bluuebunny/crossref_metadata_2025 huggingface dataset:
Camiones de escalera: cultura popular rodante
Authors: Zapata Cárdenas María Isabel
Published: May 2021

Vehículos tradicionales que ruedan por la geografía colombiana llevando historias, relatos y costumbres en medio del trasegar cotidiano; el relieve inconquistable parece dominar a sus conductores. Pericia, conocimiento y práctica. Los conductores se confiesan en las manos de estos camiones de escalera que entre el sonido de su claxon y la carga de la cosecha y sus pobladores transportan a diario la cotidianidad de la ruralidad más apartada, que cumple la cita matutina en sus mercados, plazas y parques. Estos carros son la muestra de una práctica social y cultural alrededor del diseño y el decorado de unos automotores que se convierten en obras rodantes y símbolos del campo nacional. Detrás de su decorado, de sus nombres de pila y de sus colores, hay familias y generaciones dedicadas a mantener una actividad que va más allá del sector transportista y que reconocen como vocación heredada. Propietarios, conductores, decoradores, alistadores y carroceros: todos al unísono perfeccionan un trabajo artesanal. No hay escuelas ni ensambladoras industriales: solo la labor de generaciones que entregan el legado al interesado. Y algunos ya creen que la extinción del sistema de transporte y sus protagonistas es una amenaza latente.
Persepsi Kebahagiaan Pada Masyarakat Banjar di Desa Gandaraya Kecamatan Anjir Pasar Kabupaten Barito Kuala
Authors: Rahmawati Rahmawati , Arni Arni , Imadduddin Imadduddin
Published: May 2021

Happiness is a feeling that can be experienced by everyone, but the way to get happiness varies depending on how the person perceives it. The purpose of this research is to find out how the level and perception of happiness in the Banjar community. This type of research uses a mixed method with 55 people for a quantitative approach and 12 people for a qualitative approach taken from a sample of 55 people who have high levels of happiness. Data collection techniques used were, questionnaire, observation and interview.  The results of this study can be concluded that the level of happiness of adolescents with high happiness categories is 35% and moderate 65%, adults are high happiness categories 55% and moderate 45%, and elderly happiness categories are high 46.7% and moderate 53.3%. Perceptions of happiness in adolescents are positive emotions, gratitude, family, achievement, peers, and social life. Adults are positive emotions, be patient and grateful, family, marriage, physical health, money, work, social life, and religiosity. While the elderly are positive emotions, gratitude, age, money, family, physical health, religion, social life.
Faktor Psikologis Yang Mempengaruhi Proses Terapi Anak Dengan Autisme
Authors: Rizky Elvina , Noor Irfan , Fadhila Mahdia
Published: May 2021

Autism is a developmental delay in children which is characterized by disorders in social aspects, communication. behavior and language. Treatment that will be given to children with autism which is therapy, like speech therapy, behavior, occupation and sensory integration. Based on preliminary studies and earlier research, found things that can affect both those that support and inhibit the implement of therapy. Therefore This study aims to decide what psychological factors affect the process therapy at the Center for Disability and Inclusion Education in South Kalimantan Province. This study uses a type of field research with a qualitative descriptive approach. The subjects in this study amounted to 6 therapists who have worked for 5 years at PLDPI. The results showed that therapeutic services at PLDPI, there are factors that influence the process and success of therapy. Internal factors that support the therapeutic process in PLDPI is the wishes of the child, age of child, level of autism disorders, IQ child, child's mood, affection therapist, therapist's patience and therapist's sincerity, ritual therapist (praying, prayer dhuha, reading istigfar and basmalah), intention of the therapist, understanding of children, enthusiasm and attendance consistency therapist, professional attitude. While external factors that support is self-awareness of people old in adopting a diet, parental support, the role of parents at home, therapist support, number adequate therapist, therapist collaboration with parents, adequate facilities and infrastructure and a therapeutic schedule that meets the target and therapy program that suits the child's needs. The internal factors that inhibit the child's condition such as hyperactivity, hypoactive, tantrum, sick, minimal eye contact, speech difficulties and disobedience and therapists who cannot controlling emotions. While the external factor is parents' want.
Motif Berprestasi dengan Komitmen Organisasi pada Guru Honorer di Sekolah Swasta
Authors: Norhasanah Norhasanah , Mulyani Mulyani , Komalasari Shanty
Published: May 2021

The purpose of this study was to determine the relationship of achievement motives with organizational commitment to honorary teachers in private schools. The population in this study was honorary teachers of private schools, especially in the 4 schools, which amounted to 12 non-permanent employees. Sampling uses a quota sampling because the number of subjects is less than 30 subjects. The data in this study are quantitative data, data collection in this study is to use the questionnaire method in the form of scales, interviews, and documentation. The research data were analyzed using linear regression analysis. The results showed that there was no relationship between achievement motives and organizational commitment. The results of the calculation of correlation using the Spearman rank correlation coefficient test can be seen the value of Sig. (2-tailed) is 0,112. Meanwhile, the correlation coefficient value of 0,482 means that the strength of the correlation coefficient between the achievement motive variable and organizational commitment is sufficient. The percentage of effective contribution of achievement motivation influencing organizational commitment is only 1,82% and 98,18% is influenced by variables or other factors not covered in this study.
Gambaran Faktor Psikologis yang Mempengaruhi Proses Terapi Anak dengan Autism Spectrum Disorder
Authors: Rizky Elvina , Noor Irfan , Fadhila Mahdia
Published: May 2021

