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https://www.readbyqxmd.com/read/28406937/cost-and-time-effective-method-for-multi-scale-measures-of-rugosity-fractal-dimension-and-vector-dispersion-from-coral-reef-3d-models
#1
G C Young, S Dey, A D Rogers, D Exton
We present a method to construct and analyse 3D models of underwater scenes using a single cost-effective camera on a standard laptop with (a) free or low-cost software, (b) no computer programming ability, and (c) minimal man hours for both filming and analysis. This study focuses on four key structural complexity metrics: point-to-point distances, linear rugosity (R), fractal dimension (D), and vector dispersion (1/k). We present the first assessment of accuracy and precision of structure-from-motion (SfM) 3D models from an uncalibrated GoPro™ camera at a small scale (4 m2) and show that they can provide meaningful, ecologically relevant results...
2017: PloS One
https://www.readbyqxmd.com/read/28398070/psychosocial-factors-and-oral-health-practices-of-preschool-aged-children-a-qualitative-study-with-hispanic-mothers
#2
T L Finlayson, N Y Beltran, K Becerra
OBJECTIVE: This qualitative study sought to gain an in-depth understanding of Hispanic mother's parenting experiences and perceptions about select psychosocial factors. How psychosocial factors influence mothers' engagement in recommended oral health-related behaviors for their preschool-aged children (3-5 years) was explored. Psychosocial resources and barriers explored included maternal knowledge about children's oral health, beliefs such as perceived self-efficacy and health locus of control, and parenting experience and stress...
April 11, 2017: Ethnicity & Health
https://www.readbyqxmd.com/read/28396369/the-one-in-a-million-study-creating-a-database-of-uk-primary-care-consultations
#3
Marcus Jepson, Chris Salisbury, Matthew J Ridd, Chris Metcalfe, Ludivine Garside, Rebecca K Barnes
BACKGROUND: Around 1 million primary care consultations happen in England every day. Despite this, much of what happens in these visits remains a 'black box'.Aim To create an archive of videotaped consultations and linked data based on a large sample of routine face-to-face doctor-patient consultations with consent for use in future research and training.Design and setting Cross-sectional study in 12 general practices in the west of England, UK. METHOD: Up to two GPs from each practice took part in the study...
April 10, 2017: British Journal of General Practice: the Journal of the Royal College of General Practitioners
https://www.readbyqxmd.com/read/28374611/laser-induced-breakdown-spectroscopy-for-the-rapid-characterization-of-lead-free-gunshot-residues
#4
Lashaundra A Fambro, Deidre D Vandenbos, Matthew B Rosenberg, Christopher R Dockery
This study investigated the use of laser-induced breakdown spectroscopy (LIBS) and scanning electron microscopy energy dispersive X-ray spectroscopy (SEM-EDX) as means of characterizing gunshot residue (GSR) originating from commercially available lead-free rounds. Data from two experiments are presented in this work. One experiment focused on identifying prominent analytical markers present in lead-free GSR by LIBS while the other applied SEM-EDX to determine the degree of evidence preservation after LIBS analysis...
April 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28372745/microbial-and-size-characterization-of-airborne-particulate-matter-collected-on-sticky-tapes-along-us-mexico-border
#5
Amir González-Delgado, Manoj K Shukla, David W DuBois, Juan P Flores-Márgez, Joel A Hernández Escamilla, Evangelina Olivas
Particulate matter (PM) emissions from various sources can affect significantly human health and environmental quality especially in the Chihuahuan Desert region along US-Mexico border. The objective of this study was to use the low-cost sticky tape method to collect airborne PM for size characterization and identification of fungal spores. Sticky tape samplers were placed at 1.0 and 2.0m above the ground surface at experimental sites in Ciudad Juárez, Mexico and at 0.6, 1.2 and 1.8m at New Mexico sites, USA...
March 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28360455/a-feasibility-study-of-high-strength-bi-2223-conductor-for-high-field-solenoids
#6
A Godeke, D V Abraimov, E Arroyo, N Barret, M D Bird, A Francis, J Jaroszynski, D V Kurteva, W D Markiewicz, E L Marks, W S Marshall, D M McRae, P D Noyes, R C P Pereira, Y L Viouchkov, R P Walsh, J M White
We performed a feasibility study on a high-strength Bi2-x Pb x Sr2Ca2Cu3O10-x (Bi-2223) tape conductor for high-field solenoid applications. The investigated conductor, DI-BSCCO Type HT-XX, is a pre-production version of Type HT-NX, which has recently become available from Sumitomo Electric Industries (SEI). It is based on their DI-BSCCO Type H tape, but laminated with a high-strength Ni-alloy. We used stress-strain characterizations, single- and double-bend tests, easy- and hard-way bent coil-turns at various radii, straight and helical samples in up to 31...
