gebhart/patrepeval huggingface dataset:
Effects of tertiary amines and quaternary ammonium halides in polysulfone on membrane gas separation properties (2018)

ABSTRACT Polymers containing CO 2 ‐philic groups are of great interest for CO 2 /light gas separation membranes because the affinity toward CO 2 can effectively increase CO 2 solubility and thus permeability. In this study, polysulfones (PSUs) modified with different degrees of benzyldimethylamine (DMA), benzyltrimethylammonium fluoride (TMAF), and benzyltrimethylammonium iodide (TMAI) were synthesized using sequential post‐functionalization reactions and investigated for CO 2 /N 2 and CO 2 /CH 4 separation. The physical properties of these polymers were studied, including density, fractional free volume, and glass transition temperature. In contrast to the conventional wisdom that tertiary amines exhibit an affinity toward CO 2 , this study convincingly shows that the DMA substituent has a minimal impact on CO 2 solubility and CO 2 /light gas solubility selectivity in PSUs under dry condition. On the other hand, incorporating TMAF and TMAI in PSU significantly increases CO 2 solubility. Particularly, introducing TMAI with a molar ratio of 1.07 relative to PSU repeating units increases CO 2 /CH 4 solubility from 4.4 to 5.2, CO 2 /CH 4 permeability selectivity from 21 to 45, and CO 2 /N 2 permeability selectivity from 24 to 33 at 35 °C, while the CO 2 permeability decreases from 5.6 to 1.7 Barrers. The effect of these functional groups in PSUs on gas diffusivity and diffusivity selectivity can be satisfactorily described by the free volume model. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2018 , 56 , 1239–1250
Neoplastic Transformation of Human Epidermal Keratinocytes by AD12-SV40 and Kirsten Sarcoma Viruses (1985)

Recent investigations have begun to dissect the number and nature of genetic alterations associated with cancer cells. In the present study, primary human epidermal keratinocytes acquired indefinite life-span in culture but did not undergo malignant conversion in response to infection with a hybrid of adenovirus 12 and simian virus 40. Addition of Kirsten murine sarcoma virus, which contains a K-ras oncogene, to these cells induced morphological alterations associated with the acquisition of neoplastic properties. These findings demonstrate the malignant transformation of human primary epithelial cells in culture and support a multiple-step process for neoplastic conversion.
<title>Adapted waveform analysis, wavelet packets, and local cosine libraries as a tool for image processing</title> (1993)

Adapted wave form analysis, refers to a collection of FFT like adapted transform algorithms. Given an image these methods provide special matched collections of templates (orthonormal bases) enabling an efficient coding of the image. Perhaps the closest well known examples of such coding method is provided by musical notation, where each segment of music is represented by a musical score made up of notes (templates) characterized by their duration, pitch, location and amplitude, our method corresponds to transcribing the music in as few notes as possible. The extension of images and video is straightforward. We describe the image by collections of oscillatory patterns of various sizes, locations and amplitudes using a variety of orthogonal bases. These selected basis functions are chosen inside predefined libraries of oscillatory localized functions (trigonometric and wavelet-packets waveforms) so as to optimize the number of parameters needed to describe our object. These algorithms are of complexity N log N opening the door for a large range of applications in signal and image processing, such as compression, feature extraction denoising and enhancement. In particular we describe a class of special purpose compressions for fingerprint images, as well as denoising tools for texture and noise extraction.
Utilization of the Coronary Balloon-Expandable Coil Stent Without Anticoagulation or Intravascular Ultrasound (1996)

Patients who receive the coronary balloon-expandable coil stent with optimal angiographic results without intravascular ultrasound guidance can be managed safely with a combination of aspirin and ticlopidine without anticoagulation.
Circumferential wave propagation in a fluid filled borehole: Experiment (1983)

