42 research outputs found
The effect of digital game-based learning on student learning: A literature review
Digital game-based learning can be used by educators to support students in developing skills. This review examined the effect of digital game-based learning on student learning at the K-12 level. Sixteen peer-reviewed research studies, two meta-analysis studies, and two literature reviews published between 2011-2019 were selected for analysis. The reviewed research indicated that when digital game-based learning is used that includes key game design elements (collaboration, choice, feedback) as well as instructional design, there typically is a positive impact on student engagement. Research also indicated that digital game-based learning along with collaboration can have a significant effect on student motivation, however, the addition of instructions and feedback were not found to have a significant effect. Individual studies on digital game-based learning showed a significant positive impact on student achievement, while one of two meta-analysis studies found that there was a small effect size for digital game-based learning on student achievement in mathematics. Further studies should be conducted on digital game-based learning at the K-12 level over an extended period of time with the addition of game design elements and instructional design. More studies where empirical/statistical data is collected, and involving content area experts in research was recommended
Investigating Childhood Overweight and Obesity in Rural Settings
Childrenâs risk for overweight and obesity is particularly high in rural areas of the United States. Many health, psychosocial, and economic consequences are associated with childhood overweight and obesity, which concerns health researchers and professionals. But how and why might rural children be more at risk for being overweight and obese? This dissertation investigates childhood overweight and obesity in rural settings through three separate studies.
First, a systematic literature review was conducted to identify determinants and mechanisms of childhood obesity-related behaviors that are specific to rural locations. The findings from the review show that lack of health resources and poverty within the rural environment may impact childrenâs social environment and individual factors. However, results are inconclusive and there continues to be a lack of studies focusing on linking environmental influence with individual factors.
Second, a meta-analysis of current research evidence was conducted to assess the efficacy of rural interventions designed to reduce childhood overweight and obesity. Results showed that interventions have been efficacious yet modest, with a mean effect size of 0.18. Moderating variables were also examined. Mean intervention effect size was moderated by childrenâs age and intervention duration.
Last, secondary data were used to examine the association between rural food stores and availability and affordability of fresh fruits and vegetables. A multilevel analytical approach was used to determine if rural location was associated with availability and affordability of fresh fruits and vegetables. After controlling for other variables, results showed that rural location was not associated with fruit and vegetable availability and affordability.
The findings from this dissertation suggest that the area of rural childhood overweight and obesity remains understudied. More research is needed in order to understand the mechanisms of social ecological influences on diet, physical activity, and childhood overweight and obesity. This area of research, however, is rife with opportunities for public health education and promotion. Public health educators can help promote and advocate for environmental conditions that support healthy lifestyles
Caregiversâ Attitudes Toward Milk Fat Type and Milk Consumption Among WIC Participants: An Exploratory Study
Factors such as parental/caregiver influences and socioeconomic status have been shown to impact food-related attitudes and behaviors. Consequently, these attitudes and behaviors affect health outcomes. The purpose of this study was to assess, using the Social Cognitive Theory (SCT), attitudes toward milk fat type and milk consumption among Texas WIC participants. Few studies, using this theoretical framework, have examined milk intake specifically among this population. Four hypotheses were proposed according to the theoretical model. The inclusionary criteria used for this study yielded a subset sample of 2,115; all cases included were Texas WIC participants. The results of this study show that caregivers' attitudes toward drinking and offering milk fat type are related. Caregivers' attitudes toward drinking milk fat type and the type of milk they drank were proven to be statistically significant. Similarly, caregivers' attitudes toward offering milk fat type and the milk fat type their children drank were proven to be significant. Caregivers' milk intakes were positively associated with children's milk intakes. It is evident that parental/caregiver modeling influences children's dietary habits. Parental/caregiver behaviors are important influences to consider when implementing nutrition education programs or intervention efforts, especially for participants of WIC. Improving caregivers' attitudes toward low-fat or fat-free milk intake can also contribute to healthier food-related choices
Skin Cancer and UV Exposure-Related Behaviors Among Appalachian and Non-Appalachian Adults
Introduction: Appalachian communities experience elevated rates of cancer incidence and mortality relative to other regions in the U.S. Specifically, melanoma mortality rates are higher in Appalachia compared to the national average, despite comparable incidence rates.
