... " An Ablation Technique for Enhancing ... High- power antenna breakdown was modiXfied by the presence of the ablation product. ...
DTIC Science & Technology
... TITLE: Enhancement of Intermittent Androgen Ablation Therapy by Finasteride Administration in Animal Models PRINCIPAL ...
... Descriptors : *ABLATION, *ATMOSPHERE ENTRY, *PLASMA ... AND MAGNETOHYDRODYNAMICS RADIOFREQUENCY WAVE PROPAGATION. ...
... Title : Enhancement of Intermittent Androgen Ablation Therapy by Finasteride Administration in Animal Models. Descriptive Note : Final rept. ...
... Title : Enhancement of Intermittent Androgen Ablation Therapy by Finasteride Administration in Animal Models. Descriptive Note : Annual rept. ...
... Absorption Enhanced Liquid Ablation with TEA CO2 Laser ... For example, the use of different ablation vessel geometries, ie., parabolic, conical, etc. ...
... The inclusion of iron or ferric oxide in the ... ABLATION), PHENOLIC PLASTICS, SILICON DIOXIDE, CHROMIUM COMPOUNDS, OXIDES, IRON ...
... Accession Number : ADA428531. Title : Absorption Enhanced Liquid Ablation with TEA CO2 Laser. Descriptive Note : Conference paper. ...
Although there has been a feasibility study of saline-enhanced radiofrequency ablation of the lung in rabbits, there has been no report on hypertonic saline-enhanced radiofrequency ablation of human pulmonary tumors or its complication. We report a case in which a large necrotic cavity was produced in the lung ...
Energy Citations Database
Even though CR has shown to enhance base excision repair (BER) and nucleotide excision repair (NER) capacities, it has not been reported whether CR can enhance non-homologous end joining (NHEJ) activity. To examine the effect of CR on NHEJ activity, ad libitum (AL)- and calorie restricted (CR)-dieted rats were used. Age-dependent ...
PubMed
Recent evidence suggests older adults may be a sensitive population with regard to environmental exposure to toxic compounds. One source of this sensitivity could be an enhanced variability in response. Studies on phenotypic differences have suggested that variation in response d...
EPA Science Inventory
Recent evidence suggests the elderly may be a sensitive subpopulation with regard to environmental exposure to toxic compounds. One source of this sensitivity within the aged subpopulation could be an enhanced variability in response to exposures. This variability, if sufficien...
A novel technique for measuring of force as a function of time was developed for the study of enhanced momentum transfer in laser-ablated water solutions of Sodium Tetrafluoroborate NaBF4, a compound that strongly absorbs radiation in the 8-11 m wavelengt...
National Technical Information Service (NTIS)
A laminated ablator is explored as an alternative concept for stabilizing the ablative Rayleigh-Taylor instability which develops in inertial fusion targets. Experiments measuring the growth of the Rayleigh-Taylor instability of laminated planar foils are reported. Consistent with both theory and simulations, a significant reduction of the perturbation ...
NASA Astrophysics Data System (ADS)
Subdiffraction spatially resolved, quantitative mapping of strongly localized field intensity enhancement on gold nanostructures via laser ablation of polymer thin films is reported. Illumination using a femtosecond laser scanning microscope excites surface plasmons in the nanostructures. The accompanying field enhancement ...
Femtosecond and nanosecond lasers were compared for ablating brass alloys. All operating parameters from both lasers were equal except for the pulse duration. The ablated aerosol vapor was collected on silicon substrates for particle size measurements or sent into an inductively coupled plasma mass spectrometer. The diameters and size distribution of ...
Laser ablation of aluminum metal with 1 ns, 800 nm pulse at low radiant exposures was investigated in air (dry) and water (wet) environments. Compared to dry ablation, an approximately eight times increase in material removal rate was associated with wet ablation. Based on optical reflectance and scanning electron microscope images, ...
We present experimental results for the plasmonic laser ablation of silicon with nanoscale features as small as 22 x 66 nm using single near-infrared, femtosecond laser pulses incident on gold nanorods. Near the ablation threshold, these features are photo-imprints of gold nanorod particles positioned on the surface of the silicon and have feature sizes ...
In this study, we investigated the role of water spray. To ablate human enamel tissue, a long-pulsed Er,Cr:YSGG laser was used at various radiant exposures. During dental ablation, distilled water was sprayed to the sample surface. Desiccated samples were also tested with direct irradiation for comparison. In order to identify dominant ...
Purpose: Develop a new combination therapy consisting of cryoablation and conductive high-temperature ablation for enhanced thermal ablation of solid tumors. Methods: We have constructed an invasive probe that can be used for consecutive cryoablation and hightemperature ablation (C/HTA), with a single insertion. ...
Linear theory of the ablative Rayleigh-Taylor instability in anisotropic diffusive materials is presented. This analysis indicates that enhancing diffusion in a plane transverse to the mean longitudinal flow can strongly reduce the growth of the instability. In the context of inertial confinement fusion, it is shown that anisotropic diffusion can be ...
The detection of radio-frequency ablation lesions has been shown to be feasible using delayed enhancement magnetic resonance imaging (MRI). However, it is the determination of the lesion patterns that is of import for correlation with clinical outcome and location of gaps. Visualisation of ablation patterns on two-dimensional (2D) MR ...
Laser ablation mass spectrometry and surface-enhanced Raman spectroscopy have been used to characterize both modern and 150 year old daguerreotypes. Such investigations are a necessary prelude to attempts to clean them of tarnish by laser ablation. A demonstration of the successful cleaning of a damaged daguerreotype is presented. .
One critical issue in prostate cancer research is to slow down the transition of prostate cancer from an androgen-dependent state to a lethal androgen-refractory state. Intermittent androgen ablation therapy (IAAT) may slow down the development of androge...
