gebhart/patrepeval huggingface dataset:
Capillary Electrophoresis for the Analysis of Biopolymers (2004)

ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTCapillary Electrophoresis for the Analysis of BiopolymersWes W. C. Quigley and Norman J. DovichiView Author Information Department of Chemistry, University of Washington, Seattle, Washington 98195-1700 Cite this: Anal. Chem. 2004, 76, 16, 4645–4658Publication Date (Web):June 17, 2004Publication History Published online17 June 2004Published inissue 1 August 2004https://pubs.acs.org/doi/10.1021/ac040100dhttps://doi.org/10.1021/ac040100dreview-articleACS PublicationsCopyright © 2004 American Chemical SocietyRequest reuse permissionsArticle Views1058Altmetric-Citations78LEARN 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 SUBJECTS:Capillary electrophoresis,Coating materials,Fluorescence,Genetics,Peptides and proteins Get e-Alerts
<i>N</i>-Benzyl-<i>N</i>,4-dimethylbenzenesulfonamide (2010)

The mol-ecule of the title compound, C(15)H(17)NO(2)S, has a C-S-N-C torsion angle of 71.4 (2)°, and the dihedral angle between the benzene rings is 82.83 (16)°. In the crystal, mol-ecules are linked into chains along the b axis via C-H⋯O hydrogen bonds. A C-H⋯π inter-action is also present in the crystal structure.
Monolithic integration of red, blue, and green lasers for smart projection displays (1997)

Abstract— Novel device structures integrating multiple‐output lasers emitting in red, green, and blue colors are proposed. Active layers emitting red (AlGaAs or InGaAlP), blue (Zn x Cd 1−x Se), and green (Zn y Cd 1−y Se) are shown to be integrated monolithically on GaAs substrates using conventional p‐n tunnel junctions and asymmetric resonant tunneling structures. Both edge‐ and surface‐emitting structures are described. Experimental characteristics of two red‐emitting Al 0.16 Ga 0.84 As‐Al 0.45 Ga 0.55 As‐GaAs lasers, integrated in tandem via a low‐voltage‐drop tunnel junction are presented, demonstrating the feasibility of monolithic integration. Blue‐green lasers are shown to operate at lower voltages using asymmetric resonant tunneling structures between p ‐GaAs/ p ‐ZnSe layers. Integration of surface‐emitting lasers including folded‐cavity and Distributed Bragg Reflector (DBR) structures is also presented along with simulation of electrical and optical characteristics. An integrated pixel‐addressing methodology is described for smart projection displays.
Research on a new crawler type inspection robot for power transmission lines (2010)

The mechanical structure and control system for a new crawler type of robots is presented in this paper. The type of the robot is designed for power transmission line inspections. The new crawler type of the robot is composed of three arms and a balance mechanism, which are all joined together through a base. The distributed and hierarchical control strategy for this new robot is proposed in combination with a rule based expert system for optimal decision making. The proposed control strategy has been organized into three levels hierarchically. Compared with other robot structures, this new type of robot has a simpler structure. It has been proved that this type of new robot has higher efficiency in obstacle crossing through the simulation and experiments operating with the prototype of the model machine. Its intelligent control strategy has demonstrated its competitive advantages. The crawler type inspection robot is a attempt for developing a new robot structure to be used for high voltage power transmission line inspection.
<sup>13</sup>C NMR study of <i>ortho</i>‐, <i>meta</i>‐ and <i>para</i>‐alkoxycarbonylalkyloxychalcones and their α,β‐dibrome derivatives (1989)

Abstract The 13 C NMR spectra of eighteen new derivatives of chalcone have been recorded, calculated and fully assigned. The A i , empirical parameters of the styrylketone, p ‐alkoxycarbonylalkyloxystyrylketone and benzoylethylene group were calculated for the prediction of the chemical shifts of substituted benzenes and chalcones.
Spectroscopic Investigation into Oxidative Degradation of Silica‐Supported Amine Sorbents for CO<sub>2</sub> Capture (2012)

