gebhart/patrepeval huggingface dataset:
A Study of Searchable and Auditable Attribute Based Encryption in Cloud (2020)

In cloud computing, the data is stored and retrieved through the internet. There are some common systems for cloud storage which includes the system for e-health records, the file stored on to the cloud server includes information which is private and sensitive, and the main focus should be that at the time when data gets shared, the content of the file should not be revealed. One of the ways to secure the file data is to simply encrypt the file, but on the other side, the authenticate user to which the data is shared will not be able to use it. User's time and memory are saved by Storing data in the cloud. The main issue is that the user loses total control over the once it is upload. This issue needs to be addressed while designing the system. In this paper the study of various mechanisms and techniques for data security stored over the cloud and hiding of the sensitive and private data. The paper also discusses the various issues faced while using or applying the techniques. Here, a system is proposed to use the encryption techniques, algorithms as well as secure cloud storage.
Estimation of brain iron concentration in vivo using a linear relationship between regional iron and apparent transverse relaxation rate of the tissue water at 4.7T (2009)

Maps of the apparent transverse relaxation time (T(2) were collected on a transaxial plane across the basal ganglia in 54 healthy subjects at 4.7T using a multiecho adiabatic spin-echo (MASE) imaging sequence. We attempted to quantify the nonhemin iron concentration ([Fe]) in various brain regions in vivo based on the linear relationship between the apparent relaxation rate constant (R(2) = 1/T(2) and regional [Fe], as demonstrated previously in 12 subjects. The calculated [Fe] in five gray matter (GM) regions agreed well with the previously reported regional iron distribution as well as reproduced its age-dependent change. In particular, a decrease of iron in the thalamus region in subjects over 30 years of age was demonstrated while an upward trend was shown in other regions. Furthermore, the average R(2) in each GM region in subjects over 30 years of age showed a deviation from the regression line with [Fe] in an identical manner to that obtained in the previous 12 subjects. This strongly suggests that there is a systematic regional factor affecting R(2), in addition to iron. Interregional difference in the macromolecular mass fraction (f(M)) explained this systematic deviation well. When accounting for f(M) in the analysis, the apparent transverse relaxation rate seems to give a significantly better estimation of regional [Fe].
Trust Measurement Model of Services Computing Systems: A Case Study on E-commerce Systems (2018)

Information technology has developed rapidly. The rapid development of IT is stimulated by users who want a fast-paced service. Many IT-based services are circulating in the community, all with the aim to be more effective and efficient in the service process. An example of a service is e-commerce, where e-commerce includes several integrated business services including sales services, payment services, and shipping services. All of these services are wrapped in computing so this is what is called a service computing system. This e-commerce service is very dependent on the customer-sourced profile, so the customer's trust in shopping on e-commerce is needed. For that e-commerce services must provide a high sense of trust that ultimately customers can survive and can provide recommendations to other customers. Challenges related to trust are the extent to which trust can be measured, which shows that the trust created can be seen qualitatively. This paper provides an overview of how studies include trust in service computing systems, how to measure trust in service computing systems. Measurement testing through data simulation. The results of the trial obtained results that show that trust can be measured in e-commerce case studies.
Is in vitro micrografting a possible valid alternative to traditional micropropagation in Cactaceae? Pelecyphora aselliformis as a case study (2016)

Several taxa of Cactaceae are endangered by overcollection for commercial purposes, and most of the family is included in the Convention on International Trade in Endangered Species of Fauna and Flora (CITES). Micropropagation may play a key role to keep the pressure off wild populations and contribute to ex situ conservation of endangered taxa. One of the limits of micropropagation is the species-specific requirement of plant regulators for each taxon and sometimes even for different genotypes. With the micrografting technique the rootstock directly provides the scion with the necessary hormonal requirements. In this paper we present data on in vitro grafting of Pelecyphora aselliformis Ehrenberg, an Appendix I CITES listed species critically endangered and sought after by the horticultural trade, on micropropagated Opuntia ficus-indica Miller. Apical and sub-apical scions of P. aselliformis were used to perform micrografting with a successful rate of 97 and 81 % respectively. Survival rate after ex vivo transfer was 85 %. We hypothesize that this method could be applied to other endangered, slow growing taxa of Cactaceae thus contributing to the conservation of this endangered family.
Magnetospinography visualizes electrophysiological activity in the cervical spinal cord (2017)

