bluuebunny/crossref_metadata_2025 huggingface dataset:
Major aspects of minimally invasive endodontic surgery using microsurgery: a systematic review
Authors: Gonzales Cleber Lorensini , Dolce Vinicius de Moraes , Castro Fábio Pereira Linhares de
Published: June 2024

Introduction: Knowledge about endodontic infections has increased significantly over the last 50 years and, although many issues still require elucidation, endodontics has become the dental science that has the most improved approaches and technologies to increase the success and longevity of treatments dental organs. Endodontic microsurgery has produced highly successful results in preserving teeth with persistent or recurrent cases of periapical periodontitis that could not be successfully treated by non-surgical endodontic approaches. Objective: It was to list the main clinical considerations of minimally invasive endodontic surgery using apical microsurgery, as well as point out the success rate of this technique. Methods: The PRISMA Platform systematic review rules were followed. The search was carried out from January to March 2024 in the Scopus, PubMed, Science Direct, Scielo, and Google Scholar databases. The quality of the studies was based on the GRADE instrument and the risk of bias was analyzed according to the Cochrane instrument. Results and Conclusion: A total of 117 articles were found, 50 articles were evaluated in full and 20 were included and developed in the present systematic review study. Considering the Cochrane tool for risk of bias, the overall assessment resulted in 10 studies with a high risk of bias and 21 studies that did not meet GRADE and AMSTAR-2. Most studies did not show homogeneity in their results, with X2=58.5%<50%. It was concluded that the success of apical endodontic surgery in terms of healing existing periapical pathology, together with a good long-term prognosis, depends on correct diagnosis and planning, as well as the association of surgical techniques, well-executed protocols, and biocompatible materials. The apical endodontic microsurgery approach is predictable and has a high success rate, which resulted from the introduction of cone beam computed tomography, microscope, ultrasonic instruments, and materials such as mineral trioxide aggregate (MTA) and bioceramics for retro-fillings.
ASSESSMENT OF CLIMATE CHANGE IMPACT ON SURFACE WATER QUALITY IN SHARE-TSARAGI AND IT’S ENVIRON IN KWARA STATE, NIGERIA
Authors: Mafimisebi Peter , Martins Grace
Published: June 2024

Climate change affects surface water resources through changes in evaporation, surface water recharge, temperature, runoff, and rainfall. Such changes affect the mobilization of nutrients and the distribution and mobility of pollutants in surface water systems. The present study attempts the physiochemical and hydrochemical characterization of surface-quality water in the Share-Tsaragi and its environs in Kwara State, Nigeria. A total of ten (10) water samples were collected from the study area. The physiochemical characteristics such as pH and total dissolved solids (TDS) were determined to understand the surface water characteristics, and the results showed that pH (6.39 to 7.67) and total dissolved solids (35 to 230 mg/l) were significantly moderate across the different stations. This indicated that all the water samples are good for drinking and irrigation. The hydrochemical data were utilized to generate graphical representations and scientific computations that determined the relationship between chemical components and water quality. The main elements found in the samples were Ca‐HCO3 - . Piper diagram indicates that the water samples are made of mixed Ca‐Na‐HCO3 - and mixed Ca‐Mg, indicating transient hardness. Gibbs plots show that water chemistry is primarily influenced by rock-water interactions and precipitation processes. The Gibbs plots show a change with increased bicarbonate and lower TDS, indicating salt intake through precipitation.
PRELIMINARY ASSESSMENT OF GROUNDWATER POTENTIAL ZONES IN AYEDE-EKITI, EKITI STATE, SOUTHWESTERN NIGERIA USING ELECTRICAL METHODS
Authors: Gbadero Gideon , Mafimisebi Peter , Martins Grace
Published: June 2024

An electrical resistivity survey was conducted at different locations within Ayede Ekiti, Ekiti State, Southwestern Nigeria. This is aimed at evaluating groundwater potential zones and aquifer properties within the study area. Data were acquired at four (4) different locations using the vertical electrical sounding method by employing the Schlumberger array configuration. This study utilizes resistivity data processed with IPI2win software to analyze the subsurface geology of a basement complex region. The result of the study showed that qualitatively, three major curve types (A, HA, and H) were observed. Varying curve types, predominantly A curves, were observed across the research area, with notable groundwater potential indicated by H and HA curve types at select points. Through curve matching techniques, three to four distinct geo-electric layers were identified, while the quantitative interpretation resulted in deducing layers with different resistivity and thickness values for each VES(s) of the study area. It was deduced that the VES 2 and 3 zones are connected to a high output of groundwater. However, VES 1 and 4 are characterized by low groundwater potential. This research contributes valuable insights for geological mapping and groundwater resource assessment in complex basement terrains of the study area.
Correlation between parameters influencing skill acquisition in cataract surgery simulation
Authors: Sarossy Alexander , Gin Callum , Reyna Jorge , Khanal Santosh , Chakrabarti Rahul
Published: June 2024

Introduction

The EyeSi (Haag-Streit, Manheim, Germany) cataract surgery simulator is the most commonly used virtual reality simulator internationally to train Ophthalmology registrars. It consists of a Cataract Challenge Course (CCC), which is a virtual reality simulation (VRS) of cataract surgery. In this study, we aimed to determine any correlation between the parameters measured on the EyeSi virtual reality cataract surgery simulator and if they can predict the progression of microsurgical skill acquisition and development amongst ophthalmology trainees.

Methods

Data on the performance of 56 Ophthalmology trainees (training ophthalmic surgeons) at the Royal Victorian Eye and Ear Hospital were analysed from 2018 to 2022. The trainees ranged from first to fourth year of training. Analysed parameters included Initial Task Performance, Time to Gate (the time to reach a threshold score – 50% in this case), and Peak Performance. Relationships between the parameters were analysed with Pearson r, and the significance of the difference between correlations was analysed with the psych package in R.

Results

The strongest correlation was found between initial and peak performance (r = 0.810), which was significantly greater than the correlation between Initial Task Performance and Time-to-Gate (r = 0.553, p = 0.03). Time-to-Gate was weakly correlated with Peak Performance (r = 0.475). The average total training time was 1123 minutes, ranging from 252 to 2039, and the mean peak CCC score was 442, ranging from 166 to 496.

