الأوراق العلمية

عرضالصفحاتعنوان الورقة +الملخصر.م
من 1 ـــ الي 2
من 3 ـــ الي 7
من 8 ـــ الي 10
من 11 ـــ الي 20

This paper represents a retrospective study of two-hundred patients with bronchial asthma or wheezy chest. The age of the patients ranged between 0-16 years, who periodically visit the respiratory clinic of Al-jala pediatric Hospital. The study reveals that 67.5% of patients suffer from bronchial asthma, whereas 32.5% of them suffer from wheezy chest. This diagnosis was based primarily on history and physical examination. According to medical history, we found that 66.5% of the patients were atopic, and these manifestations took place mostly from winter to spring 63%. The patients were subjected to treatment with long-term use of Oral Ketotifen 36%, Inhaled Beclomethasone dipropionate 49.5%, Inhaled Fluticasone propionate 10.5%, and Inhaled Budesonide 4%. The effect of these drugs was recorded and discussed in relation with recent and relevant publications. Ketotifen was found to be convenient and useful long-term treatment for controlling asthmatic attack in young children aged 0-4 years. A considerable improvement was observed in patients who received long-term treatment with Beclomethasone and Fluticasone through inhalation.

من 21 ـــ الي 25
من 26 ـــ الي 29

This retrospective case series study was carried out to estimate the incidence of supracondylar fracture of humerus among children in the period from January 1995 to December 1999 at Al Jala Trauma Hospital in Benghazi, the aim is to compare it with other series reported elsewhere, and to study the epidemiological patterns in relation to age, sex, side affected, and season. Records of 2552 children revealed 429 supracondylar fractures of humerus S.C.F.H. (16.8%), boys are more affected than girls and left side predominated, with peak incidence in summer season. Our observation was comparable to other studies and revealed a high incidence of S.C.F.H. in these children, and emphasized the urgent need for appropriate management and preventive and control measures.

من 30 ـــ الي 35

Lactobacillus acidophilus is a member of the acidophilus group of intestinal Lactobacilli that have been extensively studied for their Probiotic activities that include pathogens inhibition, epithelial cell attachment and immunomodulation. Antimicrobial activity of the L.acidophilus was assessed by agar well assay techniques. L.acidophilus inoculated into broth and incubated at 37oC for 24 hours. Cell free extract was obtained by centrifugation and passed through the membrane filter and wells of 6 mm diameter made in each plate of Tryptone dextrose agar seeded with pathogenic organisms such as Escherichia coli, Salmonella sp, Shigella sp, Aspergillus niger, Candida albicans. Cell free extract of individual L.acidophilus culture was transferred at the rate of 50 ?l into each well. The antibiogram activity of L.acidophilus was compared with Aloe vera. So another well was filled with Aloe vera extract. The plates were kept in a refrigerator for 3 hours and allowed the diffusion of the sample into well followed by incubation at 37oC for 48 hours without inverting. Zone of inhibition formed around the well was measured. Zone inhibition of pathogenic organisms was tested.

من 36 ـــ الي 44

Hexane is an alkaline hydrocarbon with the chemical formula CH3(CH2)4CH3. n-Hexane is an isomer of Hexane. Hexane isomers are largely unreactive, and are frequently used as an inert solvent in organic reactions because they are very non-polar. They are also common constituents of gasoline and glues used for shoes, leather products and roofing. The aim of this study is to evaluate the effects of prolonged exposure to n-hexane