Circumferential wave propagation measurements were made in an 8-in-diam, water-filled, cylindrical borehole in a limestone block. The bulk compressional and shear speeds of the limestone were faster than the compressional speed in water. Transmission measurements were made as a function of circumferential angle from a source to a receiver both of which were located at the borehole wall. The broadband measurements were centered at 80 kHz. From the time waveforms, arrivals due to circumferentially propagating compressional, pseudo-Rayleigh and Stonely waves can be identified as well as direct and multiply reflected fluid arrivals. A direct measurement of the velocity dispersion in the pseudo-Rayleigh arrival was made. The measured velocity increased with frequency and approached the speed of the pseudo-Rayleigh wave of the planar interface case. The time waveform arrival structure and the velocity dispersion of the arrivals are shown to be in good agreement with the predictions of the theory described in the previous paper.
Religion och dagspress: utvecklingstendenser under efterkrigstiden (1999)

Uppsatsen ger nagra data fran ett projekt som redovisats tidigare i annat sammanhang (Cultural Indicators: An International Symbosium, ed. G. Melischek, K.E. Rosengren, J. Stappers, Wien 1984, s. 177-194). De anfors som illustration till resonemang om bru
Prostaglandin EP receptors: Targets for treatment and prevention of colorectal cancer? (2004)

The importance of the prostaglandin (PG) synthesis pathway, particularly the rate-limiting enzymatic step catalyzed by cyclooxygenase, to colorectal carcinogenesis and development of novel anticolorectal cancer therapy is well established. The predominant PG species in benign and malignant colorectal tumors is PGE2. PGE2 acts via four EP receptors termed EP1 to EP4. Recently, EP receptors have been identified as potential targets for treatment and/or prevention of colorectal cancer. This review summarizes existing knowledge of the expression and function of the EP receptor subtypes in human and rodent intestine during tumorigenic progression and describes the current literature on targeting EP receptor signaling during intestinal tumorigenesis.
Rank-Based Similarity Search: Reducing the Dimensional Dependence (2014)

This paper introduces a data structure for k-NN search, the Rank Cover Tree (RCT), whose pruning tests rely solely on the comparison of similarity values; other properties of the underlying space, such as the triangle inequality, are not employed. Objects are selected according to their ranks with respect to the query object, allowing much tighter control on the overall execution costs. A formal theoretical analysis shows that with very high probability, the RCT returns a correct query result in time that depends very competitively on a measure of the intrinsic dimensionality of the data set. The experimental results for the RCT show that non-metric pruning strategies for similarity search can be practical even when the representational dimension of the data is extremely high. They also show that the RCT is capable of meeting or exceeding the level of performance of state-of-the-art methods that make use of metric pruning or other selection tests involving numerical constraints on distance values.
Localization of a conserved epitope and an azurin‐like domain in the H.8 protein of pathogenic <i>Neisseria</i> (1987)

The pathogenic neisseriae, Neisseria gonorrhoeae and Neisseria meningitidis, possess an outer membrane protein, H.8, which contains a conserved monoclonal antibody (MAb)-binding epitope in all strains tested. We have cloned and sequenced a meningococcal H.8 gene, and determined the characteristics of the predicted protein. The predicted signal peptide has features characteristic of a prokaryotic lipoprotein. The region at the N-terminal end of the mature protein (39 amino acids) is primarily composed of alanine, glutamate and proline residues arranged in imperfect repeats with the consensus sequence AAEAP. The epitope for H.8 MAb-binding was localized to a 20-amino-acid sequence within this region. The remainder of the predicted amino acid sequence shows extensive homology to azurins, which are small blue copper-binding proteins found in a limited number of species of pathogenic bacteria.
The Implementation of Error Correction in ATM System (2010)

The researches on CRC mainly focus on error detection, seldom on the function of error correction. ATM is the core technology of B-ISDN which makes use of cyclic redundancy code to detect and correct the errors. ATM switching system generally adopts CRC to correct a single bit error in the cell header. Based on introducing the essential method of generating CRC, this paper analyses the process of correcting a single bit error in the cell header of the ATM system in detail.
Morphological properties of atmospheric aerosol aggregates (2001)

