bluuebunny/crossref_metadata_2025 huggingface dataset:
Interactive Study of Multimedia and Virtual Technology in Art Education
Authors: Liu Quan , Chen Haiyan , Crabbe M. James C.
Published: January 2021

Art education an important part of aesthetic education. It is indispensable for the comprehensive and healthy development of human beings. The basic task is to cultivate creative ability, human aesthetics, and apprec iation. Art education is conducive to improving the humanistic cultivation of young students, enhancing the spiritual realm of human beings, and cultivating the creative ability of young people. It has irreplaceable social, cultural, and an-thropological significance for promoting the comprehensive and healthy de-velopment of people. The development of multimedia information technolo-gy provides a new teaching method for art education and teaching in a con-temporary setting. This teaching method can guide students to optimize or change the methods and concepts of traditional art creation and aesthetic value. However, traditional art education multimedia technology has poor teaching effects due to limited teaching conditions. This requires the use of multimedia technology and other technologies for interactive fusion. There-fore, this paper proposes an interactive fusion model of multimedia and vir-tual technology, which is verified by the model. It was found that this inte-grated education method could not only simulate the real environment and expand the cognitive scope of students, but also could promote students' learning motivation as well as situational and authentic learning experiences.
An Accent Marking Algorithm of English Conversion System Based on Morphological Rules
Authors: Zhao Yanxia , Ren Wei , Li Zheng
Published: January 2021

Facing the English conversion system, the existing accent marking algorithms cannot acquire the morphological rules of English, making the accent marking inaccurate, inefficient, and time-consuming. To solve these problems, this paper puts forward an accent marking algorithm of English conversion system based on morphological rules. Specifically, the English audios in a self-developed English corpus were classified by the speaker classification software based on hidden Markov model, as well as audio classification technology, producing the morphological rules of English. After that, the English accents were marked by the maximum entropy model in the English conversion system. The proposed method was proved accurate and efficient in accent marking through experiments. The research results provide a good reference for marking the accents in English conversion system.
Gadget-Based Interactive Multimedia on Socio-Scientific Issues to Improve Elementary Students’ Science Literacy
Authors: Suryanti Suryanti , Widodo Wahono , Yermiandhoko Yoyok
Published: January 2021

Students’ science literacy in Indonesia is considered very low and needs improvement. Knowledge, such as science, can be learned naturally and effectively in social context (Social Scientific Issues/SSI). The current elementary students are regarded as generation Z students who are interested in technology and skill-based education, namely, interactive multimedia. This study aimed to develop SSI Gadget-based interactive multimedia in order to improve elementary students’ science literacy skills. This is a Research and Development study with 4-D model; define, design, develop, disseminate. The subjects of this research were 23 students. The data were collected using validation sheet, observation sheet and science literacy test. The data then being analyzed by using descriptive statistic of presentation and N-gain. The result indicated that interactive multimedia based on SSI-Gadget are compatible as an alternative learning medium to improve elementary students’ science literacy since they met the criteria of being, a) very valid with a score of 3.55; b)  good practicality in it so that the students dominantly did their activities through the developed media; c) effective, as there were positive responses about the learning activities and the students improved their science literacy skills from level 3 to level 4, with an N-gain of 0.4.
Leadership Thinking Through Managerial Psychology
Authors: Johnson Rick D.
Published: January 2021

Business organizational needs are met successfully when there are leaders in place who understand their people, industry, and societal concerns. Organizations inherently involve humans who must be managed and directed to varying degrees, and managing is not always as streamlined as some may wish. Understanding the needs and goals of each individual or group is paramount for a manager to elevate from daily management to ongoing leadership. A good manager/leader should strive to have personal knowledge of a collection of leadership theories and applications that would serve them in different situations. People are complex beings, and great leaders have the ability to appeal to the psychological aspects of how to lead particular groups of individuals. Through this framework, leaders can have a better understanding of how to manage when necessary, and managers can in turn begin to learn how to lead. This chapter offers insight to an audience who can begin to identify a core group of leadership competencies, theories, and qualities to synergize their personal preference.
Blending Leadership Roles and Theories in Today's Multi-Generational Organizational Culture
Authors: Burgess Carl T. , Adkins Joan , Suniga Noreen , Mbanaja-Opara Francisca
Published: January 2021

To be an effective organization in this multidisciplinary psychological organizational culture, leaders are required to be many things to many people. The chapter describes the authors' thoughts, specifically regarding leadership in the multi-organizational culture, associated with the psychological culture in the organizations. This chapter looks at leadership and the meaning that it has to organizations, people, and cultures. Practitioners often talk about the application of leadership and how to best apply these methods in today's multi-generational organizational culture. Organizations are presented with a continuum or range of possible leadership behavior and styles, which are available to those individuals who manage today.
An Exploratory Content Analysis of Human Resources Management in Healthcare Organizations
Authors: Springs Delores
Published: January 2021

