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1.
JAMA Surg ; 2024 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-39320932

RESUMO

This study uses life cycle analysis to comprehensively evaluate the environmental impact of a pediatric surgical kit, including water consumption and greenhouse gas emissions.

2.
ACS Sustain Chem Eng ; 12(32): 12161-12170, 2024 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-39148516

RESUMO

Nonisocyanate polyurethanes (NIPUs) show promise as more sustainable alternatives to conventional isocyanate-based polyurethanes (PUs). In this study, polyhydroxyurethane (PHU) and nonisocyanate polythiourethane (NIPTU) production and reprocessing models inform the results of a techno-economic analysis and a life cycle assessment. The profitability of selling PHU and NIPTU is rationalized by identifying significant production costs, indicating that raw materials drive the costs of PHU and NIPTU production and reprocessing. After stepping along a path of process improvements, PHU and NIPTU can achieve minimum selling prices (MSPs) of 3.15 and 4.39 USD kg-1, respectively. Depolymerization yields need to be optimized, and polycondensation reactions need to be investigated for the reprocessing of NIPUs into secondary (2°) NIPUs. Of the NIPUs examined here, PHU has a low depolymerization yield and NIPTU has a high depolymerization yield. Fossil energy use, greenhouse gas (GHG) emissions, and water consumption are reported for the biobased production of PHU, NIPTU, 2° PHU, and 2° NIPTU and compared with baseline values for fossil-based PU production. There are options for reducing environmental impacts, which could make these pathways more sustainable. If barriers to implementation are overcome, 2° NIPUs can be manufactured at lower cost and environmental impacts than those of virgin NIPUs.

3.
Environ Sci Technol Lett ; 11(7): 654-663, 2024 Jul 09.
Artigo em Inglês | MEDLINE | ID: mdl-39006816

RESUMO

Sustainable water management is essential to increasing water availability and decreasing water pollution. The wastewater sector is expanding globally and beginning to incorporate technologies that recover nutrients from wastewater. Nutrient recovery increases energy consumption but may reduce the demand for nutrients from virgin sources. We estimate the increase in annual global energy consumption (1,100 million GJ) and greenhouse gas emissions (84 million t CO2e) for wastewater treatment in the year 2030 compared to today's levels to meet sustainable development goals. To capture these trends, integrated assessment and computable general equilibrium models that address the energy-water nexus must evolve. We reviewed 16 of these models to assess how well they capture wastewater treatment plant energy consumption and GHG emissions. Only three models include biogas production from the wastewater organic content. Four explicitly represent energy demand for wastewater treatment, and eight include explicit representation of wastewater treatment plant greenhouse gas emissions. Of those eight models, six models quantify methane emissions from treatment, five include representation of emissions of nitrous oxide, and two include representation of emissions of carbon dioxide. Our review concludes with proposals to improve these models to better capture the energy-water nexus associated with the evolving wastewater treatment sector.

4.
Int J Orthop Trauma Nurs ; 54: 101121, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39029151

RESUMO

OBJECTIVES: This study investigated patient reported outcomes, and associations with improvement in quality of life 12-months after total hip arthroplasty (THA). MATERIALS AND METHODS: PARTICIPANTS: Adults (n = 433) undergoing THA for osteoarthritis between January 2017 and October 2020 in a large publicly funded tertiary hospital in New Zealand. Participants completed patient reported outcome measures of pain, function and quality of life (QOL) preoperatively, 6- and 12-months following THA. RESULTS: Clinically significant changes in domains of pain and function were associated with improved QOL, even when pre-operation scores were controlled for. The largest gains in all three domains occurred in the pre-to 6-month post-operation period. Baseline demographic variables such as gender and comorbidities were not associated with change in QOL pre-to post-operation. However, although modest, age at surgery was negatively correlated with change in QOL. CONCLUSIONS: THA contributes to substantial improvements in QOL, pain and function outcomes, and although possibly tempered by age, these relationships are likely to be inter-related and mutually reinforcing. Future QOL outcomes research should also consider the impacts on QOL improvement of other aspects of functioning such as psychological and social wellbeing.


