gebhart/patrepeval huggingface dataset:
Synthesis and spectral characterization of a series of iron and ruthenium benzylidene complexes, Cp(CO)(L)M:CH(C6H4R)+ (M = Fe, Ru; L = CO, PPh3; R = p-H, p-F, p-CH3, p-OCH3). Barriers to aryl rotation and benzylidene transfer reactions (1989)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and spectral characterization of a series of iron and ruthenium benzylidene complexes, Cp(CO)(L)M:CH(C6H4R)+ (M = Fe, Ru; L = CO, PPh3; R = p-H, p-F, p-CH3, p-OCH3). Barriers to aryl rotation and benzylidene transfer reactionsM. Brookhart, William B. Studabaker, M. Beth Humphrey, and G. Ronald HuskCite this: Organometallics 1989, 8, 1, 132–140Publication Date (Print):January 1, 1989Publication History Published online1 May 2002Published inissue 1 January 1989https://pubs.acs.org/doi/10.1021/om00103a016https://doi.org/10.1021/om00103a016research-articleACS PublicationsRequest reuse permissionsArticle Views307Altmetric-Citations28LEARN 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 (1)»Supporting Information Supporting Information Get e-Alerts
Exploring the Ligand Preferences of the PHD1 Domain of Histone Demethylase KDM5A Reveals Tolerance for Modifications of the Q5 Residue of Histone 3 (2020)

Understanding the ligand preferences of epigenetic reader domains enables identification of modification states of chromatin with which these domains associate and can yield insight into recruitment and catalysis of chromatin-acting complexes. However, thorough exploration of the ligand preferences of reader domains is hindered by the limitations of traditional protein-ligand binding assays. Here, we evaluate the binding preferences of the PHD1 domain of histone demethylase KDM5A using the protein interaction by SAMDI (PI-SAMDI) assay, which measures protein-ligand binding in a high-throughput and sensitive manner <i>via</i> binding-induced enhancement in the activity of a reporter enzyme, in combination with fluorescence polarization. The PI-SAMDI assay was validated by confirming its ability to accurately profile the relative binding affinity of a set of well-characterized histone 3 (H3) ligands of PHD1. The assay was then used to assess the affinity of PHD1 for 361 H3 mutant ligands, a select number of which were further characterized by fluorescence polarization. Together, these experiments revealed PHD1's tolerance for H3Q5 mutations, including an unexpected tolerance for aromatic residues in this position. Motivated by this finding, we further demonstrate a high-affinity interaction between PHD1 and recently identified Q5-serotonylated H3. This work yields interesting insights into permissible PHD1-H3 interactions and demonstrates the value of interfacing PI-SAMDI and fluorescence polarization in investigations of protein-ligand binding.
DynaVenn: web-based computation of the most significant overlap between ordered sets (2019)

DynaVenn combines the calculation of the most significant overlap of different cohorts with an intuitive visualization of the results. It is freely available as a web service at http://www.ccb.uni-saarland.de/dynavenn.
Graded-index Standard Single-Mode Fiber for VCSEL Transmission around 850 nm (2019)

Graded-index standard single-mode fiber offers few-mode operation around 850 nm with better modal bandwidth over step-index fiber. We investigated feasibility of VCSEL transmission through link model analysis and demonstrated 100 m VCSEL transmission at 25Gb/s.
Blood Pressure and Dapagliflozin in Heart Failure With Mildly Reduced or Preserved Ejection Fraction (2022)

In DELIVER, risk by SBP was augmented in the lowest and highest categories and varied by endpoint examined. Dapagliflozin modestly decreased SBP compared with placebo. Dapagliflozin was similarly efficacious and safe across the range of baseline SBP. The beneficial effects of dapagliflozin were not accounted for the changes in SBP. (Dapagliflozin Evaluation to Improve the LIVEs of Patients With PReserved Ejection Fraction Heart Failure [DELIVER]; NCT03619213).
Optical frequency multiplication technique using cascaded modulator to achieve RF power advantage (2019)

