gebhart/patrepeval huggingface dataset:
Adaptive inter color residual prediction for efficient red-green-blue intra coding (2011)

Intra coding of an RGB video is important to many high fidelity multimedia applications because video acquisition is mostly done in RGB space, and the coding of decorrelated color video loses its virtue in high quality ranges. In order to improve the compression performance of an RGB video, this paper proposes an inter color prediction using adaptive weights. For making full use of spatial, as well as inter color correlation of an RGB video, the proposed scheme is based on a residual prediction approach, and thus the incorporated prediction is performed on the transformed frequency components of spatially predicted residual data of each color plane. With the aid of efficient prediction employing frequency domain inter color residual correlation, the proposed scheme achieves up to 24.3% of bitrate reduction, compared to the common mode of H.264/AVC high 4:4:4 intra profile.
Time-resolved study of Raman gain in highly confined silicon-on-insulator waveguides (2004)

We show time-resolved measurement of Raman gain in Silicon submicron-size planar waveguide using picosecond pump and probe pulses. A net nonlinear gain of 6 dB is obtained in a 7-mm long waveguide with 20.7-W peak pump power. We demonstrate an ultrafast all-optical switch based on the free-carrier dispersion effect in the silicon waveguide, whose transmission is enhanced by more than 13 dB due to the Raman effect.
Leptospires in the whistling frog (Eleutherodactylus johnstonei) on Barbados. (1990)

Two groups of whistling frogs (Eleutherodactylus johnstonei) comprising 99 and 117 animals were examined for leptospiral infection. Group I animals were caught in 14 areas of Barbados, and Group II animals in seven areas of suburban Bridgetown. Leptospires were isolated from the kidneys or body fluid of six frogs in Group I and the kidneys of 3 frogs in Group II. Two of the Group I isolates died out; the others were identified as bajan (a new serovar in the Australis serogroup) (6) and bim (Autumnalis) (1). The macerated body tissues and fluid of Group I frogs were put into phosphate buffered saline and examined by the microscopic agglutination test using 22 antigens. The results were all negative. For the Group II frogs the methodology was altered; blood was collected onto filter paper discs and allowed to dry out before being agitated in PBS and examined by the MAT. 15/117 (12.8%) animals were positive at greater than or equal to 1:100 and 19 (16.2%) at greater than or equal to 1:50. The geometric mean titre was 179. Seventeen of the sera reacted predominantly to antigens in the Australis serogroup, and two to Pyrogenes on its own. The serological results reflected the identity of the isolates. Serovars of Australis are not known to cause illness on Barbados, but bim is the commonest cause of severe leptospirosis on the island.
Cytomegalovirus-encoded β chemokine promotes monocyte-associated viremia in the host (1999)

Chemokine homologs are encoded by many large DNA viruses, suggesting that they contribute to control of host leukocyte transmigration and trafficking during viral infection. Murine cytomegalovirus carries a CC (beta) chemokine homolog gene giving rise to two related proteins, murine cytomegalovirus chemokine 1 and 2 (MCK-1 and MCK-2). MCK-1 peptide was found to induce calcium signaling and adherence in murine peritoneal macrophages. Cells bearing human chemokine receptor CCR3 and the human macrophage THP1 cell line were responsive to MCK-1. This pattern suggested that MCK-1 might act as an agonist, promoting leukocyte trafficking during viral infection. Consistent with this prediction, MCK-1/MCK-2 mutant viruses exhibit dramatically reduced peak levels of monocyte-associated viremia in experimentally infected mice. Thus, MCK-1/MCK-2 appears to promote host leukocyte migration to initial sites of infection and may be responsible for attracting monocytes or macrophages that efficiently disseminate virus in the host.
The GLC1H Glaucoma Locus May Reflect Glaucoma With Elevated Intraocular Pressure—Reply (2007)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA Ophthalmology HomeNew OnlineCurrent IssueFor Authors Podcast Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA Ophthalmology journal
Adenosine strongly potentiates pressor responses to nicotine in rats. (1984)

