gebhart/patrepeval huggingface dataset:
Squeezing the Most Out of Relational Database Systems (2005)

We present compelling experimental evidence of the suitability of FOR compression for many database applications. While there has been some previous and concurrent work on compressing relations, no alternative solution combines the high compression ratios, low over-head, ease of incorporation into an RDBMS, and selective decompression that FOR compression achieves. Overall, we believe that this is a very attractive approach to implementing compression in an RDBMS.
VSB wideband CDMA for overlay system and its implementation (2002)

In this paper, a VSB (vestigial sideband) wideband CDMA system for an overlay system is proposed. The proposed method, which supports gradual evolution from a narrowband CDMA system to a wide-band CDMA system, is evaluated using analysis and simulation. It is likewise described in VHDL and verified and synthesized using Synopsys. Savings on the gate count achieved by introducing CSD-CSCF and common energy calculator is about 30.6%.
ADVERSE EFFECTS OF ARTIFICIAL BUFFERS ON CONTRACTILE RESPONSES OF ARTERIAL AND VENOUS SMOOTH MUSCLE (1980)

1 In vitro studies were undertaken on rat aortic strips and portal vein segments in order to determine whether or not several commonly used artificial buffers, i.e., tris(hydroxymethyl) aminomethane (Tris), N-2-hydroxyethylpiperazine-N'-2-ethanesulphonic acid (HEPES), morpholine propanesulphonic acid (MOPS), N,N bis(2-hydroxyethyl) glycine (BICINE) and 1,4-piperazinediethanesulphonic acid (PIPES), can exert direct actions on vascular smooth muscle. 2 All artificial buffers used in 5 mM concentrations were found to inhibit development of spontaneous mechanical activity. 3 Tris, HEPES, MOPS, BICINE and PIPES markedly attenuated contractions induced by adrenaline, angiotensin and KCl. The fast phase components of the agonist-induced contractions were either obliterated or reduced in the presence of the artificial buffers. The sustained slow phase components were greatly reduced and retarded by the artificial buffers. 4 The relative order of artificial buffer potency (i.e., from 100% to 14% inhibition) seems to depend upon the agonist and type of smooth muscle. 5 All of these inhibitory effects were reversible, since normal contractile responses and spontaneous mechanical activity could be obtained by simply reincubating the smooth muscles in Krebs-Ringer bicarbonate buffer. 6 A variety of pharmacological antagonists failed to mimic or affect the inhibitory effects of Tris, HEPES, MOPS, PIPES and BICINE. 7 These data show that five of the most commonly used artificial buffers, to study muscles in vitro, exert adverse effects on contractility of arterial and venous smooth muscle.
Neuroleptic malignant syndrome associated with abrupt withdrawal of anticholinergic agents (1996)

Neuroleptic malignant syndrome (NMS) is a severe side-effect of neuroleptic treatment. It is usually related to hypodopaminergic activity. A young schizophrenic patient who developed a typical episode of NMS during abrupt withdrawal of long-acting neuroleptic combined with anticholinergic treatment is described. NMS appeared following combined neuroleptic/ anticholinergic withdrawal and responded to procyclidine administration. The appearance of NMS after discontinuation of antidopaminergic treatment seems to be in conflict with the hypodopaminergic theory of this adverse effect. It is suggested that simultaneous withdrawal of both anticholinergic and neuroleptic medications, mainly long-acting neuroleptics, seems to be a risk factor for NMS.
ChemInform Abstract: Electrospray MS Studies of Fullerene Host‐Guest Chemistry (1995)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Adaptive Fuzzy Control for Fuel Reduction of Photovoltaic/Wind/Diesel Power Generating system (1998)

