gebhart/patrepeval huggingface dataset:
Comparison of the anchoring of nematic liquid crystals on self-assembled monolayers formed from semifluorinated thiols and alkanethiols (1997)

The anchoring of nematic liquid crystals on self-assembled monolayers (SAMs) formed by the chemisorption of semifluorinated thiols or alkanethiols on gold is compared and contrasted. The planar anchoring of 4-n-pentyl-4-cyanobiphenyl (5CB) observed in the past on SAMs formed from alkanethiols is also observed on SAMs formed from semifluorinated thiols. The azimuthal anchoring of 5CB, however, differs on these two types of surfaces: nematic 5CB anchored on SAMs formed from alkanethiols has a grainy appearance due to the formation of domains with sizes 10 mum whereas 5CB forms large domains (100 mum) with diffuse branches emerging from defects of strength 1/2 when anchored on SAMs formed from semifluorinated thiols. Mixed (two-component) SAMs formed from either short and long semifluorinated thiols or short and long alkanethiols cause homeotropic anchoring of 5CB. We discuss these results in light of the known differences in the structure of SAMs formed from alkanethiols and semifluorinated thiols, i.e. the tilt of the chains and conformational freedom (flexibility) of the chains within these SAMs.
Compressive Time-of-Flight 3D Imaging Using Block-Structured Sensing\n Matrices (2017)

Spatially and temporally highly resolved depth information enables numerous\napplications including human-machine interaction in gaming or safety functions\nin the automotive industry. In this paper, we address this issue using\nTime-of-flight (ToF) 3D cameras which are compact devices providing highly\nresolved depth information. Practical restrictions often require to reduce the\namount of data to be read-out and transmitted. Using standard ToF cameras, this\ncan only be achieved by lowering the spatial or temporal resolution. To\novercome such a limitation, we propose a compressive ToF camera design using\nblock-structured sensing matrices that allows to reduce the amount of data\nwhile keeping high spatial and temporal resolution. We propose the use of\nefficient reconstruction algorithms based on l^1-minimization and\nTV-regularization. The reconstruction methods are applied to data captured by a\nreal ToF camera system and evaluated in terms of reconstruction quality and\ncomputational effort. For both, l^1-minimization and TV-regularization, we use\na local as well as a global reconstruction strategy. For all considered\ninstances, global TV-regularization turns out to clearly perform best in terms\nof evaluation metrics including the PSNR.\n
Incidence and risk factors of metachronous colorectal neoplasm after curative resection of colorectal cancer in Korean patients (2014)

Elder age, synchronous adenoma and diabetes mellitus are risk factors for developing metachronous neoplasia. Therefore, careful surveillance colonoscopy are necessary for these patients.
Protecting identity documents by microstructure color differences (2004)

The development of plastic card printers has led to the widespread use of identity documents printed on plastic cards, such as ID cards, driving licenses, and access key cards. This paper presents a new security feature based on a technique for embedding a personalized microstructure into an image. This microstructure takes the form of a pattern embedded into the original photograph as a succession of balanced chromatic shifts. The amplitude of these shifts may be tuned so as to make the pattern fully apparent or just noticeable under normal viewing conditions. Since the chromatic shifts cancel each other out in any macroscopic portion of the image, the global appearance of the protected image remains intact. The embedded microstructure may be adapted to each instance of the protected identity document. For example, it can repeat textual information already present elsewhere on the document, or it can include a code derived from data specific to the document holder. Furthermore, this information may be made fully readable without requiring special revealing means. Such identity documents exhibit an intrinsic resistance against imitation, tampering and substitution.
Robust time delay compensation in a wireless motion control system with double disturbance observers (2015)

Time delay is a common phenomenon which can be varying and unknown in many networked motion control systems. Since time delay negatively affects the stability and tracking performance, it needs to be carefully handled in controller design. Moreover, both external disturbance and sensor noise exist in such systems, which makes the controller design more challenging. In this paper, a double disturbance observer (DDOB) structure is proposed to handle time delay, external disturbance, and measurement noise simultaneously. Design of disturbance observers (DOBs) and baseline controllers are elaborated. An RT-WiFi wireless network is developed for high-speed and real-time control applications. The RT-WiFi network is integrated with a DC motor and its performance is examined. Simulation and experimental results are demonstrated to verify the effectiveness of the proposed algorithm.
Signal transduction initiated by extracellular nucleotides regulates the high affinity ligand recognition of the adhesive receptor CD11b/CD18. (1990)

