gebhart/patrepeval huggingface dataset:
Sleep Apnea Screening by Autoregressive Models From a Single ECG Lead (2009)

This paper presents a method for obstructive sleep apnea (OSA) screening based on the electrocardiogram (ECG) recording during sleep. OSA is a common sleep disorder produced by repetitive occlusions in the upper airways and this phenomenon can usually be observed also in other peripheral systems such as the cardiovascular system. Then the extraction of ECG characteristics, such as the RR intervals and the area of the QRS complex, is useful to evaluate the sleep apnea in noninvasive way. In the presented analysis, 50 recordings coming from the apnea Physionet database were used; data were split into two sets, the training and the testing set, each of which was composed of 25 recordings. A bivariate time-varying autoregressive model (TVAM) was used to evaluate beat-by-beat power spectral densities for both the RR intervals and the QRS complex areas. Temporal and spectral features were changed on a minute-by-minute basis since apnea annotations where given with this resolution. The training set consisted of 4950 apneic and 7127 nonapneic minutes while the testing set had 4428 apneic and 7927 nonapneic minutes. The K-nearest neighbor (KNN) and neural networks (NN) supervised learning classifiers were employed to classify apnea and non apnea minutes. A sequential forward selection was used to select the best feature subset in a wrapper setting. With ten features the KNN algorithm reached an accuracy of 88%, sensitivity equal to 85%, and specificity up to 90%, while NN reached accuracy equal to 88%, sensitivity equal to 89% and specificity equal to 86%. In addition to the minute-by-minute classification, the results showed that the two classifiers are able to separate entirely (100%) the normal recordings from the apneic recordings. Finally, an additional database with eight recordings annotated as normal or apneic was used to test again the classifiers. Also in this new dataset, the results showed a complete separation between apneic and normal recordings.
Interaction of Sound with Fast Crack Propagation (1998)

The influence of ultrasounds on crack dynamics in brittle materials is experimentally studied by using both the natural sound emitted by the propagating crack and an artificially generated ultrasound burst. We show that, although the acoustic energy is only 5% of the energy needed to propagate the crack, the presence of sound waves in the specimen cannot be neglected because sound interacts with the crack tip and strongly modifies the fracture dynamics.
CHIME : service-oriented framework for adaptive web-based systems (2003)

In this paper we present our view on how the current development of knowledge engineering in the context of Semantic Web can contribute to the better applicability, reusability and sharability of adaptive web-based systems. We propose a service-oriented framework for adaptive web-based systems, where the main goal is to help the semantic enrichment of the information search and usage process and to allow for adaptive support of user activites. In other words, our aim is to provide flexible information access, presentation and update to a broad range of users (individual and groups) in a personalized way within the context of pursuing a user's goals and performing tasks. We take an ontological approach to enable a shared understanding of concepts throughout the system and to provide semantic relationships between the information resources and the user's\nknowledge of (or interest in) them. We argue that the future of adaptive web-based systems lies in the modularity of the architecture and the openess to interoperate with other applications or compontens. To achieve this we adopt the concept of the UPML framework for semantic web service integration. Our ideas are illustrated in the context of the Token2000 project for Cultural Heritage in Interactive Multimedia Environments (CHIME) and show how combining elaborate AI strategies with the simplicity of hypermedia interaction can result in more easily applicable knowledge-based systems, or in more reasoning enhanced adaptive hypermedia systems.
Simulating malicious emails to educate end users on-demand (2011)

Many organizations are very vulnerable to malicious emails. To protect end users from such, this paper discusses how a simulation exercise can be successfully conducted to educate vulnerable users on-demand. By simulating malicious emails and `catch' vulnerable users, the organization may reduce costs and time regarding mitigating the weakest link-the human being.
Initiation of switching in VO<sub>2</sub>coplanar devices (1971)

