gebhart/patrepeval huggingface dataset:
Suivi par ré-identiﬁcation dans un réseau de caméras à champs disjoints (2012)

Cet article pose le problème du suivi automatique de piétons à travers les réseaux de caméras à champs de vue disjoints. Le suivi dans l’image est traité de manière locale par un algorithme de suivi par détections et ré-identification. Avec du filtrage particulaire à état continu et discret, nous introduisons la notion d’identité globale dans un algorithme de suivi multipiste pour caractériser les personnes au niveau du réseau et pallier les discontinuités d’observations. Ceci permet à chaque traqueur d’inclure l’identité de la cible qu’il est en train de suivre dans l’espace de recherche. Ce faisant, chaque traqueur maintient à jour une distribution de probabilité discrète sur l’identité de la piste qu’il est en train de suivre. La décision de ré-identification est renforcée par un schéma décisionnel haut niveau intégrant les hypothèses de chaque traqueur confrontées à la topologie du réseau. La composante suivi multipersonne et ré-identification est d’abord testée en contexte monocaméra. Nous évaluons ensuite notre approche complète sur un réseau de 3 caméras à champs de vue disjoints et un ensemble de 7 personnes. La seule connaissance a priori requise est la carte topologique du réseau.
PREPARATION AND CHARACTERISATION OFN,N-DISUBSTITUTED 2-AMINO-SELENAZOLES (1999)

Abstract As a result of checking suited methods for preparing N,N-disubstituted 2-amino-selenazoles 14 as a nearly unknown class of highly reactive selenazoles a simple route starting from N,N-disubstituted selenoureas 12 has been elaborated and used for the synthesis of a series of these compounds. The necessary selenium-containing starting compounds 12 are available from N,N-disubstituted cyanamides 18 and hydrogen selenide.
Management of the infertile couple: an evidence-based protocol (2010)

The study deploys a new strategy to translate the research findings and evidence-base recommendations into a simplified focused guide to be applied on routine daily practice. It is an approach to disseminate the recommended medical care for infertile couple to the practicing clinicians.
aRNA-longSAGE: a new approach to generate SAGE libraries from microdissected cells (2004)

Large-scale gene expression analyses of microdissected primary tissue are still difficult because generally only a limited amount of mRNA can be obtained from microdissected cells. The introduction of the T7-based RNA amplification technique was an important step to reduce the amount of RNA needed for such analyses. This amplification technique produces amplified antisense RNA (aRNA), which so far has precluded its direct use for serial analysis of gene expression (SAGE) library production. We describe a method, termed 'aRNA-longSAGE', which is the first to allow the direct use of aRNA for standard longSAGE library production. The aRNA-longSAGE protocol was validated by comparing two aRNA-longSAGE libraries with two Micro-longSAGE libraries that were generated from the same RNA preparations of two different cell lines. Using a conservative validation approach, we were able to verify 68% of the differentially expressed genes identified by aRNA-longSAGE. Furthermore, the identification rate of differentially expressed genes was roughly twice as high in our aRNA-longSAGE libraries as in the standard Micro-longSAGE libraries. Using our validated aRNA-longSAGE protocol, we were able to successfully generate longSAGE libraries from as little as 40 ng of total RNA isolated from 2000-3000 microdissected pancreatic ductal epithelial cells or cells from pancreatic intraepithelial neoplasias.
The impact of ageing on natural killer cell function and potential consequences for health in older adults (2013)

