cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Boundary Condition Independence of Non-Hermitian Hamiltonian Dynamics
Creators: name: Mao, Liang
name: Deng, Tianshu
name: Zhang, Pengfei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Non-Hermitian skin effect, namely that the eigenvalues and eigenstates of a non-Hermitian tight-binding Hamiltonian have significant differences under open or periodic boundary conditions, is a remarkable phenomenon of non-Hermitian systems. Inspired by the presence of the non-Hermitian skin effect, we study the evolution of wave-packets in non-Hermitian systems, which can be determined using the single-particle Green's function. Surprisingly, we find that in the thermodynamical limit, the Green's function does not depend on boundary conditions, despite the presence of skin effect. We proffer a general proof for this statement in arbitrary dimension with finite hopping range, with an explicit illustration in the non-Hermitian Su-Schrieffer-Heeger model. We also explore its applications in non-interacting open quantum systems described by the master equation, where we demonstrate that the evolution of the density matrix is independent of the boundary condition.
description: 5 pages, 3 figures
Screening of soil fungi in order to biosynthesize AgNPs and evaluation of antibacterial and antibiofilm activities
Creators: name: Mohammadi, Parisa
name: Seyede Soheila Mousavi
name: Parinaz Ghadam
Publisher: name: figshare
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: 110303 Clinical Microbiology
subject: FOS: Clinical medicine
subject: 60504 Microbial Ecology

description: The biosynthesis of nanoparticles (NPs) has recently attracted a lot of research attention due to its being an eco-friendly and economical method. NPs are formed under normal temperatures and pressures. The shape and size of NPs can be controlled by choosing a suitable pH and temperature. In this study, 24 strains of fungi isolated from desert soils were screened for AgNP synthesis. The MS17 isolated was chosen as the superior strain capable of rapidly synthesizing monodisperse AgNPs. The optimum conditions for AgNP synthesis were investigated. AgNPs were characterized by UV–visible spectrophotometry, dynamic light scattering, X-ray diffraction, transmission electron microscopy and Fourier-transform infrared. The NPs produced were found to be in the form of Ag/AgCl with a size range of 5–15 nm. Then, the NPs were capped by proteins and carbohydrates, which play an important role in NP stability. The NPs were capable of antimicrobial activities against the standard bacterial pathogens, Pseudomonas aeruginosa ATCC 27853, Escherichia coli ATCC 25922, Bacillus subtilis ATCC 6633, Staphylococcus aureus ATCC 1431 and the multidrug-resistant P. aeruginosa B52 and P. aeruginosa 48.
Imaging the Radio Photospheres of Mira Variables
Creators: name: Reid, M. J.
name: Menten, Karl M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used the VLA at 43 GHz to image the radio continuum emission from o Ceti, R Leo, and W Hya and to precisely locate their SiO maser emission with respect to the star. The radio continuum emission region for all three stars has a diameter close to 5.6 AU. These diameters are similar to those measured at infrared wavelengths in bands containing strong molecular opacity and about twice those measured in line-free regions of the infrared spectrum. Thus, the radio photosphere and the infrared molecular layer appear to be coextensive. The 43 GHz continuum emission is consistent with temperatures near 1600 K and opacity from H-minus free-free interactions. While the continuum image of o Ceti appears nearly circular, both R Leo and W Hya display significant elongations. The SiO masers for all three stars show partial rings with diameters close to 8 AU.
description: 14 pages; 3 figures
Measurement of the top quark mass using events with a single reconstructed top quark in pp collisions at $\sqrt{s}$ = 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A measurement of the top quark mass is performed using a data sample enriched with single top quark events produced in the $t$ channel. The study is based on proton-proton collision data, corresponding to an integrated luminosity of 35.9 fb$^{-1}$, recorded at $\sqrt{s}$ = 13 TeV by the CMS experiment at the LHC in 2016. Candidate events are selected by requiring an isolated high-momentum lepton (muon or electron) and exactly two jets, of which one is identified as originating from a bottom quark. Multivariate discriminants are designed to separate the signal from the background. Optimized thresholds are placed on the discriminant outputs to obtain an event sample with high signal purity. The top quark mass is found to be 172.13 $^{+0.76}_{-0.77}$ GeV, where the uncertainty includes both the statistical and systematic components, reaching sub-GeV precision for the first time in this event topology. The masses of the top quark and antiquark are also determined separately using the lepton charge in the final state, from which the mass ratio and difference are determined to be 0.9952 $^{+0.0079}_{-0.0104}$ and 0.83 $^{+1.79}_{-1.35}$ GeV, respectively. The results are consistent with $CPT$ invariance.
description: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-19-009 (CMS Public Pages)
Report from practical synthetic biology workshop for undergraduates
Creators: name: Bryk, Jaroslaw
Publisher: name: figshare
Year: 2014
Subjects: classificationCode: 300199
subject: Agricultural biotechnology not elsewhere classified

