gebhart/patrepeval huggingface dataset:
A heuristic wavelength assignment algorithm for multihop WDM networks with wavelength routing and wavelength re-use (1995)

Presents a heuristic algorithm for effectively assigning a limited number of wavelengths among the access stations of a multihop network wherein the physical medium consists of optical fiber segments which interconnect wavelength-selective optical switches. Such a physical medium permits the limited number of wavelengths to be re-used among the various fiber links, thereby offering very high aggregate capacity. Although the optical connectivity among the access station can be altered by changing the states of the various optical switches, the resulting optical connectivity pattern is constrained by the limitation imposed at the physical level. The authors also study two routing schemes, used to route requests for virtual connections. The heuristic is tested on a realistic traffic model, and the call blocking performance of new requests for virtual connections is studied through extensive simulations and compared against the blocking performance of an ideal infinite capacity centralized switch (lowest possible call blocking caused exclusively by congestion on the finite capacity user input/output links, never by the switch fabric itself). Surprisingly, the authors find that, for a wide range of parameters, the blocking performance of the lightwave network is almost the same as that of the ideal centralized switch. From these results, they conclude that the heuristic algorithm is effective and the routing scheme is efficient.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
'Speech within speech': The writing of Antonio Tabucchi (1996)

The narrator of Antonio Tabucchi’s 1991 novel Requiem has an appointment with a dead poet. During the twenty-four hours which he spends in Lisbon waiting to keep his appointment, he undertakes a physical journey through the city, which turns out to be also a parallel journey of the anima through memory. The journey is initiated by a book, Livro do Desassossego (The book of disquietude), by Fernando Pessoa, the “great poet” who awaits the narrator in the city of this novel. This paper examines Tabucchi's "dialogue with the dead", both within this text and across other Tabucchi texts. It endeavours to show how Tabucchi’s recuperation of Pessoa becomes the recognition of the Other's voices within one’s own unconscious, enabling the exploration of repressed discourse.
Analysis and Design of a Robust Floating Point CMOS Image Sensor (2009)

A robust floating point CMOS image sensor (CIS) is designed and tested. A detailed analysis for signal-to-noise ratio (SNR) of the floating point CIS including the effect of the exponent detection error is presented. Based on the analysis, a simple way to effectively remove the optimum integration time detection error is proposed. In addition, the proposed imager obtains the exponent at the beginning of the image capturing cycle, which provides a logarithmic image of the scene. A 32 times 24 prototype sensor including 4 transistors pixel array, 4 bit static random access memory (SRAM) array, 8 bit ADC and CDS block, and integration time control block was designed and fabricated using standard 0.5 mum CMOS process. It achieved 50.5 dB of dynamic range (DR) enhancement with 32 dB of peak SNR at 30 frames/s.
Progress on Post-translational Modifi cation of Proteins (2014)

Although protein expression is regulated through genetics and epi-genetics, its function is determined by many factors, of which post-translational modifi cation(PTM) is particularly important. Protein modifi cations are precisely regulated through a variety of modifi ers and de-modifi ers, most of which are yet to be defi ned. Most physiological or pathological processes are usually regulated through typical but complex and dynamic PTM patterns and networks. Reasonably, proteome of PTM is more precise to describe the physiological or pathological processes of cells at the molecular level to clarify protein functions and easy to fi nd out biomarkers and molecule targets for disease diagnosis and drug development. Here we reviewed some common types of modifi cations of proteins and methods in PTM research.
Exploiting 3D Spatial Continuity for Robust Automatic Horizon Matching across Faults (2006)

Oil and gas exploration decisions are made based on inferences obtained from seismic data interpretation. The interpretation task is getting very time-consuming as seismic data sets become larger. Image processing tools such as auto-trackers assist manual interpretation of horizons-visible boundaries between certain sediment layers in seismic data. Auto-trackers assume data continuities; therefore, their assistance is very limited in areas of discontinuities such as faults. In this paper, we present a method for automatic horizon matching across faults based on a Bayesian approach. A stochastic matching model which integrates 3D spatial information of seismic data and prior geological knowledge is introduced. The optimal matching solution is found by MAP estimate of this model. A simulated annealing with reversible jump Markov Chain Monte Carlo algorithm is employed to sample from a-posteriori distribution. The model was applied to real 3D seismic data, and has shown to produce geologically acceptable horizons matchings.
Location-based associativity routing for MANET (2006)

