cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
KAIROS. Griechisches Unterrichtswerk Band 1
Creators: name: Hoffmann, Günther
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: KAIROS. Griechisches Unterrichtswerk Band 1. Herausgegeben von Andreas Weileder und Herbert Meyerhöfer. Bearbeitet von dem Autorenteam Thorsten Gatzky, Petra Haß, Markus Heber, Rüdiger Hobohm, H. Meyerhöfer, Georg Ott, Günter Vogel und A. Weileder. Bamberg: C. C. Buchner 2006, 256 S, (ISBN 978-3-7661-4841-4)
description: Forum Classicum, Nr. 4 (2006): Forum Classicum
Modelling the early mass-ejection in jet driven protostellar outflows. Lessons from Cep E
Creators: name: Rivera-Ortiz, P. R.
name: Schutzer, A. de A.
name: Lefloch, B.
name: Gusdorf, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have used the axisymmetric chemo-hydrodynamical code WALKIMYA-2D to numerically model and reproduce the physical and CO emission properties of the jet-driven outflow from the intermediate-mass protostar Cep E, which was observed at $\sim 800$au resolution in the CO $J=2\to 1$ line with the IRAM interferometer. Our simulations take into account the observational constraints available on the physical structure of the protostellar envelope to provide constraints on the dynamics of the inner protostellar environment from the study of the outflow/jet propagation away from the launch region. WALKIMYA-2D successfully reproduces the main qualitative and quantitative features of the Cep E outflow and the jet kinematics, naturally accounting for their time variability. Signatures of internal shocks are detected as knots along the jet. In the early times of the ejection process, the young emitted knots interact with the dense circumstellar envelope through high-velocity, dissociative shocks, which strongly decrease the CO gas abundance in the jet. As time proceeds, the knots propagate more smoothly through the envelope and dissociative shocks disappear after $\sim 10^3$ yr. The distribution of CO abundance along the jet shows that the latter bears memory of the early dissociative phase in the course of its propagation. Analysis of the velocity field shows that the jet material mainly consists of gas entrained from the circumstellar envelope and accelerated away from the protostar at $700$ au scale. As a result, the overall jet mass loss rate appears higher than the actual mass ejection rate by a factor $\sim 3$. Numerical modeling of the Cep E jet-driven outflow and comparison with the CO observations have allowed us to peer into the outflow formation mechanism with unprecedented detail and to retrieve the history of the mass-loss events that have shaped the outflow.
title: Ανάλυση και αξιολόγηση του μοντέλου προσομοίωσης ταμιευτήρων BOAST II-PC VERSION και εφαρμογή στη μελέτη πετρελαϊκού κοιτάσματος
Creators: name: Ζέρβας Σωτήριος
name: Παυλογιαννόπουλος Σταύρος
Publisher: name: Technical University of Crete
Year: 1994

description: Μη διαθέσιμο
Next-to-leading order perturbative contributions in the QCD sum rules for mesonic two-point correlation functions with unequal quark masses
Creators: name: Wang, Zhi-Gang
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we assume that the two quarks have unequal masses and calculate the next-to-leading order contributions to the spectral densities of the mesonic two-point correlation functions of the vector, axialvector, scalar and pseudoscalar currents. We take dimensional regularization to regularize both the ultraviolet and infrared divergences, and use optical theorem to obtain the spectral densities directly, furthermore, we present some necessary technical details for readers convenience. The analytical expressions are applicable in many phenomenological analysis besides the QCD sum rules.
description: 14 pages, 6 figures
Best practices for postprocessing ensemble climate forecasts. Part I: selecting appropriate recalibration methods
Creators: name: Sansom, Philip
name: Ferro, Christopher
name: Stephenson, David
name: Goddard, Lisa M.
name: Mason, Simon J.
Publisher: name: Columbia University
Year: 2016
Subjects: Climatic changes
Climatic changes--Statistical methods
Probability forecasts (Meteorology)
Long-range weather forecasting
Climatology

description: This study describes a systematic approach to selecting optimal statistical recalibration methods and hindcast designs for producing reliable probability forecasts on seasonal-to-decadal time scales. A new recalibration method is introduced that includes adjustments for both unconditional and conditional biases in the mean and variance of the forecast distribution and linear time-dependent bias in the mean. The complexity of the recalibration can be systematically varied by restricting the parameters. Simple recalibration methods may outperform more complex ones given limited training data. A new cross-validation methodology is proposed that allows the comparison of multiple recalibration methods and varying training periods using limited data. Part I considers the effect on forecast skill of varying the recalibration complexity and training period length. The interaction between these factors is analyzed for gridbox forecasts of annual mean near-surface temperature from the CanCM4 model. Recalibration methods that include conditional adjustment of the ensemble mean outperform simple bias correction by issuing climatological forecasts where the model has limited skill. Trend-adjusted forecasts outperform forecasts without trend adjustment at almost 75% of grid boxes. The optimal training period is around 30 yr for trend-adjusted forecasts and around 15 yr otherwise. The optimal training period is strongly related to the length of the optimal climatology. Longer training periods may increase overall performance but at the expense of very poor forecasts where skill is limited.
