keyword
MENU ▼
Read by QxMD icon Read
search

fps

keyword
https://www.readbyqxmd.com/read/27920057/acropora-digitifera-encodes-the-largest-known-family-of-fluorescent-proteins-that-has-persisted-during-the-evolution-of-acropora-species
#1
Shiho Takahashi-Kariyazono, Jun Gojobori, Yoko Satta, Kazuhiko Sakai, Yohey Terai
Fluorescent proteins (FPs) are well known and broadly used as bio-imaging markers in molecular biology research. Many FP genes were cloned from anthozoan species and it was suggested that multi-copies of these genes are present in their genomes. However, the full complement of FP genes in any single coral species remained unidentified. In this study, we analyzed the FP genes in two stony coral species. FP cDNA sequences from Acropora digitifera and Acropora tenuis revealed the presence of a multi-gene family with an unexpectedly large number of genes, separated into short-/middle-wavelength emission (S/MWE), middle-/long-wavelength emission (M/LWE), and chromoprotein (CP) clades...
December 5, 2016: Genome Biology and Evolution
https://www.readbyqxmd.com/read/27910534/upgrade-of-the-tangentially-viewing-vacuum-ultraviolet-vuv-telescope-system-for-2d-fluctuation-measurement-in-the-large-helical-device
#2
Z J Wang, T F Ming, X Gao, X D Du, S Ohdachi
A high-speed tangentially viewing vacuum ultraviolet (VUV) telescope system, using an inverse Schwarzschild-type optic system was developed to study fluctuations in the Large Helical Device (LHD). However, for the original system, the sampling rate was restricted to below 2000 Hz due to the low signal to noise (S/N) ratio in the experiment. In order to improve the S/N ratio, upgrade of the system was made. With this upgraded optical system, the maximum framing rate is improved to 6000 fps with a similar spatial resolution...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910451/preliminary-design-of-a-tangentially-viewing-imaging-bolometer-for-nstx-u
#3
B J Peterson, R Sano, M L Reinke, J M Canik, L F Delgado-Aparicio, J D Lore, K Mukai, T K Gray, G G van Eden, M A Jaworski
The infrared imaging video bolometer (IRVB) measures plasma radiated power images using a thin metal foil. Two different designs with a tangential view of NSTX-U are made assuming a 640 × 480 (1280 × 1024) pixel, 30 (105) fps, 50 (20) mK, IR camera imaging the 9 cm × 9 cm × 2 μm Pt foil. The foil is divided into 40 × 40 (64 × 64) IRVB channels. This gives a spatial resolution of 3.4 (2.2) cm on the machine mid-plane. The noise equivalent power density of the IRVB is given as 113 (46) μW/cm(2) for a time resolution of 33 (20) ms...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910347/electron-density-profile-measurements-from-hydrogen-line-intensity-ratio-method-in-versatile-experiment-spherical-torus
#4
YooSung Kim, Yue-Jiang Shi, Jeong-Hun Yang, SeongCheol Kim, Young-Gi Kim, Jeong-Jeung Dang, Seongmoo Yang, Jungmin Jo, Soo-Ghee Oh, Kyoung-Jae Chung, Y S Hwang
Electron density profiles of versatile experiment spherical torus plasmas are measured by using a hydrogen line intensity ratio method. A fast-frame visible camera with appropriate bandpass filters is used to detect images of Balmer line intensities. The unique optical system makes it possible to take images of Hα and Hβ radiation simultaneously, with only one camera. The frame rate is 1000 fps and the spatial resolution of the system is about 0.5 cm. One-dimensional local emissivity profiles have been obtained from the toroidal line of sight with viewing dumps...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27908524/genetic-correlation-between-alcohol-preference-and-conditioned-fear-exploring-a-functional-relationship
#5
Julia A Chester, Marcus M Weera
Post-traumatic stress disorder (PTSD) and alcohol-use disorders have a high rate of co-occurrence, possibly because they are regulated by common genes. In support of this idea, mice selectively bred for high (HAP) alcohol preference show greater fear potentiated startle (FPS), a model for fear-related disorders such as PTSD, compared to mice selectively bred for low (LAP) alcohol preference. This positive genetic correlation between alcohol preference and FPS behavior suggests that the two traits may be functionally related...
