gebhart/patrepeval huggingface dataset:
التصرف والإدمصاص الكاثودى المجزء لتقدير مستويات البالديوم غير المعيارى باستخدام طريقة جديدة لمحلول شيف القاعدى الذى يحتوى على تموعات تربيعية حمضية (2014)

The redox behavior of a palladium(II)-3,4-bis(2-hydroxyphenyl-imino) cyclobut-1-en-1,2-diol complex at Pt, Au and hanging mercury drop electrodes (HMDE) was studied for developing a low cost and precise method for determination of Pd concentration in road dust and other environmental samples. Hence, a controlled adsorptive accumulation of this complex on HMDE provided the basis for adsorptive cathodic stripping voltammetric (AdCSV) measurements of palladium at nanomolar levels at pH 9–10 and at
0.64 V vs. the Ag/AgCl reference electrode. The calibration plot was obtained in the range of 1.87 
10􀀀9 to 3.05 􀀁 10􀀀7 M (0.2 to 32.5 mgL􀀀1) Pd. The limit of detection was found to be 4.70 􀀁 10􀀀10 M (0.05 mgL􀀀1), with a relative standard deviation (RSD) of 􀀂2.1% (n ¼ 5) at 2.0 mgL􀀀1 Pd level. Common anions and cations did not interfere in the determination of Pd concentration. The method was applied to the determination of the concentration of Pd in pure authentic samples, roadside dust and water samples. The method oﬀers a simple system coupled with good reproducibility, accuracy, ruggedness and cost eﬀectiveness.
A Forecasting Ionospheric Real-time Scintillation Tool (FIRST) (2010)

[1] Transionospheric radio waves propagating through an irregular ionosphere with plasma depletions, or “bubbles,” are subject to sporadic enhancement and fading commonly referred to as scintillation. Knowledge of the current ionospheric condition allows system operators to distinguish between compromises due to the radio environment and system induced failures, while a forecast of the same provides the opportunity for operators to take appropriate actions to mitigate the effects and optimize service. This paper describes a technique that uses the readily accessible ionospheric characteristic h′F from ground-based ionospheric sounder data near the geomagnetic equator to forecast the occurrence or nonoccurrence of low-latitude scintillation activity in VHF/UHF bands. We illustrate the development of the Forecasting Ionospheric Real-time Scintillation Tool and its real-time capability for forecasting scintillation activity. Finally, we have found that there exists a threshold in the h′F value at 1930 LT that corresponds to the onset of scintillation activity in the Peruvian longitude sector, which is found to decrease with decreasing F10.7 cm fluxes in a linear manner.
Enhancing charge separation on high symmetry SrTiO3exposed with anisotropic facets for photocatalytic water splitting (2016)

Spatial charge separation achieved on the anisotropic facets of high symmetry SrTiO<sub>3</sub>nanocrystals for highly efficient photocatalytic overall water splitting.
Recursive inversion of externally defined linear systems by FIR filters (1989)

The approximate inversion of an internally unknown linear system, given by its impulse response sequence, by an inverse system having a finite impulse response, is considered. The recursive least-squares procedure is shown to have an exact initialization based on the triangular Toeplitz structure of the matrix involved. The proposed approach also suggests solutions to the problem of system identification and compensation.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Predicting the structural colors of films of disordered photonic balls (2022)

Photonic balls are spheres tens of micrometers in diameter containing assemblies of nanoparticles or nanopores with a spacing comparable to the wavelength of light. When these nanoscale features are disordered, but still correlated, the photonic balls can show structural color with low angle-dependence. Their colors, combined with the ability to add them to a liquid formulation, make photonic balls a promising new type of pigment particle for paints, coatings, and other applications. However, it is challenging to predict the color of materials made from photonic balls, because the sphere geometry and multiple scattering must be accounted for. To address these challenges, we develop a multiscale modeling approach involving Monte Carlo simulations of multiple scattering at two different scales: we simulate multiple scattering and absorption within a photonic ball and then use the results to simulate multiple scattering and absorption in a film of photonic balls. After validating against experimental spectra, we use the model to show that films of photonic balls scatter light in fundamentally different ways than do homogeneous films of nanopores or nanoparticles, because of their increased surface area and refraction at the interfaces of the balls. Both effects tend to sharply reduce color saturation relative to a homogeneous nanostructured film. We show that saturated colors can be achieved by placing an absorber directly in the photonic balls and mitigating surface roughness. With these design rules, we show that photonic-ball films have an advantage over homogeneous nanostructured films: their colors are even less dependent on the angle.
Liquid Gentamicin in Bone Cement (2005)

