PURPOSE The purpose of our study was to determine whether arrestin residues previously predicted by computational modeling to interact with an aspartic acid substituted rhodopsin tail are actually involved in interactions with phospho-residues on the rhodopsin cytoplasmic tail. METHODS We generated arrestin mutants with altered charges at predicted positions. These mutants were then tested fo...

We report herein on the first evidence for the presence of bovine immunodeficiency virus (BIV) in Zambia. Serological surveillance of BIV and bovine leukemia virus (BLV) was conducted in traditional cattle herds in Zambia. Out of a total of 262 sera analyzed, 11.4% were found positive for anti-BIV p26 antibodies as determined by Western blot analysis, while 5.0% were positive for anti-BLV gp51 ...

Mirror symmetry between individuals is a behavioral phenomenon that is commonly observed in conversation: individuals tend to mimic each other’s postures and gestures as a part of a shared dialog. The present work studies the process of symmetry building and symmetry breaking in the movements of pairs of individuals while imitating each others’ movements in dance. Spatial and temporal symmetrie...

Tumor necrosis factor (TNF) has a variety of protective and pathological actions in human malaria. We report that different laboratory lines of Plasmodium falciparum which were derived from a single wild isolate (IT 4/25/5) varied widely in their ability to stimulate TNF production by human mononuclear cells. In the cloned line R29 we observed that subcultures selected for high rosetting freque...

The development of the antibody response to peptides of the transmembrane glycoprotein of bovine immunodeficiency virus (BIV) was followed over a period of 50 weeks in six cattle experimentally infected with the BIV(FL112) isolate. Antibody was detected by an enzyme immunoassay using either a linear or a cyclized peptide with structural features common to an immunodominant region of other lenti...

Histidinol dehydrogenase from three differing revertants of ICR-191A-induced frameshift hisD3018 has been purified and examined for amino acid replacements. The enzyme from one spontaneously arising revertant, R7, contains an extra proline residue, whereas that from another, R5, contains an extensive frameshifted sequence, four amino acid residues of which have been identified to date. The amin...

this paper studies housing choice under fuzzy circumstances. in this article, fuzzy distance method is employed for selection process. methodology of housing choice with fuzzy distance approach is based on the minimizing fuzzy distance of features from desired amount under fuzzy condition. meanwhile, in the discrete choice models, housing choice is based on utility maximizing of available optio...

BACKGROUND Coinfection with human immunodeficiency virus (HIV) may increase susceptibility to malaria by compromising naturally acquired immunity. METHODS In 339 adults (64% HIV infected), we measured antibodies to Plasmodium falciparum variant surface antigens (VSA) and antibodies that opsonise infected erythrocytes using parasite lines FCR3, E8B, and R29, and antibodies to merozoite antigen...

A number of models for estimating the coefficients of dynamical systems have been proposed. One is the exact discrete model, another is the latent differences model or proportional change model, and a third is a continuous time manifest variable differential structural model. These models differ from standard growth curve modeling in that they intend to illuminate processes generating individua...

During the design and development of truck cabins, the safety of the driver and the front seat passenger in an accident is an important task and should be considered. The cab must be designed in such a way that in an accident a sufficient survival space is guaranteed. The aim of this study is to investigate the behavior of Iran Khodro (IKCO) 2624 truck subjected to a complex crash test accor...