Role of Ambient Pressure on Colliding Jets
Creators: name: Li, Minglei
name: Saha, Abhishek
name: Sun, Chao
name: Law, Chung K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this letter, the merging-vs-bouncing response of obliquely-oriented colliding jets under elevated and reduced gaseous environment pressures was experimentally examined. Experiments with water and n-tetradecane confirmed that the collision outcome transitions from merging to bouncing, and then to merging again, when the impact velocity was increased. This behavior which was previously reported for atmospheric pressure, has now also been observed at elevated and reduced pressures. New results also show that there exists a critical pressure (0.9 bar for tetradecane and 5 bar for water) below which increasing pressure promotes bouncing (expands the bouncing regime), while beyond this, merging is promoted (reduces the bouncing regime) instead. This leads to a non-monotonic influence of pressure on the non-coalescence outcomes of collisional jets, which was not previously reported. The study provides evidence of new behaviors in colliding jets at reduced and elevated pressures, which differs from well-studied droplet-droplet collisions.
description: Corrected the abstract, results unchanged, a few minor edits based on reviews. This is the published version in Phy. Fluids
Entanglement Island and Page Curve in Wedge Holography
Creators: name: Miao, Rong-Xin
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Entanglement islands play an essential role in the recent breakthrough in resolving the black hole information paradox. However, whether entanglement islands can exist in massless gravity theories is controversial. It is found that entanglement islands disappear in the initial model of wedge holography with massless gravity on the brane. As a result, the entanglement entropy of Hawking radiation becomes a time-independent constant, and there is no Page curve. In this paper, we recover massless entanglement islands in wedge holography with suitable DGP gravity or higher derivative gravity on the branes. We study two typical cases. In the first case, we consider a black hole on the strong-gravity brane and a bath on the weak-gravity brane. It is similar to the usual double holography with non-gravitational baths. In the second case, we discuss two black holes on the two branes with the same gravitational strength. We recover massless entanglement islands and non-trivial Page curves in both cases. We also argue that the entanglement island is consistent with massless gravity. Our results strongly support that entanglement islands can exist in long-range theories of gravity.
description: 42 pages, 20 figures, get a new lower bound for DGP parameter in sect. 2.4, add more discussions, revision published in JHEP
Electronic interaction $U_{pp}$ on oxygen $p$ orbitals in oxides: Role of correlated orbitals on the example of UO$_2$ and TiO$_2$
Creators: name: Outerovitch, Robinson
name: Amadon, Bernard
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We carry out a detailed study of the role of electronic interaction on $p$ oxygen orbitals in a Mott insulator oxide (UO$_2$) and a charge transfer oxide (TiO$_2$). First, we calculate values of effective interactions \Uff, \Upp{} and $U_{fp}$ in UO$_2$ and \Udd{}, \Upp{} and $U_{dp}$ in TiO$_2$. Second, we analyze the role of electronic interactions \Upp{} on $p$ orbitals of oxygen in spectral and structural properties. Finally, we show that this role depends strongly on the definition of correlated orbitals and that using Wannier functions leads to more physical results for spectral and structural properties.
Opioid sparing analgesia: Continuous intraoperative infusion of dexmedetomidine versus lidocaine for intracranial surgeries in children: A double-blind randomized clinical trial
Creators: name: Kamel, Alshaimaa Abdel Fattah
name: Naby, Sara Mohamed Abdel
name: Elmesallamy, Wael Abdel Rahman Ali
name: Salem, Dina Abdelhameed Elsadek
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: The usage of opioid sparing analgesia in different surgeries leads to varied results. The aim of this study is to compare between the effects of continuous intraoperative infusion of dexmedetomidine versus lidocaine as opioid sparing analgesia in children undergoing intracranial surgeries. It is a double-blind randomized clinical study in which, 64 children were randomly allocated into 2 equal groups; 32 children for each group. The first one was dexmedetomidine group which received continuous intraoperative dexmedetomidine iv infusion [1ug/kg dexmedetomidine over 15 minutes as a loading dose and 0.5ug/kg/h for maintenance]. The second one was lidocaine group which received continuous intraoperative lidocaine iv infusion [1.5mg/kg lidocaine over 15 minutes as a loading dose and 1.5mg/kg/h for maintenance]. The continuous intraoperative iv infusion of each tested drug was stopped 10 minutes before the end the surgical procedure. Intraoperative total fentanyl consumption was significantly reduced in dexmdetomidine compared to lidocaine group ([19.33±11.15 vs 43.10±21.15] ug, 95% CI, -45.8 to -1.7). Children in dexmedetomidine group were significantly more sedated compared to lidocaine group. The time to reach Wong–Baker Faces Pain Rating Scale (WBFPS) scores 4 or more was around 4 hours in dexmedetomidine and around 1hour in lidocaine group. The time to first call of naluphine with dexmedetomidine was significantly prolonged compared to lidocaine ([235.03±5.02 vs 55.87±6.28] min, 95% CI, 176.3-182) with significantly reduced total postoperative naluphine consumption in dexmedetomidine compared to lidocaine ([4.22±1.46 vs 7.96±2.8] mg, 95% CI,-4.9 to -2.6) . The duration of PACU stay was significantly prolonged in lidocaine compared to dexmedetomidine ([99.75±14.36 vs 114.28±10.56] min, 95% CI,-20.8 to -8.2). Continuous Intraoperative intravenous infusion of dexmedetomidine was superior to lidocaine in opioid sparing analgesia during intracranial surgeries in children.
