gebhart/patrepeval huggingface dataset:
Engineering and environmental applications of laser scanner techniques (2002)

S: The recent introduction of laser scanning devices has led to a set of new surveying products for the field of civil engineering and environmental analysis. The laser scanner is an instrument that permits one to acquire irregular point clouds of land areas, rivers and infrastructures in a fast and cheap way. The use of raw laser scanner data requires orientation and filtering procedures to generate a 3D model of the surveyed object., It is possible to automatically derive a set of geometric information from this 3D model that is useful for a variety of particular applications (engineering and environmental): dense DTM generation, sections and profiles, contour maps, volumes and so on. This paper describes an original, fully automatic software that has been implemented by the authors and which can supply a set of procedures that makes use of laser scanner data for engineering and environmental applications. Some pratical examples have been shown: the Lys stream in Pont Saint Martin in the Aosta Valley, a stone quarry in Bagnolo Piemonte and a landslide in St. Rhemy en Bosses in the Aosta Valley (Italy).
Obstetric transition in the World Health Organization Multicountry Survey on Maternal and Newborn Health: exploring pathways for maternal mortality reduction. (2015)

This analysis supports the concept of obstetric transition using multicountry data. The Obstetric Transition Model could provide justification for customizing strategies for reducing maternal mortality according to a country's stage in the obstetric transition.
Lower limit on the top-quark mass from events with two leptons in<i>pp¯</i>collisions at √<i>s</i>=1.8 TeV (1992)

We present results from searches for the top quark pp\ifmmode\bar\else\textasciimacron\fi{} collisions at the Fermilab Tevatron Collider. The data sample was collected during 1988--89 with the Collider Detector at Fermilab and has an integrated luminosity of 4.1 ${\mathrm{pb}}^{\mathrm{\ensuremath{-}}1}$. Our previous search for e\ensuremath{\mu} final states for tt\ifmmode\bar\else\textasciimacron\fi{}\ensuremath{\rightarrow}e\ensuremath{\nu}b \ensuremath{\mu}\ensuremath{\nu}b\ifmmode\bar\else\textasciimacron\fi{} decays has been extended to include the ee and \ensuremath{\mu}\ensuremath{\mu} channels. In addition, we have searched in each event with a high-transverse-momentum lepton accompanied by hadron jets for a low-transverse-momentum muon as a tag of a bottom quark in tt\ifmmode\bar\else\textasciimacron\fi{}\ensuremath{\rightarrow}l\ensuremath{\nu}bqq\ifmmode\bar\else\textasciimacron\fi{}b\ifmmode\bar\else\textasciimacron\fi{} decays. A lower limit on the top-quark mass of 91 GeV/${\mathit{c}}^{2}$ is obtained at the 95% confidence level, assuming standard model decays.
Smooth and anisotropic reactive ion etching of GaAs slot via holes for monolithic microwave integrated circuits using Cl2/BCl3/Ar plasmas (1999)

A process to produce very smooth and highly anisotropic through-the-wafer slot via holes using reactive ion etching in Cl2/BCl3/Ar mixtures has been developed. In this study, we have extensively investigated the GaAs etch rate and resultant etch profiles as functions of bias voltage, gas ratio, flow rate, chamber pressure, aspect ratio, and etch time. An optimum via hole etching process using a Plasma Therm 790 reactive ion etching system was determined to be 300 V bias voltage, gas flow ratio of Cl2:BCl3:Ar=4:3:10, and chamber pressure of 15 mTorr. The average etch time for 20 μm wide ×60 μm long vias on a 50 μm thick 3 in. diam wafer is 180 min using a total flow rate of 50 sccm, which corresponds to an average etch rate of 0.3 μm/min. This process has been successfully implemented on two-stage Ka-band monolithic microwave integrated circuit driver amplifiers fabricated by TRW. Under a pulsed bias with Vds=5.0 V and an input power of 15 dBm, the average power added efficiency was greater than 40% with a 13–14 dB gain between 32 and 36 GHz. A peak power added efficiency of 44% was achieved at 35 GHz.
Design of a CMOS image sensor and stimulation IC for a wide-angle retina implant (2017)

