Plant regeneration and cormel production was carried out from callus cultures initiated from White Prosperity and Priscilla Gladiolus Varities. It is aimed to produce plants and cormels in vitro all year round. The study included many experiments, these were the effect of Naphthalene acetic acid (NAA) and Kinetin (Kin) interaction on callus initiation, effect of Benzyl adenine (BA) on shoot regeneration from callus culture, effect of NAA on rooting after 30, 40 and 50 days in culture. The role of the type of agricultural medium (Peat moss or river sand and their mixture on plantlets survival after weaning was studied. Results showed that the interaction between NAA and Kin induced callus on axillary bud explants. Callus was best ini
... Show Moreهدفت هذه الدراسة لمعرفة تأثير إستخدام أدوات مساعدة في تعليم مهارة قفزة اليدين الامامية على بساط الحركات الارضية في الجمناستك الفني للرجال، من خلال تصنيع ادوات مساعده قليلة الكلفه، وافترض الباحث ان الادوات المساعده ستؤثر تأثيرا" ايجابيا" على تعلم مهارة قفزة اليدين الامامية على بساط الحركات الارضية، اذ استخدم الباحث المنهج التجريبي حيث بلغت عينة البحث المستخدمه في الدراسة 40 طالبا" من الذكور، واستخدم الباحث
... Show Moreتناولنا في بحثنا أحد اساليب البرمجة الخطية وهي الطريقة المبسطة لتقدير معلمات انموذج الانحدار الخطي عن طريق اختيار دالة الهدف التي تعمل على تقليل الحد الادنى لمجموع الاخطاء الناتجة من تقدير المعلمات بطريقة المربعات الصغرى الاعتيادية ( OLS) حيث سيتم في الطريقة المبسطة ( simplex) فرض قيود على نفس الاخطاء نفسها بهدف تصغيرها الى اقل ما يمكن للحصول على تقديرات افضل لمعلمات انموذج الانحدار الخطي . على اساس ان طريقة المرب
... Show Moreتندرج هذه الدراسة في صلب النظرية التداولية ، اذ تعد افعال الكلام من اهم المفاهيم التي يقوم عليها الدرس التداولي في كل اللغات
The numerical simulation for the low frequency waves in dusty plasma has been studied. The studying was done by taking two special cases depending on the direction of the propagation of the wave:First, when the propagation is parallel to the magnetic field K//B,this mode is called acoustic mode.Second,when K B this mode is called cyclotron mode.In addition, every one of the two modes divided into two modes depending on the range of the frequency.The Coulomb coupling parameter was studied, with temperature T,density of the dust particles Nd ,and the charge of the particle Qd.The low frequency electrostatic waves in dusty grains were studied. Also, the properties of ion-acoustic waves and ion-cyclotron waves are shown to modify even through
... Show MoreA numerical study of the double-diffusive laminar natural convection in a right triangular solar collector has been investigated in present work. The base (absorber) and glass cover of the collector are isothermal and isoconcentration surfaces, while the vertical wall is considered adiabatic and impermeable. Both aiding and opposing buoyancy forces have been studied. Governing equations in vorticity-stream function form are discretized via finite-difference method and are solved numerically by iterative successive under relaxation (SUR) technique. Computer code for MATLAB software has been developed and written to solve mathematical model. Results in the form of streamlines, isotherms, isoconcentration, average Nusselt, and average Sherw
... Show Moreتهدف هذه الدراسة إلى تطبيق النص المترابط ( أن النص المترابط هو الذي يتضمن أيقونات –كلمات-عنوان موقع.. تتيح لنا الانتقال من نص إلى أخر ومن موقع إلى أخر إنه نص شبكي عنكبوتي) على الفهرس التقليدي لمكتبة كلية الآداب بعد إدخال بيانات الرسائل والأطاريح الجامعية المتواجدة في تلك المكتبة إلى الحاسوب ولان هذا النوع من النظم قادر على تقديم الروابط بطريقة سهلة الاستعمال. وقد تم اختيار مجموعة من رسائل والأطا
... Show MoreThe Russian foreign policy of the post-cold-war era faced dilemmas in the light of the international and regional realities of the disintegration of the Soviet Union and the formation of a new unipolar international order led by the United States of America. Thus, Russian foreign policy-making was divided over the nature of the foreign policy to be followed. The achievement of the Russian goals, especially as the objectives of Russian foreign policy have been set within the framework of trying to regain the status and leading role, as well as the establishment of some fundamental changes to be consistent with the new international situation of the post-one The Russian Federation has adopted in the sphere of its foreign policy to the vari
... Show Moreهل أعرت انتباهك يوما ما على حقيقة كيف يتعلم طلابك؟ هل هم متعلمين تربطهم علاقة شخصية متبادلة مع الآخرين او هل هم منطقيين او مكانيين او موسيقيين او لغويين ام هم متعلمين من أنصار المذهب الطبيعي ؟ نعم، ولكن في الأغلب هم متعلمين رقميين. ولدوا في عالم رقمي حيث توقعوا أن يكونوا قادرين على خلق وتبادل المعلومات مع بعضهم البعض. ولان بعض الطلاب يعرفون كيف يستخدمون التكنولوجيا، فلماذا لا يستخدم ال
