An-Najah National University

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Total Users: 486 | Published Articles: 2958 | General Posts: 185 | Total Comments: 8616

  • On Saturday, March 2, 2019 Ibrahim M. Alzuheir wrote:
  • Effect of cholesterol loaded methyl-β-cyclodextrin on ovine oocytes during chilling and vitrification
  • Published at:Revue Méd. Vét.,
  • This study was conducted to evaluate the protective effects of cholesterol pre-incubation on ovine oocytes exposed to cold stress and vitrification. In the first experiment, cumulus oocyte complexes harvested from ovaries of slaughtered ewes were exposed to 2 mg/ml cholesterol loaded methyl-ßcyclodextrin (CLC) in maturation medium for 2, 4 or 24 h. Oocytes were then exposed to cold stress at 4°C for 30 min, and the viability and chromosome abnormality of oocytes were evaluated. Our results showed no significant differences between treatment groups in regarding to oocyte viability or ooplasm integrity. However, oocytes exposed to cold stress without preincubation with CLC had significantly higher chromatin dispersion (P<0.05) than pre-incubated oocytes with CLC. In second experiment, oocytes were exposed to 2 mg/ml CLC in maturation medium for 2 h and vitrified after maturation in conventional straws (0.25 ml; CS) or in open pulled straws (OPS). Osmotic stress of vitrification media to oocytes was
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  • On Wednesday, October 3, 2018 Rateb Aref Abedl-Fattah Othman wrote:
  • Seroprevalence of Toxoplasma gondii in sheep in northern palestine and jordan valley
  • Published at:Indian Journal of Veterinary Research

  • This study investigated the incidence of toxoplasmosis in sheep flocks in Palestine through testing Toxoplasma gondii antibodies in sheep at three locations at the northern West Bank and two cities in Jordan valley of the Palestinian Territories. A total of 2479 blood samples were collected and the plasma was tested using indirect ELISA. Results showed that the infected sheep were 20.5% of total samples. The infection was highest in Jenin (30.2%) followed by Nablus (24%), Tulkarm (18.6%) Jericho (15.5%) then Tubas with lowest infection rate at 0.9%. There was a significant (P < 0.05) difference in the rate of infection between all site compared to Tubas. At the sheep farm level, Jenin was of highest infection rate (91.3%) followed by Tulkarm (88.9%), Nablus (84.2%), Jericho (73%) and Tubas (9.1%). These findings indicated that sheep products (milk, meat) might be at risk of contamination with the T. gondii, which had a potential health problem to consumers of sheep origin produ
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  • On Friday, January 5, 2018 Ibrahim M. Alzuheir wrote:
  • Serosurvey of Q fever in active reproductive rams in northern Palestine
  • Published at: Iraqi Journal of Veterinary Sciences, Vol. 31, No. 2, 2017
  • This investigation of Q-fever or Coxiellosis was undertaken to study the presence and the infection rate of C.burnetii infection in reproductively active rams in the Northern Palestine, where most of the sheep herds are located. In all, 2806 samples which collected from active rams during the reproductive season from herds in five cities (Jenin, Jericho, Nablus, Tulkarm, and Tubas). Sera were tested by ID Screen® Q Fever Indirect Multi-species enzyme-linked immunosorbent assay (ELISA) for detection of C. burnetii immunoglobulin G (IgG). A total of 28.1 % of ram sera were positive for C. burnetii IgG. There was no significant difference between the four location cities studied, However, a significantly low difference was observed in the Tubas city (P<0.05). The highest infection rate was detected in rams of Tulkarm (29.8%), followed by Nablus (29.5%), Jericho (28.4%), Jenin (28.2%) and Tubas (16.1%). Moreover, at the farm level, 73.3% had at least one seropositive animal. It had been concluded that a hi
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  • On Wednesday, November 29, 2017 Yahya Abdul-Raouf Othman Jaber wrote:
  • الحمام في الأدب العربي
  • Published at:التوباد

  • كان الطير في أدب العرب شأن عظيم ولا يزال . و يقف المطالع في آثارهم على جوانب شتى من ذلك ، هذه الجوانب تعكس الطير عندهم ، وما كانوا يسندونه إليه من مشاعرهم وأمانيهم ونحوها من الأحاسيس . ولم تكن  أنواع الطيور في ذلك سواء ، فمنها واسع الذكر و منها خاملة ، كما أن منها ما هو حسن الذكر يتفاءلون به ، ومنها ما هو سيء الذكر ، فلا يرونه أو يسمعون صوته أو اسمه حتى يسرع التشاؤم إلى نفوسهم . وربما ارتبط ذلك بأحوال بعينها ، كالجهة التي يأتي من قبلها أو يذهب إليها .

