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https://www.readbyqxmd.com/read/28731094/assembly-and-dichroism-of-a-four-component-halogen-bonded-metal-organic-cocrystal-salt-solvate-involving-dicyanoaurate-i-acceptors
#1
Jan-Constantin Christopherson, Karlie P Potts, Oleksandr S Bushuyev, Filip Topić, Igor Huskić, Kari Rissanen, Christopher J Barrett, Tomislav Friščić
We describe the use of dicyanoaurate ions as linear ditopic metal-organic acceptors for the halogen bond-driven assembly of a dichroic metal-organic cocrystal based on azobenzene chromophores. Structural analysis by single crystal X-ray diffraction revealed that the material is a four-component solid, consisting of anticipated anionic metal-organic halogen-bonded chains based on dicyanoaurate ions, as well as complex potassium-based cations and discrete molecules of the crown ether 15-crown-5. Importantly, the structural analysis revealed the parallel alignment of the halogen-bonded chains required for dichroic behaviour, confirming that crystal engineering principles developed for the design of halogen-bonded dichroic organic cocrystals are also applicable to metal-based structures...
July 21, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28720836/calcifying-algae-maintain-settlement-cues-to-larval-abalone-following-algal-exposure-to-extreme-ocean-acidification
#2
Jennifer K O'Leary, James P Barry, Paul W Gabrielson, Laura Rogers-Bennett, Donald C Potts, Stephen R Palumbi, Fiorenza Micheli
Ocean acidification (OA) increasingly threatens marine systems, and is especially harmful to calcifying organisms. One important question is whether OA will alter species interactions. Crustose coralline algae (CCA) provide space and chemical cues for larval settlement. CCA have shown strongly negative responses to OA in previous studies, including disruption of settlement cues to corals. In California, CCA provide cues for seven species of harvested, threatened, and endangered abalone. We exposed four common CCA genera and a crustose calcifying red algae, Peyssonnelia (collectively CCRA) from California to three pCO2 levels ranging from 419-2,013 µatm for four months...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28713383/the-toxicological-mechanisms-of-environmental-soot-black-carbon-and-carbon-black-focus-on-oxidative-stress-and-inflammatory-pathways
#3
REVIEW
Rituraj Niranjan, Ashwani Kumar Thakur
The environmental soot and carbon blacks (CBs) cause many diseases in humans, but their underlying mechanisms of toxicity are still poorly understood. Both are formed after the incomplete combustion of hydrocarbons but differ in their constituents and percent carbon contents. For the first time, "Sir Percival Pott" described soot as a carcinogen, which was subsequently confirmed by many others. The existing data suggest three main types of diseases due to soot and CB exposures: cancer, respiratory diseases, and cardiovascular dysfunctions...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28709307/determination-of-the-conformal-field-theory-central-charge-by-the-wang-landau-algorithm
#4
P A Belov, A A Nazarov, A O Sorokin
We present a simple method to estimate the central charge of the conformal field theory corresponding to a critical point of a two-dimensional lattice model from Monte Carlo simulations. The main idea is to use the Wang-Landau flat-histogram algorithm, which allows us to obtain the free energy of a lattice model on a torus as a function of torus radii. The central charge is calculated with good precision from a free-energy scaling at the critical point. We apply the method to the Ising, tricritical Ising (Blume-Capel), Potts, and site-diluted Ising models, and we also discuss an estimation of the conformal weights...
June 2017: Physical Review. E
https://www.readbyqxmd.com/read/28700972/evaluating-the-use-of-in-situ-turbidity-measurements-to-quantify-fluvial-sediment-and-phosphorus-concentrations-and-fluxes-in-agricultural-streams
#5
Marc Stutter, Julian J C Dawson, Miriam Glendell, Fiona Napier, Jacqueline M Potts, James Sample, Andrew Vinten, Helen Watson
Accurate quantification of suspended sediments (SS) and particulate phosphorus (PP) concentrations and loads is complex due to episodic delivery associated with storms and management activities often missed by infrequent sampling. Surrogate measurements such as turbidity can improve understanding of pollutant behaviour, providing calibrations can be made cost-effectively and with quantified uncertainties. Here, we compared fortnightly and storm intensive water quality sampling with semi-continuous turbidity monitoring calibrated against spot samples as three potential methods for determining SS and PP concentrations and loads in an agricultural catchment over two-years...
July 9, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28696745/exact-results-for-quenched-bond-randomness-at-criticality
#6
Gesualdo Delfino
We introduce an exact replica method for the study of critical systems with quenched bond randomness in two dimensions. For the q-state Potts model, we show that a line of renormalization group fixed points interpolates from weak to strong randomness as q-2 grows from small to large values. This theory exhibits a q-independent sector, and allows at the same time for a correlation length exponent which keeps the Ising value and continuously varying magnetization exponent and effective central charge. These findings appear to solve long-standing numerical and theoretical puzzles, and to illustrate the peculiarities which may characterize the conformal field theories of random fixed points...
