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1.
PLoS One ; 15(11): e0241465, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33141860

RESUMO

The past nine months witnessed COVID-19's fast-spreading at the global level. Limited by medical resources shortage and uneven facilities distribution, online help-seeking becomes an essential approach to cope with public health emergencies for many ordinaries. This study explores the driving forces behind the retransmission of online help-seeking posts. We built an analytical framework that emphasized content characteristics, including information completeness, proximity, support seeking type, disease severity, and emotion of help-seeking messages. A quantitative content analysis was conducted with a probability sample consisting of 727 posts. The results illustrate the importance of individual information completeness, high proximity, instrumental support seeking. This study also demonstrates slight inconformity with the severity principle but stresses the power of anger in help-seeking messages dissemination. As one of the first online help-seeking diffusion analyses in the COVID-19 period, our research provides a reference for constructing compelling and effective help-seeking posts during a particular period. It also reveals further possibilities for harnessing social media's power to promote reciprocal and cooperative actions as a response to this deepening global concern.


Assuntos
Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/psicologia , Disseminação de Informação , Comportamento de Busca de Informação , Sistemas On-Line , Pandemias , Pneumonia Viral/epidemiologia , Pneumonia Viral/psicologia , Mídias Sociais , Apoio Social , Grupo com Ancestrais do Continente Asiático , China/epidemiologia , Surtos de Doenças , Emergências/psicologia , Humanos , Saúde Pública
4.
Annu Int Conf IEEE Eng Med Biol Soc ; 2020: 2981-2985, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-33018632

RESUMO

Decoding upper-limb movements in invasive recordings has become a reality, but neural tuning in non-invasive low-frequency recordings is still under discussion. Recent studies managed to decode movement positions and velocities using linear decoders, even developing an online system. The decoded signals, however, exhibited smaller amplitudes than actual movements, affecting feedback and user experience. Recently, we showed that a non-linear offline decoder can combine directional (e.g., velocity) and non-directional (e.g., speed) information. In this study, it is assessed if the non-linear decoder can be used online to provide real-time feedback. Five healthy subjects were asked to track a moving target by controlling a robotic arm. Initially, the robot was controlled by their right hand; then, the control was gradually switched until it was entirely controlled by the electroencephalogram (EEG). Correlations between actual and decoded movements were generally above chance level. Results suggest that information about speed was also encoded in the EEG, demonstrating that the proposed non-linear decoder is suitable for decoding real-time arm movements.


Assuntos
Eletroencefalografia , Movimento , Mãos , Humanos , Sistemas On-Line , Extremidade Superior
5.
Nurs Educ Perspect ; 41(6): 386-387, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33079824
6.
Health Educ Res ; 35(5): 490-503, 2020 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-33090215

RESUMO

We proposed a conceptual model combining three theories: uses and gratification theory, social networking sites (SNS) dependency theory and social impact theory to understand the factors that predict fake news sharing related to COVID-19. We also tested the moderating role of fake news knowledge in reducing the tendency to share fake news. Data were drawn from social media users (n = 650) in Nigeria, and partial least squares was used to analyse the data. Our results suggest that tie strength was the strongest predictor of fake news sharing related to COVID-19 pandemic. We also found perceived herd, SNS dependency, information-seeking and parasocial interaction to be significant predictors of fake news sharing. The effect of status-seeking on fake news sharing, however, was not significant. Our results also established that fake news knowledge significantly moderated the effect of perceived herd, SNS dependency, information-seeking, parasocial interaction on fake news sharing related to COVID-19. However, tie strength and status-seeking effects were not moderated.


