bluuebunny/crossref_metadata_2025 huggingface dataset:
Toxicological evaluation of the leaves of Guiera senegalensis (J.F. Gme), Cassia occidentalis (Linn), and Ziziphus mauritiana (Lam)
Authors: Yahaya Tajudeen , Shehu Kasimu , Isah Hanan , Oladele Esther , Shemishere Ufuoma
Published: December 2019

Background

There is a renewed global interest in plant-based medicine in the last few decades as a result of affordability and efficacy of the form of medicine. However, the safety of many medicinal plants and plant preparations has not been determined. To this end, this study determined the safety of the methanol extracts of the leaves of Guiera senegalensis, Cassia occidentalis, and Ziziphus mauritiana, which are plants commonly used in plant medicine in Africa.

Results

Phytochemistry of the plants’ extracts showed alkaloids were the most abundant phytochemical in the extracts, followed by tannins, saponins, flavonoids, and glycosides, respectively. All the rats behaved normally at doses up to 2000 mg kg−1, while at 3000 mg kg−1, rats in C. occidentalis group developed breathing problems. At 5000 mg kg−1, C. occidentalis group showed convulsion, whereas Z. mauritiana and G. senegalensis rats displayed temporary weakness. After 60-day dosing, significant differences (p < 0.05) were observed in the liver enzymes (ALP, AST, ALT, TP, and ALB) of most of the test rats compared with the control. Kidney function test showed the Na+, K+, Cl−, urea, and creatinine of the test rats were reduced compared with the control, but only significant (p < 0.05) in a few of the parameters. Fatty metamorphosis, lymphocytic infiltration, and karyorrhexis were observed in the liver tissues of the treated rats, but not in the control.

Conclusion

These results show the plants are nontoxic at moderate doses, but could be injurious at high doses or if taken repeatedly for an extended period.
Is idiosyncratic risk ignored in asset pricing: Sri Lankan evidence?
Authors: Maiti Moinak
Published: December 2019

The present study focused on one of the important South Asian nations—Sri Lanka—to examine the role of idiosyncratic volatility in asset prices. A four-factor model with idiosyncratic volatility was designed for capturing the market, size, value and idiosyncratic risk yields better than Fama and French’s (J Financ Econ 33:3–56, 1993) three-factor model and performance of the model. Fama–MacBeth’s cross-sectional regression, residual graphs and GRS test all confirm the superiority of four-factor model over 2 three-factor models. For all MC- and IVOL-based portfolios, idiosyncratic volatility is negatively related to the expected returns and positively related for all PB-based portfolios. Finally, study findings confirm that there is a high importance for idiosyncratic volatility risk factor while considering investment decision in Colombo stock exchange. Hence, investor should compensate for holding such risk factors in the portfolio.
High levels of floridoside at high salinity link osmoadaptation with bleaching susceptibility in the cnidarian-algal endosymbiosis
Authors: Gegner Hagen M. , Rädecker Nils , Ochsenkühn Michael , Barreto Marcelle M. , Ziegler Maren , Reichert Jessica , Schubert Patrick , Wilke Thomas , Voolstra Christian R.
Published: December 2019

Coral reefs are in global decline mainly due to increasing sea surface temperatures triggering coral bleaching. Recently, high salinity has been linked to increased thermotolerance and decreased bleaching in the sea anemone coral model Aiptasia. However, the underlying processes remain elusive. Using two Aiptasia host­–endosymbiont pairings, we induced bleaching at different salinities and show reduced reactive oxygen species (ROS) release at high salinities, suggesting a role of osmoadaptation in increased thermotolerance. A subsequent screening of osmolytes revealed that this effect was only observed in algal endosymbionts that produce 2-O-glycerol-α-D-galactopyranoside (floridoside), an osmolyte capable of scavenging ROS. This result argues for a mechanistic link between osmoadaptation and thermotolerance, mediated by ROS-scavenging osmolytes (e.g., floridoside). This sheds new light on the putative mechanisms underlying the remarkable thermotolerance of corals from water bodies with high salinity such as the Red Sea or Persian/Arabian Gulf and holds implications for coral thermotolerance under climate change.

This article has an associated First Person interview with the first author of the paper.
Gender role in anxiety, depression and quality of life in chronic kidney disease patients
Authors: Kalsoom Ume
Published: December 2019

Objective: To investigate gender role in quality of life, anxiety, and depression in chronic kidney disease patients. The study hypothesized that men will score high on depression and, anxiety and will score low on quality of life and perceived social support as compare to women

Methods: One hundred patients with chronic kidney diseases were selected using purposive sampling strategy from nephrology ward of Leady Reading Hospital, Peshawar. The participants were included both male (n=50) and female (n=50) ranging in age from 18-65 years (M=44.16, SD= 15.15) Patients were recruited on the basis of preset inclusion criteria i-e (willing to participat, could read, speak and understand urdu language, with no previous history of dialysis treatment) and exclusion criteria (Age > than 18, Previous psychiatric history, Diagnosis less than one year, Education less than high school). All participants completed Quality of Life Questionnaire, Anxiety and depression questionnaires.

Results: Statistical analysis of independent sample t-test shows significant difference of men and women on QOL t(98)=2.34, p=0.021), anxiety t(98)=4.23, p=0.001), and depression t(98)=4.54, p=0.001) while no significant gender differences were reported on perceived social support t(98)= 0.98, p= 0.327.

