cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Looking for signs of Anisotropic Cosmological Expansion in the High-z Supernova data
Creators: name: Bochner, Brett
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Several problematical epochs in cosmology, including the recent period of structure formation (and acceleration), require us to understand cosmic evolution during times when the basis of FRW expansion, the cosmological principle, does not completely hold true. We consider that the breakdown of isotropy and homogeneity at such times may be an important key towards understanding cosmic evolution. To study this, we examine fluctuations in the high-z supernova data to search for signs of large-scale anisotropy in the Hubble expansion. Using a cosmological-model-independent statistical analysis, we find mild evidence of real anisotropy in various circumstances. We consider the significance of these results, and the importance of further searches for violations of the cosmological principle.
description: 6 pages, 8 figures. (Adapted from Poster presented at the 22nd Texas Symposium. Includes minor fixes from the originally published Proceedings paper.) This work is an early analysis of Supernova data available during 2003-2004. To be followed by a fuller analysis of the more complete Supernova data sets becoming available in subsequent years
Band-Insulator-Metal-Mott-Insulator transition in the half--filled $t-t^{\prime}$ ionic-Hubbard chain
Creators: name: Japaridze, G. I.
name: Hayn, R.
name: Lombardo, P.
name: Müller-Hartmann, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the ground state phase diagram of the half-filled $t-t^{\prime}$ repulsive Hubbard model in the presence of a staggered ionic potential $Δ$, using the continuum-limit bosonization approach. We find, that with increasing on-site-repulsion $U$, depending on the value of the next-nearest-hopping amplitude $t^{\prime}$, the model shows three different versions of the ground state phase diagram. For $t^{\prime} < t^{\prime}_{\ast}$, the ground state phase diagram consists of the following three insulating phases: Band-Insulator at $U U_{c}$. For $t^{\prime} > t^{\prime}_{c}$ there is only one transition from a spin gapped metallic phase at $U U_{c}$. Finally, for intermediate values of the next-nearest-hopping amplitude $t^{\prime}_{\ast} < t^{\prime} < t^{\prime}_{c}$ we find that with increasing on-site repulsion, at $U_{c1}$ the model undergoes a second-order commensurate-incommensurate type transition from a band insulator into a metallic state and at larger $U_{c2}$ there is a Kosterlitz-Thouless type transition from a metal into a ferroelectric insulator.
description: 9 pages 3 figures
Ριζικό κακό και Άουσβιτς: οι προσεγγίσεις της Hannah Arendt και του Hans Jonas:
Creators: name: Ιντζεβίδου, Δήμητρα Ευάγγελου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: ριζικό κακό
ολοκληρωτισμός
Άουσβιτς
radical evil
totalitarianism
Auschwitz

description: Σκοπός της έρευνας αυτής ήταν η μελέτη του ριζικού κακού, μέσα από το απόλυτο παράδειγμα του Άουσβιτς, της περιόδου του 20ου αιώνα. Εξετάστηκε ο ορισμός του απόλυτου κακού, όπως διαμορφώνεται και ελίσσεται μέσα στη σκέψη της Hannah Arendt, όταν από τη γενική αντίληψη των ολοκληρωτικών καθεστώτων εστιάζει στο φαινόμενου της κοινοτοπίας του κακού, μέσα από το πορτραίτο του Άιχμαν. Μέσα στο πλαίσιο αυτό, δόθηκε η κοινωνική και πολιτική έκταση, που έλαβε το κακό στο Ολοκαύτωμα, και προσεγγίστηκε μια πολλά υποσχόμενη λύση, για να μην ξανασυμβεί κάτι παρόμοιο, η κριτική σκέψη και ο αναστοχασμός της ιστορίας. Έπειτα, εξετάστηκε η θεολογική σκοπιά του ζητήματος μέσα από την προσέγγιση του Hans Jonas και τη δική του νέα αντίληψη για τον «Θεό μετά το Άουσβιτς». Αναλύθηκαν τα χαρακτηριστικά του νέου Θεού, η σχέση του με τον άνθρωπο και η ελευθερία που απέκτησε ο δεύτερος, που τον βαραίνει στις αποφάσεις που πρέπει να πάρει για τον κόσμο, τον ίδιο και τον δημιουργό του. Επίσης, έγινε λόγος και για τον μεγαλύτερο φόβο του ανθρώπου, τον θάνατο, αλλά και τις μεταθάνατον ή μεταφυσικές προεκτάσεις που φέρει το αντίθετό του η αθανασία. Τέλος, πραγματεύτηκε η έννοια της ευθύνης της ανθρωπότητας, τόσο απέναντι στην κοινωνία, δηλαδή στους άλλους ανθρώπους, όσο και απέναντι στον Θεό.