Assuntos
Artroplastia de Quadril , Dor Pós-Operatória , Qualidade de Vida , Humanos , Artroplastia de Quadril/psicologia , Qualidade de Vida/psicologia , Feminino , Masculino , Pessoa de Meia-Idade , Idoso , Nova Zelândia , Dor Pós-Operatória/psicologia , Osteoartrite do Quadril/cirurgia , Osteoartrite do Quadril/psicologia , Medidas de Resultados Relatados pelo Paciente , Medição da Dor , Recuperação de Função Fisiológica , Adulto , Idoso de 80 Anos ou mais
5.
ACS Sustain Chem Eng ; 12(28): 10351-10362, 2024 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-39027727

RESUMO

Shale gas is revolutionizing the U.S. energy and chemical commodity landscape and can ease the transition to a sustainable decarbonized economy. This work develops an equation-oriented (EO) multiscale modeling framework using the open-source IDAES-PSE platform that tractably incorporates microkinetic detail in process design via reduced-order kinetic (ROK) models. Using multiobjective optimization with embedded heat integration and life-cycle analysis, we simultaneously minimize the minimum selling price of liquid hydrocarbons (e.g., liquid fuels/additives from shale gas) and process emissions (via a CO2 tax). Optimization reduces greenhouse gas emissions per MJ of fuel produced by over 35% compared to the literature and achieves a carbon efficiency of 87%. The optimizer changes the recycling rate, temperatures, and pressures to mitigate the effect of ROK model-form uncertainty on product portfolio predictions. Moreover, we show that the optimal process design is insensitive to changing CO2 tax rates. Finally, the EO framework enables a fast sensitivity analysis of shale gas composition variability across 12 regions of the Eagle Ford basin. These results highlight the benefits of the open-source EO framework: fast, scalable, customized, and reproducible system analysis and optimization for sustainable energy technologies beyond shale utilization.

6.
Brain Inj ; 38(8): 607-619, 2024 Jul 02.
Artigo em Inglês | MEDLINE | ID: mdl-38597651

RESUMO

BACKGROUND: We investigated the extent of literature and findings on relationships between vestibular issues, noise sensitivity (NS), and anxiety. We were interested in how relationships among these factors impacted adults' recovery three months or more after mild traumatic brain injury (mTBI). METHODS: We conducted a scoping review to evaluate the extent of evidence linking relationships between vestibular issues, NS and anxiety with recovery after mTBI. Data relating to study characteristics and key findings were extracted and used to inform a critical narrative synthesis of findings. RESULTS: After screening and full-text review, we included two studies. Both studies considered the combination of vestibular issues, NS and anxiety and mTBI recovery. Vestibular issues, NS and anxiety were all significantly associated with one another and their presence was the strongest indicator that symptoms would extend beyond three-months after mTBI. CONCLUSION: Few studies have focused on the relationships that vestibular issues, NS and anxiety have with one another and recovery after mTBI. Given the apparent strong relationships between these factors and prolonged recovery, we highlight this as an area warranting further investigation.


Vestibular issues, noise sensitivity and anxiety all appear to impact on recovery from mild traumatic brain injury.There appear to be quite strong relationships between vestibular, noise sensitivity and anxiety symptoms following mild traumatic brain injury.More work exploring these key symptoms and how they impact recovery from mild traumatic brain injury using a wide range of study methods and approaches are needed to advance the field.