March 2017: Superconductor Science & Technology
https://www.readbyqxmd.com/read/28282245/live-with-the-disease-like-you-used-to-before-you-knew-you-were-infected-a-qualitative-study-among-10-year-survivors-living-with-hiv-in-haiti
#7
Samuel Pierre, Vanessa Riviera, Circee Phara Jean, Marie Jude Jean Louis, Lindsey K Reif, Patrice Severe, Vanessa Rouzier, Warren D Johnson, Jean W Pape, Daniel W Fitzgerald, Margaret L McNairy, Carla Boutin-Foster
In 2003, the Haitian Study Group on Kaposi's Sarcoma and Opportunistic Infections (GHESKIO), a nonprofit organization, began administering antiretroviral therapy (ART) to its patients. This practice transformed HIV from a fatal disease to a more manageable chronic condition. However, relatively few studies focus on the experiences of survivors. This study provided a unique opportunity to interview patients who survived at least 10 years after being treated with ART at GHESKIO. The goal of the study was to elicit from patients their perspectives on what enabled them to survive with AIDS...
March 2017: AIDS Patient Care and STDs
https://www.readbyqxmd.com/read/28254516/relationship-between-teach-back-and-patient-centered-communication-in-primary-care-pediatric-encounters
#8
Adam Badaczewski, Laurie J Bauman, Arthur E Blank, Benard Dreyer, Mary Ann Abrams, Ruth E K Stein, Debra L Roter, Jobayer Hossain, Hal Byck, Iman Sharif
OBJECTIVE: We proposed and tested a theoretical framework for how use of Teach-back could influence communication during the pediatric clinical encounter. METHODS: Audio-taped pediatric primary care encounters with 44 children with asthma were coded using the Roter Interaction Analysis System to measure patient-centered communication and affective engagement of the parent. A newly created Teach-back Loop Score measured the extent to which Teach-back occurred during the clinical encounter; parental health literacy was measured by Newest Vital Sign...
February 24, 2017: Patient Education and Counseling
https://www.readbyqxmd.com/read/28230906/evaluation-of-skin-surface-as-an-alternative-source-of-reference-dna-samples-a-pilot-study
#9
Mohammed H Albujja, Abdul Aziz Bin Dukhyil, Abdul Rauf Chaudhary, Ahmed Ch Kassab, Ahmed M Refaat, Saranya Ramesh Babu, Mohammad K Okla, Sachil Kumar
An acceptable area for collecting DNA reference sample is a part of the forensic DNA analysis development. The aim of this study was to evaluate skin surface cells (SSC) as an alternate source of reference DNA sample. From each volunteer (n = 10), six samples from skin surface areas (forearm and fingertips) and two traditional samples (blood and buccal cells) were collected. Genomic DNA was extracted and quantified then genotyped using standard techniques. The highest DNA concentration of SSC samples was collected using the tape/forearm method of collection (2...
February 23, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28220852/transfer-of-monolayer-tmd-ws2-and-raman-study-of-substrate-effects
#10
Jerome T Mlack, Paul Masih Das, Gopinath Danda, Yung-Chien Chou, Carl H Naylor, Zhong Lin, Néstor Perea López, Tianyi Zhang, Mauricio Terrones, A T Charlie Johnson, Marija Drndić
A facile transfer process for transition metal dichalcogenide WS2 flakes is reported and the effect of the underlying substrate on the flake properties is investigated using Raman spectroscopy. The flakes are transferred from their growth substrate using polymethyl methacrylate (PMMA) and a wet etch to allow the user to transfer the flakes to a final substrate using a microscope and micromanipulator combined with semi-transparent Kapton tape. The substrates used range from insulators such as industry standard high-k dielectric HfO2 and "green polymer" parylene-C, to conducting chemical vapor deposition (CVD) grown graphene...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28139863/role-of-intrinsic-sphincter-deficiency-with-and-without-urethral-hypomobility-on-the-outcome-of-tape-insertion
#11
Edyta Wlaźlak, Volker Viereck, Jacek Kociszewski, Andrzej Kuszka, Oliver Rautenberg, Claudia Walser, Grzegorz Surkont, Marianne Gamper, Mathias K Fehr
AIMS: Intrinsic sphincter deficiency (ISD) is a known risk factor for therapy failure after tension-free vaginal tape (TVT) insertion. The purpose of this study was to investigate if the severity of ISD alone or other factors such as urethral mobility and tape localization influence outcomes. METHODS: One hundred and nine women with urodynamically determined ISD, a TVT insertion, and a 6-month follow-up visit were included. Urethral length, mobility, and tape localization were evaluated by pelvic floor sonography...
