Surface heterogeneities cause differential heating that can generate mesoscale convective boundaries, sometimes leading to cloud development and enhanced localized precipitation. A preferred cloud pattern has been identified across Maryland and the Delmarva Peninsula region from 1998-2006 through the detection of cumuliform clouds on days when synoptic-scale forcing is weak. Hourly visible Geostationary Operational Environmental Satellite (GOES) imagery data are used to identify convective cloud masses. This allows quantitative description of the frequency and spatiotemporal extent of the clouds, helping forecasters gain insight into when and where they are likely to develop. Despite the inability to determine the underlying causes of the distinct cloud pattern, primarily due to the complex land cover, results indicate that the land receives significantly higher average total cloud cover than the Chesapeake Bay with Delaware receiving the highest average total cloud cover per state. Average total precipitation amounts follow this same trend on synoptically-weak days.

No description available.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-05-11T20:13:53Z No. of bitstreams: 1 MarcioAndreCostaBarbosa_DISSERT.pdf: 1460647 bytes, checksum: d228d971ce5deae0635151eb659cad40 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-05-19T20:10:58Z (GMT) No. of bitstreams: 1 MarcioAndreCostaBarbosa_DISSERT.pdf: 1460647 bytes, checksum: d228d971ce5deae0635151eb659cad40 (MD5) / Made available in DSpace on 2016-05-19T20:10:58Z (GMT). No. of bitstreams: 1 MarcioAndreCostaBarbosa_DISSERT.pdf: 1460647 bytes, checksum: d228d971ce5deae0635151eb659cad40 (MD5) Previous issue date: 2015-09-18 / Neste TCC tratamos de um t?pico muito b?sico por?m essencial em Matem?tica, a saber: Fun??es. Muitos alunos entram na universidade se perguntando: Para que serve fun??o? Nesse TCC procuramos nos adiantar a essa pergunta e tentar mostrar que fun??es aparecem de maneira t?o natural que foi preciso um nome para caracterizar essa associa??o dos elementos de dois conjuntos. Depois que essa defini??o foi estabelecida, aproveitamos para apresentar e formalizar alguns conceitos que as fun??es possuem, como: Crescimento/decrescimento, injetividade, etc. / In this TCC the deal with a underlying but essential topic of Mathematics, namely: Functions. Many students start their course in the University asking: Why do we need functions? With that in mind we try to antecipate to this question and we try to show that functions come up so naturally that a name was needed to express that association which exists between the elements of two sets. After this definition was established, we present and formalize some other concepts that functions might have, as: an interview of ascendence/descendence, 1-1, etc.

Emotionally disconnected employees, about 70% in the U.S., do not experience positive affect at work, are disengaged, and not creative. The purpose of this quantitative quasi-experimental study was to investigate the effects of leaders' endorsement of idiosyncratic workplace fun (independent variable) and organizational playfulness climate (independent variable) on organizational creativity (dependent variable). Complexity-based theoretical perspectives on organizational creativity framed this quantitative study. Data were collected via three survey instruments at two data points from 7 project teams, divided into two experimental groups, at 6 companies in northwestern United States. One group received an intervention for 1 month. Pearson's correlation analysis showed no significant relationships between leaders' endorsement of idiosyncratic workplace fun and organizational playfulness climate with organizational creativity. Repeated measures analysis of variance revealed that the 2 experimental groups did not differ significantly in terms of their creativity when team leaders endorsed