gebhart/patrepeval huggingface dataset:
Secure data management system with traceability against internal leakage (2017)

The management of sensitive data in an organization is not limited to use authentication and encrytion systems. Actually, malicious users inside of an organization will leak sensitive data to adversaries if the users are privileged to access to the data. In this study, we enable a manager to identify the traitor(s) inside of an organization from the leaked data. The essential technique is the fingerprinting for encrypted data. When a user decrypts a ciphertext using the secret key assigned to the user, the decrypted data involves the information associated with the user. We propose such an access control system by combining an attribute-based encryption scheme and fingerprinting scheme. The proposed method prevents a dishonest manager from framing innocent users by realizing the asymmetric protocol using the fingerprinting scheme based on a key management.
Secure physical-layer communication based on directly modulated antenna arrays (2012)

An antenna system configured to provide direction dependent modulation is shown to increase the security of data transmission. The antenna is based on an array with wide element spacing combined with directional array elements. The array system investigated here consists of only two elements but the approach is general and can be extended to multi-element array systems. The directional error rate characteristics of the directly modulated array system, in a given direction, can be significantly improved by increasing the element spacing. The error rate performance of the directly modulated array system is compared to that of an equivalent array configured for conventional baseband modulation.
Application of network calculus to general topologies using turn-prohibition (2003)

Network calculus is known to apply in general only to feedforward routing networks, i.e., networks where routes do not create cycles of interdependent packet flows. We address the problem of using network calculus in networks of arbitrary topology. For this purpose, we introduce a novel graph-theoretic algorithm, called turn-prohibition (TP), that breaks all the cycles in a network and, thus, prevents any interdependence between flows. We prove that the TP-algorithm prohibits the use of at most 1/3 of the total number of turns in a network, for any network topology. Using analysis and simulation, we show that the TP-algorithm significantly outperforms other approaches for breaking cycles, such as the spanning tree and up/down routing algorithms, in terms of network utilization and delay bounds. Our simulation results also show that the network utilization achieved with the TP-algorithm is within a factor of two of the maximum theoretical network utilization, for networks of up to 50 nodes of degree four. Thus, in many practical cases, the restriction of network calculus to feedforward routing networks may not represent a too significant limitation.
Vitellogenin Recognizes Cell Damage through Membrane Binding and Shields Living Cells from Reactive Oxygen Species (2013)

Large lipid transfer proteins are involved in lipid transportation and diverse other molecular processes. These serum proteins include vitellogenins, which are egg yolk precursors and pathogen pattern recognition receptors, and apolipoprotein B, which is an anti-inflammatory cholesterol carrier. In the honey bee, vitellogenin acts as an antioxidant, and elevated vitellogenin titer is linked to prolonged life span in this animal. Here, we show that vitellogenin has cell and membrane binding activity and that it binds preferentially to dead and damaged cells. Vitellogenin binds directly to phosphatidylcholine liposomes and with higher affinity to liposomes containing phosphatidylserine, a lipid of the inner leaflet of cell membranes that is exposed in damaged cells. Vitellogenin binding to live cells, furthermore, improves cell oxidative stress tolerance. This study can shed more light on why large lipid transfer proteins have a well conserved α-helical domain, because we locate the lipid bilayer-binding ability of vitellogenin largely to this region. We suggest that recognition of cell damage and oxidation shield properties are two mechanisms that allow vitellogenin to extend honey bee life span.
Service mediation and negotiation bootstrapping as first achievements towards self-adaptable grid and cloud services (2009)

Nowadays, novel computing paradigms as for example Grid or Cloud Computing are gaining more and more on importance. In case of Cloud Computing users pay for the usage of the computing power provided as a service. Beforehand they can negotiate specific functional and non-functional requirements relevant for the application execution. However, providing computing power as a service bears different research challenges. On the one hand dynamic, versatile, and adaptable services are required, which can cope with system failures and environmental changes. On the other hand, human interaction with the system should be minimized. In this paper we present the first results in establishing adaptable, versatile, and dynamic services considering negotiation bootstrapping and service mediation achieved in context of the Foundations of Self-Governing ICT Infrastructures (FoSII) project. We discuss novel meta-negotiation and SLA mapping solutions for Grid/Cloud services bridging the gap between current QoS models and Grid/Cloud middleware and representing important prerequisites for the establishment of autonomic Grid/Cloud services. We present document models for the specification of meta-negotiations and SLA mappings. Thereafter, we discuss the sample architecture for the management of meta-negotiations and SLA mappings.
Failure of clonal deletion in neonatally thymectomized mice: tolerance is preserved through clonal anergy. (1990)