In this work the design of a new epiretinal stimulator approach with integrated bendable imaging sensor is presented. First, the fundamental differences to the existing retinal stimulation implants is described. In the second part, a brief description of the novel designed implant is given, where several integrated circuits are placed on a single polyimide foil to create the mechanically flexible implant. Then the design of the developed dies is presented, containing the image sensor with a signal processing unit, a configurable waveform generator and a current controlled stimulation unit.
ChemInform Abstract: BIFLORA‐4,10(19),15‐TRIENE: A NEW DITERPENE FROM A TERMITE SOLDIER (ISOPTERA TERMITIDAE TERMITINAE) (1980)

Abstract Das Diterpen (I) wird isoliert, in seiner Struktur bestätigt und verschiedenen Folgereaktionen unterworfen.
Viscoelastic properties of the ankle during quiet standing via raster images and EKF (2014)

The present study deals with the reconstruction of the continuous-time state space parameters proper of human quiet standing. The reconstruction utilized a hybrid non-linear extended Kalman filter to combine a biomechanical model with the discrete-time position measurements provided by two web-cameras via a General Linear Camera model. After camera calibration and validating the filter in simulation, we performed the estimation on a group of volunteers whose quiet standing was perturbed by means of a hold and release paradigm. The filter allowed estimating stiffness and damping of the ankle during quiet standing as well as the kinematic variables of the subjects' center of mass.
Effect of Selection for Reduced Residual Feed Intake on Pork Carcass Composition and Fresh Pork Quality (2009)

Selection for reduced residual feed intake (RFI) resulted in leaner carcasses and less intramuscular lipid in the pork loin. However, the selection approach did not result in differences in water holding capacity and color of fresh pork loin chops. Selection for reduced RFI has the potential to improve carcass composition with few detrimental effects on meat quality.
Testing for tunneling opens (2002)

A tunneling-open failure mode is proposed and carefully studied. A circuit with a tunneling open could pass at-speed Boolean tests but fail VLV testing or I/sub DDQ/ testing. Theoretical calculations as well as Boolean and I/sub DDQ/ experiments confirm the existence of tunneling opens. The Murphy experimental data show that seven out of nine VLV-only failure circuits can be explained by this failure mode. All these seven circuits survived 366 hours temperature burn-in. Finally, a cost effective screening strategy is proposed.
<title>Application of electrodeposition processes to advanced package fabrication</title> (1991)

Conductors for advanced packaging have thicknesses of the order of 6 microns and aspect ratios that are approaching 1: 1. These requirements are well within the capabilities of electrodeposition technology. The experience of the last decade in using electrodeposition to build thin-film recording heads which have similar and in some respects even more demanding specifications than packaging structures is directly applicable to the needs of packaging. This paper will show the application of resist-pattern plating to fabricating conductors for packaging will discuss the capabilities and limitations of resist-pattern plating plating and will indicate the parameters that need to be understood and controlled for the successful application of electrodeposition technology to microelectronic structures. A multi-level package structure can be considered as a repetition of several conductor and via levels. Each conductor/via level is made by first sputter depositing a seed layer of Cr/Cu in which the Cu is of the order of 2000 A thick. A layer of photoresist is then applied over the seed layer and openings are patterned in the resist to defme the conductor pattern. Electrical contact is now made to the seed layer and the part is immersed in an electroplating solution to deposit Cu in the openings defmed by the resist pattern. The thickness of the deposit is determined by the time and current density of plating the thickness of the photoresist must slightly exceed the desired
Gadopentetate Dimeglumine as a Marker of Renal Function Magnetic Resonance Imaging to Glomerular Filtration Rates (1991)

FRANK, JOSEPH A.*; CHOYKE, PETER L.*,†; AUSTIN, HOWARD A. III‡; GIRTON, MARY E.*; WEISS, GARY§ Author Information
Chemicl Durability of Polycrystalline Materials Produced from Glasses (1963)

