bluuebunny/crossref_metadata_2025 huggingface dataset:
Curriculum for Citizenship and Sustainability
Authors: Mousena Eleni , Sidiropoulou Trifeni , Sidiropoulou Maretta
Published: April 2022

Citizenship, as the making of citizens, is an empirical and intellectual educational process. The ability of citizens to understand the world and also their responsible and active attitude has to address the issue of sustainability in the 21st century, i.e., an environment that will continue to exist for the future generations of citizens. Sustainability has emerged as a contemporary political value, as both the destruction of the natural environment and the complex social problems of humanity are threatening the development and self-realisation of humans and posing limitations, an issue of concern to the academic community and political leaders. Active and responsible political attitudes are cultivated through educational experiences and curricula that are engaging and meaningful to students. This chapter analyses the concepts of citizenship and sustainability, refers to the Sustainable Development Goals (SDGs) as defined in a UN conference (Agenda 2030) and presents ways to promote sustainability in education as well as relevant research, with a focus on the natural environment. It is concluded that a 4Cs curriculum on citizenship and sustainability is grounded οn civic and political values, developed in the conceptual framework of critical pedagogy, methodologically operates the school as a civil society forum and needs competent teachers to implement it.
Assessment of the Heat Capacity by Thermodynamic Approach Based on Density Functional Theory Calculations
Authors: Chihaia Viorel , Alexiev Valentin , S. AlMatrouk Hasan
Published: April 2022

The theoretical aspects of the thermodynamic calculation of the Gibbs energy and heat capacity of a crystalline system within the frame of the Density Functional Theory (DFT) are introduced in the present chapter. Various approximations of phonon motion (harmonic, quasiharmonic, and anharmonic) and their effects on the thermodynamic properties are discussed. The theoretical basis of the thermodynamic approach of the heat capacity of crystals for given thermodynamic conditions is presented, having as example six polymorphs of the magnesium hydrides.
Adsorption of Chromium from an Aqueous Solution onto Chitosan Beads Modified with Sodium Dodecyl Sulfate (SDS)
Authors: Kano Naoki , Ming Zou , Eva Vanessa Anak David , Nabil Md Sari Muhammad
Published: April 2022

The goal of this research is to make chitosan beads that have been treated with sodium dodecyl sulfate (SDS) to remove chromium (Cr) from an aqueous solution effectively. The successful synthesis of the SDS-chitosan was proven through characterization, which were carried out using by scanning electron microscopy–energy dispersive X–ray spectroscopy (SEM-EDS), Fourier transform-infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). The adsorption of Cr on the SDS material was investigated by varying experimental conditions such as pH, contact time and adsorbent dosage. The maximum adsorption capacity of SDS-chitosan for Cr(III) was estimated to be 3.42 mg·g−1 and 3.23 mg·g−1 for Cr(VI). Based on the results of adsorption kinetics and isothermal models, the adsorption process conform to the pseudo-second-order and Langmuir isotherm models. This indicates that the adsorption of Cr on SDS-chitosan is mainly dominated by chemical adsorption and monolayer reaction. In addition, according to thermodynamic analyses, the adsorption of Cr is an endothermic reaction. These results show that the new adsorbent has obvious application prospect for removing Cr.
How Do Whales See?
Authors: Vecino Elena , Pereiro Xandra , Ruzafa Noelia , C. Sharma Sansar
Published: April 2022

The eyes of two whales Balaenoptera physalus and Baleoptera borealis were studied by our group. In this chapter, we present the anatomical, histological, immunohistochemical and ultrastructural studies of the eyes of both types of whales. Based on the results, we can conclude that at least in these two species, the whales are rod monochromat; their resolution is very limited due to the reduced number of retinal ganglion cells, some of which were giant size (more than 100 micrometers in diameter). The excellent representation of melanopsinic positive retinal ganglion cells suggests an adaptation to the dim light as well as involvement in the circadian rhythms. The large cavernous body located in the back of the eye may provide a mechanism that allows them to move the eye forward and backwords; this may facilitate focusing and provide protection from cold deep-sea temperatures.
reflexão butleriana acerca do sujeito do ensino de filosofia
Authors: Sial Neto Albérico Araújo , Santos Reginaldo Clecio dos
Published: April 2022

O presente trabalho tem por objetivo dissertar sobre a noção de “formação para a cidadania”, entendida como uma das finalidades, segundo alguns documentos oficiais, do ensino de Filosofia no Educação Básica, à luz da noção de “enquadramento” elaborada pela filósofa Judith Butler. O enquadramento, a partir da conceituação da filósofa, está estritamente relacionado com a noção de operações de poder. Assim, os esquemas de reconhecimento e inteligibilidade de alguém são entendidos como valorações sociais que permitem a intelecção de alguns sujeitos em detrimento de outros. Com isso, levando em conta a argumentação da filósofa, pretende-se mostrar que o sujeito formado pela filosofia para a cidadania não passa de um sujeito subalterno às valorações sociais. Entretanto, ao que tudo indica, não são todos os sujeitos que estão aptos ao vir a ser cidadão, pois nem todos são reconhecidos como vida. Esse fenômeno da não universalidade do reconhecimento revela os mecanismos nos quais uma vida é produzida.
Comparison between radiographic and ultrasound angle measurements in the assessment of idiopathic scoliosis
Authors: Pjanić Samra , Bojinović-Rodić Dragana
Published: April 2022

