bluuebunny/crossref_metadata_2025 huggingface dataset:
Morphological features and water solubility of iron in aged fine aerosol particles over the Indian Ocean
Authors: Ueda Sayako , Iwamoto Yoko , Taketani Fumikazu , Liu Mingxu , Matsui Hitoshi
Published: March 2023

Abstract. Atmospheric transport of iron (Fe) in fine anthropogenic aerosol particles is an important route of soluble Fe supply to remote oceans from continental areas. To investigate Fe properties of aerosol particles over remote oceans, we analyzed atmospheric aerosol particles over the Indian Ocean during the research vessel Hakuho Maru KH-18-6 cruise. Aerosol particles collected using a cascade impactor were analyzed using transmission electron microscopy (TEM) with an energy-dispersive X-ray spectrometry analyzer. The particle shape and composition on the sample stage of 0.3–0.8 μm aerodynamic diameter indicated that most particles collected north of the equator were composed mainly of ammonium sulfate. Regarding the particle number fraction, 0.6–3.0 % of particles contained Fe, which mostly co-existed with sulfate. Of those particles, Fe was found 26 % as metal spheres, often co-existing with Al or Si, regarded as fly ash, 14 % as mineral dust, and 7 % as iron oxide aggregations. Water-dialysis analyses of TEM samples indicated that Fe in spherical fly ash was almost entirely insoluble, whereas Fe in the other morphological-typed particles was partly (65 % Fe mass on average) soluble. Global model simulations mostly reproduce observed Fe mass concentrations in PM2.5 collected using a high-volume air sampler, including their north–south contrast during the cruise. In contrast, a marked difference was found between the simulated mass fractions of Fe mineral sources and the observed Fe types. For example, the model underestimated anthropogenic aluminosilicate Fe contained in matter such as fly ash from coal combustion. Our observations suggest that Fe in particles over remote ocean areas has multiple shapes and minerals, and further suggest that its solubility after aging processes differs depending on their morphological and mineral type. Proper consideration of such Fe types at their sources is necessary for accurate estimation of atmospheric Fe effects on marine biological activity.
A single-point modeling approach for the intercomparison and evaluation of ozone dry deposition across chemical transport models (Activity 2 of AQMEII4)
Authors: Clifton Olivia Elaine , Schwede Donna , Hogrefe Christian , Bash Jesse O. , Bland Sam , Cheung Philip , Coyle Mhairi , Emberson Lisa , Flemming Johannes , Fredj Erick , Galmarini Stefano , Ganzeveld Laurens , Gazetas Orestis , Goded Ignacio , Holmes Christopher D. , Horváth László , Huijnen Vincent , Li Qian , Makar Paul A. , Mammarella Ivan , Manca Giovanni , Munger J. William , Pérez-Camanyo Juan L. , Pleim Jonathan , Ran Limei , San Jose Roberto , Silva Sam J. , Staebler Ralf , Sun Shihan , Tai Amos P. K. , Tas Eran , Vesala Timo , Weidinger Tamás , Wu Zhiyong , Zhang Leiming
Published: March 2023

Abstract. A primary sink of air pollutants and their precursors is dry deposition. Dry deposition estimates differ across chemical transport models yet an understanding of the model spread is incomplete. Here we introduce Activity 2 of the Air Quality Model Evaluation International Initiative Phase 4 (AQMEII4). We examine dry deposition schemes from regional and global chemical transport models as well as standalone models used for impacts assessments or process understanding. We configure eighteen schemes as single-point models at eight northern hemisphere locations with observed ozone fluxes. Single-point models are driven by a common set of site-specific meteorological and environmental conditions. Five of eight sites have at least three years and up to twelve years of ozone fluxes. The spread across models that de-emphasizes outliers in multiyear mean ozone deposition velocities ranges from a factor of 1.2 to 1.9 annually across sites and tends to be highest during winter compared to summer. No model is within 50 % of observed multiyear averages across all sites and seasons, but some models perform well for some sites and seasons. For the first time, we demonstrate how contributions from depositional pathways vary across models. Models can disagree in relative contributions from the pathways, even when they predict similar deposition velocities, or agree in the relative contributions but predict different deposition velocities. Both stomatal and nonstomatal uptake contribute to the large model spread across sites. Our findings are the beginning of results from AQMEII4 Activity 2, which brings scientists who model air quality and dry deposition together with scientists who measure ozone fluxes to evaluate and improve dry deposition schemes in chemical transport models used for research, planning, and regulatory purposes.
Outcomes in patients with clinically suspected pedal osteomyelitis based on bone marrow signal pattern on MRI
Authors: Tiegs-Heiden Christin A. , Anderson Tanner C. , Collins Mark S. , Johnson Matthew P. , Osmon Douglas R. , Wenger Doris E.
Published: March 2023

