56,215 research outputs found
Innovazione sociale tra vulnerabilità e resilienza delle comunità e dei territori
No full textil contributo ha l’ambizione di collegare il filone di ricerca sull’innovazione sociale a quello della sociologia dei disastri. Pur con specifiche differenze nei metodi di ricerca e nei modelli di spiegazione, la sociologia dei disastri concorda nel sottolineare la dimensione sociale, politica ed economica di eventi catastrofici (quali terremoti o alluvioni) - in aggiunta a quella naturale - nel delineare gli effetti e i danni complessivi. Le comunità rappresentano un attore primario, riconosciuto nel Sendai Framework delle Nazioni Unite, all'interno del ciclo dei disastri che si caratterizzano sia per vulnerabilità sia per resilienza, due aspetti da prendere congiuntamente in considerazione quando si vuole affrontare il tema della prevenzione e della riduzione del rischio a fronte di un disastro naturale. In questo senso, un approccio di innovazione sociale può contribuire a contestualizzare un 'wicked problem', quale quello rappresentato dai disastri, e contemporaneamente considerare le caratteristiche socioeconomiche della comunità che rappresentano realmente sia una fonte di vulnerabilità sia di resilienza, soprattutto quando incidono sul capitale sociale e il tessuto comunitario locale
Bleyer, Sartori e Bertoni: singulares imigrantes colonizadores de ideias
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Programa de Pós-Graduação em História, Florianópolis, 2013Esta investigação de doutorado se concentra na trajetória intelectual e de pesquisa de três imigrantes: o alemão George Carl Adolf Bleyer, o italiano César Sartori, médicos, e o botânico suíço Moisés Santiago Bertoni. A tese procura mostrar que esses protagonistas não eram somente imigrantes exercendo profissões em país estrangeiro, vindos à América movidos pelos movimentos migratórios e de colonização, mas intelectuais que desenvolveram pesquisas, defenderam ideias, produziram textos, doaram conhecimentos. Foram imigrantes singulares, em tese, colonizadores de ideias. Entre suas pesquisas, o ponto em comum é a temática indígena, pano de fundo desta tese, que os coloca em um mesmo território intelectual, embora tenham transitado em regiões geográficas distintas. O recorte temporal compreende o final do século XIX a meados do XX, período que demarca a chegada e permanência definitiva desses imigrantes no Brasil e no Paraguai. Dentre os documentos analisados, estão cartas pessoais e profissionais, artigos publicados em jornais, relatos de viagens, fotografias e livros publicados. Esse conjunto de fontes permite adentrar nas redes de sociabilidade estabelecidas por Bleyer, Sartori e Bertoni com familiares, profissionais, intelectuais, com discussões políticas e sociais, e também permite desvelar o lado emocional, quando expressaram sentimento de utopia ao migrarem para a América. This doctorate investigation is focused on the intellectual and research trajectory of three immigrants: the German George Carl Adolf Bleyer, the Italian César Sartori, both physicians; and the Swiss botanist Moisés Santiago Bertoni. The thesis aims to show that these leading figures were not only immigrants practicing their professions in a foreign country, coming to the Americas influenced by migration and colonization movements; but intellectuals who have developed researches, defended ideals, produced texts, donated knowledge. They have been unique immigrants, in thesis, ideas colonizers. Among their researches a common point is the indigenous theme, a background for this thesis, which places them in a single intellectual territory, although they have passed through distinct geographic regions. The time frame includes the late of the 19th century and mid-twentieth century, a period which marks the arrival and settlement of these immigrants in Brazil and Paraguay. Among the analyzed documents there are personal and professional letters, articles published in newspapers, travel reports, photographs and published books. This set of sources allows to penetrate the networks of sociability established by Bleyer, Sartori and Bertoni with relatives, professionals, intellectuals, social and political discussions, as well as with their emotional side, when they have expressed an utopia feeling while migrating to the Americas
Different Strategies to Alleviate Soil Compaction Risk During Tillage Operations
No full textCompaction causes soil degradation, but different strategies can help to mitigate this phenomenon, such as increasing soil strength under traffic and decreasing soil stress due to equipment features. Controlled traffic farming enhances soil compaction mitigation by confining all equipment transit to the traffic lane. Crop seedbeds remain undisturbed, improving crop performance and increasing yield. Controlled traffic needs equipment standardization for all operations, from tillage to harvest, which can overcomplicate equipment travel on public roads and use of contractors. This study investigates three strategies to alleviate soil compaction risk during tillage: Random traffic with tracks, with wheels and controlled traffic farming. Three scenarios were compared by using the following traffic indexes: Rut Length, Traffic Intensity, Mechanization Degree, and Field Load Index. Soil stresses in specific scenarios were calculated with the Terranimo® model. Collecting soil bulk density, penetrometer resistance, working time analysis, field traffic analysis and fuel consumption with telemetry was completed on a real scale thanks to a 19 ha field test on a farm in northeast Italy. The soil stress is higher in the Controlled traffic than in the other two random traffic scenarios due to the narrow width of the wheels used to decrease the trafficked area. The field index Ruth Length shows a higher value in CT caused by a lower working width. On Mechanization Degree the RT scenario has a 47% increase compared to CT and 21% more than RW due to the high power used. Lower bulk density and Cone Index were found in CT seedbed. CT shows a decrease in fuel consumption and CO2 emission due to higher traction efficiency
Intervista a Lorenzo Bianconi
No full textIn dialogo con Massimo Gentili-Tedeschi (Milano), successore di Claudio Sartori alla testa dell'Ufficio Ricerca Fondi Musicali (c/o Biblioteca nazionale Braidense e Conservatorio di musica 'G. Verdi' di Milano), ampio ricordo della personalità dell'insigne bibliografo e storico della musica, e dei contatti avuti con lui nell'ambito della ricerca per il Répertoire International des Sources Musicales (RISM) negli anni '60-'70
Thrombotic burden, D-dimer levels and complete compression ultrasound for diagnosis of acute symptomatic deep vein thrombosis of the lower limbs.
