bluuebunny/crossref_metadata_2025 huggingface dataset:
Numerical simulation of cold emission in coaxial diode with magnetic isolation
Authors: Belov Alexandr A. , Loza Oleg T. , Lovetskiy Konstantin P. , Karnilovich Sergey P. , Sevastianov Leonid A.
Published: October 2022

Due to the emergence and active development of new areas of application of powerful and super-powerful microwave vacuum devices, interest in studying the behavior of ensembles of charged particles moving in the interaction space has increased. An example is an electron beam formed in a coaxial diode with magnetic isolation. Numerical simulation of emission in such a diode is traditionally carried out using particle-in-cell methods. They are based on the simultaneous calculation of the equations of motion of particles and the Maxwell’s equations for the electromagnetic field. In the present work, a new computational approach called the point macroparticle method is proposed. In it, the motion of particles is described by the equations of relativistic mechanics, and explicit expressions are written out for fields in a quasi-static approximation. Calculations of the formation of a relativistic electron beam in a coaxial diode with magnetic isolation are performed and a comparison is made with the known theoretical relations for the electron velocity in the beam and for the beam current. Excellent agreement of calculation results with theoretical formulas is obtained.
Application of the method of continued boundary conditions to the solution of the problems of wave diffraction on various types of scatterers with complex structure
Authors: Krysanov Dmitry V.
Published: October 2022

The article considers the application of the method of continued boundary conditions to the two-dimensional problem of diffraction of electromagnetic waves by a dielectric body with a cross section of complex geometry and to the problem of diffraction by a Janus sphere in the form of a permeable sphere partially covered by an absolutely soft or an absolutely rigid spherical screen. The results of calculating the scattering pattern for a large set of bodies of different geometry, including fractal-like scatterers, are obtained. It is illustrated that in the case of a smooth body boundary, the algorithm based on the Fredholm equations of the 1st kind makes it possible to obtain results with greater accuracy than for equations of the 2nd kind. The correctness of the method was confirmed by verifying the implementation of the optical theorem for various bodies and by comparing with the results of calculations obtained by other methods.
Rhetorical structure and persuasive features of advertising: An intercultural analysis of English and Arabic online advertisements
Authors: Khedri Mohsen , Hasan Eatidal , Kritsis Konstantinos
Published: October 2022

Nowadays, the bulk of e-commerce is carried out in English. At the same time, however, the emergence and growth of Arab e-commerce has attracted attention from e-commerce giants, such as AliBaba and Amazon. Acquiring a deeper understanding of culture-specific advertising practices is thus quickly becoming necessary for digital advertisers and marketers seeking to tap into both English- and Arabic-speaking consumer markets. Despite this, little has been written on online advertising discourse within the particular contexts. To address this, the present study reports on a pragmatic two-level rhetorical analysis of the macro-structure of the sub-genre of online advertisements in English and Arabic and focuses on the identification of the persuasive linguistic features employed to signal constituent moves. Drawing upon Swales’ move-step model of rhetorical analysis, the exploration of a comparable corpus of 100 online advertisements of skin care products per language introduced new layers in the rhetorical organisation of [online] advertisements. The results revealed that English and Arabic advertisements consisted of both common and culture-specific rhetorical moves. The persuasive strategies employed common lexico-grammatical features at syntactic, semantic, and discoursal level, albeit to a different extent. Overall, the results of this study illustrate that online advertisements of skin care products could be considered as a particular sub-genre with context-specific macro- and micro-structures. Through the investigation of the specific datasets, this study expands upon the existing analytical frameworks used for the study of advertising discourse and adds to the intercultural exploration of the rhetorical structures and persuasive strategies used in online advertisements.
Double or half reading, double or full meaning: Amphibological and anacoluthic syntax through the lens of Qur’an translators
Authors: Hassanein Hamada
Published: October 2022

The Qur’an abounds in multifaceted ambiguous and elliptical structures which sometimes attest its idiosyncratic rhetorical style and challenging formal correspondence and dynamic/functional equivalence between Arabic and English. Although previous translation studies on Qur’anic ambiguity and ellipsis are manifold, there is a paucity of past literature on amphibol(og)y and a dearth of previous research on anacoluthon in the Qur’an in particular. Therefore, the need for this study arises from the necessity to examine these two understudied syntactic phenomena, technically al-labs an-nahwi: (‘amphibology’) and fuqda:n at-tata:buc (‘anacoluthon’), through the lens of Qur’an translators and to assess the translational quality of transposing meaning duplicity and interpretive multiplicity from Qur’anic Arabic (in)to English. The specific objectives are to investigate how Qur’an translators resolved amphibolies while rendering verses superscripted by the interchangeable pause sign (∴ ∴) and to explore how they sequentialised anacolutha when translating anacoluthic verses marked by the elliptical sign (…). The study employs the qualitative contrastive method for a contrastive translational analysis of a typologically limited number of amphibolous and anacoluthic verses retrieved from the Qur’anic Arabic Corpus (QAC). Findings show that amphibology and anacoluthon are so challenging to Qur’an translators that there are remarkable variations in ambiguity resolution and anacoluthon sequentialisation. Qur’an translators act occasionally as explicitators, implicitators and neutralisers of its message and epitomise heterosubjectivity and asymmetricity in interpretative choices. The implications of these findings for Qur’an Translation Studies (QTS) highlight the importance of paratexts and epitexts for amphibological and anacoluthic syntax in translation. According to Genette (1997), paratexts and epitexts are thresholds of interpretation that add haunting subtexts to texts in translation. Subtexts are necessary to provide essential information or commentary on the translation of the original text.
Lingua-cultural strata of modern American social media: Precedent phenomena in anti-Trump discourse
Authors: Konstantinova Anna Aleksandrovna
Published: October 2022