Autism spectrum disorder is a developmental delay in children which is characterized by disorders in social aspects, communication, behavior, and language. Treatment that will be given to children with autism is therapy, like speech therapy, behavior, occupation, and sensory integration. Based on preliminary studies and earlier research, I found things that can affect both those that support and inhibit the implementation of therapy. Therefore This study aims to decide what psychological factors affect the process therapy at the Center for Disability and Inclusion Education in South Kalimantan Province. This study uses a type of field research with a qualitative descriptive approach. The subjects in this study amounted to 6 therapists who have worked for 5 years at PLDPI. The results showed that therapeutic services at PLDPI, there are factors that influence the process and success of therapy. Internal factors that support the therapeutic process in PLDPI is the wishes of the child, age of the child, level of autism disorders, IQ child, child's mood, affection therapist, therapist's patience and therapist's sincerity, ritual therapist (praying, prayer dhuha, reading istighfar and basmalah), the intention of the therapist, understanding of children, enthusiasm and attendance consistency therapist, professional attitude. While external factors that support is self-awareness of people old in adopting a diet, parental support, the role of parents at home, therapist support, number adequate therapist, therapist collaboration with parents, adequate facilities and infrastructure and a therapeutic schedule that meets the target and therapy program that suits the child's needs. The internal factors that inhibit the child's condition such as hyperactivity, hypoactive, tantrum, sick, minimal eye contact, speech difficulties and disobedience and therapists who cannot be controlling emotions. While the external factor is the parents' wants.
Statistične metode z računalnikom za pedagoge
Authors: Bratina Tomaž
Published: May 2021

Publikacija je namenjena predstavitvi lastnosti, pomena in uporabe statističnih metod v pedagoškem raziskovanju. Vsaka statistična metoda je predstavljena s krajšo teoretično razlago in videoposnetkom, ki vsebuje razlago postopkov potrebnih za izvedbo statistične obdelave podatkov z izbrano statistično metodo v programu SPSS ter interpretacijo izidov obdelave. Izid obelave je uporabniku na voljo kot datoteka izvornega izpisa iz programa SPSS in kot univerzalna besedilna datoteka. Publikacija omogoča shranjevanje datotek izpisov in datotek podatkov, ki so bili uporabljeni v razlagah in s tem kasnejšo samostojno izvedbo istih statističnih obdelav.
»Preventiva pred kurativo« – samozaščitno vedenje mladih pred kriminaliteto
Authors: Erčulj Vanja
Published: May 2021

Fear of crime influences different aspects of life of an individual and community that is why it has been a frequent research topic for the last 50 years. Researchers focus primarily on factors related to emotional aspect of fear, that is worry of citizens that they become a victim of crime. To lower extent they focus on behavioural aspect, that is preventive measures people take to protect themselves from crime. This paper addresses this research topic. Qualitative and quantitative research was performed on young adults as they have higher chance of becoming a victim of crime. Main study objective was to examine preventive measures the young adults take to protect themselves from crime and the role of demographic, social and other factors in their self-protective behaviour.
Analiza ukrepov zajezitve SARS-COV-2 virusa v prvem valu pandemije v izbranih državah
Authors: Gabrovec Branko
Published: May 2021

On 31.12.2019 China has announced that they have perceived an increasing number of pneumonia cases in Wuhan city. They have identified a new virus that they named SARSCoV-2. Disease that is caused by Covid-19 virus has been declared as pandemic on 11. march 2020 by the World Health Organisation. Until that day Covid-19 has spread to 114 countries with 118 000 cases and 4291 casualties. Countries have differently reacted to the pandemic outbreak accepted measures. In this paper we are analysing acceptance and enforcing of measures against pandemic outbreak SARS-CoV2 in the first outbreak in the selected countries: Great Britain, Serbia, Italy, China, Spain and USA.
Management tveganj pri investiranju: primer investicije v kripto valute
Authors: Arh Patrik , Lambić Ana , Černivec Žan , Marič Miha
Published: May 2021

We focused on investing and the risks, that accompany investors, through an overview of the basics of risk management in the context of investing, and then focused on the psychology of risk in investing. We highlighted and explained the common forms of risks that are present in various investments in financial instruments. With a critical analysis of the field, we present our examples and experiences with investing. Through the framework of the theoretical review of the literature, we analyse the risks we have encountered and the ways or strategies by which we have either eliminated these risks or reduced the probability of their occurrence. We also paid attention to risks, according to our perceptions over the period, from the first investment in cryptocurrencies to investing in shares and index funds.
European Economic Integration: Assessing Benefits from State Size Perspective
Authors: Gril Domen , Pevcin Primož
Published: May 2021

