bluuebunny/crossref_metadata_2025 huggingface dataset:
COVID-19 and Student Well-being: Stress and Mental Health during Return-to-School
Authors: Schwartz Kelly Dean , Cortens Deinera Exner , McMorris Carly , Makarenko Erica , Arnold Paul , Van Bavel Marisa , Williams Sarah , Canfield Rachel
Published: December 2020

Students have been multiply impacted by the COVID-19 pandemic: threats to their own and their family’s health, the closure of schools, and pivoting to online learning in March 2020, a long summer of physical distancing, and then the challenge of returning to school in fall 2020. As damaging as the physical health effects of a global pandemic are, much has been speculated about the “second wave” of mental health crises, particularly for school-aged children and adolescents. Yet, few studies have asked students about their experiences during the pandemic. The present study engaged with over two thousand (N = 2,310; 1288 female; Mage = 14.5) 12-18-year-old Alberta students during their first few weeks of return-to-school in fall 2020. Students completed an online survey that asked about their perceptions of COVID-19, their fall return-to-school experiences (84.9% returned in-person), their self-reported pandemic-related stress, and their behaviour, affect, and cognitive functioning in the first few weeks of September. The majority of students (84.9%) returned to school in person. Students reported moderate and equal concern for their health, family confinement, and maintaining social contact. Student stress levels were also above critical thresholds for 25 percent of the sample, and females and older adolescents (age 15-18 years) generally reported higher stress indicators as compared to males and younger (age 12-14 years) adolescents. Multivariate analysis showed that stress indicators were positively and significantly correlated with self-reported behavioural concerns (i.e., conduct problems, negative affect, and cognitive/inattention), and that stress arousal (e.g., sleep problems, hypervigilance) accounted for significant variance in behavioural concerns. Results are discussed in the context of how schools can provide both universal responses to students during COVID-19 knowing that most students are coping well, while some may require more targeted strategies to address stress arousal and heightened negative affect.
Pre-pandemic Autonomic Nervous System Activity Predicts Well-being during COVID-19 in Israel
Authors: Gordon Ilanit , Horesh Danny , Tomashin Alon , Milstein NIr , Mayo Oded , Korisky Adi
Published: December 2020

Despite the unfolding impact of the COVID-19 pandemic on psychological well-being, there is a lack of prospective studies that target physiological markers of distress. There is a need to examine physiological predictors from the pre-pandemic period to identify and treat individuals at-risk. Our aim was to use pre-pandemic markers of Autonomic Nervous System (ANS) parasympathetic and sympathetic regulation, to predict individuals' psychological well-being during the crisis. We also assessed the role of emotion regulation as a mediator of the association between pre-pandemic physiological measures and COVID-related well-being. In May-June 2020, 185 Israeli adults completed online questionnaires assessing their emotional regulation of negative affect since COVID-19 began, and their current well-being. These individuals had participated in lab studies 1.5-3 years prior to this assessment, where their physiological measures were taken, including Respiratory Sinus Arrhythmia (RSA) and Skin Conductance Level (SCL). RSA was positively related to emotion regulation during COVID-19. Emotion regulation, in its turn, positively predicted well-being during the crisis. The mediation was significant and moderated by SCL (index=-0.09, 95%CI [-0.02, -0.0001]), such that it was strongest for individuals with low SCL. We point to pre-pandemic physiological mechanisms underlying individuals' mental well-being during the COVID-19 pandemic. These findings have theoretical, diagnostic, and clinical implications that may refine our understanding of the physiological basis of resilience to the current pandemic, and thus may be implemented to identify and assist individuals in these times.
Prevalence and Pattern of Cardiovascular Diseases among ESRD Patients Undergoing Short Term and Long Term Hemodialysis
Authors: Shrestha Manoj , Aryal Prakash
Published: December 2020

Background: Cardiovascular diseases (CVD) are the major causes of mortality and morbidity among End Stage Renal Disease (ESRD) patient undergoing hemodialysis (HD). The cardiovascular diseases in dialysis patient is related to chronic volume overload, anemia, inflammation, oxidant stress, homocysteine and other aspects of the uremic milieu. The duration of ESRD undergoing dialysis is related to the severity of cardiovascular diseases. The objective is to study the pattern of cardiovascular disease among the ESRD patient undergoing dialysis.

Methods: This comparative study was done at Collage of Medical Sciences Bharatpur, Nepal from 1st June 2020 to 30th July 2020. This study included total number of 300 dialysis patients divided into two groups; 150 patients undergoing dialysis for less than one year and rest undergoing dialysis for more than one year. Patients with primary heart disease were excluded from study. Patients were evaluated with demographic data, clinical history, and physical examination with focus on cardiovascular system, lab investigations, electrocardiography (ECG) and echocardiogram variables. The pattern of cardiovascular diseases was compared among patients undergoing short term and long term hemodialysis.

Results: The echocardiographic evaluation of the cases under study revealed a diversity of pattern. In this study concentric or eccentric LVH was found in 60 %( n=90) of patients with short-term hemodialysis and 75 %( n=112) of patients with long-term hemodialysis. 30 %( n=45) of patients with short-term hemodialysis had degenerative/atherosclerotic valvular heart disease while the number was 35%(n=52) in patients undergoing long-term hemodialysis. Pericardial effusion was present in 9 %( n=13) of short-term hemodialysis patient and in 5%(n=7) of long-term hemodialysis patient. 18%(n=27) of short-term hemodialysis patient had systolic dysfunction while such change was present in 27%(n=40) of long-term hemodialysis patient. Diastolic dysfunction was present in 35%(n=52) of short-term hemodialysis patient and 49%(n=73) of long-term hemodialysis patient. Pulmonary Artery Hypertension(PAH) was present in 20%(n=30) of short term hemodialysis patient and 32%(n=48) of long term hemodialysis patient. Atrial fibrillation was present in 7 %(n=10) of short-term hemodialysis patient and 5%(n=7) of long term hemodialysis patients.      

