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1.
J Public Health Manag Pract ; 29(2): E37-E43, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36715601

RESUMEN

West Virginia has struggled with an overdose epidemic for many years and continues to have the highest overdose death rate in the nation. However, through successful collaboration between the West Virginia Board of Pharmacy and the West Virginia Department of Health via its Violence and Injury Prevention Program, West Virginia has improved data quality, enhanced program development and implementation, and developed strategies to address the overdose epidemic. This multiagency collaboration plays an important role in addressing the overdose epidemic and promotes lasting interagency relationships. One strategy is overcoming barriers to maximizing and utilizing the Prescription Drug Monitoring Program, or PDMP. This strategy allows for a better understanding of a patient's prescription history and ensures safer prescribing practices. In addition, this strategic partnership facilitates the use of PDMP data for epidemiologic studies and public health surveillance, which results in sustainable analyses and dissemination of actionable data that are now driving public health action in West Virginia.


Asunto(s)
Sobredosis de Droga , Programas de Monitoreo de Medicamentos Recetados , Humanos , Toma de Decisiones Clínicas , Sobredosis de Droga/epidemiología , Sobredosis de Droga/prevención & control , Vigilancia en Salud Pública , West Virginia/epidemiología
2.
BMC Med Educ ; 21(1): 280, 2021 May 17.
Artículo en Inglés | MEDLINE | ID: mdl-34001085

RESUMEN

BACKGROUND: Poor-quality diet is associated with one in five deaths globally. In the United States, it is the leading cause of death, representing a bigger risk factor than even smoking. For many, education on a healthy diet comes from their physician. However, as few as 25% of medical schools currently offer a dedicated nutrition course. We hypothesized that an active learning, culinary nutrition experience for medical students would improve the quality of their diets and better equip them to counsel future patients on food and nutrition. METHODS: This was a prospective, interventional, uncontrolled, non-randomized, pilot study. Ten first-year medical students at the Wayne State University School of Medicine completed a 4-part, 8-h course in culinary-nutritional instruction and hands-on cooking. Online assessment surveys were completed immediately prior to, immediately following, and 2 months after the intervention. There was a 100% retention rate and 98.8% item-completion rate on the questionnaires. The primary outcome was changes in attitudes regarding counselling patients on a healthy diet. Secondary outcomes included changes in dietary habits and acquisition of culinary knowledge. Average within-person change between timepoints was determined using ordinary least squares fixed-effect models. Statistical significance was defined as P ≤ .05. RESULTS: Participants felt better prepared to counsel patients on a healthy diet immediately post-intervention (coefficient = 2.8; 95% confidence interval: 1.6 to 4.0 points; P < .001) and 2 months later (2.2 [1.0, 3.4]; P = .002). Scores on the objective test of culinary knowledge increased immediately after (3.6 [2.4, 4.9]; P < .001) and 2 months after (1.6 [0.4, 2.9]; P = .01) the intervention. Two months post-intervention, participants reported that a higher percentage of their meals were homemade compared to pre-intervention (13.7 [2.1, 25.3]; P = .02). CONCLUSIONS: An experiential culinary nutrition course may improve medical students' readiness to provide dietary counselling. Further research will be necessary to determine what effects such interventions may have on the quality of participants' own diets.


Asunto(s)
Ciencias de la Nutrición , Médicos , Curriculum , Dieta , Dieta Saludable , Humanos , Proyectos Piloto , Estudios Prospectivos
3.
J Gen Intern Med ; 34(3): 464-466, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30535751

RESUMEN

"Code-switching"-the mixing of languages, dialects, tones, or lexicons within a single conversation-is a prevalent linguistic phenomenon that has been described thoroughly in the social science literature. However, it is relatively unknown to the medical community despite its clear implications for clinicians as they navigate their role in the physician-patient relationship. As multilingualism and other forms of mixed speech become increasingly common in the urban and globally minded populations of America's modern cities, physicians must be cognizant of how they use their language skills-such as code-switching-to communicate with their patients in an ethical, supportive, and non-offensive manner. Multidisciplinary literature, case studies, and thought experiments on the subject provide an actionable framework by which health professionals can work toward achieving this goal of cultural competence.


