gebhart/patrepeval huggingface dataset:
Limits on the Power of Indistinguishability Obfuscation and Functional Encryption (2016)

Recent breakthroughs in cryptography have positioned indistinguishability obfuscation as a “central hub” for almost all known cryptographic tasks, and as an extremely powerful building block for new cryptographic tasks resolving long-standing and foundational open problems. However, constructions based on indistinguishability obfuscation almost always rely on non-black-box techniques, and thus the extent to which it can be used as a building block has been completely unexplored so far. We present a framework for proving meaningful negative results on the power of indistinguishability obfuscation. By considering indistinguishability obfuscation for oracle-aided circuits, we capture the common techniques that have been used so far in constructions based on indistinguishability obfuscation. These include, in particular, non-black-box techniques such as the punctured programming approach of Sahai and Waters [A. Sahai and B. Waters, How to use indistinguishability obfuscation: Deniable encryption, and more, in Proceedings of the 46th Annual ACM Symposium on Theory of Computing, ACM, New York, 2014, pp. 475--484] and its variants, as well as subexponential security assumptions. Within our framework we prove the first negative results on the power of indistinguishability obfuscation and of the tightly related notion of functional encryption. Our results are as follows: (1) There is no fully black-box construction of a collision-resistant function family from an indistinguishability obfuscator for oracle-aided circuits. (2) There is no fully black-box construction of a key-agreement protocol with perfect completeness from a private-key functional encryption scheme for oracle-aided circuits. Specifically, we prove that any such potential constructions must suffer from an exponential security loss, and thus our results cannot be circumvented using subexponential security assumptions. Our framework captures constructions that may rely on a wide variety of primitives in a non-black-box manner (e.g., obfuscating or generating a functional key for a function that uses the evaluation circuit of a puncturable pseudorandom function), and we only assume that the underlying indistinguishability obfuscator or functional encryption scheme itself is used in a black-box manner.
Acoustic measurements in a downflow of suspended particles (1999)

Acoustic measurements are sensitive to many particle property and flow parameters, and have a number of applications in monitoring of gas-solid processing equipment. To assist in the development of these applications it is useful to make experimental measurements of the acoustic properties of various gas-solid systems. In this work, measurements are made of the velocity and attenuation of acoustic waves propagating through dilute suspensions of 155μm mass mean diameter sand particles falling under gravity through a vertical column. Results are discussed, and compared with similar experiments and available theory.
Dextromethorphan/quinidine: a novel dextromethorphan product for the treatment of emotional lability (2006)

Dextromethorphan (DM) is among the most widely used, non-narcotic antitussives, with a predictable safety profile. In 1981, a non-opioid, high-affinity brain recognition site for DM was discovered, and since then a unique neuropharmacological profile has emerged for this 'old' drug , suggesting novel applications. However, an extensive body of research for DM alone in treating various neurological conditions has been inconsistent. This may be largely due to its rapid first-pass metabolism. DM is currently being reintroduced as the active ingredient in a novel combination product in which low-dose quinidine is added to inhibit its breakdown, elevating blood levels of DM and increasing its likelihood of reaching neuronal targets . This has opened new possibilities for therapeutic use; the best evidence at present being for neurological disorders affecting emotional control.
TOWARD LOCAL AND REGIONAL INVOLVEMENT IN HIGHWAY RESEARCH: STAKING OUT THE STARTING POINT AND THE ROAD AHEAD (2004)

The Research and Technology Coordinating Committee (RTCC), convened by the Transportation Research Board and funded by the Federal Highway Administration, has found from expert panel discussions and from questionnaire responses that each major research program area could develop and implement a stakeholder involvement process tailored to its needs. A range of techniques may be needed, including workshops and road shows; contacts through professional or technical organizations, advisory boards, and working groups; and dedicated websites.
Spontaneous degradation of polypeptides at aspartyl and asparaginyl residues: Effects of the solvent dielectric (1993)

We have investigated the spontaneous degradation of aspartate and asparagine residues via succinimide intermediates in model peptides in organic co-solvents. We find that the rate of deamidation at asparagine residues is markedly reduced in solvents of low dielectric strength. Theoretical considerations suggest that this decrease in rate is due to the destabilization of the deprotonated peptide bond nitrogen anion that is the postulated attacking species in succinimide formation. This result suggests that asparagine residues in regions with low dielectric constants, such as the interior of a protein or in a membrane bilayer, are protected from this type of degradation reaction. On the other hand, we found little or no effect on the rate of succinimide-mediated isomerization of aspartate residues when subjected to the same changes in dielectric constant. In this case, the destabilization of the attacking peptide bond nitrogen anion may be balanced by increased protonation of the aspartyl side chain carboxyl group, a reaction that results in a superior leaving group. Consequently, any protein structure or conformation that would increase the protonation of an aspartate side chain carboxyl group can be expected to render that residue more labile. These results may help explain why particular aspartate residues have been found to degrade in proteins at rates comparable to those of asparagine residues, even though aspartyl-containing peptides degrade more slowly than corresponding asparaginyl-containing peptides in aqueous solutions.
Monolithically stackable hybrid FPGA (2010)