Abstract. Objective: confluent T1 hypointense marrow signal is widely accepted to represent
osteomyelitis on MRI. Some authors have suggested that non-confluent bone
marrow signal abnormality should be considered early osteomyelitis. The
purpose of this study was to address this issue by comparing the rate of
osteomyelitis and amputation based on T1 marrow signal characteristics.
Materials and methods: a total of 112 patients who underwent MRI of the foot for the evaluation
of possible osteomyelitis were included. Patients were assigned to confluent
T1 hypointense, reticulated T1 hypointense, and normal bone marrow signal
groups.
Results: patients with confluent T1 hypointense signal on MRI had significantly
higher rates of osteomyelitis and amputation at 2 and 14 months post-MRI than the
reticulated T1 hypointense group (p<0.001). Six patients had normal
T1 signal, 16.7 % of whom had osteomyelitis and underwent amputation by 2 months post-MRI. Of 61 patients with reticulated T1 hypointense signal, 19.7 % had
a diagnosis of osteomyelitis at 2 months post-MRI and 30.8 % had
a diagnosis of osteomyelitis at 14 months post-MRI; moreover,
14.8 % and 31.5 % underwent amputation by 2 and 14 months post-MRI, respectively.
Of 45 patients with confluent T1 hypointense signal, 73.3 % of patients
had osteomyelitis at 2 months post-MRI and 82.5 % had osteomyelitis at 14 months post-MRI. In this group,
66.7 % underwent amputation by 2 months post-MRI and 77.8 % underwent amputation by 14 months post-MRI.
Conclusions: over half of the patients with suspected pedal osteomyelitis who had
reticulated or normal T1 bone marrow signal on MRI healed with conservative
measures. Therefore, we recommend terminology such as “osteitis”,
“reactive osteitis”, or “nonspecific reactive change” to describe bone
marrow edema-like signal and reticulated hazy T1 hypointense signal without
associated confluent T1 hypointensity. Moreover, we recommend that the MRI diagnosis
of osteomyelitis is reserved for confluent T1 hypointense bone signal in the
area of concern.
أثر برمجية الرسم الهندسي (GSP) في تنمية مستويات التفكير الهندسي وبقاء أثر التعلم لدى طلاب المرحلة الثانوية
Authors:   ماجستير في المناهج وطرق تدريس الرياضيات، كلية التربية، جامعة الإمام عبد الرحمن بن فيصل، المملكة العربية السعودية, خياط عامر
Published: March 2023

هدف البحث إلى تحديد أثر برمجية الرسم الهندسي (GSP) في تدريس الرياضيات على تنمية مستويات التفكير الهندسي لفان هيل وبقاء أثر التعلم لدى طلاب المرحلة الثانوية، ولتحقيق هدف البحث أَعَدَ البَاحِثَ دليلاً لتدريس الفَصْل الثالث: "المثلثات المتطابقة" بكتاب الرياضيات للصف الأول بالمرحلة الثانوية باستخدام برمجية الرسم الهندسي (GSP) وتحكيمه من قبل المتخصصين، كما اعتمد الباحث اختبار مستويات التفكير الهندسي (Usiskin, 1982) وفق نموذج فان هيل حيث ترجم الباحث الثلاثة مستويات الأولى من الاختبار (البصري، التحليلي، وشبه الاستدلالي)، وتم التأكد من الصدق والثبات للاختبار. واعتمد الباحث المنهج التجريبي ذو التصميم شبه التجريبي للمجموعتين التجريبية والضابطة، وتكونت عينة البحث من (49) طالبًا من طلاب الصف الأول للمرحلة الثانوية، (25) طالبًا يمثلون المجموعة التجريبية، (24) طالبًا المجموعة الضابطة، عُيِّنَت المجموعتانِ عشوائياً كما تم التأكد من تكافؤ المجموعتين في مستويات التفكير الهندسي قبل بدء التجربة الأساسية للبحث. أسفرت نتائج البحث عن: وجود فروق ذات دلالة احصائية بين متوسطي درجات طلاب المجموعة التجريبية ومتوسط درجات أقرانهم في المجموعة الضابطة في اختبار مستويات التفكير الهندسي لدى طلاب المرحلة الثانوية إجمالا وفي كل من مستوى من مستويات الاختبار كل على حدة (المستوى البصري، والمستوى التحليلي، والمستوى شبه الاستدلالي) تُعزى لاستخدام برمجية الرسم الهندسي في التدريس وذلك لصالح المجموعة التجريبية. وكذلك وجود فروق ذات دلالة احصائية بين متوسط درجات طلاب المجموعة التجريبية ومتوسط درجات أقرانهم في المجموعة الضابطة في بقاء أثر التعلم في التطبيق البعدي المؤجل لصالح المجموعة التجريبية. وفي ضوء ما أسفرت عنه النتائج أوصى البحث بضرورة تنمية التفكير الهندسي بمستوياته المختلفة، كهدف أساسي في تدريس الهندسة.
Efficacy of kinesio taping versus extracorporeal shock wave therapy in the short term for the calcaneal spur
Authors: NAS KIRDAR Nurten , KANYILMAZ Tuba
Published: March 2023

The calcaneal spur is a common cause of heel pain, and there are various approaches to its treatment. Our aim in this study is to investigate the effectiveness of kinesio taping against Extracorporeal Shock Wave Therapy (ESWT) in the treatment of calcaneal spur. This study was designed as a randomized controlled, prospective and single-center clinical trial. A total of 93 patients with calcaneal spur (18 men, 75 women) were included. Patients were divided into two groups (based on gender, age, BMI, and pain duration) by stratified randomization (kinesio tape group=46, ESWT group=47 patients). 3 sessions of ESWT were applied to the heels of the patients in the 1st group with an interval of 1 week. Kinesio taping was applied to the 2nd group. It was applied once a week, for 3 weeks. Visual Analogue Scale (VAS) and Foot Function Index (FFI) scores of the patients in both groups before the treatment and 1 week after the end of the treatment were recorded. When we evaluated the pre-treatment and post-treatment parameters, we found a significant decrease in VAS, FFI-pain, FFI-disability and FFI-activity restriction scores in both groups (p=0.0001). We also found that kinesio taping was more effective than ESWT in reducing FFI-pain (for after treatment FFI-pain inter group p=0.005, for FFI-pain difference inter group p=0.002) and FFI-disability (for after treatment FFI-disability inter group p=0.023, for FFI-disability difference inter group p=0.0001) scores. To conclude, although both kinesio taping and ESWT treatments reduced patients' pain, disability and activity limitation, kinesio taping was found to be more effective in reducing pain and disability. Studies with longer follow-up are needed to clarify our results.
Beyond cognition and sleep: Stop the domino effect
Authors: AMIN Shaimaa Nasr , KHASHABA Ahmed Sayed , ALAZZAM Ahmad Yousef , ALKHAWALDAH Hamzeh Mahmoud , ALBAKRI Khaled Anwer , ALMAJDOUBAH Omar Amjad , ALABDALLAT Yasmeen Jamal , ABU SEIF Ahmed Shaaban
Published: March 2023

