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1.
PLoS One ; 18(11): e0293068, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37910461

RESUMEN

AIMS: To evaluate the impact of a lay health worker support role in the inpatient setting. BACKGROUND: Healthcare systems are facing critical nursing and nurse assistant staffing shortages. These disciplines can be challenging to recruit and retain, leading healthcare leaders to identify innovative staffing models. Whereas lay health workers have been used in the community and low-income setting, there is scant evidence of their use in the inpatient setting. We implemented a lay health worker role, called Patient Attendant Service Aides (PASAs), on two medical/surgical units at a community hospital. METHODS: A pre/post-implementation design was used for this study. An online survey was provided to nurses, nursing assistants, and PASAs on the two medical/surgical units to assess their satisfaction and perceptions of the role. Nursing quality metrics, patient satisfaction, and nursing and nursing assistant turnover were evaluated before and after implementing the role. RESULTS: The online survey showed that nurses and nursing assistants felt that PASAs helped offload their workload, allowing them to focus on nursing-related tasks. PASAs felt supported by the team and believed they were making a meaningful contribution to the unit. There were slight improvements in patient satisfaction, although not significant. There was a significant improvement in nursing turnover on Unit A, from 71.1% to 21.6% (p = 0.009). CONCLUSIONS: This is one of the first studies to evaluate the use of lay health workers in the inpatient setting; we found this role to be a feasible way to offload tasks from clinical staff. This role may serve as a pathway for workforce development, as several PASAs are now enrolled in nursing assistant training. Nurse managers may consider using lay health workers in the inpatient setting as they face severe clinical staff shortages.


Asunto(s)
Pacientes Internos , Personal de Enfermería en Hospital , Humanos , Carga de Trabajo , Fuerza Laboral en Salud , Recursos Humanos , Calidad de la Atención de Salud , Admisión y Programación de Personal
2.
Prog Transplant ; 33(2): 150-155, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-36938604

RESUMEN

Introduction: Kidney transplant graft function depends on optimised haemodynamics. However, high fluid volumes risk hypervolaemic complications. The Edwards Lifesciences ClearSight™ device permits fluid titration through markers of preload and beat-to-beat blood pressure monitoring. We evaluated the implementation of a novel goal-directed haemodynamic therapy protocol to determine whether patient outcomes had improved. Design: A retrospective evaluation of standard care versus goal-directed haemodynamic therapy in adults undergoing kidney transplantation was performed in a single centre between April 2016 and October 2019. Twenty-eight standard-of-care patients received intraoperative fixed-rate infusion and 28 patients received goal-directed haemodynamic therapy. The primary outcome was volume of fluid administered intraoperatively. Secondary outcomes included blood product and vasoactive drug exposure, graft and recipient outcomes. Results: Intraoperative fluid administered was significantly reduced in the goal-directed haemodynamic therapy cohort (4325 vs 2751 ml, P < .001). Exposure to vasopressor (67.9% vs 42.9%, P = .060) and blood products (17.9% vs 3.6%, P = .101) was unchanged. Immediate graft function (82.1% vs 75.0%, P = .515), dialysis requirement (14.3% vs 21.4%, P = .729) and creatinine changes post-operatively were unchanged. In the goal-directed haemodynamic therapy cohort, 1 patient had pulmonary oedema (3.6%) versus 21.4% in the standard cohort. Patients in the goal-directed haemodynamic therapy group were more likely to mobilise within 48 hours of surgery (number needed to treat = 3.5, P = .012). Conclusions: Protocolised goal-directed haemodynamic therapy in kidney transplantation was safe and may improve patient, graft, and surgical outcomes. Clinical trials assessing goal-directed approaches are needed.


Asunto(s)
Objetivos , Trasplante de Riñón , Adulto , Humanos , Estudios Retrospectivos , Fluidoterapia/métodos , Diálisis Renal , Hemodinámica/fisiología
3.
Lancet ; 398(10301): 698-708, 2021 08 21.
Artículo en Inglés | MEDLINE | ID: mdl-34419205

