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1.
Artigo em Inglês | MEDLINE | ID: mdl-34501614

RESUMO

Although a large number of studies have indicated that self-control was an important predictive factor for adolescent internet addiction, the moderating and mediating mechanisms underlying this relationship remain unclear. To address this research gap, the present study, according to social learning theory and the organism-environment interaction theory, tested whether consideration of future consequences mediated the relation between self-control and adolescent internet addiction and whether deviant peer affiliation moderated the relationship between consideration of future consequences and internet addiction. Using longitudinal tracking (two-time points and the interval is 6 months). Three middle schools in Guangzhou were randomly selected. The participants were 1182 students ranging in age from 12 to 15 years (average age: 14.16, SD = 1.29) from three middle schools in Guangzhou (651 boys and 531 girls) in Guangdong Province. Results showed that consideration of future consequences mediated the relationship between self-control and internet addiction. Furthermore, the relationship between future consequence consideration and internet addiction was moderated by deviant peer affiliation. These findings highlighted the potential mediating role of consideration of future consequences in linking self-control to adolescent internet addiction. We also found high deviant peer affiliation weakens the protective effect of future consequence consideration on Internet addiction. This study may provide support for adolescent Internet addiction prevention and have some educational implications.


Assuntos
Comportamento do Adolescente , Autocontrole , Adolescente , Criança , China/epidemiologia , Feminino , Humanos , Internet , Transtorno de Adição à Internet , Masculino , Grupo Associado
2.
Front Psychol ; 12: 724675, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34512480

RESUMO

This study attempted to examine the mediating role of filial piety in the relationships between parental autonomy support and control and Chinese adolescents' academic autonomous motivation. A set of questionnaires were administered to 492 adolescent students at two senior high schools in Fuzhou, China. Confirmatory Factor Analysis and Structural Equation Modeling were employed to analyze the data. The results showed that reciprocal filial piety (RFP) fully mediated the relationships of parental autonomy support and behavioral control with adolescents' academic autonomous motivation. RFP did not significantly mediate the relationship between psychological control and academic autonomous motivation. Comparatively, authoritarian filial piety (AFP) did not play a significant mediating role in the relationship between the three parenting dimensions and adolescents' academic autonomous motivation. The findings provide a new perspective for understanding the relationship between parenting behaviors and Chinese adolescents' academic autonomous motivation.

3.
Artigo em Inglês | MEDLINE | ID: mdl-34444105

RESUMO

Non-suicidal self-injury (NSSI) is an emerging health problem among adolescents. Although previous studies have shown that deviant peer affiliation is an important risk factor for this behavior, the reasons for this relationship are unclear. Based on the integrated theoretical model of the development and maintenance of NSSI and the social development model of delinquency prevention, this study tested whether depression mediated the relationship between deviant peer affiliation and NSSI and whether this mediating effect was moderated by sensation seeking. A sample of 854 Chinese adolescents (31.50% male; Mage = 16.35; SD = 1.15) anonymously completed questionnaires on the study variables. Results of regression-based analyses showed that depression mediated the association between deviant peer affiliation and NSSI, and this effect was stronger among adolescents who reported high sensation seeking. The results demonstrate the role of individual differences in the link between affiliation with deviant peers and NSSI, and have implications for preventing and treating this risky behavior.


Assuntos
Comportamento do Adolescente , Comportamento Autodestrutivo , Adolescente , China/epidemiologia , Depressão/epidemiologia , Feminino , Humanos , Masculino , Grupo Associado , Comportamento Autodestrutivo/epidemiologia , Sensação
4.
Nat Commun ; 11(1): 4762, 2020 09 21.
Artigo em Inglês | MEDLINE | ID: mdl-32958767

RESUMO

Forests are increasingly affected by natural disturbances. Subsequent salvage logging, a widespread management practice conducted predominantly to recover economic capital, produces further disturbance and impacts biodiversity worldwide. Hence, naturally disturbed forests are among the most threatened habitats in the world, with consequences for their associated biodiversity. However, there are no evidence-based benchmarks for the proportion of area of naturally disturbed forests to be excluded from salvage logging to conserve biodiversity. We apply a mixed rarefaction/extrapolation approach to a global multi-taxa dataset from disturbed forests, including birds, plants, insects and fungi, to close this gap. We find that 75 ± 7% (mean ± SD) of a naturally disturbed area of a forest needs to be left unlogged to maintain 90% richness of its unique species, whereas retaining 50% of a naturally disturbed forest unlogged maintains 73 ± 12% of its unique species richness. These values do not change with the time elapsed since disturbance but vary considerably among taxonomic groups.


