gebhart/patrepeval huggingface dataset:
The effect of processing routes on the thermal and mechanical properties of poly(urethane‐isocyanurate) nanocomposites (2015)

ABSTRACT A systematic investigation of four processing routes was implemented so as to evaluate the thermal and mechanical properties of nanosilica (NS) reinforced poly(urethane‐isocyanurate) nanocomposites (NC). The NS dispersion in the Polmix and the Isomix routes was performed in the polyol and the isocyanate precursor, respectively. The Isopol and the Solvmix routes consisted on the dispersion of the filler after the mixing of the precursors and with the aid of solvents, respectively. The NS dispersion, fractography (SEM, TEM), flexural and tensile mechanical properties, thermogravimetric analysis and FTIR analysis of NCs was performed as a function of processing route, isocyanate index, and NS concentration. Each route produced a NC with distinct properties, which were correlated to the NS agglomeration degree and how the NS affected the thermal transitions of the HS and the relative ratio of urethane and isocyanurate chemical groups. For example, the NC prepared with the Polmix route had substantial improvements of σ t and ε t of around +40 and +52%, respectively and an improved thermal resistance of the Hard Segments. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42750.
A possible mechanism how eicosapentaenoic acid increases red cell filterability. (1985)

Eicosapentaenoic acid (EPA) is known by its anti-atherogenic and anti-thrombotic properties. This protective character of the fatty acid is usually explained through the shift of prostanoid production toward anti-thrombotic direction including depression of platelet aggregability. Since 1981 we have been reporting the effect of EPA on hemorheology. Because there is a possibility that viscosity of fatty acids themselves may be reflected in membrane fluidity, hence RBC filterability, we measured viscosities of triglycerides and ethylesters of EPA, and other fatty acids. It was found that triglycerides and ethylester of EPA are the less viscous oils than triglycerides and ethylesters containing other fatty acids measured in the experiment, respectively. It is important to prove directly that an increase in EPA content in RBC membrane could increase membrane fluidity.
Crisis y cibermundo: Mutaciones históricas entre cibercapitalismo y postcapitalismo (2015)

This paper tackles the connection between the social transformations in the cyberworld and the technologies at their service as an attempt to understand the power relations present in the current economic crisis and the emerging third-sector, commons-based social production taking the internet as a privileged batllefield. Building on this, four main topics are explored and discussed: how the spaces of cohabitation and the resources that sustain the social production are built; how the inhabitants of the cyberterritory relate with it so as to gain prominence in its construction; what are the potentialities and vulnerabilities of the cyberworld with a view to social emancipation or control; and the contradictions appearing in the new economic and social forms with respect to the principles of capitalist societies. To conclude, we point to the risks of enclosure and massive appropriation of the social creativity, as well as the prospects of communal benefit of the social wealth present in the most successful experiences of hybrid economy.
Ionospheric Electric Field Measurements with a Spin Stabilized Detector (1973)

A spin stabilized probe was constructed to make three component vector measurements of dc electric fields in the auroral ionosphere. The resolution of an electric field component was found to be as high as ≃ 0.5 mV/m in magnitude and ≃ 20 msec in time, while the total vector was resolved in ≃ 0.5 sec. This miniaturized instrument was mounted on the exterior skin of sounding rockets and, containing its own telemetry and magnetometer system, was ejected into the ionosphere. The floating double Langmuir probe detector was designed to have a high input impedance of ≃ 8 × 103 Ω at 60 Hz. Spin rates from 10 to 100 Hz allowed the dc offset errors, normally measured by other techniques, to be removed by ac coupling of the electronics. A simplified data reduction procedure is obtained by an envelope analysis of the amplitude modulated electric and magnetic field signals.
NEX: Virtual Machine Monitor Level Single System Support in Xen (2009)