Introduction. Radiological assessment is still being considered a golden standard when it comes to detection, follow-up and treatment of idiopathic scoliosis. However, it has universally been proven that radiation is cumulative and that it has oncogenic effects. For this reason, nowadays it is becoming increasingly popular to perform spinal ultrasounds using the Scolioscan® device. Relevant research has shown diagnostic potential of the device and its application in the assessment and monitoring of idiopathic scoliosis. The aim of our study has been to compare angle measurements in ultrasound and radiological spinal images and to determine the role of ultrasound in the assessment process and follow-up of patients with idiopathic scoliosis. Methods. This cross-sectional study has been conducted on a sample of 172 patients. Its participants are boys and girls, patients of the Team for Scoliosis that operates within the Department for Habilitation and Rehabilitation of Children in the Institute for Physical Medicine and Rehabilitation ''Dr Miroslav Zotović'', Banja Luka, the Republic of Srpska. Radiography and ultrasound of the spine have been performed on every patient on the same day. Three specially trained operators administrated the ultrasound scanning, while four raters (i.e. doctors) measured the radiographic Cobb angle and the ultrasound Scolio angle. Patients have been divided into groups according to gender, curve location and curve severity. Results. In general, ultrasound angles are shown to be smaller compared to Cobb angles, which has been confirmed in previous studies as well. The mean difference between Cobb and Scolio angle is statistically, but not clinically significant (3.62±4.39°, p<0.001). There is a statistically significant good positive correlation between the Cobb and the Scolio angle (r=0.675, p<0.001). According to groups, our results indicate a better correlation in the girls group (r=0.688, p<0.001) as opposed to the boys group (r=0.632, p<0.001). The same holds true for the thoracic group (r=0.736, p<0.001), compared to the (thoraco) lumbar group (r=0.654, p<0,001). A stronger correlation can also be seen in the group with a Cobb angle that is equal to or higher than 20° (r=0.518, p<0.05) than in the group with a Cobb angle lower than 20° (r=0.462, p<0.001). Conclusion. The results of our study confirmed a good validity of the ultrasound method using the Scolioscan® device, compared to conventional radiography, taking into account clinically insignificant differences in angle measurements. Using only B-mode ultrasound images - with no additional software analysis, nor 3D reconstruction of spinal deformities - proved to be sufficient for a follow-up of scoliosis, with respect to other parameters, such as clinical assessment, back surface topography, etc.
Seroprevalence of SARS-CoV-2 virus infection in employees in the health insurance sector
Authors: Spaić Dragan , Mandić Anđela
Published: April 2022

Introduction. Serological testing for SARS-CoV-2 virus infection is a valuable method of estimating the extent of COVID-19 disease prevalence. The study aims to assess the seroprevalence of SARS-CoV-2 virus infection in a specific group of respondents employed in the health insurance sector, to determine the ratio of symptomatic and asymptomatic cases, as well as to examine susceptibility to COVID-19 in relation to the ABO blood group system. Methods. This research was conducted among 150 randomly selected employees from the health insurance sector of the Republic of Srpska. All respondents completed the survey, voluntary consent to participate, and had a blood sample taken. Serum samples were tested for the presence of SARS-CoV-2 specific IgG antibodies. Results. The seroprevalence of SARS-CoV-2 virus infection was 70.7%. Out of the 100 seropositive respondents, 48% had the presence of a symptom of COVID-19, while 52% had no symptoms of the disease in the period from 1 March 1 2020 until the day of testing. Examining the association between ABO blood group system and seropositivity in our study, we found that the highest seroprevalence of SARS-CoV-2 IgG antibodies among respondents was in blood group B (83.3%), followed by blood group AB (80.0%) and blood group A (75.0%), while the lowest seroprevalence was among respondents with blood group O (54.1%). Conclusion. Among employees in the health insurance sector, SARSCoV-2 seroprevalence of 70.7% was registered. Among respondents with a positive serological result on IgG, 52% were asymptomatic. The seroprevalence of SARS-CoV-2 virus infection is the lowest among subjects with blood group O.
Strategije učenja darovitih kao faktor uspeha u učenju stranog jezika struke
Authors: Gojkov-Rajić Aleksandra , Šafranj Jelisaveta , Prtljaga Jelena
Published: April 2022

