gebhart/patrepeval huggingface dataset:
Arecibo Pulsar Survey Using ALFA. I. Survey Strategy and First Discoveries (2006)

We report results from the initial stage of a long-term pulsar survey of the Galactic plane using the Arecibo L-band Feed Array (ALFA), a seven-beam receiver operating at 1.4 GHz with 0.3 GHz bandwidth, and fast-dump digital spectrometers. The search targets low Galactic latitudes, jbj P 5 , in the accessible longitude ranges 32 P ' P 77 and 168 P ' P 214 . The instrumentation, data processing, initial survey observations, sensitivity, and database management are described. Data discussed here were collected over a 100 MHz passband centered on 1.42 GHz using a spectrometer that recorded 256 channels every 64 s. Analysis of the data with their full time and frequency resolutions is ongoing. Here we report the results of a preliminary, low-resolution analysis for which the data were decimated to speed up the processing. We have detected 29 previously known pulsars and discovered 11 new ones. One of these, PSR J1928+1746, with a period of 69 ms and a relatively low characteristic age of 82 kyr, is a plausible candidate for association with the unidentified EGRET source 3EG J1928+1733. Another, PSR J1906+07, is a nonrecycled pulsar in a relativistic binary with an orbital period of 3.98 hr. In parallel with the periodicity analysis, we also search the data for isolated dispersed pulses. This technique has resulted in the discovery of PSR J0628+09, an extremely sporadic radio emitter with a spin period of 1.2 s. Simulations we have carried out indicate that $1000 new pulsars will be found in our ALFA survey. In addition to providing a large sample for use in population analyses and for probing the magnetoionic interstellar medium, the survey maximizes the chances of finding rapidly spinning millisecond pulsars and pulsars in compact binary systems. Our search algorithms exploit the multiple data streams from ALFA to discriminate between radio frequency interference and celestial signals, including pulsars and possibly new classes of transient radio sources.
Acceptance towards giving birth to a child with beta-thalassemia major – A prospective study (2017)

Many Chinese pregnant women are ambivalent about giving birth to a baby with beta-thalassemia major. Women with higher educational level or higher family income had a higher acceptance towards the condition.
Quinolactacide, a New Quinolone Insecticide fromPenicillium citrinumThom F 1539 (2005)

By a screening program searching for new pesticides from fungal sources, an insecticidal compound was isolated from Penicillium citrinum F 1539. The compound, named quinolactacide, was novel and showed 88% mortality against green peach aphids (Myzus persicae) at 250 ppm. Its structure was determined by spectroscopic techniques.
Novel Modified Polymers with Permanent Cationic Groups (1999)

Several new polyelectrolytes with regular structure are introduced: block copolymers containing poly(ethylene glycol) and cationic polysoap blocks, amphiphilic block copolymers containing cationic and strong hydrophobic blocks, and polycarboxybetaines with narrow molecular weight distribution. Determination of the molecular weight of the polycarboxybetaines could be performed by SEC. As revealed by viscometry and potentiometric titration, the solution properties of the polyzwitterions depend to a high extent on the steric hindrance of the N+ moiety. Viscometry as well as measurement of the micelle polarity and of the solubilization capacity proved both intra- and intermolecular aggregation to take place with the polysoap block copolymers. Investigations of the micellization of the block copolymers containing strong hydrophobic blocks were followed by application of these polymers as stabilizers in the emulsion polymerization.
Agressividade e divergencia genetica por RAPD de isolados de Colletotrichum gloesporioides coletados em lavouras cafeeiras de Minas Gerais (2007)

