keyword
MENU ▼
Read by QxMD icon Read
search

MIE

keyword
https://www.readbyqxmd.com/read/28437896/variability-of-apparent-and-inherent-optical-properties-of-sediment-laden-waters-in-large-river-basins-lessons-from-in-situ-measurements-and-bio-optical-modeling
#1
Sylvain Pinet, Jean-Michel Martinez, Sylvain Ouillon, Bruno Lartiges, Raul Espinoza Villar
We investigated the relationships between inherent and apparent optical properties (IOP and AOP, respectively) and suspended sediment concentrations (SSC) in the main Amazonian river waters. In situ measurements of SSC, remote sensing reflectance (R<sub>rs</sub>), the diffuse light attenuation coefficient (K<sub>d</sub>) and the total and non-algal particle (NAP) absorption coefficients (a<sub>TOT</sub> and a<sub>NAP</sub>, respectively) were conducted during three sampling trips along different streams of the Amazon River catchment (104 stations)...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28434331/disruption-of-blood-nerve-barriers-in-hereditary-transthyretin-attr-amyloidosis
#2
Haruki Koike, Shohei Ikeda, Mie Takahashi, Yuichi Kawagashira, Masahiro Iijima, Yohei Misumi, Yukio Ando, Shu-Ichi Ikeda, Masahisa Katsuno, Gen Sobue
No abstract text is available yet for this article.
March 2017: Amyloid: the International Journal of Experimental and Clinical Investigation
https://www.readbyqxmd.com/read/28430257/optical-pressure-and-numerical-simulation-of-optical-forces
#3
Olav Gaute Hellesø
Optical forces on a particle can be calculated using numerical methods and by integrating the Maxwell stress tensor over the surface of the particle. It is shown that this gives considerable numerical noise for the radiation force on particles with refractive index close to that of the surrounding medium and that a large number of mesh elements are necessary. It is found preferable to calculate the force from the local optical pressure, as this gives considerably less noise and requires significantly fewer mesh elements...
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28430218/scattering-of-one-dimensional-airy-beam-light-sheet-with-finite-energy-by-a-sphere
#4
Zhaolou Cao, Chunjie Zhai
A one-dimensional Airy beam light sheet has the advantage of nondiffraction and self-reconstruction after encountering particles. The angular scattering of an Airy beam by a homogeneous sphere is numerically studied in this paper using Mie theory and a plane-wave spectrum method. The effects of sphere radius, refractive index, beam width, and sphere position on the angular distribution of scattering light are simulated. Correlation coefficients are employed to investigate whether Airy beam scattering can be approximated to be plane-wave scattering for computational efficiency...
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28430088/informatics-for-health-2017-advancing-both-science-and-practice
#5
Philip J Scott, Ronald Cornet, Colin McCowan, Niels Peek, Paolo Fraccaro, Nophar Geifman, Wouter T Gude, William Hulme, Glen P Martin, Richard Williams
INTRODUCTION: The Informatics for Health congress, 24-26 April 2017, in Manchester, UK, brought together the Medical Informatics Europe (MIE) conference and the Farr Institute International Conference. This special issue of the Journal of Innovation in Health Informatics contains 113 presentation abstracts and 149 poster abstracts from the congress. DISCUSSION: The twin programmes of "Big Data" and "Digital Health" are not always joined up by coherent policy and investment priorities...
April 21, 2017: Journal of Innovation in Health Informatics
https://www.readbyqxmd.com/read/28423746/feasibility-of-representing-a-danish-microbiology-model-using-fhir
#6
Mie Vestergaard Andersen, Ida Hvass Kristensen, Malene Møller Larsen, Claus Hougaard Pedersen, Kirstine Rosenbeck Gøeg, Louise B Pape-Haugaard
Achieving interoperability in health is a challenge and requires standardization. The newly developed HL7 standard: Fast Healthcare Interoperability Resources (FHIR) promises both flexibility and interoperability. This study investigates the feasibility of expressing a Danish microbiology message model content in FHIR to explore whether complex in-use legacy models can be migrated and what challenges this may pose. The Danish microbiology message model (the DMM) is used as a case to illustrate challenges and opportunities accosted with applying the FHIR standard...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28418844/loss-of-tumour-specific-atm-protein-expression-is-an-independent-prognostic-factor-in-early-resected-nsclc
#7
Lars F Petersen, Alexander C Klimowicz, Shannon Otsuka, Anifat A Elegbede, Stephanie K Petrillo, Tyler Williamson, Chris T Williamson, Mie Konno, Susan P Lees-Miller, Desiree Hao, Don Morris, Anthony M Magliocco, D Gwyn Bebb
Ataxia-telangiectasia mutated (ATM) is critical in maintaining genomic integrity. In response to DNA double-strand breaks, ATM phosphorylates downstream proteins involved in cell-cycle checkpoint arrest, DNA repair, and apoptosis. Here we investigate the frequency, and influence of ATM deficiency on outcome, in early-resected non-small cell lung cancer (NSCLC). Tissue microarrays, containing 165 formalin-fixed, paraffin-embedded resected NSCLC tumours from patients diagnosed at the Tom Baker Cancer Centre, Calgary, Canada, between 2003 and 2006, were analyzed for ATM expression using quantitative fluorescence immunohistochemistry...
