10 research outputs found

    Global injury morbidity and mortality from 1990 to 2017 : results from the Global Burden of Disease Study 2017

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    Correction:Background Past research in population health trends has shown that injuries form a substantial burden of population health loss. Regular updates to injury burden assessments are critical. We report Global Burden of Disease (GBD) 2017 Study estimates on morbidity and mortality for all injuries. Methods We reviewed results for injuries from the GBD 2017 study. GBD 2017 measured injury-specific mortality and years of life lost (YLLs) using the Cause of Death Ensemble model. To measure non-fatal injuries, GBD 2017 modelled injury-specific incidence and converted this to prevalence and years lived with disability (YLDs). YLLs and YLDs were summed to calculate disability-adjusted life years (DALYs). Findings In 1990, there were 4 260 493 (4 085 700 to 4 396 138) injury deaths, which increased to 4 484 722 (4 332 010 to 4 585 554) deaths in 2017, while age-standardised mortality decreased from 1079 (1073 to 1086) to 738 (730 to 745) per 100 000. In 1990, there were 354 064 302 (95% uncertainty interval: 338 174 876 to 371 610 802) new cases of injury globally, which increased to 520 710 288 (493 430 247 to 547 988 635) new cases in 2017. During this time, age-standardised incidence decreased non-significantly from 6824 (6534 to 7147) to 6763 (6412 to 7118) per 100 000. Between 1990 and 2017, age-standardised DALYs decreased from 4947 (4655 to 5233) per 100 000 to 3267 (3058 to 3505). Interpretation Injuries are an important cause of health loss globally, though mortality has declined between 1990 and 2017. Future research in injury burden should focus on prevention in high-burden populations, improving data collection and ensuring access to medical care.Peer reviewe

    Mapping local patterns of childhood overweight and wasting in low- and middle-income countries between 2000 and 2017

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    A double burden of malnutrition occurs when individuals, household members or communities experience both undernutrition and overweight. Here, we show geospatial estimates of overweight and wasting prevalence among children under 5 years of age in 105 low- and middle-income countries (LMICs) from 2000 to 2017 and aggregate these to policy-relevant administrative units. Wasting decreased overall across LMICs between 2000 and 2017, from 8.4% (62.3 (55.1–70.8) million) to 6.4% (58.3 (47.6–70.7) million), but is predicted to remain above the World Health Organization’s Global Nutrition Target of <5% in over half of LMICs by 2025. Prevalence of overweight increased from 5.2% (30 (22.8–38.5) million) in 2000 to 6.0% (55.5 (44.8–67.9) million) children aged under 5 years in 2017. Areas most affected by double burden of malnutrition were located in Indonesia, Thailand, southeastern China, Botswana, Cameroon and central Nigeria. Our estimates provide a new perspective to researchers, policy makers and public health agencies in their efforts to address this global childhood syndemic

    Green and Biodegradable Thermosets and Vitrimers: Sustainable and Environmental Friendly Alternatives to Conventional Plastics for Sustainable Packaging

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    This thesis investigates the potential of sustainable and ecologically conscious materials as substitutes for traditional plastics. The primary emphasis is placed on examining biodegradable thermosets and vitrimers that are derived from renewable resources. The initial study examines the progression of naturally foamed composites derived from soybean oil, which incorporate substantial quantities of agricultural waste, as a sustainable alternative to StyrofoamTM. The synthesis of these composites involves the utilization of bio-based thermosets and their curing at a low temperature in the presence of agricultural waste. This approach renders them not only ecologically sustainable but also economically advantageous. Furthermore, the aforementioned composites have been specifically engineered to possess biodegradability properties when exposed to marine settings, hence effectively mitigating the concern of prolonged accumulation of plastic waste. The second study presents a novel vitrimer material that possesses both flexibility and stretchability. This vitrimer is composed of renewable resources, including epoxidized soybean oil, vanillin, biobased diamine Priamine, and oleic acid, which aligns with the principles of green chemistry. Vitrimers present a viable and environmentally conscious substitute for plastics derived from fossil fuels, showcasing remarkable attributes in terms of recycling and reprocessing capabilities. Moreover, these materials demonstrate exceptional barrier characteristics and minimal migration into food simulants, rendering them highly favorable for utilization in flexible food packaging endeavors. Moreover, it should be noted that these vitrimers possess the ability to undergo biodegradation in seawater, hence ensuring a secure and environmentally sound end-of-life scenario in the absence of appropriate management practices. This thesis aims to establish a connection between the fields of material science and environmental sustainability by exploring the potential of biodegradable composites and vitrimers. These materials have the ability to reduce the environmental impact caused by plastic-based products while also providing practical alternatives for a range of applications, such as packaging and marine conservation

