44,697 research outputs found

    How 5G wireless (and concomitant technologies) will revolutionize healthcare?

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    The need to have equitable access to quality healthcare is enshrined in the United Nations (UN) Sustainable Development Goals (SDGs), which defines the developmental agenda of the UN for the next 15 years. In particular, the third SDG focuses on the need to ā€œensure healthy lives and promote well-being for all at all agesā€. In this paper, we build the case that 5G wireless technology, along with concomitant emerging technologies (such as IoT, big data, artificial intelligence and machine learning), will transform global healthcare systems in the near future. Our optimism around 5G-enabled healthcare stems from a confluence of significant technical pushes that are already at play: apart from the availability of high-throughput low-latency wireless connectivity, other significant factors include the democratization of computing through cloud computing; the democratization of Artificial Intelligence (AI) and cognitive computing (e.g., IBM Watson); and the commoditization of data through crowdsourcing and digital exhaust. These technologies together can finally crack a dysfunctional healthcare system that has largely been impervious to technological innovations. We highlight the persistent deficiencies of the current healthcare system and then demonstrate how the 5G-enabled healthcare revolution can fix these deficiencies. We also highlight open technical research challenges, and potential pitfalls, that may hinder the development of such a 5G-enabled health revolution

    Challenges of measuring body temperatures of free-ranging birds and mammals

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    The thermal physiology of most birds and mammals is characterised by considerable spatial and temporal variation in body temperature. Body temperature is, therefore, a key parameter in physiological, behavioural and ecological research. Temperature measurements on freely moving or free-ranging animals in the wild are challenging but can be undertaken using a range of techniques. Internal temperature may be sampled using thermometry, surgically implanted loggers or transmitters, gastrointestinal or non-surgically placed devices. Less invasive approaches measure peripheral temperature with subcutaneous passive integrated transponder tags or skin surface-mounted radio transmitters and data loggers, or use infrared thermography to record surface temperature. Choice of technique is determined by focal research question and region of interest that reflects appropriate physiological or behavioural causal mechanisms of temperature change, as well as welfare and logistical considerations. Particularly required are further studies that provide opportunities of continuously sampling from multiple sites from within the body. This will increase our understanding of thermoregulation and temperature variation in different parts of the body and how these temperatures may change in response to physiological, behavioural and environmental parameters. Technological advances that continue to reduce the size and remote sensing capability of temperature recorders will greatly benefit field research

    Systematic review of the current status of cadaveric simulation for surgical training

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    Background: There is growing interest in and provision of cadaveric simulation courses for surgical trainees. This is being driven by the need to modernize and improve the efficiency of surgical training within the current challenging training climate. The objective of this systematic review is to describe and evaluate the evidence for cadaveric simulation in postgraduate surgical training. Methods: A PRISMAā€compliant systematic literature review of studies that prospectively evaluated a cadaveric simulation training intervention for surgical trainees was undertaken. All relevant databases and trial registries were searched to January 2019. Methodological rigour was assessed using the widely validated Medical Education Research Quality Index (MERSQI) tool. Results: A total of 51 studies were included, involving 2002 surgical trainees across 69 cadaveric training interventions. Of these, 22 assessed the impact of the cadaveric training intervention using only subjective measures, five measured impact by change in learner knowledge, and 23 used objective tools to assess change in learner behaviour after training. Only one study assessed patient outcome and demonstrated transfer of skill from the simulated environment to the workplace. Of the included studies, 67 per cent had weak methodology (MERSQI score less than 10Ā·7). Conclusion: There is an abundance of relatively lowā€quality evidence showing that cadaveric simulation induces shortā€term skill acquisition as measured by objective means. There is currently a lack of evidence of skill retention, and of transfer of skills following training into the live operating theatre

    Cataract Blindness: Socioeconomic Factors Associated with Treatment Barriers and High Blindness Rates for Women in Rural Regions of Andhra Pradesh

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    Despite efforts of Vision 2020 in India, the 2001 Andhra Pradesh Eye Disease Study (APEDS) extrapolated that approximately 18.7 million blind people resided in India and projected an increase to 31.6 million blind people by 2020. Within the Andhra Pradesh state itself, the preventable blindness population had increased from approximately 1,143,150 people in 1990 to 1,402,264 people in 2001, against reformation attempts by the National Program for Control of Blindness. Of this, cataracts were consistently the leading cause of avoidable blindness. Numerous public health studies have been conducted to outline factors that preclude treatment of avoidable cataract blindness in the India. Conclusively, the escalation of cataract blindness can be largely attributed to personal, social, and economic factors that inhibit utilization of available eye-care services. However, the degree and specificity of these respective barriers varies due to the heterogeneity among regions within Andhra Pradesh. Accordingly, no single approach can be implemented to effectively ameliorate eye health. Instead, population-based studies are required to understand individual regions and respective levels of need. Accordingly, this research is an examination of the female population in rural regions of Andhra Pradesh through the analysis of two major studies (1) the impact of private/non-governmental organizations (NGOs) on economic development and (2) socioeconomic factors engendering lack of utilization of eye-care services, in order to find a correlation between these two seemingly disparate studies. Overwhelmingly, the presence of private/non-governmental organizations (NGOs) increases the economic status of regions by increasing access to both education and employment opportunities. In comparison to developed, urban areas, NGOs presence in rural regions are significantly limited, leading to discrepancies in economic development and thereafter, lack of opportunity for economic and social growth for Cataract Blindness: Socioeconomic Factors Associated with Treatment Barriers and High Blindness Rates for Women in Rural Regions of Andhra Pradesh By Kiranpreet Kaur A U C T U S // VCUā€™s Journal of Undergraduate Research and Creativity // STEM// February 2018 2 females. Correspondingly, for years, higher incidences of cataract blindness have plagued the female population residing in underdeveloped rural areas of India, especially in comparison to female counterparts in urban areas. I found this to be significantly attributed to an intermittent and cyclic combination of socioeconomic limitations, specifically to lack of education/employment opportunities and cultural restrictions. This in turn, is linked to comparably diminished levels of private/NGO sector involvement. Only through understanding the correlation between these two aspects can intervention efforts be appropriately pursued to reduce cataract blindness rates in the female population. This work increases our understanding of the limitations that exist in accessing treatment options for females and furthermore, obtained results can potentially be extended to other regions of India to create and implement similar public policies

    Microvesicles and exosomes: new players in metabolic and cardiovascular disease

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    The past decade has witnessed an exponential increase in the number of publications referring to extracellular vesicles (EVs). For many years considered to be extracellular debris, EVs are now seen as novel mediators of endocrine signalling via cell-to-cell communication. With the capability of transferring proteins and nucleic acids from one cell to another, they have become an attractive focus of research for different pathological settings and are now regarded as both mediators and biomarkers of disease including cardio-metabolic disease. They also offer therapeutic potential as signalling agents capable of targeting tissues or cells with specific peptides or miRNAs. In this review, we focus on the role that microvesicles (MVs) and exosomes, the two most studied classes of EV, have in diabetes, cardiovascular disease, endothelial dysfunction, coagulopathies, and polycystic ovary syndrome. We also provide an overview of current developments in MV/exosome isolation techniques from plasma and other fluids, comparing different available commercial and non-commercial methods. We describe different techniques for their optical/biochemical characterization and quantitation. We also review the signalling pathways that exosomes and MVs activate in target cells and provide some insight into their use as biomarkers or potential therapeutic agents. In summary, we give an updated focus on the role that these exciting novel nanoparticles offer for the endocrine community
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