gebhart/patrepeval huggingface dataset:
Life-Threatening Ventricular Arrhythmia Detection With Personalized Features (2017)

The timely detection of life-threatening ventricular arrhythmias (VAs) is critical for saving a patient's life. General features that characterize ECG waveforms are extracted for VA detection. To take into account the subtle differences in the QRS complexes among different people, new personalized features are proposed in this paper based on the correlation coefficient between a patient-specific regular QRS-complex template and his/her real-time ECG data. Small sets of the most effective features are chosen with support vector machines from 11 newly extracted and 15 previously existing features, for efficient performance and real-time operation. Our proposed new features aveCC and medianCC are verified to be effective in enhancing the performance of existing features under both the record-based and database-based data divisions. Through 50-time random record-based data divisions, all combinations of two features and three features are tested. The top two-feature combination is VFleak and aveCC, which achieves an area under curve (AUC) value of 98.56%±0.89%, a specificity (SP) of 94.80%±2.15%, and an accuracy (ACC) of 94.66% ± 1.97%; the top three-feature combination is VFleak, MEA, and aveCC, which obtains an AUC of 98.98% ± 0.58%, an SP of 95.56% ± 1.45%, and an ACC of 95.46% ± 1.36%; these results outperform the previous top-two and top-three feature combinations. Similar results are obtained on the database-based data division.
The photo-initiated hydrolysis of 3,5-dimethoxybenzyl phosphates (1970)

3,5-Dimethoxybenzyl phosphate undergoes photo-initiated hydrolysis in aqueous solution and the corresponding acetate can be used to photo-activate phosphoryl transfer by a phospho-mono-ester dissolved in acetonitrile.
The use of bacteriophages for treatment and prevention of bacterial disease in animals and animal models of human infection (2001)

Abstract A brief history of the use of lytic bacteriophages in bacterial disease therapy is presented. After early disillusionment with the idea following poor experimental work, control of phages and field trials, studies were set up in the 1980's in the UK to study their use in farm animal infections. Work with E. coli septicaemia and diarrhoea has shown that phages can be highly effective prophylactically and therapeutically and more effective than antibiotics. There is considerable potential for their use in a limited number of infection types in both man and animals. © 2001 Society of Chemical Industry
Temperature acceleration models in reliability predictions: Justification &#x00026; improvements (2010)

Reliability predictions have been for a long time a difficult task, due to the conflict between high reliability requirements and the lack of component manufacturer data. As the data available during the development phase is the product bill of materials, reliability prediction methods have developed component reliability models based on in-service field return data and/or physics of failure. The repartition of these two approaches has changed over time, where predictions were mainly based on empirical data at the beginning (MIL-HDBK217), but more recently attempts have been made to incorporate some form of physics of failure (MIL217+, FIDES). Note, that even in these attempts the acceleration factor coefficients are still based on empirical data. For our aeronautic applications, with the recent reliability prediction methods, steady-state temperature is the main reliability driver and any wrong assumption in the model can be catastrophic. Our methodology is based on several recent works such as Pecht's model, new mechanisms of failure (hot carrier, delamination, etc) due to greater component integration, and physics of failure simulations (Bernstein). We propose some improvements on this model in order to have some more realistic reliability predictions. For example, we introduce a non Arrhenius model for steady-state temperature for active electronic components and explain in detail why these formulations don't match correctly to real data.
High Speed Progressive Digital-Reversal Algorithm (2010)

This paper describes a number of fast digital-reversal algorithms based on progressive index mapping. The proposed digital-reversal approach can obtain higher efficiency by decreasing the number of index mapping operations, unrolling the innermost loop, and vectorizing data operations. Comparing with other digital-reversal algorithms, we find that the new approach have higher efficiency than the known fastest algorithms.
Area And Diversity Of A Crop Reflects The Diversity Of Others (2013)

