35,052 results match your criteria Vacuum Extraction


Hybrid colloidal suspensions tailored as gels to remove radioactive bitumen stains.

J Environ Manage 2018 Dec 3;232:660-665. Epub 2018 Dec 3.

CEA, DEN, Univ Montpellier, DE2D, SEAD, Laboratoire des Procédés Supercritiqueset de Décontamination, Marcoule, F-30207Bagnols-sur-Cèze, France. Electronic address:

Vacuumable gels have been developed in the nuclear industry to decontaminate solid surfaces with little or no mechanical operations and without producing any liquid effluents. These gels can be spread on the contaminated surface and rapidly trap the radio-contaminants by sorption after corroding the substrate down to several tens of microns if necessary. The gel then dries and eventually fractures into a non-powdery solid that is easily removable by brushing or vacuum cleaning. Read More

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December 2018

Microbubble aeration enhances performance of vacuum membrane distillation desalination by alleviating membrane scaling.

Water Res 2018 Nov 20;149:588-595. Epub 2018 Nov 20.

School of Environmental Science and Engineering, State Key Laboratory of Control and Resource Reuse, Tongji University, 1239, Siping Road, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China. Electronic address:

Membrane fouling, especially inorganic fouling due to salt crystal formation and deposition on the membrane surface, is still a major technical issue in membrane distillation (MD) applications. In this study, microbubble aeration (MBA) was included in a laboratory-scale vacuum membrane distillation (VMD) rig and its effect on a desalination process was examined. Without MBA, serious membrane scaling occurred during desalination of simulated high-salinity sea water (100 g. Read More

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November 2018
2 Reads

Human-powered pop-up resting shelter for sampling cavity-resting mosquitoes.

Acta Trop 2018 Dec 3. Epub 2018 Dec 3.

Entomology and Nematology Department, University of Florida, 1881 Natural Area Dr., Gainesville, FL, 32608, United States.

Methods for collecting mosquitoes without the use of electricity are advantageous in remote field locations where electricity is not present or is unreliable. Here we report on the development and evaluation of a human-powered system for sampling cavity-resting mosquitoes. The system is composed of a spring-steel framed resting shelter and pneumatic lid that "pumps" mosquitoes resting within the shelter into a capture chamber when the resting shelter is manually compressed. Read More

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December 2018
1 Read

New Educator Roles for Health Systems Science: Implications of New Physician Competencies for U.S. Medical School Faculty.

Acad Med 2018 Dec 4. Epub 2018 Dec 4.

J.D. Gonzalo is associate professor of medicine and public health sciences and associate dean for health systems education, Penn State College of Medicine, Hershey, Pennsylvania; ORCID: http://orcid.org/0000-0003-1253-2963. A. Chang is professor of medicine, Gold-Headed Cane Endowed Education Chair in Internal Medicine, University of California, San Francisco, School of Medicine, San Francisco, California. D. R. Wolpaw is professor of medicine and humanities, Penn State College of Medicine, Hershey, Pennsylvania; ORCID: http://orcid.org/0000-0002-7567-2034.

To address gaps in U.S. health care outcomes, medical education is evolving to incorporate new competencies, as well as to align with care delivery transformation and prepare systems-ready providers. Read More

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December 2018

Oxidation-Induced Changes in the ALD-Al2O3/InAs(100) Interface and Control of the Changes for Device Processing.

ACS Appl Mater Interfaces 2018 Dec 3. Epub 2018 Dec 3.

InAs crystals are emerging materials for various devices like radio-frequency transistors and infrared sensors. Control of oxidation-induced changes is essential for decreasing amounts of the harmful InAs surface (or interface) defects because it is hard to avoid the energetically favored oxidation of InAs surface parts in device processing. We have characterized atomic-layer-deposition (ALD) grown Al2O3/InAs interfaces, pre-oxidized differently, with synchrotron hard x-ray photoelectron spectroscopy (HAXPES), low-energy electron diffraction, scanning tunneling microscopy, and time-of-flight elastic recoil detection analysis. Read More

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December 2018

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes.

J Vis Exp 2018 Nov 16(141). Epub 2018 Nov 16.

Physics Department, Durham University; Faculty of Chemistry, Silesian University of Technology; Centre of Polymer and Carbon Materials, Polish Academy of Science;

A method for producing simple and efficient thermally-activated delayed fluorescence organic light-emitting diodes (OLEDs) based on guest-host or exciplex donor-acceptor emitters is presented. With a step-by-step procedure, readers will be able to repeat and produce OLED devices based on simple organic emitters. A patterning procedure allowing the creation of personalized indium tin oxide (ITO) shape is shown. Read More

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November 2018

A Flexible All-in-One Lithium-Sulfur Battery.

