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93 papers found.
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Noninvasive low-cycle fatigue characterization at high depth with photoacoustic eigen-spectrum analysis

In this work, photoacoustic eigen-spectrum analysis was proposed for noninvasively characterizing the mechanical properties of materials. We theoretically predicted the relationship between the photoacoustic eigen-spectra of cylindrical optical absorbers and their mechanical properties. Experimental measurements of eigen-spectra extracted from photoacoustic coda waves agreed well...

Influence of overnight orthokeratology lens fitting decentration on corneal topography reshaping

BackgroundThis retrospective study was designed to investigate the sole influence of orthokeratology (OK) lens fitting decentration on the Zernike coefficients of the reshaped anterior corneal surface.MethodsThis study comprised a review of 106 right eyes and measurements of corneal topography both before OK and at 1-month follow-up visit. A routine was designed to calculate...

Zinc oxide nanorod field effect transistor for long-time cellular force measurement

Mechanical forces generated by cells are known to influence a vast range of cellular functions ranging from receptor signaling and transcription to differentiation and proliferation. We report a novel measurement approach using zinc oxide nanorods as a peeping transducer to monitor dynamic mechanical behavior of cellular traction on surrounding substrate. We develop a ZnO nanorod...

Structure and electrochemical performance of BaLi2−x Na x Ti6O14 (0≤x≤2) as anode materials for lithium-ion battery

A series of BaLi2−x Na x Ti6O14(0≤x≤2) compounds as lithium storage materials were synthesized by a facile solid-state method. X-ray diffraction Rietveld refinement shows that the Bragg positions correspond to the BaLi2Ti6O14, indicating a successful preparation. The Na+ ions doped BaLi2-Ti6O14 compounds have larger unit-cell volume than the pristine one because ionic radius of...

ZnO Nanowire-Based Corona Discharge Devices Operated Under Hundreds of Volts

Minimizing the voltage of corona discharges, especially when using nanomaterials, has been of great interest in the past decade or so. In this paper, we report a new corona discharge device by using ZnO nanowires operated in atmospheric air to realize continuous corona discharge excited by hundreds of volts. ZnO nanowires were synthesized on microelectrodes using electric-field...

Effect of shrouding CH4 flow rate on flow field and stirring ability of coherent jet in steelmaking process

Characteristics of flow field and stirring ability of coherent jet with various shrouding CH4 flow rates on the molten bath were studied by combustion experiment and numerical simulation. The axial velocity and total temperature distributions of coherent jet under hot (1700 K) and cold (298 K) ambient condition were analyzed. The Eddy Dissipation Concept model was used in...

Disability, and social and economic inclusion: who is in and out of the Australian National Disability Insurance Scheme?

Labour Studies, Flinders University of South Australia, GPO Box 2100, Adelaide, SA 5001, Australia, AU X close Rong Zhu National Institute of Labour Studies, Flinders University of South

Nanostructured gold microelectrodes for SERS and EIS measurements by incorporating ZnO nanorod growth with electroplating

Precision Instrument, Tsinghua University, Beijing 100084, ChinaXianli Zong, Rong Zhu & Xiaoliang Guo AuthorsSearch for Xianli Zong in:Nature Research journals • PubMed • Google ScholarSearch for Rong Zhu ... . X.L. and X.G. performed the experiments. X.Z. and R.Z. wrote the paper. Competing interests The authors declare no competing financial interests. Corresponding author Correspondence to Rong Zhu

Activation of HIV-1 expression in latently infected CD4+ T cells by the small molecule PKC412

Background HIV-1 latency is a major obstacle for HIV-1 eradication. Extensive efforts are being directed toward the reactivation of latent HIV reservoirs with the aim of eliminating latently infected cells via the host immune system and/or virus-mediated cell lysis. Results We screened over 1,500 small molecules and kinase inhibitors and found that a small molecule, PKC412...

Activation of HIV-1 expression in latently infected CD4+ T cells by the small molecule PKC412

HIV-1 latency is a major obstacle for HIV-1 eradication. Extensive efforts are being directed toward the reactivation of latent HIV reservoirs with the aim of eliminating latently infected cells via the host immune system and/or virus-mediated cell lysis. We screened over 1,500 small molecules and kinase inhibitors and found that a small molecule, PKC412 (midostaurin, a broad...

