170,315 research outputs found
Sistema de produção do milho safrinha em Mato Grosso do Sul.
No full textOrganizado por Gessi Ceccon e Luiz Alberto Staut; Palestra
Rendimento e qualidade de grãos de milho safrinha, em Mato Grosso do Sul, 2004 a 2007.
No full textOrganizado por Gessi Ceccon e Luiz Alberto Staut
Manejo de espécies forrageiras em consórcio com milho safrinha.
No full textO propósito deste documento é fornecer algumas informações sobre o cultivo consorciado de milho com espécies forrageiras dos gêneros Urochloa e Panicum, de forma a proporcionar maiores subsídios na tomada de decisão quanto à adoção deste sistema visando a sustentabilidade de sistemas produtivos de grãos e de carne/leite, pela utilização do componente forrageiro em duplo propósito para fornecer forragem no período de maior escassez de alimento e, ainda, viabilizar o SPD pelo resíduo depositado na superfície do solo.Editado por: Germani Concenço, Gessi Ceccon
Friendship attachment style, intolerance of uncertainty, and psychological distress among unaccompanied immigrant minors in times of COVID‐19
No full textIntroduction: This cross-sectional study used a convergent parallel mixed-method design to investigate friendship attachment style, intolerance of uncertainty, and psychological distress among unaccompanied immigrant minors (UIMs) during the second wave of the COVID-19 pandemic in Italy. Method: Participants were 80 male UIMs (Mage = 17 years, standard deviation = 0.84) hosted in residential care communities. Individual interviews comprising questionnaires and open-ended questions assessed the constructs of interest. Qualitative data were analyzed through thematic content analysis, whereas descriptive statistics and regression analysis were computed on quantitative data. Results: Several UIMs mentioned positive relationships with peers, but more than half also felt reluctant to trust others and build new friendships due to events experienced before and during migration. However, in quantitative data, 69% identified themselves with the secure friendship attachment style. Regarding intolerance of uncertainty, participants expressed feelings of worry about the pandemic, but also emphasized their resources in terms of confidence, optimism, and planning skills, as well as being accustomed to uncertainty; indeed, levels of this variable were low-to-medium. In regression analysis, insecure attachment and higher intolerance of uncertainty were each associated with greater psychological distress. Moreover, psychological distress was lower among securely attached UIMs with low (vs. high) levels of intolerance of uncertainty. Conclusion: The findings suggest that, even in conditions of societal insecurity, UIMs display resilience and employ effective coping strategies; however, a lack of trust in peer relationships and the inability to tolerate uncertainty may undermine their psychological adjustment. Implications for developmental theory and practice are discussed
Metilazione in fiala di miscele di acidi grassi C6-C22 con metanolo e resina a scambio cationico. Applicazione agli acidi grassi liberi dei formaggi
No full textLa frazione lipidica nella caratterizzazione merceologica dei formaggi. Acidi grassi liberi volatili. Nota II
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Synthesis and structure of tricarbonylchromium mono-, bis- and tris-complexes of 10-methyltribenzotriquinacene
No full textCeccon A, Gambaro A, Manoli F, et al. Synthesis and structure of tricarbonylchromium mono-, bis- and tris-complexes of 10-methyltribenzotriquinacene. Journal of the Chemical Society, Perkin Transactions 2, Physical Organic Chemistry. 1991;2(2):233-241.Complexation of 10-methyltribenzotriquinacene (MTBT) a bent triarene of C3v symmetry afforded six mono-, bis- and tris-Cr(CO)3complexed isomers which have been isolated and identified. The results of various synthetic experiments indicate that complexation at the convex side of a free benzene ring is favoured, probably for steric reasons. As compared with the isomer complexed at the convex face (anti), that complexed at the concave one (syn) is less stable. The 1H and 13C NMR spectral data together with the X-ray structures of the two bis- and one tris-complexes account for the lower stability of the syn isomers
Separazione ed identificazione mediante cromatografia liquida ad alta pressione accoppiata alla spettrometria di massa dei composti carbonilici presenti nelle bevande alcoliche
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