June 23, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28694830/erratum-to-do-epinephrine-auto-injectors-have-an-unsuitable-needle-length-in-children-and-adolescents-at-risk-for-anaphylaxis-from-food-allergy
#7
Sten Dreborg, Xia Wen, Laura Kim, Gina Tsai, Immaculate Nevis, Ryan Potts, Jack Chiu, Arunmozhi Dominic, Harold Kim
[This corrects the article DOI: 10.1186/s13223-016-0110-8.].
2017: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/28686877/editorial-comment
#8
Jeannette M Potts
No abstract text is available yet for this article.
July 4, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28680728/intradural-extramedullary-cavernous-malformation-with-extensive-superficial-siderosis-of-the-neuraxis-case-report-and-review-of-literature
#9
Pedram Golnari, Sameer A Ansari, Ali Shaibani, Michael C Hurley, Matthew B Potts, Missia E Kohler, Patrick A Sugrue, Babak S Jahromi
BACKGROUND: Spinal cavernous malformations usually affect the vertebral bodies and are seldom intradural. Here, we report a rare spinal intradural-extramedullary cavernous malformation associated with extensive superficial siderosis along the neuraxis in a patient with radicular complaints. CASE DESCRIPTION: A 60-year-old male presented with subacute headaches, intermittent fever, and acute back and radicular leg pain for 1-2 weeks. Magnetic resonance imaging revealed an intradural-extramedullary lesion just below the conus medullaris (at the L2 level)...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28679172/potts-shunt-in-children-with-pulmonary-arterial-hypertension-institutional-experience
#10
Sergey V Gorbachevsky, Anton A Shmalts, Irina Y Barishnikova, Sergey B Zaets
OBJECTIVES: Since 2004, different techniques for the Potts shunt have been used in patients with incurable pulmonary arterial hypertension. However, the experience with these interventions in a single institution is limited. We present our series of Potts shunts in children with pulmonary arterial hypertension. METHODS: Eight patients with suprasystemic pulmonary arterial hypertension (pulmonary artery-to-aorta mean pressure ratio of 1.39 ± 0.30) had a Potts shunt at the median age of 13...
June 29, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28678279/a-novel-ta-w-mixed-addendum-polyoxometalate-with-photocatalytic-properties
#11
Peng Huang, Hai-Yang Wu, Min Huang, Meng Du, Chao Qin, Xin-Long Wang, Zhong-Min Su
An unprecedented polytantalotungstate (POTT), Cs12.5K4.5H[Ta12Si4W37O158]·25H2O (1), based on the {SiW9Ta3O40}(7-) cluster was hydrothermally synthesized. A photocatalytic study revealed that 1 exhibits significant photocatalytic water splitting activity.
July 5, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28668050/ionization-of-pyridine-interplay-of-orbital-relaxation-and-electron-correlation
#12
A B Trofimov, D M P Holland, I Powis, R C Menzies, A W Potts, L Karlsson, E V Gromov, I L Badsyuk, J Schirmer
The valence shell ionization spectrum of pyridine was studied using the third-order algebraic-diagrammatic construction approximation scheme for the one-particle Green's function and the outer-valence Green's function method. The results were used to interpret angle resolved photoelectron spectra recorded with synchrotron radiation in the photon energy range of 17-120 eV. The lowest four states of the pyridine radical cation, namely, (2)A2(1a2(-1)), (2)A1(7a1(-1)), (2)B1(2b1(-1)), and (2)B2(5b2(-1)), were studied in detail using various high-level electronic structure calculation methods...
June 28, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28663136/can-salivary-testosterone-and-cortisol-reactivity-to-a-mid-week-stress-test-discriminate-a-match-outcome-during-international-rugby-union-competition
#13
Blair T Crewther, Neil Potts, Liam P Kilduff, Scott Drawer, Christian J Cook
OBJECTIVES: Evidence suggests that stress-induced changes in testosterone and cortisol are related to future competitive behaviours and team-sport outcomes. Therefore, we examined whether salivary testosterone and cortisol reactivity to a mid-week stress test can discriminate a match outcome in international rugby union competition. DESIGN: Single group, quasi-experimental design with repeated measures. METHOD: Thirty-three male rugby players completed a standardised stress test three or four days before seven international matches...
