Miracle-dz/UniFAR-FTUs huggingface dataset:
UvA-DARE ( Digital Academic Repository ) Choroidal haemodynamics in glaucoma

Aim—Quantification of haemodynamics of the peripapillary choroid in and the assessment of possible diVerences between normal subjects (N), ocular hypertensive (OHT), primary open angle (POAG), and normal pressure glaucoma (NPG) patients. Methods—Video fluorescein angiograms (Rodenstock SLO 101) were made in 22 N subjects, 12 OHT, 48 POAG, and 46 NPG patients. The angiographically derived dye build up curves were described by means of an exponential model.One of the model parameters is the time constant ô theoretically reflecting local blood refreshment time; the blood refreshment time ô is the time needed to replace the blood volume in the choriocapillaris, inversely proportional to the local choroidal blood flow. Other variables are maximal fluorescence (Fdt) and time of first fluorescence (t0). Mean variable values were calculated for disc area and circular areas around the disc. Results—Fdt of the disc was significantly lower in the POAG and NPG patients. There was no statistical diVerence in t0 between the study groups. The choroidal blood refreshment time was significantly longer in NPG patients and to a lesser extent in the POAG patients compared with the normal controls. The slowest choroidal blood refreshment can be found in the NPG group. The median choroidal blood refreshment times (25th–75th percentile) in the controls, OHT, POAG, and NPG patients were 4.1 (3.7–4.5), 4.4 (3.7– 6.4), 5.8 (4.3–6.8), and 7.1 (5.5–9.3) seconds respectively. Conclusions—With the help of parametrisation of dye curves, using a one compartmental model, choroidal haemodynamics can be quantified. The blood refreshment time of the peripapillary choriocapillaris was found to be significantly prolonged especially in NPG patients; this may indicate slower choroidal haemodynamics in NPG patients. (Br J Ophthalmol 1997;81:735–742) A vascular role in the pathogenesis of primary open angle glaucoma (POAG) has been postulated for many years. Evidence is accumulating that a disturbance of blood flow in the posterior pole does exist, especially in patients with normal pressure glaucoma (NPG) with intraocular pressures within statistically normal limits. In some POAG patients, possibly secondary, haemodynamic changes may exist
Gestion d'interférence dans un réseau LTE hétérogène parcontrôle d'admission cognitif.

Dans ce memoire, nous considerons un reseau LTE heterogene (HetNet) macro-femto a acces ferme avec un deploiement co-canal (idem, partage du spectre) et etudions ses performances en termes de debit en presence d'un nouvel algorithme de controle d'admission qui impose une nouvelle contrainte sur l'interference recue au niveau de la station de base femto (FBS). En particulier, nous etudions le nouvel algorithme de controle d'admission dans un reseau HetNet quand un nouvel utilisateur apparait dans la zone de transmission de cellules femtos. Dans ce contexte, nous developpons un nouvel algorithme d'admission pour les reseaux macro-femto base sur la limitation de la quantite d'interference generee recue par les utilisateurs macros voisins qui maximise le debit du sous-reseau femto et equilibre egalement la charge entre les sous-reseaux macro et femto. Un nouvel utilisateur est admis au sous-reseau femto tout en assurant qu'aucune interference est generee sur les utilisateurs macros adjacents au-delas d'un seuil maximal de puissance permis. Pour evaluer l'algorithme d'admission propose, nous developpons un simulateur LTE au niveau systeme pour mesurer les gains en debit qu'ils procure a l'ensemble du reseau LTE HetNet a deploiement co-conal. Nous comparons enfin par simulations le nouvel algorithme d'admission propose avec la technique conventionnelle d'admission sur la base de la puissance du signal recu. Les resultats obtenus suggerent que les gains en debit total, pouvant atteindre jusqu'a 13 %, augmentent en presence i) d'un nombre croissant d'usagers, ii) d'un nombre decroissant de cellules femto par celIule macro, et iii) de distributions d'usagers moins uniformes et plus condensees autour des cellules femtos. Ils revelent egalement l'existence d'un seuil optimal du niveau d'interference admissible que peuvent generer les FBSs sur les usagers macros voisins. Nos simulations ont pu le situer dans la configuration consideree a un niveau optimal proche de -60 dBm.
Replication of Chlamydia pneumoniae in vitro in human macrophages, endothelial cells, and aortic artery smooth muscle cells