Conclusions

Time-to-Gate, Initial Task Performance and Peak Performance are interlinked, indicating that trainees with the highest initial performance remain ahead in ability and can progress through VRS training more rapidly. Data also indicated that the EyeSi platform ultimately prioritizes a wide range of skills over mastery of a few – as participants who spend longer on ‘perfecting’ each stage of the simulator are not truly rewarded points-wise in comparison to those who rush through stages, as rushing through stages grants trainees a far higher overall score for each section (with one’s score ideally being a numeric representation of one’s ‘ability’). Consequently, the authors believe that virtual reality systems play a crucial role in training surgical registrars. However, their scoring systems should focus on skill mastery to facilitate maximal acquisition of skills.
Kinematic analysis of the time variable and its relationship to some bio-kinematic variables and the performance of the wheel skill on the floor movements mat for gymnast players aged 7 – 9
Authors: Fatima Al-Zahraa Nafaat Abdul Karim  , Intisar Kadhim Abdul Karim
Published: June 2024

أن التحكم في زمن أداء كل جزء من حركة العجلة البشرية بالشكل الذي يخدم الهدف يعد من العوامل المهمة التي تحدد نجاح استمرارية أداء الحركة،  لذلك من المهم جدا ان يتعلم اللاعب القدرة على التحكم في كيفية اظهار التسارع اثناء الدوران ، واظهار السكون اللحظي اثناء التوازن. ويعتمد نجاح تنفيذ العجلة البشرية على مقدار قوة  وسرعة الدفع للرجلين واليدين وكذلك على العلاقة المتبادلة فيما بينهم ،  ويلاحظ ان من المشاكل التي يقع فيها الكثير من اللاعبين والتي تسبب انخفاض في مستوى اداء العجلة البشرية هو ضعف العلاقة بين متغيرات الزمن في أجزاء متعددة من الحركة من جهة وكذلك ضعف الترابط بين الزمن وباقي المتغيرات البايوكينماتيكية ، وهذا يؤدي الى عدم توظيف متغير الزمن والمتغيرات البايوكينماتيكية في مراحل تنفيذ العجلة البشرية بالشكل الذي يخدم تسلسل المسار الحركي للحركة. وهدفت الدراسة الى التحليل الميكانيكي لمتغير الزمن وبعض المتغيرات البايوكينماتيكية في مهارة العجلة البشرية والتعرف على العلاقة بين متغيرات الزمن في مسار العجلة البشرية  وعلاقة متغيرات الزمن مع المتغيرات البايوكينماتيكية  وكذلك  العلاقة بين أداء العجلة البشرية والمتغيرات البايوكينماتيكية قيد البحث, وقد فرضت الباحثتان بعدم وجود علاقة ذات دلالة إحصائية بين بعض متغيرات الزمن في مسار العجلة البشرية .وكذلك لا توجد علاقة ذات دلالة إحصائية بين بعض متغيرات الزمن وبعض المتغيرات البايوكينماتيكة وأداء مهارة العجلة البشرية . اشتملت عينة البحث على 12 لاعب من لاعبين المركز الوطني لرعاية الموهبة الرياضية للجمناستك. وقد صورت مهارة العجلة البشرية بكاميرا ذات سرعة 120 صورة /ثا وتم تحليل مجموعة من المتغيرات  البايوكينماتيكية لأجزاء مراحل.  اهم النتائج التي توصلت لها الباحثتان : ان معظم علاقات الارتباط كانت معنوية بين متغيرات الزمن لمراحل مختلفة من العجلة البشرية وهذا يؤكد على ان اللاعبين يدركون أهمية الزمن في تحديد جودة الاداء, ظهور عدد كبير من العلاقات الغير معنوية بين متغيرات الزمن والمتغيرات البايوكينماتيكية الأخرى حيث يشير هذا الى العشوائية في توظيف الزمن في خدمة المتغيرات البايوكينماتيكية, النتائج الغير معنوية ما بين الزمن والمتغيرات الأخرى يؤكد الى افتقارهما للتناغم والتناسق في العمل مع بعضهما البعض. وهذا ما يحقق احد اهداف التنمية المستدامة للامم المتحدة في العراق (التعليم الجيد).
تأثير استراتيجية KUD في تعلم مهارتي الطبطبة والتصويب بكرة السلة للطلاب
Authors: زهراء خالد عبد الواحد  , اقبال عبد الحسين نعمة
Published: June 2024

تطرقت الباحثتان الى استراتيجية KUD التي  تعد استراتيجية تعليمية تعلمية تستند إلى تشجع التعلم بفاعلية وتطلق الطاقات الكامنة عند المتعلمين في جو من الحرية والأمان يسمح بظهور كل القدرات والأفكار حيث يكون المتعلم في قمة التفاعل مع الموقف , ونظرا قلة استخدام الاستراتيجيات الحديثة كاستراتيجية KUD  ولاسيما في كرة السلة , فأن الباحثتان اعتمدتا في تحديد مشكلتهما في محاولة الإفادة من الاستراتيجيات الحديثة كاستراتيجية KUD  لتعليم الطلاب مهارات كرة السلة , ولاسيما وان المتعلمين في عمر يسمح لهم بفهم واستيعاب وتطبيق هذه الاستراتيجية. وقد هف البحث الى التعرف على تاثير استراتيجيةKUD  في تعلم مهارتي الطبطبة  والتهديف بكرة السلة لطلاب المرحلة الاولى في كلية التربية البدنية وعلوم الرياضة في جامعة ميسان، وأستخدمت الباحثتان المنهج التجريبي بأسلوب المجموعتين المتكافئتين، وتكونت عينة البحث من (30) طالبا من طلاب المرحلة الاولى في كلية التربية البدنية وعلوم الرياضة في جامعة ميسان، تم تقسيمها الى مجموعتين متساويتين احداها تجريبية والاخرى ضابطة ,و استخدمت الباحثتان اختبارات لمهارتي الطبطبة والتصويب بكرة السلة، وتم تطبيق الوحدات التعليمية المعدة من قبل الباحثتان على طلاب المجموعة التجريبية , اما المجموعة الضابطة فقد خضعت للوحدات التعليمية المعدة من قبل مدرس المادة وتم اجراء الاختبارات البعدية بعد الانتهاء من تطبيق الوحدات التعليمية ومعالجة البيانات باستخدام  برنامج SPSS للحصول على النتائج ، واستنتجت الباحثتان إن التدريس باستخدام استراتيجية KUD كان له الأثر في رفع مستوى طلاب المجموعة التجريبية. في تعلم مهارتي الطبطبة والتهديف بكرة السلة، واوصت الباحثتان بتشجيع وحث مدرسي ومدرسات كرة السلة على استعمال استراتيجية KUD في في تعليم الطلاب مهارات كرة السلة ضمن المنهج الدراسي في كليات التربية البدنية وعلوم الرياضة للبنات . وهذا ما يحقق احد اهداف التنمية المستدامة للامم المتحدة في العراق (التعليم الجيد).
تقويم مدى فاعلية استخدام اسلوب التدريس الحس حركي لمدرسي مادة كرة السلة في الدروس العملية من وجهة نظر طلبتهم
Authors: هناء عباس عبد الله
Published: June 2024

