gebhart/patrepeval huggingface dataset:
Preparation and properties of bio‐based epoxy montomorillonite nanocomposites derived from polyglycerol polyglycidyl ether and ε‐polylysine (2009)

Abstract Glycerol polyglycidyl ether (GPE) and polyglycerol polyglycidyl ether (PGPE) were cured with ε‐poly( L ‐lysine) (PL) using epoxy/amine ratios of 1 : 1 and 2 : 1 to create bio‐based epoxy cross‐linked resins. When PGPE was used as an epoxy resin and the epoxy/amine ratio was 1 : 1, the cured neat resin showed the greatest glass transition temperature ( T g ), as measured by differential scanning calorimetry. Next, the mixture of PGPE, PL, and montomorillonite (MMT) at an epoxy/amine ratio of 1 : 1 in water was dried and cured finally at 110°C to create PGPE‐PL/MMT composites. The X‐ray diffraction and transmission electron microscopy measurements revealed that the composites with MMT content 7–15 wt % were exfoliated nanocomposites and the composite with MMT content 20 wt % was an intercalated nanocomposite. The T g and storage modulus at 50–100°C for the PGPE‐PL/MMT composites measured by DMA increased with increasing MMT content until 15 wt % and decreased at 20 wt %. The tensile strength and modulus of the PGPE‐PL/MMT composites (MMT content 15 wt %: 42 and 5300 MPa) were much greater than those of the cured PGPE‐PL resin (4 and 6 MPa). Aerobic biodegradability of the PGPE‐PL in an aqueous medium was ∼ 4% after 90 days, and the PGPE‐PL/MMT nanocomposites with MMT content 7–15 wt % showed lower biodegradability. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009
Software security and privacy risks in mobile e-commerce (2001)

article Share on Software security and privacy risks in mobile e-commerce Authors: Anup K. Ghosh Cigital, Inc. Cigital, Inc.View Profile , Tara M. Swaminatha Cigital, Inc. Cigital, Inc.View Profile Authors Info & Claims Communications of the ACMVolume 44Issue 2Feb. 2001pp 51–57https://doi.org/10.1145/359205.359227Published:01 February 2001Publication History 149citation15,815DownloadsMetricsTotal Citations149Total Downloads15,815Last 12 Months154Last 6 weeks5 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access
A tour through the visualization zoo (2010)

A survey of powerful visualization techniques, from the obvious to the obscure.
Improvements of preimplantation diagnosis of aneuploidy by using microwave hybridization, cell recycling and monocolour labelling of probes (2000)

Recent studies indicate that preimplantation genetic diagnosis of aneuploidy significantly reduces spontaneous abortions and increases pregnancy rates in women of advanced maternal age undergoing in-vitro fertilization. A new protocol was developed involving cell recycling (sequential hybridizations) and microwave hybridization of repetitive probes in order to obtain in a few hours enumeration results for chromosomes X, Y, 1, 13, 15, 16, 18, 21 and 22 in single blastomeres. The error rate using this protocol was significantly lower than in previous protocols and the analysis of nine chromosomes can be achieved in a shorter time than before.
Determinants of early versus late cardiac death in patients undergoing coronary artery bypass graft surgery. (1991)

Most analyses of risk factors affecting survival after coronary artery bypass graft surgery have not differentiated among factors that influence early and late survival. For this reason, a multiphase model was applied to survival data from 2,967 patients undergoing a first coronary artery bypass graft at the Duke University Medical Center between 1969 and 1984. There were 709 deaths during follow-up to 19.6 years. The data were analyzed using a multivariable survival model that separates the underlying hazard function into as much as three different phases, each incorporating separate risk factors. Two distinct phases were detected. One phase dominated early survival (0-1 year), and the second phase dominated late survival (greater than 1 year). Surgery performed earlier in our experience was associated with elevated risk of dying in both phases but with different magnitudes, whereas lower ejection fraction, greater extent of coronary disease, older age, conduction abnormality, and history of hypertension were associated with elevated risk of dying similarly in both phases (p less than 0.05). Severity of angina symptoms and lower weight were associated with an elevated risk of dying only in the early phase (p less than 0.05; because few of the patients were obese, estimates of the relative risk of morbid obesity could not be estimated), whereas vascular disease, diabetes, and extent of myocardial damage were associated with an elevated risk of dying only in the late phase (p less than 0.05). These data illustrate both the differential influence of risk factors over time and the importance of multiphase models.
Timing and potential mechanisms of new conduction abnormalities during the implantation of the Medtronic CoreValve System in patients with aortic stenosis (2011)

