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Welcome to the Pubget Medical Subject Headings (MESH) browser. Click on a topic or subtopic below to explore related papers. In the gold box is the most recent paper about the current MESH term, and below are 20 related papers.
Optical Phenomena (4):
Recent article
Optical Phenomena
Abstract
The dominant optical characteristics of Southeast Asia (SEA)'s regional aerosols were determined from the cluster analysis of the 26 AERONET aerosol inversion products, including aerosol light scattering/absorption indicators and aerosol size/shape parameters retrieved from 2003 to 2007. The data set...
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PMID: 21850829
PDF is available here.
PDF is available here.
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Biomacromolecules (12)6 2011
Abstract
It was more than 50 years ago that an appearance of birefringence in alginate gels prepared under cation flow was reported for the first time, however, the anisotropic structure of the alginate gel has not been studied in detail. In the present study, anisotropic Ca-alginate gels wer...
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PMID: 21504159
PDF is available here.
PDF is available here.
Abstract
These results lay the foundation for the development of ideal nerve-highlighting fluorophores for image-guided surgery....
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PMID: 21439254
PDF is available here.
PDF is available here.
Abstract
We focus on the epitaxial growth, p-type doping and photoluminescence properties of SnO(2) films and nanostructures, including the achievements in our group. Finally, the applications of SnO(2) nanostructures to optoelectronic devices including heterojunction light emitting devices, photodetectors a...
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PMID: 21428903
PDF is available here.
PDF is available here.
Medical Physics (38)3 2011
Abstract
Optoacoustic imaging is an emerging noninvasive imaging modality that can resolve optical contrast through several millimeters to centimeters of tissue with diffraction-limited resolution of ultrasound. Yet, quantified reconstruction of tissue absorption maps requires optoacoustic signals to be colle...
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PMID: 21520882
PDF is available here.
PDF is available here.
Abstract
Left ventricular motion estimation is very important for diagnosing cardiac abnormality. One of the popular techniques, optical flow technique, promises useful results for motion quantification. However, optical flow technique often failed to provide smooth vector field due to the complexity of cardi...
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PMID: 21431586
PDF is available here.
PDF is available here.
Abstract
A fluorescent nucleobase analogue, 7-aminoquinazoline-2,4-(1H,3H)-dione, is incorporated into a DNA oligonucleotide and senses mismatched pairing by displaying G-specific fluorescence enhancement.
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PMID: 20862439
PDF is available here.
PDF is available here.
Dental update (37)9 2010
Abstract
There are three principal reasons for adopting magnifying loupes for operative dentistry: to enhance visualization of fine detail, to compensate for the loss of near vision (presbyopia) and to ensure maintenance of correct posture. The wearing of loupes is becoming an accepted norm amongst qualified...
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PMID: 21179934
PDF is available here.
PDF is available here.
Applied Optics (49)28 2010
Abstract
We investigated an approach based on fiber-optic measurement of reflectance to determine absorption and reduced scattering coefficients (μ(a) and μ(s)') in two-layer turbid media. Neural network inverse models were trained on simulation data for a wide variety of OP combinations (μ(a) = 1-22.5, ...
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PMID: 20885467
PDF is available here.
PDF is available here.
Abstract
A hybrid deterministic-stochastic algorithm combining the simplex method (SM) and a genetic algorithm (GA) was applied to the problem of extracting the optical and morphological properties of human skin (HSOMPs) from visual reflectance spectroscopy data. The results using the GA-SM hybrid algorithm...
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PMID: 20549282
PDF is available here.
PDF is available here.
Abstract
We observe exceptionally long-lasting current blockades with a fine structure of distinct current levels, suggesting an attractive interaction between the DNA and the PEGylated metallic pore walls....
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PMID: 20564484
PDF is available here.
PDF is available here.
Abstract
We observe exceptionally long-lasting current blockades with a fine structure of distinct current levels, suggesting an attractive interaction between the DNA and the PEGylated metallic pore walls....
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PMID: 20564484
PDF is available here.
PDF is available here.
Abstract
We observe exceptionally long-lasting current blockades with a fine structure of distinct current levels, suggesting an attractive interaction between the DNA and the PEGylated metallic pore walls....
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PMID: 20564484
PDF is available here.
PDF is available here.
Abstract
We observe exceptionally long-lasting current blockades with a fine structure of distinct current levels, suggesting an attractive interaction between the DNA and the PEGylated metallic pore walls....
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PMID: 20564484
PDF is available here.
PDF is available here.
Abstract
We observe exceptionally long-lasting current blockades with a fine structure of distinct current levels, suggesting an attractive interaction between the DNA and the PEGylated metallic pore walls....
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PMID: 20564484
PDF is available here.
PDF is available here.