ان التقدم والحداثة التي تم ادخالها على النظام التعليمي والتربوي اثر بشكل كبير في العمليات التعليمية وطريقة عرض الموضوع وشرحه على الطلبة حيث اصبح الاعتماد الكبير في عملية التعلم هو كيفية التفاعل بين المتعلم والمادة المراد تعلمها واتاحة الفرصة الكافية للمتعلم للتعلم وإعطاءه الحرية والثقة بالنفس بغية تحقيق الهدف من التعلم .  وهنا تكمن مشكلة البحث  من خلال عمل الباحثة كتدريسية في كلية التربية البدنية وعلوم الرياضة ومن خلال تدريسها لمادة كرة السلة لاحظت ان هنالك قصورا لدى بعض التدريسين من خلال استخدام الاسلوب الامثل في التدريس من قبل التدريسين وقد صاغت الباحثة مشكلة بحثها من خلال السؤال التالي ( ما مدى فاعلية استخدام اسلوب التدريس الحس حركي لمدرسي مادة كرة السلة في الدروس العملية من وجهة نظر طلبتهم). هدفت الدراسة الى تكيف استبانة (اسلوب التدريس الحس حركي) لمدرسي مادة كرة السلة في الدروس العملية من وجهة نظر طلبتهم و التعرف على استجابات العينة من طلبة المرحلة الثانية في كلية التربية البدنية وعلوم الرياضة – الجامعة المستنصرية .  وقد تم حصر مجتمع البحث من جميع طلبة المرحلة الثانية في كلية التربية البدنية وعلوم الرياضة / الجامعة المستنصرية والبالغ عددهم (195) طالب وطالبة حيث تم اعتماد الباحثة على نسبة (100%) واخذهم جميعا ومن ثم قامت الباحثة بتوزيع عينة البحث الى ثلاث عينات (استطلاعية – تكييف – تطبيق) وتوصلت الباحثة الى عدد من الاستنتاجات كانت أهمها :الى ضرورة ان يقوم مدرس المادة بتدوين كل ما يدور في الدرس من اخطاء وامور متعلقة بالدرس لغرض تلافيها في المستقبل . وضرورة مساعدة الطلبة في الدروس العملية على تأدية المهارات من خلال التكرار لأكثر من مرة لغرض تثبيت المهارة  ومن الضروري ان يبحث مدرس المادة بشكل معمق للأسباب التي تودي الى عدم تأدية الطلبة للمهارات المطلوبة وخرجت الباحثة بعدة  توصيات منها: ضرورة ان يقوم مدرس المادة بتدوين كل ما يدور في الدرس من اخطاء وامور متعلقة بالدرس لغرض تلافيها في المستقبل . وهذا ما يحقق احد اهداف التنمية المستدامة للامم المتحدة في العراق (التعليم الجيد)
FATORES DE RISCO E PROGNÓSTICO DA HIPERTENSÃO E DIABETES: ANÁLISE DE TENDÊNCIA TEMPORAL
Authors: Carvalho Celma de Sousa , Luz Matheus Osvaldo da Silva , Santana Maria Cecília Ferreira dos Santos de , Abreu Laís Lima de Castro , Portela Julianne Viana Freire , Irmão José Jenivaldo de Melo , Melo Andrea Gomes Santana de
Published: June 2024

O objetivo do estudo foi analisar a prevalência da hipertensão arterial e do diabetes mellitus e quantificar o risco e o prognóstico. Pesquisa transversal, descritiva, retrospectiva de 2008 a 2013, de dados coletados no DATASUS/HIPERDIA. Dos 2.601 indivíduos adultos e idosos 77,4% eram hipertensos, 19,1% hipertensos e diabéticos, 2,6% diabéticos do tipo 2 e menos de 1% diabéticos do tipo 1. A prevalência da hipertensão e diabetes e sua concomitância foi maior em mulheres, entre 40 a 59 anos. A frequência do sedentarismo foi de 49,3%, sobrepeso e obesidade 34,3% e 21,7% o tabagismo. Principais complicações doença renal e o acidente vascular encefálico. Aproximadamente 40,6% apresentaram riscos médio e 13,5% risco alto associado a hipertensão, remetendo para um prognóstico desfavorável, de elevada morbimortalidade e incapacidades, sinalizando para ações mais efetivas de saúde e o monitoramento regular deste sistema, como forma de subsidiar as ações e avaliar a resolubilidade do programa.
THE INTERRELATION BETWEEN ESOPHAGITIS AND HYDROGEN SULFIDE: A LITERATURE REVIEW
Authors: Melo Lorrana Mirelley Pereira de , Barroso Rebeca Grangeiro , Sousa Gabriel Paes Landim , Mesquita Raimundo Felipe Carvalho de , Apoliano Karen Cristina Vergara Lima
Published: June 2024

