gebhart/patrepeval huggingface dataset:
Magnetic and transport properties of the itinerant electron system Hf1−<i>x</i>Ta<i>x</i>Fe2 (1997)

Magnetization and resistivity measurements of poly- and single-crystalline samples of Hf1−xTaxFe2 are presented. At the antiferromagnetic to ferromagnetic transition we find a large change of resistance which can be induced as a function of temperature as well as field. For single-crystalline Hf0.86Ta0.14Fe2 we observe at room temperature a giant magnetoresistance effect of 6%. From neutron-powder-diffraction measurements, possible magnetic structures in the different magnetic states are constructed.
Robust Authenticated-Encryption: AEZ and the Problem that it Solves. (2014)

Abstract. With a scheme for robust authenticated-encryption a user can select an arbitrary value λ ≥ 0 and then encrypt a plaintext of any length into a ciphertext that’s λ characters longer. The scheme must provide all the privacy and authenticity possible for the requested λ. We formalize and investigate this idea, and construct a well-optimized solution, AEZ, from the AES round function. Our scheme encrypts strings at almost the same rate as OCB-AES or CTR-AES (on Haswell, AEZ has a peak speed of about 0.7 cpb). To accomplish this we employ an approach we call accelerated provable security: the scheme is designed and proven secure in the provable-security tradition, but, to improve speed, one instantiates by scaling down most instances of the underlying primitive. Keywords:AEZ, arbitrary-input blockciphers, authenticated encryption, robust AE, misuse resistance,
Effects of Steep Time and SO2 Concentration on Steepwater Profiles and Maize Milling Yields Using a Continuous Countercurrent Steep System (1999)

Effects of SO2 concentration and steep time on maize steep profiles and wet milling results were studied using a continuous countercurrent steep system. Maize was steeped at 50 ± 2 °C at different SO2 concentrations (target value at 1,000, 2,000 and 3,000 ppm) for different lengths of time (18, 24, 30 and 36 h). Steepwater profiles, including pH, SO2 concentration, total acidity and steepwater solids content versus tank number for each combination of SO2 level and steep time were generated. Three steeped maize samples for each condition were milled and average product yields were reported. Steeping, from the perspective of maize, can be viewed as a three-stage process including a lactic acid dominated stage, a SO2 absorption stage and a SO2 diffusion stage. From the perspective of steepwater, increasing SO2 concentration increases the total dry solids increase rate and SO2 decrease rate. Starch yield can be significantly increased by increasing either steep time or SO2 concentration.
Comparison of BCH and convolutional codes in a direct sequence spread spectrum multiple access packet radio network (2002)

The authors compute an upper bound on the packet error probability induced in a direct-sequence spread-spectrum multiple access packet radio network when convolutional or BCH codes are used for the encoding of the packets. More specifically, an upper bound on the bit error probability is first developed. Then, this upper bound is used to compute upper bounds on the packet error probability for BCH codes. For convolutional codes, a simulator package has been built that makes it possible to compute upper bounds on the packet error probability by utilizing, as in the case of BCH codes, only the upper bound on the bit error probability. The simulator permits the user to enter such parameters as the constraint length, bit error probability, and decode depth of the utilized Viterbi decoder. At the end of its run the simulator produces the number and the specific positions of the bits that remained uncorrected by the Viterbi decoder from which the packet error probability can be determined.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Immunoturbidimetry of albumin and immunoglobulin G in urine. (1982)

I describe a rapid, sensitive immunoturbidimetric assay for measuring urinary albumin and immunoglobulin G with use of an automated spectrophotometer. Diluted urine samples and polyethylene glycol in phosphate-buffered saline are pipetted into the cuvettes of the spectrophotometer. The initial absorbances of the samples are measured at 340 nm; antiserum to albumin or to immunoglobulin G is added to each tube, and after 2 min at 37 degrees C the absorbance of the mixtures is read at 340 nm. The initial blank absorbances of the samples are subtracted from the final absorbances automatically. The change in absorbance is linear with concentration in the range of 5-400 mg/L for albumin and 3-1000 mg/L for IgG. The lower limit of the determination is 5 mg/L for albumin, 3 mg/L for IgG. Linear correlations were observed between the concentrations of albumin and immunoglobulin G determined by this method (x) and those determined by radial immunodiffusion (y). The regression equation for albumin was y = 0.84x + 0.03 (r = 0.99, n = 87), and for IgG y = 0.94x + 0.02 (r = 0.98, n = 87).
Background music recommendation for video based on multimodal latent semantic analysis (2013)

