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https://www.readbyqxmd.com/read/28350859/correlation-between-clinical-severity-and-different-non-invasive-measurements-of-carbon-monoxide-concentration-a-population-study
#1
Thomas Hullin, Jerome Aboab, Kristell Desseaux, Sylvie Chevret, Djillali Annane
OBJECTIVES: Carbon monoxide (CO) poisoning is a major concern in industrialized countries. Each year, thousands of victims, resulting in approximately 100 fatalities, are encountered in France. The diagnosis of CO poisoning is challenging; while carboxyhemoglobin (COHb) may be useful, it is a weak indicator of the severity of CO poisoning. This weak indicator may be a result of the delay between poisoning occurrence and the blood assay. Two apparatuses, CO oximeters and exhaled CO analyzers, now permit COHb to be determined outside hospitals...
2017: PloS One
https://www.readbyqxmd.com/read/28350836/perceived-psychosocial-stress-and-gestational-weight-gain-among-women-with-gestational-diabetes
#2
Ai Kubo, Assiamira Ferrara, Susan D Brown, Samantha F Ehrlich, Ai-Lin Tsai, Charles P Quesenberry, Yvonne Crites, Monique M Hedderson
Growing evidence links perceived stress-a potentially modifiable psychosocial risk factor-with health behaviors and obesity. Yet little is known about the relationship between stress during pregnancy and gestational weight gain, particularly among women with pregnancy complications. We conducted a cross-sectional analysis to examine associations between psychosocial stress during pregnancy and gestational weight gain among women with gestational diabetes. We used baseline data from the Gestational Diabetes's Effects on Moms (GEM) study: 1,353 women with gestational diabetes who delivered a term singleton within Kaiser Permanente Northern California were included...
2017: PloS One
https://www.readbyqxmd.com/read/28346049/adverse-childhood-experiences-among-veterinary-medical-students-a-multi-site-study
#3
Elizabeth B Strand, Jennifer Brandt, Kenita Rogers, Laurie Fonken, Ruthanne Chun, Peter Conlon, Linda Lord
This research explores Adverse Childhood Experiences (ACEs) among veterinary medical students across six academic institutions of veterinary medicine, and their relationship with depression, stress, and desire to become a veterinarian. Between April 1, 2016 and May 23, 2016, 1,118 veterinary medical students in all 4 years of the curriculum (39% response rate) completed an anonymous web-based questionnaire about ACEs, depression using the Center for Epidemiological Studies Depression scale (CESD), stress using the Perceived Stress Scale (PSS), and the age at which they wanted to become a veterinarian...
March 27, 2017: Journal of Veterinary Medical Education
https://www.readbyqxmd.com/read/28345851/high-resolution-adhesion-mapping-of-the-odd-even-effect-on-a-layer-by-layer-coated-biomaterial-by-atomic-force-microscopy
#4
Kirstin Casdorff, Tobias Keplinger, Herve Bellanger, Benjamin Michen, Silke Sch N, Ingo Burgert
The adhesion behavior of polyelectrolyte multilayers consisting of poly-(diallyldimethylammonium chloride), PDDA, and poly(styrene sulfonate), PSS, towards a silicon AFM tip was studied during their build-up on wood, a chemically heterogeneous, micrometer rough biomaterial and compared with a nanometer rough substrate, namely quartz. The Atomic Force Microscopy based force mapping approach generated high resolution topography-, and adhesion maps within the first bilayers, which point toward a homogeneous layer-by-layer build-up on the biomaterial surface, and therefore indicate an even charge distribution...
March 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28345040/a-highly-stretchable-transparent-and-conductive-polymer
#5
Yue Wang, Chenxin Zhu, Raphael Pfattner, Hongping Yan, Lihua Jin, Shucheng Chen, Francisco Molina-Lopez, Franziska Lissel, Jia Liu, Noelle I Rabiah, Zheng Chen, Jong Won Chung, Christian Linder, Michael F Toney, Boris Murmann, Zhenan Bao
Previous breakthroughs in stretchable electronics stem from strain engineering and nanocomposite approaches. Routes toward intrinsically stretchable molecular materials remain scarce but, if successful, will enable simpler fabrication processes, such as direct printing and coating, mechanically robust devices, and more intimate contact with objects. We report a highly stretchable conducting polymer, realized with a range of enhancers that serve a dual function: (i) they change morphology and (ii) they act as conductivity-enhancing dopants in poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)...
