gebhart/patrepeval huggingface dataset:
Pattern recognition by local radial moments (2002)

Identification of images irrespective of their location, size or orientation is one of the important tasks in pattern analysis. Use of global moment features has been one of the most popular techniques for this purpose. The authors present a simple and effective method for image representation and identification which utilizes local radial moments of segments of image as features as opposed to global features and a simple classifier such as the nearest-neighbor classifier. The technique does not require translation, scaling or rotation of the image itself. Furthermore, it is suitable for parallel implementation and hence is useful for real-time applications. The classification capability of the technique is demonstrated by experiments on scaled, rotated and noisy images of upper and lower case characters and digits of the English alphabet.
Preparation of Au/TiO2 for catalytic preferential oxidation of CO under a hydrogen rich atmosphere at around room temperature (2004)

Au/TiO2 prepared in a pH adjusted gold solution by a deposition-precipitation method can possess high activity and stability for selective CO oxidation in a H2 rich stream at ambient temperature.
Phosphoinositide 3-Kinases in Inunimity: Lessons from Knockout Mice (2002)

Phosphoinositide 3-kinases (PI3Ks) constitute a family of evolutionarily conserved lipid kinases that phosphorylate the D3 position of the inositol ring of phosphoinositides and produce PI(3)P, PI(3,4)P(2), and PI(3,4,5)P(3). Intense in vitro research over the last decade has unequivocally demonstrated that PI3Ks, in particular those belonging to class I, regulate a vast array of fundamental cellular responses. Given the pleiotropic roles of PI3Ks and the lipid product PI(3,4,5)P(3) in plethora of cellular responses, it is pertinent to explore the significance of PI3K signaling in vivo. In the past two or three years, the components of this signaling pathway have been genetically manipulated in mouse. This review briefly summarizes the immunological significance of PI3K signaling as revealed by the study of gene-targeted "knockout" mice.
ANTIBACTERIAL ACTIVITY OF TWO SPECIES OF BRYOZOANS FROM NORTHERN PUGET SOUND (1998)

For the first time, bryozoan species from northern Puget Sound have been shown to contain antibacterial compounds. The antibacterial activity of two local marine cheilostome species was tested against six strains of local marine bacteria and against stock cultures of Vibrio anguillarium, Bacillus subtilis, Staphylococcus aureus, and Escherichia coli. The filter paper disc method was used to test for antibacterial activity. A crude extract made from the bryozoan Bugula pacifica inhibited the growth of two marine isolates, as well as B. subtilis, S. aureus, and E. coli. A crude extract made from the bryozoan Tricellaria occidentalis inhibited the growth of B. subtilis. Preliminary scanning electron microscopy data indicate that Tricellaria occidentalis had higher densities of surface bacteria than Bugula pacifica. This inverse relationship between antibacterial activity and surface fouling may indicate an antifouling role for these bryozoan secondary metabolites. The presence of antibacterial compounds may allow bryozoans to manipulate the microbial film growing on them, and may influence the types of organisms that are able to settle near or on them. The ability to manipulate microbial films may also enable bryozoans to make the substrate nearby more suitable for the settlement of their own larvae
Carbon in semi-insulating, liquid encapsulated Czochralski GaAs (1984)

We have investigated undoped, semi-insulating GaAs, grown by the liquid encapsulated Czochralski technique in pyrolytic BN crucibles. The concentration of carbon, the principal shallow acceptor, depends on the water content of the B2O3 encapsulant. Dry B2O3 (100–150 ppm H2O) results in carbon concentrations as high as 8×1015 cm−3, while wet B2O3 (500 ppm H2O) results in carbon concentrations below the detection limit of 3–5×1014 cm−3. In samples with carbon below 5×1014 cm−3, the compensation (acceptors minus donors shallower than EL2) is also low, and the room-temperature carrier concentration can exceed 1011 cm−3. For samples with carbon above 5×1014 cm−3, the room-temperature carrier concentration is below 5×107 cm−3 for all samples measured. The compensation is less than the carbon concentration in high carbon samples, indicating that donors shallower than EL2 are significant in determining the value of the compensation in these samples.
Synthesis of small cyclic peptides containing disulfide bonds (2006)

Four cyclopeptides containing disulfide linkages were efficiently synthesized using DCC as coupling reagent under highly dilute conditions.
<title>Design of a MIMD neural network processor</title> (1994)

