gebhart/patrepeval huggingface dataset:
Motion Tracking Glove for Human-Machine Interaction: Grasp & Release (2010)

A common problem seen among the lower extremity paralyzed individuals and the elderly with subsequently reduced movement abilities is that they must rely on others to do a simple task such as getting a glass of water from across the room. As a result of their physical limitations, they lose their independency and more so become burden for the others. Data Glove Controlled Dynamic Robotic Arm can virtually restore their movement abilities without them having to move from their place at all. Data Glove Controlled Dynamic Robotic Arm is composed of two major sophisticated systems that include the wearable Data Glove Dynamic Controller and the Wirelessly Moveable Robot Arm with built-in visual feedback system. In this project, a Data Glove has been designed with two flexor sensors, signal conditioning circuit, 3-axis accelerometer and 1-axis gyroscope IMU and Arduino Duemillanove ATmega328 microcontroller. In addition, a simulated stick figure virtual model of the Robot arm unit has been developed in Arduino-Processing IDE interface. For the implementation of the Data Glove controller, the flex sensors has been mounted on the index finger and thumb of the data glove. These sensors are variable resistors that outputs decreased resistance value when bent. Connecting these sensors through a signal conditioning circuit, two analog voltage signals are extracted that range between 0V-5V. Thus, when the user bends a finger, a corresponding analog voltage is generated. Feeding these analog inputs to the microcontroller ADC subunit, digital representation of the signals can be obtained. Based on the digital value corresponding to specific analog voltage outputs from the finger sensors, the microcontroller can be programmed to control the speed and planar rotational position of the servo motor linking the gripping fingers of the robot.
Studying the RNA silencing pathway with the p19 protein (2013)

The origins of the RNA silencing pathway are in defense against invading viruses and in response, viruses have evolved counter-measures to interfere with the host pathway. The p19 protein is expressed by tombusviruses as a suppressor of RNA silencing and functions to sequester small RNA duplexes, thereby preventing induction of the pathway. p19 exhibits size-specific and sequence-independent binding of its small RNA ligands, binding with high affinity to duplexes 20-22 nucleotides long. p19's binding specificity and its ability to sequester small RNAs has made it a unique protein-based tool for probing the molecular mechanisms of the highly complex RNA silencing pathway in a variety of systems. Furthermore, protein engineering of this 'molecular caliper' promises novel applications in biotechnology and medicine where small RNA molecules are of remarkable interest given their potent gene regulatory abilities.
ChemInform Abstract: Novel Syntheses of Heterocycles with N‐(1‐Haloalkyl)azinium Halides. Part 3. Preparation of 2‐Aryl‐1‐arylimino‐2,3‐dihydro‐1H‐isoindoles. (1992)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Interaction of carbon monoxide with Fe(001) (1989)

New insight into the bonding of carbon monoxide with transition-metal-surfaces is provided by spin-polarized photoemission studies of CO on Fe(001). The interaction of the molecular 5\ensuremath{\sigma} levels with the substrate d bands is found to be very weak for both tilted and vertical CO species. The former shows clear evidence for a \ensuremath{\pi}-d band interaction with discrete spin-polarized features in the occupied D band; the latter shows only small changes. Inverse photoemission studies (non-spin-polarized) indicate that the unoccupied 2\ensuremath{\pi} level is closer to the Fermi level for the tilted CO species.
A 1024-element linear CCD photo sensor with unique photodiode structure (1980)

The development of a novel 1024-element linear CCD sensor is reported. The device incorporates a unique photodiode structure which includes a p-n junction diode for photo sensing and a surface MOS diode for charge storing. Only two power supplies are required to drive this device. The following good results are obtained with this device: 1.0-lx . s saturation exposure, 0.5-V saturation output, ±2.5-percent signal nonuniformity, and a dark-current saturation time of 5 s at room temperature. The device is expected to find broad application in the facsimile reader field.
En marge des récits de la résurrection dans l'évangile de Jean : le verbe voir (1983)

Le chapitre 20 de l'Évangile de Jean constitue un témoignage particulièrement important pour la résurrection de Jésus, et le concept de « voir », exprimé à partir de plusieurs verbes grecs, y tient une place particulière. Une étude de la structure du chapitre laisse déjà apparaître le rôle éminent de ce verbe pour exprimer la perception nouvelle qu'ont Marie-Madeleine, Pierre et l'autre disciple, de la personne du Ressuscité. L'originalité de cette perception est confirmée par une présentation de nombreux passages de l'Ancien Testament et des Targums où cette « vision » est en même temps une « connaissance ». La saisie du Ressuscité est au-delà de la vision sensorielle pour atteindre une « vue » et une « connaissance » du Christ en gloire. La façon d'opérer de Jean révèle chez lui non seulement une connaissance des textes bibliques, mais aussi de la tradition targumique.
Silicon resonant-cavity-enhanced photodetector arrays for optical interconnects (2003)

