bluuebunny/crossref_metadata_2025 huggingface dataset:
Authors: Zapata Laura , Pineda José Luis
Published: July 2020

La gestión de conocimiento es un proceso determinante para sostener una ventaja competitiva sostenible en empresas que compiten en entornos dinámicos. Estas empresas no solamente

tienen recursos tecnológicos relevantes, sino que deben mostrar flexibilidad y capacidad administrativa para coordinar efectivamente sus competencias internas. Los procesos de generación y

transferencia del conocimiento son analizados en esta investigación por medio de un estudio de casos de cuatro pequeñas empresas del sector de las tecnologías de la información en Barcelona. Como resultado del estudio, se ha diseñado un modelo conceptual en el cual la generación de conocimiento es posible a través de la adquisición de conocimiento externo y de la creación interna de conocimiento. Este último proceso es facilitado por la motivación personal y por la oportunidad de aprender de los miembros de la organización. La transferencia del conocimiento se lleva a cabo a través de la utilización de mecanismos formales e informales de comunicación. Aun cuando los mecanismos formales como los documentos y el Intranet proveen de un fuerte apoyo a este proceso, los empleados prefieren transferir su conocimiento de una forma personal, cara a cara.
Authors: Parisi F. Antonino , Rebolledo Julio , Cornejo S. Edinson
Published: July 2020

La metodología de lógica borrosa, está basada en la idea de que las variables deben ser manejadas no como un número sino más bien por las características que ellas presentan. Se utilizó una serie histórica de cotizaciones diarias del Índice de Precios Selectivo de Acciones del mercado bursátil chileno, correspondiente al período comprendido entre el 14 de julio de 1997 y el 7 de enero de 2005. Se construyó un modelo de lógica y otro de lógica difusa, para efectos de proyectar el signo de las variaciones de los índices bursátiles ya señalados. Los modelos de lógica y de lógica borrosa registraron una capacidad predictiva estadísticamente significativa. Además, ambos modelos lograron un retorno extranormal significativo y positivo al ser utilizados en una estrategia de trading, aun después de considerar los costos de transacción.
Authors: González A. Marcelo
Published: July 2020

Este estudio analiza la posibilidad de obtener beneficios económicos (ajustados por riesgo) mediante dos estrategias basadas únicamente en la serie histórica de precios. La estrategia Contrarian, De Bondt y Thaler (1985), que confía en el cambio de sentido de los precios, y estrategia Momentum, Jegadeesh y Titman (1993), que se basa en la continuación de la trayectoria seguida por el precio. La estrategia contrarian clasifica las acciones de acuerdo a sus rendimientos en un período previo de cinco años, y recomienda comprar los perdedores pasados y vender los ganadores pasados y mantenerlos durante un período de tres a cinco años. La estrategia momentum de forma similar a la anterior, pero para períodos de tres a doce meses recomienda la compra de ganadores pasados y la venta de perdedores pasados. Al probar la existencia de estas anomalías en el mercado chileno se encuentra rentabilidades (teóricas) significativas para la

estrategia contrarian para un período de formación y prueba de 24 meses y rentabilidades significativas para la estrategia de momentum para un período de formación y prueba de 6 meses.
Authors: Barros Eduardo , Barros María Cecilia
Published: July 2020

El presente artículo investiga el impacto potencial del conflicto entre trabajo y familia en la salud y resultados laborales de 206 mujeres que trabajan contratadas en la ciudad de Santiago. Adicionalmente, el estudio examina en qué medida la extensión y la flexibilidad de la jornada laboral se relacionan con el conflicto entre trabajo y familia, y con la salud de las mujeres. Los resultados sugieren que: (a) el conflicto entre trabajo y familia influencia la salud, particularmente la salud mental; (b) la duración de la jornada laboral tiene un efecto sobre la salud de las mujeres que es, sin embargo, mediado por el conflicto entre trabajo y familia; y (c) el conflicto entre trabajo y familia se asocia con resultados laborales tales como satisfacción y desempeño.
Forecasting and forecast-combining of quarterly earnings-per-share via genetic programming
Authors: Rodríguez Arturo , Trigueros Joaquín
Published: July 2020

In this study we examine different methodologies to estimate earnings. More specifically, we evaluate the viability of Genetic Programming as both a forecasting model estimator and a forecast-combining methodology. When we compare the performance of traditional mechanical forecasting (ARIMA) models and models developed using Genetic Programming we observe that Genetic Programming can be used to create time-series models for quarterly earnings as accurate as the traditional linear models. Genetic Programming can also effectively combine forecasts. However, Genetic Programming's forecast combinations are sometimes unable to improve on Value Line. Moreover, simple averaging of forecasts results in better predictive accuracy than Genetic Programming-combining of forecasts. Hence, as implemented in this study, Genetic Programming is not superior to traditional methodologies in either forecasting or forecast combining of quarterly earnings.
Authors: Valenzuela F. Leslier
Published: July 2020

Este artículo evalúa el valor percibido por el usuario del Centro de Salud Primaria en estudio versus el valor entregado por este establecimiento con el propósito de determinar la brecha en la calidad del servicio y los factores que inciden. Se ha usado el modelo SERVQUAL ya validado para el sector salud. Los resultados señalan que el valor de la brecha es negativo ya que los usuarios encuestados esperaban un mejor servicio de lo que en realidad recibieron o percibieron. Las dimensiones más importantes en el estudio para evaluar la calidad del servicio fueron seguridad y tangibilidad.
Authors: Avendaño Luis , Rodríguez Arturo
Published: July 2020

