bluuebunny/crossref_metadata_2025 huggingface dataset:
Acute Compartment Syndrome of the Hand in a 14-Month-Old Child: A Case Report
Authors: Massaad Raymond , El Orra Said , Massaad Antonella , Makhour Farah , Orra Monah , Massaad Dounia
Published: January 2022

Background: Compartment syndrome is a well-known entity, but it is rare in the pediatric population, and its diagnosis is quite challenging. We report a case of an acute compartment syndrome (ACS) of the hand, developed after a crushing trauma, in a 14-month-old boy.
Case Report: A 14-month-old boy presented to the Emergency Department following a crushing trauma to his right hand. The patient had a progressive swelling of the right hand and agitation. On physical examination, the right hand was tense, swollen, with areas of skin necrosis and blisters, along with increased agitation upon palpation. Laboratory tests revealed elevated white blood cells, creatinine kinase, and erythrocyte sedimentation rate. Radiographic imaging showed deviated diaphyseal fractures in the second, third, fourth, and fifth metacarpals. A diagnosis of ACS of the hand was made. After draining the blisters, multiple fasciotomies were carried out to all 11 compartments of the hand. The metacarpal fractures were managed conservatively with a wrist splint for one month. A clinical and radiological follow-up after 7 months showed a complete functional recovery of the right hand and consolidation of the 2nd, 4th, and 5th metacarpal fractures, while the 3rd metacarpal fracture showed pseudoarthrosis.
Conclusion: Compartment syndrome of the hand in children is a rare condition, and its clinical picture may differ from that in adults, leading to a misdiagnosis or late diagnosis in many cases. Our case emphasizes the importance of a careful clinical evaluation in children post-trauma to diagnose such a condition.
Adsorption efficiency of sodium & calcium bentonite for ochratoxin A in some Egyptian cheeses: an innovative fortification model,in vitro andin vivo experiments
Authors: Hamad G.M. , El-Makarem H.A. , Elaziz A.I. Abd , Amer A.A. , El-Nogoumy B.A. , Abou-Alella S.A.
Published: January 2022

The incidence of the mycotoxin ochratoxin A (OTA) in cheeses constitutes a significant economic and health concern for producers and consumers alike. Recently, detoxification approaches using food additives to counteract mycotoxins have been widely recommended in the food industry. This study aimed to quantify OTA levels in some Egyptian cheese types, and experimentally determine the detoxification effect of bentonite bothin vitro andin vivo. The examined Roomy and Karish cheese showed higher OTA levels (4.138 and 3.399 μg/kg, respectively) than other cheeses. Calcium bentonite presented higher adsorption efficiency than sodium bentonite at all concentrations, both in phosphate buffered saline (PBS) and feta cheese, and at the whole pH range. Calcium bentonite concentrations (60 and 100 mg/ml) had much higher sequestering activity on OTA both in PBS and feta cheese, while the adsorption efficiency was higher at pH 6.8 than at pH 3. All enzymatic activities were near the control levels in rats treated both with OTA and bentonite compared with rats treated with OTA alone. The IC50 of calcium bentonite was 107.75 μg/ml, which was less cytotoxic than sodium bentonite (52.96 μg/ml). Bentonites were categorised by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) as excellent binders of OTA. The innovative calcium bentonite-fortified feta cheese showed the most superior sensorial properties; hence it can be predicted as a novel food-grade adsorbent for OTA sequestration.
Influence of Teacher Behaviors on Student Activities in Information-Based Classroom Teaching
Authors: Wang Linsheng
Published: January 2022

Under the background of teaching requirements comprehensively satisfied by information hardware, clarifying the influencing factors of teaching behaviors on student activities in the information-based teaching, as well as the influence mechanism. In this paper, a mediator model was established. Next, the collaboration degree in the teaching process was taken as the influencing factor and information monitoring was used as the mediating variable to discuss the effect of teaching behaviors on student activities in the classroom teaching process. Subsequently, the structural equation model (SEM) was used to mine the relationship between teaching behaviors and student activities and the influence on student activities. It was discovered that the overall Cronbach’s a value of questionnaires was 0.920, indicating a favorable questionnaire reliability; the KMO value was 0.916, which represents excellent questionnaire validity; three factors—teachers’ teaching behaviors, collaboration degree, and media monitoring—have shown positively strong correlations with student activities. The research results have provided realistic examination for enriching information-based classroom factors like teaching concepts, teaching resources and teaching quality, mine the existing problems and further provide reform orientation for promoting the high-efficiency development of information-based teaching, completing the effective engagement between information technology and specialized courses, and integrating abundant information-based teaching resources.
Research on the Influence of Invisible Knowledge Learning in Online Learning on Students’ Entrepreneurial Orientation
Authors: Jing Zhang
Published: January 2022

