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https://www.readbyqxmd.com/read/29791299/spatial-attention-enhances-the-neural-representation-of-invisible-signals-embedded-in-noise
#1
Cooper A Smout, Jason B Mattingley
Recent evidence suggests that voluntary spatial attention can affect neural processing of visual stimuli that do not enter conscious awareness (i.e., invisible stimuli), supporting the notion that attention and awareness are dissociable processes [Wyart, V., Dehaene, S., & Tallon-Baudry, C. Early dissociation between neural signatures of endogenous spatial attention and perceptual awareness during visual masking. Frontiers in Human Neuroscience, 6, 1-14, 2012; Watanabe, M., Cheng, K., Murayama, Y., Ueno, K...
May 23, 2018: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/29789863/intricate-relationships-between-naked-viruses-and-extracellular-vesicles-in-the-crosstalk-between-pathogen-and-host
#2
REVIEW
Susanne G van der Grein, Kyra A Y Defourny, Erik F J Slot, Esther N M Nolte-'t Hoen
It is a long-standing paradigm in the field of virology that naked viruses cause lysis of infected cells to release progeny virus. However, recent data indicate that naked virus types of the Picornaviridae and Hepeviridae families can also leave cells via an alternative route involving enclosure in fully host-derived lipid bilayers. The resulting particles resemble extracellular vesicles (EV), which are 50 nm-1 μm vesicles released by all cells. These EV contain lipids, proteins, and RNA, and generally serve as vehicles for intercellular communication in various (patho)physiological processes...
May 22, 2018: Seminars in Immunopathology
https://www.readbyqxmd.com/read/29788819/nurse-spiritual-care-prevalence-and-correlates
#3
Iris Mamier, Elizabeth Johnston Taylor, Betty Wehtje Winslow
Many nurses embrace spiritual care as integral to holistic care. Evidence documenting the frequency of spiritual care provided in acute care settings, however, is sparse and weak. For this cross-sectional, correlational study, data were collected from N = 554 tertiary care nurses using the Nurse Spiritual Care Therapeutics Scale (NSCTS) measuring their self-reported spiritual care with patients/family members over the last 72 to 80 hours at work. While the most frequently endorsed practices centered on presence, listening, and spiritual assessment, the overall NSCTS score remained modest ( M = 37; SD = 12; possible range = 17-85)...
May 1, 2018: Western Journal of Nursing Research
https://www.readbyqxmd.com/read/29788749/university-life-with-asd-faculty-knowledge-and-student-needs
#4
Sasha M Zeedyk, Yasamine Bolourian, Jan Blacher
Increasingly, young adults with autism spectrum disorder are attending 4-year universities. The transition to adulthood can be challenging for these students, and university life poses its own set of demands. The present article takes a mixed-methods approach by including two studies utilizing complementary methodologies. Through in-depth interviews with students with autism spectrum disorder ( n = 13) and college professors ( n = 18), the purpose of the first study was to evaluate the experiences and needs of college students with autism spectrum disorder and identify the knowledge that faculty members possessed about working with these students...
May 1, 2018: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/29787784/heart-rate-variability-response-to-affective-pictures-processed-in-and-outside-of-conscious-awareness-three-consecutive-studies-on-emotional-regulation
#5
Necati Serkut Bulut, Axel Würz, Neşe Yorguner Küpeli, Gresa Çarkaxhıu Bulut, Mehmet Zihni Sungur
Previous research has increased understanding of the neurobiological basis of emotional regulation. However, less is known concerning the unconscious processing of affective information. Three experiments were performed to investigate the extent to which complex affective stimuli can be processed outside of consciousness and demonstrate possible mechanisms for regulation of resulting emotional responses. In Experiment 1, participants were either instructed to passively observe blocked-picture cues (neutral and negative) or to downregulate their emotions by distancing...
May 19, 2018: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/29785469/early-detection-of-cerebral-infarction-after-focal-ischemia-using-a-new-mri-indicator
#6
Yukako Nakajo, Qiang Zhao, Jun-Ichiro Enmi, Hidehiro Iida, Jun C Takahashi, Hiroharu Kataoka, Keiko Yamato, Hiroji Yanamoto
Prolongation of the T2 relaxation time, an increase in T2-weighted signal intensity (T2-SI), and a decrease in the apparent diffusion coefficient (ADC) calculated from diffusion-weighted images (DWI) on magnetic resonance imaging (MRI) are conventional indicators of the vasogenic (interstitial) or cytotoxic (cellular) cerebral edema that develops after ischemic stroke. However, these parameters obtained on stroke imaging have not given us a precise threshold at which we can determine the viability or vulnerability of the tissue, allowing us to decide on an intervention that will help reversible tissue in the acute phase...
