cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
David G. Tompkins, Composing the Party Line. Music and Politics in Early Cold War. Poland and East Germany
Creators: name: Ritter, Rüdiger
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 1 (2015)
Izabela A. Dahl, Ausschluss und Zugehörigkeit. Polnische jüdische Zwangsmigration in Schweden nach dem Zweiten Weltkrieg
Creators: name: Blumberg-Stankiewicz, Katharina
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 1 (2015)
The Adaptive Multi-Factor Model and the Financial Market
Creators: name: Zhu, Liao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: Modern evolvements of the technologies have been leading to a profound influence on the financial market. The introduction of constituents like Exchange-Traded Funds, and the wide-use of advanced technologies such as algorithmic trading, results in a boom of the data which provides more opportunities to reveal deeper insights. However, traditional statistical methods always suffer from the high-dimensional, high-correlation, and time-varying instinct of the financial data. In this dissertation, we focus on developing techniques to stress these difficulties. With the proposed methodologies, we can have more interpretable models, clearer explanations, and better predictions.
description: PhD thesis
Detection of Neutron Scattering from Phase IV of Ce0.7La0.3B6: A Confirmation of the Octupole Order
Creators: name: Kuwahara, K.
name: Iwasa, K.
name: Kohgi, M.
name: Aso, N.
name: Sera, M.
name: Iga, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have performed a single crystal neutron scattering experiment on Ce0.7La0.3B6 to investigate the order parameter of phase IV microscopically. Below the phase transition temperature 1.5 K of phase IV, weak but distinct superlattice reflections at the scattering vector (h/2,h/2,l/2) (h, l = odd number) have been observed by neutron scattering for the first time. The intensity of the superlattice reflections is stronger for high scattering vectors, which is quite different from the usual magnetic form factor of magnetic dipoles. This result directly evidences that the order parameter of phase IV has a complex magnetization density, consistent with the recent experimental and theoretical prediction in which the order parameter is the magnetic octupoles Tbeta with Gamma5 symmetry of point group Oh. Neutron scattering experiments using short wavelength neutrons, as done in this study, could become a general method to study the high-rank multipoles in f electron systems.
description: 4 pages, 4 figures
Verification of quantum-domain process using two non-orthogonal states
Creators: name: Namiki, Ryo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: If a quantum channel or process cannot be described by any measure-and-prepare scheme, we may say the channel is in \textit{quantum domain} (QD) since it can transmit quantum correlations. The concept of QD clarifies the role of quantum channel in quantum information theory based on the local-operation-and-classical-communication (LOCC) paradigm: The quantum channel is only useful if it cannot be simulated by LOCC. We construct a simple scheme to verify that a given physical process or channel is in QD by using two non-orthogonal states. We also consider the application for the experiments such as the transmission or storage of quantum optical coherent states, single-photon polarization states, and squeezed vacuum states.
Synthesis models in the VO framework
Creators: name: Cervino, M.
name: Terlevich, E.
name: Terlevich, R.
name: Rodrigo-Blanco, C.
name: Luridiana, V.
name: Lopez, A.
name: Solano, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The theory interest group in the International Virtual Observatory Alliance (IVOA) has the goal of ensuring that theoretical data and services are taken into account in the IVOA standards process. In this poster we present some of the efforts carried out by this group to include evolutionary synthesis models in the VO framework. In particular we present the VO tool PGos3, developed by the INAOE (Mexico) and the Spanish Virtual Observatory which includes most of public SSP models in the VO framework (e.g. VOSpec). We also describe the problems related with the inclusion of synthesis models in the VO framework and we try to encourage people to define the way in which synthesis models should be described. This issue has implications not only for the inclusion of synthesis models in the the VO framework but also for a proper usage of synthesis models.
description: Stellar Populations as Building Blocks of Galaxies, Proceedings of IAU Symposium #241. Edited by A. Vazdekis and R. F. Peletier. Cambridge: Cambridge University Press, 2007, pp. 171-172
Experimental characterization of Gaussian quantum communication channels
Creators: name: DiGuglielmo, James
name: Hage, Boris
name: Franzen, Alexander
name: Fiurasek, Jaromir
name: Schnabel, Roman
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a full experimental characterization of continuous variable quantum communication channels established by shared entanglement together with local operations and classical communication. The resulting teleportation channel was fully characterized by measuring all elements of the covariance matrix of the shared two-mode squeezed Gaussian state. From the experimental data we determined the lower bound to the quantum channel capacity, the teleportation fidelity of coherent states and the logarithmic negativity and the purity of the shared state. Additionally, a positive secret key rate was obtained for two of the established channels.
description: 9 pages, 4 figures, submitted to Physical Review A
Linear Sigma Models for the R^8/Z_k Orbifold
Creators: name: Okuyama, Kazumi
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct N=4 gauged linear sigma models in two dimensions whose Higgs branch has a R^8/Z_k orbifold singularity or its generalization. Our linear sigma models have either ALF or ALE type hyperKahler 8-manifolds as their Higgs branch. For the ALE case, the matter content of our model is specified by a quiver diagram which is a union of two A-type extended Dynkin diagrams overlapping at one link.
