gebhart/patrepeval huggingface dataset:
Facile solvothermal synthesis of highly active and robust Pd1.87Cu0.11Sn electrocatalyst towards direct ethanol fuel cell applications (2016)

Ordered intermetallic Pd1.87Cu0.11Sn ternary electrocatalyst has been synthesized by sodium borohydride reduction of precursor salts Pd(acac)2, CuCl2.2H2O and SnCl2 using one-pot solvothermal synthesis method at 220 °C with a reaction time of 24 h. To the best of our knowledge, here for the first time we report surfactant free synthesis of a novel ordered intermetallic ternary Pd1.87Cu0.11Sn nanoparticles. The ordered structure of the catalyst has been confirmed by powder x-ray diffraction, transmission electron microscopy (TEM). Composition and morphology of the nanoparticles have been confirmed through field emission scanning electron microscopy, energy-dispersive spectrometry and TEM. The electrocatalytic activity and stability of the ternary electrocatalyst towards ethanol oxidation in alkaline medium was investigated by cyclic voltammetry and chronoamperometry techniques. The catalyst is proved to be highly efficient and stable upto 500th cycle and even better than commercially available Pd/C (20 wt%) electrocatalysts. The specific and mass activity of the as synthesized ternary catalyst are found to be ∼4.76 and ∼2.9 times better than that of commercial Pd/C. The enhanced activity and stability of the ordered ternary Pd1.87Cu0.11Sn catalyst can make it as a promising candidate for the alkaline direct ethanol fuel cell application.
Fast Charging of Li-Ion Cells: Part V. Design and Demonstration of Protocols to Avoid Li-Plating (2020)

Fast charging of Li-ion batteries would make “fueling” of electric vehicles comparable in time to fueling of gasoline-powered cars, increasing consumer appeal of the new technology. Taking the US Department of Energy goal of safe 6 C charging to 80% capacity as a guide, we describe approaches that can mitigate Li plating on the graphite anode. To make this possible, a variable-rate anode potential charging protocol has been implemented by using a microprobe reference electrode to continuously monitor and adjust the current, in this way avoiding low anode potentials that favor Li deposition. Various implementations of the anode potential control are considered using electrochemical modeling and compared with the experimental data. For charge to 80% capacity at 30 °C, an average C-rate of 4.97 C was obtained for an NCM523/graphite cell with 70 μ m thick graphite electrode and 7.40 C for a cell with 47 μ m thick graphite electrode. Our electrochemical model accounts for these observations and provides a means to extrapolate the approach to other cell designs and operation regimes, drawing the maximum average fast charging rates that can still avoid Li plating.
An introduction to the multimedia educational resource for learning and online teaching (MERLOT) (2001)

The Multimedia Educational Resource for Learning and Online Teaching (MERLOT) is a continually growing collection of online learning materials and support resources that help faculty enhance their instruction. MERLOT is a community of people who strive to enrich the teaching and learning experience. The resources in MERLOT include: Learning materials, sample assignments showing how the materials could be used in the classroom, evaluations of the learning materials by other individual users and panels of faculty, and people who share an interest in teaching and learning.
Breast Density Assessment in Young Women with Ultrasound based on Speed of Sound: Influence of the Menstrual Cycle (2019)

To investigate changes in breast density (BD) during the menstrual cycle in young women in comparison to inter-breast and -segment changes as well as reproducibility of a novel Speed-of-Sound (SoS) Ultrasound (US) method.SoS-US uses a conventional US system with a reflector and a software add-on to quantify SoS in the retro-mammillary, inner and outer segments of both breasts. Twenty healthy women (18-40 years) with regular menstrual cycles were scanned twice with two weeks in-between. Three of these were additionally measured twice per week for 25 days. Average SoS (m/s) and ΔSoS (segment-variation SoS; m/s) were measured. Variations between follicular and luteal phases and changes over the four-week period were assessed. Inter-examiner and inter-reader agreements were also evaluated. Variances between cycle phases, examiners and readers were compared.No significant SoS difference was observed between follicular and luteal phases for the twenty women (P = .126), and between all different days for the three more frequently measured women (P = .892). Inter-reader (ICC = 0.999) and inter-examiner (ICC = 0.990) agreements were high. The SoS variance due to menstrual variations was not significantly larger than the inter-examiner uncertainty (P = .461). Inter-reader variations were significantly smaller than menstrual and examiner variations (P < .001).SoS-US showed high inter-examiner and inter-reader reproducibility. The alterations during the menstrual cycles were not significantly larger than the confidence interval of measurements.
An Algorithm for Constructing a Minimal Register with Non-linear Update Generating a Given Sequence (2014)

