gebhart/patrepeval huggingface dataset:
IPTV over Wimax: Overview on the video path from the server to the Wimax end-user (2008)

In this paper we will have an overview on Television and video streams, how they are generated, how they are transmitted over an Internet Protocol (IP) network. This technique, known as IPTV, requires fulfillment of Quality of Service (QoS) parameters, as well as Quality of Experience (QoE) parameters, to deliver an application-dependant quality video reception. We will mainly focus on the transmission over the access network Wimax, the "last mile hop" that delivers wirelessly the stream to the end-user.
121. Long-chain alkylpyridines and their derivatives. New examples of liquid crystals (1938)

G. A. Knight and B. D. Shaw, J. Chem. Soc., 1938, 682 DOI: 10.1039/JR9380000682
The Application of Localisation to near Infrared Calibration and Prediction through Partial Least Squares Regression (2003)

Near infrared (NIR) calibration and prediction represents a strategy for solving the inverse problem of determining the input sample property from its output NIR spectrum. The spectrum is an indirect measurement of the property that has been smoothed, leading to a loss of information. As a result, small changes in the spectra can, on occasions, correspond to large changes in the property. However, the well-established mathematical theory of regularisation has been developed for the solution of indirect measurement and inverse problems. Regularisation seeks an approximation to the input that simultaneously forces the model output to agree closely with the observed output and guarantees that appropriate constraints about the behaviour of the input are satisfied. In partial least squares regression, this is achieved through the simultaneous fitting of a model to the measured spectra and another to the property data, with the models coupled through the same set of regression factors. It is this idea that must be carried over to localisation in order to transform it into a stabilised algorithm. In other words, localisation should be carried out with respect to both the spectrum and the property. This paper presents a theoretical basis for this concept together with the results of simulation experiments that compares the effects of localisation with respect to both the spectra and the property with spectrum only and property only localisation.
Post‐translation modification of proteins in tears (2010)

This is the first 2-DE study using sequential dyes to analyse phospho-, glyco- and total tear protein profiles (Pro-Q Diamond for phosphoprotein, Pro-Q Emerald for glycoprotein and Sypro Ruby for total protein). This method minimised the gel-gel variations, allowing better comparisons among the three profiles and generated a whole map of PTM profiles of tear protein. A novel tear protein, dermcidin, was identified for the first time in this study. The identification of this antimicrobial protein suggests a new model of defence in tears. In addition, we are able to present the first experimental evidence of the presence of glycosylated lipocalin 1 and cystatin S. Nucleobindin 2 was only detected using phospho staining, suggesting it is only phosphorylated in tears. This study provides the groundwork for understanding the PTM of tear proteins and consequently these methods could be useful in the search for biomarkers in tears.
Whole-body echo-planar MR imaging at 0.5 T. (1989)

The ultra-high-speed echo-planar imaging technique produces instant snapshot magnetic resonance images in exposure times ranging from approximately 10 to 100 msec. A particular variant, the modulus blipped echo-planar single-pulse technique (MBEST), possesses two advantages: First, it makes the technique experimentally more robust; second, it introduces inherent T2 weighting in the images. The authors have used MBEST with an exposure time of 64 msec to explore the potential range of clinical applications in a series of normal volunteers. Applications include evaluation of the heart, renal function, and gastrointestinal tract. All images were obtained with proton resonances at 22 MHz.
Stack‐and‐Denoise: A new method to stack seismic datasets (2006)

Stacking combines a collection of noisy seismic gathers, such as NMO‐corrected CMP gathers or migrated gathers, into a single less noisy seismic section. Existing techniques stack each gather independently, and in the process, ignore the tremendous structure of seismic signals. We propose a novel technique called Stack‐and‐ Denoise (SAD) that exploits the structure of seismic signals to obtain an enhanced stack. SAD comprises the following steps: (1) Estimate the signal‐to‐noise ratios (SNRs) for each trace in the gather using a new iterative algorithm called Leave‐Me‐Out; (2) Use the SNRs to perform a weighted stack of the noisy gathers (3) Attenuate the residual noise in the weighted stack using denoising in the wavelet, Fourier, or curvelet transform domain, for example. Though simple, SAD enjoys some desirable optimality properties. During synthetic and real data experiments, SAD significantly attenuated both multiples and random noise in the stacked estimate.
Image processing application in toll collection (2006)