Assuntos
Conservação dos Recursos Naturais , Agricultura Florestal/normas , Florestas , Animais , Benchmarking , Biodiversidade , Conservação dos Recursos Naturais/métodos , Ecossistema , Especificidade da Espécie
5.
Tob Induc Dis ; 18: 65, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32818028

RESUMO

INTRODUCTION: The help of healthcare professionals for smokers to quit is critically important to increase quit rates. In the future, internship nursing students will potentially become the largest population of medical professionals. This study explored the impact of the use and awareness of universal tobacco control auxiliary resources on nursing students' 5As behavior in helping patients to quit smoking during a 40-week clinical internship in the last year of nursing school in Chongqing, China. METHODS: A survey was conducted in 13 teaching hospitals selected from 29 in Chongqing, China, in 2019, by a random cluster sampling method. It investigated, by self-reported questionnaires, student 5As behavior in helping patients to quit smoking and use and knowledge of tobacco cessation auxiliary resources (tobacco cessation self-education manual, tobacco cessation guidelines, tobacco cessation drugs, tobacco cessation websites, and hotline). The relationship between tobacco cessation auxiliary resources and 5As behavior in helping patients to quit smoking was analyzed with a multivariate linear mixed-effect model. RESULTS: In all, 534 (39.3%) students, of a total of 1358, reported that the majority of internship units provided a tobacco control self-education manual; 674 (49.6%) ever skimmed through tobacco cessation guidelines; 641 (47.2%) browsed tobacco cessation websites; 738 (54.3%) knew some cessation-assistance drugs; and 93 (6.8%) knew of and could recall the tobacco cessation hotline. Except for tobacco cessation websites, tobacco cessation auxiliary resources affected nursing interns' 5As behavior in helping patients to quit (p<0.05). CONCLUSIONS: Tobacco cessation auxiliary resources influenced students' 5As behavior in helping patients to quit smoking. Students knew a little of tobacco cessation auxiliary resources. To improve students' 5As behavior for helping patients to quit, more tobacco cessation resources need to be developed and more students need to become acquainted with them.

6.
Clin Interv Aging ; 15: 595-607, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32431493

RESUMO

Purpose: Perceived social support (PSS) is closely linked to health outcomes in dementia patients. However, its continuous benefits are unclear. This mixed-methods study examined the impact of social support perceptions and differentiation among patients and carers during disease progression. Patients and Methods: Persons with dementia (PWDs), family caregivers, and community family physicians were recruited from nine community health centers. Semi-structured interviews conducted with 12 PWDs (7 PWDs in mild dementia and 5 in moderate dementia), 12 family caregivers, and 6 community family physicians and conventional content analysis were used to explore social support perspectives at different dementia stages. A total of 470 PWDs were divided into mild (n=224), moderate (n=190), and severe (n=56) groups. Demographic, physical, and psychological factors related to PSS were examined by the group using multiple regression analysis. The group-based characteristics were entered into three prediction models. Results: In the qualitative study, three themes of social support were identified: two viewpoints refer to social support; different needs and preferences in each stage; non-personalized support services. Quantitatively, the mild group scored lowest in perceived social support, while the severe group scored highest (χ2=64.70, P<0.001). The mild group PSS was predicted by depression (ß=-0.07, P=0.04), cognitive capacity (ß=-0.18, P<0.001), and instrumental ability (ß=-0.78, P<0.001), which differed from the moderate and severe groups. Conclusion: This study provided comprehensive insight into PSS from PWDs' perspective at different stages of the disease. Results indicated the need for a stratified care approach and direction for further research on intervention.