description: The purpose of this research was the study of radical evil, through the absolute example of the Holocaust, at the time of the 20th century. The definition of absolute evil has been examined, as it configured and maneuvered into the thought of Hannah Arendt, where she focuses to the phenomenon of banality of evil, through the portrait of Eichmann, from the general perception of the totalitarian regimes. In this context, the social and political extend, that took the Holocaust evil, has been given, and has been approached a very promising solution, for something like this never happened again: the critical thought and the rethinking of history. Then the theological perception of the topic has been examined, through the approach of Hans Jonas and his new conception of “the God after Auschwitz”. The features of the new God, his relationship with the man and the freedom of man, which oppresses him for the decisions he must take for the world, himself and his creator, have been analyzed. Also, we have discussed about the biggest fear of man, which is the fear of death, and the afterlife and metaphysical extensions which derived from its opposite, namely the immortality. At the end, it has been taken under discussion the meaning of responsibility of humanity, as much across the society, meaning the people, as across God.
Customizing ImageJ
Creators: name: Haase, Robert
Publisher: name: F1000 Research Limited
Year: 2021

description: These slides give an introduction to user interfacre customization in ImageJ using ImageJ Macro and to ImageJ Macro Markdown.

 Big thanks to Jerome Mutterer (IBMP) and Nicolas De Francesco (IMBICE) who shared material openly I reused when making these slides.

 Supplementary material is available as well under this doi: 10.5281/zenodo.4561714
Maximum Performance at Minimum Cost in Network Synchronization
Creators: name: Nishikawa, Takashi
name: Motter, Adilson E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Chaotic Dynamics (nlin.CD)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We consider two optimization problems on synchronization of oscillator networks: maximization of synchronizability and minimization of synchronization cost. We first develop an extension of the well-known master stability framework to the case of non-diagonalizable Laplacian matrices. We then show that the solution sets of the two optimization problems coincide and are simultaneously characterized by a simple condition on the Laplacian eigenvalues. Among the optimal networks, we identify a subclass of hierarchical networks, characterized by the absence of feedback loops and the normalization of inputs. We show that most optimal networks are directed and non-diagonalizable, necessitating the extension of the framework. We also show how oriented spanning trees can be used to explicitly and systematically construct optimal networks under network topological constraints. Our results may provide insights into the evolutionary origin of structures in complex networks for which synchronization plays a significant role.
description: 29 pages, 9 figures, accepted for publication in Physica D, minor corrections
Ο πατριάρχης Κωνσταντινουπόλεως Αντώνιος Β’ (893-901):
Creators: name: Βασιλειάδης, Αναστάσιος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Πατριάρχης
Αντώνιος
Κωνσταντινούπολη
Patriarch
Antony
Constantinople

description: Σκοπός της διατριβής ήταν η παρουσίαση της προσωπικότητας του πατριάρχη Κωνσταντινουπόλεως Αντωνίου Β’ (893-901). Εξετάζοντας τις πηγές που αναφέρονται στον εν λόγω πατριάρχη, παρουσιάσαμε αναλυτικά την ζωή του μέχρι την άνοδο του στον πατριαρχικό θρόνο της Κωνσταντινούπολης. Για την πατριαρχεία του βιογραφούμενου προσώπου, μας απασχόλησαν δύο γεγονότα, η στάση του πατριάρχη Αντωνίου Β’ για τον δεύτερο και τρίτο γάμο του αυτοκράτορα Λέων Στ’ και η ένωση της μερίδας, της οποίας αρχηγός ήταν ο μητροπολίτης Νεοκαισαρείας Στυλιανός Μάππας, με την εκκλησίας της Κωνσταντινούπολης. Επίσης, αναδείξαμε την ίδρυση μονής από τον Αντώνιο Β’, παρουσιάζοντας αρκετά στοιχεία γύρω από αυτήν. Τέλος, αναφερθήκαμε στους λόγους αγιοποίησης του Αντωνίου Β’.
description: Αγγλική Περίληψη The aim of the present thesis was the study of the figure of patriarch Constantinople Anthony II (893-901). We examined the resources, which referred to the patriarch Anthony II and we presented analytically his life until he became patriarch of Constantinople. For the years which he was patriarch, we presented two facts, the position of patriarch Anthony II about the second and the third marriage of the emperor Leo VI and the reunion of a small party, which leader was metropolitan Neocesareia Stylianos Mappas, with the main body of the Byzantine Church. Also, we referred to the monastery which patriarch Anthony founded, introducing a lot of informations about it. Finally, we mentioned the reasons why patriarch Anthony became saint.
