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https://www.readbyqxmd.com/read/29793107/biofiltration-of-methane-using-hybrid-mixtures-of-biochar-lava-rock-and-compost
#1
Helen La, J Patrick A Hettiaratchi, Gopal Achari, Tobin J Verbeke, Peter F Dunfield
Using hybrid packing materials in biofiltration systems takes advantage of both the inorganic and organic properties offered by the medium including structural stability and a source of available nutrients, respectively. In this study, hybrid mixtures of compost with either lava rock or biochar in four different mixture ratios were compared against 100% compost in a methane biofilter with active aeration at two ports along the height of the biofilter. Biochar outperformed lava rock as a packing material by providing the added benefit of participating in sorption reactions with CH4 ...
May 21, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29793081/geochemical-anomalies-of-trace-elements-in-unremediated-soils-of-mt-karcz%C3%A3-wka-a-historic-lead-mining-area-in-the-city-of-kielce-poland
#2
Agnieszka Gałuszka, Zdzisław M Migaszewski, Sabina Dołęgowska, Artur Michalik
Concentrations of selected trace elements (Ag, As, Ba, Cd, Co, Cr, Cu, Mn, Ni, Pb, Zn) and rare earth elements were determined in 61 samples of surface soils collected from Mt. Karczówka, a historic Pb ore mining area located in the city of Kielce, south-central Poland. Some of these samples were subjected to XRD analyses and Pb stable isotope measurements. The mineral and chemical composition of rock samples were also examined. Mining activity in the study area was conducted mostly during 15th-17th centuries using technologically primitive methods, and was finally ceased in the first half of the 19th century...
May 21, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29793065/arsenic-removal-by-as-hyperaccumulator-pteris-vittata-from-two-contaminated-soils-a-5-year-study
#3
Evandro B da Silva, Jason T Lessl, Ann C Wilkie, Xue Liu, Yungen Liu, Lena Q Ma
The ability of As-hyperaccumulator Pteris vittata to remove As from two contaminated soils (CCA from an As-treated wood facility and DVA from a cattle-dipping vat) over 5 years was investigated for the first time. The goal was to evaluate P. vittata's ability to continuously remove As during 10 harvests and identify how soil As was affected by P. vittata under P-sufficient (P-fertilizer) and P-limiting (phosphate rock) conditions. Sequential extraction was used to determine changes in metal distribution among different soil fractions...
May 10, 2018: Chemosphere
https://www.readbyqxmd.com/read/29791884/rainfall-as-primary-driver-of-discharge-and-solute-export-from-rock-glaciers-the-col-d-olen-rock-glacier-in-the-nw-italian-alps
#4
Nicola Colombo, Stephan Gruber, Maria Martin, Mery Malandrino, Andrea Magnani, Danilo Godone, Michele Freppaz, Simona Fratianni, Franco Salerno
Three hypotheses exist to explain how meteorological variables drive the amount and concentration of solute-enriched water from rock glaciers: (1) Warm periods cause increased subsurface ice melt, which releases solutes; (2) rain periods and the melt of long-lasting snow enhance dilution of rock-glacier outflows; and (3) percolation of rain through rock glaciers facilitates the export of solutes, causing an opposite effect as that described in hypothesis (2). This lack of detailed understanding likely exists because suitable studies of meteorological variables, hydrologic processes and chemical characteristics of water bodies downstream from rock glaciers are unavailable...
May 20, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29791873/rhoa-rock-signaling-regulates-smooth-muscle-phenotypic-modulation-and-vascular-remodeling-via-the-jnk-pathway-and-vimentin-cytoskeleton
#5
Lian Tang, Fan Dai, Yan Liu, Xiaoqiang Yu, Chao Huang, Yuqin Wang, Wenjuan Yao
The RhoA/ROCK signaling pathway regulates cell morphology, adhesion, proliferation, and migration. In this study, we investigated the regulatory role of RhoA/ROCK signaling on PDGF-BB-mediated smooth muscle phenotypic modulation and vascular remodeling and clarified the molecular mechanisms behind these effects. PDGF-BB treatment induced the activation of RhoA, ROCK, PDGF-Rβ, and the expression of PDGF-Rβ in HA-VSMCs (human aortic vascular smooth muscle cells). PDGF-Rβ inhibition and RhoA suppression blocked PDGF-BB-induced RhoA activation and ROCK induction...