Sleep problems, particularly sleep deprivation and fragmentations, are common hazards in modern lifestyles and maybe an unavoidable occupational drawback. Different metabolic or hereditary causes may induce sleep problems. Cognitive functions and the closely related metacognition, which depends significantly on decision making, are essential for learning and problem-solving. When impaired for any reason, the quality of life deteriorates, and the person may become dependent on others in severe cases of dysfunction. Sleep and cognition/metacognition are related, and an insult to one function may lead to the other domain's collapse. The present review highlights the significant causes and conditions of sleep problems, cognitive and metacognitive dysfunctions, the possible mechanisms, interactions, and the potential tools or agents that may improve them.
SCUBE-1 as a novel predictor of thromboembolic event
Authors: AKÇA Hatice Şeyma
Published: March 2023

SCUBE-1 is a newly identified, secreted cell surface protein that is determined during early embryogenesis. This protein consists of cascading EGF-like repeats following the N-terminal signal peptide sequence, a spacer region, cysteine-rich repeat motifs, and a CUB domain at the C-terminus. These molecules are stored in alpha granules in inactivated platelets, translocated to the platelet surface after activation by thrombin, secreted as small soluble fragments, and incorporated into the thrombus.
Role of transvaginal ultrasonography in determining endometrium cancer risk in asymptomatic postmenopausal women with thickened endometrium
Authors: GÜNKAYA Osman Samet , TEKİN Arzu , TEKELİOĞLU Meltem , GEDİK ÖZKÖSE Zeynep , BESTEL Ayşegül , KALKAN Üzeyir , TUĞ Niyazi
Published: March 2023

The aim of this study is to determine the cut-off value for the histopathological evaluation of premalignant-malignant endometrial pathologies from benign pathologies in postmenopausal asymptomatic patients with increased endometrial thickness. This cross-sectional study included a population that included asymptomatic 481 postmenopausal women with an endometrial thickness of more than 5mm in TVU who underwent diagnostic/ operative hysteroscopy and full curettage between January 2015 and January 2018. Demographic characteristics TVU, hysteroscopy findings of patients were recorded. As a result, in the histopathological outcome, 154(3%) women were evaluated as having normal endometrium, 189(39.3%) women as having endometrial polyps, 93(19.3%) women as having endometrial atrophy, and 23(4.6%) women as having endometrial simple hyperplasia, 5(1%) women as having endometrial simple hyperplasia, 17(3.5%) women as having endometrial atrophy and only one (0.1%) woman as having fibroids. In the 187 postmenopausal women with normal diagnostic hysteroscopic evaluation, histopathological findings were: 13(7%) endometrial hyperplasia, 2(1.1%) atypical endometrial hyperplasia, 27(14.4%) endometrial polyps, 4 2.1%) endometrial atrophy, and 2(1.1%) endometrial carcinoma. The endometrial thickness was analyzed with the ROC curve for cutoff value differentiating atypical endometrial hypreplasia/endometrial carcinoma from benign lesions and 10.5 mm was found with 90% sensitivity and 63% specificity. In conclusion, hysteroscopy is highly effective for identifying the endometrium and focal intracavitary pathologies such as polyps, myomas and foreign bodies in women with abnormal uterine bleeding. However, for the diagnosis of endometrial hyperplasia and cancer, hysteroscopic-guided biopsy with uterine curettage seems to be the best method.
Multiple endemic disease risk modeling using a Bayesian spatiotemporal shared components model
Authors: Jaya I Gede Nyoman Mindra , Chadidjah Anna , Andriyana Yudhie , Setyanto Gatot Riwi , Supartini Enny , Kristiani Farah
Published: March 2023

Traditionally, endemic diseases such as dengue, diarrhea, and tuberculosis are modeled separately, which leads to a limited understanding of current disease dynamics and an inaccurate evaluation of the parameters of the different models. In this study, we propose a joint spatiotemporal model to predict the risks of multiple endemic diseases and identify hotspots. The model includes spatial shared component random effects and a covariate for healthy behavior. The model was applied to the joint modeling of dengue, diarrhea, and tuberculosis in thirty districts in Bandung, Indonesia over a five-year period. Our findings show that the joint model was effective in understanding the characteristics of the diseases. One potential advantage of using shared component models is that they can identify diseases with spatial or temporal distribution patterns and consider shared risk factors that may be spatially correlated, such as climate. It is recommended to conduct exploratory analyses to determine the correlation between the risks of the diseases being studied and the reference disease before using this type of model.
A game theoretical approach for a green supply chain: A case study in hydraulic-pneumatic industry
Authors: Kurt Tuğçe Dabanlı , Akyol Derya Eren
Published: March 2023

