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https://www.readbyqxmd.com/read/28812874/three-dimensional-highly-stretchable-conductors-from-elastic-fiber-mat-with-conductive-polymer-coating
#1
Shasha Duan, Zhihui Wang, Ling Zhang, Jin Liu, Chunzhong Li
The manufacture of stretchable conductors with well-reserved electrical performance under large-degree deformations via scalable processes remains of great importance. In this work, a highly stretchable 3D conductive framework consisted of polyurethane fiber mat (PUF) and poly(3,4-ethylenedioxythiophene) (PEDOT) is reported through facile approaches, electrospinning and in situ interfacial polymerization, which was then backfilled with poly(dimethylsiloxane) to obtain 3D conductors. The excellent stretchability of the 3D conductive network imparted the as-prepared electrode superior mechanical durability...
August 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28808937/high-performance-biogas-upgrading-using-a-biotrickling-filter-and-hydrogenotrophic-methanogens
#2
Trisha L Dupnock, Marc A Deshusses
This research reports the development of a biotrickling filter (BTF) to upgrade biogas, which is achieved by adding H2 to reduce CO2. H2 and CO2 (80:20% vol.) were fed to a bench-scale BTF packed with polyurethane foam (PUF) and inoculated with hydrogenotrophic methanogens. Maximum CH4 production rates recorded were as high as 38 m(3)CH4 m(-3)reactor day(-1), which is 5-30 times faster than earlier reports with other kinds of bioreactors. The high rates were attributed to the efficient mass transfer and high density of methanogens in the BTF...
August 14, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28808309/defluoridation-technology-for-drinking-water-and-tea-by-green-synthesized-fe3o4-al2o3-nanoparticles-coated-polyurethane-foams-for-rural-communities
#3
Sonu Kumari, Suphiya Khan
Fluoride (F) contaminated ground water poses a serious public health concern to rural population with unaffordable purification technologies. Therefore, development of a cost-effective, portable, environment and user-friendly defluoridation technique is imperative. In the present study, we report on the development of a green and cost-effective method that utilizes Fe3O4 and Al2O3 nanoparticles (NPs) that were synthesized using jojoba defatted meal. These NPs were impregnated on to polyurethane foam (PUF) and made into tea infusion bags...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28805055/ph-induced-switchable-superwettability-of-efficient-antibacterial-fabrics-for-durable-selective-oil-water-separation
#4
Yuchen Fu, Biyu Jin, Qinghua Zhang, Xiaoli Zhan, Fengqiu Chen
The superhydrophobic antibacterial fabrics with intelligent switchable wettability were fabricated by the crosslink reaction among pH-responsive antibacterial copolymer tethered hydroxyl groups, methylol-contained poly(ureaformaldehyde) nanoparticles (PUF NPs) and hexamethylene diisocyanate. It was found that the surface concentration of N+ were heavily influenced by acid solutions, resulting in the rapid wettability conversion from superhydrophobicity/superoleophilicity to superhydrophilicity/underwater superoleophobicity in remarkably short time...
August 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28802260/the-essential-functions-of-krepb4-are-developmentally-distinct-and-required-for-endonuclease-association-with-editosomes
#5
Suzanne M McDermott, Kenneth Stuart
Uridine insertion and deletion RNA editing generates functional mitochondrial mRNAs in Trypanosoma brucei, and several transcripts are differentially edited in bloodstream (BF) and procyclic form (PF) cells correlating with changes in mitochondrial function. Editing is catalyzed by three ∼20S editosomes that have a common set of 12 proteins, but are typified by mutually exclusive RNase III KREN1, N2, and N3 endonucleases with distinct cleavage specificities. KREPB4 is a common editosome protein that has a degenerate RNase III domain lacking conserved catalytic residues, in addition to zinc-finger and Pumilio/fem-3 mRNA binding factor (PUF) motifs...
