bluuebunny/crossref_metadata_2025 huggingface dataset:
CD20 Negative Primary Cutaneous Diffuse Large B-Cell Lymphoma, Leg Type with Rapidly Progressing Skin Lesions
Authors: M. M. Abdelmaged Dalya , A. Avila Carol , A MohamedSharif Abubaker , Bdraldein Salih Mohammed Isra
Published: September 2023

A 95-year-old man came with violaceous nodular skin lesions of the left shin. The lesions were not painful or pruritic but progressed rapidly over the 3 months. Fever, night sweats, weight loss, and other systemic symptoms were absent. Shave biopsy of the lesion revealed the cells negative for CD20 but positive for BCL2, BCL6, FOX-P1, and CD10. PET/CT showed high uptake in the left leg and a sizeable hypermetabolic lymph node in the left pelvis. The patient was started on rituximab treatment as a single agent. This report highlights some of the diagnostic and treatment difficulties in CD20 negative lymphomas and the importance of a multidisciplinary approach in those cases.
Consolidating Medical Education in Sudan During War
Authors: H. Taha Mohamed , E. Husain Nazik , Nuri Osman Mukhtar Wail , Elhassan Abdalla Mohamed
Published: September 2023

Background: Providing quality medical education in Sudan faces challenges due to armed conflicts. This short communication explores practical solutions for ensuring the continuity of medical education during the conflict in the Sudanese context. Methods: A comprehensive literature review covered relevant articles published from 1915 to 2023. Four major databases (PubMed, Scopus, Web of Science, and Google Scholar) were searched using keywords related to medical education, war, armed conflict, and affected countries. Data synthesis identified common themes, challenges, and trends and suggested solutions for medical education in conflict zones. Case studies from Ukraine, Liberia, and Iraq were included for a comprehensive understanding. Results: Collaborative alliances among medical schools facilitate resource sharing and support. Engaging the Sudanese diaspora through virtual collaborations, mentorship programs, and faculty exchanges enhance educational experiences. Stable regions as educational hubs ensure uninterrupted academic progress for students from conflict-affected areas. Online and remote education, including asynchronous learning and social media platforms, overcome access barriers and fosters knowledge sharing. Ambulatory teaching provides practical experience and adaptability. Prioritizing faculty well-being and professional development through training and support is crucial. Emphasizing resilience and adaptability in student education prepare them for healthcare delivery in resource-limited settings. Research and innovation contribute to evidence-based strategies. International collaboration and support offer opportunities for knowledge exchange and infrastructure improvement. Conclusion: Implementing collaborative strategies and innovative approaches helps Sudanese medical schools overcome challenges during armed conflicts and maintain quality medical education. These solutions empower students and faculty, enhance resilience, and contribute to improving healthcare systems in post-war Sudan.
Removal of Methylene Blue Dye from Aqueous Solution Using Trichlorovinylsilane Chitosan–g–polyacrylamide Hydrogel
Authors: AWODE Anthony U , ELAİGWU Sunday , OLADİPO Akeem A , YILMAZ Osman , GAZİ Mustafa
Published: September 2023

A new hydrogel based on vinylsilane-chitosan and acrylamide was synthesized as VSi-CTS-g-PAAm and was used to remove methylene blue (MB) from aqueous solution using batch adsorption technique. The VSi-CTS-PAAm hydrogel interacted with methylene blue (MB) dye solution at different mass-liquid ratios, pH, and temperature. The amount of MB dye removal was estimated using a UV-Vis spectrophotometer at an optical density of λmax= 665 nm. The MB dye removal was most effective at pH 12, with about 98 % removal at 50 °C. The study's findings also indicated that the equilibrium data exhibited the highest degree of conformity with the Langmuir isotherm model. Additionally, the adsorption process adhered to the pseudo-second-order kinetics and was characterized as endothermic. Therefore, our study suggests that the utilization of prepared materials may have potential advantages in treating wastewater containing dyes.
ГЕНЕЗІС КОМПЛЕМЕНТАРНОГО РОЗВИТКУ ТУРИСТИЧНОЇ ІНДУСТРІЇ
Authors: Воловельська І. В. , Волокітін В. О.
Published: September 2023

В статті під час аналізу та досліджень доведено, що туризм у різних формах існував достатньо довго та продовжує розвиватися і зараз. Світова туристична індустрія сьогодні розвивається дуже бистрими темпами, ій практично не заважають ні природні катаклізми, ні епідемії, ні війни. Вони лише призупиняють сталий розвиток, але ця галузь продовжує активно рухатися вперед. При становленні туризму важливу роль грало зміна його цілей. Якщо в середні століття це було в основному релігійні та політичні (воєнні) цілі, а також розвиток торгівлі між державами, то зараз туризм набув соціального значення. У зв’язку з відсутністю транспортної інфраструктури та довгим періодом пересувань, подорожі були рідкими та могли дозволити їх не всі, а тількі заможні члени соціума. Винахід інноваційних транспортних средств у 19 сторіччі зробило переміщення людей швидшим та комфортнішим. З'явилася мережа доріг, стали популярними морські круїзи та подорожі потягами. Починають будуватися розкішні готелі. І індустрія туризму отримує новий виток розвитку. Туризм став диференційований щодо попиту, послуг і товарів, що постачаються. Більше того, ринок виробника поступово став рінком, орієнтованим на споживача. Зараз в Україні достатньо складне становище і це стосується не тількі індустрії туризму. Пандемія короновірусу та війскова агресія Россії лише посилила існуючі проблеми. До того ж, обмеження на перельоти за деякими напрямками негативно позначилося на світовій індустрії туризму, оскільки знизило довіру до безпеки подорожей. Проаналізувавши етапи генезису турістичної індустрії, зроблено висновок про те, що тількі комплементарний розвиток цієї галузі зможе зробити її більш успішною у своєму розвитку та допоможе нейтралізувати ризики, які їй загрожують.
Kratka ekonomsko-finančna situacija v Sloveniji
Authors: Margan Florian
Published: September 2023

