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https://www.readbyqxmd.com/read/29774235/the-redox-filter-beneath-magmatic-orogens-and-the-formation-of-continental-crust
#1
Ming Tang, Monica Erdman, Graham Eldridge, Cin-Ty A Lee
The two most important magmatic differentiation series on Earth are the Fe-enriching tholeiitic series, which dominates the oceanic crust and island arcs, and the Fe-depleting calc-alkaline series, which dominates the continental crust and continental arcs. It is well known that calc-alkaline magmas are more oxidized when they erupt and are preferentially found in regions of thick crust, but why these quantities should be related remains unexplained. We use the redox-sensitive behavior of europium (Eu) in deep-seated, plagioclase-free arc cumulates to directly constrain the redox evolution of arc magmas at depth...
May 2018: Science Advances
https://www.readbyqxmd.com/read/29773825/consistent-prediction-of-go-protein-localization
#2
Flavio E Spetale, Debora Arce, Flavia Krsticevic, Pilar Bulacio, Elizabeth Tapia
The GO-Cellular Component (GO-CC) ontology provides a controlled vocabulary for the consistent description of the subcellular compartments or macromolecular complexes where proteins may act. Current machine learning-based methods used for the automated GO-CC annotation of proteins suffer from the inconsistency of individual GO-CC term predictions. Here, we present FGGA-CC+ , a class of hierarchical graph-based classifiers for the consistent GO-CC annotation of protein coding genes at the subcellular compartment or macromolecular complex levels...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773618/draft-genome-sequence-of-mariprofundus-micogutta-strain-et2
#3
Hiroko Makita, Shinro Nishi, Yoshihiro Takaki, Emiko Tanaka, Takuro Nunoura, Satoshi Mitsunobu, Ken Takai
Mariprofundus micogutta strain ET2 was isolated in 2014 from a deep-sea hydrothermal field on the Bayonnaise Knoll of the Izu-Ogasawara arc. Here, we report its draft genome, which comprises 2,497,805 bp and contains 2,417 predicted coding sequences.
May 17, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29773466/in-vivo-morphologic-comparison-of-saphenous-vein-grafts-and-native-coronary-arteries-following-non-st-elevation-myocardial-infarction
#4
Tom Hsun-Wei Huang, Kalpa De Silva, Usaid K Allahwala, Edward J Danson, Pasi K Karjalainen, Olli A Kajander, Ravinay Bhindi
OBJECTIVE: This study aimed to assess the pathophysiological differences between saphenous vein grafts (SVG) and native coronary arteries (NCA) following presentation with non-ST elevated myocardial infarction (NSTEMI). BACKGROUND: There is accelerated pathogenesis of de novo coronary disease in harvested SVG following coronary artery bypass (CABG) surgery, which contributes to both early and late graft failure, and is also causal in adverse outcomes following vein graft PCI...
April 16, 2018: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29772708/microstructure-evolution-and-mechanical-behavior-of-2219-aluminum-alloys-additively-fabricated-by-the-cold-metal-transfer-process
#5
Xuewei Fang, Lijuan Zhang, Hui Li, Chaolong Li, Ke Huang, Bingheng Lu
In this research, four different welding arc modes including conventional cold metal transfer (CMT), CMT-Pulse (CMT-P), CMT-Advanced (CMT-ADV), and CMT pulse advanced (CMT-PADV) were used to deposit 2219-Al wire. The effects of different arc modes on porosity, pore size distribution, microstructure evolution, and mechanical properties were thoroughly investigated. The statistical analysis of the porosity and its size distribution indicated that the CMT-PADV process gave the smallest pore area percentage and pore aspect ratio, and had almost no larger pores...