description: 14 pages, 1 figure; v2: correspondence to brane configuration corrected, v3: minor corrections
The crossing number of composite knots
Creators: name: Lackenby, Marc
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25; 57N10

description: It is a very old conjecture that the crossing number of knots is additive under connected sum. In other words, if K#K' is the connected sum of knots K and K', then does the equality c(K#K') = c(K) + c(K') hold? We prove that c(K#K') is at most c(K) + c(K') and at least (c(K) + c(K'))/152.
description: 28 pages, 20 figures; final version, to appear in the Journal of Topology
Classifying three-character RCFTs with Wronskian Index equalling $\mathbf{0}$ or $\mathbf{2}$
Creators: name: Das, Arpit
name: Gowdigere, Chethan N.
name: Santara, Jagannath
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the modular linear differential equation (MLDE) approach to classifying rational conformal field theories (RCFTs) both the MLDE and the RCFT are identified by a pair of non-negative integers $\textbf{[n,l]}$. $\mathbf{n}$ is the number of characters of the RCFT as well as the order of the MLDE that the characters solve and $\mathbf{l}$, the Wronskian index, is associated to the structure of the zeroes of the Wronskian of the characters. In this paper, we study $\textbf{[3,0]}$ and $\textbf{[3,2]}$ MLDEs in order to classify the corresponding CFTs. We reduce the problem to a "finite" problem: to classify CFTs with central charge $ 0 < c \leq 96$, we need to perform $6,720$ computations for the former and $20,160$ for the latter. Each computation involves (i) first finding a simultaneous solution to a pair of Diophantine equations and (ii) computing Fourier coefficients to a high order and checking for positivity. In the $\textbf{[3,0]}$ case, for $ 0 < c \leq 96$, we obtain many character-like solutions: two infinite classes and a discrete set of $303$. After accounting for various categories of known solutions, including Virasoro minimal models, WZW CFTs, Franc-Mason vertex operator algebras and Gaberdiel-Hampapura-Mukhi novel coset CFTs, we seem to have seven hitherto unknown character-like solutions which could potentially give new CFTs. We also classify $\textbf{[3,2]}$ CFTs for $ 0 < c \leq 96$: each CFT in this case is obtained by adjoining a constant character to a $\textbf{[2,0]}$ CFT, whose classification was achieved by Mathur-Mukhi-Sen three decades ago.
description: Added references and explanations and tables. an added section on possible GHM-dual pairs of CFTs. unchanged section three which contains the classification. 4 pages
A Comparison of Similarity Based Instance Selection Methods for Cross Project Defect Prediction
Creators: name: Hosseini, Seyedrebvar
name: Turhan, Burak
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Context: Previous studies have shown that training data instance selection based on nearest neighborhood (NN) information can lead to better performance in cross project defect prediction (CPDP) by reducing heterogeneity in training datasets. However, neighborhood calculation is computationally expensive and approximate methods such as Locality Sensitive Hashing (LSH) can be as effective as exact methods. Aim: We aim at comparing instance selection methods for CPDP, namely LSH, NN-filter, and Genetic Instance Selection (GIS). Method: We conduct experiments with five base learners, optimizing their hyper parameters, on 13 datasets from PROMISE repository in order to compare the performance of LSH with benchmark instance selection methods NN-Filter and GIS. Results: The statistical tests show six distinct groups for F-measure performance. The top two group contains only LSH and GIS benchmarks whereas the bottom two groups contain only NN-Filter variants. LSH and GIS favor recall more than precision. In fact, for precision performance only three significantly distinct groups are detected by the tests where the top group is comprised of NN-Filter variants only. Recall wise, 16 different groups are identified where the top three groups contain only LSH methods, four of the next six are GIS only and the bottom five contain only NN-Filter. Finally, NN-Filter benchmarks never outperform the LSH counterparts with the same base learner, tuned or non-tuned. Further, they never even belong to the same rank group, meaning that LSH is always significantly better than NN-Filter with the same learner and settings. Conclusions: The increase in performance and the decrease in computational overhead and runtime make LSH a promising approach. However, the performance of LSH is based on high recall and in environments where precision is considered more important NN-Filter should be considered.
