gebhart/patrepeval huggingface dataset:
Cyclopeptoids: a novel class of phase-transfer catalysts (2012)

The synthesis, complexation properties and catalytic activities under phase-transfer (PT) conditions of differently substituted cyclohexapeptoids are reported. Association constants, for small cationic alkali, and catalytic performances, in a model nucleophilic substitution, are comparable to those of representative crown ethers. Noteworthy, the N-[2-(2-methoxyethoxy)ethyl] side chain derivative presents a catalytic efficiency comparable to that of crypt-222, and higher than some commonly used quaternary ammonium salts and crown ethers. Moreover its association constant for Na(+) complexation proved to be higher when compared with dicyclohexyl-18-crown-6. The synthesized cyclohexapeptoids represent the first example of these peptidomimetics in PT catalysis, anticipating interesting applications in biphasic PT methodology.
Mucin gene (MUC1) transfer into human dendritic cells by cationic liposomes and recombinant adenovirus. (2001)

We have shown that cationic liposomal gene transfer into human DC was feasible. We could obtain antigen specific stimulation of PBL at a similar rate as with adenoviral MUC1-transduced DC.
Learning hidden curved exponential family models to infer face-to-face interaction networks from situated speech data (2008)

In this paper, we present a novel probabilistic frame-work for recovering global, latent social network struc-ture from local, noisy observations. We extend curved exponential random graph models to include two types of variables: hidden variables that capture the structure of the network and observational variables that capture the behavior between actors in the network. We develop a novel combination of informative and intuitive conver-sational (local) and structural (global) features to spec-ify our model. The model learns, in an unsupervised manner, the relationship between observable behavior and hidden social structure while simultaneously learn-ing properties of the latent structure itself. We present empirical results on both synthetic data and a real world dataset of face-to-face conversations collected from 24 individuals using wearable sensors over the course of 6 months.
<title>Developments in holographic-based scanner designs</title> (1997)

Holographic-based scanning systems have been used for years in the high resolution prepress markets where monochromatic lasers are generally utilized. However, until recently, due to the dispersive properties of holographic optical elements (HOEs), along with the high cost associated with recording 'master' HOEs, holographic scanners have not been able to penetrate major scanning markets such as the laser printer and digital copier markets, low to mid-range imagesetter markets, and the non-contact inspection scanner market. Each of these markets has developed cost effective laser diode based solutions using conventional scanning approaches such as polygon/f-theta lens combinations. In order to penetrate these markets, holographic-based systems must exhibit low cost and immunity to wavelength shifts associated with laser diodes. This paper describes recent developments in the design of holographic scanners in which multiple HOEs, each possessing optical power, are used in conjunction with one curved mirror to passively correct focal plane position errors and spot size changes caused by the wavelength instability of laser diodes. This paper also describes recent advancements in low cost production of high quality HOEs and curved mirrors. Together these developments allow holographic scanners to be economically competitive alternatives to conventional devices in every segment of the laser scanning industry.
Ternary semitransparent organic solar cells with a laminated top electrode (2017)

Tinted and colour-neutral semitransparent organic photovoltaic elements are of interest for building-integrated applications in windows, on glass roofs or on facades. We demonstrate a semitransparent organic photovoltaic cell with a dry-laminated top electrode that achieves a uniform average visible transmittance of 51% and a power conversion efficiency of 3%. The photo-active material is based on a majority blend composed of a visibly absorbing donor polymer and a fullerene acceptor, to which a selective near-infrared absorbing cyanine dye is added as a minority component. Our results show that organic ternary blends are attractive for the fabrication of semitransparent solar cells in general, because a guest component with a complementary absorption can compensate for the inevitably reduced current generation capability of a high-performing binary blend when applied as a thin, semitransparent film.
Acoustic Nonlinearity of an Orifice (1967)

The acoustic nonlinearity of an orifice in a plate has been investigated by measuring simultaneously the oscillatory flow velocity in the orifice and the acoustic-pressure fluctuations producing the flow. The relation between the pressure and velocity amplitudes, which is linear at sufficiently low pressures, is found to approach a square-law relation at large velocity amplitudes. By evaluating the phase relationship between the fundamental harmonic components of pressure and velocity, the acoustic-orifice impedance is determined. In the square-law region of the pressure/velocity relation, the resistive component of the orifice impedance dominates and is proportional to the velocity amplitude. This method of measurement, which is particularly useful at high amplitudes, is supplemented by measurements of sound transmission and frequency response of the orifice plate so that an impedance curve can be constructed over an extended range of amplitudes. An analogous program of measurements has been carried out to study the influence of a superimposed steady flow on the acoustic-orifice impedance. Finally, as an application of the results obtained, the absorption characteristics of resonator absorbers for high-intensity sound are discussed.
Inscription on an italian jar (1937)

