cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Entropy and Temperature in finite isolated quantum systems
Creators: name: Burke, Phillip C.
name: Haque, Masudul
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate how the temperature calculated from the microcanonical entropy compares with the canonical temperature for finite isolated quantum systems. We concentrate on systems with sizes that make them accessible to numerical exact diagonalization. We thus characterize the deviations from ensemble equivalence at finite sizes. We describe multiple ways to compute the microcanonical entropy and present numerical results for the entropy and temperature computed in these various ways. We show that using an energy window whose width has a particular energy dependence results in a temperature with minimal deviations from the canonical temperature.
description: v2: Updated with changes made for publication in Phys. Rev. E. 10 pages, 7 figures. v1: 9 Pages, 6 Figures
The variable X-ray emission of PSR B0943+10
Creators: name: Mereghetti, Sandro
name: Tiengo, Andrea
name: Esposito, Paolo
name: Turolla, Roberto
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The old pulsar PSR B0943+10 (P=1.1 s, characteristic age tau=5 Myr) is the best example of mode-switching radio pulsar. Its radio emission alternates between a highly organized state with regular drifting subpulses (B mode) and a chaotic emission pattern (Q mode). We present the results of XMM-Newton observations showing that the X-ray properties of PSR B0943+10 depend on its radio state (Hermsen et al. 2013). During the radio fainter state (Q mode) the X-ray flux is more than a factor two larger than during the B-mode and X-ray pulsations with about 50% pulsed fraction are detected. The X-ray emission of PSR B0943+10 in the B-mode is well described by thermal emission with blackbody temperature kT=0.26 keV coming from a small hot spot with luminosity of 7x10^28 erg/s, in good agreement with the prediction of the partially screened gap model, which also explains the properties of the radio emission in this mode. We derived an upper limit of 46% on the X-ray pulsed fraction in the B-mode, consistent with the geometry and viewing angle of PSR B0943+10 inferred from the radio data. The higher flux observed during the Q-mode is consistent with the appearance of an additional component with a power-law spectrum with photon index 2.2. We interpret it as pulsed non-thermal X-rays produced in the star magnetosphere. A small change in the beaming pattern or in the efficiency of acceleration of the particles responsible for the non-thermal emission can explain the reduced flux of this component during the radio B-mode.
description: Accepted for publication in MNRAS
HST/COS Detection of Deuterated Molecular Hydrogen in a DLA at z = 0.18
Creators: name: Oliveira, Cristina M.
name: Sembach, Kenneth R.
name: Tumlinson, Jason
name: O'Meara, John
name: Thom, Christopher
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report on the detection of deuterated molecular hydrogen, HD, at $z = 0.18$. HD and H$_{\rm 2}$ are detected in HST/COS data of a low metallicity ($Z \sim 0.07Z_\odot$) damped Ly$α$ system at $z = 0.18562$ toward QSO B0120$-$28, with log $N$(H I) = 20.50 $\pm$ 0.10. Four absorption components are clearly resolved in H$_{\rm 2}$ while two components are resolved in HD; the bulk of the molecular hydrogen is associated with the components traced by HD. We find total column densities log $N$(HD) = 14.82 $\pm$ 0.15 and log $N$(H$_{\rm 2}$) = 20.00 $\pm$ 0.10. This system has a high molecular fraction, $f$(H$_{\rm 2}$) = 0.39 $\pm$ 0.10 and a low HD to H$_{\rm 2}$ ratio, log (HD/2H$_{\rm 2}$) $= -5.5 \pm 0.2$ dex. The excitation temperature, $T_{01} = 65 \pm 2$ K, in the component containing the bulk of the molecular gas is lower than in other DLAs. These properties are unlike those in other higher redshift DLA systems known to contain HD, but are consistent with what is observed in dense clouds in the Milky Way.
description: 18 pages, 6 figures. To be published in the Astrophysical Journal
On Sums, Derivatives, and Flips of Riordan Arrays
Creators: name: Bang, Caroline
name: von Bell, Matias
name: Culver, Eric
name: Dickson, Jessica
name: Dimitrov, Stoyan
name: Perrier, Rachel
name: Sundaram, Sheila
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: We study three operations on Riordan arrays. First, we investigate when the sum of Riordan arrays yields another Riordan array. We characterize the $A$- and $Z$-sequences of these sums of Riordan arrays, and also identify an analog for $A$-sequences when the sum of Riordan arrays does not yield a Riordan array. In addition, we define the new operations `Der' and `Flip' on Riordan arrays. We fully characterize the Riordan arrays resulting from these operations applied to the Appell and Lagrange subgroups of the Riordan group. Finally, we study the application of these operations to various known Riordan arrays, generating many combinatorial identities in the process.
description: 35 pages
Folding model study of the charge-exchange scattering to the isobaric analog state and implication for the nuclear symmetry energy
Creators: name: Khoa, Dao T.
name: Loc, Bui Minh
name: Thang, Dang Ngoc
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Fermi transition (ΔL=ΔS=0 and ΔT=1) between the nuclear isobaric analog states (IAS), induced by the charge-exchange (p,n) or (3He,t) reaction, can be considered as "elastic" scattering of proton or 3He by the isovector term of the optical potential (OP) that flips the projectile isospin. The accurately measured (p,n) or (3He,t) scattering cross-section to the IAS can be used, therefore, to probe the isospin dependence of the proton or 3He optical potential. Within the folding model, the isovector part of the OP is determined exclusively by the neutron-proton difference in the nuclear densities and the isospin dependence of the effective nucleon-nucleon (NN) interaction. Because the isovector coupling explicitly links the isovector part of the proton or 3He optical potential to the cross section of the charge-exchange (p,n) or (3He,t) scattering to the IAS, the isospin dependence of the effective (in-medium) NN interaction can be well tested in the folding model analysis of these charge-exchange reactions. On the other hand, the same isospin- and density dependent NN interaction can also be used in a Hartree-Fock calculation of asymmetric nuclear matter, to estimate the nuclear matter energy and its asymmetry part (the nuclear symmetry energy). As a result, the fine-tuning of the isospin dependence of the effective NN interaction against the measured (p,n) or (3He,t) cross sections should allow us to make some realistic prediction of the nuclear symmetry energy and its density dependence.
description: Accepted for publication in European Physical Journal A - "Hadrons and Nuclei"
Hilbert Statistics of Vorticity Scaling in Two-Dimensional Turbulence
Creators: name: Tan, H. S.
name: Huang, Y. X.
name: Meng, Jianping
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this paper, the scaling property of the inverse energy cascade and forward enstrophy cascade of the vorticity filed $ω(x,y)$ in two-dimensional (2D) turbulence is analyzed. This is accomplished by applying a Hilbert-based technique, namely Hilbert-Huang Transform, to a vorticity field obtained from a $8192^2$ grid-points direct numerical simulation of the 2D turbulence with a forcing scale $k_f=100$ and an Ekman friction. The measured joint probability density function $p(C,k)$ of mode $C_i(x)$ of the vorticity $ω$ and instantaneous wavenumber $k(x)$ is separated by the forcing scale $k_f$ into two parts, which corresponding to the inverse energy cascade and the forward enstrophy cascade. It is found that all conditional pdf $p(C\vert k)$ at given wavenumber $k$ has an exponential tail. In the inverse energy cascade, the shape of $p(C\vert k)$ does collapse with each other, indicating a nonintermittent cascade. The measured scaling exponent $ζ_ω^I(q)$ is linear with the statistical order $q$, i.e., $ζ_ω^I(q)=-q/3$, confirming the nonintermittent cascade process. In the forward enstrophy cascade, the core part of $p(C\vert k)$ is changing with wavenumber $k$, indicating an intermittent forward cascade. The measured scaling exponent $ζ_ω^F(q)$ is nonlinear with $q$ and can be described very well by a log-Poisson fitting: $ζ_ω^F(q)=\frac{1}{3}q+0.45\left(1-0.43^{q}\right)$. However, the extracted vorticity scaling exponents $ζ_ω(q)$ for both inverse energy cascade and forward enstrophy cascade are not consistent with Kraichnan\rq{}s theory prediction. New theory for the vorticity field in 2D turbulence is required to interpret the observed scaling behavior.
description: 13 pages with 10 figures
Time dependent intrinsic correlation analysis of temperature and dissolved oxygen time series using empirical mode decomposition
Creators: name: Huang, Y. X.
name: Schmitt, Francois G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: In the marine environment, many fields have fluctuations over a large range of different spatial and temporal scales. These quantities can be nonlinear \red{and} non-stationary, and often interact with each other. A good method to study the multiple scale dynamics of such time series, and their correlations, is needed. In this paper an application of an empirical mode decomposition based time dependent intrinsic correlation, \red{of} two coastal oceanic time series, temperature and dissolved oxygen (saturation percentage) is presented. The two time series are recorded every 20 minutes \red{for} 7 years, from 2004 to 2011. The application of the Empirical Mode Decomposition on such time series is illustrated, and the power spectra of the time series are estimated using the Hilbert transform (Hilbert spectral analysis). Power-law regimes are found with slopes of 1.33 for dissolved oxygen and 1.68 for temperature at high frequencies (between 1.2 and 12 hours) \red{with} both close to 1.9 for lower frequencies (time scales from 2 to 100 days). Moreover, the time evolution and scale dependence of cross correlations between both series are considered. The trends are perfectly anti-correlated. The modes of mean year 3 and 1 year have also negative correlation, whereas higher frequency modes have a much smaller correlation. The estimation of time-dependent intrinsic correlations helps to show patterns of correlations at different scales, for different modes.
description: 35 pages with 22 figures
Tomography of particle plasmon fields from electron energy loss spectroscopy
Creators: name: Hörl, Anton
name: Trügler, Andreas
name: Hohenester, Ulrich
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically investigate electron energy loss spectroscopy (EELS) of metallic nanoparticles in the optical frequency domain. Using a quasistatic approximation scheme together with a plasmon eigenmode expansion, we show that EELS can be rephrased in terms of a tomography problem. For selected single and coupled nanoparticles we extract the three-dimensional plasmon fields from a collection of rotated EELS maps. Our results pave the way for a fully three-dimensional plasmon-field tomography and establish EELS as a quantitative measurement device for plasmonics.
description: 5 pages, to appear in Phys. Rev. Lett. (2013)
Proton stability in low-scale extra-dimensional grand unified theories
Creators: name: Kakizaki, Mitsuru
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose an extra-dimensional mechanism that adequately suppresses the rate of proton decay mediated by the X-bosons in grand unified theories. The X-bosons and their Kaluza-Klein modes are localized in the extra spatial dimensions due to the kink configuration of the adjoint Higgs multiplet that is responsible for the spontaneous breaking of the unified gauge group while the standard model gauge bosons freely propagate in the bulk. By localizing fermion multiplets apart from the X-bosons in the extra dimensions, the resulting four-dimensional couplings that give rise to proton decay are exponentially suppressed, leading to the longevity of proton even when the mass scale of the X-bosons is much lower than the usual unification scale.
description: 10 pages, 2 figures
Non-abelian Weyl Commutation Relations and the Series Product of Quantum Stochastic Evolutions
Creators: name: Evans, D. Gwion
name: Gough, J. E.
name: James, M. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that the series product, which serves as an algebraic rule for connecting state-based input/output systems, is intimately related to the Heisenberg group and the canonical commutation relations. The series product for quantum stochastic models then corresponds to a non-abelian generalization of the Weyl commutation relation. We show that the series product gives the general rule for combining the generators of quantum stochastic evolutions using a Lie-Trotter product formula.
description: 12 pages
Üçüncü nesil insan haklarına Müslümanlar katkı sağlayacak
Creators: name: Şentürk, Recep
Publisher: name: Zenodo
Year: 2020
Subjects: Müslüman
İnsan Hakları
Ademiyet
İslam
Üçüncü Nesil