Assuntos
Betacoronavirus , Infecções por Coronavirus , Pandemias , Pneumonia Viral , Adolescente , Adulto , Idoso , Decepção , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Nigéria , Sistemas On-Line , Mídias Sociais , Adulto Jovem
7.
PLoS One ; 15(10): e0236205, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33095774

RESUMO

The present research aims at quantifying the impact of practicing a new coordination pattern with an online visual feedback on the postural coordination performed on a mechanical horse. Forty-four voluntary participants were recruited in this study. They were randomly assigned to four practice groups based on i) with or without feedback (i.e., group 1, control, did not receive the feedback; group 2, 3 and 4 received an online feedback during practice) and ii) the specific trunk/horse coordination to target during practice (group 1, target coordination = 180° (without feedback); group 2, target coordination = 0°; group 3, target coordination = 90°; group 4, target coordination = 180°). All participants performed pre-, practice, post- and retention sessions. The pre-, post- and retention sessions consisted of four trials, with one trial corresponding to one specific target coordination to maintain between their own oscillations and the horse oscillations (spontaneous, 0°, 90°, and 180°). The practice phase was composed of three different sessions during which participants received an online feedback about the coordination between their own oscillations and the horse oscillations. Results showed a significant change with practice in the trunk/horse coordination patterns which persisted even after one month (retention-test). However, all the groups did not show the same nature of change, evidenced by a high postural variability during post-test for 0° and 90° target coordination groups, in opposition to the 180° and spontaneous groups who showed a decrease in coordination variability for the 180° group. The coordination in anti-phase was characterized as spontaneously adopted by participants on the mechanical horse, explaining the ease of performing this coordination (compared to the 0° and 90° target coordination). The effect of online visual feedback appeared not only on the coordination pattern itself, but most importantly on its variability during practice, including concerning initially stable coordination patterns.


Assuntos
Retroalimentação , Atividade Motora/fisiologia , Equilíbrio Postural , Prática Psicológica , Desempenho Psicomotor , Postura Sentada , Adolescente , Adulto , Animais , Atenção , Fenômenos Biomecânicos , Cavalos , Humanos , Sistemas On-Line , Tronco , Adulto Jovem
8.
JMIR Public Health Surveill ; 6(3): e17242, 2020 09 10.
Artigo em Inglês | MEDLINE | ID: mdl-32909955

RESUMO

BACKGROUND: A better understanding of the influenza epidemiology among primary care workers could guide future recommendations to prevent transmission in primary care practices. Therefore, we designed a pilot study to assess the feasibility of using a work-based online influenza surveillance system among primary care workers. Such an approach is of particular relevance in the context of the coronavirus disease (COVID-19) pandemic, as its findings could apply to other infectious diseases with similar mechanisms of transmission. OBJECTIVE: This study aims to determine the feasibility of using a work-based online influenza surveillance system for primary care workers in Switzerland. METHODS: Physicians and staff of one walk-in clinic and two selected primary care practices were enrolled in this observational prospective pilot study during the 2017-2018 influenza season. They were invited to record symptoms of influenza-like illness in a weekly online survey sent by email and to self-collect a nasopharyngeal swab in case any symptoms were recorded. Samples were tested by real-time polymerase chain reaction for influenza A, influenza B, and a panel of respiratory pathogens. RESULTS: Among 67 eligible staff members, 58% (n=39) consented to the study and 53% (n=36) provided data. From the time all participants were included, the weekly survey response rate stayed close to 100% until the end of the study. Of 79 symptomatic episodes (mean 2.2 episodes per participant), 10 episodes in 7 participants fitted the definition of an influenza-like illness case (attack rate: 7/36, 19%). One swab tested positive for influenza A H1N1 (attack rate: 3%, 95% CI 0%-18%). Swabbing was considered relatively easy. CONCLUSIONS: A work-based online influenza surveillance system is feasible for use among primary care workers. This promising methodology could be broadly used in future studies to improve the understanding of influenza epidemiology and other diseases such as COVID-19. This could prove to be highly useful in primary care settings and guide future recommendations to prevent transmission. A larger study will also help to assess asymptomatic infections.


