RESUMO
The ^{30}P(p,γ)^{31}S reaction plays an important role in understanding the nucleosynthesis of A≥30 nuclides in oxygen-neon novae. The Gaseous Detector with Germanium Tagging was used to measure ^{31}Cl ß-delayed proton decay through the key J^{π}=3/2^{+}, 260-keV resonance. The intensity I_{ßp}^{260}=8.3_{-0.9}^{+1.2}×10^{-6} represents the weakest ß-delayed, charged-particle emission ever measured below 400 keV, resulting in a proton branching ratio of Γ_{p}/Γ=2.5_{-0.3}^{+0.4}×10^{-4}. By combining this measurement with shell-model calculations for Γ_{γ} and past work on other resonances, the total ^{30}P(p,γ)^{31}S rate has been determined with reduced uncertainty. The new rate has been used in hydrodynamic simulations to model the composition of nova ejecta, leading to a concrete prediction of ^{30}Si:^{28}Si excesses in presolar nova grains and the calibration of nuclear thermometers.
RESUMO
The thermonuclear ^{30}P(p,γ)^{31}S reaction rate is critical for modeling the final elemental and isotopic abundances of ONe nova nucleosynthesis, which affect the calibration of proposed nova thermometers and the identification of presolar nova grains, respectively. Unfortunately, the rate of this reaction is essentially unconstrained experimentally, because the strengths of key ^{31}S proton capture resonance states are not known, largely due to uncertainties in their spins and parities. Using the ß decay of ^{31}Cl, we have observed the ß-delayed γ decay of a ^{31}S state at E_{x}=6390.2(7) keV, with a ^{30}P(p,γ)^{31}S resonance energy of E_{r}=259.3(8) keV, in the middle of the ^{30}P(p,γ)^{31}S Gamow window for peak nova temperatures. This state exhibits isospin mixing with the nearby isobaric analog state at E_{x}=6279.0(6) keV, giving it an unambiguous spin and parity of 3/2^{+} and making it an important l=0 resonance for proton capture on ^{30}P.
RESUMO
The manner of presentation of cancer risk information is critical to its understanding and acceptance by the individual recipient. Optimal communication of cancer risk information must effectively translate the technical meaning and subtleties of risk and its associated factors to a conceptual level understandable by the recipient. Tailored print communications (TPCs) may be an appropriate medium for cancer risk communication (CRC). TPCs are more refined than targeted communication materials. They are print materials created especially for an individual on the basis of knowledge about that person. The goal is to provide individually relevant and appropriate information. This review examines the nature of TPCs, assesses the use and potential of TPCs for the purpose of CRC, and highlights new directions in CRC. Articles dealing with TPCs were located by searching the MEDLINE(R) and PsychInfo(R) databases and seeking in-press articles. TPCs were identified for several areas of CRC, including dietary change, smoking cessation, mammography use, hormone replacement therapy, health risk appraisal, and genetic susceptibility to cancer. Although TPCs have been used in a number of different behavioral areas, they have not yet achieved their potential for CRC. The use of TPCs in the communication of cancer risk shows great promise, however, particularly as knowledge evolves regarding both the nature of risk and the most effective tailoring of health communication messages.
Assuntos
Comunicação , Neoplasias/prevenção & controle , Materiais de Ensino , Promoção da Saúde/métodos , Humanos , Neoplasias/epidemiologia , Medição de Risco , Fatores de RiscoRESUMO
We conducted a 4-year randomized study in a community health center that serves primarily low income Blacks in Durham, North Carolina. Patients (1318 at baseline) were assigned randomly to one of three study groups: provider prompting intervention alone, provider prompting and tailored print materials or the previous group and tailored telephone counseling. The purpose of the study was to determine whether increasingly intensive, tailored print and telephone interventions also were increasingly effective in promoting adherence to mammograms, Pap tests and overall cancer screening compliance. Thus, the combination of tailored print interventions (print and telephone) should have been more effective than the provider prompting intervention alone, or the print intervention and prompting combination. This is one of the few studies to examine a measure of overall cancer screening compliance and to assess the benefit of combinations of tailored interventions in promoting adherence to cancer screening. Patients gave extremely high ratings to the interventions. At the bivariate level, we found a significant effect of the most intensive group (provider prompting intervention, tailored print communications and tailored telephone counseling) on Pap test compliance (P = 0.05) and borderline significance at the multivariate level (P = 0.06) as well on overall screening compliance (P = 0.06). There was not a significant effect on mammography, probably because a majority of the patients were receiving regular mammograms. We also found some important subgroup differences. For example, a larger proportion of women reported Pap tests in the tailored print and counseling group when they believed the materials were 'meant for me.' These results show that a combination of tailored interventions may have potential for reaching the women who have too often been labeled the 'hard to reach.'
