques ,Urban Population ,Epidemiology ,Plasmodium vivax ,molecular epidemiology ,law.invention ,0302 clinical medicine ,law ,Cluster Analysis ,Prospective Studies ,030212 general & internal medicine ,Child ,Socioeconomics ,biology ,Amazon rainforest ,Incidence ,Middle Aged ,3. Good health ,Infectious Diseases ,Geography ,Transmission (mechanics) ,POPULAÇÃO URBANA ,Child, Preschool ,Female ,Brazil ,Adult ,Adolescent ,Genotype ,030106 microbiology ,malaria ,Disease cluster ,Young Adult ,03 medical and health sciences ,parasitic diseases ,Disease Transmission, Infectious ,Malaria, Vivax ,medicine ,Humans ,Amazon ,Original Paper ,Molecular epidemiology ,Haplotype ,population structure ,biology.organism_classification ,medicine.disease ,urban ,Malaria ,Microsatellite Repeats - Abstract
The relative contribution of imported vs. locally acquired infections to urban malaria burden remains largely unexplored in Latin America, the most urbanised region in the developing world. Here we use a simple molecular epidemiology framework to examine the transmission dynamics of Plasmodium vivax in Mâncio Lima, the Amazonian municipality with the highest malaria incidence rate in Brazil. We prospectively genotyped 177 P. vivax infections diagnosed in urban residents between June 2014 and July 2015 and showed that local parasites are structured into several lineages of closely related microsatellite haplotypes, with the largest genetic cluster comprising 32% of all infections. These findings are very unlikely under the hypothesis of multiple independent imports of parasite strains from the rural surroundings. Instead, the presence of an endemic near-clonal parasite lineage circulating over 13 consecutive months is consistent with a local P. vivax transmission chain in the town, with major implications for malaria elimination efforts in this and similar urban environments across the Amazon.
- Published
- 2020
16. Floristic composition in ecotone forests in northern Brazilian Amazonia: preliminary data
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Ricardo de Oliveira Perdiz, Hugo Leonardo Sousa Farias, Williamar Rodrigues Silva, Carlos Darwin Angulo Villacorta, Lidiany Camila da Silva Carvalho, Andressa Sampaio Oliveira, Reinaldo Imbrozio Barbosa, and Arthur Camurça Citó
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0106 biological sciences ,Florística ,Ilha de Maracá ,Biodiversity & Conservation ,010607 zoology ,010603 evolutionary biology ,01 natural sciences ,Floristics ,tree species ,Dominance (ecology) ,Composição Florística ,forest inventory ,Plantae ,lcsh:QH301-705.5 ,Amazon ,Ecology, Evolution, Behavior and Systematics ,palms ,Forest inventory ,Ecology ,biology ,Amazon rainforest ,Diameter at breast height ,Roraima ,Forestry ,Maracá Island ,Ecotone ,biology.organism_classification ,Sapotaceae ,Data Paper (Biosciences) ,Geography ,lcsh:Biology (General) ,Americas ,Brazil ,Peltogyne - Abstract
Ecotone has been defined as “a multi-dimensional environmentally stochastic interaction zone between ecological systems with characteristics defined in space and time, and by the strength of the interaction” (Hufkens et al. 2009). This is a known concept to define transitional zones between two or more ecological communities, ecosystems or biotic regions. Ecotone forests, dispersed in northern Brazilian Amazonia, are natural formations which have been largely affected by anthropogenic impacts, such as deforestation and fire. Maracá Ecological Station, State of Roraima, Brazil, is a protected area with extensive representations of ecotone forests in this region of the Amazonia. Forest inventories and floristic surveys are important as they extend our knowledge (1) of forest structure and tree species composition and (2) of tree and palm species ecology in this region of the Amazonia. Both improve our ability to predict changes in plant diversity, considering the future scenarios of climate change in comparison with previous surveys performed in Maracá. We present a forest inventory carried out in 129 plots (10 m x 50 m; 6.45 ha in total) dispersed in a grid (5 km x 5 km) located in a forest zone ecotone in the eastern part of Maracá Ecological Station. All stems (tree + palm) with diameter at breast height ≥ 10 cm were recorded, identified and measured. A total of 3040 stems were recorded (tree = 2815; palm = 225), corresponding to 42 botanic families and 140 identified species. Seven families and 20 genera contained unidentified taxa (12.2%). Sapotaceae (735 stems; 10 species), Leguminosae (409; 24) and Rubiaceae (289; 12) were the most abundant families. Peltogyne gracilipes Ducke (Leguminosae), Pradosia surinamensis (Eyma) T.D.Penn. (Sapotaceae) and Ecclinusa guianensis Eyma (Sapotaceae) were the species with the highest importance value index (~ 25%). The dominance (m2 ha-1) of these species corresponds to > 36% of the total value observed in the forest inventory. Our dataset provides complementary floristic and structure information on tree and palm in Maracá, improving our knowledge of this Amazonian ecotone forest.
- Published
- 2019
17. O futuro dos livros.
- Author
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THOMPSON, JOHN B.
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DIGITAL technology ,PUBLISHING ,CULTURAL industries ,ELECTRONIC books ,BOOK industry ,MASS media industry - Abstract
Copyright of MATRIZes is the property of Universidade de Sao Paulo, Programa de Pos Graduacao em Ciencias da Comunicacao 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
- 2023
- Full Text
- View/download PDF
18. Consumer Perceptions of Wearable Technology Devices: Retrospective Review and Analysis
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Xiaomeng Deng, Kimberly P.L. Chong, Benjamin K.P. Woo, and Julia Z. Guo
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020205 medical informatics ,media_common.quotation_subject ,Internet privacy ,Wearable computer ,Health Informatics ,Fitness Trackers ,Information technology ,02 engineering and technology ,Fitbit ,Wearable Electronic Devices ,03 medical and health sciences ,0302 clinical medicine ,Perception ,Health care ,0202 electrical engineering, electronic engineering, information engineering ,Humans ,030212 general & internal medicine ,sleep ,wearable technology devices ,Set (psychology) ,Amazon ,Wearable technology ,Retrospective Studies ,media_common ,Original Paper ,Sleep hygiene ,business.industry ,T58.5-58.64 ,Discretion ,Accountability ,Public aspects of medicine ,RA1-1270 ,business ,Psychology - Abstract
Background Individuals of all ages are becoming more health conscious, and wearable technology devices (eg, Fitbit and Apple Watch) are becoming increasingly popular in encouraging healthy lifestyles. Objective The aim of this paper was to explore how consumers use wearable devices. Methods A retrospective review was done on the top-rated verified purchase reviews of the Fitbit One posted on Amazon.com between January 2014 and August 2018. Relevant themes were identified by qualitatively analyzing open-ended reviews. Results On retrieval, there were 9369 reviews with 7706 positive reviews and 1663 critical reviews. The top 100 positive and top 100 critical comments were subsequently analyzed. Four major themes were identified: sleep hygiene (“charts when you actually fall asleep, when you wake up during the night, when you're restless--and gives you a cumulative time of “actual sleep” as well as weekly averages.”), motivation (“25 lbs lost after 8 months – best motivator ever!”), accountability (“platform to connect with people you know and set little competitions or group…fun accountability if you set a goal with a friend/family.”), and discretion (“able to be clipped to my bra without being seen.”). Alternatively, negative reviewers felt that the wearable device’s various tracking functions, specifically steps and sleep, were inaccurate. Conclusions Wearable technology devices are an affordable, user-friendly application that can support all individuals throughout their everyday lives and potentially be implemented into medical surveillance, noninvasive medical care, and mobile health and wellness monitoring. This study is the first to explore wearable technology device use among consumers, and further studies are needed to examine the limitless possibilities of wearable devices in health care.
