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https://www.readbyqxmd.com/read/27911429/-iridal-lymphoma-clinical-case
#1
S V Saakyan, E B Myakoshina
This is a case report of rare iridal involvement in intraocular lymphoma confirmed by the full range of diagnostic measures, including ultrasound biomicroscopy, optical coherence tomography of the anterior segment of the eye, iridectomy with biopsy and further cytological and histopathological examination of the obtained material.
2016: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/27911419/methods-of-soil-resampling-to-monitor-changes-in-the-chemical-concentrations-of-forest-soils
#2
Gregory B Lawrence, Ivan J Fernandez, Paul W Hazlett, Scott W Bailey, Donald S Ross, Thomas R Villars, Angelica Quintana, Rock Ouimet, Michael R McHale, Chris E Johnson, Russell D Briggs, Robert A Colter, Jason Siemion, Olivia L Bartlett, Olga Vargas, Michael R Antidormi, Mary M Koppers
Recent soils research has shown that important chemical soil characteristics can change in less than a decade, often the result of broad environmental changes. Repeated sampling to monitor these changes in forest soils is a relatively new practice that is not well documented in the literature and has only recently been broadly embraced by the scientific community. The objective of this protocol is therefore to synthesize the latest information on methods of soil resampling in a format that can be used to design and implement a soil monitoring program...
November 25, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911218/aberrant-t-cell-immunity-triggered-by-human-respiratory-syncytial-virus-and-human-metapneumovirus-infection
#3
Andrea E González, Margarita K Lay, Evelyn L Jara, Janyra A Espinoza, Roberto S Gómez, Jorge Soto, Claudia A Rivera, Katia Abarca, Susan M Bueno, Claudia A Riedel, Alexis M Kalergis
Human Respiratory syncytial virus (hRSV) and human metapneumovirus (hMPV) are the two major etiological viral agents of lower respiratory tract diseases, affecting mainly infants, young children and the elderly. Although the infection of both viruses trigger an antiviral immune response that mediate viral clearance and disease resolution in immunocompetent individuals, the promotion of long-term immunity appears to be deficient and reinfection are common throughout life. A possible explanation for this phenomenon is that hRSV and hMPV, can induce aberrant T cell responses, which leads to exacerbated lung inflammation and poor T and B cell memory immunity...
December 2, 2016: Virulence
https://www.readbyqxmd.com/read/27911098/siga-deficiency-in-individual-small-airways-is-associated-with-persistent-inflammation-and-remodeling
#4
Vasiliy V Polosukhin, Bradley W Richmond, Rui-Hong Du, Justin M Cates, Pingsheng Wu, Hui Nian, Pierre P Massion, Lorraine B Ware, Jae Woo Lee, Alexey V Kononov, William E Lawson, Timothy S Blackwell
RATIONALE: Maintenance of a surface immune barrier is important for homeostasis in organs with mucosal surfaces that interface with the external environment; however, the role of the mucosal immune system in chronic lung diseases is incompletely understood. OBJECTIVES: We examined the relationship between secretory immunoglobulin A (SIgA) on the mucosal surface of small airways and parameters of inflammation and airway wall remodeling in chronic obstructive pulmonary disease (COPD)...
December 2, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27911041/impact-of-rabies-vaccination-history-on-attainment-of-an-adequate-antibody-titre-among-dogs-tested-for-international-travel-certification-israel-2010-2014
#5
B Yakobson, N Taylor, N Dveres, S Rotblat, Ż Spero, E W Lankau, J Maki
Rabies is endemic in wildlife or domestic carnivore populations globally. Infection of domestic dogs is of particular concern in many areas. In regions where domestic animals are at risk of exposure to rabies virus, dogs should be routinely vaccinated against rabies to protect both pet and human populations. Many countries require demonstration of an adequate level of serum rabies neutralizing antibodies to permit entry of dogs during international travel. We analysed rabies titres of dogs seeking travel certification in Israel to assess demographic and vaccine history factors associated with antibody titres below the acceptable threshold for travel certification...
December 2, 2016: Zoonoses and Public Health
https://www.readbyqxmd.com/read/27910972/a-liver-microphysiological-system-of-tumor-cell-dormancy-and-inflammatory-responsiveness-is-affected-by-scaffold-properties
#6
A M Clark, S E Wheeler, C L Young, L Stockdale, J Shepard Neiman, W Zhao, D B Stolz, R Venkataramanan, D Lauffenburger, L Griffith, A Wells
Distant metastasis is the major cause of breast cancer-related mortality, commonly emerging clinically after 5 or more years of seeming 'cure' of the primary tumor, indicating a quiescent dormancy. The lack of relevant accessible model systems for metastasis that recreate this latent stage has hindered our understanding of the molecular basis and the development of therapies against these lethal outgrowths. We previously reported on the development of an all-human 3D ex vivo hepatic microphysiological system that reproduces several features of liver physiology and enables spontaneous dormancy in a subpopulation of breast cancer cells...
