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https://www.readbyqxmd.com/read/28545245/multimodal-bio-inspired-tactile-sensing-module-for-surface-characterization
#1
Thiago Eustaquio Alves de Oliveira, Ana-Maria Cretu, Emil M Petriu
Robots are expected to recognize the properties of objects in order to handle them safely and efficiently in a variety of applications, such as health and elder care, manufacturing, or high-risk environments. This paper explores the issue of surface characterization by monitoring the signals acquired by a novel bio-inspired tactile probe in contact with ridged surfaces. The tactile module comprises a nine Degree of Freedom Microelectromechanical Magnetic, Angular Rate, and Gravity system (9-DOF MEMS MARG) and a deep MEMS pressure sensor embedded in a compliant structure that mimics the function and the organization of mechanoreceptors in human skin as well as the hardness of the human skin...
May 23, 2017: Sensors
https://www.readbyqxmd.com/read/28545219/new-species-for-the-biomitigation-of-a-super-intensive-marine-fish-farm-effluent-combined-use-of-polychaete-assisted-sand-filters-and-halophyte-aquaponics
#2
Bruna Marques, Ricardo Calado, Ana I Lillebø
The main objective of this study was to test an innovative biomitigation approach, where polychaete-assisted (Hediste diversicolor) sand filters were combined with the production of Halimione portulacoides in aquaponics, to remediate an organic-rich effluent generated by a super intensive fish farm operating a land-based RAS (Recirculating aquaculture system). The set up included four different experimental combinations that were periodically monitored for 5months. After this period, polychaete-assisted sand filters reduced in 70% the percentage of OM and the average densities increased from ≈400ind...
May 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28545217/a-miniature-bird-borne-passive-air-sampler-for-monitoring-halogenated-flame-retardants
#3
Manon Sorais, Ali Rezaei, Joseph O Okeme, Miriam L Diamond, Ricardo Izquierdo, Jean-François Giroux, Jonathan Verreault
Birds have been used intensively as biomonitors of halogenated flame retardants (HFRs), and several studies have reported elevated tissue concentrations and inter-individual variability for these contaminants. While diet is known to be an important exposure pathway for HFRs in birds, it has been suggested that exposure through air may represent an underestimated source of HFRs for certain species. However, a method was not available for measuring the atmospheric exposure of individual birds to HFRs or other semi-volatile contaminants...
May 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28545212/determination-of-phenolic-organohalogens-in-human-serum-from-a-belgian-population-and-assessment-of-parameters-affecting-the-human-contamination
#4
Patrice Dufour, Catherine Pirard, Corinne Charlier
Many in vitro or in vivo studies highlighted the potential deleterious effects of phenolic organohalogenated compounds (POHs) on the health, particularly on the thyroid system homeostasis, however few large scale human epidemiological studies have been carried out, especially in Europe. Further studies monitoring the human contamination by POHs, the sources of exposure and the influence of these compounds on thyroid health are still needed. Therefore we determined the concentrations of 16 POHs (pentachlorophenol (PCP), tetrabromobisphenol A (TBBPA), 4 bromophenols (BPs), 3 hydroxy-polybromodiphenylethers (OH-PBDEs) and 7 hydroxy-polychlorobiphenyls (OH-PCBs)) in serum from 274 people aged from 18 to 76years old living in Liege (Belgium) and the surrounding area...
May 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28545204/ecomorphological-divergence-drives-differential-mercury-bioaccumulation-in-polymorphic-european-whitefish-coregonus-lavaretus-populations-of-subarctic-lakes
#5
Kimmo K Kahilainen, Stephen M Thomas, Elina K M Nystedt, Ossi Keva, Tommi Malinen, Brian Hayden
Resource polymorphism, whereby ancestral trophic generalists undergo divergence into multiple specialist morphs, is common in salmonid fish populations inhabiting subarctic lakes. However, the extent to which such resource specialization into the three principal lake habitats (littoral, profundal, and pelagic) affects patterns of contaminant bioaccumulation remains largely unexplored. We assessed total mercury concentrations (THg) of European whitefish (Coregonus lavaretus (L.)) and their invertebrate prey in relation to potential explanatory variables across 6 subarctic lakes, of which three are inhabited by polymorphic (comprised of four morphs) and three by monomorphic populations...
