JFAS_Vol 09 N 02

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Study The Rate Of Fertility And Risk Factors Of Schizophrenia In Najaf, Iraq
(University of Eloued جامعة الوادي, 2017-01-01) Ajeena Ezzate, H.
This study is designed to investigate the main risk factors, which increased the incidence of schizophrenia and the rate of fertility in patients measuring sex hormones (testosterone and estrogen) and prolactin hormone. The aim of study was to evaluate the fertility rate and risk factors of schizophrenia. Blood samples were collected for measuring the hormones from 108 individual divided groups: Patients’ group that contain 78 patients and a control group, which included 30 healthy persons. The results showed that schizophrenia was higher in male than female. Tobacco smoking and family history have significantly risk for most patients which lived in urban areas. There was statistical significance (P ≤ 0.05) in the testosterone hormones between patients group and control group. It is concluded that patients were suffering from hypogonadism, in contrasts with the prolactin hormone, which has been indicated significant increasing of schizophrenia.
Sequence Crystallization During Isotherm Evaporation Of Southern Algeria Chott Baghdad Natural Brine
(University of Eloued جامعة الوادي, 2017-05-01) Zatout, M.; Hacini, M.; Hamzaoui, A. H.; M’nif, A.
Southern Algerian's natural brine sampled from chott Baghdad may be a source of mineral salts with a high economic value. These salts are recoverable by simple solar evaporation. Indeed, during isothermal solar evaporation, it is possible to recover mineral salts and to determine the precipitation sequences of different salts as a function of the chemical composition and the density of the brine. In this study, the variation of ionic composition of concentrated brine during isothermal evaporation was measured; then the experimental pathway of the point representing its composition on the oceanic fivefold diagram Na+, K+, Mg2+, Cl-, SO42-//H2O was plotted. In order to follow the precipitation sequences of mineral salts, during solar evaporation at 35°C, X-Ray diffraction was performed on the precipitated and removed salts from the brine during evaporation.
Development Of An Objective Method For The Assessment Of Nylon Sutures Knot Security
(University of Eloued جامعة الوادي, 2017-05-01) Turki, S.; Ben Abdessalem, S.
A perfect wound healing requires sutures having many handling characteristics such as good knot security and flexibility. Knot security characteristics are influenced by a variety of physical and mechanical parameters including the friction coefficient, bending rigidity and compressibility of the suture. Knot security and other handling characteristics are evaluated only by surgeons during the implantation. There are no standard tests to evaluate these qualities. We present in this paper an objective method to assess knot security of nylon sutures. This method is based on a fuzzy-logic model which correlates suture physical parameters and the knot security.
Effect Of Urban Albedo Surfaces On Thermal Comfort
(University of Eloued جامعة الوادي, 2017-05-01) Mansouri, O.; Bourbia, F.; Belarbi, R.
Thermal comfort was and remains a major concern of the designers, makers, planners, climatologists and others, seeking at all costs to ensure the well-being, good health and comfort of citizens in both outdoor and indoor areas. They have addressed this issue in order to identify the main causes that generate the warming of urban areas and therefore contribute to the degradation of the exterior and interior thermal comfort of the inhabitants. It turns out that the reflectivity of materials known as the albedo, plays a leading role in this degradation. A numerical study was carried out to assess the thermal comfort of citizens by applying reflective materials for roofs, facades and floor. The results show that the reflective light paints help in moderating the microclimate, contrariwise, they participate in the degradation of thermal comfort.
Phytoecological Study Of Tetraclinis Articulata In The Woodland Of Beni Affene, Sdamas Chergui (tiaret, Algeria)
(University of Eloued جامعة الوادي, 2017-05-01) Azzaoui, M. E.; Maatoug, M.; Berrayah, M.
