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https://www.readbyqxmd.com/read/28340462/assessment-of-arsenic-and-fluorine-in-surface-soil-to-determine-environmental-and-health-risk-factors-in-the-comarca-lagunera-mexico
#1
Yareli A Sariñana-Ruiz, Jorge Vazquez-Arenas, Fabiola S Sosa-Rodríguez, Israel Labastida, Ma Aurora Armienta, Antonio Aragón-Piña, Miguel A Escobedo-Bretado, Laura S González-Valdez, Patricia Ponce-Peña, Hugo Ramírez-Aldaba, René H Lara
Total, bioaccessible and mobile concentrations of arsenic and fluorine are determined in polluted surface soil within the Comarca Lagunera region using standardized protocols to obtain a full description of the environmental behavior for these elements. The composition of mineral phases associated with them is evaluated with microscopic and spectroscopic techniques. Mineralogical characterizations indicate that ultra-fine particles (<1-5 μm) including mimetite-vanadite (Pb5(AsO4)3Cl, Pb5(AsO4, VO4)3Cl)-like, lead arseniate (Pb3(AsO4)2)-like and complex arsenic-bearing compounds are main arsenic-bearing phases, while fluorite (CaF2) is the only fluorine-bearing phase...
March 10, 2017: Chemosphere
https://www.readbyqxmd.com/read/28338986/genome-wide-estimates-of-transposable-element-insertion-and-deletion-rates-in-drosophila-melanogaster
#2
Jeffrey R Adrion, Michael J Song, Daniel R Schrider, Matthew W Hahn, Sarah Schaack
Knowing the rate at which transposable elements (TEs) insert and delete is critical for understanding their role in genome evolution. We estimated spontaneous rates of insertion and deletion for all known, active TE superfamilies present in a set of Drosophila melanogaster mutation-accumulation (MA) lines using whole genome sequence data. Our results demonstrate that TE insertions far outpace TE deletions in D. melanogaster. We found a significant effect of background genotype on TE activity, with higher rates of insertions in one MA line...
March 9, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28338091/intermediate-filament-reorganization-dynamically-influences-cancer-cell-alignment-and-migration
#3
Andrew W Holle, Melih Kalafat, Adria Sales Ramos, Thomas Seufferlein, Ralf Kemkemer, Joachim P Spatz
The interactions between a cancer cell and its extracellular matrix (ECM) have been the focus of an increasing amount of investigation. The role of the intermediate filament keratin in cancer has also been coming into focus of late, but more research is needed to understand how this piece fits in the puzzle of cytoskeleton-mediated invasion and metastasis. In Panc-1 invasive pancreatic cancer cells, keratin phosphorylation in conjunction with actin inhibition was found to be sufficient to reduce cell area below either treatment alone...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28338061/heteroleptic-copper-i-complexes-of-scorpionate-bis-pyrazolyl-carboxylate-ligand-with-auxiliary-phosphine-as-potential-anticancer-agents-an-insight-into-cytotoxic-mode
#4
Rais Ahmad Khan, Mohammad Usman, Rajakumar Dhivya, Perumalsamy Balaji, Ali Alsalme, Hamad AlLohedan, Farukh Arjmand, Khalid AlFarhan, Mohammad Abdulkader Akbarsha, Fabio Marchetti, Claudio Pettinari, Sartaj Tabassum
New copper(I) complexes [CuCl(PPh3)(L)] (1: L = LA = 4-carboxyphenyl)bis(3,5-dimethylpyrazolyl)methane; (2: L = LB = 3-carboxyphenyl)bis(3,5-dimethylpyrazolyl)methane) were prepared and characterised by elemental analysis and various spectroscopic techniques such as FT-IR, NMR, UV-Vis, and ESI-MS. The molecular structures of complexes 1 and 2 were analyzed by theoretical B3LYP/DFT method. Furthermore, in vitro DNA binding studies were carried out to check the ability of complexes 1 and 2 to interact with native calf thymus DNA (CT-DNA) using absorption titration, fluorescence quenching and circular dichroism, which is indicative of more avid binding of the complex 1...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336221/the-use-of-contact-lens-telescopic-systems-in-low-vision-rehabilitation
#5
REVIEW
Stephen J Vincent
Refracting telescopes are afocal compound optical systems consisting of two lenses that produce an apparent magnification of the retinal image. They are routinely used in visual rehabilitation in the form of monocular or binocular hand held low vision aids, and head or spectacle-mounted devices to improve distance visual acuity, and with slight modifications, to enhance acuity for near and intermediate tasks. Since the advent of ground glass haptic lenses in the 1930's, contact lenses have been employed as a useful refracting element of telescopic systems; primarily as a mobile ocular lens (the eyepiece), that moves with the eye...
