gebhart/patrepeval huggingface dataset:
Search for top squarks in events with a Higgs or Z boson using 139 fb$$^{-1}$$ of pp collision data at $$\sqrt{s}=13$$ TeV with the ATLAS detector (2020)

Abstract This paper presents a search for direct top squark pair production in events with missing transverse momentum plus either a pair of jets consistent with Standard Model Higgs boson decay into b -quarks or a same-flavour opposite-sign dilepton pair with an invariant mass consistent with a Z boson. The analysis is performed using the proton–proton collision data 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 collected with the ATLAS detector during the LHC Run-2, 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> . No excess is observed in the data above the Standard Model predictions. The results are interpreted in simplified models featuring direct production of pairs of either the lighter top squark ( $$\tilde{t}_1$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mover> <mml:mi>t</mml:mi> <mml:mo>~</mml:mo> </mml:mover> <mml:mn>1</mml:mn> </mml:msub> </mml:math> ) or the heavier top squark ( $$\tilde{t}_2$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mover> <mml:mi>t</mml:mi> <mml:mo>~</mml:mo> </mml:mover> <mml:mn>2</mml:mn> </mml:msub> </mml:math> ), excluding at 95% confidence level $$\tilde{t}_1$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mover> <mml:mi>t</mml:mi> <mml:mo>~</mml:mo> </mml:mover> <mml:mn>1</mml:mn> </mml:msub> </mml:math> and $$\tilde{t}_2$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mover> <mml:mi>t</mml:mi> <mml:mo>~</mml:mo> </mml:mover> <mml:mn>2</mml:mn> </mml:msub> </mml:math> masses up to about 1220 and 875 GeV, respectively.
Amplificateur de Puissance à 79GHz pour Application Radar Automobile à Courte Portée (2009)

International audience
Atomic resolution imaging and frequency versus distance measurements on NiO(001) using low-temperature scanning force microscopy (2003)

Atomically resolved scanning force microscopy images and force versus distance measurements at low temperatures on a cleaved NiO (001) single crystal are reported. The force-distance data are well modeled with a capacitive force in the distance range of 0.5 to 20 nm. The residual forces at smaller tip-sample distances show a maximum attraction of 2.3 nN and decay within 0.2 nm. They show a steplike behavior associated with an increase in dissipation signal. This steplike behavior can be explained by interaction of more than one atom of the tip or of the surface.
Abstract A245: Imidazo[2,1-b]thiazole and imidazo[1,2-a]pyridine amides as novel inhibitors of the insulin-like growth factor (IGF1R) and members of the epidermal growth factor family of tyrosine kinases (2009)

Abstract The insulin-like growth factor 1 receptor (IGF1R) and its ligands, IGF1 and IGF2 are associated with cell growth and resistance to apoptosis. The ErbB axis, consisting of 4 receptor tyrosine kinases (EGFR, ErbB2, ErbB3, and ErbB4) is a longstanding target of cancer chemotherapy. There is a growing body of literature suggesting that targeting a combination of the IGF and ErbB axes would be more effective than targeting either alone. A screen of Abbott's compound collection revealed a scaffold, the imidazothiazoles, which showed activity against EGFR. A similar scaffold from the literature had previously been reported to have IGF1R activity. Optimization of the imidazothiazoles, and a scaffold hop to imidazopyridines, has provided a series of compounds with amide head groups with kinase inhibitory activity against IGF1R, EGFR, and ErbB2. These compounds also demonstrated inhibition of p-IGF1R and p-EGFR in a human epidermoid carcinoma line (A-431), as well as inhibition of p-ErbB2 in a human gastric cancer cell line (N87). This poster will discuss the synthesis and optimization of the imidazothiazoles and imidazopyridines as multitargeted kinase inhibitors. Citation Information: Mol Cancer Ther 2009;8(12 Suppl):A245.
Low-profile checkerboard electromagnetic band-gap surface (2016)