ACS Nano 2018 Dec 3. Epub 2018 Dec 3.

The recent boom in flexible and wearable electronic devices has increased the demand for flexible energy storage devices. Flexible lithium-sulfur (Li-S) battery is considered to be a promising candidate due to its high energy density and low cost. Herein, a flexible Li-S battery was fabricated based on a all-in-one integrated configuration, where multi-walled carbon nanotubes/sulfur (MWCNTs/S) cathode, MWCNTs/MnO2 interlayer, polypropylene (PP) separator and Li anode were integrated together by combining blade coating with vacuum evaporation methods. Read More

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December 2018

Second International Consensus Conference on lesions of uncertain malignant potential in the breast (B3 lesions).

Breast Cancer Res Treat 2018 Nov 30. Epub 2018 Nov 30.

Institute of Pathology and Molecular Pathology, University Hospital Zurich, Switzerland Schmelzbergstrasse 12., 8091, Zurich, Switzerland.

Purpose: The second International Consensus Conference on B3 lesions was held in Zurich, Switzerland, in March 2018, organized by the International Breast Ultrasound School to re-evaluate the consensus recommendations.

Methods: This study (1) evaluated how management recommendations of the first Zurich Consensus Conference of 2016 on B3 lesions had influenced daily practice and (2) reviewed current literature towards recommendations to biopsy.

Results: In 2018, the consensus recommendations for management of B3 lesions remained almost unchanged: For flat epithelial atypia (FEA), classical lobular neoplasia (LN), papillary lesions (PL) and radial scars (RS) diagnosed on core-needle biopsy (CNB) or vacuum-assisted biopsy (VAB), excision by VAB in preference to open surgery, and for atypical ductal hyperplasia (ADH) and phyllodes tumors (PT) diagnosed at VAB or CNB, first-line open surgical excision (OE) with follow-up surveillance imaging for 5 years. Read More

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November 2018
1 Read

Endoscopic management of perforations, leaks and fistulas.

Transl Gastroenterol Hepatol 2018 31;3:85. Epub 2018 Oct 31.

Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.

The endoscopic management armamentarium of gastrointestinal disruptions including perforations, leaks, and fistulas has slowly but steadily broadened in recent years. Previously limited to surgical or conservative medical management, innovations in advanced endoscopic techniques like natural orifice transluminal endoscopic surgery (NOTES) have paved the path towards development of endoscopic closure techniques. Early recognition of a gastrointestinal defect is the most important independent variable in determining successful endoscopic closure and patient outcome. Read More

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October 2018
1 Read

Prone percutaneous nephrolithotomy: its advantages and our technique for puncture.

Transl Androl Urol 2018 Dec;7(6):950-959

Department of Urology, La Paz University Hospital, Madrid, Spain.

Percutaneous nephrolithotomy (PCNL) is considered the treatment of choice for large urinary calculi and staghorn lithiasis. The approach for this surgery may be either supine or prone, and different access techniques are described in the literature with the use of ultrasound, fluoroscopy, or both combined. We believe that prone PCNL offers to the urologist key advantages, such as the possibility of puncturing anatomically abnormal urinary tracts, to perform multiple percutaneous tracts in the same kidney, experiencing the vacuum cleaner effect, ease of exploring the upper calyx through the inferior calyx, possibility to perform endoscopic combined intrarenal surgery (ECIRS) and bilateral simultaneous surgery, and to performed over local anesthesia. Read More

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December 2018
1 Read

Physiological outcomes of calming behaviors support the resilience hypothesis in horses.

Sci Rep 2018 Nov 30;8(1):17501. Epub 2018 Nov 30.

Department of Veterinary Sciences, University of Pisa, Pisa, Italy.

To manage a stressful stimulus animals react both behaviorally and physiologically to restore the homeostasis. In stable horses, a stressful stimulus can be represented by social separation, riding discomfort or the presence of novel objects in their environment. Although Heart Rate Variability is a common indicator of stress levels in horses, the behavioral mechanisms concurrently occurring under stressful conditions are still unknown. Read More

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November 2018

Sequencing of therapies in relapsed follicular lymphoma.

Hematology Am Soc Hematol Educ Program 2018 Nov;2018(1):189-193

Division of Hematology and Medical Oncology, Meyer Cancer Center, Weill Cornell Medicine and NewYork-Presbyterian Hospital, New York, NY.