A new adaptive fuzzy control method is developed for reduction of fuel consumption of a diesel generator in a photovoltaic/wind/diesel generating system with a battery. The adaptive fuzzy control method takes two steps of fuzzy inferences. The first fuzzy inference predicts whether the system situation tends to power shortage (s=0) or power surplus (s=1). The input data to the first step are the photovoltaic/wind generator power output PPW and the load demand PL. The second step fuzzy inference determines the diesel generator output. The input data to the second step are s, PPW, PL and the battery charging state. The fuzzy control rules ofs=0 and s=1 are framed by referring to time series results of the system operated by the dynamic programing which is the optimum operation method if time series values of PPW and PL are known. The simulation results show the new adaptive fuzzy control method effectively utilizes the battery to reduce the fuel consumption and suppress the fluctuation of output of the diesel generator.
Novel Ringing Restraining Circuit to Increase the Number of ECUs Connectable in a Linear Passive Star of CAN (2012)

As the number of electronic control units (ECUs) in an automobile steadily increases, demand for increasing the number of ECUs connected to Controller Area Network (CAN) also rises significantly. However, the number of connectable ECUs in a linear passive star of CAN is restricted because of the ringing phenomenon in communication signals. In this paper, the authors propose a ringing restraining circuit activated on high level ringing voltages. As a result, they can expand the number of connectable ECUs in a linear passive star, which enables the construction of low-cost communication networks by reducing the number of gateways. CAN通信ネットワークの接続ECU数を拡張するには波形歪抑制が必須となるため、歪の振幅に応じ動作する歪抑制回路を考案し、試作ICにて歪収束時間の短縮を実証した。これにより接続ECU数を拡張でき、ゲートウェイECUを削減した低コストな通信ネットワークの構築が可能である。
Digital Control of DC-DC Converters Employing Wide Band Gap (WBG) Power Devices (2014)

Next generation power supplies used in particle accelerator infrastructure need to be efficient, compact and reliable with excellent long-term stability and minimal noise in output current. This paper evaluates the performance of silicon carbide (SiC) power MOSFETs and the design and evaluation of a digital control system for dc-dc converters to power electromagnets at Argonne National Laboratory’s Advanced Photon Source. It is shown that the same control system used for a silicon IGBT may be applicable for a SiC power MOSFET in order to achieve the overall system stability while achieving significant reduction in power losses.
Short-reach WDM optical sub-assembly module enabling a passive alignment (2010)

A passively aligned short-reach optical sub-assembly module has been built, taking advantage of a filter free coarse WDM incorporating VCSELs at 780 and 850 nm.
Luminescence Properties of Rare-Earth Doped α-SiAlONs (2006)

Rare-earth doped Ca-α-SiAlON phosphors, with the compositions of (Ca1-3/2xREx)m/2Si12-m-nAlm+nOnN16-n (RE = Ce, Sm, Eu, Tb, Yb and Dy, 0.5 ≤ m = 2n ≤ 3.0), were prepared by reaction at 1700oC for 2h under 10 atm N2. The concentration of rare earths varied from 3 to 30 at% with respect to Ca. The photoluminescence properties of the powders were investigated at room temperature. The results show that (i) strong visible emissions are observed in rare-earth doped Ca-α-SiAlONs; (ii) the emission properties can be optimized by tailoring the activator concentration and the composition of the α-SiAlON host crystal; and (iii) the yellow Eu2+-doped Ca-α-SiAlON phosphors can be used in warm white LEDs.
Mathematical model for a free-flooded piezoelectric cylinder transducer (1986)

A mathematical model for the transmitting response and electrical impedance of a free-flooded, thickness-polarized piezoelectric cylinder transducer has been developed. The elasticity of the cylinder is described using membrane equations which have been modified to account for piezoelectric effects. An additional consequence of the piezoelectricity of the shell is a significant alteration in the boundary conditions for the ends of the cylinder. A particular solution to the membrane equations which satisfies these modified boundary conditions is obtained. The complete solution for the vibration of the cylinder is then found in the form of a sum of the particular solution and the normal modes appropriate to a nonpiezoelectric cylinder with free ends. The acoustic field loads the solution, couples the normal modes, further couples the particular solution and the normal modes, and changes the boundary conditions. The acoustic influence coefficients needed to incorporate these effects are calculated using the ship computer program. The water-loaded normal surface velocities are determined and the surface pressures and farfield radiation characteristics are calculated using ship. The model fully accounts for such effects as the cavity resonance, the velocity of the ends of the cylinder, distribution of velocity along the length of the cylinder, and the difference between the velocity on the inner and outer surfaces of the cylinder. Comparisons between theoretical and experimental results are presented.
Synthesis of Tetraorganylborate Salts:  Photogeneration of Tertiary Amines (2001)