Numerous approaches have been investigated to achieve single system image in order to simplify the complexity of programming and administration of cluster. This paper focuses on virtualization approach and presents NEX, a system of cooperative hypervisors with single system image support. NEX could provide a virtual SMP machine over cluster nodes. Commodity operating systems that support SMP could run across nodes through NEX in parallel. The approach is based on prior research on virtualization and distributed shared memory. This paper describes the design and implementation of NEX and gives a preliminary evaluation.
Increased Risk of Thrombocytopenia and Death in Patients with Bacteremia Caused by High Alpha Toxin-Producing Methicillin-Resistant Staphylococcus aureus (2021)

Alpha toxin (Hla) is a major virulence factor of <i>Staphylococcus aureus</i> that targets platelets but clinical data on Hla pathogenesis in bacteremia (SAB) is limited. We examined the link between in vitro Hla activity and outcome. Study isolates obtained from 100 patients with SAB (50 survivors; 50 non-survivors) were assessed for in vitro Hla production by Western immunoblotting in a subset of isolates and Hla activity by hemolysis assay in all isolates. Relevant demographics, laboratory and clinical data were extracted from patients' medical records to correlate Hla activity of the infecting isolates with outcome. Hla production strongly correlated with hemolytic activity (<i>r<sub>s</sub></i> = 0.93) in vitro. A trend towards higher hemolytic activity was observed for MRSA compared to MSSA and with high-risk source infection. Significantly higher hemolytic activity was noted for MRSA strains isolated from patients who developed thrombocytopenia (median 52.48 vs. 16.55 HU/mL in normal platelet count, <i>p</i> = 0.012) and from non survivors (median 30.96 vs. 14.87 HU/mL in survivors, <i>p</i> = 0.014) but hemolytic activity of MSSA strains did not differ between patient groups. In vitro Hla activity of <i>MRSA</i> strains obtained from patients with bacteremia is significantly associated with increased risk for thrombocytopenia and death which supports future studies to evaluate feasibility of bedside phenotyping and therapeutic targeting.
Probing composition and interfacial interaction in oxide passivated core-shell iron nanoparticles by combining x-ray absorption and magnetic circular dichroism (2004)

We present x-ray absorption and x-ray magnetic circular dichroism studies of iron oxide passivated iron nanoparticles. The combination of measurements with different probing depths allows us to determine the oxide composition while the magnetic data reveal the magnetic interactions across the interface between the α-Fe core and the spin canted ferrimagnetic iron oxide shell. These studies shed light on the mechanisms that govern the magnetic properties of core-shell nanoparticles.
A homogeneous fluorescent immunoassay for human immunoglobulin M. (1981)

We describe a homogeneous substrate-labeled fluorescent immunoassay for human IgM. In this competitive-binding method we use a fluorogenic substrate for Escherichia coli beta-galactosidase, N-(6-aminohexyl)-7-beta-galactosyl-coumarin-3-carboxamide, which is covalently coupled to IgM. The fluorescence emission intensity of the labeled IgM at 450 nm (with excitation at 400 nm) is negligible, but when beta-galactosidase is added, the acetal linkage of the galactosyl moiety is hydrolyzed and the product has a greatly enhanced fluorescence. Formation of this fluorescent product is inhibited when antibody specific for IgM is bound to the labeled protein. In competitive-binding reactions, IgM from the serum competes with the labeled IgM for antibody binding sites and consequently the fluorescence produced by the enzymic reaction is related to the IgM concentration. The working range of the assay is between 0.5 and 5.0 g of IgM per liter when a 50-fold predilution of the sera is used. The assay does not cross react significantly with immunoglobulins G or A.
Ionic Conduction in β-Ag2Te and β-Ag2Se (1959)

The ionic conductivity, σ i , of β-Ag 2 Te and β-Ag 2 Se is estimated from the time constant of the ionic polarization with the help of the galvanic cell Ag|AgI|specimen|Pt, showing that σ i depends on the composition (deviation from the stoichiometric ratio) in contrast with the composition-independent σ i in their α phase. The chemical potential of Ag ion, ζ i , known from the e.m.f., E , of the cell is also dependent on the composition in the β phase, and accordingly E does not represent the relative position of the Fermi level as in the α phase. This composition dependence of ζ i and σ i is accounted for by a simple theory. In addition, the electronic properties measured as functions of E are also compared with the theory with a correction to E by ζ i .
Oxygen delivery and uptake in dogs during anemic and hypoxic hypoxia (1977)

