gebhart/patrepeval huggingface dataset:
Designing a distributed multimedia synchronization scheduler (1997)

Distributed multimedia applications need an effective synchronization strategy to deal with the temporal disturbances introduced into the data streams by the transport and operating systems. An essential part of this strategy is scheduling-i.e. determining optimal times for the retrieval of data from the data servers. The CITR News-On-Demand project prototype currently uses a centralized synchronization system which lacks effective high-level scheduling. This paper looks at how to add this functionality without seriously disturbing the components already in place. The proposed solution is a distributed synchronization scheduler designed and implemented in a way which makes use of the current prototype's components.
Evolutionary morphology of the caecilian urogenital system. IV. The cloaca (1972)

Abstract The gross and microscopic anatomy of male and female cloacae of caecilians (Amphibia: Apoda or Gymnophiona) is described and analyzed in terms of structure and function. The arrangement of musculature and cloacal accessory structures is species‐specific in males. Contraction of certain cloacal and body wall musculature facilitates eversion of the male cloaca for use as an intromittent organ. The cloacae of females show less marked morphological differences from species to species, and are modified as receptors of male phallodea.
Enhanced collection efficiencies and performance of interband cascade structures for narrow bandgap semiconductor thermophotovoltaic devices (2018)

We report on a comparative study of narrow-bandgap (∼0.2 eV at 300 K) thermophotovoltaic (TPV) devices with InAs/GaSb type-II superlattice absorbers. By comparing the characteristics of three narrow bandgap TPV structures with a single absorber or multiple discrete absorbers, it is clearly demonstrated that the device performance of a conventional single-absorber TPV cell is limited mainly by the small collection efficiency associated with a relatively short diffusion length (1.5 μm at 300 K). Furthermore, this study revealed that multi-stage interband cascade (IC) TPV structures with thin individual absorbers can circumvent the diffusion length limitation and are capable of achieving a collection efficiency approaching 100% for photo-generated carriers. Additionally, the open-circuit voltage, the fill factor, the output power, and the power conversion efficiency can be significantly increased in IC TPV devices compared to the conventional single-absorber TPV structure. These results have further validated the potential and advantages of narrow bandgap IC structures for TPV cells.
A New Indicator for Real-time Leak Detection in Water Distribution Networks: Design and Simulation Validation (2014)

This paper proposes a new algorithm for real-time leak detection in a water distribution network using real-time pressure measurements only. In particular, we newly introduce a Head Loss Ratio (HLR), a ratio of two differences of pressure measurements, as an indicator for burst leaks in a water distribution network. A detection algorithm based on HLRs is then developed. A theoretical justification is provided for a limited class of water distribution networks for the proposed algorithm. Simulation results are also given to demonstrate that the proposed algorithm can be successfully applied to a wider class of water distribution networks.
Effects of Noise on the Information Content of Remote Sensing Images (2003)

Abstract Remote sensing images are used to estimate certain geophysical parameters or detect the presence or extent of geophysical phenomena. The amount of information extracted from remotely sensed data is dependent upon the type of sensor, the portion of the electromagnetic spectrum used, the quality of the data recorded, and certain physical limitations. There are other limiting factors involved in processing the data once they have been collected. In addition to noise added inherently by the sensor, image processing techniques also corrupt the image with noise in varying degrees. One of the measures to quantify information content is classification accuracy. Although the image information content reduces as the image is corrupted with noise, in certain applications there may not be as great a loss as one might expect. This can be attributed to the fact that although the value of a pixel may change as a result of corruption due to noise, the same pixel may in most cases, be correctly classified. Our research reveals that this loss in information is exponentially related to the variance of the added noise. The model is seen to be applicable for Landsat TM as well as multi‐look and single‐look SIR‐C imagery. We observe that the relationship is independent of the type of noise (Gaussian, Gamma, or exponential). However, the rate of information loss increases with increasing correlation distance in the case of spatially correlated noise. The rate of information loss also increases with the number of classes chosen for classifying the scene. Using our mathematical model for information content as a function of noise variance, one can specify an “allowable” signal‐to‐noise ratio for a specific application.
A new high-resolution Time-to-Digital Converter concept based on a 128 stage 0.35 &#x00B5;m CMOS delay generator (2009)

