bluuebunny/crossref_metadata_2025 huggingface dataset:
ABORTO E MICROCEFALIA: INSERÇÃO DA BIOÉTICA
Authors: Echevengua Patricia Matinez , Belarmino Vanusa , Gonzales Tatiane Nogueira , Piluski Maria Carolina Maidana Vieira
Published: July 2018

O presente estudo consiste em uma revisão integrativa de literatura com o objetivo de conhecer e analisar a produção científica sobre aborto no Brasil, microcefalia e bioética, através da busca ativa de artigos científicos nas bases de dados Pubmed/Medline e Biblioteca Virtual de Saúde (BVS). A partir desta revisão emergiram temas como: aborto legalizado, fetos anencéfalos, aborto induzido, questões conceituais sobre o aborto, humanização dos profissionais e microcefalia. Os artigos selecionados para a leitura foram apresentados em um quadro. Os temas selecionados foram categorizados da seguinte maneira: caracterização do sujeito x aborto induzido; dilemas bioéticos do aborto; aborto e a microcefalia e, a percepção dos profissionais no aborto legal e humanização da prática do abortamento. Cabe ressaltar que discussão ainda é necessária, trazendo à tona a importância do tema para a saúde pública bem como a necessidade definir políticas públicas que amparem essas mães envolvidas neste contexto, independente da causa ser o Zika vírus (ZIKV).
QUESTÕES ÉTICAS EM DOIS CONSÓRCIOS DE PESQUISA
Authors: Paulitsch Renata Gomes , Camerini Adriana Vieira , Dumith Samuel De Carvalho , Prietch Silvio Omar Macedo , Medeiros Susi Heliene Lauz
Published: July 2018

A ética envolvendo estudos com seres humanos continua suscitando discussões no meio acadêmico. Mesmo em estudos que pressupõe mínimo risco, como os estudos observacionais, sempre há possibilidade de eventos não esperados. O objetivo deste estudo foi realizar uma reflexão à cerca das questões éticas em estudos epidemiológicos envolvendo seres humanos. Para tanto foram utilizados como base duas experiências de consórcio de pesquisa. Os estudos foram “Saúde da população Riograndina” realizado em 2016 e “Saúde dos Universitários da FURG” realizado em 2015 na cidade de Rio Grande, RS, Brasil. Podemos concluir que a atenção aos problemas éticos deve estar presente em pesquisas que envolvem seres humanos e que os sujeitos da pesquisa, tanto respondentes quanto aplicadores podem estar envolvidos.
METABOLISMO DO TRIPTOFANO EM TRANSTORNOS MENTAIS: UM ENFOQUE NA ESQUIZOFRENIA
Authors: E Carvalho Michelle Da Silva , Yonamine Camila Miyagui , Mas Caroline Dal , Nunes Dayane Felix Silva , Hayashi Mirian Akemi Furuie
Published: July 2018

O triptofano (TRP) é um aminoácido essencial, encontrado no plasma principalmente ligado à albumina, e com apenas uma pequena fração encontrada na forma livre. Ao atravessar a barreia hematoencefálica, seus metabólitos exercem diferentes ações no sistema nervoso central. Importantes metabólitos neuroativos resultantes do metabolismo do TRP (como a serotonina, melatonina, 3-hidroxiquinurenina, ácido quinolínico e quinurênico, dentre outros) têm sido associados a doenças neurodegenerativas como o Mal de Alzheimer, a doença de Huntington, o transtorno bipolar (TB) e a esquizofrenia (SCZ). Além disto, há também relatos sobre a sua relação com a depressão, as doenças inflamatórias, diversas alergias e com doenças infecciosas. O objetivo deste trabalho foi reunir informações recentes e atualizadas sobre o que se sabe sobre papel do TRP e as seus metabólitos, enfatizando a relação desse aminoácido e seus metabólitos na fisiopatologia da SCZ, com enfoque na via das quinureninas e sobretudo suas eventuais associações com as doenças mentais.
Efficient Technique for Model Order Reduction Retaining Non-Minimum Phase Characteristics using Clustering Dominant Pole-Zero Algorithm
Authors: Anuj Abraham , Pappa N. , Honc Daniel
Published: July 2018

<span style="font-family: 'Times New Roman',serif; font-size: 10pt; -ms-layout-grid-mode: line; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-GB">Model Order Reduction (MOR) challenges a high dimensional problem and plays a key role in areas where dynamic simulation studies are necessary for modern simulation strategy. Many conventional reduction methods namely, reduced order models based on Least Square Method (LSM), Balanced Truncation, Hankel Norm reduction, Dominant Pole Algorithm (DPA) and CDPA method have been developed in the field of control theory. Among these, recently proposed Clustering Dominant Pole Algorithm (CDPA) is able to compute the full set of dominant poles and their cluster center efficiently. In this paper, a hybrid algorithm for model order reduction known as Clustering Dominant Pole-Zero Algorithm (CDPZA) is proposed to identify and preserve the dominant zeros of the processes exhibiting non-minimum phase behaviour. The CDPZA method combines the features of clustering method and DPA. Further, the cluster centers of the dominant zeros in the numerator polynomial are determined using factor division algorithm. The Benchmark HiMAT system of 6th order is considered for testing and validation of the proposed algorithm. The simulation studies are carried out to show the efficacy of the proposed algorithm over conventional MOR algorithms.
Design of a Dispensing CNC Device
Authors: Drgoňa Peter , Štefún Rastislav , Štefke Ľ.
Published: July 2018

