gebhart/patrepeval huggingface dataset:
Achievable privacy-performance tradeoffs for spectrum sharing with a sensing infrastructure (2018)

Motivated by growing demand for radio frequency spectrum, spectrum regulators are laying the groundwork for centralized, dynamic spectrum sharing systems that will enable efficient access to spectrum for new wireless technologies. With a database of spectrum user information, and an infrastructure of spectrum sensors, these sharing systems will leverage cognitive radio concepts to automatically identify suitable spectrum for users. Whether incumbent users should provide information directly to the database or rely on the sensor network for detection remains an open question with implications for the effectiveness of the sharing and the privacy of the users. Both methods present the potential to explore a privacy-performance tradeoff within the sharing system. In this work we assess this tradeoff with both sensing and interface obfuscation approaches in a spectrum sharing system. We identify key design parameters in a formal model for the sharing system architecture, and conduct a thorough simulation study of a real-world use case to quantify privacy and performance. While abstract models suggest sensing based solutions should compare favorably with obfuscation heuristics applied to the user interface, the performance of realistic sensor network designs suggests that achieving a favorable privacy-performance tradeoff with sensor networks may be significantly limited by practical considerations.
In Vitro and In Vivo Evaluation of the Anticancer and Anti-inflammatory Activities of 2-Himachelen-7-ol isolated from Cedrus Libani (2019)

Cedrus libani is a majestic evergreen tree native to the Mediterranean mountains of Lebanon, Syria and Turkey. In this study, the tree heart wood was extracted using hexane to produce C. libani oil extract (CLOE) as a dark oil. GCMS analysis of CLOE identified up to 30 compounds whereby 2-himachalen-7-ol (7-HC) was the most abundant (40%). 7-HC was isolated using column chromatography and the identity of the white crystalline solid was confirmed via NMR spectroscopy and X-Ray Crystallography. 7-HC demonstrated potent cytotoxic activity against several human cancer cell lines including brain (SF-268, IC<sub>50</sub> 8.1 μg/mL) and colon (HT-29, IC<sub>50</sub> 10.1 μg/mL; Caco-2, IC<sub>50</sub> 9.9 μg/mL) with ovarian (Sk-OV-3, IC<sub>50</sub> > 50 μg/mL) cells being the most resistant. However, while HT-29 displayed resistance to Cisplatin, 7-HC was 8-10 folds more potent. Co-treatment with 7-HC and Cisplatin showed a significant synergistic anti-proliferative effect against SF-268, HT-29 and Caco-2 cells. 7-HC also exhibited significant anti-inflammatory effect in formalin-induced paw edema in rats. Western blot analysis revealed that 7-HC displayed dose dependent inhibition of LPS-induced COX-2 protein expression in isolated rat monocytes. The present study demonstrates that 7-HC possesses promising anticancer and anti-inflammatory activities, and may serve as a lead molecule in cancer therapy.
From Neural Command to Robotic Use: The Role of Symmetry/Asymmetry in Postural and Locomotor Activities (2021)

This article deepens a reflection on why and how symmetry/asymmetry affects the motor and postural behavior from the neural source, uterine development, child maturation, and how the notion of symmetry/asymmetry has been applied to walking robot design and control. The concepts of morphology and tensegrity are also presented to illustrate how the biological structures have been used in both sciences and arts. The development of the brain and the neuro-fascia-musculoskeletal system seems to be quite symmetric from the beginning of life through to complete maturity. The neural sources of movements (i.e., central pattern generators) are able to produce both symmetric or asymmetric responses to accommodate to environmental constraints and task requirements. Despite the fact that the human development is mainly symmetric, asymmetries already regulate neurological and physiological development. Laterality and sports training could affect natural musculoskeletal symmetry. The plasticity and flexibility of the nervous system allows the abilities to adapt and compensate for environmental constraints and musculoskeletal asymmetries in order to optimize the postural and movement control. For designing humanoid walking robots, symmetry approaches have been mainly used to reduce the complexity of the online calculation. Applications in neurological retraining and rehabilitation should also be considered.
2D and 3D photonic crystal materials for photocatalysis and electrochemical energy storage and conversion (2016)

This perspective reviews recent advances in inverse opal structures, how they have been developed, studied and applied as catalysts, catalyst support materials, as electrode materials for batteries, water splitting applications, solar-to-fuel conversion and electrochromics, and finally as photonic photocatalysts and photoelectrocatalysts. Throughout, we detail some of the salient optical characteristics that underpin recent results and form the basis for light-matter interactions that span electrochemical energy conversion systems as well as photocatalytic systems. Strategies for using 2D as well as 3D structures, ordered macroporous materials such as inverse opals are summarized and recent work on plasmonic-photonic coupling in metal nanoparticle-infiltrated wide band gap inverse opals for enhanced photoelectrochemistry are provided.
Shock Sensitivity of Explosives Clarified (1987)

