gebhart/patrepeval huggingface dataset:
BLAM: a high-performance routing algorithm for virtual cut-through networks (2004)

High performance, freedom from deadlocks, and freedom from livelocks are desirable properties of interconnection networks. Unfortunately, these can be conflicting goals because networks may either devote or under-utilize resources to avoid deadlocks and livelocks. These resources could otherwise be used to improve performance. For example, a minimal adaptive routing algorithm may forgo some routing options to ensure livelock-freedom but this hurts performance at high loads. In contrast, chaotic routing achieves higher performance as it allows full-routing flexibility including misroutes (hops that take a packet farther from its destination) and it is deadlock-free. Unfortunately, Chaotic routing only provides probabilistic guarantees of livelock-freedom. In this paper we propose a new routing algorithm called BLAM (bypass buffers with limited adaptive lazy misroutes) which achieves Chaos-like performance, but guarantees freedom from both deadlocks and livelocks. BLAM achieves Chaos-like performance by allowing packets to be "lazily" misrouted outside the minimal rectangle. Lazy misrouting is critical to BLAM's performance because eager misrouting can misroute unnecessarily, thereby degrading performance. To avoid deadlocks, BLAM uses a logically separate deadlock-free network (like minimal, adaptive routing), virtual cut-through, and the packet exchange protocol (like Chaos). To avoid livelocks, unlike Chaos, BLAM limits the number of times a packet is misrouted to a predefined threshold. Beyond the threshold, stalled packets are routed by the deadlock-free network to their destinations. Simulations show that our BLAM implementation sustains high throughput at heavy loads for a variety of network configurations and communication patterns.
The Developing of a Wide-Area Interferometric Processor (1997)

ERS-1 SAR interferometry has been assessed over small areas. However, the development of an operational interferometric processor capable to process a quarter SLC scene running on a low-end workstation is a challenging task which requires new adaptive algorithms and blocking strategies in order to deal with a large amount of data This paper summarizes the present status of an interferometric processor under development The processor covers all stages from SLC images to DEM. Special effort is dedicated to make it as automatic as possible. Its main features are as follow: two different algorithms are combined in order to achieve a robust registration, the spectral shift filtering and the interferogram filtering are performed by means of a short time Fourier Transform which allows adaptive processing and two phase unwrapping algorithms are used: either LMS or weighted LMS. LMS performs well when dealing with not too difficult relief. W-LMS has a higher computational load but it allows to isolate low coherence or hard to unwrap areas using masks. Some results are shown using ERS-1 data
Effects of the Menstrual Cycle on Dependent Variables in Mood Disorder Research (1994)

The purpose of this article is to review the literature on the effects of the menstrual cycle on dependent variables in mood disorder research to inform investigators which physiological measures are likely to be significantly affected by menstrual cycle fluctuations and precisely how they might be affected. The following variables are discussed: prolactin; growth hormone; the hypothalamic-pituitary-thyroid axis (including thyrotropin, triiodothyronine, and thyroxine); the hypothalamic-pituitary-adrenal axis (cortisol, corticotropin, and beta-endorphin); melatonin; sleep; body temperature; and neurotransmitter activity (serotonergic and adrenergic systems). Body temperature and plasma and urinary norepinephrine vary predictably over the menstrual cycle. Prolactin and beta-endorphin may have peaks in the periovulatory phase, whereas serotonin levels in platelet-poor plasma may reach a nadir at that time. Triiodothyronine, thyroxine, cortisol, and melatonin do not appear to vary systematically over the course of the menstrual cycle, whereas the data for growth hormone, thyrotropin, corticotropin, and sleep are inconclusive.
Spectrofluorometric Identification of Phenothiazine Drugs. (1963)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpectrofluorometric Identification of Phenothiazine Drugs.T. J. Mellinger and C. E. KeelerCite this: Anal. Chem. 1963, 35, 4, 554–558Publication Date (Print):April 1, 1963Publication History Published online1 May 2002Published inissue 1 April 1963https://pubs.acs.org/doi/10.1021/ac60197a005https://doi.org/10.1021/ac60197a005research-articleACS PublicationsRequest reuse permissionsArticle Views128Altmetric-Citations48LEARN 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 InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
The Arabidopsis thaliana PIN1At Gene Encodes a Single-domain Phosphorylation-dependent Peptidyl Prolylcis/trans Isomerase (2000)

