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https://www.readbyqxmd.com/read/29161007/polymer-based-technologies-for-sensing-applications
#1
Wildemar Stefanio Pereira Carvalho, Menglian Wei, Nduka Ikpo, Yongfeng Gao, Michael J Serpe
Reports in the literature on the development of new chemical sensing technologies have been growing steadily in number for years. For example, a Web of Science topic search using the term "Chemical Sensing" revealed that over 8,000 papers were published in 2015-2017, with over 40,000 citations to those papers. In this review, we focus on highlighting recent examples of chemical sensing related to human health (e.g., disease diagnosis, health monitoring, and water/food safety), and for environmental monitoring...
November 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29160062/arsenene-based-heterostructures-high-efficient-bifunctional-materials-for-photovoltaics-and-photocatalytics
#2
Xianghong Niu, Yunhai Li, QiongHua Zhou, Huabing Shu, Jinlan Wang
Constructing suitable type II heterostructures is a reliable solution for high-efficient photovoltaic and photocatalytic materials. Arsenene, as a rising member of mono-elemental two-dimensional materials, shows great potential as a building block of heterostructures due to its suitable band gap, high carrier mobility and good optical properties. Based on accurate band structure calculations by combining many-body perturbation GW method with an extrapolation technique, we demonstrate that arsenene-based heterostructures paired with molybdenum disulfide, tetracyano-quinodimethane or tetracyanonaphtho-quinodimethane can form type-II band alignments...
November 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29158619/the-effect-of-mineral-based-alkaline-water-on-hydration-status-and-the-metabolic-response-to-short-term-anaerobic-exercise
#3
Jakub Chycki, Tomasz Zając, Adam Maszczyk, Anna Kurylas
Previously it was demonstrated that mineralization and alkalization properties of mineral water are important factors influencing acid-base balance and hydration in athletes. The purpose of this study was to investigate the effects of drinking different types of water on urine pH, specific urine gravity, and post-exercise lactate utilization in response to strenuous exercise. Thirty-six male soccer players were divided into three intervention groups, consuming around 4.0 l/day of different types of water for 7 days: HM (n=12; highly mineralized water), LM (n=12; low mineralized water), and CON (n=12; table water)...
September 2017: Biology of Sport
https://www.readbyqxmd.com/read/29158344/effects-of-walking-in-water-on-gut-hormone-concentration-and-appetite-comparison-with-walking-on-land
#4
Shin-Ya Ueda, Hidehiro Nakahara, Eriko Kawai, Tatsuya Usui, Shintaro Tsuji, Tadayoshi Miyamoto
The effects of water exercise on gut hormone levels and appetite currently remain unclear. The aim of the present study was to investigate the effects of treadmill walking in water on gut hormone levels and appetite. Thirteen men (mean±S.D. age: 21.6±2.2 years, body mass index: 22.7±2.8 kg/m2, peak oxygen uptake (VO2peak): 49.8±7.8 ml/kg per min) participated in the walking in water and on land challenge. During the study period, ratings of subjective feelings of hunger, fullness, satiety, and motivation to eat were reported on a 100-mm visual analogue scale...
November 20, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/29158062/effect-of-change-in-fluid-status-evaluated-by-bioimpedance-techniques-on-body-composition-in-hemodialysis-patients
#5
Samer R Abbas, Stephan Thijssen, Erik L Penne, Jochen G Raimann, Li Liu, Murat H Sipahioglu, Eric Seibert, Yuedong Wang, Yuqi Chen, Qingqing Xiao, Nathan W Levin, Peter Kotanko, Fansan Zhu
OBJECTIVE: This prospective study uses calf bioimpedance spectroscopy (cBIS) to guide the attainment of dry weight (DWcBIS) in chronic hemodialysis (HD) patients. The primary aim of this study was to evaluate whether body composition is altered when fluid status is reduced to DWcBIS. METHODS: Target post-HD weight was gradually reduced from baseline (BL) until DWcBIS was achieved. DWcBIS was defined as the presence of both flattening of the curve of extracellular resistance and the attainment calf normalized resistivity in the normal range during the dialysis treatment...