Oxidative degradation characteristics of silica-supported amine sorbents with varying amounts of tetraethylenepentamine (TEPA) and polyethylene glycol (PEG; P(200) or P(600) represents PEG with molecular weights of 200 or 600) have been studied by IR and NMR spectroscopy. Thermal treatment of the sorbents and liquid TEPA at 100 °C for 12 h changed their color from white to yellow. The CO(2) capture capacity of the TEPA/SiO(2) sorbents (i.e., SiO(2)-supported TEPA with a TEPA/SiO(2) ratio of 25:75) decreased by more than 60 %. IR and NMR spectroscopy studies showed that the yellow color of the degraded sorbents resulted from the formation of imide species. The imide species, consisting of NH associated with two C=O functional groups, were produced from the oxidation of methylene groups in TEPA. Imide species on the degraded sorbent are not capable of binding CO(2) due to its weak basicity. The addition of P(200) and P(600) to the supported amine sorbents improved both their CO(2) capture capacities and oxidative degradation resistance. IR spectroscopy results also showed that TEPA was immobilized on the SiO(2) surface through hydrogen bonding between amine groups and the silanol groups of SiO(2). The OH groups of PEG interact with NH(2) /NH of TEPA through hydrogen bonding. Hydrogen bonds disperse TEPA on SiO(2) and block O(2) from accessing TEPA for oxidation. Oxidative degradation resistance and CO(2) capture capacity of the supported amine sorbents can be optimized through adjusting the ratio of hydroxyl to amine groups in the TEPA/PEG mixture.
[Cancer gene therapy by direct intratumoral injection: gene expression and intratumoral pharmacokinetics of plasmid DNA]. (1997)

Pharmacokinetic properties and gene expression of naked plasmid DNA and its cationic liposome complexes after intratumoral injection were studied. Using Walker 256 tissue-isolated tumor perfusion system, we quantified the recovery of naked plasmid DNA and cationic liposome complexes in the tumor, leakage from the tumor surface and the venous outflow after intratumoral injection. Approximately 50% of naked plasmid DNA was eliminated from the tumor at 2 hr after injection, while more than 90% of plasmid DNA was retained in the tumor when complexed with cationic liposome. However, distribution of these complexes in the tumor was restricted only in the vicinity of the injection site. Furthermore, we have examined the expression of chloramphenicol acetyltransferase (CAT) DNA constructs (naked pCMV-CAT) and its cationic liposome (DC-chol) complexes after intratumoral injection into subcutaneous rat Walker 256 carcinosarcoma. Significant gene expression was observed in both cases, but localization of gene expressing cells in the tumor tissue was limited to the vicinity of the injection site. Thus the pharmacokinetic and gene expression studies have demonstrated that in vivo gene expression in the tumor can be achieved by direct injection of naked plasmid DNA. In addition, there is a possibility that restricted localization of naked DNA and its cationic liposome complexes in tumor inhibits gene expression.
A blind bandwidth extension method for audio signals based on phase space reconstruction (2014)

Bandwidth extension is an effective technique for enhancing the quality of audio signals by reconstructing their high-frequency components. In this paper, a novel blind bandwidth extension method is proposed based on phase space reconstruction. Phase space reconstruction is introduced to convert the low-frequency modified discrete cosine transform coefficients of wideband audio to a multi-dimensional space, and the high-frequency modified discrete cosine transform coefficients of the audio signal are reconstructed by a non-linear prediction model. The performance of the proposed method was evaluated through objective and subjective tests. It is found that the proposed method achieves a better performance than the typical linear extrapolation method, and its performance is comparable to the conventional efficient high-frequency bandwidth extension method.
Advances in performance and beam quality of 9xx-nm laser diodes tailored for efficient fiber coupling (2012)