description: This is a report form a workshop for undergraduaes that we run to test and validate protocols for the development of synthetic biology teaching resources in the project UNIGEMS. It is meant as a document illustrating one of the ways one could run synthetic biology training in a higher education institution.For more details about the developed resources please go to https://doi.org/10.1099/acmi.0.000596.v3.
Single Top Quark Production with and without a Higgs Boson
Creators: name: Cao, Qing-Hong
name: Jiang, Hao-ran
name: Zeng, Guojin
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: One way to probe new physics beyond standard model is to check the correlation among higher dimension operators in effective field theory. We examine the strong correlation between the processes of $pp\rightarrow tHq$ and $pp\rightarrow tq$ which both depend on the same three operators. The correlation indicates that, according to the data of $pp\rightarrow tq$, $σ_{tHq}=\big[106.8 \pm 64.8\big]~{\rm fb}$ which is far below the current upper limit $σ_{tHq}\leq 900~{\rm fb}$.
Rotational velocities of the giants in symbiotic stars: III. Evidence of fast rotation in S-type symbiotics
Creators: name: Zamanov, R. K.
name: Bode, M. F.
name: Melo, C. H. F.
name: Stateva, I. K.
name: Bachev, R.
name: Gomboc, A.
name: Konstantinova-Antova, R.
name: Stoyanov, K. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have measured the projected rotational velocities (vsini) in a number of symbiotic stars and M giants using high resolution spectroscopic observations. On the basis of our measurements and data from the literature, we compare the rotation of mass-donors in symbiotics with vsini of field giants and find that: (1) the K giants in S-type symbiotics rotate at vsini>4.5 km/s, which is 2-4 times faster than the field K giants; (2) the M giants in S-type symbiotics rotate on average 1.5 times faster than the field M giants. Statistical tests show that these differences are highly significant: p-value < 0.001 in the spectral type bins K2III-K5III, M0III-M6III, and M2III-M5III; (3) our new observations of D'-type symbiotics also confirm that they are fast rotators. As a result of the rapid rotation, the cool giants in symbiotics should have 3-30 times larger mass loss rates. Our results suggest also that bipolar ejections in symbiotics seem to happen in objects where the mass donors rotate faster than the orbital period. All spectra used in our series of papers can be obtained upon request from the authors.
description: MNRAS (accepted), 7 pages, 5 figures
Time evolution of T_{μν} and the cosmological constant problem
Creators: name: Branchina, V.
name: Zappalà, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the cosmic time evolution of an effective quantum field theory energy-momentum tensor T_{μν} and show that, as a consequence of the effective nature of the theory, the structure of T_{μν} is such that the vacuum energy decreases with time. We find that the zero point energy at present time is washed out by the cosmological evolution. The implications of this finding for the cosmological constant problem are investigated.
description: 11 Pages, revised version
Fern von Geschichte und verheißungsvollen Tagen. Neoklassizistische Cyberlyrik im ChinaNetz und die Schreibweise des Lizilizilizi (2000-2020) by Frank Kraushaar
Creators: name: Landa, Sara
Publisher: name: The Journal of the European Association for Chinese Studies
Year: 2023

description: Fern von Geschichte und verheißungsvollen Tagen. Neoklassizistische Cyberlyrik im ChinaNetz und die Schreibweise des Lizilizilizi (2000–2020)


Frank Kraushaar


Bochum/Freiburg: projektverlag, 2022. 355 pp.
ISBN: 9783897335608
description: The Journal of the European Association for Chinese Studies, Vol. 4 (2023): Culture and Memory
Market Value of Differentially-Private Smart Meter Data
Creators: name: Chhachhi, Saurab
name: Teng, Fei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Cryptography and Security (cs.CR)
subject: Systems and Control (eess.SY)
subject: Mathematical Finance (q-fin.MF)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Economics and business

description: This paper proposes a framework to investigate the value of sharing privacy-protected smart meter data between domestic consumers and load serving entities. The framework consists of a discounted differential privacy model to ensure individuals cannot be identified from aggregated data, a ANN-based short-term load forecasting to quantify the impact of data availability and privacy protection on the forecasting error and an optimal procurement problem in day-ahead and balancing markets to assess the market value of the privacy-utility trade-off. The framework demonstrates that when the load profile of a consumer group differs from the system average, which is quantified using the Kullback-Leibler divergence, there is significant value in sharing smart meter data while retaining individual consumer privacy.
description: 5 pages, 4 figures, submitted to the 2021 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference (ISGT NA)
NET4Age-Friendly Sustainability Strategy
Creators: name: Dantas, Carina
Publisher: name: Zenodo
Year: 2024

