gebhart/patrepeval huggingface dataset:
PEDS: A Parallel Error Detection Scheme for TCAM Devices (2009)

Ternary content-addressable memory (TCAM) devices are increasingly used for performing high-speed packet classification. A TCAM consists of an associative memory that compares a search key in parallel against all entries. TCAMs may suffer from error events that cause ternary cells to change their value to any symbol in the ternary alphabet "0","1","*". Due to their parallel access feature, standard error detection schemes are not directly applicable to TCAMs; an additional difficulty is posed by the special semantic of the "*" symbol. This paper introduces PEDS, a novel parallel error detection scheme that locates the erroneous entries in a TCAM device. PEDS is based on applying an error-detection code to each TCAM entry, and utilizing the parallel capabilities of the TCAM, by simultaneously checking the correctness of multiple TCAM entries. A key feature of PEDS is that the number of TCAM lookup operations required to locate all errors depends on the number of symbols per entry rather than the (orders-of-magnitude larger) number of TCAM entries. For large TCAM devices, a specific instance of PEDS requires only 200 lookups for 100-symbol entries, while a naive approach may need hundreds of thousands lookups. PEDS allows flexible and dynamic selection of trade-off points between robustness, space complexity, and number of lookups.
Hepatitis B virus X protein interacts with a probable cellular DNA repair protein (1995)

The mechanism of action of hepatitis B virus (HBV) X protein in transcriptional transactivation and in tumorigenesis remains obscure. We have used the yeast two-hybrid system to identify a cellular protein that can interact with HBV X protein. This protein, designated X-associated protein 1 (XAP-1), is a human homolog of the UV-damaged DNA-binding protein (UV-DDB) recovered from a monkey cell cDNA library. UV-DDB is presumed to be involved in DNA repair. The interaction between X protein and XAP-1 protein was verified by immunoprecipitation of yeast cell lysates expressing both proteins and by in vitro mixing with X protein expressed as a glutathione S-transferase fusion protein and XAP-1 protein either in HeLa cell extracts or synthesized by in vitro translation. We speculate that the interaction of X protein with a DNA repair protein may recruit cellular proteins to repair the partially double-stranded HBV genome or may modify cellular transcription processes. An effect on the cellular DNA repair system may explain a cofactor role for HBV in liver cancer development.
EFFICIENT IMPLEMENTATIONS OF APRIORI AND ECLAT (2003)

Apriori and Eclat are the best-known basic algorithms for mining frequent item sets in a set of transactions. In this paper I describe implementations of these two algorithms that use several optimizations to achieve maximum performance, w.r.t. both execution time and memory usage. The Apriori implementation is based on a prefix tree representation of the needed counters and uses a doubly recursive scheme to count the transactions. The Eclat implementation uses (sparse) bit matrices to represent transactions lists and to filter closed and maximal item sets. 1.
Noncontact Technique for the Local Measurement of Semiconductor Resistivity (1965)

A method is described for finding the local resistivity of a semiconductor crystal by measuring the radio frequency spreading resistance of a small probe placed on a flat surface of the sample. The method is nondestructive and does not require the attachment of electrical contacts. The resistivity measured is that of the material lying within a hemisphere of about 1 mm radius; measurements have been made over the range 0.1–100 Ω cm with good accuracy above 0.5 Ω cm.
Robust semantic analysis by synthesis of 3D facial motion (2011)

Rich face models already have a large impact on the fields of computer vision, perception research, as well as computer graphics and animation. Attributes such as descriptiveness, semantics, and intuitive control are desirable properties but hard to achieve. Towards the goal of building such high-quality face models, we present a 3D model-based analysis-by-synthesis approach that is able to parameterize 3D facial surfaces, and that can estimate the state of semantically meaningful components, even from noisy depth data such as that produced by Time-of-Flight (ToF) cameras or devices such as Microsoft Kinect. At the core, we present a specialized 3D morphable model (3DMM) for facial expression analysis and synthesis. In contrast to many other models, our model is derived from a large corpus of localized facial deformations that were recorded as 3D scans from multiple identities. This allows us to analyze unstructured dynamic 3D scan data using a modified Iterative Closest Point model fitting process, followed by a constrained Action Unit model regression, resulting in semantically meaningful facial deformation time courses. We demonstrate the generative capabilities of our 3DMMs for facial surface reconstruction on high and low quality surface data from a ToF camera. The analysis of simultaneous recordings of facial motion using passive stereo and noisy Time-of-Flight camera shows good agreement of the recovered facial semantics.
Orientation measurement of piece parts using single-layer networks (2003)

