gebhart/patrepeval huggingface dataset:
Formation of pyrazines from acyloin precursors under mild conditions (1988)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFormation of pyrazines from acyloin precursors under mild conditionsGeorge P. RizziCite this: J. Agric. Food Chem. 1988, 36, 2, 349–352Publication Date (Print):March 1, 1988Publication History Published online1 May 2002Published inissue 1 March 1988https://doi.org/10.1021/jf00080a026RIGHTS & PERMISSIONSArticle Views394Altmetric-Citations52LEARN 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 InReddit PDF (541 KB) Get e-Alerts Get e-Alerts
Computer Animation'97 Dirichlet Free-Form Deformations and their Application to Hand Simulation (1998)

We present a generalized method for free-form deformations that combines the traditional freeform deformation model with techniques of scattered data interpolation based on Delaunay and Dirichlet/Voronoi diagrams. This technique offers many advantages over traditional FFDs, including simple control of local deformations. It also keeps all the capabilities of FFD extensions, such as extended free-form deformations and direct FFDs. The deformation model has much potential for 3D modeling and animation. We choose to illustrate this with a nontrivial human simulation task: hand animation. We implement a multi-layer deformation model where DFFDs are used to simulate the intermediate layer between the skeleton and the skin.
GraProStr - Graphs of Protein Structures: A Tool for Constructing the Graphs and Generating Graph Parameters for Protein Structures (2011)

Protein structures can be represented as graphs/networks by defining the amino-acids as nodes and the noncovalent interactions as connections (edges). An analysis of such a graph provides valuable insights into the global structural properties, function, folding, and stability of proteins. Here we have created a webtool GraProStr to generate protein structure networks and analyze network parameters. Protein side-chain based, Cα/Cβ backbone based or proteinligand Graphs/Networks can be generated using GraProStr . The well tested tool is now made available to the scientific community for the first time. GraProStr is available online and can be accessed from http://vishgraph.mbu.iisc.ernet.in/ GraProStr /index.html using any of the internet browsers (best viewed in Mozilla Firefox version ≥ 3.6). The webtool is written using Perl CGI and available using Apache Webserver. With its customizable definitions of protein structure networks and well defined network parameters, GraProStr can be a very useful tool for both theoretical and experimental elucidation of protein structures.
A study on the Development of a Driving Simulator for Reappearance of Vehicle Motion (I) (1999)

A vehicle driving simulator is a virtual reality device which a human being feels as if the one drives a vehicle actually. The driving simulator is used effectively for studying interaction of a driver-vehicle and developing vehicle system of a new concept. The driving simulator consists of a vehicle motion bed system, motion controller, visual and audio system, vehicle dynamic analysis system, cockpit system, and etc. In it is paper, the main procedures to develop the driving simulator are classified by five parts. First, a motion bed system and a motion controller, which can track a reference trajectory, are developed. Secondly, a performance evaluation of the motion bed system for the driving simulator is carried out using LVDTs and accelerometers. Thirdly, a washout algorithm to realize a motion of an actual vehicle in the driving simulator is developed. The algorithm changes the motion space of a vehicle into the workspace of the driving simulator. Fourthly, a visual and audio system for feeling higher realization is developed. Finally, an integration system to communicate and monitor between sub systems is developed.
Chromosomal abnormalities and molecular genetics of non-Hodgkin's lymphoma. (1998)

A number of recurring cytogenetic abnormalities have been identified in lymphomas that correlate with clinical, morphologic, and immunophenotypic features. For example, the t(14;18) is observed in a high proportion of follicular small cleaved cell lymphomas, most patients with translocations involving 3q27 have diffuse large cell lymphomas (B cell), and patients with a t(8;14) have either small noncleaved cell or diffuse large cell lymphomas. In contrast, a large proportion of neoplasms of T-cell origin are characterized by rearrangements that involve 14q11, 7q34-35, or 7p15. Molecular analysis of many of the recurring chromosomal translocations in lymphomas has resulted in the identification of the involved genes. Alterations in expression of these genes or in the production of an altered protein resulting from the rearrangement play an integral role in malignant transformation. In addition to chromosomal abnormalities, other types of mutations affecting oncogenes have been identified in lymphomas. This article reviews the genetic mutations involved in the pathogenesis of non-Hodgkin's lymphoma (NHL) with an emphasis on chromosomal abnormalities.
Recent developments in synthetic nitrogen fixation (2012)

