gebhart/patrepeval huggingface dataset:
Multi View reconstruction and Camera Recovery (2001)

This paper presents a linear algorithm for the simultaneous computation of 3D points and camera positions from multiple perspective views, based on having four points on a reference plane visible in all views. The reconstruction and camera recovery is achieved, in a single step, by finding the null-space of a matrix using singular value decomposition. Unlike factorization algorithms, the presented algorithm does not require all points to be visible in all views. By simultaneously reconstructing points and views the numerically stabilizing effect of having wide spread cameras with large mutual baselines is exploited. Experimental results are presented for both finite and infinite reference planes. An especially interesting application of this method is the reconstruction of architectural scenes with the reference plane taken as the plane at infinity which is visible via three orthogonal vanishing points. This is demonstrated by reconstructing the outside and inside (courtyard) of a building on the basis of 35 views in one single SVD.
Potentiation of Barbiturate Hypnosis by Certain Uncoupling Agents. (1958)

It has been demonstrated that certain uncoupling agents increase the hypnotic effects of certain barbiturates. Potentiation by uncoupling agents is not the result of inhibition of detoxication mechanisms nor is epinephrine release implicated since the effect is not prevented by adrenergic blocking agents. The nature of this effect and its relationship to the mechanism of action of the barbiturates is discussed.
Nuclear Morphometric Analysis of Leydig Cells of Male Pubertal Rats Exposed <i>In Utero</i> to Di(<i>n</i>-butyl) Phthalate (2013)

We recently reported that prenatal rat exposure to di(n-butyl) phthalate (DBP) induced Leydig cell (LC) hyperplasia after nine weeks (wks) of age, yet the number of LCs was similar to that of the vehicle group until seven weeks. Nuclear pleomorphism of hyperplastic LCs is common and is considered to be continuous progressive degeneration. Thus, computer-assisted image cell nuclear analysis of LCs was performed on 5- and 7-wk-old Sprague-Dawley (SD) rats whose dams had been administered DBP (i.g.) at 100 mg/kg/day or vehicle (corn oil) on gestation day 12 to 21. The results of the 5-wk-old DBP group were similar to those of the vehicle group; LC nuclei of the 7-wk-old DBP group showed normal ploidy and similar amounts of DNA. However, the size, elongation and peripheral chromatin aggregation parameters were significantly higher, and the reticular chromatin distribution and isolated chromatin aggregation parameters were significantly lower compared with the vehicle group. The present study quantitatively demonstrated nuclear morphological alterations in rat LCs at 7 wks old (puberty) due to the prenatal DBP administration before apparent LC hyperplasia developed.
Treatment of mild to moderate facial melasma with the Lumixyl topical brightening system. (2012)

Results suggest that this regimen may be a useful new tool to treat mild to moderate melasma.
An incremental approach to structural testing of concurrent software (1996)

Structural testing of a concurrent program P involves the selection of paths of P according to a structure-based criterion. A common approach is to derive the reachability graph (RG) of P, select a set of paths of P, derive one or more inputs for each selected path, and force deterministic executions of P according to the selected paths and their inputs. The use of RG(P) for test path selection has the state explosion problem, since the number of states of RG(P) is an exponential function of the number of processes in P.In this paper, we present a new incremental approach to structural testing of P. Based on the hierarchy of processes in P, our incremental testing approach is to integrate processes in P in a bottom-to-top manner. When a set S of processes in P at the same level are integrated, we construct a reduced RG for S such that the reduced RG contains all synchronizations involving the processes in S and some of the synchronizations involving processes at lower levels in order to connect synchronizations involving processes in S. Based on the reduced RG for S, we can select test paths to focus on the detection of interface faults involving processes in S. After the selection of paths, RG(S) is further reduced in order to retain only some of the synchronizations involving processes in S that are needed in order to connect synchronizations between S and other processes in P. Our incremental approach alleviates the state explosion problem and offers other advantages.
Optimal mode selection in Internet video communication: an end-to-end approach (2002)

