Magistrinis darbas skirtas kalbos ir komunikacijos sutrikimams diagnozuoti. Tiriamas švietimo reformos laikotarpis. Statistiniais metodais nustatyta mokinių kalbos ir komunikacijos sutrikimų plitimas. Darbe surinkta daug informacijos. Atlikta statistinė analizė. Numatyti prognostiniai sprendimai ir išvados. / A magistracy task designed to diagnose learner's language embarrassment. Fluctuation was researched in time, population and territory aspects. According to other embarrasment hierarchy, language embarrassment is over 57 %. Two structures have been analysed: special and integrated education. Fluctuation stages had been taken measurement in statistcal scales: language embarrassment is low in special schools - in integrated. I measured population in nominal scale. The biggest population was researched by territory principle in Kaunas, Šiauliai and Vilnius areas. A lot of valuable information was collected in the work. Education inguiries is topical and partically useful. According exploratory results was provided predictional decision, recomendations.

Having a job occupies an important place in person’s life. At losing a job the person becomes an inferior citizen of the Republic of Lithuania. Thus it becomes important to learn. The object of research – the attitudes of educators and other social groups towards the development of continuous professional training and its improvement. The aim of the research is to reveal the peculiarities of professional training and requalification and their improvement as well as the assumption of lifetime learning in the context of village community. The theoretical part reviews and interprets the scientific literature, documents of educational system are analysed. The research results displayed as follows: - The necessity to improve qualification among the teachers of the province is formulated as the background to sustain the work positions however does not have deeper intrinsic motifs resultant. The need for requalification is understood by the unemployed in the village as an essential condition in order to get a job or a possibility to sustain it. - The operating structures and systems are designed for teachers as well as the unemployed in order to provide them with possibilities to improve qualification or to retrain. Thus neither working experience nor higher education among teachers reveal the fact that inner need for lifetime learning exists. Even respondents who have a university education do not think that once received their education can do enough for the whole span of their... [to full text]

Šiuolaikinis švietimas remiasi kryptinga veikla, skirta mokinio įgūdžių, gebėjimų ir vertybinių nuostatų formavimui, mokinio žinių ir kompetencijos plėtotei. Nors jau dešimtmetį yra vykdoma Lietuvos švietimo pertvarka, tačiau įvairūs tyrimai rodo, kad nesėkmingo mokymosi lygis švietimo sistemoje yra aukštas. Pati nenoro mokytis problema tapo globaline pradėjus įgyvendinti privalomą mokymą nuo 7 iki 16 metų. Mokymosi motyvacijos stoka glaudžiai susijusi su mokyklos nelankymu, kurso kartojimu, dėl ko kiekviena pasaulio valstybė patiria didelius nuostolius. Žmogus, „iškritęs“ iš švietimo sistemos, negali gauti įstatymų nustatyta tvarka išduoto dokumento, patvirtinančio asmens mokymosi rezultatus, todėl toks asmuo negali sėkmingai įsilieti į darbo rinką. Neišsilavinusiam žmogui yra sunkiau dalyvauti visuomeniniame gyvenime. Iškyla tikimybė būti atstumtam, kas sąlygoja psichologines asmens problemas, socialinį ir finansinį nesaugumą. Todėl kiekvienos šalies švietimo sistemos tikslas yra siekti, kad jos visuomenės nariai būrų išsilavinę – įgytų asmens tam tikro lygio brandą liudijančią kompetenciją, žinias, įgūdžius, gebėjimus ir vertybines nuostatas. Tai sąlygoja atvirą ir demokratišką visuomenę. Lietuvos ir užsienio autoriai pabrėžia, kad mokymosi motyvacija yra vienas svarbiausių mokymosi sėkmės komponentų. Taip pat pabrėžia vidinio poreikio mokytis svarbą. Be tokio poreikio mokytis prasmingas mokymasis neįmanomas. Dalis pedagogų ir psichologų tyrė vaikų ir paauglių mokymosi... [toliau žr. visą tekstą] / Motivation is a complex and dynamic phenomena. It is a psychological process, which regulates the activity of a personality and his/her relations with the environment. Motivation is closely related to the motives which influence a person’s behaviour and activity. In order to educate desirable behaviour it is necessary to eliminate negative causes. The 4th and 5th-form pupils may be influenced by different motives, groups of motives or separate motives. Possible ways to strengthen learning motivation are expedient organization of learning process according to the pupils’ needs; formation of possibilities to establish the aims of the activities; expedient evaluation of pupils” achievements; improvement of the relationship among pupils, parents and teachers; strengthening of the internal and external learning motivation according to the pupils’ main learning motives: cognition, self-expression, future, communication, prestige and external stimuli. To summarize the results of the survey it can be stated that learning motives of the 5th-form pupils are various. The most conspicuous are future and cognition motives, less important are prestige, self-expression and communication motives and minor motives are external stimuli. Formation of learning motives depends on various factors. According to the survey, pupils in the 5th form face a lot of new things: pupils’ social environment changes. Learning process also changes. The 5th-form pupils take greater responsibility for the... [to full text]

