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https://www.readbyqxmd.com/read/29785801/gold-surface-plasmon-crystal-structure-based-on-polystyrene-template-for-biosensor-application
#1
Min-Zhuo Cheng, Jing Zhang, Dequan Bao, Xiwei Huang
In this communication, we assembled ordered polystyrene (PS) microsphere array as a template with the drop-coating method, and the oxygen plasma was used to etch the template to adjust the spacing between the PS microspheres. Nano-triangular gold array and silver Nano-pyramid array were obtained by ion beam sputtering to deposit precious metal gold and silver. We observed the surface morphology of Au and Au/Ag composite films by scanning electron microscope and characterized the films by X-ray diffraction and Ultraviolet/visible light spectrophotometer...
May 21, 2018: Electrophoresis
https://www.readbyqxmd.com/read/29785159/assessment-of-the-quality-of-life-and-performance-status-in-patients-with-oral-submucous-fibrosis-in-central-india
#2
Revant H Chole, Ranjitkumar Patil
Background and aims: Measuring quality of life in patients with oral submucous fibrosis is of utmost importance in assessing treatment outcomes. This study examined the impact of oral submucous fibrosis and its treatment on the quality of life and performance status of persons with oral submucous fibrosis. Methods: Quality of life was measured in patients with oral submucous fibrosis using the European Organization for Research and Treatment of Cancer Quality of Life head and neck 35 Questionnaire (EORTC QLQ-C35); performance status was measured by Performance Status Scale for Head and Neck Cancer Patients (PSS-HN), at four points in time: baseline, one month, two months and three months after start of treatment...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29783043/developmental-changes-in-the-perception-of-visuotactile-simultaneity
#3
Yi-Chuan Chen, Terri L Lewis, David I Shore, Charles Spence, Daphne Maurer
A simultaneity judgment (SJ) task was used to measure the developmental trajectory of visuotactile simultaneity perception in children (aged 7, 9, 11, and 13 years) and adults. Participants were presented with a visual flash in the center of a computer monitor and a tap on their right index finger (located 20° below the flash) with 13 possible stimulus onset asynchronies (SOAs). Participants reported whether the flash and tap were presented at the same time. Compared with the adult group, children aged 7 and 9 years made more simultaneous responses when the tap led by more than 300 ms and when the flash led by more than 200 ms, whereas they made fewer simultaneous responses at the 0 ms SOA...
May 18, 2018: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/29782325/early-emotional-attention-is-impacted-in-alzheimer-s-disease-an-eye-tracking-study
#4
Jessica Bourgin, Nathalie Guyader, Alan Chauvin, Alexandra Juphard, Mathilde Sauvée, Olivier Moreaud, Laetitia Silvert, Pascal Hot
Emotional deficits have been repetitively reported in Alzheimer's disease (AD) without clearly identifying how emotional processing is impaired in this pathology. This paper describes an investigation of early emotional processing, as measured by the effects of emotional visual stimuli on a saccadic task involving both pro (PS) and anti (AS) saccades. Sixteen patients with AD and 25 age-matched healthy controls were eye-tracked while they had to quickly move their gaze toward a positive, negative, or neutral image presented on a computer screen (in the PS condition) or away from the image (in the AS condition)...
May 16, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29781623/the-response-of-a-permanently-charged-polyelectrolyte-brush-to-external-ions-the-aspects-of-structure-and-dynamics
#5
Bintao Zhao, Guangcui Yuan, Xiao Chu, Jingfa Yang, Jiang Zhao
Structure and dynamics inside permanently charged polyelectrolyte brushes, sodium polystyrene sulfonate brushes (NaPSS), during their response to the introduction of external ions (NaCl) are investigated by neutron reflectivity and dielectric spectroscopy. Neutron reflectivity measurements show that the segmental density of the inner part of the brushes decreases and that of the outer part increases when the salt level is tuned from the salt-free condition to a moderate level (<10-2 M) - the brushes swell further compared with the salt-free condition...
