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217 Research products, page 1 of 22

  • Canada
  • 2021-2021
  • Other literature type
  • Project proposal
  • International Journal of Environmental Research and Public Health
  • ACU Research Bank

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  • Open Access
    Authors: 
    Jeanger P. Juanga-Labayen; Qiuyan Yuan;
    Publisher: MDPI AG
    Project: NSERC

    This study investigates the efficacy of using discarded textile (cotton and polycotton) and paper waste (newspaper and corrugated cardboard) as substrates to form sheets with optimum tensile strength. The effect of alkali treatment (sodium hydroxide (NaOH) and sodium bicarbonate (NaHCO3)), compressive loads (200 N and 500 N), and the use of binding agents (blackstrap molasses, sodium alginate, and cornstarch) were studied to optimize the tensile strength of homogeneous sheets. The alkali treatment using 5% NaOH for 5 h of soaking demonstrated the highest increase in tensile strength of 21% and 19% for cotton and newspaper, respectively. Increasing compressive load from 200 N to 500 N showed the highest increase in tensile strength of 37% and 42% for cotton and newspaper, respectively. Remarkably, among the binders, cornstarch at 20% concentration obtained an increase in tensile strength of 395%, 320%, 310%, and 185% for cotton, polycotton, corrugated cardboard, and newspaper sheets, respectively. The optimum results obtained from this study will be utilized to develop biodegradable seedling pots using discarded textile and paper waste.

  • Open Access English
    Authors: 
    Anita Minh; Ute Bültmann; Sijmen A. Reijneveld; Sander K R van Zon; Christopher B. McLeod;
    Country: Netherlands
    Project: CIHR

    Adolescent depressive symptoms are risk factors for lower education and unemployment in early adulthood. This study examines how the course of symptoms from ages 16–25 influences early adult education and employment in Canada and the USA. Using data from the National Longitudinal Survey of Children and Youth (n = 2348) and the National Longitudinal Survey of Youth 79 Child/Young Adult (n = 3961), four trajectories (low-stable and NEET, i.e., not in employment, education, or training). In both countries, increasing, decreasing, and mid-peak trajectories were associated with higher odds of working with low educational credentials, and/or NEET relative to low-stable trajectories. In Canada, however, all trajectories had a higher predicted probability of either being in school or working with a post-secondary degree than the other outcomes in the USA, all trajectory groups were most likely to be working with a high school degree. Higher depressive symptom levels at various points between adolescent and adulthood are associated with working with low education and NEET in Canada and the USA, but Canadians are more likely to have better education and employment outcomes. and increasing then decreasing, i.e., mid-peak) were linked to five outcomes (working with a post-secondary degree a high school degree increasing decreasing in school no degree

  • Open Access English
    Authors: 
    Elizabeth A. Ochola; Susan J. Elliott; Diana M. S. Karanja;
    Publisher: MDPI

    Neglected Tropical Diseases (NTDs) trap individuals in a cycle of poverty through their devastating effects on health, wellbeing and social–economic capabilities that extend to other axes of inequity such as gender and/or ethnicity. Despite NTDs being regarded as equity tracers, little attention has been paid toward gender dynamics and relationships for gender-equitable access to NTD programs in sub-Saharan Africa (SSA). This paper examines the impact of NTDs on women’s health and wellbeing in SSA using Kenya as a case study. This research is part of a larger research program designed to examine the impact of NTDs on the health and wellbeing of populations in Kenya. Thematic analysis of key informants’ interviews (n = 21) and focus groups (n = 5) reveals first that NTDs disproportionately affect women and girls due to their assigned gender roles and responsibilities. Second, women face financial and time constraints when accessing health care due to diminished economic power and autonomy. Third, women suffer more from the related social consequences of NTDs (that is, stigma, discrimination and/or abandonment), which affects their health-seeking behavior. As such, we strongly suggest a gender lens when addressing NTD specific exposure, socio-economic inequities, and other gender dynamics that may hinder the successful delivery of NTD programs at the local and national levels.

  • Publication . Article . Other literature type . 2021
    Open Access English
    Authors: 
    David A. Sleet; Louis Hugo Francescutti;
    Publisher: MDPI AG

    On any given night, hundreds of thousands of people are homeless in the United States and Canada [...]

