bluuebunny/crossref_metadata_2025 huggingface dataset:
Aerodynamic Identification and Control Law Design of a Missile Using Machine Learning
Authors: Yan Lang , Chang Xinghua , Wang Nianhua , Zhang Laiping , Liu Wei , Deng Xiaogang
Published: April 2023

The new generation of air vehicle is confronted with a more intricate environment and challenging missions, which puts forward higher requirements for the flight control system. In this study, the aerodynamic identification and control law design based on machine learning for a missile configuration is investigated through numerical simulations. The missile pitch and elevator deflection are realized via the combination of a rigid dynamic grid method and an overlapping grid technology, while the computational fluid dynamics/rigid body dynamics (CFD/RBD) strong coupling method is implemented to simulate the unsteady flows associated with the motion of the missile. Firstly, the aerodynamic data of the missile are gathered through forced pitching motion involving elevator deflection, and an aerodynamic model is constructed using a deep neural network to identify the aerodynamic moment with only a small number of unsteady aerodynamic data. Then, the accuracy and fidelity of the model are checked with the open-loop control law. Afterward, a missile pitch control law is generated through deep reinforcement learning based on the aerodynamic model, which enables the realization of a robust and exact angle-of-attack control process. Finally, the control law is transferred to a numerical environment and numerical virtual flight based on CFD is conducted, which demonstrates that stable control can be maintained even in continuous maneuvering. This study verifies the possibility of applying a deep neural network to air vehicle aerodynamic identification and deep reinforcement learning to a complicated flight control law design with excellent generalization ability. Machine learning is expected to play a significant role in the design and research for the novel generation of air vehicle.
Progressing a Discipline and Profession of Projects
Authors: Lynn Crawford
Published: April 2023

This essay reflects on Peter Morris’s concerns about the the way that project management has been articulated through the advocacy of those institutions and associations that were formed to recognise project management as a distinct area of activity. The essay considers how project management has wrestled with the challenge of being recoginised as both a discipline and a profession and how there has been both progress and concern at how our understanding and practice of project management has evolved. The essay concludes with a recognition that the developments in both the understanding of the discipline of project management and the profession of project management have been in directions that Peter Morris was recommending for many years but, as he also made clear, we cannot rest on our laurels as there is still more to be done.
IMMERSIVE VIRTUAL REALITY MOCKUP VERSUS PHYSICAL MOCKUP: EFFECTS OF IMMERSIVE VIRTUAL ENVIRONMENT ON AECO TEAM DECISION-MAKING PROCESS
Authors: Bita Astaneh Asl  , Carrie Sturts Dossick
Published: April 2023

This paper presents the results from an academic-industry partnership where a team of university researchers and architecture, engineering, and construction industry (AEC) professionals compared a physical mockup to an immersive virtual reality (VR) environment. The goals of this research were to understand how and in what ways VR can replace the use of physical mockups. The study included an experiment where two groups of AEC professionals reviewed a physical mockup and a VR mockup of the same hotel room layout. Group members were asked first to evaluate each mockup from the owner's standpoint as hotel guests and housekeepers, and then suggest design changes based on their professional expertise individually. The groups were then asked to discuss the design together and make a team decision. At the end of the experiment, participants reflected on how the VR mockup did or did not meet their needs in reviewing the room design. The findings from this study show that VR cannot yet fully replace physical mockups due to the user dimension perception, lack of touch sense, unrealistic simulation in VR, and the need for physical samples. However, participants reported VR could be a cost-efficient tool to look at design options and layout in the early design phase and get feedback from the project team and end-users before the construction of the physical mockup to save potential time and money in rework. They also suggested using VR for visualization of the conflicts between different building systems in 3D coordination process
Yakacık (KB-Ankara) Bölgesi Manyezit Cevherleşmesinin Oluşumu ve Kökeni
Authors: EREN KÖROĞLU Habibe , AKISKA Elif , KARAKAŞ Zehra , AKISKA Sinan
Published: April 2023

Türkiye’deki manyezit oluşumları, genellikle sedimanter kayaçlar ve altere ultramafik kayaçların kırık ve çatlakları içerisinde damar ve ağsal (stokvörk) şekilde bulunmaktadır. İzmir-Ankara-Erzincan Sütur Kuşağı içerisindeki Anadolu Bloğu’nun Orta Anadolu olarak adlandırılan kısmında ve Ankara’nın 15 km kuzeybatısında bulunan Yakacık köyü civarında ofiyolitik birimler ile manyezit oluşumları yüzlek vermektedir. Bu çalışmada ofiyolitik birimler ile manyezit oluşumlarının mineraloji ve petrografisi, XRD karakteristikleri, jeokimyasal incelemeleri ve C-O izotop çalışmaları kullanılarak cevherleşmeyi meydana getiren akışkan(lar)ın kökensel incelemesi yapılmıştır. Bölgedeki manyezit cevherleşmesi Yakacık civarında serpantinit, gabro, diyabaz, bazalt, radyolarit ve kireçtaşlarını içeren olistostromal düzeylerden oluşan Kapaklı üyesine ait serpantinitler içerisinde damar-ağsal (stokvörk) ve kuvarslı manyezit damarları şeklindedir. Çalışma alanında incelenen manyezit oluşumlarından ve bu oluşumlar ile birlikteliği düşünülen serpantinitlerden alınan örneklerin mineralojik bileşimlerinin belirlenmesi amacıyla XRD çalışmaları kapsamında tüm kayaç ve kil fraksiyonu analizleri yapılmıştır. Damarsal manyezitler kriptokristalin ve mikro kristalin yapı göstermekte ve manyezitlere kuvars, klorit, dolomit ve serpantin mineralleri eşlik etmektedir. Ağsal (stokvörk) manyezitlerde ise kuvars, serpantin, olivin, kalsit ve dolomit mineral birlikteliği belirlenmiştir. Kil minerallerinin ise klorit, simektit ve kaolinitten oluştuğu tespit edilmiştir. Yapılan mineralojik ve raman spektroskobik çalışmalarda hem damar hem de ağsal (stokvörk) cevherleşmelerde olivin mineralinden kemererit mineraline dönüşümler ile kemererit oluşumları tespit edilmiştir. Manyezit ve ultramafik kayaçlardan alınan örneklerde jeokimyasal analizler yapılmış olup ana oksit iz element ve nadir toprak elementleri incelenmiştir. Genel olarak bakıldığında, jeokimyasal analiz sonuçlarından elde edilen değerler, manyezit oluşumlarının ultramafik kayaçlarla ilişkili olduğuna işaret etmektedir. Manyezit oluşumlarının kökenlerini saptayabilmek için δ13C (VPDB) ve δ18O (VSMOW) duraylı izotop çalışması manyezitten ve kireçtaşından alınan örnekler üzerinde yapılmış olup manyezitlerde δ13C (VPDB) ‰ -3,07 ile 9,67 arasında, δ18O (VSMOW) ‰ 23,05 ile 27,49 arasında, kireçtaşlarında δ13C (VPDB) ‰ 0,20 ile 3,74 arasında, δ18O (VSMOW) ‰ 27,05 ile 28,96 arasında değiştiği görülmüştür. Bölgede, manyezit oluşumlarına ait C ve O için kaynaklık edebilecek en önemli kayaç Jura yaşlı kireçtaşlarıdır. Sonuç olarak, yüzey sularının derinlere hareketi, erken-orta Miyosen’de bölgede gözlenen volkanizmanın ısıtıcı rol üstlenmesi, derinlere inen akışkanların ısınması sonucunda kireçtaşlarının dekarbonasyonu ve kısmen de magmatik bir katkı ile CO2'yı bünyesine alması serpantinleşmiş ultramafik kayaçların kırık-çatlaklarında oluşan manyezitin ana oluşum mekanizmalarıdır.
مراقبة التوسع العمراني في أبها الحضرية باستخدام تقنيتي الاستشعار عن بعد ونظم المعلومات الجغرافية (1984م - 2020م)
Authors: آل عمير سعد عبدالله , الشويش إبراهيم عبيد
Published: April 2023