November 23, 2016: Alcohol
https://www.readbyqxmd.com/read/27895980/rapid-mesoscale-multiphoton-microscopy-of-human-skin
#6
Mihaela Balu, Hideharu Mikami, Jue Hou, Eric O Potma, Bruce J Tromberg
We present a multiphoton microscope designed for mesoscale imaging of human skin. The system is based on two-photon excited fluorescence and second-harmonic generation, and images areas of ~0.8x0.8 mm(2) at speeds of 0.8 fps (800x800 pixels; 12 frame averages) for high signal-to-noise ratio, with lateral and axial resolutions of 0.5µm and 3.3µm, respectively. The main novelty of this instrument is the design of the scan head, which includes a fast galvanometric scanner, optimized relay optics, a beam expander and high NA objective lens...
November 1, 2016: Biomedical Optics Express
https://www.readbyqxmd.com/read/27894732/tele-assessment-of-the-berg-balance-scale-effects-of-transmission-characteristics
#7
Kavita Venkataraman, Michelle Morgan, Kristopher A Amis, Lawrence R Landerman, Gerald Ch Koh, Kevin Caves, Helen Hoenig
OBJECTIVE: To compare Berg Balance Scale (BBS) rating using videos with differing transmission characteristics against direct in-person rating DESIGN: Repeated measures study for assessment of BBS in eight configurations - in person, high definition video with slow motion review, standard videos with varying bandwidths and frame rates [768 kilobytes per second (kbps) videos at 8,15 and 30 frames per second (fps), 30 fps videos at 128, 384 and 768 kbps] SETTING: Durham VA Medical Center PARTICIPANTS: 45 patients with limitations in one or more of fine motor coordination, gross motor coordination, gait and balance...
November 25, 2016: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27893377/high-performance-cad-ctc-scheme-using-shape-index-multiscale-enhancement-filters-and-radiomic-features
#8
Yacheng Ren, Jingchen Ma, Junfeng Xiong, Lin Lu, Jun Zhao
OBJECTIVE: Computer-aided detection (CAD) systems for computed tomography colonography (CTC) can automatically detect colorectal polyps. The main problem of currently developed CAD-CTC systems is the numerous false positives (FPs) caused by the existence of complicated colon structures (e.g., haustral fold, residual fecal material, inflation tube, and ileocecal valve). This study proposes a CAD-CTC scheme using shape index, multiscale enhancement filters, and radiomic features to address the FP issue...
November 22, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/27892522/sars-cov-fusion-peptides-induce-membrane-surface-ordering-and-curvature
#9
Luis G M Basso, Eduardo F Vicente, Edson Crusca, Eduardo M Cilli, Antonio J Costa-Filho
Viral membrane fusion is an orchestrated process triggered by membrane-anchored viral fusion glycoproteins. The S2 subunit of the spike glycoprotein from severe acute respiratory syndrome (SARS) coronavirus (CoV) contains internal domains called fusion peptides (FP) that play essential roles in virus entry. Although membrane fusion has been broadly studied, there are still major gaps in the molecular details of lipid rearrangements in the bilayer during fusion peptide-membrane interactions. Here we employed differential scanning calorimetry (DSC) and electron spin resonance (ESR) to gather information on the membrane fusion mechanism promoted by two putative SARS FPs...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27878626/reducing-fluoroscopic-radiation-exposure-during-endomyocardial-biopsy-in-pediatric-transplant-recipients
#10
Jeffrey G Gossett, Christina L Sammet, Anya Agrawal, Karen Rychlik, David F Wax
Endomyocardial biopsy (EMB) with fluoroscopy is used for rejection surveillance in pediatric heart transplantation. Lowering frame rate may reduce radiation, but decreases temporal resolution and image quality. We undertook a quality initiative reducing frame rate from 10 frames per second (FPS) to 5 FPS. To assess whether lowering frame rate can reduce radiation exposure without compromising safety, data on EMBs from 9/2009 to 4/2013 without angiography or intervention were reviewed. Effective dose was calculated from dose area product (DAP) and fluoroscopy time...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27874190/the-value-of-outsourcing-selected-cases-in-a-medical-examiner-population-a-10-year-experience
#11
Brandi C McCleskey, Stephanie D Reilly, Dan Atherton
Due to increasing caseloads and inadequate staffing, the burden on Coroner/Medical Examiner Offices to comply with recommended autopsy limits for forensic pathologists (FPs) has been difficult. Since 2006, pathologists at the University of Alabama at Birmingham have performed select autopsies for the Alabama Department of Forensic Sciences. Each case was reviewed by a state FP and scene investigator to determine appropriateness for referral. All referred cases received full postmortem examination including microscopic examination and collection of toxicological samples, and toxicology was ordered by the referring FP as appropriate...
