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https://www.readbyqxmd.com/read/28732397/combined-sewer-overflow-events-and-childhood-emergency-department-visits-a-case-crossover-study
#1
Cole Brokamp, Andrew F Beck, Louis Muglia, Patrick Ryan
In localities with combined sewer systems, combined sewer overflow (CSO) events frequently occur following high precipitation and can result in the release of untreated sewage and industrial wastewater into surface waters. We hypothesized that either direct contact with or proximity to aerosolized CSO effluent would increase the risk for childhood emergency department (ED) visits for asthma, gastrointestinal (GI) illnesses, and skin and soft tissue infections (SSTIs) in Cincinnati, OH, USA. ED visits for 2010-2014 due to GI diseases, asthma, and SSTIs were extracted from the Cincinnati Children's Hospital Medical Center electronic health records...
July 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28732362/acute-atorvastatin-treatment-restores-the-cardioprotective-effects-of-ischemic-postconditioning-in-hyperlipidemic-rats
#2
Tao Sun, Hong-Ju Zhang, Chayakrit Krittanawong, Su Wang, Ying Tao, Zhao Li, Qiancheng Yin, Donghua Zhang, Qian Wang, Ji Huang, Jingmei Zhang, Zhizhong Li, Yutong Cheng
BACKGROUND: Ischemic Postconditioning (IPC) reduces ischemia/reperfusion (I/R) injury under normal conditions. HMG-CoA reductase inhibitors (statins), which inhibit the synthesis of mevalonate, can interfere with the cardioprotective effect of IPC. However, the beneficial role of IPC in hyperlipidemic patients, post-acute administration of statins remains unknown. This study was to determine if acute administration of atorvastatin affect the infarct size-limiting effect of IPC in hyperlipidemic rats...
July 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732350/the-prevalence-of-polycystic-ovary-syndrome-in-reproductiveaged-women-of-different-ethnicity-a-systematic-review-and-meta-analysis
#3
Tao Ding, Paul J Hardiman, Irene Petersen, Fang-Fang Wang, Fan Qu, Gianluca Baio
The prevalence of PCOS was investigated in many studies in different continents. However, there is no established prevalence of PCOS for distinct ethnic groups. In the current analysis, we conducted searches in PubMed, The Cochrane Library, EMBASE, CINAHL up to Jan. 2017 to identify studies reporting prevalence of PCOS in the general female population. Forty-two studies were identified, with 13 eligible for evidence synthesis. The prevalence among different ethnicity was estimated using random effect modelling...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732344/visible-light-driven-label-free-photoelectrochemical-immunosensor-based-on-tio2-s-bivo4-ag2s-nanocomposites-for-sensitive-detection-ota
#4
Jinhui Feng, Yueyun Li, Zengqiang Gao, Hui Lv, Xiaobo Zhang, Dawei Fan, Qin Wei
A label-free photoelectrochemical (PEC) platform with high visible-light activity for quantitative detection of the ochratoxin A (OTA) was developed by assembly of Ag2S nanoparticles (NPs) sensitized on titanium dioxide/red blood cell-like shape bismuth vanadate (TiO2/S-BiVO4) electrode via layer-by-layer (LBL) strategy. In this protocol, ascorbic acid was used as an efficient electron donor for scavenging photo-generated holes and inhibiting light driven electron-hole pair recombination. TiO2 has good photoelectric activity and large surface area...
July 13, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28732335/characteristics-and-source-apportionment-of-pm2-5-during-persistent-extreme-haze-events-in-chengdu-southwest-china
#5
Lulu Li, Qinwen Tan, Yuanhang Zhang, Miao Feng, Yu Qu, Junling An, Xingang Liu
Based on detailed data from Chengdu Plain (CP) from 6 January to 16 January, two typical haze episodes were analyzed to clarify the haze formation mechanism in winter. Weather conditions, chemical compositions, secondary pollutant transformation, optical properties of aerosols, the potential source contribution function (PSCF) and source apportionment were studied. The planetary boundary layer (PBL) height decreased distinctly during the haze episodes and restrained air pollutant vertical dispersion. As the haze worsened, the value of PBL × PM2...
