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https://www.readbyqxmd.com/read/29763762/removal-of-pcdd-fs-pcp-and-mercury-from-sediments-thermal-oxidation-versus-pyrolysis
#1
Moo-Been Chang, Yen-Chen Hsu, Shu-Hao Chang
A continuous pilot-scale system (CPS) equipped with effective air pollution control devices (APCDs) is used for remediating the sediments contaminated with PCDD/Fs, PCP and Hg simultaneously. The removal efficiencies of these three pollutants in sediments collected from seawater pond and river, respectively, are evaluated via thermal treatment processes. PAHs and CBz formed during thermal oxidation and pyrolysis are also analyzed for better understanding the behaviors of chlorinated organic compounds. Experimental results indicate that low-molecular-weight PAHs are closely related to the formation of CBz, PCDD/Fs, and CPs, while low chlorinated PCDD/Fs and CBz are predominant in flue gas with thermal oxidation...
May 7, 2018: Chemosphere
https://www.readbyqxmd.com/read/29627407/long-term-opioid-use-after-inpatient-surgery-a-retrospective-cohort-study
#2
Karsten Bartels, Ana Fernandez-Bustamante, Shannon K McWilliams, Christian J Hopfer, Susan K Mikulich-Gilbertson
BACKGROUND: Knowledge of incidence and risk factors for long-term opioid prescribing is critical for surgical patients. In this retrospective cohort study, we linked information available at the time of surgery with prescription data to ascertain characteristics associated with prolonged opioid therapy. METHODS: Patients (n = 6003) with claims in the Colorado All Payer Claims Database (APCD) were matched with 20,501 encounters in a clinical database. Rates of prescription filling were defined by at least one monthly opioid claim relative to the date of surgery...
March 27, 2018: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29517144/utility-of-fetal-anteroposterior-to-transverse-cerebellar-diameter-ratio-to-exclude-cerebellar-hypoplasia-in-trisomy-18
#3
Mayumi Takano, Masahiko Nakata, Ayako Oji, Sumito Nagasaki, Nahomi Umemura, Toshimitsu Maemura, Mineto Morita
AIM: This study was aimed to determine reference ranges for fetal cerebellar hemisphere biometry, including the transverse cerebellar diameter (TCD), anteroposterior cerebellar diameter (APCD) and APCD/TCD ratio in normal fetuses. In addition, we investigated which parameter would be useful for cerebellar hypoplasia in trisomy 18. METHODS: This retrospective study included 340 normal singleton pregnancies and 15 cases of trisomy 18, in all of which fetal cerebellar biometry was performed between 14 and 40 weeks of gestational age (GA)...
March 8, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29109091/transcriptomic-profiling-of-mda-mb-231-cells-exposed-to-boswellia-serrata-and-3-o-acetyl-b-boswellic-acid-er-upr-mediated-programmed-cell-death
#4
REVIEW
Elizabeth A Mazzio, Charles A Lewis, Karam F A Soliman
BACKGROUND/AIM: Triple-negative breast cancer (TNBC) is characterized by the absence of hormone receptors (estrogen, progesterone and human epidermal growth factor receptor-2) and a relatively poor prognosis due to inefficacy of hormone receptor-based chemotherapies. It is imperative that we continue to explore natural products with potential to impede growth and metastasis of TNBC. In this study, we screened over 1,000 natural products for capacity to induce cell death in TNBC (MDA-MB -231) cells...
November 2017: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/28942254/characterization-of-pcdd-fs-and-dioxin-like-pcbs-emitted-from-two-woodchip-boilers-in-taiwan
#5
Shih Ting Bai, Shu Hao Chang, Jing Min Duh, Fu Hsiang Sung, Jhen Sheng Su, Moo Been Chang
This study investigates the formation and removal of PCDD/Fs and dl-PCBs in two woodchips boilers during different operating periods. Results indicate that combustion condition affects PCDD/F and dl-PCB formation within the woodchip combustion process. PCDD/F and dl-PCB concentrations during the start-up period are much higher than those measured during normal operation and shut-down periods due to unstable combustion. PCDD/F and dl-PCB concentrations at APCDs inlet of Plant A are significantly higher than that of Plant B due to the lower combustion temperature (500-850 °C) compared with Plant B (850-925 °C)...