description: Şüphesiz “insan hakları" nosyonu en netameli kavramsallaştırmaların başında geliyor. İnsan hakları söyleminin oldukça yüklü ve sorunlu tarihi, mesele nasıl ele alınırsa alınsın daha en başından belli bir gerilimle beraber yol almayı kaçınılmaz kılıyor. Batılı söylem ağının sorunları çözmekten çok çoğaltan, daha da önemlisi “daraltan" ele alış şeklini söz konusu insan ve onun hakları olduğunda da görmek mümkün. Bu daralmanın en büyük nedeni insanı merkeze alan düşünüşle ilgili. Genel olarak dinin, özelde İslam'ın “insan haklarıyla ilgili ne türden bir teklifi olabilir? İslam'ın sahip olduğu ontolojik çerçeve bu "kadim" sorunun çözümüne nasıl bir katkı sağlayabilir? îbn Haldun Üniversitesi Rektörü Prof. Dr. Recep Şentürk, son kitabı İsmet Âdemiyetledir'de bu soruların cevabını arıyor. Biz de kitabını merkeze alarak bu konuyu konuşmak için kendisiyle buluşup bir söyleşi gerçekleştirdik.
Second order structure function in fully developed turbulence
Creators: name: Huang, Y. X.
name: Schmitt, Francois G.
name: Lu, Z. M.
name: Fougairolles, P.
name: Gagne, Y.
name: Liu, Y. L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We relate the second order structure function of a time series with the power spectrum of the original variable, taking an assumption of statistical stationarity. With this approach, we find that the structure function is strongly influenced by the large scales. The large scale contribution and the contribution range are respectively 79% and 1.4 decades for a Kolmogorov -5/3 power spectrum. We show numerically that a single scale influence range, over smaller scales is about 2 decades. We argue that the structure function is not a good method to extract the scaling exponents when the data possess large energetic scales. An alternative methodology, the arbitrary order Hilbert spectral analysis which may constrain this influence within 0.3 decade, is proposed to characterize the {scaling} property directly in an amplitude-frequency space. An analysis of passive scalar (temperature) turbulence time series is presented to show the influence of large scale structures in real turbulence, and the efficiency of the Hilbert-based methodology. The corresponding scaling exponents $ζ_θ(q)$ provided by the Hilbert-based approach indicate that the passive scalar turbulence field may be less intermittent than what was previously believed.
description: 8 pages with 9 figures
Design of efficient single stage chirped pulse difference frequency generation at 7 μm driven by a dual wavelength Ti:sapphire laser
Creators: name: Erny, Christian
name: Hauri, Christoph P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a design for a high-energy single stage mid-IR difference frequency generation adapted to a two-color Ti:sapphire amplifier system. The optimized mixing process is based on chirped pulse difference frequency generation (CP-DFG), allowing for a higher conversion efficiency, larger bandwidth and reduced two photon absorption losses. The numerical start-to-end simulations include stretching, chirped pulse difference frequency generation and pulse compression. Realistic design parameters for commercially available non linear crystals (GaSe, AgGaS2, LiInSe2, LiGaSe2) are considered. Compared to conventional un-chirped DFG directly pumped by Ti:sapphire technology we report a threefold increase of the quantum efficiency. Our CP-DFG scheme provides up to 340 μJ pulse energy directly at 7.2 μm when pumped with 3 mJ and supports a bandwidth of up to 350 nm. The resulting 240 fs mid-IR pulses are inherently phase stable.
TRATAMIENTO DE LIXIVADO DEL RELLENO SANITARIO LA CORTADA DE PAMPLONA NORTE DE SANTANDER MEDIANTE UN REACTOR UASB A ESCALA LABORATORIO
Creators: name: Maldonado Maldonado, Julio
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 401106
subject: Waste management, reduction, reuse and recycling
classificationCode: 401199
subject: Environmental engineering not elsewhere classified
classificationCode: 310604
subject: Industrial biotechnology diagnostics (incl. biosensors)