Mobile ad-hoc network (MANET) is a collection of wireless mobile nodes each working as a router and forming a dynamic topology of network. The location-aided routing algorithm of [Ko Young-Bae, and N. H. Vaidya, 2000] makes use of physical location information of destination node to reduce the search space for route discovery only, and not for data delivery. It does not cover route maintenance in case of broken links. The associativity-based routing algorithm of [Chai-Keong Toh, 1996] selects the route, based on node's associativity states. Therein, the search space used to determine the route to the destination node is equal to the entire network space and due to broadcast, the amount of routing related traffic increases, thereby consuming large portion of bandwidth. In this paper, we combine the ideas of these two papers and propose an algorithm, which is useful to derive bandwidth-efficient and long-lived routes, resulting in the improvement of performance of mobile ad hoc networks. It is supported with complexity analysis.
Location, Location, Location: Positioning Biotechnology Education for the 21st Century (2007)

Analysis of a range of definitions of biotechnology demonstrates that teachers' choices will determine their view of biotechnology along a traditional-modern axis and provide examples of the tensions these positions create. In order for teachers to plan appropriate learning experiences they need to be aware of how biotechnology is perceived in the curriculum, that is as science or technology. The consequences of such positioning decisions are explored in international curriculula. Other positiioning decisions are identified through an analysis of the compoisition of the 'public' for the field. Interpretations of the field will further affect how biotechnology contexts are used. Ultimately, the paper stresses the complexity of the role of the teacher in providing an appropriate educational outcome. Even though there are adequate resources they are not always fully utilised because appropriate positioning decisions have not been made. To realise biotechnology as a context for teaching modern science requires more than content resources.
Management of heatstroke and heat exhaustion. (2005)

Heat exhaustion and heatstroke are part of a continuum of heat-related illness. Both are common and preventable conditions affecting diverse patients. Recent research has identified a cascade of inflammatory pathologic events that begins with mild heat exhaustion and, if uninterrupted, can lead eventually to multiorgan failure and death. Heat exhaustion is characterized by nonspecific symptoms such as malaise, headache, and nausea. Treatment involves monitoring the patient in a cool, shady environment and ensuring adequate hydration. Untreated heat exhaustion can progress to heatstroke, a much more serious illness involving central nervous system dysfunction such as delirium and coma. Other systemic effects, including rhabdomyolysis, hepatic failure, arrhythmias, disseminated intravascular coagulation, and even death, are not uncommon. Prompt recognition and immediate cooling through evaporation or full-body ice-water immersion are crucial. Physicians also must monitor electrolyte abnormalities, be alert to signs of renal or hepatic failure, and replace fluids in patients with heatstroke. Most experts believe that physicians and public health officials should focus greater attention on prevention. Programs involving identification of vulnerable individuals, dissemination of information about dangerous heat waves, and use of heat shelters may help prevent heat-related illness. These preventive measures, when paired with astute recognition of the early signs of heat-related illness, can allow physicians in the ambulatory setting to avert much of the morbidity and mortality associated with heat exhaustion and heatstroke.
Allopurinol for the treatment of aggressive behaviour in patients with dementia (2003)

Aggressive behaviour is commonly observed in patients with dementia, and current pharmacological treatments are still deficient in terms of efficacy and tolerability. Allopurinol is an inhibitor of the enzyme xanthine oxidase, with previously suggested anti-aggressive effects. After successful treatment of aggression in two patients, we performed a case-series study with allopurinol 300 mg a day orally for 6 weeks (increasing 300 mg every 2 weeks if the response was less than 50%) in six patients with dementia associated with prominent aggressive behaviour who failed to respond to two previous treatment strategies. Five patients were considerably responsive to allopurinol (four with 300 mg within 2 weeks and one with 600 mg), apparently without side-effects, which is in accordance with its well-established safety and tolerability profile. The observed therapeutic effect of allopurinol might be due to the inhibition of the enzyme xanthine oxidase, possibly decreasing production of oxygen-free radicals or promoting the accumulation of purines. Controlled studies are warranted to confirm these preliminary observations.
On Translation Invariance in CNNs: Convolutional Layers Can Exploit Absolute Spatial Location (2020)

In this paper we challenge the common assumption that convolutional layers in modern CNNs are translation invariant. We show that CNNs can and will exploit the absolute spatial location by learning filters that respond exclusively to particular absolute locations by exploiting image boundary effects. Because modern CNNs filters have a huge receptive field, these boundary effects operate even far from the image boundary, allowing the network to exploit absolute spatial location all over the image. We give a simple solution to remove spatial location encoding which improves translation invariance and thus gives a stronger visual inductive bias which particularly benefits small data sets. We broadly demonstrate these benefits on several architectures and various applications such as image classification, patch matching, and two video classification datasets.
The novel PIAS-like protein hZimp10 is a transcriptional co-activator of the p53 tumor suppressor (2007)