description: The 36th ACM/SIGAPP Symposium on Applied Computing (SAC'21), 10 pages
Studies of [alpha]-galactosidases isolated from Clostridium perfringens and waste lager yeast (Saccharomyces carlsbergensis)
Creators: name: Durance, Timothy Douglas
Publisher: name: University of British Columbia
Year: 2010

description: This study is divided into two parts. Part 1 describes the partial purification and characterization of a Clostridium perfringens α-galactosidase while part 2 describes the isolation and characterization of α-galactosidase from waste lager yeast (Saccharomyces carlsbergensis, also known as S. uvarum). Of 21 strains of C. perfringens tested, 10 utilized either raffinose or melibiose while 2 utilized both sugars. Spore production in Duncan Strong medium was superior in the presence of raffinose as opposed to starch in 12 of 21 strains. One strain of C. perfringens (M34) yielded 1.2 units of α-galactosidase/g washed cells. This enzyme had an isoelectric point of 5.6 and a pH optimum for hydrolysis of p-nitrophenyl α-D-galactopyranoside (PNPG) of 6.3. Molecular weight of the native protein was 96,000. Monomer molecular weight appeared to be 46,000. Km was 0.20 ±0.02mM PNPG. Heat stability of the enzyme at 45°C decreased as purity increased. This trend was only partially reversed by the addition of 2-mercaptoethanol, NADH, cysteine, and/or bovine serum albumin to the reaction mixture. Waste lager yeast was found to contain 27 Units of α-galactosidase /g yeast cells (dry weight). This activity was resolved into 3 active peaks by DEAE cellulose chromatography. Subsequent gel filtration indicated molecular weights of the α-galactosidase in peaks A, B and C to be 118,000, 95,000, and 65,000 respectively. The isoelectric point of all three forms of the enzyme was 4.4 ±0.1. The enzyme of peak C was shown to have a pH optimum of 4.5. Km values (± standard errors) were 2.54 ±0.32 mM p-nitrophenyl PNPG and 21.1 ±1.8 mM raffinose.
A comparison of the tension response to rapid lengthening or shortening steps in isometrically contracting frog skeletal muscle
Creators: name: Dusik, Laureen Anne
Publisher: name: University of British Columbia
Year: 2010

description: Rapid length steps of isometrically contracting single skeletal muscle fibres, or whole muscle, provide a measure of the elastic properties of a structure believed to be an integral part of the myosin cross-bridge. The experiments to be described were designed to compare the elastic properties of this structure when measured with small amplitude (2-6 nm/h-s), rapid (1ms or 500 us duration) lengthening steps versus shortening steps. All the experiments were carried out at 0°-4°C, using small bundles (2-20 fibres) or single fibres from frog semitendinosus muscle. The preparation was given a rapid stretch or release at various times during the isometric twitch and tetanus. During the initial development of tension in an isometric twitch and tetanus, the stiffness was always seen to be rising faster than the force. During the relaxation phase of the isometric twitch, the stiffness was observed to lag the tension. During the relaxation phase of an isometric tetanus prior to the 'shoulder', the change in stiffness was seen to lag the tension change. Following the shoulder, there was a rapid fall in stiffness which corresponded to a similar decline in tension. In all instances, when stiffness values at a given force, and measured with a rapid release, were compared to those obtained with stretch, rapid lengthening produced a consistently higher stiffness than a shortening step. The difference was most pronounced during the late rising phase of tension, maximum tension, and the early relaxation phase of the twitch or tetanus. Several suggestions are discussed to explain this observed difference in stiffness between stretch and release. These include the possibilities that the instantaneous elasticity of the cross-bridge may be non-linear during stretch, and detachment of cross-bridges occurs during release but not stretch.
Karen Auerbach, The House at Ujazdowskie 16. Jewish Families in Warsaw after the Holocaust
Creators: name: Ansilewska, Marta
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 1 (2015)
ИСПОЛЬЗОВАНИЕ ИСКУССТВЕННОГО ИНТЕЛЛЕКТА В ФОРМИРОВАНИИ ЦИФРОВОЙ КОМПЕТЕНТНОСТИ БУДУЩИХ ИНЖЕНЕРОВ
Creators: name: Абылова, Гулбахар
name: Агжанов, Тимур-Мухаммет
name: Жолдасбаева, Рано
Publisher: name: Zenodo
Year: 2025

description: Современное инженерное образование требует подготовки специалистов, обладающих не только фундаментальными знаниями, но и высокими цифровыми компетенциями. Искусственный интеллект (ИИ) играет ключевую роль в этом процессе, обеспечивая новые подходы к обучению, автоматизации инженерных задач и аналитике данных.
Theory of Fulde-Ferrell-Larkin-Ovchinnikov state of superconductors with and without inversion symmetry: Hubbard model approach
Creators: name: Yokoyama, Takehito
name: Onari, Seiichiro
name: Tanaka, Yukio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state of superconductors with and without inversion symmetry based on the Hubbard model on the square lattice near half-filling, using the random phase approximation. We show that center of mass momentum $Q$ tends to be parallel to $x$- or y-axis in the presence of inversion symmetry, while $Q$ vector is likely to be perpendicular to the magnetic field in the absence of inversion symmetry. We also clarify that $d+f$-wave pairing is favored and the hetero spin triplet $f$-wave state is present in the FFLO state unlike state in the superconductors only with the Rashba type spin-orbit coupling (RSOC) originating from the broken inversion symmetry. The triplet $f$-wave state is enhanced by magnetic field and the RSOC. This stems from the reduction of the spin susceptibilities by the magnetic field and the RSOC.
description: 9 pages, 15 figures, 1 table
The Gaia-ESO survey: A lithium depletion boundary age for NGC 2232
Creators: name: Binks, A. S.
name: Jeffries, R. D.
name: Jackson, R. J.
name: Franciosini, E.
name: Sacco, G. G.
name: Bayo, A.