As customers' orientation towards environmental products increases, manufacturers and other members of the supply chain are looking for ways to conduct their operations in an environmentally and cost-effective manner. To find a solution that compensates these requests, a game theoretical approach is developed for a two-stage green supply chain consisting of a supplier and a producer. A Stackelberg game model based on asymmetric information structure is developed to find the optimal lot sizes and raw material sales price for raw material supplier, and the product sales price and the environmental cost for the producer. The developed approach is illustrated on a real-world case study that deals with production and raw material procurement processes of a plastic plug and compared to a scenario in which no environmental expenditures exist. The effect of changes in the model has been observed by tuning some significant parameters with the experimental design approach.
Exploring the quality of the higher educational institution website using data mining techniques
Authors: Afif Mohammed Hameed
Published: March 2023

The website of higher educational institutes is considered a vital communication channel to provide main resources to their stakeholders. It plays an important role in disseminating information about an institute to a variety of visitors at a time. Thus, the quality of an academic website requires special attention to respond to the users’ demands. This study aims to explore the quality of the PSAU website based on data mining techniques. The first step: was collecting opinions about the PSAU website using a survey. After that, data mining processes were used as descriptive and predictive models. The descriptive model was applied to describe and extract the major indicators of website quality. Besides, the predictive model was applied to create models for predicting the website quality level. More than one classification algorithm was used. Naive Bayes and Support Vector Machine have given the best results in all performance indicators, and the achieved accuracy rate for both algorithms was 86% and 84% respectively. The results revealed that the overall quality level of the PSAU website is very good. The usability quality and content quality were very good. The service quality needs more attention. which indicated that the service level is inadequate and needs to be further enhanced. The results of the study should be useful to the deanship of Information Technology at PSAU, and website developers, in redesigning with high quality in terms of its usability, content, and service.
Integration of factor analysis and Tsukamoto’s fuzzy logic method for quality control of credit provisions in rural banks
Authors: Hidayat Yuyun , Sukono Sukono , Hartanto Predy , Purwandari Titi , Ibrahim Riza Andrian , Saputra Moch Panji Agung , Saputra Jumadil
Published: March 2023

Giving credit to debtors can pose a default risk. This risk arises because of an error in analyzing the credit risk rate of the debtor. Therefore, this study aims to design a framework for analyzing the credit risk rate of debtors so that the default risk can be reduced. This framework is created using the integration of factor analysis and Tsukamoto’s fuzzy logic method. This integration method can group many credit assessment variables into several decisive factors. In addition, the integration method can estimate credit risk rate firmly based on the α-predicate of each basic rule. This analytical framework is simulated on credit application data at a Rural Bank, in Indonesia. The simulation results show that there are three factors and one variable to measure the credit risk rate, namely: factor 1 represents repayment capacity, business length, working capital, and liquidity value; factor 2 represents the age and the difference between the granted and the proposed loan amount; factor 3 represents the stay length, character, and credit history; and one variable represents a dependent number. This research is expected to help credit institutions measure the credit risk rate in making credit decisions for prospective debtors.
Generalized lacunary statistical convergence of order β of difference sequences of fractional order
Authors: Aral Nazlım Deniz
Published: March 2023

In this paper, using a modulus function we generalize the concepts of ∆m−lacunary statistical convergence and ∆m−lacunary strongly convergence (m ∈ N) to ∆α−lacunary statistical convergence of order β with the fractional order of α and ∆α−lacunary strongly convergence of order β with the fractional order of α ( where 0 < β ≤ 1 and α be a fractional order).
Fuzzy totally semi alpha-irresolute mappings
Authors: Joseph S. , Balakumar R. , Swaminathan A.
Published: March 2023

The aim of this article is to introduce two new classes of mappings called fuzzy totally semi -irresolute mapping and fuzzy totally almost irresolute mapping. Moreover, their characterizations , examples and compositions of these mappings, their relationships between other fuzzy mappings are studied.
On $S_{\alpha }^{\beta }(\theta ,A,F)-$convergence and strong $N_{\alpha }^{\beta }(\theta ,A,F)-$convergence
Authors: Şengül Kandemir Hacer , Et Mikail , Çakalli Hüseyin
Published: March 2023

In this paper, we introduce strong $N_{\alpha }^{\beta }(\theta ,A,F)-$convergence and $S_{\alpha }^{\beta }(\theta ,A,F)-$% convergence with respect to a sequence of modulus functions and give some connections between strongly $N_{\alpha }^{\beta }(\theta ,A,F)-$convergent sequences and $S_{\alpha }^{\beta }(\theta ,A,F)-$convergent sequences for $% 0<\alpha \leq \beta \leq 1$.
Study to the Resonance of $ p $-Laplacian problem with mixed boundary
Authors: Haddaoui Mustapha , Lebrimchi Hafid , Tsouli Najib
Published: March 2023

In this work, we are interested at the existence of nontrivial solutions for a nonlinear elliptic problems with resonance part and mixed boundary conditions. Our approach is variational and is based on the well known Landesman-Laser type conditions.
Comparison of In vitro Antimicrobial and Antioxidant Activity of Acorus gramineus and Acorus calamus
Authors: Seo Kyoung-Sun , Yun Kyeong Won
Published: March 2023