An optical millimeter-wave generation scheme consisting of four Mach-Zehnder modulator in series, each biased at its maximum transmission point is analysed by an optical path tracing method. Simulation using Virtual Photonic Inc. software package is presented as a proof of concept. The simulation results show that the proposed architecture can perform frequency octupling function with a significant RF advantage. The suppression of carrier and other unwanted harmonics by design, lower RF input power, wide operating range in terms of modulation index with satisfactory performance, and a simple filterless architecture make this circuit an attractive choice to be integrated in any material platform that offers electro-optic modulators.
Six-month safety evaluation of robenacoxib tablets (Onsior™) in dogs after daily oral administrations (2018)

Robenacoxib was well tolerated at doses from 2 to 10 mg/kg/day and this 6-month study supports the safe use of Onsior™ (robenacoxib) tablets in dogs for the intended dosing regimen.
A Field-Proven Approach to Decreasing Survey Times During Connections While Drilling (2023)

Abstract Reducing connection time while drilling has been a critical task in any drilling operation to reduce both the rig costs and the risks of wellbore instability. One way of reducing the connection time is to decrease the survey times. This paper shows a novel way to accomplish this by using a two-fold approach: an enhanced bottom-hole assembly (BHA) start-up procedure and secondly, a modified algorithm on the mud-pulse telemetry (MPT) uplink decoding software. The enhanced measurement-while-drilling (MWD) BHA start-up procedure focuses on various process steps during the flow-off and flow-on phases. Start-up is, historically, a sequential process. The enhanced start-up procedure uses parallelized discovery of components (nodes) in the BHA, accelerated directional survey calculation, and dynamic rather than static timing of handshaking between nodes. The MPT uplink (the communication of downhole information to surface) decoding improvement focuses on identifying delays in the signal processing chain. The detection of the MPT uplink synchronization sequence with an enhanced correlation approach shows the biggest potential in delay reduction. The latest fleet of MWD BHAs contain an implementation of the new approach, successfully deployed for multiple customer wells in the US, Saudi Arabia, China and Mexico. These wells cover multiple well types, e.g. unconventional, hard rock and high-temperature. In total, deployment of BHAs containing the new approach in over 125 wells achieved an average of 25% reduction in survey times. These deployments have not shown compromised survey quality or decoding capabilities. Rather, the robustness of the synchronization sequence permits, in some cases, going on-bottom and drilling before synchronizing the uplink. Specifically, this has given customers the potential to drill miles-a-day wells more frequently. An additional advantage of the reduced latency in the MPT uplink is that all MWD or logging-while-drilling (LWD) data is available earlier rather than later, thus allowing more timely decisions and in the end reducing risk.
Example-based video color grading (2013)

In most professional cinema productions, the color palette of the movie is painstakingly adjusted by a team of skilled colorists -- through a process referred to as color grading -- to achieve a certain visual look. The time and expertise required to grade a video makes it difficult for amateurs to manipulate the colors of their own video clips. In this work, we present a method that allows a user to transfer the color palette of a model video clip to their own video sequence. We estimate a per-frame color transform that maps the color distributions in the input video sequence to that of the model video clip. Applying this transformation naively leads to artifacts such as bleeding and flickering. Instead, we propose a novel differential-geometry-based scheme that interpolates these transformations in a manner that minimizes their curvature, similarly to curvature flows. In addition, we automatically determine a set of keyframes that best represent this interpolated transformation curve, and can be used subsequently, to manually refine the color grade. We show how our method can successfully transfer color palettes between videos for a range of visual styles and a number of input video clips.
Behavior Training Reverses Asymmetry in Hippocampal Transcriptome of the Cav3.2 Knockout Mice (2015)