name: Magrini, L.
name: Randich, S.
name: Arancibia, J.
name: Bergemann, M.
name: Bragaglia, A.
name: Gilmore, G.
name: Gonneau, A.
name: Hourihane, A.
name: Jofré, P.
name: Korn, A. J.
name: Morbidelli, L.
name: Prisinzano, L.
name: Worley, C. C.
name: Zaggia, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Astrometry and photometry from {\it Gaia} and spectroscopic data from the {\it Gaia}-ESO Survey (GES) are used to identify the lithium depletion boundary (LDB) in the young cluster NGC 2232. A specialised spectral line analysis procedure was used to recover the signature of undepleted lithium in very low luminosity cluster members. An age of $38\pm 3$ Myr is inferred by comparing the LDB location in absolute colour-magnitude diagrams (CMDs) with the predictions of standard models. This is more than twice the age derived from fitting isochrones to low-mass stars in the CMD with the same models. Much closer agreement between LDB and CMD ages is obtained from models that incorporate magnetically suppressed convection or flux-blocking by dark, magnetic starspots. The best agreement is found at ages of $45-50$\,Myr for models with high levels of magnetic activity and starspot coverage fractions $>50$ per cent, although a uniformly high spot coverage does not match the CMD well across the full luminosity range considered.
An Agnostic Domain Specific Language for Implementing Attacks in an Automotive Use Case
Creators: name: Wolschke, Christian
name: Marksteiner, Stefan
name: Braun, Tobias
name: Wolf, Markus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: F.4.3; F.3.1; D.2.5; D.4.6
subject: 68Q45, 68M25,

description: This paper presents a Domain Specific Language (DSL) for generically describing cyber attacks, agnostic to specific system-under-test(SUT). The creation of the presented DSL is motivated by an automotive use case. The concepts of the DSL are generic such thatattacks on arbitrary systems can be addressed.The ongoing trend to improve the user experience of vehicles with connected services implies an enhanced connectivity as well asremote accessible interface opens potential attack vectors. This might also impact safety and the proprietary nature of potential SUTs.Reusing tests of attack vectors to industrialize testing them on multiple SUTs mandates an abstraction mechanism to port an attackfrom one system to another. The DSL therefore generically describes attacks for the usage with a test case generator (and executionenvironment) also described in this paper. The latter use this description and a database with SUT-specific information to generateattack implementations for a multitude of different (automotive) SUTs.
description: 13 pages, 4 figures, accepted at the 10th International Workshop on Security of Mobile Applications (IWSMA 2021) in conjunction with the 16th International Conference on Availability, Reliability and Security (ARES 2021)
Trapping Ions and Atoms Optically
Creators: name: Schaetz, Tobias
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Isolating neutral and charged particles from the environment is essential in precision experiments. For decades, this has been achieved by trapping ions with radio-frequency (rf) fields and neutral particles with optical fields. Recently, trapping of ions by interaction with light has been demonstrated. This might permit combining the advantages of optical trapping and ions. For example, by superimposing optical traps to investigate ensembles of ions and atoms in absence of any radiofrequency fields, as well as to benefit from the versatile and scalable trapping geometries featured by optical lattices. In particular, ions provide individual addressability, electronic and motional degrees of freedom that can be coherently controlled and detected via high fidelity, state-dependent operations. Their long-range Coulomb interaction is significantly larger compared to those of neutral atoms and molecules. This qualifies to study ultra-cold interaction and chemistry of trapped ions and atoms, as well as to provide a novel platform for higher-dimensional experimental quantum simulations. The aim of this topical review is to present the current state of the art and to discuss current challenges and the prospects of the emerging field.
description: 12 pages, 5 figures
Synthesizing time-series wound prognosis factors from electronic medical records using generative adversarial networks
Creators: name: Foomani, Farnaz H.
name: Anisuzzaman, D. M.
name: Niezgoda, Jeffrey
name: Niezgoda, Jonathan
name: Guns, William
name: Gopalakrishnan, Sandeep
name: Yu, Zeyun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.2

description: Wound prognostic models not only provide an estimate of wound healing time to motivate patients to follow up their treatments but also can help clinicians to decide whether to use a standard care or adjuvant therapies and to assist them with designing clinical trials. However, collecting prognosis factors from Electronic Medical Records (EMR) of patients is challenging due to privacy, sensitivity, and confidentiality. In this study, we developed time series medical generative adversarial networks (GANs) to generate synthetic wound prognosis factors using very limited information collected during routine care in a specialized wound care facility. The generated prognosis variables are used in developing a predictive model for chronic wound healing trajectory. Our novel medical GAN can produce both continuous and categorical features from EMR. Moreover, we applied temporal information to our model by considering data collected from the weekly follow-ups of patients. Conditional training strategies were utilized to enhance training and generate classified data in terms of healing or non-healing. The ability of the proposed model to generate realistic EMR data was evaluated by TSTR (test on the synthetic, train on the real), discriminative accuracy, and visualization. We utilized samples generated by our proposed GAN in training a prognosis model to demonstrate its real-life application. Using the generated samples in training predictive models improved the classification accuracy by 6.66-10.01% compared to the previous EMR-GAN. Additionally, the suggested prognosis classifier has achieved the area under the curve (AUC) of 0.975, 0.968, and 0.849 when training the network using data from the first three visits, first two visits, and first visit, respectively. These results indicate a significant improvement in wound healing prediction compared to the previous prognosis models.
description: 20 pages, 5 figures, 5 tables
Hugo Service, Germans to Poles. Communism, Nationalism and Ethnic Cleansing after the Second World War
Creators: name: Cichon, Matthias E.
