bluuebunny/crossref_metadata_2025 huggingface dataset:
A Higher Step Count Is Associated with the Better Evaluation of Physical Education Lessons in Adolescents
Authors: Frömel Karel , Skalik Krzysztof , Svozil Zbyněk , Groffik Dorota , Mitáš Josef
Published: April 2021

The current study aimed to determine: (a) the step counts of boys and girls in habitual physical education (PE) lessons during school teaching practice, (b) the association between the physical load and the evaluation of PE lessons in boys and girls, and (c) the differences in the meeting of the recommendations for PA in PE lessons between Czech and Polish boys and girls. A total of 4092 adolescents from 74 Czech and 58 Polish secondary schools participated in the study. The step counts were monitored using pedometers, while the attitudes towards PE were assessed using a PE lesson evaluation questionnaire. On average, the Czech boys reached 2476 steps (Polish boys reached 2148 steps) and the Czech girls reached 1766 steps (Polish girls reached 1946 steps) in their PE lessons. A higher step count in PE lessons was associated with higher odds of a positive evaluation of PE lessons in boys (OR = 1.35, 95% CI = 1.123–1.626, p = 0.001) and girls (OR = 1.72, 95%CI = 1.449–2.032, p < 0.001). This study provides evidence that a higher step count in PE is associated with a positive evaluation of PE lessons in boys and girls. The findings are important to support the restoration habits on a regular PA in the post-pandemic time.
Activating Data through Eco-Didactic Design in the Public Realm: Enabling Sustainable Development in Cities
Authors: Cucuzzella Carmela , Hazbei Morteza , Goubran Sherif
Published: April 2021

This paper explores how design in the public realm can integrate city data to help disseminate the information embedded within it and provide urban opportunities for knowledge exchange. The hypothesis is that such art and design practices in public spaces, as places of knowledge exchange, may enable more sustainable communities and cities through the visualization of data. To achieve this, we developed a methodology to compare various design approaches for integrating three main elements in public-space design projects: city data, specific issues of sustainability, and varying methods for activating the data. To test this methodology, we applied it to a pedogeological project where students were required to render city data visible. We analyze the proposals presented by the young designers to understand their approaches to design, data, and education. We study how they “educate” and “dialogue” with the community about sustainable issues. Specifically, the research attempts to answer the following questions: (1) How can we use data in the design of public spaces as a means for sustainability knowledge exchange in the city? (2) How can community-based design contribute to innovative data collection and dissemination for advancing sustainability in the city? (3) What are the overlaps between the projects’ intended impacts and the 17 United Nations Sustainable Development Goals (SDGs)? Our findings suggest that there is a need for such creative practices, as they make information available to the community, using unconventional methods. Furthermore, more research is needed to better understand the short- and long-term outcomes of these works in the public realm.
Erratum: Wang et al. Urbanization Impacts on Natural Habitat and Ecosystem Services in the Guangdong-Hong Kong-Macao “Megacity”. Sustainability 2020, 12, 6675
Authors: Wang Wenjing , Wu Tong , Li Yuanzheng , Xie Shilin , Han Baolong , Zheng Hua , Ouyang Zhiyun
Published: April 2021

The authors would like to make the following correction about the published paper [...]
Comparative Genomic Analysis of Arctic Permafrost Bacterium Nesterenkonia sp. PF2B19 to Gain Insights into Its Cold Adaptation Tactic and Diverse Biotechnological Potential
Authors: Singh Purnima , Kapse Neelam , Gowdaman Vasudevan , Tsuji Masaharu , Singh Shiv Mohan , Dhakephalkar Prashant K.
Published: April 2021

Nesterenkonia sp. PF2B19, a psychrophile was isolated from 44,800-year-old permafrost soil. This is the first report on comparative genomics of Nesterenkonia sp. isolated from Arctic. Genome of PF2B19 exhibited the presence of a vast array of genetic determinants involved in cold adaptation i.e., response to cold-associated general, osmotic, and oxidative stress. These genomic attributes proved to be valuable in unraveling the adaptive tactics employed by PF2B19 for survival in the cold permafrost soils of the Arctic. Genomic analysis of PF2B19 has given some valuable insight into the biotechnological potential of this strain, particularly as a source of cold-active enzymes, as a bioremediating agent and as plant growth-promoting bacteria.
Personal Carbon Trading—Lost in the Policy Primeval Soup?
Authors: Bothner Fabio
Published: April 2021

The number of emission trading and carbon taxation schemes implemented has grown rapidly over the past decade. Together, they cover approximately 16% of global greenhouse gas (GHG) emissions. Although more than two-thirds of global GHG emissions are related to household consumption, approaches that directly target households, such as personal carbon trading (PCT), do not play a role in the fight against climate change. This is especially puzzling as measures taken so far are not sufficient to reach the 2 °C target. One clue to solving this puzzle comes from political science in the form of the multiple streams approach, which defines criteria that a policy proposal must meet to become part of the political agenda. Based on these criteria, this article conducts a systematic review on PCT to clarify why PCT does not play a role in the reduction of GHG emissions. The results show that there are three main problems with the PCT proposal. First, scholars often criticize the set-up costs as well as the running costs of such a system. Second, there is no clear consensus within the research community on public acceptance of PCT. Third, it is still unclear whether politicians are receptive to PCT or not.
Lyapunov Functions and Lipschitz Stability for Riemann–Liouville Non-Instantaneous Impulsive Fractional Differential Equations
Authors: Agarwal Ravi , Hristova Snezhana , O’Regan Donal
Published: April 2021