- Published
- 2020
19. Scale dependency of conservation outcomes in a forest-offsetting scheme
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Marta Lisli Giannichi, Yoni Gavish, Timothy R. Baker, Martin Dallimer, and Guy Ziv
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0106 biological sciences ,deforestación evitada ,restauración ,Conservation of Natural Resources ,restoration ,compensaciones ,Forests ,010603 evolutionary biology ,01 natural sciences ,offsets ,亚马逊 ,tierras privadas ,空间尺度 ,avoided deforestation ,补偿 ,Amazonía ,避免森林采伐 ,私有土地 ,Contributed Papers ,Amazon ,Ecology, Evolution, Behavior and Systematics ,Ecosystem ,Nature and Landscape Conservation ,spatial scale ,Ecology ,Amazon rainforest ,Agroforestry ,escala espacial ,010604 marine biology & hydrobiology ,恢复 ,conservation ,conservación ,Contributed Paper ,Habitat destruction ,Habitat ,Threatened species ,Spatial ecology ,Environmental science ,private lands ,Brazil ,保护 - Abstract
Offset schemes help avoid or revert habitat loss through protection of existing habitat (avoided deforestation), through the restoration of degraded areas (natural regrowth), or both. The spatial scale of an offset scheme may influence which of these 2 outcomes is favored and is an important aspect of the scheme's design. However, how spatial scale influences the trade‐offs between the preservation of existing habitat and restoration of degraded areas is poorly understood. We used the largest forest offset scheme in the world, which is part of the Brazilian Forest Code, to explore how implementation at different spatial scales may affect the outcome in terms of the area of avoided deforestation and area of regrowth. We employed a numerical simulation of trade between buyers (i.e., those who need to offset past deforestation) and sellers (i.e., landowners with exceeding native vegetation) in the Brazilian Amazon to estimate potential avoided deforestation and regrowth at different spatial scales of implementation. Allowing offsets over large spatial scales led to an area of avoided deforestation 12 times greater than regrowth, whereas restricting offsets to small spatial scales led to an area of regrowth twice as large as avoided deforestation. The greatest total area (avoided deforestation and regrowth combined) was conserved when the spatial scale of the scheme was small, especially in locations that were highly deforested. To maximize conservation gains from avoided deforestation and regrowth, the design of the Brazilian forest‐offset scheme should focus on restricting the spatial scale in which offsets occur. Such a strategy could help ensure conservation benefits are localized and promote the recovery of degraded areas in the most threatened forest landscapes., Article impact statement: Conservation offset schemes may yield greater additionality through avoided deforestation and restoration if implemented in smaller areas.
- Published
- 2018
20. Data from the ichthyological collection of the Museu Paraense Emílio Goeldi
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Marcos Paulo Alves de Sousa, Lorran Alves da Cruz Ramos, Timóteo Monteiro da Silva, Juliana Corrêa dos Santos, Wolmar Benjamin Wosiacki, and Victor Amazonas Viegas Ferreira
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0106 biological sciences ,Sarcopterygii ,biology ,Amazon rainforest ,Actinopterygii ,04 agricultural and veterinary sciences ,occurrence ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Archaeology ,Chondrichthyes ,Geography ,ichthyology ,lcsh:Zoology ,040102 fisheries ,dataset ,0401 agriculture, forestry, and fisheries ,Animal Science and Zoology ,Ichthyology ,lcsh:QL1-991 ,Amazon ,Ecology, Evolution, Behavior and Systematics ,Data Paper ,Global biodiversity - Abstract
This dataset contains information on the occurrence of Neotropical fishes (Actinopterygii, Chondrichthyes, Sarcopterygii) collected in South America, mostly from the Brazilian Amazon. The ichthyology collections of the Museu Paraense Emílio Goeldi (MPEG: http://www.museu-goeldi.br/) include specimens collected between 1900 and 2014. The dataset is now available for public consultation on the Global Biodiversity Information Facility portal (http://www.gbif.org/dataset/b0059a3a-5cab-4a08-8d14-d92c23378e43), and through Sistema de Informação sobre a Biodiversidade Brasileira (http://gbif.sibbr.gov.br/explorador/pt/recurso/62).
- Published
- 2017
21. The metabolic cost of nesting: body condition and blood parameters of Caiman crocodilus and Melanosuchus niger in Central Amazonia
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Barão-Nóbrega, José António Lemos, Marioni, Boris, Botero-Arias, Robinson, Nogueira, António J.A., Lima, Emerson Silva, Magnusson, William Ernest, Silveira, Ronis da, and Marcon, Jaydione Luíz
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Male ,Blood Glucose ,0106 biological sciences ,Physiology ,010607 zoology ,Várzea ,Crocodilian ,Triacylglycerol ,010603 evolutionary biology ,01 natural sciences ,Biochemistry ,Nesting Behavior ,Endocrinology ,Animals ,Comparative Study ,Lactic Acid ,Alligators And Crocodiles ,Nesting ,Amazon ,Triglycerides ,Ecology, Evolution, Behavior and Systematics ,Original Paper ,Body condition ,Animal ,Brasil ,Glucose Blood Level ,Caiman ,Blood ,Nest ,Female ,Animal Science and Zoology ,Analysis - Abstract
Although nesting ecology is well studied in several crocodilian species, it is not known how nest attendance influences physiology and body condition of nesting females. In this study, we describe body condition and serum biochemical values of nesting female, non-nesting female and male spectacled caiman (Caiman crocodilus) and black caiman (Melanosuchus niger) in two areas of Central Amazonia. We also evaluated the effect of nest age and nest distance to water on body condition and blood parameters of nesting females. Body condition and plasmatic concentrations of glucose, triglycerides, lactate and uric acid of nesting females were significantly different from those of non-nesting females and males in C. crocodilus, but not in M. niger. Our study also demonstrated that nest age and distance to water had a negative effect on female body condition in C. crocodilus, but not in M. niger. Female C. crocodilus attending older nests or nests built further away from permanent water bodies tended to have lower body condition. Our results demonstrate that the nesting strategy of C. crocodilus has a metabolic cost associated with nest attendance for nesting females, which appear to depend on accumulated energetic reserves during nest attendance. In contrast, nest attendance had little effect on the physiology of female M. niger. © 2017, The Author(s).
- Published
- 2017
22. Limited acclimation in leaf anatomy to experimental drought in tropical rainforest trees
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Binks, Oliver, Meir, Patrick, Rowland, Lucy, da Costa, Antonio Carlos Lola, Vasconcelos, Steel Silva, de Oliveira, Alex Antonio Ribeiro, Ferreira, Leandro, and Mencuccini, Maurizio
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Rainforest ,Acclimatization ,fungi ,food and beverages ,gas exchange ,anatomical plasticity ,leaf physiology ,Droughts ,Trees ,Plant Leaves ,water stress ,through-fall exclusion ,water relations ,Amazon ,Research Paper - Abstract
Dry periods are predicted to become more frequent and severe in the future in some parts of the tropics, including Amazonia, potentially causing reduced productivity, higher tree mortality and increased emissions of stored carbon. Using a long-term (12 year) through-fall exclusion (TFE) experiment in the tropics, we test the hypothesis that trees produce leaves adapted to cope with higher levels of water stress, by examining the following leaf characteristics: area, thickness, leaf mass per area, vein density, stomatal density, the thickness of palisade mesophyll, spongy mesophyll and both of the epidermal layers, internal cavity volume and the average cell sizes of the palisade and spongy mesophyll. We also test whether differences in leaf anatomy are consistent with observed differential drought-induced mortality responses among taxa, and look for relationships between leaf anatomy, and leaf water relations and gas exchange parameters. Our data show that trees do not produce leaves that are more xeromorphic in response to 12 years of soil moisture deficit. However, the drought treatment did result in increases in the thickness of the adaxial epidermis (TFE: 20.5 ± 1.5 µm, control: 16.7 ± 1.0 µm) and the internal cavity volume (TFE: 2.43 ± 0.50 mm3 cm−2, control: 1.77 ± 0.30 mm3 cm−2). No consistent differences were detected between drought-resistant and drought-sensitive taxa, although interactions occurred between drought-sensitivity status and drought treatment for the palisade mesophyll thickness (P = 0.034) and the cavity volume of the leaves (P = 0.025). The limited response to water deficit probably reflects a tight co-ordination between leaf morphology, water relations and photosynthetic properties. This suggests that there is little plasticity in these aspects of plant anatomy in these taxa, and that phenotypic plasticity in leaf traits may not facilitate the acclimation of Amazonian trees to the predicted future reductions in dry season water availability.