Forming the first line of defence against virally infected and malignant cells, natural killer (NK) cells are critical effector cells of the innate immune system. With age, significant impairments have been reported in the two main mechanisms by which NK cells confer host protection: direct cytotoxicity and the secretion of immunoregulatory cytokines and chemokines. In elderly subjects, decreased NK cell activity has been shown to be associated with an increased incidence and severity of viral infection, highlighting the clinical implications that age-associated changes in NK cell biology have on the health of older adults. However, is an increased susceptibility to viral infection the only consequence of these age-related changes in NK cell function? Recently, evidence has emerged that has shown that in addition to eliminating transformed cells, NK cells are involved in many other biological processes such as immune regulation, anti-microbial immune responses and the recognition and elimination of senescent cells, novel functions that involve NK-mediated cytotoxicity and/or cytokine production. Thus, the decrease in NK cell function that accompanies physiological ageing is likely to have wider implications for the health of older adults than originally thought. Here, we give a detailed description of the changes in NK cell biology that accompany human ageing and propose that certain features of the ageing process such as: (i) the increased reactivation rates of latent Mycobacterium tuberculosis, (ii) the slower resolution of inflammatory responses and (iii) the increased incidence of bacterial and fungal infection are attributable in part to an age-associated decline in NK cell function.
Prediction of Fracture Toughness Transition From Tensile Test Data Applying Neural Networks (2011)

Reference temperature localizing the fracture toughness temperature diagram on temperature axis was predicted based on tensile test data. Regularization artificial neural network (ANN) was adjusted to solve the interrelation of these properties. For analyses, 29 data sets from low-alloy steels were applied. The fracture toughness transition dependence was quantified by means of master curve concept enabling to represent it using one parameter — reference temperature. Different strength and deformation characteristics from standard tensile specimens and notched specimens, instrumented ball indentation test etc. have been applied. A very promising correlation of predicted and experimentally determined values of reference temperature was found.
Results of a Real Time Implementation of Vector Delay Lock Loop in a Dynamic Field Test (2019)

Regular GNSS receivers track the signal of each satellite in view independently, which commonly referred to as scalar tracking. However, with this method of signal tracking the visibility of the satellite and signal degradations have a high impact on the tracking and and reduces the robustness of the receiver. To overcome these common weaknesses, other approaches such as vector tracking (VT) exist. This approach benefits from the usage of the antenna movement and the dependence of the satellite distances to each other. Hence it is possible to provide a robust and continuous navigation solution as it is more robust against shadowing effects. One method of the VT is the so called vector delay lock loop (VDLL). The scalar code tracking loops are replaced with a single interlaced estimation algorithm. Present developments have shown good results in post processing for this. Our previous implementation in real-time already showed good results with simulated GPS L1 C/A signals. This paper presents the results of the ongoing work and research of a VDLL implementation with an extended Kalman filter (EKF) on a GNSS receiver in a field test. The test setup, the conditions and results are presented. A record and replay unit of a GNSS hardware receiver is used to evaluate the algorithm. This allows a repeatable and comparable real-time testing of the VDLL algorithm with pre-recorded real GNSS signals. In such scenarios, the VDLL must take into account more uncertainties, such as atmospheric and satellite clock errors.
Microbiological Transformations of Steroids.1 I. Introduction of Oxygen at Carbon-11 of Progesterone (1952)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMicrobiological Transformations of Steroids.1 I. Introduction of Oxygen at Carbon-11 of ProgesteroneD. H. Peterson, H. C. Murray, S. H. Eppstein, L. M. Reineke, A. Weintraub, P. D. Meister, and H. M. LeighCite this: J. Am. Chem. Soc. 1952, 74, 23, 5933–5936Publication Date (Print):December 1, 1952Publication History Published online1 May 2002Published inissue 1 December 1952https://pubs.acs.org/doi/10.1021/ja01143a033https://doi.org/10.1021/ja01143a033research-articleACS PublicationsRequest reuse permissionsArticle Views572Altmetric-Citations177LEARN 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
Gas-liquid-solid Operation of a High Aspect Ratio Self-ingesting Reactor (2012)

