cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dark matter halo response to the disk growth
Creators: name: Choi, Jun-Hwan
name: Lu, Yu
name: Mo, H. J.
name: Weinberg, Martin D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider the sensitivity of the circular-orbit adiabatic contraction approximation to the baryon condensation rate and the orbital structure of dark matter halos in the $Λ$CDM paradigm. Using one-dimensional hydrodynamic simulations including the dark matter halo mass accretion history and gas cooling, we demonstrate that the adiabatic approximation is approximately valid even though halos and disks may assemble simultaneously. We further demonstrate the validity of the simple approximation for $Λ$CDM halos with isotropic velocity distributions using three-dimensional N-body simulations. This result is easily understood: an isotropic velocity distribution in a cuspy halo requires more circular orbits than radial orbits. Conversely, the approximation is poor in the extreme case of a radial orbit halo. It overestimates the response a core dark matter halo, where radial orbit fraction is larger. Because no astronomically relevant models are dominated by low-angular momentum orbits in the vicinity of the disk and the growth time scale is never shorter than a dynamical time, we conclude that the adiabatic contraction approximation is useful in modeling the response of dark matter halos to the growth of a disk.
description: 7 pages, 6 figures, accepted for publication in MNRAS
The relative effect of clipping, neighbours, and fertilization on the population dynamics of Lupinus arcticus (Family Fabaceae)
Creators: name: Graham, Stepanie Ann
Publisher: name: University of British Columbia
Year: 2009

description: A demographic study was conducted in 1991 and 1992 on replicated field populations of Lupinus arcticus, near Kluane Lake, Yukon. The relative effects of herbivory, neighbours, and soil fertility level were assessed using a factorial experiment of +/- clipping, +/- neighbour removal, and +/- fertilizer (NPK). The main population experiment monitored the dynamics of leaves, however, data on reproduction, survival, and size were also collected from the permanent quadrats. Clipping reduced leaf cohort survivorship, total leaf density, and the incidence of disease on leaves, but resulted in an increased standing crop of leaves. Removing neighbours increased the percent cover of L. arcticus and decreased total leaf mortality. Fertilizing increased the incidence of disease on leaves, and reduce the standing crop of leaves. Significant three-way interactions between treatments affected the plasticity of petiole length distributions for L. arcticus. Between-year differences in the responses to the treatments were also detected, particularly for reproductive investment and output in L. arcticus. Although a number of significant responses to treatments were detected, nevertheless, the overall tendency was for a lack of response, especially pertaining to leaf population dynamics. This low response to the treatments imposed is consistent with Grime’s (1979) arguments that plants growing in low productivity, infrequently disturbed habitats (i.e. stressful sensu Grime 1979) should show little response to short-term changes in local environmental conditions.
The Hot Mitochondrion Paradox: Reconciling Theory and Experiment
Creators: name: Fahimi, Peyman
name: Matta, Cherif F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Experiments by Chretien and co-workers suggest that mitochondria are 10oC hotter than their surroundings. Steady-state theoretical estimates place this difference at a maximum of 10^-5 oC. This million-fold disagreement may be called the hot mitochondrion paradox. It is suggested that every proton translocated via ATP synthase sparks a picosecond temperature-difference spike of the order of magnitude measured by Chretien et al. Time-averaging of these spikes recovers the theoretical value. Further, a temporal and spatial superposition of the fluorescence intensity of a very large number of molecular thermometer molecules in the sample can give the appearance of a steady signal. The inner mitochondrial membrane appears to be flanked by temperature differences fluctuating in time and along the membrane s surface, with hot and cold spots as ultrashort temperature spikes.
