Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 10 de 10
Filtrar
1.
JMIR Hum Factors ; 11: e54172, 2024 Apr 17.
Artigo em Inglês | MEDLINE | ID: mdl-38630530

RESUMO

BACKGROUND: Sjögren's syndrome (SS) is the second most common autoimmune rheumatic disease, and the range of symptoms includes fatigue, dryness, sleep disturbances, and pain. Smartphone apps may help deliver a variety of cognitive and behavioral techniques to support self-management in SS. However, app-based interventions must be carefully designed to promote engagement and motivate behavior change. OBJECTIVE: We aimed to explore self-management approaches and challenges experienced by people living with SS and produce a corresponding set of design recommendations that inform the design of an engaging, motivating, and evidence-based self-management app for those living with SS. METHODS: We conducted a series of 8 co-design workshops and an additional 3 interviews with participants who were unable to attend a workshop. These were audio recorded, transcribed, and initially thematically analyzed using an inductive approach. Then, the themes were mapped to the Self-Determination Theory domains of competency, autonomy, and relatedness. RESULTS: Participants experienced a considerable demand in the daily work required in self-managing their SS. The condition demanded unrelenting, fluctuating, and unpredictable mental, physical, and social efforts. Participants used a wide variety of techniques to self-manage their symptoms; however, their sense of competency was undermined by the complexity and interconnected nature of their symptoms and affected by interactions with others. The daily contexts in which this labor was occurring revealed ample opportunities to use digital health aids. The lived experience of participants showed that the constructs of competency, autonomy, and relatedness existed in a complex equilibrium with each other. Sometimes, they were disrupted by tensions, whereas on other occasions, they worked together harmoniously. CONCLUSIONS: An SS self-management app needs to recognize the complexity and overlap of symptoms and the complexities of managing the condition in daily life. Identifying techniques that target several symptoms simultaneously may prevent users from becoming overwhelmed. Including techniques that support assertiveness and communication with others about the condition, its symptoms, and users' limitations may support users in their interactions with others and improve engagement in symptom management strategies. For digital health aids (such as self-management apps) to provide meaningful support, they should be designed according to human needs such as competence, autonomy, and relatedness. However, the complexities among the 3 Self-Determination Theory constructs should be carefully considered, as they present both design difficulties and opportunities.


Assuntos
Aplicativos Móveis , Autogestão , Síndrome de Sjogren , Humanos , Síndrome de Sjogren/terapia , Assertividade , Comunicação
2.
JMIR Form Res ; 7: e44592, 2023 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-36939667

RESUMO

BACKGROUND: Contact tracing is considered a key measure in preventing the spread of infectious diseases. Governments around the world adopted contact tracing to limit the spread of COVID-19 in schools. Contact tracing tools utilizing digital technology (eg, GPS chips, Bluetooth radios) can increase efficiency compared to manual methods. However, these technologies can introduce certain privacy challenges in relation to retention, tracking, and the using and sharing of personal data, and little is known about their applicability in schools. OBJECTIVE: This is the second of two studies exploring the potential of digital tools and systems to help schools deal with the practical challenges of preventing and coping with an outbreak of COVID-19. The aim was to explore the views, needs, and concerns among secondary school stakeholders (parents, teachers, pupils) regarding the implementation of three digital tools for contact tracing: access cards, proximity tracking, and closed-circuit television (CCTV). METHODS: Focus groups and interviews were conducted with secondary school students, parents, and teachers. The topic guide was informed by the Unified Theory of Technology and Acceptance. Data-driven and theory-driven approaches were combined to identify themes and subthemes. RESULTS: We recruited 22 participants. Findings showed that there is no single solution that is suitable for all schools, with each technology option having advantages and limitations. Existing school infrastructure (eg, CCTV and smart/access cards technology) and the geography of each school would determine which tools would be optimal for a particular school. Concerns regarding the cost of installing and maintaining equipment were prominent among all groups. Parents and teachers worried about how the application of these solutions will affect students' right to privacy. Parents also appeared not to have adequate knowledge of the surveillance technologies already available in schools (eg, CCTV). Students, who were mostly aware of the presence of surveillance technologies, were less concerned about any potential threats to their privacy, while they wanted reassurances that any solutions would be used for their intended purposes. CONCLUSIONS: Findings revealed that there is not one tool that would be suitable for every school and the context will determine which tool would be appropriate. This study highlights important ethical issues such as privacy concerns, balancing invasions of privacy against potential benefits, transparency of communication around surveillance technology and data use, and processes of consent. These issues need to be carefully considered when implementing contact tracing technologies in school settings. Communication, transparency, and consent within the school community could lead to acceptance and engagement with the new tools.