A antracnose do cafeeiro tem-se tornado uma importante doença no Brasil nos diversos cafés das diversas regiões. O objetivo deste trabalho foi analisar características sintomatológicas, patogênicas e genético-moleculares de isolados do fungo Colletotrichum gloeosporioides. A diversidade genética de 22 isolados do fungo C. gloeosporioides foi analisada com base em marcadores RAPD. O DNA genômico de cada isolado, coletado em frutos, hastes e folhas de cafeeiros cultivados em diferentes regiões de Minas Gerais foi extraído e amplificado utilizando-se sete oligonucleotídeos. Os produtos de amplificação obtidos com cada primer foram resolvidos em gel de agarose a 1%, fotodocumentados e utilizados para análises de diversidade genética. Foi realizada uma inoculação em plântulas de cafeeiro com um par de folhas e frutos verdes, utilizando-se uma suspensão de cada isolado na concentração de 4 x 106 conídios/mL. O padrão molecular dos isolados foi relacionado com os dados de agressividade em plântulas e frutos verdes das variedades Mundo Novo e Catuaí. Com base em 33 marcadores RAPD polimórficos, gerados por cinco oligonucleotídeos, verificou-se que a maior distância genética entre os isolados foi de 23,6%. Os isolados foram separados em grupos distintos de similaridade genética. Resultados diferenciais da agressividade de oito isolados em plântulas, associados a análise molecular sugerem diferentes espécies e/ou patótipos (raças) de Colletotrichum gloeosporioides patogênicos e apatogênicos em cafeeiros de Minas Gerais.
Energy-Aware Optimal Control of Variable Stiffness Actuated Robots (2019)

Energy-aware motion planning for robotic systems has received increasing attention during recent years, due to environmental and economic reasons. This letter presents a framework for defining and solving different types of optimal control problems for variable stiffness actuated robots. These robots can store and release energy during task execution, but motion planning and control are made difficult by the presence of several physical constraints. In the optimal control problems formulated in this letter, constraints on power and energy are explicitly accounted for, while minimizing energy consumption or maximizing performance. The validity of our approach has been tested on a ball-throwing case study, for which simulation and experimental results are presented and discussed.
Open Problems in Deadlock Control for Flexible Manufacturing Systems by Using Petri Nets (2011)

Deadlocks are a rather undesirable situation in a highly automated flexible manufacturing system. Their occurrences often deteriorate the utilization of resources and may lead to catastrophic results in safety-critical systems. This work surveys the open problems in deadlock control for automated manufacturing systems. The focus is deadlock prevention due to its large and continuing stream of efforts. A control strategy is evaluated in terms of computational complexity, behavioral permissiveness, and structural complexity of its deadlock-free supervisor. This study provides readers with a conglomeration of the open problems in this area and facilitates them in finding a suitable topic for their research.
Phoneme-based word recognition by neural network-a step toward large vocabulary recognition (1990)

A neural-network-based word recognition system extendible to large-vocabulary isolated word recognition is presented. The system consists of (1) time-delay neural networks (TDNNs) for phoneme spotting and (2) a higher-level network and a dynamic programming (DP) time alignment procedure for word recognition. TDNN-based phenome-spotting networks are used whose role is to fire when a particular phenome is input. A higher-level network then improves these phenome firing patterns in view of an idealized phoneme sequence. For training of the higher-level network, DP matching is used to determine idealized phoneme firing patterns which are nearest to the actual phoneme firings. During recognition, the system selects the most probable word by applying DP matching to the outputs of the higher-level network. Speaker-dependent and isolated word recognition experiments show that word recognition rates of around 92% can be achieved for medium-size vocabularies
Platinum metallization for MEMS application (2014)

The adherence of Platinum thin film on Si/SiO 2 wafer was studies using Chromium, Titanium or Alumina (Cr, Ti, Al 2O 3) as interlayer. The adhesion of Pt is a fundamental property in different areas, for example in MEMS devices, which operate at high temperature conditions, as well as in biomedical applications, where the problem of adhesion of a Pt film to the substrate is known as a major challenge in several industrial applications health and in biomedical devices, such as for example in the stents. (1)(-) (4) We investigated the properties of Chromium, Titanium, and Alumina (Cr, Ti, and Al 2O 3) used as adhesion layers of Platinum (Pt) electrode. Thin films of Chromium, Titanium and Alumina were deposited on Silicon/Silicon dioxide (Si/SiO 2) wafer by electron beam. We introduced Al 2O 3 as a new adhesion layer to test the behavior of the Pt film at higher temperature using a ceramic adhesion thin film. Electric behaviors were measured for different annealing temperatures to know the performance for Cr/Pt, Ti/Pt, and Al 2O 3/Pt metallic film in the gas sensor application. All these metal layers showed a good adhesion onto Si/SiO 2 and also good Au wire bondability at room temperature, but for higher temperature than 400 °C the thin Cr/Pt and Ti/Pt films showed poor adhesion due to the atomic inter-diffusion between Platinum and the metal adhesion layers. (5) The proposed Al 2O 3/Pt ceramic-metal layers confirmed a better adherence for the higher temperatures tested.
Direct and Indirect Adaptive Fuzzy Control for a Class of MIMO Nonlinear Systems (2010)

