bluuebunny/crossref_metadata_2025_split huggingface dataset:
أسس وخصائص ومداخل التعليم الإلكتروني التشاركي ومعايير تطويرة " تصور مقترح "
Authors: طارق عبدالرؤف محمد عامر  
Published: August 2022

يعدا لتعلم الإلكتروني التشاركي بأنه :" استراتيجية أو مدخل للتعلم يقــوم على العمل فى مجموعات لتحقيق هدف واحد فلكل فرد دور محدد فعمل كل فرد يكمل عمل بقية المجموعة وبالتالى لا يتبادلون الأدوار فى أدائهم للمهام التشاركية يحدث التعلم لجزء واحد بالممارسة الفعلية أما بقية الأجزاء فيكون ناتج للتعلم من الأقران ويجتمع أفراد المجموعة للتشاور والمناقشة حول الأفكار والمعلومات المكتسبة للإتصال والتواصل بين أعضاء المجموعة التشاركية أو بينهم وبين الباحث سواء فى لقاء متزامنة أو غير متزامنه وبالتالى فهو متمركز حول المتعلم ويؤكد على تفاعل ( متعلم - متعلم )

مشكلة الدراسة :

تصاغ مشكلة الدراسة فى التساؤلات التالية :
س1: ما هى أسس ومبادئ التعلم الإلكتروني التشاركي ؟
س2: ما هى سمات وخصائص التعلم الإلكتروني التشاركي ؟
س3: ما هى المداخل والنظريات التى يقوم عليها التعلم الإلكتروني التشاركي ؟
س4: ما هى أنواع وبيئات التعلم الإلكتروني التشاركي ؟
س5: ما هى أنماط التفاعل فى بيئة التعلم الإلكتروني التشاركي ؟
س6: ما هى العلاقة بين استراتيجيات التعلم الإلكتروني وبيئات التعلم الإلكتروني التشاركي ؟
س7 : ما التصور المقترح لمعاييرتطوير بيئات التعلم الإلكتروني التشاركي ؟

هدف الدراسة :

تهدف الدراسة الحالية التعرف على :

أسس ومبادئ التعلم الإلكتروني التشاركي .
سمات وخصائص التعلم الإلكتروني التشاركي .
المداخل والنظريات التى يقوم عليها التعلم الإلكتروني التشاركي .
أنواع وبيئات التعلم الإلكتروني التشاركي.
أنماط التفاعل فى بيئة التعلم الإلكتروني التشاركي .
العلاقة بين استراتيجيات التعلم الإلكتروني وبيئات التعلم الإلكتروني التشاركي.
بناء تصور مقترح لمعاييرتطوير بيئات التعلم الإلكتروني التشاركي .
التجربة البرلمانية في الجمهورية العربية اليمنية (1969- 1975) دراسة تاريخية
Authors: عبدالله فارع العزعزي  
Published: August 2022

شهدت الجمهورية العربية اليمنية في المدة (1969- 1975م) تغيرات مهمة في شتى جوانب الحياة السياسية, والاقتصادية, والاجتماعية, والثقافية والفكرية, والعسكرية والأمنية, والإدارية, والتشريعية.
وقد حظيت تلك الجوانب باهتمام الباحثين اليمنيين والعرب والأجانب في جميع التخصصات العلمية, تمثلت القيام بإنجاز العديد من رسائل الماجستير, وأطروحات الدكتوراه, وتأليف الكتب, والأبحاث العلمية, وكتب المذكرات, وكانت التشريعات اليمنية وتطورها وكذلك الانتخابات البرلمانية موضع اهتمام المختصين في القانون, والسياسة, والاجتماع, والإدارة, في اليمن.
وتأتي أهمية البحث من أجل تسليط الضوء على التجربة البرلمانية في الجمهورية العربية اليمنية في المدة ما بين (1969- 1975م) كونها لم تدرس تاريخياً في بحث مستقل.
وعليه فإن البحث سيركز على هذه التجربة في حدودها الزمنية المذكورة, وحدودها المكانية المتمثلة بالجمهورية العربية اليمنية. متبعاً المنهج التاريخي التحليلي, والمقارن حسب مقتضيات البحث نفسه. وقد تم تقسيم البحث إلى مقدمة وأربعة مباحث وخاتمة.
الدور المصري في دعم الثورة اليمنية (26 سبتمبر 1962م) خلال الفترة 26 سبتمبر 1962 – 5 نوفمبر 1967م
Authors: أمة الجليل ناصر شاني  
Published: August 2022