Registers with Non-Linear Update (RNLUs) are a generalization of Non-Linear Feedback Shift Registers (NLFSRs) in which both, feedback and feedforward, connections are allowed and no chain connection between the stages is required. An RNLU can be used to generate any given 2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">p</sup> -ary sequence, p ≥ 1. In this paper, a new algorithm for constructing RNLUs is presented. Expected size of RNLUs constructed by the presented algorithm is proved to be asymptotically smaller than the expected size of RNLUs constructed by previous algorithms generating the same sequence. The presented algorithm can potentially be useful for applications such as testing, wireless communications, and cryptography.
Development of a rapid, simple, and sensitive point-of-care technology platform utilizing ternary NanoLuc (2022)

Point-of-care tests are highly valuable in providing fast results for medical decisions for greater flexibility in patient care. Many diagnostic tests, such as ELISAs, that are commonly used within clinical laboratory settings require trained technicians, laborious workflows, and complex instrumentation hindering their translation into point-of-care applications. Herein, we demonstrate the use of a homogeneous, bioluminescent-based, split reporter platform that enables a simple, sensitive, and rapid method for analyte detection in clinical samples. We developed this point-of-care application using an optimized ternary, split-NanoLuc luciferase reporter system that consists of two small reporter peptides added as appendages to analyte-specific affinity reagents. A bright, stable bioluminescent signal is generated as the affinity reagents bind to the analyte, allowing for proximity-induced complementation between the two reporter peptides and the polypeptide protein, in addition to the furimazine substrate. Through lyophilization of the stabilized reporter system with the formulated substrate, we demonstrate a shelf-stable, all-in-one, add-and-read analyte-detection system for use in complex sample matrices at the point-of-care. We highlight the modularity of this platform using two distinct SARS-CoV-2 model systems: SARS-CoV-2 N-antigen detection for active infections and anti-SARS-CoV-2 antibodies for immunity status detection using chemically conjugated or genetically fused affinity reagents, respectively. This technology provides a simple and standardized method to develop rapid, robust, and sensitive analyte-detection assays with flexible assay formatting making this an ideal platform for research, clinical laboratory, as well as point-of-care applications utilizing a simple handheld luminometer.
Image Thresholding Improves 3-Dimensional Convolutional Neural Network Diagnosis of Different Acute Brain Hemorrhages on Computed Tomography Scans (2019)

Intracranial hemorrhage is a medical emergency that requires urgent diagnosis and immediate treatment to improve patient outcome. Machine learning algorithms can be used to perform medical image classification and assist clinicians in diagnosing radiological scans. In this paper, we apply 3-dimensional convolutional neural networks (3D CNN) to classify computed tomography (CT) brain scans into normal scans (N) and abnormal scans containing subarachnoid hemorrhage (SAH), intraparenchymal hemorrhage (IPH), acute subdural hemorrhage (ASDH) and brain polytrauma hemorrhage (BPH). The dataset used consists of 399 volumetric CT brain images representing approximately 12,000 images from the National Neuroscience Institute, Singapore. We used a 3D CNN to perform both 2-class (normal versus a specific abnormal class) and 4-class classification (between normal, SAH, IPH, ASDH). We apply image thresholding at the image pre-processing step, that improves 3D CNN classification accuracy and performance by accentuating the pixel intensities that contribute most to feature discrimination. For 2-class classification, the F1 scores for various pairs of medical diagnoses ranged from 0.706 to 0.902 without thresholding. With thresholding implemented, the F1 scores improved and ranged from 0.919 to 0.952. Our results are comparable to, and in some cases, exceed the results published in other work applying 3D CNN to CT or magnetic resonance imaging (MRI) brain scan classification. This work represents a direct application of a 3D CNN to a real hospital scenario involving a medically emergent CT brain diagnosis.
Sensing thorough obscurants – using fluctuations in stochastic coherent scattering (2016)