In this chapter, stable direct and indirect adaptive fuzzy controllers for a class of MIMO nonlinear systems with uncertain model dynamics are presented. In the direct scheme, fuzzy systems are used to construct adaptively an unknown ideal controller and their adjustable parameters are updated by using the gradient descent method in order to minimize the error between the unknown controller and the fuzzy controller. In the indirect scheme, the controller design is based on the approximation of the system's unknown nonlinearities by using fuzzy systems. The free parameters of the used fuzzy systems in this case are updated using a gradient descent algorithm that is designed to minimize the identification error between the unknown nonlinearities and their adaptive fuzzy approximations. Both approaches do not require the knowledge of the mathematical model of the plant, guarantee the uniform boundedness of all the signals in the closed-loop system, and ensure the convergence of the tracking errors to a neighbourhood of the origin. Simulation results for direct adaptive control scheme performed on a two-link robot manipulator illustrate the method. Future works will focus on extension of the approach to more general MIMO nonlinear systems and its improvement by introducing a state observer to provide an estimate of the state vector.
Treatment of Arsenite‐Contaminated Water by Electrochemical Advanced Oxidation Processes (2020)

Abstract Arsenite removal from aqueous medium is quite challenging as most of the conventional methods fail to exhibit arsenite removal completely. The present article examines the possibility of electrochemical advanced oxidation processes to remove arsenite from water medium. Anodic oxidation and electro‐Fenton processes failed to remove generated arsenate in the system but found effective to oxidize arsenite completely from its initial concentrations of 1 mg/L and 10 mg/L. Arsenite oxidation is mainly due to in‐situ generated hydrogen peroxide and hydroxyl radicals for anodic oxidation and electro‐Fenton processes. However, peroxicoagulation process was found effective for the oxidation of arsenite as well as removal of arsenic in water. Complete removal of arsenic was observed within 30 min of electrolysis time for pH range in between 3 to 11. Overall, peroxicoagulation is an effective way to remove arsenic from aqueous solution.
Modelling of time reversal for localized tactile feedback on displays (2015)

A study on local haptic feedback on panels by using a limited number of acoustic transducers is presented. Feasibility is discussed to enhance the time reversal (TR) technique [1] towards a virtual model-based calibration instead of an empirical. Reversibility of a structural elastic wave is used to refocus on arbitrary focal points. This enables producing a localized haptic interaction to a fingertip. The contribution includes the theoretical background, a simulation study and its empirical validation.
Silver−polymethylhydrosiloxane nanocomposite coating onanodized aluminum with superhydrophobic and antibacterialproperties (2020)