Las acciones de Blanco y Negro nos permiten analizar el impacto de la información en el precio de las acciones. En nuestro trabajo analizamos el periodo entre el año 2005 y el 2009 e incluye la

participación del equipo en nueve torneos. Los resultados de nuestro estudio sugieren que los inversores reaccionan de manera asimétrica ante los resultados de los partidos. En concreto, las pérdidas inesperadas inducen rentabilidades anormalmente negativas, mientras que los resultados esperados no afectan significativamente el desempeño financiero.
Authors: Gregoire C Jorge , Ríos C Jorge
Published: July 2020

La presente investigación intenta detectar si el comportamiento del IPSA durante el periodo 2004-2011 va en línea con sus fundamentos o se encuentra desligado de ellos. El artículo tiene su soporte en los modelos de Blanchard y Watson (1982), Diba y Grossman (1988); el trabajo empírico utiliza el modelo de vectores cointegrados de Johansen (1988). Los resultados indican que el IPSA cointegra con utilidad por acción, IMACEC y S&P500, vale decir, existe una relación de equilibrio de largo plazo entre el IPSA y sus fundamentales y además el modelo de corrección de error permite concluir que estos mismos fundamentos son los que ayudan a corregir las desviaciones de corto plazo respecto del equilibrio de largo plazo.
Authors: Gómez S. Mónica , Paiva Galo , Schnettler M. Berta
Published: July 2020

El propósito de este estudio es contribuir al conocimiento acerca de las marcas de distribuidor en Chile, determinar si existen diferencias en la percepción entre compradores y no compradores y determinar cuáles son los factores que afectan la intención de compra de las marcas de distribuidor y si estos factores difieren con los obtenidos en estudios en mercados de Europa y Estados Unidos. Se realizó una encuesta a nivel de hogares en Temuco, Chile, sobre la base de un muestreo aleatorio polietápico. Los resultados muestran que el 20% de los encuestados es comprador frecuente de marcas de distribuidor y el nivel de compra no difiere por clase social. Utilizando ANOVA de un factor se determinó que los compradores de marcas de distribuidor buscan ahorrar más en sus compras que los no usuarios, tienen mayor percepción de la calidad y mayor conocimiento que los no usuarios de estas marcas. Mediante regresión lineal se obtuvo que los principales factores que determinan la intención de compra son la frecuencia de compra y actitud hacia las marcas de distribuidor, y la variable principal que afecta la actitud es la percepción de la calidad de las marcas de distribuidor. Estos resultados no difieren de los estudios realizados en países de Europa o en Estados Unidos.
Manejo de una fractura corono-radicular complicada. Reporte de un caso clínico
Authors: Pérez Siciliano Ana Lourdes
Published: July 2020

Introducción: En la práctica odontológica se presentan fracturas corono radiculares, lo cual representa un dilema al momento de elegir una alternativa de tratamiento. Ya que el segmento coronal usualmente se encuentra con movilidad y no tiene suficiente tejido para retenerse. La porción radicular de la fractura es capaz de soportar una restauración, pero es muy difícil la preparación porque existe pobre visibilidad y es imposible su acceso. Objetivo: implementar la técnica de extrusión quirúrgica intencional como tratamiento alternativo a la exodoncia, para mantener por más tiempo en cavidad oral al órgano dental afectado. Materiales/métodos: se presenta el manejo clínico de un paciente masculino de 26 años de edad, que acude a la consulta odontológica tras sufrir un accidente de tránsito. Conclusiones: se concluye que la técnica de extrusión quirúrgica intencional es efectiva para dientes fracturados que cumplen los criterios de selección, ya que permite la conservación del órgano dental y reestablece sus funciones.
El sendero hacia la vacuna contra SARS-CoV-2
Authors: Oliva Marin Jose Eduardo
Published: July 2020

El desarrollo de vacunas para infecciones virales ha sido un proceso empírico e iterativo basado en el uso de virus completos atenuados o inactivados. La vertiginosa pandemia de COVID-19 ha estimulado un enorme esfuerzo para desarrollar vacunas contra el SARS-CoV-2. Una vez que la secuencia del genoma del SARS-CoV-2 estuvo disponible a mediados de enero, diferentes laboratorios iniciaron el camino en busca de una vacuna. Las tecnologías que se estan utilizando en la investigacion de vacunas contra el SARS-CoV-2 son las vacunas de ácido nucleico (ADN y ARN), vacunas proteícas recombinantes, vacunas virales basadas en vectores, vacunas vivas atenuadas y vacunas inactivadas. Diez vacunas están en etapa de ensayo clínico y 110 más, están en desarrollo preclínico en 12 países. Aunque la elaboración de una vacuna viral toma un promedio de cinco a diez años, en la crisis actual múltiples actores de varias naciones se han coordinado para que una vacuna contra el SARS-CoV-2 esté lista en el menor tiempo posible, incluso antes de un año. AZD1222, la vacuna vectorizada con adenovirus que codifica la proteína espiga (S) del SARS-CoV-2, desarrollada por el Instituto Jenner y el Grupo de Vacunas Oxford, ambos de la Universidad de Oxford, Inglaterra, es la candidata más prometedora.
Electricity Generation Using a Hybridized Zeolite Adsorption Heat Pump and Heat Engine
Authors: Labik Linus Kweku , Kwakye-Awuah Bright , Sefa-Ntiri Baah , Abavare Eric Kwabena Kyeh , Nkrumah Isaac , Williams Craig
Published: July 2020