May 21, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29782490/an-optimized-digital-watermarking-algorithm-in-wavelet-domain-based-on-differential-evolution-for-color-image
#7
Xinchun Cui, Yuying Niu, Xiangwei Zheng, Yingshuai Han
In this paper, a new color watermarking algorithm based on differential evolution is proposed. A color host image is first converted from RGB space to YIQ space, which is more suitable for the human visual system. Then, apply three-level discrete wavelet transformation to luminance component Y and generate four different frequency sub-bands. After that, perform singular value decomposition on these sub-bands. In the watermark embedding process, apply discrete wavelet transformation to a watermark image after the scrambling encryption processing...
2018: PloS One
https://www.readbyqxmd.com/read/29779515/health-care-of-sexual-minority-women
#8
REVIEW
Susan Jo Roberts
Sexual minority women may be invisible in health care settings unless practitioners ask every patient about sexual attractions/behaviors and identity. Sexual minority women need to feel comfortable and able to share information about their sexual identity, partners, and lives. No medical diagnoses are found more commonly in sexual minority women, but problems such as overweight/obesity, increased tobacco and alcohol use, increased mental health problems, and a past history of childhood sexual abuse are common...
June 2018: Nursing Clinics of North America
https://www.readbyqxmd.com/read/29773299/diffusion-mri-in-acute-nervous-system-injury
#9
Matthew D Budde, Nathan P Skinner
Diffusion weighted magnetic resonance imaging (DWI) and related techniques such as diffusion tensor imaging (DTI) are uniquely sensitive to the microstructure of the brain and spinal cord. In the acute aftermath of nervous system injury, for example, DWI reveals changes caused by injury that remains invisible on other MRI contrasts such as T2 -weighted imaging. This ability has led to a demonstrated clinical utility in cerebral ischemia. However, despite strong promise in preclinical models and research settings, DWI has not been as readily adopted for other acute injuries such as traumatic spinal cord, brain, or peripheral nerve injury...
April 30, 2018: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/29773084/sexual-and-reproductive-health-concerns-of-persons-with-disability-in-india-an-issue-of-deep-rooted-silence
#10
Seema Sharma, Muthusamy Sivakami
SummaryGlobal estimates suggest that over a billion people live with a disability that is significant enough to affect their daily lives. According to the 2011 Indian Census, India alone has about 26.8 million people with disabilities. Research suggests that persons with disabilities (PwDs) in India are among the most neglected, stigmatized, poor and least educated of the world's population, and women with disabilities in India are the most marginalized, both socially and economically. They bear the triple burden of being discriminated against through being 'women' (socially marginal beings), 'disabled' (incapacitated, inefficient and undesirable) and 'women with disabilities' (the weakest of the weak), often becoming socially invisible...
May 18, 2018: Journal of Biosocial Science
https://www.readbyqxmd.com/read/29771127/anapoles-in-free-standing-iii-v-nanodisks-enhancing-second-harmonic-generation
#11
Maria Timofeeva, Lukas Lang, Flavia Timpu, Claude Renaut, Alexei Bouravleuv, Igor V Shtrom, George Cirlin, Rachel Grange
Nonradiating electromagnetic configurations in nanostructures open new horizons for applications due to two essential features: lack of energy losses and invisibility to the propagating electromagnetic field. Such radiationless configurations form a basis for new types of nanophotonic devices, where a strong electromagnetic field confinement can be achieved together with lossless interactions between nearby components. In our work, we present a new design of free-standing disk nanoantennas with nonradiating current distributions for the optical near-infrared range...
May 17, 2018: Nano Letters
https://www.readbyqxmd.com/read/29767987/a-full-visible-spectrum-invisibility-cloak-for-mesoscopic-metal-wires
#12
Sang-Woo Kim, Byeong Wan An, Eunjin Cho, Byung Gwan Hyun, Yoon-Jong Moon, Sun-Kyung Kim, Jang-Ung Park
Structured metals can sustain a very large scattering cross-section that is induced by localized surface plasmons, which often has an adverse effect on their use as transparent electrodes in displays, touch screens, and smart windows due to an issue of low clarity. Here, we report a broadband optical cloaking strategy for the network of mesoscopic metal wires with submicrometer to micrometer diameters, which is exploited for manufacturing and application of high-clarity metal-wires-based transparent electrodes...
May 16, 2018: Nano Letters
https://www.readbyqxmd.com/read/29765940/a-comparative-survey-of-methods-for-remote-heart-rate-detection-from-frontal-face-videos
#13
Chen Wang, Thierry Pun, Guillaume Chanel
Remotely measuring physiological activity can provide substantial benefits for both the medical and the affective computing applications. Recent research has proposed different methodologies for the unobtrusive detection of heart rate (HR) using human face recordings. These methods are based on subtle color changes or motions of the face due to cardiovascular activities, which are invisible to human eyes but can be captured by digital cameras. Several approaches have been proposed such as signal processing and machine learning...