December 2, 2016: Lab on a Chip
https://www.readbyqxmd.com/read/27910971/synthesis-engineering-of-iron-oxide-raspberry-shaped-nanostructures
#7
O Gerber, B P Pichon, D Ihiawakrim, I Florea, S Moldovan, O Ersen, D Begin, J-M Grenèche, S Lemonnier, E Barraud, S Begin-Colin
Magnetic porous nanostructures consisting of oriented aggregates of iron oxide nanocrystals display very interesting properties such as a lower oxidation state of magnetite, and enhanced saturation magnetization in comparison with individual nanoparticles of similar sizes and porosity. However, the formation mechanism of these promising nanostructures is not well understood, which hampers the fine tuning of their magnetic properties, for instance by doping them with other elements. Therefore the formation mechanism of porous raspberry shaped nanostructures (RSNs) synthesized by a one-pot polyol solvothermal method has been investigated in detail from the early stages by using a wide panel of characterization techniques, and especially by performing original in situ HR-TEM studies in temperature...
December 2, 2016: Nanoscale
https://www.readbyqxmd.com/read/27910758/antimicrobial-coumarins-from-the-oyster-culinary-medicinal-mushroom-pleurotus-ostreatus-agaricomycetes-from-kenya
#8
Lilechi D Baraza, Wekesa Neser, Korir Cheruiyot Jackson, Juma B Fredrick, Ochieno Dennis, Kamau R Wairimu, Aggrey Osogo Keya, Matthias Heydenreich
Pleurotus ostreatus has been widely used as food because of its nutritional and medicinal properties. These have been attributed to the presence of macronutrients, minerals, vitamins, and amino acids, among other secondary metabolites. There are, however, few reports on the antimicrobial activities of different classes of purified compounds from P. ostreatus. This led to the current study, the objective of which was to chemically characterize the antibiotic activities of P. ostreatus against selected human pathogenic bacteria and endophytic fungi...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27910696/a-new-setup-for-localized-implantation-and-live-characterization-of-kev-energy-multiply-charged-ions-at-the-nanoscale
#9
S Guillous, C Bourin, B Ban D'Etat, A Benyagoub, A Cassimi, C Feierstein, E Gardés, E Giglio, S Girard, C Grygiel, A Houel, H Lebius, A Méry, I Monnet, J-M Ramillon, J Rangama, F Ropars, E Verzeroli, M Viteau, A Delobbe
An innovative experimental setup, PELIICAEN, allowing the modification of materials and the study of the effects induced by multiply charged ion beams at the nanoscale is presented. This ultra-high vacuum (below 5 × 10(-10) mbar) apparatus is equipped with a focused ion beam column using multiply charged ions and a scanning electron microscope developed by Orsay Physics, as well as a scanning probe microscope. The dual beam approach coupled to the scanning probe microscope achieves nanometer scale in situ topological analysis of the surface modifications induced by the ion beams...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910694/mhd-marking-using-the-mse-polarimeter-optics-in-ilw-jet-plasmas
#10
S Reyes Cortes, B Alper, D Alves, M Baruzzo, J Bernardo, P Buratti, R Coelho, C Challis, I Chapman, N Hawkes, T C Hender, J Hobirk, E Joffrin
In this communication we propose a novel diagnostic technique, which uses the collection optics of the JET Motional Stark Effect (MSE) diagnostic, to perform polarimetry marking of observed MHD in high temperature plasma regimes. To introduce the technique, first we will present measurements of the coherence between MSE polarimeter, electron cyclotron emission, and Mirnov coil signals aiming to show the feasibility of the method. The next step consists of measuring the amplitude fluctuation of the raw MSE polarimeter signals, for each MSE channel, following carefully the MHD frequency on Mirnov coil data spectrograms...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910608/x-ray-transport-and-radiation-response-assessment-xtrra-experiments-at-the-national-ignition-facility
#11
K B Fournier, C G Brown, M F Yeoman, J H Fisher, S W Seiler, D Hinshelwood, S Compton, F R Holdener, G E Kemp, C D Newlander, R P Gilliam, N Froula, M Lilly, J F Davis, Maj A Lerch, B E Blue
