IUG Journal of Natural Studies 

About: IUG Journal of Natural Studies is an academic journal published by Islamic University of Gaza. The journal publishes majorly in the area(s): Population & Metamaterial. It has an ISSN identifier of 2409-4587. Over the lifetime, 288 publications have been published receiving 1142 citations. The journal is also known as: Maǧallaẗ al-ǧāmi’aẗ al-islāmiyyaẗ li-l-dirāsāt al-ṭabīʿiyyaẗ wa-al-handasiyyaẗ.

Arabic Text Classification Using Maximum Entropy

Abstract: In organizations, a large amount of information exists in text documents. Therefore, it is important to use text mining to discover knowledge from these unstructured data. Automatic text classification considered as one of important applications in text mining. It is the process of assigning a text document to one or more predefined categories based on their content. This paper focus on classifying Arabic text documents. Arabic language is highly inflectional and derivational language which makes text mining a complex task. In our approach, we first preprocessed data using natural language processing techniques such as tokenizing, stemming and part-of-speech. Then, we used maximum entropy method to classify Arabic documents. We experimented our approach using real data, then we compared the results with other existing systems.

Assessment of Self-Medication Practice Among University Students in Palestine: Therapeutic and Toxicity Implications

Abstract: self-medication is practiced significantly worldwide. No data is available on the current status of self-medication practice in Palestine. The objective of this study is to assess the extent of self-medication practice among a random sample of An-Najah National University students. Methods: this was a cross-sectional, anonymous, questionnaire-based survey that included 1581 students of different academic levels enrolled at different faculties at An-Najah National University. A pre-validated questionnaire with several open-ended and closed-ended questions was administered to the students. Data were coded, entered, and analyzed using SPSS version 13. Results: sixty three percent of respondents were females enrolled at non-medical schools. The mean age of respondents was 19.9 years. Ninety-eight percent of respondents reported practicing self-medication. There was no statistical difference between respondents who reported practicing self-medication based on gender or type of school (medical vs. non medical). The average number of medications reported by self-medication practitioners was 2.63 ± 1.38 medications per respondent. Analgesics, decongestants, herbal remedies, and antibiotics were the most common classes reported in self-medication. Headache, sore throat, flu, and dysmenorrhea were the most common aliments for which respondents seek self-medication. The majority of respondents practiced self-medication because the ailments they had were simple or because they had previous experience. The majority of respondents had good medication knowledge but did not posses high self-care orientation. Neither medication knowledge, nor self-care orientation was a predicting factor associated with the practice of self-medication. However, in selecting a particular type of medication the type of school, gender, and self-care orientation were influential. Conclusion: self-medication is very common among An-Najah students. This practice is common for treating clinical conditions that are either simple or previously experienced. Although, no significant predictors of self-medication did exist among the studied group, levels of self-care orientation and medication knowledge can be of value in analyzing the types of medications employed by self-medication practices.

Antibacterial activity of rhus coriaria. l extracts growing in palestine

Abstract: . Abstract: Disk diffusion and micro-dilution techniques were used to determine the antibacterial activity of water, ethanolic and methanolic extracts of Rhus coriaria ripe berries against five clinical bacterial strains (Methicillin-resistant Staphylococcus aureus (MRSA), multi-drug resistant Pseudomonas aeruginosa, enterohemorrhagic Escherichia coli O157 (EHEC), Proteus vulgaris and Klebsiella pneumoniae). Bacillus subtilis ATCC6633 was used as a reference strain. The zone of inhibition varies depending on bacterial species and type of extract. The average diameter of inhibition zones ranges from 0 to 19 mm, 15 to 25 mm and 15 to 22 mm for water, ethanolic and methanolic extract, respectively. The MIC value of ethanolic extract was 1.25 mg/ml against MRSA, EHEC, P. aeruginosa and Proteus vulgaris, while 0.156 mg/ml against B. subtilis. In general these results showed that the antibacterial activity of R. coriaria ripe berries extracts was more effective against Gram-positive bacteria than Gram-negative.

Double Sequences and Double Series

Abstract: This research considers two traditional important questions, which are interesting, at least to most mathematicians The first question arises in the theory of double sequences of complex numbers, which concerns the relationship, if any, between the following three limits of a double sequence s : N×N −! C

Occurrence of Gastrointestinal Parasites Among Pre-School Children, Gaza, Palestine

Abstract: Aims: The present study is aimed to asses the occurrence of gastrointestinal parasites among pre-school children in Gaza. Methods: In this study 679 stool specimens were collected from pre-school children aged <10 months to 60 months attending Ard El-Insan Association (Community primary health care center) in Gaza city. Stool specimens were inspected by a direct smear microscopy and sedimentation techniques. Results: The present study found that 16.6% of the studied children were infected with intestinal parasites. Infection with Giardia lamblia showed the highest prevalence (10.3%) among other parasites detected. Intestinal parasite prevalence was higher among male children than females. All age groups were susceptible for parasitic infection and no clear trend due to age. Conclusions: Intestinal parasites was found also among pre-school children in Gaza and those group of children need more medical attention to avoid them the intestinal parasites consequences. Key words : Pre-school children, gastrointestinal parasites, Prevalence, Gaza