bluuebunny/crossref_metadata_2025 huggingface dataset:
PARAMAGNETIC CENTERS IN GAMMA IRRADIATED (RaO)x(SiO2)y SAMPLES WITH ADSORBED WATER
Authors:   Institute of Radiation Problems, Mansimov Z.A.
Published: September 2022

The - irradiated 77K samples (RaO)x(SiO2)y with adsorbed water were studied using EPR spectroscopy, and EPR spectrum with g=2.0028 and hyperfine splitting constant A(H)=505.3 G belonging to hydrogen atoms was registered. EPR, presumably attributed to paramagnetic hole (≡Si-O)+ , electronic (≡Si-) - centers and products of their interaction with water molecules spectra was registered. It is assumed that the main part of atomic hydrogen was oxidized to the HO2 • radical, and some of the H• atoms participate in surface radiative hydrogenation reactions with the formation of hydrogen-containing radicals when irradiated samples were heated from 77 K to room temperature. It is also assumed that •OH radicals are formed on the surface of --irradiated at 77K (RaO)x(SiO2)y samples.
Infâncias e pandemia do coronavírus: sentimentos e percepções de meninas e meninos escolares
Authors: Souza Andrielle Sisneiro de , Truccolo Adriana Barni
Published: September 2022

A pandemia do coronavírus levou à interrupção da rotina nas escolas e ao isolamento e confinamento sociais de milhares de crianças, desvelando diferentes infâncias em diferentes contextos e culturas, aflorando vulnerabilidades e desigualdades, e impactando no desenvolvimento cognitivo, social e emocional da criança. Diante desse cenário elaborou-se a seguinte questão de pesquisa: Quais os principais sentimentos e percepções de crianças escolares sobre o distanciamento social durante a pandemia da COVID-19? Objetivou-se compreender como meninas e meninos, na faixa etária entre oito e doze anos, vivenciaram e perceberam o distanciamento social ampliado imposto pela pandemia do Coronavírus, no ano de 2020. Pesquisa com abordagem quantitativa transversal, realizada em 16 escolas da rede pública de ensino com 363 crianças, sendo 177 meninas (10,9 ± 1,18 anos), 182 meninos (10,9 ± 1,20 anos) e quatro crianças que não identificaram o gênero. Os dados foram coletados via questionário eletrônico, e a análise descritiva das variáveis qualitativas organizadas em gráficos e tabelas de frequências pontuais. O projeto foi aprovado pelo comitê de ética com registro CAAEE44380221.8.0000.8091. Os resultados mostraram que os sentimentos e emoções mais frequentes despertados na criança durante o período de distanciamento social ampliado foram: tristeza, nervosismo e chateação. As crianças referiram ter sentido falta da escola, em especial dos colegas, de estar em sala de aula com “todo mundo” e da professora, mencionando aprender mais indo para a escola do que estudando em casa. Ficar em casa, seguido de medo de pegar o vírus e o uso de máscara foram as situações que mais deixaram as crianças aborrecidas. Sair sem máscara, seguido de sair com os amigos e passear foram apontados como sendo o que as crianças gostavam de fazer antes da pandemia e que não podiam fazer no período de isolamento. Conclui-se que o isolamento trouxe profundas mudanças na rotina das crianças, afetando não somente os estudos, mas praticamente todos os aspectos de suas vidas.
Службове право України : підручник
Authors:   Національний університет «Одеська юридична академія», Біла-Тіунова Любов Романівна , Стець Олег Миколайович
Published: September 2022

Підручник «Службове право України» є одним із перших підручників в Україні, в якому охарактеризовано суспільні відносини державної служби у контексті їхньої галузевої приналежності. Його становлять Загальна та Особлива частини. У Загальній частині висвітлено питання щодо співвідношення публічної та державної служби, предмета і методу службового права, його структури, державно-службових правовідносин, службового законодавства, службових норм, характеристики відповідних правових інститутів (вступу на державну службу, її проходження і припинення, правового статусу державного службовця, управління державною службою, режиму державної служби, юридинчої відповідальності державних службовців). Особливу частину становлять правові інститути адміністративної, спеціалізованої та мілітаризованої служби. Підручник призначено для надання допомоги студентам, які вивчають дисципліни «Конституційне право України», «Адмінстративне право України», спеціальні курси «Публічна служба», «Державна служба». Може бути використаний слухачами Центру підготовки державних службовців та професійних суддів під час вивчення відповідних навчальних дисциплін освітньо-професійної програми підготовки магістрів із спеціальності «Державне управління та адміністрування» та аспірантами під час навчання за відповідними навчальними програмами. Розрахований на науковців, публічних службовців, практичних працівників державних органів та органів місцевого самоврядування.
Relational analysis of the impact of technological practices in youth´s human development. A study in mexican organizations
Authors:   Universidad Autónoma de Aguascalientes, Padilla de la Torre María Rebeca , González Sánchez Renato Francisco , Zermeño-Flores Ana-Isabel ,   Universidad de Colima
Published: September 2022