title: Κοκκομετρική και γεωχημική μελέτη του θαλάσσιου χώρου της Μήλου με έμφαση στο υδροδυναμικό καθεστώς της περιοχής και στις περιβαλλοντικές επιπτώσεις
Creators: name: Σταυρόπουλος Θεοδόσης
Publisher: name: Technical University of Crete
Year: 1993

description: Μη διαθέσιμο
Box-counting dimension and differentiability of box-like statistically self-affine functions
Creators: name: Allaart, Pieter
name: Jones, Taylor
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: Primary: 26A27, 28A80, Secondary: 26A30, 60G42

description: We consider a class of "box-like" statistically self-affine functions, and compute the almost-sure box-counting dimension of their graphs. Furthermore, we consider the differentiability of our functions, and prove that, depending on an explicitly computable functional of the model, they are almost surely either differentiable almost everywhere or non-differentiable almost everywhere.
description: 25 pages, 4 figures
Alloying effect on the ideal tensile strength of ferromagnetic and paramagnetic bcc iron
Creators: name: Li, Xiaoqing
name: Schönecker, Stephan
name: Zhao, Jijun
name: Johansson, Börje
name: Vitos, Levente
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Using \emph{ab initio} alloy theory formulated within the exact muffin-tin orbitals theory in combination with the coherent potential approximation, we investigate the ideal tensile strength (ITS) in the $[001]$ direction of bcc ferro-/ferrimagnetic (FFM) and paramagnetic (PM) Fe$_{1-x}M_{x}$ ($M=$ Al, V, Cr, Mn, Co, or Ni) random alloys. The ITS of ferromagnetic (FM) Fe is calculated to be $12.6$\,GPa, in agreement with available data, while the PM phase turns out to posses a significantly lower value of $0.7\,$GPa. Alloyed to the FM matrix, we predict that V, Cr, and Co increase the ITS of Fe, while Al and Ni decrease it. Manganese yields a weak non-monotonic alloying behavior. In comparison to FM Fe, the alloying effect of Al and Co to PM Fe is reversed and the relative magnitude of the ITS can be altered more strongly for any of the solutes. All considered binaries are intrinsically brittle and fail by cleavage of the $(001)$ planes under uniaxial tensile loading in both magnetic phases. We show that the previously established ITS model based on structural energy differences proves successful in the PM Fe-alloys but is of limited use in the case of the FFM Fe-based alloys. The different performance is attributed to the specific interplay between magnetism and volume change in response to uniaxial tension. We establish a strong correlation between the compositional effect on the ITS and the one on the shear elastic constant $C'$ for the PM alloys and briefly discuss the relation between hardenability and the ITS.
description: 6 figures
title: Εξάρτηση της υδατοαπορροφητικότητας και άλλων φυσικοχημικών ιδιοτήτων μπετονιτών της Αγγεριας Μήλου από την ορυκτολογική και χημική σύσταση
Creators: name: Παπαγεωργίου Κωστούλα
Publisher: name: Technical University of Crete
Year: 1992

description: Μη διαθέσιμο
Reconnection-powered fast radio transients from coalescing neutron star binaries
Creators: name: Most, Elias R.
name: Philippov, Alexander A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is an open question whether and how gravitational wave events involving neutron stars can be preceded by electromagnetic counterparts. This work shows that the collision of two neutron stars with magnetic fields well below magnetar-level strengths can produce millisecond Fast-Radio-Burst-like transients. Using global force-free electrodynamics simulations, we demonstrate that electromagnetic flares, produced by overtwisted common flux tubes in the binary magnetosphere, collide with the orbital current sheet and compress it, resulting in enhanced magnetic reconnection. As a result, the current sheet fragments into a sequence of plasmoids, which collide with each other leading to the emission of coherent electromagnetic waves. The resulting millisecond-long burst of radiation should have frequencies in the range of $10-20\,\rm GHz$ for magnetic fields of $B^{\ast}=10^{11}\, \rm G$ at the stellar surfaces.
description: 10 pages, 4 figures, version accepted by PRL
MORPHOMETRIC PARAMETERS OF RATS KIDNEYS UNDER EXPOSURE TO ETHYL ALCOHOL IN THE AGE ASPECT
Creators: name: Teshaev, Sh.Zh.
name: Khamroev, I.S.
