Prolonged or perpetual growth of replacement teeth in the rock hyrax.

Tusks are ever-growing teeth present in mammals of the clade Paenungulata. Unlike the perpetually growing incisors of rodents, tusks are not used in mastication, and in at least some paenungulatans, the tusk is composed of dentin alone in adults. Few studies have provided tissue-level information on tusks of adult paenungulatans with embedding techniques that identify epithelial and other soft tissues.

Evolutionary divergence of facial muscle physiology between domestic dogs and wolves.

Domestic dogs (Canis familiaris) are descended from gray wolf (Canis lupus) populations that inhabited Western Europe and Siberia. The specific timing of dog domestication is debated, but archeological and genetic evidence suggest that it was a multi-phase process that began at least 15,000 years ago. There are many morphological differences between dogs and wolves, including marked divergence in facial muscle morphology, but we know little about the comparative physiology of these muscles.

Functional microanatomy of the vomeronasal complex of bats.

Recently, Yohe and Krell (The Anatomical Record, vol. 306:2765-2780) lamented the incongruence between genetics and morphology in the vomeronasal system of bats. Here, we studied 105 bat species from 19 families using histology, iodine-enhanced computed tomography (CT), and/or micro-CT.

Development and evaluation of a brief self-completed family history screening tool for common chronic disease prevention in primary care.

Background: Family history is an important risk factor for many common chronic diseases, but it remains underutilised for diagnostic assessment and disease prevention in routine primary care.

Aim: To develop and validate a brief self-completed family history questionnaire (FHQ) for systematic primary care assessment for family history of diabetes, ischaemic heart disease, breast cancer, and colorectal cancer.

Design And Setting: Two-stage diagnostic validation study in 10 general practices in eastern England.

Long-term health experience of jet engine manufacturing workers: IX. further investigation of general mortality patterns in relation to workplace exposures.

Objective: To evaluate mortality rates among a cohort of jet engine manufacturing workers.

Methods: Subjects were 222,123 workers employed from 1952 to 2001. Vital status was determined through 2004 for 99% of subjects and cause of death for 95% of 68,317 deaths.

Long-term health experience of jet engine manufacturing workers: VIII. glioblastoma incidence in relation to workplace experiences with parts and processes.

Objective: To determine whether glioblastoma (GB) incidence rates among jet engine manufacturing workers were associated with workplace experiences with specific parts produced and processes performed.

Methods: Subjects were 210,784 workers employed between 1952 and 2001. We conducted nested case-control and cohort incidence studies with focus on 277 GB cases.

Long-term health experience of jet engine manufacturing workers: VI: incidence of malignant central nervous system neoplasms in relation to estimated workplace exposures.

Objective: To determine whether glioblastoma (GB) incidence rates among jet engine manufacturing workers were associated with specific chemical or physical exposures.

Methods: Subjects were 210,784 workers employed from 1952 to 2001. We conducted a cohort incidence study and two nested case-control studies with focus on the North Haven facility where we previously observed a not statistically significant overall elevation in GB rates.

Examining the relationship between the reconstructed scales and the fake bad scale of the MMPI-2.

This study explores the relationship between the Reconstructed (RC) scales and the Fake Bad Scale (FBS) of the MMPI-2 in the context of a personal injury population to demonstrate which RC scales are susceptible to symptom exaggeration. The sample consisted of 76 compensation-seeking participants who were assessed for neurocognitive dysfunction. A multiple regression analysis was performed to determine the association between the Reconstructed Scale T-scores with the FBS T-scores.

Reflections on the experience of counseling supervision by a team of genetic counselors from the UK.

Despite it being generally acknowledged that counseling supervision is a vital part of the work for experienced genetic counselors and not just students, not all practising genetic counselors in the United Kingdom and Eire have access to this yet. This case study documents the supervision experience of our team of genetic counselors from Cambridge in the U.K.