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https://www.readbyqxmd.com/read/28212348/an-electromagnetic-sensor-for-the-autonomous-running-of-visually-impaired-and-blind-athletes-part-ii-the-wearable-device
#1
Marco Pieralisi, Valentina Di Mattia, Valerio Petrini, Alfredo De Leo, Giovanni Manfredi, Paola Russo, Lorenzo Scalise, Graziano Cerri
Currently, the availability of technology developed to increase the autonomy of visually impaired athletes during sports is limited. The research proposed in this paper (Part I and Part II) focuses on the realization of an electromagnetic system that can guide a blind runner along a race track without the need for a sighted guide. In general, the system is composed of a transmitting unit (widely described in Part I) and a receiving unit, whose components and main features are described in this paper. Special attention is paid to the definition of an electromagnetic model able to faithfully represent the physical mechanisms of interaction between the two units, as well as between the receiving magnetic sensor and the body of the user wearing the device...
February 16, 2017: Sensors
https://www.readbyqxmd.com/read/28212198/forensic-nursing-provides-closure-in-workplace-fatality
#2
Colin Harris
The Workers' Compensation Board of British Columbia in Canada is the provincial agency mandated to investigate workplace injuries and fatalities. In 2012, the Fatal and Serious Injuries Investigation section of this organization initiated the integration of forensic nursing expertise into the investigation of workplace incidents. The goals were to improve investigative outcomes and aid in prevention initiatives by achieving a more accurate understanding of incident causation through the application of forensic nursing science...
January 2017: Journal of Forensic Nursing
https://www.readbyqxmd.com/read/28212059/pediatric-chest-ct-diagnostic-reference-ranges-development-and-application
#3
Keith J Strauss, Marilyn J Goske, Alexander J Towbin, Debapriya Sengupta, Michael J Callahan, Kassa Darge, Daniel J Podberesky, Donald P Frush, Charles Maxfield, Sjirk J Westra, Jeffrey S Prince, Huimin Wu, Mythreyi Bhargavan-Chatfield
Purpose To determine diagnostic reference ranges on the basis of the size of a pediatric patient's chest and to develop a method to estimate computed tomographic (CT) scanner-specific mean size-specific dose estimates (SSDEs) as a function of patient size and the radiation output of each CT scanner at a site. Materials and Methods The institutional review boards of each center approved this retrospective, HIPAA-compliant, multicenter study; informed consent was waived. CT dose indexes (SSDE, volume CT dose index, and dose length product) of 518 pediatric patients (mean age, 9...
February 17, 2017: Radiology
https://www.readbyqxmd.com/read/28212052/proton-density-fat-fraction-measurements-at-1-5-and-3-t-hepatic-mr-imaging-same-day-agreement-among-readers-and-across-two-imager-manufacturers
#4
Suraj D Serai, Jonathan R Dillman, Andrew T Trout
Purpose To determine the agreement of proton density fat fraction (PDFF) measurements obtained with hepatic magnetic resonance (MR) imaging among readers, imager manufacturers, and field strengths. Materials and Methods This HIPAA-compliant study was approved by the institutional review board. After providing informed consent, 24 adult volunteers underwent imaging with one 1.5-T MR unit (Ingenia; Philips Healthcare, Best, the Netherlands) and two different 3.0-T units (750 W [GE Healthcare, Waukesha, Wis] and Ingenia) on the same day to estimate hepatic PDFF...
February 24, 2017: Radiology
https://www.readbyqxmd.com/read/28212051/-99m-tc-mag3-image-wisely
#5
Andrew T Taylor, Russell D Folks, A K M Fazlur Rahman, Aruna Polsani, Eva V Dubovsky, Raghuveer Halkar, Amita Manatunga
Purpose To determine if commonly administered doses of technetium 99m ((99m)Tc) mertiatide (MAG3) in the range of 300-370 MBq (approximately 8-10 mCi) contribute to image interpretation and justify the resulting radiation exposure. Materials and Methods The respective institutional review boards approved this HIPAA-compliant study and waived informed consent. Baseline and furosemide (99m)Tc-MAG3 imaging examinations in 50 patients suspected of having renal obstruction and 48 patients suspected of having renovascular hypertension (RVH) were randomly selected from archived databases and were independently scored by three experienced readers without access to 2-second flow images...