No full textBACKGROUND: Diagnostic algorithms for deep vein thrombosis (DVT) include D-dimer for its high negative predictive value, thus reducing the need for imaging.
Small thrombi may be associated with low D-dimer levels, increasing false negatives.
AIM: To assess the sensitivity and thus the false negative rates of standard and age-adjusted D-dimer cut offs for isolated distal DVT (IDDVT) in outpatients.
MATERIALS AND METHODS: We enrolled consecutive outpatients with suspected DVT of the lower limbs referring to our vascular emergency department from 2009 to 2018. Patients underwent D-dimer testing (STA, Stago, cut-off: 500 μg/L), pretest clinical probability (PTP) evaluation and complete compression ultrasonography. Follow-up was 3 months.
RESULTS: Among 3948 patients (M:1554-39%, median age 69), 486 proximal DVTs (12.3%) and 348 IDDVTs (8.8%) were diagnosed. Median D-dimer was higher in proximal than IDDVT (3960 vs 1400 μgr/L; p = 0.001). The false negative rate of the standard D-dimer cut-off was 2% (95%CI: 0.8-3.2%) for proximal DVT and 14.7% (95% CI: 11-81%) for IDDVT. The false negative rate of the age-adjusted cut-off was 4.9% (3-7%) for proximal DVT and 19.5% (95% CI: 15.4-24.7%) for IDDVT.
CONCLUSIONS: Small calf thrombi are associated with low D-dimer levels, and age-adjusted D-dimer may be below the cut-off more frequently in subjects with IDDVT than standard cut-off D-dimer, although such D-dimer levels might exclude IDDVT that require treatment
Revealing the diversity of Cloeodes Traver, 1938 (Ephemeroptera: Baetidae) in the Neotropics: description of eleven new species from Brazilian mountain ranges
No full textSalles, F. F., Massariol, F. C., Angeli, K. B., Lima, M. M., Gattolliat, L., Sartori, M. (2015): Revealing the diversity of Cloeodes Traver, 1938 (Ephemeroptera: Baetidae) in the Neotropics: description of eleven new species from Brazilian mountain ranges. Zootaxa 4020 (1): 1-50, DOI: 10.11646/zootaxa.4020.1.
Mitochondria of sensory neurons: changes during lifetime
No full textDiazinon (D) is an organophosphorate synthetic insecticide widely used in the world. It inhibits acetylcholinesterase activity and damages reproduction as well as other organic functions mostly by increasing lipid peroxidation. Melatonin (M) is an indolamine secreted by the pineal gland. It performs numerous functions but recently it has been proposed as a good scavenger of oxygen radicals. The earthworm E. foetida is reputed as an excellent bioindicator of environmental chemical pollution. The testicular toxic effect of D and the protective role of M was analyzed in adult E. foetida, at 1, 7, 10, 15 and 30 days after exposure to 1/4, 1/2 and 3/4 of LD50. Sperm counts and the diameter of the seminal receptacles and of their lumina were altered in D exposed worms, which in addition have a lower percentage of survival, decreased weight and show cholinergic effect (coiling of the tail). All these changes were prevented fully or in part by simultaneous exposure to M. The observations confirm that D is a general and testicular toxicant for E. foetida, a good sentinel indicator and stresses the role of M as a protective agent
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