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https://www.readbyqxmd.com/read/29118684/a-pilot-study-investigating-employee-utilization-of-corporate-telehealth-services
#1
Seena Shazowee Edgerton
In line with the vision of the University of Mississippi Medical Center (UMMC) to improve health outcomes and eliminate healthcare disparities in Mississippi, a corporate telehealth program was initiated beginning May 2014. A descriptive study was performed to discover common characteristics among enrolled employee users who took advantage of UMMC's corporate telehealth services offered in their workplace throughout the program's first year of operation. This pilot study examined the number of videoconference visits (e-visits) throughout the first year of operation, from May 2014 through April 2015...
2017: Perspectives in Health Information Management
https://www.readbyqxmd.com/read/29102607/prevalence-of-vision-impairment-in-older-adults-in-rural-china-in-2014-and-comparisons-with-the-2006-china-nine-province-survey
#2
Jialiang Zhao, Xiao Xu, Leon B Ellwein, Ning Cai, Huaijin Guan, Mingguang He, Ping Liu, Jianhua Lv, Xunlun Sheng, Peizeng Yang, Jinglin Yi, Mei Yang, Rui Zhang, Xiaohu Ding, Liping Du, Fengrong Li, Hong Lu, Wenqiang Shao, Junwei Wang, Yuansheng Yuan, Rui Zhou, Wenjuan Zhuang, Lei An
PURPOSE: Estimate the prevalence of vision impairment and blindness in 2014 among older adults in rural China with comparisons with the 2006 Nine-Province Survey. DESIGN: Population-based, cross-sectional study. METHODS: Geographical cluster sampling was used in randomly selecting residents from a rural county or semi-rural district within nine provinces: Beijing, Jiangsu, Guangdong, Heilongjiang, Jiangxi, Hebei, Ningxia, Chongqing and Yunnan...
November 1, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29080712/caudal-intraparietal-sulcus-and-three-dimensional-vision-a-combined-functional-magnetic-resonance-imaging-and-single-cell-study
#3
Amir-Mohammad Alizadeh, Ilse Van Dromme, Bram-Ernst Verhoef, Peter Janssen
The cortical network processing three-dimensional (3D) object structure defined by binocular disparity spans both the ventral and dorsal visual streams. However, very little is known about the neural representation of 3D structure at intermediate levels of the visual hierarchy. Here, we investigated the neural selectivity for 3D surfaces in the macaque Posterior Intraparietal area (PIP) in the medial bank of the caudal intraparietal sulcus (IPS). We first identified a region sensitive to depth-structure information in the medial bank of the caudal IPS using functional Magnetic Resonance Imaging (fMRI), and then recorded single-cell activity within this fMRI activation in the same animals...
November 4, 2017: NeuroImage
https://www.readbyqxmd.com/read/29064869/vision-and-vestibular-system-dysfunction-predicts-prolonged-concussion-recovery-in-children
#4
Christina L Master, Stephen R Master, Douglas J Wiebe, Eileen P Storey, Julia E Lockyer, Olivia E Podolak, Matthew F Grady
OBJECTIVE: Up to one-third of children with concussion have prolonged symptoms lasting beyond 4 weeks. Vision and vestibular dysfunction is common after concussion. It is unknown whether such dysfunction predicts prolonged recovery. We sought to determine which vision or vestibular problems predict prolonged recovery in children. DESIGN: A retrospective cohort of pediatric patients with concussion. SETTING: A subspecialty pediatric concussion program...
October 20, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29052314/modeling-the-convergence-accommodation-of-stereo-vision-for-binocular-endoscopy
#5
Yuanqian Gao, Jinhua Li, Jianmin Li, Shuxin Wang
BACKGROUND: The stereo laparoscope is an important tool for achieving depth perception in robot-assisted minimally invasive surgery (MIS). METHODS: A dynamic convergence accommodation algorithm is proposed to improve the viewing experience and achieve accurate depth perception. Based on the principle of the human vision system, a positional kinematic model of the binocular view system is established. The imaging plane pair is rectified to ensure that the two rectified virtual optical axes intersect at the fixation target to provide immersive depth perception...
October 19, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/29036109/transparency-in-stereopsis-parallel-encoding-of-overlapping-depth-planes
#6
Adam Reeves, David Lynch
We report that after extensive training, expert adults can accurately report the number, up to six, of transparent overlapping depth planes portrayed by brief (400 ms or 200 ms) random-element stereoscopic displays, and can well discriminate six from seven planes. Naïve subjects did poorly above three planes. Displays contained seven rows of 12 randomly located ×'s or +'s; jittering the disparities and number in each row to remove spurious cues had little effect on accuracy. Removing the central 3° of the 10° display to eliminate foveal vision hardly reduced the number of reportable planes...
