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Do Youn Kim, Yunseo Ku, Joong Woo Ahn, Chiheon Kwon, Hee Chan Kim
Background: One of the key issues in electroencephalogram (EEG) monitoring is accurate signal acquisition with less cumbersome electrodes. In this study, the L2 phase electro-deposited nanoporous platinum (L2-ePt) electrode is introduced, which is a new type of electrode that utilizes a stable nanoporous platinum surface to reduce the skin-electrode impedance. Methods: L2-ePt electrodes were fabricated using electro-deposition technique. Then, the effect of the nanoporous surface on the surface roughness and the electrode impedance were observed from the L2-ePt electrodes and the flat platinum (FlatPt) electrode...
May 21, 2018: Journal of Korean Medical Science
Stephen J Davis, Daire Ó hUallacháin, Per-Erik Mellander, Ann-Marie Kelly, Christoph D Matthaei, Jeremy J Piggott, Mary Kelly-Quinn
Multiple stressors affect stream ecosystems worldwide and their interactions are of particular concern, with gaps existing in understanding stressor impacts on stream communities. Addressing these knowledge gaps will aid in targeting and designing of appropriate mitigation measures. In this study, the agricultural stressors fine sediment (ambient, low, medium, high), phosphorus (ambient, enriched) and nitrogen (ambient, enriched) were manipulated simultaneously in 64 streamside mesocosms to determine their individual and combined effects on the macroinvertebrate community (benthos and drift)...
May 10, 2018: Science of the Total Environment
Kadkao Vongsavan, Tshering Samdrup, Kanittha Kijsamanmith, Praphasri Rirattanapong, Noppakun Vongsavan
OBJECTIVES: The aim of this study was to determine the effect of intraosseous (IO) anesthesia with 4% articaine and 1:100,000 epinephrine on pulpal blood flow (PBF) and pulpal anesthesia of mandibular first molars and canines in human subjects. MATERIALS AND METHODS: Ten healthy volunteers with intact mandibular first molar and canine were given an osteocentral technique of IO injection using the Quick Sleeper 5 system and 4% articaine with 1:100,000 epinephrine at distal site of mandibular first molar...
May 10, 2018: Clinical Oral Investigations
Huaiming Li, Dandan Yan, Hai Liu
Through magnetic resonance electrical properties tomography (MR-EPT), electrical conductivity and permittivity of biological tissues could be reconstructed based on radio frequency field of magnetic resonance imaging (MRI) system. High precision and high resolution image could be obtained without current injection. In this study, XFDTD software was used to establish a finite element model of the human breast. Simulation was delivered at the Larmor frequency of 128 MHz by a 16-channel radio frequency coil. Conductivity and permittivity of the mammary tissue was reconstructed according to the B 1 + field's amplitude and phase of forward problem...
August 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
Sohyun Kim, Yeonsook Ko, Hwa Jeong Lee, Jung-Eun Lim
PURPOSE: This meta-analysis investigated the association between the risk of breast cancer and hormone replacement therapy (HRT). Various stratified analyses were performed according to race (Asian/Westerner), HRT type [all hormone therapies, estrogen-only therapy (ET), or combined estrogen-progestin therapy (EPT)], histological breast cancer type (ductal/lobular/mixed ductal-lobular), and estrogen receptor status (ER-positive/ER-negative). METHODS: A literature search was performed using Pubmed, Embase, and KoreaMed...
April 30, 2018: Breast Cancer Research and Treatment
Nadja A Farshad-Amacker, Daniel Nanz, Arjun Thanbanbalasingam, Gustav Andreisek, Mathias Nittka, Roger Luechinger
We aimed to investigate whether different transmission settings of the dual-transmit technology may influence the amount of heat induction around an implant material dependent on its location within the magnetic field. Metallic hip implants were positioned in the magnet of a 3-T scanner at various lateral offset positions in relation to the magnetic axis in a body-phantom tank filled with polyacrylic acid gel. The temperature increase close to the implants was measured during turbo spin-echo scanning using dual-channel parallel radiofrequency (RF) transmission with circular in comparison to elliptic RF polarization...
2018: European radiology experimental
Nigel J Garrett, Farzana Osman, Bhavna Maharaj, Nivashnee Naicker, Andrew Gibbs, Emily Norman, Natasha Samsunder, Hope Ngobese, Nireshni Mitchev, Ravesh Singh, Salim S Abdool Karim, Ayesha B M Kharsany, Koleka Mlisana, Anne Rompalo, Adrian Mindel
INTRODUCTION: In light of the limited impact the syndromic management approach has had on the global sexually transmitted infection (STI) epidemic, we assessed a care model comprising point-of-care (POC) STI testing, immediate treatment, and expedited partner therapy (EPT) among a cohort of young women at high HIV risk in South Africa. METHODS AND FINDINGS: HIV negative women presenting for STI care underwent POC testing for Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG) and Trichomonas vaginalis (TV), and swabs were sent for NG culture and susceptibility testing...