Abstract — The toll rate charged for the usage of facilities such as a tunnel or a bridge is usually proportional to the number of axles possessed by a vehicle. However, it is sometimes difficult to determine the number of axles of a vehicle by the toll-booth operator and therefore, an automatic system that can identify the number of axles is sought. Instead of detecting the axle, wheels of a vehicle are tested and a method based on the Hough transform for detecting circles is proposed. As the system must be able to detect the correct number of wheels in real-time, sub-sampling based on the Haar Wavelet transform is applied. Experimental results show that the system is able to identify the wheel correctly and to process the input images in real-time.
Staphylococcal adherence to polyvinyl chloride and heparin-bonded polyurethane catheters is species dependent and enhanced by fibronectin (1987)

Intravenous hyperalimentation has improved the survival of premature infants. However, long-term placement of intravenous catheters may result in the development of catheter-related sepsis. Fibronectin in plasma contains binding sites for staphylococcal species as well as marked affinity for inert plastics and therefore may provide a substrate for bacterial adherence to indwelling catheters. We determined the adherence of labeled [( 3H]leucine) coagulase-positive (CPS) and coagulase-negative (CNS) staphylococci to untreated and fibronectin-coated polyvinyl chloride (PVC) and heparin-bonded polyurethane (HBP) catheter segments and quantitated the binding of 14C-labeled, purified fibronectin to these catheters. PVC catheter segments bound significantly more CNS than CPS (P less than 0.05), while HBP catheters bound more CPS than CNS (P less than 0.05). Fibronectin significantly increased the adherence of CPS to PVC catheters (P less than 0.05) and CNS to HBP catheters (P less than 0.05). PVC catheters bound more fibronectin (P less than 0.0001) than did HBP catheters. Catheter composition may influence the spectrum of nosocomial pathogens to which infants are susceptible through different bacterial adherences and interactions with adhesive proteins.
Integration of cellular front end modules on advanced high resistivity SOI RF CMOS technology (2011)

Since integration drives wireless business in order to achieve the appropriate cost and form factor, we see significant research concerning front end module (FEM) integration on silicon. In this quest, SOI technology has emerged as the technology of choice since the antenna switch and the power amplifier (PA) have been successfully integrated on SOI. In this paper, we will focus our investigation on high performance passive functions in order to demonstrate the capability of SOI CMOS technology to integrate the whole FEM. To do so, balun, harmonic filter, diplexer and directional coupler have been achieved in a 130 nm SOI CMOS technology. Measured performances are clearly competitive with most commercially available Integrated Passive Device (IPD) solutions, which paves the way of FEM silicon SOCs.
Design, structure and biological activity of β‐turn peptides of CD2 protein for inhibition of T‐cell adhesion (2004)

The interaction between cell-adhesion molecules CD2 and CD58 is critical for an immune response. Modulation or inhibition of these interactions has been shown to be therapeutically useful. Synthetic 12-mer linear and cyclic peptides, and cyclic hexapeptides based on rat CD2 protein, were designed to modulate CD2-CD58 interaction. The synthetic peptides effectively blocked the interaction between CD2-CD58 proteins as demonstrated by antibody binding, E-rosetting and heterotypic adhesion assays. NMR and molecular modeling studies indicated that the synthetic cyclic peptides exhibit beta-turn structure in solution and closely mimic the beta-turn structure of the surface epitopes of the CD2 protein. Docking studies of CD2 peptides and CD58 protein revealed the possible binding sites of the cyclic peptides on CD58 protein. The designed cyclic peptides with beta-turn structure have the ability to modulate the CD2-CD58 interaction.
Synthesis of acetals and ketals catalyzed by tungstosilicic acid supported on active carbon (2005)