Chlamydia pneumoniae has recently been associated with atherosclerotic lesions in coronary arteries. To investigate the biological basis for the dissemination and proliferation of this organism in such lesions, the in vitro growth of C. pneumoniae was studied in two macrophage cell lines, peripheral blood monocyte-derived macrophages, human bronchoalveolar lavage macrophages, several endothelial cell lines, and aortic smooth muscle cells. Five strains of C. pneumoniae were capable of three passages in human U937 macrophages and in murine RAW 246.7 macrophages. Titers were suppressed in both macrophage types with each passage, as compared with growth titers in HEp-2 cells. Both human bronchoalveolar lavage macrophages and peripheral blood monocyte-derived macrophages were able to inhibit C. pneumoniae after 96 h of growth. Eleven C. pneumoniae strains were capable of replicating in normal human aortic artery-derived endothelial cells, umbilical vein-derived endothelial cells, and pulmonary artery endothelial cells. Infection in human aortic artery smooth muscle cells was also established for 13 strains of C. pneumoniae. The in vitro ability of C. pneumoniae to maintain infections in macrophages, endothelial cells, and aortic smooth muscle cells may provide support for the hypothesis that C. pneumoniae can infect such cells and, when infection is followed by an immune response, may contribute to atheroma formation in vivo. More studies are needed to investigate the complex relationship between lytic infection and persistence and the potential for C. pneumoniae to influence the generation of atheromatous lesions.
Alexa, Who Owns My Pillow Talk? Contracting, Collaterizing, and Monetizing Consumer Privacy Through Voice-Captured Personal Data

Follow this and additional works at: https://scholarship.law. edu/jlt Part of the Commercial Law Commons, Common Law Commons, Communications Law Commons, Consumer Protection Law Commons, Contracts Commons, First Amendment Commons, Intellectual Property Law Commons, International Law Commons, Internet Law Commons, Legislation Commons, Privacy Law Commons, Science and Technology Law Commons, and the Secured Transactions Commons
Pattern Matching Using Partial Fourier Spectrum

Pattern matching is a fundamental technique in image processing. The majority of improvements that have been proposed in the literature are geared toward small- to mid-size templates and images. The rapidly increasing resolution and size of images demand a more efficient template-matching algorithm. The main focus of this paper is to address this problem by proposing a novel template-matching algorithm using partial Fourier spectrum (PFS) components as its feature set. It is shown that regardless of the content of the template in terms of correlation in spatial domain, the use of PFS components results in a smooth error surface, which facilitates the evaluation of the region of interest by predicting the error change within the foreseeable distance. It is also shown that this approach generates a broad global minimum area around the best match, which is on the order of the size of the template. Based on these characteristics, three algorithms are developed and the performance of the algorithms is analyzed through extensive mathematical analysis and experimental simulations. The experimental results, generated using over 13 000 image/template pairs, indicate that the proposed algorithms outperform the most efficient algorithms currently available in the literature by over an order of magnitude.
Genetically-Informed Patient Selection for iPSC Studies of Complex Diseases May Aid in Reducing Cellular Heterogeneity

Induced pluripotent stem cell (iPSC) technology is more and more used for the study of genetically complex human disease but is challenged by variability, sample size and polygenicity. We discuss studies involving iPSC-derived neurons from patients with Schizophrenia (SCZ), to exemplify that heterogeneity in sampling strategy complicate the detection of disease mechanisms. We offer a solution to controlling variability within and between iPSC studies by using specific patient selection strategies.
Dealing with the paradoxes of customer opinion for effective decision support in churn management

The process of analysing opinion expressed about a brand, organization or product in churn management has been taking on a new dimension in recent times. A subjective opinion, which hitherto could be rendered as positive or negative, can now be positive and negative. Accordingly, the act of channelling an effective acquisition or retention strategy for customers becomes more complex with increasing overhead costs. Moreover, the increase in false positive and negative churn classification via sentiment analysis affects organizational knowledge, which oftentimes causes other societal challenges. As churn prediction analysis transits dramatically from local transactional data analysis, to social network content analysis for real time churn decision support, the paradoxical nature of opinion may render sentiment analysis as a tool for opinion mining less effective for decision support. This is because the sentiment analysis approach handles customers’ opinion as an independent entity; while oftentimes, user opinions are used only once for defining the behavioural class of a customer. These processes neglect the relative exclusive association, and the influence of community members over one another in churn management. This paper presents a context-based clustered conversation model for churn complexity management via index-driven opinion within a community of social network users. The essential aim is to cluster opinion about knowledge organization that is scalable, incremental and contextual for an appropriate churn management decision support tool.
A new electronic feedback compensation method for rate integrating gyroscopes

Towards the objective of a rate integrating gyroscope (RIG) without a minimum rate threshold and performance limited only by electrical and mechanical thermal noise, we present our progress on a new, generalized electronic feedback method for the compensation of resonator damping asymmetry (anisodamping) and stiffness asymmetry (anisoelasticity) with a new method of RIG operation using self-precession. This enables overcoming the precession angle-dependent bias error and minimum rate threshold, two issues identified by Lynch for a MEMS RIG [1]. To correct angle-dependent bias, we augment the electronic feedback force of the amplitude regulator with a non-unity gain output distribution matrix selected to correct for anisodamping. Using this method, we have decreased the angle dependent bias error by a factor of 30, resulting a minimum rate threshold of 3.5 dps. To further improve RIG performance, an electronically-induced self-precession rate is incorporated and successfully demonstrated to lower the rate threshold. The RIG's output noise is also evaluated, demonstrating an ARW of 11 mdps/√Hz, similar to rate gyro operation at same amplitude.
Calcul de la référence dans les dialogues oraux et transfert du français vers l'arabe : modélisatin simplifiée de la théorie du gouvernement et du liage

Notre these vise a illustrer la realisation et l’utilisation d’un formalisme (architecture a plusieurs modules) de traitement de la reference a des fins de recherches en traitement automatique de l’oral. Ce travail s’appuyant largement sur une modelisation de la grammaire standard, s’accompagnent de corpus oraux transcrits manuellement avec la mise en pratique de methodes et techniques mises au point qui permettent a notre sens un deploiement vers le traitement automatique de l’oral a grande echelle. Nous ne pretendons pas avoir trouve une solution miracle pour la resolution de la reference. Nous supposons seulement que le traitement des structures coreferentielles orales necessite la mise en pratique de formalismes standards aussi complexe que la theorie du gouvernement et du liage. Longtemps consideree comme ambigue, la structure des textes oraux doit etre abordee comme un objet d’etude a part entiere dans diverses disciplines. La langue orale a sa propre logique mais les formes standards de la langue y apparaissent largement
An Intelligent Electricity Meter RFID Receiving System Based on the Internet of Things Cloud Platform

As an important part of intelligent power Grid, cloud computing is becoming more and more important in the development of intelligent grid with the development of the internet of things cloud platform. This paper introduces the application of cloud computing technology in the intelligent power grid, the working principle of RFID and the hardware design of the meter. The design takes MSP430 low power processor and ADE7848 chip as the core. In order to ensure the validity of the data, the design program reads data from ADE7848 to the memory every 100ms. Design of intelligent meter-reading system based on internet-connected cloud platform based on RFID technology. According to this system, users can observe the electricity usage in real time. Keywords—intelligent electricity meter; MSP430; ADE7848; RFID I. THE CONSTRUCTION OF THE INTERNET OF THINGS
Diffusion multiple et renversement du temps ultrasonore dans des milieux périodiques et désordonnés

Au cours de cette these, nous nous sommes interesses a divers aspects de la propagation d'une onde ultrasonore dans des milieux heterogenes periodiques et desordonnes. Nous avons tout d'abord concu et caracterise des echantillons periodiques, autrement appeles "cristaux phononiques". Ces materiaux se comportent comme des filtres frequentiels et presentent un grand interet technologique et theorique. Nous avons etudie le temps de groupe a la traversee de monocristaux, qui revele un effet analogue a l'effet tunnel en mecanique quantique. Dans une structure de type Fabry-Perot constituee de deux cristaux phononiques, nous avons mis en evidence des resonances en transmission. L'etude du temps de groupe montre un phenomene de piegeage de l'onde dans la cavite, analogue de l'effet tunnel resonant. Les resultats obtenus sont confirmes par la modelisation numerique. Par la suite, des experiences de Retournement Temporel dans les cristaux phononiques ont revele une absence d'hyperfocalisation, caracteristique des milieux desordonnes. Nous avons ensuite cherche a mettre en evidence la diffusion multiple en regime non-lineaire dans les nuages de bulles. A cet effet, nous avons concu un dispositif experimental qui nous a permis de generer des populations de bulles relativement stables et controlees. Plusieurs methodes de caracterisation de la fonction de distribution du rayon des bulles ont ete mises en oeuvre, et l'une d'elles nous a permis d'estimer la fraction volumique de bulles. Les densites de bulles mises en jeu n'ont pas permis de mettre en evidence un regime de diffusion multiple fort, tandis que l'origine des non-linearites observees reste incertaine.
Acute exposure to swine dust causes bronchial hyperresponsiveness in healthy subjects.

Six urban subjects, with little or no previous experience of farm-work, were exposed to dust while weighing swine for 2-5 h. Three subjects experienced toxic symptoms 4-5 h after the beginning of exposure. Bronchial responsiveness increased in all subjects within 6 h (more than three doubling steps difference in a methacholine test). One week later, airway responsiveness had partly normalized. The mean (interquartile range) cumulative dose of methacholine causing a 20% decrease in forced expiratory volume in one second (FEV1) was 3.1 (1.0-6.6) mg, before exposure, fell to 0.13 (0.01-0.76) mg 6 h after exposure (p < 0.02), and was 0.99 (0.42-1.5) mg one week later (n = 5, p < 0.05), Mean (SD) FEV1 decreased 5 (2)%. The concentration of total dust varied between 9 and 14 mg.m-3 and of endotoxin between 0.1 and 0.5 mu g.m-3. Thus inhalation of swine farm dust, caused a marked increase in bronchial responsiveness in non-sensitized subjects.
TapLock: Exploit finger tap events for enhancing attack resilience of smartphone passwords

In this paper, we present TapLock as a smartphone password system that exploits the finger tap events on capacitive touch screens for increasing the password's resilience to shoulder-surfing attacks (where the password input by a user can be easily observed by a bystander over the user's shoulder). TapLock captures the size and the axis length of the finger touch area on the phone screen for creating a password, which cannot be easily observed by a shoulder surfer. Our user study shows that TapLock has several advantages over existing smartphone password systems, including its strong attack resilience, small authentication delay, and haptic input feedback that improves the usability.
Virtual cubic panorama synthesis based on triangular reprojection

Cubic panoramas provide an efficient solution to the implementation of immersive and omnidirectional displays for image‐based virtual navigation. To allow unrestricted navigation through the environment, a system must be capable of constructing novel views given the reference images, typically, cubic panoramas. This paper proposes a processing pipeline for cubic panorama synthesis based on 2D/3D triangular reprojection. This pipeline uses matching features to implement the triangular meshing on cubic panoramas, and introduces the matching line constraint, which significantly reduces the artifacts of straight‐line features in the rendered image and accelerates the division process. The modules of this pipeline take the geometrical characteristics of cubic panorama into account. Thus, it can handle the discontinuities of the cube edges when the triangular mesh covers different faces. Furthermore, these modules could be reconfigured to compose customized pipelines and generate virtual cubic panoramas of different quality based on the amount of features. The performance and efficiency of the proposed pipeline is demonstrated with comparison experiments. Copyright © 2013 John Wiley & Sons, Ltd.
The influence of O2 on SF6 decomposition byproduct formation in spark discharge based on oxygen isotope tracer

