Search

Purpose: The purpose of this paper is to study the human resource management (HRM)–performance linkage by exploring alternative relationships between different HRM practices, categorised as either calculative or collaborative, and employee turnover and organisational and financial outcomes, in Uruguayan multinational companies (MNCs) and domestic companies, to better understand the implications of the Latin American context in this relationship. Design/methodology/approach: The study is performed at the firm level, using data from a representative sample of 274 firms, including both multinationals and locally owned firms in Uruguay, collected through the Cranet 2009 survey. The authors tested the hypotheses of the proposed model using structural equation modelling (SEM) and hierarchical multiple regression analysis. Findings: Empirical results show that collaborative HRM practices are significantly related to lower employee turnover rates, whereas calculative HRM practices are significantly associated with higher organisational and financial outcomes. These findings show the importance of the Latin American context in the relationships between HRM practices and firms' outcomes. Research limitations/implications: The use of survey data with single respondents might produce reliability problems. Additionally, the data used are cross-sectional, making it difficult to determine causality. Practical implications: Managers in MNCs and local firms in the context of developing economies and Latin American cultures must be aware that different types of HRM practices will influence different outputs and impacts on overall outcomes. Originality/value: The paper examines the extent to which HRM practices have a significant relationship with firm performance. In addition, it identifies the differential effects of calculative and collaborative HRM practices on performance, using data from a Latin American contextual setting rarely examined, in order to determine similarities and differences from results obtained in US and European contexts. [ABSTRACT FROM AUTHOR]

Copyright of Investigación Económica is the property of Universidad Nacional Autonoma de Mexico, Facultad de Economia 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.)

In this paper, we use a combination of bibliometric, social network and econometric approaches to increase our knowledge of how research institutions interact with the private sector in Latin America (LA). We first study recent trends in scientific output and specialization. On average, LA countries have been reducing the gap with the world leading regions. They have also tended to specialize in fields related to economic activities based on natural resources, such as Agricultural and Plant and Animal Sciences. However, collaborations with the private sector remain scarce. In this paper, we have built scientific networks composed by what we define as Research Departments (RD). These RDs belong to universities, research institutes and government agencies. We model the intensity of collaboration of a RD with industry as a function of its size, previous performance, and its position in the LA and national scientific networks. Our results show that the RDs which higher diversity of research partners in their national scientific network work more intensively with industry. Additionally, collaborations with industry are influenced by previous interactions with the private sector. [ABSTRACT FROM AUTHOR]

Purpose: This paper aims to analyze how emerging market firms upgrade their capabilities by focusing on "uncommoditizing strategies" that enable them to achieve levels of international competitiveness beyond the comparative advantages of their home countries and serve markets with premium pricing, quality and reputation of products. Design/methodology/approach: In this paper, the authors studied 18 Latin American companies across six countries. Latin America represents an ideal setting because many of these countries have traditionally developed using natural resource endowments, and their firms have tended to rely on these in their internationalization. To facilitate the analysis of each case and the comparisons across cases, the authors used the same analytical framework for the companies, identifying the sources of differentiation and cost efficiency strategies that enabled these firms to upgrade their capabilities and compete on the basis of premium pricing, quality and reputation. Findings: The analysis identified a general framework that represents an abstraction of the actions taken by these companies over time. The proposed model consists of three main elements used to pursue uncommoditizing strategies: tropicalized innovation, global efficiency and coordinated control. Originality/value: Recent research on emerging market firms has shown interest in how these firms upgrade their capabilities. This paper contributes to this stream of research by providing an overarching framework that not only bridged previous narrower studies but also explained how firms can develop uncommoditizing strategies to upgrade their capabilities. Further, this paper helps managers by providing a comprehensive yet succinct overview of the main strategies that they can use to help their firms to achieve international competitiveness. [ABSTRACT FROM AUTHOR]

Purpose: This paper aims to use Latin America as a laboratory to better understand the relationship between inward foreign direct investment (IFDI) and outward foreign direct investment (OFDI) (both in total as well as in regional flows) and also examine the moderating effect of trade openness on that relationship. Latin America is an ideal study context for this purpose because of the relative homogeneity of its countries, which reduces confounding effects and increases comparability. Design/methodology/approach: This paper uses longitudinal panel regression models with moderation effects. Secondary data were gathered on IFDI (per country and per country-sector), OFDI (total per country and region-targeted per country) and on trade openness from 11 Latin American countries. Findings: IFDI in natural resources is positively associated with OFDI in both overall total flows and regional flows. The effect of IFDI in manufacturing has a consistent negative effect on total OFDI. IFDI in services has positive effects on total OFDI. Additionally, trade openness moderates positively the relationship between total IFDI and both total OFDI and regional OFDI. As a consequence, the authors found evidence suggesting that the relation between IFDI and OFDI in Latin America is positively moderated by trade openness. Originality/value: The authors explored the nature of the impact of IFDI on the capacity of the recipient country to compete abroad as expressed by its OFDI flows. Specifically, they elucidated whether trade openness can be considered a suitable mechanism for home country firms to leverage potential spillovers provided by foreign entrants. [ABSTRACT FROM AUTHOR]

This paper examines the levels of health system efficiency and their possible determinants across Latin American and Caribbean (LAC) countries using national-level data for those countries, as well as for other emerging and developed countries. The data are analyzed using data envelopment analyses and econometric advances that yield reliable estimations of the relationship between system efficiency and its potential determinants. We find that there is substantial room for efficiency improvements in the health system of most LAC countries. For example, LAC countries could improve life expectancy at birth by about five years on average at current public spending levels if they followed best practices. Furthermore, the paper assesses what factors amenable to policy act as the main possible levers for some countries to be able to translate a given level of health financing into better performance on access to care and health outcomes. Our econometric analyses suggest that efforts to increase health system efficiency could be focused in a few key policy areas associated with broader access to health services and better outcomes. These areas include general governance aspects, in addition to improvements in specific dimensions of the quality of health system institutions, notably stronger reliance on results-based management in the production of healthcare goods and services. [ABSTRACT FROM AUTHOR]