RETURN TO ISSUEPREVNewsNEXTShock Sensitivity of Explosives ClarifiedWARD WORTHYView Author Information ChicagoCite this: Chem. Eng. News 1987, 65, 32, 25Publication Date (Print):August 10, 1987Publication History Published online8 November 2010Published inissue 10 August 1987https://pubs.acs.org/doi/10.1021/cen-v065n032.p025https://doi.org/10.1021/cen-v065n032.p025newsACS PublicationsCopyright © 1987 AMERICAN CHEMICAL SOCIETYArticle Views13Altmetric-Citations1LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options SUBJECTS:Explosives Get e-Alerts
Protein structural domain parsing by consensus reasoning over multiple knowledge sources and methods. (2001)

Domain parsing, or the detection of signals of protein structural domains from sequence data, is a complex and difficult problem. If carried out reliably it would be a powerful interpretive and predictive tool for genomic and proteomic studies. We report on a novel approach to domain parsing using consensus techniques based on Hidden Markov Models (HMMs) and BLAST searches built from a training set of 1471 continuous structural domains from the Dali Domain Dictionary (DDD). Validation on an independent test sample of family-matched structural domain sequences from the Scop database yields a consensus prediction performance rate of 75.5%, well above the 58% obtained by simple agreement of methods.
Sialidases (neuraminidases) in bacterial vaginosis and bacterial vaginosis-associated microflora (1992)

Bacterial vaginosis, Prevotella species, and Bacteroides species have been associated with prematurity and upper genital tract infection. Prevotella (Bacteroides) species and Bacteroides fragilis have also been associated with preterm birth. However, the mechanism by which lower genital tract infection causes upper genital tract disease remains poorly understood. Sialidases (neuraminidases) are enzymes which enhance the ability of microorganisms to invade and destroy tissue. Elevated levels of sialidase activity were detected in 42 (84%) of 50 vaginal fluid specimens from women with bacterial vaginosis and none of 19 vaginal fluids from women without bacterial vaginosis (P less than 0.001). Vaginal fluid from women with bacterial vaginosis had a median specific activity of 9.8 U compared to 2.5 U of sialidase in women without bacterial vaginosis (P less than 0.001). In order to determine the probable source of sialidases in vaginal fluid, the microorganisms recovered from women with bacterial vaginosis before and after treatment were assayed. Of 28 specimens from women with bacterial vaginosis, 27 (96%) yielded sialidase-positive bacteria, at a median concentration of 10(6.5) CFU/ml of vaginal fluid. Prevotella and Bacteroides species accounted for the sialidase activity in 26 of the vaginal fluids, and Gardnerella vaginalis accounted for the sialidase activity in the remaining fluid. After treatment, sialidase was detected in the vaginal fluid of 1 (5%) of 22 women who responded to therapy and in all of 6 women for whom therapy failed. These data suggest that vaginal fluid sialidase is highly correlated with bacterial vaginosis and that the probable sources for this enzyme activity are the Bacteroides and Prevotella species present in the vagina.
Ablation-Dominated Arcs in CO<sup>2</sup> Atmosphere - Part II: Molecule Emission and Absorption (2020)

Molecule radiation can be used as a tool to study colder regions in switching arc plasmas like arc fringes in contact to walls and ranges around current zero (CZ). This is demonstrated in the present study for the first time for the case of ablation-dominated high&amp;ndash;current arcs as key elements of self&amp;ndash;blast circuit breakers. The arc in a model circuit breaker (MCB) in CO2 with and an arc in a long nozzle under ambient conditions with peak currents between 5 and 10 kA were studied by emission and absorption spectroscopy in the visible spectral range. The nozzle material was polytetrafluoroethylene (PTFE) in both cases. Imaging spectroscopy was carried out either with high-speed cameras or with intensified CCD cameras. A pulsed high-intensity Xe lamp was applied as background radiator for the broad-band absorption spectroscopy. Emission of Swan bands from carbon dimers was observed at the edge of nozzles only or across the whole nozzle radius with highest intensity in the arc center, depending on current and nozzle geometry. Furthermore, absorption of C2 Swan bands and CuF bands were found with the arc plasma serving as background radiator. After CZ, only CuF was detected in absorption experiments.
Bridging the Gap: Rewritable Electronics Using Real-Time Light-Induced Dielectrophoresis on Lithium Niobate (2017)