Liquid gentamicin in bone cement is potent and bactericidal. Although the mechanical properties of the cement are significantly diminished by the addition of liquid gentamicin, the temporary nature of the cement spacer makes its use potentially worthwhile given the substantial cost savings to the hospital and the patient.
Method of Moments Using Monte Carlo Simulation (1995)

Abstract We present a computational approach to the method of moments using Monte Carlo simulation. Simple algebraic identities are used so that all computations can be performed directly using simulation draws and computation of the derivative of the log-likelihood. We present a simple implementation using the Newton-Raphson algorithm with the understanding that other optimization methods may be used in more complicated problems. The method can be applied to families of distributions with unknown normalizing constants and can be extended to least squares fitting in the case that the number of moments observed exceeds the number of parameters in the model. The method can be further generalized to allow “moments” that are any function of data and parameters, including as a special case maximum likelihood for models with unknown normalizing constants or missing data. In addition to being used for estimation, our method may be useful for setting the parameters of a Bayes prior distribution by specifying moments of a distribution using prior information. We present two examples—specification of a multivariate prior distribution in a constrained-parameter family and estimation of parameters in an image model. The former example, used for an application in pharmacokinetics, motivated this work. This work is similar to Ruppert's method in stochastic approximation, combines Monte Carlo simulation and the Newton-Raphson algorithm as in Penttinen, uses computational ideas and importance sampling identities of Gelfand and Carlin, Geyer, and Geyer and Thompson developed for Monte Carlo maximum likelihood, and has some similarities to the maximum likelihood methods of Wei and Tanner.
Supplementary Tables S1-S5 from Mitogenic Insulin Receptor-A Is Overexpressed in Human Hepatocellular Carcinoma due to EGFR-Mediated Dysregulation of RNA Splicing Factors (2023)

&lt;p&gt;Supplementary Tables S1-S5 - PDF file 94K, Clinicopathologic characteristics of patients with HCC (S1); Pharmacological inhibitors (S2); Antibodies for Western blot and immunofluorescence (S3); Primer pairs for qualitative and quantitative PCR (S4); Correlations between IR-A and splicing factor mRNA levels in human HCC tumours (S5)&lt;/p&gt;
Compact, spatial-mode-interaction-free, ultralow-loss, nonlinear photonic integrated circuits (2021)

Nonlinear photonics based on integrated circuits has enabled applications such as parametric amplifiers, soliton frequency combs, supercontinua, and non-reciprocal devices. Ultralow optical loss and the capability for dispersion engineering are essential, which necessitate the use of multi-mode waveguides. Despite that rich interaction among different spatial waveguide eigenmodes can give rise to novel nonlinear phenomena, spatial mode interaction is typically undesired as it increases optical loss, perturbs local dispersion profile, and impedes soliton formation. Adiabatic bends, such as Euler bends whose curvature varies linearly with their path length, have been favoured to suppress spatial mode interaction. Adiabatic bends can essentially connect any two waveguide segments with adiabatic mode conversion, thus efficiently avoid mode mixing due to mode mismatch. However, previous works lack quantitative measurement data and analysis to fairly evaluate the adiabaticity, and are not based on photonic integrated circuits with tight optical confinement and optical losses of few dB/m. Here, we adapt, optimize, and implement Euler bends to build compact racetrack microresonators based on ultralow-loss, multi-mode, silicon nitride photonic integrated circuits. The racetrack microresonators feature a small footprint of only 0.21 mm^2 for 19.8 GHz FSR. We quantitatively investigate the suppression of spatial mode interaction in the racetrack microresonators with Euler bends. We show that the optical loss rate (15.5 MHz) is preserved, on par with the mode interaction strength (25 MHz). This results in an unperturbed microresonator dispersion profile. We further demonstrate single soliton of 19.8 GHz repetition rate. The optimized Euler bends and racetrack microresonators can be key building blocks for integrated nonlinear photonic systems, programmable processors and photonic quantum computing.
Computer Networks as Social Networks: Collaborative Work, Telework, and Virtual Community (1996)