March 20, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28335540/a-vehicle-steering-recognition-system-based-on-low-cost-smartphone-sensors
#6
Xinhua Liu, Huafeng Mei, Huachang Lu, Hailan Kuang, Xiaolin Ma
Recognizing how a vehicle is steered and then alerting drivers in real time is of utmost importance to the vehicle and driver's safety, since fatal accidents are often caused by dangerous vehicle maneuvers, such as rapid turns, fast lane-changes, etc. Existing solutions using video or in-vehicle sensors have been employed to identify dangerous vehicle maneuvers, but these methods are subject to the effects of the environmental elements or the hardware is very costly. In the mobile computing era, smartphones have become key tools to develop innovative mobile context-aware systems...
March 20, 2017: Sensors
https://www.readbyqxmd.com/read/28335282/inverter-circuits-using-zno-nanoparticle-based-thin-film-transistors-for-flexible-electronic-applications
#7
Fábio F Vidor, Thorsten Meyers, Ulrich Hilleringmann
Innovative systems exploring the flexibility and the transparency of modern semiconducting materials are being widely researched by the scientific community and by several companies. For a low-cost production and large surface area applications, thin-film transistors (TFTs) are the key elements driving the system currents. In order to maintain a cost efficient integration process, solution based materials are used as they show an outstanding tradeoff between cost and system complexity. In this paper, we discuss the integration process of ZnO nanoparticle TFTs using a high-k resin as gate dielectric...
August 23, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28334919/antibiotics-trigger-initiation-of-sccmec-transfer-by-inducing-sos-responses
#8
Pilong Liu, Zhaowei Wu, Huping Xue, Xin Zhao
The rise of antimicrobial resistance limits therapeutic options for infections by methicillin-resistant staphylococci. The staphylococcal cassette chromosome mec (SCCmec) is a mobile genetic element as the only carrier of the methicillin-resistance determinants, the mecA or mecC gene. The use of antibiotics increases the spread of antibiotic resistance, but the mechanism by which antibiotics promote horizontal dissemination of SCCmec is largely unknown. In this study, we demonstrate that many antibiotics, including β-lactams, can induce the expression of ccrC1 and SCCmec excision from the bacterial chromosome...
March 3, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28334706/repetitive-dna-a-versatile-tool-for-karyotyping-in-festuca-pratensis-huds
#9
Anna Křivánková, David Kopecký, Štěpán Stočes, Jaroslav Doležel, Eva Hřibová
FISH is a useful method to identify individual chromosomes in a karyotype and to discover their structural changes accompanying genome evolution and speciation. DNA probes for FISH should be chromosome specific and/or exhibit specific patterns of distribution along each chromosome. Such probes are not available in many plants including meadow fescue (Festuca pratensis Huds.), an important forage grass species. In the present study, various DNA repeats identified in Illumina shotgun sequences specific to chromosome 4F of F...
March 24, 2017: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/28332129/development-of-an-enhanced-recovery-after-surgery-eras-protocol-in-laparoscopic-colorectal-surgery-results-of-the-first-120-consecutive-cases-from-a-university-hospital
#10
Antonio Brescia, Federico Tomassini, Giammauro Berardi, Carola Sebastiani, Massimo Pezzatini, Anna Dall'Oglio, Giovanni Guglielmo Laracca, Fabrizio Apponi, Marcello Gasparrini
The ERAS(®) represents a dynamic culmination of upon perioperative care elements, successfully applied to different surgical specialties with shorter hospital stay and lower morbidity rates. The aim of this study is to describe the introduction of the ERAS protocol in colorectal surgery in our hospital analysing our first series. Between September 2014 and June 2016, 120 patients suffering from colorectal diseases were included in the study. Laparoscopic approach was used in all patients if not contraindicated...