... Show Moreيهدف البحث الحالي إلى معرفة مستوى الاستيعاب القرائي وعلاقتها بالجوانب النفسية للكلمة لدى طلبة المرحلة الإعدادية ، وفي ضوء ما تقدم حدد الباحث أهداف البحث بالآتي : التعرف على : مستوى الاستيعاب القرائي لدى طلبة المرحلة الإعدادية والفروق في مستوى الاستيعاب القرائي بحسب (النوع ، والتخصص ) لدى طلبة المرحلة الإعدادية . ومستوى الجوانب النفسية للكلمة لدى طلبة المرحلة الإعدادية . الفروق في مستوى الجوانب النفس
... Show Moreان المشهد العام (لسكوت فيتزجيرالد) في صناعة الفلم، امر معقد حقا. لهذا يعتبر اهتمامه بالنص البصري في السينما، رغبة جمالية للنص المقصود والمعنوي الذي يمكن ان يلقي الضوء على اهمية الاوصاف المكانية والبصرية حول المستوي اللغوي. يهدف هذا البحث الى تقديم رؤية جديدة لرواية، " رقيق هو الليل" (1934). تعتمد جدلية هذه المقالة على حقيقة ادراك (فيتزجيرالد)، ان الحيز السينمائي لا يضمن نجاح الفني للكاتب. ومع انه كان معتادا على
... Show MoreThe majority of real-world problems involve not only finding the optimal solution, but also this solution must satisfy one or more constraints. Differential evolution (DE) algorithm with constraints handling has been proposed to solve one of the most fundamental problems in cellular network design. This proposed method has been applied to solve the radio network planning (RNP) in the forthcoming 5G Long Term Evolution (5G LTE) wireless cellular network, that satisfies both deployment cost and energy savings by reducing the number of deployed micro base stations (BSs) in an area of interest. Practically, this has been implemented using constrained strategy that must guarantee good coverage for the users as well. Three differential evolution
... Show MoreIn the last few years, the literature conferred a great interest in studying the feasibility of using memristive devices for computing. Memristive devices are important in structure, dynamics, as well as functionalities of artificial neural networks (ANNs) because of their resemblance to biological learning in synapses and neurons regarding switching characteristics of their resistance. Memristive architecture consists of a number of metastable switches (MSSs). Although the literature covered a variety of memristive applications for general purpose computations, the effect of low or high conductance of each MSS was unclear. This paper focuses on finding a potential criterion to calculate the conductance of each MMS rather t
... Show Moreيحظى تدريس مهارة التحدث بقدر قليل من الأهمية في مناهج اللغة الإنكليزية كلغة أجنبية في العديد من المؤسسات التعليمية بسبب قناعة مالكي القرار في تلك المؤسسات بأن مهارتي الاستماع والتحدث ليستا بنفس أهمية المهارات "الأكاديمية" المتمثلة في القراءة والكتابة والنحو. تبحث الدراسة الحالية في اراء طلبة ومعلمي اللغة الإنكليزية حول أهمية تدريس مهارة التحدث في مناهج اللغة الإنكليزية كلغة أجنبية. وقد شارك اثنان وأربعون
... Show MorePurpose This study investigated periodontal ligament (PDL) restoration in osseointegrated implants using stem cells. Methods Commercial pure titanium and zirconium oxide (zirconia) were coated with beta-tricalcium phosphate (β-TCP) using a long-pulse Nd:YAG laser (1,064 nm). Isolated bone marrow mesenchymal cells (BMMSCs) from rabbit tibia and femur, isolated PDL stem cells (PDLSCs) from the lower right incisor, and co-cultured BMMSCs and PDLSCs were tested for periostin markers using an immunofluorescent assay. Implants with 3D-engineered tissue were implanted into the lower right central incisors after extraction from rabbits. Forty implants (Ti or zirconia) were subdivided according to the duration of implantation (healing period: 45 o
... Show MoreThe researcher is one of the workers in university sports student activities, as he noticed that there is a diversity in the use of leadership patterns among managers of student activities in Iraqi universities between one director and another, which leads to the impact of these leadership styles on performance, positive or negative, in the level of human relations and the achievement of results. The researcher adopted the descriptive method in the survey method with relational relationships. The research sample consisted of (184) sports coaches who represent (27) universities and governmental and private colleges. To achieve the research objectives, the researcher used the Statistical Package for Social Sciences (Spss). To extract.statisti
