bluuebunny/crossref_metadata_2025 huggingface dataset:
Association of Children’s Behavioral Changes and Parent-Child Relationship with Parental Anxiety under Home Confinement during the COVID-19 Pandemic: A Cross-sectional Study (Preprint)
Authors: Yang Wenhan , Xu Guifeng , Liu Buyun , Zheng Juan , Gao Rui , Li Xiuhong , Jing Jin
Published: September 2020

BACKGROUND

Coronavirus Disease-19 (COVID-19) has become a global pandemic, and mental health of children and parents are affected by confinement in home. While parental mental health is critical to the whole family’s psychological reaction to unusual situations, they are also affected by their children’s behaviors and parent-child relationship.

OBJECTIVE

To examine how the changes of children’s behaviors and parent-child relationship affect parental anxiety during this difficult time.

METHODS

A cross-sectional online investigation was conducted with snowbell sampling to collect the information about the behavioral changes of children and the anxiety of parents from February 23 to March 3, 2020. 642 participants who had children aged 3-17 yeas included in this study. Information about behavioral change of children was reported by parents with a questionnaire, parental anxiety was assessed with Self-rating Anxiety Scale (SAS, Chinese Version). The descriptive analysis were used to display the distribution of variables in respective domains. Multiple logistic regression was used to estimate the Odds ratios (ORs) and 95% confidence intervals (CI) of parental anxiety and potential variables.

RESULTS

This study included 642 participants (mean age 38.59±4.58, female 78.82%). The mean SAS-C score was 38.04±8.43. The percentage of anxiety was 9.81% (63/642) overall, and 8.10% (52/6642) for mild anxiety, 1.40% (9/642) for moderate anxiety, and 0.31% (2/642) for severe anxiety. Among children’s behaviors, decreased time of outdoor activity than usual was associated with a lower odd of parental anxiety, with an adjusted OR of 0.31 (95% CI, 0.11-0. 87). Parents’ satisfaction with children's behaviors was associated with a lower odd of parental anxiety (OR, 0.13; 95% CI, 0.05-0.35). In addition, we observed a significant association of worse behavioral performance than usual and worse family relationship than usual with anxiety among parents with the adjusted OR of 2.78 (95% CI, 1.35-5.73), and 2.67 (95% CI, 1.13-6.32), respectively.

CONCLUSIONS

Under the stay-at-home order during COVID-19 outbreak in China, worse behavioral performance of children than usual and worse family relationship than usual were associated with increased parental anxiety, while less outdoor activities time among children and being satisfied with children's behaviors were associated with reduced parental anxiety. Our finding suggested that family mental health support and promotion should consider the children’s behavioral regulation and parent-child relationship as essential components.
Emotional Bias Modification for Individuals With Attention Deficit Hyperactivity Disorder: Protocol for a Co-Design Study (Preprint)
Authors: Zhang Melvyn , Vallabhajosyula Ranganath , Fung Daniel
Published: September 2020

BACKGROUND

Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder with a worldwide prevalence rate of 5%. Individuals with ADHD often tend to have difficulties with emotional regulation. The advances in experimental psychology have led to the discovery of emotional biases. Targeting emotional biases could potentially help improve the core symptoms of irritability and short-temperedness among these individuals. Emotional biases refer to the preferential allocation of attention toward emotional stimuli. A recent study reported the presence of emotional biases among individuals with ADHD when they compared individuals with ADHD with those without. Gamification technologies have been explored to help diminish the repetitiveness of the task and increase the intrinsic motivation to train. These inconsistent findings of the impact of gaming on the effectiveness of mobile interventions call for further work to better understand the needs of patients (users) and health care professionals.

OBJECTIVE

The aim of this research study is to collate health care professionals’ perspectives on the limitations of the existing task, and to determine if gamification elements could be incorporated, to refine the conventional intervention.

METHODS

A qualitative research approach, that of a focus group, will be used. Health care professionals from the Department of Development Psychiatry, Institute of Mental Health, Singapore will be invited to participate in this qualitative research. During the focus group, participants are to comment on the limitations of the existing emotional bias intervention; recommend strategies to improve the intervention; and provide their perspectives pertaining to the use of gamification to improve the intervention.

RESULTS

We expect that the study will be completed in 12 months from the publication of this protocol.

CONCLUSIONS

To our best knowledge, this is perhaps one of the only few studies that have attempted to explore emotional biases among adolescents with ADHD.

INTERNATIONAL REGISTERED REPORT

PRR1-10.2196/24078
Patients’ and Clinicians’ Perceived Trust in Internet-of-Things Systems to Support Asthma Self-management: Qualitative Interview Study (Preprint)
Authors: Hui Chi Yan , McKinstry Brian , Fulton Olivia , Buchner Mark , Pinnock Hilary
Published: September 2020

BACKGROUND

Asthma affects 235 million people worldwide. Supported self-management, including an action plan agreed with clinicians, improves asthma outcomes. Internet-of-things (IoT) systems with artificial intelligence (AI) can provide customized support for a range of self-management functions, but trust is vital to encourage patients’ adoption of such systems. Many models for understanding trust exist, some explicitly designed for eHealth, but no studies have used these models to explore trust in the context of using IoT systems to support asthma self-management.