March 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418104/is-the-nuclear-refractive-index-lower-than-cytoplasm-validation-of-phase-measurements-and-implications-for-light-scattering-technologies
#8
Zachary A Steelman, Will J Eldridge, Jacob B Weintraub, Adam Wax
The refractive index (RI) of biological materials is a fundamental parameter for the optical characterization of living systems. Numerous light scattering technologies are grounded in a quantitative knowledge of the refractive index at cellular and subcellular scales. Recent work in quantitative phase microscopy (QPM) has called into question the widely held assumption that the index of the cell nucleus is greater than that of the cytoplasm, a result which disagrees with much of the current literature. In this work, we critically examine the measurement of the nuclear and whole-cell refractive index using QPM, validating that nuclear refractive index is lower than that of cytoplasm in four diverse cell lines and their corresponding isolated nuclei...
April 18, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28417001/minimally-invasive-esophagectomy-for-esophageal-cancer-according-to%C3%A2-the-location-of-the-tumor-experience-of-251-patients
#9
Lei Chen, Xi Liu, Rong Wang, Yuncang Wang, Tao Zhang, Dewei Gao, Linggen Gao
BACKGROUND: Minimally invasive esophagectomy (MIE) is increasingly used for the treatment of esophageal cancer. However, the ideal approach of MIE is not yet standardized. We explore the ideal approach of MIE according to the location of the tumor and compare the clinical outcomes between patients with cancer arising in the upper third of the esophagus and those with tumors involving the middle and lower third of the esophagus. METHODS: We included patients with esophageal carcinoma and had clear indications for MIE...
May 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28416817/controlling-propagation-and-coupling-of-waveguide-modes-using-phase-gradient-metasurfaces
#10
Zhaoyi Li, Myoung-Hwan Kim, Cheng Wang, Zhaohong Han, Sajan Shrestha, Adam Christopher Overvig, Ming Lu, Aaron Stein, Anuradha Murthy Agarwal, Marko Lončar, Nanfang Yu
Research on two-dimensional designer optical structures, or metasurfaces, has mainly focused on controlling the wavefronts of light propagating in free space. Here, we show that gradient metasurface structures consisting of phased arrays of plasmonic or dielectric nanoantennas can be used to control guided waves via strong optical scattering at subwavelength intervals. Based on this design principle, we experimentally demonstrate waveguide mode converters, polarization rotators and waveguide devices supporting asymmetric optical power transmission...
April 17, 2017: Nature Nanotechnology
https://www.readbyqxmd.com/read/28413257/tuning-and-locking-the-localized-surface-plasmon-resonances-of-cus-covellite-nanocrystals-by-an-amorphous-cupd-x-s-shell
#11
Yi Xie, Wenhui Chen, Giovanni Bertoni, Ilka Kriegel, Mo Xiong, Neng Li, Mirko Prato, Andreas Riedinger, Ayyappan Sathya, Liberato Manna
We demonstrate the stabilization of the localized surface plasmon resonance (LSPR) in a semiconductor-based core-shell heterostructure made of a plasmonic CuS core embedded in an amorphous-like alloyed CuPd x S shell. This heterostructure is prepared by reacting the as-synthesized CuS nanocrystals (NCs) with Pd(2+) cations at room temperature in the presence of an electron donor (ascorbic acid). The reaction starts from the surface of the CuS NCs and proceeds toward the center, causing reorganization of the initial lattice and amorphization of the covellite structure...