A homologue of the human site-specific prolyl cis/trans isomerase PIN1 was identified in Arabidopsis thaliana. The PIN1At gene encodes a protein of 119 amino acids that is 53% identical with the catalytic domain of the human PIN1 parvulin. Steady-state PIN1At mRNA is found in all plant tissues tested. We show by two-dimensional NMR spectroscopy that the PIN1At is a prolyl cis/trans isomerase with specificity for phosphoserine-proline bonds. PIN1At is the first example of an eukaryotic parvulin without N- or C-terminal extensions. The N-terminal WW domain of 40 amino acids, typical of all the phosphorylation-dependent eukaryotic parvulins, is absent. However, triple-resonance NMR experiments showed that PIN1At contained a hydrophobic helix similar to the alpha1 helix observed in PIN1 that could mediate the protein-protein interactions.
<i>Trichophyton</i> species: use of volatile fingerprints for rapid identification and discrimination (2006)

This is the first detailed study of the use of qualitative volatile fingerprints for identification and discrimination of dermatophytes. This approach could have potential for rapid identification of patient samples, reducing significantly the time to treatment.
Grafting Poly(ethylene glycol) Epoxide to Amino-Derivatized Quartz:  Effect of Temperature and pH on Grafting Density (1996)

Microparticle capillary electrophoresis was used to characterize the surface of quartz capillaries grafted with the glycidyl ether of poly(ethylene glycol) (E-PEG). Site dissociation modeling of capillary electrokinetic behavior provided estimates of surface group pK and density, plus the distance (d) from the surface to the hydrodynamic plane of shear. Native quartz appeared to possess silanol groups of pK 3.6 and 6.9 whose surface densities varied with quartz treatment. Aminopropylsilane derivatization of quartz silanol groups in toluene yielded a coating which was stable (>6 h) at pH 10.3 and 60 °C. Aqueous grafting of E-PEG to this surface was relatively independent of pH (7.3-10.3) and reaction time (6-24 h) but was significantly influenced by reaction temperature (25-95 °C) and salt composition. PEG-grafted capillaries exhibited greatly reduced electroosmosis from pH 2 to 11. Significant grafting could be obtained under mild conditions (6 h, 35 °C, 0.4 M K(2)SO(4), pH 6.9). These results suggest that PEG chains increasingly extend normal to a surface as their grafting density increases, and that PEG conformation influences grafting density. The methods described should aid the use of PEG-coated surfaces in a variety of applications.
TiO<sub>2</sub>−Multiwalled Carbon Nanotube Heterojunction Arrays and Their Charge Separation Capability (2007)

Aligned multiwalled carbon nanotubes (MWNTs) coated with TiO2 nanoparticles were fabricated on a titanium foil by atmospheric pressure chemical vapor deposition (CVD). Their morphology was characterized by environmental scanning electron microscopy (ESEM) and transmission electron microscopy (TEM). The results revealed MWNTs were aligned, and each MWNT with well-graphited walls was coated with TiO2 nanoparticles. Measured by a micromanipulator manual probe station, the current−voltage (I−V) curve of aligned MWNTs on the titanium substrate (MWNT/Ti) was almost linear due to ohmic MWNT−Ti contacts, whereas for aligned MWNTs coated with TiO2 nanoparticles on titanium substrate (TiO2−MWNT/Ti), the I−V curve revealed rectifying behavior, and this rectification demonstrated that a heterojunction had been formed between TiO2 and the MWNT. The photoelectrochemical investigations certified that the TiO2−MWNT heterojunction could minimize recombination of photoinduced electrons and holes and had a more effective photoconversion capability than the aligned TiO2 nanotubes on the titanium substrate (TiO2/Ti).
BQP-complete Problems Concerning Mixing Properties of Classical Random Walks on Sparse Graphs (2006)