This empirical paper focuses on the analysis of economic benefits of European integration processes. A gap exists on the research that addresses the specific benefits of states involved in the economic integration processes. Thus, paper focuses on the analysis of benefits Slovenia has from European economic integration, and benchmark analysis is performed, taking Poland as example. This context serves for the comparison of effects and benefits of economic integration concerning smaller and larger states. Namely, there is an assumption that economic integration should have different state-specific effects, where state size is one of the attributes that significantly channels these effects. The results show that Slovenia benefited much more entering the single market in comparison to Poland. This suggests that single market might serve as an economic shelter for smaller states, and thus generates relatively larger benefits for them in comparison to larger states.
Evaluation of On-Line Courses Developed at the Faculty of Business Studies and Law and Faculty of Information Technology
Authors: Burić Mutavči Bojana , Dumanjić Jelena , Bajić Marija
Published: May 2021

Systematic evaluation of computer-based education (CBE) in all its various forms, including integrated learning systems, interactive multimedia, interactive learning environments and microworlds, often lags behind current development. Th erefore, an evaluation of on-line courses developed at the Faculty of Business Studies and Law and at the Faculty of Information Tehnology has been conducted. The sorses which were intended as a supplement to lectures and seminars were developed as a project using Citrix platform. The evaluation criteria used were based on the experience of the staff at the Instructional Media and Design department at Grant MacEwan College, Edmonton, Alberta, Canada and their eleven referential points. Considering the fact shat the courses evaluated are still in their trial period it was not suprising when the outcome showed substantial space for improvements.
Entrepreneurship in a New Reality: GEM Slovenia 2020, Executive Summary
Authors: Rebernik Miroslav , Širec Karin
Published: May 2021

Entrepreneurship is the strongest driver of economic growth and development and has a very large impact on overall social development. The Global Entrepreneurship Monitor (GEM) has a history of 22 years of entrepreneurship research, with a special focus on the earliest stages, when business opportunities are perceived and individuals decide whether to engage in entrepreneurship. Their direct living environment, especially the prevailing cultural values, the company's tendency to entrepreneurship and the orderliness of the business environment, have a great influence on the involvement of individuals in entrepreneurial activities. Accordingly, the conceptual framework of GEM is set, which enables the treatment of individuals and their attitude towards entrepreneurship, perception of entrepreneurship and involvement in the establishment and / or ownership and management of a company. With its help, we can therefore gain a deeper insight into national entrepreneurship and its characteristics and a more complete picture than can be provided by various statistical sources based solely on data obtained from existing companies.
Evaluation of the performance of Czech agriculture
Authors: Kašparová Kateøina , Svoboda Roman , Severová Lucie , Hinke Jana
Published: May 2021

Agriculture in the Czech Republic is one of major sectors of the economy, as it provides a substantial share of the basic food requirements of the population. An important part of agricultural companies’ production consists of livestock, especially because of the effective use of crop production as a source of all kinds of animal feed. It is also proven that livestock production plays a significant role in the creation and cultivation of the landscape. Czech agriculture has shown a profit since joining the EU thanks to a significant increase in subsidies. The aim of this paper is to show the impacts of the globalization of the economy and climate change on the economic performance of agricultural companies in the Czech Republic. Serious consequences of global climate change are already evident, and their intensity will grow with the ongoing warming of the planet.
Vocações, perspectivas e movimentos religiosos
Authors: Tadvald Marcelo
Published: May 2021

O periódico Ciências Sociais e Religião/ Ciencias Sociales y Religión, neste número, reúne trabalhos que examinam o tema das vocações e dos movimentos religiosos em diferentes aspectos, a partir de lógicas múltiplas e transdisciplinares, desde o universo da política, no cotidiano social ou no campo institucional, na mídia, na atuação pastoral e missionária, na musicalidade, na ciência ou na etapa derradeira da vida. Neste sentido, este conjunto de trabalhos pode avaliar a questão das vocações religiosas diferentemente contextualizadas não somente nos universos evocados, mas tendo em vista movimentos e realidades em que o religioso se manifesta de forma única e exclusiva.
Cristina Teresa Carballo y Fabián Claudio Flores (Comps.) Geografías de lo sagrado en la contemporaneidad. Quilmes: Editorial de la Universidad Nacional de Quilmes, 2019, 699 pp.
Authors: Giop Marcos
Published: May 2021

La obra “Geografías de lo sagrado en la contemporaneidad” se compone de un gran número de trabajos de investigación llevados a cabo por diferentes trabajadores de la agenda científica, sin embargo, sería una equivocación pensarla como una simple sumatoria de autores. El libro es el resultado de años de trabajo continuo articulado por un plantel de científicos de las ciencias sociales, principalmente geógrafos, pero, además, sumando el aporte de sociólogos, historiadores, antropólogos, intentando, de esta manera, transitar por los complejos, pero efectivos, senderos de la interdisciplinaridad.
Prevalence and Characteristics of Insomnia Problems Among Adults in Central Istria
Authors: Zavidić Tina , Bralić Lang Valerija
Published: May 2021