Follicular lymphoma (FL) is an incurable but treatable disease with vast treatment options. Despite the abundance of efficacious treatment modalities, there is no universally agreed upon standard approach to treatment, particularly in the relapsed/refractory setting. There is an increasing need for more robust and clinically available tools to risk-stratify patients and identify those likely to experience early relapse, which is currently recognized as the unmet need in FL. Read More

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November 2018
1 Read

Mathematical Modelling of Lamellar Aggregation of Dispersed Globular Nanoparticles nC on the Interface Upon Sublimation of Water Molecules from Rapid Frozen Dispersion.

J Nanosci Nanotechnol 2019 May;19(5):2671-2677

Department of Chemistry, VŠB-Technical University of Ostrava, 17. listopadu 15, 708 33 Ostrava - Poruba, Czech Republic.

The publication is focused on the problem of nanoparticle aggregation on the sublimation interface between vacuum and rapid frozen liquid dispersion. The main aims are simulation experiments of mathematical modelling of these processes. During lyophilization of rapid frozen liquid dispersion of nanoparticles, a self-organization of nanoparticles occurs. Read More

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Note: Rotor design optimization for vacuum chamber-free ultracentrifuge.

Rev Sci Instrum 2018 Nov;89(11):116107

Department of Mechanical Engineering, KAIST, Daejeon 305-701, Korea.

This paper proposes a fixed-angle rotor design for a vacuum chamber-free ultracentrifuge using a rigid shaft and magnetic bearings. The rotor is designed for a stable operation in the ultracentrifugation region with air friction. And the optimal design parameters and optimized connection method of the rotor and rigid shaft are proposed. Read More

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November 2018

Enabling liquid vapor analysis using synchrotron VUV single photon ionization mass spectrometry with a microfluidic interface.

Rev Sci Instrum 2018 Nov;89(11):115105

Atmospheric Sciences and Global Change Division, PNNL, Richland, Washington 99354, USA.

Vacuum ultraviolet (VUV) single photon ionization mass spectrometry (SPI-MS) is a vacuum-based technique typically used for the analysis of gas phase and solid samples, but not for liquids due to the challenge in introducing volatile liquids in a vacuum. Here we present the first demonstration of liquid analysis by integrating the System for Analysis at the Liquid Vacuum Interface (SALVI) microfluidic reactor into VUV SPI-MS. Four representative volatile organic compound (VOC) solutions were used to illustrate the feasibility of liquid analysis. Read More

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November 2018

Note: Plasma optical emission spectroscopy for water vapor quantification and detection during vacuum drying process.

Rev Sci Instrum 2018 Nov;89(11):116108

Department of Mechanical Engineering, University of South Carolina, Columbia, South Carolina 29208-4104, USA.

A methodology involving plasma optical emission spectroscopy driven by a direct current (dc) plasma source is developed to quantify water vapor concentration in a gaseous stream. The experimental setup consists of a dc driven low-pressure plasma cell in which the emission from the plasma discharge is measured by using an optical emission spectrometer. The emission from H at 656. Read More

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November 2018

Determination of 2D poloidal maps of the intrinsic W density for transport studies in JET-ILW.

Rev Sci Instrum 2018 Nov;89(11):113501

Max-Planck-Institut für Plasmaphysik, Boltzmannstrasse 2, D-85748 Garching, GermanyCCFE, Culham Science Centre, Abingdon, Oxon OX14 3DB, United KingdomInstituto de Plasmas e Fuso Nuclear, Instituto Superior Tcnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, PortugalOak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA.

The experimental method developed at ASDEX Upgrade for the determination of the intrinsic tungsten (W) density profile coupling data from the soft X-ray (SXR) diagnostic and vacuum-ultra-violet (VUV) spectroscopy has been upgraded for application to JET plasmas. The strong poloidal asymmetries in the SXR emission are modeled assuming a distribution, where is the flux coordinate, is the major radius, and is the fit parameter. The W density is calculated from the resulting 2D SXR emissivity maps accounting for contributions from a low-Z impurity (typically beryllium) and main ion with the assumption that their contributions are poloidally symmetric. Read More

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November 2018

A compact ultrahigh vacuum scanning tunneling microscope with dilution refrigeration.

Rev Sci Instrum 2018 Nov;89(11):113707

Physikalisches Institut, Karlsruhe Institute of Technology, Wolfgang-Gaede-Strasse 1, 76131 Karlsruhe, Germany.

