Accurate chromosome segregation depends on coordination between cohesion resolution and kinetochore-microtubule interactions (K-fibers), a process regulated by the spindle assembly checkpoint (SAC). How these diverse processes are coordinated remains unclear. We show that in mammalian oocytes Shugoshin-like protein 2 (Sgol2) in addition to protecting cohesin, plays an important role in turning ...

Electric fields of coherent Raman signals are resolved with sensitivity for high-frequency vibrational resonances utilizing a four-pulse, trapezoidal beam geometry in a diffractive optic-based interferometer. Our experiments show that the heterodyne detected signal phase is stabilized for particular terms in the third-order response function by the cancellation of inter-pulse phases. The C-H st...

In this paper we investigate, both experimentally and theoretically, the competition between different failure mechanisms (stretching, bending and curvature l ocalization) in freestanding submicron thin films commonly used in micro-electromechanical systems. Micro structures made of elastic -brittle materials such as ultrananocrystalline diamond, diamond like carbon and silicon nitride, as well...

Underwater photography is challenging due to poor illumination and varying environment condition. Due to the insufficient illumination provided by the Automated Underwater Vehicles (AUV), the obtained degraded images need to be enhanced. Image enhancement techniques have to be implemented in hardware to be used with AUVs. Field Programmable Gate Arrays (FPGA) have been proved to be a better opt...

In this project, we are given a list of 96×96-pixel 8bit graylevel images with their corresponding (x,y) coordinates of 15 facial keypoints. We first adopt hold-out cross validation to randomly split the data set into a training set and a test set, so that we can develop our algorithm on the training set and assess its performance on the test set. Our algorithm first performs histogram stretchi...

Surfaced-enhanced Raman scattering (SERS) of 4,4'-biphenyldithiol (BPDT) has been investigated at a silver island film. Ordinary Raman (OR) spectra of neat sample in solid state and in basic solution have also been taken for comparison. The spectral feature in the SERS spectrum was similar to that for the OR spectrum in basic solution, except for the broadening of ring stretching bands indicati...

PURPOSE The purpose of this study was to investigate whether foam roller, preexhaustion, and static stretching had any effect on isometric muscular endurance the finger flexors climbing performance in sport climbers. METHODS Nine climbers who were able perform at a difficulty 5.11d, included study. Warm-up exercise consisted myofascial release, pre-exhaustion exercises, stretching. Grip back st...

different methods arising from scientific investigation for removing noise from chaotic signals have been introduced and one of their best is local projection approach. the local projection approach projects the chaotic data in the neighborhood onto the hyper-plane. selection of neighborhood radius has a direct impact on its performance. a noticeable feature associated with chaotic trajectories...

it is shown that when a special vertex stretching is applied to a graph, the cochordal cover number of the graph increases exactly by one, as it happens to its induced matching number and (castelnuovo-mumford) regularity. as a consequence, it is shown that the induced matching number and cochordal cover number of a special vertex stretching of a graph g are equal provided g is well-covered bipa...

This paper introduces a new automatic image enhancement technique based on real-coded Genetic Algorithms (GAs). The task of the GA is to adapt the parameters of a novel extension to a local enhancement technique similar to statistical scaling, as to enhance the contrast and detail in the image according to an objective fitness criterion. We compared our method with other automatic enhancement t...