Biofilm formation on both animate and inanimate surfaces serves as an ideal bacterial reservoir for the spread of nosocomial infections. Designing surfaces with both superhydrophobic and antibacterial properties can help reduce initial bacterial attachment and subsequent biofilm formation. In the present study, a two-step approach is deployed to fabricate silver–polymethylhydrosiloxane (Ag–PMHS) nanocomposites, followed by a simple dip-coating deposition on anodized Al. Ag-nanoparticles (Ag-NPs) are synthesized in situ within a PMHS polymeric matrix. Morphological features of Ag–PMHS coating observed by scanning electron microscopy shows heterogeneous micro–nano-structures. The chemical compositions of these coatings were characterized using X-ray diffraction and attenuated total reflection-Fourier transform infrared spectroscopy, which indicate the presence of a low-energy PMHS polymer. The as-synthesized Ag–PMHS nanocomposite demonstrated excellent antibacterial properties against clinically relevant planktonic bacteria with zone of inhibition values of 25.3 ± 0.5, 24.8 ± 0.5, and 23.3 ± 3.6 mm for Pseudomonas aeruginosa (P.A) (Gram −ve), Escherichia coli (E. coli) (Gram −ve), and Staphylococcus aureus (S.A) (Gram +ve), respectively. The Ag–PMHS nanocomposite coating on anodized Al provides an anti-biofouling property with an adhesion reduction of 99.0, 99.5, and 99.3% for Pseudomomas aeruginosa (P.A), E. coli, and S. aureus (S.A), respectively. Interestingly, the coating maintained a stable contact angle of 158° after 90 days of immersion in saline water (3.5 wt % NaCl, pH 7.4). The Ag–PMHS nanocomposite coating on anodized Al described herein demonstrates excellent antibacterial and anti-biofouling properties owing to its inherent superhydrophobic property.
Evolution of self-oscillating polymer gels as autonomous polymer systems (2014)

We have developed ‘self-oscillating’ gels that undergo spontaneous cyclic swelling–deswelling changes without any on–off switching of external stimuli, as with heart muscle. The self-oscillating gels were designed by utilizing the Belousov–Zhabotinsky (BZ) reaction, an oscillating reaction, as a chemical model of the tricarboxylic acid cycle. We have systematically studied these polymer gels since they were first reported in 1996. Our studies represent innovative research, creating new concepts of functional gels and expanding their potential, and they have attracted attention in many research fields and have inspired related studies. Here, our recent progress on self-oscillating polymer gels is summarized. We developed ‘self-oscillating’ polymer gels that undergo spontaneous cyclic swelling–deswelling changes without any on–off switching of external stimuli like a heart muscle. Here, our recent progress on the self-oscillating polymer gels was summarized. Muscles and other soft tissues in the body experience spontaneous rhythmic changes, such as a heartbeat, hormonal secretion and the cell cycle, without requiring external stimulation. Ryo Yoshida and Takeshi Ueki from the University of Tokyo, Japan, review their team's progress to develop polymer gels that freely undergo cyclic swelling and shrinking. Although tremendous efforts to mimic biological systems have generated numerous synthetic responsive materials for smart tissue engineering and therapeutic applications, these existing systems lack autonomy and depend on induced pH, temperature and other environmental fluctuations to operate. In contrast, the team's gels rely on the oscillating Belousov–Zhabotinsky reaction — a metal-catalyzed oxidation reaction that exhibits spontaneous periodic temporal and spatial patterns. The self-oscillating gels have applications that include biomimetic actuators and tubular intestine-like mass transport systems, providing new perspectives for materials science, robotics and biophysics.
Conical diffraction thin crystal device on full-scene images (2015)

Conical diffraction is an interesting phenomenon that occurs in biaxial crystals. Although the existence of this conical diffraction has been understood for a very long time, it was not until recently that the first applications started to appear, and most of them focus on the manipulation of laser beams. However, the potential use of conical diffraction for all-optical processing in full-scene imaging devices was never addressed. In this article we present a prototype of a general-purpose optical device in order to investigate the applicability of conical diffraction to full-scene imaging. We also show that conical diffraction can obtain the derivative of an image with high resolution. This is the first proof of the theoretical capabilities of conical diffraction in full scenes, and it is just one of its many applications in the field of machine vision.
Pentagonal Bismuth Antiprisms with Endohedral Palladium or Platinum Atoms by Low‐Temperature Syntheses (2016)