Conclusions: Variety of cardiovascular diseases are common in ESRD patient undergoing hemodialysis. CVD is more prevalent in patient undergoing hemodialysis for long term.
6. A Search Through the Archives: Looking for the Young and the Old in a Museum's Collections
Authors: Denham Sean , Høgestøl Mari , Lillehammer Grete
Published: December 2020

The chapter details research conducted as part of the BEVARES (Biological EnVironmental and Archaeological interdisciplinary RESearch on life-course, material and materiality in human depositions) programme at the Museum of Archaeology, University of Stavanger. Initially an attempt to gain a better understanding of the museum’s archived bone material, as well as evaluate the information potential of analysing/re-analysing the (primarily) burnt/cremated bone within that material, the work moved towards identifying evidence for the young and the old in the burial record. This led to an interest in the intersection of the young and the old in the burial record as a potential new area of archaeological study. The current project focuses on burials of these two groups. Bronze and Iron Age bone assemblages from Rogaland county, southwestern Norway, are included in the study. A variety of factors were quantified, but the age of the individuals and the number of people per burial are of primary relevance here. Initial results have revealed some interesting trends – the number of sub-adults in the burial record is much greater than previously thought, and the mortality pattern seen in Rogaland is quite different from that evident in comparable material from Eastern Norway. The occurrence of young and old individuals in the same burial context does not appear to be a common phenomenon.
Interesting Times, Indeed: Reflections on the Last Decade at the Toronto School of Theology
Authors: Macdonald Stuart
Published: December 2020

[Figure: see text]

The last decade has seen dramatic changes within the Toronto School of Theology (TST). This article explores these changes, beginning with three external forces: a less optimistic view of ecumenism, increasing cultural polarization, and the commodification of education. It then shifts to consider the internal forces that have been considered the primary drivers of change by many members of the TST faculty, specifically the responses to accreditation reviews by the Association of Theological Schools in 2011 and the 2012 University of Toronto Quality Assurance Process (UTQAP). The responses, including the creation of a new PhD in theological studies in response to UTQAP, are detailed and analyzed. These responses absorbed enormous energy within TST, and while they created a successful program, they also led to unintended consequences. TST has become a very different theological consortium than it was on it fortieth anniversary, let alone when it was founded.
TST’s Jubilee Year—A Celebration of Its Doctoral Alumni
Authors: Skira Jaroslav Z.
Published: December 2020

The following is a collection of reflections by doctoral alumni that contribute to the celebration of the fiftieth anniversary of the Toronto School of Theology (TST). These reflections indicate how studies at TST have played a significant role in shaping their education and direction as scholars in diverse fields of theological studies and/or theological educators at TST, the University of Toronto, or elsewhere.
For the Future, the Past: LGBT2Q Theatre, Performance, and Scholarship in Canada
Authors: Halferty J. Paul
Published: December 2020

In her introduction to Queer Theatre in Canada, Roz Kerr notes the dearth of historical work in the field: “It is really only in the mid-nineties that articles dealing with queer theatre pertaining to English Canadian scholars and theatre practitioners/spectators begin to appear” (viii). The extant scholarship on queer Canadian theatre and performance in English, which Kerr brings together admirably in her anthology, coincides with the rise of queer politics and theory as social and political formations, and, importantly, as a scholarly approach in the early 1990s. The essays in her anthology are a testament to this academic trend. Of the twenty-one articles only two were published before 1994, and among these at least eleven are “queer” in their methodology, theoretical framework, or focus—including my own contribution. Kerr suggests that her “volume has a heavy concentration on the last fifteen years in recognition that queer theatre really only begins during the 1990s” (viii). This point is important. Kerr differentiates “queer” theatre from earlier gay and lesbian theatre, noting: “By the early 1990s the term queer replaced gay and lesbian in recognition of the need to move beyond the identity politics they implied” (viii). While queer did not exactly replace gay and lesbian, the need for the term and the political and theoretical positionality it denoted was brought about by a set of historical forces: in the late-1980s and early 1990s, inspired by post-structuralist theories of identity, debates about the limits of identity politics, and in the wake of the AIDS crisis, the term was reclaimed and redeployed within specific social, political, and scholarly contexts in the Anglo-American world (queer theory and politics did not, for example, take firm hold in francophone Quebec). Similarly, in a number of scholarly fields, but especially in literary, theatre, and performance studies, queer theory became a highly productive rubric and approach in the 1990s, precipitating a wide array of important research. But what of the lesbian, gay, bisexual, trans, two-spirit, and queer (LGBT2Q) theatre and performance produced in Canada before the 1990s? 1 Without sounding cliché, how are Canada’s LGBT2Q theatre and performing artists, as well as its scholars and students, to understand the present, and to map out the future, when so very little is known about our individualized and collective pasts?
Queer Isn’t a Choice! Queer Is My Family!
Authors: Baer Pamela
Published: December 2020