Modern media discourse abounds in linguistic units with cultural value including precedent phenomena that fulfil different functions and are employed to achieve particular political goals. Multi-modal (creolized) media texts making use of precedent phenomena as efficient tools of encoding meaning are of special interest. The goal of the study is to identify the role of the precedent phenomena of the English lingua-culture in the production and organization of discourse in the politically engaged network segment of modern American media. The focus is on anti-Trump discourse. The material spans the period from June, 2019 to November, 2020 and comprises 250 sampled examples, mostly multi-modal texts, including Facebook and Twitter posts by anti-Trump communities, political cartoons and memes, and random instances of Internet communication. The research methods applied in this study were critical discourse analysis and multi-modal critical analysis complemented by lingua-cultural method, stylistic analysis, and sampling. The author systematizes the repertoire of the precedent phenomena of the “anti-Trump discourse”, singles out their classes and types, identifies the spheres-sources of the precedent phenomena, and describes their cognitive and discursive functions, as well as the conditions and mechanisms for the actualization of the precedent phenomena in media discourse (thematic repertoire, extralinguistic and linguistic discursive strategies). The study argues that precedent phenomena affect the production and organization of discourse and possess significant potential for influencing mass audiences and molding public opinion. The study concludes that the use of precedent phenomena was an effective vehicle of digital activism and helped to achieve the political goals of American opposition organizations in the 2019-2020 pre-election period.
A functional analysis of lexical bundles in the discussion sections of applied linguistics research articles: A cross-paradigm study
Authors: Richter Kenneth Geoffrey , Lotfi Gaskaree Behruz , Mirzai Milad
Published: October 2022

Lexical bundles, as “building blocks of discourse” (Biber Barbieri 2007: 263), vary across disciplines and genres. Mastery of lexical bundles signals professionalism and helps identify writers and speakers as members of specific discourse communities. Despite the contribution of lexical bundle research to our understanding of disciplinary variation, the constraints placed by the genre conventions of quantitative, qualitative, and mixed-methods approaches to research writing on the use of lexical bundles remain under-researched (Le Harrington 2015). This study aims to explore the extent to which quantitative, qualitative, and mixed methods research articles are similar or different with respect to the frequency and functional patterns of their lexical bundles. Towards answering this question, however tentatively, the present exploratory study reports on the extent to which lexical bundles function similarly or differently in the discussion sections of quantitative, qualitative, and mixed-methods research articles in the field of applied linguistics. A corpus-based analysis of discussion sections in 150 research articles culled from ten highly rated international journals in the field of applied linguistics suggest that at the level of discussion sections, different methodological paradigms are characterized by different functional uses of lexical bundles. These lexical bundles are sufficiently formulaic that it can be argued that they constrain writers’ language preferences. These findings may be of interest to applied linguists, second language educators and advanced learners of academic English.
Review of Seongha Rhee. 2021. Linguistic Forms at the Border of Lexis and Grammar: Grammaticalizaton of Adpositions across Languages. Seoul, Global Contents Publisher. ISBN 979-11-5852-358-9
Authors: Sunhee Yae
Published: October 2022

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A semiotic portrait of a big Chinese city
Authors: Leontovich Olga Arkad'evna , Kotelnikova Nadezhda Nikolaevna
Published: October 2022

Urban communication studies is a growing field of research aiming to reveal the regularities of human interaction in an urban context. The goal of the present study is to examine the semiotics of a big Chinese city as a complex communicative system and its effect on the social development of urban community. The material includes over 700 units (toponyms, street signs, advertisements, memorials, local foods and souvenirs, mass media, etc.) mostly collected in Tianjin, China’s fourth biggest city with a population of almost 14 million people. The research methodology is based on critical discourse analysis, ethnographic and semiotic methods, and narrative analysis. The study reveals the structure of communication in a big Chinese city and the integration of language into the city landscape. It indicates that urban historical memories are manifested in the form of memorials, symbols, historic and contemporary narratives. The physical context is associated with names of streets and other topological objects. Verbal and visual semiotic signs are used to ensure people’s psychological and physical safety. Social advertising predominantly deals with the propaganda of Chinese governmental policy, traditional values and ‘civilized behaviour’. Chinese urban subcultures, such as ‘ant tribe, ‘pendulums’, ‘shamate’, etc., reflect new social realities. Food and foodways are defined by cultural values and different aspects of social identity. The image of a big Chinese city is also affected by globalization tendencies and the COVID-19 pandemic. The research framework presented in the study provides an opportunity to show a wide panorama of modern urban life. It can be extrapolated to the investigation of other big cities and their linguistic landscapes.
Conditioned Medium of Induced Mesenchymal Stem Cells as an Activator of Differentiation in The Osteogenic Direction
Authors: S.V Nadezhdin , V.S Belyaeva , N.A Nadezhdina , L.A Pokrovskaya , V.I Shutov , S.V Volobueva , D.V Maklakov , M.V Pokrovskii
Published: October 2022

