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https://www.readbyqxmd.com/read/28414340/comparison-of-chirped-probe-pulse-and-hybrid-femtosecond-picosecond-coherent-anti-stokes-raman-scattering-for-combustion-thermometry
#1
Daniel R Richardson, Hans U Stauffer, Sukesh Roy, James R Gord
A comparison is made between two ultrashort-pulse coherent anti-Stokes Raman scattering (CARS) thermometry techniques-hybrid femtosecond/picosecond (fs/ps) CARS and chirped-probe-pulse (CPP) fs-CARS-that have become standards for high-repetition-rate thermometry in the combustion diagnostics community. These two variants of fs-CARS differ only in the characteristics of the ps-duration probe pulse; in hybrid fs/ps CARS a spectrally narrow, time-asymmetric probe pulse is used, whereas a highly chirped, spectrally broad probe pulse is used in CPP fs-CARS...
April 10, 2017: Applied Optics
https://www.readbyqxmd.com/read/28411822/label-free-and-sensitive-assay-for-deoxyribonuclease-i-activity-based-on-enzymatically-polymerized-superlong-poly-thymine-hosted-fluorescent-copper-nanoparticles
#2
Lan Luo, Fengzhou Xu, Hui Shi, Xiaoxiao He, Taiping Qing, Yanli Lei, Jinlu Tang, Dinggeng He, Kemin Wang
Deoxyribonuclease I (DNase I) is an important physiological indicator and diagnostic biomarker, but traditional methods for assessing its activity are time-consuming, laborious, and usually radioactive. Herein, by effectively combining the special functions of DNase I and terminal deoxynucleotidyl transferase (TdT), a simple, green, cost-effective, label-free and ultrasensitive assay for DNase I activity has been constructed based on superlong poly(thymine)-hosted copper nanoparticles (poly T-CuNPs). In this strategy, a 3'-phosphorylated DNA primer is designed to block TdT polymerization...
July 1, 2017: Talanta
https://www.readbyqxmd.com/read/28386158/valorisation-to-biogas-of-macroalgal-waste-streams-a-circular-approach-to-bioproducts-and-bioenergy-in-ireland
#3
Silvia Tedesco, Joseph Stokes
Seaweeds (macroalgae) have been recently attracting more and more interest as a third generation feedstock for bioenergy and biofuels. However, several barriers impede the deployment of competitive seaweed-based energy. The high cost associated to seaweed farming and harvesting, as well as their seasonal availability and biochemical composition currently make macroalgae exploitation too expensive for energy production only. Recent studies have indicated a possible solution to aforementioned challenges may lay in seaweed integrated biorefinery, in which a bioenergy and/or biofuel production step ends an extractions cascade of high-value bioproducts...
2017: Chemické Zvesti
https://www.readbyqxmd.com/read/28306169/economic-burden-of-relapsed-or-refractory-multiple-myeloma-results-from-an-international-trial
#4
Don Robinson, Robert Z Orlowski, Michael Stokes, Jianming He, Samuel Huse, Abhishek Chitnis, Britte Kranenburg, Annette Lam
OBJECTIVE: The direct cost of relapsed or refractory multiple myeloma (RRMM) is documented; indirect costs are being explored. Healthcare payers seek cost offsets from therapies that improve clinical outcomes but challenge budgets; employers seek lower absenteeism and better productivity. Study goals were to: 1) Identify direct and indirect economic factors of RRMM and, 2) Explore longitudinal relationships between clinical, economic, and health-related quality of life (HRQoL) assessments...
March 17, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28297968/lattice-boltzmann-simulations-of-microswimmer-tracer-interactions
#5
Joost de Graaf, Joakim Stenhammar
Hydrodynamic interactions in systems composed of self-propelled particles, such as swimming microorganisms and passive tracers, have a significant impact on the tracer dynamics compared to the equivalent "dry" sample. However, such interactions are often difficult to take into account in simulations due to their computational cost. Here, we perform a systematic investigation of swimmer-tracer interaction using an efficient force-counterforce-based lattice-Boltzmann (LB) algorithm [De Graaf et al., J. Chem...