Intravenous infusion of subhypotensive doses of adenosine strongly potentiates the pressor response of anesthetized rats to nicotine. A dose of nicotine (40 micrograms/kg, i.v.), which, given alone, elicits a peak increase in diastolic pressure of approximately equal to 15 mm Hg, increases pressure by approximately equal to 70 mm Hg when arterial plasma adenosine levels have been increased to 2 microM from a basal concentration of approximately equal to 1 microM. The pressor response to cigarette smoke applied to the lungs is also strongly potentiated during infusion of adenosine. Slightly higher adenosine concentrations (approximately equal to 4 microM) attenuate pressor responses to electrical stimulation of preganglionic sympathetic nerves, or to injections of the alpha-adrenergic agonist phenylephrine, but continue to potentiate pressor responses to nicotine. Low doses (0.25-5 micrograms/kg) of the synthetic adenosine receptor agonists 5'-N-cyclopropylcarboxamidoadenosine, 2-chloroadenosine, and N6-L-phenylisopropyladenosine also potentiate pressor responses to nicotine. Caffeine and theophylline (10 mg/kg) block the potentiating effect of adenosine, and also decrease basal responses to nicotine, suggesting that endogenous adenosine might normally potentiate some nicotine responses. The synergism between nicotine and adenosine appears to take place within sympathetic ganglia.
Real-Time Distance Research with IP Network Videoconferencing: Extending Undergraduate Research Opportunities (2004)

This report discusses the development and initiation of an undergraduate distance research project facilitated by synchronous video communication via the Internet. The pilot program had 3 steps: (1) the undergraduate researcher was trained in the fundamental principles of capillary electrophoresis (CE) using a Web site developed in-house; (2) the home-site mentor traveled to the distant site to assemble and install the CE instrument with the undergraduate researcher; and (3) identical experiments were conducted in real-time using duplex video communication. To assess the feasibility of distance communication for undergraduate research, interviews, journal logs, and examinations were used to determine improvement in the student's understanding of the research project, knowledge in the field of chemical separations, laboratory skill, and confidence.
Joint Spatio-Temporal Filtering Methods for DOA and Fundamental Frequency Estimation (2014)

In this paper, spatio-temporal filtering methods are proposed for estimating the direction-of-arrival (DOA) and fundamental frequency of periodic signals, like those produced by the speech production system and many musical instruments using microphone arrays. This topic has quite recently received some attention in the community and is quite promising for several applications. The proposed methods are based on optimal, adaptive filters that leave the desired signal, having a certain DOA and fundamental frequency, undistorted and suppress everything else. The filtering methods simultaneously operate in space and time, whereby it is possible resolve cases that are otherwise problematic for pitch estimators or DOA estimators based on beamforming. Several special cases and improvements are considered, including a method for estimating the covariance matrix based on the recently proposed iterative adaptive approach (IAA). Experiments demonstrate the improved performance of the proposed methods under adverse conditions compared to the state of the art using both synthetic signals and real signals, as well as illustrate the properties of the methods and the filters.
Effects of Soil Moisture and Texture on Oviposition Preference of the Bean Leaf Beetle, Cerotoma trifurcata (Forster) (Coleoptera: Coccinellidae)1 (1983)

Journal Article Effects of Soil Moisture and Texture on Oviposition Preference of the Bean Leaf Beetle, Cerotoma trifurcata (Forster) (Coleoptera: Coccinellidae) Get access P. G. Marrone, P. G. Marrone North Carolina State University, Raleigh, North Carolina 27650 Search for other works by this author on: Oxford Academic PubMed Google Scholar R. E. Stinner R. E. Stinner North Carolina State University, Raleigh, North Carolina 27650 Search for other works by this author on: Oxford Academic PubMed Google Scholar Environmental Entomology, Volume 12, Issue 2, 1 April 1983, Pages 426–428, https://doi.org/10.1093/ee/12.2.426 Published: 01 April 1983 Article history Received: 30 April 1982 Published: 01 April 1983
Observations of Bs0→ψ(2S)η and B(s)0→ψ(2S)π+π− decays (2013)