In the context of micro-electronics, the real-time manipulation and placement of components using optics alone promises a route towards increasingly dynamic systems, where the geometry and function of the device is not fixed at the point of fabrication. Here, we demonstrate physically reconfigurable circuitry through light-induced dielectrophoresis on lithium niobate. Using virtual electrodes, patterned by light, to trap, move, and chain individual micro-solder-beads in real-time via dielectrophoresis, we demonstrate rewritable electrical contacts which can make electrical connections between surface-bound components. The completed micro-solder-bead bridges were found to have relatively low resistances that were not solely dominated by the number of interfaces, or the number of discrete beads, in the connection. Significantly, these connections are formed without any melting/fusing of the beads, a key feature of this technique that enables reconfigurability. Requiring only a low-power (~3.5 mW) laser source to activate, and without the need for external power supply or signal generation, the all-optical simplicity of virtual-electrodes may prove significant for the future development of reconfigurable electronic systems.
A Cumulative Sum-Based Fault Detector for Power System Relaying Application (2008)

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> In this paper, a cumulative-sum-based fault detection algorithm is proposed for the power system relaying application. Literature suggests the successful application of this method to process control systems where the deviation of parameters is tracked to indicate any abnormal conditions. The effectiveness of the algorithm is found to be better than the traditional methods in the presence of noise, system frequency deviation, and other uncertainties. It is also not affected by load change in a system. Above all, it provides relatively higher index values without compromising detection speed. </para>
Theory of quantum secret sharing (2000)

I present a variety of results on the theory of quantum secret sharing. I show that any mixed state quantum secret sharing scheme can be derived by discarding a share from a pure state scheme, and that the size of each share in a quantum secret sharing scheme must be at least as large as the size of the secret. I show that the only constraints on the existence of quantum secret sharing schemes with general access structures are monotonicity (if a set is authorized, so are larger sets) and the no-cloning theorem. I also discuss some aspects of sharing classical secrets using quantum states. In this situation, the size of each share can sometimes be half the size of the classical secret.
Distribution of Mucus and Sperm in Bovine Oviducts After Artificial Insemination: The Physical Environment of the Oviductal Sperm Reservoir1 (1997)

There is a sperm reservoir in the caudal oviduct of cattle and other mammals. We had observed trapping of sperm by mucus produced by explants of bovine oviductal epithelium in vitro; therefore, we used techniques designed for preserving mucus and luminal dimensions to determine whether mucus is associated with the reservoir in vivo. Heifers were synchronized by prostaglandin injections and inseminated during estrus. Oviducts on the side of ovulation were surgically removed either 8-10 h after insemination (preovulatory) or 50-55 h after insemination (postovulatory). Segments (1 cm) taken from the uterotubal junction (UTJ), caudal 3 cm of isthmus, and mid ampulla were snap frozen. Frozen sections were coated with collodion and postfixed in phosphate-buffered formaldehyde containing cetyl-pyridinium chloride. Sections were alternately stained with periodic acid-Schiff stain (PAS) or alcian blue/PAS. Most of the oviductal lumen was highly branched with passages that measured only a few microns across and were filled with mucus. In limited areas, the lumen opened to 100 microm across and was only lightly stained for mucus. Overall, the lumen was much narrower than in sections prepared by standard fixation and paraffin embedding. Sperm were found scattered throughout the lumen of the UTJ and isthmus, in both the narrow, deeply stained luminal areas and the wider, lightly stained areas. The numbers tapered off cranially, especially prior to ovulation. In conclusion, the combination of narrow passages and mucus would appear to impede sperm progress, contributing to the creation of a reservoir.
PARTICIPAÇÃO, MARGINALIDADE E MARGINALIZAÇÃO SOCIAL (2004)

O presente artigo aborda questoes relativas ao sentido da participacao em diversos âmbitos sociais e exemplos de lutas historicas que colaboraram para maior engajamento da populacao nos processos participativos. Especifica a necessidade da formacao de uma cultura participativa e coloca a tona os principios entravesm participacionistas que geram, como consequencia, processos de marginalizacao social, irregularmente classificados de marginalidade social.
Payload spin assembly for the commercial Titan launch vehicle (1991)

A contract was completed to design, build, and test a Payload Spin Assembly (PSA) for installation onto the Martin Marietta Titan 3 Commercial launch vehicle. This assembly provides launch support for satellite payloads up to 5783 kilograms (6.37 tons) and controls release, spin-up, and final separation of the satellite from the second stage. Once separated, the satellite's Perigee Kick Motor (PKM) boosts the satellite into its transfer orbit. The first successful flight occurred December 31, 1989. Requirements, design, test, and problems associated with this mechanical assembly are discussed.
Plasma VEGF-A (pVEGF-A) level in efficacy analysis of metastatic colorectal cancer patients (mCRC) treated with mFOLFOX6/XELOX plus bevacizumab (BV) (WJOG7612GTR). (2018)

