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S S Russell

Publications and source records attributed to S S Russell.

9 recordsLinked to original sources
PubMed1998

Oxygen isotopic abundances in calcium- aluminum-rich inclusions from ordinary chondrites: implications for nebular heterogeneity.

The oxygen isotopic compositions of two calcium-aluminum-rich inclusions (CAIs) from the unequilibrated ordinary chondrite meteorites Quinyambie and Semarkona are enriched in 16O by an amount similar to that in CAIs from carbonaceous chondrites. This may indicate that most CAIs formed in a restricted region of the solar nebula and were then unevenly distributed throughout the various chondrite accretion regions. The Semarkona CAI is isotopically homogeneous and contains highly 16O-enriched melilite, supporting the hypothesis that all CAI minerals were originally 16O-rich, but that in most carbonaceous chondrite inclusions some minerals exchanged oxygen isotopes with an external reservoir following crystallization.

Aluminum↗
PubMed1995

Clinical and developmental findings in children with giant interhemispheric cysts and dysgenesis of the corpus callosum.

Giant interhemispheric cysts in association with dysgenesis of the corpus callosum are rare. Clinical and developmental data concerning affected patients are limited, the pathologic basis for these cysts has not been established, and prognosis is uncertain. The purpose of our study was to describe the clinical and developmental findings for 11 children with giant interhemispheric cysts, dysgenesis of the corpus callosum, and ventricular dilatation. Eight of the children required ventriculoperitoneal shunting, eight had normal neurologic examinations, and seven had experienced seizures. Seizure control appeared to correlate with neurodevelopmental function. Cognitively, children ranged from the average to mildly/moderately retarded level. Language delays were frequent, particularly in children with predominantly left hemispheric cysts. Adaptive behavior was mildly delayed with weakness observed in motor skills. Despite the striking neuroimaging abnormalities, our findings suggest the possibility of only mildly delayed neurodevelopmental outcome is good for children with this constellation of neurologic anomalies.

Agenesis of Corpus Callosum↗
PubMed1995

Recognizing change.

Explore the source record for details and available documents.

Adaptation, Psychological↗
PubMed1989

Effect of stimulus context and response coding variables on word retrieval performances in dysphasia.

Quantitative and qualitative differences between two word retrieval tasks were examined using nonfluent and fluent dysphasic and nondysphasic subjects. Additional variables examined included scoring criteria, trial effects, response trends, and inaccurate responses. Results revealed that the word fluency task was significantly more sensitive than the picture-naming context. Similarly, the variable of response time was identified as the more discriminating response scoring procedure. In addition to these two variables, the data on response trends and inaccurate responses provided significant information for differentiating nonfluent and fluent dysphasias. Discussion relates to the implications of the obtained findings for differential diagnosis and measuring language recovery in dysphasia.

Aged↗
PubMedDate not supplied

Acceptance of auxiliary health worker in rural Iran.

A pilot project to train and deploy low-level rural health auxiliaries is being carried out in southern Iran. This first group of 16 village health workers (VHW) went to work in the initial 16 project villages early in 1974. The group consisted of 11 men and 5 women ranging in age from 15 to 45. These workers are taught to treat simple medical conditions, to practice preventive health measures, and to conduct health education and visit programs. Six months after initial deployment to the villages, a sample survey of 226 villagers was carried out to determine what characteristics of the VHW and of the consumers were associated with greater acceptance of the VHW's work and his or her role in the village. The results indicated that both male and female health workers are accepted in an equivalent role, and that workers returning to their own villages are no more or no less likely to have difficulties in gaining acceptance than are those returning to a different village. It was found that experience with a VHW of a particular sex could significantly alter attitudes toward the preferred for the VHW. The age of the worker was the only variable closely associated with the villagers' confidence in the worker--the older the VHW, the higher the villagers tended to rate his or her knowledge. In Iran, as in many developing countries, the rural village tends to be a closed, male-dominated group. The experience of the VHWs in Iran makes it apparent that the health worker, regardless of sex, age, or village of origin, can gain the confidence and respect of the villagers.

Adolescent↗