description: This report describes the activities that led to the exploitable results, the Key Exploitable Result analysis and roadmap, and the future activities of the SHAFE Foundation.Therefore, the sustainability and use of the COST Action 19136 NET4Age-Friendly results focus on the exploitation of the identified Key Exploitable Result: SHAFE – NET4Age Full Package. The SHAFE Foundation, supported by SHINE 2Europe and AFEdemy, will exploit this Key Exploitable Result. The participating organisations in the COST Action NET4Age-Friendly are invited to join the exploitation efforts.
Spectropolarimetry of R Coronae Borealis in 1998--2003: Discovery of Transient Polarization at Maximum Brightness
Creators: name: Kawabata, K. S.
name: Ikeda, Y.
name: Akitaya, H.
name: Isogai, M.
name: Matsuda, K.
name: Matsumura, M.
name: Nagae, O.
name: Seki, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an extended optical spectropolarimetry of R CrB from 1998 January to 2003 September. The polarization was almost constant in the phase of maximum brightness, being consistent with past observations. We detected, however, temporal changes of polarization ($\sim 0.5$ %) in 2001 March and August, which were the first detection of large polarization variability in R CrB near maximum brightness. The amplitude and the position angle of the `transient polarization' were almost constant with wavelength in both two events. There was a difference by about 20 degrees in the position angle between the two events. Each event could be explained by light scattering due to short-lived dust puff occasionally ejected off the line of sight. The flatness of the polarization against the wavelength suggests that the scatterer is a mixture of dust grains having various sizes. The rapid growth and fading of the transient polarization favors the phenomenological model of dust formation near the stellar photosphere (e.g., within two stellar radii) proposed for the time evolution of brightness and chromospheric emission lines during deeply declining periods, although the fading timescale can hardly be explained by a simple dispersal of expanding dust puff with a velocity of $\sim 200-350$ km s $^{-1}$. Higher expansion velocity or some mechanism to destroy the dust grains should be needed.
description: 22 pages, 10 figures, accepted for publication in AJ
การศึกษาสภาพการใช้เทคโนโลยีสารสนเทศในการเรียน การสอนระดับอนุบาล ในโรงเรียนสังกัดกรุงเทพมหานคร
Creators: name: สายสุดา ปั้นตระกูล
name: กาญจนา เผือกคง
name: ปริศนา มัชฌิมา
Publisher: name: สมาคมนักวิจัย
Year: 2557
Subjects: สภาพการใช้เทคโนโลยีสารสนเทศ,การศึกษาปฐมวัย,การเรียนการสอนระดับอนุบาล

description: 2, 19, วารสารสมาคมนักวิจัย
Fluid mechanics of high velocity fluidised beds
Creators: name: Brereton, Clive
Publisher: name: University of British Columbia
Year: 2010

description: This thesis project studied a number of aspects relating to the fluid, mechanics of circulating fluidised beds. Studies of the macrostructure of a 9.3 m high x .15 m dia. riser showed a strong dependence of one important macroscopic descriptor, the density profile, upon the geometry of the gas/solids exit and the location of the solids return. It was found that abrupt exits promoted inertial solids separation from the conveying gas which generated strong internal circulation patterns and high slip velocities. Microstructural studies, in support of the macrostructural investigation, and using a needle capacitance probe, showed how the radial density profile develops with height causing a gradual density decay. The structure, characterised by an "intermittency index," was strongly radially non-uniform at all locations in the lower regions of the column with pronounced aggregation or clustering at the highest densities. However, the cluster-like structures present at the base rapidly gave way to a more dilute core-annular type flow slightly further up the column. This radially non-uniform structure was used to explain a number of macroscopic phenomena. These included the effects of exit type, solids return location, secondary air addition and gas mixing. The results of the various studies, drawn together, allow fast fluidisation to be defined tentatively with respect to its relationships to choking, pneumatic transport, and other fluidisation regimes. Separate studies were performed to examine gas mixing and the transition to turbulent fluidisation. The gas residence time distribution was found to be substantially different from plug flow and could be characterised crudely by a two-zone model. The turbulent transition was found to be gradual, but nonetheless a transition, although a developed turbulent zone did not exist until well beyond transport conditions.
The anticenter old open cluster NGC 1883: radial velocity and metallicity
Creators: name: Villanova, Sandro
name: Baume, Gustavo
name: Carraro, Giovanni
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Having already reported on the first photometric study of the intermediate-age open cluster NGC 1883 (Carraro et al. 2003), we present in this paper the first spectroscopic multi-epoch investigation of a sample of evolved stars in the same cluster. The aim is to derive the cluster membership, velocity and metallicity, and discuss recent claims in the literature (Tadross 2005) that NGC 1883 is as metal poor as globular clusters in the Halo. Besides, being one of the few outer Galactic disk intermediate-age open clusters known so far, it is an ideal target to improve our knowledge of the Galactic disk radial abundance gradient, that is a basic ingredient for any chemical evolution model of the Milky Way. The new data we obtained allow us to put NGC 1883's basic parameters more reliable. We find that the cluster has a mean metallicity of [Fe/H] = -0.20$\pm$0.22, from which we infer an age (650$^{+70}_{-70}$ Myr) close to the Hyades one and a Galactocentric distance of 12.3$^{+0.4}_{-0.2}$ kpc. The metal abundance, kinematics, and position make NGC 1883 a genuine outer disk intermediate-age open cluster. We confirm that in the outer Galactic disk the abundance gradient is shallower than in the solar vicinity.
description: 8 pages, 7 eps figures (some degraded in resolution), accepted for publication in MNRAS
Scaling test of two-flavor O(a)-improved lattice QCD
Creators: name: Della Morte, Michele
name: Fritzsch, Patrick
name: Meyer, Harvey B.
name: Simma, Hubert
name: Sommer, Rainer
name: Takeda, Shinji
name: Witzel, Oliver
name: Wolff, Ulli
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We report on a scaling test of several mesonic observables in the non-perturbatively O(a) improved Wilson theory with two flavors of dynamical quarks. The observables are constructed in a fixed volume of 2.4fm x (1.8fm)^3 with Schroedinger functional boundary conditions. No significant scaling violations are found. Using the kaon mass determined in \cite{cernI}, we update our estimate of the Lambda parameter to Lambda^(2)_{msbar}/m_K = 0.52(6).
description: 12 pages, 5 tables, 3 figures; one equation corrected; last line and caption of table 4 revised
Essays on creditless recoveries
Creators: name: Frigerio, Marco
Publisher: name: IMT Alti Studi Lucca
Year: 2014
Subjects: HB Economic Theory