We present an end-to-end approach to generalize the classical theory of rate distortion (R-D) optimized mode selection for point-to-point video communication. We introduce a notion of global distortion by taking into consideration of both the path characteristics and the receiver behavior, in addition to the source behavior. We derive, for the first time, a set of accurate global distortion metrics for any packetization scheme. Equipped with the global distortion metrics, we design an R-D optimized mode selection algorithm to provide the best trade-off between compression efficiency and error resilience. As an application, we integrate our theory with point-to-point MPEG-4 video conferencing over the Internet. Simulation results conclusively demonstrate that our end-to-end approach offers superior performance over the classical approach for Internet video conferencing.
Selection of lumped element models for coupled lossy transmission lines (1992)

A practical method is developed for selecting the minimal number of lumped elements needed to represent a lossy transmission line if a certain accuracy is desired in a well-defined frequency range. This method, which uses dimensionless transmission line parameters, can be used in a wide range of applications and is also extended to hybrid equivalent circuits, consisting of ideal single lossless lines and resistors. For completeness, a lumped element model for coupled lossy lines is presented which uses the same dimensionless parameters and the same criteria as proposed for single lines. An example of coupled transmission line structure including skin-effect losses illustrates the approach.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Solution structure of an RNA fragment with the P7/P9.0 region and the 3???-terminal guanosine of the Tetrahymena group I intron (2002)

In the second step of the two consecutive transesterifications of the self-splicing reaction of the group I intron, the conserved guanosine at the 3' terminus of the intron (omegaG) binds to the guanosine-binding site (GBS) in the intron. In the present study, we designed a 22-nt model RNA (GBS/omegaG) including the GBS and omegaG from the Tetrahymena group I intron, and determined the solution structure by NMR methods. In this structure, omegaG is recognized by the formation of a base triple with the G264 x C311 base pair, and this recognition is stabilized by the stacking interaction between omegaG and C262. The bulged structure at A263 causes a large helical twist angle (40 +/- 80) between the G264 x C311 and C262 x G312 base pairs. We named this type of binding pocket with a bulge and a large twist, formed on the major groove, a "Bulge-and-Twist" (BT) pocket. With another twist angle between the C262 x G312 and G413 x C313 base pairs (45 +/- 100), the axis of GBS/omegaG is kinked at the GBS region. This kinked axis superimposes well on that of the corresponding region in the structure model built on a 5.0 A resolution electron density map (Golden et al., Science, 1998, 282:345-358). This compact structure of the GBS is also consistent with previous biochemical studies on group I introns. The BT pockets are also found in the arginine-binding site of the HIV-TAR RNA, and within the 16S rRNA and the 23S rRNA.
GLP-1–oestrogen attenuates hyperphagia and protects from beta cell failure in diabetes-prone New Zealand obese (NZO) mice (2014)

GLP-1-oestrogen efficiently protects NZO mice against carbohydrate-induced beta cell failure by attenuation of hyperphagia. In this regard, targeted delivery of oestrogen to the hypothalamus by far exceeds the anorexigenic capacity of GLP-1 alone.
Low Pt Content Catalyst Coated Membrane as Deposited by Plasma Sputtering (2013)

Comm. orale
Quantitative investigation of pick-up performance for UV-curable dicing tape (2018)

It is known that the materials of base film of dicing tapes affects pick-up property, however it is difficult to evaluate pick-up performance quantitatively under die bonding process in manufacturing. In this study, we evaluate dicing tapes with different base film by changing chip thickness and needle layout in order to clarify the influence of base film on pick-up property. In this study, pick-up property is evaluated quantitatively by measuring load and position of needle and collet in real time using load cell and position sensor. According to the results, it is found that the base film flexibility is more critical for pickup performance in case of that the chip thickness is thin or needle layout is located only at the center of chip.
<title>Tolerance and precision study for solder self-assembled MEMS</title> (2000)