Knowledge management is the inevitable product of the information age, and knowledge transformation is the result of the interaction between network learners and learning resources. The four aspects of the SECI (Socialization, Externalization, Combination, Internalization) model can help students accelerate their learning of entrepreneurial tacit knowledge in e-learning to realize the construction of entrepreneurial knowledge with entrepreneurial orientation as the core. Based on the SECI model, this paper proposes four hypotheses on the effects of tacit knowledge learning on students’ entrepreneurial orientation in e-learning. It takes e-learning familiarity as the regulating variable and analyzes the regulating effect of tacit knowledge learning on students’ entrepreneurial orientation and whether their grade, discipline, and gender will lead to significant differences in entrepreneurial orientation. The results indicate that the questionnaire designed in this paper has generally effective α. The coefficient is 0.865 and the reliability level is good. The minimum value of the AVE (Average variance extraction) was 0.545 and the minimum value of CR (Combinatorial reliability) was 0.819, indicating that the overall validity and structural validity were high. The three aspects of sociality, dominance, and recessiveness cause the learning of tacit knowledge to have an obvious positive effect on students’ entrepreneurship. The results of this study have important reference value for promoting teachers’ entrepreneurial knowledge sharing and innovation and cultivating students’ entrepreneurial orientation.
Collaborative Filtering Recommendation of Online Learning Resources Based on Knowledge Association Model
Authors: Jia Henan , Yang Lifen , Cui Bo
Published: January 2022

Online learning platforms are prone to information overload, as they contain a huge number of diverse resources. To solve the problem, domestic and foreign scholars have focused their attention on personalized recommendation of learning resources. However, the existing studies perform poorly in the prediction of online learning paths, failing to clarify the overall knowledge system of students and the associations of resource knowledge. Therefore, this paper explores the collaborative filtering recommendation (CFR) of online learning resources (OLRs) based on knowledge association model. Firstly, the knowledge units were extracted from the semantic information of OLRs, and a knowledge association model was established for OLR recommendation. Next, a CFR algorithm was designed to couple semantic adjacency with learning interest, and used to quantify the semantic similarity of OLRs. The proposed algorithm was proved effective through experiments.
Felisa López, une réfugiée espagnole à Rennes en 1937
Authors: Botrel Jean-François
Published: January 2022

À partir de quelques photos et de la mémoire familiale, il s’agit de reconstituer, par une démarche de microhistoire, les conditions de l’accueil à Rennes, entre juin et octobre 1937, d’une réfugiée basque et de ses deux enfants, le comportement de l’administration et de la population, la vie quotidienne et le monde transitoire que Felisa López, née en 1907, partagea avec plus de 500 femmes et enfants contraints de quitter leur pays.
Education and Music
Authors: Georgiou Stalo , Papademetriou Christos
Published: January 2022

Music education as a systematic and complex process of transmitting knowledge and skills, as well as cultivating mental, intellectual, and artistic abilities, referred to a specific cultural result of an apprenticeship system. Music is also inextricably linked with the cultural and national identity of individuals as it offers a sense of self within a social context. It symbolizes and offers an experience of collective, social, and cultural identity. This study, through the analysis of the pertinent literature in a descriptive way, will try to prove that the position of music must be fundamental in education and therefore in the formation of human personality. The main conclusion of the chapter is the significant importance of the expression of children through music, the ability to express their musicality with the help of his body and voice, the perception of the concepts of music, as well as the development of a positive image and attitude towards music.
“I Can't Stop Singing”
Authors: Sullivan Pamela M.
Published: January 2022

There is a long history of research on theater and performance supporting literacy skills, especially fluency and comprehension. Most of this work is based on drama and plays and has been adapted to the classroom level in the form of Reader's Theater. Musicals, however, with their combination of acting, dancing, and singing, offer unique benefits to struggling literacy learners. This chapter will make the argument that modern musicals, particularly those rooted in popular culture and oriented toward children, allow for growth possibilities in all components of literacy.
Music Integration to Reduce Experiences of Foreign Language Classroom Anxiety in Early Childhood Education
Authors: Fortin Jennifer Yvette
Published: January 2022

Music and language are humanity's most powerful auditory symbol systems. They are connected neurologically early in life, develop similarly, and are linked academically. With communal function, similar learning processes, and neurological proximity, could the intersection of music and language each facilitate the other? This chapter explores the benefits of music integration in language learning, particularly to improve classroom affect and reduce students' experiences of foreign language anxiety (FLA). Exploring the benefits of integrative curriculum, music in the classroom, and language learning theory and methodologies, this work offers a theoretical foundation for further research. By illuminating the connection between music integration and positive classroom affect, further opportunities to develop and implement more effective linguistic classroom practices can improving education's impact in early childhood education.
Applicability of Digital Learning Strategy “Start Playing the Guitar!” in Solfeg.io Music Education App
Authors: Kazaka Lauma , Vilde Ilze
Published: January 2022

The digitalisation of the music classroom has accelerated the development of learning tools that correspond to the mindset and lifestyle of digital generation. Current pedagogical approaches emphasize a diverse and multifunctional use of technology to study music theory, learn to play instruments, and create music on and offline. Solfeg.io music education app is designed according to principles of smart pedagogy that include criteria for a meaningful use of technology in the study process. The app has been developed to meet didactic, cognitive, socioemotional, and technical requirements that create a customizable, user-oriented experience in a pedagogically justified study environment. The digital learning strategy “Start playing the guitar!” (DLS) is designed for students without prior knowledge of playing the guitar. The purpose of the paper is to study applicability of DLS in learning the basics of playing the guitar. The paper contains an analysis of theoretical literature on a technology-enhanced pedagogical process, including the ideas of smart pedagogy and the basic didactic principles for developing digital education tools. The empirical study on the use of DLS includes pedagogical observation, respondent surveys, and analysis and interpretation of the obtained qualitative data.
Using Digital Music Production as a Culture Catalyst
Authors: Kidd Emery
Published: January 2022