Esophagitis is characterized by irritation and inflammation of the esophagus, caused by several factors, such as gastroesophageal reflux, radiation, infections, medications and eosinophilic esophagitis. Its symptoms include chest pain, odynophagia, dysphagia, nausea, vomiting, throat clearing, heartburn, dry cough and manifestations related to gastroesophageal reflux. And its pathophysiology involves lesions in the esophageal mucosa due to the abnormal and frequent increase in gastric acid. With regard to hydrogen sulfide (H2S), it is a toxic gaseous compound with an odor similar to rotten eggs, it performs essential physiological functions, stabilizing mucus, preventing injuries and strengthening gastrointestinal defense mechanisms by stimulating the secretion of bicarbonate in the duodenum. . The purpose of this article is to analyze the relationship between hydrogen sulfide and esophagitis. Therefore, this integrative review covered original articles in Portuguese and English, published from 2003 to 2022, in the VHL, SciELO and PUBMED databases. Using descriptors such as “esophagitis,” “gastrointestinal,” and “hydrogen sulfide,” the research followed strict inclusion criteria to provide a comprehensive analysis of the relationship between esophagitis, gastrointestinal health, and hydrogen sulfide. As for the results and discussions, they highlight the relationship between H2S and esophagitis, exploring its antioxidant and anti-inflammatory function by protecting cells from oxidative stress by increasing glutathione (GSH) and contributing to quenching reactive oxygen species and promoting the resolution of inflammation. mainly how it interferes with the production of pro-inflammatory cytokines, such as IL-1, IL-2, IL-8 and TNFα, in addition to maintaining or increasing the production of IL-10. Through the results obtained, it can be concluded that esophagitis has an intimate relationship with the modulation of hydrogen sulfide levels in the human body, particularly in the context of the H2S/CSE/HIF-2α axis and that they should be better studied in order to promote the development of H2S-based drugs to treat inflammatory processes, including esophagitis, which have the potential to significantly improve the well-being and quality of life of the population.
Argentina de principios del siglo XX: Tan mencionada y tan desconocida
Authors: Agostino Hilda Noemí
Published: June 2024

No corresponde.
Narrativas de la desigualdad interseccional en la formación docente : maestras que estudian y trabajan
Authors: Solís Ana Magdalena
Published: June 2024

El presente documento da a conocer el análisis interseccional sobre la desigualdad educativa en la formación de educadoras desde teorías feministas latinoamericanistas y negras. Se develan las condiciones en que las docentes cursan la educación superior en dos regiones del país: al sur de la Ciudad de México y Los Altos, en Chiapas. A partir de una perspectiva sociocultural, la narrativa autobiográfica y entrevistas a profundidad, la teoría interseccional generó categorías sobre el entrecruzamiento de dominios de opresión: estructural, disciplinario, hegemónico, interpersonal e intrapersonal. Dichas opresiones generan condiciones específicas para ellas de manera individual pero también colectiva. La línea analítica transversal muestra las tácticas de las docentes para intentar revertir los efectos de la dominación y la desigualdad del sistema raza/género/clase.
Transformações nas formas de controle do trabalho docente no contexto de recrudescimento da nova direita brasileira
Authors: Pinelli Laís Vieira , Yannoulas Silvia Cristina
Published: June 2024

Este artigo tem como objetivo central analisar de qual forma o processo de recrudescimento da nova direita (ND) tem afetado os mecanismos de controle do trabalho docente na educação básica brasileira no período de 2010 a 2022. Para esta pesquisa usou-se como fonte de dados 10 (dez) documentos elaborados por entidades representativas da categoria profissional no Brasil, Associação Nacional pela Formação de Profissionais da Educação (Anfope) e Confederação Nacional dos Trabalhadores em Educação (CNTE); e 8 (oito) entrevistas semiestruturadas aplicadas aos dirigentes dessas entidades. Observou-se a existência de três tendências que relacionam a ND e o controle do trabalho docente no contexto da educação básica brasileira. A partir disso compreendeu-se que há um processo de radicalização dos mecanismos de controle do trabalho docente que afeta as políticas educacionais e se insere também no cotidiano escolar.
Enhancing Students’ intercultural competences through University Academic Training
Authors: Jaafari Mohamed
Published: June 2024

The present paper aims to exhibit the benefit of intercultural educational courses in enhancing University students’ global understanding, tolerance, and inclusive social engagement. The paper displays the academic description, objectives, and implementation of the practices of the intercultural educational courses. The courses are inserted as major modules in undergraduate college studies. The case study analyzed within this experiment relates to the module entitled “Intercultural Communication”, which is part of a program that runs over three years entitled “Applied Languages in Culture” at Cadi Ayyad University, Marrakech, Morocco. The paper analyses quantitatively and qualitatively the attitudes and performances of undergraduate students having trained in how to succeed in communication in extreme intercultural contexts where different religions, traditions, and beliefs are encountered. Homework tasks, tests, exams, cultural exchange, and student-oriented surveys are analyzed and studied. The results produced by the immersion of intercultural courses in the university academic programs reveal that the graduated students succeed not only in being well integrated in their own cultural community but also in raising their chances of being hired in touristic companies where people from different cultures meet and interact. Such is the case of the graduates in intercultural communication taking place in Marrakech, which is a highly renowned touristic city.
Enriching Real-Estate Through Sustainable Public Spaces: The case of Dubai- UAE
Authors: Ezzeddine Issam
Published: June 2024

In the process of the ongoing urban planning strategies for developing smart cities, the concept of urban public square has not yet been given the attention of urbanists and city planners in the Middle East and North Africa (MENA) region. More focus was given by architects and developers on saturating the market with iconic smart buildings rather than developing more livable communities with public spaces and plazas for people to connect. The overall aim of this paper is to highlight the key role that the real state sector can play to foster developing public spaces and squares as an integral part of smart urbanism. The issue of developing urban public squares in Dubai new communities and formulating policies for including such spaces in new districts and cities should be closely examined. The focus should be on enriching the real estate sector by regulating a concept of injecting urban public squares in the new smart and sustainable urbanism in Dubai to perform as a sociocultural entity within the fabric of new communities for the sake of improving social life and developing vibrant environment. With keywords such as smart city, public squares, social, urban design, livability; and sustainability, this write up makes the case of sustainable urbanization.
Artificial Intelligent in UAE (A Study on the Uses and Attitudes of AI in Media Companies)
Authors: Ahmed  , Babiker
Published: June 2024