Three groups of dogs were anesthetized, paralyzed, and ventilated at constant rates with the spleen clamped. Two groups were isovolemically hemodiluted with warm dextran and plasma to hematocrits just above and below that at which O2 uptake (VO2) could not be maintained at preanemic levels. One of these groups was given propranolol to reduce the cardiac output response to anemia. The third group was ventilated on a low O2 gas mixture to decrease oxygen uptake. VO2 was thus limited at a high-delivery O2 pressure (PO2) in anemia and a low-delivery PO2 in hypoxic hypoxia. VO2 was reduced at a mixed venous PO2 of 45 Torr in anemia and at 17 Torr in hypoxic hypoxia. VO2, mixed venous PO2, and O2 delivery decreased precipitously at hematocrits below 10%. Once VO2 was limited by O2 availability, a single linear relationship (r = 0.91) was found for percent VO2 as a function of total O2 delivery (cardiac output X arterial O2 content) during both anemic and hypoxic hypoxia. The critical value for O2 delivery was 9.8 ml/kg-min. When O2 supply became limiting, VO2 apparently was not diffusion limited because it was more dependent on volume delivery rates than on delivery PO2.
Topological proof of the Nielsen - Willson theorem (1986)

This paper proves that the recent result in [1] when specialized to transistor circuits is equivalent to the Nielsen-Willson theorem. The proof is graph-theoretic in nature.
Trustful Cumulus Clouds (2010)

Cloud computing offers an appealing business model and it is tempting for companies to delegate their IT services to the cloud. Yet, a company might ï¬nd it risky to do so for sensible services and to depend entirely on a single provider, which can be vulnerable and constitute a clearly identiï¬ed target for attackers. We explore in this paper a replication approach where copies of the same IT service are placed on several (cumulus) clouds that are not only independent but actually unaware of each other. Replica consistency is ensured using CBFT, a new BFT protocol designed for wide area networks. CBFT uses a primary to handle contention among multiple client requests but shares the load of multi- casting and encrypting them among the clients. We evaluate CBFT on an Emulab cluster with a wide area topology and convey its scalability with respect to state of the art BFT protocols.
Regularization of RIF blind image deconvolution (2000)

Blind image restoration is the process of estimating both the true image and the blur from the degraded image, using only partial information about degradation sources and the imaging system. Our main interest concerns optical image enhancement, where the degradation often involves a convolution process. We provide a method to incorporate truncated eigenvalue and total variation regularization into a nonlinear recursive inverse filter (RIF) blind deconvolution scheme first proposed by Kundar, and by Kundur and Hatzinakos. Tests are reported on simulated and optical imaging problems.
[Effects of laminin on the invasive and metastatic behaviors of human salivary adenoid cystic carcinoma cell lines]. (1999)

The result suggests LN and LNR may play a vitral role in the invasion and metastasis of Acc.
Identification of a novel interspecific hybrid yeast from a metagenomic spontaneously inoculated beer sample using Hi‐C (2017)

Interspecific hybridization is a common mechanism enabling genetic diversification and adaptation; however, the detection of hybrid species has been quite difficult. The identification of microbial hybrids is made even more complicated, as most environmental microbes are resistant to culturing and must be studied in their native mixed communities. We have previously adapted the chromosome conformation capture method Hi-C to the assembly of genomes from mixed populations. Here, we show the method's application in assembling genomes directly from an uncultured, mixed population from a spontaneously inoculated beer sample. Our assembly method has enabled us to de-convolute four bacterial and four yeast genomes from this sample, including a putative yeast hybrid. Downstream isolation and analysis of this hybrid confirmed its genome to consist of Pichia membranifaciens and that of another related, but undescribed, yeast. Our work shows that Hi-C-based metagenomic methods can overcome the limitation of traditional sequencing methods in studying complex mixtures of genomes. Copyright © 2017 John Wiley & Sons, Ltd.
Supplementary Figure from Efficacy of CD40 Agonists Is Mediated by Distinct cDC Subsets and Subverted by Suppressive Macrophages (2023)

