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https://www.readbyqxmd.com/read/28632908/prediction-of-groundwater-quality-trends-resulting-from-anthropogenic-changes-in-southeast-florida
#1
Quanghee Yi, Mark Stewart
The effects of surface water flow system changes caused by constructing water-conservation areas and canals in southeast Florida on groundwater quality under the Atlantic Coastal Ridge was investigated with numerical modeling. Water quality data were used to delineate a zone of groundwater with low total dissolved solids (TDS) within the Biscayne aquifer under the ridge. The delineated zone has the following characteristics. Its location generally coincides with an area where the Biscayne aquifer has high transmissivities, corresponds to a high recharge area of the ridge, and underlies a part of the groundwater mound formed under the ridge prior to completion of the canals...
June 20, 2017: Ground Water
https://www.readbyqxmd.com/read/28631509/comparison-of-quince-with-vitamin-b6-for-treatment-of-nausea-and-vomiting-in-pregnancy-a-randomised-clinical-trial
#2
Effat Jafari-Dehkordi, Fataneh Hashem-Dabaghian, Fatemeh Aliasl, Jaleh Aliasl, Maryam Taghavi-Shirazi, Omid Sadeghpour, Farnaz Sohrabvand, Bagher Minaei, Roshanak Ghods
This trial was performed to compare quince (Cydonia oblonga) fruit with vitamin B6 on 76 pregnant women with a gestational age of 6-14 weeks and mild-to-moderate nausea and vomiting (NVP) (40 in the quince and 36 in the B6 group). The 'Pregnancy-Unique Quantification of Emesis' (PUQE-24) scale was used to examine the severity of NVP. The quince syrup (1 tablespoon/TDS) or vitamin B6 tablets (20 mg/TDS) were used as intervention for 1 week. The mean (±SD) age was 27.5 (±5.2) years. The score of the PUQE was decreased from 9...
June 20, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28628489/shifting-of-the-line-of-sight-in-tilted-disk-syndrome
#3
Pinar Kosekahya, Ozge Sarac, Mustafa Koc, Mehtap Caglayan, Gozde Hondur, Nurullah Cagil
OBJECTIVES: To investigate the shifting of the line of sight (LoS) and the refractive, topographic, and aberrometric parameters that may be associated with the shifting of the LoS in eyes with tilted disk syndrome (TDS). METHODS: Eighty left eyes of 80 subjects with TDS (Study Group) and 70 left eyes of 70 subjects with myopia and astigmatism (Control Group) were included in this study. Line-of-sight coordinates on the horizontal (x) and vertical (y) axes, refractive, topographic, and aberrometric parameters were evaluated...
June 16, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28625350/multi-electrode-bioelectrochemical-system-for-the-treatment-of-high-total-dissolved-solids-bearing-chemical-based-wastewater
#4
G Velvizhi, S Venkata Mohan
Multi-electrode bioelectrochemical treatment system (ME-BET; membrane less) consisting of six electrode assemblies (E1-E6) was designed and fabricated for the treatment of complex chemical based wastewater with high salt concentration. The performance was compared with single electrode assembly BET reactor (SE-BET). Enhanced TDS and COD removal was observed in ME-BET (32%; 56%) compared to SE-BET (15%; 23%) as a result of in situ bio-potential from multi-electrodes through the oxidation of organic substrate in the wastewater...
May 10, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28623835/life-cycle-assessment-of-treatment-and-handling-options-for-a-highly-saline-brine-extracted-from-a-potential-co2-storage-site
#5
Hafiz H Salih, Jiaxing Li, Ruth Kaplan, Seyed A Dastgheib
Carbon dioxide (CO2) injection in deep saline aquifers is a promising option for CO2 geological sequestration. However, brine extraction may be necessary to control the anticipated increase in reservoir pressure resulting from CO2 injection. The extracted brines usually have elevated concentrations of total dissolved solids (TDS) and other contaminants and require proper handling or treatment. Different options for the handling or treatment of a high-TDS brine extracted from a potential CO2 sequestration site (Mt...