The purpose of this research is to explore the attitudes of potential usage of Artificial Intelligence (AI) in media companies in the United Arab Emirates. The UAE has given more prominence to AI in recent years especially after launching the UAE Strategy for Artificial Intelligence in 2017 which aims toward achieving the country’s continental vision in making the UAE the pioneering in the field of AI by investing this technology in various sectors and integrate a smart digital system for better problem solving (UAE Government Portal, 2020). In addition, the media sector shall have it’s share of AI investment as H.E. Omar Sultan Al Olama, Minister of State for Artificial Intelligence, indicated that this will benefit the industry by enriching media content and supporting media research (Masterminds, 2019).
ẢNH HƯỞNG CỦA VIÊN NÉN KIỆN LỰC LÊN TÌNH TRẠNG CHUNG VÀ CÁC CHỈ SỐ HUYẾT HỌC TRÊN CHUỘT CỐNG TRẮNG WISTAR
Authors: Mai Phương Thanh , Nguyễn Thị Minh Trang , Phạm Bá Tuyến , Lê Thị Thuý , Trương Thị Huyền , Đoàn Thị Thu Hương , Phạm Thị Vân Anh
Published: June 2024

Mục tiêu: Xác định ảnh hưởng của viên nén Kiện Lực, sản phẩm phối hợp 12 dược liệu, khi uống kéo dài lên tình trạng chung và những thay đổi về huyết học trên động vật thực nghiệm. Đối tượng và phương pháp: Chuột cống Wistar trưởng thành khoẻ mạnh được uống Kiện Lực ở các mức liều 1,8 viên/kg/ngày và 5,4 viên/kg/ngày trong 8 tuần liên tiếp. Tình trạng chung và trọng lượng cơ thể được theo dõi hàng tuần. Các mẫu máu được phân tích về các chỉ số huyết học tại các thời điểm trước uống thuốc, sau 4 tuần và 8 tuần uống thuốc. Kết quả: Số liệu cho thấy viên nén Kiện Lực ở các mức liều nghiên cứu đều không gây những ảnh hưởng xấu tới tình trạng chung và mức gia tăng thể trọng, đồng thời không dẫn đến những thay đổi đáng kể về các chỉ số huyết học (hemoglobin, hồng cầu, hematocrit, thể tích trung bình hồng cầu, bạch cầu, và tiểu cầu) trên chuột cống. Kết luận: Từ các kết quả này có thể đưa ra kết luận về tính an toàn của viên nén Kiện Lực đối với thể trạng chung và chức phận tạo máu.
Secrecy performance analysis of a IRS-assisted underwater optical wireless communication system
Authors: Dang Tien Sy , Nguyen Van Thang , Cao Van Toan  , Dang The Ngoc
Published: June 2024

In response to the dearth of radio frequency (RF) equivalents, there has been a recent surge in interest in optical wireless communication in underwater environments. To ensure a strong line-of-sight (LOS) connection, the intelligent reflecting surface (IRS) is installed to create a virtual LOS. Then, the first part of this study looks into the security of underwater optical wireless communication (UOWC) in relation to a number of real-world phenomena, including oceanic propagation loss, oceanic turbulence, and IRS-induced geometric loss. Then, a wiretap channel with three authorized users - a reputable broadcaster named Alice (the submarine), a law-abiding user named Bob, and an eavesdropper named Eve - is examined over turbulent channels that exhibit the Log-normal distribution. Furthermore, our study derives the closed-form formulas for the secrecy performance measures, secrecy outage probability, and secrecy throughput. Finally, the numerical results show how the impact of oceanic turbulence-induced fading and distance between Bob’s and Eve’s positions on the secrecy system performance.
Gambaran Penggunaan Antihipertensi Pada Pasien BPJS Poliklinik Penyakit Dalam Rumah Sakit X Periode Mei–Juli 2023
Authors: Shas Mutiara Diva Azzahra , Adiana Sylvi , Rochjana Anna Uswatun Hasanah
Published: June 2024

Hipertensi merupakan penyakit kardiovaskular yang paling umum di dunia, khususnya di Indonesia. Penanganan Hipertensi dapat dilakukan dengan terapi farmakologis tunggal maupun kombinasi. Jika pemberian farmakologis tunggal tidak mencapai sasaran tekanan darah yang dianjurkan, maka terapi farmakologis kombinasi baru dapat diberikan. Tujuan dari penelitian ini adalah untuk mengetahui jenis Antihipertensi dan tipe terapi yang paling banyak digunakan di Poliklinik Penyakit Dalam BPJS Rumah Sakit X periode Mei sampai Juli 2023. Penelitian ini dilakukan dengan metode Purposive Sampling. Dari penelitian ini didapatkan resep pasien berdasarkan jenis kelamin perempuan lebih banyak (61,19%) dibanding resep pasien laki-laki (38,81%), berdasarkan kriteria usia terbanyak adalah resep pasien Masa Lansia Akhir (35,82%), berdasarkan penyakit penyerta terbanyak adalah resep pasien Hipertensi dengan penyerta Diabetes (79,10%), berdasarkan Tipe Terapi terbanyak adalah Tipe Terapi Tunggal (50,37%), berdasarkan penggunaan Tipe Terapi Tunggal terbanyak adalah Amlodipine 10 mg (22,96%), dan berdasarkan penggunaan Tipe Terapi Kombinasi terbanyak adalah kombinasi ARB dan CCB (59,40%).
Kata Kunci : Antihipertensi, Pola Penggunaan, Rumah SakitHipertensi merupakan penyakit kardiovaskular yang paling umum di dunia, khususnya di Indonesia. Penanganan Hipertensi dapat dilakukan dengan terapi farmakologis tunggal maupun kombinasi. Jika pemberian farmakologis tunggal tidak mencapai sasaran tekanan darah yang dianjurkan, maka terapi farmakologis kombinasi baru dapat diberikan. Tujuan dari penelitian ini adalah untuk mengetahui jenis Antihipertensi dan tipe terapi yang paling banyak digunakan di Poliklinik Penyakit Dalam BPJS Rumah Sakit X periode Mei sampai Juli 2023. Penelitian ini dilakukan dengan metode Purposive Sampling. Dari penelitian ini didapatkan resep pasien berdasarkan jenis kelamin perempuan lebih banyak (61,19%) dibanding resep pasien laki-laki (38,81%), berdasarkan kriteria usia terbanyak adalah resep pasien Masa Lansia Akhir (35,82%), berdasarkan penyakit penyerta terbanyak adalah resep pasien Hipertensi dengan penyerta Diabetes (79,10%), berdasarkan Tipe Terapi terbanyak adalah Tipe Terapi Tunggal (50,37%), berdasarkan penggunaan Tipe Terapi Tunggal terbanyak adalah Amlodipine 10 mg (22,96%), dan berdasarkan penggunaan Tipe Terapi Kombinasi terbanyak adalah kombinasi ARB dan CCB (59,40%).
Öğretmenlerin Uzman Öğretmenlik Sınavına İlişkin Görüşlerinin İncelenmesi
Authors: Yılmaz Duygu , Sevim Oğuzhan
Published: June 2024