Using panel data analysis for the period 1961–2014, this paper finds that output fluctuations in Latin America were especially synchronized with the US business cycle before the commodity price boom in the 2000s. In most recent years, China has become a more important geo-economic source of output fluctuations for the region. Furthermore, focusing on export-structure related aspects as mechanisms, evidence suggests that non-primary commodity exporters in Latin America, whose exports have mainly been destined for the US market, display an intensified output fluctuation co-movement with the US. These findings contribute to the understanding of the Latin American macroeconomic exposure to external shocks. [ABSTRACT FROM AUTHOR]

Growing increasingly in South America, Africa and Asia, breast cancer is known as the dominant type of cancer in women. Different treatments are available for breast cancer, among which surgery is the most widely used, but researchers are trying to develop new strategies. One of the most prominent surgical methods is referred to as oncoplastic surgery, that helps to remove segments of malignant breast tissue. This type of surgery aims to obtain vast surgical margins, while the remaining tissue is rearranged so that the better cosmetic outcome is obtained. This review will investigate the breast cancer and then discuss partial breast reconstruction. Before outlining the procedures, the different types of partial breast reconstruction will be discussed. Finally, advantages and disadvantages will be outlined. MEDLINE database was used to conduct the search. The main terms used were 'Conservation Breast Surgery Reconstruction' AND 'Oncoplastic Surgery', 'Partial Mastectomy Reconstruction' AND 'Conservative Breast Surgery Reconstruction', 'oncoplastic' [All Fields], 'breast' AND 'surgery' OR 'surgery' operative', 'oncoplastic' ('breast')'. The bibliographies of relevant papers were manually searched up to October 2018, but more recent voices are also included. [ABSTRACT FROM AUTHOR]

Purpose The purpose of this paper is to determine and describe the effect of oil degradation on the engine of a 20-ton class excavator operating in Latin America.Design/methodology/approach The research parameters include: a specific engine class and equipment, the John Deere PowerTech Plus 6068 Tier 3 diesel engine that powers the 20-ton class excavator; identical OSA3 oil analysis laboratory equipment in 11 target countries in Latin America was employed to analyze oil samples; and the same sampling scope and method were followed for each oil sample.Findings The research results indicated that at 500 h of use, 73.4 percent of the oil sample results indicated that soot accumulation was a significant problem. When associating the engine oil contamination with the environment risk drivers: altitude and diesel quality have the greatest impact on iron readings; bio-diesel impacts copper; and precipitation and poor diesel quality are associated with silicon levels.Practical implications Due to diverse machine operating conditions, research offers an accurate global representation. Because there is an exponential count of particles as oil use approaches 250 h, the interval of engine maintenance (oil change) for machinery operating under similar conditions should not exceed 250 h of use.Originality/value The main contribution of this paper will help machinery final users and manufacturers to implement mitigation strategies to improve engine durability in countries with similar operating conditions. [ABSTRACT FROM AUTHOR]

Objectives: To determine the severity of dental caries in South American Indigenous peoples. Methods: A systematic review was conducted regarding the severity of dental caries in South American Indigenous peoples using the following electronic databases: MEDLINE/PubMed, SCOPUS, SciELO, LILACS and grey literature up to March 2018. Literature search was conducted up to March 2018. No restrictions on language or year of publication were applied. Descriptive analysis and meta‐analysis of studies were performed to determine mean dmft/DMFT index (decayed, missing and filled teeth) and temporal trends for selected age brackets. Results: The search strategy retrieved 698 studies, of which 70 full‐text articles were assessed for eligibility and 28 were included in the qualitative analysis. Finally, 18 papers were included in the meta‐analysis. Publication year ranged from 1964 to 2018. Mean dmft for 5‐year‐old children was 5.73 (95% CI 4.67‐6.79), and mean DMFT for 12‐year‐olds was 3.14 (95% CI 1.88‐4.40). Estimated DMFT for 15‐19 years, 35‐44 years and 65‐74 years was 5.53 (95% CI 2.97‐8.09), 19.41 (95% CI 11.88‐26.93) and 28.19 (24.83‐31.55), respectively. DMFT was higher than that reported in general population surveys in Brazil, Chile, Uruguay and Venezuela for all age brackets with available data. Heterogeneity was observed in all age brackets, ranging from 79.7 to 99.7%. Conclusion: Dental caries remains a significant public health problem for South American Indigenous peoples. Prevention and treatment strategies that consider cultural specificities are needed. [ABSTRACT FROM AUTHOR]

The most important theoretical argument concerning decentralised participatory governance is that it can make a government more accountable for the needs of the governed. Key to this process are participatory spaces that act as mechanisms for dialogue between citizens and local government. However, within Cochabamba, a city in the centre of Bolivia, South America, 'at‐risk' citizens engage minimally with disaster risk issues in participatory spaces, despite high levels of civic participation. This is because 'at‐risk' populations view disasters as a private/household problem that is symptomatic of household error, rather than seeing them as a broader public problem due to wider structural inequalities. Consequently, they redistribute responsibility for disaster risk reduction towards households, which (re)produces the absolution of government authorities as guarantors of disaster risk reduction. This paper challenges the normative assumption that participatory spaces facilitate democratic deliberation of disaster risk reduction and the downward accountability of local government for disaster risk reduction. [ABSTRACT FROM AUTHOR]

