Search PubMed⌕ Search

Biomedical subjects

L Porter

Publications and source records attributed to L Porter.

51 records · Page 3Linked to original sources
PubMed1986

The development of an observation schedule for measuring nurse-patient touch, using an ergonomic approach.

An observation schedule for recording nurse-patient touch was developed, using an ergonomic approach to design. A preliminary study using video-tape analysis and a ward survey indicated that 'instrumental touch' was more frequently employed by nursing staff than 'expressive touch'. Three levels of relevant information relating to touch were recorded: General circumstances (the type of hospital, etc.); Demographic variables (relating to participants in the touch episode); Events specifically relating to the touch episode. The third section of the schedule was tested in an acute geriatric ward, using inter-observer reliability techniques. Reliability was found to be acceptable for those where the criteria for categorization were reasonably objective. It was concluded that an instrument for recording nurse-patient touch has useful applications for both ergonomic and nursing research.

Adult↗
PubMed1985

Sonography of arcuate uterine blood vessels.

Five sonographic cases are presented with images that demonstrate normal arcuate arteries and peripheral uterine blood vessels. These vascular structures are shown in both the longitudinal and transverse sections, and should not be confused with pathology such as Nabothian cysts, hydrosalpinx, pelvic inflammatory disease, hydatid cysts of Morgagni, endometriosis, or abnormal pelvic varices.

Adult↗
PubMed1976

Mental health centers and the criminal justice system.

Through questionnaires, interviews, and site visits, the authors undertook to ascertain to what extent the 26 community mental health centers in Kansas were contributing to the resolution of problems that concern the criminal justice system. They found that in all large communities some reciprocal programs have developed between the two systems, but meaningful collaboration is rare in small communities. Juvenile courts, urban law enforcement agencies, and county probation officers are most receptive to collaborative programs. An evaluation of several effective programs revealed three basic conditions that attribute to their success: an urban community setting, individual initiative by staff from each system, and location of the program within the criminal justice system.

Adolescent↗
PubMed1976

Cell-mediated destruction of human leukemic cells by MHC identical lymphocytes: requirement for a proliferative trigger in vitro.

These experiments have investigated cellular mechanisms involved in the generation of cellular immune responses to human acute leukemic blasts. Because normal human lymphocytes are not able to recognize immunologically, in vitro, lymphocytes from MHC identical siblings, the present studies have examined the in vitro proliferative and cytotoxic responses of normal lymphocytes to MHC identical AML and ALL blasts. In those cases where acute leukemic cells were unable to induce a proliferative response by MHC identical lymphocytes, the generation of effective anti-leukemic cytotoxicity required the addition of unrelated stimulating cells to the sensitization culture. In contrast, leukemic blasts that induced a proliferative response by MHC identical lymphocytes were also able to stimulate anti-leukemic cytotoxicity. This could be augmented by the addition of unrelated stimulating cells to the sensitization culture. The specificity of anti-leukemic cell cytotoxicity was demonstrated in all instances by simultaneous testing of putative killer cells on 51Cr leukemic blasts as well as 51Cr-labeled MHC identical phytohemagglutinin blasts or normal lymphocytes. Simultaneous sensitization to MHC identical leukemic blasts and unrelated stimulating lymphocytes did not invariably generate anti-leukemic cytotoxicity even when allogeneic cytotoxicity was observed; the absence of demonstrable suppressor activity in these nonreactive combinations suggested that some individuals may be specifically immunoincompetent, and thereby unable to generate effective anti-leukemic CML.

Cell Transformation, Neoplastic↗
PubMedDate not supplied

Effect of chronic stress associated with unemployment on salivary cortisol: overall cortisol levels, diurnal rhythm, and acute stress reactivity.

This study examined the effect of chronic stress associated with unemployment on the magnitude of salivary cortisol excretion, on the diurnal rhythm of cortisol, and on cortisol reactivity to acute naturalistic stressors using Experience Sampling Methodology (ESM). Employed (N = 60) and unemployed (N = 60) subjects were studied for 2 days. Subjects were beeped 6 times per day by a preprogrammed wristwatch to assess acute stressors; 25 minutes after each ESM-beep, subjects were beeped a second time for saliva samples. The groups did not differ in their overall cortisol excretion or in cortisol reactivity to acute daily stressors. Compared to employed subjects, unemployed subjects had a diurnal pattern of cortisol excretion with relatively higher morning and lower evening levels. Subjects' daily activities and their locations were associated with diurnal rhythm differences.

Adult↗