A technique for measuring the orientation of elongated planar objects using a number of single-layer networks is presented. This technique has been developed to be used in a noisy multiobject environment and can cope with object registration. The network consists of five discriminators, each of which has the capability to detect the directionality of an object in a certain range of angles. The memory elements of each discriminator are divided into groups. The memory elements within each group are summed and thresholded, and the outputs of the various groups within each discriminator are summed to form the output coming from the various discriminators. The connection of the memory elements is arranged in this way in order to detect the direction of the rectangle which confines the object. The network can measure the orientation of an object in the range of -10 degrees to +90 degrees , but this is because only five discriminators were used in the present experiment.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Mobility Enhancement by Back-Gate Biasing in Ultrathin SOI MOSFETs With Thin BOX (2012)

Carrier mobility (μ) at various back-gate biases is studied for nand p-channel ultrathin (8 nm) SOI MOSFETs with thin (10 nm) buried oxide (BOX) and ground plane (GP). We found that μ did not deteriorate for either thin BOX or GP structure, even in the back channel (BC). We also found the largest μ enhancement effect in p-channel devices by the back-gate bias. As this enhancement effect could conceal the superior μ at the Si/SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> interface, μ was maximized when both the front channel and BC were conducting. By contrast, μ in n-channel devices was maximized only when the BC was activated. This large μ gain in p-channel devices is promising for further CMOS scaling.
Improvement of the optical signal-to-noise ratio in common-path holographic storage by use of a polarization-controlling media structure (2005)

A holographic storage arrangement with common-path optics is likely to suffer from degradation of the optical signal-to-noise ratio (SNR) owing to scattering of the reference beam. Instead of the conventional method of spatial separation between the reference beam and a reconstruction beam, adoption of a combined spatial and polarization separation is proposed. To achieve polarization separation by using a photopolymer as the recording material, a media structure including retardation films and a reflection layer is proposed such that the polarization states of the two beams are the same inside the material but orthogonal outside. Preliminary experiments to show the feasibility of this idea for improving optical SNR are also demonstrated.
Rapid Stability Indicating Uv-Assay of Methenamine Mandelate In Tablets Using Solid Phase Extraction (1989)

Abstract A rapid stability-indicating method was developed to quantitatively determine methenamine mandelate in tablets. After dissolution of the sample in water methenamine is separated from its decomposition product formaldehyde by the use of solid-phase extraction. the determination of methenamine may then be carried out by several procedures. A spectrophotometric assay following hydrolysis of methenamine to formaldehyde appeared to be most suitable. The simplicity and accuracy of the method compares favourable with the U.S.P. XXI method. the procedure can be advantageously used in stability and quality control studies of methenamine containing dosage forms. Precision and accuracy were checked by comparing the results of 10 identical raw material samples and 10 tablet samples that were both assayed by this method and the USP XXI procedure (Tables 4 and 5). The assay values for methenamine and the relative standard deviations were similar for both procedures in both raw material and tablets. Above results show that the SPE procedures give accurate, precise and reliable values for the methenamine assay. Since no titrant standardizations or lengthly sample pretreatments have to be carried out the method is fast, which makes it very suitable for industrial quality control purposes. the method is also economical. No precious instruments are necessary; a simple colorimetric device is sufficient. The extraction columns can be reused several times. Even after 10 regenerations the columns did not show any deterioration. Key Words: Methenamine MandelateSolid Phase ExtractionStability Indicating Assay
An In Vitro Study of the Probiotic Potential of a Bile-Salt-Hydrolyzing <i>Lactobacillus fermentum</i> Strain, and Determination of Its Cholesterol-Lowering Properties (2003)

