gebhart/patrepeval huggingface dataset:
Use of N-Fmoc amino acid chlorides and activated 2-(fluorenylmethoxy)-5(4H)-oxazolones in solid-phase peptide synthesis. Efficient syntheses of highly N-alkylated cyclic hexapeptide oxytocin antagonists related to L-365,209 (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUse of N-Fmoc amino acid chlorides and activated 2-(fluorenylmethoxy)-5(4H)-oxazolones in solid-phase peptide synthesis. Efficient syntheses of highly N-alkylated cyclic hexapeptide oxytocin antagonists related to L-365,209Debra S. Perlow, Jill M. Erb, Norman P. Gould, Roger D. Tung, Roger M. Freidinger, Peter D. Williams, and Daniel F. VeberCite this: J. Org. Chem. 1992, 57, 16, 4394–4400Publication Date (Print):July 1, 1992Publication History Published online1 May 2002Published inissue 1 July 1992https://pubs.acs.org/doi/10.1021/jo00042a016https://doi.org/10.1021/jo00042a016research-articleACS PublicationsRequest reuse permissionsArticle Views712Altmetric-Citations39LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Experimental and numerical investigations of shock and shear wave propagation induced by femtosecond laser irradiation in epoxy resins (2015)

In this work, original shock experiments are presented. Laser-induced shock and shear wave propagations have been observed in an epoxy resin, in the case of femtosecond laser irradiation. A specific time-resolved shadowgraphy setup has been developed using the photoelasticimetry principle to enhance the shear wave observation. Shear waves have been observed in epoxy resin after laser irradiation. Their propagation has been quantified in comparison with the main shock propagation. A discussion, hinging on numerical results, is finally given to improve understanding of the phenomenon.
Green light generation by QPM SHG with Czochralski-grown stoichiometric lithium tantalate (2006)

Using periodically-poled stoichiometric lithium tantalate, peak power of 21.6 MW/cm/sup 2/ at 532 nm was achieved. A small temperature adjustment was required with 4.4 W SH power at room temperature due to its high thermal conductivity.
Dynamics of Raman soliton during supercontinuum generation near the zero-dispersion wavelength of optical fibers (2011)

We observe unique dynamics of Raman soliton during supercontinuum process when an input pulse experiences initially normal group-velocity dispersion with a negative dispersion slope. In this situation, the blue components of the spectrum form a Raman soliton that moves faster than the input pulse and eventually decelerates because of Raman-induced frequency downshifting. In the time domain, the soliton trajectory bends and becomes vertical when the Raman shift ceases to occur as the spectrum of Raman soliton approaches the zero dispersion point. Parts of the red components of the pulse spectrum are captured by the Raman soliton through cross-phase modulation and they travel with it. The influence of soliton order, input chirp and dispersion slope on the dynamics of Raman soliton is discussed thoroughly.
Towards subjective networks: Extending conditional reasoning in subjective logic (2015)

This work expands the concept of conditional reasoning in subjective logic between two variables to reasoning over multiple variables as a step to eventually realize efficient means for inference over subjective networks, i.e. Bayesian networks with uncertain marginal and conditional probabilities. Three new inference methods are introduced for a three node subjective network. Monte Carlo simulations characterize the accuracy of these methods to represent inferred uncertain knowledge about the ground truth.
Evaluation of microphone array for sound source localization using UAV (2017)

Sound source localization using a microphone array embedded on an unmanned aerial vehicle has been studied to detect and localize people who need help in a disaster-stricken area. Because such sound source localization should work in outdoor environments, the design of the microphone array is crucial. We thus developed two types of microphone array; 16ch two-storied hexagonal and 12ch spherical microphone arrays. These two microphone arrays were evaluated via numerical simulation with discussions on the appropriate design of microphone arrays.
A Novel Analysis Procedure for Estimating Thickness-Independent Horizontal and Vertical Permeabilities From Pressure Data at an Observation Probe Acquired by Packer-Probe Wireline Formation Testers (2011)