Assuntos
Ansiedade , Concussão Encefálica , Humanos , Ansiedade/etiologia , Ansiedade/psicologia , Concussão Encefálica/psicologia , Concussão Encefálica/complicações , Adulto , Ruído , Recuperação de Função Fisiológica/fisiologia , Doenças Vestibulares/psicologia
7.
Ergonomics ; : 1-11, 2024 Mar 08.
Artigo em Inglês | MEDLINE | ID: mdl-38456824

RESUMO

This study investigates the multidirectional upper limb strength of individuals with a C4-C7 spinal cord injury (SCI) and non-disabled individuals in a seated position by measuring multidirectional force at the hand. Current literature lacks quantitative strength data to evaluate strength requirements for people who have reduced upper limb function due to a cervical SCI. Seated multidirectional force measurements were recorded for eleven non-disabled and ten males with a C4-C7 SCI. Collected data was displayed using detailed force polar plots. The resulting plots revealed a clear difference in polar plot shape for non-disabled participants and participants with a C4-C7 SCI. Namely that SCI participants had more elliptical polar plots due to reductions in circumferential strength compared to non-disabled participants. However, the polar plots for higher SCIs tended to have an increasingly more circular shape. The results provide insight into the differences in strength between people with cervical SCI and no disability.


This paper presents seated multidirectional arm strength data from 21 SCI and non-disabled participants. Force polar plots display the applied force magnitudes and directions for reachable points which can be used to evaluate the force requirements based on SCI level. Results highlighted strength reductions for people with higher SCIs.

8.
Environ Sci Technol ; 58(11): 4957-4967, 2024 Mar 19.
Artigo em Inglês | MEDLINE | ID: mdl-38446013

RESUMO

Electrification and clean hydrogen are promising low-carbon options for decarbonizing industrial process heat, which is an essential target for reducing sector-wide emissions. However, industrial processes with heat demand vary significantly across industries in terms of temperature requirements, capacities, and equipment, making it challenging to determine applications for low-carbon technologies that are technically and economically feasible. In this analysis, we develop a framework for evaluating life cycle emissions, water use, and cost impacts of electric and clean hydrogen process heat technologies and apply it in several case studies for plastics and petrochemical manufacturing industries in the United States. Our results show that industrial heat pumps could reduce emissions by 12-17% in a typical poly(vinyl chloride) (PVC) facility in certain locations currently, compared to conventional natural gas combustion, and that other electric technologies in PVC and ethylene production could reduce emissions by nearly 90% with a sufficiently decarbonized electric grid. Life cycle water use increases significantly in all low-carbon technology cases. The levelized cost of heat of viable low-carbon technologies ranges from 15 to 100% higher than conventional heating systems, primarily due to energy costs. We discuss results in the context of relevant policies that could be useful to manufacturing facilities and policymakers for aiding the transition to low-carbon process heat technologies.


Assuntos
Cloreto de Vinil , Estados Unidos , Temperatura Alta , Carbono , Instalações Industriais e de Manufatura , Etilenos , Hidrogênio , Água
9.
Small ; 20(33): e2309579, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38530067

RESUMO

Liquid phase exfoliation (LPE) of graphene is a potentially scalable method to produce conductive graphene inks for printed electronic applications. Among LPE methods, wet jet milling (WJM) is an emerging approach that uses high-speed, turbulent flow to exfoliate graphene nanoplatelets from graphite in a continuous flow manner. Unlike prior WJM work based on toxic, high-boiling-point solvents such as n-methyl-2-pyrollidone (NMP), this study uses the environmentally friendly solvent ethanol and the polymer stabilizer ethyl cellulose (EC). Bayesian optimization and iterative batch sampling are employed to guide the exploration of the experimental phase space (namely, concentrations of graphite and EC in ethanol) in order to identify the Pareto frontier that simultaneously optimizes three performance criteria (graphene yield, conversion rate, and film conductivity). This data-driven strategy identifies vastly different optimal WJM conditions compared to literature precedent, including an optimal loading of 15 wt% graphite in ethanol compared to 1 wt% graphite in NMP. These WJM conditions provide superlative graphene production rates of 3.2 g hr-1 with the resulting graphene nanoplatelets being suitable for screen-printed micro-supercapacitors. Finally, life cycle assessment reveals that ethanol-based WJM graphene exfoliation presents distinct environmental sustainability advantages for greenhouse gas emissions, fossil fuel consumption, and toxicity.