Abstract
We observe exceptionally long-lasting current blockades with a fine structure of distinct current levels, suggesting an attractive interaction between the DNA and the PEGylated metallic pore walls....
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PMID: 20564484
PDF is available here.
PDF is available here.
Abstract
We observe exceptionally long-lasting current blockades with a fine structure of distinct current levels, suggesting an attractive interaction between the DNA and the PEGylated metallic pore walls....
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PMID: 20564484
PDF is available here.
PDF is available here.
Abstract
We observe exceptionally long-lasting current blockades with a fine structure of distinct current levels, suggesting an attractive interaction between the DNA and the PEGylated metallic pore walls....
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PMID: 20564484
PDF is available here.
PDF is available here.
Abstract
We observe exceptionally long-lasting current blockades with a fine structure of distinct current levels, suggesting an attractive interaction between the DNA and the PEGylated metallic pore walls....
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PMID: 20564484
PDF is available here.
PDF is available here.
Abstract
We observe exceptionally long-lasting current blockades with a fine structure of distinct current levels, suggesting an attractive interaction between the DNA and the PEGylated metallic pore walls....
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PMID: 20564484
PDF is available here.
PDF is available here.
Abstract
We observe exceptionally long-lasting current blockades with a fine structure of distinct current levels, suggesting an attractive interaction between the DNA and the PEGylated metallic pore walls....
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PMID: 20564484
PDF is available here.
PDF is available here.
Optics Express (18)12 2010
Abstract
A novel method for evaluation of bacterial colonies number (Colony Forming Units--CFU), is described. Proposed algorithm, based on the Mellin transform, allows the CFU evaluation, invariant for the spatial orientation and scale changes. The proposed method involves image recording of bacteria grown...
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PMID: 20588428
PDF is available here.
PDF is available here.
Optics Express (18)12 2010
Abstract
We developed a compact and low cost system using a broadband light source with an 8-slot filter wheel for illumination and silicon photodiodes for detection. The spectral imaging system was tested on a set of tissue mimicking liquid phantoms which yielded an optical property extraction accuracy of 6...
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PMID: 20588390
PDF is available here.
PDF is available here.
Anesthesiology (112)5 2010
Abstract
Pediatric Research (67)5 2010
Abstract
We detail recent advances in the detection of antibiotics, especially in milk, using a variety of methods. Various techniques such as electrochemical and surface plasmon resonance methods are described....
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PMID: 20118827
PDF is available here.
PDF is available here.
Optics Express (18)8 2010
Abstract
We developed AO-OCT with a 1.03-mum probing beam and demonstrated high-penetration, high-resolution retinal imaging. Axial scans are acquired with a speed of 47,000 lines/s. AO closed loop is configured with a single deformable mirror. Seven eyes of 7 normal subjects were examined. Signal enhancemen...
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PMID: 20588698
PDF is available here.
PDF is available here.
Optics Express (18)8 2010
Abstract
A simple and fast time-domain method for localizing inclusions, fluorescent optical probes or absorbers, is presented. The method offers new possibilities for situations where complete tomographic measurements are not permitted by the examined object, for example in endoscopic examination of the hum...
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PMID: 20588616
PDF is available here.
PDF is available here.
Optics Express (18)8 2010
Abstract
We demonstrate for the first time that the detailed cutaneous blood flow at capillary level within dermis of human skin can be imaged by optical micro-angiography (OMAG) technique. A novel scanning protocol, i.e. fast B scan mode is used to achieve the capillary flow imaging. We employ a 1310nm syst...
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PMID: 20588668
PDF is available here.
PDF is available here.
Dental Materials (26)4 2010
Abstract
There was a significant interaction between material and load as well as between load and brushing time (p<0.0001). The microhybrid and hybrid materials demonstrated more surface deterioration with higher loads, whereas with the microfilled resins Heliomolar and Adoro it was vice versa. For ceramic...
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PMID: 20036418
PDF is available here.
PDF is available here.
Methods in Molecular Biology (624)624 2010
Abstract
This chapter describes the application of gold nanorods in biomedical imaging and photothermal therapy. The photothermal properties of gold nanorods are summarized and the synthesis as well as antibody conjugation of gold nanorods is outlined. Biomedical applications of gold nanorods include cancer...
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PMID: 20217607
PDF is available here.
PDF is available here.
Methods in Molecular Biology (624)624 2010
Abstract
Cancer is a leading cause of death in the United States and contributes to yearly rising health care costs. Current methods of treating cancer involve surgical removal of easily accessible tumors, radiation therapy, and chemotherapy. These methods do not always result in full treatment of the cancer...
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PMID: 20217591
PDF is available here.
PDF is available here.
