gebhart/patrepeval huggingface dataset:
Validity of a portable cardio-respiratory system to collect data in the home environment in patients with obstructive sleep apnea (2004)

®(LS) system were compared to that from traditional polysomnography (PSG) in a laboratory environment and then again in the home to ascertain (1) the degree of concordance between the two and (2) to verify whether or not reliable data could be collected outside the laboratory. Ten subjects were recorded for one night each during three different conditions, PSG in the lab (PSG), LS and PSG in the lab (LS-L), and LS at home (LS-H).Total sleep time (p=0.097), time in stage 1+2 sleep (p=0.245), time in stage 3+4 sleep (p=0.633), REM sleep time (p=0.157), and total awakenings (p=0.364) were not different between PSG and LS-L. No significant difference between the apnea/hypopnea index (AHI) as determined by PSG (28.2+21.1/hr) LS-L (30.8+16.3/hr) and the LS-H (27.3+21.4/hr.) was observed. Oximetry data were not significantly different between the two devices (mean: PSG, 93±5%; LS-L, 92±3%; and LS-H, 92±3%; p=0.41). There was a strong linear relationship between PSG and LS-H and PSG and LS-L for AHI (r=0.96; p 5/hr, sensitivity and specificity were both 100%; for an AHI>15/hr, they were 87.5% and 100%, respectively. Conclusions: In summary, a high degree of concordance between LS and traditional PSG was observed, suggesting that LS may be a viable option for the physicians to consider for home detection of OSA. (Sleep and Hypnosis 2004;6(2):74-81)
Environmental Stress Testing with Boundary-Scan (2002)

Environmental Stress Testing (EST) enhances product quality and reliability by detecting latent or marginal defects in a product. For EST to be effective, testing of a product must achieve a high fault coverage so that as many EST-induced defects can be detected. By utilizing Boundary-Scan (IEEE Std 1149.1-1990), EST can achieve a high fault coverage and at the same time, minimize test cost. The paper describes a complete infrastructure, both software and hardware, for using Boundary-Scan (B-S) in EST. In addition, the paper shows a simplified control mechanism to select individual circuit packs for Boundary-Scan testing. This control mechanism minimizes the number of wires required to drive the control interface and thus, the number of wires in the cable that connects a tester to the backplane of a system under test and across which Boundary-Scan tests are executed. Finally, the paper presents and discusses some study results for evaluating the effectiveness of monitored EST.
On the effect of discrete charges adsorbed at the interface on nonionic liquid film stability: charges in the film (2008)

The effect of discrete charges embedded inside a dielectric film on the surface of an ionic substrate is examined. The analytical solution for the potential distribution is presented in the cases of diluted and concentrated electrolyte solutions. The image-charge contribution to the film stability is derived for charges randomly distributed at one of the film boundaries. It is shown that the image-charge component of the disjoining pressure can dominate over the other types of surface forces either for very thick films or for film thicknesses less than or comparable to the average charge separation.
Analysis of semiconductor laser arrays with high-intensity uniformity (1988)

It is shown that an array with a highly uniform intensity distribution can be constructed. This decreases the spatial hole burning and makes stable, high-power operation easier. An estimate of the remaining spatial hole burning is derived and it is shown how its effects can be compensated for. It is considered that laser arrays which operate in the fundamental mode even at high-power levels can be designed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
An Introduction to Nonlinear Finite Element Analysis (2004)

Abstract This book presents the theory and computer implementation of the finite element method as applied to nonlinear problems of heat transfer and similar field problems, fluid mechanics (flows of incompressible fluids), and solid mechanics (elasticity, beams and plates). Both geometric as well as material nonlinearities are considered, and static and transient (that is, time-dependent) responses are studied. Although there exist a number of books on nonlinear finite elements that serve as good references for engineers who are familiar with the subject and wish to learn advanced topics or the latest developments, there is currently no book that is suitable as a textbook for a first course on nonlinear finite element analysis. This book fills the void in the market, providing a clear understanding of the concepts of nonlinear finite element analyses through detailed theoretical formulations and computer implementation steps, examples and exercises, in a tutorial, user-oriented style. In addition, the book is a useful reference for industrial engineers and scientists, and serves as a prelude to more advanced books on the subject.
ChemInform Abstract: Reactions of Perhalocarbons. Part 9. Conversion of Per(poly) fluoroalkyl Halides into the Corresponding Carboxylic Acids with a Redox System. (1991)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Presence and Chemical Composition of Glycoproteic Layer on Human Spermatozoa (1994)

