gebhart/patrepeval huggingface dataset:
Ring Opening of Lactones and Anhydrides Induced by [Cp<sub>2</sub>ZrHCl]<i><sub>n</sub></i> (1996)

ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTRing Opening of Lactones and Anhydrides Induced by [Cp2ZrHCl]nNathalie Cénac, Maria Zablocka, Alain Igau, Jean-Pierre Majoral, and Aleksandra SkowronskaView Author Information Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex, France, and Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, Sienkiewicza 112, 90-363 Lodz, PolandCite this: J. Org. Chem. 1996, 61, 2, 796–798Publication Date (Web):January 26, 1996Publication History Received7 July 1995Published online26 January 1996Published inissue 1 January 1996https://pubs.acs.org/doi/10.1021/jo951222whttps://doi.org/10.1021/jo951222wbrief-reportACS PublicationsCopyright © 1996 American Chemical SocietyRequest reuse permissionsArticle Views381Altmetric-Citations18LEARN 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:Elements,Lactones,Oxides,Reaction products,Ring opening reactions Get e-Alerts
Cyberentity Security in the Internet of Things (2013)

A proposed Internet of Things system architecture offers a solution to the broad array of challenges researchers face in terms of general system security, network security, and application security.
Statistical modeling of device mismatch for analog MOS integrated circuits (1992)

A generalized parameter-level statistical model, called statistical MOS (SMOS), capable of generating statistically significant model decks from intra- and inter-die parameter statistics is described. Calculated model decks preserve the inherent correlations between model parameters while accounting for the dependence of parameter variance on device separation distance and device area. Using a Monte Carlo approach to parameter sampling, circuit output means and standard deviations can be simulated. Incorporated in a CAD environment, these modeling algorithms will provide the analog circuit designer with a method to determine the effect of both circuit layout and device sizing on circuit output variance. Test chips have been fabricated from two different fabrication processes to extract statistical information required by the model. Experimental and simulation results for two analog subcircuits are compared to verify the statistical modeling algorithms.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Recent advances in residue number techniques for recursive digital filtering (1979)

A new algorithm for scaling in residue number systems (RNS's) is presented for applying residue number theory to recursive digital filtering. The algorithm provides an efficient method for scaling the output of each recursive filter section for use in subsequent iterations of the recursion. Four classes of residue systems are described in which scaling is simple and quantization errors are minimized, thereby combining good quantization error performance with the advantages of high-speed residue arithmetic. A computer analysis of the scaling quantization errors is presented, as well as some results from a recursive residue simulation. Three hardware architectures are described for the realization of recursive residue filters.
Effects of Auxin and Phenobarbital on Morphogenesis and Production of Digitoxin in Digitalis Callus (1995)

Pieces of callus obtained from seedlings of Digitalis purpurea were grown on solid Murashige-Skoog's medium supplemented with 1 mg liter−1 BA and 0.1 mg liter−1 IAA or NAA, with or without phenobarbital (40 mg liter−1). The replacement of the natural auxin IAA by the synthetic auxin NAA increased callus growth and inhibited organogenesis, whereas the addition of phenobarbital had the opposite effect. Morphometric measurements revealed a high ratio of vacuole to cytoplasm (v/v) in callus cells. This ratio was affected by the different treatments in the same way as the fresh weight. The activity of mitochondrial cytochrome P450scc (the enzyme that provides the precursor, pregnenolone, for the biosynthesis of cardenolide in foxglove plants) was detected in the relevant fraction of callus grown under all experimental conditions, and its activity was increased by the addition of phenobarbital. The different treatments tested increased the cardenolide content and quantifiable amounts of digitoxin were detected in all callus tissues. It is of special interest that phenobarbital added to the culture medium increased the accumulation of digitoxin. The mechanism affecting the development and production of cardenolide in callus tissues of D. purpurea by phenobarbital and the replacement of IAA by NAA is discussed.
Real-time object detection using dynamic principal component analysis (2010)

In this work, we contribute to the real-time detection of buried objects, with special emphasis on explosive ones, using the ground penetrating radar (GPR). When the buried objects have explosive substance, the moment of detection becomes vital. Therefore, we start the detection process right after the very first GPR signals begin to return from the buried objects. For this purpose, we adopted the studies focusing on the online process monitoring methods using principal component analysis (PCA), and adapted them to the dynamic conditions of the ground. Different objects with varying dielectric properties are buried in the test environment and used for the evaluation of the proposed method. With the observed results, it is validated that, the proposed method is employable towards the real-time object detection.
Broad band amplitude noise of 40 Ghz subharmonically synchronous mode locked pulses (2002)