The paper introduces novel field programmable gate array (FPGA) circuits based on hybrid CMOS/resistive switching device (memristor) technology and explores several logic architectures. The novel FPGA structure is based on the combination of CMOL (Cmos + MOLecular scale devices) FPGA circuits and recent improvements and generalization of the CMOL concept to allow multilayer crossbar integration, compatibility with state-of-the-art foundries, and a wide range of available memristive crosspoint devices. Preliminary results indicate that with no optimization and only conventional CMOS technology, the proposed circuits can be at least ten times denser (and potentially faster) than CMOS FPGAs with the same design rules and similar power density. The second part of this paper shows that this performance can be further improved using optimal MUX-based logic architecture.
Multiplex holography in strontium barium niobate with applied field (1992)

We characterize the performance of photorefractive Sr0.6Ba0.4Nb2O6 under an externally applied voltage. We compared the field dependences of the gain coefficient, response time, sensitivity, and diffraction efficiency with predictions of Kukhtarev’s solution [ Sov. Tech. Phys. Lett.2, 438 ( 1976)] for two-wave interaction, using material parameters obtained at zero voltage. Plane-wave holograms were superimposed in the crystal with angular multiplexing. The hologram capacity (or minimum diffraction efficiency) increased by an order of magnitude with a 15-kV/cm applied field.
Thionins (1991)

Thionins, Page 1 of 1 < Previous page | Next page > /docserver/preview/fulltext/arplant/42/1/annurev.pp.42.060191.001303-1.gif
Defining dysphagia – a modified multi-professional Danish Delphi study (2022)

The preferred definition was 'Dysphagia is a functional impairment that either prevents or limits the intake of food and fluids, and which makes swallowing unsafe, inefficient, uncomfortable or affects quality of life'. The definition was widely accepted among different health professional groups, patients and across sectors.
Waveguide of amorphous perfluoropolymer for visible light (2004)

We developed an amorphous polymer of cyclized perfluoropolymer, which is highly transparent throughout the visible range, and fabricated waveguides of the polymer for visible light. At a wavelength of 405nm, approximately 60% of lightwaves are propagated through the straight waveguide and over 50% of the lightwaves are propagated through the buried waveguides with a radius of more than 30mm, demonstrating the feasibility of the waveguides as light sources with a small angle of a beam divergence in a single mode. The waveguides are prospective candidates for multiple beams in line for parallel information processing, such as optical recording systems.
On the k-server conjecture (1994)

Article On the k-server conjecture Share on Authors: Elias Koutsoupias University of California, San Diego University of California, San DiegoView Profile , Christos Papadimitriou University of California, San Diego University of California, San DiegoView Profile Authors Info & Claims STOC '94: Proceedings of the twenty-sixth annual ACM symposium on Theory of ComputingMay 1994 Pages 507–511https://doi.org/10.1145/195058.195245Online:23 May 1994Publication History 38citation251DownloadsMetricsTotal Citations38Total Downloads251Last 12 Months4Last 6 weeks0 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access
Static penetration assessment of stone weapon tip geometry metrics and comparison of static and dynamic penetration depths (2022)

Abstract Many factors governed the penetration efficacy of prehistoric projectile weaponry. Archaeologists broadly focus their efforts on understanding the effect of stone weapon tips because these specimens are often the only part of the weapon system that survives in the archaeological record. The tip cross‐sectional area (TCSA) and perimeter (TCSP) of stone weapon tips have been shown to correlate with target penetration depth. Here, using results from both static and dynamic penetration testing, we compare TCSA and TCSP against other tip geometry metrics: lateral surface area (LSA) and volume (V). Our analyses broadly show that using a single‐point geometry metric evaluated at multiple locations along the length of the point, or using multiple geometry metrics evaluated at a single location, better predicts required energy than using a single‐point geometry metric evaluated at a single location. Our results also show that in the case where a single geometry metric evaluated at multiple locations is used LSA provided the most robust prediction models. Finally, our results show that for the case where all geometry metrics evaluated at a single location are used the location that provides the most robust prediction model is dependent on how far the point penetrated the target.
Lewis Acid Mediated Functionalization of Porous Silicon with Substituted Alkenes and Alkynes (1998)