Transcatheter aortic valve implantation with the MCS was associated with new CAs in 82% of which more than half occurred before the actual valve implantation. It remains to be elucidated by dedicated studies whether new CAs can be reduced by appropriate balloon sizing-a precept that also holds for valve size given the observed directional signal of the valve size/aortic annulus ratio.
Locally Embedding Autoencoders: A Semi-Supervised Manifold Learning Approach of Document Representation (2016)

Topic models and neural networks can discover meaningful low-dimensional latent representations of text corpora; as such, they have become a key technology of document representation. However, such models presume all documents are non-discriminatory, resulting in latent representation dependent upon all other documents and an inability to provide discriminative document representation. To address this problem, we propose a semi-supervised manifold-inspired autoencoder to extract meaningful latent representations of documents, taking the local perspective that the latent representation of nearby documents should be correlative. We first determine the discriminative neighbors set with Euclidean distance in observation spaces. Then, the autoencoder is trained by joint minimization of the Bernoulli cross-entropy error between input and output and the sum of the square error between neighbors of input and output. The results of two widely used corpora show that our method yields at least a 15% improvement in document clustering and a nearly 7% improvement in classification tasks compared to comparative methods. The evidence demonstrates that our method can readily capture more discriminative latent representation of new documents. Moreover, some meaningful combinations of words can be efficiently discovered by activating features that promote the comprehensibility of latent representation.
Piezoforce microscopy study of lead-free perovskite Na0.5Bi0.5TiO3 thin films (2007)

As a promising lead-free ferroelectric material, Na0.5Bi0.5TiO3 (NBT) was synthesized as thin films via a classic 2-methoxyethanol sol-gel route and chemical solution deposition method. Perovskite structure with random orientation of crystallites has been obtained on platinized silicon wafer at low temperature (460°C). Piezoelectric activity in such films was detected using electrical analysis. X-ray diffraction and piezoresponse force microscopy (PFM) have been used to analyze NBT thin films with different microstructures and properties dependent on fabrication and annealing processes.
In vivo measurement of body composition in meat animals (1984)

In vivo measurement of body composition in meat animals , In vivo measurement of body composition in meat animals , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی
Extracellular microbial polysaccharides: Kinetics of <i>Pseudomonas</i> sp., <i>Azotobacter vinelandii</i>, and <i>Aureobasidium pullulans</i> batch fermentations (1980)

Abstract The generality of a fermentation kinetic model (developed earlier for xanthan gum production by Xanthamonas campestris ) is tested by application to several other polysaccharide‐producing fermentations. With literature batch data for exopolysac‐charides from Azotobacter vinelandii, Pseudomonas sp., and Aureobasidium pullulans , the model is shown to provide a reasonable description for biomass ( X ), product (polysaccharide, P ), and substrate ( S ) evolution in time. Thus a general kinetic model for microbial fermentations that produce exopolysaccharides is established.
Towards Autonomic Cloud Configuration and Deployment Environments (2014)

Cloud configuration deployment and management is still largely a manual task carried out by system administrators. Introducing autonomy in Cloud management would entail, amongst other things, the ability for the Cloud manager to automatically scale up or down the number and type of deployed images/virtual machines, to meet SLAs for performance etc. In this paper we present auto Ju Ju, a prototype autonomic cloud manager built on top of Juju, a Cloud service orchestration and deployment manager for the Ubuntu Linux OS. Auto Ju Ju makes autonomous decisions about when to scale Cloud services horizontally (by adding or removing instances) and vertically (by deploying different architectural components) to improve performance. We show how this autonomic Cloud manager can self configure and optimise a Cloud deployment.
Einleitung (1993)