Purpose: To examine differences in self-reported history of skin cancer and prevalence of two UV exposure behaviors between Appalachian and non-Appalachian adults in a nationally representative sample.
Methods: Data are from four cross-sectional cycles of the Health Information National Trends Survey (2011â2014) (N=14,451). We examined sunscreen use and tanning bed use, and self-reported history of melanoma and non-melanoma skin cancer. Descriptive and weighted multivariable analyses were conducted to examine sunscreen and tanning bed use, controlling for sociodemographic characteristics.
Results: Approximately 8% of the study sample resided in Appalachia (n=1,015). Self-reported melanoma (0.6%) and non-melanoma (3.2%) skin cancer histories were low among Appalachians and did not differ statistically from non-Appalachians (p\u3e0.05). Only 21.2% of Appalachians reported using sunscreen often or always when going outside for more than one hour on a warm, sunny day compared to 27.4% of non-Appalachians (p\u3c0.05). In separate multivariable logistic regressions, Appalachians reported lower odds of sunscreen use compared to non-Appalachian (OR=0.76, p=0.04), but there were no regional differences in tanning bed use (OR=1.48, p=0.23) when controlling for sociodemographics and general health status.
Implications: Appalachians had comparable histories of self-reported melanoma and non-melanoma skin cancer but were less likely to report sunscreen use than non-Appalachians. Enhanced communication efforts to promote sunscreen use and other UV protection behaviors in Appalachia may be valuable
Health Behaviors among Students with Different Weight Change Outcomes
Studies have identified various behavioral and environmental factors associated with physical inactivity and unhealthy diet among children and adults. While the lifestyles of college students may be risk factors to the development of an unhealthy body weight, they have not been sufficiently studied in previous research. Utilizing the dataset collected from a larger project, Campus Environment, Diet and Activity (CEDA), this study examines physical activity (PA), dietary behaviors, and perceptions of environmental barriers among those who have lost, maintained, or gained weight after living on a campus environment for one year. Method: The pretest data (focusing on past behaviors before moving to campus) and the posttest data (after moving to campus) were collected among incoming freshmen at Texas A&M University during Fall 2008 and Spring 2009 via an online questionnaire. Using the posttest data (N=235), participants were categorized into three groups based on their weight change status. Descriptive statistics were assessed and ANOVA was used to test differences in three outcome variables across the groups. Results: Descriptive statistics showed that on average students who gained weight had lower PA levels, had lower fruit and vegetable consumption, and had increased consumption of carbonated beverages (soda), snack chips, vending machine food, and fast food meals compared to students who lost or maintained weight. However, based on ANOVA, only several variables were marginally significant (p\u3c0.2) within the groups. Post hoc tests showed significant differences (p\u3c0.1) in means in terms of PA, fruit consumption, and perceived total number of environmental barriers to PA on campus between students who gained, lost or maintained weight. Demographic factors such as ethnicity (Latino or non-Latino), personal income, employment status, gender, and others were not associated with weight change outcomes. Conclusions: Few variables were statistically significant with weight change status. Since students form lifestyle habits that may be carried into adulthood, they represent an important population group for interventions that promote healthy behaviors. Further research is needed in order to assess which factors are more significantly associated with weight change among college students
Counselling psychology: a position paper
This Position Paper aims to provide a global perspective on Counselling Psychology for the purpose of education and creating a unifying voice. The Position Paper begins with a brief introduction - stating its unique purpose and value. It presents the history of Counselling Psychology, investigating its roots and the emergence of the tension between empirical science and humanistic practices; the contextual history of Counselling Psychology in various nations is also presented. Next, the philosophy of Counselling Psychology is discussed, highlighting its core pillars. The professional competencies are outlined, emphasising the many roles, areas of expertise, and work environments that Counselling Psychologists work in. The latter part of the document showcases the unique value of Counselling Psychologists and the embodiment of its core values particularly in centring the human experiences in context