This study was carried out to relate the diversity of one crop in terms of number of landraces and farm area with the diversity of other crop. Information collected during baseline survey of in-situ global project (1999) on three crops namely rice, finger millet and sponge gourd in Jumla, Kaski and Bara of Nepal were used. Farm area of each variety and number of landraces grown by sampled household were used for F-test, regression and chi-square analyses to test the diversity of one crop with respect to other. Households having large number of landraces of finger millet maintained large number of rice landraces. Households maintaining different landraces of sponge gourd and finger millet showed a relation with their farm area allotted to rice landraces. Households having large area for rice cultivation maintained a large number of rice landraces in all the sites. The analyses showed that the farmers growing diversity in one crop are more likely to grow diversity in other crops. Similarly, if area in a household allotted to a particular crop species is large, there is chance of growing high diversity of the crop species. Households having large farm size and maintaining high diversity of a crop species may be target farmers for genetic resources management. The Journal of Agriculture and Environment Vol:13, Jun.2012, Page 5-8 DOI: http://dx.doi.org/10.3126/aej.v13i0.7581
Poly(4-Vinylpyridinium <i>P</i>-Toluenesulfonate) as a Polymer-Supported Catalyst for Hydrolysis of Tetrahydropyranyl Ethers (1998)

Abstract Poly(4-vinylpyridinium) p-toluenesulfonate is used as an immobilized catalyst for the hydrolysis of tetrahydropyranyl ethers. This method is mild, efficient and convenient, giving the corresponding products in good to excellent yields and purity.
Ecto-5′-nucleotidase and intestinal ion secretion by enteropathogenic Escherichia coli (2007)

Enteropathogenic Escherichia coli (EPEC) triggers a large release of adenosine triphosphate (ATP) from host intestinal cells and the extracellular ATP is broken down to adenosine diphosphate (ADP), AMP, and adenosine. Adenosine is a potent secretagogue in the small and large intestine. We suspected that ecto-5'-nucleotidase (CD73, an intestinal enzyme) was a critical enzyme involved in the conversion of AMP to adenosine and in the pathogenesis of EPEC diarrhea. We developed a nonradioactive method for measuring ecto-5'-nucleotidase in cultured T84 cell monolayers based on the detection of phosphate release from 5'-AMP. EPEC infection triggered a release of ecto-5'-nucleotidase from the cell surface into the supernatant medium. EPEC-induced 5'-nucleotidase release was not correlated with host cell death but instead with activation of phosphatidylinositol-specific phospholipase C (PI-PLC). Ecto-5'-nucleotidase was susceptible to inhibition by zinc acetate and by alpha,beta-methylene-adenosine diphosphate (alpha,beta-methylene-ADP). In the Ussing chamber, these inhibitors could reverse the chloride secretory responses triggered by 5'-AMP. In addition, alpha,beta-methylene-ADP and zinc blocked the ability of 5'-AMP to stimulate EPEC growth under nutrient-limited conditions in vitro. Ecto-5'-nucleotidase appears to be the major enzyme responsible for generation of adenosine from adenine nucleotides in the T84 cell line, and inhibitors of ecto-5'-nucleotidase, such as alpha,beta-methylene-ADP and zinc, might be useful for treatment of the watery diarrhea produced by EPEC infection.
Methods for the Analysis of High Throughput Sequencing Data (2014)

As the cost of short read DNA sequencing continues to drop, new experiments are being developed which allow scientists to probe subtle biological phenomenon on a genome wide scale. These new experiments bring new analytical challenges in the form of large amounts of noisy data. Here we present models and tools for the analysis of high throughput sequencing data.
Weighted Forensics Evidence Using Blockchain (2018)

When digital evidence is presented in front of a court of law, it is seldom associated with a scientific evaluation of its relevance, or significance. When experts are challenged about the validity of the digital evidence, the general answer is "yes, to a reasonable degree of scientific certainty". Which means all and nothing at the same time, since no scientific metric is volunteered. In this paper we aim at providing courts of law with weighted digital evidence. Each digital evidence is assigned with a confidence rating that eventually helps juries and magistrates in their endeavor. This paper presents a novel methodology in order to:
X-ray data booklet. Revision (1986)