Publisher: name: Zenodo
Year: 2023

description: According to the World Health Organization, in 2016 there were over 180 million alcoholics in the world, and the prevalence rate was 2%. And at the same time, the "alcohol" situation in developed countries is different. M. A. Schuckit characterizes the situation in the United States by 2015 as follows: 90% of Americans drink alcohol during their lives, 60-70% drink alcohol systematically, more than 40% have alcohol-related problems, 20% of men and 10% of women abuse alcohol, have alcohol dependence, that is, 10% of men and 3.5% of women suffer from alcoholism.
Effect of combined use of ivermectin and colchicine in COVID-19 patients
Creators: name: Sayed, Rania Gamal El
name: Hafez, Amr Fouad
name: Haggag, Adham Magdy Ahmed Mohammed
name: Alhadidy, Mohamed A.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Despite the great results of the SARS-CoV-2 vaccine, there is an increasing need for effective therapeutics. Increasing viral loads are associated with systemic inflammatory response, more disease progression, and increased mortality, while exaggerated immune responses result in immune overreaction and cytokine storm (CS)-induced acute lung injury. We hypothesize that ivermectin by reducing viral load and colchicine by reducing inflammation when used in combination might improve the outcomes of COVID-19 while offering cheap and safe options. A total of 135 COVID-19 patients were divided into three groups, with 45 patients in each group (colchicine/colchicine and ivermectin/neither of them). Group (A): ivermectin + colchicine + standard care, Group (B): colchicine + standard care, and Group (C): (control group) standard care. We found that colchicine was associated with clinically significant decrease in days of oxygen need, length of ICU stay, less need for mechanical ventilation, and less mortality, while ivermectin failed to add any beneficial effect. Adding ivermectin to the treatment of moderate cases of COVID-19 is not of clinical value, while we support the use of colchicine in such cases. The trial was registered in February 2022 in ClinicalTrials.gov (NCT05246072).
The SOUL view of IRAS20126+4104. Kinematics and variability of the H$_2$ jet from a massive protostar
Creators: name: Massi, F.
name: Garatti, A. Caratti o
name: Cesaroni, R.
name: Sridharan, T. K.
name: Ghose, E.
name: Pinna, E.
name: Beltrán, M. T.
name: Leurini, S.
name: Moscadelli, L.
name: Sanna, A.
name: Agapito, G.
name: Briguglio, R.
name: Christou, J.
name: Esposito, S.
name: Mazzoni, T.
name: Miller, D.
name: Plantet, C.
name: Power, J.
name: Puglisi, A.
name: Rossi, F.
name: Rothberg, B.
name: Taylor, G.
name: Veillet, C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We exploit the increased sensitivity of the recently installed AO SOUL at the LBT to obtain new high-spatial-resolution NIR images of the massive young stellar object IRAS20126+4104 and its outflow. We aim to derive the jet proper motions and kinematics, as well as to study its photometric variability by combining the novel performances of SOUL together with previous NIR images. We used both broad-band ($K_{s}$, $K'$) and narrow-band (Br$γ$, H2) observations from a number of NIR cameras (UKIRT/UFTI,SUBARU/CIAO,TNG/NICS,LBT/PISCES,and LBT/LUCI1) to derive maps of the continuum and the H$_2$ emission in the 2.12 $μ$m line. Three sets of images, obtained with AO systems (CIAO,2003; FLAO,2012; SOUL,2020), allowed us to derive the proper motions of a large number of H$_2$ knots along the jet. Photometry from all images was used to study the jet variability. We derived knot proper motions in the range of 1.7-20.3 mas yr$^{-1}$ (i.e. 13-158 km s$^{-1}$ at 1.64 kpc, avg. outflow tangential velocity $\sim$ 80 km s$^{-1}$). The derived knot dynamical age spans a $\sim$ 200-4000 yr interval. A ring-like H$_2$ feature near the protostar location exhibits peculiar kinematics and may represent the outcome of a wide-angle wind impinging on the outflow cavity. Both H$_2$ geometry and velocities agree with those inferred from proper motions of the H$_2$O masers, located at a smaller distance from the protostar. Although the total H$_2$ line emission from the knots does not exhibit time variations at a $\widetilde{>}$ 0.3 mag level, we have found a clear continuum flux variation (radiation scattered by the dust in the cavity opened by the jet) which is anti-correlated between the blue-shifted and red-shifted lobes and may be periodic (with a period of $\sim$ 12-18 yr). We suggest that the continuum variability might be related to inner-disc oscillations which have also caused the jet precession.
description: 26 pages, 22 figures, 2 mpeg files, accepted by Astronomy & Astrophysics
title: Ανάλυση συμπεριφοράς εδαφικών πρανων και επιφανειών με τη χρήση της μεθόδου των πεπερασμένων στοιχείων (Μ.Π.Σ.)
