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Evaluation De La Diversité Agro-morphologique Des Accessions De Maïs (zea Mays L.) Originaires Des Oasis Sahariennes
No full textIn order to evaluate the native Algerian mays germplasm, 60 accessions originating from the South of Algeria were characterized using 17 quantitative descriptors. The analysis of variance showed a significant difference (p ˂ 0.05) between the accessions for eight quantitative characters which explained most of the observed variability. The comparison of means by the LSD (Least significant difference) test at 5% level of significance allowed us to separate the 60 accessions into several homogeneous groups. The principal component analysis (PCA) allowed us to know the relationship between the descriptors considered and to bring out those which discriminate our accessions of maize. The PCA partitioned the Saharan accessions, regardless of their geographic origin, into three contrasting groups identical to those identified following an ascending hierarchical classification (CAH). The characterization of the entire collection revealed a great phenotypic variability within the accessions and showed those that have traits of agronomic interest. The earliest accessions, adapted to short rainy seasons, would provide breeders with a simple tool to escape water stress. Likewise, genotypes characterized by short ASI (Anthesis Silking Interval) can also be used for drought tolerance
Vers Un Système Peer-to-peer D’aide à La Décision En Périodes D’épidémies. Covid-19 Comme Exemple.
No full textLors d’une épidémie/pandémie causée par un virus inconnu comme le SRAS-CoV-2, agent responsable du COVID-19, les praticiens de la santé ne peuvent pas prédire le comportement du virus et donc l’évolution de la maladie. Ils ne peuvent pas aussi prédire la réaction des patients face aux différents traitements. Dans ce papier on propose une architecture d’un système distribué de prédiction de l’évolution de la maladie et des réactions des patients pour les traitements, et ce en exploitant les données temps réel de patients atteint du même virus de partout dans le monde. Le système utilise une classification des patients basées sur les données géographiques et les questions PICO. Il s’inspire des systèmes de téléchargement peer-to-peer pour le partage des informations et utilise un modèle sémantique pour la sauvegarde et la comparaison des questions cliniques. Le système propose aussi de générer des auto-tests personnalisés qu’on peut mettre à la disposition de la population pour diminuer la panique causée par l’épidémie. Un exemple illustratif utilise les données d’un patient fictif atteint du COVID-19
تأثير القيادة الرقمية علي الإبداع التنظيمي دراسة تطبيقية على كليات عُنيزة في المملكة العربية السعودية: "The Impact of Digital Leadership on Organizational Creativity: An Applied Study on Onaizah Colleges in the Kingdom of Saudi Arabia"
No full textهدفت الدراسة إلى قياس تأثير القيادة الرقمية بأبعادها المختلفة على تعزيز الإبداع التنظيمي في كليات عنيزة في المملكة العربية السعودية، مستخدمةً عينة مكونة من 100 فردًا من أعضاء هيئة التدريس والعاملين في الكليات. اعتمدت الدراسة على المنهج الوصفي التحليلي، واستخدمت استبانة لجمع البيانات التي تم تحليلها باستخدام برنامج SPSS، متضمنةً أساليب إحصائية مثل المتوسطات الحسابية، الانحرافات المعيارية، معاملات الارتباط، وتحليل الانحدار المتعدد. أظهرت النتائج وجود علاقة إيجابية ودالة إحصائيًا بين القيادة الرقمية والإبداع التنظيمي، وكذلك تبين أن القيادة الرقمية تفسر 58% من التباين في الإبداع التنظيمي،وأوصت الدراسة بضرورة تعزيز التدريب على القيادة الرقمية وتبني ثقافة التعلم الرقمي داخل الكليات، مع دعم المواطنة الرقمية وتنمية مهارات استخدام التكنولوجيا الحديثة من أجل تحسين الإبداع التنظيمي.The study aimed to measure the impact of digital leadership and its various dimensions on enhancing organizational creativity at the Colleges of Unaizah in the Kingdom of Saudi Arabia. The study used a sample of 100 individuals, including faculty members and staff from the colleges. A descriptive-analytical approach was adopted, and a questionnaire was used to collect data, which was analyzed using SPSS software. The statistical methods applied included mean calculations, standard deviations, correlation coefficients, and multiple regression analysis. The results showed a positive and statistically significant relationship between digital leadership and organizational creativity, with digital leadership explaining 58% of the variance in organizational creativity. The study recommended the need to enhance digital leadership training, adopt a culture of digital learning within the colleges, and support digital citizenship while developing skills in using modern technology to improve organizational creativity
