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https://www.readbyqxmd.com/read/28936526/modeling-the-impedance-spectra-of-mixed-conducting-thin-films-with-exposed-and-embedded-current-collectors
#1
Jiapeng Liu, Francesco Ciucci
In this article, we develop a new finite-element-based model for the simulation of the electrochemical impedance spectroscopy (EIS) response of mixed ionic electronic conducting (MIEC) thin films. We first validated the model against experimental data for Sm-doped CeO2 (SDC) symmetrical films deposited on an yittria-stabilized ZrO2 (YSZ) substrate, a pure ionic conductor. We first studied the configuration where the patterned electrodes are placed on top of the MIEC ("exposed" configuration). Our model is capable of correctly reproducing the EIS response and the total capacitance, together with their dependence on the oxygen partial pressure...
September 22, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28935961/field-cycling-nmr-with-high-resolution-detection-under-magic-angle-spinning-determination-of-field-window-for-nuclear-hyperpolarization-in-a-photosynthetic-reaction-center
#2
Daniel Gräsing, Pavlo Bielytskyi, Isaac F Céspedes-Camacho, A Alia, Thorsten Marquardsen, Frank Engelke, Jörg Matysik
Several parameters in NMR depend on the magnetic field strength. Field-cycling NMR is an elegant way to explore the field dependence of these properties. The technique is well developed for solution state and in relaxometry. Here, a shuttle system with magic-angle spinning (MAS) detection is presented to allow for field-dependent studies on solids. The function of this system is demonstrated by exploring the magnetic field dependence of the solid-state photochemically induced nuclear polarization (photo-CIDNP) effect...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935692/probing-structure-function-relationships-in-early-events-in-photosynthesis-using-a-chimeric-photocomplex
#3
Kenji V P Nagashima, Mai Sasaki, Kanako Hashimoto, Shinichi Takaichi, Sakiko Nagashima, Long-Jiang Yu, Yuto Abe, Kenta Gotou, Tomoaki Kawakami, Mizuki Takenouchi, Yuuta Shibuya, Akira Yamaguchi, Takashi Ohno, Jian-Ren Shen, Kazuhito Inoue, Michael T Madigan, Yukihiro Kimura, Zheng-Yu Wang-Otomo
The native core light-harvesting complex (LH1) from the thermophilic purple phototrophic bacterium Thermochromatium tepidum requires Ca(2+) for its thermal stability and characteristic absorption maximum at 915 nm. To explore the role of specific amino acid residues of the LH1 polypeptides in Ca-binding behavior, we constructed a genetic system for heterologously expressing the Tch. tepidum LH1 complex in an engineered Rhodobacter sphaeroides mutant strain. This system contained a chimeric pufBALM gene cluster (pufBA from Tch...
September 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28932689/successful-treatment-with-paclitaxel-carboplatin-and-gemcitabine-as-second-line-chemotherapy-for-recurrent-urothelial-carcinoma-of-the-bladder-with-glandular-differentiation-after-radical-cystectomy-a-case-report
#4
Hiroki Fukuhara, Hiroshi Kakizaki, Hisashi Kaneko, Takuya Yamanobe, Masaki Ushijima, Yuya Kuboki, Norihiko Tsuchiya
Urothelial carcinoma of the bladder (UCB) with glandular differentiation is a histological variant (HV) that is more likely to have positive extravesical tumors or nodes than those in pure UCB. Cisplatin-based neoadjuvant chemotherapy (NAC) prior to radical cystectomy (RC) is more effective for pure UCB; however, few reports are available on second-line chemotherapy for recurrence of UCB with HV. Here we report a 65-year-old Japanese male diagnosed with local recurrence UCB with HV after NAC + RC who safely achieved complete response with paclitaxel, carboplatin, and gemcitabine combination chemotherapy...
November 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28932243/sensitive-wavelengths-selection-in-identification-of-ophiopogon-japonicus-based-on-near-infrared-hyperspectral-imaging-technology
#5
Zhengyan Xia, Chu Zhang, Haiyong Weng, Pengcheng Nie, Yong He
Hyperspectral imaging (HSI) technology has increasingly been applied as an analytical tool in fields of agricultural, food, and Traditional Chinese Medicine over the past few years. The HSI spectrum of a sample is typically achieved by a spectroradiometer at hundreds of wavelengths. In recent years, considerable effort has been made towards identifying wavelengths (variables) that contribute useful information. Wavelengths selection is a critical step in data analysis for Raman, NIRS, or HSI spectroscopy. In this study, the performances of 10 different wavelength selection methods for the discrimination of Ophiopogon japonicus of different origin were compared...