Creators: name: Κατσέλης Ιωάννης
Publisher: name: Technical University of Crete
Year: 1993

description: Μη διαθέσιμο
Rudolf Henneböhl, Band 1, Ovid - Metamorphosen. Lehrerkommentar
Creators: name: Schmitz, Dietmar
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Rudolf Henneböhl, Band 1, Ovid - Metamorphosen. Lehrerkommentar (Latein Kreativ. Lateinische Lektürebände mit kreativer Ausrichtung, hrsg. Von R. Henneböhl). Bad Driburg: Ovid-Verlag (ISBN: 978-3-938952-04-7).
description: Forum Classicum, Nr. 1 (2008): Forum Classicum
Variation of small scale magnetic fields over a century using Ca-K images as proxy
Creators: name: Singh, Jagdev
name: Priyal, Muthu
name: Ravindra, B.
name: Bertello, Luca
name: Pevtsov, Alexei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A combined uniform and long-time series of Ca-K images from the Kodaikanal Observatory (KO), Mount Wilson Observatory (MWO), and Mauna Loa Solar Observatory (MLSO) were used to identify and study the Ca-K small-scale features and their solar cycle variations over a century. The small scale features are classified into three distinct categories: enhanced network (EN), active network (AN), and quiet network (QN). All these features show that their areas vary according to the 11-year solar cycle. The relative amplitude of the Ca-K network variations agree with that of the sunspot cycle. The total area of these small-scale features varies from about 5% during the minimum phase of the solar cycle to about 20% during its maximum phase. Considering the average intensity and the amplitude of their area variations, we find that the total contribution of EN, AN and QN to the irradiance variation of the Sun is about 3%.
description: Submitted article in RAA. It is under review. 15 pages, 8 figures
Excitation spectrum and momentum distribution of the ionic Bose-Hubbard model
Creators: name: Nishizawa, Hiroki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the excitation spectrum and momentum distribution of the ionic Bose-Hubbard model by the standard basis operator method. We derive Green's functions in the random phase approximation in Mott insulator, superfluid, charge density wave, and supersolid phases. The excitation spectrum has gapped modes and gapless Goldstone modes in the superfluid and supersolid phases. We show that the momentum distribution has a peak at the zone corner in the supersolid phase and the charge density wave phase close to the phase boundary. In addition, we demonstrate that the momentum distribution can be explained by the excitation spectrum and spectral weights of hole excitation modes.
description: 14 pages, 3 figures
Adapting to climate variability and change: the Climate Outlook Forum process
Creators: name: Ogallo, Laban
name: Bessemoulin, Pierre
name: Ceron, Jean-Pierre
name: Mason, Simon J.
name: Connor, Stephen J.
Publisher: name: Columbia University
Year: 2008
Subjects: Long-range weather forecasting
Climatic changes
Emergency management--Planning
Sustainable development
Regional planning

description: An overview of Regional Climate Outlook Forums.
Effect of dexmedetomidine vs midazolam on the microcirculation of septic patients who are mechanically ventilated
Creators: name: Refaat, Mostafa Mohamed Atef
name: Elkafrawy, Laila Ali
name: Elkabarity, Reem Hamdy
name: Hafez, Amr Fouad
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Sepsis has been associated with microvascular alterations. Studies have shown dexmedetomidine to have a beneficial effect on the microcirculation in patients with sepsis. In search for better sedation modality, we compared between dexmedetomidine and midazolam in terms of tissue perfusion in patients suffering from sepsis. A total of 128 patients with sepsis requiring sedation and mechanical ventilation were randomized into 2 groups. Each group comprised 64 patients: Group A (sedated by dexmedetomidine) and Group B (sedated by midazolam); assessment of microcirculation during sedation infusion was performed directly through the peripheral perfusion index (PPI) and indirectly by using global markers of perfusion (ScvO2, P(v-a)Co2). Sixty-four patients were analyzed in each group. Base line characteristics were similar in both groups. We found no significant differences (p > 0.05) between microcirculatory parameters, PPI, Scvo2, and P(v-a)CO2 when comparing between both sedated groups. The 28-day mortality rate was significantly lower (p = 0.042) in dexmedetomidine patients (26.6%) as compared to midazolam patients (43.8%). In addition, there was no difference in ICU stay between the two groups (p = 0.061). Using dexmedetomidine as a sedation option did not provide better peripheral perfusion in patients with sepsis.
title: Επίδραση στο περιβάλλον από την εξόρυξη του λιγνίτη-αποκατάσταση και προστασία του περιβάλλοντος στα λιγνιτωρυχεία της Πτολεμαίδας
Creators: name: Χατζηθανάσογλου Άννα
Publisher: name: Technical University of Crete
Year: 1993

description: Μη διαθέσιμο
Equivalent Notions of Normal Quantum Subgroups, Compact Quantum Groups with Properties F and FD, and Other Applications
Creators: name: Wang, Shuzhou
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: The notion of normal quantum subgroup introduced in algebraic context by Parshall and Wang when applied to compact quantum groups is shown to be equivalent to the notion of normal quantum subgroup introduced by the author. As applications, a quantum analog of the third fundamental isomorphism theorem for groups is obtained, which is used along with the equivalence theorem to obtain results on structure of quantum groups with property F and quantum groups with property FD. Other results on normal quantum subgroups for tensor products, free products and crossed products are also proved.
description: 28 pages. Improved version incorporating referee's suggestions and corrections. To appear in Journal of Algebra
Predictions of super-exotic heavy mesons from $K^{*}B^{*}B^{*}$ interactions
Creators: name: Bayar, M.
