Hoverflies in organic apple orchards in north-western Italy

A list is given of hoverflies collected by means of Malaise and white sticky traps in two organic apple orchards in north-western Italy. The total number of collected species was 17 and it was compared with literature, in order to discuss differences due to sampling methods. The predominant species collected were Sphaerophoria scripta (L.) (73% of the total sample) and Eupeodes corollae (F.) (14%). The trend of adult captures of this species is drawn and discussed. Data on wild plant species in the orchards are also given

Cross-talk between chronic lymphocytic leukemia (CLL) tumor B cells and mesenchymal stromal cells (MSCs): implications for neoplastic cell survival

Leukemic cells from Chronic Lymphocytic Leukemia (CLL) patients interact with stromal cells of the surrounding microenvironment. Mesenchymal Stromal Cells (MSCs) represent the main population in CLL marrow stroma, which may play a key role for disease support and progression. In this study we evaluated whether MSCs influence in vitro CLL cell survival. MSCs were isolated from the bone marrow of 46 CLL patients and were characterized by flow cytometry analysis. Following co-culture of MSCs and leukemic B cells, we demonstrated that MSCs were able to improve leukemic B cell viability, this latter being differently dependent from the signals coming from MSCs. In addition, we found that the co-culture of MSCs with leukemic B cells induced an increased production of IL-8, CCL4, CCL11, and CXCL10 chemokines.As far as drug resistance is concerned, MSCs counteract the cytotoxic effect of Fludarabine/Cyclophosphamide administration in vivo, whereas they do not protect CLL cells from the apoptosis induced by the kinase inhibitors Bafetinib and Ibrutinib. The evidence that leukemic clones are conditioned by environmental stimuli suggest new putative targets for therapy in CLL patients

Effects of complete replacement of corn flour with sorghum flour in dairycows fed Parmigiano Reggiano dry hay-based ration

The aim of this research was to evaluate of the productive responses of cows fed a dry hay based total mixed ration (TMR) in which sorghum (SOR) or corn (COR) meal (8 kg/h/d) were the main source of starch. The study involved two dairy herds located in the Parmigiano Reggiano PDO area, for a total of 1,400 cows (30% primiparous and 70% pluriparous). Each herd was fed alternatively SOR or COR TMR for 4 periods of 3 weeks: two weeks of adaptation and one week of data collection. Total milk production and composition, cheesemaking properties, fatty acid content and cheese yield were measured. In addition, within each herd, a random subgroup of 50 cows was selected for individual milk production, composition and cheesemaking properties analysis. Fibre digestibility was evaluated on faecal samples collected in 15 cows randomly selected in each subgroup. Data were analysed by a linear mixed model procedure with diet, herd, days in milk, parity and their interactions as fixed effects and cow as random effect. Individual milk production increase in SOR (32.43 vs. 31.34 kg, for SOR and COR, respectively; p<.0001) however, bulk milk and cheese yield did not show differences. Milk urea content was higher in SOR (27.38 vs. 22.79 mg/dL, for SOR and COR, respectively; p<.05).In this study the complete replacement of corn with finely ground sorghum meal in dairy cow diets in the Parmigiano Reggiano region did not result in negative effects on cows\u2019productivity, cheese making properties and production