Ultrafine particles (smaller than about 0.1 microm) are often emitted from combustion and other high-temperature processes in the form of fractal-like aggregates composed of solid nanoparticles. Results of a study of atmospheric aggregates are reported. Particles were collected on transmission electron microscope grids fitted on the last two stages of a single-jet eight-stage low-pressure impactor for periods of a few minutes. Photomicrographs of transmission electron microscope grids from the impactor stages were analyzed to obtain the fractal dimension (D(f)) and prefactor (A) for aggregates. D(f) increased from near 1 to above 2 as the number of primary particles making up the aggregates increased from 10 to 180. Total particle concentrations in size ranges roughly equivalent to the low-pressure impactor stages were measured with a mobility analyzer and condensation particle counter. In one set of measurements, the fraction of the particles present as aggregates was about 60% for particles with aerodynamic diameters between 50 and 75 nm and 34% for the range 75 to 120 nm. The total aggregate concentration in the 50- to 120-nm size range was about 400 ml(-1). The primary particles that make up atmospheric aggregates are more polydisperse than soot aggregates generated from a single laboratory source, an ethane/oxygen flame. Most measurements were made in the Los Angeles area, where the aggregates may represent a signature for diesel emissions. Rural aggregate concentrations in the size range 50 to 120 nm were less than 1% of the concentrations at urban sites. The data will permit better estimates of atmospheric aggregate residence times, transport, and deposition in the lung, optical extinction, and heterogeneous nucleation.
Direct and Transfer Hydrosilylation Reactions Catalyzed by Fully or Partially Fluorinated Triarylboranes: A Systematic Study (2015)

The present survey serves several purposes. Selected electron-deficient boron Lewis acids catalyze the release of hydrosilanes from cyclohexa-2,5-dien-1-yl-substituted silanes. The two-step process consists of a hydride abstraction to generate a silicon-stabilized Wheland complex and capture of the arene-stabilized silicon cation by the borohydride formed in the previous step. The same boron catalyst will then activate the Si–H bond for the reaction with representative π- and σ-donating substrates, alkenes/alkynes and ketones/ketimines, respectively. The net transformation is a transfer hydrosilylation, and the effect that the substitution pattern of the cyclohexa-1,4-diene core and the subsituents at the silicon atom exert on these hydrosilane surrogates is systematically investigated. The results are compared with those obtained employing the hydrosilane directly. Another part of this comprehensive analysis is dedicated to the comparison of literature-known fully or partially fluorinated triarylboranes in both the direct and the transfer hydrosilylation of the aforementioned substrates. The data are tabulated and color-coded, finally providing an overview of promising substrate/reductant/borane combinations. The often different reactivities of π- and σ-basic substrates are explained, and it is shown that the Lewis acidity of the boron atom, estimated by the Gutmann–Beckett method, is not the only decisive feature of these boron Lewis acids. Practical mechanistic models are presented to rationalize the interplay between the Lewis acidity and steric situation at the boron and, likewise, the silicon atom as well as the need for fluorination ortho to the boron atom in certain cases.
Automatic Determination of Validity of Input Data Used in Ellipsoid Fitting MARG Calibration Algorithms (2013)

Ellipsoid fitting algorithms are widely used to calibrate Magnetic Angular Rate and Gravity (MARG) sensors. These algorithms are based on the minimization of an error function that optimizes the parameters of a mathematical sensor model that is subsequently applied to calibrate the raw data. The convergence of this kind of algorithms to a correct solution is very sensitive to input data. Input calibration datasets must be properly distributed in space so data can be accurately fitted to the theoretical ellipsoid model. Gathering a well distributed set is not an easy task as it is difficult for the operator carrying out the maneuvers to keep a visual record of all the positions that have already been covered, as well as the remaining ones. It would be then desirable to have a system that gives feedback to the operator when the dataset is ready, or to enable the calibration process in auto-calibrated systems. In this work, we propose two different algorithms that analyze the goodness of the distributions by computing four different indicators. The first approach is based on a thresholding algorithm that uses only one indicator as its input and the second one is based on a Fuzzy Logic System (FLS) that estimates the calibration error for a given calibration set using a weighted combination of two indicators. Very accurate classification between valid and invalid datasets is achieved with average Area Under Curve (AUC) of up to 0:98.
High-frame-rate intensified fast optically shuttered TV cameras with selected imaging applications (1994)