يتناول هذا البحث موضوع الدور المصري في تأييد الثورة اليمنية أمام هجمات الملكيين المستمرة في كثير من مناطق البلاد، كما يتناول الانشقاق داخل صفوف الجمهوريين أنفسهم التي عمقت التناقضات ليس بين الجانب الملكي والجمهوري فحسب بل وبين الجمهوريين أنفسهم، والتي كان سببها استمرار الحرب بين الجمهوريين والقوى المضادة للثورة، وعلى الرغم من ذلك فقد استطاع الجمهوريون الدفاع عن الثورة والجمهورية أمام هجمات الملكيين المستمرة الذين استغلوا انسحاب القوات المصرية من اليمن أثر هزيمة يونيو 1967م، وأخذوا يجددون عزمهم القضاء على الثورة وعلى النظام الجمهوري، غير أن الجمهوريين استطاعوا الصمود أمام الملكيين وصدهم عن تحقيق ما كانوا يطمحون إليه من الاستيلاء على صنعاء، تجلي ذلك في حرب السبعين يوماً.
يهود المغرب الأقصى والجزائر خلال القرنيين 15 و 17 م، دراسة مقارنة
Authors: خالد مجوط  
Published: August 2022

يهدف هذا البحث إلى دراسة يهود المغرب الأقصى* والجزائر، في الفترة الممتدة ما بين القرنيين 15 و 17م، وهي دراسة مقارنة نسعى من خلالها إلى رصد وضعية اليهود بالبلدين بعد سقوط غرناطة(1492)، حيث توزعوا في غالب الأحيان على المناطق الساحلية، كما أفرزت هذه الهجرة صراعا بين (الميغوراشيم) (اللقب الذي أطلق على اليهود الذين طردوا من إسبانيا والبرتغال سنتي 1492 م-1497م) و(الطشابيم) (أوالبلديين، وهم السكان الذين استوطنوا المغرب الأقصى و الأوسط بعدما تعرضوا للاضطهاد الروماني وقمع القوط لهم)، لتحتوي الأولى الثانية في كلا البلدين.
*للتوسع أكثر حول مفهوم المغرب الأقصى، انظر كتاب" مجتمع المغرب الأقصى من منتصف القرن الرابع الهجري إلى منتصف القرن العاشر ميلادي" مولاي هاشم العلوي، الجزء الأول، 1995، ص55.
واكب الهجرة اليهودية إلى المغرب والجزائر بروز ما يعرف بالغزو الأيبيري على سواحل المغرب الكبير، وكان لليهود مواقف متباينة من الوجود البرتغالي والإسباني، حيث آثر (الميغوراشيم) التعامل مع البرتغاليين نظير توفير الأمن لهم، مع تقديم خبراتهم في مختلف الميادين للبرتغاليين، في حين كان موقف (الطشابيم) هو الرفض المطلق لهذا الوجود، في حين واصل الإسبان اضطهادهم لليهود المهجرين بسواحل الجزائر، وهو ما دفعهم لطلب حماية العثمانيين الذين لم يترددوا في تلبية الدعوة قصد بسط نفوذهم عليها.
أمام حالة عدم الاستقرار السياسي، وفي ظل توالي سنوات الجفاف، وغياب الأمن؛ التأم اليهود في إطار ما يعرف بالحركة السبتائية، وهي حركة صوفية ظهرت بأزمير التركية، لتشكل الغطاء الروحي الذي يخفف من وطأة الاضطهاد السياسي والاجتماعي وقسوة الطبيعة.
الكلمات المفتاحية: المغرب- الجزائر- اليهود- الميغوراشيم- الطشابيم- المد الأيبيري-السبتائية.
مقصد حفظ الجماعة في العبادات دراسة مقاصدية تطبيقية
Authors: إسماعيل بن يحيى بن إسماعيل التركي  
Published: August 2022

