gebhart/patrepeval huggingface dataset:
A STUDY OF CEMENT MODIFIED BITUMEN EMULSION MIXTURES (2000)

Earlier studies have demonstrated the beneficial effects of adding Ordinary Portland Cement (OPC) to bitumen emulsion mixtures. These effects were confirmed for some dense graded mixtures based on recipes currently used for hot mix in the UK and being considered for use in cold mix. Laboratory tests included stiffness modulus, resistance to permanent deformation and resistance to fatigue cracking. In order to obtain a clearer understanding of the mechanisms causing the improvements in properties, some basic studies were carried out. These included measurement of the rate at which coalescence of bitumen droplets developed and adhered to the aggregate particles, since this is the initial mechanism by which mechanical properties of the mixture are developed. The study was then extended to obtain an understanding of the properties of emulsion blended with OPC, hydrated lime or limestone filler. This was done since it was thought that a contribution to 'binding' of the aggregate in mixtures came from the hydration of cement as well as from the coalesced bitumen. Dynamic Shear Rheometer tests were used on various blends demonstrating the stiffening effects of both OPC and hydrated lime and that filler had little influence. The emulsifying process was also shown to have no effect on the characteristics of the base bitumen. Electron microscopy was used to study the crystalline structures of fully cured mixtures with and without OPC addition. Expert interpretation considered that some of the characteristics of cement hydration effects were present in those mixtures incorporating OPC. The study concluded that the improvements to key properties of cold mix by the addition of OPC can be explained by a range of mechanisms, including improved rate of emulsion coalescence after compaction, cement hydration and enhancement of binder viscosity.
SILICATE DEFICIENCY AND LIPID SYNTHESIS OF MARINE DIATOMS<sup>1,2</sup> (1987)

ABSTRACT Lipid synthesis of three marine diatoms was studied with a 14 CO 2 incorporation technique in silicate limited batch cultures. Growth rates were independent of the silicate concentration but the cellular yields were proportional to the initial amount of silicate. At the beginning of the stationary growth phase, lipid synthesis rates per unit culture volume increased by 1.7 times for Chaetoceros gracilis, 3.1 times for Hantzschia sp., and 2.8 times for Cyclotella sp., respectively compared to those during the exponential growth phase. Lipid carbon accounted for as much as 57% of the carbon in C. gracilis, 71% in Hantzschia sp., and 65% in Cyclotella sp., respectively. Additional enrichment with silicate during stationary growth phase allowed the cultures to grow further. Lipid synthesis rates were reduced during the subsequent growth phase, and the growth rates themselves were dependent on the level of biomass achieved during the previous stationary phase. However, the cellular yields were similar and probably controlled by light.
Hydrodynamic Force and Heat/Mass Transfer From Particles, Bubbles, and Drops—The Freeman Scholar Lecture (2003)

Recent advances on the analytical form of the hydrodynamic force and heat/mass transfer from a particle, bubble, or drop are examined critically. Also some of the recent computational studies, which help strengthen or clarify our knowledge of the complex velocity and temperature fields associated with the momentum and heat/mass transfer processes are also mentioned in a succinct way. Whenever possible, the processes of energy/mass exchange and of momentum exchange from spheres and spheroids are examined simultaneously and any common results and possible analogies between these processes are pointed out. This approach results in a better comprehension of the transport processes, which are very similar in nature, as well as in the better understanding of the theoretical expressions that are currently used to model these processes. Of the various terms that appear in the transient equations, emphasis is given to the history terms, which are lesser known and more difficult to calculate. The origin, form, and method of computation of the history terms are pointed out as well as the effects of various parameters on them. Among the other topics examined here are the differences in the governing and derived equations resulting by finite Reynolds and Peclet numbers; the origin, theoretical validity and accuracy of the semi-empirical expressions; the effects of finite internal viscosity and conductivity of the sphere; the effects of small departures from the spherical shape; the effects of the finite concentration; and the transverse, or lift, components of the force on the sphere.
Inverse lithography technology at chip scale (2006)