Gas-liquid stirred vessels are widely employed to carry out chemical reactions involving a gas reagent and a liquid phase. The usual way for introducing the gas stream into the liquid phase is through suitable distributors placed below the impeller. An interesting alternative is that of using “self ingesting” vessels where the headspace gas phase is injected and dispersed into the vessel through suitable surface vortices. In this work the performance of a Long Draft Tube Self-ingesting Reactor (LDTSR) dealing with three-phase (gas-liquid-solid) systems, is investigated. Preliminary experimental results on the effectiveness of this contactor for particle suspension and gas-liquid mass transfer performance in the three-phase system, are presented. Mass-transfer parameter kLa was measured by the recently introduced Simplified Dynamic Pressure Method (SDPM). It is found that the presence of low particle fractions causes a significant increase of the minimum speed required for vortex ingestion of the gas. Impeller pumping capacity and gas-liquid mass transfer coefficient are found to be affected by the presence of solid particles.
Recurrent atlantoaxial rotatory fixation in children: a rare complication of a rare condition (2004)

Atlantoaxial rotatory fixation (AARF) is an uncommon condition of childhood. Occasionally AARF may recur. The authors describe the cases of four patients with recurrent AARF (RAARF). The probable cause of the RAARF and operative procedure selected are discussed. In three cases, attempts were made to stabilize the atlantoaxial complex rather than to perform fusion to preserve the function of the joint complex. Joint stabilization is performed by incorporating a "check ligament" into the joint construct between the axial spinous process and the atlantal lateral mass. The authors believe this technique of joint stabilization augments the strength of the joint, allowing normal, but preventing excessive, rotation, until the joint reaches physiological maturity.
The mitochondrial connection (2008)

Arg catabolism to cytoplasmic urea and glutamate is initiated by two mitochondrial enzymes, arginase and ornithine aminotransferase. Mutation of either enzyme leads to Arg sensitivity, and at least in the former, an arginine-induced seedling morphology similar to exogenous auxin treatment. We reported that single mutants lacking either of two arginase isozymes exhibited more NO accumulation and efflux, and increased responses to auxin (measured by DR5 reporter expression and auxin-induced lateral roots). We discuss evidence for stimulation of NO by arginine, either directly, or via polyamines derived from arginine. We favor the "direct" route because mitochondria are sites of NO 'hot spots,' and the location of arginine-degrading enzymes and the NO-associated protein1. The polyamine "branch" invokes more than one cell compartment, at least two intermediates (polyamines and H(2)O(2)) between Arg and NO, and is not consistent with enhanced lateral root formation in arginine decarboxylase mutants. Genetic tools are at our disposal to test the two possible routes of arginine-derived NO.
eCITY: A Tool to Track Software Structural Changes Using an Evolving City (2013)

One of the main challenges in the maintenance of large-scale software systems is to ascertain the underlying software structure and to analyze its evolution. In this paper we present a tool to assist software architects and developers in not only understanding the software structure of their system but more importantly to track the insertion, removal, or modification of components over time. The tool is based on the idea that the above-mentioned stakeholders should have an intuitive, efficient, and effective means to detect when, where, and what structural changes took place. The main components include an interactive visualization that provides an overview of these changes. The usefulness of this approach is highlighted through a summary of a user study we conducted.
Methyl 2‐benzoylamino‐3‐dimethylamonopropenoate in the synthesis of heterocyclic systems. A simple synthesis of amino derivatives of isomeric naphthopyranones and naphthodipyranones (1992)

Abstract A simple synthesis of the amino derivatives of 3 H ‐naphtho[2,1‐ b ]pyran‐3‐one 5b‐d, 8,11 , and 20 , 2 H ‐naphtho[1,2‐ b ]pyran‐2‐one 14 and 19 , 2 H ,6 H ‐naphtho[1,2‐ b :3,4‐ b ']dipyran‐2,6‐dione 9 , 2 H ,11 H ‐naphtho[2,1‐ b :3,4‐ b ']dipyran‐2,11‐dione 12 , and 3 H ,9 H ‐naphtho[1,2‐ b :5,6‐ b ']dipyran‐3,9‐dione 15 from the corresponding monohydroxynaphthalenes 2c,d , dihydroxynaphthalenes 2b, 7, 10 , and 13 , and tetralones 16 and 17 with methyl 2‐benzoylamino‐3‐dimethylaminopropenoate (3) in acetic acid is described.
Local test of parallel electrical resistivity in the Tokamak Fusion Test Reactor (1997)