The tumor suppressor, p53, plays critical roles in the cell cycle progression, DNA repair and apoptosis. The PIAS proteins (protein inhibitor of activated STAT) were originally identified as inhibitors of the JAK-STAT pathway. Subsequently, crosstalk between the PIAS proteins and other signaling pathways has been shown to be involved in various cellular processes. Particularly, previous studies have demonstrated that PIAS proteins regulate p53-mediated transcription through sumoylation. hZimp10, also named zmiz1, is a novel PIAS-like protein and functions as a transcriptional co-activator. We recently identified p53 to be an hZimp10 interacting protein in the yeast two-hybrid screen. The interaction between p53 and hZimp10 was confirmed by GST pull-down and co-immunoprecipitation assays. Co-localization of p53 and hZimp10 proteins was also observed within cell nuclei by immunostaining. Moreover, we show that expression of exogenous hZimp10 enhances the transcriptional activity of p53 and knockdown of endogenous hZimp10 reduces the transcriptional activity of p53. Furthermore, using chromatin immunoprecipitation assays, we demonstrate that hZimp10 binds to p53 on the p21 promoter. Finally, p53-mediated transcription is significantly impaired in Zimp10 null embryonic fibroblasts. Taken together, these results provide the first line of evidence to demonstrate a role for Zimp10 in regulating p53 function.
Infrared spectroscopy to probe structure and dynamics in metal ion-molecule complexes (2003)

Vibrational spectroscopy measurements are described for mass-selected metal cation-molecular complexes using the technique of infrared resonance-enhanced photodissociation (REPD) spectroscopy. We discuss the mechanism of the REPD process in the infrared and how multiphoton techniques or rare gas tagging can be employed to facilitate dissociation processes in strongly bound complexes. Spectra are reported for Fe+(CO2)n complexes that demonstrate the formation of coordination spheres around the metal cation and for Mg+(CO2)n complexes, where the interaction with theory makes it possible to obtain structures for small clusters. Both of these studies investigate the asymmetric stretch region of CO2. Ni+(C2H2)n complexes are studied in the C-H stretch region, demonstrating evidence for intracluster cyclization reactions. Finally, experiments are described for metal ion-benzene (M = V, Al) complexes excited in the benzene ring distortions and C-H bending region. These experiments confirm the ~ -bonded configuration of these complexes.
Chemical propellants (1952)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemical propellantsS. S. Penner Cite this: J. Chem. Educ. 1952, 29, 1, 37Publication Date (Print):January 1, 1952Publication History Received3 August 2009Published online1 January 1952Published inissue 1 January 1952https://doi.org/10.1021/ed029p37RIGHTS & PERMISSIONSArticle Views134Altmetric-Citations2LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (2 MB) Get e-Alerts Get e-Alerts
Monolithic surface-acoustic-wave phase shifter (1973)

A monolithic surface-acoustic-wave phase shifter is described. The device consists of a distributed Schottky-barrier varactor junction capable of varying the electrical boundary conditions seen by a surface acoustic wave propagating on a piezoelectric medium. Almost 180° of phase shift is achieved in 55 acoustic wavelengths of interaction region at 54 MHz.
Instrumental learning within the spinal cord: I. Behavioral properties. (1998)

Four experiments are reported that explore whether spinal neurons can support instrumental learning. During training, one group of spinal rats (master) received legshock whenever one hindlimb was extended. Another group (yoked) received legshock independent of leg position. Master, but not yoked, rats learned to maintain their leg in a flexed position, exhibiting progressively longer flexions as a function of training (Experiment 1). All subjects were then tested by applying controllable shock to the same leg (Experiment 2). Master rats reacquired the instrumental response more rapidly (positive transfer), whereas yoked rats failed to learn (a learned helplessness-like effect). Disrupting response-outcome contiguity by delaying the onset and offset of shock by 100 ms eliminated learning (Experiment 3). Experiment 4 showed that shock onset contributes more to learning than does shock offset.
Development of soft sensor system via dynamic optimization (2005)

In chemical process industry, some variables are difficult to measure on-line due to the limitation of measurement techniques, reliability or high cost to install a hard sensor. Some measurable variables, such as product quality, cannot be used for real-time optimization and control due to the large time delay. The soft-sensing of these variables is considered as an efficient method, and remains as an open problem. A new soft sensor system is developed to solve these problems in this work, which is based on rigorous model by using dynamic optimization to minimize the bias square between the model outputs and the measured outputs. Compared with other soft sensor systems, the proposed soft sensor system accurately employs the nonlinear model and considers the constraints in the optimization. It not only is more efficient in economic but also can be used on-line for real-time optimisation and control. The soft sensor system is successfully applied to estimation of the feed composition of a pilot heat-integrated distillation column system.
AlGaN/GaN High-Electron-Mobility Transistor Employing an Additional Gate for High-Voltage Switching Applications (2005)