Surface tension self-assembly of MEMS has been shown to be an excellent approach for assembling three-dimensional MEMS structures by allowing more precise alignments and vastly increased complexity. This paper investigates and addresses some of the factors that limit the precision of surface tension self-assembly. Each factor can be analyzed and addressed for a simple structure, but for more complex structures, these effects need to be addressed additively and in unison. This paper also discusses, the additive tolerance effects of these structures and present several methods of tolerance analysis. The toleranceing, in conjunction with the precision analysis, will in the future allow for the creation of extremely precise surface tension self-assembled structures, allowing for the creation of MEMS applications that were previously unobtainable using any existing fabrication or packaging process.
X-ray beam metrology and x-ray optic alignment by Hartmann wavefront sensing (2005)

In 2002, first experiments at the Advanced Light Source (ALS) at Berkeley, allowed us to test a first prototype of EUV Hartmann wave-front sensor. Wave-front measurements were performed over a wide wavelength range from 7 to 25 nm. Accuracy of the sensor was proved to be better than &#955;<sub>EUV</sub>/120 rms (&#955;<sub>EUV</sub> = 13.4 nm, about 0.1 nm accuracy) with sensitivity exceeding &#955;<sub>EUV</sub>/600 rms, demonstrating the high metrological performances of this system. At the Swiss Light Source (SLS), we succeeded recently in the automatic alignment of a synchrotron beamline by Hartmann technique. Experiments were performed, in the hard X-ray range (E = 3 keV, &#955; = 0.414 nm), using a 4-actuators Kirkpatrick-Baez (KB) active optic. An imaging system of the KB focal spot and a hard X-ray Hartmann wave-front sensor were used alternatively to control the KB. The imaging system used a genetic algorithm to achieve the highest energy in the smallest spot size, while the wave-front sensor used the KB influence functions to achieve the smallest phase distortions in the incoming beam. The corrected beam achieved with help of the imaging system was used to calibrate the wave-front sensor. With both closed loops, we focused the beam into a 6.8x9 &#956;m<sup>2</sup> FWHM focal spot. These results are limited by the optical quality of the imaging system.
Genetic selection reveals the role of a buried, conserved polar residue (2007)

The burial of nonpolar surface area is known to enhance markedly the conformational stability of proteins. The contribution from the burial of polar surface area is less clear. Here, we report on the tolerance to substitution of Ser75 of bovine pancreatic ribonuclease (RNase A), a residue that has the unusual attributes of being buried, conserved, and polar. To identify variants that retain biological function, we used a genetic selection based on the intrinsic cytotoxicity of ribonucleolytic activity. Cell growth at 30 degrees C, 37 degrees C, and 44 degrees C correlated with residue size, indicating that the primary attribute of Ser75 is its small size. The side-chain hydroxyl group of Ser75 forms a hydrogen bond with a main-chain nitrogen. The conformational stability of the S75A variant, which lacks this hydrogen bond, was diminished by DeltaDeltaG = 2.5 kcal/mol. Threonine, which can reinstate this hydrogen bond, provided a catalytically active RNase A variant at higher temperatures than did some smaller residues (including aspartate), indicating that a secondary attribute of Ser75 is the ability of its uncharged side chain to accept a hydrogen bond. These results provide insight on the imperatives for the conservation of a buried polar residue.
Optimization of automated electron diffraction tomography for challenging applications (2017)