Summary This paper presents a new spherical-flow cubic-analysis procedure for estimating horizontal and vertical permeabilities solely from pressure-transient data acquired at an observation probe of a dual-packer-probe wireline formation tester (WFT). The procedure applies for all inclination angles of the wellbore in a single-layer, 3D anisotropic porous medium. It does not require one to know the formation thickness or to obtain radial flow. It is shown that the procedure provides unique estimates of horizontal and vertical permeabilities from observation-probe pressure data obtained along both vertical and horizontal wellbores. However, for slanted-well cases, the analysis procedure yields two possible solutions for the horizontal and vertical permeabilities. Therefore, one must use a priori information on permeabilities, from sources such as core data or pretests, to help identify the appropriate solution for the slanted-well cases. For the more general case of a 3D anisotropic medium, except for the vertical wellbores, an estimate of the anisotropy ratio and the azimuth angle of the well are also required as inputs for determining the values of horizontal and vertical permeability with our analysis procedure. We illustrate the applicability of the proposed analysis procedure by considering two synthetic and two field packer-probe data sets from vertical and slanted wellbores.
Role of Multimodality Imaging and Preoperative Management in Intrapericardial Paragangliomas (2022)

Intrapericardial paragangliomas are rare, highly vascular tumors that frequently adhere to adjacent structures and blood vessels, making surgical resection challenging. In this case series, we discuss the role of multimodality imaging and preoperative embolization in the management of 3 patients presenting with intrapericardial paragangliomas. (<b>Level of Difficulty: Advanced.</b>).
Pulse Radiolytic Polarography: Adsorption Effects in the Electrode Kinetics of Short‐Lived Free Radicals (1973)

Abstract Mathematical solutions for the polarographic current as a function of time are given for the case of two‐step electrode reactions: R → Ra → P (R: radicals produced homogeneously in solution by a short pulse of high energy electrons; Ra: radical adsorbed at the electrode; P: product of oxidation or reduction). If R is long‐lived or disappears according to first order kinetics, the differential equations involved are amenable to solution. If R disappears by second order kinetics, an explicit solution cannot be given; the solution for first order disappearance, however, may well be applied to such cases at times shorter than the first half‐life time of the radical. The current‐time curves exhibit a maximum whose magnitude and position with respect to time can be expressed in terms of the ratio V = k/k 1 where k is the transfer rate constant in s −1 and k 1 the time constant of the disappearance of the radicals in the solution, k 1 is measured by recording the optical absorption of the radicals as a function of time. The current‐time curves obtained for the oxidation of the ethanol radical at a mercury electrode are described by the above two‐step electrode reaction, k is obtained at different electrode potentials. The transfer coefficient for the oxidation of the ethanol radical at p H = 6 is 0.37.
Memristive characteristic of an amorphous Ga-Sn-O thin-film device (2019)

We have found a memristive characteristic of an α-GTO thin-film device. The α-GTO thin-film layer is deposited using radio-frequency (RF) magnetron sputtering at room temperature and sandwiched between the Al top and bottom electrodes. It is found that the hysteresis loop of the flowing current (I) and applied voltage (V) characteristic becomes larger and stable after the one hundredth cycle. The electrical resistances for the high-resistance state (HRS) and low-resistance state (LRS) are clearly different and relatively stable. Based on various analysis, it is suggested that the memristive characteristic is due to the chemical reaction between the SnO<sub>2</sub> and SnO blocked by AlO<sub>x</sub> on the Al bottom electrode. It is marvelous that the memristive characteristic can be realized by such common materials, simple structures, and easy fabrication.
Functionalized PdAu Alloy on Nanocones Fabricated on Optical Fibers for Hydrogen Sensing (2019)

