cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Underdetermined Dyson-Schwinger equations
Creators: name: Bender, Carl M.
name: Karapoulitidis, Christos
name: Klevansky, S. P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper examines the effectiveness of the Dyson-Schwinger (DS) equations as a calculational tool in quantum field theory. The DS equations are an infinite sequence of coupled equations that are satisfied exactly by the connected Green's functions $G_n$ of the field theory. These equations link lower to higher Green's functions and, if they are truncated, the resulting finite system of equations is underdetermined. The simplest way to solve the underdetermined system is to set all higher Green's function(s) to zero and then to solve the resulting determined system for the first few Green's functions. The $G_1$ or $G_2$ so obtained can be compared with exact results in solvable models to see if the accuracy improves for high-order truncations. Five $D=0$ models are studied: Hermitian $ϕ^4$ and $ϕ^6$ and non-Hermitian $iϕ^3$, $-ϕ^4$, and $iϕ^5$ theories. The truncated DS equations give a sequence of approximants that converge slowly to a limiting value but this limiting value always {\it differs} from the exact value by a few percent. More sophisticated truncation schemes based on mean-field-like approximations do not fix this formidable calculational problem.
description: 5 pages plus 6 figures main text and 4 pages with 3 figures of supplementary material
E-ECONOMY. ECONOMIC DOCTRINE COMPONENT / E-ECONOMIA. COMPONENTA DOCTRINAR ECONOMICĂ
Creators: name: Brindusa Sterpu Covaci
Publisher: name: Zenodo
Year: 2023

description: E-ECONOMY. ECONOMIC DOCTRINE COMPONENT / E-ECONOMIA. COMPONENTA DOCTRINAR ECONOMICĂ (PH.D. DISSERTATION / TEZĂ DE DOCTORAT)
Comment le couple décrit-il son processus d'adaptation aux conséquences de la fibromyalgie ?
Creators: name: Brunner, Laetitia
name: Piguet, Stéphanie
Publisher: name: Unknown
Year: 0
Subjects: subject: fibromyalgie
subject: couple
subject: soins infirmiers
subject: soins à domicile
subject: adaptation

description: Cette recherche qualitative de type exploratoire et descriptive vise à relever les stratégies d'adaptation qu'élaborent les couples, dont la femme est atteinte de fibromyalgie.
description: Mémoire de fin d'études, Volée Automne 04
On birational transformations of Hilbert schemes of points on K3 surfaces
Creators: name: Beri, Pietro
name: Cattaneo, Alberto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J50, 14C05, 14C34, 32G13

description: We classify the group of birational automorphisms of Hilbert schemes of points on algebraic K3 surfaces of Picard rank one. We study whether these automorphisms are symplectic or non-symplectic and if there exists a hyperkähler birational model on which they become biregular. We also present new geometrical constructions of these automorphisms.
description: 18 pages. Exposition improved, review of the theory of Pell's equation moved to appendix. Remark 3.7 added, some minor results removed
An Operational Definition of Topological Order
Creators: name: Jamadagni, Amit
name: Weimer, Hendrik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The unrivaled robustness of topologically ordered states of matter against perturbations has immediate applications in quantum computing and quantum metrology, yet their very existence poses a challenge to our understanding of phase transitions. However, a comprehensive understanding of what actually constitutes topological order is still lacking. Here we show that one can interpret topological order as the ability of a system to perform topological error correction. We find that this operational approach corresponding to a measurable both lays the conceptual foundations for previous classifications of topological order and also leads to a successful classification in the hitherto inaccessible case of topological order in open quantum systems. We demonstrate the existence of topological order in open systems and their phase transitions to topologically trivial states. Our results demonstrate the viability of topological order in nonequilibrium quantum systems and thus substantially broaden the scope of possible technological applications.
description: 7 pages, 5 figures; Supplementary - 5 pages, 3 figures
Les émotions du soignant accompagnant le deuil périnatal
Creators: name: Bovey, Noémie
Publisher: name: Unknown
Year: 0
Subjects: subject: deuil périnatal
subject: émotion
subject: maternité
subject: soins infirmiers

description: Le but de cette recherche est de porter un regard réflexif sur la fonction des émotions dans un accompagnement professionnel de parents confrontés au deuil périnatal.
Macromischa Cressoni André, 1887, nov. sp.
Creators: name: André, E
Publisher: name: Zenodo
Year: 1887
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Macromischa
Macromischa cressoni

