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Study of effects of aluminium chloride on histological structure of liver and spleen in pregnant rats and their offspring
Houriya MESTAGHANMI,Souad EL AMRANI,Imane MTOUGUY,Rachid SAILE
Technologies de Laboratoire , 2011,
Abstract: Histological study of organs reflects the General State of animals, including, if they are subject to treatment. The purpose of our study is to elucidate the effect of the administration of different doses (50, 100 and 200 mg/Kg/day) of aluminum chloride during the days 9-13 of gestation on the histological structure of the liver and the spleen of pregnant rats and their offspring. In pregnant rats, AlCl3 leads, at the level of the liver, to a very important development of the connective tissue of the centrilobular vein, with inflammatory foci and hepatocyte injury. While at the level of the spleen, there is a development of the white pulp against the red pulp with an abundance of conjunctive fibres and dilation of the lining of arterioles, which reflects a failure of the circulatory system. The fetuses of rats treated by AlCl3, show no change in the histological structure of the spleen. The AlCl3 action is more marked than mothers in their fetuses. This certifies that the placenta forms a more or less selective barrier to some constituents, and that spleen in fetuses temporarily offset the effects of AlCl3
EFFECTS OF ALUMINIUM CHLORIDE ON HISTOLOGICAL STRUCTURE OF LUNGS, KIDNEY AND INTESTINE IN PREGNANT RATS AND THEIR OFFSPRING
MESTAGHANMIHouriya,Houriya, EL AMRANI,MTOUGUY Imane,SAILE3 Rachid
Technologies de Laboratoire , 2013,
Abstract: Chlorure d’aluminium, foetus, intestin, reins, poumons, rates gestantes.Summary: The aim of our study is to elucidate the effects of the administration of different doses of aluminium chloride during 9-13 gestation day on organs histology of pregnant rats and their offspring.We have noted that in pregnant rats, there is a change on the histological structure of intestine especially on enterocytes, nuclei and basal lamina.In kidney, we have observed a lesion in proximal and distal tubes. In lungs, AlCl3 may decrease the alveolar diameter, an inflammation with necrosis of pneumocytes notably with the dose of 200 mg of AlCl3 /kg/day.In fetuses, AlCl3 may cause a detachment between the intestinal epithelium and the underlying conjonctif and a necrosis of renal and pulmonary cells.AlCl3 has an effect more marked in mother than their fetuses. This indicates that the placenta is a selective barrier towards some components.
Survey of the Consumption of Energy Drinks and Frequency of Obesity in a Population of Academics from Casablanca  [PDF]
Imane M'Touguy, Nadia Iounes, Fatema Zehra Mahfoud, Marwa Chhail, Amine El Khatib, Rachid Saile, Souad El Amrani, Houriya Mestaghanmi
Open Access Library Journal (OALib Journal) , 2016, DOI: 10.4236/oalib.1103259
Abstract:
Background: An energy drinks supposed to give a boost of energy to the consumer. It usually contains caffeine and lot of sugar. We studied the risks associated with the consumption of these drinks, the conditions in which they are consumed and the frequency of obesity in the determination of body mass index among 195 students of the Faculty of Sciences Ben M’Sik. Methods: This is a survey conducted by students of the Ben M’sik Faculty of Sciences, Hassan II Casablanca University, during the year 2015, using a questionnaire exploring the consumption of energy drinks. Results: Our study shows 195 of surveyed students consuming energy drinks, of which 22.0% are girls and 78.0% are boys, of which 16.5% were overweight, 5.5% moderate and 2% severe obesity. 9.2% of students consume them to quench the thirst, 10.8% to bring their body energy, 7.7% for their taste, 21.5% to mitigate fatigue, 6.2% to stimulate and 44.6% for all the reasons cited. 4.6% say they associate them with tobacco, 4.0% with alcohol and 6.8% with some drugs during review periods. The consequences of poisoning these drinks can be serious health and manifest as tachycardia (3.2%), agitation or confusion (29.3%), abdominal pain (7.9%), hypertension (19.4%). These symptoms experienced are significantly higher among consumers of these drinks compared to controls. Witnesses consume either energy drinks or sugary drinks. Discussion/Conclusion: That frequent consumption of energy drinks may pose a risk and a danger to the health of consumers, hence the need for awareness especially young people against their effects. Public health organizations must also keep a close watch on this new trend.