V letu 2014 pričakujemo, da bo recesije v Španiji konec. Gospodarsko rast bodo po napovedih MDS in SB dosegle vse evropske države razen Slovenije in Cipra. Baltske države bodo rastle hitro in okrevale bodo tudi države PIIGS. Predvidevajo, da se bo index borze DAX približal 9.000 točkam, kar pomeni, da pričakujemo večjo godpodarska rast Nemčije. Leto 2014/15 bo ekonomskogospodarsko uspešno, razen za Slovenijo in Ciper.
Numerična simulacija uparjanja kapljevitega filma
Authors: Zadravec Matej , Jeke Uroš , Hriberšek Matjaž
Published: September 2023

V večini tehniških in naravnih sistemov je prisoten vlažen zrak. Vlažen zrak lahko pri določenem tlaku in temperaturi sprejme določeno količino vlage, pri čemer pride do točke nasičenja. Kondenzacija na stenah trdnih površin velikokrat ovira normalno delovanje v tehničnih napravah in je nezaželena. Nasproten pojav kondenzacije je uparjanje. Predstavljen je splošen matematičnofizikalni model uparjanja kapljevitega filma in njegova implementacija v obstoječi programski paket za računalniško dinamiko tekočin. Implementacija numeričnega modela uparjanja je bila preverjena na primeru simulacije pravokotnega 3D kanala in primerjana z izvedenim eksperimentom uparjanja kapljevitega filma. Zrak, ki teče nad vodno površino uparja vodo, pri čemer se vodna površina ohlaja, dokler se ne vzpostavi ravnotežje med prevodom toplote iz zraka in latentne toplote, ki se porabi za uparjanje. Spremljali smo kombiniran prenos toplote in snovi. Ugotovljeno je bilo, da je vpliv naravne konvekcije v primerjavi s konvektivnim tokom zanemarljiv in da je bila implementacija modela uparjanja uspešna.
Človeški kapital kot trajnostno vodilo v gospodarski razvoj Pomurja
Authors: Kumer Andreja , Kotnik Nina , Škrinjar Dominik
Published: September 2023

Slovenske statistične regije se močno razlikujejo po kakovosti človeškega kapitala, kar vpliva na njihovo gospodarsko uspešnost. V članku se osredotočamo na regijo Pomurje, kjer demografske spremembe, nizka delovna aktivnost prebivalstva, strukturne neusklajenosti v izobraževanju ter neustrezno upravljanje človeških virov močno omejujejo gospodarski razvoj. V hitro spreminjajočem okolju se moramo usmeriti v dosego trajnostnega razvoja, kar vključuje tudi doseganje trajnostnega človeškega kapitala in kompetenc. V raziskavi smo proučili pomen in smotrnost vlaganja v človeški kapital, podali vpogled v stanje proučevane regije in oblikovali predloge za dosego trajnostnega človeškega kapitala v Pomurju. Z ugotovitvami ponujamo potencialne strategije za krepitev človeškega kapitala in spodbujanje inovativnega delovnega okolja ter s tem izboljšanja stanja gospodarstva. V zaključku poudarjamo, da je vlaganje v človeški kapital dolgoročna družbena naložba, ki lahko regiji daje konkurenčno prednost ter vodi v njen gospodarski razvoj.
Kakovost v visokem šolstvu in prihodnost
Authors: Škafar Branko
Published: September 2023

Zagotavljanje kakovosti predstavlja temeljni element uspešnega delovanja visokega šolstva. V nalogi je, s pomočjo strokovne literature, predstavljeno stanje zagotavljanja kakovosti v visokem šolstvu v Sloveniji. Prav tako je na osnovi strokovne literature podana usmeritev zagotavljanja kakovosti visokega šolstva, v Sloveniji in širše, v prihodnosti.
Kapljice vode na spolzkih tekočekristalnih površinah
Authors: Tkalec Uroš
Published: September 2023

V prispevku so predstavljeni rezultati raziskav o kemijski aktivnosti mikrolitrskih kapljic vode na spolzkih poroznih površinah, ki temeljijo na anizotropnih lastnostih tekočih kristalov. Spolzke, s tekočinami impregnirane mikroporozne površine, ki odbijajo tako vodo kot olje, so zadnje desetletje v ospredju interdisciplinarnih raziskav [1-3]. Zaradi izjemnih fizikalnih lastnosti, kot so odpornost na zmrzal, samo-celjenje, optična prosojnost in funkcionalnost pri visokih tlakih, take površine obetajo številne možnosti uporabe, med drugim v medicini, pri dezinfekciji in čiščenju embalaže, prevlekah površin in pri preciznem zaznavanju kemikalij. Lani so bili izdelani prvi primerki takih površin na osnovi tekočih kristalov [4, 5], ki omogočajo selektivno spreminjanje kemijske sestave kapljic vode glede na temperaturno nastavljivo mezofazo. Izkaže se, da na drsenje kapljic prvenstveno vpliva pozicijski red tekočekristalnih molekul ob stični plasti, medtem ko je prenos kemikalij med nemešljivima tekočinama odvisen od orientacijske urejenosti mezofaze. Polzeče kapljice vode na takih površinah lahko izjemno učinkovito odstranjujejo ione težkih kovin, kar nakazuje možnosti uporabe pri varovanju okolja, v biomedicinski diagnostiki in kemijski sintezi.
Mišiče ledveno medeničnega predela in bolečina v križu
Authors: Čebašek Vita
Published: September 2023