Catalytic activity of activated carbon supported tungstosilicic acid in synthesizing 2-methyl-2-ethoxycarbonylmethyl- 1,3-dioxolane, 2,4-dimethyl-2-ethoxycarbonylmethyl-1,3-dioxolane, cyclohexanone ethylene ketal, cyclohexanone 1,2-propa- nediol ketal, butanone ethylene ketal, butanone 1,2-propanediol ketal, 2-phenyl-1,3-dioxolane, 4-methyl-2-phenyl-1,3-dioxolane, 2-propyl-1,3-dioxolane, 4-methyl-2-propyl-1,3-dioxolane was reported. It has been demonstrated that activated carbon supported tungstosilicic acid is an excellent catalyst. Various factors involved in these reactions were investigated. The optimum conditions found were: molar ratio of aldehyde/ketone to glycol is 1/1.5, mass ratio of the catalyst used to the reactants is 1.0%, and reaction time is 1.0 h. Under these conditions, the yield of 2-methyl-2-ethoxycarbonylmethyl-1,3-dioxolane is 61.5%, of 2,4-dimethyl- 2-ethoxycarbonylmethyl-1,3-dioxolane is 69.1%, of cyclohexanone ethylene ketal is 74.6%, of cyclohexanone 1,2-propanediol ketal is 80.1%, of butanone ethylene ketal is 69.5%, of butanone 1,2-propanediol ketal is 78.5%, of 2-phenyl-1,3-dioxolane is 56.7%, of 4-methyl-2-phenyl-1,3-dioxolane is 86.2%, of 2-propyl-1,3-dioxolane is 87.5%, of 4-methyl-2-propyl-1,3-dioxolane is 87.9%.
The question of Friedel-Crafts transformylations. Acid-catalyzed reactions of aromatic aldehydes with arenes (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe question of Friedel-Crafts transformylations. Acid-catalyzed reactions of aromatic aldehydes with arenesRoyston M. Roberts, Ahmed M. El-Khawaga, Kevin M. Sweeney, and Maher F. El-ZohryCite this: J. Org. Chem. 1987, 52, 8, 1591–1599Publication Date (Print):April 1, 1987Publication History Published online1 May 2002Published inissue 1 April 1987https://pubs.acs.org/doi/10.1021/jo00384a038https://doi.org/10.1021/jo00384a038research-articleACS PublicationsRequest reuse permissionsArticle Views2580Altmetric-Citations42LEARN 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
Multitaper power spectrum estimation and thresholding: wavelet packets versus wavelets (2002)

It was suggested that spectrum estimation can be accomplished by applying wavelet denoising methodology to wavelet packet coefficients derived from the logarithm of a spectrum estimate. The particular algorithm we consider consists of computing the logarithm of the multitaper spectrum estimator, applying an orthonormal transform derived from a wavelet packet tree to the log multitaper spectrum ordinates, thresholding the empirical wavelet packet coefficients, and then inverting the transform. For a small number of tapers, suitable transforms/partitions for the logarithm of the multitaper spectrum estimator are derived using a method matched to statistical thresholding properties. The partitions thus derived starting from different stationary time series are all similar and easily derived, and any differences between the wavelet packet and discrete wavelet transform (DWT) approaches are minimal. For a larger number of tapers, where the chosen parameters satisfy the conditions of a proven theorem, the simple DWT again emerges as appropriate. Hence, using our approach to thresholding and the method of partitioning, we conclude that the DWT approach is a very adequate wavelet-based approach and that the use of wavelet packets is unnecessary.
Medical images compression using statistical model for transmission and archiving (2002)

Shows that for medical images study, a mixture of Gaussian distributions provides the best fit for the majority of the non-zero coefficients, and using those conclusions, the quantification process can be improved compared to classical JPEG compression method.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Monolithisches RC-Element für leistungselektronische Anwendungen (2011)