We report the synthesis of a series of new ammonium tetraorganylborates strategically designed to, upon photolysis, generate tertiary amines. Experiments in acetonitrile show amine formation in reasonably high quantum yield that depends on the photoreactive acceptor, the borate, and the substituents on the nitrogen atom. The reactive triplet state is reduced by the borate, and this is followed by rapid homolysis of the carbon−nitrogen bond.
Feature Tracking for Mobile Augmented Reality Using Video Coder Motion Vectors (2007)

We propose a novel, low-complexity, tracking scheme that uses motion vectors directly from a video coder. We compare our tracking algorithm against ground truth data, and show that we can achieve a high level of accuracy, even though the motion vectors are rate-distortion optimized and do not represent true motion. We develop a framework for tracking in video sequences with various GOP structures. Such a scheme would find applications in the context of Mobile Augmented Reality. The proposed feature tracking algorithm can significantly reduce the required rate of feature extraction and matching.
Real-time In situ Sensors and Control Integration for Life Support Systems (1991)

&lt;div class="htmlview paragraph"&gt;Successful operation of life support systems for human exploration of space will depend largely on in situ sensors and integration of these sensors to an autonomous control architecture. The complexity of a life support system demands that these sensors be uniquely qualified for a number of specific applications. Such applications may require multifunctional monitoring of the sensor environment and intelligent interaction with other sensors and control elements. In situ sensors found in the chemical processing industry are largely not multifunctional and not necessarily selected for minimal weight, volume and power demand. Therefore, the state-of-the-art for in situ sensors found in the chemical processing industries is not directly transferrable to life support applications. Highly autonomous life support systems require reliable chemical, physical and biosensors requiring little maintenance and which are highly fault-tolerant. These sensors will operate in a hierarchical network involving distributed databases, prediction models, rule-based reasoning modules for hypothesis generation and verification, controllers and final control elements. This paper discusses the limitations of the state-of-the-art for in situ sensors and argues in favor of a program of adaptation and enhancement of off-the-shelf sensor technologies and of research and innovation to develop more appropriate sensor technologies for life support systems. This paper also discusses briefly the desirable characteristics of smart sensors for life support applications and presents some preliminary concepts for hierarchical integration of in situ sensors and control elements.&lt;/div&gt;
Design of Clinical Trials in AKI (2012)

AKI remains an important clinical problem, with a high mortality rate, increasing incidence, and no Food and Drug Administration-approved therapeutics. Advances in addressing this clinical need require approaches for rapid diagnosis and stratification of injury, development of therapeutic agents based on precise understanding of key pathophysiological events, and implementation of well designed clinical trials. In the near future, AKI biomarkers may facilitate trial design. To address these issues, the National Institute of Diabetes and Digestive and Kidney Diseases sponsored a meeting, "Clinical Trials in Acute Kidney Injury: Current Opportunities and Barriers," in December of 2010 that brought together academic investigators, industry partners, and representatives from the National Institutes of Health and the Food and Drug Administration. Important issues in the design of clinical trials for interventions in AKI in patients with sepsis or AKI in the setting of critical illness after surgery or trauma were discussed. The sepsis working group discussed use of severity of illness scores and focus on patients with specific etiologies to enhance homogeneity of trial participants. The group also discussed endpoints congruent with those endpoints used in critical care studies. The second workgroup emphasized difficulties in obtaining consent before admission and collaboration among interdisciplinary healthcare groups. Despite the difficult trial design issues, these clinical situations represent a clinical opportunity because of the high event rates, severity of AKI, and poor outcomes. The groups considered trial design issues and discussed advantages and disadvantages of several short- and long-term primary endpoints in these patients.
High-efficiency base editing for Stargardt disease in mice, non-human primates, and human retina tissue (2023)

