gebhart/patrepeval huggingface dataset:
Spiking Neural Network-Based Radar Gesture Recognition System Using Raw ADC Data (2022)

&lt;p&gt;One of the main challenges in developing embedded radar-based gesture recognition systems is the requirement of energy efficiency. To facilitate this, we present an embedded gesture recognition system using a 60 GHz frequency modulated continuous wave radar using spiking neural networks (SNNs) applied directly to raw ADC data. The SNNs are sparse in time and space, and event-driven which makes them energy-efficient. In contrast to the previous state-of-the-art methods, the proposed system is only based on the raw ADC data of the target thus avoiding the overhead of performing the slow-time and fast-time Fourier transforms (FFTs). Furthermore, the pre-processing slow-time FFT is mimicked in the proposed SNN architecture, where the proposed model processing speed of 12 ms advances the state-of-the-art by a factor of 17.7. The experimental results demonstrate that despite the simplification the proposed implementation achieves recognition accuracy of 98.1 %, which is comparable to the conventional approaches.&lt;/p&gt;
Binding of cholecystokinin to high affinity receptors on isolated rat pancreatic acini. (1980)

The binding of cholecystokinin (CCK) to its receptors on isolated rat pancreatic acini was investigated employing high specific activity, radioiodinated CCK (125I-BH-CCK), prepared by the conjugation of 125I-Bolton-Hunter reagent (125I-BH) to CCK. Binding was specific, time-dependent, reversible, and linearly related to the acinar protein concentration. After incubation for 30 min at 37 degrees C, the 125I-BH-CCK both in the incubation medium and bound to acini remained intact, as judged by gel filtration and trichloroacetic acid precipitation studies. Scatchard analysis was compatible with two classes of binding sites on acini: a very high affinity site (Kd, 64 pM) and a lower affinity site (Kd, 21 nM). 125I-BH-CCK binding to acini was competitively inhibited by CCK and four of its analogues in proportion to their biological potencies but not by unrelated hormones. Stimulation of amylase secretion by CCK and inhibition of 125I-BH-CCK binding by the same analogues carried out under identical conditions revealed a correlation (r = 0.99) between binding potency and amylase secretion. Stimulation of amylase secretion by CCK closely paralleled the occupancy of the high affinity CCK binding sites. It is concluded that the high affinity CCK binding sites most likely are the receptors mediating the stimulation of amylase secretion by CCK.
Detect irregularly shaped spatio-temporal clusters for decision support (2011)

Many real-world applications call for the use of detecting unusual clusters (abnormal phenomena or significant change) from spatio-temporal data for decision support, e.g., in disease surveillance systems and crime monitoring systems. More accurate detection can offer stronger decision support to enable more effective early warning and efficient resource allocation. Many spatial/spatio-temporal clustering approaches have been designed to detect significantly unusual clusters for decision support. In this paper, we focus on more accurately detecting irregularly shaped unusual clusters for point processes and propose a novel approach named EvoGridStatistic. The original problem is mathematically converted to an optimization problem and solved by estimation of distribution algorithm (EDA), which is a powerful global optimization tool. We also propose a prospective spatio-temporal cluster detection approach for surveillance purposes, named EvoGridStatistic-Pro. Experiments verify the effectiveness and efficiency of EvoGridStatistic-Pro over previous approaches. The scalability of our approach is also significantly better than previous ones, which enables EvoGridStatistic-Pro to apply to very large data sets in real-world application systems.
Improvement of back-EMF self-sensing for induction machines when using deadbeat-direct torque and flux control (DB-DTFC) (2016)

Back-EMF self-sensing is commonly used in induction machine (IM) drive systems for its maintenance cost and safety considerations. In recent years, deadbeat-direct torque and flux control (DB-DTFC) has been shown to be a highly effective method for induction machine control. It has advantages such as the fastest possible torque dynamics, dynamically loss manipulation capability independent of torque dynamics, and parameter insensitivity. This paper evaluates the synergy between back-EMF self-sensing technology and DB-DTFC for IM drive systems. In this paper, an observer-based closed-loop back-EMF tracking self-sensing control in an IM DB-DTFC drive system is presented. It includes a back-EMF state filter, back-EMF tracking observer, and cascaded motion observer. Back-EMF harmonic decoupling is explored to improve the low speed performance. The bandpass filter method (BPF) for back-EMF self-sensing is also presented. Finally, the closed loop system dynamic stiffness at very low speeds, with and without the BPF method, is experimentally evaluated.
System Level Comparison of Relay and RF Repeater Based Technologies in WiMAX Systems (2009)