10.
Neuropsychiatr Dis Treat ; 20: 341-352, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38410688

RESUMO

Purpose: Farmers have suicide rates much higher than the general population, with elevated mental health symptoms and high stress levels. Farmers are a hard-to-reach population due to occupational demands and a culture where conversations about mental health are often stigmatizing. This study explored ways to tailor suicide prevention strategies to unique characteristics of farmers by speaking with groups close to farmers who were open to discussing stress and suicide prevention: women married to farmers and agricultural Extension agents. Methods: Focus groups with women married to farmers (N=29) and interviews with agricultural agents from the university's local Cooperative Extension offices (N=13) from rural Georgia counties explored effective ways outreach and education about suicide prevention, mental health, and coping could be provided to farmers. Using a thematic analysis approach, qualitative coding was completed by two researchers (Cohens kappa=0.86), with initial codes collapsed into common themes. Results: Four themes were identified: 1) Barriers due to the nature of farming, including time demands of farming and cultural stigma in help-seeking; 2) Acceptable messaging, including framing conversations as part of general health; 3) Make information accessible by making it brief, clear, and omnipresent through multiple media; and 4) Elements of effective information and education, including emphasizing "you're not alone" and connection, how to access supports and crisis services, educating people close to farmers, and motivating farmers by emphasizing that they could help another farmer with the information. Conclusion: Due to farmers' stoic identities and reluctance to admit mental health struggles, speaking with those close to farmers may help us better understand what is needed to tailor farmer suicide prevention strategies. The insights shared by participants suggest that culturally responsive outreach and education strategies, strengthening relationships through peer support, and gatekeeper training with specific trusted others are important ways to tailor suicide prevention strategies for this hard-to-reach group.

11.
J Patient Exp ; 10: 23743735231211886, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38026063

RESUMO

Understanding human functioning and disablement, the contributing factors and their interactions in individuals with tetraplegia is important since elective upper extremity (UE) reconstructive surgery is now offered earlier after injury prior to full recognition of what lies ahead. Qualitative and quantitative data were available from a prior series of mixed methods studies, including a case series design capturing the patients' lived-experience perspectives of nerve or tendon transfer surgery, or not as the case may be. The objective of this study was to perform secondary data analysis to determine whether the recommended outcome tools being used by clinicians reflect the all important domains of functioning identified by people with tetraplegia who were considering UE reconstructive procedures. The original 18 candidate themes derived from qualitative analysis were reviewed in retrospect, along with a content analysis of the tools' questions, undertaking word mapping links to the ICF taxonomy. The outcomes tools included in the content analysis were the Canadian Occupational Performance Measure, the Capabilities of Upper Extremity Questionnaire, The Personal Wellbeing Index, and the Grasp and Release Test. Comparison between clinical outcomes tools and the patient lived-experience data uniquely identified links to Chapter1 (b) Mental functions, which include consciousness, orientation, temperament/personality, energy/drive, and higher-level cognition.

12.
Hand Ther ; 28(1): 16-32, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37904811

RESUMO

Introduction: Complex Regional Pain Syndrome (CRPS) is most common in the upper limb and associated with high disability. The purpose of this review was to critically appraise and synthesise literature exploring non-pharmacological treatment for upper limb CRPS, to guide upper-limb-specific management. Methods: Using an integrative review methodology, 13 databases were searched to identify all published studies on non-pharmacological management of upper limb CRPS. The Crowe Critical Appraisal Tool was used to provide quality ratings for included studies, and analysis employed a qualitative descriptive approach. Results: From 236 abstracts reviewed, 113 full texts were read, and 38 articles selected for data extraction. Designs included single case (n = 14), randomised controlled trial (n = 8), prospective cohort (n = 8), case series (n = 4), retrospective (n = 3), and mixed methods (n = 1). Interventions were categorised as sensory retraining (n = 13), kinesiotherapy (n = 7), manual therapies (n = 7), physical modalities (n = 6), and interdisciplinary treatment programmes (n = 5). All studies measured pain intensity, and most (n = 24) measured physical parameters such as strength, movement, or perceptual abilities. Few measured patient-rated function (n = 13) or psychological factors (n = 4). Quality ratings ranged from 30% to 93%, with a median of 60%. Conclusion: Methodological quality of non-pharmacological treatment approaches for upper limb CRPS is overall poor. Movement, desensitisation, and graded functional activity remain the mainstays of intervention. However, despite the impact of CRPS on wellbeing and function, psychological factors and functional outcomes are infrequently addressed. Further robust research is required to determine which aspects of treatment have the greatest influence on which symptoms, and when and how these should be introduced and progressed.

