northern rio grande
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Biotemas ◽  
2021 ◽  
Vol 34 (3) ◽  
pp. 1-6
Author(s):  
Leandro Ferrari ◽  
Luiz Ubiratan Hepp

Microplastics (MP) have several negative effects on biodiversity, from the ecosystem to individual levels, and can be easily consumed by small invertebrates and fish. The increased production of plastic and absence of efficient management systems for these residues facilitate their presence in aquatic environments. In this study, we evaluated the presence of MP in the stomach contents of four species of Characidae in rural streams in the upper portion of the Uruguay River watershed (northern Rio Grande do Sul). Among the total of collected organisms (n=121), the presence of MP was observed in 72% of the analyzed stomach contents. Bryconamericus iheringii had the highest occurrence of MP (85.7%), followed by Astyanax lacustris (69.4%), Astyanax henseli (69.1%) and Oligosarchus breviostris (66.7%). Our results demonstrate the high occurrence of MP in freshwater aquatic environments, especially rural streams. The results observed in this study confirm the importance of conservation of streams, from the maintenance of riparian vegetation as a way to reduce the input of MP in these ecosystems.


Author(s):  
Julcemar Bruno Zilli ◽  
Felipe Lettrari

Agribusiness is constantly growing every year, all due to the increase in the world population, which makes the demand for food ever greater. Agriculture in Brazil is seen today with the greatest potential for expansion and growth compared to other countries, thus the market and the agricultural industries are expanding. The objective of this work is to help a cereal company in the north of the state of the Rio Grande do Sul through a field survey in verifying the customers’ perception, and exploring the predominant factors in choosing the delivery of grain production. The purpose of the literature review was to clarify aspects regarding agribusiness and the area in which the research was carried out. Information collected in the literature review provided support for the construction of a questionnaire used in the data collection. Results showed explanation of the diversity of each region in which the company operated and with that, it was noted the different profiles of the producers, and consequently the competition, since each one had its peculiarities, and each client, regardless of region, had distinct needs that needed to be seen and met by the company in general. The company is in full growth, and has a very broad view of the market, that is, it is diversifying its areas of operation in the agribusiness branch in search of competitiveness, valuing customers and partners, always bearing in mind its principles and values, being this is a differential valued by its customers.


2020 ◽  
Vol 19 ◽  
pp. 12
Author(s):  
JÉSSICA ARGENTA ◽  
JEFFERSON GONÇALVES ACUNHA ◽  
BIANCA OLIVEIRA MACHADO ◽  
ARIEL RIZZARDO ◽  
NORYAM BERVIAN BISPO

Maize landraces are important genetic resources for maize breeding. Many of these landrace varieties have not yet been properly studied in order to be distinguished from the others.  In this study, multivariate statistical methods were used, beyond the analysis of variance, for estimating genetic dissimilarity among 27 maize landrace accessions. Principal component analysis and clustering analysis were performed using 16 evaluated quantitative characters. The ANOVA results reported the existence of significant differences among the tested accessions for 14 evaluated characters. Two principal components almost explained 49% of found experimental variance. Four different clusters were formed by the used clustering analysis, whose results were plotted into a dendrogram. The graphical integration of this dendrogram with the PCA allowed to conclude that the variation found may be due to the genotypic distinctions existing among the four groups of accesses determined in this study.


2020 ◽  
Vol 10 (1) ◽  
pp. 49
Author(s):  
Marisa Mosfiak ◽  
Fabíola Stolf Brzozowski ◽  
Luiz Carlos Cichota

Os benzodiazepínicos (BZD) são fármacos recomendados para o tratamento de transtornos de ansiedade e insônia, por um período curto de tempo. São bastante consumidos, especialmente no Brasil, entretanto podem levar a intoxicações e efeitos adversos significativos, além de dependência quando consumidos a longo prazo. Dessa forma, o objetivo deste trabalho foi traçar o perfil dos usuários de benzodiazepínicos em uma Unidade Básica de Saúde (UBS) de um município de pequeno porte, da região norte do Rio Grande do Sul, em 2019. Trata-se de estudo descritivo, utilizando como base questionário anônimo com 62 indivíduos em uso de BZD e análise de suas prescrições. Destaca-se a maior quantidade de mulheres, de pessoas baixa escolaridade e idade entre 41 e 70 anos, dentre os entrevistados. O clonazepam foi o fármaco mais prescrito. A maior parte dos entrevistados fazia uso desse tipo de substância há mais de 5 anos. Essa característica é preocupante e indica que os BZD estão sendo utilizados de maneira indiscriminada no município, assim como ocorre em outras cidades do país. Os profissionais de saúde precisam estar atentos para o uso apropriado de medicamentos, evitando, dessa forma, iatrogenias decorrentes desse uso. ANALYSIS OF BENZODIAZEPINE CONSUMPTION IN A CITY OF NORTHERN RIO GRANDE DO SUL, BRAZIL Benzodiazepines (BZD) are drugs used as short-term therapies for the treatment of anxiety and insomnia. BZD are highly consumed, especially in Brazil, however, its longterm consumption can lead to addiction. Thus, this paper aims to describe the profile of BZD users in a Health Center (HC) in a small city of Northern Rio Grande do Sul, Brazil, in 2019. A descriptive analysis was designed based on an anonymous questionnaire with 62 BZD users, in addition to analysis of their prescriptions. We highlight that the majority of subjects are women, people with poor schooling and age between 41 and 70 years old. Clonazepam was the most prescribed BZD. The majority of the respondents was takingBZD for more than 5 years. This indicates that BZD are being used indiscriminately in the studied city, as is the case in many other Brazilian cities. Health professionals need to be attentive to inappropriate use of these drugs, avoiding their iatrogenic effects.


2020 ◽  
Vol 24 (03) ◽  
pp. 704-713
Author(s):  
Juliana Benck Pasa ◽  
◽  
Carla Grasiele Zanin Hegel ◽  
Noeli Zanella ◽  
◽  
...  

2020 ◽  
Vol 6 (25) ◽  
pp. eaba5694
Author(s):  
Scott Ortman ◽  
José Lobo

A defining feature of the contemporary world is economic growth, and the most frequently cited cause is technological change, especially with respect to energy capture and information processing. This framing masks the potential for economic growth in nonindustrial societies, but there is growing evidence for episodes where the material conditions of life did improve in the preindustrial past. Here, we explore a potential mechanism behind these improvements. We use settlement scaling theory to distinguish agglomeration-driven from technology-driven growth, and then we apply this framework to archaeological evidence from the Pre-Hispanic Northern Rio Grande Pueblos of New Mexico, USA. Results suggest that agglomeration-driven or “Smithian” growth was the dominant factor behind improvements in the material conditions of life over time in this society. We also summarize evidence that this growth took place in the context of a stable regional population, declining levels of inequality, and increasingly inclusive social institutions.


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