The purpose of this study was to validate a theoretical proposal to analyze the correlation between information and communication technology (ICT) practices in an organizational structure and their impact on achieving human development in youth. In this text, the authors review the theories of culture in organizations and the structural perspective of technology. Moreover, based on these, a theoretical model is proposed to guide the methodology used. This consisted of estimating a structural equation model applied to the database of a survey carried out in 2016 to 204 Mexican government and civil society organizations oriented to support young people's development. The findings showed that the variables institutional capacity, ICT practices for searching information and internal communication achieved a significant impact on their scope and capacity to attend the human development of youth population.
Models and good evaluative practices to detect impacts, risks and damages of artificial intelligence
Authors:   Universidad Autónoma de Nuevo León, Aguirre Sala Jorge Francisco
Published: September 2022

Starting from exemplifying and recognizing the impacts, risks and damages caused by some artificial intelligence systems, and under the argument that the ethics of artificial intelligence and its current legal framework are insufficient, the first objective of this paper is to analyze the models and evaluative practices of algorithmic impacts to astimate which are the most desirable. The second objective is to show what elements algorithmic impact assessments should have. The theoretical basis for the analysis of models, taken from Hacker (2018), starts from showing the discrimination due to lack of guarantees that the input data is representative, complete, and purged of biases, in particular historical bias coming from representations made by intermediaries. The design to discover the most desirable evaluation instrument establishes a screening among models and their respective inclusion of the elements present in the best practices at a global level. The analysis sought to review all algorithmic impact evaluations in the relevant literature at the years 2020 and 2021 to gather the most significant lessons of good evaluation practices. The results show the convenience of focusing on the risk model and six essential elements in evaluations. The conclusions suggest proposals to move towards quantitative expressions of qualitative aspects, while warning of the difficulties in building a standardized evaluation formula. It is proposed to establish four levels: neutral impacts, risks, reversible and irreversible damage, as well as four protection actions: risk prevention, mitigation, repair and prohibition.
Data structures and simulation algorithms for flow-shop scheduling with resource availability constraints
Authors: Fazekas Levente , Kulcsár Gyula
Published: September 2022

Flow-shop scheduling problems are classic examples of multi-resource and multi-operation optimization problems. This paper demonstrates our model and simulation for solving Flow-shop scheduling optimization problems with resource availability constraints to minimize makespan. Working hours, transfer times and setup times are taken into account. Working hours could be interpreted in two ways. In the first option, operations must fit into a single available time slot. In the second option, the simulation could cut operations across multiple time slots. We propose a simulation algorithm that accounts for both scenarios and could be used with any permutation-based exact, heuristic, or search algorithm.
Analysis of online depression forums and questionnaires
Authors: Agárdi Anita
Published: September 2022

This article investigates the analysis of online depression forums and questionnaires. The article analyses seven depression forums, two Hungarian and five international forum. Depression forum posts were analyzed based on keyword searches and readings from forum posts. 37 keywords were analyzed, the results of which are illustrated with diagrams. The most commonly used keyword is `help'. In addition, frequently used keywords include 'depressed', 'depression', 'anxiety', 'sleep', 'help', 'doctor', 'psychiatrist', 'sorry', 'thanks',' advice ',' work ',' anxiety '. Of the depressed questionnaires, 6 questionnaires were analyzed. Finally, some ontological models are presented that model the depression and its effects.
Consumers' Intention to Continue Using Cryptocurrency Mobile Wallets in Malaysia
Authors: Ghaisani Nabila Putri , Kannan Rathimala , Basbeth Firdaus
Published: September 2022

In Malaysia, over RM 800 million transactions were processed in one cryptocurrency platform. The central bank of Malaysia has made e-payment one of its top targets to execute a cashless payment system. However, an in-depth analysis of the literature shows a dearth of research focusing on the influencers of cryptocurrency mobile wallet acceptance, especially the intention to use them continuously. Therefore, this study uses the Post-Acceptance Model of IS Continuance to determine the elements influencing the continuance intention of cryptocurrency mobile wallets in Malaysia. This research also investigates the impact of perceived security, effort expectations, and social influence on the intention to continue the usage of cryptocurrency mobile wallets. The empirical evidence from 106 current cryptocurrency respondents shows that: (1) perceived security and satisfaction are significant factors of continuance intention, and (2) performance expectancy, effort expectancy, and social influence are insignificant factors of continuance intention. It reveals perceived security as one of the critical elements in continuance intention in the cryptocurrency field.
Modelo matemático para la predicción de la viscosidad de petróleo crudo mediano de campos productores del Estado Monagas, Venezuela
Authors: Marín Velásquez Tomás Darío
Published: September 2022