Asunto(s)
Comunicación , Competencia Cultural/psicología , Lenguaje , Relaciones Médico-Paciente , Factores Raciales , Factores de Edad , Humanos
4.
Proc Natl Acad Sci U S A ; 112(17): 5354-9, 2015 Apr 28.
Artículo en Inglés | MEDLINE | ID: mdl-25870283

RESUMEN

Many coastal communities throughout the world are threatened by local (or near-field) tsunamis that could inundate low-lying areas in a matter of minutes after generation. Although the hazard and sustainability literature often frames vulnerability conceptually as a multidimensional issue involving exposure, sensitivity, and resilience to a hazard, assessments often focus on one element or do not recognize the hazard context. We introduce an analytical framework for describing variations in population vulnerability to tsunami hazards that integrates (i) geospatial approaches to identify the number and characteristics of people in hazard zones, (ii) anisotropic path distance models to estimate evacuation travel times to safety, and (iii) cluster analysis to classify communities with similar vulnerability. We demonstrate this approach by classifying 49 incorporated cities, 7 tribal reservations, and 17 counties from northern California to northern Washington that are directly threatened by tsunami waves associated with a Cascadia subduction zone earthquake. Results suggest three primary community groups: (i) relatively low numbers of exposed populations with varied demographic sensitivities, (ii) high numbers of exposed populations but sufficient time to evacuate before wave arrival, and (iii) moderate numbers of exposed populations but insufficient time to evacuate. Results can be used to enhance general hazard-awareness efforts with targeted interventions, such as education and outreach tailored to local demographics, evacuation training, and/or vertical evacuation refuges.

5.
Disasters ; 40(4): 779-98, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26728799

RESUMEN

Tsunamis represent significant threats to human life and development in coastal communities. This quantitative study examines the influence of household characteristics on evacuation actions taken by 211 respondents in American Samoa who were at their homes during the 29 September 2009 Mw 8.1 Samoa Islands earthquake and tsunami disaster. Multiple logistic regression analysis of survey data was used to examine the association between evacuation and various household factors. Findings show that increases in distance to shoreline were associated with a slightly decreased likelihood of evacuation, whereas households reporting higher income had an increased probability of evacuation. The response in American Samoa was an effective one, with only 34 fatalities in a tsunami that reached shore in as little as 15 minutes. Consequently, future research should implement more qualitative study designs to identify event and cultural specific determinants of household evacuation behaviour to local tsunamis.


Asunto(s)
Toma de Decisiones , Planificación en Desastres/métodos , Terremotos , Tsunamis , Adulto , Anciano , Samoa Americana/epidemiología , Planificación en Desastres/organización & administración , Desastres , Composición Familiar , Femenino , Humanos , Entrevistas como Asunto , Modelos Logísticos , Masculino , Persona de Mediana Edad , Mortalidad , Gestión de Riesgos , Tsunamis/estadística & datos numéricos
7.
Fam Process ; 53(4): 596-607, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25146102

RESUMEN

The desire to understand relationships is a passion shared by professionals in research, clinical, and educational settings. Questionnaires are frequently used in each of these settings for a multitude of purposes-such as screening, assessment, program evaluation, or establishing therapeutic effectiveness. However, clinical issues arise when a couple's answers on questionnaires do not match clinical judgment or lack clinical utility, while statistical problems arise when data from both partners are put into analyses. This article introduces the use of geospatial statistics to analyze couple data plotted on a two-dimensional "relational map." Relationship maps can increase assessment sensitivity, track treatment progress, and remove statistical issues typically associated with couple data. This article briefly introduces core assumptions of spatial models, illustrates the use of spatial models in creating a relational landscape of divorce, offers suggestions for the use of relational maps in a clinical setting, and explores future research ideas.