May 21, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29779574/cardiac-disease-induced-ptsd-and-fear-of-illness-progression-capturing-the-unique-nature-of-disease-related-ptsd
#6
Keren Fait, Noa Vilchinsky, Rachel Dekel, Nitza Levi, Hanoch Hod, Shlomi Matetzky
According to Edmondson's Enduring Somatic Threat (EST) Model of PTSD Due to Acute Life-Threatening Medical Events, the nature of PTSD in the context of illness may differ from the nature of "traditional" PTSD in that it includes future-oriented alongside past-related intrusive thoughts. Yet almost no empirical studies to date have assessed the putative future-oriented quality of cardiac-disease-induced PTSD (CDI-PTSD). In the current study, we assessed the hypothesized associations between CDI-PTSD and fear of illness progression (FoP) - a novel theoretical conceptualization of patients' future-related anxieties...
May 16, 2018: General Hospital Psychiatry
https://www.readbyqxmd.com/read/29776626/insomnia-symptoms-and-their-association-with-workplace-productivity-cross-sectional-and-pre-post-intervention-analyses-from-a-large-multinational-manufacturing-company
#7
Colin A Espie, Brent Pawlecki, Dickon Waterfield, Kit Fitton, Michael Radocchia, Annemarie I Luik
BACKGROUND: Symptoms of insomnia are common and might impact work productivity. We investigated the relationship between insomnia symptoms and workplace productivity in a global manufacturing company. METHODS: Within an uncontrolled, cross-sectional study, employees from a US-based company were invited to participate in an online evaluation comprising the Sleep Condition Indicator (SCI) measuring symptoms of insomnia (high score indicating better sleep), 2 items of the Work Productivity and Impairment Index (WPAI) measuring 'presenteeism' and 'absenteeism' (high score indicating loss of work productivity) and 1 item of the Perceived Stress Scale (PSS) from January 2015 onwards...
June 2018: Sleep Health
https://www.readbyqxmd.com/read/29775276/fully-printed-organic-inorganic-nanocomposites-for-flexible-thermoelectric-applications
#8
Canlin Ou, Abhijeet Laxman Sangle, Anuja Datta, Qingshen Jing, Tommaso Busolo, Thomas Chalklen, Vijay Narayan, Sohini Kar-Narayan
Thermoelectric materials, capable of interconverting heat and electricity, are attractive for applications in thermal energy harvesting as a means to power wireless sensors, wearable devices and portable electronics. However, traditional inorganic thermoelectric materials pose significant challenges due to high cost, toxicity, scarcity, as well as brittleness particularly when it comes to applications requiring flexibility. Here, we investigate organic-inorganic nanocomposites that have been developed from bespoke inks which are printed via an aerosol jet printing method onto flexible substrates...
May 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29774066/caveolae-mediated-mesenchymal-stem-cell-labelling-by-pss-coated-plga-pfob-nano-contrast-agent-for-mri
#9
Hieu Vu Quang, Chi-Chih Chang, Ping Song, Ellen-Margrethe Hauge, Jørgen Kjems
Rationale: Non-invasive tracking of transplanted cells is critical in evaluating delivery, migration and prognosis of cell therapies. Methods: We formulated a nano-contrast agent consisting of a perfluorooctylbromide (PFOB) core within a shell of poly (lactic-co-glycolic acid) (PLGA) followed by a coat of polystyrene sulfonate (PSS) for 19 F MRI. The nano-contrast agent (PSS-NP) was characterised by DLS and the uptake efficiency of the nano-contrast agent (PSS-NP) was tested using flow cytometry, in vitro MRI and confocal microscopy...
2018: Theranostics
https://www.readbyqxmd.com/read/29772662/high-performance-of-supercapacitor-from-pedot-pss-electrode-and-redox-iodide-ion-electrolyte
#10
Xing Gao, Lei Zu, Xiaomin Cai, Ce Li, Huiqin Lian, Yang Liu, Xiaodong Wang, Xiuguo Cui
Insufficient energy density and poor cyclic stability is still challenge for conductive polymer-based supercapacitor. Herein, high performance electrochemical system has been assembled by combining poly (3,4-ethylenedioxythiophene) (PEDOT):poly (styrene sulfonate) (PSS) redox electrode and potassium iodide redox electrolyte, which provide the maximum specific capacity of 51.3 mAh/g and the retention of specific capacity of 87.6% after 3000 cycles due to the synergic effect through a simultaneous redox reaction both in electrode and electrolyte, as well as the catalytic activity for reduction of triiodide of the PEDOT:PSS...
