Radiographic measurements of the canine trachea consistently underestimate tracheal size, and CT measurements are preferable for selecting tracheal stent size.

This paper examines the attitudes of 35 male and 122 female college students toward six target groups of elderly individuals: males and females aged 65-74, 75-99 and 100 or older. A twenty-item semantic differential scale was used. Findings support the conclusion that the elderly are perceived as a heterogeneous group with age being an important discriminator, and with gender being less potent but, nevertheless, important. Older target groups were perceived less favorably than younger target groups, but actual values of attitude scores indicate that the least favorable means were in a neutral affect range rather than the more extreme negative range of possible scores. Finally, the effects of several characteristics of respondents on attitudes toward the elderly were examined. Only modest differences were found, suggesting that perceived differences between target groups are widely shared. Implications are discussed.A review of the literature on attitudes and perceptions of youth toward the elderly strongly suggests that the old are often viewed in a negative light (

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Ibn Faḍlān's account of the caliphal embassy from Baghdad to the King of the Volga Bulghārs in the early fourth/tenth century is one of our principal, textual sources for the history, ethnogenesis and polity formation of a number of tribes and peoples who populated Inner Asia. Of especial significance is his description of a people whom he calls the Rūsiyyah. Attempts to identify this people have been the stuff of controversy for almost two centuries and have largely focused on how this description can be made to contribute to the Normanist Controversy (the principal, but by no means the only, controversy concerns the extent of Viking involvement in the creation of Russia). This article provides a fresh, annotated translation of Ibn Faḍlān's passage and considers a multiplicity of identities for the Rūsiyyah.

Minimizing the volume of contrast administered for contrast-enhanced computed tomography (CT) of the equine head is desirable for reducing costs and risks of adverse reactions, however evidence-based studies on the effects of varying volumes on image quality are currently lacking. The objective of the current study was to determine whether low-volume intraarterial administration of contrast medium would result in an equivalent image quality and tissue attenuation vs. high-volume intravenous bolus administration. A prospective cross-over experimental design was used in a sample of six horses. After anesthetic induction, the right carotid artery was exposed surgically and catheterized. Four CT scans of the cranium were performed for each horse: baseline, immediately following intraarterial contrast injection, five-min postinjection (return to baseline) and a final scan after intravenous contrast administration. Soft tissue attenuation in predetermined regions of interest (ROI); and length, width, and height measurements of the pituitary gland were recorded at each time point. Horses were euthanized and measurements of the pituitary gland were repeated postmortem. No adverse reactions to contrast administration were observed. Intraarterial and intravenous administration of contrast medium resulted in significantly greater soft tissue enhancement of some brain ROI's and the pituitary gland vs. baseline values. Pituitary gland measurements made on postcontrast CT images did not differ from those obtained during postmortem examination. Findings indicated that low-dose intraarterial administration of contrast material in the equine head resulted in comparable soft tissue enhancement vs. high volume intravenous administration.