gebhart/patrepeval huggingface dataset:
The Study of Corrosion Behavior of Laser Induced Surface Improvement (LISI) on Steel and Aluminum Substrates (1999)

Abstract Laser Induced Surface Improvement (LISI) is a new process developed by University of Tennessee Space Institute (UTSI) which employs lasers to melt precursor coatings and portions of the substrate to form a durable corrosion resistant surface. The LISI surface can be tailored to yield a composition that provides minimum impact to the base substrate material while giving good corrosion characteristics. The LISI surface treatment of tungsten carbide was applied on 7075 and 6061 aluminum alloys. The LISI treatment uses a chromium/nickel mixture and a stainless steel type mixture (pseudo stainless steel of 18 wt% chromium, 8 wt% nickel and a trace amount of manganese and silicon) on steel alloy 1010. The corrosion characteristics of these samples were determined in 3.5 wt% NaCl aqueous solution using linear polarization resistance technique. Potentiodynamic scans were run to determine the corrosion rates and optical microscopy was used to examine pitting characteristics of the different surface coatings. The effectiveness of the LISI modified surfaces to protect both steel and aluminum substrates is discussed.
Nonlinear Optical Properties Of A New Organic Crystal: 4-Br-4'-Methoxychalcone (1990)

A study of crystal growth and characterization of a nonlinear organic material, 4-Br-4&apos;-Methoxychalcone is presented. Its linear and nonlinear optical properties have been investigated. The collinear and the noncollinear phase matched second harmonic generation were demonstrated.
Neural network application for flux and speed estimation in the sensorless induction motor drive (2002)

Sensorless field-oriented control (SFOC) of induction motor drives requires the knowledge of instantaneous magnitude and position of the rotor flux as well as the rotor speed. This paper deals with the application of artificial neural networks (ANN) for estimation of the rotor flux vector and motor speed on the basis of phase current measurement only. Various structures of the neural estimators were simulated and their performances were compared. The influence of changing rotor parameters during the drive were tested. The neural network is able to estimate accurately the rotor flux and speed during line-start operation and load torque changes of the motor. The results of simulation experiments indicate that the neural network estimator may be a feasible alternative to other flux and speed estimation methods.
Dynamic continuum arm model for use with underwater robotic manipulators inspired by octopus vulgaris (2012)

Continuum structures with a very high or infinite number of degrees of freedom (DOF) are very interesting structures in nature. Mimicking this kind of structures artificially is challenging due to the high number of required DOF. This paper presents a kinematic and dynamic model for an underwater robotic manipulator inspired by Octopus vulgaris. Then, a prototype arm inspired by live octopus is presented and the model validated experimentally. Initial comparisons of simulated and experimental results show good agreement.
Edaravone (MCI-186) for the Treatment of Amyotrophic Lateral Sclerosis (ALS): A Posthoc Analysis of Amyotrophic Lateral Sclerosis Functional Rating Scale–Revised (ALSFRS-R) by Domain and Individual Items (P3.130) (2017)

Posthoc assessment of the putative descriptive effect of edaravone (MCI-186) upon the 4 domains of the ALSFRS-R and its individual scale items.
Preparation of a heteroepitaxial LaxSryMnzO3/BiFeO3 bilayer by r.f. magnetron sputtering with various oxygen gas flow ratios (2014)

BiFeO3 (BFO) and LaxSryMnzO3 (LSMO) films were epitaxially grown on SrTiO3 (100) substrates by r.f. magnetron sputtering with various oxygen gas flow ratios (FO2). Compositional ratios of each atom in both of BFO and LSMO could be controlled kept to around 10 at.% by changing FO2. Adjusting the compositional ratio to La0.35Sr0.15Mn0.5O3 not only increase Tc of LSMO but also produces sufficient oxygen to form a perovskite lattice. For an LSMO/BFO heterostructure, detailed observation by cross sectional transmission electron microscopy (TEM) revealed that the lattice of rhombohedral (SG: R-3c) LSMO was shrank by a clamping effect from the SrTiO3 substrates, and then the BFO was grown in two layers: (i) an interfacial BFO layer (7 nm thick) with evenly shrunk a-axis and c-axis, and (ii) an upper BFO layer (25 nm thick) expanded along the c-axis. Neither misfit strain nor dislocations appeared at the interface between the shrunken BFO and LSMO layers, and these heterostructures did not show exchange bias. These results suggest that BFO is suitable for a tunneling barrier combine with LSMO electrode.
Learning State Selection for Reconfigurable Antennas: A Multi-Armed Bandit Approach (2013)

