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رسائل ماجيستير English 2007

EVALUATION AND EXTRACTIONE OF MAXIMUM PHOSPHORUS CONTENT FROM MIXED SAMPLES OF PHOSPHATE ROCKS ORE FROM KURUN AREA, NUBA MOUNTAINS, SUDAN

آدم موسي محمد, محمد جمعة محمد عيد أحمد, مصطفي محمد أحمد

كلية العلوم والتقانة-جامعة النيلين · السودان

This study was carried out in order to estimate the concentration ofessential and trace elements and the total content of phosphorus and uraniumin phosphate rocks and to investigate the possibility of using Sudanesephosphate ores as fertilizer.In this study 45 samples of mixed samples of rock phosphate from theeastern part of Nuba Mountains area, western Sudan namely Jebel Kurun nearAbu Jebaiha town was analyzed.Two different types of techniques namely atomic absorptionspectrometry (AAS) and UV spectrophotometry were used for measurementof concentrations of 16 elements in phosphate rocks. The mean values ofconcentration of the elements in Kurun phosphate were found to be:(Na:0.500%), (K:.0.525%), (Mg:O.425%), (Ca:l1.845%), (Ni:0.l25%),(SiO;:22.865%), (Al:18.030%), (Fe:7.300%), (Ti:0.095%), (Mn: 420ppm),(Zn: 570ppm), (Cu: 281ppm), (Pb; 275ppm), (Co: 300ppm), uranium13 lppm. ARock phosphate ores mixed samples were analyzed for their totalphosphorus content measured as P2O5% using colorimetry. The averageconcentration of total phosphorus was found to be 24.8%. The percentages aresuitable for using the ore for production of fertilizer or phosphoric acid. "The trace uranium level content was found to be l31ppm; this range isreasonable when it is compared with similar data for phosphate ore fromdifferent areas in the world. The results obtained were compared with the datafrom literature and they showed a good agreement. The best conditionsneeded to obtain the highest percentage of available phosphorus, which is111

ماستر (LMD) Arabic 2022

الإغتراب النفسي وعلاقته بفاعلية الذات لدى المراهقين المستعملين لوسائل التواصل الإجتماعي: دراسة ميدانية لدى تلاميذ ثانوية شادلي بن جديدــ سبسب

بلقاسم جقاوة, جديد عبدالحميد

كلية العلوم الاجتماعية والإنسانية-جامعة غرداية · الجزائر

This study aimed to identify the manifestations of psychologicalalienation and its relationship to self-efficacy among secondary schoolstudents, at Shazli Bin Jadid Sebseb High School, where the sampleconsisted of (145) male and female students, and a measure ofpsychological alienation was used by Dr. Statistical processing wasdone by the package (SPSS22.0). The study reached the followingresults: There is a relationship between psychological alienation andself-efficacy among adolescents who use social media. There are nostatistically significant differences in the degrees of psychologicalalienation due to the two variables (gender and educational level).There are no statistically significant differences in the degrees of self-efficacy due to the two variables (gender and educational level).

ماستر (LMD) French 2021

Normes et pratiques de l’AMP face à l’infertilité féminine réalisées au centre HAYET de fertilité CHERAGA

Cylia Ammar Khodja, M. Baheddi , N. Daoudi Zerrouki, Siham Khodja

كلية العلوم البيولوجية والزراعية-جامعة مولود معمري - تيزي وزو · الجزائر

Au 20ème siècle, la recherche scientifique a connu de grandes avancées. L’assistance médicale à la procréation (AMP) est l’un des domaines qui a bénéficié de ces progrès. Le but de notre travail est de mieux connaitre les principales causes de l’infertilité féminine au sein de la population algérienne, la recherche de la performance des techniques pratiquées pour le traitement des couples infertiles, et les facteurs cliniques et biologiques qui conditionnent leur succès. Nous avons réalisé une étude de dossiers de patientes inscrites auprès du centre de fertilité HAYET Alger entre 2019 et 2021, et ayant bénéficié de techniques de procréation médicalement assistée et ce pendant une période d’un mois. Le nombre de cas retenus était de 107. Parmi les résultats marquant nous citons en l’occurrence : l’âge moyen des patientes était de 36,01 ans, l’infertilité était dans 65% des cas primaire 35% des cas secondaire avec des extrêmes allant de 6 mois à 18 ans. Le SOPK était la cause la plus fréquente avec un taux qui atteint 36,11%. Les cycles entretenus ont adopté dans 94% des cas l’injection intra cytoplasmique de spermatozoïde (ICSI) comme technique et dans 6 % des cas une insémination intra utérine (IIU). Toutes les tentatives de l’ICS ont été réalisées après stimulation ovarienne ; les protocoles antagonistes étaient les plus utilisés. Globalement le taux de grossesse selon la technique était de 93% pour l’ICSI et 7% pour l’IIU. Le taux de grossesse chez les femmes qui sont âgées de moins de 35 ans était de 49%.