November 18, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29157971/health-risk-assessment-of-haloacetonitriles-in-drinking-water-based-on-internal-dose
#6
Ying Zhang, Xuemei Han, Zhiguang Niu
To estimate the health risk of haloacetonitriles in different kinds of drinking water, the concentrations of haloacetonitriles in tap water, boiled water and direct drinking water were detected. The physiologically based pharmacokinetic (PBPK) model was used to calculate internal dose in the human body for haloacetonitriles through ingestion, and the probability distributions of the non-carcinogenic risk of haloacetonitriles for human via drinking water were assessed. This study found that the mean concentrations of dichloroacetonitrile (DCAN) in tap water, boiled water and direct drinking water were 0...
November 17, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29157817/cardioprotective-action-of-the-aqueous-extract-of-terminalia-arjuna-bark-against-toxicity-induced-by-doxorubicin
#7
Sarah Bishop, Shi J Liu
BACKGROUND: The aqueous extract of Terminalia arjuna (TA) bark (TAAqE) has been shown to have a direct inotropic effect on ventricular myocytes. Active constituents of TAAqE contain various flavonoids and proanthocyanidins, some of which are known to have antioxidant activities. Whether TAAqE affords a cardioprotective action against oxidative stress (OS) remains unclear. PURPOSE: Increased OS is one of the major mechanisms underlying cardiotoxicity induced by doxorubicin (DOX), a commonly-used anticancer agent...
December 1, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29157042/head-out-immersion-in-hot-water-increases-serum-bdnf-in-healthy-males
#8
Daisuke Kojima, Takeshi Nakamura, Motohiko Banno, Yasunori Umemoto, Tokio Kinoshita, Yuko Ishida, Fumihiro Tajima
PURPOSE: Brain-derived neurotrophic factor (BDNF) is an important neurotrophin. The present study investigated the effects of head-out water immersion (HOI) on serum BDNF concentrations. METHODS: Eight healthy men performed 20 min head-out water immersion at 42 °C (hot-HOI) and 35 °C (neutral-HOI). These experimental trials were administered in a randomised order separated by at least 7 days. Venous blood samples were withdrawn at rest, immediately after the 20-min HOI, as well as at 15 and 30 min after the end of the HOI...
November 20, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29156534/effects-of-standardized-isopropanolic-black-cohosh-and-estrogen-on-salivary-function-in-ovariectomized-rats
#9
Shuya Liu, Kaiyu Niu, Yunmeng Da, Yao Liu, Jing Zhang, Wenjuan Wang, Yi Zhang, Hai Jiang, Ke Wang, Wenpei Bai, Lihua Qin, Jing Jia
Oral dryness is a common feature in menopausal women. Estrogen therapy can relieve this symptom; however, the underlying mechanism was not clear. Standardized isopropanolic black cohosh (Actaea racemosa; Remifemin) can also relieve menopausal symptoms, such as hot flashes and sweating. Our previous study showed that standardized isopropanolic black cohosh could protect the submandibular gland structure. To investigate the effects and possible mechanisms of action of estrogen and standardized isopropanolic black cohosh on submandibular gland function in ovariectomized (OVX) rats, we measured body weight, daily water consumption, and blood flow in the submandibular glands...
November 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156441/modeling-spray-drift-and-runoff-related-inputs-of-pesticides-to-receiving-water
#10
Xuyang Zhang, Yuzhou Luo, Kean S Goh
Pesticides move to surface water via various pathways including surface runoff, spray drift and subsurface flow. Little is known about the relative contributions of surface runoff and spray drift in agricultural watersheds. This study develops a modeling framework to address the contribution of spray drift to the total loadings of pesticides in receiving water bodies. The modeling framework consists of a GIS module for identifying drift potential, the AgDRIFT model for simulating spray drift, and the Soil and Water Assessment Tool (SWAT) for simulating various hydrological and landscape processes including surface runoff and transport of pesticides...
November 17, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29156433/evaluating-features-of-periphytic-diatom-communities-as-biomonitoring-tools-in-fresh-brackish-and-marine-waters
#11
Lalit K Pandey, Yogesh Chandra Sharma, Jihae Park, Soyeon Choi, Hojun Lee, Jie Lyu, Taejun Han
The aims of this study were to assess the biodiversity of periphytic diatom assemblages in fresh, brackish and marine waterbodies of Korea, and to assess the effect of environmental and anthropogenic factors on parameters such as the quantity and biovolume of lipid bodies and deformations of diatoms as early warning measures of anthropogenic impact. Diatom samples were collected from 31 sites (14 freshwater, 10 brackish and 7 marine), which included less impacted (upstream) and impacted (downstream) sites in each water type...
