نتایج جستجو برای: conversion rates
تعداد نتایج: 542671 فیلتر نتایج به سال:
Laparoscopic resection for colon and rectal cancer is associated with quicker return of bowel function, reduced postoperative morbidity rates and shorter length of hospital stay compared to open surgery, with no differences in long-term survival. Conversion to open surgery is reported in up to 30% of patients enrolled in randomized control trials comparing open and laparoscopic colorectal resec...
Background It has been demonstrated that human milk from mothers who have infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) contains antibodies against the virus, which could play an important role in protecting recipient infant disease 2019 (COVID-19). Seroconversion is measured frequently around world, but conversion rate unknown. Research Aims To determine (1) preval...
BACKGROUND & OBJECTIVE New smear-positive pulmonary tuberculosis (PTB) patients in the Revised National Tuberculosis Control Programme (RNTCP) are treated with a 6-month short-course chemotherapy (SCC) regimen irrespective of co-morbid conditions. We undertook this retrospective analysis to compare sputum conversion rates (smear, culture) at the end of intensive phase (IP) of Category-1 regimen...
The goal of this research is to evaluate the effect of ad rank on the performance of keyword advertising campaigns. We examined a large-scale data file comprised of nearly 7,000,000 records spanning 33 consecutive months of a major US retailer’s search engine marketing campaign. The theoretical foundation is serial position effect to explain searcher behavior when interacting with ranked ad lis...
BACKGROUND Little is known about the time to sputum culture conversion in MDR-TB patients co-infected with HIV, although such patients have, historically, had poor outcomes. We describe culture conversion rates among MDR-TB patients with and without HIV-co-infection in a TB-endemic, high-HIV prevalent, resource-limited setting. METHODS Patients with culture-proven MDR-TB were treated with a s...
In most flow systems, the rate of protein transfer from bulk solution to a macroscopic surface is site-dependent. In studies on surface-mediated protein conversion, this hampers the comparison of a proposed expression for the conversion process, such as the Michaelis-Menten equation, which actually measured overall conversion rates. However, the rotating disc is a classical example of a uniform...
MoOx species dispersed as small domains on Al2O3, ZrO2, and SnO2 catalyze the oxidative conversion of dimethylether to formaldehyde with high primary selectivity (80–98% HCHO, CH3OH-free basis) at low temperatures (500–550 K). The reaction appears to proceed via redox cycles using lattice oxygen and turnover rates increase with the size and reducibility of MoOx domains. Dimethylether conversion...
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