13.
Pain Med ; 24(12): 1355-1363, 2023 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-37584744

RESUMO

INTRODUCTION: Complex Regional Pain Syndrome (CRPS) most frequently affects the upper limb, with high associated disability. Delays to diagnosis and appropriate treatment can adversely impact prognosis and quality of life, but little is known about the healthcare experiences of people with CRPS. This study aimed to explore lived experiences of diagnosis and treatment for people with upper limb CRPS. METHODS: Participants were recruited through online support groups and multiple public and private healthcare settings in the Greater Wellington Region, New Zealand. Semi-structured interviews were conducted with participants who had experienced upper limb CRPS for more than three months and less than three years. Interviews were transcribed verbatim and analysed using reflexive thematic analysis. RESULTS: Thirteen participants (11 female, 2 male) aged between 43 and 68 years were interviewed. Duration of CRPS ranged from 7 months to 2.5 years. Five themes were identified. Participants initially engaged in healthcare out of a desire to return to being the person they were before having CRPS. Three interacting experiences epitomised the overall healthcare experience: (1) not knowing what is going on, (2) not being taken seriously, and (3) healthcare as adding another layer of load. Meanwhile, participants used multiple approaches in an attempt to not let CRPS stop them from continuing to live their lives. CONCLUSIONS: Participants in this study felt that credible information, validation, and simplification from healthcare providers and systems would support their process of navigating towards a meaningful life and self-concept in the presence of CRPS.


Assuntos
Síndromes da Dor Regional Complexa , Pessoas com Deficiência , Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Qualidade de Vida , Síndromes da Dor Regional Complexa/diagnóstico , Síndromes da Dor Regional Complexa/terapia , Síndromes da Dor Regional Complexa/complicações , Extremidade Superior , Pessoal de Saúde
14.
Bone Joint J ; 105-B(7): 821-832, 2023 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-37399113

RESUMO

Aims: Global literature suggests that female surgical trainees have lower rates of independent operating (operative autonomy) than their male counterparts. The objective of this study was to identify any association between gender and lead/independent operating in speciality orthopaedic trainees within the UK national training programme. Methods: This was a retrospective case-control study using electronic surgical logbook data from 2009 to 2021 for 274 UK orthopaedic trainees. Total operative numbers and level of supervision were compared between male and female trainees, with correction for less than full-time training (LTFT), prior experience, and time out during training (OOP). The primary outcome was the percentage of cases undertaken as lead surgeon (supervised and unsupervised) by UK orthopaedic trainees by gender. Results: All participants gave permission for their data to be used. In total, 274 UK orthopaedic trainees submitted data (65% men (n = 177) and 33% women (n = 91)), with a total of 285,915 surgical procedures logged over 1,364 trainee-years. Males were lead surgeon (under supervision) on 3% more cases than females (61% (115,948/189,378) to 58% (50,285/86,375), respectively; p < 0.001), and independent operator (unsupervised) on 1% more cases. A similar trend of higher operative numbers in male trainees was seen for senior (ST6 to 8) trainees (+5% and +1%; p < 0.001), those with no time OOP (+6% and +8%; p < 0.001), and those with orthopaedic experience prior to orthopaedic specialty training (+7% and +3% for lead surgeon and independent operator, respectively; p < 0.001). The gender difference was less marked for those on LTFT training, those who took time OOP, and those with no prior orthopaedic experience. Conclusion: This study showed that males perform 3% more cases as the lead surgeon than females during UK orthopaedic training (p < 0.001). This may be due to differences in how cases are recorded, but must engender further research to ensure that all surgeons are treated equitably during their training.