Assuntos
Cuidadores/psicologia , Demência/psicologia , Apoio Social , Idoso , Idoso de 80 Anos ou mais , Medicina de Família e Comunidade , Feminino , Nível de Saúde , Humanos , Masculino , Saúde Mental , Pesquisa Qualitativa , Índice de Gravidade de Doença , Fatores Socioeconômicos
7.
Ecology ; 101(3): e02949, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31833562

RESUMO

Following natural disturbances, additional anthropogenic disturbance may alter community recovery by affecting the occurrences of species, functional groups, and evolutionary lineages. However, our understanding of whether rare, common, or dominant species, functional groups, or evolutionary lineages are most strongly affected by an additional disturbance, particularly across multiple taxa, is limited. Here, we used a generalized diversity concept based on Hill numbers to quantify the community differences of vascular plants, bryophytes, lichens, wood-inhabiting fungi, saproxylic beetles, and birds in a storm-disturbed, experimentally salvage logged forest. Communities of all investigated species groups showed dissimilarities between logged and unlogged plots. Most species groups showed no significant changes in dissimilarities between logged and unlogged plots over the first seven years of succession, indicating a lack of community recovery. In general, the dissimilarities of communities were mainly driven by rare species. Convergence of dissimilarities occurred more often than divergence during the early stages of succession for rare species, indicating a major role in driving decreasing taxonomic dissimilarities between logged and unlogged plots over time. Trends in species dissimilarities only partially match the trends in dissimilarities of functional groups and evolutionary lineages, with little significant changes in successional trajectories. Nevertheless, common and dominant species contributed to a convergence of dissimilarities over time in the case of the functional dissimilarities of wood-inhabiting fungi. Our study shows that salvage logging following disturbances can alter successional trajectories in early stages of forest succession following natural disturbances. However, community changes over time may differ remarkably in different taxonomic groups and are best detected based on taxonomic, rather than functional or phylogenetic dissimilarities.


Assuntos
Besouros , Agricultura Florestal , Animais , Biodiversidade , Florestas , Filogenia
8.
Artigo em Inglês | MEDLINE | ID: mdl-31614952

RESUMO

Background: Smoking is among the most preventable causes of death globally. Tobacco cessation can lessen the number of potential deaths. The China Tobacco Cessation Guidelines encourage medical staff to perform the 5As (Ask, Advise, Assess, Assist, Arrange) when delivering tobacco dependence treatments to patients. Nursing students will develop to be nurses in the future and they have to finish 9 months of clinical practicum study in the last year at hospitals or care centers. However, the frequency of behaviors used to help smokers quit among Chinese nursing internship students is unclear. This study analyzed the rate of nurse interns' performance of the 5As and which demographic characteristics, perceptions of smoking and knowledge predicted higher performance of the 5As. Methods: The cluster sampling method was used to select 13 teaching hospitals among 29. All nursing intern students were expected to finish the questionnaire about their 5As behaviors to help patients quit smoking. Their 5As performances were scored from one to five with 5 being the best and scores were summed. A multivariate linear mixed-effect model was employed to test the differences between their 5As. Results: Participating in the survey were 1358 interns (62.4% response rate). The average scores were as follows-Ask-3.15, Advise-2.75, Assess-2.67, Assist-2.58 and Arrange-2.42. A total of 56.3% students perceived that medical staff should perform the 5As routinely to help patients quit smoking. On the other hand, 52.1% viewed clinical preceptors as role models of the 5As. School education regarding tobacco control, smoking dependence treatment, self-efficacy and positive intentions were predictors of higher performance of the 5As (p < 0.001). Conclusions: Nursing internship students seldom administered tobacco dependence treatments to patients. It is essential to improve the corresponding education, skills and self-efficacy of the 5As. Meanwhile, clinical preceptors should procure more training in the responsibilities and skills related to tobacco cessation. In this way, clinical preceptors can be role models of the 5As and impart positive influences on interns.