The use of adsorption in Thermal Energy Storage has gained considerable research interest of late. Some applications have focused on the use of TES for transformation of low temperature heat in applications such as cooling and heating. Zeolite and water have been studied as suitable materials. Their characteristics as environmentally friendly materials and high affinity makes them conspicuous. The unique properties of zeolites to hold adsorbed water/heat with very minimal loss is also significant. With the aid of a dynamo, a Stirling engine as heat engine and the adsorption energy storage system serving as heat pump was used to generate electricity. The relationship between electricity generation and temperature was investigated. The obtained average temperature and pressure of the zeolite - water adsorption heat pump was also compared with the basic adsorption cycle.
O museu de ciências como espaço de provocação dos sentidos
Authors: Neitzel Adair De Aguiar , Uriarte Monica Zewe , Franklin Katia
Published: July 2020

Esta pesquisa teve, como tema, a educação estética e, como objetivo, discutir como o museu de ciências pode ser também espaço de provocação dos sentidos, de educação estética. Museus de arte são indiscutivelmente lugares de educação estética e os museus de ciências geralmente são relacionados a espaços de conhecimento, com foco no inteligível e não no sensível. Esta pesquisa qualitativa ocorreu no Museu Oceanográfico da Universidade do Vale do Itajaí, Balneário Piçarras, Santa Catarina, Brasil, e os instrumentos de coleta de dados foram diários de campo dos pesquisadores, fotos e entrevista com o curador do museu. A análise da entrevista e do diário pautou-se na análise de conteúdo de Franco (2008) e a das imagens segundo os conceitos de punctum e studium, de Barthes (2010). O aporte teórico de sustentação contou com Bachelard (2000), Franklin (2019), Heidegger (2015) e Martins (2012, 2014), entre outros. Como resultados, foi possível evidenciar que: o museu oceanográfico possui espaços esteticamente planejados, cuja organização, iluminação e exploração de sonoridades afetam o sujeito, provocando-o à experiência. Identificou-se, também, que as escolhas efetuadas pela curadoria foram intencionais para sensibilizar o público e que elas possibilitaram que espaços e objetos fossem propositores de experiências porque ampliam o potencial estético do museu. No entanto, como a experiência é um movimento individual, nem todos podem por ele ser afetados.
Análise da relação entre riscos e remuneração dos executivos nas empresas listadas na B3
Authors: Rengel Rodrigo , Sousa Allison Manoel de , Monteiro Januário José , Meurer Rodrigo Malta
Published: July 2020

Objetivo do estudo: Analisar a relação entre a remuneração dos executivos e o risco das empresas de diferentes setores da B3.Metodologia: Analisou-se a relação da remuneração dos executivos e o risco de 61 companhias dos setores de Abatedouros; Bancos; Construção de edifícios residenciais; Geração, transmissão e distribuição de energia elétrica; Locação de Imóveis, e; Telecomunicações, entre 2011 e 2017 por meio da estatística descritiva e por meio do modelo multivariado em painel.Relevância: Discute-se a influência da remuneração dos executivos no risco das companhias, em que os resultados são divergentes e foram realizados em países emergentes e desenvolvidos que não apresentam características macroeconômicas, como elevadas taxas de inflação e de juros no caso do Brasil, dessa forma, este estudo apresenta evidencias nessa diferente perspectiva.Principais Resultados: Os achados demonstram que a remuneração dos executivos está negativamente associada com o risco das empresas. Contudo, a variação da remuneração dos executivos influencia no risco das companhias. Adicionalmente, encontrou-se que o porte das organizações está positivamente relacionado com risco das empresas, diferentemente da rentabilidade do ativo, que está negativamente relacionada com o risco das companhias.Contribuições teóricas: O presente estudo apresenta contribuições quanto às implicações do incentivo a partir da remuneração no risco em empresas de diferentes setores do mercado de capitais brasileiro, sobretudo, ao considerar que os gerentes podem, a partir das suas decisões, selecionar projetos que influenciam no risco das operações da companhia.
PROPOSALS REGARDING DIRECTIONS OF CHANGES
IN THE CONTENT OF NORMATIVE DOCUMENTS
REGULATING THE TRANSPORT OF THE MOST
IMPORTANT PEOPLE IN THE STATE BY MILITARY
AIRCRAFT
Authors: BARTNIK Ryszard , TATAROWSKI Dariusz
Published: July 2020

Ensuring the security of people who hold the most important state positions is one
of the most significant tasks for all institutions and people involved in securing the
official activities of such people, including their mobility and movement by air. This
requires undertaking actions aimed at eliminating security threats and thus minimising
risk. Proposals regarding directions of changes in the content of normative documents
concerning the transport of the most important people in the state by military aircraft
concern: flight experience of crews; selection and assembly of the crew; planning
the flight and preparing the crew for the flight; preparation, equipment and technical
condition of the aircraft and atmospheric conditions and analysis of them.
Discovery of Small Molecule Inhibitors for Histone Methyltransferases in Cancer
Authors: A. Motolani Aishat , Sun Mengyao , Martin Matthew , Sun Steven , Lu Tao
Published: July 2020