This paper aims to investigate the role of various knowledge indicators, such as research and development, information and communication technologies and trade, in the economic growth and convergence performance of 17 Middle East and North Africa (MENA) countries and 17 Latin American countries (LACs) during the 1980-2014 period, by utilizing dynamic panel data techniques like the pooled mean group estimation method. Our results indicate that knowledge variables seem to play an important role in the economic growth performances of both regions and, overall, there is a significant convergence among the countries in MENA and LACs. Nevertheless, our main finding is that the impact of the knowledge indicator in Latin American countries is weaker compared to the MENA region. [ABSTRACT FROM AUTHOR]

Conditional Cash Transfer (CCT) programs, started in the late 1990s in Latin America, have become the antipoverty program of choice in many developing countries in the region and beyond. This paper reviews the literature on their long-term impacts on human capital and related outcomes observed after children have reached a later stage of their life cycle, focusing on two life-cycle transitions. The first includes children exposed to CCTs in utero or during early childhood who have reached school ages. The second includes children exposed to CCTs during school ages who have reached young adulthood. Most studies find positive long-term effects on schooling, but fewer find positive impacts on cognitive skills, learning, or socio-emotional skills. Impacts on employment and earnings are mixed, possibly because former beneficiaries were often still too young. A number of studies find estimates that are not statistically different from zero, but for which it is often not possible to be confident that this is due to an actual lack of impact rather than to the methodological challenges facing all long-term evaluations. Developing further opportunities for analyses with rigorous identification strategies for the measurement of long-term impacts should be high on the research agenda. As original beneficiaries age, this should also be increasingly possible, and indeed important before concluding whether or not CCTs lead to sustainable poverty reduction. [ABSTRACT FROM AUTHOR]

Highlights • Zika virus (ZIKV) incidence was studied in a prospective cohort of travellers. • During the 2016 outbreak in the Americas, ZIKV incidence was 17% per month of travel. • Only one of nine ZIKV cases (11%) was asymptomatic. Abstract Background The incidence rate of Zika virus (ZIKV) infection in travellers from non-endemic areas to the Americas during the ZIKV outbreak in 2016 is unknown. Methods Belgian adults who planned to travel to South America, Central America, and the Caribbean were recruited prospectively to study the incidence and characteristics of ZIKV. Demographic data and sera were collected at baseline. Participants were trained to collect capillary blood on filter paper (BFP). When ill during travel, the participants completed a questionnaire and they sampled BFP for post-hoc analysis. All symptomatic participants were screened for ZIKV using ZIKV-specific RT-PCR on serum or urine, or BFP, and antibody detection assays (ELISA). Follow-up sera of asymptomatic travellers, obtained at least 20 days post travel, were tested by ZIKV ELISA only. All positive ELISA results were subject to confirmation by virus neutralization testing (VNT). Results Forty-nine participants completed follow-up: 38 women and 11 men, with a median age of 32 years (range 19–64 years). Travel destinations were countries in South America (n = 20), Central America (n = 24), and the Caribbean (n = 5). The total travel duration was 67.8 person-months. Illness was reported by 24 participants (49.0%). ZIKV infection was confirmed in nine cases, by RT-PCR (n = 5) and by VNT (n = 4). Only one of nine ZIKV cases (11.1%) was asymptomatic. The ZIKV incidence rate was 17.0% (95% confidence interval 7.8–32.2%) per month of travel. Conclusions The ZIKV incidence rate in adult travellers from non-endemic countries to the epidemic territories during the 2016 outbreak was high. Asymptomatic ZIKV infection was rare in this population. [ABSTRACT FROM AUTHOR]

Copyright of Cadernos Argentina Brasil is the property of Editora da Universidade do Estado do Rio de Janeiro (EdUERJ) 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.)

Copyright of Equidad y Desarrollo is the property of Equidad y Desarrollo 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.)

Copyright of Cuaderno Activa is the property of Tecnologico de Antioquia, Institucion Universitari 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.)

The article offers the authors' insight on the paper "Are bird populations in tropical and subtropical forests of South America affected by climate change?," by M. Nores that was published in a 2009 issue of "Climatic Change." The authors say that the bird data underestimates the current number of birds in South American forests. They add that the methods used are unacceptable in the field of modern ornithology and the paper lacks insight on the possible climate change effects on birds in the forests.

The article offers the author's insight on comment of researchers P. C. Stouffer and colleagues on her paper on bird species' problems in South America. The author associates the flaws he has observed in the research by P. C. Stouffer and colleagues on the nonexistence of widespread decline of bird species in the protected forests in South America in his response. He concludes that the claim contains insufficient evidence to support their claim in the nonexistence of widespread bird declines.

Cocoa is a plant with origins in northwestern South America with high relevance in the global economy. Evidence indicates that cocoa is sensitive to a dry climate, under which crop production is reduced. Projections for future climate change scenarios suggest a warmer and drier climate in the Amazon basin. In this paper, we quantify the potential effects in cocoa production due to its edaphoclimatic suitability changes to the Brazilian Amazon biome and account for regional differences in planning occupation territories. We modeled the suitability of cocoa's geographical distribution using an ensemble of 10 correlative models that were run in the "biomod2" library and projected to two future climate scenarios (RCPs 4.5 and 8.5) by 2050. Combining information on climate and soil suitability and installed infrastructure in the macro-regions of the Brazilian Amazon. We defined a zoning system to indicate how cocoa production may respond to climate change according to the current and future suitability model. Our results suggest that a reduction in precipitation and an increase in temperature may promote a reduction in the suitability of cocoa production in the Brazilian Amazon biome. In addition of the areas suitable for cocoa plantation, we found a 37.05% and 73.15% decrease in the areas suitable for intensification and expansion zones under RCP 4.5 and 8.5, respectively, compared with the current scenario. We conclude that there may be a need to expand land to cocoa production in the future, or else it will be necessary to plant a cocoa variety resistant to new climatic conditions. Besides, we recommend procedures to combat illegal deforestation to prevent the most critical climate change scenarios from occurring. [ABSTRACT FROM AUTHOR]

Copyright of Espaço e Cultura is the property of Editora da Universidade do Estado do Rio de Janeiro (EdUERJ) 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.)