idiosyncratic workplace fun and when project teams worked in an organizational playfulness climate. Bivariate regression analysis and multiple regression analysis showed that leaders' endorsement of idiosyncratic workplace fun and organizational playfulness climate did not predict organizational creativity, neither individually nor collectively. Although the study's findings cannot be used to affect social change, the examination of the relationships between leaders' endorsement of idiosyncratic workplace fun, organizational playfulness climate, and organizational creativity in the future might yield important insights about the mechanisms facilitating the emergence of organizational creativity at companies.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-06-21T19:35:53Z No. of bitstreams: 1 AluisioIgorRegoFontes_TESE.pdf: 3702181 bytes, checksum: ebee4d30550394d35c706823dc2169ae (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-06-22T21:45:56Z (GMT) No. of bitstreams: 1 AluisioIgorRegoFontes_TESE.pdf: 3702181 bytes, checksum: ebee4d30550394d35c706823dc2169ae (MD5) / Made available in DSpace on 2016-06-22T21:45:56Z (GMT). No. of bitstreams: 1 AluisioIgorRegoFontes_TESE.pdf: 3702181 bytes, checksum: ebee4d30550394d35c706823dc2169ae (MD5) Previous issue date: 2015-09-11 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / A extra??o de informa??es de sinais aleat?rios ? um problema frequente e relevante em muitas aplica??es de processamento digital de sinais. Nos ?ltimos anos, diferentes m?todos t?m sido utilizados para a parametriza??o de sinais ou obten??o de descritores eficientes de suas caracter?sticas. Quando os sinais aleat?rios possuem propriedades es- tat?sticas cicloestacion?rias, as Fun??es de Autocorrela??o C?clica (CAF) e a Densidade Espectral C?clica (SCD) podem ser utilizadas na obten??o de informa??es cicloestacion?- rias de segunda ordem. Entretanto, em sinais n?o-gaussianos, as informa??es cicloestaci- on?rias de segunda ordem s?o fracas e, neste caso a an?lise cicloestacion?ria deve ocorrer sobre informa??es estat?sticas de ordem superior. Este trabalho prop?e uma nova ferra- menta matem?tica para a an?lise cicloestacion?ria de ordem superior baseada na fun??o de correntropia. Especificamente, a teoria de an?lise cicloestacion?ria ? revisitada sob um enfoque de teoria da informa??o, e as Fun??es de Correntropia C?clica (CCF) e Densidade Espectral de Correntropia C?clica (CCSD) s?o definidas. ? comprovado analiticamente que a CCF cont?m informa??es de momentos cicloestacion?rios de segunda ordem e de ordem superior, sendo uma generaliza??o da CAF. O desempenho dessas novas fun??es, na extra??o de caracter?sticas cicloestacion?rias de ordem superior, ? analisado em um cen?rio de comunica??o sem fio com ru?do n?o-gaussiano. / Information extraction is a frequent and relevant problem in digital signal processing. In the past few years, different methods have been utilized for the parameterization of signals and the achievement of efficient descriptors. When the signals possess statistical cyclostationary properties, the Cyclic Autocorrelation Function (CAF) and the Spectral Cyclic Density (SCD) can be used to extract second-order cyclostationary information. However, second-order cyclostationary information is poor in nongaussian signals, as the cyclostationary analysis in this case should comprise higher-order statistical information. This paper proposes a new mathematical tool for the higher-order cyclostationary analysis based on the correntropy function. Specifically, the cyclostationary analysis is revisited focusing on the information theory, while the Cyclic Correntropy Function (CCF) and Cyclic Correntropy Spectral Density (CCSD) are also defined. Besides, it is analytically proven that the CCF contains information regarding second- and higher-order cyclostationary moments, being a generalization of the CAF. The performance of the aforementioned new functions in the extraction of higher-order cyclostationary characteristics is analyzed in a wireless communication system where nongaussian noise exists.