رسائل ماجيستير Arabic 2003

العدالة الضريبية في مشروع قانون ضريبة الدخل الفلسطيني

عاطف علاونة, عبد الرحمن قاسم إبراهيم دقه

كلية الدراسات العليا-جامعة النجاح الوطنية · فلسطين

This research aims at achieving and spreading tax values among tax payers and discussing tax equivalence which Palestinians aims at achieving through applying new laws and studying it's a facts on the spiritual settlement among them it also raises up the trust-level between tax payers and The country. The researcher reviewed the related literature, which helped him in setting the theoretical framework of the research, which hopefully will come out into being in the future. The research consists of the following:The introduction which dealt with the historical development of the concept of taxation, the importance of the income tax in the modern monetary systems and the historical background of the income tax in Palestine.Chapter one dealt with the standards of the taxation justice, the concept of taxation justice, the taxation generality — both financial and personal, the tax character represented by due exemption to the minimum level of living, the income load , reduction on family burden and finally the difference in the tax average according to the income source , applying the ascending tax system , the taxation duality and the escape from paying taxes .Chapter two dealt with the limitations on the taxation justice in the Palestinian bill of the national income. The revenues covered by taxes, productive expenses, tax exemptions, tax averages and their harmony with the taxation justice represent this.Chapter three dealt with the tools of realizing the taxation justice. These are represented by taxation law, tax administration, auditing, judgment and procedures to insure justice for the tax payer and the administration as well.Recommendations and aspirations in the field of tax legislation and the fairness of the clauses of the Palestinian tax Bill concluded the research. The research recommends the following to bridge the gaps in the Palestinian tax Bill:1. Entering more legal texts characterized by clarity and flexibility to ensure correct application which leads to the treasuries getting its due sums on time. The taxation justice would be realized through the aid of experienced workers in this field and involving the private sector and university teachers.2. Imposing taxes on all sources of income in principle and exempting some as an exception as the legislator sees it convenient. This agrees with the principles of the taxation philology. The bill of law mentioned these in general and as a result many income resources have been exempted from taxes.3. Adopting the principle of advance payments which meets the suitability, aware of the fact that the settled bases in taxation says that the tax is generated through the generation of the revenue itself. The estimation is only an explorer not a founder.4. Establishing a resume court of law because all staff is specialized in the taxation field. It also hastens setting all tax issues instead of the court of law suggested by the bill of law, as it deals with civil issues as well.5. Ratifying the estimation decisions and accepting the annual report by the manager or his delegate. Decisions should not be compulsory before Passing them. This ensures the correct and safe application of these decisions.6. Limiting the expenses as allowed generally and specifically to generate income. Precise and obvious terminology should be introduced to avoid any misunderstanding or disagreement in applying the legal texts. The absolute and the conditioned deductions should not be distinguished but they should be reworded in one item in the suggested bill of law.7. Setting a deadline for setting all issues between the estimator and the official representing the minister. This comforts the taxpayer, saves time and expenses.8. Including the agricultural income in the tax process. This includes the watered agriculture, the green houses, livestock, poultry and bees. The cultivated area and the capital used should be specified. Total exemption from taxation would be a bias in favor of the agricultural income.9. Forcing all those accountable to submit a tax statement within the legal period by book keeping excluding the employees who have no other source except their jobs.

رسائل ماجيستير English 2006

Hydrochemistry of the Natuf Drainage Basin Ramalllah / West Bank

إبراهيم شلش, مروان غانم

كلية الدراسات العليا-جامعة بيرزيت · فلسطين

This study contains hydrochemical data on the Natuf drainage basin conducted between dry seasons of 2003 to wet season of 2005. The Natuf drainage basin located in the western hill of Ramallah district is about 200km2. The area contains many springs that emerge from local perched aquifers and outcrops from a limestone and dolomite limestone formations. This study aims to add more information about hydrochemical parameters and the chemical changes in the spring’s water between dry and wet seasons and to locate possible sources of pollution and their effect on the water quality of spring’s water for domestic and agricultural uses. The study involved collection and analysis by conventional and available instrumental methods for the hydrochemical parameters of water from twelve springs before and after recharge. Water samples of runoff from two places in eastern and western parts of the study area were collected and analyzed as well. Most of the springs in the study area are of good water quality for domestic and agricultural uses. Variations in the chemical composition between dry and wet seasons, and from one spring to another, were observed. Springs located near populated areas and close to agricultural activities show higher values of EC, SSP, SAR and TH. These springs contain uncountable colonies of TC and FC. Trace amounts, within the Palestinian standard limits, of cadmium, chromium, cobalt and lead are found in some springs; while concentrations of iron and zinc that were detected in springs located near populated areas are higher, but within the Palestinian standard limits, than other springs. II Water types of Ein Musbah, Al Alaq and Ein Arik El Tehta are of earth alkaline with increased portion of alkalis with prevailing bicarbonate and chloride in wet and dry seasons. Other springs show variation in water type between earth alkaline with prevailing bicarbonate in the wet seasons to earth alkaline with prevailing bicarbonate and chloride in the dry seasons. Water genesis in the springs of the Natuf drainage basin is affected mainly by water- rock between water with the mineral phase of calcite, dolomite and aragonite, which are the main constituents of the lithological formations of the recharge area. Water genesis in springs located near populated areas is affected also by mixing with wastewate

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EVALUATION AND EXTRACTIONE OF MAXIMUM PHOSPHORUS CONTENT FROM MIXED SAMPLES OF PHOSPHATE ROCKS ORE FROM KURUN AREA, NUBA MOUNTAINS, SUDAN آدم موسي محمد, محمد جمعة محمد عيد أحمد, مصطفي محمد أحمد رسائل ماجيستير English 2007 فتح ←
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Normes et pratiques de l’AMP face à l’infertilité féminine réalisées au centre HAYET de fertilité CHERAGA Cylia Ammar Khodja, M. Baheddi , N. Daoudi Zerrouki, Siham Khodja ماستر (LMD) French 2021 فتح ←
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