Conclusion: Male showed more depression, anxiety as compared to females while women reported poor quality of life as compared to men.

doi: https://doi.org/10.12669/pjms.36.2.869

How to cite this:Um-e-Kalsoom. Gender role in anxiety, depression and quality of life in chronic kidney disease patients. Pak J Med Sci. 2020;36(2):251-254. doi: https://doi.org/10.12669/pjms.36.2.869

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The effect of the addition of propolis to resin modified glass ionomer cement bracket adhesive materials on the growth inhibition zone of Streptococcus mutans
Authors: Saputra Stefani Kristanti , Sutantyo Darmawan , Farmasyanti Cendrawasih Andusyana , Alhasyimi Ananto Ali
Published: December 2019

Background: Orthodontic treatments progress alongside the development of adhesive materials. The aim of the present study was to determine the antibacterial properties of propolis, a natural product, in a mixture of resin modified glass ionomer cement by observing the growth inhibition zone of Streptococcus mutans.

Methods: This was an in vitro study conducted on 45 samples of adhesive material, which were divided into three groups of propolis concentrations (0%, 15%, and 25%) and duration (0, 15, and 30 days). The antibacterial effect of each sample was evaluated against S. mutans using an agar plate diffusion test. Measurement of the diameter of the growth inhibition zone of S. mutans were carried out. The data obtained were analyzed statistically by Kruskal Wallis test.

Results: There was a relationship between concentration and duration of propolis to the growth inhibition zone of S. mutans (p<0.05). The addition of 25% propolis concentration inhibited the growth of S. mutans more than the addition of 15% and 0% propolis concentration. The addition of 0%, 15%, and 25% propolis concentration to resin modified glass ionomer cement for 15 days was more effective in inhibiting the growth of S. mutans.

Conclusion: The addition of propolis to adhesive materials provides an inhibitory effect on the growth of S. mutans, which may be effective in the world of preventive dentistry.
Case Report: Malignant Thymoma And Seronegative Myasthenia Gravis
Authors: Sousa Cláudia , Cruz Mafalda , Neto Ana , Pereira Kayla , Henriques Mónica , Marques Rui , Alves Paula
Published: December 2019

Myasthenia gravis (MG) is present in 50% of thymomas and is rarely associated with thymic carcinoma. We present the case of a 49-year-old woman with malignant thymoma, treated with surgery followed by radiotherapy, and a late seronegative MG diagnosis. This case reports the importance of a multidisciplinary approach to the management of the potential correlation of malignant and benign diseases.
An ethnographic study of improving data collection and completeness in large-scale data exercises
Authors: Dixon-Woods Mary , Campbell Anne , Aveling Emma-Louise , Martin Graham
Published: December 2019

Background: Large-scale data collection is an increasingly prominent and influential feature of efforts to improve healthcare delivery, yet securing the involvement of clinical centres and ensuring data comprehensiveness often proves problematic. We explore how improvements in both data submission and completion rates were achieved during a crucial period of the evolution of two large-scale data exercises.

Methods:  As part of an evaluation of a quality improvement programme, we conducted an ethnographic study involving 90 interviews and 47 days of non-participant observation of two UK national clinical audits in a period before submission of data on adherence to clinical standards became mandatory.

Results: Critical to the improvements in submission and completion rates in the two exercises were the efforts of clinical leaders to refigure “data work” as a professionalization strategy. Using a series of strategic manoeuvres, leaders constructed a cultural account that tied the fortunes of the healthcare professions to the submission of high-quality data, proposing that it would demonstrate responsibility, transparency, and alignment with the public interest. In so doing, clinical leadership deployed tactics that might have been seen as unwarranted managerial aggression had they been imposed by parties external to the profession. Many residual challenges were linked not to principled objection by clinicians, but to mundane problems and frustrations in obtaining, recording, and submitting data. The cultural framing of data work as a professional duty was important to resolving its status as an abject form of labour.

Conclusions: Improving data quality in large-scale exercises is possible, but requires cooperation with clinical centres. Enabling professional leadership of data work may offer some significant advantages, but attention is also needed to mundane and highly consequential obstacles to participation in data collection.
The Transformation of the Axiological Consciousness of Modern Russian Youth
Authors: Milovanova M. , Shamsutdinova R.
Published: December 2019

The paper deals for the results of a survey aimed at identifying the attitude of the younger generation to the current state of the Russian axiosphere. The survey involved young people’s interpretation of traditional and relevant for modern Russian society values, detection of a list of personally significant axiologically marked concepts and establishment of a general evaluation of the current situation in Russian society. An important point is the image of the respondent of the described research: this is philologically educated, oriented to the introduction to the traditional Russian culture representative of the younger generation, largely different from other people who make up this age group. The results of the study demonstrate a gradual process of transformation of the national axiological consciousness and a complex and contradictory picture of the interaction of traditionally significant values and actual life orientations.
On the Problem of Reducing the Prestige of a Profession “Teacher of Higher School”
Authors: Laamarti Yuliya , Kargin N.
Published: December 2019

The article discusses the problem of the prestige loss of the university teacher profession. The main reasons that adversely affect the prestige of the profession are identified. There is a need to develop measures aimed at enhancing the prestige of the profession.
Research of Media Equipment of Russia Project Approach to Youth Consolidation
Authors: Kornilova Victoria , Seidalova Almira
Published: December 2019

