gebhart/patrepeval huggingface dataset:
Coherent combining of self-cleaned multimode beams (2020)

A low intensity light beam emerges from a graded-index, highly multimode optical fibre with a speckled shape, while at higher intensity the Kerr nonlinearity may induce a spontaneous spatial self-cleaning of the beam. Here, we reveal that we can generate two self-cleaned beams with a mutual coherence large enough to produce a clear stable fringe pattern at the output of a nonlinear interferometer. The two beams are pumped by the same input laser, yet are self-cleaned into independent multimode fibres. We thus prove that the self-cleaning mechanism preserves the beams' mutual coherence via a noise-free parametric process. While directly related to the initial pump coherence, the emergence of nonlinear spatial coherence is achieved without additional noise, even for self-cleaning obtained on different modes, and in spite of the fibre structural disorder originating from intrinsic imperfections or external perturbations. Our discovery may impact theoretical approaches on wave condensation, and open new opportunities for coherent beam combining.
Special Chromatographic. Multidimensionale Analytik komplexer Systeme mit GC und MS (2006)

Weiche Photoionisations-Massenspektrometrie gekoppelt mit zweidimensionaler Gaschromatographie trennt komplexe Gemische kleiner Moleküle, beispielsweise eine Dieselprobe oder biologische Metaboliten.
Direct, Atom Efficient, and Halide‐Free Syntheses of Azolium Azolate Energetic Ionic Liquids and Their Eutectic Mixtures, and Method for Determining Eutectic Composition (2008)

Three in a row: We report i) the successful halide-free, efficient syntheses of azolium azolates by reaction of 1,3-dimethylimidazolium-2-carboxylate with neutral azoles (by a one-pot synthesis with an easy to remove byproduct (CO2 gas, see scheme), ii) the development of a facile, low sample demand method for ready determination of the eutectic point compositions of mixtures of these salts, and iii) the application of the new synthetic techniques for the direct preparation of the eutectic mixtures.
A Thermohydrodynamic Analysis of Journal Bearings Lubricated by a Non-Newtonian Fluid (1988)

Our earlier work on the flow of a non-Newtonian fluid of the differential type in a journal bearing is extended here to include nonisothermal operations and temperature dependent viscosity. We show that for the type of lubricant investigated, even a slight departure from Newtonian behavior renders the bearing performance relatively insensitive to changes in lubricant temperature. But whether this change in lubricant behavior actually results in improved load capacity depends on the value and the sign of the material parameters.
Development of a New Hybrid Biodegradable Drug-Eluting Stent for the Treatment of Peripheral Artery Disease (2016)

This study aimed to develop a new biodegradable stent for peripheral artery disease (PAD) that could provide sufficient radial force to maintain long-term patency and flexibility. All self-expandable hybrid biodegradable stents were designed by using a knitting structure composed of poly-L-lactic acid (PLLA) and nitinol. Four different types of stents were implanted in 20 iliac arteries in 10 mini pigs as follows: a bare-metal stent (BMS) (group 1, <i>n</i> = 5), a drug-free hybrid stent (group 2, <i>n</i> = 5), a 50% (50 : 100, <i>w</i>/<i>w</i>) paclitaxel (PTX)/poly-lactide-<i>co</i>-glycolic acid (PLGA; fast PTX-releasing form) hybrid stent (group 3, <i>n</i> = 5), and a 30% (30 : 100, <i>w</i>/<i>w</i>) PTX/PLGA (slow PTX-releasing form) hybrid stent (group 4, <i>n</i> = 5). We performed follow-up angiography and intravascular ultrasonography (IVUS) at 4 and 8 weeks. In a comparison of groups 1, 2, 3, and 4, less diameter stenosis was observed in the angiographic analysis for group 4 at the 4-week follow-up (19.0% ± 12.7% versus 39.3% ± 18.1% versus 46.8% ± 38.0% versus 4.8% ± 4.2%, resp.; <i>p</i> = 0.032). IVUS findings further suggested that the neointima of the patients in group 4 tended to be lesser than those of the others. Our new biodegradable 30% PTX/PLGA (slow-releasing form) stent showed more favorable results for patency than the other stent types.
Self-expandable Metallic Stents for Patients with Recurrent Esophageal Carcinoma After Failure of Primary Chemoradiotherapy (2001)