First observations of the Bs0→ψ(2S)η, B0→ψ(2S)π+π− and Bs0→ψ(2S)π+π− decays are made using a dataset corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experiment in proton–proton collisions at a centre-of-mass energy of s=7 TeV. The ratios of the branching fractions of each of the ψ(2S) modes with respect to the corresponding J/ψ decays areB(Bs0→ψ(2S)η)B(Bs0→J/ψη)=0.83±0.14(stat)±0.12(syst)±0.02(B),B(B0→ψ(2S)π+π−)B(B0→J/ψπ+π−)=0.56±0.07(stat)±0.05(syst)±0.01(B),B(Bs0→ψ(2S)π+π−)B(Bs0→J/ψπ+π−)=0.34±0.04(stat)±0.03(syst)±0.01(B), where the third uncertainty corresponds to the uncertainties of the dilepton branching fractions of the J/ψ and ψ(2S) meson decays.
Photo-oxidation and Thermal Oxidations of Triptycene Thiols by Aryl Chalcogen Oxides (2020)

Oxidation of thiols yield sulfenic acids, which are very unstable intermediates. As sulfenic acids are reactive, they form disulfides in the presence of thiols. However, sulfenic acids also oxidize to sulfinic acids (-SO<sub>2</sub>H) and sulfonic acids (-SO<sub>3</sub>H) at higher concentrations of oxidants. Hydrogen peroxide is a commonly used oxidant for the oxidation of thiols to yield sulfenic acids. However, hydrogen peroxide also oxidizes other reactive functional groups present in a molecule. In this work, the reaction intermediates arising from the oxidation of sterically hindered thiols by aryl chalcogen oxides, dibenzothiophene <i>S</i>-oxide (DBTO), dibenzoselenophene <i>Se</i>-oxide (DBSeO), and dibenzotellurophene <i>Te</i>-oxide (DBTeO), were investigated. Photodeoxygenation of DBTO produces triplet atomic oxygen [O(<sup>3</sup>P)], which has previously shown to preferentially react with thiols over other functional groups. Similarly, aryl selenoxides have also shown that they can thermally react selectively with thiols at room temperature to yield disulfides. Conversely, aryl telluroxides have been reported to oxidize thiols to disulfides thermally with no selectivity toward thiols. The results from this study demonstrate that sulfenic acids are an intermediate in the oxidation of thiols by DBTeO and by photodeoxygenation of DBTO. The results also showed that the oxidation of thiols by DBSeO yields sulfonic acids. Triptycene-9-thiol and 9-fluorotriptycene-10-thiol were for the thiols used in this oxidation reaction. This work expands the list of oxidants that can be used to oxidize thiols to obtain sulfenic acids.
Solution Properties of the Exopolysaccharide Produced byPseudomonas MarginalisStrain HT041B1 (1997)

Abstract The solution properties of the exopolysaccharide marginalan produced by Pseudomonas marginalis HT041B were investigated by means of low-angle laser light-scattering, capillary viscometry, and rheology. Potentiometric and viscosimetric data indicated the absence of a cooperative transition of the disorder-to-order type. The experimental findings obtained in dilute solution (Mark-Houwink coefficients, rigidity coefficient, characteristic ratio) suggested that the polymer behaves like a semiflexible chain which adopts a disordered conformation. The rheological behaviour of more concentrated marginalan solutions, as determined by means of both steady shear and oscillatory measurements, further confirmed the disordered conformational state of the polymer in solution.
Sample variability and time stability in scaled silicon nanowires (2009)

We explain variability observed for the resonant tunnelling transport through donors in scaled silicon nanowires by the influence of charge configuration changes at the edges between the channel and the source-drain regions. This charge configuration is remarkably robust with respect to ageing effects, thermal cycling and the associated Id-Vg characteristics at low temperature constitute a real ldquoelectro-fingerprintrdquo for the samples. This stability is prerequisite for applications based on the gate control of single donor orbitals in nanoscale CMOS devices.
15 W Single Frequency Optically Pumped Semiconductor Laser With Sub-Megahertz Linewidth (2013)

