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https://www.readbyqxmd.com/read/28817775/departure-from-a-spherically-symmetric-ground-state-in-a-system-with-a-half-filled-shell-the-case-example-of-berkelium-iv-iodate
#1
Mark A Silver, Samantha K Cary, Alejandro J Garza, Ryan E Baumbach, Alexandra A Arico, Gregory A Galmin, Kuan-Wen Chen, Jason A Johnson, Jamie C Wang, Ronald J Clark, Alexander Chemey, Teresa M Eaton, Matthew L Marsh, Kevin Seidler, Shane S Galley, Lambertus van de Burgt, Ashley L Gray, David E Hobart, Kenneth Hanson, Shelley M van Cleve, Frédéric Gendron, Jochen Autschbach, Gustavo E Scuseria, Laurent Maron, Manfred Speldrich, Paul Kögerler, Cristian Celis-Barros, Dayán Paéz-Hernandéz, Ramiro Arratia-Perez, Michael Ruf, Thomas E Albrecht-Schmitt
The reaction of 249Bk(OH)4 with iodate under hydrothermal conditions results in the formation of Bk(IO3)3 as the major product with trace amounts of Bk(IO3)4 also crystallizing from the reaction mixture. The structure of Bk(IO3)3 consists of nine-coordinate BkIII cations that are bridged by iodate anions to yield layers that are isomorphous with those found for AmIII, CfIII, and with lanthanides that possess similar ionic radii. Bk(IO3)4 was expected to adopt the same structure as M(IO3)4 (M = Ce, Np, Pu), but instead parallels the structural chemistry of the smaller ZrIV cation...
August 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28817281/linking-solution-structures-and-energetics-thorium-nitrate-complexes
#2
Suntharalingam Skanthakumar, Geng Bang Jin, Jian Lin, Valérie Vallet, Lynda Soderholm
Seeking predictive insights into how metal-ion speciation impacts solution chemistry as well as the composition and structure of solid-precipitates, thorium correlations, with both solvent and other solute ions, were quantitatively probed in a series of acidic, nitrate/perchlorate solutions held at constant ionic strength. Difference pair-distribution functions (dPDF), obtained from high-energy x-ray scattering (HEXS) data, provide unprecedented structural information on the number of Th ligating ions in solution and how they change with increasing nitrate concentration...
August 17, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28816612/protecting-pregnant-workers-while-fighting-sexism-work-pregnancy-balance-and-pregnant-nurses-resistance-in-qu%C3%A3-bec-hospitalsprot%C3%A3-ger-les-travailleuses-enceintes-en-luttant-contre-le-sexisme-%C3%A3-quilibre-travail-grossesse-et-r%C3%A3-sistance-d-infirmi%C3%A3-res-enceintes
#3
Anne Renée Gravel, Jessica Riel, Karen Messing
Women's workplaces should guarantee healthy pregnancies while supporting pregnant women as workers. In Québec (Canada), a pregnant worker exposed to a "danger" for herself or her fetus may ask her employer to be reassigned to other work appropriate to her skills. This approach differs from other regulatory contexts in North America in that protection of fetal and maternal health is embedded in the health and safety legislation. The advantage is that the pregnant worker is guaranteed access to her full salary, but some may question whether specific provisions for pregnant women single out such women and produce risks for their careers or, conversely, pregnancy should receive even more special consideration...
January 1, 2017: New Solutions: a Journal of Environmental and Occupational Health Policy: NS
https://www.readbyqxmd.com/read/28811533/plasma-metabolomics-profiling-of-maintenance-hemodialysis-based-on-capillary-electrophoresis-time-of-flight-mass-spectrometry
#4
Shuxin Liu, Lichao Wang, Chunxiu Hu, Xin Huang, Hong Liu, Qiuhui Xuan, Xiaohui Lin, Xiaojun Peng, Xin Lu, Ming Chang, Guowang Xu
Uremia has been a rapidly increasing health problem in China. Hemodialysis (HD) is the main renal replacement therapy for uremia. The results of large-scale clinical trials have shown that the HD pattern is crucial for long-term prognosis of maintenance hemodialysis (MHD) in uremic patients. Plasma metabolism is very important for revealing the biological insights linked to the therapeutic effects of the HD pattern on uremia. Alteration of plasma metabolites in uremic patients in response to HD therapy has been reported...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28799594/the-photoluminescence-thermal-properties-and-tunable-color-of-na1-xal1-2xsi1-2xo4-xce-3-tb-3-dy-3-via-energy-transfer-a-single-component-multicolor-emitting-phosphor
#5
Chengyi Xu, Yanhua Song, Hongxia Guan, Ye Sheng, Pingchuan Ma, Xiuqing Zhou, Zhan Shi, Haifeng Zou
A series of emission-tunable Na1-xAl1+2xSi1-2xO4:xCe(3+)/Tb(3+)/Dy(3+) phosphors were synthesized via a high temperature solid-state reaction method. Luminescence properties, energy transfer from Ce(3+) to Tb(3+) or Dy(3+) ions, color tuning and thermal stability were systematically investigated. Particularly, the charge compensating defect generated by doping of rare earth ions was remedied through Al(3+) substituted Si(4+). Meanwhile, the emission intensity was significantly improved. The presence and content of various elements were demonstrated through data combined with the crystallographic data from Rietveld refinements and the analysis of SEM and mapping for each element...