The Mediterranean flora is definitely considered as an exceptional diversity that deserves particular attention to be conserved. This work aims to quantify the floristic diversity of Tetraclinis articulata of Beni Affane located at the woodland of Sdamas Chergui (Tiaret, Algeria). The factorial analysis of correspondences allowed us to jointly process the floristic and ecological variables, and confirm that there is presently an original floristic facies of Tetraclinis articulata. This study area contains 13 families and 21 species, where the dominating biological type is Chamaephytics (52 %). We have described as well five frequent species: Tetraclinis articulata 33 %, Pistacia lentiscus 11 %, Globularia alypum 8 %, Phylleria angustifolia 9 %, Rosmarinus tournefortii 15 %.
Model For Optimum Design Of Standalone Hybrid Renewable Energy Microgrids
(University of Eloued جامعة الوادي, 2017-05-01) Abdulkarim, A.; Abdelkader, S. M.; Morrow, D. J.
An optimization model for the design of a hybrid renewable energy microgrid supplying an isolated load has been developed. This is achieved in two steps. The first step developed a linear programming model that uses the average pattern of demand, wind, and solar energy to determine the optimal configuration. The second step used a clustering algorithm to investigate the methods of improving the reliability of the system. These include increasing the storage capacity and increasing the rated power of the wind energy conversion system (WECS) or solar energy conversion system (SECS). The results have shown that increasing the capacity of storage is the most economical way of improving the reliability of the system. The model has been verified through applications to a test microgrid of common size. The results have shown a 70% reduction in gas emissions and an 80% reduction in energy costs.
Physical And Mechanical Behaviour Of A Roller Compacted Concrete Reinforced With Polypropylene Fiber
(University of Eloued جامعة الوادي, 2017-05-01) Benouadah, A.; Beddar, M.; Meddah, A.
In order to study the behaviour of a roller compacted concrete (RCC) reinforced with polypropylene fiber, six types of RCC were made with different content of fibers (0, 0.5, 1, 1.5, 2 and 2.5 Kg/m3). The physical parameters are the density, the workability, the shrinkage and the water absorption. For the mechanical parameters; the performances such as the compressive strength and the tensile strength (3 point bending and splitting) has been studied. The results show that the RCC reinforced with fibers present the better performances in terms of strength and physical behaviour. The results obtained show the positive effect of the polypropylene fiber addition on the mechanical strength, which increases about 23% for the mixture with 1 Kg/m3. For the physical properties, there is a decrease in the density and workability and an improvement in the water absorption proportional with the addition of polypropylene fiber. In addition, we conclude the positive effect of polypropylene fiber on the kinetics and development of the shrinkage. In this study, the best physical and mechanical performance was being observed in the mixture with 1 Kg/m3 of polypropylene.
Numerical Simulation Of Solar Cells Besed Czts Buffer Layer (zno1-xsx) Using Scaps-1d Software
(University of Eloued جامعة الوادي, 2017-05-01) Fadili, S.; Hartiti, B.; El Khalidi, Z.; Kotbi, A.; Ridah, A.; Thevenin, P.
Cds buffer layer has many advantages such as large bandgap, and the carrier density. Otherwise, the presence of cadmium is an inconvenient. Research work, are shifted on the possibility of replacing CdS by a buffer layer devoid of cadmium. This manuscript presents the numerical study, using SCAPS-1D program, the effects of sulfur content in the buffer layer Zn (O,S) on the electrical parameters of the solar cell ZnO: Al / i-ZnO / Zn (O, S) / CZTS /. Changes in the band gap and electron affinity of Zn (O, S) were calculated from the law of Vegard. The numerical results of the thickness of the absorbent layer CZTS equal to 2.5µm, show that from the sulfur content equals to 45% we can find the same results with CdS, an efficiency varies slightly, about 19%.
The Bipolaron Model In Transport Properties Of Yba2cu3oy Superconductor Prepared By Adding Pr2co7 Magnetic Nanoparticles
(University of Eloued جامعة الوادي, 2017-05-01) Mani Kongnine, D.; Hamrita, A.; Napo, K.