Aim: We sought to examine the frequency and characteristics of insomnia among adults in central Istria, as well as to analyse sociodemographic characteristics and explore whether there is an association between symptoms of insomnia and sociodemographic parameters. Methods: This research included 685 participants that visited family medicine offices (FMOs) in Central Istria from September till December 2016. Mean age of the sample was 52.73 ± 17.93 years. Participants were randomly selected and interviewed and all gave their informed consent. Participants with sleep disturbances and insomnia lasting one year prior to study enrolment were assessed using the questionnaire designed for the study; along with gathering of sociodemographic data. Results: More than half of the participants had insomnia, 30% of them each night or several times a week, mostly older participants and women. Regardless of the frequency of insomnia symptoms, all participants reported great impairment in all areas of daytime functioning. The most frequent incidence of insomnia was associated with more frequent sleep apnoea and less frequent bruxism. Frequent night awakenings and restless legs syndrome were not related to a greater incidence of insomnia. Conclusion: Insomnia is a common problem among patients treated in primary care. Family physicians are therefore in an ideal position to identify, evaluate and treat insomnia. The high prevalence of insomnia highlights the need for a more adequate recognition and treatment of this psychiatric illness.
Psychological Impact of the Corona Virus Lockdown on the General Population: A Cross Sectional Online Survey
Authors: Gaur Vikas , Jain Akhilesh , Purohit Gaurav , Gaur Kiran
Published: May 2021

Purpose: To assess the psychological impact of COVID-19 infection lockdown on the general population. Methods: From 28th April to 4th May 2020, an online survey was conducted using snowballing sampling and invitation through online social media to participate. Socio-demographic and clinical variables were collected. Psychological impact was assessed with the help of self designed questionnaire adapted from DSM-5 Self-Rated Level 1 CCSM-Adult scale. Results: In total, there were 568 responses from different cities / villages of the country. Out of these eight responses were excluded from the study because of lack of consent and final sample size analyzed was 560 (358 male, 202 female). Half of the participants were under 35 years of age, 63.9% were male, 49% have done post graduation and 59.1% were living in nuclear family. Analysis of response revealed presence of a high prevalence of psychiatric symptoms ranging from 5.5 % to 49.3% in the participants. Anxiety symptoms (49.3%), manic symptoms (37.3%) depressive symptoms (36.1%), anger issues (28.6%), somatic symptoms (26.3%) and sleep problems (24.5%) were the most common domains of psychiatric symptomatology reported by participants. Conclusion: Our study provides early evidence of a significant psychological impact of COVID-19 infection and lockdown on common people living in the community indicating a need for quick, comprehensive and longitudinal assessment of mental health needs of the population for early diagnosis and prevention of psychiatric disorders.
New Perspectives in Attention Deficit Hyperactivity Disorder: Possible Link to Oxytocin
Authors: Çöpür Mazlum , Çöpür Sidar
Published: May 2021

Letter to Editor
Review of “The Gambler” and F.M. Dostoevsky in the light of addiction inclination
Authors: Matić Jasminka
Published: May 2021

Dostoevsky’s spirit is broken by a difficult childhood, years of imprisonment and forced military service in the difficult conditions of remote Russia, and the shackles of married life with the “sick, hysterical widow ”. Wandering through dreamy Europe made him aware of the attachment to the Russian homeland and revealed love and allusion of peace; he falls in love with Ana by dictating the text of the “Gambler ”, which will provide them with bread and shelter in the days of losing the gambling luck and questionable existence. In his wandering through Europe as the “land of holy wonders”, Dostoevsky informs us through the confessions of the gambler Alexei about the temptations of the “world” addicted to the gambling table. The significance of divisive passions is questioned: those towards women, love and even more, gambling, destructive, demonic. In 27 days while he was presenting Ana with the thoughts of the main character of the “Gambler ”, and she was recording them in a transcript, the writer was going through his own agony. The novel will see the light of day, but unlike Alexei, a character waiting for a new tomorrow to decide on ending a life driven by an unhealthy addictive habit, Dostoevsky, after the novel ends, experiences catharsis and sails into economic security by taking royalties for this and subsequent novels. As when after a stormy night at sea, a sunny morning dawns, a hint of love, happiness and the desired family peace is prayed to the author. Ana will focus the writer, a gambler, on family life and caring for children, and abduct him from addiction by sailing with him to the next “storm”. The basic theme of the novel – the obsession with gambling – is the experience of Dostoevsky, a writer with “a heart in which God and Satan fight, and the pledge is human life.” In the days when in the hustle and bustle of modern life, COVID-19, complete human alienation and escalation of violence we turn to the spiritual, looking for a way out in the metaphysical, surreal, healing and nurturing, andrational and explainable does not offer a final answer, someone seeks a way out of addiction and someone in a classic, something familiar and valuable. Or in metaphysics that goes beyond the physical and the knowable, in an attempt to reach the higher, the spiritual. The return to the great connoisseur of the human psyche, Dostoevsky, in a return to the interest in man, the inspiration of the human and the humane, but also the space behind knowable and the “metaphysical drama”. The idea of the French writer Albarez that for Dostoevsky, “in contrast to most other novelists, man is primarily not a biological, social, economic, psychological, but a metaphysical being”, becomes understandable.
Vascular Metabolism as Driver of Atherosclerosis: Linking Endothelial Metabolism to Inflammation
Authors: Dzobo Kim E. , Hanford Katie M. L. , Kroon Jeffrey
Published: May 2021