Dans cet article, Pamela Baer examine comment des jeunes ayant des parents LGBTQ2S+ se sont engagés dans l’écriture d’une chanson inédite lors d’une formation à la diversité des genres et des sexes offerte dans le cadre d’un projet de recherche en théâtre appliqué. Le processus s’est avéré révélateur et très personnel et a permis de créer un espace puissant pour l’exploration de soi et l’élaboration d’un effort de sensibilisation mené par les jeunes. Les participants à la formation étaient d’avis qu’il faut célébrer, accepter et assumer l’identité queer. Qu’il ne s’agit pas d’une identité marginale que l’on doit remettre en question et expliquer, mais plutôt d’un lieu incarné d’où l’on peut émerger et devenir. La chanson composée dans le cadre de l’atelier célèbre les situations familiales uniques tout en laissant entendre que chaque personne est différente à sa manière. Ainsi, l’écriture de chansons comme pratique affective a amené les participants à réorganiser leur monde de manière subversive et autonomisante. L’émergence de possibilités nouvelles s’est matérialisée en plaçant au cœur du processus les histoires des jeunes participants qu’ils avaient eux-mêmes écrites et qui étaient destinés à leurs semblables, et ce, tout en naviguant les tensions liées à la paternité de l’œuvre, l’esthétique et la pédagogie.
Nutrition Education Seminars for Prostate Cancer—Diet and Prostate Program: Evaluation and Recommendations (DAPPER Study)
Authors: Stringer Eleah J. , Sidhu Satnam , Austin Karina , Cosby Cheri
Published: December 2020

Nutrition is important for prostate cancer (PCa) care as it may influence PCa progression and risk of comorbid diseases. The aim of this pilot study was to assess changes in knowledge and satisfaction in men with PCa following attendance at a nutrition education seminar. Fifty-two men with PCa attended nutrition education seminars instructed by a Registered Dietitian. Participants completed the Revised General Nutrition Knowledge Questionnaire (GNKQ-R) preseminar and 2 weeks postseminar, along with a satisfaction survey. Increased nutrition knowledge was observed through a significant (P = 0.023) improvement in mean scores of 71.6% (P < 0.005) preseminar compared with 79.3% (P < 0.005) postseminar on the GNKQ-R. Participants reported the seminar as a satisfactory method for meeting their diet information needs. Using thematic analysis 3 themes emerged: importance of diet information, desire for an integrative approach, and the value of group learning. This pilot study found that a group nutrition education seminar may be an effective and satisfactory approach to fulfilling the dietary information needs of this population. Group education may be an economically sustainable approach with potential application in other tumour sites or health conditions.
Percutaneous Thrombectomy for the Treatment of Acute Massive Pulmonary Embolism: Two Case Reports
Authors: Dorji Kinley Sangay , Rookkapan Sorracha , Tanomkiat Wiwatana , Hongsakul Keerati
Published: December 2020

Pulmonary embolism (PE) is the third commonest cause of death in hospitalized patients after myocardial infarction and stroke. Surgical thrombectomy is a standard option in cases of a clinical massive PE with hemodynamic instability and in patients in whom systemic thrombolysis is contra-indicated. Percutaneous thrombectomy is a new minimally invasive alternative treatment for clinical massive PE, and it has a high efficacy, with fewer complications. We report two patients with acute massive PE that were treated successfully using the endovascular technique with suction thrombectomy.
Practising Intimate Labour
Authors: Castañeda Angela N. , Searcy Julie Johnson
Published: December 2020

Birth doulas provide non-medical intimate support to pregnant people and their families. This support starts at the very foundation of life – breath. Doulas remind, encourage and accompany people through labour by breathing with them. However, the global COVID-19 pandemic has interrupted doulas’ intimate work, and they are forced to navigate new restrictions surrounding birth practices. Based on data collected from a qualitative survey of over five-hundred doulas as well as subsequent follow-up interviews with select doulas, we find intimacy at births disrupted and reshaped. We suggest that an analysis of doulas provides a unique way to think through the complexities surrounding reproduction precisely due to doulas’ ability to navigate intimate labour between and across boundaries.
The Pandemic of Productivity
Authors: Chattopadhyay Suchismita
Published: December 2020

Initially with the massive outbreak of COVID-19, physical distancing in the form of stay-at-home campaigns made the headlines. The most stringent lockdown period in India was envisaged by the privileged class as a productive time at home. I show that the home as a space of leisure and intimacy is also a site of caste and gender privilege that upholds the social division of labour. By looking at both the work of home and the work from home, I problematise the notion of productivity from home and argue for a renewed understanding of what constitutes work and what constitutes home as an intimate space.
Zooming in on COVID
Authors: Roth Adam , Ranjan Niroshnee , King Grace , Homayun Shamim , Hendershott Rebecca , Dennis Simone
Published: December 2020

This article is a result of the way in which the design of a first-year anthropology course attempted to undo stern structural hierarchies between students and teachers. Instead, the participants regarded one another as fellow anthropologists undertaking ethnographic research on the university context. This article examines the intimate relations that came available to participants when the course moved from in-person to Zoom format. Participants moved into homes to document the unfurling COVID-19 crisis, (back) into intimate familial relations. But this was not the only intimacy with which participants had to grapple anthropologically. The lecture materials, too, connected themselves to things and experiences in immediacy as they arrived into homes through laptop screens. The screens themselves offered up new insights into the lives of others – something newly minted anthropologists had to account for as they completed the course.
Pregled dosadašnjih spoznaja o utjecaju visine stelje na pojavnost kontaktnog dermatitisa u tovnih pilića
Authors: Sabolek Ivana , Ostović Mario , Pavičić Željko , Matković Kristina , Nejedli Srebrenka
Published: December 2020

