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https://www.readbyqxmd.com/read/28088081/lead-pb-2-and-copper-cu-2-remediation-from-water-using-superparamagnetic-maghemite-%C3%AE-fe2o3-nanoparticles-synthesized-by-flame-spray-pyrolysis-fsp
#1
Shalini Rajput, Lok P Singh, Charles U Pittman, Dinesh Mohan
Superparamagnetic maghemite (γ-Fe2O3) nanoparticles of controllable morphology were successfully synthesized using a flame spray pyrolysis (FSP) technique. Their physico-chemical properties, size, morphology, and surface chemistries were determined using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), selected area electron diffraction patterns (SAED), SEM-EDX, scanning electron microscopy (SEM), and pHZPC(6.3). Elemental contents before and after adsorption were identified using energy dispersive X-ray fluorescence (ED-XRF), energy dispersive X-ray analysis (EDX) and elemental mapping...
November 27, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28088022/valorization-of-aluminum-scrap-via-an-acid-washing-treatment-for-reductive-removal-of-toxic-bromate-from-water
#2
Kun-Yi Andrew Lin, Jia-Yin Lin, Hsing-Lung Lien
Aluminum scrap (AS) is adopted for the first time as a readily available aluminum source to prepare zero-valent aluminum (ZVAl) for removing bromate from water via a reductive reaction. Since aluminum is easily oxidized to aluminum oxide (Al2O3) on exposure to air, an acid-washing pretreatment on AS is developed to remove the layer of Al2O3. HCl is found as the most effective acid to pretreat AS and the HCl-pretreated or acid-washed AS (AWAS) is able to remove bromate from water and convert it to bromide. Factors, such as temperature, pH, co-existing anions, and particle size, which influence the bromate removal using AWAS are also investigated...
January 6, 2017: Chemosphere
https://www.readbyqxmd.com/read/28087525/capturing-compositional-variation-in-denitrifying-communities-a-multiple-primer-approach-that-includes-autotrophic-denitrifying-epsilonproteobacteria
#3
Sheryl A Murdock, S Kim Juniper
: Denitrifying Epsilonproteobacteria may dominate nitrogen loss processes in marine habitats with intense redox gradients but assessment of their importance is limited by currently available primers for nitrite reductase genes. Nine new primers targeting the nirS gene of denitrifying Epsilonproteobacteria were designed and tested for use in sequencing and quantitative PCR on two microbial mat samples (Vent 2 and Vent 4) from the Calypso hydrothermal vent field, Bay of Plenty, New Zealand...
January 13, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28086940/ultrasound-guided-percutaneous-peripheral-nerve-stimulation-for-analgesia-following-total-knee-arthroplasty-a-prospective-feasibility-study
#4
Brian M Ilfeld, Christopher A Gilmore, Stuart A Grant, Michael P Bolognesi, Daniel J Del Gaizo, Amorn Wongsarnpigoon, Joseph W Boggs
BACKGROUND: Peripheral nerve stimulation has been used for decades to treat chronic pain but has not been used for postoperative analgesia due to multiple limitations, beginning with invasive electrode placement. With the development of small-diameter/gauge leads enabling percutaneous insertion, ultrasound guidance for accurate introduction, and stimulators small enough to be adhered to the skin, neurostimulation may now be provided in a similar manner to continuous peripheral nerve blocks...
January 13, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28081435/heavy-episodic-drinking-and-alcohol-related-injuries-an-open-cohort-study-among-college-students
#5
Francisco Caamaño-Isorna, Lucía Moure-Rodríguez, Sonia Doallo, Montserrat Corral, Socorro Rodriguez Holguín, Fernando Cadaveira
AIM: The objective of this study is to assess the effects of Heavy Episodic Drinking (HED) on the incidence of alcohol-related injuries among university students in Spain, taking sex into consideration. METHODS: We carried out an open cohort study among college students in Spain (992 women and 371 men). HED and alcohol-related injuries were measured by question 3rd and 9th of Alcohol Use Disorders Identification Test to every participant at the ages of 18, 20, 22, 24 and 27...