    Investigating the Relationship between Work-related Quality of Life and Workload among Intensive care Unit Nurses in Tehran Hospitals

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    Background and Objective: Considering the importance of quality of work life among nurses working in the intensive care unit, it is important to identify the components that affect this index. Therefore, the present study aimed to investigate the relationship between workload and work-related quality of life among nurses working in the intensive care unit. Materials and Methods: In the present cross-sectional and descriptive-analytical study, 384 nurses working in the intensive care unit were studied in 2021. The NASA task load index (NASA TLX) was used to determine workload, and the work-Related Quality of Life Questionnaire (WRQoL) was used to determine the quality of their working life. The obtained data were entered into SPSS software and analyzed. Results: The results demonstrated that the most effective factor in increasing workload is a physical need, and the most important dimension affecting the quality of work life is job satisfaction. The correlation between quantitative demographic parameters with workload and quality of life indicators also pointed to the significant correlation of the mentioned indicators with age, work experience, and the number of shifts per month. Conclusion: As evidenced by the results of this study, there was an inverse relationship between workload and WRQoL. It is necessary for hospital managers to be aware of the existing conditions and reduce the factors affecting workload to increase the WRQoL of nurses

    Polylactic acid-graphene emulsion ink based conductive cotton fabrics

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    Manufacturing bio-based and biodegradable materials for electronic applications is a swiftly growing field today. This approach can effectively tackle the future electronic waste problems. However, the preparation of such sustainable materials with high conductivity remains a challenging task. Moreover, in many cases, the use of noxious solvents may be unavoidable. This study shows the feasibility of an aqueous emulsion-based printable conductive ink to be used in the field of flexible electronic devices. The emulsion ink contains polylactic acid (PLA) as a binder and graphene nanoplatelets as a conductive filler. It shows an encouraging electrical conductivity of 34.5 S/m when spray-coated onto a cotton fabric. Moreover, the conductive composite fabrics were very stable in cyclic strain tests, suitable for wearable electronics. A hot pressing post-treatment of the printed composite fabrics improved the electrical conductivity by up to two times. Additionally, the coatings also enhanced the mechanical properties of the cotton fabrics by increasing the Young's modulus values almost twice compared to pristine fabric. This eco-friendly composite ink can be used as strain sensors for transforming certain electronic components into biodegradable versions. (c) 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

    Biodegradable polylactic acid emulsion ink based on carbon nanotubes and silver for printed pressure sensors

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    Abstract Investigating biodegradable and biocompatible materials for electronic applications can lead to tangible outcomes such as developing green-electronic devices and reducing the amount of e-waste. The proposed emulsion-based conducting ink formulation takes into consideration circular economy and green principles throughout the entire process, from the selection of materials to the production process. The ink is formulated using the biopolymer polylactic acid dissolved in a sustainable solvent mixed with water, along with conductive carbon nanotubes (CNTs) and silver flakes as fillers. Hybrid conductive fillers can lower the percolation threshold of the ink and the production costs, while maintaining excellent electrical properties. The coating formed after the deposition of the ink, undergoes isothermal treatment at different temperatures and durations to improve its adhesion and electrical properties. The coating’s performance was evaluated by creating an eight-finger interdigitated sensor using a Voltera PCB printer. The sensor demonstrates exceptional performance when exposed to various loading and unloading pressures within the 0.2–500.0 kPa range. The results show a consistent correlation between the change in electrical resistance and the stress caused by the applied load. The ink is biodegradable in marine environments, which helps avoiding its accumulation in the ecosystem over time

    Carbon-α-Fe<sub>2</sub>O<sub>3</sub> Composite Active Material for High-Capacity Electrodes with High Mass Loading and Flat Current Collector for Quasi-Symmetric Supercapacitors

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    In this work, we report the synthesis of an active material for supercapacitors (SCs), namely α-Fe2O3/carbon composite (C-Fe2O3) made of elongated nanoparticles linearly connected into a worm-like morphology, by means of electrospinning followed by a calcination/carbonization process. The resulting active material powder can be directly processed in the form of slurry to produce SC electrodes with mass loadings higher than 1 mg cm−2 on practical flat current collectors, avoiding the need for bulky porous substrate, as often reported in the literature. In aqueous electrolyte (6 M KOH), the so-produced C-Fe2O3 electrodes display capacity as high as ~140 mAh g−1 at a scan rate of 2 mV s−1, while showing an optimal rate capability (capacity of 32.4 mAh g−1 at a scan rate of 400 mV s−1). Thanks to their poor catalytic activity towards water splitting reactions, the electrode can operate in a wide potential range (−1.6 V–0.3 V vs. Hg/HgO), enabling the realization of performant quasi-symmetric SCs based on electrodes with the same chemical composition (but different active material mass loadings), achieving energy density approaching 10 Wh kg−1 in aqueous electrolytes

