gebhart/patrepeval huggingface dataset:
Agent-assisted tagging aimed at folkonomy-based information retrieval (2011)

The wide diffusion of community tagging sites and related folksonomies has made the knowledge discovery and retrieval still much more urgent topic. If tagging systems allow users to add freely keywords to web resources, clicking on a tag has the side effect of a tag-based query, since enables the users to explore related content. The collective knowledge expressed though user-annotated data has a big potential, but needs to be filtered in a digest form so that the search result better reflects the users' preferences and actual aims. Starting from these considerations, our work presents an agent-based approach for a scalable semi-automatic generation of annotation tags, personalized on each user's preferences and tastes. Primary is the role of agents which assist users in the tagging activities as well as the retrieval of resources related to their interest. A user-friendly interface proposes an integrated one-shot view for interacting with a tagging system.
Diabetes mellitus and Degos disease. (2008)

We present the case of a 75-year-old man who was diagnosed with Degos disease (DD) in the context of type 2 diabetes mellitus. The cutaneous lesions of DD were located at the trunk as well as in the proximal parts of the arms. He presented with positive laboratory test for lupic anticoagulant, but other rheumatologic parameters of interest were within normal limits. The skin biopsy corroborated the diagnosis of DD, and also showed morphologic features traditionally associated to hyaline diabetic microangiopathy. Since the latter has recently been atributted to C5b-9 deposit in the vessel wall, we discuss if both conditions are pathogentically connected or just coincidental (Fig. 3, Ref. 32). Full Text (Free, PDF) www.bmj.sk.
Biochemical and immunochemical studies of proteolytic fragments of exotoxin A from <i>Pseudomonas aeruginosa</i> (1990)

Limited proteolysis of Pseudomonas aeruginosa exotoxin A by four proteases (chymotrypsin, Staphylococcal serine proteinase, pepsin A and subtilisin) resulted in the formation of polypeptides having a molecular mass of approximately 25 kDa. They possessed both enzymatic activity and residual antigenicity. Their N-terminal sequence analysis showed that the different proteases cleaved exotoxin A in a very restricted area within domain Ib (amino acids 365-404). As a result, the polypeptides contained a large portion (13-34 amino acids) of domain Ib linked to the adjacent C-terminal domain III (amino acids 405-613). The major fragment derived from subtilisin cleavage, at a final yield of 35% (S-fragment; residues 392-613; 24201 Da; pI 4.7) possessed the same level of ADP-ribosyltransferase activity as uncleaved exotoxin A (by mass), and a 37-fold higher NAD-glycohydrolase activity. Polyclonal antibodies from rabbits against exotoxin A completely inhibited the ADP-ribosyltransferase activity of both exotoxin A and the S-fragment, but not the NAD-glycohydrolase activity of the S-fragment. Antibodies against the S-fragment neutralized the ADP-ribosyltransferase activity of exotoxin A. These data determine the primary proteolytic cleavage site of exotoxin A, suggest that some residues in the amino acid sequence 392-404 of exotoxin A seem to have a role in binding or positioning elongation factor 2 (EF-2) and show that antibodies recognize the EF-2-binding site but not the NAD(+)-binding site.
Nonlinear optical interfaces: Switching behavior (1984)

We report the results of a study of the switching behavior of the interface between an ordinary dielectric and a nonlinear dielectric material with an intensity-dependent index of refraction. The non-linear dielectric used for these experiments consisted of a liquid suspension of dielectric particles. Because this medium has a very large effective nonlinearity, it was possible to perform these experiments with the CW output of an argon ion laser. Our experimental results are in excellent agreement with the predictions of numerical calculations based on a two-dimensional Gaussian input beam. We also report the observation of an unstable reflectivity state with a lifetime <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\sim 10^{3}</tex> times the response time of the nonlinear medium.
A Hybrid Approach to Protect Palmprint Templates (2014)

