gebhart/patrepeval huggingface dataset:
The eCommerce Customer Journey: A Model to Assess and Compare the User Experience of the eCommerce Websites (2009)

Despite the considerable growth of the B2c eCommerce in the main European markets and in US (Forrester, 2008), the main figures show that the concentration of the market is very high and its value represents a limited part of the overall retail sales only. As a consequence the path to realize the full potential of the B2c eCommerce is still long and several hurdles have to be overcome. In this paper we focus our attention on the merchants, with the strong conviction that the offering is much differentiated in terms of customer experience (i.e. the path the customers follow from the landing on the website to the payment of the product/service). This is very important in determining the success of an eCommerce website, but it is very hard to be distinguished, analyzed and evaluated and there is a lack of contributions trying to estimate it in a quantitative and/or objective way. In order to fill this gap, this paper provides a model that aims at evaluating the customer experience of an eCommerce website. The model is based on a Customer Journey Map made of the five main phases the consumer goes through while purchasing on a B2c eCommerce website: landing, product identification, product presentation, cart, order completion and payment. The phases have been analyzed in detail taking into account at least 15 drivers/features each. One of the key output of the analysis accomplished with the model is a curve representative of the customer experience of a specific website made of five points (one point per phase), with values between 0 (low) and 1 (high level), that allows the reader to make comparisons between different eCommerce websites and identify their strengths and weaknesses. The reader will find a framework to evaluate the customer experience on a B2c eCommerce website in a quantitative way, in order to make comparisons with other merchants and identify the main areas to be improved to fill the gap with the competitors.
A Fully Integrated Multistage Cross-Coupled Voltage Multiplier With No Reversion Power Loss in a Standard CMOS Process (2016)

This brief presents a fully integrated cross-coupled voltage multiplier for boosting dc-to-dc converter applications. The proposed design applies a new structure of cross-coupled voltage doubler (CCVD) and a clock scheme that eliminates all of the reversion power loss and increases the power efficiency (PE). In addition, this design is scalable to multiple-stage voltage doubler (voltage multiplier) as the maximum gate-to-source/drain or drain-to-source voltage does not exceed the nominal power supply V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">dd</sub> . As a result, such a design is compatible with the standard CMOS process without any overstress voltage. The proposed single-stage CCVD and three-stage cross-coupled voltage multiplier are implemented in 0.13-μm IBM CMOS process with maximum PE values of 88.16% and 80.2%, respectively. The maximum voltage conversion efficiency reaches 99.8% under the supply voltage of 1.2 V.
Improved detecting method for multiple rotating reference frames based harmonic control of PMSMs (2020)

Harmonic current in permanent magnet synchronous motors (PMSMs) is inevitable because of the nonlinearities of inverters and back electromotive force (EMF) harmonics. It can be used to reduce the energy loss and/or torque ripple of PMSM if well-controlled. One effective way of detecting and control harmonic current is a multiple reference frame (MRF) method. However, the detecting performance of traditional low-pass filter based detecting method of MRF deteriorates when the magnitude of fundamental current is much higher than harmonics, which is common in electric vehicles application. To suppress the fundamental current interference, a novel detecting methods are proposed in this paper by extracting the total harmonic currents before MRF transformation. The total harmonic currents is extracted by a subtracter and a fundamental current estimator utilizing the dynamic response characteristic of current control. The simulation and experimental results verify that the proposed method can improve the harmonic detecting accuracy and speed under high current excitation, and is also compatible with the MRF based harmonic control.
The Sulfonation of Pyridine and the Picolines (1943)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Sulfonation of Pyridine and the PicolinesS. M. McElvain and M. A. GoeseCite this: J. Am. Chem. Soc. 1943, 65, 11, 2233–2236Publication Date (Print):November 1, 1943Publication History Published online1 May 2002Published inissue 1 November 1943https://pubs.acs.org/doi/10.1021/ja01251a063https://doi.org/10.1021/ja01251a063research-articleACS PublicationsRequest reuse permissionsArticle Views1652Altmetric-Citations37LEARN 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
ScBO&lt;inf&gt;3&lt;/inf&gt;:Cr--A room temperature near-infrared tunable laser (1986)

We report the first room temperature tunable laser in a borate single crystal. A tuning range of 787-892 nm has been demonstrated in a ScBO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> : Cr laser. The laser loss is estimated to be 1.3 percent/cm from our preliminary laser results. Spectroscopic measurements indicate that the material is clear of absorption loss in the lasing spectral region, and the relative fluorescence efficiency for the entire Cr absorption band in the visible region is nearly unity. ScBO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> :Cr holds promise as a high efficiency near-infrared tunable laser.
Some Chlorine Derivatives of Norbornane (Bicyclo[2.2.1]heptane) (1954)