3.
JMIR Form Res ; 6(11): e36412, 2022 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-36191172

RESUMO

BACKGROUND: Throughout the pandemic, governments worldwide have issued guidelines to manage the spread and impact of COVID-19 in schools, including measures around social distancing and contact tracing. Whether schools required support to implement these guidelines has not yet been explored in depth. Despite the development of a range of technologies to tackle COVID-19, such as contact-tracing apps and electronic vaccine certificates, research on their usefulness in school settings has been limited. OBJECTIVE: The aim of the study was to explore the needs of school staff in managing COVID-19 and their experiences and perspectives on technological support in relation to contact tracing. School staff are the ones likely to make key implementation decisions regarding new technologies, and they are also the ones responsible for using the new tools daily. Including both management staff and class teachers in the development of school-based technologies can lead to their successful adoption by schools. METHODS: Semistructured interviews were conducted with UK school staff, including primary and secondary school teachers and school managers. Thematic analysis, facilitated by NVivo, was used to analyze the data. Two of the authors independently coded 5 (28%) of the interviews and reached a consensus on a coding framework. RESULTS: Via purposive sampling, we recruited 18 participants from 5 schools. Findings showed that primary schools did not perform contact tracing, while in secondary schools, digital seating plans were used to identify close contacts in the classroom and manual investigations were also conducted identify social contacts. Participants reported that despite their efforts, high-risk interactions between students were not adequately monitored. There was a need to improve accuracy when identifying close contacts in common areas where students congregate. Proximity tracking, use of access cards, and closed-circuit television (CCTV) emerged as potential solutions, but there were concerns surrounding false alerts, burden, and security. CONCLUSIONS: School staff have found it difficult to monitor and implement social distancing and contact-tracing provisions. There are opportunities for mobile digital technologies and CCTV to support school staff in keeping their students and colleagues safe; however, these must place minimal demands on staff and prioritize security measures. Study findings can help researchers and practitioners who work in different contexts and settings understand what particular challenges are faced by school staff, and inform further research on the design and application of digital solutions for contact tracing.

4.
Health Psychol Rev ; 16(4): 475-491, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35240931

RESUMO

In this White Paper, we outline recommendations from the perspective of health psychology and behavioural science, addressing three research gaps: (1) What methods in the health psychology research toolkit can be best used for developing and evaluating digital health tools? (2) What are the most feasible strategies to reuse digital health tools across populations and settings? (3) What are the main advantages and challenges of sharing (openly publishing) data, code, intervention content and design features of digital health tools? We provide actionable suggestions for researchers joining the continuously growing Open Digital Health movement, poised to revolutionise health psychology research and practice in the coming years. This White Paper is positioned in the current context of the COVID-19 pandemic, exploring how digital health tools have rapidly gained popularity in 2020-2022, when world-wide health promotion and treatment efforts rapidly shifted from face-to-face to remote delivery. This statement is written by the Directors of the not-for-profit Open Digital Health initiative (n = 6), Experts attending the European Health Psychology Society Synergy Expert Meeting (n = 17), and the initiative consultant, following a two-day meeting (19-20th August 2021).


Assuntos
COVID-19 , Pandemias , Humanos , Pandemias/prevenção & controle , Promoção da Saúde , Saúde Global
5.
JMIR Mhealth Uhealth ; 6(3): e58, 2018 Mar 23.
Artigo em Inglês | MEDLINE | ID: mdl-29572200