Studies from electronic microscopy disclosed the presence of an electrodense stranded and branch-like electrodense layer that extends toward extracellular space. Chemical composition of this glycoproteic layer showed that protein and total sugar content is similar (0.98 microgram/microgram protein). As for the total sugar content of this glycoproteic constituent, sialic acid accounts for 40%, hexosamines 27%, and fucose 30%. Electrophoresis characterization of this constituent showed the presence of 6 different motility bands. Risen levels of sialic acid indicate the contribution of sialic residue in the net charge of the sperm membrane, its role during capacitation, and its possible participation in the formation of binding bridges between sperm membrane and ovum.
[Electromyographical study of the straight leg raising test in lumbar disc herniation]. (1983)

The straight leg raising test is one of the most reliable test for the diagnosis of the disc herniation. It is well known that the pain is produced by the increased tension of the affected root. However, the patient's response to the pain evoked by the straight leg raising test is not uniform. In some patients the leg is raised beyond the straight leg raising positive angle without resistance and some young patients show the tight hamstrings phenomenon. To elucidate these phenomena, the muscle action of erector spinae, gluteus maximus and biceps femoris evoked by this test was studied electromyographically. The results are as follows: 1) The muscle action patterns in the patients of disc herniation which are not observed in normal group are classified into four groups, namely LGB type (erector spinae, gluteus maximus and biceps femoris act), GB type (gluteus maximus and biceps femoris act), G type (gluteus maximus only acts), B type (biceps femoris only act). These abnormal muscle actions disappear under general anesthesia and are different from the actions which are recorded when the patients resist passive straight leg raising intentionally. 2) In the case of L4-5 intervertebral disc herniation mainly gluteus maximus acts as the resisting force against the passive straight leg raising. On the other hand, biceps femoris acts mainly in the case of L5-S1 disc herniation. 3) The group of younger age and less degenerated disc shows more resistance against straight leg raising and records the action potential of resisting muscles in earlier stage of the leg raising test.
Quantitative tear lysozyme assay: a new technique for transporting specimens. (1980)

We have developed a method for assaying the concentration of tear lysozyme using eluates of tear fluid collected on filter paper discs. Specimens can be stored and transported to remote laboratories for assay. We have shown that the 'indirect' or eluate method gives statistically comparable results to the 'direct' method using fresh, neat tear fluid.
Healing of prosthetic arterial grafts. (1990)

Numerous synthetic biomaterials have been developed as vascular substitutes. In vitro, ex vivo and in vivo studies have demonstrated that in animals, selected materials, i.e., Dacron and ePTFE (expanded polytetrafluoroethylene) grafts, are successfully incorporated in both the large and the small caliber host arteries through a process which is generally referred to as graft healing. Morphologically, this process consists of a series of complex events including fibrin deposition and degradation, monocyte-macrophage recruitment and flow-oriented cell-layer generation, this last event being the complete endothelialization of the arterial substitute. In contrast to experimental animals, the flow surface of synthetic vascular grafts remains unhealed in humans, particularly in the small caliber conduits. Healing in man consists of graft incorporation by the perigraft fibrous tissue response with a surface covered by more or less compacted, cross-linked fibrin. It is therefore obvious that: i) marked differences in graft healing exist between animals and man; and ii) the usual mechanisms of graft endothelialization are partially ineffective in man. In order to guarantee the patency of synthetic vascular grafts for human small artery bypass, new strategies and approaches have recently been attempted. In particular, the endothelial cell seeding approach has been successfully accomplished in animals and is being experimented in human clinical studies. The problems and results of this biological approach are outlined in this paper.
A Process to Implement an Artificial Neural Network and Association Rules Techniques to Improve Asset Performance and Energy Efficiency (2019)