High bandwidth short distance communications standards are being developed based on parallel optical interconnect fiber arrays to meet the needs of increasing data rates of inter-chip communication in modern computer architecture. To ensure that this standard becomes an attractive option for computer systems, low cost components must be implemented on both the transmitting and receiving end of the fibers. To meet this low cost requirement silicon based receiver circuits are the most viable option, however, manufacturing high speed, high efficiency silicon photodetectors presents a technical challenge. Resonant cavity enhanced (RCE) Si photodetectors have been shown to provide the required bandwidth-efficiency product and we have recently developed a method to reproduce them through commercially available fabrication techniques. In this work, commercially reproducible silicon wafers with a 90% reflectance buried distributed Bragg reflector (DBR) are used to create Si-RCE photodetector arrays for optical interconnects. The Si-RCE photodetectors have 40% quantum efficiency at 860 nm, a FWHM of 25 ps, and a 3dB bandwidth in excess of 10 GHz. We also demonstrate Si-RCE 12×1 photodetector arrays that have been fabricated and packaged with silicon based amplifiers to demonstrate the feasibility of a low cost monolithic silicon photoreceiver array.
Efficient penetration depth approximation using active learning (2013)

article Share on Efficient penetration depth approximation using active learning Authors: Jia Pan University of North Carolina at Chapel Hill University of North Carolina at Chapel HillView Profile , Xinyu Zhang University of North Carolina at Chapel Hill University of North Carolina at Chapel HillView Profile , Dinesh Manocha University of North Carolina at Chapel Hill University of North Carolina at Chapel HillView Profile Authors Info & Claims ACM Transactions on GraphicsVolume 32Issue 6November 2013 Article No.: 191pp 1–12https://doi.org/10.1145/2508363.2508385Published:01 November 2013Publication History 6citation110DownloadsMetricsTotal Citations6Total Downloads110Last 12 Months32Last 6 weeks5 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access
Monolithic GaAs Circuit Elements for Integrated Optics* (1976)

Realizing the ultimate potential of fiber optical communications technology for the rapid processing and transmission of information requires development of integrated optical circuits (IOC's). Reliable cost-effective techniques for the fabrication of transmitters and receivers containing lasers, waveguides, modulators, switches, couplers, and photo-detectors must be developed. The most promising emerging technology for IOC's is the formation of optical microcircuitry in the III-V semiconductor materials system (GaAs and its ternary alloys with Aℓ, In, etc.). A program for the development of a GaAs IOC transmitter such as shown in Figure 1 is being carried out. This IOC transmitter is to consist of a monolithic surface laser whose output is coupled into patterned channel waveguides. Modulation and switching of the radiation occur in the waveguide circuit and are controlled separately. These structures are to be fabricated monolithically on a single semiconductor chip with each device amenable to integrated, low-cost manufacture. The waveguide outputs of the IOC transmitter will be coupled to single mode optical fibers which form a transmission cable.
New Compounds. Some Coumarin Derivatives (1952)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew Compounds. Some Coumarin DerivativesRichard BaltzlyCite this: J. Am. Chem. Soc. 1952, 74, 10, 2692Publication Date (Print):May 1, 1952Publication History Published online10 September 2002Published inissue 1 May 1952https://pubs.acs.org/doi/10.1021/ja01130a600https://doi.org/10.1021/ja01130a600research-articleACS PublicationsRequest reuse permissionsArticle Views219Altmetric-Citations1LEARN 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
Personalized Online Learning with Pseudo-Ground Truth (2020)

Personalized online machine learning allows a very accurate modelling of individual behavior and demands. In particular, a system that dynamically adapts during runtime can initiate a continuous collaboration with its user where both alternately adjust to each other to maximize the system's utility. However, in application scenarios based on supervised learning it is often unclear how to obtain the required ground truth for such dynamic systems. In this paper, we focus on applications where a real-time classification of sequential data is crucial. Concretely, we propose to adapt an online personalized model solely based on pseudo-ground-truth information which is provided by another machine learning model. This model has the advantage to classify sequences in retrospective with a small delay and thus is able to achieve a higher performance than real-time systems. In particular, it is a pre-trained offline model, which means that no ground-truth information is necessary during runtime. We apply the proposal on the task of online action classification, for which the benefits of personalization have been recently emphasized.
Computing with Neural Synchrony (2012)

