bluuebunny/crossref_metadata_2025 huggingface dataset:
Cuerpo en fuga, una imagen que se ausenta: revisando tres poemarios de Dulce María Loynaz
Authors: López Cruz Humberto
Published: January 2021

Este trabajo examina tres poemarios de Dulce María Loynaz, Versos, 1920-1938 (1938), Juegos de agua (1947) y Poemas sin nombre (1953) para pensar en una posible vigencia corporal y ver cómo hay poemas de Loynaz que se nutren de lo opuesto; o sea, una ausencia del cuerpo. La hablante lírica hace suya la idea para esbozar imágenes de cuerpos que tienen, como característica repetitiva, la referida ausencia corpórea. Como zócalo crítico, se sopesará una de las múltiples observaciones formuladas por Michel Foucault sobre el tema, con lo propuesto por Julia Kristeva acerca del dialecto resultante dentro de los límites textuales, tanto de significados como de significantes, y el establecimiento de un ritmo dentro de este límite. Estas ideas apoyan un análisis que intenta aproximarse a algunas composiciones de la poeta cubana.
Estudo de Validação de Instrumento para Mensurar Resiliência em Trabalhadores
Authors: Nunes Daiane , Melo de Araújo Marley Rosana
Published: January 2021

No contexto do trabalho, resiliência é entendida como a capacidade do sujeito de se adaptar e fortalecer mediante experiências de adversidade vivenciadas naquele ambiente. Tendo em vista a escassez de instrumentos para mensurar resiliência nesse cenário, este estudo objetivou validar a Escala de Resiliência em amostra de 600 trabalhadores de diferentes áreas profissionais. A análise dos dados foi executada por meio de Análise Fatorial Exploratória, extração dos coeficientes alfa de Cronbach e estatísticas descritivas para caracterizar a amostra.  Foram encontrados dois fatores: 1 – Autodeterminação (α: 0,76): conjunto de comportamentos e habilidades que dotam o sujeito da capacidade de ser agente causal em relação ao cumprimento de seus objetivos e metas estabelecidas (oito itens); 2 – Autoeficácia (α: 0,69): percepção do sujeito acerca de sua competência pessoal na resolução de tarefas e situações (10 itens).  Assim, este estudo apresenta à comunidade científica um instrumental válido e fidedigno para uso em outras pesquisas e intervenções.
Efficacy of Antibiotic Versus Probiotics As Adjuncts to Mechanical Debridement for the Treatment of Peri-Implant Mucositis
Authors: Alqahtani Fawaz , Alshaikh Maha , Mehmood Abid , Alqhtani Nasser , Alkhtani Fahad , Alenazi Adel
Published: January 2021

The objective was to compare the efficiency of probiotic therapy (PT) vs antibiotic therapy (AT) as adjuvants to nonsurgical-mechanical debridement (NSMD) for the treatment of peri-implant mucositis (Pi-M). Volunteers with Pi-M were encompassed. Therapeutically, patients were randomly divided into 3 groups: (a) Group 1: NSMD + PT; (b) Group 2: NSMD + AT; and (c) Group 3: NSMD alone. Peri-implant plaque index (PI), bleeding on probing (BOP), probing depth (PD), and crestal bone loss (CBL) were recorded at baseline and at 3 and 6 months follow-up. P < .05 was selected as the indicator of statistical significance. Forty-two male individuals (14, 14, and 14 in Groups 1, 2, and 3, respectively) were included. At 3 and 6 months of follow-up, PI (P < .01), BOP (P < .01), and PD (P < .01) were higher in Group 2 than Group 1. At 3 months of follow-up, PI (P < .01), BOP (P < .01), and PD (P < .01) were higher in Group 3 than Group 2. At 6 months of follow-up, PI, BOP, and PD were comparable in Groups 2 and 3. In Group 3, PI, BOP, and PD were comparable with the respective baseline values at 6 months of follow-up. The CBL in all groups remained unchanged up to 6 months of follow-up. The NSMD with adjuvant PT is more effective than adjunct AT for the treatment of Pi-M for up to 3 months.
A IMPORTÂNCIA CLÍNICA DOS ACHADOS DO EXAME FÍSICO DO APARELHO CARDIOVASCULAR
Authors: Macedo Jefferson Lessa Soares de , Santos Neto Leopoldo , Macedo Vanice
Published: January 2021

Resumo: Este trabalho verificou, através de uma revisão bibliográfica, a credibilidade e a importância clínica dos achados de exame físico do aparelho cardiovascular. Detectando, inclusive, a etiologia e as estratégias para minimizar ou previnir a discordância clínica. Observa-se a espantosa acurácia do exame físico em certas ocasiões; e, em outras, a pobre correlação dos achados de exame físico com os estudos de imagem.
FISIATRIA: PROJETO INTEGRADO DE AVALIAÇÃO DO ENSINO MÉDICO
Authors: Barbosa Janete Viccari , Santos Antonio Cardoso dos , Bordin Ronaldo , Areson-Pandikow Helena Maria
Published: January 2021

Resumo Este estudo descreve os resultados quanto ao treinamento em habilidades psicomotoras da Disciplina de Reabilitação Médica, destinada aos académicos do 9º semestre, nos semestres 92/1 e 93/1, sendo parte do Projeto Integrado de Avaliação do Ensino Médico, referente às disciplinas do Curso de Graduação em Medicina, da Universidade Federal do Rio Grande do Sul. Foram aplicados questionários investigando, inicialmente, a experiência prévia e após o estágio, as oportunidades auferidas pelo aluno quanto à assistência e desempenho de 19 habilidades consideradas básicas na área. As habilidades foram agrupadas em quatro grupos: exame físico, abordagem do paciente com dor, fisioterapia respiratória e motora e a reabilitação em algumas patologias. Observam-se baixos percentuais de assistência, ou desempenho das habilidades questionadas no semestre 92/1 que, com a reformulação da disciplina e do questionário, passaram, no semestre 93/1, a apresentar incremento significativo no nível de treinamento ofertado. Os resultados apontam para a necessidade de monitoramento continuo do treinamento dos alunos, para planejar e complementar as atividades de ensino.
Eficácia Percebida por Estudantes de Medicina no Aconselhamento de Fatores de Risco
Authors: Sobral Dejano T.
Published: January 2021