La viscosidad es una propiedad de los fluidos dependiente de la composición. Su predicción es importante en la simulación de redes de manejo y transporte del petróleo crudo. En esta investigación se desarrolló un modelo matemático que permite predecir la viscosidad de petróleos medianos en función a la temperatura, la gravedad API y el porcentaje de asfaltenos. Se midió la viscosidad a 27 muestras a través de la norma ASTM D2196 a cinco temperaturas y se obtuvo el porcentaje de asfaltenos mediante la norma ASTM D6560. Se establecieron dos modelos matemáticos mediante procedimientos estadísticos de regresión múltiple lineal y regresión múltiple no lineal, escogiéndose el mejor modelo basado en el coeficiente de determinación R2 y el error relativo promedio. El modelo seleccionado fue el no lineal múltiple con un R2 de 0,992 y un error de 3,44%
Sistema distribuido y sensible al contexto para el monitoreo de pacientes con Alzheimer
Authors: Serna Florez Mauricio , Giraldo Plaza Jorge Eliecer
Published: September 2022

En este artículo se presenta el desarrollo de un sistema distribuido y sensible al contexto para el monitoreo de pacientes con diagnóstico de Alzheimer. Se plantea un diseño arquitectónico alternativo a las soluciones de monitoreo existentes, tomando las principales ventajas de la sensibilidad al contexto y los sistemas distribuidos y con la ayuda de éstos, soportar el sistema de monitoreo propuesto. Como resultado se tiene un diseño guiado por herramientas, técnicas y tecnologías como microservicios, logs distribuidos y diseño guiado por dominio, entre otros, además de presentar un prototipo simple con las funcionalidades que se pueden implementar siguiendo este diseño.
Visual Field Parameters and Pupil Size Measured through and Compared between Colored Contact Lenses and Clear Contact Lenses: A Prospective Comparative Pilot Study in Asian Population
Authors: Thuangtong Atiporn , Chinkulkitnivat Bunpisuth , Kemahayung Rung
Published: September 2022

Objective: To compare visual field (VF) parameters and pupil size as measured through colored and clear contact lenses (CL) in Asian population.Materials and Methods: Demographic data and CL prescription data were recorded during the baseline visit. Visual acuity and autorefraction were evaluated while patients wore clear CL, followed by slit-lamp examination and intraocular pressure measurements after CL removal. During the second visit, subjects were given dark browncolored CL with their same prescription. Visual acuity and autorefraction were measured. Pupil size and VF tests were measured twice with the clear CL and the colored CL. Measurements through colored and clear CL were compared.Results: Twenty-one volunteers (mean age: 31 years) were recruited. Refractive error varied from 0.00 to -7.00 diopters. Mean horizontal meridian measured through clear and colored CL was 134.8±7.8° and 133.3±4.7°, respectively. Mean vertical meridian measured through clear and colored CL was 100.1±3.8° and 100.4±2.5°. Mean total VF area measured through clear and colored contact lenses was 9,890.9±822.8° and 9,882.7±528.1°. There was no significant difference between clear and colored CL groups for horizontal meridian, vertical meridian, total VF area, or pupil size.Conclusion: There was no significant difference in any evaluated parameters between clear and colored CL.
05. Variability and hybridisation in the introduced pond slider turtle Trachemys scripta in Romania
Authors: IFTIME ALEXANDRU
Published: September 2022

ABSTRACT - A qualitative survey of the chromatic and morphological variability of the pond slider turtle Trachemys scripta was undertaken in the parks of ten cities in Romania. Large variability was observed, melanistic individuals and intra-specific hybrids were found, and the characteristics of some specimens were such as to imply possible hybridisation with other species. The large morphological variability of the introduced populations of T. scripta indicates multiple geographical origins from the native range and very likely hybridisation. These factors contribute to a great diversity in the introduced populations and may influence their capacity for acclimatisation in the new range.
Extension of the unique interval of recovery of the initial phase of a signal of a three-channel two-frequency coherent radar
Authors: Hrabchak Z. , Kosovtsov Yu.
Published: September 2022

The article reveals the theoretical and practical provisions for ensuring the unambiguity of determining the initial phase of the radar signal, which, unlike the known ones, allows expanding the unambiguity interval of a multi-channel and multi-frequency coherent radar to tens of meters with radar sounding in the centimeter range with frequencies of the order of 10 GHz. Procedures have been developed to ensure the unambiguity of determining the initial phase of the radar signal by determining the phase difference behind different frequencies of the transmitting channels of a three-channel two-frequency station. A mathematical model is obtained for the formation of the phase difference behind different frequencies of the transmitting channels of a three-channel two-frequency station. The mathematical model makes it possible to find the coordinates of the projectile for the phase difference data for different frequencies of the station's transmitting channels. The procedures for restoring the total phase difference behind the known quadrature components of the signal of a three-channel two-frequency station are disclosed. Analytical dependencies for calculating precision values of projectile flight coordinates based on phase difference data for different frequencies of the transmitting channels of a three-channel two-frequency station have been developed and studies of the accuracy of their calculation have been carried out. To assess the accuracy of determining the coordinates of the flight of the projectile, a numerical simulation of the calculation of their absolute error for different values of the projectile flight speed and angle of throw was carried out. As reference values of projectile flight coordinates, the data obtained by solving the mathematical model of the spatial motion of the OF-540Zh projectile of the 152-mm self-propelled howitzer 2S3M were used. It is shown that the potential accuracy of calculating the projectile flight coordinates is based on the data of measuring the quadrature of the phase difference of radar signals of a coherent radar with continuous monochromatic radiation for different values of the flight speed and angle of the projectile is within (10-6/10-10) m.
Influence of the initial velocity of the projectile on the kinematics of the projectile
Authors: Tkachuk P. , Velychko L. , Voytovych M. , Sorokatyi M.
Published: September 2022