Asunto(s)
Divorcio/estadística & datos numéricos , Mapeo Geográfico , Terapia Conyugal , Encuestas y Cuestionarios , Humanos , Relaciones Interpersonales , Matrimonio/estadística & datos numéricos , Método de Montecarlo , Proyectos de Investigación , Sensibilidad y Especificidad , Distribuciones Estadísticas
8.
J Med Educ Curric Dev ; 11: 23821205241249379, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38711830

RESUMEN

In the past decade, medical education has increasingly incorporated evidence-based lifestyle interventions as primary strategies for preventing and managing noncommunicable diseases. This shift embraces the growing recognition of the significant impact of lifestyle on health outcomes, driving diseases including obesity, diabetes, heart disease, and cancer. Now deemed "food is medicine" (FIM), diet-related interventions witnessed integration into healthcare systems and recognition in the United States' White House Conference on Hunger, Nutrition, and Health in 2023. As FIM gains traction, investigating optimal strategies for team-based education becomes essential. Healthcare teams need the necessary knowledge and tools to effectively administer FIM services and collaborate across disciplines, ultimately enhancing disease prevention, chronic disease management, health quality, value, and overall wellness. Culinary medicine (CM), a vital component of FIM, bridges nutrition education, pragmatic culinary skills, and conventional strategies to improve chronic disease management. CM involves experiential learning, imparts practical skills, and encourages behavior change by addressing food-related determinants of health and promoting equitable access. Teaching kitchens serve as physical or virtual learning spaces and as a didactic and experiential method (skills lab), playing a crucial role by integrating culinary, lifestyle, integrative, and conventional medicine. A growing number of medical schools in the United States and globally offer CM education via diverse methods including interest groups, electives, and specialty tracks, encompassing didactic sessions, hands-on kitchen education, and virtual teaching methods. Given the rising demand for CM programs, this article aims to describe, map, and compare existing CM education types in medical education. It provides actionable recommendations for medical schools to establish and expand CM programs by fostering service-learning partnerships, clinical innovation, and interdisciplinary research. As FIM gains prominence, cultivating a robust foundation of educational strategies is vital to ensure seamless integration into both medical education and collaborative medical practice.

9.
Psychol Methods ; 28(3): 631-650, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-34291997

RESUMEN

Social scientists have become increasingly interested in using intensive longitudinal methods to study social phenomena that change over time. Many of these phenomena are expected to exhibit cycling fluctuations (e.g., sleep, mood, sexual desire). However, researchers typically employ analytical methods which are unable to model such patterns. We present spectral and cross-spectral analysis as means to address this limitation. Spectral analysis provides a means to interrogate time series from a different, frequency domain perspective, and to understand how the time series may be decomposed into their constituent periodic components. Cross-spectral extends this to dyadic data and allows for synchrony and time offsets to be identified. The techniques are commonly used in the physical and engineering sciences, and we discuss how to apply these popular analytical techniques to the social sciences while also demonstrating how to undertake estimations of significance and effect size. In this tutorial we begin by introducing spectral and cross-spectral analysis, before demonstrating its application to simulated univariate and bivariate individual- and group-level data. We employ cross-power spectral density techniques to understand synchrony between the individual time series in a dyadic time series, and circular statistics and polar plots to understand phase offsets between constituent periodic components. Finally, we present a means to undertake nonparameteric bootstrapping in order to estimate the significance, and derive a proxy for effect size. A Jupyter Notebook (Python 3.6) is provided as supplementary material to aid researchers who intend to apply these techniques. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Asunto(s)
Ciencias Sociales , Humanos , Factores de Tiempo
10.
J Marital Fam Ther ; 49(1): 186-204, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36177671

RESUMEN

The philosophical framework of strong relationality has gained greater attention in scholarship and yet empirically testing models built on this important framework are rare. The present study tests predictions made by the Strong Relationality Model of Relationship Flourishing (SRM), which centers on the role of Ethical Responsiveness for relationship health. In doing so, we introduce common fate modeling as a methodological approach for strong relationality research. We used longitudinal data from 1512 couples collected as part of the German longitudinal panel study of families. Results support the Strong Relationality Model's prediction that Ethical Responsiveness (as measured by perceived partner support) positively alters the impact of stress on Gratitude-Recognition (elements of the Responsible Action domain of the SRM), which then increases couples' intimacy (an element of the Relational-Connectivity domain of the SRM). Recommendations for clinical assessment and intervention are given as well as recommendations for future research on the Strong Relationality Model.


