gebhart/patrepeval huggingface dataset:
Public key exchange scheme that is addressable (PKA) (2017)

The objective of the PKA encryption scheme is to complement, or replace, existing Public Key Infrastructures (PKI) [1]. In this scheme, the initialization step is based on the secure exchange of addressable cryptographic tables between the communicating parties. These tables are generated either with random numbers, or with arrays of addressable Physical Unclonable Function (PUFs). The subsequent communications between the parties can therefore occurs over untrusted channels, by exchanging dynamically generated public keys. Private keys are, generated independently with all communicating parties using their cryptographic tables, and the shared public keys. The private keys are combined with methods such as the Advanced Encryption Standard (AES) to encrypt and decrypt the communication between users. The generation of private keys is done without mathematical computations that are potentially vulnerable to quantum computers using algorithms such as the one developed by Shor [2]. PKA is fast and requires approximately 800 CPU clock cycles. We implemented, and tested the PKA dynamic key exchange scheme in legacy systems to secure PC-to-PC communication, and PC to smart card communication with AES.
Morphological study of microwave-assisted facile synthesis of gold nanoflowers/nanoparticles in aqueous medium and their catalytic application for reduction of p-nitrophenol to p-aminophenol (2015)

The present work reports a facile synthesis of gold (Au) nanoflowers and nanoparticles with various morphologies using different microwave powers in watts in DMSO.
Photon-induced charge transfer and surface emission (1974)

Experimental measurements have been made of photon-induced charge transfer between plane-parallel electrodes. X-rays from a pulsed X-ray source were directed at near-normal incidence onto plane-parallel electrodes, and the current which flowed between the electrodes during the X-ray pulse was measured. Quantities obtained include bulk charge transfer in several dielectric materials; forward and reverse electron emission from Al, Cu, and Au surfaces; and secondary electron emission coefficients for these metals and selected dielectrics. Measured values for charge transfer and surface emission are compared with calculations.
Search for the standard model Higgs boson decaying into two photons in pp collisions at s=7 TeV (2012)

A search for a Higgs boson decaying into two photons is described. The analysis is performed using a dataset recorded by the CMS experiment at the LHC from pp collisions at a center-of-mass energy of 7 TeV, which corresponds to an integrated luminosity of 4.8 fb−1. Limits are set on the cross section of the standard model Higgs boson decaying to two photons. The expected exclusion limit at 95% confidence level is between 1.4 and 2.4 times the standard model cross section in the mass range between 110 and 150 GeV. The analysis of the data excludes, at 95% confidence level, the standard model Higgs boson decaying into two photons in the mass range 128 to 132 GeV. The largest excess of events above the expected standard model background is observed for a Higgs boson mass hypothesis of 124 GeV with a local significance of 3.1σ. The global significance of observing an excess with a local significance ⩾3.1σ anywhere in the search range 110–150 GeV is estimated to be 1.8σ. More data are required to ascertain the origin of this excess.
Wind-up AUVs: Combined energy storage and attitude control using control moment gyros (2007)

This research develops a system to combine energy storage and attitude control functions in control moment gyros (CMGs) for application onboard autonomous underwater vehicles (AUVs). This is proposed as part of a hybrid energy storage system to allow AUVs to perform their missions with no chemical batteries at all. In previous works, the authors developed an attitude control scheme based on the gyroscopic torques developed by a cluster of four CMGs, which was implemented onboard the test-bed AUV 'IKURA', and successfully demonstrated full three-dimensional attitude control capabilities. This paper extends the control scheme to overcome interactions between the kinetic energy and angular momentum stored in the CMG flywheels, to allow the energy mechanically stored in the rotation of the flywheels to power the electronics of the robot, while simultaneously controlling its three-dimensional attitude. The control scheme is implemented on a four unit CMG pyramid developed for IKURA and series of land experiments are performed to demonstrate simultaneous energy transfer and attitude control.
Fuzzy logic in case-based reasoning (2002)