description: The large amount of waste entering the landfill, especially organic waste, is the generator of odors, vectors and other environmental problems such as leachate. Leachate is the liquid produced when water from surface runoff, rain or that produced by the dynamics of decomposition of the waste comes into contact with the deposited waste, exceeding its absorption capacity, passing through them and increasing the concentration of contaminants. This liquid has the capacity to move to groundwater, surface water and the surrounding soil (Zamorano, Calvo, Moreno, & Ramos, 2006). Currently, due to the environmental crisis in which we find ourselves, the search and implementation of new alternatives for wastewater treatment, as well as research that allows improving wastewater processes, is of vital importance.16established treatment. Furthermore, considering that leachate contains all the main contaminating characteristics, that is, high content of organic matter, nitrogen and phosphorus, abundant presence of pathogens and also toxic substances such as heavy metals and organic constituents, the great threat of contamination of soils and water sources nearby that they generate and the management that is currently given in the landfill; A feasible option for the treatment of these is the implementation of biological treatments. Under this criterion, this work is based on the treatment of leachate generated in the La Corta landfill in Pamplona Norte de Santander. For this purpose, the implementation of an upflow anaerobic sludge blanket reactor (UASB) on a laboratory scale is proposed; The reactor will be operated at a constant inlet temperature of 20°C, for which a system of temperature controllers will be used, the COD concentrations at the inlet and outlet of the reactor will be verified and determined to determine the removal efficiency of the reactor. same.
Spectral Aspects of the Skew-Shift Operator: A Numerical Perspective
Creators: name: Bourgain-Chang, Eric
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we perform a numerical study of the spectra, eigenstates, and Lyapunov exponents of the skew-shift counterpart to Harper's equation. This study is motivated by various conjectures on the spectral theory of these 'pseudo-random' models, which are reviewed in detail in the initial sections of the paper. The numerics carried out at different scales are within agreement with the conjectures and show a striking difference compared with the spectral features of the Almost Mathieu model. In particular our numerics establish a small upper bound on the gaps in the spectrum (conjectured to be absent).
description: 25 pages, 14 figures
Site‐Specific Antibody Fragment Conjugates for Reversible Staining in Fluorescence Microscopy
Creators: name: Schwach, Jonathan
name: Kolobynina, Ksenia
name: Brandstetter, Katharina
name: Gerlach, Marcus
name: Ochtrop, Philipp
name: Helma, Jonas
name: Hackenberger, Christian
name: Harz, Hartmann
name: Cardoso, M. Cristina
name: Leonhardt, Heinrich
name: Stengl, Andreas
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: antibody conjugates
subject: immunofluorescence staining
subject: nanobodies
subject: peptide nucleic acids
subject: super-resolution microscopy
subject: Tub-tag labelling
subject: 540 Chemie und zugeordnete Wissenschaften
subject: 572 Biochemie

