gebhart/patrepeval huggingface dataset:
Comparison of Three Algorithms for Filtering Airborne Lidar Data (2005)

This paper compares three methods for removing non-ground measurements from airborne laser scanning data. These methods, including the elevation threshold with expanding window (ETEW), maximum local slope (MLS), and progressive morphological (PM) filters, analyze data points based on variations of local slope, and elevation. Low and high-relief data sets with various densities of trees, houses, and sand dunes were selected to test the filtering methods. The results show that all three methods can effectively remove most nonground points in both low-relief urban and high-relief forested areas. The PM filter generated the best result in coastal barrier island areas, whereas the other algorithms tended to remove the tops of steep sand dunes. Each method experienced various omission or commission errors, depending on the filtering parameters. Topographic slope is the most sensitive parameter for the three filtering methods.
Composite Piezoelectric Materials for Medical Ultrasonic Imaging Transducers -- A Review (1986)

This paper surveys published research on the use of composite physicians. piezoelect.ric materials to make the acoustic transducers used in medical ultrasonic imaging. For medical imaging transducers, attention has focused on the 1-3, PZT-rod/polymer composite structure. The piezoelectric plates used in such ultrasonic transducers consist of a polymer matrix which holds together parallel thin rods of piezoelectric ceramic oriented perpendicular to the faces of the plate. By varying the properties, proportions and spatial scales of the polymer and piezoceramic constituents a rich variety of material properties are achieved. Of particular interest for medical imaging transducers is the ability to engineer materials whose electromechanical coupling is higher than that of conventional materials and whose acoustic impedance is close to that of tissue. Besides these basic advantages in material parameters. composites have properties that facilitate meeting other technological requirements. Flexible composite piezoelectrics can be formed into complex curved shapes for steering and focusing the acoustic waves. Transducer arrays can he made from composites by patterning the electrode alone -- cutting the piezoelectric is not required.
Comparison of Ear-Canal Reflectance and Umbo Velocity in Patients With Conductive Hearing Loss: A Preliminary Study (2011)

The combination of |ECR| with audiometry showed clinical utility in the differential diagnosis of conductive hearing loss in the presence of an intact tympanic membrane and an aerated middle ear and seems to be of similar sensitivity and specificity to measurements of VU plus audiometry. Additional research is needed to expand upon these promising preliminary results.
Digidesign's Sound Accelerator: Lessons Lived and Learned (1989)

This paper describes Digidesign's Sound Accelerator, a digital signal processing card for the Apple Macintosh II and SE based on Motorola's 56001 digital signal processing (DSP) chip. The card also includes dual 16-bit digital-to-analog converters allowing 44.1 KHz stereo playback. An expansion port on the card provides connection to a stereo 16-bit analog-to-digital conversion box as well as an Audio Engineering Society/European Broadcast Union (AES/EBU) digital interface for digital audio tape (DAT) or compact disk (CD) player interfacing. This paper describes the card's hardware and then outlines the development environment that has been created for the Sound Accelerator. Finally, there is a discussion of the limits of this environ-
Selenium and immune functions in humans (1983)

Earlier animal experiments have shown that selenium depletion may decrease immune functions. In this human study, 40 volunteers from a population with low serum selenium concentrations were supplemented with selenium or placebo for 11 weeks. Blood samples were drawn at intervals for analysis of selenium status and immune function. At the end of the supplementation period, plasma selenium levels were 74 ng/ml in the placebo group and 169 ng/ml in the supplemented group. The improvement in selenium status was associated with a 57% increase in the activity of platelet glutathione peroxidase in the group supplemented with selenium, but there was no increase in the activity of this enzyme in the placebo-treated subjects. Immune function was measured in vitro by tests of lymphocyte and granulocyte activity. Intracellular killing of Staphylococcus aureus by granulocytes was slightly lower in the placebo group than in the selenium group at the end of the supplementation period (77.2 compared to 85.2%; P less than 0.05). No significant changes were observed in phagocytosis, chemotactic factor generation, antibody or leukocyte migration inhibitory factor production by lymphocytes, or proliferative responses to phytohemagglutinin or concanavalin A. These results suggest that the selenium deficiency of the order found in Finland and some other areas of the world has little, if any, influence on the immune functions measured in this study.
Low Voltage Control of Micro-Ionic Thrusters Using the Electrostatic Induced Potential of the Collector (2021)