Reconfigurable antennas are capable of dynamically re-shaping their radiation patterns in response to the needs of a wireless link or a network. In order to utilize the benefits of reconfigurable antennas, selecting an optimal antenna state for communication is essential and depends on the availability of full channel state information for all the available antenna states. We consider the problem of reconfigurable antenna state selection in a single user MIMO system. We first formulate the state selection as a multi-armed bandit problem that aims to optimize arbitrary link quality metrics. We then show that by using online learning under a multi-armed bandit framework, a sequential decision policy can be employed to learn optimal antenna states without instantaneous full CSI and without a priori knowledge of wireless channel statistics. Our objective is to devise an adaptive state selection technique when the channels corresponding to all the states are not directly observable and compare our results against the case of a known model or genie with full information. We evaluate the performance of the proposed antenna state selection technique by identifying key link quality metrics and using measured channels in a 2 × 2 MIMO OFDM system. We show that the proposed technique maximizes long term link performance with reduced channel training frequency.
Drug Induced Long QT (2013)

A 54 years old cattle-farm owner was found un-conscious by his daughter at his living room. After she repeatedly shook his body, he regained consciousness without any impairment. He told his daughter that before collapse he suddenly felt weakness all over his body, a bit lightheaded and a brief period of palpitation. On the next day he experienced the same symptom, and this time he fainted at the farm. He was rushed to 24-hour infirmary, but he recovered before reaching the clinic. He afterwards was seen by a doctor and was told to have a mild stroke. He was referred to emergency department at a nearby hospital where he passed out for the third time; but this time was witnessed by his daughter. She noted that before he fell down, he was having a short period of seizure. A neurologist was among the first physician who saw him and noticed that the patient had a very slow pulse. He accordingly consulted the patient to cardiologist due to bradycardia.
Outcomes in Hypertensive Black and Nonblack Patients Treated With Chlorthalidone, Amlodipine, and Lisinopril (2005)

In blacks and nonblack subgroups, rates were not lower in the amlodipine or lisinopril groups than in the chlorthalidone group for either the primary CHD or any other prespecified clinical outcome, and diuretic-based treatment resulted in the lowest risk of heart failure. While the improved outcomes with chlorthalidone were more pronounced for some outcomes in blacks than in nonblacks, thiazide-type diuretics remain the drugs of choice for initial therapy of hypertension in both black and nonblack hypertensive patients.
Synthesis, Structures, and Polymerization Catalytic Properties of Doubly Bridged Bis(cyclopentadienyl) Dinuclear (μ-Oxo)titanium Complexes (2009)

The doubly bridged dinuclear (μ-oxo)titanium complex (Me2C)(Me2Si)(C5H3)2(μ-O)(CpTiCl)2 (1) was synthesized by the reaction of the lithium compound of the doubly bridged bis(cyclopentadienyl) ligand with (CpTiCl2)2O. Treatment of 1 with concentrated HCl or HBr gave the corresponding Cp-decoordinated products (Me2C)(Me2Si)(C5H3)2[CpTiX(μ-O)TiX2] (X = Cl (2), Br (3)). All these titanium complexes were characterized by 1H NMR, 13C NMR, MS spectra, and elemental analysis. The crystal structures of (CpTiCl2)2O, 1, and 3 were determined by X-ray diffraction. Their catalytic properties for ethylene polymerization were also studied in the presence of MAO.
Quelques observations sur les lacunes en droit international public (1968)

info:eu-repo/semantics/published
Self-reinforced optical stability formed by unseeded four-wave mixing with two pump beams in atomic vapor (2019)

We demonstrate unseeded multimode four-wave mixing wherein each created photon is correlated to exactly two others, resulting in an “optimal” four-mode output. The generated beams are spatially separated, readily allowing for use in quantum communications.
Use of Essential Oils From Various Plants to Change the Fatty Acids Profiles of Lipids Obtained From Oleaginous Yeasts (2018)

