gebhart/patrepeval huggingface dataset:
Modal Analysis, Inverse-Design, and Experimental Validation of Bandwidth-Controllable Suspended Patch Antennas Loaded With Cylindrical Anisotropic Impedance Surfaces (2022)

In this article, bandwidth-controllable suspended patch antennas (SPAs) loaded by anisotropic impedance surfaces (AISs) are proposed. A highly efficient yet accurate semianalytical modal expansion method (MEM) is developed for calculating the input impedance and radiation properties of the proposed antenna, which greatly reduces the simulation time and consumed memory compared to a commercial full-wave solver. The MEM is further utilized by coupling it with a genetic algorithm for effectively performing inverse-design, i.e., optimizing AIS-loaded SPAs with different predefined frequency responses. Three proof-of-concept antenna examples are designed, fabricated, and characterized, including an ultrawideband (UWB) antenna, a dual-wideband antenna, and a band-notched UWB antenna. The operating principle is illustrated by investigating the resonant modes of the AIS-loaded SPAs. The measured results of the three antennas exhibit good agreement with theoretical predictions, demonstrating that all three antennas have vertically polarized conical patterns in the E-plane and omnidirectional patterns in the H-plane with a cross polarization of smaller than −15 dB in their respective operational frequency band(s). The good performance demonstrates that the proposed AIS-loaded SPAs are promising candidates for broadband and multiband communications.
Intelligent strain sensing on a smart composite wing using extrinsic fabry-perot interferometric sensors and neural networks (2004)

Strain prediction at various locations on a smart composite wing can provide useful information on its aerodynamic condition. The smart wing consisted of a glass/epoxy composite beam with three extrinsic Fabry-Perot interferometric (EFPI) sensors mounted at three different locations near the wing root. Strain acting on the three sensors at different air speeds and angles-of-attack were experimentally obtained in a closed circuit wind tunnel under normal conditions of operation. A function mapping the angle of attack and air speed to the strains on the three sensors was simulated using feedforward neural networks trained using a backpropagation training algorithm. This mapping provides a method to predict the stall condition by comparing the strain available in real time and the predicted strain by the trained neural network.
Measuring the Effects of Data Parallelism on Neural Network Training (2018)

Recent hardware developments have dramatically increased the scale of data parallelism available for neural network training. Among the simplest ways to harness next-generation hardware is to increase the batch size in standard mini-batch neural network training algorithms. In this work, we aim to experimentally characterize the effects of increasing the batch size on training time, as measured by the number of steps necessary to reach a goal out-of-sample error. We study how this relationship varies with the training algorithm, model, and data set, and find extremely large variation between workloads. Along the way, we show that disagreements in the literature on how batch size affects model quality can largely be explained by differences in metaparameter tuning and compute budgets at different batch sizes. We find no evidence that larger batch sizes degrade out-of-sample performance. Finally, we discuss the implications of our results on efforts to train neural networks much faster in the future. Our experimental data is publicly available as a database of 71,638,836 loss measurements taken over the course of training for 168,160 individual models across 35 workloads.
Solar‐grade boron emitters by BF3 plasma doping and role of the co‐implanted fluorine (2015)

Abstract We investigate the electrical properties and dopant profiles of boron emitters performed by plasma immersion ion implantation from boron trifluoride (BF 3 ) gas precursor, thermally annealed and passivated by silicon oxide/silicon nitride stacks. High thermal budgets are required for doses compatible with screen‐printed metal pastes, to reach very good activation rates. However, if good sheet resistances and saturation current densities may be obtained, we met strong limitations of the implied open‐circuit voltage of the n‐type Czochralski silicon substrates, which is incompatible with high‐efficiency solar cells. Such limitations are not encountered with beamline where pure B + ions are implanted. Efforts on the passivation quality may improve the implied open‐circuit voltage but are not sufficient. We provide experimental comparison between beamline and plasma immersion allowing us to discriminate the causes explaining this observation (implantation technique or ion specie used) and to infer our interpretation: The co‐implantation of fluorine seems to indirectly impact the lifetime of the core substrate after thermal annealing. Copyright © 2015 John Wiley &amp; Sons, Ltd.
Cytoskeleton disruption and apical redistribution of proximal tubule Na(+)-K(+)-ATPase during ischemia (1992)