OBJECTIVE

In this study, we aim to use the McKnight model to explore the functionality, helpfulness, and reliability domains of patients’ and clinicians’ trust in IoT systems to deliver the 14 components of self-management support defined by the PRISMS (Practical Reviews in Self-Management Support) taxonomy.

METHODS

We used think-aloud techniques in semistructured interviews to explore the views of patients and clinicians. Patients were recruited from research registers and social media and purposively sampled to include a range of ages, genders, action plan ownership, asthma duration, hospital admissions, and experience with mobile apps. Clinicians (primary, secondary, and community-based) were recruited from professional networks. Interviews were transcribed verbatim, and thematic analysis was used to explore perceptions of the functionality, helpfulness, and reliability of IoT features to support components of supported self-management.

RESULTS

A total of 12 patients and 12 clinicians were interviewed. Regarding perceived functionality, most patients considered that an IoT system had functionality that could support a broad range of self-management tasks. They wanted a system to provide customized advice involving AI. With regard to perceived helpfulness, they considered that IoT systems could usefully provide integrated support for a number of recognized components of self-management support. In terms of perceived reliability, they believed they could rely on the system to log their asthma condition and provide preset action plan advice triggered by their logs. However, they were less confident that the system could operate continuously and without errors in providing advice. They were not confident that AI could generate new advice or reach diagnostic conclusions without the interpretation of their trusted clinicians. Clinicians wanted clinical evidence before trusting the system.

CONCLUSIONS

IoT systems including AI were regarded as offering potentially helpful functionality in mediating the action plans developed with a trusted clinician, although our technologically adept participants were not yet ready to trust AI to generate novel advice. Research is needed to ensure that technological capability does not outstrip the trust of individuals using it.

CLINICALTRIAL
Perceptions and Acceptability of a Smartphone App Intervention (ChildSafe) in Malaysia: Qualitative Exploratory Study (Preprint)
Authors: Yong Teresa Sui Mien , Perialathan Komathi , Ahmad Masitah , Juatan Nurashma , Abdul Majid Liana , Johari Mohammad Zabri
Published: September 2020

BACKGROUND

Home is a vulnerable place for accidental child injuries. Unintentional injuries are a leading cause of death, hospitalization, and disabilities. These injuries are considered preventable and if not tackled, they will continue to be a persisting problem. Smartphones have become increasingly important in our everyday life and is an important tool not only for communication but also for other purposes—they have apps that can be used for various purposes. Therefore, an app-based intervention (ChildSafe) was developed to assess and reduce child injury at home.

OBJECTIVE

This study aimed to evaluate the acceptance of the ChildSafe smartphone app intervention by parents/guardians.

METHODS

This study was conducted using a qualitative exploratory approach on selected participants of the ChildSafe intervention app study. A total of 27 semistructured in-depth interviews were carried out among parents or guardians who have at least one child between the age of 0 and 59 months in the area of Sungai Buloh, Selangor, between November 2017 and March 2018. Interview questions were developed from the consolidated framework for implementation research (CFIR). Interviews were recorded, transcribed verbatim, and data were thematically analyzed guided by CFIR.

RESULTS

The study revealed users’ perception on usability, feasibility, and acceptability toward the ChildSafe app. Three CFIR domains were identified: intervention characteristics, inner setting, and characteristics of individuals. A total of 5 constructs were revealed under intervention characteristics: evidence strength and quality, relative advantage, adaptability, trialability, and design quality and packaging; 2 under inner setting: implementation climate and readiness for implementation; and 4 under characteristics of individuals: knowledge and beliefs about the intervention, self-efficacy, individual stage of change, and other personal attributes. In general, participants felt the app is extremely useful and effective, easy to use, and purposeful in achieving home safety assessment via reminders. The app replaces the need for participants to search for information on home safety and dangers, as the app itself was designed as a tool to assess for this specific purpose. Even at the nascent stage and despite its limitations, the app has prompted users to consider and make changes around their own home. However, future versions of the app should be expanded to make it more attractive to users as it lacks interactive feedback and additional features.

CONCLUSIONS

Parents/guardians are accepting the use of the ChildSafe app to prevent child injury at home. However, further expansion and improvements are needed to increase the acceptability of this app by parents/guardians.
Tecnologías de subjetivación del intraemprendedor: el caso de la consultoría
Authors: Candil Moreno Daniel
Published: September 2020

Este artículo reflexiona acerca de algunas de las tecnologías de subjetivación que operan actualmente dentro del mundo de la empresa en un contexto de profundas transformaciones del mundo del trabajo. Con este objetivo nos centraremos en el análisis de la gestión, por parte de las organizaciones, de algunos recursos de poder para normalizar la subjetividad y compromiso de los trabajadores según los principios constitutivos del intraemprendedor, nuevo ideal normativo que representa el deber ser del “buen trabajador” contemporáneo. De esta manera, y a través del estudio de caso de una consultora dedicada al servicio de los recursos humanos, se analizará la articulación de estas estrategias de disciplinamiento en torno a una serie de dispositivos que, fomentando una aparente libertad y reconocimiento de los empleados, termina por generar dinámicas de autosujeción y difumina el origen de las fuentes mismas del poder.
El Bienestar Ocupacional: delimitación conceptual y variables clave de su desarrollo
Authors: Luque Balbona David , González Begega Sergio
Published: September 2020