February 17, 2017: Radiology
https://www.readbyqxmd.com/read/28211002/factors-that-influence-effective-perioperative-temperature-management-by-anesthesiologists-a-qualitative-study-using-the-theoretical-domains-framework
#6
Sylvain Boet, Andrea M Patey, Justine S Baron, Karim Mohamed, Ashlee-Ann E Pigford, Gregory L Bryson, Jamie C Brehaut, Jeremy M Grimshaw
PURPOSE: Inadvertent perioperative hypothermia (IPH) is associated with a range of adverse outcomes. Safe and effective warming techniques exist to prevent IPH; however, IPH remains common. This study aimed to identify factors that anesthesiologists perceive may influence temperature management during the perioperative period. METHODS: After Research Ethics Board approval, semi-structured interviews were conducted with staff anesthesiologists at a Canadian academic hospital...
February 16, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/28210366/blog-and-podcast-watch-cutaneous-emergencies
#7
Andrew Grock, Eric J Morley, Lynn Roppolo, Jay Khadpe, Felix Ankel, Michelle Lin
INTRODUCTION: The WestJEM Blog and Podcast Watch presents high quality open-access educational blogs and podcasts in emergency medicine (EM) based on the ongoing Academic Life in Emergency Medicine (ALiEM) Approved Instructional Resources (AIR) and AIR-Professional series. Both series critically appraise resources using an objective scoring rubric. This installment of the Blog and Podcast Watch highlights the topic of cutaneous emergencies from the AIR series. METHODS: The AIR series is a continuously building curriculum that follows the Council of Emergency Medicine Residency Directors (CORD) annual testing schedule...
February 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28209893/localized-aliphatic-organic-material-on-the-surface-of-ceres
#8
M C De Sanctis, E Ammannito, H Y McSween, A Raponi, S Marchi, F Capaccioni, M T Capria, F G Carrozzo, M Ciarniello, S Fonte, M Formisano, A Frigeri, M Giardino, A Longobardo, G Magni, L A McFadden, E Palomba, C M Pieters, F Tosi, F Zambon, C A Raymond, C T Russell
Organic compounds occur in some chondritic meteorites, and their signatures on solar system bodies have been sought for decades. Spectral signatures of organics have not been unambiguously identified on the surfaces of asteroids, whereas they have been detected on cometary nuclei. Data returned by the Visible and InfraRed Mapping Spectrometer on board the Dawn spacecraft show a clear detection of an organic absorption feature at 3.4 micrometers on dwarf planet Ceres. This signature is characteristic of aliphatic organic matter and is mainly localized on a broad region of ~1000 square kilometers close to the ~50-kilometer Ernutet crater...
February 17, 2017: Science
https://www.readbyqxmd.com/read/28209501/comparing-surgical-clerkship-performance-of-medical-and-physician-assistant-students
#9
Nasser N Alamiri, Charles Miles Maliska, Heather Chancellor-McIntosh, Guido Sclabas
OBJECTIVE: Third-year medical students (MS-III) and second-year physician assistant students (PA-S) have similar core clinical rotations during their education. Uniquely at our institution, both groups rotate together and are assessed by the same evaluation and grading standards. This study compares the performance of MS-III and PA-S during their combined surgical clerkship rotation. DESIGN: A retrospective analysis on students' final clerkship grades, individual grades for clinical performance evaluation, objective structured clinical examination, faculty tutorials, and National Board of Medical Education (NBME) general surgery examination for academic years 2013 and 2014...