Kvaliteta stelje je među glavnim čimbenicima o kojima ovise dobrobit i proizvodnost tovnih pilića. Intenzivan rast i razvoj pilića u tovu rezultiraju produljenim razdobljima odmora, što u kombinaciji s lošom kvalitetom stelje pogoduje pojavi kontaktnog dermatitisa na jastučićima nogu, tarzalnim zglobovima i prsima. Kontaktni dermatitis negativno utječe na zdravlje i dobrobit pilića, kvalitetu i zdravstvenu ispravnost mesa te ekonomiku proizvodnje. Glavni uzroci kontaktnog dermatitisa su vlaga i kemijske supstance u stelji koje djeluju nadražujuće, uz mnoštvo čimbenika koji utječu na njegovu pojavnost. S obzirom na utjecaj visine stelje na pojavnost kontaktnog dermatitisa, dosadašnji radovi izvještavaju o različitim, čak oprečnim rezultatima, koji iziskuju daljnja istraživanja. Dodatan naglasak potrebno je staviti na istraživanja utjecaja visine stelje na proizvodnost te kvalitetu i zdravstvenu ispravnost pilećeg mesa.
Poszukiwanie mądrości a nawrócenie według św. Augustyna. Aspekt epistemologiczno-etyczny
Authors: Drożdż Alojzy
Published: December 2020

Der hl. Augustinus hat sehr viel seiner Aufmerksamkeit auf das Problem der Weisheit.
Liturgia eucharystyczna na 1600 rocznicę chrztu św. Augustyna
Authors: Longosz Stanisław
Published: December 2020

BRAK
Wpływ Eucharystii na wewnętrzny wzrost człowieka w nauczaniu św. Augustyna
Authors: Gliściński Jan
Published: December 2020

Secondo Sant'Agostino la crescita dell'uomo e possibile se l'Eucaristia costituisce per lui un sacramento di pieta, segno di unita e vincolo di carita.
Kontakty św. Augustyna z papieskim Rzymem
Authors: Śrutwa Jan
Published: December 2020

Saint Augustin a demeure a Rome deux fois, a savoir au debut et a la fin de a la fin de son sejour en Italie, dans les annees 383-388.
Hippona dziś
Authors: Gołgowski Tadeusz
Published: December 2020

Hac in dissertatiuncula historia necnon monumenta archeologica antiqui Hipponis Regii tempore S. Augustini vigentia breviter exponuntur.
Un tardivo manoscritto di Cracovia contenente la "Vita Sancti Pauli Primi Eremitae" di San Girolamo
Authors: Degórski Bazyli
Published: December 2020

BRAK
Dziewictwo rozumiane jako ustawiczna walka dla Pana: fundamenty biblijne w liście 22 św. Hieronima do Eustochium
Authors: Turek Waldemar Jan
Published: December 2020

Autor opracowania wybiera z wielu zagadnień poruszanych w Liście 22 św. Hieronima temat dziewictwa rozumianego jako ustawiczna walka dla Pana i analizuje fundamenty biblijne tej idei. Próbuje najpierw ustalić cel, jaki przyświecał św. Hieronimowi, piszącemu ten list, czyli ukazanie, w świetle Biblii, z jednej strony racji i piękna życia w dziewictwie, z drugiej zaś trudów i wyrzeczeń, które trzeba nieustannie podejmować, aby wytrwać w tym stanie. Zajmuje się następnie odnośnymi tekstami biblijnymi, pochodzącymi głównie z Nowego Testamentu, zwłaszcza z Ewangelii i z listów św. Pawła apostoła; analizuje ich użycie, wybrane zwroty i wyrażenia (pochodzące niekiedy ze świata sportowców i żołnierzy) oraz ich kontekst literacki i doktrynalny. Podaje następnie konkretne elementy duchowej walki podejmowanej przez dziewicę dla Chrystusa (modlitwa, rozważanie Pisma świętego, milczenie, post, pozostawanie w domu, różne umartwienia dotyczące ciała i ducha), który osobiście dał nam dowody najwyższej miłości, ubóstwa i wytrwałości w znoszeniu cierpień. Pyta na zakończenie, w kontekście ciągle aktualnej debaty dotyczącej dziewictwa i małżeństwa, o znaczenie omawianego Listu 22 św. Hieronima dla tego tematu w perspektywie biblijnej, chrystologicznej, eklezjologicznej i eschatologicznej.
Gdzie leżał starożytny Strydon? Przegląd najważniejszych hipotez jego lokalizacji
Authors: Misiarczyk Leszek
Published: December 2020

