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https://www.readbyqxmd.com/read/28534400/opto-valleytronic-spin-injection-in-monolayer-mos2-few-layer-graphene-hybrid-spin-valves
#1
Yunqiu Kelly Luo, Jinsong Xu, Tiancong Zhu, Guanzhong Wu, Elizabeth Joan McCormick, Wenbo Zhan, Mahesh R Neupane, Roland K Kawakami
Two dimensional (2D) materials provide a unique platform for spintronics and valleytronics due to the ability to combine vastly different functionalities into one vertically-stacked heterostructure, where the strengths of each of the constituent materials can compensate for the weaknesses of the others. Graphene has been demonstrated to be an exceptional material for spin transport at room temperature, however it lacks a coupling of the spin and optical degrees of freedom. In contrast, spin/valley polarization can be efficiently generated in monolayer transition metal dichalcogenides (TMD) such as MoS2 via absorption of circularly-polarized photons, but lateral spin or valley transport has not been realized at room temperature...
May 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28529493/improving-learning-outcomes-the-ipad-and-preschool-children-with-disabilities
#2
Linda Chmiliar
The digital age has reached early childhood, and the use of touch screens by young children is common place. Research on the use of touch screen tablets with young children is becoming more prevalent; however, less information is available on the use of touch screen tablets to support young children with disabilities. Touch screen tablets may offer possibilities to preschool children with disabilities to participate in learning in a digital way. The iPad provides easy interaction on the touch screen and access to a multitude of engaging early learning applications...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28529303/social-perception-of-infertility-and-its-treatment-in-late-medieval-italy-margherita-datini-an-italian-merchant-s-wife
#3
Jong Kuk Nam
Because the perception of infertility in medieval Europe ranged from the extremely religious view of it as a malediction of God or the devil's work, to the reasonable medical conception of it as a sort of disease to treat, it is very difficult to determine the general attitudes of ordinary people towards infertility. This article seeks to elucidate the common social perception of infertility and its treatment in late medieval Europe by analyzing the case of Margherita Datini, an Italian merchant's wife who lived in the 1400s...
December 2016: Ŭi Sahak
https://www.readbyqxmd.com/read/28526295/large-scale-exploratory-genetic-analysis-of-cognitive-impairment-in-parkinson-s-disease
#4
Ignacio F Mata, Catherine O Johnson, James B Leverenz, Daniel Weintraub, John Q Trojanowski, Vivianna M Van Deerlin, Beate Ritz, Rebecca Rausch, Stewart A Factor, Cathy Wood-Siverio, Joseph F Quinn, Kathryn A Chung, Amie L Peterson-Hiller, Alberto J Espay, Fredy J Revilla, Johnna Devoto, Dora Yearout, Shu-Ching Hu, Brenna A Cholerton, Thomas J Montine, Karen L Edwards, Cyrus P Zabetian
Cognitive impairment is a common and disabling problem in Parkinson's disease (PD). Identification of genetic variants that influence the presence or severity of cognitive deficits in PD might provide a clearer understanding of the pathophysiology underlying this important nonmotor feature. We genotyped 1105 PD patients from the PD Cognitive Genetics Consortium for 249,336 variants using the NeuroX array. Participants underwent assessments of learning and memory (Hopkins Verbal Learning Test-Revised [HVLT-R]), working memory/executive function (Letter-Number Sequencing and Trail Making Test [TMT] A and B), language processing (semantic and phonemic verbal fluency), visuospatial abilities (Benton Judgment of Line Orientation [JoLO]), and global cognitive function (Montreal Cognitive Assessment)...
April 20, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28524927/the-effect-of-ocular-surface-regularity-on-contrast-sensitivity-and-straylight-in-dry-eye
#5
Shizuka Koh, Naoyuki Maeda, Chikako Ikeda, Sanae Asonuma, Mai Ogawa, Takahiro Hiraoka, Tetsuro Oshika, Kohji Nishida
Purpose: To investigate the association between visual function and ocular surface regularity in dry eye. Methods: We enrolled 52 eyes of 52 dry eye patients (34 dry eyes with superficial punctate keratopathy [SPK] in the central corneal region [central SPK] and 18 dry eyes without central SPK) and 20 eyes of 20 normal control subjects. All eyes had a best-corrected distance visual acuity better than 20/20. We measured two indices of contrast sensitivity function under photopic conditions: contrast sensitivity and letter contrast sensitivity...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28524157/gp-participation-in-increasing-uptake-in-a-national-bowel-cancer-screening-programme-the-pearl-project
#6
Sally C Benton, Piers Butler, Katy Allen, Michelle Chesters, Sally Rickard, Sally Stanley, Richard Roope, Daniel Vulkan, Stephen W Duffy
BACKGROUND: The NHS Bowel Cancer Screening Programme (BCSP) in England does not involve general practitioners (GPs). Uptake is ∼58%. The Practice Endorsed Additional Reminder Letter (PEARL) study piloted a GP-endorsed reminder letter. METHODS: General practices in Wessex with uptake <55% (prevalent invitations) were invited to participate. Subjects who had been invited for screening, sent a standard 28-day BCSP reminder letter but had not returned a test kit within 30 days of the standard reminder were sent a second reminder letter bearing the GP's letterhead and signature...
