gebhart/patrepeval huggingface dataset:
Screening of Free Radical Scavenging Compounds in Water Extracts of <i>Mentha</i> Samples Using a Postcolumn Derivatization Method (2004)

An on-line high-performance liquid chromatography-1,1-diphenyl-2-picrylhydrazyl (HPLC-DPPH*) method has been improved for the detection of polar and nonpolar radical scavenging compounds in complex plant extracts. Nine water extracts were prepared from different Mentha species, varieties, hybrids, and cultivars. After the components within each extract had been separated by reverse phase chromatography using 10-100% methanol with 2% acetic acid as a mobile phase, analytes within the eluent capable of scavenging a citric acid-sodium citrate-buffered methanol 1,1-diphenyl-2-picrylhydrazyl solution were detected by postcolumn derivatization at 517 nm. The HPLC-DPPH* on-line method was applied to the qualitative and quantitative analysis of Mentha extracts. There was a strong correlation between the scavenging (negative) peak area and the concentration of the radical scavenging reference substances used. The minimum detectable concentration (microg/mL) of the antioxidant compounds was determined. Caffeic acid, eriocitrin (eriodictyol-7-O-rutinoside), luteolin-7-O-glucoside, and rosmarinic acid were identified as the dominant radical scavengers in these extracts by this method.
Corrigendum Vol.2(1) (2013)

DOI: http://dx.doi.org/10.3329/cbmj.v2i2.16706 Community Based Medical Journal 2013 July: Vol.02 No 02: 81
Recombinant Interleukin-2 in Patients Aged Younger Than 60 Years With Acute Myeloid Leukemia in First Complete Remission: Results From Cancer and Leukemia Group B 19808 (2020)

Recombinant interleukin-2 (rIL-2) induces cellular cytotoxicity against leukemia blasts. Patients with acute myeloid leukemia (AML) in first complete remission (CR) may harbor minimal residual disease that is susceptible to rIL-2–activated effector cells.
Acute decrease in renal microvascular P<scp>o</scp><sub>2</sub> during acute normovolemic hemodilution (2006)

Large differences in the tolerance of organ systems to conditions of decreased O(2) delivery such as hemodilution exist. The kidney receives approximately 25% of the cardiac output and O(2) delivery is in excess of the oxygen demand under normal circumstances. In a rat model of acute normovolemic hemodilution (ANH), we studied the effect of reduced hematocrit on renal regional and microvascular oxygenation. Experiments were performed in 12 anesthetized male Wistar rats. Six animals underwent four steps of ANH (hematocrit 25, 15, 10, and <10%). Six animals served as time-matched controls. Systemic and renal hemodynamic and oxygenation parameters were monitored. Renal cortical (c) and outer medullary (m) microvascular PO(2) (microPO(2)) and the renal venous PO(2) (P(rv)O(2)) were continuously measured by oxygen-dependent quenching of phosphorescence. Despite a significant increase in renal blood flow in the first two steps of ANH, cmicroPO(2) and mmicroPO(2) dropped immediately. From the first step onward oxygen consumption (VO(2(ren))) became dependent on oxygen delivery (DO(2(ren))). With a progressive decrease in hematocrit, a significant correlation between microPO(2) and VO(2(ren)) could be observed, as well as a PO(2) gap between microPO(2) and P(rv)O(2). Furthermore, there was a high correlation between VO(2(ren)) and RBF over a wide range of flows. In conclusion, the oxygen supply to the renal tissue is becoming critical already in an early stage of ANH due to the combination of increased VO(2(ren)), decreased DO(2(ren)), and intrarenal O(2) shunt. This has clinical relevance as recent publications reporting that hemodilution during surgery forms a risk factor for postoperative renal dysfunction.
PrivBayes (2014)