Bu çalışmada 2022 yılında tekrar uygulanmaya başlanan uzman öğretmenlik sınavına ilişkin öğretmen görüşleri incelenmeye çalışılmıştır. Çalışmada nitel araştırma yöntemlerinden olgubilim (fenomonoloji) deseni kullanılmıştır. Olgubilim, mevcut durumu açıklamayı amaçlar. Araştırmanın çalışma grubunu 2022-2023 eğitim öğretim yılında devlet okullarında görev yapmakta olan okul öncesinden 4, ilkokuldan 4, ortaokuldan 4 ve liseden 4 öğretmen olmak üzere toplamda 16 öğretmen oluşturmaktadır. Çalışma grubu amaçlı örnekleme yoluyla belirlenmiştir. Araştırma verileri, araştırmacı tarafından geliştirilen “Uzman Öğretmenlik Sınavına İlişkin Öğretmen Görüşme Formu” ile toplanmıştır ve formda 5 görüşme sorusu yer almaktadır. Veriler Maxquda analiz programı ile içerik analizine tabi tutulmuştur. Programdan çıkan sonuçlar kodlanarak temalar elde edilmiştir. Araştırmada ulaşılan sonuçlara göre öğretmenlerin uzman öğretmenlik sınavına ilişkin görüşlerinin genel olarak olumsuz olduğu, bununla birlikte olumlu görüş bildiren öğretmenlerin de olduğu anlaşılmıştır. Öğretmenlerin en çok olumsuz görüş bildirdiği konuların sınavın eğitim içeriğinin yoğun olması, öğretmenler arasında ayrımcılığa yol açması, mesleki gelişime katkıda bulunmaması, eğitmenlerin tekdüze anlatımı, farklı branşlara ilişkin içerik bilgisinin hem eğitim hem de sınav içeriğine yansıtılmaması ve lisansüstü eğitim muafiyeti olduğu; öğretmenlerin olumlu görüş bildirdiği konuların başında ise eğitimlerle yeni bilgilerin edilmesi ve ünvan değişikliğinin ekonomik olarak gelir artışı sağlaması gibi gerekçelerin geldiği tespit edilmiştir.
Estremoz’un Seramik Figürleri
Authors: Yılmaz Seyhan , Gökoğlu Ayşe
Published: June 2024

Estremoz şehri, Portekiz’in Alentejo bölgesinde konumlanmıştır. Köklü bir seramik kültürüne sahip olan Estremoz’da 13. yüzyıldan itibaren günlük kullanıma yönelik kapkacaklar üretilmiştir. 17. yüzyıldan itibaren ise kapkacakların yanı sıra figürlü objeler de üretilmeye başlanmıştır. Çoğunlukla inançların bir parçası olarak üretilenlerle birlikte günlük yaşama ilişkin sahnelerin de ele alındığı objelerde, kültüre ilişkin bilgiler aktarılır. Bu araştırma Estremoz’un seramik figürleri ile sınırlı tutularak söz konusu seramiklerin geleneksel kültürdeki yeri ve önemi ortaya konulmaya çalışılmıştır. 17. yüzyıldan beri sürdürülen bu köklü geleneğin günümüze kadar yozlaşmadan devam etmiş olması çalışmanın önemini oluşturmaktadır. Çalışmada, Estremoz kil figürlerinin üretim, pişirim ve dekor yöntemleri incelenerek seramik alanına katkı sağlanması amaçlanmıştır. Bu figürler, genel olarak Portekiz halkının yaşamına ve inançlarına ait olmak üzere iki gruba ayrılmaktadır. İlki Hristiyan ikonografisi konulu kompozisyonlar olup çoğunlukla yöre halkının ibadet ritüellerinde kullanılmak üzere üretilmiş olan objelerdir. Bunlar arasında azizlerin tasvirleri, Noel ve Hz. İsa konulu kompozisyonlar bulunmaktadır. Diğeri ise yerel halkın günlük yaşamına ilişkin sahneler olup Alentejo halkından kimseler, çeşitli hayvanlar ve aşkın gözü kördür düşüncesini ya da baharı simgeleyen figürleri içermektedir. Söz konusu gelenek, usta sanatçılar tarafından yeni öğrenenlere bilinçli olarak aktarılmaktadır. Ürünler serbest biçimlendirme ile yapılmakta, bisküvi pişiriminden sonra soğuk boyalarla renklendirilmektedir. Sonuç olarak, ilgili geleneğin objeleri Portekiz ve Estremoz kültürünü yansıtması açısından önemli görülmektedir. Söz konusu sanatın UNESCO’nun Somut Olmayan Kültürel Miras Listesi’ne 2017 yılında “Estremoz Kil Figürleri” olarak eklenmesi ile seramik kültürünün yaygınlaşması ve koruma altına alınması Estremoz’un öne çıkmasını sağlamış, bu durum yörenin ekonomi ve turizm bakımından gelişmesine yardımcı olmuştur.
Characterization Of Shock Buffet On A Supercritical 2D Airfoil In Transonic Flow
Authors: Schauerte C. J. , Schreyer A.-M.
Published: June 2024

