cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Role of thermal noise in tripartite quantum steering
Creators: name: Wang, Meng
name: Gong, Qihuang
name: Ficek, Zbigniew
name: He, Qiongyi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The influence of thermal noise on bipartite and tripartite quantum steering induced by a short laser pulse in a hybrid three-mode optomechanical system is investigated. The calculation is carried out under the bad cavity limit, the adiabatic approximation of a slowly varying amplitude of the cavity mode, and with the assumption of driving the cavity mode with a blue detuned strong laser pulse. Under such conditions, explicit expressions of the bipartite and tripartite steering parameters are obtained, and the concept of collective tripartite quantum steering, recently introduced by He and Reid [Phys. Rev. Lett. 111, 250403 (2013)], is clearly explored. It is found that both bipartite and tripartite steering parameters are sensitive functions of the initial state of the modes and distinctly different steering behaviour could be observed depending on whether the modes were initially in a thermal state or not. We find that the initial thermal noise is more effective in destroying the bipartite rather than the tripartite steering which, on the other hand, can persist even for a large thermal noise. For the initial vacuum state of a steered mode, the tripartite steering exists over the entire interaction time even if the steering modes are in very noisy thermal states. When the steered mode is initially in a thermal state, it can be collectively steered by the other modes. There are thresholds for the average number of the thermal photons above which the existing tripartite steering appears as the collective steering. Finally, we point out that the collective steering may provide a resource in a hybrid quantum network for quantum secret sharing protocol.
description: 13 pages, 9 figures
Revista Saída 04 #somostodosculpados
Creators: name: Canarim, Guilherme Orestes
Publisher: name: Zenodo
Year: 2022

description: Editorial Quanto mais degenera o capital em múltipias formas de exploração e Violência, mais vingam a inequidade baseada na vesguice fetichista que ilusão da pseudo cultura reflete no espelho da persona coletiva a qual à sociedade contemporânea tem se prendido, e que é o resto de identidade possível num mundo da miséria administrada. Os mais patentes indicadores desta desagregação de totalitarismos ilusionistas e ocos são os movimentos de pseudo identificação coletiva com um determinado personagem que tenha midiaticamente sido posto em lugar de vitimado ou tenha sido realmente “objeto de violência da sociedade a que deu substancia, os “somos todos”. Dai que não só a solidariedade é falsa pela impossibilidade da reconciliação com o fenômeno que resulta do modus operandi da ética do capital, 0 lucro, como ainda é totalmente absurda sendo ela mesma executora da causa máxima da violência.
Associations between delay discounting, substance use, and binge drinking in middle childhood through emerging adulthood
Creators: name: Sevigny-Resetco, Deborah
name: Mitchell, Suzanne H.
Publisher: name: Oregon Health and Science University
Year: 2023
Subjects: subject: Delay Discounting
subject: Substance-Related Disorders
subject: Binge Drinking
subject: Alcoholism
subject: Adolescent
subject: Child Development
subject: Intertemporal choice
subject: Emerging adulthood
subject: Middle childhood

description: Delay discounting, or the preference for smaller, immediate rewards over larger, delayed rewards, has been associated with numerous psychological disorders, including substance and alcohol abuse. The present study assessed delay discounting in 500 participants over a 13-year period ending in either adolescence or emerging adulthood, using the Monetary Choice Questionnaire (MCQ) and a behavioral task. This research sheds light on the link between delay discounting and alcohol abuse, particularly in the critical developmental period between middle childhood and emerging adulthood.
A Review on Plastic Voided Slab
Creators: name: Sasikala C
name: Seethalakshmi T
Publisher: name: Zenodo
Year: 2023

description: The most widely utilized building material is concrete. Concrete usage goes too far, which produces
CO2. The result will be global warming. In building construction, it's crucial to use less concrete.
Voided slabs are recommended for this. A void slab is a technique for virtually removing some
concrete from the tension zone. The structural dead weight is significantly decreased. By applying
plastic balls, cavities are created in this slab. Use of High Density Polyethylene (HDPE) spherical
balls to fill the voids in the middle of a slab eliminates 35% of a slab self-weight without affecting its
deflection behaviour & bending strength, compared to solid slab having same thickness. This helps
in reduce of self-weight, less emission of CO2 as less concrete will be used in slab and large spans in
slabs can also be adopted. Theliteraturepapersrelatedtoourtopicwerereviewed.
description: IJSRED - International Journal of Scientific Research and Engineering Development
Recent multi-kiloton impact events: are they truly random?
Creators: name: Marcos, C. de la Fuente
name: Marcos, R. de la Fuente
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: It is customarily assumed that Earth-striking meteoroids are completely random, and that all the impacts must be interpreted as uncorrelated events distributed according to Poisson statistics. If this is correct, their impact dates must be uniformly spread throughout the year and their impact coordinates must be evenly scattered on the surface of our planet. Here, we use a time- and yield-limited sample of Earth-impacting superbolides detected since 2000 to explore statistically this critical though frequently overlooked topic. We show that the cadence of these multi-kiloton impact events is incompatible with a random fall pattern at the 0.05 significance level or better. This result is statistically robust and consistent with the observed distribution of the longitudes of the ascending nodes of near-Earth objects (NEOs). This lack of randomness is induced by planetary perturbations, in particular Jupiter's, and suggests that some of the recent, most powerful Earth impacts may be associated with resonant groups of NEOs and/or very young meteoroid streams. An intriguing consequence of this scenario is that the impact hazard of Chelyabinsk-like objects should peak at certain times in the year.
description: 5+1 pages, 2 figures, 1 table. Thrice revised to reflect final version published in MNRAS: Letters
Thubana albinulla Wu 1994
Creators: name: Yu, Shuai
name: Wang, Shuxia
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Lecithoceridae
Thubana
Thubana albinulla

description: Thubana albinulla Wu, 1994: 130.
