gebhart/patrepeval huggingface dataset:
Non-Invasive Hybrid Sensory System for Direct Brain Control of Artificial Limbs (2010)

Current commercially available motorized replacement limbs rely on the activation of remaining muscle tissue or a different portion of the body to operate joints in the prosthetic, which requires training to use and may never feel natural. Research to improve artificial limb technology is focused on using implants to monitor electrical activity in the nervous system or rerouting nerve endings to healthy muscle tissue, both of which require a medical procedure to be performed. This paper presents results of research which has been focused on the feasibility of using a non-invasive prosthetic control system that utilizes a hybrid of feedforward and feedback sensors. This research examines the correlation between brain activity across the primary motor cortex and muscle activity during upper body limb movement. The hybrid sensory system is composed of an optical imager for the detection of localized brain activities, electroencephalography (EEG) and electromyography (EMG) sensors. This paper will present design of the sensory system, the proposed control architecture, and human subject results. The improved accuracy of the brain intention determination algorithm as well as integration with a learning control loop will be presented and discussed.
Transmission-system static VAR control. Final report (1982)

This contract concerns the development, design, manufacture, installation, and field test of a static VAR generator (SVG) at the Minnesota Power and Light Shannon Substation. Broadly, the objectives of the project demonstrate the design methodology, the practicality, and the efficiency of static VAR control for power transmission systems. The program covers development, design, and installation of a 40-MVAR thyristor-controlled, inductive reactor in parallel with two 35-MVAR, shunt-capacitor banks to control a 230-kV transmission voltage. This research evaluates the SVG performance over a wide range of conditions. Within the scope of the project are the SVG switches and their controls configured to provide continuous control over the net reactance applied from 70 MVA capacitive to 40 MVA inductive; the filtering necessary to prevent injection of harmonic disturbances into the transmission line; the protection equipment required; the switch cooling apparatus; and the monitoring and display facilities needed to operate the system. This final report draws together in a single document all of the analytical and design description background material which has been developed during the project execution, and presents the empirical data generated during the twelve month field tests.
Tumor susceptibility gene 101 protein represses androgen receptor transactivation and interacts with p300 (1999)

These results indicate that TSG101 can function as a transcription modulator to affect nuclear receptor-mediated transcriptional activation, which raises the possibility that the tumor suppression by TSG101 observed previously may be mediated at least in part by its effects on nuclear receptor function.
Re-thinking surface enhance Raman spectroscopy (SERS) sensors with a systems perspective (2017)

While surface enhanced Raman spectroscopy (SERS) may not compete with the standard central lab approaches for chemical and biological sensing, SERS may have the potential to provide unique capabilities for analytics away from the central lab. Raman spectrometers have evolved from benchtop systems to high-performing handheld instruments that are compatible with analysis of samples in the field. However, for SERS to truly succeed as a “point-of-sample” analytical technique, the SERS sensor must fit the needs of analysis in the field, including little or no sample preparation, minimal peripheral equipment, and ease of use. Traditional plasmonically-active rigid devices do not meet these requirements. Even microfluidic SERS devices generally are not compatible with point-of-sample analysis, as the "world-to-chip" interface presents challenges, and peripheral equipment is generally required. In this review we will discuss the advances in plasmonic substrates fabricated on porous membranes, leading to SERS sensors that can collect samples via swabbing or dipping, clean up samples through separation, concentrate analytes by lateral flow focusing, and avoid the need for peripheral equipment. In particular, we will focus on inkjet-fabricated devices, which may present the best opportunity for scale-up via roll-to-roll manufacturing. We will also discuss the directions that flexible SERS sensors are moving the field, such as simple fabrication techniques, new support materials, SERS swabs, and SERS-active tapes and films.
Photoresist-based dielectric resonator antenna fabrication and performance: A review (2014)

Some of the techniques that we have used to facilitate the fabrication and enhance the performance of photoresist-based dielectric resonator antennas are presented. These techniques are discussed under three different categories of material development, fabrication process, and antenna performance.
Novel screening test for celiac disease using peptide functionalised gold nanoparticles (2018)

The study demonstrates the potential of gold nanoparticle-peptide based approach to be adapted for developing a screening assay for celiac disease diagnosis. The assay could be a part of an exclusion based diagnostic strategy and prove particularly useful for testing high celiac disease risk populations.
Performance of a Wireless Sensor Network for Crop Water Monitoring and Irrigation Control (2012)

