bluuebunny/crossref_metadata_2025 huggingface dataset:
Utilização de copos plásticos descartáveis na composição do traço para a produção de tijolo ecológico
Authors: Silva Paulysendra Felipe , Sousa Rebeka Manuela Lobo , Oliveira Francisca das Chagas , Sousa Heitor Fernandes , Lopes Phillype Dowglas , Chaves Francisco Arlon de Oliveira , Sousa Linardy de Moura , Paz Gilvan Moreira da , Soares Roberto Arruda Lima
Published: November 2021

Diante do crescimento dos impactos ambientais no mundo, estamos buscando e aprimorando materiais sustentáveis para uso na construção civil. Dentre os materiais temos o tijolo ecológico, que reduz a poluição desde o processo de fabricação, pois não precisa ser queimado, não é necessário alimentar os fornos evitando o desmatamento. É composto por areia, cimento e água. A construção feita com este tijolo apresenta temperaturas no interior agradáveis, suportando muito bem as altas temperaturas. O presente trabalho visa adicionar copos descartáveis triturados visando melhorar as características e propriedades do tijolo ecológico, onde serão moldados corpos de prova para obtenção dos resultados.Os tijolos ecológicos com porcentagens de 0%, 40% e 60% de copos descartáveis triturados foram submetidos aos testes de resistência à compressão e absorção de água. Após a realização dos ensaios mecânicos e caracterização do material nos laboratórios da UNIFSA e PPGEM, observou-se que é possível utilizar copos descartáveis triturados como componente do tijolo ecológico ainda de acordo com os resultados obtidos, apenas a formulação com 40% de adição de copos atende aos requisitos das normas NBR8491 / 12 e NBR8492 / 12.
Ajuste de modelos não lineares às notificações de Covid-19 no município de Palmas - Tocantins
Authors: Nesello Alane Lorena Medeiros , Moraes Gabriella Nunes de , Alves Maryana Teixeira , Araújo Ronyere Olegário de
Published: November 2021

Compreender como a transmissibilidade de uma doença ocorre é importante para estabelecer medidas necessárias para combatê-la. Desta forma, o objetivo é identificar qual modelo não linear, entre os modelos de Gompertz, Von Bertallanfy e Logístico, se ajustaria melhor a curva de prevalência de casos de Covid-19 da cidade de Palmas-TO. Bem como analisar dados de notificações de casos e óbitos, em variáveis como gênero e faixa etária. Serão utilizados dados até setembro de 2021, encontrados no site da SESAU-TO, as notificações são confirmadas através do teste RT-PCR. As fórmulas dos modelos serão compiladas e representadas em gráficos. Para definir o melhor modelo será desenvolvido um IA, cujo menor valor indica o melhor ajuste. Podemos observar que apesar da maior taxa de acometimento ser em adultos, a maior letalidade foi em idosos. Em relação a variável gênero, a maior taxa de acometimentos foi no sexo feminino e de letalidade no sexo masculino. Podemos concluir que o modelo que apresentou melhor ajuste às notificações foi o de Gompertz, apresentando um menor valor de IA. Ademais, o valor estimado encontrado ao final do período observado no modelo Gompertz foi o mais semelhante ao número de notificações em Palmas dentre os modelos analisados. Foi também observado que o modelo de Von Bertalanffy apresentou um IA baixo, sendo também uma curva adequada para Palmas. Contudo, quanto a curva do método Logístico, foi o mais ajustado no início do período, porém com o avançar das mutações, acabou não se tornando efetiva para o município.
Atividade microbiana no solo em sistema de produção consorciado
Authors: Silva Hiago Souza , Chaves Josimar da Silva , Nascimento João Pedro Santos do , Matos Sandoval Menezes de , Brito Neto Alfredo Fernandes de , Leite Jadinéa Leandro , Pereira Hipólito Ribas , Brito Welligton Alvarenga de
Published: November 2021

As atividades microbianas no solo são importantes indicadores de alterações causadas por práticas agrícolas, sendo responsáveis por transformações físicas, químicas e biológicas nos resíduos orgânicos, que emplicam na fertilidade do solo. Objetivou-se avaliar a atividade microbiana presente no solo em sistema de manejo consorciado com leguminosa, fruteíras e essencia florestal em comparação a uma área de mata nativa. O trabalho foi desenvolvido no Instituto Federal de Ciência e Tecnologia de Roraima - Campus Novo Paraíso, em três áreas, sistema de cultivo consorciado gliricídia + frutíferas (laranja e banana), sem gliricídia (laranja e essenciais florestais) e mata nativa. As amostras de solo foi coletado com profundidade de 0 cm - 10 cm e 10 cm-20 cm, colocadas em caixa térmica e mantidas a 4 ºC. Foi realizado análises do Carbono da Biomassa Microbiana do solo (BMS- C), Nitrogênio da biomassa Microbiana do solo (N-mic)  e da população de microrganismos (total, celulíticos, amonificadores e actinobactérias). A área do consórcio de gliricídia + fruteiras (laranja e banana) apresentou maior população de microrganismos e um incremento de 356% no carbono da biomassa microbiana, mostrando ser um sistema alternativo para o consorcio de espécies vegetais, favorecendo o fornecimento de nutrientes para as plantas.
Impacto da ultrassonografia doppler no exame clínico andrológico de reprodutores equinos
Authors: Santos Allan Gledson Ferreira dos , Braz Hugo Albino , Silva Robespierre Augusto Joaquim Araújo , Guerra Maria Madalena Pessoa , Azevedo Marlon de Vasconcelos , Silva Sildivane Valcácia
Published: November 2021