We exploit the enhanced fluctuations of scattering from random potentials illuminated sequentially by non-stationary speckle fields and obscured by turbid media, to determine both the characteristic length and the motion of potential’s center of mass.
Weathergods (2007)

In this paper we describe the game 'Weathergods', which is implemented on the Entertaible tabletop gaming platform [1]. The game uses either iconic or symbolic [2] tangible objects for interaction and marries both the advantages of traditional board games and computer games.
Determining time to traverse road sections based on mapping discrete GPS vehicle data to continuous flows (2010)

In this paper, we present and analyze an algorithm for mapping discrete GPS data gathered from vehicles to a continuous flow of data to determine the time to traverse a road section. Vehicle-tracking devices are installed in 80 probe vehicles in the Anchorage area, and a specific roadway section was chosen as a test section. Drivers for this study drove from before the start of the test roadway section past the end of the test roadway section, measuring the time to travel from the start to the finish of the test roadway section. The vehicle-tracking devices report speed and location every 10 seconds. From this data, we calculated the amount of time to traverse the test roadway section using our proportional model and compared it to the actual amount of time it took to traverse the test roadway section. We performed the analysis assuming the vehicle-tracking devices were reporting location every 10 seconds, 20 seconds, 30 seconds, 40 seconds, 50 seconds, and 60 seconds. With an average actual time to traverse the test roadway section of 2 minutes 28 seconds, the error rate based on the proportional model was between 1.8%-9.2% (2.7-13.1 seconds), based on how frequently the vehicle was reporting its location. Merely taking the average speed on the edge from the vehicle reporting its speed and location during those same durations had an error rate between 14.2%-25.8% (24.7-41.1 seconds). Our results show that the proportional model has a small error rate (1.8% with 10 second reporting time) and can accurately represent the time to traverse roadway sections based on discrete readings from a small number of probe vehicles.
Novel high-voltage hollow cathode device for gas lasers (1986)

The efficiency of cw hollow cathode lasers is connected to the possibility of operating the discharge at high-current densities and increased voltage. Unfortunately, in a conventional hollow cathode discharge some limitations exist due to discharge instabilities and arcing at high currents. These problems could hardly be avoided in the high-voltage hollow cathode discharge proposed in Ref. 1.
Liquid magnetic bubbles (1975)

A liquid analog of a magnetic bubble domain shift register has been constructed, using ferrofluid and an immiscible liquid. Bubble sizes from 50 to 1000 microns have been observed, with propagation frequencies to 60 Hz and propagation velocities for 300 micron bubbles of up to 6 cm/ sec. Display applications for these phenomena are discussed.
Flow Properties and the Velocity through the Pharynx of Solutions Prepared from Commercial Thickening Agents and Those of Yogurt with Relevance to Liquid-Type Care Foods for Dysphagic Patients (2010)

The viscosity, μ, and the velocity through the pharynx of solutions prepared from commercial thickening agents were compared with “fractured yogurt” as a model bolus of yogurt to evaluate their suitability as care foods for dysphagic patients. From the shape of velocity spectra and the values of velocity, the flow property of the “fractured yogurt” was considered to be close to that of the bolus of yogurt. The value of μ for the yogurt-like thickener solution was smaller than the apparent viscosity, μapp, for the “fractured yogurt” around the shear rate of 10 s-1. In addition, the value of Vmax, an index for the safety of care foods, for the yogurt-like and jam-like solutions was larger than that for the fractured yogurt. These results indicate that a yogurt-like solution does not necessarily have flow properties similar to those of yogurt and is less safe for dysphagic patients than yogurt.
Physicochemical characterization and molecular organization of the collagen A and B chains (1978)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhysicochemical characterization and molecular organization of the collagen A and B chainsR. Kent Rhodes and Edward J. MillerCite this: Biochemistry 1978, 17, 17, 3442–3448Publication Date (Print):August 22, 1978Publication History Published online1 May 2002Published inissue 22 August 1978https://pubs.acs.org/doi/10.1021/bi00610a003https://doi.org/10.1021/bi00610a003research-articleACS PublicationsRequest reuse permissionsArticle Views282Altmetric-Citations267LEARN 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
Navy S&T in FORCENet Assessment (2004)