We report on a single frequency optically pumped semiconductor laser exhibiting an output power of 15 W in continuous wave operation. The GaAs-based structure presents an emission wavelength of 1020 nm and a tuning range , with a continuous tunability of 9 GHz. The TEM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">00</sub> output beam exhibits very low transverse phase fluctuations across the entire mode, leading to a beam quality . A free-running laser linewidth of 21 kHz has been deduced from frequency noise measurements for a sampling time of 1 ms and increases to 995 kHz for a sampling time of 1 s.
Decomposition and Calibration of Multi-Component Data in the Common Shot Domain (2004)

D026 DECOMPOSITION AND CALIBRATION OF MULTI-COMPONENT DATA IN THE COMMON SHOT DOMAIN Abstract 1 Recent advances in multi-component seabed seismic acquisition technology enable the use of spatially compact filters to decompose and calibrate recordings in the common shot domain with significant advantages compared to conventional receiver domain frequency-wavenumber algorithms. We illustrate the feasibility of such an approach and discuss some practical aspects. Introduction D.J. VAN MANEN 1 J.O.A. ROBERTSSON 2 T. RØSTEN 3 L. AMUNDSEN 3 AND A. STRØMMEN-MELBØ 1 1 WesternGeco Product Technology Centre Oslo Schlumberger House Solbråveien 23 1383 - Asker Norway 2 Schlumberger Cambridge Research Ltd. 3
High specific activity tritium labeling of vitamin D derivative RO275646 (2005)

Abstract The octahydroindenone intermediate was tritium labeled using T 2 O isotope exchange labeling, and then elaborated to the vitamin D derivative RO275646. Though this method of labeling was expected to give the minor isomer, it was the shortest and most convenient route to the high specific activity metabolically stable labeled sites. A total of 34 mCi (from two separate runs) at 64 Ci/mmol of [ 3 H]‐RO275646 were prepared by this method. Copyright © 2005 John Wiley &amp; Sons, Ltd.
A new waveform inversion workflow: Application to near-surface velocity estimation in Saudi Arabia (2012)

Waveform inversion is the most theoretically accurate near-surface velocity estimation tool. It is able to solve for complex near-surface velocity structure where conventional ray-based methods fail. If errors in the initial model are too large, waveform inversion will fail to converge to the correct model. This convergence problem is particularly true for large near-surface velocity contrasts and velocity inversions. In such cases, first break traveltimes will become discontinuous and ray-based methods will be unable to reconstruct the velocity. We propose to address this issue with a new inversion workflow that adds a wave-equation traveltime inversion step prior to waveform inversion. The performance of our approach is evaluated on both synthetic and field data.
UDP-glucose promotes neutrophil recruitment in the lung (2020)

In addition to their role in glycosylation reactions, UDP-sugars are released from cells and activate widely distributed cell surface P2Y 14 receptors (P2Y 14 R). However, the physiological/pathophysiological consequences of UDP-sugar release are incompletely defined. Here, we report that UDP-glucose levels are abnormally elevated in lung secretions from patients with cystic fibrosis (CF) as well as in a mouse model of CF-like disease, the βENaC transgenic (Tg) mouse. Instillation of UDP-glucose into wild-type mouse tracheas resulted in enhanced neutrophil lung recruitment, and this effect was nearly abolished when UDP-glucose was co-instilled with the P2Y 14 R antagonist PPTN [4-(piperidin-4-yl)-phenyl)-7-(4-(trifluoromethyl)-phenyl-2-naphthoic acid]. Importantly, administration of PPTN to βENaC-Tg mice reduced neutrophil lung inflammation. These results suggest that UDP-glucose released into the airways acts as a local mediator of neutrophil inflammation.
Asymmetric Synthesis of the Squalene Synthase Inhibitor Zaragozic Acid C (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAsymmetric Synthesis of the Squalene Synthase Inhibitor Zaragozic Acid CDavid A. Evans, James C. Barrow, James L. Leighton, Albert J. Robichaud, and Michael SefkowCite this: J. Am. Chem. Soc. 1994, 116, 26, 12111–12112Publication Date (Print):December 1, 1994Publication History Published online1 May 2002Published inissue 1 December 1994https://pubs.acs.org/doi/10.1021/ja00105a085https://doi.org/10.1021/ja00105a085research-articleACS PublicationsRequest reuse permissionsArticle Views2377Altmetric-Citations91LEARN 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-AlertscloseSupporting Info (2)»Supporting Information Supporting Information Get e-Alerts
Effects of Host Plant and Temperature on the Biology ofToxoptera citricida(Homoptera: Aphididae) (1999)