يهدف هذا البحث إلى بيان مقصد من مقاصد الشريعة، وهو مقصد حفظ الجماعة، وذلك من خلال النظر في تحقيق العبادات لهذا المقصد، ورعاية الشارع لهذا المقصد من خلال النظر في العبادات، ومسائلها المتنوعة، وقد جاء هذا البحث في مقدمة، وتمهيد وأربعة مطالب، وخاتمة.
فأما المقدمة فذكرت فيها أهمية الموضوع وأسباب اختياره، ومنهج البحث، وخطته، وأما التمهيد فبينت فيه المراد بحفظ الجماعة، وأما المطالب الأربعة ففي مشروعية الجماعة للصلوات، ثم في مشروعية صلاة الخوف، ثم في مشروعية الزكاة، ثم في مشروعية الحج، وفي الخاتمة ذكرت أهم نتائج البحث.
Abstract
This research aims to state a purpose of sharia, the purpose of preserving the community, by considering the realization of worship for this purpose, and taking care of the sharia for this purpose by considering worship, and its various issues, which came in the introduction, preparation and four demands, and a conclusion.
The introduction mentioned the importance of the subject and the reasons for its choice, the method of research and its plan, and the preface to the meaning of preserving the community, and The four demands are the legitimacy of prayer in a group, then in the legitimacy of the prayer of fear, then in the legitimacy of zakat, then in the legitimacy of hajj, and in the end the most important results of the research are mentioned.
Solving the Heat and Wave Equations Using the Double Aboodh-Summed Transform
Authors: Ali Al-Ati & Yasmin Ouideen  
Published: August 2022

We combine the Aboodh transform and Sumudu transform to give another double transform which is called the double Aboodh-Sumudu trans-form. This interesting transform reduces a linear partial differential equation with unknown function of two independent variables to an algebraic equation, which can then be solved by the formal rules of algebra. Also the original differential equation can then be solved by applying the inverse double Aboodh-Sumudu transform.

Key words and phrases. Double Aboodh-Sumudu, Aboodh transform, Sumudu transform
Improvements of Organic Photodetectors for VLC Using a New Active Layer, Focal Lens, and a Transimpedance Amplifier
Authors: Corral Pablo , Rodriguez-Mas Fernando , De Scals Guillermo , Valiente David , Ferrer Juan Carlos , Fernandez de Avila Susana 
Published: August 2022

Beyond 5G networks, and for short distance but high-speed communication systems, there is an incipient growing interest in visible light communications (VLC). Furthermore, it is an interesting alternative within the framework of the Internet of Things (IoT). However, there is a problem on the part of the receiver in these systems, motivated by the non-existence of photovoltaic elements used particularly for this purpose. Because of their simplicity and small investment, organic-type photodetectors have a high capacity for use in VLC systems. With a structure of polymers represented by an organic photodetector fabricated with poly (3-hexylthiophene) (P3HT) and a bulk heterojunction active layer of phenyl-C61-butyric acid methyl ester (PCBM) and commercial LEDs, we show our system in this paper. The main novelty of this work is in reception. With different upgrade using a new active layer or adding a focal lens or inserting a transimpedance amplifier, we have achieved improved performance results related to voltage and distance, with an increase of more than 40 %, and Bit Error Rate (BER) by modifying the active layer concentration with respect to results obtained in a former work. Also, we have tested the use of a transimpedance amplifier to obtain the best results in distances of 12 cm to 20 cm and a focal lens with the same objective of improving the BER in critical environments, where the Signal-to-Noise Ratio (SNR) is close to zero. To conclude, these modifications show that it is possible to increase the main parameters of our system to be useful in VLC systems.
Co-expression network analysis of genes and networks associated with wheat pistillody
Authors: Chen Zhenyong , Liao Mingli , Yang Zaijun , Chen Weiying , Wei Shuhong , Zou Jian , Peng Zhengsong 
Published: August 2022