RESUMEN

Hot ambient conditions and associated heat stress can increase mortality and morbidity, as well as increase adverse pregnancy outcomes and negatively affect mental health. High heat stress can also reduce physical work capacity and motor-cognitive performances, with consequences for productivity, and increase the risk of occupational health problems. Almost half of the global population and more than 1 billion workers are exposed to high heat episodes and about a third of all exposed workers have negative health effects. However, excess deaths and many heat-related health risks are preventable, with appropriate heat action plans involving behavioural strategies and biophysical solutions. Extreme heat events are becoming permanent features of summer seasons worldwide, causing many excess deaths. Heat-related morbidity and mortality are projected to increase further as climate change progresses, with greater risk associated with higher degrees of global warming. Particularly in tropical regions, increased warming might mean that physiological limits related to heat tolerance (survival) will be reached regularly and more often in coming decades. Climate change is interacting with other trends, such as population growth and ageing, urbanisation, and socioeconomic development, that can either exacerbate or ameliorate heat-related hazards. Urban temperatures are further enhanced by anthropogenic heat from vehicular transport and heat waste from buildings. Although there is some evidence of adaptation to increasing temperatures in high-income countries, projections of a hotter future suggest that without investment in research and risk management actions, heat-related morbidity and mortality are likely to increase.


Asunto(s)
Cambio Climático , Calentamiento Global , Trastornos de Estrés por Calor/epidemiología , Trastornos de Estrés por Calor/etiología , Calor/efectos adversos , Exposición a Riesgos Ambientales , Trastornos de Estrés por Calor/mortalidad , Trastornos de Estrés por Calor/prevención & control , Humanos , Morbilidad/tendencias , Mortalidad/tendencias , Exposición Profesional , Fenómenos Fisiológicos , Deportes/fisiología , Urbanización
4.
Lancet ; 398(10301): 709-724, 2021 08 21.
Artículo en Inglés | MEDLINE | ID: mdl-34419206

RESUMEN

Heat extremes (ie, heatwaves) already have a serious impact on human health, with ageing, poverty, and chronic illnesses as aggravating factors. As the global community seeks to contend with even hotter weather in the future as a consequence of global climate change, there is a pressing need to better understand the most effective prevention and response measures that can be implemented, particularly in low-resource settings. In this Series paper, we describe how a future reliance on air conditioning is unsustainable and further marginalises the communities most vulnerable to the heat. We then show that a more holistic understanding of the thermal environment at the landscape and urban, building, and individual scales supports the identification of numerous sustainable opportunities to keep people cooler. We summarise the benefits (eg, effectiveness) and limitations of each identified cooling strategy, and recommend optimal interventions for settings such as aged care homes, slums, workplaces, mass gatherings, refugee camps, and playing sport. The integration of this information into well communicated heat action plans with robust surveillance and monitoring is essential for reducing the adverse health consequences of current and future extreme heat.


Asunto(s)
Aire Acondicionado/tendencias , Entorno Construido , Cambio Climático , Calor Extremo/efectos adversos , Calor/efectos adversos , Anciano , Envejecimiento , Agua Potable , Electricidad , Humanos
5.
Annu Rev Public Health ; 42: 293-315, 2021 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-33406378

RESUMEN

Extreme weather and climate events, such as heat waves, cyclones, and floods, are an expression of climate variability. These events and events influenced by climate change, such as wildfires, continue to cause significant human morbidity and mortality and adversely affect mental health and well-being. Although adverse health impacts from extreme events declined over the past few decades, climate change and more people moving into harm's way could alter this trend. Long-term changes to Earth's energy balance are increasing the frequency and intensity of many extreme events and the probability of compound events, with trends projected to accelerate under certain greenhouse gas emissions scenarios. While most of these events cannot be completely avoided, many of the health risks could be prevented through building climate-resilient health systems with improved risk reduction, preparation, response, and recovery. Conducting vulnerability and adaptation assessments and developing health system adaptation plans can identify priority actions to effectively reduce risks, such as disaster risk management and more resilient infrastructure. The risks are urgent, so action is needed now.


Asunto(s)
Cambio Climático , Atención a la Salud/organización & administración , Clima Extremo , Salud Poblacional , Salud Global , Humanos
6.
Artículo en Inglés | MEDLINE | ID: mdl-33260752

RESUMEN

The aim of building climate resilient and environmentally sustainable health care facilities is: (a) to enhance their capacity to protect and improve the health of their target communities in an unstable and changing climate; and (b) to empower them to optimize the use of resources and minimize the release of pollutants and waste into the environment. Such health care facilities contribute to high quality of care and accessibility of services and, by helping reduce facility costs, also ensure better affordability. They are an important component of universal health coverage. Action is needed in at least four areas which are fundamental requirements for providing safe and quality care: having adequate numbers of skilled human resources, with decent working conditions, empowered and informed to respond to these environmental challenges; sustainable and safe management of water, sanitation and health care waste; sustainable energy services; and appropriate infrastructure and technologies, including all the operations that allow for the efficient functioning of a health care facility. Importantly, this work contributes to promoting actions to ensure that health care facilities are constantly and increasingly strengthened and continue to be efficient and responsive to improve health and contribute to reducing inequities and vulnerability within their local settings. To this end, we propose a framework to respond to these challenges.