The work uses a mathematical model for determining the frontal air resistance to the movement of the projectile, which based on solving the inverse problem of dynamics. Knowing the flight range at certain angles of aiming given in the firing tables, the functional dependence of the force of the frontal air resistance to the movement of the projectile on its speed and other factors is determined, taking into account the effect on the projectile of its weight and Coriolis force.

It has been established that, depending on the aiming angle, the projectile speed during flight can combine stages of movement with supersonic,transonic, subsonic, decreasing or increasing speeds. Therefore, the functional dependence of the frontal drag force is determined for each stage separately.

 The influence of the initial velocity and the deviation from the nominal value for the OF-462ZH projectile fired from a 122-mm D-30 howitzer, charge is investigated. Depending on the aiming angle, the projectile speed during flight can combine stages of movement with supersonic,transonic, subsonic, decreasing or increasing speeds.

It was found that the displacement values of the coordinates of the zeroing point of the trajectory of the projectile, determined on the basis of the proposed mathematical model, are almost the same in modulus when the initial velocity deviates by +∆V0; the tabular values of the displacements of the trajectory zeroing point, in general, are large in magnitude from the theoretical; the greatest discrepancy between them is achieved at an aiming angle of 45o00’; determination of which of the displacement values, theoretical or tabular, are real, is possible during field tests.
Method of increasing the efficiency of the switch node of the information communication network for special purpose in the conditions of combat use
Authors: Volochiy B. , Kushyk A. , Salnyk Yu. , Onyshchenko V. , Каzаn P.
Published: September 2022

The peculiarity of the special purpose communication information network is that its functioning is influenced by the tactical situation. In particular, it determines the intensity of the flow of packets with information about the enemy's moving objects from reconnaissance and signaling complexes to the switching node, and from it to the control point and means of destruction, depending on the probable nature of enemy action. In combat applications, the information network operates simultaneously with fast and slow packet flows.

At the same time, the packet delay in the switching node should not exceed the allowable value. Excessive packet delay results in the loss of relevance of transmitted messages and, consequently, in the loss of intelligence data. The proposed method of eliminating excessive delay involves the formation of two queues of packets in the switching node. Withdrawal of service packages from two queues is carried out using a new adaptive procedure.

An adaptive switch has been introduced into the structure of the switching node, designed to withdraw packets from queues to the packet service system. When selecting a packet queue, the adaptive switch compares the number of service requests from each queue. The method assumes that the number of service requests from the fast packet flow queue determines the number of packets that are in the queue. The number of requests that are formed from the queue of slow-flow packets has two components: the number of real and the number of conditional requests. Actual applications take into account the number of packets in the queue.

Real requests take into account the number of packets in the queue. Conditional requests take into account the delay time, since for each missed cycle of the packet's withdrawal from the slow flow queue, the adaptive switch generates a conditional request. Therefore, the number of requests for a slow stream grows even without packets entering the queue. A comparative study of options for implementing the adaptive procedure has been carried out. The proposed method for eliminating excessive packet delay in the switching node provides an increase in the efficiency of the functioning of a special-purpose information network as a whole.
Promising directions for increasing reliability radio-electronic equipment based on physical diagnostics using information technologies
Authors: Hlukhov S. , Sakovych L. , Ryzhov Ye. , Babiy O. , Halosa A.
Published: September 2022

In modern economic conditions, the renewal of the fleet of radio-electronic equipment is carried out relatively slowly. The subsequent operation of complex objects of high-cost radio-electronic equipment with a standard operating life of 25-30 years becomes possible with the availability of high-quality diagnostic, metrological and information support, the use of which will allow to determine the technical condition of objects with high reliability and to predict the residual life.

Known methods for diagnosing typical replacement elements as components of electronic equipment blocks are based on comparing output reactions with reference ones, which makes it possible to determine their technical condition at the moment. This also causes the difficulty of performing the third function of technical diagnostics - forecasting the residual resource. These reasons lead to the development of diagnostic methods that will allow determining the technical condition of typical replacement elements, as well as making predictions with high reliability, which, in turn, dictated the need for forced testing of typical elements for reliability. The result of such tests was to obtain the dependencies of diagnostic parameters on the operating time, the comparison of which with those obtained during routine maintenance will allow solving the above problems. To improve the reliability of the diagnosis, it is proposed to combine diagnostic methods.