Although the placement of a self-expandable metallic stent for patients with recurrent esophageal carcinoma after failure of chemoradiotherapy improved their oral alimentation status, we found that this treatment increases the risk of life-threatening pulmonary complications.
Scaling laws for harmonically trapped two-species mixtures at thermal equilibrium (2019)

We discuss the scaling of the interaction energy with particle numbers for a harmonically trapped two-species mixture at thermal equilibrium experiencing interactions of arbitrary strength and range. In the limit of long-range interactions and weak coupling, we recover known results for the integrable Caldeira-Leggett model in the classical limit. In the case of short-range interactions and for a balanced mixture, numerical simulations show scaling laws with exponents that depend on the interaction strength, its attractive or repulsive nature, and the dimensionality of the system. Simple analytic considerations based on equilibrium statistical mechanics and small interspecies coupling quantitatively recover the numerical results. The dependence of the scaling on interaction strength helps to identify a threshold between two distinct regimes. Our thermalization model covers both local and extended interactions, allowing for interpolation between different systems such as fully ionized gases and neutral atoms, as well as parameters describing integrable and chaotic dynamics.
Internal sequence analysis of proteins separated on polyacrylamide gels at the submicrogram level: Improved methods, applications and gene cloning strategies (1990)

The fields of protein chemistry and molecular biology are currently merging for study of biologically relevant events and conditions. To obtain partial sequences of microamounts of protein, efficient integration of high resolution separation and sequencing technologies is required. We report here on improved methods that allow extensive internal sequencing of 10 to 20 picomoles protein recovered from one- or two-dimensional gels. Each step of the standard protocol of Aebersold et al. (Proc. Natl. Acad. Sci. USA 1987, 84, 6970-6974) and the required instrumentation were examined and specifically adapted for use with submicrogram amounts of protein. Optimizations of in situ microdigests and liquid chromatography were needed for improved peptide recovery. Subsequent automated sequencing required subpicomole analysis. New methods for S-alkylation of gel-separated proteins and accurate identification of tryptophan-containing peptides were introduced to insure overall higher efficiencies. The acquired internal sequences facilitated cloning of the genes and several strategies are discussed. Applying our method, several proteins of unknown structure were sequenced and successfully identified or cloned. Internal sequences of submicrogram protein amounts, recovered from a single two-dimensional gel of Escherichia coli total protein (120 micrograms), allowed unambiguous identification of the spots but pre-gel enrichment will be required for analysis of most (90-95%) other spots. Integration of comprehensive two-dimensional gel protein databases with methods and strategies outlined here could potentially be an abundant source of DNA probes and markers useful for guidance of the human genome sequencing project and for analysis of the emerging vast amounts of data.
A Shuttle-Efficient Qubit Mapper for Trapped-Ion Quantum Computers (2022)

Trapped-ion (TI) quantum computer is one of the forerunner quantum technologies. However, TI systems can have a limited number of qubits in a single trap. Execution of meaningful quantum algorithms requires a multiple trap system. In such systems, the computation may frequently involve ions from two different traps for which the qubits must be co-located in the same trap, hence one of the ions needs to be shuttled (moved) between traps, increasing the vibrational energy, degrading fidelity, and increasing the program execution time. The choice of initial mapping influences the number of shuttles. The existing Greedy policy counts the number of gates occurring between each pair of qubits and assigns edge weight. The qubits with high edge weights are placed close to each other. However, it neglects the stage of the program at which the gate is occurring. Intuitively, the contribution of the late-occurring gates to the initial mapping reduces since the ions might have already shuttled to a different trap to satisfy other gate operations. In this paper, we target this gap and propose a new policy especially for programs with considerable depth and high number of qubits (valid for practical-scale quantum programs). Our policy is program adaptive and prioritizes the gates re-occurring at the initial stages of the program over late occurring gates. Our technique achieves an average reduction of 9% shuttles/program (with 21.3% at best) for 120 random circuits and enhances the program fidelity up to 3.3X (1.41X on average).
UDPgalactose:glycoprotein–N‐acetyl‐d‐galactosamine 3‐β‐d‐galactosyltransferase activity synthesizing O‐glycan core 1 is controlled by the amino acid sequence and glycosylation of glycopeptide substrates (1994)