Privacy-preserving data publishing is an important problem that has been the focus of extensive study. The state-of-the-art goal for this problem is differential privacy, which offers a strong degree of privacy protection without making restrictive assumptions about the adversary. Existing techniques using differential privacy, however, cannot effectively handle the publication of high-dimensional data. In particular, when the input dataset contains a large number of attributes, existing methods require injecting a prohibitive amount of noise compared to the signal in the data, which renders the published data next to useless.
An evaluation of strategies for two-user redirected walking in shared physical spaces (2017)

As the focus of virtual reality technology is shifting from singleperson experiences to multi-user interactions, it becomes increasingly important to accommodate multiple co-located users within a shared real-world space. For locomotion and navigation, the introduction of multiple users moving both virtually and physically creates additional challenges related to potential user-on-user collisions. In this work, we focus on defining the extent of these challenges, in order to apply redirected walking to two users immersed in virtual reality experiences within a shared physical tracked space. Using a computer simulation framework, we explore the costs and benefits of splitting available physical space between users versus attempting to algorithmically prevent user-to-user collisions. We also explore fundamental components of collision prevention such as steering the users away from each other, forced stopping, and user re-orientation. Each component was analyzed for the number of potential disruptions to the flow of the virtual experience. We also develop a novel collision prevention algorithm that reduces overall interruptions by 17.6% and collision prevention events by 58.3%. Our results show that sharing space using our collision prevention method is superior to subdividing the tracked space.
On Task Assignment for Real-Time Reliable Crowdsourcing (2014)

With the rapid growth of mobile smartphone users, several commercial mobile companies have exploited crowd sourcing as an effective approach to collect and analyze data, to improve their services. In a crowd sourcing system, "human workers" are enlisted to perform small tasks, that are difficult to be automated, in return for some monetary compensation. This paper presents our crowd sourcing system that seeks to address the challenge of determining the most efficient allocation of tasks to the human crowd. The goal of our algorithm is to efficiently determine the most appropriate set of workers to assign to each incoming task, so that the real-time demands are met and high quality results are returned. We empirically evaluate our approach and show that our system effectively meets the requested demands, has low overhead and can improve the number of tasks processed under the defined constraints over 71% compared to traditional approaches.
Reservoir-Fluid Sampling Revisited— A Practical Perspective (2007)

Summary Pressure/volume/temperature (PVT) fluid properties are an integral part of determining the ultimate oil recovery and characterization of a reservoir, and are a vital tool in our attempts to enhance the reservoir's productive capability. However, as the experimental procedures to obtain these are time consuming and expensive, they are often based on analyses of a few reservoir-fluid samples, which are then applied to the entire reservoir. Therefore, it is of utmost importance to ensure that representative samples are taken, as they are fundamental to the reliability and accuracy of a study. Critical to the successful sampling of a reservoir fluid is the correct employment of sampling procedures and well conditioning before and during sampling. There are two general methods of sampling—surface and subsurface sampling. However, within these, there exist different methods that can be more applicable to a particular type of reservoir fluid than to another. In addition, well conditioning can differ depending on the type of reservoir fluid. Sampling methods for each reservoir type will be discussed with an emphasis on scenarios where difficulties arise, such as near-critical reservoir fluids and saturated reservoirs. Methods, including single-phase sampling and isokinetic sampling, which have been used increasingly in the last decade, will also be discussed with some detail, as will preservation of the representatives of other components in the sample including asphaltenes, mercury, and sulfur compounds. The paper presents a discussion aimed at better understanding the methods available, concepts behind the methods, well conditioning, and problems involved in obtaining representative fluid samples.
A scalable architecture for the HTML5/X3D integration model X3DOM (2010)