In the prevailing era, the need for new biologically active substances of peptide nature and their therapeutic impacts are of great interest of the contemporary pharmacology. Hence, this study intends to assess the osteoinductive potential of the conditioned medium concentrate on native mesenchymal stem cells. To gratify the study’s aim, this study was carried out on a culture of rat mesenchymal stem cells. To stimulate the differentiation of Mesenchymal stem cells in the osteogenic direction, this study used a complete nutrient medium containing dexamethasone, ascorbic acid, sodium ß -glycerophosphate in the concentrations recommended in the guidelines. Subsequently, the resulting concentrate sample was examined using HPLC-MS / MS mass, spectrometric analysis. Part of the previously obtained concentrate of the conditioned medium was used, to assess the proliferation and differentiation of rat Mesenchymal stem cells in the osteogenic direction by staining for alkaline phosphatase. Given the results of the study, it can be concluded that that most of the identified proteins of the conditioned medium concentrate belong to the group of proteins regulating cellular processes, and groups of proteins were also, found that relate to the organization of the extracellular structure, the processes of cell development, or are directly responsible for the differentiation of Mesenchymal stem cells in the osteogenic direction. Along with this, the concentrate of the conditioned medium does not affect the proliferation rate of Mesenchymal stem cells. Thus, the resulting concentrate of the conditioned medium, can be further used, for the development of therapeutic preparations with osteoinductive and regenerative potential.
The Role Of Fibrosis And Immune Inflammation In Depression In Patients With Ischemic Stroke
Authors: A. Osipova Olga , V. Gosteva Elena , I. Kluishnikov Nikolai , V. Kaliuzhnaya Elena , A. Shabalin Alexey
Published: October 2022

Nowadays, Stroke is regarded as the second major cause of death and the third major cause of morbidity globally. The ischemic stroke (IS) is among the most fatal kind of strokes. Thus, due to the importance of this subject, this article aims to analyze the role of fibrosis markers (matrix metalloproteinase-9, tissue inhibitor of matrix metalloproteinases-1), cytokines (tumor necrosis factor-α, interferon-γ, monocytic chemoattractant protein-1) in the development of post-stroke depression in elderly patients with arterial hypertension (AH). To that end, the study included 114 elderly patients with the first acute ischemic stroke; the average age of the patients was 68 ± 7 years. The control group consisted of 20 older people without hypertension and a history of stroke. The level of matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of matrix metalloproteinases-1 (TIMP-1) was determined by ELISA (ELISA Kit, USA); the level of tumor necrosis factor-α (TNF-α), interferon-γ (INF-γ), monocytic chemoattractant protein-1 (MCP-1) - JSC "Vector-Best", Russia. After 3 months of observation of patients, post-stroke depression (PD) developed in 50 people. (43.8%). Patients who developed PD were significantly older (9.4%, p <0.05), a higher body mass index by 12.2% (p <0.05), a glycemic level by 16.1% (p <0, 05), triglycerides by 14.0% (p <0.05), LDL by 12.8% (p <0.05) than in patients without depression. Patients with ischemic stroke and PD had higher levels of cytokines - TNF-α by 23.8% (p <0.01), INF-γ by 17.5% (p <0.01), MCP-1 by 17, 6% (p <0.01), the level of MMP-9 was higher by 15.3% (p <0.05), TIMP-1 - by 11.4% (p <0.05). Thus, in elderly patients with hypertension with ischemic stroke, the level of fibrosis and inflammation markers may have a prognostic value in developing post-stroke depression. Hence, this article could greatly contribute to the alleviation of depression in patients with ischemic stroke.
Chronic Cerebral Ischaemia Stages I-Ii of the Disease: Immune and Metabolic Disorders
Authors: Aleksandrovna Shulginova Anastasiya , Ekaterina Sergeevna Litvinova , Olga Nikolaevna Bushmina , Tarasovich Dudka Viktor
Published: October 2022