El artículo aborda dos aspectos clave para el estudio del bienestar ocupacional (BO): por un lado, su delimitación conceptual; y por otro, las principales variables explicativas de su desarrollo. En primer lugar, se explora el concepto de BO, indicando brevemente sus interacciones con otras fuentes de provisión de bienestar. Asimismo, se examinan de forma comparada cuatro elaboraciones conceptuales de BO, indicándose sus principales diferencias y sus solapamientos. En segundo lugar, se efectúa una síntesis de los principales resultados de la literatura internacional, con el doble objetivo de precisar y actualizar la situación comparada de España dentro del contexto europeo, así como de detectar las principales variables explicativas del desarrollo del BO. El artículo ofrece una contribución a la nueva agenda de investigación sobre bienestar que concibe la arquitectura de los sistemas de protección social post-industriales como el resultado dinámico de la combinación de diferentes fuentes de bienestar.
La literatura gerencial en tiempos de popularización del feminismo
Authors: Medina-Vicent Maria
Published: September 2020

En este trabajo tratamos de analizar los cambios discursivos en la literatura gerencial atendiendo a la popularización del feminismo en los últimos años. Así pues, el objetivo central de este trabajo es actualizar la muestra analizada en investigaciones previas incorporando dos obras: Women Who Work. Rewriting the Rules for Success (Ivanka Trump, 2017), y Feminist Fight Club. A Survival Manual for a Sexist Workplace (Jessica Bennett, 2017). Dichas obras muestran las contradicciones inherentes a la cooptación del feminismo por parte del neoliberalismo: la obra de Trump viene a reforzar la línea argumental neoliberal identificada en nuestro análisis previo; la obra de Bennett incorpora un componente más popular relacionado con la lógica del Girl Power abriendo diferentes interrogantes en nuestra investigación.
La reproducción fallida de las elites. Inestabilidad y transformaciones de las elites empresariales argentinas entre 1976 y 2015
Authors: Castellani Ana , Heredia Mariana
Published: September 2020

La literatura sobre las elites se preocupa por tres grandes cuestiones: la concentración de la riqueza o el poder, la cohesión de los dirigentes y la reproducción en el tiempo de sus integrantes. El objetivo de este trabajo es focalizarnos en la capacidad de reproducción de las elites empresariales argentinas para determinar si se produjo un proceso de renovación o de consolidación de las posiciones adquiridas en un contexto de particular inestabilidad económica. Para averiguarlo, analizamos las 50 primeras compañías y sus presidentes en el período 1976-2015. Precisamos las características fundamentales de este selecto núcleo, su tiempo de permanencia y las razones que llevaron a la pérdida o al acceso a estas posiciones. El análisis revela un proceso fallido de reproducción: apenas una minoría de empresas (26%) y dirigentes (4%) lograron perpetuarse a lo largo de estas cuatro décadas.
El vínculo entre las élites empresariales mexicanas y los expertos: Expandiendo las fronteras del mercado
Authors: Luna Matilde
Published: September 2020

Durante el siglo XX las élites empresariales mexicanas se distinguieron no solamente por la concentración de recursos económicos sino también por sus recursos organizativos, que funcionaron de hecho como canales de representación e intermediación de intereses del empresariado en su conjunto. Ya en plena era de la globalización, la entrada del siglo XXI se caracteriza por cambios significativos en la composición de las élites empresariales y por el surgimiento de influyentes organizaciones de nuevo tipo, que de manera expresa buscan incidir en las políticas públicas. La autoridad de estas experiencias asociativas se finca en el conocimiento experto, en una composición relativamente plural, pero no por ello menos elitista, y en una declarada autonomía de intereses particulares o de grupo. El propósito de este artículo es identificar los rasgos más sobresalientes de estas organizaciones que operan en los márgenes del mercado y que cruzan fronteras institucionales y territoriales incrementando su permeabilidad.
Las élites corporativas de México (2000-2015): dinámicas del capitalismo familiar
Authors: Chardavoine Julia
Published: September 2020

Basado en el estudio sociográfico de 575 miembros de consejos de administración y equipos directivos de las quince empresas listadas en el índice de la Bolsa Mexicana de Valores entre 2000 y 2015, este artículo cuestiona la transformación de la elite corporativa mexicana. A pesar de los procesos de liberalización, internacionalización y financiarización de la economía mexicana iniciados en los años 1980, las grandes corporaciones mexicanas siguen controladas por un conjunto de familias locales, tanto en términos de capital cómo de gestión. Los fenómenos observados en estudios sociológicos sobre la elite corporativa en países occidentales, tales como la ascensión de los managers en las posiciones de poder de las grandes corporaciones o el surgimiento de una élite corporativa transnacional, no ocurren en México, donde el capitalismo familiar ha logrado resistir.
Criptococosis y linfocitopenia T CD4 idiopática: Reporte de un caso
Authors: Arsanios Daniel Martin , Quintero-Muñoz Elías , Echeverry Diaz Tatiana , Muñoz Castaño José , Bohórquez Juan , Mesa Cristian , Estupiñan María Fernanda , Cabezas Daniel , Barragan Andres Felipe
Published: September 2020

