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https://www.readbyqxmd.com/read/29156602/assembled-cantilever-fiber-touch-trigger-probe-for-three-dimensional-measurement-of-microstructures
#1
Limin Zou, He Ni, Peng Zhang, Xuemei Ding
In this paper, an assembled cantilever fiber touch trigger probe was developed for three-dimensional measurements of clear microstructures. The probe consists of a shaft assembled vertically to an optical fiber cantilever and a probing sphere located at the free end of the shaft. The laser is emitted from the free end of the fiber cantilever and converges on the photosensitive surface of the camera through the lens. The position shift of the light spot centroid was used to detect the performance of the optical fiber cantilever, which changed dramatically when the probing sphere touched the objects being measured...
November 20, 2017: Sensors
https://www.readbyqxmd.com/read/29156579/on-the-piezoelectric-detection-of-guided-ultrasonic-waves
#2
Kanji Ono
In order to quantify the wave motion of guided ultrasonic waves, the characteristics of piezoelectric detectors, or ultrasonic transducers and acoustic emission sensors, have been evaluated systematically. Such guided waves are widely used in structural health monitoring and nondestructive evaluation, but methods of calibrating piezoelectric detectors have been inadequate. This study relied on laser interferometry for the base displacement measurement of bar waves, from which eight different guided wave test set-ups are developed with known wave motion using piezoelectric transmitters...
November 18, 2017: Materials
https://www.readbyqxmd.com/read/29156125/validating-coarse-grained-voltage-activation-model-by-comparing-the-performance-to-the-results-of-mc-simulations
#3
Myungjin Lee, Vesselin Kolev, Arieh Warshel
Simulating the nature of voltage activated systems is a problem of major current interest, covering the action of voltage gated ion channels to energy storage batteries. However, fully microscopic converging molecular simulations of external voltage effects present a major challenge and macroscopic models are associated with major uncertainties about the dielectric treatment and the underlying physical basis. Recently we developed a coarse grained (CG) model that represents explicit the electrodes, the electrolytes and the membrane / protein system...
November 20, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29155291/measuring-the-psychosocial-dimensions-of-quality-of-life-in-advanced-cancer-patients-psychometrics-of-the-german-quality-of-life-at-the-end-of-life-cancer-psychosocial-qual-ec-p-questionnaire
#4
Britta Grünke, Rebecca Philipp, Sigrun Vehling, Katharina Scheffold, Martin Härter, Karin Oechsle, Frank Schulz-Kindermann, Anja Mehnert, Christopher Lo
CONTEXT: Quality of life is a central focus of care in advanced cancer. Specialized instruments, such as the QUAL-EC, may be useful to assess psychosocial issues associated with quality of life unique to this population. OBJECTIVES: To evaluate the measurement of the psychosocial dimensions of quality of life using the German translation of the QUAL-EC-Cancer-Psychosocial Questionnaire (QUAL-EC-P), including factor structure and psychometrics. METHODS: 183 patients with advanced cancer from the University Medical Center Hamburg-Eppendorf and University Medical Center Leipzig completed the QUAL-EC-P...
November 15, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/29155029/molecular-characterization-and-expression-analysis-of-complement-component-3-in-dojo-loach-misgurnus-anguillicaudatus
#5
Yongsheng Xu, Yongyao Yu, Xiaoting Zhang, Zhenyu Huang, Huili Li, Shuai Dong, Yangzhou Liu, Fen Dong, Zhen Xu
The complement component 3 (C3) is a central component of complement system. All three pathways converge at formation of C3 convertases and share the terminal pathways of membrane attack complex (MAC) formation. In this study, three isoforms of C3 were discovered in Misgurnus anguillicaudatus, named "C3-1", "C3-2" and "C3-3", respectively. The full-length of C3-1 cDNA sequence was firstly identified and analyzed from dojo loach (Misgurnus anguillicaudatus). The Ma-C3-1 cDNA sequence comprised of 4509 bp encoding 1454 amino acids with a putative signal peptide of 20 amino acid residues...
November 15, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29154640/when-saying-i-m-best-is-benign-developmental-shifts-in-perceptions-of-boasting
#6
Kristi L Lockhart, Mariel K Goddu, Frank C Keil
Four studies explored developmental changes in attitudes toward boasting. Overall, 5- to 7-year-olds (N = 130) were more likely than 8- to 11-year-olds (N = 126) and adults (N = 263) to view characters who boasted about valued traits as likable. In Study 1, younger children, unlike the older participants, liked and morally valued boasters who were accurate about their boasts. Justifications suggested the 5- to 7-year-olds perceived the boaster as sharing knowledge and being potentially helpful. No age group liked boasters who misrepresented themselves...
