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https://www.readbyqxmd.com/read/28344599/does-ultrasound-measurement-improve-the-accuracy-of-electronic-brachytherapy-in-the-treatment-of-superficial-non-melanomatous-skin-cancer
#1
Uma Goyal, Junhan Pan, Haiyan Cui, Baldassarre Stea
PURPOSE: Electronic brachytherapy (eBT) is a form of contact radiation therapy used for thin superficial non-melanomatous skin cancers (NMSCs). An accurate measurement of diameter and depth is important for eBT treatment planning. Therefore, we compared clinical measurements by an experienced physician to measurements obtained using ultrasound (US), an objective imaging modality, in order to determine if clinical measurements were accurate enough for adequate NMSC treatment. MATERIAL AND METHODS: Eighteen patients with 20 biopsy-proven NMSCs first had a clinical examination and then an US evaluation prior to starting eBT...
February 2017: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/28342623/mother-newborn-health-indicators-in-possible-victims-of-gender-based-violence-during-pregnancy
#2
Juan Miguel Martínez-Galiano
BACKGROUND: Pregnancy increases the risk of gender-based violence, considered an underdiagnosed public health problem. OBJECTIVE: To determine the association between the situation of possible gender-based violence in the pregnant woman and variables related to pregnancy, labor, puerperium, and newborn health. DESIGN: An observational multicenter study. SETTINGS: Three Spanish hospitals during 2015. PARTICIPANTS: 141 pregnant women in which information is collected sociodemographic variables and data related to pregnancy, labor, and puerperium were gathered by interview and from clinical records...
April 2017: Applied Nursing Research: ANR
https://www.readbyqxmd.com/read/28338860/calculation-of-skin-dose-due-to-beta-contamination-using-the-new-quantity-of-the-icrp-116-the-local-skin-dose
#3
L Bourgois, S Ménard, N Comte
Values of the new protection quantity 'Local Skin Dose' LSD, introduced by the International Commission on Radiological Protection (ICRP) Publication 116, were calculated for 134 β- or β+ emitting radionuclides, using the Monte Carlo code MCNP6. Two types of source geometry are considered: a point source and disc-type surface contamination (the source is placed in contact with the skin). This new protection quantity is compared with the operational quantity H'(0.07,0°), leading us to conclude that, in accordance with the rules of the ICRP, the operational quantity over-estimates the protection quantity to a reasonable extent, except in very rare cases for very low average beta energies...
March 1, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28338540/occupational-contact-dermatitis-in-north-american-print-machine-operators-referred-for-patch-testing-retrospective-analysis-of-cross-sectional-data-from-the-north-american-contact-dermatitis-group-1998-to-2014
#4
Erin M Warshaw, Solveig L Hagen, Donald V Belsito, Joel G DeKoven, Howard I Maibach, C G Toby Mathias, Kathryn A Zug, Denis Sasseville, Matthew J Zirwas, Joseph F Fowler, Anthony F Fransway, Vincent A DeLeo, James G Marks, Melanie D Pratt, James S Taylor
BACKGROUND: Little is known about the epidemiology of contact dermatitis (CD) in print machine operators (PMOs). OBJECTIVE: The aims of this study were to estimate the prevalence of CD and characterize clinically relevant and occupationally related allergens among PMOs undergoing patch testing. METHODS: This was a retrospective cross-sectional analysis of the North American Contact Dermatitis Group data from 1998 to 2014. RESULTS: Of 39,332 patch-tested patients, 132 (0...
March 23, 2017: Dermatitis
https://www.readbyqxmd.com/read/28338219/human-orf-complicated-by-epidermolysis-bullosa-acquisita
#5
E Zuelgaray, C Salle de Chou, J Gottlieb, M Battistella, M D Vignon-Pennamen, M Bagot, F Guibal, J D Bouaziz
Orf is a DNA parapoxvirus transmitted to humans by contact with infected goats and sheep. Many complications have been reported after Orf infection including erythema multiforme. A few cases of auto-immune bullous dermatosis complicating Orf disease have been reported to date, usually characterized by tense blisters eruptions with or without mucosal involvement, linear deposition of C3, IgG and/or IgA along the basement membrane and negativity of indirect immunofluorescence analysis and ELISA assays (performed in 4 of 11 reported cases) against target antigens of bullous pemphigoid, mucous membrane pemphigoid or epidermolysis bullosa acquisita, except one case of mucosal pemphigoid with antilaminin-332 antibodies...