Theoretical context of the paper refers to Sternberg's Theory of Mental Self-Government and Deci's Theory of Self-Regulation. The method of systematic non-experimental observation was used. The research aim was to find out which learning strategies are used by gifted students and what their impact is on learning outcomes in order to address the demands imposed upon the students to develop a whole range of foreign language learning strategies facilitating their independence in learning, i.e., allowing them to self-regulate their own language learning. The research is of exploratory character and quantitative approach was applied. Convenience sampling was used and the sample consisted of 200 students from universities in Novi Sad and Belgrade. The students with average mark above 9,70 are considered academically gifted (N=19). The following instruments were used: The test of knowledge of foreign languages for specific purposes designed for the purpose of the research; the Questionnaire GD - General data, the Inventory of strategies for foreign language learning (SILL) - modified version (German, English). The basic findings are as follows: 1) The differences found between the academically gifted and the rest of the students at the scales of different strategies do not suggest statistical significance, but the differences within proactive and experiential strategies are rather close to significant and point to the tendency of the gifted students to use these strategies to a greater extent than the rest of the students. 2) The level of foreign language acquisition correlates with the choice of learning strategies used by the gifted students, but the analysis of the latent groups and the analysis of the variance has confirmed the existence of the statistically significant differences between certain groups, suggesting that the latent profile (high application of proactive and experiential strategies) is associated with significantly higher test results, differentiating these students from others. In other words, the success in foreign language for specific purposes learning is related to the choice of employed learning strategies.
Strip i geoforenzika u nastavi engleskog jezika po CLIL metodi - stavovi studenata
Authors: Beko Lidija , Mićović Dragoslava
Published: April 2022

This paper has discussed the concept of integrating comic strips and geoforensics into CLIL English classes at university level and its potential and relevance to modern-day university education. Our assumption is that comic strips can greatly help to embrace geoforensics as an emerging interdisciplinary art that offers a whole new and previously unthought-of perspective to young geological engineers. As modern teaching is more demanding than that which relies entirely on the traditional pedagogical system, language teachers today, especially CLIL teachers, need to include as many different sources as possible in organizing teaching process. Motivation is, among other advantages, the reason why we think it is advisable to occasionally include comics in the learning process. At the end of this study, we conclude that the comic strips, despite their advantages, are not sufficiently analysed and represented in teaching. The research suggests that students recognize both linguistic, scientific, and aesthetic values of a comic strip, but are not sufficiently familiar with the possibility of including ethical aspects or logical reasoning in this new media of teaching. Raising the teacher's awareness of the need for introducing comics at all teaching levels of university study is yet to be analysed, and requires careful planning in order to be successfully achieved.
Practical application of six SIGMA methodology to reduce defects in a Pakistani manufacturing company
Authors: Khan Wassan , Hussain Hulio , Ali Gopang , Sarwar Umair , Akbar Ali , Kaka Shuaib
Published: April 2022

All over the world six sigma is being adopted as a quality improvement approach towards zero defects. Unfortunately, the adoption of six sigma methodology in manufacturing companies is very rare in developing countries due to various challenges. This study demonstrates the practical use of the six sigma Define, Measure, Analyze, Improve and Control (DMAIC) cycle by conducting a case study at a manufacturing company in Pakistan. The potential problem was the external leakage defect in the refrigerator during its production stage. The objective of this study was to improve the process by adopting six sigma DMAIC approach to identify and eliminate the root causes that produce defects in the final product. Project charter, Pie chart, Bar chart of faults, Suppliers Input Process Output (SIPOC), Voice of Customer (VOC) and flow process map were used to define the problem, its scope and process routing. Pareto chart was used to identify sub defects and sigma level was calculated for the existing process. Feed rate, capillary action of filler material, cleanliness, visual inspection and unsuitable heat input were the major causes of external leakage. Cause and effect matrix was used to rank the identified causes. Further, design of experiment (DoE) was performed to improve the process by conducting different alterations in the parameters. In order to control the process, failure mode and effect analysis (FMEA) sheet was prepared to sustain the process improvements. The FMEA control plan needed to be revised at specific time intervals to attain continuous process improvement. This six sigma DMAIC cycle produced a 30% overall reduction of external leakage defect and service call rate (SCR) was improved with lower complaints from customers.
An approximation to the inverse of left-sided truncated gaussian cumulative normal density function using Polya's model to generate random variates for simulation applications
Authors: Hamasha Mohammad , Ahmed Abdulaziz , Ali Haneen , Hamasha Sa'd , Aqlan Faisal
Published: April 2022

The Gaussian or normal distribution is vital in most areas of industrial engineering, including simulation. For example, the inverse of the Gaussian cumulative density function is used in all simulation software (e.g., ARENA, ProModel) to generate a group of random numbers that fit Gaussian distribution. It is also used to estimate the life expectancy of new devices. However, the Gaussian distribution that is truncated from the left side is not defined in any simulation software. Estimation of the expected life of used devices needs left-sided truncated Gaussian distribution. Additionally, very few works examine generating random numbers from left-sided truncated Gaussian distribution. A high accuracy mathematical-based approximation to the left-sided truncated Gaussian cumulative density function is proposed in the current work. Our approximation is built based on Polya's approximation of the Gaussian cumulative density function. The current model is beneficial to approximate the inverse of the left-sided truncated Gaussian cumulative density function to generate random variates, which is necessary for simulation applications.
Review models of sorption isotherms
Authors: Mitrevski Vangelče , Mitrevska Cvetanka , Trajčevski Ljupčo , Mitrevski Borče
Published: April 2022