Due to the increase in average-expectancy life in most developed countries and the environmental deterioration, there has been an increase in cerebrovascular and neurodegenerative diseases. Hence, this study attempts to analyze the chronic Cerebral Ischaemia Stages I-Ii of the disease, immune and metabolic disorders. To fulfil the study’s aim, seventy-five patients of the neurological department of “Kursk Regional Clinical Hospital” suffering from CCI in presence of hypertension, where 32 patients were with the stage I (1st main group) and 43 - with the stage II (2nd main group) at the age of 50 ± 5 years old are examined. In patients with chronic cerebral ischemia (CCI) stages I and II in presence of hypertension, among the 28 studied parameters of the immune and metabolic status of the blood plasma in addition to the content of the C4 component and the complement factor H inhibitor, 92,9% of the indicators were changed from the values of healthy donors at the start of treatment, in the patients with both stages of the disease 73,1% of these parameters turned out to be the same in magnitude and direction of changes, and 26,9% were identical in direction. The data obtained indicate the presence of immune inflammation, oxidative stress, endothelial dysfunction, and activation of lipid peroxidation in patients with CCI. The performed standard pharmacotherapy did not normalize 61,5% of the studied laboratory immune and metabolic indicators changed prior to the treatment in patients with CCI stage I and 76,9% of those with stage II, which, in its turn, makes necessary the correction of immunometabolic disorders at an early stage of the disease, studies of various combinations of preparations with antioxidant, nootropic, metabolic action in complex pharmacotherapy, and the introduction of immunomodulators into the accepted therapeutic regimens are necessary as well.
The Relationship between Perceived Organisational Support and Creative Performance of Employees: A Study from the Public Sector in Syria
Authors: Mohamad Saleh Wassim , Haidar Issam Mahmoud
Published: October 2022

The aim of this study is to determine the relationship between perceived organisational support (POS) represented by the following dimensions: behaviour of leaders towards subordinates, contribution to decision-making, support and self-assurance among employees, and the creative performance of employees, as well as whether there is a difference in level of perception of organisational support according to demographic variables (sex, functional age, scientific qualification). The research sample consisted of all 138 employees of the Syrian Telecommunications and Post Regulatory Authority (SY-TPRA). Using the analytical descriptive method, a questionnaire was designed and distributed throughout the sample. The findings indicate that POS has a strong positive correlation with the creative performance of employees, and that there is no difference in employees’ level of perception of the organisational support depending on the considered demographic variables. As far as the researchers are aware, this research is the first of its kind to be carried out in the telecommunications sector in Syria. Practically, this research will help decision makers improve the creative performance of staff on the one hand, and to develop management practices that are properly perceived by employees on the other.
Characterising Crime Incidence in Mexico: A Hierarchical Linkage Clustering Analysis
Authors: Jiménez Preciado Ana Lorena , Ríos Cesar Gurrola
Published: October 2022

We aim to characterise the incidence and distribution of crime in 32 states of Mexico. A hierarchical grouping with average linkage is implemented with crime information from DataMéxico, segmented by state and type of crime from 2015 to 2020. Based on the proportional number of crimes over the population of each state, through the elbow method and the average linkage with a Cophenetic correlation coefficient, we validate the number of clusters. Subsequently, a principal component analysis (PCA) is performed to identify each state’s contribution to the clusters proposed. The main results reveal criminal activity can be characterised by three groups. Drug trafficking is the crime that leads the first group, which in turn generates subgroups of interrelated crimes, such as crimes against the family, sexual abuse and harassment, and falsehood, to name a few. These crimes are committed homogeneously in most of the states of the country. Correspondingly, domestic violence and theft lead clusters two and three, and present significant concentration levels since four states accumulate 62% and 55% of crime incidence respectively. The results also provide an overview of how a particular crime can trigger the presence of others.
Institutions and FDI: Impact Analysis by Countries’ Income Level
Authors: El Fakiri Ahlam , Cherkaoui Kenza
Published: October 2022

This paper scrutinises the relationship between foreign direct investment (FDI) and institutional quality using panel data for 44 high-, 39 upper middle-, 23 low- and 35 lower middle-income countries over the period 2000 to 2017. We revisit the relationship by using a composite institutional index of World Governance Indicators (WGI), constructed using principal component analysis (PCA). Further, we extend the analysis to estimate the impact of the different dimensions of WGI indicators on FDI flows, using the generalised methods of moments (GMM). Our empirical findings for developed countries suggest that the institutional index is a robust determinant of FDI inflows in high income countries, whereas it is not significant in upper-middle income countries. Dimensions, such as rule of law, regulatory quality and control of corruption are key determinants of FDI flows to high-income countries, whereas none of the dimensions is significant in upper middle-income countries. Findings for developing countries, specifically lower middle-income countries, indicate that the overall index as well as individual dimensions are insignificant because of the poor quality of institutional framework. Ceteris paribus, politically stable economies endowed with an efficient and a credible government and strong regulatory framework tend to attract FDI flows into low-income countries.
Artist-author in Action and Reflection
Authors: Mike Croft
Published: October 2022

Published as part of: Michael Croft, 'Artist-author in Action and Reflection' in 'Practices of Phenomenological and Artistic Research', (eds.) Alex Arteaga, Emma Cocker, Erika Goble, Juha Himanka, Phenomenology & Practice, Volume 17 (2022), No. 1, ISSN 1913-4711

https//journals.library.ualberta.ca/pandpr/index.php/pandpr/index
The complete mitochondrial genomes of two moths in the tribe Trichaeini (Lepidoptera: Crambidae) and the phylogenetic implications for Pyraloidea
Authors: Du Xicui , Tang Ci
Published: October 2022

