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Search Results: 1 - 10 of 71360 matches for " Maria Carminati;Giacomelli "
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Especia??o de cobre e chumbo em sedimento do Rio Tubar?o (SC) pelo método Tessier
Lima, Maria Carminati;Giacomelli, Maria Bertilia O.;Stüpp, Volnei;Roberge, Fernanda D.;Barrera, Pilar Bermejo;
Química Nova , 2001, DOI: 10.1590/S0100-40422001000600005
Abstract: the sequential extraction procedure proposed by tessier and total digestion were applied for the analysis of sediment samples from tubar?o river. the recoveries were between 93.5 and 102.5% for cu and 99.2 and 111% for pb. the precision was tipically better than 6% for cu and 3% for pb. comparison of the values obtained for the total digest with the sum of the extracted fractions showed that there were no significant losses in the extraction steps so that the method can be used for the monitoring availability and mobility of these analytes. according to ten points of sampling, was possible to determined the average of labiles phases (fractions 1 and 4) for pb and cu: 33.70% and 18.18%, respectively; and the inert phases (fraction 5- residual): 66.30% for pb and 81.82% for cu.
Especia o de cobre e chumbo em sedimento do Rio Tubar o (SC) pelo método Tessier
Lima Maria Carminati,Giacomelli Maria Bertilia O.,Stüpp Volnei,Roberge Fernanda D.
Química Nova , 2001,
Abstract: The sequential extraction procedure proposed by Tessier and total digestion were applied for the analysis of sediment samples from Tubar o River. The recoveries were between 93.5 and 102.5% for Cu and 99.2 and 111% for Pb. The precision was tipically better than 6% for Cu and 3% for Pb. Comparison of the values obtained for the total digest with the sum of the extracted fractions showed that there were no significant losses in the extraction steps so that the method can be used for the monitoring availability and mobility of these analytes. According to ten points of sampling, was possible to determined the average of labiles phases (fractions 1 and 4) for Pb and Cu: 33.70% and 18.18%, respectively; and the inert phases (fraction 5- residual): 66.30% for Pb and 81.82% for Cu.
Effects of Speaker Emotional Facial Expression and Listener Age on Incremental Sentence Processing
Maria Nella Carminati, Pia Knoeferle
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0072559
Abstract: We report two visual-world eye-tracking experiments that investigated how and with which time course emotional information from a speaker's face affects younger (N = 32, Mean age = 23) and older (N = 32, Mean age = 64) listeners’ visual attention and language comprehension as they processed emotional sentences in a visual context. The age manipulation tested predictions by socio-emotional selectivity theory of a positivity effect in older adults. After viewing the emotional face of a speaker (happy or sad) on a computer display, participants were presented simultaneously with two pictures depicting opposite-valence events (positive and negative; IAPS database) while they listened to a sentence referring to one of the events. Participants' eye fixations on the pictures while processing the sentence were increased when the speaker's face was (vs. wasn't) emotionally congruent with the sentence. The enhancement occurred from the early stages of referential disambiguation and was modulated by age. For the older adults it was more pronounced with positive faces, and for the younger ones with negative faces. These findings demonstrate for the first time that emotional facial expressions, similarly to previously-studied speaker cues such as eye gaze and gestures, are rapidly integrated into sentence processing. They also provide new evidence for positivity effects in older adults during situated sentence processing.
Preferential Inspection of Recent Real-World Events Over Future Events: Evidence from Eye Tracking during Spoken Sentence Comprehension
Pia Knoeferle,Maria Nella Carminati,Dato Abashidze
Frontiers in Psychology , 2011, DOI: 10.3389/fpsyg.2011.00376
Abstract: Eye-tracking findings suggest people prefer to ground their spoken language comprehension by focusing on recently seen events more than anticipating future events: When the verb in NP1-VERB-ADV-NP2 sentences was referentially ambiguous between a recently depicted and an equally plausible future clipart action, listeners fixated the target of the recent action more often at the verb than the object that hadn’t yet been acted upon. We examined whether this inspection preference generalizes to real-world events, and whether it is (vs. isn’t) modulated by how often people see recent and future events acted out. In a first eye-tracking study, the experimenter performed an action (e.g., sugaring pancakes), and then a spoken sentence either referred to that action or to an equally plausible future action (e.g., sugaring strawberries). At the verb, people more often inspected the pancakes (the recent target) than the strawberries (the future target), thus replicating the recent-event preference with these real-world actions. Adverb tense, indicating a future versus past event, had no effect on participants’ visual attention. In a second study we increased the frequency of future actions such that participants saw 50/50 future and recent actions. During the verb people mostly inspected the recent action target, but subsequently they began to rely on tense, and anticipated the future target more often for future than past tense adverbs. A corpus study showed that the verbs and adverbs indicating past versus future actions were equally frequent, suggesting long-term frequency biases did not cause the recent-event preference. Thus, (a) recent real-world actions can rapidly influence comprehension (as indexed by eye gaze to objects), and (b) people prefer to first inspect a recent action target (vs. an object that will soon be acted upon), even when past and future actions occur with equal frequency. A simple frequency-of-experience account cannot accommodate these findings.
Dissipative scale effects in strain-gradient plasticity: the case of simple shear
Maria Chiricotto,Lorenzo Giacomelli,Giuseppe Tomassetti
Mathematics , 2015,
Abstract: We analyze dissipative scale effects within a one-dimensional theory, developed in [L. Anand et al. (2005) J. Mech. Phys. Solids 53], which describes plastic flow in a thin strip undergoing simple shear. We give a variational characterization of the {\emph{ yield (shear) stress}} --- the threshold for the inset of plastic flow --- and we use this characterization, together with results from [M. Amar et al. (2011) J. Math. Anal. Appl. 397], to obtain an explicit relation between the yield stress and the height of the strip. The relation we obtain confirms that thinner specimens are stronger, in the sense that they display higher yield stress.
