The Noncommutative Anandan's Quantum Phase

In this work we study the noncommutative nonrelativistic quantum dynamics of a neutral particle, that possesses permanent magnetic and electric dipole momenta, in the presence of an electric and magnetic fields. We use the Foldy-Wouthuysen transformation of the Dirac spinor with a non-minimal coupling to obtain the nonrelativistic limit. In this limit, we will study the noncommutative quantum dynamics and obtain the noncommutative Anandan's geometric phase. We analyze the situation where magnetic dipole moment of the particle is zero and we obtain the noncommutative version of the He-McKellar-Wilkens effect. We demonstrate that this phase in the noncommutative case is a geometric dispersive phase. We also investigate this geometric phase considering the noncommutativity in the phase space and the Anandan's phase is obtained.Comment: 15 pages, revtex4, version to appear in Physical Review

Novel polymeric products derived from biodiesel.

bitstream/item/171317/1/CLV17031.pd

Hydrophobic modification of cashew gum with alkenyl succinic anhydride.

Cashew gum (CG) shows promise of being useful as an agro-based raw material for the production of eco-friendly and biodegradable polymers. In this work, we modified this water-soluble polymer with alkenyl succinic anhydride in order to attach a hydrophobic group to it. The modification used two reagents: octenyl succinic anhydride and tetrapropenyl succinic anhydride. Reactions were conducted at 120 °C using dimethyl sulfoxide as a solvent, with conversions better than 88%. Samples with degrees of substitution (DS) between 0.02 and 0.20 were made. The resulting polymers were characterized using 1H NMR, 13C NMR, FTIR, TGA, and GPC. The addition of the hydrophobe decreased the affinity of cashew gum for water absorption. Hydrophobically modified polysaccharides are often used as polymeric emulsifiers, thickeners, and compatibilizers; we anticipate that these new hydrophobically modified CGs may be used for the same applications

Análise da intensidade de volume diferencialmente expressa de proteínas do plasma seminal de caprinos da raça Moxotó nos períodos seco e chuvoso do semiárido Nordestino.

O objetivo desse trabalho foi identificar proteínas com intensidade de porcentagem de volume (%Vol) diferencialmente expressas no plasma seminal de caprinos da raça Moxotó nos períodos seco e chuvoso, com identificação do ponto isoelétrico e massa molecular, através da técnica de eletroforese bidimensional

Avaliação do sêmen fresco e pós-congelado de ovinos da raça Morada Nova na região semiárida do Nordeste.

Resumo: A criopreservação de sêmen permite o armazenamento de material genético por tempo indeterminado, transmitindo características desejáveis. Após o processo de congelação/descongelação ocorre uma redução da taxa de fertilidade relacionada, principalmente, aos danos causados às estruturas e propriedades bioquímicas da membrana dos espermatozóides, podendo comprometer os processos de capacitação espermática e a reação acrossomal. Em relação à espécie ovina e mais precisamente a raça Morada Nova pouco se encontra na literatura trabalhos relacionados aos efeitos do congelamento no sêmen desses animais. Foram utilizados quatro animais onde se coletou o sêmen semanalmente no período mais seco do ano (outubro e novembro/2008) com o objetivo de relacionar as avaliações do sêmen fresco e pós-congelamento de ovinos da raça Morada Nova durante a época mais seca do ano na região semi-árida do Nordeste brasileiro

Characteristics and pathways of long-stay patients in high and medium secure settings in England; a secondary publication from a large mixed-methods study