Self-tolerance is achieved in part through intrathymic deletion of self-reactive T cells. The necessity of the thymus for this process is suggested by the development of autoimmune diseases in neonatally thymectomized (neoTx) mice and by the failure of clonal deletion in nude mice. Indeed, the present study demonstrates that neonatal thymectomy on day 3 after birth results in the failure of clonal deletion of V beta 11+ T cells in BALB/c mice and V beta 5+ and V beta 6+ T cells in DBA/2 mice. However, these potentially autoreactive cells are nonfunctional as measured by proliferation and lymphokine production after stimulation with appropriate anti-V beta mAbs or stimulator cells. It appears that this induction of nonresponsiveness may have occurred extrathymically: the early neonatal thymus (presumably the source of the peripheral T cells observed in neoTx mice) also contains T cells with self-reactive receptors, but these cells are fully functional. Therefore, neonatal thymectomy aborts deletion of self-reactive T cells, but self-tolerance is maintained through functional inactivation of potentially self-reactive clones.
Analysis of<i>N</i>-glycan in serum glycoproteins from<i>db/db</i>mice and humans with type 2 diabetes (2007)

Glycosylation has an important role in regulating properties of proteins and is associated with many diseases. To examine the alteration of serum N-glycans in type 2 diabetes, we used the db/db mouse model. Serum N-glycans were fluorescence labeled and applied to HPLC. There were reproducible differences in N-glycan profiles between the db/db mouse model and the db/+ control. The structures of the oligosaccharides, which had changed in their amounts, were analyzed by a two-dimensional mapping method, matrix-assisted laser desorption ionization-time-of-flight mass spectrometry, and exoglycosidase digestion. Those analyses revealed an increase in the N-glycans possessing alpha1,6-fucose in the serum of db/db mice. The level of alpha1,6-fucosyltransferase mRNA was increased in the liver of the db/db mice. The ratio of a biantennary N-glycan with alpha1,6-fucose to that without alpha1,6-fucose in the liver tissue of the db/db mouse was increased relative to the db/+ control. Next, we analyzed the serum N-glycan profile in human subjects with type 2 diabetes and found an increased amount of a biantennary N-glycan that had an alpha1,6-fucose with a bisecting N-acetylglucosamine. In conclusion, the increase in alpha1,6-fucosylation is a striking change in the serum N-glycans of the db/db mice, whereas the change in the fucosylation in humans with type 2 diabetes was small, albeit statistically significant. It is likely that the change is caused, at least partially, by the increase in the alpha1,6-fucosyltransferase mRNA level in the liver. The increased alpha1,6-fucosylation may affect protein properties associated with the pathophysiology of type 2 diabetes.
Using on-chip test pattern compression for full scan SoC designs (2002)

In todays mixed signal System-on-Chip designs advanced Design-for-Test techniques become more and more important to meet test coverage and quality requirements. However, standard strategies often cannot be used because of design specific requirements like the limitation of available input and output pins. This paper describes the Design-for-Test strategy of the latest version of Motorola's chip family for a mixed signal application. Deterministic test pattern, which are generated using an ATPG tool, have been used to stimulate the design and achieve efficient and high test coverage. The memories are tested by using a memory BIST implementation. The limitation of available digital input and output pins is solved in two ways. Analog input pins have been modified to serve as digital pins in test mode. On-chip test pattern compression using a multiple input shift register (MISR) is used to reduce the number of required output pins. Failure diagnostic capabilities have been implemented to allow debug of failing devices. The paper describes the test strategy for the System-on-Chip device and outlines the design flow which was used to implement it.
An improved analytic expression for write amplification in NAND flash (2012)

Agarwal et al. gave a closed-form expression for write amplification in NAND flash memory by finding the probability of a page being valid over the whole flash memory. This paper gives an improved analytic expression for write amplification in NAND flash memory by finding the probability of a page being invalid in the block selected for garbage collection. The improved expression uses the Lambert W function. Through asymptotic analysis, write amplification is shown to depend on the overprovisioning factor only, consistent with the previous work. Comparison with numerical simulations shows that the improved expression achieves a more accurate prediction of write amplification. For example, when the overprovisioning factor is 0.3, the improved expression gives a write amplification of 2.36 whereas that of the previous work gives 2.17, when the actual value is 2.35.
The Galaxy Evolution Explorer (2003)