Assuntos
Negro ou Afro-Americano/educação , Aconselhamento/métodos , Planejamento de Assistência ao Paciente/normas , Cooperação do Paciente/psicologia , Educação de Pacientes como Assunto/métodos , Sistemas de Alerta/normas , Adolescente , Adulto , Negro ou Afro-Americano/psicologia , Idoso , Centros Comunitários de Saúde , Aconselhamento/normas , Feminino , Humanos , Mamografia/psicologia , Programas de Rastreamento/psicologia , Pessoa de Meia-Idade , North Carolina , Folhetos , Educação de Pacientes como Assunto/normas , Pobreza/psicologia , Telefone , Esfregaço Vaginal/psicologiaRESUMO
In more and more medical settings, physicians have less and less time to be effective communicators. To be effective, they need accurate, current information about their patients. Tailored health communications can facilitate positive patient-provider communications and foster behavioral changes conducive to health. Tailored communications (TCs) are produced for an individual based on information about that person. The focus of this report is on tailored print communications (TPCs). TPCs also enhance the process of evaluation, because they require a database and the collection of patient-specific information. We present a Tailoring Model for Primary Care that describes the steps involved in creating TPCs. We also provide examples from three ongoing studies in which TPCs are being used in order to illustrate the kinds of variables used for tailoring the products that are developed and how evaluation is conducted. TPCs offer opportunities to expand the reach of health professionals and to give personalized, individualized massages in an era of shrinking professional contact time.
Assuntos
Programas de Rastreamento/organização & administração , Aplicações da Informática Médica , Atenção Primária à Saúde/organização & administração , Tomada de Decisões Gerenciais , Educação em Saúde/métodos , Educação em Saúde/organização & administração , Humanos , Sistemas Computadorizados de Registros Médicos , Modelos Teóricos , Neoplasias/prevenção & controle , Planejamento de Assistência ao Paciente , Privacidade , Software , Telecomunicações/organização & administração , Estados Unidos , Interface Usuário-Computador , Saúde da Mulher , Processamento de TextoAssuntos
Personalidade , Diálise Renal , Estresse Psicológico , Humanos , Inventário de PersonalidadeRESUMO
The authors tested an empirical definition of comprehension and investigated the relationship between comprehension, retention, attitudes, beliefs, and behavioral change in response to a persuasive health message. The study used a randomized post-tests only design with one experimental and one control group. A booklet about exercise was given to experimental group participants in their homes. They were interviewed immediately after reading the booklet and one month later. Control group participants were interviewed at both times without exposure to the booklet. The authors found that participants who were able to operationalize key concepts related to the exercise message were the most likely group to have performed the recommended behavior according to self-reports. Measures of recognition and recall were not significantly related to behavior, but measures of psychological-operational meaning (defined as the learner's ability to use the information and relate it to his/her own life) were related significantly to self-reported behavior. The authors also examined the relationship of comprehension to other variables, such as attitudes, beliefs, and behavior. The study's results support the hypothesis that comprehension is a necessary but not sufficient precursor of behavior. Implications for both program design and measurement are discussed.
Assuntos
Atitude Frente a Saúde , Educação em Saúde/métodos , Comunicação Persuasiva , Humanos , Rememoração Mental , Aceitação pelo Paciente de Cuidados de Saúde , Projetos de Pesquisa , Autoavaliação (Psicologia)RESUMO
Cancer now attacks one in three Americans, resulting in one in six deaths. Yet, until recently, few patient education programs were directed toward cancer patients. This review examines the status of cancer patient education and suggests future directions. We focus on several aspects of cancer patient education, including needs assessments and programs in treatment, rehabilitation, and continuing care and evaluation. The most comprehensive patient education programs are those directed toward patients in active treatment; one of its tasks is to help patients manage treatment side effects. A major component of rehabilitation programs is counseling patients to help them cope with the effects of cancer. Many patient education programs have performed evaluations; most reflect difficulties in one or more areas, such as selecting appropriate measures or accruing adequate sample sizes. We recommend several directions for the future, including the use of appropriate measurement tools, adequate sample sizes, multimodality programs with incorporation of psychological techniques such as relaxation training and guided imagery, and assessment of the impact of patient education programs on costs.
Assuntos
Neoplasias/reabilitação , Educação de Pacientes como Assunto/tendências , Aconselhamento , Estudos de Avaliação como Assunto , Humanos , Consentimento Livre e Esclarecido , Neoplasias/psicologia , Pacientes/psicologia , Testes Psicológicos , Estados UnidosRESUMO
Printed health education materials frequently consist of mass-produced brochures, booklets, or pamphlets designed for a general population audience. Although this one-size-fits-all approach might be appropriate under certain circumstances and even produce small changes at relatively modest costs, it cannot address the unique needs, interests, and concerns of different individuals. With the advent and dissemination of new communication technologies, our ability to collect information from individuals and provide feedback tailored to the specific information collected is not only possible, but practical. The purpose of this article is to: (a) distinguish between tailored print communication and other common communication-based approaches to health education and behavior change; (b) present a theoretical and public health rationale for tailoring health information; and (c) describe the steps involved in creating and delivering tailored print communication programs. Studies suggest computer tailoring is a promising strategy for health education and behavior change. Practitioners and researchers should understand the approach and consider the possibilities it presents for enhancing their work in disease prevention.