January 31, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28139006/comparison-of-protocols-measuring-diffusion-and-partition-coefficients-in-the-stratum-corneum
#12
H Rothe, C Obringer, J Manwaring, C Avci, W Wargniez, J Eilstein, N Hewitt, R Cubberley, H Duplan, D Lange, C Jacques-Jamin, M Klaric, A Schepky, S Grégoire
Partition (K) and diffusion (D) coefficients are important to measure for the modelling of skin penetration of chemicals through the stratum corneum (SC). We compared the feasibility of three protocols for the testing of 50 chemicals in our main studies, using three cosmetics-relevant model chemicals with a wide range of logP values. Protocol 1: SC concentration-depth profile using tape-stripping (measures KSC/v and DSC /HSC(2) , where HSC is the SC thickness); Protocol 2A: incubation of isolated SC with chemical (direct measurement of KSC/v only) and Protocol 2B: diffusion through isolated SC mounted on a Franz cell (measures KSC/v and DSC /HSC(2) , and is based on Fick's laws)...
January 31, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28126662/on-chip-electrochemical-immunoassay-platform-for-specific-protein-biomarker-estimation-in-undiluted-serum-using-off-surface-membrane-matrix
#13
Sunil K Arya, Patthara Kongsuphol, Mi Kyoung Park
The manuscript presents a new biosensor platform using bioreceptors modified porous 2-dimensional (2D) membrane based off-surface matrix for on-chip electrochemical immunoassay. Antibody based bioreceptors modified 2D matrix of porous polycarbonate (PC) membrane with densely packed 20µm holes as off-surface matrix was incorporated in very close proximity of the sensor surface and integrated with fluidic system for reagent flow and incubation chamber. Covalent attachment of antibodies on 2D PC membrane based off-matrix was achieved using 4-fluoro-3-nitro-azidobenzene (FNAB) cross-linker...
May 15, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28105396/a-solution-doped-polymer-semiconductor-insulator-blend-for-thermoelectrics
#14
David Kiefer, Liyang Yu, Erik Fransson, Andrés Gómez, Daniel Primetzhofer, Aram Amassian, Mariano Campoy-Quiles, Christian Müller
Poly(ethylene oxide) is demonstrated to be a suitable matrix polymer for the solution-doped conjugated polymer poly(3-hexylthiophene). The polarity of the insulator combined with carefully chosen processing conditions permits the fabrication of tens of micrometer-thick films that feature a fine distribution of the F4TCNQ dopant:semiconductor complex. Changes in electrical conductivity from 0.1 to 0.3 S cm(-1) and Seebeck coefficient from 100 to 60 μV K(-1) upon addition of the insulator correlate with an increase in doping efficiency from 20% to 40% for heavily doped ternary blends...
January 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28074570/development-of-the-sbirt-checklist-for-observation-in-real-time-score
#15
Janice A Vendetti, Bonnie G McRee, Frances K Del Boca
BACKGROUND AND AIMS: Screening, Brief Intervention and Referral to Treatment (SBIRT) programs have been implemented widely in medical settings, with little attention focused on how well providers adhere to evidence-based service delivery in everyday practice. The purposes of this paper were to: (1) introduce a flexible, relatively simple methodology, the SBIRT Checklist for Observation in Real-time (SCORe), to assess adherence to evidence-based practice and provide preliminary evidence supporting its criterion validity; and (2) illustrate the feasibility and potential utility of the SCORe by analyzing observations of providers within four large-scale SBIRT programs in the United States...