The present study is aimed to compare the in vitro antimicrobial and antioxidant activity of Acorus gramineus and Acorus calamus (Araceae). The antimicrobial activity of the two plants was evaluated disc diffusion and minimal inhibition concentration (MIC) method against six strains. The ethyl acetate fraction of rhizomes extract from A. gramineus exhibited more antimicrobial activity against the tested Gram-positive and Gram-negative bacteria as compared to the other tested fractions. The antioxidant activity was evaluated by 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging assay. The results showed that the half inhibitory concentration (IC50) of ethanol extract of A. gramineus rhizomes was the lowest value, it means the highest antioxidant activity, while total polyphenol content was very low. It showed that the antioxidant activity was not directly related to the polyphenol quantity. The results will be supported as a good information on the use of the two plants in the pharmaceutical and food industries.
Antinociceptive Investigations of Rubiadin in Chronic pain induced by Freund’s adjuvant in mice
Authors: M. Somade Prakash , Anil Patil Pramod , N. Mali Suraj , S. Gavarkar Pratibha , Sharadanand Phatak Rohan , S. Chavan Rajashree , R. Chopade Atul
Published: March 2023

Main aim of study is to investigate the Rubiadin effects in mice model of chronic inflammation and pain. Complete Freund’s adjuvant (CFA) inflammatory model was used for investigation of chronic hypersensitivity. Prior CFA inflammation, Von Frey filaments and acetone induced cold sensitivity test was used to evaluate hypersensitivity, respectively. The paw edema was measured using digital plethysmometer. Intraperitoneally administered Rubiadin (100 and 200mg/kg) prior testing reduced CFA induced mechanical hypersensitivity. Rubiadin reduces evoked acetone cold hypersensitivity. Compared with vehicle, Rubiadin reduces paw edema too. Rubiadin reduced mechanical hypersensitivity significantly when administered two times a day from first to fifth day and from ninth to tenth day. In conclusion study revealed Rubiadin anti-nociceptive activity in chronic pain and also might be potential for effective management of pain.
Study of the protective effect of Pomegranate peel Ethanolic Extract on Gastric ulcer caused by stress on rats
Authors: Alsamaan Rana , Alhakim Farah
Published: March 2023

Lots of herbal recipes are used Syria for treating and preventing gastric ulceration, especially the pomegranate peel powder, so the aim of this study was to investigate whether the pretreatment with pomegranate peel ethanolic extract PPEE in two doses (250, 500mg/kg) has any prophylactic effect on gastric mucosal damage caused by cold-restraint ulcer (CRU) in rats. It was noticed that pretreatment for four weeks was enough to protect the stomach, the ulcer index (UI) was macroscopically calculated and the stomach wall layers were histologically studied, the higher dose (500mg/kg) was more effective comparing with the lower one (250 mg/kg). These results suggest that the pomegranate peel ethanolic extract PPEE has special characteristics that make it useful for preventing from the gastric ulcers caused by stress.
Nonlocal Solvability of the Cauchy Problem for a System with Negative Functions of the Variable $t$
Authors: Dontsova Marina
Published: March 2023

We obtain sufficient conditions for the existence and uniqueness of a local solution of the Cauchy problem for a quasilinear system with negative functions of the variable $t$ and show that the solution has the same $x$-smoothness as the initial function. We also obtain sufficient conditions for the existence and uniqueness of a nonlocal solution of the Cauchy problem for a quasilinear system with negative functions of the variable $t$.
How to implement online warnings to prevent the use of child sexual abuse material
Authors: Hunn Charlotte , Watters Paul
Published: March 2023

Online CSAM offending is a challenge for law enforcement, policymakers and child welfare organisations alike. The use of online warning messages to prevent or deter an individual when they actively search for CSAM is gaining traction as a response to some types of CSAM offending. Yet, to date, the technical question of how warning messages can be implemented, and who can implement them, has been largely unexplored. To address this, we use a case study to analyse the actions individuals and organisations within the technology, government, nongovernment and private sectors could take to implement warning messages. We find that, from a technical perspective, there is considerable opportunity to implement warning messages, although further research into efficacy and cost is needed.
Chi cerca trova: il lichen sclero-atrofico
Authors: De Nardi Laura
Published: March 2023

The case of a 7-year-old girl presenting with several cutaneous hypopigmented patches is described. The diagnosis of lichen sclerosus was finally made based on the presence of the typical perivulvar ivory white atrophic lesions.
La solita anemia sideropenica non responsiva
Authors: Talloa Dario
Published: March 2023

The author describes the case of a 15-year-old girl presenting with unresponsive iron deficiency anaemia and splenomegaly finally diagnosed as Gaucher’s disease.
Upward Feedback: Exploring Learner Perspectives on Giving Feedback to their Teachers
Authors: Wisener Katherine , Hart Kimberlee , Driessen Erik , Cuncic Cary , Veerapen Kiran , Eva Kevin
Published: March 2023

Introduction: Feedback from learners is known to be an important motivator for medical teachers, but it can be de-motivating if delivered poorly, leaving teachers frustrated and uncertain. Research has identified challenges learners face in providing upward feedback, but has not explored how challenges influence learners’ goals and approaches to giving feedback. This study explored learner perspectives on providing feedback to teachers to advance understanding of how to optimize upward feedback quality.
Methods: We conducted semi-structured interviews with 16 learners from the MD program at the University of British Columbia. Applying an interpretive description methodology, interviews continued until data sufficiency was achieved. Iterative analysis accounted for general trends across seniority, site of training, age and gender as well as individual variations.
Findings: Learners articulated well-intentioned goals in relation to upward feedback (e.g., to encourage effective teaching practices). However, conflicting priorities such as protecting one’s image created tensions leading to feedback that was discordant with teaching quality. Several factors, including the number of feedback requests learners face and whether learners think their feedback is meaningful mediated the extent to which upward feedback goals or competing goals were enacted.
Discussion: Our findings offer a nuanced understanding of the complexities that influence learners’ approaches to upward feedback when challenges arise. In particular, goal conflicts make it difficult for learners to contribute to teacher support through upward feedback. Efforts to encourage the quality of upward feedback should begin with reducing competition between goals by addressing factors that mediate goal prioritization.
INNER AND OUTER INTERCANTHAL DISTANCES IN A NIGERIAN POPULATION
Authors: Ese Anibor , Mamerhi Taniyohwo Enaohwo , Toluwanimi Jobome Glory
Published: March 2023