This paper focuses on high speed electronic/electro-optic camera development by the Applied Physics Experiments and Imaging Measurements Group (P-15) of Los Alamos National Laboratory's Physics Division over the last two decades. The evolution of TV and image intensifier sensors and fast readout fast shuttered cameras are discussed. Their use in nuclear, military, and medical imaging applications are presented. Several salient characteristics and anomalies associated with single-pulse and high repetition rate performance of the cameras/sensors are included from earlier studies to emphasize their effects on radiometric accuracy of electronic framing cameras. The Group's test and evaluation capabilities for characterization of imaging type electro-optic sensors and sensor components including Focal Plane Arrays, gated Image Intensifiers, microchannel plates, and phosphors are discussed. Two new unique facilities, the High Speed Solid State Imager Test Station and the Electron Gun Vacuum Test Chamber are described. A summary of the Group's current and developmental camera designs and R&D initiatives are included.
Topical corticosteroids for atopic eczema: clinical and cost effectiveness of once-daily vs. more frequent use (2005)

This review has not identified any clear differences in outcomes between once-daily and more frequent application of topical corticosteroids. We would encourage prescribing clinicians to consider the once-daily use of topical corticosteroids when making treatment decisions for patients with atopic eczema. However, we find that the literature on clinical effectiveness is limited and a broader understanding of compliance and phobia associated with topical steroids is needed to inform on this issue.
Metal Chelates of Phenylhydrazonothenoyltrifluoroacetone (1993)

Department of Chemistry, University of Calicut, Kerala-673 635 <em>Manuscript received 10 March 1992, revised 16 October 1992, accepted 12 November 1992</em> Metal Chelates of Phenylhydrazonothenoyltrifluoroacetone
Manufacturability analysis to combine additive and subtractive processes (2010)

Purpose The purpose of this paper is to propose a methodology to estimate manufacturing complexity for both machining and layered manufacturing. The goal is to take into account manufacturing constraints at design stage in order to realize tools (dies and molds) by a combination of a subtractive process (high‐speed machining) and an additive process (selective laser sintering). Design/methodology/approach Manufacturability indexes are defined and calculated from the tool computer‐aided design (CAD) model, according to geometric, material and specification information. The indexes are divided into two categories: global and local. For local indexes, a decomposition of the tool CAD model is used, based on an octree decomposition algorithm and a map of manufacturing complexity is obtained. Findings The manufacturability indexes values provide a well‐detailed view of which areas of the tool may advantageously be machined or manufactured by an additive process. Originality/value Nowadays, layered manufacturing processes are coming to maturity, but there is still no way to compare these new processes with traditional ones (like machining) at the early design stage. In this paper, a new methodology is proposed to combine additive and subtractive processes, for tooling design and manufacturing. A manufacturability analysis is based on an octree decomposition, with calculation of manufacturing complexity indexes from the tool CAD model.
Zeolite-in-metal membranes: preparation and testing (1994)

By galvanic metal deposition, silicalite crystals have been embedded in silver or nickel foils; the resulting composites are self-supporting high-temperature membranes (thermally stable up to 650 K) and have been tested by permeation/pervaporation studies of a binary n-heptane–toluene mixture; a separation factor αtol/n-C7ca. 4 ± 1.5 is found over a wide temperature range.
THE MEASUREMENT OF SUBSURFACE RESIDUAL STRESS AND COLD WORK DISTRIBUTIONS IN NICKEL BASE ALLOYS (1987)

