Results 221 to 230 of about 1,927,312 (260)

Position estimation of selected targets

Proceedings of IEEE International Conference on Robotics and Automation, 2002
Recovering depth and 3D position using known camera motion is useful for solving many problems in robotics such as object manipulation, navigation, and localization. Most existing techniques attempt to solve the general problem by recovering depth across the entire image.
Richard LeGrand, Ren C. Luo
openaire   +1 more source

Positive Selection in Prion Protein

Journal of Molecular Evolution, 2009
The prion diseases, such as Creutzfeldt-Jakob disease of humans and bovine spongiform encephalopathy, involve the aberrant metabolism and accumulation of prion protein PrP. There are three contradictory hypotheses about evolution of prion protein gene PRNP.
Marko, Premzl, Vera, Gamulin
openaire   +2 more sources

Positive selection in the evolution of cancer

Biological Reviews, 2006
We hypothesize that forms of antagonistic coevolution have forged strong links between positive selection at the molecular level and increased cancer risk. By this hypothesis, evolutionary conflict between males and females, mothers and foetuses, hosts and parasites, and other parties with divergent fitness interests has led to rapid evolution of ...
Bernard J, Crespi, Kyle, Summers
openaire   +2 more sources

Positive and Negative Thymocyte Selection

Critical Reviews™ in Immunology, 1998
T cells differentiate from CD4-CD8- (DN) precursor to mature CD4+ or CD8+ (SP) thymocytes through the CD4+CD8+ (DP) stage. Immature thymocytes express pre-TCR complex composed of pT alpha and TCR beta chains, which plays a role in allelic exclusion of TCR beta and promotion from DN to DP transition.
T, Saito, N, Watanabe
openaire   +2 more sources

Positive and negative selection in Basel

Nature Immunology, 2008
Harald von Boehmer describes how he used mice transgenic for T cell receptor αβ to identify T cell receptor–dependent cellular selection and lineage commitment as mechanisms responsible for generating an effective and self-tolerant adaptive immune system.
openaire   +2 more sources

Positive selection of IgG+ over IgM+ B cells in the germinal center reaction

Immunity, 2021
Christopher Sundling, Angelica W Y Lau, Katherine Bourne   +2 more
exaly  

Evolution: selection for positive illusions

Nature, 2011
Accepted ...
van Veelen, M., Nowak, M.A.
openaire   +3 more sources

Mutations in the transcription factor FOXO1 mimic positive selection signals to promote germinal center B cell expansion and lymphomagenesis

Immunity, 2021
Mark P Roberto, Gabriele Varano, Antony B Holmes   +2 more
exaly  

Is Longevity a Positive Selection?

Science, 1981
openaire   +2 more sources

Positive selection of lymphocytes

Cell, 1994
openaire   +2 more sources