A variety of monocyte/neutrophil adhesive functions is coordinated by the CD11b/CD18 complex, a leukocyte-restricted member of integrin receptors. Previous studies have shown that the adenine nucleotide ADP produces a transient and high affinity recognition state of CD11b/CD18 for its complementary ligands fibrinogen and factor X. We have now characterized the process of intracellular signalling initiated in monocytes by ADP. Further, we have causally related these events to the qualitative upregulation of CD11b/CD18, as exemplified by its inducible binding of factor X. Micromolar concentrations of ADP or ATP produce dose-dependent increase in monocyte cytosolic free [Ca2+]i through mobilization from intracellular stores coupled with a sustained, EGTA-sensitive, influx of Ca2+ from the external compartment. This Ca2+ response was kinetically and quantitatively heterogeneous when analyzed at the single cell level. Ca2+ channel antagonists nifedipine or verapamil blocked the sustained phase of ADP-induced Ca2+ entry and inhibited 125I-factor X binding to CD11b/CD18 in a dose-dependent manner. Nifedipine-sensitive Ca2+ channels are gated by variations in transmembrane potential in a variety of cells. In monocytes, depolarizing conditions by high external [K+] or by the Na+ ionophore gramicidin D mimicked the stimulatory effect of ADP, inducing increased cytosolic free [Ca2+]i and 125I-factor X binding to CD11b/CD18. In contrast, these responses were both abrogated by hyperpolarization with the K+ ionophore valinomycin. These data suggest that a sustained increase in monocyte cytosolic free [Ca2+]i coupled with variations in transmembrane potential regulate the high affinity receptor function of CD11b/CD18. Although prototypically exemplified for monocyte stimulation with adenine nucleotides, this pathway of intracellular signalling might provide a general mechanism for transient and qualitative functional upregulation of integrin receptors.
Design and Implementation of the UDS Diagnostic System Based on CAN Bus (2020)

Based on the ISO15765 protocol and the electronic control unit (ECU) to complete the design and implementation of host computer software for the fault diagnosis function. The main contents include: This paper first introduces the basic requirements and specifications of CAN bus and ISO15765 protocol, then introduces the specific requirements and definitions of all diagnostic service in the implementation process , Using CANoe software simulation method implements the diagnostic requirements. Finally, it introduces the core process and state transfer process of the software design .Test the software and compare it with the traditional version which is carried out through CANoe software and then analyze the result and draw a conclusion.
First experimental results from IBM/TENN/TULANE/LLNL/LBL undulator beamline at the advanced light source (1995)

The IBM/TENN/TULANE/LLNL/LBL Beamline 8.0 at the advanced light source combining a 5.0 cm, 89 period undulator with a high-throughput, high-resolution spherical grating monochromator, provides a powerful excitation source over a spectral range of 70–1200 eV for surface physics and material science research. The beamline progress and the first experimental results obtained with a fluorescence end station on graphite and titanium oxides are presented here. The dispersive features in K emission spectra of graphite excited near threshold, and found a clear relationship between them and graphite band structure are observed. The monochromator is operated at a resolving power of roughly 2000, while the spectrometer has a resolving power of 400 for these fluorescence experiments.
Theoretical and Experimental Study of Vanadium-Based Fluorophosphate Cathodes for Rechargeable Batteries (2014)

A single-phase crystalline Na3V2O2(PO4)2F material has been prepared by the solvothermal method. Partial ion exchange between Na and Li was then used to form Na3–xLixV2O2(PO4)2F. The two materials were studied as positive cathodes by physical characterization, electrochemical measurements, and simulation. With density functional theory calculations, four stable phases of NaxV2O2(PO4)2F were identified at the Na concentrations of x = 0, 1, 2, 3. The transitions between these phases give rise to three values of the Na chemical potential and three voltage plateaus for Na intercalation. The lower two voltages, corresponding to removal of the first two Na per formula unit, agree well with the corresponding experimental electrochemical measurements. Removal of the third Na, however, is not observed experimentally, because it is outside of the (4.8 V) stability window of the electrolyte. This observation is consistent with our calculations that show that the last Na will only be removed at 5.3 V, owing to the stability of the V–O bonding state and a strong Coulomb attraction between the Na and the anions. Computational modifications of the material were considered to activate the third Na with an oxidation energy in the electrolyte stability window, including swapping the anions from O and F to less-electronegative Cl and Br. The most promising material, Na3V2Cl2(PO4)2F, is found to be stable and a good candidate as a Na cathode because all three Na ions can be reversibly removed without significant reduction in the cell potential or energy density of the material. Finally, we show that Li can partially replace Na and that these Li intercalate into the material with a higher rate owing to a lower diffusion barrier as compared to Na.
Neural Storage: A New Paradigm of Elastic Memory (2021)

