Two new Schiff bases (S1,S2) derived from 2-Amino-2-deoxy chitosamine and mnitrobenzaldehyde
(S1), and with salicylaldehyde (S2) were prepared and
characterized using FTIR, UV and mass spectrometry. New complexes of the
transition metal ions Co (II), Ni (II), Pd (II), Pt (II) with the two ligands were
synthesized and their structures were elucidated depending on atomic absorption,
FTIR, UV-visible spectra in addition to magnetic susceptibility and electrical
conductivity measurement. Metal to ligand [M: L] ratio was obtained for all
complexes in ethanol using molar ratio method, which gave comparable results with
those obtained for the solid complexes. Stability constant of the complexes were
determined using s

Kinematics is the mechanics branch which dealswith the movement of the bodies without taking the force into account. In robots, the forward kinematics and inverse kinematics are important in determining the position and orientation of the end-effector to perform multi-tasks. This paper presented the inverse kinematics analysis for a 5 DOF robotic arm using the robotics toolbox of MATLAB and the Denavit-Hartenberg (D-H) parameters were used to represent the links and joints of the robotic arm. A geometric approach was used in the inverse kinematics solution to determine the joints angles of the robotic arm and the path of the robotic arm was divided into successive lines to accomplish the required tasks of the robotic arm.Therefore, this

Finger vein recognition and user identification is a relatively recent biometric recognition technology with a broad variety of applications, and biometric authentication is extensively employed in the information age. As one of the most essential authentication technologies available today, finger vein recognition captures our attention owing to its high level of security, dependability, and track record of performance. Embedded convolutional neural networks are based on the early or intermediate fusing of input. In early fusion, pictures are categorized according to their location in the input space. In this study, we employ a highly optimized network and late fusion rather than early fusion to create a Fusion convolutional neural network

هدف البحث الى التعرف على تأثير منهج التدريب العقلي في تطوير دقه اللكمات المستقيمة لدى اللاعبين الناشئين بالملاكمة. وتكمن مشكلة البحث في ان بعض المدربين ليس لديهم معلومات عن اهمية وفعالية التدريب العقلي، وكذلك مناهجهم ووحداتهم التدريبي تفتقر الى تدريبات التصور العقلي، واستخدام الباحثان المنهج التجريبي بتصميم المجموعة الواحدة ذات الاختبار القبلي والبعدي لملائمته طبيعة المشكلة واستخدام هذه التدريبات م

The present study attempts to determine the effect of freezing for different periods on preserved bodies of fish in the laboratory to keep for the research and diagnosis of taxonomic studies and not for consumption. It also endeavors to identify the effect of freezing on some morphometric features of the preserved bodies of fishes. Planiliza abu fish were used to conduct the present study. Fish were frozen by regular freezing in the home refrigerator freezer with temperatures reaching four degrees centigrade below zero. Freezing time is distributed over four months; biometric measurements of frozen fish have been taken in these periods represented by body total length, Standard length, and Head length in centimeters using a ruler ve

Objectives: This study explored knowledge, attitude, and practice of infection control by dental students at College of Dentistry/ University of Baghdad, Iraq. Material and Methods: Three hundred dental students participated in this study. A self administrated questionnaire with 21 close ended questions related to use of personal protective equipments, infection control awareness, vaccination status, percutaneous exposures, and attitude towards treatment of patients with hepatitis B (HBV)/ or human immunodeficiency virus (HIV) was distributed to dental students. Data were analyzed using Statistical Package for Social Sciences (SPSS) version 21. Fisher exact and Chi-square test were used with significance level set to 0.05. Results: The

In this study, the harvest of maize silage with the cross double row sowing method were tested with a single row disc silage machine in two different PTO applications (540 and 540E min-1) and at two different working speeds v1, v2 (1.8 and 2.5 km h-1). The possibilities of harvesting with a single row machine were revealed, and performance characteristics such as hourly fuel consumption, field-product fuel consumption and PTO power consumption were determined in the trials. The best results in terms of hourly fuel consumption and PTO power consumption were determined in the 540E PTO application and V1 working speed. When the fuel consumption of the field-product is evaluated, it is obtained with V2 working speed and 540E PTO application. As

The goal of this study is to build an application that can be used in difficult cases and sudden circumstances during the pandemic and post-disaster state, which can be the development of digital risk management and mitigating the difficult impact of the epidemic through the improvement of IT and IoT that can be fine by finding initial solutions and make the world like a digital city that could be managed by the network. We provide this study to gain an overview of reasons for delayed and exceeded costs in a select of thirty Iraqi case projects by controlling the time and cost. The drivers of delay have been investigated in multiple countries/contexts. however, there is little country data available under the conditions that have ch