Neurons communicate primarily with spikes, but most theories of neural computation are based on firing rates. Yet, many experimental observations suggest that the temporal coordination of spikes plays a role in sensory processing. Among potential spike-based codes, synchrony appears as a good candidate because neural firing and plasticity are sensitive to fine input correlations. However, it is unclear what role synchrony may play in neural computation, and what functional advantage it may provide. With a theoretical approach, I show that the computational interest of neural synchrony appears when neurons have heterogeneous properties. In this context, the relationship between stimuli and neural synchrony is captured by the concept of synchrony receptive field, the set of stimuli which induce synchronous responses in a group of neurons. In a heterogeneous neural population, it appears that synchrony patterns represent structure or sensory invariants in stimuli, which can then be detected by postsynaptic neurons. The required neural circuitry can spontaneously emerge with spike-timing-dependent plasticity. Using examples in different sensory modalities, I show that this allows simple neural circuits to extract relevant information from realistic sensory stimuli, for example to identify a fluctuating odor in the presence of distractors. This theory of synchrony-based computation shows that relative spike timing may indeed have computational relevance, and suggests new types of neural network models for sensory processing with appealing computational properties.
The role of CRF2 receptors in corticotropin-releasing factor-and urocortin-induced anorexia (1998)

The experiments presented in this study were designed to assess corticotropin-releasing factor (CRF) receptor subtype mediation of CRF- and urocortin (UCN)-induced decrease in food intake. Male Sprague-Dawley rats were treated with antisense and sense oligonucleotides (ON) to CRF2 receptor mRNAs for 36 h and then received an intracerebroventricular (i.c.v.) injection of CRF, UCN (3 micrograms) or saline. Antisense treatment significantly attenuated CRF- and UCN-induced suppression in food intake and HPA activation. Administration of CRF1 receptor antagonist did not affect the decrease in food intake or activation of the HPA axis induced by i.c.v. infusion of 3 micrograms CRF. The data suggest that down-regulation of CRF2 receptors selectively attenuates CRF- and UCN-induced anorexia and hypothalamo-pituitary-adrenocortical activation in rats.
Noninvasive Imaging of Myocardial Reperfusion Injury Using Leukocyte-Targeted Contrast Echocardiography (2002)

MCE with leukocyte-targeted microbubbles can temporally assess the severity and extent of postischemic myocardial inflammation and could be used to evaluate new treatment strategies designed to limit inflammation in acute coronary syndromes.
Chain Flips in Polyethylene Crystallites and Fibers Characterized by Dipolar<sup>13</sup>C NMR (1999)

The occurrence and rate of 180° chain-flip motions in the crystalline regions of two polyethylenes were studied by 13C NMR. In high-density polyethylene (HDPE) and in ultradrawn ultrahigh molecular weight polyethylene (UHMWPE) fibers, the changes in the 13C−13C dipolar couplings brought about by the reorientations of the 13C−13C internuclear vectors in the crystallites were observed. In the HDPE sample, which was labeled with 4% of 13C−13C pairs, the rotational motion was observed directly via two-dimensional exchange spectroscopy, stimulated-echo decays, and 1D line shape changes monitoring the 13C−13C dipolar coupling. The data show that the jumps occur between two sites, with a rotation angle of 180° and with a jump rate of ∼10/s at ambient temperature. The correlation function of the motion was found to be slightly nonexponential, with a stretched-exponential β parameter of 0.8 ± 0.1. The data yield an activation energy of 93 ± 10 kJ/mol for the 180° chain flips. In the fibers, the narrowing of natural-abundance 13C−13C dipolar satellites is a clear NMR signature of the chain motion, indicating a jump rate of 150/s at 360 K, which is 20 times slower than in the unoriented HDPE. The correlation time dependence of the 1H T1ρ relaxation time, which probes the modulation of H−H dipolar couplings in the crystallites, was determined directly. Relations between the chain flip motion, the dynamic-mechanical α-relaxation, creep, and drawability are discussed.
Superimposed Training for Estimating of Doubly-Selective OFDM Channels (2007)

This paper addresses a time-domain superimposed training scheme for estimating time and frequency-selective (doubly-selective) fading channels in orthogonal frequency division multiplexing (OFDM) systems. We first develop a linear least square channel estimator, and meanwhile derive the optimal superimposed symbols with respect to the channel estimates' mean square error. Next, a low-rank approximated channel estimator is developed by using the singular value decomposition (SVD). Simulation demonstrates our design.
Raster scan selective laser melting of the surface layer of a tool steel powder bed (2005)

Square areas, 15 mm × 15 mm in size, have been melted in the surface of powder beds made from H13 tool steel, using a raster-scanning CO 2 laser focused to a beam diameter of 0.6 mm. Laser powers from approximately 50 to 150 W and scan speeds from 0.5 to 300 mm/s have been used, at two scan spacings, 0.15 mm and 0.45 mm. The appearances of the layers in the different conditions, dense or porous, have been observed by low-magnification scanning electron microscopy. The masses of the layers have been measured and simulations have been carried out to predict the masses. The variation of mass with scan speed, at a constant laser power, has been found to be much less than might be expected from a constant absorptivity of laser energy into the bed. The simulations suggest that absorptivities range from 0.25 to approximately 1.0 and that, during any one scan, heating of the bed by previous scans must be considered in order even partially to explain the observations. The work is relevant to attempts to build metal parts without supports, by selective laser melting.
Gender and sex hormones in multiple sclerosis pathology and therapy (2009)