Cancer is the second leading cause of mortality in the United States. There are several therapeutic regimens employed to mitigate the mortality rate of cancer. This includes the use of chemotherapy, radiation, immunotherapy, and precision medicine/targeted therapy. Targeted therapy involves the use of drugs that target a specific pathway or biomolecule compromised in cancer for cancer treatment. Aberrant expression of epigenetic enzymes has been well documented for their contribution in driving tumorigenesis and other cancer hallmarks. Hence, there is an urgent need for novel drug discovery and development in epigenetics to help combat various cancer morbidities. Herein, we review the roles and consequences of dysregulated function of several epigenetic enzymes, with a focus on histone methyltransferases (HMTs). Additionally, we discussed the current efforts made in the development of small molecule inhibitors for a few representative HMTs implicated in different cancers. Furthermore, the common screening assays used in discovering potent small molecule inhibitors were also detailed in this chapter. Overall, this book chapter highlights the significance of targeting HMTs in different cancers and the clinical application potentials/limitations faced by the developed or emerging small molecule inhibitors of HMTs for the purpose of cancer therapy.
Recent Advances in Digestive Tract Tumors: Updates From the 5th Edition of the World Health Organization “Blue Book”
Authors: Gonzalez Raul S. , Raza Anwar , Propst Robert , Adeyi Oyedele , Bateman Justin , Sopha Sabrina C. , Shaw Janet , Auerbach Aaron
Published: July 2020

Context.—

The World Health Organization Classification of Tumours: Digestive System Tumors, 5th edition, was published in 2019 and shows several impactful changes as compared with the 4th edition published in 2010. Changes include a revised nomenclature of serrated lesions and revamping the classification of neuroendocrine neoplasms. Appendiceal goblet cell adenocarcinoma is heavily revised, and intrahepatic cholangiocarcinoma is split into 2 subtypes. New subtypes of colorectal carcinoma and hepatocellular carcinoma are described. Precursor lesions are emphasized with their own entries, and both dysplastic and invasive lesions are generally recommended to be graded using a 2-tier system. Hematolymphoid tumors, mesenchymal tumors, and genetic tumor syndromes each have their own sections in the 5th edition. New hematolymphoid lesions include monomorphic epitheliotropic intestinal T-cell lymphoma; duodenal-type follicular lymphoma; intestinal T-cell lymphoma, not otherwise specified; and indolent T-cell lymphoproliferative disorder of the gastrointestinal tract. This paper will provide an in-depth look at the changes in the 5th edition as compared with the 4th edition.

Objective.—

To provide a comprehensive, in-depth update on the World Health Organization classification of digestive tumors, including changes to nomenclature, updated diagnostic criteria, and newly described entities.

Data Sources.—

The 5th edition of the World Health Organization Classification of Tumours: Digestive System Tumours, as well as the 4th edition.

Conclusions.—

The World Health Organization has made many key changes in its newest update on tumors of the digestive system. Pathologists should be aware of these changes and incorporate them into their practice as able or necessary.
Participatory Approaches for Designing and Sustaining Privacy-Oriented Library Services
Authors: Young Scott W. H. , Walker Paige , Swauger Shea , Gibeault Michelle J. , Mannheimer Sara , Clark Jason A.
Published: July 2020

Privacy is a long-held value of information professionals, but new technologies of the contemporary digital age pose new risks to privacy. In an effort to build participatory, profession-wide action in support of designing privacy-oriented library services, two groups were formed with the goal of generating ideas and sustaining action: the National Forum on Web Privacy and Web Analytics, and Digital Library Federation Technologies of Surveillance Working Group. In this paper, members of these two groups present case study descriptions and analysis via reflective self-assessment. The authors discuss how these groups can serve as models of participatory action for integrating the value of privacy into the design of library services, technologies, policy, and outreach.
Redesigning Technical Services for the 21st Century: A Case Study from the University of Alabama Libraries
Authors: Arthur Michael A , Jackson Millie L
Published: July 2020

The University of Alabama Libraries began the process of workflow analysis over a decade ago.  Primarily focused on the traditional technical services areas, this process has been iterative and has evolved from looking for efficiencies to a broader change in the culture and an acceptance of an ongoing process of improvement.  This article distills lessons learned from workflow analysis in the areas of acquisitions, electronic resources, and cataloging/metadata but also examines how these changes impacted the broader library and philosophies of collection development and management.
Book Review: Metadata for Transmedia Resources
Authors: Davis Kalan Knudson
Published: July 2020

From the moment that author Ana Vukadin invokes the memory of small-town murder victim Laura Palmer on page one of Metadata for Transmedia Resources, the reader is transported into a world of intertextuality, transfictionality, and various fictional worlds that seem stranger and yet just as familiar as Twin Peaks. Using liberal amounts of examples from popular culture and literary canons—from J. K. Rowling’s Wizarding World of Harry Potter to the Wachowskis’ Matrix—Vukadin goes down the veritable rabbit hole of transmedia resources, explains why transmedia resources matter increasingly to libraries, and outlines best practices in describing and organizing the metadata for transmedia resources. Resplendent with modeling examples and illustrations from fictional worlds, the subtle differences in and complexity of transmedia resources becomes clear.
“Com açúcar e com afeto”: o trabalho invisibilizado das mulheres costureiras.
Authors: Käercher Karen Ambrozi , De Siqueira Monalisa Dias
Published: July 2020