Glasses of the compositions, Li2O⋅1.5SiO2, Li2O⋅2SiO2, Li2O⋅3SiO2, and Li2O⋅3SiO2⋅0.1 MmOn (MmOn=Na2O, K2O, Al2O3 or ZrO2) in mole ratio, each with or without platinum, were prepared in a form of rectangular plate of 20×40×2mm. After polished with 1500-grit Al2O3 powder to make smooth surfaces, these glasses were repeated up to 900°C at the constant rate of 5°C/min. The polycrystalline materials thus obtained were exposed to various solutions, mainly to 5% HCl solution of 90°±2°C for various times. The chemical durability was reported in terms of weight loss per unit surface exposed. Identification of crystalline phases in the specimens by an X-ray diffractometer and electron microscopicobservation of the surface of specimens were made before and after the durability test in order to correlate the durability to the microstructure of the crystallized specimens.The results obtained were summarized as follows:1) Effects of the basic composition.For the two component system, i.e., Li2O⋅1.5SiO2, Li2O⋅2SiO2, and Li2O⋅3SiO2, the durability, in general, increased with the increase in SiO2 content, regardless of the presence of Pt. The durability of the crystallized specimens was much higher than that of their mother glasses. An exception was the Li2O⋅2SiO2 crystallized specimen without Pt, which showed the very poor durability.2) Effects of the addition of Pt.The poor durability of the specimen above described was found to be due to the presence of micro-cracks on the surface of the crystallized specimen. The addition of Pt as a nucleating agent in an appropriate amount (0.005-0.01% in weight) was found effective for suppressing the development of the cracks during reheating, thus improving the durability.3) Effects of addition of the third components.Of the four components, e. g., Na2O, K2O, Al2O3, and ZrO2, Na2O and K2O lowered the durability markedly. This was attributed to the concentration of these components in crystal grain boundaries (matrix glass) of the crystallized specimens, which was confirmed by an electron microscope. The matrix glass was easily attacked by 5% HCl.4) Effects of the kind of test reagent.The durability to various test reagents such as pure water, 5% H2SO4, 5% NaCl, 5% NaOH and 5% Na2CO3, besides 5% HCl, was also measured with the glass of the composition Li2O⋅3SiO2 with 0.01% Pt. In general, the attack of the alkaline solutions was much more severe than that of pure water and the acid solutions.
Determination of yield bounds prior to routing (2003)

Integrated circuit manufacturing complexities have resulted in decreasing product yields and reliabilities. This process has been accelerated with the advent of very deep sub-micron technologies coupled with the introduction of newer materials and technologies like copper interconnects, silicon-on-insulator and increased wafer sizes. The need to improve product yields has been recognized and currently some yield enhancement techniques are used in industry CAD tools. Still, the significant increase in problem size implies that considerable time and effort can be saved if the designer could predict the yield of each design stage. In this paper we undertake an effort to derive bounds on the yield of the routing for a given placement. When the design is routed, resulting in a yield which is significantly smaller than the bound, the designer can choose to change the router cost functions, modify the placement or even re-design the unit in an attempt to increase the yield. We compare the bounds on yield obtained for a set of standard benchmarks against exact yield values for the "vanilla" routings, and the run times needed to calculate the two. The results indicate that reasonably good estimates of yield can be obtained in significantly lower amounts of run time. The accuracy of the estimates increases when larger designs are considered as the simplifying assumptions made and the model no longer influences the estimates significantly.
Lifelong Exercise and Mild (8%) Caloric Restriction Conserve Cell Morphology of the Plantaris in the Aging Fischer‐344 Rat (2006)