In this paper, we address the problem of asset performance monitoring, with the intention of both detecting any potential reliability problem and predicting any loss of energy consumption efficiency. This is an important concern for many industries and utilities with very intensive capitalization in very long-lasting assets. To overcome this problem, in this paper we propose an approach to combine an Artificial Neural Network (ANN) with Data Mining (DM) tools, specifically with Association Rule (AR) Mining. The combination of these two techniques can now be done using software which can handle large volumes of data (big data), but the process still needs to ensure that the required amount of data will be available during the assets’ life cycle and that its quality is acceptable. The combination of these two techniques in the proposed sequence differs from previous works found in the literature, giving researchers new options to face the problem. Practical implementation of the proposed approach may lead to novel predictive maintenance models (emerging predictive analytics) that may detect with unprecedented precision any asset’s lack of performance and help manage assets’ O&M accordingly. The approach is illustrated using specific examples where asset performance monitoring is rather complex under normal operational conditions.
Synthesis of polyesters containing nucleic acid base derivatives as pending side chains (1986)

Abstract Preparations of four diol monomers containing nucleic acid bases and the corresponding model polymers of polynucleotides with linear polyester backbone and nucleic acid base derivative as pending side chains are described. N ‐(1′,3′‐Dihydroxy‐2′‐methyl‐2′‐propyl)‐2‐(thymin‐l‐yl)propionamide ( Ia , HMPTPA), N ‐(1′,3′‐dihydroxy‐2‐methyl‐2′‐propyl)‐2‐(uracil‐l‐yl)propionamide ( Ib , HMPUPA), and their isomers, N ‐(β,β′‐dihydroxyethyl)‐2‐(thynin‐1‐yl)propionamide ( IIa , HETPA) and N ‐(β,β′‐dihydroxyethyl)‐2‐(uracil‐1‐yl)propionamide ( IIb , HEUPA) were synthesized through the selective N ‐acylation of 2‐methyl‐2‐amino‐1,3‐propanediol and diethanolamine with 2‐(thymin‐1‐yl)propionic acid (TPA) and 2‐(uracil‐1‐yl)propionic acid (UPA), respectively, by the active amide‐benzotriazole method. Diol monomers I and II were polycondenzed with active amide of benzotriazole such as 1,1′‐(isophthaloyl)bisbenzotriazole (IPBBT) in the presence of triethylamine and in DMF at 60°C, giving polyesters containing thymine and uracil derivatives as the side group. Prior to polymer synthesis, an O ‐acylation of Ia using the active monoamide l‐benzoylbenzotriazole was carried out as a model compound study.
Development of an air-scour control system for membrane bioreactors (2011)

The thesis involves the development and implementation of a new and\n\n\t\t\t\t robust control system based on permeability trends but at the same time capable of\n\n\t\t\t\t reducing aeration proportionally to permeate flux. Permeability was made a key\n\n\t\t\t\t parameter for directly comparing temporary changes in membrane performance.\n\n\t\t\t\t Transmembrane pressure and flux were gathered every 10 seconds and permeability\n\n\t\t\t\t values were automatically calculated; different mathematical algorithms were applied\n\n\t\t\t\t for the signal filtering of on-line data. Short term and long term permeability trends\n\n\t\t\t\t were compared once a day, and a control action was applied proportionally to the short\n\n\t\t\t\t term/long term permeability ratio without exceeding the aeration flow recommended by\n\n\t\t\t\t the membrane suppliers.
REDUCING SEDIMENT PHOSPHORUS RELEASE RATES IN LONG LAKE THROUGH THE USE OF CALCIUM NITRATE (1984)