February 2017: Physical Review. E
https://www.readbyqxmd.com/read/28270582/bacteria-getting-into-shape-genetic-determinants-of-e-%C3%A2-coli-morphology
#6
Shawn French, Jean-Philippe Côté, Jonathan M Stokes, Ray Truant, Eric D Brown
Perturbation of cellular processes is a prevailing approach to understanding biology. To better understand the complicated biology that defines bacterial shape, a sensitive, high-content platform was developed to detect multiple morphological defect phenotypes using microscopy. We examined morphological phenotypes across the Escherichia coli K-12 deletion (Keio) collection at the mid-exponential growth phase, revealing 111 deletions perturbing shape. Interestingly, 64% of these were uncharacterized mutants, illustrating the complex nature of shape maintenance and regulation in bacteria...
March 7, 2017: MBio
https://www.readbyqxmd.com/read/28269066/a-method-to-detect-tortuosity-of-vessel-using-non-imaging-ultrasound-approach-in-carotid-structure
#7
Ravindra B Patil, P Krishnamoorthy
Stroke is a leading cause of functional impairments. The typical screening mechanism is to measure localized Peak Systolic Velocity (PSV) and diagnose impending risk associated with stoke by characterizing the PSV values. However, an accurate measurement of PSV using Doppler ultrasound is affected due to the tortuous nature of carotid artery in elder population group as the angle at which acoustic beam strikes the vessel is over or under estimated resulting in improper measure the blood flow velocity. Hence, the proposed approach estimates the degree of tortuosity of the carotid vessel and includes this as calibration parameter to compute an accurate PSV...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28265023/linearized-simulation-of-flow-over-wind-farms-and-complex-terrains
#8
Antonio Segalini
The flow over complex terrains and wind farms is estimated here by numerically solving the linearized Navier-Stokes equations. The equations are linearized around the unperturbed incoming wind profile, here assumed logarithmic. The Boussinesq approximation is used to model the Reynolds stress with a prescribed turbulent eddy viscosity profile. Without requiring the boundary-layer approximation, two new linear equations are obtained for the vertical velocity and the wall-normal vorticity, with a reduction in the computational cost by a factor of 8 when compared with a primitive-variables formulation...
April 13, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28253647/prediction-of-jet-mixing-noise-with-lighthill-s-acoustic-analogy-and-geometrical-acoustics
#9
Carlos R S Ilário, Mahdi Azarpeyvand, Victor Rosa, Rod H Self, Júlio R Meneghini
A computational aeroacoustics prediction tool based on the application of Lighthill's theory is presented to compute noise from subsonic turbulent jets. The sources of sound are modeled by expressing Lighthill's source term as two-point correlations of the velocity fluctuations and the sound refraction effects are taken into account by a ray tracing methodology. Both the source and refraction models use the flow information collected from a solution of the Reynolds Averaged Navier-Stokes equations with a standard k-epsilon turbulence model...