In this paper, low-profile checkerboard Electromagnetic Band-Gap (EBG) surface maintaining wide bandwidth performance is proposed. The EBG surface is composed of two kinds of unit cells to make destructive interference in bore-sight. To obtain RCS reduction for wideband, 180° phase difference points of unit cells are placed at proper frequencies. The height of the EBG surface is 3.175 mm and the RCS reduction is achieved from 8 GHz to 16 GHz whose the operation bandwidth is 66.7%.
TDM Based Reference Signal Multiplexing for Faster-than-Nyquist Signaling Using OFDM/OQAM (2014)

This paper proposes time division multiplexing (TDM) based reference signal (RS) multiplexing for non-orthogonal multiplexing employing Faster-than-Nyquist (FTN) signaling for orthogonal frequency division multiplexing (OFDM)/offset quadrature amplitude modulation (OQAM). Accurate channel estimation is essential for FTN signaling when using a turbo soft interference canceller (SIC). We propose dividing resource elements (REs) within a physical resource block (PRB) pair into orthogonal and non-orthogonal RE multiplexing regions based on TDM to decrease inter-symbol interference and inter-subcarrier interference to a substantially low level. The RSs for channel estimation are multiplexed in the REs in the orthogonal RE region. Based on link-level simulations, we show that TDM based RS multiplexing achieves accurate channel estimation such that the loss in the required average received signal-to-noise power ratio for satisfying the average block error rate of 10−2 compared to the case with ideal channel estimation is suppressed to within approximately 2 dB.
Quantum Chemical Studies of Li Ion Hopping Mechanism in Polymer Electrolytes (2007)

The potential energy surface for lithium cation hopping between the oxygens of two polyethylene oxide chains was studied at the molecular level using ab initio molecular orbital theory. Various levels of theory were used. A simple model of two dimethyl ether molecules was used to mimic two polyethylene oxide chains. The barrier for Li cation hopping between the two chains was found to increase with distance between the two oxygens.
VALIDITY OF A SIMPLE ESTIMATION FOR INTERNAL FILTRATION/BACKFILTRATION FLOW RATE IN COMMERCIALLY AVAILABLE HIGH FLUX DIALYZERS (2005)

In several types of high flux dialyzers, internal filtration/backfiltration (IF/BF) is induced by local transmembrane pressure, TMP=PB-PD-πP under less ultrafiltration flow rate. Higher IF/BF flow rate enhanced convective transport of the solute in addition to diffusive transport. In previous published papers (ASAIO J, 2000;46:456 and Int J Artif Organs 2003;26:129), we reported the effects of IF/BF on solute removal during an analytical study and the measurement of the internal filtration flow rate (QIF) by Doppler ultrasonography. From this measurement, the longitudinal blood flow rate (QB) profile along the dialyzer was obtained using a probe slider that can move the probe in parallel along the dialyzer. This is a suitable method for a bedside monitoring of the IF/BF flow rate of dialyzers because it is noninvasive to the patient. It is, however, a little bit complicated system because an ultrasonic instrument and a slider in the water bath are required for this system. In this paper, a simple estimation method for the QIF value was introduced based on the commonly available ultrafiltration coefficient (UF) and an apparent transmembrane pressure at the inlet portion of the dialyzer (TMP(0)), QIF = UF x TMP(0)/4, where UF and TMP(0) values were obtained under a typical HD condition. A good correlation of the QIF between the estimated value by the simple estimation method and the observed value by the Doppler ultrasonography was obtained.
Assessment of the generalization of learned image reconstruction and the potential for transfer learning (2018)

This study presents insights into the generalization ability of learned image reconstruction with respect to deviations in the acquisition settings between training and testing. It also provides an outlook for the potential of transfer learning to fine-tune trainings to a particular target application using only a small number of training cases.
The Hyperspectral Imager for the Coastal Ocean (HICO)- design and early results (2010)

The design and early results of the Hyperspectral Imager for the Coastal Ocean (HICO) are presented. The performance requirements imposed on the sensor to measure the low signals and to differentiate the optically complex spectra of the coastal ocean are discussed. It is shown the as-built sensor meets or exceeds the design parameters. Further, environmental products from early retrievals of the HICO imagery are presented.
MmWave use cases and prototyping: A way towards 5G standardization (2015)