description: Macromischa Cressoni nov. sp. Ouvrière: Tète à peu près circulaire, à peine plus large que longue, fortement arrondie en di'mi-cercle en arrière. Mandibules dentées à leur bord terminal. Épistome triangulaire, son bord antérieur arqué, non échancré, son extrémité postérieure légèrement avancée entre l’insertion des antennes. Aire frontale triangulaire, •aiguë en arrière; sillon frontal indistinct. Arêtes frontales courtes, peu élevées. Yeux petits, globuleux, situés à peu près au milieu des côtés de la tête. Antennes de 12 articles; scape long, un peu arqué à sa base, épaissi à son extrémité, dépassant beaucoup en arrière lé bord postérieur de la tête; tous les articles du funicule allongés, le premier article plus long que le second qui est le plus court de tous, les suivants sont à peu près d’égale longueur, sauf les trois derniers qui forment une massue assez grêle, moins longue que le reste du funicule. Thorax assez allongé; pronotum rétréci en avant en forme de cou, élargi en arrière. Vu de côté, le thorax est assez régulièrement arqué depuis l'avant jusqu’à la suture métanolale marquée par un profond étranglement. A partir de ce point le metanotum se relève en ligne droite et, se termine en arrière par deux épines très longues, aiguës, très rapprochées à leur base, très divergentes au sommet. Premier article du pétiole longuement cylindrique en avant, surmonté en arrière d’une sorte d’écaille épaisse, étroite et peu élevée; second article nodiforme, ovale, bas, un peu plus long que large, plus large mais moins haut que le nœud du premier article. Abdomen ovale, non tronqué en avant. Pattes longues, cuisses fortement claviformes en leur milieu; pas d’éperons aux pattes intermédiaires et postérieures. Entièrement d'un rouge brun, tarses plus clairs, abdomen d’un brun noir. Mandibules presque lisses et luisantes. Tête et thorax grossièrement ridés-réticulés, peu luisants; pétiole et abdomen lisses et luisants ainsi que les pattes. Pilosité longue et peu abondante,.scapes et tibias avec de longs poils dressés. - Long, 3 3/4 mill. Mexique. Je dois un exemplaire de cette curieuse espèce à M. Geo. B. Cresson,
description: Published as part of André, E, 1887, Description de quelques fourmis nouvelles ou imparfaitement connues., pp. 280-298 in Revue d'Entomologie (Caen) 6 on page 296
Les hommes en blanc
Creators: name: Bochatay, Mélanie
name: Foresti, Delphine
Publisher: name: Unknown
Year: 0
Subjects: subject: infirmier
subject: infirmière
subject: homme
subject: motivation
subject: profession infirmière
subject: genre

description: Les objectifs exprimés de cette recherche sont : - Comprendre les motivations des hommes d'aujourd'hui à entrer dans la profession infirmière - Grâce aux résultats mis en évidence, promouvoir la formation pour qu'elle s'ouvre de plus en plus aux hommes - Combler l'absence de recherche sur ce thème ou compléter des aspects non traités
description: Mémoire de fin d'études, Volée Automne 04
N-linked glycosylation of proteins in the protozoan parasite Toxoplasma gondii
Creators: name: Luk, Flora C.Y.
name: Johnson, Terezina M.
name: Beckers, Con J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: Toxoplasma gondii is an obligate intracellular parasite of animal cells. Infection of humans is common and may result in devastating disease, especially in immunocompromised individuals. Despite previous reports that N-glycosylation of proteins may be a rare post-translational modification in this and related organisms, we demonstrate that it is actually quite prevalent in Toxoplasma. N-glycosylation is completely inhibited by treatment of parasites with tunicamycin, but this does not appear to exert its major effect on the parasites until they have egressed from their host cells. Although the tunicamycin-treated parasites appear structurally normal at this time they are not motile and mostly incapable of invading new host cells. The few tunicamycin-treated parasites that do invade are severely affected in their ability to replicate and accumulate with a distended endoplasmic reticulum, deformed nuclei, and without recognizable late secretory organelles. We provide experimental evidence that indicate that Toxoplasma N-glycans differ structurally from those in other eukaryotes.
The growth of intermediate mass black holes through tidal captures and tidal disruption events
Creators: name: Rizzuto, Francesco Paolo
name: Naab, Thorsten
name: Rantala, Antti
name: Johansson, Peter H.
name: Ostriker, Jeremiah P.
name: Stone, Nicholas C.
name: Liao, Shihong
name: Irodotou, Dimitrios
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present $N\mathrm{-body} $ simulations, including post-Newtonian dynamics, of dense clusters of low-mass stars harbouring central black holes (BHs) with initial masses of 50, 300, and 2000 $\mathrm{M_{\odot}}$. The models are evolved with the $N\mathrm{-body} $ code \textsc{bifrost} to investigate the possible formation and growth of massive BHs by the tidal capture of stars and tidal disruption events (TDEs). We model star-BH tidal interactions using a velocity-dependent drag force, which causes orbital energy and angular momentum loss near the BH. About $\sim 20-30$ per cent of the stars within the spheres of influence of the black holes form Bahcall-Wolf cusps and prevent the systems from core collapse. Within the first 40 Myr of evolution, the systems experience 500 up to 1300 TDEs, depending on the initial cluster structure. Most ($> 95$ per cent) of the TDEs originate from stars in the Bahcall-Wolf cusp. We derive an analytical formula for the TDE rate as a function of the central BH mass, density and velocity dispersion of the clusters ($\dot{N}_{\mathrm{TDE}} \propto M\mathrm{_{BH}} ρσ^{-3}$). We find that TDEs can lead a 300 $\mathrm{M_{\odot}}$ BH to reach $\sim 7000 \mathrm{M_{\odot}}$ within a Gyr. This indicates that TDEs can drive the formation and growth of massive BHs in sufficiently dense environments, which might be present in the central regions of nuclear star clusters.
description: 17 pages, 18 figures
Differential inhibition of cellular and viral pp60src kinase by P1,P4-di(adenosine-5')tetraphosphate.
Creators: name: Maness, P F
name: Sorge, L K
name: Levy, B T
name: Drum, C C
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1983