Thin films of VO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> have been formed at 400°C by reactive RF sputtering in an argon-oxygen atmosphere. Their resistivity changes by a factor of more than 100 at 68°C. Fabrication of coplanar devices has allowed measurements of the prebreakdown region and the breakdown parameters. When a voltage is applied between the electrodes, the internal temperature rises and the device switches to the "on" state. Threshold voltage and current are investigated versus ambient temperature. Below about 10°C, switching is a pure thermistor effect; above this point, application of voltage causes the device temperature to rise to the phase transition temperature, when the conductivity increases sharply. The IV characteristic in the prebreakdown region and the two different thermal breakdown phenomena are analyzed theoretically.
Bicyclic guanidine-catalyzed enantioselective phospha-Michael reaction: synthesis of chiral β-aminophosphine oxides and β-aminophosphines (2007)

Chiral bicyclic guanidine has been found to catalyze the phospha-Michael reactions of diaryl phosphine oxide to nitroalkenes with high enantioselectivities, offering a direct methodology to prepare chiral beta-aminophosphine oxides and beta-aminophosphines.
<title>One-step fixed-lag interacting multiple model (IMM) smoothing for alignment of asynchronous sensors</title> (1994)

An algorithm is presented for the on-line relative alignment of two 3D sensors (where a 3D sensor is one that measures range, bearing, and elevation) using common targets that are tracked by both sensors. The target data reported by the sensors are usually not time coincident and, consequently, the estimates from the tracking filters for the sensors will be at different times. Since the alignment algorithm requires time-coincident target data from the sensors, a one-step predictor is used to time translate the track estimates from one of the sensors to the times of the track estimates from the other sensor. A one-step fixed-lag smoothing algorithm is then used to improve the accuracy of the predicted estimate by processing the measurement from the stage one-step ahead. The time-coincident track estimates are passed to an alignment algorithm that estimates the alignment errors and then uses these estimates to compensate for the effects of the alignment errors in the multi-sensor data. For illustrative purposes, simulations will be used to compare the performances of an alignment algorithm based on the one-step predictor and one-step fixed lag smoother to one based solely on the one-step predictor.
Epoxy−Diamine Thermoset/Thermoplastic Blends. 2. Rheological Behavior before and after Phase Separation (1999)

The phase separation process in a thermoplastic-modified epoxy system was studied using rheological dynamic analysis (RDA) and differential scanning calorimetry (DSC). Transmission electronic microscopy (TEM) was used to get direct representation of morphologies at different times during the phase separation process. The selected thermoset system was bisphenol A diglycidyl ether (DGEBA) cured with 4,4‘-methylenebis[3-chloro,2,6-diethylaniline] (MCDEA) in the presence of various compositions of polyetherimide (PEI), 10−64 wt %. As rheology is a signature of connectivity, the rheological behavior at phase separation was found to be greatly dependent on the initial concentration of PEI. Experimental results showed that when PEI concentration was lower than 10−15 wt %, phase separation induced a rapid decrease of the viscosity. For concentrations close to the phase inversion composition, a rheological behavior characteristic of a bicontinuous morphology appeared with a strong dependence on frequency. When PEI concentration was higher than 30 wt %, phase separation led to a gradual increase in viscosity. A large interdependence between morphology and initial composition was exhibited. Modeling of the rheological behavior using kinetic parameters and the relationship between viscosity and mass average molar mass was in good agreement with the experimental results.
The dysmetabolic syndrome (2001)

The first unifying definition for the metabolic syndrome was proposed by WHO in 1998. In accordance to this, patients with type 2 diabetes mellitus or impaired glucose tolerance have the syndrome if they fulfil two of the criteria: hypertension, dyslipidaemia, obesity/abdominal obesity and microalbuminuria. Persons with normal glucose tolerance (NGT) should also be insulin resistant. About 40% of persons with impaired glucose tolerance (IGT) and 70% of patients with type 2 diabetes have features of the syndrome. Importantly, presence of the dysmetabolic syndrome is associated with reduced survival, particularly because of increased cardiovascular mortality. The dysmetabolic syndrome most likely results from interplay between several genes and an affluent environment. Compatible with the thrifty gene theory, common variants in genes regulating lipolysis, thermogenesis and glucose uptake in skeletal muscle account for a large part of such thrifty genes. However, hitherto unknown genes may still be identified by random gene approaches.
Venous Thromboembolism in the High-risk Trauma Patient (1997)