In this paper a system of nonlinear Riemann–Liouville fractional differential equations with non-instantaneous impulses is studied. We consider a Riemann–Liouville fractional derivative with a changeable lower limit at each stop point of the action of the impulses. In this case the solution has a singularity at the initial time and any stop time point of the impulses. This leads to an appropriate definition of both the initial condition and the non-instantaneous impulsive conditions. A generalization of the classical Lipschitz stability is defined and studied for the given system. Two types of derivatives of the applied Lyapunov functions among the Riemann–Liouville fractional differential equations with non-instantaneous impulses are applied. Several sufficient conditions for the defined stability are obtained. Some comparison results are obtained. Several examples illustrate the theoretical results.
Multi-Criteria Seed Selection for Targeting Multi-Attribute Nodes in Complex Networks
Authors: Karczmarczyk Artur , Jankowski Jarosław , Wątrobski Jarosław
Published: April 2021

Online environments have evolved from the early-stage technical systems to social platforms with social communication mechanisms resembling the interactions which can be found in the real world. Online marketers are using the close relations between the users of social networks to more easily propagate the marketing contents in their advertising campaigns. Such viral marketing campaigns have proven to provide better results than traditional online marketing, hence the increasing research interest in the topic. While the majority of the up-to-date research focuses on maximizing the global coverage and influence in the complete network, some studies have been conducted in the area of budget-constrained conditions as well as in the area of targeting particular groups of nodes. In this paper, a novel approach to targeting multi-attribute nodes in complex networks is presented, in which an MCDA method with various preference weights for all criteria is used to select the initial seeds to best reach the targeted nodes in the network. The proposed approach shows some symmetric characteristics—while the global coverage in the network is decreased, the coverage amongst the targeted nodes grows.
The I-Love-Q Relations for Superfluid Neutron Stars
Authors: Yeung Cheung-Hei , Lin Lap-Ming , Andersson Nils , Comer Greg
Published: April 2021

The I-Love-Q relations are approximate equation-of-state independent relations that connect the moment of inertia, the spin-induced quadrupole moment, and the tidal deformability of neutron stars. In this paper, we study the I-Love-Q relations for superfluid neutron stars for a general relativistic two-fluid model: one fluid being the neutron superfluid and the other a conglomerate of all charged components. We study to what extent the two-fluid dynamics might affect the robustness of the I-Love-Q relations by using a simple two-component polytropic model and a relativistic mean field model with entrainment for the equation-of-state. Our results depend crucially on the spin ratio Ωn/Ωp between the angular velocities of the neutron superfluid and the normal component. We find that the I-Love-Q relations can still be satisfied to high accuracy for superfluid neutron stars as long as the two fluids are nearly co-rotating Ωn/Ωp≈1. However, the deviations from the I-Love-Q relations increase as the spin ratio deviates from unity. In particular, the deviation of the Q-Love relation can be as large as O(10%) if Ωn/Ωp differ from unity by a few tens of percent. As Ωn/Ωp≈1 is expected for realistic neutron stars, our results suggest that the two-fluid dynamics should not affect the accuracy of any gravitational waveform models for neutron star binaries that employ the relation to connect the spin-induced quadrupole moment and the tidal deformability.
Comparison of Serological Assays for the Detection of SARS-CoV-2 Antibodies
Authors: James Joe , Rhodes Shelley , Ross Craig S. , Skinner Paul , Smith Samuel P. , Shipley Rebecca , Warren Caroline J. , Goharriz Hooman , McElhinney Lorraine M. , Temperton Nigel , Wright Edward , Fooks Anthony R. , Clark Tristan W. , Brookes Sharon M. , Brown Ian H. , Banyard Ashley C.
Published: April 2021

SARS-CoV-2 virus was first detected in late 2019 and circulated globally, causing COVID-19, which is characterised by sub-clinical to severe disease in humans. Here, we investigate the serological antibody responses to SARS-CoV-2 infection during acute and convalescent infection using a cohort of (i) COVID-19 patients admitted to hospital, (ii) healthy individuals who had experienced ‘COVID-19 like-illness’, and (iii) a cohort of healthy individuals prior to the emergence of SARS-CoV-2. We compare SARS-CoV-2 specific antibody detection rates from four different serological methods, virus neutralisation test (VNT), ID Screen® SARS-CoV-2-N IgG ELISA, Whole Antigen ELISA, and lentivirus-based SARS-CoV-2 pseudotype virus neutralisation tests (pVNT). All methods were able to detect prior infection with COVID-19, albeit with different relative sensitivities. The VNT and SARS-CoV-2-N ELISA methods showed a strong correlation yet provided increased detection rates when used in combination. A pVNT correlated strongly with SARS-CoV-2 VNT and was able to effectively discriminate SARS-CoV-2 antibody positive and negative serum with the same efficiency as the VNT. Moreover, the pVNT was performed with the same level of discrimination across multiple separate institutions. Therefore, the pVNT is a sensitive, specific, and reproducible lower biosafety level alternative to VNT for detecting SARS-CoV-2 antibodies for diagnostic and research applications. Our data illustrate the potential utility of applying VNT or pVNT and ELISA antibody tests in parallel to enhance the sensitivity of exposure to infection.
Effect of Breeding Techniques and Prolonged Post Dry Aging Maturation Process on Biomolecule Levels in Raw Buffalo Meat
Authors: Salzano Angela , Cotticelli Alessio , Marrone Raffaele , D’Occhio Michael J. , D’Onofrio Nunzia , Neglia Gianluca , Ambrosio Rosa Luisa , Balestrieri Maria Luisa , Campanile Giuseppe
Published: April 2021