Automatic video editing is receiving increasingly attention as the digital camera technology develops further and social media sites such as YouTube and Flickr become popular. Background music selection is one of the key elements to make the generated video attractive. In this work, we propose a framework for background music recommendation based on multi-modal latent semantic analysis between video and music. The videos and accompanied background music are collected from YouTube, and the videos with low musicality are filtered out by musicality detection algorithm. The co-occurrence relationships between audiovisual features are derived for multi-modal latent semantic analysis. Then, given a video, a ranked list of recommended music can be derived from the correlation model. In addition, we propose an algorithm for music beat and video shot alignment to calculate the alignability of recommended music and video. The final recommendation list is the combined result of both content correlation and alignability. Experiments show that the proposed method achieves a promising result.
Development of Reduced-Order Models for Aeroelastic Analysis and Flutter Prediction Using the CFL3Dv6.0 Code (2002)

A reduced-order model (ROM) is developed for aeroelastic analysis using the CFL3D version 6.0 computational fluid dynamics (CFD) code, recently developed at the NASA Langley Research Center. This latest version of the flow solver includes a deforming mesh capability, a modal structural definition for nonlinear aeroelastic analyses, and a parallelization capability that provides a significant increase in computational efficiency. Flutter results for the AGARD 445.6 Wing computed using CFL3D v6.0 are presented, including discussion of associated computational costs. Modal impulse responses of the unsteady aerodynamic system are then computed using the CFL3Dv6 code and transformed into state-space form. Important numerical issues associated with the computation of the impulse responses are presented. The unsteady aerodynamic state-space ROM is then combined with a state-space model of the structure to create an aeroelastic simulation using the MATLAB/SIMULINK environment. The MATLAB/SIMULINK ROM is used to rapidly compute aeroelastic transients including flutter. The ROM shows excellent agreement with the aeroelastic analyses computed using the CFL3Dv6.0 code directly.
Redacting Private and Sensitive Information in Born-Digital Collections (2015)

Redaction of personal, private, and sensitive information from born-digital materials is increasingly important for repositories. Collection sizes are often too large to process without automation – the assistance of software designed specifically to identify and classify such information and present it in a format that facilitates redaction decisions. Distinguishing between items that may be redacted automatically and those that require manual intervention is similarly important. This paper examines the identification, organization, and redaction of private and sensitive information identified within born-digital materials, particularly those contained on disk images extracted from fixed and removable media carriers. We identify specific items of interest in file systems and individual file formats that may be targets for redaction, and present two approaches to managing and providing access to redacted materials using open source tools developed for the BitCurator Access project (bca-webtools) along with supporting digital forensics software.
Zn Based Metal Organic Framework as Adsorbent Material for Mecoprop (2013)

Metal organic framework, a new class of hybrid materials is now involved in a number of applications based on size and distribution pattern of its pores. Present research focus on Mecoprop adsorbent capacity of Basolite, a zinc based metal organic framework. Basolite (C8H12N4Zn) having a pore width 11.6Å and pore aperture 3.4Å has been used here for entrapping Mecoprop a commonly used pesticide which has very high mobility and a common contaminant for aquatic systems. Due to a very high surface area i.e 1300-1800 m2/gm of basolite and specific pore size it is found to be very efficient for adsorption purpose and another important property of Basolite is that it gets reactivated at 100oC so can be used again and again. Adsorption of pesticide by Basolite column was confirmed by UV Visible spectroscopy. The study revealed that Basolite adsorb Mecoprop due to entrapment of Mecoprop inside its pores. Basolite can be used for preparing filters on large scale for removing harmful pesticide from aquatic systems.
Correction: Identification of DSB-1, a Protein Required for Initiation of Meiotic Recombination in Caenorhabditis elegans, Illuminates a Crossover Assurance Checkpoint (2013)