February 28, 2017: Chemistry of Materials: a Publication of the American Chemical Society
https://www.readbyqxmd.com/read/28411154/neural-mechanisms-of-individual-differences-in-temporal-discounting-of-monetary-and-primary-rewards-in-adolescents
#12
Erik de Water, Gabry W Mies, Bernd Figner, Yuliya Yoncheva, Wouter van den Bos, F Xavier Castellanos, Antonius H N Cillessen, Anouk Scheres
Adolescents are generally characterized as impulsive. However, impulsivity is a multi-dimensional construct that involves multiple component processes. Which of these components contribute to adolescent impulsivity is currently unclear. This study focused on the neural mechanisms underlying individual differences in distinct components of temporal discounting (TD), i.e., the preference for smaller immediate rewards over larger delayed rewards. Participants were 58 adolescents (12-16 years-old) who performed an fMRI TD task with both monetary and snack rewards...
April 14, 2017: NeuroImage
https://www.readbyqxmd.com/read/28410251/association-of-need-for-tracheotomy-with-decreasing-mechanical-in-exsufflation-flows-in-amyotrophic-lateral-sclerosis
#13
John R Bach, Neelam Upadhyaya
Although patients with lower motor neuron and myopathic disorders can prolong their lives by depending on continuous noninvasive ventilatory support, most patients with amyotrophic lateral sclerosis (ALS) cannot and must use tracheostomy mechanical ventilation to prolong survival. This case demonstrates that this occurs because amyotrophic lateral sclerosis patients' upper motor neuron reflex laryngeal closure and stridor cause upper airway collapse that renders mechanical insufflation-exsufflation (MIE) ineffective in expulsing airway secretions as well as for permitting continuous noninvasive ventilatory support...
April 13, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28409641/efficient-second-harmonic-generation-in-nanocrystalline-silicon-nanoparticles
#14
Sergey V Makarov, Mihail I Petrov, Urs Zywietz, Valentin Milichko, Dmitry Zuev, Natalia Lopanitsyna, Alexey Kuksin, Ivan Mukhin, George Zograf, Evgeniy Ubyivovk, Daria A Smirnova, Sergey Starikov, Boris N Chichkov, Yuri S Kivshar
Recent trends to employ high-index dielectric particles in nanophotonics are motivated by their reduced dissipative losses and large resonant enhancement of nonlinear effects at the nanoscale. Because silicon is a centrosymmetric material, the studies of nonlinear optical properties of silicon nanoparticles have been targeting primarily the third-harmonic generation effects. Here we demonstrate, both experimentally and theoretically, that resonantly excited nanocrystalline silicon nanoparticles fabricated by an optimized laser printing technique can exhibit strong second-harmonic generation (SHG) effects...
April 24, 2017: Nano Letters
https://www.readbyqxmd.com/read/28409632/resonant-nonplasmonic-nanoparticles-for-efficient-temperature-feedback-optical-heating
#15
George P Zograf, Mihail I Petrov, Dmitry A Zuev, Pavel A Dmitriev, Valentin A Milichko, Sergey V Makarov, Pavel A Belov
We propose a novel photothermal approach based on resonant dielectric nanoparticles, which possess imaginary part of permittivity significantly smaller as compared to metal ones. We show both experimentally and theoretically that a spherical silicon nanoparticle with a magnetic quadrupolar Mie resonance converts light to heat up to 4 times more effectively than similar spherical gold nanoparticle at the same heating conditions. We observe photoinduced temperature raise up to 900 K with the silicon nanoparticle on a glass substrate at moderate intensities (<2 mW/μm(2)) and typical laser wavelength (633 nm)...
April 24, 2017: Nano Letters
https://www.readbyqxmd.com/read/28408175/an-oncofetal-glycosaminoglycan-modification-provides-therapeutic-access-to-cisplatin-resistant-bladder-cancer
#16
Roland Seiler, Htoo Zarni Oo, Davide Tortora, Thomas M Clausen, Chris K Wang, Gunjan Kumar, Marina Ayres Pereira, Maj S Ørum-Madsen, Mette Ø Agerbæk, Tobias Gustavsson, Mie A Nordmaj, Jamie R Rich, Nada Lallous, Ladan Fazli, Sherry S Lee, James Douglas, Tilman Todenhöfer, Shaghayegh Esfandnia, Dulguun Battsogt, John S Babcook, Nader Al-Nakouzi, Simon J Crabb, Igor Moskalev, Bernhard Kiss, Elai Davicioni, George N Thalmann, Paul S Rennie, Peter C Black, Ali Salanti, Mads Daugaard
BACKGROUND: Although cisplatin-based neoadjuvant chemotherapy (NAC) improves survival of unselected patients with muscle-invasive bladder cancer (MIBC), only a minority responds to therapy and chemoresistance remains a major challenge in this disease setting. OBJECTIVE: To investigate the clinical significance of oncofetal chondroitin sulfate (ofCS) glycosaminoglycan chains in cisplatin-resistant MIBC and to evaluate these as targets for second-line therapy. DESIGN, SETTING, AND PARTICIPANTS: An ofCS-binding recombinant VAR2CSA protein derived from the malaria parasite Plasmodium falciparum (rVAR2) was used as an in situ, in vitro, and in vivo ofCS-targeting reagent in cisplatin-resistant MIBC...
