gebhart/patrepeval huggingface dataset:
Stepwise 3D-spatio-temporal magnesium cationic niche: Nanocomposite scaffold mediated microenvironment for modulating intramembranous ossification (2020)

The fate of cells and subsequent bone regeneration is highly correlated with temporospatial coordination of chemical, biological, or physical cues within a local tissue microenvironment. Deeper understanding of how mammalian cells react to local tissue microenvironment is paramount important when designing next generation of biomaterials for tissue engineering. This study aims to investigate that the regulation of magnesium cationic (Mg<sup>2+</sup>) tissue microenvironment is able to convince early-stage bone regeneration and its mechanism undergoes intramembranous ossification. It was discovered that moderate Mg<sup>2+</sup> content niche (~4.11 mM) led to superior bone regeneration, while Mg<sup>2+</sup>-free and strong Mg<sup>2+</sup> content (~16.44 mM) discouraged cell adhesion, proliferation and osteogenic differentiation, thereby bone formation was rarely found. When magnesium ions diffused into free Mg zone from concentrated zone in late time point, new bone formation on free Mg zone became significant through intramembranous ossification. This study successfully demonstrates that magnesium cationic microenvironment serves as an effective biochemical cue and is able to modulate the process of bony tissue regeneration. The knowledge of how a Mg<sup>2+</sup> cationic microenvironment intertwines with cells and subsequent bone formation gained from this study may provide a new insight to develop the next generation of tissue-repairing biomaterials.
Towards Flexible Inference in Sequential Decision Problems via Bidirectional Transformers (2022)

Randomly masking and predicting word tokens has been a successful approach in pre-training language models for a variety of downstream tasks. In this work, we observe that the same idea also applies naturally to sequential decision making, where many well-studied tasks like behavior cloning, offline RL, inverse dynamics, and waypoint conditioning correspond to different sequence maskings over a sequence of states, actions, and returns. We introduce the FlexiBiT framework, which provides a unified way to specify models which can be trained on many different sequential decision making tasks. We show that a single FlexiBiT model is simultaneously capable of carrying out many tasks with performance similar to or better than specialized models. Additionally, we show that performance can be further improved by fine-tuning our general model on specific tasks of interest.
Stretched Sensing Strategies for IEPE (2021)

The integrated electronics piezoelectric (IEPE) standard is a common interfacing strategy for industrial accelerometers that are used for vibration and acoustic measurements. The IEPE interface is an untapped resource with opportunities for expanded sensing, including measurements with frequency content down to dc such as temperature or pressure. This article proposes a new IEPE-compatible transducer, built around an embedded acquisition device, which supports a wide range of sensing elements. The proposed system stretches the range of applications for the IEPE interface. In addition, an inexpensive IEPE-compatible microphone is presented, with detailed modeling and experimental verification. A discussion of a condition monitoring system and strategy highlights the benefits of the proposed hardware.
All-Optical Processing for Pulse Position Coded Header in Packet Switched Optical Networks Using Vertical Cavity Semiconductor Gates (2007)

In this paper, we demonstrate all-optical header extraction and seed-pulse extraction for routing and synchronization of optical packets with pulse-position-coded headers. Our approach exploits self-induced effects in a passive, low-power, polarization-independent, compact vertical cavity semiconductor gate (VCSG). The VCSG operation is based on saturable absorption in semiconductor multiple quantum wells placed within an asymmetric Fabry-Perot cavity. Experiments were performed for both amplitude-modulated and differential-phase-shift-keying-modulated payload data. The payload repetition rate was 12.5 Gbit/s. The packet-bit rate was not limited by the gate recovery time. The operation of the VCSG was also investigated numerically.
An ultra-low-power CMOS voltage-controlled ring oscillator for passive RFID tags (2014)