This work presents a low voltage (5 V) control method for micro-ionic thrusters with high operating voltage (>1 kV). When the collector of a micro-ionic thruster is connected to the negative electrode through a 5V switch circuit, and a high DC voltage (1-10 kV) is applied to the emitter, we can get a suitable control voltage (0-4 kV) based on the electrostatic induced potential characteristics of the collector. This voltage control method allows multiple emitters to share one boost circuit of high DC voltage without using multiple high voltage control circuits. Theoretical analysis, simulations, and experiments are conducted to validate our low voltage control method, and the attitude control of a lever device with two ion thrusters in different conditions is realized with a small steady error within 2 seconds.
Interplay between ascorbic acid and lipophilic antioxidant defences in chloroplasts of water‐stressed <i>Arabidopsis</i> plants (2002)

The effects of low ascorbic acid (Asc) on lipophilic antioxidant defences and lipid peroxidation in chloroplasts were evaluated in the vtc-1 mutant of Arabidopsis thaliana, which had an Asc deficiency in chloroplasts of ca. 60%. Although low Asc did not cause oxidative stress in optimal growth conditions, it increased malondialdehyde levels in chloroplasts by ca. 60%, and reduced alpha-tocopherol and beta-carotene by ca. 85% and 40%, respectively, in water-stressed (WS) mutants. These results are indicative of the interplay between Asc and lipophilic antioxidants in chloroplasts of WS plants in vivo, and show that Asc contributes to the protection of thylakoid membrane lipids from oxidation in stressed plants.
Design of an 8-element switched mode circular antenna array for vehicular direction finding (2011)

In this work we present the design and fabrication of an 8-element circular printed yagi antenna array that is operated in switched mode for a radio frequency direction finding system in vehicular platforms. The array is designed to operate in the 2.45 GHz frequency band. The directional gain patterns have a HPBW between 65 - 110 degrees in the azimuth plane which will be used to identify the direction of the incoming RF signal from one of 8 sectors. The introduction of ground splits in the ground plane gave a better shaped directional pattern as well as better matching. Simulation and measurement results are shown and compared.
Combining multiple high quality corpora for improving HMM-TTS (2012)

The most reliable way to build synthetic voices for end-products is to start with high quality recordings from professional voice talents. This paper describes the application of average voice models (AVMs) and a novel application of cluster adaptive training (CAT) to combine a small number of these high quality corpora to make best use of them and improve overall voice quality in hidden Markov model based text-to-speech (HMMTTS) systems. It is shown that integrated training by both CAT and AVM approaches, yields better sounding voices than speaker dependent modelling. It is also shown that CAT has an advantage over AVMs when adapting to a new speaker. Given a limited amount of adaptation data CAT maintains a much higher voice quality even when adapted to tiny amounts of speech.
DNA chain growth during replication of asynchronous L1210 cells. Alkaline elution of large DNA segments from cells lysed on filters (1974)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDNA chain growth during replication of asynchronous L1210 cells. Alkaline elution of large DNA segments from cells lysed on filtersKurt W. Kohn, Charles A. Friedman, Regina A. G. Ewig, and Zafar M. IqbalCite this: Biochemistry 1974, 13, 20, 4134–4139Publication Date (Print):September 1, 1974Publication History Published online1 May 2002Published inissue 1 September 1974https://doi.org/10.1021/bi00717a011RIGHTS & PERMISSIONSArticle Views41Altmetric-Citations103LEARN 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 InReddit PDF (651 KB) Get e-Alertsclose Get e-Alerts
Leveraging field data for impact analysis and regression testing (2003)