This study evaluated the use of a bile-salt-hydrolyzing Lactobacillus fermentum strain as a probiotic with potential hypocholesterolemic properties. The effect of L. fermentum on representative microbial populations and overall metabolic activity of the human intestinal microbiota was investigated using a three-stage continuous culture system. Also, the use of galactooligosaccharides as a prebiotic to enhance growth and/or activity of the Lactobacillus strain was evaluated. Administration of L. fermentum resulted in a decrease in the overall bifidobacterial population (ca. 1 log unit). In the in vitro system, no significant changes were observed in the total bacterial, Lactobacillus, Bacteroides, and clostridial populations through L. fermentum supplementation. Acetate production decreased by 9 to 27%, while the propionate and butyrate concentrations increased considerably (50 to 90% and 52 to 157%, respectively). A general, although lesser, increase in the production of lactate was observed with the administration of the L. fermentum strain. Supplementation of the prebiotic to the culture medium did not cause statistically significant changes in either the numbers or the activity of the microbiota, although an increase in the butyrate production was seen (29 to 39%). Results from this in vitro study suggest that L. fermentum KC5b is a candidate probiotic which may affect cholesterol metabolism. The short-chain fatty acid concentrations, specifically the molar proportion of propionate and/or bile salt deconjugation, are probably the major mechanism involved in the purported cholesterol-lowering properties of this strain.
Preoperative and Intraoperative Diffusion Tensor Imaging-based Fiber Tracking in Glioma Surgery (2005)

Comparing preoperative and intraoperative fiber tracking visualizes a marked shifting and deformation of major white matter tracts because of tumor removal. This shifting emphasizes the need for an intraoperative update of navigation systems during resection of deep-seated tumor portions near eloquent brain areas. Fiber tracking is a method not only for preoperative neurosurgical visualization but also for further intraoperative planning.
Characterization of mouse liver α-<scp>l</scp>-fucosidase. Demonstration of unusual basic isoelectric forms of the enzyme that appear to be developmentally regulated (1985)

Mouse tissues contain unusual basic isoelectric forms of alpha-L-fucosidase (with approximate isoelectric points of 8.3 and 9.0) in addition to the usual acidic and neutral forms previously described in tissues of other species. These unusual forms are very prominent in placenta and foetal tissues and comprise approx, 50-80% of total activity up to 11 days of postnatal development. By 15 days of postnatal development, the basic forms are diminished in amount and comprise not more than 25% of total activity. Neuraminidase treatment of adult mouse liver alpha-L-fucosidase led to significantly decreased amounts of acidic forms and increased amounts of the basic forms, suggesting that these forms are chemically related at least in part by sialic acid residues. Comparative kinetic studies on mouse liver, human liver and mouse placental alpha-L-fucosidases indicated that they have the same Km (0.05-0.06 mM) for 4-methylumbelliferyl alpha-L-fucopyranoside but different pH optima and thermostability properties. Mouse liver alpha-L-fucosidase has one pH optimum (5.5) and an acidic shoulder (centred around pH 4.0) compared with two distinct optima (4.3 and 6.8) for the human liver enzyme. Mouse placental alpha-L-fucosidase has a pH-activity curve comparable with that of the mouse liver enzyme except that the acidic shoulder is absent. Mouse liver alpha-L-fucosidase is considerably more thermolabile after preincubation at 50 degrees C than are the human liver and mouse placental enzymes, which gave similar thermodenaturation curves. Immunochemical studies indicated that mouse and human alpha-L-fucosidases are dissimilar antigenically but exhibit some cross-reactivity. The IgG fraction of antibody prepared in goat against human liver alpha-L-fucosidase was ineffective by itself in immunoprecipitating mouse liver alpha-L-fucosidase, but 63% and 72% of the mouse liver and placental enzymes respectively could be immunoprecipitated in the double-antibody experiments under conditions that immunoprecipitated 92% of the human liver enzyme.
Bis(2,9-diphenyl-1,10-phenanthroline)copper(I): a copper complex with a long-lived charge-transfer excited state (1983)

