gebhart/patrepeval huggingface dataset:
Erratum: Field Expulsion and Reconfiguration in Polaritonic Photonic Crystals [Phys. Rev. Lett.90, 196402 (2003)] (2004)

our Letter, the lattice constant a was erroneously given as 29:7 m. The correct value is a 4:5 m so that ! T 26:7 THz 0:42c=a.
Beating Time and Space resolutions in Ultrasound for disruptive innovations in Medical Imaging (2016)

In the last fifteen years, the introduction of plane or diverging wave transmissions rather than line by line scanning focused beams has broken the conventional barriers of ultrasound imaging. By using such large field of view transmissions, the frame rate reaches the theoretical limit of physics dictated by the ultrasound speed and an ultrasonic map can be provided typically in tens of micro‐seconds (several thousands of frames per second). Interestingly, this leap in frame rate is not only a technological breakthrough but it permits the advent of completely new ultrasound imaging modes, including shear wave elastography, electromechanical wave imaging, ultrafast doppler, ultrafast contrast imaging, and even functional ultrasound imaging of brain activity (fUltrasound) introducing Ultrasound as an emerging full‐fledged neuroimaging modality. At ultrafast frame rates, it becomes possible to track in real time the transient vibrations – known as shear waves – propagating through organs. Such “human body seismology” provides quantitative maps of local tissue stiffness whose added value for diagnosis has been recently demonstrated in many fields of radiology (breast, prostate and liver cancer, cardiovascular imaging, …). Today, first clinical ultrafast ultrasound scanners are available in the clinical world with such real time imaging of tissue elasticity. This is the first example of an ultrafast Ultrasound approach now widely spread in the clinical medical ultrasound community. For blood flow imaging, ultrafast Doppler permits high‐precision characterization of complex vascular and cardiac flows. It also gives ultrasound the ability to detect very subtle blood flow in very small vessels. In the brain, such ultrasensitive Doppler paves the way for fUltrasound (functional ultrasound imaging) of brain activity with unprecedented spatial and temporal resolution compared to fMRI. Combined with contrast agents, our group demonstrated that Ultrafast Ultrasound Localization could provide a first in vivo and non‐invasive imaging modality at microscopic scales deep into organs. Many of these ultrafast modes should lead to major improvements in ultrasound screening, diagnosis, and therapeutic monitoring.
Binding of low concentration of peptide to H-2Kd produced in insect cells requires mouse β2-microglobulin co-expression (1992)

A recombinant baculovirus expressing the murine class I MHC heavy chain H-2Kd cDNA under the transcriptional control of Autografa californica nuclear polyhedrosis virus (AcNPV) polyhedrin promoter has been isolated and used to infect Sf9 lepidopteran cells either alone or in association with a previously isolated virus expressing mouse beta 2-microglobulina (beta 2-ma). When infected with the heavy chain-encoding virus alone, H-2Kd was produced in a beta 2-m-free conformation detected on the surface of infected cells by conformation-independent antibodies. When Sf9 cells were co-infected with both viruses, approximately 10% of the heavy chain pool was engaged in the formation of native heterodimeric MHC class I molecules, which were glycosylated and transported to the cell surface as demonstrated by radio-binding experiments and flow cytometry. The assembly of the recombinant class I molecule was dependent on peptide, since heterodimer formation was brought about by H-2Kd-specific peptide ligands both in vivo, upon incubation with dually infected cells, and in vitro, in cell-free detergent extracts. In addition, a change in heavy chain conformation was brought about upon incubation with high concentrations (100 microM) of an H-2Kd-restricted octapeptide epitope from Plasmodium berghei. Furthermore, using low concentrations (3 nM) of a photoaffinity label derivative of this peptide, we show direct binding to cells co-expressing class I heavy chain and mouse beta 2-m but not to cells expressing free heavy chain only.
Measurements of optical nonlinearities in solutions of phthalocyanines (1993)

Solutions of metallophthalocyanines and naphthalocyanines have shown promising results for use in optical limiting devices.
First record of the genus Discotylenchus Siddiqi, 1980 (Nematoda: Tylenchidae) from Iran, with description of one new and data on two known species (2012)

Ghaemi, Razieh, Pourjam, Ebrahim, Atighi, Mohammad Reza, Pedram, Majid, Karssen, Gerrit (2012): First record of the genus Discotylenchus Siddiqi, 1980 (Nematoda: Tylenchidae) from Iran, with description of one new and data on two known species. Zootaxa 3493: 72-82, DOI: 10.5281/zenodo.282451
Multistage second order blind signal separation (2007)