Recently, several concerns have been expressed on red meat quality and consumption. The aims of this study were to evaluate the influence of different breeding techniques and a prolonged post dry aging (PDA) maturation process on biomolecules level in raw buffalo meat. In the first experiment, two groups of animals were maintained with different space availability (15 vs. 10 m2/animal) for 90 days and biomolecules content was evaluated. In experiment 2, two diets (with or without ryegrass green forage) were used to assess the concentration of these biomolecules. Finally, in experiment 3, the meat of the animals that showed the highest content of biomolecules was chosen to assess the influence of the PDA maturation process. Buffaloes reared at 15 m2 showed a significantly (p < 0.05) higher content of the considered biomolecules compared with their counterparts. Similarly, buffaloes fed green forage showed higher content of biomolecules (p < 0.05) compared with the control group. The meat of the animals bred at 15 m2 and fed green forage showed a significant (p < 0.01) increase of biomolecules content during the PDA maturation process up to 60 days without influence microbiological profile in terms of total aerobic bacterial counts, yeasts, and molds. In conclusion, breeding techniques and PDA maturation system could enhance biomolecules levels in terms of quality, without affect health standards.
Dental Fluorosis in Children from Aguascalientes, Mexico: A Persistent Public Health Problem
Authors: González Dávila Osiel
Published: April 2021

This paper estimates the prevalence and severity of dental fluorosis among participants in the first wave of The Aguascalientes Longitudinal Study of Child Development (EDNA). The analytical sample includes 1052 children in 100 public elementary schools. Dental fluorosis is determined using the Modified Dean’s Index. There is a 43% general dental fluorosis prevalence, and the estimated Community Fluorosis Index is 0.99. Five municipalities report average groundwater fluoride concentrations above the official Mexican guideline value of 1.5 mg/L. In those municipalities, there is a 50% average dental fluorosis prevalence. An ordered logistic regression analysis indicates that obesity in participants increases the likelihood of suffering more severe dental fluorosis symptoms compared with normal-weight participants (OR = 1.62, p < 0.05). Households consuming tap water are more likely to have children suffering more severe dental fluorosis symptoms (OR = 1.63, p < 0.05). Children aged 8 years are more likely to present more severe dental fluorosis symptoms than their peers aged 7 years (OR = 1.37, p < 0.05). Dental fluorosis will persist as a public health problem in Aguascalientes State unless appropriate technologies for fluoride removal from water are installed and operated.
Erythromycin Abatement from Water by Electro-Fenton and Peroxyelectrocoagulation Treatments
Authors: Serra-Clusellas Anna , Sbardella Luca , Herrero Pol , Delpino-Rius Antoni , Riu Marc , de Lourdes Correa María , Casadellà Anna , Canela Núria , Martínez-Lladó Xavier
Published: April 2021

Electro-Fenton (EF) and peroxyelectrocoagulation (PEC) processes were investigated to mineralize 10 mg L−1 erythromycin from ultrapure water, evaluating the influence of the anode material (BDD and Fe), current density (janode) (5 mA cm−2 and 10 mA cm−2), oxygen flowrate injected to the cathode (0.8 L min−1 O2 and 2.0 L min−1 O2) and pH (2.8, 5.0 and 7.0) on the process efficiency and the electricity costs. 70% mineralization was reached after applying 0.32 A h L−1 under the best operational conditions: PEC treatment at 5 mA cm−2, 2.0 L min−1 O2 and pH 2.8. The electricity consumption of the electrochemical cell under these conditions was approximately 0.3 kWh m−3. Early-stage intermediates produced from erythromycin degradation were identified and quantified throughout the treatment and a potential erythromycin degradation pathway was proposed. The most appropriate operational conditions tested with synthetic solutions were applied to treat a real effluent from the tertiary treatment of an urban wastewater treatment plant. All emerging compounds listed in the EU Decision 2018/840 (Watch List 2018) were determined before and after the PEC treatment. All listed pollutants were degraded below their quantification limit, except estrone and 17-α-ethinylestradiol which were 99% removed from water. Electricity consumption of the electrochemical cell was 0.4 kWh m−3. Whilst awaiting future results that demonstrate the innocuity of the generated byproducts, the results of this investigation (high removal yields for emerging pollutants together with the low electricity consumption of the cell) indicate the promising high potential of PEC treatment as a water treatment/remediation/regeneration technology.
Recent Development of Gas Sensing Platforms Based on 2D Atomic Crystals
Authors: Cao Jiacheng , Chen Qian , Wang Xiaoshan , Zhang Qiang , Yu Hai-Dong , Huang Xiao , Huang Wei
Published: April 2021

Sensors, capable of detecting trace amounts of gas molecules or volatile organic compounds (VOCs), are in great demand for environmental monitoring, food safety, health diagnostics, and national defense. In the era of the Internet of Things (IoT) and big data, the requirements on gas sensors, in addition to sensitivity and selectivity, have been increasingly placed on sensor simplicity, room temperature operation, ease for integration, and flexibility. The key to meet these requirements is the development of high-performance gas sensing materials. Two-dimensional (2D) atomic crystals, emerged after graphene, have demonstrated a number of attractive properties that are beneficial to gas sensing, such as the versatile and tunable electronic/optoelectronic properties of metal chalcogenides (MCs), the rich surface chemistry and good conductivity of MXenes, and the anisotropic structural and electronic properties of black phosphorus (BP). While most gas sensors based on 2D atomic crystals have been incorporated in the setup of a chemiresistor, field-effect transistor (FET), quartz crystal microbalance (QCM), or optical fiber, their working principles that involve gas adsorption, charge transfer, surface reaction, mass loading, and/or change of the refractive index vary from material to material. Understanding the gas-solid interaction and the subsequent signal transduction pathways is essential not only for improving the performance of existing sensing materials but also for searching new and advanced ones. In this review, we aim to provide an overview of the recent development of gas sensors based on various 2D atomic crystals from both the experimental and theoretical investigations. We will particularly focus on the sensing mechanisms and working principles of the related sensors, as well as approaches to enhance their sensing performances. Finally, we summarize the whole article and provide future perspectives for the development of gas sensors with 2D materials.
EFEKTIVITAS KEBIJAKAN BERSEPEDA KE SEKOLAH PADA PROGRAM SEPEDA GRATIS UNTUK SISWA SMP NEGERI DI KOTA BLITAR, PROVINSI JAWA TIMUR, INDONESIA
Authors: Budiman Arif
Published: April 2021