- Published
- 2016
23. Dataset from the Snakes (Serpentes, Reptiles) collection of the Museu Paraense Emílio Goeldi, Pará, Brazil
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Cleverson Rannieri Meira dos Santos, Angelo Cortez Moreira Dourado, Lorran Alves da Cruz Ramos, João Fabrício de Melo Sarmento, Timóteo Monteiro da Silva, Fernanda Magalhães da Silva, Paula Carolina Rodrigues de Almeida, Marcos Paulo Alves de Sousa, and Ana Lúcia da Costa Prudente
- Subjects
Reptiles ,Squamata ,Reptilia ,Biodiversity & Conservation ,Lialis ,Rainforest ,Amniota ,diversity ,Gnathostomata ,collection ,Animalia ,Branchiostoma capense ,lcsh:QH301-705.5 ,Amazon ,inventor ,Ecology, Evolution, Behavior and Systematics ,Vertebrata ,Craniata ,Serpentes ,Ecology ,biology ,Amazon rainforest ,Ymeria ,Reptiliomorpha ,Ophidia ,Cephalornis ,Snakes ,South America ,biology.organism_classification ,Archaeology ,Data Paper (Biosciences) ,Geography ,lcsh:Biology (General) ,inventories ,biodiversity dataset ,rainforest ,Global biodiversity - Abstract
Background We present a dataset with information from the snake collection of the Museu Paraense Emílio Goeldi, known as the “Ophidia Collection”. This collection currently has 26,728 specimens of snakes, including 9 families, 66 genera and 220 species. For the most part, it represents material from the Amazon Region. Specimens are preserved mostly in wet (alcohol) preparation, with some samples preserved in dry form, as is the case of the shells and skeletons of turtles. The dataset is now available for public consultation on the Global Biodiversity Information Facility portal (https://doi.org/10.15468/lt0wet). New information The Herpetological collection of Museu Paraense Emílio Goeldi comprises the largest collection of its kind in the Amazon region with about 100,000 specimens of amphibians and reptiles (chelonians, alligators, lizards, snakes and amphisbaenians). This collection currently has 26,728 specimens of snakes, including 9 families, 66 genera and 220 species, some of which are endemic to the Amazon rainforest region. The Museu Paraense Emílio Goeldi is the second oldest institution of science in Brazil in activity, founded in 1866.
- Published
- 2019
24. Different formulations of camu-camu popsicle: characterization, vitamin C and sensorial analysis of an opportunity to family agroindustry
- Author
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Edvan Alves Chagas, Maria Luiza Grigio, and Maria Fernanda Berlingieri Durigan
- Subjects
Myrciaria dubia ,Vitamin C ,Pulp (paper) ,Titratable acid ,lcsh:TX341-641 ,engineering.material ,Micronutrient ,Sensory analysis ,caçari ,lcsh:Technology (General) ,ice cream ,engineering ,lcsh:T1-995 ,Food science ,Sugar ,lcsh:Nutrition. Foods and food supply ,Amazon ,Flavor ,Completely randomized design ,Food Science ,Biotechnology ,Mathematics - Abstract
The high levels of vitamin C in camu-camu have stimulated the interests of extractivists, farmers and consumers. The aim of this study was to characterize five accessible for family agroindustry different formulations of camu-camu popsicles and assess their acceptance. A completely randomized design was used and the treatments consisted of five different popsicle formulations: camu-camu pulp (T1 and T2: 27%, T3 and T4: 20.8%; T5: 61%), water (T1 and T2: 43.5%, T3 and T4: 20.8%; T5: no water), whole milk powder (T1 and T2: 14.7%, T3 and T4: 29.2%; T5: 18.3%), sugar (T1 and T2: 14.7%, T3 and T4: 29% and T5: 20.6%), neutral alloy and emulsifier. The formulations were processed and the popsicles were evaluated for pH, soluble solids, titratable acidity, vitamin C, acceptability index (SS/TA) and macro and micro nutrients were identified. In the sensorial analysis, the popsicles were evaluated for appearance, color, flavor, texture and purchase intent by 40 untrained tasters. The acceptance of the camu-camu popsicles was lower when the formulation was more diluted. Formulations T3, T4 and T5 showed the most wanted qualitative attributes and these preparations received top scores in the sensory analysis.
- Published
- 2019
25. Harvestmen occurrence database (Arachnida, Opiliones) of the Museu Paraense Emílio Goeldi, Brazil
- Author
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Marcos Paulo Alves de Sousa, Valeria Juliete Da Silva, Dan J S T Teixeira, Cleverson Rannieri Meira dos Santos, Lorran A R Ramos, Timóteo Monteiro da Silva, Alexandre B. Bonaldo, and Manoel B Aguiar-Neto
- Subjects
0106 biological sciences ,Arachnid ,Arthropoda ,Biodiversity & Conservation ,010607 zoology ,Biodiversity ,occurren ,Opiliones ,Phareicranaus ,occurrence ,010603 evolutionary biology ,01 natural sciences ,Arachnida ,Animalia ,lcsh:QH301-705.5 ,Amazon ,Ecology, Evolution, Behavior and Systematics ,database ,arachnology ,Ecology ,biology ,Amazon rainforest ,Forestry ,Arachnology ,South America ,biology.organism_classification ,Data Paper (Biosciences) ,Geography ,lcsh:Biology (General) ,Neogene ,Global biodiversity - Abstract
We present a dataset with information from the Opiliones collection of the Museu Paraense Emílio Goeldi, Northern Brazil. This collection currently has 6,400 specimens distributed in 13 families, 30 genera and 32 species and holotypes of four species: Imeri ajuba Coronato-Ribeiro, Pinto-da-Rocha & Rheims, 2013, Phareicranaus patauateua Pinto-da-Rocha & Bonaldo, 2011, Protimesius trocaraincola Pinto-da-Rocha, 1997 and Sickesia tremembe Pinto-da-Rocha & Carvalho, 2009. The material of the collection is exclusive from Brazil, mostly from the Amazon Region. The dataset is now available for public consultation on the Sistema de Informação sobre a Biodiversidade Brasileira (SiBBr) (https://ipt.sibbr.gov.br/goeldi/resource?r=museuparaenseemiliogoeldi-collection-aracnologiaopiliones). SiBBr is the Brazilian Biodiversity Information System, an initiative of the government and the Brazilian node of the Global Biodiversity Information Facility (GBIF), which aims to consolidate and make primary biodiversity data available on a platform (Dias et al. 2017). Harvestmen or Opiliones constitute the third largest arachnid order, with approximately 6,500 described species. Brazil is the holder of the greatest diversity in the world, with more than 1,000 described species, 95% (960 species) of which are endemic to the country. Of these, 32 species were identified and deposited in the collection of the Museu Paraense Emílio Goeldi.
