979 resultados para Table etiquette
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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AIM: The purpose of this study was to examine the effect of intensive practice in table-tennis on perceptual, decision-making and motor-systems. Groups of elite (HL=11), intermediate (LL=6) and control (CC=11) performed tasks of different levels. METHODS: All subjects underwent to reaction-time-test and response-time-test consisting of a pointing task to targets placed at distinct distances (15 and 25-cm) on the right and left sides. The ball speed test in forehand and backhand condition just for HL and LL group. RESULTS: In CC group reaction time was higher compared to HL (P< 0.05) group. In the response-time-test, there was a significant main effect of distance (P< 0.0001) and the tennis-table expertise (P= 0.011). In the ball speed test the HL were constantly faster compared to the LL in both forehand stroke (P< 0.0001) and backhand stroke (P< 0.0001). Overall, the forehand stroke was significantly faster than the backhand stroke. CONCLUSION: We can conclude that table-tennis-players have shorter response-times than non-athletes and the tasks of reaction-time and response-time are incapable to distinguish the performance of well-trained table tennis players of the intermediate player, but the ball speed test seems be able to do it.
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Pós-graduação em Planejamento e Análise de Políticas Públicas - FCHS
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Table of Contents
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An ecological life table for eggs and nymphs of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) was constructed with data obtained from orange orchards (Citrus sinensis Osbeck) in 2 regions of the State of Sao Paulo, over 4 generations in the period from XI-2006 to V-2007, comprising spring, summer, and fall seasons. Young growing shoots with D. citri eggs present were identified, and live individuals were counted until adult emergence. No predatory arthropods were observed in association with D. citri eggs and nymphs during the study. The mean parasitism of fourth- and fifth-instar nymphs by Tamarixia radiata Waterston (Hymenoptera: Eulophidae) was 2.3%. The durations of the egg-adult period were similar among the 4 generations, ranging from 18.0 to 24.7 d (at mean temperatures ranging from 21.6 to 26.0 degrees C) and followed the temperature requirement models obtained in the laboratory for D. citri. However, survival from the egg to the adult stage for the same period varied considerably from 1.7 to 21.4%; the highest mortalities were observed in the egg and small nymphal (first- to thirdinstar) stages, which were considered to be key phases for population growth of the pest.
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The objective of this work was to evaluate extreme water table depths in a watershed, using methods for geographical spatial data analysis. Groundwater spatio-temporal dynamics was evaluated in an outcrop of the Guarani Aquifer System. Water table depths were estimated from monitoring of water levels in 23 piezometers and time series modeling available from April 2004 to April 2011. For generation of spatial scenarios, geostatistical techniques were used, which incorporated into the prediction ancillary information related to the geomorphological patterns of the watershed, using a digital elevation model. This procedure improved estimates, due to the high correlation between water levels and elevation, and aggregated physical sense to predictions. The scenarios showed differences regarding the extreme levels - too deep or too shallow ones - and can subsidize water planning, efficient water use, and sustainable water management in the watershed.
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Stochastic methods based on time-series modeling combined with geostatistics can be useful tools to describe the variability of water-table levels in time and space and to account for uncertainty. Monitoring water-level networks can give information about the dynamic of the aquifer domain in both dimensions. Time-series modeling is an elegant way to treat monitoring data without the complexity of physical mechanistic models. Time-series model predictions can be interpolated spatially, with the spatial differences in water-table dynamics determined by the spatial variation in the system properties and the temporal variation driven by the dynamics of the inputs into the system. An integration of stochastic methods is presented, based on time-series modeling and geostatistics as a framework to predict water levels for decision making in groundwater management and land-use planning. The methodology is applied in a case study in a Guarani Aquifer System (GAS) outcrop area located in the southeastern part of Brazil. Communication of results in a clear and understandable form, via simulated scenarios, is discussed as an alternative, when translating scientific knowledge into applications of stochastic hydrogeology in large aquifers with limited monitoring network coverage like the GAS.
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L'epatite E è una malattia umana con caratteristiche di epatite acuta, causata da un ssRNA virus (HEV). Nel 1997, HEV è stato identificato per la prima volta nei suini (SwHEV). In seguito, diverse evidenze, tra cui la vicinanza genetica tra ceppi umani e suini, suggerirono la trasmissione zoonotica del virus. Nella presente tesi, l’identificazione di SwHEV è stata condotta mediante ricerca di porzioni di genoma virale attraverso RT-PCR. Dal 2011 al 2013, sono stati analizzati 343 campioni fecali (da 19 allevamenti) e 70 bili (da 2 macelli) prelevati da altrettanti suini, in diverse Regioni italiane. E’ stato inoltre condotto uno studio retrospettivo su 78 feci (da 3 allevamenti) raccolte nel 2000. Il virus è stato identificato nel 24,5% e 19,2% delle feci raccolte rispettivamente nel 2011-2013 e nel 2000. Nessuna bile è risultata positiva. Mediante sequenziamento del genoma intero di uno dei virus identificati, è stata condotta l’analisi filogenetica per valutarne il grado di correlazione con alti ceppi suini e umani. La presenza di HEV è stata valutata lungo la filiera di produzione suina, dal macello al punto vendita. Trentaquattro campioni di feci, fegato e muscolo sono stati raccolti in un macello da altrettanti suini sani (età:6-7 mesi). Quattordici feci e 2 fegati, sono risultati positivi per HEV. Sono state prelevate 129 salsicce sia allo stabilimento di trasformazione sia alla vendita, ma nessuna è risultata positiva. La presenza di HEV è stata valutata anche nelle salsicce di fegato, fresche e secche, acquistate presso una macelleria. Il genoma virale è stato rilevato nel 22,2% delle salsicce fresche e nel 4,3 % di quelle secche ma la vitalità del virus non è stata dimostrata. In conclusione, lo studio condotto ha confermato l’ampia circolazione di HEV nei suini e la possibile contaminazione dei prodotti carnei derivati, confermando la necessità di una continua sorveglianza.
