A aplicação do algoritimo BGreedy na definição de pedidos de compra e gestão de suprimento : um estudo de caso em uma distribuidora de produtos agropecuários

Monografia (graduação)—Universidade de Brasília, Faculdade de Economia, Administração e Contabilidade, Departamento de Administração, 2015.Para as empresas que trabalham no varejo, comprar os produtos da melhor maneira possível é importante para um bom resultado financeiro, o uso de um algoritmo pode ser benéfico para a definição de lista de compras quando melhora a assertividade nas escolhas de quantos e quais produtos comprar. O estudo da utilização de algoritmos para gestão dos processos de compras e sua importância para o sucesso das empresas é recente no âmbito da gestão de suprimentos. Nesse sentido, o propósito deste trabalho é aplicar o algoritmo BGreedy na definição de pedidos de compra, como uma ferramenta de apoio em uma empresa de produtos agropecuários de forma a avaliar se essa ferramenta pode auxiliar os gestores de compras. Um aplicativo foi desenvolvido utilizando o Visual Basic Application (VBA) para estabelecer os pedidos de compra. Consequentemente, o pedido de compra recomendado pelo aplicativo foi comparado ao realizadas pela equipe de compra e julgado pelo gestor de compras. Os resultados foram positivos, já que os pedidos de compras foram feitos de forma rápida seguindo os critérios dos gestores de compras, sem despender muito esforço destes e nem gastos a mais. Assim, pode-se concluir que a utilização do algoritmo BGreedy auxilia na definição de pedidos de compras, pois acelerada este processo e diminui possíveis erros humanos

Dust-Obscured Star-Formation in Intermediate Redshift Galaxy Clusters

We present Spitzer MIPS 24-micron observations of 16 0.4<z<0.8 galaxy clusters drawn from the ESO Distant Cluster Survey (EDisCS). This is the first large 24-micron survey of clusters at intermediate redshift. The depth of our imaging corresponds to a total IR luminosity of 8x10^10 Lsun, just below the luminosity of luminous infrared galaxies (LIRGs), and 6^{+1}_{-1}% of M_V < -19 cluster members show 24-micron emission at or above this level. We compare with a large sample of coeval field galaxies and find that while the fraction of cluster LIRGs lies significantly below that of the field, the IR luminosities of the field and cluster galaxies are consistent. However, the stellar masses of the EDisCS LIRGs are systematically higher than those of the field LIRGs. A comparison with optical data reveals that ~80% of cluster LIRGs are blue and the remaining 20% lie on the red sequence. Of LIRGs with optical spectra, 88^{+4}_{-5}% show [O II] emission with EW([O II])>5A, and ~75% exhibit optical signatures of dusty starbursts. On average, the fraction of cluster LIRGs increases with projected cluster-centric radius but remains systematically lower than the field fraction over the area probed (< 1.5xR200). The amount of obscured star formation declines significantly over the 2.4 Gyr interval spanned by the EDisCS sample, and the rate of decline is the same for the cluster and field populations. Our results are consistent with an exponentially declining LIRG fraction, with the decline in the field delayed by ~1 Gyr relative to the clusters.Comment: 15 pages, 9 figure

Perfil de pacientes obesos atendidos na rede de Atenção Básica à Saúde no município de Chapecó, Santa Catarina