description: Antibody conjugates have taken a great leap forward as tools in basic and applied molecular life sciences that was enabled by the development of chemoselective reactions for the site‐specific modification of proteins. Antibody‐oligonucleotide conjugates combine the antibody's target specificity with the reversible, sequence‐encoded binding properties of oligonucleotides like DNAs or peptide nucleic acids (PNAs), allowing sequential imaging of large numbers of targets in a single specimen. In this report, we use the Tub‐tag® technology in combination with Cu‐catalyzed azide‐alkyne cycloaddition for the site‐specific conjugation of single DNA and PNA strands to an eGFP‐binding nanobody. We show binding of the conjugate to recombinant eGFP and subsequent sequence‐specific annealing of fluorescently labelled imager strands. Furthermore, we reversibly stain eGFP‐tagged proteins in human cells, thus demonstrating the suitability of our conjugation strategy to generate antibody‐oligonucleotides for reversible immunofluorescence imaging.
Entropy analysis of word-length series of natural language texts: Effects of text language and genre
Creators: name: Kalimeri, Maria
name: Constantoudis, Vassilios
name: Papadimitriou, Constantinos
name: Karamanos, Kostantinos
name: Diakonos, Fotis K.
name: Papageorgiou, Haris
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computation and Language (cs.CL)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We estimate the $n$-gram entropies of natural language texts in word-length representation and find that these are sensitive to text language and genre. We attribute this sensitivity to changes in the probability distribution of the lengths of single words and emphasize the crucial role of the uniformity of probabilities of having words with length between five and ten. Furthermore, comparison with the entropies of shuffled data reveals the impact of word length correlations on the estimated $n$-gram entropies.
description: 9 pages, 7 figures
Recep Şentürk ile İsmet Âdemiyetledir kitabı üzerine konuşma
Creators: name: Şentürk, Recep
Publisher: name: Zenodo
Year: 2020
Subjects: İnsan Hakları
Recep Şentürk
İsmet Âdemiyyetledir
Fıkh
İslam

