High power carbon dioxide lasers have successfully been used in drilling or cutting ngineering materials such as metals, polymers and ceramics over the years. Can a arbon dioxide laser be used to efficiently drill different rocks in a deep gas well? esearch sponsored by US Department of Energy has been carried out to answer this uestion. This paper will report the study results of using a super...

PURPOSE OF REVIEW Tuberculosis (TB) remains a global emergency and continues to kill 1.7 million people globally each year. Drug-resistant TB is now well established throughout the world and most TB patients are not being screened for drug resistance due to lack of laboratory resources and rapid accurate point-of-care tests. Accurate and rapid diagnosis of TB and drug-resistant TB is of paramou...

BACKGROUND Acquired resistance to second-line drugs (SLDs) is a problem in treating patients with drug-resistant tuberculosis worldwide. The objectives of this study were to identify risk factors for acquired resistance (AR) to injectable SLDs (INJ SLDs) and fluoroquinolones in the US National tuberculosis Surveillance System, 1993-2008. METHODS We selected cases for which the initial and fin...

BACKGROUND Pre-diagnosis attrition needs to be addressed urgently if we are to make progress in improving MDR-TB case detection and achieve universal access to MDR-TB care. We report the pre-diagnosis attrition, along with factors associated, and turnaround times related to the diagnostic pathway among patient with presumptive MDR-TB in Bhopal district, central India (2014). METHODS Study was...

external fluted feed rolls are commonly used in grain drills. the fluted feed roll meters a volume of seeds and does not singulate the seeds as do the precision planters; therefore, there will be inherent variation in the number of seeds delivered per unit of time. this research was conducted to investigate the effect of seed meter drive shaft and ground speeds and outlet positions in a grain d...

This study presents finite element analysis of double split tee (DST) connections with high-strength steel bolts and coupled sections, to evaluate various cyclic response parameters elements. The investigation included quantifying connection behavior hysteretic response, damage indexes, failure modes. Over 40 specimens were simulated in ABAQUS under loading, including shape memory alloy (SMA)-b...

BACKGROUND Resistance to commonly used antituberculosis drugs is emerging worldwide. Conventional drug-susceptibility testing (DST) methods are slow and demanding. Alternative, rapid DST methods would permit the early detection of drug resistance and, in turn, arrest tuberculosis transmission. METHODS A cost-effectiveness analysis of 5 DST methods was performed in the context of a clinical tr...

erated interest and excitement in psychological research, as demonstrated by the recent statement, “...the dynamical perspective has emerged as a primary paradigm for the investigation of psychological processes at different levels of personal and social reality” (Vallacher et al., 2010, p. 263). What is less clear to the authors is the degree to which this excitement is justified. Like many ps...

An unphumed, but unique, experiment has given an in situ measurement of the strength of deforming subglacial till under the central region of a major valley glacier. We report on both planned and unplanned borehole investigations of the subglacial shear zone of Columbia Glacier, southeast Alaska. Basal samples, coring and down-hole water samples show that the fiord-filling lower reach of the •a...