An ultra-low-power CMOS voltage-controlled ring oscillator (VCRO) for passive ultra-high-frequency (UHF) radio-frequency identification (RFID) tags is presented. The gates of the complementary CMOS transistors in pseudo-differential (PD) delay cells are biased through quasi-floating gate (QFG) technique. The boosted gate-drive voltage enables operation of the differential delay cells with supply voltages smaller than the minimum required overdrive voltage of the two stacked transistors and accordingly facilitates the oscillation at ultra-Iow-power regime. QFG biasing technique also offers an additional control knob to tune the output frequency of the ring oscillator. The proposed two-stage PD-VCRO is designed and laid-out in a standard 0.13-μm CMOS technology. A voltage level converter is also presented to interface the output of the proposed VCRO with the succeeding circuitry. The entire VCRO core occupies an area of 25 μm×20 μm For a supply voltage of as low as 140 mV, an output frequency of 4 MHz is achieved at 3.6 nW power consumption. Although the intended application for the proposed VCRO is passive RFID tags, the architecture can be used in other ultra-low-power applications.
Direct Observation of Ni Nanoparticle Growth in Carbon-Supported Nickel under Carbon Dioxide Hydrogenation Atmosphere (2023)

Understanding nanoparticle growth is crucial to increase the lifetime of supported metal catalysts. In this study, we employ <i>in situ</i> gas-phase transmission electron microscopy to visualize the movement and growth of ensembles of tens of nickel nanoparticles supported on carbon for CO<sub>2</sub> hydrogenation at atmospheric pressure (H<sub>2</sub>:CO<sub>2</sub> = 4:1) and relevant temperature (450 °C) in real time. We observe two modes of particle movement with an order of magnitude difference in velocity: fast, intermittent movement (<i>v</i><sub>max</sub> = 0.7 nm s<sup>-1</sup>) and slow, gradual movement (<i>v</i><sub>average</sub> = 0.05 nm s<sup>-1</sup>). We visualize the two distinct particle growth mechanisms: diffusion and coalescence, and Ostwald ripening. The diffusion and coalescence mechanism dominates at small interparticle distances, whereas Ostwald ripening is driven by differences in particle size. Strikingly, we demonstrate an interplay between the two mechanisms, where first coalescence takes place, followed by fast Ostwald ripening due to the increased difference in particle size. Our direct visualization of the complex nanoparticle growth mechanisms highlights the relevance of studying nanoparticle growth in supported nanoparticle ensembles under reaction conditions and contributes to the fundamental understanding of the stability in supported metal catalysts.
Improving the balance of carrier mobilities of host–guest solid-state light-emitting electrochemical cells (2011)

We report efficient host-guest solid-state light-emitting electrochemical cells (LECs) utilizing a cationic terfluorene derivative as the host and a red-emitting cationic transition metal complex as the guest. Carrier trapping induced by the energy offset in the lowest unoccupied molecular orbital (LUMO) levels between the host and the guest impedes electron transport in the host-guest films and thus improves the balance of carrier mobilities of the host films intrinsically exhibiting electron preferred transporting characteristics. Photoluminescence measurements show efficient energy transfer in this host-guest system and thus ensure predominant guest emission at low guest concentrations, rendering significantly reduced self-quenching of guest molecules. EL measurements show that the peak EQE (power efficiency) of the host-guest LECs reaches 3.62% (7.36 lm W(-1)), which approaches the upper limit that one would expect from the photoluminescence quantum yield of the emissive layer (∼0.2) and an optical out-coupling efficiency of ∼20% and consequently indicates superior balance of carrier mobilities in such a host-guest emissive layer. These results are among the highest reported for red-emitting LECs and thus confirm that in addition to reducing self-quenching of guest molecules, the strategy of utilizing a carrier transporting host doped with a proper carrier trapping guest would improve balance of carrier mobilities in the host-guest emissive layer, offering an effective approach for optimizing device efficiencies of LECs.
Guide d’onde intégré au substrat creux à barreau diélectrique (2019)

International audience
Infrared Photodissociation of Methanol Dimers - Correction (1984)