Resumo: O aconselhamento é um modo de comunicação educativa que tem um potencial crescente na prestação de serviços de prevenção. O propósito deste estudo foi examinar as percepções da auto-eficácia no aconselhamento e a relação dessas percepções com a vivência de um módulo de instrução ao paciente e com a etapa de preparação de estudantes de Medicina. Os dados foram obtidos mediante dois instrumentos: um questionário para apurar a auto-eficácia e as atitudes dos estudantes sobre o aconselhamento na redução de riscos para a saúde, e uma auto-avaliação dos resultados da aprendizagem no módulo. As percepções de auto-eficácia no aconselhamento foram moderadas em intensidade e significantemente relacionadas com os escores da auto-avaliação. Os níveis de auto-eficácia variaram entre áreas de aconselhamento tais como aboliçiio de tabagismo, redução de estresse e orientação alimentar. Não foram observadas diferenças de auto-eficácia entre estudantes com diferentes categorias de atitude sobre o aconselhamento. Em acréscimo, observou-se forte tendência para auto-eficácia crescente no papel de instrução ao paciente com etapas progressivas de preparação. Os resultados confirmam a utilidade da medida de desenvolvimento da auto-eficácia e reforçam a idéia da importância de práticas educativas específicas que visem à melhoria do desempenho no aconselhamento.
Aprendizagem: Contribuições para Pensar a Formação do Médico
Authors: Peixoto Maurício Abreu Pinto , Silva Rosana N. M. Bittencourt
Published: January 2021

Resumo: Reflexão teórica abordando a importância de investir na aprendizagem do aluno tanto quanto á investido na constituição de modelos curriculares integradores. O conhecimento sobre aprendizagem pode ser uma ferramenta de dupla função, tornando os aprendizes mais eficientes e os eficazes em sua atuação profissional. Aprender é elemento chave no processo contínuo de aprendizagem do médico tendo em vista um mundo velozmente mutável, os acentuados avanços na tecnologia da informação e as modificações nas relações de trabalho produção científica exigindo que os indivíduos sejam gerentes da sua própria formação. Ressalta-se ainda as diferenças existentes entre o ensino e a aprendizagem usando diversas análises conceituais; entre elas as metáforas do teatro e da dança, além dos problemas advindos da inadequação das posturas de aprendizagem do aprendiz, utilizando abordagem metacognitiva e crenças motivacionais.
The Structure and Properties of Fe(II) 1,10-Phenanthroline-Thiobarbiturate
Authors: Golovnev Nicolay N. , Molokeev Maxim S. , Sterkhova Irina V. , Ivanenko Timur Yu.
Published: January 2021

The structure of the mononuclear complex [Fe(Bipy)(H2O)2(Htba)2]∙6H2O (I), where Bipy – 2,2’-dipyridine, H2tba – 2-thiobarbituric acid (C4H4N2O2S), was determined by single crystal X-ray diffraction technique (cif-file CCDC No. 1831367). Crystals I are rhombic: a = 17.4697 (7), b = 11.7738 (4), c = 13.4314 (5) Å, V = 2762.6(2) Å3, space group Pnma, Z = 4. Two nitrogen atoms of the Bipy molecule and two water molecules are located in the equatorial plane of the octahedral complex, and two S-coordinated Htba− ions the axial positions are occupied. The structure is stabilized by N−H∙∙∙O, O−H∙∙∙O, С−H∙∙∙O, C−H∙∙∙S intermolecular hydrogen bonds and π–π interaction between Bipy and Htba−. The compound is characterized by the methods of powder X-ray diffraction, thermal analysis, and IR spectroscopy
Estudio de las competencias de un director para un liderazgo efectivo en sectores vulnerables en la comuna de Antofagasta
Authors: Vera Erices Gina
Published: January 2021

La investigación muestra que el liderazgo educativo es un factor de primer orden en la mejora de los resultados, evidenciando que es posible identificar ciertas características comunes de los directores que obtienen un buen desempeño y que son de vital importancia para influir en la mejora de las prácticas docentes.  Necesitamos hoy, más que nunca, investigaciones que identifiquen el perfil y las prácticas de liderazgos efectivos de los directores exitosos para asegurar el cambio educativo, y que puedan contribuir a mejorar la calidad de educación de nuestros estudiantes.  Esta investigación se planteó como objetivo determinar qué competencias debe tener un director para liderar una escuela efectiva en sectores vulnerables de la comuna de Antofagasta.  La investigación se realizará a través del método de investigación cuantitativo.  El objeto de estudio será el director y su liderazgo.  La técnica de recolección de datos será un cuestionario aplicado en dos establecimientos municipales.  Los datos obtenidos de las encuestas, serán codificados de acuerdo a las dimensiones del liderazgo a la que pertenecen y se analizarán los resultados de la investigación a través de métodos estadísticos, de los cuales se inferirán los resultados del estudio y el análisis descriptivo de los mismos.
La neurodidáctica y la educación emocional para combatir el síndrome de Burnout
Authors: Marín Perabá Cristina , Zamora López Pilar
Published: January 2021