<span style="font-family: 'Times New Roman',serif; font-size: 10pt; -ms-layout-grid-mode: line; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-GB">This article deals with the design and practical realization of a CNC device designed for the application of viscous materials, such as a thermal conducting paste. Paste is used for effective heat transfer what is essential in switched mode power supplies. However, its application on surface can be an issue. Designed CNC device serves for easier and more accurate application in production process using standard tubes.
Bien común y ética pública
Authors: Michelini Dorando J.
Published: July 2018

Con el concepto de bien común se ha hecho referencia, a través de la historia, a aquellos bienes materiales e inmateriales que no se circunscriben a una persona sino que remiten a todos y cada uno de los miembros de la sociedad. Entre esos bienes suelen contarse elementos básicos para la supervivencia humana biológica, como el aire y el agua, pero también el derecho a participar en el usufructo de los bienes de la cultura. En algunos casos, el bien común es equiparado al bienestar general; en otros, a la suma de intereses particulares o al beneficio de la mayoría, como cuando se busca el mayor bien para el mayor número posible de individuos. Más allá de las diversas interpretaciones, la promoción del bien común sigue siendo en la actualidad un objetivo clave del Estado en el ideario democrático y un tema recurrente de la ética pública. En lo que sigue, se reconstruye críticamente el concepto tradicional de bien común, haciendo especial referencia a las obras de Platón, Aristóteles y Santo Tomas, con el fin de sentar bases para una nueva comprensión de la idea de bien común en sociedades pluralistas y democráticas.
¿Muerte del arte o estetización de la cultura?
Authors: Rebok María Gabriela
Published: July 2018

Se plantea la discusión acerca de la “muerte del arte” y sus consecuencias no sólo para el arte contemporáneo, sino también para la cultura. Los motivos de dicha muerte y las nuevas figuras que fue adoptando el arte se rastrearon a partir de Hegel, pasando por Benjamin, Nietzsche, hasta Heidegger y Vattimo. El arte atraviesa la experiencia trágica del nihilismo, con su epicentro en la “muerte de Dios”, para fundarse en nuevas formas de la libertad que estetizan y democratizan la cultura.
Las raíces agustinianas de la conceptualidad de "Ser y Tiempo"
Authors: Klocker Dante
Published: July 2018

La progresiva publicación a lo largo de las últimas dos décadas de los cursos dictados por Heidegger durante sus primeros años de docencia ha permitido reconstruir el proceso de gestación de Ser y Tiempo (1927), sus múltiples referencias textuales e influencias. Entre ellas, ocupa un lugar destacado el pensamiento agustiniano, por lo cual me propongo considerar aquí su fuerte presencia en algunos de los conceptos centrales de dicha obra.

El primero a tener en cuenta es el de “Sorge” (preocupación, cuidado) con el que Heidegger caracteriza la constitución ontológica fundamental del existir humano. Sus primeros esbozos habían surgido de la reflexión en torno al célebre “inquietum cor nostrum” y a la cura por la vita beata de Confesiones X. A partir de este mismo texto Heidegger había realizado también una interpretación fenomenológica de la tentación, que constituye una de las primeras elaboraciones de la llamada “caída”, precisamente uno de los momentos estructurales de la “Sorge”.

Referencias explícitas o sugerentes analogías entre ambos pensadores pueden apreciarse también entre la explicación de Confesiones XI del “tempus” como “distentio animi” y la tesis heideggeriana de la “temporalidad” como fundamento de la constitución de la subjetividad humana; el tránsito desde la búsqueda de Dios a la exploración de la interioridad de aquel que lo busca y el retroceso desde la pregunta por el “ser” a la pregunta por el que comprende el “ser”, entre otros casos no menos significativos.
A study on self-esteem, mother, father, and peer relations as predictors of cyberbullying and cyber-victimization in high school students
Authors: Pekşen Süslü Demet
Published: July 2018

Cyberbullying is not a problem only based on the the adolescents’ individual characteristics, but also it is better understood by considering the other environmental characteristics such as family and peers. Fundamental aim of this research is to investigate self-esteem and relationships with mother, father and peers as predictors of cyberbullying and cyber-victimization in high school students. The study is conducted using a correlational design. Research group consisted of 1085 students (554 female, 531 male). For the analysis of research data, since the data violated the assumptions of normality, a method of nonparametric Robust Regression Analysis was used. The findings of the study unveiled that the statistical analysis. In terms of cyberbullying model, meeting the expectations of mother’s relationships were negative, the regulations of norms of father’s relationships subscale were negative and whereas the loyalty of the peer relationships subscale was positive significant predictors. In terms of cyber-victimization model, self-esteem was negative, meeting the expectations of mother’s relationships subscale were negative, in the peers relationships subscale trust and identification were negative, loyalty was positive and self- disclosure was positive significant predictors.//
Physical Mechanical Properties of Medical Socks Proposed for Diabetic Foot Syndrome Sampled from the Market
Authors: Darwish Heba , Abdel-Megied Zeinab , Geiheini Adel El
Published: July 2018