Samples with the addition of ferromagnetic nanoparticles of Pr2Co7 on YBa2Cu3Oy (YBCO) polycrystalline superconductor were prepared by the standard solid state reaction method. The analysis of x-ray diffraction patterns by Rietveld refinement indicates orthorhombique to tetragonal phase transformation and oxygen rate reduction from x=0.3% of Pr2Co7 content. Resistivity at room temperature increases as Pr2Co7 content increases. The normal state resistivity versus temperature was analyzed properly by the bipolaron model. It suggested the increase of mobile charge localization with Pr2Co7 content.
Capnodis Tenebrionis (linnaeus, 1758) Larval And Nymphal Lodges Dispositions According To Physico-chimical Composition Of Prunus Domestica And Prunus Cerasus
(University of Eloued جامعة الوادي, 2017-05-01) Brahimi L. .; Djazouli Z. E.
Capnodis tenebrionis is a Coleoptera presented as a xylophagous insect specialist, common of the Rosaceae orchards. The physico-chemical quality of host plants can provide useful information to define the most appropriate time for control of this pest. From this perspective, the present study focused on the positions of larval lodges of C. tenebrionis on its hosts Prunus spp. The results showed that the larval availability depend on water soluble and soluble proteins in spite of the total sugars on Prunus domestica and of proline on P. cerasus, respectively. The high density of P. cerasus wood appears to have favored the trophic orientation of Capnodis larvae to P. domestica. Therefore, understanding the life history traits of C. tenebrionis will be necessary to improve its monitoring that appears to be influenced by biotic factors.
Phytochemical Study And Antibacterial Activity Of Different Extracts Of Pistacia Lentiscus L Collected From Dahra Region West Of Algeria
(University of Eloued جامعة الوادي, 2017-05-01) Missoun, F.; Bouabedelli, F.; Benhamimed, E.; Baghdad, A.; Djebli, N.
The purpose of this study was to investigate the phytochemical proprieties, antioxidant and antibacterial activities of different extracts of Pistacia lentiscus on two pathogenic bacteria. The concentration of total phenols was analyzed using Folin-Ciocalteu’s method. Exracts of plant were evaluated for their antimicrobial activities against Staphylococcus aureus and Esherichia coli using the agar disk diffusion method and the minimal inhibitory concentration. The phytochemical study revealed the presence of major bioactive chemical constituents in different extracts of P. lentiscus (flavonoids, alkaloids, saponins, tannins, terpenoids, glycosides and steroids). Results showed that this plant has antioxydant activity and high quantity of total phenols and flavonoids. Antibacterial activity of the aerial parts of P. lentiscus against tested bacteria has shown that Gram-negative strains were more resistant compared to the Gram- positive ones. We can conclude that Pistacia lentiscus from Dahra region under investigation can be a potential source of useful drugs.
Droughts In Semi-arid Cereal Regions Of Algeria
(University of Eloued جامعة الوادي, 2017-05-01) Smadhi, D.; Zella, L.; Bachir, H.
The droughts in the semi-arid Algeria’s cereal regions are evaluated by studying the average monthly rainfall, from September to June, over the period (1941-2011), based on the first-order Markov chain. This method traces rainy and dry days, cumulative rainfall and the probability of receiving rainfall above the thresholds of 0,1, 5, 10, 20 and 30 mm, in conjunction with the cereal development cycle. The rains analysed showed that the distribution of rainy days at the chosen thresholds did not exceed the variable averages of 6 to 9 days per month. These days are characterized by random cumulative rainfall, with probabilities fluctuating between + 40% and + 80%. Hard droughts affect seeding dates and yield factors for rainfed cereals.
Contribution Of G.i.s. For The Survey And The Management Of Water Resources In The Basin “benhandjir – Tirkount” (ain Sefra) – Mounts Of Ksour - Saharian Atlas – Algeria
(University of Eloued جامعة الوادي, 2017-05-01) Rahmani, A.; Bouanani, A.; Kacemi, A.; Baba Hamed, K.