Supplementary Figure from Efficacy of CD40 Agonists Is Mediated by Distinct cDC Subsets and Subverted by Suppressive Macrophages
Improvements in the instantaneous-bandwidth capability of RF power transistors using in-package high-k capacitors (2011)

Summary form only given, as follows. RF power transistors, by design, have an upper limit to the input-signal bandwidth that can be amplified without incurring excessive distortion. In this paper, we demonstrate a technique to improve the ‘video-bandwidth’ (VBW) capability of RF Power transistors using high-k capacitors. The improvement is more than 2 times a standard device. Also, digital predistortion performance is demonstrated with excellent results for narrow band as well as wideband signals (50MHz).
Nanonetwork Thermosets from Templated Polymerization for Enhanced Energy Dissipation (2021)

Herein, we aim to develop a facile method for the fabrication of mechanical metamaterials from templated polymerization of thermosets including phenolic and epoxy resins using self-assembled block copolymer, polystyrene-polydimethylsiloxane with tripod network (gyroid), and tetrapod network (diamond) structures, as templates. Nanoindentation studies on the nanonetwork thermosets fabricated reveal enhanced energy dissipation from intrinsic brittle thermosets due to the deliberate structuring; the calculated energy dissipation for gyroid phenolic resins is 0.23 nJ whereas the one with diamond structure gives a value of 0.33 nJ. Consistently, the gyroid-structured epoxy gives a high energy dissipation value of 0.57 nJ, and the one with diamond structure could reach 0.78 nJ. These enhanced properties are attributed to the isotropic periodicity of the nanonetwork texture with plastic deformation, and the higher number of struts in the tetrapod diamond network in contrast to tripod gyroid, as confirmed by the finite element analysis.
A reduced sufficient statistics tracking algorithm for infared images (2002)

The problem of tracking a target using a sequence of infrared (IR) images is addressed. A Bayes-closed estimation algorithm developed by Kulhavy (see International Journal of Adaptive Control and Signal Processing, vol.4, p.271-285, 1990) is shown to be well-suited to the IR tracking problem. Due to the form of the model for the radiation intensity pattern on the IR focal plane array, closed-form expressions are found for the reduced sufficient statistics (RSS) which are used to approximate the true posterior density in the Kulhavy algorithm. An estimate of the target state is then derived via a reconstruction formula from the RSS. For comparison, both a previously developed IR tracking algorithm based on an extended Kalman filter (EKF) and the new RSS-based algorithm are used to track a target through a sequence of IR images. It is shown, that the RSS algorithm can maintain track in high velocity scenarios where the EKF diverges.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Synthesis, structure and electron spectra of fused quartz doped with titanium, cerium and neodymium (1988)

Vitreous silica doped with titanium, cerium or neodymium having specific optical properties was produced by fusing rock crystal or quartz minerals in an electrical vacuum furnace. The dissolution of titanium, cerium and neodymium compound s in vitreous sliica is facilitated by aluminum, either present in the raw material or introduced for this purpose in the form of added chemical compounds. The role of the doping ions in the structure was interpreted on the basis of their electron spectra.
Data Conversion Circuits – D/A and A/D Converters (2007)

This chapter contains sections titled: Digital-to-Analogue Converters D/A Converter Specifications Types of D/A Converter Modes of Operation BCD-Input D/A Converter Integrated Circuit D/A Converters D/A Converter Applications A/D Converters A/D Converter Specifications A/D Converter Terminology Types of A/D Converter Integrated Circuit A/D Converters A/D Converter Applications Review Questions Problems Further Reading
Segregation at a small scale: synthesis of core–shell bimetallic RuPt nanoparticles, characterization and solid state NMR studies (2012)