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Crack initiation and propagation in the bladed disks of aero-engines caused by high-cycle fatigue under cyclic loads could result in the breakdown of the engines if not detected at an early stage. Although a number of fault detection methods have been reported in the literature, it still remains very challenging to develop a reliable online technique to accurately diagnose defects in bladed disks. One of the main challenges is to characterize signals contaminated by noises. These noises caused by very dynamic engine operation environment. This work presents a new technique for engine bladed disk crack detection, which utilizes advanced analysis of clearance and time-of-arrival signals acquired from blade tip sensors. This technique involves two stages of signal processing: 1) signal pre-processing for noise elimination from predetermined causes; and 2) signal post-processing for characterizing crack initiation and location. Experimental results from the spin rig test were used to validate technique predictions.

Made available in DSpace on 2014-06-11T19:35:45Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-12-17Bitstream added on 2014-06-13T20:26:51Z : No. of bitstreams: 1 alves_ves_dr_botfca.pdf: 2262774 bytes, checksum: 3b0f1eb2b3fbc61c2dac52e6a9121ff2 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O manejo integrado de pragas em fruticultura tem incentivado o uso do controle biológico com o intuito de reduzir a densidade das moscas-das-frutas. Para tanto, este trabalho acompanhou a dinâmica populacional das espécies de moscas-das-frutas numa área de intersecção de pomar cítrico variedade Valência com mata secundária, através do levantamento populacional antes e depois da liberação do parasitóide exótico Diachasmimorpha longicaudata (Hymenoptera: Braconidae). O estudo foi conduzido de janeiro de 2008 a janeiro de 2010, procedendo-se coleta quinzenalmente de adultos de moscasdas- frutas por armadilhas McPhail a base de proteína hidrolisada de milho, na Fazenda São Gabriel, distrito Vitoriana, município de Botucatu, SP. Durante realização do experimento, o pomar recebeu tratamento fitossanitário, mas as liberações dos parasitóides foram sempre realizadas num intervalo de cinco dias após a última aplicação de defensivos agrícolas e cinco dias antes da pulverização seguinte. Os insetos capturados foram levados para o Laboratório de Entomologia (UNESP), Botucatu, SP para triagem e as moscas foram devidamente etiquetadas, com os dados da coleta, para posterior identificação. Até o mês de fevereiro de 2009 o levantamento das moscas-das-frutas foi através de 20 armadilhas, sendo dez em pomar e dez na mata do entorno. A partir de março de 2009 foram acrescentadas cinco armadilhas numa nova área de mata mantendo-se até o fim do experimento 25 armadilhas. No período de abril a outubro de 2009 foram liberados 560.000 parasitóides D. longicaudata, com quatro a oito dias de idade, na mata secundária, provenientes do Laboratório de Radioentomologia do Centro de Energia Nuclear na Agricultura (CENA – USP). Foram estabelecidos dez pontos amostrais e para cada ponto foram liberados cerca de 4.000 indivíduos. Coletou-se 13.683 tefritídeos sendo 6.967 exemplares... / The integrated pest management in fruit growing has stimulated the use of biological control in order to reduce the density of fruit flies. To do so, this work observed the population dynamics of fruit flies species in a citric orchard intersection area, Valência variety, with secondary forest, by means of population survey before and after the release of the exotic parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae). The study was carried out from January 2008 to January 2010, with adult collections being performed every 15 days in hydrolyzed corn protein based McPhail traps at Fazenda São Gabriel, Vitoriana district, municipality of Botucatu, SP. While performing the experiment, the orchard was given phytosanitary treatment, but parasitoids releases were always carried out five days after the last application of agricultural defensives and five days before the following pulverization. The captured insects were taken to the Entomology Laboratory (UNESP), Botucatu, SP in order to be screened and the flies were properly labeled with collection data for further identification. Up to February 2009, 20 traps were used for the fruit flies survey, ten in the orchard and ten in the surrounding forest. From March 2009 on, 5 traps were added into a new vegetation area, 25 traps being kept until the end of the experiment. From April to October 2009, 560,000 D. longicaudata parasitoids, four to eight days old, were released in the secondary forest, coming from the Radioentomology Laboratory of the Nuclear Energy Center in Agriculture (CENA – USP). Ten sample sites were set and about... (Complete abstract click electronic access below)