Απομάκρυνση χρωστικών από υδατικά συστήματα με την τεχνική της βιορρόφησης με χρήση του ζυμομύκητα Saccharomyces Cerevisiae:
Creators: name: Αμούντζια, Ιουλία Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Βιορρόφηση
Ζυμομύκητα
Χρωστικές
Biosorption
Yeast
Dyes

description: Σκοπός της διατριβής ήταν η μελέτη της απομάκρυνσης χρωστικών, με την τεχνική της βιορρόφησης με χρήση του ζυμομύκητα Saccharomyces Cerevisiae. Οι χρωστικές που μελετήθηκαν ήταν τρείς και ανήκουν στην κατηγορία των χρωμάτων αντίδρασεις. Πραγματοποιήθηκαν πειράματα βιορρόφησης και βιοεκρόφησης με ενεργή και ανενεργή βιομάζα, στα οποία μελετήθηκε η επίδραση του ρH, η αρχική συγκέντρωση της χρωστικής, ο χρόνος επαφής και η ιονική ισχύς. Στη συνέχεια μελετήθηκε η δράση των ενώσεων μεσολαβητών στην ταχύτητα της βιορρόφησης των χρωστικών. Έπειτα ακολούθησαν πειράματα για την ανίχνευση και τη δράση των ενζύμων λακκάση και αζωαναγωγάση στο εξωκυττάριο υγρό. Ακολούθησαν πειράματα αναγέννησης, στα οποία εξετάστηκε η επίδραση του ρH καθώς επίσης και διαδοχικοί κύκλοι ρόφησης – εκρόφησης προκειμένου να διαπιστωθεί η βιοανθεκτικότητα του ζυμομύκητα και η πιθανή μελλοντική χρήση του στη βιομηχανία ως βιορροφητικό. Τέλος, ο χαρακτηρισμός των υλικών πραγματοποιήθηκε με τις απαραίτητες και συνηθισμένες βιβλιογραφικά τεχνικές χαρακτηρισμού, που είναι η φασματοσκοπία υπερύθρου (FT-IR), UV-Vis και η χρωματογραφία TLC.
description: The aim of the present thesis was the study of removal of dyes with the technique of biossorption by using the Saccharomyces Cerevisiae as a biosorbent. The dyes were studied are three and belong to the reactive colors. Experiments were biossorption and desorption with active and inactive biomass, which studied the effect of Ph , the initial concentration of the dye , the contact time and the ionic strength . Then we studied the effect of the compounds mediators speed of biosorption dyes . After subsequent experiments for the detection and the action of enzymes laccase and azoanagogasi in the extracellular fluid . Experiments regeneration , which examined the effect of Ph as well as successive cycles of sorption - desorption to determine the stability of yeast and its possible future use in the industry as biosorbent . Finally , characterization of material held by the necessary and conventional literature characterization techniques , which is the infrared spectroscopy (FT-IR), UV-Vis and chromatography TLC.
3D Fully Convolutional Neural Networks with Intersection Over Union Loss for Crop Mapping from Multi-Temporal Satellite Images
Creators: name: Mohammadi, Sina
name: Belgiu, Mariana
name: Stein, Alfred
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Information on cultivated crops is relevant for a large number of food security studies. Different scientific efforts are dedicated to generating this information from remote sensing images by means of machine learning methods. Unfortunately, these methods do not take account of the spatial-temporal relationships inherent in remote sensing images. In our paper, we explore the capability of a 3D Fully Convolutional Neural Network (FCN) to map crop types from multi-temporal images. In addition, we propose the Intersection Over Union (IOU) loss function for increasing the overlap between the predicted classes and ground reference data. The proposed method was applied to identify soybean and corn from a study area situated in the US corn belt using multi-temporal Landsat images. The study shows that our method outperforms related methods, obtaining a Kappa coefficient of 91.8%. We conclude that using the IOU loss function provides a superior choice to learn individual crop types.
description: Accepted by IGARSS 2021
A Component Based Heuristic Search method with Adaptive Perturbations for Hospital Personnel Scheduling
Creators: name: Li, Jingpeng
name: Aickelin, Uwe
name: Burke, Edmund
Publisher: name: arXiv
Year: 2008
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: Nurse rostering is a complex scheduling problem that affects hospital personnel on a daily basis all over the world. This paper presents a new component-based approach with adaptive perturbations, for a nurse scheduling problem arising at a major UK hospital. The main idea behind this technique is to decompose a schedule into its components (i.e. the allocated shift pattern of each nurse), and then mimic a natural evolutionary process on these components to iteratively deliver better schedules. The worthiness of all components in the schedule has to be continuously demonstrated in order for them to remain there. This demonstration employs a dynamic evaluation function which evaluates how well each component contributes towards the final objective. Two perturbation steps are then applied: the first perturbation eliminates a number of components that are deemed not worthy to stay in the current schedule; the second perturbation may also throw out, with a low level of probability, some worthy components. The eliminated components are replenished with new ones using a set of constructive heuristics using local optimality criteria. Computational results using 52 data instances demonstrate the applicability of the proposed approach in solving real-world problems.
