bluuebunny/crossref_metadata_2025 huggingface dataset:
فعالية بعض أنواع المبيدات الفطرية لمكافحة مرض البياض الدقيقي Powdery mildew على السمسم (Sesamum indicum L.) تحت ظروف الحقل
Authors: سلام نجيب احمد محسن
Published: March 2022

هدفت هده الدراسة إلى تقييم كفاءة ثلاثة أنواع من المبيدات الكيماوية والطبيعية المصنعة في السيطرة على شدة الإصابة بمرض البياض الدقيقي على السمسم الذي يسببه الفطر Oidium sesames، فقد أظهرت النتائج أن المبيد الكيميائي ديكور تصدر المرتبة الأولى بقدرته على خفض معدل شدة الإصابة بمرض البياض الدقيقي إلى 15% في نهاية الرش في الوقت الذي ارتفعت هذه النسبة 91% في معاملة الشاهد في الموسم الأول 2014م. كما انه تفوق معنوياً على المبيد الطبيعي المصنع نيمسيدين 0.03 ولم تختلف معنويا مع مبيد ثيوفيت 80% (Sulphur) وفي الموسم الثاني 2016 م خفض المبيد ديكور نسبة شدة الإصابة بالمرض إلى 10% في نهاية الرش في الوقت الذي ارتفعت نسبة شدة الإصابة إلى 86% في الشاهد control، كما أنه تفوق معنوياً على المبيد نيمسيدين 0.03، ولم تختلف معنوياً مع المبيد ثيوفنت 80%، كما أعطت النباتات المعاملة بالمبيد ديكور أعلي إنتاج في الموسمين 2014 و2016 م بلغت 789 و 679 كجم/هكتار على التوالي ومتوسط إنتاج الموسمين بلغ 734 كجم/هكتار، في حين أن مبيد نميسيدين المستخلص من بذور شجرة النيم قد أعطى فعالية واضحة في خفض شدة الإصابة ولكن بنسبة اقل من المبيدين السابقين حيث بلغت شدة الإصابة 34% و31% على التوالي وبمتوسط 33%، وبلغت كمية الإنتاج للموسمين 695 و510 كجم/هكتار على التوالي و متوسط إنتاج البذور للموسمين 602.5 كجم/هكتار وبفروق معنوي مقارنة بالشاهد للموسمين حيث بلغت النسبة المئوية لشدة الإصابة في الشاهد 81% و78%، وأعطي كمية إنتاج بلغت 406 و508 كجم/هكتار على التوالي وبمتوسط % شدة إصابة 80% و متوسط إنتاج 457 كجم/هكتار.
رصد حشرة حفار أوراق الطماطم P (M) Tuta absoluta Gelechiidae: Lepidoptera في المصائد الفيرمونية مواعيد ظهورها وكثافتها العددية محافظة لحج الجمهورية اليمنية
Authors: سنيد ناصر خميس ناصر , باعنقود سعيد عبدالله
Published: March 2022

نفذت تجربة حقلية لرصد حشرة حفار أوراق الطماطم Tuta absoluta لدراسة مواعيد ظهورها واختفائها ومدى انتشارها خلال الفترة من أوائل شهر إبريل 2017 وحتى نهاية مارس 2018م واخُتبر موقعان لهذه الدراسة، وأوضحت نتائج المصائد الفيرمونية التي علقت في كلا الموقعين أن الحشرة موجودة خلال العام غير أن أعدادها ترتفع و تنخفض بناء على الظروف البيئية المؤثرة، وقد وصل عدد الحشرات في شهر أبريل في كلا الموقعين إلى 254 و78 حشرة/شهر على التوالي. ثم انخفض عدد الحشرات في الأشهر مايو، يونيو، يوليو، أغسطس وسبتمبر. و ارتفع عدد الحشرات في كلا الموقعين في شهر أكتوبر حتى شهر فبراير حيث بلغ أقصى عدد الحشرات في كلا الموقعين 5652 و 3110 حشرة/شهرعلى التوالي. وانخفضت الحشرات في النشاط قليلا في شهر مارس، حيث بلغ عدد الحشرات في كلا الموقعين 5150 و 2440 حشرة/شهر على التوالي. كان إجمالي عدد الحشرات التي تم رُصدت في الموقع في الموقع الأول (13142 حشرة)، بينما كان إجمالي عدد الحشرات التي رُصدت في الموقع الثاني خلال مدة الدراسة (6462 حشرة).
دراسة تصنيفية لرتبة الباذنجانيات Solanales في دلتا تبن، محافظة لحج، اليمن
Authors: الحوشبي عثمان سعد سعيد , عاطف مازن علوي علي سالم
Published: March 2022

تناولت الدراسة رتبة الباذنجانيات تصنيفياً، في دلتا تبن، محافظة لحج، اليمن في المدة من ديسمبر 2017 إلى نهاية أغسطس 2019م، أسفرت الدراسة عن تسجيل 21 نوعاً نباتياً ضمن 10 أجناس تعود إلى 2 فصائل نباتية من رتبة الباذنجانيات. وأثبتت النتائج أن أكثر العائلات النباتية تنوعاً وتمثيلاً هي الباذنجانية Solanaceae (7 أجناس و12 نوعاً)، إذ شكلت ما نسبته 70% من مجموع الأجناس المسجلة و 57.14% من مجموع الأنواع النباتية المسجلة في منطقة الدراسة. أما أكثر الأجناس تنوعاً في الدلتا هي الـ Solanum و Ipomoea (6 أنواع لكل منهما)، إذ شكلتا حوالي 57.14% من العدد الكلي للأنواع المسجلة في منطقة الدراسة، وأثبتت الدراسة أن الصفات المورفولوجية الخضرية والتكاثرية ذات قيمة عالية في التعريف والتصنيف على مستوى الأنواع والأجناس والعائلات. تضمنت الصفات الخضرية طبيعة نمو النبات وصفات الأوراق، كما تضمنت الدراسة الصفات التكاثرية الخاصة بالنورة، والزهرة، الكأس، والتويج والميسم، ونوع الثمرة، وقطرها، التي كان لها قيمة عالية في التعريف والتصنيف لبعض العائلات والأجناس والأنواع المسجلة في منطقة الدراسة.
On generalized for curvature Tensor \(P_{jkh}^i\) of second order in Finsler space
Authors: Al-Qashbari Adel Mohammed Ali
Published: March 2022

