Oral hygiene contributes to good nutrition in cancer patients.
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Humans↗
Biomedical subjects
L R Phillips
Publications and source records attributed to L R Phillips.
Identification and determination of a carboxylic acid metabolite of chloroquine in human urine by high-performance liquid chromatography.
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Chemical Phenomena↗
Pain control and rational thinking. Implications for rheumatoid arthritis.
In this study, we examined the factor structure of the Coping Strategies Questionnaire and studied the relevance of the coping process to health status in rheumatoid arthritis patients. The 2 factors of the questionnaire that were analyzed were Coping Attempts and Pain Control and Rational Thinking. The Pain Control and Rational Thinking factor was related to pain and psychological status, even after demographic variables and disease severity were statistically controlled. In addition, increases in Pain Control and Rational Thinking scores were related to improvements in pain, psychological status, and health status. Implications for the psychological care of rheumatoid arthritis patients are discussed.
Adaptation, Psychological↗
Electrochemically assisted fast atom bombardment negative ion mass spectrometry of quinones.
Several 1,4-quinones, including vitamin K1, have been examined by electrochemically assisted fast atom bombardment (EFAB) negative ion mass spectrometry. The resulting mass spectra of these substances show a significant increase in signal/chemical noise when compared to normal fast atom bombardment (FAB) mass spectra. Additionally, the use of EFAB results in some control over the reduction processes normally associated with FAB mass spectrometry.
Electrochemistry↗
Developing and testing the beliefs about caregiving scale.
Four studies were conducted to refine and test a newly developed instrument designed to identify caregivers who are at high risk for providing poor-quality care to a dependent elder in the home: the Beliefs About Caregiving Scale (BACS). The BACS was tested for internal consistency, stability, and construct validity. Results suggest strong evidence for internal consistency and for construct validity using the multitrait method as well as moderate evidence for construct validity using predictive modeling. Although further refinements are required, initial tests suggest that the BACS is potentially useful for both research and clinical applications.
Aged↗
Age: a truly confounding variable.
As Hinshaw (1981) has noted, the process of designing research might best be conceptualized as a series of informed decisions that involve constant trade-offs and compromise. With each advantage gained by a particular theoretical or methodological decision, the researcher inherits a certain number of threats to the study's internal and external validity and a potential number of error sources. Because of the nature of the research questions of interest to nurses and because of situational and contextual constraints in the clinical setting, nurse researchers often are required to select samples that contain small or large proportions of elderly subjects. The purpose of this article has been to raise some of the theoretical and methodological issues associated with the selection of both age-heterogeneous samples and age-homogeneous samples. Although in research all possible error sources cannot be controlled, it is possible to reduce the amount of error by a clear understanding of the implications of choices regarding age-related issues and inclusion of design features that reduce the amount of error introduced when research subjects who are relatively young are studied along with research subjects who are elderly.
Adult↗
Elder-family caregiver relationships. Determining appropriate nursing interventions.
Providing excellent care to elders involves more than the nurse's ability to minister to them; it is dependent on nurses' focusing assessment and intervention on the elder-caregiver dyad. Only by planning nursing care within the context of the dyad and considering the needs of the elder, the caregiver, and the unit, is it possible for nursing to realize its potential for improving the care of all elderly clients.
Aged↗
Pain management in rheumatoid arthritis patients. A cognitive-behavioral approach.
To examine the effectiveness of a cognitive-behavioral pain management program for patients with rheumatoid arthritis, three patient groups were studied: a cognitive-behavioral group (CB), an attention-placebo group, and a control group. The CB group received a comprehensive, 12-month pain management program that taught coping strategies such as problem-solving techniques, relaxation training, strategies for attention diversion, and training in family dynamics and communication. Dependent measures included pain, coping strategies, psychological status, functional status, and disease status. Data analysis at 12 months revealed benefits for the CB group in the area of enhanced coping strategies. Specifically, the CB subjects showed significantly greater use of coping strategies and significantly more confidence in their ability to manage pain. The findings are discussed in terms of the importance of enhanced self-efficacy and personal control for patients with rheumatoid arthritis.