Asunto(s)
Cambio Climático , Instituciones de Salud , Recursos en Salud , Clima , Humanos , Saneamiento , Desarrollo Sostenible
7.
Exp Clin Transplant ; 18(5): 636-637, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32281533

RESUMEN

Wiskott-Aldrich syndrome is a rare primary immuno-deficiency disorder that is characterized by a triad of microthrombocytopenia, eczema, and recurrent infections. Progression to end-stage renal failure is common in survivors due to immunoglobulin A nephropathy. We describe the case of a 24-year-old male with Wiskott-Aldrich syndrome. The patient had previous hematopoietic stem cell transplant and was on hemodialysis due to end-stage renal failure. He subsequently underwent living-donor renal transplant from his mother as the donor. This is only the fifth case of renal transplant in a patient with Wiskott-Aldrich syndrome in the world. In all cases, the perioperative management of hemostatic function has been crucial. We used thromboelastography to guide our hemostatic decisions rather than platelet count, thus reducing exposure to unnecessary platelet transfusions and without increased bleeding risk. Our patient had an uneventful course after living-donor kidney transplant.


Asunto(s)
Glomerulonefritis por IGA/etiología , Fallo Renal Crónico/cirugía , Trasplante de Riñón , Transfusión de Plaquetas , Pruebas en el Punto de Atención , Tromboelastografía , Síndrome de Wiskott-Aldrich/complicaciones , Toma de Decisiones Clínicas , Glomerulonefritis por IGA/diagnóstico , Humanos , Fallo Renal Crónico/diagnóstico , Fallo Renal Crónico/etiología , Trasplante de Riñón/efectos adversos , Donadores Vivos , Masculino , Transfusión de Plaquetas/efectos adversos , Valor Predictivo de las Pruebas , Factores de Riesgo , Resultado del Tratamiento , Síndrome de Wiskott-Aldrich/diagnóstico , Adulto Joven
9.
Clin Kidney J ; 12(6): 880-887, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31807303

RESUMEN

BACKGROUND: There is a limited evidence base and no national consensus regarding the perioperative management of patients undergoing renal transplantation. We developed an electronic survey to capture an overview of renal transplant perioperative practice across UK renal transplant centres and determine the need for future guidelines on patient management. METHODS: A 29-question survey was developed to encompass the entire renal transplant perioperative pathway and input was sought from clinicians with expertise in renal transplant surgery, anaesthesia, nephrology and intensive care. The survey was sent to lead renal anaesthetists at each of the 23 transplant centres across the UK. RESULTS: A 96% response rate was achieved with 22 out of 23 centres returning complete responses. There was limited evidence of guideline-based approaches to preoperative workup. Questions regarding intraoperative fluid management, blood pressure targets, vasopressor administration and central venous pressure (CVP) monitoring identified a broad range of practice. Of note, the routine use of goal-directed fluid therapy based on cardiac output estimation was reported in six (27.3%) centres, while nine centres (40.9%) continue to target a specific CVP intraoperatively. In all, 12 (54.5%) centres perform transversus abdominis plane blocks with fentanyl-based patient-controlled analgesia as the most common mode of postoperative analgesia. A single centre reported a renal transplant-specific Enhanced Recovery after Surgery programme for cadaveric organ recipients. CONCLUSIONS: This questionnaire highlighted a high degree of heterogeneity in current UK practice as regards the perioperative management of renal transplant recipients. Development of evidence-based national consensus guidelines to standardize the perioperative care of these patients is recommended in order to improve patient outcomes and focus areas of future research.