Relay and RF repeater technologies are considered as an effective means to improve the system throughput and coverage performance of cellular OFDMA systems. In this paper, we provide a comprehensive system level comparison of relay and RF repeater based systems utilizing multiple antenna techniques. For relay-based systems we consider a novel relay mode selection procedure that allows intelligent interference avoidance within the same cell. The results show that for both downlink (DL) and uplink (UL) transmission the relay-based system can offer both average throughput and coverage enhancements, while the repeater-based system is capable of coverage extension only. The geographical areas that are most suitable for relay or RF repeater modes are also calculated through system level analysis.
Synthetic Analogues of Glycosylphosphatidylinositol-Anchored Proteins and Their Behavior in Supported Lipid Bilayers (2007)

Positioned at the C-terminus of many eukaryotic proteins, the glycosylphosphatidylinositol (GPI) anchor is a posttranslational modification that anchors the modified proteins in the outer leaflet of the plasma membrane. GPI-anchored proteins play vital roles in signal transduction, the vertebrate immune response, and the pathobiology of trypanosomal parasites. While many GPI-anchored proteins have been characterized, the biological functions of the GPI anchor have yet to be elucidated at a molecular level. We synthesized a series of GPI-protein analogues bearing modified anchor structures that were designed to dissect the contribution of various glycan components to the GPI-protein's membrane behavior. These anchor analogues were similar in length to native GPI anchors and included mimics of the native structure's three domains. A combination of expressed protein ligation and native chemical ligation was used to attach these analogues to the green fluorescent protein (GFP). These modified GFPs were incorporated in supported lipid bilayers, and their mobilities were analyzed using fluorescence correlation spectroscopy. The data from these experiments suggest that the GPI anchor is more than a simple membrane-anchoring device; it also may prevent transient interactions between the attached protein and the underlying lipid bilayer, thereby permitting rapid diffusion in the bilayer. The ability to generate chemically defined analogues of GPI-anchored proteins is an important step toward elucidating the molecular functions of this interesting post-translational modification.
2D Object Abstraction: The Automatic Generation of Hierarchical (1997)

This thesis presents an exploratory framework for automatically generating hierarchical object representations specialized for geometric tasks. The approach consists of two subprocesses: the first extracts geometric information from the input object, and the second generates a specialized representation based on this information. The first subprocess produces a multi-resolution representation that encapsulates the salient geometric features of an object, as well as its topological decomposition into parts. The representation is generated is built. Its main components are a Cell-Based Spatial Representation (CSR) that provides spatial filtering at the desired feature resolution, and an Axial Shape Graph (ASG) that captures local shape information as well as global information about the overall geometric structure of the object. The CSR and ASG components are calculated at multiple resolutions and linked together to form the G-Rep hierarchy. In the second step, the Axial Shape Graph is decomposed into a tree representing the overall shape structure of the object as a hierarchy of subcomponents. Using the Axial Shape Graph, the task of shape decomposition is reduced to a graph partitioning problem whose solution results in a well-balanced part hierarchy. The second subprocess constructs a hierarchy of task-specific representations utilizing the geometric information provided by the G-Rep. The entire representation generation framework is driven by metrics that quantify the desirable characteristics of representations for the particular task. We show that this structure can be utilized to generate representations specialized for the task of Collision Detection in 2D environments.
Oxytocin Use During Active Labor (2013)

