Feasibility of approximating spatial and local entanglement in long-range interacting systems using the extended Hubbard model

We investigate the extended Hubbard model as an approximation to the local and spatial entanglement of a one-dimensional chain of nanostructures where the particles interact via a long range interaction represented by a `soft' Coulomb potential. In the process we design a protocol to calculate the particle-particle spatial entanglement for the Hubbard model and show that, in striking contrast with the loss of spatial degrees of freedom, the predictions are reasonably accurate. We also compare results for the local entanglement with previous results found using a contact interaction (PRA, 81 (2010) 052321) and show that while the extended Hubbard model recovers a better agreement with the entanglement of a long-range interacting system, there remain realistic parameter regions where it fails to predict the quantitative and qualitative behaviour of the entanglement in the nanostructure system.Comment: 6 pages, 5 figures and 1 table; added results with correlated hopping term; accepted by EP

Standing up for culturally competent care in Portugal: The experience of a “Health in Equality” online training program on individual and cultural diversity

Health professionals play an essential role in the protection and promotion of health rights without distinction of sex, sexual orientation, gender identity and expression, ethnicity/race, nationality and migration status, age, functional diversity, or any other individual and/or cultural positions. With the growing diversity of patient populations, health professionals must be able to identify and be responsive to individual and cultural diversity, ensuring equity in access to high-quality individually-centered care. For this, it is fundamental to promote training in cultural competence, understood as responsivity and the ability to work the valorization of multiple and intersectional identities throughout life. The paper aims to describe the experience of the implementation of the program “Health in Equality”, aimed at training the primary healthcare workforce in Portugal, which was based on Sue and Sue’s (2008) three-dimensional model of multicultural skills, which champions cultural best practices in an intersectional perspective. Based on the trainees’ and trainers’ evaluation of four completed editions developed online between March and July 2021, this study discusses ways to improve the impact of the training program and amplify the number of leaders and role models for other health care providers towards culturally competent healthcare systems and organizations.info:eu-repo/semantics/publishedVersio

Melatonin reduces the severity of experimental amoebiasis

<p>Abstract</p> <p>Background</p> <p>Melatonin has immunomodulatory effects but very little is known about its influence in protozoan infections, such as <it>Entamoeba histolytica</it>, which causes amoebiasis, a disease with significant morbidity and mortality. In this study, we evaluated the effects of exogenous melatonin interference in experimental amoebiasis and on interactions between human blood cells and <it>E. histolytica </it>trophozoites.</p> <p>Methods</p> <p>The effect of melatonin was investigated in models of experimental amoebiasis in hamsters and rats by evaluating the area of necrosis induced by <it>E. histolytica</it>. The activity of melatonin on the interactions between leukocytes and amoebae was determined by examining leukophagocytosis. For <it>in vitro </it>tests, polymorphonuclear and mononuclear human blood leucocytes were incubated with <it>E. histolytica </it>trophozoites.</p> <p>Results</p> <p>The areas of amoebic necrosis were significantly reduced in animals treated with melatonin. Melatonin treatment increased leukophagocytosis but was associated with a greater number of dead amoebae.</p> <p>Conclusions</p> <p>These results suggest that melatonin may play a beneficial role in the control of amoebic lesions, raising the possibility that this drug may be used as an adjuvant in anti-amoebic therapy.</p

Sistema de Controle da Pesca de Mato Grosso do Sul SCPESCA/MS 7 - 2000.

Neste estudo encontram-se as informações sobre a pesca profissional e esportiva coletadas e analisadas pelo SISTEMA DE CONTROLE DA PESCA DE MATO GROSSO DO SUL - SCPESCA/MS em 2000, obtidas para todo o pescado capturado na Bacia do Alto Paraguai - BAP, oficialmente vistoriado pela Polícia Militar Ambiental/MS e desembarcado no Estado. Foi registrado um total de 934t de pescado, onde 33% (306 t) correspondem à pesca profissional e 67% (628 t) à esportiva. As espécies mais capturadas foram: pintado Pseudoplatystoma corruscans (178t; 22,3%), pacu Piaractus mesopotamicus (158 t; 19,8%) e cachara Pseudoplatystoma fasciatum (140 t; 17,6%). Os rios que mais contribuíram foram Paraguai (380 t; 47,6%) e Miranda (179 t; 22,5%). Um total de 42.847 pescadores esportivos visitou o estado de Mato Grosso do Sul, concentrado sobretudo em setembro e outubro, provenientes principalmente de São Paulo (63%). Mensalmente, em mediana, os pescadores profissionais capturaram entre 59,6 e 82,5 kg/pescador.viagem e entre 7,0 e 12,0 kg/pescador.dia, pescado durante 6 a 11 dias/pescaria; os pescadores esportivos capturaram entre 13,5 e 16,0 kg/pescador.viagem e entre 2,8 e 3,8 kg/pescador.dia, pescando durante 4 a 5 dias/pescaria. Comparando-se os dados dos anos de 1994 a 2000, obteve-se um perfil da pesca, identificando-se suas principais tendências.bitstream/item/37414/1/BP38.pd

Indicadores de viabilidade financeira e econômica do sistema de produção familiar de leite de cabra no Rio Grande do Norte.