name: Ikeno, N.
name: Roca, L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We make a theoretical study of the three-body system composed of ${\bar K^*}{\bar B^*}{\bar B^*}$ to look for possible bound states, which could be associated to mesonic resonances of very exotic nature, containing open strange and double-bottom flavours. The three-body interaction is evaluated by using the fixed center approach to the Faddeev equations where the ${\bar B^*}{\bar B^*}$ is bound forming an $I(J^P)=0(1^+)$ state, as it was found in previous works, and the third particle, the ${\bar B^*}$, of much smaller mass, interacts with the components of the cluster. We obtain bound states for all the channels considered: spin $J=0$, 1 and 2, all of them with isospin $I=1/2$ and negative parity.
description: 9 pages, 5 figures
Charge transport properties in a novel holographic quantum phase transition model
Creators: name: Fu, Guoyang
name: Gong, Huajie
name: Liu, Peng
name: Kuang, Xiao-Mei
name: Wu, Jian-Pin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the features of charge transport in a novel holographic quantum phase transition (QPT) model with two metallic phases: normal metallic and novel metallic. The scaling behaviors of direct current (DC) resistivity and thermal conductivity at low temperatures in both metallic phases are numerically computed. The numerical results and the analytical ones governed by the near horizon geometry agree perfectly. Then, the features of low-frequency alternating current (AC) electric conductivity are systematically investigated. A remarkable characteristic is that the normal metallic phase is a coherent system, whereas the novel metallic phase is an incoherent system with non-vanishing intrinsic conductivity. Especially, in the novel metallic phase, the incoherent behavior becomes stronger when the strength of the momentum dissipation enhances.
description: 19 pages, 8 figures
Hexapartite steering based on a four-wave-mixing process with a spatially structured pump
Creators: name: Liang, Yunyun
name: Yang, Rongguo
name: Zhang, Jing
name: Zhang, Tiancai
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Multipartite Einstein-Podolsky-Rosen (EPR) steering has been widely studied, for realizing safer quantum communication. The steering properties of six spatially separated beams from the four-wave-mixing process with a spatially structured pump are investigated. Behaviors of all (1+i)/(i+1)-mode (i=1,2,3) steerings are understandable, if the role of the corresponding relative interaction strengths are taken into account. Moreover, stronger collective multipartite steerings including five modes also can be obtained in our scheme, which has potential applications in ultra-secure multiuser quantum networks when the issue of trust is critical. By further discussing about all monogamy relations, it is noticed that the type-IV monogamy relations, which are naturally included in our model, are conditionally satisfied. Matrix representation is used to express the steerings for the first time, which is very useful to understand the monogomy relations intuitively. Different steering properties obtained in this compact phase-insensitive scheme have potential applications for different kinds of quantum communication tasks.
title: Multiple frequency medium access control protocols and applications
Creators: name: Αγαδακος Νικολαος
Publisher: name: Technical University of Crete
Year: 2012

description: In Wireless Sensor Networks (WSN's), nodes are scattered at dicult-to-
reach areas and any interaction with a node after its initial setup is usually
dicult. As such, applications designed for this kind of networks must be
low power and ad-hoc in nature, as the topology of such networks is usually
unknown. In this thesis we propose a new cross-layer communication proto-
col adhering to the concepts of low-power, low trac, ad-hoc WSN's. The
designed protocol utilizes multiple frequencies to address the link, medium
access control (MAC) and routing over an ad-hoc topology, while attempting
to function despite the common innate problems of such networks such as
partitioning or interference.
Understanding and predicting seasonal-to-interannual climate variability - the producer perspective
Creators: name: Stockdale, Timothy
name: Alves, Oscar
name: Boer, George
name: Déqué, Michel
name: Ding, Yihui
name: Kumar, Arun
name: Kumar, Krishna
name: Landman, Willem
name: Mason, Simon J.
name: Nobre, Paulo
name: Scaife, Adam
name: Tomoaki, Ose
name: Yun, Won-Tae
Publisher: name: Columbia University
Year: 2010
Subjects: Climatic changes
Climatic changes--Models
Climatic changes--Statistical methods
Long-range weather forecasting

description: Seasonal prediction is based on changes in the probability of weather statistics due to changes in slowly varying forcings such as sea surface temperature anomalies, most notably those associated with El Niňo–Southern Oscillation (ENSO). However, seasonal weather can be perturbed by many factors, and is very much influenced by internal variability of the atmosphere, so comprehensive models are needed to identify what can be predicted. The predictability and probabilistic nature of seasonal forecasts is explained with suitable examples. Current capabilities for seasonal prediction that have grown out of work done in the research community at both national and international levels are described. Dynamical seasonal prediction systems are operational or quasi-operational at a number of forecasting centres around the world. Requirements for seasonal prediction include initial conditions, particularly for the upper ocean but also other parts of the climate system; high quality models of the ocean-atmosphere-land system; and data for verification and calibration. The wider context of seasonal prediction and seamless forecasting is explained. Recommendations for the future of seasonal prediction and climate services are given.
