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https://www.readbyqxmd.com/read/28549320/light-emission-miracle-in-the-sea-and-preeminent-applications-of-bioluminescence-in-recent-new-biotechnology
#1
Sana Sharifian, Ahmad Homaei, Roohullah Hemmati, Khosro Khajeh
Bioluminescence is referred to the light emission by a living organism due to a specific biochemical reaction. This interesting feature of the organisms could highly influences behavioral and ecosystem dynamics. Luminescence, mostly observed in marine species, is generally higher in deep-living genera than in benthic or shallow organisms. However, among creatures living in land, fireflies, beetles, springtails and fungi have shown some bioluminescent activities. Classically, the emission of light is catalyzed by luciferase from a substrate...
May 17, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28546005/fast-epithermal-and-thermal-photoneutron-dosimetry-in-air-and-in-tissue-equivalent-phantom-for-a-high-energy-x-ray-medical-accelerator
#2
Mehdi Sohrabi, Amir Hakimi
Photoneutron (PN) dosimetry in fast, epithermal and thermal energy ranges originated from the beam and albedo neutrons in high-energy X-ray medical accelerators is highly important from scientific, technical, radiation protection and medical physics points of view. Detailed dose equivalents in the fast, epithermal and thermal PN energy ranges in air up to 2m as well as at 35 positions from the central axis of 12 cross sections of the phantom at different depths were determined in 18MV X-ray beams of a Siemens ONCOR accelerator...
May 22, 2017: Zeitschrift Für Medizinische Physik
https://www.readbyqxmd.com/read/28543608/evaluation-of-a-state-based-syndromic-surveillance-system-for-the-classification-and-capture-of-non-fatal-occupational-injuries-and-illnesses-in-new-jersey
#3
Marija Borjan, Margaret Lumia
BACKGROUND: This preliminary study evaluates a real-time syndromic surveillance system to track occupationally-related emergency room visits throughout New Jersey. METHODS: Emergency Department (ED) chief complaint fields were evaluated from 79 of 80 hospitals in NJ in 2014, using work-related keywords and ICD-9 E-codes, to determine its ability to capture non-fatal work-related injuries. Sensitivity analysis and descriptive statistics, were used to evaluate and summarize the occupational injuries identified...
May 23, 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28543069/real-time-dynamic-mr-image-reconstruction-using-compressed-sensing-and-principal-component-analysis-cs-pca-demonstration-in-lung-tumor-tracking
#4
Bryson Dietz, Eugene Yip, Jihyun Yun, B Gino Fallone, Keith Wachowicz
PURPOSE: This work presents a real-time dynamic image reconstruction technique, that combines compressed sensing and principal component analysis (CS-PCA), to achieve real-time adaptive radiotherapy with the use of a linac-magnetic resonance imaging system. METHODS: Six retrospective fully sampled dynamic data sets of patients diagnosed with non-small cell lung cancer were used to investigate the CS-PCA algorithm. Using a database of fully sampled k-space, principal components (PC's) were calculated to aid in the reconstruction of undersampled images...
May 19, 2017: Medical Physics
https://www.readbyqxmd.com/read/28542583/correction-career-performance-trajectories-in-track-and-field-jumping-events-from-youth-to-senior-success-the-importance-of-learning-and-development
#5
Gennaro Boccia, Paolo Moisè, Alberto Franceseschi, Francesco Trova, Davide Panero, Antonio La Torre, Alberto Rainoldi, Federico Schena, Marco Cardinale
[This corrects the article DOI: 10.1371/journal.pone.0170744.].
2017: PloS One
https://www.readbyqxmd.com/read/28540945/3d-measurement-and-simulation-of-surface-acoustic-wave-driven-fluid-motion-a-comparison
#6
Florian Kiebert, Stefan Wege, Julian Massing, Jörg König, Christian Cierpka, Robert Weser, Hagen Schmidt
The characterisation of the fluid motion induced by the acoustic streaming effect is of paramount interest for novel microfluidic devices based on surface acoustic waves (SAWs), e.g. for a detailed description of the achievable mixing efficiency and thus the design of such devices. Here, we present for the first time a quantitative 3D comparison between experimental measurements and numerical simulations of the acoustic streaming induced fluid flow inside a microchannel originating from a SAW. On the one hand, we performed fully three-dimensional velocity measurements using the astigmatism particle tracking velocimetry...
May 25, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28540833/registries-on-peritoneal-surface-malignancies-through-out-the-world-their-use-and-their-options
#7
Victor J Verwaal, Beate Rau, Faek Jamali, François Noël Gilly, Heikki Takala, Ignace de Hingh, Ingvar Syk, Jorg Pelz, Jurgen Mulsow, Kurt van der Speeten, Shigeki Kusamura, Lene Iversen, Faheez Mohamed, Olivier Glehen, Rami Younan, Roman Yarema, Santiago Gonzalez-Moreno, Sarah O'Dwyer, Yukata Yonemura, Paul Sugarbaker
The treatment of peritoneal surface malignancies ranges from palliative care to full cytoreductive surgery (CRS) and Heated Intraperitoneal Chemotherapy HIPEC. Ongoing monitoring of patient recruitment and volume is usually carried out through dedicated registries. With multiple registries available worldwide, we sought to investigate the nature, extent and value of existing worldwide CRS and HIPEC registries. METHODS: A questionnaire was sent out to all known major treatment centres...