Local, time-resolved measurements have been made of the response of the internal magnetic-field distribution to large changes in the total plasma current. Measurements were made by the motional Stark effect (MSE) polarimeter on the Tokamak Fusion Test Reactor (TFTR). [R. J. Hawryluk et al., Proceedings of the 11th International Conference on Plasma Physics and Controlled Nuclear Fusion (International Atomic Energy Agency, Vienna, 1987) Vol. I, p. 51.] A direct test of the classical and neoclassical resistivity models was made by comparing the predicted field evolution using either model to that measured. It was found that the neoclassical resistivity model was a better predictor of the local magnetic-field temporal evolution than was the classical model.
Tyrosine phosphorylation of the orphan receptor ESDN/DCBLD2 serves as a scaffold for the signaling adaptor CrkL (2013)

A quantitative proteomics screen to identify substrates of the Src family of tyrosine kinases (SFKs) whose phosphorylation promotes CrkL-SH2 binding identified the known Crk-associated substrate (Cas) of Src as well as the orphan receptor endothelial and smooth muscle cell-derived neuropilin-like protein (ESDN). Mutagenesis analysis of ESDN's seven intracellular tyrosines in YxxP motifs found several contribute to the binding of ESDN to the SH2 domains of both CrkCT10 regulator of kinase Crk-Like (CrkL) and a representative SFK Fyn. Quantitative mass spectrometry showed that at least three of these (Y565, Y621 and Y750), as well as non-YxxP Y715, are reversibly phosphorylated. SFK activity was shown to be sufficient, but not required for the interaction between ESDN and the CrkL-SH2 domain. Finally, antibody-mediated ESDN clustering induces ESDN tyrosine phosphorylation and CrkL-SH2 binding.
A simple/green process for the preparation of composite carbon nanotube fibers/yarns (2014)

We report a simple and green process to prepare poly(vinyl alcohol)/carbon nanotube (PVA/CNT) composite fibers having high mechanical properties.
DLR's PIV system for large wind tunnels: Application to rotor and propeller flows (1998)

Particle image velocimetry (PIV) is increasingly used for aerodynamic research and development. The PIV technique allows the recording of a complete flow velocity field in a plane of the flow within a few microseconds. Thus, it provides information about unsteady flow fields, which is difficult to obtain with other experimental techniques, especially at the investigation of rotor flow fields and propeller slipstream
Bicycles in large cities in China (1989)

Bicycles are a main means of transport in China. This paper discusses several aspects of the current situation and future policy, including the production of bicycles, their possession and utilization in typical large cities, the reasons for their importance in communication, the advantages and problems of bicycle traffic, and two different opinions on solving the existing problems. The paper also deals with road design for bicycles and their regulation in China's cities.
ChemInform Abstract: Transsilylation Reactions of Phosphazene Precursors. (1987)

Abstract The transsilylation reactions of the phosphazene precursor (I) with the chlorosilane (II), the dichlorosilanes (IV) and (VI), and the dichlorodisiloxanes (X) lead to the products (III), and depending on the stoichiometry to (Va) or (Vb), (VIIa) or (VIIb), and (XIa) or (XIb‐d), respectively.
Improving the performance of lifts using artificial intelligence techniques (2004)