2017: International Journal of Analytical Chemistry
https://www.readbyqxmd.com/read/28929590/enhancing-photocurrent-generation-in-photosynthetic-reaction-center-based-photoelectrochemical-cells-with-biomimetic-dna-antenna
#6
Anne-Marie Carey, Haojie Zhang, Minghui Liu, Daiana Sharaf, Natalie Akram, Hao Yan, Su Lin, Neal Woodbury, Dong-Kyun Seo
3 to 4 times higher performance of biohybrid photoelectrochemical cells with photosynthetic reaction centers (RC) has been achieved by using a DNA-based biomimetic antenna. Synthetic dyes Cy3 and Cy5 were chosen and strategically placed in the anntena in such a way that they can collect additional light energy in the visible region of the solar spectrum and transfer it to RC through Förster resonance energy transfer (FRET). The antenna, a DNA templated multiple dye system, is attached to each Rhodobacter sphaeroides RC near the primary donor, P, to facilitate the energy transfer process...
September 19, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28929169/validation-of-pruritus-measures-gathered-with-the-electronic-patient-reported-outcome-system-mopat
#7
Michael Storck, Claudia Zeidler, Mirjam Rehr, Claudia Riepe, Martin Dugas, Sonja Stà Nder, Iã Aki Soto-Rey
In order to improve diagnosis and treatment, physicians require information about the social context and quality of life of their patients. The Center for Chronic Pruritus at the University Hospital Münster achieves this goal using the electronic patient-reported outcome system “Mobile Patient Survey”, which assesses pruritus and quality of life measures. The aim of this study is to evaluate the consistency and reliability of such measures. A total of 42 patients, age range 19â€"82 years, participated in the study and were asked to assess the measures at baseline via a paper questionnaire, and to use the “Mobile Patient Survey” at baseline and after 1 h in order to test reliability...
September 20, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28928012/frequency-and-prognostic-significance-of-incidental-prostate-cancer-at-radical-cystectomy-results-from-an-international-retrospective-study
#8
Rieken Malte, Luis A Kluth, Dharam Kaushik, Stephen A Boorjian, Mohammad Abufaraj, Beat Foerster, Michael Rink, Kilian Gust, Florian Roghmann, Joachim Noldus, Dimitri Vordos, Masayuki Hagiwara, Eiji Kikuchi, Masaomi Ikeda, Kazumasa Matsumoto, Pierre I Karakiewicz, Morgan Rouprêt, Alberto Briganti, Douglas S Scherr, Shahrokh F Shariat, Veronika Seebacher
OBJECTIVES: To analyze the frequency of incidental prostate cancer (PC) at radical cystoprostatectomy (RC) for urothelial carcinoma of the bladder (UCB) and its association with survival outcomes in an international cohort. PATIENTS AND METHODS: In this retrospective study, we included 2114 who underwent RC and lymphadenectomy for UCB between 1976 and 2012 male patients from seven institutions. Univariable and multivariable Cox regression models addressed the association of incidental PC with cancer-specific mortality and overall mortality after RC...
September 7, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28927455/eight-orthopedic-surgeons-achieved-moderate-to-excellent-reliability-measuring-the-preoperative-posterior-tilt-angle-in-50-garden-i-and-garden-ii-femoral-neck-fractures
#9
Filip C Dolatowski, Sigurd Erik Hoelsbrekken
BACKGROUND: Studies of elderly patients with Garden-I and Garden-II femoral neck fractures (FNFs) suggest that a preoperative posterior tilt of the femoral head of at least 20° increases the risk of fixation failure. A recently published treatment algorithm recommended hemiarthroplasty over internal fixation for elderly patients with Garden-I and Garden-II FNFs and a preoperative posterior tilt of at least 20°. However, the reliability of the method used to measure the posterior tilt has not been assessed according to recommended standards for reliability trials...
September 19, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28926958/an-eccentricity-based-data-routing-protocol-with-uniform-node-distribution-in-3d-wsn
#10
A S M Sanwar Hosen, Gi Hwan Cho, In-Ho Ra
Due to nonuniform node distribution, the energy consumption of nodes are imbalanced in clustering-based wireless sensor networks (WSNs). It might have more impact when nodes are deployed in a three-dimensional (3D) environment. In this regard, we propose the eccentricity based data routing (EDR) protocol in a 3D WSN with uniform node distribution. It includes network partitions called 3D subspaces/clusters of equal member nodes, an energy-efficient routing centroid (RC) nodes election and data routing algorithm...