August 11, 2017: RNA
https://www.readbyqxmd.com/read/28802141/adsorption-of-the-herbicides-diquat-and-difenzoquat-on-polyurethane-foam-kinetic-equilibrium-and-computational-studies
#6
Jonas O Vinhal, Kassem K Nege, Mateus R Lage, José Walkimar de M Carneiro, Claudio F Lima, Ricardo J Cassella
This work reports a study about the adsorption of the herbicides diquat and difenzoquat from aqueous medium employing polyurethane foam (PUF) as the adsorbent and sodium dodecylsulfate (SDS) as the counter ion. The adsorption efficiency was shown to be dependent on the concentration of SDS in solution, since the formation of an ion-associate between cationic herbicides (diquat and difenzoquat) and anionic dodecylsulfate is a fundamental step of the process. A computational study was carried out to identify the possible structure of the ion-associates that are formed in solution...
August 9, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28798827/childhood-bladder-and-bowel-dysfunction-predicts-irritable-bowel-syndrome-phenotype-in-adult-interstitial-cystitis-bladder-pain-syndrome-patients
#7
R Christopher Doiron, Barry A Kogan, Victoria Tolls, Karen Irvine-Bird, J Curtis Nickel
INTRODUCTION: Many clinicians have suggested that a history of bladder and bowel dysfunction (BBD) in childhood predisposes to the development of interstitial cystitis/bladder pain syndrome (IC/BPS) or irritable bowel syndrome (IBS) in adulthood. We hypothesized that BBD symptoms in childhood would predict the IBS-associated phenotype in adult IC/BPS patients. METHODS: Consecutive female patients (n=190) with a diagnosis of IC/BPS were administered a modified form of a clinical BBD questionnaire (BBDQ) to capture childhood BBD-like symptoms, as well as Interstitial Cystitis Symptoms Index (ICSI), Interstitial Cystitis Problem Index (ICPI), Pelvic Pain and Urgency/Frequency (PUF) questionnaires and UPOINT categorization...
August 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28770505/periodic-characterization-of-alkyl-naphthalenes-in-stack-gas-and-ambient-air-around-a-medical-waste-incinerator
#8
Olusola Adedayo Adesina, Jacob Ademola Sonibare, Paul N Diagboya, Adesuji Adejuwon, Temitope Famubode, Josiah O Bello
Due to the subtle occurrence of environmental polycyclic aromatic hydrocarbon (PAHs) pollution from incinerators, it is seldom considered a significant source of PAH pollution. However, considering the recent build-up of toxics in urban air, this may be a serious concern around the incinerator vicinity due to the potential consequences of PAHs on human health. Hence, this study determined 11 alkyl-naphthalene contributions from a hospital waste incinerator (HWI_0) into ambient air receptor points (HWI_1 to HWI_5) for a 1-year period: June 2014-May 2015...
August 3, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28768715/architecture-and-dynamics-of-overlapped-rna-regulatory-networks
#9
Christopher P Lapointe, Melanie A Preston, Daniel Wilinski, Harriet A J Saunders, Zachary T Campbell, Marvin Wickens
A single protein can bind and regulate many mRNAs. Multiple proteins with similar specificities often bind and control overlapping sets of mRNAs. Yet, little is known about the architecture or dynamics of overlapped networks. We focused on three proteins with similar structures and related RNA-binding specificities ‒ Puf3p, Puf4p, and Puf5p of S. cerevisiae. Using RNA Tagging, we identified a "super-network" comprised of four sub-networks: Puf3p, Puf4p, and Puf5p sub-networks, and one controlled by both Puf4p and Puf5p...
August 2, 2017: RNA
https://www.readbyqxmd.com/read/28750223/associations-between-flame-retardant-applications-in-furniture-foam-house-dust-levels-and-residents-serum-levels
#10
Stephanie C Hammel, Kate Hoffman, Amelia M Lorenzo, Albert Chen, Allison L Phillips, Craig M Butt, Julie Ann Sosa, Thomas F Webster, Heather M Stapleton
Polyurethane foam (PUF) in upholstered furniture frequently is treated with flame retardant chemicals (FRs) to reduce its flammability and adhere to rigorous flammability standards. For decades, a commercial mixture of polybrominated diphenyl ethers (PBDEs) called PentaBDE was commonly applied to foam to fulfill these regulations; however, concerns over toxicity, bioaccumulation, and persistence led to a global phase-out in the mid-2000s. Although PentaBDE is still detected in older furniture, other FR compounds such as tris(1,3-dichloroisopropyl) phosphate (TDCIPP) and Firemaster® 550 (FM550) have been increasingly used as replacements...