Diagnosis of nervous system disease is greatly aided by functional assessments and imaging techniques that localize neural activity abnormalities. Electrophysiological methods are helpful but often insufficient to locate neural lesions precisely. One proposed noninvasive alternative is magnetoneurography (MNG); we have developed MNG of the spinal cord (magnetospinography, MSG). Using a 120-channel superconducting quantum interference device biomagnetometer system in a magnetically shielded room, cervical spinal cord evoked magnetic fields (SCEFs) were recorded after stimulation of the lower thoracic cord in healthy subjects and a patient with cervical spondylotic myelopathy and after median nerve stimulation in healthy subjects. Electrophysiological activities in the spinal cord were reconstructed from SCEFs and visualized by a spatial filter, a recursive null-steering beamformer. Here, we show for the first time that MSG with high spatial and temporal resolution can be used to map electrophysiological activities in the cervical spinal cord and spinal nerve.
Outbreak of Highly Pathogenic Avian Influenza in Japan and Anti-Influenza Virus Activity of Povidone-Iodine Products (2006)

Viral infectious titers were reduced to levels below the detection limits by incubation for only 10 s with the PVP-I products used in this study. These results indicate that PVP-I products have virucidal activity against avian influenza A viruses. Therefore, the PVP-I products are useful in the prevention and control of human infection by avian influenza A viruses.
Brush Seals for Cryogenic Applications: Performance, Stage Effects, and Preliminary Wear Results in LN2 and LH2 (1996)

Brush seals are compliant contacting seals and have significantly lower leakage than labyrinth seals in gas turbine applications. Their long life and low leakage make them candidates for use in rocket engine turbopumps. Brush seals, 50.8 mm (2 in.) in diameter with a nominal 127-micron (0.005-in.) radial interference, were tested in liquid nitrogen (LN2) and liquid hydrogen (LH2) at shaft speeds up to 35,000 and 65,000 rpm, respectively, and at pressure drops up to 1.21 MPa (175 psid) per brush. A labyrinth seal was also tested in liquid nitrogen to provide a baseline. The LN2 leakage rate of a single brush seal with an initial radial shaft interference of 127 micron (0.005 in.) measured one-half to one-third the leakage rate of a 12-tooth labyrinth seal with a radial clearance of 127 micron (0.005 in.). Two brushes spaced 7.21 micron (0.248 in.) apart leaked about one-half as much as a single brush, and two brushes tightly packed together leaked about three-fourths as much as a single brush. The maximum measured groove depth on the Inconel 718 rotor with a surface finish of 0.81 micron (32 microinch) was 25 micron (0.0010 in.) after 4.3 hr of shaft rotation in liquid nitrogen. The Haynes-25 bristles wore approximately 25 to 76 micron (0.001 to 0.003 in.) under the same conditions. Wear results in liquid hydrogen were significantly different. In liquid hydrogen the rotor did not wear, but the bristle material transferred onto the rotor and the initial 127 micron (0.005 in.) radial interference was consumed. Relatively high leakage rates were measured in liquid hydrogen. More testing is required to verify the leakage performance, to validate and calibrate analysis techniques, and to determine the wear mechanisms. Performance, staging effects, and preliminary wear results are presented.
Polyester Resin-Glass Fiber Laminates (1954)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolyester Resin-Glass Fiber LaminatesJohan Bjorksten, L. L. Yaeger, and J. E. HenningCite this: Ind. Eng. Chem. 1954, 46, 8, 1632–1635Publication Date (Print):August 1, 1954Publication History Published online1 May 2002Published inissue 1 August 1954https://pubs.acs.org/doi/10.1021/ie50536a035https://doi.org/10.1021/ie50536a035research-articleACS PublicationsRequest reuse permissionsArticle Views177Altmetric-Citations13LEARN 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 options Get e-Alerts
Slab scan diffusion imaging (2001)

For maximum robustness of a diffusion-weighted MR imaging sequence, it is desirable to use a single-shot imaging method. This article introduces a new single-shot imaging approach that combines the advantages of multiple spin-echoes with the technique of line scan diffusion imaging. A slab volume, which can be spatially encoded with fewer phase encodes than a regular field of view, is selected with 2D selective pulses. With the shorter echo train, the sensitivity to field inhomogeneities and chemical shift is thus greatly diminished. Further reduction is achieved by interleaving short gradient echo trains with refocusing spin-echo pulses. Optimized slice-selective RF pulses that produce flip angles close to 180 degrees are used to minimize the stimulated echo component. Motion-related phase shifts, which change polarity with each spin-echo excitation, will give rise to artifacts that are avoidable by processing even and odd spin-echoes separately. As with line scan diffusion imaging, the complete field of view is acquired by sequential scanning. Since with each shot several lines of data are collected, a considerable improvement over line scan diffusion imaging in terms of scanning speed is achieved. Diffusion data obtained in phantoms and normal subjects demonstrate the feasibility of this novel approach.
10.8 A 12-to-26GHz fractional-N PLL with dual continuous tuning LC-D/VCOs (2016)

