keyword
MENU ▼
Read by QxMD icon Read
search

Baf

keyword
https://www.readbyqxmd.com/read/28801106/comparison-of-caged-and-native-blue-mussels-mytilus-edulis-spp-for-environmental-monitoring-of-pah-pcb-and-trace-metals
#1
Merete Schøyen, Ian J Allan, Anders Ruus, Jarle Håvardstun, Dag Ø Hjermann, Jonny Beyer
Contaminant bioaccumulation was studied in blue mussels (Mytilus edulis spp.) using the harbor waters of Kristiansand (Norway) as a case study. A suite of chemical contaminants (trace metals, PAHs and PCBs) was analyzed in caged and native mussels as well as in passive samplers (Diffusive Gradients in Thin films (DGT)-devices and silicone rubbers) placed alongside the mussels for estimation of contaminant concentrations in water and uptake rates and bioaccumulation factors (BAFs) in mussels during a six-months deployment period...
August 2, 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/28783015/application-of-novel-modified-biological-aerated-filter-mbaf-as-a-promising-post-treatment-for-water-reuse-modification-in-configuration-and-backwashing-process
#2
Ali Nikoonahad, Mohammad Taghi Ghaneian, Amir Hossein Mahvi, Mohammad Hassan Ehrampoush, Ali Asghar Ebrahimi, Mohammad Hassan Lotfi, Sima Salamehnejad
Biological Aerated Filter (BAF) reactors due to their plentiful biomass, high shockability, high efficiency, good filtration, availability and lack of need for large land areas, are enjoying from great importance in advanced wastewater treatment. Therefore, in this study, Polystyrene Coated by Sand (PCS) was produced as a novel media and its application in a modified down-flow BAF structure for advanced wastewater treatment was assessed in two steps. In step one, the backwash effluent did not return to the system, while in step two backwash effluent returned to increase the water reuse efficiency...
August 3, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28774089/on-the-sr1-xbaxfeo%C3%A2-f-oxyfluoride-perovskites-structure-and-magnetism-from-neutron-diffraction-and-m%C3%A3-ssbauer-spectroscopy
#3
Crisanto A García-Ramos, María Retuerto, José Antonio Alonso
Four oxyfluorides of the title series (x = 0.00, 0.25, 0.50, 0.75) have been stabilized by topotactic treatment of perovskite precursors Sr1-xBaxFeO3-δ prepared by soft-chemistry procedures, yielding reactive materials that can easily incorporate a substantial amount of F atoms at moderate temperatures, thus avoiding the stabilization of competitive SrF₂ and BaF₂ parasitic phases. XRD and Neutron Powder Diffraction (NPD) measurements assess the phase purity and yield distinct features concerning the unit cell parameters' variation, the Sr and Ba distribution, the stoichiometry of the anionic sublattice and the anisotropic displacement factors for O and F atoms...
November 29, 2016: Materials
https://www.readbyqxmd.com/read/28737272/dynamic-coupling-between-fmri-local-connectivity-and-interictal-eeg-in-focal-epilepsy-a-wavelet-analysis-approach
#4
Amir Omidvarnia, Mangor Pedersen, David N Vaughan, Jennifer M Walz, David F Abbott, Andrew Zalesky, Graeme D Jackson
Simultaneous scalp EEG-fMRI recording is a noninvasive neuroimaging technique for combining electrophysiological and hemodynamic aspects of brain function. Despite the time-varying nature of both measurements, their relationship is usually considered as time-invariant. The aim of this study was to detect direct associations between scalp-recorded EEG and regional changes of hemodynamic brain connectivity in focal epilepsy through a time-frequency paradigm. To do so, we developed a voxel-wise framework that analyses wavelet coherence between dynamic regional phase synchrony (DRePS, calculated from fMRI) and band amplitude fluctuation (BAF) of a target EEG electrode with dominant interictal epileptiform discharges (IEDs)...
July 24, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28734796/clonal-composition-of-human-ovarian-cancer-based-on-copy-number-analysis-reveals-a-reciprocal-relation-with-oncogenic-mutation-status
#5
Kazuko Sakai, Masayo Ukita, Jeanette Schmidt, Longyang Wu, Marco A De Velasco, Alan Roter, Luis Jevons, Kazuto Nishio, Masaki Mandai
Intratumoral heterogeneity of cancer cells remains largely unexplored. Here we investigated the composition of ovarian cancer and its biological relevance. A whole-genome single nucleotide polymorphism array was applied to detect the clonal composition of 24 formalin-fixed, paraffin-embedded samples of human ovarian cancer. Genome-wide segmentation data consisting of the log2 ratio (log2R) and B allele frequency (BAF) were used to calculate an estimate of the clonal composition number (CC number) for each tumor...