May 16, 2018: Materials
https://www.readbyqxmd.com/read/29772653/fast-and-cost-effective-synthesis-of-high-quality-graphene-on-copper-foils-using-high-current-arc-evaporation
#6
Helge Lux, Matthias Edling, Peter Siemroth, Sigurd Schrader
In this paper, we present an innovative and ultra-fast process for the deposition of high-quality graphene on different metal foils and thin metal films. The graphene layer can be homogeneously deposited in only 30 s process time. Due to the weak adhesion to the substrate material, the monolayer graphene is easy to transfer using the established processes. For the production, we use magnetic filtered high-current arc evaporation (Φ-HCA) with a solid, graphitic carbon source. This ultra-fast growth process can pave the way towards a cost-effective graphene synthesis for the mass production e...
May 16, 2018: Materials
https://www.readbyqxmd.com/read/29771454/isolation-and-total-structure-determination-of-an-all-alkynyl-protected-gold-nanocluster-au144
#7
Zhen Lei, Jiao-Jiao Li, Xian-Kai Wan, Wen-Han Zhang, Quan-Ming Wang
otal structure determination of a ligand-protected gold nanocluster Au144 has been successfully carried out. The title nanocluster has the composition of Au144(C≡CAr)60 (1, Ar = 2-F-C6H4-). Cluster 1 exhibits a quasi-spherical Russian doll-like architecture, comprising a Au54 two-shelled Mackay icosahedron (Au12@Au42), which is further enclosed by a Au60 anti-Mackay icosahedral shell. The Au114 kernel is wrapped by thirty linear ArC≡C-Au-C≡CAr staple motifs. Absorption spectrum of 1 shows two bands at 560 and 620 nm, which is distinctly different from that of thiolated Au144, which was predicted to have an almost identical metal kernel and very similar ligands arrangement in 1...
May 17, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29770850/ultrasound-measurements-of-axillary-recess-capsule-thickness-in-unilateral-frozen-shoulder-study-of-correlation-with-mri-measurements
#8
Du Hwan Kim, Chul-Hyun Cho, Duk Hyun Sung
OBJECTIVE: The aims of this study were to compare the ultrasound thickness of the affected axillary recess capsule (ARC) with that of the unaffected ARC in patients with frozen shoulder (FS), to analyze whether the ultrasound measurements of the ARC thickness correlate with those obtained using MRI, and to assess whether the ultrasound thickness of the ARC correlates with the patterns of range of motion limitation. MATERIALS AND METHODS: Forty-four patients with clinically diagnosed unilateral FS and MRI evaluation performed ultrasound measurement of ARC...
May 16, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29769101/a-new-strategy-for-volumetric-modulated-arc-therapy-planning-using-autoplanning-based-multicriteria-optimization-for-nasopharyngeal-carcinoma
#9
Juanqi Wang, Zhi Chen, Weiwei Li, Wei Qian, Xiaosheng Wang, Weigang Hu
BACKGROUND: A new strategy for making the appropriate choice of the representative optimization parameters in planning processes and accurate selection criteria during Pareto surface navigation for general multicriteria optimization (MCO) was recommended in the study. The purpose was to combine both benefits of AutoPlanning optimization and MCO (APMCO) for achieving an individual volumetric-modulated arc therapy (VMAT) plan according to the clinically achieved patient-specific tradeoff among conflicting priorities...
May 16, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29765265/is-volumetric-modulated-arc-therapy-with-constant-dose-rate-a-valid-option-in-radiation-therapy-for-head-and-neck-cancer-patients
#10
Annamaria Didona, Valentina Lancellotta, Claudio Zucchetti, Bianca Moira Panizza, Alessandro Frattegiani, Martina Iacco, Anna Concetta Di Pilato, Simonetta Saldi, Cynthia Aristei
Background: Intensity-modulated radiotherapy (IMRT) improves dose distribution in head and neck (HN) radiation therapy. Volumetric-modulated arc therapy (VMAT), a new form of IMRT, delivers radiation in single or multiple arcs, varying dose rates (VDR-VMAT) and gantry speeds, has gained considerable attention. Constant dose rate VMAT (CDR-VMAT) associated with a fixed gantry speed does not require a dedicated linear accelerator like VDR-VMAT. The present study explored the feasibility, efficiency and delivery accuracy of CDR-VMAT, by comparing it with IMRT and VDR-VMAT in treatment planning for HN cancer...