May 18, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28522311/effect-of-second-timed-appointments-for-non-attenders-of-breast-cancer-screening-in-england-a-randomised-controlled-trial
#7
Prue C Allgood, Roberta Maroni, Sue Hudson, Judith Offman, Anne E Turnbull, Lesley Peacock, Jim Steel, Geraldine Kirby, Christine E Ingram, Julie Somers, Clare Fuller, Anthony G Threlfall, Rhian Gabe, Anthony J Maxwell, Julietta Patnick, Stephen W Duffy
BACKGROUND: In England, participation in breast cancer screening has been decreasing in the past 10 years, approaching the national minimum standard of 70%. Interventions aimed at improving participation need to be investigated and put into practice to stop this downward trend. We assessed the effect on participation of sending invitations for breast screening with a timed appointment to women who did not attend their first offered appointment within the NHS Breast Screening Programme (NHSBSP)...
May 15, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28514492/ordering-by-the-numbers-in-anatomy-and-by-letters-too
#8
Paul E Neumann, Robert Baud, Pierre Sprumont
Here new rules of Latin anatomical nomenclature are proposed to deal with cases not covered by existing or other recommended rules. Determiners (e.g., numerals, letters, alphanumeric strings and Latin names of Greek letters) should follow the noun they specify or limit, just as it is recommended that adjectives should follow the noun they modify. In general, Roman numerals, Latin letters and Latin names of Greek letters are preferable to Arabic numerals and Greek letters in Latin anatomical terms. It is also noted that the word typus ("type") appears to be superfluous and unnecessary in the Latin anatomical nomenclature...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28512396/a-generic-transferable-eeg-decoder-for-online-detection-of-error-potential-in-target-selection
#9
Saugat Bhattacharyya, Amit Konar, D N Tibarewala, Mitsuhiro Hayashibe
Reliable detection of error from electroencephalography (EEG) signals as feedback while performing a discrete target selection task across sessions and subjects has a huge scope in real-time rehabilitative application of Brain-computer Interfacing (BCI). Error Related Potentials (ErrP) are EEG signals which occur when the participant observes an erroneous feedback from the system. ErrP holds significance in such closed-loop system, as BCI is prone to error and we need an effective method of systematic error detection as feedback for correction...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28510625/rethinking-ada-signage-standards-for-low-vision-accessibility
#10
Aries Arditi
Americans With Disabilities Act (ADA) and International Code Council (ICC) standards for accessible buildings and facilities affect design and construction of all new and renovated buildings throughout the United States, and form the basis for compliance with the ADA. While these standards may result in acceptable accessibility for people who are fully blind, they fall far short of what they could and should accomplish for those with low vision. In this article I critique the standards, detailing their lack of evidence base and other shortcomings...
May 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28509808/implementing-patient-information-for-gynae-oncology-patients-at-a-tertiary-referral-health-service
#11
Vicki Campbell, Kate Kynoch, Jacinta Tolmie, Carolyn Donges
AIM: To ensure that gynae-oncology surgical patients receive relevant written information, in their preferred format, and at a time that suits them, according to the best available evidence. METHODS: This project utilized an audit and feedback design and was conducted over a 9-month period from August 2015 to May 2016. Twenty-nine patients were audited prior to two strategies being implemented. The first strategy was a standardized e-mail letter to all patients (containing links to surgical information, cancer support websites and a short video introducing hospital staff, and the second was a discharge information sheet detailing wound care, signs of complications, actions to take and follow-up instructions...
May 15, 2017: International Journal of Evidence-based Healthcare
https://www.readbyqxmd.com/read/28509700/letter-to-the-editor-stopping-the-bleeding-is-not-enough
#12
Deborah A Kuhls, Ronald M Stewart
No abstract text is available yet for this article.
May 15, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28506433/awareness-in-the-crowd-beta-power-and-alpha-phase-of-prestimulus-oscillations-predict-object-discrimination-in-visual-crowding
#13
Luca Ronconi, Rosilari Bellacosa Marotti
Visual crowding is among the factors that most hamper conscious object perception. However, we currently ignore the neural states that predispose to an accurate perception within different crowding regimes. Here, we performed single-trial analyses of the electroencephalographical (EEG) oscillations, evaluating the prestimulus power and phase differences between correct and incorrect discrimination during a letter-crowding task, where irrelevant letters were placed nearby (strong crowding) or far (mid crowding) relative to the target...