The polar distribution of Na(+)-K(+)-ATPase to the basolateral membrane of proximal tubule cells is essential for the efficient and vectorial reabsorption of Na+ and may be dependent on the formation of a metabolically stable, detergent-insoluble complex of Na(+)-K(+)-ATPase with the actin membrane cytoskeleton. The present studies utilized immunocytochemical techniques to demonstrate and quantify the apical redistribution of Na(+)-K(+)-ATPase during mild ischemia (15 min) that occurred in proximal (1.3 +/- 0.9 vs. 4.5 +/- 1.1 particles/100 microns surface membrane, P less than 0.01) but not distal tubule cells. Treatment of control apical membranes with 2-(2-methoxyethoxy)ethyl 8-(cis-2-n-octylcyclopropyl)octanoate (A2C), a fluidizing agent, markedly increased membrane fluidity without any effect on Na(+)-K(+)-ATPase activity. In brush-border membrane vesicles isolated after ischemia, however, A2C further increased an already elevated Na(+)-K(+)-ATPase activity. During ischemia, total cellular Na(+)-K(+)-ATPase activity remained unaltered, but the Triton X-100-soluble (noncytoskeleton associated) fraction of Na(+)-K(+)-ATPase increased significantly following 15 and 30 min. There was a corresponding decrease in the Triton X-100-insoluble fraction of Na(+)-K(+)-ATPase, with the ratio of detergent-soluble to -insoluble Na(+)-K(+)-ATPase increasing from 13 +/- 2 to 32 +/- 5% (P less than 0.01) during 30 min of ischemia. Western blot analysis of the Triton X-100-soluble fraction, following 30 min of ischemic injury, revealed the presence of Na(+)-K(+)-ATPase, actin, fodrin, and uvomorulin. However, in a fraction highly enriched for Na(+)-K(+)-ATPase, neither actin, fodrin, nor uvomorulin was detected.(ABSTRACT TRUNCATED AT 250 WORDS)
Algebraic codes for Slepian-Wolf code design (2011)

Practical constructions of lossless distributed source codes (for the Slepian-Wolf problem) have been the subject of much investigation in the past decade. In particular, near-capacity achieving code designs based on LDPC codes have been presented for the case of two binary sources, with a binary-symmetric correlation. However, constructing practical codes for the case of non-binary sources with arbitrary correlation remains by and large open. From a practical perspective it is also interesting to consider coding schemes whose performance remains robust to uncertainties in the joint distribution of the sources. In this work we propose the usage of Reed-Solomon (RS) codes for the asymmetric version of this problem. We show that algebraic soft-decision decoding of RS codes can be used effectively under certain correlation structures. In addition, RS codes offer natural rate adaptivity and performance that remains constant across a family of correlation structures with the same conditional entropy. The performance of RS codes is compared with dedicated and rate adaptive multistage LDPC codes (Varodayan et al. '06), where each LDPC code is used to compress the individual bit planes. Our simulations show that in classical Slepian-Wolf scenario, RS codes outperform both dedicated and rate-adaptive LDPC codes under $q$-ary symmetric correlation, and are better than rate-adaptive LDPC codes in the case of sparse correlation models, where the conditional distribution of the sources has only a few dominant entries. In a feedback scenario, the performance of RS codes is comparable with both designs of LDPC codes. Our simulations also demonstrate that the performance of RS codes in the presence of inaccuracies in the joint distribution of the sources is much better as compared to multistage LDPC codes.
Supplementary Figure 5 from Cabozantinib Eradicates Advanced Murine Prostate Cancer by Activating Antitumor Innate Immunity (2023)

&lt;p&gt;Increased myeloid CD86-expressing APCs following cabozantinib treatment.&lt;/p&gt;
Brake comfort – a review (2009)