Assuntos
Pessoal de Saúde , Influenza Humana/epidemiologia , Programas de Rastreamento/métodos , Sistemas On-Line , Vigilância da População/métodos , Atenção Primária à Saúde , Adulto , Betacoronavirus , Controle de Doenças Transmissíveis/métodos , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/virologia , Estudos de Viabilidade , Feminino , Inquéritos Epidemiológicos , Humanos , Vírus da Influenza A Subtipo H1N1 , Influenza Humana/diagnóstico , Influenza Humana/virologia , Masculino , Pessoa de Meia-Idade , Pandemias , Projetos Piloto , Pneumonia Viral/diagnóstico , Pneumonia Viral/epidemiologia , Pneumonia Viral/virologia , Prevalência , Estudos Prospectivos , Reação em Cadeia da Polimerase em Tempo Real , Suíça
10.
J Chromatogr A ; 1626: 461355, 2020 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-32797835

RESUMO

Quantification of the gas streams from chemical systems such as catalytic reactors are routinely performed by on-line gas chromatography. Gas chromatographs used for this purpose are typically provided with a combination of thermal conductivity (TCD) and flame ionization (FID) detectors to be able to detect and quantify both permanent gases; COx, N2, H2, etc., and hydrocarbons. However, the accuracy of the quantification is hindered by the intrinsic limitations of each type of detector. Namely, TCD has low sensitivity and FID does not detect permanent gases. Therefore, modern gas chromatographs include methanizer units to partially overcome this shortcoming by converting COx to methane. However, as far as these authors know, the literature has not presented an analytical method to characterize gas streams with high accuracy by the simultaneous use of a combination of a TCD-FID detection system provided with a methanizer. This work is an attempt to solve this problematic; it consists of the formulation of a mathematical model for the well-known external and internal standard quantification methods in gas chromatography. The analysis of the gas stream from a catalytic reactor performing the combustion of methane was used to validate the developed method. The concentration ranges of the analysed gases were: 0.8-7.7 vol% of CH4, CO2, and CO, 7.7-38.5 vol.% of O2, and 46.2-90.8 vol.% of N2 at a total flow of 130 mL min-1. It was found that the commonly applied external standard method leads not only to inaccurate quantification but also to physically meaningless carbon balances and conclusions on the behaviour of the selected model system. In contrast, the internal standard method led to a highly accurate quantification with a physically meaningful carbon balance. Considering these findings, this contribution also draws attention to the need for a thoughtful application of chromatographic methods when studying the reactivity of gas systems.


Assuntos
Cromatografia Gasosa/métodos , Gases/análise , Sistemas On-Line , Carbono/análise , Catálise , Ionização de Chama , Metano/análise , Oxigênio/análise , Padrões de Referência , Reprodutibilidade dos Testes , Condutividade Térmica
11.
Z Orthop Unfall ; 158(4): 345-350, 2020 Aug.
Artigo em Inglês, Alemão | MEDLINE | ID: mdl-32819007

RESUMO

New communication technologies allow patients to communicate with their physicians from anywhere using computer or smartphone. Adding video to the mere phone call optimizes the personal contact between patient and physicians regardless of distance. Legal and reimbursements requirements must be taken into account, especially only certified software products must be used. In addition, patient consent is needed and confidentiality must be assured. The video patient consultation can be reimbursed by the health insurance companies. As with all new technologies, the introduction of these video consultations faced some challenges. Although patients and physicians have expressed great interest in this technology, it has been rarely used so far. The current COVID crisis increased the need for video consultations resulting in an increasing use of video patient consultation. It can be expected that this demand will still exists after the COVID crisis.


Assuntos
Betacoronavirus , Infecções por Coronavirus , Pandemias , Pneumonia Viral , Telemedicina , Humanos , Sistemas On-Line , Encaminhamento e Consulta
12.
J Chromatogr A ; 1628: 461486, 2020 Sep 27.
Artigo em Inglês | MEDLINE | ID: mdl-32822970