November 20, 2017: Developmental Psychology
https://www.readbyqxmd.com/read/29154636/optimal-task-sets-override-attentional-capture-by-rare-cues
#7
Josef G Schönhammer, Dirk Kerzel
Many studies converge on the conclusion that spatially irrelevant precues do not capture attention when cue and target features do not match. However, a recent study reported that rare onset cues captured attention even though observers searched for a nonmatching color target. Hence, attentional capture by rare onsets cues might be cognitively impenetrable (Folk & Remington, 2015). Although we replicated these findings (Experiment 1), we hypothesized that capture by rare onset cues can be prevented when the target display promotes a stronger task-set for the target or suppression of the cue features (i...
November 20, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/29154270/ubisol-q10-a-nanomicellar-water-soluble-formulation-of-coq10-treatment-inhibits-alzheimer-type-behavioral-and-pathological-symptoms-in-a-double-transgenic%C3%A2-mouse%C3%A2-tgapeswe-%C3%A2-psen1de9-model-of-alzheimer-s-disease
#8
Krithika Muthukumaran, Annie Kanwar, Caleb Vegh, Alexandra Marginean, Austin Elliott, Nicholas Guilbeault, Alexander Badour, Marianna Sikorska, Jerome Cohen, Siyaram Pandey
 Alzheimer's disease (AD) is one of the most common neurodegenerative pathologies for which there are no effective therapies to halt disease progression. Given the increase in the incidence of this disorder, there is an urgent need for pharmacological intervention. Unfortunately, recent clinical trials produced disappointing results. Molecular mechanisms of AD are converging on the notion that mitochondrial dysfunction, oxidative stress, and accumulation of dysfunctional proteins are involved in AD pathology...
November 16, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29153661/pkb-akt-and-mapk-erk-phosphorylation-is-highly-induced-by-inositols-novel-potential-insights-in-endothelial-dysfunction-in-preeclampsia
#9
Rossella D'Oria, Luigi Laviola, Francesco Giorgino, Vittorio Unfer, Stefano Bettocchi, Marco Scioscia
PKB/Akt and MAP/ERK are intracellular kinases regulating cell survival, proliferation and metabolism and as such hold a strategical role in preeclampsia. In fact intracellular pathways related to immunological alterations, endothelial dysfunction and insulin resistance in preeclampsia converge on these molecules. Inositol second messengers are involved in metabolic and cell signaling pathways and are highly expressed during preeclampsia. To evaluate the pathophysiological significance of this response, the effect of myo-inositol and d-chiro inositol on the activation of PKB/Akt and MAPK/ERK was assessed in human endothelial cells in vitro...
October 2017: Pregnancy Hypertension
https://www.readbyqxmd.com/read/29153104/development-and-preliminary-psychometric-evaluation-of-an-owner-completed-measure-of-feline-quality-of-life
#10
Sophi Tatlock, Margaret Gober, Nicola Williamson, Rob Arbuckle
Due to improved healthcare and pet longevity, measurement of health-related quality of life (HRQoL) is increasingly important in companion animal medicine. The aim of this study was to develop and evaluate the content and psychometric properties of an owner-completed assessment of health and quality of life (QoL) in cats for use in general veterinary clinical practice. A 23-item feline QoL measure, drafted based on findings from an online survey completed by 45 pet owners, was revised following qualitative interviews with 10 pet owners of healthy cats to assess content validity...
October 2017: Veterinary Journal
https://www.readbyqxmd.com/read/29152733/factorial-and-convergent-validity-of-the-youth-psychopathic-traits-inventory-short-version-in-ghana
#11
Samuel Adjorlolo, Bruce D Watt
Studies have shown the existence of psychopathy construct in Western cultures. However, there is a general lack of research on this topical issue in non-Western countries, specifically sub-Saharan Africa. Consequently, this study investigated the factorial and convergent validity of the Youth Psychopathic Traits Inventory-Short Version (YPI-S) in 327 adolescents in Ghana. Confirmatory factor analysis supported a three-factor structure (interpersonal, behavioural and affective) of psychopathy that was invariant across gender...
November 20, 2017: International Journal of Psychology: Journal International de Psychologie
https://www.readbyqxmd.com/read/29152453/targeting-the-stem-cell-properties-of-adult-breast-cancer-cells-using-combinatorial-strategies-to-overcome-drug-resistance
#12
Naira V Margaryan, Elisabeth A Seftor, Richard E B Seftor, Mary J C Hendrix
Purpose of review: Cancer is a major public health problem worldwide. In aggressive cancers, which are heterogeneous in nature, there exists a paucity of targetable molecules that can be used to predict outcome and response to therapy in patients, especially those in the high risk category with a propensity to relapse following chemotherapy. This review addresses the challenges pertinent to treating aggressive cancer cells with inherent stem cell properties, with a special focus on triple-negative breast cancer (TNBC)...
September 2017: Current Molecular Biology Reports
https://www.readbyqxmd.com/read/29152449/a-new-multiple-robot-path-planning-algorithm-dynamic-distributed-particle-swarm-optimization
#13
Asma Ayari, Sadok Bouamama
Multiple robot systems have become a major study concern in the field of robotic research. Their control becomes unreliable and even infeasible if the number of robots increases. In this paper, a new dynamic distributed particle swarm optimization (D(2)PSO) algorithm is proposed for trajectory path planning of multiple robots in order to find collision-free optimal path for each robot in the environment. The proposed approach consists in calculating two local optima detectors, LODpBest and LODgBest. Particles which are unable to improve their personal best and global best for predefined number of successive iterations would be replaced with restructured ones...
