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https://www.readbyqxmd.com/read/29146075/persistent-organic-pollutant-emission-via-dust-deposition-throughout-pakistan-spatial-patterns-regional-cycling-and-their-implication-for-human-health-risks
#1
Muhammad Sohail, Syed Ali Musstjab Akber Shah Eqani, Joel Podgorski, Avit Kumar Bhowmik, Adeel Mahmood, Nadeem Ali, Tara Sabo-Attwood, Habib Bokhari, Heqing Shen
In the current study, Persistent Organic Pollutants (POPs) in outdoor dustfall was monitored for the first time along the Indus river system of Pakistan. Among the studied OCPs (ng/g, dry weight), DDTs (0.16-62) were the predominant contaminants identified in deposited dust followed by HCHs (0.1-10.2), HCB (0.09-7.4) and chlordanes (0.1-2.8). The indicative diagnostic ratio for DDTs and HCHs suggested recent emission of DDTs as well as historical emission of both chemicals in regions where they were used for crop protection and malarial control...
November 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29145101/the-distribution-and-trends-of-persistent-organic-pollutants-and-mercury-in-marine-mammals-from-canada-s-eastern-arctic
#2
REVIEW
Tanya M Brown, Robie W Macdonald, Derek C G Muir, Robert J Letcher
Arctic contaminant research in the marine environment has focused on organohalogen compounds and mercury mainly because they are bioaccumulative, persistent and toxic. This review summarizes and discusses the patterns and trends of persistent organic pollutants (POPs) and mercury in ringed seals (Pusa hispida) and polar bears (Ursus maritimus) in the Eastern Canadian Arctic relative to the rest of the Canadian Arctic. The review provides explanations for these trends and looks at the implications of climate-related changes on contaminants in these marine mammals in a region that has been reviewed little...
November 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29143194/the-role-of-crowding-in-parallel-search-peripheral-pooling-is-not-responsible-for-logarithmic-efficiency-in-parallel-search
#3
Anna Madison, Alejandro Lleras, Simona Buetti
Recent results from our laboratory showed that, in fixed-target parallel search tasks, reaction times increase in a logarithmic fashion with set size, and the slope of this logarithmic function is modulated by lure-target similarity. These results were interpreted as being consistent with a processing architecture where early vision (stage one) processes elements in the display in exhaustive fashion with unlimited capacity and with a limitation in resolution. Here, we evaluate the contribution of crowding to our recent logarithmic search slope findings, considering the possibility that peripheral pooling of features (as observed in crowding) may be responsible for logarithmic efficiency...
November 15, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/29139246/-systemic-evaluation-and-meta-analysis-of-xianling-gubao-capsule-in-treatment-of-primary-osteoporosis-in-randomized-controlled-trials
#4
Gui-Qian Wang, Xing Liao, Yi-Li Zhang, Yan-Ming Xie
To evaluate the efficacy and safety of Xianling Gubao capsule in the treatment of osteoporosis (OP). Eight Chinese and English databases were retrieved (from establishment to February 2017), and clinical trials were screened according to the preset inclusion criteria and exclusion criteria. Then risk assessment tools were used for quality evaluation of the studies, and data extraction and analysis were conducted by using RevMan 5.3 software for Meta-analysis. A total of 1 895 articles were retrieved, and finally 54 studies were included...
August 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29139012/psychometric-performance-of-the-romanian-version-of-the-sarqol%C3%A2-a-health-related-quality-of-life-questionnaire-for-sarcopenia
#5
Gasparik Andrea Ildiko, Mihai Gabriela, Beaudart Charlotte, Bruyere Olivier, Pop Raluca-Monica, Reginster Jean-Yves, Pascanu Ionela Maria
Our study assessed the psychometric properties of the Romanian SarQoL(®) questionnaire. Normal distribution and high internal consistency were found. Sarcopenic subjects reported a reduced global quality of life compared to non-sarcopenics. The Romanian version of the SarQoL(®) questionnaire, conceptually and literally equivalent with the source instrument, is qualified in terms of psychometric properties. PURPOSE/INTRODUCTION: We have recently provided a translated and culturally tailored version of the first quality of life (QoL) questionnaire specific for sarcopenia, the SarQoL(®), in Romanian language...
