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Study of Some Properties of Central Carbon- Carbon Collisions at 4. 2 a Gev/C

Thesis Info

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Author

Wazir, Zafar

Program

PhD

Institute

COMSATS University Islamabad

City

Islamabad

Province

Islamabad.

Country

Pakistan

Thesis Completing Year

2010

Thesis Completion Status

Completed

Subject

Physics

Language

English

Link

http://prr.hec.gov.pk/jspui/handle/123456789/661

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727393570

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Central carbon-carbon collisions at 4.2 A GeV/c using: the experimental data coming from 2m propane bubble chamber; Dubna Cascade Model and Ultra relativistic Quantum Molecular Dynamics Monte Carlo codes have been studied in this thesis. The data has been analyzed with a new statistical method which is not sensitive to the background and doesn’t require any prior information on the dynamics of the interaction. The obtained results show that the behavior of the nearest neighbor spacing momentum distributions of particles produced from 12 CC collisions at 4.2 A GeV/c changes with multiplicity critically. A comparison of the experimental results with ones coming from the models gives a possibility/indication that the critical values can be connected with central collisions. Hence the critical values of multiplicity have been used to fix the centrality. The results obtained are independent of the prevalent models for such analysis.
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تازہ گوئی کا رجحان(میر و سودا کا عہد)

موضوع1:تازہ گوئی کا رجحان ( میر وسودا کا عہد)
میر تقی میر:
میر تقی میر اردو غزل کا نمائندہ شاعر ہے۔آج تک اس سطح کا کوئی شاعر ہمیں نہیں مل سکا۔ ان کی شاعری کے چھے دیوان چھپے۔ حال ہی میں ان کا ساتواں دیوان دریافت ہوا ہے۔ ڈاکٹر معین الدین عقیل صاحب نے مرتب کرکے یہ دیوان شائع کیا ہے۔
میر کا دور:
میر کا دور 1722ء سے 1810ء تک ہے اس میں کچھ اختلافات پائے جاتے ہیں۔ 1810ء میں ان کی وفات ہوئی میر کا زمانہ ایسا دور تھا جس میں ہر طرف بے چینی تھی۔دلی جو اس وقت مرکز تھا دارالحکومت تھا وہاں بہت سارے بیرونی حملہ آوروں نے بہت دفعہ حملہ کیا اس کی اینٹ سے اینٹ بجائی۔وہاں کے لوگ برباد ہو گئے ،قتل و غارت ہوئی ،خون بہا ،گھر اجڑ گئے ،اپنے بچھڑ گئے۔ان حالات کے اثرات اس وقت کے شعرا ء پر بہت گہرے پڑے۔ ان میں میر کا نام نمایاں ہے۔ میرکے والد کی وفات کے بعد ان کے چچا امان اللہ نے ان کی دیکھ بھال کی۔ ان کے چچا کی وفات کے بعد چچازاد بھائیوں نے گھر سے نکال دیا۔معاشی حالات بھی خراب تھے الغرض ایسے حالات میں میر بھٹکتے رہے۔مشکل حالات کا سامنا کرتے رہے۔ اس کے اثرات ان کی شاعری میں ہمیں نمایاں طور پر نظر آتے ہیں میر جیسا حساس شخص ان تکلیفوں میں مبتلا ہونے کے باوجود ان میں قنوطیت نظر نہیں آتی۔ ان کے دور میں مایوسی کا پہلو نظر نہیں آتا درد تو یقیناً ہے لیکن اس میں مایوسی نہیں۔ انہوں نے تہذیب کا بہت خوبصورتی سے مشاہدہ کیا اور اس کا عکس ان کی شاعری میں نظر آتا ہے۔ البتہ ان کی شاعری میں موت فنا کا ذکر زیادہ آتا ہے لیکن امید کی رمک ان کی شاعری میں جا بجا...