August 11, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28782386/glottis-effects-on-the-cough-clearance-process-simulated-with-a-cfd-dynamic-mesh-and-eulerian-wall-film-model
#6
Concepción Paz, Eduardo Suárez, Oscar Parga, Jesús Vence
In this study, we have reproduced the cough clearance process with an Eulerian wall film model. The simulated domain is based on realistic geometry from the literature, which has been improved by adding the glottis and epiglottis. The vocal fold movement has been included due to the dynamic mesh method, considering different abduction and adduction angles and velocities. The proposed methodology captures the deformation of the flexible tissue, considers non-Newtonian properties for the mucus, and enables us to reproduce a single cough or a cough epoch...
August 7, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28780151/genetic-differentiation-of-the-g6-7-cluster-of-echinococcus-canadensis-based-on-mitochondrial-marker-genes
#7
Francis Addy, Marion Wassermann, Dorothy Kagendo, Dennis Ebi, Eberhard Zeyhle, Ibrahim E Elmahdi, Gerald Umhang, Adriano Casulli, Majid F Harandi, Ortwin Aschenborn, Peter Kern, Ute Mackenstedt, Thomas Romig
Among the genotype/species causing cystic echinococcosis, the taxonomic status of Echinococcus canadensis is only partially resolved. Within E. canadensis, four genotypes (G6, G7, G8 and G10) have been described based on short mitochondrial sequences, of which G6 and G7 (the 'camel' and the 'pig' strain, respectively) are closely related and variously regarded as microvariants of a single strain G6/7. Globally, this G6/7 cluster is the second most important agent of human cystic echinococcosis and is the predominant Echinococcus taxon in large parts of sub-Saharan Africa...
August 3, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28773155/variation-of-structure-and-photoluminescence-properties-of-ce-3-doped-mgalon-transparent-ceramics-with-different-doping-content
#8
Xin Liu, Bowen Chen, Bingtian Tu, Hao Wang, Weimin Wang, Zhengyi Fu
Transparent MgAlON:Ce fluorescent ceramics with doping content of 0.005, 0.01, and 0.02 at % were fabricated by pressureless sintering. All the samples were dense and large in grain size. Under the excitation of 320 nm UV, the samples emitted blue lights centered around 410 nm. The 0.005 and 0.01 at % Ce(3+) doped samples were single phase by XRD detection, and possessed good optical and mechanical properties, and luminous thermal stability. The fluorescence lifetime, the CL and PL spectra analysis, indicated that most of the luminous centers were segregated in GB, and there was still a small part of second phase existing in 0...
July 13, 2017: Materials
https://www.readbyqxmd.com/read/28762668/luminescent-properties-of-single-phase-ba2-x-1-5y-1-5z-p2-o7-xeu-2-yce-3-ztb-3-phosphors-for-white-light-emitting-diode
#9
Sha-Sha Liu, Da-Chuan Zhu, Cong Zhao, Tao Han
A series of Ba2 P2 O7 :xEu(2+) ,yCe(3+) ,zTb(3+) phosphors was synthesized via a co-precipitation method, then their crystal structure, quantum efficiency and luminescent properties were analyzed by XRD and FL, respectively. The results showed that these phosphors not only presented the excitation characteristics of Ba2 P2 O7 :xEu(2+) ,zTb(3+) , but also exhibited that of the Ba2 P2 O7 :yCe(3+) ,zTb(3+) phosphor. Meanwhile, the tri-doped phosphor showed a stronger absorption around 320 nm in contrast with the Eu(2+) /Ce(3+) :Tb(3+) co-doped phosphor...
