نتایج جستجو برای: hot zone
تعداد نتایج: 189365 فیلتر نتایج به سال:
Three-dimensional modeling of upper-mantle anelastic structure reveals that thermal upwellings associated with the two superplumes, imaged by seismic elastic tomography at the base of the mantle, persist through the upper-mantle transition zone and are deflected horizontally beneath the lithosphere. This explains the unique transverse shear wave isotropy in the central Pacific. We infer that th...
Farrell recently published an interesting review paper on imaging human brain responses during heating and cooling. Here, he discussed our work on imaging such responses during menopausal hot flashes (HFs). Hot flashes are triggered by small elevations in core body temperature acting within a greatly reduced interthreshold zone in symptomatic menopausal women. This reduction is due to estrogen ...
We consider spin and electronic properties of itinerant electron systems, described by the spin-fermion model, near the antiferromagnetic critical point. We expand in the inverse number of hot spots in the Brillouin zone, N, and present the results beyond the previously studied N = infinity limit. We found two new effects: (i) Fermi surface becomes nested at hot spots, and (ii) vertex correctio...
We discuss the observational phenomenology of Seyferts from the point of view of the disk model, and argue that the spectral variability may be related to geometrical changes of the cold matter which provides a source of seed photons for Comptonization in a hot central disk. One possible configuration is a model with quasi-spherical accretion in the central part of the disk, with variability de...
a r t i c l e i n f o Keywords: mantle plumes phase transitions temperature dependent viscosity thermal expansivity lattice thermal conductivity Recent high-resolution seismic imaging of the transition zone topography beneath the Hawaiian archipelago shows strong evidence for a 1000 to 2000 km wide hot thermal anomaly ponding beneath the 660 km boundary west of Hawaii islands [Q. Cao et al. Sei...
چکیده: برش مورد مطالعه در 15 کیلومتری جاده ایلام به سمت مهران در منطقه ای تحت عنوان تنگ گراب قرار دارد. سازند گورپی متشکل از سنگهای نرم و تیره رنگ و لیتولوژی نرم بر روی سازند ایلام با سنگهای آهکی سخت و به رنگ سفید و نخودی قرار دارد. در این مطالعه تعداد 51 گونه متعلق به 23 جنس از فرامینیفرهای پلانکتونیک شناسایی و محدوده ی حضور آنها در برش مورد مطالعه تعیین شد. بر این اساس این سازند به 12 بایوزو...
The Edinburgh–Cape Blue Object Survey seeks to identify point sources with an ultraviolet excess. Results for zone 2 of the survey are presented here, covering that part of the South Galactic Cap between 30◦ and 40◦ from the Galactic plane and south of about −12. ◦3 of declination. Edinburgh–Cape zone 2 comprises 66 UK Schmidt Telescope fields covering about 1730 deg2, in which we find some 892...
The electron and positron cosmic rays observations have impulsed a hot debate regarding the origin of such particles. Their propagation in the galactic medium is modeled according to a successfully tested two–zone propagation model. The theoretical uncertainties related to their propagation and production are studied for three cases: secondary production, Dark Matter annihilation, and originati...
The health gap between Indigenous and non-Indigenous Australians may be exacerbated by climate change if temperature extremes have disproportionate adverse effects on Indigenous people. To explore this issue, we analysed the effect of temperature extremes on hospital admissions for respiratory diseases, stratified by age, Indigenous status and sex, for people living in two different climates zo...
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