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-12-15T18:09:01Z No. of bitstreams: 1 TalesViniciusRodriguesDeOliveiraCamara_DISSERT.pdf: 3587261 bytes, checksum: ddffd176ad921074a281b50e904134f5 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-12-28T19:00:56Z (GMT) No. of bitstreams: 1 TalesViniciusRodriguesDeOliveiraCamara_DISSERT.pdf: 3587261 bytes, checksum: ddffd176ad921074a281b50e904134f5 (MD5) / Made available in DSpace on 2016-12-28T19:00:57Z (GMT). No. of bitstreams: 1 TalesViniciusRodriguesDeOliveiraCamara_DISSERT.pdf: 3587261 bytes, checksum: ddffd176ad921074a281b50e904134f5 (MD5) Previous issue date: 2016-04-25 / T?cnicas de Classifica??o Autom?tica de Modula??o (AMC) t?m sido utilizadas por sistemas modernos de comunica??o para otimizar o uso do espectro e com isso aumen- tar as taxas de transmiss?o de dados. No processo de AMC, v?rias arquiteturas podem ser utilizadas para retirar informa??o e avaliar caracter?sticas do sinal modulado em um canal. Uma grande parte dessas arquiteturas s?o constru?das utilizando como base a ci- cloestacionariedade. A an?lise cicloestacion?ria ? realizada por meio das ferramentas: Fun??o de Autocorrela??o C?clica (CAF) e Fun??o Densidade Espectral C?clica (SCD). Esta ultima particularmente, ? utilizada para observar as caracter?sticas cicloestacion?rias de diferentes sinais, as quais s?o chamadas de assinaturas. Embora tenha v?rias aplica- ??es bem sucedidas no ?mbito de AMC, a cicloestacionariedade possui restri??es pois a CAF e SCD s?o limitadas ? an?lise estat?stica de segunda ordem, devido ao uso da correla??o com cerne de sua express?o. Com o objetivo de generalizar a avalia??o da cicloestacionariedade sobre infinitos momentos estat?sticos de um sinal, surgem Fun??o de Autocorrentropia C?clica (CCAF) e a Fun??o Densidade Espectral de Correntropia C?clica (CCSD). Tais fun??es s?o fundamentadas no c?lculo da correntropia. Neste tra- balho a CCSD ser? investigada quanto capacidade de gerar assinaturas para diferentes modula??es e seu potencial de uso em AMC ser? avaliado. / The steady growth in the use of wireless communication systems has contributed to finding new ways to exploit the maximum capacity of use spectrum. In this context, cognitive radios appear as an appropriate option able to offer an efficient use of the channel, ensuring greater bandwidth to users. In the scenario of cognitive radios, cyclostationary analysis techniques have shown to be quite effective in extracting features that can be used in the spectrum sensing. Such features called cyclostationary signatures are generated by the spectral correlation density function (SCD) and can be directly associated with the type of modulation used on the channel. Architectures for spectrum sensing using SCD has good performed when used in AWGN channels. However, recent studies show that the tool doesn?t have a good performance in the extraction of signal characteristics contaminated with impulsive noise (Outlier), because it is limited to second order statistical analysis. In order to generalize the SCD cyclostationary analysis for endless statistical moments, arise the function correntropy cyclic spectral density (CCSD) This work proposes a spectrum sensing architecture using CCSD, which is applied to the extraction cyclostationary features from digital modulations: ASK, FSK, BPSK, QPSK and MSK. The sensing architecture proposed is evaluated in various parameters: different sensing thresholds, change of SNR levels of a AWGN channel, different kernel sizes (s) from CCSD and extraction of cyclostationary features from modulations contaminated with noise impulsive. The results of this study demonstrate the effectiveness of the proposed architecture.