This paper reports the development of fiber optical hydrogen sensors using palladium and gold alloy nanostructures as sensor materials for hydrogen measurements using a D-shaped fiber as a platform. Using a maskless reactive ion etching technique, silica nanocone structures were formed on the surface of the D-shaped fiber. Palladium and gold alloys were deposited on the surface of nanostructured D-shaped fiber to form a nano-alloy sensor film. Evanescent interaction between guided light propagated in the fiber core and nano-alloy enabled highly sensitive hydrogen detection from concentrations that ranged from 0.25% to 10% in atmosphere pressure. The formation of nanostructured alloy enabled by the nanocone surface led to more than 3 times faster in sensor response time and significant improvements in sensor sensitivity and reversibility. The work presented here demonstrates that highly controllable VLSI microfabrication schemes can be applied to produce nanostructured sensor films on optical fibers for high-sensitivity chemical sensing.
Relapsed Hairy Cell Leukemia: Cytologic and Immunophenotypic Findings of an Unusual Presentation in Pleural Effusion (2012)

Pleural effusions can develop in patients with hematologic malignancies. Hodgkin and non-Hodgkin lymphomas are among the most common disorders to show pleural involvement, especially if the mediastinum is involved. However, pleural effusions are rarely seen in the setting of acute or chronic leukemias and myelodysplastic syndromes. Pleural effusions in the setting of hairy cell leukemia (HCL), are rare and the prognostic significance of this finding remains open for discussion. We report the cytologic and immunophenotypic findings of a pleural effusion in a 63-year-old man with recurrent HCL in whom fatigue and shortness of breath developed. Imaging studies revealed pleural-based masses on the left lung and bilateral pleural effusions more prominent on the left side. Cytologic preparations (Diff-Quik and Papanicolaou-stained Cytospins) and H&E cell-block sections were reviewed. Immunohistochemical studies were performed on cell-block sections, and additional material was submitted for flow cytometry. Analysis of pleural fluid demonstrated the presence of a monotonous population of numerous small-medium sized atypical lymphoid cells with round to bean-shaped nuclei, homogeneous chromatin, visible nucleoli, and pale basophilic cytoplasm. Atypical lymphoid cells with "hairy" cytoplasmic projections were not readily apparent. Occasional large pleomorphic and/or binucleated atypical lymphoid cells were also seen. Flow cytometry analysis showed that the atypical lymphoid cells expressed CD19, bright CD20, bright CD22, bright CD11c and CD25, slightly dim CD45, dim 103, CD123, and . However, the cells were negative for , CD3, CD5, CD10, CD13, CD14, CD16, CD23, CD56, and CD57. Immunohistochemical studies showed that the atypical lymphoid cells expressed annexin A1, TRAP, CD20, CD22, CD25, CD11c, and CD123 but were negative for CD5 and CD10. These findings support the diagnosis of HCL. HCL cells involving the pleural cavity demonstrate most of the expected cytomorphologic features and the expected immunophenotypic findings seen in HCL, including immunoreactivity for annexin A1.
Expansion rate and geometry of floating vegetation mats on the margins of thermokarst lakes, northern Seward Peninsula, Alaska, USA (2011)

ABSTRACT Investigations on the northern Seward Peninsula in Alaska identified zones of recent (&lt;50 years) permafrost collapse that led to the formation of floating vegetation mats along thermokarst lake margins. The occurrence of floating vegetation mat features indicates rapid degradation of near‐surface permafrost and lake expansion. This paper reports on the recent expansion of these collapse features and their geometry is determined using geophysical and remote sensing measurements. The vegetation mats were observed to have an average thickness of 0.57 m and petrophysical modeling indicated that gas content of 1.5–5% enabled floatation above the lake surface. Furthermore, geophysical investigation provides evidence that the mats form by thaw and subsidence of the underlying permafrost rather than terrestrialization. The temperature of the water below a vegetation mat was observed to remain above freezing late in the winter. Analysis of satellite and aerial imagery indicates that these features have expanded at maximum rates of 1–2 m yr ‐1 over a 56 year period. Including the spatial coverage of floating ‘thermokarst mats’ increases estimates of lake area by as much as 4% in some lakes. Copyright © 2011 John Wiley &amp; Sons, Ltd.
Deployment of World's Largest Post-combustion Carbon Capture Plant for Coal-fired Power Plants (2015)