The article presents an overview of the possibilities of diagnostic support, mathematical models of physical diagnostics and forecasting of the technical condition, identifies the directions for further research and substantiates the feasibility of developing new solutions to improve the reliability of radio-electronic equipment.
Optimization of Holographic Imprinting Process for Metallic Glass using Thermoplastic Forming
Authors: Ryu Wook Ha , Ryu Chae Woo , Kim Kyung Jun , Kwak Min Kyung , Park Eun Soo
Published: September 2022

The thermoplastic forming (TPF) process of metallic glass (MG) is a unique and powerful method that cannot be performed using conventional crystalline alloys. Because the mechanical and thermal properties of MGs are more favorable with smaller sample sizes, TPF is particularly useful for microscale and nanoscale part molding and micro-patterning. One of the promising commercial MG applications that can take full advantage of these characteristics is hologram patterning. Holograms can be used to identify unique brands, using characteristics with patterns that are difficult to replicate. Their excellent aesthetic qualities can also greatly contribute to increased product value. In this study, we developed and performed a TPF process for actual holographic imprinting with Mg-based MGs, and further investigated the TPF processing window, covering a wide range of temperature and process time conditions through thermal analysis, with ultra-fast heating rates ranging from 100 to 25000 K/s using Flash-DSC. The results of this study serve as a practical guide for identifying the full range of TPF processing windows including conventional and ultrafast heating conditions for micro-scale and nanoscale molding of various MGs. Moreover, a methodology is proposed to identify the general TPF processing window (η<108Pa· s) and the ideal TPF processing window (η<104Pa· s) by estimating the viscosity (η) of the supercooled liquid. Accordingly, this study is expected to be utilized to optimize the TPF process of MGs and promote the commercialization of related industries.
Enhancing mechanical properties of Mg-Gd-Y-Zn alloys via microalloying with Ce and La
Authors: Zhang Zhaobin , Kim Jonghyun , Liao Hongxin , Kim Ki Buem , Choi Taekjib , Lee Taekyung , Pan Fusheng
Published: September 2022

This study investigated the microstructure and mechanical properties of Mg-1Gd-1Y-1Zn (at.%) alloys containing designed amounts of Ce or La. The Mg5(Gd,Zn) phase formed in the as-cast Mg-Gd-Y-Zn-Ce/La alloys and disappeared after a homogenization treatment at 500°C for 24 h. The addition of Ce and La resulted in the formation of Ce(Mg,Zn)12 and La(Mg,Zn)12 phases, respectively. Except for that, the Ce or La addition had no significant effect on the morphology, volume fraction, and type of the long-period stacking ordered (LPSO) phases in the Mg-Gd-Y-Zn alloy. The grain size decreased with increasing microalloying content because the heavy Ce and La atoms impeded atomic migration across the boundaries. The solute drag effect led to the formation of the rare earth texture in the extruded Mg-Gd-Y-Zn-Ce/La alloys, whose extent decreased with increasing microalloying content. The mechanical strength was improved by the addition of Ce or La at the sacrifice of ductility. In particular, La exhibited a stronger reinforcement ability than Ce when it was added to the Mg-Gd-Y-Zn alloys. Among the investigated chemical compositions, the Mg-1Gd-1Y-1Zn-0.3La alloy exhibited the highest strength because it had the finest grains, the highest volume fraction of the second phase, and the weakest texture intensity. Furthermore, the alloys showed an unusual yield asymmetry due to the difference in the deformation mode of the LPSO phase.
Why do parents of Autism Spectrum Disorder(ASD) choose pseudo-therapy?
Authors:   Korean Association For Persons With Autism, Kwon Jungmin
Published: September 2022

This grounded theory research aimed to determine the rationale of parents of children with autism spectrum disorder(ASD) for choosing pseudo-therapy. About 39 participants including parents, professionals, or persons with disabilities were recruited for this study.
The results revealed various internal and external factors. Internal factors included psychological factors (guilt, helplessness, shame, self-preservation, impatience, anxiety, fear, hope, etc.), personality factors (belief in alternative therapies, devotion, following others, etc.), knowledge factors (negative perception of disability, lack of information, belief in cure, blind belief on therapist, etc.), economic factors (affluence), and disability perception (negativity, abhorrence, perception of disability as a disease, etc.). External factors included disability characteristics (mild, morphology, no speech, etc.), family dynamics (only child, first child, grandparents, etc.), marketing and fake news (disability cure, emphasis on critical period, counseling, etc.), institutional factors (low quality), system factors (long waits, lack of public information, easy certification, etc.), and cultural factors (culture of hagwon). These factors interacted with each other and resulted in desperation, false hope, deification of therapist, and enhanced difficult in accepting the disability.
The Monopoly of Peace: Gang Criminality and Political Elections in El Salvador
Authors: Castro Eleno , Kotti Randy
Published: September 2022