Cada vez más son los trabajadores que sufren el síndrome de Burnout, el síndrome que provoca estrés y ansiedad por motivos laborales con carácter crónico. De entre sus causas más usuales, se encuentran hacer un trabajo que necesite mucha energía o trabajar en ámbitos que requieran mucha atención.  Por su parte, el ámbito de la Neurodidáctica, se encarga de conocer el desarrollo del funcionamiento del cerebro. Si se aúnan la atención a la diversidad en los centros escolares junto con la falta de conocimiento de las características de cada una de las diversidades de los estudiantes, puede surgir en el profesor el denominado síndrome de Burnout, causado por la gran atención continuada que requiere este alumnado. En este trabajo se plantea la Neurodidáctica como ayuda para disminuir los altos niveles de estrés y ansiedad que sufre el profesorado con el síndrome de Burnout, ya que, si se conoce el funcionamiento del cerebro en el alumnado con diversidad funcional, se conocerá mejor el campo de actuación con estos discentes, y por lo tanto, disminuirán los casos de profesores con ansiedad.
Critical review: From neglect to a new look: the construction of the National Policy of Integral Attention to Users of Alcohol and Other Drugs as a conquest of the Brazilian Psychiatric Reform. The case of Recife (PE)
Authors: De Barros Camargo Stefany
Published: January 2021

This work is based on secondary sources such as the conquest of the Brazilian Psychiatric Reform. It is an exploratory study, with the objective of briefly examining the structuring and transformations of mental health policies in Brazil. On the other hand, it seeks to highlight fragments in the enunciation mechanisms that strengthen services aimed at caring for people in psychic suffering. In conclusion, the analysis shows that, in some people, society shows different behavior patterns and norms, and they react differently to the problem in question. And that mental illness is now considered a social degeneration. And in this sense, we emphasize the necessary care to the carriers of this disease, as well as the importance of a quality nursing care. And this aspect, is emphasized in some congresses and seminars held for a social education, mainly in the aspect of education and awareness of drug use. And reinforced the construction of the National Policy of Integral Attention to Users of Alcohol and Other Drugs as a conquest of the Brazilian Psychiatric Reform. The case of Recife (PE).
A leitura e sua contribuição no processo da aprendizagem na alfabetização
Authors: Tavares de Lima Maria José , Firmino da Silva Marcelo
Published: January 2021

Este artigo tem como temática a leitura e sua contribuição no processo da aprendizagem na alfabetização. O objetivo é de incentivar e estimular o prazer e o interesse pelo mundo da leitura, e contribuir de forma eficaz para alfabetização, enriquecendo as aulas dos professores através de dinâmicas e possibilitando uma troca de teoria e prática das relações sociais em sala de aula. A metodologia aplicada foi à revisão bibliográfica da temática em estudo através do Google Acadêmico, onde foi selecionado trabalhos de vários pesquisadores na área. Conclui-se que a proposta da leitura no Ensino Fundamental é formar leitores críticos e participativos, que saibam agir sempre utilizando a ética e o moral, que é através dos conhecimentos adquiridos todos possam crescer com uma visão de mundo. A leitura é como aspecto fundamental para o desenvolvimento da nossa vida escolar e tem um espaço fundamental na alfabetização para além do ensino sistematizado.
Hubungan sikap tubuh saat bekerja dengan keluhan muskuloskeletal akibat kerja pada karyawan
Authors: Salsabila Queena Raihan , Wartono Magdalena
Published: January 2021

LATAR BELAKANG Gangguan muskuloskeletal akibat kerja adalah gangguan pada struktur muskuloskeletal pada leher, punggung, ekstremitas atas dan bawah yang disebabkan oleh mikro-trauma kumulatif akibat biomekanikal atau pajanan lain dari pekerjaan. Gangguan ini jarang mengancam jiwa, tetapi dapat meningkatkan absenteisme, menurunkan produktivitas kerja, menurunkan kualitas hidup, dan meningkatkan beban finansial. Tujuan dari penelitian ini adalah untuk mengetahui hubungan risiko sikap tubuh saat bekerja dengan timbulnya keluhan muskuloskeletal. Selain itu penelitian juga melihat faktor lain seperti masa kerja dan karakteristik jenis kelamin serta hubungannya dengan keluhan muskuloskeletal.

METODEPenelitian menggunakan studi observasional analitik cross-sectional dengan jumlah responden 60 pekerja kantor. Risiko sikap kerja dinilai dengan menggunakan Rapid Upper Limb Assessment (RULA) dan keluhan muskuloskeletal dinilai dengan menggunakan Nordic Body Map (NBM). Selain itu juga dikumpulkan data tentang jenis kelamin dan masa kerja. Data yang dikumpulkan dianalisis dengan menggunakan uji Fisher.

HASILHampir sebagian besar pekerja (91.7%) mengalami keluhan muskuloskeletal dan sebagian besar di antaranya adalah pekerja laki-laki (96.9%). Keluhan muskuloskeletal yang tinggi didapatkan pada pekerja yang sudah bekerja lebih dari 4 tahun (96.7%) dan juga pada pekerja dengan sikap kerja berisiko tinggi (90%) namun berdasarkan hasil uji statistik tidak didapatkan hubungan antara jenis kelamin, masa kerja dan tingkat risiko sikap tubuh dengan keluhan muskuloskeletal (p> 0.005).

KESIMPULANPrevalensi keluhan muskuloskeletal pada pekerja kantor sangat tinggi demikian juga dengan tingkat risiko sikap tubuh saat bekerja. Pada penelitian ini tidak didapatkan hubungan antara risiko sikap tubuh, jenis kelamin dan masa kerja dengan keluhan muskuloskeletal. Dengan demikian perlu diteliti faktor-faktor lain yang mungkin menyebabkan keluhan ini. Walaupun tidak didapatkan hubungan yang bermakna, angka prevalensi yang tinggi ini perlu menjadi perhatian bagi perusahaan.
Attitudes towards disabled persons scale in Nepali: development and validation
Authors: Shrestha Susmita , Amatya Yogendra , Ghimire Anup
Published: January 2021

Background: Continuous advocacy regarding the attitudes of individuals towards individuals with disabilities in the United States, public awareness is still mostly negative. For Persons with disabilities, research has highlighted the fact that these negative attitudes do interfere with their work environment, affecting their self-esteem and health care. Attitude of general population towards person with disability has not been studied. There is hardly any literature regarding the attitude of common people towards person with disability in Nepal. The objective was to translate and validate attitudes towards disabled persons (ATDP) scale into Nepali language. In addition, it was also attempted to compare the attitudes towards persons with disability across gender.

