منابع مشابه
synthesis and characterization of some new cyclometalated organoplatinum(ii) complexes containing phosphite ligand
در این تحقیق روشی جهت سنتز یک سری از کمپلکس های پلاتین (ii) حاوی لیگاند های دهنده ی فسفری شامل فسفیت و فسفین ارائه شده است. واکنش پیش ماده ی پلاتین (ii)،trans/cis- [ptcl2(sme2)2] ، با 2 اکی مولار از لیگاند p(oph)3در حلال بنزن کمپلکس1، cis-[ptcl2(p(oph)3)2] را تولید می نماید. جهت سنتز کمپلکس سایکلو متال فسفیتی، کمپلکس 1 با 1 اکی والان واکنشگر ptcl2 در حلال زایلن در شرایط رفلاکس زیر گاز آرگون م...
Some old and some new statistical tools for outcomes research.
Outcomes research “seeks to understand the end results of particular health care practices and interventions”1 to inform the development of clinical practice guidelines, evaluate the quality of medical care, and foster effective interventions to improve the quality of care.2 Although randomized trial designs have been used to assess quality of care and to identify effective interventions in the...
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W ith a shovel excavator, its operator can effortlessly move 720 tons of earth with a single movement. On the other end of the spectrum, a VLSI fabrication plant lets designers create elaborate submicron structures. Without tools, a car factory's thousands of employees can't accomplish much; with tools, they can assemble a car in 18 effort-hours. Sometimes, tools can even subsume their operator...
متن کاملSome New Random Field Tools for Spatial Analysis
This is a brief review, in relatively nontechnical terms, of recent rather technical advances in the theory of random field geometry. These advances have provided a collection of explicit new formulae describing mean values of a variety of geometric characteristics of excursion sets of random fields, such as their volume, surface area and Euler characteristics. What is particularly important in...
متن کاملPHEMTO: protein pH-dependent electric moment tools
PHEMTO (protein pH-dependent electric moment tools) is released in response to the high demand in protein science community for evaluation of electrostatic characteristics in relations to molecular recognition. PHEMTO will serve protein scientists with new advanced features for analysis of protein molecular interactions: Electric/dipole moments, their pH-dependence and in silico charge mutagene...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1907
ISSN: 0036-8733
DOI: 10.1038/scientificamerican02231907-172