A stable, sub-nanosecond delay generator is presented. Integrated in conventional low-cost 0.35 mum CMOS technology, the circuit consists of a mirror delay line driven by a dual-loop Delay-Locked Loop (DLL) and a 128-deep analog frame memory. As a practical application of the delay generator, a completely new, high-resolution, Time-to-Digital Converter (TDC) concept is implemented on-chip. A simulated 20 ps resolution is achieved. A delay stability self-characterization mode was also integrated and showed a 1 GHz sine wave sampled at 8 Gs/s.
Improvement of rare-gas solid moderators by using conical geometry (1990)

A slow positron beam with narrow energy spread can be obtained by moderating the β+ decay of a radioactive source. We report here the improvement in the efficiency of the rare-gas solid positron moderators by using a different geometry. The efficiency for slow positrons, ε, was measured for the cylindrical and the cone configurations of the moderator with the latter yielding ε of (4.6±0.2)×10−3 for solid neon deposited on an encapsulated radioactive 22Na source deposited on a 5 μm Cu98/Be2 window. No corrections were applied for the attenuation caused by the window. The ε for the conical configuration is (2.7 ± 0.2) times higher than that for the cylindrical configuration. Other rare-gas solids (e.g., Ar, Xe, Kr) yielded lower ε as compared to that for the solid neon in agreement with the earlier measured efficiencies of Mills and Gullikson [Appl. Phys. Lett. 49, 1121 &lt;usb&gt;(1986)].
Foetus Papyraceus (1948)

say, 30 seconds.-I am, etc., London.
N-stage planar optical permutation network (1987)

This paper describes the construction of a permutation network which is advantageous for optical switching. The switching architecture is planar and does not require optical path crossovers between crosspoints. The network can be partitioned if necessary to ease fabrication difficulties. An algorithm is given to set the binary cells in the network to achieve any specified permutation, and it is shown that no planar N x N network can achieve such rearrangeability with fewer than the N(N - l)/2 crosspoints used here.
High glucose and insulin promote<i>O-</i>GlcNAc modification of proteins, including α-tubulin (2003)

Increased flux through the hexosamine biosynthesis pathway has been implicated in the development of glucose-induced insulin resistance and may promote the modification of certain proteins with O-linked N-acetylglucosamine ( O-GlcNAc). L6 myotubes (a model of skeletal muscle) were incubated for 18 h in 5 or 25 mM glucose with or without 10 nM insulin. As assessed by immunoblotting with an O-GlcNAc-specific antibody, high glucose and/or insulin enhanced O-GlcNAcylation of numerous proteins, including the transcription factor Sp1, a known substrate for this modification. To identify novel proteins that may be O-GlcNAc modified in a glucose concentration/insulin-responsive manner, total cell membranes were separated by one- or two-dimensional gel electrophoresis. Selected O-GlcNAcylated proteins were identified by mass spectrometry (MS) analysis. MS sequencing of tryptic peptides identified member(s) of the heat shock protein 70 (HSP70) family and rat α-tubulin. Immunoprecipitation/immunoblot studies demonstrated several HSP70 isoforms and/or posttranslational modifications, some with selectively enhanced O-GlcNAcylation following exposure to high glucose plus insulin. In conclusion, in L6 myotubes, Sp1, membrane-associated HSP70, and α-tubulin are O-GlcNAcylated; the modification is markedly enhanced by sustained increased glucose flux.
Wound Dressings and Comparative Effectiveness Data (2013)