Robust automatic irrigation scheduling has been demonstrated using wired sensors and sensor network systems with subsurface drip and moving irrigation systems. However, there are limited studies that report on crop yield and water use efficiency resulting from the use of wireless networks to automatically schedule and control irrigations. In this study, a multinode wireless sensor network (WSN) system was mounted onto a six-span center pivot outfitted with a commercial variable rate irrigation (VRI) system. Data from the WSN was used for automatic irrigation scheduling and irrigation control to produce an early hybrid variety of grain sorghum in 2011. An integrated crop water stress index (CWSI) was used as a threshold to schedule irrigations. Half of the center pivot field was divided into six sectors, three were irrigated using automatic control, and three were irrigated based on weekly direct soil water measurements. Wireless sensor nodes, i.e. infrared thermometers, GPS unit, and multiband radiometers were integrated onto the center pivot system and field below. The WSN system was scaled to 40 different nodes and was operational throughout 98% of the growing season. An assessment of the reliability of the nodes, demonstrated that delivery rates for data packets from the different nodes ranged between 90% to 98%. Automatic irrigation scheduling succeeded in producing mean dry grain yields and controlling crop water use efficiency (WUE) at levels that were similar to those from soil water based irrigation scheduling. Average seasonal integrated crop water stress indices were negatively correlated to irrigation treatment amounts in both the manual and automatic plots and correlated well to crop water use. These results demonstrate that it is feasible to use WSN systems for irrigation management on a field scale level.
Preparation of Polyacrylonitrile-<i>block</i>-poly(<i>n</i>-butyl acrylate) Copolymers Using Atom Transfer Radical Polymerization and Nitroxide Mediated Polymerization Processes (2003)

The preparation of block copolymers with acrylonitrile (AN) and n-butyl acrylate (n-BA) was examined using two controlled radical polymerization (CRP) processes: atom transfer radical polymerization (ATRP) and nitroxide mediated polymerization (NMP). When crossing from poly(n-butyl acrylate) (PBA) to polymerization of AN, the use of halogen exchange in an ATRP process improved control of polymerization. However, when switching from polyacrylonitrile (PAN) to n-BA, the cross-propagation was well controlled without halogen exchange. These differences in blocking efficiency can be explained by differences in the bond dissociation energy of the terminal carbon−halogen bond. In NMP, an efficient transition from a preformed PBA block to AN polymerization required the presence of excess of nitroxide. However, chain-extension from PAN to PBA, even under homogeneous conditions and with an excess nitroxide, was less efficient, and GPC traces showed bimodality.
Synthesis of 2,3-Disubstituted Indoles via Palladium-Catalyzed Annulation of Internal Alkynes (1998)

The palladium-catalyzed coupling of 2-iodoaniline and the corresponding N-methyl, -acetyl, and -tosyl derivatives with a wide variety of internal alkynes provides 2,3-disubstituted indoles in good-to-excellent yields. The best results are obtained by employing an excess of the alkyne and a sodium or potassium acetate or carbonate base plus 1 equiv of either LiCl or n-Bu4NCl, occasionally adding 5 mol % PPh3. The yields with LiCl appear to be higher and more reproducible than those obtained with n-Bu4NCl. The process is quite general as far as the types of substituents which can be accommodated on the nitrogen of the aniline and the two ends of the alkyne triple bond. The reaction is quite regioselective, placing the aryl group of the aniline on the less sterically hindered end of the triple bond and the nitrogen moiety on the more sterically hindered end. This methodology readily affords 2-silylindoles, which can be easily protodesilylated, halogenated, or reacted with alkenes and Pd(OAc)2 to produce 3-substituted indoles, 2-haloindoles, or 2-(1-alkenyl)indoles, respectively. The presence of alcohol groups in the alkyne seems to have a particularly strong directing effect, perhaps due to coordination with palladium. This catalytic process apparently involves arylpalladium formation, regioselective addition to the C−C triple bond of the alkyne, and subsequent intramolecular palladium displacement.
Integrated-optic sampler for transient rf and microwave signals (1986)

High-speed sampling of electrical signals using integrated-optic devices has become a subject of great interest. 1,2 Their small size, the ease of interfacing them with fast laser sources, and the high potential bandwidth of the electrooptic effect make integrated-optic devices ideal for high-speed and possibly low-cost sampling devices. The work reported here is devoted to development of the novel high-speed integrated-optic sampler shown in Fig. 1. The device consists of a series of electrooptic couplers fabricated along a coplanar rf stripline so that the electric field across each coupler is determined by the local voltage along the stripline and associated ground strip. A short optical pulse, which propagates in a direction opposite to the traveling wave electrical signal, passes sequentially through the electrooptic couplers causing a small amount of light to couple into the output waveguides and propagate to the optical detectors. The amount of coupled light is dependent on the local electric field. Each detector integrates the energy of the coupled optical pulses in the respective output waveguides to determine the associated instantaneous values of the electrical signal.
Dimensionality Reduction Techniques for Efficient Adaptive Pulse Compression (2010)