We have designed and built a scanning tunneling microscope (STM) setup for operation at millikelvin temperatures in an ultrahigh vacuum. A compact cryostat with an integrated dilution refrigerator has been built that allows measurements at a base temperature of 25 mK in the magnetic field up to 7.5 T with low mechanical and electronic noise. Read More

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November 2018

Electrochemistry in ultra-high vacuum: The fully transferrable ultra-high vacuum compatible electrochemical cell.

Rev Sci Instrum 2018 Nov;89(11):113102

Max-Planck-Institut für Eisenforschung, Düsseldorf, Germany.

A new experimental setup for / investigations of redox reactions is introduced. This setup, in combination with ultra-high vacuum (UHV) methods from the field of surface science, provides completely new possibilities to investigate electrochemical redox reactions. Two types of cells are distinguished conceptionally: in the permeation configuration, the working electrode is electrochemically polarised on one side of a membrane (entry side), leading to atomic hydrogen uptake, and allowing proton and electron exchange between the entry and the other side (exit side) of the membrane. Read More

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November 2018

A low-temperature scanning probe microscopy system with molecular beam epitaxy and optical access.

Rev Sci Instrum 2018 Nov;89(11):113705

Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.

A low-temperature ultra-high vacuum scanning probe microscopy (SPM) system with molecular beam epitaxy (MBE) capability and optical access was conceived, built, and tested in our lab. The design of the whole system is discussed here, with special emphasis on some critical parts. The SPM scanner head takes a modified Pan-type design with improved rigidity and compatible configuration to optical access and can accommodate both scanning tunneling microscope (STM) tips and tuning-fork based qPlus sensors. Read More

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November 2018
1.614 Impact Factor

A soft x-ray-ultraviolet (SUV) beamline and diffractometer for resonant elastic scattering and ultraviolet-vacuum ultraviolet reflectance at the Singapore synchrotron light source.

Rev Sci Instrum 2018 Nov;89(11):113113

Singapore Synchrotron Light Source, National University of Singapore, 5 Research Link, Singapore 117603, Singapore.

A new beamline and a six-circle UHV diffractometer have been constructed at the Singapore Synchrotron Light Source with a broad energy coverage from 3.5 to 1500 eV. The beamline is optimized for ultraviolet-vacuum-ultraviolet optical reflectivity and resonant soft X-ray scattering with medium energy resolution over a broad energy range, achieved by using a self-focusing monochromator consisting of a plane mirror and three variable line spacing gratings. Read More

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November 2018

Singly charged ion source designed using three-dimensional particle-in-cell method.

Rev Sci Instrum 2018 Nov;89(11):113302

National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan.

A singly charged ion source (SCIS) has been designed using a newly developed three-dimensional particle-in-cell (PIC) code. The SCIS is to be used in an isotope separation on-line (ISOL) system that provides C ions for heavy-ion cancer therapy with simultaneous verification of the dose distribution using positron emission tomography. The SCIS uses low-energy electron beams to produce singly charged carbon ions efficiently and maintain a high vacuum in the ISOL system. Read More

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November 2018

A nozzle for high-density supersonic gas jets at elevated temperatures.

Rev Sci Instrum 2018 Nov;89(11):113114

JILA, NIST and the University of Colorado, 440 UCB, Boulder, Colorado 80309-0440, USA.

We present the development of a gas nozzle providing high-density gas at elevated temperatures inside a vacuum environment. Fused silica is used as the nozzle material to allow the placement of the nozzle tip in close proximity to an intense, high-power laser beam, while minimizing the risk of sputtering nozzle tip material into the vacuum chamber. Elevating the gas temperature increases the gas-jet forward velocity, allowing us to replenish the gas volume in the laser-gas interaction region between consecutive laser shots. Read More

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November 2018
1 Read

Preparation of complex model electrocatalysts in ultra-high vacuum and transfer into the electrolyte for electrochemical IR spectroscopy and other techniques.

Rev Sci Instrum 2018 Nov;89(11):114101

Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, D-91058 Erlangen, Germany.

Model studies at complex, yet well-defined electrodes can provide a better understanding of electrocatalytic reactions. New experimental devices are required to prepare such model electrocatalysts with atomic-level control. In this work, we discuss the design of a new setup, which enables the preparation of well-defined electrocatalysts in ultra-high vacuum (UHV) using the full portfolio of surface science techniques. Read More

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November 2018

Experimental and Theoretical Investigation on the Pyrolysis of Furfural.

J Phys Chem A 2018 Dec 3. Epub 2018 Dec 3.