699 Background: Plasma levels of VEGF-A short isoforms (VEGF-A110 and -A121) measured by immunological multiparametric chip technique (IMPACT) were reported to be associated with clinical benefits from bevacizumab (BV) in advanced gastric and pancreatic cancer but not in metastatic colorectal cancer (mCRC). Negative results in mCRC studies might be caused by different sample handling: citrate instead of EDTA and repetition of freeze/thaw. Methods: Blood samples were collected in EDTA before the first-line treatment with BV+mFOLFOX6 or +XELOX for mCRC. Plasma samples were analyzed at Roche Diagnostics Ltd. (Penzberg, Germany) using IMPACT-2 (Roche proprietary multiplex enzyme-linked immunosorbent assay platform). A median value of pVEGF-A was used as a cut-off point to categorize patients (pts) into the low and high pVEGF-A groups. Progression free survival (PFS) and overall survival (OS) between the low and high pVEGF-A groups were compared, using Cox proportional hazards model. We hypothesized that BV-containing treatment extend shorter PFS of pts with high pVEGF-A to that with low pVEGF-A, and estimated a threshold hazard ratio (HR) between them as below 1.15. Results: Among 102 pts enrolled between January 2014 and April 2015, 100 (53 BV+mFOLFOX6 and 47 BV+XELOX) were eligible. Median PFS was 11.4 months [95% CI, 9.5-13.0] and response rate was 64.6 % [range, 53.3-74.9]. pVEGF-A was measured in 97 pts and the median value was 36.8 pg/ml [range, 6.5- 262.2]. The hazard ratios of PFS and OS between the high and low pVEGF-A groups were 1.23 [95%CI, 0.76-1.97, p = 0.40] and 2.47 [95%CI, 1.14-5.36, p = 0.02], respectively. Conclusions: mCRC pts with high pVEGF-A showed shorter PFS than those with low pVEGF-A beyond the predefined threshold (HR 1.15) in BV-containing chemotherapy, suggesting that pVEGF-A could not be a predictive marker for BV efficacy. Clinical trial information: UMIN000012442.
If you build it, will they come? Using a mobile safety centre to disseminate safety information and products to low-income urban families (2009)

This approach to disseminating injury prevention interventions holds promise for enhancing the appeal of safety information and increasing the protection of children.
An optimal spatial-temporal smoothness approach for tile-based 360-degree video streaming (2017)

The world is becoming more and more virtual than we ever thought it would be. Many video service providers have rolled out 360-degree videos which provide immersive experience to users. However, huge bandwidth occupation of 360-degree video hinders its wide spreading over the Internet. Besides, only part of the video is displayed on the screen, transmitting whole video results in waste of bandwidth and computational resources. Tile-based adaptive streaming is regarded as a bandwidth-friendly approach which only delivers specific portion of the whole video. It requires the clients to decide which portion and at which bitrates to deliver. However, due to both space and time partition of 360-degree videos in tile-based adaptive streaming, there still exists a challenge on the quality inconsistence on spatial and temporal domains. In this paper, we propose a optimal spatial-temporal smoothness approach under restricted network for tile-based adaptive streaming. The bitrates of tiles are determined optimally, aiming at maximizing the overall quality while minimizing the spatial and temporal quality variation. By conducting extensive experiments over real bandwidth dataset and user's head movement traces, our approach can get a significant improvement. Specifically, the Viewport-PSNR can be raised by 24.1% compared with traditional delivery of whole 360 video; while the spatial and temporal stability can be improved by 40.5% and 24.6% respectively compared with tile-based streaming.
Clinical Usefulness of Nasopharyngeal Airway (NPA) In Snoring Patients During Gastric Endoscopic Submucosal Dissection (2021)

Aims When sedative ESD is performed, snoring or sleep apnea sometimes occurs, which can lead to SpO2 decrease. Snoring increases the movement of the diaphragm. Result in increased movement of target lesion during procedure. This makes Knife difficult to cut in the desired position. There is a study suggesting that the use of NPA improves the reduction of SpO2 in sedative endoscopy.
Type II restriction endonucleases cleave single-stranded DNAs in general (1985)

Restriction endonucleases (13 out of 18 species used for the test) were certified to cleave single-stranded(ss)DNA. Such enzymes as AvaII, HaeII, DdeI, AluI, Sau3AI, AccII,TthHB8I and HapII were newly reported to cleave ssDNA. A model to account for the cleavage of ssDNA by restriction enzymes was proposed with supportive data. The essential part of the model was that restriction enzymes preferentially cleave transiently formed secondary structures (called canonical structures) in ssDNA composed of two recognition sequences with two fold rotational symmetry. This means that a restriction enzyme can cleave ssDNAs in general so far as the DNAs have the sequences of restriction sites for the enzyme, and that the rate of cleavage depends on the stabilities of canonical structures.
Reasons for U.S. Producer Selection of a Goat Enterprise (2014)

This paper addresses 14 possible reasons why meat goat producers selected to engage in meat goat production, with results having implications for research, extension, and teaching efforts. A survey of meat goat producers was conducted. Reasons for entering meat goat production were assessed and analyzed using ordered probit models.