Despite the growing body of qualitative evidence suggesting collusion between gangs and political parties in various parts of the world, little has been done to study quantitatively the extent to which criminal organization may affect political elections in such context. Using police data and voting results in El Salvador, we find that homicides in gang-controlled neighborhoods tend to decrease by 24 percent of the mean during electoral seasons. We also estimate that gang control is associated with a 2.75 percentage point increase in electoral participation. These effects are especially significant in the neighborhoods where political parties have a strong voting base. Consistent with the interviews we conducted, this suggests that parties negotiate with gangs to mobilize electoral participation in the areas where they are more likely to receive electoral support and thus increase their chances of winning.
A Comparative Analysis of National-Religious Configurations: Which religious traditions correlate with higher and lower nationalism?
Authors: Akturk Sener
Published: September 2022

Building on the typology and hypotheses I formulated in “Nationalism and Religion in Comparative Perspective” (Aktürk 2022), this paper is an attempt to provide a comparative analysis and a cross-national empirical baseline of the correlations between particular nationalisms and specific religious traditions and/or religiosity. The two data sets I utilize are International Social Survey Programme (2013) and World Values Survey (Wave 7, 2017-2020, and earlier waves in the absence of some countries in Wave 7). The ten countries I focus on are the countries that I formulated empirical predictions for in my earlier work based on my fourfold typology (Aktürk 2022, Table 2): Great Britain, Japan, Israel, India, Ireland, Turkey, United States, Lebanon, Mexico, and Ukraine. First, I ask whether there is a correlation between membership in the nationally dominant religious sectarian tradition and national pride. Second, I ask whether higher national pride is congruent with higher or lower religiosity.
Chemistry Teacher Trainees’ use of Molecular Models in Learning Spiro and Bicyclic Compounds
Authors:   Department of Chemistry Education, University of Education, Winneba, Winneba-Ghana, Quayson Claudia , Ankrah Kwarteng Twumasi ,   University of Education, Winneba, Koranteng Ernest ,   Department of Chemistry Education, University of Education, Winneba, Winneba-Ghana, Hanson Ruby ,   Department of Chemistry Education, University of Education, Winneba, Winneba-Ghana
Published: September 2022

The study diagnosed chemistry teacher trainees’ difficulties in naming and writing structures of spiro and bicyclic compounds. The case study design was conducted in a constructivist environment to enhance chemistry teacher trainees’ ability to construct, represent, and interpret the structural formulae of spiro and bicyclic compounds. Purposive sampling technique was employed to select 126 1st-year chemistry teacher trainees from University of Education, Winneba for the study. The results revealed that chemistry teacher trainees had difficulties in naming and writing structural formulae of spiro and bicyclic compounds. However, through the effective use of molecular model kits in teaching naming and writing structures of spiro and bicyclic compounds, these chemistry teacher trainees became conscious of IUPAC rules for naming and writing spiro and other cyclic compounds. A t-test conducted indicated that a statistical significance difference existed between students’ performance before the implementation of the intervention and after the intervention. It is recommended that chemistry teachers should adopt the use of molecular model kits in teaching concepts of organic nomenclature.
The dark side of crypto gaming guilds
Authors: Jirásek Michal
Published: September 2022

Crypto gaming guilds are an evolution of traditional gaming guilds, communities of players concentrated on mutual support. In the contrast to the scope of traditional guilds, crypto gaming guilds have been established as organizations focused on earning money. Crypto gaming guilds concentrate on players from developing countries, offering them a chance to earn income without the necessity to invest funds for playing play-to-earn games. The communication of these guilds is full of positive stories of people alleviated from poverty or raising through hierarchies of their guild. Yet this bright image has its dark side and crypto gaming guilds provide ample opportunities for criticism. While in the traditional gaming guilds players have a central role, in crypto gaming guilds they have become inferior compared to other stakeholders. The reason is that new stakeholder groups, investors and game studios, have risen to prominence as they bring in money to the guild. Given the fact that players often come from developing countries with low wages, this situation creates a potential for their exploitation. Yet even without exploitation, the content of their new jobs has characteristics very similar to infamous “bullshit jobs”, pointless and unnecessary employment. It remains open whether crypto gaming guilds will fulfill their publicly communicated promises or turn evil in the future. However, in both cases, they will face their dark side. And they will either overcome it or embrace it.
An epithelial-mesenchymal plasticity signature identifies two novel LncRNAs with the opposite regulation
Authors: Kumar Pranjal , Khadirnaikar Seema , Bhandari Nikita , Chatterjee Annesha , Shukla Sudhanshu
Published: September 2022