Meiotic recombination, an essential aspect of sexual reproduction, is initiated by programmed DNA double-strand breaks (DSBs). DSBs are catalyzed by the widely-conserved Spo11 enzyme; however, the activity of Spo11 is regulated by additional factors that are poorly conserved through evolution. To expand our understanding of meiotic regulation, we have characterized a novel gene, dsb-1, that is specifically required for meiotic DSB formation in the nematode Caenorhabditis elegans. DSB-1 localizes to chromosomes during early meiotic prophase, coincident with the timing of DSB formation. DSB-1 also promotes normal protein levels and chromosome localization of DSB-2, a paralogous protein that plays a related role in initiating recombination. Mutations that disrupt crossover formation result in prolonged DSB-1 association with chromosomes, suggesting that nuclei may remain in a DSB-permissive state. Extended DSB-1 localization is seen even in mutants with defects in early recombination steps, including spo-11, suggesting that the absence of crossover precursors triggers the extension. Strikingly, failure to form a crossover precursor on a single chromosome pair is sufficient to extend the localization of DSB-1 on all chromosomes in the same nucleus. Based on these observations we propose a model for crossover assurance that acts through DSB-1 to maintain a DSB-permissive state until all chromosome pairs acquire crossover precursors. This work identifies a novel component of the DSB machinery in C. elegans, and sheds light on an important pathway that regulates DSB formation for crossover assurance.
Direct assembly synthesis of metal complex–semiconductor hybrid photocatalysts anchored by phosphonate for highly efficient CO2 reduction (2011)

Hybrid photocatalysts consisting of a ruthenium complex and p-type photoactive N-doped Ta(2)O(5) anchored with an organic group were successfully synthesized by a direct assembly method. The photocatalyst anchored by phosphonate exhibited excellent photoconversion activity of CO(2) to formic acid under visible-light irradiation with respect to the reaction rate and stability.
Power consumption in CMOS combinational logic blocks at high frequencies (2002)

A new model for estimating dynamic power dissipation in CMOS combinational circuits at differing voltages is presented. The proposed model deals with power dissipation of circuits at saturation frequencies, where the output voltage does not reach 100% of the supply voltage and the output voltage waveform is almost a triangular waveform. We show that the dynamic power consumption at saturation frequencies is only dependent on the supply voltage, and is independent of load capacitance and switching speed. This model shows that when a circuit is working in the saturation frequency range, as the frequency is increased, the performance/power ratio is increased. However, this increase in performance/power ratio is at the expense of noise margin. The model is theoretically and empirically shown to be correct. This model can be used to design a system where the differing combinational logic blocks are supplied with differing voltages. Such a system would consume lower power than if the system was supplied by a single voltage rail.
Direct-Drive Robots (1987)

This book describes the design concept and discusses the control issues related to the performance of a direct-drive robot, specifically, a direct-drive mechanical arm capable of carrying up to 10 kilograms, at 10 meters per second, accelerating at 5 G (a unit of acceleration equal to the acceleration of gravity). These are remarkable achievements compared to current industrial robots that move with speeds on the order of 1 meter per second. Direct-Drive Robot presents the most current research in manipulator design and control, emphasizing the high-performance direct-drive robot arm in which the shafts of articulated joints are directly coupled to the rotors of motors with high torque. It describes fundamental technologies of key components such as motors, amplifiers and sensors, arm linkage design, and control system design, and makes significant contributions in the areas of power efficiency analysis, dynamic mass balancing, and decoupling theory. The book provides a good balance between theory and practice, covering the practical design and implementation of this special robot as well as the theoretical design tools. Contents Part I: Direct-Drive Technologies • Introduction • Components • Part II: Arm Design Theory • Power Efficiency • Arm Design for Simplified Dynamics • Actuator Relocation • Design of Decoupled Arm Structures • Part III: Development of the MIT Arm • Mechanisms • Control Systems • Part IV: Selected Papers on Direct-Drive Robot Design and Control
The Platinum Metals. (1943)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Platinum Metals.Raleigh. GilchristCite this: Chem. Rev. 1943, 32, 3, 277–372Publication Date (Print):June 1, 1943Publication History Published online1 May 2002Published inissue 1 June 1943https://pubs.acs.org/doi/10.1021/cr60103a002https://doi.org/10.1021/cr60103a002research-articleACS PublicationsRequest reuse permissionsArticle Views1003Altmetric-Citations33LEARN 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
Saccadic Eye Movements in Parkinson's Disease: I. Delayed Saccades (1992)