Human resource experts suggest unveiling future trends should invite practitioners to focus on evolving human resource management (HRM) roles, target deficiencies, and present solutions leveraging abilities to converge, employees, leaders, and stakeholders committed to advance opportunities for professional development. This chapter provides a detailed analysis of human resources management (HRM) roles that affect employee management changes to explore human resource (HR) accountability, competency management, employee abilities, and organizational capabilities around treatment effectiveness and reduction of errors in healthcare delivery. Explorations on HRM's future impact on career development, succession and replacement planning, and development provoked examinations on goals and future career aspirations in healthcare.
Lived Experiences of Women Over 50 Who Lost Their Jobs
Authors: Phillips Roxine D.
Published: January 2021

The study includes a transcendental phenomenological approach to describe the lived experiences of women over 50 following job losses, the barriers faced to reemployment, and the ways by which women overcame the barriers to reemployment, and compares these experiences to the experiences of men. The data gathered from a convenience sample of 10 women between the ages of 56 and 74 provided in-depth descriptions of participant experiences following job loss. The findings indicated that women and men view and cope with job loss differently. Further studies could lead organizational leaders and policy makers to a more in-depth understanding of the experiences of women over 50 following job loss and provide guidance when considering strategies to address the unique needs of older workers seeking reemployment.
Implementation of CEO Servant Leadership
Authors: Yoon SookYoung S. , Darville Jeffrey J.
Published: January 2021

The purpose of this study was to investigate the impact that expressions of servant leadership (SL) have on perceived corporate outcomes, performance, and employee satisfaction. Linking symbolic interactionism and grounded theory, this research analyzed the descriptive, empirically-driven, and theoretical underpinnings of the implementation of servant leadership philosophy and value on chief executive officers (CEOs), as well as the organizational barriers associated with the implementation of SL in American for-profit organizations. This qualitative study found indications of a relationship between SL and a strong ethical organizational climate and culture, employee morale, empowerment, and commitment to organizational effectiveness. The interviews with CEOs formed a consensus among executives that SL provides long-term sustainability, boosts social responsibility, and encourages a global mindset. Additionally, a servant leader's approach to strategy mitigates corporate scandals, toxic work environments, and the risk of employee burnout.
Effects of Contemporary Leadership Styles and Employee Engagement on Customer Satisfaction in the Retail Grocery Industry in the US
Authors: Melvin Lateef
Published: January 2021

Competition within the retail grocery industry has reached an all-time high. Organizations looking to differentiate themselves from rivals are focusing on improved customer satisfaction. This quantitative research study investigated how customer satisfaction was related to contemporary leadership styles and employee engagement. Transactional leadership theory, transformational leadership theory, and charismatic leadership theory were used as the theoretical framework of the study. Regression analyses were conducted to determine the effect of contemporary leadership styles on employee engagement in addition to determining the extent of the relationship existing with customer satisfaction. The results of the study indicated both transactional leadership and transformational leadership positively impacted or increased employee engagement; however, transformational leadership proved to be a significantly higher predictor of employee engagement.
Understanding the Influence of Teacher Leadership and Teacher Quality on Student Performance
Authors: Williams Tiffany
Published: January 2021

The main objective of this study was to understand how teacher leadership and teacher quality impacted fourth grade student performance on the Louisiana Education Assessment Program (LEAP). The participants chosen were six schools in Louisiana who were labeled academically unacceptable for at least three years that taught fourth grade. A review of the data results provide an indication that, although standardized test scores of students are one piece of information for school leaders to use to make judgments about teacher effectiveness, such scores should be only a part of an overall comprehensive evaluation of the role of teacher leadership and teacher quality on student performance. The results varied by the characteristic of teacher quality and its impact on student performance.
The Complex Nuances of Nurse Manager Leadership
Authors: Bowers Seleste
Published: January 2021

Hospital organizations are affected by the shortage of nurses across the United States. Hospital organizations must strategically plan to recruit and retain nurses. An average hospital will incur costs between $5.13 million to $7.86 million due to RN turnover. In an outcome-focused healthcare environment, healthcare leaders must consider all perspectives involved in nurse manager leadership. The purpose of this phenomenological study was to describe nurses' lived experiences with nurse manager leadership on medical surgical units in Riverside County, California, USA.
Thinking Styles and Leadership Skills of Managers on Organizational Productivity
Authors: Saini Garima , Shabnam
Published: January 2021

Psychological aspects, a great concern of managerial psychology, include emotions, thinking, attitudes, and motivation of the employees in managerial positions, which ramifies the productivity of the organization. Managerial thinking and leadership skills are important components in achieving organizational goals. Organizational productivity is a strong indicator for managers in the growth which has direct relationship with organizational performance. Efficacious leadership skills in managers like interpersonal skills, team building, flexibility, emotional intelligence helps in meeting the goals which simultaneously increases the organization productivity and performance of the employees. Strategic management approaches by the managers to increase productivity at successive levels. An executive manager is an agent of change who lets a subordinate work according to him and then he converts the follower into a leader through team quality management (TQM) programs and effectiveness. The managerial implications are discussed which helps to establish cooperative innovations.
Organizational Development and Change Management Implement AR, AI, and PC for Steller Non-Profit Org.
Authors: Daryousef Marlena
Published: January 2021