<b>Significance:</b> Injury to the skin provides a unique challenge, as wound healing is a complex and intricate process. Acute wounds have the potential to move from the acute wound to chronic wounds, requiring the physician to have a thorough understanding of outside interventions to bring these wounds back into the healing cascade. <b>Recent Advances:</b> The development of new and effective interventions in wound care remains an area of intense research. Negative pressure wound therapy has undoubtedly changed wound care from this point forward and has proven beneficial for a variety of wounds. Hydroconductive dressings are another category that is emerging with studies underway. Other modalities such as hyperbaric oxygen, growth factors, biologic dressings, skin substitutes, and regenerative materials have also proven efficacious in advancing the wound-healing process through a variety of mechanisms. <b>Critical Issues:</b> There is an overwhelming amount of wound dressings available in the market. This implies the lack of full understanding of wound care and management. The point of using advanced dressings is to improve upon specific wound characteristics to bring it as close to "ideal" as possible. It is only after properly assessing the wound characteristics and obtaining knowledge about available products that the "ideal" dressing may be chosen. <b>Future Directions:</b> The future of wound healing at this point remains unknown. Few high-quality, randomized controlled trials evaluating wound dressings exist and do not clearly demonstrate superiority of many materials or categories. Comparative effectiveness research can be used as a tool to evaluate topical therapy for wound care moving into the future. Until further data emerge, education on the available products and logical clinical thought must prevail.
El nuevo contrato laboral especial del servicio del hogar familiar (2012)

El articulo analiza los aspectos mas significativos del nuevo regimen juridico del contrato laboral especial del servicio domestico regulado en el Real Decreto 1620/2011, de 14 de noviembre, y valora en que medida la reforma supone una progresiva equiparacion de esta relacion laboral especial con la comun
Towards antiviral oligopeptide vaccines. (1984)

Synthetic peptides, representing part of the viral proteins, can be used as effective vaccines. Using this approach, it is even possible to raise neutralizing antibodies against domains which are not immunogenic in the native protein. Further research is needed to develop the adequate protein carriers and adjuvants. Anticipation of the antigenic drift of viruses is also essential to ensure the efficacy of vaccines.
Enzyme replacement therapy for pancreatic insufficiency: present and future (2011)

Pancreatic enzyme replacement therapy is currently the mainstay of treatment for nutrient malabsorption secondary to pancreatic insufficiency. This treatment is safe and has few side effects. Data demonstrate efficacy in reducing steatorrhea and fat malabsorption. Effective therapy has been limited by the ability to replicate the physiologic process of enzyme delivery to the appropriate site, in general the duodenum, at the appropriate time. The challenges include enzyme destruction in the stomach, lack of adequate mixing with the chyme in the duodenum, and failing to deliver and activate at the appropriate time. Treatment is begun when clinically significant malabsorption occurs resulting in steatorrhea and weight loss. Treatment failure is addressed in a sequential fashion. Current research is aimed at studying new enzymes and delivery systems to improve the efficiency of action in the duodenum along with developing better means to monitor therapy.
Urinary symptoms, sexual intercourse and significant bacteriuria in male patients attending STD clinics. (1996)

Bacteriuria does not behave as an STD but SI may be a factor in acquiring bacteriuria. Dysuria with or without urethral discharge is the most predictive symptom of bacteriuria. Pyuria has a high sensitivity for predicting bacteriuria among males.
A phase/frequency-locked controller for stepping servo control systems (1992)

A phase-controlled oscillator (PCO), composed of an adaptive digital-pumped controller (ADPC) and a voltage-controlled oscillator (VCO), is proposed as a novel stepping motor driver. A phase-locked stepping servomechanism (PLSS) is established and the PCO can provide an accurate and stable pulse train to adaptively drive the stepping motor. System modeling, analysis, stability investigation, design, and implementation are all conducted. Computer simulation and experimental results indicate that the performance of the PLSS is close to the theoretical prediction. Some speed responses for 40-1000 r/min are examined in the real PLSS. A speed regulation of +or-0.15 r/min was achieved. An adaptive line density selector can be used to improve the system performance.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Pyridazino(4,5-b)carbazole: Synthese et etude des spectres de resonance magnetique nucleaire. (1984)