Numerous mathematical models for approximation of sorption data of food and agriculture materials are available in the referent scientific and engineering literature. Depending on the number of parameters included in the model for approximation of moisture sorption data, the models may be one, two, three, four, five or more parametric. Also the sorption models may be included or not the temperature as a parameter into the equation. The objectives of the presented article was a review of one hundred seventy-two sorption no temperature dependent sorption isotherm models which used to for approximation equilibrium moisture data of food materials. For statistics evaluation of those models the equilibrium moisture data of quince were used. The value on coefficient of determination the root mean squared error, the mean relative deviation and graphical evaluation of the residual randomness were the main assessment criterions for statistical evaluation of the sorption isotherms model. Based on the performed statistical analysis it was concluded that the model of Popovski & Mitrevski i.e. M161 has the best statistical performances.
Escolinha de Arte de São Paulo: instantes de uma prática
Authors:   UNESP, Peterson Sidiney
Published: April 2022

Neste artigo busco apontar, entre os diferentes ‘instantes’2 observados do processo de ensino/aprendizagem/formação na Escolinha de Arte de São Paulo (EASP), algumas experiências pedagógicas com a finalidade de tecer (ou desfiar) algumas ideias sobre os posicionamentos metodológicos assumidos para o ensino e aprendizagem de arte na Escolinha de Arte de São Paulo. Para escrita, considero como fonte primária, o relatório de atividades da Escolinha3, documentos imagéticos da EASP4 e os depoimentos, contemporâneos, de Ana Mae Barbosa e Madalena Freire, arte/educadoras na EASP, Regina Stella B. Machado, Célia Cymbalista e Regina Gomes, então estagiárias na Escolinha e Betty Leirner, estudante matriculada na EASP.
Imagens Narradas: educação e vida em duas (e mais) ficções
Authors:   IA-UNESP, Bredariolli Rita Luciana Berti
Published: April 2022

Esse texto aborda os vínculos entre educação e vida, através de uma situação de ensino e aprendizagem de arte criada na intersecção de duas ficções: “Tendo uma experiência” de John Dewey e “Onde fica a casa de meu amigo” de Abbas Kiarostami.
Entrevista com Lucimar Bello - Entrevistadores: Fábio Wosniak e Luciana Finco Mendonça
Authors: Wosniak Fábio , Mendonça Luciana Finco
Published: April 2022

Entrevista com Lucimar Bello
STUDENT INDEPENDENT WORK MANAGEMENT TECHNOLOGY BASED ON QUALITY MANAGEMENT SYSTEM PRINCIPLES
Authors:   Ufa State Aviation Technical University, Gorbushina S.N. , Safina A.F.
Published: April 2022

The article considers the technology of managing the independent work of students at the university based on the process approach. The essence of the principles of the quality management system is revealed, in comparison with the concepts, principles, approaches to managing the educational process existing in pedagogical science, the components of the process of managing the independent work of students are identified and described, the decomposition of this process is given with specification for each subprocess of evaluation criteria.
NON-TRADITIONAL TECHNOLOGIES AND WAYS OF CULTIVATING PATRIOTISM, CIVIC CONSCIOUSNESS AND RESPECT OF HUMAN RIGHTS IN CADET CLASSES
Authors:   South Ural State Humanitarian Pedagogical University, Panin D.Yu.
Published: April 2022

The problem of cultivating patriotism and personal civic consciousness is updated. The features of the concepts of “civic consciousness” and “patriotism” are emphasized. Opinions of researchers on the essence of these concepts and respondents (cadets) enquiry results on the essence of patriotism and the practice oriented program of cultivating patriotism and civic consciousness in cadet classes “I-we-citizen” are presented. The principles of education and program realization are shown. Technologies of deliberation, workshops, project learning, health saving, cognitive creative actions technology of I.P. Ivanov, reflective and game technologies were singled out as most efficient.
THE SYSTEM OF CONTINUING EDUCATION AS A TOOL FOR DEVELOPING «HARD SKILLS» AND «SOFT SKILLS» FOR STUDENTS OF LAW SCHOOLS
Authors:   Ural Branch of the Russian State University of Justice, Pochivalova Zh.G.
Published: April 2022

The article raises the actual problem of development of continuing education on the basis of the law University. The author substantiates the prerequisites for changing the system of professional education for training specialists with a set of « hard skills «and» soft skills. The key features of the system of continuing education are highlighted. We consider a three-level model of the working environment that generates requirements for the level of training of a specialist in the field of law. The article presents the experience of implementing the system of continuing professional education of the Russian state University of justice. The author proves the necessity of continuing preofe4ssional education as a tool to form soft skills and hard skills that are the main resource at the labor market. The experiences of the efficiently organized system of continuing education at the Ural Branch of the Russian State University of Justice, providing graduates’ demand at all levels of professional working environment is presented.
THE STATUS OF THE GERMAN LANGUAGE IN MODERN UNIVERSITIES
Authors:   South Ural State University, Tsepel M.G.
Published: April 2022

In the modern world in the context of internationalization, the status of a foreign language is largely determined by its demand in the field of higher education and science. The main tasks of the university’s activities include the development of academic mobility of students and staff, the creation of joint educational programs with foreign universities, and the expansion of international research cooperation. The fulfillment of these tasks is impossible without knowledge of a foreign language. The German language with a once high status, which is one of the main European languages of culture and science, found itself in the era of globalization and internationalization in a difficult situation due to the predominance of English in the educational space of universities not only in Russia, but also in Germany. The author analyzed the cooperation of leading universities with scientific and educational organizations in Germany, made an overview of activities aimed at maintaining and developing the German language, contributing to raising its communicative status in the educational space of universities. The article substantiates the need to preserve the German language in the educational space, since Germany has rich scientific traditions, is open to Russian specialists in the field of education and science, and is a promising partner for Russian universities.
EDUCATIONAL MODEL OF “7 KEYS” SCHOOL
Authors:   International Institute of Design and Service, Popova N.A. , Barkova O.V. , Omelchenko E.A.
Published: April 2022