The endothelium is a crucial regulator of vascular homeostasis by controlling barrier integrity as well acting as an important signal transducer, thereby illustrating that endothelial cells are not inert cells. In the context of atherosclerosis, this barrier function is impaired and endothelial cells become activated, resulting in the upregulation of adhesion molecules, secretion of cytokines and chemokines and internalization of integrins. Finally, this leads to increased vessel permeability, thereby facilitating leukocyte extravasation as well as fostering a pro-inflammatory environment. Additionally, activated endothelial cells can form migrating tip cells and proliferative stalk cells, resulting in the formation of new blood vessels. Emerging evidence has accumulated indicating that cellular metabolism is crucial in fueling these pro-atherosclerotic processes, including neovascularization and inflammation, thereby contributing to plaque progression and altering plaque stability. Therefore, further research is necessary to unravel the complex mechanisms underlying endothelial cell metabolic changes, and exploit this knowledge for finding and developing potential future therapeutic strategies. In this review we discuss the metabolic alterations endothelial cells undergo in the context of inflammation and atherosclerosis and how this relates to changes in endothelial functioning. Finally, we will describe several metabolic targets that are currently being used for therapeutic interventions.
Machinability of Nickel-Based Superalloys Using Ceramic Tools
Authors: Seleznev Anton , Pinargote Nestor Washington Solis , Smirnov Anton
Published: May 2021

Nickel-based superalloys are attractive to many industrial sectors (automotive, military, energy, aerospace etc.). However, their physical properties make them difficult to machining using traditional tools. Therefore, the new materials for the machining of Ni-based alloys are required. Ceramic-based composites could act as a tool to replace the current materials. The incentives for this paper are to provide an overview of existing ceramic composites and draw some conclusions that will help in solving the problem of choosing materials for processing of Ni-based superalloys. Despite the diversity of ceramic composites in this work the focus was on the SiAlON ceramic.
CDC2 Is an Important Driver of Vascular Smooth Muscle Cell Proliferation via FOXM1 and PLK1 in Pulmonary Arterial Hypertension
Authors: Pal-Ghosh Ruma , Xue Danfeng , Warburton Rod , Hill Nicholas , Polgar Peter , Wilson Jamie L
Published: May 2021

A key feature of pulmonary arterial hypertension (PAH) is the hyperplastic proliferation exhibited by the vascular smooth muscle cells from patients (HPASMC). The growth inducers FOXM1 and PLK1 are highly upregulated in these cells. The mechanism by which these two proteins direct aberrant growth in these cells is not clear. Herein we identify cyclin dependent kinase 1 (CDK1) also termed cell division cycle protein 2 (CDC2), as having a primary role in promoting progress of the cell cycle leading to proliferation in HPASMC. HPASMC obtained from PAH patients and pulmonary arteries from Sugen/hypoxia rats were investigated for their expression of CDC2. Protein levels of CDC2 were much higher in PAH than in cells from normal donors. Knocking down FOXM1 or PLK1 protein expression with siRNA or pharmacological inhibitors lowered the cellular expression of CDC2 considerably. However, knockdown of CDC2 with siRNA or inhibiting its activity with RO-3306 did not reduce the protein expression of FOXM1 or PLK1. Expression of CDC2 and FOXM1 reached its maximum at G1/S, while PLK1 reached its maximum at G2/M phase of the cell cycle. The expression of other CDKs such as CDK2, CDK4, CDK6, CDK7 and CDK9 did not change in PAH HPASMC. Moreover, inhibition via Wee1 inhibitor adavosertib or siRNAs targeting Wee1, Myt1, CDC25A, CDC25B, or CDC25C led to dramatic decreases in CDC2 protein expression. Lastly, we found CDC2 expression at the RNA and protein level to be upregulated in pulmonary arteries during disease progression Sugen/hypoxia rats. In sum, our present results illustrate that the increased expression of FOXM1 and PLK1 in PAH leads directly to increased expression of CDC2 resulting in a potentiated growth hyperactivity of PASMC from patients with pulmonary hypertension. Our results further suggest that the regulation of CDC2, or associated regulatory proteins, will prove beneficial in the treatment of this disease.
The Comorbidities of Childhood Obesity
Authors: Ajari Esther , Ademusire Babatunde , Babatunde Abdulhammed
Published: May 2021

Childhood obesity is a preventable multi-systemic disorder, defined as the body mass index of a child being at or above the 95th percentile, has become an epidemic. In 2019, about 38 million under-five children and over 300 million individuals aged 5-19 were reported to be overweight or obese. In this narrative review, we showed evidences, from existing literature, of the affectation of various body systems by childhood obesity. Co-morbid disorders associated with childhood obesity in the cardiovascular, nervous, dermatological, respiratory, endocrine, reproductive, musculoskeletal, gastrointestinal, and renal systems, and its effects on mental health are discussed. Since obesity ultimately reduces the quality of life of children and is a leading cause of preventable deaths of children globally, effective research, policy and community-based project interventions, aimed at the prevention of obesity and the treatment of its co-morbid disorders, should be taken by all appropriate stakeholders.
Evolution of the Inclusion Population During the Processing of Al-killed Steel
Authors: Mata Rodriguez Marco , Herrera-Trejo Martin , Martínez Enríquez Arturo Isaías , Sanchez-Martinez Rodolfo , Castro-Román M. J. , Castro Uresti Fabian
Published: May 2021