December 2017: Chemosphere
https://www.readbyqxmd.com/read/28914183/enhancing-mercury-removal-across-air-pollution-control-devices-for-coal-fired-power-plants-by-desulfurization-wastewater-evaporation
#6
Hu Bin, Yi Yang, Liang Cai, Yang Linjun, Szczepan Roszak
Desulfurization wastewater evaporation technology is used to enhance the removal of gaseous mercury (Hg) in conventional air pollution control devices (APCDs) for coal-fired power plants. It had been studied that gaseous Hg is oxidized and removed by selective catalytic reduction (SCR), an electrostatic precipitator (ESP) and a wet flue gas desulfurization (WFGD) in coal-fired thermal experiment platform with WFGD wastewater evaporation. Effects of desulfurization wastewater evaporation position, evaporation temperature, and chlorine ion concentration on Hg oxidation were studied as well...
September 15, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28779897/study-on-emission-of-hazardous-trace-elements-in-a-350-mw-coal-fired-power-plant-part-1-mercury
#7
Shilin Zhao, Yufeng Duan, Lei Chen, Yaning Li, Ting Yao, Shuai Liu, Meng Liu, Jianhong Lu
Hazardous trace elements (HTEs), especially mercury, emitted from coal-fired power plants had caused widespread concern worldwide. Field test on mercury emissions at three different loads (100%, 85%, 68% output) using different types of coal was conducted in a 350 MW pulverized coal combustion power plant equipped with selective catalytic reduction (SCR), electrostatic precipitator and fabric filter (ESP + FF), and wet flue gas desulfurization (WFGD). The Ontario Hydro Method was used for simultaneous flue gas mercury sampling for mercury at the inlet and outlet of each of the air pollutant control device (APCD)...
October 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28676155/characteristics-and-spending-patterns-of-high-cost-non-elderly-adults-in-massachusetts
#8
Jose F Figueroa, Austin B Frakt, Zoe M Lyon, Xiner Zhou, Ashish K Jha
BACKGROUND: Given that health care costs in Massachusetts continue to grow despite great efforts to contain them, we seek to understand characteristics and spending patterns of the costliest non-elderly adults in Massachusetts based on type of insurance. METHODS: We used the Massachusetts All-Payer Claims Database (APCD) from 2012 and analyzed demographics, utilization patterns and spending patterns across payers (Medicaid, Medicaid managed care, and private insurers) for high cost patients (those in the top 10% of spending) and non-high cost patients (the remaining 90%)...
December 2017: Healthcare
https://www.readbyqxmd.com/read/28594045/chromophorylation-in-escherichia-coli-of-allophycocyanin-b-subunits-from-far-red-light-acclimated-chroococcidiopsis-thermalis-sp-pcc7203
#9
Qian-Zhao Xu, Qi-Ying Tang, Jia-Xin Han, Wen-Long Ding, Bao-Qing Zhao, Ming Zhou, Wolfgang Gärtner, Hugo Scheer, Kai-Hong Zhao
Cyanobacterial phycobilisomes funnel the harvested light energy to the reaction centers via two terminal emitters, allophycocyanin B and the core-membrane linker. ApcD is the α-subunit of allophycocyanin B responsible for its red-shifted absorbance (λmax 665 nm). Far-red photo-acclimated cyanobacteria contain certain allophycocyanins that show even further red-shifted absorbances (λmax > 700 nm). We studied the chromophorylation of the three far-red induced ApcD subunits ApcD2, ApcD3 and ApcD4 from Chroococcidiopsis thermalis sp...
July 1, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28416223/study-on-emission-of-hazardous-trace-elements-in-a-350%C3%A2-mw-coal-fired-power-plant-part-2-arsenic-chromium-barium-manganese-lead
#10
Shilin Zhao, Yufeng Duan, Lei Chen, Yaning Li, Ting Yao, Shuai Liu, Meng Liu, Jianhong Lu
Hazardous Trace elements (HTEs) emitted from coal combustion has raised widespread concern. Studies on the emission characteristics of five HTEs, namely arsenic (As), chromium (Cr), barium (Ba), manganese (Mn), lead (Pb) at three different loads (100%, 83%, 71% output) and different coal types were performed on a 350 MW coal-fired power plant equipped with SCR, ESP + FF, and WFGD. HTEs in the flue gas at the inlet/outlet of each air pollution control device (APCD) were sampled simultaneously based on US EPA Method 29...