RESUMO

BACKGROUND: Although many smartphone apps and wearables have been designed to improve physical activity, their rapidly evolving nature and complexity present challenges for evaluating their impact. Traditional methodologies, such as randomized controlled trials (RCTs), can be slow. To keep pace with rapid technological development, evaluations of mobile health technologies must be efficient. Rapid alternative research designs have been proposed, and efficient in-app data collection methods, including in-device sensors and device-generated logs, are available. Along with effectiveness, it is important to measure engagement (ie, users' interaction and usage behavior) and acceptability (ie, users' subjective perceptions and experiences) to help explain how and why apps and wearables work. OBJECTIVES: This study aimed to (1) explore the extent to which evaluations of physical activity apps and wearables: employ rapid research designs; assess engagement, acceptability, as well as effectiveness; use efficient data collection methods; and (2) describe which dimensions of engagement and acceptability are assessed. METHOD: An interdisciplinary scoping review using 8 databases from health and computing sciences. Included studies measured physical activity, and evaluated physical activity apps or wearables that provided sensor-based feedback. Results were analyzed using descriptive numerical summaries, chi-square testing, and qualitative thematic analysis. RESULTS: A total of 1829 abstracts were screened, and 858 articles read in full. Of 111 included studies, 61 (55.0%) were published between 2015 and 2017. Most (55.0%, 61/111) were RCTs, and only 2 studies (1.8%) used rapid research designs: 1 single-case design and 1 multiphase optimization strategy. Other research designs included 23 (22.5%) repeated measures designs, 11 (9.9%) nonrandomized group designs, 10 (9.0%) case studies, and 4 (3.6%) observational studies. Less than one-third of the studies (32.0%, 35/111) investigated effectiveness, engagement, and acceptability together. To measure physical activity, most studies (90.1%, 101/111) employed sensors (either in-device [67.6%, 75/111] or external [23.4%, 26/111]). RCTs were more likely to employ external sensors (accelerometers: P=.005). Studies that assessed engagement (52.3%, 58/111) mostly used device-generated logs (91%, 53/58) to measure the frequency, depth, and length of engagement. Studies that assessed acceptability (57.7%, 64/111) most often used questionnaires (64%, 42/64) and/or qualitative methods (53%, 34/64) to explore appreciation, perceived effectiveness and usefulness, satisfaction, intention to continue use, and social acceptability. Some studies (14.4%, 16/111) assessed dimensions more closely related to usability (ie, burden of sensor wear and use, interface complexity, and perceived technical performance). CONCLUSIONS: The rapid increase of research into the impact of physical activity apps and wearables means that evaluation guidelines are urgently needed to promote efficiency through the use of rapid research designs, in-device sensors and user-logs to assess effectiveness, engagement, and acceptability. Screening articles was time-consuming because reporting across health and computing sciences lacked standardization. Reporting guidelines are therefore needed to facilitate the synthesis of evidence across disciplines.

6.
Plant Cell ; 25(3): 884-900, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23503626

RESUMO

Thermoinhibition, or failure of seeds to germinate at warm temperatures, is common in lettuce (Lactuca sativa) cultivars. Using a recombinant inbred line population developed from a lettuce cultivar (Salinas) and thermotolerant Lactuca serriola accession UC96US23 (UC), we previously mapped a quantitative trait locus associated with thermoinhibition of germination to a genomic region containing a gene encoding a key regulated enzyme in abscisic acid (ABA) biosynthesis, 9-cis-EPOXYCAROTENOID DIOXYGENASE4 (NCED4). NCED4 from either Salinas or UC complements seeds of the Arabidopsis thaliana nced6-1 nced9-1 double mutant by restoring germination thermosensitivity, indicating that both NCED4 genes encode functional proteins. Transgenic expression of Salinas NCED4 in UC seeds resulted in thermoinhibition, whereas silencing of NCED4 in Salinas seeds led to loss of thermoinhibition. Mutations in NCED4 also alleviated thermoinhibition. NCED4 expression was elevated during late seed development but was not required for seed maturation. Heat but not water stress elevated NCED4 expression in leaves, while NCED2 and NCED3 exhibited the opposite responses. Silencing of NCED4 altered the expression of genes involved in ABA, gibberellin, and ethylene biosynthesis and signaling pathways. Together, these data demonstrate that NCED4 expression is required for thermoinhibition of lettuce seeds and that it may play additional roles in plant responses to elevated temperature.


Assuntos
Dioxigenases/metabolismo , Germinação , Lactuca/enzimologia , Proteínas de Plantas/metabolismo , Sementes/crescimento & desenvolvimento , Ácido Abscísico/biossíntese , Ácido Abscísico/genética , Arabidopsis/enzimologia , Arabidopsis/genética , Dioxigenases/genética , Regulação da Expressão Gênica de Plantas , Inativação Gênica , Giberelinas/genética , Giberelinas/metabolismo , Heterozigoto , Homozigoto , Temperatura Alta , Lactuca/genética , Lactuca/crescimento & desenvolvimento , Mutação , Folhas de Planta/genética , Folhas de Planta/metabolismo , Proteínas de Plantas/genética , Plantas Geneticamente Modificadas/enzimologia , Plantas Geneticamente Modificadas/genética , Plantas Geneticamente Modificadas/crescimento & desenvolvimento , Sementes/enzimologia , Sementes/genética , Estresse Fisiológico , Transgenes , Água/metabolismo
7.
J Homosex ; 58(1): 83-96, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21213176