Assuntos
Procedimentos Ortopédicos , Ortopedia , Humanos , Masculino , Feminino , Ortopedia/educação , Estudos Retrospectivos , Estudos de Casos e Controles , Competência Clínica
15.
Spinal Cord ; 61(8): 466-468, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37402892

RESUMO

The Grasp and Release Test (GRT) was originally developed to measure effectiveness of an implanted neuroprosthesis in people with tetraplegia. Its ease of use and lack of floor and ceiling effects culminated in recommendations for inclusion in a battery of tests to measure outcome following upper limb reconstructive surgery. However, the length of time taken to administer the GRT in a clinical setting, lack of instructions of accepted grasp patterns in the upper limb reconstructive surgery population and scoring procedures lead to differences in reporting outcomes using this measure. In order to ensure clinical utility for the upper limb reconstructive surgery population, revisions of the original test instructions have been made and are reported in this article. Further testing of the psychometric properties of the new measure are currently underway.


Assuntos
Traumatismos da Medula Espinal , Humanos , Extremidade Superior/cirurgia , Mãos/cirurgia , Quadriplegia/diagnóstico , Quadriplegia/etiologia , Quadriplegia/cirurgia , Força da Mão
16.
Spinal Cord Ser Cases ; 9(1): 33, 2023 07 13.
Artigo em Inglês | MEDLINE | ID: mdl-37443167

RESUMO

STUDY DESIGN: Qualitative study using realist review. OBJECTIVES: To conceptualise how Early Intervention Vocational Rehabilitation (EIVR) functions within inpatient multidisciplinary contexts during spinal cord injury (SCI) rehabilitation. SETTING: New Zealand Spinal Unit. METHODS: People with newly acquired SCI and members of their rehabilitation team were observed in a range of rehabilitation sessions, team meetings and therapeutic interactions. Participants were also interviewed to explore how EIVR functioned alongside the multidisciplinary team (MDT). Interviews and observations were transcribed, coded and analysed using realist methods. RESULTS: We identified three primary contexts which influenced how EIVR was delivered within the MDT: (1) a united approach, (2) a flexible approach, and (3) a hesitant approach. These contexts generated four work-related outcomes for people with SCI; enhanced work self-efficacy, strengthened hope for work, maintained work identity, and the less desirable outcome of increased uncertainty about work. CONCLUSIONS: To optimise work outcomes for people after SCI, it is important to consider how EIVR is delivered and integrated within the wider MDT. Such an understanding can also inform the establishment of new EIVR services in different settings. Results suggest that unity, flexibility and clarity between EIVR services and the wider MDT are essential foundations for supporting people with SCI on their journey to employment. SPONSORSHIP: This research was funded by Health Research Council NZ grant in partnership with Canterbury District Health Board.


Assuntos
Reabilitação Vocacional , Traumatismos da Medula Espinal , Humanos , Reabilitação Vocacional/métodos , Traumatismos da Medula Espinal/reabilitação , Emprego/métodos , Pesquisa Qualitativa , Nova Zelândia
17.
Appl Ergon ; 110: 104023, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37071949

RESUMO

Understanding the limitations that are imposed by a disability is critical to ensure engineers develop designs that can be used by people with reduced function. Current literature lacks detail on this information for people with cervical spinal cord injuries. The purpose of this study was to investigate the reliability of a novel testing methodology to quantitatively assess the multi-directional upper limb strength of individuals in a seated position. Eleven non-disabled males and 10 males with a C4-C7 spinal cord injury completed isometric strength tests on parasagittal (XY) planes using a novel method. Multidirectional (XY) force measurements were taken at discrete points within the participant's reach envelope. Isometric force trends and analysis of the coefficients of variation were used to evaluate the novel methodology. The isometric force trends were consistent in showing a reduction in strength for people with higher injury levels. Analysis of the coefficient of variation showed that the methodology produces repeatable results with an average coefficient of variation of 18% and 19% for the right and left upper limbs, respectively. These results show that the novel testing methodology is a reliable way to gather quantitative multidirectional upper limb strength data for individuals in a seated position.


