11 research outputs found
Development of a strontium optical lattice clock for the SOC mission on the ISS
Ultra-precise optical clocks in space will allow new studies in fundamental
physics and astronomy. Within an European Space Agency (ESA) program, the Space
Optical Clocks (SOC) project aims to install and to operate an optical lattice
clock on the International Space Station (ISS) towards the end of this decade.
It would be a natural follow-on to the ACES mission, improving its performance
by at least one order of magnitude. The payload is planned to include an
optical lattice clock, as well as a frequency comb, a microwave link, and an
optical link for comparisons of the ISS clock with ground clocks located in
several countries and continents. Within the EU-FP7-SPACE-2010-1 project no.
263500, during the years 2011-2015 a compact, modular and robust strontium
lattice optical clock demonstrator has been developed. Goal performance is a
fractional frequency instability below 1x10^{-15}, tau^{-1/2} and a fractional
inaccuracy below 5x10^{-17}. Here we describe the current status of the
apparatus' development, including the laser subsystems. Robust preparation of
cold {88}^Sr atoms in a second stage magneto-optical trap (MOT) is achieved.Comment: 27 Pages, 15 figures, Comptes Rendus Physique 201
Narrow linewidth visible/UV semiconductor disk lasers for quantum technologies
We present GaInP single frequency semiconductor disk lasers designed for emission in the visible range. Two different structures optimized for emission at 675 and 689 nm have been designed. Stabilisation of the frequency relatively to a reference cavity allows for very low noise levels, down to 5 kHz over a 1 s time scale in both cases. We show that these sources are suitable for laser cooling of Strontium atoms, and that we can transfer the high coherence to UV wavelengths
A Multisensory Multilevel Health Education Model for Diverse Communities
Owing to their enormous capacity to improve health and save lives, effective health promotion frameworks have been at the forefront of public health research and practice. A multilevel focus, as exemplified by the Socio-Ecological Model (SEM), is one common denominator among these frameworks. The SEM highlights important social and ecological influences on health behavior by delineating the different levels of influence. These include public policy, organizational, community, interpersonal, and intrapersonal levels, which, when considered during the development of health promotion campaigns, especially those that focus on health education, strengthen the potential influence of that campaign on targeted behaviors. However, the SEM lacks a complimenting framework for understanding the role of conventional and unconventional approaches to health education; that is, how to design a health education intervention that considers both the context, such as the social and ecological levels of influence, and the best approaches for developing and delivering the health education in a manner that optimizes their effectiveness in today’s modern and increasingly diverse world. Addressing this gap, the current article presents an integrative Multisensory Multilevel Health Education Model (MMHEM), which incorporates three key domains—(1) Art (innovativeness/creativity), (2) Culture (cultural tailoring), and (3) Science (evidence-based), while promoting the importance of considering the socio-ecological levels of influence on targeted behaviors. Using a successful health education intervention, called the Hip Hop Stroke, we deconstruct the Multisensory Multilevel Health Education Model and discuss its potential role as a guide for developing public health education interventions
An Exploration of Psychosocial Pathways of Parks’ Effects on Health: A Qualitative Study
Urban green space has been positively associated with psychological and physical health. However, the linkage between exposure to parks and health outcomes remains unclear. The current study examined the meanings that people assign to city parks, as a way to understand the pathways by which parks exert their effects on health. We conducted qualitative interviews with twenty culturally diverse residents in New York City. Thematic analysis was performed on the qualitative data. Results showed that all themes identified were related to parks fulfilling a basic human need for connection to (1) family, loved ones, and friends; (2) community and neighborhood; (3) self; and (4) nature. Based on these data, we proposed a human-centered framework for future research and interventions aimed at catalyzing parks as a vehicle to improve health and wellbeing. A human-centered approach emphasizes targeting the deep-seated needs and values of those we seek to engage and for whom health promotion and disease prevention efforts are designed. Our study shows that park transformations need to incorporate careful considerations of the human need for connection on multiple levels, so that park usage and its consequent health benefits may be optimized
It Starts with a Conversation: The Importance of Values as Building Blocks of Engagement Strategies in Community-Centered Public Health Research
This study examined the life-motivating values of residents in underserved minority communities to inform the development of community engagement strategies. Semi-structured interviews were conducted to explore the main research questions: (1) what were the values of research participants, and (2) what did they consider important in their lives? The participants included twenty-seven ethnically diverse individuals living in low-income neighborhoods in New York City (NYC). Thematic analysis was performed to identify common themes and patterns related to the values that participants considered important in their lives. Three broad themes were identified: (1) benevolence; (2) universalism, and (3) self-direction. Benevolence implies a sense of belonging as the central meaning in life; community engagement strategies focused on this value emphasize concern for the welfare of loved ones. Community engagement strategies focused on universalism emphasize social justice and concern for the environment and the world. Finally, community engagement strategies focused on self-direction seek to satisfy participants’ needs for control, autonomy, and mastery. This study introduces the Value-Based Framework for Community-Centered Research. It illustrates how value exploration is central to a community-centered approach to public health research and can be an important first step for designing studies that are better aligned with community needs and contexts. Such an approach can also help to co-create a “research identity” with community members and integrate their values into a project’s purpose, thereby increasing community ownership and engagement in the study
The Influence of Ethnic and Mainstream Cultures on African Americans’ Health Behaviors: A Qualitative Study
Background: Culture plays an important role in shaping individuals’ health behaviors. This qualitative research examines the relationship between African Americans’ ethnic and mainstream cultures and their health behaviors (i.e., food intake and physical activity). Methods: This study used in-depth semi-structured interview format with a group of 25 African Americans to examine the influence of ethnic and mainstream culture on African Americans’ food intake and physical activity. Thematic analysis was used to identify common themes and patterns related to African Americans’ health behaviors as well as to report these patterns within data. Results: The present study found that African Americans position both their ethnic and mainstream culture as important influences on their health behaviors pertaining to food intake and physical activity. Most participants reported taking advantage of “the best of both worlds” by engaging in picking and choosing healthy behaviors from both cultures to which they belong, and they perceived preparing healthy makeovers as a way to optimize their health. They also identified a range of practical considerations that can facilitate or hinder engagement in healthy eating and physical activity (e.g., affordability, social support). Participants discussed a number of other positive (e.g., resilience, spirituality) and negative (e.g., experience of discrimination) influences on health behaviors. Conclusions: African Americans consider both their ethnic and mainstream cultures important in shaping their health behaviors. These cultural influences need to be understood in the context of other psycho-socio-environmental factors that affect individuals’ health behaviors. The current study has practical implications for designing health promotion programs for African Americans
A Community-Driven Nature-Based Design Framework for the Regeneration of Neglected Urban Public Spaces
Nature-based solutions are a popularising concept within current urban regeneration literature, exploring differing themes in the context of optimising public spaces. Focus on the adaptation of public space design, with the community at the forefront, has been documented to a limited degree, with few studies concentrating on possible design strategies.