In this paper, we present a scheme which improve the convergence for the multistage second-order gradient based blind signal separation (BSS) algorithm. For the multistage second-order BSS, the constraints for each stage is relax where the constraints are formulated to ease the permutation effects. The presented scheme utilizes a search method in each iteration and each stage for an optimum step size. Evaluations of the proposed scheme in a real room environment show that the search for the optimum step size results in significantly faster convergence for the multistage BSS when compared with fixed step size gradient based algorithm.
Non-Parametric Texture Synthesis Using Texture Classification (2017)

In this paper we present a method of texture synthesis which removes the need for users to set, or even understand, parameters which have an impact on the synthesized output. We accomplish this by first classifying each input texture sample into one of three texture types: regular, irregular and stochastic. We found that textures within a class were synthesized well with similar parameters. If we know the input texture class, we can provide a good starting set of parameters for the synthesis algorithm. Instead of requiring a user to manually select a set of parameters, we simply ask that the user tell us whether the synthesized texture is satisfactory or not. If the output is not satisfactory, we adjust parameters and try again until the user is happy with the output. In this implementation we use the image quilting method in [1], a texture synthesis algorithm, as well as texture classification. With small adjustments our method can be applied to other texture synthesis methods.
Electronic structure of CMR manganites (invited) (1997)

A “colossal” negative magnetoresistance (CMR) occurs in manganites at a first-order ferromagnetic transition. The Mn4+ and high-spin Mn3+ ions each contain localized t3 configurations; the t3–pπ–t3 superexchange interactions are antiferromagnetic. The orbital degeneracy of localized Mn3+:t3e1, Eg5 configurations is lifted by cooperative static or dynamic Jahn–Teller deformations. Strong e-electron coupling to oxygen displacements, static or dynamic, introduces ferromagnetic e1–pσ–e0 interactions either via superexchange or, for fast Mn3+ to Mn4+ electron transfer relative to the spin-relaxation time (τh&amp;lt;τs), via a stronger double exchange. At the first-order ferromagnetic transition, a change from τh≈ℏ/Wσ&amp;gt;ωR−1 to τh&amp;lt;ωR−1 occurs within mobile molecular units, where Wσ is the bandwidth for states of e-orbital parentage and ωR−1 is the period of the optical-mode lattice vibration that traps a mobile hole as a small-polaron Mn4+ ion. TC increases with the fraction of double-exchange couplings, and this fraction increases with Wσ and ωR at the transition from polaronic to itinerant-electron behavior below TC. The bandwidth Wσ∼εσλσ2 cos φ〈cos(θij/2)〉 depends on the covalent mixing parameter λσ, which increases with pressure, as well as on the Mn–O–Mn bond angle (180°−φ), which increases with the tolerance factor t that measures the equilibrium bond-length mismatch, and on the angle θij between neighboring spins so that Wσ increases with the spontaneous magnetization on cooling below TC. In the compositions Ln0.7A0.3MnO3 with A=Ca or Sr, TC increases with t over the range 0.96⩽t⩽0.98 where the transition at TC is first order. The CMR is greatest near t≈0.96; it reflects a trapping out of mobile holes with decreasing temperature in the paramagnetic phase and their progressive release with decreasing temperature in the ferromagnetic phase where spin entropy is exchanged for configurational entropy.
A molecular model for drug binding to tandem repeats of telomeric G-quadruplexes (2009)

The extreme 3'-ends of human telomeres consist of 150-250 nucleotides of single-stranded DNA sequence together with associated proteins. Small-molecule ligands can compete with these proteins and induce a conformational change in the DNA to a four-stranded quadruplex arrangement, which is also no longer a substrate for the telomerase enzyme. The modified telomere ends provide signals to the DNA-damage-response system and trigger senescence and apoptosis. Experimental structural data are available on such quadruplex complexes comprising up to four telomeric DNA repeats, but not on longer systems that are more directly relevant to the single-stranded overhang in human cells. The present paper reports on a molecular modelling study that uses Molecular Dynamics simulation methods to build dimer and tetramer quadruplex repeats. These incorporate ligand-binding sites and are models for overhang-ligand complexes.
Synthetic studies on the flavone derivatives. XII. Synthesis of 2',3',5'- and 3',4',5'-trioxygenated flavones. (1984)