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 1 (2015)
M-Theory Through the Looking Glass: Tachyon Condensation in the E_8 Heterotic String
Creators: name: Horava, Petr
name: Keeler, Cynthia A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the spacetime decay to nothing in string theory and M-theory. First we recall a nonsupersymmetric version of heterotic M-theory, in which bubbles of nothing -- connecting the two E_8 boundaries by a throat -- are expected to be nucleated. We argue that the fate of this system should be addressed at weak string coupling, where the nonperturbative instanton instability is expected to turn into a perturbative tachyonic one. We identify the unique string theory that could describe this process: The heterotic model with one E_8 gauge group and a singlet tachyon. We then use worldsheet methods to study the tachyon condensation in the NSR formulation of this model, and show that it induces a worldsheet super-Higgs effect. The main theme of our analysis is the possibility of making meaningful alternative gauge choices for worldsheet supersymmetry, in place of the conventional superconformal gauge. We show in a version of unitary gauge how the worldsheet gravitino assimilates the goldstino and becomes dynamical. This picture clarifies recent results of Hellerman and Swanson. We also present analogs of R_ξgauges, and note the importance of logarithmic CFT in the context of tachyon condensation.
description: 36 pages, 1 figure
Subspaces with a common complement in a Banach space
Creators: name: Drivaliaris, D.
name: Yannakakis, N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46B20; 46C05; 47A05

description: We study the problem of the existence of a common algebraic complement for a pair of closed subspaces of a Banach space. We prove the following two characterizations: (1) The pairs of subspaces of a Banach space with a common complement coincide with those pairs which are isomorphic to a pair of graphs of bounded linear operators between two other Banach spaces. (2) The pairs of subspaces of a Banach space X with a common complement coincide with those pairs for which there exists an involution S on X exchanging the two subspaces, such that I+S is bounded from below on their union. Moreover we show that, in a separable Hilbert space, the only pairs of subspaces with a common complement are those which are either equivalently positioned or not completely asymptotic to one another. We also obtain characterizations for the existence of a common complement for subspaces with closed sum.
Deformation profiles and microscopic dynamics of complex fluids during oscillatory shear experiments
Creators: name: Edera, Paolo
name: Brizioli, Matteo
name: Zanchetta, Giuliano
name: Petekidis, George
name: Giavazzi, Fabio
name: Cerbino, Roberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Oscillatory shear tests are widely used in rheology to characterize the linear and non-linear mechanical response of complex fluids, including the yielding transition. There is an increasing urge to acquire detailed knowledge of the deformation field that is effectively present across the sample during these tests; at the same time, there is mounting evidence that the macroscopic rheological response depends on the elusive microscopic behavior of the material constituents. Here we employ a strain-controlled shear-cell with transparent walls to visualize and quantify the dynamics of tracers embedded in various cyclically sheared complex fluids, ranging from almost-ideal elastic to yield stress fluids. For each sample, we use image correlation processing to measure the macroscopic deformation field, and echo-Differential Dynamic Microscopy to probe the microscopic irreversible sample dynamics in reciprocal space; finally, we devise a simple scheme to spatially map the rearrangements in the sheared sample, once again without tracking the tracers. For the yield stress sample, we obtain a wave-vector dependent characterization of shear-induced diffusion across the yielding transition, which is accompanied by a three-order-of-magnitude speed-up of the dynamics and by a transition from localized, intermittent rearrangements to a more spatially homogeneous and temporally uniform activity. Our tracking free approach is intrinsically multi-scale, can successfully discriminate between different types of dynamics, and can be automated to minimize user intervention. Applications are many, as it can be translated to other imaging modes, including fluorescence, and can be used with sub-resolution tracers and even without tracers, for samples that provide intrinsic optical contrast.
Alfons Adam, „Die Arbeiterfrage soll mit Hilfe von KZ-Häftlingen gelöst werden“. Zwangsarbeit in KZ-Außenlagern auf dem Gebiet der heutigen Tschechischen Republik
Creators: name: Bacher, Dieter
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 1 (2015)
A cool R Coronae Borealis star Z UMi
Creators: name: Kipper, Tonu
name: Klochkova, Valentina
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The high resolution spectra of a R CrB type star Z UMi are analysed. The atmospheric parameters of Z UMi are estimated: Teff=5250+/-250K and log g=0.5+/-0.3. This places Z UMi among the coolest R CrB stars. The hydrogen deficiency of Z UMi is confirmed. The abundances of other elements resemble those found for the minority group of R CrB stars. We note very low iron abundance, [Fe/H]=-1.85, and an excess of lithium, [Li/Fe]=+1.9.
description: 11 pages, 3 figures, 2 tables
Chumma bicolor Jocqué & Alderweireldt 2018, sp. nov.