NCIP Hub and Cancer Genomics Cloud Pilots – Two U.S. National Cancer Institute Initiatives
Creators: name: Ishwar Chandramouli
name: Klemm, Juli
name: Davidsen, Tanja
name: Kerlavage, Anthony
name: Kibbe, Warren
Publisher: name: F1000Research
Year: 2015

description: One of the objectives of the U.S. National Cancer Institute’s Center for Biomedical Informatics and Information Technology is to focus on innovative programs and technologies to support the use of informatics in cancer research and encourage open science. We have several initiatives underway that are designed to enhance community driven software development, democratize access to cancer data, tools & standards as well encourage innovative approaches that improve access to software applications & build scientific communities that enable deep collaboration around specific research questions. This poster is on two of the initiatives – NCIP Hub and Cancer Genomics Cloud Pilots.
Living conditions: classification of households using the Kohonen algorithm
Creators: name: Ponthieux, Sophie
name: Cottrell, Marie
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: JEL codes: I310, I320, C450

description: In the analysis of poverty and social exclusion, indicators of living conditions are some interesting non-monetary complements to the usual measurements in terms of current or annual income. Living conditions depend in fact on longer term factors than income, and provide further information on households' actual resources that allow to compare more accurately between living standards. But in counterpart, a difficulty comes from the qualitative nature of the information, and the large number of dimensions and items that may be taken into account; in other words, living conditions are difficult to "measure". A consequence is that very often, the information is either used only partly, or reduced into a global score of (bad) living conditions, that results from counting "negative" items, and the qualitative dimension is lost. In this paper, we propose to use the Kohonen algorithm first to describe how the elements of living conditions are combined, and secondly to classify households according to their living conditions. The main interest of a classification is to make appear not only quantitative differences in the "levels" of living conditions, but also qualitative differences within similar "levels".
description: Extended version of a paper presented in ACSEG 2000 conference in Paris (dec 2000)
A Novel Approach to Gene Expression Analysis of Ethnicities
Creators: name: Prathik Naidu
Publisher: name: F1000Research
Year: 2015

description: Microarrays are important tools to measure the gene expression levels in cells. However, these technologies have major limitations, such as their inability to detect genetic aberrations. A computational method was developed and implemented to analyze gene expression patterns more efficiently than current technologies. This approach was applied to biologically understand the gene expression patterns in the American European, Great British, and Yoruba African ethnic groups. Initial results showed that 74 genes with the lowest p-value and the largest log(FPKM) expression value were the most differentially expressed. Protein modeling for the isoforms of these genes indicated differences primarily in cellular processes. The CCL4L1 gene was chosen for further analysis, and indicated higher expression and binding affinity in the Yoruba population, suggesting greater ability for HIV inhibition. The results gleaned from this method can assist in the development of targeted cancer therapeutics and optimized drug designs for ethnicities.
The 3rd IBIS/ISGRI soft gamma-ray survey catalog
Creators: name: Bird, A. J.
name: Malizia, A.
name: Bazzano, A.
name: Barlow, E. J.
name: Bassani, L.
name: Hill, A. B.
name: Belanger, G.
name: Capitanio, F.
name: Clark, D. J.
name: Dean, A. J.
name: Fiocchi, M.
name: Gotz, D.
name: Lebrun, F.
name: Molina, M.
name: Produit, N.
name: Renaud, M.
name: Sguera, V.
name: Stephen, J. B.
name: Terrier, R.
name: Ubertini, P.
name: Walter, R.
name: Winkler, C.
name: Zurita, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we report on the third soft gamma-ray source catalog obtained with the IBIS/ISGRI gamma-ray imager on board the INTEGRAL satellite. The scientific dataset is based on more than 40 Ms of high quality observations performed during the first three and a half years of Core Program and public IBIS/ISGRI observations. Compared to previous IBIS/ISGRI surveys, this catalog includes a substantially increased coverage of extragalactic fields, and comprises more than 400 high-energy sources detected in the energy range 17-100 keV, including both transients and faint persistent objects which can only be revealed with longer exposure times.
description: Accepted for publication in ApJ Suppl.; 11 pages; 4 figures Minor changes to content
Caring for a child with a progressive illness during the complex chronic phase: parents’ experience of facing adversity
Creators: name: Fundy-Gravelle, Anna Marie
Publisher: name: University of British Columbia
Year: 2009

description: Due to improving health care, increasing numbers of children who are affected with a progressive illness are surviving for longer periods with a complex chronic condition (Mullins et al., 1991; Tucker & Roberts, 1990). A complex chronic condition is characterized by progression of the child’s illness to a point such that they require specialized, time-consuming, and sometimes round-the-clock care. The terminal phase of illness, however, may be months or even years away. The recent trend towards home care (Seaton, 1991) means that parents must attempt to meet their child’s complex and multiple needs, as well as the many needs of the family as a whole. Continuous 24-hour care of these children is emotionally and physically exhausting for parents. The purpose of this study was to explore and describe the experience of parents caring for their child with a progressive life-threatening illness during the time the child was living with a complex chronic condition. The naturalistic research design of phenomenology was chosen for the study’s methodology. Five mothers and three couples (mothers and fathers) of children with progressive illnesses participated in a series of interviews. Parents’ perspectives on their experiences were elicited and transcribed. Their accounts became the data for analysis. Data collection and analysis were concurrent. Parents’ experiences of caring for their child were conceptualized as an ongoing process of “Facing Adversity”, characterized by defining and managing adversity. This thesis describes, from parents’ perspectives, how adversity was defined and managed. Concepts of normalization and chronic sorrow are considered in the conceptualization, as are the challenges of caregiving (particularly of mothers) who faced many hardships in their role, including the myriad of changes or transitions related to the increased burden of care. Parents’ experiences with the health care system are examined. While parents felt there were enough services to meet the needs of their family, and that respite care was an especially valuable service, they were overwhelmingly frustrated with the bureaucracy involved with health care delivery. Existing respite care services only partially met parents’ respite needs. Implications for nursing practice, education and research are identified.