Diabetic disease and its chronic complications is a public health problem that affects millions of people all over the world. Feet diabetics need private care by using appropriate shoes and socks, to avoid friction, sweating and high temperature. Diabetic socks have to attain an effective thermal comfort and higher appraisal performance. To achieve these conditions, the diabetic socks have to attain comfortable fit, no pressure points or seams on fingers, suitable size, classified as spring-summer or autumn-winter and also to avoid high temperature. The specifications of the diabetic socks sold in the market consist of its material combination, size and chemical treatments. No definite physical mechanical properties of diabetic socks are proposed. Diabetic socks taken from the market, with appropriate price, were evaluated for both thermal and non-thermal properties. The tested samples demonstrate a great variability’s in the fabric construction and properties. By analyzing the tested socks, the proposed values concerning the properties of diabetic socks for summer and winter are introduced. Moreover, relative geometrical mean of thermal comfort properties was proposed for determining a global measure of diabetic sock properties.
Electrospinning – 100 Years of Investigations and Still Open Questions of Web Structure Estimination
Authors: Kleivaitė Virginija , Milašius Rimvydas
Published: July 2018

The article presents an overview of electrospinning process development from the first investigations in the field of behaviour of liquids in an electrostatic field to the electrospinning methods and investigations in the 21st century. The article presents the history of electrospinning process development, the main problems that are solved, and also indicates the gaps in the field of standardisation of nanofibrous web structure measurement and estimation. There are a lot of works in which authors analyse influences of various parameters on the electrospinning process or on the structure of electrospun web, whereas the majority of them do not analyse the quality of structure using mathematical criteria. Such a situation leads to different conclusions and makes it impossible to compare various works by different authors. Despite numerous studies in electrospinning, investigations in the electrospun nanofibrous web estimation are not sufficient. Until now, a unique standard method for measuring and estimating the fibre diameter and web porosity has not been developed. The necessity of such a method and standards is obvious, and the lack of such a standard could have a negative influence on the electrospun product introduction into the market.
The Loss of the Great Outdoors: Neither Correlationist Gem nor Kantian Catastrophe
Authors: Lovat Toby
Published: July 2018

This article concerns Quentin Meillassoux’s claim that Kant’s revolution is responsible for philosophy’s catastrophic loss of the ‘great outdoors’, of our knowledge of things as they are in themselves. I argue that Meillassoux’s critique of Kant’s ‘weak’ correlationism and his defence of ‘strong’ correlationism are predicated on a fallacious argument (termed ‘the Gem’ by David Stove) and the traditional, but in my view mistaken, metaphysical interpretation of Kant’s transcendental distinction. I draw on Henry Allison’s interpretation of Kant’s idealism to argue that when Kant’s transcendental distinction is understood epistemologically we can avoid the fallacious reasoning underpinning Meillassoux’s argument, and at the very least attenuate his concerns about the ‘Kantian catastrophe’.
Predictors of Improvement in Physical Function in Older Adults in an Evidence-Based Physical Activity Program (EnhanceFitness)
Authors: Fishleder Sarah , Petrescu-Prahova Miruna , Harris Jeffrey R. , Leroux Brian , Bennett Kimberly , Helfrich Christian D. , Kohn Marlana , Hannon Peggy
Published: July 2018

Background and Purpose:

Declines in strength, flexibility, and balance in older adults can lead to injuries and loss of independence and are particularly common in those of greater age and in worse health. EnhanceFitness (EF) is a nationally disseminated, evidence-based group exercise program for older adults that has been shown to improve function through cardiovascular, strength, flexibility, and balance exercises. This article examines changes in, and predictors of, participant physical function from baseline through 2 program cycles of EF as measured by 3 physical function tests: arm curls, chair stands, and 8-foot up-and-go.

Methods:

We analyzed data on participants who attended at least 2 consecutive 16-week program cycles between January 2005 and June 2016. We ran 3 random-effects linear regression models, 1 for each physical function test, and accounted for missing data and clustering by class site. Independent variables included attendance, demographics, and health status.

Results and Discussion:

A total of 7483 participants completed baseline and 2 sets of follow-up physical function tests. For all 3 physical function tests, participants showed some degree of improved physical function at each follow-up, and greater program attendance predicted clinically significant improvements. Some participants had less improvement: females, those less active at baseline, older than 75 years, not married or partnered, or in fair or poor health, those who had experienced at least 1 fall, and those with a disability.

Conclusion:

EnhanceFitness program providers may need to implement additional measures to support the participants who could benefit most from EF, such as targeting messaging, coordinating with referring providers to emphasize attendance and general activity in specific participants, and offering additional support to groups who show less improvement during classes. The evidence presented here may inform clinical decision making for older adult patients and increase health care provider confidence in EF and similar exercise programs, thereby providing a mechanism to maintain and continue functional gains made in clinical or rehabilitation settings.
Validity and Reliability of Jump Height Measurements Obtained From Nonathletic Populations With the VERT Device
Authors: Manor John , Bunn Jennifer , Bohannon Richard W.
Published: July 2018

Background and Purpose:

Vertical jump (VJ) is commonly used to assess lower extremity power in athletic populations. A portable device called the VERT has been validated for this population, but not in nonathletic populations. We sought in this study to assess the clinimetric properties of VJ height measurements obtained with the VERT from older and younger nonathletes.

Methods:

Twenty-eight participants (14 older, 14 younger, evenly split between male and female) completed 2 submaximal and 3 maximal VJ trials wearing the VERT during 2 sessions separated by 5 to 9 days. During the first session, their VJ heights were also monitored using motion capture video.

Results:

Analysis revealed concurrent validity of the VERT against motion capture (intraclass correlation coefficient [ICC3,1] = 0.826-0.950) and known-groups validity of the VERT based on age and gender (P < .001). Strong parallel reliability against a second VERT device (ICC = 0.992) was demonstrated as was strong test-retest reliability (ICC = 0.968).

