Morphological aspects of injection-molded polypropylene with metallic pigments

Publicado em "ANTEC 2013 - Proceedings of the 71st Annual Technical Conference & Exhibition"Innovation, design freedom, cost and weight reduction are some factors for the replacement of metals by plastics. Plastics continue to offer attractive solutions for design engineers. The metallic effect obtained by incorporation of metal particles in polymers by injection molding has the advantage of eliminating post-processing techniques such as painting or metallization. Moreover, it reduces production costs and time to get a superior part quality. Nevertheless, undesired defects in the final appearance of parts are common, such as flow lines and weld lines. These defects occur due to inhomogeneous orientation and anisotropy of the metal particles. Very few studies are reporting the influence of metallic particles on the morphology development of PP parts. Therefore, this study is focused on the production of parts made of PP/metallic pigments (aluminum, bronze and copper) by injection molding in order to understand the influence of metallic particles on the aesthetic and morphological properties of the parts.ADI -American Dysautonomia Institut

Spectral Bandwidth and WEC Performance Assessment

This paper investigates the dependency of wave energy conversion on the spectral bandwidth of sea-states. To this aim, the performance of an axisymmetrical Wave Energy Converter is assessed in the frequency domain by using a stochastic model in two far different wave climates (Portugal and North Sea) both represented by more than 23000 energy spectral densities obtained from measurements. The correlation between the performance and various bandwidth parameters found in the literature is observed. Then, refined methods for predicting the long-term converted wave energy based on wave statistics including spectral bandwidth are compared to more common procedures and conclusions are drawn

Item response theory analysis of the recoded Internet Gaming Disorder Scale-Short-Form (IGDS9-SF)

Based on the nine criteria for Internet gaming disorder (IGD) in DSM-5, the Internet Gaming Disorder Scale 9-Short Form (IGDS9-SF; Pontes and Griffiths 2015) is the most widely used questionnaire for assessing IGD. The present study examined support for the unidimensional factor structure of the instrument, with a group of 868 adolescent and adult gamers from the USA, with criteria recoded as present or absent. The two-parameter logistic model (2PLM) was used to examine the item response theory properties of the criteria included in the measure. Confirmatory factor analysis supported the one-factor model. The 2PLM analysis indicated that all the criteria were strong discriminators of high and low latent IGD. Furthermore, the items measured more of the GAD dimension and with more precision from around +2 SD from the mean trait level. The implications of the findings for interpreting the IGDS9-SF scores for clinical practice are discussed

Aboriginal and Non-Aboriginal Students Learn About Natural Health Products from Different Information Sources

Natural health products (NHPs) include naturally derived botanical and nonbotanical products. Past research indicates a high prevalence of NHPs use amongst adults in the United States and Canada but does not clearly characterize NHPs use amongst students, ethnic variations of such use, or how users learn about NHPs. We hypothesize that there is a difference between Aboriginal and non-Aboriginal students in how they learn about NHPs. To investigate this question, we conducted a cross-sectional study at First Nations University of Canada and the University of Regina, Saskatchewan, Canada, during the fall of 2011. Aboriginal (n=214) and non-Aboriginal (n=749) students participated in the 28 question survey. Our results indicate that Aboriginal students who use NHPs are found in all age groups, are mostly female, are smokers and nonsmokers, and learn about NHPs from Elders and healers. Compared to nonAboriginal students, Aboriginal students rely significantly less on alternative and conventional health providers, electronic media, print media, and advertising as their sources of information about NHPs. Thus, Aboriginal students use Elders or healers as a primary source of information to learn about NHPs, as compared to non-Aboriginal students. Future work should investigate the role of Elder traditional educators to convey NHPs information directed specifically to Aboriginal university students

Assessment of the Italian version of the Internet Disorder Scale (IDS-15)

Much research has focused on the validation of psychometric tools assessing Internet addiction. One of the newest measures is the Internet Disorder Scale (IDS-15) based on the modified IGD criteria outlined in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). This study aimed at investigating the psychometric properties of the Italian version of the IDS-15 by examining the construct and the concurrent and the criterion-related validity and by identifying the taxonomy and the patterns of Internet users. A sample of 471 participants (Mage = 24.72 years, SD = 8.66; 256 males) was recruited from secondary schools, universities, and gaming halls. Confirmatory factor analyses supported the four-dimensional second-order structure and the three levels of the measurement invariance across gender. The reliability and the validity of the scale were confirmed, and the LPAs provided four classes of Internet users on the basis of the scores obtained in all four dimensions of the scale. The psychometric robustness of the Italian version of the IDS-15 was clearly demonstrated. Cross-cultural research should expand and generalize the present findings

Arranjo de plantas no desempenho do híbrido de tomate para processamento industrial BRS Sena.

