gebhart/patrepeval huggingface dataset:
Invariant Description and Retrieval of Planar Shapes Using Radon Composite Features (2008)

This paper proposes a novel feature-based invariant descriptor termed Radon composite features (RCFs) for planar shapes. Instead of analyzing shapes directly in the spatial domain, some shape features are extracted from the Radon transform plane using statistical and spectral analysis. The proposed method overcomes the drawbacks of existing shape representation techniques since it accomplishes the invariances to common geometrical transformations without any normalization process, which usually causes inaccuracies. A novel hierarchical strategy with RCFs can achieve low complexity and coarse-to-fine retrieval, and perform accurately when retrieving shapes, while remaining robust against variations. Experiments demonstrate that RCF provides a higher degree of discrimination as compared with several state-of-the-art approaches.
Precision Guidance of Agricultural Tractors for Autonomous Farming (2008)

The agricultural industry is undergoing significant cultural shifts at present and will continue to do so into the future. These shifts have come about due to the emergence of more 'corporate' style farming, where declines in the labour workforce and increased emphasis on global competition, means a demand for increased efficiency and productivity in farming operations. Such a demand in turn lends itself to so called Precision Autonomous Farming (PAF). This paper presents ongoing work and progress in implementing a Systems Engineering approach to agricultural automation. An overview of the farming system is presented, depicting a system-of-system architecture. Each sub-system is described in more detail, and include the crop layout system, the software system, and the precision autonomous agricultural machinery system. Such autonomous machinery is used for seeding, crop sensing, harvesting, weeding and other follow-up operations. The authors propose the development and ongoing management of a Precision Farming Data Set (PFDS) formed off-line before crop cultivation, and used to achieve optimal performance of the farming system by specifying the spatial precision required for agricultural operations. Preliminary results are shown, highlighting the development and use of a fully instrumented tractor for use in agricultural operations, as well as initial research into developing high level path tracking controller for such machinery.
Raman Spectral Imaging for the Detection of Inhalable Microplastics in Ambient Particulate Matter Samples (2019)

Microplastics are ubiquitous contaminants, with preliminary evidence indicating they are a novel component of air pollution. This presents a plausible inhalation exposure pathway, should microplastics occur in the inhalable size range; however, this remains an analytical challenge. Here, we develop a filter-based sampling method compatible with both air quality monitoring and Raman spectral imaging (RSI) for the detection of inhalable-sized microplastics. Clean and particulate matter (PM) contaminated filters of a range of compositions were screened. RSI was validated using a plastic microbead suspension (poly(methyl methacrylate) (5-27 μm), polyethylene (10-27 μm), and polystyrene (4 and 10 μm)). Filters were loaded with the suspension before being analyzed. RSI analysis was conducted using a univariate analysis, fitting unique plastic bands to the spectral data sets, where high spatial intensity indicated the presence of microplastics. Inhalable microplastics were not visibly detectable against quartz or spectroscopically detectable against polytetrafluoroethylene (PTFE)- and alumina-based filters. While microplastics were detectable against cellulose, the PM-contaminated filters (4 and 24 h) burned during analysis. The greatest intensities for microplastics were observed against the silver membrane filter, and inhalable microplastics were still detectable in a 24 h PM sample. These findings will facilitate the acquisition of inhalable microplastic concentrations, which are necessary for understanding microplastic exposure and, ultimately, what their potential role in PM-associated health effects might be.
ZnO-based one diode-one resistor device structure for crossbar memory applications (2012)

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 Zi-Jheng Liu, Jon-Yiew Gan, Tri-Rung Yew; ZnO-based one diode-one resistor device structure for crossbar memory applications. Appl. Phys. Lett. 9 April 2012; 100 (15): 153503. https://doi.org/10.1063/1.3701722 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 ContentAIP Publishing PortfolioApplied Physics Letters Search Advanced Search |Citation Search
Databases will visualize queries too (2011)