Pierwsze próby lokalizacji Strydonu Hieronima w XVII wieku oparte były na podobieństwach w brzmieniu nazw niektórych dzisiejszych miejscowości z antycznym Strydonem oraz uwarunkowane bardziej lokalnym patriotyzmem niż rygorem naukowym. W ten sposób utożsamiano Strydon ze Zdrinja/Sdringa w Istrii, z Zrin w Medumurje w Panonii albo ze Strigovo w Dalmacji. Frane Bulić opierając się na opisie Hieronima z De viris illustribus zaproponował Grahovo, ale ta hipoteza została przez większość badaczy odrzucona. Najbardziej przekonująca okazała się hipoteza Mate Suića według której Strydon leżał w Dalmacji, a konkretnie w Liburni, zaś w sensie administracji państwowej i kościelnej przynależał do miasta Tarsatica, dzisiejsza Rjeka w Chorwacji. Najnowsza hipoteza Lujo Magnetića, który proponuje postrzegać pogranicze, o którym wspomina Hieronim jako pogranicze między Dalmacją a Panonia Secunda, czyli na terenie dzisiejszej Bośni-Hercegowiny, na linii powyżej Bania-Luka – Doboj nie przekonuje.
A rhetorical reading of Tendayi Westerhof's Unlucky in Love
Authors: Sylvia Pasi Juliet , Makamani Rewai
Published: December 2020

What could be discursively more engaging in rhetorical investigation than people writing about what they know best, their life histories? Apparently, rhetorical analysis involving the retrospective narrative in prose is herein perceived as one of the most contested issues in written discourses as it revolves around an often highly emotive terrain - "rhetorical situation" (Bitzer, 1968 in Hauser & Kjeldsen n.d., p.100) wherein the rhetorical agency's (author) utterance (literary genesis) is nothing more than a manifestation of a unique sitz-in-leben (situation in life) - the human condition involving the author. Using Tendayi Westerhof's semi-autobiographical novel, Unlucky in Love, this paper argues that HIV and AIDS is more than just a disease. It is further noted that so much logos is wasted defending and protecting conventional knowledge and moribund cultural practices. Westerhof's text collapses these cultural boundaries when she writes and universalises the story of her life – a life projected through an intriguing deployment of ethos, pathos and logos as propounded by Aristotle, and intricately balanced with a quest to identify with the target audience as instructed by Burke (1997). Disguised as Rumbidzai, Tendayi Westerhof relives her life-history relying mostly on forensic introspection of personal memory to address readers and persuade them to identify (Burke, 1997) with a version of her life experience. However, this paper argues that memory is a subjective form of evidence which cannot be externally verified but rather asserted on the subject's authority (character/ethos). Thus, broadly speaking, the article seeks to analyse the rhetorical strategies that Westerhof uses in her text to make people believe in her experiences amidst an insecure and sterile “rhetorical situation" as a woman in a patriarchal Zimbabwean society; a "rhetorical situation"; that is further aggravated by the harsh economic climate as well as the HIV and AIDS pandemic. The paper posits that by largely using autobiography as an overarching rhetorical strategy, Westerhof is able to unravel and interrogate those issues that society is usually silent on, that is the "unspeakables". The paper also posits that these issues have been both unrepresented and unrepresentable within sanctioned cultural spheres; hence it will interrogate how the rhetoric of naming such shifts identities in Zimbabwean societies.
السرد بين الشاعر فليح الركابي والشاعر ئاوات حسن أمين
Authors: Salman Haidar Hadi
Published: December 2020

لقد حظيتْ دراسة السرد في الشعر العربي بنصيب وافر من الجهد النقدي الحديث، وإنْ اندرجت تحت مسميات متنوعة كالقصة، والحكاية، والبناء القصصي، والأداء القصصي، والبناء الدرامي في الشعر، وكأنَّ كل هذه العنوانات تعني شيئًا واحدًا، على الرغم مما بينها من اختلاف وتباين .

وما يهمنا هنا هو وسائل البناء السردي التي يستعين بها المبدع في إنشاشه النص السردي وإظهاره للوجود عبر ثنائية الوصف والسرد، فضلاً عن الحوار، إذ نجد السرد والوصف يعملان معا، ولكن بشكل متعارض، فلكل واحد منهما وظيفته، فالسرد يركز على إظهار الأحداث في العمل السردي، والوصف يسعى إلى الكشف عن الأشياء ومكوناتها، والأشخاص وطباعها الخلقية .

فجاءت هذه الدراسة للبحث في ( السرد بين الشاعر فليح الركابي و الشاعر ئاوات حسن أمين -دراسة موازنة-)، وتوزعت الدراسة بين تمهيد، ومبحثين، درست في الأول الوصف، وجاء المبحث الثاني لدراسة الحوار وبعد استكمال مباحث الدراسة، أوجزت الخاتمة بأهم النتائج التي توصلت إليها . 

  وقد اخترت شخصيتين بارزتين في مجال الشعر العراقي المعاصر، وفي مجال العمل الإداري الذي يتيح لهما التقرب من المجتمع بكل فئاته، فضلا عن حبهما للوطن، ورصدهما للقضايا السياسية والاجتماعية التي مر بها البلد، فهما يحملان العشق نفسه، والانجذاب نفسه، والحنين نفسه إذا ما ابتعدا عنه .
Production Planning and Scheduling Using Machine Learning and Data Science Processes
Authors: De Modesti Paulo Henrique , Carvalhar Fernandes Ederson , Borsato Milton
Published: December 2020