ADVERTISEMENT RETURN TO ISSUEPREVArticleInfrared Photodissociation of Methanol Dimers - CorrectionMark Hoffbauer, Clayton Glese, and W GentryCite this: J. Phys. Chem. 1984, 88, 13, 2926Publication Date (Print):June 1, 1984Publication History Published online2 July 2002Published inissue 1 June 1984https://pubs.acs.org/doi/10.1021/j150657a601https://doi.org/10.1021/j150657a601research-articleACS PublicationsRequest reuse permissionsArticle Views10Altmetric-Citations-LEARN 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 options Get e-Alerts
Evidence that high mannose glycopeptides are able to functionally interact with recombinant tumor necrosis factor and recombinant interleukin 1. (1990)

Both recombinant tumor necrosis factor (rTNF) and recombinant interleukin 1 (rIL-1) are able to mediate vascular collapse and death in a previously described murine model, using galactosamine to enhance the toxicity of these cytokines. Unexpectedly, both acid-treated tumor necrosis factor (TNF) and a site-specifically mutagenized form of interleukin 1 (IL-1) (His-30----Arg-30), which fails to bind to the IL-1 receptor, retain full in vivo toxicity in this model of TNF- and IL-1-mediated shock. Previous studies have shown that rTNF and rIL-1 exhibit two functionally distinct binding regions. Both cytokines bind to their respective cell surface receptors and they also express lectin like binding specificity (Muchmore and Decker, J. Biol. Chem., 261: 13404-13407, 1986; Muchmore and Decker, J. Immunol., 138: 2541-2546, 1987) for defined oligosaccharides. The specificity of these two types of interactions is quite different. Cell surface receptors for IL-1 and TNF demonstrate essentially no cross-reactivity, whereas, in the case of carbohydrate binding, competition studies reveal an almost identical carbohydrate specificity for the structure Man5(6)GlcNAc2-Asn. Man5(6)GlcNAc2-Asn binding is either unaffected or actually enhanced by either acid treatment of rTNF or mutation at His-30 for rIL-1. Both deoxymannojirimycin and swainsonine, inhibitors of glycoprotein processing, raise intracellular levels of Man5-9GlcNAc2 and enhance the in vitro biological activity of both rTNF and rIL-1. Conversely, castanosperimine, a glucosidase I inhibitor which blocks the synthesis of mature high mannose structures, inhibits the biological activity of IL-1. These observations support the hypothesis that some effects of IL-1 and TNF may involve interaction with high mannose-substituted glycoproteins.
Effect of Moisture Hysteresis on the Resilient Modulus of Lime-Treated Expansive Clay (2017)

Abstract Several studies have asserted that seasonal moisture variation of unsaturated subgrade has a significant impact on its resilient modulus and, consequently, on the pavement performance and longevity. In regard to unsaturated lime-treated expansive subgrade, little research has addressed the influence of moisture variation on resilient modulus (MR). In this context, this study aims at evaluating the effect of the drying and wetting cycle on the resilient behavior of lime-treated expansive clay at optimum lime conditions. Initially, the effects of lime content and curing period on the MR of lime-treated expansive clay were investigated to evaluate the optimum lime content. This involved conducting a series of repeated load tests under different lime contents and curing periods. In addition, a complementary series of tests were conducted to evaluate the unconfined compression strength along the same drying and wetting paths. Test data indicated that lime treatment resulted in a 370 % increase in the MR after 28 days curing. On the other hand, the effect of the wetting and drying cycle, depicted as the relationship between MR and suction (or water content), showed a hysteresis phenomenon. Further examination of the MR along the drying path indicated a positive contribution of suction to the resilient behavior of lime-treated samples up to a specific suction value (&amp;gt;20 MPa), after which this contribution is considered negligible. Hysteresis phenomenon was also observed for unconfined compression strength because of wetting and drying; however, with a different trend. The discrepancy between hysteresis trends were attributed to differences in loading characteristics.
Adjustable 6-0 polypropylene flanged technique for scleral fixation, part 2: repositioning of subluxated IOLs (2020)

The adjustable 6-0 polypropylene flanged technique for IOL repositioning and scleral fixation was a relatively quick and simple method for management of subluxated IOLs. Complete coverage of the flange by conjunctiva and Tenon layer must be confirmed at the end of surgery.
Liquid-Crystal-Based Visible-Light Integrated Optical Phased Arrays (2019)