في ظل تحسن الظروف الاقتصادية والمشاريع التنموية التي شهدتها جميع مناطق المملكة العربية السعودية طوال مدة الدراسة، فقد صاحب ذلك التحسن تزايداً في حجم السكان؛ حتى أصبح يشكل ضغطاً على العمران لاستيعابه، وتتمثل مشكلة الدراسة في التوسع العمراني المتزايد في أبها الحضرية على حساب استخدامات الأرض المتنوعة لاستيعاب الحجم السكاني المتزايد، ولذلك فإن الدراسة تهدف إلى رصد ومراقبة النمو العمراني في مدينة أبها، وتحديد اتجاهه. وقد اعتمدت الدراسة على منهج التحليل المكاني لمراقبة النمو العمراني في أبها الحضرية بين عامي 1984-2020م باستخدام تقنيتي الاستشعار عن بعد (RS) ونظم المعلومات الجغرافية (GIS).حيث تم الحصول على ثلاث مرئيات للأعوام (1984-2002-2020م) من موقع هيئة المساحة الجيولوجية الأمريكية(USGS)، وقد كانت المرئيتين الأولى والثانية من قمر لاندسات (5) بالمستشعر (TM)، والمرئية الثالثة من قمر لاندسات (8) بالمستشعر (OLI)، وقد تمت عمليات التحسين والتصحيح والمعالجة باستخدام برنامج ERDAS IMGINE 2015، وبرنامج (Arc GIS 10.5). وقد توصلت الدراسة إلى أن حجم الكتلة العمرانية في أبها الحضرية قد تضاعف نحو أربعة أضعاف ونصف في المدة (1984-2020م)، حيث تزايدت الكتلة العمرانية من (38.3) كم 2 في عام 1984م إلى (179.6) كم2 في عام 2020م؛ فأصبحت تشكل ما نسبته 19% من مساحتها الكلية البالغة (945.7 كم2)، كما توصلت الدراسة إلى أن اتجاه نمو أبها الحضرية يتم في محور رئيسي شرقي غربي على طريق الملك فهد الرابط بين مدينتي أبها وخميس مشيط وعدة محاور فرعية. وتوصي الدراسة بضرورة إدارة النمو العمراني بالتخطيط المناسب وفق طبيعة المدينة الجغرافية من جهة، ومواكبة احتياجات السكان وتزايدهم من جهة ثانية، مع ضرورة تعاون الجهات التخطيطية مع المختصين والباحثين بالمشاركة في عمليات التخطيط وإدارة النمو العمراني للتغلب على المشكلات.
تقييم سياسة الازالة وإعادة التوطين لسكان المناطق العشوائية غير الامنة بالقاهرة الكبرى في ضوء مبادئ التنمية المستدامة: دراسة حالة حي الاسمرات نموذجا
Authors: حسن محمد صبحي عبدالغني , إبراهيم محمد عبدالباقي , حسن غادة فاروق , خليفة مروة أبو الفتوح
Published: April 2023