Objetivou-se avaliar a associação da ultrassonografia Doppler com o exame clínico andrológico para identificação da qualidade reprodutiva de equinos no Brejo paraibano. Foram utilizados 11 equinos da raça Quarto de milha, com idade entre três a 27 anos. Os ejaculados foram colhidos pelo método de vagina artificial e as amostras seminais submetidas à avaliação a campo (motilidade subjetiva, integridade celular) e em laboratório (motilidade objetiva, integridade celular). Após colheita seminal, os animais foram submetidos à avaliação do fluxo sanguíneo testicular por ultrassonografia doppler. Diferenças (p<0,05) foram observadas entre os parâmetros de motilidade subjetiva, avaliada a campo, e motilidade objetiva, no laboratório. A integridade da membrana plasmática espermática foi semelhante nos testes a campo e em laboratório. Nos parâmetros ultrassonográficos, observou-se que o Índice de Pulsatilidade tem correlação positiva com amplitude de deslocamento lateral de cabeça (ALH) do espermatozoide. Por fim, com o aumento da idade dos reprodutores, observou-se redução da motilidade e menor aporte sanguíneo na região testicular, resultando em menor potencial de fertilidade. Conclui-se que o exame clínico andrológico, quando isolado, não determina a capacidade fértil de garanhões; a ultrassonografia associada ao método doppler identifica animais subférteis e pode ser uma ferramenta auxiliar na seleção de reprodutores equinos.
Temperatura e umidade do solo no consórcio de milho com Crotalaria spectabilis e Cajanus cajan em sistema orgânico
Authors: Trevisan Murilo , Silva Laura Fernanda Simões da , Fontanetti Anastacia , Gallo Anderson de Souza , Guimarães Nathalia de França
Published: November 2021

A espécie e densidade de adubos verdes no consórcio com o milho modificam os padrões de competição interespecífica podendo alterar as respostas de temperatura e umidade do solo. Objetivou-se, neste estudo, analisar os efeitos da Crotalaria spectabilis e do Cajanus cajan na temperatura e umidade do solo, ao longo dos estádios de desenvolvimento do milho cultivado em consórcio, em sistema orgânico. O delineamento experimental foi blocos casualizados, com quatro repetições. Os tratamentos consistiram em três consórcios de milho: MC - Crotalaria spectabilis (5 plantas m -1); MG - Cajanus cajan (5 plantas m -1); MCG - Crotalaria spectabilis e Cajanus cajan (10 plantas m -1, cinco plantas de cada adubo verde), semeados na linha do milho e três tratamentos controles: M - milho; C - Crotalaria spectabilis e G - Cajanus cajan, solteiros. As leituras das temperaturas do solo foram realizadas na linha e entrelinha de semeadura, e, da umidade do solo, na linha de semeadura do milho, nos horários de 8, 12 e 17 horas, nos estádios fenológicos V5, V8, VT, R2, R4 e R6 do milho. As profundidades de avaliação foram 0-0,10, 0,10-0,20 e 0,20-0,40 m. Os horários, as profundidades e as posições linha-entrelinha influenciaram a temperatura do solo, enquanto as profundidades e os estádios fenológicos influenciaram a capacidade de retenção de umidade no solo. Os consórcios reduziram a temperatura do solo, principalmente o MG, que também reduziu a umidade do solo entre os estádios V8 e R2 do milho.
Assistência de enfermagem primária a mulheres vítimas de violência perpetrada por parceiro íntimo
Authors: Corrêa Hêmyle Thaynara Bezerra , Leal Gislena Martins , Oliveira Ana Livia Castelo Branco de
Published: November 2021

Introdução: A violência contra a mulher se caracteriza como um problema de saúde pública e de violação dos direitos humanos das mulheres podendo afetar negativamente a saúde física, mental, sexual e reprodutiva das mulheres e sendo praticada especialmente pelo parceiro íntimo. A assistência de enfermagem norteia o cuidar, facilitando o processo de atendimento mediado por intervenções direcionadas a saúde global da paciente. Objetivo: Identificar na literatura científica nacional e internacional evidencias sobre a assistência de enfermagem primária a mulheres vítimas de violência perpetrada por parceiro íntimo. Método: Revisão integrativa realizada nas bases de dados Latin American and Caribbean Health Science Literature via Biblioteca Virtual de Saúde e Web of Science, via Portal de Periódicos CAPES. Foram selecionados estudos originais, sem delimitações de linguagem ou temporalidade, que atendessem à questão de pesquisa. Os estudos foram submetidos à leitura de dois revisores independentes e após extração de dados, organizados em tabela sinóptica.  Resultados: A maioria dos artigos foi buscado na base de dados Biblioteca virtual de saúde, a amostra de 13 artigos selecionados levantou questionamentos sobre a enfermagem aplicada a estratégias alternativas que contemplassem a saúde psíquica de mulheres que sofreram violência. Assim foram desenvolvidas intervenções de enfermagem que buscassem a identificação desse fenômeno e o correto manejo com fins de minimizar impactos físicos e psíquicos para as mulheres acometidas. Conclusão: Os estudos revelaram estratégias de intervenções de enfermagem às mulheres vítimas de violência especialmente física e psíquica e apontaram para a necessidade da capacitação das equipes de estratégia de saúde da família, enfatizando o cuidado integral e humanizado entre essas vítimas.
A importância da banana pacovã verde como alimento funcional para a saúde humana
Authors: Lima Daysiane Mota , Barbosa Héliton Henrique Lima , Dantas Thalia dos Santos , Ferreira José Carlos de Sales , Lobo Rosimar Honorato
Published: November 2021