Orientador: Chang Hung Kiang / Banca: Everton de Oliveira / Banca: Holger Weiss / Banca: Luis Tadeu Furlan / Banca: Miguel Alfaro Soto / Resumo: Vazamentos acidentais de derivados de petróleo podem ocorrer em refinarias, dutos, postos de serviços e no transporte rodoviário ou ferroviário, ocasionando diversos impactos ambientais. Este trabalho teve por objetivo avaliar o comportamento de uma pluma de fase livre de querosene, presente em uma área industrial no município de Paulínia (SP), e estudar a recuperação de querosene em resposta à variação sazonal das chuvas. A área de estudo apresentou seis litotipos de origem fluvial, destacando-se a presença de paleocanais preenchidos por areias grossas. Verificou-se que as grandes variações nos níveis d'água proporcionam o fenômeno de trapeamento/destrapeamento do querosene, afetando diretamente o processo de remediação. A área apresenta altas taxas de recarga, variando de 370 mm a 550 mm em um ano. Após 40 meses de remediação, em que se procedeu ao bombeamento de oito poços, foram recuperados 176.000 litros de querosene. O período de maior recuperação foi de outubro a janeiro. Cálculos efetuados a partir dos índices físicos do solo, das propriedades físicas do querosene e da espessura observada de fase livre, em dezembro de 2008, permitiram estimar um volume remanescente recuperável de 192.000 litros de querosene no subsolo / Abstract: Accidental spills of petroleum products may occur in refineries, pipelines, and service stations, as well as during roadway and railway transportation, causing environmental damages. The main objective of this thesis is to evaluate the behavior of a kerosene free phase plume in an industrial area of the municipality of Paulinia, and evaluate the role of water table fluctuation on hydrocarbon recovery. Six lithofacies deposited in fluvial environment were identified, in particular paleochannels filled by coarse grain sands. An important finding was large water table fluctuation induce entrapment/release of kerosene, greatly affecting aquifer remediation. The studied aquifer underwent high recharge rates of 370 mm to 550 mm per year. Throughout 40 months of remediation, in which eight submersible pumps were employed, 176.000 liters of kerosene were recovered. The largest period of kerosene recovery was in the interval comprising October to January. Calculations using soil physical indexes, physical properties of kerosene and the observed thickness of free phase, as measured in December of 2008, allowed to estimate a volume of 192.000 liters of recoverable remnant kerosene yet in the ground / Doutor

The tri-gate FET has been hailed as the biggest breakthrough in transistor technology in the last 20 years. The increase in device performance (faster switching, less delay, improved short channel effects, etc.) coupled with the reduction in device size, would allow for huge gains in the electronics industry. This thesis aims to not only investigate the validity of these claims, but also how random dopant fluctuation (RDF) affects the tri-gates performance and how to curb these issues. In order to achieve this, an atomistic 3-D device simulation program was utilized in order to capture the many quantum mechanical effects that devices of this size experience and compare the results against a similar planar device. We see the tri-gate FET does indeed perform extremely well compared to its planar counterpart, but both devices experience a great deal of fluctuations due to the random dopants in the device. In order to limit the RDF effects a variety of methods were implemented including increasing doping concentrations in the channel, source, and drain regions, varying the source/drain junction depths, and varying the source/drain contact workfunction. The results showed that increasing doping concentrations in order to reduce the amount of space the dopants had to diffuse did not reduce the randomness experienced by the devices, but rather the randomness increased. The dopant fluctuation was insensitive to the varying of the workfunction, but was found to decrease with an increase in junction depth in the source/drain regions. With randomness in the tri-gate reduced, the overall performance should increase when used in ICs, where consistency in device characteristics is essential.

