87,400 research outputs found
Gerald F. Moran et Maris A. Vinovskis, Religion, Family and the Life Course. Exploration in the Social History of Early America
No full textBergamasco Lucia. Gerald F. Moran et Maris A. Vinovskis, Religion, Family and the Life Course. Exploration in the Social History of Early America. In: Annales. Histoire, Sciences Sociales. 55ᵉ année, N. 6, 2000. pp. 1380-1381
Gerald F. Moran et Maris A. Vinovskis, Religion, Family and the Life Course. Exploration in the Social History of Early America
No full textBergamasco Lucia. Gerald F. Moran et Maris A. Vinovskis, Religion, Family and the Life Course. Exploration in the Social History of Early America. In: Annales. Histoire, Sciences Sociales. 55ᵉ année, N. 6, 2000. pp. 1380-1381
Modelos aplicados a cultura da cana-de-açúcar: CANEGRO e outros.
No full textModelo matemático-fisiológico de estimativa de produtividade, descrito por Barbieri, 1993. Modelo matemático de Balanço de Carbono, descrito por Pereira, 1987. Modelo de acúmulo de matéria seca, descrito por Inman-Bamber and Thompson, 1989. Modelo CANEGRO, descrito por Inman-Bamber, Culverwell, McGlinchey, 1993. Evolução para a programação modular, descrito por International Consortium for Agricultural Systems Applications - ICASA. Modelo de Transferência de metais pesados no sistema solo-cana-de-açúcar, descrito por Fábio César da Silva, Laércio Luis Vendite, Alessandra Fabíola Bergamasco, 2000. Modelo de Crescimento de Índice de Área Foliar (IAF) de cana-de-açúcar, descrito por Teruel, 1996
Chapter 23. Studies on sleep during the apallic syndrome
No full textThe presence of electroencephalographic and behavioral patterns typical of sleep in unconscious patients was established some time ago (Jouvet et al., 1961; Chatrian et al., 1963; Silverman, 1963; Hess, 1965; Bergamasco et al., 1966a, b; Bricolo, 1966; Cadilhac et al., 1966; Lepetit et al., 1966). There have also been studies on the correlation between the organization of sleep, degree of coma, and anatomic cerebral lesions (French, 1952; Jouvet et al., 1961; Silverman, 1963; Bricolo, 1966; Cadilhac et al., 1966; Lepetit et al., 1966). Finally, it has been suggested that the type of sleep organization might yield useful elements for a prognosis (Bergamasco et al., 1966a, b; Bricolo, 1966). The research carried out by Dolce and Kaemmerer (1966), Gentilomo et al. (1966), Bricolo (1966), Rosadini and Gentilomo (1967) appears particularly important, since they studied the EEG patterns of sleep in a group of comatose patients who were evolving towards the apallic syndrome. These authors reported that they had found all the various phases of physiologic sleep, noticing only a peculiar gradual recovery of each single phase, characterized by the constant delay of desynchronized sleep with REM which always reappears after the complete restructuring of synchronized sleep. These initial observations led to further research on the sleep of comatose patients and in particular in cases of prolonged comas and of apallic syndromes. These studies were undertaken during the past few years by sleep laboratories in Turin, Frankfurt, Genoa, and Verona
Spatially Distributed Sea Wave Measurements
No full textIn recent years, there has been growing interest in remote and proximal observation of sea surface waves [...
Arsenio Frugoni e il problema della biografia
No full textBiografia ed eresia. Arsenio Frugoni nella cultura italiana del Novecento è il
titolo della conversazione a distanza che, su invito di Giulio Orazio Bravi, ebbi
il 5 marzo 2021 con Enrico Valseriati nel quadro della ventitreesima edizione
di Fonti e temi di storia locale, ciclo di seminari organizzato da Archivio
Bergamasco. Dal momento che la conversazione è reperibile on-line1 , non
ripeterò quanto detto allora: proverò, invece, a mettere in rilievo come quella
conversazione sia stata fondamentale per alcuni sviluppi della mia ricerca
intorno alla figura e all’opera di Frugoni
Multidisciplinary analysis of three box cores collected east to the Hillary Canyon (Eastern Ross Sea, Antarctica)
No full textThe LGM and post-LGM history of the Antarctic Ice Sheet (AIS) can be reconstructed by studying cores and box cores collected along the continental slope of Antarctica. According to several authors (Shipp et al., 1999; Mosola & Anderson, 2006; Halberstadt et al., 2016; Anderson et al., 2018; Gales et al., 2021) the Western Antarctic Ice Sheet (WAIS) was grounded near the shelf break in many sectors of the Eastern Ross Sea (ERS) during the Last Glacial Maximum (LGM). However, the post-LGM retreat is characterized by lacks and uncertainties.