The Accurate Automation Corporation (AAC) neural network processor (NNP) module is a fully programmable multiple instruction multiple data (MIMD) parallel processor optimized for the implementation of neural networks. The AAC NNP design fully exploits the intrinsic sparseness of neural network topologies. Moreover, by using a MIMD parallel processing architecture one can update multiple neurons in parallel with efficiency approaching 100 percent as the size of the network increases. Each AAC NNP module has 8 K neurons and 32 K interconnections and is capable of 140,000,000 connections per second with an eight processor array capable of over one billion connections per second.
P<scp>ROTEIN AND</scp> A<scp>MINO</scp> A<scp>CID</scp> M<scp>ETABOLISM</scp> D<scp>URING AND</scp> A<scp>FTER</scp> E<scp>XERCISE AND THE</scp> E<scp>FFECTS OF</scp> N<scp>UTRITION</scp> (2000)

Sustained dynamic exercise stimulates amino acid oxidation, chiefly of the branched-chain amino acids, and ammonia production in proportion to exercise intensity; if the exercise is intense enough, there is a net loss of muscle protein (as a result of decreased protein synthesis, increased breakdown, or both); some of the amino acids are oxidized as fuel, whereas the rest provide substrates for gluconeogenesis and possibly for acid-based regulation. Protein balance is restored after exercise, but no hypertrophy occurs with habitual dynamic exercise. Resistance exercise causes little change in amino acid oxidation but probably depresses protein synthesis and elevates breakdown acutely. After exercise, protein synthesis rebounds for </=48 h, but breakdown remains elevated, and net positive balance is achieved only if amino acid availability is increased. There is no evidence that habitual exercise increases protein requirements; indeed protein metabolism may become more efficient as a result of training.
Southern Thoracic Surgery (1975)

The different cultures of North and South produced surgeons with subtle but identifiable differences in approaches to thoracic surgery. Some of these factors still represent a strength of the Southern thoracic surgeon, who is, at least spiritually, a descendant of early Southern surgical leaders. Background, contributions, observations, and attitudes of surgeons of the Confederate States of America are examined. Southern thoracic surgeons are urged to demand intellectual accomplishment and scientific achievement, even in the face of a changing, unstable, unpredictable sociopolitical environment of which we have little understanding and even less control.
Towards a Domain Independent Platform for Data Cleaning. (2011)

We present a domain independent platform for data cleaning developed as part of the Data Cleaning project at Microsoft Research. Our platform consists of a set of core primitives and design tools that allow a programmer to develop sophisticated data cleaning solutions with minimal programming effort. Our primitives are designed to allow rich domain and application specific customizations and can efficiently handle large inputs. Our data cleaning technology has had significant impact on Microsoft products and services and has been successfully used in several real-world data cleaning applications. 1
A Study of Mercaptan Chemistry. (1930)

ADVERTISEMENT RETURN TO ISSUEPREVArticleA Study of Mercaptan Chemistry.William Marias. Malisoff, Ernest M. Marks, and Fred G. HessCite this: Chem. Rev. 1930, 7, 4, 493–547Publication Date (Print):December 1, 1930Publication History Published online1 May 2002Published inissue 1 December 1930https://pubs.acs.org/doi/10.1021/cr60028a003https://doi.org/10.1021/cr60028a003research-articleACS PublicationsRequest reuse permissionsArticle Views996Altmetric-Citations12LEARN 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 InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Effects of Charge Build-up of Underlying Layer by High Aspect Ratio Etching (1998)

The effects of the “electron shading” charge build-up at the bottom of holes are investigated using fluorocarbon gas plasma. The etch rates of the electrically conductive films such as phosphorus-doped polysilicon at the bottom of the holes change depending on whether the films are patterned or not. This is caused by the decrease of the low-energy ions which reach the bottom of the holes due to positive charging of the underlying layers. Furthermore, the potential at the bottom of the contact holes is investigated using metal-nitride-oxide-silicon (MNOS) capacitors. The positive charging due to the electron shading effect is measured. In order to reduce the electron shading charge build-up, the pulse-modulated plasma is investigated. The selectivity to the underlying layer increases upon using pulse-modulated plasma.
Prognostic effect of programmed death-ligand 1 (PD-L1) in ovarian cancer: a systematic review, meta-analysis and bioinformatics study (2019)

Meta-analysis showed that PD-L1 may not be a prognostic factor for ovarian cancer. But a bioinformatics study showed that PD-L1 expression was significantly associated with worse PFS of ovarian cancer. More clinical studies are needed to further validate these findings.
HEMT modelling using semi-physical expressions for the equilibrium space-charge parameters of the modulation-doped heterojunction (1999)