Two unusual flavones, 5, 5'-dihydroxy-2', 3', 6', 7-tetramethoxyflavone (1) from Gardenia cramerii and 4', 5-dihydroxy-3', 5', 6, 7-tetramethoxyflavone (6) from Artemisia mesatlantia, and their position isomers were synthesized to investigate the structural correlation in terms of spectral data. The structure of the flavone from G. cramerii is discussed.
Supplementary Table S21 from Functional Kinomics Identifies Candidate Therapeutic Targets in Head and Neck Cancer (2023)

&lt;p&gt;Table S21: Table S21. Drug sensitivity and TP53 mutational status data on squamous cell carcinoma cell lines from COSMIC on Wee1/Chk1 Inhibitor (681460)&lt;/p&gt;
Production and purification of recombinant human interleukin‐6 secreted by the yeast Saccharomyces cerevisiae (1991)

The coding region of the human interleukin-6 (hIL6) gene was fused to the prepro secretion signal of the alpha-mating factor gene in several yeast host strains. It was found that the KEX-2 protease was unable to cleave the prepro-Lys-Arg-Pro-IL6 sequence, but that unspecific cleavage of the precursor protein had occurred. The prepro-Lys-Arg-Ala-Pro-IL6 sequence, however, was correctly recognized and cleaved by the KEX-2 protease, and IL6 was efficiently secreted into the culture medium. The N-terminal Ala-Pro peptide was removed during processing by wild-type yeast strains, but was retained in a ste13 mutant. IL6 as well as the aberrant proteins were not glycosylated. The transformed cells could secrete up to 30 micrograms/ml IL6. The protein was purified from the medium to homogeneity by ion-exchange chromatography and gel filtration, and had a specific activity of about 2 x 10(8) IU/mg in a proliferation assay.
Vorticity measurements with an acoustic time-reversal mirror (2002)

Time-reversal invariance for acoustic propagation is broken when the propagating medium contains a flow. The authors take advantage of the violation of this symmetry to achieve a new way of characterizing the vorticity field of a flow with a double time-reversal mirror (TRM). The double TRM is made up of 2 arrays of piezo-electric transducers placed in front of each other and on either side of the flow. The time-reversal process is performed between the 2 arrays: when 1 array emits, the other 1 receives, time-reverses and re-emits the acoustic wave. In the presence of a flow, the acoustic wavefront is distorted at a crossing through the flow. However this distortion is related to the amplitude and size of the vorticity field of the flow and is often too small to be observed experimentally after 1 crossing. In order to amplify this wavefront distortion, the authors make the acoustic wave do several round trips through the flow between the 2 arrays. The greater number of crossings through the vorticity field induces an amplification of the effect of vorticity on the acoustic wavefront. This effect can then be easily measured and allows the authors to characterize vorticity even for small vorticity fields.
TCR‐induced alteration of primary MHC peptide anchor residue (2019)

The HLA-A*02:01-restricted decapeptide EAAGIGILTV, derived from melanoma antigen recognized by T-cells-1 (MART-1) protein, represents one of the best-studied tumor associated T-cell epitopes, but clinical results targeting this peptide have been disappointing. This limitation may reflect the dominance of the nonapeptide, AAGIGILTV, at the melanoma cell surface. The decapeptide and nonapeptide are presented in distinct conformations by HLA-A*02:01 and TCRs from clinically relevant T-cell clones recognize the nonapeptide poorly. Here, we studied the MEL5 TCR that potently recognizes the nonapeptide. The structure of the MEL5-HLA-A*02:01-AAGIGILTV complex revealed an induced fit mechanism of antigen recognition involving altered peptide-MHC anchoring. This "flexing" at the TCR-peptide-MHC interface to accommodate the peptide antigen explains previously observed incongruences in this well-studied system and has important implications for future therapeutic approaches. Finally, this study expands upon the mechanisms by which molecular plasticity can influence antigen recognition by T cells.
CMOS Capacitive Humidity Sensor ROIC with On-chip PTAT Sensor and Full Digital Output for Low Power Applications (2009)