Several state of the art papers and even books on brake vibration and/or noise have been presented in the literature. Many of them have analytically and sharply accounted for the impressive amount of research undertaken on this topic. This state of the art review focuses on the still-open questions that appear crucial from the perspective of a leading brake manufacturer. The paper deals with the phenomena of brake vibration and/or noise, the experimental and theoretical methods for studying such phenomena, and the actions that are identified to be necessary to definitely solve the addressed problem. Key topics are the modelling of friction, the modelling of the dynamics of the brake as a non-linear system subjected to deterministic or random (parametric) excitation, the proper modelling of the contact between the disc and the pad, and the experimental validation of the mathematical models.
Pairwise Features for Human Action Recognition (2010)

Existing action recognition approaches mainly rely on the discriminative power of individual local descriptors extracted from spatio-temporal interest points (STIP), while the geometric relationships among the local features are ignored. This paper presents new features, called pairwise features (PWF), which encode both the appearance and the spatio-temporal relations of the local features for action recognition. First STIPs are extracted, then PWFs are constructed by grouping pairs of STIPs which are both close in space and close in time. We propose a combination of two codebooks for video representation. Experiments on two standard human action datasets: the KTH dataset and the Weizmann dataset show that the proposed approach outperforms most existing methods.
True2F: Backdoor-Resistant Authentication Tokens (2019)

We present True2F, a system for second-factor authentication that provides the benefits of conventional authentication tokens in the face of phishing and software compromise, while also providing strong protection against token faults and backdoors. To do so, we develop new lightweight two-party protocols for generating cryptographic keys and ECDSA signatures, and we implement new privacy defenses to prevent cross-origin token-fingerprinting attacks. To facilitate real-world deployment, our system is backwards-compatible with today's U2F-enabled web services and runs on commodity hardware tokens after a firmware modification. A True2F-protected authentication takes just 57ms to complete on the token, compared with 23ms for unprotected U2F.
Evaluation of anti‐Helicobacter pylori IgG2 antibody for the diagnosis of Helicobacter pylori infection in western and Chinese populations (2004)

These data demonstrate that the Helirad Alert enzyme-linked immunoassay could provide a reliable method for screening H. pylori infection in both western and Chinese populations.
Drug-eluting embolic microspheres: State-of-the-art and emerging clinical applications (2021)

TACE has been performed for nearly four decades by injecting chemotherapy drugs into the arterial supply of tumors while simultaneously cutting off their blood supply, trying to starve and kill cancer cells, with varying degrees of success. The practice has evolved over the decades but has yet to fulfill the promise of truly personalized therapies envisioned through rational selection of drugs and real-time multi-parametric image guidance to target tumor clonality or heterogeneity. Recent technologic and pharmacologic developments have opened the door for potentially groundbreaking advances in how TACE with DEE microspheres is performed with the goal of achieving advancements that benefit patients.
Computational discovery of personal traits from social multimedia (2013)

Hundreds of millions of people leave digital footprints, including textual posts and photos, on public on social media and social networking sites. Here we present our work on using these digital footprints-social multimedia content-to derive four types of basic personal traits for individuals. Moreover, we show how these basic traits can be used in combinations to help assess composite traits in two cases: trust modeling and resilience modeling. We share our preliminary results and discuss future research directions.
Tumorigenicity of the cyc- variant of the S49 murine lymphoma deficient in the Gs-alpha subunit of adenylate cyclase. (1988)