June 12, 2017: Water Research
https://www.readbyqxmd.com/read/28620687/identification-and-characterization-of-a-biosynthetic-gene-cluster-for-tryptophan-dimers-in-deep-sea-derived-streptomyces-sp-scsio-03032
#6
Liang Ma, Wenjun Zhang, Yiguang Zhu, Guangtao Zhang, Haibo Zhang, Qingbo Zhang, Liping Zhang, Chengshan Yuan, Changsheng Zhang
Tryptophan dimers (TDs) are an important class of natural products with diverse bioactivities and share conserved biosynthetic pathways. We report the identification of a partial gene cluster (spm) responsible for the biosynthesis of a class of unusual TDs with non-planar skeletons including spiroindimicins (SPMs), indimicins (IDMs), and lynamicins (LNMs) from the deep-sea derived Streptomyces sp. SCSIO 03032. Bioinformatics analysis, targeted gene disruptions, and heterologous expression studies confirmed the involvement of the spm gene cluster in the biosynthesis of SPM/IDM/LNMs, and revealed the indispensable roles for the halogenase/reductase pair SpmHF, the amino acid oxidase SpmO, and the chromopyrrolic acid (CPA) synthase SpmD, as well as the positive regulator SpmR and the putative transporter SpmA...
June 15, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28608140/on-the-road-to-development-of-an-in-vitro-permeation-test-ivpt-model-to-compare-heat-effects-on-transdermal-delivery-systems-exploratory-studies-with-nicotine-and-fentanyl
#7
Soo Hyeon Shin, Priyanka Ghosh, Bryan Newman, Dana C Hammell, Sam G Raney, Hazem E Hassan, Audra L Stinchcomb
PURPOSE: At elevated temperatures, the rate of drug release and skin permeation from transdermal delivery systems (TDS) may be higher than at a normal skin temperature. The aim of this study was to compare the effect of heat on the transdermal delivery of two model drugs, nicotine and fentanyl, from matrix-type TDSs with different formulations, using in vitro permeation tests (IVPT). METHODS: IVPT experiments using pig skin were performed on two nicotine and three fentanyl TDSs...
June 12, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28607188/analysis-of-electro-permeation-of-hydrogen-in-metallic-alloys
#8
A Raina, V S Deshpande, N A Fleck
A reaction-diffusion type modelling framework is presented to analyse both electro-permeation (EP) and thermal desorption spectrometry (TDS) measurements of hydrogen in metallic alloys. It is assumed that the kinetics of hydrogen motion is governed by diffusion through the lattice, along with trapping/detrapping at specific sites such as dislocations, grain boundaries, etc. It is shown that the trapping and detrapping rates are typically much faster than the diffusion rate, and consequently a simplification of the governing equations suffices such that local equilibrium exists between lattice and trapped hydrogen...
July 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28605686/solid-state-cocrystal-formation-between-acyclovir-and-fumaric-acid-terahertz-and-raman-vibrational-spectroscopic-studies
#9
Qiang Cai, Jiadan Xue, Qiqi Wang, Yong Du
The vibrational spectra of solid-state acyclovir, fumaric acid and their cocrystal have been investigated by using terahertz time-domain spectroscopy (THz-TDS) and Raman spectroscopy at room temperature. In experimental THz spectra, the cocrystal has absorption peaks in 0.65, 0.94 and 1.10THz respectively, while the raw materials are absolutely different in this region. Raman spectra also show similar results about differences between the cocrystal and raw materials. Density functional theory (DFT) was performed to simulate vibrational modes of different theoretical forms between acyclovir and fumaric acid...
June 9, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28603662/predicting-future-self-reported-motor-vehicle-collisions-in-subjects-with-primary-open-angle-glaucoma-using-the-penalized-support-vector-machine-method
#10
Kenya Yuki, Ryo Asaoka, Sachiko Awano-Tanabe, Takeshi Ono, Daisuke Shiba, Hiroshi Murata, Kazuo Tsubota
PURPOSE: We predict the likelihood of a future motor vehicle collision (MVC) from visual function data, attitudes to driving, and past MVC history using the penalized support vector machine (pSVM) in subjects with primary open-angle glaucoma (POAG). METHODS: Patients with POAG were screened prospectively for eligibility and 185 were analyzed in this study. Self-reported MVCs of all participants were recorded for 3 years from the baseline using a survey questionnaire every 12 months...