Diferentes saberes e fazeres como a cura, o partejar, o cozinhar, o bordar e a costura foram reservados às mulheres nos espaços subalternos. Apesar de ter se tornado sinônimo de isolamento feminino, o espaço doméstico foi ao longo dos anos organizado e governado pelas próprias mulheres. Tornando-se, desta forma, um lócus de conhecimento, mesmo que não evidente. Este artigo versa, especificamente, sobre o saber fazer da costura e os aspectos que o fazem invisibilizados no mundo do trabalho. Para tanto, abordamos o processo de regulamentação da profissão de costureira em um diálogo com as narrativas das interlocutoras e as teorias desenvolvidas no âmbito sócio-antropológico dos ofícios e profissões. Dentre os aspectos que sujeitam tal saber fazer ao âmbito informal, observamos que a tarefa intermitente de cuidar é um importante ponto de partida para compreender este universo. Discutimos, igualmente, a forma como os saberes e fazeres, o cuidado, o afeto e as emoções confundem-se com o papel das mulheres no mundo.
Territórios de cuidado: reflexões sobre ética e a prática do cuidado na velhice.
Authors: Veiga Marcia Regina Medeiros
Published: July 2020

A partir de um estudo etnográfico desenvolvido em Coimbra, Portugal, durante os anos 2013 a 2017, que teve como sujeitos as relações estabelecidas entre pessoas idosas e seus territórios de vivência e maior permanência e frequência, este artigo propõe uma reflexão acerca do cuidado. Historicamente, o cuidado tem pontuado relações fortemente hierárquicas, envolvendo vulnerabilidades e desigualdades sociais, econômicas, etárias e de gênero. Esta hierarquização tende a fragilizar os sujeitos que, dependendo da relação estabelecida, encontram-se na posição de quem é cuidado ou, inversamente, de quem cuida. Por outro lado, as abordagens acadêmicas a respeito do cuidado têm privilegiado as questões relativas ao trabalho, nomeadamente ao trabalho doméstico e à prestação de serviços educativos, de saúde ou estéticos. As reflexões aqui sugeridas pretendem aprofundar a temática do cuidado enquanto ethose práxispossíveis e necessárias, que atravessam as relações sociais e que tenham como ponto originário, dialético e de encontro os territórios de proximidade.
Job Quality in the Economy for the Common Good: conceptualisation and implementation in Austria and Germany
Authors: Ollé-Espluga Laia , Muckenhuber Johanna , Hadler Markus
Published: July 2020

The Economy for the Common Good (ECG) is an Austrian-born movement promoting an alternative economic model built on values oriented to the common welfare such as human dignity, solidarity, ecological sustainability, social justice, transparency and democratic participation. To provide (high) quality of work plays an important role in the ECG philosophy but little is known on the actual labour conditions of workers employed in such type of firms and whether they differ from those of firms in the “regular” default economy. In this paper we focus on Austria and Germany, the countries where this economic model is most widespread, and present results on the general structure of firms following the ECG model and the working and employment conditions in these firms. We identify three main dimensions of job quality promoted by the ECG model, namely employment quality, information and worker participation, and psychosocial working conditions. Using data published in the Common Good Reports, we extracted data informing about these dimensions of job quality at an organisational level of 59 firms with at least 5 employees in Austria and Germany. We discuss which work-related features are promoted by organisations following the ECG model and compare them to the standards encouraged by the model. Results are also discussed with respect to evidence on the quality of work in the social economy.
DIGITAL TECHNOLOGY AND COSTUME DESIGN IN ANIMATTION: A STRUCTURALIST READING OF PETER DEL’S FROZEN
Authors: Akpan Margaret , Udofia Anietie Francis , Edem Ndifreke Enefiok
Published: July 2020

The deployment of digital technology to create captivating spectacles in films has reflected the boundlessness of man’s ingenuity in recreating his world. Such creativity reflects considerably in the fluidity of using the computer to generate human concepts of the role of costume grounded on theatrical system in animation. The world of animation is always synergized with marvels that defy the rational proofs for objectivity in the human world. This paper evaluates the use of digital technology to generate costume design to reflect the system of human thought in animation using Peter Del Velcho’s Frozen as paradigm. The paper uses qualitative research method to examine facts and bases its argument on Structuralism. Findings show that costume functions as a system in theatrical and film productions. In animation, the insight of human imagination through costume design is easily brought to bear, and the reality of creativity to man is ingrained in communication through captivating pictorials without impairment. Costume design can be generated from computer through knowledge and expertise. With the knowledge of computer, especially in the academic environment, unlimited streams of creativity may unfold to support the reality of entrepreneurial schemes in the society. When a costume is designed to conform to the order of a design system within a system of thought to pass on information, any medium can function as a dependable conduit to communicate.
COLLABORATIVE POLICING FOR HANDLING COMMUNALCONFLICTS (CASE STUDY: CONFLICTS BETWEENPAPUANS AND YOGYAKARTANS)
Authors: Hutapea Tagor
Published: July 2020