Resumo - O trabalho objetivou identificar um modelo e exploração de leite de cabra por agricultores familiares, por meio de indicadores de viabilidade da exploração no Rio Grande Norte, para subsidiar os produtores em suas decisões de gerenciar e/ou investir na atividade. A seleÁ?o do Estado foi feita por ser o maior produtor nordestino de leite de cabra. O modelo adotado de estrutura de custos e receitas e medidas de resultados foi o do Instituto de Economia Agrícola de São Paulo. Utilizaram-se, também, metodologias de análise econômico-financeira para se conhecer a taxa interna de retorno (TIR), o valor presente lÌquido (VPL) e a relação Benefício/Custo sob as óticas financeira e econômica. Os resultados do modelo construído para gerar de três a quatro salários mínimos mensais foram: área de 100 ha, investimentos totais de R$55 mil, 50 matrizes em lactação, 50 litros de leite/dia, custo de produção de um litro de leite: R$ 0,76 e de venda: R$1,03, lucratividade de 24$ 1.276,00, TIR financeira 77% e econômica de 179%. O VPL econômico foi 16% superior ao financeiro e a relação Benefício/Custo foi de 1,57, sob a ótica financeira, e 1,79 na econômica. Os indicadores mostram a viabilidade do negócio, com destaque para a viabilidade econômica, que se traduz na contribução dos caprinocultores para com a sociedade, uma vez que geram um VPL de R$95,4 mil e apropriam-se de apenas R$ 82,3 mil. Abstract - This paper analyses through viability indicator a production of goat milk model used by familiar farmers in Rio Grande do Norte and can be used to subsidize the decision making about management and/or investment on activity. The used model of costs, revenues and results measure was the methodology utilized by Instituto de Economia AgrÌcola of S?o Paulo. Also, were utilized methodologies of analyses economic and financial to know the net present value, internal tax of return and the benefit/cost relation. The model was constructed to generate an average income of three to four minimum wages by month and the results were: area of 100 hectares, total investment of R$55,000.00, fifty does in lactation, fifty liters of milk by day, production cost of R$ 0.76 by liter of milk, selling price of R$1.03, profitability of 24$ 1,276.00, financial internal tax of return of 77% and economic internal tax of return of 179%. The economic net present value was 16% higher than the financial and the benefit/cost relation was 1.57 under the financial vision and 1.79 under the economic vision. The indicators show a viability of the business, emphasizing the economic viability where the producers of goat milk contribute to the society since that they produce a net present value of R$95,400.00 and only take possession of R$ 82,300.00

Diversidade genética em populações naturais de infalível.

Suplemento. Edição dos Trabalhos do 49 Congresso Brasileiro de Olericultura, Águas de Lindóia, ago. 2009

Perfil agroeconômico desejável para o sistema de exploração de ovinos e caprinos praticado por agricultores familiares do semi-árido cearense.

Resumo: Este trabalho objetivou identificar o perfil desejável de exploração de ovinos e/ou caprinos praticada por agricultores familiares por meio de indicadores de viabilidade financeira e econômica da exploração, no Estado do Cear·, para subsidiar os produtores em suas decisões de gerenciar e/ou investir na atividade. A seleção do Estado foi feita por ser um dos maiores produtores regionais de ovinos e caprinos. O modelo de estrutura de custos, receitas e medidas de resultados adotado foi o do Instituto de Economia Agrícola de São Paulo. Utilizaram-se, também, metodologias de análise econômico-financeira para se conhecer a taxa interna de retorno, o valor presente líquido e a relação B/C sob as óticas financeira e econômica. Os principais resultados obtidos com o modelo, construído para viabilizar a gearão de três a quatro salários mínimos por mês, foram: ·área de 193 ha, investimentos totais de R$80,4 mil, 100 matrizes, custo de produção de um quilo de carne R$ 1,73 e de venda R$2,20, lucratividade de 18,5$ 942,07, TIR financeira 23,7% e econômica de 35,1%. O VPL econômico foi 39% superior ao financeiro e a relação B/C foi de 1,27, sob a Ótica financeira, e 1,45 na econômica. Os indicadores mostram a viabilidade do negócio com destaque para a viabilidade econômica, que se traduz na contribuição dos caprinocultores para com a sociedade, uma vez que geram um VPL de R$49,7 mil e se apropriam de apenas R$ 35,7 mil. Abstract: This paper analyses through viability indicator a production system of sheep and/or goats model used by familiar farmers in Rio Grande do Norte and can be used to subsidize the decision-making about management and/or investment on activity. The used model of costs, revenues and results measure was the methodology utilized by Instituto de Economia AgrÌcola of S?o Paulo. Also, were utilized methodologies of analyses economic and financial to know the net present value, internal tax of return and the benefit/cost relation. The model was constructed to generate an average income of three to four minimum wages by month and the results were: area of 193 hectares, total investment of R$80,400.00, one hundred does, production cost of R$ 1.73 by kilogram of meat, selling price of R$2.20, profitability of 18.5$ 942.07, financial internal tax of return of 23.7% and economic internal tax of return of 35.1%. The economic net present value was 39% higher than the financial and the benefit/cost relation was 1.27 under the financial vision and 1.45 under the economic vision. The indicators show a viability of the business, emphasizing the economic viability where the producers of sheep and goats contribute to the society since that they produce a net present value of R$49,700.00 and only take possession of R$ 35,700.0