Bolečina v križu je ena najpogostejših težav, ki pestijo sodobnega človeka. Nastane lahko zaradi (pre) naprezanja mišic ali preobremenjenosti hrbteničnih sklepnih struktur, zaradi utesnitve živcev, ali pa poškodb, vnetja in degenerativnih sprememb vretenc. Njena pojavnost v populaciji gospodarsko razvitega sveta narašča. Usklajeno delovanje hrbtnih, trebušnih, medeničnih in stegenskih mišic vzdržuje mehanično stabilnost hrbtenice in medenice. Porušena živčno-mišična koordinacija lahko spremeni biomehaniko hrbtenice do te mere, da privede do preobremenitev ali poškodb hrbteničnih struktur, ki lahko sprožijo občutek bolečine v križu. V prispevku podajam kratek pregled anatomije mišic, ki določajo biomehaniko hrbtenice in medenice - v žargonu športnih trenerjev pogosto imenovanih »stabilizatorji trupa«. Ob razlagi pojma plastičnosti mišic spregovorim še o škodljivosti preoblikovanja mišic, ki lahko nastane zaradi neaktivnega in pretežno sedečega načina življenja ter o koristnosti krepitve mišic, ki jo lahko dosežemo s telesno aktivnostjo.
Evalvacija avtomatskih prevodov v projektu SUMAT
Authors: Sepesy Maučec Mirjam
Published: September 2023

V članku bomo predstavili zaključno fazo projekta SUMAT, ki smo ga pregledno predstavili na konferenci PAZU leta 2011. V projektu smo razvili avtomatske prevajalnike podnapisov za 14 jezikovnih parov. Prevajanje podnapisov je kompleksna naloga, ki se v veliki meri razlikuje od drugih oblik prevajanja. Avtomatski prevajalniki, ki smo jih razvili v projektu, so danes v obliki spletne storitve na voljo profesionalnim prevajalcem kot pripomoček pri njihovem delu. V prispevku se bomo posvetili obsežni evalvaciji kvalitete prevodov, ki smo jo opravili ob sodelovanju profesionalnih prevajalcev. Izpostavili bomo najpogosteje odkrite napake v prevodih in primerjali kvaliteto prevodov za različne jezikovne pare.
Lepljenje lesa in Kerrocka
Authors: Šernek Milan , Vovk Matej
Published: September 2023

Kerrock ali »umetni kamen« je tržno ime za trd kompozitni material, ki je sestavljen iz 40 ut. % polimetil metakrilata (PMMA) in 60 ut. % aluminijevega hidroksida (ATH). Kerrock se največ uporablja za opremo notranjih prostorov in v gradbeništvu. Njegovo uporabo je možno razširiti z lepljenjem z drugimi materiali, kot je na primer les. Ker pa sta Kerrock in les v nekaterih pogledih precej različna materiala, je bil glavni cilj raziskave proučiti njuno kompatibilnost z nekaterimi lepili in ugotoviti kakovost lepljenja. Ugotovili smo, da je z lepili, ki se najpogosteje uporabljajo v lesni industriji, mogoče lepiti Kerrock z lesom. Izkazalo se je, da dobro omočenje ne pomeni nujno tudi dobre adhezije med Kerrockom in lesom. Za učinkovito lepljenje so pomembne tudi mehanske lastnosti utrjenega lepilnega spoja (kohezija) in hrapavost površine Kerrocka.
Prekmurje na poštnih znamkah
Authors: Nemec Jože
Published: September 2023

Prve znamke povezane s Prekmurjem srečamo takoj po prvi svetovni vojni, ko so za začasno uporabo s preprostimi pečati pretiskali madžarske znamke. V času Jugoslavije ni izšla nobena znamka povezana s Prekmurjem. Tako lahko za prve znamke, ki prikazujejo Prekmurje štejemo tiste, ki so bile izdane po osamosvojitvi Slovenije in so v članku prikazane. Predstavljene so pa tudi znamke drugih držav, ki jih lahko povežemo s Prekmurjem.
Spremembe v predpisovanju psihotropnih zdravil
Authors: Novak Šarotar Brigita
Published: September 2023

Predpisovanje zdravil v medicini sledi natančno določenim pravilom in predpisom, vsakemu zdravilu so določene indikacije in odmerki ter posebni pogoji predpisovanja. Tudi zdravila, ki se uporabljajo za zdravljenje duševnih motenj niso nobena izjema. Vsako uporabo zdravila izven registrirane indikacije označujemo kot neregistrirano ali »off-label« uporabo. V klinični praksi se zdravila dejansko predpisujejo tudi za neregistrirane indikacije, kot je npr. predpisovanje antipsihotikov ob anksiozno depresivnih motnjah, prisotna je uporaba zdravil v odmerkih višjih od registriranih, ali pa gre za simptomatsko uporabo zdravil, npr. za obvladovanje agitacije, zmanjševanje impulzivnosti, obvladovanje spanja. Prisotno je tudi predpisovanje različnih kombinacij nekaterih zdravil. V prispevku je poudarek na neregistrirani uporabi psihotropnih zdravil, predvsem antipsihotikov, saj je predpisovanje le teh v zadnjem obdobju postalo pomemben del klinične prakse. Predstavljeni so dejavniki, ki vplivajo na tovrstno prakso predpisovanja zdravil ter morebitne posledice, ki lahko nastanejo.
Parent's corner: Pot do boljšega medsebojnega razumevanja šolastarši
Authors: Lazar Jolanda
Published: September 2023

Vsi vključeni deležniki priznavajo, da je pomembno sodelovanje med starši in šolo. Redko pa se vprašamo, v čem je pravzaprav vrednost tega sodelovanja. Sodelovanje šole s starši nima le pozitivnega vpliva na razvoj in napredek učenca, ampak prav tako na odnos med starši in otroki, nenazadnje pa tudi na učiteljevo delo. Čeprav je pozitivni vpliv sodelovanja šole s starši očiten, velikokrat pri tem naletimo na ovire. Odprava le-teh je ena izmed ključnih ciljev projekta Parent's corner. V projektu so partnerji iz sedmih držav, ki jih druži skupna želja po izboljšanju sodelovanja šole s starši. Projekt poteka od 2015 do 2018.
Metrike za evalvacijo strojnih prevodov
Authors: Sepesy Maučec Mirjam
Published: September 2023