RESUMO

In this work, an inexpensive, fast, and selective ionic liquid modified graphene oxide (GO-IL) was synthesized and electrochemically deposited on the inner surface of a stainless-steel tube. Then, it was applied for circulated headspace in-tube solid-phase microextraction (CHS-IT-SPME) of naphthalene from honey samples. Next, the coated tube was replaced with the sample loop of a six-port injection valve for on-line desorption and further HPLC-UV analysis of naphthalene. The sorbent was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FT-IR), and energy-dispersive X-ray spectroscopy (EDX). Different parameters affecting the procedure efficiency, including extraction temperature, extraction time, salt concentration, and sample volume were optimized by central composite design and response surface methodology. Under the optimum conditions, the calibration curve was linear within the range of 0.3-200 ng mL-1, with a regression coefficient of 0.9972. The limits of detection (LOD) and quantification (LOQ) were found to be 0.1 ng mL-1 and 0.3 ng mL-1, respectively. Intra-day and inter-day RSDs% for three replicate measurements of naphthalene at the concentration of 10 ng mL-1 were obtained 3.9% and 5.0%, respectively. Also, good tube-to-tube reproducibility of 5.3% was achieved. Finally, the method was successfully applied for measuring trace amounts of naphthalene in honey samples. Relative recoveries were calculated within the range of 90.0-106.5%, indicating excellent efficiency of the proposed method.


Assuntos
Cromatografia Líquida/métodos , Galvanoplastia/métodos , Grafite/química , Mel/análise , Líquidos Iônicos/química , Naftalenos/isolamento & purificação , Sistemas On-Line , Microextração em Fase Sólida/métodos , Cromatografia Líquida de Alta Pressão , Limite de Detecção , Nanoestruturas/química , Nanoestruturas/ultraestrutura , Reprodutibilidade dos Testes
13.
Plast Reconstr Surg ; 146(2): 343-354, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32740587

RESUMO

Routine measurement of outcome of clinical care is increasingly considered important, but implementation in practice is challenging. This article describes (1) how the authors created and implemented a routine outcome measurement cohort of patients with hand and wrist conditions and (2) how these data are used to improve the quality of care and facilitate scientific research. Starting in 2011, routine outcome measurement was implemented at all practice sites (currently 22) of a specialized treatment center for hand and wrist conditions across The Netherlands. The authors developed five "measurement tracks," including measurements administered at predetermined time points covering all hand and wrist disorders and treatments. An online system automatically distributes measurements among patients, which can be accessed by health care professionals. Using this system, the total number of yearly assigned tracks increased up to over 16,500 in 2018, adding up to 85,000 tracks in 52,000 patients in total. All surgeons, therapists, and other staff have direct access to individual patient data and patients have access to their treatment information using a secure patient portal. The data serve as a basis for studies on, among others, comparative effectiveness, prediction modeling, and clinimetric analyses. In conclusion, the authors present the design and successful implementation of a routine outcome measurement system that was made feasible using a highly automated data collection infrastructure, tightly linked to the patient journey and the workflow of health care professionals. The system serves not only as a tool to improve care but also as a basis for scientific research studies.


Assuntos
Implementação de Plano de Saúde , Doenças Musculoesqueléticas/terapia , Sistemas On-Line , Ortopedia/organização & administração , Avaliação de Resultados em Cuidados de Saúde/organização & administração , Estudos de Coortes , Coleta de Dados/métodos , Mãos/fisiopatologia , Humanos , Doenças Musculoesqueléticas/fisiopatologia , Países Baixos , Ortopedia/métodos , Avaliação de Resultados em Cuidados de Saúde/métodos , Medição da Dor , Melhoria de Qualidade , Punho/fisiopatologia
14.
Nurs Educ Perspect ; 41(5): 320-321, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32826689
15.
J Affect Disord ; 276: 14-22, 2020 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-32697692

