منابع مشابه
Does chlorine peroxide absorb below 250 nm?
Low-lying singlet and triplet electronic excited states of ClOOCl are presented. Calculations of the excitation energies and oscillator strengths are reported using excited state coupled cluster response methods, as well as the complete active space self-consistent field method with the full Breit-Pauli spin-orbit operator. These calculations predict that for ClOOCl there should be a weakly abs...
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Bioresorbable polymers and biocorrodible metals are the latest developments in biodegradable materials used in interventional cardiology for the mechanical treatment of coronary atherosclerosis. Poly-L-lactic acid is the most frequently used bioresorbable polymer and initial evidence of feasibility, efficacy and clinical safety following deployment of polymer-based platforms was gained after co...
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عصر روشنگری زمان شکل گیری ایده های مدرن تربیتی- آموزشی بود اما تاکید بیش از اندازه ی دوشاخه مهم فلسفی زمان یعنی عقل گرایی و حس گرایی بر دقت و وضوح، انسان عصر روشنگری را نسبت به دیگر تواناییهایش نابینا کرده و موجب به وجود آمدن افرادی تک بعدی شد که افتخارعقلانیتشان، تاکید شان بر تجربه فردی، به مبارزه طلبیدن منطق نیاکانشان وافسون زدایی شان از دنیا وتمام آنچه با حواس پنجگانه قابل درک نبوده و یا در ...
Shedding light on bioabsorbable stent struts seen by optical coherence tomography in the ABSORB trial.
Optical coherence tomography (OCT) is an emerging intracoronary imaging technology that obtains depthresolved images of light backscattered from the coronary wall with an axial resolution of 10 m. First demonstrated in 2001 in patients,1 intracoronary OCT is now commercially available and is beginning to be adopted in cardiac catheterization laboratories worldwide. An important application of O...
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A new technological paradigm which rewards cooperation in the innovation of complex technologies seems to have emerged in recent years. Global reach and greater innovation speed are said to be key benefits of networkbased complex innovation. By bringing together multiple sources of knowledge and experience, networks of innovative firms and other organizations increasingly appear to be able to a...
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ژورنال
عنوان ژورنال: Science
سال: 1893
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.ns-21.528.150-a