Darbo objektas: mokinių malonų dalyvavimą įtakojantys veiksniai kūno kultūros pamokoje. Baigiamojo darbo tyrimo tikslas: nustatyti Kauno miesto 9-12 klasių mokinių malonų dalyvavimą įtakojančius veiksnius per kūno kultūros pamoką. Baigiamojo darbo tyrimo uždaviniai: 1. Nustatyti vidinius pasitenkinimo ir nepasitenkinimo kūno kultūros pamoka veiksnius 9-12 klasių mokinių tarpe pagal jų lytį. 2. Nustatyti išorinius pasitenkinimo ir nepasitenkinimo kūno kultūros pamoka veiksnius 9-12 klasių mokinių tarpe pagal jų lytį. Išvados: 1. Nustatyta, kad berniukų ir mergaičių dažniausiai nurodytas vidinis pasitenkinimo veiksnys, įtakojantis jų malonų dalyvavimą kūno kultūros pamokose, buvo galimybė išbandyti save ir įvertinti savo jėgas. Vidinio nepasitenkinimo veiksnys, labiausiai įtakojantis tiriamųjų (mergaičių ir berniukų) malonų dalyvavimą kūno kultūros pamokų metu buvo galimybė užsiimti mėgstama veikla ir galimybė save realizuoti. 2. Nustatyta, kad didžiausią malonumą kūno kultūros pamokų metu abiejų lyčių mokiniams sukelia išoriniai veiksniai, kurie susiję su rungtyniavimu su kitais. Vaikinams statistiškai reikšmingai dažniau nei merginoms (p<0,05), laimėjimo pojūtis įtakojo jų malonų dalyvavimą kūno kultūros pamokose; vaikinai statistiškai reikšmingai dažniau nei merginos (p<0,05) nurodė, kad išorinis pasitenkinimo veiksnys, įtakojantis maloniam dalyvavimui kūno kultūros pamokose yra galimybė pasirodyti geresniu už kitus. Išorinio nepasitenkinimo veiksniai įtakojantys... [toliau žr. visą tekstą] / Objective: students' pleasant participation influencing factors in physical education. The aim of the study: to determine the factors which influence the pleasant participation of 9th – 12th grade students in physical education classes in Kaunas. Goals: 1. To define the intrinsic - achievement and intrinsic – nonachievement factors in physical education based on the sex of the 9th-12th grade students. 2. To define the extrinsic – achievement and extrinsic nonachievement in physical education based on the sex of the 9th-12th grade students. Conclusion: 1. It was determined that intrinsic - achievement factor mostly shown by girls and boys influences their fun participation in physical education classes and enables them to test themselves and their skills. Intrinsic nonachievement factor mostly influencing girls’ and boys' participation in physical education classes is the opportunity to engage in favourite activities and prove themselves. 2. It was defined that the biggest enjoyment for students of both sexes during physical education classes is caused by external factors that relate to competition with others. According to statistics, for boys more than girls (p<0,05) the notion of winning influences their enjoyable participation in physical education; boys statistically more often than girls (p<0,05) have stated that the external factor of enjoyment that influences their participation in physical education is the opportunity to perform better than others. The external... [to full text]

Made available in DSpace on 2015-04-14T14:12:28Z (GMT). No. of bitstreams: 1 347555.pdf: 662586 bytes, checksum: 21ed78470fd8486c9f23f30d9292ed78 (MD5) Previous issue date: 2005-12-09 / Este trabalho teve como objetivo investigar quais s?o as fun??es elementares utilizadas em disciplinas dos cursos de Administra??o de Empresas e Ci?ncias Cont?beis. Foram consideradas fun??es elementares: Fun??es Polinomiais do 1? e 2? graus, Fun??o Exponencial, Fun??o Logar?tmica e Fun??es Trigonom?tricas. Analisou-se de que forma acontecem as contextualiza??es e quais os pr?-requisitos matem?ticos considerados importantes pelos professores. O processo investigativo foi divido em tr?s etapas: na primeira, foram analisados depoimentos de professores, na segunda, foram analisadas entrevistas de alunos desses cursos, que j? tinham cursado as disciplinas de Matem?tica, e a terceira etapa foi a an?lise dos programas oficiais das disciplinas mais citadas, pelos professores e alunos. Tamb?m foram analisados quais os pr?-requisitos dos conte?dos de Matem?tica que se fazem necess?rios para o desenvolvimento das disciplinas afins. Os resultados obtidos confirmam que o conte?do de fun??es ? muito utilizado no desenvolvimento dessas disciplinas. Tamb?m foram detectadas as maiores defici?ncias, por parte dos alunos, em rela??o aos pr?-requisitos de conte?dos da Matem?tica.