This study investigated the inner and outer intercanthal distances in a Nigeria population. Materials and Methods: The cross sectional study was  carried  on 384 adults (males and females) between the ages of 18-35years. This study was carried in Abraka, Delta State, Nigeria. A pair of digital venier calipers was used to carry out anthropometric measurement of the inner and outer intercanthal distances measured between the medial and lateral ends of the palpebral fissures respectively.The canthal index (CI) was calculated as [ICD x 100]/OCD. Simple descriptive and inferential statistics were calculated from the data obtained. Gender and age differences were scrutinized using the students’ t-test and correlation respectively. P value <0.05 was accepted as significant difference.  Results: The mean canthal dimensions for the Nigerian population was inner-canthal distance (38.65±1.49mm), outer-canthal distance (76.25±4.03mm), and canthal index (50.85±3.50). According to gender, inner-canthal distance was 39.15±1.44mm and 38.15±1.38mm, outer-canthal distance was 76.59±4.13mm and 75.89±3.91mm, and canthal index was 51.26±3.46 and 50.41±3.52 for male and female respectively. There was a significant difference (p<0.05) in the inner-canthal distance and canthal index between male and female. There was insignificant correlation between: age and inner-canthal distance (r= 0.082, p= 0.108), age and outer-canthal distance (r= -0.024, p= 0.641), and age and canthal index (r= 0.064, p=0.213). Conclusion: Sexual dimorphism occurred as the inner canthal distance and canthal index were significantly higher in males compared to females in the Nigerian population.
Russia in the Media and Public Space of Modern Kyrgyzstan
Authors: Dzhunushalieva G. D. , Dyatlenko P. I. , Kulikovsky A. V. , Moldokeeva A. B.
Published: March 2023

The article was prepared on the materials of a scientifc discussion held by the National Communications Development Research Institution, dedicated to the study of the communication regime in Kyrgyzstan. The authors examine the decline in the level of knowledge of the Russian language and interest in the Russian-language media, talk about the need to develop cooperation between the Kyrgyz and Russian media and civil society institutions, and develop the infrastructure of Russian schools, especially in rural areas. The question is raised about changing approaches to the choice of an event series to preserve the common historical memory of peoples. Noting the great positive signifcance of cooperation between Kyrgyzstan and Russia for the development of Kyrgyz society, the authors talk about important problems: the development of an anti-Russian infrastructure in Kazakhstan (supported by Western investors) and its impact on public opinion, especially Kyrgyz youth. The article was based on the results of a scientific discussion held at the National Communications Development Research Institution (NIIRC), Moscow, Russia in 2022.
Socio-Political Factors of Humanitarian Communication between Georgia and Russia
Authors: Khidirbegishvili A. А. , Khotivrishvili A. A. , Goryunov I. P.
Published: March 2023

The article considers the factors shaping the specifcs of cooperation between Russia and Georgia in the humanitarian sphere. The authors state a decrease in the intensity of scientifc, educational, and cultural communication. The impossibility of a fnal civilizational break is noted due to the commonality of the historical past, religion and culture. The key problem identifed is the impossibility of building full-scale humanitarian cooperation due to the lack of diplomatic relations and the presence in Russia of a visa regime to Georgia. The pragmatic position of the Georgian ruling elite towards Russia, as well as the growth of the tourist ﬂow of Russians to Georgia, are positive factors for the further development of cooperation in the humanitarian sphere. The authors conclude that in the absence of a political dialogue at the highest level, the impetus for the development of humanitarian cooperation can be given by organizations of the non-proft sector and diasporas of Georgians in Russia and Russians in Georgia. The article was based on the results of a scientifc discussion held at the National Communications Development Research Institution (NIIRC), Moscow, Russia in 2022.
COVID-19 vaccine side effects and its associated factors among healthcare workers
Authors: Arif Sarah , Sharm Ravi Dutt , Umair Muhammad , Anees Wahaj , Khan Samina , Javed Muhammad Asad , Jadoon Sofia
Published: March 2023

Background: Since the COVID-19 epidemic of Severe Acute Respiratory Syndrome (SARS COV-2) in 2019, with over 376 and 5.7 million people have contracted the disease and died as a result. Objective: This research evaluated the adverse effects of the COVID-19 immunization and its risks factors among healthcare professionals working in Pakistan. Methods: Healthcare professionals who received the Covid-19 vaccine at Mufti Mehmood Memorial Teaching Hospital Dera Ismail Khan, Pakistan, between June 2021 and May 2022 were the subject of the research. It was determined whether there was a significant connection between the distinct factors and the result variables using bivariable and multivariable binary logistic regression (MBLR) models. Results: One or more adverse effects were experienced by 198 (55.73%) of the healthcare employees who received the Covid-19 immunization. Fever, Headache, Myalgia, Tiredness, Injected site pain and dizziness (n=158; 44.63%, n=135; 38.13%, n=109; 30.79%, n=98; 27.68%, n=92; 25.98%, n=86; 24.29%; respectively) made up the bulk of the adverse effects. Healthcare professionals with less than eight years of employment (AOR: 3.47, 95% CI, 1.23-9.69), hesitancy to receive the Covid-19 vaccine's 1st dose (AOR: 3.11, 95% CI, 1.71-4.88), taking antihypertensive drugs (AOR: 2.51; 95% CI, 0.12-0.39), and immunization safety is viewed as being insecurely.
‘Malnutrition: A serious concern among hospitalized patients’ a cohort study of nutritional screening among admitted patients using GRAZ malnutrition tool- GMT
Authors: Malik Farhat Rehana , Farooqi Jalwa Javed , Khan Laiba , Khan Maheen , Noor Fatima , Khalid Maira
Published: March 2023