Impact of Eating Habits and Lifestyle on the Oral Health Status of a Casablanca’s Academic Population  [PDF]
Houriya Mestaghanmi, Ali Labriji, Imane MTouguy, Fatima Zahra Kehailou, Said Idhammou, Nabil Kobb, Fatema Zahra Mahfoud, Ahmadaye Ibrahim Khalil, Souad El Amrani
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104967
Abstract:
Introduction: Bad eating habits can have serious impact on oral health. Objec-tives: To study the impact of eating habits and dental hygiene practices on the dental status of students. Methods: Cross-sectional study of 400 students aged 17 and more, from the Ben M’Sik Sciences Faculty. A questionnaire on the so-cio-economic level of the parents, the eating habits, the means of hygiene and the oral health status has been filled in anonymously by the respondents. Uni-variate and multivariate descriptive and comparative analyzes were per-formed by the software SPSS 21. Results: The population’s average age is 20 ± 1.59 years old consisted of 55% of boys and 45% of girls. The breakfast is consumed by 67% of students. 39.58% respondents consume sweetened drinks during the meals and 60% at the end of meals and 66% are snacking during the day. 92% of students say they brush their teeth. The brushing time varies between 1 and 3 minutes. 37% of students do never consult a dentist and 63% in case of dental problems. The prevalence of caries is 66%. There is a positive association between the prevalence of tooth decay and certain eating habits (sweet things consumption (p = 0.08), cakes (p = 0.018) and chocolate (p = 0.019) outside of meals). However, this correlation is negative, when the consumption of these foods is done during meals (p > 0.74). On the other hand, there was no correlation between alcohol consumption and presence of caries (p = 0.172), tobacco consumption (p = 0.319), and socioeconomic status parents (p = 0.733). Conclusion: Oral hygiene and regular monitoring by a dentist with healthy eating habits can have a significant impact on the oral status of students.
ANTENNA RELAY TELEPHONE: WHAT EFFECTS ON THE HEALTH? A survey on a casablanca population
L. TAZROUT,S. EL AMRANI,I. MTOUGUY,A. BELHOUARI
Technologies de Laboratoire , 2011,
Abstract: This study was conducted among a Casablanca population (n = 700) living or not in vicinity of cellular phone base stations through a questionnaire. The data collected were entered and processed using the sphinx Lexica which is a survey software and data analysis which includes the chi-square test. The results obtained show that there is a significant difference (p<0.05) between witnesses and people close to these relay stations for the various symptoms including insomnia, nausea, dizziness, lack of appetite, auditory disturbances and visual disturbances. In the group of people near the antennas, there are significant differences (p<0.05) of different symptoms in relation to : sex, age, distance and location relative to the base station, duration and time of exposure, and the joint use a laptop and other devices emitting electromagnetic waves.
Symptoms reported by a Casablanca population’s of mobile phone users
L. TAZROUT,S. EL AMRANI,I. MTOUGUY,A. BELHOUARI
Technologies de Laboratoire , 2011,
Abstract: This study was conducted in a Casablanca population that uses or not mobile phones (n = 700) through a questionnaire. The data collected were entered and processed using the sphinx Lexica which is a survey software and data analysis which includes the chi-square test. The results obtained show that there is a significant difference (p<0.05) between users and no-users of mobile phones for various symptoms including insomnia, nausea, dizziness, lack of appetite, auditory disturbances and visual disturbances. In the group of mobile users, there are significant differences (p<0.05) of different symptoms in relation to : sex, age, duration and frequency of use of GSM, call duration, use or not the handsfree kits and joint use of a laptop and other devices emitting electromagnetic waves.
Phenotypic and genetic diversity in Sinorhizobium meliloti and S. medicae from drought and salt affected regions of Morocco
Nadia Elboutahiri, Imane Thami-Alami, Sripada M Udupa
BMC Microbiology , 2010, DOI: 10.1186/1471-2180-10-15
Abstract: RsaI digestion of PCR amplified 16S rDNA of the 157 sampled isolates, assigned 136 isolates as S. meliloti and the rest as S. medicae. Further phenotyping of these alfalfa rhizobia for tolerance to the environmental stresses revealed a large degree of variation: 55.41%, 82.16%, 57.96% and 3.18% of the total isolates were tolerant to NaCl (>513 mM), water stress (-1.5 MPa), high temperature (40°C) and low pH (3.5), respectively. Sixty-seven isolates of S. meliloti and thirteen isolates of S. medicae that were tolerant to salinity were also tolerant to water stress. Most of the isolates of the two species showed tolerance to heavy metals (Cd, Mn and Zn) and antibiotics (chloramphenicol, spectinomycin, streptomycin and tetracycline). The phenotypic clusters observed by the cluster analysis clearly showed adaptations of the S. meliloti and S. medicae strains to the multiple stresses. Genotyping with rep-PCR revealed higher genetic diversity within these phenotypic clusters and classified all the 157 isolates into 148 genotypes. No relationship between genotypic profiles and the