Criação de suínos da raça piau em propriedades familiares agroecológicos

Diante do atual modelo hegemônico de produção da suinocultura, a criação animal na perspectiva agroecológica se apresenta como alternativa para agricultores/as familiares que buscam soberania e segurança alimentar. A utilização da raça Piau se mostrou interessante numa experiência agroecológica, devido a sua alta rusticidade, pois trata-se de uma raça brasileira bem adaptada à s condições climáticas tropicais. Existe na Universidade Federal de Viçosa um projeto para preservação da raça, pois esta se encontra ameaçada, e atendendo a uma demanda de projeto pedagógico do curso de Licenciatura em Educação do Campo, surgiu a oportunidade de construção de um projeto objetivando a produção de suíno agroecológico. O presente trabalho foi construído com metodologia participativa entre o Grupo Animais para Agroecologia (UFV) e dois agricultores com vivência agroecológica com o objetivo de disseminar a raça na Zona da Mata Mineira e favorecer a soberania e segurança alimentar dessas famílias.Eje B1 Sistemas de producción de base agroecológica (Relatos de experiencias)Facultad de Ciencias Agrarias y Forestale

Criação de suínos da raça piau em propriedades familiares agroecológicos

Diante do atual modelo hegemônico de produção da suinocultura, a criação animal na perspectiva agroecológica se apresenta como alternativa para agricultores/as familiares que buscam soberania e segurança alimentar. A utilização da raça Piau se mostrou interessante numa experiência agroecológica, devido a sua alta rusticidade, pois trata-se de uma raça brasileira bem adaptada à s condições climáticas tropicais. Existe na Universidade Federal de Viçosa um projeto para preservação da raça, pois esta se encontra ameaçada, e atendendo a uma demanda de projeto pedagógico do curso de Licenciatura em Educação do Campo, surgiu a oportunidade de construção de um projeto objetivando a produção de suíno agroecológico. O presente trabalho foi construído com metodologia participativa entre o Grupo Animais para Agroecologia (UFV) e dois agricultores com vivência agroecológica com o objetivo de disseminar a raça na Zona da Mata Mineira e favorecer a soberania e segurança alimentar dessas famílias.Eje B1 Sistemas de producción de base agroecológica (Relatos de experiencias)Facultad de Ciencias Agrarias y Forestale

Criação de suínos da raça piau em propriedades familiares agroecológicos

Diante do atual modelo hegemônico de produção da suinocultura, a criação animal na perspectiva agroecológica se apresenta como alternativa para agricultores/as familiares que buscam soberania e segurança alimentar. A utilização da raça Piau se mostrou interessante numa experiência agroecológica, devido a sua alta rusticidade, pois trata-se de uma raça brasileira bem adaptada à s condições climáticas tropicais. Existe na Universidade Federal de Viçosa um projeto para preservação da raça, pois esta se encontra ameaçada, e atendendo a uma demanda de projeto pedagógico do curso de Licenciatura em Educação do Campo, surgiu a oportunidade de construção de um projeto objetivando a produção de suíno agroecológico. O presente trabalho foi construído com metodologia participativa entre o Grupo Animais para Agroecologia (UFV) e dois agricultores com vivência agroecológica com o objetivo de disseminar a raça na Zona da Mata Mineira e favorecer a soberania e segurança alimentar dessas famílias.Eje B1 Sistemas de producción de base agroecológica (Relatos de experiencias)Facultad de Ciencias Agrarias y Forestale

Synthesis and antimicrobial activity of amphiphilic carbohydrate derivatives

N-monoalkylated diamines were synthesised and treated with D-ribonolactone or D-gluconolactone. The resulting aldonamides were evaluated for their antimicrobial activity against S. aureus, E. coli, M. tuberculosis and C. albicans. Two hydrazides were also prepared from ribonohydrazide and their biological activity was compared to their amide analogues. All the ribono-derivatives displayed moderated antitubercular activity, and some of them were also active against S. aureus

Comparative analysis of two complete Corynebacterium ulcerans genomes and detection of candidate virulence factors