In this work, a monolithic RC snubber for power electronics was developed that outperformed the state of the art in terms of characteristic electrical device parameters. For the production of the RC snubbers, trench holes were introduced in a silicon wafer and by deposition of various dielectrics and a metal contact, MIS capacitors were manufactured. A model for the optimum arrangement of the trench holes on the silicon wafer and the optimum trench hole diameter to achieve a maximum enlargement of the capacitance per consumed silicon surface area was developed. A process simulation of the etched trench holes was conducted to investigate the surface roughness and the dielectric layer properties in the trench holes. Based on the process simulation results, device simulations were performed to predict the electrical field distribution and the capacitance as well as the series resistance of the devices. To realize the RC snubber, a process was developed and the individual process steps were optimized. Especially, the parameteres of the etch process for the creation of the high aspect ratio trench holes in the silicon wafers were investigated. The conformity and the uniformity of various dielectric layers were identified and correlated with the electrical properties of the RC snubbers. The electrical characterization of the RC snubbers was done regarding the insulator capacitance, the breakdown voltage, the series resistance, and the temperature coefficients of the capacitance as well as the series resistance of the RC snubber. A promising trade-off between the achieved capacitance and the breakdown voltage were accomplished with a dielectric stack of 15 nm SiO2 and 508 nm Si3N4. The capacitance was 1,5 nF/mm2, the break down voltage was in the range of 500 V. Therefore, the RC snubbers are suitable for power electronic applications. The temperature coefficient of the capacitance was 85 ppm/°C. Compared to discrete RC snubbers for similar applications, this value is very low. Furthermore, the low parasitic series inductance allows for a low inductive coupling to the power switch to be attenuated.
Resúmenes de Investigación (2018)

Se resumen los siguientes trabajos: - El estudio de la motivación, la percepción de sí mismo y la autoeficacia de los estudiantes y su relación con sus proyectos educativos y laborales. Un aporte desde la Psicología de la Orientación. Dirección: Quattrocchi, P. Integrantes: Cassullo, G.L.; De Marco, M.; Moulia, L.; Siniuk, D. - Etica y deontología en el campo de la psicología de la orientación. Dirección: Tejedor, M.; Integrantes: Rodríguez, M. A.; De Andrea, N.; Gómez, M. C. - Evaluación de una estrategia de retención y permanencia en el sistema universitario: Programa “Volver a Mirar” de Reorientación Vocacional. Directora: Quiles, C.- Co-directora: Castignani, M. - Integrantes: De Ortúzar, M. ; Di Meglio, M. ; García M. N. ; Hernandez Hilario, V. ; Lachalde. M. ; Quiroga, M. ; Ruiz, M. ; Alvarez, L. ; Baiocco, E. ; Borsch, B. ; Funes, A. ; Saporiti, M.
DARTS-a dynamically adaptable transport service suitable for high speed networks (2002)

It has been shown that protocol processing represents a severe bottle-neck for high speed computer networks. The disadvantage of proposed solutions are their incompatibility with existing standardised protocol implementations and/or their complexity. One method of alleviating this limitation is to have an adaptable protocol stack, as proposed in this paper. Preliminary results are presented which show that significant gains in throughput can be achieved while still maintaining compatibility with existing standard protocol stacks.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Recovery of Corneal Innervation Following Photorefractive Keratoablation (1994)

Epithelial innervation was restored relatively quickly; otherwise, neural recovery was slow. The structure and architecture of the stromal nerves was abnormal even in the the specimens that were observed at 12 months. We hypothesize that corneal nerve damage induced by deep photoablations may correlate with the predictability problems and haze.
Vascular Endothelial Cell Growth–Activated XBP1 Splicing in Endothelial Cells Is Crucial for Angiogenesis (2013)

These results suggest that XBP1 can function via growth factor signaling pathways to regulate endothelial proliferation and angiogenesis.
Inhibition of cytochrome P-450 2E1 by diallyl sulfide and its metabolites (1991)