CO2 Capture and Storage (CCS) is expected to be useful for the reduction of CO2 emissions from thermal power stations. Mitsubishi Heavy Industries, Ltd. (MHI), together with Southern Company of the U.S., participated in an integrated demonstration test of capture, transportation, and storage of CO2 from the flue gas of a coal-fired power plant. The project attained a cumulative operation time of 10,000 hours and a CO2 storage amount of 100,000 tonnes or more by October 2013. In addition, in July 2014 MHI also received an order for the world’s largest post-combustion CO2 capture plant (with a CO2 capture capacity of 4,776 tonnes per day) from an Enhanced Oil Recovery (EOR) project mainly promoted by NRG Energy Inc. and JX Nippon Oil & Gas Exploration Corporation. This paper presents the results of the CO2 capture and storage demonstration test and MHI’s future actions.
Methionine-Enkephalin Stimulates Gastric Secretion and Gastric Mucosal Blood Flow (1978)

Intra-arterial infusion of methionine–enkaphalin or morphine caused a dose-dependent increase in histamine-induced gastric secretion and gastric mucosal blood flow. Administration of naloxone resulted in the reduction of both gastric secretion and mucosal circulation indicating that oxyntic cells possess specific opiate receptors and that opiate peptides may be involved in the stimulation of gastric secretion.
Cytochalasan synthesis: total synthesis of cytochalasin G (1986)

H. Dyke, R. Sauter, P. Steel and E. J. Thomas, J. Chem. Soc., Chem. Commun., 1986, 1447 DOI: 10.1039/C39860001447
Enabling Video Privacy through Computer Vision (2005)

Closed-circuit television cameras used today for surveillance sometimes enable privacy intrusion. The authors' privacy console manages operator access to different versions of video-derived data according to access-control lists. Additionally, their PrivacyCam is a smart camera that produces a video stream with privacy-intrusive information already removed.
Unusual Evolution of Ceria Nanocrystal Morphologies Promoted by a Low-Temperature Vapor Diffusion Based Process (2010)

Ceria nanoparticles are synthesized from aqueous cerium nitrate by a facile, room temperature, vapor diffusion based process, resulting in an unusual evolution of particle morphology without exogenous surface capping agents. Transmission electron microscopy, powder X-ray diffraction, and UV−visible spectroscopy reveal that as the hydroxyl ion concentration of the reaction medium increases through progressive diffusion of ammonia vapor into the precursor solution, crystals grow from amorphous small seeds to 10 nm particles with unusual development of well-defined crystal morphologies. Quasi-spherical particles grow to form truncated octahedra that subsequently grow via face reconstruction to yield cubic nanocrystals with {100} surfaces. The slow progressive increase in hydroxyl concentration resulting from the controlled diffusion of ammonia into the reaction medium permits us to observe the sequence of evolutionary transformations and deduce a probable mechanism. We suggest that the increase in OH− concentration provides the driving force for the increased growth rate along the ⟨111⟩ direction, while the exposed and otherwise unstable, polar {100} surfaces are stabilized through OH− adsorption or deprotonation of bound water. The progressive increase in basicity also leads to internal cracking that results in lattice expansion in the final CeO2 particles. The tunable, size- and shape-selective formation of ceria nanoparticles offers advantages for catalytic applications.
Recognizing holographic perception. (2008)

Recent robotics work has demonstrated that the holographic property of synthetic aperture sonar images can be used to enable object or terrain recognition using real aperture sonars. For instance, it was shown using Gulf of Mexico data from the small synthetic aperture minehunter that terrain can be recognized using as little as a single sonar element and a single ping. Similar capabilities have been ascribed to marine mammals, raising questions about whether the techniques are similar. This paper describes the basics of holographic perception and a series of experiments, which can be used to rule out its use.
A comparison between microsatellite and quantitative PCR analyses to detect frequent p16 copy number changes in primary bladder tumors. (1998)