The transonic flow over the supercritical OAT15A airfoil is investigated experimentally. Using time-resolved focusing schlieren sequences, we extracted the temporal evolution of the chordwise shock location for a wide range of combinations of Mach number and angle of attack. Based on this data, we identified the conditions of pre-buffet, buffet onset, fully-established buffet, and buffet-offset behavior. Key parameters characterizing most pronounced buffet behavior are presented and quantified in terms of the shock amplitude, its variation over multiple buffet cycles, and the associated frequency of the periodic shock oscillation. Fully-established buffet is identified at a Mach number of 0.72 and angle of attack of 5 deg. It is demonstrated that these operating conditions are characterized by a quasi-sinusoidal shock oscillation at a distinct frequency of 113 Hz, in good agreement with previous studies. This analysis reveals that the harmonic shock oscillation spanning a range of about 16.5% of the airfoil chord is accompanied by a coupled large-scale variation of the global flow topology. Both instantaneous and mean velocity components in the chordwise and vertical directions are discussed for representative phases of the buffet cycle. Instantaneous vector fields of both components provide insight into the flow organization throughout the buffet cycle and allow to identify the streamwise distance traveled by the shock wave within a full cycle. We can thus precisely capture the state of the shock wave and quantify the evolution of the shock-induced separation and the size of the turbulent wake. Severe variations of the flow topology are induced by the large-scale upstream and downstream shock displacement. The results show that incidents of massive flow separation are observed for shock positions being close to the upstream limit, and more general, that the wake influence is more pronounced when induced by an upstream traveling shock wave. Phase-averaged velocity profiles at significant locations along the airfoil suction side complement this analysis. Characteristic sets of velocity profiles are discussed in detail that allow to uniquely describe the development of the flow in each phase of the buffet cycle. Detailed contours and profiles of both velocity and Reynolds shear stress contributions across the wake region highlight the strong downstream influence the shock-induced turbulent wake. Phases of severe flow separation result in reverse flow persisting until the trailing edge which further substantiates the induced momentum deficit.
The Application Of Apertured Filter Method To The Simultaneous Measurement Of Particle-Turbulence Interaction In Dilute Suspension Layer Under Oscillatory Sheet Flows
Authors: Liu C. , Kiger K.
Published: June 2024

One of the challenges confronted in particle image velocimetry (PIV) measurements applied in multi-phase flows is the discrimination of signals from different phases simultaneously registered in each single monochromatic camera. In the current sheet flow study, the sediment particles with a mean diameter of 240 μm are used and the diameter of tracer particles ranges from 25~50 μm. Under conventional imaging, the disparity in particle sizes would inevitably cause highly imbalanced reflected signals from the two phases and the image quality of one of the phases typically must be sacrificed. This manuscript introduces a low-cost and exceedingly convenient solution, named as the apertured filter method, which is characterized by the combined use of fluorescent tracer particles and an optical band pass filter with a round hole drilled in the center, with the hole diameter comparable to the smallest lens aperture size. It is demonstrated that the apertured filter method can provide balanced image intensities among the sediment and tracer particles and preserve the identifiability and separability of both phases. To compute the carrier phase velocity, median filter subtraction (Kiger & Pan, 2000) is applied to the acquired images, followed by direct implementation of stereoscopic PIV (SPIV) process. The cross-talk PIV errors due to the presence of sediment particles are assessed and found to be within 0.3 pixels up to a sediment concentration of C=1%. Some guidance on the fabrication of the apertured filter are also addressed to assist potential users. Enabled by the apertured filter method and the multi-camera single-plane (MCSP) method developed by Liu & Kiger (2022), a whole field, phase-locked time-resolved, particle-resolved and concurrent measurement of both the fluid and the sediment phase within the dilute regime (C≤1%) in a sinusoidal oscillatory sheet flow (period, T=5s, and peak free stream velocity, U_(o,p)=1 m/s) is achieved. Such detailed measurements in sheet flow have never been reported before to the author's best knowledge. The analysis of the acquired data focused upon three phase angles when the external flow is reversing the direction. The phase averaged sediment concentration, mean velocities for each phase and slip velocities between the two phases are evaluated.
PIV investigations of shock-buffet dynamics on a supercritical airfoil with a pitching degree of freedom
Authors: Scharnowski S. , Baur T. , Accorinti A. , Kähler C. J.
Published: June 2024

The interaction between the transonic flow around a spring mounted OAT15A airfoil model and the resulting pitching motion of the model was investigated with the goal of understanding the dynamics of the occurring phenomena. The experiments were performed at free-stream Mach numbers from 0.70 to 0.77 and at a Reynolds number of Rec ≈ 3 × 10^6. The dominant structural frequency of the airfoil’s pitch motion was adjusted to be in the range of the natural buffet frequency of the flow with inhibited pitching motion of the model. The variation of the Mach number allowed for an investigation in the pre-buffet, buffet and post-buffet regime. A periodic pitch motion with an amplitude of the angle of attack of up to ±1.17° was observed for buffeting flow conditions while it was significantly less in pre-buffet and post-buffet conditions. Velocity field measurements by means of high repetition rate particle image velocimetry (PIV) were used to capture the motion of the shock and to determine the state of the boundary layer flow for the different phases of the model motion. For the Mach number range Ma = 0.72 − 0.75 the change of the angle of attack and the shock position correlate strongly with each other. From the measurements, the delay of both quantities during the coupled motion could be determined.
Experimental Investigation Of Shock Induced Panel Flutter With Simultaneous Use Of DIC And PIV
Authors: D’Aguanno A. , Quesada Allerhand P. , Schrijer F.F.J. , van Oudheusden B.W.
Published: June 2024

