Why heroin is such a dangerous drug

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Adam Quirk FBI

Science

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Marine and terrestrial biogeochemical models are key components of the Earth System Models (ESMs) used toproject future environmental changes. However, their slow adjustment time also hinders effective use of ESMsbecause of the enormous computational resources required to integrate them to a pre-industrial equilibrium. Here,a solution to this "spin-up" problem based on "sequence acceleration", is shown to accelerate equilibration of state-of-the-art marine biogeochemical models by over an order of magnitude. The technique can be applied in a "blackbox" fashion to existing models. Even under the challenging spin-up protocols used for Intergovernmental Panelon Climate Change (IPCC) simulations, this algorithm is 5 times faster. Preliminary results suggest that terrestrialmodels can be similarly accelerated, enabling a quantification of major parametric uncertainties in ESMs, improvedestimates of metrics such as climate sensitivity, and higher model resolution than currently feasible.

Efficient spin-up of Earth System Models usingsequence acceleration

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Using deep archival observations from the Chandra X-ray Observatory, we present an analysis of linear X-ray-emitting features located within the southern portion of the Galactic center chimney, and oriented orthogonal to the Galactic plane, centered at coordinates l = 0.08◦ , b = −1.42◦ . The surface brightness and hardness ratio patterns are suggestive of a cylindrical morphology which may have been produced by a plasma outflow channel extending from the Galactic center. Our fits of the feature’s spectra favor a complex two-component model consisting of thermal and recombining plasma components, possibly a sign of shock compression or heating of the interstellar medium by outflowing material. Assuming a recombining plasma scenario, we further estimate the cooling timescale of this plasma to be on the order of a few hundred to thousands of years, leading us to speculate that a sequence of accretion events onto the Galactic Black Hole may be a plausible quasi-continuous energy source to sustain the observed morphology

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Efficient spin-up of Earth System Models usingsequence acceleration

Reboulia: features, anatomy, morphology etc.

Daily Lesson Log in Science 9 Fourth Quarter Physics

Human genetics..........................pptx

PODOCARPUS...........................pptx

ONLINE VOTING SYSTEM SE Project for vote

ABHISHEK ANTIBIOTICS PPT MICROBIOLOGY // USES OF ANTIOBIOTICS TYPES OF ANTIB...

Thyroid Physiology_Dr.E. Muralinath_ Associate Professor

Terpineol and it's characterization pptx

GBSN - Microbiology (Unit 5) Concept of isolation

Genome sequencing,shotgun sequencing.pptx

X-rays from a Central “Exhaust Vent” of the Galactic Center Chimney

Porella : features, morphology, anatomy, reproduction etc.

Energy is the beat of life irrespective of the domains. ATP- the energy curre...

Module for Grade 9 for Asynchronous/Distance learning

Dr. E. Muralinath_ Blood indices_clinical aspects

CYTOGENETIC MAP................ ppt.pptx

GBSN - Biochemistry (Unit 2) Basic concept of organic chemistry

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Why heroin is such a dangerous drug

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