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https://www.readbyqxmd.com/read/28540491/a-temperature-dependent-physiologically-based-model-for-the-invasive-apple-snail-pomacea-canaliculata
#1
Gianni Gilioli, Sara Pasquali, Pablo R Martín, Nils Carlsson, Luigi Mariani
In order to set priorities in management of costly and ecosystem-damaging species, policymakers and managers need accurate predictions not only about where a specific invader may establish but also about its potential abundance at different geographical scales. This is because density or biomass per unit area of an invasive species is a key predictor of the magnitude of environmental and economic impact in the invaded habitat. Here, we present a physiologically based demographic model describing and explaining the population dynamics of a widespread freshwater invader, the golden apple snail Pomacea canaliculata, which is causing severe environmental and economic impacts in invaded wetlands and rice fields in Southeastern Asia and has also been introduced to North America and Europe...
May 24, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28540104/pseudohyperglycemia-effects-of-unwashed-hand-after-fruit-peeling-or-handling-on-fingertips-blood-glucose-monitoring-results
#2
M A Olamoyegun, T Oloyede, O G Adewoye, S O Abdulkarim, A A Adeleke
BACKGROUND: Self-monitoring of blood glucose (SMBG) is an important component of management for diabetes mellitus (DM), especially in T1DM and T2DM patients who are on insulin therapy. Adequate blood glucose monitoring and prompt intervention are necessary to prevent blood glucose (BG) fluctuation and delay long-term diabetes complications. People with DM are advised to clean their hands before SMBG to remove any dirt or food residue that might affect the reading. AIM: The study tested the hypothesis that falsely elevated BG levels from fingertip occur after peeling or handling fruits in an unwashed hand...
November 2016: Annals of Medical and Health Sciences Research
https://www.readbyqxmd.com/read/28531147/oriented-growth-of-%C3%AE-mno%C3%A2-nanorods-using-natural-extracts-from-grape-stems-and-apple-peels
#3
Lina Sanchez-Botero, Adriana P Herrera, Juan P Hinestroza
We report on the synthesis of alpha manganese dioxide (α-MnO₂) nanorods using natural extracts from Vitis vinifera grape stems and Malus domestica 'Cortland' apple peels. We used a two-step method to produce highly crystalline α-MnO₂ nanorods: (1) reduction of KMnO₄ in the presence of natural extracts to initiate the nucleation process; and (2) a thermal treatment to enable further solid-state growth of the nuclei. Transmission electron microscopy (TEM) and field emission scanning electron microscopy (FESEM) images provided direct evidence of the morphology of the nanorods and these images were used to propose nucleation and growth mechanisms...
May 22, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28531103/screening-of-a-combinatorial-library-of-organic-polymers-for-the-solid-phase-extraction-of-patulin-from-apple-juice
#4
Cristina Giovannoli, Giulia Spano, Fabio Di Nardo, Laura Anfossi, Claudio Baggiani
Patulin is a water-soluble mycotoxin produced by several species of fungi. Governmental bodies have placed it under scrutiny for its potential negative health effects, and maximum residue limits are fixed in specific food matrices to protect consumers' health. Confirmatory analysis of patulin in complex food matrices can be a difficult task, and sample clean-up treatments are frequently necessary before instrumental analyses. With the aim of simplifying the clean-up step, we prepared a 256-member combinatorial polymeric library based on 16 functional monomers, four cross-linkers and four different porogenic solvents...
May 20, 2017: Toxins
https://www.readbyqxmd.com/read/28514061/mapping-intermediate-degradation-products-of-poly-lactic-co-glycolic-acid-in-vitro
#5
Jian Li, Peter Nemes, Ji Guo
There is widespread interest in using absorbable polymers, such as poly(lactic-co-glycolic acid) (PLGA), as components in the design and manufacture of new-generation drug eluting stents (DES). PLGA undergoes hydrolysis to progressively degrade through intermediate chemical entities to simple organic acids that are ultimately absorbed by the human body. Understanding the composition and structure of these intermediate degradation products is critical not only to elucidate polymer degradation pathways accurately, but also to assess the safety and performance of absorbable cardiovascular implants...