We describe two BQP-complete problems concerning properties of sparse graphs having a certain symmetry. The graphs are specified by efficiently computable functions which output the adjacent vertices for each vertex. Let i and j be two given vertices. The first problem consists in estimating the difference between the number of paths of length m from j to j and those which from i to j, where m is polylogarithmic in the number of vertices. The scale of the estimation accuracy is specified by some a priori known upper bound on the growth of these differences with increasing m. The problem remains BQP-hard for regular graphs with degree 4. The second problem is related to continuous-time classical random walks. The walk starts at some vertex j. The promise is that the difference of the probabilities of being at j and at i, respectively, decays with O(exp(-μt)) for some μ>0. The problem is to decide whether this difference is greater than a exp(-μT) or smaller than b exp(-μT) after some time instant T, where T is polylogarithmic and the difference a-b is inverse polylogarithmic in the number of vertices. Since the probabilities differ only by an exponentially small amount, an exponential number of trials would be necessary if one tried to answer this question by running the walk itself. A modification of this problem, asking whether there exists a pair of nodes for which the probability difference is at least a exp(-μT), is QCMA-complete.
An Investigation of Electron Beam Divergence from a Single DFEA Emitter Tip (2018)

Diamond Field-Emitter Array (DFEA) cathodes are arrays of micron-scale diamond pyramids with nanometer-scale tips. DFEAs can produce high emission currents with small emittance and energy spread. At LANL, we have an ongoing program to test DFEA cathodes for the purpose of using them to generate high-current, low-emittance electron beams for dielectric laser accelerators. We have recently upgraded our cathode test chamber to use a mesh anode in place of a solid luminescent anode. In addition to allowing for downstream beam transport, this arrangement may eliminate earlier problems with reduced cathode performance due to ion back-bombardment. We are measuring divergence of the electron beam past the mesh in an effort to characterize the inherent beam divergence off the diamond tip and divergence contribution from the mesh. We will compare these observations with theoretical and modeled values.
Design and development of the smart machine vision sensor (1998)

The Smart Machine Vision Sensor (SMVS) is a self-contained low-cost machine vision system that combines an image sensor, a processing unit and communication interfaces in a single unit. This paper describes the design of the SMVS, the concept of the operating system and the application software. The main characteristics of the SMVS are (1) the absence of an analog video signal and (2) the modular design concept. The signal processing is performed with the processing unit and the output consists either of image analysis results or a compressed digital image data stream. The modular design allows for easy customization for applications that require different sensor technologies, resolutions and spectral sensitivities. The modular design is made possible by the development of a generic sensor-CPU interface. This interface can be used with either CCD or CMOS sensors with a resolution of 512512 pixels. It eliminates the need to redesign the processor board with changing sensor requirements. The SMVS is smaller and cheaper than traditional image processing systems based on desktop personal computers. It uses full-frame, non-interlaced sensors with square pixels to provide an optimal image quality, avoiding the drawbacks of an analog, interlaced video signal with ^Lxed frame rate.
Nonlinear Analysis of Dynamical Complex Networks 2014 (2014)

We have solicited submissions from electrical engineers, control engineers, computer scientists, and mathematicians. After a rigorous peer review process, 28 papers have been selected that provide overviews, solutions, or early promises, to manage, analyze, and interpret dynamical behaviours of complex systems. These papers have covered both the theoretical and practical aspects of complex systems in the broad areas of dynamical systems, mathematics, statistics, operational research, and engineering.
Computer animation (1996)

Computer animation may be defined as a technique in which the illusion of movement is created by displaying on a screen or recording on a device a series of individual states of a dynamic scene. The key issue of computer animation is defining motion, commonly known as motion control methods (MCMs). MCMs may be classified according to the nature of the information that is directly manipulated: geometric, physical, or behavioral
Control of Electroosmotic Flow and Wall Interactions in Capillary Electrophosesis Capillaries by Photografted Zwitterionic Polymer Surface Layers (2003)