Visual Query Languages study ways to help users compose queries with visual metaphors. Information Visualization studies automatic visualization techniques to help users understand and analyze data. Query Management focuses on ways to help users manage and re-use existing queries. We observe that there is a related research question across those three topics which has not received much attention, namely that of Query Visualization: How to visually represent a query to help users quickly understand its intent? Here we argue that the involved challenges are still markedly different from those of the other three, that a solution can considerably improve the usability of DBMSs, and that the topic is thus worthy of attention. We envision, that in a few years, there will be free, modular, and lightweight tools available that allow users to visualize and interpret their queries.
Blood Pressure Tracking Over the Adult Life Course (2012)

The extent to which select vascular risk factors differentially influence blood pressure (BP) is incompletely understood. Thus, we used multilevel modeling to analyze serial BP measurements using 21 732 person-observations obtained on Framingham Heart Study participants (mean age, 38 years, 52% women; 4993 unique individuals) over a 28-year period. We related longitudinal tracking of each BP measure (systolic BP, diastolic BP, mean arterial pressure, and pulse pressure) to age, sex, body mass index, smoking, diabetes mellitus, total/high-density lipoprotein cholesterol ratio, and heart rate. In multivariable-adjusted analyses, we observed that older age, male sex, greater body mass index, and higher heart rate were positively associated with increase in all BP measures (P<0.0001). Notably, higher total/high-density lipoprotein cholesterol ratio was associated with greater mean arterial pressure (P<0.01). Conversely, diabetes mellitus and smoking were associated with higher pulse pressure (P<0.01). We also observed effect modification by sex: the increase in pulse pressure with age and body mass index was more pronounced in women compared with men (P<0.0001). All BP measures tracked at higher levels in both men and women with multiple vascular risk factors. Taken together, our longitudinal observations in a large community-based sample demonstrate a greater pulsatile load in women than in men with increasing age. We also observed a differential impact of select vascular risk factors on the individual components of BP, underscoring distinct regulation of these measures over the life course.
Modelling of line profile asymmetry caused by axial divergence in powder diffraction (2001)

A procedure is presented for modelling the axial divergence aberration profile, taking into account all second-order and end effects of the diffractometer system. It is shown that relatively simple calculations, which could be introduced into Rietveld refinement programs, allow the instrument line profile to be modelled accurately at low and high scattering angles. This model compares well with ray-tracing calculations and can give better results than the usually used model proposed by Van Laar & Yelon [ J. Appl. Cryst. (1984), 17 , 47–54] and Finger, Cox & Jephcoat [ J. Appl. Cryst. (1994), 27 , 892–900].
Hypertensive target organ damage is attenuated by a p38 MAPK inhibitor: role of systemic blood pressure and endothelial protection (2005)

The results demonstrate that morbidity/mortality and accelerated target organ damage induced by inhibition of nitric oxide synthase in SHR was attenuated by treatment with a selective p38 MAPK inhibitor, SB-239063AN. The organ protection observed in the heart and kidney was not associated with preservation of endothelial function.
Deactivation of Formate Dehydrogenase (FDH) in Solution and at Gas‐Liquid Interfaces (2005)

Enzymes, increasingly important in the synthesis of fine chemicals and pharmaceutical intermediates, are often insufficiently stable under reacting conditions. We have investigated the stability, in homogeneous aqueous solution and at gas-liquid interfaces, of formate dehydrogenase (FDH), important for cofactor regeneration, from Candida boidinii and overexpressed in E. coli. When exposed to mechanical stress, residual activity, [E](t)/[E](0), and residual protein were found to scale proportionally with gas-liquid surface area in the bubble column, verifying a surface-driven process, and with time and total throughput in a gear pump, but did not seem to be influenced much by shear in a Couette viscometer. All FDH variants are deactivated by chaotropes but not kosmotropes: the first-order deactivation constant k(d) correlates well with the Jones-Dole coefficient B but not well with the surface tension increment deltasigma of various concentrated ammonium salt solutions. This finding might provide guidance for focusing the search for quantitative theories of Hofmeister effects.
An overview and preparation for recognition of emotion from speech signal with multi modal fusion (2010)