Copyright of Papeles de Europa is the property of Universidad Complutense de Madrid 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.)

Copyright of Revista Debates is the property of Revista Debates 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.)

Copyright of Terr@ Plural is the property of Terr@ Plural 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.)

Toads are considered poisonous animals since they have a passive mode of defence relying on cutaneous poison glands, differently from venomous animals who can inject venom in predators/aggressors or prey. Toads of Rhinella marina group are generally large and have a broad distribution in South America, inhabiting a wide range of environments. In this paper, we studied the toads Rhinella icterica from the Atlantic rainforest, and Rhinella jimi from the Brazilian Semiarid Caatinga, analysing aspects of natural history and comparing their skin morphology, the presence of macroglands, their resistance to water loss and rates of water uptake. In periods of extreme drought, R. jimi uses rock cracks as refuges, exposing only the head and regions of accumulation of poison glands. The skin of R. jimi showed higher number of poison glands with hydrophilic content than R. icterica. R. jimi also had a thicker skin, which can be related to its superior resistance to water loss. It also showed high rates of rehydration in association with a peculiar behaviour using the limbs to spread water onto highly glandular skin areas, suggesting that poison glands may also act in water balance in addition to chemical defence. [ABSTRACT FROM AUTHOR]

Objective: In this paper, we seek to update and expand the understanding of whether the patterns of competition in two‐round elections in the United States exist in other countries. Methods: Using insights from the well‐developed literature on two‐round elections in the U.S. South, we analyze an original data set covering two‐round presidential systems in Latin America. We focus on the likelihood that elections will go to a second round, and, once a second round happens, the role that first‐round electoral strength and incumbency status play in determining the ultimate outcome. Results: Unlike previous work, our statistical model accounts for unobservable factors that simultaneously affect the likelihood of a second round occurring and of the first‐round leader winning that round. Conclusions: Patterns of competition across U.S. and Latin American two‐round elections are similar, though incumbency status may be a bigger asset in the latter than in the former. [ABSTRACT FROM AUTHOR]

Initially founded in 1955 as a platform for Dutch photojournalists to increase international exposure, the World Press Photo competition has grown into the most prestigious contest of photojournalism worldwide, making it an important arena for journalism research. Using qualitative and quantitative content analyses, this study examines all photos shown in the competitions from 1960 to 2020 (N = 11,789) considering the origin of jury members (N = 686), participants (N = 132,800), placements (N = 2347) and the Human Development Index (HDI) of the countries. The topics displayed on the photos, their degree of negativity, and potential power structures in the photos are analysed over time both in terms of continental and HDI-related differences. Significant results show that Africa, Asia, and South America are more frequently depicted by the topic conflict and characterised by negative images than continents with industrialised nations (Australia/Oceania, Europe, North America). Participating European countries have a significantly higher average number of jury members, participants, and placements than participating countries from Africa, Asia, and South America, which seems to account for a dominant Eurocentric view. Implications and critical discussions are summarized in three interim conclusions at the end of this extended paper. [ABSTRACT FROM AUTHOR]

The last two decades witnessed a rapid growth of publicly accessible online language resources. This has allowed for valuable data on lesser known languages to become available. Such resources provide linguists with opportunities for advancing their research. Yet despite the proliferation of lexical and morphological databases, the ca. 456 languages spoken in South America are poorly represented, particularly the Tupían family, which is the largest on the continent. This paper therefore introduces and discusses TuLeD, a lexical database exclusively devoted to a South American language family. It provides a comprehensive list of lexical items presented in a unified transcription for all languages with cognacy assignment and relevant (cultural or linguistic) notes. One of the main goals of TuLeD is to become a full-fledged database and a benchmark for linguistic studies on South American languages in general and the Tupían family in particular. [ABSTRACT FROM AUTHOR]

Seismic phase detection, identification and first-onset picking are basic but essential routines to analyse earthquake data. As both the number of seismic stations, globally and regionally, and the number of experiments greatly increase due to ever greater availability of instrumentation, automated data processing becomes more and more essential. For example for modern seismic experiments involving 100s to even 1000s instruments, conventional human analyst-based identification and picking of seismic phases is becoming unfeasible, and the introduction of automatic algorithms mandatory. In this paper, we introduce DeepPhasePick, an automatic two-stage method that detects and picks P and S seismic phases from local earthquakes. The method is entirely based on highly optimized deep neural networks, consisting of a first stage that detects the phases using a convolutional neural network, and a second stage that uses two recurrent neural networks to pick both phases. Detection is performed on three-component seismograms. P - and S -picking is then conducted on the vertical and the two-horizontal components, respectively. Systematic hyperparameter optimization was applied to select the best model architectures and to define both the filter applied to pre-process the seismic data as well as the characteristics of the window sample used to feed the models. We trained DeepPhasePick using seismic records extracted from two sets of manually picked event waveforms originating from northern Chile (∼39 000 records for detection and ∼36 000 records for picking). In different tectonic regimes, DeepPhasePick demonstrated the ability to both detect P and S phases from local earthquakes with high accuracy, as well as predict P - and S -phase time onsets with an analyst level of precision. DeepPhasePick additionally computes onset uncertainties based on the Monte Carlo Dropout technique as an approximation of Bayesian inference. This information can then further feed an associator algorithm in an earthquake location procedure. [ABSTRACT FROM AUTHOR]