Storage and retrieval of data in a computer memory plays a major role in system performance. Traditionally, computer memory organization is static - i.e., they do not change based on the application-specific characteristics in memory access behaviour during system operation. Specifically, the association of a data block with a search pattern (or cues) as well as the granularity of a stored data do not evolve. Such a static nature of computer memory, we observe, not only limits the amount of data we can store in a given physical storage, but it also misses the opportunity for dramatic performance improvement in various applications. On the contrary, human memory is characterized by seemingly infinite plasticity in storing and retrieving data - as well as dynamically creating/updating the associations between data and corresponding cues. In this paper, we introduce Neural Storage (NS), a brain-inspired learning memory paradigm that organizes the memory as a flexible neural memory network. In NS, the network structure, strength of associations, and granularity of the data adjust continuously during system operation, providing unprecedented plasticity and performance benefits. We present the associated storage/retrieval/retention algorithms in NS, which integrate a formalized learning process. Using a full-blown operational model, we demonstrate that NS achieves an order of magnitude improvement in memory access performance for two representative applications when compared to traditional content-based memory.
Effect of uniaxial strain on the site occupancy of hydrogen in vanadium from density-functional calculations (2015)

We investigate the influence of uniaxial strain on the site occupancy of hydrogen in vanadium, using density functional theory. The site occupancy is found to be strongly influenced by the strain state of the lattice. The results provide the conceptual framework for the atomistic description of the observed hysteresis in the to phase transition in bulk, as well as the preferred octahedral occupancy of hydrogen in strained V layers.
<title>Evaluation of MIRAS spaceborne instrument performance: snapshot radiometric accuracy and its improvement by means of pixel averaging</title> (1997)

In the last years aperture synthesis interferometric radiometers have received a special attention by space agencies as a feasible solution to passive monitoring of the Earth at low frequencies (L-band), where classical total power radiometers would require heavy steerable antennas to meet the spatial resolution requirements (10 - 20 Km), from a low polar orbit. While the performance of such instruments is well known in the radioastronomy field, its application to Earth remote sensing is quite new. The study of different array structures, system errors, calibration and inversion methods and instrument global performance requires the implementation of a simulator of a two-dimensional space borne interferometric radiometer. It allows us to analyze not only its snap shot radiometric accuracy, but also its improvement by means of pixel averaging, that is, the averaging of the common pixels recovered in a sequence of consecutive brightness temperature images. The simulations performed use the system parameters of the planned MIRAS (microwave imaging radiometer by aperture synthesis) instrument, a Y-shaped array with 43 antennas per arm spaced 0.89 lambda, currently under study by the European Space Agency.
Drugs Five Years Later (2020)

Abstract Azathioprine is approved by the FDA for use as an adjunct for the prevention of renal homotransplantation rejection. Some recently published papers have reported that this drug has been us...
Transmission Techniques for Relay-Interference Networks (2008)

In this paper we study the relay-interference wireless network, in which relay (helper) nodes are to facilitate competing information flows over a wireless network. We examine this in the context of a deterministic wireless interaction model, which eliminates the channel noise and focuses on the signal interactions. Using this model, we show that almost all the known schemes such as interference suppression, interference alignment and interference separation are necessary for relay-interference networks. In addition, we discover a new interference management technique, which we call interference neutralization, which allows for over-the-air interference removal, without the transmitters having complete access the interfering signals. We show that interference separation, suppression, and neutralization arise in a fundamental manner, since we show complete characterizations for special configurations of the relay-interference network.
SuperCam on the Perseverance Rover for Exploration of Jezero Crater: Remote LIBS, VISIR, Raman, and Time-Resolved Luminescence Spectroscopies Plus Micro-Imaging and Acoustics (2021)

International audience
Development of a PDLLA-based stereolithography resin for making tissue engineering scaffolds (2007)

The use of porous structures as tissue engineering scaffolds imposes high demands on the pore architecture. Stereolithography is a rapid prototyping method based on photo-polymerisation, that can be utilised to make 3D constructs with high spatial control. In this study, biodegradable resins were developed that can find application in stereolithography. Poly(D,L-lactide) (PDLLA) oligomers were synthesised and functionalised with methacrylate end-groups. By mixing the resulting macromers with a diluent, photo-initiator and inhibitor, lowviscosity resins were obtained that were photocrosslinked to yield stiff and strong degradable poly(lactide) networks. Also, porous scaffolds were fabricated on a stereolithography apparatus (SLA) from a nondegradable resin.
The debate between Michael Banton and John Rex: a re-evaluation (2015)