Increasing manufacturing efficiency has been a constant challenge since the First Industrial Revolution. What started as mechanization and turned into electricity-driven operations has experienced the power of digitalization. Currently, the manufacturing industry is experiencing an exponential increase in data availability, but it is essential to deal with the complexity and dynamics involved to improve manufacturing indicators. The aim of this study is to identify and allow an understanding of the unfilled gaps and the opportunities regarding production scheduling using machine learning and data science processes. In order to accomplish these goals, the current study was based on the Knowledge Development Process – Constructivist (ProKnow-C) methodology. Firstly, selecting 30 articles from 3608 published articles across five databases between 2015 and 2019 created a bibliographic portfolio. Secondly, a bibliometric analysis, which generated comparative charts of the journals’ relevance regarding its impact factor, scientific recognition of the articles, publishing year, highlighted authors and keywords was carried out. Thirdly, the selected articles were read thoroughly through a systemic analysis in order to identify research problems, proposed solutions, and unfilled gaps. Then, research opportunities identified were: (i) Big data and associated analytics; (ii) Collaboration between different disciplines; (iii) Solution Customization; and (iv) Digital twin development.
Virtual Factories with Knowledge-Driven Optimization as a New Research Profile
Authors: Ng Amos H.C. , Bandaru Sunith
Published: December 2020

This paper conceptually introduces VF-KDO (Virtual Factories with Knowledge-Driven Optimization, a research profile of the University of Skövde, Sweden, which is underway from 2018-2026. The goal of this research profile is to deliver radical innovations in manufacturing research essential to the design and operation of next-generation manufacturing systems. A unique concept proposed in VF-KDO is: knowledge extracted for decision support is achieved through systematically exploring, e.g., using advanced, interactive data analytics techniques on optimal solutions generated via many-objective optimizations on virtual factory models. As the word “driven” means “motivated” or “manipulated”, so does KDO have some two-fold meanings: (1) optimizations that aim at generating knowledge, not only mathematically optimal solutions; (2) knowledge-controlled optimizations, instead of some blind/black-box processes. It is this concept of KDO, combining with modular, virtual factory models at different levels, which distinguishes VF-KDO from other related research efforts found internationally and in Sweden. The cutting-edge research topics involved in the research profile and their synergy with the digitalization efforts of the 7 partner companies, in form of the development of an intelligent decision support system, can be used to improve the competiveness of the Swedish manufacturing industry by supporting their holistic, optimal and sustainable decision making.
Production Innovation and Effective Dissemination of Information for Operator 4.0
Authors: Li Dan , Fast-Berglund Åsa , Paulin Dan
Published: December 2020

The manufacturing industry is becoming increasingly more complex as the paradigm of mass-production moves, via mass-customization, towards personalized production and Industry 4.0. This increased complexity in the production system also makes everyday work for shop-floor operators more complex. To take advantage of this complexity, shop-floor operators need to be properly supported in order to perform their important work. The shop-floor operators in this future complex manufacturing industry, the Operator 4.0, need to be supported with the implementation of new cognitive automation solutions. These automation solutions, together with the innovativeness of new processes and organizations will increase the competitiveness of the manufacturing industry. This paper discusses three different aspects of production innovation in the context of the needs and preferences of information for Operator 4.0. Conclusively, product innovations can be applied in the manufacturing processes, and thus becoming process innovations, but the implementation of such innovations require organizational innovations.
Exploring Second Life Applications for Electric Vehicle Batteries
Authors: Vu Felix , Rahic Melanie , Chirumalla Koteshwar
Published: December 2020

The purpose of the study is to explore an economically viable second life applications for electric vehicles (EV) batteries. There is a common consensus in the automotive industry that the reuse of retired EV batteries—often referred as a second life of a battery—can provide greater economic and sustainability benefits. Although literature acknowledged potential business opportunities with batteries’ second life, there are still a lot of uncertainties, making success difficult to realize. In particular, identification of a profitable second life application with a right business model in the battery value chain has become a key success factor. Therefore, a case study, with a mixed research approach, considering both qualitative and quantitative methods, has been conducted in a company that is one of the leading manufacturers in the heavy-duty industrial vehicle industry, which currently is developing their electric vehicle machines with a li-ion battery pack. The study generated and analyzed several different second life concepts to find the most economically viable second life applications. The analysis concluded three second life business concepts in the initial phase. In the later phases, individual business model canvases and different reverse logistics processes were created, mapped, compared, and validated through quantitative analysis. The analysis show that out of three concepts remanufacturing application proved to be the most applicable one for the case company, within a range of 15 years’ time. The paper contributes to the theory of circular business models in the context of EV batteries.
Product Platforms in Industrialized House Building – Information Modeling Method
Authors: Popovic Djordje , Raudberget Dag , Elgh Fredrik
Published: December 2020

There is a demand on the current markets of industrialized house building for higher product design flexibility and customization. One of the success factors in addressing this challenge efficiently is the formalization and use of product platforms through information technology applications. However, there is a lack of knowledge on how product platforms and their use should be modeled to support the development of information technology applications. The aim of this paper is therefore, to increase the knowledge on information modeling of product platforms and their use in the industrialized house building design process. The available information modeling methods were identified and analyzed using literature review while considering the contextual criteria of industrialized house building. An information modelling method for product platforms and their use in the industrialized house building design process is proposed. The information modeling rationale is synthesized using the design platform modeling and the information delivery manual modeling. The former is a PLM-oriented while the latter is a BIM-oriented information modeling method. The proposed information modeling method is composed of three parts: product platform information model, process maps and exchange requirement specification. Future work should aim for the validation of the proposed information modeling method by application on empirical data in a case study.
Indoor Localization of Quadcopters in Industrial Environment
Authors: Troll Péter , Szipka Károly , Archenti Andreas
Published: December 2020