May 20, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29790073/effect-of-low-back-pain-risk-stratification-strategy-on-patient-outcomes-and-care-processes-the-match-randomized-trial-in-primary-care
#6
Dan Cherkin, Benjamin Balderson, Rob Wellman, Clarissa Hsu, Karen J Sherman, Sarah C Evers, Rene Hawkes, Andrea Cook, Martin D Levine, Diane Piekara, Pam Rock, Katherine Talbert Estlin, Georgie Brewer, Mark Jensen, Anne-Marie LaPorte, John Yeoman, Gail Sowden, Jonathan C Hill, Nadine E Foster
BACKGROUND: The STarT Back strategy for categorizing and treating patients with low back pain (LBP) improved patients' function while reducing costs in England. OBJECTIVE: This trial evaluated the effect of implementing an adaptation of this approach in a US setting. DESIGN: The Matching Appropriate Treatments to Consumer Healthcare needs (MATCH) trial was a pragmatic cluster randomized trial with a pre-intervention baseline period. Six primary care clinics were pair randomized, three to training in the STarT Back strategy and three to serve as controls...
May 22, 2018: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/29789526/hox-and-wnt-pattern-the-primary-body-axis-of-an-anthozoan-cnidarian-before-gastrulation
#7
Timothy Q DuBuc, Thomas B Stephenson, Amber Q Rock, Mark Q Martindale
Hox gene transcription factors are important regulators of positional identity along the anterior-posterior axis in bilaterian animals. Cnidarians (e.g., sea anemones, corals, and hydroids) are the sister group to the Bilateria and possess genes related to both anterior and central/posterior class Hox genes. Here we report a previously unrecognized domain of Hox expression in the starlet sea anemone, Nematostella vectensis, beginning at early blastula stages. We explore the relationship of two opposing Hox genes (NvAx6/NvAx1) expressed on each side of the blastula during early development...
May 22, 2018: Nature Communications
https://www.readbyqxmd.com/read/29789469/fungal-diversity-in-lichens-from-extremotolerance-to-interactions-with-algae
#8
REVIEW
Lucia Muggia, Martin Grube
Lichen symbioses develop long-living thallus structures even in the harshest environments on Earth. These structures are also habitats for many other microscopic organisms, including other fungi, which vary in their specificity and interaction with the whole symbiotic system. This contribution reviews the recent progress regarding the understanding of the lichen-inhabiting fungi that are achieved by multiphasic approaches (culturing, microscopy, and sequencing). The lichen mycobiome comprises a more or less specific pool of species that can develop symptoms on their hosts, a generalist environmental pool, and a pool of transient species...
May 22, 2018: Life
https://www.readbyqxmd.com/read/29788961/relationships-among-medication-adherence-lifestyle-modification-and-health-related-quality-of-life-in-patients-with-acute-myocardial-infarction-a-cross-sectional-study
#9
Yu-Mi Lee, Rock Bum Kim, Hey Jean Lee, Keonyeop Kim, Min-Ho Shin, Hyeung-Keun Park, Soon-Ki Ahn, So Young Kim, Young-Hoon Lee, Byoung-Gwon Kim, Heeyoung Lee, Won Kyung Lee, Kun Sei Lee, Mi-Ji Kim, Ki-Soo Park
BACKGROUND: The healthy adherer effect is a phenomenon in which patients who adhere to medical therapies tend to pursue health-seeking behaviors. Although the healthy adherer effect is supposed to affect health outcomes in patients with coronary artery disease, evaluation of its presence and extent is not easy. This study aimed to assess the relationship between medication adherence and lifestyle modifications and health-related quality of life among post-acute myocardial infarction (AMI) patients...
May 22, 2018: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/29788412/treatment-of-mal-de-debarquement-syndrome-in-a-deployed-environment
#10
Stephanie M Schenk, Jacklyn M Wagner, Jarrod A Miller, Tracey M Lyons-White, Emilee C Venn, Michael D April, Brit Long, Steven G Schauer, Joshua J Oliver
We report the case of a 26-year-old Caucasian female with persistent sensations of forward and reverse movement with spontaneous onset. This worsened over 4 wk. The patient reported an episode of these symptoms 5 mo prior, which lasted for 3 mo before improving. Our case details the treatment of Mal de Debarquement syndrome, or Disembarkment Syndrome, in a deployed military environment. Mal de Debarquement was a term originally coined to describe the persistent sensation of rocking back and forth after disembarking a boat and returning to land...