Spremljanje napredka strojnega prevajanja je neločljivo povezano z ocenjevanjem kakovosti prevodov. Kako oceniti kakovost prevodov, ki jih je ustvaril program? Oceno lahko da usposobljen ocenjevalec. Kljub relativno dobro razviti metodologiji, ki jo v predavanju na kratko predstavimo, pa je tako ocenjevanje še vedno subjektivno, hkrati pa tudi drago, še posebej če želimo s sprotnim ocenjevanjem spremljati napredek strojnega prevajanja. Cenovno ugodnejšo alternativo predstavljajo metrike avtomatskega ocenjevanja kakovosti. V predavanju bomo predstavili nekaj v praksi najbolj uveljavljenih metrik. Posvetili se bomo tudi nekaterim izboljšavam, ki gredo v smeri ocenjevanja prevodov v pregibnem jeziku, med katere sodi tudi slovenščina. Strojni prevod je le redko uporabljen kot končni produkt, ampak je le vmesna faza prevoda, ki ga prevajalec nato popravi do želene kakovosti. Temu postopku pravimo popravljanje strojnih prevodov. Njegova osnovna ideja je pohitritev in pocenitev prevajalskih postopkov. Metrike avtomatskega ocenjevanja kakovosti prevodov si bomo ogledali tudi v luči popravljanja strojnih prevodov. Predstavili jih bomo kot cenilke napora, potrebnega za popravljanje strojnega prevoda do želene kakovosti. Strojno prevajanje je/bo orodje sedanjosti/prihodnosti, ki lahko prevajalcu olajša delo, le sprejeti ga mora.
Faze ustvarjanja vrednosti v slovenskih proizvodnih podjetjih
Authors: Palčič Iztok
Published: September 2023

V prispevku smo se osredotočili na faze ustvarjanja vrednosti v slovenskih proizvodnih podjetjih. Vrednostna veriga proizvodnega podjetja se lahko začne v fazi raziskav in razvoja (R&R) izdelkov ter poteka preko konstruiranja ter dizajna, proizvodnje, montaže, distribucije in do zaključnih prodajnih aktivnosti. Zanimalo nas je, kako pogosto naša proizvodna podjetja vključujejo R&R v svojo vrednostno verigo. Prav tako nas je zanimalo v kaki meri proizvodna podjetja izvajajo R&R in proizvodne aktivnosti pri sebi in v kaki meri jih prepuščajo zunanjim partnerjem (outsourcing) ter kako te odločitve vplivajo na izbrane značilnosti podjetij. Rezultati kažejo, da različni nivo vključevanja R&R ter proizvodnih aktivnosti v lastno vrednostno verigo vpliva na določene značilnosti proizvodnih podjetij.
COVID-19 Vaccination in Pregnancy
Authors: Sethi Ankita , Zangmo Rinchen , Roy KK , Rai Rakhi
Published: September 2023

COVID-19 pandemic has affected human lives globally. The most important measure to control this pandemic is vaccination and to follow public health measures like wearing facemasks, maintaining social distancing, and hygiene. Over the last one-year, numerous vaccines have been formulated under rigorous regulatory rules globally. During the process of vaccine development, antenatal and breastfeeding women were not included in vaccine research trials, even though they were at increased risk of developing severe COVID-19 infection in comparison to non-pregnant women. There is reassuring data that there are no safety concerns in antenatal patients who received mRNA vaccine in the third trimester and no evidence of increased miscarriage rate if taken at less than 20 weeks of pregnancy. In mRNA vaccine immunized pregnant women, antibodies were found in cord blood. The healthcare staff should provide effective counselling and promote immunization in antenatal women in all trimesters and breastfeeding mothers.
Cylinders and Assemblage- Sertoli-Leydig Cell Tumour -Ovary
Authors: Bajaj Anubha
Published: September 2023

Sertoli-Leydig cell tumour is an exceptionally discerned, ovarian neoplasm composed of sex cord or Sertoli cells admixed with stromal component expounded by Leydig cells. Sertoli-Leydig cell tumour may occur in association with DICER1 syndrome or emerge as a sporadic phenomenon. Sertoli-Leydig cell tumour manifests as well differentiated, moderately differentiated or intermediate grade and poorly differentiated neoplasms. Additionally, categories such as Sertoli-Leydig cell tumour with heterologous elements or retiform variant of Sertoli-Leydig cell tumour may be expounded. Majority of paediatric Sertoli- Leydig cell tumours are moderately differentiated or poorly differentiated, concur with DICER1 syndrome and frequently display heterologous elements or retiform tumour configuration. Histological categorization of neoplasms with enhanced tumour grade appears challenging.
Homocysteine as a Predictor of Preeclampsia
Authors: Vargas-Vera Ramón , Ibadango Martha Placencia , Silva Kalid Vargas , Curicama Elena Guanolema , Placencia Saúl Alencastro , Moreira Eneida Encalada
Published: September 2023

Homocysteine is an amino acid that is a product of methionine metabolism, is related to preeclampsia in 20-30%, the increase of this or hyperhomocysteinemia may result from the genetic defect of the enzyme methylenetetrahydrofolate reductase involved in the synthesis of homocysteine. Maternal mortality due to preeclampsia is up to 44% and perinatal mortality is reported at up to 27.8%. The objective of this research was to determine homocysteine levels as a predictor of preeclampsia in pregnant women 12 to 20 weeks pregnant. This was an observational, longitudinal and prospective investigation. The study population were patients attending the first antenatal care consultation between 12 to 20ava. weeks, the sample was random that included 360 patients who determined serum homocysteine Sand excluded 48 patients whodid not meet the inclusion and exclusion criteria; they found homogeneity among the patients, 270 patients (86.5%) had a normal evolutionary pregnancy, 27 patients (8.65%) had gestational hypertension, 9 (2.88%) mild preeclampsia and 6 patients (1.9%) severe preeclampsia, none developed HELLP syndrome. Increased homocysteine levels were found in 9 patients who were not related to hypertensive pregnancy disorders. In the present research, homocysteine was not shown to be a predictor of hypertensive disease in pregnancy.
Mülteci çocukların devam ettikleri ilkokulların yönetiminin okul yöneticisi bakış açısıyla değerlendirilmesi
Authors: BUCAK Mahmut , ERGİNER Aysun
Published: September 2023