In order to investigate the role of the peptide moiety of glycoproteins in the control of O-glycan biosynthesis, UDPgalactose:glycoprotein-N-acetyl-D-galactosamine 3-beta-D-galactosyltransferase (core 1 beta 3-Gal-T) from rat liver was tested for its specificity towards GalNAc-containing glycopeptide substrates. Series of glycopeptides have been synthesized by solid-phase synthesis, protected with an acetyl group on the amino terminal and an amide group on the carboxy terminal, based on variations of the repeat sequences of human intestinal mucin. Most glycopeptides were excellent substrates for core 1 beta 3-Gal-T compared to benzyl alpha-D-galactosamine as indicated by their relatively high Vmax/Km. The enzyme preferred threonine alpha-D-galactosamine Thr(GalNAc) to serine alpha-D-galactosamine. Pro on the carboxy-terminal side adjacent to Thr(GalNAc) was inhibitory. Negatively charged amino acids on either side showed a low Km; substrates with negatively charged amino acids on the amino-terminal side were highly efficient substrates, suggesting charge-charge interactions between enzyme and substrate. Gal beta 1-3GalNAc alpha residues adjacent to Thr(GalNAc) reduced the activity. Product analysis using glycopeptide substrates with three adjacent GalNAc residues showed incorporation of one, two and a small amount of three Gal residues per molecule with an uneven distribution of the potential di-galactosylated isomers. These studies indicate that, in addition to initial glycosylation, the second step in the glycosylation pathways of O-glycans is also controlled by the structure and glycosylation of the peptide core of substrates.
HIV-1 reverse transcriptase (RT) genotype and susceptibility to RT inhibitors during abacavir monotherapy and combination therapy (2000)

Resistance conferring mutations to abacavir were relatively slow to develop during the monotherapy phase, and did not preclude durable efficacy of abacavir/lamivudine/zidovudine up to 48 weeks.
Kinematic GPS for Closed-Loop Control of Farm and Construction Vehicles (1995)

Operating heavy equipment can be a difficult and very
tedious task; control of an agricultural tractor requires
the continues attention of the driver, and farmers often
work long hours during the critical times. of planting
and harvesting. Loaders and other ground vehicles are
frequently used in situations which are unpleasant or.
even hazardous for the human operator. In the past,
some efforts have been made to automate agricultural
vehicles, but they have been largely unsuccessful due
to sensor limitations.
This paper explores the use of kinematic GPS as the
primary sensor in closed loop control of farm and
construction vehicles. A single, low-cost GPS receiver
can measure position to within a few centimeters and
attitude to within O.l”, and does not drift with time. The
ability to provide accurate information about multiple
vehicle states makes GPS ideal for system
identification and control of dynamic systems. In this
work, a ground vehicle control system was designed
and simulated using realistic plant, sensor, and
disturbance models. Optimal control methods were
examined to deal with non-linear and time-varying
vehicle dynamics. To validate this simulation,
experimental data was taken at Stanford using a GPS-
equipped electric golf cart.
This research builds upon previous work in developing
GPS-based aircraft autopilots. It is significant because
it is the first step towards a safe, low-cost system for
adaptive, highly accurate control of a ground vehicle. It
is anticipated that the implementation of these ideas
will take place in three steps: (1) driver-in-the-loop
control using a graphical display; (2) driver assisted
automatic control, with an on-board operator making
only high-level decisions; and (3) vehicle autonomous
guidance and control with on-line parameter
identification and adaptive control that will operate for
several hours without human intervention.
A Low Complexity Fast Inter Prediction Algorithm for H.264/AVC (2008)