Sulfur hexafluoride (SF<inf>6</inf>) is one of the most commonly used insulating mediums in high-voltage electrical equipment. It is known that SF<inf>6</inf> can decompose to lower fluorides of sulfur under electrical discharge, and then these lower fluorides of sulfur will oxidize in the presence of water vapor and oxygen, resulting in the formation of decomposition by-products. Among electrical discharge, spark discharge is one of the most common faults, often induced by the poor contact of fixed metal shield or switch contacts. This paper proposes a method based on oxygen isotope tracer to observe the variations and to analyze the formations of the oxyfluorides, such as SO<inf>2</inf>F<inf>2</inf>, SOF<inf>2</inf>, and SO<inf>2</inf>. By injecting different concentrations of <sup>18</sup>O<inf>2</inf>, a series of spark discharge experiment is carried out. Then, the concentration ratios of the oxyfluorides are analyzed, under different concentration ratios of <sup>18</sup>O<inf>2</inf> to <sup>16</sup>O<inf>2</inf> ([<sup>18</sup>O<inf>2</inf>]/[<sup>16</sup>O<inf>2</inf>]). Finally, the formation mechanisms of the oxyfluorides are discussed based on the experiments.
Cellular immune response to Mycobacterium bovis (BCG) in genetically-susceptible and resistant congenic mouse strains.

Congenic Bcgr (C.D2, resistant) and Bcgs (BALB/c, susceptible) mice were infected intravenously with Mycobacterium bovis (BCG, strain Montreal) in order to establish the relationship between different indicators of the cell-mediated immune response and the bacterial load attained in the host. There was a correlation between the bacterial burden and the splenomegaly response, granuloma formation in the liver and cross-protection against an heterologous pathogen (Listeria monocytogenes) in Bcgr and Bcgs mice. No relationship was found between bacterial load or granuloma formation and the development of specific acquired protection against an homologous organism (BCG or M. tuberculosis, H37Rv) as assessed by the level of resistance attained in BCG-primed mice challenged with virulent H37Rv or by the adoptive immunity conferred by BCG-primed spleen cells transferred to naïve irradiated recipients challenged with BCG.
Formation d'étoile : étude de l'effondrement des coeurs prestellaires

La comprehension des processus conduisant a la formation des etoiles est l'un des enjeux majeurs de l'astrophysique contemporaine. Au sein des nuages conduisant a la formation d'etoiles, les conditions de temperature, pression, etc. sont telles qu'il est impossible de les reproduire par l'experience. C'est pourquoi la simulation numerique reste le seul moyen d'etudier les phenomenes physiques intervenant dans le processus de formation des etoiles et ainsi de verifier la theorie. Ma these est axee autour des methodes numeriques utilisees dans le contexte de la formation d'etoiles, phenomene multi-echelles et hautement non-lineaire, necessitant l'utilisation d'outils bien adaptes. Dans cette these autour de l'etude des premieres phases de l'effondrement de coeurs denses prestellaires, mon travail s'est divise en 4 parties liees. Dans une premiere etude, j'ai utilise un code lagrangien 1D a symetrie spherique (Audit et al. 2002) pour comparer plusieurs modeles traitant plus ou moins precisement le transfert radiatif et l'interaction matiere-rayonnement. Cette comparaison est basee sur des calculs simples d'effondrement gravitationnel conduisant a la formation du premier coeur de Larson. J'ai aussi tire benefice de ce premier travail pour etudier les proprietes du choc d'accretion sur le premier coeur de Larson. Nous avons developpe un modele semi-analytique permettant de reproduire les proprietes de saut au choc en partant d'hypotheses bien connues. Ayant valide les methodes utilisees precedemment, nous avons retenu l'approche de diffusion a flux limite que j'ai ensuite integree avec les equations de l'hydrodynamique radiative dans le code AMR RAMSES (Teyssier 2002). Apres validation des schemas implementes, nous avons utilise RAMSES pour realiser des effondrements multidimensionnels avec champ magnetique et transfert radiatif. Nous avons ainsi realise les premieres simulations combinant les effets du champ magnetique et du transfert radiatif aux petites echelles avec une grande precision. Nos resultats montrent que le transfert radiatif a un impact significatif sur la fragmentation au cours de l'effondrement des coeurs denses prestellaires. Enfin, j'ai realise une comparaison du code RAMSES (approche eulerienne) et du code SPH DRAGON (Goodwin 2004, approche lagrangienne). Nous avons etudie l'impact de la resolution numerique sur la conservation du moment angulaire et la fragmentation. Nous avons montre qu'en utilisant des criteres de resolution forts et bien superieurs aux criteres usuels de la litterature, les deux outils convergent et semblent donc bien adaptes a la formation d'etoiles.