The increasing demand for higher inclusion cleanliness levels motivates the control over the formation and evolution of inclusions in the steel production process. In this work, the evolution of the chemical composition and size distribution of inclusions throughout a slab production process of Al-killed steel, including ladle furnace (LF) treatment and continuous casting (CC), was followed. The initial solid Al2O3 and Al2O3-MgO inclusions were modified to liquid Al2O3-CaO-MgO inclusions during LF treatment. The evolution of the size distributions during LF treatment was associated with the growth and removal of inclusions, as new inclusions were not created after the deoxidation process, according to a population density function (PDF) analysis. Additionally, the size distributions tended to be similar as the LF treatment progressed regardless of their initial features, whereas they differed during CC. Analysis of the upper tails of the distributions through generalized extreme values theory showed that inclusion distributions shifted from larger to smaller sizes as the process progressed. There were great changes in the distributions of large inclusions throughout the LF treatment and between the end of the LF treatment and the start of the CC process. Additionally, distributions of large inclusions differed at the end of the LF treatment, whereas such differences decreased as CC progressed.
The Essence of Telemedicine for Bridging the Gap in Health Services
Authors: Wiweko Budi , Zakirah Sarah Chairani , Luthfi Atha
Published: May 2021

This article aimed to review the essence of telemedicine in current technology and innovation era especially in developing country and the regulation aspect as the main component for health care services. Global electronic health has two crucial components that are telehealth which is based on the e-commerce system and health informatics which is based on the e-learning system. There are five main categories to manage telemedicine, such as system management including revenue stream and technology literacy, health facilities, human resources, data authorization and security, and health protocol. A combination of telemedicine and wearable devices improves health care delivery opportunities by enhancing remote patient monitoring. World Health Organization (WHO) has been described telehealth services in developing country. Some issues related to telehealth are still must be well managed, such as patient’s data security of health services. Our community also should be encouraged to use telehealth. Regular training and evaluation for the people with poor educational background, low income, and stress are the main reasons why our community attend to healthcare service in spite of mild sickness.
2D MXenes: the lowest-emissivity black materials
Authors: Li Yang , Xiong Cheng , Huang He , Peng Xudong , Li Meng , Mei Deqing , Liu Gongze , Wu Maochun , Zhao Tianshou , Huang Baoling
Published: May 2021

Black materials with low infrared absorption/emission are rare in nature but highly desired in numerous areas, such as solar-thermal energy harvesting, infrared camouflage, and anti-counterfeiting. Due to the lack of spectral selectivity in intrinsic materials, such counter-intuitive properties are generally realized by constructing complicated subwavelength artificial nanostructures with precise nanofabrication techniques. Here, we report that 2D Ti3C2Tx MXenes embrace both a low emissivity (down to 10%) and a high solar absorptance (up to 90%), yielding the best spectral selectivity (8.2) and the highest solar-thermal efficiency among the reported intrinsic solar absorbing materials. We demonstrate their appealing potentials in the aforementioned areas. Moreover, the spectral selectivity relies on both the nanoflake orientations and terminal groups, providing great tunability. First-principles calculations suggest more potential low-emissivity MXenes such as Ti2CTx, Nb2CTx, and V2CTx. This work opens the avenue to further exploration of a family of low-emissivity black materials with over 70 members.
Glomus Tumor of Small Intestine: Case Report and Review of Literature
Authors: Tan Yan , Wang Xinyi , Yang Guifang , Liu Lan , Fang Jun , Chang Ying , Zhao Qiu , Zhang Yafei
Published: May 2021

Background: Glomus tumors are exceedingly rare tumors arising from the normal glomus body. Only a very few cases of glomus tumors located in the small intestine were reported to date. Here, we present a case of glomus tumor of the jejunum in a 30-year-old female patient, and discuss its clinical, imaging, and pathologic features.Case presentation: A 30-year-old female referred to our hospital with the chief complain of melena and fatigue for 3 weeks. Oral single-balloon enteroscopy discovered a 2.0*2.0cm tumor without epithelial lining in the jejunum. The patient then underwent partial enterectomy. HE stain illustrated that the tumor was interspersed with congestive capillaries of various size, and admixed with smooth muscle bundles. Immunohistochemical study showed that the tumor cells were strongly positive for SMA and collagen type Ⅳ. The Ki-67 proliferation index was less than 1% and mitotic activity is very low (about 1/50 HPF). The case was finally diagnosed as benign glomus tumor. Conclusion: Glomus tumors arising from the small intestine are extremely rare. The final diagnosis is made by histological and immunohistochemical examination. Although there is no standardized management pathway for these patients, early diagnosis and treatment are important for a good prognosis.
Demersal Fish Diversity and Molecular Taxonomy in the Bering Sea and Chukchi Sea
Authors: wang xuehua , Li Yuan , Zhang Nan , Song Puqing , Zhang Ran , Liu Cheng , Zhang Hushun , Lin Longshan , Li Hai
Published: May 2021