ATL9, a RING Zinc Finger Protein with E3 Ubiquitin Ligase Activity Implicated in Chitin- and NADPH Oxidase-Mediated Defense Responses
Pathogen associated molecular patterns (PAMPs) are signals detected by plants that activate basal defenses. One of these PAMPs is chitin, a carbohydrate present in the cell walls of fungi and in insect exoskeletons. Previous work has shown that chitin treatment of Arabidopsis thaliana induced defense-related genes in the absence of a pathogen and that the response was independent of the salicylic acid (SA), jasmonic acid (JA) and ethylene (ET) signaling pathways. One of these genes is ATL9 (â=âATL2G), which encodes a RING zinc-finger like protein. In the current work we demonstrate that ATL9 has E3 ubiquitin ligase activity and is localized to the endoplasmic reticulum. The expression pattern of ATL9 is positively correlated with basal defense responses against Golovinomyces cichoracearum, a biotrophic fungal pathogen. The basal levels of expression and the induction of ATL9 by chitin, in wild type plants, depends on the activity of NADPH oxidases suggesting that chitin-mediated defense response is NADPH oxidase dependent. Although ATL9 expression is not induced by treatment with known defense hormones (SA, JA or ET), full expression in response to chitin is compromised slightly in mutants where ET- or SA-dependent signaling is suppressed. Microarray analysis of the atl9 mutant revealed candidate genes that appear to act downstream of ATL9 in chitin-mediated defenses. These results hint at the complexity of chitin-mediated signaling and the potential interplay between elicitor-mediated signaling, signaling via known defense pathways and the oxidative burst
âBe Sustainableâ: EOSC-Life Recommendations for Implementation of FAIR Principles in Life Science Data Handling
The main goals and challenges for the life science communities in the Open Science framework are to increase reuse and sustainability of data resources, software tools, and workflows, especially in large-scale data-driven research and computational analyses. Here, we present key findings, procedures, effective measures and recommendations for generating and establishing sustainable life science resources based on the collaborative, cross-disciplinary work done within the EOSC-Life (European Open Science Cloud for Life Sciences) consortium. Bringing together 13 European life science research infrastructures, it has laid the foundation for an open, digital space to support biological and medical research. Using lessons learned from 27 selected projects, we describe the organisational, technical, financial and legal/ethical challenges that represent the main barriers to sustainability in the life sciences. We show how EOSC-Life provides a model for sustainable data management according to FAIR (findability, accessibility, interoperability, and reusability) principles, including solutions for sensitive- and industry-related resources, by means of cross-disciplinary training and best practices sharing. Finally, we illustrate how data harmonisation and collaborative work facilitate interoperability of tools, data, solutions and lead to a better understanding of concepts, semantics and functionalities in the life sciences
Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK.
BACKGROUND: A safe and efficacious vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), if deployed with high coverage, could contribute to the control of the COVID-19 pandemic. We evaluated the safety and efficacy of the ChAdOx1 nCoV-19 vaccine in a pooled interim analysis of four trials. METHODS: This analysis includes data from four ongoing blinded, randomised, controlled trials done across the UK, Brazil, and South Africa. Participants aged 18 years and older were randomly assigned (1:1) to ChAdOx1 nCoV-19 vaccine or control (meningococcal group A, C, W, and Y conjugate vaccine or saline). Participants in the ChAdOx1 nCoV-19 group received two doses containing 5âĂâ1010 viral particles (standard dose; SD/SD cohort); a subset in the UK trial received a half dose as their first dose (low dose) and a standard dose as their second dose (LD/SD cohort). The primary efficacy analysis included symptomatic COVID-19 in seronegative participants with a nucleic acid amplification test-positive swab more than 14 days after a second dose of vaccine. Participants were analysed according to treatment received, with data cutoff on Nov 4, 2020. Vaccine efficacy was calculated as 1â-ârelative risk derived from a