10.
Artículo en Inglés | MEDLINE | ID: mdl-31315172

RESUMEN

Climate change impacts on the Canadian food system pose risks to human health. Little attention has been paid to the climate change, food security, and human health nexus, resulting in a number of knowledge gaps regarding food system components that are most vulnerable to climate change. The lack of understanding of key dynamics and possible future impacts challenges the ability of public health officials and partners in other sectors to prepare Canadians for future health risks. A series of literature reviews were conducted to establish the relationship between climate change, food security, and human health, and to identify vulnerabilities within the Canadian food system. Evidence suggests that key activities within the food system are vulnerable to climate change. The pathways in which climate change impacts travel through the food system and affect the critical dimensions of food security to influence human health outcomes are complex. Climate-related disruptions in the food system can indirectly impact human health by diminishing food security, which is a key determinant of health. Human health may also be directly affected by the physical effects of climate change on the food system, primarily related to the impacts on nutrition and foodborne illnesses. In this study, we propose a novel analytical framework to study and respond to the climate change, food security, and human health nexus. This work is intended to help public health officials, researchers, and relevant stakeholders investigate and understand current and future risks, and inform adaptation efforts to protect the health of Canadians.


Asunto(s)
Cambio Climático , Abastecimiento de Alimentos , Salud Poblacional , Canadá , Humanos
11.
Artículo en Inglés | MEDLINE | ID: mdl-31064134

RESUMEN

Climate change is increasing risks to the mental health of Canadians. Impacts from a changing climate may outstrip the ability of Canadians and their health-sustaining institutions to adapt effectively and could increase poor mental health outcomes, particularly amongst those most marginalized in society. A scoping review of literature published during 2000-2017 explored risks, impacts, and vulnerabilities related to climate change and mental health. In this commentary, the authors present a new assessment of evidence from this scoping review and highlight factors that influence the capacity to adapt to the mental health consequences of a changing climate. Findings from this assessment reveal eleven key factors that influence the capacity to adapt: social capital; sense of community; government assistance; access to resources; community preparedness; intersectoral/transdisciplinary collaboration; vulnerability and adaptation assessments; communication and outreach; mental health literacy; and culturally relevant resources. Attention to these factors by Canadian decision makers can support proactive and effective management of the mental health consequences of climate change.


Asunto(s)
Cambio Climático , Salud Mental , Canadá , Humanos
12.
Dimens Crit Care Nurs ; 38(3): 174-181, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30946126

RESUMEN

BACKGROUND: In recent years, the incidence of delirium has grown to epidemic proportions in the intensive care setting with up to 80% of mechanically ventilated patients being affected. This can lead to adverse patient outcomes such as increased lengths of hospital stay, increased mortality rates, and increased long-term cognitive impairment. OBJECTIVES: The objective of this project is to determine whether a quality improvement project can increase adherence to an existing pain, agitation, and delirium (PAD) protocol for enhanced patient outcomes. METHODS: Chart audits were conducted to determine baseline compliance, use of the PAD protocol was measured, and the type of medications administered to each mechanically ventilated patient was assessed. Using the Knowledge-to-Action framework, a multidisciplinary, multidimensional educational module was then developed and implemented that included an online tutorial, point-of-care reminders, written materials, and verbal coaching. A 3-month postimplementation chart audit was conducted to determine whether increased protocol competence was achieved. RESULTS: Protocol use unexpectedly decreased from 74% to 41% (P < .01);however, compliance with medication recommendations did increase despite the decrease in use. Intravenous opioid use increased from 12% to 40% (P ≤ .001), whereas sedative propofol infusions decreased from 82% to 35% (P ≤ .001). CONCLUSIONS: The implementation of a multidimensional, multidisciplinary project was successful in increasing compliance to the clinical practice guidelines for the management of PAD in adult intensive care unit patients, despite a decrease in protocol use. This unanticipated decrease in protocol use indicates the need for additional research in this area. Future recommendations also include a review of the existing PAD protocol to determine whether revisions could be made to better suit the needs of the staff while also improving patient outcomes in the arena of delirium experienced during critical care stays.


Asunto(s)
Protocolos Clínicos , Cuidados Críticos/métodos , Delirio/enfermería , Adhesión a Directriz/estadística & datos numéricos , Unidades de Cuidados Intensivos/organización & administración , Manejo del Dolor/enfermería , Agitación Psicomotora/enfermería , Mejoramiento de la Calidad , Humanos
13.
Artículo en Inglés | MEDLINE | ID: mdl-30477122

