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RUTHENIUM@) COMPLEXES OF O,N-DONOR SCHIFF BASE LIGANDS AND THEIR USE AS CATALYTIC ORGANIC OXIDANTS مي مصطفي أحمد حسن

number of new rnthenium(I1) complexes, [Ru(PPh3)2L2] (L = monoanions of Schiff bases formed from 2,3-dihydroxybenzaldehyde, 3,5-dibromosalicylaldehyde and salicylaldehyde with aniline or its p-substituents), have been prepared. They were characterized by spectroscopic techniques and investigated by cyclic voltammetry. The effective catalytic oxidation of alcohols by these complexes in the presence of N-methylmorpholineN-oxide or molecular oxygen gas as co-oxidants is reported

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SCHIFF BASE COMPLEXES OF RUTHENIUM(III), MOLYBDENUM(V1) AND URANIUM(W), AND USE OF THE FORMER AS CATALYTIC ORGANIC OXIDANTS مي مصطفي أحمد حسن

he new complexes [Ru1”X2(AsPh3)2(HL)] (X = Cl, Br ; HL = monoanions of Schiff bases formed from condensation of 2,3_dihydroxybenzaldehyde and aniline or its oand p-substituted derivatives), cis-[MoO,(HL),] and truns-[UOz(HL), * nH,O] (n = 0 or 2) have been isolated. They were characterized by spectroscopic techniques and investigated by cyclic voltammetry. The ruthenium(II1) complexes were found to be effective catalysts for oxidation of primary alcohols to aldehydes, secondary alcohols to ketones and 3,5- di(tert-butyl)catechol to the corresponding o-benzoquinone in the presence of N-methylmorpholine-N-oxide as co-oxidant.

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الأنبابي وأدوات التماسك النحوي في البسملة دراسة وصفية – مجلة كلية اللغة العربية بأسيوط – جامعة الأزهر – مصر - الجزء الثاني- العدد (37) – 2018م. دكتور/ أحمد علي لقم
مستخلص البحث عرفت الساحة النقدية ظهور عديد من المصطلحات النقدية التي شغلت اهتمام الباحثين والدارسين، ومن أبرزها مصطلح التماسك النصي؛ فمنذ توظيفه من طرف الباحثين الغربيين ودخوله إلى العالم العربي توسع الباحثون في دراسته تنظيرا وتطبيقا، وهو ما أسهم في تعدد المؤلفات النقدية المتخصصة فيه، وثرائها، وتحاول هذه الدراسة أن تلقي الضوء إلى جهود علمائنا كالأنبابي في دراسته للتماسك النصي في (بسم الله الرحمن الرحيم) والذي سبق به الباحثين الغربيين، وقد عنونت هذا البحث بــ «الأنبابي وأدوات التماسك النحوي في (بسم الله الرحمن الرحيم) دراسة وصفية»؛ حيث انطلق البحث من إثارة إشكالية مفهوم التماسك النصي وآلياته وانعكاسه في دراسة علماء التراث مثل الأنبابي، وحاول البحث الإجابة على بعض الإشكاليات المتعلقة بذلك؛ فاشتمل على تمهيد ومبحثين وخاتمة:- المبحث الأول: بين التماسك النصي والدلالة، وفيه خمسة مطالب:- المطلب الأول: تعريف التماسك النصي وأدواته. المطلب الثاني: التماسك النصي في التراث العربي. المطلب الثالث: المعنى الدلالي وأثره في التماسك النصي. المطلب الرابع: دور النحو العربي في التماسك النصي. المبحث الثاني: آليات التماسك النحوي في (بسم الله الرحمن الرحيم) عند الأنبابي، ويتكون من المطالب التالية:- المطلب الأول: الإحــالة.  المطلب الثاني: التعريــف والتنكـير. المطلب الثالث: الحذف. الخاتمة: وفيها أهم النتائج ومنها: أن التماسك النصي له أدوات يرتكز عليها، ولهذه الأدوات دور مهم في الإسهام في عملية التماسك الدلالي للنص، وقد سبق علماء العربية الغرب في تأصيل هذا الفن، وكان لهم مصطلحاتهم المستقلة، ويشكل النحو عنصرا أساسا من عناصر تماسك النص، وتعد الضمائر وأسماء الإشارة والأسماء الموصولة من أهم المكونات النحوية في النص العربي، ولا يمكن إغفال دور ظاهرة الحذف في التماسك النصي، ويجب استنباط أدوات...
Evaluating the Certificate of Teaching English as a Foreign Language (CTEFL): A Way to Quality ابوالقاسم صباح السعيد إبراهيم
This study aims to evaluate the Certificate of Teaching English as a Foreign Language (CTEFL) programme provided by the Postgraduate Unit, English Language Institute, University of Khartoum, by identifying the students’ opinion on the four modules, discovering the students’ perception of the teaching, and their own performance. In addition, it tries to judge the success of the programme as perceived by the students and ways for improvement. To this end, the study used a questionnaire. The participants were 13 students who studied in cohort 5 of the CTEFL. The results showed that the students found the programme successful since it contained interesting and useful modules. The students were also satisfied with their instructors’ and their own performance. ...
The Current Situation of English Language at University of Khartoum: Problems and Solutions ابوالقاسم صباح السعيد إبراهيم

The need for English language in Sudan is increasing rapidly for a variety of reasons, despite the fact that there is a severe decline of the students' standards of English. This study tries to locate the problems that confront the learning and teaching of English language at University of Khartoum A questionnaire was distributed to 303 second year students at the university to investigate the problems that face them in learning English language. Results show that the problems related to the students themselves, the syllabus, the learning environment, and relatively to the teachers. Some recommendations were given to solve these problems.