We present the syntheses, crystal structures, and properties of five metal‐rich salts containing the Bi 10 4+ pentagonal antiprism with an endohedral palladium or, for the first time, platinum atom. Tetragonal [Pt@Bi 10 ](AlBr 4 ) 4 [ P 4 2 / n at 296(1) K; P 4 at 150(2) K] was obtained by reacting platinum, bismuth, and bismuth tribromide in [BMIm]Br·4.1AlBr 3 at 140 °C (BMIm = 1‐butyl‐3‐methylimidazolium). Monoclinic [Pt@Bi 10 ](AlBr 4 ) 2 (Al 2 Br 7 ) 2 [ P 2 1 / n ] occurs as by‐product. The two corresponding palladium compounds result from the dissolution of Bi 16 PdCl 22 in [BMIm]Br · 4.1AlBr 3 . [Pd@Bi 10 ](AlBr 4 ) 4 [ P 4 2 / n ] adopts a disordered structure homeotypic to its platinum analog. [Pd@Bi 10 ](AlBr 4 ) 2 (Al 2 Br 7 ) 2 [ P 2 1 / n ] is isostructural to [Pt@Bi 10 ](AlBr 4 ) 2 (Al 2 Br 7 ) 2 . In all structures, the [ M @Bi 10 ] 4+ cations are well separated by the bromido‐aluminate anions with inter‐cluster Bi ··· Bi distances longer than 520 pm. This is not the case in [Pd@Bi 10 ][Bi 2 Sn 6 Cl 22 ], which crystallized from a tin‐containing melt of the metals and BiCl 3 . In its monoclinic structure [ P 2 1 / c ], the cluster cations are arranged in chains along [001] with an inter‐cluster distance of only 357 pm. Despite further structural evidence, DFT‐based quantum chemical analysis gave no hint on inter‐cluster bonding. According to the calculated band structure as well as resistivity and magnetic susceptibility measurements, the black compound is a diamagnetic semiconductor.
Golgi Vesicle Proteins Are Linked to the Assembly of an Actin Complex Defined by mAbp1 (2002)

Recent studies indicate that regulation of the actin cytoskeleton is important for protein trafficking, but its precise role is unclear. We have characterized the ARF1-dependent assembly of actin on the Golgi apparatus. Actin recruitment involves Cdc42/Rac and requires the activation of the Arp2/3 complex. Although the actin-binding proteins mAbp1 (SH3p7) and drebrin share sequence homology, they are differentially segregated into two distinct ARF-dependent actin complexes. The binding of Cdc42 and mAbp1, which localize to the Golgi apparatus, but not drebrin, is blocked by occupation of the p23 cargo-protein-binding site on coatomer. Exogenously expressed mAbp1 is mislocalized and inhibits Golgi transport in whole cells. The ability of ARF, vesicle-coat proteins, and cargo to direct the assembly of cytoskeletal structures helps explain how only a handful of vesicle types can mediate the numerous trafficking steps in the cell.
Efficient Conjugation of Oligosaccharides to Polymer Particles through Furan/Maleimide Diels–Alder Reaction: Application to the Capture of Carbohydrate‐Binding Proteins (2016)

Glycan-protein interactions play a crucial role in physiological and pathological events. Hence, improving the isolation of carbohydrate-binding proteins (i.e., lectins and anti-glycan antibodies) from complex media might not only lead to a better understanding of their function, but also provide solutions for public health issues, such as water contamination or the need for universal blood plasma. Here we report a rapid and efficient method for producing carbohydrate-based affinity adsorbents combining enzymatic synthesis and metal-free click chemistry. Both simple and complex glycans (maltose, blood group antigens A, B, and H) were readily modified by the addition of a furyl group at the reducing end without the need for protecting groups and were then efficiently conjugated to maleimide-activated Sepharose particles through Diels-Alder cycloaddition. These neoglycoconjugates showed high efficiency for the purification of lectins (concanavalin A and Ulex europaeus agglutinin), as well as for the capture of anti-A and anti-B blood group antibodies, opening new prospects for glycoproteomics and for the development of universal blood plasma.
A novel method for calculating the structure of small-molecule chains on polymeric templates (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA novel method for calculating the structure of small-molecule chains on polymeric templatesR. P. Scaringe and S. PerezCite this: J. Phys. Chem. 1987, 91, 9, 2394–2403Publication Date (Print):April 1, 1987Publication History Published online1 May 2002Published inissue 1 April 1987https://pubs.acs.org/doi/10.1021/j100293a039https://doi.org/10.1021/j100293a039research-articleACS PublicationsRequest reuse permissionsArticle Views43Altmetric-Citations24LEARN 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 options Get e-Alerts