A low power CMOS integrated capacitance-to-frequency converter with on-chip temperature sensor and fully digital output designed for humidity sensor interface is newly proposed, which is manufactured by using a standard 0.35㎛ 2P/3M CMOS process. This ROIC(Readout IC) consists of on-chip low power PTAT temperature sensing circuit, temperature-to-frequency converter, low power C-F converter, digital compensation circuit, OTP memory, control logic and serial I/O circuits. Capacitance interfacing capability of the circuit is ultra-wide, up to 180pF, which is more higher than previously reported works¹. At a clock speed of 1㎒, the average power dissipation is as low as about 150㎼ with one humidity measurement per one second, which is lower than ever reported works2,3. And the minimum detectable capacitance is as low as about 4.5fF.
Acute Leukemia in Adult Hispanic Americans: Differences in Incidence Rates by Nativity (2014)

CIs, confidence intervals; IRR, incidence rate ratios Hispanics comprise 38% of the California population, and 40% of California Hispanics are born outside the US. 7,8 Therefore, we utilized population-based California Cancer Registry (CCR) data enhanced with nativity data. 9 to assess incidence rates of AL in Hispanic Californians by nativity, with a hypothesis that this would inform the relevance of genetic or environmental factors on the etiology of AL.
MEMS-based reconfigurable RF front-end architecture for future band-free mobile terminals (2007)

A novel reconfigurable RF front-end architecture for future band-free mobile terminals is proposed. A single-path configuration and the use of single-band devices with distributed reconfigurable matching networks have the potential to achieve the optimum RF front-end for the transmission side. As the first step in verifying the proposed architecture, a reconfigurable quad-band power amplifier (PA) module is also presented. The 1W-class PA module using microelectromechanical systems switches and low temperature co-fired ceramic technology achieves the maximum power added efficiency of greater than 44% in the 0.9, 1.5, 2.0, and 2.6-GHz bands.
Scalable Device for Automated Microbial Electroporation in a Digital Microfluidic Platform (2017)

Electrowetting-on-dielectric (EWD) digital microfluidic laboratory-on-a-chip platforms demonstrate excellent performance in automating labor-intensive protocols. When coupled with an on-chip electroporation capability, these systems hold promise for streamlining cumbersome processes such as multiplex automated genome engineering (MAGE). We integrated a single Ti:Au electroporation electrode into an otherwise standard parallel-plate EWD geometry to enable high-efficiency transformation of Escherichia coli with reporter plasmid DNA in a 200 nL droplet. Test devices exhibited robust operation with more than 10 transformation experiments performed per device without cross-contamination or failure. Despite intrinsic electric-field nonuniformity present in the EP/EWD device, the peak on-chip transformation efficiency was measured to be 8.6 ± 1.0 × 10<sup>8</sup> cfu·μg<sup>-1</sup> for an average applied electric field strength of 2.25 ± 0.50 kV·mm<sup>-1</sup>. Cell survival and transformation fractions at this electroporation pulse strength were found to be 1.5 ± 0.3 and 2.3 ± 0.1%, respectively. Our work expands the EWD toolkit to include on-chip microbial electroporation and opens the possibility of scaling advanced genome engineering methods, like MAGE, into the submicroliter regime.
Research on Kernel Functions of SVM for Line-of-sight Identification in Vehicle-to-Vehicle MIMO System (2019)

Generally, propagation channels show significantly different characteristics for line-of-sight (LOS) and non-line-of-sight (NLOS) conditions. Due to their good performance in classification problems, support vector machines (SVM) have been widely used for NLOS identification of propagation channels. In this paper, we investigate the impact of different kernel functions on the accuracy of SVM-based NLOS identification and validate the performance based on measured channel data. We find that a Gaussian kernel reduces the mis-identification rate by a factor 4 compared to a linear kernel, and also outperforms polynomial and sigmoid kernels.
ChemInform Abstract: Cycloaddition Reactions of Carbohydrate Derivatives. Part 3. A New Route to Swainsonine Analogs. (1992)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Evoked potentials reveal neural circuits engaged by human deep brain stimulation (2020)

DBS evoked potentials suggest that the intrinsic dynamics of the STN and GP are highly interlinked and may provide a promising new biomarker for adaptive DBS.
New functional insights into the internal architecture of the laminated anchor spicules of Euplectella aspergillum (2015)