Journal Article Effects of Host Plant and Temperature on the Biology of Toxoptera citricida (Homoptera: Aphididae) Get access Y. Q. Tang, Y. Q. Tang 1USDA–ARS, U.S. Horticultural Research Laboratory, 2120 Camden Road, Orlando, FL 32803–1419.2To whom correspondence should be addressed: Biological Control Research Institute, Fujian Agricultural University, Fuzhou, Fujian 35002 China. Search for other works by this author on: Oxford Academic PubMed Google Scholar S. L. Lapointe, S. L. Lapointe 1USDA–ARS, U.S. Horticultural Research Laboratory, 2120 Camden Road, Orlando, FL 32803–1419. Search for other works by this author on: Oxford Academic PubMed Google Scholar L. G. Brown, L. G. Brown 3Division of Plant Industry, P.O. Box 147100, 1911 SW 34th Street, Gainesville, FL 32614–7100. Search for other works by this author on: Oxford Academic PubMed Google Scholar W. B. Hunter W. B. Hunter Search for other works by this author on: Oxford Academic PubMed Google Scholar Environmental Entomology, Volume 28, Issue 5, 1 October 1999, Pages 895–900, https://doi.org/10.1093/ee/28.5.895 Published: 01 October 1999 Article history Received: 23 October 1998 Accepted: 17 June 1999 Published: 01 October 1999
Genetic algorithm solution of economic dispatch with valve point loading (1993)

A genetics-based algorithm is proposed to solve an economic dispatch problem for valve point discontinuities. The algorithm utilizes payoff information of candidate solutions to evaluate their optimality. Thus, the constraints of classical LaGrangian techniques on unit curves are circumvented. The formulations of an economic dispatch computer program using genetic algorithms are presented and the program's performances using two different encoding techniques are compared. The results are verified for a sample problem using a dynamic programming technique.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Consistent Domain Structure Learning and Domain Alignment for 2D Image-Based 3D Objects Retrieval (2020)

2D image-based 3D objects retrieval is a new topic for 3D objects retrieval which can be used to manage 3D data with 2D images. The goal is to search some related 3D objects when given a 2D image. The task is challenging due to the large domain gap between 2D images and 3D objects. Therefore, it is essential to consider domain adaptation problems to reduce domain discrepancy. However, most of the existing domain adaptation methods only utilize the semantic information from the source domain to predict labels in the target domain and neglect the intrinsic structure of the target domain. In this paper, we propose a domain alignment framework with consistent domain structure learning to reduce the large gap between 2D images and 3D objects. The domain structure learning module makes use of both the semantic information from the source domain and the intrinsic structure of the target domain, which provides more reliable predicted labels to the domain alignment module to better align the conditional distribution. We conducted experiments on two public datasets, MI3DOR and MI3DOR-2, and the experimental results demonstrate the proposed method outperforms the state-of-the-art methods.
Beyond One Glance: Gated Recurrent Architecture for Hand Segmentation (2018)

As mixed reality is gaining increased momentum, the development of effective and efficient solutions to egocentric hand segmentation is becoming critical. Traditional segmentation techniques typically follow a one-shot approach, where the image is passed forward only once through a model that produces a segmentation mask. This strategy, however, does not reflect the perception of humans, who continuously refine their representation of the world. In this paper, we therefore introduce a novel gated recurrent architecture. It goes beyond both iteratively passing the predicted segmentation mask through the network and adding a standard recurrent unit to it. Instead, it incorporates multiple encoder-decoder layers of the segmentation network, so as to keep track of its internal state in the refinement process. As evidenced by our results on standard hand segmentation benchmarks and on our own dataset, our approach outperforms these other, simpler recurrent segmentation techniques, as well as the state-of-the-art hand segmentation one. Furthermore, we demonstrate the generality of our approach by applying it to road segmentation, where it also outperforms other baseline methods.