Crop male sterility has great value in theoretical research and breeding application. HTS-1, whose stamens transformed into pistils or pistil-like structures, is an important male sterility material selecting from Chinese Spring three-pistil (CSTP) wheat. However the molecular mechanism of pistillody development in HTS-1 remains a mystery. RNA-seq data of 11 wheat tissues were obtained from the National Center for Biotechnology Information (NCBI), including the stamens of CSTP and the pistils and pistillodic stamen of HTS-1. The Salmon program was utilized to quantify the gene expression levels of the 11 wheat tissues; and gene quantification results were normalized by transcripts per million (TPM). In total, 58,576 genes were used to construct block-wise network by co-expression networks analysis (WGCNA) R package. We obtained all of modules significantly associated with the 11 wheat tissues. AgriGO V2.0 was used to do Gene Ontology (GO) enrichment analysis; and genes and transcription factors (TFs) in these significant modules about wheat pistillody development were identified from GO enrichment results. Basic local alignment search tool (BLAST) was used to align HTS-1 proteins with the published pistillody-related proteins and TFs. Genes about wheat pistillody development were analyzed and validated by qRT-PCR. The MEturquoise, MEsaddlebrown, MEplum, MEcoral1, MElightsteelblue1, and MEdarkslateblue modules were significantly corelated to pistillodic stamen (correlation p < 0.05). Moreover, 206 genes related to carpel development (GO:0048440) or gynoecium development (GO:0048467) were identified only in the MEturquoise module by Gene Ontology (GO) analysis, and 42 of 206 genes were hub genes in MEturquoise module. qRT-PCR results showed that 38 of the 42 hub genes had highly expressed in pistils and pistillodic stamens than in stamens. A total of 15 pistillody development-related proteins were validated by BLAST. Transcription factors (TFs) were also analyzed in the MEturquoise module, and 618 TFs were identified. In total, 56 TFs from 11 families were considered to regulate the development of pistillodic stamen. The co-expression network showed that six of HB and three of BES1 genes were identified in 42 hub genes. This indicated that TFs played important roles in wheat pistillody development. In addition, there were 11 of ethylene-related genes connected with TFs or hub genes, suggesting the important roles of ethylene-related genes in pistillody development. These results provide important insights into the molecular interactions underlying pistillody development.
NOVOS PARÂMETROS DE ANÁLISE DA RELAÇÃO EDUCAÇÃO E PREPARAÇÃO PARA O TRABALHO: desafios atuais para o sistema de Ensino Superior
Authors: Couto Maria 
Published: August 2022

O texto discute os novos desafios que são colocados para os sistemas educacionais, especificamente para o Ensino Superior diante das mudanças sociais, econômicas, políticas e tecnológicas contemporâneas. Depois de fazer um balanço das reflexões de alguns autores sobre essas mudanças e dos seus impactos sobre a centralidade do trabalho no mundo de hoje, expõe alguns pontos em torno dos novos requisitos da qualificação profissional, ao tempo em que analisa a recente discussão sobre os novos conceitos de qualificação e competência que estão sendo trabalhados por outros autores no campo da Sociologia e da Economia. Ao final, tece algumas considerações sobre as recentes reformas da política educacional brasileira frente a esses novos requisitos. PALAVRAS-CHAVES: Mudanças sociais, Ensino Superior, trabalho, qualificação/ competência, políticas públicas. NEW PARAMETERS FOR ANALYZING THE RELATIONSHIP BETWEEN EDUCATION AND PREPARATION FOR WORK: present challenges for the academic teaching system The text discusses the new challenges that the educational systems have to face, especially the academic teaching as far as social, economic, political and technologic contemporaneous changes are concerned. After taking into consideration the thoughts expressed by some authors on these changes and their impacts on the centrality of the work in the present world, it presents some points of view that focus on the new requirements of the vocational qualification. Meanwhile it analyses the recent discussion on new qualification and competence; other authors in Sociology and Economics fields are dealing with those concepts. To sum up, it makes some considerations on the recent reforms of the Brazilian education policy to cope with these new requirements. KEYWORDS: Social changes, academic teaching, work, qualification, competence, public policies. Publicação Online do Caderno CRH: http://www.cadernocrh.ufba.br
AS NOVAS FORMAS DE ACUMULAÇÃO DE CAPITAL E AS FORMAS CONTEMPORÂNEAS DO ESTRANHAMENTO (ALIENAÇÃO)
Authors: Antunes Ricardo 
Published: August 2022