When computer networks link people as well as machines, they become social networks. Such computer-supported social networks (CSSNs) are becoming important bases of virtual communities, computer-supported cooperative work, and telework. Computer-mediated communication such as electronic mail and computerized conferencing is usually text-based and asynchronous. It has limited social presence, and on-line communications are often more uninhibited, creative, and blunt than in-person communication. Nevertheless, CSSNs sustain strong, intermediate, and weak ties that provide information and social support in both specialized and broadly based relationships. CSSNs foster virtual communities that are usually partial and narrowly focused, although some do become encompassing and broadly based. CSSNs accomplish a wide variety of cooperative work, connecting workers within and between organizations who are often physically dispersed. CSSNs also link teleworkers from their homes or remote work centers to main organizational offices. Although many relationships function off-line as well as on-line, CSSNs have developed their own norms and structures. The nature of the medium both constrains and facilitates social control. CSSNs have strong societal implications, fostering situations that combine global connectivity, the fragmentation of solidarities, the de-emphasis of local organizations (in the neighborhood and workplace), and the increased importance of home bases.
Using formal techniques for identifying uninitialized registers in SoC designs (2003)

SoC designs today comprise IP blocks from different design teams and vendors. Because of differing design styles being used on IPs, integrating them and verifying them is a challenge for design teams. One of the problems that we have found while integrating is the way reset or initialisation circuitry is implemented. Lack of knowledge of IPs often cause problems late in the design flow when we perform gate level simulations with backannotated delays, thus uncovering a bug due to either incorrect integration or incorrect assumed behaviour. Transition relation of registers can be modeled using binary decision diagrams (BDD). Using constant propagation techniques in formal verification the BDDs can be reduced to constant values. This paper describes how formal verification techniques are used in identifying uninitialized registers in SoC designs.
The Methods of Choice for Extracellular Vesicles (EVs) Characterization (2017)

In recent years, extracellular vesicles (EVs) have become a subject of intense study. These membrane-enclosed spherical structures are secreted by almost every cell type and are engaged in the transport of cellular content (cargo) from parental to target cells. The impact of EVs transfer has been observed in many vital cellular processes including cell-to-cell communication and immune response modulation; thus, a fast and precise characterization of EVs may be relevant for both scientific and diagnostic purposes. In this review, the most popular analytical techniques used in EVs studies are presented with the emphasis on exosomes and microvesicles characterization.
Temperature-phased anaerobic digestion of wastewater sludges (1997)

The temperature-phased anaerobic bioreactor (TPAB) has been under study by Dague and co-workers at Iowa State University. The temperature-phased approach involves a two-stage reactor system with the first stage operated at a thermophilic temperature (commonly 55°C) and the second stage operated at a mesophilic temperature (commonly 35°C). The purpose of laboratory study was to compare the performance of the temperature-phased system with the conventional single-stage mesophilic system for treating mixtures of primary and waste activated sludge. Of particular interest in the research was a comparison of the two systems from the standpoint of coliform reduction, volatile solids (VS) destruction, and biogas production. The temperature-phased system achieved complete destruction of total and fecal coliforms over a range of SRTs from 11 to 28 days. The concentration of fecal coliforms in the effluent from the temperature-phased system never exceeded 1000 MPN/g total solids (TS), which can meet the U.S. Code of Federal Regulations, Title 40 (40 CFR), Part 503 coliform requirements for Class A sludge. At the optimal SRTs ranging from 11 to 17 days, the capacity of VS removal of temperature-phased system was more than double that of the conventional single-stage system. The foaming problem associated with the digestion of waste activated sludge was eliminated.
Supplementary Table 2 from PRAME-Induced Inhibition of Retinoic Acid Receptor Signaling-Mediated Differentiation—A Possible Target for ATRA Response in AML without t(15;17) (2023)