2017: Robotics and Biomimetics
https://www.readbyqxmd.com/read/29151623/fast-interior-point-solution-of-quadratic-programming-problems-arising-from-pde-constrained-optimization
#14
John W Pearson, Jacek Gondzio
Interior point methods provide an attractive class of approaches for solving linear, quadratic and nonlinear programming problems, due to their excellent efficiency and wide applicability. In this paper, we consider PDE-constrained optimization problems with bound constraints on the state and control variables, and their representation on the discrete level as quadratic programming problems. To tackle complex problems and achieve high accuracy in the solution, one is required to solve matrix systems of huge scale resulting from Newton iteration, and hence fast and robust methods for these systems are required...
2017: Numer Math (Heidelb)
https://www.readbyqxmd.com/read/29151621/error-analysis-for-discretizations-of-parabolic-problems-using-continuous-finite-elements-in-time-and-mixed-finite-elements-in-space
#15
Markus Bause, Florin A Radu, Uwe Köcher
Variational time discretization schemes are getting of increasing importance for the accurate numerical approximation of transient phenomena. The applicability and value of mixed finite element methods in space for simulating transport processes have been demonstrated in a wide class of works. We consider a family of continuous Galerkin-Petrov time discretization schemes that is combined with a mixed finite element approximation of the spatial variables. The existence and uniqueness of the semidiscrete approximation and of the fully discrete solution are established...
2017: Numer Math (Heidelb)
https://www.readbyqxmd.com/read/29151557/-development-of-the-transition-shock-scale-for-newly-graduated-nurses
#16
Eun Young Kim, Jung Hee Yeo, Kyeong Im Yi
PURPOSE: The purpose of this study was to develop a scale to assess the transition shock experienced by newly graduated nurses, and test the validity and reliability of the scale. METHODS: The initial items were identified through a review of literature and in-depth interviews with nine newly graduated nurses. Content validation of the items was evaluated by five nurse professors and three nurses. Participants were 269 newly graduated nurses who worked at six acute care hospitals in Busan, Ulsan, and Yangsan, South Korea...
October 2017: Journal of Korean Academy of Nursing
https://www.readbyqxmd.com/read/29151344/computation-of-hemagglutinin-free-energy-difference-by-the-confinement-method
#17
Sander Boonstra, Patrick R Onck, Erik Van der Giessen
Hemagglutinin (HA) mediates membrane fusion, a crucial step during influenza virus cell entry. How many HAs are needed for this process is still subject to debate. To aid in this discussion, the confinement free energy method was used to calculate the conformational free energy difference between the extended intermediate and postfusion state of HA. Special care was taken to comply with general guidelines for free energy calculations, thereby obtaining convergence and demonstrating reliability of the results...
November 20, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29151271/development-of-spin-orbit-coupling-for-stochastic-configuration-interaction-techniques
#18
Paul Murphy, Jeremy P Coe, Martin J Paterson
To perform spin-orbit coupling calculations on atoms and molecules, good zeroth-order wavefunctions are necessary. Here, we present the software development of the Monte Carlo Configuration Interaction (MCCI) method, to enable calculation of such properties, where MCCI iteratively constructs a multireference wavefunction using a stochastic procedure. In this initial work, we aim to establish the efficacy of this technique in predicting the splitting of otherwise degenerate energy levels on a range of atoms and small diatomic molecules...
November 19, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/29151148/development-and-preliminary-validation-of-the-food-intolerance-quality-of-life-questionnaire-fiqlq-adult-form
#19
Audrey DunnGalvin, Julie Barnett, Fiona M Begen, Kathleen Ryan, Jane S Lucas
BACKGROUND: Approximately 20% of children and adults avoid certain foods because of perceived food intolerance. Valid and reliable health-related quality of life instruments are needed to measure changes following clinical, therapeutic or policy interventions. However, there are no disease-specific quality of life instruments for adults with food intolerances. OBJECTIVE: To develop the Food Intolerance Quality of Life Questionnaire FIQLQ. Then to conduct psychometric validation including reliability and construct validity...
November 18, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/29151087/ganser-syndrome
#20
Sebastian Dieguez
Ganser's syndrome is a rare and controversial condition, whose main and most striking feature is the production of approximate answers (or near misses) to very simple questions. For instance, asked how many legs a horse has, Ganser patients will reply "5", and answers to plain arithmetic questions will likewise be wrong, but only slightly off the mark (e.g., 2 + 2 = 3). This symptom was originally described by Sigbert Ganser in 1897 in prisoners on remand and labeled Vorbeigehen ("to pass by"), although the term Vorbeireden ("to talk beside the point") is also frequently used...
2018: Frontiers of Neurology and Neuroscience
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