Submitted by PPG Pediatria e Sa?de da Crian?a (pediatria-pg@pucrs.br) on 2017-08-23T20:19:40Z No. of bitstreams: 1 Tese MClaraversaofinal.pdf: 1140193 bytes, checksum: 36fe50dffe28e4c997ea7042cbe7267f (MD5) / Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2017-08-24T12:24:03Z (GMT) No. of bitstreams: 1 Tese MClaraversaofinal.pdf: 1140193 bytes, checksum: 36fe50dffe28e4c997ea7042cbe7267f (MD5) / Made available in DSpace on 2017-08-24T12:28:33Z (GMT). No. of bitstreams: 1 Tese MClaraversaofinal.pdf: 1140193 bytes, checksum: 36fe50dffe28e4c997ea7042cbe7267f (MD5) Previous issue date: 2017-03-31 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Introduction: Cystic fibrosis is an autosomal recessive genetic disorder characterized mainly by obstruction and inflammation of the airways leading to the chronic establishment of microorganisms. Acute infections (exacerbations) and/or chronic colonization lead to a progressive decline in lung function that leads to respiratory failure, the main cause of death among these individuals. Despite advances in survival, aspects related to infections still need to be reviewed. Thus, the main objective of the study was to evaluate the impact of different bacterial colonizations on nutritional status, lung function and clinical severity in patients with cystic fibrosis (CF). Methods: This is a retrospective cohort study that included patients with a confirmed diagnosis of CF, aged > 3 years and presenting complete data in a reference database of cystic fibrosis and / or available medical records. Anthropometric information (weight and height for the purpose of calculating BMI) and nutritional status, clinical severity data, colonization of airway secretions in addition to lung function (FEV1, FVC and FEV1/FVC). All the data collected were the annual evaluation of these subjects, between the period from 2009 to 2013. For statistical purposes, the Friedman test (Dunn's post-test) and the Mann Whitney U test were used. Results: We included 68 patients with CF out of a total of 80 who are regularly followed by the service, with 57.4% being male with a mean age of 10.35 years at baseline. During the five-year follow-up (mean of 3.55 years), nutritional status (p = 0.743) and clinical severity score (p = 0.235) remained stable. There was a statistically significant reduction of FEV1/FVC ratio over the follow-up (from year 2 to year 3 and year 2 to year 5; p <0.05). The most frequent colonizations were oxacillin-sensitive Staphylococcus aureus (MSSA) (29.8-46.3%), followed by non-mucoid Pseudomonas aeruginosa (PA) (8.5-19.4%), Burkholderia Cepacia Complex CBC) (4.9-21.3%), mucoid PA (2,4-6,5 %) and oxacilina/meticilin-resistent Staphylococcus aureus (MRSA) (2,4- 16,1%). Patients who were colonized throughout the study by MRSA (p = 0.040) had a reduction in FEV1 (p = 0.004) and FVC (p = 0.005) in year 5 compared to those not colonized by this bacteria. In addition, individuals with non-mucoid BP had a reduction (p = 0.007) in FVC. Conclusions: Our findings demonstrate that bacterial colonization by oxacilina/meticilin-resistent Staphylococcus aureus and non-mucoid Pseudomonas aeruginosa is related to worsening lung function (FEV1 and FVC). However, the impact of