cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MOTHER-FATHER RESOURCE CONTROL, MARRIAGE PAYMENTS, AND GIRL-BOY HEALTH IN RURAL BANGLADESH
Creators: name: Hallman, Kelly K.
name: Hallman, Kelly K.
Publisher: name: Unknown
Year: 2000
Subjects: Consumer/Household Economics

description: This study examines the effects of (1) current individual parental assets, (2) assets held by each parent before marriage, (3) transfers made at the time of the parents' marriage, and (4) family background characteristics of parents on the morbidity of preschool boys and girls in rural Bangladesh. The approach is unique in that it simultaneously tests alternative models of household decisionmaking and investigates gender bias within the household. Moreover, it is one of the few investigations we know of that provides a formal test of the intrahousehold model in the South Asian context. Results indicate that higher father share of current assets benefits boys’ health, but does not affect girls’ health. A greater proportion of pre-wedding assets held by the mother lowers the number of morbidity days experienced by girls. A larger share of wedding payments directed toward the husband’s side at the time of marriage reduces illness for preschoolers of both sexes later in the union. The finding that maternal and paternal shares have different impacts leads to a rejection of the unitary model of the household. Extended families also appear to play an important role in the production of child health, especially the number of living brothers of each parent, which reduces preschooler morbidity days.
Time reclustering for jet quenching studies
Creators: name: Apolinário, Liliana
name: Cordeiro, André
name: Zapp, Korinna
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The physics program of ultra-relativistic heavy-ion collisions at the Large Hadron Collider (LHC) and Relativistic Heavy-Ion Collider (RHIC) has brought a unique insight into the hot and dense QCD matter created in such collisions, the Quark-Gluon Plasma (QGP). Jet quenching, a collection of medium-induced modifications of the jets' internal structure that occur through their development in dense QCD matter, has a unique potential to assess the time structure of the produced medium. In this work, we perform an exploratory study to identify jet reclustering tools that can potentiate future QGP tomographic measurements with jets at current energies. Our results show that by using the inverse of formation time to obtain the jet clustering history, one can identify more accurately the time structure of QCD emissions inside jets, even in the presence of jet quenching.
description: 13 pages. Figures 3 and 12 changed to log base 10. Minor corrections. Accepted by EPJC
ATTRITION IN LONGITUDINAL HOUSEHOLD SURVEY DATA: SOME TESTS FOR THREE DEVELOPING-COUNTRY SAMPLES
Creators: name: Alderman, Harold
name: Behrman, Jere R.
name: Kohler, Hans-Peter
name: Maluccio, John A.
name: Watkins, Susan Cotts
name: Alderman, Harold
name: Behrman, Jere R.
name: Kohler, Hans-Peter
name: Maluccio, John A.
name: Watkins, Susan Cotts
Publisher: name: Unknown
Year: 2000
Subjects: Consumer/Household Economics

description: Longitudinal household data can have considerable advantages over much more widely used cross-sectional data. The collection of longitudinal data, however, may be difficult and expensive. One problem that has concerned many analysts is that sample attrition may make the interpretation of estimates problematic. Such attrition may be particularly severe in areas where there is considerable mobility because of migration between rural and urban areas. Many analysts share the intuition that attrition is likely to be selective on characteristics such as schooling and that high attrition is likely to bias estimates made from longitudinal data. This paper considers the extent of and implications of attrition for three longitudinal household surveys from Bolivia, Kenya, and South Africa that report very high per-year attrition rates between survey rounds. Our estimates indicate that (1) the means for a number of critical outcome and family background variables differ significantly between attritors and nonattritors; (2) a number of family background variables are significant predictors of attrition; but (3) nevertheless, the coefficient estimates for “standard” family background variables in regressions and probit equations for the majority of the outcome variables considered in all three data sets are not affected significantly by attrition. Therefore, attrition apparently is not a general problem for obtaining consistent estimates of the coefficients of interest for most of these outcomes. These results, which are very similar to results for developed economies, suggest that for these outcome variables—despite suggestions of systematic attrition from univariate comparisons between attritors and nonattritors, multivariate estimates of behavioral relations of interest may not be biased due to attrition.