March 22, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28331173/laparoscopic-gastrectomy-with-enhanced-recovery-after-surgery-protocol-single-center-experience
#11
Magdalena Pisarska, Michał Pędziwiatr, Piotr Major, Michał Kisielewski, Marcin Migaczewski, Mateusz Rubinkiewicz, Piotr Budzyński, Krzysztof Przęczek, Anna Zub-Pokrowiecka, Andrzej Budzyński
BACKGROUND Surgery remains the mainstay of gastric cancer treatment. It is, however, associated with a relatively high risk of perioperative complications. The use of laparoscopy and the Enhanced Recovery After Surgery (ERAS) protocol allows clinicians to limit surgically induced trauma, thus improving recovery and reducing the number of complications. The aim of the study is to present clinical outcomes of patients with gastric cancer undergoing laparoscopic gastrectomy combined with the ERAS protocol. MATERIAL AND METHODS Fifty-three (21 female/32 male) patients who underwent elective laparoscopic total gastrectomy due to cancer were prospectively analyzed...
March 23, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28331090/hili-inhibits-hiv-replication-in-activated-t-cells
#12
B Matija Peterlin, Pingyang Liu, Xiaoyun Wang, Daniele Cary, Wei Shao, Marie Leoz, Tian Hong, Tao Pan, Koh Fujinaga
Piwil proteins restrict the replication of mobile genetic elements in the germline. They are also expressed in many transformed cell lines. In this report, we discovered that the human piwil 2 (hili) can also inhibit HIV replication, especially in activated CD4+ T cells that are the preferred target cells for this virus in the infected host. Although resting cells did not express hili, it was rapidly induced following T cell activation. In these cells and transformed cell lines, depletion of hili increased levels of viral proteins and new viral particles...
March 22, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28327913/the-use-of-oxford-nanopore-native-barcoding-for-complete-genome-assembly
#13
Sion C Bayliss, Vicky L Hunt, Maho Yokoyama, Harry A Thorpe, Edward J Feil
Background: The Oxford Nanopore Technologies MinION(TM) is a mobile DNA sequencer that can produce long read sequences with a short turn-around time. Here we report the first demonstration of single contig genome assembly using Oxford Nanopore native barcoding when applied to a multiplexed library of 12 samples and combined with existing Illumina short-read data. This paves the way for the closure of multiple bacterial genomes from a single MinION(TM) sequencing run, given the availability of existing short-read data...
February 24, 2017: GigaScience
https://www.readbyqxmd.com/read/28326196/iact-cel-a-feasibility-trial-of-a-face-to-face-and-internet-based-acceptance-and-commitment-therapy-intervention-for-chronic-pain-in-singapore
#14
Su-Yin Yang, Rona Moss-Morris, Lance M McCracken
Psychological interventions are increasingly utilising online or mobile phone based platforms to deliver treatment, including that for people with chronic pain. The aims of this study were to develop an adapted form of Acceptance and Commitment Therapy (ACT) for chronic pain in Singapore and to test the feasibility of elements of this treatment delivered via the internet and email. Methods. Thirty-three participants recruited from a tertiary pain management clinic and via the clinic website participated in this program over a period of five weeks with a 3-month follow-up...
2017: Pain Research and Treatment
https://www.readbyqxmd.com/read/28325711/investigating-the-perceptions-of-care-coordinators-on-using-behavior-theory-based-mobile-health-technology-with-medicaid-populations-a-grounded-theory-study
#15
Brittany Erika Sigler
BACKGROUND: Medicaid populations are less engaged in their health care than the rest of the population, translating to worse health outcomes and increased health care costs. Since theory-based mobile health (mHealth) interventions have been shown to increase patient engagement, mobile phones may be an optimal strategy to reach this population. With increased development of theory-based mHealth technology, these interventions must now be evaluated with these medically underserved populations in a real-world setting...