The complete mitochondrial genomes of two Prophantis Warren, 1896
species in the tribe Trichaeini (Lepidoptera: Crambidae) were sequenced
using high-throughput sequencing technology. They were assembled and
annotated: the complete mitogenomes of P. octoguttalis and P. adusta
were 15,197 bp and 15,714 bp, respectively, and contain 13
protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes,
and an A + T-rich region. Their arrangement was consistent with the
first sequenced mitogenome of Lepidoptera, from Bombyx mori
(Bombycidae). The nucleotide composition was obviously AT-biased, and
all protein-coding genes, except for the cox1 gene (CGA), used ATN as
the start codon. Except for trnS1, which lacked the DHU arm, all tRNA
genes could fold into the clover-leaf structure. Phylogenetic trees of
Pyraloidea were reconstructed based on mitogenomic data using Maximum
likelihood (ML) and Bayesian inference (BI) analysis methods. The
results showed that Trichaeini formed a monophyletic group with high
branch support in Spilomelinae, sister to Nomophilini. In addition, the
phylogenetic relationships among subfamilies of Pyraloidea were
generally stable: (Galleriinae + ((Epipaschiinae + Pyralinae) +
Phycitinae)) + ((Pyraustinae + Spilomelinae) + ((Odontiinae +
Glaphyrinae) + CAMMSS clade)), although the affinities of some
subfamilies in the “CAMMSS clade” were still unresolved.
Mucormycosis in COVID Pandemic and the Challenge for Anesthesiology and Critical Care: A Case Report
Authors: Naushad Omar , Bashir Muzamil , Faiz Dawood , Deep Palak , Rathee Sonal , Sharma Aditya , Kumar Sumit
Published: October 2022

Mucormycosis is a rapidly progressing fungal infection caused by filamentous fungi in the Mucoraceae family and is frequently seen in diabetic and immune-compromised patients. Mucormycosis is categorized as rhino-cerebral, pulmonary, cutaneous, and gastrointestinal or disseminated, depending on organ involvement; the most common form is rhino-cerebral (39%). This form may be divided into subtypes based on which tissues are affected: rhino-nasal, rhino-orbital or rhino-orbito-cerebral.
Rhino-orbital infection begins when fungal spores are inhaled and invade the nasal mucosa, and sinusitis develops as the fungus spreads to the Para-nasal sinuses. Orbital involvement occurs when the infection invades the orbital wall from the Para-nasal sinuses. Symptoms may include pain, chemosis, vision loss, Ophthalmoplegia and proptosis. Ophthalmoplegia arises from infection of the muscles and orbital space or when the third, fourth and sixth cranial nerves are affected. Peripheral seventh cranial nerve paresis or paralysis and hypoesthesia of the face are often observed.
We came across a 51-year-old male with multiple co morbidities suffering from rhino-orbito-cerebral mucormycosis. We present his pre, peri, and post operative management by anesthesiology and critical care department of Subharti medical college Meerut Uttar Pradesh. India.
Scale of Life Skills Supporting Learning for Higher Education Students
Authors: Köksal Necla , Yakar Ali
Published: October 2022

In this study, a scale was developed in order to determine the levels of life skills supporting learning of university students. The study group consisted of 378 students from different faculties of Pamukkale and Muğla Sıtkı Koçman Universities. In the process of developing the scale, a literature review was conducted, a pool of items was constructed, expert opinions were sought, preliminary studies were carried out, first application, second application, validity and reliability analyses were carried out. As a result of the item analyses performed by using exploratory and confirmatory factor analyses, a total of 23 items remained in the scale. As a result of exploratory factor analysis, it was observed that the scale had one-dimensional structure related to life skills supporting learning. The scale items gathered under a single factor explained 43.94% of the total variance. As a result of the confirmatory factor analysis, item-factor loading values of the scale items were found to be ranging between .50 and .67. It was found that the differences between the means of the upper and lower 27% groups were significant. The Cronbach alpha internal consistency coefficient of the scale was found to be a=.94. It was concluded that these findings show that the scale is valid and reliable.
The Relationship between Research Assistants’ Social Loafing and Organizational Commitment
Authors: Ersöz Zeynep , Küçüksüleymanoğlu Rüyam
Published: October 2022

Organizational commitment and social loafing are important and interrelated concepts in working life. Employees who think that their performance will decrease and their effort will be lost, their work is not important and meaningful, prefer to hide in the crowd and socially loaf. It is crucial to reveal the exact nature of this relationship in terms of employee productivity, cooperation, competitiveness and inexhaustibility. Organizational commitment and social loafing are thought to have an important efficiency-, performance- and job satisfaction-related impact on the work outcomes of research assistants. This study aims at determining the relationship between social loafing and organizational commitment of research assistants, and finding out whether the levels of social loafing and organizational commitment differ significantly depending on the type of staff and length of service. The criterion sampling method, one of the purposeful sampling methods, was used for the sampling. The participants are 34 research assistants working in a faculty. Correlational survey model was used to investigate the relationship between the levels of organizational commitment and social loafing of research assistants. Personal Information Recognition Form, Organizational Commitment Scale, and Social Loafing Scale were used as the data collection tools. Pearson’s and Spearman’s correlation analyses, independent sample t-test, one-way analysis of variance and Kruskal-Wallis analysis were used in the analysis of the data. A significant and inverse relationship was found between affective commitment (as a sub-dimension of organizational commitment) and social loafing. No significant difference could be identified between the groups in social loafing and organizational commitment levels in terms of demographic variables.
Teaching and Learning Centers for Faculty Professional Development in Türkiye: Administrative and Organizational Structure
Authors: Elçi Alev
Published: October 2022