We present a scalable architecture, which implements and further evolve the HTML/X3D integration model X3DOM introduced in Behr et al. 2009. The goal of this model is to integrate and update declarative X3D content directly in the HTML DOM tree. The model was previously presented in a very abstract and generic way by only suggesting implementation strategies. The available opensource x3dom.js architecture provides concrete solutions to the previously open points and extents the generic model if necessary. The outstanding feature of the architecture is to provide a single declarative interface to application developers and at the same time support of various backends through a powerful fallback-model. This fallback-model does not provide a single implementation strategy for the runtime and rendering module but supports different methods transparently. This includes native browser implementations and X3D-plugins as well as a WebGL-based scene-graph, which allows running the content without the need for installing additional plugins on all browsers that support WebGL. The paper furthermore discusses generic aspects of the architecture like encoding and introspection, but also provides details concerning two backends. It shows how the system interfaces with X3D-plugins and WebGL and also discusses implementation specific features and limitations.
Brillouin optical correlation domain analysis with more than 1 million effective sensing points based on differential measurement (2015)

Large increase of effective sensing points in Brillouin optical correlation domain analysis (BOCDA) is achieved by simultaneously applying double modulation and optical time gate based on differential measurement scheme. The noise substructure of Brillouin gain spectrum induced by the double modulation is effectively suppressed by the differential measurement, leading to 2,000 times enlargement of the measurement range. Distributed strain and temperature sensing along a 10.5 km fiber with spatial resolution of less than 1 cm is experimentally demonstrated which corresponds to over 1 million effective sensing points.
Novell LAN for the Hungarian Institute of Cardiology (2002)

The design, development, installation, and maintenance of a computerized information system using DOS-based PC workstations and a multiserver local area network that is interconnected to worldwide area networks is discussed. The author summarizes the network topology, the database philosophy, and some interesting subsystems like optical patient cards, bedside terminals, picture archiving and communicative systems (PACS), etc. The system was implemented as the first automated information system in a 250 bed university hospital that specialized only in cardiac patients and open heart surgery.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Integrated ultrasound and photoacoustic probe for co-registered intravascular imaging (2011)

We report on the synergy of an integrated ultrasound (US) and photoacoustic (PA) probe system for intravascular imaging. The combined dual-modality probe is based on a 39 MHz ring-shaped US transducer which detects both US echoes and laser-generated PA signals. By combining optical fiber, US transducer, and micromirror, we can obtain intravascular cross-sectional B-scan images by internal illumination of the sample. The performance of the probe is evaluated in a phantom study. Moreover, the coaxially designed probe also provides co-registered US and PA images of a normal rabbit aorta, which demonstrates the imaging ability of the dual-functional system, implying future clinical applications.
A View from the Center: The Future of Continuing Education in Metropolitan Universities (1992)

This article advances knowledge utilization for greater emphasis among the functions of the university and urges that it be enhanced in the practice of civic culture. Glances at the future of continuing education are made along the dimensions ot first, education and industrial practice, and, second, the restoration of primary citizenship. The first moves easily from where continuing educators now find themselves; the second is more elusive and requires new forms of financial support and administrative organization.
Artificial neural network for myelin water imaging (2019)

The proposed neural networks demonstrate the feasibility of real-time processing for MWI with high accuracy.
Parametric dog-bone-shaped tunable cylindrical fluidic lens (2021)

Tunable spherical fluidic lenses are among the most essential components in adaptive optics. However, fabricating cylindrical tunable lenses has proven more challenging, mainly due to the difficulty in eliminating the defocus component. We demonstrate a parametric approach to minimize the defocus in cylindrical tunable fluidic lenses. We theoretically model and experimentally verify that a dog-bone-shaped tunable cylindrical fluidic lens exhibits almost pure cylindrical performance within the range of ${\pm{\rm 5D}}$ of astigmatism. We anticipate these results will facilitate the use of tunable cylindrical fluidic lenses in adaptive optics applications and particularly ophthalmic devices, where rapid and reliable wavefront correction is required.
ChemInform Abstract: Synthesis of Some Benzimidazole Derivatives as Potential Anthelmintics. (1989)

Abstract The title compounds (I) are prepared following common procedures.
Bisphenol A activates Maxi‐K (K<sub>Ca</sub>1.1) channels in coronary smooth muscle (2010)