August 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29031966/bink-biological-binary-keypoint-descriptor
#7
Mário Saleiro, Kasim Terzić, J M F Rodrigues, J M H du Buf
Learning robust keypoint descriptors has become an active research area in the past decade. Matching local features is not only important for computational applications, but may also play an important role in early biological vision for disparity and motion processing. Although there were already some floating-point descriptors like SIFT and SURF that can yield high matching rates, the need for better and faster descriptors for real-time applications and embedded devices with low computational power led to the development of binary descriptors, which are usually much faster to compute and to match...
October 13, 2017: Bio Systems
https://www.readbyqxmd.com/read/28981746/when-eukaryotes-and-prokaryotes-look-alike-the-case-of-regulatory-rnas
#8
Brice Felden, Luc Paillard
The discovery that all living entities express many RNAs beyond mRNAs, tRNAs and rRNAs has been a surprise in the past two decades. In fact, regulatory RNAs (regRNAs) are plentiful, and we report stunning parallels between their mechanisms and functions in prokaryotes and eukaryotes. For instance, prokaryotic CRISPR (clustered regularly interspaced short palindromic repeats) defense systems are functional analogs to eukaryotic RNA interference processes that preserve the cell against foreign nucleic acid elements...
September 1, 2017: FEMS Microbiology Reviews
https://www.readbyqxmd.com/read/28942369/slanted-support-window-based-stereo-matching-for-surface-reconstruction-of-microscopic-samples
#9
Ahmadreza Baghaie, Chi Zhang, Ali Bakhshinejad, Heather A Owen, Hongyang Chao, Roshan M D'Souza, Zeyun Yu
This work is to address the limitations of 2D Scanning Electron Microscopy (SEM) micrographs in providing 3D topographical information necessary for various types of analysis in biological and biomedical sciences as well as mechanical and material engineering by investigating modern stereo vision methodologies for 3D surface reconstruction of microscopic samples. To achieve this, micrograph pairs of the microscopic samples are acquired by utilizing an SEM equipped with motor controlled specimen stage capable of precise translational, rotational movements and tilting of the specimen stage...
September 8, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28882501/pediatric-ophthalmology-and-childhood-reading-difficulties-overview-of-reading-development-and-assessments-for-the-pediatric-ophthalmologist
#10
REVIEW
Megan E Collins, Lucy I Mudie, Amanda J Inns, Michael X Repka
Reading difficulties are common in the pediatric population, and large socioeconomic disparities exist. In the United States 46% of white children achieved expected reading proficiency by the end of fourth grade, while only 21% of Hispanic and 18% of African American children were reading at the expected level. Reading is an involved cognitive process with many subskills; likewise, development of reading proficiency is a complex and continuous process. Failure to achieve reading proficiency or even early difficulty with reading can affect a child's academic performance for years to come...
September 4, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28876308/the-need-to-promote-sexual-health-in-america-a-new-vision-for-public-health-action
#11
Jessie V Ford, Megan B Ivankovich, John M Douglas, Edward W Hook, Lynn Barclay, Joycelyn Elders, David Satcher, Eli Coleman
Sexual health is considered to be a state of wellness with physical, emotional, mental, and social dimensions. Sexual health can contribute to our overall well-being in each of these dimensions. However, despite the intrinsic importance and positive aspects of sexuality in our lives, the United States presently faces significant challenges related to the sexual health of its citizens, including human immunodeficiency virus, other sexually transmitted infections, viral hepatitis, unintended pregnancies, sexual violence, sexual dysfunction, and cancers in reproductive tracts with serious disparities among the populations affected...
June 28, 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28858046/2015-charles-f-prentice-medal-award-lecture-neural-organization-of-binocular-vision
#12
Ralph D Freeman
During a Research Career Development Award from the National Eye Institute, I spent a year at the University of Cambridge doing research with John Robson. The goal was to use a visual stimulation approach that had not been previously attempted, with the intention of exploring fundamental organization principles of the neural basis of binocular vision. The idea was to use sinusoidal gratings that drifted before both eyes such that the relative phase for one eye was fixed while that of the other was varied. This provided binocular stimuli of variable relative phase, i...
October 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28836389/optimal-orientation-for-angularly-segmented-multifocal-corrections
#13
Pablo de Gracia, Andreas Hartwig
PURPOSE: Evaluate the importance of orientation of multifocal lens designs with angular increments of addition. METHODS: Optical properties of one monofocal and three multifocal designs were analysed with the visual Strehl ratio (VSOTF) metric through-focus (-1 to 5 D). Designs were tested in combination with the higher-order aberrations (HOAs) of 782 subjects (1564 eyes). Simulations included one monofocal, one bifocal (eight orientations), one trifocal (four orientations), and a 4-foci design (four orientations)...