In this present paper, we introduced a Finsler space \(F_n\) which Cartan’s second curvature tensor \(P_{jkh}^i\) satisfies the generalized birecurrence property with respect to Berwald’s connection parameters \(G_{kh}^i\) which given by the condition\(B_n B_m P_{jkh}^i = a_{mn} P_{jkh}^i + b_{mn} ( δ_h^i g_{jk} - δ_k^i g_jh ) - 2 μ_m B_r (δ_h^i C_{jkn} - δ_k^i C_{jhn} ) y^r ,P_jkh^i≠0,\)where \(B_n B_m\) is Berwald’ scovariant differential of second order with respect to \(x^m\) and \(x^n\), successively, \(μ_m\) is non-zero covariant vector field, \(a_{mn}\) and \(b_{mn}\) are non-zero recurrence vectors field of second order, such space is called as a generalized \(BP\)-Birecurrent space and denoted it briefly by \(GBP - BIRF_n\). We have obtained Berwald’ scovariant derivative of second order for the h(v)-torsion tensor \(P_{kh}^i\), P-Ricci tensor \(P_{jk}\) and the curvature vector \(P_k\) for Cartan’s second curvature tensor \(P_{jkh}^i\). Also, we find some theorems of the associate curvature tensor \(P_{ijkh}\) of the (hv)-curvature tensor \(P_{jkh}^i\) and the associate tensor \(P_{jkh}\) of the v(hv)-torsion tensor \(P_{kh}^i\) in this space. We also obtained the necessary and sufficient condition for Cartan’s fourth curvature tensor \(P_{jkh}^i\) to be generalized birecurrent and the necessary and sufficient condition of Berwald’s covariant derivative of second order for the h(v)-torsion tensor \(H_{kh}^i\), the R-Ricci tensor \(R_{jk}\) andthe deviation tensor \(H_h^i\), also the necessary and sufficient condition for the curvature vector \(R_j\) and the deviation tensor \(H_j^i\) to be non-vanishing in this space.
A class of proper and improper partial bilateral generating Functions for some special Polynomials
Authors: Qashash Gamal Ali
Published: March 2022

In this paper, the group theoretic method is used to derive some classes of proper and improper partial bilateral generating functions for certain special polynomial. Some new and known results are obtained as special cases of the main results.
On certain a generalized \(N_{|m}\) ̶ Recurrent Finsler space
Authors: Saleem Abdalstar Ali Mohsen
Published: March 2022

A Finsler space \(F_n\) for which the normal projective curvature tensor \(N_{jkh}^i\) satisfies \(N_{jkh|m}^i = λ_m N_{jkh}^i + μ_m (δ_h^i g_{jk} - δ_k^i g_{jh} ), N_{jkh}^i ≠ 0\), where \(λ_m\) and \(μ_m\) are non-zero covariant vectors field, will be called a generalized \(N_{|m}\) ̶ recurrent space. The curvature vector \(H_k\), the curvature scalarH and Ricci tensor \(N_{jk}\) are non-vanishing. When the generalized \(N_{|m}\) ̶ recurrent space is affinely connected space and under certain conditions, we obtain various results. Also, in generalized \(N_{|m}\) ̶ recurrent space, Weyl's projective curvature tensoris a generalized recurrent tensor.
Cesarean Section in the Delivery and Neonatal Center –Al-Saab-Aden Hospital from 1st Jan-31st Dec 2016
Authors: Al-kaaky Nahla S.
Published: March 2022

A caesarean section (CS) is a life-saving surgical procedure when certain complications arise during pregnancy and labour. However, it is a major surgery and is associated with immediate maternal and perinatal risks and may have implications for future pregnancies as well as long-term effects that are still being investigated.The aim of the study is to estimate the rate of CS to evaluate the most common indications of the operated CS, to estimated, and outline the most common types of CS in the delivery and neonatal center (Al-Saab-Aden Hospital).A retrospective analysis of clinical medical records of woman operated cesarean section and managed in the Department of Obstetrics and Gynecology at the Delivery and Neonatal Center -Al-Saab-Aden Hospital from 1st Jan to 31st  December 2016.Out of 1532 deliveries over the study period from1st of Jan– 31st of Dec 2016, 312 cases had cesarean section representing 20.4% of total deliveries. More than half (52.9%) of cesarean section cases had repeated cesarean section and 77.2% in the Maternal age group 20 – 34 years, Cephalo-pelvic disproportion constitutes 14.7% of registered indications of CS, and the majority of C S due to previous one Scar (28.9%).The cesarean section rate still high with continuous increasing more than the rate stated by WHO. It is obvious that previous scare is the most common indications for CS. The decision to perform a CS must be maternity-centered and not technology-centered,    in turn, lower the total cesarean delivery rate.
Pattern of congenital anomalies among newborns, infants and children in Aden city
Authors: Ba-Saddik Iman Ali , Makki Ahmed Taha , Aklan Inas Mohammed
Published: March 2022

The field of dysmorphology has expanded dramatically as the number of recognizable patterns of malformation has more than tripled during the last 30 years. Major congenital anomalies are currently the leading cause of perinatal, neonatal and infant mortality worldwide, including Yemen. A basic method to investigate congenital anomalies is through medical review records at hospitals and child maternity services. A retrospective analytic study through review of medical records was conducted includeding 1920 patients in all major congenital anomalies with a male to female ratio of 2:1 within age range from 1 day to15 years at Al-Sadaqa and Al-Gamhouria Teaching Hospitals, Aden city, Yemen, during January 2000 to December 2007. Digestive system (DTS) 649 (33.8%) formed the commonest major congenital anomalies, followed by circulatory system (CVS) 416 (21.7%), central nervous system (CNS) 273 (14.2%), urogenital system (UGS) 202 (10.5%) and musculoskeletal system (MSK) 137 (7.1%). Generation of the available information will form the basis to reflect the magnitude of these birth defects, their pattern and any associated risk factors. These results will have important implications in planning appropriate preventive, therapeutic and rehabilitative programs. Future plan would include the implementation of innovative health education strategies and standard screening with sophisticated diagnostic procedures.
Comparison of in vitro dissolution of Bisoprolol Fumarate tablets of five Brands marketed in Aden, Yemen
Authors: Al-Kubati Sana Saleh Fara , Al- Hariri Fadhel Mohammed , Ibraheem Gobran  Kalil
Published: March 2022