Software products are often released with missing functionality, errors, or incompatibilities that may result in failures, inferior performances, or user dissatisfaction. In previous work, we presented the Gamma approach, which facilitates remote analysis and measurement of deployed software and permits gathering of program-execution data from the field. In this paper, we investigate the use of the Gamma approach to support and improve two fundamental tasks performed by software engineers during maintenance: impact analysis and regression testing. We present a new approach that leverages field data to perform these two tasks. The approach is efficient in that the kind of field data that we consider require limited space and little instrumentation. We also present a set of empirical studies that we performed, on a real subject and on a real user population, to evaluate the approach. The results of the studies show that the use of field data is effective and, for the cases considered, can considerably affect the results of dynamic analyses.
Bezafibrate for an Inborn Mitochondrial Beta-Oxidation Defect (2009)

International audience
STAPHYLOCOCCAL ANTIBODY PRODUCTION IN RESPONSE TO INJECTIONS WITH <i>LISTERIA MONOCYTOGENES</i> (1960)

Antibody levels after contact withspecific antigens havebeenreported torise inresponse tostimuli fromunrelated antigens (Perla and Marmorston, Natural Resistance andClinical Medicine, Little, BrownandCo.,Boston, 1941; Schultz andSwift, J.Exptl. Med.,60,323, 1934). TheworkofJohnson, Gaines, andLandy (J.Exptl. Med.,103,225,1956) demonstrated theenhancement ofantibody responsetoprotein antigens by simultaneously injecting purified lipopolysaccharide ofSalmonella typhosa with theantigens. Johnson etal.failed topromote nonspecific anamnestic responsesupon injection oftheir lipopolysaccharide intoanimals previously immunized withotherantigens. Thispaper reportsthe anamnestic-like production ofstaphylococcal antibodies evoked byinjecting rabbits withListeria monocytogenes. Antigens ofStaphylococcus epidermidis and L.monocytogenes (serotype 1)were prepared by treatment ofthecells withformalin. Onesetof rabbits was given a series offourintravenous injections ofthestaphylococcal antigen over a period of10to12days. Fiveto7daysafter the last injection, agglutinin titers were determined bytesting eachserum withantigens fromboth S.epidermidis andL.monocytogenes. Blood was drawnapproximately 100dayslater andagglutination tests were performed employing the antigens ofbothorganisms. Therabbits then were given a single intravenous injection ofthe formalin suspension ofListeria andtheir agglutinin levels forS.epidermidis andL.monocytogeneswere determined 5dayslater. Another setofrabbits was treated as above; however, first they were given a series ofListeria injections andlater a single injection ofthe staphylococcal preparation.
SQuad: Compact Representation for Triangle Meshes (2011)

Abstract The SQuad data structure represents the connectivity of a triangle mesh by its “S table” of about 2 rpt (integer references per triangle). Yet it allows for a simple implementation of expected constant‐time, random‐access operators for traversing the mesh, including in‐order traversal of the triangles incident upon a vertex. SQuad is more compact than the Corner Table (CT), which stores 6 rpt, and than the recently proposed SOT, which stores 3 rpt. However, in‐core access is generally faster in CT than in SQuad, and SQuad requires rebuilding the S table if the connectivity is altered. The storage reduction and memory coherence opportunities it offers may help to reduce the frequency of page faults and cache misses when accessing elements of a mesh that does not fit in memory. We provide the details of a simple algorithm that builds the S table and of an optimized implementation of the SQuad operators.
Zagier duality for harmonic weak Maass forms of integral weight (2010)