Analogue model for quantum gravity phenomenology
Creators: name: Weinfurtner, Silke
name: Liberati, Stefano
name: Visser, Matt
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: So called "analogue models" use condensed matter systems (typically hydrodynamic) to set up an "effective metric" and to model curved-space quantum field theory in a physical system where all the microscopic degrees of freedom are well understood. Known analogue models typically lead to massless minimally coupled scalar fields. We present an extended "analogue space-time" programme by investigating a condensed-matter system - in and beyond the hydrodynamic limit - that is in principle capable of simulating the massive Klein-Gordon equation in curved spacetime. Since many elementary particles have mass, this is an essential step in building realistic analogue models, and an essential first step towards simulating quantum gravity phenomenology. Specifically, we consider the class of two-component BECs subject to laser-induced transitions between the components, and we show that this model is an example for Lorentz invariance violation due to ultraviolet physics. Furthermore our model suggests constraints on quantum gravity phenomenology in terms of the "naturalness problem" and "universality issue".
description: Talk given at 7th Workshop on Quantum Field Theory Under the Influence of External Conditions (QFEXT 05), Barcelona, Catalonia, Spain, 5-9 Sep 2005
PP-Wave Light-Cone Free String Field Theory at Finite Temperature
Creators: name: Abdalla, M. C. B
name: Gadelha, A. L.
name: Nedel, Daniel L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, a real-time formulation of light-cone pp-wave string field theory at finite temperature is presented. This is achieved by developing the thermo field dynamics (TFD) formalism in a second quantized string scenario. The equilibrirum thermodynamic quantities for a pp-wave ideal string gas are derived directly from expectation values on the second quantized string thermal vacuum. Also, we derive the real-time thermal pp-wave closed string propagator. In the flat space limit it is shown that this propagator can be written in terms of Theta functions, exactly as the zero temperature one. At the end, we show how supestrings interactions can be introduced, making this approach suitable to study the BMN dictionary at finite temperature.
description: 27 pages, revtex4
Daiber, Karl-Fritz, Volkskirche im Wandel
Creators: name: Müller-Fahrenholz, Geiko
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 23 Nr. 1 (1974): Ökumenische Rundschau, Band 23, Heft 1
The Persistence and Memory of Polar Nano-Regions in a Ferroelectric Relaxor Under an Electric Field
Creators: name: Xu, Guangyong
name: Gehring, P. M.
name: Shirane, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The response of polar nanoregions (PNR) in the relaxor compound Pb[(Zn$_{1/3}$Nb$_{2/3}$)$_{0.92}$Ti$_{0.08}$]O$_3$ subject to a [111]-oriented electric field has been studied by neutron diffuse scattering. Contrary to classical expectations, the diffuse scattering associated with the PNR persists, and is even partially enhanced by field cooling. The effect of the external electric field is retained by the PNR after the field is removed. The ``memory'' of the applied field reappears even after heating the system above $T_C$, and cooling in zero field.
Limit theorems and soft edge of freezing random matrix models via dual orthogonal polynomials
Creators: name: Andraus, Sergio
name: Hermann, Kilian
name: Voit, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary 60F05, Secondary 60B20, 70F10, 82C22, 33C45, 33C10, 60J60

description: $N$-dimensional Bessel and Jacobi processes describe interacting particle systems with $N$ particles and are related to $β$-Hermite, $β$-Laguerre, and $β$-Jacobi ensembles. For fixed $N$ there exist associated weak limit theorems (WLTs) in the freezing regime $β\to\infty$ in the $β$-Hermite and $β$-Laguerre case by Dumitriu and Edelman (2005) with explicit formulas for the covariance matrices $Σ_N$ in terms of the zeros of associated orthogonal polynomials. Recently, the authors derived these WLTs in a different way and computed $Σ_N^{-1}$ with formulas for the eigenvalues and eigenvectors of $Σ_N^{-1}$ and thus of $Σ_N$. In the present paper we use these data and the theory of finite dual orthogonal polynomials of de Boor and Saff to derive formulas for $Σ_N$ from $Σ_N^{-1}$ where, for $β$-Hermite and $β$-Laguerre ensembles, our formulas are simpler than those of Dumitriu and Edelman. We use these polynomials to derive asymptotic results for the soft edge in the freezing regime for $N\to\infty$ in terms of the Airy function. For $β$-Hermite ensembles, our limit expressions are different from those of Dumitriu and Edelman.
description: 32 pages, made small improvements and added references
How is chiral symmetry restored at finite density?
Creators: name: Tatsumi, T.
name: Nakano, E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Taking into account pseudoscalar as well as scalar condensates, we reexamine the chiral restoration path on the chiral manifold. We shall see both condensates coherently produce a density wave at a certain density, which delays chiral restoration as density or temperature is increased.
description: 4 pages, 2 figures; proc. of QM05
Color-Shift Measurement in Microlensing-Induced Stellar Variation from Future Space-Based Surveys
Creators: name: Park, Byeong-Gon
name: Han, Cheongho
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: If a microlensing event is caused by a star, the event can exhibit change in color due to the light from the lens. In the previous and current lensing surveys, the color shift could not be used to constrain the lens population because the blended light responsible for the color shift is mostly attributed to nearby background stars rather than the lens. However, events to be observed in future space-based surveys do not suffer from blending and thus the color information can be used to constrain lenses. In this paper, we demonstrate the usefulness of future surveys in measuring color shifts. By conducting simulation of galactic lensing events based on the specification of a proposed space-based lensing survey, we estimate that the shift in the color of $R-H$ will be measured at 5$σ$ level for $\sim 12%$ of events that occur on source stars with apparent magnitudes brighter than $J=22.5$. Color-shifted events tend to have high magnifications and the lenses will have brightnesses equivalent to those of source stars. The time scales of the color-shifted events tend to be longer than those without color shifts. From the mass distribution of lenses, we find that most of the color-shifted events will be produced by stellar lenses with spectral types down to mid M-type main sequence stars.