ABSTRACT The effect of injecting different dosage rates of calcium nitrate into the bottom sediments of Long Lake in New Brighton, Minn., was observed in a laboratory study. The purpose of the study was to determine the minimum dosage necessary to reduce phosphorus release rates from the sediments to satisfactory levels. The study included measurement of sediment phosphorus release rates under both aerobic and anaerobic conditions, and evaluated the effect of adding ferric chloride to the sediments along with the calcium nitrate. The addition of ferric chloride was included in the study to determine if the iron available in the sediment was adequate to sorb the PO4 −3when oxidized conditions were provided. The study concluded that at least for the short term (90 days), injection of calcium nitrate could eliminate virtually all phosphorus release from the sediments previously releasing phosphorus at a rate of 7 mg P/m2/day, and actually result in the sediments becoming a sink for phosphorus in the water column. The study also concluded that although the addition of iron enhanced the calcium nitrate treatment's effectiveness, similar results could be achieved by increasing the calcium nitrate dose slightly and not adding the iron, which was a more cost-effective alternative.
Privacy management for secure mobility (2006)

Anonymous Internet access has been researched extensively and many proposals exist for enhancing the privacy of users. However, there are vast amounts of legacy authentication systems that do not take the privacy of the users into consideration. Many networks use, for example, MAC address or IP address based authentication, despite of their limited security properties. These authentication systems hinder the possibility to use e.g. pseurandom MAC addresses for privacy protection. In this paper, we propose a privacy management system for layers below the transport layer in the IP stack. Our implementation allows the users to decide their privacy parameters depending on their current situation. The implementation uses the Host Identity Protocol to provide authenticated and secure seamless handovers for mobile nodes. The approach is also applicable to an IP stack without the Host Identity Protocol.
About re-membering: The stories of Nancy and Amy (2012)

This paper tells the stories of two girls from Hong Kong, one of whom was Nancy who shared the story of her late grandfather and how remembering their relationship continued to affect her life. Amy, who as a child lived at foster care, talked about the significant people in her life through a re-membering project. The application of the remembering practice was shared and discussed through these two unique stories and its implication for Chinese grief work.
A low-voltage low-power self-mixer for 3.1#x2013;5GHz non-coherent UWB receiver (2009)

A low-voltage low-power high-efficiency squarer circuit used as energy collector for 3.1-5 GHz non-coherent UWB applications. The squarer circuit is based on flipped voltage follower circuit, whose bandwidth is extended higher than 5 GHz by choosing device length and bias current properly. The proposed squarer circuit is implemented in 65 nm CMOS process and the transistor level circuit simulation shows that it consumes 1.2 mA current from 0.6 V power supply and that the equivalent conversion gain is 6.3 dB.
RTM angle gathers with Gaussian weighted time-lapse Poynting vectors and receiver wavefield reconstruction in forward time direction (2013)

Poynting vectors are very computationally attractive for RTM angle gathers. The vectors are composed of time derivatives and space derivatives. Considering the characteristics of seismic wavelet, when the values of dominant wavefields are large, both the two kinds of derivatives are near zero, which arouses the instability of Poynting vectors. A scheme called time-lapse Poynting vector (TPV) has been proposed to solve the problem, in which there is a time delay between the wavefields and the Poynting vectors used for describing the directions of them. This scheme could ensure that the Poynting vectors of the dominant wavefields are also large enough. Gaussian weighted function is also used for decreasing the noise in gathers. Moreover, since the Poynting vectors could be computed naturally in the propagation process, we use receiver wavefields reconstruction (RWR) in forward time direction to solve the storage and I/O problems caused by RTM imaging condition. The TPV need to store the wavefields or Poynting vectors during the time lapse, and the computation of Poynting vector in RWR could go simultaneously with modeling. So compare to source wavefield reconstruction (SWR), in which the TPV should have a time delay to the modeling, the combination of TPV and RWR is easier to perform and also requires less memory. The memory requirement could be further decreased by receiver wavefield reconstruction in target imaging region.
Combinatorial processes and dynamic programming (1960)

Abstract : The purpose of the paper is to discuss the application of dynamic programming techniques to a class of problems which for want of a better term are called combinatorial.
Measuring adherence and competence of dynamic therapists in the treatment of cocaine dependence. (1997)

