Biomedical subjects

C Cooper

Publications and source records attributed to C Cooper.

618 records · Page 35Linked to original sources

PubMedDate not supplied

Capillary gas chromatographic determination of naphthalene in bran and wheat germ products.

A method is described for determining naphthalene in bran and wheat germ products. The method involves distilling the naphthalene from a water-cereal mixture and then extracting the distillate with hexane. A 10 microL aliquot of the hexane extract is injected into a gas chromatograph equipped with a capillary column. Dodecan-1-ol is used as the internal standard. Mean recoveries, standard deviations (SD), and coefficients of variation (CV) for samples of unprocessed bran, unprocessed wheat germ, bran flakes breakfast cereal, and sultana bran breakfast cereal, spiked with naphthalene at various levels, were 1.0 ppm spike, mean 0.98, SD 0.09, CV 9.5%; 2.5 ppm spike, mean 2.37, SD 0.22, CV 9.4%; 5.0 ppm spike, mean 4.86, SD 0.19, CV 4.0%; 10 ppm spike, mean 9.25, SD 0.38, CV 4.1%. The mean recoveries exceeded 90% in each case. The detection limit for the method was about 0.5 ppm.

Chromatography, Gas↗

PubMedDate not supplied

The epidemiology of osteoporosis.

Osteoporosis is a skeletal disorder characterised by low bone mass and an increased susceptibility to fracture. The last two decades have seen an increase in our understanding of the epidemiology of fractures at the three most frequent sites (the hip, wrist and vertebral body). These new insights have led to the delineation of preventive strategies against these fractures for both the general population, and those individuals at highest risk. This review covers these descrptive epidemiological characteristics, as well as approaches to prevention.

Female↗

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Landing in difficulties.

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Emigration and Immigration↗

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Cause for alarm.

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England↗

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Postmarketing surveillance of the safety of cyclic etidronate.

To evaluate the safety of cyclic etidronate in routine clinical practice, we obtained information from 550 general practices in the United Kingdom that provide the medical records to the General Practice Research Database. A group of 7977 patients taking cyclic etidronate and two age-, gender-, and practice-matched control groups, one with osteoporosis and one without, were analyzed. For the group taking cyclic etidronate, the average age was 71.6 years and follow-up was 10,328 person-years. Conditions that do not induce osteoporosis generally occurred in these patients at a rate comparable to that in the control groups. The incidence of osteomalacia was low and comparable between patients taking cyclic etidronate and controls with osteoporosis. No medically significant increases in frequency were observed among patients taking cyclic etidronate for a broad group of diseases that may potentially be induced by exposure to the drug. These data support the favorable risk:benefit ratio of cyclic etidronate.

Aged↗

PubMedDate not supplied

The impact of primary and modular nursing delivery systems on perceptions of caring behavior.

PURPOSE/OBJECTIVES: To determine if differences existed in patients' and family members' perceptions of caring behaviors after the transition from a primary to a modular care delivery system. DESIGN: Descriptive, comparative, and correlational. SETTING: Urban, inpatient, acute-care hospital. SAMPLE: A convenience sample of 42 patients with cancer hospitalized for chemotherapy administration or complications arising from their diagnoses and 27 of their family members. Ninety-four data sets were collected--62 from the patients and 32 from the family members. METHODS: Subjects were asked to evaluate their nurse's caring attributes using the Caring Perception index. Caring scores of patients receiving primary nursing care were compared to caring scores of patients receiving modular nursing care. MAIN RESEARCH VARIABLE: Patients' and family members' perception of caring. FINDINGS: Mean caring scores did not differ significantly between patients receiving primary care (mean = 35.9, SD = 5.4) and patients receiving modular care (mean = 36.2, SD = 5.3). Patient and nursing delivery characteristics were used to predict and explain variance in the dependent variable care. Number of days hospitalized accounted for 14% of the variance, with those patients hospitalized longer rating nurses as more caring. CONCLUSIONS: The longer a patient stays in the hospital, the greater the likelihood the patient and family members will feel nurses exceeded exceptions for caring. The findings support other studies that have compared quality care indicators across different types of delivery systems. IMPLICATIONS FOR NURSING PRACTICE: Measures to evaluate quality care should be used when transitioning to new delivery models. Nurses need to recognize that not all patients value the same nurse qualities equally. When receiving care over an extended period of time from same nurse, patients and family members are more likely to rate the nurse as exceeding expectations.

Adult↗