Simple expressions are derived for the 2-DEG concentration in the lightly doped side and the partially depleted space-charge width on the heavily doped side of a modulation-doped heterojunction under equilibrium. The derivation employs physical reasoning to determine the mathematical form of the expressions and fixes the constants in the form empirically so that the results of the expressions agree with those of numerical calculations. It is shown that the expressions derived enable an easy estimation of the maximum gate voltage swing, and can be used to construct a mathematical representation of the nonlinear gradual saturation segment of the 2-DEG concentration against gate voltage characteristics, for circuit simulation purposes.
Fabricating With Liquid Silicone Rubber (1978)

During the last several years, new systems have been developed for the production of silicone rubber parts. These systems offer major reductions in both capital and labor costs. This paper discusses these developments with an emphasis on material properties and potential benefits to the user. The principal methods used to produce molded parts and supported extrusions from liquid silicone rubber are described. Advantages of these systems include quick cure, pumpability, ease of use and lack of solvents. Data documenting the good heat stability, flame retardance, and improved compression set characteristics of the liquid silicone rubbers are presented. In addition, case histories will illustrate the primary benefit of reduced cost per finished part derived from the fast cycle times, lower energy requirements and automation available from this new technology.
Effects of tax reforms in a shirking model with union bargaining (2004)

In this paper we introduce a progressive income tax in the shirking model with union bargaining presented by in Altenburg and Straub (2002). Indeed, we differentiate taxation on employees and employers for the fiscal policy analysis. The main results show that it is possible, with a constant revenue reform, to enhance employment by shifting the tax imposition towards lower firm taxation. And, that it is crucial to consider a proportional or progressive taxation on labour income in order to be able to analyse the effect on unemployment for a constant replacement rate.
The Emerging Role of Apelin in Cardiovascular Disease and Health (2009)

This article focuses on a newly discovered bioactive peptide, termed apelin, as it relates to the cardiovascular system. Apelin, through its G-protein coupled receptor, seems to primarily exert effects in blood pressure control, and may play a role in heart failure and in myocardial reperfusion injury. In addition, at least some of apelin's effects appear to stem from an interaction with the renin-angiotensin system. Apelin may provide a target for drug treatment of cardiovascular disease.
Spectra and Reactivity of Methoxyoligothiophene Cation Radicals (1996)

A set of α-coupled oligothiophenes, dimer through hexamer, was studied. Each oligomer was terminated with two methyl groups and was substituted with two or four methoxy groups. Electrochemical studies showed that methoxy groups substituted at “inside” β-positions on the terminal rings (positions toward the center of the chain) gave stable cation radicals. The E0 values for the reversible couples were 0.24−0.52 V (SCE). The changes in E0 with structure were explained using PPP molecular orbital calculations. Cation radicals were generated using either chemical or electrochemical oxidation, and in several cases stable salts were isolated. The vis−near-IR spectra of the cation radicals were recorded. In CH2Cl2 solvent the cation radicals were monomeric and showed two π−π*-bands, which shifted to longer wavelength with oligomer length. In CH3CN solvent the cation radicals were primarily in the form of π-dimers, which showed two π−π*-bands and a charge transfer band at longer wavelength in the near-IR. All three bands shifted to longer wavelength with oligomer length. The equilibrium constant for dimerization increased by a factor of 103 on going from a terthiophene to a quinquethiophene. Spectra of oligomers terminated with hydrogens or dimethylphenylsilyl groups showed that steric effects of the small hydrogen and bulky silyl group on π-dimerization were very small. Methyl-terminated oligomers substituted with “outside” methoxy in the terminal rings gave rather positive oxidation potentials and unstable cation radicals. In one case, the cation radical decomposition products were studied and it was shown that reactions had occurred on a terminal methyl group.
γ-Tocopherol or combinations of vitamin E forms induce cell death in human prostate cancer cells by interrupting sphingolipid synthesis (2004)

gamma-Tocopherol (gammaT), the predominant form of vitamin E in diets, but not alpha-tocopherol, the major vitamin E form in tissues and supplements, inhibits proliferation of prostate cancer cells (LNCaP and PC-3) and lung cancer cells (A549). In contrast, at similar concentrations, gammaT has no effect on normal prostate epithelial cells. Combinations of some vitamin E forms, such as gammaT and delta-tocopherol, exhibit additive or synergistic inhibitory effects. In this study, gammaT or its combination with delta-tocopherol induced apoptosis in androgen-sensitive prostate LNCaP, but not in androgen-resistant PC-3 cells, by the induction of cytochrome c release, activation of caspase 9 and caspase 3, cleavage of poly-ADP-ribose polymerase (PARP), and involvement of caspase-independent pathways. Myriocin and fumonisin B1, specific inhibitors of key enzymes (serine palmitoyltransferase and dihydroceramide synthase, respectively) in de novo synthesis of sphingolipids, significantly protected cells from gammaT-induced DNA fragmentation, cytochrome c release, PARP cleavage, and the formation of active caspase 3. Compared with vehicle-treated controls, gammaT treatment led to pronounced dihydroceramide and dihydrosphingosine accumulation, which preceded morphological and biochemical manifestations of apoptosis. In contrast, ceramide and shpingosine levels did not increase until day 3, when substantial cell death took place. Our study demonstrates that gammaT and mixed vitamin E forms induce cell death by interrupting the de novo sphingolipid pathway in a prostate cancer cell line. Thus, certain vitamin E forms may be valuable as anticancer agents.
Effect of Drift Retardant Chemicals on Spray Drift, Droplet Size and Spray Pattern (1993)