The research work in this paper was carried out to reach advanced positioning capabilities of unmanned aerial vehicles (UAVs) for indoor applications. The paper includes the design of a quadcopter and the implementation of a control system with the capability to position the quadcopter indoor using onboard visual pose estimation system, without the help of GPS. The project also covered the design and implementation of quadcopter hardware and the control software. The developed hardware enables the quadcopter to raise at least 0.5kg additional payload. The system was developed on a Raspberry single-board computer in combination with a PixHawk flight controller. OpenCV library was used to implement the necessary computer vision. The Open-source software-based solution was developed in the Robotic Operating System (ROS) environment, which performs sensor reading and communication with the flight controller while recording data about its operation and transmits those to the user interface. For the vision-based position estimation, pre-positioned printed markers were used. The markers were generated by ArUco coding, which exactly defines the current position and orientation of the quadcopter, with the help of computer vision. The resulting data was processed in the ROS environment. LiDAR with Hector SLAM algorithm was used to map the objects around the quadcopter. The project also deals with the necessary camera calibration. The fusion of signals from the camera and from the IMU (Inertial Measurement Unit) was achieved by using Extended Kalman Filter (EKF). The evaluation of the completed positioning system was performed with an OptiTrack optical-based external multi-camera measurement system. The introduced evaluation method has enough precision to be used to investigate the enhancement of positioning performance of quadcopters, as well as fine-tuning the parameters of the used controller and filtering approach. The payload capacity allows autonomous material handling indoors. Based on the experiments, the system has an accurate positioning system to be suitable for industrial application.
Reconfigurable Manufacturing: How Shop Floor Digitalisation Supports Operators in Enhancing Diagnosability
Authors: Napoleone Alessia , Andersen Ann-Louise
Published: December 2020

Manufacturing companies are currently struggling with the need to deal with ever changing marker requirements and technological advances. They can develop the reconfigurability capability in their factories in order to deal with such context. Moreover, companies can implement shop floor digitalisation to enhance their reconfigurability. This paper sustains two arguments: (i) the possibility to enhance diagnosability as a critical reconfigurability characteristic through shop floor digitalisation; and (ii) the relevance of the human role in reaching diagnosability in a digitalised shop floor. The paper first presents a literature review and based on this, aspects of shop floor digitalisation supporting operators in enhancing the diagnosability are identified and synthesized in a 3-e model (error reduction, ergonomics, and easiness). Secondly, insights from a case study are interpreted through the literature-based model in order to both consolidate the theoretical results and emphasize the implications for practitioners. The findings of this paper indicate that the proposed model can support practitioners in taking specific actions in regard to shop floor digitalisation in order to improve operator-dependent diagnosability and, in turn, the reconfigurability capability.
MicroRNAs MiR-15a and MiR-26a cooperatively regulate O-GlcNAc-transferase to control proliferation in clear cell renal cell carcinoma
Authors: Kalantzakos Thomas J. , Sullivan Travis B. , Sebel Luke E. , Canes David , Burks Eric J. , Moinzadeh Alireza , Rieger-Christ Kimberly M.
Published: December 2020

BACKGROUND: MicroRNAs (miRNAs), a group of non-coding post-transcriptional regulators of gene expression, are dysregulated in clear cell renal cell carcinoma (ccRCC) and play an important role in carcinogenesis. Our prior work identified a subset of miRNAs in pT1 ccRCC tumors associated with progression to metastatic disease. OBJECTIVE: To investigate the impact of two of these dysregulated miRNA, miR-15a-5p and -26a-5p, in an effort to elucidate the mechanisms underpinning aggressive forms of stage I ccRCC. METHODS: The ccRCC cell line 786-O was transfected with pre-miRs-15a-5p and -26a-5p to rescue expression. Cell proliferation was measured via MT Cell Viability Assay. O-GlcNAc-transferase (OGT), a known protein in ccRCC proliferation, was identified by bioinformatics analysis as a target of both miRNA and validated via luciferase reporter assay to confirm binding of each miR to the 3′ untranslated region (UTR). OGT protein expression was evaluated via western blotting. RESULTS: Luciferase assay confirmed specificity of miR-15a-5p and -26a-5p for the OGT UTR. Western blot analysis for OGT showed reduced expression following co-transfection of both miRNAs compared to negative control or individual transfection. Co-transfection of these miRNAs greatly reduced proliferation when compared to negative control or the individual transfections. CONCLUSION: Our results indicate that the dysregulation of miR-15a-5p and -26a-5p contribute cooperatively to the proliferation of ccRCC through their regulation of OGT. These results give insight into the pathogenesis of aggressive early stage ccRCC and suggest potential therapeutic targets for future research.
Study of the co-expression gene modules of non-small cell lung cancer metastases
Authors: Wang Guanghui , Bie Fenglong , Li Guangxu , Shi Junping , Zeng Yanwu , Du Jiajun
Published: December 2020