March 2017: Science Advances
https://www.readbyqxmd.com/read/28343346/molecularly-imprinted-polymer-prepared-with-polyhedral-oligomeric-silsesquioxane-through-reversible-addition-fragmentation-chain-transfer-polymerization
#6
Shu-Ping Gao, Xue Zhang, Li-Shun Zhang, Yan-Ping Huang, Zhao-Sheng Liu
Polyhedral oligomeric silsesquioxane (POSS) was utilized to prepare imprinted polymer through reversible addition-fragmentation chain transfer polymerization (RAFT) successfully. The imprinted polymer was made with a mixture of RAFT agent, 4-vinylpyridine (4-VP), POSS monomer [PSS-(1-propylmethacrylate)-heptaisobutyl substituted, MA 0702], and ethylene glycol dimethacrylate (EDMA), with ketoprofen (KET) as template. The influence of polymerization variables, the amount of RAFT agent and POSS monomer, the ratio of KET to 4-VP, and the ratio of 4-VP to EDMA, were investigated on the retention factor and imprinting effect...
March 25, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28342308/shape-selective-catalysis-and-surface-enhanced-raman-scattering-studies-using-ag-nanocubes-nanospheres-and-aggregated-anisotropic-nanostructures
#7
Subrata Kundu, Wei Dai, Yunyun Chen, Lian Ma, Yuan Yue, Alexander M Sinyukov, Hong Liang
Three morphologies of silver nanoparticles (Ag NPs) such as nanocubes, aggregated anisotropic Ag NPs, and nanospheres were prepared using polystyrene sulfonate (PSS) and citrate as stabilizing agents utilizing a simple wet-chemical and microwave heating route respectively. Ag nanocubes were prepared within one min through microwave heating whereas anisotropic Ag NPs and spherical Ag NPs via 5 and 30min of normal stirring at room temperature (RT) respectively. The shape effect of three different morphologies of Ag NPs were examined in catalysis reaction and in surface enhanced Raman scattering (SERS) studies...
March 16, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28340765/detection-of-trace-levels-of-organophosphate-pesticides-using-an-electronic-tongue-based-on-graphene-hybrid-nanocomposites
#8
Murilo H M Facure, Luiza A Mercante, Luiz H C Mattoso, Daniel S Correa
Organophosphate (OP) compounds impose significant strains on public health, environmental/food safety and homeland security, once they have been widely used as pesticides and insecticides and also display potential to be employed as chemical warfare agents by terrorists. In this context, the development of sensitive and reliable chemical sensors that would allow in-situ measurements of such contaminants is highly pursued. Here we report on a free-enzyme impedimetric electronic tongue (e-tongue) used in the analysis of organophosphate pesticides comprising four sensing units based on graphene hybrid nanocomposites...
May 15, 2017: Talanta
https://www.readbyqxmd.com/read/28339625/cystatin-s-a-candidate-biomarker-for-severity-of-submandibular-gland-involvement-in-sj%C3%A3-gren-s-syndrome
#9
Daniela Martini, Alessia Gallo, Serena Vella, Francesca Sernissi, Antonella Cecchettini, Nicoletta Luciano, Enza Polizzi, Pier Giulio Conaldi, Marta Mosca, Chiara Baldini
Objectives.: Salivary cystatin S is a defence protein mainly produced by submandibular glands and involved in innate oral immunity. This study aimed to verify whether cystatin S was diversely expressed in different disease subsets of primary Sjogren's syndrome (pSS) patients, defined on the basis of salivary flow [unstimulated salivary flow rate (USFR)], minor salivary gland (MSG) focus score and submandibular gland ultrasonography abnormalities. We also evaluated miR-126 and miR-335-5p expression in MSG biopsies to verify whether an aberrant regulation of cystatin S at the glandular level may influence its salivary expression...
February 16, 2017: Rheumatology
https://www.readbyqxmd.com/read/28339495/microrna-expression-profiles-identify-disease-specific-alterations-in-systemic-lupus-erythematosus-and-primary-sj%C3%A3-gren-s-syndrome
#10
Ji-Qing Chen, Gábor Papp, Szilárd Póliska, Krisztina Szabó, Tünde Tarr, Bálint László Bálint, Péter Szodoray, Margit Zeher
The discovery of microRNAs (miRNAs) and their critical role in genetic control opened new avenues in understanding of various biological processes including immune cell lineage commitment, differentiation, proliferation and apoptosis. However, a given miRNA may have hundreds of different mRNA targets and a target might be regulated by multiple miRNAs, thus the characterisation of dysregulated miRNA expression profiles could give a better insight into the development of immunological disturbances in autoimmune diseases...