May 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28545199/cyberknife-radioablation-of-prostate-cancer-%C3%A2-preliminary-results-for-400-patients
#6
Leszek Miszczyk, Agnieszka Namysł Kaletka, Aleksandra Napieralska, Grzegorz Woźniak, Małgorzata Stąpór Fudzińska, Grzegorz Głowacki, Andrzej Tukiendorf
Objectives: To evaluate the tolerance and effectiveness of stereotactic ablative radiotherapy (SABR) applied in the treatment of low and intermediate risk (LR & IR) prostate cancer patients (PCP) and provide an evaluation of the level of risk group impact on treatment results. In addition, androgen deprivation therapy (ADT) usage and prostatic specific antigen (PSA) decline after SABR were assessed. Material and Methods: A total of 400 PCP (213 LR and 187 IR, including T2c) were irradiated with a CyberKnife using fd 7...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28545193/synthesis-characterization-and-cytotoxic-evaluation-of-graphene-oxide-nanosheets-in-vitro-liver-cancer-model
#7
Samah A Loutfy, Taher A Salaheldin, Marwa A Ramadan, Khaled Yehia Farroh, Zeinab F Abdallah, Tareq Youssef Abd Eloahed
Background: Graphene nanosheets have a broad spectrum of biomedical applications. Hepatocellular cancer (HCC) is a major health problem in the Egyptian population. Currently, treatment strategies are invasive and have several adverse side effects. Thus, other approaches are required for managing this aggressive type of cancer. Our objective here was to prepare and characterize graphene oxide nanosheets and evaluate cytotoxic effect at the molecular level in an in vitro human liver cancer cell model (HepG2)...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28545130/responses-of-absolute-and-specific-enzyme-activity-to-consecutive-application-of-composted-sewage-sludge-in-a-fluventic-ustochrept
#8
Xiao Liu, Kangli Guo, Lin Huang, Zhengyu Ji, Huimin Jiang, Hu Li, Jianfeng Zhang
Composted sewage sludge (CS) is considered a rich source of soil nutrients and significantly affects the physical, chemical, and biological characteristics of soil, but its effect on specific enzyme activity in soil is disregarded. The present experiment examined the absolute and specific enzyme activity of the enzymes involved in carbon, nitrogen, and phosphorus cycles, the diversity of soil microbial functions, and soil community composition in a Fluventic Ustochrept under a maize-wheat rotation system in North China during 2012-2015...
2017: PloS One
https://www.readbyqxmd.com/read/28545111/northern-range-expansion-of-the-asian-tiger-mosquito-aedes-albopictus-analysis-of-mosquito-data-from-connecticut-usa
#9
Philip M Armstrong, Theodore G Andreadis, John J Shepard, Michael C Thomas
BACKGROUND: The Asian tiger mosquito (Aedes albopictus) is an invasive species and important arbovirus vector that was introduced into the U.S. in the 1980's where it continues to expand its range. Winter temperature is an important constraint to its northward expansion, with potential range limits located between the 0° and -5°C mean cold month isotherm. Connecticut is located within this climatic zone and therefore, Ae. albopictus was monitored statewide to assess its northern range expansion and to delineate where populations can stably persist...
May 18, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28545110/differences-in-perceived-causes-of-childhood-obesity-between-migrant-and-local-communities-in-china-a-qualitative-study
#10
Bai Li, Rong Lin, Wei Liu, Jingyi Chen, Weijia Liu, KarKeung Cheng, Miranda Pallan, Peymane Adab, Laura Jones
In developing countries, obesity traditionally affectsmore affluent children, butis spreading to a wider social group. Understanding the perceivedcontributors can provide valuable insights to plan preventive interventions. We exploreddifferences in the perceived causes of childhood obesity between local and migrant communities in a major Chinese city. We conducted 20 focus groups (137 parents, grandparents, school teachers) and 11semi-structured interviews with school Principals from migrant and local communities in Guangzhou...