Moda transportasi aktif seperti berjalan kaki atau sepeda memiliki banyak manfaat. Namun tren ketergantungan terhadap kendaraan bermotor justru terus meningkat termasuk di Indonesia. Pada tahun 2016, Walikota Blitar menginisiasi Program Sepeda Gratis untuk mendorong siswa bersepeda ke sekolah. Program ini diimplementasikan tahun 2017 dengan anggaran Rp.14.171.895.000,- untuk menyediakan 5.600 unit sepeda bagi siswa SMP Negeri di Kota Blitar. Kebijakan ini menarik karena merupakan model kebijakan baru dan pertama di Indonesia. Tujuan penelitian ini adalah untuk mengetahui tingkat efektivitas kebijakan ini. Penelitian dilakukan dengan pendekatan deduktif kuantitatif dan kualitatif. Kuesioner suvei didistribusikan kepada 448 siswa, 448 orang tua siswa, dan 118 guru serta wawancara dilakukan kepada 15 instansi pemerintah. Hasil penelitian menunjukkan peningkatan pengguna sepeda oleh siswa dari 15.9 persen ke 29.5 persen dan menurunnya penggunaan sepeda motor. Pada skala 1-10, tingkat kepuasan siswa pada kebijakan ini pada angka 7.42 sedangkan persepsi orang tua siswa dan guru akan tercapainya tujuan kebijakan ini mencapai skor 8.17. Analisis Uji Chi-square menunjukkan ada delapan variabel signifikan yang memiliki korelasi dengan pilihan moda transportasi siswa.
La idea del desarrollo ayer y hoy: el desarrollo como derecho
Authors:   Universidad Nacional Autónoma de México, Cordera Campos Rolando
Published: April 2021

La crisis de la globalidad propicia la apertura del debate sobre el desarrollo. Desde la óptica de los llamados países periféricos, el tema de la justicia social adquiere centralidad. Los estudios del desarrollo están llamados a deliberar sobre las políticas globales y el porvenir de las democracias. En esa tarea, el desarrollo se concibe como un proceso complejo que involucra grandes y pequeños cambios sociales, además de diversas formas de aprendizaje democrático. La actual coyuntura, además de poner en cuestión la conducción económica o la protección social, desafía las maneras en que las sociedades y los Estados afrontarán el actual laberinto cuya salida presagia un cambio de época. Sin embargo, la academia y los comandos políticos de la economía necesitan reflexionar en un horizonte de largo plazo para superar los tormentos actuales.
Desarrollo y derechos humanos
Authors:   Universidad Nacional de Costa Rica, Rivera Alfaro Ronald Gerardo
Published: April 2021

Como parte de la filosofía moral, la ética puede entenderse como el conjunto de reglas, normas, valores y prohibiciones que regulan y guían el comportamiento del ser humano. La ética forma parte de la cultura. De esta manera, el cuerpo material de la ética se ve plasmada en lo que hoy día conocemos como derechos humanos. Se concibe a la vez la multiplicación conceptual de los derechos humanos sin un verdadero contenido material relacionado con la dignidad humana y sus condiciones de vida, de manera que el ligamen entre el derecho al desarrollo y los derechos humanos es fundamental, más aún si se condensa con la posibilidad de fungir como soporte para la concreción de un proyecto de vida digna.
Karl Polanyi para América Latina: desarrollo y transformación social
Authors:   Dublin City University, Munck Ronaldo
Published: April 2021

Cada vez más influyente en las teorías del desarrollo y la transformación social, Karl Polanyi ha tenido un efecto relativamente limitado en América Latina. Polanyi fue un crítico temprano de la teoría de la modernización y articuló una perspectiva histórico-estructural alternativa. Su trabajo sobre las sociedades «primitivas» o precapitalistas también tiene una clara resonancia en un continente que se encuentra repensando activamente su pasado amerindio. Especialmente, la aguda crítica de Polanyi acerca de los efectos de una economía de mercado desregulado sobre la humanidad y la naturaleza contribuye a nuestro entendimiento crítico del neoliberalismo en América Latina. Asimismo, su destacada y original teoría de un contramovimiento desde la sociedad para protegerse a sí misma del mercado, ilumina ampliamente la política de América Latina de estos últimos 20 años con el incremento del centro izquierda a lo largo del continente. El despliegue del desarrollo y la transformación social de América Latina podría, a la inversa, enriquecer la teoría y la visión política de Karl Polanyi desde una perspectiva del Sur global.
¿Hacia dónde, Cuba?
Authors:   Centro para la Justicia Global, DuRand Cliff
Published: April 2021