Development of a novel individualized warfarin dose algorithm based on a population pharmacokinetic model with improved prediction accuracy for Chinese patients after heart valve replacement

-rong ZHU and Feng YU designed the research; Yu- warfarin dose and INR response with respect to variations in CYP2C9, bin ZHU and Xian-hua H ONG performed the experi- VKORC1, and age. Clin Pharmacol Ther

Mechanical Properties of a Human Eardrum at High Strain Rates After Exposure to Blast Waves

The mechanical properties of a human tympanic membrane (TM) or eardrum were characterized at high strain rates after multiple exposures to blast waves. Human cadaveric temporal bones were subjected to blast waves at first, then TM strip specimens were prepared either along the radial or the circumferential direction. A highly sensitive miniature split Hopkinson tension bar was...

A Biomimetic Silk Fibroin/Sodium Alginate Composite Scaffold for Soft Tissue Engineering

A cytocompatible porous scaffold mimicking the properties of extracellular matrices (ECMs) has great potential in promoting cellular attachment and proliferation for tissue regeneration. A biomimetic scaffold was prepared using silk fibroin (SF)/sodium alginate (SA) in which regular and uniform pore morphology can be formed through a facile freeze-dried method. The scanning...

Hollow and hierarchical Na2Li2Ti6O14 microspheres with high electrochemical performance as anode material for lithium-ion battery

Relying on a solvent thermal method, spherical Na2Li2Ti6O14 was synthesized. All samples prepared by this method are hollow and hierarchical structures with the size of about 2–3 μm, which are assembled by many primary nanoparticles (~300 nm). Particle morphology analysis shows that with the increase of temperature, the porosity increases and the hollow structure becomes more...

Comparison of Serum MicroRNA21 and Tumor Markers in Diagnosis of Early Non-Small Cell Lung Cancer

Objective. To compare the clinical value of serum microRNA21 (miR21) and other tumor markers in early diagnosis of non-small cell lung cancer (NSCLC). Methods. Serums carcinoembryonic antigen (CEA), cytokeratin 19 fragment (CYFRA21-1), neuron-specific enolase (NSE), and miR21 were detected in 50 NSCLC cases and 60 healthy control individuals. Results. Average serums miR21, CEA...

Comparison of Serum MicroRNA21 and Tumor Markers in Diagnosis of Early Non-Small Cell Lung Cancer

Objective. To compare the clinical value of serum microRNA21 (miR21) and other tumor markers in early diagnosis of non-small cell lung cancer (NSCLC). Methods. Serums carcinoembryonic antigen (CEA), cytokeratin 19 fragment (CYFRA21-1), neuron-specific enolase (NSE), and miR21 were detected in 50 NSCLC cases and 60 healthy control individuals. Results. Average serums miR21, CEA...

Aripiprazole for the treatment of tic disorders in children: a systematic review and meta-analysis

Background Tic disorders (TDs) are common neuropsychiatric disorders in children. Typical antipsychotics, such as haloperidol and pimozide have been prescribed to control tic symptoms as first-line agents. However, adverse effects have led to the use of newer atypical antipsychotics. Aripiprazole is one of alternatives. The aim of this study was to evaluate the efficacy and...

Enhanced electrochemical performance of Li-rich low-Co Li1.2Mn0.56Ni0.16Co0.08−x Al x O2 (0≤x≤0.08) as cathode materials

Layered Li1.2Mn0.56Ni0.16Co0.08−x Al x O2 (0 ≤ x ≤ 0.08) cathode materials were successfully synthesized by a sol-gel method. X-ray diffraction and the refinement data indicate that all materials have typical α-NaFeO2 structure with R-3m space group, and the a-axis has almost no change, but there is a slight decrease in the c lattice parameter as well as the cell volume. Scanning...

High Prevalence of Diabetic Retinopathy in Diabetic Patients Concomitant with Metabolic Syndrome

Objective To evaluate the relationship between metabolic syndrome (MetS) and the prevalence of diabetic retinopathy (DR). Research Design and Methods We conducted a case-controlled study, with data obtained from 2,551 Chinese participants between 18–79 years of age (representing a population of 1,660,500 in a district of Beijing). 74 cases of DR were found following data...