May 2018: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/29764549/-clinical-verification-of-vancomycin-population-pharmacokinetics-in-patients-with-augmented-renal-clearance
#11
Haodi Lu, Lian Tang, Shengmin Xue, Zhiwei Zhuang, Jie Fang, Fuli Zhao, Erning Shang
OBJECTIVE: To evaluate the predictive value and to verify the clinical effect of JPKD-vancomycin for the trough concentration of vancomycin in patients with augmented renal clearance (ARC), and to provide a reference for clinical individualized drug therapy. METHODS: A retrospective analysis was conducted. The clinical data of 48 adult patients with ARC using vancomycin and monitoring steady-state trough concentration of vancomycin admitted to Suzhou Hospital Affiliated to Nanjing Medical University from July 2013 to July 2017 were collected...
May 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29764450/evaluation-of-target-dose-inhomogeneity-in-breast-cancer-treatment-due-to-tissue-elemental-differences
#12
A Fogliata, F De Rose, A Stravato, G Reggiori, S Tomatis, M Scorsetti, L Cozzi
BACKGROUND: Monte Carlo simulations were run to estimate the dose variations generated by thedifference arising from the chemical composition of the tissues. METHODS: CT datasets of five breast cancer patients were selected. Mammary gland was delineated as clinical target volume CTV, as well as CTV_lob and CTV_fat, being the lobular and fat fractions of the entire mammary gland. Patients were planned for volumetric modulated arc therapy technique, optimized in the Varian Eclipse treatment planning system...
May 15, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29762886/automatic-m1-so-montage-headgear-for-transcranial-direct-current-stimulation-tdcs-suitable-for-home-and-high-throughput-in-clinic-applications
#13
Helena Knotkova, Alexa Riggs, Destiny Berisha, Helen Borges, Henry Bernstein, Vaishali Patel, Dennis Q Truong, Gozde Unal, Denis Arce, Abhishek Datta, Marom Bikson
OBJECTIVES: Non-invasive transcranial direct current stimulation (tDCS) over the motor cortex is broadly investigated to modulate functional outcomes such as motor function, sleep characteristics, or pain. The most common montages that use two large electrodes (25-35 cm2 ) placed over the area of motor cortex and contralateral supraorbital region (M1-SO montages) require precise measurements, usually using the 10-20 EEG system, which is cumbersome in clinics and not suitable for applications by patients at home...
May 15, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29762496/arc-discharges-of-a-pure-carbon-strip-affected-by-dynamic-contact-force-during-current-carrying-sliding
#14
Yanyan Zhang, Yongzhen Zhang, Chenfei Song
Arc discharges of a pure carbon strip induced by dynamic contact force were studied on a pin-on-disk tribometer. It was found that arc discharges were produced periodically in accordance with the period of the dynamic contact force. The arcing rate of the pure carbon strip increased with an increase of frequency f and amplitude B , which led to a decrease of current-carrying quality. These influences at high velocities became much more significant. A critical point of the arcing rate at around 2% was detected...
May 15, 2018: Materials
https://www.readbyqxmd.com/read/29762448/pectoralis-major-musculocutaneous-flap-with-a-midline-sternal-skin-paddle-for-head-and-neck-reconstruction-a-new-design
#15
Jeongseok Oh, Hee Chang Ahn, Seungki Youn, Kyung Tae
PURPOSE: The pectoralis major musculocutaneous (PMMC) flap is a classic flap for head and neck reconstruction, relatively unpopular with the advancement of microsurgery and free flaps. The classic parasternal paddle design provided a thick flap with a small rotation arch leaving objectionable scarring. Our new symmetric midsternal design overcomes these problems. METHODS: Chart review was done from the years 2000 to 2017. Flap skin paddle was placed symmetrically on both sides of the midsternal line...
