Topics in Stochastic Analysis and Applications to Finance

This research is concerned with the existence  a relationship between  Stochastic Differential Equations  (SDEs), Backward Stochastic Differential Equations  (BSDEs)  and Partial Differential Equations  (PDEs). This research includes a major application of stochastic analysis, we study about applications to mathematical finance, and particularly, options as an example of financial derivatives and Black-Scholes method

Mathematical modelling and computer simulations of induced voltage calculations in AC electric traction

EThOS - Electronic Theses Online ServiceGBUnited Kingdo

Some Aspects of the Doctrine of Subrogation in Insurance law

The concept of insurance began to spread since the Eighteen century due to its importance in our daily, economic and social life. Its own principles began to be adopted till it has became a law. One of these principles is the doctrine of subrogation. By this doctrine the insurance company is being able to subrogate the insured by suing the third party who actually caused the damage insured against. This research contains three chapters in addition to the introduction and the conclusion. The first chapter addresses insurance in general and the contract of insurance in particular, Its definition, difference from other type of contracts, parties to it in addition to it is own principles for example ubrimafide, and the duty of disclosure. The second chapter handles subrogation, historical background, definition, criticisms against, Its procedure, the situations under which there is no right of subrogation, and wavier of this right. The third chapter discuss the indemnity, its relation with subrogation, the Assessment of indemnification, co insurance and double insurance, and the uninsured losses. At last the conclusion which contains the recommendations and suggestions

Effect of production systems on the performance of dairy cows in the Gezira State, Sudan

      This study was conducted in the Gezira State, Sudan, with the objectives of investigating and comparing the  effect of production  systems  on age  at first calving, calving interval, milk yield, herd structure, mortality and growth rate in traditional animal production and organized dairy farms. Six out of eight localities were included in the study. From each locality, 5 herds, each of traditional animal production and organized dairy farms were selected. This survey was carried out  using questionnaire involving 40 farmers (including the surveyed farms) from each locality. Means and standard deviations for each studied parameter were calculated using SPSS. The result revealed greater differences in the studied parameters between the two systems of production. Feed had a great influence on animal performance. It could be recommended that, for improving the traditional farm performance, efforts should be payed  to upgrade animal genetics through selection from highly producing local cows and introduction of foreign breeds. Feeding improvement in both terms of quality and quantity is also needed. اجريت هذه الدراسة  بولاية الجزيرة بغرض التعرف ومقارنة أثر نظم الانتاج المختلفة علي العمر عند اول ولادة والفترة بين الولدتين وانتاج اللبن وتركيب القطيع والنفوق ومعدل النمو في كل من قطاع الانتاج الحيواني التقليدي ومزارع الالبان المنتظمة . شملت الدراسة ستة من ثمانية محليات. اختير من كل محلية 5 قطعان من كل من قطاع الانتاج الحيواني التقليدي ومزاع الالبان المنتظمة. دعم المسح باستبيان شمل 40 مزارع من كل محلية. حسبت المتوسطات والانحرافات المعيارية لكل عنصر من عناصر الدراسة وذلك باستخدام نظام الحزم الاحصائية للعلوم الاجتماعية (  (SPSS  كشفت الدراسة عن فروقات معنوية بين العناصر المدروسة في كل من النظاميين واكدت ان الغذاء له اثر كبير علي اداء الحيوان وكذلك العناصر الأخرى خاصة الوراثية قد يكون لها اثر علي الاداء. من اجل تحسين مزارع الانتاج الحيواني التقليدي توصي الدراسة تبذل مجهودات لرفع الكفاءة الوراثية للحيوان  من خلال الاختيار من الابقار المحلية العالية  الانتاج وادخال السلالات الاجنبية . أيضاً يجب رفع مستوي الغذاء من الناحية الكمية والنوعية.               &nbsp

