Different from animal cells that divide by constriction of the cortex inward, cells of land plants divide by initiating a new cell-wall segment from their center. For this, a disk-shaped, membrane-enclosed precursor termed the cell plate is formed that radially expands toward the parental cell wall [1-3]. The synthesis of the plate starts with the fusion of vesicles into a tubulo-vesicular netw...

bipolar spectrum disorders may often go undiagnosed or unrecognized. the aim of this study was to determine the proportion of bipolar disorder symptoms in iranian patients with a major depressive episode.313 patients with a current dsm-iv-tr (diagnostic and statistical manual of mental disorders 4th ed. text rev.) diagnosed with a major depressive episode entered this cross-sectional study. thi...

This study presents an experimental stack-level thermal and hydrodynamic assessment of a model air-cooled PEM fuel cell. To mimic the heat generation inside the MEA, rubber heater films are used. Pressure drop along the stack channels and temperature distribution on the bipolar plate surface are measured for the channel Reynolds number range of 200-500 and the stack input power range of 100-250...

To examine the relative roles of chromosomes, spindle poles and microtubules in the formation of the metaphase spindle and metakinesis, I have experimentally placed an extra centrosome-free pronucleus close to a forming bipolar spindle in a living cell. The chromosomes from the extra nucleus induce the formation of an extra half-spindle from one pole of the otherwise normal bipolar spindle with...

During embryonic development of the mammalian cerebral cortex, postmitotic cortical neurons migrate radially from the ventricular zone to the cortical plate. Proper migration involves the correct orientation of migrating neurons and the transition from a multipolar to a mature bipolar morphology. Herein, we report that the 2 isoforms of Myosin-10 (Myo10) play distinct roles in the regulation of...

The prospective pyramidal neurons, migrating from the proliferative ventricular zone to the overlaying cortical plate, assume multipolar morphology while passing through the transient subventricular zone. Here, we show that this morphogenetic transformation, from the bipolar to the mutipolar and then back to bipolar again, is associated with expression of connexin 43 (Cx43) and, that knockdown ...

Commercialization of proton exchange membrane fuel cells can only materials provided its performance is closely related to existing technologies useful in commercial application. Other critical parameters like the utilization cheaper should be taken into account during manufacturing cell. A key component cell that has direct correlation flow plate. The weight coupled with cost revolves around p...

Proton-exchange membrane fuel cells (PEMFCs) are regarded as promising alternatives to internal combustion engines (ICEs) reduce pollution. Recent research on PEMFCs focuses achieving higher power densities, reducing the refueling time, mitigating final price, and decreasing degradations, facilitate commercialization of hydrogen mobility. The design bipolar plates compression kits, in addition ...