In this paper we describe, from the user's point of view, how Inverse Lithography Technology (ILT) differs from Optical Proximity Correction (OPC). We discuss some specifics of ILT at chip-scale. We show simulation and experimental results from 90nm and 65nm semiconductor nodes, comparing results from ILT-generated masks and OPC-generated masks for real-life layouts, in a production environment. In addition, we discuss issues related to complexity and manufacturability of ILT-generated masks.
Characterizing a large outbreak of dengue fever in Guangdong Province, China (2016)

Dengue fever is a serious public health problem and is emerging as a continuous threat in Guangdong Province. There is an urgent need to enhance dengue surveillance and control, especially for the high-risk populations in high-risk areas.
Database-augmented spectrum sensing algorithm for cognitive radio (2015)

Spectrum sensing is one of the key technologies to realize dynamic spectrum access in cognitive radio (CR). In this paper, a novel database-augmented spectrum sensing algorithm is proposed for a secondary access to the TV White Space (TVWS) spectrum. The proposed database-augmented sensing algorithm is based on an existing geo-location database approach for detecting incumbents like Digital Terrestrial Television (DTT) and Programme Making and Special Events (PMSE) users, but is combined with spectrum sensing to further improve the protection to these primary users (PUs). A closed-form expression of secondary users' (SUs) spectral efficiency is also derived for its opportunistic access of TVWS. By implementing previously developed power control based geo-location database and adaptive spectrum sensing algorithm, the proposed database-augmented sensing algorithm demonstrates a better spectrum efficiency for SUs, and better protection for incumbent PUs than the exiting stand-alone geo-location database model. Furthermore, we analyze the effect of the unregistered PMSE on the reliable use of the channel for SUs.
Properties and reactions of metal terephthalates (1989)

Abstract Divalent metal terephthalates such as the zinc, calcium, barium, and cadmium salts appear, from their properties, to be polymeric. As a result, exceptionally high decomposition temperatures and unusually low solubilities are found. Although not in themselves vinyl heat stabilizers, in concert with typical mixed metal stabilizers, divalent metal terephthalates function as boosters and secondary stabilizers. In such capacity, they are characterized by little or no contribution to lubrication, odor, volatility, or moisture absorption.
Production of Plasma Membrane Vesicles with Chloride Salts and Their Utility as a Cell Membrane Mimetic for Biophysical Characterization of Membrane Protein Interactions (2012)

Plasma membrane derived vesicles are used as a model system for the biochemical and biophysical investigations of membrane proteins and membrane organization. The most widely used vesiculation procedure relies on formaldehyde and dithiothreitol (DTT), but these active chemicals may introduce artifacts in the experimental results. Here we describe a procedure to vesiculate Chinese hamster ovary (CHO) cells, widely used for the expression of recombinant proteins, using a hypertonic vesiculation buffer containing chloride salts and no formaldehyde or DTT. We characterize the size distribution of the produced vesicles. We also show that these vesicles can be used for the biophysical characterization of interactions between membrane proteins.
Integrated Affinity Biosensing Platforms on Screen-Printed Electrodes Electrografted with Diazonium Salts (2018)

Adequate selection of the electrode surface and the strategies for its modification to enable subsequent immobilization of biomolecules and/or nanomaterials integration play a major role in the performance of electrochemical affinity biosensors. Because of the simplicity, rapidity and versatility, electrografting using diazonium salt reduction is among the most currently used functionalization methods to provide the attachment of an organic layer to a conductive substrate. This particular chemistry has demonstrated to be a powerful tool to covalently immobilize in a stable and reproducible way a wide range of biomolecules or nanomaterials onto different electrode surfaces. Considering the great progress and interesting features arisen in the last years, this paper outlines the potential of diazonium chemistry to prepare single or multianalyte electrochemical affinity biosensors on screen-printed electrodes (SPEs) and points out the existing challenges and future directions in this field.
Coverage Metrics for Device Level Validation of SATA and SAS Devices -- An Approach (2014)