Specific objectives of this study were to determine the effects of various drift retardant chemicals (Direct, Driftgard, Formula 358, Nalco-trol, and Target) on droplet size, spray pattern, and spray drift reduction. The results of this study indicated that, at recommended rates, Nalco-trol provided the largest increase in volume median diameters of the sprays followed by Direct, Target, Driftgard, and Formula 358. In general all drift retardants created patterns with greater volume toward the center than that of water only. Cumulative deposits beyond 0.5 m downwind increased for all drift retardants when the wind velocity was increased from 2.0 to 4.0 m/s. The least amount of downwind deposit beyond 0.5 m at 4.0 m/s was with Nalco-trol followed by Target, Driftgard, Direct and Formula 358. In general, a comparison of the spray deposits from mixtures containing drift retardants on horizontal targets and vertical strings indicated that Nalco-trol and Target were the most effective in reducing spray drift followed by Direct, Driftgard, and Formula 358.
Metal surface inspection using image processing techniques (1984)

The feasibility of applying image processing techniques to metal surface inspection is demonstrated. Two methods for metal surface inspection are described. In the first method, the metal surface reflective power and the metal surface normal are related by a random surface scattering model. The metal surface profile can then be computed from the metal surface normal. The second method applies pattern recognition techniques to classify metal surfaces into classes of different roughness. Methods of feature extraction and classification have been tested experimentally and the performances of different types of classifier have been compared. A two-level tree classifier using nonparametric linear classifiers at each node gives better than 90% correct classification on the testing set.
Recent Progress in NOx Trap Technology (1998)

<div class="htmlview paragraph">Emission of carbon dioxide from mobile sources is receiving interest as part of a coordinated approach to limit greenhouse gases. Coupled with the relatively high price of gasoline in some countries this has resulted in the development of lean burn and direct injection gasoline engines. These engines will require conversion of nitrogen oxides (NOx) in excess of 70% in a net oxygen rich exhaust stream to meet future emission limits.</div> <div class="htmlview paragraph">This paper describes recent advances in the performance of NOx trap technology in terms of adsorption capacity, temperature of operation and thermal durability. The application of a new NOx trap together with a newly developed starter catalyst, to a direct injection gasoline vehicle shows that European stage IV limits can be reached for NOx and CO with a fresh system.</div>
An evaluation of look-ahead breadcrumbs for the WWW (2005)

Article An evaluation of look-ahead breadcrumbs for the WWW Share on Authors: James Blustein Dalhousie University, Halifax, NS, Canada Dalhousie University, Halifax, NS, CanadaView Profile , Ishtiaq Ahmed Dalhousie University, Halifax, NS, Canada Dalhousie University, Halifax, NS, CanadaView Profile , Keith Instone IBM.com IBM.comView Profile Authors Info & Claims HYPERTEXT '05: Proceedings of the sixteenth ACM conference on Hypertext and hypermediaSeptember 2005 Pages 202–204https://doi.org/10.1145/1083356.1083394Published:06 September 2005 6citation772DownloadsMetricsTotal Citations6Total Downloads772Last 12 Months16Last 6 weeks0 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access
Patterns of English phoneme confusions by native and non-native listeners (2004)

Native American English and non-native (Dutch) listeners identified either the consonant or the vowel in all possible American English CV and VC syllables. The syllables were embedded in multispeaker babble at three signal-to-noise ratios (0, 8, and 16 dB). The phoneme identification performance of the non-native listeners was less accurate than that of the native listeners. All listeners were adversely affected by noise. With these isolated syllables, initial segments were harder to identify than final segments. Crucially, the effects of language background and noise did not interact; the performance asymmetry between the native and non-native groups was not significantly different across signal-to-noise ratios. It is concluded that the frequently reported disproportionate difficulty of non-native listening under disadvantageous conditions is not due to a disproportionate increase in phoneme misidentifications.