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https://www.readbyqxmd.com/read/28549092/the-effect-of-spectacle-lenses-containing-peripheral-defocus-on-refractive-error-and-horizontal-eye-shape-in-the-guinea-pig
#1
Hannah E Bowrey, Guang Zeng, Dennis Y Tse, Amelia J Leotta, Yi Wu, Chi-Ho To, Christine F Wildsoet, Sally A McFadden
Purpose: It has been proposed that the peripheral retina, responding to local optical defocus, contributes to myopia and associated altered eye growth in humans. To test this hypothesis, we measured the changes in central (on-axis) and peripheral ocular dimensions in guinea pigs wearing a concentric bifocal spectacle lens design with power restricted to the periphery. Methods: Five groups of guinea pigs (n = 83) wore either a unifocal (UF) spectacle lens (-4, 0, or +4 Diopters [D]), or a peripheral defocus (PF) spectacle lens that had a plano center (diameter of 5 mm) with either -4 or +4 D in the surround (-4/0 or +4/0 D)...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28546969/modification-of-infant-hypothyroidism-and-phenylketonuria-screening-program-using-electronic-tools
#2
Behjat Taheri, Asefeh Haddadpoor, Mahmood Mirkhalafzadeh, Fariba Mazroei, Pezhman Aghdak, Mehran Nasri, Gholamreza Bahrami
BACKGROUND: Congenital hypothyroidism and phenylketonuria (PKU) are the most common cause for preventable mental retardation in infants worldwide. Timely diagnosis and treatment of these disorders can have lasting effects on the mental development of newborns. However, there are several problems at different stages of screening programs that along with imposing heavy costs can reduce the precision of the screening, increasing the chance of undiagnosed cases which in turn can have damaging consequences for the society...
2017: Journal of Education and Health Promotion
https://www.readbyqxmd.com/read/28546332/establishing-177-lu-psma-617-radioligand-therapy-in-a-syngeneic-model-of-murine-prostate-cancer
#3
Wolfgang P Fendler, Andreea D Stuparu, Susan Evans-Axelsson, Katharina Lückerath, Liu Wei, Woosuk Kim, Soumya Poddar, Jonathan Said, Caius G Radu, Matthias Eiber, Johannes Czernin, Roger Slavik, Ken Herrmann
Clinical (177)Lu-PSMA-617 radioligand therapy (RLT) is applied in advanced stage prostate cancer. However, to the best of our knowledge murine models to study the biological effects of various activity levels have not been established. AIM: To optimize specific and total activity for (177)Lu-PSMA-617 RLT in a syngeneic model of murine prostate cancer. Methods: 0.1x106 murine reconstituted, oncogene-driven prostate cancer cells (RM1), transduced to express human prostate-specific membrane antigen (PSMA), were injected into the left flank of C57Bl6 immunocompetent mice...
May 25, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28546307/the-right-lateral-cerebellum-represents-linguistic-predictability
#4
Elise Lesage, Peter C Hansen, R Chris Miall
Mounting evidence indicates that posterolateral portions of the cerebellum (right Crus I/II) contribute to language processing, but the nature of this role remains unclear. Based on a well-supported theory of cerebellar motor function, which ascribes to the cerebellum a role in short-term prediction through internal modeling, we hypothesize that right cerebellar Crus I/II supports prediction of upcoming sentence content.We tested this hypothesis using event-related fMRI in human subjects by manipulating the predictability of written sentences...
May 25, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28545245/multimodal-bio-inspired-tactile-sensing-module-for-surface-characterization
#5
Thiago Eustaquio Alves de Oliveira, Ana-Maria Cretu, Emil M Petriu
Robots are expected to recognize the properties of objects in order to handle them safely and efficiently in a variety of applications, such as health and elder care, manufacturing, or high-risk environments. This paper explores the issue of surface characterization by monitoring the signals acquired by a novel bio-inspired tactile probe in contact with ridged surfaces. The tactile module comprises a nine Degree of Freedom Microelectromechanical Magnetic, Angular Rate, and Gravity system (9-DOF MEMS MARG) and a deep MEMS pressure sensor embedded in a compliant structure that mimics the function and the organization of mechanoreceptors in human skin as well as the hardness of the human skin...
May 23, 2017: Sensors
https://www.readbyqxmd.com/read/28543951/determination-of-genetic-relatedness-from-low-coverage-human-genome-sequences-using-pedigree-simulations
#6
Michael D Martin, Flora Jay, Sergi Castellano, Montgomery Slatkin
We develop and evaluate methods for inferring relatedness among individuals from low-coverage DNA sequences of their genomes, with particular emphasis on sequences obtained from fossil remains. We suggest the major factors complicating the determination of relatedness among ancient individuals are sequencing depth, the number of overlapping sites, the sequencing error rate, and the presence of contamination from present-day genetic sources. We develop a theoretical model that facilitates the exploration of these factors and their relative effects, via measurement of pairwise genetic distances, without calling genotypes, and determine the power to infer relatedness under various scenarios of varying sequencing depth, present-day contamination, and sequencing error...