2017: PloS One
https://www.readbyqxmd.com/read/28338291/versatile-polymer-nanoparticles-as-two-photon-triggered-photosensitizers-for-simultaneous-cellular-deep-tissue-imaging-and-photodynamic-therapy
#11
Liang Guo, Jiechao Ge, Qian Liu, Qingyan Jia, Hongyan Zhang, Weimin Liu, Guangle Niu, Sha Liu, Jianru Gong, Steffen Hackbarth, Pengfei Wang
Clinical applications of current photodynamic therapy (PDT) photosensitizers (PSs) are often limited by their absorption in the UV-vis range that possesses limited tissue penetration ability, leading to ineffective therapeutic response for deep-seated tumors. Alternatively, two-photon excited PS (TPE-PS) using NIR light triggered is one the most promising candidates for PDT improvement. Herein, multimodal polymer nanoparticles (PNPs) from polythiophene derivative as two-photon fluorescence imaging as well as two-photon-excited PDT agent are developed...
March 24, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28338088/functional-solid-additive-modified-pedot-pss-as-an-anode-buffer-layer-for-enhanced-photovoltaic-performance-and-stability-in-polymer-solar-cells
#12
Binrui Xu, Sai-Anand Gopalan, Anantha-Iyengar Gopalan, Nallal Muthuchamy, Kwang-Pill Lee, Jae-Sung Lee, Yu Jiang, Sang-Won Lee, Sae-Wan Kim, Ju-Seong Kim, Hyun-Min Jeong, Jin-Beon Kwon, Jin-Hyuk Bae, Shin-Won Kang
Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is most commonly used as an anode buffer layer in bulk-heterojunction (BHJ) polymer solar cells (PSCs). However, its hygroscopic and acidic nature contributes to the insufficient electrical conductivity, air stability and restricted photovoltaic (PV) performance for the fabricated PSCs. In this study, a new multifunctional additive, 2,3-dihydroxypyridine (DOH), has been used in the PEDOT: PSS buffer layer to obtain modified properties for PEDOT: PSS@DOH and achieve high PV performances...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337967/one-year-in-review-2017-primary-sj%C3%A3-gren-s-syndrome
#13
REVIEW
Francesco Ferro, Elisa Marcucci, Martina Orlandi, Chiara Baldini, Elena Bartoloni-Bocci
Primary Sjögren's syndrome (pSS) is a complex and heterogeneous disease. Last year, a great deal of basic and clinical research was carried out in pSS. Following the previous reviews of this publishing series, we will herewith provide a critical digest of the most recent literature on pSS pathogenesis, clinical manifestations and treatment. More specifically, we will focus on the heterogeneity of the disease, on the underlying pathogenetic pathways and on the possible new targeted treatments on the horizon...
March 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28335536/doa-estimation-based-on-real-valued-cross-correlation-matrix-of-coprime-arrays
#14
Jianfeng Li, Feng Wang, Defu Jiang
A fast direction of arrival (DOA) estimation method using a real-valued cross-correlation matrix (CCM) of coprime subarrays is proposed. Firstly, real-valued CCM with extended aperture is constructed to obtain the signal subspaces corresponding to the two subarrays. By analysing the relationship between the two subspaces, DOA estimations from the two subarrays are simultaneously obtained with automatic pairing. Finally, unique DOA is determined based on the common results from the two subarrays. Compared to partial spectral search (PSS) method and estimation of signal parameter via rotational invariance (ESPRIT) based method for coprime arrays, the proposed algorithm has lower complexity but achieves better DOA estimation performance and handles more sources...
March 20, 2017: Sensors
https://www.readbyqxmd.com/read/28335311/a-study-of-inverted-type-perovskite-solar-cells-with-various-composition-ratios-of-fapbi%C3%A2-1-x-mapbbr%C3%A2-x
#15
Lung-Chien Chen, Zong-Liang Tseng, Jun-Kai Huang
This work presents mixed (FAPbI₃)1-x(MAPbBr₃)x perovskite films with various composition ratios, x (x = 0-1), which are formed using the spin coating method. The structural, optical, and electronic behaviors of the mixed (FAPbI₃)1-x(MAPbBr₃)x perovskite films are discussed. A device with structure glass/indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS)/mixed perovskite/C60/BCP/Ag was fabricated. The mixed perovskite film was an active light-harvesting layer. PEDOT: PSS was a hole transporting layer between the ITO and perovskite...