November 14, 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/29136596/occurrence-of-organic-uv-filters-and-metabolites-in-lebranche-mullet-mugil-liza-from-brazil
#6
Daniel Molins-Delgado, Ramón Muñoz, Sylvia Nogueira, Mariana B Alonso, João Paulo Torres, Olaf Malm, Roberta Lourenço Ziolli, Rachel Ann Hauser-Davis, Ethel Eljarrat, Damià Barceló, M Silvia Díaz-Cruz
UV filters (UV-Fs) constitute a heterogeneous group of chemicals used as protection against the effects of UV radiation, widely used in all sort of goods and ubiquitous in the environment. The presence of these chemicals in fish is a matter of concern, because many UV-Fs display hormonal activity. In this study, muscle, gills, and liver from 11 Mugil liza individuals from the highly urbanized Guanabara Bay (Rio de Janeiro, Brazil) were analysed in order to detect eight UV-Fs and metabolites (4-dihydroxybenzophenone [BP1] (2-hydroxy-4-methoxybenzophenone [BP3], 4-methylbenzylidiene camphor [4MBC], ethylhexyl methoxycinnamate [EHMC], ethylhexyl dimethyl p-aminobenzoic acid [ODPABA], octocrylene [OC], 4-hydroxybenzophenone [4HB], and 4,4'-dihydroxybenzophenone [4DHB]) using liquid chromatography-tandem mass spectrometry (HPLC-MS/MS)...
November 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29136567/persistent-organic-pollutants-in-red-and-white-blooded-high-antarctic-notothenioid-fish-from-the-remote-weddell-sea
#7
Anneli Strobel, Peter Schmid, Patricia Burkhardt-Holm, Helmut Segner, Markus Zennegg
It has been suggested that High-Antarctic waters, despite their remoteness from human activities, are impacted by anthropogenic pollution, and that the local biota are accumulating the contaminants. At present, no data exist on persistent organic pollutant (POP) body burdens for notothenioid fish inhabiting the High-Antarctic Weddell Sea. We determined the pollutant load in white muscle tissue of red- and white-blooded notothenoids from the Weddell Sea (Trematomus loennbergii and Chionodraco hamatus, respectively), and compared them to our previous measurements of POPs in Low-Antarctic notothenioids...
November 7, 2017: Chemosphere
https://www.readbyqxmd.com/read/29136534/investigating-the-potential-impact-of-polycyclic-aromatic-hydrocarbons-pahs-and-polychlorinated-biphenyls-pcbs-on-gene-biomarker-expression-and-global-dna-methylation-in-loggerhead-sea-turtles-caretta-caretta-from-the-adriatic-sea
#8
Paolo Cocci, Gilberto Mosconi, Luca Bracchetti, John Mark Nalocca, Emanuela Frapiccini, Mauro Marini, Giovanni Caprioli, Gianni Sagratini, Francesco Alessandro Palermo
Polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) are priority contaminants that bioaccumulate through the food webs and affect the biology of a variety of resident and migratory species, including sea turtles. Few studies have evaluated toxicological biomarkers of exposure to PAHs and PCBs in these animals. The present paper reports the results of an initial field study to quantify the association between plasma concentrations of PAHs/PCBs and whole blood cell expression of gene biomarkers in juvenile loggerhead sea turtles (Caretta caretta) rescued along the Italian coasts of the northern and central areas of the Adriatic Sea...
November 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29135994/perioperative-risk-factors-for-postoperative-pneumonia-after-major-oral-cancer-surgery-a-retrospective-analysis-of-331-cases
#9
Jieyun Xu, Jing Hu, Pei Yu, Weiwang Wang, Xingxue Hu, Jinsong Hou, Silian Fang, Xiqiang Liu
OBJECTIVE: Postoperative pneumonia (POP) is common and results in prolonged hospital stays, higher costs, increased morbidity and mortality. However, data on the incidence and risk factors of POP after oral and maxillofacial surgery are rare. This study aims to identify perioperative risk factors for POP after major oral cancer (OC) surgery. METHODS: Perioperative data and patient records of 331 consecutive subjects were analyzed in the period of April 2014 to March 2016...