Organizational development and change remains an issue, especially when communication and engagement among employees is lacking. This action research study identified issues and strategies essential to help with change management. The action research study focused on one non-profit organization by consulting with five employees with three years or more experience involvement in their local community for at-risk teens in Seattle, Washington metropolitan area. The researcher facilitated action research, appreciative inquiry, and process consultation to discover the issues Steller non-profit organization experienced, and moving forward to implement effective processes which can help them to achieve a desirable outcome.
Impact of Athlete Role Model on the Behavioural Intentions of the Youth in Egypt
Authors: Mohamed Alaaeldin Hamdy Ahmed , Mahmoud Dina Kamal , Elmogy Kawther Al Said
Published: January 2021

This study aims at examining the effect of athlete role models on the young generation including both students at school age and others at the university age purchase intentions and behaviours. Teenagers are currently considered a part of young generation (Generation Y); they have been identified as individuals born between 1977 and 1994. Young adults are major sport consumers; therefore, sport marketers target them. The reasons for this targeting are: (1) their spending power, (2) their ability to be trendsetters, (3) their receptivity to new products, and (4) their tremendous potential for becoming lifetime customers. This research has reached the conclusion that athlete role models have great impact upon teens; which helps to spread positive word of- mouth about the product or the brand and enhances brand loyalty.
Classifying Sport Consumers
Authors: Hedlund David P. , Biscaia Rui , Leal Maria do Carmo
Published: January 2021

Sport fans rarely attend sporting events alone. While traditional consumer and sport fan behavior research often examines fans based on demographic characteristics, recent advances in understanding how sport fans co-create and co-consume sporting events provides substantial evidence that sports fans should be examined as tribal groups. Tribal sport fan groups can be identified based on seven dimensions, including membership; geographic sense of community; social recognition; shared rivalry; and shared knowledge of symbols, rituals and traditions, and people. In this research, these seven dimensions are used to classify sport fans (n=1505) through hierarchical and k-cluster analyses. The results of the cluster analyses using the seven dimensions suggest six unique clusters, labelled as (1) casual fans, (2) moderate remote fans, (3) moderate local fans, (4) local developing tribal fans, (5) remote tribal fans, and (6) tribal fans. A discussion of these six fan groups and the implications regarding associations with demographics and other important variables are provided.
Creating a Fan Community for Sport Teams Through Social Media
Authors: Rufer Rosalyn J. , Rufer Lisa S.
Published: January 2021

With so many people using social media, it is no surprise that sports team at all levels are looking to use social media to increase interactions with the spectators. Consumers appear to choose to use social media to connect with the team, other fans, and feel a sense of belonging to a community. There are many articles that discuss the relationship between social media and sport; however, many of them are not supported with empirical data, nor do they address the gap between fan communities and behavior. This study uses empirical data to try to prove that there is a relationship between social media and creating a brand community for teams in the National Basketball Association (NBA). It adds to the literature by providing empirical evidence between fan communities and fan behavior.
Rivalry In and Out of Sport
Authors: Havard Cody T.
Published: January 2021

The current chapter offers (1) an overview of what is known regarding sport rivalry and (2) how that knowledge can be applied to both sport and non-sport settings. In particular, the authors discuss what is known about rivalry and intergroup relations, detailing specific examples from the sport setting. Then, the essay addresses how non-sport organizations, and society at large, can benefit from the literature on sport rivalry. Included in this are examples of responsible promotion of rivalry and group competition, along with a discussion of the Adventures with Sport Rivalry Man comics, cartoons, and curriculum, a program intended to teach people about rivalry and appropriate behavior toward others. Suggestions for responsibly promoting rivalry and competition outside of the sport setting are offered along with areas for future consideration. Finally, a challenge is presented to future researchers and practitioners to improve the use of rivalry to promote products and decrease group member deviance.
e-Sport as Leverage for Growth Strategy
Authors: Davidovici-Nora Myriam
Published: January 2021

While e-Sport today becomes a big business and a highly publicized industry, a big business and a highly-publicized industry, it is still studied from a descriptive perspective rather than from an analytical one. In this paper, the author proposes to analyze the relationship between e-Sport and the growth strategy of the game League of Legends (LoL) developed by Riot Games. How competitive community and casual community evolve together? What are the conditions for a virtuous growth? The author deepens the link between the traditional free-to-play dynamics based on acquisition-retention-monetization of players and the dynamics of e-Sport based on managing audience, pro-gamers, competitive events and broadcasting. The author finds that casual players and pro-gamers have specific roles that, combined with an active policy centered on player's experience developed by Riot Games and with a growing media ecosystem, create externalities on each other.
Legal, Ethical, and Integrity Issues in Sports Industry
Authors: Ponkin Igor , Shevchenko Olga , Redkina Alena
Published: January 2021

