Produção e partição de biomassa na cultura do girassol submetido ao déficit hídrico

The great importance of sunflower cultivation is due to the excellent quality of the edible oil that is extracted from its seed, is still tapped in animal feed, for what if obtain elevated productivity is necessary managements based in the local characteristics. The objective of this work was to evaluate the effect of water replacement levels on the production and biomass participation of sunflower cultivars. We conducted the experiment in a greenhouse, located in the Federal Institute of Goiás, Rio Verde Campus. The variables analyzed were partition of biomass of chapter, leaves+stem and root, total production of achenes, weight of achenes full and weight of achenes voids. The experimental design was a randomized complete block design in a 5 x 3 factorial scheme with 3 replicates, were five levels of water replenishment (RH) (20, 40, 60, 80 and 100% of RWC) and three cultivars C) of Atlântica Sementes LTDA (Charrua, Aguará - 6 and Olissun - 3). There was a significant effect in relation to water replenishment (RH) and cultivars (C), no significant result was observed for the interaction HR x C. The cultivar Charrua presented higher values for biomass of the root, participation of achenes, participation of full achenes and participation of achenes achy, being more tolerant to the water deficit. The cultivar Aguará - 6 showed a larger partition of leaf + stem biomass. We found higher production of achenes filled in 100% water replenishment. The filling of achenes depends significantly on the partition of biomass from leaf + stem and strand.A grande importância da cultura do girassol deve-se principalmente à excelente qualidade do óleo que se extrai de sua semente e na sua utilização como alimentação animal, no entanto, para que se obtenha produtividades elevadas, faz-se necessário a adoção de manejos hídricos adequados em função das características edafoclimaticas locais e da planta. O objetivo do trabalho foi avaliar o efeito de níveis de reposição hídrica sobre a produção e participação de biomassa de cultivares de girassol. O experimento foi conduzido em casa de vegetação climatizada, localizado no Instituto Federal Goiano, Campus de Rio Verde. As variáveis respostas foram partição de biomassa do capítulo, das folhas+caule e da raiz, produção total de aquênios, peso de aquênios cheios e peso de aquênios chochos. O delineamento experimental foi em blocos casualizados, em esquema fatorial 5 x 3 com 3 repetições, sendo, cinco níveis de reposição do hídrica (RH) (20, 40, 60, 80 e 100% da CRA) e três cultivares (C) da Atlântica Sementes LTDA (Charrua, Aguará – 6 e Olissun – 3). Ocorreu efeito significativo em relação a reposição hídrica (RH) e cultivares (C), não foi observado resultado significativo para a interação RH x C. A cultivar Charrua apresentou maiores valores para biomassa da raiz, participação de aquênios, participação de aquênios cheios e participação de aquênios chochos, mostrando ser mais tolerante ao déficit hídrico. A cultivar Aguará – 6 apresentou maior partição de biomassa das folha+caule. A maior produção de aquênios cheios foi verificada na reposição hídrica de 100%. O enchimento de aquênios depende significativamente da partição de biomassa de folha+caule e capítulo

EDITORIAL

Editorial of volume 01, number 01, year 2012.Editorial do volume 01, número 01, ano 2012

EDITORIAL

Editorial from volume 02, number 02 year 2013.Editorial do volume 02, número 03, ano 2013

Aspects related to the importance of using predictive models in sheep production. Review

Los sistemas de producción ovina se enfrentan a numerosos desafíos, que hacen de la toma de decisiones un proceso lleno de riesgos e incertidumbres. En este sentido, la modelación es una herramienta útil, ya que permite a los tomadores de decisiones evaluar el comportamiento de las variables y sus interrelaciones, además de utilizar información previa o relacionada para predecir resultados y simular diferentes escenarios. El advenimiento de los modelos de predicción ha permitido monitorear el peso de un animal y determinar el mejor momento para su venta. Además, permite a los productores estimar los pesos de la canal y los principales cortes comercializables antes del sacrificio. Toda esta información está directamente asociada a la rentabilidad y el éxito de la actividad productiva. Por lo tanto, en vista de las diferentes aplicaciones de los modelos matemáticos en los sistemas de producción, esta revisión de la literatura examina los conceptos en los estudios de modelación y la importancia de utilizar modelos de predicción en la producción de ovinos de carne. Además, aborda la aplicación práctica de los estudios de modelación en la predicción de la ingesta de materia seca y los rasgos de la canal de ovinos de carne a través de variables correlacionadas.Sheep production systems face numerous challenges, which make decision-making a process fraught with risks and uncertainties. Modelling is a helpful tool in this respect, as it allows decision-makers to evaluate the behaviour of variables and their interrelationships, in addition to using previous or related information to predict results and simulate different scenarios. The advent of prediction models has made it possible to monitor the weight of an animal and determine the best time for its sale. Additionally, it allows producers to estimate the weights of the carcass and major marketable cuts before slaughter. All this information is directly associated with the profitability and success of the production activity. Therefore, in view of the different applications of mathematical models in production systems, this literature review examines concepts in modelling studies and the importance of using prediction models in meat sheep production. Furthermore, it addresses the practical application of modelling studies in predicting dry matter intake and carcass traits of meat sheep through correlated variables

EDITORIAL

Editorial from volume 01, number 02, year 2012.Editorial do volume 01, número 02, año 2012.Editorial do volume 01, número 02, ano 2012