Homozygous Cav3.2 knockout mice, which are defective in the pore-forming subunit of a low voltage activated T-type calcium channel, have been documented to show impaired maintenance of late-phase long-term potentiation (L-LTP) and defective retrieval of context-associated fear memory. To investigate the role of Cav3.2 in global gene expression, we performed a microarray transcriptome study on the hippocampi of the Cav3.2-/- mice and their wild-type littermates, either naïve (untrained) or trace fear conditioned. We found a significant left-right asymmetric effect on the hippocampal transcriptome caused by the Cav3.2 knockout. Between the naive Cav3.2-/- and the naive wild-type mice, 3522 differentially expressed genes (DEGs) were found in the left hippocampus, but only 4 DEGs were found in the right hippocampus. Remarkably, the effect of Cav3.2 knockout was partially reversed by trace fear conditioning. The number of DEGs in the left hippocampus was reduced to 6 in the Cav3.2 knockout mice after trace fear conditioning, compared with the wild-type naïve mice. To our knowledge, these results demonstrate for the first time the asymmetric effects of the Cav3.2 and its partial reversal by behavior training on the hippocampal transcriptome.
ChemInform Abstract: STEREOSPECIFIC INTRAMOLECULAR DIELS‐ALDER REACTION OF AN O‐QUINONE METHIDE (1985)

Abstract Z‐Brom‐phenol (I) liefert die Dilithioverbindung (I1), die mit (R)‐Citronellal (III) über ein Addukt‐Gemisch (1 : l) (IV) zum Cyclisierungsprodukt (V) führt.
Synthesis and properties of N3 and CN delivery compounds and related precursors for nitride and ceramic fabrication (2008)

Abstract The simple azido and cyano compounds Cl 2 AsN 3 , Br 2 AsN 3 , (C 6 H 5 )SiH 2 N 3 , (C 6 H 5 )SiH 2 CN and p ‐(tolyl)SiH 2 CN have been prepared for the first time by metathesis reactions involving the corresponding halides and NaN 3 , LiN 3 and LiCN. These compounds represent a highly reactive and efficient family of delivery reagents for the preparation of N 3 and CN molecular precursors to bulk ceramics and nitride thin films. They are isolated as low volatility liquids and characterized by spectroscopic methods and chemical analysis. Ab initio simulations were used to elucidate the structural and vibrational properties of the simpler, fully inorganic Cl 2 AsN 3 and Br 2 AsN 3 species. This theoretical treatment was extended to include the hypothetical H 2 AsN 3 and HClAsN 3 derivatives which are particularly desirable as single‐source low‐temperature AsN sources for the formation of highly sought after, metastable GaAs 1− x N x materials for solar cell applications. The practical utility of the title molecules is also demonstrated by synthesizing several representative compounds of B, Be, Ga and Al, which are of interest for the development of open frameworks, optoelectronic nitrides and refractory BCN hybrids. The cyanide derivatives (C 6 H 5 )SiH 2 CN and p ‐(tolyl)SiH 2 CN react readily with Be and B halides to yield crystalline Be(CN) 2 and amorphous BCN. The latter is crystallized upon heating to form graphite‐like polymorphs with homogeneous nanoscale morphologies. The azide derivatives Cl 2 AsN 3 , Br 2 AsN 3 and (C 6 H 5 )SiH 2 N 3 react readily with GaBr 3 , GaCl 3 and BBr 3 to produce high yields of the previously reported Br 2 GaN 3 , Cl 2 GaN 3 and Br 2 BN 3 , respectively. The latter is shown to possess a trimeric molecular structure in which the α‐nitrogen of the azide group bridges the boron atoms to form cyclohexane‐like B 3 N 3 rings. Copyright © 2008 John Wiley &amp; Sons, Ltd.
RAMAN SPECTROSCOPY FOR IN VIVO TISSUE ANALYSIS AND DIAGNOSIS, FROM INSTRUMENT DEVELOPMENT TO CLINICAL APPLICATIONS (2008)