High-performance, flexible clock synthesis is a key challenge in multiple applications, from high-data-rate I/O to reconfigurable radio and radar. Conventional wireline and wireless LC-VCO based PLLs can cover a large tuning range using multiple frequency bands [1, 2], typically using a calibration loop to select an operating band for the VCO, then allowing the PLL to lock within that band. In effect, the in-band frequency tuning range of a typical high-performance LC-VCO covers a small fraction of the total range, the remainder of which is covered using switched high-Q fixed capacitors. This approach has been favored first due to the typically inferior quality factor of analog varactors as compared to that of high-Q vertical natural capacitors (VNCs) with CMOS switches, and second due to the unacceptable noise sensitivity of the VCO control node if the tuning range is covered using a single high-gain varactor. This traditional banding strategy leads to a number of practical problems. First, the entire VCO frequency range cannot be traversed while maintaining glitch-free phase lock, as changing bands involves simultaneously switching in and out large capacitors. Further, the per-band tuning range must be wide enough to guarantee that mismatch between digitally switched capacitor banks does not result in holes in the frequency transfer curve of the VCO. Finally, sufficient tuning range to accommodate temperature-and supply variation-induced drift must be present within each selected band, placing stringent demands on adjacent band overlap and on band selection algorithms. While one component of eliminating coarse bands, stitching of tuning controls across discrete varactors, has been demonstrated in [3], the stitching was achieved over only a fraction of the total range of the oscillator.
Phagocytosis of Antibody-Coated Platelets by Human Granulocytes (1974)

To determine whether anti-platelet antibodies act as opsonins to promote phagocytosis of sensitized platelets, normal human platelets were exposed to a variety of serums containing anti-platelet antibodies, and then incubated with autologous granulocytes. Phagocytosis was observed microscopically, by uptake of 51Cr-labeled platelets, and by initial rate of reduction of nitroblue tetrazolium. Phagocytosis and the initial rate of dye reduction were increased as compared to control serums, by serums from 14 patients with idiopathic thrombocytopenic purpura, from 13 patients refractory to platelet transfusion, and from rabbits immunized with washed human platelets. The opsonic activities of serums from patients with idiopathic thrombocytopenic purpura persisted after treatment with steroids or splenectomy. Thus antibody-mediated phagocytosis may be important in the pathogenesis of idiopathic thrombocytopenic purpura and in the clearance of sensitized platelets. (N Engl J Med 290:989–993, 1974)
Development of the European Commissions Decisional Practice on Failing Division Defences (2015)

The Commission’s decisional practice in relation to the failing division defence has evolved. Earlier decisions did not permit the use of the defence where a division was failing but the parent able to continue to provide financial support, even if the parent was not incentivized to continue to support the division. This amounted, effectively, to a presumption that the financial reserves of a parent would be used to support a failing division even if that was not economically rational. Later decisions of the Commission distance themselves from the notion that such a presumption exists. They recognize that allowing failing divisions to exit can be an economically rational decision and where such exit is certain and can be demonstrated using robust and objectively justified financial data, the first limb of the failing division defence is satisfied. This article describes and synthesizes the evolution in the Commission’s decisional practice.
AC Dielectrophoresis Using Elliptic Electrode Geometry (2011)

This paper presents negative AC dielectrophoretic investigations using elliptic electrode geometry. Simulations of the electric field gradient variation using various ratios of the semimajor and the semiminor axis were carried out to determine the optimum elliptic geometry for the dielectrophoretic electrokinetics of specimen in an assay with laminar (low Reynolds number) fluid flow. Experimental setup of the elliptic electrode assembly using PCB fabrication and electrokinetic accumulation of specimen in a dielectrophoretic cage is also being reported. Using an actuating signal between 1 kHz and 1 MHz, successful trapping of 45 μ m polystyrene beads suspended in distilled water was demonstrated due to negative dielectrophoresis near 100 kHz using the novel elliptic electrode.
Sepsis is associated with increased mRNAs of the ubiquitin-proteasome proteolytic pathway in human skeletal muscle. (1997)