    Injury burden in individuals aged 50 years or older in the Eastern Mediterranean region, 1990–2019: a systematic analysis from the Global Burden of Disease Study 2019

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    Background: Injury poses a major threat to health and longevity in adults aged 50 years or older. The increased life expectancy in the Eastern Mediterranean region warrants a further understanding of the ageing population's inevitable changing health demands and challenges. We aimed to examine injury-related morbidity and mortality among adults aged 50 years or older in 22 Eastern Mediterranean countries. Methods: Drawing on data from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2019, we categorised the population into adults aged 50–69 years and adults aged 70 years and older. We examined estimates for transport injuries, self-harm injuries, and unintentional injuries for both age groups, with sex differences reported, and analysed the percentage changes from 1990 to 2019. We reported injury-related mortality rates and disability-adjusted life-years (DALYs). The Socio-demographic Index (SDI) and the Healthcare Access and Quality (HAQ) Index were used to better understand the association of socioeconomic factors and health-care system performance, respectively, with injuries and health status in older people. Healthy life expectancy (HALE) was compared with injury-related deaths and DALYs and to the SDI and HAQ Index to understand the effect of injuries on healthy ageing. Finally, risk factors for injury deaths between 1990 and 2019 were assessed. 95% uncertainty intervals (UIs) are given for all estimates. Findings: Estimated injury mortality rates in the Eastern Mediterranean region exceeded the global rates in 2019, with higher injury mortality rates in males than in females for both age groups. Transport injuries were the leading cause of deaths in adults aged 50–69 years (43·0 [95% UI 31·0–51·8] per 100 000 population) and in adults aged 70 years or older (66·2 [52·5–75·5] per 100 000 population), closely followed by conflict and terrorism for both age groups (10·2 [9·3–11·3] deaths per 100 000 population for 50–69 years and 45·7 [41·5–50·3] deaths per 100 000 population for ≥70 years). The highest annual percentage change in mortality rates due to injury was observed in Afghanistan among people aged 70 years or older (400·4% increase; mortality rate 1109·7 [1017·7–1214·7] per 100 000 population). The leading cause of DALYs was transport injuries for people aged 50–69 years (1798·8 [1394·1–2116·0] per 100 000 population) and unintentional injuries for those aged 70 years or older (2013·2 [1682·2–2408·7] per 100 000 population). The estimates for HALE at 50 years and at 70 years in the Eastern Mediterranean region were lower than global estimates. Eastern Mediterranean countries with the lowest SDIs and HAQ Index values had high prevalence of injury DALYs and ranked the lowest for HALE at 50 years of age and HALE at 70 years. The leading injury mortality risk factors were occupational exposure in people aged 50–69 years and low bone mineral density in those aged 70 years or older. Interpretation: Injuries still pose a real threat to people aged 50 years or older living in the Eastern Mediterranean region, mainly due to transport and violence-related injuries. Dedicated efforts should be implemented to devise injury prevention strategies that are appropriate for older adults and cost-effective injury programmes tailored to the needs and resources of local health-care systems, and to curtail injury-associated risk and promote healthy ageing. Funding: Bill & Melinda Gates Foundation

    Global injury morbidity and mortality from 1990 to 2017: results from the Global Burden of Disease Study 2017

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    MAPPING LOCAL PATTERNS OF CHILDHOOD OVERWEIGHT AND WASTING IN LOW- AND MIDDLE-INCOME COUNTRIES BETWEEN 2000 AND 2017

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    A double burden of malnutrition occurs when individuals, household members or communities experience both undernutrition and overweight. Here, we show geospatial estimates of overweight and wasting prevalence among children under 5 years of age in 105 low- and middle-income countries (LMICs) from 2000 to 2017 and aggregate these to policy-relevant administrative units. Wasting decreased overall across LMICs between 2000 and 2017, from 8.4% (62.3 (55.1–70.8) million) to 6.4% (58.3 (47.6–70.7) million), but is predicted to remain above the World Health Organization’s Global Nutrition Target of <5% in over half of LMICs by 2025. Prevalence of overweight increased from 5.2% (30 (22.8–38.5) million) in 2000 to 6.0% (55.5 (44.8–67.9) million) children aged under 5 years in 2017. Areas most affected by double burden of malnutrition were located in Indonesia, Thailand, southeastern China, Botswana, Cameroon and central Nigeria. Our estimates provide a new perspective to researchers, policy makers and public health agencies in their efforts to address this global childhood syndemic
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