July 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28365856/coupled-rows-of-pbs-cores-and-psii-dimers-in-cyanobacteria-symmetry-and-structure
#11
Dmitry V Zlenko, Tatiana V Galochkina, Pavel M Krasilnikov, Igor N Stadnichuk
Phycobilisome (PBS) is a giant water-soluble photosynthetic antenna transferring the energy of absorbed light mainly to the photosystem II (PSII) in cyanobacteria. Under the low light conditions, PBSs and PSII dimers form coupled rows where each PBS is attached to the cytoplasmic surface of PSII dimer, and PBSs come into contact with their face surfaces (state 1). The model structure of the PBS core that we have developed earlier by comparison and combination of different fine allophycocyanin crystals, as reported in Zlenko et al...
September 2017: Photosynthesis Research
https://www.readbyqxmd.com/read/28288501/abdominal-pain-cramping-or-discomfort-impairs-quality-of-life-in-women-an-internet-based-observational-pilot-study-focussing-on-impact-of-treatment
#12
COMPARATIVE STUDY
Paul Enck, Ursula Koehler, Harald Weigmann, Stefan Mueller-Lissner
Background Abdominal pain, cramping, and discomfort (APCD) are experienced by up to 30 % of adults in Europe. Objective To assess the impact of APCD on quality of life (QoL) and to investigate the effectiveness, tolerability, and impact on QoL of hyoscine butylbromide (HBB, Buscopan(®)) compared with STW 5 (Iberogast(®)) or analgesics in women with APCD. Methods An internet-based observational pilot study was conducted in Germany in women who had predominantly used HBB, STW 5, or analgesics (n = 240 per treatment) to treat APCD...
March 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/28035608/emission-and-distribution-of-pcdd-fs-chlorobenzenes-chlorophenols-and-pahs-from-stack-gas-of-a-fluidized-bed-and-a-stoker-waste-incinerator-in-china
#13
Tianjiao Wang, Tong Chen, Xiaoqing Lin, Mingxiu Zhan, Xiaodong Li
The concentrations, homologue, and congener profiles, as well as the gas/particle distribution of polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs), chlorobenzenes (CBzs), chlorophenols (CPhs), and polyaromatic hydrocarbons (PAHs) from stack gas of two different municipal solid waste incinerators in China, were characterized. The incinerators were a stoker furnace incinerator equipped with the advanced air pollution control device (APCD) and a common circulating fluidized bed (CFB) furnace. The concentration of PCDD/Fs in the stack gas of the stoker incinerator ranged 0...
February 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27729442/the-new-politics-of-us-health-care-prices-institutional-reconfiguration-and-the-emergence-of-all-payer-claims-databases
#14
Philip Rocco, Andrew S Kelly, Daniel Béland, Michael Kinane
Prices are a significant driver of health care cost in the United States. Existing research on the politics of health system reform has emphasized the limited nature of policy entrepreneurs' efforts at solving the problem of rising prices through direct regulation at the state level. Yet this literature fails to account for how change agents in the states gradually reconfigured the politics of prices, forging new, transparency-based policy instruments called all-payer claims databases (APCDs), which are designed to empower consumers, purchasers, and states to make informed market and policy choices...
February 2017: Journal of Health Politics, Policy and Law
https://www.readbyqxmd.com/read/27450341/emission-characterization-and-%C3%AE-13-c-values-of-parent-pahs-and-nitro-pahs-in-size-segregated-particulate-matters-from-coal-fired-power-plants
#15
Ruwei Wang, Balal Yousaf, Ruoyu Sun, Hong Zhang, Jiamei Zhang, Guijian Liu
The objective of this study was to characterize parent polycyclic aromatic hydrocarbons (pPAHs) and their nitrated derivatives (NPAHs) in coarse (PM2.5-10), intermediate (PM1-2.5) and fine (PM1) particulate matters emitted from coal-fired power plants (CFPPs) in Huainan, China. The diagnostic ratios and the stable carbon isotopic approaches to characterize individual PAHs were applied in order to develop robust tools for tracing the origins of PAHs in different size-segregated particular matters (PMs) emitted CFPP coal combustion...
