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Structural health monitoring

Deborah Baron, Thandekile Essien, Sinazo Pato, Miliswa Magongo, Nomthandazo Mbandazayo, Fiona Scorgie, Helen Rees, Sinead Delany-Moretlwe
INTRODUCTION: The Good Participatory Practice (GPP): Guidelines for Biomedical HIV Prevention Trials, second edition (2011) were developed to provide clinical trial sponsors and implementers with a formal stakeholder engagement framework. As one of the largest African research institutes, Wits Reproductive Health and HIV Institute (Wits RHI) became an early adopter of GPP by implementing its principles within large-scale national and regional clinical trials. This article examines Wits RHI's lessons learned from implementing GPP, its ongoing efforts to institutionalize GPP, and the yet to be realized potential in creating fully sustainable structures for meaningful stakeholder engagement in HIV prevention research, implementation science and beyond...
October 2018: Journal of the International AIDS Society
Mohammed E Sayed, Markus P Nemitz, Simona Aracri, Alistair C McConnell, Ross M McKenzie, Adam A Stokes
The oil and gas industry faces increasing pressure to remove people from dangerous offshore environments. Robots present a cost-effective and safe method for inspection, repair, and maintenance of topside and marine offshore infrastructure. In this work, we introduce a new multi-sensing platform, the Limpet, which is designed to be low-cost and highly manufacturable, and thus can be deployed in huge collectives for monitoring offshore platforms. The Limpet can be considered an instrument, where in abstract terms, an instrument is a device that transforms a physical variable of interest (measurand) into a form that is suitable for recording (measurement)...
October 16, 2018: Sensors
Daniel Marques Mota, Álvaro Vigo, Ricardo de Souza Kuchenbecker
This scoping review aims to describe and characterize the Brazilian pharmacovigilance system Brazil (SINAF) and verify to what extent it meets the minimum requirements proposed by the World Health Organization for the functional performance of this type of national system. The literature search strategy used STARLITE recommendations and search terms in MEDLINE/PubMed, Google, the Brazilian National Press, and the website of the Brazilian Health Regulatory Agency (Anvisa), from 1999, when Anvisa was created, to March 2016...
October 11, 2018: Cadernos de Saúde Pública
Hailing Feng, Bozhi Shi, Xiaoying Cao, Xinyi Hong, Xiaolian Duan, Daidi Zhong
BACKGROUND: Heart sound monitor (HSM), a device suitable for home-use, can be used to acquire heart sounds. It enables the telemonitoring of cardiac function, which has been largely evolved and widely used in recent years. Nevertheless, the designers paid little attention to the consistency of information model and data interaction of HSM, thus the data could not be shared and aggregated among healthcare systems. Consequently, the device's development and its application in person-centered telehealth are hindered...
October 17, 2018: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
Xinxing Chen, Chih-Chen Chang, Jiannan Xiang, Chaobo Zhang, Ming Liu
High-accuracy crack growth measurement is crucial for the health assessment of concrete structures. In this work, an optical crack growth sensor using the digital sampling moiré (DSM) method is developed for two-dimensional (2D) crack growth monitoring. The DSM method generates moiré fringes from a single image through digital image processing, and it measures 2D displacements using the phase difference of moiré fringes between motion. Compared with the previous sensors using traditional photogrammetric algorithms such as the normalized cross-correlation (NCC) method, this new DSM-based sensor has several advantages: First, it is of a higher sensitivity and lower computational cost; second, it requires no prior calibration to get accurate 2D displacements which can greatly simplify the practical application for multiple crack monitoring...
October 15, 2018: Sensors
R A Street, M Smith, M Moshabela, B Shezi, C Webster, T Falkenberg
OBJECTIVES: To highlight legal and regulatory advances relating to South African traditional health practitioners (THPs) over the past 10 years and discuss the implications for the translation of health policies into guidelines for sustainable practice supporting public health. STUDY DESIGN: This is a rapid, structured literature review. METHODS: A rapid, structured literature review was undertaken to identify relevant studies related to South African THPs involving a search of peer-reviewed literature from three databases and a grey literature internet search...
October 13, 2018: Public Health
Sameer Shaikh, Tara Stratton, Alim Pardhan, Teresa M Chan
Introduction With thousands of new medical trials released every year, health care policymakers must work diligently to incorporate new evidence into clinical practice. Although there are some broad conceptual frameworks for knowledge translation in the emergency department (ED), there are few user-centered studies that illustrate how local policymakers develop and disseminate new policies. Objectives Our study sought to evaluate the process by which new departmental policies are formed in ED, how new evidence was integrated into this process, and to explore barriers to implementation...