Digital music production is an invaluable marketing tool for entrepreneurs and academic institutions alike. Digital music production can universally cultivate academic success and foster entrepreneurial leadership. Using technological advances in inexpensive digital audio workstations, educators can produce educational content from student expression. Educators can encourage entrepreneurs by facilitating a creative culture within the academic environment. Entrepreneurs can promote a culture willing to support entrepreneurial pursuits by attracting target audiences to the entrepreneur's products' culture. The benefit of royalty payments from entrepreneurial endeavors solidifies an estate for the producer. Additionally, academic institutions have an opportunity to capitalize on the educational benefits of cultural inclusion associated with student self-expression while teaching skills that will benefit the student and institution alike.
Exploring the Collaborative Musical Experience of Swedish Bunne® Method in Japan
Authors: Fujibayashi Akiko
Published: January 2022

Universal design has been a timely and important research topic of our time both in the realms of music therapy and education. Bunne Method, Swedish music method, was developed by Sten Bunne in 1980 to overcome physical and social difficulties and age gaps by sharing musical ensemble experience. This qualitative study explores the collaborative musical experience of elderly people and children in Japan by implementing Bunne Method. Bunne instruments are made in universal design with a four string swing bar guitar, one string mini bass, chime bar, monophonic flute for the use of anyone regardless of music experience, handicap, etc. In music activities with Bunne instruments, human physical, psychological, and social nature are activated in a synergistic manner so that it also helps to create positive feelings and confidence and livelihood through the pleasure of playing music.
A Study on Blockchain Technology Implementation in the Logistics Sector of Pakistan
Authors: Amin Fahim Ul , Qianli Dong , Amin Wasim Ul , Zulfiqar Iram , Kanwal Shamsa
Published: January 2022

Blockchain technology provides a number of technological features, including high transparency, traceability, and trustiness. Its use in the logistics business increases technical support and ensures the logistics industry's effectiveness, as well as records, stores, and logistics information. The transmission ensures security, prevents logistics information from being distorted, and ensures the authenticity of logistics information. The use of blockchain technology in the logistics business has a positive impact on the industry's competitiveness and technical advantages. Blockchain has emerged as a key technology advancement with the ability to solve logistics problems. It's time for Pakistan to take advantage of this new technology. Blockchain has the potential to transform Pakistan's logistics sector.
Outsourcing Transportation Management
Authors: Amin Fahim Ul , Qianli Dong , Amin Wasim Ul , Zulfiqar Iram , Kanwal Shamsa
Published: January 2022

Transport management has significant importance in every organization. This chapter aims to evaluate the outsourcing decision of transportation management of an online shopping company. Recently, the company has witnessed significant growth in its operations, and it became inevitable to decide whether it continues outsourcing transportation management or go for insourcing as various problems are experienced due to outsourcing. The company has many logistics operations that include inbound receiving, warehousing, and outbound distribution. All the operations are considered and studied to understand the problem and objectives of outsourcing. In this chapter, a literature review regarding outsourcing transportation management is provided. Afterward, a research methodology is proposed and adopted, and then cost analysis is performed to check the feasibility concerning financial resources. Based on the cost analysis, it is decided to discontinue outsourcing transportation management. Some recommendations are also proposed for insourcing transportation management.
Token Image in Male-Dominated Professions and Occupational Segregation Based on Gender
Authors: Yilmaz Benan Kurt , Dalkilic Olca Surgevil
Published: January 2022

The aim of this study is to examine and understand the experiences of women who have token status in their profession based on the news reflected in national news agencies. In the study, 10 professions were determined, including military service, pilot, prison director, firefighter, driver, driving instructor, pumper, house painter/electrician/car mechanic, postal officer, fisher, where women are numerically a minority. The method of the research was determined as the qualitative research method, and the research design was determined as descriptive content analysis. It reaches conclusions about the occupational gender typing for women in Turkey. The research also tries to understand the roles attributed to these individuals in the context of occupations attributed to the female gender. Finally, images of women in the mentioned professions are also examined in terms of the way the news about token women is presented.
Women Entrepreneurs in the Eastern Region of Morocco
Authors: Boutkhil Soumia
Published: January 2022

Despite the various reforms undertaken by the state, women entrepreneurship in Morocco barely constitutes 10% of all businesses in the country whereas the average in the rest of Africa is of 24%. Based on these figures, this chapter seeks to study the evolution and characteristics of female entrepreneurship in Morocco. It examines the motivation behind an entrepreneurial project as well as the environment around it and the struggle to adjust to a male-dominated ecosystem. By exploring a few examples from the eastern region of the country, the study shows that entrepreneurship in Morocco is mainly urban, non-innovative, and merely of a subsistent nature. Indeed, women entrepreneurs, mostly in socially conservative regions (as is the case of the region under study), show a great adaptability to their socio-economic context. While enhancing their leadership skills, autonomy, and self-confidence, the business models adopted by women entrepreneurs focus on their own well-being and that of their families and community. Therefore, the indicators of success are not the usual business and profit growth, but financial autonomy coupled with family responsibility and well-being.
Critical Conceptualization of Women's Entrepreneurship
Authors: Seckin-Halac Duygu , Samur-Teraman Seray Begum
Published: January 2022