May 17, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28512699/an-open-label-crossover-study-of-the-pharmacokinetics-of-the-60-mg-edoxaban-tablet-crushed-and-administered-either-by-a-nasogastric-tube-or-in-apple-puree-in-healthy-adults
#6
Kenneth Duchin, Anil Duggal, George J Atiee, Motonori Kidokoro, Tadanobu Takatani, Nicole Lazarus Shipitofsky, Ling He, George Zhang, Tarundeep Kakkar
BACKGROUND: Edoxaban is an orally active, direct factor Xa inhibitor indicated to reduce the risk of stroke and systemic embolism in non-valvular atrial fibrillation and for the treatment of venous thromboembolism. OBJECTIVES: This study assessed the pharmacokinetics, safety, and tolerability of the edoxaban 60-mg tablet crushed and administered via a nasogastric tube in a water suspension or orally mixed in apple puree. METHODS: This phase 1, open-label, crossover study randomized 30 healthy adults to receive three edoxaban treatment regimens (oral 60-mg edoxaban tablet, or 60-mg edoxaban tablet crushed and administered via a nasogastric tube or orally in apple puree) in one of six treatment sequences...
May 17, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28501172/combining-phagomagnetic-separation-with-immunoassay-for-specific-fast-and-sensitive-detection-of-staphylococcus-aureus
#7
Chenghui Yan, Yun Zhang, Hang Yang, Junping Yu, Hongping Wei
A Staphylococcus aureus (S. aureus)-specific lytic bacteriophage P-S. aureus-9, isolated from an environmental water sample, was assembled on magnetic beads for capturing S. aureus from samples through magnetic separation. Horseradish Peroxidase (HRP) labeled immunoglobulin (IgG) antibodies were used to detect the captured S. aureus by reacting with protein A on S. aureus followed by colorimetric signals, which were generated from the catalytic reaction between HRP and the substrate 3,3',5,5'-Tetramethylbenzidine (TMB)...
August 1, 2017: Talanta
https://www.readbyqxmd.com/read/28494095/comparison-of-192-ir-169-yb-and-60-co-high-dose-rate-brachytherapy-sources-for-skin-cancer-treatment
#8
Habib Safigholi, Ali S Meigooni, William Y Song
PURPOSE: To evaluate the possibility of utilizing the high-dose rate (HDR) (169) Yb and (60) Co sources, in addition to (192) Ir, for the treatment of skin malignancies with conical applicators. METHODS: Monte Carlo (MC) simulations were used to benchmark the dosimetric parameters of single (169) Yb (4140), (60) Co (Co0.A86), and (192) Ir (mHDR-V2) brachytherapy sources in a water phantom and compared their results against published data. A standard conical tungsten alloy Leipzig-style applicator (Stand...
May 11, 2017: Medical Physics
https://www.readbyqxmd.com/read/28477405/multilaboratory-validation-of-first-action-method-2016-04-for-determination-of-four-arsenic-species-in-fruit-juice-by-high-performance-liquid-chromatography-inductively-coupled-plasma-mass-spectrometry
#9
Kevin Kubachka, Douglas T Heitkemper, Sean Conklin
Before being designated AOAC First Action Official Method(SM) 2016.04, the U.S. Food and Drug Administration’s method, EAM 4.10 High Performance Liquid Chromatography–Inductively Coupled Plasma–Mass Spectrometric Determination of Four Arsenic Species in Fruit Juice, underwent both a single-laboratory validation and a multilaboratory validation (MLV) study. Three federal and five state regulatory laboratories participated in the MLV study, which is the primary focus of this manuscript. The method was validated for inorganic arsenic (iAs) measured as the sum of the two iAs species arsenite [As(III)] and arsenate [As(V)], dimethylarsinic acid (DMA), and monomethylarsonic acid (MMA) by analyses of 13 juice samples, including three apple juice, three apple juice concentrate, four grape juice, and three pear juice samples...
May 5, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28458988/migration-of-aluminum-from-food-contact-materials-to-food-a-health-risk-for-consumers-part-ii-of-iii-migration-of-aluminum-from-drinking-bottles-and-moka-pots-made-of-aluminum-to-beverages
#10
Thorsten Stahl, Sandy Falk, Alice Rohrbeck, Sebastian Georgii, Christin Herzog, Alexander Wiegand, Svenja Hotz, Bruce Boschek, Holger Zorn, Hubertus Brunn
BACKGROUND: Drinking bottles and stove-top moka pots made of aluminum have become very popular. Storing drinks in bottles and preparing coffee in a moka pot may result in the migration of aluminum to the beverage. RESULTS/CONCLUSIONS: In a systematic study of aluminum drinking bottles, it has been shown that drinking a mixture of apple juice and mineral water in an aluminum bottle may reach 86.6% of the total weekly intake (TWI) for adults, and drinking tea from an aluminum bottle may exceed the TWI (145%) for a child weighing 15 kg...
