In model-based tracking the problem of a high dimensional solution space often appears. The standard solution to this problem is to use a prediction followed by an iterative search or a Kalman filter. The drawback of both is the risk of ending up in a local extremum. In this paper we suggest to apply bootstrapping to increase performance in model-based tracking. The bootstrapping information is...

Actin branches out in yeast any of the same proteins control actin polymerization in budding yeast and mammalian cells. But budding yeast researchers—hampered by an emphasis on genetics and an inaccessible yeast cytoplasm dense with ribosomes and glycogen granules—have often lagged behind in providing structural descriptions based on electron microscopy (EM). This has fueled suspicions about wh...

a series of new hexahydroquinoline and 1,4-dihydropyrimidine derivatives were synthesized. condensation of 2-methyl- thiazole-4-carboxaldehyde (1) with 1,3-cyclohexanedione and alkyl 3- aminocrotonate afforded 4-(2-methyl-thiazol-4-yl)-hexahydroquinoline while condensation of aldehyde (1) with benzoyl acetone and thiourea gave 1,4-dihydropyrimidine derivatives. the stereochemistry of 1,4-dihydr...

The hydrodynamics and heat/mass transport associated with condensation on a moving drop have been investigated for the intermediate Reynolds-number range of drop motion (Re = O(100)). The drop environment is a mixture of saturated vapour and a non-condensable. The formulation entails a simultaneous solution of the quasi-steady elliptic partial differential equations that describe the flow field...

Condensation Pressure Effect on Microleakage of Mineral Trioxide Aggregate Seyed Mohsen Jalalzade 2Elham Khoshbin *3Seyed Abdolkarim Tabatabaei Endodontist, Mashhad, Iran. Assistant professor of endodontic department, Dental school, Hamedan University of medical science, Hamedan, Iran Post graduate student of pediatric dentistry department, Dental school, Shahid Beheshti Universi...

We argue that it may be possible to reheat the universe after inflation driven by D-brane annihilation, due to the coupling of massless fields to the time-dependent tachyon condensate which describes the annihilation process. This mechanism can work if the original branes annihilate to a stable brane containing the standard model. Given reasonable assumptions about the shape of the tachyon back...

Backgrounds and Motivations. Conventional complexity theory gives us only asymptotic information and does not give us any information about the complexity of each individual instance. It is also true, however, that many of us are feeling that the complexity of each instance is quite different from one to another. Instance complexity, denoted by ic(x : A), has been thus introduced [7, 9] as a me...

he bonds between leukocytes and endothelial cells last longer when under some strain, as shown by Yago et al. (page 913). The results explain why these white blood cells attach to and roll along the vasculature only when blood flow is strong enough. Most explanations of this flow-enhanced adhesion suggest that flow increases the number of bonds that form between L-selectin on leukocytes and PSG...

The two most popular candidates for dark energy, i.e. a cosmological constant and quintessence, are very difficult to distinguish observationally, mostly because the quintessence field does not have sizable fluctuations. We study a scalar field model for dark energy in which the scalar field is invariant under reflection symmetry φ → −φ. Under general assumptions, there is a phase transition at...