description: 5 pages and 3 figures
Well-Posedness for Semi-Relativistic Hartree Equations of Critical Type
Creators: name: Lenzmann, Enno
Publisher: name: arXiv
Year: 2005
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We prove local and global well-posedness for semi-relativistic, nonlinear Schrödinger equations $i \partial_t u = \sqrt{-Δ+ m^2} u + F(u)$ with initial data in $H^s(\mathbb{R}^3)$, $s \geq 1/2$. Here $F(u)$ is a critical Hartree nonlinearity that corresponds to Coulomb or Yukawa type self-interactions. For focusing $F(u)$, which arise in the quantum theory of boson stars, we derive a sufficient condition for global-in-time existence in terms of a solitary wave ground state. Our proof of well-posedness does not rely on Strichartz type estimates, and it enables us to add external potentials of a general class.
description: 18 pages; replaced with revised version; remark and reference on blow up added
CONSUMPTION INSURANCE AND VULNERABILITY TO POVERTY: A SYNTHESIS OF THE EVIDENCE FROM BANGLADESH, ETHIOPIA, MALI, MEXICO, AND RUSSIA
Creators: name: Skoufias, Emmanuel
name: Quisumbing, Agnes R.
name: Skoufias, Emmanuel
name: Quisumbing, Agnes R.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Food Security and Poverty
subject: Bangladesh
subject: Consumption
subject: Ethiopia
subject: Income
subject: Mali
subject: Mexico
subject: Poverty
subject: Risk-sharing
subject: Russia
subject: Vulnerability

description: This paper synthesizes the results of five studies using household panel data from Bangladesh, Ethiopia, Mali, Mexico and Russia, which examine the extent to which households are able through formal and/or informal arrangements to insure their consumption from specific economic shocks and fluctuations in their real income. Building on the recent literature of consumption smoothing and risk sharing, the degree of consumption insurance is defined by the degree to which the growth rate of household consumption covaries with the growth rate of household income. All the cases studies show that food consumption is better insured than nonfood consumption from idiosyncratic shocks. Adjustments in nonfood consumption appear to act as a mechanism for partially insuring ex-post the consumption of food from the effects of income changes. Food consumption is also more likely to be covered by informal insurance arrangements at the community level than nonfood consumption. Linkages among consumption variability, the level than nonfood consumption, the incidence of poverty, and the probability of being ever poor and the proportion of time spent in poverty are also explored for Bangladesh, Ethiopia, and Russia. All the case studies also show that households use a portfolio of risk-coping strategies, but that different types of households may have differential ability to use these strategies. In particular, poorer households may be less able to use mechanisms that rely to initial wealth as collateral. In this regard, pubic transfer programs may have a more redistributive effect.
Dalecarlioceras Frye 1987
Creators: name: Kröger, Björn
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Cephalopoda
Oncoceratida
Oncoceratidae
Dalecarlioceras

description: Genus Dalecarlioceras Frye, 1987
Type species
Dalecarlioceras bodense Frye, 1987, Kallholn, Dalarna, Sweden, Boda Limestone, latest Katian; by original designation
Diagnosis
Moderately to rapidly enlarging, cyrtoconic, exogastric brevicones with compressed conch cross section; mature body chamber gibbous with maximum gibbosity at mid-length, becoming compressed orad; dorsal conch profile straight to faintly concave, ventral conch profile moderately convex; aperture may be constricted with prominent hyponomic sinus; siphuncle situated close to venter, small in diameter, with tubular to fusiform segments, no endsiphuncular deposits known. (Adopted from Frye 1987.)
description: Published as part of Kröger, Björn, 2025, The Lyckholm acme of cephalopods - Review of the late Katian (Vormsi-Pirgu regional stages) Ordovician cephalopods of Estonia, pp. 1-169 in European Journal of Taxonomy 978 on page 85, DOI: 10.5852/ejt.2025.978.2801, http://zenodo.org/record/14988376
Entanglement purification by counting and locating errors with entangling measurements
Creators: name: Sàbat, Ferran Riera
name: Sekatski, Pavel
name: Pirker, Alexander
name: Dür, Wolfgang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider entanglement purification protocols for multiple copies of qubit states. We use high-dimensional auxiliary entangled systems to learn about number and positions of errors in the noisy ensemble in an explicit and controlled way, thereby reducing the amount of noise in the ensemble and purifying the remaining states. This allows us to design entanglement purification protocols for any number of copies that work particularly well for a small number of expected errors, i.e. high fidelity of initial states. The main tool is a counter gate with which the required non-local information can be transferred into the high-dimensional entangled qudit auxiliary states. We compare our schemes to standard recurrence protocols that operate on pairs of copies, and hashing and breeding protocols that operate on a (asymptotically) large number of copies. Our protocols interpolate between these two regimes, leading to a higher achievable fidelity and yield. We illustrate our approach for bipartite qubit states, and generalize it to purify multi-party GHZ states.
description: (see also "Entanglement-assisted entanglement purification" for a short version summarizing the main results.)
