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Qiqi Wang, Jiadan Xue, Yaguo Wang, Shunji Jin, Qi Zhang, Yong Du
Vibrational modes of 2-thiobarbituric acid (TBA) tautomeric polymorphs (form I, II and IV) were characterized by terahertz time-domain spectroscopy (THz-TDS) and Raman spectral techniques. The experimental results indicate that both vibrational spectroscopy techniques could be used to recognize the above TBA three tautomeric forms clearly. Experimental THz spectral results show that each of TBA tautomeric polymorphs has distinctive fingerprint peaks in the terahertz region. Raman spectra also show similar results about differences of TBA tautomeric polymorphs, but not significant as that of terahertz spectra since Raman-active vibrational modes are mostly from intra-molecular interaction of various functional groups within the specific molecule while that of terahertz region is more sensitive to inter-molecular interaction within crystalline unit cells...
June 11, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Sanigdha Acharya, S K Sharma, Vinita Khandegar
Groundwater quality should be continuously monitored for irrigation and drinking purpose so that risk from geochemical contaminants can be reduced by appropriate treatment method. Therefore, the focus of the present study was to determine the suitability of groundwater collected from South West Delhi, India, for irrigation and drinking purpose on the basis of various water quality indices. In order to assess the groundwater quality, 50 samples were collected from different sites of selected study area and parameters such as pH, EC (electrical conductivity), total dissolved solids (TDS), salinity, total hardness (TH), total alkalinity (HCO3 - ), calcium (Ca+2 ), magnesium (Mg+2 ), sodium (Na+ ), potassium (K+ ), chloride (Cl- ), Fluoride (F- ), sulfates (SO4 -2 ) and Nitrates (NO3 - ) were determined...
June 2018: Data in Brief
Qian Sun, Ronghe Chen, Fan Xin, Guohong Ruan
OBJECTIVE: To explore the effect of three kinds of drinking water and its possible mechanism on blood pressure of hypertensive mice. METHODS: The water quality parameters were measured for three kinds of drinking water, and the parameters includedtotal dissolved solids( TDS), oxygen consumed( OC), p H, oxidation reduction potential( ORP), electric conductivity( EC), dissolved hydrogen, calcium and magnesium. Establishment of mouse model of high blood pressure by using N'-nitro-L-arginine methyl ester hydrochloride( L-NAME) for 30 days...
November 2017: Wei Sheng Yan Jiu, Journal of Hygiene Research
Farzaneh Baghal Asghari, Ali Akbar Mohammadi, Mohammad Hadi Dehghani, Mahmood Yousefi
The aim of this study was to Monitoring of physical and chemical characteristics of ground water including Ca2+ , Mg2+ , EC, pH, TDS, TH, <mml:math xmlns:mml=""> <mml:mrow> <mml:mi>H</mml:mi> <mml:mi>C</mml:mi> <mml:msubsup> <mml:mrow> <mml:mi>O</mml:mi> </mml:mrow> <mml:mrow> <mml:mn>3</mml:mn> </mml:mrow> <mml:mrow> <mml:mo>-</mml:mo> </mml:mrow> </mml:msubsup> </mml:mrow> </mml:math> , Na+ , K+ , Cl- , SAR, %Na and <mml:math xmlns:mml="http://www...
June 2018: Data in Brief
Sanigdha Acharya, S K Sharma, Vinita Khandegar
In the present study, hydro-geochemical characteristics of groundwater samples collected from South West Delhi, India, have been assessed. 50 sampling locations were recorded with the help of global positioning system, to assess the groundwater quality and evaluate the corrosion and scaling potential. Hydro-geochemical characterization for different parameters such as pH, temperature (T), electrical conductivity (EC), total dissolved solids (TDS), salinity (SA), total hardness (TH), total alkalinity ( <mml:math xmlns:mml="http://www...
June 2018: Data in Brief
Abbas Abbasnia, Majid Radfard, Amir Hossein Mahvi, Ramin Nabizadeh, Mahmood Yousefi, Hamed Soleimani, Mahmood Alimohammadi
The present study was conducted to evaluate the groundwater quality and its suitability for irrigation purpose through GIS in villages of Chabahr city, Sistan and Baluchistan province in Iran. This cross-sectional study was carried out from 2010 to 2011 the 1-year-monitoring period. The water samples were collected from 40 open dug wells in order to investigate the water quality. Chemical parameters including EC, SAR, Na+ , Cl- , pH, TDS, <mml:math xmlns:mml=""> <mml:mrow> <mml:msubsup> <mml:mrow> <mml:mi>H</mml:mi> <mml:mi>C</mml:mi> <mml:mi>O</mml:mi> </mml:mrow> <mml:mrow> <mml:mn>3</mml:mn> </mml:mrow> <mml:mrow> <mml:mo>-</mml:mo> </mml:mrow> </mml:msubsup> </mml:mrow> </mml:math> and IWQI were analyzed...