Abstract : Naval Power 21 articulates the current and future naval vision and operating concepts. This vision describes FORCEnet as the integration of warriors, sensors, weapons, networks, and platforms. The CNO, in many public statements, has said that FORCEnet, as an element of Sea Power 21, will exploit emerging new technologies in communications, networking, and other areas, as well as fielded systems, to link the Sea Power 21 warfighting pillars of Sea Strike, Sea Shield, and Sea Basing. The Assistant Secretary of the Navy for Research, Development, and Acquisition (ASN/RDA) requested that the Naval Research Advisory Committee (NRAC) conduct a study of the science and technology (S&T) requirements for FORCEnet. Although the initial goal of the study was to explore the S&T underpinning for FORCEnet, the Panel found it necessary, because of the embryonic state of FORCEnet, to first evaluate the effectiveness of Navy efforts to define the FORCEnet vision and the implementation plans. In this report the Panel reviews the definition of FORCEnet, examines the progress achieved at this early stage, assesses current S&T development relevant to FORCEnet, makes recommendations for technology investment, and proposes a proactive approach to the structure and management of the FORCEnet effort.
High-order quadratures for singular functions and their applications to the evaluation of Fourier and Hankel transforms (1996)

Evaluation of integrals plays an important role in the numerical solution of many problems in physics, engineering, and other areas; hence the interest in the study and design of rapidly convergent quadrature rules. For example, the discrete Fourier transform (DFT) is a popular numerical tool since it provides an excellent approximation to the continuous Fourier transform of a periodic function. The reason for the accuracy of the approximation is that the trapezoidal rule, which the DFT implements, is superalgebraically convergent for periodic functions.
Numerical quadrature schemes for smooth functions are a well understood subject (see, (11), (3), (28)). When a function is singular, the need for a high order quadrature scheme is met by Gaussian quadrature. Unfortunately, the nodes at which a function is tabulated are often non-Gaussian (such as equispaced nodes, Chebyshev nodes, etc.), for which existing quadrature schemes are inadequate.
In this thesis we introduce a class of quadrature formulae applicable to both non-singular and singular functions, generalizing the classical end-point corrected trapezoidal quadrature rules. While the standard end-point corrected trapezoidal rules are usually derived by means of the Euler Maclaurin formula, their generalizations are obtained as solutions of certain systems of linear algebraic equations. A procedure is developed for the construction of very high-order quadrature rules, applicable to functions with apriori specified singularities, and relaxing the requirements on the distribution of nodes.
We also present two applications based on these high-order quadratures. An algorithm is developed for the rapid evaluation of the Fourier transform of functions with singularities. The algorithm is based on a combination of the fast Fourier transform (FFT) with a quadrature scheme tailored to the singularity. A related algorithm for the fast Hankel transform is also presented. The algorithm decomposes the Hankel transform into a product of two integral operators, the first of which is evaluated rapidly by a combination of the fast cosine transform with a quadrature formula of the type developed in this thesis. The second operator is evaluated rapidly by a combination of a version of the fast multipole method with yet another quadrature formula derived in this thesis. All calculations are performed to full double precision accuracy.
Numerical experiments are presented demonstrating the practical usefulness and efficiency of all the algorithms developed. Tables of quadrature weights are included for singularities of the form $s({x})=\vert{x}\vert\sp\lambda$ for a variety of values of $\lambda,$ and s(x) = log$(\vert{x}\vert).$
A SET-hardened phase-locked loop (2017)