November 10, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/29156334/applicability-evaluation-of-advanced-processes-for-elimination-of-neurophysiological-activity-of-antidepressant-fluoxetine
#12
László Szabó, Viktória Mile, Dóra J Kiss, Krisztina Kovács, Tamás Földes, Tamás Németh, Tünde Tóth, Renáta Homlok, György T Balogh, Erzsébet Takács, László Wojnárovits
Presence of the antidepressant fluoxetine in different water bodies has raised significant concerns due to its detrimental effects on non-targeted organisms, especially on fish. When seeking for an appropriate technology able to remove fluoxetine residue from a complex water matrix, special attention needs to be paid to the elimination of the neurophysiological activity that eventually lies behind the noxious effects of the parent compound. Our aim was to probe the applicability of advanced oxidation techniques for this purpose using in situ generated free radical system based on OH-initiated peroxyl radical-mediated processes...
November 11, 2017: Chemosphere
https://www.readbyqxmd.com/read/29156282/pesticides-in-agricultural-headwater-streams-in-southwestern-germany-and-effects-on-macroinvertebrate-populations
#13
Gero Weber, Nicole Christmann, Ann-Cathrin Thiery, Dieter Martens, Jochen Kubiniok
Pesticides are a major burden for stream ecosystems in the central European cultivated landscape. The objective of the present study was to investigate the applicability of ecological indicator methods in relation to toxicity of pesticides under the specific hydro-morphological conditions in small water bodies. Thus, an association of toxicity evaluating methods with different ecological indicators was to be attempted. Based on three random samples taken within the 2016 vegetation period, 23 headwater areas in the Saarland were investigated to test for pesticides and their metabolites...
November 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29156265/occurrence-and-fate-of-most-prescribed-antibiotics-in-different-water-environments-of-tehran-iran
#14
Roya Mirzaei, Masud Yunesian, Simin Nasseri, Mitra Gholami, Esfandiyar Jalilzadeh, Shahram Shoeibi, Alireza Mesdaghinia
The presence of most prescribed antibiotic compounds from four therapeutic classes (β-lactam, cephalosporins, macrolides, fluoroquinolones) were studied at two full-scale WWTPs, two rivers, thirteen groundwater resources, and five water treatment plants in Tehran. Analytical methodology was based on high performance liquid chromatography/tandem mass spectrometry after solid-phase extraction. Samples were collected at 33 sample locations on three sampling periods over four months from June to August 2016. None of the target antibiotics were detected in groundwater resources and water treatment plants, while seven out of nine target antibiotics were analyzed in two studied river waters as well as the influent and effluent of wastewater treatment plants at concentrations ranging from <LOQ to 926...
November 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29156156/effects-of-arachidonic-acid-eicosapentaenoic-acid-and-docosahexaenoic-acid-on-brain-development-using-artificial-rearing-of-delta-6-desaturase-knockout-mice
#15
Akiko Harauma, Erisa Hatanaka, Hidemi Yasuda, Manabu T Nakamura, Norman Salem, Toru Moriguchi
This study focused on the effect of polyunsaturated fatty acids (PUFAs) during the lactation period of delta-6-desaturase knockout (D6D-KO) mice using an artificial rearing method. Newborn pups of D6D-KO male mice were separated from their dams within 48h and were fed artificial milk. Six formulations of milk were used: Control (Cont) milk (3.9% α-linolenic acid and 18% linoleic acid), + 1.3% arachidonic acid (ARA), + 1.2% docosahexaenoic acid (DHA), + 1.3% eicosapentaenoic acid (EPA), + 1.1% ARA + 1.3% DHA, and + 1...