June 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28602857/current-health-risk-assessment-practice-for-dietary-cadmium-data-from-different-countries
#11
REVIEW
Soisungwan Satarug, David A Vesey, Glenda C Gobe
Cadmium (Cd) is an environmental toxicant with high rates of soil-to-plant transference. This makes exposure to Cd through the food-chain contamination a public health concern. Cd accumulates in kidneys, and the most frequently reported adverse effect of long-term Cd intake is injury to kidneys. The FAO/WHO Joint Expert Committee on Food Additives established a tolerable dietary intake level and a threshold to safeguard population health. The FAO/WHO tolerable intake was set at 25 μg per kg body weight per month (58 μg per day for a 70-kg person) with urinary Cd threshold at 5...
June 8, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28592357/physicochemical-parameters-affecting-the-perception-of-borehole-water-quality-in-ghana
#12
Alexandra V Kulinkina, Jeanine D Plummer, Kenneth K H Chui, Karen C Kosinski, Theodora Adomako-Adjei, Andrey I Egorov, Elena N Naumova
Rural Ghanaian communities continue using microbiologically contaminated surface water sources due in part to undesirable organoleptic characteristics of groundwater from boreholes. Our objective was to identify thresholds of physical and chemical parameters associated with consumer complaints related to groundwater. Water samples from 94 boreholes in the dry season and 68 boreholes in the rainy season were analyzed for 18 parameters. Interviews of consumers were conducted at each borehole regarding five commonly expressed water quality problems (salty taste, presence of particles, unfavorable scent, oily sheen formation on the water surface, and staining of starchy foods during cooking)...
May 22, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28590148/the-phonological-memory-profile-of-preschool-children-who-make-atypical-speech-sound-errors
#13
Rebecca Waring, Patricia Eadie, Susan Rickard Liow, Barbara Dodd
Previous research indicates that children with speech sound disorders (SSD) have underlying phonological memory deficits. The SSD population, however, is diverse. While children who make consistent atypical speech errors (phonological disorder/PhDis) are known to have executive function deficits in rule abstraction and cognitive flexibility, little is known about their memory profile. Sixteen monolingual preschool children with atypical speech errors (PhDis) were matched individually to age-and-gender peers with typically developing speech (TDS)...
June 7, 2017: Clinical Linguistics & Phonetics
https://www.readbyqxmd.com/read/28587795/bullying-social-support-and-psychological-distress-findings-from-relachs-cohorts-of-east-london-s-white-british-and-bangladeshi-adolescents
#14
Kamaldeep Bhui, Maria Joao Silva, Seeromanie Harding, Stephen Stansfeld
PURPOSE: The purpose of the study is to test whether bullying in adolescents relates to poor mental health and whether social support mitigated this effect. METHODS: In 2001, 28 schools in East London were randomly selected for surveys of two representative mixed ability classes: year 7 (11-12 years) and year 9 (13-14 years). Repeated measures were obtained from the same pupils 2 years later, using the Strengths and Difficulties Questionnaire (total difficulties score [TDS]) as a measure of psychological distress...
June 3, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28580652/transfer-of-ochratoxin-a-from-raw-black-tea-to-tea-infusions-prepared-according-to-the-turkish-tradition
#15
Jakub Toman, Frantisek Malir, Vladimir Ostry, Mehmet Akif Kilic, Tomas Roubal, Yann Grosse, Annie Pfohl-Leszkowicz
BACKGROUND: Ochratoxin A (OTA) is a natural contaminant of food including tea with multiple toxic effects, which poses a threat to human health. In terms of lifestyle, the Turkish population is a frequent visitor of tearooms, and the traditional Turkish tea preparation is one of the most popular ways of preparing tea infusion. RESULTS: The aim of this study was to investigate OTA transfer from raw black tea to the tea infusion prepared according to the Turkish tradition...