August 2, 2018: Curēus
Catherine C Reilly, William Y Raynor, Abigail L Hong, Daniel C Kargilis, Jae S Lee, Austin G Alecxih, Nishtha Gupta, Marie K Lim, Abdullah Al-Zaghal, Thomas J Werner, Sylvia S Rhodes, Abass Alavi, Chamith S Rajapakse
The prevalence of metabolic bone diseases particularly osteoporosis and its precursor, osteopenia, continue to grow as serious global health issues today. On a worldwide perspective, 200million people suffer from osteoporosis and in 2005, over 2million fracture incidents were estimated due to osteoporosis in the United States. Currently, osteoporosis and other metabolic bone diseases are evaluated primarily through dual energy X-ray absorptiometry, and rarely by bone biopsy with tetracycline labeling or Technetium-99m (99m Tc) based bone scintigraphy...
November 2018: Seminars in Nuclear Medicine
Piedad Martin-Olmedo, Rebecca Hams, Michele Santoro, Andrea Ranzi, Gerard Hoek, Kees de Hoogh, Giovanni S Leonardi
BACKGROUND: this paper is based upon work from COST Action ICSHNet. Public health surveillance (PHS) of industrially contaminated sites (ICSs) is likely to play a role in supporting the monitoring of harmful aspects of ICSs and related interventions. Environmental public health tracking (EPHT) has been proposed and developed as an approach to PHS when environmental factors affecting health are involved. OBJECTIVES: to identify existing arrangements for continuous collection and analysis of environmental and health data to guide the development of an optimal EPHT approach which would support the characterization of the impact on health of ICS...
September 2018: Epidemiologia e Prevenzione
Eugenio Marino-Merlo, Andrea Bulletti, Pietro Giannelli, Marco Calzolai, Lorenzo Capineri
The structural health monitoring (SHM) of critical structures is a complex task that involves the use of different sensors that are also aimed at the identification of the location of the impact point using ultrasonic sensors. For the evaluation of the impact position, reference is often made to the well-known triangulation method. This method requires the estimation of the differential time of arrival (DToA) and the group velocity of the Lamb waves propagating into a plate-like structure: the uncertainty of these two parameters is taken into consideration as main cause of localization error...
October 12, 2018: Sensors
Niina-Mari Inkeri, Merja Karjalainen, Maija Haanpää, Hannu Kautiainen, Juha Saltevo, Pekka Mäntyselkä, Miia Tiihonen
WHAT IS KNOWN AND OBJECTIVE: Anticholinergic drug use has been associated with a risk of central and peripheral adverse effects. There is a lack of information on anticholinergic drug use in persons with diabetes. The aim of this study is to investigate anticholinergic drug use and the association between anticholinergic drug use and self-reported symptoms in older community-dwelling persons with and without diabetes. METHODS: The basic population was comprised of Finnish community-dwelling primary care patients aged 65 and older...
October 12, 2018: Journal of Clinical Pharmacy and Therapeutics
Qi Wu, Yoji Okabe, Fengming Yu
The fiber Bragg grating (FBG) sensor, which was developed over recent decades, has been widely used to measure manifold static measurands in a variety of industrial sectors. Multiple experiments have demonstrated its ability in ultrasonic detection and its potential in ultrasonic structural health monitoring. Unlike static measurements, ultrasonic detection requires a higher sensitivity and broader bandwidth to ensure the fidelity of the ultrasonic Lamb wave that propagates in a plate-like structure for the subsequent waveform analysis...
October 11, 2018: Sensors
Nicola J Allen, David A Lyons
Glia constitute roughly half of the cells of the central nervous system (CNS) but were long-considered to be static bystanders to its formation and function. Here we provide an overview of how the diverse and dynamic functions of glial cells orchestrate essentially all aspects of nervous system formation and function. Radial glia, astrocytes, oligodendrocyte progenitor cells, oligodendrocytes, and microglia each influence nervous system development, from neuronal birth, migration, axon specification, and growth through circuit assembly and synaptogenesis...