A method of determining the diffraction peak width accurately and rapidly in conjunction with x-ray diffraction residual stress measurement using Pearson VII function profile analysis is described. An empirical relationship between the (420) diffraction peak width and the degree of cold work is developed for four nickel base alloys. The peak width produced was found to be independent of the method of deformation. Examples of the concurrent determination of subsurface residual stress and cold work distributions are presented for samples of abraded and shot peened Inconel 718 and ground Inconel 600. X-RAY DIFFRACTION TECHNIQUES can be used to determine both macroscopic and microscopic
A Double-masked, Randomized Study to Investigate the Safety and Efficacy of Daclizumab to Treat the Ocular Complications Related to Behçet's Disease (2007)

The observed results in the placebo group demonstrate that careful follow-up and treatment with standard combination immunosuppressive therapy can be effective for the management of the ocular complications of Behçet's disease. In our small study, there was no suggestion that daclizumab was beneficial in comparison with placebo. However, the low observed attack rate limited our ability to make a definitive treatment group comparison.
Design and Implementation C Based Lightweight Component Framework (2006)

The resource-limited embedded devices such as a wearable computer use battery power and have limited system resource. The software for these systems must be developed as dynamically reconfigurable component-based system to save the memory space. In this study, we design and implement the ANSI C-language-based, lightweight component framework that can dynamically install software components and reconfigure the system according to the requirement of application programs. The component manager which is the core of the component framework is only 23-Kbyte long. Therefore, the implemented component framework reduces the overall resource requirement and making it suitable for a resource-limited embedded system
Xyloglucan and xyloglucan endo-transglycosylases (XET): Tools for<i>ex vivo</i>cellulose surface modification (2006)

Wood fibres constitute a renewable raw material for the production of novel biomaterials. The development of efficient methods for cellulose surface modification is essential for expanding the properties of wood fibres for increased reactivity and compatibility with other materials. By combining the high affinity between xyloglucan and cellulose, the unique mechanistic property of xyloglucan endo-transglycosylases (XET, EC 2.4.1.207) to catalyze polysaccharide-oligosaccharide coupling reactions, and traditional carbohydrate synthesis, a new system for the attachment of a wide variety of functional groups to wood pulps has been generated. An overview of recent developments is presented in the context of the structure, physical properties, and historical applications of xyloglucan.
ALKALOIDS FROM <i>SANGUINARIA CANADENSIS</i> AND THEIR INFLUENCE ON GROWTH OF <i>PHYMATOTRICHUM OMNIVORUM</i> (1939)

Sanguinaria canadensis L. is reported by Taubenhaus and Ezekiel (6) to be highly resistant to the Phymatotrichum root rot. It has long been of interest on account of its alkaloidal content. Dana (1) isolated the alkaloid, sanguinarine, from this species in 1827. Since that time chelerythrine, protopine, and ?and ?-homochelidonine have been isolated from the rhizome and roots (5). For these reasons this plant seems an exceptionally good object for investigation in connection with the theory of alkaloids as a possible factor in the resistance of some plants to Phymatotrichum omnivorum (Shear) Duggar (3, 4). In the work reported here certain alkaloids were isolated from crude extracts of roots and rhizomes of S. canadensis and incorporated in various concentrations into the substrates ordinarily used for the pure culture of P. omnivorum. The effect of these substances on the growth and development of the fungus are discussed.
Hybrid binary optic/cylinder lens array for collimation of diode laser arrays (1995)

The design, fabrication, and testing of a collimating lens array is discussed. The lens array is a hybrid design using a cylinder lens along with a binary optic element array. The binary optics were made on silicon dioxide substrates, patterned with a contact print excimer laser mask aligner and reactive ion etched. The lens array is designed to collimate 100 individual laser sources on a 100-micrometers pitch. The 1-cm lens array collimates lasers array sources laterally (along the axis of the array) using only the binary optic elements. In the other highly divergent axis of the diode laser array, the lens array corrects cylinder lens aberrations with the binary optic elements and does the gross collimation with the cylinder lens. The results were 50 percent transmission and 50 percent Strehl ratio, both very disappointing. Possible causes of the poor performance are in both design and fabrication.