Asunto(s)
Relaciones Interpersonales , Conducta Sexual , Humanos , Parejas Sexuales , Estudios Longitudinales
11.
J Healthc Leadersh ; 15: 129-137, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37520178

RESUMEN

Since the middle of the 20th century, the American food environment has become increasingly ultra-processed. As a result, the prevalence of chronic, diet-related disease in the United States has skyrocketed. Meanwhile, physicians are still poorly trained in nutrition. A recent innovation that aims to address this is "culinary medicine" programming taught by teams of physicians, chefs, and registered dietitian nutritionists. Culinary medicine is an evidence-based, interprofessional field of medicine that combines culinary arts, nutrition science, and medical education to prevent and treat diet-related disease. It employs hands-on learning through healthy cooking and is typically taught in a teaching kitchen, either in-person or virtually. It can be dosed either as a patient care intervention or as experiential nutrition education for students, medical trainees, and healthcare professionals. Culinary medicine programs are effective, financially feasible, and well-received. As a result, healthcare systems and medical education programs are increasingly incorporating culinary medicine, teaching kitchens, and interprofessional nutrition education into their patient care and training models.

12.
Nutrients ; 15(19)2023 Sep 27.
Artículo en Inglés | MEDLINE | ID: mdl-37836450

RESUMEN

While nutritional interventions are first-line therapy for many chronic diseases, most medical trainees receive minimal nutrition education, leaving them unprepared to address nutritional issues with patients. An interactive, single-session, virtual nutrition curriculum was taught online to 80 physician assistant (PA) students. Topics included plant-based nutrition, dietary history-taking and counseling, and culinary medicine. Students were surveyed before, immediately after, and four weeks after the curriculum to assess changes to nutrition-related knowledge, attitudes, confidence, and personal dietary behaviors. Seventy-three PA students (91%) completed the pre-survey, 76 (95%) completed the post-survey, and 42 (52.5%) completed the delayed post-survey. Knowledge scores increased immediately post-intervention (48.9% to 78.9%; p < 0.001) and persisted four weeks later (78.9% to 75.8%; p = 0.54). Post-intervention, students felt more confident in dietary history-taking (55% vs. 95%; p = 0.001) and nutrition counseling (53% vs. 84%; p = 0.003) and agreed that dietary changes alone could reverse type 2 diabetes (74% vs. 97%; p = 0.027) and coronary artery disease (66% vs. 92%; p = 0.039). Curricula using virtual teaching kitchens may be a scalable approach to nutrition education for medical trainees.


Asunto(s)
Diabetes Mellitus Tipo 2 , Estudiantes de Medicina , Humanos , Estudiantes de Medicina/psicología , Educación en Salud , Dieta , Consejo , Curriculum
13.
Cell Rep Med ; 4(6): 101034, 2023 06 20.
Artículo en Inglés | MEDLINE | ID: mdl-37279751

RESUMEN

Differential host responses in coronavirus disease 2019 (COVID-19) and multisystem inflammatory syndrome in children (MIS-C) remain poorly characterized. Here, we use next-generation sequencing to longitudinally analyze blood samples from pediatric patients with COVID-19 or MIS-C across three hospitals. Profiling of plasma cell-free nucleic acids uncovers distinct signatures of cell injury and death between COVID-19 and MIS-C, with increased multiorgan involvement in MIS-C encompassing diverse cell types, including endothelial and neuronal cells, and an enrichment of pyroptosis-related genes. Whole-blood RNA profiling reveals upregulation of similar pro-inflammatory pathways in COVID-19 and MIS-C but also MIS-C-specific downregulation of T cell-associated pathways. Profiling of plasma cell-free RNA and whole-blood RNA in paired samples yields different but complementary signatures for each disease state. Our work provides a systems-level view of immune responses and tissue damage in COVID-19 and MIS-C and informs future development of new disease biomarkers.