One qubit as a Universal Approximant
Creators: name: Pérez-Salinas, Adrián
name: López-Núñez, David
name: García-Sáez, Artur
name: Forn-Díaz, P.
name: Latorre, José I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A single-qubit circuit can approximate any bounded complex function stored in the degrees of freedom defining its quantum gates. The single-qubit approximant presented in this work is operated through a series of gates that take as their parameterization the independent variable of the target function and an additional set of adjustable parameters. The independent variable is re-uploaded in every gate while the parameters are optimized for each target function. The output state of this quantum circuit becomes more accurate as the number of re-uploadings of the independent variable increases, i. e., as more layers of gates parameterized with the independent variable are applied. In this work, we provide two different proofs of this claim related to both the Fourier series and the Universal Approximation Theorem for Neural Networks, and we benchmark both methods against their classical counterparts. We further implement a single-qubit approximant in a real superconducting qubit device, demonstrating how the ability to describe a set of functions improves with the depth of the quantum circuit. This work shows the robustness of the re-uploading technique on Quantum Machine Learning.
description: 10 pages + 6 (appendix); 7 figures + 4 (appendix) Changes made for publication. The text has been changed to improve clarity. A stronger relationship between the model in this paper and Machine Learning was stated. Some content has been moved to appendix. Acknowledgements added
GERONTE DELIVERABLE D7.1: project personalised visual identity
Creators: name: Bacles, CFE
Publisher: name: Zenodo
Year: 2021
Subjects: visual identity, graphic charter, H2020 project deliverable, communication

description: This deliverable describes the design of a project personalized visual identity and graphic charter for the GERONTE project carried. It is primarily for internal use, with the graphic charter made available to GERONTE consortium participants on a dedicated online collaborative workspace
 and used for all project communication activities whether internal or external. Deliverable D7.1 is part of work-package 7 communication, dissemination and exploitation . ts main purpose is to provide a personalised and meaningful identity to the project that becomes a major tool that will help the GERONTE consortium partners inform the general public and specific stakeholders alike within a common coherent framework.
More about the Wilsonian analysis on the pionless NEFT
Creators: name: Harada, Koji
name: Kubo, Hirofumi
name: Ninomiya, Atsushi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We extend our Wilsonian renormalization group (RG) analysis on the pionless nuclear effective theory (NEFT) in the two-nucleon sector in two ways; on the one hand, (1) we enlarge the space of operators up to including those of $\mathcal{O}(p^4)$ in the $S$ waves, and, on the other hand, (2) we consider the RG flows in higher partial waves ($P$ and $D$ waves). In the larger space calculations, we find, in addition to nontrivial fixed points, two ``fixed lines'' and a ``fixed surface'' which are related to marginal operators. In the higher partial wave calculations, we find similar phase structures to that of the $S$ waves, but there are \textit{two} relevant directions in the $P$ waves at the nontrivial fixed points and \textit{three} in the $D$ waves. We explain the physical meaning of the $P$-wave phase structure by explicitly calculating the low-energy scattering amplitude. We also discuss the relation between the Legendre flow equation which we employ and the RG equation by Birse, McGovern, and Richardson, and possible implementation of Power Divergence Subtraction (PDS) in higher partial waves.
description: 39 pages, 5 figures, the final version
Universal terms of the entanglement entropy in a static closed universe
Creators: name: Soldati, Rodolfo
name: Menicucci, L. S.
name: Yokomizo, N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Subdominant contributions to the entanglement entropy of quantum fields include logarithmic corrections to the area law characterized by universal coefficients that are independent of the ultraviolet regulator and capture detailed information on the geometry around the entangling surface. We determine two universal coefficients of the entanglement entropy for a massive scalar field in a static closed universe $\mathbb{R} \times \mathbb{S}^3$ perturbatively and verify the results numerically. The first coefficient describes a well known generic correction to the area law independent of the geometry of the entangling surface and background. The second coefficient describes a curvature-dependent universal term with a nontrivial dependence on the intrinsic and extrinsic geometries of the entangling surface and curvature of the background. The numerical calculations confirm the analytical results to a high accuracy. The first and second universal coefficients are determined numerically with a relative error with respect to the analytical values of the orders $10^{-4}$ and $10^{-2}$, respectively.