This paper presents a fuzzy logic approach to address the indexing problems in case-based reasoning paradigm. The relevance of representing case indices using fuzzy sets and a scheme for rating and ranking of candidate cases using fuzzy aggregation operators are discussed. The authors also suggest employing case-based reasoning for learning in fuzzy systems. The proposed schemes are exemplified in the content of a hybrid reasoning system for reactive navigation of autonomous underwater vehicles.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Inhibition of histone deacetylase (HDAC) 6 sensitizes human leukemia and breast cancer cells to antagonists of heat shock protein (hsp) 90 and/or bortezomib (BZ) (2006)

13039 Background: HDAC6 is a cytosolic α-tubulin deacetylase, which shuttles misfolded polyubiquitylated proteins into aggresomes. Our studies demonstrated that the hydroxamic acid (HA) analogue pan-HDAC inhibitors (HDIs), e.g., LAQ824 and LBH589, induce α-tubulin and hsp90 acetylation, thereby inhibiting ATP-binding and chaperone function of hsp90. This promotes the polyubiquitylation and degradation of the pro-growth and pro-survival hsp90 client proteins, e.g., Bcr-Abl, mutant FLT-3, c-Raf and AKT in leukemia and Her-2 in breast cancer cells. Methods: Human CML K562 and breast cancer SKBR-3 and BT-474 cells were exposed to LAQ824 (100 nM) or LBH589 (20 to 50 nM) and/or 17-AAG (1 to 5 μM) and/or BZ (5 to 100 nM). K562 and BT-574 cells were also transfected with siRNA to HDAC6. Immunoprecipitation and/or immunoblot analysis were performed to determine the expression or binding of HDAC6 with hsp90, and of hsp90 acetylation and binding with its co-chaperones and client proteins. Immunofluorescent microscopy was utilized to estimate aggresome formation. Cellular cytotoxicity was determined by % inhibition of colony growth. Results: HDAC6 knockdown by its siRNA induced the acetylation of hsp90 and α-tubulin but not of the co-chaperones p23 and hsp40. HDAC6 binds to hsp90. Hsp90 acetylation increased its binding to biotinylated-geldanamycin (GM) and its analogue 17-AAG. Depletion of HDAC6 levels (∼70%) or its activity by treatment with HA-HDI also inhibited the binding of hsp90 to ATP, p23 and hsp90 client proteins, which was augmented by co-treatment with 17-AAG. Knockdown of HDAC6 sensitized the cells to loss of clonogenic survival induced by HA-HDI and/or BZ and/or 17-AAG. Depletion of HDAC6 led to attenuation of Her-2 levels and loss of survival of Her-2 amplified SKBR-3 and BT-474 cells. Co-localization of HDAC6 and polyubiquitylated proteins into aggresomes was enhanced by co-treatment with BZ and/or 17-AAG. This was inhibited by depletion of HDAC6 activity. Conclusions: These findings support the in vivo testing of HDAC6 inhibitors, which through inhibition of hsp90 and aggresome formation sensitizes cancer cells to 17-AAG and/or BZ induced cellular stress due to misfolded and polyubiquitylated proteins. [Table: see text]
Separation and partial purification of the protein hormones from human pituitary glands (1966)

A method has been developed for separation and partial purification of four protein hormones from acetone-dried human pituitary glands. The major portion of growth hormone, follicle-stimulating hormone, luteinizing hormone and thyroid-stimulating hormone activities are each obtained in a separate fraction. Although the yields of the individual hormones are similar to those obtained by other investigators, the present procedure is simpler and a cleaner separation of the hormones has been achieved. Methods for further purification of each fraction are indicated including preparation of luteinizing hormone of very high potency (equivalent to 5.3mg. of standard NIH-LH-S3/mg.).
Numerical simulation of viscoelastic flow in two‐dimensional L‐shaped channels (1992)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation S. Chono, Y. Iemoto; Numerical simulation of viscoelastic flow in two‐dimensional L‐shaped channels. J. Rheol. 1 February 1992; 36 (2): 335–356. https://doi.org/10.1122/1.550369 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentThe Society of RheologyJournal of Rheology Search Advanced Search |Citation Search
IMPACT OF PHYSICO-CHEMICAL CONDITIONS ON SEASONAL FLUCTUATION OF PLANKTON DIVERSITY IN CERTAIN WETLANDS OF TIPTUR TALUK, TUMKUR DIST, KARNATAKA, INDIA (2013)