RESUMO

Research has indicated that gay, lesbian, and bisexual (GLB) adolescents are at an increased risk of mental health problems. Research has also indicated that experiencing a sense of belonging is important for one's mental health. This study investigated sense of belonging to the general community and sense of belonging to a GLB specific youth group (Minus18) as predictors of depressive symptoms among self-identified GLB adolescents (N = 99). Participants completed the Sense of Belonging Instrument and Center for Epidemiologic Studies Depression Scale. Results showed that although sense of belonging to the general community and sense of belonging to the Minus18 community were both directly related to depression, only sense of belonging to the general community contributed significantly to the prediction of depression when they were entered simultaneously in a regression analysis. Results also showed that sense of belonging to the general community mediated the relation between sense of belonging to the Minus18 community and depression. These findings suggest that interventions aimed at increasing sense of belonging to a GLB-specific community are likely to be of indirect benefit to the mental health of GLB adolescents, whereas interventions aimed at increasing sense of belonging to the general community are likely to be of direct benefit to the mental health of GLB adolescents.


Assuntos
Bissexualidade/psicologia , Depressão/epidemiologia , Homossexualidade Feminina/psicologia , Homossexualidade Masculina/psicologia , Apoio Social , Adolescente , Austrália/epidemiologia , Feminino , Humanos , Masculino , Modelos Psicológicos , Análise de Regressão , Fatores de Risco
8.
Dev Biol ; 305(2): 589-98, 2007 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-17418113

RESUMO

Development of the germline requires the specification and survival of primordial germ cells (PGCs) in the embryo as well as the maintenance of gamete production during the reproductive life of the adult. These processes appear to be fundamental to all Metazoans, and some components of the genetic pathway regulating germ cell development and function are evolutionarily conserved. In both vertebrates and invertebrates, nanos-related genes, which encode RNA-binding zinc finger proteins, have been shown to play essential and conserved roles during germ cell formation. In Drosophila, maternally supplied nanos is required for survival of PGCs in the embryo, while in adults, nanos is required for the continued production of oocytes by maintaining germline stem cells self-renewal. In mice and zebrafish, nanos orthologs are required for PGC survival during embryogenesis, but a role in adults has not been explored. We show here that nanos1 in zebrafish is expressed in early stage oocytes in the adult female germline. We have identified a mutation in nanos1 using a reverse genetics method and show that young female nanos mutants contain oocytes, but fail to maintain oocyte production. This progressive loss of fertility in homozygous females is not a phenotype that has been described previously in the zebrafish and underlines the value of a reverse genetics approach in this model system.


Assuntos
Oócitos/fisiologia , Oogênese/fisiologia , Proteínas de Peixe-Zebra/fisiologia , Peixe-Zebra/fisiologia , Animais , Feminino , Modelos Biológicos , Oogênese/genética , Proteínas de Ligação a RNA , Células-Tronco/fisiologia , Peixe-Zebra/crescimento & desenvolvimento , Proteínas de Peixe-Zebra/biossíntese , Proteínas de Peixe-Zebra/genética
10.
Curr Biol ; 12(1): 65-8, 2002 Jan 08.
Artigo em Inglês | MEDLINE | ID: mdl-11790305

RESUMO

DNA methylation has been implicated in a variety of epigenetic processes, and abnormal methylation patterns have been seen in tumors. Analysis of methylation patterns has traditionally been conducted either by using Southern analysis after cleavage with methyl-sensitive restriction endonucleases or by bisulfite sequencing. However, neither method is practical for analyzing more than a few genes. Here, we describe a simple technique for genome-wide mapping of DNA methylation patterns. Fragmentation by a methyl-sensitive restriction endonuclease is followed by size fractionation and hybridization to microarrays. We demonstrate the utility of this method by characterizing methylation patterns in Arabidopsis methylation mutants. This analysis reveals that CHROMOMETHYLASE3 (CMT3), which was previously shown to maintain CpXpG methylation, preferentially methylates transposons, even when they are present as single copies within the genome. Methylation profiling has potential applications in disease research and diagnostic screening.


Assuntos
Proteínas de Arabidopsis , Arabidopsis/genética , Mapeamento Cromossômico/métodos , Elementos de DNA Transponíveis , DNA de Plantas/metabolismo , DNA-Citosina Metilases/metabolismo , Arabidopsis/enzimologia , DNA (Citosina-5-)-Metiltransferases/genética , Metilação de DNA , DNA-Citosina Metilases/genética , Genoma de Planta , Mutação , Análise de Sequência com Séries de Oligonucleotídeos/métodos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA