gebhart/patrepeval huggingface dataset:
Graph-based Spatial Motion Tracking Using Affine-covariant Regions (2009)

This thesis considers the task of spatial motion reconstruction from image sequences using a stereoscopic camera setup. In a variety of fields, such as flow analysis in physics or the measurement of oscillation characteristics and damping behavior in mechanical engineering, efficient and accurate methods for motion analysis are of great importance. This work discusses each algorithmic step of the motion reconstruction problem using a set of freely available image sequences. The presented concepts and evaluation results are of a generic nature and may thus be applied to a multitude of applications in various fields, where motion can be observed by two calibrated cameras. The first step in the processing chain of a motion reconstruction algorithm is concerned with the automated detection of salient locations (=features or regions) within each image of a given sequence. In this thesis, detection is directly performed on the natural texture of the observed objects instead of using artificial marker elements (as with many currently available methods). As one of the major contributions of this work, five well-known detection methods from the contemporary literature are compared to each other with regard to several performance measures, such as localization accuracy or the robustness under perspective distortions. The given results extend the available literature on the topic and facilitate the well-founded selection of appropriate detectors according to the requirements of specific target applications. In the second step, both spatial and temporal correspondences have to be established between features extracted from different images. With the former, two images taken at the same time instant but with different cameras are considered (stereo reconstruction) while with the latter, correspondences are sought between temporally adjacent images from the same camera instead (monocular feature tracking). With most classical methods, an observed object is either spatially reconstructed at a single time instant yielding a set of three-dimensional coordinates, or its motion is analyzed separately within each camera yielding a set of two-dimensional trajectories. A major contribution of this thesis is a concept for the unification of both stereo reconstruction and monocular tracking. Based on sets of two-dimensional trajectories from each camera of a stereo setup, the proposed method uses a graph-based approach to find correspondences not between single features but between entire trajectories instead. Thereby, the influence of locally ambiguous correspondences is mitigated significantly. The resulting spatial trajectories contain both the three-dimensional structure and the motion of the observed objects at the same time. To the best knowledge of the author, a similar concept does not yet exist in the literature. In a detailed evaluation, the superiority of the new method is demonstrated.
Implementing dynamic address changes in ContikiOS (2014)

To secure the Internet of Things (IoT) running on IPv6 over Low-Powered Wireless Personal Area Networks (6LoWPAN) by implementing a Moving Target IPv6 Defense (MT6D), there must first be a method developed to dynamically change IPv6 addresses over this resource constrained wireless network. We will discuss how we implemented this dynamic address change and how in doing so, we also had to change the Rime and MAC address thus implementing a moving target defense at Layers 2 and 3 of the OSI Model. We conducted our experiments in Contiki OS and utilized the Routing over Low-powered and Lossy Networks (RPL) protocol to perform the address changes between a node and its parent border router.
Vector analysis of the hemodynamics of atherogenesis in the human thoracic aorta using MR velocity mapping. (1998)

Vector analysis of the wall shear rate in the thoracic aorta was successfully done with MR velocity mapping in humans. MR velocity mapping can noninvasively evaluate the hemodynamics of atherogenesis induced by the complicated blood flow.
3-hydroxypropionic acid production through an integrated process including a succession of microbial bioconversion (2017)

International audience
Induction of apoptosis by JTE-522, a specific cyclooxygenase-2 inhibitor, in human gastric cancer cell lines. (2001)

An increased expression of cyclooxygenase (COX)-2 has been observed in various cancers including gastric cancer. Although specific COX-2 inhibitors have a chemopreventive effect on colon cancer, their molecular mechanisms remain unclear. To clarify these mechanisms, we investigated the effects of JTE-522, a newly developed COX-2-specific inhibitor, on gastric cancer cell lines (MKN28 and MKN45). The baseline levels of COX-2 expression were higher in MKN45 than in MKN28. JTE-522 obviously suppressed the levels of COX-2 mRNA, COX-2 protein and PGE2 at a dose of 250 microM in both cancer cells. Apoptosis was induced at 24 hours after treatment with JTE-522 (250 microM) in both cancer cells. To determine the mechanisms of apoptosis induction by JTE-522, the time course of the cell cycle and the apoptosis-related protein levels were examined. An increase in the G1 phase and a decrease in the S phase were observed prior to apoptosis. Moreover, an increase of c-myc protein and a decrease of bcl-2 protein were observed in both cells treated with JTE-522. These findings suggested that JTE-522 could induce apoptosis by blocking the cell cycle, enhancing c-myc expression and diminishing bcl-2 expression. JTE-522 also suppressed proliferation activity in both cell lines. These effects of JTE-522 were more dramatic in MKN45 than in MKN28. Since JTE-522 strongly suppresses cell growth by inducing apoptosis in gastric cancer cell lines, it may therefore serve as a chemopreventive agent.
Discotheques and the risk of hearing loss among youth: risky listening behavior and its psychosocial correlates (2010)

There is an increasing population at risk of hearing loss and tinnitus due to increasing high-volume music listening. To inform prevention strategies and interventions, this study aimed to identify important protection motivation theory-based constructs as well as the constructs 'consideration of future consequences' and 'habit strength' as correlates of adolescents' unsafe discotheque-visiting behavior. We invited 1687 adolescents (12-19 years old) at Dutch secondary schools to complete questionnaires about music-listening behaviors, sociodemographic characteristics and psychosocial determinants of behavior. Over 70% of participants reported to have visited discotheques; 24.6% of them were categorized as visitors at risk for hearing loss due to estimated exposure of 100 dBA for 1.25 hours per week or more without the use of hearing protection. Compared with visitors not at risk for hearing loss, those at risk were more likely not to live with both parents and less likely to consider future consequences and for them visiting high-volume music discotheques was more habitual. Risky exposure to high-volume music in discotheques is associated with several sociodemographic and psychosocial factors, with habit strength being the strongest correlate. Voluntary behavior change among adolescents might be difficult to achieve, because visiting discotheques seems to be strongly linked to current adolescent lifestyle.
Integration of concurrent engineering business processes via service oriented architectures in the virtual enterprise (2004)

The paper will present results of the NETFRAME project (GRD1-200140435): “establishing a documented framework for on-line concurrent engineering and cooperation between large industrial auto and aeronautical companies and its suppliers”. Within the scope of the EU funded GROWTH-project a comprehensive set of methods and tools is developed to support the improvement of the industrial concurrent engineering (CE) process in the virtual enterprise from both sides, industrial auto and aeronautical companies as well as SMEs serving as suppliers to the OEMs. To identify the state-of-the-art and key requirements within the concurrent engineering process an analysis was carried out to clearly outline the business scenario as well as the ICT architectures installed. Based on this, the project summarised the business and technical objectives as well as constraints imposed upon the required technological target architecture to seamlessly support the flow of manufacturing information between the diverse entities in this cooperation scenario. Presented within this paper are the project technological key results supporting this scenario. A technology architecture reference model and an XML model, focusing on tolerance analysis, to support and push the online and serviceoriented architecture based cooperation of OEMs and their suppliers.
ISOLATION AND CHARACTERIZATION OF ACETONE-INSOLUBLE SUBSTANCES IN CELLULOSE ACETATE PREPARED BY AN ACETIC ACID ACETYLATION PROCESS (2014)

Cellulose acetate fibers are commonly made by a dry-spinning process, in which cellulose acetate is firstly dissolved in acetone and then the cellulose acetate acetone solution is extruded through spinneret orifices that have extremely small diameters. Any insoluble substances in acetone solutions could cause disruptions in fiber extrusion, and are not tolerated. In this work, acetone-insoluble substances in cellulose acetates prepared from several kinds of pulps with varying cellulose content were isolated by ultracentrifugation, and characterized by using chemical, spectroscopic and chromatographic techniques. According to the results, acetone-insoluble substances are enriched in hemicellulose acetates, lower in the degree of substitution and higher in crystallinity in comparison with corresponding cellulose acetates. Based on analysis, a possible mechanism for the formation of insoluble substances is proposed. Hemicelluloses residues in pulps and insufficient acetylation of crystalline cellulose play important roles in forming the insoluble substances in cellulose acetate acetone solutions.
Intraocular Penetration of Sisomicin in Rabbits (1980)

The intraocular penetration of sisomicin, an aminoglycoside antibiotic, was studied in 47 normal rabbits following subconjunctival and/or intramuscular (IM) injections. Sisomicin levels were determined in the cornea and the aqueous humor of the injected eye as well as in the aqueous of the fellow eye by means of the cylinder-plate bioassay technique. When the IM route alone was used, the eye tissue concentrations remained negligible. One hour after subconjunctival injection, highly therapeutic sisomicin concentrations were achieved in the aqueous humor of both injected and fellow eyes, but the level dropped to very low concentrations 12 hours after the injection. The concomitant administration of sisomicin intramuscularly and subconjunctivally resulted in a significant delay of the clearance of sisomicin from the eye tissues. The use of the combined subconjunctival-IM regimen for administering aminoglycoside antibiotics needs further evaluation.
Production of indolic compounds by rumen bacteria isolated from grazing ruminants (2006)

These observations will contribute to understanding skatole and indole formation in the rumen and will lead to methods that control the formation of indolic compounds in pasture-grazed ruminants.
Survey of sociodemographic characteristics of tobacco use among 99,598 individuals in Bombay, India using handheld computers (1996)

The pattern of tobacco use varies across India and, in Bombay, is very different from other areas. Using handheld computers to collect data in the field was successful.
Unique-sample selection via near-infrared spectral subtraction (1985)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUnique-sample selection via near-infrared spectral subtractionD. E. Honigs, Gary M. Hieftje, H. L. Mark, and T. B. HirschfeldCite this: Anal. Chem. 1985, 57, 12, 2299–2303Publication Date (Print):October 1, 1985Publication History Published online1 May 2002Published inissue 1 October 1985https://pubs.acs.org/doi/10.1021/ac00289a029https://doi.org/10.1021/ac00289a029research-articleACS PublicationsRequest reuse permissionsArticle Views211Altmetric-Citations46LEARN 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
[Computerized tomography of 150 cases of lymphedema of the leg]. (1998)

The aim of this work was to evaluate the usefulness of CT imaging to stage lower limb lymphedemas. Between 1992 and 1997, we studied 150 cases of lymphedema, half idiopathic and half secondary. Methods used are described. In decreasing order of frequency, we found: skin thickening, increased subcutaneous tissue surface area compared with the healthy limb, thickening of the perimuscular aponevrosis, fat infiltration: lines parallel to the skin (parallel), edematous areas along the perimuscular aponevrosis, lines perpendicular to the skin (perpendicular). The lowest fat density was increased on the diseased side. The subfascial tissue showed some fat accumulation. These results were compared with findings reported in the literature. There were very major differences between idiopathic lymphedema and secondary lymphedema of the thigh. Similar images were generally generated by new and long-standing lymphedema. Rarely useful for positive diagnosis, CT is indispensable for establishing stage initially or after recent increase and, in our opinion, is essential for pretherapeutic assessment. The CT-scan gives objective evidence of overall disorders, the exact upper limit of the lymphedema, and sometimes reveals infraclinical bilateral involvement.
Optical deposition of graphene and carbon nanotubes in a fiber ferrule for passive mode-locked lasing (2010)