Background: Many patients experience extended stays within forensic care, but the characteristics of long-stay patients are poorly understood. Aims: To describe the characteristics of long-stay patients in high and medium secure settings in England. Method: Detailed file reviews provided clinical, offending and risk data for a large representative sample of 401 forensic patients from 2 of the 3 high secure settings and from 23 of the 57 medium secure settings in England on 1 April 2013. The threshold for long-stay status was defined as 5 years in medium secure care or 10 years in high secure care, or 15 years in a combination of high and medium secure settings. Results: 22% of patients in high security and 18% in medium security met the definition for “long-stay,” with 20% staying longer than 20 years. Of the long-stay sample, 58% were violent offenders (22% both sexual and violent), 27% had been convicted for violent or sexual offences whilst in an institutional setting, and 26% had committed a serious assault on staff in the last 5 years. The most prevalent diagnosis was schizophrenia (60%) followed by personality disorder (47%, predominantly antisocial and borderline types); 16% were categorised as having an intellectual disability. Overall, 7% of the long-stay sample had never been convicted of any offence, and 16.5% had no index offence prompting admission. Although some significant differences were found between the high and medium secure samples, there were more similarities than contrasts between these two levels of security. The treatment pathways of these long-stay patients involved multiple moves between settings. An unsuccessful referral to a setting of lower security was recorded over the last 5 years for 33% of the sample. Conclusions: Long-stay patients accounted for one fifth of the forensic inpatient population in England in this representative sample. A significant proportion of this group remain unsettled. High levels of personality pathology and the risk of assaults on staff and others within the care setting are likely to impact on treatment and management. Further research into the treatment pathways of longer stay patients is warranted to understand the complex trajectories of this group

Intake, digestibility and nitrogen balance in sheep fed diets containing detoxified castor cake.

Abstract: The effect of substituting soybean meal (SM) with four levels (0, 33, 67 and 100%) of detoxified castor cake (DCC) on intake, nutrient digestibility and nitrogen balance was evaluated in uncastrated, male, crossbred sheep in a randomised complete block design with four treatments and five replications. There was a decreasing linear effect from the levels of substitution on dry matter (DM), organic matter (OM) and crude protein (CP) intake, total carbohydrates (TC), non-fibrous carbohydrates (NFC) and total digestible nutrients (TDN), and on DM, OM and TC digestibility, for reductions of 2.04, 1.70, 0.35, 1.56, 1.89 and 1.67 g dia-1 and 0.34, 0.53 and 0.51 g kg-1 DM respectively, for each 1% SM substituted with DCC. DMI and NDFap expressed, in %BW and g kg-0.75, showed a quadratic response, with a maximum value of 3.85 and 1.73%BW, and 95.15 and 42.47 g kg-0.75, for 25.00, 65.00, 20.75 and 61.50% SM substituted with DCC respectively. There was a linear increase in the intake of acid detergent fibre and in ether extract digestibility. The nitrogen balance was not affected by the substitution of SM with DCC. Substituting soybean meal with castor cake detoxified by autoclaving in lamb diets alters nutrient intake and digestibility without affecting the nitrogen balance. [Consumo, digestibilidade e balanço nitrogenado em ovinos alimentados com rações contendo torta de mamona destoxificada]. Resumo: Avaliou-se a influência de quatro níveis de substituição (0; 33; 67 e 100%) do farelo de soja (FS) pela torta de mamona destoxificada (TMD) em rações sobre o consumo, digestibilidade dos nutrientes e balanço de nitrogênio em ovinos mestiços, machos, não castrados em delineamento em blocos completos ao acaso com quatro tratamentos e cinco repetições. Observou-se efeito linear decrescente dos níveis de substituição do FS pela TMD sobre o consumo de matéria seca (MS), matéria orgânica (MO), proteína bruta (PB), carboidratos totais (CT), carboidratos não fibrosos (CNF), nutrientes digestíveis totais (NDT), digestibilidade da MS, MO e CT com reduções respectivas de 2,04; 1,70; 0,35; 1,56; 1,89 e 1,67 g dia-1 e 0,34; 0,53 e 0,51 g kg-1 de MS, para cada 1% de substituição do FS pela TMD. O CMS e FDNcp expressos em %PC e g kg-0,75 apresentaram resposta quadrática com valor máximo de 3,85 e 1,73%PC e 95,15 e 42,47 g kg-0,75 com 25,00; 65,00; 20,75 e 61,50% de substituição do FS pela TMD, respectivamente. Houve aumento linear no consumo de fibra em detergente ácido e digestibilidade do extrato etéreo. O balanço de nitrogênio não foi influenciado pela substituição do FS pela TMD. A substituição do farelo de soja pela torta de mamona destoxificada por autoclavagem na ração de cordeiros altera o consumo e digestibilidade dos nutrientes sem influenciar o balanço de nitrogênio