2018: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/29765152/illusory-body-ownership-of-an-invisible-body-interpolated-between-virtual-hands-and-feet-via-visual-motor-synchronicity
#14
Ryota Kondo, Maki Sugimoto, Kouta Minamizawa, Takayuki Hoshi, Masahiko Inami, Michiteru Kitazaki
Body ownership can be modulated through illusory visual-tactile integration or visual-motor synchronicity/contingency. Recently, it has been reported that illusory ownership of an invisible body can be induced by illusory visual-tactile integration from a first-person view. We aimed to test whether a similar illusory ownership of the invisible body could be induced by the active method of visual-motor synchronicity and if the illusory invisible body could be experienced in front of and facing away from the observer...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29765135/invisible-light-inside-the-natural-blind-spot-alters-brightness-at-a-remote-location
#15
Marina Saito, Kentaro Miyamoto, Yusuke Uchiyama, Ikuya Murakami
The natural blind spot in the visual field has been known as a large oval region that cannot receive any optical input because it corresponds to the retinal optic disk containing no rod/cone-photoreceptors. Recently, stimulation inside the blind spot was found to enhance, but not trigger, the pupillary light reflex. However, it is unknown whether blind-spot stimulation also affects visual perception. We addressed this question using psychophysical brightness-matching experiments. We found that a test stimulus outside the blind spot was judged as darker when it was accompanied by a consciously unexperienced blue oval inside the blind spot; moreover, the pupillary light reflex was enhanced...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29761263/measuring-the-health-of-an-invisible-population-lessons-from-the-colorado-transgender-health-survey
#16
Robin Christian, Amy Anderson Mellies, Alison Grace Bui, Rita Lee, Leo Kattari, Courtney Gray
BACKGROUND: Transgender people, those whose gender identity does not match their sex assigned at birth, face barriers to receiving health care. These include discrimination, prohibitive cost, and difficulty finding transgender-inclusive providers. As transgender identities are not typically recognized in public health research, the ability to compare the health of the transgender population to the overall population is limited. OBJECTIVE: The Colorado Transgender Health Survey sought to explore current disparities and their effects on the health of transgender people in Colorado...
May 15, 2018: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/29761025/the-dissociations-of-visual-processing-of-hole-and-no-hole-stimuli-an-functional-magnetic-resonance-imaging-study
#17
Qianli Meng, Yan Huang, Ding Cui, Lixia He, Lin Chen, Yuanye Ma, Xudong Zhao
Introduction: "Where to begin" is a fundamental question of vision. A "Global-first" topological approach proposed that the first step in object representation was to extract topological properties, especially whether the object had a hole or not. Numerous psychophysical studies found that the hole (closure) could be rapidly recognized by visual system as a primitive property. However, neuroimaging studies showed that the temporal lobe (IT), which lied at a late stage of ventral pathway, was involved as a dedicated region...
May 2018: Brain and Behavior
https://www.readbyqxmd.com/read/29756850/search-for-invisible-axion-dark-matter-with-the-axion-dark-matter-experiment
#18
N Du, N Force, R Khatiwada, E Lentz, R Ottens, L J Rosenberg, G Rybka, G Carosi, N Woollett, D Bowring, A S Chou, A Sonnenschein, W Wester, C Boutan, N S Oblath, R Bradley, E J Daw, A V Dixit, J Clarke, S R O'Kelley, N Crisosto, J R Gleason, S Jois, P Sikivie, I Stern, N S Sullivan, D B Tanner, G C Hilton
This Letter reports the results from a haloscope search for dark matter axions with masses between 2.66 and 2.81  μeV. The search excludes the range of axion-photon couplings predicted by plausible models of the invisible axion. This unprecedented sensitivity is achieved by operating a large-volume haloscope at subkelvin temperatures, thereby reducing thermal noise as well as the excess noise from the ultralow-noise superconducting quantum interference device amplifier used for the signal power readout...
April 13, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29754797/the-invisible-hands-conducting-minimally-invasive-mitral-valve-surgery
#19
EDITORIAL
Jason J Han, Pavan Atluri
No abstract text is available yet for this article.
April 19, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29753980/exploring-methods-to-expedite-the-recording-of-cest-datasets-using-selective-pulse-excitation
#20
Tairan Yuwen, Guillaume Bouvignies, Lewis E Kay
Chemical Exchange Saturation Transfer (CEST) has emerged as a powerful tool for studies of biomolecular conformational exchange involving the interconversion between a major, visible conformer and one or more minor, invisible states. Applications typically entail recording a large number of 2D datasets, each of which differs in the position of a weak radio frequency field, so as to generate a CEST profile for each nucleus from which the chemical shifts of spins in the invisible state(s) are obtained. Here we compare a number of band-selective CEST schemes for speeding up the process using either DANTE or cosine-modulated excitation approaches...
April 26, 2018: Journal of Magnetic Resonance
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