February 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28227283/a-method-to-detect-tortuosity-of-vessel-using-non-imaging-ultrasound-approach-in-carotid-structure
#10
Ravindra B Patil, P Krishnamoorthy, Ravindra B Patil, P Krishnamoorthy, Ravindra B Patil, P Krishnamoorthy
Stroke is a leading cause of functional impairments. The typical screening mechanism is to measure localized Peak Systolic Velocity (PSV) and diagnose impending risk associated with stoke by characterizing the PSV values. However, an accurate measurement of PSV using Doppler ultrasound is affected due to the tortuous nature of carotid artery in elder population group as the angle at which acoustic beam strikes the vessel is over or under estimated resulting in improper measure the blood flow velocity. Hence, the proposed approach estimates the degree of tortuosity of the carotid vessel and includes this as calibration parameter to compute an accurate PSV...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28153774/patterns-of-care-and-survival-outcomes-for-adolescent-and-young-adult-patients-with-testicular-seminoma-in-the-united-states-a-national-cancer-database-analysis
#11
William Stokes, Arya Amini, Paul D Maroni, Elizabeth R Kessler, Claire Stokes, Carrye R Cost, Brian S Greffe, Timothy P Garrington, Arthur K Liu, Nicholas G Cost
INTRODUCTION: Testicular germ cell tumors (GCTs) are the most common solid tumor among adolescent and young adult (AYA) males. AYA patients with GCTs most typically have non-seminoma compared with seminoma, and accordingly there are fewer data reported on the AYA experience with testicular seminoma. OBJECTIVE: To evaluate national trends in postoperative treatment and overall survival (OS) outcomes in testicular seminoma by age group, specifically comparing AYAs with older adults...
January 17, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28068279/identifying-predictors-of-central-sleep-apnea-cheyne-stokes-breathing-in-chronic-heart-failure-a-pathophysiological-approach
#12
Aneliya I Draganova, Kiril V Terziyski, Stefan S Kostianev
Chronic heart failure (CHF) is a major health problem associated with increased mortality, despite modern treatment options. Central sleep apnea (CSA)/Cheyne-Stokes breathing (CSB) is a common and yet largely under-diagnosed co-morbidity, adding significantly to the poor prognosis in CHF because of a number of acute and chronic effects, including intermittent hypoxia, sympathetic overactivation, disturbed sleep architecture and impaired physical tolerance. It is characterized by repetitive periods of crescendo-decrescendo ventilatory pattern, alternating with central apneas and hypopneas...
December 1, 2016: Folia Medica
https://www.readbyqxmd.com/read/28059913/liposomal-bupivacaine-use-in-transversus-abdominis-plane-blocks-reduces-pain-and-postoperative-intravenous-opioid-requirement-after-colorectal-surgery
#13
Audrey L Stokes, Sanjib D Adhikary, Ashley Quintili, Frances J Puleo, Christine S Choi, Christopher S Hollenbeak, Evangelos Messaris
BACKGROUND: Enhanced recovery protocols frequently use multimodal postoperative analgesia to improve postoperative outcomes in patients undergoing colorectal surgery. OBJECTIVE: The purpose of this study was to evaluate liposomal bupivacaine use in transversus abdominis plane blocks on postoperative pain scores and opioid use after colorectal surgery. DESIGN: This was a retrospective cohort study comparing outcomes between patients receiving nonliposomal anesthetic (n = 104) and liposomal bupivacaine (n = 303) blocks...
February 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28052510/plant-diversity-enhances-moth-diversity-in-an-intensive-forest-management-experiment
#14
Heather T Root, Jake Verschuyl, Thomas Stokely, Paul Hammond, Melissa A Scherr, Matthew G Betts
Intensive forest management (IFM) promises to help satisfy increasing global demand for wood but may come at the cost of local reductions to forest biodiversity. IFM often reduces early seral plant diversity as a result of efforts to eliminate plant competition with crop trees. If diversity is a function of bottom-up drivers, theory predicts that specialists at lower trophic levels (e.g., insect herbivores) should be particularly sensitive to reductions in plant diversity. We conducted a stand-level experiment to test bottom-up controls on moth community structure, as mediated by degrees of forest management intensity...
January 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28005844/random-brillouin-fiber-laser-for-tunable-ultra-narrow-linewidth-microwave-generation
#15
Dao Xiang, Ping Lu, Yanping Xu, Liang Chen, Xiaoyi Bao
Studies about random lasing phenomena taking place in disordered structures with amplification are gaining great interest, as they can support dual wavelength lasing without cavity length restriction and, hence, the tunable beat frequency in a microwave can be created in a random cavity and be amplified for applications in the information and communication technology. Here, we present a novel random Brillouin fiber laser scheme using the stimulated Brillouin scattering as gain and strong Rayleigh scattering feedback (10 km) in the single-mode fiber...