TL: China (Sichuan). TD: IZCAS.
Distribution. China (Sichuan).
description: Published as part of Yu, Shuai & Wang, Shuxia, 2025, New species and new records of the genus Thubana Walker (Lepidoptera: Lecithoceridae) from China, with a checklist of the genus in the country, pp. 81-97 in European Journal of Taxonomy 987 on page 94, DOI: 10.5852/ejt.2025.987.2861, http://zenodo.org/record/15196489
Parametric down conversion with a depleted pump as a model for classical information transmission capacity of quantum black holes
Creators: name: Alsing, Paul M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we extend the investigation of Adami and Ver Steeg [Class. Quantum Grav. \textbf{31}, 075015 (2014)] to treat the process of black hole particle emission effectively as the analogous quantum optical process of parametric down conversion (PDC) with a dynamical (depleted vs. non-depleted) `pump' source mode which models the evaporating black hole (BH) energy degree of freedom. We investigate both the short time (non-depleted pump) and long time (depleted pump) regimes of the quantum state and its impact on the Holevo channel capacity for communicating information from the far past to the far future in the presence of Hawking radiation. The new feature introduced in this work is the coupling of the emitted Hawking radiation modes through the common black hole `source pump' mode which phenomenologically represents a quantized energy degree of freedom of the gravitational field. This (zero-dimensional) model serves as a simplified arena to explore BH particle production/evaporation and back-action effects under an explicitly unitary evolution which enforces quantized energy/particle conservation. Within our analogous quantum optical model we examine the entanglement between two emitted particle/anti-particle and anti-particle/particle pairs coupled via the black hole (BH) evaporating `pump' source. We also analytically and dynamically verify the `Page information time' for our model which refers to the conventionally held belief that the information in the BH radiation becomes significant after the black hole has evaporated half its initial energy into the outgoing radiation. Lastly, we investigate the effect of BH particle production/evaporation on two modes in the exterior region of the BH event horizon that are initially maximally entangled, when one mode falls inward and interacts with the black hole, and the other remains forever outside and non-interacting.
description: 53 pages, 24 figures; accepted Class. and Quant. Grav (2Feb2015)
Self-accelerating Massive Gravity: Covariant Perturbation Theory
Creators: name: Motloch, Pavel
name: Hu, Wayne
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We undertake a complete and covariant treatment for the quadratic Lagrangian of all of the degrees of freedom of massive gravity with a fixed flat fiducial metric for arbitrary massive gravity parameters around any isotropic self-accelerating background solution. Generically, 3 out of 4 Stuckelberg degrees of freedom propagate in addition to the usual 2 tensor degrees of freedom of general relativity. The complete kinetic structure typically is only revealed at an order in the graviton mass that is equivalently to retaining curvature terms in a locally flat expansion. These results resolve several apparent discrepancies in the literature where zero degrees of freedom propagate in either special cases or approximate treatments as well as decoupling limit analyses which attempt to count longitudinal degrees of freedom.
description: 13 pages, no figures, in the new version we have extended the analysis to the full set of massive gravity parameters
Traces of singular values of Hauptmoduln
Creators: name: Beneish, Lea
name: Larson, Hannah
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: In an important paper, Zagier proved that certain half-integral weight modular forms are generating functions for traces of polynomials in the $j$-function. It turns out that Zagier's work makes it possible to algorithmically compute Hilbert class polynomials using a canonical family of modular forms of weight $\frac{3}{2}$. We generalize these results and consider Haupmoduln for levels $1, 2, 3, 5, 7,$ and $13$. We show that traces of singular values of polynomials in Haupmoduln are again described by coefficients of half-integral weight modular forms. This realization makes it possible to algorithmically compute class polynomials.
Anti-dark and Mexican-hat solitons in the Sasa-Satsuma equation on the continuous wave background
Creators: name: Xu, Tao
name: Li, Min
name: Li, Lu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In this letter, via the Darboux transformation method we construct new analytic soliton solutions for the Sasa-Satsuma equation which describes the femtosecond pulses propagation in a monomode fiber. We reveal that two different types of femtosecond solitons, i.e., the anti-dark (AD) and Mexican-hat (MH) solitons, can form on a continuous wave (CW) background, and numerically study their stability under small initial perturbations. Different from the common bright and dark solitons, the AD and MH solitons can exhibit both the resonant and elastic interactions, as well as various partially/completely inelastic interactions which are composed of such two fundamental interactions. In addition, we find that the energy exchange between some interacting soliton and the CW background may lead to one AD soliton changing into an MH one, or one MH soliton into an AD one.
description: 12 pages, 6 figures
Grad Network: Strengthening Bonds Between Alumni and Institution
Creators: name: Sowmiya M
name: Soundarya C
Publisher: name: Zenodo
Year: 2023

description: Maintaining the data history of the students is a typical functionality in any institution. It is
always an added advantage to have an automated, Organization-specific data management system.