A compilation of data is presented. Included are properties of the elements, electron binding energies, characteristic x-ray energies, fluorescence yields for K and L shells, Auger energies, energy levels for hydrogen-, helium-, and neonlike ions, scattering factors and mass absorption coefficients, and transmission bands of selected filters. Also included are selected reprints on scattering processes, x-ray sources, optics, x-ray detectors, and synchrotron radiation facilities. (WRF)
TIR Holographic lithography using Surface Relief Hologram Mask (2009)

내부전반사 홀로그래픽 노광 기술은 넓은 면적(6")을 아주 미세하게(<TEX>$0.35{\mu}m$</TEX>) 노광할 수 있는 차세대 광 노광 기술로서 평가받고 있다. 기존의 광 노광 기술은 <TEX>$1.5{\mu}m/6}$</TEX> 이상이 가능한 (LCD용 노광기)과 <TEX>$0.2{\mu}m/1.5"$</TEX> 이하(반도체용 노광기)의 패턴을 노광할 수 있도록 양분되어 발전하여 왔다. 이에 반하여 내부전반사 홀로그래픽 노광 기술은 일괄 노광 면적은 6"로 유지하면서 <TEX>$0.35{\mu}m$</TEX>에서 <TEX>$1.5{\mu}m$</TEX>의 사이의 패턴을 구현할 수 있는 특별한 능력을 갖고 있다. 이는 기존 광 노광 방식에서 반드시 필요로 하는 결상 광학계를 사용하지 않고 홀로그램 마스크를 사용하기 때문이다. 본 논문에서는 내부전반사 홀로그래픽 노광 기술의 핵심기술인 홀로그램 마스크를 표면 부조 홀로그램 형태로 구현할 수 있는 핵심 인자가 무엇인지를 분석하여 최적화 하는 방법에 대해 논하고, 이를 이용하여 노광한 미세패턴에 대한 결과를 실험적으로 평가하였다. Holographic lithography is one of the potential technologies for next generation lithography which can print large areas (6") as well as very fine patterns (<TEX>$0.35{\mu}m$</TEX>). Usually, photolithography has been developed with two target purposes. One was for LCD applications which require large areas (over 6") and micro pattern (over <TEX>$1.5{\mu}m$</TEX>) exposure. The other was for semiconductor applications which require small areas (1.5") and nano pattern (under <TEX>$0.2{\mu}m$</TEX>) exposure. However, holographic lithography can print fine patterns from <TEX>$0.35{\mu}m$</TEX> to <TEX>$1.5{\mu}m$</TEX> keeping the exposure area inside 6". This is one of the great advantages in order to realize high speed fine pattern photolithography. How? It is because holographic lithography is taking holographic optics instead of projection optics. A hologram mask is the key component of holographic optics, which can perform the same function as projection optics. In this paper, Surface-Relief TIR Hologram Mask technology is introduced, and enables more robust hologram masks than those previously reported that were formed in photopolymer recording materials. We describe the important parameters in the fabrication process and their optimization, and we evaluate the patterns printed from the surface-relief TIR hologram masks.
Criteria for the Classification of Osteoarthritis of the Knee and Hip (1987)

The Osteoarthritis (OA) Criteria Subcommittee of the American Rheumatism Association set out to develop (a) a classification of OA that includes recognised subsets; and (b) subsets of OA identified by a combination of clinical and laboratory features. For the purposes of classification, OA should be specified if of unknown origin (idiopathic, primary) or if related to a known medical condition or event (secondary). Clinical criteria for classification of idiopathic OA of the knee were developed through a multicentre study group involving 130 patients with OA and 107 comparison patients. Comparison diagnoses included rheumatoid arthritis (RA) and other painful conditions of the knee exclusive of referred or para-articular pain. Variables from the history, physical examination, laboratory test results and radiographs were used to develop sets of criteria that serve different investigative purposes: clinical examination (sensitivity 89%; specificity 88%); clinical examination and laboratory tests (sensitivity 88%; specificity 93%); clinical examination, laboratory tests and radiographs (sensitivity 94%; specificity 88%). In contrast to prior classification criteria, the proposed criteria utilise decision trees or algorithms. Clinical criteria for classification of idiopathic OA of the hip are under development. Comparison groups are comprised of patients with other rheumatic diseases (e.g. RA), periarticular pain (e.g. trochanteric bursitis) and referred pain (e.g low back pain). From a method of opinion sampling, OA of the hip may be suggested by a combination of clinical criteria including the following: age greater than 40 years, weight-bearing pain, pain relieved by sitting, antalgic gait, decreased painful range of motion, a normal erythrocyte sedimentation rate (ESR) and a negative rheumatoid factor test.
Gel transition studies on nonideal polymer networks using small amplitude oscillatory rheometry (1998)