April 10, 2017: European Urology
https://www.readbyqxmd.com/read/28405801/urine-exosomes-from-healthy-and-hypertensive-pregnancies-display-elevated-level-of-%C3%AE-subunit-and-cleaved-%C3%AE-and-%C3%AE-subunits-of-the-epithelial-sodium-channel-enac
#17
Maria R Nielsen, Britta Frederiksen-Møller, Rikke Zachar, Jan S Jørgensen, Mie R Hansen, Rikke Ydegaard, Per Svenningsen, Kristian Buhl, Boye L Jensen
Preeclampsia is characterized by hypertension, proteinuria, suppression of plasma renin-angiotensin-aldosterone, and impaired urine sodium excretion. Aberrantly filtered plasmin in urine may activate proteolytically the γ-subunit of the epithelial sodium channel (ENaC) and promote Na(+) reabsorption and urine K(+) loss. Plasma and urine was sampled from patients with preeclampsia, healthy pregnant controls and non-pregnant women, and from patients with nephrostomy catheters. Aldosterone concentration, urine plasminogen, and protein were determined...
April 12, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28402118/ultrafast-plasmon-enhanced-hot-electron-generation-at-ag-nanocluster-graphite-heterojunctions
#18
Shijing Tan, Liming Liu, Yanan Dai, Jindong Ren, Jin Zhao, Hrvoje Petek
Hot electron processes at metallic heterojunctions are central to optical-to-chemical or electrical energy transduction. Ultrafast nonlinear photoexcitation of graphite (Gr) has been shown to create hot thermalized electrons at temperatures corresponding to the solar photosphere in less than 25 fs. Plasmonic resonances in metallic nanoparticles are also known to efficiently generate hot electrons. Here we deposit Ag nanoclusters (NC) on Gr to study the ultrafast hot electron generation and dynamics in their plasmonic heterojunctions by means of time-resolved two-photon photoemission (2PP) spectroscopy...
April 20, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28400206/elucidation-of-developmental-patterns-of-marmoset-corpus-callosum-through-a-comparative-mri-in-marmosets-chimpanzees-and-humans
#19
Tomoko Sakai, Yuji Komaki, Junichi Hata, Junko Okahara, Norio Okahara, Takashi Inoue, Akichika Mikami, Mie Matsui, Kenichi Oishi, Erika Sasaki, Hideyuki Okano
The corpus callosum (CC) is present in all primate brains and is the major white matter tract connecting the cerebral hemispheres for integration of sensory, motor and higher-order cognitive information. The midsagittal area of the CC has frequently been used as a sensitive biomarker of brain development. Although the marmoset has been considered as an alternative non-human primate model for neuroscience research, the developmental patterns of the CC have not been explored. The present longitudinal study of magnetic resonance imaging demonstrated that marmosets show a rapid increase of CC during infancy, followed by a slow increase during the juvenile stage, as observed in chimpanzees and humans...
April 8, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28395165/neural-responses-to-social-exclusion-in-adolescents-effects-of-peer-status
#20
Erik de Water, Gabry W Mies, Ili Ma, Maarten Mennes, Antonius H N Cillessen, Anouk Scheres
We examined whether adolescents' neural responses to social exclusion and inclusion are influenced by their own popularity and acceptance and by the popularity of their excluders and includers. Accepted adolescents are highly prosocial. In contrast, popular adolescents, who are central and influential, show prosocial as well as antisocial behaviors, such as peer exclusion. Fifty-two 12-16 year-old adolescents underwent an functional magnetic resonance imaging (fMRI) scan while playing the ball-tossing game Cyberball in which they received or did not receive the ball from other virtual players...
March 18, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
keyword
keyword
32398
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"