Diallyl sulfide, a major flavor ingredient from garlic, was previously shown to inhibit chemically induced carcinogenesis and cytotoxicity in animal model systems. It modulated cytochrome P-450 compositions by inactivating P-450 2E1 and inducing P-450 2B1. The present studies examined the inhibition of P-450 2E1 mediated p-nitrophenol hydroxylase activity by diallyl sulfide and its putative metabolites diallyl sulfoxide and diallyl sulfone (DASO2). Each compound displayed competitive inhibition of p-nitrophenol hydroxylase activity in incubations using liver microsomes from acetone-pretreated male Sprague-Dawley rats. Preincubation of the microsomes with DASO2 inactivated p-nitrophenol hydroxylase activity in a process that was time- and NADPH-dependent and saturable, exhibited pseudo-first-order kinetics, was protected by alternate substrate, was accompanied by a loss of microsomal P-450-CO binding spectrum, and was unaffected by exogenous nucleophile. The Ki value for DASO2 was 188 microM and the maximal rate of inactivation was 0.32 min-1. DASO2 was ineffective in the inactivation of ethoxyresorufin dealkylase, pentoxyresorufin dealkylase, or benzphetamine demethylase activity. Purified P-450 2E1 in a reconstituted system was inactivated in a time- and NADPH-dependent manner by DASO2. The metabolic conversion of diallyl sulfide to the sulfoxide and sulfone was observed in vivo and in vitro. The results suggest that diallyl sulfide inhibits the metabolism of P-450 2E1 substrates by competitive inhibition mechanisms and by inactivating P-450 2E1 via a suicide-inhibitory action of DASO2.
The Development of Embodied Cognition: Six Lessons from Babies (2005)

The embodiment hypothesis is the idea that intelligence emerges in the interaction of an agent with an environment and as a result of sensorimotor activity. We offer six lessons for developing embodied intelligent agents suggested by research in developmental psychology. We argue that starting as a baby grounded in a physical, social, and linguistic world is crucial to the development of the flexible and inventive intelligence that characterizes humankind.
An end-to-end demonstration of a receiver array based free-space photon counting communications link (2006)

NASA anticipates a significant demand for long-haul communications service from deep-space to Earth in the near future. To address this need, a substantial effort has been invested in developing a free-space laser communications system that can be operated at data rates that are 10-1000 times higher than current RF systems. We have built an end-to-end free-space photon counting testbed to demonstrate many of the key technologies required for a deep space optical receiver. The testbed consists of two independent receivers, each using a Geiger-mode avalanche photodiode detector array. A hardware aggregator combines the photon arrivals from the two receivers and the aggregated photon stream is decoded in real time with a hardware turbo decoder. We have demonstrated signal acquisition, clock synchronization, and error free communications at data rates up to 14 million bits per second while operating within 1 dB of the channel capacity with an efficiency of greater than 1 bit per incident photon.
Preparation of Some N-Substituted Amino Acid Analogs (1949)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation of Some N-Substituted Amino Acid AnalogsEmery M. GalCite this: J. Am. Chem. Soc. 1949, 71, 6, 2253–2254Publication Date (Print):June 1, 1949Publication History Published online1 May 2002Published inissue 1 June 1949https://doi.org/10.1021/ja01174a511RIGHTS & PERMISSIONSArticle Views89Altmetric-Citations3LEARN 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 (262 KB) Get e-Alerts Get e-Alerts
Using GOstats to test gene lists for GO term association (2006)

Abstract Motivation: Functional analyses based on the association of Gene Ontology (GO) terms to genes in a selected gene list are useful bioinformatic tools and the GOstats package has been widely used to perform such computations. In this paper we report significant improvements and extensions such as support for conditional testing. Results: We discuss the capabilities of GOstats, a Bioconductor package written in R, that allows users to test GO terms for over or under-representation using either a classical hypergeometric test or a conditional hypergeometric that uses the relationships among GO terms to decorrelate the results. Availability: GOstats is available as an R package from the Bioconductor project: Contact: sfalcon@fhcrc.org