January 9, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28081056/guidance-for-assessment-of-poliovirus-vaccination-status-and-vaccination-of-children-who-have-received-poliovirus-vaccine-outside-the-united-states
#6
Mona Marin, Manisha Patel, Steve Oberste, Mark A Pallansch
In 1988, the World Health Assembly resolved to eradicate poliomyelitis (polio). Since then, wild poliovirus (WPV) cases have declined by >99.9%, from an estimated 350,000 cases of polio each year to 74 cases in two countries in 2015 (1). This decrease was achieved primarily through the use of trivalent oral poliovirus vaccine (tOPV), which contains types 1, 2, and 3 live, attenuated polioviruses. Since 2000, the United States has exclusively used inactivated polio vaccine (IPV), which contains all three poliovirus types (2,3)...
January 13, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28080043/plasma-based-water-treatment-efficient-transformation-of-perfluoroalkyl-substances-pfass-in-prepared-solutions-and-contaminated-groundwater
#7
Gunnar R Stratton, Fei Dai, Christopher L Bellona, Thomas M Holsen, Eric Reyvell Velazquez Dickenson, Selma Mededovic Thagard
A process based on electrical discharge plasma was tested for the transformation of perfluorooctanoic acid (PFOA). The plasma-based process was adapted for two cases, high removal rate and high removal efficiency. During a 30 minute treatment, the PFOA concentration in 1.4 L aqueous solutions was reduced by 90% with the high rate process (76.5 W input power) and 25% with the high efficiency process (4.1 W input power). Both achieved remarkably high PFOA removal and defluorination efficiencies compared to leading alternative technologies...
January 12, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28078508/prioritization-of-liver-mri-for-distinguishing-focal-lesions
#8
Qinghua Su, Shusheng Bi, Xuedong Yang
Liver cancer is one of the leading causes of cancer-related mortality worldwide. Magnetic resonance imaging (MRI) is a non-invasive imaging technique that is often used by radiologists for diagnosis and surgical planning. Analysis of a large amount of liver MRI data for each patient limits the radiologist's efficiency and may lead to misdiagnoses. The redundant MRI data, especially from dynamic contrast enhanced (DCE) sequences, is also a bottleneck in transmitting the images via the internet or PACS for remote consultancy in a reasonable amount of time...
January 4, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28078339/simultaneous-topographical-electrical-and-optical-microscopy-of-optoelectronic-devices-at-the-nanoscale
#9
Naresh Kumar, Alina Zoladek-Lemanczyk, Anne A Y Guilbert, Weitao Su, Sachetan M Tuladhar, Thomas Kirchartz, Bob C Schroeder, Iain McCulloch, Jenny Nelson, Debdulal Roy, Fernando A Castro
Novel optoelectronic devices rely on complex nanomaterial systems where the nanoscale morphology and local chemical composition are critical to performance. However, the lack of analytical techniques that can directly probe these structure-property relationships at the nanoscale presents a major obstacle to device development. In this work, we present a novel method for non-destructive, simultaneous mapping of the morphology, chemical composition and photoelectrical properties with <20 nm spatial resolution by combining plasmonic optical signal enhancement with electrical-mode scanning probe microscopy...
January 12, 2017: Nanoscale
https://www.readbyqxmd.com/read/28077621/functional-redundancy-and-non-redundancy-between-two-troponin-c-isoforms-in-drosophila-adult-muscles
#10
Maria B Chechenova, Sara Maes, Sandy T Oas, Cloyce Nelson, Kaveh G Kiani, Anton L Bryantsev, Richard M Cripps
We investigated the functional overlap of two muscle Troponin C (TpnC) genes that are expressed in the adult fruit fly, Drosophila melanogaster: TpnC4 is predominantly expressed in the indirect flight muscles (IFM), whereas TpnC41C is the main isoform in the tergal depressor of the trochanter muscle (TDT or jump muscle). Using CRISPR/Cas9, we created a transgenic line with a homozygous deletion of TpnC41C, and compared its phenotype to a line lacking functional TpnC4 We found that the removal of either of these genes leads to expression of the other isoform in both muscle types...