The saccadic eye movements of nine patients with Parkinson's disease were compared to those of nine age-matched controls in two paradigms generating volitional saccades. In both paradigms, subjects had to make delayed saccades to peripheral LED targets: a peripheral target appeared 700 msec before a buzzer sounded, the buzzer being the signal to make a saccade to the target. In the first paradigm ("centre-off"), the fixation target was extinguished simultaneously with buzzer onset. In the second ("centre-remain") it was not extinguished until 1000 msec later. The results showed that for outward saccades in both paradigms, there was no difference between Parkinsonian patients and controls, but saccadic latencies were significantly shorter in the "centre-remain" paradigm. The initial outward saccades were indistinguishable from the normal, reflex saccades of the same subjects. However, saccades returning to the centre (a type of remembered target saccade) were hypometric and showed multistepping. Both effects were more pronounced in patients with Parkinson's disease. The significance of these findings in terms of current hypotheses about the nature of the Parkinsonian saccadic deficit is discussed.
gem-Difluorosteroids (1961)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTgem-DifluorosteroidsJACK TADANIER and WAYNE COLECite this: J. Org. Chem. 1961, 26, 7, 2436–2440Publication Date (Print):July 1, 1961Publication History Published online1 May 2002Published inissue 1 July 1961https://doi.org/10.1021/jo01351a067RIGHTS & PERMISSIONSArticle Views57Altmetric-Citations16LEARN 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 (559 KB) Get e-Alerts Get e-Alerts
Alkylsulfanyl-1,2,4-triazoles, a New Class of Allosteric Valosine Containing Protein Inhibitors. Synthesis and Structure–Activity Relationships (2012)

Valosine containing protein (VCP), also known as p97, is a member of AAA ATPase family that is involved in several biological processes and plays a central role in the ubiquitin-mediated degradation of misfolded proteins. VCP is an ubiquitously expressed, highly abundant protein and has been found overexpressed in many tumor types, sometimes associated with poor prognosis. In this respect, VCP has recently received a great deal of attention as a potential new target for cancer therapy. In this paper, the discovery and structure-activity relationships of alkylsulfanyl-1,2,4-triazoles, a new class of potent, allosteric VCP inhibitors, are described. Medicinal chemistry manipulation of compound 1, identified via HTS, led to the discovery of potent and selective inhibitors with submicromolar activity in cells and clear mechanism of action at consistent doses. This represents a first step toward a new class of potential anticancer agents.
Predominance of six different hexanucleotide recoding signals 3' of read-through stop codons (2002)

Redefinition of UAG, UAA and UGA to specify a standard amino acid occurs in response to recoding signals present in a minority of mRNAs. This 'read-through' is in competition with termination and is utilized for gene expression. One of the recoding signals known to stimulate read-through is a hexanucleotide sequence of the form CARYYA 3' adjacent to the stop codon. The present work finds that of the 91 unique viral sequences annotated as read-through, 90% had one of six of the 64 possible codons immediately 3' of the read-through stop codon. The relative efficiency of these read-through contexts in mammalian tissue culture cells has been determined using a dual luciferase fusion reporter. The relative importance of the identity of several individual nucleotides in the different hexanucleotides is complex.
Information-Flow Control for Programming on Encrypted Data (2012)

Using homomorphic encryption and secure multiparty computation, cloud servers may perform regularly structured computation on encrypted data, without access to decryption keys. However, prior approaches for programming on encrypted data involve restrictive models such as boolean circuits, or standard languages that do not guarantee secure execution of all expressible programs. We present an expressive core language for secure cloud computing, with primitive types, conditionals, standard functional features, mutable state, and a secrecy preserving form of general recursion. This language, which uses an augmented information-flow type system to prevent control-flow leakage, allows programs to be developed and tested using conventional means, then exported to a variety of secure cloud execution platforms, dramatically reducing the amount of specialized knowledge needed to write secure code. We present a Haskell-based implementation and prove that cloud implementations based on secret sharing, homomorphic encryption, or other alternatives satisfying our general definition meet precise security requirements.
Nonlinear dynamic system identification using artificial neural networks (ANNs) (1990)

A recurrent multilayer perceptron (MLP) network topology is used in the identification of nonlinear dynamic systems from only the input/output measurements. This effort is part of a research program devoted to developing real-time diagnostics and predictive control techniques for large-scale complex nonlinear dynamic systems. The identification is performed in the discrete-time domain, with the learning algorithm being a modified form of the back-propagation (BP) rule. The recurrent dynamic network (RDN) developed is used for the identification of a simple power plant boiler with known nonlinear behavior. Results indicate that the RDN can reproduce the nonlinear response of the boiler while keeping the number of nodes roughly equal to the relative order of the system. A number of issues are identified regarding the behavior of the RDN which are unresolved and require further research. Use of the recurrent MLP structure with a variety of different learning algorithms may prove useful in utilizing artificial neural networks for recognition, classification, and prediction of dynamic patterns