description: We contrasted the protein kinase activities of pp60v-src, the transforming protein of Rous sarcoma virus, and its normal cellular homolog pp60c-src with respect to inhibition by P1,P4-di(adenosine-5')tetraphosphate by using the immune complex protein kinase assay. The concentration of P1,P4-di(adenosine-5')tetraphosphate required for 50% inhibition of pp60v-src kinase (1 microM) was found to be significantly lower than that required for inhibition of pp60c-src kinase (46 microM). Viral and cellular pp60src kinases differed to a lesser extent with respect to inhibition by adenosine-5'-tetraphosphate, di(guanosine-5')tetraphosphate, and ADP. No significant differences were found in the ATP Km values of pp60v-src (0.108 +/- 0.048 microM) and pp60c-src kinases (0.056 +/- 0.012 microM). These results demonstrate that the protein kinase activities of viral and cellular pp60src are functionally distinguishable, particularly on the basis of enhanced sensitivity of the viral enzyme to inhibition by P1,P4-di(adenosine-5')tetraphosphate. These functional differences are likely to be due to differences in the conformation of the active site and may be important for determining transformation potential.
Interrelations among frustration-free models via Witten's conjugation
Creators: name: Wouters, Jurriaan
name: Katsura, Hosho
name: Schuricht, Dirk
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We apply Witten's conjugation argument [Nucl. Phys. B 202, 253 (1982)] to spin chains, where it allows us to derive frustration-free systems and their exact ground states from known results. We particularly focus on $\mathbb{Z}_p$-symmetric models, with the Kitaev and Peschel--Emery line of the axial next-nearest neighbour Ising (ANNNI) chain being the simplest examples. The approach allows us to treat two $\mathbb{Z}_3$-invariant frustration-free parafermion chains, recently derived by Iemini et al. [Phys. Rev. Lett. 118, 170402 (2017)] and Mahyaeh and Ardonne [Phys. Rev. B 98, 245104 (2018)], respectively, in a unified framework. We derive several other frustration-free models and their exact ground states, including $\mathbb{Z}_4$- and $\mathbb{Z}_6$-symmetric generalisations of the frustration-free ANNNI chain.
The role of N defects in paramagnetic CrN at finite temperatures from first-principles
Creators: name: Mozafari, Elham
name: Alling, Björn
name: Steneteg, Peter
name: Abrikosov, Igor A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Simulations of defects in paramagnetic materials at high temperature constitute a formidable challenge to solid state theory due to the interaction of magnetic disorder, vibrations, and structural relaxations. CrN is a material where these effects are particularly large due to a strong magneto-lattice coupling and a tendency for deviations from the nominal 1:1 stoichiometry. In this work we present a first-principles study of nitrogen vacancies and nitrogen interstitals in CrN at elevated temperature. We report on formation energetics, the geometry of interstital nitrogen dimers, and impact on the electronic structure caused by the defects. We find a vacancy formation energy of 2.28 eV with a small effect of temperature, a formation energy for N interstitial in the form of a $\big<111\big>$ oriented split-bond of 3.77 eV with an increase to 3.97 at 1000 K. Vacancies are found to add three electrons while split bond interstitial adds one electron to the conduction band. The band gap of defect-free CrN is smeared out due to vibrations, though it is difficult to draw conclusion about the exact temperature at which the band gap closes from our calculations. However, it is clear that at 900 K there is a non-zero density of electronic states at the Fermi level. At 300 K our results indicate a boarder case were the band-gap is about to close.
description: 21 pages, 5 figures, 1 table, movies as supplementary material
title: Séjour de mobilité étudiante imposé à la PHBern: entre langue honnie et mauvaises compétences, quel dispositif d’accompagnement?
Creators: name: Robin, Jésabel
Publisher: name: L'Harmattan
Year: 2017

description: Nos précédents travaux de recherche, ancrés en didactique des langues et des cultures, ont porté sur le rapport au français des étudiants de la Pädagogische Hochschule Bern (PHBern), en Suisse alémanique. L’analyse qualitative de divers types de récits d’expériences a notamment permis de mettre en lumière toute une série de représentations du français et de confirmer que de nombreux futurs enseignants germanophones du primaire présentent des résistances à l’encontre du français, c’est-à-dire à l’encontre d’un de leurs futurs objets d’enseignement. À la peur et aux souffrances qui sont bien souvent liées à l’apprentissage de cette langue, dite «étrangère» par leurs plans d’études, viennent s’ajouter des exigences institutionnelles élevées en termes de compétences à atteindre. Si le stage pratique d’enseignement du français et les expériences de mobilité imposés par la formation professionnelle se révèlent être des lieux potentiellement pivots de ces rapports ambiguës à l’égard du français, les dynamiques sont cependant loin d’être systématiquement ascensionnelles. Nos travaux ont par ailleurs mis en évidence la nécessité d’articuler les enjeux d’une formation à la fois professionnelle et académique et ceux, linguistiques, culturels et identitaires, de ces expériences de mobilité en région francophone. Nous envisageons à présent la suite logique et concrète de nos précédents travaux sous forme de recherche-action. Il s’agit de la mise en place d’un dispositif systémique de préparation, accompagnement et réinvestissement de ces expériences de mobilité. Basé sur les approches réflexives, un dispositif pilote serait testé puis ajusté en vue de la conception pérenne d’un dispositif «sur mesure». Fonctionnel mais flexible, celui-ci devrait être à même de considérer les contextes macro-, méso- et microsociaux des expériences de mobilité afin de leur accorder visibilité et reconnaissance au niveau institutionnel d’une part, et de permettre d’autre part, aux «acteurs forcés» de la mobilité d’appréhender la complexité de leur vécu, voire de renégocier leur rapport au français.
Expression of the chicken c-src gene in COS cells.
Creators: name: Gilmer, T M
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1984

