نتایج جستجو برای: bvd

تعداد نتایج: 349  

2007
Adel I. Al-Afaleq Ali. A. Hegazy

To the best of our knowledge, this is the first study to be conducted on bovine virus diarrhoea (BVD) in the Kingdom of Saudi Arabia. The study involved the Eastern Region of the Kingdom. Samples were collected from clinically suspected cases which were subjected to clinico-pathological and virological studies. The results indicated that the disease is widespread in the Eastern Province. The ep...

2013
D. SáNchez-Parcerisa A. Gemmel K. Parodi E. Rietzel

Siemens AG, Healthcare Sector, Imaging, Particle Therapy, Hofmannstr. 26, 91052 Erlangen, Germany Ruprecht-Karls-Universität Heidelberg, Faculty of Physics and Astronomy, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany Heidelberg Ion Therapy Center and Department of Radiation Oncology, Im Neuenheimer Feld 450, 69120 Heidelberg, Germany Present address: Department of Radiation Oncology, Unive...

2007
Anantha Vidya Sagar S. Balasubramanian V. Chandrasekaran

This paper proposes a novel system for the automatic detection of important anatomical structures such as the Optic Disc (OD), Blood Vessels and Macula in digital fundus retinal images. The novelty is in extraction of blood vessels and localization of macula. OD localization is done using Principle Component Analysis (PCA) followed by an active contour based approach for accurate segmentation o...

Journal: :Revue scientifique et technique 1992
T Løken

Serological surveys in Norway have demonstrated neutralising antibodies against bovine virus diarrhoea (BVD) virus in cattle, sheep and goats. The prevalences were 18.5%, 4.5% and 3.6%, respectively. Occurrence of pestivirus-induced disease in Norway is described. Outbreaks of reproductive failure and mucosal disease have been reported, and the number of persistently-infected animals detected h...

2018
Volker Moennig Paul Becher

Bovine viral diarrhea (BVD) is one of the most important infectious diseases of cattle with respect to animal health and economic impact. Its stealthy nature, prolonged transient infections, and the presence of persistently infected (PI) animals as efficient reservoirs were responsible for its ubiquitous presence in cattle populations worldwide. Whereas it was initially thought that the infecti...

2009
Joseph I Daniel

This paper investigates the conditions under which dominant airlines internalize self-imposed delays in a deterministic bottleneck model of airport pricing, complementing the similar analysis of Brueckner and Van Dender (BVD, 2008) for the standard congestion-pricing model. A unified model of bottleneck tolling includes untolled, uniform-, coarse-, multi-step-, and continuous-toll equilibria as...

Journal: :iranian journal of biotechnology 2007
massoud talebkhan garoussi mohammad reza bassami seyed ehsan afshari

bovine viral diarrhoea virus (bvdv) is an important pathogen of dairy cattle. in this study, bulk milk samples representing a total of 4105 milking cows, from 18 dairy cattle herds in the suburb of mashhad- iran, were tested for presence of bvdv by the use of a nested reverse transcription polymerase chain reaction (nested rt- pcr) assay. non of the cows in the herds had been vaccinated against...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده دامپزشکی 1391

بیماری bvd یک بیماری ویروسی از جنس پستی ویروس و خانواده فلاوی ویریده است. از نظر اپیدمیولوژی این ویروس در نشخوارکنندگان بسیار خطرناک بوده و سبب خسارات اقتصادی زیادی شامل کاهش کارایی تولیدمثلی، کاهش تولید شیر، سرکوب سیستم ایمنی، تولد گوساله های ناقص الخلقه و یا گوساله های دارای عفونت پایدار در گله گاوها می شود. هدف اصلی مطالعه حاضر، بررسی کارایی تولیدمثلی در بین گاوهایی با آنتی بادی سرمی بر ضد و...

Journal: :Journal of Central European Agriculture 2015

Journal: :Journal of vision 2015
A Przekoracka-Krawczyk P Nawrot T Kopyciuk R Naskrecki

Binocular vision disorders (BVD) are quite common in subjects with cerebellar dysfunctions. Also individuals with strabismus often suffer from many motor deficits, such as impaired body balance and walking. It is known that the cerebellum is necessary to maintain proper body posture but also to learn motor skills. It is conceivable that subjects with BVD would also have deficits in procedural (...

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