ABSTRACT Stargardt disease is a currently untreatable, inherited neurodegenerative disease that leads to macular degeneration and blindness due to loss-of-function mutations in the ABCA4 gene. We have designed a dual adeno-associated viral vector split-intein adenine base-editing strategy to correct the most common mutation in ABCA4 (c.5882G&gt;A, p.G1961E). We optimized ABCA4 base editing in human models, including retinal organoids, iPSC-derived retinal pigment epithelial (RPE) cells, as well as adult human retinal- and RPE/choroid explants in vitro. The resulting gene therapy vectors achieved high levels of gene correction in mutation-carrying mice and in non-human primates, with an average editing of 37% of photoreceptors and 73% of RPE cells in vivo. The high editing rates in primates make way for precise and efficient gene editing in other neurodegenerative ocular diseases.
Simplified dynamics and control of Modular Multilevel Converter based on a terminal behavioral model (2012)

Modular Multilevel Converters (MMCs) are emerging to be an attractive approach for high power applications. Equivalent circuit models and dynamic models for the MMC that provide a faithful representation of system behavior are quite complex given the large number of energy states and control variables. They are not particularly useful in studying the terminal behavior of the converter and for the development of an intuitive control approach to regulate power transfer. This paper reduces the complexity of the MMC analytical model to an equivalent boost-buck converter circuit while providing particularly insightful transparency of the converter's physical operation from a terminal perspective. A control approach which manages throughput power as well as the MMCs internal capacitive states based on terminal quantities is developed eliminating individual feedback of module capacitor voltages to a centralized controller. An extension of the control to mitigate the circulating currents within the MMC caused by bridge voltage harmonics is also developed. The transformed boost-buck converter model and control performance are verified using simulations and experiments using a laboratory scale prototype.
Puupehenone-related metabolites from two Hawaiian sponges, Hyrtios spp. (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPuupehenone-related metabolites from two Hawaiian sponges, Hyrtios spp.Stephanie S. Nasu, Bryan K. S. Yeung, Mark T. Hamann, Paul J. Scheuer, Michelle Kelly-Borges, and Keith GoinsCite this: J. Org. Chem. 1995, 60, 22, 7290–7292Publication Date (Print):November 1, 1995Publication History Published online1 May 2002Published inissue 1 November 1995https://doi.org/10.1021/jo00127a039Request reuse permissionsArticle Views336Altmetric-Citations81LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (326 KB) Get e-AlertscloseSupporting Info (2)»Supporting Information Supporting Information Get e-Alerts
MOOC Adventures in Signal Processing: Bringing DSP to the era of massive open online courses (2016)

In higher education circles, 2012 may be known as the "year of the MOOC"; the launch of several high-profile initiatives, both for profit (Coursera, Udacity) and not for profit (edX), created an electrified feeling in the community, with massive open online courses (MOOCs) becoming the hottest new topic in academic conversation. The sudden attention was perhaps slightly forgetful of many notable attempts at distance learning that occurred before, from campus TV networks to well-organized online repositories of teaching material. The new mode of delivery, however, was ushered in by a few large-scale computer science courses, whose broad success triggered significant media attention [1].
The pineapple genome and the evolution of CAM photosynthesis (2015)

Pineapple (Ananas comosus (L.) Merr.) is the most economically valuable crop possessing crassulacean acid metabolism (CAM), a photosynthetic carbon assimilation pathway with high water-use efficiency, and the second most important tropical fruit. We sequenced the genomes of pineapple varieties F153 and MD2 and a wild pineapple relative, Ananas bracteatus accession CB5. The pineapple genome has one fewer ancient whole-genome duplication event than sequenced grass genomes and a conserved karyotype with seven chromosomes from before the ρ duplication event. The pineapple lineage has transitioned from C3 photosynthesis to CAM, with CAM-related genes exhibiting a diel expression pattern in photosynthetic tissues. CAM pathway genes were enriched with cis-regulatory elements associated with the regulation of circadian clock genes, providing the first cis-regulatory link between CAM and circadian clock regulation. Pineapple CAM photosynthesis evolved by the reconfiguration of pathways in C3 plants, through the regulatory neofunctionalization of preexisting genes and not through the acquisition of neofunctionalized genes via whole-genome or tandem gene duplication.
Evaluating servers with commercial workloads (2003)