- Published
- 2019
26. The potential of compounds isolated from Xylaria spp. as antifungal agents against anthracnose
- Author
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João Lúcio de Azevedo, Antonio G. Ferreira, Sérgio B Sartori, Luciana Mecatti Elias, Diana Fortkamp, Andre Rodrigues, Simone Possedente de Lira, Luiz Humberto Gomes, Marília C Ferreira, Quimi Vidaurre Montoya, Universidade de São Paulo (USP), Universidade Estadual Paulista (Unesp), and Universidade Federal de São Carlos (UFSCar)
- Subjects
0301 basic medicine ,Antifungal ,medicine.drug_class ,lcsh:QR1-502 ,Xylaria ,Microbiology ,Plant use of endophytic fungi in defense ,Mass Spectrometry ,lcsh:Microbiology ,2-Hexylidene-3-methylbutanedioic acid ,03 medical and health sciences ,chemistry.chemical_compound ,Plant pathogen ,medicine ,Colletotrichum ,Endophytes ,Paullinia ,Cultivar ,Anthracnose ,Amazon ,Captan ,Phylogeny ,Plant Diseases ,biology ,Molecular Structure ,Xylariales ,fungi ,food and beverages ,biology.organism_classification ,Fungicides, Industrial ,Fungicide ,Horticulture ,030104 developmental biology ,chemistry ,Crop disease ,Pruning ,MICRORGANISMOS ENDOFÍTICOS ,Research Paper - Abstract
Made available in DSpace on 2019-10-04T12:31:32Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-10-01. Added 1 bitstream(s) on 2021-07-15T15:22:57Z : No. of bitstreams: 1 S1517-83822018000400840.pdf: 1193433 bytes, checksum: 4021607d35f01d91b6816b9a44e1d4ca (MD5) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Anthracnose is a crop disease usually caused by fungi in the genus Colletotrichum or Gloeosporium. These are considered one of the main pathogens, causing significant economic losses, such as in peppers and guarana. The current forms of control include the use of resistant cultivars, sanitary pruning and fungicides. However, even with the use of some methods of controlling these cultures, the crops are not free of anthracnose. Additionally, excessive application of fungicides increases the resistance of pathogens to agrochemicals and cause harm to human health and the environment. In order to find natural antifungal agents against guarana anthracnose, endophytic fungi were isolated from Amazon guarana. The compounds piliformic acid and cytochalasin D were isolated by chromatographic techniques from two Xylaria spp., guided by assays with Colletotrichum gloeosporioides. The isolated compounds were identified by spectrometric techniques, as NMR and mass spectrometry. This is the first report that piliformic acid and cytochalasin D have antifungal activity against C. gloeosporioides with MIC 2.92 and 2.46 mu mol mL(-1) respectively. Captan and difenocona-zole were included as positive controls (MIC 16.63 and 0.02 mu mol mL(-1), respectively). Thus, Xylaria species presented a biotechnological potential and production of different active compounds which might be promising against anthracnose disease. (C) 2018 Sociedade Brasileira de Microbiologia. Published by Elsevier Editora Ltda. Univ Sao Paulo, Dept Ciencias Exatas, Escola Super Agr Luiz de Queiroz, Piracicaba, SP, Brazil Univ Sao Paulo, Dept Genet, Escola Super Agr Luiz de Queiroz, Piracicaba, SP, Brazil Univ Estadual Paulista, Inst Biociencias, Dept Bioquim & Microbiol, Rio Claro, SP, Brazil Univ Fed Sao Carlos, Dept Quim, Sao Carlos, SP, Brazil Univ Estadual Paulista, Inst Biociencias, Dept Bioquim & Microbiol, Rio Claro, SP, Brazil FAPESP: 2014/15760-3 FAPESP: 2013/50228-8 CNPq: 142079/2016-2 : FAPESP: 2012/02000-5 : FAPESP: 2014/05940-4
- Published
- 2018
27. Amazonian Indigenous Artists as Agents of Interface: Artworks, Networks, and Curation Strategies in the COVID-19 Crisis.
- Author
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Borea, Giuliana
- Subjects
COVID-19 pandemic ,ARTISTS ,INFORMATION networks ,COVID-19 ,ARTISTIC collaboration - Abstract
In this article, I analyse how the COVID-19 crisis crystalised and fuelled the vigorous role of Amazonian indigenous artists as, what I call, "agents of interface", enabling connectivity, translation, networking and bridging information, ontologies, claims, and aesthetics. With the pandemic's spatial restrictions and the reduction of global activity in the arts with a return to focusing on the local, I argue that it is important to look at interfaces as arenas from which to understand further reconfigurations, actions, and values in the arts. Based on the project and exhibition Ite!/Neno!/Here!: Responses to COVID-19 co-curated by the indigenous artist Rember Yahuarcani and me, and on other various initiatives, this paper explores how Amazonian indigenous artists became crucial agents of the interface in four main arenas providing first-hand, real-time information of the impact of COVID-19 at Amazonian urban and rural settings, channelling networks of aid and curation, connecting different agents and worlds, and engaging in curatorial collaborations. I argue that by acting at the interface, artists have reinforced their voices, while pushing for redefinitions of and positions in the art system and suggest that the COVID-19 crisis has introduced a new moment in the configuration of Peru's art scene. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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28. Contributions of Abiotic Nature to Riverine Populations in The Amazon, Brazil: An Analysis Based on Geoenvironmental Units.
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Cavalcante Lima, Raimundo Humberto and Motta Garcia, Maria da Glória
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ABIOTIC stress ,POWER resources ,MINERALS ,ECOSYSTEM services ,SUSTAINABILITY - Abstract
Nature is an essential public resource that provides food, clean water, energy resources, minerals and shelter for human life. To face environmental changes and the exploitation of natural resources, it is crucial to understand and manage the ecosystem services (ES) that benefit humanity and preserve the natural processes that create them. In the Amazon region, the research area chosen for this study, rural communities have a way of life and social organization recognized as traditionally linked to nature; however, they do not benefit from ES due to several factors discussed in this paper. The contributions of ecosystems to human well-being are well accepted, but the services provided by geodiversity (abiotic) are often neglected in the classification systems of ES. This study identifies the importance of the relationship between geodiversity and ES, elucidating its role in the well-being of local populations. Three geological-environmental domains were identified and subdivided into five geoenvironmental units covering the geosystem services described in "Nature's Contributions to People (NCP)". The domains contained the following groups: regulatory, material and non-material. This research concludes that the ES provided by geodiversity plays a crucial role in supporting natural resources essential for local communities and that their conservation is vital for environmental sustainability and the quality of life of riparians. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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- View/download PDF
29. Technological Transparency in the Workplace: Black Box Algorithmic Culture in the Warehousing Industry.
- Author
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MISZCZYŃSKI, MIŁOSZ and KLIMEK, JORDAN
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CULTURAL industries ,INFORMATION technology ,CORPORATE culture ,DATA warehousing ,BOXING ,WAREHOUSES - Abstract
Algorithms in information technology influence changes in contemporary organizations. They monitor business processes, support decision-making, and help to increase efficiency. The literature has described extensively the applications of algorithmic technology in new models of organizations but few studies have addressed the relationship between algorithms and organizational culture. This paper fills that niche by concentrating on black boxing to address the technological transparency in the algorithmic workplace. This paper uses the case study of the Amazon POZ 1 warehouse near Poznań, Poland. The findings show that algorithmic culture has a profound effect on how employees interact, how they see themselves at work, and how they perform their job responsibilities. As we show, algorithmic transparency influences not only employees' worklife but also the general positionality of the workforce in the wider political economy. We conclude by arguing in favor of greater algorithmic regulation. [ABSTRACT FROM AUTHOR]