May 14, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29761994/-study-on-precise-localization-of-intraoperative-matrix-electrode
#16
Tao Jiang, Huan Hu, Qionglin Fu, Hongmin Bai
In order to accurately localize the image coordinates and serial numbers of intraoperative subdural matrix electrodes, a matrix electrode localization algorithm for image processing is proposed in this paper. Firstly, by using point-by-point extended electrode location algorithm, the electrode is expanded point-by-point vertically and horizontally, and the initial coordinates and serial numbers of each electrode are determined. Secondly, the single electrode coordinate region extraction algorithm is used to determine the best coordinates of each electrode, so that the image coordinates and serial numbers of all electrodes are determined point-by-point...
December 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29761987/-comparison-of-planning-quality-and-delivery-efficiency-between-volumetric-modulated-arc-therapy-and-dynamic-intensity-modulated-radiation-therapy-for-nasopharyngeal-carcinoma-with-more-than-4-prescribed-dose-levels
#17
Pengfei Jia, Jun Xu, Xiaoxi Zhou, Jian Chen, Lemin Tang
The aim of this study is to compare the planning quality and delivery efficiency between dynamic intensity modulated radiation therapy (d-IMRT) and dual arc volumetric modulated arc therapy (VMAT) systematically for nasopharyngeal carcinoma (NPC) patients with multi-prescribed dose levels, and to analyze the correlations between target volumes and plan qualities. A total of 20 patients of NPC with 4-5 prescribed dose levels to achieve simultaneous integrated boost (SIB) treated by sliding window d-IMRT in our department from 2014 to 2015 were re-planned with dual arc VMAT...
December 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29761815/probing-the-tricationic-ionic-liquid-vacuum-interface-insights-from-molecular-dynamics-simulations
#18
Elaheh Sedghamiz, Majid Moosavi
The surface properties of three symmetric linear tricationic ionic liquids (LTILs) with the common anion, bis(trifluoromethylsulfonyl)imide ([NTf2]-), were studied using atomistic molecular dynamics simulation and identification of the truly interfacial molecules (ITIM) analysis. A refined version of the CL&P force field with the partial charges based on quantum calculations for isolated ion quartets was used to calculate the number densities, orientation of the cations, charge densities and surface tensions...
May 15, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29761791/selective-synthesis-of-turbostratic-polyhedral-carbon-nano-onions-by-arc-discharge-in-water
#19
Francesca Alessandro, Andrea Scarcello, Marlon Danilo Basantes Valverde, Diana Coello-Fiallos, Salih Mohamed Osman, Anna Cupolillo, Melvin Arias, Olimpia Arias de Fuentes, Giorgio De Luca, Alfredo Aloise, Efrem Curcio, Giuseppe Nicotra, Corrado Spinella, Lorenzo S Caputi
Carbon nano-onions (CNOs), in their spherical or polyhedral forms, represent an important class of nanomaterials, due to their peculiar physical and electrochemical properties. Among the different methods of production, arc discharge between graphite electrodes sustained by deionized water is one of the most promising to obtain good quality CNOs in gram quantities. We applied the method with the aim to optimize the production of CNOs, using an innovative experimental arrangement. The discharges generate dispersed nanomaterials and a black hard cathodic deposit, which were studied by TEM, Raman and TGA...
May 15, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29760988/intra-class-variability-in-diffuse-reflectance-spectroscopy-application-to-porcine-adipose-tissue
#20
Félix Fanjul-Vélez, Laura Arévalo-Díaz, José L Arce-Diego
Optical diffuse reflectance spectroscopy (DRS) has great potential in the study, diagnosis, and discrimination of biological tissues. Discrimination is based on massive measurements that conform training sets. These sets are then used to classify tissues according to the biomedical application. Classification accuracy depends strongly on the training dataset, which typically comes from different samples of the same class, and from different points of the same sample. The variability of these measurements is not usually considered and is assumed to be purely random, although it could greatly influence the results...
May 1, 2018: Biomedical Optics Express
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