Padroniza??o do diagnóstico de Blastocystis hominis por diferentes técnicas de colora??o
Eymael, Dayane;Schuh, Graziela Maria;Tavares, Rejane Giacomelli;
Revista da Sociedade Brasileira de Medicina Tropical , 2010, DOI: 10.1590/S0037-86822010000300019
Abstract: introduction: the present study was carried out from march to may 2008, with the aim of evaluating the effectiveness of different techniques for diagnosing blastocystis hominis in a sample of the population attended at the biomedicine laboratory of feevale university, novo hamburgo, rio grande do sul. methods: on hundred feces samples from children and adults were evaluated. after collection, the samples were subjected to the techniques of spontaneous sedimentation (hpj), sedimentation in formalin-ether (ritchie) and staining by means of gram and may-grünwald-giemsa (mgg). results: the presence of blastocystis hominis was observed in 40 samples, when staining techniques were used (mgg and gram), while sedimentation techniques were less efficient (32 positive samples using the ritchie technique and 20 positive samples using the hpj technique). conclusions: our results demonstrate that hpj was less efficient than the other methods, thus indicating the need to include laboratory techniques that enable parasite identification on a routine basis.
Manifesta??es culturais e corpóreas do enfermeiro na sua prática gerencial
Prochnow, Adelina Giacomelli;Leite, Josete Luzia;Trevizan, Maria Auxiliadora;
Texto & Contexto - Enfermagem , 2006, DOI: 10.1590/S0104-07072006000300009
Abstract: the objective of this study is to denote managerial specificities, analyzed according to the culture interpretative theory. these specificities are expressed as cultural and corporal manifestations in the scope of the nursing management in a university hospital. it is a descriptive study of qualitative and interpretative character, having interviewed twenty two nurses in their management functions. the corporal manifestations of the managing nurse arise as culture manifestations of the human being as a manager and a body in synergy with many elements as a result of a body that gets excited or feels emotion when managing. this study contributes to the advance of knowledge and to the capacity of confronting organizational uncertainties, within the complexity of the hospital environment.
Manifesta es culturais e corpóreas do enfermeiro na sua prática gerencial
Adelina Giacomelli Prochnow,Josete Luzia Leite,Maria Auxiliadora Trevizan
Texto & Contexto - Enfermagem , 2006,
Abstract: Este estudio tuvo como objetivo denotar las especificidades administrativas, analizadas según la Teoría Interpretativa de la Cultura, que se expresan como las manifestaciones culturales en el ámbito de la gerencia del enfermero en un Hospital Universitario. Se trata de un estudio interpretativo de naturaleza cualitativa a través de entrevistas a veintidos enfermeros durante el ejerciciode de la gerencia. Las manifestaciones corporales del enfermero administrados aparecem como expresiones culturales del ser humano en cuanto ser gerente en sinergía con los diferentes elemento como fruto de un cuerpo que se emociona con el ejercicio de la administración. Contribuye para el progreso en el conocimiento y la capacidad de confrontación de las incertidumbres en los espacios organizacionales, así como en la complejidad del ambiente hospitalario.
Cortical excitability in patients with focal epilepsy: a study with high frequency repetitive transcranial magnetic stimulation (rTMS)
Francesca Gilio,Elisa Iacovelli,Maria Gabriele,Elena Giacomelli
Dialogues in Philosophy, Mental and Neuro Sciences , 2008,
Abstract: Epileptogenesis involves an increase in excitatory synaptic strength in the brain in a manner similar to synaptic potentiation. In the present study we investigated the mechanisms of short-term synaptic potentiation in patients with focal epilepsy by using 5 Hz repetitive transcranial magnetic stimulation (rTMS), a non invasive neurophysiological technique able to investigate the mechanisms of synaptic plasticity in humans. Ten patients with focal idiopathic cortical epilepsy were studied. 5 Hz-rTMS (10 stimuli-trains, 120% of motor threshold, RMT) was delivered over the first dorsal interosseus (FDI) motor area of both (affected and unaffected) hemispheres. Changes in the motor evoked potential (MEP) size in the FDI muscle during the trains and the RMT were measured and compared between the hemispheres. 5 Hz-rTMS was also delivered in a group of healthy subjects over both hemispheres. 5 Hz-rTMS in patients elicited a reduced MEP facilitation compared to normal subjects. The reduced MEP amplitude was more evident in the affected hemisphere than in the unaffected hemisphere. RMT in the affected hemisphere was higher than in the unaffected hemisphere and in healthy subjects. Our findings showing a decreased response to 5 Hz-rTMS over the affected hemisphere, differently from the expected results suggest a reduced cortical excitability in epileptic patients. We hypothesize an altered balance between excitatory and inhibitory circuits in epileptic patients under chronic therapy.
Status and first results of the ANTARES neutrino telescope
G. Carminati
Physics , 2009,
Abstract: The ANTARES (Astronomy with a Neutrino Telescope and Abyss environmental RESearch) Collaboration constructed and deployed the world's largest operational underwater neutrino telescope, optimised for the detection of Cherenkov light produced by neutrino-induced muons. The detector has an effective area of about 0.1 square km and it is a first step towards a kilometric scale detector. The detector consists of a three-dimensional array of 884 photomultiplier tubes, arranged in 12 lines anchored at a depth of 2475 m in the Mediterranean Sea, 40 km offshore from Toulon (France). An additional instrumented line is used for environmental monitoring and for neutrino acoustic detection R&D. ANTARES is taking data with its full twelve line configuration since May 2008 and had been also doing so for more than a year before a five and ten line setups. First results obtained with the 5 line setup are presented.
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