UM CASO DE APROPRIAÇÃO ATIVA DA PESQUISA ACADÊMICA QUE VEM SE FORMATANDO NO INTERIOR DO MATO GROSSO

The work presents the results of an investigation involving the research interests of a group of graduate students who also act as teachers in the basic education network. From a content analysis of the collected material, it was possible to prospect the main themes researched by the group and observe that they have a direct relationship with the improvement of the pedagogical spaces and academic contexts that surround them. The statements of these professionals reveal that the search for training and shared pedagogical knowledge has a strong connection with their contexts and everyday needs. The results point to a fertile path for the transit of recent research results to the classroom floor, in a perspective of active appropriation carried out by the graduate students involved.El trabajo presenta los resultados de una investigación que involucra los intereses investigativos de un grupo de estudiantes de posgrado que también actúan como docentes en la red de educación básica. A partir de un análisis de contenido del material explorado, fue posible prospectar los principales temas investigados por el grupo y observar que tienen una relación directa con la mejora de los espacios pedagógicos y contextos académicos que los rodean. Las declaraciones de estos profesionales revelan que la búsqueda de formación y conocimiento pedagógico compartido tiene una fuerte conexión con sus contextos y necesidades cotidianas. Los resultados apuntan a un camino fértil para el tránsito de los resultados de las investigaciones recientes al piso del aula, en una perspectiva de apropiación activa realizada por los estudiantes de posgrado involucrados.O trabalho apresenta os resultados de uma investigação envolvendo os interesses de pesquisa de um grupo de pós-graduandos que também atuam como professores na rede básica de ensino. A partir de uma análise de conteúdo do material explorado, foi possível prospectar os principais temas pesquisados pelo grupo e observar que eles apresentam relação direta com a melhoria dos espaços pedagógicos e contextos acadêmicos que os cercam. As enunciações destes profissionais revelam que a busca por capacitação e conhecimentos pedagógicos compartilhados apresentam forte conexão com seus contextos e necessidades cotidianas. Os resultados apontam um caminho fértil para o trânsito dos resultados de pesquisa recentes até o chão de sala, em uma perspectiva de apropriação ativa realizada pelos pós-graduandos envolvidos

EMPUXO SOBRE UM CORPO IMERSO: UMA INVESTIGAÇÃO EM CONTEXTO DE APRENDIZAGEM ATIVA CONSIDERANDO O PARADOXO HIDROSTÁTICO DE GALILEU

Este trabalho apresenta um conjunto de atividades, realizadas em um curso superior de biologia da rede federal de ensino, com objetivo de investigar o aprendizado do empuxo em contextos de aprendizagem ativa. Os discentes foram apresentados a uma configuração experimental na qual o conceito de empuxo, conforme enunciado em livros didáticos de ensino médio e superior, falha. Tal configuração é conhecida como paradoxo de Galileu. Apesar da crítica apontada no século XVII, imprecisões de linguagem continuam ocorrendo, até mesmo entre estudantes de graduação, conforme mostramos no presente texto. Tais imprecisões parecem ser reforçadas por obras consagradas da literatura especializada em ensino de física

Stayability in Simmental cattle as affected by muscularity and body condition score between calvings

The present study aimed to investigate the association between stayability (STAY) traits, muscularity, and body condition score (BCS) in the Italian Simmental dual-purpose cows. Data were collected from 2,656 cows linearly scored in their first lactation from 2002 to 2020 and reared in 324 herds. The binary trait STAY, which is the ability of a cow to stay in the herd, was obtained for each cow-lactation available up to parity 5 (from STAY1-2 to STAY4-5). Analysis of STAY was carried out using logistic regression, considering the fixed effect of energy corrected milk, conception rate, somatic cell score, and muscularity or BCS predicted at different time points. The herd of linear classification and residual error were the random effects. Primiparous cows with a medium BCS and muscularity in early lactation presented a more favorable STAY across life compared to thinner ones (P < 0.05). In fact, cows with an intermediate BCS/muscularity were more likely to stay in the herd after the third lactation (STAY3-4), compared to those presenting a lower BCS/muscularity (P < 0.01). However, cows whose muscularity was high were generally less likely to start the third lactation compared to the others. A potential explanation for this could be the willing to market cows with good conformation for meat purpose. Simmental is in fact a dual-purpose breed known for the good carcass yield and meat quality. This study demonstrates how muscularity and BCS available early in life can be associated with the ability of Simmental cows to stay in the herd

cis-Bis{1-[(4-nitro­phen­yl)diazen­yl]-2-naphtholato}dipyridine­nickel(II)1

In the title compound, [Ni(C16H10N3O3)2(C5H5N)2], the NiII cation is in a distorted octa­hedral NiN4O2 coordination by two independent bidentate 1-[(4-nitro­phen­yl)diazen­yl]-2-naph­thol­ate anions and two pyridine ligands. C—H⋯O inter­actions between aromatic rings and the O atoms of the nitro substituents build up a two-dimensional supra­molecular arrangement parallel to (100)