Submitted by Ana Maria Fiscina Sampaio (fiscina@bahia.fiocruz.br) on 2014-07-18T16:05:02Z No. of bitstreams: 2 Orlando Marcos Farias de Sousa, Estudo da infecção... 2013.pdf: 3775180 bytes, checksum: 1eb7cab3c5ef08df5a81ec9219afacbc (MD5) Orlando Marcos Farias de Sousa, Estudo da infecção... 2013.pdf: 3775180 bytes, checksum: 1eb7cab3c5ef08df5a81ec9219afacbc (MD5) / Made available in DSpace on 2014-07-18T16:05:02Z (GMT). No. of bitstreams: 2 Orlando Marcos Farias de Sousa, Estudo da infecção... 2013.pdf: 3775180 bytes, checksum: 1eb7cab3c5ef08df5a81ec9219afacbc (MD5) Orlando Marcos Farias de Sousa, Estudo da infecção... 2013.pdf: 3775180 bytes, checksum: 1eb7cab3c5ef08df5a81ec9219afacbc (MD5) Previous issue date: 2014 / Fundação Oswaldo Cruz. Centro de Pesquisa Gonçalo Moniz. Salvador, BA, Brasil / No município de Camaçari, considerado área endêmica para leishmaniose visceral (LV), foi realizado estudo objetivando determinar a influência das variáveis climáticas sobre a flutuação mensal da população flebotomínica e a taxa de infecção natural desses flebotomíneos por Leishmania infantum. Para o levantamento entomológico foram realizadas capturas sistemáticas de flebotomíneos utilizando armadilhas tipo HP, tanto no peri como no intradomicílio. As residências foram selecionadas em bairros pertencentes a zona urbana orla e zona urbana sede, onde casos humanos de LV no foram registrados município. As capturas foram realizadas entre dezembro de 2011 e novembro de 2012. A relação entre pluviosidade, umidade relativa do ar e temperatura e a proporção de flebotomíneos foi calculada utilizando o coeficiente de Spearman. Para o estudo da infecção natural dos flebotomíneos foi utilizada a técnica de qPCR. Os pools avaliados foram compostos por flebotomíneos da mesma espécie, distribuídos pelas residências, ás quais foram investigadas no intra e peridomicilio. Além disso, os pools foram distribuídos de acordo com os 12 meses de coleta. Os resultados mostraram que a fauna flebotomínica é diversificada, sendo composta por quatro gêneros com ocorrência de cinco espécies. Espécimes de interesse epidemiológico foram encontrados com predominância para a espécie Lutzomyia (Lutzomyia) longipalpis (98,4%). Foi observada correlação positiva entre a densidade de flebotomíneos e a variável pluviosidade na zona urbana sede durante o período de coleta (r = 0,66, p <0,02). A correlação entre as variáveis bioclimáticas e a densidade dos flebotomíneos também foi avaliada em bairros que se destacaram individualmente pela densidade de flebotomíneos, sendo encontrado correlação positiva para a variável umidade relativa do ar (r = 0,58 p <0,04) e associação similar para a variável precipitação durante o período de coleta (r = 0,67 p <0,01). As análises moleculares mostraram infecção natural por Leishmania infantum em 10 pools de 78 de pools de Lutzomyia longipalpis analisados. Estes achados aliados à presença do vetor competente da LV, Lutzomyia longipalpis em elevada proporção, e os estudos das variáveis climáticas alertam para a necessidade de vigilância epidemiológica e constituem em ferramenta útil para o planejamento de medidas de controle contra LV no município de Camaçari. / In Camaçari city, considered an endemic area for visceral leishmaniasis (VL), the study was conducted aiming to determine the climatic variables influence on the sandflies monthly fluctuation and the natural infection rates by Leishmania infantum in the sandflies. The entomological inventory was performed with sandflies systematic captures using HP traps, both in peridomiciliar well as in intradomiciliar. The residences were selected in districts belonging to the coastline urban zone and headquarters urban zone, where human cases of VL were recorded in the city. Captures were performed between December 2011 and November 2012. The correlation between the number of sandflies and the different climatic variables was calculated using Spearman's coefficient. The sandfly natural infection was evaluated by qPCR technique. Pools reviews were composed by sand flies of the same species, distributed among households, which were investigated in peridomiciliare and intradomiciliare. Additionally, pools were distributed according to the 12-month sampling. The results showed that the phlebotomine fauna is diverse, consisting of four genera and five species. Specimens of epidemiological interest were found predominantly for Lutzomyia (Lutzomyia) longipalpis (98.4%). In addition, a positive correlation between sandfly density and pluviosity at headquarters urban zone was observed during the collection period. (r = 0.66, p <0.02). The correlation between bioclimatic variables and density of sandflies was also evaluated in neighborhoods that stood out individually by the sandfly density. A positive correlation was observed for the variable relative humidity during the collection period (r = 0.58 p <0.04) and similar association for precipitation variable in the same period (r = 0.67 p <0.01). Molecular analysis showed natural infection by Leishmania infantum in 10 pools of 78 pools of Lutzomyia Longipalpis analyzed. In summary, these findings combined with the presence of VL competent vector, Lutzomyia Longipalpis in high density, and studies of climate variables warn of the need for epidemiological surveillance and constitute a useful tool for planning control measures against VL in Camaçari. Keis

[pt] O modelo de índice de difusão linear é empregado para projeção da conjuntura econômica. Aplicando técnicas multivariadas, resume um grande número de variáveis em poucos fatores que se tornam bons preditores. Este estudo busca entender quais delas apresentam o melhor poder preditivo e utiliza as nessa metodologia utiliza para comparar com o da literatura. Concluiu-se que o primeiro obteve resultados mais satisfatórios em relação ao segundo. / [en] The diffusion linear index model is used to forecast the economic conditions. Applying multivariate techniques, summarizes a large number of variables in a few factors that make them good predictors. This study seeks to understand which ones have the best predictive power and uses this methodology to compare against the literature. The conclusion is that the first presents a better performance than the second.