Desde la década de los sesenta, Estados Unidos implementa una estrategia para descarrilar la Revolución cubana. La administración de Barack Obama ha aceptado que esa línea dura no ha funcionado, no obstan la política continúa interesada en que Cuba regrese al sistema capitalista. Obama pretende cambiar a Cuba no mediante un cambio de régimen sino apoyando a la pequeña burguesía cubana. El reconocimiento del gobierno cubano no implica la aceptación del sistema económico socialista. Esa estrategia aprovecha la apertura a los pequeños emprendimientos privados dentro de las recientes reformas cubanas. Si bien no se abandona el papel central del Estado, las reformas implican un desplazamiento del modelo del Estado socialista hacia un modelo con una sociedad civil mucho más activa.
América Latina ante la valorización mundial del capital
Authors:   Universidad Autónoma Metropolitana Xochimilco, Osorio Jaime
Published: April 2021

Tras agudas derrotas al movimiento popular y el contar con abundante mano de obra disponible, el capital ha puesto en marcha una serie de medidas, como la segmentación productiva, auge del capital financiero y ficticio, revoluciones tecnológicas y nuevos patrones de reproducción del capital, con el fin de contrarrestar la caída de la ganancia y encontrar una salida a la crisis. América Latina ha regresado a su vieja condición de región productora de materias primas y alimentos, favoreciendo ahora a China el paso a la plusvalía relativa como forma dominante de generación de valor. Su contracara es la agudización de los procesos de superexplotación en nuestra región.
SPEED AND ACCURACY OF EXAMINATION OF BRANDS VERY IMPORTANT IN LEGAL CERTAINTY FOR BRAND REGISTERS IN INDONESIA
Authors: Gunawan Yusuf
Published: April 2021

A brand is a form of intellectual property right that has a very important role and value for the smooth and increasing trade in goods or services. Thus the importance of the role of this brand, then the brand put legal protection. The long process when the brand registration in Indonesia is detrimental to the business world in global competition. This research is to find out and review the implementation of the brand registration process in Indonesia in an effort to speed up and appropriately check a brand in order to obtain legal certainty. Another goal is to find solutions to problems that are obstacles to the speed and accuracy of brand registration. Another goal is to find solutions to problems that are obstacles to the speed and accuracy of brand registration. This research is descriptive to provide a description of the problems that occur and the type of research is empirical legal research, namely from library research that is arranged systematically, researched, and studied in full. This research is very important so that the brand registration process can be accelerated, more accurately which can result in legal certainty and protection for brand registrants in carrying out their business. The results showed that: First, the brand registration process must use filtering at the first search stage and registration of a brand, about similarities with brands registered in the same or different classes in order to reduce the examiner's workload and the number of brand disputes that have been this is done when examining a registered trademark. Second, the obstacles found can be overcome with a complete database and the use of technological sophistication.
MENTAL HEALTH ISSUES AT WORKPLACE: AN OVERVIEW OF LAW AND POLICY IN MALAYSIA AND UNITED KINGDOM (UK)
Authors: Azmi Ruzita , Ahmad Siti Nur Samawati , Mustafa Bidayatul Akmal
Published: April 2021

Surveys showed that workers in Malaysia are at high risk of health problems including mental health problems that stemmed from the rising stress level at work. Despite having employees’ safety, health, and welfare being codified, depression will be a major mental health illness among Malaysian by 2020. The Occupational Safety and Health Act 1994 (OSHA 1994) that caters to legislative framework in terms of securing safety, health, and welfare among Malaysian workforces has no provisions to provide a supportive environment for mental health wellbeing at the workplace as well as support for employees with a mental health problem. Furthermore, OSHA 1994 is self-regulated, causing fewer employers to develop OSH codes of practice and guidelines. This is among the weaknesses of OSHA 1994. This paper aims to examine the existing law and policy in Malaysia on mental health at the workplace. It also aims to compare the policy and legal framework in developed commonwealth countries such as the UK. This paper applies qualitative and comparative methods, consisting of a doctrinal legal research approach to understand the principles of law and policies dealing with mental health. A comparative method is employed in order to compare the policies and legal frameworks of mental health wellbeing in developed countries such as the UK. The comparative approach involves an examination of the similarities and dissimilarities between situations within the same legal system. The paper concludes that in order to support mental health and wellbeing at the workplace, a comprehensive legal framework and effective policy are needed especially for Malaysia. Compared with the UK, Malaysia is still lagged behind and has so much to learn from UK’s experiences to tackle issues on mental health.
Educational Intervention on Self Efficacy among Postoperative Fracture: A Literature Review
Authors: Ni Luh Putu Sri Wirayuni , Yona Sri
Published: April 2021

Fracture is a disruption of the normal discontinuity of bone and causes the surrounding tissue to be disrupted. Management of fractures is generally divided into recognition, reduction, retention, and rehabilitation. Exercises in the postoperative fracture patient rehabilitation program require patience and take a long time to achieve maximum cure. Nurses' therapeutic action in helping patients do rehabilitation exercises is by increasing the patient's self-efficacy to be independent in carrying out activities. Efforts to increase self-efficacy can be made through nursing interventions. This literature review aimed to explore the appropriate interventions on improving self-efficacy among postoperative fracture patients. Methods: This study was obtained from 4 databases, namely EBSCO, Key clinical, Willey, and Proquest, using inclusion and exclusion criteria. Results obtained. Decreased self-efficacy can occur in cases that require long action both for the healing process and chronic disease and when taking actions to maintain health, including post-surgery fractures. In conclusion, educational media will make it easier to provide interventions in increasing self-efficacy by paying attention to the factors that affect self-efficacy, namely master experience, vicarious experience, verbal persuasion, and emotional Arousal. The recommendation is that patients need support for adjusting the use of tools in providing education, providing logistics from samples in the application of education through technology media and to parents
THE TECHNIQUE OF SUBSTANTIATING THE RATIONAL COMPOSITION OF INFORMATION SECURITY TOOLS WITH CONSTRAINED RESOURCES
Authors:   St. Petersburg University of the MIA of Russia, Sineshchuk Iurii I. , Davydova Tatiana I. ,   Federal Research-and-Production Center Joint Stock Company ‘Research-and-Production Association ‘Mars’
Published: April 2021