July 19, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28734219/acute-toxicity-of-cadmium-in-anisops-sardeus-heteroptera-notonectidae-effects-on-adult-and-nymphal-survival-and-swimming-behavior
#6
Chongtham Memtombi Chanu, Susmita Gupta, Abhik Gupta
Adult female and male, and final instar nymph of Anisops sardeus (Heteroptera: Notonectidae) were exposed to graded concentrations of cadmium in 96h static-with-renewal acute toxicity tests, which were conducted in dry (March) and wet (May-June) seasons. The 96h LC50 values for instar V nymph, adult female and male were found to be 0.9, 0.59 and 0.51mgL(-1) Cd, respectively, in wet season, while these were 26.7 and 20.2mgL(-1) Cd for adult female and male, respectively, in dry season. Adult males were most sensitive to Cd, followed by females in both seasons, while highest tolerance in wet season was observed in instar V nymph...
July 19, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28717667/haploinsufficiency-of-bcl11a-associated-with-cerebellar-abnormalities-in-2p15p16-1-deletion-syndrome
#7
Hiroko Shimbo, Takayuki Yokoi, Noriko Aida, Seiji Mizuno, Hiroshi Suzumura, Junichi Nagai, Kazumi Ida, Yumi Enomoto, Chihiro Hatano, Kenji Kurosawa
BACKGROUND: Chromosome 2p15p16.1 deletion syndrome is a rare genetic disorder characterized by intellectual disability (ID), neurodevelopmental delay, language delay, growth retardation, microcephaly, structural brain abnormalities, and dysmorphic features. More than 30 patients with 2p15p16.1 microdeletion syndrome have been reported in the literature. METHODS: Molecular analysis was performed using microarray-based comparative genomic hybridization (array CGH)...
July 2017: Molecular Genetics & Genomic Medicine
https://www.readbyqxmd.com/read/28717650/removal-of-cu-zn-pb-and-cr-from-yangtze-estuary-using-the-phragmites-australis-artificial-floating-wetlands
#8
Xiaofeng Huang, Feng Zhao, Gao Yu, Chao Song, Zhi Geng, Ping Zhuang
Contamination of heavy metals would threaten the water and soil resources; phytoremediation can be potentially used to remediate metal contaminated sites. We constructed the Phragmites australis artificial floating wetlands outside the Qingcaosha Reservoir in the Yangtze Estuary. Water characteristic variables were measured in situ by using YSI Professional Pro Meter. Four heavy metals (copper, zinc, lead, and chromium) in both water and plant tissues were determined. Four heavy metals in estuary water were as follows: 0...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28710983/seasonal-variation-of-bacterial-community-in-biological-aerated-filter-for-ammonia-removal-in-drinking-water-treatment
#9
Hongyuan Liu, Liying Zhu, Xiaohe Tian, Yeshi Yin
Biological aerated filter (BAF) is widely used in wastewater treatment plants (WWTPs) and shows potential application of micropolluted drinking water sources with a higher NH4(+)-N removal efficiency during short warm seasons. Here we adopted a pilot lava-based BAF setup as a pretreatment unit of drinking water treatment plant (DWTP) and achieved a great performance of ammonia removal over a two-year operation using natural river water. We respectively observed 92.62% of NH4(+)-N removal efficiency, 97.88% of NO2(-)-N removal efficiency in summer, and 77...
July 10, 2017: Water Research
https://www.readbyqxmd.com/read/28709072/stimulation-effect-of-electric-current-density-ecd-on-microbial-community-of-a-three-dimensional-particle-electrode-coupled-with-biological-aerated-filter-reactor-tde-baf
#10
Yan Feng, Xing Li, Ting Song, Yanzhen Yu, Jingyao Qi
Improving the stimulation effect of electric current density (ECD) on microbial community is critical in designing and operating TDE-BAF. This study investigated the effect of ECD at 0.00, 4.08, 6.12, 12.20, 14.25, 16.30 and 20.20A·m(-2) on the removal performance, diversity and structure of microbial community in TDE-BAF. Results indicated that the ECD of 14.25A·m(-2) exhibited the highest COD, TOC and NH4(+)-N average removal rates with 93.33%, 91.26% and 93.87%, respectively; Under high ECD, especially exceeding 14...