Ten years after the development of automated electron diffraction tomography (ADT) [1, 2] the analysis of the sequentially scanned reconstructed reciprocal space and the use of extracted reflection intensities for direkt crystal structure analysis has gained strong attention in many subjects. Especially in combination with precession electron diffraction allowing for reflection integration (ADT/PED) it was possible to extract fine structural details often explicitly important for physical properties of the material. The variety of nanocrystalline materials solved with ADT on the basis of quasi-kinematical electron diffraction intensity data covers alloys, large cell porous minerals, zeolites, beam-sensitive metal-organic frameworks and small organic molecules. Some originating from single nanocrystals down to 30 nm, strongly agglomerated particles or FIB lamellae. In combination with other approaches like HR-TEM imaging, X-ray diffraction methods analysing reflections (XRPD) or total scattering information (PDF) and neutron diffraction (ND) or spectroscopic measurements like solid state nuclear magnetic resonance (SS-NMR) it was possible to describe the crystal structure solutions gained for twinned, pseudosymmetric or disordered material even more detailed [3]. ADT data can be in principle collected using standard TEMs but in order to collect electron diffraction data in a quality necessary to achieve high-end crystal structure solutions the data collection should be tailored to the material and the problem to be solved. Here we focus on the description of different approaches and the applicability to the various material classes.
Geometric and Physical Constraints for Drone-Based Head Plane Crowd Density Estimation (2018)

State-of-the-art methods for counting people in crowded scenes rely on deep networks to estimate crowd density in the image plane. While useful for this purpose, this image-plane density has no immediate physical meaning because it is subject to perspective distortion. This is a concern in sequences acquired by drones because the viewpoint changes often. This distortion is usually handled implicitly by either learning scale-invariant features or estimating density in patches of different sizes, neither of which accounts for the fact that scale changes must be consistent over the whole scene. In this paper, we explicitly model the scale changes and reason in terms of people per square-meter. We show that feeding the perspective model to the network allows us to enforce global scale consistency and that this model can be obtained on the fly from the drone sensors. In addition, it also enables us to enforce physically-inspired temporal consistency constraints that do not have to be learned. This yields an algorithm that outperforms state-of-the-art methods in inferring crowd density from a moving drone camera especially when perspective effects are strong.
Band‐Like Charge Transport in Phytic Acid‐Doped Polyaniline Thin Films (2021)

Abstract We explore the charge transport properties of phytic acid (PA) doped polyaniline thin films prepared by the surfactant monolayer‐assisted interfacial synthesis (SMAIS). Structural and elemental analysis confirms the inclusion of PA in the thin films and reveals a progressive loss of crystallinity with the increase of PA doping content. Charge transport properties are interrogated by time‐resolved terahertz (THz) spectroscopy. Notably, independently of doping content and hence crystallinity, the frequency‐resolved complex conductivity spectra in the THz region can be properly described by the Drude model, demonstrating band‐like charge transport in the samples and state‐of‐the‐art charge carrier mobilities of ≈1 cm 2 V −1 s −1 . A temperature‐dependent analysis for the conductivity further supports band‐like charge transport and suggest that charge carrier mobility is primarily limited by impurity scattering. This work highlights the potential of PA doped polyaniline for organic electronics.
Data Driven Parameter Optimization Algorithm for RPM Based 3-D Radar Imaging (2019)

Microwave, millimeter wave imaging radar is indefensible sensor for self-driving system because of its applicability even for optically blurred vision, such as in dusty air, thick smog or fog. As a promising radar imaging method, the range points migration (RPM) has been developed, which offers more accurate target shape compared with a general synthetic aperture radar (SAR) imagery. However, its reconstruction accuracy largely depends on several parameters, which are usually determined in an empirical way. To address with the above problem, this paper introduces the Gaussian mixture model (GMM) for the RPM algorithm, where the parameter is automatically optimized by the expectation maximization (EM) algorithm. Furthermore, the large aperture data are appropriately processed without significant increase of computational cost, by introducing the iterative RPM processing and new weight function. The results from finite difference time domain (FDTD) based numerical test, introducing a realistic automobile model, verify that our proposed method achieves an automatic parameter optimization feature in data integration scheme.
Joint damage in rheumatoid arthritis: Lessons learned from an extended 36‐joint ultrasonography and 28‐joint Disease Activity Score assessments (2020)

Severity of ultrasound-detected bone erosions was significantly greater when both positive PD and a greater degree of GS joint inflammation were present in RA. This association was not observed when either component was absent. Single time point ultrasound joint inflammation assessment - and not DAS28 - is reflective of joint damage severity in RA patients.
Wide-field quantitative imaging of intrinsic scatter bio-markers using sub-diffusive structured light (2016)