Asunto(s)
COVID-19 , Ácidos Nucleicos Libres de Células , Ácidos Nucleicos , Humanos , Niño , COVID-19/genética , ARN , Biomarcadores
14.
Materials (Basel) ; 15(23)2022 Dec 05.
Artículo en Inglés | MEDLINE | ID: mdl-36500167

RESUMEN

This review focusses on the development of thermoelectric composites made of oxide or conventional inorganic materials, and polymers, with specific emphasis on those containing oxides. Discussion of the current state-of-the-art thermoelectric materials, including the individual constituent materials, i.e., conventional materials, oxides and polymers, is firstly presented to provide the reader with a comparison of the top-performing thermoelectric materials. Then, individual materials used in the inorganic/polymer composites are discussed to provide a comparison of the performance of the composites themselves. Finally, the addition of carbon-based compounds is discussed as a route to improving the thermoelectric performance. For each topic discussed, key thermoelectric properties are tabulated and comparative figures are presented for a wide array of materials.

15.
J Subst Abuse Treat ; 136: 108687, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-34903397

RESUMEN

INTRODUCTION: This study evaluates if social distancing measures instituted during the novel coronavirus SARS-CoV-2 (COVID-19) pandemic were associated with a reduction in Medication for Opioid Use Disorder (MOUD) prescribing in West Virginia. The COVID-19 pandemic necessitated the quick implementation of public health interventions such as social distancing. This led to the use of telemedicine in the clinical setting however implementing telemedicine involves system level and infrastructure level changes within a healthcare environment. This could cause a barrier to MOUD delivery as it is often provided concomitantly with other face to face substance use and mental health services. The purpose of this study is to determine whether social distancing was associated with a reduction in MOUD prescribing in West Virginia, with the goal of adding to the knowledge of how COVID-19 and COVID-19-related mitigation strategies have impacted patients with OUD. METHODS: Prescription monitoring data were requested from the West Virginia Board of Pharmacy. We applied interrupted time series modeling to investigate MOUD prescribing practices before and after social distancing took effect. Gabapentin prescriptions were utilized as a control for comparison. RESULTS: Our study assessed state-wide buprenorphine and Suboxone prescriptions as compared to a control medication and found an increase in dosage of both medications and an increase in number of buprenorphine prescriptions, but a small decrease in buprenorphine/naloxone prescription number related to the dates of implementation of social distancing. Taken together, overall this indicates an increase in prescription number of MOUD prescriptions as well as an increase in dosage. CONCLUSION: This study suggests that social distancing measures were associated with an increase in both the number of MOUD prescriptions and the number of doses in each prescription. Significant alterations to MOUD delivery in the clinical setting were implemented in a short timeframe with the COVID-19 pandemic. Understanding the implementation of clinical measures to accommodate social distancing measures may provide benefit to transformation of future delivery of MOUD.


Asunto(s)
Buprenorfina , COVID-19 , Trastornos Relacionados con Opioides , Buprenorfina/uso terapéutico , Humanos , Tratamiento de Sustitución de Opiáceos , Trastornos Relacionados con Opioides/tratamiento farmacológico , Trastornos Relacionados con Opioides/epidemiología , Pandemias , Distanciamiento Físico , SARS-CoV-2 , West Virginia
16.
Surg Endosc ; 25(1): 119-23, 2011 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-20549244