Methods: A survey method using questionnaire was conducted and administered on people of Nepal. Attitudes toward disabled persons scale were first translated into Nepali language as per the guidelines by WHO. The translated scale was administered on 114 native Nepali speakers for validation. Internal consistency and gender differences in ATDP scores were calculated.  

Results: The results of the study showed that the questionnaire had good internal consistency. There was no significant difference in scores across gender. ATDP scores obtained from Nepali population were lower than the scores from other developed countries.

Conclusions: The present study indicates that the translated and validated version of ATDP scale in Nepali language can be used as a standard tool in assessing attitudes towards person with disability in Nepal.
Viscosity Ratio Effect on Drop Deformation in the Boundary Layer
Authors: Nourbakhsh Amireh , Piri Souzan , Goudarzi Mohsen , Bayareh Morteza
Published: January 2021

In the present study, the motion of a droplet in the boundary layer is investigated numerically. Volume of Fluid method is employed to solve the governing equations. It is found that the presence of the droplet leads to an increase in the pressure inside the boundary layer and on the wall. The results show that the droplets create a vortex on the bottom surface. The friction coefficient increases due to the presence of the droplets and is reduced before and after the droplet due to the formation of a vortex. It is concluded that increasing the viscosity and reducing the density at the same time will not affect the velocity and friction coefficient. It is shown that increasing the radius of the droplet increases the stress and thus decreases the boundary layer velocity. As the Reynolds number increases, the amount of surface friction coefficient decreases. By adding nanoparticles into the pure water, surface friction coefficient increases, especially in the region where the droplet is present.
Empowered patient autonomy in the network in the selected area of theoretical reflection and empirical analysis
Authors: Łaska-Formejster Alicja
Published: January 2021

The aim of the article is to perceive the understanding of autonomy by conscious, empowered patients through an awareness of responsibility for their own health and knowledge of their rights. This perception was made by analysing their statements published in 16 online medical forums and portals, which referred to the components of autonomy. One hundred and twenty-seven posts qualified for qualitative analysis. Based on the research findings, it was concluded that the authors of the posts (intuitively) properly identified autonomy (although they did not use this notion as such), paying attention to principal, formative qualities and inherent rights. They identify these qualities based on the course and characteristics of interactions between patients and healthcare practitioners (exposing their deficits), within the context of participants’ rights and duties as well as their opinions about physicians’ qualifications and desired (mainly soft) competences.
О мотивационной соотносительности лексико-семантических дериватов (на примере одного славянского корня). Полисемия слова и корня
Authors: Червинский Пётр
Published: January 2021

С привлечением этимологического, исторического, диалектного, а также современного общеупотребительного литературного материала рассматривается семантика, в первую очередь, русскоязычного корня хол(о)-, отчасти в сопоставлении с рядом славянских языков в контексте особенностей и отличия. Последовательно выводится общее и типичное в значениях таких слов, как холостой, холоп, холуй и др. На базе этого общего прослеживаются далее возможные ответвления в развитии исходных значений. Обращается внимание на специфику не выделяемых уже в настоящее время суффиксов -ст-, -п-, -уй и подобные, с представлением их воздействия на семантику корня при формировании лексем. Анализ подводит к возможности выделения парадигматико-концептуальной схемы и потенциала, лежащих в основе моделирующего развития определяемого круга слов с опорой на их корневую семантику. В завершение выводится и представляется в наглядном типологическом виде, с опорой на составляющие семантические признаки, указанная концептуальная схема-модель для семантики холостой в отношении русскоязычного ареала, с учетом общеупотребительных и диалектных употреблений.
Biofortification of Zn and Fe in Chickpea through Agronomic Intervention in Medium Black Soils of Karnataka
Authors: Rathod Pandit S. , Patil D.H. , Bellad S.B. , Haveri Rachappa V.
Published: January 2021

Background: Bio-fortification, the process of integrating nutrients into food crops, provides a sustainable and economic way of increasing the density of micronutrients in important staple crops. Agronomic bio-fortification is the easiest, practicable and fastest way for bio-fortification of pulse grains with Fe, Zn, or other desirable micronutrients. Increasing micronutrient rich foods and improving dietary diversity will substantially reduce micronutrient disorders. Methods: A field experiment was conducted during the post rainy seasons of 2015, 2016 and 2017 at Zonal Agricultural Research Station, Kalaburagi, University of Agricultural Sciences, Raichur (Karnataka) to know the effect of soil and foliar fertilization of Zn and Fe on chickpea genotypes. Two genotypes (Annigeri 1 and JG 11) and six fertilization treatments (Control, 0.5% Zn, 0.1% Fe, Zn + Fe, seed treatment with 2 g Zn kg-1 seeds and soil application of Zn) were tested in medium black soils in split plot design with three replications. Result: The pooled data of three seasons indicated that the genotype JG 11, performed better than Annigeri 1 in terms of seed yield (1309 kgha-1), net returns (₹ 31634ha-1) and B: C ratio (2.52). On biofortification of Zn and Fe, foliar fertilization of Zn @ 0.5% + Fe @ 0.1% at flowering stage recorded significantly higher grain yield (1321 kgha-1), net returns (₹ 31179ha-1) and B: C ratio (2.44) over rest of the treatments. Further, foliar fertilization of Zn + Fe had significant influence on nutrient concentration (Zn and Fe) in chickpea grains. Thus, it could be concluded that combined biofortification of Zn + Fe to chickpea crop could be the viable agronomic intervention for getting higher productivity and nutritional security.
Evaluation of Organic Weed Management Practices on Growth, Yield and Weed Control Efficiency in Soybean-chickpea Sequence under Irrigated Condition
Authors: Chavan A.A. , Narkhede W.N. , Garud H.S.
Published: January 2021