Biometric template protection is indispensable to protect personal privacy in large-scale deployment of biometric systems. Accuracy, changeability, and security are three critical requirements for template protection algorithms. However, existing template protection algorithms cannot satisfy all these requirements well. In this paper, we propose a hybrid approach that combines random projection and fuzzy vault to improve the performances at these three points. Heterogeneous space is designed for combining random projection and fuzzy vault properly in the hybrid scheme. New chaff point generation method is also proposed to enhance the security of the heterogeneous vault. Theoretical analyses of proposed hybrid approach in terms of accuracy, changeability, and security are given in this paper. Palmprint database based experimental results well support the theoretical analyses and demonstrate the effectiveness of proposed hybrid approach.
Providing flow based performance guarantees for buffered crossbar switches (2008)

Buffered crossbar switches are a special type of combined input-output queued switches with each crosspoint of the crossbar having small on-chip buffers. The introduction of crosspoint buffers greatly simplifies the scheduling process of buffered crossbar switches, and furthermore enables buffered crossbar switches with speedup of two to easily provide port based performance guarantees. However, recent research results have indicated that, in order to provide flow based performance guarantees, buffered crossbar switches have to either increase the speedup of the crossbar to three or greatly increase the total number of crosspoint buffers, both adding significant hardware complexity. In this paper, we present scheduling algorithms for buffered crossbar switches to achieve flow based performance guarantees with speedup of two and with only one or two buffers at each crosspoint. When there is no crosspoint blocking in a specific time slot, only the simple and distributed input scheduling and output scheduling are necessary. Otherwise, the special urgent matching is introduced to guarantee the on-time delivery of crosspoint blocked cells. With the proposed algorithms, buffered crossbar switches can provide flow based performance guarantees by emulating push-in-first-out output queued switches, and we use the counting method to formally prove the perfect emulation. For the special urgent matching, we present sequential and parallel matching algorithms. Both algorithms converge with N iterations in the worst case, and the latter needs less iterations in the average case. Finally, we discuss an alternative backup-buffer implementation scheme to the bypass path, and compare our algorithms with existing algorithms in the literature.
248. N-oxides and related compounds. Part X. The hydrogenation of some pyridine 1-oxides (1958)

A. R. Katritzky and A. M. Monro, J. Chem. Soc., 1958, 1263 DOI: 10.1039/JR9580001263
BACKBORD (1988)

Several previous systems have utilized a retrieval by reformulation paradigm for query-based retrieval from databases. These systems were not designed to support other applications, such as knowledge base browsing, and lacked provisions for acting upon retrieved data. We describe a multi-purpose browsing interface that extends the retrieval by reformulation paradigm by (1) providing a set of tools for knowledge base browsing and event tracking, (2) supporting a general mechanism that enables application-builders to specify actions applicable to retrieved data, and (3) applying specification by reformulation, an interface paradigm more general than retrieval by reformulation, to actions that involve forms filling. This extends the paradigm's benefits beyond database users to both developers and users of a wide range of knowledge-based systems.
Distributed, dynamic, and efficient testing of large scale multiple processor systems (2002)

The authors propose a distributed test algorithm for multiple processor systems where a central fault-free entity such as a host computer does not exist for any purpose such as control, fault-diagnosis, and system reconfiguration. The proposed algorithm is dynamic, i.e. testing assignments are not fixed ahead of time but rather are made as processors or interprocessor links fail. This dynamic property of the algorithm improves system performance by reducing the number of testers assigned to every processor while allowing the existence of multiple faulty processors and interprocessor communication links at every round of testing. Simulation results verify the effectiveness of the given approach.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Mileage-Based Road User Charges (2016)

This report examines mileage-based user charges as an possible source of highway funding. Federal highway and public transportation programs are funded mainly by taxes on motor fuel that flow into the Highway Trust Fund (HTF). The tax rates, set on a per-gallon basis, have not been raised since 1993, and motor fuel tax receipts have been insufficient to support the transportation programs authorized by Congress since FY2008.
Phosphorus cycling and algal-bacterial competition in Sandsfjord, western Norway (1993)

