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Biomedical subjects

V Carlson

Publications and source records attributed to V Carlson.

16 recordsLinked to original sources
PubMed2000

Technology enhanced learning for occupational and environmental health nursing: a global imperative.

One strategy for decreasing the barriers to higher education and for increasing the competency and performance of the occupational and environmental health nurse in the information age is technology enhanced learning. Technology enhanced learning encompasses a variety of technologies employed in teaching and learning activities of presentation, interaction, and transmission to on campus and distant students. Web based learning is growing faster than any other instructional technology, offering students convenience and a wealth of information.

Computer-Assisted Instruction↗
PubMed1998

Culture-confirmed reinfection of a person with different strains of Borrelia burgdorferi sensu stricto.

In recent years, the utility of serum-based diagnostic testing for Lyme disease has improved substantially; however, recovery by culture of the bacterium from skin biopsies of suspected patients is still the only definitive laboratory test. Reinfection of patients has been assumed to occur but as yet has not been documented by serial isolates from the same person. We present a case of culture-confirmed reinfection of a patient in Menominee County, Michigan. Borrelia burgdorferi was isolated from the skin punch biopsy specimens during each episode of erythema migrans (EM) and was subjected to molecular strain typing, genetic analysis of two outer surface protein genes, protein profile analysis, and serum antibody response testing. Results show that these isolates are distinct strains of the bacterium and that the two episodes of EM were caused by independent infections. This report describes the documented, culture-confirmed reinfection of a human by two different strains of B. burgdorferi.

Antibodies, Bacterial↗
PubMed1997

Relationship between changes in EMG and respiratory sinus arrhythmia in a study of relaxation therapy for asthma.

This paper reports the relationships among changes in cardiovagal activity, surface EMG, and measures of pulmonary function in a study of relaxation therapy for asthma. Changes in FEV1/FVC were negatively correlated with those in cardiac interbeat interval, consistent with the hypothesis that relaxation-induced changes in airway function are mediated autonomically, with increased vagal tone and/or decreased sympathetic arousal producing bronchoconstriction. Contrary to Kotses's theory of a vagal-trigeminal reflex as mediator for relaxation-induced improvement in asthma, decreases in pulmonary function occurred during relaxation sessions, accompanied by increases in cardiovagal activity, and within-session changes in frontal EMG in the first session of training were positively associated with changes in a measure of pulmonary function (FEV1/FVC). However, consistent with this hypothesis, first-session frontalis EMG changes were positively associated with changes in respiratory sinus arrhythmia, and last-session changes in cardiac interbeat interval were positively associated with changes in FEV1/FVC. The results suggest that the immediate effects of generalized relaxation instruction can be associated with a parasympathetic rebound, which, in tum, may induce countertherapeutic changes in asthma. However, the effects of specific facial muscle relaxation remain unclear.

Adult↗
PubMed1994

Relaxation and music therapies for asthma among patients prestabilized on asthma medication.

One hundred six asthmatic subjects were medically prestabilized, then assigned to eight sessions of progressive relaxation, music, or a waiting-list. Seventy-two subjects completed treatment, of which 37 were evaluated in the laboratory with measures of forced expiratory flow. Relaxation-group subjects reported feeling the most deeply relaxed and produced the greatest improvement in forced expiratory flow during the last presession assessment period. All groups evidenced decreases in asthma symptoms. All groups showed decreases in pulmonary function immediately after relaxation sessions. None of the changes in pulmonary function reached levels that are accepted in drug trials to be of clinical significance, and the therapeutic changes occurred only in the situation where training was rendered. Listening to music produced greater decreases in peaks of tension than progressive relaxation, and it produced greater compliance with relaxation practice, but it did not produce any specific therapeutic effects on asthma.

Adolescent↗
PubMed1994

Isolation of Borrelia burgdorferi from two patients in Michigan.

Borrelia burgdorferi was isolated from skin biopsy specimens of erythema chronicum migrans lesions on two individuals residing in Menominee County, Michigan, in 1992. To our knowledge, these are the first two cases of culture-confirmed Lyme disease in Michigan. In spite of prompt treatment and resolution of illness, antibodies to B. burgdorferi were detectable for at least 3 months in both patients. Both specimens were obtained at different rural medical practices, thus demonstrating that with adequate laboratory support it is feasible to confirm a diagnosis of acute Lyme disease by culture in rural health care settings.

Adult↗
PubMedDate not supplied

Technology-enhanced learning/distance education: market survey of occupational health and safety professionals.

A market survey of occupational health and safety professionals was performed to assess their interest in course work offered through distance education, using technology-enhanced learning methods such as the Internet or CD-ROM. A random sample of 800 active and student members of the American Industrial Hygiene Association, the American Association of Occupational Health Nurses, and the American Society of Safety Engineers from the eight-state Midwest region were queried through a mail survey. Respondents expressed a high likeliness (87.4%) to participate in distance education opportunities for the purposes of continuing education and academic degree. The areas of study interest selected most often were occupational health (73%), injury prevention and control (60%), and industrial hygiene (53%). More than three-quarters of respondents (79%) said that an on-campus component was not important to their learning experience. The majority of respondents (68%) indicated that they were reimbursed for the cost of education with significant differences identified by association. Occupational health and safety professionals are interested in distance education using technology-enhanced learning (TEL) methodologies for meeting their educational needs. TEL/distance education, built on a tested educational approach, should be implemented and outcomes shared to increase the body of knowledge regarding these teaching strategies as they pertain to occupational health and safety professionals.

Curriculum↗