The thermal decomposition of furfural is investigated in a flow tube reactor at 30 Torr by synchrotron vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS) at temperatures from 1023 to 1273 K. Over 20 kinds of pyrolysis products, including short-lived radicals, stable oxygen-containing compounds, and hydrocarbons are identified from the scanning photoionization efficiency (PIE) spectra. Vinylketene (CH2=CH-CH=C=O), which has been shown to be an important primary product, is also directly observed. Read More

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December 2018

Osteogenesis of Multipotent Progenitor Cells using the Epigallocatechin Gallate-Modified Gelatin Sponge Scaffold in the Rat Congenital Cleft-Jaw Model.

Int J Mol Sci 2018 Nov 29;19(12). Epub 2018 Nov 29.

Department of Oral Implantology, Osaka Dental University, 8-1, Kuzuhahanazonocho, Hirakata, Osaka 573-1121, Japan.

Cost-effective and functionalized scaffolds are in high demand for stem-cell-based regenerative medicine to treat refractory bone defects in craniofacial abnormalities and injuries. One potential strategy is to utilize pharmacological and cost-effective plant polyphenols and biocompatible proteins, such as gelatin. Nevertheless, the use of chemically modified proteins with plant polyphenols in this strategy has not been standardized. Read More

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November 2018
1 Read

Green Procedure to Manufacture Nanoparticle-Decorated Paper Substrates.

Materials (Basel) 2018 Nov 29;11(12). Epub 2018 Nov 29.

Institute of Physics, Bijenička 46, 10000 Zagreb, Croatia.

For this study, a paper impregnated with silver nanoparticles (AgNPs) was prepared. To prepare the substrates, aqueous suspensions of pulp fines, a side product from the paper production, were mixed with AgNP suspensions. The nanoparticle (NP) synthesis was then carried out via laser ablation of pure Ag in water. Read More

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November 2018

Low-Energy Photoelectron Spectrum and Dissociative Photoionization of the Smallest Amides: Formamide and Acetamide.

J Phys Chem A 2018 Dec 5. Epub 2018 Dec 5.

The threshold photoelectron spectrum and low-energy dissociative photoionization processes of formamide and acetamide were studied using photoelectron photoion coincidence spectroscopy and vacuum ultraviolet synchrotron radiation. Ab initio calculations and Franck-Condon simulations helped us assign the main vibrational progressions in the spectra and enabled the first conclusive assignment of the first electronically excited states. The adiabatic ionization energies to the X and A states of formamide (10. Read More

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December 2018

Paper-based Versatile SERS Chip with Smartphone-based Raman Analyzer for Point of Care Application.

Anal Chem 2018 Dec 5. Epub 2018 Dec 5.

With the advanced development of the miniaturized Raman spectroscopy, surface enhanced Raman spectroscopy (SERS) has extended its applications into the field of Point of Care Testing (POCT) and demonstrated its great significance in virtue non-invasive property and capability of fingerprint identification. In the SERS-based analysis and/or sensing system, the preparation of low cost, high-performance SERS substrate is critically important. In this manuscript, vacuum filtration is utilized to fabricate the silver nanoparticles (AgNPs) embedded nylon filter membrane (ANFM) as flexible paper-based SERS chips. Read More

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December 2018

Ultrathin Biomimetic Polymeric Ti3C2Tx MXene Composite Films for Electromagnetic Interference Shielding.

ACS Appl Mater Interfaces 2018 Dec 5. Epub 2018 Dec 5.

Lightweight, ultrathin and flexible electromagnetic interference (EMI) shielding materials with high electromagnetic shielding effectiveness and excellent mechanical robustness are greatly desired for miniaturized and highly integrated electronics. Herein, for the first time, a freestanding, ultrathin and flexible Ti3C2Tx/PEDOT:PSS composite film with "brick-and-mortar" structure is biomimetically designed and fabricated via a vacuum-assisted filtration process. The ultrathin polymeric composite film with a weight ratio of Ti3C2Tx to PEDOT: PSS for 7:1 is only 11. Read More

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December 2018

Treatment with vacuum-assisted closure system: A case of anastomotic leak after upper gastrointestinal surgery.

Ulus Travma Acil Cerrahi Derg 2018 Nov;24(6):601-603

Department of General Surgery, University of Health Sciences, Okmeydanı Training and Research Hospital, İstanbul-Turkey.

Presently described is a case treated via stent and vacuum-assisted closure (VAC). The patient developed an oesophagojejunostomy leak (OL) on the ninth postoperative day after a radical total gastrectomy. The patient was a 55-year-old male patient with adenocarcinoma localized to the small curvature on the corpus of the stomach. Read More

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November 2018
2 Reads

Effect of ultrasonic on deterioration of oil in microwave vacuum frying and prediction of frying oil quality based on low field nuclear magnetic resonance (LF-NMR).