DNA barcoding by sequencing a standard region of cytochrome c oxidase subunit I (COⅠ) provides an accurate, rapid method for identifying different species. In this study, we provide a molecular taxonomic assessment of demersal fishes in the Bering Sea and Chukchi Sea based on DNA barcoding, and a total of 123 mitochondrial COⅠ partial fragments with a length of 652 bp were obtained. The consensus among all sequences was determined by alignment via a BLAST search in GenBank. Phylogenetic relationships were reconstructed on the basis of neighbor-joining (NJ) trees and barcoding gaps. The 39 species investigated in this analysis were distributed among 10 families. Five families within Scorpaeniformes including 19 species accounted for almost half of the species. The next largest group was Perciformes, with 9 species, followed by Pleuronectiformes and Gadiformes, with 5 species each, and the smallest number of species belonged to Rajiformes. At the family level, Cottidae was the largest family, followed by Zoarcidae, accounting for 8 species. The other eight families—Gadidae, Pleuronectidae, Psychrolutidae, Agonidae, Liparidae, Ammodytidae, Hexagrammidae, and Rajidae—accounted for a smaller proportion of species. In brief, our study shows that DNA barcodes are an effective tool for studying fish diversity and phylogeny in the Bering Sea and Chukchi Sea. The contribution of DNA barcoding to identifying Arctic fish species may benefit further Arctic fish studies on biodiversity, biogeography and conservation in the future.
Toward Supplying Internet Everywhere and Anytime
Authors: Kadhim Ahmed Jawad
Published: May 2021

The internet is a common style used to connect various types of networks, sensors and personal devices. Accessing and using the Internet need to permission from an internet service provider (ISP) which needs to pay some amount of money. Internet became for some people like the water and air and need it everywhere and anytime. It can be used in education, business, chatting, etc. Thus, it became as a third lung for the world. Moreover, it works as a backbone for the internet of things (IoT). However, the existed policies of providing Internet for people and IoT are expensive and not efficient in exploiting the available Internet packages. In this paper, a new policy to provide Internet service everywhere (at least in the cities) and any time (IWT) is proposed. It depends on the collaboration concept among users to share Internet account packages with each other to increase Internet availability and utilization. It can determine the time period and the number of allowed devices to connect and use the Internet account of other users. In addition, it determines which user device or IoT sensor should connect at which time depending on the priority. Moreover, it takes the overhead and energy and bandwidth consumption into account. From the simulation results, we concluded that applying IWT can enhance the work of IoT and make the Internet cheaper and increase the percentage of Internet availability.
The Conceptual Socio-Hydrological Based Framework For Water, Energy and Food Nexus
Authors: Molajou Amir , Afshar Abbas
Published: May 2021

The current study introduces a conceptual socio-hydrological based framework for water-energy-food (WEF) nexus. The proposed conceptual framework aims to investigate how farmers' dynamic agricultural activities under different socio-economic conditions affect the WEF systems. The WEF nexus model has been integrated with an Agent-Based Model, reflecting the farmers’ agricultural activities. Furthermore, the agent-based model benefits from Association Rule Mining to define farmer agents’ agricultural decision-making in various conditions. The processes within the WEF nexus are simultaneously physical, socio-economic, ecological, and political. Indeed, there are interrelated interactions among the mentioned processes in ways that have not yet properly delineated, mapped, or even perceived. Thus, for obtaining sustainable outcomes, the current study attempts to investigate trade-offs among natural resources and social systems in the WEF nexus approach. The proposed framework may provide more in-depth future insights for policy-makers through capturing bidirectional feedbacks among farmers and WEF systems. Furthermore, the proposed socio-hydrological WEF nexus framework can be adapted and applied to various societies and environments to provide more in-depth future insights for policy-makers through capturing bidirectional feedbacks among farmers and WEF systems.
A Multi-Dwell Temperature Profile Design for the Cure of Thick CFRP Composite Laminates
Authors: Zhang Wenchang , Xu Yingjie , Hui Xinyu , Zhang Weihong
Published: May 2021

This paper develops a multi-objective optimization method for the cure of thick composite laminates. The purpose is to minimize the cure time and maximum temperature overshoot in the cure process by designing the cure temperature profile. This method combines the finite element based thermo-chemical coupled cure simulation with the non-dominated sorting genetic algorithm-II (NSGA-II). In order to investigate the influence of the number of dwells on the optimization result, four-dwell and two-dwell temperature profiles are selected for the design variables. The optimization method obtains successfully the Pareto optimal front of the multi-objective problem in thick and ultra-thick laminates. The result shows that the cure time and maximum temperature overshoot are both reduced significantly. The optimization result further illustrates that the four-dwell cure profile is more e ective than the two-dwell, especially for the ultra-thick laminates. Through the optimization of the four-dwell profile, the cure time is reduced by 51.0% (thick case) and 30.3% (ultra-thick case) and the maximum temperature overshoot is reduced by 66.9% (thick case) and 73.1% (ultra-thick case) compared with the recommended cure profile. In addition, Self-organizing map (SOM) is employed to visualize the relationships between the design variables with respect to the optimization result.
Chemoprevention of Pancreatic Cancer by Inhibition of Glutathione-S Transferase P1
Authors: Kogawa Takahiro , Sato Yasushi , Shimoyama Rai , Kurata Wataru , Tashiro Yasuyuki , Niitsu Yoshiro
Published: May 2021