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Tema di questo lavoro sono i cedimenti indotti dallo scavo di gallerie superficiali in terreni coesivi sotto falda. In questi casi la velocità di avanzamento dello scavo v e la permeabilità del mezzo k influenzano molto l'evoluzione della consolidazione. Le ipotesi di risposta non drenata o drenata del mezzo saturo, comunemente adottate, sono valide solo per rapporto v/k estremamente alto o basso. Nei casi intermedi, analisi numeriche accoppiate che tengano conto del processo di consolidazione durante lo scavo sono indispensabili. Ciò nonostante, queste sono molto rare in letteratura viste le notevoli difficoltà teoriche e numeriche ad esse associate. Proprio per non incrementare ulteriormente tali difficoltà, si è deciso di adottare modelli costitutivi semplici quali: il modello elastico perfettamente plastico con criterio di resistenza alla Mohr Coulomb e il Modified Cam Clay. Dopo un' introduzione sulla risposta del terreno nell'intorno dello scavo al variare del modello costitutivo, è stato svolto uno studio parametrico del processo di consolidazione. Ci si è, successivamente, concentrati sulla capacità dei tre modelli costitutivi di predire l'andamento dei cedimenti, mediante confronto con le soluzioni empiriche proposte in letteratura. Infine, sono state effettuate una serie di simulazioni 3D accoppiate passo-passo con il programma agli elementi finiti Abaqus al variare della permeabilità del mezzo e del rivestimento installato, supposto infinitamente permeabile o impermeabile. È emerso che per v/k<100 o v/k>100000 non è necessario esaminare nel dettaglio la dipendenza dal tempo della risposta del suolo e si possono ottenere risultati affidabili assumendo condizioni drenate o non drenate, rispettivamente. Nei casi intermedi, invece, le condizioni sono da ritenersi transienti e l'unico modo per effettuare correttamente le analisi dei cedimenti e lo studio della stabilità del fronte è mediante analisi numeriche 3D idromeccaniche accoppiate.
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Among the many cell types that may prove useful to regenerative medicine, mounting evidence suggests that human term placenta-derived cells will join the list of significant contributors. In making new cell therapy-based strategies a clinical reality, it is fundamental that no a priori claims are made regarding which cell source is preferable for a particular therapeutic application. Rather, ongoing comparisons of the potentiality and characteristics of cells from different sources should be made to promote constant improvement in cell therapies, and such comparisons will likely show that individually tailored cells can address disease-specific clinical needs. The principle underlying such an approach is resistance to the notion that comprehensive characterization of any cell type has been achieved, neither in terms of phenotype nor risks-to-benefits ratio. Tailoring cell therapy approaches to specific conditions also requires an understanding of basic disease mechanisms and close collaboration between translational researchers and clinicians, to identify current needs and shortcomings in existing treatments. To this end, the international workshop entitled "Placenta-derived stem cells for treatment of inflammatory diseases: moving toward clinical application" was held in Brescia, Italy, in March 2009, and aimed to harness an understanding of basic inflammatory mechanisms inherent in human diseases with updated findings regarding biological and therapeutic properties of human placenta-derived cells, with particular emphasis on their potential for treating inflammatory diseases. Finally, steps required to allow their future clinical application according to regulatory aspects including good manufacturing practice (GMP) were also considered. In September 2009, the International Placenta Stem Cell Society (IPLASS) was founded to help strengthen the research network in this field.
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The most widely accepted treatment for comminuted fractures of the radial head is either the excision or open reduction and internal fixation. The purpose of the present study is to evaluate the value of an 'on-table' reconstruction technique in severely comminuted fractures of the radial head. In this study, two patients with a Mason type-III and four patients with a Mason type-IV radial-head fracture were treated with 'on-table' reconstruction and fixation using low-profile mini-plates. After a mean follow-up of 112 months (47-154 months), the mean elbow motion was 0-6-141 degrees extension flexion with 79 degrees of pronation and 70 degrees of supination. The mean Broberg and Morrey functional rating score was 97.0 points, the Mayo Elbow Performance Index was 99.2 points and the mean Disabilities of the Arm, Shoulder, and Hand (DASH) Outcome Measure score was 1.94 points. One patient had symptoms of degenerative changes, with a slight joint-space narrowing. There were no radiographic signs of devitalisation at final examination. Comminuted fractures of the radial head, which would otherwise require excision, can be successfully treated with an 'on-table' reconstruction technique.