Optics Express (18)5 2010
Abstract
We observed cone renewal in three subjects, manifesting as elongation of the cone outer segment, with rates ranging from 93 to 113 nm/hour (2.2 to 2.7 microm/day). In one subject we observed renewal occurring over 24 hours, with small but significant changes in renewal rate over the day. We determin...
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PMID: 20389538
PDF is available here.
PDF is available here.
Optics Express (18)5 2010
Abstract
We have designed an ultra-slim objective to fit inside the 1-mm-diameter hypodermic needles currently used for breast biopsies to image tissue stained by the fluorescent probe proflavine. To ensure high-quality imaging performance, experimental tests were performed to characterize fiber bundle's lig...
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PMID: 20389489
PDF is available here.
PDF is available here.
Optics Express (18)5 2010
Abstract
Our results demonstrate the feasibility of the whole approach for reconstructing grayscale images....
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PMID: 20389500
PDF is available here.
PDF is available here.
Optics Express (18)5 2010
Abstract
We therefore prove the application of this novel pump geometry provides opportunities for power-scaling of synchronously pumped OPO systems together with enhanced nonlinear conversion efficiency through relaxed damage threshold intensity conditions....
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PMID: 20389413
PDF is available here.
PDF is available here.
Optics Express (18)5 2010
Abstract
We have undertaken a study of when geometrical optics may be employed to model the system in order to avoid the need to perform a computationally expensive wave optics calculation. In this paper, we derive the relationship between the geometrical and wave optics model for our system imaging an infin...
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PMID: 20389424
PDF is available here.
PDF is available here.
Optics Express (18)3 2010
Abstract
We demonstrate that, for larger optical path lengths, the scattering coefficient of the static matrix in which the moving particles are embedded have a small to minimal effect on the measured fraction of Doppler shifted photons and on the measured average Doppler frequency of the Doppler shifted lig...
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PMID: 20174114
PDF is available here.
PDF is available here.
Abstract
We compared three-dimensional (3D) scapular positions obtained with skin markers to those obtained through palpation of three scapular anatomical landmarks. The scapular kinematics of nine subjects were collected. Static positions of the scapula were recorded with the right arm elevated at 0 degrees...
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PMID: 19544114
PDF is available here.
PDF is available here.
Abstract
Donor-substituted cyanoethynylethenes (CEEs) are planar push-pull chromophores featuring intense intramolecular charge-transfer (CT) interactions and high third-order optical nonlinearities. Their thermal stability allows for the formation of crystalline thin films by vapor-phase deposition. On the...
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PMID: 21137717
PDF is available here.
PDF is available here.
Abstract
To evaluate the optical integration and fluorescence of three contemporary restorative materials used for incisoproximal restorations.
A microfilled hybrid composite (Amaris, VOCO; MHC), a nanofilled hybrid composite (Grandio, VOCO; NHC), and an experimental ormocer (VOCO; ORM) were used to consecut...
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PMID: 20927420
PDF is available here.
PDF is available here.
Biopolymers (95)5 2011
Abstract
The technologies associated with DNA sequencing are rapidly evolving. Indeed, single-molecule DNA sequencing strategies are cheaper and faster than ever before. Despite this progress, every sequencing platform to date relies on reading the genome in small, abstract fragments, typically of less than 1...
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PMID: 21207457
PDF is available here.
PDF is available here.
Abstract
Intravascular low level laser therapy (ILLLT) has been applied in the treatment of many diseases for about twenty years. However, much fundamental work has not been done on its dosimetry. The study was designed to compare the difference of light distribution during ILLLT between using flat end fiber...
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PMID: 20421704
PDF is available here.
PDF is available here.
Abstract
We measured the optical characteristics including PL, scattering coefficients (mu'(s)), and absorption coefficients (mu(a)) at three wavelengths (760, 800, 830 nm). Then, we constructed maps of these parameters on the subjects' head surface. While the PLs in nearby channels are similar, they differ...
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PMID: 20204793
PDF is available here.
PDF is available here.
Abstract
We utilized two approaches: (i) using only HbO(2) as a regressor in the general linear model (GLM) and (ii) using all of the explanatory variables (HbO(2), MBP, HR and scalp flux) as regressors. Group analysis using SPM showed significant correlation in a large number of OT channels between HbO(2) a...
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PMID: 20204798
PDF is available here.
PDF is available here.
Abstract
We evaluated the changes in mean optical pathlength (MOP) and CBO induced by a verbal fluency task (VFT) in the right and left frontal lobes in normal adults (n = 9, mean age = 29.6 +/- 4.8 years). We employed a newly developed 8-channel time-resolved near-infrared spectroscopy (TRS) instrument. The...
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PMID: 20204794
PDF is available here.
PDF is available here.
Abstract
We performed instrumental and methodological developments of time-resolved NIRS with the aim to achieve depth resolution. We present our recently developed time-domain near-infrared brain imager based on picosecond diode lasers and time-correlated single photon counting (TCSPC) which can be used at...