June 2, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28663043/patients-and-procedural-characteristics-of-av-block-during-slow-pathway-modulation-for-avnrt-single-center-10year-experience
#14
Kristina Wasmer, Dirk G Dechering, Julia Köbe, Patrick Leitz, Gerrit Frommeyer, Phillip S Lange, Simon Kochhäuser, Florian Reinke, Christian Pott, Gerold Mönnig, Günter Breithardt, Lars Eckardt
BACKGROUND: Permanent AV-block is a recognized and feared complication of slow pathway modulation for AVNRT. We aimed to assess incidence of transient and permanent AV-block as well as consequences of transient AV-block in a large contemporary AVNRT ablation cohort. METHODS: We searched our single center prospective ablation database for occurrence of transient and permanent AV-block during slow pathway modulation between January 2004 and October 2015. We analyzed patients' and procedural characteristics as well as outcome of patients in whom transient or permanent AV-block occurred...
June 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28655288/together-they-stand-interpreting-not-at-issue-content
#15
Lyn Frazier, Brian Dillon, Charles Clifton
Potts unified the account of appositives, parentheticals, expressives, and honorifics as 'Not- At-Issue' (NAI) content, treating them as a natural class semantically in behaving like root (unembedded) structures, typically expressing speaker commitments, and being interpreted independently of At-Issue content. We propose that NAI content expresses a complete speech act distinct from the speech act of the containing utterance. The speech act hypothesis leads us to expect the semantic properties Potts established...
June 1, 2017: Language and Speech
https://www.readbyqxmd.com/read/28653622/simultaneous-measurement-of-chromatin-accessibility-dna-methylation-and-nucleosome-phasing-in-single-cells
#16
Sebastian Pott
Gaining insights into the regulatory mechanisms that underlie the transcriptional variation observed between individual cells necessitates the development of methods that measure chromatin organization in single cells. Here I adapted Nucleosome Occupancy and Methylome-sequencing (NOMe-seq) to measure chromatin accessibility and endogenous DNA methylation in single cells (scNOMe-seq). scNOMe-seq recovered characteristic accessibility and DNA methylation patterns at DNase hypersensitive sites (DHSs). An advantage of scNOMe-seq is that sequencing reads are sampled independently of the accessibility measurement...
June 27, 2017: ELife
https://www.readbyqxmd.com/read/28651547/autoantibodies-against-baff-april-or-il21-an-alternative-pathogenesis-for-antibody-deficiencies
#17
Marian-Christopher Pott, Natalie Frede, Jennifer Wanders, Lennart Hammarström, Erik-Oliver Glocker, Cristina Glocker, Fariba Tahami, Bodo Grimbacher
BACKGROUND: The ability of anti-cytokine antibodies to play a disease-causing role in the pathogenesis of immunodeficiencies is widely accepted. The aim of this study was to investigate whether autoantibodies against BAFF (important B cell survival signal), APRIL (important plasma cell survival signal), or Interleukin-21 (important cytokine for immunoglobulin class switch) present an alternative mechanism for the development of the following primary antibody deficiencies (PADs): common variable immune deficiency (CVID) or selective IgA deficiency (sIgAD)...
June 26, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28642363/nuclear-phosphorylated-dicer-processes-double-stranded-rna-in-response-to-dna-damage
#18
Kaspar Burger, Margarita Schlackow, Martin Potts, Svenja Hester, Shabaz Mohammed, Monika Gullerova
The endoribonuclease Dicer is a key component of the human RNA interference pathway and is known for its role in cytoplasmic microRNA production. Recent findings suggest that noncanonical Dicer generates small noncoding RNA to mediate the DNA damage response (DDR). Here, we show that human Dicer is phosphorylated in the platform-Piwi/Argonaute/Zwille-connector helix cassette (S1016) upon induction of DNA damage. Phosphorylated Dicer (p-Dicer) accumulates in the nucleus and is recruited to DNA double-strand breaks...
June 22, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28641257/fast-segmentation-from-blurred-data-in-3d-fluorescence-microscopy
#19
Martin Storath, Dennis Rickert, Michael Unser, Andreas Weinmann
We develop a fast algorithm for segmenting 3D images from linear measurements based on the Potts model (or piecewise constant Mumford-Shah model). To that end, we first derive suitable space discretizations of the 3D Potts model which are capable of dealing with 3D images defined on non-cubic grids. Our discretization allows us to utilize a specific splitting approach which results in decoupled subproblems of moderate size. The crucial point in the 3D setup is that the number of independent subproblems is so large that we can reasonably exploit the parallel processing capabilities of the graphics processing units (GPU)...
June 16, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28638545/program-performance-in-the-next-accreditation-system-nas-results-of-the-2015-2016-annual-data-review
#20
Lauren M Byrne, Rebecca S Miller, Ingrid Philibert, Louis J Ling, John R Potts, Mary W Lieh-Lai, Thomas J Nasca
No abstract text is available yet for this article.
June 2017: Journal of Graduate Medical Education
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