January 11, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28077318/alcohol-microbiome-life-style-influence-alcohol-and-non-alcoholic-organ-damage
#11
REVIEW
Manuela G Neuman, Samuel W French, Samir Zakhari, Stefen Malnick, Helmut K Seitz, Lawrence B Cohen, Mikko Salaspuro, Andreea Voinea Griffin, Andrei Barasch, Irina A Kirpich, Paul G Thomes, Laura W Schrum, Terrence M Donohue, Kusum Kharbanda, Marcus Cruz, Mihai Opris
This paper is based upon the "8th Charles Lieber's Satellite Symposium" organized by Manuela G. Neuman at the Research Society on Alcoholism Annual Meeting, onJune 25, 2016 at New Orleans, Louisiana, USA. The integrative symposium investigated different aspects of alcohol-induced liver disease (ALD) as well as non-alcohol-induced liver disease (NAFLD) and possible repair. We revealedthe basic aspects of alcohol metabolism that may be responsible for the development of liver diseaseas well as the factors that determine the amount, frequency and which type of alcohol misuse leads to liver and gastrointestinal diseases...
January 7, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28076749/epigenetic-changes-of-hepatic-glucocorticoid-receptor-in-sheep-male-offspring-undernourished-in-utero
#12
Stella Chadio, Basiliki Kotsampasi, Stylliani Taka, Emmanouil Liandris, Nikolaos Papadopoulos, Elias Plakokefalos
The aim of this study was to characterise the effects of maternal undernutrition during gestation on hepatic gluconeogenic enzyme gene expression and to determine whether such effects are mediated through epigenetic changes in the glucocorticoid receptor (GR). Pregnant ewes were fed a 50% nutrient-restricted diet from Day 0 to 30 (R1) or from Day 31 to 100 of gestation (R2) or a 100% diet throughout gestation (Control). After parturition lambs were fed to appetite. At 10 months of age offspring were euthanised and livers were removed...
January 12, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28076561/visual-outcomes-after-deep-anterior-lamellar-keratoplasty-using-donor-corneas-without-removal-of-descemet-membrane-and-endothelium
#13
Tatiana Moura Bastos Prazeres, Rodrigo Muller, Tatiana Rayes, Flavio Eduardo Hirai, Luciene Barbosa de Sousa
Purpose: The optical quality of the interface after deep anterior lamellar keratoplasty (DALK) using the big-bubble technique has been shown to be excellent, leading to results comparable to penetrating keratoplasty. However, there is little in the literature with respect to the controversy surrounding the preparation of the donor cornea. The purpose of this study was to evaluate visual acuity (VA) in patients with keratoconus who underwent DALK without removal of the donor graft endothelium...
November 2016: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28075624/use-of-preprocedural-mdct-for-cardiac-implantable-electric-device-lead-extraction-frequency-of-findings-that-change-management
#14
Wendy L Ehieli, Daniel T Boll, Daniele Marin, Robert Lewis, Jonathan P Piccini, Lynne M Hurwitz
OBJECTIVE: Five percent of cardiac implantable electric devices (CIEDs) are removed each year. Percutaneous extraction is preferred but can be complicated if the leads adhere to the vasculature or perforate. The goal of this study is to assess the frequency of findings on dedicated MDCT that alter preprocedural planning for percutaneous CIED extraction. MATERIALS AND METHODS: One hundred patients with CIEDs who underwent MDCT before percutaneous lead extraction were analyzed...
January 11, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28074964/how-the-alignment-of-adsorbed-ortho-h-pairs-determines-the-onset-of-selective-carbon-nanotube-etching
#15
U Khalilov, A Bogaerts, B Xu, T Kato, T Kaneko, E C Neyts
Unlocking the enormous technological potential of carbon nanotubes strongly depends on our ability to specifically produce metallic or semiconducting tubes. While selective etching of both has already been demonstrated, the underlying reasons, however, remain elusive as yet. We here present computational and experimental evidence on the operative mechanisms at the atomic scale. We demonstrate that during the adsorption of H atoms and their coalescence, the adsorbed ortho hydrogen pairs on single-walled carbon nanotubes induce higher shear stresses than axial stresses, leading to the elongation of HC-CH bonds as a function of their alignment with the tube chirality vector, which we denote as the γ-angle...