A new four series of 2,2′-([1,1′- phenyl or biphenyl]-4,4′-diylbis(azanediyl)) bis(N′-((E)-1-(4-alkoxyphenyl) ethylidene) acetohydrazide) [V-XI]a,b and 1,1′-(2,2′-([1,1′- phenyl or biphenyl]-4,4′-diyl bis(azanediyl)) bis- (acetyl)) bis(3-(4-ethoxyphenyl)-1H-pyrazole-4-carbalde hyde) [XII-XVIII]a,b have been synthesized by varying terminal lateral alkoxy chain length (n = 1–3, 5–8), central linkage group (phenyl or biphenyl) and induced pyrazole heterocyclic ring in the main chain. The last two series were synthesized by the cyclization of substituted acetophenone hydrazones with Vilsmeier–Haack reagent (DMF/POCl3) to produce 4-formylpyrazole derivatives. The chemical structures of the synthesized compounds were examine

الجناس ظاهرة بديعة مال اليها الأدباء والشعراء بكثرة لوجود ايقاع صوتي ومؤثر دلالي يحاول البحث سبر غور المناظرات الخيالية في العصر المملوكي وبيان اهم المواضع التي وردت فيها الظاهرة مع الوقوف عند أثرها الكلامي في إيقاع حالتي الاقناع والتشويق بما حملت من صور ذهنية متحركة جسدت معاني الاثر عند المتلقي.  

       تناولت الدراسة في هذا البحث ما يُعرف بالدليل الشعري وأثره في توجيه الدلالة ضمن معجم تاج العروس، وكيفية اعتماد العلماء مثل الزبيدي وغيره على الشواهد والأدلة القرآنيةالشعرية في توجيه معاجمهم وتوضيح المعاني.

كما سيتم تسليط الضوء على أثر الدليل السياقي في تشابه الكلمة ضمن معجم تاج العروس للزبيدي مع الاستشهاد بالأبيات الشعرية التي لخصت الغرض وحددت المعنى، ليتم الانتقال بعدها إلى دراسة

هدفت الدراسة التعرف على الشفقة بالذات لدى الطلبة فضلا عن التعرف على الفروق في الشفقة بالذات وفق متغيرات : الجنس –التخصص الدراسي – المرحلة الدراسية، تالفت عينة الدراسة من (200) طالب وطالبة موزعين بالتساوي حسب الجنس (ذكور – اناث) والتخصص الدراسي (علمي - انساني) والمرحلة الدراسية ( الاولى - الرابعة )، وبعد تطبيق مقياس الدراسة وتحليل الاجابات احصائيا ، اظهرت النتائج ان الطلبة لديهم شفقة بالذات كما اظهرت النتائج عدم

The business process re-engineering is one of the popular concepts at this time because its provide a radical solution for the problems that companies faces. This method appeared because the changes of competition and costumers 'desires at the two last decades. The markets become wider because of the globalization so the companies must change its way to stay a life.

        The research aim is to concentrate on the  BPR  because it's a  philosophy aims to re-organize the company's business process to achieve the competitive advantage, the research also aims to a plicate  the BPR using cost management technique  in the State Company of Vegetable Oils Industry.

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The Trump administration asserts that the actions of the United States are neither constrained by international organizations nor international controls, as they strive to seek a leadership position in a competitive manner, advance the reform of the United Nations in order to gain strength and support for US interests, and promote conservative social values. This negative policy is the result of the influence and mutual influence of long-term isolationism, the "American exception" and popular trends in the United States, as well as the result of the Trump administration's attempt to employ powerful means to revitalize the United States' strong position in the United Nations. However, the Trump administration’s policy toward the United

The proton momentum distributions (PMD) and the elastic
electron scattering form factors F(q) of the ground state for some
even mass nuclei in the 2p-1f shell for 70Ge, 72Ge, 74Ge and 76Ge are
calculated by using the Coherent Density Fluctuation Model (CDFM)
and expressed in terms of the fluctuation function (weight function)
|F(x)|2. The fluctuation function has been related to the charge
density distribution (CDD) of the nuclei and determined from the
theory and experiment. The property of the long-tail behavior at high
momentum region of the proton momentum distribution has been
obtained by both the theoretical and experimental fluctuation
functions. The calculated form factors F (q) of all nuclei under s

Abstract. Full-waveform airborne laser scanning data has shown its potential to enhance available segmentation and classification approaches through the additional information it can provide. However, this additional information is unable to directly provide a valid physical representation of surface features due to many variables affecting the backscattered energy during travel between the sensor and the target. Effectively, this delivers a mis-match between signals from overlapping flightlines. Therefore direct use of this information is not recommended without the adoption of a comprehensive radiometric calibration strategy that accounts for all these effects. This paper presents a practical and reliable radiometric calibration r

This research study focuses on fundamental questions. It deals with the content of the critical reviews through which the most important sources that undermine the renaissance of the Islamic human society can be concluded. It is the vague fetishization of the sacred between religion, politics, and ideas, which members of society live in  and which raised the dust of closed-minded fanaticism that led to the return of deviant extremism. It is oppression, violence, and domination, all of which are professional tools in the manufacture of the ideology of extremism in all its forms. Here,  the idea matured in giving a human, intellectual and philosophical overview that mixed the required drawing in the formulation of scientific cont