The article is devoted to the study of the media image of Russia. The media image of the country is used to promote a positive image of the territory, and the study allows you to adjust its main features. Also, media image allows you to successfully carry out media influence on users in the media space. According to the authors, issues related to the assessment of the effectiveness of media managers deserve special attention. Criteria and indicators of media analysis are disclosed. In the process of conducting a study of the media image of Russia, a general view of the country in the international community is revealed. Describes a design solution to the problem of youth consolidation in order to improve the media image of Russia within the country through collaboration with the target audience.
Espectro de cores do ponto de vista matem\'atico.
Authors: Carneiro Fernando Antonio de Araujo , Barrigio Leandro Mendes
Published: December 2019

Apresentamos o resumo da parte principal da disserta\c{c}\~ao de Profmat do segundo autor, cujo assunto \'e a representa\c{c}\~ao matem\'atica do espectro de luz vis\'ivel. nele o segundo autor apresenta modelos alg\'ebricos e geom\'etricos do espa\c{c}o de cores, e apresenta problemas de mistura de cores.
Análise de um Modelo Discreto-Geométrico para o Problema da Propagação da Podridão em Maçãs em Conexão com Progressões e Geometria no Ensino Médio
Authors: Faria Cristiane Oliveira , Fundo Ana Carolina Almeida , Gonçalves Ruth Isabela , Lima Gabriel Gonzaga , De Souza João Paulo Batista , Martino Luciana
Published: December 2019

Neste artigo, apresentamos uma nova abordagem construtivista para o modelo discreto-geométrico,  proposto por BASSANEZI (2012), aplicado ao problema da propagação da podridão de maçãs confinadas em uma caixa retangular. Tendo como auxílio didático a montagem de uma maquete, construída com  bolas de isopor, para simular o efeito de propagação do apodrecimento das maçãs em uma caixa, o modelo surge naturalmente. Esta proposta pode ser aplicada como uma atividade em turmas do Ensino Médio, apresentando aos alunos os preceitos básicos da Modelagem Matemática. O intuito de realizar esse experimento é levar para os estudantes uma nova visão da Matemática, mostrando conceitos básicos do Ensino Médio como progressões aritméticas e geometria sendo aplicados juntos na resolução do mesmo problema. E, com isso, mostrar para esses alunos como os conceitos matemáticos se interligam e podem ser muito mais interessantes quando estudados juntos.
Relacionamentos familiares de pessoas com transtornos mentais: processos de exclusão e inclusão social
Authors: Salles Mariana Moraes , Barros Sônia , Santos Jussara Carvalho dos
Published: December 2019

Objetivo: identificar e analisar os processos de exclusão e inclusão social que acontecem na família da pessoa com transtorno mental. Método: utilizou-se a abordagem qualitativa como metodologia de pesquisa. Os sujeitos desta investigação foram 17 usuários de um Centro de Atenção Psicossocial, da cidade de São Paulo, e 12 pessoas de sua rede social. Para a coleta de dados foram realizadas entrevistas semiestruturadas e, para apuração dos dados, foi utilizada a análise do discurso. Resultados: identificou-se que a exclusão social dos usuários na família pode ocorrer pela ruptura e distanciamento ou de uma maneira mais sutil. Porém, na medida em que os usuários são valorizados e encontraram um papel na família, se estabelecem relações de troca e de ajuda mútua. Conclusão: Os relacionamentos se constroem em um processo dialético, passando por conflitos e situações de reciprocidade.
Abordagem do tema do aborto no ensino de graduação na perspectiva das enfermeiras recém-graduadas
Authors: Pereira Adriana Lenho de Figueiredo , Schroeter Mariana Santana
Published: December 2019

Objetivo: descrever a abordagem do tema do aborto no ensino da graduação e seus nexos com a formação crítica na perspectiva das enfermeiras recém-graduadas. Método: pesquisa qualitativa realizada com 26 enfermeiras recém-graduadas e matriculadas em programas de residência no município do Rio de Janeiro. As entrevistas individuais ocorreram no período de abril a julho de 2016, sendo analisadas pela hermenêutica-dialética e com base referencial de Paulo Freire. O estudo respeitou as normas éticas e obteve CAAE nº 52508915.8.0000.5282. Resultados: a abordagem do tema do aborto na graduação é limitada, pois foi ensinado em poucos momentos e como morbidade do ciclo gravídico-puerperal. As enfermeiras se sentem despreparadas para assistirem as mulheres no aborto legal. Conclusão: o tema do aborto apresenta uma abordagem restrita para a formação da consciência crítico-reflexiva e parece favorecer a reprodução do senso comum sobre o aborto.
As intervenções e responsabilidades do enfermeiro de saúde pública em Portugal: uma scoping review
Authors: Cunha Carmen , Costa Andreia , Henriques Maria Adriana
Published: December 2019