The title compound, [Cu(dpp)2]+(dpp = 2,9-diphenyl-1,10-phenanthroline), exhibits long-lived emission at room temperature in solution, and in contrast with copper(I) complexes of less bulky ligands, the emission persists in polar media; a water soluble derivative of [Cu(dpp)2]+ is luminescent at room temperature in aqueous solution and undergoes efficient redox photochemistry in the presence of electron acceptors.
Esophageal pH Monitoring and Impedance Measurement: A Comparison of Two Diagnostic Tests for Gastroesophageal Reflux (2002)

Most reflux episodes that occur in infants are undetectable by standard pH probe monitoring. pH monitoring does not detect all reflux in the esophagus but is useful for detecting acidity in the esophagus and determining the duration of its presence. Combining pH monitoring with impedance measurement is a valuable diagnostic tool for gastroesophageal reflux in infants.
Expression of the sodium ion pump methylmalonyl-coenzyme A-decarboxylase from Veillonella parvula and of mutated enzyme specimens in Escherichia coli (1995)

The structural genes of the sodium ion pump methylmalonyl-coenzyme A (CoA)-decarboxylase from Veillonella parvula have recently been cloned on three overlapping plasmids (pJH1, pJH20, and pJH40) and sequenced. To synthesize the complete decarboxylase in Escherichia coli, the genes were fused in the correct order (mmdADECB) on a single plasmid (pJH70). A DNA region upstream of mmdA apparently served as promoter in E. coli because expression of the mmd genes was not dependent on the correct orientation of the lac promoter present on the pBluescript KS(+)-derived expression plasmid. To allow controlled induction of the mmd genes, the upstream region was deleted and the mmd genes were cloned behind a T7 promoter. The derived plasmid, pT7mmd, was transformed into E. coli BL21(DE3) expressing T7 RNA polymerase under the control of the lac promoter. The synthesized proteins showed the typical properties of methylmalonyl-CoA-decarboxylase, i.e., the same migration behavior during sodium dodecyl sulfate-polyacrylamide gel electrophoresis, stimulation of the decarboxylation activity by sodium ions, and inhibition with avidin. In methylmalonyl-CoA-decarboxylase expressed in E. coli from pT7mmd, the gamma subunit was only partially biotinylated and the alpha subunit was present in substoichiometric amounts, resulting in a low catalytic activity. This activity could be considerably increased by coexpression of biotin ligase and by incubation with separately expressed alpha subunit. After these treatments methylmalonyl-CoA-decarboxylase with a specific activity of about 5 U/mg of protein was isolated by adsorption and elution from monomeric avidin-Sepharose. To analyze the function of the delta and epsilon subunits, the corresponding genes were deleted from plasmid pT7mmd. E. coli cells transformed with pJHdelta2, which lacks mmdE and the 3' -terminal part of mmdD, showed no methylmalonyl-CoA-decarboxylase activity. In addition, a contrast, catalytically active methylmalonyl-CoA-decarboxylase was expressed in E. coli from plasmid pJHdelta1, which contained a deletion of the mmdE gene only. The mutant enzyme could be isolated, reconstituted into proteolipsomes, and shown to function in the transport of Na+ ions coupled to methylmalonyl-CoA decarboxylation. The small epsilon subunit therefore has no catalytic function within the methylmalonyl-CoA-decarboxylase complex but appears to increase the stability of this complex.
Chain dynamics, mesh size, and diffusive transport in networks of polymerized actin: a quasielastic light scattering and microfluorescence study (1989)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChain dynamics, mesh size, and diffusive transport in networks of polymerized actin: a quasielastic light scattering and microfluorescence studyChristoph F. Schmidt, Michael Baermann, Gerhard Isenberg, and Erich SackmannCite this: Macromolecules 1989, 22, 9, 3638–3649Publication Date (Print):September 1, 1989Publication History Published online1 May 2002Published inissue 1 September 1989https://pubs.acs.org/doi/10.1021/ma00199a023https://doi.org/10.1021/ma00199a023research-articleACS PublicationsRequest reuse permissionsArticle Views1374Altmetric-Citations169LEARN 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
Condensations of 1,4-Cyclohexanediones and Secondary Aromatic Amines. II. <i>N</i>-Phenylation of Diarylamines (1986)