تنوعت سياسات تطوير المناطق العشوائية في الدول النامية لمواجهة أزمة الإسكان العشوائي، ويأتي منهج الازالة وإعادة التوطين للسكان كأحد هذه السياسات، وبالرغم من ايجابياته في توفير وحدات سكنية ذات جودة أعلى، وملكية أكثر استقرارا، واستغلال مناطق الاخلاء في مشاريع تنموية، الا ان هناك تجارب عديدة تشير إلى أنها تؤدي إلى مخاطر جسيمة اهمها تدمير البنية الاجتماعية والاقتصادية للمجتمع المحلي بالعشوائيات. وتتمثل المشكلة البحثية في انه بالرغم من أن الحكومات تعتبر إعادة التوطين أمراً صحياً، فإن انتهاجه قد يؤدى إلى الإضرار بالسكان، وذلك بتدمير البنية الاجتماعية والاقتصادية، ما لم يتم اتباع مبادئ التنمية العمرانية المستدامة. وتهدف الورقة البحثية إلى دراسة تطوير العشوائيات في فترة ما بعد الثورة المصرية عام 2011، والتي تعتبر بداية ظهور شركاء جدد للتنمية، من خلال دراسة وتحليل وتقييم أحد المشروعات الحديثة وهو حي الاسمرات بمدينة المقطم بمصر، ومقارنة النتائج بابعاد التنمية العمرانية المستدامة، عن طريق جمع المعلومات، والمقابلات الشخصية للمسؤولين والسكان، والزيارات الميدانية للمشروع، وتحليل هذه البيانات واستنباط مدي تحقق ابعاد التنمية العمرانية المستدامة بالمشروع. وقد توصل البحث الي ان نسبة تحققها تصل الي 66%، وان المشروع اهتم بالبعد العمراني بالدرجة الاولي. ويوصي البحث بضرورة ارساء قواعد المشاركة المجتمعية، والانتقال من النظرية إلى التطبيق بالتوجهات العمرانية الحديثة مثل فكر العمران المرن، وتنفيذ مشروعات تجريبية والاستفادة منها في توفير المسكن للمناطق غير الامنة بشكل خاص ومناطق اسكان محدودي الدخل بشكل عام.
The Experiences of Primary Healthcare Nurses During Covid-19 pandemic: Voices from Nursing Staff at King Fahad Specialist Hospital in Buraydah
Authors: Al-Rasheedi Khaled Falah , Al-Rasheedi Nasser Abdullah , Al-Rasheedi Fayez Shaman , Al-Mansour Muhammad Saleh , Al-Harbi Mufleh Ali
Published: April 2023

With the emergence of coronavirus disease (COVID-19), the world has witnessed unprecedented changes in healthcare provision. With the nurses being the most affected healthcare professionals during the pandemic, the current study aimed to examine the experiences of primary healthcare nurses during covid-19 pandemic at King Fahad Specialist Hospital in Buraydah city in the Kingdom of Saudi Arabia. The population of this research consists of all the nurses at King Fahad Specialist Hospital in Buraydah Saudi Arabia whose number is (128) nurses. The target sample included the whole research population using the complete census method. Using the questionnaire as the main data collection tool, the researchers distributed the questionnaire to the target sample and got only (106) complete responses. The duration of the study took about (1) month starting from 01 October 2022 until 02 November 2022. The findings of the study showed that the nurses experienced major employment changes during the pandemic such as extra work hours, the thought of resigning and moving to other clinical areas, and taking long vacations. Also, the findings showed that the nurses experienced major psychological problems such as anxiety, fatigue, and lack of communication, and support from their co-workers and superiors. It has also been reported that the lack of medical suppliers, lack of personal protective equipment, and the extra volume of infected patients served as major challenges experienced by the nurses during the pandemic. The researchers provided a set of recommendations that focused mainly on the importance of organizational intervention and supporting the nurses both psychologically and professionally with an extended focus on training and qualification for the nurses to deal with such crises.
منحنى الصبيب المصنف أداة لتحديد وتحليل وإدارة الشح المائي في السياق شبه الجاف: نموذج حوض تساوت عالية سد مولاي يوسف (1978-2016)، الأطلس الكبير الأوسط، المغرب
Authors: شاكر محمد , الغاشي محمد , غضبان عمر , واخير حسن
Published: April 2023

ينتمي حوض تساوت (عالية سد مولاي يوسف) إلى المجال الجبلي شبه الجاف، المتميز بتساقطات مطرية محدودة. فضلاً عن قلة الموارد المائية فهي تتسم بكونها غير متكافئة في توزيعها على المستويين المجالي والزمني، ونتيجة لما يشهده العالم من تغيرات مناخية يرافقها قلة في التساقطات المطرية، سواء كان ذلك على الصعيد العالمي أو على صعيد منطقة الدراسة كجزء منه، لا سيما في الآونة الأخيرة، حيث باتت تشهد تزايدا مستمرا في الطلب على الموارد المائية، الأمر الذي دفعنا إلى ضرورة تسليط الضوء على مسألة الشح المائي، للتعرف على أهم الأسباب التي تقف وراء هذا الحدث، بُغية اتخاذ أنجع الحلول والقرارات التي يمكن عن طريقها تحسين تدبير الموارد المائية في هذا الحوض. وللوصول إلى أدق النتائج اعتمدنا على معطيات الصبيب من محطة تمسماط الهيدرومترية والتي تغطي الفترة الممتدة من 1978 إلى 2016. تعتمد المنهجية المعتمدة على تحديد وتحليل عتبات وشدة الشح المائي باعتماد منحنى الصبيب المصنف (DC) والصبيب الأكثر ترددا (الصبيب المنوال). وقد أظهرت النتائج التي تم الحصول عليها أن الصبيب المميز Q75، الذي يوافق الصبيب النوعي 2,3 ل/ث/كلم2، يمثل عتبة ملائمة لبدء فترة الشح المائي بالحوض. وانطلاقا من عتبات الشدة المحددة في أربعة مستويات (عتبات اليقظة والإنذار والأزمة ثم الأزمة القصوى) يمكن اقتراح خطط وإجراءات استباقية لتدبير مستدام ومتكامل للموارد المائية بالحوض المدروس.
استخدام تقنيات التحليل المكاني في دراسة الخصائص الهيدرجومورفولوجية في القطاع الأدنى لوادي الرمة في منطقة القصيم
Authors: العنزي مها عواد , الدغيري أحمد عبدالله
Published: April 2023