Objetivo: revisar os estudos que referenciam as intervenções e responsabilidades do enfermeiro de saúde pública, desde a criação do Serviço Nacional de Saúde (SNS) Português em 1979, até aos nossos dias. Método: scoping review, seguindo a versão PCC - participants, concept  and context, do The Joanna Briggs Institute. Consultamos bases de dados como a Biblioteca do Conhecimento Online, Scientific Eletronic Library Online, EBSCOhost Online Research Databases. O período de publicação foi de 1979 a 2018. Resultados: Selecionamos quatro artigos publicados e seis dissertações de mestrado, entre 2010 e 2016. Os temas têm a ver com atividades e atuações dos enfermeiros, autonomia e competências, fundamentos normativos, perceções de equipas de saúde, transmissão e obtenção de informação em saúde. Conclusão: Os resultados apurados, mesmo que escassos, forneceram pistas para uma reflexão acerca do modo, tipo dos processos de intervenção, destes enfermeiros, que segundo a opinião de alguns deles, compreendem mais as suas competências do que as concretizam.
O poder em Foucault e a precarização do trabalho em enfermagem
Authors: Pérez Júnior Eugenio Fuentes , Davi Helena Maria Scherlowski Leal , Gallasch Cristiane Helena
Published: December 2019

Objetivo: refletir sobre a precarização do trabalho de enfermagem, tomando como referencial a perspectiva filosófica de Michael Foucault e suas concepções acerca das relações de poder. Conteúdo: trata-se de estudo reflexivo desenvolvido a partir dos resultados de um estudo sobre o conhecimento da enfermagem acerca da precarização do trabalho, estabelecendo-se uma reflexão sob a ótica do pensamento de Foucault no que tange aos conceitos de poder e disciplina. Verifica-se que a falta de regulamentação no nível do macro poder estatal permite que as instituições, isoladamente, determinem padrões a partir dos quais criam regras e disciplinas que controlam e as relações de trabalho e o mercado de trabalho. Para tal ação, utilizam o poder como ferramenta de alienação e dominação dos trabalhadores. Considerações finais: apreende-se que é necessário realizar e aprofundar discussões sobre construção e vivência das relações de poder que são determinantes para a manutenção da precarização do trabalho de enfermagem.
Crise e enfermagem na atenção primária: notas da prática social pelo materialismo histórico dialético
Authors: Martins Amanda De Lucas Xavier , David Helena Maria Scherlowski Leal
Published: December 2019

Objetivo: promover reflexão acerca da conjuntura de crise econômica e política recente e sua relação com as mudanças no trabalho da enfermagem na atenção primária de saúde (APS). Conteúdo: a discussão é norteada pelo do resgate de duas obras pioneiras na análise da profissionalização da categoria na teoria marxista; a crise do capitalismo e o papel do Estado pelo olhar do materialismo histórico dialético. Ressalta-se o avanço do neoliberalismo com reflexos no desmonte dos direitos sociais, na política de saúde e no trabalho da enfermagem na APS. Conclusão: considerando a dinâmica da crise, sua repercussão no Estado e no financiamento da saúde pública, é necessário refletir sobre a prática social da enfermagem que desejamos para conquistar o direito universal à saúde, fortalecer o Sistema Único de Saúde  e valorizar profissão.
Partejar de primíparas: reflexos na amamentação
Authors: Castro Idalina Reis de , Melo Mônica Cecília Pimentel de , Morais Ramon José Leal de , Santos Ana Dulce Batista dos
Published: December 2019

Objetivo: analisar, a partir da experiência de primíparas, a relação entre a assistência recebida durante o parto normal e o pós-parto imediato e seus reflexos na amamentação. Método: qualitativo, descritivo, aprovado pelo Comitê de Ética, realizado em um Centro de Parto Normal, do polo Petrolina-Juazeiro, em 2018. Participaram 17 primíparas, através de entrevista semiestruturada, sendo os dados submetidos a análise temática de conteúdo. Resultados: a amamentação ocorreu positivamente, pois esse lócus é apropriado para essa prática, favorecendo-a de maneira natural. O apoio e a compreensão são primordiais e devem superar uma assistência focada apenas em informações rápidas, técnicas e generalizadas. Conclusão: os anseios e particularidades de cada puérpera precisam ser respeitados e atendidos, valorizando o investimento em políticas de saúde que enfatizem o cuidado humanizado para cada mulher. Logo, a educação em saúde precisa estabelecer reflexão, discussão e aprendizado nesse processo que transcende o biológico.
Uso do polvo de crochê para prematuros na unidade neonatal: uma análise de notícias eletrônicas
Authors: Siqueira Ana Carolina Fratane , Barbosa Paula Raiany Oliveira , Silva Laura Johanson da , Porto Fernando Rocha
Published: December 2019

Objetivo: analisar os argumentos contidos nas notícias veiculadas na mídia eletrônica sobre o uso de polvos (octopus) de crochê nas unidades neonatais de terapia intensiva brasileiras. Método: documental exploratório com abordagem qualitativa, retrospectivo, que utilizou como fonte de dados 21 notícias eletrônicas veiculadas de 2017 a 2018. Resultados: melhora dos sinais vitais e da frequência respiratória, frequência cardíaca estável, maior oxigenação foram os principais benefícios para os prematuros. Os argumentos mais frequentes foram de autoridade, provas concretas e consenso. Conclusão: as notícias ressaltaram os benefícios do uso do polvo de crochê pelos recém-nascidos internados na unidade neonatal, especialmente antes da nota técnica do Ministério da Saúde, quando foram mais numerosas. Entretanto, não há de estudos científicos que comprovem a eficácia do instrumento. Os argumentos identificados no estudo revelam estratégias de convencimento que foram usadas para a formação da opinião pública em relação ao uso do polvo de crochê em prematuros.
Atuação da enfermeira obstétrica na assistência ao trabalho de parto e parto
Authors: Sanches Maria Elisângela Torres de Lima , Barros Sonia Maria Oliveira de , Santos Amuzza Aylla Pereira dos , Lucena Tâmara De Oliveira
Published: December 2019