Inscription on an italian jar Get access C. E. H. C. E. H. Search for other works by this author on: Oxford Academic Google Scholar Notes and Queries, Volume 173, Issue 10, 4 September 1937, Pages 173–174, https://doi.org/10.1093/nq/173.10.173d Published: 04 September 1937
Effect of Somatostatin on Salivary Secretion in Man (1987)

Intravenous infusion of pentagastrin increases salivary secretion progressively at doses from 1 to 4 μg/kg body weight/h. Pentagastrin also stimulates salivary secretion of amylase. Simultaneous administration of somatostatin, at the dose that inhibits gastric secretion of pentagastrin-stimulated HCl, blocks the effect of pentagastrin on salivary flow, while it does not reduce the amylase concentration. The data suggest that different mechanisms underlie the effects exerted by pentagastrin on salivary flow and on the concentration of amylase in saliva.
ROBUST LATERAL VEHICLE CONTROL USING QUANTITATIVE FEEDBACK THEORY (QFT) (1996)

This paper presents a new robust controller for autonomous lateral control of a highway vehicle. The controller is designed using Quantitative Feedback Theory (QFT), which is a frequency based control design methodology developed to explicitly address plant parameter uncertainties, as well as external disturbances and sensor noise. In a practical implementation, there will be significant variations in the vehicle dynamic parameters for the various vehicle types to be controlled on the highway. For example, variations in inertia, cornering behavior, and vehicle speed will all lead to significant changes in the dynamic response of a vehicle to a steering input. Traditional controllers, such as PID control, will not successfully provide robust optimal performance over the entire range of dynamic variation, and in some cases, cannot even guarantee controller stability. Clearly, such performance degradation and instability is not acceptable in a deployable system, and must be addressed during the controller design. Here, the authors present a QFT-based controller design which meets given performance specifications in spite of a wide variation in the vehicle dynamic parameters. Simulation results for curve tracking are presented for this controller for a roadway vehicle subject to a wide range of parametric uncertainty, illustrating the inherent robustness of the QFT design. The results illustrate that the QFT-based controller achieves specified performance in the presence of significant parametric uncertainty, and remains stable over the entire range of variation.
The effect of bu shen sheng xue fang on beta-thalassemia at gene level. (1998)

Isoelectrofocusing electrophoresis, PCR-SSCP analysis with DNA direct sequencing and RT-PCR were used to analyze the constituents of hemoglobin, determine the pattern of globin gene mutation, and detect its mRNA transcription extent. The results indicated that Bu Shen Sheng Xue Fang (BSSXF) significantly increased the contents of hemoglobin (Hb) and fetal hemoglobin (HbF), and the chain ratio in patients with beta-thalassemia. The drug is markedly effective in heterozygous, but not effective in homozygous or genetic compound patients. It was suggested that the beta-globin gene defects were compensated by elevating the gamma/beta + gamma ratio, promoting the transcription and expression of gamma-globin gene in synthesizing HbF.
Development of a New Quantitative X-Ray Microanalysis Method for Electron Microscopy (2010)

Quantitative X-ray microanalysis of thick samples is usually performed by measuring the characteristic X-ray intensities of each element in a sample and in corresponding standards. The ratio of the measured intensities from the unknown material to that from the standard is related to the concentration using the ZAF or ϕ(ρz) equations. Under optimal conditions, accuracies approaching 1% are possible. However, all the experimental conditions must remain the same during the sample and standard measurements. This is not possible with cold field emission scanning electron microscopes (FE-SEMs) where beam current can fluctuate around 5% in its stable regime. Very little work has been done on variable beam current conditions (Griffin, B.J. & Nockolds, C.E., Scanning 13, 307-312, 1991), and none relating to cold FE-SEM applications. To address this issue, a new method was developed using a single spectral measurement. It is similar in approach to the Cliff-Lorimer method developed for the analytical transmission electron microscope. However, corrections are made for X rays generated from thick specimens using the ratio of the characteristic X-ray intensities of two elements in the same material. The proposed method utilizes the ratio of the intensity of a characteristic X-ray normalized by the sum of X-ray intensities of all the elements measured for the sample, which should also reduce the amplitude of error propagation. Uncertainties in the physical parameters of X-ray generation are corrected using a calibration factor that must be previously acquired or calculated. As an example, when this method was applied to the calculation of the composition of Au-Cu National Institute of Standards and Technology standards measured with a cold field emission source SEM, relative accuracies better than 5% were obtained.
Determinants of Surgical Outcome in Patients With Isolated Tricuspid Regurgitation (2009)