July 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28709038/rare-earths-zirconium-and-hafnium-distribution-in-coastal-areas-the-example-of-sabella-spallanzanii-gmelin-1791
#11
M G Parisi, I Cammarata, M Cammarata, V Censi
The Zr, Hf, Y and lanthanide (REE) distribution in biological tissues of Sabella spallanzanii and Styela plicata species collected from two harbours from the northern Sicily is studied for providing information regarding the Zr, Hf and REE uptake from the environment. Previous studies determined the fractionation of dissolved REE scavenged on binding sites onto biological surfaces. By comparing the recognised shale-normalised REE patterns of studied samples with evidence from reference data, the observed behaviour of these elements in biological tissues of Sabella spallanzanii and Styela plicata is interpreted to result from the preferential uptake of intermediate REE onto carboxylic sites...
October 2017: Chemosphere
https://www.readbyqxmd.com/read/28706277/dna-binding-drives-the-association-of-brg1-hbrm-bromodomains-with-nucleosomes
#12
Emma A Morrison, Julio C Sanchez, Jehnna L Ronan, Daniel P Farrell, Katayoun Varzavand, Jenna K Johnson, Brian X Gu, Gerald R Crabtree, Catherine A Musselman
BRG1 and BRM, central components of the BAF (mSWI/SNF) chromatin remodelling complex, are critical in chromatin structure regulation. Here, we show that the human BRM (hBRM) bromodomain (BRD) has moderate specificity for H3K14ac. Surprisingly, we also find that both BRG1 and hBRM BRDs have DNA-binding activity. We demonstrate that the BRDs associate with DNA through a surface basic patch and that the BRD and an adjacent AT-hook make multivalent contacts with DNA, leading to robust affinity and moderate specificity for AT-rich elements...
July 14, 2017: Nature Communications
https://www.readbyqxmd.com/read/28692054/modeling-cancer-driver-events-in-vitro-using-barrier-bypass-clonal-expansion-assays-and-massively-parallel-sequencing
#13
H Huskova, M Ardin, A Weninger, K Vargova, S Barrin, S Villar, M Olivier, T Stopka, Z Herceg, M Hollstein, J Zavadil, M Korenjak
The information on candidate cancer driver alterations available from public databases is often descriptive and of limited mechanistic insight, which poses difficulties for reliable distinction between true driver and passenger events. To address this challenge, we performed in-depth analysis of whole-exome sequencing data from cell lines generated by a barrier bypass-clonal expansion (BBCE) protocol. The employed strategy is based on carcinogen-driven immortalization of primary mouse embryonic fibroblasts and recapitulates early steps of cell transformation...
July 10, 2017: Oncogene
https://www.readbyqxmd.com/read/28688381/zeroth-order-regular-approximation-approach-to-electric-dipole-moment-interactions-of-the-electron
#14
Konstantin Gaul, Robert Berger
A quasi-relativistic two-component approach for an efficient calculation of P,T-odd interactions caused by a permanent electric dipole moment of the electron (eEDM) is presented. The approach uses a (two-component) complex generalized Hartree-Fock and a complex generalized Kohn-Sham scheme within the zeroth order regular approximation. In applications to select heavy-elemental polar diatomic molecular radicals, which are promising candidates for an eEDM experiment, the method is compared to relativistic four-component electron-correlation calculations and confirms values for the effective electric field acting on the unpaired electron for RaF, BaF, YbF, and HgF...
July 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28684548/lem-domain-proteins-are-lost-during-human-spermiogenesis-but-baf-and-baf-l-persist
#15
Razan A Elkhatib, Marine Paci, Romain Boissier, Guy Longepied, Yasmina Auguste, Vincent Achard, Patrice Bourgeois, Nicolas Levy, Nicolas Branger, Michael J Mitchell, Catherine Metzler-Guillemain
During spermiogenesis the spermatid nucleus is elongated, and dramatically reduced in size with protamines replacing histones to produce a highly compacted chromatin. After fertilisation, this process is reversed in the oocyte to form the male pronucleus. Emerging evidence, including the coordinated loss of the nuclear lamina (NL) and the histones, supports the involvement of the NL in spermatid nuclear remodelling, but how the NL links to the chromatin is not known. In somatic cells, interactions between the NL and the chromatin have been demonstrated: LEM-domain proteins and LBR interact with the NL and, respectively, the chromatin proteins BAF and HP1...