Introdução: A banana é originária do extremo oriente e devido a exigência do calor para que seu desenvolvimento seja feito adequadamente, é uma planta típica de lugares com climas tropicais. Por conta do alto nível de carboidratos presentes em sua composição, ela é considerada um excelente alimento de fonte energética, além disso, quando ainda verde, seus níveis de minerais, tais como: potássio, manganês, iodo e zinco são maiores que em seu estado amadurecido. Devido a presença de um amido chamando, “amido resistente”, a banana verde apresenta propriedades funcionais semelhantes as fibras alimentares, dessa forma, ajudando na prevenção de doenças degenerativas associadas ao metabolismo intestinal. Objetivo Geral: Afim de descrever os benefícios da utilização banana pacovã verde como um ótimo alimento funcional para o organismo humano. Metodologia: Foi realizado uma pesquisa bibliográfica, com objetivos de identificar a composição nutricional e caracterizar os efeitos do amido resistente, Resultado e Discussão: Descrever os efeitos da utilização da banana verde como alimento funcional, destacar a importância da utilização da banana verde na prevenção e tratamento de doenças crônicas e elucidar a importância da educação nutricional quanto ao conhecimento sobre novas alternativas alimentares. Conclusão: Constatou-se que a banana verde contém vários benefícios, sendo um alimento funcional de baixo custo para população. Dentre as maneiras de utilizá-las, pode-se transformá-la em biomassa.
Sorption of oils by a commercial non-woven polypropylene sorbent
Authors: Zaro Marcelo , Silvestre Wendel Paulo , Fedrigo Jéssica Grapilha , Zeni Mara , Baldasso Camila
Published: November 2021

Non-woven polypropylene (PP) sorbents are materials that can be used in oil recovery following spills, which are interesting alternatives to remediate contaminated areas. This work aimed to characterize a non-woven sorbent made of PP. The physicochemical characteristics of the material, sorption capacity, kinetics, and adsorption isotherms were evaluated. The physicochemical study included the determination of thickness, density, thermal and chemical properties of the sorbent, and fiber morphology. Sorption tests were performed according to the standard method ASTM 726-12. The kinetic models of pseudo-first and pseudo-second order were tested. The fit of the experimental data to the adsorption isotherms of Langmuir, Freundlich, and Temkin was also carried out. The sorbates used in the tests were diesel, petroleum, and lubricant oil. The sorption capacity of the PP nonwoven blanket relative to diesel, petroleum, and lubricant oil in long-term tests was 5.3, 12.3, and 18.7 g∙g-¹, with increasing values when sorbates were more viscous. The results of the short and long-term tests did not show a statistical difference in the sorption capacity of the blanket. The kinetic study showed that the sorption of the three sorbates followed pseudo-second-order kinetics. The diesel oil presented a better fit to the Langmuir isotherm (R² = 0.998), whereas the petroleum presented an excellent fit to all three isotherms (R² = 0.996-0.999). Regarding sorbent reusability, the sorption capacity stabilized after the second cycle, and the samples whose sorbate removal was carried out by centrifugation have presented and maintained the highest sorption capacities.
Transtorno de estresse pós traumático sofridos por crianças abusadas sexualmente
Authors: Araújo Grasiele dos Santos Negreiros de , Martins Polliana Gato
Published: November 2021

Os transtornos psicológicos sofridos por crianças abusadas sexualmente, mas especificamente o Transtorno de Estresse Pós Traumático-TEPT. A pesquisa tem como objetivo analisar O Transtorno de Estresse Pós Traumático sofridos Por Crianças Abusadas Sexualmente.  Esta pesquisa terá uma abordagem qualitativa de caráter bibliográfico, tendo como instrumento de pesquisa livros didáticos a respeito do tema, portais eletrônicos de periódicos científicos entre 2008 a 2021. Nesta etapa, foram utilizados 6 artigos, 15 trabalhos publicados em revistas e 3 livros. O atendimento psicológico oferece recursos para a compreensão no processo de adoecimento e estratégias de enfrentamento, neste caso é de suma importância o atendimento psicológico após sofrer abusos sexuais, para que o sujeito possa expor o que está sentindo e o profissional consiga buscar técnicas para recuperar o que foi lhe tirado. Sobre os métodos terapêuticos é pouco encontrado, bem como a ausência de instrumentos psicológicos validados e eficazes para avaliação clínica das crianças e dos adolescentes. Observou-se que o transtorno de estresse pós-traumático é o mais comum em crianças vítimas de abuso sexual e que a Teoria Cognitivo-comportamental é o modelo a ser desenvolvido e aplicado nas mesmas.
Análise comparativa de lajes de pontes em balanço com base no método de elementos finitos
Authors: Correia Luan Bastos , Mendes Luiz Carlos
Published: November 2021