The impact of new direct-diode and fiber laser systems on industrial manufacturing drives the demand for highbrightness diode laser pump sources suitable for simple fiber coupling with high efficiency. Within the German funded project HEMILAS laser mini-bars with different bar geometries and small fill factors were investigated. We present results on 9xx nm bars with tailored beam parameter products for simplified coupling to fibers with core diameters of 200μm and 300μm with a numerical aperture of 0.22 and compare beam quality parameters, brightness, conversion efficiency, and thermal performance of different bar designs. Optimized epitaxy structures yield conversion efficiency maxima above 66%. The slow axis divergence angle of mini-bars with a fill factor of 10% featuring five 100μm wide and 4mm long emitters based on this epitaxy structure stays below 7°, which corresponds to a beam parameter product of 15mm mrad, up to very high output power of over 45W. This result was achieved for mounting on actively cooled submounts using hard solder. A similar bar with 5mm cavity length and using soft soldering reached an output power of 60W at the same beam parameter product. At 4mm cavity length, no COMD failures were observed up to currents exceeding the thermal rollover and the maximum output cw power was 95W.
Biological Briefs (1941)

Other| April 01 1941 Biological Briefs Ruth Sherman Ruth Sherman Search for other works by this author on: This Site PubMed Google Scholar The American Biology Teacher (1941) 3 (7): 237–238. https://doi.org/10.2307/4437161 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation Ruth Sherman; Biological Briefs. The American Biology Teacher 1 April 1941; 3 (7): 237–238. doi: https://doi.org/10.2307/4437161 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentThe American Biology Teacher Search This content is only available via PDF. Article PDF first page preview Close Modal You do not currently have access to this content.
Cytoplasmic pH, a key determinant of growth factor‐induced DNA synthesis in quiescent fibroblasts (1985)

In response to growth factors, quiescent fibroblast mutants lacking Na+/H+ exchange activity fail to elevate their cytoplasmic pH (pHi) and to reinitiate DNA synthesis at neutral and acidic pHo. A pHi threshold of approximately 7.2 exists, below which growth factors cannot set in motion the Go to S phase transition. Restoration of the pHi defect in mutant cells restores the wild-type phenotype. These findings, combined with the properties of another class of mutants able to grow at very low pHo, demonstrate that pHi, modulated by growth factor activation of the Na+/H+ antiporter, plays a determinant role in growth control.
Understanding Barriers to the Use of Numeric Data in Learning and Teaching (2001)

Understanding Barriers to the Use of Numeric Data in Learning and Teaching
Woven convolutional codes and a new iterative decoding algorithm (2004)

Based on the soft-input soft-output (SISO) algorithm that is used to iteratively decode serially concatenated codes, we present a new modular iterative decoding algorithm for woven convolutional codes. The proposed algorithm takes the log-likelihood ratio of a priori probability as inputs and produces log-likelihood ratio of post a priori probability as outputs. The justification and the performance are demonstrated by numerical simulation.
Code generation for the MPEG Reconfigurable Video Coding framework: From CAL actions to C functions (2008)

The MPEG reconfigurable video coding (RVC) framework is a new standard under development by MPEG that aims at providing a unified specification of current MPEG video coding technologies. In this framework, a decoder is built as a configuration of video coding modules taken from the standard ldquoMPEG toolbox libraryrdquo. The elements of the library are specified using the CAL actor language (CAL). CAL is a dataflow based language providing computation models that are concurrent and modular. This paper describes a synthesis tool that from a CAL specification automatically generates compilable C-code. Code generators are fundamental supports for the deployment and success of the MPEG RVC framework. This paper focuses on the automatic translation of CAL actions, which is the first step to a complete actor translation. The techniques described here enable to automatically generate C-code according to a finite set of rules. This approach has been used to obtain a C implementation of the IDCT module which is one element of the RVC library. The generated code is validated against the original CAL dataflow program simulated using the open dataflow environment.
Morphology, mechanical properties, and thermal stability of polyurethane-epoxide resin interpenetrating polymer network rigid foams (2000)