Vielleich gehören Sie zu der Gruppe von Anwendern, die immer schon mehr wollten, aber nicht bekommen haben, als Sie sich einen IBM-kompatiblen PC gekauft haben, weil der Arbeitsrechner im Arbeitszimmer immer noch etwas wichtiger war, als ein “Spiele-computer“ mit bestechener Grafik.
Using Mutation to Automatically Suggest Fixes for Faulty Programs (2010)

This paper proposes a strategy for automatically fixing faults in a program by combining the processes of mutation and fault localization. Statements that are ranked in order of their suspiciousness of containing faults can then be mutated in the same order to produce possible fixes for the faulty program. The proposed strategy is evaluated against the seven benchmark programs of the Siemens suite and the Ant program. Results indicate that the strategy is effective at automatically suggesting fixes for faults without any human intervention.
Moving-window algorithm for fast fingerprint verification (2002)

Fingerprint verification as a means of identification requires speed and reliability. The authors describe a moving-window algorithm that is developed to fulfil these requirements. This algorithm uses pattern matching of the images of the areas around each minutia. It is fast and uses a stepping-stone scan. It verifies thin-ridged fingerprints, whose acceptance rate gets low with the stepping-stone scan, by moving the start point of the scan. The authors tested this method by computer simulation. This technique verifies fingerprints in an average of 0.7 s and at a maximum of 3 s. However, the average time that a person is kept waiting is 0.3 s, and the longest waiting time is less than 1 s. It is concluded that the average recognition time is less than 0.2 s. An average acceptance rate of 97.0% is achieved.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Behavioural and electroantennogram responses of male cigarette beetle (Lasioderma serricorne F.) to optically active serricornins. (1982)

"4,6-dimethyl-7-hydroxynonan-3-one"1} is the unique sex pheromone produced by the female cigarette beetle (Lasioderma serricorne F.), a cosmopolitan pest of cured tobacco leaves.
Kinematic Properties of Tripode (Tri-pot) Joints (1975)

The geometry of tripode (also called tri-pot) joints or shaft couplings is simplified by folding one side onto the other, and the kinematic properties are obtained. Due to a built-in orbital motion, a tripode joint cannot be used alone between two shafts of fixed axes; therefore it cannot directly be compared with a typical CV (constant-velocity) joint. Yet it is shown that: (a) if its shafts are kept parallel to a fixed plane a tripode joint transmits equal rotations as other CV joints do; (b) if one shaft axis is fixed and the other shaft axis has a fixed point, input and output angular velocities slightly differ, with a cycle of three times shaft speed; (c) to transmit rotation between two shafts of fixed axes, a tripode joint must be incorporated with another tripode or CV joint or a mechanism. In this case deviation between input and output angular velocities can be made very small or even nil.
Composition analysis of anodic SiO<sub>2</sub>/Si interface region using the XPS method (1993)

Abstract Silicon oxide film, which has been used as a protective and active layer in Si devices, has been fabricated electrochemically at room temperature. The fabrication method is anodization combining a constant current and constant voltage mode. Ethylene glycol was used as an electrolyte. To improve the characteristics of silicon oxide film and also the interfacial property of the film with an Si substrate, the oxide film was annealed under hydrogen atmosphere. The depth profile of an atomic concentration was measured by X‐ray photoelectron spectrum (XPS). The thickness of the oxide film was varied by etching with p ‐etchant. The as‐grown film is composed of nonstoichiometric silicon oxide of sub‐oxides, SiO 2 , SiO, and Si 2 O 3 , which are nonuniformly present near the Si‐oxide interface up to 40 Å from the Si surface. The remainder of the oxide is stoichiometric amorphous SiO 2 . After annealing, the amount of sub‐oxides decreases.
Irvine Ankle Arthroplasty (1976)