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  • On Wednesday, November 29, 2017 Yahya Abdul-Raouf Othman Jaber wrote:
  • بداية الاستشراق الإسرائيلي وأبرز رواده
  • Published at:كتاب المسار/ دبي

  • بداية الاستشراق الإسرائيلي وأبرز رواده
    أ.د. يحيى جبر
    المشرف على دائرة المعارف الفلسطينية
    أستاذ علم اللغة
    جامعة النجاح الوطنية
    ملخص البحث

    اهتمت \\\\\\\"إسرائيل\\\\\\\" بالاستشراق على نحو غريب؛ إذ يمكن أن نقول إنها \\\\\\\"مستشرقة\\\\\\\" احتلت أرضا؛ فهي في سباق مع نفسها لتكريس احتلالها، وتثبيت كيانها. وهي، من أجل ذلك، لا تدّخر جهدا في سبيل تحقيق أهدافها، وتفعل كل ما من شأنه أن يمهد الطريق أمام استمرارها، فبادرت إلى دراسة ما يحيط بها على المستويات: الفلسطيني والعربي والإسلامي، وأمعنت في استيعاب مقومات وجود الأمة ممثلة في الثقافة والل�
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  • On Monday, August 21, 2017 Ibrahim M. Alzuheir wrote:
  • Detection of Chlamydophila abortus antibody in active reproductive rams in sheep herds in northern Palestine
  • Published at:Revue de M&eacute;decine V&eacute;t&eacute;rinaire
  • Chlamydophila abortus is an important pathogen in human and a variety of animals. Ovine chlamydiosis (also known as Enzootic Abortion of Ewes (EAE)) is a venereal transmitted disease associated with late abortion and economic impact in sheep production. There is a lack of information about its status in Palestine, in which sheep are the most abundant farm animal that has a traditional and economic importance. Particularly, the infection rate in male is not well documented. In the present study, 2608 blood samples were collected from active reproductive rams between April and June 2016 in five Palestinian cities (Jenin, Nablus, Jericho, Tulkarm, and Tubas). Sera were tested by ID Screen® Chlamydophila abortus Indirect Multi-species enzyme-linked immunosorbent assay (ELISA) kit for detection of C. abortus immunoglobulin G (IgG) (IDvet, France). At the individual level, among 2608 samples analyzed, 385 (13.7%) were seropositive for C. abortus. The chi-square analysis was used to evaluate the risk factors ass
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  • On Saturday, May 20, 2017 Ibrahim M. Alzuheir wrote:
  • First prevalence report of contagious agalactia by Mycoplasma agalactiae in sheep in Jericho-Palestine
  • Published at:Scientific Journal of Veterinary Advances
  • Contagious agalactiae caused by Mycoplasma agalctiae (M. agalctiae) implicated for important losses in small ruminant due to mortality, decreased milk production, and cost of treatment and prevention. There is a lack of information about the disease status in Palestine. In this study, a survey of M. agalctiae antibodies in sheep blood from Jericho city near the Jordan River in the eastern Palestine was conducted. A total of 611 randomly selected sheep of different ages were investigated from different farms in two regions in Jericho city during the period from December 2016 to March 2017 to. Blood samples were collected and serum was subjected to serologic examination for detection of antibodies against M. agalctiae major membrane lipoprotein of (p48) using enzyme-linked immunosorbent assay (ELISA, CHECKIT, IDEXX). The overall M. agalctiae seroprevalence rate was 11.5%. Regarding the distribution of the disease in the investigated regions in Jericho city; the seroprevalence rate of M. agalctiae in sheep was 1
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  • On Thursday, June 30, 2016 Ahmad Awad Amin Raba\' wrote:
  • Effective teaching from an Najah National University M.A Student s’ perspectives
  • Published at:Journal of Languages and Culture
  • This study aimed at exploring effective teaching from An-Najah National University M.A. students’ perspectives. It also aimed at determining the role of the study variables (gender, accumulative average in BA and the school stage where they teach) in effective teaching from the same perspectives. To achieve these aims, the researchers used structured questionnaire of 21 items which were distributed among 30 TEFL majors (14 males and 16 females) that shape the sample of the study which was chosen randomly from all the MA TEFL majors. The study occurs during the first semester of the academic year 2014 – 2015. Respondents\' results indicate a moderate degree of effective teaching from An Najah National University M.A. TEFL students’ perspective with a percentage of 71.5%. Staff members who are imaginative, can do wonders in the English class whose ideas break monotony and make students participate lively in the class are considered the best. They can also teach any language skills interestingl
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  • On Saturday, April 2, 2016 Ahmad Awad Amin Raba\' wrote:
  • Storytelling as an Aid in Promoting Oral Proficiency of Grade Eleven Students From Teachers’ Perspectives in Tulkarm District
  • Published at:US-China Foreign Language, October 2015, Vol. 13, No. 10, 710-722 doi:10.17265/1539-8080/2015.10.004
  • This study aimed to investigate the role of storytelling in promoting students’ oral proficiency from the teachers’
    perspectives in Tulkarm District. To achieve this aim, the researchers prepared a 30-item questionnaire which was
    distributed among 50 male and female governmental school teachers, who teach English for Palestine for Grade 11
    in Tulkarm District, during the second semester of the scholastic year 2011–2012. The researchers used different
    statistical procedures which fit the collected data. The results of the study revealed that most of English teachers
    agreed that storytelling plays a remarkable role in promoting the 11th grade students’ oral proficiency in the
    classroom. In the light of these results, the researchers recommended using storytelling to motivate students to
    speak in the classroom, and to conduct studies on digital storytelling as an aid in promoting oral proficiency.
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