This article presents the development of a new 82-item rating scale of therapist adherence and competence for supportive-expressive (SE) dynamic psychotherapy for the treatment of cocaine dependence. Sixty-four items are rated for adherence, appropriateness, and quality of prescribed interventions. As part of the pilot/training phase of the National Institute on Drug Abuse Collaborative Cocaine Treatment Study, two independent expert judges rated 32 audiotapes of SE therapy sessions with cocaine-dependent patients, 10 tapes of cognitive therapy (CT) sessions, and 10 tapes of individual drug counseling (IDC) sessions. Reliability was acceptable for adherence but poor for quality and appropriateness. SE therapists used more expressive (interpretative) techniques than did either CT therapists or IDC counselors, and they used more supportive techniques than did IDC counselors.
Tabby in a Baby Carriage (1995)

Tabby in a Baby Carriage Hell hath '10 fury like a scorned tabby.Faithful white wiskers protrude From beneath the pink baby bonnet.And Tabby peturbedly wriggles In a futile attempt to free her swaddled body.But No animal is safe In four year-old hands.Boy and cat.Desti nation: Hell and back.
Hierarchical Mobile Edge Computing Architecture Based on Context Awareness (2018)

Due to the recent developments in mobile network technology and the supply of mobile devices, services that require high computing power and fast access speed, such as machine learning and multimedia streaming, are attracting attention. Mobile Edge Computing (MEC) has emerged. MEC allows servers to be located close to users to efficiently handle these services and provides users with ultra-low latency content delivery and powerful computing services. However, there has been a lack of research into the architecture required to efficiently use the computing power and resources of MEC. So, this paper proposes hierarchical MEC architecture in which MEC servers (MECS) are arranged in a hierarchical scheme to provide users with rapid content delivery, high computing performance, and efficient use of server resources.
Deep learning for object detection under rainy conditions (2018)

Fast, robust and accurate object detection are required for autonomous driving. While the main technology used for obstacle detection and avoidance is RADAR and LIDAR, LIDAR is affected by rain and snow, while RADAR resolution is low due to its longer wavelength. Vision based object detection is widely adopted because it is cost-effective and have a wide field-of-view. Unfortunately, current object detectors are not designed for adverse weather conditions. The performance of existing vision-based object detection methods, e.g. Mobileye, drops significantly under rainy conditions. This motivates us to develop an object detector which is robust to heavy rain. Furthermore, object detection developed in this report can be used to supplement RADAR and improve accuracy.\n\nIn this project, the author aims to develop an object detection system which can provide high accuracy while under rainy conditions. This will be done by collecting a dataset with vehicles in rain scenes, and training a state-of-the-art deep learning model using this dataset. By adding these training data, fast, robust and accurate stereo object detection can be attained.\n\nOur results have showed that training deep learning models on rain scenes does indeed improve their accuracy in rainy situations, faring much better than simple rain removal via image sharpening. This technique is generalisable for training any deep learning model.
Influence of Divalent Cations on Inner‐Arm Mutants of Restriction Endonuclease <i>Eco</i>RI (1997)

To understand the functional role of the inner arm region of EcoRI for the interaction with its DNA substrate, we mutated each of the positively charged amino acid residues Lys130 and Arg131 to Ala or Glu. The resulting cleavage activities are only about tenfold reduced but DNA binding in the absence of divalent cations is totally disrupted for three of the mutants ([Ala130]EcoRI, [Glu130]EcoRI and [Glu131]EcoRI). The binding can be rescued by adding 1 mM Ca2+. This binding behaviour resembles that of the blunt end cutter EcoRV. Furthermore, the cleavage activity of the [Glu130]EcoRI is stimulated by Ca2+. Therefore, a second metal binding site is involved in [Glu130]EcoRI catalyzed DNA cleavage. Its location is postulated to be in the inner arm region at positions 133 and 135 presenting an Asp-Xaa-Asp motif typical for Ca2+ binding. A net positive charge at the tip of the inner arm due to the basic amino acids Lys130 and Arg131 in the wild-type enzyme or due to binding of a divalent cation in the mutants is important for DNA recognition by EcoRI. However, a direct phosphate contact providing an indirect readout is not observed. Implications of the binding and cleavage behaviour with regard to mechanistic differences between blunt end and sticky end cutters and a general catalytic mechanism of restriction enzymes are discussed.