description: - Kitabınız, insan haklarının kaynağını ve gelişimini Batı merkezli bir tarihselliğe dayandıran oryantalist yaklaşımlara karşı bir cevap niteliği taşımakta. En azından İslam dünyasındaki problemin dinî ve kitabi kaynaklara bağlanmayacağına ilişkin hem teorik hem de pratik argümanları yalın, açıklayıcı bir dille tespit ediyorsunuz. Bu konuda nassı referans aldığımızda, evrenselci görüşle devletçi-vatandaşçı görüşün her ikisini de doğrulayabilecek tutarlı, sahih bir temellendirmeden (mantıksal gidimlilikten) söz edilebilir mi? Yoksa bu yorumların ağırlık merkezini, şartlara ve ihtiyaçlara işleyenfarklı mantık dizgeleri mi oluşturuyor?...
title: Le lotte per il diritto alla terra in Marocco tra eredità coloniale, privatizzazioni neo-liberiste e patriarcato nel lavoro di ‘ricerca- cittadina’ di Souriya al-Kahlaoui
Creators: name: Borrillo, Sara
Publisher: name: La camera blu. Rivista di studi di genere
Year: 2018

description: Anche sulla base di interviste realizzate con Souriya Al-Kahlaoui, in questo intervento contestualizzo i contenuti affrontati nella sua ricerca e nel suo lavoro documentaristico. Nel documentario Landless Moroccans, Marocchini senza terra (Marocco, 2017, 50’), la sociologa prende in esame le ragioni delle proteste dell’antica tribù dei Guich di Rabat per il diritto alla terra e ricostruisce la lotta delle donne che resistono all’interazione tra norme patriarcali, disposizioni coloniali, interessi economici neo-liberiste. Dedicando attenzione anche al complesso ruolo di ricercatrice e attivista di Souriya Al Kahlaoui, definisco la sua ricerca-azione un esempio di ‘ricerca-cittadina’ che restituisce visibilità e parola ai protagonisti del fenomeno sociale indagato e al tempo stesso da senso alla propria identità di cittadina marocchina.
description: La camera blu. Rivista di studi di genere, N. 18 (2018): Distruzioni ambientali: testimonianze e lotte di donne
Conservation of Total Escape from Hydrodynamic Planetary Atmospheres
Creators: name: Tian, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Atmosphere escape is one key process controlling the evolution of planets. However, estimating the escape rate in any detail is difficult because there are many physical processes contributing to the total escape rate. Here we show that as a result of energy conservation the total escape rate from hydrodynamic planetary atmospheres where the outflow remains subsonic is nearly constant under the same stellar XUV photon flux when increasing the escape efficiency from the exobase level, consistent with the energy limited escape approximation. Thus the estimate of atmospheric escape in a planet's evolution history can be greatly simplified.
title: Floods and insalubrity as the trigger for city restructuring in Spain: the case of Burgos
Creators: name: Polo Martín, Bárbara
Publisher: name: UPLanD - Journal of Urban Planning, Landscape & environmental Design
Year: 2018

description: If we want to understand the morphological configuration of the urban space of some Spanish cities, it is necessary to research the different types of cartography that exist in the city. Among the many kinds of maps produced over time, we find a type of cartography that is a direct product of the interests on the structure of the city: the maps of civil engineers.
The topographic map of Burgos created by the civil engineers Mariano Martín Campos and Eduardo Lostau in 1894 and their sanitary project are framed within a type of cartography denominated hydrological cartography. These types of maps, which have scarcely been studied, were the result of the approach of bringing water to cities, channelling rivers, or installing sewerage systems.
This is the case of Burgos, where the urban planning was a product of the search for a solution to the floods and the insalubrity problems that had existed for decades, and of a desire, therefore, to restructure the city. In addition, as an added value, this map constitutes the first plan proposed at 1: 1,000 scale and with precise altimetry. The accuracy of this map led the civil engineers to propose it as the basis for a plan of alignments. In this way, this map is presented as the beginning of the internal (i.e., sewerage system and channelled rivers) and external (i.e., streets) restructuring of the city and an example for the rest of Spanish cities with the same problems: floods, restructuring of the streets and sanitation.
description: UPLanD - Journal of Urban Planning, Landscape & environmental Design, V. 3 N. 2: Urban Water Management
title: Environment Friendly and Sustainable Transportation in Harare: Is a functional Transportation Tool Box Model the Answer?
Creators: name: Tanyanyiwa, Vincent Itai
Publisher: name: UPLanD - Journal of Urban Planning, Landscape & environmental Design
Year: 2018