PUBLIC POLICY, FOOD MARKETS AND HOUSEHOLD COPING STRATEGIES IN BANGLADESH: LESSONS FROM THE 1998 FLOODS
Creators: name: Del Ninno, Carlo
name: Dorosh, Paul A.
name: Smith, Lisa C.
name: Del Ninno, Carlo
name: Dorosh, Paul A.
name: Smith, Lisa C.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Consumer/Household Economics
subject: safety net programs
subject: Bangladesh food markets
subject: household coping

description: At their peak, the 1998 floods covered two-thirds of Bangladesh, causing severe damage to the major rice crop and threatening the food security of tens of millions of households. Ultimately, well-functioning private markets, suitable government policies, and public and NGO interventions combined with effective private coping strategies to prevent a major post-disaster crisis. In this paper, we highlight the contribution of government policy interventions, including an earlier trade liberalization, to stabilization of rice markets during and after the floods. Then, we examine the impacts of the floods on flood-exposed households using a panel data set covering 750 households in three rounds over a 13-month period, focusing on impacts of the flood on household assets, consumption, and nutritional outcomes. The study finds that private sector borrowing, a major household coping strategy, played a key role in helping households maintain consumption, but that long-term debts increased. Finally, based on an econometric analysis of household food consumption, we present empirical estimates of the contribution of rice market stabilization to household food security.
Gravity Waves in the Sun
Creators: name: Rogers, Tamara M.
name: Glatzmaier, Gary A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present numerical simulations of penetrative convection and gravity wave excitation in the Sun. Gravity waves are self-consistently generated by a convective zone overlying a radiative interior. We produce power spectra for gravity waves in the radiative region as well as estimates for the energy flux of gravity waves below the convection zone. We calculate a peak energy flux in waves below the convection zone to be three orders of magnitude smaller than previous estimates for m=1. The simulations show that the linear dispersion relation is a good approximation only deep below the convective-radiative boundary. Both low frequency propagating gravity waves as well as higher frequency standing modes are generated; although we find that convection does not continually drive the standing g-mode frequencies.
description: 22 pages, 14 figures, submitted to MNRAS
Post-earthquake solid waste management strategy (for the city of Vancouver and surrounding area)
Creators: name: Wojtarowicz, Margaret
Publisher: name: University of British Columbia
Year: 2009

description: The Lower Mainland of British Columbia faces a high risk of a devastating seismic event occurring at any moment. Such damaging earthquakes generate tremendous amounts of disaster debris, and present great challenges for the solid waste management system. Global experience with disasters has indicated that preplanning and mitigation are of substantial value in earthquake response, recovery and reconstruction. The current lack of such measures has extensive socio-economic and environmental repercussions, and grave solid waste management implications. Consequently, a strategy for the cleanup of all solid waste generated during an earthquake, as well as during the recovery stages, was developed for the Lower Mainland. The need for a post-earthquake municipal solid waste management strategy, and a separate strategy for disaster debris is identified. The main feature of the former is the strategy's dependence on the current solid waste management system. The main premise of the latter is the recognition of the similarity in waste characteristics and handling requirements between disaster debris and demolition, landclearing and construction waste. The proposed Post-Earthquake Solid Waste Management Plan (Plan) presents an Action Plan Procedure (Action Plan), recommends Preplanning Actions, and identifies Strategy Options. The Plan also acknowledges the necessity for finalizing an Operational Plan once an earthquake occurs and the damage is known. The Action Plan, which is independent of the magnitude and time frame of an earthquake event, provides a framework for developing the Operational Plan. The Preplanning Actions identify the tasks that should be undertaken prior to an earthquake occurrence, in order to facilitate the recovery effort. The Strategy Options Report (Report) provides a sample waste characterization scheme, an action prioritization scheme, various handling options, and a number of decision-making criteria. Furthermore, the Report proposes a series of procedures that address five damage severity scenarios. In conclusion, the proposed Plan confirms that earthquake related solid waste management issues must be addressed on a regional basis. Unconventional and alternative solid waste management methods should be researched and considered for utility in earthquake recovery. Narrow scope and prescribed methodology are advantageous to the preparation of a management plan.