The Galaxy Evolution Explorer (GALEX), a NASA Small Explorer Mission planned for launch in Fall 2002, will perform the first Space Ultraviolet sky survey. Five imaging surveys in each of two bands (1350-1750 and 1750-2800) will range from an all-sky survey (limit m AB ~20-21) to an ultra-deep survey of 4 square degrees (limit m AB ~26). Three spectroscopic grism surveys (R=100-300) will be performed with various depths (m AB ~20-25) and sky coverage (100 to 2 square degrees) over the 1350-2800 band. The instrument includes a 50 cm modified Ritchey-Chrtien telescope, a dichroic beam splitter and astigmatism corrector, two large sealed tube microchannel plate detectors to simultaneously cover the two bands and the 1.2 degree field of view. A rotating wheel provides either imaging or grism spectroscopy with transmitting optics. We will use the measured UV properties of local galaxies, along with corollary observations, to calibrate the UV-global star formation rate relationship in galaxies. We will apply this calibration to distant galaxies discovered in the deep imaging and spectroscopic surveys to map the history of star formation in the universe over the red shift range zero to two. The GALEX mission will include an Associate Investigator program for additional observations and supporting data analysis. This will support a wide variety of investigations made possible by the first UV sky survey.
Interferometric measurement of substrate heating induced by pulsed laser irradiation (1988)

A simple interferometric technique for the study of radiation induced transient heating is demonstrated for the specific case of a glass substrate irradiated with pulsed 193-nm excimer laser radiation. The technique relies on the fact that the optical path length of (633 nm) probe laser light within the substrate is sensitive to heat-induced changes in the refractive index and thickness of the substrate. Interference between probe laser reflections from the front and back surfaces of the substrate allows these optical path length changes to be deduced from measured changes in sample reflectance. The technique offers fast response and is shown to be nearly quantitative.
Effect of antidiabetic compounds on glyoxalase I activity in experimental diabetic rat liver. (1999)

The activity of glyoxalase I from the soluble fraction of diabetic rat liver was found to decrease as compared to the control. Sodium orthovanadate in drinking water and Trigonella foenum graecum seed powder when administered to these diabetic animals were found to reverse the activity of glyoxalase I to control values. A combination of the above two antidiabetic compounds showed a better reversal. Vanadate and Trigonella seed powder treatment separately to diabetic rats also normalized hyperglycemia together with glyoxalase I activity. A combination of vanadate and Trigonella seed powder also restored the other general parameters of the diabetic animals.
Design of integrated-circuit interconnects with accurate modeling of chemical-mechanical planarization (2005)

Dummy fill insertion in Chemical-mechanical Planarization (CMP) can change the coupling and total capacitance of interconnect. Moreover, dishing and erosion phenomena change interconnect cross-sections and hence significantly affect interconnect resistance. This work first studies interconnect parasitic variations due to (1) different fill patterns that are nominally "equivalent" with respect to foundry rules; and (2) dishing and erosion of conductors and dielectric using an accurate density-step-height model for multi-step CMP from the literature. Our results show that for long parallel wires the variation of coupling capacitance between adjacent wires can be up to 25% and 300% for wires that are 3x and 6x minimum space apart respectively, and the variation of total wire capacitance can be more than 10%. We also show that the variation of wire resistance due to dishing and erosion can be over 30%. This work also evaluates how CMP effects (fill insertion, dishing and erosion) impact the achievable delay of buffered global on-chip interconnects. We obtain the delay of buses from accurate SPICE simulations considering CMP-related parasitic variation. Our studies show that the interconnect design considering fill and buffer insertion simultaneously with CMP effects reduces the unit length delay of global interconnect bus by up to 3.3% over the design which does not consider any CMP effects.
Neural and orofacial defects in Folbp1 knockout mice (2003)

Impairment of Folbp1 gene function adversely impacts the expression of several critical signaling molecules. Mis-expression of these molecules, perhaps mediated by Shh, may potentially contribute to the observed failure of neural tube closure and the development of craniofacial defects in the mutant mice.
<title>Image coding using adaptive-blocksize Princen-Bradley transform</title> (1991)

This paper describes the extension of Princen-Bradley transform,1,2 or MDCT, to a variable blocksize case and its application to image coding. An adaptive window scheme is also introduced and window shape selection mechanism is carefully considered. By introducing an adaptive blocksize and adaptive window scheme into MDCT image coding, the coding efficiency has been improved while maintaining the same high subjective image quality of MDCT coding. General conditions for perfect signal reconstruction of adaptive blocksize MDCT are mathematically derived in the appendix.
General Chemistry (Schoch, Eugene Paul; Felsing, William August) (1932)

ADVERTISEMENT RETURN TO ISSUEPREVBook and Media Revie...Book and Media ReviewNEXTGeneral Chemistry (Schoch, Eugene Paul; Felsing, William August)C. E. White Cite this: J. Chem. Educ. 1932, 9, 3, 601Publication Date (Print):March 1, 1932Publication History Received3 August 2009Published online1 March 1932Published inissue 1 March 1932https://doi.org/10.1021/ed009p601.1RIGHTS & PERMISSIONSArticle Views67Altmetric-Citations-LEARN 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 InReddit PDF (489 KB) Get e-Alerts Get e-Alerts
NMR Assignment Methods for the Aromatic Ring Resonances of Phenylalanine and Tyrosine Residues in Proteins (2005)