Unlike other online solutions for alumni data management which either focuses on data management or
communication, this system focuses on both data management and communication. The proposed
system provides an optimized solution for collecting and managing the alumni data. The system targets
a wide range of audience since it is a web application. The system will be an all-in-one place to handle
alumni data, to enable communication between alumni and the institution and provides great flexible
features to keep track of the data. It will enable quick and easy communication through the built in
forum where the user can share or post information and privacy can be achieved through private chat
facility. The user can update their information by simply filling out forms and uploading their file.
Admin gets the privilege of viewing the weekly, batch wise, location based and role based reports. One
more advantage of the proposed system is that, generally alumni forum will be managed by group of
alumni which would be an overhead to them, this system is automated hence does not require
maintenance effort from the alumni side.
description: IJSRED - International Journal of Scientific Research and Engineering Development
BFKL equation for an integrated gluon density
Creators: name: de Oliveira, E. G.
name: Martin, A. D.
name: Ryskin, M. G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show how it is possible to rewrite the BFKL equation for the unintegrated gluon distribution, in terms of integrated gluons, similar to that used in DGLAP. We add to our equation the next-to-leading log terms which provide exact energy-momentum conservation and account for the kinematic constraint in real gluon emission. In this way the equation includes the major part of the higher-order corrections to BFKL evolution. We discuss the possibility to obtain a unified BFKL-DGLAP evolution equation relevant to processes at the LHC where both log(1/x) and logQ^2 are large simultaneously.
description: 11 pages, text clarified, version to be published in EPJC
Charge-dependent directed flow in asymmetric nuclear collisions
Creators: name: Voronyuk, V.
name: Toneev, V. D.
name: Voloshin, S. A.
name: Cassing, W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The directed flow of identified hadrons is studied within the parton-hadron-string-dynamics (PHSD) approach for the asymmetric system Cu+Au in non-central collisions at $\sqrt{s_{NN}}$ = 200 GeV. It is emphasized that due to the difference in the number of protons of the colliding nuclei an electric field emerges which is directed from the heavy to the light nucleus. This strong electric field is only present for about 0.25 fm/c at $\sqrt{s_{NN}}$ = 200 GeV and leads to a splitting of the directed flow $v_1$ for particles with the same mass but opposite electric charges in case of an early presence of charged quarks and antiquarks. The microscopic calculations of the directed flow for $π^\pm, K^\pm, p$ and $\bar{p}$ are carried out in the PHSD by taking into account the electromagnetic field induced by the spectators as well as its influence on the hadronic and partonic quasiparticle trajectories. It is shown that the splitting of the directed flow as a function of pseudorapidity $η$ and in particular as a function of the transverse momentum $p_t$ provides a direct access to the electromagnetic response of the very early (nonequilibrium) phase of relativistic heavy-ion collisions and allows to shed light on the presence (and number) of electric charges in this phase.
description: 8 pages, 12 figures
Data Management on the Front Lines: Managing Administrative Data at the Source
Creators: name: Badger, Kelsey
Publisher: name: Zenodo
Year: 2023
Subjects: data management
administrative data
government data
child welfare data

description: Over the past decade, it has become increasingly common that funders require researchers to submit a data management plan detailing how data produced during the project will be documented, secured, and shared. However, there is no equivalent requirement for managing government data that is “born-administrative”, even if it is commonly used downstream for research purposes. This has resulted in an uneven patchwork of government data management practices that greatly impact the accessibility and usability of administrative data for both its original purposes and in any subsequent re-use. This talk will explore this challenge through the example of child welfare electronic case records in the United States. This data is a particularly complex case study due to both its sensitivity and the distributed nature of the child welfare service system, which relies heavily on privatized contractors. This creates a correspondingly long tail of data management needs that are often not addressed by top-down data governance policies. How can data management practices be incorporated earlier in child welfare data collection without further burdening overworked frontline staff? Are there lessons to be learned from the last decade of teaching researchers how to better manage their data? And whose responsibility is all this anyway? Video recording is available on YouTube.
ALMA Observations of the IRDC Clump G34.43+00.24 MM3: 278 GHz Class I Methanol Masers
Creators: name: Yanagida, Takahiro
name: Sakai, Takeshi
name: Hirota, Tomoya
name: Sakai, Nami
name: Foster, Jonathan B.
name: Sanhueza, Patricio
name: Jackson, James M.
name: Furuya, Kenji
name: Aikawa, Yuri
name: Yamamoto, Satoshi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have observed a molecular clump (MM3) associated with the infrared dark cloud G34.43+00.24 in the CH3OH J_K=9_{-1}--8_0 E, 5_0-4_0 E, and 5_{-1}-4_{-1} E lines at sub-arcsecond resolution by using the Atacama Large Millimeter/submillimeter Array. By comparing the CH3OH J_K=9_{-1}-8_0 E emission with the CH3OH 5_0-4_0 E and 5_{-1}-4_{-1} E emission, we have found that the CH3OH J_K=9_{-1}-8_0 E emission is masing. We have clearly shown that the CH3OH J_K=9_{-1}-8_0 masers arise from the post shocked gas in the interacting regions between the outflows and ambient dense gas. Toward the strongest peak of the CH3OH maser emission, SiO J=6-5 emission is very weak. This indicates that the CH3OH maser emission traces relatively old shocks or weak shocks.