Core–shell small RuPt nanoparticles stabilized by a polymer (polyvinylpyrrolidone, PVP) have been prepared by co-decomposition of [Ru(COD)(COT)] [(1,5-cyclooctadiene)(1,3,5-cyclooctatriene)ruthenium] and [Pt(CH3)2(COD)] [dimethyl(1,5-cyclooctadiene)platinum(II)] organometallic complexes at room temperature. The control of the metal segregation is made possible by the difference in the decomposition temperature of the metal precursors, giving rise to a heterogeneous nucleation process. The structural composition of these nanoparticles has been determined by a combination of techniques (TEM, HREM, WAXS, EXAFS, STEM-HAADF, IR, NMR). In particular, after adsorption of 13CO as a probe molecule, solid-state NMR investigation provided useful information on the chemical segregation in these nanoparticles.
A Report on the Natural Duration of Cancer. (1927)

As a result of scientific investigation of the length of life of persons with cancer, the author concludes that an untreated victim of cancer of the breast has 17.2 per cent of the normal duration of life to accept; a woman operated on under the most favorable conditions has 68.5 per cent, and one operated on under the present unsatisfactory conditions has 30.4 per cent of the normal duration. The advantage secured, therefore, by the woman operated on under the most favorable existing conditions is 51.3 per cent. The author estimates that the annual quota of new cases of cancer of the breast in England and Wales is numbered at at least 5,000, and that if all of these were operated on under the most favorable conditions, more than 30,000 years of life would be gained for this group. In brief, the normal expectation of life of a woman aged
Geothermal Drilling Research in the United States (1980)

Current research and development in the following areas are presented: geothermal roller cone bits, polycrystalline diamond compact bits, a continuous chain drill, drilling fluids test equipment, mud research, inert fluids, foam fluids, lost circulation control, completion technology, and advanced drilling and completion systems. (MHR)
Effect of qualitative modification of light on the carotenoid contents in Vitis vinifera L.cv.Syrah berries (1998)

International audience
Hidden Corrosion Detection with Guided Waves (1997)

Abstract A corrosion detection feasibility study with ultrasonic guided waves is presented. Rather than use normal beam ultrasonic techniques that move point by point over the structure being examined, guided waves are more global in nature allowing examination of regions over 2-3 cm on up to 4-5m with reasonable efficiency in corrosion detection and in estimating average wall thickness between the two transducers. A sample problem in aging aircraft inspection for fuselage thinning is studied and used to illustrate the guided wave inspection procedure and potential for classification and sizing analysis. Special sensitivities to certain kinds of defects are possible with guided waves as a result of wave structure changes across the thickness of the structure by simple mode and frequency changes. A variable angle beam probe and multiple array comb type transducer are considered for flexibility in mode selection and isolation on the dispersion diagrams in order to achieve the special wave structures required for corrosion detection and also for reasonable penetration power. Going beyond the initial feasibility study of guided wave application for the detection of corrosion, a number of tools are developed that can be used in future work to more accurately detect, size, and classify corrosion types in various structures. Boundary element modeling analysis, for example, allows the calculation of reflection and transmission factors for a particular mode and frequency input to a particular pitting or corrosion type defect. This can be followed by detailed feature analysis for subsequent use in neural net algorithm development for corrosion analysis. The physically based features from guided wave analysis can than be used to provide insight and guidance into the algorithm development program using pattern recognition and neural nets.
Suprapubic Endoscopic Vesical Neck Suspension for the Management of Urinary Incontinence in Myelodysplastic Girls (1986)

Urinary incontinence may be a formidable hardship in many girls with myelodysplasia. In those patients who fail treatment with intermittent self-catheterization and pharmacotherapy surgical augmentation of outlet resistance may successfully alleviate incontinence. In patients with less severe degrees of urethral sphincteric incompetence suprapubic endoscopic vesical neck suspension in conjunction with intermittent self-catheterization can be successful. Patients must be selected carefully, with particular attention directed at detecting decreased detrusor compliance. Poor detrusor compliance must be controllable or corrected before augmentation of urethral resistance to prevent postoperative upper urinary tract deterioration.