Trost E, Al-Dilaimi A, Papavasiliou P, et al. Comparative analysis of two complete Corynebacterium ulcerans genomes and detection of candidate virulence factors. BMC Genomics. 2011;12(1): 383.ABSTRACT: Corynebacterium ulcerans has been detected as a commensal in domestic and wild animals that may serve as reservoirs for zoonotic infections. During the last decade, the frequency and severity of human infections associated with C. ulcerans appear to be increasing in various countries. As the knowledge of genes contributing to the virulence of this bacterium was very limited, the complete genome sequences of two C. ulcerans strains detected in the metropolitan area of Rio de Janeiro were determined and characterized by comparative genomics: C. ulcerans 809 was initially isolated from an elderly woman with fatal pulmonary infection and C. ulcerans BR-AD22 was recovered from a nasal sample of an asymptomatic dog. The circular chromosome of C. ulcerans 809 has a total size of 2,502,095 bp and encodes 2,182 predicted proteins, whereas the genome of C. ulcerans BR-AD22 is 104,279 bp larger and comprises 2,338 protein-coding regions. The minor difference in size of the two genomes is mainly caused by additional prophage-like elements in the C. ulcerans BR-AD22 chromosome. Both genomes show a highly similar order of orthologous coding regions; and both strains share a common set of 2,076 genes, demonstrating their very close relationship. A screening for prominent virulence factors revealed the presence of phospholipase D (Pld), neuraminidase H (NanH), endoglycosidase E (EndoE), and subunits of adhesive pili of the SpaDEF type that are encoded in both C. ulcerans genomes. The rbp gene coding for a putative ribosome-binding protein with striking structural similarity to Shiga-like toxins was additionally detected in the genome of the human isolate C. ulcerans 809. The molecular data deduced from the complete genome sequences provides considerable knowledge of virulence factors in C. ulcerans that is increasingly recognized as an emerging pathogen. This bacterium is apparently equipped with a broad and varying set of virulence factors, including a novel type of a ribosome-binding protein. Whether the respective protein contributes to the severity of human infections (and a fatal outcome) remains to be elucidated by genetic experiments with defined bacterial mutants and host model systems

Chemical composition, cytotoxicity and larvicidal activity against Aedes aegypti of essential oils from Vitex gardineriana Schauer

Vitex gardneriana Schauer (Lamiaceae) popularly known as “jaramataia”, is a shrub commonly found in caatinga biome located in Northeast Brazil. In folk medicine, its leaves have been used as analgesic and anti-inflammatory agents. The chemical composition of the essential oil from leaves obtained by hydrodistillation was analyzed and identified by GC-MS and GC-FID and showing a total of 26 constituents (95.9%) being 2 monoterpenes (0.4%) and 24 sesquiterpenes (95.4%). The main constituents identified were cis-calamenene (29.7%), 6,9-guaiadiene (14.5%) and caryophyllene oxide (14.0%). The essential oil has been demonstrated high larvicidal activity againstAedes aegypti (LC50 = 28.0 μg/mL). In the evaluation of the bioassay with Artemia salina the essential oil showed LC50 = 98.11 μg/mL. Inaddition, the essential oil did not show cytotoxicity (IC50 > 2.50 mg/mL) by the hemolysis assay

Mortality among over 6 million internal and international migrants in Brazil: a study using the 100 Million Brazilian Cohort

BACKGROUND: To understand if migrants living in poverty in low and middle-income countries (LMICs) have mortality advantages over the non-migrant population, we investigated mortality risk patterns among internal and international migrants in Brazil over their life course. METHODS: We linked socio-economic and mortality data from 1st January 2011 to 31st December 2018 in the 100 Million Brazilian Cohort and calculated all-cause and cause-specific age-standardised mortality rates according to individuals' migration status for men and women. Using Cox regression models, we estimated the age- and sex-adjusted mortality hazard ratios (HR) for internal migrants (i.e., Brazilian-born individuals living in a different Brazilian state than their birth) compared to Brazilian-born non-migrants; and for international migrants (i.e., people born in another country) compared to Brazilian-born individuals. FINDINGS: The study followed up 45,051,476 individuals, of whom 6,057,814 were internal migrants, and 277,230 were international migrants. Internal migrants had similar all-cause mortality compared to Brazilian non-migrants (aHR = 0.99, 95% CI = 0.98-0.99), marginally higher mortality for ischaemic heart diseases (aHR = 1.04, 95% CI = 1.03-1.05) and higher for stroke (aHR = 1.11, 95% CI = 1.09-1.13). Compared to Brazilian-born individuals, international migrants had 18% lower all-cause mortality (aHR = 0.82, 95% CI = 0.80-0.84), with up to 50% lower mortality from interpersonal violence among men (aHR = 0.50, 95% CI = 0.40-0.64), but higher mortality from avoidable causes related to maternal health (aHR = 2.17, 95% CI = 1.17-4.05). INTERPRETATION: Although internal migrants had similar all-cause mortality, international migrants had lower all-cause mortality compared to non-migrants. Further investigations using intersectional approaches are warranted to understand the marked variations by migration status, age, and sex for specific causes of death, such as elevated maternal mortality and male lower interpersonal violence-related mortality among international migrants. FUNDING: The Wellcome Trust

Consumer Complaints and Company Market Value

Consumer complaints affect company market value and common sense suggests that a negative impact is expected. However, do complaints always negatively impact company market value? We hypothesize in this study that complaints may have a non-linear effect on market value. Positive (e.g. avoiding high costs to solve complaints) and negative (e.g. speedy and intense diffusion) tradeoffs may occur given the level of complaints. To test our non-linear hypothesis, a panel data was collected from cell phone service providers from 2005 to 2013. The results supported our tradeoff rationale. Low levels of complaints allow for companies to increase market value, while high levels of complaints cause increasing harm to market value. The sample, model and period considered in this study, indicates a level of 0.49 complaints per thousand consumers as the threshold for a shift in tradeoffs. The effects on market value become increasingly negative when trying to make reductions to move below this level, due to negative tradeoffs