O processo de construção de pontes rodoviárias de concreto armado exige estudo e análise da ação de cargas permanentes e variáveis, além de outros fatores como as ações dinâmicas oriundas da movimentação e tráfego de veículos sobre o tabuleiro. A propagação do capitalismo, associada ao fenômeno de globalização ocasiono o crescimento exponencial do fluxo de veículos, consequentemente maiores solicitações estruturais, esses fatores apresentam grande relevância no planejamento e desenvolvimento no projeto de construção de superestruturas, pois estão inerentes ao surgimento de momentos transversais despertados na direção longitudinal das lajes de pontes em balanço. A busca pela análise correta e consideração desses aspectos para avaliação estrutural de uma ponte motivou o desenvolvimento desse estudo, para melhor compreensão dos esforços despertados no elemento estrutural, bem como a solução eficiente para o mesmo. A análise da variação de espessuras de lajes de pontes em balanço é um fator preponderante no embasamento dessa pesquisa. O estudo abordou o modelo matemático semi-analítico desenvolvido por Bakht e Jaeger (1985) e comparado com os resultados obtidos por Robalo (2013) por meio do software baseado no método de elementos finitos, foi realizada uma comparação e análise dos momentos fletores despertados na laje em balanço, correlacionando aos fatores relacionados ao surgimento desses esforços. A pesquisa utilizou o programa Microsoft Excel e os resultados obtidos por Robalo (2013) com o software SAP2000. Conclui-se nesse trabalho a proporcionalidade da variação de espessuras de lajes com a intensidade de momentos de picos e o surgimento de fissuras na peça estrutural.
Effect of base media, FSH and anti-Müllerian hormone (AMH) alone or in combination on the growth of pig preantral follicles in vitro
Authors: Rocha Rebeca Magalhães Pedrosa , Rubessa Marcello , Lima Laritza Ferreira de , Silva Ana Flávia Bezerra da , Winters Rebecca , Polkoff Kathryn , Milner Derek , Campello Cláudio Cabral , Figueiredo Jose Ricardo de , Wheeler Matthew
Published: November 2021

To compare the efficiency of North Carolina State University medium 23 (NCSU23) and Alpha Minimum Essential Medium (α-MEM) as a base medium, and to evaluate the effects of Anti-Müllerian Hormone (AMH) alone or in combination with Follicle Stimulating Hormone (FSH) on the in vitro development and steroid production of isolated porcine preantral follicles. Porcine secondary follicles were cultured in NCSU23 or α-MEM media for 4 days. Once α-MEM was determined to be the optimal culture medium, secondary follicles were cultured in α-MEM alone or supplemented with FSH (1.5 ng/mL), AMH (50 ng/mL) or the combination of the two hormones. Follicle development was evaluated by measuring follicular growth, morphology and hormone production. There was no difference between the media NCSU23 and α-MEM in terms of follicle survival and growth (P > 0.05). However, at day 2, the antrum formation rate tended to be (P < 0.074) higher in α-MEM than NCSU23. At day 4 of culture, the estradiol and progesterone secretion were higher in α-MEM than NCSU23 (P < 0.01), while the opposite was observed for testosterone (P < 0.01). The addition of AMH and/or FSH did not affect follicular survival and growth. Nevertheless, the secretion of estradiol and progesterone induced by FSH was reduced with AMH (P < 0.01). α-MEM is a more effective base medium than NCSU23 for the in vitro follicular development of pig preantral follicles and AMH reduces the steroid production induced by FSH.
Entomofauna aérea em Eucalyptus spp. no Sudeste do Pará, Brasil
Authors: Saliba Ivy Laura , Lunz Alexandre Mehl , Batista Telma Fátima Vieira , Dionisio Luiz Fernandes Silva , Machado Helton Bastos , Schwartz Gustavo
Published: November 2021

Plantios florestais homogêneos são comumente atacados por agentes bióticos devido à menor diversidade biológica. Este tipo de plantio, especialmente de eucalipto, se intensificou no sudeste do estado do Pará, Brasil, a partir dos anos 1990. Desta forma, o objetivo deste estudo foi prospectar a diversidade da entomofauna aérea, avaliar suas respostas à sazonalidade e detectar a ocorrência de possíveis insetos praga importantes para monocultivos de Eucalyptus spp. Foram utilizadas armadilhas amarelas adesivas para a amostragem em plantios de E. urophylla e do híbrido E. grandis x E. urophylla. No total, foram realizadas 12 coletas, com 27 armadilhas cada, divididas em estação seca e chuvosa, durante dois anos em três municípios do Sudeste do Pará. Foram calculados os índices de diversidade de Shannon-Wiener e Pielou. As famílias foram classificadas quanto à diversidade faunística, através dos índices de dominância, frequência, abundância e constância. O teste de análise Fatorial 2 x 2 foi realizado para comparar o efeito da sazonalidade entre os eucaliptos. Foram coletados 10.280 indivíduos, distribuídos em oito ordens e 68 famílias. As ordens mais abundantes foram Hemiptera, Coleoptera e Diptera, onde Hemiptera foi a mais abundante na estação seca, e Diptera na estação chuvosa. As famílias Aphalaridae e Thaumastocoridae foram as mais importantes. Também foi registrada a ocorrência das espécies praga Blastopsylla occidentalis, Glycaspis brimblecombei e Thaumastocoris peregrinus.
TEACHERS’ PERCEPTIONS TOWARDS THE PRACTICE OF COMPETENCY BASED ASSESSMENT FOR LEARNING IN OROMIA COLLEGES: IN PARTICULAR TO SHAMBU, NAKAMTE AND D/DOLLO CTE
Authors: Alemayehu Moti , Olana Tamiru , Bekele Ebisa
Published: November 2021