Microbial phosphorus-cycling, with particular emphasis on algal/bacterial competition, was studied in depth profiles through the halocline separating a brackish top layer, rich in nitrate and poor in phosphate, from the underlying coastal water, poor in both nitrate and phosphate, in the Sandsfjord area, western Norway. At 2 stations along the axis of natural freshwater outflow, physiological P-deficiency of algae and bacteria in the brackish layer was inferred from rapid luxury consumption of added PO: -by organisms in size fractions > l pm and 1-0.2 pm, respectively. In a branch of the fjord without natural freshwater outlets, luxury consumption in the brackish layer was less, and without a clear difference between the 2 water layers. High luxury consumption coincided with short (< 30 min) turnover times for ~0 2 -a n d strong bacterial dominance of 32P0,"--uptake, suggesting bacterial superiority as competitors during P-limiting conditions. Estimation of P-specific maximum uptake rate and affinity for PO:--uptake from isotope dilution experiments indicated bacterial superiority at low and algal superiority at high concentrations. Although most of the 32P hydrolyzed from added y -~T 3 2 P was initially liberated as free 32P04, partitioning of incorporated 32P between size fractions > l pm and 1-0.2 pm was found to depend on whether label was added as y -~T " P or as 3 2 ~0 , , -, indicating that coupling of uptake to hydrolysis by cell-bound enzymes could modify the outcome of algalbacterial phosphorus competition. Disappearance rate of "P from the 1-0.2 pm size fraction following initial labeling and a subsequent cold chase with PO:-, was used to estimate the flow-rate of phosphorus through the microbial food web. Combined with measured kinetic constants for PO: -uptake. alkaline phosphatases and 5'nucleotidases, a coherent flow-scheme could only be obtained assuming very low (< 1 nmol I-') concentrations of PO;'-and nucleotides. Chemically measured concentrations of dissolved organic phosphorus (DOP) more than 2 orders of magnitude above the estimated nucleotide level and with an estimated turnover time of ca 500 h, are consistent with the view that this large Preservoir consists mainly of slowly hydrolyzable polymers.
Structural and Morphological Evolution of Lead Dendrites during Electrochemical Migration (2013)

The electrochemical deposition and dissolution of lead on gold electrodes immersed in an aqueous solution of lead nitrate were studied in situ using a biasing liquid cell by transmission electron microscopy (TEM). We investigate in real time the growth mechanisms of lead dendrites as deposited on the electrodes under an applied potential. TEM images reveal that lead dendrites are developed by the fast protrusion of lead branches in the electrolyte and tip splitting. And, the fast growing tip of the dendritic branch is composed of polycrystalline nanograins and it develops into a single crystalline branch eventually. This study demonstrated unique electrochemical growth of single crystal dendrites through nucleation, aggregation, alignment and attachment of randomly oriented small grains. Additionally, we found the lead concentration in the electrolyte drastically influences the morphology of dendritic formation.
Construction of block orthogonal STBCs and reducing their sphere decoding complexity (2013)

Construction of high rate Space Time Block Codes (STBCs) with low decoding complexity has been studied widely using techniques such as sphere decoding and non Maximum-Likelihood (ML) decoders such as the QR decomposition decoder with M paths (QRDM decoder). Recently Ren et al., presented a new class of STBCs known as the block orthogonal STBCs (BOSTBCs), which could be exploited by the QRDM decoders to achieve significant decoding complexity reduction without performance loss. The block orthogonal property of the codes constructed was however only shown via simulations. In this paper, we give analytical proofs for the block orthogonal structure of various existing codes in literature including the codes constructed in the paper by Ren et al. We show that codes formed as the sum of Clifford Unitary Weight Designs (CUWDs) or Coordinate Interleaved Orthogonal Designs (CIODs) exhibit block orthogonal structure. We also provide new construction of block orthogonal codes from Cyclic Division Algebras (CDAs) and Crossed-Product Algebras (CPAs). In addition, we show how the block orthogonal property of the STBCs can be exploited to reduce the decoding complexity of a sphere decoder using a depth first search approach. Simulation results of the decoding complexity show a 30% reduction in the number of floating point operations (FLOPS) of BOSTBCs as compared to STBCs without the block orthogonal structure.
Towards A Dynamic QoS-aware Over-The-Top Video Streaming in LTE (2013)