Abstract We studied the ability of seven essential oils to alter the fatty acid composition of lipids produced by an oleaginous yeast Rhodosporidium toruloides . All of the essential oils, except thyme, significantly increased the stearic acid content of the lipids. The amount of essential oils in the media determined the fatty acid composition obtained. Subsequently, we studied the effect of the major monoterpenes present in these essential oils. When R. toruloides was grown on limonene, a major monoterpene in orange essential oil, the composition of lipid obtained was found to be quite similar to natural orange essential oil. This proved that limonene has a major role in the changes in fatty acid profiles of the lipids. The effect of orange essential oil on another oleaginous yeast, Cryptococcus curvatus , was also carried out. Although the effect of the essential oil on the fatty acid composition and biomass (cell mass) was similar for both these two yeasts, the reduction of the activity of some enzymes involved in the metabolic pathways was quite different. From these results, it can be concluded that the effect of essential oils differs with species and it is possible to produce lipids with alternate fatty acid profiles suitable for different applications and with good market value.
Non-Classical Hydrothermal Synthesis of Hexagonal Sodium Yttrium Fluoride Nanowires (2019)

Sodium yttrium fluoride (NaYF4) is an upconverting material with many potential uses in chemistry, materials science, and biology that can be synthesized hydrothermally in both cubic (α) and hexagonal (β) crystallographic polymorphs. Understanding the mechanisms underlying the phase conversion between the cubic and hexagonal polymorphs is of great interest to help inform future efforts to synthesize atomically-precise quantum materials with well-defined sizes and morphologies. In this work, we use a combination of analytical and cryogenic transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), powder X-ray diffraction (XRD), in situ liquid cell TEM, atom probe tomography (APT), and extended x-ray absorption fine structure (EXAFS) measurements to show evidence suggesting that the hexagonal NaYF4 nanowires form through a non-classical crystal growth mechanism involving oriented attachment of grains of the cubic (α) phase. EXAFS spectroscopy also suggests that substitutional Yb3+ point defects within NaYF4 are distributed evenly throughout the crystal lattice without clustering, and also that they selectively substitute into one of the two possible trivalent yttrium sites in the unit cell.
Experimental Validation of a Preclinical SPECT/MR Insert (2017)

The experimental characterization of a SiPM-based 10-module SPECT gamma imager suitable for insertion and operation inside unmodified MR scanners for simultaneous (and potentially multi-tracer) preclinical imaging is presented. The design challenges, here fulfilled, such as compactness while granting proper cooling, mutual compatibility and resilience to high (3-7 T) magnetic fields inside the bore, suitable energetic (better than 14% at 140 keV) and spatial resolution (better than 1 mm) are discussed. The carefully optimized detection module, featuring a 5 × 5 cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> CsI(Tl) scintillator coupled to arrays of SiPM conditioned by a 36-channel ASIC, and the digital daisy chain infrastructure are the basis for the realization of a larger (20-module ring) clinical insert. Moreover, planar image reconstruction based on advanced statistical approaches such as maximum likelihood and iteratively estimated light response function is reported.
Use of pulsed-field gel electrophoresis for epidemiological study of Escherichia coli O157:H7 during a food-borne outbreak (1995)

Food and patient isolates from an Escherichia coli O157:H7 outbreak associated with undercooked ground beef were characterized by pulsed-field gel electrophoresis and Shiga-like toxin genotype. Pulsed-field gel electrophoresis confirmed the epidemiologically implicated source of the two-state outbreak and differentiated between outbreak and sporadic strains.
Mean-Square Amplitudes and Force Constants of Tetrahedral Molecules. II. Silicon Tetrachloride (1965)

Abstract The atomic distances and the mean-square amplitudes of silicon tetrachloride have been determined by the sector-microphotometer method. The possible sources of experimental errors have been thoroughly examined. The quadratic force constants of the potential function have been determined by the use of the mean-square amplitudes thus obtained, by combining them with the vibrational frequencies obtained from the Raman spectrum in the gaseous state. It has been shown that the errors of the force constants originate from those of the mean-square amplitudes by the same order of magnitude as from those of the frequencies.
Learning to Form Visual Chunks: On the Structure of Visuo-Spatial Working Memory (2022)

