We developed quantitative estimates of historical exposures to respirable elemental carbon (REC) for an epidemiologic study of mortality, including lung cancer, among diesel-exposed miners at eight non-metal mining facilities [the Diesel Exhaust in Miners Study (DEMS)]. Because there were no historical measurements of diesel exhaust (DE), historical REC (a component of DE) levels were estimated...

Boosting is one of the most popular methods for constructing ensembles. The objective of this work is to present a boosting algorithm for regression based on the Regressor-Boosting algorithm, in which we propose the use of REC curves in order to select a good threshold value, so that only residuals greater than that value are considered as errors. The algorithm was empirically evaluated and its...

Here we report the cytogenetic and clinical manifestations observed in a patient with a rec(20)dup(20p)inv(20)(p11.2q13.3)mat. The patient was a full-term newborn girl with asymmetric intrauterine growth restriction and multiple congenital malformations, including a ventricular septal defect, pulmonary atresia, ambiguous genitalia, clinodactyly, and sacral dimpling. To our knowledge, this is th...

In a recent article in this journal our unit was accused of a number of errors of judgment in applying covert video surveillance (CVS) to infants and children suspected of life-threatening abuse. The article implied, that on moving from the Royal Brompton Hospital in London to North Staffordshire Hospital, we failed to present our work to the Research Ethics Committee (REC). We did send our pro...

Social media (SM) research presents new challenges for research ethics committees (RECs) who must balance familiar ethical principles with new notions of public availability. This article qualitatively examines how U.K. REC members view this balance in terms of risk and consent. While it found significant variance overall, there were discernible experience-based trends. REC members with less ex...

To evaluate the long-term surgical outcomes of inferior oblique muscle recession (IO Rec) for the treatment of superior oblique palsy (SOP). We retrospectively studied 18 consecutive patients who had undergone IO Rec for the treatment of SOP. A follow-up of at least five years after the operation was required to be included in the study. In results the preoperative vertical deviation was 10.6 ±...

The plasmid pNov2, carrying a cloned chromosomal marker conferring resistance to at least 2.5 micrograms of novobiocin per ml, was constructed with a new Haemophilus influenzae cloning vehicle, pDM2. The novobiocin marker of pNov2 was not normally expressed, but in Rec+ cells approximately one in 10(4) cells in a culture of a transformant became novobiocin resistant, a frequency about four orde...

Introduction Periodontal regeneration (PR) has provided the practitioner with a more conservative therapeutic strategy for the treatment of infrabony periodontal defects. In fact, PR not only helps reducing periodontal pocket depth (PPD), but it also allows to gain clinical attachment level (CAL) with minimal negative effects on gingival recession (REC), which is particularly important when tre...

The flow of fluid past a cylinder has been widely studied both analytically and numerically, and provides insight to the behavior of flow given different fluid properties. Particularly interesting is the transition from steady flow to vortex shedding in the wake of the cylinder. This behavior is dependent on several parameters, but most importantly, the Reynolds number (Re), which is a dimensio...

An evaluation of the humoral response based on secretory immunoglobulin A levels in the saliva of pulmonary tuberculosis (TB) acid-fast bacillus-positive (TB-AFB+) patients against a recombinant 38 kDa antigen (Ag38-rec) is reported. A total of 60 saliva samples consist of 30 TB-AFB+ patients and 30 healthy controls were tested against 500 ng of semi-purified antigen using the dot blot method. ...