The morphology of craters resulting from high irradiance laser ablation of silicon was measured using a white light interferometry microscope. The craters show a dramatic increase in their depth and volume at a certain irradiance, indicating a change in t...
Recent work has brought about a renewed interest in CO2 laser ablation studies of polyoxymethylene, due to its potential as a test target for enhancing modern understanding of the laser ablation process. In this paper, new results taken in air at atmosphere pressure are reported, including data measured at institutions in Germany and ...
We have studied periodic nanostructure formation processes on hard thin film surfaces in femtosecond laser ablation. Using diamond-like carbon films patterned with submicrometer-size stripes, we found that the nanoscale ablation is preferentially initiated by the enhancement of a local field on the stripe surface having high curvature. ...
The purpose of this study was to evaluate whether contrast-enhanced C-arm CT (3D rotational angiography) can distinguish radiofrequency (RF) ablation lesions created in the left ventricle. Ablation lesions were created on the endocardial surface of the left ventricle of 6 swine using a 7 F RF ablation catheter with ...
The effect of an artificially deposited liquid film on a laser-ablated metal surface at near-threshold laser fluences is presented. Experiments utilizing a Q-switched Nd:YAG laser (wavelength=1064 nm, full width at half maximum=6 ns) reveal that deposition of a liquid film results in substantial reduction of ablation threshold and ...
The influence of pulsed laser ablation of an aluminum target on the nitrogen plasma produced by electron cyclotron resonance (ECR) microwave discharge has been studied by optical emission spectroscopy (OES) with time and space resolution. The continuous wave (CW) feature of the optical emissions from the ECR nitrogen plasma turns to vary with time and space due to pulsed laser ...
Thermal tumour ablation techniques, such as radiofrequency (RF) ablation, are applied for radical removal of local tumours as an easier, less invasive alternative to surgical resection. A serious drawback of thermal ablation, however, is that the ablation area cannot be accurately assessed during the procedure. To ...
A 75-year-old man received lung radiofrequency (RF) ablation to treat lung metastases from hepatocellular carcinoma. Massive hemoptysis occurred 1 week after lung RF ablation. Emergent contrast-enhanced CT and pulmonary arteriography revealed a pulmonary artery pseudoaneurysm, which was embolized with coils. The postembolization course ...
Radiofrequency ablation (RFA) of hepatocellular carcinoma (HCC) is an established alternative treatment to surgery and intra-arterial chemotherapy, usually performed under contrast-enhanced CT scan guidance. We describe our experience with the use of contrast-enhanced ultrasound and contrast dynamics analysis for planning and ...
PubMed Central
... various models of age- dependent branching processes. ... a general semi-Markov process until the ... considered in a simple age dependent branching ...
The objective of this study was to understand the dominant mechanism(s) for dental enamel ablation with the application of water spray. A free-running Er,Cr:YSGG (yttrium, scandium, gallium, garnet) laser was used to ablate human enamel tissue at various radiant exposures. During dental ablation, distilled water was sprayed on the ...
... whether the combination of androgen ablation and ... test adoptive immunotherapy treatment in mice harboring TRAMP ... this task due to a lack of time. ...
... obtained from American Type Culture Collection (ATCC ... in a D)IT-poor environment (after treatment ... The influence of finasteride on the development ...
... filled plastic shells have demonstrated significant and absolute (2x) improvements in neutron yield when the shells are ...
... direct-drive spherical implosion experiments with deuterium filled plastic shells have demonstrated significant and absolute (2x) improvements in ...
The pulsed laser ablation of aluminium, copper and titanium irradiated with 4.5 ns pulses at 355 nm, 532 nm and 1064 nm wavelengths is investigated in open air at normal atmospheric conditions. The effect of pulse number, which is varied in the range of 5 to 50, on ablation rate in these three wavelength regimes is determined. The results indicate a higher ...
The enhancement of ion signals by the resonant laser ablation (RLA) process was investigated by using a 2-color RLA mass spectrometry for samples containing Pb and Ni. Two laser beams, a second harmonic of Nd:YAG laser (532 nm) and a UV beam of frequency tunable dye laser, were used for either simultaneous ablation by directing both ...
Lung radiofrequency (RF) ablation was performed for the treatment of a primary lung cancer measuring 2.5 cm in maximum diameter in a 78-year-old man. A contrast-enhanced computed tomography (CT) study performed 3 months after RF ablation showed incomplete ablation of the lung tumor and the appearance of a chest ...
Second-harmonic generation and two-photon excited fluorescence microscopy were used in combination in the same optical system for in vivo imaging. This work aimed at detecting collagen remodeling and reorganization in living subjects following laser micro-ablative fractional resurfacing treatment. Treated regions in the forearm of volunteers covering a wide age range were ...
... breast carcinoma after irradiation of young women with Hodgkin's disease. Cancer 79:1203�1210.1997). CrossRef, PubMed, CSABhatia, ... Breast cancer and other second neoplasms after childhood Hodgkin's di...
NBII National Biological Information Infrastructure
Pulmonary MRA generates high-resolution images of the pulmonary veins (PV) and left atrium (LA), permitting characterization of complex PV anatomy, which is useful in electrophysiologic PV catheter ablation, a proven technique for the treatment of paroxysmal atrial fibrillation (PAF). The purpose of this study was to determine if pre-ablative pulmonary MRA ...
Due to the imaging of dynamic perfusion, hepatocellular carcinoma can be detected with a sensitivity of >90% using contrast-enhanced sonography. The characterization of liver tumors with contrast-enhanced sonography is comparable to the diagnostic accuracy of contrast-enhanced computed tomography. The dynamic detection of ...