The endo-cis and trans-5,6-dichloronorbornenes were prepared by the respective additions of cis- and trans-dichlorocthylene to cyclopentadiene. The sterochemical assigments were confirmed by dipole moment studies. The cis-dichloride was inert to hydrolysis while the trans isomer was hydrolyzed to 3,5-dihydroxynortricyclene. Hydrogenation of the dichloride isomers gave the endo-cis- and trans-2,3-dichloronorbornanes. Contrary to expectations based on preferential trans-elimination of hydrogen halide, the saturated cis-dichloride appeared to dehydrohalogenate somewhat less readily than the trans isomer, although the reaction was slow in both cases. Both isomers gave the same dehydrohalogenation product, 2-chloronorbornene, the structure of which was confirmed by oxidation to cis-cyclopentane-1,3-dicarboxylica cid and hydrolysis to norcamphor. Chlorination of norbornene at - 75º gave nortricyclyl chloride and syn-7-exo-2-dichloronorbornane. The structure of the latter was assigned (in preference to exo-cis-2,3-dichloronorbornane)because of the compound's relative inertness to dehydrohalogenating reagents. endo-cis-2,3-Dichloronorbornane was not readily hydrolyzed, but trans-2,3-dichloronorbornane and syn-7-exo-2-dichloronorbornane hydrolyzed to anti- and syn-7-exo-Z-norborneol, respectively. The syn-isomer also was obtained by addition of hypochlorous acid to norbornene. The structures of the chloro alcohols were inferred from their modes of formation and oxidation to chlorine-containing dicarboxylic acids which were presumed to be, respectively, trans- and cis-2-chloro-cis-cyclopentane-1,3-dicarboxylic acids. These acids were different from trans-and cis-4-chloro-cis-cyclopentane-1,3-dicarboxylic acids obtained by oxidation of exo- and endo-dehydronorbornyl chlorides, respectively. The assignments of the syn and anti configurations to the ketones were confirmed by dipole moment measurements. The syn and anti-chlorohydrins were converted by pyrolysis of their carboxylic acid esters in low yield to syn- and anti-7-chlorotiorbornenes. Each of the latter substances on hydrogenation gave the same compound, 7-chloronorbornane.
Software defined service migration through legacy service integration into 4G networks and future evolutions (2015)

With the ongoing worldwide deployment of 4G networks and consequent drop of the utilization ratio of legacy networks, network operators need a cost-effective way to flexibly operate and manage networks. The obligatory continuation of legacy services in their respective legacy networks consistently incurs OPEX. In this situation, we argue that network operators can benefit from the recent advances in SDN and NFV. This article introduces a blueprint for designing a novel network architecture that integrates legacy network services into 4G networks through SDN/NFV's software-based characteristics. In addition, our architecture reduces time to market for employing newly emerging services without mandating any changes in 4G infrastructures.
Hypocarbia and Bronchopulmonary Dysplasia (1995)

GARLAND ET al<sup>1</sup>report in this issue that a retrospective observational analysis of multiple possible risk variables for bronchopulmonary dysplasia (BPD) turned up the association of low Pco<sub>2</sub>values before surfactant treatment with BPD. Intuitively, low Pco<sub>2</sub>values suggest better lung function in the preterm infant and might be expected to indicate a decreased risk for BPD. Is the association identified by Garland et al<sup>1</sup>real or the result of data dredging for associations with BPD? Does this observation tell us something important about how we might decrease the incidence of BPD? The association of low Pco<sub>2</sub>values very early in the course of respiratory distress syndrome (RDS) with subsequent BPD is a new observation. Nevertheless, it is consistent with previous associations relating Pco<sub>2</sub>levels to BPD. Avery et al<sup>2</sup>reported in 1987 that the incidence of BPD was similar across seven
Analysis and design of a modular, high power converter with high efficiency for electrical power distribution systems (2003)

The analysis and design of a modular high power converter is presented, suitable to replace a typical power distribution transformer in future. The novel converter consists of three simple converter cells, each containing a high frequency transformer with high insulation capability. The converter allows a redundant operation in case of a failure of one converter cell. In addition, the modular structure of the converter guarantees an easy and fast adaptation of different voltage systems with different power frequency ratings. The operation principle of the converter is discussed and general mathematical expressions are derived to estimate the stress of all components of the power train. In addition, a simple low loss snubber is introduced to reduce the switching losses of the primary sided switches and therefore to improve the efficiency of the converter. With the snubber circuitry an overall efficiency of 98% is achieved. Experimental results of a prototype with an output power of 105 kW demonstrate the suitability of the topology selected. Measurements were compared with calculations to confirm the theoretical investigations performed.
Summary of the seminar on wavelets sponsored by AVIRG (1992)

article Summary of the seminar on wavelets sponsored by AVIRG Share on Author: Mei Kobayashi View Profile Authors Info & Claims ACM SIGNUM NewsletterVolume 27Issue 1Jan. 1992 pp 5–8https://doi.org/10.1145/130830.130835Online:01 January 1992Publication History 0citation70DownloadsMetricsTotal Citations0Total Downloads70Last 12 Months1Last 6 weeks0 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
Language processing for arabic microblog retrieval (2012)