October 13, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28332402/small-molecule-polymer-composite-hole-transporting-layer-for-highly-efficient-and-stable-perovskite-solar-cells
#16
Jinmiao Wang, Zhao-Kui Wang, Meng Li, Ke-Hao Hu, Yingguo Yang, Yun Hu, Xingyu Gao, Liang-Sheng Liao
Effective and stable hole-transporting materials (HTMs) are necessary for obtaining excellent planar perovskite solar cells (PSCs). Herein, we reported a solution-processed composite HTM consisting of a polymer ploy(3,4-ethylene-dioxythiophene):ploystyrenesulfonate (PEDOT:PSS) and a small molecule copper phthalocyanine-3,4',4'',4'''-tetra-sulfonated acid tetra sodium salt (TS-CuPc) with optimized doping ratios. The composite HTM is crucial on account of not only enhancing the hole transport and extraction, but also improving the perovskite crystallization...
March 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28330998/comparison-of-performance-of-the-2016-acr-eular-classification-criteria-for-primary-sj%C3%A3-gren-s-syndrome-with-other-sets-of-criteria-in-japanese-patients
#17
Hiroto Tsuboi, Shinya Hagiwara, Hiromitsu Asashima, Hiroyuki Takahashi, Tomoya Hirota, Hisashi Noma, Hisanori Umehara, Atsushi Kawakami, Hideki Nakamura, Hajime Sano, Kazuo Tsubota, Yoko Ogawa, Etsuko Takamura, Ichiro Saito, Hiroko Inoue, Seiji Nakamura, Masafumi Moriyama, Tsutomu Takeuchi, Yoshiya Tanaka, Shintaro Hirata, Tsuneyo Mimori, Isao Matsumoto, Takayuki Sumida
OBJECTIVES: To compare the performance of the new 2016 American College of Rheumatology (ACR)-European League Against Rheumatism (EULAR) classification criteria for primary Sjögren's syndrome (SS) with 1999 revised Japanese Ministry of Health criteria for diagnosis of SS (JPN), 2002 American-European Consensus Group classification criteria for SS (AECG) and 2012 ACR classification criteria for SS (ACR) in Japanese patients. METHODS: The study subjects were 499 patients with primary SS (pSS) or suspected pSS who were followed up in June 2012 at 10 hospitals in Japan...
March 22, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28325175/developing-a-peer-support-protocol-for-improving-veterans-engagement-to-computer-delivered-cognitive-behavioural-therapy
#18
John M Ray, Lakiesha L Kemp, Amanda Hubbard, Michael A Cucciare
BACKGROUND: Computer-delivered cognitive behavioural therapy (cCBT) is an effective alternative to provider-delivered treatment for depression and anxiety, but high attrition poses a significant challenge to its use. Peer support is a feasible approach to improving cCBT engagement, but less is known about its acceptability among Veterans. AIMS: To obtain feedback from Veterans (n = 24) with depression and/or anxiety on their preferences for (a) activities of Veterans Administration Peer Support Specialists (VA PSS) in helping Veterans use Moving Forward, a cCBT-based protocol developed by VA, and (b) methods for delivering support to Veterans using this programme...
March 22, 2017: Behavioural and Cognitive Psychotherapy
https://www.readbyqxmd.com/read/28324200/prevalence-and-characterization-of-non-sicca-onset-primary-sj%C3%A3-gren-syndrome-with-interstitial-lung-involvement
#19
Manfredi Andreina, Sebastiani Marco, Cerri Stefania, Cassone Giulia, Bellini Pietrantonio, Della Casa Giovanni, Luppi Fabrizio, Ferri Clodoveo
Primary Sjögren syndrome (pSS)-related interstitial lung disease (ILD) involved about 10-20% of patients. In 20% of cases, ILD can be diagnosed before pSS; anyway, few studies have investigated the frequency of ILD as the first clinically relevant manifestation of pSS, generally referred to retrospective studies. Aim of our prospective study was to describe prevalence, clinical, serological, and instrumental features of non-sicca onset pSS patients with interstitial lung involvement. During a period of 48 months, all consecutive patients diagnosed as pSS were enrolled...
March 21, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28323402/single-particle-observation-of-sv40-vp1-polyanion-induced-assembly-shows-that-substrate-size-and-structure-modulate-capsid-geometry
#20
Chenglei Li, Andrew R Kneller, Stephen C Jacobson, Adam Zlotnick
Simian virus 40 capsid protein (VP1) is a unique system for studying substrate-dependent assembly of a nanoparticle. Here, we investigate a simplest case of this system where twelve VP1 pentamers and a single polyanion, e.g. RNA, form a T=1 particle. To test the roles of polyanion substrate length and structure during assembly, we characterized the assembly products with size exclusion chromatography, transmission electron microscopy, and single-particle resistive-pulse sensing. We found that a 500 nt RNA has the optimal length and structure for assembly of uniform T=1 particles...
March 21, 2017: ACS Chemical Biology
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