The goal of this work is to build emotion detection system which utilizes fusion of different timescale features of speech. Conventional spectral and prosody features are used and a new information fusion algorithm which takes care of the characteristics of each machine learning algorithm will be introduced in the paper.
A self-tuning dvs processor using delay-error detection and correction (2005)

In this paper, we present the implementation and silicon measurements results of a 64bit processor fabricated in 0.18/spl mu/m technology. The processor employs delay-error detection and correction scheme called Razor to eliminate voltage safety margins and scale voltage 120mV below the first failure point. It achieves 44% energy savings over the worst case operating conditions for a 0.1 % targeted error rate at a fixed frequency of 120MHz.
Modulation Spliced Transform Binaural Cue Coding Algorithm-based Encoder (2016)

Perceptual parameters ICLD, ICTD and ICC has a very important practical significance, so the use of these parameters, the researchers propose parameters based on FFT frequency domain binaural cue coding method to achieve a better stereo encoding quality. Compared with the FFT, modulation spliced transform (Modulated Lapped Transform, MLT) has an energy concentration, facilitating the removal of the characteristics of inter-blocking effect. Therefore, this article will be applied to binaural cue coding MLT transform them, to achieve a binaural cue coding method based MLT transform
An Introductory Study on Time Series Modeling and Forecasting (2013)

Time series modeling and forecasting has fundamental importance to various practical domains. Thus a lot of active research works is going on in this subject during several years. Many important models have been proposed in literature for improving the accuracy and effectiveness of time series forecasting. The aim of this dissertation work is to present a concise description of some popular time series forecasting models used in practice, with their salient features. In this thesis, we have described three important classes of time series models, viz. the stochastic, neural networks and SVM based models, together with their inherent forecasting strengths and weaknesses. We have also discussed about the basic issues related to time series modeling, such as stationarity, parsimony, overfitting, etc. Our discussion about different time series models is supported by giving the experimental forecast results, performed on six real time series datasets. While fitting a model to a dataset, special care is taken to select the most parsimonious one. To evaluate forecast accuracy as well as to compare among different models fitted to a time series, we have used the five performance measures, viz. MSE, MAD, RMSE, MAPE and Theil's U-statistics. For each of the six datasets, we have shown the obtained forecast diagram which graphically depicts the closeness between the original and forecasted observations. To have authenticity as well as clarity in our discussion about time series modeling and forecasting, we have taken the help of various published research works from reputed journals and some standard books.
Epileptic Syndromes in Infancy, Childhood and Adolescence. Second Edition. Edited by J. Roger, M. Bureau, C. Dravet, F. Dreifuss, A. Perret and P. Wolf. Published by J. Libbey & Co. 418 pages. $61.00 Cdn. (1993)

Epileptic Syndromes in Infancy, Childhood and Adolescence. Second Edition. Edited by J. Roger, M. Bureau, C. Dravet, F. Dreifuss, A. Perret and P. Wolf. Published by J. Libbey & Co. 418 pages. $61.00 Cdn. - Volume 20 Issue 3
Computational Alchemy (1992)

Machine learning (ML) is transforming all areas of science. The complex and time-consuming calculations in molecular simulations are particularly suitable for an ML revolution and have already been profoundly affected by the application of existing ML ...Read More
Dipstick Proteinuria as a Screening Strategy to Identify Rapid Renal Decline (2011)