Creators: name: Jocqué, Rudy
name: Alderweireldt, Mark
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Chummidae
Chumma
Chumma bicolor

description: Chumma bicolor sp. nov.
urn:lsid:zoobank.org:act: 5AA2B187-E836-451B-9A88-2707AA478AE7
Figs 1 A–E, 2A, 12
Diagnosis
Chumma bicolor sp. nov. differs from related species by the contrasting dark areas on the abdomen; the spermathecae are provided with a large ventral atrium in front.
Etymology
The specific epithet is an adjective obviously referring to the contrasting colouration of the abdomen.
Material examined
Holotype
SOUTH AFRICA: ♀, Western Cape Province, Goukamma, 34°03.478′ S, 22°56.315′ E, beating shrubs on path near forest lodge, 31 Jan. 2014, R. Jocqué and E. Tybaert leg. (MRAC 244719).
Paratype
SOUTH AFRICA: ♀, same data as for holotype (MRAC 244720).
Note
On 2 February 2017, shrub beating was carried out during three hours at the type locality in search of males of the species. No extra specimens were found.
Description
Female
BODY MEASUREMENTS. TL 3.17, CL 1.27, CW 1.10, CH 0.53.
CARAPACE. Pale yellow with orange patches (Fig. 1 A–C).
ABDOMEN (Fig. 1B). Pale, with yellow orange scutum with reddish apodemes; posterior half with dark patch on either side; venter, sternum and spinnerets pale yellow. Entirely covered with short spines, each socket just in front of pale spot.
EYES. AME: 0.20; ALE: 0.30; AME–AME: 0.07; AME–ALE: 0.07; PME: 0.20: PLE: 0.30; PME–PME: 0.20; PME–PLE: 0.17. Clypeus 0.23 or 0.77 times width of ALE.
STERNUM. Length 1.97, width: 1.77.
LEGS. One prolateral spine on femur I.
LEG MEASUREMENTS.
EPIGYNE (Figs 1 D–E, 2A). Dark area with narrow transverse plate near posterior rim; central dark swelling with posterior extension in longitudinal axis; spermathecae large, rounded, with large ventral atrium in front near centre.
Male
Unknown.
Distribution
Only known from the type locality in the Western Cape Province in South Africa (Fig. 12).
description: Published as part of Jocqué, Rudy & Alderweireldt, Mark, 2018, New Chummidae (Araneae): quadrupling the size of the clade, pp. 1-25 in European Journal of Taxonomy 412 on pages 4-6, DOI: 10.5852/ejt.2018.412, http://zenodo.org/record/3806047
The Role of Libraries in Promoting Peace and Conflict Resolution in Zimbabwe
Creators: name: Ndinde, Shadreck
name: Nyabadza, Bert L. B.
name: Yingi, Edwin
name: Tsvangirai, Elvis
Publisher: name: AfLIA
Year: 2023
Subjects: classificationCode: 461006
subject: Library studies

description: Libraries strive to promote societal harmony and conversations, as stated in S.D.G. number 16 on Peace, Justice, and Strong Institutions. The Library has traditionally been a communal hub for knowledge generation, recreation, exchange, and social conversations. The role of libraries extends beyond the distribution of justice-related knowledge, as they also function as safe spaces, meeting places, and centres for societal discourse on peace and conflict resolution. This paper aims to identify ways the Libraries could help resolve political, social, and economic conflict in Zimbabwean communities. The study is a desktop study, which is based on the materials published by other researchers on related topics. Lack of Information is a common cause of conflicts like those that are political, social, and economic. The study concluded that Zimbabwean libraries are not doing enough to support peacemaking and conflict resolution. The libraries lack the resources and programs that promote peace and mutual understanding among community members. Zimbabwean libraries can be reconfigured to take the lead in supporting efforts for fostering peace.