March 24, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28338055/fully-printable-strain-engineered-electronic-wrap-for-customizable-soft-electronics
#6
Junghwan Byun, Byeongmoon Lee, Eunho Oh, Hyunjong Kim, Sangwoo Kim, Seunghwan Lee, Yongtaek Hong
Rapid growth of stretchable electronics stimulates broad uses in multidisciplinary fields as well as industrial applications. However, existing technologies are unsuitable for implementing versatile applications involving adaptable system design and functions in a cost/time-effective way because of vacuum-conditioned, lithographically-predefined processes. Here, we present a methodology for a fully printable, strain-engineered electronic wrap as a universal strategy which makes it more feasible to implement various stretchable electronic systems with customizable layouts and functions...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337561/optimization-of-ultraviolet-ozone-treatment-process-for-improvement-of-polycaprolactone-pcl-microcarrier-performance
#7
Nurhusna Samsudin, Yumi Zuhanis Has-Yun Hashim, Mohd Azmir Arifin, Maizirwan Mel, Hamzah Mohd Salleh, Iis Sopyan, Dzun Noraini Jimat
Growing cells on microcarriers may have overcome the limitation of conventional cell culture system. However, the surface functionality of certain polymeric microcarriers for effective cell attachment and growth remains a challenge. Polycaprolactone (PCL), a biodegradable polymer has received considerable attention due to its good mechanical properties and degradation rate. The drawback is the non-polar hydrocarbon moiety which makes it not readily suitable for cell attachment. This report concerns the modification of PCL microcarrier surface (introduction of functional oxygen groups) using ultraviolet irradiation and ozone (UV/O3) system and investigation of the effects of ozone concentration, the amount of PCL and exposure time; where the optimum conditions were found to be at 60,110...
March 23, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28336503/tweet-for-behavior-change-using-social-media-for-the-dissemination-of-public-health-messages
#8
Aisling Gough, Ruth F Hunter, Oluwaseun Ajao, Anna Jurek, Gary McKeown, Jun Hong, Eimear Barrett, Marbeth Ferguson, Gerry McElwee, Miriam McCarthy, Frank Kee
BACKGROUND: Social media public health campaigns have the advantage of tailored messaging at low cost and large reach, but little is known about what would determine their feasibility as tools for inducing attitude and behavior change. OBJECTIVE: The aim of this study was to test the feasibility of designing, implementing, and evaluating a social media-enabled intervention for skin cancer prevention. METHODS: A quasi-experimental feasibility study used social media (Twitter) to disseminate different message "frames" related to care in the sun and cancer prevention...
March 23, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28335342/innovative-self-cleaning-and-biocompatible-polyester-textiles-nano-decorated-with-fe-n-doped-titanium-dioxide
#9
Ionela Cristina Nica, Miruna Silvia Stan, Anca Dinischiotu, Marcela Popa, Mariana Carmen Chifiriuc, Veronica Lazar, Gratiela G Pircalabioru, Eugenia Bezirtzoglou, Ovidiu G Iordache, Elena Varzaru, Iuliana Dumitrescu, Marcel Feder, Florin Vasiliu, Ionel Mercioniu, Lucian Diamandescu
The development of innovative technologies to modify natural textiles holds an important impact for medical applications, including the prevention of contamination with microorganisms, particularly in the hospital environment. In our study, Fe and N co-doped TiO₂ nanoparticles have been obtained via the hydrothermal route, at moderate temperature, followed by short thermal annealing at 400 °C. These particles were used to impregnate polyester (PES) materials which have been evaluated for their morphology, photocatalytic performance, antimicrobial activity against bacterial reference strains, and in vitro biocompatibility on human skin fibroblasts...