The epithelial to mesenchymal transition (EMT) is crucial for cancer progression and chemoresistance. EMT is a dynamic process with multiple phases that change cell migration and invasion activity. We used pan-cancer expression data to find 14-LncRNAs that had a high correlation with the EMT markers VIM, CDH1, FN1, SNAI1, and SNAI2. The expression of 14 EMT-associated LncRNA, which also showed high cancer specificity, was used to calculate the pan-cancer EMT score. The EMT score was then applied to the 32 cancer types to classify them as epithelial, epithelial-mesenchymal, mesenchymal-epithelial, or mesenchymal tumors. We discovered that the EMT score is a poor prognostic predictor and that as tumor mesenchymal nature increased, patient survival decreased. We also showed that the cell of origin did not influence the EMT nature of tumors. Pathway analysis employing protein expression data revealed that the PI3K pathway is the most crucial in determining the EMTness of tumors. Further, we divided CCLE-cell lines into EMT classes and discovered that mesenchymal cells, which exhibited higher PI3K pathway activation, were more sensitive to PI3K inhibitors than epithelial cells. We identified Linc01615 as a mesenchymal LncRNA whose expression significantly correlated with survival in several cancer types. We showed that Linc01615 is regulated by the TGFβ-STAT3 pathway in a feedback loop. Knockdown of Linc01615 inhibited cell proliferation and migration by regulating the PI3K pathway and mesenchymal markers. We also identified RP4-568C11.4 as an epithelial cancer marker. We showed that knocking down RP4-568C11.4 decreased cell growth but not migration. In addition, we discovered that ESR1 regulates RP4-5681C11.4 in breast cancer. Taken together, we have developed a pan-cancer EMT signature. Also, we found two new LncRNAs that have different effects on cancer development and EMT.
Single-tube isothermal label-free fluorescent sensor for pathogen detection based on genetic signatures
Authors: Reed Mark A. , Gerasimova Yulia V.
Published: September 2022

We report on a single-tube biosensor for real-time detection of bacterial pathogens with multiplex capabilities. The biosensor consists of two DNA probes, which bind to the complementary fragment of a bacterial RNA to form a three-way junction (3WJ) nucleic acid structure. One of the probes encodes a fluorescent light-up RNA aptamer under T7 promoter. It allows for generation of multiple aptamer copies due to elongation and transcription of the 3WJ structure in the presence of the complementary target. The aptamer coordinates and thereby enhances fluorescence of a cognate fluorogenic dye, allowing for fluorescent detection of the RNA target. Multiple aptamer copies can be produced from a single target-dependent 3WJ structure allowing for amplification and visual observation of the signal. The limit of detection depended on the assay time and was found to be 1.7 nM or 0.6 nM for 30-min or 60-min assay, respectively, when N-methylmesoporphyrin IX (NMM) was used as a fluorescent indicator. The sensor is excellent in analyzing folded RNA targets and differentiating between closely related sequences due to the multicomponent character of the target-interrogating probe. Response to unamplified samples of total bacterial RNA from Mycobacterium tuberculosis complex or Escherichia coli was observed with excellent selectivity within 30 min under isothermal conditions at 50°C in a one-tube one-step assay. Several bacterial species can be detected in multiplex by utilizing biosensors with the template strands encoding different light-up aptamers. The isothermal one-tube-one-step format of the assay and the possibility to monitor the signal visually makes it amenable to use in a point-of-care scenario.
Controlling the oxidation and wettability of liquid metal via femtosecond laser for high-resolution flexible electronics
Authors: Zhang Jingzhou , Zhang Chengjun , Li Haoyu , Cheng Yang , Yang Qing , Hou Xun , Chen Feng
Published: September 2022

Liquid metal-based electronic devices are attracting increasing attention owing to their excellent flexibility and high conductivity. However, a simple way to realize liquid metal electronics on a microscale without photolithography is still challenging. Herein, the wettability and adhesion of liquid metal are controlled by combining the stirring method, femtosecond laser microfabrication, and sacrificial layer assistant. The adhesive force of liquid metal is dramatically enhanced by adjusting its oxidation. The wetting area is limited to a micro-pattern by a femtosecond laser and sacrificial layer. On this basis, a high-resolution liquid metal printing method is proposed. The printing resolution can be controlled even less than 50 μm. The resultant liquid metal pattern is applied to electronic skin, which shows uniformity, flexibility, and stability. It is anticipated that this liquid metal printing method will hold great promise in the fields of flexible electronics.
Fast and efficient electrocatalytic oxidation of glucose triggered by Cu2O-CuO nanoparticles supported on carbon nanotubes
Authors: Wang Zhongting , Liu Yi , Cheng Yongxi , Men Yu-Long , Liu Peng , Zhang Lei , Dai Bin , Pan Yun-Xiang
Published: September 2022

Electrocatalytic glucose oxidation reaction (GOR) is the key to construct sophisticated devices for fast and accurately detecting trace glucose in blood and food. Herein, a noble-metal-free Cu/C-60 catalyst is fabricated by supporting Cu2O-CuO nanoparticles on carbon nanotubes through a novel discharge process. For GOR, Cu/C-60 shows a sensitivity as high as 532 μA mM−1 cm−2, a detection limit as low as 1 μM and a steady-state response time of only 5.5 s. Moreover, Cu/C-60 has outstanding stability and anti-interference ability to impurities. The synergistic effect of Cu2O-CuO could improve the adsorption and conversion of glucose, thus enhancing GOR performance. By using Cu/C-60, we fabricate a three-electrode chip. A portable and compact electrochemical system is constructed by connecting the three-electrode chip with Cu/C-60 to an integrated circuit board and a mobile phone for recording and displaying data. The portable and compact electrochemical system results in a GOR sensitivity of 501 μA mM−1 cm−2, which is close to the data measured on the bloated electrochemical workstation. The detection limit of the portable and compact electrochemical system in GOR is 50 μM. This is higher than those obtained on the bloated electrochemical workstation, but is much lower than the common blood glucose concentration of human body (>3 mM). This demonstrates the accuracy, reasonability and applicability of the portable and compact electrochemical system. The results of the present work are helpful for fabricating fast, efficient and portable devices for detecting trace amount of glucose in blood and food.
Measuring the impact of anonymization on real-world consolidated health datasets engineered for secondary research use: Experiments in the context of MODELHealth project
Authors: Pitoglou Stavros , Filntisi Arianna , Anastasiou Athanasios , Matsopoulos George K. , Koutsouris Dimitrios
Published: September 2022