In this study, there are 2 (two) groups of conflicting citizens, namely the Papuans living in Yogyakarta which consist of students and working residents, and Yogyakartans, that is several ethnic groups other than ethnic Papuan. This study uses a qualitative approach and the paradigm of constructivism. The root of the conflicts is the Papuans’ perception of their historical past as well as cultural elements such as poverty, lack of education, and lifestyle. The triggers of conflict is the Papuans’ negative lifestyles, namely frequently get drunk, eating without paying the bill, breaking traffic rules, and always shouting “merdeka” (meaning independence) when making protesting rallies. On the other side, the people of Yogyakarta have negative prejudices against Papuans and discriminate them accordingly, which could even be perceived as a racial attitude.The Yogyakartan police seem not to have a good understanding about the root and causes of conflicts, because they tend to handle conflicts by repressive measures only after the violence had occurred. They clearly believe Papuan case is politically sensitive and full of outsiders’ influences. They also fail to have an open communication with the Papuans because the Papuans do not trust the police. For those reasons, the police often let Papuans who broke the law left unpunished, which produces suspicion among the people of Yogyakarta that the police might be afraid of the Papuans.
Prediction of the Longitudinal Arch Angle During Running for Various Foot Strike Patterns Using a Static Longitudinal Arch Angle Measurement
Authors: Tsujimoto Norio
Published: July 2020

Background

The medial longitudinal arch angle (LAA) of the foot has been used as an index of high and low arches. The LAA during the support phase of running (LAArun), which may be related to lower-limb injuries, is commonly predicted from the LAA at standing (LAAstand). However, it is not known whether this prediction is valid for all of the foot contact patterns. The purpose of this study was to verify whether prediction of the LAArun from the LAAstand is valid for different foot strike patterns.

Methods

The 26 participants were divided into a rearfoot strike group (n = 15) and a nonrearfoot strike group (n = 11). The LAA was obtained by measuring the angle formed between the line from the navicular bone to the medial malleolus and the line from the navicular bone to the first metatarsal head. The LAAstand and the minimum value of the LAArun, when the arch is most collapsed, were measured using a motion capture system.

Results

There were no significant differences in the LAAstand, the LAArun, and the difference (LAAstand – LAArun) between the two groups. In both groups, a very strong and significant correlation was found between the LAAstand and the LAArun. Furthermore, a nearly identical equation for predicting the LAArun from the LAAstand was derived for the two groups.

Conclusions

The LAArun can be predicted from the LAAstand for any foot strike pattern with almost the same equation.
Simultaneous Pantalar Dislocation and Bimalleolar Ankle Fracture
Authors: Vosoughi Amir R. , Dashtdar Babak , Emami Mohammad J. , Solooki Saeed , Pourabbas Babak
Published: July 2020

A 17-year-old boy presented with a totally dislocated talus and open bimalleolar ankle fracture dislocation. After thorough debridement and irrigation, the talus and bimalleolar fracture were reduced and fixed. At 21 months after surgery, he could walk using regular shoes without any aid but with moderate pain in the sinus tarsi during activities. No evidence of osteonecrosis or infection was seen in the last radiograph, except for a small degree of narrowing in the talonavicular joint. Reimplantation and fixation of pantalar dislocation seems to have an acceptable outcome.
Structure and mechanism of the Mrp complex, an ancient cation/proton antiporter
Authors: Steiner Julia , Sazanov Leonid
Published: July 2020

Multiple resistance and pH adaptation (Mrp) antiporters are multi-subunit Na+(or K+)/H+exchangers representing an ancestor of many essential redox-driven proton pumps, such as respiratory complex I. The mechanism of coupling between ion or electron transfer and proton translocation in this large protein family is unknown. Here, we present the structure of the Mrp complex fromAnoxybacillus flavithermussolved by cryo-EM at 3.0 Å resolution. It is a dimer of seven-subunit protomers with 50 trans-membrane helices each. Surface charge distribution within each monomer is remarkably asymmetric, revealing probable proton and sodium translocation pathways. On the basis of the structure we propose a mechanism where the coupling between sodium and proton translocation is facilitated by a series of electrostatic interactions between a cation and key charged residues. This mechanism is likely to be applicable to the entire family of redox proton pumps, where electron transfer to substrates replaces cation movements.
Chemical space exploration: how genetic algorithms find the needle in the haystack
Authors: Henault Emilie S. , Rasmussen Maria H. , Jensen Jan H.
Published: July 2020

We explain why search algorithms can find molecules with particular properties in an enormous chemical space (ca 1060 molecules) by considering only a tiny subset (typically 103−6 molecules). Using a very simple example, we show that the number of potential paths that the search algorithms can follow to the target is equally vast. Thus, the probability of randomly finding a molecule that is on one of these paths is quite high and from here a search algorithm can follow the path to the target molecule. A path is defined as a series of molecules that have some non-zero quantifiable similarity (score) with the target molecule and that are increasingly similar to the target molecule. The minimum path length from any point in chemical space to the target corresponds is on the order of 100 steps, where a step is the change of and atom- or bond-type. Thus, a perfect search algorithm should be able to locate a particular molecule in chemical space by screening on the order of 100s of molecules, provided the score changes incrementally. We show that the actual number for a genetic search algorithm is between 100 and several millions, and depending on the target property and its dependence on molecular changes, the molecular representation, and the number of solutions to the search problem.
Air quality improvement during triple-lockdown in the coastal city of Kannur, Kerala to combat Covid-19 transmission
Authors: Resmi C.T. , Nishanth T. , Satheesh Kumar M.K. , Manoj M.G. , Balachandramohan M. , Valsaraj K.T.
Published: July 2020