May 18, 2018: Military Medicine
https://www.readbyqxmd.com/read/29788117/are-we-ready-to-improve-phosphorus-homeostasis-in-rice
#11
Stanislav Kopriva, Chengcai Chu
Phosphorus (P) is an essential macronutrient which often limits plant growth, but the phosphate rock used for fertilizer production is a finite resource. On the other hand, large amounts of P compounds are entering surface waters, leading to eutrophication. Therefore, improvement of phosphate use efficiency of crop plants is a major task for plant science. Rice as a staple crop has recently been a focus of such efforts with several major discoveries. New transporters controlling phosphate homeostasis in rice have been discovered...
May 17, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29787856/the-association-of-disease-activity-pro-inflammatory-cytokines-and-neurotrophic-factors-with-depression-in-patients-with-rheumatoid-arthritis
#12
Yun-Hong Cheon, Seung-Geun Lee, Mingyo Kim, Hyun-Ok Kim, Young Sun Suh, Ki-Soo Park, Rock Bum Kim, Hyun-Su Yang, Ji-Min Kim, Chang-Nam Son, Eun Kyoung Park, Sang-Hyon Kim, Sang-Il Lee
Inflammation and trophic factors (brain-derived neurotrophic factor [BDNF], vascular endothelial growth factor, glial cell line-derived neurotrophic factor, and insulin-like growth factor-1) are associated with depression in the general population. Rheumatoid arthritis (RA) is a chronic representative inflammatory autoimmune disease; however, the association of disease activity, pro-inflammatory cytokines, and neurotrophic factors with depression has not been sufficiently investigated. Therefore, we determined the prevalence of depression and risk factors for depression and deterioration of depressive symptoms in RA patients...
May 19, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29787758/tissue-factor-mediates-microvesicles-shedding-from-mda-mb-231-breast-cancer-cells
#13
Araci M da R Rondon, Vitor H de Almeida, Tainá Gomes, Bruno R F Verçoza, Renato S Carvalho, Sandra König, Juliany C F Rodrigues, Claudia Dos S Mermelstein, Henri H Versteeg, Robson Q Monteiro
Extracellular vesicles, such as microvesicles (MVs), were identified as important players in tumor progression and acquisition of an aggressive phenotype. Tissue factor (TF) is a transmembrane protein that initiates the blood coagulation cascade. In tumor cells, TF has been associated with aggressiveness and cancer progression. Previous studies demonstrate that TF is incorporated into MVs secreted by tumor cells; however, it is unknown whether TF is actively involved in the release of MVs. Here, we investigated the influence of TF expression on the release of MVs...
May 19, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29787735/prp4-kinase-induces-actin-rearrangement-and-epithelial-mesenchymal-transition-through-modulation-of-the-actin-binding-protein-cofilin
#14
Salman Ul Islam, Muhammad Bilal Ahmed, Su Jin Lee, Adeeb Shehzad, Jong Kyung Sonn, Oh-Shin Kwon, Young Sup Lee
Cell actin cytoskeleton is primarily modulated by Rho family proteins. RhoA regulates several downstream targets, including Rho-associated protein kinase (ROCK), LIM-Kinase (LIMK), and cofilin. Pre-mRNA processing factor 4B (PRP4) modulates the actin cytoskeleton of cancer cells via RhoA activity inhibition. In this study, we discovered that PRP4 over-expression in HCT116 colon cancer cells induces cofilin dephosphorylation by inhibiting the Rho-ROCK-LIMK-cofilin pathway. Two-dimensional gel electrophoresis, and matrix-assisted laser desorption/ionization time-of-flight mass-spectrometry (MALDI-TOF MS) analysis indicated increased expression of protein phosphatase 1A (PP1A) in PRP4-transfected HCT116 cells...
May 19, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29787230/wavefunction-engineering-in-cdse-pbs-core-shell-quantum-dots
#15
Brian M Wieliczka, Alexey Leonid Kaledin, William E Buhro, Richard A Loomis
The synthesis of epitaxial CdSe/PbS core/shell quantum dots (QDs) is reported. The PbS shell grows in a rock salt structure on the zinc blende CdSe core, thereby creating a crystal structure mismatch through additive growth. Absorption and photoluminescence (PL) band edge features shift to lower energies with increasing shell thickness, but remain above the CdSe bulk band gap. Nevertheless, the profiles of the absorption spectra vary with shell growth, indicating that the overlap of the electron and hole wavefunctions is changing significantly...