This study investigated teachers’
perceptions towards the practice of competency
based assessment for learning in Shambu,
Nakamte and D/Dollo College of Teachers
Education in Oromia Region to realize their
perceptions. Therefore, descriptive design was
used. A close-ended and open-ended questionnaire
items with five point Likert scale was
administered to thirty two trainers. In addition, to
substantiate the data obtained through
questionnaires, interviews with 4 experienced
instructors were also held. The quantitative data
was analyzed to determine the status of
instructors’ perception towards the practice of
CBAFL. The qualitative data which was collected
using interview was described qualitatively using
narrative analysis. Results of the study revealed
that instructors’ have unfavorable perception
towards the practice of AFL. They perceived that
the practice of CBAFL in the faculty was more of
theoretical and most of them assumed that
students need further practical training to
perform to the standard in the actual job
situations. Regarding the factors that affect the
practice of assessment, almost all the participants
believe the following are main factors: A heavy
influence of the earlier approach to methods of
teaching and assessment (behaviorist) which is
usually practiced by instructors; instructors give
more attention to grading instead of enabling
trainees to be competent through careful
engagement of practical assessment tools; in
addition the participants of the study also enlisted
the following as main factors: trainees are not
responsible for their own learning; they give
priority to passing exams rather than developing
competence; lack of clarity on competence-based
assessment among trainee and instructors. Large
numbers of respondents held the view that the
practice of CBAFL was not in line with future job
requirements of the graduates.
SYNTHESIS OF CERIUM YTTRIUM COSTABILIZED ZIRCONIUM DI-OXIDE BY SOLGEL PROCESS
Authors: Rani N Kavitha , Jagath Dr. M C , Anuradha Dr. K. N. , P Dr. Rajeshwari , Emmi Dr Mahesh G.
Published: November 2021

The Sol–gel route was used to synthesize Ceria–
Yttria co-stabilized Zirconia (CYSZ) nanoparticles. The
addition of stabilizing oxides to pure Zirconia, such as
CaO, MgO, CeO2, and Y2O3, allows for the formation of
multiphase materials, which are referred to as CoStabilized Zirconia. Cerium Oxide CeO2 and Yttrium
Oxide Y2O3 are co-stabilized with Zirconium Oxide in this
study. The creation of nanostructured coatings has been
shown to boost the efficiency of TBCs by lowering thermal
conductivity, increasing bonding power, and increasing
thermal cycling lifetime, according to researchers. The
crystallinity and stabilization of cubic crystalline phases
were studied by energy dispersive X-ray spectroscopy
(EDAX) at different calcination temperatures in the range
of 500°C to 1200°C, and surface morphology and
compositional analysis were studied by scanning electron
microscopy using the sol-gel process (SEM). The research
yielded interesting results, but it was discovered that when
Zirconium Dioxide was synthesized using the sol-gel
process, the tetragonal phase was not present; thus, other
methods to obtain the tetragonal phase would be needed in
the future for the application of Thermal Barrier Coating.
AQUIFER MAPPING USING AEM SKYTEM
Authors: Shaji Balendhu
Published: November 2021

The new tool is called SkyTEM. It’s an aerial
geophysical survey system towed by helicopter that
measures aquifers electronically. SkyTEM uses
electromagnetics, a global positioning system, lasers,
loggers, and a computer strapped to a giant hexagonshaped frame. Constructed from nonconductive fiberglass
and wood, the frame will not interfere with SkyTEM’s
electronics as they probe the ground for electrically
conductive layers. Ringing the bottom of the frame is a
cable of wound copper wires that acts as a transmitter.
A REVIEW OF LOW VOLTAGE AND LOW POWER CMOS ADDERS USING VLSI DESIGN IN VERILOG/VHDL
Authors: S Lokesh
Published: November 2021

The dominant portion of power dissipation in
CMOS adder circuits, due to logic transitions, varies as the
square of the supply, significant savings in power
dissipation may be exacted by operating with reduced
supply voltage. If the supply voltage is reduced while
threshold voltage stays same, the noise margins will
reduce. Addition is a crucial process because it usually
involve carry ripple steps which must propagate a carry
signal from each bit to it’s higher bit position. This results
in a substantial circuit delay. The adder which lies in the
crucial delay path will effectively determine the system
overall speed. To improve noise margins, the threshold
voltages must also be made smaller. However subthreshold leakage current increases exponentially when
threshold voltage is reduced. The higher static dissipation
may then offset the reduction in transitions portion of the
dissipation. Hence the devices needed to have threshold
voltages that maximizes the net reduction in the
dissipation. Addition is an obligatory operation that is
crucial to processing the fundamental arithmetic
operations. Due to the potential versatility of adders in this
contemporary research field, the existing adders and
adder designs currently intended for future low voltage
and low power environments. This can be achieved by the
CMOS adders namely Parallel Adder, Ripple Carry
Adder(RCA), Carry Look Ahead Adder(CLA), Carry
Select Adder(CSL), Carry Save Adder(CSA), Carry Skip
Adder(CSK), Conditional Sum Adder(COS).
DUTIES OF PARTIES TOWARDS EFFECTIVE HEALTH AND SAFETY MANAGEMENT DURING DESIGN AND CONSTRUCTION
Authors: Stephen Olasunkanmi, Abatan , Oluyemi E Oke , Omolara R Bankole , A BabarindeRacheal
Published: November 2021