تمثل السيول والفيضانات أحد أخطر الكوارث الطبيعية التي تُحدِثها الأودية الجافة وشبه الجافة، وتبرز تأثيراتها حال تم التعدي على حرماتها للأغراض السكنية أو الزراعية أو الخدمية على حد سواء. إن الشبكة النهرية لوادي الرمة الأدنى بمنطقة القصيم وسط المملكة العربية السعودية، إحدى الشبكات الهيدرولوجية القديمة، التي تشكلت معالمها وبانت نتيجة لتأثيرات الأنظمة المناخية خلال الرباعي المتأخر، وقد شهدت تلك الشبكات النهرية حالات لفيضانات عظمى عمت أراضي القصيم خلال فترات الهولوسين الرطبة، وفي الزمن المعيش لاحت في الأفق نماذج لفيضانات تنذر بأزمات بيئية حال لم يتم معالجتها وفهم ماهية بيئتها القديمة. إن تطبيق تقنيات الاستشعار عن بعد كأنموذج الارتفاعات الرقمية (Shuttle Radar Topography Mission) وتقنيات إعادة الإعمار متمثلة في تقنية الكربون((14 المشع, بجانب العمل الميداني المكثف مكّن ذلك من استخلاص الشبكة النهرية للرمة في قطاعه الأدنى، وثبت فيضاناته القديمة، وتقييم خطره على المحلات العمرانية والمراكز السكنية المجاورة, والكشف عن فترات نشاط الوادي وظروف الترسيب التي مر بها، كما استخدمت الدراسة تقنية مؤشر الاحمرار للكشف عن الخصائص اللونية للكثبان الرملية بالمنطقة والتعرف على أشكالها وخصائصها المورفولوجية. قادت نتائج الدراسة إلى أن قطاع وادي الرمة الأدنى شهد فترات نشاط في أوائل الهولوسين قبل (9450)سنة قبل الميلاد, كما قادت نتائج الدراسة إلى ضبط الشبكة الهيدرولوجية للوادي, وإلى تمييز عدد من المواضع والمحلات والأحياء العمرانية التي هي في موضوع خطر من الدرجة الأولى، ويحتم على المشرع إعادة النظر فيها بل عدم تمكين المواطن من التملك والبناء في المناطق البكر التي هي ضمن الامتداد المجالي لفيضان وادي الرمة.
Providing pharmacy services during the coronavirus pandemic in Saudi Arabia (Review)
Authors: Alshammari Saad Khalaf , Alqahtani Ahmed Masoud , Alotaibi Ahmed Mazi , Alzahrani Naif Ahmad , Alzahrani Emad Ahmed , Alkhulaif Susan Abdulqader , Alharbi Waleed Farah , Albraiki Salem Ahmad , Almuteiri Awad Ghalab , Alzahrani Nawaf Ateya
Published: April 2023

On March 2, 2020, the Kingdom of Saudi Arabia confirmed its first case of the emerging coronavirus strain that causes coronavirus disease 2019 (COVID-19). Shortly thereafter, the number of confirmed cases nationwide began to rise. Since the looming outbreak, all healthcare professionals, including pharmacists, began to work at maximum capacity and effort. The Saudi Society of Clinical Pharmacy (SSCP) recognizes the significant impact pharmacists can have during outbreaks. Based on the scientific evidence available during this outbreak, the SSCP set up an expert working group to conceptualize and draft proposed recommendations that highlight the roles and responsibilities of pharmacists during epidemics and pandemics. The SSCP working group made 28 recommendations. In addition to national and institutional guidelines, these recommendations could serve as guidance for affected entities.
قياس فعالية نموذج اكتشاف الرسائل غير المرغوب فيها في خدمة الرسائل القصيرة استناداً على تقنيات التعلم الآلي
Authors: عثمان أحمد حامد , الخليفة محمد بدوي
Published: April 2023

مع زيادة استخدام الهواتف المحمولة، زاد استخدام خدمة الرسائل القصيرة بشكل هائل أدى إلى انخفاض تكلفة الرسائل النصية، بدأ الناس في استخدامها لأغراض ترويجية وأنشطة غير أخلاقية. مما أدى ذلك أيضاً إلى زيادة هائلة في الرسائل العشوائية (Spam) وبالتالي يحصل فقدان البيانات الشخصية والمالية. ولمنع فقدان البيانات من الضروري اكتشاف الرسائل العشوائية في أسرع وقت ممكن. تهدف هذه الورقة إلى تصنيف الرسائل العشوائية ليس فقط بشكل فعال، ولكن أيضًا في وقت قصير ، كما انه يعد هذا البحث قابل للتطبيق في الدول الناطقة باللغة الإنجليزية او يتم ارسال الرسائل النصية فيها للمستخدمين باللغة الإنجليزية حتى يومنا هذا. تم استخدام مجموعة بيانات تحتوي على آلاف الرسائل النصية التي تحتوي على رسائل نصية (Ham) ورسائل نصية عشوائية (Spam). تم استخدام تقنيات معالجة اللغة الطبيعية وخوارزميات تعلم الآلة (مصنف بايز الساذج(Naive Bayes ) وشجرة القرار((Decision Tre والغابة العشوائية Random Forest))) التي يمكننا من خلالها تصنيف نوع الرسالة. بعد تطبيق هذه الخوارزميات، حصلت خوارزمية Random Forest على أفضل دقة 0.99% في 0.15 ثواني.
دراسة تأثير موسمي الصيف والشتاء على بعض الصفات الفسلجية والكيموحيوية للدم في الجمال ذات السنام الواحد في محافظة نينوى
Authors: إبراهيم محمد سالم
Published: April 2023

أجريت هذه الدراسة خلال صيف عام 2018 وشتاء 2019 في منطقة تل عبطة (محافظة نينوى – العراق) على عدد من ذكور وإناث الجمال ذو السنام الواحد لدراسة تأثير موسمي (الصيف والشتاء) وجنس الحيوان (ذكور و إناث) على بعض صفات الدم الفسلجية والكيموحيوية وأشارت الدراسة إن لموسم الصيف تأثير معنوي (P  0.05) في ارتفاع بروتين مصل الدم، كلوبيولين , يوريا , كولسترول, صوديوم , معدل ترسيب كريات الدم الحمر بالمقارنة مع موسم الشتاء. وان لموسم الشتاء تأثير معنوي (P  0.05) في ارتفاع تركيز خضاب وحجم الخلايا المرصوصة وعدد خلايا الدم البيض وتركيز إنزيم ALT في مصل الدم بالمقارنة مع موسم الصيف. وأشارت نتائج دراسة جنس الحيوان (ذكور وإناث) إلى وجود تأثير معنوي (P  0.05) في الصفات المدروسة حيث نلاحظ ارتفاع تركيز كلوكوز الدم وكلوبيولين وبوتاسيوم مصل الدم للذكور بالمقارنة مع الإناث. وارتفاع تركيز بروتين وألبومين ويوريا وتركيز إنزيم ALT وتركيز الكليسيريدات الثلاثية وكولسترول مصل دم الإناث بالمقارنة مع الذكور.
An automatic lip reading for short sentences using deep learning nets
Authors: Rajab Maha Abd , Hashim Kadhim
Published: April 2023