Constructivism in unlikely places: how national identity influences Chinese and Russian behavior in areas of core interest and the Sino-Russian relationship
Creators: name: Ciotola, Louis John
Publisher: name: Maryland Shared Open Access Repository
Year: 2016

description: (M.S.) -- Towson University, 2015.
description: While realism provides an explanation for the nature of international relations within an anarchic arena, it sometimes falls short in explaining and predicting state behavior, including the foreign policy behavior of states with leadership of a realist orientation within their areas of core interest. Realism holds power as its key variable, proclaiming that states behave in ways so as to maximize their material capabilities in order to survive in an anarchic international setting. There is an additional variable, however, that must also be considered in order to effectively understand the foreign policy behavior of states with realist-oriented leadership. That variable, emphasized by the constructivist school of international relations, is national self identity. Through the examples of China and Russia, it is the purpose of this work to reinforce the value identity contributes alongside material capability both for explaining and predicting the foreign policy behavior of states with leadership of a realist inclination.
description: http://library.towson.edu/cdm/ref/collection/etd/id/46240
A novel multi-classifier information fusion based on Dempster-Shafer theory: application to vibration-based fault detection
Creators: name: Yaghoubi, Vahid
name: Cheng, Liangliang
name: Van Paepegem, Wim
name: Kersemans, Mathias
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Achieving a high prediction rate is a crucial task in fault detection. Although various classification procedures are available, none of them can give high accuracy in all applications. Therefore, in this paper, a novel multi-classifier fusion approach is developed to boost the performance of the individual classifiers. This is acquired by using Dempster-Shafer theory (DST). However, in cases with conflicting evidences, the DST may give counter-intuitive results. In this regard, a preprocessing technique based on a new metric is devised in order to measure and mitigate the conflict between the evidences. To evaluate and validate the effectiveness of the proposed approach, the method is applied to 15 benchmarks datasets from UCI and KEEL. Further, it is applied for classifying polycrystalline Nickel alloy first-stage turbine blades based on their broadband vibrational response. Through statistical analysis with different noise levels, and by comparing with four state-of-the-art fusion techniques, it is shown that that the proposed method improves the classification accuracy and outperforms the individual classifiers.
description: arXiv admin note: text overlap with arXiv:2007.08789
Magnetically limited X-ray filaments in young SNR
Creators: name: Pohl, M.
name: Yan, H.
name: Lazarian, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the damping of strong magnetic turbulence downstream of the forward shock of young supernova remnants (SNR). We find that strong magnetic fields, that have been produced by the streaming instability in the upstream region of the shock, or by other kinetic instabilities at the shock, will be efficiently reduced, so the region of enhanced magnetic field strength would typically have a thickness of the order l_d=(10^{16}-10^{17}) cm. The non-thermal X-ray filaments observed in young SNR are thus likely limited by the magnetic field and not by the energy losses of the radiating electrons. Consequently the thickness of the filaments would not be a measure of the magnetic field strength and claims of efficient cosmic-ray acceleration on account of a run-away streaming instability appear premature.
description: 11 pages, 1 figure, submitted to ApJ Letters
Entanglement, non-Hermiticity, and duality
Creators: name: Chen, Li-Mei
name: Chen, Shuai A.
name: Ye, Peng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Usually duality process keeps energy spectrum invariant. In this paper, we provide a duality, which keeps entanglement spectrum invariant, in order to diagnose quantum entanglement of non-Hermitian non-interacting fermionic systems. We limit our attention to non-Hermitian systems with a complete set of biorthonormal eigenvectors and an entirely real energy spectrum. The original system has a reduced density matrix $ρ_\mathrm{o}$ and the real space is partitioned via a projecting operator $\mathcal{R}_{\mathrm o}$. After dualization, we obtain a new reduced density matrix $ρ_{\mathrm{d}}$ and a new real space projector $\mathcal{R}_{\mathrm d}$. Remarkably, entanglement spectrum and entanglement entropy keep invariant. Inspired by the duality, we defined two types of non-Hermitian models, upon $\mathcal R_{\mathrm{o}}$ is given. In type-I exemplified by the ``non-reciprocal model'', there exists at least one duality such that $ρ_{\mathrm{d}}$ is Hermitian. In other words, entanglement information of type-I non-Hermitian models with a given $\mathcal{R}_{\mathrm{o}}$ is entirely controlled by Hermitian models with $\mathcal{R}_{\mathrm{d}}$. As a result, we are allowed to apply known results of Hermitian systems to efficiently obtain entanglement properties of type-I models. On the other hand, the duals of type-II models, exemplified by ``non-Hermitian Su-Schrieffer-Heeger model'', are always non-Hermitian. For the practical purpose, the duality provides a potentially \textit{efficient} computation route to entanglement of non-Hermitian systems. Via connecting different models, the duality also sheds lights on either trivial or nontrivial role of non-Hermiticity played in quantum entanglement, paving the way to potentially systematic classification and characterization of non-Hermitian systems from the entanglement perspective.