We are interested in a functional account of how capacity constrains memory use in natural, ongoing behaviors, and in how visual memory demands can be reduced through the use of what we have called perceptual pointers, or deictic codes. Here, we ask whether, with experience, participants can restructure task representations such that single fixations can point to more and more complex chunks of information. We tracked eye movements as participants copied simple model patterns which were presented with different frequencies. At first, participants made multiple fixations to individual pattern components. As patterns were presented repeatedly, model inspections were reduced substantially. This suggests that participants formed more compact representations of the patterns with experience, allowing single fixations to point to larger chunks of information. We also propose that deictic codes provide a short-term store analogous to the visuo-spatial scratchpad or articulatory loop. When the task was structured such that a separate visual search was required for each model component, much less learning was observed than when fixations to known locations were required, suggesting deictic codes were disrupted by active visual search.
Precise method for measuring Xd and Xq based on slip test of synchronous machines (2002)

An experimental method for measuring the direct and quadrature axis synchronous reactances of polyphase synchronous machines with salient pole is developed. It is based on a measuring method of the slip test. It can be applied to all synchronous machines, but primarily it has been developed and demonstrated for reluctance motors. A precise measuring method was derived by the use of the tensor analysis method, and was introduced to minimize measurement errors due to the stator resistance (Rs) as well as machine losses. Detailed results are presented for a reluctance motor with a highly variable Rs. Correlation with other methods is quite good. The effects of Rs are observed in the tested motor.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Novel interactions of CLN5 support molecular networking between Neuronal Ceroid Lipofuscinosis proteins (2009)

We have described novel interactions between CLN5 and several NCL proteins, suggesting a modifying role for these proteins in the pathogenesis of individual NCL disorders. Among these novel interactions, binding of CLN5 to CLN1/PPT1 is suggested to be the most significant one, since over-expression of PPT1 was shown to influence on the intracellular trafficking of mutated CLN5, and they were shown to share a binding partner outside the NCL protein spectrum.
ChemInform Abstract: Nucleoside Phosphate Sugars: Syntheses on Practical Scales for Use as Reagents in the Enzymatic Preparation of Oligosaccharides and Glycoconjugates (1992)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
A molecular, morphometric and mechanical comparison of the structural elements of byssus fromMytilus edulisandMytilus galloprovincialis (2002)

Marine mussels are renowned for their ability to produce an extra-organismic tendon-like structure that can withstand the wave forces associated with the intertidal habitat. Initial characterization of byssal properties has focused on Mytilus edulis, with few detailed comparisons with other mussels. M. galloprovincialis, a closely related species, provides an opportunity for a thorough comparison. Three full-length cDNA clones encoding the byssal collagens, precollagen D (preCol-D), preCol-NG and preCol-P, were isolated from M. galloprovincialis. Comparisons with M. edulis preCol-D, preCol-NG and preCol-P reveal a 91.3 %, 88.6 % and 90.1 % identity with the cDNA and an 89.0 %, 88.1 % and 89.0 % identity with the deduced protein sequences, respectively. Key elements are maintained between the species: in particular, modeled bends in the collagen helix due to breaks in the Gly-X-Y pattern and the location of cysteine and putative 3,4-dihydroxyphenylalanine (DOPA) residues. A potentially important difference between the two is that, in all cases, M. galloprovincialis byssal collagens contain additional histidine residues in their flanking domains. The significance of this may lie in the ability of M. galloprovincialis to utilize more metal chelate cross-links, which have been implicated in byssal thread stability. M. edulis threads are typically twice the length and diameter of M. galloprovincialis threads and appear to contain nearly 10 % more collagen. These differences are maintained even when the different thread portions are compared. Despite differences in a number of parameters, most notably that whole M. galloprovincialis threads are stiffer, threads whether whole or separated into proximal and distal portions, have similar mechanical behaviors. It is apparent from this comparison that M. galloprovincialis and M. edulis are seemingly interchangeable models for byssal research.
Association between Quadriceps Strength and Self-Reported Physical Activity in Individuals with Knee Osteoarthritis (2019)