Although these patients were at increased risk for thromboembolic events, the overall incidence of DVT was still extremely low with no apparent PE deaths. In our patient population, aggressive screening and prophylactic IVC filters would not have benefited 95% of "high-risk" patients without DVT and would not have prevented any deaths. We could not identify any population, except perhaps venous injuries, where such expensive and potentially harmful maneuvers seemed justified. Our experience with DVT and PE does not support either aggressive screening or prophylactic IVC filters as the standards of care.
Highly conductive polymer composites from room-temperature ionic liquid cured epoxy resin: effect of interphase layer on percolation conductance (2012)

An ionic liquid type imidazolium catalyst enhanced the conductivity of epoxy-anhydride resin based electrical conductive adhesives (ECAs) by more than two orders of magnitude compared with common imidazole compounds. Percolation growth dynamics study combining with epoxy curing kinetics results indicates that the enhancement of conductivity was attributed to the higher percolation efficiency within ionic liquid catalyzed ECAs. An “interphase layer” model was proposed to explain the percolation mechanism in the thermoset based conductive composite. The present work highlights the importance of cross-linking the polymer matrix with filler interconnections, and provides practical guidance on the control over percolation dynamics in conductive composites in order to achieve enhanced percolation conductivity.
Compiling Data Dependent Control Flow on SIMD GPUs (2004)

Current Graphic Processing Units (GPUs) (circa. 2003/2004) have programmable vertex and fragment units. Often these units are implemented as SIMD processors employing parallel pipelines. Data dependent conditional execution on SIMD architectures implemented using processor idling is inefficient. I propose a multi-pass approach based on conditional streams which allows dynamic load balancing of the fragment units of the GPU and better theoretical performance on programs using data dependent conditionals and loops. The proposed system can be used to turn the fragment unit of a SIMD GPU into a stream processor with data dependent control flow.
N-methyl-D-aspartate receptor antagonist APV blocks acquisition but not expression of fear conditioning. (1991)

The role of N-methyl-D-aspartate (NMDA) receptors in Pavlovian fear conditioning was examined using the NMDA antagonist DL-2-amino-5-phosphonovaleric acid (APV). Either APV (5 micrograms/rat) or saline was administered before the training phase, the testing phase, or both. APV completely blocked acquisition but not expression of fear conditioning. The L enantiomer of APV did not affect the acquisition of conditional fear. To separate encoding from consolidation processes, APV was administered either before or immediately after the footshock unconditional stimulus (US) during the training phase. The results indicate that APV must be present during the US to produce its effects on fear conditioning. The behavioral effect of the drug is not due to analgesic action because APV did not alter pain sensitivity. The data suggest that NMDA receptors are critical for the acquisition but not expression of fear conditioning. These effects on fear conditioning are parallel to the in vitro effects of APV on the acquisition but not expression of long-term potentiation (LTP) and suggest that endogenously generated NMDA-dependent LTP participates in the neural plasticity underlying fear conditioning.
Parasitic-free gate: A protected switch between idle and entangled states (2022)

We propose a gate to switch superconducting qubit pairs in and out of a two-body interaction. This gate uses cross resonance driving on a tunable circuit with adjusted parameters and without accumulating residual ZZ interaction for idle and interacting qubits. It is imperative that this gate does not spread errors through the quantum register. Our detailed theoretical results show that these error-free modes do not necessarily require largely tunable circuits, such as magnetic modulation of qubits or couplers. We obtain the operational gate on weakly tuneable circuits as well and show that switching between them is remarkably fast.
Mothers as a vulnerable group of women subjected to violence (2014)

Violence against women is a social problem that affects all groups of women in society. Although violence is a general problem in this sense, some groups of women are more vulnerable to violence an ...
Electron capture dissociation of highly charged proteolytic peptides from Lys N, Lys C and Glu C digestion (2010)