November 22, 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27859614/a-comparison-of-navigators-snap-shot-field-monitoring-and-probe-based-field-model-training-for-correcting-b0-induced-artifacts-in-t2-weighted-images-at-7%C3%A2-t
#12
Joep Wezel, Vincent O Boer, Tijl A van der Velden, Andrew G Webb, Dennis W J Klomp, Maarten J Versluis, Matthias J P van Osch, Anders Garpebring
PURPOSE: To compare methods for estimating B0 maps used in retrospective correction of high-resolution anatomical images at ultra-high field strength. The B0 maps were obtained using three methods: (1) 1D navigators and coil sensitivities, (2) field probe (FP) data and a low-order spherical harmonics model, and (3) FP data and a training-based model. METHODS: Data from nine subjects were acquired while they performed activities inducing B0 field fluctuations. Estimated B0 fields were compared with reference data, and the reductions of artifacts were compared in corrected T2* images...
November 17, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27857286/high-speed-time-resolved-laser-scanning-microscopy-using-the-line-to-pixel-referencing-method
#13
Jiheun Ryu, Jayul Kim, Hyunjun Kim, Jae-Heon Jeong, Hak-Jun Lee, Hongki Yoo, Dae-Gab Gweon
Fluorescence lifetime imaging microscopy (FLIM) is a powerful technique to visualize photophysical characteristics of biological targets. However, conventional FLIM methods have some limitations that restrict obtaining high-precision images in real time. Here, we propose a high-speed time-resolved laser-scanning microscopy by incorporating a novel line-to-pixel referencing method into the previously suggested analog mean-delay (AMD) method. The AMD method dramatically enhances the photon accumulation speed for achieving the certain precision compared to the time-correlated single-photon counting (TCSPC) method while maintaining high photon efficiency...
November 10, 2016: Applied Optics
https://www.readbyqxmd.com/read/27857208/bright-blue-shifted-fluorescent-proteins-with-cys-in-the-gaf-domain-engineered-from-bacterial-phytochromes-fluorescence-mechanisms-and-excited-state-dynamics
#14
Yusaku Hontani, Daria M Shcherbakova, Mikhail Baloban, Jingyi Zhu, Vladislav V Verkhusha, John T M Kennis
Near-infrared fluorescent proteins (NIR FPs) engineered from bacterial phytochromes (BphPs) are of great interest for in vivo imaging. They utilize biliverdin (BV) as a chromophore, which is a heme degradation product, and therefore they are straightforward to use in mammalian tissues. Here, we report on fluorescence properties of NIR FPs with key alterations in their BV binding sites. BphP1-FP, iRFP670 and iRFP682 have Cys residues in both PAS and GAF domains, rather than in the PAS domain alone as in wild-type BphPs...
November 18, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27842591/regulation-of-carotenogenesis-in-the-red-yeast-xanthophyllomyces-dendrorhous-the-role-of-the-transcriptional-co-repressor-complex-cyc8-tup1-involved-in-catabolic-repression
#15
Pamela Córdova, Jennifer Alcaíno, Natalia Bravo, Salvador Barahona, Dionisia Sepúlveda, María Fernández-Lobato, Marcelo Baeza, Víctor Cifuentes
BACKGROUND: The yeast Xanthophyllomyces dendrorhous produces carotenoids of commercial interest, including astaxanthin and β-carotene. Although carotenogenesis in this yeast and the expression profiles of the genes controlling this pathway are known, the mechanisms regulating this process remain poorly understood. Several studies have demonstrated that glucose represses carotenogenesis in X. dendrorhous, suggesting that this pathway could be regulated by catabolic repression. Catabolic repression is a highly conserved regulatory mechanism in eukaryotes and has been widely studied in Saccharomyces cerevisiae...