August 2018: Data in Brief
Jeffrey A Hansen, Bryant C Jurgens, Miranda S Fram
Total dissolved solids (TDS) concentrations in groundwater tapped for beneficial uses (drinking water, irrigation, freshwater industrial) have increased on average by about 100 mg/L over the last 100 years in the San Joaquin Valley, California (SJV). During this period land use in the SJV changed from natural vegetation and dryland agriculture to dominantly irrigated agriculture with growing urban areas. Century-scale salinity trends were evaluated by comparing TDS concentrations and major ion compositions of groundwater from wells sampled in 1910 (Historic) to data from wells sampled in 1993-2015 (Modern)...
June 9, 2018: Science of the Total Environment
Rinet Dauti, Barbara Cvikl, Bledar Lilaj, Patrick Heimel, Andreas Moritz, Andreas Schedle
PURPOSE: Purpose of this study was to evaluate the accuracy of fit of cemented polymer infiltrated ceramic network (PICN) material crowns manufactured after digital and conventional impression techniques using micro computed tomography (CT). Furthermore to determine the cement space volume and porosities in the cement layer. METHODS: A molar typodont tooth was prepared for PICN material crowns and replicated thirty times. The dies were randomly divided into three groups of 10 specimens each according to the impression technique: 3M True Definition Scanner (TDS), cara TRIOS (Trios) and Impregum Penta Soft (Impregum)...
June 8, 2018: Journal of Prosthodontic Research
Iwona Rotter, Aleksandra Rył, Katarzyna Grzesiak, Aleksandra Szylińska, Wioletta Pawlukowska, Anna Lubkowska, Olimpia Sipak-Szmigiel, Krzysztof Pabisiak, Maria Laszczyńska
Introduction/Objective : The aim of the study was to show which of the adipose tissue accumulation indicators correlate with testosterone disorders in non-diabetic aging men. Material and methods : 455 non diabetic men, recruited at primary care facilities, aged 50⁻75 participated in the study. The participants underwent anthropometric measurement and ELISA determination of total testosterone (TT), estradiol (E₂), dehydroepiandrosterone sulphate (DHEA-S), sex hormone binding protein (SHBG), and the determination of fasting glucose (FPG), high-density lipids cholesterol (HDL-Ch), and triacylglycerols (TAG) in serum...
June 8, 2018: International Journal of Environmental Research and Public Health
Sergio Merino Salas
The transdermal route for administration of anticholinergic drugs can provide efficacy with less systemic adverse effects. The transdermal oxybutynin patch (OXYTDS) offers advantages over oral administration for patients treated for Overactive bladder (OAB) syndrome. The limited evidence on the OXY-TDS patch application areas of the skin, makes difficult counseling patients who require a change to skin zones other than those recommended by the manufacturer. The preliminary experience of four patients included in this case report suggests that changing the application area for the OXY-TDS patch outside those skin areas recommended by the manufacturer, seems effective and safe in the treatment of OAB syndrome, regardless of the characteristics of the patients...
June 2018: Archivos Españoles de Urología
Abeni Beshiru, Oladapo T Okareh, Vincent N Chigor, Etinosa O Igbinosa
Surface waters are important to humans because they are a significant water supply source. They are, however, under serious environmental stress and are being threatened as a consequence of developmental activities. The present study describes the physicochemical properties and water quality indices of five different rivers used for drinking and other domestic activities in rural and pre-urban communities in Edo North, Nigeria. The physicochemical variable ranges include pH [wet season (6.47 ± 0.30-6.89 ± 0...
June 9, 2018: Environmental Monitoring and Assessment
Celia De La Mora-Orozco, Irma Julieta González-Acuña, Ruben Alfonso Saucedo-Terán, Hugo Ernesto Flores-López, Hector Osbaldo Rubio-Arias, Jesús Manuel Ochoa-Rivero
Pollutants from pig farms in Mexico have caused problems in many surface water reservoirs. Growing concern has driven the search for low-cost wastewater treatment solutions. The objective of this research was to evaluate the potential of an in-series constructed wetland to remove nutrients from wastewater from a pig farm. The wetland system had a horizontal flow that consisted of three cells, the first a surface water wetland, the second a sedimentation cell, and the third a subsurface flow wetland. The vegetation used was Thypa sp...
May 21, 2018: International Journal of Environmental Research and Public Health
Yuzhan Yang, Ping Ni, Yangchun Gao, Wei Xiong, Yan Zhao, Aibin Zhan
Dispersal, rather than species sorting, is widely recognized as the dominant driver for determining meta-community structure at fine geographical scales in running water ecosystems. However, this view has been challenged by a recently proposed "fine-scale species sorting hypothesis," where community structure can be largely determined by an environmental gradient formed by local pollution at fine scales. Here, we tested this hypothesis by studying community composition and geographical distribution of metazoan zooplankton in a heavily polluted river-the North Canal River in the Haihe River Basin, China...