هدفت الدراسة الى تحديد مسافة ونسب مقاومات لبناء اختبارات تحمل القوة الخاص لفعالية ركض 1500 متر لعدائي الشباب ولتحقيق الهدف استخدم الباحثان المنهج الوصفي بالأسلوب المسحي لملائمته مع مشكلة البحث، واشتمل مجتمع البحث على عدائي المركز الوطني لرعاية الموهبة الرياضية لالعاب القوى وعدائي اندية العراق التابعة الى الاتحاد العراقي المركزي لالعاب القوى لفئة الشباب وتم اختيار العينة بالطريقة العمدية وال

هدفت الدراسة الى بناء وتقنين مقياس الإدارة الفعالة للاتحاد العراقي لكرة السلة من وجهة نظر العاملين، بغية الوصول الى حل مشكلة البحث اعتمد الباحثان المنهج الوصفي، اذ حتمت المشكلة على الباحثان استخدام هذا المنهج، تمثلت حدود مجتمع البحث في هذهِ الدراسة بأعضاء الهيئة الادارية لأندية كرة السلة والبالغ عددهم (424) عضواً، واعضاء الاتحادات الفرعية لكرة السلة والبالغ عددهم (54) عضواً، مدربي المنتخبات الو

هدف البحث إلى التعرف على الفروق بين نتائج الاختبارات القبلية والبعدية للمجموعتين التجريبية والضابطة فضلا عن معرفة الفروق بين المجموعتين التجريبية والضابطة في الاختبارات البعدية لمهارة التلويح الدائري لمعرفة دور جهاز الفطر الميكانيكي المساعد المصمم في تعلم المهارة قيد الدراسة. وقد استخدم الباحثتان المنهج التجريبي بتصميم المجموعتين المتكافئين، وتكونت عينة البحث من (8) لاعبين، وهم مجتمع الاص

Sustainability means, the integration between the ecological, technological, economical and social systems to forming the urban environment to maintain the resources for the future generations. Sustainability focuses on many principles: Using the natural energy, learning from the traditional architecture, minimizing the consumption of the resources.To develop some criteria's for contemporary dwellings in hot dry climate, the research tried to study and analyze the traditional architecture to diagnose its importance and ability to solve contemporary problems, one of which is the lack of comfortable and suitable dwelling units in hot dry climate regions.The research will study the traditional urban fabric components in the hot- arid zone,

Praise be to God, and prayers and peace be upon our master Muhammad, the Messenger of God, his family, his companions, and whoever is guided by his guidance.

To proceed: Talking about the Companions of the Messenger of God, may God’s prayers and peace be upon him, calls us to talk about the Messenger of God, may God’s prayers and peace be upon him, because God Almighty gave him victory through them.

The topic is too big to cover such pages, so I will suffice with defining them, the necessity of loving them, the prohibition of insulting them, and that they are included in the circle of companionship, justice, and preference over those who follow them among the believers, based on the inspiration of the verses and hadit

        This research shows Ibn Battuta's approach in his book Ibn Battuta's Journey that is called "Tuhfet Al-Anzar fi Ghera'ib Al-Amsar wa Eaja'ib-Al-Asfar", which explore the urban aspects of shops, markets, palaces, houses, mosques, monasteries and other antiquities within its pages, whether in terms of the site or in terms of studying it and the plans that explained the basis for the art and architecture of these cities, the intellectual dimensions in their civilizational history are clarified

ليس من الغريب القول، ان مسألة الصحة والمرض من اقدم المسائل التي شغلت ذهن الانسان بل لعلها تأتي في الدرجة الثانية بعد مسالة تامين الطعام والمأوى، بمعنى ان قلق الانسان على نفسه مما قد يصيبه من مرض او حدث مفاجئ كان قد اثار مخاوفه فجعله يشعر بالحاجة الاساسية الى ايجاد علاجات تشفيه مما اصابه، وعليه فان هدف البحث هو تسليط الضوء على تطور علم الطب والاطباء عبر العصور التاريخية مع توضيح وابراز دور وظيفة الطب باعتباره

Background: Molars and premolars are considered as the most vulnerable teeth of caries attack, which is related to the morphology of their occlusal surfaces along with the difficulty of plaque removal. different methods were used for early caries detection that provide sensitive, accurate preoperative diagnosis of caries depths to establish adequate preventive measures and avoid premature tooth treatment by restoration. The aim of the present study was to evaluate the clinical sensitivity and specificity rates of DIAGNOdent and visual inspection as opposed to the ICDAS for the detection of initial occlusal caries in noncavitated first permanent molars. Materials and Methods: This study examined 139 occlusal surface of the first permanent