While women's entrepreneurship preserves its traditional entrepreneurial mission from a neo-liberal perspective, it has also been accepted as an essential tool in ensuring equality and empowering women with a gender perspective. It is seen that supranational institutions are trying to realize these two perspectives together, at least working in this direction. This study aims to conceptualize “women's entrepreneurship” and bring it to the agenda in Turkey form a gender perspective. Evaluating the literature on women's entrepreneurship from a historical perspective and examining the fundamental inequalities embedded in entrepreneurship, especially in a developing economy such as Turkey that still has structural gaps, is the study's main contribution.
Gamified Learning to Restore the Forest Landscape in Afghanistan
Authors: Busch Philipp
Published: January 2022

Implementing digital learning approaches in fragile contexts offers opportunities and challenges at the same time. The article describes an ongoing project by the German development cooperation organization GIZ (Deutsche Gesellschaft für Internationale Zusammenarbeit GmbH) with the target to reforest areas of Afghanistan and conduct corresponding capacity building activities in the country. The international and Afghan stakeholders are facing a variety of challenges such as threats on personal safety and security, connectivity, and electricity breakdowns as well as working with a partwise illiterate and digital illiterate target group. The three steps of the capacity building process of the project will be described and explained – the training of trainers, the training of the NGOs, as well as the training of the final target group. Elements of the digital training are gamified and adapted to the Afghan culture, specifically focusing on storytelling, roleplay, as well as social learning.
ERP Software and Practicing Auditors
Authors: Thottoli Mohammed Muneerali , Thomas K. V.
Published: January 2022

The purpose of the study is to find out Information Technology challenges facing by practicing auditors using measurement variables used in the Unified Theory of Acceptance and Use of Technology (UTAUT) model. This research study has adopted the sequential mixed method research in which the exploratory qualitative study is conducted with the qualified practicing auditors across Kerala to identify various Enterprise Resource Planning (ERP) software using in their audit firms. The results of this exploratory study are then empirically tested with the 321 respondents from qualified practicing-auditor accountants in Kerala using Structural Equation Modelling-Partial Least Squares (SEM-PLS). The findings reveal that there is a significant and positive relationship between variables used in the UTAUT model with practicing auditors. Thus, the results suggest that all the four constructs from UTAUT (performance expectancy, effort expectancy, social influence, and facilitating conditions) seem to be predominantly significant factors influencing practicing auditors.
Images and Text on PowerPoint Slides
Authors: Williams Joshua L. , McCarley Nancy , Willis Stephen D. , Huddleson Amber N.
Published: January 2022

In this study, the authors examined the impact of irrelevant visual images in a PowerPoint lecture on attention and information retention performance. They found students viewing text-only PowerPoint slides retained less information than students viewing text-and-image slides, but the difference did not reach significance. However, when examining both fixation counts and fixation duration, they found students viewing text-and-image PowerPoint slides who spent more time looking at the text retained more information. They discuss the impact of varied visual attention (moving back and forth from text to image) on information integration and retention and establish empirical questions for future research.
The Fairness Impact Assessment
Authors: Shelley Cameron
Published: January 2022

As modern life becomes ever more mediated by technology, technology assessment becomes ever more important. Tools that help to anticipate and evaluate social impacts of technological designs are crucial to understanding this relationship. This paper presents an assessment tool called the Fairness Impact Assessment (FIA). For present purposes, fairness refers to conflicts of interest between social groups that result from the configuration of technological designs. In these situations, designs operate in a way such that advantages they provide to one social group impose disadvantages on another. The FIA helps to make clear the nature of these conflicts and possibilities for their resolution. As a broad, qualitative framework, the FIA can be applied more generally than specifically quantitative frameworks currently being explored in the field of machine learning. Though not a formula for solving difficult social issues, the FIA provides a systematic means for the investigation of fairness problems in technology design that are otherwise not always well understood or addressed.
Su alcune dimensioni del suicidio. Il caso dell'Emilia-Romagna.
Authors: Cantoni Lorenzo
Published: January 2022

Nell'articolo si affronta il problema del suicidio muovendo dal caso specifico dell'Emilia-Romagna, la regione italiana con il maggior numero di suicidi. La differenza tra i dati nazionali e quelli emiliani denotano, inoltre, una divergenza che conosce nell'ultimo periodo il suo picco massimo: non solo in Emilia-Romagna ci si suicida percentualmente di più, ma con un incremento maggiore rispetto a quello medio del Paese. Per l'analisi del fenomeno, l'Autore indica due percosi: l'exitus e il reditus. Il primo propone alcune interpretazioni di carattere socio logico, psicologico e filosofico. Riprendendo il frame durkheimiano, si nota come il suicidio si accompagni a fenomeni di disgregazione, o di indebolimento, a livello di tutte le diverse comunità in cui la persona vive: familiare, religiosa, sociale, economica, politica. L'analisi della dimensione psicologica rivela l'esistenza di una sindrome presuicidale, caratterizzata da tre aspetti: chiusura esistenziale, autoaggressività repressa, fantasie suicide. La dimensione filosofica favorevole al suicidio è indicata come quella mentalità che attribuisce all'uomo ogni potere sulla propria vita. Il secondo cammino, di reditus, intende disegnare un percorso di uscita, di allontanamento dal suicidio, riandando ai tre livelli- sociale, psicologico e filosofico/religioso - che la prima analisi ha mostrato importanti per la comprensione del fenomeno.
Trasferimento sperimentale del nervo ulnare sull'arto inferiore: aspetti medico-legali ed etici
Authors: Conti Adelaide
Published: January 2022