Adaptation, Psychological↗
The fit of elder abuse with the family violence paradigm, and the implications of a paradigm shift for clinical practice.
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Aged↗
Injuries, absences, and visits to the nurse among children in alternative schools.
Previous research suggests ecological and programmatic characteristics of schools may influence the health and health behavior of schoolchildren. In particular, schools with alternative educational programs, such as "magnet" curricula and extended school hours, have been found to have a higher incidence of student injuries. To examine further the health correlates of alternative educational programs, the authors studied injuries, health office visits, and school absences of 983 elementary schoolchildren during the 1983-1984 academic year. The study population comprised students attending three elementary schools-two with magnet programs and one with a regular primary curriculum. All three had an option for extended school hours. The frequency of school absences was related significantly to school hours, with fewer absences found in schools with extended hours (p less than .01). Enrollment in a magnet school was associated positively and significantly with rates of both health office visits and injuries, even after adjustment for the effects of age, gender, and extended school hours (p less than .001). Finally, an interaction effect was identified in which children enrolled in both a magnet curriculum and an extended day program had substantially higher rates of health office visits than did children enrolled in either program alone (p less than .001). These findings confirm a disproportionate use of school health services for injuries and other health concerns among students attending alternative educational programs. Possible explanations include differences in student characteristics, adult supervision, or the family lifestyles of children in alternative schools.
Absenteeism↗
Alkyl phosphotriester modified oligodeoxyribonucleotides. V. Synthesis and absolute configuration of Rp and Sp diastereomers of an ethyl phosphotriester (Et) modified EcoRI recognition sequence, d[GGAA(Et)TTCC]. A synthetic approach to regio- and stereospecific ethylation-interference studies.
Protected deoxynucleoside 3'-O-ethyl-N,N-diisopropylphosphoramidite reagents were prepared for use in the automated synthesis of ethyl phosphotriester (Et) modified oligonucleotides. The title diastereomers were separated by reversed-phase HPLC, and chirality at phosphorus was assigned by an improved configurational correlation scheme that was verified by NMR spectroscopic studies (accompanying paper, Part VI). This generally applicable correlation scheme involved enzymatic digestions of each diastereomer to give the corresponding diastereomer of d[A(Et)T]; phosphite triester sulfurization to obtain diastereomeric O-ethyl phosphorothioates, d[AS(Et)T], which were separated by HPLC for stereoretentive oxidation with H2O2 to give d[A(Et)T], and stereoretentive de-ethylation with PhSH-Et3N to give diastereomeric phosphorothioates, d[AST], whose configurations at phosphorus had been assigned previously. Neither the Rp-Rp nor Sp-Sp duplex, (d[GGAA(Et)TTCC])2, was cleaved by EcoRI endonuclease under conditions that led to cleavage of both the unmodified duplex, [d(GGAATTCC)]2, and the mixture of diastereomeric phosphorothioate-modified duplexes, [d(GGAASTTCC)]2. Cleavage of the latter substrates was Sp-selective.
Base Sequence↗
Identification of ester-linked fatty acids of bacterial endotoxins by negative ion fast atom bombardment mass spectrometry.
Negative ion fast atom bombardment mass spectrometry (NI-FAB/MS) was employed to characterize the fatty acids esterified to the lipid A backbone of lipopolysaccharides (LPS) of gram-negative bacteria. LPS and their chemically derived lipid A produced readily detectable fragment ions characteristic of fatty acids. The NI-FAB/MS method is specific, yielding ions indicative of ester- but not of amide-bound fatty acids. The mass spectra of Enterobacteriaceae LPS revealed the presence of lauric (m/z 199), myristic (m/z 227), palmitic (m/z 255), and 3-hydroxymyristic (m/z 243) acids. Pseudomonas aeruginosa LPS gave distinctive fragment ions indicative of 3-hydroxydecanoic (m/z 187), lauric, and 2-hydroxylauric (m/z 215) acids. The Neisseria gonorrhoeae LPS could be distinguished from the others due to the presence of ester-linked 3-hydroxylauric acid. All of the LPS gave abundant ions of m/z 177 and 159, which were derived from diphosphoryl substituents. The use of NI-FAB/MS thus allowed rapid identification of lipid A esterified fatty acids without chemical derivatization or gas chromatographic analysis.