July 6, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28682597/the-effect-of-microplastic-on-the-uptake-of-chemicals-by-the-lugworm-arenicola-marina-l-under-environmentally-relevant-exposure-conditions
#16
Ellen Besseling, Edwin M Foekema, Martine J van den Heuvel-Greve, Albert A Koelmans
It has been hypothesized that ingestion of microplastic increases exposure of aquatic organisms to hydrophobic contaminants. To date, most laboratory studies investigated chemical transfer from ingested microplastic without taking other exposure pathways into account. Therefore, we studied the effect of polyethylene (PE) microplastic in sediment on PCB uptake by Arenicola marina as a model species, quantifying uptake fluxes from all natural exposure pathways. PCB concentrations in sediment, biota lipids (Clip) and porewater measured with passive samplers were used to derive lipid-normalized bioaccumulation metrics Clip, Biota sediment accumulation factor (BSAF), Bioaccumulation factor (BAF) and the Biota plastic accumulation factor (BPAF)...
August 1, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28677040/bioaccumulation-and-potential-sources-of-heavy-metal-contamination-in-fish-species-in-taiwan-assessment-and-possible-human-health-implications
#17
Chi Thanh Vu, Chitsan Lin, Gavin Yeh, Maria Ching Villanueva
In this study, tissues of five fish species prevalent in the Houjing River were analyzed for heavy metal concentrations. Results show concentrations of such metals to be much higher than internationally recommended standard limits (as determined by the WHO and FAO) and other similar studies. Heavy metal contamination of fish in the Houjing River is hence significant. High hazard and carcinogenic risk related to the Houjing River's fish was proven based on target hazard quotient (THQ) and target cancer risk (TR) estimations...
July 4, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28667653/occurrence-of-bronchial-anthracofibrosis-in-respiratory-symptomatics-with-exposure-to-biomass-fuel-smoke
#18
Vikas Pilaniya, Shekhar Kunal, Ashok Shah
INTRODUCTION: Bronchial anthracofibrosis (BAF), confirmed bronchoscopically, is characterised by bluish-black mucosal pigmentation and distortion/narrowing of the bronchus. We investigated the occurrence of BAF in respiratory symptomatics with biomass fuel smoke exposure and evaluated its clinico-radiological attributes and impact on functional status. MATERIAL AND METHODS: Of the eighty subjects evaluated, 60 consented for fiberoptic bronchoscopy (FOB). All 60 subjects also underwent chest radiography, high resolution computed tomography (HRCT) of the thorax, complete pulmonary function testing including diffusion capacity and six-minute-walk test...
2017: Advances in Respiratory Medicine
https://www.readbyqxmd.com/read/28649782/heterozygous-variants-in-actl6a-encoding-a-component-of-the-baf-complex-are-associated-with-intellectual-disability
#19
Ronit Marom, Mahim Jain, Lindsay C Burrage, I-Wen Song, Brett H Graham, Chester W Brown, Servi J C Stevens, Alexander P A Stegmann, Andrew T Gunter, Julie D Kaplan, Ralitza H Gavrilova, Marwan Shinawi, Jill A Rosenfeld, Yangjin Bae, Alyssa A Tran, Yuqing Chen, James T Lu, Richard A Gibbs, Christine Eng, Yaping Yang, Justine Rousseau, Bert B A de Vries, Philippe M Campeau, Brendan Lee
Pathogenic variants in genes encoding components of the BRG1-associated factor (BAF) chromatin remodeling complex have been associated with intellectual disability syndromes. We identified heterozygous, novel variants in ACTL6A, a gene encoding a component of the BAF complex, in three subjects with varying degrees of intellectual disability. Two subjects have missense variants affecting highly conserved amino acid residues within the actin-like domain. Missense mutations in the homologous region in yeast actin were previously reported to be dominant lethal and were associated with impaired binding of the human ACTL6A to β-actin and BRG1...
June 25, 2017: Human Mutation
https://www.readbyqxmd.com/read/28637768/vrk2a-is-an-a-type-lamin-dependent-nuclear-envelope-kinase-that-phosphorylates-baf
#20
K C Birendra, Danielle G May, Benjamin V Benson, Dae In Kim, Winnie G Shivega, Manaal H Ali, Randolph S Faustino, Alexandre R Campos, Kyle J Roux
The nuclear envelope (NE) is critical for numerous fundamental cellular functions and mutations in several NE constituents can lead to a heterogeneous spectrum of diseases. We used proximity biotinylation to uncover new constituents of the inner nuclear membrane (INM) by comparative BioID analysis of lamin-A, Sun2 and a minimal INM-targeting motif. These studies identified vaccinia-related kinase-2 (VRK2) as a candidate constituent of the INM. We determined that the transmembrane VRK2A isoform is retained at the NE by association with A-type lamins...
June 21, 2017: Molecular Biology of the Cell
keyword
keyword
20808
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"