description: Transport is an essential part of everyday life and is central to sustainable development. It enables access to employment, business, education, health services, and social interaction. The world’s prosperity and well-being are inextricably linked to transport and the choices made available to them. This paper reviews current thinking about sustainable transportation as part of a broader strategy of transportation and land use planning for sustainability in Harare. Strategies for increasing transportation sustainability include demand management, operations management, pricing policies, vehicle technology improvements, clean fuels, and integrated land use and transportation planning. The transportation toolbox presents a range of sustainable strategies that can potentially address transportation issues within a corridor to provide a systematic approach to develop projects to address corridor transportation needs. As Harare grows, traffic generation is anticipated to increase with significant impact on the transportation system. A lack of sustainable transport infrastructure and affordable services remains a major obstacle to the development of the transport sector in Harare.
description: UPLanD - Journal of Urban Planning, Landscape & environmental Design, V. 3 N. 1: Sustainability
Chiral edge dynamics and quantum Hall physics in synthetic dimensions with an atomic erbium Bose-Einstein condensate
Creators: name: Roell, Roberto Vittorio
name: Laskar, Arif Warsi
name: Huybrechts, Franz Richard
name: Weitz, Martin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Quantum Hall physics is at the heart of research on both matter and artificial systems, such as cold atomic gases, with non-trivial topological order. We report on the observation of a chiral edge current by transferring atomic wavepackets simultaneously to opposite edges of a synthetic Hall system realized in the two-dimensional state space formed by one spatial and one synthetic dimension encoded in the J=6 electronic spin of erbium atoms. To characterize the system, the Hall drift of the employed atomic Bose-Einstein condensate in the lowest Landau-like level is determined. The topological properties are verified by determining the local Chern marker, and upon performing low-lying excitations both cyclotron and skipping orbits are observed in the bulk and edges respectively. Future prospects include studies of novel topological phases in cold atom systems.
description: 5 pages, 4 figures
Scaling of maximum probability density functions of velocity and temperature increments in turbulent systems
Creators: name: Huang, Y. X.
name: Schmitt, Francois G.
name: Zhou, Q.
name: Qiu, X.
name: Shang, X. D.
name: Lu, Z. M.
name: Liu, and Y. L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: In this paper, we introduce a new way to estimate the scaling parameter of a self-similar process by considering the maximum probability density function (pdf) of tis increments. We prove this for $H$-self-similar processes in general and experimentally investigate it for turbulent velocity and temperature increments. We consider turbulent velocity database from an experimental homogeneous and nearly isotropic turbulent channel flow, and temperature data set obtained near the sidewall of a Rayleigh-Bénard convection cell, where the turbulent flow is driven by buoyancy. For the former database, it is found that the maximum value of increment pdf $p_{\max}(τ)$ is in a good agreement with lognormal distribution. We also obtain a scaling exponent $α\simeq 0.37$, which is consistent with the scaling exponent for the first-order structure function reported in other studies. For the latter one, we obtain a scaling exponent $α_θ\simeq0.33$. This index value is consistent with the Kolmogorov-Obukhov-Corrsin scaling for passive scalar turbulence, but different from the scaling exponent of the first-order structure function that is found to be $ζ_θ(1)\simeq 0.19$, which is in favor of Bolgiano-Obukhov scaling. A possible explanation for these results is also given.
description: 25 pages with 10 figures
title: Urban regeneration of Medellin. An example of sustainability
Creators: name: De Tomás Medina, Carmen
Publisher: name: UPLanD - Journal of Urban Planning, Landscape & environmental Design
Year: 2018

description: The city of Medellin has suffered a chaotic urban growth since early twentieth century, caused by the echoes of industrialization suffered in its historical fabric and by the migration of people from the countryside to the city. As a consequence, the central areas were abandoned and numerous peripheral pieces were built which drowned the traditional city. In this way, the regular and orderly original city became composed mainly of disconnected peripheral tissues, lacking in organization, infrastructures and minimum services, unhygienic fabrics with inhuman living conditions on which delinquency and marginality also grew, becoming the most dangerous areas of the city.
The urgent solution to the problems unleashed brought with it the realization of a series of urban and social reforms. The construction of a new way of transport was a definitive agent in the sustainable regeneration of the city. At this point we have the purpose of this research that aims to highlight the role of metro-cable in the process of urban regeneration, transforming Medellín from being one of the most dangerous cities in Colombia to an example of sustainability.
description: UPLanD - Journal of Urban Planning, Landscape & environmental Design, V. 3 N. 1: Sustainability
title: Water landscapes: from risk management to a urban regeneration strategy
Creators: name: Mariano, Carmela
name: Marino, Marsia
Publisher: name: UPLanD - Journal of Urban Planning, Landscape & environmental Design
Year: 2018

description: This contribution is inserted in the discourse related to the climate change issues, which implies the need of identifying new and environmentally sustainable urban shapes through actions of reconnection and reconfiguration of the morphological and environmental components, within the broader strategies of urban regeneration and resilience.
In particular, the main topic of this contribution, is related to the urban contexts, which are currently affected by flooding phenomena in their coastal areas due to the progressive sea level rise, for which the recovery of safety condition is linked to the environmental dimension of the matter. This state of affairs, questions some structural limitations of the existent urban shapes, and it suggests a change of perspective, where cities and territories must be rethought, assuming water as an element generating the identity of a new urban shape.
In this scenario, the experience coming from the Danish cities of Vejle and Aalborg is hereby presented, because of their capacity to have transformed the “calamitous” event of flooding in a proper strategy of urban regeneration which finds its strength in the exploitation of the identity potentials of the maritime landscape.
description: UPLanD - Journal of Urban Planning, Landscape & environmental Design, V. 3 N. 1: Sustainability
Hedef fikri bağımsızlık
Creators: name: Şentürk, Recep
Publisher: name: Zenodo
Year: 2020
Subjects: İbn Haldun Üniversitesi
Fikri Bağımsızlık
Rektör
Recep Şentürk
Üniversiteler