Objective: To identify the risks, causes, and degree of malnutrition among admitted patients using GRAZ Malnutrition Screening tool with gender and age groups comparison among private and public hospitals. Materials & Methods: A comparative cohort study was conducted upon 385 admitted patients of two Government and private hospitals from 1st Dec- 2019 to 31st March- 2020. A standardized validated tool was used with categories of weight loss within the last 3 months, BMI, changes in appetite, the severity of the disease, and age greater than 65 with a cut-off score of 3. The data was entered and analyzed through SPSS- Version 19 by computing, frequency, percentages, and Chi-Square test, with significant cut-off limit for P-Value was set at 0.05. Results: Among the 385 admitted patients 52.2 % (n= 201) were males and 48 % (n=184) females. The vulnerable age group was 39-58 Year with 40 % (n= 157) while 33.5 % (n= 129) were among 28-38 Year. Only 6 % (n= 21) were under-weight with BMI <18 / < 20. The risk of malnutrition among admitted females was 65.7 % (n= 121) as compared to 52.2 % males (n= 105) with GMS >3.
Impacto social del Centro Universitario Regional Marlon Zelaya Cruz, de la UNAN León, en Jinotega
Authors: Martínez Cubillo Francisco , Fletes-Membreño Francisco , Maradiaga-Reyes Fatima
Published: March 2023

Este estudio se realizó con el objetivo de conocer la opinión de los egresados sobre el CUR y como ha sido su parte laboral una vez que egresaron, para esto se utilizó una metodología con un enfoque cuantitativo, de tipo descriptivo, trabajando las siguientes variables: sexo, zona, estado civil y forma de culminación de estudio, de los datos obtenidos se destaca que el 66.1 % de los encuestados expresaron que su trabajo tiene relación con la carrera que cursó, el 97% indican que se sienten orgullosos de haber estudiado en el CUR y el 93% habla muy bien del prestigio de la Universidad.
Genetic pattern of the ST 61 cluster of the Cameroon family among Mycobacterium tuberculosis complex strains collected during the CANTAM I project in Cameroon
Authors: G.T. Tchoupe Alix Kevine  , Assam Assam JP  , Lionel Ulrich Tiani  , Génévieve Andoseh  , Ngono Ngane R.A  , Penlap Beng V
Published: March 2023

Tuberculosis (TB) remains one of the most outstanding diseases in global health concern. It is caused by Mycobacterium tuberculosis Complex (MTBC) strains. ST 61, a cluster of the LAM10_CAM family has been shown to be the most prevalent cluster implicated in TB transmission in Cameroon. The present study is aimed at revealing the most discriminative loci applied to this cluster and investigating the genetic pattern in the ST 61 cluster clinical samples. This was a 12 month cross- sectional study that included 45 randomly selected clinical specimens previously collected during the CANTAM 1 project. Following DNA extraction, amplification of 12-locus Mycobacterial Interspersed Repetitive Unit-Variable Tandem Repeat (MIRU-VNTR) analysis (MIRU 40, ETR A, QUB 26, Mtub 39, QUB 4156, MIRU26, MIRU 31, MIRU 16, MIRU 02, MIRU 04, MIRU 23, and MIRU 27) PCR assay and gel electrophoresis were performed. The amplicon sizes, the allele assignations, the allelic pattern and the technic discriminative potential were determined using MIRU-VNTR plus web application and a dendogram was generated. 45% genetic pattern, and 66,6% clustering rate were reported. Overall, ETR A, MIRU 4, MIRU 16, MIRU 23, MIRU 27 revealed as the most discriminating loci applied to the cluster ST 61. The identification of the most discriminative locus ETRA, MIRU 4, MIRU 16, MIRU 23, and MIRU 27 applied to a precise cluster is a safe economic and time gain option to enhance the difference between strains at the cluster level.
Design study of offshore floating wind and photovoltaic power generation platform
Authors: Chen Siqi , Wang Zijia , Yang Wenxin
Published: March 2023

The oceans contain a huge amount of clean energy, of which wind and solar are the largest reserves and the easiest to access. In consideration of the many factors affecting traditional offshore semi-submersible platforms, the design of an offshore semi-submersible platform that can overcome the harsh marine environment and work efficiently is based on overcoming the many problems of low stability, low efficiency, and poor economy of existing semi-submersible platforms. The text, therefore, builds on previous designs to design an offshore floating platform that combines a floating wind turbine with photovoltaic power generation. Firstly, the paper combines various design concepts, proposes a model concept for the floating platform and the corresponding structural dimensions, designs the ballast system, and selects the materials for each part. The paper concludes with a simple calculation of the stability, loads, and cost of the structure. The overall high initial stability (GM) of the structure is greater than zero, the wind and wave loads are estimated to be 350,000 N and 50 million N respectively, and the cost is about 58,500,000 RMB per kW. The research offers a new approach to the future development of new green energy sources in the ocean and has implications for the design of new integrated concepts for floating platforms. The paper concludes by looking forward to the design of a more stable, economical, and efficient offshore floating power platform that will provide a new way of maximizing the exploitation of offshore energy for human society.
Profiling and reporting statewide energy outlook based on data analytics
Authors: Chen Runnan
Published: March 2023