May 25, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28543542/molecularly-imprinted-solid-phase-extraction-coupled-with-lc-apci-ms-ms-for-the-selective-determination-of-serum-cholesterol
#7
Marcella Matos Cordeiro Borges, Hanna Leijoto de Oliveira, Keyller Bastos Borges
The assessment of selective molecularly imprinted solid-phase extraction (MISPE) for clean-up and extraction of cholesterol (CHO) from bovine and human serum samples was evaluated. Two molecular imprinted polymers (MIP) based on organic and inorganic/organic (hybrid) materials were obtained and compared regarding recovery and selectivity toward CHO. Optimum chromatographic separation between the CHO and its isobaric compound lathosterol (LATHO) has been achieved within 15 min using an Agilent Poroshell 120 EC-C18 column (120 mm × 3...
May 24, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28541739/visualization-of-large-scale-narrative-data-describing-human-error
#8
William J Irwin, Saul D Robinson, Stephen M Belt
Objective Introduced is a visual data exploration technique for compiling, reducing, organizing, visually rendering, and filtering text-based narratives for detailed analysis. Background The analysis of data sets provides an increasingly difficult problem. The method of visual representation is considered an effective tool in many applications. The focus of this study was to determine if a latent semantic analysis-based projection of narrative data into a geographic information systems software program provided a useful tool for reducing and organizing large sums of narrative data for analysis...
June 2017: Human Factors
https://www.readbyqxmd.com/read/28541210/walking-gait-step-length-asymmetry-induced-by-handheld-device
#9
Mahdi Abid, Valerie Renaudin, Yannick Aoustin, Eric Le Carpentier, Thomas Robert
The modeling and feature extraction of human gait motion are crucial in biomechanics studies, human localization and robotics applications. Recent studies in pedestrian navigation aim at extracting gait features based on the data of low-cost sensors embedded in handheld devices such as smartphones. The general assumption in Pedestrian Dead Reckoning (PDR) strategy for navigation application is that the presence of a device in hand does not impact the gait symmetry and that all steps are identical. This hypothesis, which is used to estimate the traveled distance, is investigated in this paper with an experimental study...
May 18, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28541121/investigation-of-the-binding-and-simultaneous-quantifications-of-propanil-and-bromoxynil-herbicide-concentrations-in-human-serum-albumin
#10
Eric Appah, Brianda Elzey, Sayo O Fakayode
This study reported the use of UV-visible and fluorescence spectroscopy and partial-least-square (PLS) multivariate regression for accurate and simultaneous quantifications of two widely used herbicides, propanil, 3',4'-dichloropropionanilide (PPL) and bromoxynil, 3,5-dibromo-4-hydroxybenzonitrile (BXL) in human serum albumin (HSA) at physiological conditions. The binding affinity and thermodynamic properties of PPL-HSA and BXL-HSA complexes were also investigated. Partial-least-square (PLS) regression was used to collate the variability in the absorption or emission spectra of PPL-HSA and BXL-HSA complexes with PPL and/or BXL concentrations in HSA samples...
May 25, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28540699/long-fragment-polymerase-chain-reaction
#11
Eng Wee Chua, Simran Maggo, Martin A Kennedy
Polymerase chain reaction (PCR) is an oft-used preparatory technique in amplifying specific DNA regions for downstream analysis. The size of an amplicon was initially limited by errors in nucleotide polymerization and template deterioration during thermal cycling. A variant of PCR, designated long-range PCR, was devised to counter these drawbacks and enable the amplification of large fragments exceeding a few kb. In this chapter we describe a protocol for long-range PCR, which we have adopted to obtain products of 6...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28540465/technology-induced-errors-associated-with-computerized-provider-order-entry-software-for-older-patients
#12
Manuel Vélez-Díaz-Pallarés, Ana María Álvarez Díaz, Teresa Gramage Caro, Noelia Vicente Oliveros, Eva Delgado-Silveira, María Muñoz García, Alfonso José Cruz-Jentoft, Teresa Bermejo-Vicedo
Background The introduction of new technologies in the prescribing process has seen the emergence of new types of medication errors. Objective To determine the prevalence and consequences of technology-induced prescription errors associated with a computerized provider order entry (CPOE) system in hospitalized older patients. Setting Patients 65 years or older admitted to the Departments of Internal Medicine, General Surgery, and Vascular Surgery of a tertiary hospital. Method Prospective observational 6-month study...
May 24, 2017: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/28539941/unresolved-bereavement-and-other-mental-health-problems-in-parents-of-the-sewol-ferry-accident-after-18-months
#13
Hyu Jung Huh, Seung Huh, So Hee Lee, Jeong-Ho Chae
OBJECTIVE: This study examined the overall mental health consequences of the bereaved parents after the Sewol ferry accident. METHODS: Eighty-four bereaved parents participated in the study. Self-report scales assessing the severity of psychiatric symptoms and other related psychosomatic problems were used at 18 months following the accident. Univariate descriptive statistics and regression analyses were performed to report the prevalence, severity, and correlates of psychiatric symptoms...