Objetivo: descrever as condutas utilizadas pela enfermeira obstétrica na assistência ao trabalho de parto e parto. Método: estudo observacional, descritivo e retrospectivo, realizado em duas maternidades de Maceió-Alagoas com 138 prontuários. A coleta de dados se deu por meio do partograma e da declaração de nascidos vivos que ficam anexadas ao prontuário. As variáveis foram agrupadas em categorias e descritas em percentuais e variáveis categóricas. Resultados: foi possível observar que não houve diferença, estatisticamente significante entre as instituições (p<0,05) nem em relação à idade, nem escolaridade. Já em relação às variáveis obstétricas, notou-se que houve diferença estatisticamente significante entre as instituições (p<0,05) em relação à paridade, idade gestacional, posição materna, uso de ocitocina e complicações. Conclusão: As ações realizadas pelas enfermeiras na assistência ao trabalho de parto e parto neste estudo estão dentro de um contexto de mudança real de paradigma e de postura frente às evidências científicas.
Prevalência do diagnóstico de enfermagem Mobilidade Física Prejudicada em pessoas com esclerose múltipla
Authors: Silva Thainá Câmara da , Menezes Harlon França de , Santos Rebecca Stefany Da Costa , Góis Mariana Melo Da Cruz Domingos , Alencar Olga Alice , Silva Richardson Augusto Rosendo da
Published: December 2019

Objetivos: identificar a prevalência do diagnóstico de enfermagem Mobilidade Física Prejudicada, suas características definidoras e fatores relacionados em pessoas com Esclerose múltipla e verificar a associação entre ambos e suas razões de prevalência. Métodos: estudo transversal com 113 pacientes em um hospital da região Nordeste do Brasil. Para a análise dos dados utilizou-se os testes de qui-quadrado de Pearson e exato de Fisher, sendo calculadas também as razões de prevalência. Resultados: o diagnóstico esteve presente em 89% da amostra e as características e fatores que apresentaram associação foram: alterações na marcha; instabilidade postural; movimentos descoordenados; redução nas habilidades motoras finas e grossas; depressão; força muscular diminuída e prejuízo músculo esquelético. Conclusão: o diagnóstico apresentou-se com elevada frequência na amostra, o que permite identificar as necessidades de intervenções que diz respeito à capacidade funcional do individuo, potencializando seu rendimento funcional e pessoal, através do planejamento do cuidado e da assistência qualificada.
Influência de variáveis do período pós-parto na qualidade de vida de puérperas
Authors: Silva Sarah Gazarra Ferreira da , Condeles Paulo César , Parreira Bibiane Dias Miranda , Silva Sueli Riul da , Paschoini Marina Carvalho , Ruiz Mariana Torreglosa
Published: December 2019

Objetivo: analisar a qualidade de vida (QV) das puérperas e correlacioná-la com variáveis sociodemográficas, clínicas, obstétricas e neonatais. Método: estudo quantitativo, de delineamento transversal realizado em um hospital de ensino de Uberaba-MG. Foram entrevistadas 103 puérperas. Os dados foram coletados em 2017. Foram analisados por estatística descritiva simples, correlação de Pearson e o Teste t de Student. Para mensurar os escores de QV foi utilizado o instrumento Índice de Qualidade de Vida de Ferrans e Powers. O projeto foi aprovado pelo Comitê de Ética em Pesquisa. Resultados: puérperas adolescentes, renda superior a dois salários, número de consultas pré-natal, recém-nascido (RN) macrossômico e Apgar no primeiro minuto favoreceram a melhor QV. Intercorrências durante gestação e/ou durante o parto, problemas de saúde do RN e etilismo prejudicaram a QV. Conclusão: as puérperas apresentaram altos escores de QV, destacando-se os domínios família e psicoespiritual. Aspectos sociodemográficos, clínicos, obstétricos e neonatais influenciaram a QV.
(EX)POSIÇÕES DE UM CORPO VIBRÁTIL: CONSIDERAÇÕES SOBRE CORPO E HUMANIZAÇÃO
Authors: Ramos Renata Fernandes , Baldow Thomaz Guimarães
Published: December 2019

Ao abordar as dimensões sensoriais e estéticas, este texto destaca experiências e narrativas nas quais é possível explicitar movimentos e relações entre corpo e humanidade. Conhecer histórias e procedimentos de uma negação não deve nos impedir de rememorar seus artifícios mais sutis ou duvidar de suas reelaborações, pelo contrário. Talvez, seja imprescindível suscitar as marcas e os procedimentos de uma negação, que se embaralham e ao se confundir, fazem perpetuar suas impregnações. E talvez seja ainda mais urgente trazer ao jogo algumas táticas e noções que não se rendem à lógica que tenta deter a dinâmica de um corpo em movimento, que se reinventa nas dimensões de seus silêncios, ressonâncias e vibrações, e não cede aos dispositivos de captura de sua humanidade.
O JOGO COMO EXPERIÊNCIA ESTÉTICA: APRENDIZAGENS DE UM CORPO BIOGRÁFICO NA FORMAÇÃO DE PROFESSORES
Authors: Kemel Zanella Andrisa , Moura Lorenzoni Cândice , Borges Santos Camila
Published: December 2019