robust Poisson regression model adjusted for age. Studies are registered at ISRCTN89951424 and ClinicalTrials.gov, NCT04324606, NCT04400838, and NCT04444674. FINDINGS: Between April 23 and Nov 4, 2020, 23â848 participants were enrolled and 11â636 participants (7548 in the UK, 4088 in Brazil) were included in the interim primary efficacy analysis. In participants who received two standard doses, vaccine efficacy was 62·1% (95% CI 41·0-75·7; 27 [0·6%] of 4440 in the ChAdOx1 nCoV-19 group vs71 [1·6%] of 4455 in the control group) and in participants who received a low dose followed by a standard dose, efficacy was 90·0% (67·4-97·0; three [0·2%] of 1367 vs 30 [2·2%] of 1374; pinteraction=0·010). Overall vaccine efficacy across both groups was 70·4% (95·8% CI 54·8-80·6; 30 [0·5%] of 5807 vs 101 [1·7%] of 5829). From 21 days after the first dose, there were ten cases hospitalised for COVID-19, all in the control arm; two were classified as severe COVID-19, including one death. There were 74â341 person-months of safety follow-up (median 3·4 months, IQR 1·3-4·8): 175 severe adverse events occurred in 168 participants, 84 events in the ChAdOx1 nCoV-19 group and 91 in the control group. Three events were classified as possibly related to a vaccine: one in the ChAdOx1 nCoV-19 group, one in the control group, and one in a participant who remains masked to group allocation. INTERPRETATION: ChAdOx1 nCoV-19 has an acceptable safety profile and has been found to be efficacious against symptomatic COVID-19 in this interim analysis of ongoing clinical trials. FUNDING: UK Research and Innovation, National Institutes for Health Research (NIHR), Coalition for Epidemic Preparedness Innovations, Bill & Melinda Gates Foundation, Lemann Foundation, Rede D'Or, Brava and Telles Foundation, NIHR Oxford Biomedical Research Centre, Thames Valley and South Midland's NIHR Clinical Research Network, and AstraZeneca
Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK
Background
A safe and efficacious vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), if deployed with high coverage, could contribute to the control of the COVID-19 pandemic. We evaluated the safety and efficacy of the ChAdOx1 nCoV-19 vaccine in a pooled interim analysis of four trials.
Methods
This analysis includes data from four ongoing blinded, randomised, controlled trials done across the UK, Brazil, and South Africa. Participants aged 18 years and older were randomly assigned (1:1) to ChAdOx1 nCoV-19 vaccine or control (meningococcal group A, C, W, and Y conjugate vaccine or saline). Participants in the ChAdOx1 nCoV-19 group received two doses containing 5âĂâ1010 viral particles (standard dose; SD/SD cohort); a subset in the UK trial received a half dose as their first dose (low dose) and a standard dose as their second dose (LD/SD cohort). The primary efficacy analysis included symptomatic COVID-19 in seronegative participants with a nucleic acid amplification test-positive swab more than 14 days after a second dose of vaccine. Participants were analysed according to treatment received, with data cutoff on Nov 4, 2020. Vaccine efficacy was calculated as 1â-ârelative risk derived from a robust Poisson regression model adjusted for age. Studies are registered at ISRCTN89951424 and ClinicalTrials.gov, NCT04324606, NCT04400838, and NCT04444674.
Findings
Between April 23 and Nov 4, 2020, 23â848 participants were enrolled and 11â636 participants (7548 in the UK, 4088 in Brazil) were included in the interim primary efficacy analysis. In participants who received two standard doses, vaccine efficacy was 62·1% (95% CI 41·0â75·7; 27 [0·6%] of 4440 in the ChAdOx1 nCoV-19 group vs71 [1·6%] of 4455 in the control group) and in participants who received a low dose followed by a standard dose, efficacy was 90·0% (67·4â97·0; three [0·2%] of 1367 vs 30 [2·2%] of 1374; pinteraction=0·010). Overall vaccine efficacy across both groups was 70·4% (95·8% CI 54·8â80·6; 30 [0·5%] of 5807 vs 101 [1·7%] of 5829). From 21 days after the first dose, there were ten cases hospitalised for COVID-19, all in the control arm; two were classified as severe COVID-19, including one death. There were 74â341 person-months of safety follow-up (median 3·4 months, IQR 1·3â4·8): 175 severe adverse events occurred in 168 participants, 84 events in the ChAdOx1 nCoV-19 group and 91 in the control group. Three events were classified as possibly related to a vaccine: one in the ChAdOx1 nCoV-19 group, one in the control group, and one in a participant who remains masked to group allocation.
Interpretation
ChAdOx1 nCoV-19 has an acceptable safety profile and has been found to be efficacious against symptomatic COVID-19 in this interim analysis of ongoing clinical trials