The MPEG-4 H.264/AVC video coding standard adopts variable block sizes for inter frame coding to increase compression efficiency. However, to achieve this, the H.264 encoder employs a complex mode decision technique based on rate-distortion optimization (RDO) that requires high computational complexity, which significantly increases the encoder complexity. This paper proposes a fast hierarchal cross differences (HCD) algorithm that analyzes the spatial and temporal homogeneity of the block by using cross differences to reduces the number of modes that are required for RDO calculation in inter mode decision. The experimental results show that the proposed method is able to reduce complexity by up to 45% on average with negligible degradation in subjective and objective quality.
An improved Harmony Search algorithm with group technology model for scheduling workflows in cloud environment (2017)

Cloud computing is a latest innovation in technology in which provide services like infrastructure and applications to end-users as per pay-as-you-go model. It can provide virtualized services according to the requirements of end-users varying with time. The resources of the cloud are available everywhere and user can access these resources anytime. Cloud computing provides virtualization of physical machine into several virtual machines, which increases the resource availability. It provides high performance to the users, and profit to the service providers of cloud. Cloud resources are allocated dynamically on demand of users and shared by multiple numbers of users. The challenge is to optimally map the resources to users in order to satisfy users QoS constraints, known as task scheduling. Due to NP-complete nature of scheduling problem, exact solutions cannot be found in finite time. Therefore, many researchers apply heuristic or random search techniques as Particle swarm optimization (PSO), Ant colony optimization (ACO), Genetic algorithm (GA), Cuckoo Search (CS), Min-Min algorithm etc. to get solutions of such problems which are near optimal. We continuing our research in that direction too and we are proposing a workflow scheduling algorithm for cloud environment based upon Harmony Search algorithm merged with Group technology aiming to reduce makespan. We compared our harmony search based algorithm with Particle swarm optimization (PSO) and Genetic algorithm (GA) and Min-Min scheduling algorithm. The experimental results show that our proposed algorithm provides better results in terms of execution time.
Production and characterization of hyaluronic acid microparticles for the controlled delivery of growth factors using a spray/dehydration method (2016)

Hyaluronic acid is the main polysaccharide present in the connective tissue. Besides its structural function as backbone of the extracellular matrix, hyaluronic acid plays staple roles in several biological processes including the modulation of inflammation and wound healing processes. The application of hyaluronic acid in regenerative medicine, either as cells and/or drug/growth factors delivery vehicles, relies on its ability to be cross-linked using a plethora of reactions, producing stable hydrogels. In this work, we propose a novel method for the production of hyaluronic acid microparticles that presents several advantages over others that have been used. Basically, droplets of hyaluronic acid solution produced with a nozzle are collected in an isopropanol dehydration bath, and stabilized after crosslinking with adipic acid dihydrazide, using a cabodiimide-based chemistry. The size and morphology of the hyaluronic acid microparticles produced by this method varied with the molecular weight and concentration of the hyaluronic acid solution, the nozzle chamber pressure, the distance between the nozzle and the crosslinking solution, and the number of crosslinking steps. The degree of crosslinking of the hyaluronic acid microparticles produced was tunable and allowed to control the rate of the degradation promoted by hyaluronidase. Moreover, the particles were loaded with platelet lysate, a hemoderivative rich in cytokines with interest for regenerative medicine applications. The hyaluronic acid microparticles showed potential to bind selectively to positively charged molecules, as the factors present in the platelet lysate. It is envisioned that these can be further released in a sustained manner by ion exchange or by the degradation of the hyaluronic acid microparticles matrix promoted by extracellular matrix remodeling.
FePt films on self-assembled SiO2 particle arrays (2008)

Chemically L10 ordered (001) textured FePt thin films with perpendicular magnetic anisotropy can be grown on amorphous planar SiO2 substrate with an underlayer stack of [Pt (3nm)∕Cr (50nm)] adopting a [002] orientation when deposited at 350°C. This knowledge of optimum layer stack was transferred to self-assembled SiO2 particle arrays. While 330nm SiO2 particle arrays reveal perpendicular magnetic anisotropy with a remanence of almost one and a coercivity of 370mT, on 160nm particles, the FePt caps show a (111) texturing, leading to the random orientation of the easy axis of the magnetization.
Anomaly detection for dike monitoring using system identification (2014)