Mott insulating states with competing orders in the triangular lattice Hubbard model
Creators: name: Wietek, Alexander
name: Rossi, Riccardo
name: Šimkovic, Fedor
name: Klett, Marcel
name: Hansmann, Philipp
name: Ferrero, Michel
name: Stoudenmire, E. Miles
name: Schäfer, Thomas
name: Georges, Antoine
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The physics of the triangular lattice Hubbard model exhibits a rich phenomenology, ranging from a metal-insulator transition, intriguing thermodynamic behavior, and a putative spin liquid phase at intermediate coupling, ultimately becoming a magnetic insulator at strong coupling. In this multimethod study, we combine a finite-temperature tensor network method, minimally entangled thermal typical states (METTS), with two Green-function-based methods, connected-determinant diagrammatic Monte Carlo and cellular dynamical mean-field theory, to establish several aspects of this model. We elucidate the evolution from the metallic to the insulating regime from the complementary perspectives brought by these different methods. We compute the full thermodynamics of the model on a width-four cylinder using METTS in the intermediate to strong coupling regime. We find that the insulating state hosts a large entropy at intermediate temperatures, which increases with the strength of the coupling. Correspondingly, and consistently with a thermodynamic Maxwell relation, the double occupancy has a minimum as a function of temperature which is the manifestation of the Pomeranchuk effect of increased localization upon heating. The intermediate coupling regime is found to exhibit both pronounced chiral as well as stripy antiferromagnetic spin correlations. We propose a scenario in which time-reversal symmetry-broken states compete with stripy-spin states at lowest temperatures.
description: (23 pages, 18 figures)
Chaotic Accretion in a Non-Stationary Electromagnetic Field of a Slowly Rotating Compact Star
Creators: name: Mirza, Babur M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate charge accretion in vicinity of a slowly rotating compact star with a non-stationary electromagnetic field. Exact solutions to the general relativistic Maxwell equations are obtained for a star formed of a highly degenerate plasma with a gravitational field given by the linearized Kerr metric. These solutions are used to formulate and then to study numerically the equations of motion for a charged particle in star's vicinity using the gravitoelectromagnetic force law. The analysis shows that close to the star charge accretion does not always remain ordered. It is found that the magnetic field plays the dominant role in the onset of chaos near the star's surface.
description: 9 pages, 4 figures
Cosmological Constraints on Gravitino LSP Scenario with Sneutrino NLSP
Creators: name: Kanzaki, Toru
name: Kawasaki, Masahiro
name: Kohri, Kazunori
name: Moroi, Takeo
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the scenario where a sneutrino is the next lightest supersymmetric particle (NLSP) and decays into a gravitino and standard model particles. The daughter particles such as neutrinos and quarks cause electro- and hadronic showers and affect big-bang nucleosynthesis. It is found that despite a small branching ratio, four-body processes including quarks in the final state give the most stringent constraint on the sneutrino abundance for gravitino mass of 1 $-$ 100 GeV. Pion production by high energy neutrinos is important when the sneutrinos decay at $\sim$ 1 sec. We also discuss the thermal leptogenesis in the sneutrino NLSP scenario.
description: 20 pages, 6 figures
Combining Left-Right And Quark-Lepton Symmetries In 5D
Creators: name: Coulthurst, Andrew
name: Doukas, Jason
name: McDonald, Kristian L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A five dimensional model containing both left-right and quark-lepton symmetries is constructed, with the gauge group broken by a combination of orbifold compactification and the Higgs mechanism. An analysis of the gauge and scalar sectors is performed and it is shown that the 5d model admits a simpler scalar sector. Bounds on the relevant symmetry breaking scales are obtained and reveal that two neutral gauge bosons may appear in the TeV energy range to be explored by the LHC. Split fermions are employed to remove the mass relations implied by the quark-lepton symmetry and the necessary fermion localisation is achieved by introducing bulk scalars with kink vacuum profiles. The symmetries of the model constrain the Yukawa sector, which in turn severely constrains the extent to which realistic split fermion scenarios may be realized in the absence of Yukawa coupling hierarchies. Nevertheless we present two interesting one generation constructs. One of these provides a rationale for $m_t>m_b, m_τ$ and $m_ν\ll m_t$ with Yukawa parameters which vary by only a factor of five. The other also suppresses the proton decay rate by spatially separating quarks and leptons but requires a Yukawa parameter hierarchy of order $10^2$.