Bisoprolol fumarate is a selective β-1 blocker and is useful in the management of cardiovascular diseases. According to Biopharmaceutical Drug Classification System, it is a class I drug, which has high solubility and permeability. In this study, five brands of bisoprolol fumarate 10 mg tablets that are marketed in Aden, Yemen, have been evaluated using dissolution test with the aim to assess bioequivalence of the generic products B, C, D and E with the innovator product A. A high Performance Liquid Chromatographic method was used for the analysis of bisoprolol fumarate in the tablets. The method was validated for the parameters like system suitability, linearity, limit of detection and limit of quantification. The dissolution test was performed according to the United States Pharmacopoeia-30 (USP-30) for the five brands and the obtained dissolution profiles data of the four generic brands were subjected to comparison with the innovator brand using difference factor f1, similarity factor f2 and dissolution efficiency. The results of the method validation revealed its suitability for quantification of bisoprolol in the tested tablets. The five brands contain between 97.52%-102.43% of the labeled amount of bisoprolol fumarate and released more than 80% of drug within 30 minutes, which were within the USP acceptance criterion. The calculated f1, f2 and DE indicated that the generic brands, except brand E, were bioequivalent to the innovator and could be used as generic substitutes for the innovator brand.
استخدام الأسمدة الكيميائية في زراعة القات على الخواص الكيميائية والفيزيائية للتربة في مديرية الحصين- محافظة الضالع- اليمن
Authors: قردش اماني أحمد , باعباد معاذ عبدالمجيد
Published: March 2022

أظهرت التحاليل المختبرية تنوع الترب في منطقة الدراسة بين التربة الــ (سلتية رملية، رملية طينية، رملية سلتية، طينية سلتية وسلتية طينية) وهذا التنوع في تربة أراضي المناطق المدروسة أعطى فرصةً للتعرف على مكونات ترب الأراضي الزراعية التي خضعت للدراسة والتي تعد بيئة لزراعة نبات القات.اظهرت نتائج التحليل الفيزيائي أنَّ التربة المزروعة بالقات في منطقة الدراسة جاءت قلوية لوصول الرقم الهيدروجيني (pH) في جميع العينات المدروسة ما بين (7.18ــ 8.42)، بينما تراوحت نسبة السعة الحقلية في كل العينات مابين (23.33ــ.35.66%) ؛ وذلك لاختلاف نوع الترب من منطقة إلى أخرى، وقد لوحظ بأن الموصلية الكهربائية كانت مرتفعة حيث تراوحت من 218 ــ  442ملليموز/سم  في الأراضي المزروعة بالقات عنها في المجموعات الضابطة نتيجة لارتفاع الملوحة في مياه الري والاستخدام المكثف للأسمدة، كما وجد أن التربة التي أزيل منها القات مازالت الملوحة فيها مرتفعة.اختلفت المناطق المدروسة من حيث احتوائها للعناصر المغذية. إذ تراوح تركيز أيون المغنسيوم ما بين (0.14ــ 0.29) مليمكافئ/100جم  وكان تركيزه متنوعًا من موقع إلى آخر. أما تركيز الكالسيوم في هذه الترب فقد جاء منخفضًا إلى متوسطٍ بشكل عام في جميع المواقع وتراوح مابين (0.25 – 0.12) مليمكافئ/100جم حيث احتوت الترب الطينية على تركيز أعلى للكالسيوم من الترب الرملية. وكان تركيز الـصوديوم متقاربًا في جميع عينات الترب المدروسة وتراوح ما بين (7.18ــ 8.42) مليمكافئ/100جم ماعدا موقعًا واحدًا ارتفع تركيز الصوديوم فيه كثيرًاً، في حين تراوح تركيز البوتاسيوم في جميع العينات ما بين (0.06 ــ0.43) مليمكافئ/100جم .من جهة أخرى فإن تركيز البيكربونات في المواقع المدروسة شهد تبايناً واضحًا إذ تراوح ما بين (0.15 ـ 0.28)مليمكافئ/100جم حيث ارتفع تركيزه في جميع المواقع المزروعة بالقات عن تركيزه في المجموعات الضابطة .بينما تركيز الكلور المذاب في الترب المدروسة ما بين (0.8 ــ 0.19) مليمكافئ/100جم  إذ ارتفع تركيزه في موقعين وتساوى في موقعين. وقد لوحظ تباين تركيز الكبريتات في المواقع المدروسة، حيث تراوح ما بين (3.9ـ 4.47) مليمكافئ/100جم. أما بالنسبة لتركيز النترات في ترب المناطق المدروسة فقد تراوح ما بين (14.33ــ 23.66)PPM.
دراسة تصنيفية لرتبة الشفويات Lamiales في دلتا تبن، محافظة لحج، اليمن
Authors: علي مازن علوي , الجفري عبدالناصر , الحوشبي عثمان سعد
Published: March 2022

تناولت الدراسة رتبة الشفويات تصنيفيًا، في دلتا تبن، محافظة لحج، اليمن، خلال الفترة من ديسمبر 2013 حتى سبتمبر 2019م، أسفرت الدراسة عن تواجد 12 نوعًا نباتيًا ضمن 9 أجناس تعود إلى 6 فصائل نباتية من رتبة الشفويات Lamiaceae. وأثبتت النتائج أن أكثر العائلات النباتية تنوعًا وتمثيلاً هي حنك السبع Scrophulariaceae (2 أجناس و3 أنواع)، إذ شكلت ما نسبته 25% من مجموع الأنواع النباتية المسجلة في منطقة الدراسة. أما أكثر الأجناس تنوعًا في الدلتا هي الـ Ocimum، Ruellia و Schweinfurthii (توعان لكل منهم، إذ شكلت حوالي 50% من العدد الكلي للأنواع المسجلة في منطقة الدراسة. من تحليل شكل الحياة للأنواع المسجلة وجد أن النباتات فوق السطحية Chamaephytes كانت سائدة إذ تمثلت بـ 5 أنواع وشكلت ما نسبته 41.67% من مجموع الأنواع المسجلة في منطقة الدراسة. أثبتت الدراسة أن الصفات المورفولوجية الخضرية والتكاثرية ذات قيمة عالية في التعريف والتصنيف على مستوى الأنواع والأجناس والعائلات.من النتائج المثيرة والجديرة بالاهتمام أن النوع Ruellia simplex المسجل ضمن الأنواع في منطقة الدراسة، يُعد إضافة جديدة إلى الفلورا اليمنية.
دراسة تصنيفية لتحت الفصيلتين البقمية Caesalpinioideae و الطلحية Mimosoideae في مديرية حبيل جبر، محافظة لحج، الجمهورية اليمنية
Authors: الحجيلي عبدالحكيم فضل , الحوشبي عثمان سعد
Published: March 2022