Log in or Register Subscribe to journalSubscribe Get new issue alertsGet alerts Enter your Email address: Wolters Kluwer Health may email you for journal alerts and information, but is committed to maintaining your privacy and will not share your personal information without your express consent. For more information, please refer to our Privacy Policy. Subscribe to eTOC Secondary Logo Journal Logo All Articles Images Videos Podcasts Blogs Advanced Search Toggle navigation Subscribe Register Login Articles & Issues Current IssuePrevious Issues Collections Obstetric Airway ManagementMaternal EmbolismRegional Anesthesia for Cesarean SectionGeneral Anesthesia for Cesarean SectionAnalgesia for LaborObstetric HemorrhagePre-Eclampsia/EclampsiaPharmacologyTraumaInfection and SepsisMaternal ObesityMaternl Morbidity and MortalityNeonatal Morbidity and MortalityObstetric ComplicationsAnesthetic ComplicationsNon-Obstetric Maternal DiseaseCritical CareDrug Abuse in PregnancyEthicsSystems Based Practice For Authors Information for AuthorsLanguage Editing Services Journal Info About the JournalEditorial BoardAdvertisingOpen AccessSubscription ServicesReprintsRights and Permissions All Articles Images Videos Podcasts Blogs Advanced Search
Modulation of Shank3 PDZ Domain Ligand‐Binding Affinity by Dimerization (2010)

A two-pronged approach using fluorescence-based probes and chemically controlled dimerization was successfully implemented to study the functional effects of Shank3 PDZ domain ligand binding in vitro. Overall, Shank3 PDZ-domain dimerization induces an eight- to 30-fold enhancement of PDZ domain binding affinity for the fluorescent probe and the native nonfluorescent GKAP ligand.
Activation Sequence Modification During Cardiac Resynchronization by Manipulation of Left Ventricular Epicardial Pacing Stimulus Strength (2007)

Increasing LV SS reduces QRS duration and conduction time from LV to RV. Recognition of significant QRS morphology change is likely clinically important during LV threshold programming to avoid unintended VA change.
Protection of nude rats against Toxoplasma infection by excreted-secreted antigen-specific helper T cells (1990)

In the present work we demonstrate the implication of excreted-secreted antigens in eliciting the protective cell-mediated immunity developed by rats toward Toxoplasma gondii. We first showed that 10(4) specific T cells from T. gondii-infected rats conferred to nude rats the ability to resist an infection by the highly virulent RH strain of T. gondii. In a second series of experiments, the role of excreted-secreted antigens in this protection was demonstrated. After the adoptive transfer to nude rats of various doses (10(3), 10(4), 10(5)) of excreted-secreted antigen-specific helper T cells (propagated in vitro during one month), significant protection toward T. gondii was induced. Moreover, these cells were responsible for a specific antibody response in nude rats, which are normally unable to develop any specific humoral response. The specificity of these antibodies was directed toward different molecules with molecular masses of 104, 97, 57, 39, 30, 21, and 18 kilodaltons; some of these have been previously characterized as major excreted-secreted antigens.
Cloning of Tilapia Type I and III Deiodinasesa (1998)

sponsorship: Van Der Geyten, S, Catholic Univ Louvain, Lab Comparative Endocrinology, Naamsestr 61, B-3000 Leuven, Belgium
Evolution of storage management: Transforming raw data into information (2008)

Exponential growth in storage requirements and an increasing number of heterogeneous devices and application policies are making enterprise storage management a nightmare for administrators. Back-of-the-envelope calculations, rules of thumb, and manual correlation of individual device data are too error prone for the day-to-day administrative tasks of resource provisioning, problem determination, performance management, and impact analysis. Storage management tools have evolved over the past several years from standardizing the data reported by storage subsystems to providing intelligent planners. In this paper, we describe that evolution in the context of the IBM TotalStorage® Productivity Center (TPC)—a suite of tools to assist administrators in the day-to-day tasks of monitoring, configuring, provisioning, managing change, analyzing configuration, managing performance, and determining problems. We describe our ongoing research to develop ways to simplify and automate these tasks by applying advanced analytics on the performance statistics and raw configuration and event data collected by TPC using the popular Storage Management Initiative-Specification (SMI-S). In addition, we provide details of SMART (storage management analytics and reasoning technology) as a library that provides a collection of data-aggregation functions and optimization algorithms.
Multimedia vectorization of floating‐point MIN/MAX reductions (2006)