Timely correction of severe tricuspid regurgitation carries an acceptable risk and improves functional capacity. Surgery should be considered before the development of advanced RV systolic dysfunction and before the development of anemia.
Efficacy of colistin‐impregnated beads to prevent multidrug‐resistant <i>A. baumannii</i> implant‐associated osteomyelitis (2009)

Osteomyelitis (OM) from multidrug-resistant (MDR) Acinetobacter has emerged in >30% of combat-related injuries in Iraq and Afghanistan. While most of these strains are sensitive to colistin, the drug is not available in bone void fillers for local high-dose delivery. To address this, we developed a mouse model with MDR strains isolated from wounded military personnel. In contrast to S. aureus OM, which is osteolytic and characterized by biofilm in necrotic bone, A. baumannii OM results in blastic lesions that do not contain apparent biofilm. We also found that mice mount a specific IgG response against three proteins (40, 47, and 56 kDa) regardless of the strain used, suggesting that these may be immuno-dominant antigens. PCR for the A. baumannii-specific parC gene confirmed a 100% infection rate with 75% of the MDR strains, and in vitro testing confirmed that all strains were sensitive to colistin. We also developed a real-time quantitative PCR (RTQ-PCR) assay that could detect as few as 10 copies of parC in a sample. To demonstrate the efficacy of colistin prophylaxis in this model, mice were treated with either parenteral colistin (0.2 mg colistinmethate i.m. for 7 days), local colistin (PMMA bead impregnated with 1.0 mg colistin sulfate), or an unloaded PMMA bead control. While the parenteral colistin failed to demonstrate any significant effects versus the placebo, the colistin PMMA bead significantly reduced the infection rate such that only 29.2% of the mice had detectable levels of parC at 19 days (p < 0.05 vs. i.m. colistin and placebo).
Preface (1967)

Abstract Vygotsky's Thought and Language was published in an excellent translation in 1962 and appeared in a paperback edition in 1965. It has had a steady though modest sale and has earned the admiration of a discriminating group of American readers. It is the scientific work by which he is principally and directly known in the United States (in contrast to the diagnostic work represented in the "Vygotsky test"). in the past years, he has also become known indirectly through his reflection in the writings of Luriya, Sokolov, Zaporozhetz, and others. The increased accessibility of Vygotsky's work has not created a "boom" nor produced passionate disciples. What it has done, instead, is to provide a sense of continuity to that growing group of psychologists in America who are concerned with the nature of intellectual development and its shaping by social, linguistic, and historical factors. For if there is not a boom in Vygotsky, there is certainly one in developmental psychology, and an overlapping one in psycholinguistics.
Statistical signal processing for automotive safety systems (2005)

The amount of software in general and safety systems in particular increases rapidly in the automotive industry. The trend is that functionality is decentralized, so new safety functions are distributed to common shared computer hardware, sensors and actuators using central data buses. This paper overviews recent and future safety systems, and high-lights the big challenges for researchers in the signal processing area
Microclouds : an approach for a network-aware energy-efficient decentralised cloud (2017)

The current datacenter-centralized architecture limits the cloud to the location of the datacenters, generally far from the user. This architecture collides with the latest trend of ubiquity of Cloud computing. Also, current estimated energy usage of data centers and core networks adds up to 3% of the global energy production, while according to latest estimations only 42,3% of the population is connected. In the current work, we focused on two drawbacks of datacenter-centralized Clouds: Energy consumption and poor quality of service. On the one hand, due to its centralized nature, energy consumption in networks is affected by the centralized vision of the Cloud. That is, backbone networks increase their energy consumption in order to connect the clients to the datacenters. On the other hand, distance leads to increased utilization of the broadband Wide Area Network and poor user experience, especially for interactive applications. A distributed approach can provide a better Quality of Experience (QoE) in large urban populations in mobile cloud networks. To do so, the cloud should confine local traffic close to the user, running on the users and network devices. In this work, we propose a novel distributed cloud architecture based on microclouds. Microclouds are dynamically created and allow users to contribute resources from their computers, mobile and network devices to the cloud. This way, they provide a dynamic and scalable system without the need of an extra investment in infrastructure. We also provide a description of a realistic mobile cloud use case, and the adaptation of microclouds on it. Through simulations, we show an overall saving up to 75% of energy consumed in standard centralized clouds with our approach. Also, our results indicate that this architecture is scalable with the number of mobile devices and provide a significantly lower latency than regular datacenter-centralized approaches. Finally, we analyze the use of incentives for Mobile Clouds, and propose a new auction system adapted to the high dynamism and heterogeneity of these systems. We compare our solution to other existing auctions systems in a Mobile Cloud use case, and show the suitability of our solution.
The cloning, sequencing and expression of a major antigenic region from the feline calicivirus capsid protein (1992)