The use of social media has profoundly affected social and political dynamics in the Arab world. In this paper, we explore the Arabic microblogs retrieval. We illustrate some of the challenges associated with Arabic microblog retrieval, which mainly stem from the use of different Arabic dialects that vary in lexical selection, morphology, and phonetics and lack orthographic and spelling conventions. We present some of the required processing for effective retrieval such as improved letter normalization, elongated word handling, stopword removal, and stemming
Editorial Announcement (2003)

It is my pleasure to announce that Tad Schmaltz of Duke University will be the new Editor of the Journal of the History of Philosophy. He will assume the editorship August 1, 2003, and I wish him much success.
Structural basis for a human glycosylation disorder caused by mutation of the <i>COG4</i> gene (2009)

The proper glycosylation of proteins trafficking through the Golgi apparatus depends upon the conserved oligomeric Golgi (COG) complex. Defects in COG can cause fatal congenital disorders of glycosylation (CDGs) in humans. The recent discovery of a form of CDG, caused in part by a COG4 missense mutation changing Arg 729 to Trp, prompted us to determine the 1.9 A crystal structure of a Cog4 C-terminal fragment. Arg 729 is found to occupy a key position at the center of a salt bridge network, thereby stabilizing Cog4's small C-terminal domain. Studies in HeLa cells reveal that this C-terminal domain, while not needed for the incorporation of Cog4 into COG complexes, is essential for the proper glycosylation of cell surface proteins. We also find that Cog4 bears a strong structural resemblance to exocyst and Dsl1p complex subunits. These complexes and others have been proposed to function by mediating the initial tethering between transport vesicles and their membrane targets; the emerging structural similarities provide strong evidence of a common evolutionary origin and may reflect shared mechanisms of action.
LiveOps: systems management as a service (2006)

Existing Management Systems do not detect the most time-consuming and technically difficult anomalies administrators encounter. Oppenheimer [25] found that 33 % of outages were caused by human error and that 76 % of the time taken to resolve an outage was taken by humans determining what change was needed. Defining anomaly detection rules is challenging and often cannot be shared across organizations. It requires a deep combined knowledge of the software, workload, system configuration, and tuning parameters specific to the workload and overall distributed application topology. We present LiveOps, a scalable systems and security management service based on auditing the interactions between applications and the persistent state they use [33]. This approach simplifies identifying security vulnerabilities, performs compliance auditing, enables forensic investigations, detects patching problems, optimizes troubleshooting, and detects malware/ intrusions. The service enables knowledge sharing across organizations and administrative boundaries and allows for seamless integration between analysis results from disparate management products that build on it. Our configuration-free agent collects all read and write access to registry entries, files, binaries, and process creation. The agents streaming lossless compression creates log files of only 20 MB per day containing an average of 45 million events. The scalable LiveOps back-end service can analyze 1000 machine days of logs in 30 minutes. LiveOps agents have been deployed on 1149 machines from home systems to corporate desktops, including 381 production MSN servers across 11 sites.
An Economic Removal of Ni(II) from Aqueous Solutions Using an Indigenous Adsorbent (2009)

Carbon slurry, dried in open air, has been used as an adsorbent material for the removal of nickel(II) from aqueous solutions at different experimental conditions in batch adsorption technique. The time required to attain equilibrium was found to be 50 minutes. The effects of initial concentration of Ni(II), particle size of adsorbent, adsorbent dose, temperature and pH on removal of nickel(II) have been studied. The removal was favored at higher pH, the pH value for maximum adsorption being 10.00. Batch adsorption kinetics has been described by the Lagergren equation. Langmuir and Freundlich isotherms were applied and both isotherms were seen to be applicable over the concentration range studied. Thermodynamic parameters indicate the endothermic nature of Ni(II) adsorption on carbon slurry.
Transfer of chimeric plasmids among Salmonella typhimurium strains by P22 transduction. (1982)