O artigo discute as mutações em curso no mundo do trabalho como expressão do processo de reorganização do capital, em resposta à crise desencadeada a partir dos anos 70, através da acumulação flexível, que tem, na implementação do padrão toyotista de organização do trabalho, a forma mais avançada de intensificação do trabalho, combinando as formas relativa e absoluta da extração da mais valia. Analisa as principais práticas do toyotismo nos vários setores de atividade e em vários países, demonstrando como esse processo de intensifica;'ao do trabalho é responsável por novas formas contemporâneas de estranhamento. PALAVRAS-CHAVES: Trabalho, toyotismo, alienação, estranhamento. THE NEW FORMS OF CAPITAL ACCUMULATION AND THE CONTEMPORANEOUS FORMS OF ESTRANGED LABOR (ALIENARTION) Ricardo Antunes The paper discusses the mutations that the world of labor has gone through as an expression of the capital reorganization process, in a response to the crisis triggered by the flexible accumulation from the 70s on, and which relied on toyotism, the most advenced intensification of labor, as a pattern of labor organization. This pattern combines the relative and absolut forms of exploitation of the labor theory of value. The paper analyses the main Toyotism practices in several sectors of the activityand in different countries, demonstrating how this labor intensification process is responsible for the new contemporaneous forms of estranged labor. KEY WORDS: Labor, Toyotism, alienation, estranged labor. Publicação Online do Caderno CRH: http://www.cadernocrh.ufba.br
Early Mortality in Type A Acute Aortic Dissection
Authors: Harris Kevin M. , Nienaber Christoph A. , Peterson Mark D. , Woznicki Elise M. , Braverman Alan C. , Trimarchi Santi , Myrmel Truls , Pyeritz Reed , Hutchison Stuart , Strauss Craig , Ehrlich Marek P. , Gleason Thomas G. , Korach Amit , Montgomery Daniel G. , Isselbacher Eric M. , Eagle Kim A. 
Published: August 2022

ImportanceEarly data revealed a mortality rate of 1% to 2% per hour for type A acute aortic dissection (TAAAD) during the initial 48 hours. Despite advances in diagnostic testing and treatment, this mortality rate continues to be cited because of a lack of contemporary data characterizing early mortality and the effect of timely surgery.ObjectiveTo examine early mortality rates for patients with TAAAD in the contemporary era.Design, Setting, and ParticipantsThis cohort study examined data for patients with TAAAD in the International Registry of Acute Aortic Dissection between 1996 and 2018. Patients were grouped according to the mode of their intended treatment, surgical or medical.ExposureSurgical treatment.Main Outcomes and MeasuresMortality was assessed in the initial 48 hours after hospital arrival using Kaplan-Meier curves. In-hospital complications were also evaluated.ResultsA total of 5611 patients with TAAAD were identified based on intended treatment: 5131 (91.4%) in the surgical group (3442 [67.1%] male; mean [SD] age, 60.4 [14.1] years) and 480 (8.6%) in the medical group (480 [52.5%] male; mean [SD] age, 70.9 [14.7] years). Reasons for medical management included advanced age (n = 141), comorbidities (n = 281), and patient preference (n = 81). Over the first 48 hours, the mortality for all patients in the study was 5.8%. Among patients who were medically managed, mortality was 0.5% per hour (23.7% at 48 hours). For those whose intended treatment was surgical, 48-hour mortality was 4.4%. In the surgical group, 51 patients (1%) died before the operation.Conclusions and RelevanceIn this study, the overall mortality rate for TAAAD was 5.8% at 48 hours. For patients in the medical group, TAAAD had a mortality rate of 0.5% per hour (23.7% at 48 hours). However, among those in the surgical group, 48-hour mortality decreased to 4.4%.
Clinical and Pathological Characteristics and Outcomes Among Patients With Subcutaneous Panniculitis-like T-Cell Lymphoma and Related Adipotropic Lymphoproliferative Disorders
Authors: Guitart Joan , Mangold Aaron R. , Martinez-Escala Maria Estela , Walker Christina J. , Comfere Nneka I. , Pulitzer Mellissa , Rieger Kerri E. , Torres-Cabala Carlos A. , Pincus Laura B. , Kumar Erica S. , Wang Erica Bo Kyung , Park Katherine E. , Espinosa Maria L. , Duvic Madeleine , Kim Youn H. , Horwitz Steven 
Published: August 2022