COVID-19 outcomes in people living with HIV: Peering through the waves

Objective: To evaluate clinical characteristics and outcomes of COVID-19 patients infected with HIV, and to compare with a paired sample without HIV infection. Methods: This is a substudy of a Brazilian multicentric cohort that comprised two periods (2020 and 2021). Data was obtained through the retrospective review of medical records. Primary outcomes were admission to the intensive care unit, invasive mechanical ventilation, and death. Patients with HIV and controls were matched for age, sex, number of comorbidities, and hospital of origin using the technique of propensity score matching (up to 4:1). They were compared using the Chi-Square or Fisher's Exact tests for categorical variables and the Wilcoxon for numerical variables. Results: Throughout the study, 17,101 COVID-19 patients were hospitalized, and 130 (0.76%) of those were infected with HIV. The median age was 54 (IQR: 43.0;64.0) years in 2020 and 53 (IQR: 46.0;63.5) years in 2021, with a predominance of females in both periods. People Living with HIV (PLHIV) and their controls showed similar prevalence for admission to the ICU and invasive mechanical ventilation requirement in the two periods, with no significant differences. In 2020, in-hospital mortality was higher in the PLHIV compared to the controls (27.9% vs. 17.7%; p = 0.049), but there was no difference in mortality between groups in 2021 (25.0% vs. 25.1%; p > 0.999). Conclusions: Our results reiterate that PLHIV were at higher risk of COVID-19 mortality in the early stages of the pandemic, however, this finding did not sustain in 2021, when the mortality rate is similar to the control group

O PERFIL DE SENSIBILIZAÇÃO ACERCA DO DESCARTE E REUTILIZAÇÃO DE RESÍDUOS SÓLIDOS NA CIDADE UNIVERSITÁRIA, UNIVERSIDADE FEDERAL DO MARANHÃO.

An important aspect the still absent in many universities is planning of disposal, storage and reuse of solid waste. The identification ofsituations faced by academic community regarding generation of waste is essential to the elaboration of programs, projects, systems andpolicies for sustainable management of generated waste. This study aimed to understand how aware of this issue is academic communityof the University City, Federal University of Maranhão (UFMA), through a profile of the production of solid waste and its impacts on theenvironment. The methodology was based on the application of 509 questionnaires during the year 2011 in four different campuses centers,including 33 undergraduate and graduate departments from various fields, and six administrative centers. The questionnaires consisted ofquestions about recycling policies and waste sorting. According to our results, 67.97 % of respondents know the 3Rs (reduce, reuse andrecycle) and 92.32 % said they would participate in a program for waste management if the university were to do so. However, over 60 % ofrespondents do not separate their household waste. Thus, it is important to note that, although encouraged by the university administration,an effective campaign should include the individual awareness of the academic body.Identificar situações com as quais a comunidade acadêmica se defronta quanto à geração de resíduos é imprescindível para que haja uma elaboração de programas e políticas de gestão sustentável em universidades. Este trabalho visou compreender como se dá a sensibilização da comunidade acadêmica da Cidade Universitária/ UFMA, acerca da produção de resíduos sólidos e seus devidos impactos ambientais. A metodologia baseou-se na aplicação de 509 questionários, com perguntas acerca de políticas de reciclagem e coleta seletiva, abrangendo 33 cursos de graduação e pós-graduação de diversas áreas e seis instâncias administrativas. De acordo com os resultados, 67,97% dos entrevistados conhecem as políticas de reaproveitamento, reutilização e reciclagem de resíduos e 92,32% afirmou que participaria de um programa interno caso houvesse incentivo para tal. Assim, é importante ressaltar que ainda que incentivado pelas instâncias administrativas, uma campanha efetiva deve incluir a sensibilização dos integrantes da comunidade acadêmica em questão

A list of land plants of Parque Nacional do Caparaó, Brazil, highlights the presence of sampling gaps within this protected area

Brazilian protected areas are essential for plant conservation in the Atlantic Forest domain, one of the 36 global biodiversity hotspots. A major challenge for improving conservation actions is to know the plant richness, protected by these areas. Online databases offer an accessible way to build plant species lists and to provide relevant information about biodiversity. A list of land plants of “Parque Nacional do Caparaó” (PNC) was previously built using online databases and published on the website "Catálogo de Plantas das Unidades de Conservação do Brasil." Here, we provide and discuss additional information about plant species richness, endemism and conservation in the PNC that could not be included in the List. We documented 1,791 species of land plants as occurring in PNC, of which 63 are cited as threatened (CR, EN or VU) by the Brazilian National Red List, seven as data deficient (DD) and five as priorities for conservation. Fifity-one species were possible new ocurrences for ES and MG states

2 nd Brazilian Consensus on Chagas Disease, 2015

Abstract Chagas disease is a neglected chronic condition with a high burden of morbidity and mortality. It has considerable psychological, social, and economic impacts. The disease represents a significant public health issue in Brazil, with different regional patterns. This document presents the evidence that resulted in the Brazilian Consensus on Chagas Disease. The objective was to review and standardize strategies for diagnosis, treatment, prevention, and control of Chagas disease in the country, based on the available scientific evidence. The consensus is based on the articulation and strategic contribution of renowned Brazilian experts with knowledge and experience on various aspects of the disease. It is the result of a close collaboration between the Brazilian Society of Tropical Medicine and the Ministry of Health. It is hoped that this document will strengthen the development of integrated actions against Chagas disease in the country, focusing on epidemiology, management, comprehensive care (including families and communities), communication, information, education, and research