Abstract The condensations of 1,4-cyclohexanedione with several diphenylamines were investigated in order to determine the limit of the utility of this reaction for the N-phenylation of aromatic secondary amines. 4-Methoxy-, 4,4′-dimethyl-, and 4,4′-dibromodiphenylamines produced their N-phenylated compounds in fairly good yields, but 4-hydroxy-, 3-methoxy-, and 4,4′-bis(dimethylamino)diphenylamines produced poor yields. Nitro-substituted diphenylamines gave N-phenyl derivatives in low yields along with N-4-hydroxyphenyl derivatives. N,N′-Diphenyl-p-phenylenediamine and N,N′-diphenylbenzidine gave corresponding tetra-N-phenyl diamines in good yields. The condensation of N-phenyl-1-naphthylamine, N-phenyl-2-naphthylamine, di-2-pyridylamine, phenothiazine, and carbazole with 1,4-cyclohexanedione were also examined.
Digital Darkfield Tableaus (2006)

Extended abstract of a paper presented at Microscopy and Microanalysis 2006 in Chicago, Illinois, USA, July 30 – August 3, 2005
Cognitive Style Of International And Domestic Graduate Students In Agricultural Education And Agricultural Economics (1990)

Cognitive style is a dimension of learning style and can be defined as the distinctive and preferred way a learner organizes and retains information (Keefe, 1979). The two dimensions of cognitive style presented in this research originated from there search of Dr. H. A. Witkin. His research divided cognitive style into the dimensions of field dependent and field independent. When individuals are presented with a task designed to assess their cognitive style, field dependent individuals perceive a seen field as a whole; it would be difficult for such a person to separate a pattern from the surrounding environment (Escolme, 1988). They have a global perception of their environment. Field independent individuals tend “to experience parts of the field as discrete from the surrounding field even when the field (was) so organized as to strongly embed the part” (Witkin, 1974). They perceive their environment analytically.
Insulin Receptor Signals Regulating GLUT4 Translocation and Actin Dynamics (2006)

In skeletal muscle and adipose tissue, insulin-stimulated glucose uptake is dependent upon translocation of the insulin-responsive glucose transporter GLUT4 from intracellular storage compartments to the plasma membrane. This insulin-induced redistribution of GLUT4 protein is achieved through a series of highly organized membrane trafficking events, orchestrated by insulin receptor signals. Recently, several key molecules linking insulin receptor signals and membrane trafficking have been identified, and emerging evidence supports the importance of subcellular compartmentalization of signaling components at the right time and in the right place. In addition, the translocation of GLUT4 in adipocytes requires insulin stimulation of dynamic actin remodeling at the inner surface of the plasma membrane (cortical actin) and in the perinuclear region. This results from at least two independent insulin receptor signals, one leading to the activation of phosphatidylinositol (PI) 3-kinase and the other to the activation of the Rho family small GTP-binding protein TC10. Thus, both spatial and temporal regulations of actin dynamics, both beneath the plasma membrane and around endomembranes, by insulin receptor signals are also involved in the process of GLUT4 translocation.
Dynamic Model of Excavator (1993)

Automation of excavation work calls for a robotic system able to perform the planned digging work that is responsive to interaction forces experienced during excavation. The development of automated excavation control methods requires a dynamic model to describe the evolution of the excavator motion with time. The joint torques of the boom mechanism are generated by hydraulic rams that also affect the torques at other joints. Analyzing each link in succession as a free body and applying the Newton‐Euler formulation in the local coordinate frame, a dynamic model for an excavator can be derived in a straightforward manner. The model presented in this paper is intended for further development of an automated excavation control system for terrestrial, lunar, and planetary excavation.