La linfocitopenia T CD4 idiopática (LCI) es un síndrome clínico inusual que se caracteriza por un déficit de células T CD4+ circulantes en ausencia de infección por VIH u otra condición de inmunosupresión. Los pacientes con dicha enfermedad pueden presentarse asintomáticos o con infecciones oportunistas, las más frecuentes son por criptococo, micobacterias o virales como herpes zoster. Presentamos el caso de un hombre de 32 años, sin antecedentes, en quien se descartó infección por retrovirus, con recuento de linfocitos T CD4+ menor a 300 células/m3; se diagnosticó LCI posterior al diagnóstico de criptococomas cerebrales mediante hallazgos imagenológicos los cuales fueron congruentes con estudios microbiológicos.
A Critical Review of the Market Efficiency Concept
Authors: Mustafa Karwan Hussein , Ahmed Amanj Mohamed
Published: September 2020

The market efficiency hypothesis has attracted a notable number of economists to conduct investigations in this field. It could be considered as an effective method of driving investors towards the right direction while trading in the security market. A large number of researches believe that the market is efficient in some of its forms, while others take a different view. Drawing on previous theoretical and empirical studies investigating market efficiency and its three forms, this paper critically examines the concept of market efficiency through a critical review from different points of views. Moreover, it highlights a number of empirical tests and their results with regard to the three forms of market efficiency. It also focuses on the influence of market efficiency on the security prices. This paper concludes that the market seems to be more efficient in regards to its weak form instead of the strong and semi- strong forms, as a result, it is difficult to predict future security prices and obtain abnormal profits by only analyzing historical records.
Understanding bioplastic materials - current state and trends
Authors: Jeremic Sanja , Milovanovic Jelena , Mojicevic Marija , Skaro-Bogojevic Sanja , Nikodinovic-Runic Jasmina
Published: September 2020

Plastic pollution is now considered one of the largest environmental threats facing humans and animals globally. Development of bioplastic materials may offer part of the solution as bioplastics include both nondegradable and biodegradable materials with both being important for sustainability. Bioplastic materials are currently being designed to encompass minimal carbon footprint, high recycling value and complete biodegradability. This review examines recent developments and trends in the field of bioplastic materials. A range of the most utilized bioplastic materials is presented (poly(lactic acid) (PLA), polyhydroxyalkanoate (PHA), starch, cellulose, bio-based poly(butylene succinate) (bio-PBS) and bio-polyethylene (bio-PE)) including their production, application and degradation options.
Pengaruh Beban Kerja, Pengalaman, dan Skeptisme Profesional Terhadap Kemampuan Auditor Dalam Mendeteksi Kecurangan (Studi Empiris pada BPK RI Perwakilan Propinsi Sumatera Barat)
Authors: Eka Sari Yulia , Helmayunita Nayang
Published: September 2020

This research aims to find new evidence about the factors that effect the workload,experience and professional skepticism to fraud detection ability of auditor. Respondents in this research is the auditor’s who work at Badan Pemeriksa Keuangan (BPK) Padang Province Representation. Collecting data of thid study using a questionnaires submitted to 42 auditors. From questionnaires distributed 36 questionnaires (85,71%) were completed and can be processed. The data of this study using primary data directly through a questionnaires and analyzed using SPSS version 22 for windows. The data were analyzed to test the hypothesis using multiple linear regression analysis approach Then, the research using multiple regression method found that only workload having a negative on the fraud detection ability of auditor. While, experience, and professional skepticism having a positive effect on the fraud detection ability of auditor.Keywords: workload, experience, professional skepticism, and fraud detection ability of auditors
The Interaction Between Corporate Social Responsibility and Earnings Management Using Board Characteristics as Moderating Variable
Authors: Honesty Fiola Finomia
Published: September 2020

This study aims to examine the moderating effect of the characteristics of the board of commissioners on the relationship between corporate social responsibility disclosure and earnings management. The research sample consisted of 30 manufacturing companies listed on the Indonesia Stock Exchange during the period 2010-2015. The results obtained show a significant effect of corporate social responsibility on earnings management. In addition, the characteristics of the board of commissioners such as the board of commissioner's educational background and the frequency of board of commissioners meetings strengthen the relationship between corporate social responsibility and earnings management Keywords: corporate social responsibility, corporate governance mechanisms, earnings management, characteristics of the board of commissioners
Anteseden Transparansi Laporan Keuangan Pemerintah Daerah (Studi Empiris pada OPD Pemerintah Daerah Kota Magelang)
Authors: Wirawan Reky Candra , Yuliani Nur Layla , Purwantini Anissa Hakim
Published: September 2020

This study aims to empirically tested factors that affect transparency on financial statements namely presentation of financial statements, qualitative characteristics, accessibility, internal control, external pressure, management commitment, and human resources for finance in the local government organization of Magelang City. The population in this study were all employees in the local government organization of Magelang City with purposive sampling technique as many as 109 respondents. Data analysis techniques are multiple regression analysis and hypothesis testing. R2 test results show the amount of adjusted R2 value of 0.730 (73%). The results of the study found that qualitative characteristics, accessibility, and external pressures had a positive effect on the transparency of financial statements. While the presentation of financial statements, internal control, human resources, and management commitment does not affect the transparency of local government financial reports.Keywords: Transparency, financial reports, local government
PKM Pelatihan Analisis Fundamental dan Teknikal Sebagai Alat Analisis Pengambilan Keputusan Investasi di Pasar Modal Pada Guru MGMP Akuntansi dan Ekonomi SMA/SMK Kota Bukittinggi
Authors: Mulyani Erly , Fifrman Firman , Thabrani Gesit , Linda Muthia Roza
Published: September 2020