L'Autore, prendendo spunto da un caso di sperimentazione chirurgica giunto all'esame del Comitato Etico (CE) degli Spedali Civili di Brescia, analizza le problematiche etiche inerenti a tale pratica medica. Consapevoli del fatto che ogni caso clinico rappresenta una sperimentazione, l'attenzione è rivolta all'ambito chirurgico, che ha come principale scopo l'apporto di un beneficio per il paziente fruitore del trattamento "nuovo". Dapprima vengono considerati i principi generali eticamente validi applicabili alla sperimentazione; in particolare il principio di beneficità, owero di non maleficienza e il principio di autonomia. In un secondo momento viene esaminato il caso clinico proposto al CE. E' proposta una tecnica chirurgica da effettuare su pazienti paraplegici: il trasferimento del nervo ulnare con le sue tre branche motrici sui nervi dei muscoli grande gluteo, medio gluteo, retto anteriore. Tale sperimentazione ha lo scopo di consentire la deambulazione usando apparecchi di ortesi dal ginocchio in giù. I problemi etici che emergono sono numerosi: in primis è rilevante il fatto che la sperimentazione effettuata solamente su animali non è priva di incognite. In secondo luogo i principi fondamentali dell'etica non sono rispettati e, non ultimo, il rapporto medico-paziente   notevolmente trascurato. In tal senso i CE si pongono come "intermediari" in questa relazione che sottende numerose problematiche. L'etica della sperimentazione deve in tal modo essere verificata in rapporto al paziente in quanto persona con le sue peculiarità.
Openness and topic avoidance in interpersonal communication about ovarian cancer: An uncertainty management perspective
Authors: Tetteh Dinah A. , Akhther Najma
Published: January 2022

This study examined openness and topic avoidance in interpersonal communication about ovarian cancer. Guided by the uncertainty management theory, the researchers analyzed qualitative data from 28 ovarian cancer patients/survivors and found openness and topic avoidance to be complex communication behaviors which are connected to patients/survivors’ uncertainty. Participants appraised uncertainty about disease prognosis and effectiveness of treatments as a threat; thus, they avoided topics such as treatment side effects and fears about death and disease recurrence to manage such uncertainty. Furthermore, findings showed that communication about ovarian cancer is layered with degrees of openness and avoidance relative to respective audiences and changing illness trajectories. Overall, the findings indicate connections between interpersonal communication about ovarian cancer and uncertainty management practices, suggesting that intervention efforts should help cancer patients/survivors and relational others practice sensitivity when discussing topics such as death and dying.
The The Difficult Case Consultation: An intervention for interprofessional health communication
Authors: Foster Elissa , Baglia Jay
Published: January 2022

An interprofessional group of healthcare practitioners sought a new approach to the early detection, prevention, and resolution of “difficult cases” in the inpatient care context. An action research project addressed this need by developing a narrative re-framing tool that helped reveal entrenched assumptions regarding the root causes of difficult cases in the hospital. The intervention method that emerged from the project — the Difficult Case Consultation (DCC) — is a theoretically-grounded process that helps teams to analyze and address complex communication problems in interprofessional healthcare contexts. Collaborative processes grounded in theory have proven to be the most successful when seeking to optimize healthcare team communication. The article describes the collaborative development of the DCC, presents two cases illustrating the process, and describes systemic factors that exacerbated the emergence of difficult cases in the inpatient context.
Expanding unilateral lung collapse using airway pressure release ventilation applied independently to the collapsed lung through the double-lumen endotracheal tube
Authors: Saghaei Mahmoud
Published: January 2022

Unilateral lung collapse (ULC) is a clinical challenge in the intensive care unit and requires sophisticated treatment approaches, especially if the collapse continued over several hours. If not responded to ordinary measures such as postural drainage and bronchoscopy, it may require insertion of a double-lumen endotracheal tube and independent lung ventilation or high-pressure manual re-expansion of the collapsed lung which may result in lung injury. In this article, a safe and gradual re-expansion method using airway pressure release ventilation is presented for the treatment of a ULC.
Exact structures for operator modules
Authors: Mathieu Martin , Rosbotham Michael
Published: January 2022

We demonstrate how exact structures can be placed on the additive category of right operator modules over an operator algebra in order to discuss global dimension for operator algebras. The properties of the Haagerup tensor product play a decisive role in this.
The management of posterior epistaxis in the United Kingdom, a national survey
Authors: Mowat A. , Meakin P. , Anastasiadou S. , Bidaye R. , Anari S.
Published: January 2022