One study whose importance has significantly grown in recent years is lip-reading, particularly with the widespread of using deep learning techniques. Lip reading is essential for speech recognition in noisy environments or for those with hearing impairments. It refers to recognizing spoken sentences using visual information acquired from lip movements. Also, the lip area, especially for males, suffers from several problems, such as the mouth area containing the mustache and beard, which may cover the lip area. This paper proposes an automatic lip-reading system to recognize and classify short English sentences spoken by speakers using deep learning networks. The input video extracts frames and each frame is passed to the Viola-Jones to detect the face area. Then 68 landmarks of the facial area are determined, and the landmarks from 48 to 68 represent the lip area extracted based on building a binary mask. Then, the contrast is enhanced to improve the quality of the lip image by applying contrast adjustment. Finally, sentences are classified using two deep learning models, the first is AlexNet, and the second is VGG-16 Net. The database consists of 39 participants (32 males and 7 females). Each participant repeats the short sentences five times. The outcomes demonstrate the accuracy rate of AlexNet is 90.00%, whereas the accuracy rate for VGG-16 Net is 82.34%. We concluded that AlexNet performs better for classifying short sentences than VGG-16 Net.
Boosting and bagging classification for computer science journal
Authors: Putri Nastiti Susetyo Fanany , Wibawa Aji Prasetya , Ar Rasyid Harits , Nafalski Andrew , Hasyim Ummi Rabaah
Published: April 2023

In recent years, data processing has become an issue across all disciplines. Good data processing can provide decision-making recommendations. Data processing is covered in academic data processing publications, including those in computer science. This topic has grown over the past three years, demonstrating that data processing is expanding and diversifying, and there is a great deal of interest in this area of study. Within the journal, groupings (quartiles) indicate the journal's influence on other similar studies. SCImago provides this category. There are four quartiles, with the highest quartile being 1 and the lowest being 4. There are, however, numerous differences in class quartiles, with different quartile values for the same journal in different disciplines. Therefore, a method of categorization is provided to solve this issue. Classification is a machine-learning technique that groups data based on the supplied label class. Ensemble Boosting and Bagging with Decision Tree (DT) and Gaussian Nave Bayes (GNB) were utilized in this study. Several modifications were made to the ensemble algorithm's depth and estimator settings to examine the influence of adding values on the resultant precision. In the DT algorithm, both variables are altered, whereas, in the GNB algorithm, just the estimator's value is modified. Based on the average value of the accuracy results, it is known that the best algorithm for computer science datasets is GNB Bagging, with values of 68.96%, 70.99%, and 69.05%. Second-place XGBDT has 67.75% accuracy, 67.69% precision, and 67.83 recall. The DT Bagging method placed third with 67.31 percent recall, 68.13 percent precision, and 67.30 percent accuracy. The fourth sequence is the XGBoost GNB approach, which has an accuracy of 67.07%, a precision of 68.85%, and a recall of 67.18%. The Adaboost DT technique ranks in the fifth position with an accuracy of 63.65%, a precision of 64.21 %, and a recall of 63.63 %. Adaboost GNB is the least efficient algorithm for this dataset since it only achieves 43.19 % accuracy, 48.14 % precision, and 43.2% recall. The results are still quite far from the ideal. Hence the proposed method for journal quartile inequality issues is not advised.
Enhanced feature clustering method based on ant colony optimization for feature selection
Authors: Almazini Hassan , Ku-Mahamud Ku Ruhana , Almazini Hassan Fouad abbas
Published: April 2023

The popular modified graph clustering ant colony optimization (ACO) algorithm (MGCACO) performs feature selection (FS) by grouping highly correlated features. However, the MGCACO has problems in local search, thus limiting the search for optimal feature subset. Hence, an enhanced feature clustering with ant colony optimization (ECACO) algorithm is proposed. The improvement constructs an ACO feature clustering method to obtain clusters of highly correlated features. The ACO feature clustering method utilizes the ability of various mechanisms, such as local and global search to provide highly correlated features. The performance of ECACO was evaluated on six benchmark datasets from the University California Irvine (UCI) repository and two deoxyribonucleic acid microarray datasets, and its performance was compared against that of five benchmark metaheuristic algorithms. The classifiers used are random forest, k-nearest neighbors, decision tree, and support vector machine. Experimental results on the UCI dataset show the superior performance of ECACO compared with other algorithms in all classifiers in terms of classification accuracy. Experiments on the microarray datasets, in general, showed that the ECACO algorithm outperforms other algorithms in terms of average classification accuracy. ECACO can be utilized for FS in classification tasks for high-dimensionality datasets in various application domains such as medical diagnosis, biological classification, and health care systems.
Clinical Findings of Sydenham Chorea in Pediatric Patients: A Single-Center Retrospective Study
Authors: Shahri Hassan Mottaghi Mohaddam , Nejad Ehsan Hassan , Toosi Mehran Beiraghi , Malek Abdolreza , Payandeh Asma
Published: April 2023