Conclusions:

The VERT device provides valid and reliable measures of VJ height in nonathletic populations, including older adults. However, the VERT may not be suitable for recording the low jump heights of some older adults.
The Golf Movement Screen Is Related to Spine Control and X-Factor of the Golf Swing in Low Handicap Golfers
Authors: Gould Zachariah I. , Oliver Jon L. , Lloyd Rhodri S. , Neil Rich , Bull Mark
Published: July 2018

Gould, ZI, Oliver, JL, Lloyd, RS, Neil, R, and Bull, M. The golf movement screen is related to spine control and x-factor of the golf swing in low handicap golfers. J Strength Cond Res 35(1): 240–246, 2021—The aim of the study was to investigate the association between the golf movement screen (GMS), x-factor, which is the separation between the upper torso and pelvis rotation, and biomechanical movements of the pelvis, thorax, and spine during the backswing and impact of a golf shot in low handicap golfers. In total, 62 golfers were involved in this study (n = 40 male, n = 22 female); the mean age of the sample was 15.4 ± 2.4 years. For the GMS, all subjects were assessed on their movement ability over a total of 10 different exercises. After a thorough warm-up routine of practice swings, each golfer then performed a single trial for biomechanical analysis. Biomechanical data were collected using an electromagnetic tracking system. Four of the 10 exercises had a significant correlation with x-factor (r = 0.25–0.33; p < 0.05). Four exercises had moderate correlations with spine rotation at the top of backswing. Spine side bend had a significant correlation with 9 of the 10 exercises and total GMS score (r = 0.26–0.53, p < 0.05). Movements of the pelvis and thorax at the top of backswing had minimal associations with the GMS. At impact, trunk inclination, thoracic rotation, and squat had small to moderate significant relationships with biomechanical movements (p < 0.05). Movement competency, as measured by the GMS, is associated with important aspects of swing mechanics. In particular, golfers who achieve better scores in the GMS have better spine control and can create a greater x-factor during the golf swing.
Identifying Contextual Influences on Training Load: An Example in Professional Rugby Union
Authors: Dalton-Barron Nicholas E. , McLaren Shaun J. , Black Christopher J. , Gray Michael , Jones Ben , Roe Gregory
Published: July 2018

Dalton-Barron, NE, McLaren, SJ, Black, CJ, Gray, M, Jones, B, and Roe, G. Identifying contextual influences on training load: an example in professional rugby union. J Strength Cond Res 35(2): 503–511, 2021—We aimed to investigate the contextual factors influencing training load (TL), as determined by session rating of perceived exertion (sRPE-TL), accumulated within a match-to-match microcycle in rugby union players. Session rating of perceived exertion-TL data were collected daily from 35 professional rugby union players from the same team in the English Championship over the course of an in-season period. Players were split by positional groups (backs and forwards) and sRPE-TL data were categorized as: field-based on-feet sRPE-TL (sRPEField-TL), gym-based sRPE-TL (sRPEGym-TL), and the total summation of both (sRPETotal-TL). Three 2-level linear mixed models were built for each dependent variable in each positional group, with magnitude-based inferences applied. Long between-match recovery cycles (≥7 days) resulted in very likely to almost certainly small to moderate increases in sRPE-TL for all modalities and positions (fixed effect [mean range] = 28.5%–42.0%), apart from sRPEField-TL for forwards. For backs, there was a very likely small decrease in sRPEField-TL as the season progressed (−16.7% per trimester). Losing the last league match was associated with very likely and almost certainly small decreases in sRPETotal-TL and sRPEGym-TL for backs (−20.7% and −36.4%, respectively). Losing the last match in any competition resulted in a very likely small increase in sRPEField-TL (21.2%) and a possibly small decrease sRPEGym-TL (−18.5%) for backs—with a likely smaller sRPEGym-TL for forwards (−33.4%). The strength of the upcoming opposition had no effect on sRPE-TL. Our findings highlight some of the multifactorial contextual factors that must be considered when planning and evaluating training microcycles.
Match Demands of National Collegiate Athletic Association Division I Men's Soccer
Authors: Curtis Ryan M. , Huggins Robert A. , Looney David P. , West Chris A. , Fortunati Andrea , Fontaine Garrett J. , Casa Douglas J.
Published: July 2018

Curtis, RM, Huggins, RA, Looney, DP, West, CA, Fortunati, A, Fontaine, GJ, and Casa, DJ. Match demands of National Collegiate Athletic Association Division I men's soccer. J Strength Cond Res 32(10): 2907–2917, 2018—This study aimed to profile positional movement characteristics of National Collegiate Athletic Association (NCAA) Division I male soccer players. Eighteen Division I male soccer players were monitored using global positioning systems, inertial movement, and heart rate (HR) technology during 24 matches over a full competitive season (N = 235 observations). Positional groups were classified as either a forward (F), center midfielder (CM), wide midfielder (WM), or defender (D). Movement was profiled by locomotor (walking [0–7.19 km·h−1], jogging [7.20–14.39 km·h−1], running [14.40–21.59 km·h−1], and sprinting [>21.6 km·h−1]), and acceleration/deceleration characteristics (low intensity [0–1.99 m·s2], moderate intensity [2–3.99 m·s2], and high intensity [>4 m·s2]). Players averaged distances of 9,367 ± 2,149 m per match at speeds of 91 ± 20 m·min−1 and physiological intensities of 78 ± 8 %HRmax. Center midfielder demonstrated the highest average speeds (97 ± 20 m·min−1) and covered the most distance (9,941 ± 2,140 m). Wide midfielder accumulated the most sprint distance (391 ± 145 m) and high-intensity accelerations (129 ± 30 n)/decelerations (96 ± 24 n). Several practically meaningful differences exist between positions for internal and external load metrics. Match loads seen in NCAA Division I soccer vary from reports of professional soccer; however, the effects of match regulation, structure, and congestion, which are unique to NCAA soccer, require further investigation. Physical and physiological load monitoring of NCAA soccer may aid coaches and practitioners in the periodization of training programs leading up to and during a competitive soccer season. These data speak to the necessity for examining both internal and external loads by position.
A integração do imigrante no Brasil em uma perspectiva comparada com Canadá: o caso dos haitianos
Authors: De Moraes Isaías Albertin , De Aguiar Mônica Heinzelmann Portella
Published: July 2018