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTLewis Acid Mediated Functionalization of Porous Silicon with Substituted Alkenes and AlkynesJillian M. Buriak and Matthew J. AllenView Author Information Department of Chemistry, 1393 Brown Laboratories Purdue University, West Lafayette, Indiana 47907-1393 Cite this: J. Am. Chem. Soc. 1998, 120, 6, 1339–1340Publication Date (Web):January 30, 1998Publication History Received25 November 1997Revised5 January 1998Published online30 January 1998Published inissue 1 February 1998https://pubs.acs.org/doi/10.1021/ja9740125https://doi.org/10.1021/ja9740125rapid-communicationACS PublicationsCopyright © 1998 American Chemical SocietyRequest reuse permissionsArticle Views2235Altmetric-Citations308LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information SUBJECTS:Alkyls,Hydrocarbons,Hydrosilylation,Porous materials,Silicon Get e-Alerts
Chemical Recycling of Polyolefinic Waste to Light Olefins by Catalytic Pyrolysis (2023)

Abstract Catalytic pyrolysis of post‐industrial and post‐consumer waste is studied in an auger‐type reactor at pilot scale by applying two different zeolites and an amorphous silica‐alumina catalyst in‐situ at 400–550 °C. Contrary to thermal pyrolysis, of polyolefin‐rich waste, high gaseous pyrolysis product yields of approx. 85 wt % are achieved with C 2 –C 4 olefin contents of up to 67 wt %. After deactivation by coke deposition catalyst regeneration is proved feasible for maintaining the gaseous product yield and composition. Waste feedstocks with significant nitrogen and halogen heteroatom content are not suitable for in‐situ catalytic pyrolysis.
The Weight Locus of Control (WLOC) Scale: A Specific Measure for Obesity Research (1982)

The 4-item Weight Locus of Control (WLOC) scale is a specific measure of expectancies for locus of control with respect to personal weight developed for the prediction of behaviors in relation to weight reduction. Normative data on the WLOC scale are presented. Two studies show discriminant validity of the WLOC scale in contrast with other published measures of locus of control. In Study 1, the predicted relative importance of personal attitudes toward losing weight and of social pressures for weight loss in determining intensions to lose weight was achieved for WLOC internals and externals who valued health and/or physical appearance highly. In Study 2, subjects beginning a weight control program who were categorized as internal on the WLOC scale were more likely to complete the program than WLOC externals. Additionally, program completers who were internal on the WLOC scale and who highly valued health or physical appearance were more successful in achieving their initial weight loss goals than program completers with similar values who were WLOC externals.
Probability density function of the intensity for a laser-generated speckle field after propagation through the turbulent atmosphere (1982)

It is shown that, because of the effects of the turbulent atmosphere, the probability density function of the intensity for a monochromatic, fully developed speckle pattern changes from an exponential distribution at low turbulence levels to a K distribution as the turbulence level increases. A physical model that leads to the K distribution is proposed, and the parameters of the K distribution are derived in terms of the strength of turbulence, path length, wavelength, and beam size. The work is then extended to polychromatic and partially developed speckle patterns and to speckle with a coherent background. Good agreement is obtained between the theoretical predictions and experimental measurements.
The Effects of Parceling Unidimensional Scales on Structural Parameter Estimates in Structural Equation Modeling (2006)

Abstract Structural equation modeling allows several methods of estimating the disattenuated association between 2 or more latent variables (i.e., the measurement model). In one common approach, measurement models are specified using item parcels as indicators of latent constructs. Item parcels versus original items are often used as indicators in these contexts to avoid estimation problems or solve issues associated with multivariate normality of the data. One concern associated with the use of item parceling is that no single "correct" approach exists to construct the parcels. Despite the controversy associated with selecting the most appropriate parceling method, less is understood with regard to how these methods influence the structural or path coefficients. By means of simulated and empirical data, this article addresses some commonly used strategies to model disattenuated structural coefficients between latent variables. Results revealed that when a single unidimensional scale is used to represent a latent construct, the use of individual items, item parcels, or an appropriate representation of measurement error through a single observed variable all will result in identical disattenuated structural coefficient estimates. Implications for the future of item parceling are discussed.
Present and Future Alkylation Processes in Refineries (2009)

Isobutane has been alkylated with light (C3−C5) olefins for many years to produce high-quality, clean-burning gasolines. Processes that will significantly reduce operating costs and also produce higher-quality gasolines are proposed. These recommendations are based on recent improved understanding of process fundamentals, including the complicated chemical steps and the physical steps between and near the two or more phases in the reactor. Processes using sulfuric acid can be modified to reduce acid consumption significantly. Several solid catalysts have recently been proposed. All exhibit rapid catalyst deactivation for reasons explained in this article.
Maintenance of Photosynthesis at Low Leaf Water Potential in Wheat (1989)