This community service aims to increase partners' understanding and knowledge of fundamental and technical analysis as an analysis tool for investment decision making in the capital market. This community service provide training, discussion, practice and monitoring to the partners. There was 28 participants followed the activity. After the training, the participants were able to conduct fundamental and technical analysis well, and made transaction in the BEI Jakarta. This can be seen from the activities of the participants who directly carry out buying and selling transactions using fundamental and technical analysis using the POST application of securities where. Keywords: Fundamental, technical, analysis, trading
Pengaruh Intellectual Capital, Perencanaan Pajak, Dan Pengungkapan Enterprise Risk Management Terhadap Nilai Perusahaan
Authors: Fadilah Riani , Afriyenti Mayar
Published: September 2020

The aim of this study was to analyze the influence of intellectual capital, tax planning, enterprise risk management discloure on firm value. The data used in this study are annual reports In manufacturing companies listed on the indonesia stock exchange (idx) in the period 2014-2018. The method of taking data samples using purposive sampling method based on certain criteria. Based on the retrieval method obtained A sample of 162 companies. Hypothesis testing in this study uses multiple linear regression analysis. The results show that structural capital, tax planning, and enterprise risk management discloure has no influence on firm value and human capital also customer capital have a positive influence on firm value. The results of this study contribute to the development of knowledge related to company value, especially the importance of human capital and customer capital. For practice, this research provides input to companies in order to maximize their human capital and customer capital. Keywords: Intellectual Capital; Tax Planning; Enterprise Risk Management Disclosure; Firm Value
Human Retina Based Identification System Using Gabor Filters and GDA Technique
Authors: Sultan Shahad , Faris Ghanim Mayada
Published: September 2020

A biometric authentication system provides an
automatic person authentication based on some characteristic
features possessed by the individual. Among all other biometrics,
human retina is a secure and reliable source of person
recognition as it is unique, universal, lies at the back of the eyeball and hence it is unforgeable. The process of authentication
mainly includes pre-processing, feature extraction and then
features matching and classification. Also authentication systems
are mainly appointed in verification and identification mode
according to the specific application. In this paper, preprocessing and image enhancement stages involve several steps to
highlight interesting features in retinal images. The feature
extraction stage is accomplished using a bank of Gabor filter with
number of orientations and scales. Generalized Discriminant
Analysis (GDA) technique has been used to reduce the size of
feature vectors and enhance the performance of proposed
algorithm. Finally, classification is accomplished using k-nearest
neighbor (KNN) classifier to determine the identity of the genuine
user or reject the forged one as the proposed method operates in
identification mode. The main contribution in this paper is using
Generalized Discriminant Analysis (GDA) technique to address
‘curse of dimensionality’ problem. GDA is a novel method used
in the area of retina recognition.
Green High Performance Simulation for AMB models of Aedes aegypti
Authors: Montes de Oca Erica Soledad , Suppi Remo , De Gisuti Laura Cristina , Naiouf Marcelo
Published: September 2020

The increase in temperature caused by the climate change has resulted in the rapid dissemination of infectious diseases. Given the alert for the current situation, the World Health Organization (WHO) has declared a state of health emergency, highlighting the severity of the situation in some countries. For this reason, coming up with knowledge and tools that can help control and eradicate the vectors propagating these diseases is of the utmost importance. High-performance modeling and simulation can be used to produce knowledge and strategies that allow predicting infections, guiding actions and/or training health/civil protection agents. The model developed as part of this research work is aimed at assisting the decision-making process for disease prevention and control, as well as evaluating the reproduction and predicting the evolution of the Aedes aegypti mosquito, which is the transmitting vector of the dengue, Zika and chikungunya diseases. Since a large number of simulation runs are required to achieve results with statistical variability, GPU has been used. This platform has enough computational power to reduce execution time while maintaining a lower energy consumption. Different scenarios and experiments are proposed to corroborate the benefits of the architecture proposed.
Desenvolvimento de um Software educativo para projeto da separação sólido-líquido em centrífugas tubulares
Authors: Silverio Beatriz Cristina , Donizete da Silva Lucas , Lima Giselle Marcelino , Dos Santos Kássia Graciele
Published: September 2020

A tecnologia está cada dia mais presente na vida moderna e tem sido importante aliada no ensino-aprendizagem dos cursos superiores de tecnología e ciencias exatas, principalmente nas engenharias. Muitas vezes, os discentes, julgam como difícil de asimilar conceitos abstratos, debido à grande quantidade de teoria e cálculos envolvidos dificultando a compreensão. A fim de reverter essa visão, o artigo tem como objetivo demonstrar a utilização da tecnologia no âmbito educacional e contribuir nas melhorias da aprendizagem dos conteúdos obrigatórios de um curso superior em engenharia química. Para tal, idealizou o “Projeto Centrífuga”, como ferramenta alternativa ao ensino de projeto de centrifugas tubulares, através de dados das condições operacionais e ampliação de escalas de projetos. Concluiu-se que a tecnologia é uma importante aliada na no proceso educacional incentivando os acadêmicos tornando-os parte da construção do conhecimento.
Assessment of Vietnam’s Mineral Resources Allocation from Economic and Policy Perspectives
Authors: Huong Vu Thanh
Published: September 2020