In the framework of the forthcoming 5G telecommunication system, the definition of realistic use cases and prototypes strongly connected to them is key in order to demonstrate how well emerging enabling technologies can fulfil the challenges introduced by the 5G Heterogeneous Network (HetNet) architecture. This paper shows how millimeter wave (mmWave) technologies can be properly assessed by selecting real-life use cases and then deriving out of experimental platforms significant system Key Performance Indicator (KPI). Finally, the status of mmWave activities in standards bodies is described, highlighting which bodies are to be addressed for a successful go-to-market of such emerging technology.
Reaction of state-selected ammonia ions with methane (1999)

We have investigated the reaction of ammonia ions with methane molecules (CD4) over the collision energy range of 0.5–10.0 eV and for ammonia ion vibrational states ranging from ν2=1–10. Under these conditions, the two main product channels are NH3D+ and CD3+. The cross section for formation of NH3D+ is enhanced with increasing internal energy at collision energies below 6.0 eV, and independent of internal energy at higher collision energies. The enhancement is greater for forward-scattered products indicating that ammonia-ion vibrational energy enhances reactivity at large impact parameters. The mechanism for formation of CD3+ involves collision-induced dissociation of CD4 (or NH3+) which leads to the formation of a short-lived [NH3CD3]+ ([NH2CD4]+) complex, which then decays to products. This reaction is found not to be vibrationally mode selective, which is consistent with the hypothesis that mode selectivity in reactions of ammonia ions is driven by the Franck–Condon overlap whenever charge transfer is involved.
Intrinsic Fiber Optic Chemical Sensor Based On Two-Stage Fluorescence Coupling (1989)

This paper proposes a new generic technique for fiber optic chemical sensing, discusses experiments which demonstrate the technique, and briefly treats possible extensions and applications. Our results indicate a more than 100-fold increase in the coupling of energy from a chemically sensitive coating to guided modes in the fiber core, when compared with other intrinsic sensor designs. Previous reports of distributed sensors making use of chemically sensitive dyes in optical fiber claddings describe sensors which depend on the direct coupling of light between the cladding and guided modes in the fiber core. This approach, particularly when used for distributed fluorescence sensors, is limited in sensitivity since coupling takes place through the evanescent field &quot;tails&quot; of the fiber&apos;s core-modes, which extend only a short distance into the fiber cladding and do not correspond well with the optical properties of light in the cladding. We describe an approach which can greatly increase the amount of energy coupled from fluorescent sensor molecules in a fiber coating to guided modes in the fiber core. In this approach, fluorescent molecules of a second type are present in the fiber core, absorb the fluorescence emission from the molecules in the sensor coating, and emit their own fluorescence in the core of the fiber. The design of the fiber maximizes the amount of this secondary fluorescence that is captured and subsequently guided by the fiber. The proportionately smaller amount of coating emission which is coupled into the fiber core by evanescent field effects is also converted to secondary fluorescence. Preliminary experiments have demonstrated this &quot;two-stage fluorescence&quot; approach using an oxygen-sensitive dye in a permeable silicone coating placed on the outside of a plastic fluorescent-core fiber.
Subpopulacje limfocytów B we krwi obwodowej u dzieci zdrowych (2013)

B-cells play a key role in the protection against infection, create immune memory and produce specific antibodies. Determination of specific B-cell phenotype with reference to age is important in the classification of immunodeficiency and in assessing response to vaccinations. The aim of this study was to determine by the flow cytometry the percentage and the absolute values of the B-cell subpopulations – in peripheral blood – in healthy children and to compare the obtained values considering the gender and age. The population of B-cells (CD19+) was 17.2% of the total lymphocyte population in children in the age group 3–10 years, 16.2% in the group of 10–15 years, and 11.1% in the 15–19 years age group and did not differ between treatment subgroups. The evaluated values of B-cell subpopulations with immunomodulatory antigens – B-cell receptor (CD5, CD21, CD81), B lymphocytes with bone marrow borne antigens (CD10, CD38), antigens of lymphocyte-T-dependent response (CD27, CD40, CD21+CD40-), activation antigen (CD23) and subpopulations with other antigens showed no differences between the subgroups. Similar results were obtained for the absolute values except for the subpopulation of CD19+CD5+, which was the highest in younger children. The results can be used as a pattern for comparison with the results in patients with impaired immune system. This paper in a broad way describes the distribution of different subpopulations of B-cells in peripheral blood of healthy children older than 3 year.
Malondialdehyde and 4-hydroxynonenal protein adducts in plasma and liver of rats with iron overload. (1990)