description: 15 pages, 4 figures, accepted to ApJL
The Essential Norm of Operators on the Bergman Space of Vector--Valued Functions on the Unit Ball
Creators: name: Rahm, Robert S.
name: Wick, Brett D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: Let $A_α^{p}(\mathbb{B}^n;\mathbb{C}^d)$ be the weighted Bergman space on the unit ball $\mathbb{B}^n$ of $\mathbb{C}^n$ of functions taking values in $\mathbb{C}^d$. For $1
description: v2: 33 pages. In order to be self-contained, this paper draws heavily from arXiv:1204.5548
The lowest limits on the doubly charged Higgs boson masses in the minimal left-right symmetric model
Creators: name: Bambhaniya, G.
name: Chakrabortty, J.
name: Gluza, J.
name: Jelinski, T.
name: Kordiaczynska, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The doubly charged Higgs bosons $H_{1,2}^{\pm\pm}$ would undoubtedly be clear messengers of the new physics. We discuss their mass spectrum and show how experimental data and relations between scalar masses put limits on it. In particular, both the masses of the particles $H_1^0$, $A_1^0$ that play a crucial role in FCNC effects and the masses of the additional gauge bosons $W_2$, $Z_2$ are notably important. For instance, if $M_{H_1^0,A_1^0}\simeq 15$ TeV and $M_{W_2}\simeq 3.76$ TeV then the lowest mass of $H_1^{\pm\pm}$ is 465 GeV. In contrast, due to the freedom in the parameter space of the full scalar potential, there is no lowest limit on the mass of $H_2^{\pm\pm}$. It is shown to which signals at hadron colliders such relatively light doubly charged scalars might correspond. LHC working at $\sqrt{s}=14$ TeV will enter into the region where existence of such particles with minimal masses can be thoroughly explored for a much wider parameter space of the minimal and manifest version of the left-right symmetric model (MLRSM). Taking into account our considerations and present ATLAS and CMS exclusion limits on $M_{H^{\pm\pm}}$, there exist already first partial bounds on some of the MLRSM scalar potential parameters.
description: 5 pages, 3 figures. v3: minor changes, references added, version published in PRD
Gravitational perturbations of the Kerr geometry: High-accuracy study
Creators: name: Cook, Gregory B.
name: Zalutskiy, Maxim
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present results from a new code for computing gravitational perturbations of the Kerr geometry. This new code carefully maintains high precision to allow us to obtain high-accuracy solutions for the gravitational quasinormal modes of the Kerr space-time. Part of this new code is an implementation of a spectral method for solving the angular Teukolsky equation that, to our knowledge, has not been used before for determining quasinormal modes. We focus our attention on two main areas. First, we explore the behavior of these quasinormal modes in the extreme limit of Kerr, where the frequency of certain modes approaches accumulation points on the real axis. We compare our results with recent analytic predictions of the behavior of these modes near the accumulation points and find good agreement. Second, we explore the behavior of solutions of modes that approach the special frequency $Mω=-2i$ in the Schwarzschild limit. Our high-accuracy methods allow us to more closely approach the Schwarzschild limit than was possible with previous numerical studies. Unlike previous work, we find excellent agreement with analytic predictions of the behavior near this special frequency. We include a detailed description of our methods, and make use of the theory of confluent Heun differential equations throughout. In particular, we make use of confluent Heun polynomials to help shed some light on the controversy of the existence, or not, of quasinormal and total-transmission modes at certain special frequencies in the Schwarzschild limit.
description: 30 pages, 24 figures; Corrected typos, including misspelling in author's name
Consistency Relations for Large Field Inflation
Creators: name: Chiba, Takeshi
name: Kohri, Kazunori
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Consistency relations for chaotic inflation with a monomial potential and natural inflation and hilltop inflation are given which involve the scalar spectral index $n_s$, the tensor-to-scalar ratio $r$ and the running of the spectral index $α$. The measurement of $α$ with $O(10^{-3})$ and the improvement in the measurement of $n_s$ could discriminate monomial model from natural/hilltop inflation models. A consistency region for general large field models is also presented.
description: 10 pages, 3 figures, typos corrected, a version to appear in PTEP
A critique of recent semi-classical spin-half quantum plasma theories
Creators: name: Krishnaswami, Govind S.
name: Nityananda, Rajaram
name: Sen, Abhijit
name: Thyagaraja, Anantanarayanan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Certain recent semi-classical theories of spin-half quantum plasmas are examined with regard to their internal consistency, physical applicability and relevance to fusion, astrophysical and condensed matter plasmas. It is shown that the derivations and some of the results obtained in these theories are internally inconsistent and contradict well-established principles of quantum and statistical mechanics, especially in their treatment of fermions and spin. Claims of large semi-classical effects of spin magnetic moments that could dominate the plasma dynamics are found to be invalid both for single-particles and collectively. Larmor moments dominate at high temperature while spin moments cancel due to Pauli blocking at low temperatures. Explicit numerical estimates from a variety of plasmas are provided to demonstrate that spin effects are indeed much smaller than many neglected classical effects. The analysis presented suggests that the aforementioned `Spin Quantum Hydrodynamic' theories are not relevant to conventional laboratory or astrophysical plasmas.