Background: Weeds are widely reported as a key constraint in organic agriculture. Soybean-chickpea is important cropping sequence adopted in Maharashtra State under irrigated condition. Weed management is a serious problem in both the crop and it mostly controlled through chemical weed control. Today, widespread use of herbicides has resulted in purporated environmental and health problem as well as residual problems to succeeding crops. Now a days residue free food requirement is high. In organic farming cultural and mechanical methods are necessary to break the weed cycle. So, keeping this point in view present investigation was carried out to evaluate organic weed management practices on growth, yield and weed control in soybean-chickpea sequence under irrigated condition. Methods: A field experiment was conducted during Kharif and rabi seasons of 2017-18 and 2018-19. The present investigation consisted of ten weed management practices viz. two hand weeding at 20-25 and 45-50 DAS, one hoeing 20-25 DAS + one hand weeding at 45-50 DAS, soybean + sunhemp incorporation after 35-40 DAS in kharif season and chickpea + safflower (2:1) in rabi season, stale seed bed + reduced spacing + 2 tonne of wheat straw + one hand weeding at 25 DAS, soil mulch at the time of sowing + one hand pulling at 25 DAS, incorporation of neem cake 1.5 tonne/ ha 15 days before sowing + one hand weeding at 25 DAS, soil solarization with 25 μ polythene mulch during summer + one hand weeding at 25 DAS, mulching with straw, weed free and weedy check. Result: The higher values of growth attributes was recorded by weed free treatment which was on par with two hand weeding at 20-25 and 45-50 DAS and soil solarization with 25 μ polythene mulch during summer + one hand weeding at 25 DAS and significantly superior over rest of the treatments during both the year study. Application of stale seed bed with reduced spacing and 2 tonne of wheat straw along with one hand weeding 25 DAS recorded higher soybean equivalent yield followed by soybean + sunhemp incorporation (35-45DAS) in kharif and chickpea + safflower (2:1) in rabi season during both the year. The lower weed density, dry weight and highest weed control efficiency at 40 days after sowing for both monocot and dicot weeds was recorded by weed free treatment followed by soil solarization with 25 μ polythene mulch during summer + one hand weeding at 25 DAS in soybean and chickpea during both the year.
Reflexões e conhecimentos evidenciados por professores que estudam área de figuras planas
Authors: Silva Angelica da Fontoura Garcia , Silva Susana Maris França da , Galvão Maria Elisa Esteves Lopes
Published: January 2021

This study aims to discuss and understand the process of (re)significance of teachers’ professional knowledge based on discussions and reflections carried out by a group of teachers who teach mathematics for the initial years of the elementary education. The teachers studied how to calculate the area of plane figures using squared arrays. This study is based on Zeichner’s and Serrazina’s research to discuss the reflection on the practice and, in Ball, Thames, and Phelps, to analyse the (re) significance of the knowledge of the professionals involved. The data analysed were collected during the group meetings at the school where the participants taught. Through the analyses of the discussions held, we could observe that the teachers expanded their common and specialised content knowledge, mainly in relation to the strategies to calculate area, and started using reconfiguration of the figures and formulas of area more assertively. Mutual support allowed them to identify their own needs and then modify their analyses of the strategies for area calculation to be adopted.
Raciocínio covariacional em cálculo
Authors: Gonçalves William José , Trevisan André Luis , Silva Daniel Daré Luziano da , Ribeiro Alessandro Jacques
Published: January 2021

Visto que analisar de forma coordenada as variações de duas grandezas interdependentes (raciocínio covariacional – RC) é um aspecto central da aprendizagem do Cálculo Diferencial e Integral, discutimos habilidades do RC mobilizadas durante discussões matemáticas desencadeadas pelo trabalho com tarefas. Realizamos uma investigação qualitativa, de cunho interpretativo, a partir de recortes da produção escrita e trechos de diálogos de um grupo de estudantes de Engenharia que cursaram essa disciplina, no trabalho com uma tarefa envolvendo uma garrafa que enche. A tarefa possibilitou a exploração de habilidades como: constituir quantidades e raciocinar sobre seu processo de medição; imaginar quantidades variando continuamente; coordenar pares de quantidades que variam juntas (tempo, altura, volume e raio). Além disso, os estudantes foram capazes de estabelecer uma relação entre a altura e o volume, construindo uma representação na qual a inversão na concavidade do gráfico mostrou compreensão da existência de uma mudança na taxa de variação nessa situação.
A Graphical Method for Determining Truss Stability
Authors: Millar Cameron , McRobie Allan , Baker William
Published: January 2021

Graphic statics has been used for over 150 years, having been pioneered by the likes of Maxwell, Cremona, Culmann and Rankine, and has recently seen a resurgence in popularity because of its use in design. However, it is only concerned with equilibrium; as any engineer will testify,
whilst equilibrium is necessary, it is not sufficient and stability must also be obtained. This paper develops a novel graphical method for determining the stability and stiffness of prestressable structures. By considering the weighted sum of the Maxwell-Minkowski diagram, the stiffness and
stability of the structural mechanisms can be determined. This work extends to cover structures with multiple mechanisms and has been compared to results obtained through experimentation and the finite element method. Furthermore, it extends the work on stiffness to provide a graphical method
to estimate the natural frequency of a truss. Whilst this method accurately determines the stiffness of structures, it represents a significant development in the field of graphic statics as it allows an engineer to 'eye-ball' the stability of a given truss. Engineers can also manipulate the
form and force diagrams, as desired, to adjust the stiffness of their structure accordingly, whilst being able to visualise the process. Much of the previous work in this area relies heavily upon large matrices, while this method allows a more intimate and hands-on alternative.
Adaptive Framework for Structural Pattern Optimization
Authors: Rivera Diego A. , Danhaive Renaud A. , Mueller Caitlin T.
Published: January 2021