Sub-diffusive structured light imaging can quantitate the density of scatterers versus their size scale distribution in a wide-field geometry. Phantoms with unique fractal distributions and n=22 fresh human breast specimens are imaged and analyzed.
LEO of III-nitride on Al2O3 and Si substrates (2000)

Lateral epitaxial overgrowth (LEO) has recently become the method of choice to reduce the density of dislocations in heteroepitaxial GaN thin films, and is thus expected to lead to enhanced performance devices. We present here the LEO growth and characterization of GaN films by low pressure metalorganic chemical vapor deposition. Various substrates were used, including basal plane sapphire and oriented Si substrates. The steps in the LEO growth technology will be briefly reviewed. The characterization results will be discussed in detail. The structural, electrical and optical properties of the films were assessed through scanning, atomic and transmission electron microscopy, x-ray diffraction, capacitance-voltage, deep level transient spectroscopy, photoluminescence, and scanning cathodoluminenscence measurements. Single-step and double- step LEO GaN was achieved on sapphire. Similarly high quality LEO grown GaN films were obtained on sapphire and silicon substrates. Clear and dramatic reduction in the density of defects are observed in LEO grown materials using the various characterization techniques mentioned previously.
Diabetes Mellitus and Prevention of Late Myocardial Infarction After Coronary Stenting in the Randomized Dual Antiplatelet Therapy Study (2016)

URL: http://www.clinicaltrials.gov. Unique identifier: NCT00977938.
Role of the MTOC in T Cell Effector Functions (2012)

T cells play important roles in defending the host against infections, in allergic responses, and in the destruction of tumor cells. The directed or focused delivery of effector molecules to another cell is minimally achieved by a two-step process that involves focusing of secretory vesicles around the microtubule-organizing center (MTOC) and movement of the MTOC up to the site of contact with the target cell. This chapter is focused on mechanisms involved in the movement of the MTOC to the target contact site in T cells. Modulated polarization microscopy (MPM) and several other imaging methods were employed to visualize the cytoskeleton in general and in particular, the dynamics of MTOC movement. Understanding the processes of MTOC translocation has important medical ramifications that are addressed in this chapter.
A frequency leakage model for SCA (2014)

This paper introduces a leakage model in the frequency domain to enhance the efficiency of Side Channel Attacks of CMOS circuits. While usual techniques are focused on noise removal around clock harmonics, we show that the actual leakage is not necessary located in those expected bandwidths as experimentally observed by E. Mateos and C.H. Gebotys in 2010. We start by building a theoretical modeling of power consumption and electromagnetic emanations before deriving from it a criterion to guide standard attacks. This criterion is then validated on real experiments, both on FPGA and ASIC, showing an impressive increase of the yield of SCA.
Direct observation of anisotropic magnetic field response of the spin helix in FeGe thin films (2016)

Spiral spin orders often produce various fascinating phenomena via interaction with electronic structures. Examples include, but are not limited to, multiferroicity and skyrmion formation. Among them, a deformed spiral spin structure, which can be viewed as a periodic sequence of 2$\ensuremath{\pi}$ spin-rotation kinks, can exhibit the functionality of information transmission owing to its phase coherence. This is the chiral magnetic soliton lattice (CSL). Here, the authors have succeeded in building a spin spiral in a thin film of the chiral magnet FeGe, and revealed its characteristic magnetic responses. Magnetic anisotropy and boundary conditions inherent to the epitaxial thin film secure the alignment of the spiral winding direction along the film normal, even under external magnetic fields. This constraint leads to the anisotropic deformation of the spin spiral with respect to the magnetic field direction. Especially, the CSL, which is realized under an in-plane magnetic field, transforms with field between states with different numbers of kinks. The authors clearly demonstrate the deformation by direct observation of the spiral propagation vector by use of the small-angle neutron scattering technique.