We tested 70 primary bladder tumors for altered copy number of p16 (D9S1752) by microsatellite analysis and by a quantitative PCR (QPCR) assay. These two approaches were fully concordant for 53 tumors, including all 39 tumors in which microsatellite analysis detected loss. In addition, the QPCR method detected useful anomalies in 17 additional cases, including those in which D9S1752 was uninformative. QPCR was abnormal in 56 of 70 (80%) cases, whereas microsatellite analysis was abnormal in 39 of 70 (56%) cases. Although QPCR uses more DNA than microsatellite analysis, it represents a rapid, informative technique that can readily detect both chromosome 9p21 deletions and amplifications in primary bladder tumors without the need for electrophoretic separation.
Identifying Biomarkers for Parkinson’s Disease with Reflex Tears (S10.001) (2019)

To evaluate whether the protein composition of reflex tears differs in individuals with Parkinson’s disease (PD) versus Healthy Controls (HC)
Broader view on extreme ultraviolet masks: adding complementary imaging modes to the SHARP microscope (2015)

The authors are expanding the capabilities of the SHARP microscope by implementing complementary imaging modes. SHARP (the SEMATECH High-NA Actinic Reticle Review Project) is an actinic, synchrotron-based microscope dedicated to extreme ultraviolet photomask research. SHARP’s programmable Fourier synthesis illuminator and its use of Fresnel zoneplate lenses as imaging optics provide a versatile framework, facilitating the implementation of diverse modes beyond conventional imaging. In addition to SHARP’s set of standard zoneplates, we have created more than 100 zoneplates for complementary imaging modes, all designed to extract additional information from photomasks, to improve navigation, and to enhance defect detection. More than 50 new zoneplates are installed in the tool; the remaining lenses are currently in production. We discuss the design and fabrication of zoneplates for complementary imaging modes and present image data, obtained using Zernike phase contrast and different implementations of differential interference contrast (DIC). First results show that Zernike phase contrast can significantly increase the signal from phase defects in SHARP image data, thus improving the sensitivity of the microscope. DIC is effective on a variety of features, including phase defects and intensity speckle from substrate and multilayer roughness. The additional imaging modes are now available to users of the SHARP microscope.
Novel circuit design and process technology for leading-edge products (2010)

Achieving power, performance, yield and cost scaling targets at leading edge technology nodes has become significantly more challenging. Success is driven by making the optimal combination of process, design, and package decisions. In this paper, we report novel circuit design and process technologies for leading-edge products. We focus on two topics: (1) chip design optimization using extremely regular layout methodology, and (2) SiP (System in Package) with CoC (chip on chip) for 40nm technology node products.
Microlens Arrays Produced by a Photolytic Technique (1987)

A new process is described whereby excellent quality microlenses can be photolithographically patterned onto a glass. The glass whe exposed to Ultraviolet light followed by a thermal development initiates the formation of noble metal particles which in turn serve as nuclei for the growth of a microcrystalline phase from the homogeneous glass. This thermo-optically developed crystallized region is slightly more dense than the homogeneous glass. The contraction of the exposed region squeezes the soft unexposed glass beyond the original surface during the thermal schedule. When the appropriate photomask is used, opaque circles on a clear background, this effect produces spherical segments due the surface energy minimization. See Figure 1 for schematic of process and Figure 2 for actual SEM photomicrograph of formed lenses.
Microwave and magneto-optic properties of bismuth-substituted yttrium iron garnet thin films (1990)

Microwave and magneto-optic measurements have been made on bismuth-substituted yttrium iron garnet (BiYIG) films. Forward-volume (FV) magnetostatic-wave (MSW) attenuation has been measured from ferrimagnetic resonance and from pulse delay data. We report the indirect observation of FV MSW in BiYIG using two independent techniques: a pulse transmission technique and a passband measurement technique. Faraday rotation in the films was also recorded at a wavelength of 1.3 μm. The bismuth-substituted films are grown on carefully cleaned substrates and have yttrium:bismuth ratios of 1:1. The composition of the bismuth substituted films is Y1.5Bi1.5Fe5O12 deduced from lattice parameters and absolute Faraday rotation. These films show particular promise for use in waveguide-type high-speed MSW-optical devices where low MSW attenuation and high Faraday rotation are among the necessary criteria for successful operation.