  • Open Access English
    Authors: 
    Adriana Marcela Jácome Hortúa; Adriana Angarita-Fonseca; Carmen Juliana Villamizar Jaimes; Rocío del Pilar Martínez Marín; Hugo Celso Dutra de Souza; Tábata de Paula Facioli; Juan Carlos Sánchez-Delgado;
    Publisher: Suiza
    Country: Colombia

    and of these, 50% drop out prematurely. A modified Spanish Cardiac Rehabilitation Barriers Scale (CRBS) has been translated, culturally adapted and validated in Colombia, however, the reliability remains to be evaluated. This study aimed to determine the internal consistency and test–retest reliability of the CRBS in a Colombian population. In total, 193 patients (67% men, average age = 65 ± 12 years) completed the scale twice, with an average of eight days between applications. Cronbach’s Alpha and intraclass correlation coefficients (ICC) were calculated. The internal consistency of the Colombian version of the CRBS was acceptable (Cronbach’s alpha = 0.84). The ICC of the CRBS was 0.69 (95% CI 0.61–0.76) however, the reliability of the self-report version was lower. The use of this scale will allow developing strategies to increase participation and adherence to cardiac rehabilitation programs. Cardiac rehabilitation is supported by the highest level of scientific evidence. However, less than 25% of those eligible to participate in a cardiac rehabilitation program initiate it and 0.47 (95% CI 0.21–0.67) when the CRBS was self-reported. The reliability of the interview version of the CRBS was substantial in the Colombian population 0.78 (95% CI 0.71–0.84) when the CRBS was completed by interview

  • Open Access English
    Authors: 
    Mikyla A. Callaghan; Dédé Watchiba; Eva Purkey; Colleen Davison; Heather Michelle Aldersey; Susan A. Bartels;
    Publisher: MDPI AG

    Introduction and Objectives: It is well-documented that single mothers in sub-Saharan Africa face unique psychosocial challenges which can lead to child health and developmental disadvantages, often impacting life trajectories for both the mother and child. Years of instability, conflict, and widespread poor governance within the Democratic Republic of Congo (DRC) have resulted in magnified challenges for parents, making it more difficult to provide supportive and effective parenting. To address gaps in knowledge regarding the specific challenges experienced and adaptations made among single mothers raising children in contexts of adversity, the present study aimed to investigate the phenomenon of single mother parenting in the DRC. Methods: Cognitive Edge SenseMaker, a mixed-method data collection tool, was used to collect self-interpreted narratives among parents in eastern DRC. Quantitative SenseMaker data were uploaded into Tableau, a data organization and analysis tool, to visualize differences in response patterns between single mother (n = 263) and two-parent family study participants (n = 182). Single mother micronarratives (n = 251) were then coded line-by-line and analyzed thematically. Qualitative themes identified in the single mother micronarratives were used to facilitate a deeper and more nuanced understanding of key quantitative SenseMaker findings. Findings and Conclusions: Our study found that single mothers experienced immense challenges raising children in the DRC, including financial-, health- and parenting-related hardships. Single mothers described negative emotions and higher levels of household adversity while providing for their children in situations of extreme poverty compared to two-parent family respondents. Self-reliance was exhibited among most single mothers in an attempt to overcome challenges, primarily financial barriers, and to prioritize the health and well-being of their children. However, many children still lacked access to sufficient food, education, and healthcare. Limited governmental and social security support for single mothers was identified as contributing to heightened challenges and the self-reliance observed among single mothers. Findings emphasize that additional research and attention should be directed towards identifying the specific needs of, and available resources for, single mothers in different localities in an effort to inform policies and programs that best support families.