&lt;p&gt;XLSX file - 120K, Class Comparison PRAME&lt;/p&gt;
On the efficiency of 'A new efficient algorithm to compute the two-dimensional discrete Fourier transform' (1992)

The commenter suggests that the efficiency claims made by I. Gertner in the above-titled paper (IEEE Trans. Acoust., Speech, Signal Processing, vol.36, no.7, p.1036-50, July 1988), based on a Radon transform for reducing the number of 1-D discrete Fourier transform (DFTs) to compute a 2-D DFT, are offset by a costly increase in the number of additions required to perform the Radon transform. Gertner replies that the algorithm has an efficiency claim based on its parallelization of the 2-D task into smaller independent tasks and on its reduction of the number of DFTs required to complete the calculation.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
BaTiO3 based photonic time crystal and momentum stop band (2020)

Temporally periodic photonic crystals develop an ω-k dispersion relation with momentum band gaps. While conventional photonic crystals induce forbidden bands in the frequency spectrum of photons, photonic time crystals create forbidden regions in the momentum spectrum of photons. This effect allows for enhanced control over many optical processes that require both photonic energy and momentum conservations such as nonlinear harmonic generation. The simulation results show that more intensive scatter fields can obtained in photonic space time crystal. Also, we investigate topological phase transitions of photonic time crystals systems.
Photoelectrochemical Properties of α ‐ and   β ‐ ZnP2 Electrodes and Powders (1984)

The basic photoelectrochemical behavior of tetragonal p‐type has been investigated for the first time. The photoinduced current as a function of applied voltage and the spectral distribution of the photoresponse were measured in alkaline solutions (pH 13). Photosensitivity up to 580 nm in the visible range of the spectrum has been observed. From a linear Mott‐Schottky relation, an approximate value of the flatband potential at pH 13 for monoclinic has been determined. As a function of pH, shows Nernstian behavior. For tetragonal , could not be determined. The onset of the cathodic photocurrent ( at pH 13) indicates, however, a somewhat more positive for . Upon illumination with visible light, hydrogen evolution from alkaline EDTA solutions containing powders loaded with a catalyst is very efficient. For loaded with 0.5 weight percent of , a formal quantum efficiency of 12% is found at 470 nm.
ChemInform Abstract: BIOTRANSFORMATION BY PLANT TISSUE CULTURES (1980)

Abstract Review: Die Übersichtsarbeit behandelt die Bioumwandlung organischer Verbindungen durch pflanzliche Gewebekulturen.
4D Petrophysical Seismic Inversion On The Troll West Field (2009)

Inversions of seismic surveys often give quite low-resolution results that are difficult to compare with well data and geological models. We are therefore developing a multi-vintage seismic inversion based on a Petro-Elastic Model (PEM), called PetroSI-4D. This involves input from the geological model and good control on the petrophysical correlation between porosity and PEM-based seismic velocities. All vintages and input angle stacks are combined to jointly invert for layer thickness, rock properties and saturations. Perturbations of selected properties of the geological model are introduced using a simulated annealing algorithm to optimise the degree of match between the synthetic and the real angle stacks. There are no restrictions on number of input angles or number of monitor surveys, but new monitor surveys require new input to 4-D PEM. The base inversion result is delivered in porosity cubes instead of ordinary acoustic impedance and Vp/Vs results. The 4-D inversion result is planned to deliver saturation cubes instead of cubes of acoustic impedance or Vp/Vs changes. These parameters should be easier to compare and use in update of geological and reservoir models to validate the results. The Troll West Field shows that the Petrophysical seismic inversion with rock physics PEM connected to the inversion, gives good results and comparison with the porosity input model is shown. The purpose of 4-D petrophysical inversion is to make use of all available seismic data simultaneously, multi-vintage and pre-stack, to constrain the evolution of the saturation field.
Effects of curcumin, demethoxycurcumin, bisdemethoxycurcumin and tetrahydrocurcumin on 12-O-tetradecanoylphorbol-13-acetateinduced tumor promotion (1995)