This chapter focuses on the issues of the sports industry. Since sport, in addition to its other aspects, is a fast-growing industry, the chapter considers the importance of sports industry for the sector as a whole. The chapter shows the basic elements of sports industry structure, together with the peculiarities of Russian sports industry legal support in general and in some particular directions. The authors give definitions of “sports industry,” “sports product,” “sports entertainment product,” “professional sports,” “professional athlete,” “sports ethics,” and “sports integrity.” Being a good basis for sports business development, the legislation of the Russian Federation in the sphere of legal services for business and commercial activities within the sports industry takes into account sports-specific features and its principal functions enabling professional sports sector to provide benefits to economy and society. However, there is still space for further development.
Problems of the Fight Against Doping in Professional Sports
Authors: Peskov Anatoly
Published: January 2021

Doping became, as many experts note, not only more diverse, highly specialized, and efficient, but also dangerous for the health of athletes. One of the main factors that allows athletes to escape responsibility is corruption. The author pays particular attention to research and new technologies in the field of sports medicine, including generating new kinds of doping. The chapter also examines the practice of international standard on granting exceptions on therapeutic use of drugs. The author suggests reconstructing the existing system of criminal and administrative law to develop new enforcement mechanisms in the fight against doping to impose a ban on the testing of new drugs on professional athletes.
Performance Evaluation of Teams in Chinese Professional Baseball League
Authors: Yeh Shao-Wei , Chen Mei-Jung , Chuang Cheng-Tien , Lin Wen-Bin
Published: January 2021

In this article, a performance evaluation of the Chinese Professional Baseball League (CPBL) was conducted from a human resources (HR) perspective. Two important aspects were included: (1) a comprehensive evaluation of the competition performance of the professional baseball teams in international games and regular season games; and (2) the data envelopment analysis (DEA) and “two-stage” methodologies, which were employed to process truncated data to resolve the factors that affect the efficiency of the decision-making unit (DMU). By applying DEA and truncated regression analysis with bootstrapping, the performances of CPBL teams in games of different intensities were investigated. The number of foreign coaches and native players both were the key factors to affect the competitive efficiency of CPBL teams, and the Uni President 7-ELEVEN Lions had the best performance efficiency team. This interdisciplinary investigation provided the most appropriate references and recommendations for professional baseball teams on HR management so that baseball fans' expectations are met.
Do E-Athletes Move?
Authors: Kari Tuomas , Karhulahti Veli-Matti
Published: January 2021

This article offers possibly the first peer-reviewed study on the training routines of elite e-athletes with special focus on the subjects' physical exercise routines. The study is based on a sample of 115 elite e-athletes. According to the responses, e-athletes train approximately 5.28 hours every day around the year on the elite level. Approximately 1.08 hours of that training is physical exercise. More than half (55.6%) of the elite e-athletes believe that integrating physical exercise in their training programs has a positive effect on esport performance; however, no less than 47.0% of the elite e-athletes do their physical exercise chiefly to maintain overall health. Accordingly, the study indicates that elite e-athletes are active athletes as well, those of age 18 and older exercising physically more than three times the daily 21-minute activity recommendation given by World Health Organization.
Exploring the Relationship Between Student Behavioral Patterns and Learning Outcomes in a SPOC
Authors: Chen Changsheng , Meng Xiangzeng
Published: January 2021

As a supplement to face-to-face teaching, small private online courses (SPOCs) have become increasingly popular in higher education. Nevertheless, there is a lack of research on behavioral patterns in the university SPOC. This empirical study investigates the behavioral patterns of 306 undergraduate students taking a degree course partially taught through a university learning platform. Results suggested that task-oriented behaviors accounted for most of the online learning processes. The login behavior was the most significantly correlated with learning outcomes, followed by student engagement with learning activities. The authors found that students' engagement levels had a statistically significant impact on their learning outcomes. Additionally, the high-achieving group demonstrated higher activity levels in performance- and objective-driven activities. The low-achieving group encountered some difficulties in self-regulated learning.
Manual Scavenging in India
Authors: Gupta Pallavi
Published: January 2021

Manual scavenging is an occupation which has been in existence since the human society. The inhuman practice of manually take out night soil which comprises removal of human waste from dry toilets with their bare hands, brooms, or metal scrappers; transporting excrements and bags to dumping sites for disposal is not only diabolic but perhaps the top degree of human rights violation. Manual scavenging is a sort of enforced labour in some places. It passes on from generation to generation. Culture of getting prevailing amongst them is also depriving them of their rights. Regardless of several arrangements, laws, and policy, the state has been unsuccessful in its endeavours, but the conditions of the scavenging societies have remained unacceptable; the inhuman and shameful practice of manual scavenging is continuing. Researcher will critically observe the management of the manual scavenging with reference to actions of the state in safeguarding the due rights of the scavenging community in Indian scenario for better condition of manual scavenging occupation.
Benign recurrent intrahepatic cholestasis (BRIC): a rare diagnostic challenge
Authors: Gnanathayalan S. W. , Peranantharajah T.
Published: January 2021