Locally refined grids for global atmospheric models are attractive since they are expected to provide an alternative to solve local phenomena without the requirement of a global high-resolution uniform grid, whose computational cost may be prohibitive. Spherical centroidal Voronoi tessellation (SCVT), as used in the atmospheric Model for Prediction Across Scales (MPAS), allows a flexible way to build and work with local refinement. In addition, the Andes Range plays a key role in the South American weather, but it is hard to capture its fine-structure dynamics in global models. This paper describes how to generate SCVT grids that are locally refined in South America and that also capture the sharp topography of the Andes Range by defining a density function based on topography and smoothing techniques. We investigate the use of the mimetic finite-volume scheme employed in the MPAS dynamical core on this grid considering the nonlinear classic and moist shallow-water equations on the sphere. We show that the local refinement, even with very smooth transitions from different resolutions, generates spurious numerical inertia–gravity waves that may even numerically destabilize the model. In the moist shallow-water model, wherein physical processes such as precipitation and cloud formation are included, our results show that the local refinement may generate spurious rain that is not observed in uniform-resolution SCVT grids. Fortunately, the spurious waves originate from small-scale grid-related numerical errors and can therefore be mitigated using fourth-order hyperdiffusion. We exploit a grid geometry-based hyperdiffusion that is able to stabilize spurious waves and has very little impact on the total energy conservation. We show that, in some cases, the clouds are better represented in a variable-resolution grid when compared to a respective uniform-resolution grid with the same number of cells, while in other cases, grid effects can affect the cloud and rain representation. [ABSTRACT FROM AUTHOR]

One recent transformation of liner shipping is the entry of leading carriers into north-south markets. This paper aims to test the commonly held proposition that global shipping lines entered north-south markets to feed more cargo on their established east-west services. This proposition arises out of: (1) predominant models of transport networks evolution which emphasize the influence of hubs, and (2) lines' strategy of commissioning larger vessels for east-west routes. In this perspective, the expansion of networks to southern economies serves specifically to bring more cargo on main routes to ensure volumes are sufficient to generate the desired economies of scale. This paper analyses the changing configurations of South American services. Results show that by 1999 leading shipping lines were offering direct services to all major trade ranges from the region, and numerous US loops were added to the already established European and Asian services. These new services involved multiple ports in the US; running in parallel with east-west services over a large part of the American coasts. The paper concludes that global shipping lines entered the South American market by setting up services typically configured to serve trades between North and South America; not to feed established main routes. [ABSTRACT FROM AUTHOR]

This paper presents a novel methodology in which an individual's optimization decisions are statistically decomposed into choices of systems, system-specific outcomes, and the overall outcome in an integrative framework. The methodology is applied to individuals' decisions on natural resource enterprises given climatic changes. This paper finds that when the Goddard Institute scenario comes to pass by the middle of this century, adoption of a crops-only enterprise will fall, so will adoption of a crops-forests enterprise. Instead, people will increase adoption of a livestock-only as well as a crops-livestock-forests enterprise. The impacts of climate change on the six enterprises are varied, which are calculated from the estimated models by altering climate variables. The crops-only enterprise will lose the value of land by 8.3 %. However, the livestock-only enterprise will gain by 8.9 %. The crops-livestock-forests enterprise also will gain largely by 7.8 %. The impacts on the other enterprises are muted, e.g., 1 % gain for the crops-livestock enterprise. The total damage under the scenario is expected to be a loss of 1.9 % of land value. Under a severer UK Met Office scenario, the damage is predicted to increase to 6.2 %. [ABSTRACT FROM AUTHOR]

The processes of bird diversification in South America have long been a focus of evolutionary biologists and this paper partly acts as an introduction to a selection of such work published in the Biological Journal of the Linnean Society and collated into a Virtual Issue (). At the beginning of the 20th century, Frank M. Chapman, curator of birds at the American Museum of Natural History, conducted a series of expeditions in Colombia and Ecuador to 'discover the geographic origins of South American bird-life'. The expeditions produced almost 30 000 specimens, obtained in a sampling scheme aimed at revealing the geographical and elevational distributions of birds. Chapman proposed a series of ideas about the evolutionary origins of the tropical Andean avifauna. Despite being nearly 100 years old, Chapman's evolutionary hypotheses on the role of the appearance of new environments and geographical barriers on speciation, have an enduring influence. With the development of molecular methods and tools for the study of the mechanisms and timing of speciation events, Chapman's hypotheses have seen a revival in the recent scientific literature. Recent work has provided support for some of Chapman's hypotheses, but has also revealed greatly complex processes of biotic differentiation in the Neotropics. What is remarkable is that with means that today seem precarious, Chapman envisioned evolutionary processes at a continental scale that remain valid, in fields that currently advance at an accelerated rhythm and soon render older ideas obsolete. [ABSTRACT FROM AUTHOR]