December 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29155718/the-murine-choline-deficient-ethionine-supplemented-cde-diet-model-of-chronic-liver-injury
#16
Jully Gogoi-Tiwari, Julia Köhn-Gaone, Corey Giles, Dirk Schmidt-Arras, Francis D Gratte, Caryn L Elsegood, Geoffrey W McCaughan, Grant A Ramm, John K Olynyk, Janina E E Tirnitz-Parker
Chronic liver diseases, such as viral hepatitis, alcoholic liver disease, or non-alcoholic fatty liver disease, are characterized by continual inflammation, progressive destruction and regeneration of the hepatic parenchyma, liver progenitor cell proliferation, and fibrosis. The end-stage of every chronic liver disease is cirrhosis, a major risk factor for the development of hepatocellular carcinoma. To study processes regulating disease initiation, establishment, and progression, several animal models are used in laboratories...
October 21, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155306/reverse-t3-interacts-with-%C3%AE-v%C3%AE-3-integrin-receptor-and-restores-enzyme-activities-in-the-hippocampus-of-hypothyroid-developing-rats-insight-on-signaling-mechanisms
#17
Juliana Tonietto Domingues, Daiane Cattani, Patricia Acordi Cesconetto, Bianka Alzira Nascimento de Almeida, Paula Peirozan, Guilherme Razzera, Fátima Regina Mena Barreto Silva, Regina Pessoa-Pureur, Ariane Zamoner
In the present study we provide evidence that 3,3',5'-triiodothyronine (reverse T3, rT3) restores neurochemical parameters induced by congenital hypothyroidism in rat hippocampus. Congenital hypothyroidism was induced by adding 0.05% propylthiouracil in the drinking water from gestation day 8 and continually up to lactation day 15. In the in vivo rT3 exposure, hypothyroid 12-day old pups were daily injected with rT3 (50 ng/kg body weight) or saline until day 14. In the ex vivo rT3 treatment, hippocampal slices from 15-day-old hypothyroid pups were incubated for 30 min with or without rT3 (1 nM)...
November 16, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29155267/chronic-subcutaneous-infusion-of-neurosecretory-protein-gm-increases-body-mass-gain-in-chicks
#18
Kenshiro Shikano, Shusuke Taniuchi, Eiko Iwakoshi-Ukena, Megumi Furumitsu, George E Bentley, Lance J Kriegsfeld, Kazuyoshi Ukena
Recently we discovered a small hypothalamic protein in the chicken, named neurosecretory protein GL (NPGL), which is associated with body growth and energy metabolism in birds and rodents. Genome database analysis suggested that the NPGL gene has a paralogous gene in vertebrates, named neurosecretory protein GM (NPGM). However, the biological action of NPGM remains unclear. In this study, we investigated whether NPGM affects body growth in chicks. We found that subcutaneous infusion of NPGM for six days increased body mass gain in a dose-dependent manner...
November 16, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29154846/effect-of-piper-betle-on-giardia-intestinalis-infection-in-vivo
#19
Radka Pecková, Karel Doležal, Bohumil Sak, Dana Květoňová, Martin Kváč, Wisnu Nurcahyo, Ivona Foitová
Piper betle has been used as a medicinal plant in traditional medical systems throughout South and South East Asia. Experimental studies have revealed its wide and diverse biological and pharmacological effects. In this study, antigiardial activity of Piper betle was tested using experimental infections of Giardia intestinalis, the most common cause of protozoal diarrhoea worldwide, in Mongolian gerbils. Plants were extracted in water, methanol and methanol:tetrahydrofuran. Gerbils were treated for ten days intragastrically twice a day, with the dose of 40 mg of the extract per 100 g of body weight...
November 14, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/29154844/anticoccidial-effects-of-areca-nut-areca-catechu-l-extract-on-broiler-chicks-experimentally-infected-with-eimeria-tenella
#20
Dingfa Wang, Luli Zhou, Wei Li, Hanlin Zhou, Guanyu Hou
To study the anticoccidial effects of areca nut extract (ANE) on coccidiosis, 270 one-day old Wenchang broiler chicks were divided into six equal groups, each with three replicate cages (n = 15 per cage). The six groups were the blank control group (BC), negative control group (NC), positive control group (PC), and three ANE-treated groups. The birds in the three control groups (BC, NC and PC) were fed a basal diet without ANE supplementation. The birds in the three ANE-treated groups were fed a basal diet supplied with ANE at 100 (T1), 200 (T2), or 300 (T3) mg/kg feed...
November 14, 2017: Experimental Parasitology
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