Within the background of biological nitrogen fixation mediated by the enzyme nitrogenase, transition-metal complexes capable of binding and activating dinitrogen towards protonation and reduction have been synthesised. Of particular interest in this research area has been the transition-metal mediated conversion of dinitrogen to ammonia (stoichiometric and catalytic) and the elucidation of the corresponding mechanistic pathways. The present review summarises recent studies in this field. To this end, the available complexes binding N2 and/or its intermediates on the pathway to ammonia are subdivided into systems containing early transition metals, Mo & W, iron and late transition metals. The implications of the findings obtained on low-molecular weight compounds with respect to the functionalisation of N2 and the reduction of N2 to ammonia on the FeMoco of nitrogenase are considered.
Fuzzy clustering of independent components within time-domain blind audio source separation method (2011)

This paper deals with several modifications of an existing Blind Audio Source Separation (BASS) method called T-ABCD. The method applies Independent Component Analysis (ICA) in the time-domain, which gives independent components of individual signals that form unknown groups. The need is to recover these groups using a clustering algorithm and a similarity measure, and reconstruct the separated signals from the groups then. In this paper, several novel criteria that are suitable to measure the similarity between audio components are proposed. Next, fuzzy clustering algorithms are applied to group the components, and novel reconstruction approaches relying on proper weighting of components are proposed. The proposed modifications are compared by experiments, and conclusions are drawn.
Oligonucleotide Synthesis: Phosphotriester Approach (2003)

Over the last 30 years or so, the chemical synthesis of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) has constituted one of the most challenging problems in the field of the synthetic organic chemistry of natural products. In more recent times, attention has been focused not on “natural” nucleic acid fragments, but on the preparation of nucleic acids bearing modified internucleotidic linkages or modified bases in an effort to enhance stability to nucleases and increase cellular uptake.
Das an der Verholzung beteiligte Fermentsystem (1952)

Abstract An der Verholzung ist eine streng lokalisierte β‐Glucosidase beteiligt, die in Schnitten mit Indican nachgewiesen wird, das bei der Spaltung über Indoxyl Indigo bildet. Die dehydrogenierenden und oxydierenden Fermente im Gebiet des Cambiums sind wie die bisher verwendete Pilzdehydrogenase imstande, aus Coniferylalkohol ligninartige Dehydrierungspolymerisate zu bilden, Eine Deutung des Verholzungsvorganges wird gegeben.
Asymmetric reduction of prochiral ketones by cell‐free systems from <i>alcaligenes eutrophus</i> (1994)

Abstract A strain of Alcaligenes eutrophus has been isolated from the soil by enrichment culture technique with nerolidol ( 1 ), a sesquiterpene alcohol, as the sole source of carbon and energy. Fermentation of nerolidol ( 1 ) by this bacterium in a mineral salts medium resulted in the formation of two major metabolites, viz. geranylacetone ( 2 ) and an optically active alcohol, ( S )‐(+)‐geranylacetol ( 3 ). Nerolidol ( 1 )‐induced cells readily transformed 1,2‐epoxynerolidol ( 4 ) and 1,2‐dihydroxynerolidol ( 5 ) into geranylacetone ( 2 ). These cells also exhibited their ability to carry out stereospecific reduction of 2 into ( S )‐(+)‐geranylacetol ( 3 ). Oxygen uptake studies clearly indicated that nerolidol‐induced cells oxidized compounds 2, 3, 4, 5 and ethyleneglycol ( 7 ). Based on the nature of the metabolites isolated, the ability of nerolidol‐induced cells to convert compounds 4 and 5 into geranylacetone ( 2 ), and oxygen uptake studies, a pathway for the microbial degradation of nerolidol ( 1 ) has been proposed. The proposed pathway envisages the epoxidation of the terminal double bond, opening of the epoxide and cleavage between C‐2 and C‐3 in a manner similar to the periodate oxidation of cis ‐diol. The cell‐free extract prepared from nerolidol‐induced cells readily carried out the asymmetric reduction of compound 2 to an optically active alcohol ( 3 ) in the presence of NAD(P)H. The cell‐free extract carried out both oxidation and reduction reactions at two different pH values and exhibited wide substrate specificity towards various steroids besides terpenes.
Rapid Bioenabled Formation of Ferroelectric BaTiO<sub>3</sub>at Room Temperature from an Aqueous Salt Solution at Near Neutral pH (2007)

