We investigate the effectiveness of DNA conformational preconditioning by electrophoresis through an obstacle array on the later stretching of molecules in a microchannel contraction. The control, reproducibility, and ability to compare with the well-studied single postcollision problem make this a model system for conformational preconditioning studies. We find that the obstacle array increase...

This paper describes a robust single sperm tracking algorithm (SSTA) that can be used in laser optical trapping and sperm motility studies. The algorithm creates a region of interest (ROI) centered about a sperm selected by the user. SSTA contrast enhances the ROI image and implements a modified four-class thresholding method to extract the tracked sperm as it transitions in and out of focus. T...

The paper presents a computational method for spatial behavioral simulation of moving mechanical objects. The developed software is able to handle both two-dimensional and threedimensional objects whose geometric models are imported from commercialized CAD systems through STEP files. Kinematical description of various objects is unified, stationary obstacles and moving bodies are treated in the...

Abstract Eocene mafic magmatism in the Himalaya provides a crucial window for probing evolution of crustal anatexis processes within lower plate collisional orogen. We report geochemical data from earliest postcollision ocean-island basalt–like dikes intruding Tethyan near northern edge colliding Indian plate. These occurred coeval, and spatially overlap, with granitoids cores gneiss domes were...

We report a combined experimental and theoretical study of the ionization dynamics tetrahydrofuran induced by 250 eV electron impact in which highest occupied molecular orbital is ionized leading to stable parent ion. Experimentally reaction microscope was used, covering nearly entire $4\ensuremath{\pi}$ solid angle for ejected slow electron. present triple-differential cross sections projectil...

We have investigated the folding behavior of dimeric and covalently crosslinked versions of the 33-residue alpha-helical GCN4-p1 coiled coil derived from the leucine zipper region of the transcriptional activator GCN4. The effects of multisite substitutions indicate that folding occurs along multiple routes with nucleation sites located throughout the protein. The similarity in activation energ...

Young massive stars in the central parsec of our Galaxy are best explained by star formation within at least one, and possibly two, massive self-gravitating gaseous discs. With help of numerical simulations, we here consider whether the observed population of young stars could have originated from a large angle collision of two massive gaseous clouds at R ≃ 1 pc from Sgr A∗. In all the simulati...