A pesquisa, a partir dos desafios que a recente imigração de haitianos impôs ao Brasil, buscou investigar a atual política pública de integração do imigrante no país em uma perspectiva comparada com o Canadá.  O estudo tem como método de análise a Política Comparada e como objetivo de metodologia a pesquisa exploratória. O artigo é dividido em duas seções, a primeira apresenta a política de imigração brasileira e a segunda a canadense, sendo feitas comparações entre ambas na segunda parte e nas considerações finais.
ASIANADIAN: a ficção asiático-canadense de mulheres em processo de transculturação
Authors: Silva Leite Maria do Rosario
Published: July 2018

Em Everything Was Good-Bye (2010), de Gurjinder Basran, escritora canadense inserida na diáspora asiático-canadense, buscamos enfocar os impactos da exclusão e discriminação que permeiam as narrativas de escritoras contemporâneasno contexto literário canadense. Ao abordarmos o romance em tela, entendemos a escrita da autora como uma tentativa literária de “quebrar o silêncio” imposto pelo privilégio branco, promovendo uma releitura de caráter pós-colonial e contra hegemônico do Canadá contemporâneo. Dessa forma, nos debruçamos sobre a escrita da minoria asiático-canadense (mulheres de cor), parte significativa dos povos asiáticos que migraram para aquele país e que expõe frequentemente as memórias do passado e as experiências do presente para, assim, desenvolvermos uma necessária compreensão do contexto de um país tão múltiplo, através da discussão do conceito de transculturação (ou transculturalidade) e seu impacto no romance da Basran. Assim, esse novo espaço que se forma pela perspectiva das literaturas das minorias, no caso, da diáspora indiana no Canadá, mostra-se como o lócus apropriado para apresentar os conflitos e negociações entre a cultura ancestral e a de chegada.
Argamassa com resíduo de borracha: Propriedades físicas e mecânicas
Authors: Navarini Kurz Mônica , Marini Brandelli Tais , Marcelo Paliga Charlei , Da Silva Torres Ariela
Published: July 2018

A crescente quantidade de veículos fabricados resulta no aumento de consumo de pneu e de seu descarte irregular, portanto estudos vêm analisando a incorporação destes resíduos em argamassas e concretos, como uma maneira de absorvê-los. Este estudo teve como objetivo avaliar o comportamento de argamassas com diferentes percentuais de substituição de agregado miúdo por resíduo de borracha de pneu, analisando seu comportamento físico e mecânico. As argamassas foram avaliadas em relação ao índice de consistência, absorção por capilaridade e por imersão, índice de vazios e resistência à compressão e à tração por compressão diametral. Os resultados para o ensaio fresco mostraram diminuição no índice de consistência com o aumento de substituição de resíduo de borracha. Os ensaios de absorção mostram que algumas argamassas com resíduo obtiveram melhor comportamento que a argamassa referência, no entanto, houve diminuição da resistência mecânica.
Temperaturas mesófilas e termófilas na produção de biogás através de efluente da parboilização do arroz
Authors: Nadaleti Willian Cezar , Lourenço Vitor Alves , Schoeler Guilherme Pereira , Afonso Marcela , Santos Renan Freitas , Vieira Bruno Muller , Leandro Diuliana , Silveira Quadro Maurizio
Published: July 2018

As indústrias de arroz geram cerca de quatro litros de efluente a cada quilo de arroz beneficiado, sendo o Brasil um dos maiores produtores de arroz no mundo e tendo em vista que esses efluentes possuem altas cargas orgânicas, tal segmento apresenta enorme potencial poluidor. Diante disso, a digestão anaeróbia visando a produção de biogás é avaliado como possível solução tanto na geração de energia quanto no tratamento de efluentes. O propósito deste trabalho é avaliar a temperatura ideal para produção de biogás por meios da digestão anaeróbia com lodo e efluente da parboilização de arroz. Os biodigestores foram operados em batelada às temperaturas de 35 °C, 45 °C e 55 °C. O maior pico de produção de biogás em todas as temperaturas se deu nas primeiras 12 horas. O maior volume de biogás gerado ao longo das 276 horas ocorreu no sistema à 35 °C com 5,198 dm³, assim como 87,3% de remoção de DQO. Para o pH, todos sistemas alcançaram a neutralidade. A temperatura ideal para a produção de biogás através da digestão de efluente da produção de arroz parboilizado, nesse experimento, foi a de 35 °C.
Eficiência de coagulantes na remoção de manganês
Authors: Lopes Bruno , Andreazza Robson , HEYLMANN Kelly , Veigas Diego , Ferreira Rodrigo , Quadro Maurízio
Published: July 2018