Abstract Finding the minimum or maximum value in an array forms an important step in a variety of applications. This paper discusses vectorization schemes that take advantage of the streaming‐SIMD‐extensions in commonly used floating‐point MIN and MAX reductions. Performance advantages are demonstrated with experimental results. Copyright © 2006 John Wiley &amp; Sons, Ltd.
Development of CCD cameras for soft x-ray imaging at the National Ignition Facility (2013)

The Static X-Ray Imager (SXI) is a National Ignition Facility (NIF) diagnostic that uses a CCDcamera to record timeintegrated X-ray images of target features such as the laser entrance hole of hohlraums. SXI has two dedicated positioners on the NIF target chamber for viewing thetarget from above and below, and the X-ray energies of interest are 870 eV for the “soft” channel and 3 – 5 keV for the “hard” channels. The original cameras utilize a large formatbackilluminated 2048 x 2048 CCD sensor with 24 micron pixels. Since the original sensor isno longer available, an effort was recently undertaken to build replacement cameras withsuitable new sensors. Three of the new cameras use a commercially available front-illuminatedCCD of similar size to the original, which has adequate sensitivity for the hard X-ray channelsbut not for the soft. For sensitivity below 1 keV, Lawrence Livermore National Laboratory (LLNL) had additional CCDs back-thinned andconverted to back-illumination for use in the other two new cameras. In this paper we describethe characteristics of the new cameras and present performance data (quantum efficiency, flat field, and dynamic range) for the front- and back-illuminated cameras, with comparisons to the originalcameras.
Cooperative and redundant roles of VEGFR‐2 and VEGFR‐3 signaling in adult lymphangiogenesis (2007)

Activation of vascular endothelial growth factor (VEGF) receptor-3 (VEGFR-3) by VEGF-C initiates lymphangiogenesis by promoting lymphatic proliferation and migration. However, it is unclear whether VEGFR-3 signaling is required beyond these initial stages, namely during the organization of new lymphatic endothelial cells (LECs) into functional capillaries. Furthermore, the role of VEGFR-2, which is also expressed on LECs and binds VEGF-C, is unclear. We addressed these questions by selectively neutralizing VEGFR-3 and/or VEGFR-2 for various time periods in an adult model of lymphangiogenesis in regenerating skin. While blocking either VEGFR-2 or VEGFR-3 with specific antagonist mAbs (DC101 and mF4-31C1, respectively) prior to lymphatic migration prevented lymphangiogenesis, blocking VEGFR-3 subsequent to migration did not affect organization into functional capillaries, and VEGFR-2 blocking had only a small hindrance on organization. These findings were confirmed in vitro using human LECs and anti-human antagonist mAbs (IMC-1121a and hF4-3C5): both VEGFR-2 and -3 signaling were required for migration and proliferation, but tubulogenesis in 3D cultures was unaffected by VEGFR-3 blocking and partially hindered by VEGFR-2 blocking. Furthermore, both in vitro and in vivo, while VEGFR-3 blocking had no effect on LEC organization, coneutralization of VEGFR-2, and VEGFR-3 completely prevented lymphatic organization. Our findings demonstrate that cooperative signaling of VEGFR-2 and -3 is necessary for lymphatic migration and proliferation, but VEGFR-3 is redundant with VEGFR-2 for LEC organization into functional capillaries.
Longitudinal Analysis of Herpes Simplex Virus–Specific CD4+Cell Clonotypes in Infected Tissues and Blood (2005)

Two different patterns of clonal persistence were observed. Some long-lasting clones appear to home to different epithelia, such as skin and genital mucosa, and to circulate in the peripheral blood, whereas others detected in lesions were absent or very rare in the peripheral blood.
The Function of Bipolar Hip Prostheses—A Laboratory Study Using Cadaveric Acetabula (1992)

