منابع مشابه
Office Hysteroscopy in Infertility
Background For patients undergoing in vitro fertilization, lower pregnancy rates are observed in the presence of uterine cavity anomalies and correction of these anomalies has been associated with improved pregnancy rates. Office hysteroscopy has been proven to have superior sensitivity and specificity in evaluation of the endometrial cavity. Diagnostic hysteroscopy can be performed in an offic...
متن کاملTo Cope with the Uncertainty in Smart Energy Systems: Office Buildings as a Source for Energy Flexibility
Electricity energy generation and its supply through electricity networks is mainly organized in a top-down, centralized manner. Energy consumption can be predicted quite accurately at a high level, and this forms the basis for pre-scheduling the production by large power plants. Only few actors are involved in the generation, trade, and transportation of electricity, but this is changing rapid...
متن کاملمقایسه کلینیکی اثر سفید کنندگی هیدروژن پراکساید38./. و کارباماید پراکساید 45./. بر روی دندان (in-office)
چکیده ندارد.
15 صفحه اولAntarafacial-Antarafacial Cope Rearrangement
Thermal rearrangement of 2-thiabicyclo[ 3.2.0]hepta-3,6-diene-6,7-dicarbonitriles 1-3 to their 4,5-dicarbonitrile isomers 4-6 takes place at 110-140 "C in yields of 82-84%. The reactions are first order with rates almost independent of the polarity of the solvent. Activation parameters (m = 120-140 kJ mol-' and AS* = 0 J K-l mol-') are in agreement with a concerted symmetry-allowed antarafacial...
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ژورنال
عنوان ژورنال: BMJ
سال: 1990
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.301.6742.32