May 16, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29771635/pathogenesis-based-treatments-in-primary-sjogren-s-syndrome-using-artificial-intelligence-and-advanced-machine-learning-techniques-a-systematic-literature-review
#11
Nathan Foulquier, Pascal Redou, Christophe Le Gal, Bénédicte Rouvière, Jacques-Olivier Pers, Alain Saraux
Big data analysis has become a common way to extract information from complex and large datasets among most scientific domains. This approach is now used to study large cohorts of patients in medicine. This work is a review of publications that have used artificial intelligence and advanced machine learning techniques to study physio pathogenesis-based treatments in pSS. A systematic literature review retrieved all articles reporting on the use of advanced statistical analysis applied to the study of systemic autoimmune diseases (SADs) over the last decade...
May 17, 2018: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29770514/influence-of-heat-treatment-on-loading-of-polymeric-multilayer-microcapsules-with-rhodamine-b
#12
Alexey V Ermakov, Olga A Inozemtseva, Dmitry A Gorin, Gleb B Sukhorukov, Sergei Belyakov, Maria N Antipina
Layer-by-layer assembled polymeric multilayer capsules (PMC) of micrometer sizes are permeable for molecules below 1 KDa; therefore, the efficacy of such capsules in the delivery of low molecular weight water soluble bioactive compounds and drugs is frequently challenged. Thermally induced contraction of hollow PMC is explored here to enhance their loading efficacy with model compound, fluorescent rhodamine B (RhB). Four bilayered capsules obtained of poly(diallyldimethylammonium chloride)/polystyrene sulfonate ([PDADMAC/PSS]4 ) or poly-l-arginine/dextran sulfate ([PARG/DS]4 ) on sacrificial CaCO3 spherical microparticles are postloaded with RhB at ambient or elevated temperatures...
May 16, 2018: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/29769121/anxiety-and-depression-in-primary-sj%C3%A3-gren-s-syndrome-a-cross-sectional-study
#13
Yafei Cui, Ling Xia, Lin Li, Qian Zhao, Shengnan Chen, Zhifeng Gu
BACKGROUND: Prevalence of anxiety and depression is high in people with Primary Sjögren's syndrome (pSS). However, there are currently no known reported studies about anxiety/depression in pSS patients from China. Our aim was to compare anxiety/depression in pSS patients and healthy controls; to investigate the prevalence of anxiety and/or depression among pSS patients in China; to evaluate its relationship with the disease activity, fatigue, pain, education, ocular surface disease, oral health, swallowing disorders, employment status, European League Against Rheumatism Sjögren's Syndrome Patient Reported Index(ESSPRI) as well as to analyze potential determinants of anxiety and depression...
May 16, 2018: BMC Psychiatry
https://www.readbyqxmd.com/read/29768562/microscopic-detection-of-mycobacterium-tuberculosis-in-direct-or-processed-sputum-smears
#14
José Luiz de Oliveira Magalhães, Juliana Figueiredo da Costa Lima, Ana Albertina de Araújo, Ilyana Oliveira Coutinho, Nilma Cintra Leal, Alzira Maria Paiva de Almeida
INTRODUCTION: Microscopic identification of active pulmonary tuberculosis (PTB) from direct smears of sputum (DS) is widely used for detection, but has limited sensitivity. Here, we assessed the yield of acid-fast bacilli (AFB) detection in processed sputum smears (PSS). METHODS: Sputum samples were simultaneously analyzed by direct sputum smearing and after chemical treatment and spontaneous sedimentation. RESULTS: Of the 1,719 samples analyzed, 16...
March 2018: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29766587/all-solution-processed-metal-oxide-free-flexible-organic-solar-cells-with-over-10-efficiency
#15
Wei Song, Xi Fan, Bingang Xu, Feng Yan, Huiqin Cui, Qiang Wei, Ruixiang Peng, Ling Hong, Jiaming Huang, Ziyi Ge
All-solution-processing at low temperatures is important and desirable for making printed photovoltaic devices and also offers the possibility of a safe and cost-effective fabrication environment for the devices. Herein, an all-solution-processed flexible organic solar cell (OSC) using poly(3,4-ethylenedioxythiophene):poly-(styrenesulfonate) electrodes is reported. The all-solution-processed flexible devices yield the highest power conversion efficiency of 10.12% with high fill factor of over 70%, which is the highest value for metal-oxide-free flexible OSCs reported so far...