2017: Environmental Sciences Europe
https://www.readbyqxmd.com/read/28444365/evaluation-of-attractants-for-monitoring-drosophila-suzukii-diptera-drosophilidae
#11
Andrew J Frewin, Justin Renkema, Hannah Fraser, Rebecca H Hallett
Drosophila suzukii Matsumura is an economically important pest of soft and small fruit crops. Unlike other drosophilid flies, D. suzukii is capable of infesting ripe and partially ripe fruit, which poses a significant pest management challenge, as there is no tolerance for infested or damaged fruit in the marketplace. As a result, producers in many regions rely on calendar-scheduled insecticide applications for D. suzukii management. In order to develop an integrated pest management approach, better tools for monitoring adult fly populations are needed...
June 1, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28419504/sensory-and-rheological-characteristics-of-thickened-liquids-differing-concentrations-of-a-xanthan-gum-based-thickener
#12
Hyeri Kim, Han-Im Hwang, Ki-Won Song, Jeehyun Lee
The objectives of this study were to develop and compare sensory characteristics of beverages and soups thickened with different concentrations of a xanthan gum-based thickener, and to examine, using rheological measurement, whether the viscosity of the thickened liquids conformed to the recommendations of the National Dysphagia Diet Task Force. Beverages tested included water, plum juice, apple juice, orange juice, milk, soymilk, and Yakult. The thickening agent was added to samples at concentrations of 1%, 2%, or 3%...
April 17, 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28419130/virus-induced-down-regulation-of-gmera1a-and-gmera1b-genes-enhances-the-stomatal-response-to-abscisic-acid-and-drought-resistance-in-soybean
#13
Takuya Ogata, Yukari Nagatoshi, Noriko Yamagishi, Nobuyuki Yoshikawa, Yasunari Fujita
Drought is a major threat to global soybean production. The limited transformation potential and polyploid nature of soybean have hindered functional analysis of soybean genes. Previous research has implicated farnesylation in the plant's response to abscisic acid (ABA) and drought tolerance. We therefore used virus-induced gene silencing (VIGS) to evaluate farnesyltransferase genes, GmERA1A and GmERA1B (Glycine max Enhanced Response to ABA1-A and -B), as potential targets for increasing drought resistance in soybean...
2017: PloS One
https://www.readbyqxmd.com/read/28407434/spatiotemporal-characterization-of-hydration-process-of-asymmetric-polymeric-wound-dressings-for-decubitus-ulcers
#14
Anna Górska, Przemyslaw Dorożyński, Władysław P Węglarz, Krzysztof Jasiński, Mateusz Kurek, Renata Jachowicz, Jolanta Klaja, Piotr Kulinowski
Pressure ulcers belong to the most chalenging clinical problems. As hydration level of such wounds is important for optimal healing, preparation of new wound dressing (WD) materials for pressure ulcers requires thorough in vitro evaluation as prerequisite to final in vivo testing. The aims of the study were to: (a) develop a simple method of preparation of asymmetric polymeric membrane, (b) to propose a set of in vitro methods for membrane characterization during hydration. A polyvinyl alcohol asymmetric membrane with homogeneous skin layer and porous spongy layer was developed with nonadhesive properties and ability to absorb and retain the water...
April 13, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28394535/-metaphylaxis-of-urolithiasis-new-look-modern-approach-implementation-in-a-mobile-application
#15
N K Gadzhiev, S S Brovkin, V E Grigorev, V V Dmitriev, V A Malkhasyan, D D Shkarupa, A V Pisarev, D A Mazurenko, V M Obidnyak, I N Orlov, S V Popov, N S Tagirov, S V Petrov
AIM: To analyze the sub-segment of mHealth devoted to assessing of the risk of recurrent stone formation and metaphylaxis of stone formation. To design a smartphone application (app.) in Russian language for urolithiasis patients. MATERIALS AND METHODS: Three working groups of urologists from three St. Petersburg clinics searched for downloadable medical applications relevant to the above requirements. After searching and analyzing existing medical applications, the most acceptable design and structure of our own application were identified...