Globalization and the ongoing Covid-19 pandemic have disrupted the way we live, work, and learn, which has resulted in an inevitable digital shift and transformation in education. In addition to the need for lifelong learning, continuous self-improvement, and renewing knowledge, the current digital transformation requires academics to apply their pedagogical and technological skills on their teaching and learning to address the newly-emerging needs. This study aims to determine the demographics, administrative and organizational structures, and the activities of Teaching and Learning Centers that strive to contribute to the professional development of faculty members in Turkish higher education institutions. The data from the centers were collected in a three-step process and analyzed qualitatively. The findings revealed that most of the centers, other than the pioneer ones, were recently established and were affiliated with and supported by university senior management, where the center administrators undertake most of the workload. Therefore, ensuring faculty members' participation in professional development activities organized by these centers is important to increase their awareness of using technology as a tool in teaching.
Academic Promotion and Appointment Process in Higher Education since the Proclamation of the Turkish Republic
Authors: Demirbilek Mesut , Çetin Münevver
Published: October 2022

This study aims to examine the changes in the procedures and principles of obtaining academic titles in Turkish higher education from the proclamation of the new Republic, and the appointment of those who have these titles to academic positions. By applying the document analysis method, the changes in the law of universities, higher education laws, regulations for academic staff promotion and appointment, published in the Official Gazette since 1933, were examined. A total of twenty-two laws and regulations and the related changes were examined, which revealed that the highest number of changes were made in the titles and appointments of associate professors and professors (totally forty-eight) in the law of universities and higher education law. Nineteen changes were made regarding academic titles in the academic promotion and appointment regulations. To conclude, despite its long-established structure, Turkish higher education has made many significant and frequent changes to its academic title awarding and appointment procedures, primarily due to sociopolitical reasons.
Being a Student with Special Needs in Higher Education during the Covid-19 Pandemic: Experiences and Ways to Cope with Difficulties
Authors: Güçyeter Şule , Ayvazoğlu Nalan R. , Sardohan Yıldırım A. Emel
Published: October 2022

The transition of universities to the distance education system due to the Covid-19 pandemic has revealed the need to take measures to ensure the active participation of students in educational practices and to prevent their education from being adversely affected. If proper measures are not taken, students with special needs are among the groups with high probability of experiencing difficulties even in formal education. Therefore, in this study, the experiences of students with special needs as well as ways to cope with these difficulties during the Covid-19 pandemic were investigated. 56 students with special needs studying in various universities across Turkey participated in the cross-sectional study in which a survey questionnaire developed by the researchers was used. Descriptive statistics were used to analyze the data. The findings revealed that students mostly experienced difficulties regarding the devices used (41.07%) and internet access (33.93%). It was also determined that courses and exams were not adapted according to the students’ needs (39.29%), and students experienced difficulties in accessing the resources while preparing for the exams (57.14%). In addition, students also had difficulties in reaching the authorities from the university (28.57%) and reported that the announcements made by the disability services office were inadequate (25%). In dealing with the difficulties students either increased the limit of their internet or bought unlimited internet access packages (62.50%), and they also asked friends (69.64%) and student counselors (42.86%) for help. Although precautions were taken during the Covid-19 pandemic, students with special needs still experienced difficulties in accessing education at universities. For this reason, it is important to conduct comprehensive studies on the causes of the problems experienced to facilitate the educational accessibility for students with special needs and to find solutions for students with special needs to ensure that they actively continue their education.
Bibliometric Analysis of the Turkish Doctoral Dissertations: A Case Study of Economy, Law, Psychology, Political Science, and International Relations Disciplines
Authors: Aslan Aydın , Açıkgöz Ömer
Published: October 2022

This study aims to analyze the contributions of the doctoral dissertations completed in the disciplines of economy, law, psychology, political science, and international relations to the literature and practice through the citations to the articles extracted from these dissertations using bibliometric analysis. These disciplines were included in the present study as they were determined as the priority ones in the training of the human resources by the Turkish Council of Higher Education (CoHE). 88 dissertations were reached in the National Thesis Center database of CoHE in 2018 and subjected to document analysis. The published scientific studies based on these dissertations were primarily searched within authors’ websites, CoHE Academic, Web of Science, ScienceDirect, Education Resources Information Center, ResearchGate and Google Scholar. No data could be found for 61 dissertations out of 88 ones. The citations to the articles derived from 17 dissertations, which were searched in Google Scholar, ResearchGate, SCOPUS, SOBIAD and Web of Science databases were bibliometrically analyzed. Only 9 dissertations were cited. While the primary data were used in the dissertations completed in the discipline of psychology, the secondary data were mostly used in the other dissertations. These results indicate that the contribution of the dissertations to the literature and practice is quite limited. Thus, the researchers turned their attention to the contribution of the dissertations produced in other disciplines in the field of social sciences. Several suggestions (e.g. developing researchers’ research skills, studying priority research topics in the Turkish context) were also made to increase the contribution of the dissertations to the literature and practice.
The Relationship between Mushroom Management and Organizational Commitment in Research Assistants: A Study in the Field of Health Management
Authors: Meliş Günaltay Meliha , Işıkçelik Ferda , Durur Fatih
Published: October 2022