We have proposed and fabricated an AlGaN/GaN high-electron-mobility transistor (HEMT) with an additional gate, which exhibits a low leakage current and a high breakdown voltage for high-voltage switching applications. The additional gate between the main gate and the drain is specially designed to decrease the electric field concentration at the drain side of the main gate. The leakage current of the proposed HEMT is decreased considerably and the breakdown voltage increases without sacrificing the transconductance and the drain current. The experimental results show that the off-state breakdown voltage and the leakage current of the proposed HEMT are 362 V and 75 nA while those of the conventional HEMT are 196 V and 428 nA, respectively.
Folding assembly by means of dual-arm robotic manipulation (2016)

In this paper, we consider folding assembly as an assembly primitive suitable for dual-arm robotic assembly, that can be integrated in a higher level assembly strategy. The system composed by two pieces in contact is modelled as an articulated object, connected by a prismatic-revolute joint. Different grasping scenarios were considered in order to model the system, and a simple controller based on feedback linearisation is proposed, using force torque measurements to compute the contact point kinematics. The folding assembly controller has been experimentally tested with two sample parts, in order to showcase folding assembly as a viable assembly primitive.
Loop fusion for clustered VLIW architectures (2002)

Embedded systems require maximum performance from a processor within significant constraints in power consumption and chip cost. Using software pipelining, high-performance digital signal processors can often exploit considerable instruction-level parallelism (ILP), and thus significantly improve performance. However, software pipelining, in some instances, hinders the goals of low power consumption and low chip cost. Specifically, the registers required by a software pipelined loop may exceed the size of the physical register set.The register pressure problem incurred by software pipelining makes it difficult to build a high-performance embedded processor with a single, multi-ported register bank with enough registers to support high levels of ILP while maintaining clock speed and limiting power consumption. The large number of ports required to support a single register bank severely hampers access time. The port requirement for a register bank can be reduced via hardware by partitioning the register bank into multiple banks connected to disjoint subsets of functional units, called clusters . Since a functional unit is not directly connected to all register banks, wasted energy and resources can result due to delays incurred when accessing "non-local" registers.The overhead due to partitioning of the register set can be ameliorated by using high-level compiler loop optimization techniques such as unrolling, unroll-and-jam and fusion. High-level loop optimizations spread data-independent parallelism across clusters that may not require "non-local" register accesses and can provide work to hide the latency of any such register accesses that are needed.In this paper, we examine the effects of loop fusion on DSP loops run on four simulated, clustered VLIW architectures and the Texas Instruments TMS320C64x. Our experiments show a 1.3 -- 2 harmonic mean speedup.
Personalizing Web-Based Information Systems through Context-Aware User Profiles (2008)

In this paper, we propose context-aware profiles and a filtering process for personalising informational content that is delivered to mobile users by Web-based information systems (WIS). The context-aware profiles allow mobile users to express their personal preferences for particular situations they encounter when using a WIS. We argue that the preferences and the needs of a mobile user may vary according to the context in which he uses the system. By defining these profiles, we propose a filtering process that takes into account both the user's current context and the user's preferences for this context. This process selects, in a first step, the context-aware profiles that match the user's current context, and then it filters the available informational content based on the selected profiles.
Dehydroepiandrosterone Supplementation in Healthy Men with an Age-Related Decline of Dehydroepiandrosterone Secretion (2001)

Serum dehydroepiandrosterone declines with age. Whether this represents a harmful deficiency or an age-related adaptation is not known. Dehydroepiandrosterone replacement in adrenal insufficiency, a state of pathological loss of dehydroepiandrosterone production, improves well-being, mood, and sexuality. To determine the effects of dehydroepiandrosterone in healthy men with a physiological, age-related decline in serum dehydroepiandrosterone sulfate, we conducted a double blind cross-over study in 22 healthy male volunteers (age range, 50–69 yr) with endogenous dehydroepiandrosterone sulfate levels below 4.1μ mol/liter (1500 ng/ml) receiving 4 months of dehydroepiandrosterone (50 mg/d) and 4 months of placebo treatment in random order, with a 1-month washout period. Dehydroepiandrosterone treatment increased serum dehydroepiandrosterone and dehydroepiandrosterone sulfate to concentrations usually found in young men. Circulating androgen levels did not change; however, androgen metabolites increased, indicating enhanced peripheral androgen synthesis. At baseline, psychometric assessment revealed normal well-being and sexuality scores. After 4 months of dehydroepiandrosterone, no effect on sexuality was observed, whereas some mood scores improved slightly, but were not significantly different from scores after placebo. Compared with placebo, dehydroepiandrosterone had no effect on serum lipids, bone markers, body composition, or exercise capacity. Thus, in contrast to previous findings in adrenal insufficiency, we found no obvious benefit of 4 months of dehydroepiandrosterone supplementation in healthy men with a physiological decline of dehydroepiandrosterone production.