RNA purified from the feline calicivirus (FCV) F9 vaccine strain was used to prepare a cDNA library in the expression vector lambda gt11. The library was screened for expression of FCV antigen using a rabbit antiserum prepared against purified FCV. A 330 bp cDNA clone was identified and used as a probe to obtain a larger overlapping clone of 1369 bp. Comparative sequence analysis with the CFI and F4 strains showed that the clones were derived from the 3' open reading frame encoding the capsid protein. The region encoded by the 330 bp clone was shown to be variable in the three strains compared, and therefore the probable location of major antigenic variation. This clone was expressed in a bacterial system and antiserum to the recombinant protein was used in immunoblots to confirm that this clone was derived from the gene encoding the capsid protein. From these immunoblots, several other capsid-related polypeptides were identified. Comparison with immunoblots using post-vaccination cat sera showed the antibody response in the cat was directed mainly against the capsid protein. Antiserum to the recombinant protein was shown to be effective in neutralizing the infectivity of FCV, indicating that at least one major neutralizing epitope had been cloned.
Improved Scene Reconstruction from Range Images (2002)

The modeling of real scenes is a complex and challenging task for which the use of laser rangefinders is one of the most promising approaches. Unfortunately, in many situations, it is not possible or practical to guarantee appropriate sampling of all surfaces in the scene. For example, occlusions and accessibility limitations to certain regions of the scene may cause some areas not to be visible by the scanner, resulting in incomplete or incorrectly reconstructed models. This paper describes a pipeline and a system implementation for improving model reconstruction from incomplete information available from range images. Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism, Virtual Reality
Effect of Air Exposure on the Resistivity of Sodium Beta and Beta Aluminas (1981)

The exposure of sodium beta and beta' alumina tubes to flowing air causes the room temperature resistivities to increase considerably. Nonohmic behavior is observed within 48 h. Measurements indicate that a hydrated surface region is primarily responsible. Heating the tubes to 600°C in dry air is able to reversibly restore the original resistivities. The evolution of CO 2 at higher temperatures suggests that chemical reactions may be occurring during exposure.
Performance comparisons of the minimum free energy algorithms with the reduced rank modified covariance eigenanalysis algorithm (2003)

Low SNR simulations comparing the minimum-free-energy (MFE) spectral estimation algorithms of Silverstein and Pimbley (1988) with the reduced rank modified covariance eigenanalysis algorithm of Tufts and Kumaresan (1982) have been performed. Two different MFE algorithms are discussed and simulated. The results of the statistical analyses demonstrate that both MFE algorithms are robust, low-variance spectral estimators capable of making reliable frequency estimations of closely spaced sources at very low SNRs, from single snapshot data. They are applicable to the general domain of spectral estimation, while the eigenanalysis algorithms are primarily restricted to line spectra frequency estimation. Nonetheless, for simulations of closely spaced line spectra at low SNRs, the MFE estimations are considerably more robust than the Tufts-Kumaresan estimations.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Variations on China (1971)

to repair the wounds of heaven, but to lie in bed and dream of China burdened by small breasted women and friends
Low-Parametric-Crosstalk Phase-Sensitive Amplifier for Guard-Band-Less DWDM Signal Using PPLN Waveguides (2016)

We demonstrated guard-band-less dense wavelength division multiplex signal amplification with a phase sensitive amplifier (PSA). The PSA consists of periodically poled lithium niobate waveguide that employs two-stage nonlinear process, namely second-harmonic generation and optical parametric amplification, which makes it possible to mitigate the crosstalk induced by the optical parametric interaction between DWDM channels. The PSA amplified 16-channel signals simultaneously with a gain of 17 dB over 12-nm wavelength range. We demonstrated a 2.5-dB signal-to-noise-ratio improvement and a low noise figure of 2.1 dB below the 3-dB quantum limit. We achieved the amplification of a 10-Gbaud quadrature phase shift keying signal with phase and amplitude regeneration.
New approaches for tissue engineering: three dimensional cell patterning using inkjet technology (2008)

Tissues and organs are composed of different types of cells and proteins, which interact and express their respective functions based on their three dimensional (3D) structures. Thus, the position and arrangement of those components including cells are critical for tissue engineering, and it is necessary to develop effective technologies for the arrangement of those materials in 3D space. Inkjet printing technology is able to print with small droplets at high resolution that are nearly equal to microscopic tissue structures. We have attempted to use this technology to print with biological cells instead of standard ink and demonstrated that living cells could be safely ejected with the inkjet procedure. Herein, we briefly introduce and review this new approach of inkjet-based cell patterning, which has good potential as an effective tool for tissue engineering.