This paper evaluates behavioral adaptation models to climate change using South American agricultural data. This paper finds that the Ricardian model with spatial effects leads to 20 % loss of land value under the UK Hadley center (UKMO hereafter) model and 11 % loss under the milder US Goddard Institute (GISS hereafter) model by the middle of the century. The micro portfolio adaptation model (G-MAP hereafter), on the other hand, results in a much smaller damage estimate: 1 % loss of land value under the GISS model and 3.4 % loss under the UKMO model. Even with the G-MAP model, however, the land value of the crops-only system falls sharply by as much as 9.5 % under the GISS scenario. In contrast to the Ricardian model, the G-MAP model can explicitly explain the decisions to choose one of the agricultural systems as well as the conditional land value function for each system of agriculture. Under the GISS model, the choice of a crops-only farm declines by 3.3 % which is offset by an increase in the mixed system by 2.1 % and an increase in the livestock-only system by 1.2 %. Although the land value of the crops-only system falls by 9.5 %, the land value of the mixed system falls only by 3.5 % while that of the livestock-only system increases by a large percentage. This paper finds that the differences in the impact estimates between the two models result from the treatment of sunk cost. The result from the Ricardian model would deviate from that from the G-MAP model if sunk cost is significantly large. [ABSTRACT FROM AUTHOR]

The article presents information about various articles published in the May 2001 issue of the "Journal of Community Psychology." Papers in this special issue represent psychological research that has taken place on four continents: North America, South America, Europe, and the Middle East, across inner city, urban, rural, and refugee camp populations, and within stable, less stable, and newly forming nations. In all cases, however, investigators have focused on effects of violence on children. These papers range in focus from abuse and conflict within the home and family, to neighborhood and community levels of violence, and national levels of upheaval and conflict in Chile and the Palestinian territories. In addition, the commentary by author James Garbarino also provides a national and international perspective.

A state of the art of the insects collected and described from different Permian and Triassic units in South America is given, accompanied by their brief historical record (e.g., collectors, taxonomic revision) and new high-quality photos in color. Likewise, we succinctly provide data on the paleodiversity and paleoecology of the entomological assemblages from the different units. Finally, we discuss the South American paleoentomological records in relation to equivalent deposits worldwide. The thorough, updated review of fossil insect faunas in this paper will help settling the bases for future taxonomic, diversity, and ecological studies during a time that comprised the evolutionary history of insects through two key episodes of the geological record: the end-Permian mass extinction (EPME, ~252 Ma) and the Carnian Pluvial Event (CPE, ~234-232 Ma). [ABSTRACT FROM AUTHOR]

The global value chain (GVC) literature has recognized the regional linkages of global production sharing while overlooking some regions across the globe. This gap may leave unanswered the question of how South American countries' regional trade linkages have changed amid the acceleration of globalization. This study, thus, investigates the regional linkages of global production sharing of South America by relying on value-added trade measures. Additionally, we develop a pioneering value-added hubness measure to illustrate the degree of relative market dependence between countries. The findings suggest that intra-regional forward linkages in South America have increased over time, but there are signs of a re-orientation towards Asia. China's influence extended beyond Asia, and together with the United States, China became an important hub-nation for South America. Brazil appears as a potential regional hub, mainly through its domestic market and not domestic production. Therefore, the study adds to GVC literature with insights about a missing region, reveals signs of changes in the interconnections between regional blocs, and enriches the research on the hub-and-spoke trade systems. [ABSTRACT FROM AUTHOR]

After declaring the country's independence from Portugal in June 1975, the Mozambique Liberation Front focused its efforts on building a modern nation-state and implementing a development strategy to pave the way for a socialist society. The initial lack of cadres for building and managing a postcolonial national state and the new state economy led it to request the international cooperation and solidarity of the Global Left. The aim of this paper is to analyze the notions and practices of international solidarity among leftist Chilean and Argentine exiles who assumed the role of professional-technical cooperators in independent Mozambique between 1976 and 1986. The working method is based on a qualitative analysis of the information obtained from oral sources, documents of the period, and specialist literature. [ABSTRACT FROM AUTHOR]

Black soldier fly (Hermetia illucens, BSF) is a saprovorous insect native to South America. It has the characteristics of wide diet range, rapid growth, strong reproduction ability. Due to its rich pro tein content and balanced amino acid composition, BSF is considered as a source of new aquatic feed protein sources with great potential. It has been showed that as a source of feed ingredient, BSF products can partially or even completely replace fish meal or soybean meal in aquatic animal feed, and has a good application prospect in aquaculture industry. Currently, BSF is mainly added to the aquatic feed in the form of three protein raw materials: full-fat BSF larvae meal, defatted BSF larvae meal and pre-pupa meal. Due to the different nutritional characteristics, different BSF feed products and appropriate addition level should be selected for different breeding objects to obtain the best breeding results. This paper reviewed the biological characteristics, nutritional value, factors affecting its production and the latest progress in the application of different product types of BSF protein raw material in aquatic feed, and prospected the application prospect of BSF products as protein raw materials in aquatic feed, aiming to provide reference for its industrial application. [ABSTRACT FROM AUTHOR]

In recent years, quinoa (traditionally grown in South America) has been imagined as a food crop that addresses the world's most pressing problems: climate change, water scarcity, food insecurity, malnutrition, and economic inequality. Valued for being nutritionally exceptional and resistant to several agronomic stresses, quinoa has attracted the attention of consumers, researchers, and development agencies. This paper focuses on the World Quinoa Congress and other international gatherings of experts (plant scientists, quinoa farmers, social scientists, development practitioners, and entrepreneurs) who produce and share knowledge about quinoa's cultivation, production, consumption, and diversification. I examine how various actors materialize quinoa through different ways of conceptualizing seeds, property, and knowledge. In some cases, quinoa is part of a larger socioecological system, while in others, seeds are disembedded from their geographical context and studied in terms of their efficiency and yields. I explore the convergence and divergence of knowledges that accompany quinoa's globalization, shedding light on the frictions, conflicting priorities, opportunities, and questions that arise in spaces of knowledge creation and exchange. [ABSTRACT FROM AUTHOR]