Benign recurrent intrahepatic cholestasis is a rare familial cholestatic disorders with occasional sporadic incidence. It presents as recurrent episodes of obstructive jaundice and pruritis without any obstruction in the biliary system with perfectly symptom free period in between. Here we present a 35-year-old male with recurrent episodes of jaundice from the age of 20, eventually being diagnosed as BRIC after extensive evaluation.
Case report on Parinaud’s oculoglandular syndrome; a presentation of cat scratch disease
Authors: Sanchayan T. , Gheetheeswaran S.
Published: January 2021

Cat scratch disease is an infectious disease caused by Bartonella species. Usually a self-limited illness, cat-scratch disease rarely gets reported. This case report describes about a patient admitted with clinical features of Parinaud’s oculoglandular syndrome – an atypical clinical presentation cat scratch fever - which was treated successfully with antibiotics.
Mediterranean spotted fever
Authors: Thanikai S. , Sivansuthan S.
Published: January 2021

No abstract available
To live is an act of courage
Authors: Sathiadas M. G.
Published: January 2021

No abstract available
Smooth linearization under nonuniform hyperbolicity
Authors: Barreira Luis , Valls Claudia
Published: January 2021

For any sufficiently small perturbation of a tempered exponential dichotomy, we obtain appropriate versions of the Grobman–Hartman theorem and of the Sternberg theorems both for finite and infinite regularity, thus providing, respectively, topological and smooth conjugacies. The constructions are heavily based on the existence of normal forms, with the resonances expressed in terms of the connected components of the nonuniform spectrum, which is a tempered version of the Sacker–Sell spectrum. In order to obtain specific tempered bounds for the derivatives up to a certain order, we first construct smooth stable and unstable invariant manifolds for any sufficiently small perturbation of a tempered exponential dichotomy. We also make several preparations of the dynamics so that the linear part has a block form, the nonlinear part has no terms up to a given order, and the stable and unstable manifolds coincide, respectively, with the stable and unstable spaces. The conjugacies are then constructed via the homotopy method.
Case Report: Ascending Myelo-Encephalitis after a Penetrating Injury to the Foot: An Atypical Case of Neuromelioidosis
Authors: Varkey Maramattom Boby , Rathish Balram
Published: January 2021

Organisms penetrate the central nervous system (CNS) via three routes. The commonest is the hematogenous route, and other routes include contiguous or penetrating injury or rarely via retrograde axoplasmic route. Although the axoplasmic highway is often used by viruses, only a few bacteria are known to penetrate the CNS via this route. We present a 57-year-old man who developed a penetrating injury while working in a field. Over the next 4 months, he developed pain at the site of the poorly healing wound, which ascended up the right leg and presented as a conus-cauda syndrome. Magnetic resonance imaging (MRI) showed an enhancing intradural intramedullary enhancing lesion in the conus on the right side with cord edema from D11 to L1 level. Extensive evaluation was negative, and he continued to progress to holocord myelitis and developed bilateral corticospinal tract lesions (“tractopathy”) in the brain stem and internal capsule. He died after developing a right-sided cerebritis with mass effect. Tissue biopsy from the brain at the time of decompressive craniectomy grew Burkholderia pseudomallei and confirmed a diagnosis of neuromelioidosis (NM). We reviewed the literature for NM, its variable presentations, and the concept of an “infectious tractopathy” and imaging findings which could generate suspicion of this entity.
Echocardiographic Screening Detects a Significant Burden of Rheumatic Heart Disease in Australian Torres Strait Islander Children and Missed Opportunities for its Prevention
Authors: Hempenstall Allison , Howell Erin , Kang Katherine , Chau Ken W. T. , Browne Amylou , Kris Ella , Wapau Hylda , Pilot Pelista , Smith Simon , Reeves Benjamin , Hanson Josh
Published: January 2021

Rheumatic heart disease (RHD) is almost entirely preventable, but its incidence in indigenous Australians remains one of the highest in the world. A community-based echocardiogram screening program of 862 Torres Strait Islander children identified 25 (2.9%) new cases of RHD. Among these 25 children, 5/7 (71%) prior acute rheumatic fever presentations had not been recognized. There was a history of microbiologically confirmed group A Streptococcus infection in 17/25 (68%) children with RHD compared with 9/25 (36%) controls (odds ratio [OR] [95% CI]: 3.78 [1.17–12.19], P = 0.03). This was more likely to be a skin swab (16/25 [64%] cases versus 6/25 [24%] controls) than a throat swab (1/25 [4%] cases versus 3/25 [12%] controls) (OR [95% CI]: 5.33 [1.51–18.90] [P = 0.01]), supporting a role for skin infection in RHD pathogenesis. Household crowding and unemployment were common in the cohort, emphasizing the need for prioritizing strategies that address the social determinants of health.
Case Report: Isolated Central Nervous System Melioidosis from a Non-Endemic Area
Authors: Mishra Biswamohan , Vishnu Venugopalan Y. , Bhatia Rohit , Garg Ajay , Doddamani Ramesh Sharanappa , Singh Parul , Chand Sharma Mehar , Singh Mamta Bhushan , Rajan Roopa , Gupta Anu , Srivastava Madakasira Vasantha Padma
Published: January 2021