  • Open Access English
    Authors: 
    Krystin Carlson; Niladri Basu; Julius N. Fobil; Richard L. Neitzel;
    Publisher: Multidisciplinary Digital Publishing Institute

    Metals, such as lead, may be ototoxic, but this property is not well understood, especially in conjunction with noise. This cross-sectional study investigated hearing, noise, and metal biomarkers in informal electronic waste (e-waste) recycling workers in Accra, Ghana. Workers (N = 58) participated in audiometric testing, a survey, blood collection, and personal noise dosimetry. Sixty percent of participants displayed audiometric notches indicative of noise-induced hearing loss (NIHL). Most workers (86%) reported high noise while working. Daily average noise levels were in the range 74.4–90.0 dBA. Linear regression models indicated participants who lived at Agbogbloshie Market for longer periods were significantly associated with worse hearing thresholds at 4 and 6 kHz. The models did not identify blood levels of lead, mercury, or cadmium as significant predictors of worse hearing thresholds or larger noise notches, but increased levels of selenium were significantly associated with better hearing at 6 kHz. Models of thresholds at 4 and 6 kHz were improved by including an interaction term between the maximum noise exposure and the level of zinc in whole blood, suggesting that zinc may protect hearing at lower noise levels, but not at higher levels. Further study of the relationships between elements, noise, and NIHL is needed.

  • Open Access
    Authors: 
    Tong Zhu; Zishuo Zhu; Jie Zhang; Chenxuan Yang;

    Accidents involving electric bicycles, a popular means of transportation in China during peak traffic periods, have increased. However, studies have seldom attempted to detect the unique crash consequences during this period. This study aims to explore the factors influencing injury severity in electric bicyclists during peak traffic periods and provide recommendations to help devise specific management strategies. The random-parameters logit or mixed logit model is used to identify the relationship between different factors and injury severity. The injury severity is divided into four categories. The analysis uses automobile and electric bicycle crash data of Xi’an, China, between 2014 and 2019. During the peak traffic periods, the impact of low visibility significantly varies with factors such as areas with traffic control or without streetlights. Furthermore, compared with traveling in a straight line, three different turnings before the crash reduce the likelihood of severe injuries. Roadside protection trees are the most crucial measure guaranteeing riders’ safety during peak traffic periods. This study reveals the direction, magnitude, and randomness of factors that contribute to electric bicycle crashes. The results can help safety authorities devise targeted transportation safety management and planning strategies for peak traffic periods.

  • Open Access
    Authors: 
    Xiqiang Xia; Mengya Li; Biao Li; Hao Wang;

    Outsourcing remanufacturing is an important way to achieve resource recycling, green manufacturing and carbon neutrality goals. To analyze the impact of carbon trade on manufacturing/remanufacturing under outsourcing remanufacturing, this article builds a game model between an original equipment manufacturer (OEM) and a remanufacturer under the carbon trade policy. In the outsourcing remanufacturing model, this article compares the impact of the carbon trade policy on the unit retail price, sales volume, revenue, environmental impact, and consumer surplus of new and remanufactured products. The research mainly draws the following conclusions: (1) Carbon trade increases the prices of both new and remanufactured products and the cost of outsourcing. Only when certain conditions are met can increased carbon trade prices increase revenue. (2) The carbon trade policy helps reduce the adverse impact on the environment, but only when the carbon trade price is greater than a certain threshold can it increase consumer surplus. (3) Consumer preferences and carbon emissions of the unit product affect manufacturers’ profits. Increased consumer preference for remanufactured products and reduced carbon emissions of remanufactured products contribute to increased sales and revenues.

  • Open Access English
    Authors: 
    Joseph Asumah Braimah; Mark W. Rosenberg;
    Publisher: MDPI AG

    While existing research acknowledges copious challenges faced by older adults (people aged 60 and over) in Ghana and most countries in sub-Saharan Africa, they fail to situate the lived experiences of this vulnerable group within the broader context of health geography and public health. This paper draws insights from ecological systems theory and the “geographies of older people” literature to examine the lived experiences of older people in Ghana. Data for the study were gathered using interviews (42) and sharing circles (10). Our findings reveal a complex mix of experiences consistent with the different levels of the environment. Dominant themes include access to social support, functional impairment and poor health status, social status, poor access to water and sanitation services, food insecurity, economic insecurity, and caregiving burden. These findings support the wide-held notion that the experiences of older people are complex and produced by the interplay of both individual and structural factors. Our findings demonstrate that sociocultural, economic, political, and climatic factors are important consideration in promoting elderly wellbeing and quality of life in Ghana.