description: A large body of the literature on finance and economic growth has been devoted to the impact of financial shocks and
credit market imperfections on the real economy. On the one hand, financial frictions facilitate the propagation of business cycles, amplifying the effect of
shocks that originate in the real economy. On the other hand, exogenous financial shocks may be also the primitive trigger of wide fluctuations in relevant real
variables. Whatever the channel, access to bank credit constitutes for sure an essential source through which finance supports a sustainable growth. Accordingly,
we should expect that national GDP and bank credit to the private sector move always in the same direction, even in cases of short term fluctuations of the
business cycle. However, empirical evidence shows that this is not always true. Many cases exist in which recessions were followed by a recovery in national
GDP without a corresponding recovery in domestic and external credit to the private sector. These episodes have been treated in the literature under the name
of creditless recoveries. The dissertation takes both a theoretical and an empirical approach to investigate the determinants and consequences of these puzzling phenomena.
Learning to change: the organizational learning dimension of UN reform
Creators: name: Kolukirik, Mine
Publisher: name: IMT Alti Studi Lucca
Year: 2014
Subjects: JA Political science (General)

description: The thesis has analysed the role of organizational learning in institu-tional change by focusing on the United Nations
institutional change initiative titled Delivering as One. The scope of the research takes into account that thus far extremely limited attention has been paid
to or-ganizational learning for change in the context of the UN country level reforms. This aspect is studied using the UN’s Delivering as One as case study.
In doing so, I have taken into account that organizational learning and organizational change at the country level are the out-comes of multiple complex dynamics
at play, especially in intergov-ernmental institutions: a) extent of collegiality and cohesiveness at the UN country team level; b) the influence on participating
agencies exer-cised by their respective headquarters; and c) the influence on the UN agencies funds and programmes generated by system-wide changes.
This thesis a product of intensive desk research supplemented by field visits to four case study countries where I have interacted with con-cerned UN officials
in a structured way and gathered material evidence around learning and change as well used theoretical models to appre-ciate and explain the role of
organizational learning in international bu-reaucracies in particular United Nations. Based on the salient findings of the study, I have formulated a few
recommendations and also out-lined the areas for further inquiry.
Accuracy of liver stiffness measurement using fibroscan ® to predict the response to antiviral therapy in patients with chronic hepatitis c viral infection
Creators: name: Gamal Mohamed Abdelall, Nesrine <1978>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: MED/09 Medicina interna