The novel SARS-CoV-2 coronavirus that emerged in the city of Wuhan, China, last year has since become the COVID-19 pandemic across all continents. To restrict the spread of the virus pandemic, the Government of India imposed a lockdown from 25 March 2020. In India, Kannur district was identified as the first “hotspot” of virus transmission and a “triple-lockdown” was implemented for a span of twenty days from 20 April 2020. This article highlights the variations of surface O3, NO, NO2, CO, SO2, NH3, VOC’s, PM10, PM2.5 and meteorological parameters at the time of pre-lockdown, lockdown and triple-lockdown days at Kannur town in south India using ground-based analyzers. From pre-lockdown days to triple-lockdown days, surface O3 concentration was found to increase by 22% in this VOC limited environment. NO and NO2 concentrations were decreased by 61% and 71% respectively. The concentration of PM10 and PM2.5 were observed to decline significantly by 61% and 53% respectively. Reduction in PM10 during lockdown and triple-lockdown days enhanced the intensity of solar radiation reaching the lower troposphere, and increased air temperature and reduced the relative humidity. Owing to this, surface O3 production over Kannur was found to have increased during triple-lockdown days. The concentration of CO (67%), VOCs (61%), SO2 (62%) and NH3 (16%) were found to decrease significantly from pre-lockdown days to triple-lockdown days. The air quality index revealed that the air quality at the observational site was clean during the lockdown.
Factors Affecting the Adoption of Fuel-efficient Stove in Dessie Zuria Woreda, Amhara Regional State, Ethiopia
Authors: Kassa Sosina , Admasu Wondiye , Yesgat Shegaw
Published: July 2020

The three-stone fire stove is inefficient in converting solid fuels to energy and, it only yields 5 up to 20 per cent of the overall thermal efficiency. Fuel-efficient stoves are expected to contribute to the environment, economic and health sectors by achieving sustainability in the energy sector. Therefore, due to the benefits of the fuel-efficient stoves, the need to study factors influencing the adoption of these stoves are becoming more important. The study aimed to assess factors influencing the adoption of fuel-efficient stoves in Dessie Zuria Woreda. Both qualitative and quantitative approach was used. Data was collected through questionaries’ in 166 households and interview from 10 key informants. The collected data from questionaries’ was analysed by descriptive statistics, independent sample t-test, one sample t-test and binary logistic regression. One sample t-test result showed that the perception of peoples is significantly different from neutral. The independent sample t-test showed that the average time taken to collect fuelwood is significantly different between adopters and non-adopters.  Educational level, family size, distance from the city, awareness, access to training, the time is taken to collect fuelwood and membership of social organization group were found to be significant in determining the probability of fuel-efficient stove adoption positively at p<0.05 level of significance. The main barrier for not adopting fuel-efficient was found to be a lack of awareness about the benefit of the stove and the cost of the stove.
Modeling and Forecasting Exchange Rate Values between Naira and US Dollar to Assess the Effect of COVID-19 Pandemic Period on the Rate
Authors: Okon E. J. , Ikpang I. N.
Published: July 2020

Aims: To model exchange rate values between Naira and US Dollar in order to assess the effect of the COVID-19 pandemic period on the rate by examining the forecasts.

Study Design: The study design is the longitudinal research design.

Place and Duration of Study: Real life data of monthly average Nigerian Naira-US Dollar exchange rates from Jan.1991 to April 2020 obtained from the Data and Statistics publication of Central Bank of Nigeria.

Methodology: The traditional time series ARIMA model is employed for forecasting Naira/Dollar exchange rate using Monthly data covering the period January, 1991 to April, 2020. The ACF and PACF plots showed tendency that the differenced exchange rate data behave as both having autoregressive and moving average processes as the ACF has significant peaks at different lags and a gradual decay to zero is indicated by the PACF.

Results: Using the AIC, BIC, and HQC as model selection criterion the ARIMA (2, 1, 3) were selected as the model with the best fit for the exchange rate data as compared to the other selected models. The ACF of the residuals is plotted with lags up to 20 and the residuals coefficient did not exceed the 95% confidence limit which indicates that the model is a good fit and is appropriate for the data. Plots of in-sample and out-of-sample forecast were also made.

Conclusion: The out-of-sample forecast plot for period of 12 months revealed that naira will continue to depreciate on US dollar for the period forecasted with very high tendencies during the COVID-19 pandemic period.
Adoption of Agroforestry Practices by Arable Farmers in Igabi Local Government Area of Kaduna State, Nigeria
Authors: Oladele O. N. , Emeghara U. U. , Ishola B. F. , Ayodele J. T. , Awobona T. A. , Olukotun O.
Published: July 2020