May 2018: Ecology and Evolution
Anuprita D Watharkar, Suhas K Kadam, Rahul V Khandare, Parag D Kolekar, Byong-Hun Jeon, Jyoti P Jadhav, Sanjay P Govindwar
This study explores the potential of Asparagus densiflorus to treat disperse Rubin GFL (RGFL) dye and a real textile effluent in constructed vertical subsurface flow (VSbF) phytoreactor; its field cultivation for soil remediation offers a real green and economic way of environmental management. A. densiflorus decolorized RGFL (40 gm L-1 ) up to 91% within 48 h. VSbF phytoreactor successfully reduced American dye manufacture institute (ADMI), BOD, COD, Total Dissolved Solids (TDS) and Total Suspended Solids (TSS) of real textile effluent by 65%, 61%, 66%, 48% and 66%, respectively within 6 d...
May 30, 2018: Ecotoxicology and Environmental Safety
Simon A Bretschneider, Ivan Ivanov, Hai I Wang, Kiyoshi Miyata, Xiaoyang Zhu, Mischa Bonn
Notwithstanding the success of lead-halide perovskites in emerging solar energy conversion technologies, many of the fundamental photophysical phenomena in this material remain debated. Here, the initial steps following photogeneration of free charge carriers in lead-iodide perovskites are studied, and timescales of charge carrier cooling and polaron formation, as a function of temperature and charge carrier excess energy, are quantified. It is found, using terahertz time-domain spectroscopy (THz-TDS), that the observed femtosecond rise in the photoconductivity can be described very well using a simple model of sequential charge carrier cooling and polaron formation...
May 30, 2018: Advanced Materials
Fabian Lurz, Thomas Ostertag, Benedict Scheiner, Robert Weigel, Alexander Koelpin
Wireless surface acoustic wave (SAW) sensors have some unique features that make them promising for industrial metrology. Their decisive advantage lies in their purely passive operation and the wireless readout capability allowing the installation also at particularly inaccessible locations. Furthermore, they are small, low-cost and rugged components on highly stable substrate materials and thus particularly suited for harsh environments. Nevertheless, a sensor itself does not carry out any measurement but always requires a suitable excitation and interrogation circuit: a reader...
May 28, 2018: Sensors
Aytekin Ünlü, Soner Yılmaz, Özlem Yalçın, Metin Uyanık, Patrizio Petrone, Rıza Aytaç Çetinkaya, İbrahim Eker, Murat Urkan, Taner Özgürtaş, İsmail Yaşar Avcı, Nazif Zeybek
INTRODUCTION: Hemorrhage is the leading cause of injury related pre-hospital mortality. We investigated worst case scenarios and possible requirements of Turkish Military. As we plan to use blood resources during casualty transport, the impact of transport related mechanical stress on PRBC (packed red blood cell) were analyzed. MATERIAL AND METHODS: The in vitro experiment was performed in the environmental test laboratories of ASELSAN®. Operational vibrations of potential casualty transport mediums such as Sikorsky Helicopters, Kirpi® Armoured Vehicle and NATO vibration standardsoftware MIL-STD-810G were recorded...
May 28, 2018: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
Mudit Dixit, Michal Weitman, Jiali Gao, Dan T Major
Wang et al. recently reported an in silico study of the trichodiene synthase (TDS) conversion of farnesyl diphosphate (FPP) to trichodiene (TD) (Wang et al., ACS Catal. 2017, 7 , 5841-5846). Although the methods and level of theory used in that work are nearly identical to our own recent work on this system (Dixit et al., ACS Catal. 2017, 7 , 812-818), Wang et al. reach rather different conclusions. The authors claimed to obtain a "very credible" mechanism for the biosynthesis of TD and optimized the optimal folding mode of FPP in the 1,6-ring closure in TDS...
2018: ACS Catalysis
Alicia M Rich, Michael D Wasserman, Caroline Deimel, Scott K Breeden, Frederika Kaestle, Kevin D Hunt
BACKGROUND: We present 3 likely cases of testicular dysgenesis syndrome (TDS) within a community of chimpanzees (Pan troglodytes schweinfurthii). We tested whether genetic drift may be the culprit, as a genetic cause has been suspected to account for TDS among other wildlife. METHODS: We successfully sequenced a 367-bp segment spanning the first hypervariable region within the D-loop of the mitochondrial genome for 78 DNA samples. RESULTS: We found 24 polymorphic sequence sites consisting of 7 singletons and 17 parsimony informative sites...
May 25, 2018: Journal of Medical Primatology
Antonia Santner, Martin Kopp, Peter Federolf
INTRODUCTION: Physical training may play a prominent role in the development of preadolescent brains, but it is yet to be determined what type of exercise may generate higher cognitive effects, and if concurrent mental engagement provides further efficacy. The aim of this study is to investigate motor and cognitive effects of a 9-week exercise intervention in children aged 6-10 years. Trainings include the automatisation of challenging coordination exercises with concurrent mental tasks (intervention group) and multisport exercises with and without mental tasks (two control groups)...
May 24, 2018: BMJ Open
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