Liquid-crystal-based integrated optical phased arrays are proposed and experimentally demonstrated for the first time as a method for low-power and compact visible-light beam steering. Beam steering of $10.5^{\circ}$ within $\pm 3.5$ V at a 632.8 nm wavelength is shown. © 2019 The Author(s)
The bipedicled anterior septal flap (2011)

The BAS flap represents a novel septal mucosal flap based on two well-defined arterial inputs. This flap is capable of providing reliable vascularized coverage of the posterior frontal table and the frontal beak following frontal drillout.
Determination of developmental and ripening stages of whole tomato fruit using portable infrared spectroscopy and Chemometrics (2019)

The non-destructive spectroscopic approach may therefore be especially useful for investigating in vivo biochemical changes occurring in fruit epidermis related to grades of tomato during development and ripening, for autonomous food production/supply chain applications.
A Soft Robotic Wearable Wrist Device for Kinesthetic Haptic Feedback (2018)

Advances in soft robotics provide a unique approach for delivering haptic feedback to a user by a soft wearable device. Such devices can apply forces directly on the human joints, while still maintaining the safety and flexibility necessary for use in close proximity to the human body. To take advantage of these properties, we present a new haptic wrist device using pressure-driven soft actuators called reverse pneumatic artificial muscles (rPAMs) mounted on four sides of the wrist. These actuators are originally pre-strained and release compressive stress under pressure, applying a safe torque around the wrist joints while being compact and portable, representing the first soft haptic device capable of real-time feedback. To demonstrate the functional utility of this device, we created a virtual path-following task, wherein the user employs the motion of their wrist to control their embodied agent. We used the haptic wrist device to assist the user in following the path and study their performance with and without haptic feedback in multiple scenarios. Our results quantify the effect of wearable soft robotic haptic feedback on user performance. Specifically, we observed that our haptic feedback system improved the performance of users following complicated paths in a statistically significant manner, but did not show improvement for simple linear paths. Based on our findings, we anticipate broader applications of wearable soft robotic haptic devices toward intuitive user interactions with robots, computers, and other users.
Hepatitis B Virus Dna in Peripheral–Blood Mononuclear Cells in Chronic Hepatitis B After Hbsag Clearance (1992)

In this study, peripheral-blood mononuclear cells from patients with chronic hepatitis B and spontaneous or therapy-induced disappearance of HBsAg were examined for HBV DNA. Samples were evaluated by in situ hybridization and polymerase chain reaction both before and after clearance of HBsAg. By in situ hybridization, positive signals were observed in 2 of 13 samples collected after HBsAg loss, in 8 of 15 samples before HBsAg loss and in 0 of 4 control patients without serological markers of active or prior HBV infection. When polymerase chain reaction analyses were performed, HBV DNA was detected in 5 of 12 HBsAg-negative samples and 10 of 15 HBsAg-positive samples from the study group. Testing of mononuclear cells after disappearance of HBsAg revealed that two of eight patients were HBV DNA positive by in situ hybridization and by polymerase chain reaction, whereas two additional patients were positive by polymerase chain reaction alone. Mononuclear cell-associated HBV DNA was detected between 2 and 9 mo after the disappearance of circulating HBsAg by in situ hybridization and as long as 4 yr later by polymerase chain reaction. These data indicate that patients who have undergone HBsAg seroconversion may nonetheless harbor HBV DNA in their peripheral-blood mononuclear cells for prolonged periods.
Zinc Supplementation Reverses Alcohol-Induced Steatosis in Mice Through Reactivating Hepatocyte Nuclear Factor-4α and Peroxisome Proliferator-Activated Receptor-α† (2009)

Zinc supplementation reverses alcoholic steatosis, and reactivation of HNF-4alpha and PPAR-alpha by increasing zinc availability and inhibiting oxidative stress are potential mechanisms underlying these beneficial effects of zinc on hepatic lipid homeostasis.
A wireless sensor network For structural monitoring (2004)