A single-event-transient-hardened-by-design (SET-HBD) charge pump (CP) is proposed to improve the reliability of the phase-locked loop (PLL) in SMIC 0.18μm CMOS process. And, the SET-HBD PLL is designed by adopting the proposed SET-HBD CP instead of the traditional CP. Simulation results show that the designed SET-HBD PLL, which is compared with the general PLL (GPLL), has better performances including lower perturbation ΔV <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ctrl</sub> of the control voltage V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ctri</sub> , faster recovery time of the locked PLL and smaller maximum-phase displacement of the feedback clock.
Supplementary Figure 6 from <i>In vivo</i> Imaging of Inflammation- and Tumor-Induced Lymph Node Lymphangiogenesis by Immuno–Positron Emission Tomography (2023)

Supplementary Figure 6 from &lt;i&gt;In vivo&lt;/i&gt; Imaging of Inflammation- and Tumor-Induced Lymph Node Lymphangiogenesis by Immuno–Positron Emission Tomography
Abstract 3108: A novel role for hPygo2 in ribosomal RNA transcription. (2013)

Abstract Background: Several ribosomes are required for each translated messenger RNA. During cell growth and division, a significant proportion of cellular resources are devoted to the production of ribosomes, but the epigenetic mechanisms by which cells adjust to this requirement are not fully understood. We have previously demonstrated that human Pygopus 2 (hPygo2) is highly expressed in, and required for the growth of a number of different cancers. hPygo2 functions as a chromatin remodeling protein through direct association with trimethylated Histone H3 at lysine4 (H3K4me3). It is here that hPygo2 likely serves as an adapter to which histone acetyltransferases can bind and promote further chromatin remodeling events required for transcription. We now present evidence that hPygo2 is involved in chromatin remodeling at the ribosomal (r)RNA promoter during proliferative growth of cancer cells. Methods: Immunoprecipitation (IP) and immunofluorescence (IF) was performed in breast (MCF7), ovarian (SKOV3) and cervical (HeLa) cancer cells. siRNAs were designed to specifically deplete hPygo2. For hPygo2 binding to the ribosomal gene promoter, chromatin IPs were used and analyzed by conventional or quantitative (q) PCR. 47S rRNA expression was measured by qPCR or by pulse-chase with either Br-UTP or 3H-uridine. Cell cycle analysis was performed by flow cytometry. Results: We found that hPygo2 interacted with UBF-1 and Treacle, two nucleolar proteins involved in 47S rRNA transcription. hPygo2 co-localized with UBF-1 and Treacle along with newly synthesized de novo rRNA in the nucleoli of cancer cells. hPygo2 was further detected at the ribosomal gene promoter along with core components of the rDNA transcription complex, including RNA polymerase I. Furthermore, hPygo2 was required for Histone H4 acetylation at the rRNA promoter and for transcription of the 47S pre-rRNA. Depletion of hPygo2 was accompanied by activation of the ribosomal stress response, detected by the binding of ribosomal protein L11 to hdm2, thereby inhibiting its E3 ubiquitin ligase activity resulting in p53 dependent growth arrest. Conclusion: Our results suggest that chromatin remodeling function of hPygo2 may serve to augment or maintain 47S pre-rRNA transcription required for ribosome biogenesis in cancer. Citation Format: Phillip G. P. Andrews, Kenneth R. Kao. A novel role for hPygo2 in ribosomal RNA transcription. [abstract]. In: Proceedings of the 104th Annual Meeting of the American Association for Cancer Research; 2013 Apr 6-10; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2013;73(8 Suppl):Abstract nr 3108. doi:10.1158/1538-7445.AM2013-3108
Modellintegration von Verhaltens- und energetischen Aspekten für mechatronische Module (2010)

Zusammenfassung Im Beitrag wird ein Modellierungsansatz vorgestellt, der das Verhalten (zustandsabhängig) und die energetischen Aspekte automatisierungstechnischer Module integriert. Anhand eines Anwendungsbeispiels wird gezeigt, wie die Modellinformationen zur energieoptimierten Steuerung durch Softwareagenten verwendet werden können.