Commercial workloads, which differ markedly from scientific and technical workloads, can more accurately evaluate new server designs.
Lattice-matched multijunction solar cells employing a 1 eV GaInNAsSb bottom cell (2012)

Over the past 15 years, tremendous effort has been put forth into increasing the efficiency of multijunction solar cells used in concentrator photovoltaics (CPV) systems. Because the cell represents a small portion of the total CPV system cost, modest improvements in cell efficiencies have a large impact on reducing the levelized cost of electricity. To address the need for higher efficiency CPV cells, Solar Junction is currently manufacturing a lattice-matched multijunction solar cell that employs a 1 eV GaInNAsSb bottom subcell in lieu of the traditional Ge subcell. Our standard 5.5 mm 2 product has recently achieved a world record in power conversion efficiency. In this article, we report on the design, performance, and integration of this high-performance cell. The importance of overdriving the GaInNAsSb bottom subcell is discussed in addition to the optimization of the anti-reflection coating used for cells under glass secondary optics.
Clean Production of Hydrogen via Laser-Induced Methane Conversion (2005)

A novel technique based on the multi-photon dissociation of methane for hydrogen production has been developed. The study was carried out with a simple setup using UV laser radiation at 355 nm wavelength. The hydrogen yield achieved at ambient temperature and one atmospheric pressure is 6.6 mole %. The conversion process of methane to produce hydrogen was investigated under different experimental parameters such as laser exposure time, laser power, and methane pressure. The quantum efficiency of these processes was also estimated. The maximum quantum efficiency of 42% was attained for 30 minutes of laser exposure of methane at 1 atmospheric pressure.
Minimal model SI=0 problem in NIDDM subjects: nonzero Bayesian estimates with credible confidence intervals (2002)

The minimal model of glucose kinetics, in conjunction with an insulin-modified intravenous glucose tolerance test, is widely used to estimate insulin sensitivity (S I ). Parameter estimation usually resorts to nonlinear least squares (NLS), which provides a point estimate, and its precision is expressed as a standard deviation. Applied to type 2 diabetic subjects, NLS implemented in MINMOD software often predicts S I =0 (the so-called “zero” S I problem), whereas general purpose modeling software systems, e.g., SAAM II, provide a very small S I but with a very large uncertainty, which produces unrealistic negative values in the confidence interval. To overcome these difficulties, in this article we resort to Bayesian parameter estimation implemented by a Markov chain Monte Carlo (MCMC) method. This approach provides in each individual the S I a posteriori probability density function, from which a point estimate and its confidence interval can be determined. Although NLS results are not acceptable in four out of the ten studied subjects, Bayes estimation implemented by MCMC is always able to determine a nonzero point estimate of S I together with a credible confidence interval. This Bayesian approach should prove useful in reanalyzing large databases of epidemiological studies.
Preparation, Vibrational Spectra, Normal Coordinate Analysis, and Structures of bis-Pyridine and Orthophenanthroline Complexes of Mixed Halogenosilanes (1972)

The compounds py 2 SiCl 3 X (where X = H, F, or Br), py 2 SiCl 2 X 2 (where X = F or Br) and the corresponding orthophenanthroline complexes are prepared and the vibrational spectra reported for the first time. Using a combination of the vibrational data and normal coordinate calculations, the stereochemistries may be defined for most of the complexes. Preferences for certain configurations in the series are qualitatively discussed in terms of the spatial requirements of the various atoms and groups within each complex.