Finding the optimal structure of an information security system is an important task complicated by its uncertain, stochastic and nonlinear nature especially, if resources are constrained. The article considers a mathematical model for determining the cost of damage prevented by information security tools, and the cost of their installation and maintenance. The optimization criterion is the minimum cost of the damage prevented. Task variables are the number of different types of security features installed in the security system. The authors propose a methodology to substantiate rational composition of information security tools, taking into account economic constraints.
THE ASSIGNMENT OF TASKS TO THE NODES OF THE IOT DISTRIBUTED SYSTEM BASED ON REINFORCEMENT MACHINE LEARNING
Authors:   Bauman Moscow State Technical University, Stepanova Maria V. , Eremin Oleg I. ,   Bauman Moscow State Technical University
Published: April 2021

The article describes issues of applying an adaptive approach based on reinforcement learning for assignment of the computing tasks to nodes of distributed Internet of Things (IoT) platform. The IoT platform consists of heterogeneous elements that are computing nodes. Classical approaches, methods, and algorithms for distributed and parallel systems are not suitable for task assignment in IoT systems due to its characteristics. The reinforcement learning method allows you to solve the problem of building a distributed system due to the adaptive formation of a sequence of computational nodes and the corresponding computational tasks. Thus, the article represents a method that makes IoT nodes capable of execution computing tasks, especially, which were previously designed for classical distributed and parallel systems.
AN APPROACH TO THE CONTEXTUAL ANALYSIS OF TIME SERIES
Authors:   Ulyanovsk State Technical University, Romanov Anton A. , Filippov Aleksei A. ,   Ulyanovsk State Technical University
Published: April 2021

Forecasting methods despite their conventions and limitations are the evolution of descriptive analytics mechanisms. Any model of the real-world objects works only under conditions of restrictions and agreements. The same conclusion can be made for the forecasting process, that it is not possible to forecast future state of the researched objects for 100%. However, building the most accurate forecast under the given conditions is the key. Modern data mining methods are based on a variety of models. However, such models can’t define the components of researched objects and processes except those contained in their models. The context allows using additional domain knowledge in describing the behavior of objects and processes in the form of qualitative assessments of their state. The same dataset in different domains will have various models and analysis results. The article deals with an approach to the domain context formation based on the ontology for analyzing time series of industrial processes indicators. The logical representation of the ontology based on the ALCHI(D) descriptive logic is also considered. The article describes as well experimental results confirming the correctness and effectiveness of the approach proposed.
THE MEASUREMENT OF THERMAL PARAMETERS BY CHANGING FREQUENCY OF EMBEDDED RING OSCILLATOR
Authors:   Ulyanovsk Branch of the Kotel’nikov Institute of Radioengineering and Electronics (IRE) of RAS, Tetenkin Iaroslav G. , Sergeev Viacheslav A. ,   Ulyanovsk Branch of the Kotel’nikov Institute of Radioengineering and Electronics (IRE) of RAS
Published: April 2021

The article describes a brief analysis of linear thermal models of digital integrated circuits (DIC) and algorithms for determining the parameters of thermal equivalent circuits of DIC-based on transient thermal characteristics (TTC). It distinguishes the difficulties in implementing the algorithm for determining the thermal parameters of the DIC-based on the method of structure functions according to the JESD51-14 document and describes a new method for measuring the FPGA TTC by changing the frequency of a ring oscillator embedded in the FPGA logic elements. It also considers the hardware-software complex used for measuring the thermal parameters of FPGAs and proposes a simple algorithm for calculating the thermal parameters of FPGAs based on the analysis of the FPGA TTC using methods of numerical differentiation. The specified algorithm for calculating thermal parameters has been tested on the example of FPGA TTC EPM240T100C5 and Lattice M4A5-64/32.
ҲАРБИЙ ЖУРНАЛИСТИКАНИНГ МЕДИАМАКОНДАГИ ДОЛЗАРБ ЎРНИ ВА АҲАМИЯТИ
Authors: SAFAROV Alijon
Published: April 2021