February 2017: Addiction
https://www.readbyqxmd.com/read/28069155/communicating-with-patients-from-minority-backgrounds-individual-challenges-experienced-by-oncology-health-professionals
#16
Kaaren J Watts, Bettina Meiser, Elvira Zilliacus, Rajneesh Kaur, Mona Taouk, Afaf Girgis, Phyllis Butow, David Goldstein, Sandra Hale, Astrid Perry, Sanchia K Aranda, David W Kissane
PURPOSE: Oncology health professionals (HPs) are increasingly required to care for patients from minority backgrounds. Yet many HPs have not had formal training in how to communicate effectively in culturally diverse settings. More information is needed about the challenges that oncology HPs face in communicating with minority patients to inform the content of formal training programs. This qualitative study aimed to identify oncology nurses' and oncologists' individual experiences and challenges in communicating with patients from minority backgrounds...
February 2017: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
https://www.readbyqxmd.com/read/28008987/a-bio-enabled-maximally-mild-layer-by-layer-kapton-surface-modification-approach-for-the-fabrication-of-all-inkjet-printed-flexible-electronic-devices
#17
Yunnan Fang, Jimmy G D Hester, Wenjing Su, Justin H Chow, Suresh K Sitaraman, Manos M Tentzeris
A bio-enabled, environmentally-friendly, and maximally mild layer-by-layer approach has been developed to surface modify inherently hydrophobic Kapton HN substrates to allow for great printability of both water- and organic solvent-based inks thus facilitating the full-inkjet-printing of flexible electronic devices. Different from the traditional Kapton surface modification approaches which are structure-compromising and use harsh conditions to target, and oxidize and/or remove part of, the surface polyimide of Kapton, the present Kapton surface modification approach targeted the surface electric charges borne by its additive particles, and was not only the first to utilize environmentally-friendly clinical biomolecules to build up a thin film of protamine-heparin complex on Kapton, but also the first to be conducted under minimally destructive and maximally mild conditions...
December 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27998691/influence-of-the-skin-barrier-on-the-penetration-of-topically-applied-dexamethasone-probed-by-soft-x-ray-spectromicroscopy
#18
K Yamamoto, A Klossek, R Flesch, F Rancan, M Weigand, I Bykova, M Bechtel, S Ahlberg, A Vogt, U Blume-Peytavi, P Schrade, S Bachmann, S Hedtrich, M Schäfer-Korting, E Rühl
The penetration of dexamethasone into human skin ex vivo is reported. X-ray microscopy is used for label-free probing of the drug and quantification of the local drug concentration with a spatial resolution reaching 70±5 nm. This is accomplished by selective probing the dexamethasone by X-ray absorption. Varying the penetration time between 10 min and 1000 min provides detailed information on the penetration process. In addition, the stratum corneum has been damaged by tape-stripping in order to determine the importance of this barrier regarding temporally resolved drug penetration profiles...
December 17, 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27956654/adapting-and-evaluating-a-rapid-low-cost-method-to-enumerate-flies-in-the-household-setting
#19
Marlene K Wolfe, Holly N Dentz, Beryl Achando, MaryAnne Mureithi, Tim Wolfe, Clair Null, Amy J Pickering
Diarrhea is a leading cause of death among children under 5 years of age worldwide. Flies are important vectors of diarrheal pathogens in settings lacking networked sanitation services. There is no standardized method for measuring fly density in households; many methods are cumbersome and unvalidated. We adapted a rapid, low-cost fly enumeration technique previously developed for industrial settings, the Scudder fly grill, for field use in household settings. We evaluated its performance in comparison to a sticky tape fly trapping method at latrine and food preparation areas among households in rural Kenya...
February 8, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27924913/thermal-alternating-polymer-nanocomposite-tapnc-coating-designed-to-prevent-aerodynamic-insect-fouling
#20
Ilker S Bayer, K Ghokulla Krishnan, Robert Robison, Eric Loth, Douglas H Berry, Thomas E Farrell, Jeffrey D Crouch
Insect residue adhesion to moving surfaces such as turbine blades and aircraft not only causes surface contamination problems but also increases drag on these surfaces. Insect fouling during takeoff, climb and landing can result in increased drag and fuel consumption for aircraft with laminar-flow surfaces. Hence, certain topographical and chemical features of non-wettable surfaces need to be designed properly for preventing insect residue accumulation on surfaces. In this work, we developed a superhydrophobic coating that is able to maintain negligible levels of insect residue after 100 high speed (50 m/s) insect impact events produced in a wind tunnel...
December 7, 2016: Scientific Reports
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