Educational model of “7 Keys” private general education school is discussed. “7 Keys” is full day school, where the teachres and children live a fairly long time period together. Adult resources are not only excellent knowledge of the subject taught and pedagogical excellence of the teacher, but also the values, interests and motivation of every adult included in the scholl educational activities. The teacher always translates these values via his/her pedagogical activities influencing the pupils voluntarily or not. Cultural an emotional exchange that goes on between the teachers and pupils from the first to the eleventh grade is important for us. Pupils spontaneously master thinking technologies, knowledge on the subjects and intersubject skills in this communications. Pupils gain a personal experience that help them to self-identify, make personal choice and develop their individual development trajectory. All new skill and, experiences are gained by by the dupils in the course of projecting.
Photoluminescence properties of CuPc/MoS2 van der Waals heterostructure
Authors: Kong Yu-Han , Wang Rong , Xu Ming-Sheng ,   State Key Laboratory of Silicon Materials, School of Micro-Nano Electronics, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China,   Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China
Published: April 2022

Among two-dimensional (2D) materials, transition metal chalcogenides (TMDs) have attracted much attention due to their unique photoelectric properties. On the other hand, organic molecules have the characteristics of flexibility, wide source, easy fabrication and low cost. The van der Waals heterostructure constructed by the combination of 2D TMDs and organic semiconductors has attracted enormous attention in recent years. When organic semiconductors combine with TMDs to form van der Waals heterostructure, the hybridization of organic molecules could improve the photoelectric properties and other properties by taking the advantages of these two materials, Therefore, the combination of organic semiconductor molecules and TMDs can provide a research platform for designing many basic physics and functional devices and interesting optoelectronic applications. In this work, CuPc/MoS2 van der Waals heterostructure is built, and its photoluminescence (PL) properties are investigated. It is observed that after introducing CuPc, a significant PL quenching phenomenon occurs in the heterostructure compared with the single layer MoS2 and pure CuPc only. After fitting the PL of CuPc/MoS2 heterostructure system and monolayer MoS2 only, the ratio of trion to neutral exciton is clearly increased in the heterostructure. Furthermore, it is found that two mid-gap states D1 and D2 related to the CuPc are introduced into the band gap of MoS2 by first principle calculation. Through the charge density analysis, we find that the D1 state originates from the sp2 bonding state of the C-C bond while the D2 state comes from the anti-bonding state of the N-Cu bond. Meanwhile, the valence band maximum (VBM) and conduction band minimum (CBM) of CuPc/MoS2 heterostructure are derived from the bonding and anti-bonding states of MoS2, respectively. The charge transfer occurs between the mid-gap states of CuPc and MoS2. However, owing to different positions of charge density distribution of CBM, D2, D1 and VBM, the charge pathway is dominated by non-radiation recombination, which cannot give new PL peak in heterostructure. However, this process reduces the number of carriers involved in the direct recombination of MoS2, which leads PL to quench in the heterostructure. This work would be applied to the manipulation of photoelectric characteristics and the design of TMD/organic-based photovoltaic applications.
Natural-gradient learning for spiking neurons
Authors: Kreutzer Elena , Senn Walter , Petrovici Mihai A
Published: April 2022

In many normative theories of synaptic plasticity, weight updates implicitly depend on the chosen parametrization of the weights. This problem relates, for example, to neuronal morphology: synapses which are functionally equivalent in terms of their impact on somatic firing can differ substantially in spine size due to their different positions along the dendritic tree. Classical theories based on Euclidean-gradient descent can easily lead to inconsistencies due to such parametrization dependence. The issues are solved in the framework of Riemannian geometry, in which we propose that plasticity instead follows natural-gradient descent. Under this hypothesis, we derive a synaptic learning rule for spiking neurons that couples functional efficiency with the explanation of several well-documented biological phenomena such as dendritic democracy, multiplicative scaling, and heterosynaptic plasticity. We therefore suggest that in its search for functional synaptic plasticity, evolution might have come up with its own version of natural-gradient descent.
Feature selection by integrating document frequency with genetic algorithm for Amharic news document classification
Authors: Endalie Demeke , Haile Getamesay , Taye Abebe Wondmagegn
Published: April 2022

Text classification is the process of categorizing documents based on their content into a predefined set of categories. Text classification algorithms typically represent documents as collections of words and it deals with a large number of features. The selection of appropriate features becomes important when the initial feature set is quite large. In this paper, we present a hybrid of document frequency (DF) and genetic algorithm (GA)-based feature selection method for Amharic text classification. We evaluate this feature selection method on Amharic news documents obtained from the Ethiopian News Agency (ENA). The number of categories used in this study is 13. Our experimental results showed that the proposed feature selection method outperformed other feature selection methods utilized for Amharic news document classification. Combining the proposed feature selection method with Extra Tree Classifier (ETC) improves classification accuracy. It improves classification accuracy up to 1% higher than the hybrid of DF, information gain (IG), chi-square (CHI), and principal component analysis (PCA), 2.47% greater than GA and 3.86% greater than a hybrid of DF, IG, and CHI.
Effect of steady-state aerobic exercise intensity and duration on the relationship between reserves of heart rate and oxygen uptake
Authors: Ferri Marini Carlo , Federici Ario , Skinner James S. , Piccoli Giovanni , Stocchi Vilberto , Zoffoli Luca , Correale Luca , Dell’Anna Stefano , Naldini Carlo Alberto , Vandoni Matteo , Lucertini Francesco
Published: April 2022