A novel capillary with covalently bonded zwitterionic surface modification was prepared by photograft polymerization of the zwitterionic monomer N,N-dimethyl-N-methacryloxyethyl-N-(3-sulfopropyl)ammonium betaine, onto the inner surface of a UV-transparent fused-silica capillary. Although the zwitterionic moieties in the resulting polymeric "tentacles" comprise both a positive quaternary ammonium group and a negative sulfonate group, the coating has a net zero charge. The electroosmotic flow (EOF) was therefore extensively suppressed on the grafted capillary compared to the native silica capillary and to the silica capillary that had been activated for graft polymerization by reaction with 3-(methacryloyl)oxypropyltrimethoxysilane. It was also found that the EOF can be varied by adding chaotropic anions or divalent cations such as perchlorate ion and magnesium ion to the running buffer, due to the interaction between these ions and zwitterionic functional group. This provides a new way of altering the EOF and the wall interaction without changing the pH or the overall ionic strength of the separation buffer. The influence of pH and ionic strength of separation buffer on the EOF were also investigated to optimize the separation conditions. Good separations of a mixture containing eight inorganic anions were achieved within 5 min under optimal conditions by capillary zone electrophoresis. The newly prepared capillary was also well suited for the separation of peptides or proteins.
The Peripheral Zone of Increased Density in Cranial Computed Tomography (1975)

The band of increased attenuation seen on in vivo CCT images of adults, frequently designated as the cerebral cortex, has been proved clinically and experimentally to be an artifact in the reconstructed image. Recognition of this artifact may be of help in identifying intracranial lesions, such as shallow subdural hematomas. Attenuation values of isolated cortex and white matter were also studied and do not account for the band of high attenuation.
High resolution‐GLC of carbohydrates as their dithioacetal‐trimethylsilylates and ‐trifluoroacetates (1990)

Abstract In the recent past, GLC separation of carbohydrates has significantly decreased in importance as a routine method compared with high resolution HPLC analysis. The reason for this is the handicap of most of the conventional derivatization procedures for GLC, i.e. , formation of multiple derivatives with reducing sugars. Mercaptalation, the only method yielding a single derivative with each component, was rather complicated and therefore unpopular for routine work. In this paper a simplified mercaptalation is described which can be followed either by a trimethylsilylation or a trifluoroacetvlation and yields stable assays for chromatography. The combination with an optimized separation on megabore capillary columns results in a universally suited method, useful even with complex sample compositions. The separation power and speed of this method is at least comparable with high resolution HPLC analyses.
Polyphenols and Aging (2010)

Age-associated changes within an individual are inherently complex and occur at multiple levels of organismal function. The overall decline in function of various tissues is known to play a key role in both aging and the complex etiology of certain age-associated diseases such as Alzheimer's disease (AD) and cancer. Continuing research highlights the dynamic capacity of polyphenols to protect against age-associated disorders through a variety of important mechanisms. Numerous lines of evidence suggest that dietary polyphenols such as resveratrol, (-)-epigallocatechin-3-gallate (EGCG), and curcumin have the capacity to mitigate age-associated cellular damage induced via metabolic production of reactive oxygen species (ROS). However, recently acquired evidence also demonstrates a likely role for these polyphenols as anticancer agents capable of preventing formation of new vasculature in neoplastic tissues. Polyphenols have also been shown to possess other anticancer properties such as specific cell-signaling actions that may stimulate the activity of the regulatory protein SIRT1. Additionally, polyphenolic compounds have demonstrated their inhibitory effects against chronic vascular inflammation associated with atherosclerosis. These increasingly well-documented results have begun to provide a basis for considering the use of polyphenols in the development of novel therapies for certain human diseases. And while the mechanisms by which these effects occur are yet to be fully understood, it is evident that further investigation may yield a potential use for polyphenols as pharmacological interventions against specific age-associated diseases.
The Mechanisms of Making Molecules to Order (1992)