The study examined the level of adoption of agroforestry practices among arable farmers in Igabi Local Government Area of Kaduna State, Nigeria. Data was collected from 100 randomly selected farmers with the use of structured questionnaire. The questionnaire focused on socio-economic characteristics of the farmers, level of adoption of agroforestry practices, types of agroforestry practices adopted, factors influencing the willingness of farmers to adopt agroforestry practices and constraints faced by the farmers in adopting agroforestry-based farming. Data was analysed using frequency, percentage, mean and probit model. The study found that male (78.00%) dominated farming activities in the study area, the majority (96.00%) of the farmers is in the age group of 21-60 years, most of the farmers (87.00%) are educated and the majority (76.00%) of them had more than 5 years farming experience. The study revealed that the adoption of agroforestry practices is high (79.00%) in the study areas. Retention of trees on farmland was mostly adopted (31.00%) while shifting cultivation is the least adopted (5.00%) agroforestry practice in the study area. The result of the probit model analysis showed that farm size (1.1122), farming experience (0.0231) and access to credit (0.1103) were the factors that significantly influence farmers’ willingness to adopt agroforestry practices at 10.00% probability level in the study area. However the level of adoption of agroforestry practices in the study area was hampered by constraints such as high capital intensive nature of agroforestry practices (87.00%), poor extension service (80.00%), inadequate capital (77.00%), poor technical know-how of agroforestry practices (45.00%), land tenure system (36.00%) and lack of access to credit (13.00%). The study suggests that to enhance the adoption level of agroforestry practices among farmers in the study area, improved agroforestry extension services should be provided to farmers; workshops, seminars and symposia should be organized for adequate training of farmers to understand the techniques of agroforestry; and farmers should be encouraged to form cooperative societies so that they can have access to credit facility to boost their capital.
Synthesis of Silver Nano Particles from Adansonia digitata Leaf Extract and Its Antimicrobial Properties
Authors: Akintola A. O. , Azeez A. M. , Kehinde B. D. , Oladipo I. C.
Published: July 2020

Silver nano particles (AgNPs) were green synthesized using Adansonia digitata leaf extract. The synthesized silver nano particles were characterized in terms of synthesis, size, shape, morphology and capping functionalities by UV-Visible Spectroscopy, Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). Antimicrobial activity of the synthesized silver nano particles was investigated by well diffusion method. The antibacterial activity of the nano particle was studied against Staphylococcus aureus, Escherichia coli, Bacillus subtilis, Pseudomonas aeurigunosa, Salmonella typhi and Klebsiella pneumonae while the antifungal activity was studied against Candida albicans, Aspergillus niger, Penicillum notatum and Rhizopus stolomifer. The synthesized AgNPs was active against all the studied microorganisms. Staphylococcus aureus was the most susceptible bacterium (inhibition zones ranging from 12.00 to 28.00 mm, MIC: 30 µl, MBC: 50 µl) while Aspergillus niger was the most susceptible fungi (inhibition zones ranging from 10.00 to 18.00 mm, MIC: 90 µl, MFC: 120 µl. In conclusion the synthesized silver nanoparticles was found to have antimicrobial activity against the pathogenic bacteria and fungi tested and hence has a great potential in biomedical application for the treatment of microbial infections.
Unsaturated Stream-Aquifer Connection When the Riverbed Itself Desaturates
Authors: Seytoux Hubert J. Morel-
Published: July 2020

In a previous series of 3 articles in this Journal we have looked at the situation when the aquifer desaturates while the riverbed (clogging layer) remained saturated.  However it is quite possible that the riverbed itself will desaturate, particularly if the river stage is low and especially when the river goes dry. In this article we look at the situation when indeed the riverbed desaturates as the capillary pressure at the interface between the bottom of the riverbed and the top of the unsaturated zone in the aquifer exceeds the riverbed entry pressure, while the river itself does not go dry. Utilizing different soil textures for a riverbed we found that the seepage rate, following a slight increase in value, tends rapidly to an asymptotic limit which is not much higher than the seepage value at incipient desaturation of the riverbed.

Thus the assumption that the riverbed does not desaturate may lead to grossly exaggerated values of the seepage rate.
Irc3 is a monomeric DNA branch point‐binding helicase in mitochondria of the yeast Saccharomyces cerevisiae
Authors: Piljukov Vlad–Julian , Garber Natalja , Sedman Tiina , Sedman Juhan
Published: July 2020

Irc3 is a superfamily II DNA helicase required for the maintenance of mitochondrial DNA stability in Saccharomyces cerevisiae. Here, we show that recombinant Irc3 is a monomeric protein and that it can form a binary complex with forked DNA. The catalytically active enzyme is a monomer as no positive cooperativity of ATP hydrolysis or DNA unwinding can be detected. Interestingly, we find that Irc3 prefers to unwind the nascent lagging strand at a replication fork. Using DNase I footprinting, we demonstrate that Irc3 captures DNA substrates by establishing a strong contact at the DNA branching point. Additional protections on the lagging strand template suggest a 3′‐to‐5′ polarity for Irc3 movement.
Identification of three predictors of gastric cancer progression and prognosis
Authors: Huang Kai , Chen Shuhua , Xie Rongzhang , Jiang Pengpeng , Yu Changjun , Fang Jinmei , Liu Xingcun , Yu Fazhi
Published: July 2020

Abnormal gene expression is an established cause of gastric cancer (GC) initiation and progression. In this study, we aimed to identify several key genes that could be used to effectively predict progression and prognosis in patients with GC. The Cancer Genome Atlas and the Gene Expression Omnibus database were used to identify candidate genes. Fourteen genes were found to associate highly with progress, metastasis, and survival of GC. Five of these genes were overexpressed in tumor tissue compared to adjacent normal tissue. This was confirmed by reverse transcription‐polymerase chain reaction and western blotting for myosin‐Va (MYO5A), phospholipid transfer protein (PLTP), and tripeptidyl peptidase 1 (TPP1), while the CCK8 assay was used to show that these three genes promote GC cell proliferation. In summary, we demonstrate that MYO5A, PLTP, and TPP1 expression may be suitable markers for the progression and prognosis of GC.