Pancreatic cancer is among the most refractory malignancies with poor prognosis. Thus, preventive approaches, in addition to the development of novel therapeutic strategies are essential for this type of cancer. KRAS mutations occur very early in the development of pancreatic cancers and could be targeted for its prevention, yet specific inhibitors for mutated KRAS are lacking. Accordingly, Glutathione-S Transferase p1 (GSTP1), which we recently found to be an autocrine stimulator of mutated KRAS signaling, is predicted to be an alternative target for chemoprevention of pancreatic cancer. In this study, chemopreventive effects of O-Hexadecyl-γ-glutamyl-S-benzyl-cysteinyl-D-phenyl glycine-Ethylester (HGBPE), which we previously synthesized to inhibit GSTP1 activity, was analyzed for its effect on the prevention of a rat pancreatic carcinogenesis model induced by 7,12-dimethyl-benzanthracene (DMBA). Rats administered with DMBA were grouped into five cohorts. In the treated group I, which was treated neither with HGBPE nor vehicle, sequential appearance of precancerous lesions, ductal complexes, and adenocarcinoma was confirmed as previously reported. We also confirmed in this group that mutations of KRAS and expression of GSTP1 simultaneously occurred in the ductal complex. To rats of groups II and IV, HGBPE was administered, and vehicle to those of group III and V. In groups of II and IV, the incidence of both ductal complex and adenocarcinoma were significantly lower than those in groups III and V. These data clearly suggest the efficacy of HGBP as a potential chemopreventive agent for pancreatic cancer.
Seasonal Trend And Source Identification of Polycyclic Aromatic Hydrocarbons Associated With Fine Particulate Matters (PM2.5 ) In Isfahan City, Iran Using Diagnostic Ratio and PMF Model
Authors: Soleimani Mohsen , Ebrahimi Zohreh , Mirghaffari Nourollah , Moradi Hossein , Amini Nasibeh , Pulsen Kristoffer Gulmark , Christensen Jan H.
Published: May 2021

Particulate matters (PMs) and their associated chemical compounds such as polycyclic aromatic hydrocarbons (PAHs) are important factors to evaluate air pollution and its health impacts particularly in developing countries. Source identification of these compounds can be used for air quality management. The aim of this study was to identify the sources of PM2.5-bound PAHs in Isfahan city, a metropolitan and industrialized area in central Iran. The PM2.5 samples were collected at 50 sites during one year. Source identification and apportionment of PAHs were carried out using diagnostic ratios (DRs) of PAHs and positive matrix factorization (PMF) model. The results showed that the concentrations of PM2.5 ranged from 8 to 291 µg/m3 with an average of 60.2 ± 53.9 µg/m3 whereas the sum of concentrations of the 19 PAH compounds (ƩPAHs) ranged from 0.3 to 61.4 ng/m3 with an average of 4.65 ± 8.54 ng/m3. The PAH compounds showed their highest and lowest concentrations in fall and summer, respectively. Applying DRs, suggested that the source of the PAHs were mainly from fuel combustion. The main sources identified by the PMF model were gasoline combustion (28 %) followed by diesel combustion (22 %), natural gas combustion (17 %), evaporative-uncombusted (13 %), industrial activities (11 %), and unknown sources (9 %). The results revealed that in addition to transportation and industrial activities, combustion of natural gas for heating systems as one of the PAHs source in PM2.5 should be managed in the metropolitan area.
5-Axis Double-Flank CNC Machining of Spiral Bevel Gears via Custom-Shaped Milling Tools – Part II: Physical Validations and Experiments
Authors: Escudero Gaizka Gómez , Bo Pengbo , Barrio Haizea González , Ochoa Amaia Calleja , Barton Michael , Marcaide Luis Norberto López de Lacalle
Published: May 2021

We investigate a recently introduced methodology for 5-axis flank computer numerically controlled (CNC) machining, called double-flank milling. Certain geometries, such as curved teeth of spiral bevel gear, admit this approach where the milling tool has tangential contact with the material block on two sides, yielding a more efficient variant of flank milling. To achieve high machining accuracy, the path-planning algorithm, however, does not look only for the path of the tool, but also for the shape of the tool itself. We validate the approach by series of physical experiments using an abrasive custom-shaped milling tool specifically designed for a particular type of a spiral bevel gear. We show the potential of this new methodology in the semifinishing stage of gear manufacturing, where it outperforms traditional ball end milling by an order of magnitude in terms of machining time, while keeping, or even improving, the machining error.
Optimization of the MIG Arc Weld-Brazing Process on Titanium and Aluminum Lap-Joint Welds Using the Taguchi Method, Grey Relational Analysis and Fuzzy Logic
Authors: Lin Hsuan-Liang , Wang You-Jiun
Published: May 2021

The dissimilar materials lap-joint of Ti-6Al-4V titanium (Ti) and 6061 aluminum (Al) alloys was achieved through a metal inert gas (MIG) arc weld-brazing process. The relationships between the major MIG arc weld-brazing parameters such as travel speed of MIG torch, MIG welding current, argon flow rate of MIG torch, wettability of weld bead and mechanical property of Ti/Al lap-joint specimens were investigated. A proposed approach that integrates the Taguchi method, grey relational analysis (GRA) and fuzzy logic was employed to obtain the optimal MIG arc weld-brazing parameters. The proposed approach was adopted to solve the MIG arc weld-brazing process with multiple quality characteristics (QCs). The experimental procedure of this study not only improves the wettability of weld bead, but also increases the tensile strength of Ti/Al lap-joint specimens. Confirmation experiments revealed that this study could efficiently optimize the MIG arc weld-brazing parameters, and the average tensile strength of Ti/Al lap-joint specimens could reaches 178 MPa. During the MIG weld-brazing, higher argon flow rate of the MIG torch that produces turbulence to the weld pool and brings outside air could create a high amount of porosity over the weld bead.