November 15, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27442027/testing-persistence-of-cohort-effects-in-the-epidemiology-of-suicide-an-age-period-cohort-hysteresis-model
#16
Louis Chauvel, Anja K Leist, Valentina Ponomarenko
Birth cohort effects in suicide rates are well established, but to date there is no methodological approach or framework to test the temporal stability of these effects. We use the APC-Detrended (APCD) model to robustly estimate intensity of cohort effects identifying non-linear trends (or 'detrended' fluctuations) in suicide rates. The new APC-Hysteresis (APCH) model tests temporal stability of cohort effects. Analysing suicide rates in 25 WHO countries (periods 1970-74 to 2005-09; ages 20-24 to 70-79) with the APCD method, we find that country-specific birth cohort membership plays an important role in suicide rates...
2016: PloS One
https://www.readbyqxmd.com/read/27422969/endovascular-treatment-in-the-acute-and-non-acute-phases-of-carotid-dissection-a-therapeutic-approach
#17
MULTICENTER STUDY
Fernando Delgado, Isabel Bravo, Elvira Jiménez, Eduardo Murías, Antonio Saiz, Pedro Vega, Antonio López-Rueda, Jordi Blasco, Juan Macho, Alejandro González
BACKGROUND: Carotid dissection (CD) may, in certain cases, lead to significant stenosis, occlusion, or pseudoaneurysm formation, causing embolic stroke or hemodynamic failure, despite medical therapy. OBJECTIVE: To evaluate the results of endovascular treatment and clinical outcomes of patients with CD. METHODS: A four-hospital retrospective study of endovascular treatment of extracranial CD in which medical treatment had failed or patients presented with a National Institute of Health Stroke Scale (NIHSS) score ≥8...
January 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27239966/emission-of-unintentionally-produced-persistent-organic-pollutants-upops-from-municipal-waste-incinerators-in-china
#18
Yuancheng Li, Yang Yang, Gang Yu, Jun Huang, Bin Wang, Shubo Deng, Yujue Wang
Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs), pentachlorobenzene (PeCBz) and hexachlorobenzene (HxCBz), which are listed in the Stockholm Convention, are commonly known as unintentionally produced persistent organic pollutants (UPOPs). As municipal waste incinerators (MWIs) have burgeoned in China, the emission of UPOPs is of great concerns. Compared to the extensive studies of PCDD/Fs emission, not much information of non-dioxin UPOPs (i.e., PCBs, HxCBz, and PeCBz) is available...
September 2016: Chemosphere
https://www.readbyqxmd.com/read/27088535/catalytic-hydrodechlorination-of-pcdd-fs-from-condensed-water-with-pd-%C3%AE-al2o3
#19
Mei-Chen Liu, Shu-Hao Chang, Moo-Been Chang
A continuous pyrolysis system (CPS) with effective air pollution control devices (APCDs) is designed and constructed to remediate the soil containing high-concentration PCDD/Fs. The quench tower of the APCDs system can capture the pollutants of high boiling points from the flue gas of CPS and produces condensed water of high PCDD/Fs concentration (16-44 ng I-TEQ/L), and needs further treatment. First, the result of activated carbon adsorption test displays the PCDD/Fs toxicity concentration of effluents meet the regulatory standards as the liquid to solid ratio is controlled at 3: 1...
July 2016: Chemosphere
https://www.readbyqxmd.com/read/27066327/dermatoglyphics-in-kidney-diseases-a-review
#20
REVIEW
Buddhika T B Wijerathne, Robert J Meier, Sujatha S Salgado, Suneth B Agampodi
Kidney diseases are becoming a major cause of global burden with high mortality and morbidity. The origins of most kidney diseases are known, but for some the exact aetiology is not yet understood. Dermatoglyphics is the scientific study of epidermal ridge patterns and it has been used as a non-invasive diagnostic tool to detect or predict different medical conditions that have foetal origin. However, there have been a limited number of studies that have evaluated a dermatoglyphic relationship in different kidney diseases...
2016: SpringerPlus
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