Background

The percentages of heart rate (%HRR) or oxygen uptake (%V̇O2R) reserve are used interchangeably for prescribing aerobic exercise intensity due to their assumed 1:1 relationship, although its validity is debated. This study aimed to assess if %HRR and %V̇O2R show a 1:1 relationship during steady-state exercise (SSE) and if exercise intensity and duration affect their relationship.

Methods

Eight physically active males (age 22.6 ± 1.2 years) were enrolled. Pre-exercise and maximal HR and V̇O2 were assessed on the first day. In the following 4 days, different SSEs were performed (running) combining the following randomly assigned durations and intensities: 15 min, 45 min, 60% HRR, 80% HRR. Post-exercise maximal HR and V̇O2 were assessed after each SSE. Using pre-exercise and post-exercise maximal values, the average HR and V̇O2 of the last 5 min of each SSE were converted into percentages of the reserves (%RES), which were computed in a 3-way RM-ANOVA (α = 0.05) to assess if they were affected by the prescription parameter (HRR or V̇O2R), exercise intensity (60% or 80% HRR), and duration (15 or 45 min).

Results

The %RES values were not affected by the prescription parameter (p = 0.056) or its interactions with intensity (p = 0.319) or duration and intensity (p = 0.117), while parameter and duration interaction was significant (p = 0.009). %HRRs and %V̇O2Rs did not differ in the 15-min SSEs (mean difference [MD] = 0.7 percentage points, p = 0.717), whereas %HRR was higher than %V̇O2R in the 45-min SSEs (MD = 6.7 percentage points, p = 0.009).

Conclusion

SSE duration affects the %HRR-%V̇O2R relationship, with %HRRs higher than %V̇O2Rs in SSEs of longer duration.
Excito-repellency of Myristica fragrans Houtt. and Curcuma longa L. extracts from Southern Thailand against Aedes aegypti (L.)
Authors: Bhoopong Phuangthip , Chareonviriyaphap Theeraphap , Sukkanon Chutipong
Published: April 2022

The development of local plant extracts as a mosquito repellent is environmentally safe, inexpensive, and easily accessible for residents. In this study, three extracts from two local plants, Myristica fragrans Houtt. (flesh and mace) and Curcuma longa L. (rhizome) from southern Thailand, were investigated for their inherent repellent activity using the excito-repellency (ER) assay system against insectary-colonized Aedes aegypti (L.) (Diptera: Culicidae). The escape responses of mosquitoes exposed to concentrations of 0.5% to 5.0% (w/v) were measured to determine the contact irritant and non-contact repellent properties of each extract. Both the flesh and mace extracts of M. fragrans had relatively limited contact irritants (28.1% and 34.6% escape) and non-contact repellent (16.7% and 18.3% escape) activities against Ae. aegypti, respectively. The C. longa rhizome extract produced higher escape responses in the non-contact (42.6% escape) and contact (41.4% escape) trials at concentrations of 5.0% and 1.0%, respectively. GC-MS analysis found diethyl malate (56.5%) and elemicin (11.7%) to be the main components of the flesh and mace extracts, respectively, while ar-turmerone (24.6%), β-turmerone (15.2%), α-turmerone (10.5%) were the primary constituents of the rhizome extract. Overall, our results indicate that both M. fragrans extracts primarily caused Ae. aegypti escape through contact irritation. For C. longa, lower concentrations (0.5% and 1.0%) exhibited contact irritancy, but higher concentrations (2.5% and 5.0%) exhibited non-contact repellency against Ae. aegypti. Although they had limited efficacy, further experiments (e.g., mixing with other plant-based compounds) could enhance the ER of both local plant extracts. Additional evaluation of these extracts against other mosquito species and the ER of their chemical components, either alone or in combination, would also be beneficial for the development of green repellents. Our findings emphasize the possibility of utilizing plant-based mosquito repellent as an alternative personal protection method for future mosquito control programs.
Bullying and Self-Concept among Senior High School Students
Authors: Ponce Ryan , Bayaras Perrik , Blanca Hya Marie , Gutierrez Vanessa , Horbino Vance Louie , Villaruel Jerome Vincent , Billote William Jo Se
Published: April 2022