March 21, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28324178/complete-genome-sequence-analysis-of-a-novel-staphylococcus-phage-stap1-and-proposal-of-a-new-species-in-the-genus-silviavirus
#16
Amal Senevirathne, Kuntal Ghosh, Eunjung Roh, Kwang-Pyo Kim
Bacteriophage StAP1 was isolated from a soil sample infecting Staphylococcus aureus and S. xylosus. Its genome was found to be 135,502 base pairs (bp) long with 30.00 mol% G+C content and 192 open reading frames. While no tRNA encoding genes were identified, 7 mobile elements were found to interrupt five StAP1 open reading frames. Comparative genomic and proteomic analysis consistently supports the establishment of a new species in the genus Silviavirus.
March 21, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28322825/dissection-of-mechanoresponse-elements-in-promoter-sites-of-the-mechanoresponsive-cyr61-gene
#17
Lothar Seefried, Sigrid Mueller-Deubert, Melanie Krug, Almoatazbellah Youssef, Norbert Schuetze, Anita Ignatius, Franz Jakob, Regina Ebert
Mechanotransduction is important for mesenchymal regeneration and differentiation. Exaggerated high or very low impact yields pathological outcome resulting in fracture or tissue atrophy. Pathological strain in animal models was described but tools to dissect the respective stimuli and downstream pathways are limited. We expand the analytical tools to describe DNA strain response elements in a reporter gene approach. Deletion constructs of the human cysteine-rich protein 61 (CYR61) promoter were cloned into luciferase vectors and stably transfected into human telomerase-immortalized mesenchymal stem cells (hMSC-TERT)...
March 16, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28320331/a-multi-component-cognitive-behavioural-intervention-for-the-treatment-of-fear-of-falling-after-hip-fracture-fit-hip-protocol-of-a-randomised-controlled-trial
#18
Maaike N Scheffers-Barnhoorn, Jolanda C M van Haastregt, Jos M G A Schols, Gertrudis I J M Kempen, Romke van Balen, Jan H M Visschedijk, Wilbert B van den Hout, Eve M Dumas, Wilco P Achterberg, Monica van Eijk
BACKGROUND: Hip fracture is a common injury in the geriatric population. Despite surgical repair and subsequent rehabilitation programmes, functional recovery is often limited, particularly in individuals with multi-morbidity. This leads to high care dependency and subsequent use of healthcare services. Fear of falling has a negative influence on recovery after hip fracture, due to avoidance of activity and subsequent restriction in mobility. Although fear of falling is highly prevalent after hip fracture, no structured treatment programme is currently available...
March 20, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28320210/mobility-scooter-driving-ability-in-visually-impaired-individuals
#19
Christina Cordes, Joost Heutink, Karel A Brookhuis, Wiebo H Brouwer, Bart J M Melis-Dankers
PURPOSE: To investigate how well visually impaired individuals can learn to use mobility scooters and which parts of the driving task deserve special attention. MATERIALS AND METHODS: A mobility scooter driving skill test was developed to compare driving skills (e.g. reverse driving, turning) between 48 visually impaired (very low visual acuity = 14, low visual acuity = 10, peripheral field defects = 11, multiple visual impairments = 13) and 37 normal-sighted controls without any prior experience with mobility scooters...
March 21, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28319742/biochar-provides-a-safe-and-value-added-solution-for-hyperaccumulating-plant-disposal-a-case-study-of-phytolacca-acinosa-roxb-phytolaccaceae
#20
Shengsen Wang, Bin Gao, Yuncong Li, Yong Sik Ok, Chaofeng Shen, Shengguo Xue
In this work, an innovative approach using biochar technology for hyperaccumulator disposal was developed and evaluated. The heavy metal enriched P. acinosa biomass (PBM) was pyrolyzed to produce biochar (PBC). Both PBM and PBC were characterized with X-ray diffraction (XRD) for crystal phases, scanning electron microscopy (SEM) for surface topography, and analyzed for elemental composition and mobility. The results revealed that whewellite, a dominant crystal form in biomass, was decomposed to calcite after pyrolysis...
February 27, 2017: Chemosphere
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