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ESP Needs Analysis: A Case Study of PEH Students, University of Khartoum ابوالقاسم صباح السعيد إبراهيم
Needs analysis is considered a necessary first step in designing ESP courses. This study, therefore, aims at analysing students at the Faculty of Public and Environmental Health (PEH) at the University of Khartoum (U of K), Sudan, needs for English language. The study adopted the needs analysis framework suggested by Dudley-Evans and St John (1998) focusing on target needs analysis, present situation analysis, and learning means needs analysis. The study used a questionnaire, a proficiency test, and an interview to collect data. The participants were 490 students at PEH (390 participated in the questionnaire and 100 in the proficiency test) and two professors at the Faculty. The study found that PEH students need English language for academics study. The students rated their proficiency as good, but the test revealed that they were of weak proficiency. All the four skills in addition to vocabulary, grammar, and pronunciation are regarded as important to the students. Similarly, almost all the sub-skills are found to be important. The students have a variety of learning needs such as learning in pairs, groups, and through ICT. The study recommends that PEH students’ proficiency should be raised and a course that meets the students’ needs is needed. ...
Specialization Professors Perception on their Students Needs for ESP: PEH Students Case ابوالقاسم صباح السعيد إبراهيم

Needs analysis (NA) is one of the most important elements in ESP. Although teachers are considered one source of information for NA, they are rarely consulted. The aim of this paper is to investigate the professors at the faculty of Public and Environmental Health (PEH), University of Khartoum perceptions on their students’ needs for English language. A questionnaire and an interview were adopted for data collection. The study concluded that PEH students needed English for academic study and future job. The professors regarded their students as week in English language. Moreover, all the four skills were important for the students in addition to all the sub-skills in the questionnaire. The professors preferred that their students study an English foe Specific Academic Purposes (ESAP) course.

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Academic Writing Needs Assessment: A Case study of MPH Students, University of Khartoum ابوالقاسم صباح السعيد إبراهيم

This study aims at assessing Master’s of Public Health (MPH) students’ needs for academic writing. The study attempts to identify students’ target needs for academic writing and their present situation in writing academic English. The study adopted the quantitative approach through collecting data employing an interview with two professors at the Faculty of Public and Environmental Health (PEH) and analysing the Guidelines for the submission of theses and dissertations for higher degrees in medical and health sciences, a manual prepared by the Medical and Health Studies Board MHSB), Graduate College, U of K and five sample theses written by MPH students. The results showed that the students needed to write a research report (thesis) containing four chapters with an abstract. In addition, the students encountered problems in academic writing regarding grammar, vocabulary, punctuation, and functions of language in academic writing.

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Needs Analysis in English for Academic Purposes: The Case of Teaching Assistants at the University of Khartoum ابوالقاسم صباح السعيد إبراهيم

  This study aimed at investigating the English language needs of teaching assistants at the University

of Khartoum, Sudan. The study focused on identifying the teaching assistants’ purposes for learning English, and discovering the most important skills, language areas, and academic sub-skills they needed. The study also attempted to determine the teaching assistants’ proficiency in the English language. To this end a quantitative approach was adopted. Data were collected through a questionnaire and a test. The results revealed that the teaching assistants needed English for their social life and academic purposes: to communicate with the outside world and to teach their students. The skills regarded as most important were writing and speaking. Finally, the level of proficiency of the participants in the English language was below the average in all the skills. ...
Accuracy Order of English Grammatical Morphemes of Saudi EFL Learners ابوالقاسم صباح السعيد إبراهيم
Purpose: This paper investigates the accuracy order of grammatical morphemes followed by Saudi EFL learners. The major aim of the research was to reveal the pattern of grammatical morpheme acquisition of the participants, and to compare it against the Natural Order Hypothesis (NOH) as stated by Krashen (1977). The different factors that affected the generated order were also discussed. Research Methods: The present research adopted a descriptive quantitative design. Three groups of male and female students (n= 258) participated in the study. The participants were selected randomly from public schools and university colleges. They responded to a grammar elicitation task designed to test their accuracy of using grammatical morphemes. Pica's (1983) TLU method was used to assess the participants' performance. Findings: It was found that Saudi EFL learners developed the accuracy of using grammatical morphemes in a similar sequence regardless of their educational stages. Although this sequence was fixed, there seemed to be a clear effect of the educational stage upon the quality of their usage. The generated accuracy order was found to be different from the NOH. This result suggested that the participants' first language (L1) affected the accuracy order of grammatical morphemes. Implications for research and practice: The findings of the study suggested that course book lesson plans should be designed according to the generated order to facilitate grammatical morpheme acquisition. Further research that will utilize a bigger size...
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