Michael Banton's paper provides fascinating insights into his long-running intellectual disagreements with John Rex, the other major post-war figure in the sociology of ‘race relations’. Published work and personal recollections are supplemented by a series of communications by letter to flesh out the precise nature of these debates. They reveal differing views on the ontological status of ‘race’, race relations and racism, as well as a number of criticisms of Rex's work. He argues that Rex was wrong to put so much faith in the ability of classical sociology to address these concerns, and that there was a disjuncture between theory, methods and substance in his empirical work. There is also a suggestion that Rex played down the significance of racism. The greatest difference between them, however, lay in their divergent views on the role of sociology and the sociologist.
Semiautomated Isochoric Apparatus for p-V-T and Phase Equilibrium Studies (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSemiautomated Isochoric Apparatus for p-V-T and Phase Equilibrium StudiesLaale Yurttas, James C. Holste, Kenneth R. Hall, Bruce E. Gammon, and Kenneth N. MarshCite this: J. Chem. Eng. Data 1994, 39, 3, 418–423Publication Date (Print):July 1, 1994Publication History Published online1 May 2002Published inissue 1 July 1994https://pubs.acs.org/doi/10.1021/je00015a004https://doi.org/10.1021/je00015a004research-articleACS PublicationsRequest reuse permissionsArticle Views145Altmetric-Citations13LEARN 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-Alertsclose Get e-Alerts
2013 British Transplant Society Annual Congress (2013)

Non-invasive Tests to Help Stratify Risk of Acute Rejection in Renal Transplant Recipients.<br/>
Supplementary Figure S4 from Small-Molecule Prodigiosin Restores p53 Tumor Suppressor Activity in Chemoresistant Colorectal Cancer Stem Cells via c-Jun-Mediated ΔNp73 Inhibition and p73 Activation (2023)

&lt;p&gt;Prodigiosin-mediated anti-CRCSC effect involves p53 pathway restoration via p73.&lt;/p&gt;
Loss manipulation capabilities of deadbeat-direct torque and flux control induction machine drives (2014)

This paper investigates the loss manipulation capabilities of deadbeat-direct torque and flux control (DB-DTFC) induction machine drives. For each switching period, a Volt.-sec.-based inverse model provides a range of Volt.-sec. solutions to achieve the desired torque at the end of each switching interval, while stator flux magnitude provides another degree-of-freedom to manipulate machine losses. With a flux-based DB-DTFC loss model, losses can be manipulated each switching period without compromising torque dynamics. For steady-state operation and typical process trajectories, the minimum loss can be achieved with corresponding energy savings. Alternatively, significant losses can be induced rapidly to dissipate kinetic energy in the machine during braking transients. This provides smooth braking torque and decreases deceleration time without requiring additional energy dissipation or storage hardware. DB-DTFC induction machine drives provide an effective and elegant solution for loss manipulation.
Design and synthesis of nanomolar δ-opioid selective nonpeptide mimetic agonists based on peptide leads (2005)

The synthesis of designed non-peptide mimetics began with commercially available 3hydroxylbenzaldehyde 1 as shown in Scheme 1. The free hydroxyl group was protected as a methoxyethoxymethyl ether 2 which was reacted with various Grignard reagents or reduced by sodium boron hydride to form the secondary and primary alcohols 3, respectively. The intermediate 3 was converted into chloride 4 in the presence of triphenylphosphine and tetrachloromethane. The chloride 4 was then reacted with 1benzylpiperazine to form intermediate 5 whose hydroxyl protection were removed with 2N hydrochloric acid to provide the desired products 6 as hydrochloride acid salts. The binding assay results of the synthesized non-peptide mimetics against radio labeled highly selective opioid ligands are listed in the Table 1. As shown, the hydrophobicity of the R group has a dramatic effect on the binding and selectivity of the non-peptide ligand 6 to the receptor. Analogue 6e (SL 3111) with a very hydrophobic para-t-butylphenyl substituent showed the highest binding affinity nM) with over 2000 fold greater selectivity for the receptor than for the receptor. This exceeds the selectivity of the peptide lead for the opioid receptor. Although a further in vitro bioassay on 6e (SL 3111) indicates that its in vitro bioactivity with an nM at MVD and its selectivity are lower than expected. This may be due to the racemic materials examined. Alternatively, the ligand does not have all the proper pharmacophores to interact with the receptor. Nonetheless, SL-3111 is a novel selective non-peptide lead that indeed mimics the peptide ligand. Further modification on this non-peptide lead is currently underway in our laboratory.
Holes generation in glass using large spot femtosecond laser pulses (2018)

We demonstrate high-throughput, symmetrical, holes generation in fused silica glass using a large spot size, femtosecond IR-laser irradiation which modifies the glass properties and yields an enhanced chemical etching rate. The process relies on a balanced interplay between the nonlinear Kerr effect and multiphoton absorption in the glass which translates into symmetrical glass modification and increased etching rate. The use of a large laser spot size makes it possible to process thick glasses at high speeds over a large area. We have demonstrated such fabricated holes with an aspect ratio of 1:10 in a 1 mm thick glass samples.
All‐Arthroscopic Weaver‐Dunn‐Chuinard Procedure With Double‐Button Fixation for Chronic Acromioclavicular Joint Dislocation (2009)

Level IV, therapeutic case series.