description: Introduction: Antiviral therapy can prevent disease progression in patients with chronic hepatitis C . Transient Elastografy (TE; Fibroscan) is an accurate surrogate marker to liver fibrosis, by measuring liver stiffness (LS). LS decrease has been associated with sustained virologic response (SVR). Aim: to assess the changes of LS measurments in CHC patients during and one year after Interferon (IFN)-based antiviral therapy (IFN/ribavirin) or (telaprevir+IFN/ribavirin). Methods: consecutive 69 CHC patients (53.6% females, mean age 57.9 ± 11.4) who underwent antiviral therapy for at least 20 weeks were enrolled. LS was measured using FibroScan at baseline, after three months, at the end of treatment and one year after treatment discontinuation. Fibrosis was graded using METAVIR score. 
 Results: twenty patients treated with triple therapy and 49 with IFN/ribavirin. Fifty patients had SVR and 19 were non-responders. SVR patients: F0-F1, F2 and F3 patients (39.1%, 7.2% and 17.4%; respectively) showed no significant LS decrease (P= 0.186, 0.068 and 0.075; respectively). Conversely, in F4 patients (36.2%) LS was significantly decreased (P=0.015) after one year of treatment completion. In all patients with no SVR, no significant decrease in LS was observed. Interestingly, all Patients with F4 fibrosis (even non-responders) showed an initial significant decrease in LS (P=0.024) at 3 months after the start of treatment. However, this decrease was not predictive of SVR; area under the ROC curve 0.369 (CI %: 0.145-0.592) P= 0.265.
Conclusion: Our study showed that initial decrease in LSM, especially in patients with higher baseline fibrosis score is unlikely to predict an SVR. In addition no significant association was found between clinical or virological parameters and fibrosis improvement. Further studies are needed to delineate the most appropriate clinical scenarios for the LSM by Fibroscan in chronic hepatitis C and its role in monitoring the response to antiviral treatment.
A confined dynamo: magnetic activity of the K-dwarf component in the pre-cataclysmic binary system V471 Tauri
Creators: name: Kővári, Zs.
name: Kriskovics, L.
name: Oláh, K.
name: Odert, P.
name: Leitzinger, M.
name: Seli, B.
name: Vida, K.
name: Borkovits, T.
name: Carroll, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We scrutinize the red dwarf component in the eclipsing binary system V471 Tau in order to unravel relations between different activity layers from the stellar surface through the chromosphere up to the corona. We aim at studying how the magnetic dynamo in the late-type component is affected by the close white dwarf companion. We use space photometry, high resolution spectroscopy and X-ray observations from different space instruments to explore the main characteristics of magnetic activity. From K2 photomery we find that 5-10 per cent of the apparent surface of the red dwarf is covered by cool starspots. From seasonal photometric period changes we estimate a weak differential rotation. From the flare activity we derive a cumulative flare frequency diagram which suggests that frequent flaring could have a significant role in heating the corona. Using high resolution spectroscopy we reconstruct four Doppler images for different epochs which reveal an active longitude, that is, a permanent dominant spot facing the white dwarf. From short term changes in the consecutive Doppler images we derive a weak solar-type surface differential rotation with 0.0026 shear coefficient, similar to that provided by photometry. The long-term evolution of X-ray luminosity reveals a possible activity cycle length of 12.7 ys, traces of which were discovered also in the H$α$ spectra. We conclude that the magnetic activity of the red dwarf component in V471 Tau is strongly influenced by the close white dwarf companion. We confirm the presence of a permanent dominant spot (active longitude) on the red dwarf facing the white dwarf. The weak differential rotation of the red dwarf is very likely the result of tidal confinement by the companion. We find that the periodic appearance of the inter-binary H$α$ emission from the vicinity of the inner Lagrangian point is correlated with the activity cycle.
description: 21 pages, 18 figures, 5 tables, submitted to Astronomy and Astrophysics
Nonequilibrium Green's function method for phonon-phonon interaction and ballistic-diffusive thermal transport
Creators: name: Xu, Yong
name: Wang, Jian-Sheng
name: Duan, Wenhui
name: Gu, Bing-Lin
name: Li, Baowen
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Phonon-phonon interaction is systematically studied by nonequilibrium Green's function (NEGF) formulism in momentum space at finite temperatures. Within the quasi-particle approximation, phonon frequency shift and lifetime are obtained from the retarded self-energy. The lowest order NEGF provides the same phonon lifetime as Fermi's golden rule. Thermal conductance is predicted by the Landauer formula with a phenomenological transmission function. The main advantage of our method is that it covers both ballistic and diffusive limits and thermal conductance of different system sizes can be easily obtained once the mode-dependent phonon mean free path is calculated by NEGF. As an illustration, the method is applied to two one-dimensional atom chain models (the FPU-βmodel and the ϕ^4 model) with an additional harmonic on-site potential. The obtained thermal conductance is compared with that from a quasi-classical molecular dynamics method. The harmonic on-site potential is shown to remove the divergence of thermal conductivity in the FPU-βmodel.
description: 9 pages, 5 figures
The Landscape of Historical Memory. The Politics of Museums and Memorial Culture in Post-Martial Law Taiwan by Kirk A. Denton
Creators: name: Schweiger, Irmy
Publisher: name: The Journal of the European Association for Chinese Studies
Year: 2023

description: The Landscape of Historical Memory. The Politics of Museums and Memorial Culture in Post-Martial Law Taiwan


Kirk A. Denton


Hong Kong: Hong Kong University Press, 2021. 272 pp.


ISBN: 9789888528578 (Hardback)
description: The Journal of the European Association for Chinese Studies, Vol. 4 (2023): Culture and Memory
Biclustering of gene expression data: hybridization of GRASP with other heuristic/metaheuristic approaches
Creators: name: Musacchia, Francesco
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Researchers who work on large amount of data have to face vari- ous problems such as data mining and information retrieval: this is the case of gene expression. The general scope of these experiments is to find co-regulated genes, in order to understand the biologic pathways underlying a particular phenomenon. A clustering con- cept can be used to find out if co-regulated genes can be active only over some conditions. Recently, some biclustering approaches have been used to find groups of co-regulated genes into a data matrix. Among them, several heuristic algorithms have been developed to find good solutions in a reasonable running time.
In the current Ph.D. thesis, a GRASP-like (Greedy Randomized Adaptive Search Procedure) approach was developed to perform biclustering of microarray data. A new local search has been devel- oped composed of three simple steps based on a concept inspired by the social aggregation of groups. It is very fast and allows to ob- tain results similar to those achieved using some of the best known biclustering algorithms. Other new algorithms have also been pro- posed using novel combinations of iterated local search and MST clustering.
The different biclustering algorithms were then tested on four different datasets of gene expression data. Results are encouraging because they are similar or even better to those obtained with the
former GRASP-like algorithm. Possible future improvements could be obtained by implementing further combinations of heuristics and testing them onto different datasets in order to evaluate their general application to different kinds of data.
L’empire terrestre. Histoire du politique en Chine aux XXe et XXIe siècles by Yves Chevrier
Creators: name: Schweisguth, Soline
Publisher: name: The Journal of the European Association for Chinese Studies
Year: 2023