description: 16 pages with 3 figures; V2 is PRD version
Quantum Cooling Evaporation Process in Regular Black Holes
Creators: name: Myung, Yun Soo
name: Kim, Yong-Wan
name: Park, Young-Jai
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate a universal behavior of thermodynamics and evaporation process for the regular black holes. We newly observe an important point where the temperature is maximum, the heat capacity is changed from negative infinity to positive infinity, and the free energy is minimum. Furthermore, this point separates the evaporation process into the early stage with negative heat capacity and the late stage with positive heat capacity. The latter represents the quantum cooling evaporation process. As a result, the whole evaporation process could be regarded as the inverse Hawking-Page phase transition.
description: 11 pages, 3 figures, version to appear in Phys. Lett. B
Crystallization of medium length 1-alcohols in mesoporous silicon: An X-ray diffraction study
Creators: name: Henschel, Anke
name: Huber, Patrick
name: Knorr, Klaus
Publisher: name: arXiv
Year: 2008
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The linear 1-alcohols n-C16H33OH, n-C17H35OH, n-C19H37OH have been imbibed and solidified in lined up, tubular mesopores of silicon with 10 nm and 15 nm mean diameters, respectively. X-ray diffraction measurements reveal a set of six discrete orientation states (''domains'') characterized by a perpendicular alignment of the molecules with respect to the long axis of the pores and by a four-fold symmetry about this direction, which coincides with the crystalline symmetry of the Si host. A Bragg peak series characteristic of the formation of bilayers indicates a lamellar structure of the spatially confined alcohol crystals in 15 nm pores. By contrast, no layering reflections could be detected for 10 nm pores. The growth mechanism responsible for the peculiar orientation states is attributed to a nano-scale version of the Bridgman technique of single-crystal growth, where the dominant growth direction is aligned parallelly to the long pore axes. Our observations are analogous to the growth phenomenology encountered for medium length n-alkanes confined in mesoporous silicon (Phys. Rev. E 75, 021607 (2007)) and may further elucidate why porous silicon matrices act as an effective nucleation-inducing material for protein solution crystallization.
description: 4 pages, 4 figures, to appear as a Brief Report in Physical Review E
Diffraction Considerations for Planar Detectors in the Few-Mode Limit
Creators: name: Chuss, David T.
name: Wollack, Edward J.
name: Moseley, S. Harvey
name: Withington, Stafford
name: Saklatvala, George
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Filled arrays of bolometers are currently being employed for use in astronomy from the far-infrared through millimeter parts of the electromagnetic spectrum. Because of the large range of wavelengths for which such detectors are applicable, the number of modes supported by a pixel will vary according to the specific application of a given available technology. We study the dependence of image fidelity and induced polarization on the size of the pixel by employing a formalism in which diffraction due to the pixel boundary is treated by propagating the second-order statistical correlations of the radiation field through a model optical system. We construct polarized beam pattern images of square pixels for various ratios of p/λwhere p is the pixel size and λis the wavelength of the radiation under consideration. For the limit in which few modes are supported by the pixel (p/λ<1), we find that the diffraction due to the pixel edges is non-negligible and hence must be considered along with the telescope diffraction pattern in modeling the ultimate spatial resolution of an imaging system. For the case in which the pixel is over-moded (p/λ>1), the geometric limit is approached as expected. This technique gives a quantitative approach to optimize the imaging properties of arrays of planar detectors in the few-mode limit.
description: 20 pages, 8 figures
Σχολιασμένη μετάφραση:
Creators: name: Νανά, Ελένη Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Μετάφραση
Σχολιασμένη
Αρκτική
Translation
Annotated
Arctic

description: Η εργασία αυτή αποτελεί τη σχολιασμένη μετάφραση του επιστημονικού άρθρου με τίτλο «Η Αρκτική αντιμέτωπη με την κλιματική αλλαγή» του Claude Kergomard. Η εργασία αποτελείται από τέσσερα τμήματα: πρωτότυπο κείμενο και μετάφρασμα, γλωσσάρι όρων, τεκμηρίωση ορολογίας και μεταφραστικές δυσκολίες που εντοπίστηκαν καθώς και λύσεις που επιλέχθηκαν.
description: This study consists of the annotated translation of the scientific article entitled “L’arctique face au changement climatique”, written by Claude Kergomard. The study is composed of four parts: original text and its translation, glossary, terminology documentation, translation difficulties and chosen solutions.