Mode-locked fiber lasers are currently undergoing a significant evolution towards higher pulse energies and shorter pulse durations. A key enabler in this progress has been the discovery of novel saturable absorbers (SA) such as carbon nanotubes (CNT) and graphene. The exceptional properties of CNTs as SA have been extensively studied in recent years. Graphene, a one atom thick planar sheet of carbon atoms arranged into a hexagonal lattice, has been recently proposed as an alternative to CNTs in several photonics applications. Here, we propose a method for the integration of graphene into a fiber ferrule using an optical deposition technique, which has been also employed for the deposition of CNT directly on the core of a fiber edge and in tapered fibers. We investigate and compare the optical properties of CNT-SA and graphene-SA fabricated by this optical deposition technique. Soliton-like, mode-locked lasing is confirmed using an erbium doped optical fiber in an all-fiber ring cavity laser configuration.
Synthesis of polyampholytic diblock copolymers via RAFT aqueous solution polymerization (2021)

Two new classes of polyampholytic diblock copolymers are prepared via RAFT aqueous solution polymerization and their aqueous solution behaviour is assessed using 1 H NMR spectroscopy, dynamic light scattering and aqueous electrophoresis measurements.
Two-trap model for low voltage stress-induced leakage current in ultrathin SiON dielectrics (2008)

Stress-induced leakage current is a useful probe of the buildup of trap states created by the electrical stress of ultrathin dielectric films. The generation of both bulk and interface traps can affect the current-voltage characteristics. It has been shown that trap assisted tunneling through interface traps is the dominant transport mechanism below 3.5 nm thickness when the poststress leakage is sensed in the off state. However, there is some ambiguity in the literature regarding whether traps at one or both of the contact interfaces are involved in the tunneling process. In this work, we show that for n-channel metal-oxide-semiconductor (NMOS) devices, the off-state (VG&amp;lt;0 V) gate current of electrically stressed ultrathin SiON dielectrics senses a two-trap tunneling process that involves interface states at both anode and cathode interfaces. In aggregate, five peaks due to tunneling via interface traps are observed in the poststress I-V characteristics of ultrathin NMOS SiON dielectrics.
Protoporphyrinogen Oxidase Inhibitor: An Ideal Target for Herbicide Discovery (2011)

As the last common enzyme in the biosynthetic pathway leading to heme and chlorophyll, protoporphyrinogen oxidase (PPO; EC 1.3.3.4) is an ideal target for herbicide development. Currently, about 30 PPO inhibitors have been developed as agricultural herbicides. PPO inhibitors have displayed environmentally benign, but advantageous characteristics, including low toxicity, low effective concentration, broad herbicidal spectrum (active against both monocotyledon and dicotyledon weeds), quick onset of action, and long lasting effect. Over the last several years, great achievements have been made in revealing the structural biology of PPO. Five PPO crystal structures, four isolated in enzyme-inhibitor complexes and one in the native form, have been determined, including those from Nicotiana tabacum, Myxococcus Xanthus, Bacillus subtilis, and human. Although PPO inhibitors have been developed for over forty years, we continue to uncover exciting future prospects for novel PPO-inhibiting herbicides. In this review, we have summarized the structures of PPOs from plants, human, and bacteria; the interactions between PPOs and inhibitors; the quantitative structure-activity relationships of PPO inhibitors; and the molecular design of new PPO inhibitors.
A new composite-cavity laser with two different waveguide cores for stable longitudinal mode operation (1989)

We have developed a new composite-cavity laser with two different waveguide cores connected near the front mirror in the same cladding. This composite cavity has a built-in structure that is capable of giving high mode selectivity because of strongly modulated reflectivity of the front mirror. The laser shows very stable single longitudinal mode operation in a temperature range as wide as about 50 °C for output powers from 3 to 100 mW without mode hopping.
Hydrodynamic Rocking Disc Electrode Study of the TEMPO‐mediated Catalytic Oxidation of Primary Alcohols (2016)