Our team has developed an experimental platform to evaluate the x-ray-generated stress and impulse in materials. Experimental activities include x-ray source development, design of the sample mounting hardware and sensors interfaced to the National Ignition Facility's diagnostics insertion system, and system integration into the facility. This paper focuses on the X-ray Transport and Radiation Response Assessment (XTRRA) test cassettes built for these experiments. The test cassette is designed to position six samples at three predetermined distances from the source, each known to within ±1% accuracy...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910592/structured-photocathodes-for-improved-high-energy-x-ray-efficiency-in-streak-cameras
#12
Y P Opachich, P M Bell, D K Bradley, N Chen, J Feng, A Gopal, B Hatch, T J Hilsabeck, E Huffman, J A Koch, O L Landen, A G MacPhee, S R Nagel, S Udin
We have designed and fabricated a structured streak camera photocathode to provide enhanced efficiency for high energy X-rays (1-12 keV). This gold coated photocathode was tested in a streak camera and compared side by side against a conventional flat thin film photocathode. Results show that the measured electron yield enhancement at energies ranging from 1 to 10 keV scales well with predictions, and that the total enhancement can be more than 3×. The spatial resolution of the streak camera does not show degradation in the structured region...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910564/high-resolution-x-ray-thomson-scattering-measurements-from-cryogenic-hydrogen-jets-using-the-linac-coherent-light-source
#13
L B Fletcher, U Zastrau, E Galtier, E J Gamboa, S Goede, W Schumaker, A Ravasio, M Gauthier, M J MacDonald, Z Chen, E Granados, H J Lee, A Fry, J B Kim, C Roedel, R Mishra, A Pelka, D Kraus, B Barbrel, T Döppner, S H Glenzer
We present the first spectrally resolved measurements of x-rays scattered from cryogenic hydrogen jets in the single photon counting limit. The 120 Hz capabilities of the LCLS, together with a novel hydrogen jet design [J. B. Kim et al., Rev. Sci. Instrum. (these proceedings)], allow for the ability to record a near background free spectrum. Such high-dynamic-range x-ray scattering measurements enable a platform to study ultra-fast, laser-driven, heating dynamics of hydrogen plasmas. This measurement has been achieved using two highly annealed pyrolytic graphite crystal spectrometers to spectrally resolve 5...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910557/a-storage-ring-experiment-to-detect-a-proton-electric-dipole-moment
#14
V Anastassopoulos, S Andrianov, R Baartman, S Baessler, M Bai, J Benante, M Berz, M Blaskiewicz, T Bowcock, K Brown, B Casey, M Conte, J D Crnkovic, N D'Imperio, G Fanourakis, A Fedotov, P Fierlinger, W Fischer, M O Gaisser, Y Giomataris, M Grosse-Perdekamp, G Guidoboni, S Hacıömeroğlu, G Hoffstaetter, H Huang, M Incagli, A Ivanov, D Kawall, Y I Kim, B King, I A Koop, D M Lazarus, V Lebedev, M J Lee, S Lee, Y H Lee, A Lehrach, P Lenisa, P Levi Sandri, A U Luccio, A Lyapin, W MacKay, R Maier, K Makino, N Malitsky, W J Marciano, W Meng, F Meot, E M Metodiev, L Miceli, D Moricciani, W M Morse, S Nagaitsev, S K Nayak, Y F Orlov, C S Ozben, S T Park, A Pesce, E Petrakou, P Pile, B Podobedov, V Polychronakos, J Pretz, V Ptitsyn, E Ramberg, D Raparia, F Rathmann, S Rescia, T Roser, H Kamal Sayed, Y K Semertzidis, Y Senichev, A Sidorin, A Silenko, N Simos, A Stahl, E J Stephenson, H Ströher, M J Syphers, J Talman, R M Talman, V Tishchenko, C Touramanis, N Tsoupas, G Venanzoni, K Vetter, S Vlassis, E Won, G Zavattini, A Zelenski, K Zioutas
A new experiment is described to detect a permanent electric dipole moment of the proton with a sensitivity of 10(-29) e ⋅ cm by using polarized "magic" momentum 0.7 GeV/c protons in an all-electric storage ring. Systematic errors relevant to the experiment are discussed and techniques to address them are presented. The measurement is sensitive to new physics beyond the standard model at the scale of 3000 TeV.