2017: PloS One
https://www.readbyqxmd.com/read/28545099/fine-particles-in-homes-of-predominantly-low-income-families-with-children-and-smokers-key-physical-and-behavioral-determinants-to-inform-indoor-air-quality-interventions
#11
Neil E Klepeis, John Bellettiere, Suzanne C Hughes, Benjamin Nguyen, Vincent Berardi, Sandy Liles, Saori Obayashi, C Richard Hofstetter, Elaine Blumberg, Melbourne F Hovell
Children are at risk for adverse health outcomes from occupant-controllable indoor airborne contaminants in their homes. Data are needed to design residential interventions for reducing low-income children's pollutant exposure. Using customized air quality monitors, we continuously measured fine particle counts (0.5 to 2.5 microns) over a week in living areas of predominantly low-income households in San Diego, California, with at least one child (under age 14) and at least one cigarette smoker. We performed retrospective interviews on home characteristics, and particle source and ventilation activities occurring during the week of monitoring...
2017: PloS One
https://www.readbyqxmd.com/read/28545093/ending-preventable-maternal-and-child-deaths-in-western-nigeria-do-women-utilize-the-life-lines
#12
Titilayo Olaitan, Ifeoma P Okafor, Adebayo T Onajole, Olayinka A Abosede
INTRODUCTION: Nigeria which constitutes just one percent of the world population, accounts for 13% of the world maternal and under-five mortality. Utilization of health care services has been an important determinant of maternal and child outcomes. The vast majority of maternal and child deaths could be prevented if women utilize the available life lines. The study objective was to determine utilization of maternal and child health care services among women of child bearing age in Western Nigeria...
2017: PloS One
https://www.readbyqxmd.com/read/28545043/a-multiplex-taqman-qpcr-assay-for-sensitive-and-rapid-detection-of-phytoplasmas-infecting-rubus-species
#13
Holger Linck, Erika Krüger, Annette Reineke
Rubus stunt is an economically important disease in the production of raspberries, blackberries, and loganberries. A fast, sensitive, and reliable diagnosis of phytoplasmas, the causal agent of the disease, is of prime importance to stop its spread by vegetative propagation and by insect vectors. Therefore, multiplex qPCR assays using TaqMan probes with different kinds of fluorophores in one reaction were developed, allowing the detection of phytoplasmas in general as well as a more specific detection of phytoplasmas belonging to group 16SrV and host DNA (either plant or insect)...
2017: PloS One
https://www.readbyqxmd.com/read/28544933/cardiotoxic-effect-of-levofloxacin-and-ciprofloxacin-in-rats-with-without-acute-myocardial-infarction-impact-on-cardiac-rhythm-and-cardiac-expression-of-kv4-3-kv1-2-and-nav1-5-channels
#14
Ahmed M Abdelrady, Sawsan A Zaitone, Noha E Farag, Manal S Fawzy, Yasser M Moustafa
Prolongation of QT interval is possible with fluoroquinolones, yet the underlying contributing factors have not been elucidated. Two widely used fluoroquinolone drugs were at the focus of this study in rats with/without acute myocardial dysfunction (AMI) induced by isoproterenol. The effects of levofloxacin and ciprofloxacin on the cardiac mRNA expression of rat Kv4.3, Kv1.2 and Nav1.5 mRNAs were determined. Administration of the two antibiotics produced dose-dependent changes in ECG parameters that were more prominent in rats with AMI than healthy rats; this was accompanied by elevations in serum lactate dehydrogenase and creatine kinase-MB...
May 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28544899/identifying-risk-sources-of-air-contamination-by-polycyclic-aromatic-hydrocarbons
#15
Jiri Huzlik, Frantisek Bozek, Adam Pawelczyk, Roman Licbinsky, Magdalena Naplavova, Michael Pondelicek
This article is directed to determining concentrations of polycyclic aromatic hydrocarbons (PAHs), which are sorbed to solid particles in the air. Pollution sources were identified on the basis of the ratio of benzo[ghi]perylene (BghiPe) to benzo[a]pyrene (BaP). Because various important information is lost by determining the simple ratio of concentrations, least squares linear regression (classic ordinary least squares regression), reduced major axis, orthogonal regression, and Kendall-Theil robust diagnostics were utilized for identification...