اهتمت هذه الدراسة بإلقاء الضوء على تحت الفصيلتين البقمية والطلحية في مديرية حبيل جبر، محافظة لحج، الجمهورية اليمنية، وذلك خلال الفترة من يناير 2018م حتى أغسطس 2019م. جَمْعُت عينات نباتية ممثلة لكل نوع نباتي ينتمي لتحت العائلتين موجود في منطقة الدراسة. تم مناقشة الصفات ذات الأهمية التصنيفية لتحت العائلتين، كما تم سرد مرادفات الأسماء العلمية والأسماء المحلية لكل نوع نباتي سجل في منطقة الدراسة وانتشاره فيها، وقدم مفتاح اصطناعي للتفرقة بين الأنواع والأجناس، باستعمال أكثر الصفات وضوحاً وأعلاها في القيمة التصنيفية، كذلك تمت مراجعة التسمية العلمية واستحداثها.أسفرت الدراسة عن وجود 16 نوعًا نباتيًا ضمن 6 أجناس. وأثبتت النتائج أن أكثر تحت الفصائل النباتية تنوعًا وتمثيلاً هي تحت الفصيلة الطلحية Mimosoideae (11 نوعاً)، إذ شكلت ما نسبته 68.75% من مجموع الأنواع النباتية المسجلة في منطقة الدراسة. أما أكثر الأجناس تنوعاً في المديرية هي جنس الـ Acacia (8 أنواع) وجنس Senna (4 أنواع)، إذ شكلا حوالي 75% من العدد الكلي للأنواع المسجلة في منطقة الدراسة.بينت الدراسة أن النوع  Acacia hunteriمتوطن في اليمن ولا يوجد خارجها. كما بينت أن الصفات المورفولوجية الخضرية والتكاثرية ذات قيمة عالية في التعريف والتصنيف على مستوى الأنواع والأجناس. إذ لوحظ أن عدد أزواج الوريقات والريشات، وتجمع الأزهار في نورات سنبلية أو هامية (رأس)، ولون الزهرة والقرن المستقيم أو الحلزوني أو المنجلي ذي الزغب المخملي تُعد صفات ذات قيمة عالية في التعريف والتصنيف لأنواع جنس الـ Acacia.
Genetic Algorithm as a Key Parameter of SVM parameter optimization and feature selection for acute Leukemia diagnosis
Authors: Abdullah Najaat Ahmed , Ibrahim Mohammed Abduljalil , Haider Adel Sallam
Published: March 2022

The selection process of the kernel parameters and the relevant features are very crucial to enhance the classification tasks. Thus, in this work, a genetic algorithm that mimics the biological evaluation is used to optimize the support vector machine kernel parameters in order to achieve a high classification accuracy of an acute leukemia diagnosis. The results proved that the combination of genetic algorithm with support vector machine increased the classification accuracy of acute leukemia diagnosis to 99.19%, compared with the value of 89.43% obtained under default support vector machine kernel parameters. This can be directly attributed to the elimination of the irrelevant features and the suitable selection of the kernel parameters. This implies that the genetic algorithm model can be adequately used to solve the optimization problem and features subset selection that gives the optimal accuracy.
An enhanced technique for digital watermarking using multilevel DWT and error correcting codes
Authors: Mohmmad Mohsen Hussein , Ahmed Monia Abdullah , Zain Adnan Abdullah
Published: March 2022

Digital Watermarking has attracted researchers’ attention because of its useful applications and, over the past decades, great efforts have been made to develop digital watermarking techniques and algorithms. Most researches use different transform techniques to enhance the robustness and quality of extracted watermark. This paper presents an enhanced technique for digital image watermarking based on multilevel Discrete Wavelet Transform (DWT) in conjunction with the well-known RS codes over finite fields. To observe and appreciate the significance of using the error correcting codes technique for enhancing the digital watermarking performance against attacks, a series of experiments were conducted. The enhanced methodology, presented and implemented in this research, achieved a very good performance. Regarding the significance of using error correcting codes in conjunction with DWT transform digital image watermarking; it was shown that, in all cases investigated, for all the attacks considered, there was an increase in the robustness of the digital watermark, in terms of the performance measure SSIM values. In some cases, it improves, to almost 27 times, the case without using error correcting codes. Among each class of codes, for all the attacks, Reed-Solomon block codes of length n=255 over the Galois field GF(2^8) with k=135, performs better than all others.
Estimation of limestone deposits calcium carbonate source for industrial applications in some area of Lahej Governorate- Yemen
Authors: Ahmed Naela Mohammed , Saleh Shaif Kasem , Mansha Omer Ali
Published: March 2022

The area of the study is at Lahej Governorate, Yemen, which is about 110 km to the north from Aden.Limestone deposits at the study area belongs to Amran Group of Jurassic Age. Three main formations composed Amran Group; Lower: Shugrah Formation, Middle: Madbi Formation and Upper:Nayfa Formation. Nayfa Formation is characterized by thickly bedded and massive limestones of which having between them  ahigh quality, interestingly pure thick limestone, atdepths from nearly 40 m to75m, which is studied early by the National Company of Cement (NCC), at the areas ofWadi Faltah,Wadi Nakhleen and between Ar-Raqah and Wadi Asaq. These limestones are classified as high and very high pure limestones according to the results of chemical analysis, the spatial contour maps of percentages of CaCO3 and CaO attributes. Limestone is considered as raw materials for proper industries. Accordingly, the limestones could be used for glass manufacture. High and very high limestone is the suitable for Soda ash manufacturing, for iron and steel industry.
Marine ornamental Fishes in the Red Sea: Statusand trade
Authors: Bawazir Gamal Mohammed , Al-Agwan Zaher Ali
Published: March 2022

