Host susceptibility to subgroup B, D, and E avian leukosis viruses (ALV) is determined by specific alleles of the chicken tvb locus. Recently, a chicken gene that encodes a cellular receptor, designated CAR1, specific for subgroups B and D ALV was cloned, and it was proposed that this gene was the s3 allele of tvb (J. Brojatsch, J. Naughton, M. M. Rolls, K. Zingler, and J. A. T. Young, Cell 87:...

Avian leukosis virus subgroup J (ALV-J) is a new type of virus that mainly induces myeloid leukosis (ML) in chickens. To further elucidate the pathogenesis of ALV-J infection and tumor development, expression profiles from the bone marrow tissue of 15 infected and 18 non-infected birds from a local-breed poultry-farm under naturally infected conditions, were analyzed by suppression-subtractive ...

The viral cell receptors and infection can be blocked by the expression of the viral receptor-binding protein. Thus, the viral cell receptor is an attractive target for anti-viral strategies, and the identification of viral cell receptor is critical for better understanding and controlling viral disease. As a model system for viral entry and anti-retroviral approaches, avian sarcoma/leukosis vi...

Ž . An effective approach to obstacle detection and avoidance for autonomous land vehicle ALV navigation in outdoor road environments using computer vision and image sequence techniques is proposed. To judge whether an object newly appearing in the image of the current cycle taken by the ALV is an obstacle, the object shape boundary is first extracted from the image. After the translation from ...

The literature review is devoted to the peculiarities of artificial lung ventilation (ALV) in patients with morbid obesity during laparoscopic oncosurgical interventions Trendelenburg position. At present, there are no consensus recommendations on choice optimal ALV mode anesthesia this area oncosurgery. When analyzing data obtained from other types operations, was impression that were signific...

avian leukosis viruses (alvs) cause different types of tumours in poultry and can affect the health and egg production of the birds. to investigate the presence of the virus in chicken layer flocks in shiraz, 222 egg albumen from local layer breeder (25 eggs), local layer grand parent (30 eggs), broiler breeder (60 eggs), commercial layer (46 eggs) and broiler grand parent (61 eggs) were tested...

VEERISETTY, V., and M. K. BRAKKE. 1978. Purification of some legume carla viruses. Phytopathology 68:59-64. Purification schemes were developed which yielded 0.7 to single nucleoprotein component in rate-zonal sucrose and 1.0 mg of alfalfa latent virus (ALV) and pea streak virus equilibrium cesium chloride density gradient centrifugation. (PSV) and 0.1 to 0.3 mg of red clover vein mosaic virus ...

Several models have been proposed for visual homing in insects. These work well in small-scale environments but performance usually degrades significantly when the scale of the environment is increased. We address this problem by extending one such algorithm, the average landmark vector (ALV) model, by using a novel approach to waypoint selection during the construction of multi-leg routes for ...