July 18, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28732333/p-nitrophenol-degradation-by-electro-fenton-process-pathway-kinetic-model-and-optimization-using-central-composite-design
#6
J Meijide, E Rosales, M Pazos, M A Sanromán
The chemical process scale-up, from lab studies to industrial production, is challenging and requires deep knowledge of the kinetic model and the reactions that take place in the system. This knowledge is also useful in order to be employed for the reactor design and the determination of the optimal operational conditions. In this study, a model substituted phenol such as p-nitrophenol was degraded by electro-Fenton process and the reaction products yielded along the treatment were recorded. The kinetic model was developed using Matlab software and was based on main reactions that occurred until total mineralization which allowed predicting the degradation pathway under this advanced oxidation process...
July 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/28732303/do-analog-number-representations-underlie-the-meanings-of-young-children-s-verbal-numerals
#7
Susan Carey, Anna Shusterman, Paul Haward, Rebecca Distefano
Children learn to count, and even learn the cardinal meanings of the first three or four verbal numerals ("one" through "three" or "four"), before they master the numerical significance of counting. If so, it follows that the cardinal meanings of those first few numerals cannot be derived, initially, from their place in the count list and the counting routine. What non-verbal representations, then, support the cardinal meanings of verbal numerals before children have mastered how counting does so? Four experiments addressed the commonly adopted assumption that in the earliest period of learning the meanings of number words, children map verbal numerals to regions of the analog number system (ANS), a system of representation with numerical content that is widely attested in animals and in human infants...
July 18, 2017: Cognition
https://www.readbyqxmd.com/read/28732301/a-case-of-multiple-inflammatory-hepatic-pseudotumor-protruding-from-the-liver-surface-after-colonic-cancer
#8
Toshikatsu Nitta, Jun Kataoka, Yoshihiro Inoue, Kensuke Fujii, Masahito Ohta, Hiroshi Kawasaki, Atsushi Takeshita, Takashi Ishibashi
INTRODUCTION: Inflammatory hepatic pseudotumor (IHPT) is an important benign liver disease because it is difficult to clinically and radiologically distinguish from malignant tumors. PRESENTATION OF CASE: Here, we describe a case of a 67-year-old male patient diagnosed with multiple inflammatory hepatic pseudotumors. The patient had undergone left hemicolectomy for descending colonic cancer (T3 N0 M0 stage IIA) 2 years prior. He underwent segment 6 and segment 7 partial hepatectomy because of suspected liver metastasis...
June 8, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28732297/influence-of-environmental-conditions-on-the-toxicokinetics-of-cadmium-in-the-marine-copepod-acartia-tonsa
#9
Maria D Pavlaki, Rui G Morgado, Cornelis A M van Gestel, Ricardo Calado, Amadeu M V M Soares, Susana Loureiro
mMarine and estuarine ecosystems are highly productive areas that often act as a final sink for several pollutants, such as cadmium. Environmental conditions in these habitats can affect metal speciation, as well as its uptake and depuration by living organisms. The aim of this study was to assess cadmium uptake and depuration rates in the euryhaline calanoid copepod Acartia tonsa under different pH, salinity and temperature conditions. Cadmium speciation did not vary with changing pH or temperature, but varied with salinity...