This paper highlights the significance of Coverage analysis with respect to the functionality and adherence to the standard specification of SATA, SAS, NVME & eMMC Devices (SSD's, HDD's). Coverage analysis aims at achieving an effective way of testing the intrinsic functionality of the storage devices. Commands are issued to the Device under test to validate the attributes such as methods of transfer, latest technology involved to structure the storage device functionality, performance and the adherence to the protocol (SATA protocol). Validation environment of the storage device will include innumerable test cases which lead to redundancy of test scenarios and may cause gaps in the whole validation procedure rendering the goal to achieve a thorough validation output.
In Situ Analysis of Molecular Structure of Mercaptobenzothiazole Adsorbed on Silver and Copper Electrode Surfaces. (1992)

The Adsorbed structure of mercaptobenzothiazole (MBT) at silver and copper electrode surfaces was investigated in situ by surface-enhanced Raman scattering (SERS ). The molecule has a thione-type structure in acidic solutions of pH< 3 and an ionized-thiol-type structure in basic solutions of pH> 9. Both types of MBT strongly adsorb on the electrodes through the sulfur atom.
Introducing Speech and Language Processing (2005)

1. Introduction 2. Sounds and numbers 3. Digital filters and resonators 4. Frequency analysis and linear predictive coding 5. Finite state machines 6. Introduction to speech recognition techniques 7. Probabilistic finite-state models 8. Parsing 9. Using probabilistic grammars.
Percolation Theory of Two-Phase Relative Permeability (1992)

Summary This paper uses statistical concepts, some borrowed from the percolation theory of disordered media, to develop a theory of two-phase relative permeabilities in regimes in which one phase is strongly wetting. Inputs to the theory are a network model of pore space, the distributions of pore-throat radii, and functions that relate pore-throat conductance and volume to its radius. The theory with a network model of pore space and several simple statistical distributions of pore dimensions, is found to predict all observed trends in two-phase relative permeabilities of systems in which one phase is strongly wetting. Moreover, the inputs to the theory can be adjusted to fit experimental data closely.
Preoperative <sup>123</sup>I/<sup>99m</sup>Tc-Sestamibi Subtraction SPECT and SPECT/CT in Primary Hyperparathyroidism (2008)

SPECT/CT is significantly more specific than dual-isotope subtraction SPECT for the preoperative identification of parathyroid lesions in patients with primary hyperparathyroidism.
Fecal microbiota transplant for <i>Clostridium difficile</i> infection in older adults (2015)

FMT is a generally safe and effective treatment option for older adults with CDI.
RESERVOIR PARAMETER ESTIMATION USING WELL LOGGING DATA AND PRODUCTION HISTORY OF THE KALDÁRHOLT GEOTHERMAL FIELD, S-ICELAND (2005)

The Kaldarholt field is an important low-temperature geothermal fields located in S-Iceland. This field has been exploited from 2000, used mainly for heating purposes. Available well logging data (temperature profiles, dual neutron logs, natural gamma ray and caliper logs) as well as acoustic televiewer and production history data, were analyzed in an attempt to estimate reservoir parameters and identify possible fracture systems in the study area in relation to the different rock units and feed zones. The interpretation of temperature data shows that there is an oriented upflow of water with a temperature of 67°C. Different petrophysical parameters were estimated like porosity, silica content and permeability. An inversion modelling technique was applied to derive the compressional velocity and density of the formation. Identification and typing of different rock units was also achieved through interpretation of synthetic seismograms and reflection coefficient as correlated with the geometrical pattern logs. The mechanical properties of the rocks were estimated and interpreted in relation to the different fractures and feed zones, as well as in matching with the main rock types. Televiewer amplitude and travel time data and breakout parameters were interpreted. Different fracture systems prevailing in the area were identified; their azimuth and dip directions were interpreted. A NNE-SSW dipping direction was assigned to these fractures, which exhibit high near-vertical dipping angles, more than 70°. The host rock of the Kaldarholt system is dominated by
<i>TDP</i>‐<i>43</i> mutation in familial amyotrophic lateral sclerosis (2008)

Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder. Accumulating evidence has shown that 43kDa TAR-DNA-binding protein (TDP-43) is the disease protein in ALS and frontotemporal lobar degeneration. We previously reported a familial ALS with Bumina bodies and TDP-43-positive skein-like inclusions in the lower motor neurons; these findings are indistinguishable from those of sporadic ALS. In three affected individuals in two generations of one family, we found a single base-pair change from A to G at position 1028 in TDP-43, which resulted in a Gln-to-Arg substitution at position 343. Our findings provide a new insight into the molecular pathogenesis of ALS.
Anticandidal properties of N3-(4-methoxyfumaroyl)-L-2,3-diaminopropanoic acid oligopeptides (1990)