We show the existence of âZagier dualityâ between vector valued harmonic weak Maass forms and vector valued weakly holomorphic modular forms of integral weight. This duality phenomenon arises naturally in the context of harmonic weak Maass forms as developed in recent works by Bruinier, Funke, Ono, and Rhoades. Concerning the isomorphism between the spaces of scalar and vector valued harmonic weak Maass forms of integral weight, Zagier duality between scalar valued ones is derived.
Liver microsomal cytochrome P-450 and the oxidative metabolism of arachidonic acid. (1981)

Arachidonic acid is oxidatively metabolized by rat liver microsomes at a rate of approximately 5 nmol per min per mg of protein at 25 degrees C. This reaction is dependent on the presence of NADPH and oxygen. Studies with various inhibitors indicate a role for membrane-bound cytochrome P-450 in the transformation of arachidonic acid to a mixture of hydroxy acid derivatives. The stoichiometry of the reaction conforms to that of a monooxygenase reaction--i.e., one mole of NADPH is oxidized per mole of oxygen utilized--suggesting a reaction mechanism different from that proposed for lipid peroxidation reactions. No evidence for the formation of prostaglandin-like metabolites was obtained. The diene character of some of the metabolites formed suggests another role for cytochrome P-450--i.e., participation in hydrogen abstraction reactions for the activation of various substrates.
Adapter correction in the measurement of two-port devices (1988)

After an automatic network analyzer has been calibrated at its primary connectors, the full scattering matrices of adapters can be found with two known reflection standards in the secondary connector system. In coaxial systems, the standards can advantageously be a matched load and two 'half standards'-a short for phase and an open circuit for magnitude. The method is applicable to noninsertable devices, waveguides, and novel transmission lines.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
The family of metazoan metal-independent β-galactoside-binding lectins: structure, function and molecular evolution (1993)

Animal metal-independent beta-galactoside-binding lectins were initially found in vertebrates, but they have recently been isolated from much lower invertebrates, such as nematode and sponge, as well. Further, an eosinophilic lysophospholipase associated with various inflammatory reactions was very recently found to be a new member of this protein family. It appears that beta-galactoside-binding lectins and some non-lectin proteins form a superfamily whose members are widely distributed from vertebrates to invertebrates. From the viewpoints of protein architecture, the superfamily members can be subdivided into three types; i.e. 'proto type' (the relatively well-studied 14 kDa lectins), 'chimera type' (29-35 kDa lectins also known as epsilon BP/CBP35/Mac2/laminin-binding protein) and 'tandem-repeat type' (a newly found nematode 32 kDa lectin). Comparison of their amino acid sequences and mutagenesis studies have suggested the functional importance of some conservative hydrophilic residues (His44, Asn46, Arg48, Glu71 and Arg73 of human 14 kDa lectin). Several non-charged residues (Gly14, Phe45, Pro47, Phe49, Val59, Trp68, Pro78 and Phe79) are also well conserved, and are probably important to maintain the structural framework of these proteins. A consideration of molecular evolution suggests that lectins belonging to this family probably existed in the Precambrian era. Ubiquitous occurrence of these homologous lectins with shared sugar specificity suggests that they are involved in 'essential minimum' functions of multicellular animals, possibly in cooperation with their partner glycoconjugates.
THEOLOGY (1956)

THEOLOGY Get access Foundations of Christian Knowledge. By GEORGIA HARKNESSNashville: Abingdon Press, 1955. 160 pages. $2.75. RODERICK SCOTT RODERICK SCOTT Olivet College Search for other works by this author on: Oxford Academic Google Scholar Journal of the American Academy of Religion, Volume XXIV, Issue 2, April 1956, Pages 153-c–154, https://doi.org/10.1093/jaarel/XXIV.2.153-c Published: 01 April 1956
Origins of the avian neural crest: the role of neural plate-epidermal interactions (1995)