Purpose: Sydenham chorea is known for its rapid, irregular, and aimless involuntary movements and is considered a benign and self-limiting condition among the major manifestations of rheumatic fever. The current study reviewed the demographic, clinical, and paraclinical findings of pediatric patients with Sydenham chorea.Methods: This cross-sectional study was conducted among 22 patients with Sydenham chorea who were admitted to the pediatric wards of Mashhad Imam Reza and Ghaem Hospitals between 2006 and 2016. Data from these patients’ medical records were extracted, organized using checklist forms, and analyzed.Results: Eight patients were male and 14 were female. The average age was 10.09±3.53 years. In 31.8% of patients, chorea was the only sign of rheumatic fever. Chorea was unilateral in 21.1% of patients. The most common clinical findings were, in descending order, jerky movements, facial grimacing, gait disorders, mental disorders, speech disorders, muscle weakness, and milkmaid’s grip. Cardiac auscultation was normal in 76.2% of patients, while a holosystolic murmur was heard in 23.8%. In laboratory exams, 50% of patients were erythrocyte sedimentation rate (ESR)-positive, 31.2% were C-reactive protein (CRP)-positive, and 53.3% were anti-streptolysin O (ASO)-positive. Echocardiography showed the prevalence of mitral regurgitation (63.6%), aortic regurgitation (45.5%), tricuspid regurgitation (22.7%), pulmonary regurgitation (4.5%), and pericardial effusion (4.5%).Conclusion: This study showed that Sydenham chorea can be the only sign of rheumatic fever. This disease typically occurs in children between the ages of 7 and 12. ESR, CRP, and ASO can be the most effective laboratory tests for diagnosis.
The Effect of Crossword Puzzle Learning Strategies on Fourth Grade Students' Learning Outcomes on Science Learning Contents at Gunung Sari 1 Elementary School Rappocini District Makassar City
Authors: Pratiwi Arindah
Published: April 2023

ABSTRACTThis research is a pre-experimental research which aims to determine whether or not there is an effect of the crossword puzzle learning strategy on the learning outcomes of fourth grade students on science learning content at Gunung Sari 1 elementary school, Rappocini District, Makassar City. The independent variable in this study is the crossword puzzle learning strategy, while the dependent variable is the student learning outcomes in science learning content. The population and sample in this study were fourth grade students of Gunung Sari 1 elementary school, Rappocini District, Makassar City, with a total of 26 students. The research data obtained by giving a test of learning outcomes on the theme of caring for living things, sub-themes of animals and plants in my home environment in the form of pretest and posttest. The data analysis technique used is descriptive statistical analysis and inferential statistical analysis. Based on the results of the descriptive statistical analysis that has been carried out, it can be concluded that the pretest score is in this good category because the mean value of overall learning outcomes is 80.19 while from the posttest it is also in the good category because based on the overall mean value of learning outcomes is 83.27 while The results of inferential statistical analysis after the normality test using the Kolmogorov-Smirnov test with pretest and posttest data are normally distributed and the results of hypothesis testing using the paired sample T-test whose probability value is 0.000 <0.05, which means that Ho is accepted and Ha is rejected because the test criteria are if the probability value greater than the significance level of 0.05, Ho is accepted and Ha is rejected, in other words, the pretest and posttest data have a significant difference. It can be concluded that the crossword puzzle learning strategy has a significant effect on the fourth grade learning outcomes of science learning content at SDN Gunung Sari 1 Rappocini District Makassar City.                                          Keywords: learning strategies, crossword puzzle, learning outcomes
The Effect Of Think Talk Write (TTW) Towards On Ability To Solve Math Story Questions In SD Negeri Tidung Rappocini District Makassar City
Authors: Novianti Erita , Nurhaedah Nurhaedah , Suarlin Suarlin
Published: April 2023

This research aim to find out the effect of Think,Talk,Write (TTW) Learning Model Toward On Ability to Solve Math Story Questions in IV grade at SD Negeri Tidung Kecamatan Rappocini Kota Makassar. The Problem of this research were (1) How was the description of implementation Think,Talk,Write (TTW) Learning Model ? (2) What was the extend of the effect of Think,Talk,Write (TTW) Learning Model Toward On Ability to Solve Math Story Questions?. The purpose of this research were (1) to know the description of implementation Think,Talk,Write (TTW) Learning Model (2) to know the extend of the effect of Think,Talk,Write (TTW) Learning Model Toward On Ability to Solve Math Story Questions. The approach used in this research was quantitative  with the type of experimental  research. The research design used quasi experiment. The research variables consist of independent variables were Think, Talk, Write (TTW) learning models and the dependent variable was the ability to solve Math Story Questions. Data collection techniques using tests, observations and documentation. Data analysis techniques used descriptive statistical analysis and inferential statistical analysis. The results showed that: (1) The implementation of Think, Talk, Write (TTW) models on teacher observation activities took place very effectively and observations of student activities took place effectively. (2) Think, Talk, Write (TTW) learning model significantly influences the ability to solve Math Story Questions for IV grade students of SD Negeri Tidung Rappocini District, Makassar City. The effect can be seen from the differences in posttest results between the control group and the experimental group. The conclusion in this research was the use of Think, Talk, Write (TTW) learning model there is significant influence Toward On Ability to Solve Math Story Questions in Fourth Grade in SD Negeri Tidung Rappocini District, Makassar City
The Effect Of Use Implementation of Cooperatif Learning Type Group Investigation on Student Cooperation Capability in Fourth Grade at SD Negeri Tidung Kecamatan Rappocini Kota Makassar
Authors: Ayuningsi Sri , Nurhaedah Nurhaedah , Sayidiman Sayidiman
Published: April 2023