October 12, 2018: Science
Hee-Jung Lee, Yeondong Cho, Hyeon Jeong Kang, Hanul Choi, Kang Rok Han, Chom Kyu Chong, Young Bong Kim
Zika virus (ZIKV), a mosquito-borne flavivirus that has recently emerged globally, poses a major threat to public health. To control this emerging disease, accurate diagnostics are required for monitoring current ZIKV outbreaks. Owing to the high nucleotide sequence similarity and cross-reactivity of ZIKV with other members of the Flaviviridae family, discrimination from other flavivirus infections is often difficult in endemic areas. ZIKV NS1 induces major virus-specific antibodies and is therefore utilized as a serological marker for ZIKV diagnosis...
October 8, 2018: Biochemical and Biophysical Research Communications
Lynae M Brayboy, Haley Clark, Laura O Knapik, Ruby E Schnirman, Gary M Wessel
Nitrogen mustard (NM) is an alkylating chemical warfare agent, and its derivatives are used in chemotherapy. Alkylating agents can cause mitochondrial damage, so exposed females may transmit damaged genomes to their children, since mitochondria are maternally inherited and oocytes are not thought to undergo mitophagy [1]. The objective of this study is to investigate NM's effects on oocyte mitochondria to understand risks facing female soldiers, cancer patients, and their children. Mice were injected intraperitoneally with NM, monitored for reproductive outcomes, and ovaries and oocytes were isolated for analysis...
October 8, 2018: Reproductive Toxicology
Huixuan Zhou, Ge Bai, Jiechun Gao, Yinan Zhou, Emily Ma, Linlin Hu, Guangyu Hu, Pengyu Zhao, Feng Jiang, Li Luo, Yuanli Liu
OBJECTIVE: To develop a set of structure and process indicators to evaluate tertiary hospitals' performance in the Healthcare Improvement Initiative, a national program with a goal to improve quality of patient-centered care. METHODS: A modified Delphi technique, including literature review, multidisciplinary panel meeting and anonymous rating, was used to generate a set of indicators. A practice test involving both general and special hospitals was conducted to ensure the feasibility of data collection for these indicators...
2018: PloS One
Anrudh K Jain
CONTEXT: Despite efforts to use facility surveys to measure the quality of family planning programs, routine, reliable measurement and monitoring of national-level quality has not been possible. METHODS: A new composite index to measure national-level quality, the National Quality Composite Index (NQCI), is proposed and used to compare program quality in 30 developing countries. Index scores represent the unweighted average of scores from indicators of three different dimensions of quality-structure, process and outcome...
June 1, 2018: International Perspectives on Sexual and Reproductive Health
Ester Herrmann, A Ecke, S Fichtlscherer, A M Zeiher, B Assmus
BACKGROUND: Patients with advanced heart failure suffer from frequent hospitalizations. Noninvasive hemodynamic telemonitoring for assessment of pulmonary filling pressure has been shown to reduce hospitalizations. In this article, our experience with possible control intervals and the standardization of the follow-up care of hemodynamic telemonitoring is reported. METHODS: A literature search and our own experience in the follow-up care concerning the implantable pulmonary artery pressure sensor for noninvasive hemodynamic telemonitoring in patients with advanced heart failure are presented...
October 10, 2018: Herzschrittmachertherapie & Elektrophysiologie
Paul J Jannetto, Anders Helander, Uttam Garg, Gregory C Janis, Bruce Goldberger, Hemamalini Ketha
BACKGROUND: Since 2013, an unprecedented surge in fentanyl overdose deaths has been caused by heroin laced with illicitly produced fentanyl and/or fentanyl analogs (FAs) sold as heroin. The US Drug Enforcement Agency's National Forensic Laboratory Information System reported a >300% increase in fentanyl encounters from 4697 in 2014 to 14440 in 2015. In 2015, the CDC reported 9580 deaths caused by synthetic opioids, primarily fentanyl, a 72% increase from 2014. The European Monitoring Centre for Drugs and Drug Addiction has also encountered several new FAs in the heroin supply...
October 10, 2018: Clinical Chemistry
Tao Yin, Hong-Ping Zhu
Excellent pattern matching capability makes artificial neural networks (ANNs) a very promising approach for vibration-based structural health monitoring (SHM). The proper design of the network architecture with the suitable complexity is vital to the ANN-based structural damage detection. In addition to the number of hidden neurons, the type of transfer function used in the hidden layer cannot be neglected for the ANN design. Neural network learning can be further presented in the framework of Bayesian statistics, but the issues of selection for the hidden layer transfer function with respect to the Bayesian neural network has not yet been reported in the literature...
October 9, 2018: Sensors
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