This research outlines a new computational workflow for the design and optimization of patterned, perforated surface structures. Well-designed surface structures can be highly efficient on their own, but their potential for structural efficiency can be notably improved by deliberately
introducing specific aperture patterns. Patterned surfaces can also be used to produce more stimulating architectural environments, and even those of increasing complexity can be realized thanks to recent developments in digital fabrication. With this said, designers currently lack a streamlined
and rigorous approach for the exploration of patterned surface structures. This research aims to address this issue by advancing a recent work that employs NURBS-based isogeometric analysis to integrate structural analysis into an accessible CAD modeling platform. Specifically, this paper
proposes an adaptive pattern optimization framework formulated to save designers appreciable computational time. Not only does this framework offer a way to quickly visualize various design solutions, but it also provides the designer an important opportunity for design interaction and control
over design evolution, in turn lending itself as a versatile tool for the exploration and conceptual design of patterned surface structures.
Structural Equation Modeling in Motivation Analysis for Millennial Participation Related to General Elections in Indonesia
Authors: Amalia Zalfaa Nur , Ulya Rosyida Widadina , Hastuti Disty Ridha , Mardianto M. Fariz Fadillah
Published: January 2021

Structural Equation Modeling (SEM) is a statistical technique used to build and test the statistical models are usually in the form of causal models. SEM is a combination from factor analysis, path analysis, and regression. This method is a statistical approach that serves to test hypotheses about the relationship between observed variables and latent variables. In this paper, SEM is applied to determine the motivation of the millennial generation for the general election 2019 in Indonesia. Data was obtained by distributing questionnaires online according to procedures which were then analyzed using SEM. Millennial’s motivation is seen from the knowledge of the millennial generation on voting rights commitments in the 2019 general election in Indonesia. Based on the result, millennial generation is committed to using voting rights in the 2019 general election. All indicator variables from this study are significant to the millennial generation’s commitment to use their voting rights
Revisión rápida de los efectos de la variación de la temperatura y la humedad en la morbilidad y mortalidad por Covid-19
Authors: Hurtado-Díaz Magali , Cruz de la Cruz Julio , Blanco-Muñoz Julia , Azamar-Arizmendi Rosa Aurora , Riojas-Rodríguez Horacio
Published: January 2021

Objetivo. Resumir y analizar la evidencia de la asociación entre Covid-19 y factores climáticos. Material y métodos. Se utilizó la metodología de revisiones rápidas de Cochrane. Se buscaron artículos publicados del 1 de enero al 27 de abril de 2020 en una base de datos académica y preprints. Los títulos y resúmenes fueron revisados por dos investigadores y los textos completos por cinco investigadores. Resultados. De 354 artículos identificados, 26 cumplieron los criterios de elegibilidad establecidos. De éstos, 20 observaron una asociación inversa. Al evaluar su calidad, nueve calificaron con validez moderada, porque si bien ajustaron por covariables en el análisis, son estudios ecológicos. Conclusiones. A pesar de la homogeneidad de resultados, los factores climáticos explican un porcentaje pequeño de la variación de Covid-19. Son necesarios estudios con periodo de análisis más largo que capten tendencia y estacionalidad e incluyan factores de riesgo individuales.
Revisión rápida: monitoreo de la presencia e infectividad del virus SARS-CoV-2 y otros coronavirus en aguas residuales
Authors: Cruz-Cruz Copytzy , Rodríguez-Dozal Sandra , Cortez-Lugo Marlene , Ovilla-Muñoz Marbella , Carnalla-Cortés Martha , Sánchez-Pájaro Andrés , Schilmann Astrid
Published: January 2021

Objetivo. Describir la evidencia sobre la presencia e infectividad de SARS-CoV-2 y otros coronavirus en aguas residuales y su potencial uso como herramienta de vigilancia epidemiológica. Material y métodos. Búsqueda de publicaciones en PubMed y medRxiv desde enero 2003 hasta el 8 de junio de 2020 de acuerdo con la guía de revisiones rápidas de Cochrane. Resultados. Se incluyeron 29 publicaciones. El ARN de SARS-CoV-2 no infectivo se encontró en agua residual hospitalaria, agua residual cruda, tratada y lodos de plantas de tratamiento. Los niveles cuantitativos de ARN viral en agua residual presentan relación con el número de casos de Covid-19. SARS-CoV-1 y otros coronavirus permanecieron infectivos en agua residual cruda hasta por dos días. Conclusiones. Hasta esta revisión no existe evidencia sobre la presencia de virus infectivos de SARS-CoV-2 en agua residual cruda o tratada. La cuantificación de ARN de SARS-CoV-2 en agua residual es útil para la vigilancia epidemiológica.
Marcadores de funcionamiento renal en pacientes infectados por SARS-CoV-2. Revisión rápida de la literatura
Authors: Salazar-Martínez Eduardo , Hernández-Mariano José Ángel , Galván-Portillo Marcia , Baltazar-Reyes Mary Carmen , Parra-Cabrera María Socorro , Tamayo y Orozco Juan Alfredo , Cupul-Uicab Lea Aurora
Published: January 2021