Several lines of evidence indicate that gender affects the susceptibility and course of multiple sclerosis (MS) with a higher disease prevalence and overall better prognosis in women than men. This sex dimorphism may be explained by sex chromosome effects and effects of sex steroid hormones on the immune system, blood brain barrier or parenchymal central nervous system (CNS) cells. The well known improvement in disease during late pregnancy has also been linked to hormonal changes and has stimulated recent clinical studies to determine the efficacy of and tolerance to sex steroid therapeutic approaches. Both clinical and experimental studies indicate that sex steroid supplementation may be beneficial for MS. This could be related to anti-inflammatory actions on the immune system or CNS and to direct neuroprotective properties. Here, clinical and experimental data are reviewed with respect to the effects of sex hormones or gender in the pathology or therapy of MS or its rodent disease models. The different cellular targets as well as some molecular mechanisms likely involved are discussed.
Simultaneous magnitude and phase equalization using digital filters (1978)

This paper presents a general method for designing digital filters in the frequency domain. The method is based on a Laurent expansion of the filter transfer function, <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">H (z)</tex> , about the orgin. A special case of the method, developed in this paper, allows the coefficients of the polynomials containing the poles and zeros of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">H (z)</tex> to be determined by solving triangular linear equations in the Fourier coefficients of the prescribed magnitude and phase characteristics. Either finite-duration impulse-response (FIR) or infinite-duration impulse-response (IIR) filters can be designed by this method.
Experimental Study of Submicrometer and Ultrafine Particle Penetration and Pressure Drop for High Efficiency Filters (1990)

The fractional penetration of submicrometer particles through five high-efficiency glass fiber filters, one composite fiber filter, and two membrane filters was measured for particles of 0.004–0.42-μm diameter at filter face velocities ranging from 0.5 to 20 cm/s. The glass fiber filters all had approximately the same thickness and weight per unit area, and were rated 93% to 99.999% efficient using the conventional 0.3-μm dioctyl phthalate (DOP) test. The challenge aerosols were electrically classified monodisperse DOP in the diameter range of 0.032–0.42 μm, and polydisperse silver condensation aerosols having diameters of ∼ 0.004–0.01 μm. Aerosol penetration through these media was found to be generally consistent with current theory for collection by diffusion and interception over the particle size and velocity range studied. Using a filter figure of merit calculated for penetration by 0.1- and 0.3-μm particles to facilitate comparison, all of the filters except one tetrafluoroethylene membrane filter (which was slightly better) had about the same performance.
Independent Component Analysis for Magnetic Resonance Image Analysis (2008)

Independent component analysis (ICA) has recently received considerable interest in applications of magnetic resonance (MR) image analysis. However, unlike its applications to functional magnetic resonance imaging (fMRI) where the number of data samples is greater than the number of signal sources to be separated, a dilemma encountered in MR image analysis is that the number of MR images is usually less than the number of signal sources to be blindly separated. As a result, at least two or more brain tissue substances are forced into a single independent component (IC) in which none of these brain tissue substances can be discriminated from another. In addition, since the ICA is generally initialized by random initial conditions, the final generated ICs are different. In order to resolve this issue, this paper presents an approach which implements the over-complete ICA in conjunction with spatial domain-based classification so as to achieve better classification in each of ICA-demixed ICs. In order to demonstrate the proposed over-complete ICA, (OC-ICA) experiments are conducted for performance analysis and evaluation. Results show that the OC-ICA implemented with classification can be very effective, provided the training samples are judiciously selected.
Investigation of blood supply of bronchogenic carcinoma deriving from pulmonary artery (1996)

Microfil perfusion technique was used to investigate the blood supply of bronchogenic carcinoma deriving from pulmonary artery on 20 fresh specimens of lung cancer, including 11 squamous carcinoma, 6 adenocarcinoma, 1 alveolar cell carcinoma and 2 undifferentiated carcinoma cases. The results showed that the appearance and quantity of pulmonary blood supply of bronchogenic carcinoma depended on and changed with the site, activity, growth mode as well as the local condition of tumor nodules; pulmonary artery supplied blood to the periphery of the tumor and its innermost part as well; vessels from pulmonary artery in tumor nodules were generally less in number than those in the surrounding normal lung tissues around. The results suggested that the tumor blood supply from pulmonary artery should be evaluated comprehensively and dynamically; during interventional chemotherapy via pulmonary artery, patients should be selected carefully and the catheter for infusion placed in suitable position so as to gain the best therapeutic effect.