The unambiguous assignment of the aromatic ring resonances in proteins has been severely hampered by the inherently poor sensitivities of the currently available methodologies developed for uniformly 13C/15N-labeled proteins. Especially, the small chemical shift differences between aromatic ring carbons and protons for phenylalanine residues in proteins have prevented the selective observation and unambiguous assignment of each signal. We have solved all of the difficulties due to the tightly coupled spin systems by preparing regio-/stereoselectively 13C/2H/15N-labeled phenylalanine (Phe) and tyrosine (Tyr) to avoid the presence of directly connected 13C-1H pairs in the aromatic rings. The superiority of the new labeling schemes for the assignment of aromatic ring signals is clearly demonstrated for a 17 kDa calcium binding protein, calmodulin.
Study on ketalization reaction of poly(vinyl alcohol) by ketones. IX. Kinetic study on acetalization and ketalization reaction of 1,3-butanediol as a model compound for poly(vinyl alcohol) (1997)

A kinetic study was carried out on the acetalization reaction of 1,3-butanediol, as a model compound for poly(vinyl alcohol) (PVA), in water, under acidic conditions. Since these equilibrium constants of ketalization reaction of 1,3-butanediol and ethylene glycol are so small, the kinetic parameters were estimated from the hydrolysis reactions of the corresponding ketals. It was made clear that these reactions proceed in the reversible bimolecular reaction, and the heat of reaction and activation energy are nearly equal to that of PVA. The rate constants of hydrolysis reaction (k′s) of model compounds were calculated on the basis of value of acetone ketal, Hammett-Taft's equation log k′s/k′so – 0.54(n – 6) = ρ*σ* was established, and the value of ρ* was obtained (3.60), which coincided with the value of PVA. Therefore, it was made clear that the hydrolysis reactions of acetals and ketals are electrophilic reaction (SE II reaction) and the step of rate determination is the formation of hemiacetal and hemiketal. The rate constants of hydrolysis reaction of 1,3-butanediol acetals and ketals were approximately 10–20 larger, and those of ethylene glycol were approximetly 50–80 larger except for ketals, and those of ethanol were roughly 2000–10,000 larger compared with that of high-molecular weight compound (PVA). It can be well explained that these differences in the rate constant depend on their entropy and the mobility of molecules. © 1997 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 35: 1719–1931, 1997
Spectral distribution of UV range diffuse reflectivity for Si<sup>+</sup>ion implanted polymers (2008)

The analysis of the UV range spectral characteristics can supply additional information on the formed sub-surface buried layer with implanted dopants. The near-surface layer (50÷150 nm) of bulk polymer samples have been implanted with silicon (Si+) ions at low energies (E = 30 keV) and a wide range of ion doses (D = 1.1013 ÷ 1, 2.1017 cm−2). The studied polymer materials were: ultra-high-molecular-weight polyethylene (UHMWPE), poly-methyl-metacrylate (PMMA) and poly-tetra-fluor-ethylene (PTFE). The diffuse optical reflectivity spectra Rd = f(λ) of the ion implanted samples have been measured in the UV range (λ = 220÷350 nm). In this paper the dose dependences of the size and sign of the diffuse optical reflectivity changes λRd = f(D) have been analysed.
Fluorocarbon Bromides (1946)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFluorocarbon BromidesT. J. Brice, W. H. Pearlson, and J. H. SimonsCite this: J. Am. Chem. Soc. 1946, 68, 6, 968–969Publication Date (Print):June 1, 1946Publication History Published online1 May 2002Published inissue 1 June 1946https://pubs.acs.org/doi/10.1021/ja01210a017https://doi.org/10.1021/ja01210a017research-articleACS PublicationsRequest reuse permissionsArticle Views304Altmetric-Citations17LEARN 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
Oral and intra-articular remedies: Review of papers published from March 2001 to February 2002 (2002)

There have been considerable advances in the drug treatments used to treat osteoarthritis. The development of selective cyclo-oxygenase inhibitors (COX-II) and confirmation of their efficacy and gastrointestinal safety will reduce treatment morbidity in the elderly. Guidelines for safe and appropriate use of COX-II drugs are now available. The role of anti-inflammatory drugs in precipitating cardiorenal events has been highlighted but remains to be fully evaluated. Glucosamine, diacerein, and hyaluronan may all be disease-modifying drugs for osteoarthritis but confirmatory studies are still needed.