description: Prof. Dr. Recep Şentürk kimdir? 1964’de Çankırı’da doğdu. Marmara Üniversitesi İlahiyat Fakültesini bitirdi. 1988 ’de İstanbul Üniversitesi Edebiyat Fakültesi Sosyoloji bölümünde yüksek lisans yaptı ve aynı bölümde asistan oldu. 1998 yılında ABD’de New York Columbia Üniversitesinde doktora çalışmalarını tamamladı. Atlanta’da bulunan Emory Üniversitesi Hukuk Fakültesinde misafir araştırmacı olarak insan hakları konusunda araştırma yaptı. 2003’de doçent, 2008 yılında profesör oldu. Ayrıca İSAM’da araştırmacı olarak çalıştı. 2010 yılında kurulan ve bu yıl İbn Haldun Üniversitesi bünyesine katılan Medeniyetler İttifakı Enstitüsünün kurucu müdürlüğünü yürütmektedir. 10 Mart 2017 tarihinde İbn Haldun Üniversitesi Kurucu Rektörü olarak atanmıştır...
New EoR Power Spectrum Limits From MWA Phase II Using the Delay Spectrum Method and Novel Systematic Rejection
Creators: name: Kolopanis, Matthew
name: Pober, Jonathan
name: Jacobs, Daniel C.
name: McGraw, Samantha
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present an analysis of Epoch of Reionization data from Phase II of the Murchison Widefield Array using the \texttt{simpleDS} delay spectrum pipeline. Prior work analyzed the same observations using the FHD/$\varepsilon$ppsilon imaging pipeline, and so the present analysis represents the first time that both principal types of 21 cm cosmology power spectrum estimation approaches have been applied to the same data set. Our limits on the 21 cm power spectrum amplitude span a range in $k$ space of $|k| < 1~h_{100}{\rm Mpc}^{-1}$ with a lowest measurement of $Δ^2(k) \leq$ $4.58\times10^3$ mK$^2$ at $k = 0.190 h_{100}\rm{Mpc}^{-1}$ and $z = 7.14$. In order to achieve these limits, we need to mitigate a previously unidentified common mode systematic in the data set. If not accounted for, this systematic introduces an overall \emph{negative} bias that can make foreground contaminated measurements appear as stringent, noise-limited constraints on the 21 cm signal amplitude. The identification of this systematic highlights the risk in modeling systematics as positive-definite contributions to the power spectrum and in ``conservatively'' interpreting all measurements as upper limits.
description: 19 pages, 12 figures, Accepted by MNRAS; Updated to match published version
Rotation and alignment of high-$j$ orbitals in transfermium nuclei
Creators: name: He, Xiao-Tao
name: Zhang, Zhen-Hua
name: Zeng, Jin-Yan
name: Zhao, En-Guang
name: Ren, Zhong-Zhou
name: Scheid, Werner
name: Zhou, Shan-Gui
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The structure of nuclei with $Z\sim100$ is investigated systematically by the Cranked Shell Model (CSM) with pairing correlations treated by a Particle-Number Conserving (PNC) method. In the PNC method, the particle number is conserved and the Pauli blocking effects are taken into account exactly. By fitting the experimental single-particle spectra in these nuclei, a new set of Nilsson parameters ($κ$ and $μ$) is proposed. The experimental kinematic moments of inertia and the band-head energies are reproduced quite well by the PNC-CSM calculations. The band crossing, the effects of high-$j$ intruder orbitals and deformation are discussed in detail.
description: To appear in the Proceedings of the International Nuclear Physics Conference (INPC2013), June 2-7, 2013, Florence, Italy
Non-Regular Employment in the Italian Regions in the Period 2004-2020
Creators: name: Leogrande, Angelo
Publisher: name: Zenodo
Year: 2023

description: Istat calculates the value of irregular workers in the Italian regions. The variable is calculated as the percentage of employees who do not comply with current legislation on labour, tax and social security matters out of the total number of employees. The data refers to Italian regions and macro-regions between 2004 and 2020.
title: Assessment of urban regeneration activities in the central area of Jos town, Nigeria
Creators: name: Musa, Japhet
name: Dung-Gwom, John Y.
Publisher: name: UPLanD - Journal of Urban Planning, Landscape & environmental Design
Year: 2018