Amides↗
Caring for the frail elderly at home: toward a theoretical explanation of the dynamics of poor quality family caregiving.
Using the grounded theory approach, 39 family caregivers were theoretically sampled using newspaper advertising to explore their perceptions of providing home care for frail elders and to generate a theoretical model that describes the dynamics of good quality and poor quality family caregiving; explains the relationships among certain contextual and perceptual variables and the behaviors exchanged by elders and caregivers; and identifies points where interventions by nurses could be effective. The model consists of five constructs that were identified from the data and were staged within the framework provided by symbolic interactionism and social exchange theory. The five constructs and two related driving forces provide a partial explanation for the quality of family caregiving and a beginning explanation for the phenomenon of elder abuse.
Adolescent↗
Synthesis and fast-atom-bombardment-mass spectrometry of N-acetylmuramoyl-L-alanyl-D-isoglutamine (MDP).
N-Acetylmuramoyl-L-alanyl-D-isoglutamine (MDP) was synthesized by a series of condensations of appropriate reagents, followed by hydrogenolysis. Each intermediate step resulted in a stable, crystalline product. D-Isoglutamine 4-benzyl ester was condensed with N-(tert-butoxycarbonyl)-L-alanine N-hydroxysuccinimide ester, to give N-(tert-butoxycarbonyl)-L-alanyl-D-isoglutamine benzyl ester. Condensation of L-alanyl-D-isoglutamine benzyl ester with N-acetyl-1-O-benzyl-4,6-O-benzylidenemuramic acid, followed by hydrogenolysis, gave MDP. The synthetic scheme was shown to be capable of producing gram quantities of highly pure MDP, as well as a few of its analogs. The synthetic MDP was characterized by analytical and biological methods, and it was found that the use of fast-atom-bombardment-mass spectrometry may greatly simplify the characterization process.
Acetylmuramyl-Alanyl-Isoglutamine↗
The unseen abuse: why financial maltreatment of the elderly goes unrecognized.
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Aged↗
The structure of the repeating oligosaccharide unit of the pneumococcal capsular polysaccharide type 18C.
The structure of the repeating oligosaccharide of the pneumococcal capsular polysaccharide type 18C has been investigated. The repeating oligosaccharide, isolated from an aqueous hydrofluoric acid hydrolyzate of the polysaccharide, was shown, by fast atom bombardment-mass spectrometry, to have a molecular weight of 928, and to contain an O-acetyl group and a glycerol residue. Information about the sequence in the per-O-methylated oligosaccharide was derived from electron-impact mass spectrometry. Supporting data were obtained from methylation analysis, periodate and chromium trioxide oxidations, and enzymic and acid hydrolyses of the oligosaccharide. These studies indicated that the polysaccharide consists of the following pentasaccharide repeating unit. (formula see text)
Oligosaccharides↗
Peptide studies using a fast atom bombardment high field mass spectrometer and data system. 1--Sample introduction, data acquisition and mass calibration.
Conditions were established for analyzing as little as 5 pmol of an underivatized peptide delivered in a glycerol sample matrix as a thin film onto a gold-plated copper sample stage and then bombarded with xenon fast atoms. Calibration of the fast atom bombardment high field mass spectrometer and data system was achieved using cesium iodide/glycerol as a reference. Calibration at several accelerating potentials permitted a mass range from 393 to 5941 u. Several factors were examined that contribute to the quality of the mass spectrum: components within the glycerol such as other peptides, alkali salts, acid and reducing agents; the nature of the fast atom gas; concentration of the peptide delivered to the sample stage; and the effect of the sample stage and sample matrix on sensitivity.
Angiotensin I↗