November 14, 2016: Microbial Cell Factories
https://www.readbyqxmd.com/read/27834877/sugar-composition-analysis-of-fuzi-polysaccharides-by-hplc-ms-n-and-their-protective-effects-on-schwann-cells-exposed-to-high-glucose
#16
Bei-Bei Wang, Jia-Li Wang, Jiang Yuan, Qing-Hua Quan, Rui-Fang Ji, Peng Tan, Jing Han, Yong-Gang Liu
Fuzi has been used to treat diabetic complications for many years in china. In a previous study, we have shown that Fuzi aqueous extract can attenuate Diabetic peripheral neuropathy (DPN) in rats and protect Schwann cells from injury. Thus, the protective effect of Fuzi polysaccharides (FPS) on high glucose-induced SCs and the preliminary mechanism were investigated. Firstly, the FPS were obtained and their monose composition was analyzed by the combination of pre-column derivatization and high performance liquid chromatography coupled with electrospray ionization multi-tandem mass spectrometry (HPLC/ESI-MS(n))...
November 9, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27828351/high-speed-compressive-range-imaging-based-on-active-illumination
#17
Yangyang Sun, Xin Yuan, Shuo Pang
We report a compressive imaging method based on active illumination, which reconstructs a 3D scene at a frame rate beyond the acquisition speed limit of the camera. We have built an imaging prototype that projects temporally varying illumination pattern and demonstrated a joint reconstruction algorithm that iteratively retrieves both the range and high-temporal-frequency information from the 2D low-frame rate measurement. The reflectance and depth-map videos have been reconstructed at 1000 frames per second (fps) from the measurement captured at 200 fps...
October 3, 2016: Optics Express
https://www.readbyqxmd.com/read/27828183/design-and-implementation-of-a-real-time-cim-mimo-optical-camera-communication-system
#18
Wei Huang, Peng Tian, Zhengyuan Xu
A real-time color-intensity modulation multi-input-multi-output (CIM-MIMO) optical camera communication (OCC) system is designed and implemented. It utilizes multiple intensity levels for each color and 3 colors of each RGB LED module of a LED array, to generate M-ary CIM symbols. Signal constellation and training sequences are designed to tackle the system imperfectness. Applying 256-CIM to 192 data-carrying LEDs of a commercial 16 × 16 LED array at a refresh rate of 82.5 Hz and a mobile phone camera at a frame rate of 330 fps, the system achieves a data rate of 126...
October 17, 2016: Optics Express
https://www.readbyqxmd.com/read/27827427/establishing-super-resolution-imaging-for-proteins-in-diatom-biosilica
#19
Philip Gröger, Nicole Poulsen, Jennifer Klemm, Nils Kröger, Michael Schlierf
The intricate, genetically controlled biosilica nano- and micropatterns produced by diatoms are a testimony for biology's ability to control mineral formation (biomineralization) at the nanoscale and regarded as paradigm for nanotechnology. Previously, several protein families involved in diatom biosilica formation have been identified, and many of them remain tightly associated with the final biosilica structure. Determining the locations of biosilica-associated proteins with high precision is, therefore expected to provide clues to their roles in biosilica morphogenesis...
November 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27825546/one-step-radiosynthesis-of-18-f-irs-a-novel-radiotracer-targeting-mutant-egfr-in-nsclc-for-pet-ct-imaging
#20
Zunyu Xiao, Yan Song, Kai Wang, Xilin Sun, Baozhong Shen
EGFR (epidermal growth factor receptor) targeted therapy has shown great success in clinical comparing with chemotherapy in EGFR mutation NSCLCs. Such as, gefitinib, first generation EGFR TKI, has obviously prolonged the FPS (progression free survival) of the subgroup of patients, but to those who did not get a certain mutation in EGFR kinase domain, the outcome is poor. In view of this situation, scientists have synthesized many radiotracers for selecting the right people by PET/CT imaging to NSCLC TKI therapy...
December 15, 2016: Bioorganic & Medicinal Chemistry Letters
keyword
keyword
36786
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"