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Patient safety and stethoscopes
submitted by orreboso 25 minutes ago - Topic: Health
It has been suggested that the use of stethoscopes may transmit infection between patients and yet stethoscope cleaning protocols lack consistency of guidance as to where, when and how stethoscopes should be cleaned. We have assessed the difference in microbiological colonisation between non-dedicated and patient dedicated stethoscopes and between the stethoscope diaphragm and neck. An observat...



Innovative practical approaches for preventing the transmission of tuberculosis in resource limited health care settings
submitted by orreboso 25 minutes ago - Topic: Health
Airborne infection control at health care settings remains a low priority especially in public health settings in India. Recent events of upsurge in cases of tuberculosis (TB), Drug resistant Tuberculosis (DRTB) and reported occurrence of health care workers (HCW) diagnosed with TB and DRTB in Maharashtra have highlighted the need to implement airborne infection control practices. Airborne infe...

Aftereffect of motion-in-depth based on binocular cues: Effects of adaptation duration, interocular correlation, and temporal correlation
submitted by aboloji 25 minutes ago - Topic: Health
There are at least two possible binocular cues to motion-in-depth, namely disparity change over time and interocular velocity differences. There has been significant controversy about their relative contributions to the perception of motion-in-depth. In the present study, we used the technique of selective adaptation to address this question. In Experiment 1, we found that adaptation to motion-...

Crossing the line: Estimations of line length in the Oppel-Kundt illusion
submitted by aboloji 25 minutes ago - Topic: Health
In the Oppel-Kundt illusion, one of the oldest and least understood geometrical visual illusions, a line subdivided by a series of short orthogonal ticks appears longer than an identical line without these. Paradoxically, bisecting a long line with a single tick leads to perceived shortening of the line. We have systematically investigated the effects of adding 1 to 12 ticks on perceived line l...

Asymmetric global motion integration in drifting Gabor arrays
submitted by aboloji 26 minutes ago - Topic: Health
We examined how ambiguous motion signals are integrated over space to support the unambiguous perception of global motion. The motion of a Gaussian windowed drifting sine grating (Gabor) is consistent with an infinite number of grating velocities. To extract the consistent global motion of multi-Gabor arrays, the visual system must integrate ambiguous motion signals from disparate regions of vi...



Size determines whether specialized expert processes are engaged for recognition of faces
submitted by aboloji 26 minutes ago - Topic: Health
Many influential models of face recognition postulate specialized expert processes that are engaged when viewing upright, own-race faces, as opposed to a general-purpose recognition route used for nonface objects and inverted or other-race faces. In contrast, others have argued that empirical differences do not stem from qualitatively distinct processing. We offer a potential resolution to this...

A single auditory tone alters the perception of multiple visual events
submitted by aboloji 26 minutes ago - Topic: Health
We aimed to show that a single auditory tone crossmodally affects multiple visual events using a multiple stream/bounce display (SBD), consisting of two disk pairs moving toward each other at equal speeds, coinciding, and then moving apart in a two-dimensional (2-D) display. The temporal offsets were manipulated between the coincidences of the disk pairs (0 to ±240 ms) by staggering motion ons...


An experimental method for the assessment of color simulation tools
submitted by aboloji 26 minutes ago - Topic: Health
The Simulcheck method for evaluating the accuracy of color simulation tools in relation to dichromats is described and used to test three color simulation tools: Variantor, Coblis, and Vischeck. A total of 10 dichromats (five protanopes, five deuteranopes) and 10 normal trichromats participated in the current study. Simulcheck includes two psychophysical tasks: the Pseudoachromatic Stimuli Iden...

Isolation and characterization of a subtype C avian metapneumovirus circulating in Muscovy ducks in China
submitted by chaanshiin 33 minutes ago - Topic: Agriculture
Subtype C avian metapneumovirus (aMPV-C), is an important pathogen that can cause egg-drop and acute respiratory diseases in poultry. To date, aMPV-C infection has not been documented in Muscovy ducks in China. Here, we isolated and characterized an aMPV-C, designated S-01, which has caused severe respiratory disease and noticeable egg drop in Muscovy duck flocks in south China since 2010. Elec...


An investigation on chloroprene-compatibilized acrylonitrile butadiene rubber/high density polyethylene blends
submitted by soroh 35 minutes ago - Topic: Biology
Blends of acrylonitrile butadiene rubber/high density polyethylene (NBR/HDPE) compatibilized by Chloroprene rubber (CR) were prepared. A fixed quantity of industrial waste such as marble waste (MW, 40phr) was also included. The effect of the blend ratio and CR on cure characteristics, mechanical and swelling properties of MW-filled NBR/HDPE blends was investigated. The results showed that the M...

Performance and emission characteristics of the thermal barrier coated SI engine by adding argon inert gas to intake mixture
submitted by soroh 35 minutes ago - Topic: Biology
Dilution of the intake air of the SI engine with the inert gases is one of the emission control techniques like exhaust gas recirculation, water injection into combustion chamber and cyclic variability, without scarifying power output and/or thermal efficiency (TE). This paper investigates the effects of using argon (Ar) gas to mitigate the spark ignition engine intake air to enhance the perfor...


Residue analysis of orthosulfamuron herbicide in fatty rice using liquid chromatography–tandem mass spectrometry
submitted by soroh 35 minutes ago - Topic: Biology
In the present study, orthosulfamuron residues were extracted from fatty (unpolished) rice and rice straw using a modified QuEChERS method and analyzed using liquid chromatography–tandem mass spectrometry. The matrix-matched calibration was linear over the concentration ranges of 0.01–2.0mg/kg with determination coefficient (R 2)⩾0.997. The recovery rates at two fortification levels (0.1 ...

Mass size distributions of elemental aerosols in industrial area
submitted by soroh 35 minutes ago - Topic: Biology
Outdoor aerosol particles were characterized in industrial area of Samalut city (El-minia/Egypt) using low pressure Berner cascade impactor as an aerosol sampler. The impactor operates at 1.7m3/h flow rate. Seven elements were investigated including Ca, Ba, Fe, K, Cu, Mn and Pb using atomic absorption technique. The mean mass concentrations of the elements ranged from 0.42ng/m3 (for Ba) to 89.6...

Non-uniform cosine modulated filter banks using meta-heuristic algorithms in CSD space
submitted by soroh 36 minutes ago - Topic: Biology
This paper presents an efficient design of non-uniform cosine modulated filter banks (CMFB) using canonic signed digit (CSD) coefficients. CMFB has got an easy and efficient design approach. Non-uniform decomposition can be easily obtained by merging the appropriate filters of a uniform filter bank. Only the prototype filter needs to be designed and optimized. In this paper, the prototype filte...

Functionalized Formazans: A Review on Recent Progress in Their Pharmacological Activities
submitted by soroh 36 minutes ago - Topic: Biology
This review provides an up to date information about the diverse pharmaceutical activities of formazans. The bibliography includes 97 references which have been published during the period from 1980 to 2013. The covered biological activities of the title compounds include antioxidant, anticonvulsant, therapeutic, anthelmintic, anti-tubercular, antiviral, anti-inflammatory, anticancer, anti-HIV,...