أثر التَّعَلُّم التَّنْظيميِّ فِي تَعزِيز الابْتكار التِّكْنولوجيِّ دِراسة تطْبيقيَّة على كُلِّيَّات عُنيْزَة فِي الممْلكة العربيَّة السُّعوديَّة: The Impact of Organizational Learning on Enhancing Technological Innovation An Applied Study on Onaizah Colleges in the Kingdom of Saudi Arabia
No full textهدفت الدراسة إلى تحليل أثر التعلم التنظيمي بأبعاده المختلفة على تعزيز الابتكار التكنولوجي في كليات عنيزة في المملكة العربية السعودية، مستخدمةً عينة مكونة من 105 فردًا من أعضاء هيئة التدريس والعاملين،واعتمدت الدراسة على المنهج الوصفي التحليلي، واستخدمت استبانة لجمع البيانات التي تم تحليلها باستخدام برنامج SPSS، متضمنةً أساليب إحصائية مثل المتوسطات الحسابية، الانحرافات المعيارية، معاملات الارتباط، وتحليل الانحدار البسيط والمتعدد،وأظهرت النتائج وجود علاقة إيجابية ودالة إحصائيًا بين التعلم التنظيمي والابتكار التكنولوجي، حيث تبين أن التعلم التنظيمي يفسر 64% من التباين في الابتكار التكنولوجي ، وكانت القيادة الداعمة للتعلم من أكثر الأبعاد تأثيرًا، وأوصت الدراسة بضرورة تبني استراتيجيات تشجع على تبادل المعرفة والتعاون بين الموظفين، وتعزيز شراكات الصناعة والجامعة، وتوفير بيئة تنظيمية محفزة على الحوار والاستفسار وتطوير نظم معلومات فعّالة، لتحقيق رؤية جماعية مشتركة تدعم الابتكار والتطوير المستمر. لدعم رؤية المملكة 2030م .The study aimed to analyze the impact of organizational learning in its various dimensions on enhancing technological innovation atOnaizah College in the Kingdom of Saudi Arabia, using a sample of 105 faculty members and staff. The study adopted a descriptive-analytical approach and utilized a questionnaire to collect data, which were analyzed using SPSS software, incorporating statistical methods such as arithmetic means, standard deviations, correlation coefficients, and simple and multiple regression analyses. The results showed a positive and statistically significant relationship between organizational learning and technological innovation, with organizational learning explaining 64% of the variance in technological innovation, and supportive leadership for learning being one of the most influential dimensions. The study recommended adopting strategies that encourage knowledge exchange and collaboration among employees, enhancing industry-university partnerships, and providing an organizational environment that fosters dialogue and inquiry and develops effective information systems, to achieve a shared collective vision that supports innovation and continuous development, in support of Saudi Arabia’s Vision 2030
Does Financial Inclusion Affect Banks Profitability? Empirical Evidence from The MENA Region
No full textThis study seeks to examine the influence of financial inclusion on the banks’ profitability in the MENA region. Using an econometric analysis, namely (GMM), using 79 banks as a sample, covering the period (2011-2021). We assessed financial inclusion by utilizing three indicators: the number of ATMs, the number of bank branches, and the number of bank depositors. Additionally, we evaluated the bank\u27s profitability by considering two indicators: return on average assets and return on average equity. The findings indicate a noteworthy and favorable influence of ATMs and BRAN on the banks\u27 profitability as measured by ROAA- ROAE. However, there is no discernible impact of DEPO on the banks\u27 profitability, thus verifying our hypothesis 1-2. The results validate the notion that improving financial inclusion has the potential to boost the bank\u27s profitability in MENA countries
السياحة المسؤولة حل نموذجي لتفشي السياحة المفرطة-دراسة حالة مدينة برشلونة خلال الفترة 2018-2023: responsible tourism a model solution to the outbreak of overtourism - a case study of Barcelona city during the period 2018-2023
No full text تهدف هذه الورقة البحثية لتناول موضوع غاية في الحساسية والأهمية والذي أخذ صدى إعلاميا واسعا في العالم الغربي والعربي على حد السواء، وهو ظاهرة السياحة المفرطة المتفشية في جملة من الدول الأوروبية كالبندقية، وفينيس، وباريس وغيرها، والتي حذرت المنظمة العالمية للسياحة من توسع انتشارها لتطال كافة دول العالم مع اقتراب سنة 2030، واهتمت دراستنا بتناول مدينة برشلونة الإسبانية، التي عادت الظاهرة للاستفحال فيها بقوة مؤخرا، بعد الخروج من أزمة كوفيد-19، كرد فعل عالمي انتقامي على حالة الحجر الصحي، والغلق الكامل للمطارات والموانئ، وفرض مسافات التباعد لتجاوز الأزمة، ما كان سببا في تشجيع المدينة الكتالونية "برشلونة" على ضرورة انتهاج التوجه السياحي المسؤول كحل نموذجي، واستراتيجي، للتقليل من الآثار السلبية التي خلفتها السياحة المفرطة على هذه الوجهة السياحية الفريدة ذات المعالم الخالدة.