Sarcopenia is a reduction of skeletal muscle mass as a result of reduced muscle fiber cross‐sectional area and fiber number, resulting in impaired contractile function. Exercise training, either resistive or endurance ameliorates sarcopenia in aging muscle. Recent data indicate that moderate caloric restriction (30–40%) conserves skeletal muscle fiber cross‐sectional area, and fiber number, particularly in muscle with a high % of fast‐twitch fibers. We tested the hypothesis that 8% CR or lifelong wheel running + 8% CR would conserve fiber morphology in the plantaris muscle. We divided male Fischer‐344 rats at 11 weeks into four groups: fed ad libitum until 6 mo. old (6AL, n=12); fed ad libitum until 24 mo. old (24AL, n=11); 8% caloric restriction from 11 wk to 24 mo of age (24CR, n=12); wheel running from 11 wk to 24 mo. with 8% caloric restriction (24ExCR, n=12). Aging increased the number of plantaris fibers/μm2 in 24AL; however, fiber number/μm2 was similar in both 24CR and 24ExCR to 6AL. Mean plantaris fiber cross‐sectional area decreased markedly in 24 AL compared with 6 AL; however, fiber area in 24 CR and 24 ExCR significantly greater than 24AL. In addition, 24CR and 24ExCR protected against the large increase (+373%) in connective tissue found in 24 AL plantaris when compared with 6AL. These results support the hypothesis that lifelong voluntary exercise and mild caloric restriction preserve fast‐twitch muscle morphology in the aging plantaris. Supported by an NIH Grant R01AG17994‐01
The PixFEL front-end for X-ray imaging in the radiation environment of next generation FELs (2017)

In the framework of the PixFEL project, a processing channel for pixel sensor readout has been designed and fabricated in a 65 nm CMOS technology. The detector under development is aimed at applications to coherent X-ray diffraction imaging (CXDI) at the next generation free electron lasers (FELs). Especially in the detector region around the hole for the unscattered photon beam, pixels will be subjected to huge doses of ionizing radiation, in the order of tens of Grad(SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ), during their lifetime. The total ionizing dose (TID) for the frontend electronics, while significantly reduced by the shielding effect of the detector, is still expected to exceed one Grad(SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ). This paper investigates the performance degradation in the PixFEL readout circuit, in particular in the charge sensitive amplifier, after exposure to X-ray doses up to 100 Mrad(SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ).
Effects of<i>d</i>-band hole doping on electronic structure, magnetism, and superconductivity in Fe- and Co-doped<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">MgCNi</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math> (2002)

Electronic structures and magnetism of the nonoxide perovskite ${\mathrm{MgCNi}}_{3\ensuremath{-}x}{T}_{x}$ compounds $(x=0$, 1, 2, and 3; $T=\mathrm{Co}$ and Fe), based on recently found superconducting ${\mathrm{MgCNi}}_{3},$ have been investigated with first-principles all-electron full-potential linearized augmented plane-wave calculations within the local-(spin) density approximation. From the results of total-energy calculations, it is expected that (i) the suppression of superconductivity occurs faster for the Fe-doped case than for the Co-doped case with increase of x, and (ii) ferromagnetic transitions occur when $x>~2$ for the Co-doped cases, while the Fe-doped cases become ferromagnetic before $x=2.$ From the calculated density of states, it is found that the superconductor ${\mathrm{MgCNi}}_{3}$ becomes paramagnetic and then ferromagnetic, as we increase the number of minority spin d-band holes via Co and Fe doping at Ni sites. A hypothetical system, MgC(FeCoNi), has also been calculated and found to be ferromagnetic with magnetic moments of $0.97,$ $0.24,$ and $0.03 {\ensuremath{\mu}}_{B}$ for Fe, Co, and Ni, respectively, which are roughly proportional to the number of d-band holes of minority spin. These features are well explained by d-band spin splitting, as in conventional metallic ferromagnets.
Organizational Improvements to Enhance Modern Clinical Epidemiology (2008)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA HomeNew OnlineCurrent IssueFor Authors Podcasts Clinical Reviews Editors' Summary Medical News Author Interviews More Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA journal
New finite difference schemes for the analysis of planar optical waveguides (1991)