O Mn, se consumido em altas concentrações pela população, pode acarretar problemas de saúde, principalmente pela ingestão de água potável. Desta forma, o objetivo deste estudo foi avaliar a eficiência da remoção dos íons de Manganês na água bruta com a adição de diferentes coagulantes e concentrações de íons Mn na água bruta. Foram utilizadas diferentes concentrações de Mn, de 2 à 6 mg L-1, e avaliado três diferentes coagulantes: Sulfato de Alumínio, Tanino e Policloreto de Alumínio, para o tratamento de água. Os resultados demonstraram que os coagulantes Tanino e Policloreto de Alumínio apresentaram os melhores potenciais de remoção do Mn, sendo a maior eficiência apresentada para o coagulante Tanino na água bruta sem adição de Mn, e para a água bruta com adição de 2 mg L-1 de Mn. O coagulante Policloreto de Alumínio obteve a maior eficiência apenas para a água bruta com adição de 6mg L-1 de Mn. O Sulfato de Alumínio apresentou os piores índices de remoção. Em situação de maior concentração de íons de Mn na água bruta da região, o coagulante mais eficiente para a remoção do Mn é o Policloreto de Alumínio.
ALTERNATIVA PARA CONTROLE DE PLANTAS DANINHAS POR MEIO DE CAPINA ELÉTRICA EM SISTEMAS SILVICULTURAIS
Authors: Medauar Caique Carvalho , Galvão Ícaro Monteiro , Carvalho Luis Carlos Cirilo , Silva Samuel De Assis
Published: July 2018

Com este trabalho se objetivou argumentar o uso da tecnologia de capina elétrica para dessecação e/ou controle de plantas daninhas no sistema de silvicultura, auxiliando nas medidas para conservações do meio ambiente como alternativa ecológica. A revisãodestaca a tecnologia de aplicação atual na silvicultura, os principais métodos de combate às plantas daninhas, até chegar ao funcionamento da capina elétrica. Foram relatadas as principais características, funcionamento e algumas hipóteses para inserção ou não do equipamento para a silvicultura.A atividade da capina elétrica na silvicultura em determinada região e época do ano é inviável em relação a critérios técnicos e ecológicos, devido aos riscos de incêndios quando se tem muita matéria seca sobre o solo.
Aqua Zumba versus Aqua Jogging: Comparative effects on health parameters among obese middle age women
Authors: Md Yusof Sarina , Shari Maisarah , Mohd Idris Norizzati , Raja Hussain Raja Nurul Jannat
Published: July 2018

Background:Obesity is major contributor to diseases and mortality. Constant weight loss significantly reverses the diseases related to obesityand prolonged human life expectancy. Limited scientific evidence comparing the effectiveness between Aqua Zumba® Fitness program and aqua jog in obese women. Thus, the purpose of this study was to compare the effects between 12 weeks of Aqua Zumba® Fitness and aqua jog on health parameters among middle-age women.Methods:A total of sixty previously sedentary obese women (BMI >30 kg/m2), aged 40-59 years old were randomized to either Aqua Zumba® Fitness (AZ, n=20), aqua jog (AJ, n=20) or control group (C, n=20). Exercise groups were involved in 12-weeks of different aqua exercise programmes, 3 times per week, 60 minutes per session, with the intensity of 50-75% of maximum heart rate. Body mass (BM), lean mass (LM), body fat percentage (BF%), abdominal fat (WC), upper and lower body strength (UBS and LBS), cardiorespiratory fitness (CRF), and flexibility were measured at baseline (week-0) and post-exercise intervention (week-13). Result:Both trained groups demonstrated significant changes (p<0.05) in all selected health parameters following 12 weeks of exercise programmes. However, this study found that AZ group produced significant superior change on the improvement of LM, WC, UBS and LBS (P<0.05) compared to AJ group. Conclusion:  As a result, Aqua Zumba® Fitness elicits better improvement on health among obese middle-age women compared aqua jog.
Breakfast consumption association with body status and physical activity among female university students
Authors: Ramli Nurul Najwa
Published: July 2018

Breakfast consumption is associated with many benefits, including behavioural, cognitive, and affective aspects of individuals. Young adults, especially female university/college students frequently failed to meet the prescription of nutritional intake and often skip meals particularly breakfast. Thus, this present study was aimed to investigate the associations of breakfast consumption with body status and level of physical activity among female university students. A total of 165 female university students, mean aged 21.9 ± 1.5 years from Universiti Teknologi MARA (UiTM) Shah Alam, Malaysia voluntarily took part in this study. Body weight, height, waist circumference and body fat percentages were measured using the standard procedures. The odd ratios were calculated to compare in level of physical activity between skippers and non-skippers. Findings revealed that breakfast consumption was not significantly associated with body mass index (BMI), waist circumferences and physical activity level. Conversely, the results showed that breakfast consumption was significantly associated with body fat percentages (%BF) (p<0.05; p=0.006). The results show that skippers were more likely (OR: 1.6; 95% CI) never do mild exercise or do mild exercise for less half an hour per day (56.5%) compared to non-skippers (43.5%) even though the data did not meet the statistical significant. Among the respondents, skippers (56.5%) were more likely (OR: 1.6; 95% CI) who spend time less half an hour in moderate exercise than non-skippers (43.5%). Also, the data indicates that non-skippers (53.3%) were more likely (OR: 2.4 times) to do moderate exercise of more than half an hour rather than skippers (46.7%). Skippers (65.3%) tend to do more strenuous exercise of less than half an hour (OR: 5.3; 95% CI) compared to non-skippers (34.7%). Emphasizing the importance of eating breakfast may lead university students to have better healthy lifestyles, improve academic achievement and prevent obesity crisis among young adults.
A six-week pilates exercise protocol for improving physical and mental health-related parameters
Authors: AKBAŞ Eda , ÜNVER Banu
Published: July 2018