August 1, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/28745616/non-classical-behaviour-of-higher-valence-dopants-in-chromium-iii-oxide-by-a-cr-vacancy-compensation-mechanism
#10
John J Carey, Michael Nolan
Modification of metal oxides with dopants that have a stable oxidation in their parent oxides which is higher than the host system is expected to introduce extra electrons which may result in enhanced carrier mobility. This is essential for applications in catalysis, SOFCs and solar energy materials. Density functional theory calculations are used to investigate the change in electronic and geometric structure of chromium (III) oxide by doping with higher valence metal cations, namely; Ce, Ti, V and Zr. For single metal doping (1%), we find that the dopants with variable oxidation states, Ce, Ti and V take a +3 oxidation state, and Zr takes a +4 oxidation state while also reducing a neighbouring Cr3+ to Cr2+...
July 26, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28741937/lanthanide-organophosphate-spiro-polymers-synthesis-structure-and-magnetocaloric-effect-in-the-gadolinium-polymer
#11
Sandeep K Gupta, Gulzar A Bhat, Ramaswamy Murugavel
Spirocyclic lanthanide organophosphate polymers, {[Ln(dipp)(dippH)(CH3OH)(H2O)2](CH3OH)2}n [Ln = La (1), Ce (2), Pr (3), Nd (4), Sm (5), Eu (6), Gd (7), Tb (8), Dy (9), Ho (10), Er (11)], have been prepared from the reaction of Ln(NO3)3·xH2O with sterically hindered 2,6-diisopropylphenyl phosphate (dippH2) using aqueous NaOH as the base. The one-dimensional chainlike lanthanide (III) organophosphate coordination polymers have been characterized with the aid of analytical and spectroscopic methods. The single crystal structure determination of polymers (2-5 and 7-11) reveals that in these compounds the hydrophobic organic groups of the phosphate provide a protective coating for the inorganic lanthanide phosphate polymeric chain...
August 7, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28728056/sequence-based-diversity-of-23-autosomal-str-loci-in-koreans-investigated-using-an-in-house-massively-parallel-sequencing-panel
#12
Eun Hye Kim, Hwan Young Lee, So Yeun Kwon, Eun Young Lee, Woo Ick Yang, Kyoung-Jin Shin
As DNA databases continue to grow and international cooperation increases, forensic STR loci have expanded to increase the discriminatory power and inter-database compatibility. Current capillary electrophoresis (CE) and/or massively parallel sequencing (MPS)-based commercial STR analysis systems reflect such changing trends of expanding STR loci. Due to the general gains of larger multiplexing and the detection of sequence variation, the application of MPS technology to STR analysis has further improved discrimination and is expected to aid in mixture interpretation by increasing the effective number of alleles...
July 9, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28722357/energy-migration-upconversion-in-ce-iii-doped-heterogeneous-core-shell-shell-nanoparticles
#13
Xian Chen, Limin Jin, Tianying Sun, Wei Kong, Siu Fung Yu, Feng Wang
One major challenge in upconversion research is to develop new materials and structures to expand the emission spectrum. Herein, a heterogeneous core-shell-shell nanostructure of NaYbF4 :Gd/Tm@NaGdF4 @CaF2 :Ce is developed to realize efficient photon upconversion in Ce(3+) ions through a Gd-mediated energy migration process. The design takes advantage of CaF2 host that reduces the 4f-5d excitation frequency of Ce(3+) to match the emission line of Gd(3+) . Meanwhile, CaF2 is isostructural with NaGdF4 and can form a continuous crystalline lattice with the core layer...
July 19, 2017: Small
https://www.readbyqxmd.com/read/28718832/application-of-carbon-nanotubes-in-chiral-and-achiral-separations-of-pharmaceuticals-biologics-and-chemicals
#14
REVIEW
Ayman L Hemasa, Nenad Naumovski, William A Maher, Ashraf Ghanem
Carbon nanotubes (CNTs) possess unique mechanical, physical, electrical and absorbability properties coupled with their nanometer dimensional scale that renders them extremely valuable for applications in many fields including nanotechnology and chromatographic separation. The aim of this review is to provide an updated overview about the applications of CNTs in chiral and achiral separations of pharmaceuticals, biologics and chemicals. Chiral single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) have been directly applied for the enantioseparation of pharmaceuticals and biologicals by using them as stationary or pseudostationary phases in chromatographic separation techniques such as high-performance liquid chromatography (HPLC), capillary electrophoresis (CE) and gas chromatography (GC)...