RESUMO

With the rapid spread of global pandemic coronavirus disease 2019 (COVID-19), people around the world express panic in various behaviors. This affects the economy of the county, social values, and psychological stress of the people involved regardless of the directness of contact with the infected. This study aims to analyze the panic responses of the people as well as the perception on the global issue through an online survey. The researchers used Health Anxiety Inventory and open ended questions regarding the feelings, thoughts and actions of people during the enhanced community quarantine. Quantitative and qualitative data were both analyzed and interpreted interactively. Results also show that there is a significant difference (p = 0.028) in the Avoidance behavior between locations. Furthermore, a significant difference (p = 0.000) also shows on the Symptoms of Hypochondriasis between exposure to COVID-19. COVID-19 Panic Framework were also conceptualized with the following themes arranged from negative to positive behaviors: Indifference, Annihilation, Nihilism, Paranoia, Sadness, Fear, Transmission of Virus, Shock, Government Blaming, Anxiety, Relating to Past Pandemics, Worry on Self/Family/Others, Information Dissemination, Composure, Compliance, Protection, Cautiousness, Optimism, and Health Consciousness. In conclusion, levels of health anxiety were consistent regardless of location and exposure to COVID-19 patients. Lastly, spectrum of panic consequences due to COVID-19 pandemic were constructed.


Assuntos
Betacoronavirus , Infecções por Coronavirus , Pandemias , Pânico , Pneumonia Viral , Adolescente , Adulto , Idoso , Ansiedade , Humanos , Pessoa de Meia-Idade , Sistemas On-Line , Transtorno de Pânico , Inquéritos e Questionários , Adulto Jovem
16.
J Affect Disord ; 276: 30-37, 2020 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-32697713

RESUMO

BACKGROUND: Precisely how the COVID-19 pandemic has impacted mental health worldwide is currently poorly understood. The study aimed to assess panic and anxiety among individuals in the general Bangladesh population early in the COVID-19 outbreak. METHODOLOGY: A cross-sectional online survey was conducted from March 29 to April 06, 2020, involving 1311 community-dwelling individuals aged between 13 and 63 years and residing in Bangladesh. After providing informed consent, participants completed an online survey assessing socio-demographic variables and using the Panic Disorder Severity Scale and Generalized Anxiety Disorder (GAD-7) to assess panic and anxiety symptomatology, respectively. Binary logistic regression analyses were conducted. RESULTS: Estimates of panic and generalized anxiety were 79.6%, and 37.3%, respectively. Factors statistically predicting panic were being older (more than 30 years), having higher education (above bachelor), being married, and living with a joint family. Factors statistically predicting generalized anxiety were being female, being older (more than 30 years), having higher education (above bachelor), being married, being a non-governmental employee. LIMITATIONS: As this study employs the cross-sectional and self-reported measures, causal inferences cannot be indicated. Sampling biases may have influenced estimates of panic and generalized anxiety. CONCLUSION: Sizable proportions of respondents reported panic and generalized anxiety in the setting of COVID-19. The findings suggest the need for additional surveillance of panic and generalized anxiety through longitudinal assessments. Evidence-based intervention programs and supportive services to address panic and generalized anxiety appear important for Bangladeshi individuals during this stage (and likely later stages) of the COVID-19 pandemic.


Assuntos
Ansiedade , Betacoronavirus , Infecções por Coronavirus , Pandemias , Pânico , Pneumonia Viral , Adolescente , Adulto , Bangladesh , Infecções por Coronavirus/epidemiologia , Estudos Transversais , Surtos de Doenças , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Sistemas On-Line , Projetos Piloto , Pneumonia Viral/epidemiologia , Inquéritos e Questionários , Adulto Jovem
17.
J Chromatogr A ; 1625: 461276, 2020 Aug 16.
Artigo em Inglês | MEDLINE | ID: mdl-32709328

RESUMO

The monodisperse pillar[5]arene-based polymeric sub-microsphere was prepared by polycondensation of hydroxylated pillar[5]arene and cyanuric chloride through a one-pot reaction in mild condition. The preparation was realized by a simple two-step temperature-programmed process without heating operation. The obtained polymeric sub-microsphere exhibited monodisperse and regular spherical structure with uniform particle size distribution of 220-320 nm accounting for 94%. The prominent adsorption capacity of the polymeric sub-microsphere for antioxidants was demonstrated and attributed to the synergistic effect of the cladding interaction with the π-electron rich cavity and hydrophilic interaction with terminal hydroxyl on pillar[5]arene. Then the pillar[5]arene sub-microsphere was packed into a micro-column to realize effective on-line enrichment of antioxidants coupling with high-performance liquid chromatography (HPLC). The flow rate of extraction and desorption solvent, clean-up and desorption volume were assessed to optimize the method. The method showed wide linear ranges with R2 greater than 0.9926, low limits of detection (0.030-0.20 µg/L) and limits of quantification (0.10-0.67 µg/L). The developed method was successfully applied to determine trace antioxidants in the migration of food contact materials with simulated solution, which demonstrated the promising potential of this method for practical analysis. Furthermore, the migration behavior of antioxidants from food packaging materials into different food matrix was also investigated.


