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Biomedical subjects

S Burns

Publications and source records attributed to S Burns.

88 records · Page 5Linked to original sources
PubMed1981

Relation of single unit properties to the oculomotor function of the nucleus of the basal optic root (accessory optic system) in chickens.

Single unit recordings in the nucleus of the basal optic root (nBOR) of the accessory optic system in chickens suggest that it has a role in vertical stabilizing eye movements. Cells have unusually large receptive fields and never respond to small stationary stimuli. They respond best to large richly patterned stimuli moving slowly (2-4 degrees/s) in vertical directions. Cells responsive to upward movement tend to be located in the dorsal portion of nBOR, which projects to motor areas producing upward eye movement, whereas cells responsive to downward movement tend to be located in the ventral portion of nBOR, which projects to motor areas producing downward eye movement; this suggests that these synapses onto oculomotor neurons are excitatory. In many nBOR units, the preferred and null directions are not opposite to each other. These directional asymmetries seem to be correlated with other properties of the units in a manner that supports the idea that the accessory optic system is arranged according to a vestibular coordinate system. This finding complements the abundant anatomical and physiological evidence linking the accessory optic system to the vestibular system.

Animals↗
PubMed1980

Self-help groups in a premature nursery-a controlled evaluation.

This study examined the effect discussion groups, held in a neonatal intensive care unit with parents of very small premature infants, had on various measures of later parenting competence. Twenth-eight families who met for seven to ten weeks with a nurse co-ordinator and a "veteran mother" who had given birth to a premature infant within the past year were compared with 29 control families. Parents who had participated in the groups visited their infants significantly more often in hospital than did the control parents. They also touched, talked, and looked at their infants in the en face position more during their visits, and rated themselves as more competent on a number of infant care measures. Three months after discharge of the infants, group mothers continued to show more involvement with their babies during feedings and were more concerned about their general development. The implications of such self-help groups for the later development of high-risk premature infants is discussed.

Adult↗
PubMed1980

Patients, charts, and orders: keeping track.

A simple, inexpensive system for keeping track of charts, orders, and patients in a busy emergency department is described. All orders, except the most urgent, are communicated in writing. A secretary relieves the nurses of secretarial duties, and functions as coordinator of laboratory work and communications. A traffic board, using magnetic markers, allows instant visualization of the state of the department. Swift movement of patients from room to room can occur without losing track of the patient or his chart. A system of six discrete chart stations is used, each denoting a separate task to be done. The chart moves in an orderly manner through stations, giving the staff "at a glance" information about what must be done and how well the department is processing patients. A scribe option is employed in overload conditions, allowing a substantial increase in patient processing.

Emergency Medical Service Communication Systems↗
PubMed1976

Contusion angle deformity in prizefighters.

Ophthalmic examinations of 55 retired boxers showed nine eyes with contusion angle deformities and no cases of secondary glaucoma due to the trauma, despite an average duration of 33 years since injury. The subjects with chamber angle recessions had more proptotic eyes (average, 19.7 mm) than those without recessions (average, 17.9 mm). The difference between the means was not significant (P less than .05).

Adult↗
PubMedDate not supplied

Grading practice.

Explore the source record for details and available documents.

Clinical Competence↗
PubMedDate not supplied

Comparative study: the effects of latex and vinyl gloves on the tactile discrimination of first year dental hygiene students.

The purposes of this study were to determine 1) if there was a significant difference in the tactile discrimination of first year dental hygiene students wearing a vinyl glove as compared to a latex glove; 2) if the subjects' perceptions of their ability to accurately discriminate between surface textures differed when wearing either one of the two gloves; and 3) the individual characteristics of the gloves preferred by the subjects. Twenty-nine first year dental students were randomly assigned to one of the two glove treatment groups. The tactile discrimination ability of each subject was assessed at baseline and three weeks after using the Roughness Discrimination Test (RDT). The subjects wore their assigned gloves when performing laboratory and clinical procedures during the 3-week period. Following this period the RDT was again administered. Subjects then switched gloves for an additional 3-week period, at which time data were collected regarding perceived discrimination ability and glove preference. Data were analyzed using a repeated-measures analysis of variance. Results revealed no significant difference (p less than 0.05) in subject's tactile discrimination ability while 29% indicated that the latex glove had an inhibitory effect. The subjects most frequently preferred the latex glove, citing specific favorable characteristics such as size, fit, comfort and durability while performing clinical procedures. However, the vinyl glove was favored for durability after washing.

Gloves, Surgical↗
PubMedDate not supplied

Study of the sympathetic effects of polocaine in a regional hallux block.

This study was performed on 40 healthy volunteers, and examines the onset, duration, subjective pain on injection, and sympathetic effects of two strengths of Polocaine, a brand of mepivacaine hydrochloride. The study demonstrated that Polocaine is a safe and useful, short-acting, local anesthetic. Polocaine is also a useful agent in causing local vasodilation for periods of time as long as 24 hr.

Adult↗