2018: PloS One
Senthil Kumar Thiyagarajan, Raghupathy Suresh, Vadivel Ramanan, Perumal Ramamurthy
Light induced multisite electron proton transfer in two different phenol (simple and phenol carrying an intramolecularly hydrogen bonded base) pendants on acridinedione dye (ADD) and an NADH analogue was studied by following fluorescence quenching dynamics in an ultrafast timescale. In a simple phenol derivative (ADDOH), photo-excited acridinedione acquires an electron from phenol intramolecularly, coupled with the transfer of a proton to solvent water. But in a phenol carrying hydrogen bonded base (ADDDP), both electron and proton transfer occur completely intramolecularly...
January 28, 2018: Chemical Science
Piia Lönnberg, Ulla Niutanen, L Diane Parham, Elina Wolford, Sture Andersson, Marjo Metsäranta, Aulikki Lano
BACKGROUND: Children born preterm are prone to motor problems. Research on their motor performance has, however, rarely been integrated with sensory processing. AIM: To examine sensory-motor performance in children born extremely preterm (EPT). METHOD: In a longitudinal prospective cohort study, 49 EPT (born <28 gestational weeks; 32 boys and 17 girls) and 33 term-born (16 boys and 17 girls) children were assessed with six individual subtests from the Sensory Integration and Praxis Tests at the age of 7...
March 28, 2018: Early Human Development
Alejandro García-Gil, Samanta Gasco-Cavero, Eduardo Garrido, Miguel Mejías, Jannis Epting, Mercedes Navarro-Elipe, Carmen Alejandre, Elena Sevilla-Alcaine
The implications of intensive use of shallow geothermal energy resources in shallow urban aquifers are still not known for waterborne pathogens relevant to human health. Firstly, we hypothesized that waterborne enteric pathogens would be relatively increased in heated groundwater plumes. To prove this, microbiological sampling of 31 piezometers covering the domain of an urban groundwater body affected by microbiological contamination and energetically exploited by 70 groundwater heat pump systems was performed...
March 27, 2018: Science of the Total Environment
María Mar Sánchez-Montoya, Daniel von Schiller, Gonzalo G Barberá, Angela M Díaz, Maria Isabel Arce, Rubén Del Campo, Klement Tockner
In the present study, we examined the effects of different drying conditions on the composition, structure and function of benthic invertebrate assemblages. We approached this objective by comparing invertebrate assemblages in perennial and intermittent sites along two intermittent Mediterranean streams with contrasting predictability, duration, and spatial patterns of drying: Fuirosos (high predictability, short duration, downstream drying pattern) and Rogativa (low predictability, long duration, patchy drying pattern)...
2018: PloS One
Nienke H van Dokkum, Marlou L A de Kroon, Arend F Bos, Sijmen A Reijneveld, Jorien M Kerstjens
BACKGROUND: Little is known on the motor development of moderately preterm born (MPT) children, in comparison with early preterm born (EPT) children and fullterm born (FT), for children with normal motor outcomes at school entry. AIMS: To compare attainment rates of gross motor milestones reached between ages 1-24 months for MPT, EPT, and FT children, all with normal development upon school entry. STUDY DESIGN: Prospective cohort study. SUBJECTS: We included 1247 preterm (PT) children (gestational age [GA] 24...
March 23, 2018: Early Human Development
Steven M Epting, Jacob D Hosen, Laurie C Alexander, Megan W Lang, Alec W Armstrong, Margaret A Palmer
Geographically isolated wetlands, those entirely surrounded by uplands, provide numerous landscape-scale ecological functions, many of which are dependent on the degree to which they are hydrologically connected to nearby waters. There is a growing need for field-validated, landscape-scale approaches for classifying wetlands on the basis of their expected degree of hydrologic connectivity with stream networks. This study quantified seasonal variability in surface hydrologic connectivity (SHC) patterns between forested Delmarva bay wetland complexes and perennial/intermittent streams at 23 sites over a full-water year (2014-2015)...
February 15, 2018: Hydrological Processes
Anshul Mainkar, Sahng G Kim
INTRODUCTION: The aim of this systematic review was to investigate and compare the diagnostic accuracy including sensitivity, specificity, adjusted accuracy, adjusted positive predictive value (PPV), and adjusted negative predictive value (NPV) of cold pulp testing (CPT), heat pulp testing (HPT), electric pulp testing (EPT), laser Doppler flowmetry (LDF), and pulse oximetry (PO). METHODS: Three electronic databases were searched from January 1964 to December 2016...