description: The cellular homolog of the Rous sarcoma virus transforming gene (v-src) was cloned into a plasmid containing the simian virus 40 origin of replication and transcriptional signals. This recombinant plasmid, designated pSVOHCS11 , directs the synthesis of relatively high levels of c-src mRNA and c-src protein ( pp60c -src), when the plasmid is studied 48 to 72 h after calcium phosphate-mediated DNA transfection of COS (monkey) cells. The level of c-src mRNA synthesis is 50-fold higher than the amount of c-src RNA produced in uninfected chicken embryo fibroblasts. Furthermore, the level of pp60c -src expressed in pSVOHCS11 -transfected COS cells is approximately the same as that of pp60v -src in Rous sarcoma virus-transformed cells. Using this recombinant plasmid, we demonstrated that c-src mRNA contains sequences which map 3' to the previously identified c-src-v-src regions of homology. In view of the small amount of c-src mRNA and protein that can be isolated from uninfected cells, this transient expression system offers a convenient source of material for further analyses of the c-src gene product.
VLSI Implementation of TDC Architectures Used in PET Imaging Systems
Creators: name: Ozdemir, Mehmet Akif
name: Tangel, Ali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Hardware Architecture (cs.AR)
subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Positron emission tomography (PET) is a medical imaging method based on the measurement of concentrations of positron-emitting radionuclides in a living body. In the PET imaging system, glucose is labeled with a positron-emitting radionuclide and injected intravenously. Then, the positrons move through the tissue and collide with the electrons of the cells in which they interact. As a result of this interaction, two gamma rays are emitted in the opposite direction. Gama rays emitted from cancerous tissue that has retained radioactive glucose are detected through ring-shaped detectors. And the detected signals are converted into an electrical response. Subsequently, these responses are sampled with electronic circuits and recorded as histogram matrix to generate the image set. The gamma rays may not reach the detectors located in the opposite position in equal time. In PETs having TOF characteristics, it is aimed to obtain better positioning information by a method based on the principle of measuring the difference between the reach time of the two photons to detectors. The measurement of the flight time is carried out with TDC structures. The measurement of this time difference at the ps level is directly related to the spatial resolution of the PET system. In this study, 45 nm CMOS VLSI simulations of TDC structures that have various architectural approaches were performed for use in PET systems. With the designed TDC architectures, two gamma photons time reach to detectors have been simulated and the time difference has been successfully digitized. In addition, various performance metrics such as input and output voltages, time resolutions, measurement ranges, and power analysis of TDC architectures have been determined. Proposed Vernier oscillator-based TDC architecture has been reached 25 ps time resolution with a low power consumption of 1.62681 mW at 1V supply voltage.
description: 8 pages, in Turkish language. 6 figures, conference paper,International Marmara Sciences Congess (IMASCON 2019 SPRING), https://www.imascon.com/dosyalar/imascon2019bahar/imascon_fen_bildiriler_ciltII_bahar_2019.pdf , https://avesis.kocaeli.edu.tr/yayin/99073ee1-45ff-495e-9cab-42de4d0fad71/vlsi-implementation-of-tdc-architectures-used-in-pet-imaging-systems
title: La pratique avancée en Suisse
title: état de la question et perspectives d'avenir pour la pratique infirmière
titleType: Subtitle
Creators: name: Bassin, Florence
Publisher: name: Unknown
Year: 0
Subjects: subject: politique sanitaire
subject: pratique professionnelle
subject: formation infirmière
subject: rôle infirmier
subject: Suisse

description: Le premier chapitre porte sur la définition de la discipline infirmière et la pratique avancée, et dans le deuxième, la théorie et les entretiens sont mis en lien avec le contexte actuel du système de santé suisse.
description: Mémoire de fin d'études, Volée Automne 04
title: Des mots pour ces maux : l'accompagnement infirmier d'adolescents suicidants dans un service de pédiatrie hospitalière
title: entre idéal et réalité
titleType: Subtitle
Creators: name: May, Vinciane
Publisher: name: Unknown
Year: 0
Subjects: subject: adolescent
subject: suicide
subject: soins infirmiers en pédiatrie