The ornamental fish trade is rapidly expanding and there is a growing recreational demand for aquarium fishes in international markets. This paper aims to initially assess the status of the marine ornamental fishes and their trade in the Yemeni Red Sea. For this purpose, a field survey was conducted in May-June (2006) in 42 sites in this coast, and information regarding the trade was collected. These sites were located in 40 islands where coral reefs are the most dominant habitats. There were statistically differences in the number of ornamental fishes between and within the sites. Many species of such fishes were targeted for trade in unsustainable manners. This could affect the marine ecosystem in Yemen if such trade continues without unsustainable management.
Generalized Fuzzy q-open sets
Authors: Aqeel Rdhwan Mohammed , Nasser Rashed Alkhadher
Published: March 2022

In this paper, we introduce the concepts of μ-fuzzy q-open sets which is generalization of simply open sets defined by Neubrunnove [9]. We also introduce and investigate, with the help of this new concept, the concepts of qiμ -Fuzzy open sets and qcμ -Fuzzy closed sets. The relations between these concepts are investigated and several examples are presented.
Phase space localization of orthonormal sequences in \(L_α^2 (R_+^d)\)
Authors: Naji Amgad Rashed , Othman Ammer Zain
Published: March 2022

In this article, we prove Malinnikova’s result for Weinstein operator as follows: Let \({(ɸ_n)}_{n=1}^∞\) be an orthonormal basis for \(L_α^2 (R_+^d )\). If the sequences \({(e_n)}_{n=1}^∞⊂R_+^d\) and \({(a_n)}_{n=1}^∞⊂R_+^d\) are bounded, then$${^{sup}_n (‖{|x-e_n | ɸ_n }‖_{L_α^2 (R_+^d ) } ‖{|ξ-a_n | F_W (ɸ_n )}‖_{L_α^2 (R_+^d ) } )<∞}$$
Attitude of dental students toward diabetes counseling, monitoring and screening in Faculty of Dentistry - Aden University
Authors: Al-Sakkaf Mohammed Hassan , Al-Horaibi Reema Khaled
Published: March 2022

Globally, 425 million people have diabetes mellitus (D.M). It is well established that diabetes is associated with oral manifestations which display an increased risk of oral disorders. It is estimated that approximately 5% of all patients seen in dental offices have diabetes. Considering the large number of patients with undiagnosed diabetes who visit the dentists were well-positioned dentists will be able to detect undiagnosed cases early by recognizing oral manifestations and referring suspected to a physician for further diagnostic workup. Dental professionals being a part of health care team members, also share the responsibility of screening and counseling patients for various systemic and infectious diseases.The aim of this study is to examine students' attitudes towards diabetes counseling, monitoring, and screening.A cross-sectional survey for 372 from the first and fifth-year students, who completed the self-administrated questionnaires during Nov 2017, was conducted. Most dental students agree with educating patients about the risk of diabetes to oral and overall health and wellbeing, which consider part of their professional responsibility with an interesting agreement for referring patients with high blood glucose to medical evaluation. Less than half of students believe that dental professional time can be spent on other things rather than obtaining blood glucose for patients and more than half of them consider the use of glucometer in dental practice for screening, monitoring, and reading within the scope of dental practice. Attitudes of students for diabetes education, monitoring, and screening play an important role in future dealing with the patients in real practice.
Electrocardiographic and echocardiographic correlations of dilated cardiomyopathy in Aden Governorate
Authors: Aman Khadija Shafiq , Alsaadi Mohammed Ahmed , Bin Yahiya Mariam Taher
Published: March 2022

Idiopathic dilated cardiomyopathy (IDCM), which represents ventricular chamber enlargement and contractile dysfunction is an often fatal cause of heart failure (HF) in young adults. In Yemen, the incidence and prevalence of dilated cardiomyopathy (DCM) appears to be increasing, whether secondary to improved detection or due to local factors, such as chronic khat use. In this prospective study, we sought to investigate the electrocardiographic and echocardiographic findings in patients with IDCM. A total of 50 patients with IDCM, from three hospitals in Aden were studied. The mean age of patients was 44.6 ±12 years, 39 were males and 11 were females. History of chronic khat use was found in 84% and family history of DCM was found in 32% of the patients. All secondary causes of DCM were excluded. Coronary artery disease (CAD) was excluded by coronary angiography. Electrocardiography (ECG) and two-dimensional (2D) echocardiography were done for all these patients using standard techniques. Diagnosis of DCM was one by echocardiography. Sinus tachycardia and ventricular ectopic beats were common ECG abnormalities, but atrial fibrillation, left bundle branch block, weak R wave progression in the chest leads were found to be associated with advanced left ventricular (LV) systolic dysfunction. There was a markedly dilated LV cavity with mean LV ejection fraction (EF) of 28%. While mitral regurgitation was seen in 40% of the patients, thrombus formation was found in 16% of patients with LVEF of <20%.
Mathematical modeling of the electronic structure of Titanium dioxide \((TiO_2 )_6\) nanoparticles
Authors: Mohammed Tawfik Mahmood
Published: March 2022

The calculation of the number of atoms of the given dimensional nanoparticle, composed of different type atoms has been researched in this work. The calculations have been carried out for nanoparticles of titanium dioxide. Theoretical visual models have been configured, and quantum – mechanical calculations have been carried out for \((TiO_2 )_6\) nanoparticle. The calculations for titanium dioxide nanoparticle have been carried out on the basis of Gaussian atomic orbitals. Besides, Gaussian functions have been used as atomic orbitals. The numerical values of unknown coefficients of the linear combination of atomic orbitals of the atoms of the titanium nanoparticle have been found from the solution of Hartree–Fock–Roothaan (HFR) equations.The values of orbital energies, ionization potential, and the total electronic energy of titanium dioxide nanoparticles have been determined. The calculations show that ,titanium dioxide nanoparticle is tough, electrophile, and stable dielectric, material. The effective charge of atoms have been calculated, and the theoretical visual mode of titanium dioxide nanopartical have been constructed.
فعالية المكافحة الحيوية على نيماتودا تعقد الجذور .Meloidogyne spp على نبات الباذنجان
Authors: علي نسرين عيدروس , السلامي فؤاد احمد
Published: March 2022