To adapt to a wide range of physically demanding environmental conditions, biological systems have evolved a diverse variety of robust skeletal architectures. One such example, Euplectella aspergillum, is a sediment-dwelling marine sponge that is anchored into the sea floor by a flexible holdfast apparatus consisting of thousands of anchor spicules (long, hair-like glassy fibers). Each spicule is covered with recurved barbs and has an internal architecture consisting of a solid core of silica surrounded by an assembly of coaxial silica cylinders, each of which is separated by a thin organic layer. The thickness of each silica cylinder progressively decreases from the spicule's core to its periphery, which we hypothesize is an adaptation for redistributing internal stresses, thus increasing the overall strength of each spicule. To evaluate this hypothesis, we created a spicule structural mechanics model, in which we fixed the radii of the silica cylinders such that the force transmitted from the surface barbs to the remainder of the skeletal system was maximized. Compared with measurements of these parameters in the native sponge spicules, our modeling results correlate remarkably well, highlighting the beneficial nature of this elastically heterogeneous lamellar design strategy. The structural principles obtained from this study thus provide potential design insights for the fabrication of high-strength beams for load-bearing applications through the modification of their internal architecture, rather than their external geometry.
Effects of medium chain fatty acids as a mitigation or prevention strategy against porcine epidemic diarrhea virus in swine feed (2020)

Feed has been shown to be a vector for viral transmission. Four experiments were conducted to: 1) determine if medium chain fatty acids (MCFA) are effective mitigants when applied to feed both pre- and post-porcine epidemic diarrhea virus (PEDV) inoculation measured by quantitative reverse transcription polymerase chain reaction (qRT-PCR), 2) evaluate varying levels and combinations of MCFA measured by qRT-PCR, and 3) evaluate selected treatments in bioassay to determine infectivity. In exp. 1, treatments were arranged in a 2 × 2 + 1 factorial with main effects of treatment (0.3% commercial formaldehyde [CF] product, Sal CURB [Kemin Industries, Inc.; Des Moines, IA], or 1% MCFA blend (Blend) of 1:1:1 C6:C8:C10 [PMI, Arden Hills, MN]) and timing of application (pre- or post-inoculation with PEDV) plus a positive control (PC; feed inoculated with PEDV and no treatment). All combinations of treatment and timing decreased detectable PEDV compared with the PC (P < 0.05). Pre-inoculation treatment elicited decreased magnitude of PEDV detection (cycle threshold value) compared with post-inoculation (P = 0.009). Magnitude of PEDV detection was decreased for CF compared with Blend (P < 0.0001). In exp. 2, pre-inoculation treatments consisted of: 1) PC, 2) 0.3% CF, 3 to 5) 0.125% to 0.33% C6:0, 6 to 8) 0.125% to 0.33% C8:0, 9 to 11) 0.125% to 0.33% C10:0, and 12 to 15) 0.125% to 0.66% C5:0. Treating feed with 0.33% C8:0 resulted in decreased (P < 0.05) PEDV detection compared with all other treatments. Increasing concentration of each individual MCFA decreased PEDV detectability (P < 0.042). In exp. 3, pre-inoculation treatments consisted of: 1) PC, 2) 0.3% CF, 3 to 7) 0.25% to 1% Blend, 8 to 10) 0.125% to 0.33% C6:0 + C8:0, 11 to 13) 0.125% to 0.33% C6:0 + C10:0, and 14 to 16) 0.125% to 0.33% C8:0 + C10:0. Treating feed with CF, 0.5% Blend, 0.75% Blend, 1% Blend, all levels of C6:0+C8:0, 0.25% C6:0 + 0.25% C10:0, 0.33% C6:0 + 0.33% C10:0, 0.25% C8:0 + 0.25% C10:0, or 0.33% C8:0 + 0.33% C10:0 elicited decreased detection of PEDV compared with PC (P < 0.05). Increasing concentration of each MCFA combination decreased PEDV detectability (linear, P < 0.012). In exp. 4, feed was treated pre-inoculation with: 1) no treatment (PC), 2) 0.3% CF, 3) 0.5% Blend, or 4) 0.3% C8:0 and analyzed via qRT-PCR and bioassay. Adding 0.5% Blend or 0.3% C8:0 resulted in decreased PEDV compared with PC and only PC resulted in a positive bioassay. Therefore, MCFA can decrease detection of PEDV in feed. Further, inclusion of lower levels of MCFA than previously evaluated are effective against PEDV.
Palladium‐Containing Perovskites: Recoverable and Reusable Catalysts for Suzuki Couplings. (2004)

Abstract For Abstract see ChemInform Abstract in Full Text.