description: Comment les soignants d'un service de pédiatrie hospitalière considèrent l'accompagnement d'adolescents suicidants dans leur pratique infirmière? Cette recherche ouvre des pistes de réflexion pour proposer un accompagnement de qualité à des jeunes suicidants. Le jury a relevé la rigueur de la démarche ainsi que la richesse des informations sur le sujet choisi.
description: Mémoire de fin d'études volée Printemps 04
Laser cooling of molecules
Creators: name: Chae, Eunmi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: A recent progress on laser cooling of molecules is summarized. Since the development during 1980s for atomic species, laser cooling has been the very beginning step to cool and trap atoms for frontier research on quantum simulations, quantum sensing and precision measurements. Despite the complex internal structures of molecules, laser cooling of molecules have been realized with the deepened understanding of molecular structures and interaction between light and molecules. The development of laser technology over the last decades have also been a great aid for laser cooling of molecules because many lasers are necessary to successfully cool the molecules. A detailed principle and development of laser cooling of molecules as well as the current status of the field are reviewed to give an introductory of the growing field of ultracold molecular physics.
description: 13 pages, 13 figures
Physiologically motivated multiplex Kuramoto model describes phase diagram of cortical activity
Creators: name: Sadilek, Maximilian
name: Thurner, Stefan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: Biological Physics (physics.bio-ph)
subject: Medical Physics (physics.med-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We derive a two-layer multiplex Kuramoto model from weakly coupled Wilson-Cowan oscillators on a cortical network with inhibitory synaptic time delays. Depending on the coupling strength and a phase shift parameter, related to cerebral blood flow and GABA concentration, respectively, we numerically identify three macroscopic phases: unsynchronized, synchronized, and chaotic dynamics. These correspond to physiological background-, epileptic seizure-, and resting-state cortical activity, respectively. We also observe frequency suppression at the transition from resting-state to seizure activity.
description: 8 pages, 3 figures
DS6, Deformation-aware Semi-supervised Learning: Application to Small Vessel Segmentation with Noisy Training Data
Creators: name: Chatterjee, Soumick
name: Prabhu, Kartik
name: Pattadkal, Mahantesh
name: Bortsova, Gerda
name: Sarasaen, Chompunuch
name: Dubost, Florian
name: Mattern, Hendrik
name: de Bruijne, Marleen
name: Speck, Oliver
name: Nürnberger, Andreas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: I.2.6; I.4.6
subject: 68T07 (Primary) 68T45 (Secondary)

description: Blood vessels of the brain provide the human brain with the required nutrients and oxygen. As a vulnerable part of the cerebral blood supply, pathology of small vessels can cause serious problems such as Cerebral Small Vessel Diseases (CSVD). It has also been shown that CSVD is related to neurodegeneration, such as Alzheimer's disease. With the advancement of 7 Tesla MRI systems, higher spatial image resolution can be achieved, enabling the depiction of very small vessels in the brain. Non-Deep Learning-based approaches for vessel segmentation, e.g., Frangi's vessel enhancement with subsequent thresholding, are capable of segmenting medium to large vessels but often fail to segment small vessels. The sensitivity of these methods to small vessels can be increased by extensive parameter tuning or by manual corrections, albeit making them time-consuming, laborious, and not feasible for larger datasets. This paper proposes a deep learning architecture to automatically segment small vessels in 7 Tesla 3D Time-of-Flight (ToF) Magnetic Resonance Angiography (MRA) data. The algorithm was trained and evaluated on a small imperfect semi-automatically segmented dataset of only 11 subjects; using six for training, two for validation, and three for testing. The deep learning model based on U-Net Multi-Scale Supervision was trained using the training subset and was made equivariant to elastic deformations in a self-supervised manner using deformation-aware learning to improve the generalisation performance. The proposed technique was evaluated quantitatively and qualitatively against the test set and achieved a Dice score of 80.44 $\pm$ 0.83. Furthermore, the result of the proposed method was compared against a selected manually segmented region (62.07 resultant Dice) and has shown a considerable improvement (18.98\%) with deformation-aware learning.
title: Les adolescents de 11 à 15 ans confrontés au tabagisme
title: les compétences des adolescents pour faire face au tabagisme
titleType: Subtitle
Creators: name: Mendes, Fernando
Publisher: name: Unknown
Year: 0
Subjects: subject: adolescent
subject: tababisgme
subject: prévention

description: L’adolescence est une phase particulière de la vie de tout individu. C’est une phase pendant laquelle l’adolescent se transforme tant sur le plan physique que cognitif. C’est aussi une phase de quête d’identité, de sensations nouvelles et pendant laquelle l’adolescent a besoin d’affirmer sont statut. Pour cela, il adopte parfois des comportements à risque parmi lesquels se trouve la consommation de cigarettes. Le but de cette recherche consiste à déterminer le niveau d’intégration des messages de prévention tabagique et la façon dont les adolescents utilisent ces informations lorsqu’ils sont confrontés au tabagisme (entretiens avec des adolescents de 11 à 15 ans dans trois maisons de quartier de la ville de Genève). Les résultats obtenus démontrent que malgré une bonne intégration des informations véhiculées par les messages de prévention, les adolescents manquent de compétences efficaces pour lutter contre le tabagisme. Enfin, des actions pour améliorer la situation sont proposées en fonction de ces résultats. Ces actions sont principalement en lien avec le rôle autonome de l’infirmière scolaire et la collaboration avec le réseau de santé.
title: L'offre en soins auprès de la personne âgée souffrant de constipation perçue par les infirmières du CMS
title: une approche éducative au travers du prisme d'une vision humaniste
titleType: Subtitle
Creators: name: Fiori, Federica
Publisher: name: Unknown
Year: 0
Subjects: subject: personne âgée
subject: soins à domicile
subject: constipation
subject: éducation du patient
subject: offre en soins