July 24, 2017: Environment International
https://www.readbyqxmd.com/read/28717297/air-leak-into-the-soft-tissues-during-the-puffed-cheek-ct-evaluation-of-oral-cavity-diagnosis-and-implication-of-a-rare-phenomenon
#11
Venkatraman Bhat, Naveen Hadne, Richard Tobias
Leakage of small pockets of air in to soft tissues of cheek along vascular bundle is reported in a patient with ulcerated oral malignancy with history of recent biopsy. Leakage occurred during an attempt to puff the cheek during CT examination of oral cavity. Hereto undocumented phenomenon was self limiting and did not lead to clinical disability. Imaging appearance and likely mechanism of the complication are discussed.
September 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28682031/-the-peritoneal-ultrafiltration-in-patients-with-cardio-renal-disease
#12
Roberto Corciulo, Simone Corciulo
In Italy, the congestive heart failure is the leading cause of hospitalization and despite advances in therapy, the long-term prognosis is poor. Congestive heart failure is associated with advanced varying degrees of chronic renal disease that identify the cardio-renal syndrome type 2. High-dose diuretic therapy often fail to solve the water overload that is frequently the cause of death. The resistance to diuretics aggravates the state of the patient's edema and consequently morbidity and mortality. In the acute stage, the extracorporeal ultrafiltration unable to repair over hydration but needs frequent access weekly or midweek at the dialysis center...
March 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28681602/phenolics-from-whole-grain-oat-products-as-modifiers-of-starch-digestion-and-intestinal-glucose-transport
#13
Min Li, Katie Koecher, Laura Hansen, Mario G Ferruzzi
Four oat varieties and three product forms (porridge, cereal, and snack bar) were assessed to determine the impact of oat phenolics on starch digestibility and intestinal glucose transport. α-Amylase activity was enhanced by 20 GAE μM (gallic acid equivalent) of phenolics extracted from oat (96.7-118%, p < 0.05), while it was modestly inhibited at 500 GAE μM (83.0-95.4%). Maltose hydrolysis was reduced (49.6-82.4%, p < 0.05), albeit with high IC50 values (500-940 GAE μM). Free and bound oat phenolic extracts dose-dependently attenuated transport of d-glucose-1,2,3,4,5,6,6-d7 by Caco-2 monolayers over 60 min...
August 16, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28673061/the-risk-of-upper-urinary-tract-involvement-in-patients-with-ketamine-associated-uropathy
#14
Chi-Hang Yee, Jeremy Yuen-Chun Teoh, Pui-Tak Lai, Vivian Yee-Fong Leung, Winnie Chiu-Wing Chu, Wai-Man Lee, Yuk-Him Tam, Chi-Fai Ng
PURPOSE: The aims of this study were to investigate the prevalence of upper tract involvement in ketamine-associated uropathy, and to determine the predictors of hydronephrosis in patients with a history of ketamine abuse. METHODS: This was a cross-sectional study of a prospective cohort of patients with ketamine-associated uropathy. Data including demographics, pattern of ketamine abuse, pelvic pain and urgency or frequency (PUF) symptom score, uroflowmetry (UFM) parameters, serum renal function, and liver function tests were collected...
June 2017: International Neurourology Journal
https://www.readbyqxmd.com/read/28670606/variability-in-puff-topography-and-exhaled-co-in-waterpipe-tobacco-smoking
#15
Hyoshin Kim, Marielle C Brinkman, Eva Sharma, Sydney M Gordon, Pamela I Clark
OBJECTIVES: We examined intra-individual variability in puff topography and CO measures collected during laboratory waterpipe (WP) tobacco smoking using a research-grade waterpipe (RWP). METHODS: WP smoking topography and exhaled CO measures were obtained from 10 established WP smokers in a single-blind, crossover design. Using a previously validated RWP, each participant smoked "Two Apples" WP tobacco ad libitum with a single quick-light charcoal to satiation in 3 laboratory sessions spaced at least one week apart...