This work relates to the space numerical data processing, containing information having a relationship with the study and the management of the water resources of the basin of « Benhandjir – Tirkount » (Ain Sefra) characterized by his principal aquifer system of the lower Cretaceous sandstone. The study aims to geographical information system (GIS). The adopted methodology is based on two steps. The first approach practical was to reconstitute the aquifer geometry and study of the hydrodynamic and hydrochemical parameters. Analysis of an important variation of the flow and mineralization helped highlight the leading role hydrogeological fault “Ras Touil-Ain Sefra”. The second approach methodological, elaboration from the thematic analyses the synthetic map will serve as a support to a better approach for the management and to identify the zones that are most favourable to wells for the drinkable water, and the agriculture.
Synthesis Of Mcm-41 Nanomaterial From Algerian Bentonite: Influence Of Synthesis Ph
(University of Eloued جامعة الوادي, 2017-05-01) Ali-dahmane, T.; Brahmi, L.; Hamacha, R.; Villieras, F.; Bengueddach, A.
Mesoporous materials of the MCM-41 type were synthesized from Algerian bentonite as an aluminosilicate source without the addition of pure silica and aluminum reagents. The samples were synthesized under hydrothermal condition using cetyltrimithylammonium bromide (CTAB) as surfactant. The influence of initial synthesis pH on the material properties of as-synthesis MCM-41 samples was studied at different temperatures of crystallization. The samples were characterized using several techniques e.g. X-ray diffraction (XRD), N2 adsorption-desorption and transmission electron microscope (TEM). The experimental results showed that bentonite can be used as an aluminosilicate source for the synthesis of Al-MCM-41. By decreasing the synthesis temperature of crystallization, it is necessary to decrease the synthesis pH value to form the best ordered hexagonal phase and eliminate the lamellar phase.
Prediction Of Diagenesis And Reservoir Quality Using Wireline Logs: Evidence From The Upper Triassic (raethian) Fluvial Reservoir Tags - Toual Field, Gassi Touil Area, Se Algeria
(University of Eloued جامعة الوادي, 2017-05-01) Mazouz, E.; Hamimed, M.; Yahiaoui, A.; El-ghali, M. A. K.
Reservoir quality is mainly controlled by environment deposit type and diagenesis processes. To investigate such subject we usually proceed to microscopic techniques. Absence of outcrops and missing of core samples let us use conventional wireline logs and core lab measurements as primary data. Direct lecture of well logs calibrated by core photos and wellsite description, well logs correlation and cross plots were our main methodology axis. Target of this study is the fluvial Shaly Sandstones of Upper Triassic (Rhaetian) reservoir (abreviated in French; TAGS) located in Toual field – SE of Algeria. The present investigation confirms the absence of clean sandstone levels in the studied reservoir. It detects also the presence of halite and clays (Illite) as cements in sandstone. The influence of illite on permeability was confirmed whereas porosity is less affected.
Petroleum-hydrocarbons Biodegradation By Pseudomonas Strains Isolated From Hydrocarbon-contaminated Soil
(University of Eloued جامعة الوادي, 2017-05-01) Benchouk, A.; Chibani, A.
Many indigenous microorganisms in water and soil are capable of degrading hydrocarbon contaminants. In this study, two bacterial strains were isolated from a contaminated soil of a refinery of Arzew (Oran). The isolated strains were identified as Pseudomonas aeruginosa (P3) and Pseudomonas fluoresens (P4). The capability of these isolates to degrade petroleum was performed by measuring the optical density, colony forming unit counts (CFU/ml) and concentration of total petroleum hydrocarbons (TPH). Degradation of Isomerate by these isolates was analyzed by gas chromatography with flame ionization detector (FID). Results indicated that the isolates can use petroleum as carbon source. Isolates P3 has the highest capability of hydrocarbons degradation.
Thermal, Electrochemical And Mechanical Properties Of Shape Memory Alloy Developed By A Conventional Processing Route
(University of Eloued جامعة الوادي, 2017-05-01) Ahmad, T.; Malik, A. N.; Raza, S. S.; Kamran, M.; Manzoor, M. U.; Salman, A.; Hussain, F.; Riaz, F.; Ahmad, R.; Akhtar, M. N.