An elevator group control system manages multiple elevators to serve hall calls in a building. Most elevator group control systems need to recognize the traffic pattern of the building and then change their control algorithms to improve the efficiency of the elevator system. However, the traffic flow in a building is very difficult to be classified into distinct patterns. Traffic recognition systems can recognize certain traffic patterns, but mixed traffic patterns are difficult to be recognized. 
The aim of this study was therefore to develop improved duplex elevator group control systems that do not need to recognize the traffic pattern. A fuzzy logic control unit and genetic algorithms control unit were used. A fuzzy logic control unit integrates with the conventional duplex elevator group control system to improve performance especially in mixed traffic patterns with intermittent heavy traffic demand. This system will send more than one elevator to a floor with heavy demand, according to the overall passenger traffic conditions in the building. 
The genetic algorithms control unit divides the building into three zones and assigns an appropriate number of elevators to each zone. The floors covered by each zone are adjusted every five minutes. This control unit optimizes elevator group control by equalizing the number of hall calls in each zone, the total elevator door opening time in each zone, and the number of floors served by each elevator. 
Both of the control units were tested by a simulator in a computer. The performance of the elevator system is given by indices such as average waiting time, wasted man-hour, and long waiting time percentage. The new performance index “wasted man-hour” indicates the total time spent by passengers in a building waiting for the lift service. Both proposed systems perform better than the conventional duplex control system.
A Novel Image Median Filtering Algorithm based on Incomplete Quick Sort Algorithm (2010)

Quick sort algorithm is studied thoroughly, a new incomplete quick sort algorithm is designed, and then a novel image median filtering algorithm based on incomplete quick sort algorithm is proposed to improve the filtering speed. The new algorithm considers in detail the characteristic of image median filtering (In median filtering algorithm, the sorting operation of all pixel values is not necessary, the median value can be given by many other methods), and can give the median value by only sorting part of the pixels value in the neighborhood, thus it can reduce many data move operations, and then greatly improve the speed of image median filtering. Algorithm analysis and a lot of experiment results show that, the new algorithm greatly improves the speed of image median filtering, and can keep the edge, outline, texture and much other information to a great extent.
Rapid assay for amino acids in serum or urine by pre-column derivatization and reversed-phase liquid chromatography. (1982)

This method for estimating clinically important amino acids in serum or urine within 40 min involves o-phthalaldehyde/2-mercaptoethanol derivatization and reversed-phase "high-pressure" liquid chromatography. Homocysteic acid is an internal standard, and homoserine and norvaline are reference peaks. For all the amino acids estimated, the between-run coefficients of variation ranged from 2.0 to 13.5%, and the mean analytical recoveries from both serum and urine samples was 101%. Peak areas vary linearly with concentration up to 1500 mumol/L for all the amino acids assayed. The limit of detection for each amino acid was estimated to be 38 fmol.
Atom transfer radical polymerization (ATRP) of styrene and methyl methacrylate with α,α-dichlorotoluene as initiator; a kinetic study (2000)

The atom transfer radical polymerization (ATRP) of styrene and methyl methacrylate with α,α-dichlorotoluene (DCT) as initiator results in the respective chlorotelechelic polymers. From a kinetic point of view, however, the polymerization of styrene and methyl methacrylate show a different behavior: for the polymerization of styrene DCT is a bifunctional, for the polymerization of methyl methacrylate it is a monofunctional initiator.
New Method for the Generation and Trapping of 1-Azabicyclo[1.1.0]butane. Application to the Synthesis of 1,3-Dinitroazetidine (1998)

Abstract 1-Azabicyclo[1.1.0]butane (1) has been prepared via a two-step, one-pot procedure that involves (i) reaction of a heptane solution of allylamine with N-chlorosuccinimide at 0 °C followed by (ii) codistillation of the product from basic solution along with heptane-octane. Compound 1 thereby obtained was extracted from the distillate by using cold aqueous NaNO2. Subsequent treatment of the aqueous extract with cold concentrated aqueous HCl afforded N-nitroso-3-nitro-azetidine (4) in 5.5% yield. Oxidation of 4 with 100% HNO3 produced N,3-dinitroazetidine (5, 90%). This reaction sequence constitutes a formal synthesis of 1,3,3-trinitroazetidine (TNAZ), an important energetic material.