Building and construction industry in Nigeria
has tremendously grown in the recent past owing to its
contributions to national economy. Healthy and safety is
an important aspect of the industry, yet, it remains
unsatisfactory in terms of frequent occurrence of accidents
and ill health on construction sites. Moreover, the
occurrence of accidents on construction sites usually leads
to site closure for investigation, loss of man/machine hours,
loss of output, loss of corporate reputation, payment of
burial expenses/compensation/insurance claims for the
dead. These ugly incidents have necessitated the need for
an effective health and safety management in the industry.
This paper therefore analyzes the global situations of
health and safety in the industry, examines the sources of
accidents and ill health during construction and also
investigates the health and safety management system and
its challenges. The paper further analyzes the duties of
parties involved in management of health and safety,
communication of health and safety among the parties and
assesses the strategies used in communication during
design and construction stages.
DETECTION OF OSTEOPOROSIS IN DEFECTED BONES USING RADTORCH AND DEEP LEARNING TECHNIQUES
Authors: Shahzad Mohsin , Farooq Khan Talha , Bashir Mohsin , Ayub Muhammad , Ashraf Fatima , Hashmi Shoaib , Zahoor Fareeha , Hassan Jaskani Fawwad
Published: November 2021

Osteoporosis is a bone issue which happens in
light of low bone mass, debasement of bone smaller scale
design and high powerlessness to break. It is a critical
prosperity stress over the world, especially in more
established people. In this paper a significant learning
model reliant on a ResNet50 and XGBoost Classifier has
been used for predicting gouts or osteoporosis in MURA
V2 dataset by using RADTorch library in order to preprocess image of X-rays to identify the defects easily. The
randomly provided images were of osteoporosis and the
model predicted it correctly with a 99.9% confidence level.
There are also some images that the model was not able to
predict it with full confidence. Results shows that, the
model predicted the Bones correctly and confidence level
was impressive. These images show the model predictably
the Bones correctly with the confidence level 98% and
91% respectively with ResNet50 and with Hybrid model of
ResNet50 and XGBoost Classifiers. Similarly, our model
does not only detect Bones, but it can also detect other
osteoporosis with an impressive confidence level
FACTORS AFFECTING INSTRUCTIONAL LEADERSHIP PRACTICES OF SCHOOL PRINCIPALS: A CASE STUDY IN WANGDUEPHODRANG DISTRICT, BHUTAN
Authors: . Norbu , . Norbu
Published: November 2021

Principal Leadership is a globally discussed
concept in the education sector and by the governments.
Apparently, instructional leadership has gained popularity
worldwide among many other leadership styles. It plays an
important role in quality education and school effectiveness.
Hence, the study has been undertaken to understand the
prevailing leadership practices, and determine common
instructional leadership practices with an additional focus
on the factors or challenges of instructional leadership
practices of the principals.
The study has been carried out in Wangduephodrang
District with a total respondents principals and teachers of
76. The data was collected through a mixed method, using
the purposive sampling method. Semi-structured
questionnaires and one to one interviews were used in the
study. The data was analysed using Statistical Package for
Social Sciences (SPSS) version 22 and used to draw
descriptive statistics and inferential reports. Further the
data were also analysed using the Pearson correlation test.
The quantitative data were interpreted through narration
to support the quantitative results.
Some of the key findings were, instructional leadership
practices of the principals were found to be inadequate,
principals concentrating on managerial roles and
delegating supervisory responsibilities to staff. Some major
issues faced were numerous roles and responsibilities given
to principals, shortage of teachers, inadequate instructional
responsibilities, and lack of time and leadership training.
Accordingly, the authors share a few recommendations to
the relevant stakeholders and agencies for learning and
development purposes.
LOW-COST DOMESTIC WASTE WATER TREATMENT AND ANALYSIS
Authors: G. Pande Rasika , R. Pardeshi Sayali , P.D. Alte , Choudhari Mayur R , V. Bawaskar Shweta , P. Mhaske Rutuja
Published: November 2021

The motive of this paper to prepare some
systematic low-priced and sustainable domestic waste
water treatment system for household. To acquire this
objective we collected samples from the household kitchen
sink, basin, laundry etc. From the conclusion we learned
that the tested parameters like BOD, COD, TDS, etc.
displayed high removal of physical and chemical
impurities. The treated water can be used for purposes
such as irrigation, car washing, Flushing, etc.
The specifics of fiscal policy under the conditions of pandemic shock
Authors:   SESE “The Academy of Financial Management”, UKHNAL Nataliia
Published: November 2021

The development the conceptual principles of fiscal policy is impossible without understanding the consequences of the global epidemiological crisis and assessing the actions of governments aimed at minimizing existing problems and preventing a potential negative impact on the national economy. The article evaluates the peculiarities of the formation of anti-crisis fiscal and monetary measures, to which more than 10% of world GDP is directed , in the context of global pandemic recession and challenges caused by the lack of preparedness in healthcare facilities and systems. The peculiarity is revealed that in the developed countries there is a wide fiscal space in comparison with the developing countries. The purpose of the article is to show the features of socio-economic processes and main measures of financial policy aimed at minimizing the negative consequences of the pandemic shocks. The scientific novelty is to identify ways to strengthen the resilience of the financial system and government support for entrepreneurship in Eastern Europe and the Caucasus in the context of necessary measures and restrictions related with the COVID-19 pandemic. The tools of budget, tax and social support, creation of stabilization packages, liquidity programs for commercial banks, mobilization of financial resources through the creation of funds, in particular through international cooperation, are considered on the example of the Eastern Partnership countries. It is substantiated the necessity of using by the national governments of anti-crisis measures of fiscal policy and the creation of mechanisms for emergency mobilization of financial resources and material resources to increase competitiveness and long-term demand, providing compliance with the priorities of environmental safety and objectives of social justice. Given climate change and environmental degradation, further search is needed to increase the resilience of the economy and society to future shocks.
Listening practice for learners of English: towards an intelligent tutoring system
Authors: Caines Andrew , Waters Joseph , Xu Sherry , Elliott Mark , Lee Hye-won , Moore Russell , Bozic Mirjana , Buttery Paula
Published: November 2021