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PMID: 20204784
PDF is available here.
PDF is available here.
Abstract
We term the "cyclic SmO(2)", has the potential to be less affected by the myoglobin which is traditionally believed to be indistinguishable from haemoglobin using NIRS techniques. The cyclic SmO(2) also has fewer assumptions than the conventional SmO(2) measured using time, phase and spatially resol...
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PMID: 20204790
PDF is available here.
PDF is available here.
Journal of Dentistry (38 Suppl 2) 2010
Color stability of pigmented maxillofacial silicone elastomer: effects of nano-oxides as opacifiers.
Abstract
This study evaluated the effects of nano-oxides on the color stability of pigmented silicone A-2186 maxillofacial prosthetic elastomers before and after artificial aging.
Each of three widely used UV-shielding nano-sized particle oxides (TiO(2), ZnO, CeO(2)), based on recent survey of the industry a...
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PMID: 20472021
PDF is available here.
PDF is available here.
Abstract
Diffractive IOLs studied presented similar MTF curves for a 5 mm pupil diameter. Both diffractive IOLs showed similar spherical aberration, which was significantly better with the full-diffractive IOL Tecnis than with the refractive IOL ReZoom....
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PMID: 20195032
PDF is available here.
PDF is available here.
Abstract
Three new enantiopure aryl-thioureas have been synthesized, N-(4-X-phenyl)-N-[1(S)-1-phenylethyl]thiourea, X= Cl, Br, and NO2 (compounds 1-3, respectively). Large single crystals of up to 0.5 cm(3) were grown from methanol/ethanol solutions. Molecular structures were derived from X-ray diffraction s...
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PMID: 20110909
PDF is available here.
PDF is available here.
Abstract
We report the synthesis and optical properties of organic porphyrin nanoparticles with narrow size distribution and good dispersibility. Nanoparticles were produced by a combination of precipitation and sonication, termed the "ultrasonic method". The resulting [tetrakis(para-chlorophenyl)porphyrin]T...
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PMID: 20110879
PDF is available here.
PDF is available here.
Abstract
Light transmission through amniotic fluid is optimal in the near-infrared spectrum and at the highest visible wavelengths, regardless of gestational age. Overall light transmission through amniotic fluid decreases throughout gestation. The light source and camera of videofetoscopy systems should be...
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PMID: 19940448
PDF is available here.
PDF is available here.
Abstract
Emerging as well as the most frequently used optical microscopy techniques are reviewed and image contrast generation methods in a microscope are presented, focusing on the nonlinear contrasts such as harmonic generation and multiphoton excitation fluorescence. Nonlinear microscopy presents numerous...
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PMID: 19851883
PDF is available here.
PDF is available here.
Abstract
This study describes the performance of a new waveguide flow cell constructed from Teflon AF (TFC) and the potential use of fiber optic splitters to replace collection objectives and dichroic mirrors. The TFC has the unique optical property that the refractive index of the polymer is lower than wate...
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PMID: 19802876
PDF is available here.
PDF is available here.
Abstract
Abstract
The Critical Review of Hoff and Christopher, along with the discussants, provides an important perspective on the interface between satellite measurement science and air quality observations. A top-down picture of the usefulness of satellite observations in terms of air quality regulatory and techni...
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PMID: 19842321
PDF is available here.
PDF is available here.
Abstract
Measurements of Rayleigh light scattering and Cotton-Mouton (CM) effect are carried out at room temperature for 100 mM NaCl solutions of apoferritin/ferritin loaded with 0, 90, 100, 500, 700, and 1500 Fe atoms/molecule. Because of the spherical shape, ferritin macromolecule should not manifest magne...
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PMID: 19586126
PDF is available here.
PDF is available here.
Abstract
A straight-forward en bloc concept is demonstrated for determination of toric IOLs and estimation of the residual refraction. The applicability is shown in working examples, and clinical aspects such as rotation of the lens implant are addressed....
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PMID: 19662918
PDF is available here.
PDF is available here.
Abstract
Little is known about the precise mechanical stimuli that cells sense and respond to as they maintain or refashion the extracellular matrix in multiaxially loaded native or bioengineered tissues. Such information would benefit many areas of research involving soft tissues, including...
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PMID: 19063662
PDF is available here.
PDF is available here.
The Journal of Chemical Physics (130)20 2009
Abstract
Complex chi(2) spectra of air/water interfaces in the presence of charged surfactants were measured by heterodyne-detected broadband vibrational sum frequency generation spectroscopy for the first time. In contrast to the neat water surface, the signs of chi(2) for two broad OH bands are the same in...
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PMID: 19485472
PDF is available here.
PDF is available here.