Previous studies provided evidence that sepsis-induced muscle proteolysis in experimental animals is caused by increased ubiquitin-proteasome-dependent protein breakdown. It is not known if a similar mechanism accounts for muscle proteolysis in patients with sepsis. We determined mRNA levels for ubiquitin and the 20 S proteasome subunit HC3 by Northern blot analysis in muscle tissue from septic (n = 7) and non-septic (n = 11) patients. Plasma and muscle amino acid concentrations and concentrations in urine of 3-methylhistidine (3-MH), creatinine, and cortisol were measured at the time of surgery to assess the catabolic state of the patients. A three- to fourfold increase in mRNA levels for ubiquitin and HC3 was noted in muscle tissue from the septic patients concomitant with increased muscle levels of phenylalanine and 3-MH and reduced levels of glutamine. Total plasma amino acids were decreased by approximately 30% in the septic patients. The 3-MH/creatinine ratio in urine was almost doubled in septic patients. The cortisol levels in urine were higher in septic than in control patients but this difference did not reach statistical significance. The results suggest that sepsis is associated with increased mRNAs of the ubiquitin-proteasome pathway in human skeletal muscle.
Transgenic rice lines that include barley genes have increased tolerance to low iron availability in a calcareous paddy soil (2008)

Abstract Iron (Fe) deficiency stress is a widespread problem in agriculture and must be overcome to increase crop yields, particularly in calcareous soils. Unlike barley, rice, one of the three major crops in the world, is very susceptible to low Fe availability because of a low capacity to secrete mugineic acid family phytosiderophores (MAs), which are Fe chelators secreted by graminaceous plants. We tested three transgenic rice lines possessing three barley genes involved in MAs synthesis in a field experiment on a calcareous soil under paddy conditions. Two rice lines, one with a barley gene encoding nicotianamine synthase (NAS) and the other with a barley gene encoding a dioxygenase, referred to as Fe-deficiency specific clone no. 3 (IDS3), showed higher tolerance to low Fe availability under these conditions. The rice line with the IDS3 gene also had increased concentrations of Fe and zinc (Zn) in the grains. These results show that introducing barley genes involved in the synthesis of MAs into rice is an effective and practical method to improve agricultural productivity in calcareous soils.
A fast 8Kx8 CMOS SRAM with internal power down design techniques (1985)

A 35-ns 8K/spl times/8 CMOS SRAM with address-transition detection design techniques and a novel architecture is described. This design uses a 1.5-/spl mu/m HCMOS twin-well process with polycide gates. A technique for generating internal timing which is impervious to address skew and glitches has been developed. At long cycle times the circuit automatically powers down to a 8-mA active current level with the part selected.
Structural implications of drug‐resistant mutants of HIV‐1 protease: High‐resolution crystal structures of the mutant protease/substrate analogue complexes (2001)

Emergence of drug-resistant mutants of HIV-1 protease is an ongoing problem in the fight against AIDS. The mechanisms governing resistance are both complex and varied. We have determined crystal structures of HIV-1 protease mutants, D30N, K45I, N88D, and L90M complexed with peptide inhibitor analogues of CA-p2 and p2-NC cleavage sites in the Gag-pol precursor in order to study the structural mechanisms underlying resistance. The structures were determined at 1.55-1.9-A resolution and compared with the wild-type structure. The conformational disorder seen for most of the hydrophobic side-chains around the inhibitor binding site indicates flexibility of binding. Eight water molecules are conserved in all 9 structures; their location suggests that they are important for catalysis as well as structural stability. Structural differences among the mutants were analyzed in relation to the observed changes in protease activity and stability. Mutant L90M shows steric contacts with the catalytic Asp25 that could destabilize the catalytic loop at the dimer interface, leading to its observed decreased dimer stability and activity. Mutant K45I reduces the mobility of the flap and the inhibitor and contributes to an enhancement in structural stability and activity. The side-chain variations at residue 30 relative to wild-type are the largest in D30N and the changes are consistent with the altered activity observed with peptide substrates. Polar interactions in D30N are maintained, in agreement with the observed urea sensitivity. The side-chains of D30N and N88D are linked through a water molecule suggesting correlated changes at the two sites, as seen with clinical inhibitors. Structural changes seen in N88D are small; however, water molecules that mediate interactions between Asn88 and Thr74/Thr31/Asp30 in other complexes are missing in N88D.
Do You <i>Really</i> Have a Free Chlorine Residual? (2008)

This article begins by discussing the US Environmental Protection Agency‐accepted colorimetric N,N‐diethyl‐pphenylenediamine (DPD) method as the most commonly used procedure to determine free chlorine residuals in water. The DPD indicator immediately reacts with free available chlorine, hypochlorous acid or hypochlorite ion, to form a pink color, which is proportional to the chlorine concentration. However, some DPD test results may be misleading because monochloramine residual interferes with DPD free analysis, creating a false‐positive, phantom reading. The article provides a series of questions that will help determine if free chlorine residual is really present in the water system. Phantom residuals are discussed, along with ammonia contamination. The article provides a phantom free chlorine checklist, chlorine demand calculations, and an interpretation of a breakpoint chlorination curve.