Strong feedback and current noise in nanoelectromechanical systems
Creators: name: Usmani, O.
name: Blanter, Ya. M.
name: Nazarov, Yu. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate the feasibility of a strong feedback regime for a single-electron tunneling device weakly coupled to an underdamped single-mode oscillator. In this regime, mechanical oscillations are generated and the current is strongly modified whereas the current noise is parametrically big with respect to the Poisson value. This regime requires energy dependence of the tunnel amplitudes. For sufficiently fast tunnel rates the mechanical contribution to current noise can exceed the Poisson value even beyond the strong feedback regime.
description: 4 pages, 3 figures
Optical Polarimetry of the Jets of Nearby Radio Galaxies: I. The Data
Creators: name: Perlman, Eric S.
name: Padgett, C. A.
name: Georganopoulos, Markos
name: Sparks, William B.
name: Biretta, John A.
name: O'Dea, Christopher P.
name: Baum, Stefi A.
name: Birkinshaw, Mark
name: Worrall, D. M.
name: Dulwich, Fred
name: Jester, Sebastian
name: Martel, Andre
name: Capetti, Alessandro
name: Leahy, J. Patrick
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an overview of new HST imaging polarimetry of six nearby radio galaxies with optical jets. These observations triple the number of extragalactic jets with subarcsecond-resolution optical polarimetry. We discuss the polarization characteristics and optical morphology of each jet. We find evidence of high optical polarization, averaging 20%, but reaching upwards of $\sim 50%$ in some objects, confirming that the optical emission is synchrotron, and that the components of the magnetic fields perpendicular to the line of sight are well ordered. We find a wide range of polarization morphologies, with each jet having a somewhat different relationship between total intensity and polarized flux and the polarization position angle. We find two trends in all of these jets. First, jet ``edges'' are very often associated with high fractional optical polarizations, as also found in earlier radio observations of these and other radio jets. In these regions, the magnetic field vectors appear to track the jet direction, even at bends, where we see particularly high fractional polarizations. This indicates a strong link between the local magnetic field and jet dynamics. Second, optical flux maximum regions are usually well separated from maxima in fractional polarization and often are associated with polarization minima. This trend is not found in radio data and was found in our optical polarimetry of M87 with HST. However, unlike in M87, we do not find a general trend for near-90$^\circ$ rotations in the optical polarization vectors near flux maxima. We discuss possibilities for interpreting these trends, as well as implications for jet dynamics, magnetic field structure and particle acceleration.
description: 32 pages, 8 figures, 1 reduced. ApJ, in press
Critical properties of spherically symmetric black hole accretion in Schwarzschild geometry
Creators: name: Mandal, Ipsita
name: Ray, Arnab K.
name: Das, Tapas Kumar
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The stationary spherically symmetric accretion flow in the Schwarzschild metric has been set up as an autonomous first-order dynamical system, and it has been studied completely analytically. Of the three possible critical points in the flow, the one that is physically realistic behaves like the saddle point of the standard Bondi accretion problem. One of the two remaining critical points exhibits the strange mathematical behaviour of being either a saddle point or a centre-type point, depending on the values of the flow parameters. The third critical point is always unphysical and behaves like a centre-type point. The treatment has been extended to pseudo-Schwarzschild flows for comparison with the general relativistic analysis.
description: 8 pages, 4 figures, mn2e.cls used
title: Технология машиностроения. Сборник практических занятий
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2025

description: Учебное пособие состоит из четырнадцати практических занятий, включающих теоретический материал, контрольные вопросы по теме, задания, порядок и примеры выполнения заданий, а также приложения, которые содержат справочный материал, необходимый для выполнения практических занятий по курсу «Технология машиностроения». Подготовлено в соответствии с Федеральным государственным образовательным стандартом высшего образования. Учебное пособие предназначено для обучающихся по укрупненной группе специальностей и направлений подготовки «Машиностроение», изучающих дисциплину «Технология машиностроения», и может быть использовано также при выполнении курсовых проектов по указанной дисциплине и при выполнении выпускных квалификационных работ. Также учебное пособие может быть полезным для технологов промышленных предприятий.
Modeling wealth distribution in growing markets
Creators: name: Basu, Urna
name: Mohanty, P. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Finance (q-fin.GN)
subject: General Physics (physics.gen-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We introduce an auto-regressive model which captures the growing nature of realistic markets. In our model agents do not trade with other agents, they interact indirectly only through a market. Change of their wealth depends, linearly on how much they invest, and stochastically on how much they gain from the noisy market. The average wealth of the market could be fixed or growing. We show that in a market where investment capacity of agents differ, average wealth of agents generically follow the Pareto-law. In few cases, the individual distribution of wealth of every agent could also be obtained exactly. We also show that the underlying dynamics of other well studied kinetic models of markets can be mapped to the dynamics of our auto-regressive model.
description: 5 pages, 4 eps figures, revtex4
Additional file 5 of The emerging role of lysine succinylation in ovarian aging
Creators: name: Le, Meiling
name: Li, Jia
name: Zhang, Dalei
name: Yuan, Yuan
name: Zhou, Chong
name: He, Jinxia
name: Huang, Jian
name: Hu, Liaoliao
name: Luo, Tao
name: Zheng, Liping
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Astronomical and Space Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Additional file 5.