Abstract

The aim of this research is to evaluate the management structure of primary schools from the perspectives of school administrators where refugee children are educated in Turkey. The research was designed as a case study from qualitative research approaches. While determining the study group, criterion sampling method from purposive sampling was used and school administrators of the four most crowded primary schools in ..... province were determined in terms of the number of refugee children. A total of seven school administrators were interviewed. Semi-structured interview forms developed by the researchers were used as data collection tool in the research. While forming the interview questions, expert opinion was taken and was tested with pilot applications. The data were analyzed by descriptive analysis and content analysis. Categories and codes were determined in line with the answers of the school administrators. In order to ensure the reliability of the research findings, quotations from the participants' opinions are included. With the research, it has been concluded that in addition to the problems such as language problems of refugee children, there are also problems such as cultural incompatibility, registration, attendance, resource, cleanliness, parental indifference, adaptation in school management.

Keywords: Refugee child, Migration, School administration, School administrator
Analysis of some “fashionable” cognitive strategies in pedagogy of higher education
Authors: Almazova Nadezhda I. , Popova Nina V. , Shipunova Olga D. , Kuzmina Anna V.
Published: September 2023

Relevance. Intellectual fashion plays an important role in determining the principles of organizing cognitive space in the practice of teaching the younger generation. The problem of choosing a cognitive strategy is key to the implementation of personal development within the framework of any educational model. A critical analysis of popular cognitive strategies enjoying increased attention from the scientific community is relevant, since the adherence of researchers to pedagogical fashion distracts methodologists from solving truly significant problems. The purpose of the study is a critical assessment of two phenomena of pedagogical fashion: the “flipped classroom” and content and language integrated learning (CLIL).
Research methods. Based on a theoretical analysis of scientific literature and systematization of existing methodological concepts, the correct methodological conditions for the implementation of these pedagogical strategies in a modern university are identified and justified.
Research results. It has been revealed that the name “flipped classroom” referring to the popular model of advanced independent students’ work is terminologically incompatible with the formal style of Russian scientific discourse. The idea that the effective use of modern digital resources in the university educational process should be associated only with this model is also subject to critical rethinking. The CLIL methodology used in teaching foreign languages should provide a dual focus in teaching, combining simultaneous mastery of both the subject and a foreign language within one basic discipline. Many CLIL proponents consider it a central phenomenon in teaching foreign languages, but consider it superficially, ignoring the differences between the methodologies of CLIL vs ESP (English for Specific Purposes) as well as CLIL vs EMI (English as Medium of Instruction).
Conclusions. It is more correct to consider the “flipped classroom” strategy as advanced independent students’ work or reverse learning as a form of blended learning. The review of Russian studies devoted to CLIL allows us to negatively assess the CLIL centralization trend without proper taking into account its differences from the ESP and EMI methodologies.
Análise do consumo alimentar durante a pandemia de covid-19 pela população adulta do estado de São Paulo
Authors: Silva Millena Tavares da , Silva Aldrin Eder da , Paiva Laércio da Silva , Leite Narjara Pereira
Published: September 2023

A Covid-19 é uma doença infecciosa e devido a rápida transmissão do vírus, foi necessário a adoção do isolamento social. Entretanto, o isolamento social traz à tona muitos sentimentos e emoções, e por consequência, a busca do conforto pode ser encontrada no ato de comer. Essa mudança pode originar doenças crônicas ou piorar um quadro existente. O objetivo do estudo foi analisar o consumo alimentar da população adulta de 18 a 50 anos residentes do estado de São Paulo, que permaneceu em isolamento social durante o período inicial da pandemia da Covid-19. Estudo observacional de caráter transversal. O público-alvo do estudo foram adultos, de ambos os sexos que se mantiveram em isolamento social no início da pandemia de Covid-19. Foi aplicado um questionário formulado no Google Forms contendo quatro seções: descrição do projeto com Termo de Consentimento Livre e Esclarecido, dados sóciodemográficos, preparo das refeições e frequência do consumo alimentar. Projeto aprovado pelo Comitê de Ética e Pesquisa (Protocolo 4.341.212. CAAE: 38986620.20000.0082). Participaram do estudo 342 indivíduos, sendo 258 (75,4%) do sexo feminino e 84 (24,6%) do sexo masculino. Quanto ao consumo alimentar, observou-se que houve aumento do consumo de arroz e feijão (21,9%), verduras e legumes (31,9%), frutas (30,1%), pães (35,1%), doces (58,5%) e alimentos em restaurantes tipo fast-food (31,0%). Os dados do estudo demonstram que houve aumento no consumo de alimentos ultraprocessados, o que pode favorecer o aparecimento ou piora das DCNT (doenças crônicas não transmissíveis), tornando-se fundamental ações que promovam e garantam a segurança alimentar e nutricional.
The impact of profitability, leverage, managerial ownership, and dividend payout ratio on income smoothing
Authors: Suwaldiman Suwaldiman , Lubis Rifda Nafiesah
Published: September 2023

This paper examined the impact of profitability, leverage, management ownership, and dividend payout ratio on income smoothing of companies listed in IDX in the range of 2015-2020 based on Eckel Index. The lower the Eckel Index the higher the intensity of income smoothing and vice versa. The hypothesis proposed were tested by a multiple regression analysis. This research concluded that return on asset, debt to capital ratio, and dividend payout ratio have significant and positive impacts on the Eckel Index. It is interpreted that the higher these variables, the lower the intensity of income smoothing. However, this research revealed that management ownership has a negative and significant impact on the Eckel Index, thus proving that managers ownership will drive them to conduct the income smoothing.
Численное исследование особенностей распространения акустических возмущений в нерегулируемом сверхзвуковом воздухозаборнике
Authors: Шорстов Виктор Александрович , Shorstov Viktor Aleksandrovich
Published: September 2023