November 15, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335296/controlled-mechanical-cracking-of-metal-films-deposited-on-polydimethylsiloxane-pdms
#10
Andreas Polywka, Luca Stegers, Oliver Krauledat, Thomas Riedl, Timo Jakob, Patrick Görrn
Stretchable large area electronics conform to arbitrarily-shaped 3D surfaces and enables comfortable contact to the human skin and other biological tissue. There are approaches allowing for large area thin films to be stretched by tens of percent without cracking. The approach presented here does not prevent cracking, rather it aims to precisely control the crack positions and their orientation. For this purpose, the polydimethylsiloxane (PDMS) is hardened by exposure to ultraviolet radiation (172 nm) through an exposure mask...
September 9, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335284/graphene-enabled-electrodes-for-electrocardiogram-monitoring
#11
Numan Celik, Nadarajah Manivannan, Andrew Strudwick, Wamadeva Balachandran
The unique parameters of graphene (GN)-notably its considerable electron mobility, high surface area, and electrical conductivity-are bringing extensive attention into the wearable technologies. This work presents a novel graphene-based electrode for acquisition of electrocardiogram (ECG). The proposed electrode was fabricated by coating GN on top of a metallic layer of a Ag/AgCl electrode using a chemical vapour deposition (CVD) technique. To investigate the performance of the fabricated GN-based electrode, two types of electrodes were fabricated with different sizes to conduct the signal qualities and the skin-electrode contact impedance measurements...
August 23, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28334762/missense-uros-mutations-causing-congenital-erythropoietic-porphyria-reduce-uros-homeostasis-that-can-be-rescued-by-proteasome-inhibition
#12
Jean-Marc Blouin, Ganeko Bernardo-Seisdedos, Emma Sasso, Julie Esteve, Cécile Ged, Magalie Lalanne, Arantza Sanz-Parra, Pedro Urquiza, Hubert de Verneuil, Oscar Millet, Emmanuel Richard
Congenital erythropoietic porphyria (CEP) is an inborn error of heme biosynthesis characterized by uroporphyrinogen III synthase (UROS) deficiency resulting in deleterious porphyrin accumulation in blood cells responsible for hemolytic anemia and cutaneous photosensitivity. We analyzed here the molecular basis of UROS impairment associated with twenty nine UROS missense mutations actually described in CEP patients. Using a computational and biophysical joint approach we predicted that most disease-causing mutations would affect UROS folding and stability...
February 21, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28332823/from-dual-mode-triboelectric-nanogenerator-to-smart-tactile-sensor-a-multiplexing-design
#13
Tao Li, Jingdian Zou, Fei Xing, Meng Zhang, Xia Cao, Ning Wang, Zhong Lin Wang
Triboelectric nanogenerators (TENGs) can be applied for the next generation of artificial intelligent products, where skin-like tactile sensing advances the ability of robotics to feel and interpret environment. In this paper, a flexible and thin tactile sensor was developed on the basis of dual-mode TENGs. The effective transduction of touch and pressure stimulus into independent and interpretable electrical signals permits the instantaneous sensing of location and pressure with a plane resolution of 2 mm, a high-pressure-sensing sensitivity up to 28 mV·N(-1), and a linear pressure detection ranging from 40 to 140 N...
March 23, 2017: ACS Nano
https://www.readbyqxmd.com/read/28330528/determining-the-residual-characteristics-of-alkylphenols-arsenic-and-lead-as-well-as-assessing-the-exposures-of-1-4-dioxane-from-household-food-detergents
#14
Wan-Ting Lin, Wun-Ling Chen, Wei-Chih Cheng, Hui-Chuan Chang, Shih-Wei Tsai
Food detergents are commonly used in households. The main components of detergents include surfactants and water. It has been found that certain compounds, which may cause health concerns, appear in food detergents, such as alkylphenols, arsenic, and lead. After applying food detergents is when people may be exposed to various levels of these chemicals when there are residues. In this study, the Taguchi experimental design was performed to determine the possible factors that might affect the residual characteristics of food detergent on dishware, fruits, and vegetables...
February 22, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28329603/job-recruitment
#15
University Of California Davis School Of Medicine
The University of California Davis, School of Medicine, Department of Dermatology is recruiting for a full-time position at the Associate or Full Professor level in the Clinical X Series or Health Sciences Clinical Professor (HSCP) Series. The successful candidate is nominated to be the holder of the Frederick G. Novy, Jr. M.D Endowed Professorship. Appointees to the ClinX series are expected to conduct independent research. Both series require significant participation in teaching and University/public service...