description: This paper examines land use changes and urban regeneration activities in the central area of Jos, Nigeria; the processes and forces driving those changes. The central area has been expanding into adjacent streets over the past nearly two decades due to increased pressure for commercial and retail space resulting from the fire incident that burnt the Jos Main Market in February 2002 and increase in the urban population.  The research employed positivist and interpretivist approaches, where qualitative and quantitative methods were used to collect data.  Land use changes were analyzed from satellite images and maps while questionnaires were administered to property owners and shoppers. The study area covers an area of about 183.37 hectares.  Regeneration activities have increased during the period under study with private-sector-led activities accounting for 668 of a total of 797  properties (about 84% ) and covering an area of 59 hectares (about 41% of the  land area). Though the processes of change are unstoppable, even desirable; these have created a number of problems such as inner city congestion due inadequate parking space, illegal motor parks and the proliferation of commercial activities unto the adjacent streets and pedestrian walkways; inadequate utilities/services; poor waste collection and management practices and a degraded urban environment. Urban regeneration was proceeding in a piecemeal and uncoordinated manner without overall planning vision towards achieving clear socio-economic and environmental objectives and bereft of community values of enhancing public safety and security.
description: UPLanD - Journal of Urban Planning, Landscape & environmental Design, V. 3 N. 1: Sustainability
On structure-preserving transformations of the Ito generator matrix for model reduction of quantum feedback networks
Creators: name: Nurdin, H. I.
name: Gough, J. E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Two standard operations of model reduction for quantum feedback networks, elimination of internal connections under the instantaneous feedback limit and adiabatic elimination of fast degrees of freedom, are cast as structure-preserving transformations of Itō generator matrices. It is shown that the order in which they are applied is inconsequential.
description: 15 pages, 1 figure
title: Building the resilient city. Strategies and tools for the city masterplan
Creators: name: Barbarossa, Luca
name: Pappalardo, Viviana
name: Martinico, Francesco
Publisher: name: UPLanD - Journal of Urban Planning, Landscape & environmental Design
Year: 2018

description: Urban risks and climate change mitigation and adaptation, are new challenges for enhancing the city resilience. City planning plays a fundamental role to cope with these challenges in new settlements design and urban renewal actions, taking into account the socio-ecological complexity of the city.
Catchment hydrologic response is influenced by several factors including land use choices and policy tools. Understanding potential effects of urban development is the basis for the implementation of storm‐water control planning actions, along with appropriate mitigation and compensatory measures at the catchment scale.
This paper presents a land use planning experience conducted by the University of Catania (Lapta Lab). The focus is on the role of municipal land use planning, a key element of the resilient city.
The settlement system of city of Avola, in Sicily, is illustrated as well as the natural characteristics of the site, relevant for the hydrologic response. The main steps of the planning process are described, in order to explain how urban resilience issues were practically addressed.
The case presented stimulate several considerations about water sensitive urban planning and the opportunities for the inclusion of nature based solutions, such as sustainable urban drainage systems and regulating services, in land-use planning processes.
description: UPLanD - Journal of Urban Planning, Landscape & environmental Design, V. 3 N. 2: Urban Water Management
Rota-Baxter operators on $sl(2,C)$ and solutions of the classical Yang-Baxter equation
Creators: name: Pei, Jun
name: Bai, Chengming
name: Guo, Li
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 16T25, 81R15

description: We explicitly determine all Rota-Baxter operators (of weight zero) on $sl(2,C)$ under the Cartan-Weyl basis. For the skew-symmetric operators, we give the corresponding skew-symmetric solutions of the classical Yang-Baxter equation in $sl(2,C)$, confirming the related study by Semenov-Tian-Shansky. In general, these Rota-Baxter operators give a family of solutions of the classical Yang-Baxter equation in the 6-dimensional Lie algebra $sl(2,C) \ltimes_{{\rm ad}^{\ast}} sl(2,C)^{\ast}$. They also give rise to 3-dimensional pre-Lie algebras which in turn yield solutions of the classical Yang-Baxter equation in other 6-dimensional Lie algebras.
description: 17 pages
title: Cycling lanes and Stormwater Management: an integrated project. Montesilvano as a case study
Creators: name: Clemente, Antonio Alberto
Publisher: name: UPLanD - Journal of Urban Planning, Landscape & environmental Design
Year: 2018

description: The frequency of flooding in Montesilvano has risen steadily in recent years. Linked to this phenomenon, the research agreement between the Department of Architecture in Pescara and the Town of Montesilvano includes the general objective of verifying whether the network of cycling lanes can help resolve this issue. Legislation, guidelines and best practices in his sector provide no useful indications. They are linked to a qualitative hypothesis whose priority in almost all cases focuses on creating the highest possible number of kilometres of safe, functional and intermodal cycling lanes.
To identify operative references to the links between cycling lanes and stormwater management we must look at plans designed to contrast climate change. Many have a specific section dedicated to this theme: examples include Boston, Copenhagen, Melbourne, Ottawa and Philadelphia. Their comparison reveals that improving stormwater management requires multiple actions. Principal actions include: breaking free of sector-specific logics, integrated projects for the spaces of the network and associated areas and the recognition of the importance of the relationship with context. In Montesilvano, marked by two parallel north-south axes (the Parkway and the Waterfront) and its five perpendicular east-west lines (Grandi alberghi, via Strasburgo, via Marinelli, via Torrente Piomba, Palaroma), there is a need to identify areas ready to welcome a project that successfully combines bicycle mobility with stormwater treatment and management. This is the responsibility the research intends to assume in the near future.
description: UPLanD - Journal of Urban Planning, Landscape & environmental Design, V. 3 N. 1: Sustainability