phenotypes was observed. The Analysis of Molecular Variance revealed that largest proportion of significant (P < 0.01) genetic variation was distributed within regions (89%) than among regions (11%).High degree of phenotypic and genotypic diversity is present in S. meliloti and S. medicae populations from marginal soils affected by salt and drought, in arid and semi-arid regions of Morocco. Some of the tolerant strains have a potential for exploitation in salt and drought affected areas for biological nitrogen fixation in alfalfa.The gram-negative bacteria Sinorhizobium meliloti and S. medicae are able to interact with roots of Medicago sativa (alfalfa) to form nitrogen-fixing nodules and survive as a free living saprophytic bacterium in the soil [1,2]. The host, alfalfa is the most important forage legume crop in the arid and semi-arid areas of North Africa. In these areas, alfalfa is grown in m
Applications analytiques des films minces de mercure protégés par du fibrinogène pour la détermination du plomb et du cadmium dans des échantillons d’eaux usées et d’eaux de mer
A Imane, ER Mama, MMA Aziz, M Coulibaly
Afrique Science: Revue Internationale des Sciences et Technologie , 2006,
Abstract: Analytical application of fibrinogen-coated mercury film electrodes for the detection of lead and cadmium in water samples The aim of this study was the development of sensor based on fibrinogen (Fbg) coated mercury film electrodes at carbon paste electrode in the perspective of in-field stripping analysis of heavy metals in complex matrix. The preparation, optimization and characterization of coatings of Fibrinogen (Fbg) for the modification of thin mercury film electrodes and its application for the detection of trace metals have been described . The modified carbon paste electrode was prepared by a simple adsorption of fibrinogen from an aqueous solution containing an adequate quantity of fibrinogen. The Mercury film was then prepared by electrodeposition through the fibrinogen coating. The experimental parameters such as concentration of fibrinogen, deposition time and deposition potential were investigated. The performance of this electrode is evaluated in a presence of different surfactants such as gelatine, albumin, SDS and Tween 20, while lead and cadmium were employed as test metal ions. Using selected conditions the limits of detection were 5.10-9 mol.L-1 and 2.10-8 mol.L-1 for lead and cadmium, respectively. Since fibrinogen coated mercury film showed the best performance and increased efficiency against surfactants when comparing to the conventional mercury film, it was used for the analysis of trace metals in environmental samples of waters and industrial effluents.
Effets de deux séquences didactiques sur la production écrite d’un texte informatif (documentaire) en FLE : cas d’apprenants de première année moyenne
Imane Terras
Synergies Algerie , 2012,
Abstract: En fran ais langue étrangère, la production écrite est une activité permanente au cours du processus d’apprentissage. Son enseignement est influencé par plusieurs recherches notamment en linguistique textuelle et en psychologie cognitive qui ont mis en évidence le fait que l’activité de lecture/compréhension peut renforcer celle de l’écriture de différents types de textes dont le texte informatif qui nous intéresse car il constitue, d’une part, un moyen important de découverte du monde et d’enrichissement des connaissances ; d’autre part, nous avons constaté que ce type de texte se réfère à un contenu peu familier aux jeunes apprenants de 1.A.M. Partant de ce postulat, nous faisons l’hypothèse que la production écrite d’un texte informatif pourrait être favorisée par deux activités : tri de texte vs questionnaire, issues respectivement de la linguistique textuelle et de la psychologie cognitive. Notre objectif est donc de repérer quelle est l’activité qui aide le plus efficacement les apprenants de première année moyenne à produire des textes informatifs
Effect of Strontium on Structure and Superficial Area of La2O3  [PDF]
Radia Imane Fertout, Madani Ghelamallah, Soufi Kacimi
Advances in Materials Physics and Chemistry (AMPC) , 2012, DOI: 10.4236/ampc.2012.21005
Abstract: Recently, lanthanum oxide doped by group IIA elements may strongly influence solid state reaction. A series of samples, noted LaSrX (where X = % atomic of strontium) have been prepared by hydrolysis, in neutral medium from La2O3 and SrCO3. These samples were calcined under air at 450?C and 1150?C then characterized by specific surface area (BET), X-ray diffraction, scanning electron microscopy (SEM), thermogravimetry (TG) and differential thermal analysis (DTA). Obtained results show that after calcinations at: 1) 450?C, the addition of strontium is without effect on surface of La2O3 and the XRD analysis revealed no interaction between lanthanum oxide and strontium carbonate; 2) 1150?C, the sintering of the samples is very important, reduction of 70% of surfaces compared to the samples calcined at 450?C; XRD results show that LaSrX are formed principally by two oxides: SrLa2O4 and La2O3, which is confirmed by SEM method. The reaction between La2O3 and SrCO3 showed three endothermic weight losses; elimination of water, a partial dehydroxylation of La(OH)3 and formation of La2O2CO3 and La2(CO3)3.
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