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Search Results: 1 - 10 of 2851 matches for " Matteo Bendini "
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Pain-related somatosensory evoked potentials and functional brain magnetic resonance in the evaluation of neurologic recovery after cardiac arrest: a case study of three patients
Paolo Zanatta, Simone Messerotti Benvenuti, Fabrizio Baldanzi, Matteo Bendini, Marsilio Saccavini, Wadih Tamari, Daniela Palomba, Enrico Bosco
Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine , 2012, DOI: 10.1186/1757-7241-20-22
Abstract: Early and accurate prognostic assessment of neurological functional outcomes in comatose patients after cardiac arrest is a relevant medical, ethical, and economic issue. It has been shown that beyond the Glasgow Coma Scale (GCS), a patient's pupil light reactivity, corneal reflexes, myoclonus status epilepticus, and serum neuron-specific enolase, short latency somatosensory-evoked potentials (SEPs) (N20/P25) improve the accuracy of neurological prognosis in comatose patients after cardiac arrest [1]. SEPs have shown high sensitivity and specificity in predicting poor outcomes. Indeed, that the bilateral disappearance of cortical N20/P25 is well-established to be associated with adverse outcomes such as death or survival in a vegetative state. Nonetheless, the presence of N20/P25 may not be sensitive enough to predict a good neurological outcome [2]. In fact, only the event-related evoked potentials (i.e., mismatched negativity and novelty P300), middle latency cortical somatosensory-evoked potentials (MLCEPs), and reactivity electroencephalogram (EEG) background have been associated with a favourable neurological prognosis [3-7].In recent years, brain functional neuroimaging has been used in order to clarify the diagnosis of the vegetative state, suggesting that brain activation imaging may reflect awareness and/or cognition and provide reliable prognostic information [8,9]. However, given that this methodology is based on imagery and communication task paradigms, this approach is only feasible in the chronic phase of consciousness disorders. Moreover, studies using positron emission tomography have shown that minimally conscious state patients, compared to vegetative state patients, may show brain processing activation elicited by noxious electrical stimulation of the median nerves similar to that seen in healthy controls, suggesting a possible cortical processing of pain [10-12]. However, the intensity of electrical stimuli applied in vegetative patients (i.e., 1
Ocupaciones y movilidades en pueblos rurales de la Patagonia: Una mirada desde lo agrario
Bendini,Mónica; Steimbreger,Norma;
Mundo agrario , 2011,
Abstract: the study of occupations and mobilities in rural towns introduces us to the relationship between agriculture and rurality, and to "the" rural as non residual space in front of "the" modern and "the" urban. a related question has to do with the centering/des-centering of the agro, either by monoactivity or by the main occupation in case of multiple occupations, as well as the form taken by the relations between countryside (rural scattered) and town (rural aglomerated). on the other hand, it relates to the nature of the rural world as social space, differentiated and built, a place of life and work. from a glance that makes visible the role of the agro in the rural, we show diverse occupational nets and displacements from case studies which exemplify the issues raised: two rural towns with variability in agro development and the social organization of agriculture. on the one hand, it is a rural town with high population growth located in an area of agricultural expansion, with company scale organization, predominance of wage relations of production and agricultural occupations, mostly important presence of seasonal migrant workers. on the other hand, a rural town located in a region historically marginal and slow down, sparsely populated, in an area of plateau dedicated to extensive livestock breeding where there coexist large farms and peasant units; recent population growth, traditional agro occupations and pluriactivity also traditional. the empirical research show the diverse spatial movements, the occupations and their forms of combination, the principality of the agro activity and related ones, and the consequent identity character of those towns. the findings lead us to raise the issue of the breakdown of the single occupation and of the complexity of the link countryside - town. the nowadays concern of the agro in the rural, and of the rural "living" towns, are matters that new rurality and globalization issues have been sometimes overshadowed
Ocupation and movilization in Patagonia rural towns: An agrarian point of view Ocupaciones y movilidades en pueblos rurales de la Patagonia: Una mirada desde lo agrario
Mónica Bendini,Norma Steimbreger
Mundo agrario , 2011,