2017: PloS One
https://www.readbyqxmd.com/read/29128797/sotalol-enhances-the-anticonvulsant-action-of-valproate-and-diphenylhydantoin-in-the-mouse-maximal-electroshock-model
#10
Monika Banach, Monika Popławska, Kinga K Borowicz-Reutt
BACKGROUND: Sotalol as a drug blocking β-receptors and potassium KCNH2 channels may interact with different substances that affect seizures. Herein, we present interactions between sotalol and four conventional antiepileptic drugs: carbamazepine, valproate, phenytoin and phenobarbital. METHODS: Effects of sotalol and antiepileptics alone on seizures were determined in the electroconvulsive threshold test, while interactions between sotalol and antiepileptic drugs were estimated in the maximal electroshock test in mice...
May 11, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29128440/mccall-culdoplasty-during-total-laparoscopic-hysterectomy-a-pilot-randomized-controlled-trial
#11
Sara R Till, Kumari A Hobbs, Janelle K Moulder, John F Steege, Matthew T Siedhoff
STUDY OBJECTIVE: To assess the feasibility and safety of a McCall culdoplasty at time of total laparoscopic hysterectomy and to evaluate differences in total vaginal length, vaginal apex during valsalva, and sexual function 12 months after McCall culdoplasty compared to standard cuff closure. DESIGN: Pilot randomized controlled, single masked trial (Canadian Task Force classification I) SETTING: Academic tertiary care hospital PATIENTS: Women undergoing total laparoscopic hysterectomy for benign indications from June 2013 to December 2013...
November 8, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29127371/spatially-resolved-thermometry-of-resistive-memory-devices
#12
Eilam Yalon, Sanchit Deshmukh, Miguel Muñoz Rojo, Feifei Lian, Christopher M Neumann, Feng Xiong, Eric Pop
The operation of resistive and phase-change memory (RRAM and PCM) is controlled by highly localized self-heating effects, yet detailed studies of their temperature are rare due to challenges of nanoscale thermometry. Here we show that the combination of Raman thermometry and scanning thermal microscopy (SThM) can enable such measurements with high spatial resolution. We report temperature-dependent Raman spectra of HfO2, TiO2 and Ge2Sb2Te5 (GST) films, and demonstrate direct measurements of temperature profiles in lateral PCM devices...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29123574/sentinel-lymph-node-detection-in-colorectal-cancer-first-experience
#13
Sinisa Stojanoski, Nevena Manevska, Svetozar Antovic, Daniela Pop-Gjorcheva, Olivija Vaskova, Daniela Miladinova, Magdalena Mileva
BACKGROUND: Colorectal cancer (CRC) is the second commonest cancer in women, the third in men, being the fourth commonest cause of cancer death. The most important factor for prognosis and staging in CRC patients is the status of the regional lymph nodes (LN). AIM: To implement the method for sentinel lymph node (SLN) detection in CRC patients using radiocolloid, and test its detection rate, sensitivity, accuracy, negative predictive value and the possibility for upstaging...
October 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29122355/current-status-of-organochlorine-pesticides-ocps-and-polychlorinated-biphenyls-pcbs-exposure-among-mothers-and-their-babies-of-korea-check-cohort-study
#14
Sooran Choi, Hai-Joong Kim, Sunmi Kim, Gyuyeon Choi, Sungjoo Kim, Jeongim Park, Soon-Sup Shim, Inae Lee, Sungkyoon Kim, Hyo-Bang Moon, Kyungho Choi, Jeong Jae Lee, Su Young Kim
Despite the global ban, organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) have been a persistent and significant environmental health issue worldwide. Prenatal exposure to these persistent organic pollutants (POPs) has been identified as a major route of exposure among developing fetuses and newborn infants. Among Children's Health and Environmental Health of Korea (CHECK) cohort population, pregnant females (n=148) and their matching newborn infants (n=117) recruited from four cities of Korea in 2011 were investigated...
November 6, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29120362/detection-of-lard-in-cocoa-butter-its-fatty-acid-composition-triacylglycerol-profiles-and-thermal-characteristics
#15
Marliana Azir, Sahar Abbasiliasi, Tengku Azmi Tengku Ibrahim, Yanty Noorzianna Abdul Manaf, Awis Qurni Sazili, Shuhaimi Mustafa
The present study investigates the detection of lard in cocoa butter through changes in fatty acids composition, triacylglycerols profile, and thermal characteristics. Cocoa butter was mixed with 1% to 30% (v/v) of lard and analyzed using a gas chromatography flame ionization detector, high performance liquid chromatography, and differential scanning calorimetry. The results revealed that the mixing of lard in cocoa butter showed an increased amount of oleic acid in the cocoa butter while there was a decrease in the amount of palmitic acid and stearic acids...