Vietnam is assessed to own a diverse and abundant mineral resources with over 5,000 mines and ore spots of 60 different minerals. The mining industry is therefore one of the key economic sectors and makes a great contribution to the socio-economic development of the country. The paper focuses on analyzing the current status of mineral resource allocation by economic sector, by period of time and the allocation of mineral revenue, and then assessing mineral resource allocation of Vietnam in the commerical and policy aspect. Based on these analysis, the paper proposes three groups of measures to support Vietnam allocate more effectively this resource including: identifying clearly and fully mineral resource allocation objectives, developing allocation policies based on market economy principles and constructing allocation policies equally, publicly and transparently.
María Rosa Oliver: visible ausente. Una revisión del canon intelectual latinoamericano
Authors: Gomez Pereira Vanessa
Published: September 2020

Este artículo examina el problema de la invisibilización del trabajo intelectual de la escritora argentina María Rosa Oliver (1898-1977) dentro del campo de los estudios literarios y culturales latinoamericanos. A partir de una investigación de archivo y del análisis de los discursos dominantes producidos en torno a sus escritos y figura, tanto entre sus contemporáneos como en la literatura actual, este texto rastrea las lógicas de heterodesignación vigentes en la concepción de lo intelectual, que han terminado desvalorizando un trabajo como el de Oliver. Apoyada en la crítica literaria feminista, planteo, no su inclusión en el canon, sino la necesidad de desmarcarse de los mecanismos vigentes de canonización para intentar nuevas lecturas sobre la literatura escrita por mujeres en el pasado.
ПІДХОДИ ДО ОЦІНЮВАННЯ РОЗРИВІВ ЕНЕРГОЕФЕКТИВНОСТІ В НАЦІОНАЛЬНІЙ ЕКОНОМІЦІ
Authors: Pavlyk Vladyslav Volodymyrovych
Published: September 2020

Актуальність теми дослідження. Низький рівень ефективності наявних зелених технологій призводить
до недоотримання обсягу енергії від наявних енергетичних потужностей країни, що у свою чергу є
передумовою виникнення розривів енергоефективності національної економіки (РЕНЕ). Постановка проблеми. Встановлено, що єдиного підходу до оцінювання розривів енергоефективності світовою науковою спільнотою не прийнято. Аналіз останніх досліджень і публікацій. Автором систематизовано передумови виникнення РЕНЕ. На основі результатів дослідження визначено, що традиційно під розривами енергоефективності розуміють явище, що виникає у наслідок не ефективного використання наявних та потенційно можливих природних ресурсів для виробництва та споживання енергії. Виділення недосліджених частин загальної проблеми. Визначено, що наявні підходи до оцінювання РЕНЕ не враховують еколого-економічних детермінант, що впливають на величину РЕ. Постановка завдання. Метою статті є дослідження науково-методичних підходів до оцінювання РЕНЕ та урахування еколого-економічних детермінант. Виклад основного матеріалу. Результати аналізу свідчать про зростаючий тренд наукових праць присвячених дослідженню питань РЕНЕ. Встановлено, що традиційно РЕНЕ визначаються як різниця між енергетичним потенціалом та фактичним енергетичним балансом країни. Автором систематизовано основні детермінанти, що впливають на величину РЕНЕ, а саме: соціальні параметри, обсяг зелених інвестиції, показники
екологічної ефективності, показники ефективності державного управління та макроекономічної стабільність. Висновки. На основі результатів дослідження підходів до оцінювання РЕНЕ автором запропоновано використовувати транслогову функцію та метод фронтироного стохастичного аналізу, що на відміну від існуючих, враховує соціальні, екологічні та макроекономічні детермінанти. У подальших досліджень доцільним є практична апробація запропонованого науково-методичного підходу до оцінювання РЕНЕ.
Elite da Liberdade: a contribution to the history of black clubs in Brazil
Authors: Domingues Petrônio José , Pereira Ana Cláudia
Published: September 2020

This article investigates the trajectory of the Grêmio Dramático, Recreativo e Literário Elite da Liberdade (the Liberdade Elite Guild of Drama, Recreation, and Literature), a black club active in São Paulo, Brazil, from 1919 to 1927. The aim is to reconstruct aspects of the club’s history in light of its educational discourse on civility, which was used as a strategy to promote modern virtues in the black milieu. By appropriating the precepts of civility, Elite da Liberdade helped construct a positive black identity, enabled the creation of bonds of solidarity among its members, and made itself a place of resistance and struggle for social inclusion, recognition, and citizens’ rights.
Panorama teórico da Fonologia no Brasil: uma homenagem a Leda Bisol
Authors: Ulrich Camila Witt , Chaves Raquel Gomes
Published: September 2020