July 18, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28716904/intracellular-zinc-activates-kcnq-channels-by-reducing-their-dependence-on-phosphatidylinositol-4-5-bisphosphate
#15
Haixia Gao, Aurélien Boillat, Dongyang Huang, Ce Liang, Chris Peers, Nikita Gamper
M-type (Kv7, KCNQ) potassium channels are proteins that control the excitability of neurons and muscle cells. Many physiological and pathological mechanisms of excitation operate via the suppression of M channel activity or expression. Conversely, pharmacological augmentation of M channel activity is a recognized strategy for the treatment of hyperexcitability disorders such as pain and epilepsy. However, physiological mechanisms resulting in M channel potentiation are rare. Here we report that intracellular free zinc directly and reversibly augments the activity of recombinant and native M channels...
August 1, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28710845/chitosan-membranes-application-on-the-prostatic-neurovascular-bundles-following-robot-assisted-radical-prostatectomy-a-phase-ii-study
#16
F Porpiglia, R Bertolo, C Fiori, M Manfredi, S De Cillis, S Geuna
OBJECTIVE: To evaluate the feasibility and the safety of the application of chitosan membranes on the neuro-vascular bundles after nerve-sparing Robot-Assisted Radical Prostatectomy (RARP). The secondary aim of the study was to report preliminary data and more particularly potency recovery data. MATERIALS AND METHODS: Single-center, single-arm prospective study. Enrolment from July 2015 to September 2016 of all patients with localized prostate cancer scheduled for RARP with IIEF-5 score > 17 after San Luigi Gonzaga Hospital Ethics Committee (Orbassano) approval (80/2015) and patient's acceptance...
July 15, 2017: BJU International
https://www.readbyqxmd.com/read/28710537/cardiac-safety-of-non-anthracycline-trastuzumab-based-therapy-for-her2-positive-breast-cancer
#17
Anthony F Yu, Roy B Mukku, Shivani Verma, Jennifer E Liu, Kevin C Oeffinger, Richard M Steingart, Clifford A Hudis, Chau T Dang
PURPOSE: Trastuzumab improves overall survival for women with HER2-positive breast cancer but is associated with cardiotoxicity, especially when administered after anthracyclines. Use of non-anthracycline trastuzumab-based regimens is rising, particularly for patients with low-risk disease or with multiple cardiovascular risk factors. We performed a single-center retrospective cohort study to assess the cardiac safety of trastuzumab without anthracyclines outside of a clinical trial setting...
July 14, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28707096/-medical-quality-standards-for-selected-urological-aids-and-devices-consensus-for-patients-with-neurogenic-urinary-bladder-dysfunction
#18
J Bremer, B Domurath, R Böthig, A Kaufmann, V Geng
BACKGROUND: Using the CE mark of therapeutic appliances is, on its own, not sufficient enough for their appropriate and effective application. In order to treat the patient successfully, not jeopardizing the success of the treatment, medical quality criteria for therapeutic appliances care are necessary to acceptably compensate for a patient's disabilities. OBJECTIVES: Medical quality criteria are formulated for the most frequently used urological aids and devices, considering hygienic requirements, international literature and the practical experience of physicians and nurses with regard to the care of patients with neurogenic urinary bladder dysfunction...
July 13, 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28707043/leadless-pacing-current-state-and-future-direction
#19
REVIEW
Matthias Merkel, Philipp Grotherr, Andrea Radzewitz, Claus Schmitt
Leadless pacing is now an established alternative to conventional pacing with subcutaneous pocket and transvenous lead for patients with class I or II single-chamber pacing indication. Available 12-month follow-up data shows a 48% fewer major complication rate in patients with Micra™ compared to a historical control group in a nonrandomized study [1]. There is one system with Food and Drug Administration (FDA) approval and two with the Communauté Européenne (CE) mark. The OPS code for the implantation is 8-83d...
July 13, 2017: Cardiology and Therapy
https://www.readbyqxmd.com/read/28700716/improved-high-sensitivity-screen-for-huntington-disease-using-a-one-step-triplet-primed-pcr-and-melting-curve-assay
#20
Mingjue Zhao, Felicia S H Cheah, Min Chen, Caroline G Lee, Hai-Yang Law, Samuel S Chong
Molecular diagnosis of Huntington disease (HD) is currently performed by fluorescent repeat-flanking or triplet-primed PCR (TP-PCR) with capillary electrophoresis (CE). However, CE requires multiple post-PCR steps and may result in high cost in high-throughput settings. We previously described a cost-effective single-step molecular screening strategy employing the use of melting curve analysis (MCA). However, because it relies on repeat-flanking PCR, its efficiency in detecting expansion mutations decreases with increasing size of the repeat, which could lead to false-negative results...
2017: PloS One
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