Бугун замонавий таҳдидлар, хавфсизликка қарши қаратилган хатарлар уруш “қиёфаси”ни ўзгартириб, ҳарбий ҳаракатлар театрининг таъсир кўлами минтақа, жаҳон миқёсида кенгаймоқда. Бу қайноқ нуқталар, қизғин жараёнлар ҳақидаги ахборотга бўлган эҳтиёжни оширмоқда. Уруш ва зиддиятлар, қуролли тўқнашувларда матбуотнинг, хусусан ҳарбий ОАВнинг ахборий ва коммуникациявий манипуляция борасидаги чексиз имкониятларидан самарали фойдаланган томоннинг қўли баланд келади, деган қарашлар шаклланаётгани ва ҳаётда исботини топаётгани натижасида масала янада долзарб характер касб этяпти. Бу эса ҳарбий матбуотнинг медиа макондаги ўрни ва аҳамияти ортишига сабаб бўлиб, янги ҳарбий журналистика шаклланиши заруратини келтириб чиқарди. Қадимда кечган муҳорабаларда ахборотнинг кучи қаҳрамонликни улуғлаш, душманга ёлғон маълумот орқали таъсир этишда намоён бўлса, кенг омма онгига таъсир қилувчи медиа ривожлана бошлаган XIX аср бошига келиб глобал матбуот ва глобал конфликт негизида шаклланмоқда. Яъни ҳарбий матбуот уруш ва тўқнашувларда тобора манипулятив медиа сифатида намоён бўлиб, назорат ва бошқарувчилик функцияси олдинга чиқди. Медиа макондаги мана шундай заруратнинг тадрижий ривожланиши шароитидан келиб чиқиб, мазкур мақолада ҳарбий журналистика олдида турган долзарб муаммоларга эътибор қаратилади, ҳарбий журналист касбий фаолиятининг ҳуқуқий асослари, шахсий хавфсизлиги таъминланганлиги, зиддиятли вазиятларда ахборот олиш ва тарқатиш кўникмалари ечими борасида аниқ таклифлар берилади. Уларнинг самарали ҳал этилиши жаҳон ҳарбий журналистикасида кечаётган муҳим жараёнларга интеграциялашувимизни жадаллаштиришга, янги Ўзбекистонда мудофаа қурилиши ва Қуролли Кучларни ривожлантириш борасида ижтимоий ахборот сифати ортишига хизмат қилиши бўйича хулосалар чиқарилади
Alcances de la política monetaria: Marco teórico y regularidades empíricas en la experiencia mexicana
Authors: Carstens Agustín , Reynoso Alejandro
Published: April 2021

Un tema que ocupa un lugar destacado en el debate sobre la política económica en México es el del papel que debe desempe ñ ar la autoridad monetaria para promover la producción, el empleo y la competitividad internacional de la economía en un ambiente de estabilidad de precios. Apoyados en la vasta investigación disponible sobre los alcances de la política monetaria, se desarrolla un modelo muy sencillo que sugiere que, dentro de ciertos rangos, es deseable una política monetaria que acomode las necesidades de liquidez inherentes a las transacciones normales de una economía, y a las necesidades de transferencias intertemporales de recursos de los ahorradores. Sin embargo, rebasados ciertos límites, la expansión monetaria es, en el mejor de los casos, neutral repercutiendo predominantemente en el nivel de precios. Remitiéndose a los informes públicos del Banco de México en los últimos a ñ os, se sugiere que el criterio de operación adoptado por dicho instituto emisor se aproxima a lo deseable desde el punto de vista del bienestar social. El documento concluye mostrando las relaciones de largo plazo entre agregados monetarios y los principales indicadores del sector real de la economía mexicana, las cuales tienden a confirmar la referida hipótesis de neutralidad y la concomitante recomendación de que el Banco de México persevere en su propósito de abastecer de liquidez indispensable a la economía procurando a la vez la estabilidad de precios.
High-torque variator with rocker oscillating mechanism
Authors: Pylaev B.V.
Published: April 2021

The design and the theory of calculation of the rocker oscillatory mechanism are presented, which provides an increase in more than 2 times the oscillation range of the oscillating shaft in comparison with the known oscillating mechanisms. The device allows to significantly increase the effectiveness of a high-torque non-frictiontype variator: it increases the variation range, reduces the cost of the design and reduces the metal consumption of the variator.
Keywords: adjustable oscillating mechanism, cam non-friction high-torque variator

mr.bvp1944@mail.ru
Research of stamping of unequal channel bars. Part 1. Comparison of technological capabilities of existing methods of channels manufacturing
Authors: Vorontsov A.L
Published: April 2021

By comparison of the technological capabilities of extrusion, sheet stamping, rolling, profile bending and pressing it is shown the advantage of extrusion processing in the manufacture of channels with elements of different thickness.
Keywords: pressing, extrusion, channel.
mt13@bmstu.ru
Construction of mathematical models of technological processes based on theory of sets
Authors: Kalyakulin S.Yu. , Mitin E.V. , Sul'din S.P.
Published: April 2021

An approach to the construction of mathematical models of technological processes based on theory of sets is considered.
Keywords: structure, isomorphism, mathematical model, technological process, connections, technology.
rim-tm@mail.ru
Improvement of the tribological parameters of lubricants by the introduction of an inorganic polymer additives
Authors: Kolesnikov I. V. ,   Savenkova M. A., Sychev A. P., Ermakov S. F., Koroleva A. I., Volyanik S. A., Avilov V. V.
Published: April 2021

The use of zinc phosphate tungstate additive to improve the tribotechnical characteristics of "ЦИАТИМ-201" and "ЛЗ-ЦНИИ" greases is considered. It is established that the introduction of the 2Zn(PO3)2•4WO3 additive into the dispersion medium of these lubricants improves the tribotechnical properties, reducing the operating parameters.
Keywords: friction, semisolid lubricant, wear resistance, antifriction additive, zinc phosphorus tungstate, structure transformation, lubricating film.
alekc_sap@mail.ru
PENGARUH JENIS STEK TERHADAP KEBERHASILAN PEMBIBITAN BAMBU HITAM (Gigantochloa atroviolaceae Widjaja)
Authors: Hani Aditya
Published: April 2021

Black bamboo seedlings through vegetative propagation still need to be developed in order to obtain the right propagation technique. Trials of making black bamboo seedlings from branch cuttings resulted in a low success rate. This study aims to determine the type of black bamboo stem cutting material. This study used a completely randomized design method (CRD) with the treatment of cuttings, namely: stem cuttings from the weevil (remaining cut), 1-segment stem cuttings, 2-segment stem cuttings, 3-segment stem cuttings. The parameters observed were shoot height, diameter, number of shoot and root length. The result show that the treatment of weevil stem cuttings produced the best shoot growth in all growth parameters.
Al-Islam dan Kemuhammadiyahan (Aik) dalam Pandangan Mahasiswa Universitas Muhammadiyah Malang (Umm)
Authors: Faridi Faridi
Published: April 2021