Mushroom management style is an approach that is based on the metaphor of mushroom cultivation, where employees are provided only with resources related to their jobs and no other information is shared. This management style affects employees in many ways such as performance, job satisfaction and organizational commitment. The aim of this study is to determine the level of exposure of research assistants to the mushroom management style in their institution and to examine the relationship between mushroom management perceptions and organizational commitment. The population of the study consists of 152 research assistants working in the health management department of public and foundation universities in Turkey. A questionnaire was used as the data collection tool, and the analyses were conducted on the data of 103 research assistants who completed and returned the questionnaires. Based on the findings, it was concluded that the mushroom management perceptions and organizational commitments of the research assistants in the health management department were at a moderate level. In addition, a weak negative relationship was found between their mushroom management scores and organizational commitment scores. Thus, it was concluded that the more positive mushroom management perceptions are, the lower the organizational commitment is. The findings of the study are important for determining the potential effects of mushroom management perceptions at universities.
Isolation of Distinct Lactobacillaceae spp. with Functional Characteristics from Traditional Sourdough Samples
Authors: İSPİRLİ Hümeyra , DERTLİ Enes
Published: October 2022

Lactic Acid Bacteria (LAB) were isolated from traditional sourdough samples, and functional properties of selected LAB species were determined. Five distinct strains Limosilactobacillus fermentum LR1, Lacticaseibacillus rhamnosus LR2, Levilactobacillus senmaizukei CE37, Lactiplantibacillus plantarum CE48 and Limosilactobacillus reuteri KD44A were identified following the genotypic discrimination of hundred isolates. Presence of bacteriocin genes in identified species was determined by PCR, and sourdough isolates have been shown to carry bacteriocin genes although they vary according to species. Exopolysaccharide (EPS) production tests showed that the amount of EPS production varies in different media and different incubation conditions. Antimicrobial effects of 5 different LAB species were determined against Bacillus cereus BC 6830, which cause rop problems, and other pathogen species and also molds isolated from bread. Amylolytic activities of isolates, which are important in terms of technological roles, were determined genotypically and phenotypically. Finally, the phytase and phosphatase activities of these species were studied. This study was aimed to unveil the functional sourdough LAB species to be used for industrial purposes.
Pb-Doped CuO Thin Films Synthetized by Sol-Gel Method
Authors: Tabli Dalila , Touka Nassim , Baddari Kamel , Selmi Nourddine
Published: October 2022

The physical properties of pure CuO and Pb doped CuO thin films, deposited on glass substrates by a sol-gel method, were investigated. Structural analysis revealed the polycrystalline nature of the pure CuO and Pb:CuO composite films with a monoclinic structure, the crystallite size decreased and ranged from 36.78 nm to around 21.5 nm. The SEM images of the CuO thin films showed that the Pb doping concentration affects the surface morphology of the Pb:CuO composites. The absorbance of the Pb:CuO composites is higher than that of the undoped CuO thin films. The optical band gap energies of undoped CuO and Pb doped CuO thin films were estimated to 1.9 (pure), 2.17(5%) and 2.74 (7%)eV, and found that the band gap energy (Eg) increases with the Pb concentration. This blue shift is due to the quantum confinement induced by the reduction in the size of the crystallites.
Effect of Chemical Composition of Boriding Agent on the Optimization of Surface Hardness and Layer Thickness on AISI 8620 Steel by Solid and Liquid Boriding Processes
Authors: Kul Mehmet , Yılmaz Yasin , Oskay Kürşad Oğuz , Kumruoğlu Levent Cenk
Published: October 2022

Surfaces of cam shafts made of AISI 8620 steels were hardened by boriding processes in both solid and liquid mediums. Various chemical agents were used to achieve boride layers on the surfaces of the cam shafts in these processes. It was aimed to examine effects of the chemical agents on microhardness and thickness of the boride layers obtained. It was concluded that a bath composition of 5% B4C-90% SiC-5% KBF4 was appropriate for the hardest and thickest boride layer achieved in the solid medium, and a composition of 70% Na2B4O7-30% B4C in the liquid medium.
g-C3N4/ Bio–Synthesized Silver Nanoparticle for Fluorometric Bio-Sensing of Acetylcholinesterase and Malathion
Authors: Ali Abdu Hussen
Published: October 2022