May 11, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28504754/performance-comparison-of-pseudo-inverse-and-maximum-likelihood-estimators-of-stokes-parameters-in-the-presence-of-poisson-noise-for-spherical-design-based-measurement-structures
#14
François Goudail
Estimation of the Stokes vector from N>4 intensity measurements is usually performed with the pseudo-inverse (PI) estimator, which is optimal when the noise that corrupts the measurements is additive and Gaussian. In the presence of Poisson shot noise, the maximum-likelihood (ML) estimator is different from the PI estimator, but is more complex to implement since it is not closed-form. We compare in this Letter the precisions obtained with the ML and the PI estimators in the presence of Poisson noise when using measurement structures based on spherical designs...
May 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28504730/non-phase-unwrapping-interferometric-approach-for-a-real-time-in-plane-rotation-measurement
#15
Min Lu, Shengjia Wang, Laura Aulbach, Martin Jakobi, Alexander W Koch
This Letter proposes a novel interferometric approach for the in-plane rotation measurement. With a simple and compact measurement system, the rotation angle and its direction can be determined simultaneously in real time by applying the spatial carrier frequency. Besides, the phase unwrapping process is not required for the angular evaluation, which simplifies the data processing procedure. Theoretically, the relationship between the in-plane rotation and the phase change distribution has been deduced to demonstrate the possibility of this interferometric method...
May 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28504532/orthography-affects-second-language-speech-double-letters-and-geminate-production-in-english
#16
Bene Bassetti
Second languages (L2s) are often learned through spoken and written input, and L2 orthographic forms (spellings) can lead to non-native-like pronunciation. The present study investigated whether orthography can lead experienced learners of EnglishL2 to make a phonological contrast in their speech production that does not exist in English. Double consonants represent geminate (long) consonants in Italian but not in English. In Experiment 1, native English speakers and EnglishL2 speakers (Italians) were asked to read aloud English words spelled with a single or double target consonant letter, and consonant duration was compared...
May 15, 2017: Journal of Experimental Psychology. Learning, Memory, and Cognition
https://www.readbyqxmd.com/read/28503160/challenging-cognitive-control-by-mirrored-stimuli-in-working-memory-matching
#17
Maria Wirth, Robert Gaschler
Cognitive conflict has often been investigated by placing automatic processing originating from learned associations in competition with instructed task demands. Here we explore whether mirror generalization as a congenital mechanism can be employed to create cognitive conflict. Past research suggests that the visual system automatically generates an invariant representation of visual objects and their mirrored counterparts (i.e., mirror generalization), and especially so for lateral reversals (e.g., a cup seen from the left side vs...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28501549/the-effect-of-phasic-auditory-alerting-on-visual-perception
#18
Anders Petersen, Annemarie Hilkjær Petersen, Claus Bundesen, Signe Vangkilde, Thomas Habekost
Phasic alertness refers to a short-lived change in the preparatory state of the cognitive system following an alerting signal. In the present study, we examined the effect of phasic auditory alerting on distinct perceptual processes, unconfounded by motor components. We combined an alerting/no-alerting design with a pure accuracy-based single-letter recognition task. Computational modeling based on Bundesen's Theory of Visual Attention was used to examine the effect of phasic alertness on visual processing speed and threshold of conscious perception...
May 11, 2017: Cognition
https://www.readbyqxmd.com/read/28500516/nd-yag-laser-irradiation-associated-with-fluoridated-gels-containing-photo-absorbers-in-the-prevention-of-enamel-erosion
#19
Pereira Lgs, S H Joao-Souza, Sjc Bezerra, A B Borges, Acc Aranha, T Scaramucci
This study evaluated the combined effect of Nd:YAG laser irradiation and fluoridated gels containing photo absorbers against enamel erosion. Enamel specimens from bovine teeth were polished, eroded (10 min, with 1% citric acid, pH = 2.6), and randomly allocated into the experimental groups (n = 8), according to the different surface treatments: fluoridated gels (F: 9047 ppm F and F + Sn: 9047 ppm F and 3000 ppm Sn), with or without photo absorbers (E: erythrosine and MB: methylene blue), and associated or not with Nd:YAG laser irradiation (in contact; 0...
May 12, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28500216/metformin-lifestyle-intervention-and-cognition-in-the-diabetes-prevention-program-outcomes-study
#20
José A Luchsinger, Yong Ma, Costas A Christophi, Hermes Florez, Sherita H Golden, Helen Hazuda, Jill Crandall, Elizabeth Venditti, Karol Watson, Susan Jeffries, Jennifer J Manly, F Xavier Pi-Sunyer
OBJECTIVE: We examined the association of the Diabetes Prevention Program (DPP) intervention arms (lifestyle intervention, metformin, and placebo) with cognition in the DPP Outcomes Study (DPPOS). We also examined metformin use, incident type 2 diabetes, and glycemia as exposures. RESEARCH DESIGN AND METHODS: The DPP lasted 2.8 years, followed by a 13-month bridge to DPPOS. Cognition was assessed in DPPOS years 8 and 10 (12 and 14 years after randomization) with the Spanish English Verbal Learning Test (SEVLT), letter fluency and animal fluency tests, Digit Symbol Substitution Test (DSST), and a composite cognitive score...
May 12, 2017: Diabetes Care
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