Neste artigo buscamos problematizar como o corpo biográfico pode ser mobilizado no contexto da formação de professores, a partir da vivência com jogos teatrais.  O objetivo é fazer provocações pensando nesse corpo biográfico que ao jogar vivencia a possibilidade da experiência estética. O ponto de partida para esta escrita é a nossa experiência como atrizes, em nossa formação inicial e como professoras de Cursos de Graduação em Pedagogia e Teatro Licenciatura de duas instituições públicas de ensino superior. Neste sentido, em nossos processos pedagógicos, artísticos e docentes, o corpo, o teatro, a experiência estética aparecem como mola propulsora para (re)pensarmos nossos modos de fazer e de agir na educação. Estes aspectos são motes para aprofundarmos a discussão aqui proposta.
Care providers' use of the Mental Health Code of Practice found wanting
Authors: Frankova Helena
Published: December 2019

Following an evaluation of the way in which the Mental Heath Code of Practice is being applied, the Care Quality Commission's conclusion is damning. The Code of Practice, designed to protect the rights of individuals, is not being used as intended. Helena Frankova investigates
A crowning moment for HMRC?
Authors: Bernstein Adam
Published: December 2019

New legislation coming into effect in 2020 means that, if a business fails, HMRC will take precedence in the line of creditors pursuing owed monies. This may mean a rise in the costs of borrowing and investment. Adam Bernstein discusses the potential impact of this on the care industry
Development of a Round Bale Weighing System for Spring-Loaded Bale Ramps
Authors: Loftis Perry Jonathan , Kirk Kendall R. , Mueller John D. , Andrae John G.
Published: December 2019

Abstract.

Knowledge of individual hay bale weights can be beneficial to both the hay producer and the consumer. A weighing system that utilizes a pressure transducer has been developed for round balers that are equipped with a hydraulic kicker plate; however, a large amount of round hay balers on the market are manufactured with a spring-loaded bale ramp. The weighing system developed here tested two different sensors (accelerometer and gyroscope) mounted in three different locations of a model spring-loaded ramp to predict the weight of various cylinders (PVC pipe filled with concrete) as they were dropped on to the ramp. The sensor device was mounted at the end of the ramp furthest from the pivot point, in the middle of the ramp, and directly in front of the pivot point. Of the two sensors tested, a gyroscope was found to be the sensor with the lowest prediction error when correlating a peak response of the sensor to the weight of a cylinder. Accuracy of the sensor response was improved from an absolute error of 31.4% to 15.4% when the sensor was mounted directly in front of the pivot point of the ramp. The accuracy of the gyroscope was further improved to an absolute error of 3.6% by correlating a single axis response to cylinder weight for a particular diameter of cylinders. Repeatability of the test in a lab setting suggested that the use of a ramp-mounted gyroscope might be suitable to predict the weight of a bale as it is ejected from a round baler onto a spring-loaded bale ramp. In this configuration, the bale weight is estimated as a function of the peak angular rate of change of the ramp as it is forced to the ground. On-baler field data from a gyroscope mounted in front of the pivot point on a spring-loaded bale ramp showed promising results, but additional research is needed before conclusions can be made about the accuracy of a gyroscope under field conditions. Keywords: Forage, Forage harvester, Hay, Hay baler, Precision agriculture, Weighing system.
Identifying Advantages and Disadvantages of Variable Rate Irrigation: An Updated Review
Authors: O’Shaughnessy Susan A , Evett Steven R. , Colaizzi Paul D. , Andrade Manuel A , Marek Thomas H. , Heeren Derek M. , Lamm Freddie R. , LaRue Jacob L.
Published: December 2019

Variable rate irrigation (VRI) sprinklers on mechanical move irrigation systems (center pivot or lateral move) have been commercially available since 2004. Although the number of VRI, zone or individual sprinkler, systems adopted to date is lower than expected there is a continued interest to harness this technology, especially when climate variability, regulatory nutrient management, water conservation policies, and declining water for agriculture compound the challenges involved for irrigated crop production. This article reviews the potential advantages and potential disadvantages of VRI technology for moving sprinklers, provides updated examples on such aspects, suggests a protocol for designing and implementing VRI technology and reports on the recent advancements. The advantages of VRI technology are demonstrated in the areas of agronomic improvement, greater economic returns, environmental protection and risk management, while the main drawbacks to VRI technology include the complexity to successfully implement the technology and the lack of evidence that it assures better performance in net profit or water savings. Although advances have been made in VRI technologies, its penetration into the market will continue to depend on tangible and perceived benefits by producers. Keywords: Center pivots, Crop water use efficiency, Irrigation, Management zones, Moving sprinkler irrigation systems, Precision irrigation, Sensor based systems.
Ratings of Rice Leaf Blast Disease Based on Image Processing and Stepwise Regression
Authors: Xiao Maohua , Deng Ziang , Ma You , Hou Shishuang , Zhao sanqin
Published: December 2019

Abstract.