the different colonizations on BMI and on the clinical severity of Shwachman-Kulczycki score over the 5 years was not observed. Key words: Microbiology, nutritional status, respiratory function tests, prognosis, cystic fibrosis. / Introdu??o: A fibrose c?stica ? uma doen?a gen?tica autoss?mica recessiva, caracterizada principalmente por obstru??o e inflama??o das vias a?reas que leva a instala??o cr?nica de microrganismos. As infec??es agudas e/ou coloniza??es cr?nicas levam a um progressivo decl?nio da fun??o pulmonar que evolui para fal?ncia respirat?ria, principal causa de morte entre estes indiv?duos. Apesar dos avan?os alcan?ados na sobrevida, aspectos relacionados a infec??es ainda necessitam ser revisados. Assim, o objetivo principal do estudo foi avaliar o impacto de diferentes coloniza??es bacterianas sobre o estado nutricional, fun??o pulmonar e gravidade cl?nica em pacientes com fibrose c?stica (FC). M?todos: Trata-se de um estudo de coorte, retrospectivo onde foram inclu?dos pacientes com diagn?stico confirmado de FC, com idade > 3anos e que apresentassem os dados completos em um banco de dados de um servi?o de refer?ncia em fibrose c?stica e/ou dispon?veis nos prontu?rios m?dicos. Foram coletadas informa??es antropom?tricas (peso e estatura para fins de c?lculo de IMC) e verifica??o do estado nutricional, dados cl?nicos de gravidade, coloniza??es presentes nas secre??es das vias a?reas al?m da fun??o pulmonar (VEF1, CVF e VEF1/ CVF). Todos os dados coletados se tratavam da avalia??o anual desses sujeitos, entre o per?odo de 2009 a 2013. Para fins estat?sticos, utilizou-se o teste de Friedman (p?s-teste de Dunn?s) e o teste U de Mann Whitney. Resultados: Foram inclu?dos 68 pacientes com FC de um total de 80 que s?o acompanhados regularmente pelo servi?o, sendo 57,4 % do sexo masculino com idade m?dia de 10,35 anos no in?cio do estudo. Ao longo do seguimento de cinco anos (m?dia de 3,55 anos) o estado nutricional (p=0,743) e o escore de gravidade cl?nica (p=0,235) permaneceram est?veis. Houve uma redu??o estatisticamente significativa da rela??o VEF1/CVF ao longo do acompanhamento (do ano 2 para o ano 3 e do ano 2 para o ano 5; p<0,05). As coloniza??es mais frequentes foram a Staphylococcus aureus sens?vel a Oxacilina (MSSA) (29,8-46,3%), seguidas da Pseudomonas aeruginosa (PA) n?o muc?ide (8,5-19,4%), Complexo Burkholderia Cepacia (CBC) (4,9-21,3%), PA mucoide (2,4-6,5 %) e Staphylococcus aureus resistente a oxacilina (2,4- 16,1%). Os pacientes que foram colonizados ao longo do estudo por MRSA (p=0,040) apresentaram uma redu??o do VEF1 (p=0,004) e da CVF (p=0,005) no ano 5, em compara??o aos n?o colonizados por essa bact?ria. Al?m disso, os indiv?duos com PA n?o mucoide apresentaram redu??o (p=0,007) da CVF. Conclus?es: Nossos achados demonstram que a coloniza??o bacteriana por Staphylococcus aureus resistente a oxacilina e por Pseudomonas aeruginosa n?o muc?ide est? relacionada a piora na fun??o pulmonar (VEF1 e CVF). Todavia, n?o foi observado impacto das diferentes coloniza??es sobre o IMC e sobre o escore de gravidade cl?nica de Shwachman-Kulczycki ao longo dos 5 anos. Palavras-chave: Microbiologia, estado nutricional, testes de fun??o respirat?ria, progn?stico, fibrose c?stica.