Adaptive filtering for radar pulse compression has been shown to improve sidelobe suppression through the estimation of an appropriate pulse compression filter for each individual range cell of interest. However, the relatively high computational cost of full-dimension, adaptive range processing may limit practical implementation in many current real-time systems. Dimensionality reduction techniques are here employed to approximate the framework for pulse compression filter estimation. Within this approximate framework, two new minimum mean square error (MMSE) based adaptive algorithms are derived. The two algorithms are denoted as specific embodiments of the fast adaptive pulse compression (FAPC) method and are shown to maintain performance close to that of full-dimension adaptive processing, while reducing computation cost by nearly an order of magnitude (in terms of the discretized waveform length N).
Sodium sulphur cells. [current collector design/materials] (1978)

Our survey has revealed that the phytoplankton in the anthropo-hypersaline lakes of the Transylvanian Basin (Romania) was often dominated by photoautotrophic picoplankton (PPP, cells with a diameter <2 μm). Therefore, the aim of this study was to identify PPP members both in the summer and the winter communities using molecular biological techniques, denaturing gradient gel electrophoresis (DGGE) and sequence analysis. The applied PCR-DGGE methods were highly specific to cyanobacteria and green algae. A total of 11 different plankton taxa were identified that were related to several distant taxonomic groups. PPP were represented by a simple community and consisted of two major genotypes, one from the green algal species Picochlorum oklahomense and the other related to marine Synechococcus isolates (Cyanobacteria). These marine PPP species were recorded for the first time in inland saline lakes from Europe. Besides picoplankton, several additional marine taxa (e.g. cryptophytes and haptophytes) were detected among the nanoplankton species. The presence of the identified marine and hypersaline species could be explained by wind, precipitation or waterfowl transfer; however, this latter could have smaller importance.
Robust self‐navigated body <scp>MRI</scp> using dense coil arrays (2015)

The proposed method can provide accurate automated motion estimation for body MRI using dense coil arrays. It can enable self-navigated free-breathing abdominal and cardiac MRI without the need for external motion monitoring devices. Magn Reson Med 76:197-205, 2016. © 2015 Wiley Periodicals, Inc.
Antigenic Topology of Chlamydial PorB Protein and Identification of Targets for Immune Neutralization of Infectivity (2002)

The outer membrane protein PorB is a conserved chlamydial protein that functions as a porin and is capable of eliciting neutralizing Abs. A topological antigenic map was developed using overlapping synthetic peptides representing the Chlamydia trachomatis PorB sequence and polyclonal immune sera. To identify which antigenic determinants were surface accessible, monospecific antisera were raised to the PorB peptides and were used in dot-blot and ELISA-based absorption studies with viable chlamydial elementary bodies (EBs). The ability of the surface-accessible antigenic determinants to direct neutralizing Ab responses was investigated using standardized in vitro neutralization assays. Four major antigenic clusters corresponding to Phe(34)-Leu(59) (B1-2 and B1-3), Asp(112) -Glu(145) (B2-3 and B2-4), Gly(179)-Ala(225) (B3-2 to B3-4), and Val(261)-Asn(305) (B4-4 to B5-2) were identified. Collectively, the EB absorption and dot-blot assays established that the immunoreactive PorB Ags were exposed on the surface of chlamydial EBs. Peptide-specific antisera raised to the surface-accessible Ags neutralized chlamydial infectivity and demonstrated cross-reactivity to synthetic peptides representing analogous C. pneumoniae PorB sequences. Furthermore, neutralization of chlamydial infectivity by C. trachomatis PorB antisera was inhibited by synthetic peptides representing the surface-exposed PorB antigenic determinants. These findings demonstrate that PorB Ags may be useful for development of chlamydial vaccines.
Antimicrobial Activity of Some <i>N</i> -Substituted Amides of Long-Chain Fatty Acids (1969)

Seventy-three N,N-disubstituted amides of long-chain, principally C(18), fatty acids were screened for antimicrobial activity against bacteria, yeasts, and molds. Amides containing an epoxy group exhibit a broad spectrum of antimicrobial activity which is further enhanced by unsaturation. Mono-unsaturation alone does not contribute a broad level of activity to the N,N-disubstituted amides of the C(18) fatty acids.
Two element wide-band frequency reconfigurable MIMO antenna system for 4G applications (2016)