October 2016: Tobacco Regulatory Science
https://www.readbyqxmd.com/read/28664698/puffed-cereals-with-added-chamomile-quantitative-analysis-of-polyphenols-and-optimization-of-their-extraction-method
#16
Tomasz Blicharski, Anna Oniszczuk, Marta Olech, Tomasz Oniszczuk, Agnieszka Wójtowicz, Wojciech Krawczyk, Renata Nowak
[b]Abstract Introduction[/b]. Functional food plays an important role in the prevention, management and treatment of chronic diseases. One of the most interesting techniques of functional food production is extrusion-cooking. Functional foods may include such items as puffed cereals, breads and beverages that are fortified with vitamins, some nutraceuticals and herbs. Due to its pharmacological activity, chamomile flowers are the most popular components added to functional food. OBJECTIVE: Quantitative analysis of polyphenolic antioxidants, as well as comparison of various methods for the extraction of phenolic compounds from corn puffed cereals, puffed cereals with an addition of chamomile (3, 5, 10 and 20%) and from [i]Chamomillae anthodium...
May 11, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28657413/dynamic-measurement-of-newly-formed-carbonyl-compounds-in-vapors-from-electronic-cigarettes
#17
Cecilia Sala, Claudio Medana, Raffaele Pellegrino, Riccardo Aigotti, Federica Dal Bello, Giancarlo Bianchi, Enrico Davoli
Recently, the formation of carbonyl compound within e-cigarettes usage has been reported. The aim of this study was to develop a new analytical method for the direct analysis of carbonyl compounds in vaporized liquids. Two different types of e-cigarettes and different puff's duration have been evaluated, using a modified smoking machine for vapor generation. An isotopic dilution approach, based on deuterated internal standard addition to the e-liquid before filling the e-cigarette tank, has been developed. Carbonyl compounds have been sampled in vapors using a direct, simple, solid-phase microextraction technique with on-fiber derivatization...
April 2017: European Journal of Mass Spectrometry
https://www.readbyqxmd.com/read/28656752/airborne-pcbs-and-oh-pcbs-inside-and-outside-urban-and-rural-u-s-schools
#18
Rachel F Marek, Peter S Thorne, Nicholas J Herkert, Andrew M Awad, Keri C Hornbuckle
PCBs appear in school air because many school buildings were built when PCBs were still intentionally added to building materials and because PCBs are also present through inadvertent production in modern pigment. This is of concern because children are especially vulnerable to the toxic effects of PCBs. Here we report indoor and outdoor air concentrations of PCBs and OH-PCBs from two rural schools and four urban schools, the latter near a PCB-contaminated waterway of Lake Michigan in the United States. Samples (n = 108) were collected as in/out pairs using polyurethane foam passive air samplers (PUF-PAS) from January 2012 to November 2015...
June 28, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28641883/petroleum-oil-removal-by-immobilized-bacterial-cells-on-polyurethane-foam-under-different-temperature-conditions
#19
Mauricio J Alessandrello, María S Juárez Tomás, Enzo E Raimondo, Diana L Vullo, Marcela A Ferrero
In this work, a mixed biofilm composed by Pseudomonas monteilii P26 and Gordonia sp. H19 was formed using polyurethane foam (PUF) as immobilization support, for crude oil removal from artificial sea water. Fresh immobilized cells and immobilized cells that were stored at 4°C for two months before use were assessed. The oil removal assays were carried out at microcosm scale at 4, 15 and 30°C. A viability loss of P. monteilii P26 was observed after the storage. The highest removal value (75%) was obtained at 30°C after 7days using fresh immobilized cells on PUF...
June 19, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28637344/nicotine-delivery-to-the-aerosol-of-a-heat-not-burn-tobacco-product-comparison-with-a-tobacco-cigarette-and-e-cigarettes
#20
Konstantinos E Farsalinos, Nikoletta Yannovits, Theoni Sarri, Vassilis Voudris, Konstantinos Poulas
Introduction: The purpose was to measure nicotine levels to the tobacco and levels emitted to the aerosol of a heat-not-burn product (HnB, IQOS) compared to e-cigarettes (ECs) and a tobacco cigarette. Methods: The HnB device and regular and menthol sticks were purchased from Italy. Three types of ECs (ciga-like, eGo-style and variable wattage) and a commercially-available tobacco cigarette were also tested. A custom-made liquid containing 2% nicotine was used with ECs...
June 16, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
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