Open Research has the potential to advance the scientific process by improving the transparency, rigour, scope and reach of research, but choosing to experiment with Open Research carries with it a set of ideological, legal, technical and operational considerations. Researchers, especially those in resource-constrained situations, may not be aware of the complex interrelations between these different domains of open practice, the additional resources required, or how Open Research can support traditional research practices. Using the Research on Open Educational Resources for Development (ROER4D) project as an example, this paper attempts to demonstrate the interrelation between ideological, legal, technical and operational openness; the resources that conducting Open Research requires; and the benefits of an iterative, strategic approach to one's own Open Research practice. In this paper we discuss the value of a critical approach towards Open Research to ensure better coherence between "open" ideology (embodied in strategic intention) and "open" practice (the everyday operationalisation of open principles). [This paper was presented at the "Open Education Consortium Global Conference," Krakow, Poland, April 12-14, 2016.]

In this paper, I aim to convey the history of ecopsychology's changing conceptualizations of science and technology and their role in facilitating engagement with the ecology movement. To do so, I compare ecopsychology's treatment of science and technology in two important publications: Gatherings, a non‐peer‐reviewed digital journal of the early 2000s that portrayed ecopsychology in humanistic, socially critical, and artistic terms; and Ecopsychology, a scholarly journal founded in 2009 that regarded ecopsychological questions as testable hypotheses, and distinguished itself from prior ("first generation") ecopsychology on the basis of its embrace of technological progress and the scientific method. As a part of this shift, ecopsychologists of the "second generation" championed the notion that humans are a "Technological Species," an ontological statement that naturalized the increasing sophistication of high technology as the result of inherent human drives, and established conceptual groundwork for studies that used consumer technology such as computers to mediate experiences of nature. In the final part of the paper, I critique the "Technological Species" proposition for obscuring the historical and material conditions that make the existence of consumer technology possible, such as the ecologically devastating mining of rare‐earth metals on colonized land in Central and South America. I argue that, to be socially and ecologically accountable, ecopsychology should turn toward practices that help us make sense of consumer technology's place in systems of colonialist and ecological violence, process our place within these systems as users of consumer technology, and build community less dependent on technology. [ABSTRACT FROM AUTHOR]

The growing number of gender studies encourages more refined analyzes and greater conceptualization of the underlying processes of gender gap in science. In Herpetology, previous studies have described gender disparities and a scrutiny of individual interactions may help revealing the mechanisms modelling the global pattern. In this contribution we modeled a co-authorship network, a previously unexplored methodology for gender studies in this discipline, in addition to a broad and classic bibliometric analysis of the discipline. Co-authorship networks were modelled for two South American journals, because this geo-political location is considered to present the best gender balance within general scientific communities. However, we found a pattern of male preferential connections (male homophily) that marginalizes women and maintains the gender gap, at both regional and global scales. This interpretation arises from results coming from multiple analyses, such as high homophily index in collaboration networks, lower female representation in articles than expected in a non-gender biased environment, the decrease of female co-authors when the article leader is a man, and the extreme masculinization of the editorial boards. The homophilic dynamics of the publication process reveals that academic activity is pervasive to unbalanced power relationships. Personal interactions shape the collective experience, tracing back to the Feminist Theory's axiom: "the personal is political". [ABSTRACT FROM AUTHOR]

Malaria is an endemic disease that affected 229 million people and caused 409 thousand deaths, in 2019. Disease control is based on early diagnosis and specific treatment with antimalarial drugs since no effective vaccines are commercially available to prevent the disease. Drug chemotherapy has a strong historical link to the use of traditional plant infusions and other natural products in various cultures. The research based on such knowledge has yielded two drugs in medicine: the alkaloid quinine from Cinchona species, native in the Amazon highland rain forest in South America, and artemisinin from Artemisia annua, a species from the millenary Chinese medicine. The artemisinin-based combination therapies (ACTs), proven to be highly effective against malaria parasites, and considered as "the last bullet to fight drug-resistant malaria parasites," have limited use now due to the emergence of multidrug resistance. In addition, the limited number of therapeutic options makes urgent the development of new antimalarial drugs. This review focuses on the antimalarial activities of 90 plant species obtained from a search using Pubmed database with keywords "antimalarials," "plants" and "natural products." We selected only papers published in the last 10 years (2011–2020), with a further analysis of those which were tested experimentally in malaria infected mice. Most plant species studied were from the African continent, followed by Asia and South America; their antimalarial activities were evaluated against asexual blood parasites, and only one species was evaluated for transmission blocking activity. Only a few compounds isolated from these plants were active and had their mechanisms of action delineated, thereby limiting the contribution of these medicinal plants as sources of novel antimalarial pharmacophores, which are highly necessary for the development of effective drugs. Nevertheless, the search for bioactive compounds remains as a promising strategy for the development of new antimalarials and the validation of traditional treatments against malaria. One species native in South America, Ampelozyzyphus amazonicus , and is largely used against human malaria in Brazil has a prophylactic effect, interfering with the viability of sporozoites in in vitro and in vivo experiments. [ABSTRACT FROM AUTHOR]