May 11, 2017: Chemosphere
https://www.readbyqxmd.com/read/28544893/agreement-of-invasive-and-non-invasive-blood-pressure-measurements-in-anaesthetised-pigs-using-the-surgivet-v9203
#16
Philomena P Tuohy, Anthea L Raisis, Eleanor A Drynan
The automated oscillometric method is a common method for measuring blood pressure non-invasively and is broadly and confidently used in the veterinary setting. Twenty-one pigs undergoing anesthesia for exploratory laparotomy were enrolled in a study to evaluate the performance of the Surgivet V9203 non-invasive blood pressure (NIBP) monitor. The aim was to compare measurements of arterial blood pressure obtained simultaneously using the Surgivet V9203 oscillometric system and an intra-arterial catheter-transducer system, both at the level of the metatarsus...
May 19, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28544885/overcoming-interference-with-the-detection-of-a-stable-isotopically-labeled-microtracer-in-the-evaluation-of-beclabuvir-absolute-bioavailability-using-a-concomitant-microtracer-approach
#17
Hao Jiang, Craig Titsch, Jianing Zeng, Barry Jones, Philip Joyce, Yash Gandhi, Wesley Turley, Richard Burrell, Anne F Aubry, Mark E Arnold
The oral absolute bioavailability of beclabuvir in healthy subjects was determined using a microdose (100μg) of the stable isotopically labeled tracer via intravenous (IV) infusion started after oral dosing of beclabuvir (150mg). To simultaneously analyze the concentrations of the IV microtracer ([(13)C6]beclabuvir) and beclabuvir in plasma samples, a liquid chromatography-triple quadrupole mass spectrometry (LC-MS/MS) method was initially developed. Surprisingly beclabuvir significantly interfered with the IV microtracer detection when using the selected reaction monitoring (SRM) in the assay...
May 17, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28544872/analysis-of-the-igf-system-in-milk-from-farm-animals-occurrence-regulation-and-biomarker-potential
#18
REVIEW
Zianka Meyer, Christine Höflich, Elisa Wirthgen, Sven Olm, Harald M Hammon, Andreas Hoeflich
IGFs and IGF-binding proteins (IGFBPs) are abundantly present in milk and in dairy products. Compared to the IGFs, the IGFBP have received less attention in milk, although truncated IGFBPs and IGFBP-glycosylation have been described in milk. Thereby, complex control of local IGF-effects can be assumed on the levels of IGFBPs, proteases, and protease inhibitors. The present review collects the current knowledge both on presence and regulation of IGFs and IGFBPs in milk particularly from dairy animal species...
May 12, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/28544816/analytical-characterization-of-three-cathinone-derivatives-4-mpd-4%C3%A2-f-php-and-bk-epdp-purchased-as-bulk-powder-from-online-vendors
#19
Orapan Apirakkan, Anca Frinculescu, Trevor Shine, Mark C Parkin, Agostino Cilibrizzi, Nunzianda Frascione, Vincenzo Abbate
Novel emerging drugs of abuse, also referred as new psychoactive substances (NPS), constitute an ever-changing mixture of chemical compounds designed to circumvent legislative controls by means of chemical modifications of previously banned recreational drugs. One of such class, synthetic cathinones, namely β-keto derivatives of amphetamines, has been largely abused over the past decade. A number of new synthetic cathinones are detected each year, either in bulk powders/crystals or in biological matrices. It is therefore important to continuously monitor the supply of new synthetic derivatives and promptly report them...
May 23, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28544804/longitudinal-patterns-in-objective-physical-activity-and-sedentary-time-in-a-multi-ethnic-sample-of-children-from-the-uk
#20
L Smith, D Aggio, M Hamer
BACKGROUND: Children of South Asian decent born in the UK display lower levels of physical activity than British Caucasians although no longitudinal data are available. OBJECTIVES: We aimed to investigate change in activity levels over 1 year in a diverse ethnic sample of children residing in London, UK. METHODS: Children were categorized into ethnic groups (Caucasian/mixed, Black, South Asian). At baseline and 1-year follow-up, children's objective physical activity was monitored (Actigraph accelerometer) for at least 1 day...
May 22, 2017: Pediatric Obesity
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