description: In this two-volume opus, Yves Chevrier, who was director of “Centre Chine” at EHESS and is now professor emeritus at CESPRA (Centre d’études sociologiques et politiques Raymond Aron), seeks to shed a new light on the history of politics in twentieth China. This essay aims at understanding modern China as a “terrestrial empire” conceived as a “specific non-democratic political form, different from the late empire […] and from Mao’s totalitarianism” (29).  In the first volume, which runs from 1895 to 1976, he defines three moments in the process of construction of politics revolving around two axes: democracy and the state. The first part starts in 1895 when the political form of a world-Empire went into crisis and, according to Chevrier, started to be conceived as political. This revolution in the conception of politics ended up in the institutionalisation of democracy. The second part focuses on the period between 1915 and 1925 when, according to Yves Chevrier, a new kind of politics emerged, that of autonomous action led by activist subjects. Modern politics which was reinvented through the paradigm of the subject and a new form of democracy emerged: activist democracy. Finally, from 1926 to 1976, the originality of Maoism is found in the decentralised activist struggle unleashed in order to achieve hegemony. In this conception, Mao Zedong appears as the “Divider” creating a fragmented system of activism, breaking any monopoly by universalising action.


法國學者伊夫 · 謝弗裡耶，曾任法國高等社會科學學院現代中國研究中心主任，現為雷蒙∙阿隆社會學與政治學研究中心名譽教授。在他關於二十世紀中國政治史的兩卷著作中，為讀者展現了一個獨特視角：相較於晚期帝制和毛澤東時代，現代中國更像一個以特殊非民主方式運作的“疆域大國”。该著作的第一卷覆盖1895-1976年时段，以民主与国家为核心，分析了三个主要的政治构建时期：1895年起，世界帝國政治形態的危機導致對政治的重新定義，推動了民主的制度化；在接下來的1915至1925年，新的政治理念強調主體的積極性，催生了“積極民主”；最後在1926至1976年，毛澤東以其“分裂者”的策略，通過廣泛的群眾鬥爭來消解傳統權威，進而穩固其政治地位。
description: The Journal of the European Association for Chinese Studies, Vol. 4 (2023): Culture and Memory
Thermal Signals from Collective Electronic Excitations in Inhomogeneous Warm Dense Matter
Creators: name: Moldabekov, Zh. A.
name: Dornheim, T.
name: Cangi, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We predict the emergence of novel collective electronic excitations in warm dense matter with an inhomogeneous electronic structure based on first-principles calculations. The emerging modes are controlled by the imposed perturbation amplitude. They include satellite signals around the standard plasmon feature, transformation of plasmons to optical modes, and double-plasmon modes. Most importantly, these modes exhibit a pronounced dependence on the temperature. This makes them potentially invaluable for the diagnostics of plasma parameters in the warm dense matter regime. We demonstrate that these modes can be probed with present experimental techniques.
Sinophone Utopias: Exploring Futures Beyond the China Dream edited by Andrea Riemenschnitter, Jessica Imbach, and Justyna Jaguscik
Creators: name: Spakowski, Nicola
Publisher: name: The Journal of the European Association for Chinese Studies
Year: 2023

description: Sinophone Utopias: Exploring Futures Beyond the China Dream

Andrea Riemenschnitter, Jessica Imbach, and Justyna Jaguscik, eds.