The new energy production and consumption revolution have made a huge leap since humans entered the 21st century. Generally, researchers can categorize energy twofold: traditional and green resources. Also, a handy work for governors nowadays is evaluating regional energy utilization by checking different energy indexes. However, the diversity of energy resources hinders managerial personnel from effectively judging energy utilization performance. The selection of appropriate KPIs can be quite exhaustive and confusing. In this paper, the data analytics assists and validates the methodology for picking up energy indicators. Then, data visualization provides four portfolios of statewide energy performance. It extends the analysis to the future, and the forecasting visualization offers the possible trends for four states. The discussion and comparison of these four states’ performance finalize this paper.
Simulation of Hafnium-Based FinFET and Ferroelectricity of Related 2-Dimensional Hafnium-Based Materials
Authors: Wu Haoyu
Published: March 2023

The application of MOSFET is constrained because  cannot be successfully scaled down as the power density per unit area in an integrated circuit growing exponentially. Inserting ferroelectric layer can cause Complementary Metal-Oxide-Semiconductor (CMOS) to transit to Negative Capacitance CMOS (NCMOS), which presents steeper Subthreshold Swing (SS) and a higher  ratio. However, typical ferroelectric materials are not compatible with present CMOS production process. In this work, both Hafnium-based FinFET compatible with CMOS and normal Silicon-based FinFET are simulated to compare their electrical properties. The result shows that the drain current of Hafnium-based FinFET is 3.52 times larger than the Silicon-based one when gate voltage is 1.0V. In addition, the on/off current ratio also raises from  to . Other detailed electrical properties of Hafnium-based FinFET are also given out, including electric field distribution and valence band energy. Besides, through ab-initio calculation based on Density Functional Theory (DFT), 2-dimensional Hafnium dioxide which is different from bulk Hafnium dioxide is simulated to show its ferroelectricity.
Key Technologies and Development Challenges of High-proportion Renewable Energy Power Systems
Authors: Zhang Houji
Published: March 2023

China promises to reach peak carbon dioxide emissions by 2030 and carbon neutrality by 2060. It will need to make every effort to achieve these objectives. Among all, the development of the renewable industry is the key way and roadmap. When high-proportion wind and solar energy are integrated into the power grid. The randomness and uncertainty of renewable energy reduced the safety margin and influenced the stability of the power grid. In this paper, the present situation of renewable energy in China is introduced. Total installed solar generation capacity was about 250 GW in China by the end of 2020, accounting for one-third of the world's total installed capacity. The capacity for wind energy generation was about 280GW. It has the highest generation capacity in the world. It also presents the potential challenges of integrating large-scale renewable energy into the power system and proposes mitigation techniques and is valuable for further research.
State-of-the-arts Thermal Management Systems for New Energy Vehicles
Authors: Zhao Ruicheng
Published: March 2023

With the rapid progress of automobile manufacturing industry, people's demand for energy is gradually expanding, and smog is gradually appearing in cities. New energy has gradually become a new direction of automobile development, with its dual advantages of not only reducing emissions but also saving energy. Lithium battery is the main component of new energy vehicle, and its temperature will be in the heating process of current input and loss. The average temperature distribution directly affects the service life and functional effect of the battery, and the stability of the battery determines whether it can bear much power. If the car is running, the heat of the battery can't be dispersed in time and the local temperature is too high, the life of the battery will be reduced rapidly, and even more seriously, it will lead to fire. Therefore, in order to make the battery pack of the new energy vehicle heat evenly, and the reliability and safety of the new energy vehicle work continuously and effectively, A battery heat dissipation structure is determined in order to improve the overall performance of the lithium-ion battery. The latest thermal management systems for new energy vehicles are thoroughly examined in this paper.
Review of Hydrogen Fuel Cell Vehicles
Authors: Hu Zhentian , Sheng Jiahao , Xu Mengyang
Published: March 2023

As a new energy vehicle, the hydrogen fuel cell vehicle has the characteristics of zero-pollution and zero-emission, which has attracted widespread attention from all over the world. At the same time, various problems encountered in the application of hydrogen energy need to be resolved urgently. The article mainly analyses the current hydrogen production emissions and the leakage of hydrogen fuel cell vehicles. This article first analyses the principles and emissions of traditional and new hydrogen production methods, and then analyses the current research status of hydrogen fuel cell vehicle leakage through a combination of various theoretical and experimental studies, and proposes reasonable suggestions for future research directions.
Study on Composition Analysis and Identification of Ancient Glass Products
Authors: Sun Xin
Published: March 2023

In this paper, an entropy-TOPSIS model is established to analyze and identify the composition of ancient glass products, which solves the relationship between the type, decoration, colour of glass and the surface weathering of glass cultural relics; The multivariate linear regression model is established, which solves the problem of statistical law of weathering chemical composition content on the surface of cultural relics samples. A random forest classification model based on an ant colony algorithm is established to solve the problem of determining the importance of chemical composition, and a K-means clustering model is established to solve the problem of sub-class division within the group; A grey correlation analysis model was established to solve the problem of the correlation between the chemical composition of the same type of glass.