description: 11 pages, To appear in Contributions to Plasma Physics. Minor correction on page 3 to electron spin magnetic moment
title: Μικροβιακές αλλοιώσεις σε κρεατοσκευάσματα συσκευασμένα υπό κενό και οξείδωση λίπους
title: Microbial spoilage in meat products packed under vacuum and fat oxidation
titleType: AlternativeTitle
Creators: name: Φασιά, Μαρία
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Μπέικον
Ψυχρότροφα
TBA
Οξείδωση

description: Η συγκεκριμένη μελέτη αφορά τη διερεύνηση των μικροβιακών μεταβολών της αερόβιας ψυχρότροφης χλωρίδας καθώς και της οξυγαλακτικής σε δυο κρεατοσκευάσματα, τεμαχισμένα σε φέτες και συσκευασμένα υπό κενό συντηρούμενα σε τρεις διαφορετικές θερμοκρασίες (5, 10, 15oC). Τα προϊόντα αυτά είναι το μπέικον και το «καπρικό», ένα παραδοσιακό προϊόν της Κρήτης. Όλα τα δείγματα ήταν βιοτεχνικής προελεύσεως. Παράλληλα κατά τη διάρκεια την συντήρησης των δειγμάτων αναλύονταν και η εξέλιξη της οξείδωσης των λιπαρής τους φάσης. Τα αποτελέσματα έδειξαν ότι και στα δύο προϊόντα, τα οποία έχουν δεχθεί θερμική επεξεργασία, το αρχικό μικροβιακό φορτίο σε όλα τα δείγματα ήταν πάντοτε μεγαλύτερα από 104 cfu/ g. Σε όλες τις θερμοκρασίες συντήρησης η αύξηση τόσο της αερόβιας ψυχρότροφής χλωρίδας ήταν ταχεία γεγονός που θα μπορούσε να αποδοθεί στο υψηλό αρχικό μικροβιακό φορτίο. Ενδεικτικά στα δείγματα που συντηρούνταν στους 5οC η φάση της λογαριθμικής ανάπτυξης της αερόβιας ψυχρόφιλης χλωρίδας ολοκληρώθηκε μέσα σε μία περίπου εβδομάδα ενώ για την αντίστοιχη ψυχρόφιλη οξυγαλακτική χρειάστηκαν 40 ημέρες. Σε κανένα από τα δείγματα δεν παρουσιάστηκε παραγωγή αερίου ή δυσοσμία. Ως αλλοίωση θεωρήθηκε η ανάπτυξη γλοίας στην επιφάνεια των δειγμάτων. Σε ό,τι αφορά τον βαθμό οξείδωσης των δειγμάτων, διαπιστώθηκε ότι σε απόλυτες τιμές ο βαθμός οξείδωσης των δειγμάτων «καπρικού» ήταν πολύ μεγαλύτερος από αυτό των δειγμάτων μπέικον. Επίσης κατά τη διάρκεια της συντήρησης των δειγμάτων διαπιστώθηκε σταδιακή αύξηση του βαθμού οξείδωσης.
Phenomenology of $n$-${\bar n}$ Oscillations Revisited
Creators: name: Gardner, S.
name: Jafari, E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We revisit the phenomenology of $n$-${\bar n}$ oscillations in the presence of external magnetic fields, highlighting the role of spin. We show, contrary to long-held belief, that the $n$-${\bar n}$ transition rate need not be suppressed, opening new opportunities for its empirical study.
description: 15 pages, REVTeX; revised and rewritten to focus on SM spin-dependent effects, conclusions persist
High order algorithms for the fractional substantial diffusion equation with truncated Lévy flights
Creators: name: Chen, Minghua
name: Deng, Weihua
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 26A33, 65M06, 65M12, 65M55, 65T50

description: The equation with the time fractional substantial derivative and space fractional derivative describes the distribution of the functionals of the Lévy flights; and the equation is derived as the macroscopic limit of the continuous time random walk in unbounded domain and the Lévy flights have divergent second order moments. However, in more practical problems, the physical domain is bounded and the involved observables have finite moments. Then the modified equation can be derived by tempering the probability of large jump length of the Lévy flights and the corresponding tempered space fractional derivative is introduced. This paper focuses on providing the high order algorithms for the modified equation, i.e., the equation with the time fractional substantial derivative and space tempered fractional derivative. More concretely, the contributions of this paper are as follows: 1. the detailed numerical stability analysis and error estimates of the schemes with first order accuracy in time and second order in space are given in {\textsl{complex}} space, which is necessary since the inverse Fourier transform needs to be made for getting the distribution of the functionals after solving the equation; 2. we further propose the schemes with high order accuracy in both time and space, and the techniques of treating the issue of keeping the high order accuracy of the schemes for {\textsl{nonhomogeneous}} boundary/initial conditions are introduced; 3. the multigrid methods are effectively used to solve the obtained algebraic equations which still have the Toeplitz structure; 4. we perform extensive numerical experiments, including verifying the high convergence orders, simulating the physical system which needs to numerically make the inverse Fourier transform to the numerical solutions of the equation.
description: 28 pages, 4 figures
GALILEO: CREATION AND COSMOGONY. A STUDY ON THE INTERPLAY BETWEEN GALILEO'S SCIENCE OF MOTION AND THE CREATION THEME.