description: Accepted by SciPost Physics on Jun 24, 2021
Entanglement-assisted entanglement purification
Creators: name: Sàbat, Ferran Riera
name: Sekatski, Pavel
name: Pirker, Alexander
name: Dür, Wolfgang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The efficient generation of high-fidelity entangled states is the key element for long-distance quantum communication, quantum computation and other quantum technologies, and at the same time the most resource-consuming part in many schemes. We present a new class of entanglement-assisted entanglement purification protocols that can generate high-fidelity entanglement from noisy, finite-size ensembles with improved yield and fidelity as compared to previous approaches. The scheme utilizes high-dimensional auxiliary entanglement to perform entangling non-local measurements and determine the number and positions of errors in an ensemble in a controlled and efficient way, without disturbing the entanglement of good pairs. Our protocols can deal with arbitrary errors, but are best suited for few errors, and work particularly well for decay noise. Our methods are applicable to moderate sized ensembles, as will be important for near term quantum devices.
description: 5 pages, 4 figures (see also "Entanglement purification by counting and locating errors with entangling measurements" for a long version version with additional details and results.)
TRUST, MEMBERSHIP IN GROUPS AND HOUSEHOLD WELFARE: EVIDENCE FROM KWAZULU-NATAL, SOUTH AFRICA
Creators: name: Haddad, Lawrence James
name: Maluccio, John A.
name: Haddad, Lawrence James
name: Maluccio, John A.
Publisher: name: Unknown
Year: 2002
Subjects: Consumer/Household Economics

description: This paper explores the relationship between group membership and trust. Specifically, we examine (1) the importance of trust in the decision to join groups, (2) the subsequent ability of groups to generate trust, and (3) the influence of group membership and trust on a measure of well-being, per capita household income. We use longitudinal data from KwaZulu-Natal Province, South Africa, allowing us to control for potential simultaneity and measurement-error problems in the estimation. We disaggregate groups into financial and nonfinancial and “trust in people” by type of agent or actor. We can thus examine whether different types of trust are important for participating in different types of groups and whether different types of group participation are important for generating different types of trust. We find that (1) trust in local agents is an important determinant of membership in financial groups but not for membership in nonfinancial groups, (2) membership in both types of groups generates trust in nonlocal agents but not local agents, and (3) membership in financial and nonfinancial groups leads to higher well-being. The first two results suggest that financial groups serve a role in expanding the radius of trust, while the first and third results suggest a role for trust in improving well-being.
Cross-Correlation analysis of WMAP and EGRET in Wavelet Space
Creators: name: Liu, Xin
name: Zhang, Shuang Nan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We cross correlate the Wilkinson Microwave Anisotropy Probe (WMAP) first year data and the diffuse gamma-ray intensity maps from the Energetic Gamma Ray Experiment Telescope (EGRET) using spherical wavelet approaches. Correlations at 99.7% significance level have been detected, at scales around $15^{\circ}$ in the WMAP foreground cleaned W-band and Q-band maps, based on data from regions that are outside the most conservative WMAP foreground mask; no significant correlation is found with the Tegmark cleaned map. The detected correlation is most likely of Galactic origin, and thus can help us probing the origins of possible Galactic foreground residuals and ultimately removing them from measured microwave sky maps.
description: 4 pages, 7 figures; accepted for publication in ApJL
The effect of primordial non-Gaussianity on halo bias
Creators: name: Matarrese, Sabino
name: Verde, Licia
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It has long been known how to analytically relate the clustering properties of the collapsed structures (halos) to those of the underlying dark matter distribution for Gaussian initial conditions. Here we apply the same approach to physically motivated non-Gaussian models. The techniques we use were developed in the 1980s to deal with the clustering of peaks of non-Gaussian density fields. The description of the clustering of halos for non-Gaussian initial conditions has recently received renewed interest, motivated by the forthcoming large galaxy and cluster surveys. For inflationary-motivated non-Gaussianites, we find an analytic expression for the halo bias as a function of scale, mass and redshift, employing only the approximations of high-peaks and large separations.
description: 4 pages, 3 figures, submitted. Typos fixed, reference added, minor clarifications in the text
Carleman estimates and absence of embedded eigenvalues
Creators: name: Koch, Herbert
name: Tataru, Daniel
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35P05

description: Let L be a Schroedinger operator with potential W in L^{(n+1)/2}. We prove that there is no embedded eigenvalue. The main tool is an Lp Carleman type estimate, which builds on delicate dispersive estimates established in a previous paper. The arguments extend to variable coefficient operators with long range potentials and with gradient potentials.