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 D. J. Power, A. B. Rodd, L. Paterson, D. V. Boger; Gel transition studies on nonideal polymer networks using small amplitude oscillatory rheometry. J. Rheol. 1 September 1998; 42 (5): 1021–1037. https://doi.org/10.1122/1.550929 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
Commentary on the Social Scientistsʼ Views of the Neighborhood Health Center as a New Social Institution (1970)

Presented at a session sponsored by the Medical Care Section of the 97th Annual Meeting of the American Public Health Association, Philadelphia, Pa., November 1969. * Professor and Head, Department of Health Administration, School of Public Health, University of North Carolina at Chapel Hill.
RAPID: Prototyping control panel interfaces (1987)

RAPID is a design environment to support human factors specialists in designing user interfaces for small control panels. RAPID permits modeling of both the appearance and behavior of operator interfaces. Its main goal is to allow exploration of a greater number of design alternatives by decreasing the time and effort required to generate and evaluate those alternatives. It is a graphically-based system intended to be used by non-programmers. RAPID is implemented in Smalltalk-80.
MOS Si/Ge photodetectors (2006)

The Si metal-oxide-semiconductor structure can be used for light detection, and the dark current is significantly reduced with the oxide layer. With the photo excitation, the generated carriers can be collected by electrodes as photo current. By incorporating Ge, the metal-oxide-semiconductor photodetectors can increase the responsivity and extend the detection wavelength. The interband transitions in the SiGe quantum dots enhance the 820 nm infrared absorption and extend the detection range to 1550nm. The valence band offset between Si and SiGe forms discrete quantum states in the SiGe layers. Hence, metal-oxide-semiconductor SiGe/Si quantum dot (well) infrared photodetectors can be used to detect midand far- infrared using the intraband transitions. The Ge-on-insulator metal-oxide-semiconductor photodetectors can further increase the detection speed by reducing parasitic capacitance. The large work function metal (Pt) is used for the gate electrode to reduce the dark current. Moreover, the external mechanical strain can enhance the photo current with slight degradation of dark current.
Differentiated sympathetic neural control of the kidney (1996)

Anatomic and neurophysiological methods were used to identify functionally specific subgroups of renal sympathetic nerve fibers. The distribution of diameters of the predominating unmyelinated fibers showed a major mode at 1.1 microns and a minor mode at 1.6 microns. The conduction velocity was 2.10 +/- 0.10 m/s, consistent with unmyelinated C fibers. Analysis of strength-duration relationships during renal nerve stimulation showed that both rheobase and chronaxie values for renal blood flow were greater than those for urinary flow rate and were independent of stimulation frequency. This difference suggests a higher stimulation threshold (smaller diameter) for those renal nerve fibers involved in the renal blood flow response (renal vasoconstriction) compared with those for the urinary flow rate response (antidiuresis) to renal nerve stimulation. Single renal units that responded to preganglionic splanchnic nerve stimulation were studied. Those with spontaneous activity (88%) responded to stimulation of arterial baroreceptors, arterial and central chemoreceptors, and peripheral thermoreceptors, whereas those that lacked spontaneous activity (12%) responded only to stimulation of peripheral thermoreceptors (known to produce renal vasoconstriction). A minority population of single renal units has been identified that, although renal vasoconstrictor, does not exhibit other characteristic features of vasoconstrictor neurons (i.e., responsiveness to stimulation of arterial baroreceptors and arterial and central chemoreceptors). These findings suggest the existence of functionally specific subgroups of renal nerve fibers.
Automatic Tuning Of Proportional-Integral-Derivative (Pid) Controller Using Particle Swarm Optimization (Pso) Algorithm (2011)