... Show MoreThe present study was included the isolation of Keratinophilic fungi from water samples taken from 19 indoor public swimming pools in Baghdad during four season (summer ,fall ,spring ,and winter). Isolation period was September 2011and September 2012 . Samples were collected from different places in swimming pool . Sixteen keratinophilic fungal species, belonging to twenty –one genera were isolated using Surface Dilution Plating (SDP) and Hair Bait Technique (HBT) . Aspergillus genus was the most frequent and occurrence (19.84%), followed by Trichophyton (11.60%) and Fusarium (7.59% ) . The most common fungal infection occurred in summer season (42.16%) , and the most frequent month manifestation of species occurred in August
... Show MoreThe research aimed at finding out the effect of functional rotation on the tax performance of the employees of the General Authority for Taxes through the five-meter questionnaire prepared according to the required data. The data obtained from the research sample were analyzed. The results showed a significant effect of recycling In the tax performance, and this is evident from the proportion of his contribution to the interpretation of the total variation, which is a good indicator of the impact of functional rotation in the performance of the body sample research.
At the level of both individuals and companies, Wireless Sensor Networks (WSNs) get a wide range of applications and uses. Sensors are used in a wide range of industries, including agriculture, transportation, health, and many more. Many technologies, such as wireless communication protocols, the Internet of Things, cloud computing, mobile computing, and other emerging technologies, are connected to the usage of sensors. In many circumstances, this contact necessitates the transmission of crucial data, necessitating the need to protect that data from potential threats. However, as the WSN components often have constrained computation and power capabilities, protecting the communication in WSNs comes at a significant performance pena
... Show MoreThe current investigation conducted to examine the anatomical aspects of the Arum colocasia L. cultured in Iraq. The study included the anatomical characteristics of the different plant parts, including the root, stem and leaf, the results of the study on the vegetative parts were shown the important anatomical characteristics in terms of the form of the sections reviewed and vertical in them, and the study of their tissues, as well as the stomata complexities and the thickness of the epidermis, vascular bundles, pith, additionally the dimensions of mesophyll and in blade of the leaf. The research was conducted as it is one of the monocotyledon plants and because of the lack of anatomical studies on it, therefore it was studied to know the
... Show MoreThe aim of this research is to find out the influence of Daniel's model on the skills of the twenty-first century among the students of the scientific-fifth grade at the secondary and preparatory government morning schools for the academic year 2022- 2023. Two groups were chosen out of five groups for the fifth-scientific grade, one of which represents the experimental group that is taught by the Daniel model, and the other is the control group that is taught in the traditional method. The equivalence of the two research groups was verified with a set of variables. As for the research tool, a scale was developed by the researchers for the skills of the twenty-first century, in which they adopted the framework of the Partnership Organizat
... Show Moreشهدت الحركة الرياضية بكافة مستوياتها تطوراً مستمراً وشاملاً في جميع مفاصلها سواء من ناحية المهارات أو الطرق التدريبية أو الأجهزة و الأدوات المستخدمة مما يؤدي بدوره للوصول إلى الانجاز الذي نشهده اليوم . والتمرينات بالحبال الثقلية واحد من الاساليب التدريبيه الحديثة التي تهدف الى كسر حالة الملل، وزيادة القوة والصدمات بالنسبة للعضلة. ونظرا لأهمية القدرة الانفجارية التي حاولت الباحثة دراستها لأنها الطري
... Show MoreThis paper describes the geotechnical properties of Al-Ammarah soil of Ammarah city in Messan Governorate-southern parts of Iraq. Data and other information taken from numbers of geotechnical reports that performed under the supervision of Consulting Engineering Bureau of Baghdad University. This research is devoted to study the correlation between different physical properties such as (LL, PI, LI, n,t, e) with different mechanical properties such as (qu, cc, cs, SPT). The correlation is verified using simple regression analysis. From the regression results it was found that there is direct correlation between different parameters. By using the correlation-with some information- preliminary investigation stages and studies of any s
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