We present a study of traffic behavior of two popular over-the-top (OTT) video streaming services (YouTube and Netflix). Our analysis is conducted on different mobile devices (iOS and Android) over various wireless networks (Wi-Fi, 3G and LTE) under dynamic network conditions. Our measurements show that the video players frequently discard a large amount of video content although it is successfully delivered to a client. We first investigate the root cause of this unwanted behavior. Then, we propose a Quality-of-Service (QoS)-aware video streaming architecture in Long Term Evolution (LTE) networks to reduce the waste of network resource and improve user experience. The architecture includes a selective packet discarding mechanism, which can be placed in packet data network gateways (P-GW). In addition, our QoS-aware rules assist video players in selecting an appropriate resolution under a fluctuating channel condition. We monitor network condition and configure QoS parameters to control availability of the maximum bandwidth in real time. In our experimental setup, the proposed platform shows up to 20.58% improvement in saving downlink bandwidth and improves user experience by reducing buffer underflow period to an average of 32 seconds.
Ventricular Evoked Response as Clinical Marker for Hemodynamic Changes in Dilative Cardiomyopathy (2004)

The potential value of ventricular evoked response (VER) evaluation by implantable pacemakers as clinical marker for disease induced hemodynamic changes in the heart, has so far not been explicitly evaluated. We conducted a study to evaluate the reproducibility of the R spike and T wave measurements (R(VER) and T(VER)) under controlled clinical conditions and examine the correlation between VER parameters and standard echocardiographic measurements in the left ventricle. Additionally, the utility of the VER as a marker for NYHA classification and the presence of cardiomyopathy was investigated. The Physios CTM 01 pacemaker capable of recording authentic VER signal morphology, was used with low polarization fractal coated pacing leads to obtain high-fidelity VER recordings in 26 patients with conventional pacing indications (mean age: 69.1 +/- 11.8 years; 20 men). Three patients suffered from dilative cardiomyopathy (DCM), 14 from hyperthropic nonobstructive cardiomyopathy (HNCM), and nine had no myopathy but suffered from coronary artery disease (CAD). Five patients were in NYHA Class IV, 19 in Class III, and two in Class II. Mean R(VER) and T(VER) amplitudes were calculated from one-minute VER recordings. Standard echocardiography parameters were determined during this recording. Two follow-ups at a mean distance of 11.3 +/- 5.7 month were performed. The reproducibility of R(VER) or T(VER) (correlation factors: 0.992 and 0.981, respectively) was superior to the reproducibility of any echocardiographic parameter (correlation factors 0.404-0.943). There was no strong correlation between VER and any echo parameter. Both R(VER) and T(VER) were significantly reduced in NYHA Class IV patients (P < 0.05), and nearly significantly reduced in DCM versus other patients (P = 0.05-0.09). HNCM made no difference to CAD. The investigation shows that analysis of VER parameters bears a promising potential for dynamic monitoring of diseases affecting the hemodynamics, and of therapeutic effects, by means of regular, nonburdening pacemaker follow-up examinations.
Computer modeling and experimental validation on effect of bipolar electrode spacing on near field and far field electrogram amplitudes (2003)

Far field R wave (FF) oversensing is a common problem associated with dual chamber devices, which may result in delivery of inappropriate therapies. Optimizing bipolar electrode design to increase ratios of near field P wave (NF) to FF and thereby rejecting FF signals is one method of resolving this problem. The goal of this study is to evaluate the effect of bipolar interelectrode spacing (IE) associated with lead orientation in a computer model and to validate the results with a well-controlled study in eight canines. Both model and animal results show that the NF/FF ratios increased with smaller IE. Overall, the amplitude of NF was attenuated with smaller IE. However, the FF amplitude exhibited a larger attenuation resulting in an increased NF/FF.
It’s a tough balancing act (2009)

The delivery of adjuvant chemotherapy on time and at full dose is important, since dose reductions and delays can affect survival rates (Bonadonna et al 1995).
A small listener for heterogeneous mobile devices: a service enabler with a uniform Web object view (2005)