Momentum of Ajwa Dates towards Cardiovascular Diseases Momentum of Ajwa Dates towards Cardiovascular Diseases

Cardiovascular diseases (CVDs) are the top most cause of morality around the world.  It is predicted that the number casualties from CVDs will increase to more than 24 million till 2030 people. Medicinal plants provide the major raw materials for medicine preparations. They are gaining high consideration due to their effectiveness and increasing cost of modern medicines. Many successful drugs are plant based, including aspirin from the willow bark, morphine from opium poppy, quinine from the cinchona bark, and digoxin from the foxglove. According to World Health Organization (WTO), ~70% to 80% of people around the world rely on herbal sources for the treatment of their disease. Plant sources are endorsed due to the fact that they contain an optimal amount of  antioxidants and phytochemicals that help to avoid and treat many diseases. Phoenix dactylifera L. Particularly Ajwa variety, is the most rich in phytonutrientsthat can benefit to control many cardiovascular diseases. It contains6 vitamins (vitamin A, C, B1, B2, B3 &riboflavin), high amount of fibers, Potassium, Magnesium and 23 amino acids which play a healthy role towards hypertension, muscular contractions, and blood pressure control. It has been studied that Niacin (B3) helps to control cholesterol and low density lipoprotein levels (LDL), as high cholesterol is the one of the main cause of cardiovascular diseases so, Ajwa could be a vital regulatory source. According to the findings of Sabbah M. Et al, Ajwa extracts significantly improved the DNA integrity and also reduced the cardiomyocytes congestion, edema and the cellular stress wielded on cardiac muscles resulting the restoration of cardiomyocytes architecture in Doxorubicin (DOX) induced cardiotoxicity in rats. Research done by Alqarni et al, proves that Ajwa extracts has successfully decreased the LDL‐C, VLDL‐C, and triglycerides concentration. Additionally, treatment with ajwa pulp also improved the HDL‐C level and antioxidant enzymes activity. In another invivo study, Ajwa preparation has successfullydecreased the diclofenac-induced pulmonary and hepatic instabilities. Vitamin-K play important role in blood coagulation, and in case of anticoagulant therapy, activity of vitamin-K controlled by drugs (warfarin) that sometimes causes serious side effects. According to the reported data, Salicylic acid is the vitamin-K antagonist and has capability to block the action of vitamin K during the coagulation pathway. Dates contain ~3.75 to 4.50 mg/100 g of salicylic acid. Thus, providing anticoagulation effect too. So, the limelight of the reported data provides an enough reason that plants can be used as primary source of drug designing for the cardiovascular disease. They hold true momentum to address the increasing healthdiseases, which cannot be lost to distraction or apathy. Fight against the burden of CDVs, is affecting all countries and specially, under developing and the poor countries.

Impact of Leaders Motivating Language on Employees Job Performance With Mediation of Job Satisfaction and a Ective Commitment

Leadership communication plays a pivotal role in the e ectiveness and e ciency of an organization. Successful organizations always remain concerned about every aspect of their leadership and the verbal communication being used by the leaders remains the top agenda of these organizations. This research study endeavours to investigate the model based on Sullivan''s (1988) Motivating Language Theory. This study investigates the relationship and impact that the three components, i.e.; 1) Direction-Giving Language,2) Empathetic Language, and 3) Meaning-Making Language use on job performance. It also analyse the mediating role of job satisfaction, and a ective commitment between the use of all three components of motivating language and job performance. A sample of all levels of teaching stafrom all public and private universities in Pakistan was drawn based on the non-probability convenient technique. A total 770 questionnaires were administered to the target respondents; in return, 633 questionnaires were received and then 577 complete questionnaires in every aspect were considered for data analysis. At the dyadic level, the teachers were asked to tap their perception regarding the use of all three components of motivating language by their Deans/HoDs and also to provide information regarding their own level of job satisfaction and a ective commitment. In response, to a six-item scale of job performance, the Deans/HoDs provided the perceived evaluation of the performance of their teaching stamembers. The Correlation Coe cient Test was applied to ascertain the relationship between the studied variables. The use of direction-giving and empathetic language by Deans/HoDs has a positive significant relationship with the teachers'' a ective commitment, but the less signi cant negative relationship was found with meaning-making language. Direction-giving and empathetic language used by the Deans/HoDs has a positive signi cant relationship with the teachers'' job satisfaction, but negative relationship with the use of meaning-making language. The results of CFA and SEM indicate that job satisfaction and a ective commitment mediate the relationship between the use of direction-giving language and x job performance and also between the use of empathetic language and job performance. However, job satisfaction and a ective commitment do not mediate the relationship between the use of meaning-making language and job performance. Thending generates more interest in enhancing communication patterns used in the context of the university environment that develop more job satisfaction and job performance of the faculty members. This also added to the literature of leadership communication in another cultural environment. The study recommends that additional testing to be carried out with the longitudinal approach in order to check its further generalization. This study also recommends more leadership-development programmes to be imparted for enhancing the dynamics of verbal communication used by institutional leaders. Key words: Motivating language, Direction-giving, Empathetic, Meaning- making, Job satisfaction, A ective commitment, Job performance.