С помощью программы «Трекер вихрей и волн» проведен ряд расчетов для выявления особенностей распространения акустических возмущений в канале сверхзвукового воздухозаборника с высоким уровнем неоднородности потока и турбулентности. Рассматривались задачи для цилиндрического канала с однородным потоком и выбранного нерегулируемого воздухозаборника. Выполнялись расчеты с возмущениями вентилятора и без них в постановках URANS и IDDES. С помощью построения диаграмм фазовых скоростей и сопоставления результатов разных расчетов были разделены и рассмотрены акустические возмущения, порожденные потоком, и эволюционирующие возмущения вентилятора. Работа содержит описания особенностей каждого из компонентов. Расчеты показали слабое влияние интенсивной турбулентности на темп затухания возмущений вентилятора и сильное влияние на их структуру, включающее изменение частоты. Отмечено, что быстрая трансформация исходной структуры возмущений должна повлиять на работу звукопоглощающих конструкций и процесс экранирования шума элементами планера. Следует обратить внимание на то, что течение в практически приемлемом воздухозаборнике будет более однородным и менее турбулентным, что требует дополнительных расчетов перед обобщением выводов.
Оценка точности современных кодов путем сопоставления расчетных и экспериментальных данных на примере задачи обтекания тандема клиньев разрежения и сжатия сверхзвуковым потоком вязкого турбулентного газа
Authors: Босняков Сергей Михайлович , Bosnyakov Sergei Mikhailovich , Березко Максим Эдуардович , Berezko Maksim Eduardovich , Дерюгин Юрий Николаевич , Deryugin Yurii Nikolaevich , Дубень Алексей Петрович , Duben Aleksei Petrovich , Жучков Роман Николаевич , Zhuchkov Roman Nikolaevich , Козелков Андрей Сергеевич , Kozelkov Andrei Sergeevich , Козубская Татьяна Константиновна , Kozubskaya Tatiana Konstantinovna , Матяш Сергей Владимирович , Matyash Sergei Vladimirovich , Михайлов Сергей Владимирович , Mikhailov Sergei Vladimirovich , Окулов М К , Okulov M K , Талызин Вадим Алексеевич , Talyzin Vadim Alekseevich , Уткина Анна Александровна , Utkina Anna Aleksandrovna , Харченко Николай Анатольевич , Kharchenko Nikolay Anatol'evich , Шевяков Владимир Иванович , Shevyakov Vladimir Ivanovich
Published: September 2023

Дано описание различных программных кодов для расчета полей течения в окрестности сложных конфигураций вязким потоком турбулентного сжимаемого газа. Проведена серия тестовых расчетов для тандема трехмерных клиньев разрежения и сжатия. Целью расчетов является анализ точности разрешения отрывных зон с использованием классических и вновь создаваемых методов. Для достижения цели описаны физические особенности течения и выполнено сравнение результатов расчетов, полученных разными кодами в рамках тестового случая «тандем клиньев сжатия и разрежения».
Ortaçağ'da İspanya Astronomisi
Authors: TAĞMAN Süleyman Ertan
Published: September 2023

Ortaçağ her ne kadar uzun bir süre bilimsel, kültürel ve felsefi anlamda karanlık bir dönem olarak adlandırılsa da, geçtiğimiz yüzyılda Duhem, Bernal, Gilson, Needham, Eco gibi düşünürlerin araştırmalarıyla, bu karanlığın bir nebze de olsa aydınlandığı söylenebilir. Bu çağın karanlık olarak adlandırılmasının iki temel nedeninden birincisi bu dönemde aydın[lığın] olmaması, ikinci neden ise gözlerin henüz bu karanlığa uyum sağlayamaması olabilir. Modern bilim paradigması ikinci nedenin temel müsebbibi gibi görünmektedir. Bu paradigmanın tüm bilim tarihini modern bilime doğru bir evrilme süreci olarak kabul etmesi ve akla dayalı olma, kuramlaştırma, nedensellik, sekülerlik, deneye ve gözleme dayalı olma gibi kriterleri temele alması Ortaçağ’a ilişkin yargının karanlık olarak adlandırılmasında etkin olmuştur. Bin yılı aşkın uzun bir zaman diliminde ve geniş bir coğrafyada yapılmış olan çalışmaların tamamının bu paradigmadan bağımsız şekilde değerlendirilme imkanı, Ortaçağ’a ilişkin yargının değişmesinde rol oynayabilir. Bunu yapma yollarından birisi de karanlık! Ortaçağ’ın merkezi olan Avrupa’daki tüm kültürlerin bu dönemde tamamıyla aynı süreci yaşayıp yaşamadığını belirlemeye çalışmaktır. Bu çalışmada İspanya’nın Ortaçağ’da bilim tarihine katkıları ve özellikle de astronomi alanındaki etkileri tartışılmıştır. Bunun için öncelikle İspanya’nın tarihsel süreci incelenmiş, astronomiye ilişkin genel tarihçe verilmiştir. Ardından Ortaçağ’da İspanya’nın genel karakteristiği özetlenmiş, modern bilim olarak adlandırdığımız sürece geçmeden önceki dönemlerde İspanya’da bilime özellikle de astronomiye olan ilginin nedenleri ortaya koyulmaya çalışılmış, ardından bilimsel devrime giden süreçte Müslüman ve Yahudi bilim insanlarının etkisinden bahsedilmiş ve İspanya’da modern bilime geçiş süreci incelenmiştir.
Plant phenology drives seasonal changes in shear stress partitioning in a semi-arid rangeland
Authors: Ziegler Nancy , Webb Nicholas , Gillies John , Edward Brandon , Nikolich George , Van Zee Justin , Cooper Brad , Browning Dawn , Courtright Ericha , LeGrand Sandra
Published: September 2023