Main Problem: Pilates, as a body-mind exercise method has an increasing popularity in recent years especially among young women. But there is not enough evidence whether this exercise method contributes to the physical or/and psychological condition of individuals. The aim of this study was to investigate the effectiveness of an original six-week Pilates Exercise Protocol on young females’ health-related parameters including anthropometric features, emotional state, fatigue, and quality of life. Methods: Fifty-one sedentary females aged between 18 and 25 were randomly assigned to Pilates Exercise Group (n=25), and Control Group (n=26). Pilates Exercise Group performed a six-week Pilates exercise protocol whereas Control Group did not participate any regular physical activity during six weeks. Anthropometric features, anxiety, depression, fatigue, and quality of life of the subjects were assessed at the baseline and after six weeks. Results: Weight (p=0.005), body mass index (p=0.005), waist (p<0.001), hip (p=0.002), and thigh circumferences (p<0.001), severity of anxiety (p=0.001), depression (p=0.001), and fatigue (p<0.001) significantly decreased in Pilates Exercise Group after six weeks besides vitality (p=0.005), and mental health (p=0.021) domains of quality of life increased. There were no significant differences in Control Group (p>0.005) after six weeks except of anxiety (p=0.010), and fatigue (p=0.032). Conclusions: The current Pilates exercise protocol contribute to the physical, and psycological well being of young females in terms of anthropometric features, emotional state, fatigue, and some domains of quality of life.
Follicular thyroid lesions: is there a discriminatory potential in the computerized nuclear analysis?
Authors: Valentim Flávia O , Coelho Bárbara P , Miot Hélio A , Hayashi Caroline Y , Jaune Danilo T A , Oliveira Cristiano C , Marques Mariângela E A , Tagliarini José Vicente , Castilho Emanuel C , Soares Paula , Mazeto Gláucia M F S
Published: July 2018

Background

Computerized image analysis seems to represent a promising diagnostic possibility for thyroid tumors. Our aim was to evaluate the discriminatory diagnostic efficiency of computerized image analysis of cell nuclei from histological materials of follicular tumors.

Methods

We studied paraffin-embedded materials from 42 follicular adenomas (FA), 47 follicular variants of papillary carcinomas (FVPC) and 20 follicular carcinomas (FC) by the software ImageJ. Based on the nuclear morphometry and chromatin texture, the samples were classified as FA, FC or FVPC using the Classification and Regression Trees method.

Results

We observed high diagnostic sensitivity and specificity rates (FVPC: 89.4% and 100%; FC: 95.0% and 92.1%; FA: 90.5 and 95.5%, respectively). When the tumors were compared by pairs (FC vs FA, FVPC vs FA), 100% of the cases were classified correctly.

Conclusion

The computerized image analysis of nuclear features showed to be a useful diagnostic support tool for the histological differentiation between follicular adenomas, follicular variants of papillary carcinomas and follicular carcinomas.
MECHANISMS IN ENDOCRINOLOGY: Bone marrow adiposity and bone, a bad romance?
Authors: Rharass Tareck , Lucas Stéphanie
Published: July 2018

Bone marrow adipocytes (BMA-) constitute an original and heterogeneous fat depot whose development appears interlinked with bone status throughout life. The gradual replacement of the haematopoietic tissue by BMA arises in a well-ordered way during childhood and adolescence concomitantly to bone growth and continues at a slower rate throughout the adult life. Importantly, BM adiposity quantity is found well associated with bone mineral density (BMD) loss at different skeletal sites in primary osteoporosis such as in ageing or menopause but also in secondary osteoporosis consecutive to anorexia nervosa. Since BMA and osteoblasts originate from a common mesenchymal stem cell, adipogenesis is considered as a competitive process that disrupts osteoblastogenesis. Besides, most factors secreted by bone and bone marrow cells (ligands and antagonists of the WNT/β-catenin pathway, BMP and others) reciprocally regulate the two processes. Hormones such as oestrogens, glucocorticoids, parathyroid and growth hormones that control bone remodelling also modulate the differentiation and the activity of BMA. Actually, BMA could also contribute to bone loss through the release of paracrine factors altering osteoblast and/or osteoclast formation and function. Based on clinical and fundamental studies, this review aims at presenting and discussing these current arguments that support but also challenge the involvement of BMA in the bone mass integrity.
MRI texture analysis as a predictor of tumor recurrence or progression in patients with clinically non-functioning pituitary adenomas
Authors: Galm Brandon P , Martinez-Salazar E Leonardo , Swearingen Brooke , Torriani Martin , Klibanski Anne , Bredella Miriam A , Tritos Nicholas A
Published: July 2018

Background

There are limited predictors of prognosis in patients with clinically non-functioning pituitary adenomas (NFPAs). We hypothesized that MRI texture analysis may predict tumor recurrence or progression in patients with NFPAs undergoing transsphenoidal pituitary surgery (TSS).

Objective

To characterize texture parameters on preoperative MRI examinations in patients with NFPAs in relation to prognosis.