In hepatic iron overload, iron-catalyzed lipid peroxidation has been implicated in the mechanisms of hepatocellular injury. Lipid peroxidation may produce reactive aldehydes such as malondialdehyde (MDA) and 4-hydroxynonenal (4-HNE), which may form aldehyde-protein adducts. We investigated whether lipid peroxidation occurred in rats fed a diet containing 3% carbonyl iron for 5-13 wk, and if this resulted in the formation of MDA- and 4-HNE- protein adducts. Chronic iron feeding resulted in hepatic iron overload (greater than 10-fold) and concomitantly induced a 2-fold increase in hepatic lipid peroxidation. Using an antiserum specific for MDA-lysine protein adducts, we demonstrated by immunohistochemistry the presence of aldehyde-protein adducts in the cytosol of periportal hepatocytes, which co-localized with iron. In addition, MDA- and 4-HNE-lysine adducts were found in plasma proteins of animals with iron overload. Only MDA adducts were detected in albumin, while other plasma proteins including a approximately 120-kD protein had both MDA and 4-HNE adducts. In this animal model of hepatic iron overload, injury occurs primarily in periportal hepatocytes, where MDA-lysine protein adducts and excess iron co-localized.
Beryllium Measurement in Commercially Available Wet Wipes (2011)

Abstract Analysis for beryllium by fluorescence is now an established method which is used in many government run laboratories and commercial facilities. This study investigates the use of this technique using commercially available wet wipes. The fluorescence method is widely documented [1,2] and has been approved as a standard test method by the ASTM International and the National Institute for Occupational Safety and Health. The procedure involves dissolution of samples in an aqueous ammonium bifluoride solution and then adding a small aliquot to a basic hydroxybenzoquinoline sulfonate fluorescent dye, (Berylliant™, Inc., Detection Solution Part #CH-2) and measuring the fluorescence. This method is specific to beryllium. This work will explore the use of three different commercial wipes spiked with beryllium as beryllium acetate or as beryllium oxide and subsequent analysis by optical fluorescence. The effect of possible interfering metals such as Fe, Ti, and Pu in the wipe medium is also examined.
Nucleoporin 88 expression in hepatitis B and C virus-related liver diseases (2006)

Based on our immunohistochemical data, HBV and HCV are unlikely to influence the expression of Nup88 in cirrhotic and neoplastic liver tissue, but point to an interaction of HBV with the nuclear pore in chronic hepatitis. The expression of Nup88 in nonneoplastic liver tissue might reflect enhanced metabolic activity of the liver tissue. Our data strongly indicate a dichotomous role for Nup88 in non-neoplastic and neoplastic conditions of the liver.
Positive modulation of α5 GABAAreceptors in preadolescence prevents reduced locomotor response to amphetamine in adult female but not male rats prenatally exposed to lipopolysaccharide (2017)