Abstract: The study of occupations and mobilities in rural towns introduces us to the relationship between agriculture and rurality, and to "the" rural as non residual space in front of "the" modern and "the" urban. A related question has to do with the centering/des-centering of the agro, either by monoactivity or by the main occupation in case of multiple occupations, as well as the form taken by the relations between countryside (rural scattered) and town (rural aglomerated). On the other hand, it relates to the nature of the rural world as social space, differentiated and built, a place of life and work. From a glance that makes visible the role of the agro in the rural, we show diverse occupational nets and displacements from case studies which exemplify the issues raised: two rural towns with variability in agro development and the social organization of agriculture. On the one hand, it is a rural town with high population growth located in an area of agricultural expansion, with company scale organization, predominance of wage relations of production and agricultural occupations, mostly important presence of seasonal migrant workers. On the other hand, a rural town located in a region historically marginal and slow down, sparsely populated, in an area of plateau dedicated to extensive livestock breeding where there coexist large farms and peasant units; recent population growth, traditional agro occupations and pluriactivity also traditional. The empirical research show the diverse spatial movements, the occupations and their forms of combination, the principality of the agro activity and related ones, and the consequent identity character of those towns. The findings lead us to raise the issue of the breakdown of the single occupation and of the complexity of the link countryside - town. The nowadays concern of the agro in the rural, and of the rural "living" towns, are matters that new rurality and globalization issues have been sometimes overshadowed. El estudio de las ocupaciones y movilidades en pueblos rurales nos introduce en la relación agricultura y ruralidad y en lo rural como espacio no residual frente a lo moderno y urbano. Una cuestión vinculada tiene que ver con el centramiento / descentramiento de lo agrario, ya sea por monoactividad o por principalidad de la ocupación en caso de pluriactividad, como también con la forma que adoptan las relaciones entre campo (rural disperso) y pueblo (rural aglomerado). Por otro lado, se relaciona con la naturaleza del mundo rural en tanto espacio social, diferenciado y construido, y como lugar de vida y de
Mundos migratorios: Periplos en los ciclos de vida y de trabajo
Bendini,Mónica; Radonich,Martha; Steimbreger,Norma;
Trabajo y sociedad , 2012,
Abstract: seasonal temporary workers rebuilding migration projects every year arrive to fruit harvest in the valleys of rio negro. to this end, we characterize the spaces of life and work as migration contexts, their family histories and occupational trajectories. the analytical perspective is to visualize them from family social reproduction strategies and to focus on migration projects as one of its own elements. this study can be enrolled in the line of empirical research and theoretical conceptualization on the territorial mobility of workers and the expansion of capital in export agricultural regions. after successive approximations by extensive, typological and comparative procedures, we understand that the study could be enriched by the incorporation of social insights on two histories of life, paradigmatic it is one by its points of anchorage between family history and agrarian social history but both are representative of migratory harvest flows and involve two or three generations of workers. in them, we analyze the mutual relations between labor trajectories, space itineraries and family dynamics. we deepen in vital and occupational trajectories in their historical travesties and space itineraries. critical perspective and empirical data redefine seasonal work in agriculture and the character that migration process assumes in dynamic regions of dependent capitalism. workers movements show different levels of territories but also express paradoxical modernization with persistence of marginalization in subalternization.
Caracteriza??o físico-química do mel de abelhas proveniente da florada do cajueiro
Bendini, Juliana do Nascimento;Souza, Darcet Costa;
Ciência Rural , 2008, DOI: 10.1590/S0103-84782008000200047
Abstract: the present study was aimed at the identification and characterization of the bee honey (apis mellifera) derived from cashew flowers (anacardium occidentale l.). the study was carried out through the analysis of 24 samples of honey collected from apiaries distributed in a cashew plantation of about 1000 hectares, located in the area around the town of cascavel, in the state of ceará, brazil. the samples were submitted to melissopalinological and physicochemical analysis (humidity, total acidity, ashes, total sugars, lund, ph, electrical conductivity, hmf, water activity, and density). on the basis of the melissopalinological analysis, the honey was considered unifloral, with its origin traced to the cashew flowering. the variation intervals of the physicochemical parameters under analysis were: 16.5-19.2% (humidity), 22-40meq kg-1 (total acidity), 0.18-0.30% (ashes), 80.8-83.5% (total sugars), 1.0-2.0ml (lund), 3.48-3.83 (ph), 179-198μs cm-1 (electrical conductivity), 9.6-30.91mg kg-1 (hmf), 0.62-0.76 (water activity), and 1.337-1.437g ml-1 (density). the analyses show that the honey originating from the cashew flowering presents unique physicochemical characteristics which are within the standards established by the current legislation.