Assuntos
Antioxidantes/análise , Calixarenos/química , Cromatografia Líquida de Alta Pressão/métodos , Embalagem de Alimentos , Microesferas , Sistemas On-Line , Polímeros/química , Adsorção , Bebidas/análise , Interações Hidrofóbicas e Hidrofílicas , Tamanho da Partícula , Reprodutibilidade dos Testes , Solventes
19.
PLoS One ; 15(6): e0234422, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32584828

RESUMO

BACKGROUND: This longitudinal mixed methods experimental study aimed to better understand the interplay between digital technology exposure over time, self-efficacy, and prosocial behavior in everyday contexts. METHODS: 66 psychology students tracked their daily prosocial behavior over three weeks. Additionally, half of the participants were randomly assigned to receive access to an online platform, which made personalized suggestions for prosocial actions to complete. Qualitative post-study interviews complemented quantitative measures. RESULTS: Platform exposure had no measurable impact beyond that of tracking over time on either prosocial behavior or self-efficacy. Tracking increased self-efficacy to perform everyday prosocial actions, but did not affect self-efficacy to impact change. Prosocial behavior was predicted by self-efficacy to impact change. Enjoyment of the platform predicted completing higher numbers of suggested prosocial actions and was related to a higher likelihood to continue using the platform in the future. Avenues for increasing platform effectiveness include context-specific action personalization, an effective reminder system, and better support for the development of self-efficacy to impact change through meaningful actions. CONCLUSION: Technology for prosocial behavior should be enjoyable, capable of being seamlessly integrated into everyday life, and ensure that suggested actions are perceived as meaningful in order to support the sustainable development of self-efficacy and prosocial behavior over time.


Assuntos
Autoeficácia , Comportamento Social , Adolescente , Adulto , Tecnologia Educacional/métodos , Feminino , Humanos , Estudos Longitudinais , Masculino , Modelos Psicológicos , Redes Sociais Online , Sistemas On-Line , Medicina de Precisão , Recompensa , Apoio Social , Estudantes/psicologia , Interface Usuário-Computador , Adulto Jovem
20.
Rev Lat Am Enfermagem ; 28: e3303, 2020.
Artigo em Inglês, Português, Espanhol | MEDLINE | ID: mdl-32578753

RESUMO

OBJECTIVE: to analyze the immunization errors reported in an online Information System. METHOD: retrospective study conducted with data from the Adverse Event Following Immunization Surveillance Information System. Immunization errors were analyzed with respect to demographic characteristics and the vaccination process. Frequencies and error incidence rates have been calculated. Binomial and chi-square tests were used to verify differences in the proportions of the variables. RESULTS: 501 errors were analyzed, the majority involving routine doses (92.6%), without Adverse Event Following Immunization (90.6%) and in children under five years old (55.7%). The most frequent types of errors were inadequacy in the indication of the immunobiological (26.9%), inadequate interval between doses (18.2%) and error in the administration technique (14.2%). The overall error incidence rate was 4.05/100,000 doses applied; the highest incidences of routine vaccines were for human rabies vaccine, human papillomavirus and triple viral; the incidence rate of errors with Adverse Events Following Immunization was 0.45/100,000 doses applied. CONCLUSION: it was found that immunization errors are a reality to be faced by the health systems, but they are amenable to prevention through interventions such as the adoption of protocols, checklists and permanent education in health.


Assuntos
Imunização/efeitos adversos , Sistemas On-Line , Vacinação/efeitos adversos , Adolescente , Adulto , Criança , Pré-Escolar , Humanos , Lactente , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
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