Objetivou-se com este trabalho avaliar diferentes arranjos de plantas para o híbrido de tomate para processamento industrial BRS Sena, considerando duas épocas de transplante: mês de fevereiro (ano de 2012) e mês de abril (ano de 2013).Resumo 1

Prospecto analítico da cadeia produtiva do palmito de pupunheira (Bactris gasipaes) no Estado do Pará.

Publicado também: FRAZÃO, D. A. C.; HOMMA, A. K. O; VIÉGAS, I. de J. M. (Ed.). Contribuição ao desenvolvimento da fruticultura na Amazônia. Belém, PA: Embrapa Amazônia Oriental, 2006. p. 639-644

Avaliação em campo de diferentes formulações para o controle da mancha bacteriana em tomate para processamento.

O presente estudo teve como objetivo avaliar a eficiência de diferentes produtos registrados para a cultura do tomate como opções para o manejo da mancha bacteriana.Trabalho

Resistência em campo de híbridos comerciais e experimentais de tomate para processamento a mancha bacteriana.

Ensaio com o objetivo de avaliar o nível de resistência à mancha bacteriana em diferentes materiais de tomate para processamento, sendo seis comerciais (AP 533, C 901, HM 7889, Heinz 9553, Heinz 9992 e U 20006) e trê experimentais: (HF1-170/ Embrapa, BA 5446 e E 8755/ BHN).Trabalho 8

Inclusão: um olhar sobre a prática da língua brasileira de sinais - LIBRAS nas escolas do campo

ThisworkCompletionofcourse covers thefollowingtopic: atthepracticeofBrazilianSignLanguage whichwilltalkaboutthe 'deaf' and - 'rural Libras Inclusion. in education', A schoolsofthefield, whichwillbeanalyzed thisworkisthepracticeofPoundswiththedeafstudentsactuallyoccurs look in in schoolsfield. Thereforethemethodologypresentedbethroughan interview, held in theschoolfield, with a teacherwhoteaches in a multisseriateroom, wheretheyweremade some questionssuch as: Istheteacherpreparedtomeetdeafstudents? The teachermadecoursePounds, orinterested in doing? Thereis a SignLanguageinterpreter in theclassroom? The schoolhaspedagogicalstructuretoworkwithpeoplewhohave a disability? Inclusion in schoolsandespecially in theclassroomhappens? Thusinitiallypresenttheconceptandhistoryof retrospectiveofdeafeducationand inclusive rural education, education, the legal a frameworks ofdeafeducation, the role ofthetranslatorandinterpremolarpoundsandtheanalysisofthe interview, wheretheresultsrevealedhowdifficulttheinclusionofdeafstudents mainstreamschools.O presente Trabalho de Conclusão de Curso abordará o seguinte tema: Inclusão. Um olhar sobre a prática da Língua Brasileira de Sinais - Libras nas escolas do campo, onde discorrerá sobre os „surdos‟ e „educação do campo‟, no qual será analisado no decorrer do trabalho se a pratica de Libras com os educandos surdos ocorre efetivamente nas escolas do campo. Para tanto a metodologia apresentada se dar através de uma entrevista, realizada na escola do campo, com uma professora que leciona em uma sala multisseriada, onde foram feitos alguns questionamentos como, por exemplo: O professor está preparado para atender alunos surdos? O professor fez curso de Libras, ou se interessou em fazer? Existe um intérprete de Libras em sala de aula? A escola tem estrutura pedagógica para trabalhar com pessoas que tenham algum tipo de deficiência? A inclusão nas escolas e principalmente em sala de aula acontece? Dessa forma inicialmente apresentaremos o conceito e história da educação do campo, uma retrospectiva da educação dos surdos e da educação inclusiva, os marcos legais da educação dos surdos, o papel do tradutor e intérpre de Libras e a análise da entrevista, onde os resultados revelaram o quanto é difícil à inclusão dos alunos surdos nas escolas regulares