Recently, subharmonic synchronous mode-locking and subharmonic hybrid mode locking, where the pukes are synchronized by injection of optical pubs and RF signal at a subhamonic of the cavity resonance frequency, have been developed to stabilise the passively mode locked pulses from semiconductor lasers [l-3], where the limitation imposed by drive electronics is alleviated. This paper provides a detailed experimental investigation of broad band amplitude noise in optical pulses generated by a SSML laser, continuing the work recently reported on amplitude noise of SHML pulses.
Anterior Prefrontal Function and the Limits of Human Decision-Making (2007)

The frontopolar cortex (FPC), the most anterior part of the frontal lobes, forms the apex of the executive system underlying decision-making. Here, we review empirical evidence showing that the FPC function enables contingent interposition of two concurrent behavioral plans or mental tasks according to respective reward expectations, overcoming the serial constraint that bears upon the control of task execution in the prefrontal cortex. This function is mechanistically explained by interactions between FPC and neighboring prefrontal regions. However, its capacity appears highly limited, which suggests that the FPC is efficient for protecting the execution of long-term mental plans from immediate environmental demands and for generating new, possibly more rewarding, behavioral or cognitive sequences, rather than for complex decision-making and reasoning.
Pre-use intraoperative testing of autologous tissue for valvular surgery: a proof of concept study. (1999)

The basic mechanical properties of autologous tissue to be used for valvular repair or reconstruction should be determined to avoid use of tissue that is outside an expected range of values for strength, anisotropy/isotropy and thickness. A self-contained ITT, based on optical and mechanical principles, has been developed to measure those parameters.
Fluctuating ovarian function in a perimenopausal women. (1979)

Plasma follicle stimulating hormone (FSH) and luteinising hormone (LH) concentrations, and pregnanediol and oestrogen excretion rates, were measured in a perimenopausal woman from the first appearance of oligomenorrhoea until the onset of severe and persistent hot flushes two years later. Postmenopausal episodes characterised by hot flashes, amenorrhoea, high FSH levels (greater than or equal to 5IU/L) and low urinary oestrogens (less than or equal to 50 nmol/24hr), were followed by menstrual cycles in which the FSH levels were low (less than 5 IU/L) and there was an ovulatory pattern of oestrogen and pregnanediol excretion. An unusual association of high urinary oestrogens (greater than or equal to 50 nmol/24hr) with high gonadotrophin levels was observed on several occasions. The transient postmenopausal episodes were biochemically and symptomatically indistinguishable from the permanent amenorrhoea of postmenopausal women.
MicroRNAs in Hepatocellular Carcinoma: Carcinogenesis, Progression, and Therapeutic Target (2014)

Hepatocellular carcinoma (HCC) is the third leading cause of death from cancer, with dismal outcomes and an increasing incidence worldwide. Hepatocarcinogenesis is a multistep process that progresses from chronic hepatitis through cirrhosis and/or dysplastic nodule to HCC. However, the detailed molecular pathogenesis remains unclear. MicroRNAs (miRNAs), small noncoding RNAs that regulate the translation of many genes, have emerged as key factors involved in several biological processes, including development, differentiation, and cell proliferation. Recent studies have uncovered the contribution of miRNAs to the cancer pathogenesis, as they can behave as oncogenes or tumor suppressor genes. In addition, other studies have demonstrated their potential values in the clinical management of HCC patients as some miRNAs may be used as prognostic or diagnostic markers. In this review, we summarize current knowledge about the roles of miRNAs in carcinogenesis and progression of HCC. We also discuss the potential application of miRNAs as diagnostic biomarkers and their potential roles in the intervention of HCC.
Enhancing Python Compiler Error Messages via Stack Overflow (2019)

Background: Compilers tend to produce cryptic and uninformative error messages, leaving programmers confused and requiring them to spend precious time to resolve the underlying error. To find help, programmers often take to online question-and-answer forums such as Stack Overflow to start discussion threads about the errors they encountered. Aims: We conjecture that information from Stack Overflow threads which discuss compiler errors can be automatically collected and repackaged to provide programmers with enhanced compiler error messages, thus saving programmers' time and energy. Method: We present Pycee, a plugin integrated with the popular Sublime Text IDE to provide enhanced compiler error messages for the Python programming language. Pycee automatically queries Stack Overflow to provide customised and summarised information within the IDE. We evaluated two Pycee variants through a think-aloud user study during which 16 programmers completed Python programming tasks while using Pycee. Results: The majority of participants agreed that Pycee was helpful while completing the study tasks. When compared to a baseline relying on the official Python documentation to enhance compiler error messages, participants generally preferred Pycee in terms of helpfulness, citing concrete suggestions for fixes and example code as major benefits. Conclusions: Our results confirm that data from online sources such as Stack Overflow can be successfully used to automatically enhance compiler error messages. Our work opens up venues for future work to further enhance compiler error messages as well as to automatically reuse content from Stack Overflow for other aspects of programming.
Independent Interactions of Ubiquitin-Binding Domains in a Ubiquitin-Mediated Ternary Complex (2011)