Central nervous system (CNS) melioidosis is a rare neurological infectious disease which carries a high mortality. We describe a previously healthy middle-aged female, who presented to us with left-sided hemiparesis and was on antitubercular therapy from a previous presumed diagnosis of CNS tuberculoma. Non-characteristic imaging picture, multiple negative body fluid cultures, and positive Cerebrospinal fluid galactomannan led to a further delay in diagnosis. Gram stain of the tissue obtained from brain biopsy revealed Gram-negative rods in “safety pin” appearance. By picking up the colonies that appeared on blood agar and MacConkey agar, the identification of the clinical isolates was performed using VITEK® matrix (BioMérieux, Marcy-L’Etoile, France)-assisted laser desorption ionization time-of-flight mass spectrometry (VITEK MALDI TOF MS database version 3.2) which revealed Burkholderia pseudomallei. After the institution of appropriate treatment, she survived but with significant morbidity. A high index of suspicion should be kept for such previously healthy individuals belonging to non-endemic areas, where presentation is suspicious of an infective etiology, but not improving despite appropriate therapy. This may help in early recognition and institution of recommended treatment so that mortality can be avoided.
Synthesis, structural elucidation and electrochemical behavior of some oxime-phenylalanine mixed ligand complexes
Authors: T. Öztoprak U. , P. Özkorucuklu S. , Y. Baştemur G. , E. Tunçmen M. , Karipcin F.
Published: January 2021

Four new mixed ligand complexes Me(II)/phenylalanine (phe)/HL [HL =4-(4-bromophenyl- aminoisonitrosoacetyl)biphenyl and Me = Co, Ni, Cu, Zn] were synthesized. These complexes are formulated as: [CoL(phe)(H2O)2], [NiL(phe)(H2O)2], [CuL(phe)(H2O)2] and [ZnL(phe)(H2O)2]. All the compounds were characterized by elemental analyses, FT-IR, magnetic susceptibility measurements, TG/DTA and cyclic voltammetry (CV) experiments. IR spectral data confirmed the coordination of the oxime ligand to the metal ions through the oxime and carbonyl oxygen. The geometrical structures of the complexes have been found to be octahedral. The measured molar conductance values of the complexes in DMF are in agreement with the non-electrolytic nature ofthe complexes. The elemental analyses confirm a 1:1:1 [metal:HL:L(phenylalanine)] molar ratio. Thermal behavior of the compound was investigated by thermal gravimetric analysis (TG) and differential thermal analysis (DTA) techniques. All the complexes were transformed into metal oxides after thermal degradation. The electrochemical properties of both ligand and their complexes were analyzed by cyclic voltammetry (CV) using glassy carbon electrode in DMF solution containing 0.1 M TBAP as supporting electrolyte.

                   

KEY WORDS: Oxime, electrochemical characterization, mixed ligand complexes, amino acid, phenylalanine

 

Bull. Chem. Soc. Ethiop. 2020, 34(3), 543-556.

DOI: https://dx.doi.org/10.4314/bcse.v34i3.10
Study of the histidine complex of uranium(IV): synthesis, spectrophotometric, magnetic and electrochemical properties
Authors: Nazir M. , Khattak R. , S. Khan M. , I. Naqvi I.
Published: January 2021

We synthesized the novel histidine complex of uranium(IV). A 1:3 mole ratio was found between metal and ligand by the mole ratio method, while –NH2 and –COO– groups of histidine behave as coordinating sites. The IR spectra confirmed the lone pair donating or coordinating sites. The elemental analysis confirmed the stoichiometry. The bathochromic shift with an increase in the optical density in the UV-Visible range indicated that the compound and its central metal ion hold uniform electronic charge distribution. The electrochemical results indicated a quasi-reversible (neither completely reversible nor completely irreversible) oxidation of the complex to its uranium(V) product at the platinum working electrode. The quasi-reversible process shows a comparatively slow electron transfer (ET) rate with the heterogeneous electron transfer rate constant ‘ks’ (3.4 ×  10–4 cm s-1) at 50 mV s-1 and 305 ± 0.5 K. The kinetics such as diffusion and charge transfer lead the reaction with an ECE (electrochemical–chemical–electrochemical) mechanism. The thermodynamic parameters of activation such as ΔH*; 4.257 kJ mol–1, ΔS*; -2.519 × 10–3 J mol–1 K–1 and ΔG* 4.26 kJ mol–1 helped to propose an associative mechanism of the electron transfer at the platinum working electrode.

                   

KEY WORDS: Uranium, Histidine, Spectroscopy, Electrochemistry, Kinetics

 

Bull. Chem. Soc. Ethiop. 2020, 34(3), 557-569. 