The acid anhydrides (5-7) were obtained by treatment of the corresponding 2, 3-carbazoledicarboxylic acids (2-4) with acetic anhydride. Friedel-Crafts reaction of these anhydrides with benzene or toluene gave either 3-aroylcarbazole-2-carboxylic acids (8-11) or 6, 7-phtaloylcar bazole (19-21) according to the reaction conditions. Treatment of the acids (8-11) with hydrazine hydrate gave 3, 4-dihydro-4-oxo-pyridazino [4, 5-b] carbazoles (14-17). When the anhydrides (5-7) were treated with hydrazine hydrate, the 1, 2, 3, 4-tetrahydropyridazino [4, 5-b]-carbazoles (26-28) were obtained. LiAlH4 reduction of a diester (1) gave the corresponding 2, 3-dihydroxymethyl derivative (23). When the latter compound was oxydized, the corresponding lactone (25) was resulted. The structure of all compounds was elucidated by means of elemental analyses, infrared (IR) and nuclear magnetic resonance (NMR) spectra.
A fast collision detection method for clothing animation (2012)

Currently efficient collision detection is one of the major performance bottlenecks in real-time clothing animation, especially when the models have thousands of or more vertices. To further improve the performance of collision process, this paper presents a fast collision detection scheme, called local collision impact region. In such a clothing animation system, the clothing often collides with human body in large regions at the initial state of each key frame, which evokes a time-consuming process to detect and to respond to the collisions. When a cloth vertex collides with mannequin, its neighboring vertices more often than not have collided. Therefore, we directly adjust these neighboring vertices right after the vertex collision response is carried out. This approach can accelerate the collision detection between clothing and mannequin and significantly reduce the iterations of generating key frames in clothing animation. The overall speed is nearly three times as fast as the conventional methods.
Studies of the Biological Effect and Degradation of Glucagon in the Rat Perifused Isolated Adipose Cell<sup>*</sup> (1983)

The time relationships between glucagon-stimulated lipolysis and hormonal degradation are incompletely understood. These studies were designed to examine the rat adipocyte response to hormonal stimulation in the perifusion system. The perifused isolated adipocyte responded to glucagon concentrations as low as 10(-11) M, with maximum lipolysis at 10(-7) M glucagon. The lipolytic response corresponded in timing with exposure to glucagon. At lower concentrations, there was an appreciable lag between exposure to hormone and initiation of lipolytic response. Termination of response occurred with removal of hormone from the perifusion medium. The percentage of undegraded glucagon in the perifusate fractions (as determined by precipitability with trichloroacetic acid) remained above 80% until the point where free hormone was cleared from the system and lipolysis had ceased. The adipocytes continued to release both intact and degraded glucagon into the medium, the latter increasing with time. Release showed first order kinetics for both undegraded and degraded glucagon, with rate constants of 0.0656 +/- 0.0053 and 0.0716 +/- 0.0073 min-1, respectively. These perifusion studies provide a mechanism for assessing the time relationship between glucagon stimulation of lipolysis and its removal and degradation. Furthermore, the increased sensitivity of the fat cell to glucagon demonstrated herein with perifusion suggests that the importance of glucagon as a physiological regulator of lipolysis may have been underestimated by earlier researchers.
Isolation of two cDNA sequences which encode cytotoxic cell proteases (1988)

Two cDNAs which cross-hybridized with cytotoxic cell protease genes were identified in a library generated from a cytotoxic T cell line. Sequence analysis revealed that the two new members of the family contained the three catalytic triad residues which characterize the active sites of serine proteases. A comparison of the protein sequences revealed not only a high degree of homology but also the conservation of some unusual structural features. These include the lack of a disulphide bond which spans the active site serine, the presence of a signal sequence and the inference of a dipeptide activation sequence.
Illustrated and descriptive catalogue of physical apparatus including : apparatus for teaching... (1924)

1 vol. (532 p.-2 pl. dépl.) : ill. en noir et en coul. ; 28 cm
Effect of trehalose on survival of Bradyrhizobium japonicum during desiccation (2003)

Although it may not be practical to use trehalose as a carbon source in inoculant production, it may be possible to engineer greater trehalose accumulation in rhizobia. Trehalose concentration in cells should be a useful predictor of survival during desiccation.
A reliable and programmable acoustofluidic pump powered by oscillating sharp-edge structures (2014)