July 18, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28732286/development-of-liquid-chromatographic-methods-for-enantioseparation-and-sensitive-detection-of-%C3%AE-adrenolytics-%C3%AE-2-agonists-in-human-plasma-using-a-single-enantiomer-reagent
#10
Poonam Malik, Ravi Bhushan
Enantioseparation of four commonly used β-adrenolytics (bisoprolol, salbutamol, and carvedilol, marketed as racemic mixtures) has been achieved by both TLC and RPHPLC via an indirect approach. A new chiral reagent, (S)-naproxen benzotriazole ester, was synthesized and it was characterized by UV, IR, (1)HNMR, elemental analysis and polarimetry. It was used to synthesize diastereomeric derivatives of the three β-adrenolytics under microwave irradiation. TLC separation of diastereomeric derivatives was achieved which were then isolated by preparative approach; these were characterized and were used as standard reference for determining absolute configuration of diastereomeric derivatives and for establishing validated HPLC method for enantioseparation and sensitive detection of the three β-adrenolytics in human plasma...
July 14, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28732275/plot-farm-and-watershed-scale-effects-of-coffee-cultivation-in-runoff-and-sediment-production-in-western-puerto-rico
#11
Carlos E Ramos-Scharrón, Yasiel Figueroa-Sánchez
The combination of a topographically abrupt wet-tropical setting with the high level of soil exposure that typifies many sun-grown coffee farms represents optimal conditions for high erosion rates. Although traditionally considered as a main cause for water resource degradation, limited empirical evidence has existed to document its true contribution. This study relies on plot-scale experimental results conducted in western Puerto Rico to assess the impact of cultivated surfaces and farm access roads on runoff and sediment production from the plot to the farm and watershed scales...
July 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28732270/unexpected-histopathology-of-acute-appendicitis
#12
Mutee Ur Rehman, Felik Paulus, Min Hoe Chew
INTRODUCTION: Appendicular diverticula and associated diverticulitis is a rare disease. Patients present commonly with symptoms of acute appendicitis and require laparoscopic or open surgery. Diagnosis is usually made only on histology. Here, we present a rare case of acute diverticulitis of the appendix. CASE PRESENTATION: A 33-year old gentleman presented with right iliac fossa pain of 3 days duration. On admission, appendicitis was diagnosed on Computerized Tomography (CT) scan and laparoscopic appendicectomy was subsequently performed...
July 10, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28732266/effect-of-heat-treatments-on-the-microstructure-and-formability-of-al-mg-mn-sc-zr-alloy
#13
Yudai Miyake, Yukio Sato, Ryo Teranishi, Kenji Kaneko
Microstructures and formability of scandium and zirconium added Al-Mg-Mn alloy sheets with various heating conditions were examined to improve their mechanical properties. Formability of these samples were judged by the Lankford value, r-value. It was possible to fabricate mechanically balanced Al-Mg-Mn-Sc-Zr alloy with high hardness 76.2 Hv and with high formability with r=1.2, by not only adding scandium and zirconium but also optimizing the heat treatment conditions.
July 11, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28732264/insights-into-plant-phosphate-sensing-and-signaling
#14
REVIEW
Byung-Kook Ham, Jieyu Chen, Yan Yan, William J Lucas
Phosphorus (P) is a macronutrient essential for plant growth, therefore, soil P level is critical to crop yield potential in agriculture. As Pi levels limit crop yield under many soil conditions, it is crucial to understand the mechanisms by which plants adapt to low-phosphate (Pi) soil conditions and interact with their soil microbiome to improve crop P use efficiency, in order to ensure global food security. Recent advances have been made towards achieving this goal through advancing our understanding of the plant's response to limiting Pi conditions to maintain P homeostasis...
July 18, 2017: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/28732263/proteomic-analysis-of-naturally-occurring-boron-tolerant-plant-gypsophila-sphaerocephala-l-in-response-to-high-boron-concentration
#15
Huseyin Tombuloglu, Guzin Tombuloglu, Mehmet Serdal Sakcali, Ali Turkan, Khalid Rehman Hakeem, Hesham F Alharby, Shah Fahd, Waseem Mohammed Abdul
Gypsophila sphaerocephala is a naturally Boron (B) tolerant species that can grow around the B mining areas in Turkey, where the B concentration in soil reaches a lethal dose for plants (up to ∼8900mgkg(-1) (∼140mM). While its interesting survival capacity in extremely B containing soils, any molecular research has been conducted to understand its high tolerance mechanism yet. In the present study, we have performed a proteomic analysis of this plant to understand its high tolerance towards B-stress. Seedlings of G...