- Published
- 2023
30. Substrate and temperature on seed germination of Aspidosperma vargasii A. DC. (Apocynaceae).
- Author
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Soares Miranda, Izabele Domingues, Mendes Duarte, Manoela, and Veiga de Miranda, Rodrigo Otávio
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GERMINATION ,APOCYNACEAE ,TEMPERATURE ,TEMPERATURE effect ,VERMICULITE - Abstract
Copyright of Colloquium Agrariae is the property of Asociacao Prudentina de Educacao e Cultura (APEC) 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
- 2021
- Full Text
- View/download PDF
31. Assessment of the current state of biodiversity data for butterflies and skippers in the state of Mato Grosso, Brazil (Lepidoptera, Papilionoidea and Hesperioidea)
- Author
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Luziany Queiroz-Santos, Olaf H. H. Mielke, Mirna M. Casagrande, Fernando Maia Silva Dias, and Rafael Dell’Erba
- Subjects
0106 biological sciences ,Insecta ,Riodinidae ,Fauna ,Biodiversity ,Carbotriplurida ,01 natural sciences ,Nymphalidae ,Occurrence ,Bilateria ,Pterygota ,biology ,Amazon rainforest ,Ecology ,Lycaenidae ,Cerrado ,Pantanal ,Circumscriptional names ,Lepidoptera ,Heteroneura ,Boltonocostidae ,Geography ,Circumscriptional name ,Porina ,Coelenterata ,Data Paper ,Cossina ,Arthropoda ,Hesperioidea ,Nephrozoa ,010607 zoology ,Protostomia ,Basal ,Circumscriptional names of the taxon under ,010603 evolutionary biology ,Database ,Panorpida ,Animalia ,Eumetabola ,Galacticoidea ,Amazon ,Ecology, Evolution, Behavior and Systematics ,Strashila incredibilis ,biology.organism_classification ,PapilionoideaCephalornis ,Bombycina ,Notchia ,LepidopteraAnimalia ,Papilionoidea ,Butterfly ,Ecdysozoa ,Amphiesmenoptera ,Animal Science and Zoology ,PapilionoideaAnimalia ,Ditrysia - Abstract
Lepidoptera is one of the four megadiverse insect orders, comprising butterflies and moths. In Brazil, the bulk of knowledge about the butterfly fauna is restricted to some areas in the southeast of the country, with large gaps of knowledge in other areas. The state of Mato Grosso is one of the largest states in Brazil, and holds three of the main Brazilian biomes: Amazon rain forest, Cerrado and Pantanal. However, knowledge about Mato Grosso butterflies is fragmented and restricted to a few localities, and information is scattered in various sources. The aim of this study is to assemble the biodiversity information of the butterfly fauna of the state of Mato Grosso based on historical and recent literature data and collections carried out in the southwest of the state from 2007–2009. Records without precise locality data or taxonomic information were not included. Species identification was based on literature and comparison with specimens in collections; higher and species-level taxonomy were updated based on the Neotropical Checklist of Hesperioidea and Papilionoidea and recent phylogenetic and revisionary taxonomic works. In total, 901 species were recorded in 2,820 occurrence records. This represents 148 species of Hesperiidae, 29 Papilionidae, 28 Pieridae, 77 Lycaenidae, 238 Riodinidae, and 381 Nymphalidae. Of these, 207 species records are from the type specimens of species described in the state. Based on the results and literature records for other Brazilian states and biomes, probably the figures for Mato Grosso are underestimated, particularly in the families Hesperiidae, Lycaenidae and Riodinidae, in that order. Future collecting efforts should be directed towards certain areas of the state, especially in less sampled areas and biomes, as the north of the state and Pantanal.
- Published
- 2016
32. Managing circular ecosystems in imperfect contexts – the case of extractive fishing in the Brazilian Amazon region
- Author
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Neuzaí Marreiros Barbosa, Pedro Ibrahim Hellmeister, Adriana Marotti De Mello, and Antonio Carlos Braz
- Subjects
Amazon ,Bioeconomy ,Circular economy ,Circular ecosystems ,Business ,HF5001-6182 - Abstract
Purpose – This study aims to answer the question of how to structure a circular ecosystem for extractive fishing in the Amazon region. It explores possibilities for implementing a circular ecosystem management model in an imperfect market with low technological availability, high informality and limited public assistance. Design/methodology/approach – Qualitative approach was adopted for this paper, with a case study on extractive fishing in the state of Amazonas. Data was collected through 35 interviews and direct observation of the processes of collecting, storing and transporting fish on two routes: Tapauá-Manaus and Manacapuru-Manaus. Findings – Through the data collected, it was possible to observe the importance of an orchestrating agent – such as an association or even a public authority – for the establishment and development of a circular ecosystem for extractive fishing in the region. Research limitations/implications – The paper makes theoretical contributions by presenting how a circular ecosystem management model could be implemented for an imperfect market in the Global South, as well as contributing to the literature on how the circular economy contributes to mitigate the threat to biodiversity posed by the linear economy. Practical implications – It contributes to the management practice of structuring circular ecosystems. Social implications – The role of public authorities and the collective organization of fishermen as orchestrators connecting the network of actors that develop the extractive fishing ecosystem is fundamental, guaranteeing effective social participation in solving local problems. Originality/value – The idea of circular ecosystems was applied to imperfect contexts, with high informality, weak institutions and bioeconomy, topics still little explored in the literature.
- Published
- 2024
- Full Text
- View/download PDF
33. Mineral and bromatological assessment and determination of the antioxidant capacity and bioactive compounds in native Amazon fruits
- Author
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Magda Márcia Becker, Jean-Louis Marty, Carolina Marques Mandaji, Gaëlle Catanante, and Gilvanda Silva Nunes
- Subjects
Compostos bioativos ,Frutas nativas ,Minerais ,Chemical composition ,lcsh:TX341-641 ,engineering.material ,Bioactive compounds ,Native fruits ,0404 agricultural biotechnology ,Capacidade antioxidante ,Food science ,Amazon ,Minerals ,Mineral ,Vitamin C ,Moisture ,Amazon rainforest ,Chemistry ,Pulp (paper) ,food and beverages ,Composição química ,04 agricultural and veterinary sciences ,Proximate ,Carbohydrate ,040401 food science ,Antioxidant capacity ,Amazônia ,engineering ,lcsh:Nutrition. Foods and food supply ,Food Science - Abstract
The proximate compositions, mineral contents, antioxidant capacity and bioactive compounds of 7 native Amazon fruits were chemically evaluated. The majority of the fruits showed high moisture contents (> 63.02%), and ash, total crude protein and total carbohydrate contents in the ranges of 0.22–2.07%, 0.17–2.44% and 7.17–41.71%, respectively. High levels of total lipids were found in uxi (23.25%) and monguba (18.67%). A wide range of mineral contents was detected and the highest levels were found in the samples of monguba seeds (Ca, Cu, Mg, and Zn), uxi pulp (Fe, and Mn) and pajurá pulp (Na). All the fruits showed antioxidant capacity, but the pajurá revealed the highest potential, statistically similar to that of acerola (p < 0.05). The highest vitamin C contents were found in bacuri and cupuaçu and the highest phenolic compound contents in monguba and pajurá fruits, but flavonoids were only detected in pajurá. A statistical correlation between the Na content and antioxidant capacity was also observed. Based on the results obtained, the fruits analyzed are suitable for use in the human diet, in the food and cosmetics industries as well as in pharmaceutical compositions. Resumo A composição bromatológica, o conteúdo mineral e a capacidade antioxidante de 7 frutos nativos da Amazônia foram avaliados. Os frutos mostraram, em sua maioria, alto conteúdo de umidade (> 63,02%) e teores de cinzas, proteína bruta total e carboidratos totais na faixa de 0,22-2,07%, 0,17-2,44% e 7,17-41,71%, respectivamente. Os maiores teores em lipídios foram obtidos nos frutos de uxi (23,25%) e monguba (18,67%). Uma ampla variedade de minerais foi detectada, sendo as maiores concentrações obtidas nas amostras de sementes de monguba (Ca, Cu, Mg e Zn), polpas de uxi (Fe e Mn) e pajurá (Na). Todos os frutos mostraram atividade antioxidante, em que a polpa de pajurá revelou o maior potencial, semelhante estatisticamente à acerola (p < 0,05). Maiores teores em vitamina C foram obtidos nos frutos de bacuri e cupuaçu, fenólicos totais na monguba e pajurá, enquanto flavonóides foram determinados somente nos frutos de pajurá. Uma correlação positiva entre o teor de Na e a capacidade antioxidante também foi observada. Baseado nos resultados obtidos, os frutos analisados são adequados para uso na dieta humana, nas indústrias de alimentos e cosméticos, bem como em composições farmacêuticas.
- Published
- 2018
34. POST-ACIDIFICATION AND EVALUATION OF ANTHOCYANINS STABILITY AND ANTIOXIDAN ACTIVITY IN AÇAI FERMENTED MILK AND YOGURTS (Euterpe oleracea Mart.)