Bullying takes many forms, serves different functions, and is manifested in different patterns of relationships. This study employed a descriptive research design that aimed to identify and describe the forms of bullying experienced by 32 senior high school students of Saint Dominic College of Batanes, Inc. and how their bullying experiences affect their self-concept. Inventory questionnaires were utilized to gather data. Using Mean Analysis, ANOVA One-Way Repeated Measures, and Pearson’s Correlation Coefficient, the following were revealed. Firstly, senior high school students often experienced Verbal, Psychological, and Social forms of bullying and seldom experienced Cyber and Physical forms of bullying. However, the more prevalent forms of bullying experienced by senior high school students were Verbal, Psychological, Social, and Cyber. Secondly, bullying and self-concept have a significant moderate negative correlation, suggesting a substantial and inverse relationship. Lastly, Physical Appearance, Conduct/Morality, and Peer Acceptance are the areas of self-concept often influenced by bullying among senior high school students. On the other hand, Scholastic Competence and Athletic Competence are the areas of self-concept seldom influenced by bullying among senior high school students. However, Physical Appearance, Conduct/Morality, and Peer Acceptance are the areas of self-concept more influenced by bullying among senior high school students.
La palabra en su figura y su belleza. Teología y literatura en Hans Urs von Balthasar
Authors:   Universidad Pontificia Comillas, España, Cordovilla Ángel
Published: April 2022

La literatura es una palabra bella, con ritmo y música, pronunciada desde la realidad singular de la existencia. Desde este punto de vista es siempre una “revelación”, un apocalipsis de la vida humana ante el carácter singular y definitivo de la existencia en el mundo. La teología, en diálogo con ella, no puede pretender encerrarse en un lenguaje científico-objetivo al estilo de las ciencias positivas. Según la teología balthasariana la relación entre teología y literatura no surge por la moda de la interdisciplinariedad de los saberes, sino por una necesidad intrínseca de su quehacer debido a la naturaleza de la revelación divina. Dios se ha expresado a sí mismo en una figura bella como es la persona de su Hijo, implicándose en un drama, y utilizando todos los recursos del lenguaje de la carne.
El carácter problemático de la religión. Aportes de Romano Guardini a una teología de la religión
Authors:   Pontificia Universidad Católica de Chile, Silva Joaquín
Published: April 2022

Resumen: El pensamiento del teólogo ítalo-alemán Romano Guardini cuenta entre los impulsos más importantes de la renovación teológica y eclesial que se desarrolló en torno al Concilio Vaticano II. Como sucede con la obra de todo gran pensador y pensadora, la recepción de sus ideas está condicionada por el tiempo, los lugares y las personas que las acogen e interpretan. En esta recepción -de ya más de 50 años- ha quedado demostrada la riqueza de su pensamiento, pero no se ha advertido respecto del talante crítico de su teología, especialmente en la consideración del fenómeno religioso. Este artículo busca ser un aporte a la recepción de este gran teólogo católico, precisamente destacando la hondura de su reflexión sobre el fenómeno religioso y, en particular, mostrando cómo su pensamiento constituye un aporte significativo para una reflexión crítica de la religión. A partir de una obra madura de Guardini, Religión y Revelación, publicada el año 1958, en este artículo se ofrecen algunas categorías fundamentales para comprender el acontecer de la religión, pero también para examinarla críticamente y, así, dar forma a una teología que contribuya a su purificación y renovación.
La noción de experiencia en la obra de Edith Stein y su aporte para la comprensión de la relación del ser humano y Dios
Authors:   Centro Estudios Interdisciplinarios Edith Stein. Pontificia Universidad Católica de Chile, Núñez Durán Cristián
Published: April 2022

Los autores de artículos aceptados en Teología y Vida conservan los derechos de propiedad intelectual sobre sus trabajos y otorgan a la revista los permisos de distribución y comunicación pública de los mismos, consintiendo que se publiquen bajo una licencia Creative Commons (BY-NC-ND) 4.0 Internacional, que se otorga por todo el plazo de protección de la obra y con un carácter no exclusivo. La única limitación para el autor es que sólo podrá otorgar licencias no exclusivas sobre su obra. Esta licencia no permite la generación de obras derivadas ni hacer un uso comercial de la obra original, es decir, sólo son posibles los usos y finalidad que no tengan carácter comercial. Se recomienda a los autores publicar su trabajo en Internet (por ejemplo en páginas institucionales o personales, repositorios, etc.) respetando las condiciones de esta licencia y citando debidamente la fuente original.
Tax Salience and Cyclical Asymmetry in Tax Rate Adjustments: Testing the Indirect Tax Hypothesis
Authors:   Hankuk University of Foreign Studies, Kwak Sunjoo , Shon Jongmin ,   Soongsil University
Published: April 2022

In this paper, we explore the hypothesis that politicians prefer using direct taxes with relatively high salience for tax cuts during booms, while they prefer using indirect taxes with relatively low salience for tax increases during recessions. Using a panel data set of U.S. states from 1992 to 2014, we analyzed how cyclical fluctuations in resource availability affect the statutory rates of five major state taxes: general sales tax, personal income tax, corporate income tax, and two excise taxes (gasoline and cigarette taxes). Our results suggest that cyclical improvements in resource availability during booms lead to reductions in personal income tax rates, whereas cyclical deteriorations in resource availability during recessions result in increases in general sales tax rates.
Inequality, Privatization, and Democratic Institutions in Developing Countries
Authors:   Georgetown University, Ceriani Lidia , Scabrosetti Simona ,   University of Pavia,   Università Bocconi, Scervini Francesco ,   University of Pavia
Published: April 2022