A Cu based shape memory alloy (Cu-Al-Ni) having a composition 83% Cu, 14% Al, 3% Ni, was developed and studied to determine the shape memory effect. Powder of Cu, Al and Ni was melted in a pit furnace at about 15500C, and casted alloy was heat treated at 8500C for a period of 50 minutes followed by water quenching. Microstructure characterization of alloy (Cu-Al-Ni) was carried out to determine the pre-quenched (cast structure) and quenched martensitic structure. The microstructure analysis of developed samples showed needle like structure of quenched martensite after heat treatment. It has a very good resemblance with structure of casted shape memory alloy obtained from the vacuum induction process. The Vickers hardness test was also performed. Quenched microstructure with improved hardness than pre-quenched structure was observed.
Chronic Dehydration Affects Hydroelectrolytic Equilibrium And Adrenal Gland Morphology In Wistar Rat: Comparison With Gerbillus Tarabuli
(University of Eloued جامعة الوادي, 2017-05-01) Dekar-madoui, A.; Aouichat, S.; Touati, H.; Ouali-hassenaoui, S.
Shortage of water supply is the most stressful condition that can meet man and animals. Since the adrenal gland plays a pivotal role in the stress response, the objective of this work is to study, in the male Wistar rat, the repercussions of chronic dehydration on adrenal gland structure compared to that of a desert rodent: Gerbillus tarabuli. Adults and male Wistar rats and gerbils were divided into: i) control rats (n=8) given free access to tap water); ii) dehydrated rats (n=8) given 2% NaCl solution ad libitum for 7 days and (iii) G.tarabuli (n=6) given barely seeds ad libitum without access to water. Chronic dehydration caused strong adreno-chromaffin cells degranulation in rats. For the gerbils, adrenal zona fasciculate and medulla features suggest respectively an increased production and release of glucocorticoides but a basal stress hormones release. These results suppose that shortage of water in arid environment does not represent a stress factor for this species.
Mapping Of Land-cover From Remotely Sensed Images In The Valley Of Oued Righ (algerian Southeast)
(University of Eloued جامعة الوادي, 2017-05-01) Boussaada-maabdi, N.; Bousnoubra-kherici, H.; Kherici, N.; Hammad, N.
The aim of this work is to analyze the evolution of arid areas by remote sensing and to assess the extent of landscape changes over time. The study consists of a multitemporal analysis of LANDSAT TM and ETM + satellite images from 1987, 2000 and 2009 covering the Oued Righ valley in south-eastern Algeria. Numerous colored compositions carried out, allowed us a very good visual characterization of the surface states. Supervised classification charts, carried at the second step, are of good quality as indicated by the precision indices and Kappa indices from the various confusion matrices. The change maps obtained by diachronic analysis of the classifications carried out show a clear modification of the natural landscape with a significant increase in the surface of the water, the number of the population and a reduction of the palm groves.
Synthesis, Quantum Chemical Computations And X-ray Crystallographic Studies Of A New Complex Based Of Manganese (+ii)
(University of Eloued جامعة الوادي, 2017-05-01) Benyza, N.; Messai, A.; Hamdaoui, A.; Lanez, T.; Sayin, K.
The ligand oxime, C7H9N5O2, was Synthesis and characterises with different characterization methods such as 1H NMR and FTIR spectroscopy. The complexation of this ligand with manganese (II) perchlorate yielded pink crystals of formula [Mn (C7H9N5O2)2]2+, 2[ClO4]-, which crystallized in the monoclinic space group P21/n with a = 12.824(3), b=13.799(2), c=15.441(4)Å, β = 100.17(2), and Z = 4. The complex consists of cations (+II) and two perchlorate anions, the cations part existing in a slightly distorted octahedral complex. Computational investigations of manganese (II) complex are done by using the DFTmethod with B3LYP functional in conjunction with the 6-31G(d,p) and lanl2dz basis sets in the gas phase imposing the C1 and C2v symmetries.

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