Advanced search in
Research products
arrow_drop_down
Searching FieldsTerms
Any field
arrow_drop_down
includes
arrow_drop_down
Include:
The following results are related to Canada. Are you interested to view more results? Visit OpenAIRE - Explore.
217 Research products, page 1 of 22
  • Open Access
    Authors: 
    Jeanger P. Juanga-Labayen; Qiuyan Yuan;
    Publisher: MDPI AG
    Project: NSERC

    This study investigates the efficacy of using discarded textile (cotton and polycotton) and paper waste (newspaper and corrugated cardboard) as substrates to form sheets with optimum tensile strength. The effect of alkali treatment (sodium hydroxide (NaOH) and sodium bicarbonate (NaHCO3)), compressive loads (200 N and 500 N), and the use of binding agents (blackstrap molasses, sodium alginate, and cornstarch) were studied to optimize the tensile strength of homogeneous sheets. The alkali treatment using 5% NaOH for 5 h of soaking demonstrated the highest increase in tensile strength of 21% and 19% for cotton and newspaper, respectively. Increasing compressive load from 200 N to 500 N showed the highest increase in tensile strength of 37% and 42% for cotton and newspaper, respectively. Remarkably, among the binders, cornstarch at 20% concentration obtained an increase in tensile strength of 395%, 320%, 310%, and 185% for cotton, polycotton, corrugated cardboard, and newspaper sheets, respectively. The optimum results obtained from this study will be utilized to develop biodegradable seedling pots using discarded textile and paper waste.

  • Open Access English
    Authors: 
    Anita Minh; Ute Bültmann; Sijmen A. Reijneveld; Sander K R van Zon; Christopher B. McLeod;
    Country: Netherlands
    Project: CIHR

    Adolescent depressive symptoms are risk factors for lower education and unemployment in early adulthood. This study examines how the course of symptoms from ages 16–25 influences early adult education and employment in Canada and the USA. Using data from the National Longitudinal Survey of Children and Youth (n = 2348) and the National Longitudinal Survey of Youth 79 Child/Young Adult (n = 3961), four trajectories (low-stable and NEET, i.e., not in employment, education, or training). In both countries, increasing, decreasing, and mid-peak trajectories were associated with higher odds of working with low educational credentials, and/or NEET relative to low-stable trajectories. In Canada, however, all trajectories had a higher predicted probability of either being in school or working with a post-secondary degree than the other outcomes in the USA, all trajectory groups were most likely to be working with a high school degree. Higher depressive symptom levels at various points between adolescent and adulthood are associated with working with low education and NEET in Canada and the USA, but Canadians are more likely to have better education and employment outcomes. and increasing then decreasing, i.e., mid-peak) were linked to five outcomes (working with a post-secondary degree a high school degree increasing decreasing in school no degree

  • Open Access English
    Authors: 
    Elizabeth A. Ochola; Susan J. Elliott; Diana M. S. Karanja;
    Publisher: MDPI

    Neglected Tropical Diseases (NTDs) trap individuals in a cycle of poverty through their devastating effects on health, wellbeing and social–economic capabilities that extend to other axes of inequity such as gender and/or ethnicity. Despite NTDs being regarded as equity tracers, little attention has been paid toward gender dynamics and relationships for gender-equitable access to NTD programs in sub-Saharan Africa (SSA). This paper examines the impact of NTDs on women’s health and wellbeing in SSA using Kenya as a case study. This research is part of a larger research program designed to examine the impact of NTDs on the health and wellbeing of populations in Kenya. Thematic analysis of key informants’ interviews (n = 21) and focus groups (n = 5) reveals first that NTDs disproportionately affect women and girls due to their assigned gender roles and responsibilities. Second, women face financial and time constraints when accessing health care due to diminished economic power and autonomy. Third, women suffer more from the related social consequences of NTDs (that is, stigma, discrimination and/or abandonment), which affects their health-seeking behavior. As such, we strongly suggest a gender lens when addressing NTD specific exposure, socio-economic inequities, and other gender dynamics that may hinder the successful delivery of NTD programs at the local and national levels.

  • Publication . Article . Other literature type . 2021
    Open Access English
    Authors: 
    David A. Sleet; Louis Hugo Francescutti;
    Publisher: MDPI AG

    On any given night, hundreds of thousands of people are homeless in the United States and Canada [...]