description: 17 pages, 6 figures. Published version
Needs of parents of university students on the autism spectrum
Creators: name: Moore, Thomas
Publisher: name: No Publisher Supplied
Year: 2021

description: As the number of students on the autism spectrum rises, educational services and social support for this population continue to develop and expand. Parents of those diagnosed with Autism Spectrum Disorders (ASD) receive information, guidance, and support as they work closely with K-12 teachers, therapists, medical professionals, and social service agencies to assist their children as they grow and progress to adolescence and young adulthood. These supports for parents typically end abruptly as their ASD children turn 18 and become legal adults. Many higher education institutions provide programming for ASD students to assist them academically and socially as they transition to and attend college. However, little to no information, guidance or support are provided by universities to parents of ASD college students. Further, limited research is available to determine the needs of parents during this transition. Nine parents of new and continuing university ASD students were interviewed to ascertain parental needs during the transition process as their children enrolled in and attended college, and explored their perceptions of tools and programming colleges can provide to support them. Utilizing the lenses of Separation-Individuation Theory and Transactional Coping Theory, this project identified transitional and coping strategies utilized by parents of ASD students and ways to provide appropriate support for them. The following research questions were examined: 1.What are the experiences of parents of students on the autism spectrum as their children transition to and attend college?2.What do parents of university ASD students report are systemic barriers which hinder them from coping with the transition and attendance of their child at college?3.What supports might help parents of ASD students explore their new role and adjust effectively as their children transition to and attend college?Results indicated the emergence of seven major themes, including the transition of ASD students to college as an emotional experience for parents, parental tendencies to hover over their adolescents, excessive use of “I” and “We” rather than “Him” or “He” when referring to their children, lack of communication for parents, students, high school guidance counselors and university faculty and staff with information pertaining to ASD college students, lack of timeliness and awareness of student and parental college needs, and parental solutions such as fixing communication and responding to parental wisdom. Further research with a broader parent population is needed to determine additional supports colleges can provide for parents of ASD college students during the transition of their children to college.
Escaping the Brownian stalkers
Creators: name: Weiss, Alexander
Publisher: name: arXiv
Year: 2008
Subjects: subject: Trading and Market Microstructure (q-fin.TR)
subject: Probability (math.PR)
subject: Pricing of Securities (q-fin.PR)
subject: FOS: Economics and business
subject: FOS: Mathematics
subject: 60J65 60K10

description: We propose a simple model for the behaviour of longterm investors on a stock market, consisting of three particles, which represent the current price of the stock and the opinion of the buyers, respectively sellers, about the right trading price. As time evolves, both groups of traders update their opinions with respect to the current price. The update speed is controled by a parameter $γ$, the price process is described by a geometric Brownian motion. We consider the stability of the market in terms of the distance between the buyers' and sellers' opinion, and prove that the distance process is recurrent/transient in dependence on $γ$.
description: AMS-LaTeX v2.0, 21 pages with 8 eps-figures, uses psfrag.sty
Normal Transport Behavior in Finite One-Dimensional Chaotic Quantum Systems
Creators: name: Steinigeweg, Robin
name: Gemmer, Jochen
name: Michel, Mathias
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the transport of energy, magnetization, etc. in several finite one-dimensional (1D) quantum systems only by solving the corresponding time-dependent Schroedinger equation. We explicitly renounce on any other transport-analysis technique. Varying model parameters we find a sharp transition from non-normal to normal transport and a transition from integrability to chaos, i.e., from Poissonian to Wigner-like level statistics. These transitions always appear in conjunction with each other. We investigate some rather abstract design models and a (locally perturbed) Heisenberg spin chain.
description: 7 pages, 6 figures
Calcinosis cutis associated with intravenous injections of calcium chloride and calcium gluconate: A case report
Creators: name: Pi Ti Palungwachira, Hitoshi Yaguchi
Publisher: name: Faculty of Medicine,Srinakharinwirot University
Year: 2000
Subjects: calcinosis cutis, calcium chloride, calcium gluconate

description: 3, 6, Journal of Medicine and Health Sciences
Electronic structure and magnetism in UGa2: DFT+DMFT approach
Creators: name: Chatterjee, Banhi
name: Kolorenc, Jindrich
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The debate whether uranium 5f electrons are closer to being localized or itinerant in the ferromagnetic compound UGa2 is not yet fully settled. The experimentally determined magnetic moments are large, approximately 3 Bohr magnetons, suggesting the localized character of the 5f electrons. In the same time, one can identify signs of itinerant as well as localized behavior in various spectroscopic observations. The band theory, employing local exchange-correlation functionals, is biased toward itinerant 5f states and severely underestimates the moments. Using material-specific dynamical mean-field theory (DMFT), we probe how a less approximate description of electron-electron correlations improves the picture. We present two variants of the theory: starting either from spin-restricted (LDA) or spin-polarized (LSDA) band structure. We show that the L(S)DA+DMFT method can accurately describe the magnetic moments in UGa2 as long as the exchange interaction between the uranium 6d and 5f electrons is preserved by a judicious choice of the spin-polarized double-counting correction. We discuss the computed electronic structure in relation to photoemission experiments and show how the correlations reduce the Sommerfeld coefficient of the electronic specific heat by shifting the 5f states slightly away from the Fermi level.