A mesa redonda Fonologia, conduzida por José Magalhães (UFU) e organizada em homenagem à professora Leda Bisol, apresenta um panorama dos estudos em Fonologia a partir de diferentes perspectivas teóricas. Carmen Matzenauer (UFPEL) aborda a Fonologia Gerativa Clássica, pautada nos conceitos de níveis de representação, regras e traços, e nos desdobramentos do modelo teórico. Luciani Tenani (UNESP – São José do Rio Preto) introduz os pressupostos da Fonologia Prosódica – teoria que organiza o contínuo da fala em constituintes prosódicos hierarquizados. Christina Abreu Gomes (UFRJ) trata da Fonologia baseada no Uso e no Modelo de Exemplares, que prevê abstrações emergentes do uso e da experiência linguística dos falantes.
Insurgency in the State of North-East
Authors: Nurjahan Begum
Published: September 2020

The North East is one of the most ethnically and linguistically diverse regions in India. The numerous fairs and festivals celebrated by these communities and their friendly nature are irresistible attractions for the visitors. However, the maximum concentration of the Tibeto-Burman speakers is found in the North East: in comparison to any part of the Country.
The problem of insurgency in the Northeast has reached all-time high. Almost all Northeast is under Armed forces under special powers Act. Their presence is due to unrest or ethnic uprising, which is due to unemployment, intolerance, frustration and alienation among the people in general, and youths in particular.
There are many reasons behind the problem of insurgency/ terrorism. Some of which is lack of political will and determination to make the people of this region to have feelings of oneness and sense of belongingness to the country. Due to not having any industrial growth, the States have lack of employment opportunity, lack of proper facilities, planning etc. The other reason is the geographical isolation/location of the states of Northeast from rest of the country. Due to this, there is lack of communication, poor transportation, no opportunity for sending agriculture and other produces outside the state etc. All these adversely affect the economic development.
A number of studies showed that deprivation, unemployment, racial discrimination, ethnicity, minority status, and so on show altogether different impact on identity development. Ethnic minorities who form sub-segment in the society have low self-esteem and find themselves in a complex situation (Taifel, 1978, and Morris).
Recent advances in cerebral palsy
Authors: Gowda Vykuntaraju K.
Published: September 2020

The words unpreventable, incurable, and untreatable are still synonymous with cerebral palsy (CP). However, research and evidence coming from the fields of neuroplasticity, neuroregeneration, and neuroprotection provide considerable cause for optimism for children with CP. There are now at least 64 different interventions for CP seeking 131 outcomes. A search of the Cochrane Library, PubMed, and Google Scholar was made using the keywords: CP, static encephalopathy, birth asphyxia, perinatal insult, hypoxic-ischemic encephalopathy, and neonatal encephalopathy. We found evidence to suggest that following interventions: Anticonvulsant drugs, ankle casting, botulinum toxin for focal spasticity, bisphosphonates, diazepam, hip surveillance, and dorsal rhizotomy are effective. The following interventions improve function: Bimanual training, constraint-induced movement therapy, context focused therapy, goal-directed/functional training, home programs, and occupational therapy. These interventions are effective if started early in life. Therapies such as hyperbaric oxygen, hip bracing, and neurodevelopmental therapy when child contractures are already developed are ineffective. In the last decade, the evidence on CP has rapidly expanded, providing clinicians and families with the possibility of newer, safer, and more effective interventions. In this update, the author reviews the current evidence of the management of CP and provides a comprehensive evaluation and multidisciplinary management.
Tuning Nitric Oxide Adsorption in Cobalt–Triazolate Frameworks
Authors: Oktawiec Julia , Jiang Henry Z. H. , Turkiewicz Ari , Long Jeffrey R.
Published: September 2020

Nitric oxide (NO) is an important signaling molecule in biological systems, and as such the ability of certain porous materials to reversibly adsorb NO is of interest for medical applications. Metal–organic frameworks have been explored for their ability to reversibly bind NO at coordinatively-unsaturated metal sites, however the influence of metal coordination environment on NO adsorption has yet to be studied in detail. Here, we examine NO adsorption in the frameworks Co2Cl2(bbta) and Co2(OH)2(bbta) (H2bbta = 1H,5H-benzo(1,2-d:4,5-d′)bistriazole) via gas adsorption, infrared spectroscopy, powder X-ray diffaction, and magnetometry measurements. While NO adsorbs reversibly in Co2Cl2(bbta) without electron-transfer, adsorption of low pressures of NO in Co2(OH)2(bbta) is accompanied by charge transfer from the cobalt(II) centers to form a cobalt(III)–NO− adduct, as supported by diffraction and infrared spectroscopy data. At higher pressures of NO, characterization data support additional uptake of the gas and disproportionation of the bound NO to form a cobalt(III)–nitro (NO2−) species and N2O gas, a transformation that appears to be facilitated in part by stabilizing hydrogen bonding interactions between the bound NO2− and framework hydroxo groups. This reactivity represents a rare example of reductive NO-binding in a metal–organic framework and demonstrates that NO binding can be tuned by changing the coordination environment of the framework metal centers.
Hydrogen-Bonded Water Clusters Confined in Nanocavity as Bright Color Emitters
Authors: Yang Taiqun , Peng Bo , Zhou Jiafeng , Shan Bingqian , Zhang Kun
Published: September 2020