Ubiquitin (Ub) modifications are transduced by receptor proteins that use Ub-binding domains (UBDs) to recognize distinct interaction faces on the Ub surface. We report the nuclear magnetic resonance (NMR) solution structures of the A20-like zinc finger (A20 Znf) UBD of the Ub receptor ZNF216, and its complex with Ub, and show that the binding surface on Ub centered on Asp58 leaves the canonical hydrophobic Ile44 patch free to participate in additional interactions. We have modeled ternary complexes of the different families of UBDs and show that while many are expected to bind competitively to the same Ile44 surface or show steric incompatibility, other combinations (in particular, those involving the A20 Znf domain) are consistent with a single Ub moiety simultaneously participating in multiple interactions with different UBDs. We subsequently demonstrate by NMR that the A20 Znf domain of ZNF216 and the UBA domain of the p62 protein (an Ile44-binding UBD), which function in the same biological pathways, are able to form such a Ub-mediated ternary complex through independent interactions with a single Ub. This work supports an emerging concept of Ub acting as a scaffold to mediate multiprotein complex assembly.
Modeling and experimental electro-optic response of dielectric lithium niobate waveguides used as electric field sensors (2011)

In this paper, the static optical transfer function of dielectric lithium niobate (LiNbO3) electro-optic sensors is modeled and experimentally measured. This function represents the transmitted optical power at the output of an optical waveguide in a LiNbO3 crystal which acts as an electric field sensor. The sensor is electrode-less and operates as a dielectric probe. Under such a condition, the electric field is present in the dielectric media surrounding the waveguide and the measured field intensity is determined by the boundary condition between the media and the LiNbO3 crystal. The electro-optic transfer function is theoretically modeled and experimentally measured. Such a transfer function shows a sinusoidal shape, from which the half-wave electric field, the optical extinction ratio and the linear and nonlinear regions can be determined. LiNbO3 electric field sensors are inherently wide band, and a sensing scheme is tested, showing a high-linearity sensing detection of high-intensity and wide-band electric fields.
The secure model for enterprise connectivity (2002)

The need for implementing data security over enterprise networks has been brought to the forefront of the e-commerce marketplace by an increasing number of incidents where confidential data is compromised or private information is abused by electronic intruders. The importance of data that is being stored, distributed and processed over the network medium has led to a strong focus on the security of the data, and the security of systems that contain and distribute it. The object of this new prototype is an alternative mode of enforcing security on enterprise networks by using algorithms aimed at data fragmentation rather than encryption. While encryption provides a means for scrambling data through the use of complex algorithms, this model proposes a mechanism for fragmenting the data stream in a way that reconstruction is possible only within a zone deemed safe by the implementation process. By binding the reconstruction process to a logical location within the safe area, it is possible to enforce a high level of safety around the entire data link process. The compromise of all data fragments would not allow reconstruction into the original form without the necessary complementary reconstruction algorithm. As another layer of security, the reconstruction algorithm would allow execution only from a predefined logical location on the enterprise domain, and would thus be rendered useless if executed from an intruder's location. This system ensures that the overhead involved with imposing higher encryption strengths is bypassed without loss of the security enforced over the system.
Interpolation using neural networks for digital still cameras (2000)

In this paper we present a color interpolation technique based on artificial neural networks for a single-chip CCD (charge-coupled device) camera with a Bayer color filter array (CFA). Single-chip digital cameras use a color filter array and an interpolation method in order to produce high quality color images from sparsely sampled images. We have applied 3-layer feedforward neural networks in order to interpolate a missing pixel from surrounding pixels. And we compare the proposed method with conventional interpolation methods such as the bilinear interpolation method and cubic spline interpolation method. Experiments show that the proposed interpolation algorithm based on neural networks provides a better performance than the conventional interpolation algorithms.
Developing inclusivity (2002)

