نتایج جستجو برای: تقارن cpt
تعداد نتایج: 9071 فیلتر نتایج به سال:
With CPT-invariant initial conditions that commute with CPT-invariant final conditions, the respective probabilities (when defined) of a set of histories and its CPT reverse are equal, giving a CPT-symmetric universe. This leads me to question whether the asymmetry of the Gell-Mann–Hartle decoherence functional for ordinary quantum mechanics should be interpreted as an asymmetry of time . PACS ...
A theoretical study of possible signals for CPT and Lorentz violation arising in hydrogen and antihydrogen spectroscopy is described. The analysis uses a CPTand Lorentz-violating extension of quantum electrodynamics, obtained from a general Lorentz-violating extension of the minimal standard model with both CPT-even and CPT-odd terms. Certain 1S-2S transitions and hyperfine Zeeman lines exhibit...
در این تحقیق، تاثیر تزریق داخل صفاقی دارویn6 - سیکلوهگزیل آدنوزین (؛ cha آگونیست اختصاصی گیرنده آدنوزینی (a1 و داروی 8- سیکلوپنتیل 1-3- دی متیل- گزانتین ( cpt؛ آنتاگونیست اختصاصی گیرنده آدنوزینی a1) بر شدت تشنج ناشی از کیندلینگ قشر انتورینال، مورد بررسی قرار گرفت. داروی cha بادوزهای 06/0، 12/0 و 25/0 میلی گرم بر کیلوگرم و cpt با دوزهای 06/0 و 12/0 میلی گرم بر کیلوگرم به گروه های مختلف حیوانات ت...
Several water-soluble derivatives (CPT3, CPT3a-d) of camptothecin (CPT) were synthesized, among which CPT3 bearing an N,N'-dimethyl-1-aminoethylcarbamate side-chain was further conjugated with reductively eliminating structural units of indolequinone, 4-nitrobenzyl alcohol and 4-nitrofuryl alcohol to produce novel prodrugs of camptothecin (CPT4-6). All CPT derivatives were of lower cytotoxicity...
Effective teaching in pharmacology and clinical pharmacology and therapeutics (CPT) is necessary to make medical students competent prescribers. However, the current structure, delivery, and assessment of CPT education in the European Union (EU) is unknown. We sent an online questionnaire to teachers with overall responsibility for CPT education in EU medical schools. Questions focused on under...
Chest physiotherapy (CPT) is a commonly used technique in mechanically ventilated critically ill patients. This study examines the hemodynamic and metabolic changes associated with CPT and measures the attenuation by two doses of intravenous fentanyl (1.5 micrograms/kg and 3.0 micrograms/kg) on these changes. Heart rate, systolic and mean blood pressures, cardiac output, oxygen consumption (VO2...
Cryptotanshinone (CPT), a natural compound isolated from the plant Salvia miltiorrhiza Bunge, is a potential anticancer agent. However, little is known about its anticancer mechanism. Here, we show that CPT inhibited cancer cell proliferation by arresting cells in G(1)-G(0) phase of the cell cycle. This is associated with the inhibition of cyclin D1 expression and retinoblastoma (Rb) protein ph...
1. Abstract 2. Introduction 3. Materials and methods 3.1. Decapitation pruning 3.2. Exogenous application of CPT 3.3. External application of auxin 3.4. Isolation of compounds 3.5. Cytotoxicity assays 3.6. DNA TOP1 assays 3.7. Statistical analysis 4. Results 4.1. Abnormal morphogenesis and elevated CPT levels following decapitation 4.2. Abnormal morphogenesis following exogenous application of ...
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