February 13, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28208897/a-validation-of-an-examination-protocol-for-cerebral-visual-impairment-among-children-in-a-clinical-population-in-india
#10
Swetha Sara Philip, Sherab Tsherlinga, Maya Mary Thomas, Gordon N Dutton, Richard Bowman
INTRODUCTION: Cerebral Visual Impairment (CVI) is a leading cause of vision impairment in developed and developing countries due to and increased survival of preterm and low birth weight infants. There are few data concerning the validity of protocols available to diagnose CVI. AIM: This study aimed to document the face, content and construct validity of an assessment protocol namely, a 15-domain, Structured Clinical Question Inventory (SCQI), which is based on structured history taking and clinical examination, for the diagnosis of CVI in a clinical population of India...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208795/reliable-identi%C3%AF-cation-of-vehicle-boarding-actions-based-on-fuzzy-inference-syste
#11
DaeHan Ahn, Homin Park, Seokhyun Hwang, Taejoon Park
Existing smartphone-based solutions to prevent distracted driving suffer from inadequate system designs that only recognize simple and clean vehicle-boarding actions, thereby failing to meet the required level of accuracy in real-life environments. In this paper, exploiting unique sensory features consistently monitored from a broad range of complicated vehicle-boarding actions, we propose a reliable and accurate system based on fuzzy inference to classify the sides of vehicle entrancebyleveragingbuilt-insmartphonesensorsonly...
February 9, 2017: Sensors
https://www.readbyqxmd.com/read/28208758/a-study-on-the-thermomechanical-reliability-risks-of-through-silicon-vias-in-sensor-applications
#12
Shuai Shao, Dapeng Liu, Yuling Niu, Kathy O'Donnell, Dipak Sengupta, Seungbae Park
Reliability risks for two different types of through-silicon-vias (TSVs) are discussed in this paper. The first is a partially-filled copper TSV, if which the copper layer covers the side walls and bottom. A polymer is used to fill the rest of the cavity. Stresses in risk sites are studied and ranked for this TSV structure by FEA modeling. Parametric studies for material properties (modulus and thermal expansion) of TSV polymer are performed. The second type is a high aspect ratio TSV filled by polycrystalline silicon (poly Si)...
February 9, 2017: Sensors
https://www.readbyqxmd.com/read/28208631/a-novel-strain-based-method-to-estimate-tire-conditions-using-fuzzy-logic-for-intelligent-tires
#13
Daniel Garcia-Pozuelo, Oluremi Olatunbosun, Jorge Yunta, Xiaoguang Yang, Vicente Diaz
The so-called intelligent tires are one of the most promising research fields for automotive engineers. These tires are equipped with sensors which provide information about vehicle dynamics. Up to now, the commercial intelligent tires only provide information about inflation pressure and their contribution to stability control systems is currently very limited. Nowadays one of the major problems for intelligent tire development is how to embed feasible and low cost sensors to obtain reliable information such as inflation pressure, vertical load or rolling speed...
February 10, 2017: Sensors
https://www.readbyqxmd.com/read/28208133/how-truncating-are-truncating-languages-evidence-from-russian-and-german
#14
Tamara V Rathcke
Russian and German have pr eviously been described as 'truncating', or cutting off target frequencies of the phrase-final pitch trajectories when the time available for voicing is compromised. However, supporting evidence is rare and limited to only a few pitch categories. This paper reports a production study conducted to document pitch adjustments to linguistic materials, in which the amount of voicing available for the realization of a pitch pattern varies from relatively long to extremely short. Productions of nuclear H+L*, H* and L*+H pitch accents followed by a low boundary tone were investigated in the two languages...
February 23, 2017: Phonetica
https://www.readbyqxmd.com/read/28208122/a-conversation-among-the-ias-usa-board-of-directors-hot-topics-and-emerging-data-in-hiv-research-and-care
#15
Constance A Benson, Judith S Currier, Carlos Del Rio, Joel E Gallant, Roy M Gulick, Jeanne M Marrazzo, Douglas D Richman, Michael S Saag, Robert T Schooley, Paul A Volberding
The IAS-USA volunteer Board of Directors met in October 2016 for its annual meeting. For the second year, the Board conducted a live, hour-long, interactive, roundtable webinar covering current questions and issues in HIV research, prevention, and care. Important highlights from the Board's discussion, which was moderated by Paul A. Volberding, MD, are included below. Members of the IAS-USA volunteer Board of Directors are Constance A. Benson, MD; Judith S. Currier, MD; Carlos del Rio, MD; Joel E. Gallant, MD, MPH; Roy M...