Assuntos
Postura Sentada , Traumatismos da Medula Espinal , Masculino , Humanos , Reprodutibilidade dos Testes , Extremidade Superior , Avaliação da Deficiência
18.
J Pers Med ; 13(3)2023 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-36983576

RESUMO

Cervical spinal cord injury (SCI) causing tetraplegia is extremely disabling. In such circumstances, restoration of upper extremity (UE) function is considered the highest priority. The advent of early nerve transfer (NT) procedures, in addition to more traditional tendon transfers (TT), warranted in-depth consideration given the time-limited nature of NT procedures. Potential surgery candidates may not yet have come to terms with the permanence of their disability. A mixed methods convergent design was utilized for concurrent analysis of the Aotearoa/New Zealand upper limb registry data from the clinical assessments of all individuals considering UE surgery, regardless of their final decision. The International Classification of Functioning, Disability and Health (ICF) taxonomy guided data interpretation during the three-phased study series. It was the integration of the findings using the Stewart Model of care drawn from palliative health that enabled the interpretation of higher order messages. It is clear the clinical assessment and selection processes in use require reconsideration given the complexities individuals face following onset of SCI. We draw attention to the higher order cognitive demands placed on individuals, the requirement for SCI peer involvement in decision making and the need for acknowledgment of interdependence as a relational construct when living with tetraplegia.

19.
Adv Mater ; 35(24): e2212042, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36934307

RESUMO

Solution-processed graphene is a promising material for numerous high-volume applications including structural composites, batteries, sensors, and printed electronics. However, the polydisperse nature of graphene dispersions following liquid-phase exfoliation poses major manufacturing challenges, as incompletely exfoliated graphite flakes must be removed to achieve optimal properties and downstream performance. Incumbent separation schemes rely on centrifugation, which is highly energy-intensive and limits scalable manufacturing. Here, cross-flow filtration (CFF) is introduced as a centrifuge-free processing method that improves the throughput of graphene separation by two orders of magnitude. By tuning membrane pore sizes between microfiltration and ultrafiltration length scales, CFF can also be used for efficient recovery of solvents and stabilizing polymers. In this manner, life cycle assessment and techno-economic analysis reveal that CFF reduces greenhouse gas emissions, fossil energy usage, water consumption, and specific production costs of graphene manufacturing by 57%, 56%, 63%, and 72%, respectively. To confirm that CFF produces electronic-grade graphene, CFF-processed graphene nanosheets are formulated into printable inks, leading to state-of-the-art thin-film conductivities exceeding 104 S m-1 . This CFF methodology can likely be generalized to other van der Waals layered solids, thus enabling sustainable manufacturing of the diverse set of applications currently being pursued for 2D materials.

20.
J Rehabil Med ; 55: jrm00363, 2023 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-36748979

RESUMO

BACKGROUND: Rates of return-to-work after stroke are low, yet work is known to positively impact people's wellbeing and overall health outcomes. OBJECTIVE: To understand return-to-work trajectories, barriers encountered, and resources that may be used to better support participants during early recovery and rehabilitation. PARTICIPANTS: The experiences of 31 participants (aged 25-76 years) who had or had not returned to work after stroke were explored. METHODS: Interview data were analysed using reflexive thematic analysis methods within a broader realist research approach. RESULTS: Participants identified an early need to explore a changed and changing occupational identity within a range of affirming environments, thereby ascertaining their return-to-work options early after stroke. The results articulate resources participants identified as most important for their occupational explorations. Theme 1 provides an overview of opportunities participants found helpful when exploring work options, while theme 2 explores fundamental principles for ensuring the provided opportunities were perceived as beneficial. Finally, theme 3 provides an overview of prioritized return-to-work service characteristics. CONCLUSION: The range and severity of impairments experienced by people following stroke are broad, and therefore their return-to-work needs are diverse. However, all participants, irrespective of impairment, highlighted the need for early opportunities to explore their changed and changing occupational identity.


Assuntos
Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Humanos , Retorno ao Trabalho , Pesquisa Qualitativa
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