نفذت تجربتان للعام 2008, وذلك لدراسة فعالية كل من البكتيريا Bacillus thuringiensis , وخميرة الخبز Sacchvomyces cervisiaci المنشطة بيولوجيا في مكافحة نيماتودا تعقد الجذور   Meloidogyneعلى نباتات الباذنجان Eggplant, اظهرت النتائج أن جميع تراكيز المبيد الحيوي لبكتيريا B. thuringiensis المستخدمة في هذه الدراسة قد خفضت من أعداد العقد الجذرية وأكياس البيض وكثافة النيماتودا معنويًا عند مستوى فعالية 5% مقارنة بالشاهد , ويلاحظ أن نسبة الخفض تزداد زيادة طردية مع زيادة التركيز, حيث اعطى التركيز 15% اعلى نسبة خفض في العقد الجذرية وأكياس البيض بمتوسط 0.0 , 0.5 % واعلى نسبة خفض للديدان في الجذور والتربة بمتوسط تتراوح بين 97.9 , 94.9 % , تلاه التركيز 10 % وكان التركيز 5% أقلها تأثيرًا. كذلك نجد ان بكتيريا B. thuringiensis قد حسنت من نمو النبتات عند التركيز 5 , 10 % مقارنة بالشاهد في حين نجد أن التركيز العالي 15% قد ثبط من نمو النباتات. كذلك اظهرت النتائج أن معاملة الخميرة بكل تراكيزها المختبرة في هذه الدراسة قد تفوقت على معاملة الشاهد. حيث أظهرت كل تراكيز الخميرة فعالية في أعاقت تطور نيماتودا تعقد لجذور وكان أفضلها التركيز 1.5% الذي أعطى نسبة خفض للعقد الجذرية وأكياس البيض بمتوسط 0.5 , 0.0 % ونسبة خفض للديدان في جذور النباتات والتربة المحيطة بها بمتوسط 92.9 , 91.4 %, تلاها التركيز المتوسط 1% ثم التركيز الأقل 0.5 %. ونجد ان معاملة خميرة الخبز قد حسنت من نمو شتلات الباذنجان وتفوقت معنويًا عند مستوى 5% على معاملة الشاهد، وأعطى التركيز 1% أفضل معدلات نمو لشتلات الباذنجان من بين تراكيز الخميرة بمتوسط طول 14.3 سم ووزن خضري بلغ 4.6 جم ووزن جاف 2.7 جم, تلاه التركيز الأقل 0.5%, في حين نلاحظ أن معدلات النمو قد انخفضت بزيادة التركيز إلى 1.5%.
عزل وتشخيص الفطريات المرافقة لبذور السمسم Sesamum indicum )) المزروعة في المختبر– أبين – اليمن
Authors: صالح صالح عثمان محمد , السلامي فؤاد احمد
Published: March 2022

نفدت هذه الدراسة في مختبر النبات كلية التربية ردفان جامعة عدن خلال الفترة من  2018/9/1الى 2019/2/25م .تم عزل الفطريات المرافقة لبذور السمسم Sesamum indicum  الصنف البلدي الأحمر باستخدام طريقة لوحة الأجار Agar plate وطريقة النشاف Blotter paper .ففي الطريقة الأولى  تم عزل خمسة أنواع من الفطريات تتبع أربعة اجناس مختلفة Aspergillus niger ،Aspergillus flavus ، Rhizopus spp،Macrophomina phaseolina  ،Phoma sp ، وكان متوسط التكرار 15، 19، 10،4 ،3 مرة على التوالي . وعندما عقمت البذور باستخدام هيبوكلوريت الصوديوم 2% لمدة 2 دقائق ظهرت نفس الفطريات باستثناء Rhizopus spp لم يظهر وإنما ظهر فطر جديد Alternaria alternate إلا أنه انخفض متوسط التكرار لA. flavus  ،A.alternate ،M.phaseolina ،Phoma spp وكان متوسط التكرار ل 1،0.5 ،2.5  ،0.5  مرة على التوالي . وفي طريقة  ورق النشاف Blotter paper  تم عزل أربعة فطريات تتبع ثلاثة أجناس هي Aspergillus niger  ،Aspergillus flavus  ،Alternaria spp ،Rhizopus sp  وكان التكرار12.5 ،4.25 ،3 ،3 مرة على التوالي . وقد تفوقت طريقة لوحة الاجار Agar plate على الورق النشاف Blottter paper.    وقد أدى تطهير البذور باستخدام هيبوكلوريت الصوديوم 2% لمدة 2 ،5 دقائق إلى خفض النسبة المئوية للبذور الملوثة وزيادة الإنبات مقارنة بالشاهد فقد كانت نسبة التلوث 16.5 ،11 % على التوالي مقارنة بالشاهد الذي وصل إلى 94.5 % وكانت نسبة الإنبات 95 % على التوالي مقارنة بالشاهد التي لم تتجاوز نسبة الإنبات فيه 25 %.
q-Analogue Modified Laguerre Matrix Polynomials of Three Variables
Authors: Alsarahi Fadhl S. N.
Published: March 2022

In this paper, the q-analogue modified Laguerre matrix polynomials of three variables are introduced as finite series and Some properties of these matrix polynomials are obtained.
Applications of Feature Engineering and Logistic Regression to Analyze Microchip Performance
Authors: Ketha Agranya , Goldsztein Guillermo
Published: March 2022

Machine learning is an adaptive concept that has applications in several other industries. Businesses can use it to create real-time and predictive analyses of corporate data to identify consumer trends, calculate product success rates, visualizing short- and long-term business models, and more. This paper takes machine learning algorithms to analyze microchip performance. Beginning with an introduction of fundamental concepts of machine learning — including feature, labels, and classification vs regression models — the paper’s example is introduced with a scatterplot visualization, a definition of the loss function binary cross entropy, and the parameters of the dataset. The third and fourth sections explain the critical function of feature engineering and its utility in refining the decision boundary to best separate the data classes with minimal error. The final section reiterates the main idea that machine learning is ubiquitously applicable and, like the example in this paper, has many cross-industrial functions.
Gambaran Tingkat Psychological Distress Mahasiswa dan Hubungannya dengan Aksesibilitas Pelayanan Konseling Mahasiswa
Authors: Maharani Winda
Published: March 2022