Cadaveric acetabula were mounted in a hip simulator and the friction developed in each during articulation with a series of metal femoral head prostheses of differing sizes was measured. In a separate study, assembled Hastings bipolar hip prostheses were subjected to weight-bearing forces in the same acetabula and their self-righting mechanism was observed. The self-righting mechanism was found to function efficiently, in most cases overcoming the combined friction of the inner and outer articulations of the Hastings hip. However, during motion in the hip simulator a wide variation of friction was observed between different acetabula and within the same acetabulum with differing head size. In several cases this acetabular friction was found to be less than the friction in the inner articulation of the Hastings bipolar hip prosthesis, and this may explain some cases of reported failure of biarticular function.
A proposed large deployable space structures experiment for high power, large aperture missions in MEO (2005)

The Air Force Research Laboratory (AFRL) Space Vehicles Directorate has developed the deployable structures experiment (DSX) to research the technologies needed for large space structures and apertures, high-power generation, and survivability in the high radiation environment of a medium earth orbit (MEO). The proposed DSX concept is a combination of four research experiments that coupled together provides DoD with: a) transformational capability in space surveillance, b) microsats with large aperture and power, c) a validation of the key physics issues associated with active remediation of the effects of a high-altitude nuclear detonation (HAND), and d) new radiation survivability design criteria for satellite systems planned for the highly desirable medium Earth orbit (MEO) regime. The four DSX experiments are fundamental research on large deployable space structures, radiation belt remediation (RBR), thin-film photovoltaics (TF-PV), and space particle measurement in the MEO environment. Used on small satellites this capability is transformational: large apertures and high power will be available on low-cost, easily launched platforms. This research will enable the large apertures needed for missions such as space-based radar with target-tracking capability, the high-power generation capability needed for electric propulsion orbit transfer vehicles, and radiation belt remediation using space-based transmitters. The baseline DSX experiment is planned to be launch ready by late 2008 with at least one year of on-orbit operations. The 2008 launch schedule is based on the available funding profile. A schedule driven by hardware development could be ready for launch as early as late 2006. Whereas the 2008 launch date is the current baseline, AFRL is exploring options to increase funding and accelerate the launch. An overview of flight experiment concept, flight experiment objectives, and satellite description will be presented along with a discussion of the challenges and solutions for removing power, large structures for expanded apertures, and the MEO environment as constraints to space capability.
Advancing metal halide perovskite development with machine learning (2021)

Low-cost, high-efficiency metal halide perovskite solar cells (PSC) are a promising alternative to Si photovoltaics, but poor stability currently precludes commercialization. We present a framework for accelerated PSC design using machine learning (ML) to identify optimal compositions, fabrication parameters, and device operating conditions. We present four examples showcasing our ML roadmap using various types of neural networks, applied to diverse problems such as forecasting time-series photoluminescence (PL) from perovskite thin films, projecting PSC power output and degradation over time, and predicting figures of merit from simple, high-throughput experimental procedures. Our paradigm informs the rational development of perovskite devices, providing an accelerated pathway to commercialization.
Practical threshold for micronucleated reticulocyte induction observed for low doses of mitomycin C, Ara-C and colchicine (2005)

Micronucleus induction was studied for the DNA target clastogens mitomycin C (MMC) and 1-beta-D-arabinofuranosylcytosine (Ara-C), and also the non-DNA target aneugen colchicine (COL) in order to evaluate the dose-response relationship at very low dose levels. The acridine orange (AO) supravital staining method was used for microscopy and the anti-CD71-FITC based method was used for flow cytometric analysis. In the AO method, 2000 reticulocytes were analysed as commonly advised, but in the flow cytometric method, 2000, 20,000, 200,000 and 1,000,000 reticulocytes were analysed for each sample to increase the detecting power (i.e. sensitivity) of the assay. The present data show that increasing the number of cells scored increases the statistical power of the assay when the cell was considered as a statistical unit. Even so, statistically significant differences from respective vehicle controls were not observed at the lowest dose level for MMC and Ara-C, or the lower four dose levels for COL, even after one million cells were analysed. When the animal was considered as a statistical unit, only the top dose group for each chemical showed significant increase of micronucleated reticulocytes frequency. As non-linear dose-response curves were obtained for each of the three chemicals studied, these observations provide evidence for the existence of a practical threshold for the DNA target clastogens as well as the non-DNA target aneugen studied.