Submitted by PPG Psicologia (psicologia-pg@pucrs.br) on 2018-01-15T18:40:45Z No. of bitstreams: 1 JANICE_DA_ROSA_PUREZA_TES.pdf: 1966676 bytes, checksum: ada988d004bc86bfcf8180ed94737143 (MD5) / Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2018-01-26T11:59:21Z (GMT) No. of bitstreams: 1 JANICE_DA_ROSA_PUREZA_TES.pdf: 1966676 bytes, checksum: ada988d004bc86bfcf8180ed94737143 (MD5) / Made available in DSpace on 2018-01-26T12:03:49Z (GMT). No. of bitstreams: 1 JANICE_DA_ROSA_PUREZA_TES.pdf: 1966676 bytes, checksum: ada988d004bc86bfcf8180ed94737143 (MD5) Previous issue date: 2017-03-09 / In the context of neuropsychology, the study of executive functions (EF) has been gaining space, especially when it comes to understanding how executive processes develop during childhood. The EF play an important role in initial school processes and are an underlying aspect of learning and achieving good academic performance. Consequently, intervention programs have been developed to stimulate executive skills in the school setting. However, few studies focus on psychoeducation and effective training for teachers to stimulate the EF in school. The objectives of this thesis were to identify EF subcomponents and their development in children from 6 to 12 years of age, and to create and analyze the effects of an early and preventive neuropsychological intervention program. The program focused on training educators to stimulate the EF in 2nd and 3rd grade children. The first study explored which factors, as well as which cognitive, executive, and linguistic components are subjacent to performance scores in executive tasks. It also analyzed how children with ages from 6 to 12 years old develop such executive components. The final sample has 109 children with average age of 10.32 years old (SD=1.79) who were assessed through the following EF tasks: verbal fluency, Hayling Sentence Completion Test for children (HSCT-C), narrative discourse (ND), and Bells cancellation test. The results identified a model with three factors: (1) Factor 1: verbal executive component (language, working memory in the discursive process, verbal initiation, and planning); (2) Factor 2: cognitive flexibility and processing speed; and (3) Factor 3: inhibitory control. Age seemed to influence the development of the verbal executive factor, but not the development of cognitive flexibility, suggesting a gradual evolution for the latter. There was an increment in inhibitory control among younger children in comparison to older ones. These results are important to support the elaboration of effective intervention measures that stimulate the EF during childhood, both in clinical and in school settings. The second study presented the development process and content validity evidences of the CENA ? early and preventive neuropsychological intervention training program for educators focused on EF and attention. The development of this program involved three different stages: research and theoretical assumptions (neuropsychology and education), construction of the program and brainstorming sessions with the authors, and expert referee analysis. The CENA was suitable with respect to its objectives, structure, language, and method, presenting evidences of content validity. The third 10 study examined the effect of the CENA on 2nd and 3rd grade children. The final sample had 19 teachers (EG=10 and CG=9) and 64 children (EG=32 and CG=32) who were assessed before and after the completion of the program. In the post-intervention analysis, there was an increase in performance of tasks involving arithmetic skills favoring children in the experimental group, indicating a transfer effect to the school setting. Some EF tasks were better performed by children in the control group. After the intervention, teachers in the experimental group showed greater appropriation of the contents addressed by the program. They also presented an improved ability to observe the executive and behavioral functioning of the children, especially with respect to concepts worked during the intervention (planning, inhibitory control, and working memory). The results of the three studies, in an integrated way, contribute to the advancement of scientific knowledge at the interface of neuropsychology and education. They provide insight about both the development of EF subcomponents during childhood and the elaboration of an innovative early and preventive intervention program. Such program went through a rigorous validation and construction process and yielded results that suggest effectiveness. For future studies, the authors suggest the analysis of development curves of executive components with larger samples, and with association of verbal and visuospatial tasks. It is also recommended that the CENA be adapted to other school grades, especially in public schools. The CENA should benefit from a longer period