In this paper, a low-profile wideband, frequency reconfigurable multiple-input-multiple-output (MIMO) antenna system is presented with wide tunability range for cognitive radio (CR) applications. The two element antenna design is embedded with varactor diodes for variable capacitive loading to achieve frequency reconfigurability. A smooth variation in the resonating frequencies from 1610~2710 MHz is achieved by varying the capacitive loading with minimum measured bandwidth of 470 MHz in each sub-band within the entire covered range. The proposed antenna design is compact with single element dimensions of 7.9×25.4 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> on a single board dimensions of 60×100×0.8 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> . The proposed antenna design is suitable for wireless handheld devices and mobile terminals in 4G applications for CR platforms. The antenna system is also characterized for MIMO performance metrics.
Effects of Maternal Lineages Grouped by Mitochondrial Genotypes on Milk Yield and Composition (1993)

Maternal lineages grouped by several methods of classification using mitochondrial DNA sequence characteristics were evaluated with animal models. Maternal pedigrees for cattle from a selection experiment begun in 1968 were traced to the earliest female member in the Holstein-Friesian Herd Book, and foundation females were assigned to maternal lineages. Mitochondrial DNA displacement loop sequence data were available for 36 lineages; all cows within lineages were considered to be identical for useful DNA sequence polymorphisms. Maternal lineages were grouped according to base pair substitution at a single locus, clustering based on displacement loop sequences, or genotypes defined by sequence and restriction site differences. Base pair substitution (adenine to guanine) at nucleotide 169 defined two maternal lineage groups that differed significantly for fat yield and percentage and estimated milk energy. Clustering the 36 maternal lineages by using 16 mitochondrial DNA displacement loop sequence differences produced 24 groups that significantly influenced fat percentage and energy concentration in milk. Decreasing the number of clustered groups from 24 to 14 produced g~oups that differed at some polymorphic sItes but remained identical for most. The F statistics for 14 groups were
Later‐onset congenital central hypoventilation syndrome due to a heterozygous 24‐polyalanine repeat expansion mutation in the <i>PHOX2B</i> gene (2008)

CCHS should be suspected in individuals presenting with unexplained hypoventilation and/or seizures after anesthetics or sedatives. This is the first report of LO-CCHS in a kindred with the PHOX2B 20/24 genotype. The incomplete penetrance observed in this family suggests a gene-environment interaction.
Improved morphology in electrochemically grown conducting polymer films (1990)

A conducting polymer film with an improved space filling is formed on a metal electrode surface. A self-assembling monolayer is formed directly on the metal surface where the monolayer has a first functional group that binds to the metal surface and a second chemical group that forms a chemical bonding site for molecules forming the conducting polymer. The conducting polymer is then conventionally deposited by electrochemical deposition. In one example, a conducting film of polyaniline is formed on a gold electrode surface with an intermediate monolayer of p-aminothiophenol.
Method for imaging quantum dots during exposure to gamma radiation (2011)

Quantum dots have been used in a wide variety of biomedical applications. A key advantage of these particles is that their optical properties depend predictably on size, which enables tuning of the emission wavelength. Recently, it was found that CdSe/ZnS quantum dots lose their ability to photoluminescence after exposure to gamma radiation (J. Phys. Chem. C., 113: 2580-2585 (2009). A method for readout of the loss of quantum dot photoluminescence during exposure to radiation could enable a multitude of real-time dosimetry applications. Here, we report on a method to image photoluminescence from quantum dots from a distance and under ambient lighting conditions. The approach was to construct and test a time-gated imaging system that incorporated pulsed illumination. The system was constructed from a pulsed green laser (Nd:YAG, 20 pulses/s, 5 ns pulse duration, ~5 mJ/pulse), a time-gated camera (LaVision Picostar, 2 ns gate width), and optical components to enable coaxial illumination and imaging. Using the system to image samples of equivalent concentration to the previous end-point work, quantum dot photoluminescence was measureable under ambient room lighting at a distance of 25 cm from the sample with a signal to background of 7.5:1. Continuous exposure of samples to pulsed laser produced no measureable loss of photoluminescence over a time period of one hour. With improvements to the light collection optics the range of the system is expected to increase to several metres, which will enable imaging of samples during exposure to a gamma radiation source.
Foundations of probabilistic answers to queries (2005)

Overview: Probabilistic query answering is a fundamental set of techniques that underlies several, very recent database applications: exploratory queries in databases, novel IR-style approaches to data integration, querying information extracted from the Web, queries over sensor networks, data acquisition, querying data sources that violate integrity constraints, controlling information disclosure in data exchange, and reasoning about privacy breaches in data mining. This is a surprisingly diverse range of applications, most of which have either emerged recently, or have seen a recent increased interest, and which all share a common fundamental abstraction: that an item being in the answer to a query is no longer a boolean value, but a probabilistic event. It this authors belief that this is a new paradigm in query answering, whose foundations lie in random graphs, and 0/1-laws in finite model theory. The results from these fields, and their relevance to the probabilistic query answering method, are very little known in the database research community, and the theoretical research papers or books that describe them are not very popular in the systems database research community.