The proportional-integral-derivative (PID) controllers are the most popular controllers used in industry because of their remarkable effectiveness, simplicity of implementation and broad applicability. However, manual tuning of these controllers is time consuming, tedious and generally lead to poor performance. This tuning which is application specific also deteriorates with time as a result of plant parameter changes. This paper presents an artificial intelligence (AI) method of particle swarm optimization (PSO) algorithm for tuning the optimal proportional-integral derivative (PID) controller parameters for industrial processes. This approach has superior features, including easy implementation, stable convergence characteristic and good computational efficiency over the conventional methods. Ziegler-Nichols, tuning method was applied in the PID tuning and results were compared with the PSO-Based PID for optimum control. Simulation results are presented to show that the PSO-Based optimized PID controller is capable of providing an improved closed-loop performance over the Ziegler-Nichols tuned PID controller Parameters. Compared to the heuristic PID tuning method of Ziegler-Nichols, the proposed method was more efficient in improving the step response characteristics such as, reducing the steady-states error; rise time, settling time and maximum overshoot in speed control of DC motor.
Comparison of electrode materials for the detection of rapid hydrogen peroxide fluctuations using background-subtracted fast scan cyclic voltammetry (2011)

Hydrogen peroxide (H(2)O(2)) is a critically important signaling molecule. Endogenous H(2)O(2) mediates diverse physiological processes both intra- and intercellularly; and enzymatically generated H(2)O(2) is a widely used reporter molecule at biosensors that rely on enzymes to detect non-electroactive species. However, the development and application of electroanalytical methods for the direct detection of this molecule has been challenging because the electron transfer kinetics for the irreversible oxidation of H(2)O(2) are slow. We comparatively characterize the electrochemical oxidation of H(2)O(2) on bare and Nafion(®)-coated platinum and carbon-fiber microdisc electrodes using fast-scan cyclic voltammetry (FSCV). Using a waveform ranging from +0.2 to +1.3 V at 400 V s(-1), the electrocatalytic properties of the platinum surface were not readily apparent, and the carbon-fiber microelectrode demonstrated greater sensitivity and selectivity toward H(2)O(2). Nafion(®)-coating further enhanced detection on carbon electrodes. These results confirm that platinum electrodes, with or without Nafion(®), will not work acceptably with this approach, and confirm the value of carbon-fiber microelectrodes relative to more traditionally used platinum electrodes in the direct detection of rapid H(2)O(2) fluctuations using FSCV.
A Kinematic CAD Tool for the Design and Control of a Robot Manipulator (1984)

The correct relationship between two connective joint coordi nates of a robot manipulator is defined by four link parame ters ; one being the joint variable and the other three the geometric values. The basis for all open-loop manipulator control is the relationship between the Cartesian coordinates of the end-effector and the joint coordinates; therefore, the fidelity of the Cartesian position and orientation of the end- effector to the real world depend on the accuracy of the four link parameters of each joint. In this paper, a linear analytic error model describes the six possible Cartesian errors and the four independent kinematic errors from which the Carte sian error envelopes due to any combination of four kinds of kinematic errors can be uniquely determined. From a design standpoint, this error model can be used as a guide to mini mize the open-loop kinematic errors of the robot manipulator. Finally, a new calibration technique based on this model has also been developed that can be used to correct the kinematic errors of the robot manipulator.
BP Network Optimization Based on Improved Genetic Algorithm (2012)

In view of the virtue and shortage of genetic algorithm and BP network, this paper proposes a new BP network training method based on improved genetic algorithm (IGA-BP). This algorithm uses hierarchical code, adaptive crossover and mutation, pruning similar chromosomes, dynamic supply new chromosomes and other operations, so the network structure and weight are optimized at the same time and the "premature" phenomenon is avoided. The simulation results show that the IGA-BP network architecture is simple, the convergence rate is quick, and has good approximation and generalization ability.
Point Arrays Having Compact, Nonredundant Autocorrelations (1971)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text Marcel J. E. Golay, "Point Arrays Having Compact, Nonredundant Autocorrelations," J. Opt. Soc. Am. 61, 272-273 (1971) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article