A total ankle arthroplasty (IAA) design is presented for highly selected cases. The design stems from investigations on the anatomical and biomechanical characteristics of the human ankle joint. The prostheses are inserted through an anterior approach. Full weight-bearing is well tolerated within a few days. The immediate results on 20 ankles are most encouraging.
NETPLAN-a telecommunications network planning support system (2003)

A software system, NETPLAN, for supporting telecommunications network planning has been developed. It is implemented using Prolog with a user-friendly graphical interface based on X Windows and Motif. The three basic activities of network planning (routing design, one-way and both-way junction circuit design, and signaling network design for circuit-switched networks) are fully supported. The dimensioning of the junction circuits is optimized by considering noncoincidental busy hour traffic characteristics of the various routes using the 24-hour traffic profile. The object-oriented approach adopted by NETPLAN eliminates the need for defining traffic and routing matrices as required by conventional approaches. The usefulness of the system is illustrated by its application to the planning of a network with ten switching nodes and twenty interconnected links.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Active Site Modifications in a Double Mutant of Liver Alcohol Dehydrogenase:  Structural Studies of Two Enzyme−Ligand Complexes<sup>,</sup> (1998)

The oxidation of alcohol to aldehyde by horse liver alcohol dehydrogenase (LADH) requires the transfer of a hydride ion from the alcohol substrate to the cofactor nicotinamide adenine dinucleotide (NAD). A quantum mechanical tunneling contribution to this hydride transfer step has been demonstrated in a number of LADH mutants designed to enhance or diminish this effect [Bahnson, B. J., et al. (1997) Proc. Natl. Acad. Sci. U.S.A. 94, 12797-12802]. The active site double mutant Phe93 --> Trp/Val203 --> Ala shows a 75-fold reduction in catalytic efficiency relative to that of the native enzyme, and reduced tunneling relative to that of either single mutant. We present here two crystal structures of the double mutant: a 2.0 A complex with NAD and the substrate analogue trifluoroethanol and a 2.6 A complex with the isosteric NAD analogue CPAD and ethanol. Changes at the active site observed in both complexes are consistent with reduced activity and tunneling. The NAD-trifluoroethanol complex crystallizes in the closed conformation characteristic of the active enzyme. However, the NAD nicotinamide ring rotates away from the substrate, toward the space vacated by replacement of Val203 with the smaller alanine. Replacement of Phe93 with the larger tryptophan also produces unfavorable steric contacts with the nicotinamide carboxamide group, potentially destabilizing hydrogen bonds required to maintain the closed conformation. These contacts are relieved in the second complex by rotation of the CPAD pyridine ring into an unusual syn orientation. The resulting loss of the carboxamide hydrogen bonds produces an open conformation characteristic of the apoenzyme.
Synthesis of a radiolabelled retinoid X receptor (RXR) specific ligand (1997)

Synthesis of 4-[2-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-naphthalen-2-yl)-[1,3]dioxolan-2-yl]-benzoic acid or SR11237, a specific ligand of Retinoid X Receptors, is described in a 3H-labelled version. The labelled retinoid was prepared in 5 steps and tritium was introduced through a final reduction of an aromatic dihalide moiety with 3H2. © 1997 John Wiley & Sons, Ltd.
Synthesis and Analysis of Planar Optical Waveguides as pH Sensors (2018)

Objective and Method: In this paper, dye is used as pH sensors. We here report the study of the effect of pH solutions on Methyl red doped polystyrene and Bromocresol Purple doped Styrene acrylonitrile waveguides. The effect of pH solutions was observed on the absorption spectra and output intensity of the waveguides. </P><P> Conclusion: It was observed that for pH solutions to which the dye is sensitive, output intensity decreased and it was clearly seen in absorption spectra too. Methyl red doped polystyrene waveguides showed sensitivity for pH range 5-6 and Bromocresol purple doped Styrene acrylonitrile waveguides showed sensitivity for pH range 5-9. These dye-doped polymer waveguides can be used as pH sensors.
Mass-spectrometric identification and sequence location of the ten residues of the new amino acid (γ-Carboxyglutamic acid) in the <i>N</i>-terminal region of prothrombin (1976)