October 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329568/localized-cutaneous-argyria-report-of-two-patients-and-literature-review
#16
Bryce David Beutler, Robert A Lee, Philip R Cohen
BackgroundLocalized cutaneous argyria is a rare skin condition caused by direct contact with silver or silver particles. It presents as asymptomatic gray or blue-gray macules that appear similar to blue nevi. Histologic features include brown-colored or black-colored silver granules in the basement membrane and dermis, most commonly surrounding eccrine glands, elastic fibers, and collagen fibrils. The condition is most frequently observed in individuals who are regularly exposed to small silver particles, such as silversmiths and welders...
November 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329062/comparison-of-demographic-and-photobiological-features-of-chronic-actinic-dermatitis-in-patients-with-lighter-vs-darker-skin-types
#17
Ki-Wei Tan, Ann K Haylett, Tsui C Ling, Lesley E Rhodes
Importance: Chronic actinic dermatitis (CAD) is classically described in older, white men, although increasing reports describe younger patients with darker skin types, particularly South Asians. Photocontact allergy occurs in CAD but is less studied than contact allergy in this exquisitely photosensitive condition. Objective: To evaluate for differences in demographic and photobiological features between persons with darker and lighter skin types who have CAD. Design, Setting, and Participants: This retrospective review included 70 consecutive adult patients (≥18 years) undergoing investigation for photosensitivity who were diagnosed with CAD from November 1, 2000, through August 31, 2015, at the specialist Photobiology Unit of a tertiary academic referral center...
March 22, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28328819/prevalence-and-risk-factors-of-contact-dermatitis-among-clothing-manufacturing-employees-in-beijing-a-cross-sectional-study
#18
Yu-Xin Chen, Hai-Yan Cheng, Lin-Feng Li
Little is known about the epidemiology of contact dermatitis (CD) in the Chinese clothing industry. This study aimed to investigate the prevalence and some risk factors of contact dermatitis among clothing manufacturing employees in Beijing.This cross-sectional study was conducted by interview using self-administered questionnaires and skin examination between May and August in 2016. Five-hundred twenty-nine employees who had worked at sewing, ironing, and as managers at 12 clothing manufacturing factories were studied...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28326998/effects-of-organizational-safety-practices-and-perceived-safety-climate-on-ppe-usage-engineering-controls-and-adverse-events-involving-liquid-antineoplastic-drugs-among-nurses
#19
David M DeJoy, Todd D Smith, Henok Woldu, Mari-Amanda Dyal, Andrea L Steege, James M Boiano
PURPOSE: Antineoplastic drugs pose risks to the healthcare workers who handle them. This fact notwithstanding, adherence to safe handing guidelines remains inconsistent and often poor. This study examined the effects of pertinent organizational safety practices and perceived safety climate on the use of personal protective equipment, engineering controls, and adverse events (spill/leak or skin contact) involving liquid antineoplastic drugs Method: Data for this study came from the 2011 National Institute for Occupational Safety and Health (NIOSH) Health and Safety Practices Survey of Healthcare Workers which included a sample of approximately 1,800 nurses who had administered liquid antineoplastic drugs during the past seven days...
March 22, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28326907/skin-sensitizers-in-cosmetics-and-beyond-potential-multiple-mechanisms-of-action-and-importance-of-t-cell-assays-for-in-vitro-screening
#20
Stanislav Vukmanović, Nakissa Sadrieh
Allergic contact dermatitis (ACD) is a delayed-type hypersensitivity (DTH) reaction induced by repeated contact with sensitizers. The ability of a chemical to act as a sensitizer has most frequently been tested in animals. As the use of animals for these purposes is gradually and globally being phased out, there is a need for reliable in vitro surrogate assays. Currently proposed in vitro assays are designed to test four key events of the adverse outcome pathway (AOP) involving covalent modification of self-proteins by sensitizers (haptenation) and presentation of new antigens (hapten/carrier complexes) to the immune system...
March 22, 2017: Critical Reviews in Toxicology
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