Objetivo. Resumir la evidencia científica sobre las altera­ciones renales asociadas con la infección por SARS-CoV-2. Material y métodos. Se realizó una revisión rápida con la metodología Cochrane. Resultados. La enfermedad renal crónica (ERC) preexistente en pacientes con SARS-CoV-2 varió de 1 a 38% y la lesión renal aguda (LRA), de 2.9 a 86.4%. El pronóstico de la infección fue peor en pacientes con ERC y en aquellos con reserva renal remanente (RRR) intacta que desarrollaron LRA. El riesgo de muerte fue mayor (riesgo relativo combinado = 1.49; IC95%: 1.09-2.04) en pacientes infectados por SARS-CoV-2 con ERC preexistente. Los mar­cadores de RRR mostraron alteraciones en pacientes con SARS-CoV-2 graves y fatales; el marcador más utilizado fue la creatinina sérica. Conclusiones. La evidencia científica muestra la relevancia de la evaluación y monitoreo perma­nente de la RRR en pacientes hospitalizados por SARS-CoV-2 para mejorar el pronóstico de aquellos con ERC preexistente, así como de aquellos sin ERC que desarrollan LRA.
Wounds at risk of tetanus: an unexpected level of underimmunization in an Italian patient cohort
Authors: Piccini Gaia Bavestrello , Cavenaile Jean-Christophe , Bressan Maria Antonietta
Published: January 2021

Background: Tetanus is an acute and potentially fatal disease caused by Clostridium tetani, an extremely resilient pathogen. Approximately 5% of all visits to the Emergency Department are due to traumatic wounds and Clostridium tetani can infect these. According to several surveillance programs, the incidence of clinical tetanus in Italy is tenfold higher than in other industrialised countries. In 2010, Italy accounted for 57 (77%) of the 74 confirmed cases reported within the European Union. We decided to conduct a study to assess the proportion of patients immunised against tetanus in the Emergency Department (ED).Methods: Data from patients who presented to the Emergency Department of the Fondazione IRRCS Policlinico San Matteo between April 2016 and November 2017 with wounds potentially at risk of infection with Clostridium tetani were analysed. Tetanus Quick Stick (TQS) was used to identify patients immunized again tetanus. Results: Of the total of 1094 patients included, 506 had all the necessary data for analysis. Of these, 432 patients (85%) had no protection against tetanus. When stratified for age, underimmunization was 92% in patients above 60 years, 81% in patients between 46 and 60 years, 80% in patients between 19 and 45 years and 73% in children up to 18 years. In patients above 60 years of age, men are less underimmunized than women (80 vs 96%, p = 0.0095).Conclusions: This study highlights a very low level of immunization against tetanus. This occurs at all age. It could explain the higher incidence of tetanus in Italy in comparison to other European countries.The analysed data suggests the need of conducting awareness campaigns to increase the percent of patients vaccinated against Clostridium tetani.
The Potential and Effects of Saline-alkali Alfalfa Microbiota Under Salt Stress on the Fermentation Quality and Microbial
Authors: Sa Duowen , Lu Qiang , Ge Gentu , Sun Lin , Jia Yushan
Published: January 2021

Background: The objective of this study was to evaluate the chemical compositions and microbial communities of salt-tolerant alfalfa silage. Salt-tolerant alfalfa was ensiled with no additive control, and cellulase for 30 and 60 to 90 days. In this study, the dry matter (DM) content of the raw material was 29.9% DM, and the crude protein (CP) content of the alfalfa was 21.9% CP. Results: After 30 days of fermentation, the DM content with the cellulase treatment was reduced by 3.6%, and the CP content was reduced by 12.7%. After 60 days of fermentation, compared with alfalfa raw material, the DM content in the control group (CK) was reduced by 1%, the CP content was reduced by 9.5%, and the WSC (water-soluble carbohydrates) content was reduced by 22.6%. With the cellulase, the lactic acid content of the 30- and 60-day silages was 2.66% DM and 3.48% DM. The content of Firmicutes in salinized alfalfa raw material was less than 0.1% of the total bacterial content. Before and after ensiling, the microbes had similar composition at the phylum level, and were composed of Firmicutes, Actinobacteria, Bacteroidetes, and Proteobacteria. The abundance of Pantoea was dominant in fresh alfalfa. In the absence of additives, after 30 days and 60 days of silage, the dominant lactic acid bacteria species became Lactococcus and Enterococcus. Conclusions: The results showed that LAB (Lactobacillus, Lactococcus, Enterococcus, and Pediococcus) played a major role in the fermentation of saline alfalfa silage. It also can better preserve the nutrients of saline alfalfa silage. The fermentation time would also change the microbial community of silage fermentation.
The Usefulness of PET/CT In Detecting and Managing Cancers With Unknown Primary Site Depends on Histological Subtype
Authors: Nissan Ella , Amit Uri , Baron Leo , Zabatani Amit , Urban Damian , Barshack Iris , Davidson Tima
Published: January 2021

Introduction: We assessed the role of PET/CT in identifying and managing cancer of unknown primary site (CUP). Methods: We reviewed 64 patients' PET/CT scans with CUP performed during 2012–2019. Results: The median age was 65 years. Of 138-FDG-avid lesions, the mean SUVmax was10.6±6.0. Primary tumors (PT) were detected in 28(44%) patients. Detection was positive in only one(10%) patient with squamous cell carcinoma (SCC) histology, compared to 4/14(29%) with poorly differentiated carcinoma, 4/9(44%) with adenocarcinoma, 18/30(60%) of those for whom the origin could be presumed (p= 0.034 for SCC compared to other histologies). The mean age, mean SUVmax, and the distribution of organ involvement were similar between patients with and without discovered PTs, and also between patients with SCC and with the other histologies combined. However, those with SCC were less likely than the others to present with multi-lesion involvement, p<0.001. PET/CT interpretations apparently affected treatment of 8/28(29%) patients with PT detected and in none of the 35 whose PT was not discovered, p<0.001. Conclusion: PET/CT detected PT in almost half of CUP. However, it did not appear beneficial in those with SCC histology. PET/CT showed limited overall value in guiding clinical management but benefited a subgroup with discovered PT.
Compare the Initial Result of One Screw or Two Screws Fixation for Proximal Crescentic Metatarsal Osteotomy with Distal Soft Tissue Reconstruction in Severe Hallux Valgus Treatment
Authors: Mao Haijiao , Wang Linger , Li Jiahui
Published: January 2021