The problem of this study was the low level of collaboration between students in grade IV of SD Negeri Tidung Kecamatan Rappocini Kota Makassar. The formulation of the problem in this study are: (1) how is the description of cooperative learning model group investigation on the ability of student cooperation? (2) what is the description of students’ collaboration skill? (3) does the use of the cooperative model type group investigation affect the ability of cooperation in the fouth grade students of SD Negeri Tidung Kecamatan Rappocini Kota Makassar?. The purpose of this study are: (1) to describe the application of cooperative learning model group investigation  type to the cooperative ability of students, (2) to describe the cooperations ability of students, (3) to find out the effect of using cooperative investigation group effect on studect collaboration ability class IV SD Negeri Tidung Kecamatan Rappocini Kota Makassar. The approach used in this study is a quantitative approch with the type of Pre Experiment research. This study uses the Intact Group Comparison research design with a sampling technique using purposive sampling teechnique. The samples used in this study were 24 of fourth grade students of SD Negeri Tidung Kecamatan Rappocini Kota Makassar. Data collection techniques in this study used student observation sheets, and documentation. Data analysis techniques used descriptive statistical analysis and inferential statistical analysis. The results of the study show that: (1) The learning process observed with the observation sheet of learning implementation shows the results of improvement in meetings and is categorized as effective. (2) The ability of students to collaborate in the experimental group increases compared to the control group after giving treatment. (3) It have the positive effect of the use of the cooperative model type group investigation influencing the ability of cooperation in the fourth grade students of SD Negeri Tidung Kecamatan Rappocini Kota Makassar.
The Effect Of Application Of Cooperative Learning Model Type Pair Check On Learning Outcomes Student In The Mathematics Lesson Class IV SDN 351 Kawasan Amma Toa Kecamatan Kajang Bulukumba District
Authors: Yustika Yustika , Achmad Widya Karmila Sari , Sahabuddin Erma Suryani
Published: April 2023

This research is a research that uses a quantitative approach with the type of pre-experimental research and uses the form of One Group Pretest Posttest Design. The population in this study were all fourth grade students, totaling 16 students. The sample selection used is saturated sample technique. Data collection techniques in this study were observation sheets and tests. The data analysis technique used is descriptive statistical analysis and inferential statistical analysis using Paired sample T-Test. The results showed that: (1) The learning process by applying the Pair Check type cooperative learning model can be said to be good, (2) student learning outcomes show an increase after applying the Pair Check type cooperative learning model in learning, (3) Pair Check type cooperative learning model has an effect on mathematics learning outcomes. Based on these results, it can be concluded that the Pair Check type of cooperative learning model has an effect on students' mathematics learning outcomes.
The Effect Of Use Animation Media On Learning Outcomes In Science Learning Of The Fourth Grade Students Telkom Makassar
Authors: Ramadhan Gilang , Rohana Rohana , Pada Amir
Published: April 2023

This research is a quantitative approach with the type of pre-experiment research that aims to determine (1) The description of the application of animation media in class IV A SD Telkom Makassar, (2) The description of the learning outcomes of students in class IV A SD Telkom Makassar, and (3) The effect of the application of animation media on the learning outcomes of students in class IV A SD Telkom Makassar. The independent variable in this study is the application of animation media, while the dependent variable is the learning outcomes of students. The population in this study were all grade IV students of SD Telkom Makassar as many as 83 people, while the sample was class IV A as an experimental class with 29 students with purposive sampling technique. The results of the research conducted can be concluded that (1) The description of animation media in class IV A SD Telkom Makassar took place effectively because the percentage category for each meeting increased. (2) The description of the learning outcomes of students in class IV A SD Telkom Makassar has increased. This is evidenced by the posttest scores of students in the high category after treatment while the pretest scores were in the medium category before treatment. (3) Data on the results of the study were obtained by giving a pre test and post test in the form of a multiple choice test. Based on the results of inferential statistical analysis obtained Sig. (2-tailed) from the results of the Paired Sample Test of 0.000, this value is smaller than α = 0.05. It can be concluded that animation media has a significant effect on the learning outcomes of class IV A Telkom Makassar students.
Application Of Process Approach To Improve Students Exposition Writing Skills Class V SDN 2 Tondon, Tondon District Toraja Utara Regency
Authors: Reata Welsy Tiara , Rohana Rohana , AP Nurfaizah
Published: April 2023

The problem in this research is the low skill of writing exposition in class V SDN 2 Tondon, Tondon district Toraja Utara regency. The formulation of the problem in this research is how to apply the process approach to improve students exposition writing skills class V SDN 2 Tondon, Tondon district Toraja Utara regency? The purpose of this research is to describe the application of process approach to improve students’ exposition writing skills class V SDN 2 Tondon, Tondon district Toraja Utara regency. The approach used in implementation of this research is a qualitative approach, the type of this research is Classroom Action Research (CAR). The application of the process approach consist of 5 stages, there are pre-writing, drafting, revising, editing, and the last publishing, these stages are carried out in exposition writing. The research subject are teacher and students class V SDN 2 Tondon, Tondon district Toraja Utara regency with there 22 students, consisting of 12 female students and 10 male students. Teacher activity data and students activities were obtained through observation sheets and the result of students exposition writing skills were obtained from the result of students exposition writing. The result of writing exposition in the first cycle of meetings 1 and 2 not completed but in the second cycle meetings 1 and 2 have increased and in categorized completed. In addition, activities of teacher and students in applying the process approach have also increased, in cycle I and cycle II teacher teaching activities are categorized very good. Students learning activities in cycle I of meeting 1 were categorized poor and meeting 2 categorized good and then increased in cycle II which meeting 1 and meeting 2 were categorized very good. Thus it can be concluded that the application of the process approach can improve exposition writing skills students class V SDN 2 Tondon, Tondon district Toraja Utara regency
The Effect Of Using Word Cards Media On The Beginning Reading Skills Of Second Grade Students At Elementary School 48 Garutu Enrekang Districts
Authors: Anggreini Nining , Rohana Rohana , Pada Amir
Published: April 2023