April 9, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540811/gadolinium-doped-iron-oxide-nanoparticles-induced-magnetic-field-hyperthermia-combined-with-radiotherapy-increases-tumour-response-by-vascular-disruption-and-improved-oxygenation
#8
Pei-Shin Jiang, Hsin-Yu Tsai, Philip Drake, Fu-Nien Wang, Chi-Shiun Chiang
The gadolinium-doped iron oxide nanoparticles (GdIONP) with greater specific power adsorption rate (SAR) than Fe3O4 was developed and its potential application in tumour therapy and particle tracking were demonstrated in transgenic adenocarcinoma of the mouse prostate C1 (TRAMP-C1) tumours. The GdIONPs accumulated in tumour region during the treatment could be clearly tracked and quantified by T2-weighted MR imaging. The therapeutic effects of GdIONP-mediated hyperthermia alone or in combination with radiotherapy (RT) were also evaluated...
May 5, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540779/planning-optimisation-and-evaluation-of-hyperthermia-treatments
#9
H P Kok, A N T J Kotte, J Crezee
BACKGROUND: Hyperthermia treatment planning using dedicated simulations of power and temperature distributions is very useful to assist in hyperthermia applications. This paper describes an advanced treatment planning software package for a wide variety of applications. METHODS: The in-house developed C++ software package Plan2Heat runs on a Linux operating system. Modules are available to perform electric field and temperature calculations for many heating techniques...
March 8, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28539481/inferring-stratified-parasitoid-dispersal-mechanisms-and-parameters-from-coarse-data-using-mathematical-and-bayesian-methods
#10
Christopher Strickland, Nadiah P Kristensen, Laura Miller
Biological invasions have movement at the core of their success. However, due to difficulties in collecting data, medium- and long-distance dispersal of small insects has long been poorly understood and likely to be underestimated. The agricultural release of parasitic hymenoptera, a group of wasps that are critical for biological pest control, represents a rare opportunity to study the spread of insects on multiple spatial scales. As these insects are typically less than 1 mm in size and are challenging to track individually, a first-time biocontrol release will provide a known spatial position and time of initial release for all individuals that are subsequently collected...
May 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28538298/quantifying-the-high-speed-running-and-sprinting-profiles-of-elite-female-soccer-players-during-competitive-matches-using-an-optical-player-tracking-system
#11
Jocelyn K Mara, Kevin G Thompson, Kate L Pumpa, Stuart Morgan
Mara, JK, Thompson, KG, Pumpa, KL, and Morgan, S. Quantifying the high-speed running and sprinting profiles of elite female soccer players during competitive matches using an optical player tracking system. J Strength Cond Res 31(6): 1500-1508, 2017-The aim of this study was to determine the high-speed running and sprinting profiles of elite female soccer players during competitive matches using a new Optical Player Tracking system. Eight stationary video cameras were positioned at vantage points surrounding the soccer field so that when each camera view was combined, the entire field could be viewed simultaneously...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538142/an-introduction-to-infinite-hmms-for-single-molecule-data-analysis
#12
REVIEW
Ioannis Sgouralis, Steve Pressé
The hidden Markov model (HMM) has been a workhorse of single-molecule data analysis and is now commonly used as a stand-alone tool in time series analysis or in conjunction with other analysis methods such as tracking. Here, we provide a conceptual introduction to an important generalization of the HMM, which is poised to have a deep impact across the field of biophysics: the infinite HMM (iHMM). As a modeling tool, iHMMs can analyze sequential data without a priori setting a specific number of states as required for the traditional (finite) HMM...
May 23, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28538021/global-surgery-current-evidence-for-improving-surgical-care
#13
Jennifer C Fuller, David A Shaye
PURPOSE OF REVIEW: The field of global surgery is undergoing rapid transformation, owing to several recent prominent reports positioning it as a cost-effective means of relieving global disease burden. The purpose of this article is to review the recent advances in the field of global surgery. RECENT FINDINGS: Efforts to grow the global surgical workforce and procedural capacity have focused on innovative methods to increase surgeon training, enhance international collaboration, leverage technology, optimize existing health systems, and safely implement task-sharing...