Raman spectroscopy is a noninvasive, nondestructive analytical method capable of determining the biochemical constituents based on molecular vibrations. It does not require sample preparation or pretreatment. However, the use of Raman spectroscopy for in vivo clinical applications will depend on the feasibility of measuring Raman spectra in a relatively short time period (a few seconds). In this work, a fast dispersive-type near-infrared (NIR) Raman spectroscopy system and a skin Raman probe were developed to facilitate real-time, noninvasive, in vivo human skin measurements. Spectrograph image aberration was corrected by a parabolic-line fiber array, permitting complete CCD vertical binning, thereby yielding a 16-fold improvement in signal-to-noise ratio. Good quality in vivo skin NIR Raman spectra free of interference from fiber fluorescence and silica Raman scattering can be acquired within one second, which greatly facilitates practical noninvasive tissue characterization and clinical diagnosis. Currently, we are conducting a large clinical study of various skin diseases in order to develop Raman spectroscopy into a useful tool for non-invasive skin cancer detection. Intermediate data analysis results are presented. Recently, we have also successfully developed a technically more challenging endoscopic Laser-Raman probe for early lung cancer detection. Preliminary in vivo results from endoscopic lung Raman measurements are discussed.
Enantiomerically pure β-phenylalanine analogues from α–β-phenylalanine mixtures in a single reactive extraction step (2009)

An efficient and selective method for the extraction of alpha-amino acids in preference over their beta-isomers using PdCl(2)(PPh(3))(2) was discovered, which enables the separation of product mixtures obtained in the enantioselective enzymatic formation of beta-amino acids.
Measurements of $$W^{+}W^{-}$$ production in decay topologies inspired by searches for electroweak supersymmetry (2023)

Abstract This paper presents a measurement of fiducial and differential cross-sections for $$W^{+}W^{-}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msup> <mml:mi>W</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:msup> <mml:mi>W</mml:mi> <mml:mo>-</mml:mo> </mml:msup> </mml:mrow> </mml:math> production in proton–proton collisions at $$\sqrt{s}=13$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>13</mml:mn> </mml:mrow> </mml:math> TeV with the ATLAS experiment at the Large Hadron Collider using a dataset corresponding to an integrated luminosity of 139 fb $$^{-1}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow/> <mml:mrow> <mml:mo>-</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msup> </mml:math> . Events with exactly one electron, one muon and no hadronic jets are studied. The fiducial region in which the measurements are performed is inspired by searches for the electroweak production of supersymmetric charginos decaying to two-lepton final states. The selected events have moderate values of missing transverse momentum and the ‘stransverse mass’ variable $$m_{\textrm{T2}}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>m</mml:mi> <mml:mtext>T2</mml:mtext> </mml:msub> </mml:math> , which is widely used in searches for supersymmetry at the LHC. The ranges of these variables are chosen so that the acceptance is enhanced for direct $$W^{+}W^{-}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msup> <mml:mi>W</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:msup> <mml:mi>W</mml:mi> <mml:mo>-</mml:mo> </mml:msup> </mml:mrow> </mml:math> production and suppressed for production via top quarks, which is treated as a background. The fiducial cross-section and particle-level differential cross-sections for six variables are measured and compared with two theoretical SM predictions from perturbative QCD calculations.
Efficient Large-Scale Domain Classification with Personalized Attention (2018)

In this paper, we explore the task of mapping spoken language utterances to one of thousands of natural language understanding domains in intelligent personal digital assistants (IPDAs). This scenario is observed for many mainstream IPDAs in industry that allow third parties to develop thousands of new domains to augment built-in ones to rapidly increase domain coverage and overall IPDA capabilities. We propose a scalable neural model architecture with a shared encoder, a novel attention mechanism that incorporates personalization information and domain-specific classifiers that solves the problem efficiently. Our architecture is designed to efficiently accommodate new domains that appear in-between full model retraining cycles with a rapid bootstrapping mechanism two orders of magnitude faster than retraining. We account for practical constraints in real-time production systems, and design to minimize memory footprint and runtime latency. We demonstrate that incorporating personalization results in significantly more accurate domain classification in the setting with thousands of overlapping domains.
Intermediate scale bandgap fluctuations in ultrathin Cu(In,Ga)Se2 absorber layers (2020)