Structures such as seawalls, levees and dikes prevent low lying land from flooding. The structural health of these constructions is critical and needs to be maintained. In this paper, we present a data-driven approach that uses the information of different in-situ measurements to detect structural anomalies at an early stage. Our approach is based on system identification, in which the dike is modeled as a single-input, multiple-output, linear system whose parameters can be learned based on training data. A statistical test is then deployed to perform a systematic detection of anomalies. We demonstrate the performance of the proposed approach on real data from an experimental dike setup.
Vitamin E, Vitamin C, Beta Carotene, and Cognitive Function Among Women With or at Risk of Cardiovascular Disease (2009)

Antioxidant supplementation did not slow cognitive change among women with preexisting cardiovascular disease or cardiovascular disease risk factors. A possible late effect of vitamin C or beta carotene among those with low dietary intake on cognition warrants further study.
Big Data Infrastructure for Aviation Data Analytics (2014)

This paper describes our approach towards developing and using a big data infrastructure for analyzing aviation data. In this paper, we briefly introduce our data sources, nature of data collected, cluster design, data loading and storage strategy and our language and library of choice for analytics and visualization. We present some of the analytics we have implemented for health monitoring of auxiliary power units (APUs) using our big data infrastructure. Best practices to implement big data analytics and pitfalls are discussed and substantiated with our experiences.
Comparison of the Oxygen Reduction Reaction between NaOH and KOH Solutions on a Pt Electrode: The Electrolyte-Dependent Effect (2010)

The oxygen reduction reaction (ORR) on a polycrystalline Pt surface was studied using cyclic voltammetry techniques, and the influence of reaction media on the ORR is examined by comparing the ORR in NaOH and KOH solutions with concentration ranging from 0.5 to 14 M at 298 K. The results show that, in NaOH and KOH solutions, the ORR, a quasi-reversible diffusion-controlled reaction, is largely dependent on the electrolyte conditions, and KOH solutions are superior to NaOH solutions for the ORR process in both thermodynamic and kinetic consideration. As the alkaline concentration increases, the ORR performance frustrates, and the protonation of superoxide is suppressed; thus, the ORR shifts from a 2e reduction pathway to a 1e reduction pathway in both solutions.
Parameters of giant pulses from the Crab pulsar measured with the Mark5A VLBI system (2011)

Radio observations of the Crab pulsar were performed on the 100-m radio telescope of the Green Bank Observatory at a frequency of 2100 MHz in a 64-MHz band in two channels with right-and left-circular polarization. The Mark5A recording system was used. During 15 min of observing time, 609 giant pulses were recorded; the brightest had a peak flux density of 670 kJy. The energy distribution has been constructed, polarization properties have been analyzed, and the characteristic temporal and frequency scales in the radio emission of the detected giant pulses have been found. Comparison of these parameters indicates that the properties of giant pulses detected at the main-pulse and interpulse longitudes do not differ, as is clearly observed at frequencies above 4 GHz. Probable origins of the frequency evolution of the properties of giant pulses are discussed.
A EDUCAÇÃO FÍSICA ESCOLAR EM UMA PERSPECTIVA CONSTRUCIONISTA SOCIAL: CURRÍCULO E PADRÕES DE REFORMA (2021)

Este artigo discute o campo do currículo da Educação Física escolar e está pautado no referencial teórico construcionista social do curriculista inglês Ivor Goodson. Apresenta o conceito de "invenção de tradição", assim como o processo de constituição dessa disciplina escolar a partir de três hipóteses: 1) de que as disciplinas são amálgamas mutáveis; 2) de que a tradição acadêmica sobrepuja as tradições utilitária e pedagógica do currículo; e 3) de que o conhecimento escolar é determinado a partir de conflitos por status profissional. Em seguida, revela um novo padrão de reforma que se apodera da Educação Física pautado em um regime corporativo alinhado a um ideal neoliberal. Por fim, aponta que tais reformas desconsideram as especificidades dessa disciplina escolar e da intervenção docente.