description: 15 pages, 12 figures, 4 tables, added an appendix illustrating convergence with respect to Fock-space size
Assessment of the Impact of Heart Failure on Household Economic Well-being: Background and Methods- Kannada Version
Creators: name: Harikrishnan, Sivadasanpillai
name: Panniyammakal Jeemon
name: Ganapathi, Sanjay
name: Reethu Salim
name: Bahl, Ajay
name: Katageri, Anand
name: Animesh Mishra
name: Anoop George Alex
name: Bhavesh Roy
name: Bishav Mohan
name: Hasit Joshi
name: Jabir Abdullakutty
name: Paul, Justin
name: Rai, Manish
name: Cholenahally Nanjappa Manjunath
name: Negi, Prakash C
name: Durgaprasad Rajasekhar
name: Rishi Sethi
name: Satyanarayan Routray
name: Radhakrishnan Shanmugasundaram
name: Sumanta Shekhar Padhi
name: Syam Sunder Reddy
Publisher: name: figshare
Year: 2021
Subjects: subject: 110201 Cardiology (incl. Cardiovascular Diseases)
subject: FOS: Clinical medicine

description: Background and rationale: Heart failure (HF), which is an emerging public health issue, adversely affects the strained health system in India. The potential adverse impact of HF on the economic well-being of affected individuals and their families is narrated in various anecdotal reports. Further, HF is known to push the affected individuals and their dependents into poverty. However, there is limited research quantifying how HF impacts the economic well-being of households from the low and middle-income countries. Methods: We describe the methods of a detailed economic impact assessment of HF at the household level in India. The economic impact study in HF is initiated across 20 centres in India. The selected centres represent different regions in India stratified based on the prevailing stage of epidemiological transition levels (ETLs). We will collect data from 1800 patients with acute decompensated HF and within 6-15 months of follow-up from the time of initial admission. The data that we intend to collect will consist of a) household healthcare expenditure including out-of-pocket expenditure, b) financing mechanisms used by households and (c) the impoverishing effects of health expenditures including distress financing and catastrophic health expenditure. Trained staff at each centre will collect relevant data by using a validated and structured interview schedule. The study will have 80% power, after accounting for five percent non-response rate, to test eight percent difference in primary outcome (proportion of families under distress financing) between different ETLs. Impact: The results from the study will help policy makers in understanding the micro-economic impact of HF in India and aid in allocation of appropriate resources for prevention and control of HF.
СОЦИАЛЬНАЯ ЗАЩИТА — ВАЖНАЯ ЧАСТЬ НАШЕГО НАЦИОНАЛЬНОГО МИРОВОЗЗРЕНИЯ
Creators: name: Набиева, Аноргул
name: Муталипова, Зухра
Publisher: name: Academic Scientific Research
Year: 2024
Subjects: Социальная политика
бедность
институт
социум
доход
уровень бедности
уровень доходов населения
социальная защита
уровень жизни населения
сокращение бедности

description: Статья посвящена актуальной на сегодняшний день проблеме социальной политики государства.  Целью статьи является анализ изучения политики регулирования доходов и социальной защиты населения. В статье затрагивается тема доходов населения как важнейшего показателя благосостояния общества. Выделяются и описываются характерные особенности социальной защиты населения. Особое внимание уделено понятию эффективной социальной защищенности. В данной статье предпринята попытка раскрыть основные причины необходимости проведения демократических и экономических реформ в существующей системе социальной защиты. В статье обобщен новый статистический материал по исследуемой теме.