Methods

Retrospective study of patients with NFPAs who underwent TSS at our institution between 2009 and 2010. Clinical, radiological and histopathological data were extracted from electronic medical records. MRI texture analysis was performed on coronal T1-weighted non-enhanced MR images using ImageJ (NIH). MRI texture parameters were used to predict tumor recurrence or progression. Both logistic regression and Cox proportional hazard analyses were conducted to adjust for potential confounders.

Results

Data on 78 patients were analyzed. On both crude and multivariable-adjusted analyses, mean, median, mode, minimum and maximum pixel intensity were associated with the risk of pituitary tumor recurrence or progression after TSS. Patients whose tumor mean pixel intensity was above the median for the population had a hazard ratio of 0.44 (95% CI: 0.21–0.94, P = 0.034) for recurrence or progression in comparison with tumors below the median.

Conclusions

Our data suggest that MRI texture analysis can predict the risk of tumor recurrence or progression in patients with NFPAs.
Tumour growth and immune evasion as targets for a new strategy in advanced cancer
Authors: Nicolini Andrea , Ferrari Paola , Rossi Giuseppe , Carpi Angelo
Published: July 2018

It has become clearer that advanced cancer, especially advanced breast cancer, is an entirely displayed pathological system that is much more complex than previously considered. However, the direct relationship between tumour growth and immune evasion can represent a general rule governing the pathological cancer system from the initial cancer cells to when the system is entirely displayed. Accordingly, a refined pathobiological model and a novel therapeutic strategy are proposed. The novel therapeutic strategy is based on therapeutically induced conditions (undetectable tumour burden and/or a prolonged tumour ‘resting state’), which enable an efficacious immune response in advanced breast and other types of solid cancers.
Adiponectin regulates glycogen metabolism at the human fetal–maternal interface
Authors: Duval Fabien , Dos Santos Esther , Maury Benoît , Serazin Valérie , Fathallah Khadija , Vialard François , Dieudonné Marie-Noëlle
Published: July 2018

Throughout the entire first trimester of pregnancy, fetal growth is sustained by endometrial secretions, i.e. histiotrophic nutrition. Endometrial stromal cells (EnSCs) accumulate and secrete a variety of nutritive molecules that are absorbed by trophoblastic cells and transmitted to the fetus. Glycogen appears to have a critical role in the early stages of fetal development, since infertile women have low endometrial glycogen levels. However, the molecular mechanisms underlying glycogen metabolism and trafficking at the fetal–maternal interface have not yet been characterized. Among the various factors acting at the fetal–maternal interface, we focused on adiponectin – an adipocyte-secreted cytokine involved in the control of carbohydrate and lipid homeostasis. Our results clearly demonstrated that adiponectin controls glycogen metabolism in EnSCs by (i) increasing glucose transporter 1 expression, (ii) inhibiting glucose catabolism via a decrease in lactate and ATP productions, (iii) increasing glycogen synthesis, (iv) promoting glycogen accumulation via phosphoinositide-3 kinase activation and (v) enhancing glycogen secretion. Furthermore, our results revealed that adiponectin significantly limits glycogen endocytosis by human villous trophoblasts. Lastly, we demonstrated that once glycogen has been endocytosed into placental cells, it is degraded into glucose molecules in lysosomes. Taken as a whole, the present results demonstrate that adiponectin exerts a dual role at the fetal–maternal interface by promoting glycogen synthesis in the endometrium and conversely reducing trophoblastic glycogen uptake. We conclude that adiponectin may be involved in feeding the conceptus during the first trimester of pregnancy by controlling glycogen metabolism in both the uterus and the placenta.
Proyecto Manejo básico de oficinas: Una intervención educativa para la formación de docentes de Educación Comercial
Authors: Ramírez Alfaro Herminia , Sánchez Alvarado Ingrid
Published: July 2018

La propuesta que se presenta tiene como objetivo evidenciar el aporte del proyecto Manejo básico de oficinas como intervención educativa que permite la articulación entre las áreas estratégicas de la Universidad Nacional de Costa Rica, en este caso específico, la docencia y la extensión, en la formación docente. Se proponen cambios innovadores en el modelo de formación de docentes, convirtiéndolo en un currículo flexible, más práctico, más vivencial, contextualizado y acorde con los requerimientos de estudiantes de Educación Comercial. Además, el modelo se enriquece al ampliar los espacios para realizar procesos de práctica y que los docentes en formación puedan ejercer su labor con diversas poblaciones jóvenes, adultas y adultas mayores. Un punto fundamental es cómo esta experiencia de formación docente se convierte, a la vez, en una intervención educativa, que busca por medio de la educación no formal brindar espacios de capacitación a grupos en desventaja social y con esto se favorece la posibilidad de superación personal, laboral y social. Por ello, se pretende mostrar la importancia de una iniciativa que ha permitido innovar el currículo de formación docente e intervenir por medio de la educación ante las necesidades sociales, mediante un proyecto de extensión y docencia.
Anexo 1- Uso de las plantas por comunidades campesinas en la ruralidad de Bogotá D.C., Colombia
Authors: Pérez Darío , Matíz-Guerra Laura Catalina
Published: July 2018

Base de datos con información de cada sabedor considerando nombres comunes, nombre científico, familias botánicas, usos, origen de la especie, hábitat, número de ejemplar de herbario y categorías de usos atribuidas.*Documento principal: https://doi.org/10.15446/caldasia.v39n1.59932