In this experimental study, both classical and shock induced supersonic panel flutter are investigated at a freestream Mach number of 2, using a combination of planar particle image velocimetry (PIV) and stereographic digital image correlation (DIC) to obtain simultaneous full-field structural displacement and flow velocity measurements. Highspeed cameras are employed to obtain a time-resolved description of the panel motion and of the flow dynamics. In order to prevent interference between the PIV and DIC systems, an optical isolation is implemented using fluorescent paint, dedicated light sources, and camera lens filters. For the shock induced case, the effect of the panel motion on the SWBLI behavior is assessed, by comparing it with the SWBLI on a rigid wall. The results show that panel oscillations occur with an amplitude of ten times the panel thickness. The dominant frequencies observed in the panel oscillation (424 Hz and 1354 Hz) match the main spectral content of the reflected shockwave position. In absence of shock impingement, the oscillation amplitude is on the order of the panel thickness, while the dominant frequency contribution is at 730 Hz. The fluid-structure coupling is studied by identifying the flow regions of maximum correlation between the panel displacement and the flow velocity fluctuations. In presence of shock impingement the results obtained proved that the inviscid flow region upstream of the SWBLI is perfectly in phase with the panel oscillation, while the downstream region has a delay of one quarter of the flutter cycle. Instead, no delay is observed for the configuration in absence of shockwave impingement.
Combined Optical Connectivity And Optical Flow Velocimetry For Measurement Of The Interfacial Velocity Of A Liquid Jet In Gas Cross-Flow
Authors: Wang T. , Hardalupas Y.
Published: June 2024

Liquid jet in crossflow (LJIC) is a process in which a high-speed gas crossflow deforms and shears a continuous liquid flow into tiny droplets. This study quantifies the liquid surface motion of LJIC during the primary breakup process, which has not been fully assessed due to limited optical access close to the nozzle exit. The interfacial velocity of a breaking liquid jet indicates the interaction of the gas and liquid flows and the initial velocity of the stripped droplets. However, the local interfacial liquid velocities have not been measured, since no measurement technique is available, and they have only been estimated from theoretical and computational studies. Optical Connectivity (OC) is a new optical technique, which introduces a laser beam through an atomiser nozzle and relies on total internal reflection at the liquid interface to propagate the laser light inside the continuous liquid. This allows the recording of the instantaneous features of the disintegrating continuous liquid and its interface during the primary atomisation at the near nozzle region through imaging of the emitted fluorescent intensity from the liquid flow. The current research reports time-dependent OC measurements of the temporal evolution of the liquid interface structures along a LJIC. The LJIC breakup behaviour is reported for different atomisation regimes, as determined by non-dimensional parameters. Optical Connectivity is combined with Optical Flow Velocimetry (OFV) to quantify the local interfacial liquid velocities of liquid interface structures of the LJIC for a range of gas Weber numbers between 14.9 - 112.6 and liquid-to-gas momentum ratios between 2.1 - 36.4. The combined OC-OFV measurements report the spatial distribution of interfacial velocities along the surface of LJIC and reveal the physics of the contribution of gaseous shear and liquid jet geometry on the atomisation process.
PENGARUH PRENATAL MASSAGE TERHADAP NYERI PUNGGUNG BAWAH IBU HAMIL TRIMESTER III
Authors: Andriyani Asti , Paryono Paryono
Published: June 2024

Background: Painful back lower mother pregnant is disturbance on bone and muscle part lower back caused _ by activity body that doesn't ergonomic. Prenatal massage on mother pregnant aim as effort for reduce common complaints. Research Objectives: For knowing Influence Prenatal Massage to Decrease Painful Back Lower on Mother Third Trimester Pregnant. Method Research: Study this is study quantitative with design quasi experiment use approach one group pre post test design. Sampling technique in study this is non- probability sampling with method purposive sampling. Sample used _ in study this as many as 50 mothers third trimester pregnant with complaint painful back below that has been Fulfill criteria inclusion in District Dlingo Bantul Yogyakarta. Results show almost whole respondent (96%) mother pregnant trimester III experience painful back lower with scale painful medium. Results Test Wilcoxson showing on p value = .000. Conclusion: There is influence prenatal massage against drop painful back on mother third trimester pregnant in subdistrict Dlingo Bantul Yogyakarta.
Determination of Biological Activity of Some Macro/Micro Algae
Authors: Ceylan Burhan , Sezen Göksal
Published: June 2024

Algae are primary producers in the aquatic environment and from an important part of the food chain. Algae have secondary metabolites with high biological activity, which are especially important in the creation of novel pharmaceutical agents. Main purpose of the research was to ascertain antioxidant, anti-alzheimer, anti-diabetic and tyrosinase inhibitory activities of ethanol, hexane and water extracts of some macro/micro algae. Maceration was used as the sample prepatation method. Antioxidant activity of algea for different radical and compound was assessed. Anti-Alzheimer activity of the obtained calluses were determined using Ellman method which is a spectrophotometric method. Anti-diabetic activities were determined using the α-glucosidase inhibition method. It was discovered that the water extract contained more antioxidant phytochemicals, including phenolic (587.54±2.12 mg PEs/g DW) and flavonoids (618.39±2.47 mg QEs/g DW). This study confirmed that the water extract contained high levels of biological acitivty. This extract may be utilized as a possible source of beneficial nutrients or antioxidants.
Towards Sustainable Urban Transformation: The Role of LEED Certification in Istanbul's Future and Economy
Authors: Toğay Oğuzhan
Published: June 2024

Istanbul, a city with a rich history and vibrant culture, faces the imminent threat of a catastrophic earthquake due to its proximity to the North Anatolian Earthquake Fault. In response, the Turkish government has initiated a sweeping urban transformation led by the Ministry of Environment and Urbanization. This initiative aims to not only rebuild the city but also to enhance its resilience to earthquakes and environmental challenges.
Central to this transformation is the adoption of green building principles, particularly LEED (Leadership in Energy and Environmental Design) certification. LEED provides a comprehensive framework for sustainable building design, construction, and operation, encompassing categories such as Sustainable Sites, Water Efficiency, Energy and Atmosphere, Materials and Resources, Indoor Environmental Quality, Innovation, and Regional Priority.
This paper examines the economic and future considerations of enforcing green certification during Istanbul's urban transformation. Through a detailed analysis of the costs and benefits of LEED certification across different categories, as well as alternative approaches to sustainability, this paper aims to provide a holistic view of the implications for Istanbul's economic landscape and long-term prospects.
By integrating environmental sustainability into its urban renewal efforts, Istanbul has the opportunity to not only mitigate the risks of earthquakes but also to emerge as a model for sustainable, environmentally conscious urban development. This paper seeks to highlight the importance of green certification in shaping Istanbul's urban landscape for generations to come, with a focus on economic considerations, environmental impacts, and broader implications for the city's future.