Accurate representation of surface roughness in predictive models of aeolian sediment transport and dust emission is required for model accuracy. While past studies have examined roughness effects on drag partitioning, the spatial and temporal variability of surface shear velocity and the shear stress ratio remain poorly described. Here, we use a four-month dataset of total shear velocity (u*) and soil surface shear velocity (us*) measurements to examine the spatiotemporal variability of the shear stress ratio (R) before, during, and after vegetation green-up at a honey mesquite (Prosopis glandulosa Torr.) shrub-invaded grassland in the Chihuahuan Desert, New Mexico, USA. Results show that vegetation green-up, the emergence of leaves, led to increased drag and surface aerodynamic sheltering and a reduction in us* and R magnitude and variability. We found that us* decreased from 20% to 5% of u* as the vegetation form drag and its sheltering effect increased. Similarly, the spatiotemporal variability of R was found to be linked directly to plant phenological phases. We conclude that drag partition schemes should incorporate seasonal vegetation change, via dynamic drag coefficients and/or R, to accurately predict the timing and magnitude of seasonal aeolian sediment fluxes.
E-learning Versus On-Site Learning: an Approach to Determining Medical Students’ Perceptions at King Saud Bin Abdulaziz University for Health Sciences
Authors: Busaeed Reem , Alghamdi Malak , Abbas Aisha , Altassan Faten , Lamphon Raghad , Saad Sereen , Shuaib Suzan , Khan Muhammad Anwar
Published: September 2023

Background
Recently, the world has faced the COVID-19 crisis that has forced the education sector to switch from on-site learning to online learning. Thus, the aim of the current study was to investigate students’ satisfaction, performance, and communication during online learning.
Methods
This research was a descriptive, cross-sectional study. The participants were fourth-year medical students studying the musculoskeletal and skin (MSKS) block online and the neuroscience and vision (NEUV) block on site at King Saud Bin Abdulaziz University for Health Sciences/College of Medicine (KSAU-HS/COMJ) in the 2020–2021 and 2021–2022 academic years, respectively. We distributed two web-based questionnaires and obtained the students’ mean scores from the assessment unit. We collected qualitative and quantitative data and analysed it using descriptive statistics based on a chi-squared independent t-test.
Results
A total of 148 respondents completed the theoretical questionnaire, of which 35.1% were satisfied with the basic medical sciences (BMS) online course, and 26.35% believed that the online course material was easier to understand. The interaction among students and between students and instructors was much worse during the online courses (29.73% and 28.37%, respectively). We observed an association between gender and higher grade point average (GPA) online (p = .0164). For the second questionnaire, there were 120 participants. Although 68.33% of them were satisfied with online problem-based learning (PBL), 56.66% reported worse performance in online PBL. Of all the students, 74.16% preferred on-site practical sessions, and 66.6% believed that they performed better in on-site practical sessions. We identified a significant difference in the students’ mean scores (p < .0001).
Conclusion
This research revealed that the flexibility and convenience of online learning had a positive effect on students’ satisfaction. Our findings showed that a hybrid (online and on site) method can be used effectively in medical schools, but some aspects of the courses cannot be fully replaced by online learning.
Differentiation of solid and friable tumor thrombus in patients with renal cell carcinoma using volumetric analysis of computed tomography radiomic features
Authors: Kowal Paweł , Ratajczyk Krzysztof , Bursiewicz Wiktor , Trzciniecki Maciej , Marek-Bukowiec Karolina , Rogala Joanna , Mytsyk Yulian
Published: September 2023

Background.
Renal cell carcinoma (RCC) has a unique tendency to invade the inferior vena cava through the renal vein, forming a venous tumor thrombus (VTT). Precisely determining the solidity of the VTT before surgery is crucial for appropriate treatment planning and optimal outcomes, as the perioperative spread of friable thrombus can lead to life-threatening complications like pulmonary embolism. The aim of the study was to assess the applicability of CT volumetric analysis to differentiate solid and friable VTT in patients with RCC.
Methods.
Twenty-eight patients with RCC and VTT were enrolled in the study, in whom nephrectomy and thrombectomy were performed. Preoperative abdominal multiphasic contrast-enhanced CT was executed. Patients were categorized into solid or friable groups according to the consistency of the thrombus. For the volumetric texture analysis, the radiomic first-order features were calculated from the entire thrombus volume separately for each CT phase.
Results.
A significant association between the percentage of RCC cells in VTT and the radiodensity values of mean, median, 10th percentile of corticomedullary phase (CMP), mean and median of nephrographic phase (NP) was found. The percentage of RCC cells within the tumour thrombus showed a significant correlation with the CMP median (Pearson's r = 0.748), CMP mean (Pearson's r = 0.731), CMP 90th percentile (Pearson's r = 0.638), CMP 10th percentile (Pearson's r = 0.622) and NP median (Pearson's r = 0.450). The highest performance in differentiating between solid and friable VTT demonstrated the CMP median, with an area under the curve (AUC) of 0.934 (95% CI 0.846-1.0), sensitivity of 90% and specificity of 62%. The highest sensitivity and specificity in differentiating between solid and friable VTT showed CMP 90th percentile: 90% and 75%, respectively, AUC 0.928 (95% CI 0.830-1.0). The highest specificity (100%) had CMP mean, while the sensitivity and AUC were 85% and 0.925 (95% CI 0.827-1.0), respectively.
Conclusions.
Radiomic features of CT images, such as the mean, median and 90th percentile of CMP of the whole-volume VTT, provide an accurate means of distinguishing between solid and friable thrombus consistency in patients with RCC.
Preoperative anemia and its severity are associated with postoperative deep vein thrombosis in lower limb trauma patients: a cohort study
Authors: Yang Yitong , Wu Linqin , Zhang Hui , Cheng Bo
Published: September 2023