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910555/unraveling-wall-conditioning-effects-on-plasma-facing-components-in-nstx-u-with-the-materials-analysis-particle-probe-mapp
#15
F Bedoya, J P Allain, R Kaita, C H Skinner, L Buzi, B E Koel
A novel Plasma Facing Components (PFCs) diagnostic, the Materials Analysis Particle Probe (MAPP), has been recently commissioned in the National Spherical Torus Experiment Upgrade (NSTX-U). MAPP is currently monitoring the chemical evolution of the PFCs in the NSTX-U lower divertor at 107 cm from the tokamak axis on a day-to-day basis. In this work, we summarize the methodology that was adopted to obtain qualitative and quantitative descriptions of the samples chemistry. Using this methodology, we were able to describe all the features in all our spectra to within a standard deviation of ±0...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910532/improving-the-off-axis-spatial-resolution-and-dynamic-range-of-the-nif-x-ray-streak-cameras-invited
#16
A G MacPhee, A K L Dymoke-Bradshaw, J D Hares, J Hassett, B W Hatch, A L Meadowcroft, P M Bell, D K Bradley, P S Datte, O L Landen, N E Palmer, K W Piston, V V Rekow, T J Hilsabeck, J D Kilkenny
We report simulations and experiments that demonstrate an increase in spatial resolution of the NIF core diagnostic x-ray streak cameras by at least a factor of two, especially off axis. A design was achieved by using a corrector electron optic to flatten the field curvature at the detector plane and corroborated by measurement. In addition, particle in cell simulations were performed to identify the regions in the streak camera that contribute the most to space charge blurring. These simulations provide a tool for convolving synthetic pre-shot spectra with the instrument function so signal levels can be set to maximize dynamic range for the relevant part of the streak record...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910524/spatially-resolved-thomson-scattering-measurements-of-the-transition-from-the-collective-to-the-non-collective-regime-in-a-laser-produced-plasma
#17
D B Schaeffer, C G Constantin, A S Bondarenko, E T Everson, C Niemann
We present optical Thomson scattering results that image for the first time in a single measurement the spatial transition from collective to non-collective scattering. Data were taken in the Phoenix laser laboratory at the University of California, Los Angeles. The Raptor laser was used to ablate a carbon plasma, which was diagnosed with the frequency-doubled Phoenix laser serving as a Thomson scattering probe. Scattered light was collected from the laser plasma up to 10 cm from the target surface and up to 10 us after ablation, and imaged with high spatial and spectral resolutions...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910520/publisher-s-note-structured-photocathodes-for-improved-high-energy-x-ray-efficiency-in-streak-cameras-rev-sci-instrum-87-11e331-2016
#18
Y P Opachich, P M Bell, D K Bradley, N Chen, J Feng, A Gopal, B Hatch, T J Hilsabeck, E Huffman, J A Koch, O L Landen, A G MacPhee, S R Nagel, S Udin
No abstract text is available yet for this article.
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910491/measurement-of-high-dynamic-range-x-ray-thomson-scattering-spectra-for-the-characterization-of-nano-plasmas-at-lcls
#19
M J MacDonald, T Gorkhover, B Bachmann, M Bucher, S Carron, R N Coffee, R P Drake, K R Ferguson, L B Fletcher, E J Gamboa, S H Glenzer, S Göde, S P Hau-Riege, D Kraus, J Krzywinski, A L Levitan, K-H Meiwes-Broer, C P O'Grady, T Osipov, T Pardini, C Peltz, S Skruszewicz, M Swiggers, C Bostedt, T Fennel, T Döppner
Atomic clusters can serve as ideal model systems for exploring ultrafast (∼100 fs) laser-driven ionization dynamics of dense matter on the nanometer scale. Resonant absorption of optical laser pulses enables heating to temperatures on the order of 1 keV at near solid density conditions. To date, direct probing of transient states of such nano-plasmas was limited to coherent x-ray imaging. Here we present the first measurement of spectrally resolved incoherent x-ray scattering from clusters, enabling measurements of transient temperature, densities, and ionization...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910478/measurement-of-turbulent-electron-temperature-fluctuations-on-the-asdex-upgrade-tokamak-using-correlated-electron-cyclotron-emission
#20
S J Freethy, G D Conway, I Classen, A J Creely, T Happel, A Köhn, B Vanovac, A E White
Turbulent temperature fluctuations are measured on the ASDEX Upgrade tokamak using pairs of closely spaced, narrow-band heterodyne radiometer channels and a standard correlation technique. The pre-detection spacing and bandwidth of the radiometer channel pairs is chosen such that they are physically separated less than a turbulent correlation length, but do not overlap. The radiometer has 4 fixed filter frequency channels and two tunable filter channels for added flexibility in the measurement position. Relative temperature fluctuation amplitudes are observed in a helium plasma to be δT/T = (0...
November 2016: Review of Scientific Instruments
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