A 12-mer peptide, identified through phage display biopanning, has been used for the first time to induce the rapid formation of ferroelectric (tetragonal) nanocrystalline BaTiO3 at room temperature from an aqueous salt precursor solution at near neutral pH. BaTiO3 is widely used in capacitors, thermistors, displays, and sensors owing to its attractive dielectric, ferroelectric, pyroelectric, optical, and electrochemical properties. Two 12-mer peptides (BT1 and BT2) were selected from a phage-displayed peptide library via binding to tetragonal BaTiO3 powder. While these peptides possessed various types of amino acids, 8 of the 12 amino acids were common to both peptides. Each of these peptides induced the formation of faceted nanoparticles (50-100 nm diameter) from an aqueous precursor solution. X-ray diffraction and selected area electron diffraction patterns obtained from these faceted nanoparticles were consistent with the BaTiO3 compound. Rietveld analyses of the X-ray diffraction patterns yielded good fits to tetragonal crystal structures, with the BaTiO3 formed in the presence of the BT2 peptide exhibiting the most tetragonal character. A coating of the latter BaTiO3 nanoparticles exhibited polarization hysteresis (a well-known characteristic of ferroelectric materials) at room temperature and a relative permittivity of 2200. Such rapid, peptide-induced precipitation at room temperature provides new opportunities for direct BaTiO3 formation on low-melting or reactive materials (e.g., plastics, cloths, bio-organics) and the low temperature integration of BaTiO3 into electronic devices (e.g., on silicon or flexible polymer substrates).
Corporate reforms to Australian universities: views from the academic heartland (2017)

This paper presents survey findings relating to academics' work attitudes, values and responses to corporate reforms within eight Australian universities. Academics (n= 1,041) responded to the Academic Work Environment Survey, a diagnostic questionnaire designed to examine the quality of academic work life within universities in Australia (Winter, Taylor, & Sarros, 2000). Academics indicated strong positive responses to items indicative of corporate reforms across the higher education sector (i.e., decreased public funding, rise of consumerism, business-related managerial practices, quality assurance mechanisms, appraisal systems), reported high levels of role overload (stress) and moderate levels of job involvement and organisational commitment. Value conflict statements indicated academics felt market behaviour mechanisms and business-related principles were compromising the primary goals of teaching, learning and scholarship and exerting a strong negative effect on academic morale and productivity. Role overload and work motivation responses suggested a perceived violation in the 'psychological contract' between academics and their universities (work stress and poor recognition and rewards practices are cited as evidence of contract violation). The paper concludes by discussing the types of university leadership and work structures needed to reduce value conflict in academe and build trust between academics and university managers.
SUPRAPUBIC VERSUS TRANSURETHRAL BLADDER DRAINAGE AFTER COLPOSUSPENSION/VAGINAL REPAIR (1985)

Ninety-two patients with preoperative sterile urine undergoing colposuspension or vaginal repair operation for stress urinary incontinence and/or genital descensus were randomized to either suprapubic or transurethral postoperative catheter drainage. The prevalence of significant bacteriuria on the fifth postoperative day was statistically significantly lower when using suprapubic catheter (20.8%) than with transurethral catheter drainage (45.5%). This applied especially to colposuspension. The rate of postoperatively impaired bladder emptying also tended to be reduced when using suprapubic catheter. At follow-up after one year, postoperative bacteriuria was closely correlated to increased rates of both clinical cystitis and asymptomatic significant bacteriuria. Thus it is recommended to use suprapubic bladder drainage not only after colposuspension but also after vaginal repair in an effort to avoid an increased risk of urinary infections.
Multi-level operator combination in XML query processing (2002)

A core set of efficient access methods is central to the development of any database system. In the context of an XML database, there has been considerable effort devoted to defining a good set of primitive operators and inventing efficient access methods for each individual operator. These primitive operators have been defined either at the macro-level (using a "pattern tree" to specify a selection, for example) or at the micro-level (using multiple explicit containment joins to instantiate a single XPath expression).In this paper we argue that it is valuable to consider operations at each level. We do this through a study of operator merging: the development of a new access method to implement a combination of two or more primitive operators. It is frequently the case that access methods for merged operators are superior to a pipelined execution of separate access methods for each operator. We show operator merging to be valuable at both the micro-level and the macro-level. Furthermore, we show that the corresponding merged operators are hard to reason with at the other level.Specifically, we consider the influence of projections and set operations on pattern-based selections and containment joins. We show, through both analysis and extensive experimentation, the benefits of considering these operations all together. Even though our experimental verification is only with a native XML database, we have reason to believe that our results apply equally to RDBMS-based XML query engines.
Bulk heterojunction solar cells with thick active layers and high fill factors enabled by a bithiophene-co-thiazolothiazole push-pull copolymer (2011)

A push-pull copolymer is presented which can be used in bulk heterojunction (BHJ) solar cells with active layers greater than 200 nm and fill factors above 60%. The efficiencies of most BHJ solar cells are limited by the fact that they have active layers which are between 60 and 110 nm. While this thickness regime enables peak quantum efficiencies (EQE) of 60%–70%, the ability to fabricate thicker devices would increase average EQE values and thus device efficiencies. Discovery of materials which can maintain high performance at large thicknesses will enable higher performance in BHJ hero cells and increase the commercial viability of this technology.
Fast Codeword Search Algorithm For Split-Dimension Vector Quantization Based On The Sequence Of Characteristic Value (2008)

Publication in the conference proceedings of EUSIPCO, Lausanne, Switzerland, 2008
IEEE Access Special Section Editorial: Index Modulation Techniques for Next-Generation Wireless Networks (2018)