Tri-, tetra-, and pentapeptides containing N3-(4-methoxyfumaroyl)-L-2,3-diaminopropanoic acid (FMDP), an inactivator of glucosamine 6-phosphate synthase of fungal origin (a key enzyme in the biosynthesis of macromolecular components of the fungal cell wall) have been synthesized and investigated as anticandidal agents. Structure-activity relationships of a series of peptides revealed that tripeptides were generally more active than the other peptides examined. In this study, the lysyl peptide, Lys-Nva-FMDP has been found to be the most active compound in the series.
Peer Clique Participation and Social Status in Preadolescence (2000)

A method is described to identify peer cliques based on a consensus of group members; it provides quantitative measures of preadolescents’ involvement in cliques and their association with peers who often get in trouble. Of primary interest was the relation between peer rejection and participation in peer cliques. Characteristics of peer cliques were assessed for 824 fourth-grade youth as a function of their sociometric status, gender, and aggressiveness. Rejected youth were less central members of their group than were average-status peers; however, aggressive preadolescents were no less centrally involved than their nonaggressive peers. Rejected preadolescents also belonged to smaller cliques and to cliques comprised of other low-status peers. Aggression was the primary factor associated with being a central member of deviant peer cliques.
Genetic Diversity and Molecular Evolution of Chinese Waxy Maize Germplasm (2013)

Waxy maize (Zea mays L. var. certaina Kulesh), with many excellent characters in terms of starch composition and economic value, has grown in China for a long history and its production has increased dramatically in recent decades. However, the evolution and origin of waxy maize still remains unclear. We studied the genetic diversity of Chinese waxy maize including typical landraces and inbred lines by SSR analysis and the results showed a wide genetic diversity in the Chinese waxy maize germplasm. We analyzed the origin and evolution of waxy maize by sequencing 108 samples, and downloading 52 sequences from GenBank for the waxy locus in a number of accessions from genus Zea. A sharp reduction of nucleotide diversity and significant neutrality tests (Tajima's D and Fu and Li's F*) were observed at the waxy locus in Chinese waxy maize but not in nonglutinous maize. Phylogenetic analysis indicated that Chinese waxy maize originated from the cultivated flint maize and most of the modern waxy maize inbred lines showed a distinct independent origin and evolution process compared with the germplasm from Southwest China. The results indicated that an agronomic trait can be quickly improved to meet production demand by selection.
Y-Net: a one-to-two deep learning framework for digital holographic reconstruction (2019)

In this Letter, for the first time, to the best of our knowledge, we propose a digital holographic reconstruction method with a one-to-two deep learning framework (Y-Net). Perfectly fitting the holographic reconstruction process, the Y-Net can simultaneously reconstruct intensity and phase information from a single digital hologram. As a result, this compact network with reduced parameters brings higher performance than typical network variants. The experimental results of the mouse phagocytes demonstrate the advantages of the proposed Y-Net.
High-Resolution Separation of DNA Restriction Fragments Using Capillary Electrophoresis with Near-IR, Diode-Based, Laser-Induced Fluorescence Detection (1997)