Introduction

Electronic Health Records (EHRs) are essential data structures, enabling the sharing of valuable medical care information for a diverse patient population and being reused as input to predictive models for clinical research. However, issues such as the heterogeneity of EHR data and the potential compromisation of patient privacy inhibit the secondary use of EHR data in clinical research.

Objectives

This study aims to present the main elements of the MODELHealth project implementation and the evaluation method that was followed to assess the efficiency of its mechanism.

Methods

The MODELHealth project was implemented as an Extract-Transform-Load system that collects data from the hospital databases, performs harmonization to the HL7 FHIR standard and anonymization using the k-anonymity method, before loading the transformed data to a central repository. The integrity of the anonymization process was validated by developing a database query tool. The information loss occurring due to the anonymization was estimated with the metrics of generalized information loss, discernibility and average equivalence class size for various values of k.

Results

The average values of generalized information loss, discernibility and average equivalence class size obtained across all tested datasets and k values were 0.008473 ± 0.006216252886, 115,145,464.3 ± 79,724,196.11 and 12.1346 ± 6.76096647, correspondingly. The values of those metrics appear correlated with factors such as the k value and the dataset characteristics, as expected.

Conclusion

The experimental results of the study demonstrate that it is feasible to perform effective harmonization and anonymization on EHR data while preserving essential patient information.
Understanding users’ perspectives on mobile apps for anxiety management
Authors: Balaskas Andreas , Schueller Stephen M. , Cox Anna L. , Doherty Gavin
Published: September 2022

Anxiety disorders are the most common type of mental health problem. The potential of apps to improve mental health has led to an increase in the number of anxiety apps available. Even though anxiety apps hold the potential to enhance mental health care for individuals, there is relatively little knowledge concerning users’ perspectives. This mixed-methods study aims to understand the nature of user burden and engagement with mental health apps (MHapps) targeting anxiety management, in order to identify ways to improve the design of these apps. Users’ perspectives on these apps were gathered by analyzing 600 reviews from 5 apps on the app stores (Study 1), and conducting 15 interviews with app users (Study 2). The results shed light on several barriers to adoption and sustained use. Users appreciate apps that offer content variation, customizability, and good interface design, and often requested an enhanced, personalized experience to improve engagement. We propose addressing the specific app quality issues identified through human-centered design, more personalized content delivery, and by improving features for social and therapeutic support.
Automated mineralogy (SEM-EDS) approach to sandstone reservoir quality and diagenesis
Authors: Worden Richard H. , Utley James E. P.
Published: September 2022

Porosity and permeability define the reservoir quality of a sandstone. Porosity and permeability are controlled by primary sedimentary characteristics and subsequent diagenetic modification. Grain size, sorting, detrital mineralogy, and matrix content are defined at the point of deposition. Bioturbation, infiltration, continued alteration of reactive minerals and soft sediment deformation can occur soon after deposition and, together with the primary characteristics, these condition, or define, how a sediment will behave during subsequent burial. Diagenetic modifications include compaction, initially mechanical and then chemical, mineral growth and, in some cases, grain dissolution and development of secondary pores. Porosity and permeability typically decrease as diagenesis progresses. Scanning Electron Microscopy-Energy Dispersive Spectroscopy (SEM-EDS) approaches can be applied to study many aspects of sandstone diagenesis including detrital mineralogy, grain size, sorting, grain shape, grain angularity and matrix content. SEM-EDS is also useful for defining quantities and location in the pore network of cements that are mineralogically distinct from detrital grains (e.g., calcite, dolomite, siderite, or anhydrite). SEM-EDS can be useful for studying clay mineral cements, especially when they occur in patches bigger than 5–10 μm. In sandstones, SEM-EDS is not so useful when the cements are mineralogically identical to detrital grains (e.g., quartz cement in quartz sandstones) where additional signals such as cathodoluminescence (CL) may be required. Macro- and meso-pores can be quantified using SEM-EDS but, on its own, it cannot automatically measure micro-porosity as it is below the minimum 1 µm spatial resolution of the approach. Mechanical compaction, a key process that causes porosity-loss in sandstones, is not easily quantified using SEM-EDS. Nonetheless, together with additional routine techniques, SEM-EDS can be used to solve most problems associated with sandstone diagenesis and reservoir quality.