Electron capture dissociation (ECD), which provides more extensive sequence coverage compared to "slow heating" tandem mass spectrometric techniques such as collision-activated dissociation, constitutes a promising method for de novo sequencing of peptides and proteins. We have previously examined and characterized the ECD fragmentation behavior of small to medium size doubly and triply protonated peptides from trypsin, chymotrypsin and Glu C digestion. Here, we extend that work to longer, more highly charged proteolytic peptides from Lys N, Lys C and Glu C digestion to compare the extent of fragmentation obtained from each type of proteolytically derived peptide and also to examine the effectiveness of each enzyme in terms of peptide sequence coverage in ECD. Our findings demonstrate that medium size peptides (i.e., 1600-4800 Da) at high charge states (+3 to +6) exhibit very similar ECD fragmentation behavior independent of which proteolytic enzyme was used for digestion. The average peptide sequence coverage we obtained for Lys N and Glu C generated peptides was 81%, and for Lys C proteolytic peptides we obtained an average sequence coverage of 80%. Most of the peptides we examined, 82%, showed high ECD sequence coverage ranging from 70-100%, whereas 13% of the peptides showed a moderate sequence coverage ranging from 50-60%. Only 5% of the peptides showed an average sequence coverage below 50%. Furthermore, the extent of fragmentation, measured by the total number of backbone c- and z-type product ions, was very similar for Lys N, Lys C and Glu C derived peptides.
Indoor Navigation and Localization for Visually impaired people Using Weighted Topological Map (2009)

<b>Problem Statement:</b> Image base methods are a new approach for solving problems of navigations for visually impaired people. <b>Approach:</b> The study introduced a new approach of an electronic cane for blind people using the environment represented as a weighted topological graph instead, each node contains images taken at some poses in the work space, instead of building a metric (3D) model of the environment. <b>Results:</b> By computing weights between already stored images and the real scene of the environment and take some considerations like sessions. The system gives advices for the blind person to select the right direction in indoor navigate depending on weights and session, where a mono camera cane-held gives information in front of the visually impaired person. <b>Conclusion:</b> A cane that has the ability of getting SIFT feature for an object or site from a sequence of live images using the suggested approach is very satisfactory, The session and weight, speed up the system and gives a wide range indoor navigation and may be used to outdoor. Experimental results demonstrated a good performance of proposed method, the identification of different scenes to the blind person done by constructing the weighted visual environment graph to the system. The proposed scheme is using SIFT features to represent the objects and the sites.
A 2&#8212;18-GHz monolithic distributed amplifier using dual-gate GaAs FET's (1984)

This paper describes a 2-18-GHz monolithic distributed amplifier with over 6-dB gain, ± 0.5-dB gain flatness, and less than 2.0:1 VSWR. Measured noise figure is below 7.5 dB, and power output capability is greater than 17 dBm, The amplifier is designed with dual-gate GaAs FET's instead of single-gate FET's for maximum gain over the design bandwidth. Cascaded amplifier performance will also be presented.
Using Web Matrix (2003)

In This Chapter Learn How to Install Web Matrix Learn How to Install the Microsoft Mobile Internet Toolkit Discover the Web Matrix IDE Elements Learn How to Use FTP Workspaces Create Pseudo-Project-Oriented Workspaces Create Projectless Workspaces Discover the Online Component Gallery Learn About the Web Matrix File Types KeywordsService PackVisual StudioQuery WindowProject FileNetwork DriveThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
A novel, small endoglucanase gene, egl5, from Trichoderma reesei isolated by expression in yeast (1994)

International audience
An Activin Receptor IA/Activin-Like Kinase-2 (R206H) Mutation in Fibrodysplasia Ossificans Progressiva (2013)