We previously demonstrated that lipopolysaccharide (LPS) administered intraperitoneally (i.p.) to pregnant Wistar rat dams, at embryonic days 15 and 16 (E15/16), induced a decrease of baseline locomotor activity and diminished reactivity to amphetamine in adult female offspring. In the present study we aimed to assess the duration of LPS-induced maternal immune activation (MIA) and investigate possible changes in levels of main neurotransmitters in fetal brain during MIA. We hypothesized that the observed behavioral changes may be linked with MIA-induced disturbance of prenatal GABAergic system development, especially with α5 GABA<sub>A</sub> receptors (α5GABA<sub>A</sub>Rs), expression of which takes place between E14 and E17. Thereafter, we set to investigate if later potentiation of α5GABA<sub>A</sub>Rs in offspring's preadolescence (from postnatal day 22-28) could prevent the deficit in locomotor reactivity to amphetamine observed in adulthood, at postnatal day P60. The elevation of IL-6 in amniotic fluid 6h after LPS treatment (100μg/kg, i.p.) at E15 was concurrent with a significant increase of GABA and decrease of glutamate concentration in fetal brain. Moreover, repeated administration of MP-III-022, a selective positive allosteric modulator of α5GABA<sub>A</sub>Rs, at a dose (2mg/kg daily, i.p.) derived from a separate pharmacokinetic study, prevented the LPS-induced decrease in locomotor reactivity to amphetamine (0.5mg/kg, i.p.) in adult females. These results were not mirrored in the parallel set of experiments with male offspring from LPS-treated rats. The results suggest that pharmacological potentiation of α5GABA<sub>A</sub>Rs activity in preadolescence may ameliorate at least some of adverse consequences of exposure to MIA in utero.
Identification of overlapping but distinct cAMP and cGMP interaction sites with cyclic nucleotide phosphodiesterase 3A by site-directed mutagenesis and molecular modeling based on crystalline PDE4B (2020)

Cyclic nucleotide phosphodiesterase 3A (PDE3A) hydrolyzes cAMP to AMP, but is competitively inhibited by cGMP due to a low kcat despite a tight Km. Cyclic AMP elevation is known to inhibit all pathways of platelet activation, and thus regulation of PDE3 activity is significant. Although cGMP elevation will inhibit platelet function, the major action of cGMP in platelets is to elevate cAMP by inhibiting PDE3A. To investigate the molecular details of how cGMP, a similar but not identical molecule to cAMP, behaves as an inhibitor of PDE3A, we constructed a molecular model of the catalytic domain of PDE3A based on homology to the recently determined X-ray crystal structure of PDE4B. Based on the excellent fit of this model structure, we mutated nine amino acids in the putative catalytic cleft of PDE3A to alanine using site-directed mutagenesis. Six of the nine mutants (Y751A, H840A, D950A, F972A, Q975A, and F1004A) significantly decreased catalytic efficiency, and had kcat/Km less than 10% of the wild-type PDE3A using cAMP as substrate. Mutants N845A, F972A, and F1004A showed a 3- to 12-fold increase of Km for cAMP. Four mutants (Y751A, H840A, D950A, and F1004A) had a 9- to 200-fold increase of Ki for cGMP in comparison to the wild-type PDE3A. Studies of these mutants and our previous study identified two groups of amino acids: E866 and F1004 contribute commonly to both cAMP and cGMP interactions while N845, E971, and F972 residues are unique for cAMP and the residues Y751, H836, H840, and D950 interact with cGMP. Therefore, our results provide biochemical evidence that cGMP interacts with the active site residues differently from cAMP.
Fair subdivision of multi-robot tasks (2013)

We study the problem of distributing a single global task between a group of heterogeneous robots. We view this problem as a fair division game. In this setting, every robot defines a preference function over parts of the task according to its sensing and motion capabilities. These preferences are described by density functions over the task. With such interpretation, we want to find an allocation of the global task that maximizes the probability of task completion. We first formulate the task distribution problem as a fair subdivision problem and provide a centralized algorithm to compute the allocations for each robot. We provide a complexity analysis and computational results of the algorithm.
Performance comparison between carbon nanotube and copper interconnects for GSI (2005)

The performances of minimum-size copper and carbon nanotube interconnects are compared for various ITRS generations. Results offer important guidance regarding the nature of carbon nanotube technology development needed for improving interconnect performance. Since wave propagation is slow in a single nanotube, nanotube-bundles with larger wave speeds must be used. At the 45nm node (year 2010), the performance enhancement that can be achieved by using nanotube-bundles is negligible, and at the 22nm node (year 2016) it can be as large as 30% and 80% if carbon nanotubes with electron mean free paths of 5/spl mu/m and 10/spl mu/m, respectively, can be fabricated.