December 2017: Topics in Antiviral Medicine
https://www.readbyqxmd.com/read/28207725/ethnic-and-geographic-variations-in-the-incidence-of-pancreatitis-and-post-pancreatitis-diabetes-mellitus-in-new-zealand-a-nationwide-population-based-study
#16
Sayali A Pendharkar, Juby Mathew, Jinfeng Zhao, John A Windsor, Daniel J Exeter, Maxim S Petrov
AIM: To determine the incidence of acute pancreatitis (AP), chronic pancreatitis (CP), and post-pancreatitis diabetes mellitus (DP) in New Zealand, and the effect of ethnic and geographic variations. METHODS: Data were collected from all district health boards in New Zealand by the Ministry of Health (Manatū Hauora). Diagnosis of AP, CP and DP was determined by the International Classification of Diseases-10 codes. Incidence rates per 100,000 population per year were calculated using incident AP, CP and DP cases as the numerator, and the adult resident population of New Zealand as the denominator...
February 17, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28207655/internally-randomized-control-trial-of-radiation-exposure-using-ultra-low-radiation-imaging-versus-traditional-c-arm-fluoroscopy-for-patients-undergoing-single-level-minimally-invasive-transforaminal-lumbar-interbody-fusion
#17
Timothy Y Wang, S Harrison Farber, Scott S Perkins, Adam G Back, Sarah A Byrd, Debbie Chi, David Vincent, Isaac O Karikari
STUDY DESIGN: Randomized controlled trial. OBJECTIVE: To compare radiation exposure between ultra-low radiation imaging (ULRI) with image enhancement and standard-dose fluoroscopy for patients undergoing minimally invasive transforaminal lumbar interbody fusion (MIS TLIF). SUMMARY OF BACKGROUND DATA: Although the benefits of MIS are lauded by many, there is a significant amount of radiation exposure to surgeon and operating room personnel...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28207400/a-low-cost-adaptive-balance-training-platform-for-stroke-patients-a-usability-study
#18
Sunny Verma, Deepesh Kumar, Animesh Kumawat, Anirban Dutta, Uttama Lahiri
Stroke patients usually suffer from asymmetric posture due to hemi-paresis that can result in reduced postural controllability leading to a balance deficit. This deficit increases the risk of falls, which often makes them dependent on caregivers for community ambulation, thus deteriorating their quality of life. Conventional balance training involves rehabilitation exercises performed under physiotherapist's supervision where the scarcity of trained professionals as well as the cost of clinic-based rehabilitation programs can deter stroke survivors from undergoing regular balance training...
February 9, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28207365/using-social-media-as-a-research-recruitment-tool-ethical-issues-and-recommendations
#19
Luke Gelinas, Robin Pierce, Sabune Winkler, I Glenn Cohen, Holly Fernandez Lynch, Barbara E Bierer
The use of social media as a recruitment tool for research with humans is increasing, and likely to continue to grow. Despite this, to date there has been no specific regulatory guidance and there has been little in the bioethics literature to guide investigators and institutional review boards (IRBs) faced with navigating the ethical issues such use raises. We begin to fill this gap by first defending a nonexceptionalist methodology for assessing social media recruitment; second, examining respect for privacy and investigator transparency as key norms governing social media recruitment; and, finally, analyzing three relatively novel aspects of social media recruitment: (i) the ethical significance of compliance with website "terms of use"; (ii) the ethics of recruiting from the online networks of research participants; and (iii) the ethical implications of online communication from and between participants...
March 2017: American Journal of Bioethics: AJOB
https://www.readbyqxmd.com/read/28206962/pi3k-pathway-mutations-are-associated-with-longer-time-to-local-progression-after-radioembolization-of-colorectal-liver-metastases
#20
Etay Ziv, Michael Bergen, Hooman Yarmohammadi, F Ed Boas, E Nadia Petre, Constantinos T Sofocleous, Rona Yaeger, David B Solit, Stephen B Solomon, Joseph P Erinjeri
PURPOSE: To establish the relationship between common mutations in the MAPK and PI3K signaling pathways and local progression after radioembolization. MATERIALS AND METHODS: Retrospective review of a HIPAA-compliant institutional review-board approved database identified 40 patients with chemo-refractory colorectal liver metastases treated with radioembolization who underwent tumor genotyping for hotspot mutations in 6 key genes in the MAPK/PI3K pathways (KRAS, NRAS, BRAF, MEK1, PIK3CA, and AKT1)...
February 11, 2017: Oncotarget
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