Creators: name: MALARA, IVAN GIUSEPPE
Publisher: name: Universit� degli Studi di Milano
Year: 2021

description: The relationship between science and theology in Galileo?s work is usually studied with reference to the Copernican letters and the so-called ?Galileo affair,? ended with Galileo?s abjuration in 1633. This dissertation tackles the same subject, but from a different angle. Galileo?s approach to the creation theme does indeed allow us to inquiry into the relationship between science and theology while keeping Biblical exegesis and Galileo?s trial on the background. The dissertation is divided into two parts: (1) ?Creation,? and (2) ?Cosmogony.? In the first part, a series of primary sources are considered (Benedetto Castelli?s letter to Galileo of April the 1st, 1607; a few unpublished folios from the reportationes of Muzio Vitelleschi?s course on natural philosophy held at the Roman College in 1589-90; some passages of Galileo?s Juvenilia) which help us gauge, albeit indirectly, Galileo?s attitude toward the possibility of demonstrating creatio de novo (the beginning of the world) and creatio ex nihilo (the existential dependence of creatures on God). Although some initial supporters of Galileo sought to demonstrate creatio de novo through his definition of motion, he never welcomed their attempt. He probably agreed with Castelli that the demonstration of creatio de novo was beyond the reach of his science and, in general, of human knowledge (a position that, for the sake of convenience, I have referred to as ?agnosticism?). As regards creation out of nothing, at Galileo?s time this notion was usually treated in light of a metaphysical understanding of the relationship between God and creatures ? a relationship which entailed an understanding of God as primum ens (first being). This notion is also used in the Juvenilia, namely, a series of pages reporting standard arguments of Scholastic philosophy, which Galileo copied from other sources. I have interpreted the total absence of the idea of God as primum ens in the original writings of Galileo as a sign that Galileo was not interested in the problem of creatio ex nihilo, nor did he consider its metaphysical solution. In the second part, I have argued that Galileo was interested in the cosmogony problem, namely, he tried to understand how God imposed order on the primeval chaotic universe. Cosmogony was refuted in the Aristotelian tradition on the basis that motion and gravity cannot be conceived of out-side the orderly framework of the universe. In this view, mechanics leans on cosmology, and vice versa. Galileo separates the two, but through cosmogony he tries to reconcile his cosmological views (initially geocentric, then heliocentric) with his understandings of motion and gravity. Thanks to Copernicus, he is able to ?mathematize? the cosmogony problem. Thus, the solution to this problem becomes an important scientific task, one that allows Galileo to advocate the relevance of his science on a universal scale.
title: Αναγνώριση και παρακολούθηση αντικειμένων σε βίντεο μικροσκοπίας
title: Object recognition and tracking in microscopy videos
titleType: AlternativeTitle
Creators: name: Κωστάλας, Ευάγγελος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: Tracking
subject: Bioimaging
subject: Image analysis
subject: Video

description: Η αυτόματη αναγνώριση και παρακολούθηση αντικειμένων σε ακολουθίες εικόνων είναι μια εφαρμογή της ανάλυσης εικονας που έχει δει πολύ μεγάλη άνθηση και αποτελεί εδώ και χρόνια σημαντικό αντικείμενο έρευνας. Ενδεικτικό είναι πως η αναζήτηση των όρων image tracking στο pubmed επιστρέφει 11,404 δημοσιεύσεις για τα έτη 1959-2010 και 36,693 δημοσιεύσεις από το 2011 μέχρι σήμερα. Υπάρχει όπως θα δούμε παρακάτω εξαιρετικά μεγάλος αριθμός μεθόδων και αλγορίθμων για την διαδικασία αυτή, γεγονός που γίνεται εύκολα κατανοητό αν λάβουμε υπόψη οτι η αναγνώριση και ο εντοπισμός αντικειμένων από δεδομένα εικόνας έχουν βρεί εφαρμογή σε πάρα πολλούς διαφορετικούς κλάδους, όπως η αστρονομία, η βιολογία, η ιατρική, η ρομποτική, κα. Οι κλάδοι αυτοί όμως εργάζονται με τελείως διαφορετικά είδη εικόνας και συμπεριφοράς των αντικειμένων, πράγμα που συνεπάγεται την ανάγκη για διαφορετικές μεθοδολογίες ανάλυσης. Ο μεγάλος αριθμός μεθοδολογιών που προκύπτει, σε συνδυασμό με το γεγονός πως οι άνθρωποι στους οποίους χρειάζεται να τις εφαρμόσουν, σπάνια είναι ειδικοί στην ανάλυση εικόνας και τον προγραμματισμό, αλλά σε τελείως διαφορετικούς κλάδους, κάνει την εφαρ- μογή τέτοιων μεθόδων δυσπρόσιτη και περιορίζει την δυνατότητα εφαρμογής τους. Συγκεκριμένα στην βιολογία, που είναι και το αντικείμενο της παρούσας εργασίας, η πρόοδος των τεχνικών μέσων απόκτησης και αποθήκευσης εικόνων αλλά και η μετασ- τροφή του ερευνητικού ενδιαφέροντος, από την καθαρή γενετική στην μελέτη ολόκληρου του περιβάλλοντος στο εσωτερικό των έμβιων οργανισμών έχει φέρει την ανάγκη για καλύτερες και πιο προσιτές τεχνικές αυτόματης ανάλυσης εικόνας στο προσκήνιο του ερευνητικού εν- διαφέροντος. Σκοπός αυτής της εργασίας είναι να γίνει μια συνοπτική παρουσίαση κάποιων από τις βασικότερες μεθοδολογίες ανάλυσης εικόνας, εντοπισμού και παρακολουθησης αντικειμένων σε ακολουθίες εικόνων, με έμφαση στις τεχνικές που βρίσκουν εφαρμογή στην Βιολογία. Στη συνέχεια παρουσιάζουμε ένα πρόγραμμα, το οποίο έχει σκοπό την απλοποίηση και την αυτοματοποίηση εφαρμογής αυτών των μεθόδων σε μία προσπάθεια να γίνουν προσιτές σε ανθρώπους χωρίς ιδιαίτερες γνώσεις στον προγραμματισμό ή την ανάλυση εικόνας.
