Biomedical subjects
A Whitaker
Publications and source records attributed to A Whitaker.
Suicide among schizophrenics. Who is at risk?
Schizophrenic patients are at high risk for suicide. Most of the clinical features of the illness which have been associated with suicide remain speculative. This study provides an empirical test of hypothetical risk factors from the literature. Results indicate that schizophrenic patients who kill themselves have high internalized standards of performance which are often congruent with past educational attainments. They are also realistically aware of the effects of their illness, feel inadequate in relation to their goals, and fear further mental disintegration. Their affect is depressed, and they express hopelessness about the future. Suicidal ideation and explicit suicide threats often precede death. These results can be used to assess suicide risk among schizophrenic patients.
Dealing with suicide on a psychiatric inpatient unit.
Suicide on an inpatient unit can cause severe trauma among patients and staff. Consequently both groups may revert to less adaptive coping styles. In general, staff's recovery is gradual and natural and may yield an opportunity for emotional growth; however, prolonged disability may also occur. The authors interviewed 23 staff members who had worked on an inpatient unit during a 16-month period when four patients committed suicide. On the basis of these interviews, the authors have developed a framework for understanding the three phases of staff reaction to suicide and guidelines for helping staff through the recovery process. They recommend that ward administrators monitor and facilitate the group process by providing protection and support during the initial phase of shock, appropriate channels and limits for the intense feelings that occur during the second phase, and constructive forums for more mature coping activities during the third phase, as staff regain their equilibrium.
Private self-consciousness, public self-consciousness, and trait anxiety.
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The production of alpha-amylase in batch and chemostat culture by Bacillus stearothermophilus.
The production of alpha-amylase (alpha-1,4-glucan 4-glucanohydrolase; EC 3.2.1.1) by a strain of Bacillus stearothermophilus isolated from leaf litter was investigated in a tryptone-maltose medium at 55 degrees C in batch and chemostat culture. Amylase production was growth-limited and restricted to the exponential phase in batch culture. The enzyme yield was reduced by 40% when the culture pH was maintained at pH 7.2. Amylase production in chemostat culture was influenced by the growth rate throughout the dilution rate range used.
Phonocardiographic study of sounds produced by a circulatory assist device: report of a patient with a ruptured ventricular system.
A patient had a ruptured ventricular septum due to an acute anterior myocardial infarction. An aortic balloon pump was inserted and a subsequent phonocardiographic study was made showing inflation and deflation sounds and the diastolic pulse wave generated. This study defines the extra sounds and pulses generated by such a device so that they may be better understood for clinical interpretation.
Shutter attachment for photographically aligning a Weissenberg camera.
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Actinomycetes in submerged culture.
The range of morphological forms of actinomycetes in shaken flask culture and fermenters is reviewed. Some of the factors that influence pellet formation and its prevention are discussed. The relationship between morphology and production of antibiotics and other metabolites is also examined.
Suicide among schizophrenics: a review.
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