The detailed mass-spectrometric evidence for our original findings [Magnusson et al. (1974) FEBS Lett. 44, 189-193] of ten gamma-carboxyglutamic acid residues in the N-terminal calcium-binding polypeptide of prothrombin is presented. The identification and sequence location of gamma-carboxyglutamic acid was made by electron-impact and field-desorption studies on acetyl permethyl peptide derivatives, and on the free amino acid. Details of the derivatives formed, and how this new amino acid may be easily recognized and sequenced from the mass spectrum, are given as a basis for future work.
The Preparation of Terephthalic Acid from Phthalic or Benzoic Acid (1957)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Preparation of Terephthalic Acid from Phthalic or Benzoic AcidYoshiro Ogata, Masaru Tsuchida, and Akihiko MuramotoCite this: J. Am. Chem. Soc. 1957, 79, 22, 6005–6008Publication Date (Print):November 1, 1957Publication History Published online1 May 2002Published inissue 1 November 1957https://pubs.acs.org/doi/10.1021/ja01579a043https://doi.org/10.1021/ja01579a043research-articleACS PublicationsRequest reuse permissionsArticle Views715Altmetric-Citations21LEARN 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 Get e-Alerts
Average Reservoir Pressure Estimates in a Commingled Reservoir (1997)

Summary Late-transient buildup responses at a well that produces a two-layer reservoir with no-crossflow are studied. The well is located at the center of a circle and the outer boundaries are assumed to be impermeable. The initial pressure is identical in each layer. Our emphasis is on the determination of average reservoir pressure. This study provides (i) a complete description of the buildup trace following the initial-transient period (or the semilog straight line should it exist) by obtaining analytical expressions that highlight the influence of the variables that affect the trace, (ii) a physical interpretation for the value of pressure that corresponds to the level portion of the buildup curve, (iii) an interpretation of average pressure estimate obtained by using the Matthews-Brons-Hazebroek functions for single-layer systems (in this regard a number of insights are provided), (iv) a theoretical justification for the application of the Muskat and the Arps-Smith methods to estimate average reservoir pressure, and (v) a direct method to compute average reservoir pressure. Results are extended to multilayer systems.
Properties of extra-embryonic ectoderm isolated from postimplantation mouse embryos (1977)

Extra-embryonic ectoderm isolated from the mouse embryo as late as 81/2 days post coitum can form cells with the morphological characteristics of trophoblast giant cells both in ectopic sites and in vitro. This similarity to the properties of ectoplacental cone tissue provides further support for the postulated common origin of both tissues from the trophectoderm of the blastocyst.
Sexual health experts welcome use of home testing kits for STIs (2006)

Home testing kits for gonorrhoea, syphilis and Chlamydia are being trialled as part of a project that could transform sexual health screening.
Motion simulator for a multi-degree-of-freedom magnetically levitated robot (2011)

Magnetically levitated robots can move without lubrication, they generally have advantages to the use in the various special environments such as in a dust-free room, in a vacuum, in a flammable atmosphere, and in vivo. Meanwhile, they have a disadvantage of small working volume corresponding to the allowable air gap between the levitated object and the electromagnets. In some cases, to construct a combination of a magnetically levitated robot and an external manipulation device which has a comparatively large working volume seems an effective way to expand the whole working volume. On that premise, we are developing an experimental system for collaborative work between a multi-degree-of-freedom (3-DOF) magnetically levitated robot and an external manipulation device. To make full use of the range of movement of the multi-degree-of-freedom magnetically levitated robot, we are also developing an simulator system of the robot in parallel. This paper presents the derivation and the configuration of the simulator system and the results of preliminary experiments and simulations which have been performed to evaluate the effectiveness of the simulator.