Background: Posterior bleeds account for 5% of epistaxis. The patient cohort is often elderly and has significant co-morbidities. Such cases have been managed historically with urinary catheters, held in place with umbilical clips. Recently bespoke, double balloon, posterior packs have been utilised. The treatments remain in clinical equipoise with no gold standard or clear national guideline. Methodology: A ten question survey was sent out through www.surveymonkey.com. Attempts were made to contact all Trusts in the United Kingdom via the ENT on call service. A comparison of treatment costs was made. Results: 112 responses have been received. 54% of respondents reported a preference for bespoke posterior pack insertion, only 12% preferred catheters. Twice as many respondents have seen complications from urinary catheters: 14% vs 29%. The availability of posterior packs is inconsistent: 30% of respondents were not aware of the packs or reported them unavailable in their hospital. Conclusions: This survey provides the first comparison of the techniques in the United Kingdom. Bespoke packs have a lower complication rate and are preferred by ENT clinicians on the front line of patient care. We recommend that all UK trusts should stock posterior packs which should be used as first line treatment for cases of posterior epistaxis.
Конструктивная квазиклассическая асимптотика связанных состояний графена
в постоянном магнитном поле с малой массой
Authors: Anikin Anatolii Yur'evich , Rykhlov V V
Published: January 2022

Работа посвящена конструктивным квазиклассическим асимптотикам собственных
функций оператора Дирака, описывающего графен в постоянном магнитном поле.
Рассматриваются два случая: (а) сильного магнитного поля, и (б) радиально
симметричного электрического поля и малой массы. Стандартными квазиклассическими
методами задача сведена к пучку магнитных операторов Шрeдингера с поправкой.
В обоих случаях классическая система, определяемая главным символом, оказывается
интегрируемой, однако поправка интегрируемость разрушает. В случае (а), где
поправка снимает вырождение частот (резонанс), с помощью метода усреднения мы
сводим задачу к интегрируемой системе не только в главном приближении, но и
с учетом поправки. Торы полученной системы порождают серию асимптотических
собственных функций исходного оператора. В случае (б) система, определяемая
главным символом, невырождена. Фиксируя у этой системы инвариантный тор
с диофантовыми частотами и отыскивая для него решение уравнения переноса,
мы получаем серию асимптотических собственных функций, находящихся во взаимно
однозначном соответствии с торами, удовлетворяющими правилу квантования
Бора-Зоммерфельда и лежащими в малой окрестности выбранного диофантова тора.
В обоих случаях построение асимптотик собственных функций опирается на глобальное
представление через функцию Эйри и ее производную для канонического оператора
Маслова на двумерном торе, проецирующемся на конфигурационное пространство
в кольцевидную область с двумя простыми каустиками. Эффективность полученных
формул продемонстрирована их численной реализацией на примерах.
Библиография: 27 названий.
Замечание к теоремам об обобщенном сжатии
Authors: Zhukovskiy Evgeny Semenovich
Published: January 2022

Настоящая работа посвящена оценкам неподвижной точки обобщенно сжимающего
(в смысле определений Браудера и Красносельского) оператора $G$,
действующего в полном метрическом пространстве $(X,\rho)$.
Получены верхняя и нижняя оценки расстояния $\rho(x_0,\xi)$
от произвольной $x_0 \in X$ до неподвижной точки $\xi$
оператора $G$. В случае "обычного" $q$-сжатия ($0\leqslant q<1$)
следствием полученной в работе верхней оценки является неравенство
$$
\rho(x_0,\xi)\leqslant {(1-q)}^{-1}{\rho(x_0,G(x_0))}
$$
из теоремы Банаха, а нижней оценки - неравенство
$$
\rho(x_0,\xi)\geqslant {(1+q)}^{-1}{\rho(x_0,G(x_0))}.
$$
Также для обобщенно сжимающего оператора получены
оценки расстояния $\rho(x_0,x_i)$ от $x_0$ до $i$-ой итерации $x_i$
(определяемой рекуррентным соотношением $x_j=G(x_{j-1})$,
$j=1,…,i$). На основании полученных оценок доказана
теорема о неподвижной точке оператора,
удовлетворяющего локальному условию обобщенного сжатия.
Библиография: 14 названий.
Hirshfeld surface analysis and quantum chemical study of molecular structure of phosphate
Authors: Rafik A. , Zouihri H. , Guedira T.
Published: January 2022

ABSTRACT. In this present study, Density fuctional theoretical computations are performed at (B3LYP, PBEPBE), HF and MP2 level with 3-21G basis sets to derive optimized geometry and bonding features. The calculated geometrical parameters have been compared with experimental data. The intermolecular O–H…O and N–H…O hydrogen bonds are involved in crystal structure stabilization. An intramolecular O–H…N hydrogen bond is observed between the phosphate OH group and the N atom. Further, the molecular Hirshfeld surface analysis was carried out to reveal the nature of intermolecular contacts and the fingerprint plot provides the information about the percentage contribution and reveals that the O…H (44.1%) interactions have the major contribution to form the crystal. The Mulliken population analysis and the HOMO-LUMO energy gaps show that the molecule has a good stability and from the calculation, we conclude that the molecule is really hard materials.

                   

KEY WORDS: Energy gaps, Hydrogen bonds, Hirshfeld surface, Mulliken population, Phosphate

 

Bull. Chem. Soc. Ethiop. 2021, 35(3), 625-638.