May 22, 2018: ACS Nano
https://www.readbyqxmd.com/read/29784781/c-4-sterol-demethylation-enzymes-distinguish-bacterial-and-eukaryotic-sterol-synthesis
#16
Alysha K Lee, Amy B Banta, Jeremy H Wei, David J Kiemle, Ju Feng, José-Luis Giner, Paula V Welander
Sterols are essential eukaryotic lipids that are required for a variety of physiological roles. The diagenetic products of sterol lipids, sterane hydrocarbons, are preserved in ancient sedimentary rocks and are utilized as geological biomarkers, indicating the presence of both eukaryotes and oxic environments throughout Earth's history. However, a few bacterial species are also known to produce sterols, bringing into question the significance of bacterial sterol synthesis for our interpretation of sterane biomarkers...
May 21, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29783939/a-genome-wide-association-study-reveals-novel-genomic-regions-and-positional-candidate-genes-for-fat-deposition-in-broiler-chickens
#17
Gabriel Costa Monteiro Moreira, Clarissa Boschiero, Aline Silva Mello Cesar, James M Reecy, Thaís Fernanda Godoy, Priscila Anchieta Trevisoli, Maurício E Cantão, Mônica Corrêa Ledur, Adriana Mércia Guaratini Ibelli, Jane de Oliveira Peixoto, Ana Silvia Alves Meira Tavares Moura, Dorian Garrick, Luiz Lehmann Coutinho
BACKGROUND: Excess fat content in chickens has a negative impact on poultry production. The discovery of QTL associated with fat deposition in the carcass allows the identification of positional candidate genes (PCGs) that might regulate fat deposition and be useful for selection against excess fat content in chicken's carcass. This study aimed to estimate genomic heritability coefficients and to identify QTLs and PCGs for abdominal fat (ABF) and skin (SKIN) traits in a broiler chicken population, originated from the White Plymouth Rock and White Cornish breeds...
May 21, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29782855/role-of-statins-and-mevalonate-pathway-on-impaired-hdac2-activity-induced-by-oxidative-stress-in-human-airway-epithelial-cells
#18
Maria Gabriella Matera, Luigino Calzetta, Giulia Gritti, Laura Gallo, Brunella Perfetto, Giovanna Donnarumma, Mario Cazzola, Paola Rogliani, Maria Donniacuo, Barbara Rinaldi
In patients with chronic obstructive pulmonary disease (COPD) the inflammatory response is often steroid-resistant, likely since oxidative stress and cigarette smoking impair histone deacetylase 2 (HDAC2) activity. Since it has been demonstrated that statins may restore the HDAC2 activity in cultured human endothelial cells, the aim of this study was to investigate the effects of statins in reversing the steroid-resistance induced by oxidative stress. We evaluated the effects of simvastatin and dexamethasone on HDAC2 expression and activity, and the role of mevalonate and Rho/ROCK pathways in A549 cells, a human lung type II epithelial cell line stressed with H2 O2 ...
May 18, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29781091/fetal-assessment-in-buprenorphine-maintained-women-using-fetal-magnetoencephalography-a-pilot-study
#19
Diana Escalona-Vargas, Jessica L Coker, Shona Ray-Griffith, Eric R Siegel, Curtis L Lowery, Zachary N Stowe, Hari Eswaran
BACKGROUND AND AIMS: In-utero exposure to opioids including buprenorphine (BUP) has been shown to affect fetal activity, specifically heart-rate variability (FHRV) and fetal movement (FM). Our objective was to extract simultaneous recordings of fetal cardiac, and brain-related activity in BUP-maintained and non-opioid exposed pregnant women using a novel non-invasive biomagnetic technique. DESIGN: A pilot study was conducted, recording and analyzing biomagnetic data from fetuses of BUP-maintained and non-opioid exposed pregnant women...
May 20, 2018: Addiction
https://www.readbyqxmd.com/read/29780584/opening-the-black-box-of-spring-water-microbiology-from-alpine-karst-aquifers-to-support-proactive-drinking-water-resource-management
#20
REVIEW
Domenico Savio, Philipp Stadler, Georg H Reischer, Alexander K T Kirschner, Katalin Demeter, Rita Linke, Alfred P Blaschke, Regina Sommer, Ulrich Szewzyk, Inés C Wilhartitz, Robert L Mach, Hermann Stadler, Andreas H Farnleitner
Over the past 15 years, pioneering interdisciplinary research has been performed on the microbiology of hydrogeologically well-defined alpine karst springs located in the Northern Calcareous Alps (NCA) of Austria. This article gives an overview on these activities and links them to other relevant research. Results from the NCA springs and comparable sites revealed that spring water harbors abundant natural microbial communities even in aquifers with high water residence times and the absence of immediate surface influence...
May 2018: WIREs. Water
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