The increasing human activities in addition to natural causes affect on the wetland ecosystem. Amongst the various water bodies, wetlands also play an important role in the biodiversity of this region. The present study documents the distribution of phytoplankton, zooplankton and their correlation with physico-chemical conditions of water of four wetlands of Tiptur Taluk, Tumkur District, Karnataka, during the period of two year from June 2010 to May 2012. All the selected wetlands are surrounded by coconut garden in all the sides and having a direct connection with the Hemavathi river channel. The result revealed that there are 114 species of phytoplankton and 32 species of zooplankton were recorded from the wetlands. Among these, Chlorophyceae was the most dominant class in phytoplankton (62) (54.38 %), followed by Bacillariophyceae (27) (23.68 %), Cyanophyceae (17) (14.91%) and Euglenophyceae (8) (7.01%), while zooplankton, Rotifers constitutes (14) (43.75%), followed by Protozoa (4) (12.50%), Copepod (6) (18.75 %) and Cladocera (8) (25.00 %). In all these wetlands, the diversity of plankton is more in pre monsoon compared to post monsoon and monsoon season. The results of the present investigations are compared with literature values and investigation reveals that there is a fluctuation in the physico-chemical characters of the water. This will be due to entry of rain water and also due to change in the temperature, PH, turbidity, CO2, chloride, transparency, TDS, alkalinity and dissolved oxygen etc.
Pathophysiology of gastrointestinal mucosal permeability (1990)

The intestinal mucosa is composed of multiple barriers to the lumen-to-blood transport of solutes, including the unstirred water and mucous layers, the apical and basolateral cell membranes of the epithelial cell, the paracellular junctions, the interstitial matrix, and the capillary and lymphatic endothelia. The epithelial barrier appears effectively to restrict the movement of solutes with a radius as low as 3 A, yet it also permits limited permeation by molecules as large as albumin (36 A radius). There is evidence to suggest that the restrictive properties of the gastrointestinal mucosa are significantly altered under various physiological and pathological conditions, and measurement of plasma (or luminal) clearances of water-soluble molecules has proved to be a popular method for studying intestinal permeability. The aim of this review is to discuss the concept of the plasma clearance method, methodological aspects of the technique, factors that influence plasma-to-lumen clearance measurements (e.g. solute size, blood flow, and permeability of the epithelial cell barrier), and advantages and disadvantages of the clearance method. Finally, application of the clearance technique to the study of ischaemia/reperfusion-, ethanol-, and FMLP-induced mucosal injury will be described.
Global Sensitivity Analysis for Systems with Independent and/or Correlated Inputs (2010)

A new unified global sensitivity analysis framework is introduced for systems whose input probability distribution can be independent and/or correlated. For correlated inputs, three sensitivity indices are defined to fully describe the total, structural (reflecting the system structure) and correlative (reflecting the correlated input probability distribution) contributions for an input or a subset of inputs. The magnitudes of all three indices need to be considered in order to quantitatively determine the relative importance of the inputs. For independent inputs, these indices reduce to a single index consistent with previous variance-based methods. This analysis is especially useful for the treatment of laboratory and field data.
ChemInform Abstract: Synthesis, Structure, and Pressure‐Induced Polymerization of Li3Fe(CN)6 Accompanied with Enhanced Conductivity. (2016)

Abstract Anhydrous Li 3 Fe(CN) 6 is obtained from samples prepared from freshly precipitated Ag 3 Fe(CN) 6 which is dispersed in a cold LiCl (≈0 °C) solution, filtrated, and freeze dried to arrive at Li 3 Fe(CN) 6 ·2H 2 O crystals, the latter being heated in a protective atmosphere (140—150 °C, 20—30 min).
Characteristics of Deposits Formed in Cyclones in Commercial RFCC Reactor (2012)