Our data indicate that BPA increased the activity of Maxi-K channels and may represent a basis for some potential toxicological effects.
Numerical Search of Bounded Relative Satellite Motion (2006)

Relative motion between two or more satellites has been studied for a long time, as the works of W.H. Clohessy and R.S. Wiltshire, dated 1960, or the studies of J. Tschauner, dated 1967, can testify. Not only these early works are milestones for the relative motion modelling, as they provide linear models whose accuracy in terms of motion prediction is granted in the sim- plified assumption of pure Keplerian motion, but they are also powerful tools to gain insight into the complex dynamical properties of this type of motion. These models supply conditions on the initial relative position and velocity that allow the relative orbits to be periodic, that is closed orbits. When per- turbations, such as Earth oblateness and air drag effects, or even the simple nonlinearities of the keplerian gravitational attraction are taken into account in the model, an analytical solution appears more and more complicated to be derived, if not impossible. Simple relations on the initial conditions lead- ing to periodic orbits, such as those that are well known when considering Hill-Clohessy-Wiltshire (HCW) equations, are not to be expected without in- troducing some simplifications. In these cases a numerical approach could still be able to locate the exact conditions that result in a minimum drift per orbit. This work investigates the possibility of using a global optimization technique to locate the initial conditions resulting into minimal drift per orbit. Before us- ing this approach in the nonlinear problem, the methodology is tested on Hill's and Tschauner-Hempel's models, where an analytical solution is well known. The global optimizer is essentially a genetic algorithm that considers the initial relative velocities between the satellites as the chromosomes of the individuals of the population, the initial relative position is considered as given. This not only reduces the number of variables the GA has to optimize, but it also allows to search for closed relative orbits of a predefined dimension. Results show that the methodology is returning the analytical results with a satisfactorily precision and that is able to locate bounded motion also when nonlinearities become important.
Rigidity-induced emission enhancement of network polymers crosslinked by tetraphenylethene derivatives (2015)

Network polymers crosslinked by molecules with aggregation-induced emission (AIE) properties exhibited rigidity-induced emission enhancement derived from restriction of intramolecular motions.
Proteoid Roots. Physiology and Development (1999)

Nearly 100 years ago, Engler described the unusual root morphology of plants in the family Proteaceae growing in the Leipzig Botanic Gardens. They had extensively branched roots covered with long, densely grouped absorption hairs. It wasn't until 1960 that Purnell coined the term “proteoid root
Photopolymerized Biomaterials for Application in the Temporomandibular Joint (2001)

Chronic foreign body reactions have limited the successful application of alloplastic implants for treatment of temporomandibular joint (TMJ) disorders. There is a great clinical need for new materials with enhanced properties for application in the diarthrodial joint. Photopolymerizations may provide many advantages for fabricating new biomaterials for the TMJ and may address some of the notable differences between the TMJ and other articulations. Specifically, the feasibility of trans-tissue (i.e. through the skin) photopolymerizations may yield less-invasive surgical procedures. Also, novel 3-dimensional photoprocessing techniques may be used to fabricate patient-specific alloplastic devices for improved compliance and efficacy. Finally, the mild conditions necessary for photopolymerizations make the reaction ideal for encapsulating cells with the potential to create constructs for tissue engineering, which may be beneficial for disk replacement therapies.
FcεRI-mediated nuclear factor κB activation and cytokine production from mast cell degranulation (2006)