S49 cyc- lymphoma cells contain a mutation resulting in loss of a functional guanine nucleotide regulatory protein rendering their adenylate cyclase refractory to most stimuli. S49 wild-type and cyc- clones were used in the present study to investigate the possible association of altered cAMP metabolism with tumorigenicity and metastatic potential. The S49 clones were implanted i.v., i.p., and intracerebrally in both athymic nude mice and syngeneic, immunocompetent BALB/c mice. Both S49 clones gave rise to tumors when inoculated into athymic mice, and no differences were observed in the tumorigenicity or metastatic potential of S49 wild-type and cyc- cells. Implantation of S49 clones in syngeneic BALB/c mice gave rise to few tumors except when administered intracerebrally, where wild-type cells were more tumorigenic than cyc- cells. This raises the possibility of differences in immunogenicity between the S49 clones. Analysis of cell lines derived from tumors grown in athymic mice showed that they retained the phenotype of the S49 clones used for inoculations. The results indicate that, despite differences in adenylate cyclase responsiveness, S49 wild-type and cyc- cells are both highly tumorigenic and metastatic.
Bevacizumab (Avastin) and Argon Laser to Treat Neovascularization in Corneal Transplant Surgery (2008)

The combination of argon laser coagulation and bevacizumab injections may be a promising tool in treatment of neovascularization in association with corneal transplant surgery. Antivascular endothelial growth factor substances may increasingly play a role in anterior segment surgery in the future.
Factors Affecting Near-End Crosstalk (NEXT) in High Speed Serial Links (2018)

In this paper, factors affecting near-end crosstalk (NEXT) in high speed serial links are discussed. When designing stripline transmission lines, care should be taken to tune parameters such as dielectric thickness of core and prepreg, intra-pair spacing and pair-to-pair spacing to minimize crosstalk. A less optimal design would result in higher crosstalk and may force designers to increase layer count in printed circuit boards (PCB) to reduce crosstalk. In this paper, by comparing eye-height differences between high speed channels with and without NEXT, the sensitivity of different transmission line parameters to NEXT is analyzed.
Enzymatic Synthesis of Unlabeled and β-32P-labeled β-l-2′,3′-Dideoxyadenosine-5′-triphosphate as a Potent Inhibitor of Adenylyl Cyclases and Its Use as Reversible Binding Ligand (1999)

beta-L-2',3'-Dideoxyadenosine-5'-triphosphate (beta-L-2', 3'-dd-5'-ATP) was prepared enzymatically from the corresponding monophosphate by the use of adenylate kinase, creatine phosphate, and creatine kinase in a single step. The beta-(32)P-labeled analog was prepared similarly, but in a two step reaction. beta-L-2', 3'-dd-5'-ATP inhibited adenylyl cyclase from rat brain competitively with respect to substrate (5'-ATP.Mn(2+)) and exhibited an IC(50) approximately 24 nM. The labeled ligand was used in the development of a reversible binding assay for adenylyl cyclases. Binding of beta-L-2',3'-dd-[beta-(32)P]5'-ATP was saturable with increasing concentrations of ligand and increased in proportion to membrane protein, and was enhanced by Mn(2+) to a greater extent than by Mg(2+). Binding was displaced with adenine nucleotides known to be either competitive or noncompetitive inhibitors but not by agents known not to act on the cyclase, or by 3-isobutyl-1-methylxanthine, creatine phosphate, or creatine kinase. Binding was rapid, with a half-time for the on-rate <1.8 min and for the off-rate <0.8 min. The potency and mechanism of the inhibition of this ligand and the pattern of agents that displace binding suggest an interaction with adenylyl cyclase per se and to a configuration of the enzyme consistent with an interaction at the catalytic active site. The data suggest that this is a pretransition state inhibitor and contrasts with the equipotent 2',5'-dd-3'ATP, a post-transition state noncompetitive inhibitor.
Subject Index Vol. 108, 1995 (1995)

epithelial cells 260 -hyperreactivity 189 -hyperresponsiveness 60,292 -response 274 Allergic asthma 89 -cross-reactions 196 -enteropathy 127
Ultrafast Photodynamics of Exciplex Formation and Photoinduced Electron Transfer in Porphyrin−Fullerene Dyads Linked at Close Proximity (2003)