Privatization of state-owned enterprises in low- and middle-income countries is regarded as an indispensable first step for the consolidation of national accounts, the development of financial markets, and the improvement of firms’ efficiency. However, privatizations may also have a relevant distributional impact, particularly in developing countries, where proceedings from privatization may be a sizable resource for redistribution. This article is a first attempt to investigate the relationship between privatization and income inequality, focusing on the role of democratic institutions. We find that an increase in privatization proceeds is correlated with a reduction in income inequality in countries where representative political institutions are mature.
La necesaria reforma del sistema de transferencias a los municipios: elementos clave y simulación de resultados
Authors:   Universidad de Extremadura, Cordero José Manuel , Pedraja Francisco ,   Universidad de Extremadura, Galindo Fátima ,   Universidad de Extremadura
Published: April 2022

The Report of the Committee of Experts for the Review of the Local Financing System (2017) proposes replacing the current dual system of transfers with a single equalization system for all Spanish municipalities. The objective of this work is to discuss the suitability of the proposal and compare it with other less demanding alternatives based on distributive transfer formulas. To do this, we estimate the financial cost of each of these alternatives and of their distributive effects among municipalities according to their size and the type of system to which they belong.
Teaching Efficiency and Classroom Management Towards Learning Outcomes
Authors: Sorbeto Janeza Asenjo , Corpuz O. S. , Alcantara Matt Edison G.
Published: April 2022

Classroom management is one of the most daunting challenges that teachers face, particularly new teachers. The study aimed to determine the Teaching efficiency and classroom management of teachers towards academic and non - academic learning outcomes of students’ in public secondary school in the Municipality of Magpet Cotabato Philippines. It describes the level of teaching efficiency of teachers in terms of; preparation of daily lesson log; submission of required documents; knowledge of subject matter; community involvement and professional growth and development and the level of classroom management of teachers in terms of, classroom routine; classroom discipline; relationship to students; personal leadership and communication and interaction. Results revealed that the factors affecting teaching efficiency of teachers were much efficient in terms of preparation of daily lesson log; community involvement; professional growth and development; and submission of required documents. The classroom discipline found to be the best predictor of classroom management that influenced learning outcomes in terms of grades for academic and membership to organization for non-academic matters. The classroom routine has significantly influence on learning outcomes in terms of sports and literary musical. Thereby concluding that classroom management is an important factor promoting academic and non-academic outcomes for the students.
Effect of Zinc and Gypsum on Growth, Yield and Economics of Groundnut (Arachis hypogaea L.)
Authors: Aruna N. , Umesha C. , Meshram M. R.
Published: April 2022

The experiment entitled was “Effect of zinc and gypsum on growth and yield of Groundnut (Arachis hypogaea L.)” conducted during kharif, (2021) at crop research farm, Department of Agronomy, SHUATS, Prayagraj (U. P) on sandy loam soil. the experiment was laid out in Randomized Block Design it consist of 9 Treatments with 3 Replication comprising three levels of zinc (0.25%, 0.5%, 0.75%) and three levels of zinc (0.25%, 0.5%, 0.75%) and three levels gypsum (300 kg/ha, 400 kg/ha, 500 kg/ha) the significantly highest result showed in (Treatment 9) 0.75% zinc foliar spray + 500 kg/ha Gypsum) growth and yield attributing character viz., plant height (58.33 cm), nodules/plant (106.88), dry weight (39.3 g), pod/plant (19.3), kernel/pod (2.6), seed index (41.00), seed yield (2917.00 kg/ha), haulm yield (4453.3 kg/ha). The gross returns (1,25,431.00 INR/ha) net returns (83355.60 INR/ha) and B:C ratio (1.98) are also recorded numerically highest with the (Treatment 9) application of 0.75% Zinc foliar spray + 500 kg/ha gypsum.
A Preliminary In-silico Analysis and Molecular Docking of Active Compounds in Coriandrum sativum as Potential Drug Targets Against SARS-COV-2 Infection
Authors: Prabhu T. Arvind , Hariharan N.M , Premalatha K.E , Sujatha P. L. , Kalifathulla H.
Published: April 2022

A novel strain of coronavirus, namely, SARS-CoV-2 has already taken the lives of more than 2 million people worldwide, causing several socio-economic and political disturbances, affecting our daily life. There are no definite therapies available and research is still being conducted to identify and develop an effective antiviral drug leads against SARS-CoV-2. Therefore, there is an immediate need to identify and develop new or repurposed antiviral (anti-coronavirus) drug leads. The virus requires the main protease (Pdb ID:6WTT), a multifunctional protein involved in the processing and replication of the viral RNAs. This paper aims to screen potential phytochemical compounds of Coriandrum sativum against the viral main protease. In order to identify a novel potent inhibitor, we have performed docking studies on the SARS-CoV-2 main protease with the phytochemical compounds of Coriandrum sativum. Among studied compounds, Cosomosiin, Erucic acid, Rosemarinic, and Pimentel appear to be potential inhibitors of the SARS-CoV-2 main protease. When docked against the crystal structure of the main protease, these four compounds revealed Libdock scores of 141.40, 133.89, 143.89, and 148.60 respectively. However, all these identified phytochemical compounds need to be further validated by molecular dynamics and invitro lab experiments for clinical use only after appropriate trials.