BACKGROUND: Metastasis regularly is a marker of the disease development of cancers. Some metastatic sites significantly showed more serious clinical outcomes in non-small cell lung cancer (NSCLC). Whether they are caused by tissue-specific (TS) or non-tissue-specific (NTS) mechanisms is still unclear. OBJECTIVE: Explore co-expression gene modules of non-small cell lung cancer metastases. METHODS: Weighted Correlation Network Analysis (WGCNA) was used to identify the gene modules among the metastases of NSCLC. The clinical significance of those gene modules was evaluated with the Cox hazard proportional model with another independent dataset. Functions of each gene module were analyzed with gene ontology. Typical genes were further studied. RESULTS: There were two TS gene modules and two NTS gene modules identified. One TS gene module (green module) and one NTS gene module (purple module) significantly correlated with survival. This NTS gene module (purple module) was significantly enriched in the epithelial-to-mesenchymal transition (EMT) process. Higher expression of the typical genes (CA14, SOX10, TWIST1, and ALX1) from EMT process was significantly associated with a worse survival. CONCLUSION: The lethality of NSCLC metastases was caused by TS gene modules and NTS gene modules, among which the EMT-related gene module was critical for a worse clinical outcome.
Diagnostic value of real-time shear wave elastography in children with chronic kidney disease
Authors: Liu Qin , Wang Zhengrong
Published: December 2020

OBJECTIVE: To evaluate the diagnostic value of real-time shear wave elastography (SWE) in children with chronic kidney disease (CKD). METHODS: Children with CKD diagnosed by the ultrasound-guided biopsy between January 2018 and May 2019 were enrolled as the case group. Age- and sex- matched healthy children were selected as the control group. The Young’s Modulus (YM) of the renal cortex was measured by SWE after the traditional ultrasound examination. Variance analysis was performed to compare the values of YM between the two groups. Receiver operating characteristic curve (ROC) analysis was used to compare the values of YM, and explore the cut-offs of the YM. RESULTS: In the case group (n = 60, 45% male, mean age of 9.2 years), the kidney YM modulus on the left side (16.8±4.8 kPa vs. 8.3±2.1 kPa) and the right side (16.0±4.7 kPa vs. 8.3±2.4 kPa) were both higher than the control group (all P values < 0.001). With the progress of CKD, the YM value of the left and right kidneys gradually increased. ROC analysis showed that when the left and right kidney YM value was 11.7 kPa and 11.0 kPa, the diagnostic sensitivity and specificity were the highest (left: respectively 93.3% and 95.0%; right: respectively 93.3 % and 91.7%). CONCLUSION: The increase of YM in CKD is related to the progression of renal dysfunction which may provide a new method for early diagnosis of CKD, dynamic monitoring of disease progression, and evaluation of curative effect and prognosis.
A new approach based on graph matching and evolutionary approach for sport scheduling problem
Authors: Khelifa Meriem , Boughaci Dalila , Aïmeur Esma
Published: December 2020

The Traveling Tournament Problem (TTP) is concerned with finding a double round-robin tournament schedule that minimizes the total distances traveled by the teams. It has attracted significant interest recently since a favorable TTP schedule can result in significant savings for the league. This paper proposes an original evolutionary algorithm for TTP. We first propose a quick and effective constructive algorithm to construct a Double Round Robin Tournament (DRRT) schedule with low travel cost. We then describe an enhanced genetic algorithm with a new crossover operator to improve the travel cost of the generated schedules. A new heuristic for ordering efficiently the scheduled rounds is also proposed. The latter leads to significant enhancement in the quality of the schedules. The overall method is evaluated on publicly available standard benchmarks and compared with other techniques for TTP and UTTP (Unconstrained Traveling Tournament Problem). The computational experiment shows that the proposed approach could build very good solutions comparable to other state-of-the-art approaches or better than the current best solutions on UTTP. Further, our method provides new valuable solutions to some unsolved UTTP instances and outperforms prior methods for all US National League (NL) instances.
Machine learning aided switching scheme for hybrid FSO/RF transmission
Authors: Kiran Kappala Vinod , Perinbaraj Subhanesh , Pradhan Jayashree , Mallick Pradeep Kumar , Turuk Ashok Kumar , Das Santos Kumar
Published: December 2020

Free Space Optics (FSO) is one of the technologies which supports immense data transfer requirements. Though it offers high data rate, but experiences atmospheric attenuation due to dynamic weather conditions. On the other hand, RF communication has lower data rates but are comparatively insensitive to weather conditions. This paper focuses on a hybrid FSO/RF system with the application of Machine Learning (ML) on the prediction of Link Margin (LM) and a ML based switching mechanism between FSO/RF based on the current weather conditions. LM is considered as an important quality parameters in the design and analysis of the FSO link. Mainly rain and fog meteorological data are considered for the estimation and classification of link.
Clustering of bank customers based on lifetime value using data mining methods
Authors: Hasheminejad Seyed Mohammad Hossein , Khorrami Mojgan
Published: December 2020

In the current competition environment, organizations have realized that to gain profit, in addition to attract customers, they should have a good relationship with them Understanding the needs of customers and providing services for them are important factors in the success or failure of any organization. Therefore, we need to a standard measure to assess the value of customers and, as a result, establish a profitable and long-term relationship with them. Customer lifetime value is a standard measure used to predict the value and segmentation of customers in future. In this paper, we collected all English articles in this field from 2001 to 2019, that most of them had only examined the Recency, Frequency, and monetary features. But in this research, we have explored new features of customers and their accounts that have identified profitable customers and, consequently, clustered them with more accurate customer information. Two clustering methods (K-mean and CPSOII) have been used to examine customers. The advantage of CPSOII compared with the K-means is that CPSOII is able to determine the number of clusters automatically. By using algorithms assessment criteria such as SSE, VRC and DBI, we have reached to this result that CPSOII with DBI = 0.44 is the most suitable clustering algorithm. By using the result of CPSOII, we calculated the customers’ longevity, and we found that customers with the highest values of RFM indexes, have the longest lifetime and the bank should plan for their maintenance.