Rapid kidney function decline (RKFD) predicts cardiovascular morbidity and mortality, but serial assessment of estimated GFR (eGFR) is not cost-effective for the general population. Here, we evaluated the predictive value of albuminuria and three thresholds of dipstick proteinuria to identify RKFD in 2,574 participants in a community-based prospective cohort study with a median of 7 years follow-up. Median change in eGFR was -0.78 ml/min per 1.73 m(2) per year; with 8.5% experiencing RKFD, defined as a >5% annual eGFR decline from baseline. Of those with RKFD, 65% advanced to a new CKD stage compared with 19% of those without RKFD. Dipstick protein ≥ 1 g/L was a stronger predictor of RKFD than albuminuria. Overall, 2.5% screened positive for dipstick protein ≥ 1 g/L at baseline; one of every 2.6 patients would have RKFD if all were followed with serial eGFR measurement. Overall, the screening strategy correctly identified progression status for 90.8% of patients, mislabeled 1.5% as RKFD, and missed 7.7% with eventual RKFD. Among those with risk factors (cardiovascular disease, age >60, diabetes, or hypertension), the probability of identifying RKFD from serial eGFR measurements increased from 13 to 44% after incorporating dipstick protein (≥ 1 g/L threshold). In summary, inexpensive screening with urine dipstick should allow primary care physicians to follow fewer patients with serial eGFR assessment but still identify those with rapid decline of kidney function.
Effect of Chitosan on Cucumber Plants: Suppression of<i>Pythium aphanidermatum</i>and Induction of Defense Reactions (1994)

Biological activity of chitosan on Pythium rot of cucumber was investigated. Growing cucumber plants in the presence of chitosan (100 or 400 μg/ml) controlled root rot caused by Pythium aphanidermatum and triggered several host defense responses, including the induction of structural barriers in root tissues and the stimulation of antifungal hydrolases (chitinase, chitosanase, and β-1,3-glucanase) in both the roots and leaves. Whereas chitosan did not cause any apparent phytotoxicity to cucumber plants, it adversely affected the growth of P. aplnanidermatum. A close examination of hyphal cells revealed that chitosan caused wall loosening, vacuolation, and, in some cases, protoplasm disintegration [...]
Effect of Porphyran isolated from Laver, Porphyra yezoensis, on Liver Lipid Peroxidation in Hyperlipidemic Rats and on Immunological Functions in Mice (2002)

This study was carried out to investigate the effect of porphyran on enzyme activity in rats and immunity in mice. Animals were divided into 5 groups, and were given porphyran diet for 4 weeks. Porphyran was extracted from Porphyra yezoensis: Diet groups were normal diet, control diet fed high fat, cholesterol and sodium cholate, control and 1% porphyran diet (1% PD), control and 5% porphyran diet (5% PD), control and 10% of porphyran diet (10% PD). Also Balb/c female mouse were injected i.p. with porphyran extract every other day for 20 days at levels of 1%, 2% and 5%. Alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP) and lactate dehydrogenase (LDH) activities were lower in the porphyran diet group than those in control group. Superoxide dismutase and catalase activities in liver homogenates were reduced in porphyran diet group compared to those of control group. Also, the level of liver thiobarbituric acid reactive substance (TBARS) was lower in porphyran group than that of control group. Porphyran increased IL-1 production in a dose-dependent manner, however, interleukine-2 production was reduced as the amount of porphyran increases. These results showed that supplementation of porphyran lowered antioxidant enzyme activities and has possibility of modulating immunological function.
Significance of Nano- and Microtopography for Cell-Surface Interactions in Orthopaedic Implants (2007)