RESUMEN

This study demonstrates the feasibility of using a miniature robot to perform complex, single-incision, minimal access surgery. Instrument positioning and lack of triangulation complicate single-incision laparoscopic surgery, and open surgical procedures are highly invasive. Using minimally invasive techniques with miniature robotic platforms potentially offers significant clinical benefits. A miniature robot platform has been designed to perform advanced laparoscopic surgery with speed, dexterity, and tissue-handling capabilities comparable to standard laparoscopic instruments working through trocars. The robotic platform includes a dexterous in vivo robot and a remote surgeon interface console. For this study, a standard laparoscope was mounted to the robot to provide vision and lighting capabilities. In addition, multiple robots could be inserted through a single incision rather than the traditional use of four or five different ports. These additional robots could provide capabilities such as tissue retraction and supplementary visualization or lighting. The efficacy of this robot has been demonstrated in a nonsurvival cholecystectomy in a porcine model. The procedure was performed through a single large transabdominal incision, with supplementary retraction being provided by standard laparoscopic tools. This study demonstrates the feasibility of using a dexterous robot platform for performing single-incision, advanced laparoscopic surgery.


Asunto(s)
Laparoscopía/métodos , Robótica/instrumentación , Animales , Colecistectomía Laparoscópica/instrumentación , Colecistectomía Laparoscópica/métodos , Diseño de Equipo , Estudios de Factibilidad , Miniaturización , Sus scrofa , Porcinos , Interfaz Usuario-Computador
17.
Subst Abuse Treat Prev Policy ; 16(1): 14, 2021 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-33526045

RESUMEN

BACKGROUND: The Opioid Reduction Act (SB 273) took effect in West Virginia in June 2018. This legislation limited ongoing chronic opioid prescriptions to 30 days' supply, and first-time opioid prescriptions to 7 days' supply for surgeons and 3 days' for emergency rooms and dentists. The purpose of this study was to determine the effect of this legislation on reducing opioid prescriptions in West Virginia, with the goal of informing future similar policy efforts. METHODS: Data were requested from the state Prescription Drug Monitoring Program (PDMP) including overall number of opioid prescriptions, number of first-time opioid prescriptions, average daily morphine milligram equivalents (MME) and prescription duration (expressed as "days' supply") given to adults during the 64 week time periods before and after legislation enactment. Statistical analysis was done utilizing an autoregressive integrated moving average (ARIMA) interrupted time series analysis to assess impact of both legislation announcement and enactment while controlling secular trends and considering autocorrelation trends. Benzodiazepine prescriptions were utilized as a control. RESULTS: Our analysis demonstrates a significant decrease in overall state opioid prescribing as well as a small change in average daily MME associated with the date of the legislation's enactment when considering serial correlation in the time series and accounting for pre-intervention trends. There was no such association found with benzodiazepine prescriptions. CONCLUSION: Results of the current study suggest that SB 273 was associated with an average 22.1% decrease of overall opioid prescriptions and a small change in average daily MME relative to the date of legislative implementation in West Virginia. There was, however, no association of the legislation on first-time opioid prescriptions or days' supply of opioid medication, and all variables were trending downward prior to implementation of SB 273. The control demonstrated no relationship to the law.


Asunto(s)
Analgésicos Opioides , Programas de Monitoreo de Medicamentos Recetados , Adulto , Servicio de Urgencia en Hospital , Humanos , Pautas de la Práctica en Medicina , West Virginia
18.
J Public Health Policy ; 42(2): 249-257, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33580195

RESUMEN

No study has examined Prescription Drug Monitoring Program (PDMP) data for West Virginia or among specialty practices, such as veterinary medicine. The objectives of this study were to conduct time series modeling to describe the PDMP policy reform impact on prescribing rates for human and veterinary providers. We obtained data from the WV PDMP for 2008 through 2020 for the number of opioid prescriptions filled and providers. We estimated prescribing rates for human and veterinary providers separately based upon the top five opioids prescribed by veterinarians. We estimated temporal effects using a Bayesian log-normal time series model for humans and veterinarians separately. Throughout the study period prescribing rates increased significantly for veterinarians, and decreased for human providers, particularly during 2018 after implementation of the Opioid Reduction Act. Findings provide novel insight into the differential impact of policy on specialty practices and highlight decreasing human opioid prescribing observed elsewhere.