Ultrason Sonochem 2019 Mar 12;51:77-89. Epub 2018 Oct 12.

State Key Laboratory of Food Science and Technology, Jiangnan University, 214122 Wuxi, Jiangsu, China; Jiangsu Province Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, China.

The ultrasound assisted microwave vacuum frying system was investigated to achieve higher physicochemical and quality attributes of frying oil. In this study, the effect of ultrasonic on peroxide value, acid value, carbonyl value, polar component, fatty acid, color, viscosity, dielectric properties and low field nuclear magnetic resonance (LF-NMR) relaxation characteristics of frying oil under microwave vacuum frying were analyzed; the principal component regression (PCR) analysis was used to establish a correlation model for predicting physicochemical properties through LF-NMR relaxation characteristics. The results indicated that the acid value, carbonyl value, polar component, color, viscosity, dielectric constant and saturated fatty acids of the oil samples increased with the prolongation of frying time, and the peroxide value increased first and then decreased with the extension of frying time. Read More

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Recovery response of vertical gas wells in non-homogeneous landfills.

Waste Manag 2019 Jan 5;83:33-45. Epub 2018 Nov 5.

Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China. Electronic address:

A two-dimensional axisymmetric and normalized analytical model for landfill gas (LFG) migration around a vertical well is developed. The vertical gas permeability and LFG generation rate of waste are assumed to be subject to exponential decreases with depth. Using a general analytical solution, over 500,000 scenarios involving a combination of typical control variables (viz: cover properties, waste properties, vacuum pressure, well radius and spacing) are modelled. Read More

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January 2019
1 Read

Un homme sur cinq en souffre.

Authors:
Éric Huyghe

Rev Prat 2017 Jun;67(6):616-622

Département d'urologie, CHU de Toulouse, Toulouse, France.

News in erectile dysfunction. Erectile dysfunction (ED) is the most commonly treated sexual disorder affecting up to 20% of all men. As ED adversely affects the lives of millions of men, the public health implications of this condition are significant and represent a challenge for our healthcare system. Read More

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Solution-Deposited Solid-State Electrochromic Windows.

iScience 2018 Nov 10;10:80-86. Epub 2018 Nov 10.

Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada; Department of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada; Stewart Blusson Quantum Matter Institute, The University of British Columbia, 2355 East Mall, Vancouver, BC V6T 1Z4, Canada. Electronic address:

Commercially available electrochromic (EC) windows are based on solid-state devices in which WO and NiO films commonly serve as the EC and counter electrode layers, respectively. These metal oxide layers are typically physically deposited under vacuum, a time- and capital-intensive process when using rigid substrates. Herein we report a facile solution deposition method for producing amorphous WO and NiO layers that prove to be effective materials for a solid-state EC device. Read More

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November 2018

Experimental studies addressing the longevity of Bacillus subtilis spores - The first data from a 500-year experiment.

PLoS One 2018 4;13(12):e0208425. Epub 2018 Dec 4.

Space Microbiology Research Group, Radiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR e.V.), Cologne (Koeln), Germany.

The ability to form endospores allows certain Gram-positive bacteria (e.g. Bacillus subtilis) to challenge the limits of microbial resistance and survival. Read More

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December 2018
1 Read

Anthracene as a Launchpad for a Phosphinidene Sulfide and for Generation of a Phosphorus-Sulfur Material having the Composition PS, a Vulcanized Red Phosphorus that is Yellow.

J Am Chem Soc 2018 Dec 4. Epub 2018 Dec 4.

Thermolysis of a pair of dibenzo-7-phosphanorbornadiene compounds is shown to lead to differing behaviors: phosphinidene sulfide release and formation of amorphous PS. These compounds, BuP(S)A (1, A = CH or anthracene; 59% isol. yield) and HP(S)A (2; 63%), are available through thionation of BuPA and the new secondary phosphine HPA (5), which is prepared from Me2NPA in 50% yield by reaction with DIBAL-H. Read More

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December 2018
1 Read

In-Vitro Evaluation of Capiox FX05 and RX05 Oxygenators in Neonatal Cardiopulmonary Bypass Circuits with Varying Venous Reservoir and VAVD Levels.

Artif Organs 2018 Dec 4. Epub 2018 Dec 4.

Penn State Health Pediatric Cardiovascular Research Center, Department of Pediatrics, Penn State Health Children's Hospital, Hershey, PA, USA.