September 16, 2017: Sensors
https://www.readbyqxmd.com/read/28923143/validation-of-the-cognition-test-battery-for-spaceflight-in-a-sample-of-highly-educated-adults
#11
Tyler M Moore, Mathias Basner, Jad Nasrini, Emanuel Hermosillo, Sushila Kabadi, David R Roalf, Sarah McGuire, Adrian J Ecker, Kosha Ruparel, Allison M Port, Chad T Jackson, David F Dinges, Ruben C Gur
BACKGROUND: Neuropsychological changes that may occur due to the environmental and psychological stressors of prolonged spaceflight motivated the development of the Cognition Test Battery. The battery was designed to assess multiple domains of neurocognitive functions linked to specific brain systems. Tests included in Cognition have been validated, but not in high-performing samples comparable to astronauts, which is an essential step toward ensuring their usefulness in long-duration space missions...
October 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28919521/treatment-patterns-and-survival-outcomes-for-patients-with-small-cell-carcinoma-of-the-bladder
#12
Benjamin W Fischer-Valuck, Yuan James Rao, Lauren E Henke, Soumon Rudra, Caressa Hui, Brian C Baumann, Hiram A Gay, Jeff M Michalski
BACKGROUND: Small cell carcinoma of the bladder (SCCaB) is a rare tumor without a standard treatment algorithm. Treatment patterns and survival outcomes from the National Cancer Database (NCDB) may provide insight into optimal treatment strategies. OBJECTIVE: To investigate the relationship between overall survival (OS) and treatment strategy. DESIGN, SETTING, AND PARTICIPANTS: This was an observational study of treatment-naïve patients who received treatment from 2004 to 2013...
September 14, 2017: European Urology Focus
https://www.readbyqxmd.com/read/28918570/mathematical-description-of-drug-target-interactions-application-to-biologics-that-bind-to-targets-with-two-binding-sites
#13
Leonid Gibiansky, Ekaterina Gibiansky
The emerging discipline of mathematical pharmacology occupies the space between advanced pharmacometrics and systems biology. A characteristic feature of the approach is application of advance mathematical methods to study the behavior of biological systems as described by mathematical (most often differential) equations. One of the early application of mathematical pharmacology (that was not called this name at the time) was formulation and investigation of the target-mediated drug disposition (TMDD) model and its approximations...
September 16, 2017: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/28917222/validation-of-summer-and-winter-elisa-measurements-of-serum-25-hydroxyvitamin-d-concentrations-in-mongolia
#14
Sabri Bromage, Daria Tselmen, Gary Bradwin, Michael F Holick, Davaasaambuu Ganmaa
BACKGROUND AND OBJECTIVES: Assay cost, quality, and availability pose challenges for vitamin D surveys in limited resource settings. This study aimed to validate an inexpensive vitamin D assay (ELISA) under real-world conditions in Mongolia, the northernmost developing country, to characterize the assay's usefulness and inform the design of epidemiologic studies in similar regions. METHODS AND STUDY DESIGN: We collected paired summer and winter serum samples from 120 men and women (aged 20-57 years) in urban and rural Mongolia, analyzed each sample for 25(OH)D concentration using both Immunodiagnostic Systems ELISA and DiaSorin LIAISON 25(OH)D TOTAL, and compared the assays using multiple statistics...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28917190/posttraumatic-stress-symptoms-and-dissociation-between-childhood-trauma-and-two-different-types-of-psychosis-like-experience
#15
Ji Young Choi
This study examined the roles of posttraumatic stress (PTS) symptoms and dissociation in the relationship between childhood trauma and two different types of psychosis-like experience, including persecutory ideation and aberrant experience, in non-psychotic psychiatric patients. From August 2015 to August 2016, among psychiatric out patients seeking treatment at the Department of Psychiatry at a major teaching medical hospital in Seoul, Korea, 169 patients who had never been diagnosed with a psychotic disorder, including schizophrenia spectrum disorder, bipolar disorder, and/or depressive disorder with psychotic features, completed the Korean Childhood Trauma Questionnaire, the Korean version of the Impact of Event Scale-Revised, the modified Korean version of the Peritraumatic Dissociation Experiences Questionnaire, and the Korean Minnesota Multiphasic Personality Inventory-2 (MMPI-2)...