Mundos migratorios: Periplos en los ciclos de vida y de trabajo Migrant worlds: Itineraries in the cycles of life and work
Mónica Bendini,Martha Radonich,Norma Steimbreger
Trabajo y sociedad , 2012,
Abstract: Se trata de reconstruir los proyectos migratorios de trabajadores transitorios estacionales que todos los a os arriban para la cosecha de la fruta en los valles del río Negro. Para ello caracterizamos sus contextos en tanto espacios de vida y de trabajo, sus historias familiares y trayectorias ocupacionales. La perspectiva analítica consiste en visualizarlos desde las estrategias familiares de reproducción social, focalizando en los proyectos migratorios como uno de sus elementos constitutivos. Se inscribe este estudio en una línea de investigación empírica y de reflexión teórica acerca de la movilidad territorial de trabajadores y la expansión del capital en regiones agrícolas de exportación. Luego de aproximaciones sucesivas por procedimiento extensivo, tipológico y comparativo consideramos que el estudio resultaría enriquecido con la incorporación de una mirada microsocial. A través de dos historias de vida, paradigmática una por sus puntos de anclaje entre la historia familiar y la historia social agraria aunque ambas son representativas de flujos migratorios y de lugares de origen e involucran dos y tres generaciones de migrantes, analizamos las mutuas relaciones entre la historia laboral, los desplazamientos espaciales y la dinámica familiar. Ahondamos en las carreras vitales y ocupacionales; en las trayectorias familiares que expresan recorridos históricos y periplos espaciales. Desde una perspectiva crítica, la evidencia contribuye a la resignificación de la migración estacional en el agro y del carácter que ese proceso asume en regiones dinámicas de capitalismo dependiente. El desplazamiento de trabajadores agrícolas da cuenta de la jerarquización de los territorios pero también de una modernización paradojal con persistencia de marginación en la subalternización. Seasonal temporary workers rebuilding migration projects every year arrive to fruit harvest in the valleys of Rio Negro. To this end, we characterize the spaces of life and work as migration contexts, their family histories and occupational trajectories. The analytical perspective is to visualize them from family social reproduction strategies and to focus on migration projects as one of its own elements. This study can be enrolled in the line of empirical research and theoretical conceptualization on the territorial mobility of workers and the expansion of capital in export agricultural regions. After successive approximations by extensive, typological and comparative procedures, we understand that the study could be enriched by the incorporation of social insights on two histories o
Assessing Rainfall Erosivity with Artificial Neural Networks for the Ribeira Valley, Brazil
Reginald B. Silva,Piero Iori,Cecilia Armesto,Hugo N. Bendini
International Journal of Agronomy , 2010, DOI: 10.1155/2010/365249
Abstract: Soil loss is one of the main causes of pauperization and alteration of agricultural soil properties. Various empirical models (e.g., USLE) are used to predict soil losses from climate variables which in general have to be derived from spatial interpolation of point measurements. Alternatively, Artificial Neural Networks may be used as a powerful option to obtain site-specific climate data from independent factors. This study aimed to develop an artificial neural network to estimate rainfall erosivity in the Ribeira Valley and Coastal region of the State of S?o Paulo. In the development of the Artificial Neural Networks the input variables were latitude, longitude, and annual rainfall and a mathematical equation of the activation function for use in the study area as the output variable. It was found among other things that the Artificial Neural Networks can be used in the interpolation of rainfall erosivity values for the Ribeira Valley and Coastal region of the State of S?o Paulo to a satisfactory degree of precision in the estimation of erosion. The equation performance has been demonstrated by comparison with the mathematical equation of the activation function adjusted to the specific conditions of the study area. 1. Introduction Erosion is considered one of the main causes of depauperation and alteration of soil properties and, consequently, of loss of agricultural soil. Mathematical models are used to quantify and/or predict such losses [1, 2]. One classical example is the universal soil loss equation (USLE), proposed by Wischmeier and Smith [3]. This equation predicts the average annual soil loss from agricultural land. The USLE is represented by the product of the following factors: (a) rainfall erosivity (R), (b) soil erodibility (K), (c) slope length (L), (d) slope percent (S), (e) soil