The purpose of this study was to evaluate the hemodynamic properties and microemboli capture associated with different VAVD vacuum levels and venous reservoir levels in a neonatal CPB circuit. Trials were conducted in 2 parallel circuits to compare the performance of Capiox Baby RX05 oxygenator with separate AF02 arterial filter to Capiox FX05 oxygenator with integrated arterial filter. Arterial cannula flow rate to the patient was held at 500mL/min and temperature maintained at 32°C while VAVD vacuum levels (0mmHg, -15mmHg, -30mmHg, -45mmHg, -60mmHg) and venous reservoir levels (50mL, 200mL) were evaluated in both oxygenators. Read More

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December 2018

Comparison of Upright Digital Breast Tomosynthesis-guided versus Prone Stereotactic Vacuum-assisted Breast Biopsy.

Radiology 2018 Dec 4:181788. Epub 2018 Dec 4.

From the Department of Radiology, Massachusetts General Hospital, 55 Fruit St, WAC 240, Boston, MA 02114.

Purpose To compare the performance of upright digital breast tomosynthesis (DBT)-guided vacuum-assisted breast biopsy (VABB) with that of prone stereotactic (PS) VABB. Materials and Methods This retrospective review involved consecutive patients who underwent PS VABB from August 2014 to December 2015 and upright DBT-guided VABB from February 2016 to June 2017. Tissue sampling methods were the same for PS and DBT-guided biopsies. Read More

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December 2018

DMSO-triggered complete oxygen transfer leading to accelerated aqueous hydrolysis of organohalides under mild conditions.

ChemSusChem 2018 Dec 3. Epub 2018 Dec 3.

Yangzhou University, School of Chemistry and Chemical Engineering, Siwangting Road 180#, 225002, Yangzhou, CHINA.

Addition of DMSO is capable of accelerating the aqueous hydrolysis of organohalides to alcohols greatly, providing a neutral, more efficient, milder and more economic new process. Mechanistic studies using 18O-DMSO and 18O-H2O showed that, contrary to the opinion that DMSO works as a dipolar solvent to enhance water's nucleophilicity, DMSO's accelerating effect comes from a complete oxygen transfer from DMSO to organohalides through generation of ROS+Me2·X- salts via C-O bonding, followed by O-S bond disassociated hydrolysis of ROS+Me2·X- with water. This method is applicable to a wide range of organohalides and thus may be of potential practical industrial applications due to easy recovery of DMSO from H2O/DMSO mixture by usual vacuum rectification. Read More

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December 2018
2 Reads

Effect of atorvastatin on cardiomyocyte hypertrophy through suppressing MURC induced by volume overload and cyclic stretch.

J Cell Mol Med 2018 Dec 3. Epub 2018 Dec 3.

Division of Cardiology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan.

MURC (muscle-restricted coiled-coil protein) is a hypertrophy-related gene. Hypertrophy can be induced by mechanical stress. The purpose of this research was to investigate the hypothesis that MURC mediates hypertrophy in cardiomyocytes under mechanical stress. Read More

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December 2018
2 Reads

Design of vertical landfill gas collection wells considering non-homogeneity with depth.

Waste Manag 2018 Dec 16;82:26-36. Epub 2018 Oct 16.

Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China. Electronic address:

Considering variable gas permeability and gas generation of waste with depth, different combinations of cover properties, vacuum pressure, and horizontal spacing of vertical wells giving rise to a 90% gas recovery rate are identified for typical waste properties. The effects of passive and active gas collection on horizontal well spacing are quantified. The normalized well spacing for 90% recovery is examined as a function of the cover resistance and the vacuum pump capacity. Read More

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December 2018

Outcomes of selective nonoperative management of civilian abdominal gunshot wounds: a systematic review and meta-analysis.

World J Emerg Surg 2018 27;13:55. Epub 2018 Nov 27.

Division of Vascular and Endovascular Surgery, Department of Surgery, University of Ottawa, The Ottawa Hospital, Civic Campus, Room A280, 1053 Carling Avenue, Ottawa, Ontario K1Y 4E9 Canada.

Background: Although mandatory laparotomy has been standard of care for patients with abdominal gunshot wounds (GSWs) for decades, this approach is associated with non-therapeutic operations, morbidity, and long hospital stays. This systematic review and meta-analysis sought to summarize outcomes of selective nonoperative management (SNOM) of civilian abdominal GSWs.

