BACKGROUND We investigated the epidemiology and prevalence of potential risk factors of tuberculosis (TB) recurrence in a population-based registry cohort of 8084 TB cases between 1995 and 2013. METHODS An episode of recurrent TB was defined as a case re-registered in the National Infectious Disease Register at least 360 days from the date of the initial registration. A regression model was u...

Avian song learning is an important model system for understanding vocal learning in humans and other animals. Laboratory studies indicate that social interactions are critical for song learning, but field observations show that territorial males are aggressive to intruders, raising the question of whether young birds are tolerated, much less tutored in the wild. We examined how adult song spar...

The atmospheric Ar/N2 ratio is expected to be useful as a tracer of air-sea heat exchange, but this application has been hindered in part due to sampling artifacts. Here we show that the variability in δ(Ar/N2) due to thermal fractionation at the inlet can be on the order of 40–80 per meg, and we introduce the use of an aspirated solar shield that successfully minimizes such fractionation. The ...

Editor's Note: It seems appropriate, in this issue of JSS containing the ®ndings of our annual Top Scholars/Institutions study, to pay tribute to the persistent authors who make a journal like this, and a study like that, possible. In their honor, we dedicate the following humorous, anonymously-authored, letter! Dear Sir, Madame, or Other: Enclosed is our latest version of Ms. #1996-02-22-RRRRR...

We consider likelihood based inference in a class of logistic models for case-control studies with a partially observed covariate. The likelihood is a combination of a nonparametric mixture, a parametric likelihood and an empirical likelihood. We prove the asymptotic normality of the maximum likelihood estimator for the regression slope, the asymptotic chisquared distribution of the likelihood ...

Abstract In this special issue, I bring together two studies to provide a comprehensive overview on diverse and interactive instructional methods aimed to facilitate higher levels of learning. One study explored the effects of group interaction using different instructional strategies focusing on the learning process using the Community of Inquiry framework. The other study investigated the eff...

CONTEXT Immigration is a major force sustaining the incidence of tuberculosis (TB) in the United States. OBJECTIVE To describe trends and characteristics of foreign-born persons with TB and the implications for TB program planning and policy development. DESIGN, SETTING, AND SUBJECTS Descriptive analysis of US TB surveillance data from case reports submitted from 1993 to 1998. MAIN OUTCOM...

Many researchers have focused on the question of whether or not there is a difference in learning effectiveness between online and on campus courses. Using the SOLO taxonomy, we explore the quality of learning outcomes of students enrolled in “Computer Network and Internet” classes offered by an institution in wholly online and face to face (blended) learning modes. Students enrolled in the F2F...

The need for better drugs to treat tuberculosis has never been greater. Despite insufficient funding for discovery research, intensive efforts have been made to find and develop new lead compounds capable of reducing the duration of the present treatment known as DOTS (directly observed therapy short course), from 6 to under 4 months. This minireview describes the progress achieved during the l...