We develop a web-application for practice of listening skills by learners of English, which allows users to listen to pre-recorded sound-files and respond to multiple-choice questions. They receive feedback as to the accuracy of their responses, and they are navigated through the set of items in one of two ways according to the group they are randomly assigned to. Members of a control group are guided from one item to the next depending on success or failure with each new item, and the difficulty ratings of the remaining items. For the experiment group, item selection is made in an adaptive fashion: selecting items through automatic predictions based on individual performance and observations of other students’ interactions with the platform, as well as known item attributes obtained through tagging. Based on the cognitive literature, we also provide listeners with the option of controlling the speed of presentation of the listening items.
Individual citizens' resilience to disasters caused by floods: a case study of Belgrade
Authors: Cvetkovic Vladimir M. , Boškovic Nemanja , Öcal Adem
Published: November 2021

Due to the increasing frequency and variety of disasters caused by floods and their effect on people, environment, material, and cultural goods, there is an unavoidable need to improve the security of citizens through innovative solutions to improve Serbian citizens' resilience to such disasters. The subject of the research is a comprehensive examination of the levels and factors that affect the level of individual resilience of the citizens of the city of Belgrade to the consequences of disasters caused by floods. By applying the quantitative research tradition, citizens' attitudes about their level of resilience and the level of resilience of society were examined. The survey was conducted using a questionnaire that was requested and collected online among 377 respondents during May 2020. The research results show that there are relationships between the diversity of characteristics, experiences, and levels of education with the level of individual resilience of citizens to flood disasters. The implications of the research related to the creation of preconditions for the design and implementation of various programs, strategies, and campaigns that will improve the situation in the aforementioned area.
Is There a Correlation Between Benign Paroxysmal Positional Vertigo and Indirect Sinus Lifting?
Authors: ATALI Onur , DERGİN Gühan , SARI Murat
Published: November 2021

Objective: The aim of this study is to inform surgeons regarding benign paroxysmal positional vertigo (BPPV) after indirect sinus liftingprocedures and to assess its relationship with age, gender, residual alveolar bone height (RAB), and cortical thickness of the sinus floor.Methods: This study included 138 patients presenting for evaluation and management of BPPV after indirect sinus lifting. Patients withRAB lengths of 5–8 mm had been taken for indirect sinus lifting. Preoperative RAB length and cortical thickness of the sinus floor had beendetermined by cone beam computed tomography (CBCT) in each patient. The patients diagnosed with BPPV were promptly treated by anotolaryngologist. Data were assessed by descriptive statistical methods (mean ± standard deviation). Results were evaluated at the p<0.05significance level, in 95% confidence interval (95% CI).Results: Totally 4 out of 138 of the patients showed BPPV. There was no statistically significant difference between the mean ages and genderratio between the patients with BPPV [BPPV(+)] and without BPPV [BPPV(-)] groups. It was found that BPPV is 2.48 times more prevalent inpatients with RAB criterion values <5.9 mm than in patients with criterion values >5.9 mm. BPPV is 4.54 times more prevalent in patients witha criterion cortical thickness value >0.8 mm than in patients with a criterion value <0.8 mm.Conclusion: Based on the results of this study, patients with cortical thickness values >0.8 mm should be informed before undergoing surgery,and patients exhibiting postoperative symptoms associated with vertigo should be treated promptly.
Patients With Chronic Low Back Pain Have an Individual Movement Signature: A Comparison of Angular Amplitude, Angular Velocity and Muscle Activity Across Multiple Functional Tasks
Authors: Christe Guillaume , Aussems Camille , Jolles Brigitte M. , Favre Julien
Published: November 2021

Despite a large body of evidence demonstrating spinal movement alterations in individuals with chronic low back pain (CLBP), there is still a lack of understanding of the role of spinal movement behavior on LBP symptoms development or recovery. One reason for this may be that spinal movement has been studied during various functional tasks without knowing if the tasks are interchangeable, limiting data consolidation steps. The first objective of this cross-sectional study was to analyze the influence of the functional tasks on the information carried by spinal movement measures. To this end, we first analyzed the relationships in spinal movement between various functional tasks in patients with CLBP using Pearson correlations. Second, we compared the performance of spinal movement measures to differentiate patients with CLBP from asymptomatic controls among tasks. The second objective of the study was to develop task-independent measures of spinal movement and determine the construct validity of the approach. Five functional tasks primarily involving sagittal-plane movement were recorded for 52 patients with CLBP and 20 asymptomatic controls. Twelve measures were used to describe the sagittal-plane angular amplitude and velocity at the lower and upper lumbar spine as well as the activity of the erector spinae. Correlations between tasks were statistically significant in 91 out of 99 cases (0.31 ≤ r ≤ 0.96, all p < 0.05). The area under the curve (AUC) to differentiate groups did not differ substantially between tasks in most of the comparisons (82% had a difference in AUC of ≤0.1). The task-independent measures of spinal movement demonstrated equivalent or higher performance to differentiate groups than functional tasks alone. In conclusion, these findings support the existence of an individual spinal movement signature in patients with CLBP, and a limited influence of the tasks on the information carried by the movement measures, at least for the twelve common sagittal-plane measures analysed in this study. Therefore, this work brought critical insight for the interpretation of data in literature reporting differing tasks and for the design of future studies. The results also supported the construct validity of task-independent measures of spinal movement and encouraged its consideration in the future.
Effects of P-Coumarate 3-Hydroxylase Downregulation on the Compositional and Structural Characteristics of Lignin and Hemicelluloses in Poplar Wood (Populus alba × Populus glandulosa)
Authors: Peng Xiao-Peng , Bian Jing , Yao Shuang-Quan , Ma Cheng-Ye , Wen Jia-Long
Published: November 2021