Three box cores were collected east of the Hillary Canyon, which carves the ERS continental slope south-east to the Iselin Bank, during the XXIX PNRA (Italian National Antarctic Research Program) expedition (2013-2014). The samples were studied in the frame of the ROSSLOPE II (2013/AN2.01) PNRA project and then in the frame of the STREAM Project (Late Quaternary evolution of the ocean-ice sheet interactions: the record from the Ross Sea continental margin, Antarctica (project funded by the Italian Ministry of Foreign Affairs and International Cooperation and the National Research Foundation of Korea). Grain size, organic matter, biogenic silica and water content, magnetic susceptibility and chemical composition (XRF core scanner) were analyzed in order to reconstruct the paleoclimate of Late Quaternary. Organic matter (14C AIO dates) was used to date each box core. The results of these analyses are presented here.
References
Anderson J.B., Simkins L.M., Bart P.J., De Santis L., Halberstadt A.R.W., Olivo E. & Greenwood S.L. 2018. Seismic and geomorphic records of Antarctic Ice Sheet evolution in the Ross Sea and controlling factors in its behaviour. In: Le Heron, D.P., Hogan, K.A., Phillips, E.R., Huuse, M., Busfield, M.E. & Graham, A.G.C. Eds., Glaciated Margins: The Sedimentary and Geophysical Archive. Geological Society, London, Special Publications, 475, 223-240.
Gales J., Rebesco M., De Santis L., Bergamasco A., Colleoni F., Kim S., Accettella D., Kovacevic V., Liu Y., Olivo E., Colizza E., Florindo-Lopez C., Zgur F. & McKay R. 2021. Role of dense shelf water in the development of Antarctic submarine canyon morphology. Geomorphology, 372, 107453.
Halberstadt A.R.W., Simkins L.M., Greenwood S.L. & Anderson J.B. 2016. Past ice-sheet behaviour: retreat scenarios and changing controls in the Ross Sea, Antarctica. The Cryosphere, 10, 1003-1020.
Mosola A.B. & Anderson J.B. 2006. Expansion and rapid retreat of the West Antarctic Ice Sheet in Eastern Ross Sea: possible consequence of over-extended ice stream. Quat. Sci. Rev., 29, 2177-2196.
Shipp S., Anderson J.B. & Domack E.W. 1999. Late Pleistocene/Holocene retreat of the West Antarctic ice-sheet system in the Ross Sea. Part 1. Geophysical results. GSA Bulletin, 111, 1486–1516
Seasonal characteristics of size-fractionated phytoplankton community and fate of photosynthesized carbon in a sub-antarctic area (Straits of Magellan)
No full textPhytoplankton community size drives the rates of biogenic carbon and the overall structure and dynamics of the marine pelagic food web. The Straits of Magellan, an inland passage between the Pacific and Atlantic Oceans, can be separated in three main sub-basin: the western-Pacific, the V-shaped central zone, and the eastern-Atlantic. To provide insights on the food structure of the phytoplankton community, size-fractionated chlorophyll a concentration and primary production rates were measured across the three sectors of the Magellan Straits in four periods between 1989 and 1995 in the Straits. Phytoplanktonic biomass and production ratios provided ecological insights on the food web structure, including the relevance of grazing on its largest fraction.
The micro-phytoplanktonic fraction (>10 μm) in the western-Pacific sub-basin is significantly less abundant than in the Central and Atlantic ones. Conversely, the lowest abundance of the pico- fraction (< 2.0 μm) is encountered in the Atlantic sub-basin. The observed patterns agree with the diffusion of smaller-size fractions from the western towards the easternmost sector of the Straits, and suggest that the largest phytoplankton tend to accumulate in the inner stretch of the Straits, being constrained by a clockwise gyre generated by tidal phases or partialy spilling out into the Atlantic sector. The most active grazing activities occur in the central arm during the spring bloom and last even in summer.
Our results pinpoint also that the basic levels of the planktonic food web rely on the nano-phytoplankton (10-2 μm) fraction, which is the main contributor to the continuum multivorous food web. When nutrient pulses from land freshwater and water mixing enter the system, the structure of the plankton in the Straits shifts towards the herbivorous food web and is characterized by the presence of large-size diatoms. The complex dynamics of the plankton comuunities in the Straits keep it in a persistent mesotrophic state, featuring a lower trophic status of than the Antarctic coastal waters but a much higher one than oligotrophic temperate areas
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