Assuntos
Internato e Residência , Fumantes/psicologia , Abandono do Hábito de Fumar/métodos , Estudantes de Enfermagem , Tabagismo/terapia , Adulto , China , Estudos Transversais , Feminino , Humanos , Capacitação em Serviço , Masculino , Autoeficácia , Fumar , Inquéritos e Questionários , Fumar Tabaco
9.
J Clin Nurs ; 22(9-10): 1281-90, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23574291

RESUMO

AIMS AND OBJECTIVES: To explore the common symptom cluster in lung cancer patients with surgical treatment and to evaluate the relationships between symptom cluster and patients' disease outcomes, including functional status and quality of life. BACKGROUND: Lung cancer is one of the leading causes of cancer-related death for both men and women, and its incidence is increasing in China. Growing number of researches confirmed that symptoms in lung cancer patients with chemotherapy and radiotherapy occurred as 'symptom cluster' across the disease trajectory and influenced disease outcomes. However, few studies focused on the symptom cluster and its effects on quality of life and functional status of lung cancer surgery patients. DESIGN: This is a descriptive, cross-sectional design. METHODS: Symptoms in lung cancer surgery were assessed by M.D. Anderson Symptom Inventory, Karnofsky Performance Scale and Quality of Life Instruments for Cancer Patients - Lung Cancer. One hundred and forty-five individuals were involved in the survey. RESULTS: The top four common and most severe symptoms were pain, fatigue, disturbed sleep and distress for lung cancer surgery patients. 4·8% (n = 7) and 17·2% (n = 25) of patients reported co-occurrence of two or three symptoms of pain, fatigue, disturbed sleep and distress. About 76·6% (n = 111) of patients reported co-occurrence of all the four symptoms. There were strong negative relationships between the top four symptoms and Karnofsky Performance Scale and Quality of Life Instruments for Cancer Patients - Lung Cancer scores. CONCLUSION: Pain, fatigue, disturbed sleep and distress constituted the common symptom cluster during the disease trajectory in patients with lung cancer who got surgical treatment and negatively affected their quality of life and functional status. RELEVANCE TO CLINICAL PRACTICE: Symptoms in lung cancer surgery patients often occurred as cluster during the trajectory of disease. To improve the well-being of patients, attentions need to be focused on developing symptom cluster management strategies.


Assuntos
Fadiga/etiologia , Neoplasias Pulmonares/psicologia , Dor/etiologia , Qualidade de Vida , Transtornos do Sono-Vigília/etiologia , Estresse Psicológico/etiologia , Adulto , Idoso , Estudos Transversais , Feminino , Humanos , Neoplasias Pulmonares/complicações , Neoplasias Pulmonares/fisiopatologia , Neoplasias Pulmonares/cirurgia , Masculino , Pessoa de Meia-Idade , Adulto Jovem
10.
Opt Express ; 19(25): 25441-6, 2011 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-22273936

RESUMO

This work demonstrates a polarization-independent electrically tunable Fabry-Pérot (FP) filter that is based on polymer-stabilized blue phase liquid crystals (PSBPLCs). An external vertical electric field can be applied to modulate the effective refractive index of the PSBPLCs along the optical axis. Therefore, the wavelength-tuning property of the FP filter is completely independent of the polarization state of the incident light. The change in the birefringence in PSBPLCs is governed by Kerr effect-induced isotropic-to-anisotropic transition, and so the PSBPLCs based FP filter has a short response time. The measured tunability and free spectral range of the FP filter are 0.092 nm/ V and 16nm in the visible region, and 0.12nm/ V and 97nm in the NIR region, respectively, and the response time is in sub-millisecond range. The fast-responding polarization-independent electrically tunable FP filter has substantial potential for practical applications.


Assuntos
Eletrônica/instrumentação , Filtração/instrumentação , Interferometria/instrumentação , Cristais Líquidos/química , Cristais Líquidos/efeitos da radiação , Cor , Campos Eletromagnéticos , Desenho de Equipamento , Análise de Falha de Equipamento , Transição de Fase
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