DOI: https://dx.doi.org/10.4314/bcse.v35i3.13
MICE Tourism Policy and Strategy Responses in Managing the Impact of COVID-19 Pandemic
Authors: Lekgau Refiloe Julia , Tichaawa Tembi Maloney
Published: January 2022

The current study explores the policy and strategy responses deployed by South African MICE (meetings, incentives, conferences, and exhibition) tourism governing bodies and industry associations in managing the impact of COVID-19 on the industry. Following a qualitative approach, interviews were held with representatives of the MICE sector, including industry, association, and government representatives. The results show that while financial assistance had been the initial policy response, the inconsistencies with the temporary relief funds (TERS) had been a challenge for members of the MICE industry. Also, the MICE tourism bodies had to realign their key policies to the industry's transition to virtual and hybrid events. Further, transformation within MICE tourism has been a central focus in rebuilding tourism post-COVID-19. The current study illustrates both the short-term and long-term tourism policy and strategy responses, which had moved from mitigation to resilience building.
La Práctica del Periodismo Investigativo en el Noticiero de Radio Récord
Authors: Loor-Baquerizo Sheyla Carolina , Maldonado-López Sandra Betzabeth
Published: January 2022

El papel que desarrollan los medios radiales no debe ser solo el de relatar y comentar los acontecimientos de actualidad, por lo contrario, al ser un medio que cuenta con la credibilidad y aceptación de poder difundir una noticia, debe de contar con un proceso de investigación. El presente artículo académico se realizó mediante una investigación descriptiva, un enfoque cualitativo, con un diseño no experimental, transversal, orientado hacia la exploración, la descripción y el entendimiento, a través de entrevistas y una observación no participante en el noticiero ‘‘El Informativo tras la Noticia’’ de Radio Récord, con el objetivo de analizar la práctica del periodismo investigativo de los periodistas de la localidad, considerando el tratamiento que se le da a la información antes y después de ser emitida, y la contrastación de información que se desarrolla en este medio de comunicación radial. Los resultados reflejan la falta de investigación profunda en el noticiero, al ser un medio que se maneja a través de la inmediatez, no realizan un proceso de verificación de datos de manera exhaustiva, y a su vez se evidencia la poca práctica del periodismo investigativo, sin embargo, cumple en su mayoría con las características del periodismo tradicional.

Palabras claves: Periodismo Investigativo, periodistas, radio, noticias, medios de comunicación.
THE MINOR SUGAR-CANE INSECTS OF PORTO RICO
Authors: Wolcott George N.
Published: January 2022

Resumen en inglés.
THE STATUS OF PLANT PATHOLOGY IN PORTO RICO
Authors: Cook Melville T.
Published: January 2022

Resumen en inglés.
SUGAR-CANE CULTIVATION
Authors: Earle F. S.
Published: January 2022

Resumen en inglés.
MOSAIC INVESTIGATION AT CENTRAL CAMBALACHE - PRELIMINARY REPORT
Authors: Chardón Carlos E.
Published: January 2022

Resumen en inglés.
ON THE AMOUNT OF FOOD EATEN BY INSECTS
Authors: Wolcott George N.
Published: January 2022

Resumen en inglés
The potential of Mimosa pudica L as an α- glucosidase inhibitor and antioxidant agent
Authors: Afham Muhamad , Teruna Hilwan Yuda , Hendra Rudi
Published: January 2022

Background: The putri malu plant (Mimosa pudica L.) is a South American and Central American native widely distributed throughout Indonesia. Indonesians utilise this plant as a herbal treatment to treat various ailments, including insomnia, acute eye inflammation, stone pee, fever, worms, bronchitis, and herpes.   

Objectives: This plant was studied for its antioxidant and α-glucosidase inhibitory activities using n-hexane, dichloromethane, ethyl acetate, and water extracts.    

Method: The aerial part of the plant was extracted with methanol and partitioned with n-hexane, dichloromethane (DCM), and ethyl acetate to obtain n-hexane (EHMP) dichloromethane (EDMP), ethyl acetate (EEMP), and water (EAMP) extracts. All extracts were analysed for their α-glucosidase inhibitor and antioxidants with the free radical scavenging activity method using DPPH.    

Results: EAMP showed antidiabetic activity with inhibition of 69.9% at a concentration of 500 ppm, and other extracts showed no α-glucosidase inhibition activity. For antioxidant activity, EDMP, EEMP, and EAMP showed relatively high activity with IC50 consecutively 77.4 ppm, 26.9 ppm, and 81.4 ppm, while EHMP had a reasonably low activity with IC50 635.6 ppm.   

Conclusion: The study results showed that M. pudica has considerable potential as a source of antidiabetics and natural antioxidants, so it is necessary to isolate secondary metabolites from the species.
política contra el capital. De la teoría clásica del plusvalor a la lingüistificación de Boris Groys
Authors: Narváez León Angelo
Published: January 2022

En este artículo analizaremos uno de los múltiples recorridos de la crítica y de la política marxista, en la que se cruzan las interpretaciones de la teoría marxiana el plusvalor con la posibilidad de una derivación política de su lectura. Para ellos abordaremos tres grandes momentos de ese recorrido, desde la popularización de la lectura clásica del plusvalor, hacia el surgimiento de las lecturas divergentes dentro de los marcos comunes del marxismo para, finalmente analizar las hipótesis de Boris Groys sobre la subversión del orden lingüístico-representacional de la contradicción capital-trabajo.
uso de las Redes Sociales como instrumento de campaña electoral
Authors: Dorado Sánchez Antonio
Published: January 2022