The ultrafast photodynamics of porphyrin−fullerene dyads in which the distance between the porphyrin and C60 moieties is varied systematically at close proximity has been examined using fluorescence up-conversion and pump−probe transient absorption techniques with time resolutions of ca. 100 fs. The porphyrin−fullerene dyads examined are MP-D-C60 (M = Zn and 2H) in which the C60 moiety is directly connected with the porphyrin ring at the meso position and MP-O-C60, MP-M-C60, and MP-P-C60 in which the C60 moiety is linked with porphyrin moieties through the benzene ring at the ortho, meta, and para positions, respectively. The charge transfer (CT) bands are observed for MP-D-C60 and MP-O-C60, whereas no CT band is seen for MP-M-C60 and MP-P-C60. Time-resolved absorption spectral measurements indicate that the photoexcitation of ZnP-D-C60 in benzonitrile (PhCN) results in formation of the exciplex, which decays to the ground state without forming the charge-separated state. The strong interaction between the ZnP and the C60 moieties due to the short linkage distance in ZnP-D-C60 as indicated by the observation of the strongest CT band at the ground state results in formation of the exciplex. The energy of the exciplex is lower than that of the charge-separated state even in a polar solvent such as PhCN. In contrast, the photoexcitation of the dyad with longer linkage, ZnP-O-C60, in PhCN results in formation of the charge-separated state via the exciplex formation, which is higher in energy than the charge-separated state. The photodynamics of exciplex formation of porphyrin−C60-linked dyads with a short linkage is characterized by the extremely fast formation rate from the singlet excited states of porphyrins involving both the second and first excited states due to the interaction between the porphyrin and C60 moieties, which are placed at close proximity. In the case of MP-D-C60, the exciplex formation from the first singlet excited state of MP occurs at an ultrafast time scale with a time constant of 160 fs and that from the second singlet excited state occurs faster with a time constant less than 50 fs.
Mapping a Domain Specific Language to a (2004)

domain specific language (DSL) enables designers to rapidly specify and implement system for a particular domain, yielding designs that are easy to understand, reason about, re-use and maintain. However, there is usually a significant overhead in the required infrastructure to map such a DSL on to a programmable logic device. In this paper, we present a mapping of an existing DSL for the networking domain on to a platform FPGA by embedding the DSL into an existing language infrastructure. In particular, we will show that, using few basic concepts, we are able to achieve a SUCCKSS~~ mapping of the DSL on to a platform FPGA and create a re-usable structure that also makes it easy to extend the DSL. Finally we will present some results of mapping ihe DSL on to a platform FPGA and comment on the resulting overhead.
Determination of the Binding of Ligands Containing the N-2,4-dinitrophenyl Group to Bivalent Monoclonal Rat Anti-DNP Antibody Using Affinity Capillary Electrophoresis (1995)

Affinity capillary electrophoresis has been used to determine the two dissociation constants of the complex between anti-DNP rat monoclonal IgG2b antibody and charged ligands that contained a N-dinitrophenyl group. Singly and multiply charged ligands were used to establish the influence of the charge on the mobility of the complex between Ig and its ligand(s). Zwitterionic buffer additives lessened adsorption of protein to the walls of the capillary. A form of analysis of the binding data is derived that is more useful than Scatchard analysis for certain multivalent systems where cooperativity of binding is in question, but where it is also possible to make plausible assumptions about electrophoretic mobilities of protein and protein-ligand complexes. The uncertainties and assumptions of this analysis are contrasted with those of Scatchard analysis. For this antibody and these monovalent ligands, the dissociation of the ligands from the antibody occurred noncooperatively. The charge on IgG2b at pH 8.3 is estimated to be -8.0 +/- 0.2; this value is obtained by analysis of the electrophoretic mobilities of complexes IgG2bL2, where the ligands L are structurally similar but have different charges (the charges on the ligands were also determined by CE).
Supramolecular Tetrahedra of Phosphines and Coinage Metals (2012)

Schatzkisten: Die Münzmetalle CuI, AgI und AuI bilden mit einem starren dreifach-symmetrischen Phosphanliganden tetraedrische supramolekulare Cluster. Es sind die ersten supramolekularen Cluster, die über eine gesamte Gruppe des Periodensystems gebildet werden. Cu+ grün, Ag+ hellblau, Au+ olivgrün, I− rot, P lila. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.