Limited quadriceps strength is common with knee osteoarthritis (OA) and may lead to activity avoidance and low physical activity (PA) levels. PURPOSE: To investigate the association between quadriceps strength and self-reported PA in individuals with knee OA. Secondary analyses evaluated the association between a change (Δ) in quadriceps strength and self-reported PA following a 4-week physical therapy intervention designed to improve lower extremity strength. METHODS: Ninety individuals with radiographic knee OA were enrolled in the current study (43% male; Kellgren-Lawrence grade: 2-4). Assessments occurred at baseline, post intervention, and 4 weeks after intervention completion. At each testing visit, participants completed the Physical Activity Scale for the Elderly (PASE), the Western Ontario and McMaster Universities Arthritis Index pain subscale, and a quadriceps maximal voluntary isometric contraction (MVIC) performed at 70° of knee flexion measured with an isokinetic dynamometer. Multiple regression analyses were conducted to assess the association between MVIC normalized to body mass (nMVIC - predictor variable) and PASE after accounting for age, body mass index, radiographic OA severity, and pain. RESULTS: For all participants at baseline, there was a significant association between greater nMVIC and greater PASE (ΔR2=0.049, p=0.033) after accounting for covariates. When stratified by sex, nMVIC was not associated with PASE (Males: ΔR2=0.045, p=0.197; Females: ΔR2=0.011, p=0.432). There was no association between the ΔnMVIC and ΔPASE following the intervention (Total: ΔR2=0.043, p=0.072; Males: ΔR2=0.071, p=0.106; Females ΔR2=0.008, p=0.585), or 4 weeks post intervention (Total: ΔR2=0.001, p=0.845; Males: ΔR2=0.009, p=0.629; Females: ΔR2=0.002, p=0.773). CONCLUSIONS: Although greater quadriceps strength was associated with greater self-reported PA, nMVIC only explained 4.9% of the variance in PASE. Post intervention, a change in strength was not associated with a change in PA. Therapeutic interventions aimed at increasing strength may not lead to a subsequent increase in PA. Future studies should investigate the influence of interventions incorporating PA and strength on health and physical function in individuals with knee OA. Supported by NIH NIAMS 1R21AR067560-01.
Sensitive Detection of Borrelia burgdorferi Sensu Lato DNA and Differentiation of Borrelia Species by LightCycler PCR (2001)

In order to differentiate species within the Borrelia burgdorferi sensu lato complex, LightCyler PCR and melting-curve analysis of the amplicons of two genes with intraspecies variability, the p66 gene and the recA gene, were performed. It was demonstrated that nested LightCycler PCR amplification of p66 is more sensitive in the detection of borrelia DNA than amplification of the recA gene. B. burgdorferi sensu stricto could be differentiated from Borrelia garinii and Borrelia afzelii by melting-curve analysis of the p66 gene amplicon. B. garinii could be differentiated from B. afzelii and B. burgdorferi sensu stricto by melting-curve analysis of the recA gene amplicon. Therefore, the PCRs complement each other in subtyping different Borrelia species, and combined LightCycler PCR and melting-curve analysis of both target genes is a rapid method to distinguish the three species of B. burgdorferi sensu lato.
A Triangle Matching Algorithm for Gravity-aided Navigation for Underwater Vehicles (2013)

In this paper, a triangle matching algorithm using local gravity field maps is proposed to bound the drift errors inherent in Strapdown Inertial Navigation Systems (SINS) in gravity-aided navigation. This triangle matching algorithm has two main stages, the first is the initial matching stage, which has a coarse phase and a fine phase to address the large unknown initial errors made by INS, and the other is the tracking matching stage, which mainly aims at tracking the matching solution with the vehicle running in real time. Simulations were carried out using data for the Bohai Sea and South China Sea areas, to assess the effects of different initial errors on the matching solutions. Finally some experiments were carried out to evaluate the proposed algorithm. The results show that the triangle matching algorithm has some compelling advantages, such as a capability to address the large unknown initial errors made by INS, and good real-time quality of matching the gravity measurements with the local gravity maps.