Polarization signatures of a high-velocity scatterer in nebular-phase spectra of Type II supernovae
Creators: name: Dessart, Luc
name: Hillier, D. John
name: Leonard, Douglas C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Type II supernovae (SNe) often exhibit a linear polarization, arising from free-electron scattering, with complicated optical signatures, both in the continuum and in lines. Focusing on the early nebular phase, at a SN age of 200d, we conduct a systematic study of the polarization signatures associated with a 56Ni `blob' that breaks spherical symmetry. Our ansatz, supported by nonLTE radiative transfer calculations, is that the primary role of such a 56Ni blob is to boost the local density of free electrons, which is otherwise reduced following recombination in SNe II. Using 2D polarized radiation transfer modeling, we explore the influence of such an electron-density enhancement, varying its magnitude N_e_fac, its velocity location V_blob, and its spatial extent. For plausible N_e_fac values of a few tens, a high-velocity blob can deliver a continuum polarization P_cont of 0.5-1.0% at 200d. Our simulations reproduce the analytic scalings for P_cont, and in particular the linear growth with the blob radial optical depth. The most constraining information is, however, carried by polarized line photons. For a high V_blob, the polarized spectrum appears as a replica of the full spectrum, scaled down by a factor 100 to 1000 (i.e., 1/P_cont), and redshifted by an amount V_blob(1-cos(alpha_los)), where alpha_los is the line of sight angle. As V_blob is reduced, the redshift decreases and the replication deteriorates. Lines whose formation region overlap with the blob appear weaker and narrower in the polarized flux. Because of its dependence on inclination (~ sin^2 alpha_los), the polarization preferentially reveals asymmetries in the plane perpendicular to the line of sight. With the adequate choice of electron-density enhancement, some of these results may apply to asymmetric explosions in general, or to the polarization signatures from newly-formed dust in the outer ejecta. [abridged]
description: Accepted for publication in A&A
Galaxies narratives: fomes romanesque et entretiens infinis chez Diderot
Creators: name: Zecchi, Lina
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: Il tratto  stilistico dell’opera di Diderot è la forma dialogica che  permea tutti i suoi  scritti, rendendo quasi impossibile ricondurli ai  generi letterari  tradizionali: saggi, trattati, corrispondenza,  articoli dell’Encyclopédie, drammi, critica estetica,  racconti  e/o romanzi mettono a punto un dispositivo di “cattura emotiva” del  lettore,  un rapporto di conversazione infinitamente capriccioso, che  mima la parola  orale cercando di stabilire una forma di contatto  diretto fra narratore e  lettore. L’intrusione ironica del narratore  sembra prevalere sugli “effetti di  reale” e sulla forma chiusa  indispensabili alla costruzione dell’universo del  romanzo. Le opere  narrative di Diderot sono infatti una specie di atelier di  tutti i romanzi possibili:  sono forme in perpetuo cambiamento,  impreviste digressioni, mentre corpi e  azioni dei personaggi ne  contraddicono spesso le parole. I segni distintivi  dell’inizio e della  fine tradizionali di ogni romanzo si confondono, la  narrazione si  disgrega in frammenti di racconto discontinuo. A partire dal  folgorante  esordio col pastiche dei Bijoux indiscrets, per arrivare ai racconti filosofici dialogati  dell’ultima fase  creativa, la relazione ludica di Diderot col suo lettore si  apre a una  serie di interrogazioni destinate a mettere in discussione il  romanzo  tradizionale, la sua funzione, i suoi scopi e i procedimenti stessi   della creazione letteraria.
description: Annali Online  Lettere - Ferrara, V 1 (2010)
Los sietes pecados capitales en Modelos de mujer la incitación de lo prohibido
Creators: name: De La Paz Aguilera, Mari
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: La ribellione femminile di fronte alle convenzioni sociali, che affiora  in Spagna segnatamente nei primi anni della democrazia post-franchista,  non è solo un tema ricorrente nell’ambito del romanzo spagnolo  contemporaneo, ma anche una qualità essenziale delle protagoniste di un  buon numero di narrazioni. Almudena Grandes, che utilizza nella raccolta  Modelos de Mujer questo paradigma muliebre della postmodernità  imperniato sulla volontà manifesta di opporsi a quanto è giudicato  socialmente corretto, trasforma abilmente i tradizionali peccati  capitali in nuovi modelli di virtù.
description: Annali Online  Lettere - Ferrara, V 1 (2010)
Master equation approach to computing RVB bond amplitudes
Creators: name: Beach, K. S. D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We describe a "master equation" analysis for the bond amplitudes h(r) of an RVB wavefunction. Starting from any initial guess, h(r) evolves (in a manner dictated by the spin hamiltonian under consideration) toward a steady-state distribution representing an approximation to the true ground state. Unknown transition coefficients in the master equation are treated as variational parameters. We illustrate the method by applying it to the J1-J2 antiferromagnetic Heisenberg model. Without frustration (J2=0), the amplitudes are radially symmetric and fall off as 1/r^3 in the bond length. As the frustration increases, there are precursor signs of columnar or plaquette VBS order: the bonds preferentially align along the axes of the square lattice and weight accrues in the nearest-neighbour bond amplitudes. The Marshall sign rule holds over a large range of couplings, J2/J1 < 0.418. It fails when the r=(2,1) bond amplitude first goes negative, a point also marked by a cusp in the ground state energy. A nonrigourous extrapolation of the staggered magnetic moment (through this point of nonanalyticity) shows it vanishing continuously at a critical value J2/J1 = 0.447. This may be preempted by a first-order transition to a state of broken translational symmetry.