JEM © The Rockefeller University Press $8.00 Vol. 203, No. 2, February 20, 2006 337–347 www.jem.org/cgi/doi/10.1084/jem.20051982 337 Mast cells are derived from myeloid progenitor cells and widely distributed throughout vascularized tissues. They participate in innate and adaptive immune defenses against bacteria and parasites and play a key role in IgE-mediated allergic diseases such as atopy and asthma, which are responsible for increasing global health problems (1). Moreover, mast cells contribute to autoimmunity and are involved in pathological tissue remodeling processes that are associated with chronic infl ammation. All these biological and pathological functions are triggered by mast cell–derived proinfl ammatory mediators such as histamine, arachidonic acid metabolites, and cytokines, which are released upon mast cell activation. The major stimulus for mast cell activation is the aggregation of the high-affi nity receptor for IgE, FceRI (2, 3). Cross-linking of FceRIbound IgE with multivalent antigen or allergen triggers a series of biochemical events that culminate in mast cell eff ector function. Signaling is initiated through the phosphorylation of immunoreceptor tyrosine-based activation motifs in the tails of the FceRI β and γ subunits by Src family protein tyrosine kinases (2). The tyrosine-phosphorylated immunoreceptor tyrosine-based activation motifs recruit the kinase Syk, which, together with the activated receptor-proximal Src protein tyrosine kinases, mediates phosphorylation and consequent reorganization of adaptor and scaff olding proteins at the activated FceRI complex. Collectively, early signaling induces the activation of downstream enzymes such as phosphatidylinositol 3–kinase and phospholipase C, the generation 10.1084/jem.20051982 20051982 The Bcl10–Malt1 complex segregates FceRI-mediated nuclear factor κB activation and cytokine production from mast cell degranulation
Supported Noble Metals on Hydrogen‐Treated TiO<sub>2</sub> Nanotube Arrays as Highly Ordered Electrodes for Fuel Cells (2013)

Hydrogen-treated TiO2 nanotube (H-TNT) arrays serve as highly ordered nanostructured electrode supports, which are able to significantly improve the electrochemical performance and durability of fuel cells. The electrical conductivity of H-TNTs increases by approximately one order of magnitude in comparison to air-treated TNTs. The increase in the number of oxygen vacancies and hydroxyl groups on the H-TNTs help to anchor a greater number of Pt atoms during Pt electrodeposition. The H-TNTs are pretreated by using a successive ion adsorption and reaction (SIAR) method that enhances the loading and dispersion of Pt catalysts when electrodeposited. In the SIAR method a Pd activator can be used to provide uniform nucleation sites for Pt and leads to increased Pt loading on the H-TNTs. Furthermore, fabricated Pt nanoparticles with a diameter of 3.4 nm are located uniformly around the pretreated H-TNT support. The as-prepared and highly ordered electrodes exhibit excellent stability during accelerated durability tests, particularly for the H-TNT-loaded Pt catalysts that have been annealed in ultrahigh purity H2 for a second time. There is minimal decrease in the electrochemical surface area of the as-prepared electrode after 1000 cycles compared to a 68 % decrease for the commercial JM 20 % Pt/C electrode after 800 cycles. X-ray photoelectron spectroscopy shows that after the H-TNT-loaded Pt catalysts are annealed in H2 for the second time, the strong metal-support interaction between the H-TNTs and the Pt catalysts enhances the electrochemical stability of the electrodes. Fuel-cell testing shows that the power density reaches a maximum of 500 mWcm(-2) when this highly ordered electrode is used as the anode. When used as the cathode in a fuel cell with extra-low Pt loading, the new electrode generates a specific power density of 2.68 kWg(Pt) (-1) . It is indicated that H-TNT arrays, which have highly ordered nanostructures, could be used as ordered electrode supports.
DSP implementation of low-complexity equalizer for multicarrier systems (2003)

Efficient complex perfect reconstruction filter bank structures based on cosine and sine modulated filter bank sections have recently been introduced. In the transmultiplexer configuration, these filter banks can be used as a basis when developing filter bank based multicarrier systems for wireless communications. Also a simple channel equalization concept for such systems has been proposed recently. This so-called ASCET structure uses an oversampled analysis bank in receiver end to be able to do the equalization in per-carrier way. In this paper we explore the possibilities of implementing the receiver bank and equalizer sections with a digital signal processor (DSP), using the TMS320C5510 as the platform. Both single- processor and two-processor designs are considered. With realistic filter bank parameters, about 1 MHz and 2 MHz sampling rates are possible in the two cases, respectively.