description: Ce mémoire vise à décrire et à expliciter la nature de la fonction éducative soignante des infirmières du CMS auprès de personnes âgées vivant à domicile et souffrant de constipation. Il s'agit d'une recherche de type qualitatif qui consiste à donner la parole auy professionnelles du CMS. Des entretiens semi-dirigés ont été réalisés auprès de trois infirmières travaillant chacune dans un CMS différent. Le jury a relevé les qualités suivantes : - capacité à faire vivre les cadres de références et les compétences - pratique réflexive
Characterization of yeast strains with conditionally expressed variants of ribosomal protein genes tcm1 and cyh2.
Creators: name: Loechel, S
name: Teem, J
name: Fried, H M
name: Nam, H G
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1985

description: We placed a regulatory sequence derived from the GAL10 locus of Saccharomyces cerevisiae at various distances from the start sites of transcription of two yeast ribosomal protein genes, tcm1 and cyh2. The hybrid ribosomal protein genes were transcribed at wild-type levels in the presence of galactose. In the absence of galactose, the hybrid genes were transcribed either at a reduced level or essentially not at all. Yeast cells which transcribe the ribosomal protein genes at a reduced rate continued to grow, suggesting that enhanced translation of the ribosomal protein mRNA may permit an adequate rate of synthesis of the corresponding protein. Consistent with this suggestion is the finding that preexisting mRNA decayed at a reduced rate when transcription was halted abruptly by removal of galactose. Yeast cells unable to transcribe tcm1 or cyh2 without galactose did not grow. These conditional lethal strains demonstrate that the ribosomal proteins encoded by tcm1 and cyh2 are essential; furthermore, these strains are potentially useful for isolating mutations in the tcm1 and cyh2 proteins affecting their transport, assembly, or function.
title: Quand les infirmières racontent leurs émotions
title: au coeur d'une posture professionnelle authentique
titleType: Subtitle
Creators: name: Cudre, Delphine
Publisher: name: Unknown
Year: 0
Subjects: subject: infirmière
subject: pratique professionnelle
subject: émotion
subject: reconnaissance sociale
subject: motivation

description: Ce mémoire de fin d’étude porte sur la considération du vécu émotionnel de l’infirmière comme outil pour une posture professionnelle authentique et porteuse de sens. Le cadre de référence est composé de trois concepts, à savoir les émotions, la reconnaissance et la motivation. Quatre infirmières livrent, sous la forme d’un journal de bord, dix journées de leur travail. Un entretien semi-dirigé est réalisé avec ces infirmières afin de mettre en perspective leurs écrits. On constate que la régulation émotionnelle est nécessaire pour offrir des soins de qualité, pour ne pas être submergée par les multiples sollicitations, pour rester motivée et professionnelle. Les moments dits « informels » jouent un rôle fondamental dans le quotidien de chacune. Les participantes soulignent qu’être professionnelle c’est être soi-même et rester authentique.
On improved convergence conditions and bounds for Markov chains
Creators: name: Veretennikov, A. Yu.
name: Veretennikova, M. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J05, 60J10

description: Improved rates of convergence for ergodic Markov chains and relaxed conditions for them, as well as analogous convergence results for some non-homogeneous Markov chains are studied. The setting from the previous works is extended. Examples are provided where the new bounds are better and where they give the same convergence rate as in the classical Markov -- Dobrushin inequality.
description: 35 pages, 25 references
3D Printing: Developing Countries Perspectives
Creators: name: Ishengoma, Fredrick R.
name: Mtaho, Adam B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: For the past decade, 3D printing (3DP) has become popular due to availability of low-cost 3D printers such as RepRap and Fab@Home; and better software, which offers a broad range of manufacturing platform that enables users to create customizable products. 3DP offers everybody with the power to convert a digital design into a three dimensional physical object. While the application of 3DP in developing countries is still at an early stage, the technology application promises vast solutions to existing problems. This paper presents a critical review of the current state of art of 3DP with a particular focus on developing countries. Moreover, it discusses the challenges, opportunities and future insights of 3DP in developing countries. This paper will serve as a basis for discussion and further research on this area.
description: 4 pages, International Journal of Computer Applications Volume 104-Number 11, 2014
The process of migrating web applications to the Microsoft Azure Cloud
Creators: Benyamin Hadian  Zarkeshmoghadam
Publisher: name: University of Alberta Library
Year: 2024

This report delineates the comprehensive migration process of a few web applications to the Microsoft Azure Cloud, a strategic initiative successfully executed. The migration, driven by the need for enhanced scalability, flexibility, availability, security, and cost-effectiveness, aimed to leverage Azure's dynamic infrastructure. Key elements of the process include the selection of Microsoft Azure services, meticulous pre-migration planning, seamless data migration, and the fine-tuning of application configurations.