The near-IR dye thiazole green (TAG) was used as a monomeric nuclear staining dye for the low-level detection of DNA restriction fragments separated via high-performance capillary electrophoresis with near-IR laser-induced fluorescence detection. TAG possessed an absorption maximum at 735 nm and an emission maximum at approximately 765 nm and, in the presence of dsDNAs, showed a fluorescence enhancement ratio of approximately 102, with a binding constant to dsDNAs determined to be 6.1 × 106 M-1. The high-resolution separation of the HaeIII restriction digest of ΦX174 was carried out using capillary electrophoresis on the native, ethidium bromide-stained, and TAG-stained DNA fragments. The TAG-stained DNA fragments resulted in higher plate numbers compared to the native and EtBr-stained restriction fragments as well as enhanced resolution; however, the 271/281 fragments could not be resolved using these CE conditions. To investigate the detection sensitivity of the TAG-stained DNA in capillary electrophoresis, an all-solid-state diode-based, laser-induced fluorescence detector was constructed, which consisted of a GaAlAs diode laser, with a principal lasing line at 750 nm and an avalanche photodiode. Using a running buffer composed of an entangled polymer (HPMC) and 1 μM TAG with no prestaining of the dsDNA prior to the electrophoresis, the limit of detection was found to be 20 fg (SNR = 3) of DNA per electrophoretic band. In addition, using the LIF system, the 271/281 bp fragments were nearly baseline resolved, with plate numbers exceeding 1 × 106 plates/m.
Multiple-prism Littrow and grazing-incidence pulsed CO_2 lasers (1985)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text F. J. Duarte, "Multiple-prism Littrow and grazing-incidence pulsed CO2 lasers," Appl. Opt. 24, 1244-1245 (1985) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
SuperQuant-assisted comparative proteome analysis of glioblastoma subpopulations allows for identification of potential novel therapeutic targets and cell markers (2018)

Glioblastoma (GBM) is a highly aggressive brain cancer with poor prognosis and low survival rate. Invasive cancer stem-like cells (CSCs) are responsible for tumor recurrence because they escape current treatments. Our main goal was to study the proteome of three GBM subpopulations to identify key molecules behind GBM cell phenotypes and potential cell markers for migrating cells. We used SuperQuant-an enhanced quantitative proteome approach-to increase proteome coverage. We found 148 proteins differentially regulated in migrating CSCs and 199 proteins differentially regulated in differentiated cells. We used Ingenuity Pathway Analysis (IPA) to predict upstream regulators, downstream effects and canonical pathways associated with regulated proteins. IPA analysis predicted activation of integrin-linked kinase (ILK) signaling, actin cytoskeleton signaling, and lysine demethylase 5B (KDM5B) in CSC migration. Moreover, our data suggested that microRNA-122 (miR-122) is a potential upstream regulator of GBM phenotypes as miR-122 activation was predicted for differentiated cells while its inhibition was predicted for migrating CSCs. Finally, we validated transferrin (TF) and procollagen-lysine 2-oxoglutarate 5-dioxygenase 2 (PLOD2) as potential markers for migrating cells.
Morphological and Cytofluorimetric Analysis of Adult Mesenchymal Stem Cells Expanded <i>Ex Vivo</i> from Periodontal Ligament (2005)

Many adult tissues contain a population of stem cells that have the ability of regeneration after trauma, disease or aging. Recently, there has been great interest in mesenchymal stem cells and their roles in maintaining the physiological structure of tissues, and their studies have been considered very important and intriguing, after having shown that this cell population can be expanded ex vivo to regenerate tissues not only of the mesenchymal lineage, such as intervertebral disc cartilage, bone, tooth-associated tissue, cardiomyocytes, but also to differentiate into cells derived from other embryonic layers, including neurons. Currently, different efforts have been focused on the identification of odontogenic progenitors from oral tissues. In this study we isolated and characterized a population of homogeneous human mesenchymal stem cells proliferating in culture with an attached well-spread morphology derived from periodontal ligament, a tissue of ectomesenchymal origin, with the ability to form a specialized joint between alveolar bone and tooth. The adherent cells were harvested and expanded ex vivo under specific conditions and analysed by FACScan flow cytometer and morphological analysis was carried out by light, scanning and transmission electron microscopy. Our results displayed highly evident cells with a fibroblast-like morphology and a secretory apparatus, probably indicating that the enhanced function of the secretory apparatus of the mesenchymal stem cells may be associated with the secretion of molecules that are required to survive and proliferate. Moreover, the presence in periodontal ligament of CD90, CD29, CD44,CD166, CD 105, CD13 positive cells, antigens that are also identified as stromal precursors of the bone marrow, indicate that the periodontal ligament may turn out to be a new efficient source of the cells with intrinsic capacity to self-renewal, high ability to proliferate and differentiate, that can be utilized for a new approach to regenerative medicine and tissue engineering.