description: 8 pages, 7 figures
Chronic mental patients in three-quarter way housing : effect on quality of life
Creators: name: Hooper, Grace Jacqueline
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of the study was to discover if three-quarter way housing had an effect on the quality of life of chronic mental patients in the community. To determine the effect, five areas were investigated: number of hospital and crisis hostel admissions and days of institutionalization, the independence of the patients in basic living skills, the size and intimacy of the patients' social support system, the severity of their symptomatology, and the three most meaningful activities which gave them satisfaction in structuring their time. From published literature, measures were adapted and a random sample of 50 residents of a three-quarter way housing program and 20 applicants to the same program were surveyed by structured interview. Earlier self-report data were reanalyzed. The applicants were surveyed again after 12 months when they had become residents. Three-quarter way housing staff reported on the applicant group with the Progress Evaluation Scales in order to validate the self-report measures. Hospitalization admissions and patients days of institutionalization decreased considerably when patients were in residence. Independence was found to be at an acceptable level for community living but this was found to be due to the strict screening process into the program. Social networks of the residents, and the applicants when they became residents, were found to be approaching normalcy or within a normal range. The increase in casual relationships from applicant to resident status was statistically significant. Symptomatology was less severe for the resident group than the applicant group; the change in most measures of symptomatology items was statistically significant for the applicant group pre and post residency. Meaningful activities for the patients did not change in the direction of increased productivity or more active pursuits rather than passive, isolated pursuits when they became residents, but satisfaction with their activities was expressed by a large majority of those questioned. In the view of the patients studied, and supported by the data, three-quarter way housing created an effect on quality of life by significantly improving the mental health of the residents in a normalized environment which is less costly than halfway housing alternatives and requires less supervision.
A short review of some aspects of computational neurothehology- presentation
Creators: name: Graña, Manuel
name: Lope, Javier De
Publisher: name: Zenodo
Year: 2019

description: Presentation at IWINAC 2019

This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 777720
Stephan Lehnstaedt, Jochen Böhler (Hrsg.), Die Berichte der Einsatzgruppen aus Polen 1939. Vollständige Edition
Creators: name: Friedrich, Klaus-Peter
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 1 (2015)
Probing the isoscalar excitations of 12C with inelastic alpha scattering
Creators: name: Khoa, Dao T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The robust (spin and isospin zero) $α$-particle remains one of the best projectiles to probe the nuclear isoscalar excitations. In the present work, a microscopic folding model analysis of the \ac inelastic scattering to the 2$^+$ (4.44 MeV), 0$^+$ (7.65 MeV), 3$^-$ (9.64 MeV), 0$^+$ (10.3 MeV) and 1$^-$ (10.84 MeV) states in $^{12}$C has been performed using the 3-$α$ resonating group method wave functions. The isoscalar transition strengths of these states were carefully studied based on the coupled-channel analysis using the microscopic folded form factors. A correlation between the weak binding and/or short lifetime of the excited state and absorption in the exit channel of inelastic scattering has been established.
description: Talk given at SOTANCP Workshop, Strasbourg, May 2008; to appear in International Journal of Modern Physics E
Hard X-ray Transient Grating Spectroscopy on Bismuth Germanate
Creators: name: Rouxel, Jeremy R.
name: Fainozzi, Danny
name: Mankowsky, Roman
name: Rosner, Benedikt
name: Seniutinas, Gediminas
name: Mincigrucci, Riccardo
name: Catalini, Sara
name: Foglia, Laura
name: Cucini, Riccardo
name: Doring, Florian
name: Kubec, Adam
name: Koch, Frieder
name: Bencivenga, Filippo
name: Haddad, Andre Al
name: Gessini, Alessandro
name: Maznev, Alexei A.
name: Cirelli, Claudio
name: Gerber, Simon
name: Pedrini, Bill
name: Mancini, Giulia F.
name: Razzoli, Elia
name: Burian, Max
name: Ueda, Hiroki
name: Pamfilidis, Georgios
name: Ferrari, Eugenio
name: Deng, Yunpei
name: Mozzanica, Aldo
name: Johnson, Philip J. M.
name: Ozerov, Dmitry
name: Izzo, Maria G.
name: Bottari, Cettina
name: Arrell, Christopher
name: Divall, Edwin J.
name: Zerdane, Serhane
name: Sander, Mathias
name: Knopp, Gregor
name: Beaud, Paul
name: Lemke, Henrik T.
name: Milne, Chris J.
name: David, Christian
name: Torre, Renato
name: Chergui, Majed
name: Nelson, Keith A.
name: Masciovecchio, Claudio
name: Staub, Urs
name: Patthey, Luc
name: Svetina, Cristian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Optical-domain Transient Grating (TG) spectroscopy is a versatile background-free four-wave-mixing technique used to probe vibrational, magnetic and electronic degrees of freedom in the time domain. The newly developed coherent X-ray Free Electron Laser sources allow its extension to the X-ray regime. Xrays offer multiple advantages for TG: their large penetration depth allows probing the bulk properties of materials, their element-specificity can address core-excited states, and their short wavelengths create excitation gratings with unprecedented momentum transfer and spatial resolution. We demonstrate for the first time TG excitation in the hard X-ray range at 7.1 keV. In Bismuth Germanate (BGO), the nonresonant TG excitation generates coherent optical phonons detected as a function of time by diffraction of an optical probe pulse. This experiment demonstrates the ability to probe bulk properties of materials and paves the way for ultrafast coherent four-wave-mixing techniques using X-ray probes and involving nanoscale TG spatial periods.
description: 11 pages, 4 figures