Gravitationally Collapsing Shells in (2+1) Dimensions
Creators: name: Mann, R. B.
name: Oh, J. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study gravitationally collapsing models of pressureless dust, fluids with pressure, and the generalized Chaplygin gas (GCG) shell in (2+1)-dimensional spacetimes. Various collapse scenarios are investigated under a variety of the background configurations such as anti-de Sitter(AdS) black hole, de Sitter (dS) space, flat and AdS space with a conical deficit. As with the case of a disk of dust, we find that the collapse of a dust shell coincides with the Oppenheimer-Snyder type collapse to a black hole provided the initial density is sufficiently large. We also find -- for all types of shell -- that collapse to a naked singularity is possible under a broad variety of initial conditions. For shells with pressure this singularity can occur for a finite radius of the shell. We also find that GCG shells exhibit diverse collapse scenarios, which can be easily demonstrated by an effective potential analysis.
description: 27 pages, Latex, 11 figures, typos corrected, references added, minor amendments in introduction and conclusion introdu
When hot water freezes before cold
Creators: name: Katz, J. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: General Physics (physics.gen-ph)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: I suggest that the origin of the Mpemba effect (the freezing of hot water before cold) is freezing-point depression by solutes, either gaseous or solid, whose solubility decreases with increasing temperature so that they are removed when water is heated. They are concentrated ahead of the freezing front by zone refining in water that has not been heated, reduce the temperature of the freezing front, and thereby reduce the temperature gradient and heat flux, slowing the progress of the front. I present a simple calculation of this effect, and suggest experiments to test this hypothesis.
description: 7 pages, 1 figure
The Horizontal Branch of NGC 1851: Constraints on the Cluster Subpopulations
Creators: name: Salaris, M.
name: Cassisi, S.
name: Pietrinferni, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the distribution of stars along the Horizontal Branch of the Galactic globular cluster NGC1851, to shed light on the progeny of the two distinct Subgiant Branch populations harbored by this cluster. On the basis of detailed synthetic Horizontal Branch modelling, we conclude that the two subpopulations are distributed in different regions of the observed Horizontal Branch: the evolved stars belonging to the bright Subgiant branch component are confined in the red portion of the observed sequence, whereas the ones belonging to the faint Subgiant branch component are distributed from the blue to the red, populating also the RR Lyrae instability strip. Our simulations strongly suggest that it is not possible to reproduce the observations assuming that the two subpopulations lose the same amount of mass along the Red Giant Branch. We warmly encourage empirical estimates of mass loss rates in Red Giant stars belonging to this cluster.
description: 12 pages, including 2 figures. Accepted for publication in ApJL
Entanglement-screening by nonlinear resonances
Creators: name: Garcia-Mata, Ignacio
name: Carvalho, Andre R. R.
name: Mintert, Florian
name: Buchleitner, Andreas
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that nonlinear resonances in a classically mixed phase space allow to define generic, strongly entangled multi-partite quantum states. The robustness of their multipartite entanglement increases with the particle number, i.e. in the semiclassical limit, for those classes of diffusive noise which assist the quantum-classical transition.
description: 4 pages, 3 figures. PRL, in press
Supersymmetry and Unconventional Quantum Hall Effect in Graphene
Creators: name: Ezawa, Motohiko
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a unified description of the quantum Hall effect in graphene on the basis of the 8-component Dirac Hamiltonian and the supersymmetric (SUSY) quantum mechanics. It is remarkable that the zero-energy state emerges because the Zeeman splitting is exactly as large as the Landau level separation, as implies that the SUSY is a good symmetry. For nonzero energy states, the up-spin state and the down-spin state form a supermultiplet possessing the spin SU(2) symmetry. We extend the Dirac Hamiltonian to include two indices $j_{\uparrow}$ and $j_{\downarrow}$, characterized by the dispersion relation $E(p) \propto p^{j_{\uparrow}+j_{\downarrow}}$ and the Berry phase $π(j_{\uparrow}-j_{\downarrow})$. The quantized Hall conductivity is shown to be $σ_{xy}=\pm (2n+j_{\uparrow}+j_{\downarrow}) 2e^{2}/h$.