use, handling, and coverage (C), and (f) conservative practices of soil support (P). The R factor is an index that expresses the rainfall erosivity, in other words, its erosive capacity [4]. Erosivity is defined as the rainfall potential for soil erosion and is exclusively a function of rainfall physical characteristics, including amount, intensity of fall, droplet size, terminal velocity, and kinetic energy. Some studies have been conducted to further detail research on this erosive agent and showed that the rainfall characteristics that provide the best correlations with soil losses are intensity of fall and kinetic energy [5]. Therefore, the estimation of erosivity values, which represents the rainfall potential for erosion, is essential for planning soil
Persistencia campesina en el norte de la Patagonia: Movilidades espaciales y cambios en la organización social del trabajo
Bendini,Mónica-Isabel; Steimbreger,Norma-Graciela;
Cuadernos de Desarrollo Rural , 2011,
Abstract: in a context of territorial expansion of the capital, the paper deals with the persistence of peasant farmers in northern patagonia by developing various adaptive strategies as a form of resistance to expulsion. changes are examined not only in households but also in the areas of life and work of those who call themselves breeding producers "crianceros" in two regions of extensive herd-oriented export of wool and hair, mohair. the cases show that the territorial expansion of capital involves social dynamics that go beyond production and institutional transformations; they show increase of multi activity in peasant households. spatial mobility due to production and labor is more complex, and also generates changes in other levels of rurality, in rural habitat, and the enlarge of rural towns. these social settings lead to rethinking territory and understand the changes and continuities from and between the positions of the actors that contribute to maintain or transform the structure of social space.
Somatic cell mutations in cerebral tissue of cattle affected by bovine spongiform encephalopathy  [PDF]
Matteo Busconi, Corrado Fogher
Agricultural Sciences (AS) , 2010, DOI: 10.4236/as.2010.11005
Abstract: In animals the prion disease includes sheep and goat scrapie and the bovine spongiform encephalopathy (BSE). While several polymorphisms of the prion (PRNP) gene have been identified in sheep and some of them have been associated with susceptibility to scrapie, few mutations are reported in cattle and no correlation with BSE have been demonstrated. Genetic screening for mutants in the PRNP gene of 21 BSE positive animals by direct sequencing of the amplified gene, using DNA extracted from brain as template, confirmed that only few polymorphisms are present. However DNA molecules cloned and sequenced from the population of fragments considering a total of 90 clones from 9 BSE positive and 70 clones from 7 BSE negative animals, gave a highly significant differences in the frequency of mutations (p = 0.01). The high frequency and type of variants found cannot be explained only with misincorporation error of the Taq polymerase. Interestingly one of the mutations found in the BSE positive animals (F209S) corresponds to a mutant that causes a familiar form of prion disease in humans (F198S). These data can be explained with the presence of somatic mutations modifying the PRNP gene in single brain cells.
Related Party Transactions and Financial Performance: Is There a Correlation? Empirical Evidence from Italian Listed Companies  [PDF]
Matteo Pozzoli, Marco Venuti
Open Journal of Accounting (OJAcct) , 2014, DOI: 10.4236/ojacct.2014.31004
Abstract: Related party transactions (RPTs) can have a dual nature. On one hand, these transactions may be considered sound business exchanges, fulfilling the economic needs of the company. On the other hand, RPTs may be considered a mechanism to exploit company resources as a consequence of existing conflicting interests. This study takes into account both aspects. Specifically, this paper investigates the relation between RPTs and companies’ financial performance, and thus verifies whether there is an association between these kinds of transactions and earnings management. This study examines the existence of this relation as regards the universe of Italian listed companies for the period of 2008-2011. According to the related data analysis, the research concludes that related party transactions and companies’ financial performance results are not correlated and that there is no evidence of a cause-effect relation. Therefore, related party transactions do not appear—thanks also to the existence of control mechanisms—a means used by Italian listed companies to realize earnings management, especially earnings smoothing.
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