March 20, 2018: Journal of Endodontics
Lancer A Scott, Layne A Madden, Amy E Wahlquist, Daniel W Fisher
Purpose Clinical disaster medicine requires providers working collaboratively to care for multiple patients, yet many clinicians lack competency-based training. A 5-hour emergency preparedness training (EPT) curriculum was created using didactics, small group discussion, and scenario-based learning. The goal was to evaluate the effect of a short course on improving clinical-provider knowledge, confidence and skill. METHODS: Participants were enrolled in a medical university between 2011 and 2014...
February 2018: Disaster Medicine and Public Health Preparedness
Yasuhiro Horibata, Orly Elpeleg, Ayelet Eran, Yoshio Hirabayashi, David Savitzki, Galit Tal, Hanna Mandel, Hiroyuki Sugimoto
Ethanolamine phosphotransferase 1 (EPT1), also known as selenoprotein 1 (SELENOI), is an enzyme that transfers phosphoethanolamine from cytidine diphosphate (CDP)-ethanolamine to lipid acceptors to produce ethanolamine glycerophospholipids such as diacyl-linked phosphatidylethanolamine (PE) and ether-linked plasmalogen (plasmenyl-PE). However, to date there has been no analysis of the metabolomic consequence of the mutation of EPT1 on the concentration of ethanolamine glycerophospholipids in mammalian cells...
March 2, 2018: Journal of Lipid Research
Vaishnavi Calisa, Jonathan C Craig, Kirsten Howard, Martin Howell, Stephen Alexander, Steven J Chadban, Philip Clayton, Wai H Lim, John Kanellis, Kate Wyburn, David W Johnson, Stephen P McDonald, Helen Opdam, Jeremy R Chapman, Jean Yang, Germaine Wong
BACKGROUND: To determine the incremental gains in graft and patient survival under a risk-based, deceased donor kidney allocation compared to the current Australian algorithm. METHODS: Risk-based matching algorithms were applied to first graft, kidney only recipients (n=7513) transplanted in Australia between 1994 and 2013. Probabilistic models were used to compare the waiting time, life and quality-adjusted life years and graft years between the 8 risk-based allocation strategies against current practice...
February 26, 2018: Transplantation
Sherri Lynne Katz, Thuy Mai Luu, Anne-Monique Nuyt, Thierry Lacaze, Kristi Brae Adamo, Ian Adatia, Tilman Humpl, Robert Peter Jankov, Theo J Moraes, Katharina Staub, Michael K Stickland, Bernard Thebaud
Bronchopulmonary dysplasia, the most common pulmonary complication of extremely preterm (EPT) birth, has longstanding multiorgan repercussions, with increasing reports of emphysema and cardiac disease in early adulthood. There are currently no clear recommendations pertaining to best practices for optimal multidisciplinary cardiorespiratory follow-up of EPT children. We report the outcomes of a 2-day consensus workshop involving a Canadian panel of 31 multidisciplinary experts with the goal of improvement and standardization of the cardiopulmonary follow-up care of EPT infants (i...
May 2017: Paediatrics & Child Health
Gregor Fuhrmann, Rona Chandrawati, Paresh A Parmar, Timothy J Keane, Stephanie A Maynard, Sergio Bertazzo, Molly M Stevens
Extracellular vesicles (EVs) have recently gained significant attention as important mediators of intercellular communication, potential drug carriers, and disease biomarkers. These natural cell-derived nanoparticles are postulated to be biocompatible, stable under physiological conditions, and to show reduced immunogenicity as compared to other synthetic nanoparticles. Although initial clinical trials are ongoing, the use of EVs for therapeutic applications may be limited due to undesired off-target activity and potential "dilution effects" upon systemic administration which may affect their ability to reach their target tissues...
April 2018: Advanced Materials
Lauren N Borchardt, Michelle L Pickett, Kevin T Tan, Alexis M Visotcky, Amy L Drendel
BACKGROUND: Expedited partner therapy (EPT) is an effective strategy for partner management of sexually transmitted infections. Some states, including Wisconsin, allow EPT prescriptions to be filled without a patient name. This study determined the refusal rates of nameless EPT prescriptions in Milwaukee pharmacies. METHODS: In this cross-sectional study, 3 trained research assistants of different age, sex, and race posed as "patients" and visited 50 pharmacy locations from one pharmacy chain in Milwaukee County, WI, to fill nameless EPT prescriptions...
May 2018: Sexually Transmitted Diseases
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