September 13, 2017: Child Abuse & Neglect
https://www.readbyqxmd.com/read/28915599/copy-number-variations-of-circulating-cell-free-dna-in-urothelial-carcinoma-of-the-bladder-patients-treated-with-radical-cystectomy-a-prospective-study
#16
Armin Soave, Felix K-H Chun, Timo Hillebrand, Michael Rink, Lars Weisbach, Bettina Steinbach, Margit Fisch, Klaus Pantel, Heidi Schwarzenbach
The aim of the present study was to establish a rapid profiling method using multiplex ligation-dependent probe amplification (MLPA) and characterize copy number variations (CNV) in circulating, cell-free DNA (cfDNA) in 85 urothelial carcinoma of the bladder (UCB) patients treated with radical cystectomy (RC). MLPA was tested for the use of cfDNA extracted from serum and plasma by various commercial extraction kits. Eighteen probes served as reference to control denaturation, ligation and amplification efficiency...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28914530/the-emergence-of-the-reactivity-continuum-of-organic-matter-from-kinetics-of-a-multitude-of-individual-molecular-constituents
#17
Alina Mostovaya, Jeffrey Alistair Hawkes, Birgit Koehler, Thorsten Dittmar, Lars J Tranvik
The reactivity continuum (RC) model is a powerful statistical approach for describing the apparent kinetics of bulk organic matter (OM) decomposition. Here, we used ultrahigh resolution mass spectrometry data to evaluate the main premise of the RC model, namely that there is a continuous spectrum of reactivity within bulk OM, where each individual reactive type undergoes exponential decay. We performed a 120 days OM decomposition experiment on lake water, with an untreated control and a treatment preexposed to UV light, and described the loss of bulk dissolved organic carbon (DOC) with RC modeling...
September 15, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28913657/radical-cystectomy-for-recurrent-urothelial-carcinoma-after-prior-partial-cystectomy-perioperative-and-oncologic-outcomes
#18
Ross J Mason, Igor Frank, Bimal Bhindi, Matthew K Tollefson, R Houston Thompson, R Jeffrey Karnes, Robert Tarrell, Prabin Thapa, Stephen A Boorjian
PURPOSE: To evaluate perioperative and oncologic outcomes of patients undergoing radical cystectomy (RC) for recurrence of urothelial carcinoma (UC) after prior partial cystectomy (PC), and to compare these outcomes to patients undergoing primary RC. METHODS: Patients who underwent RC for recurrence of UC after prior PC were matched 1:3 to patients undergoing primary RC based on age, pathologic stage, and decade of surgery. Perioperative and oncologic outcomes were compared using Wilcoxon sign-rank test, McNemars test, the Kaplan-Meier method, and Cox proportional hazards regression analyses...
September 14, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28905486/perioperative-allogeneic-blood-transfusion-does-not-adversely-impact-oncological-outcomes-after-radical-cystectomy-for-urinary-bladder-cancer-a-propensity-score-weighted-european-multicenter-study
#19
Malte W Vetterlein, Philipp Gild, Luis A Kluth, Thomas Seisen, Michael Gierth, Hans-Martin Fritsche, Maximilian Burger, Chris Protzel, Oliver W Hakenberg, Nicolas von Landenberg, Florian Roghmann, Joachim Noldus, Philipp Nuhn, Armin Pycha, Michael Rink, Felix K-H Chun, Matthias May, Margit Fisch, Atiqullah Aziz
OBJECTIVES: To evaluate the effect of perioperative blood transfusion (PBT) on recurrence-free survival (RFS), overall survival (OS), cancer-specific mortality (CSM), and other-cause mortality (OCM) in patients undergoing radical cystectomy (RC), utilizing a contemporary European multicenter cohort. PATIENTS AND METHODS: The PROspective MulticEnTer RadIcal Cystectomy Series (PROMETRICS) includes data on 679 patients who underwent RC at 18 European tertiary care centers in 2011...
September 14, 2017: BJU International
https://www.readbyqxmd.com/read/28904952/internal-impingement-of-the-shoulder-a-risk-of-false-positive-test-outcomes-in-external-impingement-tests
#20
Tim Leschinger, Christopher Wallraff, Dirk Müller, Matthias Hackenbroch, Henning Bovenschulte, Jan Siewe
BACKGROUND: External impingement tests are considered as being particularly reliable for identifying subacromial and coracoid shoulder impingement mechanisms. The purpose of the present study was to evaluate if these tests are likely to provoke an internal shoulder impingement mechanism which, in cases of a pathologic condition, can lead to a positive test result. METHOD: In 37 subjects, the mechanical contact between the glenoid rim and the rotator cuff (RC) was measured quantitatively and qualitatively in external impingement test positions using an open MRI system...
2017: BioMed Research International
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