من 45 ـــ الي 55

A total of 3645 stool samples (during the period from the 1st of January to end of December 2005) were submitted at the Central Lab in Sebha for routine (direct smear microscopy) examination of intestinal parasites. Blastocystis hominis was found in 970 (26.61%) of all stool specimens. The prevalence rate of B. hominis was significantly more (P<0.05) in males (28.98%) compared to females (23.89%). B. hominis infection was predominat (10.56%) among 21 to 40 years old age group. The infection of B. hominis was significantly more (P<0.05) in summer than in winter among outpatients attending the Central Lab in Sebha (during the period of January 2003 to December 2005). The frequent occurrence of B. hominis in the population is probably related to the weather condition with the suggestion that hot/dry weather (summer season) of Sebha region of Libya favors the development and transmission of this organism. The total number of 950 fresh faecal specimens from outpatients attending Central Lab in Sebha, were examined for B. hominis using direct microscopy, normal saline concentration, and short-term in-vitro (42.31%) than the direct smear microscopy (26.21%), and faecal concentration (34.10%). In-vitro cultivation does seem worth in the detection of B. hominis in diagnostic laboratories. Clinical symptoms were obtained from 108 patients with stools positive only for B. hominis. The most common symptoms were diarrhea (84.94%), cramping abdominal pain (66.66%), flatulence (17.20%) and vomiting (16.12%). High concentration of B. hominis cells were found in the symptomatic patients than in asymptomatic ones (9.20 cells per high magnification field versus 4.06 respectively) with statistical significant difference (P<0.001). Treatment of 50 symptomatic patients(exclusively infected with B. hominis) with 1500 mg of metronidazole daily for 7 days showed that no B. hominis were found in stools and clinical symptoms disappeared after the therapeutic course.

من 56 ـــ الي 61

Health questionnaires and parasitologic examinations of urine were performed on a random sample of 1506 pupils from Derna area, Libya in (2001) to investigate the prevalence of and risk factors for infection with Schistosoma hematobium (S.h.)in the area.The prevalence of S.h. was 5.4 % (82 cases). Age- prevalence of infection was from the age of 10 onward. Males had higher infection rates than females. Risk factors for Schistosoma hematobium infection were male gender; age 10 years; swimming in Shalal water; farming and pasthistory of schistosomiasis and Blood in the urine. Control of risk factors, health education and appropriate treatment strategies should be implemented to control S.h. infection in Derna.

من 62 ـــ الي 65

Ionizing radiation is known to cause harm in mammalian organisms. Deleterious effects include carcinogenicity, mutagenicity and organ system toxicity. The sensitivity of a tissue to radiation is proportional to its rates of proliferation. Therefore, one could infer that the human fetus, because of its rapid progression from a single cell to a formed organism in nine months, is more sensitive to radiation than the adult is. In humans, the major deleterious effects on the fetus include fetal wastage (miscarriage), teratogenicity, (birth defects), mental retardation, intrauterine growth retardation and the induction of cancers (such as leukaemia) that appear in childhood. Fortunately, not all exposures to ionizing radiation result in these outcomes. The risk of the fetus is a function of gestational age at exposure and the radiation dose. This subject will focus upon the biological effects of fetal irradiation and the legal framework for radiation protection of women of reproductive capacity.

من 66 ـــ الي 69

A thorough understanding of molar root anatomy is essential for proper diagnostic and therapeutic decisions. Factors such as root trunk length, furcation entrance, root separation, and root surface area can affect diagnosis, and consequently, the choice of the appropriate therapy for furcally involved molars. Several morphological factors related to furcations and roots contribute to the etiology and compromised prognosis of furcation – involved teeth. In this review an attempt has been made to recollect the salient anatomical features of mandibular molar furcation with an emphasis on their clinical implications.

من 70 ـــ الي 75
من 76 ـــ الي 86

Benign chest wall tumors are a diverse group of lesions with vascular, neural, osseous, cartilaginous or lipomatous origins. Radiologic assessment is an essential component in the management of these tumors which usually include the use of chest radiography to detect and localize the lesion and of cross-sectional computerized tomography (CT) and magnetic resonance (MR) imaging to further characterize the lesion and define its extent. Radiologic findings indicative of a benign tumor like presence of a well-defined mass without infiltration of adjacent structures, or the presence of bone erosion without destruction and clinical features such as slow growth and lack of pain support a relatively conservative management strategy. Occasionally, benign tumors may have imaging features that are specific enough to enable immediate diagnosis and initiation of appropriate management. Such features include the presence of mature fatty tissue with little or no septation (lipoma), the presence of phleboliths and characteristic vascular enhancement (cavernous haemangioma) and evidence of neural origin combined with a target like appearance on MR images (neurofibroma). Several primary bone tumors may also have characteristic features that allow confident identification, such as well-defined cortical and medullary continuity with the bone of origin (osteochondroma) or fusiform expansion and ground-glass matrix (fibro-dysplasia). Both aneurysmal bone cysts and giant cell tumors typically manifest as expansile osteolytic lesions and occasionally show fluid-fluid levels suggestive of diagnosis.