May 19, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28537490/the-magnetic-field-of-magnetic-resonance-imaging-systems-does-not-affect-cells-labeled-with-micrometer-sized-iron-oxide-particles
#14
Martin Kluge, Annekatrin Leder, Karl Herbert Hillebrandt, Benjamin Struecker, Dominik Geisel, Timm Denecke, Rebeka Dalma Major, Anja Reutzel-Selke, Peter Tang, Steffen Lippert, Christian Schmidt, Johann Pratschke, Igor M Sauer, Nathanael Raschzok
INTRODUCTION: Labeling using iron oxide particles enables cell tracking via magnetic resonance imaging (MRI). However, the magnetic field can affect the particle-labeled cells. Here, we investigated the effects of a clinical MRI system on primary human hepatocytes labeled using micrometer-sized iron oxide particles (MPIOs). METHODS: HuH7 tumor cells were incubated with increasing concentrations of biocompatible, silica-based, micron-sized iron oxide-containing particles (sMPIO; 40 - 160 particles/cell)...
May 24, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28537461/an-extensive-review-on-development-of-eeg-based-computer-aided-diagnosis-systems-for-epilepsy-detection
#15
Jagriti Saini, Maitreyee Dutta
Epilepsy is considered as fourth most prominent neurological disorder in the world that can affect people of all age groups. Currently, around 65 million people throughout the world are suffering from epilepsy. It is evident that electroencephalograph (EEG) signals are most commonly used for detection of epileptic seizures but today many modern techniques have been developed to analyze underlying features of these EEG signals. As EEG contains a large amount of complicated information, so many researchers are trying to develop automatic systems for complete feature extraction...
May 24, 2017: Network: Computation in Neural Systems
https://www.readbyqxmd.com/read/28535478/the-effect-of-billboard-design-specifications-on-driving-a-pilot-study
#16
Hadas Marciano, Pe'erly Setter
Decades of research on the effects of advertising billboards on road accident rates, driver performance, and driver visual scanning behavior, has produced no conclusive findings. We suggest that road safety researchers should shift their focus and attempt to identify the billboard characteristics that are most distracting to drivers. This line of research may produce concrete guidelines for permissible billboards that would be likely to reduce the influence of the billboards on road safety. The current study is a first step towards this end...
May 20, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28535444/passive-detection-of-pb-in-water-using-rock-phosphate-agarose-beads
#17
Harry M Edenborn, Bret H Howard, James I Sams, Dorothy J Vesper, Sherie L Edenborn
In this study, passive detectors for Pb were prepared by immobilizing powdered rock phosphate in agarose beads. Rock phosphate has been used to treat Pb-contaminated waters and soil by fixing the metal as an insoluble pyromorphite mineral. Under lab conditions, Pb was rapidly adsorbed from aqueous solution by the beads over time, consistent with the acidic dissolution of rock phosphate, the precipitation of pyromorphite within the pore space of the agarose gel matrix, and surface exchange reactions. Net accumulation of Pb occurred when beads were exposed to simulated periodic releases of Pb over time...
April 15, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28533016/drodvir-a-resource-for-exploring-the-virome-diversity-in-rodents
#18
Lihong Chen, Bo Liu, Zhiqiang Wu, Qi Jin, Jian Yang
Emerging zoonotic diseases have received tremendous interests in recent years, as they pose a significant threat to human health, animal welfare, and economic stability. A high proportion of zoonoses originate from wildlife reservoirs. Rodents are the most numerous, widespread, and diverse group of mammals on the earth and are reservoirs for many zoonotic viruses responsible for significant morbidity and mortality. A better understanding of virome diversity in rodents would be of importance for researchers and professionals in the field...
May 3, 2017: Journal of Genetics and Genomics, Yi Chuan Xue Bao
https://www.readbyqxmd.com/read/28531809/multifocal-visual-evoked-potentials-in-optic-neuritis-and-multiple-sclerosis-a-review
#19
REVIEW
Gorm Pihl-Jensen, Mathias Falck Schmidt, Jette Lautrup Frederiksen
Multifocal visual evoked potential (mf-VEP) represents a new approach to the classical full field (ff-)VEP with separate responses from up to 60 sectors of the visual field. A thorough literature survey of the use of mf-VEP in optic neuritis (ON) and multiple sclerosis (MS) is presented (38 published studies were retrieved). Mf-VEP provides direct topographical information of specific lesions and facilitates investigations on structural-functional correlations thus providing new methods for exploring the interplay between demyelination, atrophy and remyelination in MS...
April 11, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28528164/mri-derived-myocardial-strain-measures-in-normal-subjects
#20
Ha Q Vo, Thomas H Marwick, Kazuaki Negishi
OBJECTIVES: The aim of this study was to perform a systematic review and meta-analysis to estimate the normal ranges of magnetic resonance imaging (MRI)-based feature tracking (FT) and to identify sources of variations. Similar analyses were also performed for strain encoding, displacement encoding with stimulated echoes, and myocardial tagging. BACKGROUND: MRI-FT is a novel technique for quantification of myocardial deformation using MRI cine images. However, the reported 95% confidence intervals (CIs) from the 2 largest studies have no overlaps...
May 11, 2017: JACC. Cardiovascular Imaging
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