Cell-surface interactions play a crucial role for biomaterial application in orthopaedics. It is evident that not only the chemical composition of solid substances influence cellular adherence, migration, proliferation and differentiation but also the surface topography of a biomaterial. The progressive application of nanostructured surfaces in medicine has gained increasing interest to improve the cytocompatibility and osteointegration of orthopaedic implants. Therefore, the understanding of cell-surface interactions is of major interest for these substances. In this review, we elucidate the principle mechanisms of nano- and microscale cell-surface interactions in vitro for different cell types onto typical orthopaedic biomaterials such as titanium (Ti), cobalt-chrome-molybdenum (CoCrMo) alloys, stainless steel (SS), as well as synthetic polymers (UHMWPE, XLPE, PEEK, PLLA). In addition, effects of nano- and microscaled particles and their significance in orthopaedics were reviewed. The significance for the cytocompatibility of nanobiomaterials is discussed critically.
Efficacy of Dendritic Cells Matured Early with OK-432 (Picibanil®), Prostaglandin E<sub>2</sub>, and Interferon-α as a Vaccine for a Hormone Refractory Prostate Cancer Cell Line (2010)

Dendritic cells (DCs) are potent antigen-presenting cells. OK432 (Picibanil) was introduced as a potent stimulator of DC maturation in combination with prostaglandin-E(2) and interferon-alpha. We compared the efficacy of a DC-prostate cancer vaccine using early-mature DCs stimulated with OK432, PGE2 and INF-alpha (OPA) with that of vaccines using other methods. On days 3 or 7 of DC culture, TNF-alpha (T), TNF-alpha and LPS (TL) or OPA were employed as maturation stimulators. DU145 cells subjected to heat stress were hybridized with mature DCs using polyethyleneglycol. T cells were sensitized by the hybrids, and their proliferative and cytokine secretion activities and cytotoxicity were measured. The yields of early-mature DCs were higher, compared to yields at the conventional maturation time (P<0.05). In the early maturation setting, the mean fusion ratios, calculated from the fraction of dual-positive cells, were 13.3%, 18.6%, and 39.9%, respectively (P=0.051) in the T only, TL, and OPA-treated groups. The function of cytotoxic T cells, which were sensitized with the hybrids containing DCs matured early with OPA, was superior to that using other methods. The antitumor effects of DC-DU145 hybrids generated with DCs subjected to early maturation with the OPA may be superior to that of the hybrids using conventional maturation methods.
Observation of quantum size effect in the resistivity of thin, gray tin epilayers (1989)

Thin, gray tin films, with thicknesses from 50 to 375 Å, have been grown on (001) CdTe wafers by the molecular beam epitaxy technique. Resistivity measurements in the intrinsic region show a thickness-dependent band gap. Quantum size effect theory using a square well potential has been used to interpret the experimental data.
Full Bleaching of ASAM Pulps without Chlorine Compounds (1988)

On etudie le blanchiment sans chlore de pâtes au sulfite alcalin avec addition d'anthraquinone et de methanol
Travoprost compared with other prostaglandin analogues or timolol in patients with open‐angle glaucoma or ocular hypertension: meta‐analysis of randomized controlled trials (2006)

According to data available, travoprost is more effective than timolol in lowering IOP in patients with open-angle glaucoma or ocular hypertension. Compared with other prostaglandin analogues, travoprost appears to be equivalent to bimatoprost and latanoprost. Although a limited number of local side-effects were reported, no serious treatment-related side-effects were reported.
Design features of a premises cordless telephone system (2002)

The premises cordless telephone (PCT) system provides a full function access to PSTN (public switched telephone network) subscriber lines via an existing PBX (private branch exchange) and/or a single controller or a network of controllers. The system enhances corporate communications by giving callers direct dial-through access to executives on the move and engineers and technicians working out of reach of wired telephones. The system offers similar benefits for offices, hotels, hospitals, building maintenance services, department stores, shopping malls, trade fairs, etc. Base stations configure the microcell structures with location registration and handoff features which will enable system planners to tailor the system economically to the diverse needs of traffic density and to eliminate the shadowing effects of building structures, walls, etc. The system features are described, including uses of the dynamic frequency assignment and flexible base station arrangement (irregularly located) within a microcell (or picocell) structure to ensure user-friendly operations, full extension of system flexibility, and significant increase in the traffic capacity within a highly dense traffic area.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>