April 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28383892/enantioseparation-of-imazalil-and-monitoring-of-its-enantioselective-degradation-in-apples-and-soils-using-ultrahigh-performance-liquid-chromatography-tandem-mass-spectrometry
#16
Runan Li, Fengshou Dong, Jun Xu, Xingang Liu, Xiaohu Wu, Xinglu Pan, Yan Tao, Zenglong Chen, Yongquan Zheng
Imazalil is a widely used systemic chiral fungicide that is still being employed as a racemic mixture without distinguishing the difference between enantiomers, which often leads to its inaccurate risk assessment. In this study, a robust and highly sensitive chiral separation method was developed for imazalil enantiomers by ultrahigh-performance liquid chromatography-tandem mass spectrometry and was further applied to study the degradation dynamics of imazalil enantiomers in apples and field soils at three sites in China...
April 13, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28376257/the-stiffness-of-a-crosslinked-hyaluronan-hydrogel-affects-its-chondro-induction-activity-on-hadscs
#17
Benjamin Teong, Shun-Cheng Wu, Chien-Mei Chang, Jhen-Wei Chen, Hui-Ting Chen, Chung-Hwan Chen, Je-Ken Chang, Mei-Ling Ho
Matrix stiffness plays an important role in stem cell differentiation. This study reports the synthesis of methacrylated hyaluronan (MeHA) with different degrees of methacrylation, ranging from 15 to 140% per disaccharide unit, which corresponds to a matrix stiffness ranging from 1.5 to 8 KPa. The swelling ratio was inversely proportional to the matrix stiffness, but the water content remained constant at >97% of the hydrogel mass. A fibril-like surface morphology and larger pore size were observed in lyophilized MeHA hydrogel with a lower stiffness...
April 4, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28371212/a-self-deploying-drug-release-device-using-polymeric-films
#18
Taro Kondo, Zhaleh Kashkouli Nezhad, Jin Suzuki, Nobuhiro Nagai, Matsuhiko Nishizawa, Toshiaki Abe, Hirokazu Kaji
Herein, we report a sheet-type device capable of self-deployment and sustained release of protein type drugs. The device consisted of a thin photopolymerized polyethylene glycol dimethacrylate (PEGDM) sheet and collagen microparticles (COLs), which were embedded in the sheet as drug carriers and for increased drug permeation. When the density of the COLs in the sheet was increased to be sufficiently interconnected, the drug permeability was increased. In addition, since protein type drugs electrostatically interacted with the COLs, a prolonged sustained release was possible...
March 29, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28369892/iron-species-determination-by-task-specific-ionic-liquid-based-in-situ-solvent-formation-dispersive-liquid-liquid-microextraction-combined-with-flame-atomic-absorption-spectrometry
#19
Susan Sadeghi, Vahid Ashoori
BACKGROUND: The task specific ionic liquid (TSIL) of 1-N-ethtyl-3-methylimidazolium bromide functionalized with 8-hydroxyquinoline was used as chelating agent and extracting solvent for dispersive liquid-liquid microextraction (DLLME) and subsequent determination of Fe(III) by flame atomic absorption spectrometry(FAAS). The in-situ solvent formation of the TSIL using KPF6 provided the desired water immiscible IL. The total Fe concentration could be determined after preoxidation of Fe(II) to Fe(III)...
March 30, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28346743/fabrication-of-a-mechanically-anisotropic-poly-glycerol-sebacate-membrane-for-tissue-engineering
#20
Chi-Nung Hsu, Pei-Yuan Lee, Ho-Yi Tuan-Mu, Chen-Yu Li, Jin-Jia Hu
Poly(glycerol sebacate) (PGS) has been used successfully as a scaffolding material for soft tissue engineering. PGS scaffolds, however, are usually mechanically isotropic, which may restrict their use in tissue repairs as many soft tissues in the body have anisotropic mechanical behaviors. Although various methods have been used to fabricate anisotropic scaffolds, it remains challenging to make anisotropic scaffolds from thermoset PGS. Here a new, simple method to fabricate an anisotropic PGS membrane which can then be used to construct thicker three-dimensional anisotropic scaffolds was developed...
March 27, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
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