Abstract The hydrodynamically thinned diffusion layer at a sinusoidally rocking disc is approximately uniform and can be expressed in terms of a diffusion layer thickness with D , the diffusion coefficient of the redox active species, v , the kinematic viscosity, Θ , the total rocking angle (here 90 degrees), and f , the rocking frequency (ranging here from 0.83 to 25 Hz). For the one‐electron oxidation of 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO) in aqueous carbonate buffer pH 9.5, it is shown that there is quantitative agreement between the expression for the diffusion layer thickness and experimental data. Next, for seven primary alcohols, the catalytic TEMPO‐mediated oxidation mechanism is investigated under rocking disc conditions. Chemical rate constants are evaluated (by varying the diffusion layer thickness) employing the DigiElch4.F simulation package. Trends in the chemical rate constants (compared with DFT calculations) suggest enhanced reactivity for methanol versus higher primary alcohols and for aromatic versus non‐aromatic primary alcohols. Rocking disc voltammetry allows quantitative mechanistic analysis in the laminar flow regime.
Generation and characterization of monoclonal antibodies specific for the oncogene product P185~(neu/c-erbB-2) by surface epitope masking (SEM) (2000)

Objective:Surface epitope masking(SEM) is a new approach for selective production of monoclonal angibodies reacting with defined cell surface expressed molecules. Since P185 neu/c-erbB-2 protein is an important surface marker of breast cancer and other cancers This study was to prepare and characterize McAb against P185 neu/c-erbB-2 with high specificity and sensitivity by SEM for clinical application Methods:Using the method of Surface epitope masking(SEM)immunized BALB/C mouse with T6-17 cells which are NIH/3T3 transfected with meu/c-erbB-2 oncogene Fused the cells with the standard hybridma technique Performed ELISA screen to test the hybridomas'quality,limited dilution for cell cloning Results:Three hybridomas which can steadly secret McAb against P185 neu/c-erbB-2 protein were obtained The indirect immuno-HRP staining,flow cytometry analysis indicated that these three McAbs bind specifically to the P185 membrane positive cells,but not EGFR membrane positive cells Western blotting indicated that they all bind specifically to P185 protein Immunohistochemistry test showed positive staining for the sections of breast cancer tissue specifically Conclusion:These three McAbs are highly valued for clinic diagnosis and engineering
Introducing depolarisation into an inexpensive simple cloud sensor for standoff aerosol detection (2008)

Light detection and ranging (LIDAR) has potential to be a successful technique for remote detection of airborne biological warfare agents (BWA) that pose a health hazard. Potential techniques for detecting BWA often use spectroscopy to probe molecular structure properties (e.g. UV-fluorescence, Raman and differential absorption spectroscopy). An alternative approach is to differentiate BWA from background interferents by their differing morphology; depolarisation offers one such method. Here, we investigate the feasibility of introducing depolarisation into a short range (approximately 10 m) LIDAR designed to be a simple, inexpensive, low power consumption, portable instrument. T-matrix calculations are presented for a randomly oriented, polydisperse size distribution of Bacillus atrophaeus spheroids. The relationship between backscatter depolarisation and particle aspect ratio is investigated at several incident wavelengths corresponding to those produced by low cost, commercially available laser sources. Through a series of simulations, we determine the best combination of wavelengths for a multi-wavelength instrument design that exploits the concept of normalised depolarisation to determine particle aspect ratio, with the possibility of facilitating BWA detection.
Rapid sampling though quantum computing (2000)

This paper extends the quantum search class of algorithms to the multiple solution case. It is shown that, like the basic search algorithm, these too can be represented as a rotation in an appropriately defined two dimensional vector space. This yields new applicationsan algorithm is presented that can create an arbitrarily specified quantum superposition on a space of size N in o(4r-N) steps. By making a measurement on this superposition, it is possible to obtain a sample according to an arbitrarily specified classical probability distribution in O(,f-N) steps. A classical algorithm would need f2(N) steps.