This research paper aims to address a very sensitive and important topic that has received widespread media resonance in the Western and Arab world alike, which is the phenomenon of excessive tourism that is widespread in a number of European countries such as Venice, Venice, Paris, and others, and which the World Tourism Organization has warned of expanding its spread to affect all countries. Countries of the world as the year 2030 approaches, and our study focused on examining the Spanish city of Barcelona, where the phenomenon has become increasingly widespread recently, after emerging from the Covid-19 crisis, as a global response to the state of quarantine, the complete closure of airports and ports, and the imposition of social distancing to overcome the crisis. What was the reason for encouraging the Catalan city “Barcelona” to adopt a responsible tourism approach as an exemplary and strategic solution to reduce the negative effects left by excessive tourism on this unique tourist destination with eternal landmarks.
 
A Standard Study on the Impact of Economic Diversification on the Economic Growth Rate in Algeria Using the ARDL Model for the Period 1990-2021.
No full text The study aims to measure the impact of economic diversification on the economic growth pursued by economic policy, adopting several models of economic diversification from the Growth Poles model in 1968 to the Economic Diversification Perspectives 2030 model. This is particularly relevant as the Algerian economy is characterized by its rentier nature and seeks to reduce its dependence on oil resources.
Through empirical analysis using the E-VIEWS software to measure the impact of economic diversification from 1990 to 2021 on economic growth, we found a negative short-term effect of diversification on economic growth. Economic growth in Algeria remains contingent on oil revenues, given the absence of productive sectors generating value-added, such as the manufacturing sector.
 
The impact of financial innovation in banks on financial performance - Dubai Islamic Bank as a model - an econometric study using the ARDL approach during the period 2013 - 2023
Get PDFFinancial innovation is one of the important topics that requires significant attention and in-depth analysis, therefore, this study aims to highlight the impact of financial innovation on the financial performance of Dubai Islamic Bank during the period 2013-2023, using the distributed Autoregressive model (ARDL) and utilizing the Eviews 12 software, financial innovation indicators were represented by investments in Sukuk (IS), Murabaha (MRH), Musharakah (MSH), and Ijarah (IJR), while the financial performance indicator was represented by net profit margin (NPM).The study\u27s findings indicate a statistically significant positive impact at a 5% significance level of financial innovation on the financial performance of Dubai Islamic Bank, This indicates the existence of a co-integration relationship in the short and long term, which confirms the importance of adopting financial innovations in the banking sector
E-Government from Vision to Implementation in Developing Countries (the North Africa) as a model Challenges and Reflections.
No full textThis study aims to explore the potential for enhancing e-government indicators in developing countries (North Africa), in addition to evaluating the most important challenges facing these countries when adopting the e-government indicators adopted by developed countries, which will reveal the potential opportunities for their application. The objectives of the study were to propose possible solutions to avoid obstacles and to enhance the use of e-government. One of the results reached is that if the North African countries follow the projects that have been achieved by the developed countries, it is possible to overcome the difficulties and apply e-government. However, there is still a lack of detailed applications that would help developing countries implement e-government mechanisms and benefit from the plans and programs of leading countries and try to keep pace with them.
 
البنية التحتية الرقمية ودورها في جذب الإستثمار الأجنبي المباشر إلى الجزائر خلال الفترة ) 2019 _ 2022 ): Digital infrastructure and its role in attracting foreign direct investment to Algeria during the period (2019_2022)
No full textThe study aims to shed light on the reality of digital infrastructure in Algeria, and its role in attracting and enhancing foreign investments in the country. This is done by presenting the most important indicators of information and communication technology, as well as the reality of Algeria in the field of using modern technology, and the most important challenges it faces.The study concluded with a set of results and recommendations, most notably that the digital infrastructure in Algeria is very weak and must be developed and strengthened, as a result of its crucial role in attracting foreign direct investment