We have investigated the lineage and tissue interactions that result in avian neural crest cell formation from the ectoderm. Presumptive neural plate was grafted adjacent to non-neural ectoderm in whole embryo culture to examine the role of tissue interactions in ontogeny of the neural crest. Our results show that juxtaposition of non-neural ectoderm and presumptive neural plate induces the formation of neural crest cells. Quail/chick recombinations demonstrate that both the prospective neural plate and the prospective epidermis can contribute to the neural crest. When similar neural plate/epidermal confrontations are performed in tissue culture to look at the formation of neural crest derivatives, juxtaposition of epidermis with either early (stages 4-5) or later (stages 6-10) neural plate results in the generation of both melanocytes and sympathoadrenal cells. Interestingly, neural plates isolated from early stages form no neural crest cells, whereas those isolated later give rise to melanocytes but not crest-derived sympathoadrenal cells. Single cell lineage analysis was performed to determine the time at which the neural crest lineage diverges from the epidermal lineage and to elucidate the timing of neural plate/epidermis interactions during normal development. Our results from stage 8 to 10+ embryos show that the neural plate/neural crest lineage segregates from the epidermis around the time of neural tube closure, suggesting that neural induction is still underway at open neural plate stages.
TIDAL POWER GENERATION UTILIZING ATMOSPHERIC PRESSURE OR AIR RECIRCULATION<sup>1</sup> (1982)

ABSTRACT: This paper presents research conducted on tidal power generation utilizig atmospheric pressure or air recirculation. The proposed methods in this paper differ from conventional methods. That is, they require simple and relatively inexpensive power generating facilities that would convert the potential energy of the tides into kine tic energy of air for driving the air turbines in a power plant. The characteristics of the new methods are as follows: (1) in tidal power generation utilizing the atmospheric pressure, the air pressure exerted on an air turbine can be maintained at 1 atm regardless of the water head; (2) in tidal power generation utilizing the air recirculation, the air pressure exerted on an air turbine can be made twice as high as the available water head; (3) higher tidal energy conversion efficiency can be obtained by flowing larger quantities of water in a shorter time period; (4) the generating turbines can be located at a convenient place remote from the reservoir; and (5) equipment corrosion due to salt is minimized.
Reliability and Storage in Sensor Networks (2005)

A large class of delay tolerant sensor-net applications require reliable deliver of every data point. The nature of sensor network deployments makes providing reliability a challenge. Harsh environments and unreliable wireless communication can cause long periods of poor to no connectivity. Meanwhile, energy and resource constraints on sensor platforms limit retransmissions and buffer sizes. This paper presents an architecture designed for these challenged networks. The architecture provides packet-level, hop-by-hop reliability for delay-tolerant data using sequential storage for buffering during long queue delays. The concepts discussed in this paper are implemented as services in the Extensible Sensing System, a deployment at the James Reserve as part of the Cold Air Flow Project.
Inside-out NMR probe for portable spectrometry (2006)

Nuclear magnetic resonance (NMR) measurements in grossly inhomogeneous static magnetic fields are possible if the inhomogeneity is inferior to a theoretical limit. A design is proposed for a single-sided inside-out NMR probe with static and radiofrequency (RF) magnetic fields perpendicular and correlated on a large volume. This probe was constructed with ferrite material. It can found application as a portable scanner for local NMR spectrometry.
Analysis of YouTube user experience from passive measurements (2013)

In this paper, we analyze the YouTube service and the traffic generated from its usage. The purpose of this study is to identify by strictly using passive measurements the information that can be used as metrics or indicators of the progress of individual video sessions and to estimate the impact of these metrics in the user experience. We find a novel method to track the progress of the video playback that, in contrast to previous works, does not require instrumentation of the video player neither browser-based plug-ins. Instead, we extract important statistical information about the status of the playback by reverse engineering the metrics in related HTTP requests that are generated during playback. For the purpose of collecting these metrics, a tool was developed to perform YouTube traffic measurements by means of passive network monitoring in a large university campus network. The analysis of the obtained data revealed the most important sources of initial delay in the sessions as well as buffer outage events and download rate statistics. Further analysis revealed the impact of video advertisements and re-buffering events on the user experience in terms of video abandonment rate.