Abstract The mechanisms of formation of a [2]catenane and one of its molecular components have been investigated. While the synthesis of the tetracationic cyclophane, [BBIPYBIXYCY] 4+ from bipyridine (BP) and 1,4‐bis(bromomethyl)benzene (BBB) , directed by the template, 1,5–bis[2(2–hydroxyethoxy)ethoxy]naphthalene (1/5BHEEN) becomes less efficient (23 to 5%) under ultra‐high pressure reaction conditions (12 kbars), the self‐assembly of {[2]‐[BPP34C10]‐[BBIPYBIXYCY] catenane} 4+ from BP and BBB in the presence of BPP34C10 can be achieved with increased efficiency (18 to 42%) at 12 kbars. This difference in the trends of the yields can be ascribed to the enhanced templating action of BPP34C10 relative to that of 1/5BHEEN when two moles of BP and two moles of BBB are being employed to construct the tetracationic cyclophane. The self‐assembly of the [2]catenane from BP, BBB , and BPP34C10 has been followed by 1 H NMR spectroscopy in D 7 ‐DMF solution. On the basis of this spectroscopic evidence and supporting chemical data, the formation of {[2]‐[BPP34C10]‐[BBIPYBIXYCY] catenane} 4+ from two moles of BP , two moles of BBB , and one mole of BPP34C10 is believed to proceed via the monoquatemary intermediate, [MBXYBIPY] + , which has not been isolated, and the dicationic species, [BBIPYXY] 2+ , which has been isolated and shown to be an intermediate in the self‐assembly process leading to the [2]catenane, presumably via the [BXYBBIPYXY] 3+ trication — the final intermediate which again has not been isolated.
Săpăturile de salvare de la Noviodunum / Les fouilles de Noviodunum (1957)

Barnea Ion, Anghelescu Niţă, Mitrea Bucur. Săpăturile de salvare de la Noviodunum / Les fouilles de Noviodunum. In: Materiale şi cercetări arheologice, N°4 1957. pp. 155-174.
Feature Article: Analytical Ultracentrifugation of Nanoparticles (2004)

Analytical ultracentrifugation (AUC) is a classical absolute technique for polymer analysis. However, it is also a very powerful technique for the characterization of nanoparticles as already established almost 80 years ago by the pioneering work of Svedberg and coworkers. AUC allows for sample fractionation either due to size (sedimentation velocity/sedimentation equilibrium) or due to the chemical structure expressed as particle density (density gradient). Thus, the direct measurement of particle size resp. particle density distributions is possible with high statistical accuracy and a very high resolution even in complicated mixtures. Beside an introduction to AUC, this article will outline these possibilities for nanoparticles with sizes ranging over the entire colloidal range and also for organic-inorganic hybrid particles, showing the versatility of AUC. Also, a guide to AUC textbooks, internet discussion platforms, and modern free evaluation software is provided. The combination with other techniques such as light scattering or field-flow-fractionation can gain a deep insight into complex hybrid particle mixtures. This points toward future global analysis possibilities for the simultaneous determination of distributions of several particle characteristics such as size and density.
Evaluating and Planning Cancer Screening Programs (1996)

Anthropologists are relative new comers to applied health research in the Prairie provinces. We are receiving a cautious welcome from people trained in other disciplines who have rarely thought of anthropologists as concerned with issues other than stones, bones, and exotica. Anthropologists with training and experience in health research have much to offer, however. As diminishing resources increase concerns about health care, we bring new perspectives and a repertoire of methods and interpretative frameworks to revitalize research into ongoing issues.
Mechanistic Investigations of the Ethylene Tetramerisation Reaction (2005)

The unprecedented selective tetramerisation of ethylene to 1-octene was recently reported. In the present study various mechanistic aspects of this novel transformation were investigated. The unusually high 1-octene selectivity in chromium-catalyzed ethylene tetramerisation reactions is caused by the unique extended metallacyclic mechanism in operation. Both 1-octene and higher 1-alkenes are formed by further ethylene insertion into a metallacycloheptane intermediate, whereas 1-hexene is formed by elimination from this species as in other reported trimerisation reactions. This is supported by deuterium labeling studies, analysis of the molar distribution of 1-alkene products, and identification of secondary co-oligomerization reaction products. In addition, the formation of two C6 cyclic products, methylenecyclopentane and methylcyclopentane, is discussed, and a bimetallic disproportionation mechanism to account for the available data is proposed.