Elucidating the chemical and structural characteristics of hemicelluloses and lignin in the p-coumarate 3-hydroxylase (C3H) down-regulated poplar wood will be beneficial to the upstream gene validation and downstream biomass conversion of this kind of transgenic poplar. Herein, the representative hemicelluloses and lignin with unaltered structures were prepared from control (CK) and C3H down-regulated 84K poplars. Modern analytical techniques, such as 13C NMR, 2D-HSQC NMR, and gel chromatography (GPC), were performed to better delineate the structural changes of hemicelluloses and lignin caused by transgenesis. Results showed that both the hemicelluloses (H-CK and H-C3H) extracted from control and C3H down-regulated poplar wood have a chain backbone of (1→4)-β-D-Xylan with 4-O-Me-α-D-GlcpA as side chain, and the branch degree of the H-C3H is higher than that of H-CK. With regarding to the lignin macromolecules, NMR results demonstrated that the syringyl/guaiacyl (S/G) ratio and dominant substructure β-O-4 linkages in C3H down-regulated poplar were lower than those of control poplar wood. By contrast, native lignin from C3H down-regulated poplar wood exhibited higher contents of p-hydroxybenzoate (PB) and p-hydroxyphenyl (H) units. In short, C3H down-regulation resulted in the chemical and structural changes of the hemicelluloses and lignin in these poplar wood. The identified structures will facilitate the downstream utilization and applications of lignocellulosic materials in the biorefinery strategy. Furthermore, this study could provide some illuminating results for genetic breeding on the improvement of wood properties and efficient utilization of poplar wood.
Sustained AMPK Activation and Proline Metabolism Play Critical Roles in the Survival of Matrix-Deprived Transformed Cells
Authors: Saha Manipa , Deshpande Neha , Dubey Abhinav , Pal Debnath , Atreya Hanudatta S. , Rangarajan Annapoorni
Published: November 2021

Attachment to the matrix is critical for the survival of adherent cells, whereas detachment triggers death by apoptosis. Therefore, solid tumors must acquire the ability to survive the stress of matrix-detachment to transit through circulation and seed metastases. Although a central role for energy metabolism in cancer progression is well established, what distinguishes its role in the cellular state of the matrix-deprived form compared to the matrix-attached form is not fully understood yet. Using an in vitro transformation model dependent on simian virus 40 (SV40) small t (ST) antigen for cellular survival and proliferation in matrix-deprived conditions, we demonstrate that 5′-adenosine monophosphate-activated protein kinase (AMPK) activity is elevated and sustained under matrix-deprived conditions in ST-expressing fibroblasts. Additionally, these cells display elevated energy (ATP) levels under matrix-deprived conditions in contrast to cells lacking ST expression. The elevated ATP levels are coupled to increased levels of proline in ST-expressing cells, as revealed by metabolomics studies. The AMPK-dependent upregulation of proline oxidase, an enzyme of proline degradation, is a key link for elevated ATP levels. This functional link is further established by proline supplementation concomitant with AMPK activation in matrix-deprived cells lacking ST antigen, yielding ATP and enhancing survival. Thus, our data establishes a key role for AMPK-dependent regulation of proline metabolism in mediating energy homeostasis and promoting survival of matrix-deprived cells. These findings identify key markers that distinguish the metabolic states of matrix-detached and matrix-attached transformed cells and have implications in developing novel therapeutic strategies for specifically targeting matrix-detached metastasizing cancer cells.
Li-Rich Antiperovskite/Nitrile Butadiene Rubber Composite Electrolyte for Sheet-Type Solid-State Lithium Metal Battery
Authors: Bian Juncao , Yuan Huimin , Li Muqing , Ling Sifan , Deng Bei , Luo Wen , Chen Xuedan , Yin Lihong , Li Shuai , Kong Long , Zhao Ruo , Lin Haibin , Xia Wei , Zhao Yusheng , Lu Zhouguang
Published: November 2021

Lithium-rich antiperovskites (LiRAPs) hold great promise to be the choice of solid-state electrolytes (SSEs) owing to their high ionic conductivity, low activation energy, and low cost. However, processing sheet-type solid-state Li metal batteries (SSLiB) with LiRAPs remains challenging due to the lack of robust techniques for battery processing. Herein, we propose a scalable slurry-based procedure to prepare a flexible composite electrolyte (CPE), in which LiRAP (e.g., Li2OHCl0.5Br0.5, LOCB) and nitrile butadiene rubber (NBR) serve as an active filler and as a polymer scaffold, respectively. The low-polar solvent helps to stabilize the LiRAP phase during slurry processing. It is found that the addition of LOCB into the NBR polymer enhances the Li ion conductivity for 2.3 times at 60°C and reduces the activation energy (max. 0.07 eV). The as-prepared LOCB/NBR CPE film exhibits an improved critical current of 0.4 mA cm−2 and can stably cycle for over 1000 h at 0.04 mA cm−2 under 60°C. In the SSLiB with the sheet-type configuration of LiFePO4(LFP)||LOCB/NBR CPE||Li, LFP exhibits a capacity of 137 mAh/g under 60 at 0.1°C. This work delivers an effective strategy for fabrication of LiRAP-based CPE film, advancing the LiRAP-family SSEs toward practical applications.