Methods: We searched electronic databases (March 1966-April 1, 2017) and reference lists of articles included in the systematic review for studies reporting outcomes of SNOM of civilian abdominal GSWs. Read More

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November 2018

Understanding beef flavour and overall liking traits using two different methods for determination of thiobarbituric acid reactive substance (TBARS).

Meat Sci 2018 Nov 23;149:114-119. Epub 2018 Nov 23.

Lab of Beef Processing and Quality Control, College of Food Science and Engineering, Shandong Agricultural University, Taian, Shandong 271018, PR China; Centre for Red Meat and Sheep Development, NSW Department of Primary Industries, Cowra, NSW 2794, Australia; Graham Centre for Agricultural Innovation, NSW Department of Primary Industries, Charles Sturt University, Wagga Wagga, NSW 2650, Australia.

Two extraction methods were applied to measure the thiobarbituric acid reactive substances (TBARS) values of vacuum packaged grass-fed beef steaks that were aged under four temperatures and five different time interval combinations to capture a range in lipid oxidation. The relationships between TBARS values and consumer assessment of flavour liking, flavour intensity and overall liking, were examined. M1 values had a normal distribution (0. Read More

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November 2018
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Clinical, imaging, and intervention factors associated with the upgrade of isolated flat epithelial atypia.

Clin Imaging 2018 Nov 20;54:21-24. Epub 2018 Nov 20.

Mather Pavilion B402, 11100 Euclid Avenue, Cleveland, OH, 44106, United States of America. Electronic address:

Purpose: This study aims to determine clinical, imaging, and intervention factors associated with the upgrade of flat epithelial atypia (FEA) diagnosed on vacuum-assisted biopsy (VAB) in order to formulate criteria for excision and better assist in management.

Methods: Between 2012 and 2015, 254 patients had a form of atypia diagnosed on ultrasound, MRI or stereotactic VAB and met eligibility for this study. Demographic, imaging, biopsy and pathology characteristics were analyzed for association with upgrade. Read More

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November 2018
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Novel |V_{us}| Determination Using Inclusive Strange τ Decay and Lattice Hadronic Vacuum Polarization Functions.

Phys Rev Lett 2018 Nov;121(20):202003

School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom.

We propose and apply a new approach to determining |V_{us}| using dispersion relations with weight functions having poles at Euclidean (spacelike) momentum which relate strange hadronic τ decay distributions to hadronic vacuum polarization (HVP) functions obtained from lattice quantum chromodynamics. We show examples where spectral integral contributions from the region where experimental data have large errors or do not exist are strongly suppressed but accurate determinations of the relevant lattice HVP combinations remain possible. The resulting |V_{us}| agrees well with determinations from K physics and three-family Cabibbo-Kobayashi-Maskawa unitarity. Read More

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November 2018

Collective strong light-matter coupling in hierarchical microcavity-plasmon-exciton systems.

Nano Lett 2018 Nov 30. Epub 2018 Nov 30.

Polaritons are compositional light-matter quasiparticles that arise as a result of strong coupling between a vacuum field of a resonant optical cavity and electronic excitations in quantum emitters. Reaching such a regime is often hard, as it requires materials possessing high oscillator strengths to interact with the relevant optical mode. Two-dimensional transition metal dichalcogenides (TMDs) have recently emerged as promising candidates for realization of strong coupling regime at room temperature. Read More

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November 2018
13.590 Impact Factor

Integrated Cooling-Vacuum-Assisted Non-Fractional 1540-nm Erbium:Glass Laser: A New Modality for the Simultaneous Effective Treatment of Acne Lesions and Scars

J Drugs Dermatol 2018 11;17(11):1173 - 1176

Introduction: Acne vulgaris is a common skin disorder with a significant impact on patients' quality of life. There is currently no treatment designated to treat acne lesions and scars concurrently. However, mid-infrared lasers may promote neocollagenesis within atrophic scars, while exerting a beneficial effect on acne lesions. Read More

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November 2018
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Universal quantum gate with hybrid qubits in circuit quantum electrodynamics.

Opt Lett 2018 Dec;43(23):5765-5768

Hybrid qubits have recently drawn intense attention in quantum computing. We here propose a method to implement a universal controlled-phase gate of two hybrid qubits via two three-dimensional (3D) microwave cavities coupled to a superconducting flux qutrit. For the gate considered here, the control qubit is a microwave photonic qubit (particle-like qubit), whose two logic states are encoded by the vacuum state and the single-photon state of a cavity, while the target qubit is a cat-state qubit (wave-like qubit), whose two logic states are encoded by the two orthogonal cat states of the other cavity. Read More

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December 2018
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