A series of rigid interpenetrating network foams (IPNFs) based on a rosin-based polyurethane (PU) and a crosslinked epoxide resin (ER) were prepared by a simultaneous polymerization technique. The morphology, mechanical properties, thermal stability, and changes in the chemical structure during the thermal degradation process of the rigid IPNFs were investigated by scanning electron microscopy (SEM), compressive testing, thermogravimetric analysis (TGA), and Fourier-transform infrared spectroscopy (FTIR). The SEM micrographs showed that the cell structure of the rigid IPNFs became less homogeneous with increasing ER content. The brittleness of the cell walls increased as the ER content and the cure time of the rigid IPNFs increased. The compressive strength of the rigid PU/ER IPNFs increased to a maximum value and then decreased with further increase in the ER content. Similar behavior was observed for the elastic modulus. This behavior was related to the nonhomogeneous cells and more brittle cell walls for the rigid IPNFs with high ER content. The TGA data showed that the thermal stability of the rigid PU foam increased with the addition of increasing levels of ER, due to the better thermal stability of the ER compared to that of the PU. With the exception of the ER alone, a two-stage weight-loss process was observed for all these rigid IPNFs and for the PU foam alone. The FTIR analysis suggested that the first stage of weight loss was due to the degradation of the polyol–derived blocks of the PU, and the second weight loss stage was governed by both the degradation of the ER component and that of the isocyanate-derived blocks of the PU. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 75: 406–416, 2000
Colorimetric Chiral Recognition of Enantiomers Using the Nucleotide-Capped Silver Nanoparticles (2011)

Chiral recognition is among the important and special modes of molecular recognition. It is highly desirable to develop a simple, rapid, sensitive, and high-throughput routine assay for chiral recognition. In this study, we demonstrate that nucleotide-capped Ag nanoparticles (AgNPs) can be used as an ultrahigh efficiency enantioseparation and detection platform for D- and L-cysteine. The aggregation of AgNPs is selectively induced by an enantiomer of cysteine, which allowed the rapid colorimetric enantiodiscrimination of cysteine without any prior derivatization and specific instruments and left an excess of the other enantiomer in the solution, thus resulting in enantioseparation. This is the first application of a nucleotide-capped AgNP-based biosensing platform for chiral recognition and opens new opportunities for design of more novel enantiosensing strategies and enantiospecific adsorbents and expansion of its application in different fields.
State of the Art and Research Challenges for VANETs (2008)

Recent advances in wireless communications technology and car industry made it possible to consider wireless Ad-hoc (or mixed Ad-hoc/infrastructure) networks, providing connectivity among vehicles on the road. Such network, often referred to as VANET (Vehicular Ad-hoc Network) is seen to be one of the most valuable concept for improving efficiency and safety of the future transportations, as well as boosting operators' revenue. Thus, several ongoing research projects supported by industry, governments and academia, establishing standards for VANET networks. This paper covers current research challenges and future applications for such networks, discusses possible deployment scenarios and provides some insights to the state-of-the-art of the current standardization of interfaces and protocols on a global scale.
Measurement of skin thickness and skin elasticity to evaluate the effectiveness of intensive decongestive treatment in patients with lymphoedema: a prospective study (2013)

Changes in dermal thickness are slightly correlated with volume changes before and after 5-day intensive CDP in a selected series of patients previously treated at home.
SOPHOROSE AS AN INDUCER OF CELLULASE IN <i>TRICHODERMA VIRIDE</i> (1962)

Mandels, Mary (Quartermaster Research and Engineering Center, Natick, Mass.), Fredrick W. Parrish, and Elwyn T. Reese. Sophorose as an inducer of cellulase in Trichoderma viride. J. Bacteriol. 83:400-408. 1962.-The impurity in glucose responsible for cellulase induction in Trichoderma viride QM 6a has been isolated and characterized as sophorose (2-O-beta-d-glucopyranosyl-d-glucose). It is present at 0.0058% in reagent grade glucose. Sophorose is a very powerful inducer of cellulase for Trichoderma viride, being 2500 times as active as cellobiose. Modifications of sophorose, such as reduction or glycoside formation, destroy its inducing ability. The high activity of sophorose as an inducer is specific for T. viride.
Brown pigmentation of <i>Xanthomonas campestris</i> pv. <i>phaseoli</i> associated with homogentisic acid (1994)