Salmonella typhimurium bacteriophage P22 transduced plasmids having P22 sequences inserted in the vector pBR322 with high frequency. Analysis of the structure of the transducing particle DNA and the transduced plasmids indicates that this plasmid transduction involves two homologous recombination events. In the donor cell, a single recombination between the phage and the homologous sequences on the plasmid inserted the plasmid into the phage chromosome, which was then packaged by headfuls into P22 particles. The transducing particle DNA contained duplications of the region of homology flanking the integrated plasmid vector sequences and lacked some phage genes. When these defective phage genomes containing the inserted plasmid infected a recipient cell, recombination between the duplicated regions regenerated the plasmid. A useful consequence of this sequence of events was that genetic markers in the region of homology were readily transferred from phage to plasmid. Plasmid transduction required homology between the phage and the plasmid, but did not depend on the presence of any specific P22 sequence in the plasmid. When the infecting P22 carried a DNA sequence homologous to the ampicillin resistance region of pBR322, the vector plasmid having no P22 insert could be transduced. P22-mediated transduction is a useful way to transfer chimeric plasmids, since most S. typhimurium strains are poorly transformed by plasmid DNA.
Solid-Phase PCR in Microwells: Effects of Linker Length and Composition on Tethering, Hybridization, and Extension (2002)

During the solid-phase PCR (SP-PCR), DNA oligonucleotides complementary to a soluble template and immobilized on a surface are extended in situ. Although primarily used for pathogen detection, SP-PCR has the potential for much broader application, including disease diagnostics, genotyping, and expression studies. Current protocols for SP-PCR in microwells are suitable for enzymatic detection of immobilized products, but yields are generally insufficient for direct detection of products using conventional fluorescent probes. Here, we quantitatively measure the outcome of tethering, hybridization, and solid-phase extension, and examine the effect of composition and length of the spacer at the 5' end of tethered oligonucleotides. Our results indicate that steric hindrance primarily affects polymerase activity rather than the efficiency of hybridization between the template and the tethered oligonucleotide. SP-PCR yields are significantly higher for a five-unit hexaethyleneglycol (HEG) spacer than for the more commonly used 10-residue deoxythymidine spacer. The optimal 5' HEG spacer resulted in a 60-fold increase in extension efficiency relative to a previously reported value for SP-PCR on a glass surface. Thus, optimized spacers should allow direct quantification of SP-PCR products, providing a simple, quantitative, and cost effective means of sample analysis for a variety of applications.
The role of bystin in embryo implantation and in ribosomal biogenesis (2007)

Human bystin was identified as a cytoplasmic protein directly binding to trophinin, a cell adhesion molecule potentially involved in human embryo implantation. Although the trophinin gene is unique to mammals, the bystin gene (BYSL) is conserved across eukaryotes. Recent studies show that bystin plays a key role during the transition from silent trophectoderm to an active trophoblast upon trophinin-mediated cell adhesion. Bystin gene knockout and knockdown experiments demonstrate that bystin is essential for embryonic stem cell survival and trophectoderm development in the mouse. Furthermore, biochemical analysis of bystin in human cancer cells and mouse embryos indicates a function in ribosomal biogenesis, specifically in processing of 18S RNA in the 40S subunit. Strong evidence that BYSL is a target of c-MYC is consistent with a role for bystin in rapid protein synthesis, which is required for actively growing cells.
Production of aromatic acids by microorganisms. VII. Regulatory properties of anthranilate synthetase from Corynebacterium glutamicum. (1975)

Anthranilate synthetase from Corynebacterium glutamicum ATCC 13032 was studied using the dialyzed cell-free extract. The reaction mechanism of the enzyme was found to be of ping-pong type. The Km values for chorismate and L-glutamine were 4.8×10-5M and 5.9×10-3M, respectively. Enzyme activity was strongly inhibited by L-tryptophan competitively with respect to chorismate and noncompetitively with respect to L-glutamine. This competitive inhibition of anthranilate synthetase activity by L-tryptophan means that the enzyme reaction would proceed in the condition under which sufficient amount of chorismate is supplied and explains rationally the excretion of L-tryptophan and anthranilate by a phenylalanine and tyrosine double auxotroph of C. glutamicum, KY 9456, in the medium supplemented with limiting amounts of L-phenylalanine and L-tyrosine. Formation of anthranilate synthetase in C. glutamicum KY 9285, a tryptophan auxotroph, was sensitive to the repression by L-tryptophan.
The National Library of Medicine (2002)

The National Library of Medicine, located in Bethesda, MD, is the largest repository of medical literature in the world. Its vast holdings now comprise 2.3 million volumes and 3.6 million additional items, including manuscripts; photographs, prints, and other pictorial material; and extensive collections of microfilmed and audiovisual records. Today, this world-famous library faces a range of challenges related to the storage of the formidable volume of new material from around the world, the preservation of older documents, and the demand for technology-driven dissemination of information.