May 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28539730/near-infrared-spectroscopy-as-a-process-analytical-technology-tool-for-monitoring-the-parching-process-of-traditional-chinese-medicine-based-on-two-kinds-of-chemical-indicators
#14
Kaiyue Li, Weiying Wang, Yanping Liu, Su Jiang, Guo Huang, Liming Ye
BACKGROUND: The active ingredients and thus pharmacological efficacy of traditional Chinese medicine (TCM) at different degrees of parching process vary greatly. OBJECTIVE: Near-infrared spectroscopy (NIR) was used to develop a new method for rapid online analysis of TCM parching process, using two kinds of chemical indicators (5-(hydroxymethyl) furfural [5-HMF] content and 420 nm absorbance) as reference values which were obviously observed and changed in most TCM parching process...
April 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28539717/caspase-mediated-apoptotic-effects-of-ebenus-boissieri-barbey-extracts-on-human-cervical-cancer-cell-line-hela
#15
Ece Simsek, Nilufer Imir, Esra Arslan Aydemir, Ramazan Suleyman Gokturk, Erdem Yesilada, Kayahan Fiskin
BACKGROUND: Ebenus boissieri Barbey is an Antalya, Turkey-endemic plant belonging to Fabaceae family. The aerial parts and the roots of E. boissieri Barbey were used in this study. OBJECTIVE: In the present study, we have examined the apoptotic effects of hydroalcoholic extracts of E. boissieri Barbey in human cervical cancer cell line HeLa. MATERIALS AND METHODS: To determine the cytotoxic effect, cells were treated with various concentrations of extracts for 24, 48, and 72 h incubation periods...
April 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28537275/a-rare-variant-test-for-high-dimensional-data
#16
Marika Kaakinen, Reedik Mägi, Krista Fischer, Jani Heikkinen, Marjo-Riitta Järvelin, Andrew P Morris, Inga Prokopenko
Genome-wide association studies have facilitated the discovery of thousands of loci for hundreds of phenotypes. However, the issue of missing heritability remains unsolved for most complex traits. Locus discovery could be enhanced with both improved power through multi-phenotype analysis (MPA) and use of a wider allele frequency range, including rare variants (RVs). MPA methods for single-variant association have been proposed, but given their low power for RVs, more efficient approaches are required. We propose multi-phenotype analysis of rare variants (MARV), a burden test-based method for RVs extended to the joint analysis of multiple phenotypes through a powerful reverse regression technique...
May 24, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28536752/pharmacists-assessment-of-the-difficulty-and-frequency-of-ethical-issues-encountered-in-community-pharmacy-settings
#17
Tatjana Crnjanski, Dusanka Krajnovic, Mirko Savic
Researching ethical problems and their frequency could give us a complex picture and greater insight into the types of ethical issues that pharmacists face in providing health care. The overall aim of this study was to assess the pharmacist's perception of difficulty and frequency of selected ethical issues encountered by the community pharmacists in their everyday practice. A quantitative cross sectional multicenter study was performed using a validated survey instrument - Ethical Issue Scale for Community Pharmacy (EISP)...
May 23, 2017: Science and Engineering Ethics
https://www.readbyqxmd.com/read/28536355/novel-computerized-method-for-measurement-of-retinal-vessel-diameters
#18
Hichem Guedri, Mariem Ben Abdallah, Fraj Echouchene, Hafedh Belmabrouk
Several clinical studies reveal the relationship between alterations in the topologies of the human retinal blood vessel, the outcrop and the disease evolution, such as diabetic retinopathy, hypertensive retinopathy, and macular degeneration. Indeed, the detection of these vascular changes always has gaps. In addition, the manual steps are slow, which may be subjected to a bias of the perceiver. However, we can overcome these troubles using computer algorithms that are quicker and more accurate. This paper presents and investigates a novel method for measuring the blood vessel diameter in the retinal image...
March 27, 2017: Biomedicines
https://www.readbyqxmd.com/read/28534858/an-adaptive-orientation-estimation-method-for-magnetic-and-inertial-sensors-in-the-presence-of-magnetic-disturbances
#19
Bingfei Fan, Qingguo Li, Chao Wang, Tao Liu
Magnetic and inertial sensors have been widely used to estimate the orientation of human segments due to their low cost, compact size and light weight. However, the accuracy of the estimated orientation is easily affected by external factors, especially when the sensor is used in an environment with magnetic disturbances. In this paper, we propose an adaptive method to improve the accuracy of orientation estimations in the presence of magnetic disturbances. The method is based on existing gradient descent algorithms, and it is performed prior to sensor fusion algorithms...
May 19, 2017: Sensors
https://www.readbyqxmd.com/read/28534068/trust-in-haptic-assistance-weighting-visual-and-haptic-cues-based-on-error-history
#20
Tricia L Gibo, Winfred Mugge, David A Abbink
To effectively interpret and interact with the world, humans weight redundant estimates from different sensory cues to form one coherent, integrated estimate. Recent advancements in physical assistance systems, where guiding forces are computed by an intelligent agent, enable the presentation of augmented cues. It is unknown, however, if cue weighting can be extended to augmented cues. Previous research has shown that cue weighting is determined by the reliability (inversely related to uncertainty) of cues within a trial, yet augmented cues may also be affected by errors that vary over trials...
May 22, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
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