Directional Dipole Dice Enabled by Anisotropic Chirality
Creators: name: Cheng, Yuqiong
name: Oyesina, Kayode Adedotun
name: Xue, Bo
name: Lei, Dangyuan
name: Wong, Alex M. H.
name: Wang, Shubo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Physics (physics.class-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Directional radiation and scattering play an essential role in light manipulation for various applications in integrated nanophotonics, antenna and metasurface designs, quantum optics, etc. The most elemental system with this property is the class of directional dipoles, including the circular dipole, Huygens dipole, and Janus dipole. A unified realization of all three dipole types and a mechanism to freely switch among them are previously unreported, yet highly desirable for developing compact and multifunctional directional sources. Here, we theoretically and experimentally demonstrate that the synergy of chirality and anisotropy can give rise to all three directional dipoles in one structure at the same frequency under linearly polarized plane wave excitations. This mechanism enables a simple helix particle to serve as a directional dipole dice (DDD), achieving selective manipulation of optical directionality via different "faces" of the particle. We employ three "faces" of the DDD to realize face-multiplexed routing of guided waves in three orthogonal directions with the directionality determined by spin, power flow, and reactive power, respectively. This construction of the complete directionality space can enable the unprecedented high-dimensional control of both near-field and far-field directionality with broad applications in photonic integrated circuits, quantum information processing, and subwavelength-resolution imaging.
description: 17 pages, 16 figures
Using seasonal climate forecasts to guide disaster management: the Red Cross experience during the 2008 West Africa floods
Creators: name: Tall, Arame
name: Mason, Simon J.
name: Van Aalst, Maarten K.
name: Suarez, Pablo
name: Ait-Chellouche, Youcef
name: Diallo, Adama
name: Braman, Lisette
Publisher: name: Columbia University
Year: 2012
Subjects: Long-range weather forecasting
Climatic changes
Emergency management--Planning
Emergency management--Decision making
Floods

description: In 2008, the seasonal forecast issued at the Seasonal Climate Outlook Forum for West Africa (PRESAO) announced a high risk of above-normal rainfall for the July–September rainy season. With probabilities for above-normal rainfall of 0.45, this forecast indicated noteworthy increases in the risk of heavy rainfall. When this information reached the International Federation of Red Cross and Red Crescent Societies (IFRC) West and Central Africa Office, it led to significant changes in the organization’s flood response operations. The IFRC regional office requested funds in advance of anticipated floods, prepositioned disaster relief items in strategic locations across West Africa to benefit up to 9,500 families, updated its flood contingency plans, and alerted vulnerable communities and decision-makers across the region. This forecast-based preparedness resulted in a decrease in the number of lives, property, and livelihoods lost to floods, compared to just one year prior in 2007 when similar floods claimed above 300 lives in the region. This article demonstrates how a science-based early warning informed decisions and saved lives by triggering action in anticipation of forecast events. It analyses what it took to move decision-makers to action, based on seasonal climate information, and to overcome traditional barriers to the uptake of seasonal climate information in the region, providing evidence that these barriers can be overcome. While some institutional, communication and technical barriers were addressed in 2008, many challenges remain. Scientists and humanitarians need to build more common ground.
Eberhard Jung (Hrsg.), Capitolinus und seine Freunde. Ein Beitrag des Saarpfalz-Gymnasiums Homburg zum Jubiläum „2000 Jahre Römerstadt Homburg“
Creators: name: Kipf, Stefan
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Eberhard Jung (Hrsg.), Capitolinus und seine Freunde. Ein Beitrag des Saarpfalz-Gymnasiums Homburg zum Jubiläum „2000 Jahre Römerstadt Homburg“, Bad Homburg 2000 (ISBN 3-924653-28-3).
description: Forum Classicum, Nr. 3 (2000): Forum Classicum
Mapping UHECRs deflections through the turbulent galactic magnetic field with the latest RM data
Creators: name: Pshirkov, M. S.
name: Tinyakov, P. G.
name: Urban, F. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the influence of the random part of the Galactic magnetic field on the propagation of ultra high-energy cosmic rays. Within very mild approximations about the properties of the electron density fluctuations in the Galaxy we are able to derive a clear and direct relation between the observed variance of rotation measures and the predicted cosmic ray deflections. Remarkably, this is obtained bypassing entirely the detailed knowledge of the magnetic properties of the turbulent plasma. Depending on the parameters of the electron density spectrum, we can either directly estimate the expected deflection, or constrain it from above. Thanks to the latest observational data on rotation measures, we build a direction-dependent map of such deflections. We find that over most of the sky the random deflections of 40 EeV protons do not exceed 1 to 2 degrees, and can be as large as 5 degrees close to the Galactic plane.
description: 7 pages, one figure, v2 matches published version
Engineered entropic forces allow ultrastrong dynamical backaction
Creators: name: Sawadsky, Andreas
name: Harrison, Raymond A.
name: Harris, Glen I.
name: Wasserman, Walter W.
name: Sfendla, Yasmine L.