Fibrodysplasia ossificans progressiva (FOP) is an exceptionally rare genetic disease that is characterised by congenital malformations of the great toes and progressive heterotopic ossification (HO) in specific anatomical areas. This disease is caused by a mutation in activin receptor IA/activin-like kinase-2 (ACVR1/ALK2). A Mexican family with one member affected by FOP was studied. The patient is a 19-year-old female who first presented with symptoms of FOP at 8 years old; she developed spontaneous and painful swelling of the right scapular area accompanied by functional limitation of movement. Mutation analysis was performed in which genomic DNA as PCR amplified using primers flanking exons 4 and 6, and PCR products were digested with Cac8I and HphI restriction enzymes. The most informative results were obtained with the exon 4 flanking primers and the Cac8I restriction enzyme, which generated a 253 bp product that carries the ACVR1 617G>A mutation, which causes an amino acid substitution of histidine for arginine at position 206 of the glycine-serine (GS) domain, and its mutation results in the dysregulation of bone morphogenetic protein (BMP) signalling that causes FOP.
A high-performance monolithic IF amplifier incorporating electronic gain control (1968)

A direct-coupled monolithic IF amplifier that incorporates an active gain control stage and exhibits a power gain of 50 dB and an AGC range of 60 dB at 50 MHz is described. This circuit has negligible change in either input or output admittance, and has excellent signal linearity over the full range of gain control. Experimental and theoretical analyses are made of the large signal response, stability, available gain, and noise behavior of the circuit. An application to color television is discussed in which the functions of the 45-MHz IF amplifier and the dc-AGC circuitry are fabricated on a single die.
The Early Correspondence of Jabez Bunting (1972)

I take the liberty of addressing you on a subject which appears to myself and friends of very great importance. I shall impartially state the case, and leave you to judge of the propriety of laying it before your brethren in town or calling together the Committee of Priviledges. On Monday the 11th instant a meeting of reformers was held at Newcastle for the purpose of expressing their opinion on the Manchester Murders as they call them. 50 or 60,000 people attended, amongst whom were a great number of our people, several of our Leaders and some of our Local Preachers. One of the latter William H. Stephenson, a young man who teaches a school at Burton Colliery in this Circuit went upon the hustings and made a speech, condemning in strong terms the conduct of the Manchester magistrates: this has given very great offence to most of the Travelling Preachers and respectable friends in this neighbourhood and to none more than myself, and I have been advised at all events to put him off the plan . I have had repeated interviews with him and advised him as a friend on public grounds to give up his plan . He replied that he would never give up his plan until he was compelld, that he would be tried by his peers and did not fear the result, that if they expell him he will publish the cause to the world, that I had better let it quietly pass as three quarters of our people are radical reformers, that if he be tried so must hundreds more, that he only went to plead the cause of suffering humanity, that he believed it his duty to go, that he never joined himself to the reformers, nor attended any of their private meetings. I fixed on Friday the 22nd as the day of his trial.
Characteristics of Oxidation Reaction of Rare-earth Chlorides for Precipitation in LiCl-KCl Molten Salt by Oxygen Sparging (2006)

The precipitation reaction of some rare earth chlorides (La/Ce/Nd/GdCl3) in a LiCl-KCl molten salt has been carried out by using the oxygen sparging method. In this study, regardless of the oxygen sparging time and the molten salt temperature, oxychlorides (REOCl) for LaCl3, NdCl3 and GdCl3, and an oxide (REO2) for CeCl3 are formed as a precipitate. The conversion of rare-earth chlorides into insoluble precipitates was described by using a conversion ratio. The conversion ratio increased exponentially with the oxygen sparging time and finally showed asymptotic value at 1,023 K of the molten salt temperature condition. The conversion ratios of LaCl3, NdCl3 and GdCl3 were increased with the molten salt temperature, however, even though the conversion ratio was increased from 0.660 to 0.995 with increasing molten salt temperature from 823 to 923 K at 60 min of a sparging time, the values of the conversion ratio of CeCl3 were nearly constant (over 0.999) with the molten salt temperature. As a result of the thermogravimetric analysis of the precipitates (oxychlorides), about 11–13% of a weight loss happened in the case of LaOCl, NdOCl and GdOCl, and all the oxychlorides were converted to their oxides i.e. La2O3, Nd2O3 and Gd2O3 at a high temperature and oxygen atmosphere.