The diffusible brown pigment produced by some strains of Xanthomonas campestris pv. phaseoli was found to be due to the secretion and subsequent oxidation of homogentisic acid (2, 5-dihydroxyphenylacetic acid) rather than tyrosinase activity as previously reported. Homogentisic acid is an intermediate in tyrosine catabolism for a number of bacteria. Brown-pigmented strains appeared to be disrupted in tyrosine catabolism and could not use tyrosine as a nutrient. Nonpigmented strains, however, could utilize tyrosine as a nutrient, and although they secreted homogentisic acid, the levels were approximately 1/100th that of brown-pigmented strains. Production of brown pigment was stimulated by tyrosine and repressed by glucose. Growth in glucose resulted in a drop in the pH of the media, and the greatest pigment formation was associated with a shift to alkaline conditions in the culture media. By buffering the media near pH 7.0, brown pigment formation was repressed, even though unoxidized homogentisic acid accumulated in the culture media. The disruption of tyrosine catabolism corresponds to other reports describing differences between brown-pigmented and nonpigmented strains, and provides further support for the retention of a special taxonomic status for the brown-pigmented strains.Key words: homogentisic acid, pigments, Xanthomonas, fuscans.
ON MULTI-AUTHORITY CIPHERTEXT-POLICY ATTRIBUTE-BASED ENCRYPTION (2009)

In classical encryption schemes, data is encrypted under a single key that is associated with a user or group. In Ciphertext-Policy Attribute-Based Encryption(CP-ABE) keys are associated with attributes of users, given to them by a central trusted authority, and data is encrypted under a logical formula over these attributes. We extend this idea to the case where an arbitrary number of independent parties can be present to maintain attributes and their corresponding secret keys. We present a scheme for multi-authority CP-ABE, propose the first two constructions that fully implement the scheme, and prove their security against chosen plaintext attacks.
Accurate Annotation of Remote Sensing Images via Active Spectral Clustering with Little Expert Knowledge (2015)

It is a challenging problem to efficiently interpret the large volumes of remotely sensed image data being collected in the current age of remote sensing “big data”. Although human visual interpretation can yield accurate annotation of remote sensing images, it demands considerable expert knowledge and is always time-consuming, which strongly hinders its efficiency. Alternatively, intelligent approaches (e.g., supervised classification and unsupervised clustering) can speed up the annotation process through the application of advanced image analysis and data mining technologies. However, high-quality expert-annotated samples are still a prerequisite for intelligent approaches to achieve accurate results. Thus, how to efficiently annotate remote sensing images with little expert knowledge is an important and inevitable problem. To address this issue, this paper introduces a novel active clustering method for the annotation of high-resolution remote sensing images. More precisely, given a set of remote sensing images, we first build a graph based on these images and then gradually optimize the structure of the graph using a cut-collect process, which relies on a graph-based spectral clustering algorithm and pairwise constraints that are incrementally added via active learning. The pairwise constraints are simply similarity/dissimilarity relationships between the most uncertain pairwise nodes on the graph, which can be easily determined by non-expert human oracles. Furthermore, we also propose a strategy to adaptively update the number of classes in the clustering algorithm. In contrast with existing methods, our approach can achieve high accuracy in the task of remote sensing image annotation with relatively little expert knowledge, thereby greatly lightening the workload burden and reducing the requirements regarding expert knowledge. Experiments on several datasets of remote sensing images show that our algorithm achieves state-of-the-art performance in the annotation of remote sensing images and demonstrates high potential in many practical remote sensing applications.