RESUMEN

Climate change is increasing risks to human health and to the health systems that seek to protect the safety and well-being of populations. Health authorities require information about current associations between health outcomes and weather or climate, vulnerable populations, projections of future risks and adaptation opportunities in order to reduce exposures, empower individuals to take needed protective actions and build climate-resilient health systems. An increasing number of health authorities from local to national levels seek this information by conducting climate change and health vulnerability and adaptation assessments. While assessments can provide valuable information to plan for climate change impacts, the results of many studies are not helping to build the global evidence-base of knowledge in this area. They are also often not integrated into adaptation decision making, sometimes because the health sector is not involved in climate change policy making processes at the national level. Significant barriers related to data accessibility, a limited number of climate and health models, uncertainty in climate projections, and a lack of funding and expertise, particularly in developing countries, challenge health authority efforts to conduct rigorous assessments and apply the findings. This paper examines the evolution of climate change and health vulnerability and adaptation assessments, including guidance developed for such projects, the number of assessments that have been conducted globally and implementation of the findings to support health adaptation action. Greater capacity building that facilitates assessments from local to national scales will support collaborative efforts to protect health from current climate hazards and future climate change. Health sector officials will benefit from additional resources and partnership opportunities to ensure that evidence about climate change impacts on health is effectively translated into needed actions to build health resilience.


Asunto(s)
Cambio Climático , Adaptación Psicológica , Salud Global , Humanos , Internacionalidad , Poblaciones Vulnerables
14.
Artículo en Inglés | MEDLINE | ID: mdl-30373158

RESUMEN

Vulnerability and adaptation assessments can provide valuable input to foster climate-resilient health systems. However, these assessments often do not explore the potential health risks of climate change far outside the range of recent experience with extreme weather events and other climate-related hazards. Climate and health stress tests are designed to increase the capacity of health systems and related sectors to manage potentially disruptive climate-related shocks and stresses. Stress tests focus on hypothetical scenarios, during which it would be difficult for the health system to maintain its essential function of providing services to protect population health. The stress test explores approaches to effectively manage acute and chronic climate-related events and conditions that could directly impact health systems, and climate-related events in non-health sectors that can indirectly impact health outcomes and/or health system function. We provide detailed methods and guidance for conducting climate and health stress tests, centering on three primary activities: (1) preparing and scoping the stress test; (2) successfully conducting the stress test; and (3) communicating the results to key stakeholders to facilitate policy and programmatic reforms.


Asunto(s)
Cambio Climático , Atención a la Salud/métodos , Práctica de Salud Pública , Programas de Gobierno , Planes de Sistemas de Salud , Humanos , Medición de Riesgo/métodos
16.
Artículo en Inglés | MEDLINE | ID: mdl-30597870

RESUMEN

A climate change and health vulnerability and adaptation assessment was conducted in Dominica, a Caribbean small island developing state located in the Lesser Antilles. The assessment revealed that the country's population is already experiencing many impacts on health and health systems from climate variability and change. Infectious diseases as well as food and waterborne diseases pose continued threats as climate change may exacerbate the related health risks. Threats to food security were also identified, with particular concern for food production systems. The findings of the assessment included near-term and long-term adaptation options that can inform actions of health sector decision-makers in addressing health vulnerabilities and building resilience to climate change. Key challenges include the need for enhanced financial and human resources to build awareness of key health risks and increase adaptive capacity. Other small island developing states interested in pursuing a vulnerability and adaptation assessment may find this assessment approach, key findings, analysis, and lessons learned useful.


Asunto(s)
Adaptación Fisiológica , Cambio Climático , Salud Pública/estadística & datos numéricos , Enfermedades Transmisibles/epidemiología , Dominica/epidemiología , Abastecimiento de Alimentos/estadística & datos numéricos , Enfermedades Transmitidas por los Alimentos/epidemiología , Humanos , Medición de Riesgo
17.
Rev Panam Salud Publica ; 40(3): 174-180, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27991975

RESUMEN

Extreme weather events have revealed the vulnerability of health care facilities and the extent of devastation to the community when they fail. With climate change anticipated to increase extreme weather and its impacts worldwide-severe droughts, floods, heat waves, and related vector-borne diseases-health care officials need to understand and address the vulnerabilities of their health care systems and take action to improve resiliency in ways that also meet sustainability goals. Generally, the health sector is among a country's largest consumers of energy and a significant source of greenhouse gas emissions. Now it has the opportunity lead climate mitigation, while reducing energy, water, and other costs. This Special Report summarizes several initiatives and compares three toolkits for implementing sustainability and resiliency measures for health care facilities: the Canadian Health Care Facility Climate Change Resiliency Toolkit, the U.S. Sustainable and Climate Resilient Health Care Facilities Toolkit, and the PAHO SMART Hospitals Toolkit of the World Health Organization/Pan American Health Organization. These tools and the lessons learned can provide a critical starting point for any health system in the Americas.


