Carl Reddy

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BACKGROUND Dyspnea is the major limiting symptom for patients with chronic obstructive pulmonary disease (COPD). This study was designed to investigate the impact of the combination of two bronchodilators on perception of dyspnea in these patients. METHODS Twenty patients with moderate to severe COPD (age was [mean +/- standard deviation (SD)] 64 +/- 7(More)
STUDY OBJECTIVE s: To analyze the perception of sexual content (PSC) of tobacco advertisements and its potential impact on the process of smoking in adolescents. DESIGN, PARTICIPANTS, AND SETTING A questionnaire was administered to 1,186 adolescents at the National Institute of Respiratory Diseases in Mexico City to determine the PSC. In addition, age,(More)
In the present investigation a pot culture experiment was conducted using sterile, phosphorus deficient soil to study the effect of flyash at 3 different concentrations (10g, 20g and 30g flyash/kg soil) on the infectivity and effectiveness of VAM fungus Glomus aggregatum in pigeonpea (Cajanus cajan (L.) Millsp.) cv Maruti. The flyash amendment in soil at(More)
BACKGROUND Tuberculosis (TB) continues to be a major global health problem. While progress has been made to improve TB cure rates, South Africa's 76 % smear-positive pulmonary TB (PTB) case cure rate remains below the WHO target of 85 %. We report on the trends of TB smear non-conversion and their predictors at the end of an intensive phase of treatment,(More)
A baiting technique was developed to estimate the population ofDrechslera nodulosa (Berk. and Curt.) Subram. and Jain in soil by using susceptible ragi (Eleusine coracana Gaertn.) culms. The number of lesions developed on baited culms were reduced with the reduction in concentration ofD. nodulosa propagules in both sterilized and unsterilized soils. Based(More)
BACKGROUND Tuberculosis (TB) surveillance data are crucial to the effectiveness of National TB Control Programs. In South Africa, few surveillance system evaluations have been undertaken to provide a rigorous assessment of the platform from which the national and district health systems draws data to inform programs and policies. OBJECTIVE Evaluate the(More)
INTRODUCTION Meningitis is a major cause of mortality in southern Africa. We aimed to describe the aetiologies and frequencies of laboratory-confirmed fungal and bacterial meningitis among adults in a South African province with an 11% HIV prevalence, over 4 years. METHODS We conducted a retrospective, observational study of secondary laboratory data,(More)
The high field electrical switching behaviour of lithium–phospho–vanadate glasses has been studied by determining the current–voltage characteristics. The investigated glasses exhibit temperature, thickness and composition dependent trends. At low current, the I–V characteristics obey Ohm’s law followed by a negative resistance region where the bulk(More)
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