October 15, 2016: Optics Letters
https://www.readbyqxmd.com/read/27995368/cost-of-informal-care-for-patients-with-cardiovascular-disease-or-diabetes-current-evidence-and-research-challenges
#16
REVIEW
Heesoo Joo, Ping Zhang, Guijing Wang
PURPOSE: Patients with cardiovascular disease (CVD) or diabetes often require informal care. The burden of informal care, however, was not fully integrated into economic evaluation. We conducted a literature review to summarize the current evidence on economic burden associated with informal care imposed by CVD or diabetes. METHODS: We searched EconLit, EMBASE, and PubMed for publications in English during the period of 1995-2015. Keywords for the search were informal care cost, costs of informal care, informal care, and economic burden...
December 19, 2016: Quality of Life Research
https://www.readbyqxmd.com/read/27910659/the-multi-spectral-line-polarization-mse-system-on-alcator-c-mod
#17
R T Mumgaard, S D Scott, M Khoury
A multi-spectral line-polarization motional Stark effect (MSE-MSLP) diagnostic has been developed for the Alcator C-Mod tokamak wherein the Stokes vector is measured in multiple wavelength bands simultaneously on the same sightline to enable better polarized background subtraction. A ten-sightline, four wavelength MSE-MSLP detector system was designed, constructed, and qualified. This system consists of a high-throughput polychromator for each sightline designed to provide large étendue and precise spectral filtering in a cost-effective manner...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27900170/low-fitness-low-body-mass-and-prior-injury-predict-injury-risk-during-military-recruit-training-a-prospective-cohort-study-in-the-british-army
#18
Mark Robinson, Andrew Siddall, James Bilzon, Dylan Thompson, Julie Greeves, Rachel Izard, Keith Stokes
BACKGROUND: Injuries sustained by military recruits during initial training impede training progression and military readiness while increasing financial costs. This study investigated training-related injuries and injury risk factors among British Army infantry recruits. METHODS: Recruits starting infantry training at the British Army Infantry Training Centre between September 2008 and March 2010 were eligible to take part. Information regarding lifestyle behaviours and injury history was collected using the Military Pre-training Questionnaire...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27857406/joint-cd-and-pmd-monitoring-based-on-a-pair-of-low-bandwidth-coherent-receivers
#19
Yuli Chen, Qi Sui, Zhaohui Li, Zihao Liang, Weiping Liu
A joint chromatic dispersion (CD) and 1st order polarization mode dispersion (PMD) monitoring technique for both a coherent and a non-coherent single carrier system based on a pair of cost effective low-bandwidth coherent receivers is proposed and experimentally demonstrated. By jointly detecting the narrow band around ± 1/2 baud rate, the CD and PMD can be estimated simultaneously by time domain correlation and Stokes space rotational angle recovery, respectively. The CD estimation range is theoretically infinite and the PMD estimation range is limited to the maximum of 1/2 symbol period...
November 14, 2016: Optics Express
https://www.readbyqxmd.com/read/27779114/novel-one-pot-and-facile-room-temperature-synthesis-of-gold-nanodots-and-application-as-highly-sensitive-and-selective-probes-for-cyanide-detection
#20
Nagamalai Vasimalai, Maria T Fernandez-Arguelles
Highly fluorescent gold nanodots have been synthesized through a novel rapid, facile and one-pot room temperature route using trithiocyanuric acid as mild reducing agent and surface ligand. The proposed synthesis overcomes limitations of other synthetic routes in terms of cost, time, complexity and environmental risks, and gives rise to highly fluorescent gold nanodots within 10 min at room temperature, with a maximum emission wavelength at 623 nm and a large Stokes shift (213 nm). Moreover, the synthesized gold nanodots showed a large emission QY (9...
November 25, 2016: Nanotechnology
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