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Biomedical subjects

R Wright

Publications and source records attributed to R Wright.

At least 325 records · Page 18Linked to original sources
PubMed1961

Studies on Media for Enumerating Enterococci in Frozen Vegetables.

A study was made of the relative sensitivity and specificity of presumptive and confirmatory media for the most probable number enumeration of enterococci in frozen vegetables. Azide dextrose broth yielded the highest numbers of confirmable enterococci and its sensitivity was shown to be comparable to nonselective media. The use of ethyl violet azide broth as a confirmatory medium resulted in a significant number of false positive tests. Growth in broth containing 6.5% sodium chloride incubated at 45 C for 2 days was found to be a more specific confirmatory test for enterococci.

Journal Article↗
PubMedDate not supplied

Pregnancy complicated by autoimmune polyglandular syndrome type II: a case report.

Autoimmune polyglandular syndrome may complicate pregnancy and be confused with hyperemesis gravidarum as a cause of hypoglycemia and electrolyte imbalance in the first trimester of pregnancy. Autoimmune polyglandular syndromes are uncommon disorders characterized by the development and presentation of multiple endocrine and organ dysfunction. To our knowledge, we present the first case of an autoimmune polyglandular syndrome complicating pregnancy. A 26-year-old woman, gravida 5 para 3 at 12 weeks gestation, presented with hyperemesis and signs and symptoms consistent with adrenal insufficiency and hypothyroidism. Evaluation revealed autoimmune polyglandular syndrome type II. Autoimmune polyglandular syndromes are a myriad group of diseases characterized by polyglandular dysfunction. These syndromes should be kept in mind when dealing with pregnant patients presenting with hyperemesis and an electrolyte imbalance who do not improve with the usual treatment for hyperemesis. An endocrine dysfunction such as polyglandular syndrome may exist.

Addison Disease↗
PubMedDate not supplied

Race, region and the territorial politics of immigration in the US.

Zelinsky and Lee recently unveiled a model of the sociospatial process of immigrant settlement designed to augment and possibly supplant the well-known theories of assimilation and pluralism. Although in some ways new, their work continues a tradition in social science that treats the settlement geography of immigrants as a measure of their more general fit into American society. The authors question the prevailing assumption that immigrant settlement patterns represent a barometer of their adaptation, or lack thereof, to a host society. This critique of the concepts of assimilation, pluralism and Zelinsky and Lee's alternative "heterolocal" model of immigrant settlement pivots around the issues of spatial scale and race. The authors argue that the contestations over immigration and how well immigrants fit into society are increasingly constructed at the regional scale. The authors also assert that questions race infuse almost all aspects of these debates. The transformation of America's largest city-regions into places of non-White immigrants, and the shifting political balance of power to states like California through immigration-driven reapportionment, are touchstones for anti-immigration initiatives and associated local and national debate. Fear of racial regional changes underpins an increasingly powerful response to immigration. The reactions elicited by these settlement geographies fall under the heading the authors call the "territorial politics of immigration".

Acculturation↗
PubMedDate not supplied

Junction road accidents during cross-flow turns: a sequence analysis of police case files.

In-depth studies of behavioural factors in road accidents using conventional methods are often inconclusive and costly. In a series of studies exploring alternative approaches, 200 cross-flow junction road accidents were sampled from the files of Nottinghamshire Constabulary, UK, coded for computer analysis using a specially devised Traffic Related Action Analysis Language, and then examined using different computational and statistical techniques. For comparison, the same analyses were carried out on 100 descriptions of safe turns, and 100 descriptions of hypothetical accidents provided by experienced drivers. The present study employed a range of sequence analysis techniques to examine the patterns of events preceding accidents of different types. Differences were found between real accidents, hypothetical ones and safe turns; between accidents turning onto and off a road with the right of way; between the accidents of younger and older drivers; between accidents on minor roads and major roads; and between the accident expectations (but not the real accidents) of male and female drivers. Pairs of successive events often provided particularly good cues for discriminating accident types.

Accidents, Traffic↗
PubMedDate not supplied

Disorders of the long head of the biceps tendon.

Without a clear understanding of the functional role of the biceps tendon, treatment recommendations have been a subject of controversy. An objective review of the available information would suggest that some humeral head stability may be imparted through the tendon. However, the magnitude of this function is likely to be small and possibly insignificant. In contrast, the symptomatic significance of the long head of the biceps is less controversial, and it has become increasingly recognized as an important source of persistent shoulder pain when not specifically addressed. When present, persistent pain from the long head of the biceps is likely to have more negative functional consequences than loss of the tendon itself. Given these concerns, evaluation and treatment of patients with long head of the biceps disorders should be individualized, based on the likelihood that biceps-related pain will resolve. Although not universally accepted, we recommend tenodesis of the long head of the biceps in those cases in which there are either chronic inflammatory or structural changes, which would make it unlikely that the pain would resolve. These clinical situations in which tenodesis would be required include greater than 25% partial thickness tearing of the tendon, chronic atrophic changes of the tendon, any luxation of the biceps tendon from the bicipital groove, any disruption of associated bony or ligamentous anatomy of the bicipital groove that would make autotenodesis likely (i.e., 4-part fracture), and any significant reduction or atrophy of the size of the tendon that is more than 25% of the normal tendon width. Relative indications for biceps tenodesis also include biceps disease in the context of a failed decompression for rotator cuff tendinitis. It should be emphasized that routine tenodesis is not recommended during operative treatment for the rotator cuff. Rather, we avoid tenodesis whenever it is believed that inflammatory changes to the biceps tendon are reversible. Because of this, tenodesis is not required in most cases.

Elbow Joint↗