The selected web application, WordPress Content Management System (CMS), was meticulously chosen for its robust features and widespread usage. Rigorous compatibility assessments were conducted, guiding the adoption of diverse migration strategies, embracing both Platform as a Service (PaaS) and Software as a Service (SaaS) models. The implementation strategies, such as Subdirectory-based  Multisite and Subdomains-based Multisite offer nuanced optimization possibilities. Subdomains contribute to organizational structure, which is ideal for complex content frameworks, while subdirectories cater to smaller websites with streamlined content needs. This dual  The approach ensures flexibility in performance enhancement, aligning with the specific requirements of the migrated web application.

Testing and optimization phases ensured data integrity, functionality, and overall performance on the Azure platform. Insights gained from Microsoft's use of WordPress on Azure were incorporated, contributing to the robustness of the migration.

This report offers an extensive description of the technical steps involved, the challenges encountered, and the lessons learned during the migration. It acts as a valuable reference for organizations considering a similar transition to Microsoft Azure, offering practical recommendations based on real-world experiences. The successful execution of this migration underscores the strategic advantages of adopting Azure for web application hosting.
A global decomposition theorem for excluding immersions in graphs with no edge-cut of order three
Creators: name: Liu, Chun-Hung
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: A graph $G$ contains another graph $H$ as an immersion if $H$ can be obtained from a subgraph of $G$ by splitting off edges and removing isolated vertices. There is an obvious necessary degree condition for the immersion containment: if $G$ contains $H$ as an immersion, then for every integer $k$, the number of vertices of degree at least $k$ in $G$ is at least the number of vertices of degree at least $k$ in $H$. In this paper, we prove that this obvious necessary condition is "nearly" sufficient for graphs with no edge-cut of order 3: for every graph $H$, every $H$-immersion free graph with no edge-cut of order 3 can be obtained by an edge-sum of graphs, where each of the summands is obtained from a graph violating the obvious degree condition by adding a bounded number of edges. The condition for having no edge-cut of order 3 is necessary. A simple application of this theorem shows that for every graph $H$ of maximum degree $d \geq 4$, there exists an integer $c$ such that for every positive integer $m$, there are at most $c^m$ unlabelled $d$-edge-connected $H$-immersion free $m$-edge graphs with no isolated vertex, while there are superexponentially many unlabelled $(d-1)$-edge-connected $H$-immersion free $m$-edge graphs with no isolated vertex. Our structure theorem will be applied in a forthcoming paper about determining the clustered chromatic number of the class of $H$-immersion free graphs.
pp60c-src in the developing cerebellum.
Creators: name: Fults, D W
name: Maness, P F
name: Lauder, J M
name: Towle, A C
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1985

description: pp60c-src was localized in the cerebellum of developing chicken embryos by immunoperoxidase staining with antisera raised against bacterially expressed pp60v-src. Immunoreactivity (IR) appeared in the cerebellum of the chicken embryos at the time of neuronal differentiation. pp60c-src IR was detected in regions of the developing cerebellum where processes of developing neurons and glia are located. In the early embryo (stage 17), pp60c-src IR was localized in the marginal zone of the cerebellar plate. By stage 40, pp60c-src IR was localized in the process-rich molecular layer of the cerebellum and between the cells of the developing internal granular layer. Cell bodies of cerebellar neurons did not show pp60c-src IR at any stage of development. Mitotically active neuroepithelial cells of the metencephalon did not express pp60c-src before the onset of differentiation in the early embryo, nor did proliferating cells of the external granular layer express pp60c-src at later stages. Although it is not possible to ascertain whether pp60c-src is localized in developing neurons or glia at the light microscope level, the time of its appearance and pattern of distribution in the molecular layer is suggestive of a localization within the developing neuronal processes which compose the bulk of this layer. Biochemical analyses of pp60c-src in the developing cerebellum by the immune complex protein kinase activity and sensitivity of the kinase to inhibition by P1,P4-di(adenosine-5')tetraphosphate confirmed that the expression of pp60c-src coincided with the time of neuronal differentiation. We conclude from these results that in the central nervous systems, pp60c-src may be more important in an aspect of cell differentiation or a mature neuronal function than in the proliferation of neuronal or glial precursors.
Stability of the manifold boundary approximation method for reductions of nuclear structure models
Creators: name: Imbrišak, M.
name: Nomura, K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The framework of nuclear energy density functionals has been employed to describe nuclear structure phenomena for a wide range of nuclei. Recently, statistical properties of a given nuclear model, such as parameter confidence intervals and correlations, have received much attention, particularly when one tries to fit complex models. We apply information-theoretic methods to investigate stability of model reductions by the manifold boundary approximation method (MBAM). In an illustrative example of the density-dependent point-coupling model of the relativistic energy density functional, utilizing Monte Carlo simulations, it is found that main conclusions obtained from the MBAM procedure are stable under variation of the model parameters. Furthermore, we find that the end of the geodesic occurs when the determinant of the Fisher information metric vanishes, thus effectively separating the parameter space into two disconnected regions.
description: 12 pages, 7 figures, 1 table. arXiv admin note: text overlap with arXiv:1606.08617 by other authors
Studying quantum algorithms for particle track reconstruction in the LUXE experiment
Creators: name: Funcke, Lena
name: Hartung, Tobias
name: Heinemann, Beate
name: Jansen, Karl
name: Kropf, Annabel
name: Kühn, Stefan
name: Meloni, Federico
name: Spataro, David
name: Tueysuez, Cenk
name: Yap, Yee Chinn
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2022
Subjects: quantum electrodynamics: nonperturbative
positron: production
potential: quantum
positron: trajectory
computer: quantum