  • Open Access English
    Authors: 
    Adriana Marcela Jácome Hortúa; Adriana Angarita-Fonseca; Carmen Juliana Villamizar Jaimes; Rocío del Pilar Martínez Marín; Hugo Celso Dutra de Souza; Tábata de Paula Facioli; Juan Carlos Sánchez-Delgado;
    Publisher: Suiza
    Country: Colombia

    and of these, 50% drop out prematurely. A modified Spanish Cardiac Rehabilitation Barriers Scale (CRBS) has been translated, culturally adapted and validated in Colombia, however, the reliability remains to be evaluated. This study aimed to determine the internal consistency and test–retest reliability of the CRBS in a Colombian population. In total, 193 patients (67% men, average age = 65 ± 12 years) completed the scale twice, with an average of eight days between applications. Cronbach’s Alpha and intraclass correlation coefficients (ICC) were calculated. The internal consistency of the Colombian version of the CRBS was acceptable (Cronbach’s alpha = 0.84). The ICC of the CRBS was 0.69 (95% CI 0.61–0.76) however, the reliability of the self-report version was lower. The use of this scale will allow developing strategies to increase participation and adherence to cardiac rehabilitation programs. Cardiac rehabilitation is supported by the highest level of scientific evidence. However, less than 25% of those eligible to participate in a cardiac rehabilitation program initiate it and 0.47 (95% CI 0.21–0.67) when the CRBS was self-reported. The reliability of the interview version of the CRBS was substantial in the Colombian population 0.78 (95% CI 0.71–0.84) when the CRBS was completed by interview

  • Open Access English
    Authors: 
    Mikyla A. Callaghan; Dédé Watchiba; Eva Purkey; Colleen Davison; Heather Michelle Aldersey; Susan A. Bartels;
    Publisher: MDPI AG

    Introduction and Objectives: It is well-documented that single mothers in sub-Saharan Africa face unique psychosocial challenges which can lead to child health and developmental disadvantages, often impacting life trajectories for both the mother and child. Years of instability, conflict, and widespread poor governance within the Democratic Republic of Congo (DRC) have resulted in magnified challenges for parents, making it more difficult to provide supportive and effective parenting. To address gaps in knowledge regarding the specific challenges experienced and adaptations made among single mothers raising children in contexts of adversity, the present study aimed to investigate the phenomenon of single mother parenting in the DRC. Methods: Cognitive Edge SenseMaker, a mixed-method data collection tool, was used to collect self-interpreted narratives among parents in eastern DRC. Quantitative SenseMaker data were uploaded into Tableau, a data organization and analysis tool, to visualize differences in response patterns between single mother (n = 263) and two-parent family study participants (n = 182). Single mother micronarratives (n = 251) were then coded line-by-line and analyzed thematically. Qualitative themes identified in the single mother micronarratives were used to facilitate a deeper and more nuanced understanding of key quantitative SenseMaker findings. Findings and Conclusions: Our study found that single mothers experienced immense challenges raising children in the DRC, including financial-, health- and parenting-related hardships. Single mothers described negative emotions and higher levels of household adversity while providing for their children in situations of extreme poverty compared to two-parent family respondents. Self-reliance was exhibited among most single mothers in an attempt to overcome challenges, primarily financial barriers, and to prioritize the health and well-being of their children. However, many children still lacked access to sufficient food, education, and healthcare. Limited governmental and social security support for single mothers was identified as contributing to heightened challenges and the self-reliance observed among single mothers. Findings emphasize that additional research and attention should be directed towards identifying the specific needs of, and available resources for, single mothers in different localities in an effort to inform policies and programs that best support families.