There are three reasons for al-Islam and Kemuhammadiyahan (AIK) to be used as courses at Muhammadiyah Higher Education, including: so that students are able to become Indonesians who are Muslim and have a modern mindset; students can be touched by their souls and able to practice their values; and fostering student ethics in the midst of the Muhammadiyah Higher Education environment. However, when AIK came into contact with students who had various religious ideological backgrounds, it gave birth to various perceptions. Based on this reality, the focus of this research is formulated in the form of a question: how are students' responses and perceptions to the AIK course system? This research is descriptive analytical with data collection techniques in the form of interviews and open-ended questionnaires. This research concluded that all respondents agreed that AIK was used as a subject for reasons, among others: it was able to understand Muhammadiyah's struggle; and he is able to have a strong Islamic provision, knowledge and understanding of pure Islam, and can practice Islamic values ​​in real life. However, AIK learning is considered too monotonous which emphasizes cognitive aspects, so that AIK does not encourage the awakening of daily values; learning methods, facilities and infrastructure also need improvement so that students avoid burnout.                                                

Keywords: religion, Islam, students

Ada tiga alasan al-Islam dan Kemuhammadiyahan (AIK) dijadikan mata kuliah di Perguruan Tinggi Muhammadiyah, antara lain: agar mahasiswa mampu menjadi bangsa Indonesia yang beragama Islam dan mempunyai alam pikiran modern; mahasiswa dapat tersentuh jiwanya serta mampu mengamalkan nilai-nilainya; dan menumbuhkan etika kemahasiswaan di tengah-tengah lingkungan Perguruan Tinggi Muhammadiyah. Namun, ketika AIK bersentuhan dengan mahasiswa yang mempunyai latar ideologi keagamaan yang beragam melahirkan berbagai persepsi. Berdasarkan realitas tersebut, fokus riset ini dirumuskan dalam bentuk pertanyaan: bagaimana respon dan persepsi mahasiswa terhadap sistem mata kuliah AIK?. Riset ini bersifat deskriptif analitis dengan teknik pengumpulan data berupa wawancara dan angket yang sifatnya terbuka. Riset ini menyimpulkan, semua responden menyetujui AIK dijadikan mata kuliah dengan alasan, antara lain: bisa untuk memahami perjuangan Muhammadiyah; dan ia mampu memiliki bekal keislaman yang kuat, pengetahuan dan pemahaman tentang Islam yang murni, serta dapat mengamalkan nilai-nilai Islam dalam kehidupan yang sebenarnya. Namun pembelajaran AIK dinilai terlalu monoton yang menekankan pada aspek kognitif, sehingga AIK kurang mendorong terbangunnya penjiwaan nilai nilai keseharian; metode pembelajaran, sarana maupun prasarana juga perlu pembenahan agar mahasiswa terhindar dari kejenuhan.

Kata Kunci: agama, Islam, mahasiswa
Two open problems in the fixed point theory of contractive type mappings on quasimetric spaces
Authors:   DEPARTMENT OF PHYSICS, MATHEMATICS AND INFORMATION TECHNOLOGIES TIRASPOL STATE UNIVERSITY GH. IABLOCIKIN 5, MD2069 CHISINAU, REPUBLIC OF MOLDOVA E-mail address: mmchoban@gmail.com, CHOBAN MITROFAN M. , BERINDE VASILE ,   DEPARTMENT OF MATHEMATICS AND COMPUTER SCIENCE NORTH UNIVERSITY OF BAIA MARE VICTORIEI 76, 430122 BAIA MARE, ROMANIA E-mail address: vberinde@cunbm.utcluj.ro,   DEPARTMENT OF MATHEMATICS AND STATISTICS KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS DHAHRAM, KINGDOM OF SAUDI ARABIA E-mail address: vasile.berinde@gmail.com
Published: April 2021

Two open problems in the fixed point theory of quasi metric spaces posed in [Berinde, V. and Choban, M. M., Generalized distances and their associate metrics. Impact on fixed point theory, Creat. Math. Inform., 22 (2013), No. 1, 23–32] are considered. We give a complete answer to the first problem, a partial answer to the second one, and also illustrate the complexity and relevance of these problems by means of four very interesting and comprehensive examples.
On a theorem of Brian Fisher in the framework of w-distance
Authors:   UNIVERSITY OF BELGRADE TECHNICAL FACULTY VJ 12, 19210 BOR, SERBIA E-mail address: darkosun@open.telekom.rs, KOCEV DARKO , RAKOCEVIC VLADIMIR ,   DEPARTMENT OF MATHEMATICS FACULTY OF SCIENCES AND MATHEMATICS UNIVERSITY OF NIS 18000 NIS , SERBIA E-mail address: vrakoc@sbb.rs
Published: April 2021

In 1980. Fisher in [Fisher, B., Results on common fixed points on complete metric spaces, Glasgow Math. J., 21 (1980), 165–167] proved very interesting fixed point result for the pair of maps. In 1996. Kada, Suzuki and Takahashi introduced and studied the concept of w–distance in fixed point theory. In this paper, we generalize Fisher’s result for pair of mappings on metric space to complete metric space with w–distance. The obtained results do not require the continuity of maps, but more relaxing condition (C; k). As a corollary we obtain a result of Chatterjea.