description: ACAT 2021, ACAT 2021, Daejeon, South Korea, 29 Nov 2021 - 3 Dec 2021; 6 pp. (2022).
description: The LUXE experiment (LASER Und XFEL Experiment) is a new experiment in planning at DESY Hamburg, which will study Quantum Electrodynamics (QED) at the strong-field frontier. In this regime, QED is non-perturbative. This manifests itself in the creation of physical electron-positron pairs from the QED vacuum. LUXE intends to measure the positron production rate in this unprecedented regime by using, among others, a silicon tracking detector. The large number of expected positrons traversing the sensitive detector layers results in an extremely challenging combinatorial problem, which can become computationally very hard for classical computers. This paper presents a preliminary study to explore the potential of quantum computers to solve this problem and to reconstruct the positron trajectories from the detector energy deposits. The reconstruction problem is formulated in terms of a quadratic unconstrained binary optimisation. Finally, the results from the quantum simulations are discussed and compared with traditional classical track reconstruction algorithms.
Algebraic intersection for translation sufaces in a family of Teichműller disks
Creators: name: Cheboui, Smaïl
name: Kessi, Arezki
name: Massart, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37D40, 37D50

description: The setting is a square-tiled surface X. We study the quantity KVol, defined as the supremum over all pairs of closed curves, of their algebraic intersection divided by the product of their length, times the volume of X (so as to make it scaling-invariant). We give a hyperbolic-geometric construction to compute KVol in a family of Teichműller disks of square-tiled surfaces.
description: 25 pages, 15 figures
title: La théorie de la césarienne du confort
title: l’accompagnement des femmes dans le processus de décision du mode d’accouchement
titleType: Subtitle
Creators: name: Moser, Laura
Publisher: name: Unknown
Year: 0
Subjects: subject: grossesse
subject: accompagnement
subject: rôle infirmier
subject: accouchement
subject: césarienne
subject: décision

description: La question que pose ce travail de type exploratoire et descriptif est celle de la place de l’infirmière dans la problématique de la césarienne dite de convenance ou de confort. Cette recherche aborde les concepts de la promotion de la santé et d’accompagnement infirmier auprès des futures mamans. Elle analyse aussi la perception que les professionnels ont du phénomène de césarienne et ce qu’ils perçoivent de leur rôle en matière d’information et de guidance dans la prise de décision. Le jury a relevé la qualité de la problématique ainsi que des choix méthodologiques bien argumentés.
Specific regions of beta-globin RNA are resistant to nuclease digestion in RNA-protein complexes in chicken reticulocyte nuclei.
Creators: name: Chae, C B
name: Patton, J R
name: Ross, D A
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1985

description: The interaction between beta-globin RNA and proteins in chicken reticulocyte nuclei was studied by determining the sequence of nuclease-resistant beta-globin RNA. Two types of nuclease-resistant RNAs were isolated for this study: endogenous nuclease-resistant RNA from 50S heterogeneous nuclear RNA-protein complexes and micrococcal nuclease-resistant nuclear RNA from whole nuclei. The nuclease-resistant regions were identified with the use of a RNA mapping method we recently developed (J.R. Patton and C.-B. Chae, J. Biol. Chem. 258:3991-3995, 1983). We found that beta-globin RNA is assembled into heterogeneous nuclear RNA-protein complexes in a specific manner. There are several regions of nuclease resistance in the first and third exons interrupted at regular intervals by sensitive regions. The second exon has only one nuclease-resistant region. The resistant regions range in size from 20 to 50 nucleotides. This organization may reflect a specific mode of assembly for heterogeneous nuclear RNA-protein complexes.
Adenovirus E1A coding sequences that enable ras and pmt oncogenes to transform cultured primary cells.
Creators: name: Ruley, H E
name: Moomaw, J
name: Maruyama, K
name: Moran, B
name: Grodzicker, T
name: Zerler, B
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1986

description: Plasmids expressing partial adenovirus early region 1A (E1A) coding sequences were tested for activities which facilitate in vitro establishment (immortalization) of primary baby rat kidney cells and which enable the T24 Harvey ras-related oncogene and the polyomavirus middle T antigen (pmt) gene to transform primary baby rat kidney cells. E1A cDNAs expressing the 289- and 243-amino acid proteins expressed both E1A transforming functions. Mutant hrA, which encodes a 140-amino acid protein derived from the amino-terminal domain shared by the 289- and 243-amino acid proteins, enabled ras (but not pmt) to transform and facilitated in vitro establishment to a low, but detectable, extent. These studies suggest that E1A functions which collaborate with ras oncogenes and those which facilitate establishment are linked. Furthermore, E1A transforming functions are not associated with activities of the 289-amino acid E1A proteins required for efficient transcriptional activation of viral early region promoters.