Amherst, New York: Cambria Press, 2023. 484 pp.
ISBN: 9781621966463
description: The Journal of the European Association for Chinese Studies, Vol. 4 (2023): Culture and Memory
The Bar Pattern Speed of NGC 1433 Estimated Via Sticky-Particle Simulations
Creators: name: Treuthardt, P.
name: Salo, H.
name: Rautiainen, P.
name: Buta, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present detailed numerical simulations of NGC 1433, an intermediate-type barred spiral showing strong morphological features including a secondary bar, nuclear ring, inner ring, outer pseudoring, and two striking, detached spiral arcs known as ``plumes.'' This galaxy is an ideal candidate for recreating the observed morphology through dynamical models and determining the pattern speed. We derived a gravitational potential from an $H$-band image of the galaxy and simulated the behavior of a two-dimensional disk of 100,000 inelastically colliding gas particles. We find that the closest matching morphology between a $B$-band image and a simulation occurs with a pattern speed of 0.89 km s$^{-1}$ arcsec$^{-1}$ $\pm$ 5-10%. We also determine that the ratio of corotation radius to the average published bar radius is 1.7 $\pm$ 0.3, with the ambiguity in the bar radius being the largest contributor to the error.
description: Accepted for publication by The Astronomical Journal. 34 pages, 13 figures, 2 tables
Absolute Dimensions and Apsidal Motion of the Eccentric Binary V731 Cephei
Creators: name: Bakis, V.
name: Zejda, M.
name: Bulut, I.
name: Wolf, M.
name: Bilir, S.
name: Bakis, H.
name: Demircan, O.
name: Lee, J. W.
name: Slechta, M.
name: Kucerova, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A detailed analysis of new and existing photometric, spectroscopic and spatial distribution data of the eccentric binary V731 Cep was performed. Spectroscopic orbital elements of the system were obtained by means of cross-correlation technique. According to the solution of radial velocities with UBVRcIc light curves, V731 Cep consists of two main-sequence stars with masses M$_{1}$=2.577 (0.098) M$_{\odot}$, M$_{2}$=2.017 (0.084) M$_{\odot}$, radii R$_{1}$=1.823 (0.030) R$_{\odot}$, R$_{2}$=1.717 (0.025) R$_{\odot}$, and temperatures T$_{eff1}$=10700 (200) K, T$_{eff2}$=9265 (220) K separated from each other by a=23.27 (0.29) R$_{\odot}$ in an orbit with inclination of 88$^{\circ}$.70 (0.03). Analysis of the O--C residuals yielded a rather long apsidal motion period of U=10000(2500) yr compared to the observational history of the system. The relativistic contribution to the observed rates of apsidal motion for V731 Cep is significant (76%). The combination of the absolute dimensions and the apsidal motion properties of the system yielded consistent observed internal structure parameter (log$\bar{k}_{2,obs}$=-2.36) compared to the theory (log$\bar{k}_{2,theo}$=-2.32). Evolutionary investigation of the binary by two methods (Bayesian and evolutionary tracks) shows that the system is t=133(26) Myr old and has a metallicity of [M/H]=-0.04(0.02) dex. The similarities in the spatial distribution and evolutionary properties of V731 Cep with the nearby ($ρ\sim3^{\circ}$.9) open cluster NGC 7762 suggests that V731 Cep could have been evaporated from NGC 7762.
description: 10 pages, including 8 figures and 8 tables, accepted for publication in MNRAS
How oncogenic mutations activate human MAP kinase 1 (MEK1): a molecular dynamics simulation study
Creators: name: Liu, Ye
name: Zhu, Jingxuan
name: Guo, Xiaoqing
name: Huang, Tianci
name: Han, Jiarui
name: Gao, Jianjiong
name: Xu, Dong
name: Han, Weiwei
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer
subject: Hematology

description: Approximately 30% of all types of human cancers possess a constitutively activated the mitogen-activated protein kinase (MAPK) signaling pathway while MAP kinase 1 (MEK1) is a critical component of this pathway. It has been reported mutations could improve the activity of MEK1 to result in cell proliferation and transformation, which is a known oncogenic event in various cancer types. In this study, eight molecular dynamics simulations, molecular mechanics Poisson–Boltzmann surface area (MM-PBSA), combined with protein structure network were performed to explore the mechanism that mutations activate MEK1. Protein structure networks and hydrogen bonds analysis demonstrated that active mutations broke the interaction between activation segments (residues 216–222) and C-helix (residues 105–121) in MEK1, leading to it transform inactive form to active form. Moreover, hydrogen bond analysis and MM-PBSA calculation indicated that activating mutations decrease the binding affinity between MEK1 and inhibitor to reduce the inhibitory effect of inhibitors. In addition, some active mutations cause structural changes in the Pro-rich loop (residues 261–268) of MEK1. These changes may stabilize the interaction between the MEK1 mutants and the ligands by increasing the number of exposed hydrophobic residues in the active site of MEK1. Our results may provide useful theoretical evidences for the mechanism underlying the role of human MEK1 in human cancers. Communicated by Ramaswamy H. Sarma
On randomized stopping
Creators: name: Gyongy, Istvan
name: Siska, David
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: A general result on the method of randomized stopping is proved. It is applied to optimal stopping of controlled diffusion processes with unbounded coefficients to reduce it to an optimal control problem without stopping. This is motivated by recent results of Krylov on numerical solutions to the Bellman equation.
description: Published in at http://dx.doi.org/10.3150/07-BEJ108 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Studies on DEA and MDEA degradation
Creators: name: Chakma, Amitabha
Publisher: name: University of British Columbia
Year: 2010