June 5, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28577404/sources-of-groundwater-salinity-and-potential-impact-on-arsenic-mobility-in-the-western-hetao-basin-inner-mongolia
#16
Yongfeng Jia, Huaming Guo, Beidou Xi, Yonghai Jiang, Zhuo Zhang, Rongxiao Yuan, Weixiong Yi, Xiaolei Xue
The quality of groundwater used for human consumption and irrigation in the Hetao Basin of Inner Mongolia, China is affected by elevated salinity as well as high arsenic (As) concentrations. However, the origin of high salinity and its potential impact on As mobility in the Basin remain unclear. This study explores both issues using stable isotopic compositions and Cl/Br ratios of groundwater as well as the major ions of both groundwater and leachable salts in aquifer sediments. Limited variations in δ(18)O and δ(2)H (-11...
May 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28573700/long-term-follow-up-of-fontan-completion-in-adults-and-adolescents
#17
Tai Fuchigami, Mitsugi Nagashima, Takeshi Hiramatsu, Goki Matsumura, Minori Tateishi, Noriyasu Masuda, Kenji Yamazaki
BACKGROUND: The Fontan procedure is rarely performed in adults and adolescents in the present era. We review our results with the Fontan procedure in adolescents and young adults. METHODS: Between 1974 and 2010, 79 consecutive patients underwent the Fontan procedure at an age ≥ 15 years (mean age at Fontan operation, 20.3 years ± 4.5 years). Forty-five patients underwent atriopulmonary connection, 11 underwent the Bjork procedure, and 23 underwent total cavopulmonary connection...
June 1, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28571433/highly-hydrogen-sensitive-thermal-desorption-spectroscopy-system-for-quantitative-analysis-of-low-hydrogen-concentration-%C3%A2-1-%C3%A3-10-16-atoms-cm-3-in-thin-film-samples
#18
Taku Hanna, Hidenori Hiramatsu, Isao Sakaguchi, Hideo Hosono
We developed a highly hydrogen-sensitive thermal desorption spectroscopy (HHS-TDS) system to detect and quantitatively analyze low hydrogen concentrations in thin films. The system was connected to an in situ sample-transfer chamber system, manipulators, and an rf magnetron sputtering thin-film deposition chamber under an ultra-high-vacuum (UHV) atmosphere of ∼10(-8) Pa. The following key requirements were proposed in developing the HHS-TDS: (i) a low hydrogen residual partial pressure, (ii) a low hydrogen exhaust velocity, and (iii) minimization of hydrogen thermal desorption except from the bulk region of the thin films...
May 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28566680/dibutyl-phthalate-induced-testicular-dysgenesis-originates-after-seminiferous-cord-formation-in-rats
#19
Nathália L M Lara, Sander van den Driesche, Sheila Macpherson, Luiz R França, Richard M Sharpe
Administration of dibutyl phthalate (DBP) to pregnant rats causes reproductive disorders in male offspring, resulting from suppression of intratesticular testosterone, and is used as a model for human testicular dysgenesis syndrome (TDS). DBP exposure in pregnancy induces focal dysgenetic areas in fetal testes that appear between e19.5-e21.5, manifesting as focal aggregation of Leydig cells and ectopic Sertoli cells (SC). Our aim was to identify the origins of the ectopic SC. Time-mated female rats were administered 750 mg/kg/day DBP in three different time windows: full window (FW; e13...
May 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28556188/effect-of-transcranial-direct-current-stimulation-on-neuroplasticity-in-corticomotor-pathways-of-the-tongue-muscles
#20
Mohit Kothari, Peter W Stubbs, Krystian Figlewski, Asger R Pedersen, Jim Jensen, Lene Baad-Hansen, Peter Svensson, Jørgen F Nielsen
To investigate effects of transcranial direct current stimulation (tDCS) on neuroplasticity in corticomotor pathways related to tongue muscles evoked by a training task using the Tongue Drive System (TDS). Using a cross-over design, 13 healthy participants completed two sessions of tDCS while performing 30 min of TDS training. Sessions were spaced at least 2 weeks apart and participants randomly received anodal and sham tDCS stimulation in the first session and the other condition in the second session. Single and paired pulse transcranial magnetic stimulation was used to elicit motor evoked potentials (MEPs) of the tongue at three time-points; before, immediately after and 30 min after training...
May 28, 2017: Journal of Oral Rehabilitation
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