September 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28768112/the-disparate-histories-of-binocular-vision-and-binaural-hearing
#14
Nicholas J Wade
Vision and hearing are dependent on disparities of spatial patterns received by two eyes and on time and intensity differences to two ears. However, the experiences of a single world have masked attention to these disparities. While eyes and ears are paired, there has not been parity in the attention directed to their functioning. Phenomena involving binocular vision were commented upon since antiquity whereas those about binaural hearing are much more recent. This history is compared with respect to the experimental manipulations of dichoptic and dichotic stimuli and the instruments used to stimulate the paired organs...
August 2, 2017: Journal of the History of the Neurosciences
https://www.readbyqxmd.com/read/28746813/binocular-mechanisms-of-3d-motion-processing
#15
Lawrence K Cormack, Thaddeus B Czuba, Jonas Knöll, Alexander C Huk
The visual system must recover important properties of the external environment if its host is to survive. Because the retinae are effectively two-dimensional but the world is three-dimensional (3D), the patterns of stimulation both within and across the eyes must be used to infer the distal stimulus-the environment-in all three dimensions. Moreover, animals and elements in the environment move, which means the input contains rich temporal information. Here, in addition to reviewing the literature, we discuss how and why prior work has focused on purported isolated systems (e...
September 15, 2017: Annual Review of Vision Science
https://www.readbyqxmd.com/read/28718747/the-role-of-temporal-disparity-on-audiovisual-integration-in-low-vision-individuals
#16
Stefano Targher, Rocco Micciolo, Valeria Occelli, Massimiliano Zampini
Recent findings have shown that sounds improve visual detection in low vision individuals when the audiovisual stimuli pairs of stimuli are presented simultaneously and from the same spatial position. The present study purports to investigate the temporal aspects of the audiovisual enhancement effect previously reported. Low vision participants were asked to detect the presence of a visual stimulus (yes/no task) presented either alone or together with an auditory stimulus at different stimulus onset asynchronies (SOAs)...
January 1, 2017: Perception
https://www.readbyqxmd.com/read/28700811/probing-for-congenital-nasolacrimal-duct-obstruction
#17
REVIEW
Carisa Petris, Don Liu
BACKGROUND: Congenital nasolacrimal duct obstruction (NLDO) is a common condition causing excessive tearing in the first year of life. Infants present with excessive tearing or mucoid discharge from the eyes due to blockage of the nasolacrimal duct system, which can result in maceration of the skin of the eyelids and local infections, such as conjunctivitis, that may require antibiotics. The incidence of nasolacrimal duct obstruction in early childhood ranges from 5% to 20% and often resolves without surgery...
July 12, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28671146/repetitive-dynamic-stereo-test-improved-processing-time-in-young-athletes
#18
Micha Daniel Schoemann, Matthias Lochmann, Jan Paulus, Georg Michelson
BACKGROUND: Current studies revealed the importance of perceptual training for the treatment of amblyopia. To improve stereo vision on a higher level, visual tasks have to be completed within a limited time window like in repetitive visual function tests. "Processing time" as the reaction time in which the absence or presence of depth was identified correctly, is of better predictive value for perceiving the depth than the stereo threshold only. OBJECTIVE: To examine the long-term effects of repetitive dynamic testing of stereopsis on processing time...
2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/28656672/drilling-into-the-functional-significance-of-stereopsis-the-impact-of-stereoscopic-information-on-surgical-performance
#19
Loulwa M Al-Saud, Faisal Mushtaq, Isra'a Mirghani, Ahmed Balkhoyor, Andrew Keeling, Michael Manogue, Mark A Mon-Williams
PURPOSE: One suggested advantage of human binocular vision is the facilitation of sophisticated motor control behaviours via stereopsis - but little empirical evidence exists to support this suggestion. We examined the functional significance of stereopsis by exploring whether stereopsis is used to perform a highly skilled real-world motor task essential for the occupational practice of dentistry. METHODS: We used a high fidelity virtual reality simulator to study how dentists' performance is affected by the removal of horizontal retinal image disparities under direct and indirect (mirror) observation...
July 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28647543/healthy-eating-and-activity-across-the-lifespan-heal-a-call-to-action-to-integrate-research-clinical-practice-policy-and-community-resources-to-address-weight-related-health-disparities
#20
Jerica M Berge, Margaret Adamek, Caitlin Caspi, Katie A Loth, Amy Shanafelt, Steven D Stovitz, Amanda Trofholz, Katherine Y Grannon, Marilyn S Nanney
Despite intense nationwide efforts to improve healthy eating and physical activity across the lifespan, progress has plateaued. Moreover, health inequities remain. Frameworks that integrate research, clinical practice, policy, and community resources to address weight-related behaviors are needed. Implementation and evaluation of integration efforts also remain a challenge. The purpose of this paper is to: (1) Describe the planning and development process of an integrator entity, HEAL (Healthy Eating and Activity across the Lifespan); (2) present outcomes of the HEAL development process including the HEAL vision, mission, and values statements; (3) define the planned integrator functions of HEAL; and (4) describe the ongoing evaluation of the integration process...
August 2017: Preventive Medicine
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