We recently developed "system on mobile devices" (SyD) middleware for rapidly developing and deploying collaborative distributed applications over a collection of autonomous Web objects and data-stores, independent of the underlying device, data, or network. SyDListener is a key component of SyD middleware. SyDListener provides a set of interfaces and classes that allows distributed SyD-based application components to communicate seamlessly in mobile environments. SyDListener provides a uniform object view of the underlying server application and enables client applications to remotely invoke those methods using XML messages. SyDListener is implemented as a multi-threaded wrapper with simple persistence management and asynchronous invocation functionality for J2ME mobile information device profile (MIDP) on connected limited device configuration (CLDL) devices. We discuss the functionality, architecture, implementation, and performance of SyDListener. We believe it is the first comprehensive working prototype of its kind for Java-enabled handhelds with a small footprint of 10 KB.
Transplantation of a Tissue-Engineered Pulmonary Artery (2001)

To the Editor: Various vascular grafts are commonly used in the reconstruction of cardiovascular tissues. However, prosthetic or bioprosthetic materials lack growth potential and therefore in child...
Self-Assembled Nanoparticle Dimer Antennas for Plasmonic-Enhanced Single-Molecule Fluorescence Detection at Micromolar Concentrations (2015)

Plasmonic antennas offer extremely promising strategies to enhance single molecule fluorescence sensing and breach the limitations set by diffraction. However, the technical difficulty and limited availability of top-down nanofabrication techniques enabling nanometer gap sizes are limiting the impact of plasmonic antennas for biochemical and biophysical applications. Here we demonstrate the effectiveness of self-assembled nanoparticle gap antennas to enhance single molecule fluorescence detection at high concentrations. For a dimer of 80 nm gold nanoparticles with 6 nm gap, we isolate detection volumes down to 70 zL (equivalent to λ3/3600) and achieve 600-fold fluorescence enhancement, microsecond transit time, and operation of fluorescence correlation spectroscopy at concentrations exceeding 10 μM. We quantify the near-field detection volume and the fluorescence enhancement for different self-assembled nanoantenna designs using fluorescence correlation spectroscopy. The combination of the fabrication simplicity with the large fluorescence enhancement makes the self-assembled colloidal nanoparticle gap antennas optimal to extend a wide variety of single-molecule applications toward the biologically relevant micromolar concentration regime.
<i>N</i>,<i>N</i>‘-Carbonyldiimidazole-Mediated Cyclization of Amino Alcohols to Substituted Azetidines and Other <i>N</i>-Heterocycles (2006)

Amino alcohols are important synthons for N-heterocycles. We have developed an efficient method to activate hydroxyl groups, which avoids the use of toxic reagents and tolerates a wide variety of functional groups. Our strategy has been applied to the synthesis of functionalized p-methoxyphenyl-protected azetidines, pyrrolidines, and piperidines. The required amino alcohols were synthesized according to an optimized proline-catalyzed Mannich protocol. An azetidine analogue of ezetimibe was synthesized to demonstrate the potential for the synthesis of drug-like molecules.
A panel of transferable fragments of human chromosome 11q (1997)

Cytogenetic and molecular studies have implicated one or more tumor suppressor genes on the long arm of human chromosome 11 in the malignant progression of several human solid tumors, including malignant melanoma and carcinomas of the breast, cervix, ovary, and lung. Microcell-mediated chromosome transfer of an intact copy of chromosome 11 into tumor cell lines has provided additional evidence of tumor suppressor gene function in melanoma, breast cancer, and cervical cancer. However, sublocalization of the region(s) conferring the tumor suppressive effect has been difficult. To facilitate mapping of tumor suppressor gene(s) on chromosome 11, we have generated a panel of 25 mouse donor cell lines containing neo-tagged fragments of human chromosome 11q which can be transferred into cell lines to test for tumor suppressor activity. The chromosome fragments in these cell lines have been characterized by fluorescence in situ hybridization with probes to human DNA and to the centromere of chromosome 11, and also by analysis of microsatellite markers spanning chromosome 11. Finally, to demonstrate the usefulness of these cell lines as donors for microcell-mediated chromosome transfer, two fragments were transferred into the human melanoma cell line UACC 903. This panel of selectable subchromosomal fragments, derived from the long arm of human chromosome 11, will be useful for the regional localization of tumor suppressors and other genes by means of functional assays.