Introduction: Obesity results from the positive energy balance that favors the accumulation of fat. It is considered a public health problem, difficult to treat because of its multifactorial causes. Objective: to describe the profile of obese patients seen in the Primary Care network in the city of Chapecó. Methodology: This is a cross-sectional study with patients over 18 years old, with a BMI greater than or equal to 30kg/m2, of both sexes. Anthropometric measurements of patients were performed and sociodemographic and food frequency questionnaires were applied, as well as questions related to anxiety and stress. The database was built using Excel for Windows software and statistical analysis was performed using Past software (version 3) using descriptive statistics (frequency) and compared using nonparametric tests (Mann-Whitney and Kruskal-Wallis). Results: In total, 50 patients participated in the study. The BMI varied significantly (p &lt;0.05) according to access to health services, consumption of fruits and fried foods and feelings of guilt. No statistically significant relationship was found (p&gt; 0.05) according to sex, education, marital status, area of residence, occupation, daily hours worked, income, means of transport, basic sanitation, number of annual consultations and frequency of salad consumption, vegetables, beans, milk and dairy products, hamburgers and sausages, cookies and snacks, sweets and soft drinks and stress. Conclusion: The results indicate a relationship between obesity and psychological factors, in addition to frequency and food choices. Multiprofessional care ensures comprehensive primary care and can be a favorable factor in controlling obesity.Introdução: A obesidade decorre do balanço energético positivo que favorece o acúmulo de gordura. É considerado um problema de saúde pública, de difícil tratamento por ser de causas multifatoriais. Objetivo: descrever o perfil de pacientes obesos atendidos na rede de Atenção Básica do município de Chapecó. Metodologia: Trata-se de uma pesquisa do tipo transversal, com pacientes maiores de 18 anos, com IMC maior ou igual a 30 kg/m2, de ambos os sexos. Foram realizadas medidas antropométricas dos pacientes e aplicado questionários sociodemográfico e de frequência alimentar, bem como, questões relacionadas à ansiedade e ao estresse. O banco de dados foi construído no Software Excel for Windows e a análise estatística foi realizada por meio do software Past (versão 3) através de estatística descritiva (frequência) e comparadas por meio de testes não paramétricos (Mann-Whitney e Kruskal-Wallis). Resultados: Ao todo, 50 pacientes participaram do estudo. O IMC variou significativamente (p&lt;0,05) segundo o acesso ao serviço de saúde, ao consumo de frutas e frituras e ao sentimento de culpa. Não foi encontrada relação estatisticamente significativa (p&gt;0,05) segundo sexo, escolaridade, estado civil, zona de residência, ocupação, horas diárias trabalhadas, renda, meio de transporte, saneamento básico, número de consultas anuais e frequências de consumo de saladas, legumes, verduras, feijão, leite e derivados, hambúrguer e embutidos, biscoitos e salgadinhos, doces e refrigerantes e estresse. Conclusão: Os resultados indicam relação da obesidade com fator psicológico, além da frequência e das escolhas alimentares. O atendimento multiprofissional assegura a integralidade da atenção básica e pode ser um fator favorável no controle da obesidade

Consistent patterns of common species across tropical tree communities

Trees structure the Earth's most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10 cm across 1,568 locations$^{1-6}$ in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth's 800 billion tropical trees with trunk diameters of at least 10 cm. Despite differing biogeographic, climatic and anthropogenic histories$^{7}$, we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world's most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees

Consistent patterns of common species across tropical tree communities

Trees structure the Earth’s most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10 cm across 1,568 locations1,2,3,4,5,6 in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth’s 800 billion tropical trees with trunk diameters of at least 10 cm. Despite differing biogeographic, climatic and anthropogenic histories7, we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world’s most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees.Publisher PDFPeer reviewe

Increased abundance of ADAM9 transcripts in the blood is associated with tissue damage [version 2; referees: 2 approved, 1 approved with reservations]

Background: Members of the ADAM (a disintegrin and metalloprotease domain) family have emerged as critical regulators of cell-cell signaling during development and homeostasis. ADAM9 is consistently overexpressed in various human cancers, and has been shown to play an important role in tumorigenesis. However, little is known about the involvement of ADAM9 during immune-mediated processes. Results: Mining of an extensive compendium of transcriptomic datasets identified important gaps in knowledge regarding the possible role of ADAM9 in immunological homeostasis and inflammation: 1) The abundance of ADAM9 transcripts in the blood was increased in patients with acute infection but, 2) changed very little after in vitro exposure to a wide range of pathogen-associated molecular patterns (PAMPs). 3) Furthermore it was found to increase significantly in subjects as a result of tissue injury or tissue remodeling, in absence of infectious processes. Conclusions: Our findings indicate that ADAM9 may constitute a valuable biomarker for the assessment of tissue damage, especially in clinical situations where other inflammatory markers are confounded by infectious processes

Increase in brain-derived neurotrophic factor expression in early crack cocaine withdrawal

Recent reports suggest that brain-derived neurotrophic factor (BDNF) could be a biomarker for relapse, drug craving and withdrawal severity. In particular, elevated BDNF levels among former cocaine users have been associated with higher rates of relapse in 90 d. However, no data are available on BDNF levels at baseline and during crack cocaine withdrawal. This study evaluated BDNF among crack cocaine users during inpatient treatment, before and after withdrawal, vs. healthy controls. Clinical correlates with changes in BDNF levels were also assessed. Serum BDNF was evaluated in 49 male crack users on the first and last days of hospitalization and in 97 healthy controls. Serum BDNF was assayed using a sandwich ELISA kit. BDNF levels were significantly lower upon admission when compared to controls, even after adjustment for age, length of inpatient treatment, number of crack rocks used in the last 30 d, years of crack use and interaction between the latter two variables. At discharge, BDNF levels between patients and controls were similar. Number of crack rocks used in the last 30 d and years of crack use were inversely correlated with the outcome. Our findings show that BDNF levels increase during early crack cocaine withdrawal, at an inverse correlation with number of crack rocks used in the last 30 d and years of crack use