This literature review revealed that the majority of nature-based design frameworks, since 2017, have suggested the benefits of nature in public spaces to human health and well-being: whether physically or psychologically, and either within the full framework or as part of the framework’s scope. There are however variations in the number and clarity of steps needed to follow each framework, and it is evident that the importance of community driven designs is understated within built environment literature. Many frameworks favoured the use of academic studies as a secondary source for their creation, with few using primary analysis of community acceptance and co-creation.
This paper explores the literature available on nature-based solutions and their design frameworks. It maps out the existing studies, to date, and reports on the initial findings for this progressing PhD research. Public spaces are, in their very definition, a space for the public; despite this, development of these spaces, as well as the literature around the subject, is far more theoretical and professionally inclined, rather than community influenced. With an emphasis on sustainable development, this paper suggests that community views on nature-based public spaces need to be the focal point of design frameworks for public urban spaces, which may then be used as a protocol for the production of optimal and effective nature-based public space regeneration
Should pathological gambling and obesity be considered addictive disorders? A factor analytic study in a nationally representative sample
Reperfusion therapies and in-hospital outcomes for ST-elevation myocardial infarction in Europe: The ACVC-EAPCI EORP STEMI Registry of the European Society of Cardiology
Aims: The aim of this study was to determine the contemporary use of reperfusion therapy in the European Society of Cardiology (ESC) member and affiliated countries and adherence to ESC clinical practice guidelines in patients with ST-elevation myocardial infarction (STEMI). Methods and results: Prospective cohort (EURObservational Research Programme STEMI Registry) of hospitalized STEMI patients with symptom onset <24 h in 196 centres across 29 countries. A total of 11 462 patients were enrolled, for whom primary percutaneous coronary intervention (PCI) (total cohort frequency: 72.2%, country frequency range 0-100%), fibrinolysis (18.8%; 0-100%), and no reperfusion therapy (9.0%; 0-75%) were performed. Corresponding in-hospital mortality rates from any cause were 3.1%, 4.4%, and 14.1% and overall mortality was 4.4% (country range 2.5-5.9%). Achievement of quality indicators for reperfusion was reported for 92.7% (region range 84.8-97.5%) for the performance of reperfusion therapy of all patients with STEMI <12 h and 54.4% (region range 37.1-70.1%) for timely reperfusion. Conclusions: The use of reperfusion therapy for STEMI in the ESC member and affiliated countries was high. Primary PCI was the most frequently used treatment and associated total in-hospital mortality was below 5%. However, there was geographic variation in the use of primary PCI, which was associated with differences in in-hospital mortality
The ESC ACCA EAPCI EORP acute coronary syndrome ST-elevation myocardial infarction registry
Aims: The Acute Cardiac Care Association (ACCA)-European Association of Percutaneous Coronary Intervention (EAPCI) Registry on ST-elevation myocardial infarction (STEMI) of the EurObservational programme (EORP) of the European Society of Cardiology (ESC) registry aimed to determine the current state of the use of reperfusion therapy in ESC member and ESC affiliated countries and the adherence to ESC STEMI guidelines in patients with STEMI. Methods and results: Between 1 January 2015 and 31 March 2018, a total of 11 462 patients admitted with an initial diagnosis of STEMI according to the 2012 ESC STEMI guidelines were enrolled. Individual patient data were collected across 196 centres and 29 countries. Among the centres, there were 136 percutaneous coronary intervention centres and 91 with cardiac surgery on-site. The majority of centres (129/196) were part of a STEMI network. The main objective of this study was to describe the demographic, clinical, and angiographic characteristics of patients with STEMI. Other objectives include to assess management patterns and in particular the current use of reperfusion therapies and to evaluate how recommendations of most recent STEMI European guidelines regarding reperfusion therapies and adjunctive pharmacological and non-pharmacological treatments are adopted in clinical practice and how their application can impact on patients' outcomes. Patients will be followed for 1 year after admission. Conclusion: The ESC ACCA-EAPCI EORP ACS STEMI registry is an international registry of care and outcomes of patients hospitalized with STEMI. It will provide insights into the contemporary patient profile, management patterns, and 1-year outcome of patients with STEMI