name: Bowen, Warwick P.
name: Baker, Christopher G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: When confined within an optical cavity, light can exert strong radiation pressure forces. Combined with dynamical backaction, this enables important processes such as laser cooling, and applications ranging from precision sensors to quantum memories and interfaces. However, the magnitude of radiation pressure forces is constrained by the energy mismatch between photons and phonons. Here, we overcome this barrier using entropic forces arising from the absorption of light. We show that entropic forces can exceed the radiation pressure force by eight orders of magnitude, and demonstrate this using a superfluid helium third-sound resonator. We develop a framework to engineer the dynamical backaction from entropic forces, applying it to achieve phonon lasing with a threshold three orders of magnitude lower than previous work. Our results present a pathway to exploit entropic forces in quantum devices, and to study nonlinear fluid phenomena such as turbulence and solitons.
description: Main text is 10 pages, 5 figures. Supplements is 21 pages, 11 figures
Exploring the magnetic dipole moments of $T_{QQ \bar q \bar s}$ and $T_{QQ \bar s \bar s}$ states in the framework of QCD light-cone sum rules
Creators: name: Azizi, K.
name: Özdem, U.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Motivated by the recent observation of the tetraquark $ T_{cc}^{+}$, we investigate the magnetic dipole moments of the possible single and double strange partners, $T_{QQ \bar q \bar s}$ and $T_{QQ \bar s \bar s}$, with the spin-parity $ J^{P} = 1^{+}$ by means of the QCD light-cone sum rules. To this end, we model these states as diquark-antidiquark states with different organizations and interpolating currents. The results of magnetic dipole moments obtained using different diquark-antidiquark structures differ from each other, considerably. The magnetic dipole moment is the leading-order response of a bound system to a soft external magnetic field. Therefore, it provides an excellent platform for investigation of the inner structures of hadrons governed by the quark-gluon dynamics of QCD.
description: 17 Pages, 3 Figures and 2 Tables. To appear in JHEP
Localized Many-Particle Majorana Modes with Vanishing Time-Reversal Symmetry Breaking in Double Quantum Dots
Creators: name: Wright, Anthony R.
name: Veldhorst, Menno
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We introduce the concept of spinful many-particle Majorana modes with local odd operator products, thereby preserving their local statistics. We consider a superconductor-double-quantum-dot system where these modes can arise with negligible Zeeman splitting when Coulomb interactions are present. We find a reverse Mott-insulator transition, where the even- and odd-parity bands become degenerate. Above this transition, Majorana operators move the system between the odd-parity ground state, associated with elastic cotunneling, and the even-parity ground state, associated with crossed Andreev reflection. These Majorana modes are described in terms of one, three, and five operator products. Parity conservation results in a 4% periodic supercurrent in the even state and no supercurrent in the odd state.
description: 5 pages, 4 figures. Final published form
Cross-time scales interactions and rainfall extreme events in southeastern South America for the austral summer. Part II: predictive skill
Creators: name: Muñoz, Ángel G.
name: Goddard, Lisa M.
name: Mason, Simon J.
name: Robertson, Andrew W.
Publisher: name: Columbia University
Year: 2016
Subjects: Rain and rainfall
Rain and rainfall--Statistical methods
Climatic changes--Models
Climatic changes--Decision making
Long-range weather forecasting

description: Potential and real predictive skill of the frequency of extreme rainfall in southeastern South America for the December–February season are evaluated in this paper, finding evidence indicating that mechanisms of climate variability at one time scale contribute to the predictability at another scale; that is, taking into account the interference of different potential sources of predictability at different time scales increases the predictive skill. Part I of this study suggested that a set of daily atmospheric circulation regimes, or weather types, was sensitive to these cross–time scale interferences, conducive to the occurrence of extreme rainfall events in the region, and could be used as a potential predictor. At seasonal scale, a combination of those weather types indeed tends to outperform all the other candidate predictors explored (i.e., sea surface temperature patterns, phases of the Madden–Julian oscillation, and combinations of both). Spatially averaged Kendall’s t improvements of 43% for the potential predictability and 23% for real-time predictions are attained with respect to standard models considering sea surface temperature fields alone. A new subseasonal-to-seasonal predictive methodology for extreme rainfall events is proposed based on probability forecasts of seasonal sequences of these weather types. The cross-validated real-time skill of the new probabilistic approach, as measured by the hit score and the Heidke skill score, is on the order of twice that associated with climatological values. The approach is designed to offer useful subseasonal-to-seasonal climate information to decision-makers interested not only in how many extreme events will happen in the season but also in how, when, and where those events will probably occur.
Volker Riedel: Antikerezeption in der deutschen Literatur vom Renaissance-Humanismus bis zur Gegenwart
Creators: name: Lobe, Michael
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Volker Riedel: Antikerezeption in der deutschen Literatur vom Renaissance-Humanismus bis zur Gegenwart. Stuttgart (Metzler) 2000, 515 S. (ISBN 3-476-01686-2).
description: Forum Classicum, Nr. 2 (2002): Forum Classicum