Multi-feature fusion of morphology and texture features

Stepwise regression analysis to distinguish disease areas from natural brown areas

Calculate the ratio of the total area of the diseased area to the area of the leaf area to obtain the disease level

Abstract. In this research, an evaluation method involving digital image processing and stepwise regression was studied to establish an efficient and accurate rating system for studying rice blast disease. For this purpose, the R-G image was segmented by using maximum interclass variance method in which the lesion and naturally withered region was extracted from the leaves. Then, 240 lesion areas and 240 natural yellow areas were selected as samples. During the experiment, ten morphological features and five texture features were extracted. Subsequently, for lesion identification, stepwise regression analysis, SVM and BP neural network were used. In the results, regression analysis of naturally yellow areas showed the highest accuracy in lesion identification, reaching 93.33% for disaster-level assessment of identified lesion areas. On the basis of the results, it is evident that 153 samples were correctly classified into divisions of 160 tested different rice blast leaves, with 95.63% classification accuracy. This study has introduced a new method for objective assessment of leaf blast disease. Keywords: Disease classification, Lesion identification, Maximum interclass variance method, Rice blast, Stepwise regression.
Effect of Collector Size on Center Pivot Water Depth Catch
Authors: Rogers Danny H. , Aguilar Jonathan P. , Clark Gary A. , Wiens Scott W.
Published: December 2019

Abstract. The ASABE standard on uniformity testing of a center pivot system contains specifications on the collector size to measure the applied water depth. The standard was developed before many of the current sprinkler application devices were developed. A study was conducted to compare the catch depths of five collector sizes (opening diameters of 5.5, 10, 14.8, 20, and 27.4 cm, referenced as C2, C4, C6, C8, and C10) for three types of sprinkler application devices: spinning plate, fixed plate, and wobbling plate sprinkler systems using four 5x5 Latin squares. Each collector’s water depth was measured and statistically analyzed. Two analysis of variance (ANOVA) tests of the collector size effect were reported. Past experimental results were also compared to this experiment’s results, which generally reaffirms the difficulty of consistently measuring irrigation application depth within the practical range of collector sizes. Based on sprinkler application devices, fixed plate tends to have a more consistent depth caught compared to wobbling plate and spinning plate. If the ideal collector size selection was based on minimum variability of depth measurements, then either C6 or C4 collectors could be used. This study showed that within the range of sizes used, collector size does not substantially affect measurement of application depths for center pivot sprinkler systems. Despite the challenging task, measurement is probably within 5% if an appropriate number of collectors are used. Keywords: Catch can collector size, Center pivot irrigation, Sprinkler packages, Uniformity.
Focusing pattern of axisymmetric Bessel–Gaussian beam with helical polarization under triangular modulation
Authors: Qiufang Zhan , Rongfu Zhang , Sitong Ding , Guanxue Wang , Xiumin Gao
Published: December 2019

Based on the theory of vector diffraction and the principle of triangular modulation, the focusing characteristics and patterns of an axisymmetric Bessel–Gaussian beam with helical polarization with quadratic radial correlation are studied. The results show that both the beam parameters µ and the triangular modulation parameters

n

can significantly change the intensity distribution of the focusing region. Under the same spiral parameter C, obvious lateral changes of the focusing pattern can be observed by changing either of the above two parameters. The focusing pattern can be changed from focusing ring to two parallel focal spots extending horizontally, and moreover, some parameters have obvious “self-reduction” characteristics, which is of certain significance for the application of Bessel–Gaussian beams in the field of optical micromanipulation.
Highly efficient and ultracompact InP/InGaAsP three-port trench-based couplers
Authors: Zhang Chenglong , Guan Baolu , Qi Bing , Liu Ke
Published: December 2019

Existing photonic couplers are limited by either large footprint or long interaction length. Here a highly efficient and ultracompact three-port trench-based coupler (TBC) is proposed on an InP platform in terms of the frustrated total internal reflection principle. A single slash-shaped narrow trench located at the “T” intersection of two InP/InGaAsP multiquantum well ridge waveguides forms the coupler. The finite-difference time-domain numerical method is utilized to optimize the parameterization of the couplers, such as splitting ratios and efficiency versus trench widths, lengths, locations, and angles. A single-mode 2 µm wide ridge waveguide coupler having a high aspect ratio trench filled with

A
l

2

O

3

was fabricated and characterized at 1.55 µm wavelength. The “trench-first” fabrication process is optimized to reduce its inherent insertion loss (IL), showing the IL within a range of 0.3–0.5 dB. The devices can outperform the state-of-the-art trench couplers by

≥

∼

24

times the figure of merit. These TBCs are thus promising candidates for applications in the next generation of photonic integrated circuits.
Influence of delay stage positioning error on signal-to-noise ratio, dynamic range, and bandwidth of terahertz time-domain spectroscopy
Authors: Takagi Shun , Takahashi Shogo , Takeya Kei , Tripathi Saroj R.
Published: December 2019

Terahertz time-domain spectroscopy (THz-TDS) employs a mechanical stage to introduce the time delay between pump and probe optical pulses during the sampling process of the time-domain electric field of a terahertz pulse. The positioning error and limited resolution of a mechanical delay stage cause an inaccurate sampling of a terahertz pulse. In this study, we numerically and experimentally investigated the influence of delay stage positioning error on the major characteristics of THz-TDS, such as bandwidth and dynamic range of the system, along with the signal-to-noise ratio (SNR) of the intensity spectra. We demonstrate that the positioning error in the delay stage not only reduces bandwidth and dynamic range of the measurement system but also decreases the SNR of the intensity spectra.
Linewidth study of pixelated aluminum nanowire gratings on polarization performance
Authors: Yu Miao , Song Zhengxun , Dong Litong , Li Li , Cao Liang , Li Wenjun , Song Yingying , Lei Li , Wang Zuobin
Published: December 2019