Asunto(s)
Mal Uso de Medicamentos de Venta con Receta , Programas de Monitoreo de Medicamentos Recetados , Analgésicos Opioides/uso terapéutico , Teorema de Bayes , Humanos , Políticas , Pautas de la Práctica en Medicina , West Virginia
19.
Sci Rep ; 11(1): 15560, 2021 07 30.
Artículo en Inglés | MEDLINE | ID: mdl-34330962

RESUMEN

As the climate evolves over the next century, the interaction of accelerating sea level rise (SLR) and storms, combined with confining development and infrastructure, will place greater stresses on physical, ecological, and human systems along the ocean-land margin. Many of these valued coastal systems could reach "tipping points," at which hazard exposure substantially increases and threatens the present-day form, function, and viability of communities, infrastructure, and ecosystems. Determining the timing and nature of these tipping points is essential for effective climate adaptation planning. Here we present a multidisciplinary case study from Santa Barbara, California (USA), to identify potential climate change-related tipping points for various coastal systems. This study integrates numerical and statistical models of the climate, ocean water levels, beach and cliff evolution, and two soft sediment ecosystems, sandy beaches and tidal wetlands. We find that tipping points for beaches and wetlands could be reached with just 0.25 m or less of SLR (~ 2050), with > 50% subsequent habitat loss that would degrade overall biodiversity and ecosystem function. In contrast, the largest projected changes in socioeconomic exposure to flooding for five communities in this region are not anticipated until SLR exceeds 0.75 m for daily flooding and 1.5 m for storm-driven flooding (~ 2100 or later). These changes are less acute relative to community totals and do not qualify as tipping points given the adaptive capacity of communities. Nonetheless, the natural and human built systems are interconnected such that the loss of natural system function could negatively impact the quality of life of residents and disrupt the local economy, resulting in indirect socioeconomic impacts long before built infrastructure is directly impacted by flooding.

20.
Surg Endosc ; 23(2): 260-6, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19057960

RESUMEN

BACKGROUND: Natural orifice translumenal endoscopic surgery (NOTES) is surgically challenging. Current endoscopic tools provide an insufficient platform for visualization and manipulation of the surgical target. This study demonstrates the feasibility of using a miniature in vivo robot to enhance visualization and provide off-axis dexterous manipulation capabilities for NOTES. METHODS: The authors developed a dexterous, miniature robot with six degrees of freedom capable of applying significant force throughout its workspace. The robot, introduced through the esophagus, completely enters the peritoneal cavity through a transgastric insertion. The robot design consists of a central "body" and two "arms" fitted respectively with cautery and forceps end-effectors. The arms of the robot unfold, allowing the robot to flex freely for entry through the esophagus. Once in the peritoneal cavity, the arms refold, and the robot is attached to the abdominal wall using the interaction of magnets housed in the robot body with magnets in an external magnetic handle. Video feedback from the on-board cameras is provided to the surgeon throughout a procedure. RESULTS: The efficacy of this robot was demonstrated in three nonsurvivable procedures in a porcine model, namely, abdominal exploration, bowel manipulation, and cholecystectomy. After insertion, the robot was attached to the interior abdominal wall. The robot was repositioned throughout the procedure to provide optimal orientations for visualization and tissue manipulation. The surgeon remotely controlled the actuation of the robot using an external console to assist in the procedures. CONCLUSION: This study has shown that a dexterous miniature in vivo robot can apply significant forces in arbitrary directions and improve visualization to overcome many of the limitations of current endoscopic tools for performing NOTES procedures.


Asunto(s)
Colecistectomía Laparoscópica/instrumentación , Robótica , Cirugía Asistida por Video , Animales , Colecistectomía Laparoscópica/métodos , Disección , Diseño de Equipo , Estudios de Factibilidad , Miniaturización , Modelos Animales , Porcinos
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