Electrical-modelling, design and simulation of cumulative radiation effects in semiconductor pixels detectors: prospects and limits
Creators: name: Fourches, Nicolas T.
name: Chipaux, Remi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Silicon detectors have gained in popularity since silicon became a widely used micro/nanoelectronic semiconductor material. Silicon detectors are used in particle physics as well as imaging for pixel based detecting systems. Over the past twenty years a lot of experimental efforts have been focused on the effects of ionizing and non-ionizing radiation on silicon pixels. Some of this research was done in the framework of high luminosity particle physics experiments, along with radiation hardness studies of basic semiconductors devices. In its simplest form the semiconductor pixel detectors reduce to a PIN or PN structure partially or totally depleted, or in some MOS and APD (Avalanche PhotoDiode) structures. Bulk or surface defects affect considerably transport of free carriers. We propose guidelines for pixel design, which will be tested through a few pixel structures. This design method includes into the design the properties of defects. The electrical properties reduce to parameters, which can be introduced in a standard simulation code to make predictive simulations. We include an analytical model for defect annealing derived from isochronal annealing experiments. The proposed method can be used to study pixels detectors with different geometrical structures and made with different semiconducting materials. Its purpose is to provide an alternative to tedious and extensive radiation tests on final fabricated detectors. This is necessary for the long-term reliability of detectors together with their radiation tolerance. A general method for pixel design is introduced and we will show how it can be used for the design of alternate to silicon (germanium) pixels.
description: Conference Poster, list of authors updated
ELKO and Dirac Spinors seen from Torsion
Creators: name: Fabbri, Luca
name: Vignolo, Stefano
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, the recently-introduced ELKO and the well-known Dirac spinor fields will be compared; however, instead of comparing them under the point of view of their algebraic properties or their dynamical features, we will proceed by investigating the analogies and similarities in terms of their geometrical character viewed from the perspective of torsion. The paper will be concluded by sketching some consequences for the application to cosmology and particle physics.
description: 11 pages
CHARACTERIZATION AND SPATIAL LOCALIZATION OF REGULATORY SUBSETS IN HUMAN TUMORS
Creators: name: MARTINOVIC, MARTINA
Publisher: name: Universit� degli Studi di Milano
Year: 2020

description: It is becoming increasingly clear that tumor immune microenvironment (TIME) plays a crucial role in cancer progression. In this contest T lymphocytes gained remarkable attention since they are often found to infiltrate tumors where they exert their functions to eradicate nascent tumor, but also in certain circumstances to promote its progression with the establishment of an immunosuppressive environment. CD8+ T cells were considered the predominant immune cellular component to infiltrate tumors, able to repress their proliferation through the release of cytotoxic molecules. Therefore several studies have been undertaken with the final goal to boost their activity against tumor cells. On the contrary, the role of CD4+ T cells has been largely underestimated in cancer immunity. They are known to provide helper signals to other immune subsets that lead to anti-tumoral responses, but also other subsets as regulatory T cells, have been described to promote the tumor growth by impairing effector cells activities. The immune cells that are found in tumor bed are continuously exposed to a plethora of signals, given by cancer cells, surrounding tissues or even by components of the immune system itself. All those different signals can affect cells identity, especially from the immune compartment. Cell plasticity is a peculiar feature of CD4+ T cells, which are known to shape and to adapt their phenotype in response to the different stimuli they are exposed to. This, together with their ability to interact with other cells from the immune system, can drastically affect tumor progression. Therefore the characterization of intratumoral CD4+ T cells could be fundamental in understanding the mechanisms leading to immunosurveillance failure. With this aim we performed single cell-RNAseq on CD4+ T cells isolated from Colorectal Cancer (CRC) and Non small cell lung cancer (NSCLC) and their respective adjacent healthy tissues. Our analysis revealed the enrichment of two subsets of CD4+ T cells in tumoral samples, T regulatory cells (Treg) and Type-1 regulatory T cells (Tr1). Since little is known about Tr1 cells? role in cancer immunology, we focused on their characterization. We checked for 4 the production of IL-10, GMZK and for the expression of EOMES, the lineage transcription factor that has been recently identified in mouse and human peripheral Tr1 cells. Moreover, we sought to establish a correlation between Tr1 infiltration and patients? outcome. We identified CHI3L2 as a specific Tr1 transcript and found that its expression correlates with a worse prognosis. All together, our data suggest that the CD4+ T regulatory cells are enriched in tumors and that Tr1 cells could largely contribute to the establishment of an immunosuppressive microenvironment that inhibits anti-tumor responses, making them suitable targets for novel immunotherapies.