Penelitian ini bertujuan untuk mengetahui perbedaan tingkat psychological distress mahasiswa berdasarkan kebutuhannya akan pelayanan Badan Konseling Mahasiswa (BKM), serta untuk mengetahui alasan-alasan mahasiswa dalam memutuskan untuk menggunakan dan tidak menggunakan layanan Badan Konsultasi Mahasiswa. Subjek dibagi atas 4 kelompok sesuai dengan kebutuhannya akan pelayanan BKM, yaitu (1) kelompok yang membutuhkan pelayanan BKM tahun 2010 dan 2011, (2)  kelompok yang tidak membutuhkan pelayanan BKM tahun 2010 dan 2011, (3) kelompok yang hanya membutuhkan pelayanan BKM di tahun 2010, dan (4) kelompok yang hanya membutuhkan pelayanan BKM di tahun 2011. Penelitian ini menggunakan metode triangulation of study dalam mengumpulkan data-data penelitian. Hasil penelitian menunjukkan bahwa tidak terdapat perbedaan tingkat psychological distress yang signifikan pada keempat kelompok subjek tersebut. Sedangkan alasan mahasiswa untuk menggunakan atau tidak menggunakan pelayanan BKM terkait erat dengan isu aksesibilitas perawatan kesehatan.
Empirical analysis of dynamic load balancing techniques in cloud computing.
Authors: Mahapatra Arpita , Maharana Priyanka
Published: March 2022

Virtualization, dispersed registration, systems administration, programming, and web administrations are all examples of "distributed computing." Customers, datacenters, and scattered servers are just a few of the components that make up a cloud. It includes things like internal failure adaption, high accessibility, flexibility, adaptability, lower client overhead, lower ownership costs, on-demand advantages, and so on. The basis of a feasible load adjusting computation is key to resolving these challenges. CPU load, memory limit, deferral, and system load are all examples of heaps. Burden adjustment is a method for distributing the load across the many hubs of a conveyance framework in order to optimize asset utilization and employment response time while avoiding a situation where some hubs are heavily loaded while others are idle or performing little work. Burden adjustment ensures that at any one time, each processor in the framework or each hub in the system does about the same amount of work. This method may be initiated by the sender, the collector, or the symmetric sort (the blend of sender-started and recipient started types). With some example data center loads, the goal is to create several dynamic load balancing techniques such as Round Robin, Throttled, Equally Spread Current Execution Load, and Shortest Job First algorithms.
Mr. Bayes and the classics: a suggested interpretation
Authors: Diniz Marcio , Bellhouse David R.
Published: March 2022

The main hypothesis about Thomas Bayes’s intentions to write his famous {\it Essay} on probability is that he wanted to refute the arguments of David Hume against the reliability of the occurrence of miracles, published in 1748. In this paper we argue that it was not Bayes’s intention to rebut Hume but that his interest on the ``inverse problem'' came about as result of his study of the second edition of Abraham De Moivre’s book, {\it The Doctrine of Chances}, published in 1738. A possible communication of Bayes’s breakthrough might have annoyed De Moivre, leading to a response written for Bayes in the third edition of De Moivre’s book, published in 1756. Among other points, the response claims that De Moivre was the first to solve the mentioned inverse problem. Under this perspective Richard Price’s letter, written as preface to Bayes’s essay, has a new interpretation, appearing also as a defense of Bayes premiership on a satisfactory or proper solution.
How to efficiently communicate your research results to the community, healthcare workers, and policy makers with a poster
Authors: Feune de Colombi Nicole , Alia Juxhin , Al-Rawni Zainab , Tucker Tyra , Berkley James A , Yoshioka Emily , team CHAIN , Rumi Mercedes
Published: March 2022

When developing a poster, designers and researchers will work together to reach their target audience by communicating an understandable scientific message with an accessible design. This toolkit presents the steps, considerations, and tips to create a research communication poster, based on the experience and lessons learnt following the development of the CHAIN Network research communication posters.
Brands Gamified: concept, applications and challenges
Authors: Malhotra Suzanee
Published: March 2022

Purpose: This article aims to contribute to build an understanding of the new concept of  gamification that has made a buzz for itself recently. Despite being a trendy research topic, it  still lacks sufficient literature studies to understand this concept from all angles. . This article  initially aims to provide an introduction to this trendy concept along with its applications and  examples.Proposed Design/Methodology/Approach: Inspired from Dr. Edward de Bono’s, six thinking  hats this article provides a new and detailed analysis of the gamification concept from different  angles. 12 Qualitative interviews were put to thematic data analysis under Nvivo software for  coming to the research findings that are very interesting and one of its kind. Findings: The findings of this study are very crucial for brands involved and interested in the  business of gamification. From the positive and creative sides that this concept offers, this  paper has also indicated the negatives, facts and figures, feelings aspect as well as the planning  required for this concept. Practical/Theoretical implications: With many new trends emerging in the world of digital  marketing over the past couple of years, gamification has created a buzz for itself. An  innovative yet appealing tool to attract consumers towards brands and keep them emotionally  involved, it has been increasingly used across different types of brands. Originality/value: A novel approach for understanding the brand gamification concept on  6thinking hats approach is presented in the study. This article provides a base for future studies  from an empirical angle in this domain that has not been taken up in this particular study. Limitations: This paper used qualitative study and the quantitative study has not been addressed  in this article.
Investigating The Influence of Social Media Influencers on Consumer Decision Making Process of Plurals and Millennials
Authors: Sidhu Lovedeep Singh , Saini Ramandeep
Published: March 2022