description: 26 pages
Master-equation treatment of nonlinear optomechanical systems with optical loss
Creators: name: Qvarfort, Sofia
name: Vanner, Michael R.
name: Barker, P. F.
name: Bruschi, David Edward
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Open-system dynamics play a key role in the experimental and theoretical study of cavity optomechanical systems. In many cases, the quantum Langevin equations have enabled excellent models for optical decoherence, yet a master-equation approach to the fully nonlinear optomechanical Hamiltonian has thus far proven more elusive. To address this outstanding question and broaden the mathematical tool set available, we derive a solution to the Lindblad master equation that models optical decoherence for a system evolving with the nonlinear optomechanical Hamiltonian. The method combines a Lie-algebra solution to the unitary dynamics with a vectorization of the Lindblad equation, and we demonstrate its applicability by considering the preparation of optical cat states via the optomechanical nonlinearity in the presence of optical loss. Our results provide a direct way of analytically assessing the impact of optical decoherence on the optomechanical intracavity state.
description: Main text and references: 10 pages, Appendices: 12 pages, 2 figures
DETERMINANTS OF POVERTY IN MOZAMBIQUE: 1996-97
Creators: name: Datt, Gaurav
name: Simler, Kenneth R.
name: Mukherjee, Sanjukta
name: Dava, Gabriel
name: Datt, Gaurav
name: Simler, Kenneth R.
name: Mukherjee, Sanjukta
name: Dava, Gabriel
Publisher: name: Unknown
Year: 2000
Subjects: Food Security and Poverty

description: This report presents an analysis of the structural determinants of living standards and poverty in Mozambique, which is based on nationally-representative data from the first national household living standards survey since the end of the civil war: the Mozambique Inquérito Nacional aos Agregados Familiares Sobre As Condições de Vida (MIAF), or National Household Survey on Living Conditions. Poverty in Mozambique is predominantly a rural phenomenon and is pervasive, with over two-thirds of the population falling below the poverty line. The degree of regional variation of poverty within the country is striking. Poverty levels are highest in Sofala, Tete, and Inhambane Provinces, where over 80 percent of the population lives below the poverty line, and lowest in Maputo City (although, with a headcount of 48 percent, poverty is still high in the capital city). The poverty estimates indicate that even though Mozambique is recovering from the emergency situation of the civil war, and becoming more self-reliant for its basic needs, there remains a great deal of structural poverty in the country. Areas that stand out in particular are low levels of human capital, including low educational levels and the poor health of most of the population; low productivity in the agricultural sector, where most Mozambicans are employed; a weak physical infrastructure and poor access to basic services, including potable water, health facilities, transportation, communications, and markets; and high rates of fertility and corresponding high dependency ratios. The policy simulations that illustrate the impact that changes in the levels of determinants of poverty have on poverty levels allow us to identify six possible elements of a prospective poverty alleviation strategy for Mozambique. These include (1) increased investment in education, (2) sustained economic growth, (3) a sectoral pattern of growth favoring faster growth in the industrial and services sectors, (4) measures to raise agricultural productivity, (5) improved rural infrastructure, and (6) reducing fertility and dependency load within households. In conclusion, any meaningful poverty reduction strategy in Mozambique must give the highest priority to rural areas and must address these macro-level and household-level determinants of poverty in its policy formulations.
Domain Growth in Ising Systems with Quenched Disorder
Creators: name: Paul, Raja
name: Puri, Sanjay
name: Rieger, Heiko
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We present results from extensive Monte Carlo (MC) simulations of domain growth in ferromagnets and binary mixtures with quenched disorder. These are modeled by the "random-bond Ising model" and the "dilute Ising model" with either nonconserved (Glauber) spin-flip kinetics or conserved (Kawasaki) spin-exchange kinetics. In all cases, our MC results are consistent with power-law growth with an exponent $θ(T,ε)$ which depends on the quench temperature $T$ and the disorder amplitude $ε$. Such exponents arise naturally when the coarsening domains are trapped by energy barriers which grow logarithmically with the domain size. Our MC results show excellent agreement with the predicted dependence of $θ(T,ε)$.
description: 11 pages, 15 figures
Quintessential $α$-attractor inflation: forecasts for Stage IV galaxy surveys
Creators: name: Akrami, Yashar
name: Casas, Santiago
name: Deng, Senwen
name: Vardanyan, Valeri
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Single-field models of $α$-attractor quintessential inflation provide a unified picture of the two periods of early- and late-time cosmic acceleration, where both inflation and dark energy are described by a single scalar degree of freedom rolling down a runaway potential. These theoretically well-motivated models have distinct observational predictions that are in agreement with existing cosmological data. We show that the next generation of large-scale structure surveys, even when no other cosmological data sets are considered, will strongly constrain the parameter space of these models, and test them against the standard cosmological model and more conventional non-quintessential inflation. In particular, we expect $\mathcal{O}(10^{-5}\mathrm{-}10^{-4})$ constraints on the present values of the dark energy equation of state and its time derivative, $w_0$ and $w_a$. We also forecast more than one order of magnitude tighter constraints on the spectral index of primordial curvature perturbations $n_s$ compared to the expectations for the standard model. This demonstrates the powerful synergy between the upcoming large-scale structure probes of inflation and those aiming to measure the tensor-to-scalar ratio $r$ through the observation of $B$-mode polarization of the cosmic microwave background.