BackgroundThere is still lack of data on the relationship between the severity of preoperative anemia and postoperative deep vein thrombosis (DVT) following bone trauma. This study aimed to determine whether there is an association of varying degrees of anemia with postoperative DVT.MethodRetrospective analysis of clinical data on patients who underwent surgery for traumatic fractures of the femur, pelvis, or acetabulum between May 2018 and December 2022. Data on demographics, complications, surgical and fracture-related data, preoperative laboratory indicators, anticoagulation were collected, patients were categorized based on their last preoperative hematocrit (HCT) results. Univariate analyses and multivariable analysis were used to identify the independent risk factors associated with DVT.ResultsAmong the 284 cases with postoperative thrombosis, 61(21.5%) had no anemia before surgery, while 223(78.5%) had anemia before surgery. Among those with anemia, 65(29.1%) had mild anemia, and 158(70.9%) had moderate to severe anemia. Multivariable analysis results showed that age > 65 years (OR:2.761, 95%CI[1.673–4.557], p < 0.001), length of stay > 14 days (OR:1.683, 95%CI[1.175–2.410], p = 0.005), preoperative anticoagulation (OR:1.608, 95%CI[1.099–2.352], p = 0.015), anticoagulation after surgery > 24h (OR:1.865, 95%CI[1.221–2.848], p = 0.004), preoperative HCT ranging 33–30% and perioperative blood transfusion (OR:3.052, 95%CI[1.603–5.881], p = 0.001), and preoperative HCT < 27% and blood transfusion (OR:2.979, 95%CI[1.574–5.639], p = 0.001) were independent risk factors for postoperative DVT formation. The ROC curves showed that a preoperative HCT of 35.15% (AUC = 0.670, sensitivity = 64.6%, specificity = 61.2%) in males and 33.45% (AUC = 0.637, sensitivity = 63.7%, specificity = 60.2%) in females were the cut-off values for predicting postoperative DVT occurrence.ConclusionsThe risk of postoperative DVT increases with the severity of preoperative anemia in patients with bone trauma, and perioperative blood transfusion further increases the risk of DVT.Trial registration:ChiCTR2100049356.
Synthesis of 2-Dimensional Novel Ti3C2Tx/NaF nano-composites and Fabrication of Electrode for Electrochemical performance of Pseudo-capacitive Supercapacitor Device
Authors: Riaz M. Bilal , Hussain Danish , Awan Saif Ullah , Rizwan Syed , Zainab Sana , Shah Saqlain A.
Published: September 2023

The increasing global demand for energy storage solutions has spurred interest in advanced materials for electrochemical energy storage devices. Transition-metal carbides and nitrides known as MXenes, characterized by remarkable conductivity and tunable properties, have gained attention for their potential in energy storage applications. The properties of two-dimensional (2-D) MXenes can be tuned by doping or composite formation for energy storage applications. We report a novel Ti3C2Tx/NaF composite via a straightforward hydrothermal process for supercapacitor electrode applications. Three different composites with varying NaF concentrations (1%, 3%, and 5%) were synthesized under uniform conditions. Structural characterization using X-ray diffraction (XRD) and scanning electron microscopy (SEM) confirmed the successful formation of the composites, whereas, distinct shifts in XRD peaks and new peaks revealed the presence of NaF. Electrochemical performance was evaluated by cyclic voltammetry (CV), galvanostatic charging-discharging (GCD), and electrochemical impedance spectroscopy (EIS). The composites exhibited pseudo-capacitive behavior with reversible redox reactions during charge and discharge cycles. Specific capacitance of 191 F/g at scan rates of 2 mV/s was measured in 1M KOH. Electrochemical impedance spectroscopy (EIS) revealed an escalating impedance factor as NaF content increases within Ti3C2Tx. This study underscores the versatile energy storage potential of Ti3C2Tx/NaF composites, offering insights into their tailored properties and behavior.
Effect of Nitrogen Rate and Irrigation Regime on Tomato (Solanum lycopersicum L.) Yield in the low lands of North Shoa, Amhara Region, Ethiopia
Authors: Shewangizaw Beza , Kassie Kenzemed , Assefa Shawl , Lemma Getachew , Getai Yalmgena , Getu Demisew , Getanh Lisanu , Shegaw Getanh , Manaze Gebrehana
Published: September 2023

Crop productivity can be increased by application of optimum water and fertilizer. A field experiment was conducted in Eferatagidm district, North Shewa, Amhara, Ethiopia, during the irrigation season of 2019 and 2020 with the objective of determining N rate and irrigation depth for optimum tomato yield. The experiment consisted of factorial combinations of three-irrigation depths (75% ETc, 100% ETc, and 125% ETc) and four N rates (0 kg N ha− 1, 46 kg N ha− 1, 92 kg N ha− 1, and 138 kg N ha− 1). The treatments were laid out in a split-plot design with four replications. The main plot was arranged for the irrigation regime while the subplot was for the nitrogen rates. Data on growth, yield, and yield-related traits of tomatoes include; plant height, number of fruit clusters per plant, fruit length, fruit diameter, number of marketable fruits, number of un-marketable fruits, the total number of fruits, marketable fruit yield, un-marketable fruit yield, total yield were collected. Data were subjected to analysis of variance using R studio. The results indicated that the experimental site had low total nitrogen content and application of N fertilizer significantly improved tomato yield. Increasing irrigation depth also significantly increased tomato yield. The result indicated that the highest mean marketable fruit yield (35903 kg ha− 1) was obtained from the combined application of 125% ETc with 92 kg N ha− 1 while the lowest (13655 kg ha− 1) marketable fruit yield was obtained from 75% ETc with 92 kg N ha− 1. The partial budget analysis also indicated that the highest net benefit (266272 ETB ha− 1) as well as acceptable marginal rate of return (1240) for the invested capital was recorded from the combined application of 125% ETc with 92 kg N ha− 1. Therefore, the application of 125% ETc with 92 kg N ha− 1 resulted in highest net benefit.