Malathion is widely used in agriculture due to their high efficiency as insecticides. They are very toxic hazardous chemicals to both human health and environment even at low concentration. The detection of pesticides (malathion) at the low levels developed by the environmental protection agency (EPA) still remains a challenge. A highly efficient fluorescent biosensor based on g-C3N4/AgNPs for AChE and malathion detection is successfully developed by impregnation method. The structural and morphological properties of the nanocomposites were characterized by using powder X-ray diffraction (XRD), fourier- transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The analysis confirmed that there is a strong interfacial interaction between g-C3N4 and AgNPs. The fluorescent responses show an increase in intensity upon the additions of AChE which indicates that AChE as enzyme was hydrolyzing the substrate ACh, with the increase in oxidative electron as the preferred route of reaction. The developed OFF-ON sensor immobilizes by Actylcholestrase (AChE) and use as new probe for malathion detection. In the absence of malathion, AChE−g-C3N4/AgNCs exhibit high fluorescence intensity. However, the strong interaction of the basic sites to malathion, causes fluorescence quenching via static quenching and Ag form aggregation on the surface of g-C3N4. The experimental parameter such as pH of buffer (pH=6), concentration of acetylcholine (1 mM) and malathion (500 μM) were optimized. The sensor was also more sensitive with Stern-Volmer quenching constants (KSV) of 3.48x10 3 M −1. The practical use of this sensor for malathion determination in Khat was also demonstrated. The obtained amount of malathion in Khat is 168.8 μM.
Analytical Description of Concentration of Radiation Displacement Defects in Oxide Crystals as Function of Electrons or Neutrons Energy
Authors: Potera Piotr
Published: October 2022

The main purpose of this work is the description of dependence of the concentration of radiation displacements defects (RDD) induced by electrons and neutrons in garnets, perovskites, silicates, germanates, and tungsted bronzes type crystals (Y3Al5O12, Gd3Ga5O12, YAlO3, LiNbO3, Bi4Si3O12, Bi4Ge3O12, Ca0.28Ba0.72Nb2O6) on the energy of particles by analytical function. The dependences were determined on the basis of calculations made using the Monte-Carlo method realized in the Atom Collision Cascade Simulation program. The results of calculations show that the concentrations of RDD reduced to one impinging particle increased initially with the particles energy and they saturates for the electron and neutron energy above 3–36 MeV, depending on crystal, sublattice and kind of irradiation particle. A wide range of energies for which the concentration of RDD is independent of the energy of particles (neutrons, electrons) makes them potential materials for the dosimetry of high-energy particles. The comparison of the concentrations of RDD calculated for different sublattices as well as for the cases of electrons and neutrons is made. In the case of irradiation with electrons, the relative concentration of RDD of the oxygen sublattice strongly depends on the energy of electrons and the crystal and varies in the range of 10–90%. In the case of neutrons, the relative concentration of RDD of the oxygen sublattice does not depend on the neutron energy and is in the range of 66–84% depending on the crystal.
The Effect of Resistance Spot Welding Parameters on Microstructure and Strength of DP800 Steel Joints Using Response Surface Methodology
Authors: Rajarajan Chakkravarthi , Sonar Tushar , Sivaraj Paramasivam , Raja Selvaraj , Mathiazhagan Nallusamy
Published: October 2022

The main objective of this paper is to analyze the direct and interaction effect of resistance spot welding (RSW) parameters on microstructure and strength of DP800 steel joints using response surface methodology (RSM). The DP800 steel sheets were spot welded in straight lap and cross lap joint configuration using RSW. The relationship between the RSW parameters, tensile shear fracture load (TSFL) and nugget zone hardness (NZH) was established employing statistical regression analysis and validated using Analysis of Variance (ANOVA). The DP800 steel joints made using welding current of 5.0 kA, electrode pressure of 4.0 MPa, and welding time of 1.50 s displayed maximum STRAIGHT-TSFL of 21.7 kN, CROSS-TSFL of 17.65 kN, and NZH of 589 HV0.5 respectively.
Analysis of higher education management strategy based on entropy and dissipative structure theory
Authors: Ren Miaomiao
Published: October 2022

In order to explore the analysis of educational management strategies in Colleges and universities, a method based on entropy and dissipative structure theory is proposed. Firstly, we determine the connection length B, which refers to the shortest path between two elements in the structure diagram. The length of direct connection is 1, and the length of each transfer is added by 1. Secondly, calculate the total number of microscopic states of the system, A
1, A
1 = ∑∑ Lab, Third, calculate the probability value of the realization of the micro state of each connection:

P

(

a
,
b

)

=

L

a
b

A

a

P\left( {a,b} \right) = {{{L_{ab}}} \over {{A_a}}}

. Finally, the entropy of organizational structure between any two elements of the system at the same level vertically and horizontally is calculated: H
1(ab) = −Pa
(ab)lnPa
(ab). The experimental results show that student satisfaction is considered to be an important dimension of management team performance evaluation. Through the survey of student satisfaction, it is found that the student satisfaction rate of two teams is 100%, the student satisfaction rate of two teams is 99%, and the satisfaction rate of one team is 98.5%, which shows that the management team has good performance. It is proved that the theory of entropy and dissipative structure can effectively improve the educational management strategy of colleges and universities.