July 4, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28732261/predictors-of-disclosure-management-behavior-at-the-end-of-1-year-follow-up-in-korean-adults-with-newly-diagnosed-epilepsy
#16
Sang-Ahm Lee, Soon-Kee No, Hyungkook Park, Ok-Joon Kim, Jee-Hyun Kwon, Ji-Yeon Ryu, Sang-Moo Lee, Kwang-Deog Jo
PURPOSE: Epilepsy is a concealable stigmatizing condition. We investigated the factors predicting disclosure management behavior in Korean adults with newly diagnosed epilepsy. METHODS: This longitudinal multicenter study included Korean adults with newly diagnosed epilepsy. Using statistical analyses, we determined at the end of a 1-year follow-up whether Disclosure Management Scale (DMS) scores were predicted by demographic, clinical, and psychosocial variables, including felt stigma, stress coping style, personality traits, social support, and experienced discrimination from society...
July 18, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28732251/nutrient-deficiency-and-obstetrical-outcomes-in-pregnant-women-following-roux-en-y-gastric-bypass-a-retrospective-danish-cohort-study-with-a-matched-comparison-group
#17
Lianna Hede Hammeken, Ramsina Betsagoo, Ann Nygaard Jensen, Anne Nødgaard Sørensen, Charlotte Overgaard
OBJECTIVE: Roux-en-Y gastric bypass surgery and small-for-gestational-age births are known to be associated although the etiology is not fully understood. This study aimed to investigate pregnancy outcomes and maternal nutritional status among pregnant women with a history of Roux-en-Y gastric bypass using maternal anemia and gestational weight gain as indicators of micronutrient and macronutrient deficiency in pregnancy. STUDY DESIGN: The study was designed as a retrospective matched cohort study...
July 12, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28732248/effects-of-adults-contingent-responding-on-infants-behavior-in-ambiguous-situations
#18
Gunilla Stenberg
We examined the effect of adults' contingency in responding to infants' behavior in an ambiguous situation in two experiments. In Experiment 1, forty-four 12-month-old infants were exposed to an ambiguous toy. An unfamiliar adult responded either contingently or non-contingently to the infant's bids and then presented the toy and provided positive information. During toy presentation, infants in the non-contingent condition looked less at the experimenter than infants in the contingent condition. In a concluding free-play situation infants in the non-contingent condition played less and tended to touch the toy less...
July 18, 2017: Infant Behavior & Development
https://www.readbyqxmd.com/read/28732241/generation-of-skeletal-myogenic-progenitors-from-human-pluripotent-stem-cells-using-non-viral-delivery-of-minicircle-dna
#19
Jaemin Kim, Vanessa K P Oliveira, Ami Yamamoto, Rita C R Perlingeiro
Currently, the most efficient and promising approach for generating large numbers of engraftable human skeletal myogenic progenitors from pluripotent stem cells requires the conditional in vitro overexpression of PAX7 using lentiviral vectors. Because a non-integrating approach would be preferable to eliminate or minimize the risk associated with random genomic integration, here we investigate whether transient expression of PAX7 using minicircle DNA would enable the generation of functional pluripotent stem cell-derived myogenic progenitors, equivalent to those generated by lentivirus...
July 12, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28732233/piecewise-convexity-of-artificial-neural-networks
#20
Blaine Rister, Daniel L Rubin
Although artificial neural networks have shown great promise in applications including computer vision and speech recognition, there remains considerable practical and theoretical difficulty in optimizing their parameters. The seemingly unreasonable success of gradient descent methods in minimizing these non-convex functions remains poorly understood. In this work we offer some theoretical guarantees for networks with piecewise affine activation functions, which have in recent years become the norm. We prove three main results...
July 3, 2017: Neural Networks: the Official Journal of the International Neural Network Society
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