This research is a quantitative approach with the type of pre-experiment research which aims to determine (1) The description of the use of word card media on the early reading skills of grade II students of SDN 48 Garutu, Enrekang District, (2) The description of the early reading skills of grade II students of SDN 48 Garutu, Enrekang District, and (3) The effect of using word card media on the early reading skills of grade II students of SDN 48 Garutu, Enrekang District. The independent variable in this study is the application of the use of word card media, while the dependent variable is students' early reading skills. The population in this study were all grade II students of SDN 48 Garutu, namely 25 people, as well as the sample, namely all grade II SDN 48 Garutu, namely 25 people with the sampling technique, namely saturated sample. The results of the research conducted can be concluded that (1) The description of the use of word card media on the early reading skills of grade II students of SDN 48 Garutu, Enrekang District took place effectively because the percentage category for each meeting increased. (2) The description of the early reading skills of grade II SDN 48 Garutu Enrekang District has increased. This is evidenced by the posttest scores of students in the high category after being given treatment while the pretest scores were in the medium category before treatment. (3) Data on the results of the study were obtained by giving tests of students' early reading skills in the form of pre tests and post tests. Based on the results of inferential statistical analysis, the Sig. (2-tailed) from the results of the Paired Sample Test of 0.000, this value is smaller than α = 0.05. It can be concluded that the use of word card media has a significant effect on the early reading skills of grade II students of SDN 48 Garutu, Enrekang Regency.
Correlation Of Classroom Management On Learning Motivation In SDN 156 Sub-District Kalaena Luwu Timur
Authors: Ardiansyah Ardiansyah , Achmad Widya Karmilasari , AP Nurfaizah
Published: April 2023

This research examines the following problems: (1) How is the description of the classroom management of SDN 156 students in Kalaena District, East Luwu Regency? How is the learning motivation of SDN 156 students in Kalaena District, East Luwu Regency? (3) Is there a relationship between classroom management and student motivation at SDN 156, Kalaena District, East Luwu Regency? The purpose of this study was to determine: (1) To determine the description of the classroom management of SDN 156 students, Kalaena District, East Luwu Regency; (2) To determine the learning motivation of students of SDN 156, Kalaena District, East Luwu Regency; (3) To find out whether there is a relationship between classroom management and student motivation at SDN 156, Kalaena District, East Luwu Regency. This research approach is quantitative with the type of ex-postfacto research. This research design is correlational. The sample selection in this study using purposive sampling technique. The data collection techniques used were questionnaires and documentation. The normality test used the KolmogrovSmirnov Normality Test with the results of a questionnaire that was normally distributed. Hypothesis testing uses 2 methods, namely the correlation test and the coefficient of determination test. An overview of the class management of SDN 156 students in Kalaena district, East Luwu district, is in the Hight category. As for the description of student learning motivation when it is in the sufficient category too. The conclusion of the study shows that there is a positive and significant relationship between classroom management and student motivation in SDN 156, Kalaena District, East Luwu Regency.
The Effect Of Using Audio Visual Media On The Speaking Skills Of Students At SD Negeri 11 Leang-Leang Bantimurung District Kabupaten Maros
Authors: Nurjayanti Titin , Achmad Widya Karmilasari , AP Nurfaizah
Published: April 2023

This research is a research that uses a quantitative approach with the type ofexperimental research which aims to find out (1) The description of the use of audio-visualmediaonthespeakingskillsofthirdgradestudentsofSDNegeri11Leang-Leang,Bantimurung District, Maros Regency, (2) The description of students' speaking skills afterusing audio-visual media in class III SD Negeri 11 Leang-Leang, Bantimurung District,MarosRegency,(3)Theeffectofthe useofaudio-visual media on the speaking skills of grade III students of SD Negeri 11 Leang-Leang, Bantimurung District, Maros Regency. Theindependent variable in this study is the use of audio-visual media, while the dependentvariable is the result of students' speaking skills. This study uses the type of research OneGroup Pretest-Posttest Design. The population in this study were 23 students of class III SDNegeri 11 Leang-Leang, Bantimurung District, Maros Regency in the academic year 2020-2021. Determination of the sample in this study using non-probability sampling, purposive sampling. Data collection techniques in research are tests, observation and documentation. Data were collected from giving speaking skills test and the analyzed by descriptive statistics and inferential statistics using the paired sample T-Test with the help of SPSS22.0calculations.The results of the research that have been carried out, it can becon cluded that: (1) The description of the use of audio-visual media on students' speaking skills is seen basedon the observation sheet, from the learning stages observed at each meeting the learningprocess seems to increase through the activities of students and teachers, (2) The descriptionof the results of students' speaking skills after using audio-visual media is more improved.Thisis evidenced by the posttest averages core of students in the very good category whilethe pretest scores are in the poor category, (3) There is a significant effect of the use of audio-visual media on students' speaking skills. This is because the probability value oftcount > ttable(55.631> 2.074), with a significance value of 0.000 is smaller than the significance level of0.05 (0.000 <0.05).
The Effect Of Make A Match Type Cooperative Learning Model On Ips Outcomes Of Class Iv Grade Sd Inpres Mangasa I Rappocini District Makassar
Authors: Asis Asriani , Achmad Widya Karmila Sari , Suarlin Suarlin
Published: April 2023

This research 1) how is the description of implementation of match model learning strategies of fourth grade students at SD Inpres Mangasa I kecamatan Rappocini Makassar 2) How is the result of IPS (social science) learning of fourth grade students at SD 3) Is there any influence of match model learning model towards the result of students' learning in IPS subject at SD. The objectives of this researh are: 1) the description of implementation of match model learning strategies of fourth grade students at SD Inpres Mangasa I kecamatan Rappocini Makassar 2) the result of IPS (social science) learning of fourth grade students at SD 3) The influence of make a match learning model towards the result of students' learning in IPS subject at SD. The research approach uses quantitative with quasi eksperiment research type. The independent variable of this research is the influence of make a match learning model while dependent variable is the result of learning at IPS subject in the topic of living environment and types of economy. The population of this research is fourt grade students at SD Inpres Mangasa I Kecamatan Rappocini Makassar, and the sample is students of class IV A which consists of 24 students at control class and students of class IV B which consists of 24 students at experiment class. The design of this research is nonequivalent control group. The technique of sampling of this research is simple random sampling. While the technique of collecting data in this research is by giving test which is divided into pretest and posttest observasion and documentation. The normality test uses kolomogrov smirnov normality test. The hypothetical test uses T test of Independent Sample with the data from control class and experimental class. The result shows that there is significant influence.  The research conclueded that there is a significant influence of make a match learning model toward the result of students’ learning in IPS class fourth at SD Inpres Mangasa I Kecamatan Rappocini Makassar.