Coisotropic embeddings in Poisson manifolds
Creators: name: Cattaneo, A. S.
name: Zambon, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Symplectic Geometry (math.SG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53D17; 53D55; 70G45

description: We consider existence and uniqueness of two kinds of coisotropic embeddings and deduce the existence of deformation quantizations of certain Poisson algebras of basic functions. First we show that any submanifold of a Poisson manifold satisfying a certain constant rank condition sits coisotropically inside some larger cosymplectic submanifold, which is naturally endowed with a Poisson structure. Then we give conditions under which a Dirac manifold can be embedded coisotropically in a Poisson manifold, extending a classical theorem of Gotay.
description: Several proofs have been shortened and simplified. Final version, to appear in Trans. A.M.S. 24 pages
Effectiveness of the Canadian International Development agency’s approach to environmental impact assessment
Creators: name: Akolo, Akonyu G.
Publisher: name: University of British Columbia
Year: 2009

description: This thesis reviews the Canadian International development Agency (CIDA)’s approach to Environmental Impact Assessment (ETA) for major development projects. Two cases are studied in the thesis as examples of CIDA’s approach to ETA: The Three Gorges Dam in the People’s Republic of China, and the Mae Moh Mine and Power Plant in Thailand. The thesis uses fifteen criteria grouped into four sets to determine the effectiveness of the EIAs of the two cases studied. The four sets are: i. CIDA’s own objectives for ETA. These are that ETA should be an effective aid to decision-makers, result in a thorough analysis of the effects of projects or programmes on the quality of the environment, incorporate mitigation measures in the design of projects or programmes, result in the promotion of research which leads to technologies that economize energy, and result in environmental or related development training. ii. The social legitimacy of EIA. In order to be socially legitimate, an ETA approach should involve the participation of the people affected by the proposed project or programme, and have an impact report that reflects the interests and the preferences of the affected communities. Since the environment is perceived differently by different people, ETA approaches should serve the best interest of the community that will be affected by the project, judged in terms of immediate benefits for the local community. iii. Technical legitimacy of ETA. In order to be technically legitimate, an ETA should result in decisions that explicitly account for the impacts identified in the ETA process. An EIA process should take into account the adequacy of administrative, organizational and decision-making processes, legal instruments, and human and financial resources which are lacking in most countries receiving aid. iv. Political legitimacy of ETA. EIA procedures should be clearly understood by the countries receiving aid, or else those countries will perceive them as a western bias towards economic development in the developing countries as an exchange for environmental protection. The EIAs of the two cases studied did not meet the fundamental criterion that, CIDA’s approach to EIA should be an effective aid to decision-makers. The EIA recommendations in the cases studied were not used to guide the decision-makers in deciding the locations of the two projects, and whether to go ahead with the projects or not. The cases studied did not involve “grassroots” public participation. These EIAs, however, were successful in identifying and analyzing the impacts of the studied projects on the quality of the environment. The two ETA reports recommended mitigations to guide project design. Since ETA is an evolving process, the whole exercise seemed to be mainly a learning experience for local experts and foreign consultants.
Mathematical Model of HIV superinfection dynamics and R5 to X4 switch
Creators: name: Sguanci, Luca
name: Bagnoli, Franco
name: Lio, Pietro
Publisher: name: arXiv
Year: 2006
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: During the HIV infection several quasispecies of the virus arise, which are able to use different coreceptors, in particular the CCR5 and CXCR4 coreceptors (R5 and X4 phenotypes, respectively). The switch in coreceptor usage has been correlated with a faster progression of the disease to the AIDS phase. As several pharmaceutical companies are starting large phase III trials for R5 and X4 drugs, models are needed to predict the co-evolutionary and competitive dynamics of virus strains. We present a model of HIV early infection which describes the dynamics of R5 quasispecies and a model of HIV late infection which describes the R5 to X4 switch. We report the following findings: after superinfection or coinfection, quasispecies dynamics has time scales of several months and becomes even slower at low number of CD4+ T cells. The curve of CD4+ T cells decreases, during AIDS late stage, and can be described taking into account the X4 related Tumor Necrosis Factor dynamics. Phylogenetic inference of chemokine receptors suggests that viral mutational pathway may generate R5 variants able to interact with chemokine receptors different from CXCR4. This may explain the massive signaling disruptions in the immune system observed during AIDS late stages and may have relevance for vaccination and therapy.
description: 21 pages, 14 figures