The importance of the numerical simulation of integrated optics devices for optical telecommunication systems is constantly growing and much attention is being devoted to the development of new powerful and effective numerical codes for solving the paraxial wave equation for planar structures. However, the numerical techniques so far presented are not completely satisfactory because they are time consuming, and their accuracy have not been well assessed; moreover they make use of approximated boundary conditions and do not seem to be able to treat conveniently longitudinally variant geometries.
Cooperation Between Decay-Accelerating Factor and Membrane Cofactor Protein in Protecting Cells from Autologous Complement Attack (2000)

Decay-accelerating factor (DAF or CD55) and membrane cofactor protein (MCP or CD46) function intrinsically in the membranes of self cells to prevent activation of autologous complement on their surfaces. How these two regulatory proteins cooperate on self-cell surfaces to inhibit autologous complement attack is unknown. In this study, a GPI-anchored form of MCP was generated. The ability of this recombinant protein and that of naturally GPI-anchored DAF to incorporate into cell membranes then was exploited to examine the combined functions of DAF and MCP in regulating complement intermediates assembled from purified alternative pathway components on rabbit erythrocytes. Quantitative studies with complement-coated rabbit erythrocyte intermediates constituted with each protein individually or the two proteins together demonstrated that DAF and MCP synergize the actions of each other in preventing C3b deposition on the cell surface. Further analyses showed that MCP's ability to catalyze the factor I-mediated cleavage of cell-bound C3b is inhibited in the presence of factors B and D and is restored when DAF is incorporated into the cells. Thus, the activities of DAF and MCP, when present together, are greater than the sum of the two proteins individually, and DAF is required for MCP to catalyze the cleavage of cell-bound C3b in the presence of excess factors B and D. These data are relevant to xenotransplantation, pharmacological inhibition of complement in inflammatory diseases, and evasion of tumor cells from humoral immune responses.
Tone Bender: A collaborative activity for signal processing education &amp; psychoacoustic data collection (2011)

Collaborative web-based activities can serve as a cogent method for large-scale, psychoacoustic data collection. The advancing maturity of web-based platforms makes it feasible to rapidly develop entertaining games that can collect information on specific tasks, such as audio and image annotation, on a large scale. The accessibility and entertainment value of these games make them attractive to educators as well, since they promote interactive learning methods through gaming. To this end, we have developed Tone Bender, a collaborative activity developed for signal processing education and data collection on the perception of musical instruments. In this paper, we describe how Tone Bender collects perceptual information from players and provide sample lessons for K-12 curricula using the game as an educational platform.
A rapid and efficient method for the isolation of distinct human regulatory T cell populations using combinations of antibody mediated buoyant density centrifugation and/or column-free immunomagnetic cell separation (143.41) (2010)

Abstract Regulatory T cells (Tregs) are a specialized subset of T cells that play a key role in immune regulation. Harnessing the suppressive function of Tregs is a major area of interest as they hold great potential for the treatment of autoimmune disorders. The first step towards quality Treg research is the isolation of highly purified, functional Tregs. With unique cell isolation platforms, STEMCELL has developed a full range of products for the rapid and efficient isolation of highly functional Tregs from virtually any peripheral blood sample. RosetteSep is an antibody mediated buoyant density centrifugation method used to isolate unlabelled cells specifically from whole blood or buffy coat samples. EasySep is an immunomagnetic cell separation method used to isolate cells from fresh or previously frozen PBMCs. Treg pre-enrichment is achieved by antibody mediated crosslinking of unwanted cells to either red blood cells (RosetteSep) or magnetic particles (EasySep) allowing their removal by Ficoll centrifugation or magnetic separation, respectively. RosetteSep or EasySep pre-enriched Treg populations consist of CD4+, CD4+CD127low or CD4+CD127lowCD49d- T cells. Pre-enriched Tregs can be further purified using EasySep positive selection to isolate Tregs expressing high levels of cell surface CD25. Purities of 85% +/- 10% CD4+CD25highFOXP3+ human Tregs can be achieved depending on the Treg population. From start to finish, Treg isolations can be completed in less than 3 hours.