ImportanceThere is a knowledge gap about subcutaneous panniculitis-like T-cell lymphoma (SPTCL) owing to its rarity and diagnostic difficulty, resulting in an absence of well-documented large case series published to date.ObjectiveTo generate consensus knowledge by a joint multi-institutional review of SPTCL and related conditions.Design, Setting, and ParticipantsThis retrospective clinical and pathological review included cases initially diagnosed as SPTCL at 6 large US academic centers. All cases were reviewed by a group of pathologists, dermatologists, and oncologists with expertise in cutaneous lymphomas. Through a process of group consensus applying defined clinical and pathological diagnostic criteria, the cohort was classified as (1) SPTCL or (2) adipotropic lymphoproliferative disorder (ALPD) for similar cases with incomplete histopathological criteria for SPTCL designation.ExposuresCases of SPTCL diagnosed between 1998 and 2018.Main Outcomes and MeasuresThe main outcome was disease presentation and evolution, including response to therapy, disease progression, and development of hemophagocytic lymphohistiocytosis.ResultsThe cohort of 95 patients (median [range] age, 38 [2-81] years; female-to-male ratio, 2.7) included 75 cases of SPTCL and 20 cases of ALPD. The clinical presentation was similar for both groups with multiple (61 of 72 [85%]) or single (11 of 72 [15%]) tender nodules mostly involving extremities, occasionally resulting in lipoatrophy. Hemophagocytic lymphohistiocytosis (HLH) was only observed in SPTCL cases. With a mean follow-up of 56 months, 60 of 90 patients (67%) achieved complete remission with a median (range) of 3 (1-7) cumulative therapies. Relapse was common. None of the patients died of disease progression or HLH. Two patients with ALPD eventually progressed to SPTCL without associated systemic symptoms or HLH.Conclusions and RelevanceIn this case series of patients initially diagnosed as having SPTCL, results showed no evidence of systemic tumoral progression beyond the adipose tissue. The SPTCL experience in this study confirmed an indolent course and favorable response to a variety of treatments ranging from immune modulation to chemotherapy followed by hematopoietic stem cell transplantation. Morbidity was primarily associated with HLH.
Identifying the Signatures of Intermolecular Interactions in Blends of PM6 with Y6 and N4 Using Absorption Spectroscopy
Authors: Kroh Daniel , Eller Fabian , Schötz Konstantin , Wedler Stefan , Perdigón‐Toro Lorena , Freychet Guillaume , Wei Qingya , Dörr Maximilian , Jones David , Zou Yingping , Herzig Eva M. , Neher Dieter , Köhler Anna 
Published: August 2022

AbstractIn organic solar cells, the resulting device efficiency depends strongly on the local morphology and intermolecular interactions of the blend film. Optical spectroscopy was used to identify the spectral signatures of interacting chromophores in blend films of the donor polymer PM6 with two state‐of‐the‐art nonfullerene acceptors, Y6 and N4, which differ merely in the branching point of the side chain. From temperature‐dependent absorption and luminescence spectroscopy in solution, it is inferred that both acceptor materials form two types of aggregates that differ in their interaction energy. Y6 forms an aggregate with a predominant J‐type character in solution, while for N4 molecules the interaction is predominantly in a H‐like manner in solution and freshly spin‐cast film, yet the molecules reorient with respect to each other with time or thermal annealing to adopt a more J‐type interaction. The different aggregation behavior of the acceptor materials is also reflected in the blend films and accounts for the different solar cell efficiencies reported with the two blends.
Multi‐Electrode Printed Bioelectronic Patches for Long‐Term Electrophysiological Monitoring
Authors: Reis Carneiro Manuel , Majidi Carmel , Tavakoli Mahmoud 
Published: August 2022

AbstractA novel architecture of materials and fabrication techniques is proposed that serves as a universal method for implementation of thin‐film biostickers for high resolution electrophysiological monitoring. Unlike the existing wearable patches, the presented solution can be worn for several days, and is not affected by daily routines such as physical exercise or taking bath. A printable biphasic liquid metal silver composite is used, both as the electrical interconnects and the electrodes. This allows combining advantages of dry electrodes, i.e., printability and non‐smearing behavior, with benefits of wet electrodes, i.e., high‐quality signal. A human subject study showed that these biphasic printed electrodes benefit from a lower electrode‐skin impedance compared to clinical grade Ag/AgCl electrodes. Digital printing enables autonomous fabrication of biostickers that are taylor‐made for each user and each application. A universal miniaturized electronic system for biopotential acquisition and wireless communication is develpoed, and demonstrated multiple biopotential acquisition cases, including electrocardiography, electroencephalography, electromyography, and electrooculography.