- Author
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Luiz Antonio Mendonça Alves da Costa, Daniela Cavalcante dos Santos Campos, Leandro Timoni Buchidid Carmago Neves, Beatriz Oliveira De Sousa, and Adriana Flach
- Subjects
alimentos funcionais ,0301 basic medicine ,food.ingredient ,Antioxidant ,DPPH ,Produtos lácteos ,medicine.medical_treatment ,Cold storage ,Titratable acid ,Plant Science ,lcsh:Plant culture ,engineering.material ,native fruits ,03 medical and health sciences ,chemistry.chemical_compound ,0404 agricultural biotechnology ,food ,medicine ,lcsh:SB1-1110 ,Food science ,Amazon ,functional foods ,030109 nutrition & dietetics ,Food additive ,Pulp (paper) ,food and beverages ,04 agricultural and veterinary sciences ,040401 food science ,Lactic acid ,Amazônia ,chemistry ,frutos nativos ,engineering ,Fermentation ,Agronomy and Crop Science ,Dairy products ,Food Science - Abstract
This study evaluated the post-acidification, stability of anthocyanins and antioxidant activity in açai yogurts and fermented milks for 28 days of cold storage. For the determination of post-acidification and stability of the functional properties of açai yogurt (IA) and fermented milks (LFA), products stored at 4°C were evaluated on day 0 and every 7 days for pH, titratable acidity in lactic acid, instrumental color, anthocyanins and antioxidant activity by the DPPH free radical method. Acidification of both food matrixes was more evident between days 0 and 7 of evaluation. IA presented reduction in parameter L *, while chromaticity a * and b * of IA and LFA increased as the Açai pulp content increased; however, considering the evaluation period, it was found increase in L * and b * relating to anthocyanin degradation. Anthocyanins, as well as the antioxidant activity of IA and LFA, showed an increase in their values as the pulp content increased, but their concentrations reduced at the end of the storage period. IA and LFA can be considered excellent sources of antioxidants, being alternative to individuals not used to the consumption of fruits and vegetables. RESUMO Neste trabalho foi avaliada a pós-acidificação, a estabilidade das antocianinas e da atividade antioxidante em iogurtes e leites fermentados de açaí durante 28 dias de armazenamento refrigerado. Para determinação da pós-acidificação, assim como da estabilidade das propriedades funcionais dos iogurtes (IA) e leites fermentados (LFA) de açaí, os produtos armazenados a 4 ºC, foram avaliados no dia 0 e a cada 7 dias, quanto ao pH, acidez titulável em ácido lático, cor instrumental, antocianinas e atividade antioxidante pelo método do radical livre DPPH. A acidificação de ambas as matrizes alimentares foram mais evidentes entre os dias 0 e 7 de avaliação. Os IA apesentaram redução no parâmetro L*, enquanto que as cromaticidade a* e b* dos IA e LFA aumentaram seus valores, à medida que o teor de polpa de açaí foi aumentado, entretanto considerando o período de avaliação, verificou-se aumento de L* e b* relacionando-se as degradações nas antocianinas. As antocianinas, assim como a atividade antioxidante dos IA e LFA mostraram aumento em seus valores conforme os teores de polpa foram aumentados, porém reduziram suas concentrações ao fim do período de armazenamento. Os IA e LFA, podem ser considerados excelentes fontes de substâncias antioxidantes, sendo alternativa a indivíduos não habituados ao consumo de frutas e legumes.
- Published
- 2017
35. Student Attitudes and Behaviors Towards Digital Textbooks.
- Author
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Weisberg, Mitchell
- Subjects
PSYCHOLOGY of students ,STUDENT attitudes ,ELECTRONIC books ,BUSINESS schools ,IPADS - Abstract
The purpose of this article is to add to the collective body of knowledge on student behavior and attitudes relative to the adoption of digital textbooks. The article summarizes an ongoing research project that examines past, current and evolving behavior in the classroom related to digital textbooks and school. It includes students, faculty and administrative attitudes behaviors and perceptions. This research was undertaken at the Sawyer Business School of Suffolk University in Boston, Massachusetts. Student attitudes and behavior toward their use of digital textbooks (eTextbooks) in higher education was examined in an ongoing longitudinal study over two years at Sawyer Business School, Suffolk University. Students in the class were divided into six teams. Five of the teams were assigned an eTextbook device and the sixth team was given a paper textbook for use through the semester. The digital technologies examined were: Amazon Kindle, Sony eReader Touch, Apple iPad, enTourage eDGe, and CourseSmart. Student attitudes and behaviors were examined pre and post class by survey each semester, and during the semesters through quizzes, journals and classroom discussion. Differential learning was measured between the six teams. Student attitudes and behaviors are becoming more receptive to and accepting of using digital textbooks each year. There was no significant difference in learning between the eTextbook devices teams or between them and the paper textbook team. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
36. Nine genera of Eucnemidae (Coleoptera) new to Peru, with a key to Peruvian genera
- Author
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Varpu Vahtera, Ilari E. Sääksjärvi, Jyrki Muona, and Ari Linna
- Subjects
0106 biological sciences ,Polyphaga ,Neotropics ,Elateroidea ,food.ingredient ,Insecta ,Arthropoda ,Eucnemidae ,eucnemid ,white-sand forest ,Rainforest ,lowland ,Biology ,010603 evolutionary biology ,01 natural sciences ,Identification Key(s) ,taxonomy ,food ,Animalia ,rain forest ,Faunistics & Distribution ,Amazon ,lcsh:QH301-705.5 ,Ecology, Evolution, Behavior and Systematics ,Ecology ,Amazon rainforest ,South America ,15. Life on land ,biology.organism_classification ,Coleoptera ,010602 entomology ,Taxon ,Heterotaxis ,lcsh:Biology (General) ,species richness ,Taxonomy (biology) ,Species richness ,Taxonomic Paper - Abstract
Thirteen genera of Eucnemidae containing forty species were collected from the Iquitos region in Peru. Nine of the genera are new to the country: Rhagomicrus Fleutiaux, 1902, Adelorhagus Horn, 1890, Adelothyreus Chevrolat, 1867, Microrhagus Dejean, 1833, Dyscharachthis Blackburn, 1900, Heterotaxis Bonvouloir, 1871, Spinifornax Fleutiaux, 1926, Serrifornax Fleutiaux, 1926 and Maelodrus Fleutiaux, 1928. The previous eucnemid record from Peru contained eleven species in ten genera. Only one of the forty species caught, Entomophthalmus americanus Bonvouloir, was previously known and described from the country. Dyscharachthis, Maelodrus and Adelorhagus are recorded from South America for the first time. Many of the collected species seem to favor white-sand forest as their habitat. Possible reasons for this are discussed. A list of eucnemids from Peru is included, containing taxa already recorded from the country and also taxa that are likely to occur there. A key to the Peruvian genera is included.
- Published
- 2015
37. Sustentabilidade urbana: avanços e desafos na Região de Integração Baixo Amazonas, Pará, Brasil.
- Author
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Farias da SILVA, Lucianne, Ribeiro BARBOSA, Jaqueline Rebeca, Guimarães VIEIRA, Ima Célia, and Estefânia de Melo FERREIRA, Amanda
- Subjects
SUSTAINABLE urban development ,ENVIRONMENTAL quality ,FOREST degradation ,AGRICULTURE ,HUMAN Development Index - Abstract
Copyright of Desenvolvimento e Meio Ambiente is the property of Universidade Federal do Parana 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
- 2023
- Full Text
- View/download PDF
38. Conflicts over Land as a Risk for Social-Ecological Resilience: A Transnational Comparative Analysis in the Southwestern Amazon.