description: 34 pages, 14 figures. v2: Improved and published version; typos fixed, references and discussions added, figures 1 and 8 added
БУХОРО ХОНЛИГИДАГИ СУЛОЛАЛАР ТАРИХИ МАХАЛИЙ ВА ХОРИЖИЙ МАНБАЛАРДА ЎРГАНИЛИШИ
Creators: name: Жураев, Боходир
Publisher: name: Zenodo
Year: 2024

description: Бухоро хонлигининг XVI-XVIII аср ўрталаригача ижтимоий-иқтисодий ҳаёти, илм-фан ривожи, меъморчилик ва санъат тараққиёти бўйича қилинган тадқиқотлар тарихшунослик нуқтаи назаридан ўрганилди ҳамда тадқиқот натижалари юзасидан таклиф ва тавсиялар ишлаб чиқилган.
The Subaru/XMM-Newton Deep Survey (SXDS) -VII. Clustering Segregation with Ultraviolet and Optical Luminosities of Lyman-Break Galaxies at z~3
Creators: name: Yoshida, Makiko
name: Shimasaku, Kazuhiro
name: Ouchi, Masami
name: Sekiguchi, Kazuhiro
name: Furusawa, Hisanori
name: Okamura, Sadanori
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate clustering properties of Lyman-break galaxies (LBGs) at z~3 based on deep multi-waveband imaging data from optical to near-infrared wavelengths in the Subaru/XMM-Newton Deep Field. The LBGs are selected by U-V and V-z' colors in one contiguous area of 561 arcmin^2 down to z'=25.5. We study the dependence of the clustering strength on rest-frame UV and optical magnitudes, which can be indicators of star formation rate and stellar mass, respectively. The correlation length is found to be a strong function of both UV and optical magnitudes with brighter galaxies being more clustered than faint ones in both cases. Furthermore, the correlation length is dependent on a combination of UV and optical magnitudes in the sense that galaxies bright in optical magnitude have large correlation lengths irrespective of UV magnitude, while galaxies faint in optical magnitude have correlation lengths decreasing with decreasing UV brightness. These results suggest that galaxies with large stellar masses always belong to massive halos in which they can have various star formation rates, while galaxies with small stellar masses reside in less massive halos only if they have low star formation rates. There appears to be an upper limit to the stellar mass and the star formation rate which is determined by the mass of hosting dark halos.
description: 16 pages, 15 figures, accepted for publication in ApJ
Microlensing of Circumstellar Envelopes. III. Line profiles from stellar winds in homologous expansion
Creators: name: Hendry, M. A.
name: Ignace, R.
name: Bryce, H. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper examines line profile evolution due to the linear expansion of circumstellar material obsverved during a microlensing event. This work extends our previous papers on emission line profile evolution from radial and azimuthal flow during point mass lens events and fold caustic crossings. Both ''flavours'' of microlensing were shown to provide effective diagnostics of bulk motion in circumstellar envelopes. In this work a different genre of flow is studied, namely linear homologous expansion, for both point mass lenses and fold caustic crossings. Linear expansion is of particular relevance to the effects of microlensing on supernovae at cosmological distances. We derive line profiles and equivalent widths for the illustrative cases of pure resonance and pure recombination lines, modelled under the Sobolev approximation. The efficacy of microlensing as a diagnostic probe of the stellar environs is demonstrated and discussed.
description: 16 pages, to appear in Astronomy & Astrophysics
Transverse Deformation of Parton Distributions and Transversity Decomposition of Angular Momentum
Creators: name: Burkardt, Matthias
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Impact parameter dependent parton distributions are transversely distorted when one considers transversely polarized nucleons and/or quarks. This provides a physical mechanism for the T-odd Sivers effect in semi-inclusive deep-inelastic scattering. The transverse distortion can also be related to Ji's sum rule for the angular momentum carried by the quarks. The distortion of chirally odd impact parameter dependent parton distributions is related to chirally odd GPDs. This result is used to provide a decomposition of the quark angular momentum w.r.t. quarks of definite transversity. Chirally odd GPDs can thus be used to determine the correlation between quark spin and quark angular momentum in unpolarized nucleons. Based on the transverse distortion, we also suggest a qualitative connection between chirally odd GPDs and the Boer-Mulders effect.
description: 12 pages, 1 figure, version to appear in PRD