Commercial grade curcumin (approximately 77% curcumin, 17% demethoxycurcumin and 3% bisdemethoxycurcumin) is widely used as a yellow coloring agent and spice in foods. In the present study topical application of commercial grade curcumin, pure curcumin or demethoxycurcumin had an equally potent inhibitory effect on 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced increases in ornithine decarboxylase activity and TPA-induced tumor promotion in 7,12-dimethylbenz[a]anthracene-initiated mouse skin. Bisdemethoxycurcumin and tetrahydrocurcumin were less active. In additional studies we found that commercial grade curcumin, pure curcumin, demethoxycurcumin and bisdemethoxycurcumin had about the same potent inhibitory effect on TPA-induced inflammation of mouse ears, as well as TPA-induced transformation of cultured JB6 (P+) cells. Tetrahydrocurcumin was less active. The results indicate that pure curcumin and demethoxycurcumin (the major constituents of commercial grade curcumin) have the same potent inhibitory effects as commercial grade curcumin for inhibition of TPA-induced tumor promotion, but bisdemethoxycurcumin and tetrahydrocurcumin are less active.
3G Evolution : HSPA and LTE for Mobile Broadband (2007)

This very up-to-date and practical book, written by engineers working closely in 3GPP, gives insight into the newest technologies and standards adopted by 3GPP, with detailed explanations of the specific solutions chosen and their implementation in HSPA and LTE. The key technologies presented include multi-carrier transmission, advanced single-carrier transmission, advanced receivers, OFDM, MIMO and adaptive antenna solutions, advanced radio resource management and protocols, and different radio network architectures. Their role and use in the context of mobile broadband access in general is explained. Both a high-level overview and more detailed step-by-step explanations of HSPA and LTE implementation are given. An overview of other related systems such as TD SCDMA, CDMA2000, and WIMAX is also provided.This is a 'must-have' resource for engineers and other professionals working with cellular or wireless broadband technologies who need to know how to utilize the new technology to stay ahead of the competition.The authors of the book all work at Ericsson Research and are deeply involved in 3G development and standardisation since the early days of 3G research. They are leading experts in the field and are today still actively contributing to the standardisation of both HSPA and LTE within 3GPP. * Gives the first explanation of the radio access technologies and key international standards for moving to the next stage of 3G evolution: fully operational mobile broadband* Describes the new technologies selected by the 3GPP to realise High Speed Packet Access (HSPA) and Long Term Evolution (LTE) for mobile broadband * Gives both higher-level overviews and detailed explanations of HSPA and LTE as specified by 3GPP
Avatar-mediated face tracking and lip reading for human computer interaction (2004)

Advanced human computer interaction requires automatic reading of human face in order to make the computer interact with human in the same way as human-to-human communication. We developed an automatic face tracking and lip reading system through a 3D face avatar to facilitate HCI applications in speech learning, emotional state monitoring, and non-verbal human computer interface design. The system implements a novel active face feature tracking algorithm with an uncalibrated camera. The 3D face pose is estimated and tracked by a Kalman filter-based matching process with a dynamic face model updating and constraint. The obtained facial motion parameters are transferred to an individualized 3D face avatar. As a result, a person's lip shape or expressions can be cloned to the animated 3D face avatar, by which all lip shapes from the same speech of different subjects can be easily compared and measured. This real time system targets the automatic facial expression analysis and synthesis for the next generation of HCI design.
Antimyeloperoxidase antibodies in the Churg-Strauss syndrome (1991)

Antibodies to myeloperoxidase were detected in the serum of three patients with the Churg-Strauss syndrome.