- Author
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Froese, Rebecca, Pinzón, Claudia, Aceitón, Loreto, Argentim, Tarik, Arteaga, Marliz, Navas-Guzmán, Juan Sebastian, Pismel, Gleiciane, Scherer, Sophia Florence, Reutter, Jannis, Schilling, Janpeter, and Schönenberg, Regine
- Abstract
People in the department of Madre de Dios/Peru, the state of Acre/Brazil, and the department of Pando/Bolivia experience similar conflicts over land, land use, and access to resources. At the same time, each conflict reveals distinct characteristics and dynamics, arising from its history, legal regulation, institutional (in-)capacities, and culturally diverse local populations. The aim of this paper is to better understand the main drivers of social-ecological conflicts over land in and around three protected areas in this transboundary region, known as MAP, and to analyze how (environmental) institutions influence these drivers. The paper is based on a literature review and expert interviews; it focuses on conflicts around (1) gold mining in Madre de Dios, (2) extensive cattle ranching in Acre, and (3) access to communal land in Pando. Using theories of conflict research, expanded by a political ecology perspective and insights from stakeholder and expert interviews, we find that the major conflict drivers are (1) land tenure and access to land and natural resources, (2) identity and lifestyle driven transformations, (3) state and market driven agendas, and (4) networked illegal and criminal activities. Through a comparative conflict analysis, we develop four recommendations to strengthen the creation of reflexive institutions that may be able to foster social-ecological resilience in the region: (1) The clarification of responsibilities between governance institutions and their financing; (2) the awareness raising for existing power structures and opening spaces for enhanced local participation; (3) the breaking of corruptive cycles while developing economically, ecologically, and socially sustainable livelihood opportunities; and (4) taking the continuous reproduction of illegal activities into account while clarifying responsibilities, raising awareness, and breaking corruptive cycles. The results of our research therefore not only contribute to a better understanding of conflicts in the MAP region and the wider scientific literature on social-ecological conflicts and governance, but it is also the first paper that identifies entry points and prerequisites for the transformation from reactive to reflexive institutions in Amazonian societies. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
39. HPLC-DAD PROFILE OF PHENOLIC COMPOUNDS, CYTOTOXICITY, ANTIOXIDANT AND ANTI-INFLAMMATORY ACTIVITIES OF THE AMAZON FRUIT Caryocar villosum
- Author
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Ellen Suzany Pereira Aranha, Marne Carvalho de Vasconcellos, Emerson Silva Lima, Valdir Florêncio da Veiga-Junior, Rodrigo Otavio Silva De Souza, K Yamaguchi, Carlos Victor Lamarão, and Patrícia Danielle Oliveira
- Subjects
0301 basic medicine ,Caryocaraceae ,Antioxidant ,medicine.drug_class ,DPPH ,medicine.medical_treatment ,engineering.material ,High-performance liquid chromatography ,Husk ,Anti-inflammatory ,lcsh:Chemistry ,cell antioxidant assay ,03 medical and health sciences ,chemistry.chemical_compound ,nitric oxide ,Botany ,Caryocar villosum ,medicine ,Food science ,Amazon ,030109 nutrition & dietetics ,ABTS ,biology ,Chemistry ,Pulp (paper) ,General Chemistry ,fruit byproducts ,biology.organism_classification ,lcsh:QD1-999 ,engineering - Abstract
Piquiá (Caryocar villosum - Caryocaraceae) is a native fruit from the Amazon region rich in bioactive substances. Fruit pulp extracts were analyzed by HPLC, together with extracts obtained from fruit pulp industry residual parts, byproducts such as husks (shells) and seeds. Extracts were prepared with two ethanolic solvent systems. Phenolic substances ellagic and gallic acids were detected with standards and quantified by HPLC. Cytotoxic, antioxidant and anti-inflammatory activities in vitro were also evaluated. Shell extracts showed free radicals scavenger capacity in ABTS (IC50: 3.93 ± 0.12 µg mL-1) and DPPH models (IC50: 7.81 ± 0.34 µg mL-1), low cytotoxicity in human fibroblasts, but high at tumor strains, and also a high anti-inflammatory potential observed by the inhibition of nitric oxide production. At low concentrations (20 µg mL-1), excellent antioxidant activities were verified in cellular assays, with percentages of 70.69 ± 2.77%, 79.89 ± 6.50% and 79.48 ± 8.6% for shell, pulp and seed extracts, respectively. With this set of results, C. villosum fruit extracts become a high potential raw material to be used in pharmaceutical and cosmetic applications.
- Published
- 2017
40. Logistics Aspects of Goods Home Delivery: The Case of Amazon Company.
- Author
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Aćimović,, Slobodan, Mijušković, Veljko, and Milošević, Nikola
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LOCAL delivery services ,BUSINESS logistics ,LOGISTICS ,BUSINESSPEOPLE ,HOME (The concept) - Abstract
Copyright of Marketing (0354-3471) is the property of SEMA - Srpsko udruzenje za Marketing i Ekonomski fakultet Beograd 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
- 2020
- Full Text
- View/download PDF
41. Representações do Antisuyu em El Primer Nueva Corónica y Buen Gobierno de Felipe Guaman Poma de Ayala
- Author
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Cristiana Bertazoni Martins
- Subjects
Incas ,lcsh:Latin America. Spanish America ,Indigenous Historical Sources ,media_common.quotation_subject ,Short paper ,lcsh:F1201-3799 ,Empire ,General Medicine ,Art ,lcsh:History (General) ,lcsh:D1-2009 ,Fontes Históricas Indígenas ,Amazônia ,Antisuyu ,Amazon ,Humanities ,Antis ,media_common ,Tahuantinsuyu - Abstract
In chronicles written during the XVI and XVII centuries the Antis (a general name used as a collective term to describe a great variety of ethnic groups living in the eastern and Amazonian corner of the empire), were portrayed as rebels, uncivilised, sometimes as barbarians and cannibals. Guaman Poma de Ayala reinforces this discourse both in his text and drawings where we can see images of the Antis as Indians living in caves and read about their practicing of anthropophagy. In this short paper I shall focus on the work of Guaman Poma de Ayala and his perception of the Antis. Nas crônicas escritas durante os séculos XVI e XVII no Peru, os Antis (um nome geral usado como termo coletivo para descrever uma grande variedade de grupos étnicos vivendo na parte Amazônica do império), foram representados como rebeldes, não civilizados, bárbaros e até mesmo canibais. Guaman Poma de Ayala reforça esse discurso ambos em seu texto e desenhos onde é possível ver imagens dos Antis vivendo em cavernas e ler sobre suas práticas de antropofagia. Neste pequeno artigo, será estudado o manuscrito de Guaman Poma de Ayala e sua percepcão dos Antis.
- Published
- 2005
42. O terror da branquitude: violência e racismo contra os indígenas da Amazônia (século XIX).
- Author
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Couto Henrique, Márcio
- Abstract
Copyright of Revista Brasileira de Historia is the property of Associacao Nacional dos Professores Universitarios de Historia 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
- 2024
- Full Text
- View/download PDF
43. Identifying Urban and Socio-Environmental Patterns of Brazilian Amazonian Cities by Remote Sensing and Machine Learning.
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dos Santos, Bruno Dias, de Pinho, Carolina Moutinho Duque, Páez, Antonio, and Amaral, Silvana
- Subjects
CITIES & towns ,REMOTE sensing ,SCIENTIFIC literature ,MACHINE learning ,SOCIOECONOMIC factors - Abstract
Identifying urban patterns in the cities in the Brazilian Amazon can help to understand the impact of human actions on the environment, to protect local cultures, and secure the cultural heritage of the region. The objective of this study is to produce a classification of intra-urban patterns in Amazonian cities. Concretely, we produce a set of Urban and Socio-Environmental Patterns (USEPs) in the cities of Santarém and Cametá in Pará, Brazilian Amazon. The contributions of this study are as follows: (1) we use a reproducible research framework based on remote sensing data and machine learning techniques; (2) we integrate spatial data from various sources into a cellular grid, separating the variables into environmental, urban morphological, and socioeconomic dimensions; (3) we generate variables specific to the Amazonian context; and (4) we validate these variables by means of a field visit to Cametá and comparison with patterns described in other works. Machine learning-based clustering is useful to identify seven urban patterns in Santarém and eight urban patterns in Cametá. The urban patterns are semantically explainable and are consistent with the existing scientific literature. The paper provides reproducible and open research that uses only open software and publicly available data sources, making the data product and code available for modification and further contributions to spatial data science analysis. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