  • Open Access English
    Authors: 
    Krystin Carlson; Niladri Basu; Julius N. Fobil; Richard L. Neitzel;
    Publisher: Multidisciplinary Digital Publishing Institute

    Metals, such as lead, may be ototoxic, but this property is not well understood, especially in conjunction with noise. This cross-sectional study investigated hearing, noise, and metal biomarkers in informal electronic waste (e-waste) recycling workers in Accra, Ghana. Workers (N = 58) participated in audiometric testing, a survey, blood collection, and personal noise dosimetry. Sixty percent of participants displayed audiometric notches indicative of noise-induced hearing loss (NIHL). Most workers (86%) reported high noise while working. Daily average noise levels were in the range 74.4–90.0 dBA. Linear regression models indicated participants who lived at Agbogbloshie Market for longer periods were significantly associated with worse hearing thresholds at 4 and 6 kHz. The models did not identify blood levels of lead, mercury, or cadmium as significant predictors of worse hearing thresholds or larger noise notches, but increased levels of selenium were significantly associated with better hearing at 6 kHz. Models of thresholds at 4 and 6 kHz were improved by including an interaction term between the maximum noise exposure and the level of zinc in whole blood, suggesting that zinc may protect hearing at lower noise levels, but not at higher levels. Further study of the relationships between elements, noise, and NIHL is needed.

  • Open Access
    Authors: 
    Tong Zhu; Zishuo Zhu; Jie Zhang; Chenxuan Yang;

    Accidents involving electric bicycles, a popular means of transportation in China during peak traffic periods, have increased. However, studies have seldom attempted to detect the unique crash consequences during this period. This study aims to explore the factors influencing injury severity in electric bicyclists during peak traffic periods and provide recommendations to help devise specific management strategies. The random-parameters logit or mixed logit model is used to identify the relationship between different factors and injury severity. The injury severity is divided into four categories. The analysis uses automobile and electric bicycle crash data of Xi’an, China, between 2014 and 2019. During the peak traffic periods, the impact of low visibility significantly varies with factors such as areas with traffic control or without streetlights. Furthermore, compared with traveling in a straight line, three different turnings before the crash reduce the likelihood of severe injuries. Roadside protection trees are the most crucial measure guaranteeing riders’ safety during peak traffic periods. This study reveals the direction, magnitude, and randomness of factors that contribute to electric bicycle crashes. The results can help safety authorities devise targeted transportation safety management and planning strategies for peak traffic periods.

  • Open Access
    Authors: 
    Xiqiang Xia; Mengya Li; Biao Li; Hao Wang;

    Outsourcing remanufacturing is an important way to achieve resource recycling, green manufacturing and carbon neutrality goals. To analyze the impact of carbon trade on manufacturing/remanufacturing under outsourcing remanufacturing, this article builds a game model between an original equipment manufacturer (OEM) and a remanufacturer under the carbon trade policy. In the outsourcing remanufacturing model, this article compares the impact of the carbon trade policy on the unit retail price, sales volume, revenue, environmental impact, and consumer surplus of new and remanufactured products. The research mainly draws the following conclusions: (1) Carbon trade increases the prices of both new and remanufactured products and the cost of outsourcing. Only when certain conditions are met can increased carbon trade prices increase revenue. (2) The carbon trade policy helps reduce the adverse impact on the environment, but only when the carbon trade price is greater than a certain threshold can it increase consumer surplus. (3) Consumer preferences and carbon emissions of the unit product affect manufacturers’ profits. Increased consumer preference for remanufactured products and reduced carbon emissions of remanufactured products contribute to increased sales and revenues.

  • Open Access English
    Authors: 
    Joseph Asumah Braimah; Mark W. Rosenberg;
    Publisher: MDPI AG

    While existing research acknowledges copious challenges faced by older adults (people aged 60 and over) in Ghana and most countries in sub-Saharan Africa, they fail to situate the lived experiences of this vulnerable group within the broader context of health geography and public health. This paper draws insights from ecological systems theory and the “geographies of older people” literature to examine the lived experiences of older people in Ghana. Data for the study were gathered using interviews (42) and sharing circles (10). Our findings reveal a complex mix of experiences consistent with the different levels of the environment. Dominant themes include access to social support, functional impairment and poor health status, social status, poor access to water and sanitation services, food insecurity, economic insecurity, and caregiving burden. These findings support the wide-held notion that the experiences of older people are complex and produced by the interplay of both individual and structural factors. Our findings demonstrate that sociocultural, economic, political, and climatic factors are important consideration in promoting elderly wellbeing and quality of life in Ghana.