We present a programmable acoustofluidic pump that utilizes the acoustic streaming effects generated by the oscillation of tilted sharp-edge structures. This sharp-edge-based acoustofluidic pump is capable of generating stable flow rates as high as 8 μL min(-1) (~76 Pa of pumping pressure), and it can tune flow rates across a wide range (nanoliters to microliters per minute). Along with its ability to reliably produce stable and tunable flow rates, the acoustofluidic pump is easy to operate and requires minimum hardware, showing great potential for a variety of applications.
An Analysis of the Privacy Threat in Vehicular Ad Hoc Networks due to Radio Frequency Fingerprinting (2017)

In Vehicular Ad Hoc Networks (VANETs) used in the road transportation sector, privacy risks may arise because vehicles could be tracked on the basis of the information transmitted by the Vehicle to Vehicle (V2V) and Vehicle to Infrastructure (V2I) communications implemented with the Dedicated Short Range Communications (DSRC) standards operating at 5.9 GHz. Various techniques have been proposed in the literature to mitigate these privacy risks including the use of pseudonym schemes, but they are mostly focused on data anonymization at the network and application layer. At the physical layer, the capability to accurately identify and fingerprint wireless devices through their radio frequency (RF) emissions has been demonstrated in the literature. This capability may generate a privacy threat because vehicles can be tracked using the RF emissions of their DSRC devices. This paper investigates the privacy risks related to RF fingerprinting to determine if privacy breaches are feasible in practice. In particular, this paper analyzes the tracking accuracy in challenging RF environments with high attenuation and fading.
On-chip millimeter wave Rat-race Hybrid and Marchand Balun in IBM 0.13um BiCMOS technology (2008)

On-chip 60GHz Rat-race Hybrid and Marchand Balun have been designed and fabricated in 0.13um BiCMOS technology. Good simulation and hardware correlations have been observed for both devices. The measured hardware results of both devices are summarized in table 1 for direct comparisons. Marchand Balun has better performance than Rat-race Hybrid almost in all aspects. The central dilemma of Rat-race Hybrid is the phase performance. It deviates from 180 degree drastically as frequency increases or decrease. Hence, the bandwidth of the Rat-race Hybrid is not only limited by the insertion loss but also the phase performance. In comparison, Marchand Balun has good amplitude and phase performance for over 30GHz of range, which makes Marchand Balun the preferred choice among these two devices.
[Study on the impacts of different time of moxibustion on regulating lipid effects of hyperlipidemia]. (2012)

Moxibustion can effectively and safely reduce the blood lipid level of hyperlipidemia patients, the decreasing degree of lipid is different with different time of moxibustion after treatment, and the decreasing degree in moxibustion 30 min group is significantly better than that in moxibustion 10 min group.
Introduction: An Overview (2019)

This introduction presents an overview of the key concepts discussed in the subsequent chapters of this book. The book addresses a central problem of interpretation faced by biographers seeking to understand the decisionmaking processes of political leaders. It deals with the relevance of psychoanalytic theory to the biographer's work. The book focuses on the broader issue of the character and psychological suitability of candidates for the presidency, which has received increasing attention in the past few decades. It discusses the importance of a president's "style" in structuring and managing the policymaking process. The book presents a more detailed analysis of different types of presidential style and of the way in which personal styles of different presidents influence how they structure and manage the policymaking process. It explores three personality variables among presidents since Franklin D. Roosevelt, and it is suggested how these personality differences help to explain their preferences for different management models.
Focused ultrasound transducer with electrically controllable focal length (2018)

This paper reports a novel acoustic transducer capable of delivering focused acoustic beam with electrically tunable focal length over 7 mm. Constructed on a 1.02 mm thick lead zirconate titanate (PZT) substrate, the transducer uses a collection of equal-width-equal-spacing concentric ring electrodes (and a circular electrode at the center) on one side of the substrate. With each electrode individually addressable, a desired focal length is mapped to a set of the electrodes generating the acoustic waves that arrive at the focal point in-phase for constructive interference. We have demonstrated a device capable of electrically tuning the focal length (of a focal spot of sub-mm in diameter) from 5 to 12 mm, with the electrical tunability confirmed through droplet ejection from liquid surface (that is at the focal plane), as the liquid level is varied.