44. Collective property rights lead to secondary forest growth in the Brazilian Amazon.
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Baragwanath, Kathryn, Bayi, Ella, and Shinde, Nilesh
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SECONDARY forests ,PROPERTY rights ,GROUP rights ,REGRESSION discontinuity design ,CLIMATE change mitigation - Abstract
Forests serve a crucial role in our fight against climate change. Secondary forests provide important potential for conservation of biodiversity and climate change mitigation. In this paper, we explore whether collective property rights in the form of indigenous territories (ITs) lead to higher rates of secondary forest growth in previously deforested areas. We exploit the timing of granting of property rights, the geographic boundaries of ITs and two different methods, regression discontinuity design and differencein-difference, to recover causal estimates. We find strong evidence that indigenous territories with secure tenure not only reduce deforestation inside their lands but also lead to higher secondary forest growth on previously deforested areas. After receiving full property rights, land inside ITs displayed higher secondary forest growth than land outside ITs, with an estimated effect of 5% using our main RDD specification, and 2.21% using our difference-in-difference research design. Furthermore, we estimate that the average age of secondary forests was 2.2 y older inside ITs with secure tenure using our main RDD specification, and 2.8 y older when using our difference-indifference research design. Together, these findings provide evidence for the role that collective property rights can play in the push to restore forest ecosystems. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
45. TRANSFORMAÇÕES URBANAS NA CIDADE DE VITÓRIA DO XINGU/PA FACE A CONSTRUÇÃO DA USINA HIDRELÉTRICA DE BELO MONTE.
- Author
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Santana Cornélio, Genilson and Brito Amaral, Márcio Douglas
- Subjects
WATERFRONTS ,LANDSCAPES - Abstract
Copyright of Geosul is the property of Geosul 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
- 2023
- Full Text
- View/download PDF
46. Argentina, 1985, una prueba más de las transformaciones de las industrias culturales.
- Author
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Arcangeletti Yacante, Carla Antonella
- Subjects
CULTURAL industries ,POLITICAL communication ,MOTION picture industry ,RECYCLING industry ,GLOBALIZATION - Abstract
Copyright of Question (1669-6581) is the property of Universidad Nacional de La Plata 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
- 2023
- Full Text
- View/download PDF
47. BR-174 highway, geotourism and socio-environmental conflicts in the northern remote regions of the Amazon.
- Author
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Veras, Ana Sibelonia Saldanha, Vidal, Diogo Guedes, Wahaj, Zujaja, Ahmed, Waqas, Barros, Nelson Azevedo, and Dinis, Maria Alzira Pimenta
- Subjects
GEOTOURISM ,ROAD construction ,COMMUNITIES ,DEFORESTATION ,RIVER channels ,ROADS ,INAUGURATION - Abstract
BR-174 in Brazil, also known as Manaus–Boa Vista, is a longitudinal highway that connects the Brazilian states of Mato Grosso, Rondônia, Amazonas and Roraima to Venezuela, being the only terrestrial connection between Roraima and the rest of Brazil. Its construction took place in 1968 and its inauguration in 1977, aiming to promote the interconnection of the State of Roraima, as a geopolitical strategy, with the rest of the country and, later, with South America. The construction of the BR-174 crossed the Waimiri Atroaris indigenous land, resulting in serious socio-environmental conflicts in the 1970s. Furthermore, recent research indicates that the deforestation process in the Amazon is associated with the opening of roads, as it favours the migratory flow, the occupation of land and logging. In this context, the arrival of migrants and, consequently, the pressing need to settle newly arrived people in search of land, favoured the damming of watercourses, the reduction of wild fauna and deforestation as a result of the construction of the road and neighbouring areas. However, and currently, BR-174 translates into a strategy of progress and communication, uniting adjacent communities, on the one hand, and, on the other, allowing the use of biophysical resources in favour of the development of geotourism. Considering this reality and from the perspective of the social and environmental transformations that have occurred, the objective of this paper is to analyse the potential of the BR-174 for the development of geotourism, as a way of mitigating its socio-environmental impacts and connecting geographically remote regions. The qualitative nature approach is based on the treatment and analysis of available bibliographic and documental sources. As the only land connection in the State of Roraima, and in addition to the negative impacts on the socio-environmental profile of the region, it can be concluded that the BR-174 highway has the potential to be an element facilitating the promotion of geotourism in the remote region of Amazon, contributing to the socio-environmental safeguard of this region. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
48. Traditional Knowledge of Stingless Bees (Hymenoptera: Apidae: Meliponini) in the Peruvian Amazon.
- Author
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Delgado, Cesar, Mejía, Kember, Rasmussen, Claus, and Romero, Rosa
- Subjects
TRADITIONAL knowledge ,APIDAE ,STINGLESS bees ,SUSTAINABILITY ,HYMENOPTERA ,COMMUNITIES ,HONEYBEES - Abstract
This paper describes the traditional knowledge on the management of stingless bee colonies and the use of honey by Indigenous and non-Indigenous communities of the department of Loreto, in the Peruvian Amazon. Semi-structured interviews and collection of voucher bees were carried out from June to August 2016 and from November to December 2017. The informants were selected through intentional non-probabilistic sampling (snowball sampling). During the study, 21 communities were visited, of which some of the community members in thirteen communities kept stingless bees. A total of 17 species of stingless bees are reported as used in the communities for either rearing or harvesting of honey from the forest with Melipona eburnea being the most common species. The way communities classify, manage, and use bees depends on how they perceive these insects, informed by knowledge processed and incorporated from other communities. In these communities, they use honey and pollen, with honey being the main product. Fourteen health conditions are treated with honey, with the most treated conditions being related to respiratory ailments, fertility, and reproduction. The study provides a basis for incorporating stingless bees into conservation and sustainable production policies. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
49. Voice-Based Screening for SARS-CoV-2 Exposure in Cardiovascular Clinics (VOICE-COVID-19-II): Protocol for a Randomized Controlled Trial.
- Author
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Oulousian, Emily, Seok Hoon Chung, Ganni, Elie, Razaghizad, Amir, Guang Zhang, Avram, Robert, and Sharma, Abhinav
- Subjects
SARS-CoV-2 ,COVID-19 pandemic ,CONTACT tracing ,VIRAL transmission ,TELEMEDICINE ,RANDOMIZED controlled trials - Abstract
Background: The COVID-19 pandemic has disrupted the health care system, limiting health care resources such as the availability of health care professionals, patient monitoring, contact tracing, and continuous surveillance. As a result of this significant burden, digital tools have become an important asset in increasing the efficiency of patient care delivery. Digital tools can help support health care institutions by tracking transmission of the virus, aiding in the screening process, and providing telemedicine support. However, digital health tools face challenges associated with barriers to accessibility, efficiency, and privacy-related ethical issues. Objective: This paper describes the study design of an open-label, noninterventional, crossover, randomized controlled trial aimed at assessing whether interactive voice response systems can screen for SARS-CoV-2 in patients as accurately as standard screening done by people. The study aims to assess the concordance and interrater reliability of symptom screening done by Amazon Alexa compared to manual screening done by research coordinators. The perceived level of comfort of patients when interacting with voice response systems and their personal experience will also be evaluated. Methods: A total of 52 patients visiting the heart failure clinic at the Royal Victoria Hospital of the McGill University Health Center, in Montreal, Quebec, will be recruited. Patients will be randomly assigned to first be screened for symptoms of SARS-CoV-2 either digitally, by Amazon Alexa, or manually, by the research coordinator. Participants will subsequently be crossed over and screened either digitally or manually. The clinical setup includes an Amazon Echo Show, a tablet, and an uninterrupted power supply mounted on a mobile cart. The primary end point will be the interrater reliability on the accuracy of randomized screening data performed by Amazon Alexa versus research coordinators. The secondary end point will be the perceived level of comfort and app engagement of patients as assessed using 5-point Likert scales and binary mode responses. Results: Data collection started in May 2021 and is expected to be completed in fall 2022. Data analysis is expected to be completed in early 2023. Conclusions: The use of voice-based assistants could improve the provision of health services and reduce the burden on health care personnel. Demonstrating a high interrater reliability between Amazon Alexa and health care coordinators may serve future digital tools to streamline the screening and delivery of care in the context of other conditions and clinical settings. The COVID-19 pandemic occurs during the first digital era using digital tools such as Amazon Alexa for disease screening, and it represents an opportunity to implement such technology in health care institutions in the long term. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
50. Educação na Amazônia: um balanço das iniciativas de produção historiográfica.
- Author
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Damasceno, Alberto, Pantoja, Suellem, and Dourado, Viviane
- Abstract
Copyright of Revista Educação: Teoria e Prática is the property of Revista Educacao: Teoria e Practica 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
- 2023
- Full Text
- View/download PDF
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