Objective: The study examines how consumer decision making process of millennials and plurals gets impacted due to social media influencers. The impact was measured by using social media influencers as exogenous construct and five stages of consumer decision making process as endogenous construct.Research Methodology: A theoretical model was developed by reviewing earlier literature available on different journals and websites. A sample of total 500 respondents was collected through structured questionnaire by using stratified proportionate sampling whereby count of plurals and millennials was 250 each. The data was examined through Smart PLS 3.0 by performing structure equational modelling. Findings: The results indicated that all the stages of consumer decision making process of millennials and plurals were impacted due to social media influencers. Furthermore, the highest impact was found on need recognition stage (H1), followed by post purchase behaviour (H5), purchase stage (H4), evaluation of alternatives (H3), and search of information (H2).Limitations: This research has few limitations as it was conducted in only northern states of India; however, further research can be conducted in other areas which may yield other productive results. Moreover, only behavioural aspect of consumer attitude was tested, rather cognitive and affective components of consumer behaviour can be considered in future research.Implications: Through this research, marketers can avail the opportunity to understand buying process of two generations: plurals and millennials which would be valuable for firms in strategizing digital marketing plans and policies to target both age groups on social media. This study has illustrated buying process of two generations in order to fulfil the literature gap as there was inadequate literature on plurals and millennials. Hence, both literature gap and originality have been attained and fulfilled.
Role of internal brand communities in building a strong
Authors: Prashar Atul , Maity Moutusy
Published: March 2022

Internal brand Management is a highly researched field with leadership,effective internal and external brand communication and brand-centered human resource management as its proven antecedents (Chang, Chiang, & Han, 2012), and brand commitment, brand knowledge and brand citizenship behaviours as its key consequences (Burmann & Zeplin, 2005; Löhndorf & Diamantopoulos, 2014). The scant research literature pertaining to the role of internal brand communities in the above equation is highly dispersed (P. R. Devasagayam, Buff, Aurand, Judson, & Judson, 2010). In that direction, the study reviews the literature on internal brand management, brand community dynamics and social identity theory and proposes a conceptual model to show the way employee participation in intra-organisational brand communities impacts their brand commitment. This conceptual model gives an innovative yet organic route of building strong corporate brands within the organisations.
Study of Hazard of COVID-19
Authors: Narendra Mutalik  , Mrs. Vidya  , Natasha Saldanha
Published: March 2022

COVID-19 is a type of coronavirus disease belonging to the family Coronaviridae. The disease is thought to originate from bats and was spread to people through an unknown medium in Wuhan, China. Ideally, the condition is spread by inhalation or close interaction with infected droplets that have an incubation period between two and fourteen days. Today, there are thousands of infections and deaths that have been caused by the disease. Moreover, the symptoms of the disease include fever, cough, sneezing, sore throat, difficulty breathing, and tiredness. Additionally, the diagnosis of the disease starts by gathering samples of the upper and lower respiratory tracts of the infected person. Also, chest X-rays and CT scan are used in the diagnosis stage. Basically, there is no precise treatment for the ailment, and this calls for the need to prevent the disease from spreading. Notable prevention strategies are isolation of the infected persons, proper ventilation, hand hygiene and use of personal protective equipment. Therefore, this paper provides in-depth information on COVID-19 as it discusses the disease epidemiology, transmission, clinical features, diagnosis, treatment and prevention..
Image Enhancement Techniques Using CNN
Authors: Archana J C  , Chandana S  , Hymha N Raj  , Latika Kavoor  , Shruthi Shetty J
Published: March 2022

The most significant area in imaging study and processing is image processing technique. The major goal is to improve quality images artificially through other means. The images that are obtained at times through certain mediums may end up distorted making the image unclear. One option to enhance the image quality is to change camera lens, which is costly. Thus, an alternative is required. A conventional neural network (CNN) may give priority to distinct aspects in an image and differentiate between them. A clear review of the literature on a few CNN-based picture enhancing techniques is carried out
Vulnerabilities in Wireless Sensor Networks: Attacks and Countermeasures
Authors: Prajna SP  , Pranav Kalidas  , Pratheeka Karkera  , Pratheeksha Rao  , Reena Lobo
Published: March 2022

In wireless sensor networks, we look at routing security. There have been numerous sensor network routing protocols proposed, but none of them have been developed with security in mind. We propose security goals for sensor network routing, show how ad-hoc and peer-to-peer network attacks can be adapted into powerful sensor network attacks, introduce two new types of sensor network attacks––sinkholes and HELLO floods––and assess the security of all major sensor network routing protocols. We detail all of them as targets for debilitating attacks and offer countermeasures and design considerations. This is the first study of secure routing in sensor networks of its kind.
Advances in prehospital hemorrhagic shock management since Paris’ terrorist attacks in 2015: A before-and-after retrospective study
Authors: Thiery, MD Christophe , Jost, MD Daniel , Klein, MD Isabelle , Dufour-Gaume, MD Frédérique , Stibbe, MD Olivier , Prunet, MD, PhD Bertrand
Published: March 2022

Background: In France, in 2015, prehospital emergency doctors were faced with civilian casualties in hemorrhagic shock resulting from terrorist attacks with automatic rifle fire and explosive weapons. The present study aimed to evaluate the impact of these attacks on the advanced life support (ALS) team’s practices and equipment and on physician training in the prehospital management of traumatic hemorrhagic shock.Methods: This before-and-after multicenter study evaluated professional practices based on a questionnaire sent to emergency department heads and medical practitioners in 370 ALS teams in metropolitan France.Results: We analyzed 672 responses from 209 (56.5 percent) ALS teams in 91 of 95 emergency medical services (EMS) headquarters. Of these 91, 73 (80.2 percent) had a protocol in use for managing traumatic hemorrhagic shock after the attacks, compared with 45 (49.5 percent) who had protocols in use before the attacks (p 0.001). Ultrasound equipment was available in 49 (53.8 percent) of the EMS headquarters after the attacks, compared to 39 (42.9 percent) before (p 0.001). Limb tourniquets were available in 90 (98.9 percent) EMS headquarters after the attacks, versus 27 (29.7 percent) before (p 0.001). Tranexamic acid was available in 88 (96.7 percent) EMS headquarters after the attacks, versus 71 (78 percent) before (p 0.001). During the post-attack period, training in war medicine did not affect individual practices, neither for using the shock index or the Focused Assessment with Sonography for Trauma (FAST) nor the tourniquet. However, this training was associated with more frequent use of hemostatic dressings (p = 0.002).Conclusion: Following the attacks in Paris and Nice, ALS teams received additional equipment and training to prepare for future mass causality events.