Deposits in a commercial RFCC reactor were characterized using an analytical approach. Further characterization of deposits on the reactor cyclone, which are one of the primary problems causing abnormal shut-down of RFCC, was carried out in order to understand the formation mechanism of the deposit. The deposits in the reactor consist of hydrocarbon and inorganic matter, compositions of which are well matched with the RFCC catalyst. In a longitudinal analysis of a sample reflecting age, H/C atomic ratio decreases slightly with increased aging time in inner regions and has high value at the surface region, which is a relatively fresh deposit. The particles, surrounded by carbonaceous matter, and amorphous carbonaceous matter are observed through surface micrographs. Aromatic compounds and nano- and microcatalyst fines contribute to the formation of deposits. Micro- and nanostructure of the deposit is amorphous or very weakly ordered. The H/C atomic ratios of samples with different ages, over 90 days, do not change with aging and are matched with a variation of feed API. Possible mechanisms for the deposit formation and its reducing methods are proposed.
Absorption, Distribution, Metabolism and Excretion of Tattoo Colorants and Ingredients in Mouse and Man: The Known and the Unknown (2015)

During tattooing, high amounts of tattoo colorants, which usually contain various substances, are injected into skin. The major ingredient in tattoo colorants is the coloring component, which can be assigned to two different groups. First, amorphous carbon particles (Carbon Black) are found almost exclusively in black tattoos. Second, tattooists use azo and polycyclic pigments to create nearly all colors of the visible spectrum. Due to their different chemistries, those tattoo colorants usually contain various compounds, such as by-products and impurities. Professional tattooists inject the colorant mixture into skin using the solid needles of tattoo machines, and studies have shown that about 2.5 mg of tattoo pigment is injected to stain about 1 cm(2) of skin. Animal experiments revealed that about one-third of that amount disappeared from skin within weeks after tattooing, and this finding was confirmed by pigment extraction from long-existing tattoos. It is assumed that some of the tattoo colorants stay in the skin because the pigment particles are insoluble and too large to be transported. The other part of the tattoo colorants shows up at least in the lymph nodes located next to the tattoo. To date, no investigations determining whether and to what extent tattoo colorants can be found in any other organs of the human body have been performed. Thus, tattooing of colorants into skin entails a complex reaction of the skin that triggers the immune system and launches manifold transport processes, which might pose additional health risks not only to skin but also to other organs of humans.
An Organ-Like Titanium Carbide Material (MXene) with Multilayer Structure Encapsulating Hemoglobin for a Mediator-Free Biosensor (2014)

A novel organ-like MXene-Ti3C2 nanomaterial was successfully prepared by etching Al from Ti3AlC2 in HF at room temperature and then used to immobilise hemoglobin (Hb) to fabricate a mediator-free biosensor with an oxidized surface. MXene-Ti3C2 and its morphology were well characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM), and the physical and electrochemical properties of as-obtained samples were studied by UV-vis diffuse reflectance spectra (DRS) and the electrochemical workstation. Spectroscopic and electrochemical results confirmed that MXene-Ti3C2 exhibited an excellent enzyme immobilization ability with biocompatibility for redox protein, displaying good protein bioactivity and stability. Due to the special structure and properties of MXene-Ti3C2, the direct electron transfer of Hb is facilitated and the prepared biosensors displayed good performance for the detection of H2O2 with a wide linear range of 0.1–260 μM for H2O2, as well as an extremely low detection limit of 20 nM (based on a signal-to-noise ratio of 3) for H2O2. The immobilization of proteins onto the surface of MXene-Ti3C2 is shown to be an efficient method for the development of a new class of sensitive, stable, and promising electrochemical biosensors.
Characterization of KRAS Rearrangements in Metastatic Prostate Cancer (2011)

This is the first description of an oncogenic gene fusion of KRAS, one of the most studied proto-oncogenes. KRAS rearrangement may represent the driving mutation in a rare subset of metastatic prostate cancers, emphasizing the importance of RAS-RAF-MAPK signaling in this disease.
Maximum-lifetime routing algorithms for networks with omnidirectional and directional antennas (2005)