THE PROGNOSIS OF PEDIATRIC INTENSIVE CARE UNIT PATIENTS CAN BE AFFECTED BY GAMMA GLUTAMYL TRANSFERASE AND URIC ACID LEVELS: A SYSTEMATIC REVIEW WITH META-ANALYSIS
Creators: name: Dr. MUHAMMAD DANIYAL BALOCH
name: ABULAITI ABDUHAER
name: NADIRE HAIRULA
Publisher: name: Zenodo
Year: 2024
Subjects: Gamma-Glutamyl Transferase (GGT), Uric Acid (UA), Mortality, Patients in the PICU.

description: Abstract

Background: Elevated Gamma Glutamyl transferase (GGT) and uric acid levels have been associated with worse outcomes in critically ill patients, but their predictive value in Pediatric Intensive Care Unit (PICU) patients is unclear. We conducted a systematic review and meta-analysis to evaluate the association between GGT/uric acid and mortality in PICU patients. Methods: PubMed, Embase and Cochrane Library were searched for observational studies examining the association between GGT/uric acid levels and mortality in PICU patients. Pooled risk ratios (R.R.) with 95% confidence intervals (CI) were calculated using random-effects models. Results: 8 studies with 2,134 patients were included. Elevated GGT was associated with significantly higher mortality risk (RR 1.86, 95% CI 1.34-2.58). The association remained significant when restricted to multivariate analyses (RR 1.95, 95% CI 1.17-3.26). Elevated uric acid levels were also associated with higher mortality (RR 1.97, 95% CI 1.33-2.90). Significant heterogeneity was present. Conclusions: Elevated Gamma Glutamyl transferase (GGT) and uric acid levels are associated with higher mortality risk in Pediatric Intensive Care Unit (PICU) patients. These biomarkers may assist in risk stratification, although additional studies are needed to confirm these findings.
Macroscopic Quantum Entanglement of a Kondo Cloud at Finite Temperature
Creators: name: Lee, S. -S. B.
name: Park, Jinhong
name: Sim, H. -S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a variational approach for computing the macroscopic entanglement in a many-body mixed state, based on entanglement witness operators, and compute the entanglement of formation (EoF), a mixed-state generalization of the entanglement entropy, in single- and two-channel Kondo systems at finite temperature. The thermal suppression of the EoF obeys power-law scaling at low temperature. The scaling exponent is halved from the single- to the two-channel system, which is attributed, using a bosonization method, to the non-Fermi liquid behavior of a Majorana fermion, a "half" of a complex fermion, emerging in the two-channel system. Moreover, the EoF characterizes the size and power-law tail of the Kondo screening cloud of the single-channel system.
description: Supplementary Material included
title: Ενεργειακή αναβάθμιση σε υφιστάμενο κτίριο (διαμέρισμα) με άδεια προ του 1979, με επεμβάσεις στο κέλυφος, με πιστοποιημένα υψηλών προδιαγραφών θερμομονωτικά και υγρομονωτικά υλικά
title: Energy upgrade in an existing building (apartment) with a permit before 1979, with interventions in the shell, with certified high-standard heat – insulating and moisture insulating materials
titleType: AlternativeTitle
Creators: name: Τσαγκλής, Νικόλαος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Ενεργειακή επιθεώρηση
Κανονισμός Ενεργειακής Απόδοσης Κτιρίων
Ενεργειακή αναβάθμιση
Ενεργειακή απόδοση
ΖΝΧ
ΚΕΝΑΚ
Πιστοποιητικό ενεργειακής απόδοσης

description: Οι ενεργειακές ανάγκες των παλιών κτιρίων προβληματίζουν έντονα την επιστημονική κοινότητα για χρόνια. Για την αντιμετώπιση του ζητήματος αυτού συντάχθηκαν τεχνικές οδηγίες για την (ενεργειακή) αξιολόγηση και αναβάθμιση των κτιρίων. Σύμφωνα με αυτές η παρούσα διπλωματική εργασία πραγματεύεται την ενεργειακή αναβάθμιση παλαιάς κατοικίας στην Ελλάδα με άδεια δόμησης πριν το 1979 και εξετάζει την δυνατότητα βελτίωσης της ενεργειακής κατάταξης με την επένδυση του κελύφους με θερμομονωτικά υλικά υψηλής ποιότητας και αντικατάσταση συστημάτων θέρμανσης /ψύξης /ΖΝΧ (ζεστού νερού χρήσης).
Dynamical sectors for a spinning particle in AdS_3
Creators: name: Batlle, Carles
name: Gomis, Joaquim
name: Kamimura, Kiyoshi
name: Zanelli, Jorge
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the dynamics of the motion of a particle of mass M and spin J in AdS_3. The study reveals the presence of different dynamical sectors depending on the relative values of M, J and the AdS_3 radius R. For the subcritical M^2 R^2-J^2 >0 and supercritical M^2 R^2-J^2<0 cases, it is seen that the equations of motion give the geodesics of AdS_3. For the critical case M^2R^2=J^2 there exist extra gauge transformations which further reduce the physical degrees of freedom, and the motion corresponds to the geodesics of AdS_2. This result should be useful in the holographic interpretation of the entanglement entropy for 2d conformal field theories with gravitational anomalies.
description: 12 pages, 1 figure, Some comments, references and formulas are added