Molecules confined in the nanocavity and nanointerface exhibits rich of unique physicochemical properties, e.g., green fluorescent protein (GFP). However, the physical origin of their photoluminescence (PL) emission remains elusive. To mimic the microenvironment of GFP protein scaffold at the molecule level, two groups of nanocavities were created by molecule self-assembling using organic chromophores and by organic functionalization of mesoporous silica, respectively. We provide strong evidence that, the hydrogen-bonded water clusters (WCs) confined in these nanocavities are true color emitters with a universal formula of {X+ ∙(OH- ∙H2O)(H2O)n-1}, in which X is hydrated protons (H3O+ ) or protonated amino (NH3 + ) groups. Further controlled experiments and combined characterizations by time-resolved steady-state and ultra-fast transient optical spectroscopy showed that, the PL efficiency of WCs strongly depends on the type and stability of WCs structure, which is dominated by H-Bonds. Differing from the local excitation of organic chromophores, the excited state of WCs has the characteristic of the topological excitations due to the many-body nuclear quantum effect (MBNQE) in confined nanocavity.
Structure and Formation of Soot Particles from Tribofilm Decomposition Under Real Engine Conditions
Authors: Thersleff Thomas , Jenei Istvan Zoltan , Budnyk Serhiy , Dörr Nicole , Slabon Adam
Published: September 2020

Lubrication of an internal combustion engine is critical for unwanted energy and material losses. Zinc dialkyldithiophosphate (ZDDP) is a commonly used anti-wear additive that forms by in situ decomposition a protecting interface between sliding surfaces. The interface consists of the tribofilm on both surfaces and oil in the contact. Soot particles from a petrol engine and gas engine were analyzed using X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) techniques: electron energy loss spectroscopy (EELS) and energy dispersive X-ray spectroscopy (EDS). These techniques revealed that the end-products in soot contain 3-5 nm ZnO-based particles with additions of phosphorus and sulfur, originating from the ZDDP anti-wear additive. Our results unravel the tribofilm decomposition under real field conditions and hint toward potentially unidentified hazards with respect to ZDDP-containing lubricants.
An in Silico Scientific Basis for LL-37 as a Therapeutic and Vitamin D as Preventive for Covid-19.
Authors: Lokhande Kiran Bharat , Banerjee Tanushree , Swamy K. Venkateswara , Deshpande Manisha
Published: September 2020

Even as clinical trials are underway for vaccines and therapeutics for Covid-19, establishment of modalities with a strong and complete foundation is still awaited and until then, the uncertainty remains associated. Thus, there is a requirement to research as many new and different types of approaches as possible to tackle the pandemic. In this report, in silico scientific findings are presented, which are indicative of the putative potential for the use of the LL-37 human anti-microbial peptide as a therapeutic or possibly even as a prophylactic against SARS-CoV-2. This indication is mainly based on the high structural similarity of LL-37 to the N-terminal helix of the receptor-binding domain of SARS-CoV-2, and the positive prediction of binding of LL-37 to the receptor-binding domain of SARS-CoV-2. Also, as Vitamin D is known to upregulate the expression of LL-37, the vitamin is a candidate preventive molecule. This report also provides the possible basis for why there is an inverse correlation between Vitamin D levels in the body and the severity of or susceptibility to Covid-19, as described in a large body of published literature. The path for development of LL-37 as a therapeutic could be of lesser duration, as LL-37 is native to the human body. With the scientific link put forth in this work, Vitamin D could be used at an effective, medically prescribed dose as a preventive measure. As Vitamin D is insoluble in water, it should be taken only in consultation with a medical practitioner to prevent adverse effects of its accumulation in the body. The information in this report would be valuable in bolstering the worldwide efforts to control the pandemic as early as possible.
A Concise Route to MK-4482 (EIDD-2801) from Cytidine: Part 2
Authors: Gopalsamuthiram Vijayagopal , Williams Corshai , Noble Jeffrey , Jamison Timothy F. , Gupton B. Frank , Snead David
Published: September 2020

A new route to MK-4482 (1) was developed. The route replaces uridine with the more available and less expensive cytidine. Low cost, simple reagents are used for the chemical transformations and the yield is improved from 17% to 44%. A step is removed from the longest linear sequence, and these advancements are expected to expand access to MK-4482 should it become a viable drug substance.
Decarboxylative Amination: Diazirines as Single and Double Electrophilic Nitrogen Transfer Reagents
Authors: Chandrachud Preeti P. , Wojtas Lukasz , Lopchuk Justin
Published: September 2020

The ubiquity of nitrogen-containing small molecules in medicine necessitates the continued search for improved methods for C–N bond formation. Electrophilic amination often requires a disparate toolkit of reagents whose selection depends on the specific structure and functionality of the substrate to be aminated. Further, many of these reagents are challenging to handle, engage in undesired side reactions, and function only within a narrow scope. Here we report the use of diazirines as practical reagents for the decarboxylative amination of simple and complex redox-active esters. The diaziridines thus produced are readily diversifiable to amines, hydrazines, and nitrogen-containing heterocycles in one step. The reaction has also been applied in fluorous phase synthesis with a perfluorinated diazirine.