Index modulation (IM) techniques appear as competitive candidates for next-generation (5G and beyond) wireless networks due to the attractive advantages they offer in terms of spectral and energy efficiency as well as hardware simplicity. IM is a highly spectrum- and energy-efficient yet simple digital modulation technique, which utilizes the indices of the building blocks of the corresponding communication systems to convey additional information bits. IM systems provide alternative ways to transmit information in contrast to traditional digital modulation schemes that rely on the modulation of the amplitude/phase/frequency of a sinusoidal carrier signal for transmission, as widely considered in the field of communications over the past 50 years. Radically, IM schemes have the ability to map information bits by altering the on/off status of their transmission entities such as transmit antennas, subcarriers, radio frequency (RF) mirrors, transmit light emitting diodes, relays, modulation types, time slots, precoder matrices, dispersion matrices, spreading codes, signal powers, loads and so on. In other words, IM creates completely new dimensions for data transmission. Since the initial skepticism of both academia and industry on the potential and applicability of IM technologies has now gone away, we strongly believe that IM is not another simple digital modulation alternative, but rather can be a game-changing communication paradigm whose time has come!
High‐Pressure Gelatinization of Barley Starch at Low Moisture Levels and Elevated Temperature (1993)

Abstract High‐pressure gelatinization of barley starch at low water contents and at elevated temperature was performed in a differential scanning calorimeter equipped with a pressure chamber. Microscopic examination of the samples showed complete loss of birefringence and rupture of granular structure in most samples. The results indicated that enthalpy levels much higher than those in high‐moisture gelatinization are needed to attain proper gelatinization and plastification of starch at low water contents.
A Pycnometer of Improved Design (1973)

The density of a solution must be known to laboratory medicine , biochemistry, and physical chemistry. Knowledge of the density may permit calculation of solution concentration, solute molecular weight, solute partial, or specific volume , for example. Therefore, the determination of the density of a solution is a measurement which must be made with precision, accuracy, and sensitivity. This report describes a pycnometer which permits making such measurements.
The NH2 Terminus of Influenza Virus Hemagglutinin-2 Subunit Peptides Enhances the Antitumor Potency of Polyarginine-mediated p53 Protein Transduction (2004)

Protein transduction therapy is a newly developing method that allows proteins, peptides, and biologically active compounds to penetrate across the plasma membrane by being fused with cell-penetrating peptides such as polyarginine. Polyarginine-fused p53 protein penetrates across the plasma membrane of cancer cells and inhibits the growth of the cells. However, the protein is often entrapped inside macropinosomes in the cytoplasm. Therefore, high dose concentrations of the protein are needed for it to function effectively. To overcome this problem, in the present study, polyarginine-fused p53 was linked with the NH(2)-terminal domain of influenza virus hemagglutinin-2 subunit (HA2), which is a pH-dependent fusogenic peptide that induces the lysis of membranes at low pH levels. The protein was capable of efficiently translocating into the nucleus of glioma cells and induced p21(WAF1) transcriptional activity more effectively than did polyarginine-fused p53 protein. Moreover, low concentrations of the protein significantly inhibited the growth of cancer cells. These results suggest that protein transduction therapy using polyarginine and HA2 may be useful as a method for cancer therapy.
<title>Phased development of a web-based PACS viewer</title> (2000)

The Web browser is an excellent environment for the rapid development of an effective and inexpensive PACS viewer. In this paper we will share our experience in developing a browser-based viewer, from the inception and prototype stages to its current state of maturity. There are many operational advantages to a browser-based viewer, even when native viewers already exist in the system (with multiple and/or high resolution screens): (1) It can be used on existing personal workstations throughout the hospital. (2) It is easy to make the service available from physician's homes. (3) The viewer is extremely portable and platform independent. There is a wide variety of means available for implementing the browser- based viewer. Each file sent to the client by the server can perform some end-user or client/server interaction. These means range from HTML (for HyperText Markup Language) files, through Java Script, to Java applets. Some data types may also invoke plug-in code in the client, although this would reduce the portability of the viewer, it would provide the needed efficiency in critical places. On the server side the range of means is also very rich: (1) A set of files: html, Java Script, Java applets, etc. (2) Extensions of the server via cgi-bin programs, (3) Extensions of the server via servlets, (4) Any other helper application residing and working with the server to access the DICOM archive. The viewer architecture consists of two basic parts: The first part performs query and navigation through the DICOM archive image folders. The second part does the image access and display. While the first part deals with low data traffic, it involves many database transactions. The second part is simple as far as access transactions are concerned, but requires much more data traffic and display functions. Our web-based viewer has gone through three development stages characterized by the complexity of the means and tools employed on both client and server sides.