Agribusiness firms, with an eye toward increasing population and evolving weather patterns, are investing heavily into developing new varieties of staple crops that can provide higher yields and are robust to weather fluctuations. In this paper, we describe a multiyear effort at Dow Agrosciences (now Corteva) to manage its seed corn portfolio, which includes several hundred seeds and is valued at more than $1 billion. The effort had two mutually interacting parts: (1) developing a decision-analytic theory to estimate the production yield distributions for new seed varieties from discrete quantile judgments provided by plant biology experts and (2) developing an optimization protocol to determine Dow's annual production plan for the seed portfolio with the flexibility of backup production in South America, under production yield uncertainty. The first part, owned by the research and development (R&D) function, provides yield probability distributions as inputs to the optimization protocol of the second part, which the production function owns. The results of the optimization problem, which include information about the attractiveness of specific future varieties, are returned to R&D. Both parts incorporate contextual details specific to this industry. In this paper, we show the optimality of linear policies for both problems. Additionally, the linear policies have many attractive structural properties that continue to hold for the more complex instances of the problems. A major strength of the theory we developed is that it is implementable in a transparent fashion, providing managers with a user-friendly, real-time decision support tool. The implementation of the theory developed has led to significant monetary and managerial benefits at Dow. [ABSTRACT FROM AUTHOR]

Planetary waves disturbed the hitherto stable Arctic stratospheric polar vortex in the middle of January 2016 in such a way that unique tropospheric and stratospheric flow conditions for vertically and horizontally propagating mountain waves developed. Coexisting strong low-level westerly winds across almost all European mountain ranges plus the almost zonally aligned polar-front jet created these favorable conditions for deeply propagating gravity waves. Furthermore, the northward displacement of the polar night jet resulted in a widespread coverage of stratospheric mountain waves trailing across Northern Europe. This paper describes the particular meteorological setting by analyzing the tropospheric and stratospheric flows based on the ERA5 data. The potential of the flow for exciting internal gravity waves from nonorographic sources is evaluated across all altitudes by considering various indices to indicate flow imbalances as δ, Ro, Roζ, Ro⊥, and ΔNBE. The analyzed gravity waves are described and characterized. The main finding of this case study is the exceptionally vast extension of the mountain waves trailing to high latitudes originating from the flow across the mountainous sources that are located at about 45°N. The magnitudes of the simulated stratospheric temperature perturbations attain values larger than 10 K and are comparable to values as documented by recent case studies of large-amplitude mountain waves over South America. The zonal means of the resolved and parameterized stratospheric wave drag during the mountain wave event peak at −4.5 and −32.2 m s−1 day−1, respectively. [ABSTRACT FROM AUTHOR]

Copyright of História da Historiografia is the property of Sociedade Brasileira de Teoria e Historia da Historiografia 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.)

In order to fight the spread of the global COVID-19 pandemic, most of the world's countries have taken control measures such as lockdowns during a few weeks to a few months. These lockdowns had significant impacts on economic and personal activities in many countries. Several studies using satellite and surface observations have reported important changes in the spatial and temporal distributions of atmospheric pollutants and greenhouse gases. Global and regional chemistry-transport model studies are being performed in order to analyze the impact of these lockdowns on the distribution of atmospheric compounds. These modeling studies aim at evaluating the impact of the regional lockdowns at the global scale. In order to provide input for the global and regional model simulations, a dataset providing adjustment factors (AFs) that can easily be applied to current global and regional emission inventories has been developed. This dataset provides, for the January–August 2020 period, gridded AFs at a 0.1×0.1 latitude–longitude degree resolution on a daily or monthly basis for the transportation (road, air and ship traffic), power generation, industry and residential sectors. The quantification of AFs is based on activity data collected from different databases and previously published studies. A range of AFs are provided at each grid point for model sensitivity studies. The emission AFs developed in this study are applied to the CAMS global inventory (CAMS-GLOB-ANT_v4.2_R1.1), and the changes in emissions of the main pollutants are discussed for different regions of the world and the first 6 months of 2020. Maximum decreases in the total emissions are found in February in eastern China, with an average reduction of 20 %–30 % in NO x , NMVOCs (non-methane volatile organic compounds) and SO 2 relative to the reference emissions. In the other regions, the maximum changes occur in April, with average reductions of 20 %–30 % for NO x , NMVOCs and CO in Europe and North America and larger decreases (30 %–50 %) in South America. In India and African regions, NO x and NMVOC emissions are reduced on average by 15 %–30 %. For the other species, the maximum reductions are generally less than 15 %, except in South America, where large decreases in CO and BC (black carbon) are estimated. As discussed in the paper, reductions vary highly across regions and sectors due to the differences in the duration of the lockdowns before partial or complete recovery. The dataset providing a range of AFs (average and average ± standard deviation) is called CONFORM (COvid-19 adjustmeNt Factors fOR eMissions) (https://doi.org/10.25326/88 ; Doumbia et al., 2020). It is distributed by the Emissions of atmospheric Compounds and Compilation of Ancillary Data (ECCAD) database (https://eccad.aeris-data.fr/ , last access: 23 August 2021). [ABSTRACT FROM AUTHOR]

The challenge of research methods teaching is gaining attention among policy-makers keen to build social science research capacity and, critically, among educationalists keen to enhance the pedagogy. This paper addresses pedagogy, presenting a new conceptual-empirical typology of pedagogy for social science research methods teaching. Taking a sociocultural perspective, pedagogy is seen as encompassing both actions and underlying values. A mix of qualitative methods was used to engage more than 100 methods teachers (plus students) from diverse UK and international contexts. An expert panel method and focus groups helped elucidate pedagogical knowledge. Video-stimulated reflective dialogue added detail to that knowledge. Thematic analysis was used to make sense of teaching practice with individuals and across the dataset. A typology of research methods teaching developed iteratively across this process, proposing the core categories of "approach," "strategy," "tactics" and "tasks." In-depth case studies helped to gain nuance and test the emergent typology "in situ." The paper argues that the typology contributes a dynamic tool for developing practice. It transforms the way we think about teaching and can be applied in any social science research method teaching context, benefitting the pedagogic community by enabling greater focus in planning and reflection.