November 9, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29120176/persistent-organic-pollutants-in-the-east-antarctic-atmosphere-inter-annual-observations-from-2010-2015-using-high-flow-through-passive-sampling
#16
Susan Bengtson Nash, Sean Wild, Darryl W Hawker, Roger Cropp, Hayley Hung, Frank Wania, Hang Xiao, Pernilla Bohlin Nizzetto, Anders Bignert, Sara Broomhall
In the first multi-year sampling effort for POPs in the eastern Antarctic atmosphere, 32 PCBs and 38 organochlorine pesticides were targeted in air collected with a high-flow-through passive sampler. Agricultural chemicals were found to dominate atmospheric profiles, in particular HCB and endosulfan-I, with average concentrations of 12,600 and 550 fg/m3, respectively. HCB showed higher concentrations in the austral summer, indicative of local, temperature-dependent volatilisation, whilst endosulfan-I appeared to show fresh, late-austral-summer input followed by temporally decreasing levels throughout the year...
November 9, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29119783/dense-aligned-copper-nanowire-composites-as-high-performance-thermal-interface-materials
#17
Michael Thomas Barako, Scott G Isaacson, Feifei Lian, Eric Pop, Reinhold H Dauskardt, Kenneth E Goodson, Jesse Tice
Thermal interface materials (TIMs) are essential for managing heat in modern electronics, and nanocomposite TIMs can offer critical improvements. Here we demonstrate thermally conductive, mechanically-compliant TIMs based on dense, vertically-aligned copper nanowires (CuNWs) embedded into polymer matrices. We evaluate the thermal and mechanical characteristics of 20-25% dense CuNW arrays with and without polydimethylsiloxane (PDMS) infiltration. The thermal resistance achieved is below 5 mm2 K W-1, over an order of magnitude lower than commercial heat sink compounds...
November 9, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29119339/the-prostate-cancer-screening-clinic-in-the-bahamas-a-model-for-low-and-middle-income-countries
#18
Robin Roberts, Corydon Mitchell, Ana Lourdes Tancawan, Mandi Pedican, Glenn Wayne Jones
PURPOSE: Grand Bahama (pop. 51,000) is an island within the Bahamas archipelago. A local chapter of International Us TOO Prostate Cancer Support Group (UTGB) has led an annual community-based prostate cancer screening clinic in Grand Bahama each September since 2009. Features of this initiative, characteristics of attendees, and a description of found cancers were summarized to determine the clinic's value and to guide improvements. METHOD: We analyzed the established clinic from 2012 to 2015, wherein UTGB attracted corporate funding, volunteers managed clinics, and health professionals provided healthcare services...
November 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/29119201/-implants-for-genital-prolapse-contra-mesh-surgery
#19
REVIEW
C Hampel
Alloplastic transvaginal meshes have become very popular in the surgery of pelvic organ prolapse (POP) as did alloplastic suburethral slings in female stress incontinence surgery, but without adequate supporting data. The simplicity of the mesh procedure facilitates its propagation with acceptance of higher revision and complication rates. Since attending physicians do more and more prolapse surgeries without practicing or teaching alternative techniques, expertise in these alternatives, which might be very useful in cases of recurrence, persistence or complications, is permanently lost...
November 8, 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/29118382/quantifying-the-potential-for-bursting-bubbles-to-damage-suspended-cells
#20
Peter L L Walls, Oliver McRae, Venkatesh Natarajan, Chris Johnson, Chris Antoniou, James C Bird
Bubbles that rise to the surface of a cell suspension can damage cells when they pop. This phenomenon is particularly problematic in the biotechnology industry, as production scale bioreactors require continuous injection of oxygen bubbles to maintain cell growth. Previous studies have linked cell damage to high energy dissipation rates (EDR) and have predicted that for small bubbles the EDR could exceed values that would kill many cells used in bioreactors, including Chinese Hamster Ovary (CHO) cells. However, it's unclear how many cells would be damaged by a particular bursting bubble, or more precisely how much volume around the bubble experiences these large energy dissipation rates...
November 8, 2017: Scientific Reports
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