Asunto(s)
Cambio Climático , Instituciones de Salud , Tiempo (Meteorología) , Animales , Canadá , Vectores de Enfermedades , Sequías , Calor Extremo , Inundaciones , Humanos
18.
Rev Panam Salud Publica ; 40(3),sept. 2016
Artículo en Inglés | PAHO-IRIS | ID: phr-31233

RESUMEN

Extreme weather events have revealed the vulnerability of health care facilities and the extent of devastation to the community when they fail. With climate change anticipated to increase extreme weather and its impacts worldwide—severe droughts, floods, heat waves, and related vector-borne diseases—health care officials need to understand and address the vulnerabilities of their health care systems and take action to improve resiliency in ways that also meet sustainability goals. Generally, the health sector is among a country’s largest consumers of energy and a significant source of greenhouse gas emissions. Now it has the opportunity lead climate mitigation, while reducing energy, water, and other costs. This Special Report summarizes several initiatives and compares three toolkits for implementing sustainability and resiliency measures for health care facilities: the Canadian Health Care Facility Climate Change Resiliency Toolkit, the U.S. Sustainable and Climate Resilient Health Care Facilities Toolkit, and the PAHO SMART Hospitals Toolkit of the World Health Organization/Pan American Health Organization. These tools and the lessons learned can provide a critical starting point for any health system in the Americas.


Los sucesos climáticos extremos han puesto de manifiesto la vulnerabilidad de las instalaciones de atención sanitaria y el grado de devastación infligido a la comunidad cuando estas fallan. Ante un cambio climático que preanuncia un aumento de los sucesos climáticos extremos y sus respectivos impactos en todo el mundo (sequías, inundaciones y olas de calor intensas, así como enfermedades relacionadas transmitidas por vectores) los profesionales sanitarios deben comprender y hacer frente a las vulnerabilidades de sus sistemas de atención de salud, y emprender acciones que apunten a mejorar su resistencia de manera sostenible. Por lo general, el sector salud es uno de los mayores consumidores de energía de un país y una fuente significativa de emisión de gases de efecto invernadero. En la actualidad tiene la oportunidad de liderar las acciones de mitigación frente al cambio climático, y a la vez de reducir los costos de energía y agua, entre otros. En este informe especial se resumen varias iniciativas y se comparan tres recursos dirigidos a implementar medidas de sostenibilidad y resistencia para instalaciones de atención sanitaria: la Herramienta de Resistencia ante el Cambio Climático para Instalaciones de Atención Sanitaria (Canadá), la Herramienta de Resistencia ante el Cambio Climático para Instalaciones de Atención Sanitaria (Estados Unidos) y la Herramienta Hospitales Inteligentes de la Organización Panamericana de la Salud/ Organización Mundial de la Salud. Estas herramientas y las lecciones aprendidas a través de ellas proporcionan un punto de partida crucial para todos los sistemas de salud de la Región de las Américas.


Asunto(s)
Efectos del Clima , Cambio Climático , Desarrollo Sostenible , Preparación ante Desastres , Américas , Cambio Climático , Efectos del Clima , Planificación en Desastres , Instituciones de Salud , Desarrollo Sostenible , Instalaciones para Atención de Salud, Recursos Humanos y Servicios
19.
Br J Anaesth ; 116(5): 729, 2016 05.
Artículo en Inglés | MEDLINE | ID: mdl-27106992
20.
Plant Sci ; 245: 94-118, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26940495

RESUMEN

Land plants have adapted to survive under a range of wind climates and this involve changes in chemical composition, physical structure and morphology at all scales from the cell to the whole plant. Under strong winds plants can re-orientate themselves, reconfigure their canopies, or shed needles, leaves and branches in order to reduce the drag. If the wind is too strong the plants oscillate until the roots or stem fail. The mechanisms of root and stem failure are very similar in different plants although the exact details of the failure may be different. Cereals and other herbaceous crops can often recover after wind damage and even woody plants can partially recovery if there is sufficient access to water and nutrients. Wind damage can have major economic impacts on crops, forests and urban trees. This can be reduced by management that is sensitive to the local site and climatic conditions and accounts for the ability of plants to acclimate to their local wind climate. Wind is also a major disturbance in many plant ecosystems and can play a crucial role in plant regeneration and the change of successional stage.


Asunto(s)
Desarrollo de la Planta , Viento , Aclimatación/fisiología , Movimientos del Aire , Fenómenos Biomecánicos , Hojas de la Planta/fisiología
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