and more systematic methods for execution and evaluation, providing an effective contribution of neuropsychology to education. / No atual contexto da neuropsicologia, as fun??es executivas (FE) vem sendo cada vez mais investigadas com o intuito de melhor compreender como se desenvolvem os processos executivos na inf?ncia. As FE possuem um importante papel nos processos escolares iniciais, sendo consideradas fundamentais para a aprendizagem e bom desempenho acad?mico. Em consequ?ncia, programas de interven??o v?m sendo desenvolvidos com o objetivo de estimular as habilidades executivas no contexto educacional. No entanto, ainda s?o escassos os estudos que tenham por meta a psicoeduca??o e a capacita??o efetiva de professores para estimula??o das FE em ?mbito escolar. A presente tese teve como objetivo caracterizar subcomponentes de FE no que tange ao seu desenvolvimento em crian?as de 6 a 12 anos, assim como construir e verificar efeitos de um programa de interven??o neuropsicol?gica precoce-preventiva de capacita??o de educadores para estimula??o das FE em crian?as do 2? e 3? ano do Ensino Fundamental (EF). No primeiro estudo, buscou-se investigar quais fatores e componentes cognitivos, executivos e ling??sticos est?o subjacentes aos escores de desempenho em tarefas executivas e verificar como crian?as de 6 a 12 anos desenvolvem estes componentes executivos. A amostra final foi composta por 109 crian?as com idade m?dia de 10,32 (DP=1,79) que foram avaliadas em tarefas de flu?ncia verbal, teste Hayling-Inf, tarefa de discurso narrativo oral (DNO) e teste de cancelamento dos Sinos.Os resultados identificaram um modelo de tr?s fatores, caracterizado por: (1) Fator 1: componente executivo verbal (linguagem, mem?ria de trabalho no processamento discursivo, inicia??o verbal e planejamento); (2) Fator 2: flexibilidade cognitiva e velocidade de processamento e (3) Fator 3: controle inibit?rio. Observou-se que a idade pareceu influenciar no desenvolvimento do fator executivo verbal e n?o influenciou no fator flexibilidade cognitiva e velocidade de processamento, sugerindo uma evolu??o mais gradativa deste ?ltimo fator. Observou-se um incremento no controle inibit?rio nas crian?as menores quando comparadas com as crian?as de mais idade, Considera-se a import?ncia destes resultados para subsidiar a elabora??o de medidas de interven??o para estimula??o das FE na inf?ncia em ?mbito cl?nico e escolar. O Estudo 2 apresentou o processo de desenvolvimento e evid?ncia de validade de conte?do do CENA ? Programa de interven??o neuropsicol?gica precoce-preventiva para capacita??o de educadores com ?nfase em FE e aten??o. O desenvolvimento 7 do programa envolveu tr?s etapas distintas: pesquisa a pressupostos te?ricos (neuropsicologia e educa??o); constru??o do programa e brainstorming entre autores e an?lise de ju?zes. O CENA mostrou adequa??o em rela??o aos seus objetivos, estrutura, linguagem e m?todo, apresentando evid?ncia de validade de conte?do. O Estudo 3 teve como objetivo verificar o efeito do CENA em crian?as do 2? e 3? ano do EF. A amostra final foi composta 19 professores (GE=10 e GC=9) e 64 crian?as (GE=32 e GC=32), que foram avaliadas antes e ap?s o t?rmino do programa. Na an?lise p?s interven??o, verificou-se um incremento no desempenho em tarefa que envolve habilidades aritm?ticas favorecendo as crian?as do grupo experimental, indicando um efeito de transfer?ncia para uma situa??o de contexto escolar. Em algumas medidas de FE, foi observado um melhor desempenho das crian?as do grupo controle. Ap?s a interven??o, foi constatada uma maior apropria??o das professoras do grupo experimental sobre os temas trabalhados no programa. Verificou-se que as professoras do grupo experimental demonstraram maior observa??o sobre o funcionamento executivo e comportamental das crian?as, em especial, no que se referiu aos construtos trabalhados na interven??o (planejamento, controle inibit?rio e mem?ria de trabalho). Observa-se que os resultados dos tr?s estudos, de forma integrada, contribuem para o avan?o do conhecimento cient?fico na interface da neuropsicologia e educa??o, propiciando um maior conhecimento acerca do desenvolvimento dos subcomponentes de FE na inf?ncia, bem como, em rela??o ao desenvolvimento de um programa de interven??o precoce-preventiva inovador, caracterizado por um processo de constru??o e valida??o rigoroso, e com alguns resultados sugestivos de efetividade. Sugere-se, para futuros estudos, a an?lise de curvas de desenvolvimento de componentes executivos com amostras maiores e com associa??o de tarefas verbais e visuoespaciais. Recomenda-se, ainda, a adapta??o e implementa??o do CENA para os demais anos escolares, em especial, de escolas p?blicas,com maior per?odo de tempo e m?todos mais sistematizados para sua execu??o e avalia??o, oportunizando uma contribui??o efetiva da neuropsicologia para a ?rea da educa??o.