Proximal crescentic metatarsal osteotomy and distal soft tissue reconstruction have been introduced to correct severe hallux valgus (HV). The intrinsically unstable proximal first crescentic osteotomy depends on enough force fixation for stability. It is necessary to judge the number of fixation’s screw for osteotomy. Fifty two feet from 50 adult patients with severe HV were included in this study. The treatment was proximal crescentic metatarsal osteotomy with a single screw and distal soft tissue reconstruction in Group 1. The fixation with two screws with distal soft tissue reconstruction in Group 2. Clinical and radiological follow-ups were assessed after 4 and 12 months of operation. In Group 1, hallux valgus angle (HVA) was decreased from 46.4 ±3.28 to 19.9 ±4.70 after 12 months of operation. HVA was decreased from 45.1 ±3.45 to19.1 ±4.70 for group 2. For intermetatarsal angle (IMA) in Group 1, it was changed from 18.5 ±1.98 to 9.25 ±1.11 after 12 months of operation. For group 2, it was decreased from 18.3 ±1.81 to 9.53 ±1.70. Meanwhile, the American Orthopedic Foot and Ankle Society (AOFAS) score was improved from 63.1 to 83.9 after 12 months of operation for group1, and was improved from 64.3 to 82.8 for group2. Furthermore, the visual analogue scale (VAS) score was reduced from 4.5±1.01 to 1.7± 0.43 for group 1, and it was reduced from 4.7±0.92 to 1.7±0.55 for group 2 after 12 months of operation. The first metatarsal dorsal elevation was occurred in 4 feet in Group1, and no metatarsal dorsal elevation was occurred in Group 2. There were no significant differences identified among Group1 and Group 2 in terms of VAS and AOFAS scores, and HVA and IMA measurements. However, there is less complication in two-screw fixation for crescentic osteotomy compared to a single screw fixation.
Improvement of Hyperlipidemia by Aerobic Exercise in Mice through a Regulatory Effect of miR-21a-5p on its Target Genes
Authors: Zhao Jinfeng , Wang Yaxin , Chen Anping , Zeng Yu , Yan Feng , Chen Longchang , Wu Baoai
Published: January 2021

Background and aims Hyperlipidemia is a risk factor for cardiovascular disease, and miR-21a-5p plays an important role in the occurrence and progression of hyperlipidemia, this study aimed to investigate the mechanism of aerobic exercise improved hyperlipidemia through enhancement miR-21a-5p expression.Method Spectrophotometer detected blood lipid level; HE stained liver tissue to check the grade of liver steatosis; QPCR and Western blot detected mRNA expression and protein levels. Results There had a notable improvement in the weight gain, blood lipid level and liver steatosis in hyperlipidemia mice after 8 weeks aerobic exercise intervention. In addition, aerobic exercise significantly up-regulated the expression of miR-21a-5p, and provoked favorable changes in the expression of target genes. Knockdown of miR-21a-5p resulted in dysregulation of lipid metabolism and increased expression of target genes FABP7, HMGCR, ACAT1 and OLR1. While aerobic exercise could alleviate miR-21a-5p knock-down induced lipid metabolism disorder. Conclusion Aerobic exercise improved hyperlipidemia through miR-21a-5p-induced inhibition of target genes FABP7, HMGCR, ACAT1 and OLR1.
COVID-19 Flattening Curve,"A Recipe for Second Wave of Infections in Kenya''
Authors: Kiarie Joyce , Mwalili Samuel , Mbogo Rachel
Published: January 2021

Background COVID-19 disease has persisted since it was declared a global pandemic by World health organization (WHO) in February 2020. Kenya had notified a total of 34,057 cases, reported 574 deaths by end of August 2020. The Country's positivity rate had also come down from 13 to 4 percent between June and August 2020. Despite the gains in controlling the first COVID-19 wave from the non-pharmaceutical interventions, most countries would not sustain the economy with prolonged lockdown and restriction of movements. In Kenya, for instance, it resulted in easing some measures on 27th September 2020 in an attempt to reverse the economic strain. By end of October, the effects of these measures were already reversing with a positivity rate of 14 and bed occupancy of 140 percent. The goal of this study was to model the progression of COVID-19 cases in Kenya post reversed curve of the first wave of infections. Results An SEIR compartmental model was developed to predict the daily cases of COVID-19 post the reversed curve. The model had 8 compartments containing sub-populatoions of: Susceptible, Exposed, Symptomatic Infectious, Asymptomatic Infectious,Hospitalized,Intesive Care Unit, Deaths and Recovered. The model equations were then solved to obtain the number of cases that would be infected on a daily basis beginning March 14th to January 2021. The model results demonstrated that with the abscence of herd immunity in the general human population, relaxation of the mitigation measures will eventually result to resurgence of COVID-19 cases. The wave of infections length of stay will be 4 months upto January 2021 and will be on the rise to the peak for an estimated 45 days. The cumulative number of cases trend depicts the same pattern as that of the daily cases. It is predicted that the trend will be on the rise till January 2021. Conclusion Increased vigilance on post reversed COVID-19 curve is indispensable. Continued interventions such as mass and targetted testing, contact tracing and social distancing measures are imperative to ensure that new infections are isolated real time. This will inform new and appropriate interventions amidst the ongoing pandemic