A major challenge to securing lifelong learning is the response of universities and their funding bodies. In the UK, the Government has set out a clear commitment to change; this has been reflected in the Higher Education Funding Council for England (HEFCE) establishing a policy, planning and specific funding strategy with universities having to set out their policies, approaches and targets to widen participation. This is then measured through success in meeting those targets and published performance indicators. Attached to this approach is a funding stream which enables institutions to put into place actions to ensure success. This paper is based upon the work of the HEFCE national co-ordination team for widening participation (Action on Access), which has the responsibility of assisting achievement against the strategy. The paper will explain the HEFCE approach, compare it with a similar and earlier Australian strategy and demonstrate how institutional success is to be measured. There is always a risk that single item approaches become marginalized within a university as being the responsibility of a particular interest group. This development has been in response to Government direction, has the potential to shape and change institutions so that they become more inclusive; but does the policy add up?
Near-Infrared Attenuated Total Reflection Raman Spectroscopy for Polymer Surface Observation (2008)

We first constructed an apparatus for near-infrared attenuated total reflection Raman (ATR-Raman) spectroscopy and measured fluorescent polymer surfaces with near-infrared excitation. Near-infrared ATR-Raman spectra were observed without the aid of multiple reflections, resonance Raman effects, or surface-enhanced Raman effects. The usefulness of the constructed apparatus was evaluated by measuring the 130-nm-thick top layer of a layered polymer film. The incident-angle dependence of ATR-Raman intensity was analyzed based on a theory about the optical electric field at the interface between the prism and the top layer. We also observed the ATR-Raman spectra of an industrial fluorescent polymer film.
Quantitative Analysis of the Coverage Density of Br<sup>–</sup> Ions on Pd{100} Facets and Its Role in Controlling the Shape of Pd Nanocrystals (2013)

We report an approach based on a combination of inductively coupled plasma mass spectrometry and X-ray photoelectron spectroscopy for quantitative analysis of the role played by Br(-) ions in the synthesis of Pd nanocrystals. The Br(-) ions were found to adsorb onto Pd{100} facets selectively with a coverage density of ca. 0.8 ion per surface Pd atom. The chemisorbed Br(-) ions could be removed via desorption at an elevated temperature under reductive conditions. They could also be gradually released from the surface when Pd cubic seeds grew into cuboctahedrons and then octahedrons. On the basis of the coverage density information, we were able to estimate the minimum concentration of Br(-) ions needed for the formation of Pd nanocubes with a specific size. If the concentration of Br(-) ions was below this minimum value, not all of the {100} facets could be stabilized by the capping agent, leading to the formation of nanocubes with truncated corners. The quantitative analysis developed in this study is potentially extendable to other systems involving chemisorbed capping agents.
Crosstalk characteristics of Ti-LiNbO&lt;inf&gt;3&lt;/inf&gt;intersecting waveguides and their application as TE/TM mode splitters (1982)

Crosstalk characteristics of an intersecting waveguide are presented. Two straight channel waveguides which intersect at an angle of a few degrees on <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">y</tex> -cut LiNbO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> were fabricated by in-diffusion of Ti. Experimental results show that the crosstalk characteristics are determined by the refractive index change profile and the geometry of intersection associated with guided wave modes. In a special case, a TE/TM mode splitter was obtained by using the intersecting waveguide which provides adequate anisotropy by the change in refractive indices. Splitting ratio was 17 and 14 dB for the TE and TM modes, respectively.
Association of renal injury with combined cephalothin-gentamicin therapy among patients severely ill with malignant disease (1976)

There is a high incidence of primary renal tubule damage among patients with malignant disease who die following recent treatment with combinations of cephalothin and gentamicin. Administration of this combination of antibiotics appears to make the patient appreciably more susceptible to severe renal injury if an additional, often minor, insult to the renal tubules is superimposed. In the present study, significant blood loss or bacterial infection not promptly controlled by the antibiotic combination were two factors that provided this additional insult to many patients; the renal injury in these patients could not be attributed to bleeding or infection alone. The combination of cephalothin plus gentamicin carries the potential of causing renal tubule injury and places the patient severely ill with malignant disease at risk for renal failure from many clinical complications which are commonly associated with their primary illness.
The system architect's workbench (1988)

This paper presents an overview of The System Architect's Workbench, a behavioral synthesis system under development at Carnegie Mellon University. This system converts an abstract behavioral description of a piece of hardware into a set of register-transfer components and a control sequence table. Two-synthesis methodologies are supported: one is tuned specifically to design microprocessors, and the other supports a more general design style. Results are presented here for both approaches.