description: Aqueous diethanolamine ("DEA") is widely used for the removal of acid gases such as C0₂ and H₂S while aqueous methyl diethanoamine("MDEA") is primarily used for the selective removal of H₂S in the presence of C0₂ from light hydrocarbon gases. In addition to normal absorption and desorption reactions, some side reactions occur between C0₂, DEA and MDEA resulting in the formation of degradation compounds. Degradation not only represents a loss of valuable solvent, but may also lead to operational problems such as corrosion, foaming and fouling. C0₂ equilibrium solubility in aqueous MDEA solutions as well as in aqueous N,N-bis hydroxyethyl piperazine ("BHEP"), a major DEA and MDEA degradation product, were measured and mathematical models to predict equilibrium C0₂ solubility in aqueous MDEA and aqueous BHEP solutions were developed. DEA degradation experiments under flow conditions were carried out in a coiled heat exchnager tube heated by means of a constant temperature heat transfer fluid. A Mathematical model predicting DEA degradation in heat transfer tubes was developed. Carefully controlled MDEA degradation experiments with C0₂ were carried out in a 600 mL stainless steel autoclave to study the effect of temperature, MDEA concentration and C0₂ partial pressure. MDEA was found to degrade fairly rapidly at elevated temperature. The major MDEA degradation compounds were identified by gas chromatography and mass spectrometry. A kinetic model describing MDEA degradation was developed. Solution purification studies consisting of activated carbon adsorption of degradation compounds and reversal of degradation reactions by alkali addition were also studied. While activated carbon adsorption was found ineffective, alkali addition was found to be quite effective in reversing some of the major DEA degradation reactions. A purification process based on degradation reaction reversal technique was developed.
The SIDE dual VIS-NIR fiber fed spectrograph for the 10.4 m Gran Telescopio Canarias
Creators: name: Rabaza, O.
name: Epps, H. W.
name: Ubierna, M.
name: Sanchez, J.
name: Azzaro, M.
name: Prada, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: SIDE (Super Ifu Deployable Experiment) is proposed as second-generation, common-user instrument for the GTC. It will be a low and intermediate resolution fiber fed spectrograph, highly efficient in multi-object and 3D spectroscopy. The low resolution part (R = 1500, 4000) is called Dual VIS-NIR because it will observe in the VIS and NIR bands (0.4 ~V 1.7 microns) simultaneously. Because of the large number of fibers, a set of ~10 identical spectrographs is needed, each with a mirror collimator, a dichroic and two refractive cameras. The cameras are optimized for 0.4 - 0.95 microns (VIS) and 0.95 - 1.7 microns (NIR) respectively.
description: To appear in "Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation" SPIE conference Proc. 7018, Marseille, 23-28 June 2008
Elutriation of particles from rotary kilns
Creators: name: Tackie, Emmanuel Nii
Publisher: name: University of British Columbia
Year: 2010

description: The elutriation of fine materials from the solids bed in rotary kilns was studied in a laboratory scale steel cylinder of 0.2m in diameter and 2.4m in length. The cylinder was charged with a batch of fine alumina particles having a mean size of 64jum and the average elutriation rate measured at different air flow rates, rotational speeds and percentage of solids fill. All measurements were done at room temperature. To show the effect of fines concentration and segregation in the solids bed, a binary mixture of fine alumina and coarse Ottawa sand was used. Local dust concentration profiles were measured in the freeboard through a probe equipped with a filter. Design factors such as the geometry of the kiln exit dams, were found to influence dust carryover into the cleaning equipment by accelerating the flowing gas and or obstructing the flow of solids in the gas phase. Wall roughness and imperfections also affected elutriation especially at higher rotational speeds by exposing trapped fines directly into the flowing gas. Dust concentration measurements revealed that most of the solids in the gas phase travelled in saltation within about 2 cm above the bed surface. With the wall effect eliminated by an insert, increasing the rotational speed was found to exhibit a negative effect on the elutriation rate. Dust concentrations were higher in the gas phase above the lower edge of the rotating bed than at the upper edge or midpoint. However, while the concentration above the rest of the bed remained fairly constant with increased rotational speeds, at the lower edge of the bed it decreased. Banding segregation occurred in the beds composed of fine and coarse particles. Elutriation increased with the number of fine bands formed which was proportional to the concentration of fines. The location of the bands from the exit also influenced elutriation. Saltating particles returning to the bed close to the exit had a better chance of ejecting other particles if they landed on fine bands than they would if they landed on coarse bands. Gas velocity exhibited the strongest influence on elutriation rate. A correlation of experimental results showed a velocity dependence of U⁶ regardless of initial fines concentration in the bed. An entrainment mechanism has been formulated based on the collision of saltating particles on the solids bed. Subsequently, a simple mathematical model was developed to describe the influence of the operating variables on elutriation. The model predictions were verified with the experimental data and the scanty data in the literature. The model requires knowledge of the saltation height and the threshold shear stress for particle movement. Model predictions for typical industrial kilns are presented. The predictions are in fairly good agreement with values reported in a survey of industrial kiln operations made prior to the experimental program, given that the effect of kiln internals was not accounted for in the model.
Terza età ed educazione linguistica.  Narrazione e letterature come spazio per la memoria, la saggezza e la creatività
Creators: name: Luise, Maria Cecilia
Publisher: name: Firenze University Press
Year: 2014
Subjects: Third age; older adults’ brains; language teaching; languages and literature; autobiographical method

description: People, all over the world, are getting older and older: older adults are an increasingly important part of society, even though they are often discriminated against and simply considered weak and unproductive. In fact, psychological and neurobiological medical research has proved that changes occurring in the minds and brains of older adults do not simply imply losses, but also modifications that allow self-adaptation to physical aging; at the same time geragogy has highlighted the fact that older adults have great growth and educability potentialities. Yet, the educability of the elderly is based on the psychological and neurological characteristics of age: it is worth giving past and autobiographical memory, creative skills and wisdom the opportunity of growth through the study of languages and literature as a cultural and intercultural challenge, as well as through the autobiographical method.
description: LEA - Lingue e Letterature d'Oriente e d'Occidente, Vol 3 (2014)