DOI: https://dx.doi.org/10.4314/bcse.v34i3.11
Toxicological assessment of synthesized and characterized transition metal(II) complexes of eflornithine hydrochloride hydrate on albino rats
Authors: A. Osunniran W. , A. Obaleye J. , C. Tella A. , O. Ayipo Y. , T. Bale A. , O. Rajee A.
Published: January 2021

Transition metal complexes of Cu(II), Co(II) and Ni(II) with eflornithine hydrochloride hydrate (EFN), an antitrypanosomiasis drug, as ligand have been synthesized and characterized by melting point, elemental analysis, Fourier transform infrared (FTIR), electronic spectra, magnetic susceptibility and electrospray ionization mass spectrometry (ESI-MS). The FTIR spectral data suggested the coordination modes of the ligand to be bidentate, coordinated to the metal ions through its carboxylate oxygen atom and an amino nitrogen atom. From the microanalytical data, the stoichiometry of the metal complexes is 1:2 (metal to ligand). The electronic absorption and magnetic susceptibility studies generally suggested octahedral geometry for the metal complexes. Toxicological evaluation of the ligand (EFN) and complexes were carried out using albino rats. Twenty-five albino rats that were used for the experiment were randomly divided into five groups and animals in group 1 served as a control. All the animals were sacrificed twenty-four hours after completion of their doses. The results revealed a high level of toxicity of EFN than the synthesized metal complexes.

                   

KEY WORDS: Eflornithine hydrochloride hydrate, Carboxylate moiety, Antitrypanosomiasis drug, Toxicological evaluation, Albino rats

 

Bull. Chem. Soc. Ethiop. 2020, 34(3), 489-500.

DOI: https://dx.doi.org/10.4314/bcse.v34i3.6
The Influence Law of Multi-point Cumulative Blasting in Slope
Authors: Han Liu , Shu Jisen , He Yanjun , Chen Tao , She Changchao
Published: January 2021

In order to study the cumulative blasting stress wave produced by the vibration of soft rock slope, the deformation regularity of the influence of blasting, caused by the horizontal and axial acceleration along with other additional stress waves were analyzed. The vibration displacement formula along with the vibration source stress wave superimposed model were established. The research also deduced the deformation rule for the gangue slope of Lijiahao Coal Mines as a vibration signal recorder was used to collect the blast vibration wave and the simulated analysis of displacement monitoring profile of the X and Y displacement rule under the influence of blast vibration were obtained. The results indicate that with the increase of the shot point distance, the displacement in the Y direction shows a logarithmic decline rule while the change in displacement of the X direction is small. The result also shows that the greater the initiation of multipoint shot firing, the greater the slope deformation and displacement of the rock mass and as a result multipoint nonsimultaneous blasting and control detonation time difference, can effectively reduce the effects of vibration on the slope deformation.
A Modeling Method of Cylindrical Turning Processing Behavior
Authors: Li Hongtao , Zhao Gang , Zhang Yi Chen , Ji Yingxin
Published: January 2021

This paper put forward the theory of processing behavior through research on conceptual system of advanced manufacturing technologies and production modes such as cloud manufacturing and systematic classification of processing technology, and gave the concept of processing behavior primitive element. The processing behavior was classified and the relationship between different levels of processing behavior was clarified. To realize the standardization of NC processing technology for parts of automatic turning programming. Embed turning behavior into the design elements, realize the combination of design and manufacturing, shorten the time and space of coordination and product cycle, reduce product design and manufacturing costs, and achieve green, low consumption, high quality, high efficiency and effective manufacturing of turning parts.
Data Migration System Over Distributed Cloud Environment with Internet of Things for Smart Communications
Authors: Xu Long , Hao Xiao Tao
Published: January 2021

Data Migration (DM) is a significant event for an organization in the revolution of Internet of Things (IoT) and Smart City. The total service providers augmented dramatically since, the data generation through IoT in cloud is enormous. Furthermore, the cloud is turning out to be the tools of option for additional cloud storage services along IoT for Smart city. Nevertheless, as more private information/data is transferred to the cloud via social media sites like Baidu WangPan, DropBox, etc., data security and also the privacy issues are questioned. To beat such drawbacks, this paper proposed a security enhancement for the DM system over the cloud environment for Smart City. This work is partitioned into ‘2’ phases where Phase I is a storage phase and Phase II is a retrieval phase. In the storage phase, the data is compressed using MHA and then the data is encrypted utilizing MHECC algorithm for securing data for Smart City. Subsequently, some of the data-related features are extracted. After feature extraction (FE), the distributed cloud server is selected using MGWO. Then, DM is performed dynamically on various cloud servers (CS) using ANFIS. The retrieval phase is the opposite process of the storage phase. In the retrieval phase, the data is decrypted using the same MHECC algorithm and then, the decrypted data is decompressed utilizing the same MHA algorithm. After that, row transposition is performed on both component A and component B. Finally, the components are summed up, and the original data is obtained. Experimental results contrasted the proposed and the prevailing systems centered on key generation time, encryption time, decryption time, security, and threshold.
Improved Competency of School Principals Through Construction of Work Group
Authors: Lynne Teresa
Published: January 2021