The interaction of low water potential effects on photosynthesis, and leaf K(+) levels in wheat (Triticum aestivum L.) plants was studied. Plants were grown at three K(+) fertilization levels; 0.2, 2, and 6 millimolar. With well watered plants, 2 millimolar K(+) supported maximal photosynthetic rates; 0.2 millimolar K(+) was inhibitory, and 6 millimolar K(+) was superoptimal (i.e. rates were no greater than at 2 millimolar K(+)). Photosynthesis was monitored at high (930 parts per million) and low (330 parts per million) external CO(2) throughout a series of water stress cycles. Plants subjected to one stress cycle were considered nonacclimated; plants subjected to two successive cycles were considered acclimated during the second cycle. Sensitivity of photosynthesis to declining leaf water potential was affected by K(+) status; 6 millimolar K(+) plants were less sensitive, and 0.2 millimolar K(+) plants were more sensitive than 2 millimolar K(+) plants to declining water potential. This occurred with nonacclimated and acclimated plants at both high and low assay CO(2). It was concluded that the K(+) effect on photosynthesis under stress was not mediated by treatment effects on stomatal resistance. Differences between the K(+) treatments were much less pronounced, however, when photosynthesis of nonacclimated and acclimated plants was plotted at a function of declining relative water content during the stress cycles. These results suggest that K(+) effects on the relationship between relative water content and water potential in stressed plants was primarily responsible for the bulk of the K(+)-protective effect on photosynthesis in stressed plants. In vitro experiments with chloroplasts and protoplasts isolated from 2 millimolar K(+) and 6 millimolar K(+) plants indicated that upon dehydration, K(+) efflux from the chloroplast stroma into the cytoplasm is less pronounced in 6 millimolar K(+) protoplasts.
Bismuth Oxide Nanoparticles by Flame Spray Pyrolysis (2002)

Bismuth oxide nanostructured particles were made via the flame spray pyrolysis (FSP) of bismuth nitrate that had been dissolved in a solution of ethanol/nitric acid or in acetic acid. These self‐sustaining spray flames produced tetragonal β‐Bi 2 O 3 . The use of ethanol/nitric acid solutions resulted in a mixture of hollow, shell‐like, and solid nanograined particles. The particle homogeneity was improved as the content of acetic acid in the precursor solution increased. Solid bismuth oxide nanoparticles were prepared consistent with percolation theory, accounting for the specific volume of the product and the precursor. Using pure acetic acid as the solvent, the effect of FSP variables on spray flame and product powder characteristics was investigated. The specific surface area of the Bi 2 O 3 particles could be controlled over a range of 20–80 m 2 /g by the liquid feed and oxygen gas flow rates for powder production rates of 6–46 g/h.
The Posteromedial Knee Arthroscopy Portal: A Cadaveric Study Defining a Safety Zone for Portal Placement (2011)

We believe that 2 portals would be beneficial when performing complex arthroscopic procedures involving the PM compartment of the knee.
AZTR: Aerial Video Action Recognition with Auto Zoom and Temporal Reasoning (2023)

We propose a novel approach for aerial video action recognition. Our method is designed for videos captured using UAVs and can run on edge or mobile devices. We present a learning-based approach that uses customized auto zoom to automatically identify the human target and scale it appropriately. This makes it easier to extract the key features and reduces the computational overhead. We also present an efficient temporal reasoning algorithm to capture the action information along the spatial and temporal domains within a controllable computational cost. Our approach has been implemented and evaluated both on the desktop with high-end GPUs and on the low power Robotics RB5 Platform for robots and drones. In practice, we achieve 6.1-7.4% improvement over SOTA in Top-1 accuracy on the RoCoG-v2 dataset, 8.3-10.4% improvement on the UAV-Human dataset and 3.2% improvement on the Drone Action dataset.
Phylogenomic characterisation of a novel corynebacterial species pathogenic to animals (2020)

The genus Corynebacterium includes species of biotechnological, medical and veterinary importance. An atypical C. ulcerans strain, W25, was recently isolated from a case of necrotizing lymphadenitis in a wild boar. In this study, we have analysed the genome sequence of this strain and compared the phenotypic and virulence properties with other corynebacterial pathogens. Phylogenomic analyses revealed that strain W25 belongs to a novel species along with PO100/5 and KL1196. The latter strains were isolated from a pig and a roe deer, respectively; hence, this species appears to be associated to animals. The isolate W25 is likely a non-toxigenic tox gene bearing strain and may have compromised abilities to adhere to pharyngeal and laryngeal epithelial cells due to potential loss of the gene functions in spaBC and spaDEF pilus gene clusters. A number of corynebacterial virulence genes are present including pld encoding phospholipase D. Therefore, this strain may be able to cause severe invasive infections in animals and zoonotic infections in humans.