Structural monitoring---the collection and analysis of structural response to ambient or forced excitation--is an important application of networked embedded sensing with significant commercial potential. The first generation of sensor networks for structural monitoring are likely to be data acquisition systems that collect data at a single node for centralized processing. In this paper, we discuss the design and evaluation of a wireless sensor network system (called Wisden for structural data acquisition. Wisden incorporates two novel mechanisms, reliable data transport using a hybrid of end-to-end and hop-by-hop recovery, and low-overhead data time-stamping that does not require global clock synchronization. We also study the applicability of wavelet-based compression techniques to overcome the bandwidth limitations imposed by low-power wireless radios. We describe our implementation of these mechanisms on the Mica-2 motes and evaluate the performance of our implementation. We also report experiences from deploying Wisden on a large structure.
Highly Manufacturable Single Metal Gate Process Using Ultra-Thin Metal Inserted Poly-Si Stack (UT-MIPS) (2006)

The authors have successfully developed a mass production friendly single metal gate process utilizing an ultra-thin metal inserted poly-Si stack (UT-MIPS) structure. First, the inserted metal gate thickness effects on device performances are carefully examined, and then the other parameters are optimized to give the best performance. As a results, low and symmetrical short channel Vth (0.44/-0.48 V for n/pMOS) and excellent drive currents (620/230 muA/mum for n/pMOS at Ioff =20pA/mum and Vdd=1.2 V) are obtained without using any mobility enhancement strain technology. The estimated operation voltage for 10 years lifetime of optimized UT-MIPS devices (1.25 V for nMOS PBTI and 1.5 V pMOS NBTI) are well beyond the 1.2 V, showing the good reliability characteristics of UT-MIPS devices as well
„Pleinair erfunden …” adalékok Csontváry plein air-tanulmányaihoz (1897–1903) (2015)

There is still much to be explored about the exact circumstances of the creation of Csontváry’s pictures and the painter’s working method. Research has either approached the oeuvre from the life path wrought with mythical elements, or wished to embed it in the context of 19 th century painting tradition. From these angles, however, the consistently built visual logic of Csontváry’s pictures, their details governed by the inherent laws of the genre of painting are often overlooked. The most adequate method of exploring Csontváry’s creative practice appears to be a thorough examination of the relation between the inspiring sight and the picture painted of it. I based this study on Csontváry’s landscapes painted between 1897 and 1905, first of all those painted in Trogir, Castellammare and Taormina. In the knowledge of these localities it can be established that the painter accurately followed the topographic sight and the conditions of light. At the same time, the comparison of the location and the painting has also revealed that the painter had pairs of pictures in mind in his intention to capture a sight systematically. Taking up a vantage point mostly in northsouth and one in east-west orientation, he created “panorama pictures” built of several elements. His paintings are similar to the 360° panoramas in photography. But while a rotating camera can take an infinite number of photos, the painter assembled the picture from two “shots”. Conspicuously, the pairs of pictures depict different times of day: instead of momentary impressions and moods, Csontváry captured the path of the transmission of light and thereby the passing of time, an interval of time in the pairs of pictures. In his later compositions he was to apply these different light conditions in a single picture, framing as it were the daily path of the planet on the horizon. This practice is related to one of Csontváry’s key technical terms, the “Sun Path”. By capturing the changing of light in one picture Csontváry wished to “perfect” the 19 th century plein air technique. His “Sun Path” painting derives from a specific view of nature and the world, which was in polar opposition to the positivism of naturalism and the sensualism of impressionism. Proof of it is the pairs of pictures. They summarize all Csontváry’s observations of time and space, and their translation into the practice of painting. The views conveyed by Csontváry’s paintings were often borrowed from contemporaneous picture postcards. Not only greeting cards but e.g. the rich moving picture and photo material of the programs of the Urania Hungarian Scientific Theatre inspired him. He treated the pictorial themes as visual tropes or conventions, but in the creative process he only used their fixed, symbolic form such as a typical cutting. When a theme was actually to be realized, he thought it indispensable to be on the site in person, to make sketches and paint on the spot. He did so to make the contents he found important in the symbol visible by his painting.