The development of school supervision competence through the construction of school supervisors in the activities of the school Principal Work Group (PWG) has been conducted. This research aims to find out: (1) The principal competency of the school principals after the construction of school supervisors in the PWG activities in Sangkuang Island, East Kutai District (2) to know the constraints of increasing competency of principal in Sangkuang Island, East Kutai Regency. This research is a qualitative study, conducted at the state Elementary school in Sangkuang Island, Sangkulirang Sub-district, East Kutai District consisting of 4 schools: (a)Elementary School 003 Sangkulirang; (b) Elementary School 006Sangkulirang, (c) Elementary School 007 Sangkulirang, and d)Elementary School 012 Sangkulirang. The research took place fromJanuary 2017 to July 2017. Data collection techniques throughinterviews, observations and documentation. Data were analyzedusing the Miles and Huberman analysis Model which is an interactivedata analysis consisting of three activities namely data reduction, datapresentation, and conclusion withdrawal. The results showed thatthrough the construction of school supervisors in the PWG activities,the school's supervision competence increased. The headmaster hasbeen able to make the supervision program properly, implementingsupervision with various techniques, whereas in the follow-up theprincipal has done it according to the needs. Construction of schoolsupervisors on PWG activities, making the atmosphere more relaxed,the principals motivated, discuss, brainstorm with supervisors andfellow school principals to solve the problems faced. Principalsdemonstrate a better work ethic and responsibility, unyielding toobstacles. In teaching and learning activities, they can direct teachersto innovate learning innovations. Obstacles are faced in the effort toimprove the performance of primary principal in Sangkuang IslandEast Kutai District is (a) The geographical location separated by thesea and the constraints, the weather caused the schedule of watchdogvisits is often delayed, (b) Teachers who are given additional duties asprincipals are partially not eligible to be the principal, seen from thepoint of competence or other requirements, this is done. Manyteachers who are not willing to become primary principals for remoteareas, (c) The school principal feels difficult to divide time because, inaddition to the task of managing the school, the school principal alsohas a teaching obligation as much as 6 hours of instruction.
Perception Teachers Civics the Implementation of the Curriculum
Authors: Elijah Liam
Published: January 2021

This study aims to: (1) describe the Civics teachers' perception of implementation of the curriculum 2013, (2) knowing the obstacles faced by teachers, (3) knowing the efforts of teachers to overcome obstacles and (4) knowing the opinions of Civics teachers for future improvement. The study population was all Civic Education teachers in State Junior High Schools in Samarinda City and the sample was target teachers who had trained and implemented the 2013 Curriculum. The sampling technique was purposive sampling. Data collection techniques: focused group discussion (FGD), interviews and questionnaires. The data analysis technique uses the percentage model while the measurement uses a modified Likert scale. The results showed: (1) the perception of Civics teachers in the implementation of the 2013 curriculum was quite poor because most teachers still had difficulty in implementing the 2013 curriculum; (2) obstacles faced: (a) the teacher has difficulty in determining the media in accordance with teaching and learning activities; (b) teachers find it difficult to implement project-based, problem-based and discovery-based learning methods due to time and cost constraints and lack of supporting facilities and infrastructure; (c) the recapitulation assessment is difficult every day because it is less specific. (3) Teachers' efforts to overcome obstacles: discussion among teachers ask the 2013 Curriculum instructors find the latest information through the internet and new published books, take part in training and carry out gradual assessments according to the teacher's understanding. (4) Civics teacher opinions for future improvement: the need for regular and continuous education and training, simplified assessment process, adequate facilities and infrastructure, reactivating MGMP (Subject Teachers' Consultation), continuous monitoring and evaluation after the Training is completed.
Creating a Collaborative Environment in Primary School Classes
Authors: Chi Shu-Fen , Chuan Yung
Published: January 2021

In the current context of educational content renewal, there are increasing demands on the competence of future teachers. Reforms in secondary education also require changes in the vocational education of future teachers. The relevance of improving the professional competencies of future teachers is also conditioned by the integration of national education into the global educational space. In this article the essence of such definition as “collaboration”, some features of organization of collaborative learning environment in the integral pedagogical process of the university are considered. The efficiency of creation of collaborative educational environment for revealing potential possibilities and professional competences of future teachers is revealed. The main emphasis is made on the importance of the facilitator's position in the organization of students’ collaborative activities. The influence of collaborative environment on the success of future teachers is justified.In the age of rapid development of knowledge-intensive technologies and comprehensive expansion of the information space, there is an urgent need to develop the spiritual and moral qualities of the individual, because in the realities of modernity there is a separation and isolation of a person from society, a crisis of spiritual development, the problem of lack of humanity is raised acutely, there is an alienation of young people from national and cultural values. In this connection, the society faces urgent tasks of development and preservation of human capital on the basis of renewal of the content of education, rethinking of its new humanitarian paradigm.