Bacteriological Investigation of Sudanese Beef

Animals of every kind are in continual contact with microorganisms.  Bacteria occur most abundantly in habitats where they find food, bacterial contamination affects human health,  and the study will cater for investigation of other meat contaminants in cattle meat. This study is undertaken to fill the gap in this area.  Three  hundred and twenty four bacterial isolates belonging to twenty seven bacterial genera were recovered from 460 specimens from meat samples and rectal swaps from apparently healthy carcasses from two slaughter houses; Ghanawa- Khartoum (beef brought from all over the country) and West Al Gash (Kassala),that for microbial examination .  Bacteria were isolated in the period from March, 2011 to June, 2013 involving four seasons.  Isolation of bacteria was performed by conventional microbiological methods and identified according to the cultural and biochemical tests.  Cambylobacters isolated in accordance with ISO 2006 method and particular attention was made to provide microaerophillic conditions at 42?C.   Statistical analysis of the obtained results showed a significant difference with respect to the seasons for the isolates but no significant difference was indicated among the different types of the carcasses parts from which the specimens were taken.   This study explained a high level of bacterial contamination of beef carcasses without identification of the source of contamination. The least encountered isolates were Clostridium spp.  and Streptobacillus spp. with prevailed at   (00.74%). Although cambylobacters demonstrated a prevalence of 13.33.% in Summer, 2012 nevertheless, their presence of great concern as a zoonotic pathogen.  Arcobacter cryaerophilus was isolated with a low prevalence however, it`s isolation is of great significance as this species is recently recognized as an emerging pathogen.The study recommend that, highly strict measures should be applied to curtail the contamination levels or to lessen it to the minimum, development of methodologies to appropriate management by application of Hazard Analysis Critical Control Point system, and national survey for the identification of meat contaminants should be adopted and executed using both microbilogical culturing methods and molecular biology methods

Knowledge, attitude and practices related to COVID-19 among young Lebanese population

Background: As the world faces the most serious and widespread pandemic in recent history, claiming nearly 1,945,610 lives and infecting over 90 million individuals up to January 13, 2021, controlling the spread of COVID-19 is still limited to efforts done by the general population implementing rules and restrictions passed by world governments and organizations. As we wait for the approved vaccines to become widely distributed, the best approach to fighting the spread of this disease is mostly preventative depending largely on individuals' compliance. This study aimed to determine the knowledge, attitude and practices (KAP) towards COVID-19 in Lebanon. Methods: A descriptive analysis was performed to describe the outcome measures of knowledge, attitudes and practices towards COVID-19 on a convenience sample from the Lebanese population in relation to socio-demographic characteristics and level of concern towards COVID-19. One thousand eight hundred sixty-one participants filled in an online survey (response rate: 18.5%) distributed by social media to social networks of the research team members. Results: Participants were mainly young (49.4% between 18 and 24 years) and males (73.7%). Participants showed an overall appropriate knowledge of COVID-19 (67.1%) and positive attitude (around 90% were optimistic about treatment and vaccination) and had good preventive practices towards COVID-19 (around 75% washed hands and avoided public places). Knowledge and practices correlated positively with marriage, age, education, working in a healthcare field and with the level of concern about getting COVID-19. Conclusions: This study found good overall levels of KAP among the studied Lebanese population. This can help in controlling the spread of COVID-19 if individuals were forced to adhere to social distancing and appropriate preventative practices.Scopu

EFFECT OF WATER SEED-EXTRACTS OF ALLIIUM PLANT (Allium sativum) & CELERY PLANT(Apium gravealens)IN THE ADULT HOUS FLY (Musca domestica L. )

The Study aimed to determine the impact of aqueous extract of plant bulbs of garlic seeds Allium sativum and scelery Apium gravealens measuring the biological effect on the adult house fly Musca domestica L. Different concentrations (1000, 2000, 3000ppm) of iequeous extract of both plants with time periods(6, 12, 24) hours in order to assess the likely impact of both at plants through insect exposure to aqueous extracts of nutrition Feeding method.The results showed that the rate of mortality of adult in aqueous extract of bulbs plant garlic is higher than in the extract of the seeds celery, reaching the highest percentage in plant extract of garlic 67.5 %, while the highest rate was in the plant celery 38.75% at 3000 ppm .The study showed that the adult mortality percentege at (24) hors period is higher compared with the period of (6 , 12) hours for both plants and all concentration