A major problem in wireless networks is how to route either broadcast, unicast or multicast traffic so as to maximize the lifetime, i.e., the time until the battery of a transmitting node drains out. Focusing on the fundamental single-session problem, our solution approach is based on the employment of multi-topology routing schemes. Such a scheme consists of a set of routing topologies, which are employed sequentially, for some prescribed duration times.First, we consider the standard wireless environment of multiple recipients, which correspond to omnidirectional antennas. For the cases of either single-topology schemes or unicast sessions, we establish optimal solutions of polynomial complexity. For the general (multi-topology) cases of broadcast and multicast, which are NP-hard, we derive a novel heuristic scheme, and demonstrate its efficiency by way of simulations.We then consider an alternative, single-recipient wireless environment, which corresponds to the important case of directional antennas. While the employment of directional antennas is known to posses significant advantages over the traditional omnidirectional transmission, the problem of lifetime maximization under this environment has received only limited attention.We demonstrate that the change from the traditional (multiple-recipients) environment to the single-recipient environment is of major significance in terms of computational complexity and produces an interesting twist of difficulty: namely, for the standard model, the single-topology broadcast problem is computationally solvable and the multi-topology problem is NP-hard, while the opposite holds for the single-recipient model. Finally, we discuss the extension of our results to the case of multiple sessions.
ChemInform Abstract: TRIAZINE UND VERWANDTE VERBINDUNGEN 9. MITT. POTENTIELLE IRREVERSIBLE DIHYDROFOLAT‐REDUKTASE‐INHIBITOREN, 2,4‐DIAMINO‐1,3,5‐TRIAZINE MIT MASKIERTER KOVALENTER CHARAKTERISTISCHER GRUPPE (1972)

Abstract Die Diazotierung der o‐Amino‐benzamide (I) (dargestellt durch Reaktion von o‐Nitro‐benzoylchlorid mit entsprechenden Anilinen und Sn‐chlorid‐Reduktion der entstehenden o‐Nitro‐benzamide) in 2n HCl bei 0°C liefert die Benzotriazinone (11 ) (Ausbeute öU ozw.
Throughput analysis of random storage systems operated under the closest eligible location rule (2017)

We study the performance of a storage and retrieval system executing single-command cycles under the closest eligible location rule to serve a random storage. For each arriving storage or retrieval request, the closest eligible location rule selects a storage location that incurs a minimum cycle time. The performance of the system is analyzed in terms of the expected maximum system throughput, which is obtained from the reciprocal expected cycle time. Assuming that the arrivals of storage and retrieval requests follow independent Poisson processes, we propose a mathematical model based on Gordon-Newell networks to develop closed-form expressions for the expected cycle time. In a numerical experiment, we investigate characteristic curves of the expected cycle time and the obsolescence of inventory for varying number of stock keeping units. Comparing our model to alternative approaches shows that the latter tend to significantly underestimate the expected maximum system throughput under the closest eligible location rule.
Deep Learning for Low-Field to High-Field MR: Image Quality Transfer with Probabilistic Decimation Simulator (2019)

MR images scanned at low magnetic field ($&lt;1$T) have lower resolution in the slice direction and lower contrast, due to a relatively small signal-to-noise ratio (SNR) than those from high field (typically 1.5T and 3T). We adapt the recent idea of Image Quality Transfer (IQT) to enhance very low-field structural images aiming to estimate the resolution, spatial coverage, and contrast of high-field images. Analogous to many learning-based image enhancement techniques, IQT generates training data from high-field scans alone by simulating low-field images through a pre-defined decimation model. However, the ground truth decimation model is not well-known in practice, and lack of its specification can bias the trained model, aggravating performance on the real low-field scans. In this paper we propose a probabilistic decimation simulator to improve robustness of model training. It is used to generate and augment various low-field images whose parameters are random variables and sampled from an empirical distribution related to tissue-specific SNR on a 0.36T scanner. The probabilistic decimation simulator is model-agnostic, that is, it can be used with any super-resolution networks. Furthermore we propose a variant of U-Net architecture to improve its learning performance. We show promising qualitative results from clinical low-field images confirming the strong efficacy of IQT in an important new application area: epilepsy diagnosis in sub-Saharan Africa where only low-field scanners are normally available.