January 11, 2017: Nanoscale
https://www.readbyqxmd.com/read/28074959/partial-hydrogenation-induced-interaction-in-a-graphene-sio2-interface-irreversible-modulation-of-device-characteristics
#16
Takuya Iwasaki, Manoharan Muruganathan, Marek E Schmidt, Hiroshi Mizuta
The transformation of systematic vacuum and hydrogen annealing effects in graphene devices on the SiO2 surface is reported based on experimental and van der Waals interaction corrected density functional theory (DFT) simulation results. Vacuum annealing removes p-type dopants and reduces charged impurity scattering in graphene. Moreover, it induces n-type doping into graphene, leading to the improvement of the electron mobility and conductivity in the electron transport regime, which are reversed by exposing to atmospheric environment...
January 11, 2017: Nanoscale
https://www.readbyqxmd.com/read/28074773/low-dose-dialysis-combined-with-low-protein-intake-can-maintain-nitrogen-balance-in-peritoneal-dialysis-patients-in-poor-economies%C3%A2
#17
Chun-Yan Su, Tao Wang, Xin-Hong Lu, Sha Ma, Wen Tang, Pei-Yu Wang
OBJECTIVE: Due to limited economic conditions, we tried to provide "fitted" dialysis doses instead of the doses recommended by the international guidelines to the individual patients. In the present cross-sectional study, we studied the dialysis adequacy and nutritional status of 5 peritoneal dialysis patients who had a low dialysis dose (2 bags, 4,000 mL/day). METHODS: The 3-day dietary records were reviewed to calculate patients' energy, protein, and nitrogen intake (NI)...
January 11, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28074003/dna-polymerase-beta-germline-variant-confers-cellular-response-to-cisplatin-therapy
#18
Antonia A Nemec, Laura Abriola, Jane S Merkel, Elisa deStanchina, Michelle DeVeaux, Daniel Zelterman, Peter M Glazer, Joann B Sweasy
: Resistance to cancer chemotherapies leads to deadly consequences, yet current research focuses only on the roles of somatically acquired mutations in this resistance. The mutational status of the germline is also likely to play a role in the way cells respond to chemotherapy. The carrier status for the POLB rs3136797 germline mutation encoding P242R DNA polymerase beta (Pol β) is associated with poor prognosis for lung cancer, specifically in response to treatment with cisplatin. Here, it is revealed that the P242R mutation is sufficient to promote resistance to cisplatin in human cells and in mouse xenografts...
January 10, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28073267/folding-sheets-with-ion-beams
#19
Cheng-Lun Wu, Fang-Cheng Li, Chun-Wei Pao, David J Srolovitz
Focused ion beams (FIBs) are versatile tools with cross-disciplinary applications from the physical and life sciences to archeology. Nevertheless, the nanoscale patterning precision of FIBs is often accompanied by defect formation and sample deformation. In this study, the fundamental mechanisms governing the large-scale plastic deformation of nanostructures undergoing FIB processes are revealed by a series of molecular dynamic simulations. A surprisingly simple linear correlation between atomic volume removed from the film bulk and film deflection angle, regardless of incident ion energy and current, is revealed, demonstrating that the mass transport to the surface of material caused by energetic ion bombardment is the primary cause leading to nanostructure deformation...
January 11, 2017: Nano Letters
https://www.readbyqxmd.com/read/28073208/experience-of-percutaneous-access-under-ultrasound-guidance-in-renal-transplant-patients-with-allograft-lithiasis
#20
Silvano Palazzo, Ottavio Colamonico, Saverio Forte, Matteo Matera, Giuseppe Lucarelli, Pasquale Ditonno, Michele Battaglia, Pasquale Martino
OBJECTIVE: Urolithiasis of the transplanted kidney has an incidence of 0.2 to 1.7%, it increases the risk of infection in immunosuppressed patients and it can lead to ureteral obstruction that is often associated with deterioration of renal function. Urolithiasis of the transplanted kidney has different characteristics compared to the native kidney, due to the absence of innervation, which does not lead to colic pain. Percutaneous approach is an optimal choice in transplant patients. MATERIAL AND METHODS: Here we report our experience in two cadaveric transplant patients with urolithiasis...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
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