Desde la aparición de la llamada Web 2.0 en los años noventa, las Redes Sociales se han convertido en un elemento central de las campañas electorales a nivel mundial. Sin embargo, su uso y carácter decisivo no siempre ha sido el mismo, sino que ha ido evolucionando conforme se han ampliado los recursos técnicos disponibles. En este artículo se analiza la influencia y el uso que se ha hecho de las Redes Sociales a nivel electoral a través de las últimas ocho campañas presidenciales estadounidenses (1992-2020), así como sus retos de futuro.
Sistemas de vida indígenas y positivización constitucional en América Latina: superación de la colonialidad jurídico-política, luchas y prácticas de los bienes comunes
Authors: De Carvalho Dantas Fernando Antonio
Published: January 2022

Este artículo aborda los procesos culturales y sociopolítico-jurídicos de reconocimiento de dos derechos de los pueblos indígenas latinoamericanos. El derecho monista como producto cultural occidental negó y destruyó vidas, prácticas, instituciones y pensamientos diferenciados, hegemonizando cosmovisiones y epistemes coloniales. Movimientos críticos orientados a la acción de la reflexión desvelan esta violencia institucionalizada, desencadenando procesos de constitucionalización multicultural, pluricultural y plurinacional que promueven la lucha por positivación de formas de ser, conocer y actuar comunitários propios de los sistemas de vida indígenas basados en el buen vivir (sumak kawsay, suma qamaña y ñandereko). El Nuevo Constitucionalismo Latinoamericano recupera el carácter democrático y liberador de dos derechos.
Sperone Speroni y la defensa humanista de la lactancia materna
Authors: Martín Clavijo Milagro
Published: January 2022

En el Discorso del lattare i figliuoli dalle madri (1542) el humanista italiano Sperone Speroni aborda un tema de interés en el Renacimiento: si las mujeres deben amamantar a sus hijos o dejarlos en manos de una ama de cría. Se parte del análisis de este texto y se confronta con los de otros humanistas del siglo XIV –Francesco de Barbaro y Leon Battista Alberti– y del XV –fundamentalmente Erasmo de Rotterdam, pero también Juan Luis Vives, Fray Luis de León, Pedro de Luján y Antonio de Guevara– para poder entender cómo la defensa de la lactancia materna es uno de los elementos clave del nuevo concepto de familia y de madre en la sociedad moderna.
Nuevas propuestas para la crítica literaria feminista: de la "critica delle varianti" a la ginogenética
Authors: Moreno Lago Eva María
Published: January 2022

El presente artículo realiza un recorrido por los planteamientos de la crítica de las variantes y la genética textual que se acercan a los borradores, manuscritos o textos no publicados. Esta rama de la filología ha propuesto nuevas vías de acercamiento y estudio de las obras canónicas ofreciendo información desconocida que había permanecido en el ámbito privado del texto. Sin embargo, todavía no se ha realizado una mirada de esta disciplina desde la óptica de la crítica literaria feminista. Por ese motivo, este estudio indaga en las nuevas propuestas que se pueden plantear en el análisis tanto de las obras canónicas como de los textos inéditos al fusionar las metodologías de la genética textual y la ginocrítica, otorgando una nueva denominación a esta línea de investigación y trabajo: la ginogenética.
voci delle intersezioni: Postcolonialismo e femminismo
Authors: Duraccio Caterina
Published: January 2022

All’inizio degli anni ’80 nell’Università di Delhi, un gruppo di studiosi si riunisce per riflettere sulle relazioni tra Occidente ed Oriente. Il collettivo nato dallo storico Ranajit Guha, prende il nome di Subaltern Studies, richiamando le teorie gramsciane sulla subalternità. L’analisi dei rapporti di dominio e soggezione tra coloni e colonizzati è centrale nello sviluppo di queste nuove teorie postcoloniali. I protagonisti di questo fervente dibattito non circoscrivono il postcolonialismo dentro precisi confini geografici: la condizione postcoloniale è principalmente ideologica, poiché nasce come prodotto delle relazioni e dei processi storici di colonizzazione. All’interno dei Subaltern Studies, la studiosa Gayatry Chakravorty Spivak (1985) si interroga sull’assenza del soggetto femminile nel discorso dei suoi colleghi, ponendo una domanda fondamentale per la teoria postcoloniale e per la teoria femminista: “La subalterna può parlare?” (1988). La donna appare un soggetto ventriloquizzato e costantemente rappresentato e definito dallo sguardo dell’altro. Spivak centra l’attenzione sul bisogno di autodeterminazione del soggetto femminile. Alla voce della filosofa indiana fanno eco le femministe chicanas e afroamericane, che dagli Stati Uniti reclamano un femminismo che tenga conto di tutte le subalternità che agiscono sul corpo femminile, prima fra tutte la razza. La declinazione dell’intersezione tra sesso, razza e classe assume un ruolo fondamentale sia nella teoria postcoloniale che in quella femminista. Nel presente lavoro si analizzano le principali rivendicazioni e le strategie di resistenza usate dalle voci delle subalterne, che marcano alcuni momenti di incontro/confronto tra femminismo e postcolonialismo.