May 16, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29763739/antimicrobial-effect-of-the-photodynamic-therapy-using-erythrosine-methylene-blue-combination-on-streptococcus-mutans-biofilm
#16
Laíse Midori Tokubo, Pedro Luiz Rosalen, Janaina de Cássia Orlandi Sardi, Irlan Almeida Freires, Mitsue Fujimaki, Josely Emiko Umeda, Patricia Magalhães Barbosa, Gabriela Ortolan Tecchio, Noboru Hioka, Camila Fabiano de Freitas, Raquel Sano Suga Terada
BACKGROUND: Photodynamic therapy (PDT) has demonstrated promising results in the treatment of several clinical pathologies through the photochemical reaction caused by the combination of a photosensitizer and a light source. The objective of this study was to evaluate the antimicrobial effect of the combination of the photosensitizers (PSs) erythrosine/methylene blue activated by a white halogen light device on Streptococcus mutans biofilm. METHODS: Two separate experiments were conducted, the first using the PSs at the concentration of 100 μM, and the second 250 μM...
May 12, 2018: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/29762007/improved-stability-of-interfacial-energy-level-alignment-in-inverted-planar-perovskite-solar-cells
#17
Soeun Im, Wanjung Kim, Wonseok Cho, Dongguen Shin, Do Hyung Chun, Ryan Rhee, Jung Kyu Kim, Yeonjin Yi, Jong Hyeok Park, Jung Hyun Kim
Even though poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has been commonly used as a hole extraction layer (HEL) for p-i-n perovskite solar cells (PSCs), the cells' photovoltaic performance deteriorates because of the low and unstable work functions (WFs) of PEDOT:PSS versus those of a perovskite layer. To overcome this drawback, we synthesized a copolymer (P(SS-co-TFPMA)) ionomer consisting of PSS and tetrafluoropropylmethacrylate (TFPMA) as an alternative to conventional PEDOT:PSS. The PEDOT:P(SS-co-TFPMA) copolymer solution and its film exhibited excellent homogeneity and high phase stability compared with a physical mixture of TFPMA with PEDOT:PSS solution...
May 15, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29759653/kinematics-and-kinetics-of-the-shoe-during-human-slips
#18
Arian Iraqi, Rakié Cham, Mark S Redfern, Natasa S Vidic, Kurt E Beschorner
This paper quantified the heel kinematics and kinetics during human slips with the goal of guiding available coefficient of friction (ACOF) testing methods for footwear and flooring. These values were then compared to the testing parameters recommended for measuring shoe-floor ACOF. Kinematic and kinetic data of thirty-nine subjects who experienced a slip incident were pooled from four similar human slipping studies for this secondary analysis. Vertical ground reaction force (VGRF), center of pressure (COP), shoe-floor angle, side-slip angle, sliding speed and contact time were quantified at slip start (SS) and at the time of peak sliding speed (PSS)...
April 25, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29758499/interference-of-three-herbicides-on-iron-acquisition-in-maize-plants
#19
Maria Luce Bartucca, Alessandro Di Michele, Daniele Del Buono
The use of herbicides to control weed species could lead to environmental threats due to their persistence and accumulation in the ecosystems and cultivated fields. Nonetheless, the effect of these compounds on plant mineral nutrition in crops has been barely investigated. This study aimed at ascertaining the effect of three herbicides (S-metolachlor, metribuzin and terbuthylazine) on the capacity of maize to acquire iron (Fe). Interferences on plant growth and reductions on the Fe contents were found in the plants treated...
May 7, 2018: Chemosphere
https://www.readbyqxmd.com/read/29754950/oral-health-related-quality-of-life-in-primary-sj%C3%A3-gren-s-syndrome
#20
Gladyz Fernández-Martínez, Víctor Zamora-Legoff, Gabriela Hernández Molina
OBJECTIVE: To assess health-related quality of life (HRQoL) and oral health-related quality of life, and correlate them with unstimulated whole salivary flow (UWSF) and oral sicca symptoms in patients with primary Sjögren's syndrome (PSS). METHODS: We included 60 patients with PSS and 60 healthy controls matched according to gender and age (±3 years). We measured the UWSF and scored the European League Against Rheumatism (EULAR) Sjögren's Syndrome Patient Reported Index (ESSPRI)...
May 10, 2018: Reumatología Clinica
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