Nowadays, nanowire gratings are widely used in various applications such as imaging sensors and high-resolution microscopes. Structure parameters are the main factors that affect the optical performance of the gratings. This work aims to present the influence of the linewidth of pixelated aluminum nanowire gratings with a fixed period on the transmittance and extinction ratio in the visible region. By controlling the exposure doses of electron beam lithography (EBL), different linewidths of pixelated aluminum nanowire gratings with a period of 170 nm were fabricated. The significant effects of linewidth difference on the polarization performance were verified by the simulations of finite-difference time-domain (FDTD) software. The simulations were divided into two parts: the discussion of the pure aluminum without considering oxidation and the discussion of the surface aluminum being oxidized into the aluminum oxide. An optical system was built to evaluate the performance of the fabricated structures. The results show that the trends of the measurement results are consistent with that of simulation. This work will give a guide to the fabrication and evaluation of the nanowire gratings.
Design and analysis of a reactionless large-aperture fast steering mirror with piezoelectric actuators
Authors: Ran Bing , Yang Ping , Wen Lianghua , Du Rui , Yang Kangjian , Wang Shuai , Xu Bing
Published: December 2019

The reaction force of a fast steering mirror (FSM) directly transmits to the FSM’s base, leading to dynamic coupling interference to the optical platform and degradation of laser beam quality in an adaptive optics system. In this paper a

Φ

320

m
m

aperture symmetrically arranged reactionless FSM actuated by piezoelectric actuators was proposed. The corresponding dynamic equation about reaction force was established by rotational equation of Newton’s second law, and the equilibrium condition of reaction force compensation was deduced. Then, the finite element (FE) piezoelectric-coupling method was used to simulate dynamic characteristics, which shows that the elimination ratios of the reaction force are 99% at low frequency (at 50 Hz) and 94.1% at high frequency (at 120 Hz). The experimental results show that the first resonance frequency of the FSM is 159.82 Hz, the tilting angle is

±

1.3

′

, the reaction force at high frequency (at 120 Hz) is 112.95 N, and the elimination ratio of reaction force is 90.14%. The simulation and corresponding test results indicate that the developed reactionless FSM significantly eliminates reaction force and therefore improve the FSM’s stability and pointing accuracy.
Fast template matching method in white-light scanning interferometry for 3D micro-profile measurement
Authors: Huang Yiliang , Gao Jian , Zhang Lanyu , Deng Haixiang , Chen Xin
Published: December 2019

White-light scanning interferometry (WLSI) is an important measurement technique that has been widely used in three-dimensional profile reconstruction. Because of the effects of environmental noise and phase changes caused by surface reflection, existing WLSI algorithms have problems in measurement accuracy and measurement speed. Addressing these problems, this paper proposes a fast template matching method to determine precisely the zero optical path difference (ZOPD) position in the WLSI. Due to the uniform shape of the interference signals, a template interference signal can be obtained in advance by performing a least-square fitting or Fourier interpolation on an interference signal of one pixel. In the method, the ZOPD position is initially obtained by the centroid method. Then, the ZOPD position is determined by a precise matching process through moving the template interference signal on the measured interference signal. Through the two-step processes, the ZOPD position can be obtained precisely with much less time. The method was simulated and verified through the measurement of a spherical surface, a 1.8-µm-height standard step and a flip-chip substrate. The experimental results show that the proposed algorithm can achieve both high precision and fast measurement.
Laser-speckle-projection-based handheld anthropometric measurement system with synchronous redundancy reduction
Authors: Yang Xiao , Chen Xiaobo , Zhai Guangkun , Xi Juntong
Published: December 2019

Human body measurement is essential in modern rehabilitation medicine, which can be effectively combined with the technology of additive manufacturing. Digital image correlation based on laser speckle projection is a single-shot, accurate, and robust technique for human body measurement. In this paper, we present a handheld anthropometric measurement system based on laser speckle projection. A flexible retroreflective marker target is designed for multi-view data registration. Meanwhile, a synchronous redundancy-reduction algorithm based on a re-projected global disparity map is proposed. Experiment results validate that the proposed system is effective and accurate for different human body part measurements. Comparative experiments show that the proposed redundancy-reduction algorithm has high efficiency and can effectively preserve the features of complex shapes. The comprehensive performance of the algorithm is better than the other two tested methods.
Bilayer synchronous measuring method of curved screen based on a line-structured light-scanning sensor
Authors: Fang Changshuai , Zhu Linlin , Yan Ning , Zhang Xiaodong
Published: December 2019

Curved screens are widely used in smart wearables, optics, aerospace, and other display fields. To overcome the difficulty of overall quality evaluation of large-area curved screens, this paper proposes a novel measuring method to realize the bilayer synchronous measurement based on line-structured light scanning. The integrated shape information of the large bilayer curved screen can be obtained by only a single probe in one scanning step. The two-step image processing in the image and three-dimensional data space is proposed to reduce the noise due to the weak reflection from the bilayer screen. To realize the large-area curved screen measurement, a splicing algorithm based on the optimization principle is also proposed to rectify the position deviation of each splicing step. A curved mobile phone screen was measured, and the experimental results effectively proved the validity of the proposed method. A camera lens was also measured to prove its potential for other multilayer parts.