Ultrathin single- and three-stage Cu(In,Ga)Se2 absorber layers were analyzed with room temperature photoluminescence (PL) spectra. An anomalous blueshift was observed upon increasing carrier injection for both samples. This blueshift was attributed to the presence of bandgap fluctuations that are of the same order as the minority carrier diffusion length. From time resolved measurements, a diffusion length of a few 100 nms was deduced. The single-stage spectrum consists of two peaks, and the sample was, therefore, also analyzed by hyperspectral imaging, providing lateral PL and reflectance data with 1 μm resolution. Marginal variations were observed in the PL yield and spectra. This homogeneity could again be attributed to an intermediate scale of the bandgap fluctuation with an upper limit of 1 μm for the scale of the lateral bandgap fluctuations. The two peaks in the PL spectra of the single-stage sample could be attributed to interference, and correction methods were applied. The bandgap fluctuations were extracted for the three-stage and single-stage sample and were 45 meV and 72 ± 3 meV, respectively. It is suggested that this difference is attributed to the smaller grains and larger amount of grain boundaries in the single-stage sample.
Intelligent Model for Predicting Downhole Vibrations Using Surface Drilling Data During Horizontal Drilling (2021)

Abstract Drillstring vibration is a major concern during drilling wellbore, and it can be split into three types: axial, torsional, and lateral. Many problems associate with the high drillstring vibrations as tear and wear in downhole tools, inefficient drilling performance, loss of mechanical energy, and hole wash-out. The high cost for the downhole measurement of the drillstring vibrations encourages machine learning applications toward downhole vibration prediction during drilling. Consequently, the objective of this paper is to develop an artificial neural network (ANN) model for predicting the drillstring vibration while drilling a horizontal section. The ANN model uses the surface drilling parameters as model inputs to predict the three types of drillstring vibrations. These surface drilling parameters are flowrate, mud pumping pressure, surface rotating speed, top drive torque, weight on bit, and rate of penetration. The study utilized a data set of 13,927 measurements from a horizontal well that was used to train the ANN model. In addition, a different data set (9284 measurements) was employed to validate the developed ANN model. Correlation coefficient (R) and average absolute percentage error (AAPE) are statistical metrics that are used to evaluate the model accuracy based on the difference between the actual and predicted values for the axial, torsional, and lateral vibrations. The results of the optimized parameters for the developed model showed a high correlation coefficient between the predicted and the actual drillstring vibrations that showed R higher than 0.95 and AAPE below 3.5% for all phases of model training, testing, and validation. The developed model proposed a model-based equation for real-time estimation for the downhole vibrations.
Diverse retrieval via greedy optimization of expected 1-call@k in a latent subtopic relevance model (2011)

It has been previously observed that optimization of the [email protected] relevance objective (i.e., a set-based objective that is 1 if at least one document is relevant, otherwise 0) empirically correlates with diverse retrieval. In this paper, we proceed one step further and show theoretically that greedily optimizing expected [email protected] w.r.t. a latent subtopic model of binary relevance leads to a diverse retrieval algorithm sharing many features of existing diversification approaches. This new result is complementary to a variety of diverse retrieval algorithms derived from alternate rank-based relevance criteria such as average precision and reciprocal rank. As such, the derivation presented here for expected [email protected] provides a novel theoretical perspective on the emergence of diversity via a latent subtopic model of relevance --- an idea underlying both ambiguous and faceted subtopic retrieval that have been used to motivate diverse retrieval.
A 4.7T/11.1T NMR compliant wirelessly programmable implant for bio-artificial pancreas in vivo monitoring (2014)

This paper presents the design, implementation, and nuclear magnetic resonance (NMR) measurements of a wireless, magnetic compliant, implant that increases the signal sensitivity of NMR images by 3.8dB and 2.6dB in 4.7T and 11.1T magnetic field strengths respectively. The device supports sustained reliable operation through a strongly coupled resonance wireless powering scheme in addition to improving high-resolution image SNR up to 73% within the region of interest.
ChemInform Abstract: Electrocatalysis on Pb2Ir2‐xPbxO7‐y. (1989)

Abstract The electrocatalytic properties of sintered pellets of Pb 2 Ir 2 O 7‐y and Teflon‐bonded particles of Pb 2 Ir 2‐x Pb x O 7‐y (I) with and without carbon are studied by cyclic voltammetry and steady‐state galvanostatic polarization.