description: 5 pages, 2 figures
Bandwidth control of forbidden transmission gaps in compound structures with subwavelength slits
Creators: name: Skigin, Diana C.
name: Loui, Hung
name: Popovic, Zoya
name: Kuester, Edward F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Physics (physics.class-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Phase resonances in transmission compound structures with subwavelength slits produce sharp dips in the transmission response. For all equal slits, the wavelengths of these sharp transmission minima can be varied by changing the width or the length of all the slits. In this paper we show that the width of the dip, i.e., the frequency range of minimum transmittance, can be controlled by making at least one slit different from the rest within a compound unit cell. In particular, we investigate the effect that a change in the dielectric filling, or in the length of a single slit produces in the transmission response. We also analyze the scan angle behavior of these structures by means of band diagrams, and compare them with previous results for all-equal slit structures.
description: 16 pages, 5 figures, submitted to Phys. Rev. E
Openings to a lake: historical approaches to Sumas Lake, British Columbia
Creators: name: Cameron, Laura Jean
Publisher: name: University of British Columbia
Year: 2009

description: In order to explore the dynamic between history and place, I consider four methodological issues within the historical space of Sumas Lake, B.C., a large lake that was drained in the 1920’s. The first “Opening” reflects on the connection between historical and technological frontiers, while critiquing my creation of the attached HyperCard stack “Disappearing A Lake: A Meditation on Method and Mosquitos.” The stack documents the creative process of history-making, allowing the “reader” to review and record comments, to see examples of cartography and photography, to hear oral interviews and to read selections of narrative tradition either inside or outside the logic and context of an essay format. The written document flows from the stack. “Listening For Pleasure” discusses the process of oral history as it relates to the negotiated and contested space of the Sumas Lake commons. Diving into archives from Victoria to Ottawa, “Margins and Mosquitos” recycles written records to explore federal, provincial and local involvements with a flood lake. “Memory Device” moves into the archive of land and waterscapes, looking for connections between place and history, mindful of both Native oral tradition and written historical accounts of the lake. Interactive history is located not only in the interface between people and computers, but also in the process of making oral history and in the creative transformation of archival documents. Most importantly, interactive history is alive in the links people forge between stories and the actual places around them.
Networks from gene expression time series: characterization of correlation patterns
Creators: name: Remondini, D.
name: Neretti, N.
name: Sedivy, J. M.
name: Franceschi, C.
name: Milanesi, L.
name: Tieri, P.
name: Castellani, G. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: This paper describes characteristic features of networks reconstructed from gene expression time series data. Several null models are considered in order to discriminate between informations embedded in the network that are related to real data, and features that are due to the method used for network reconstruction (time correlation).
description: 10 pages, 3 BMP figures, 1 Table. To appear in Int. J. Bif. Chaos, July 2007, Volume 17, Issue 7
Resistive and rectifying effects of pulling gold atoms at thiol-gold nano-contacts
Creators: name: Batista, Ronaldo J. C.
name: Ordejón, Pablo
name: Chacham, Hélio
name: Artacho, Emilio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate, by means of first-principles calculations, structural and transport properties of junctions made of symmetric dithiolated molecules placed between Au electrodes. As the electrodes are pulled apart, we find that it becomes energetically favorable that Au atoms migrate to positions between the electrode surface and thiol terminations, with junction structures alternating between symmetric and asymmetric. As a result, the calculated $\emph{IV}$ curves alternate between rectifying and non-rectifying behaviors as the electrodes are pulled apart, which is consistent with recent experimental results.
Additional file 1 of MHC class I links with severe pathogenicity in C57BL/6N mice infected with SARS-CoV-2/BMA8
Creators: name: Qin, Tian
name: Shen, Beilei
name: Li, Entao
name: Jin, Song
name: Luo, Rongbo
name: Zhang, Yiming
name: Qi, Jing
name: Deng, Xiuwen
name: Shi, Zhuangzhuang
name: Wang, Tiecheng
name: Zhou, Yifa
name: Gao, Yuwei
Publisher: name: figshare
Year: 2023
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1 TableS1. The list of RT-qPCR primers used in this study. Fig.S1Acquisition of SARS-CoV-2 mouse-adapted strain BMA8. Fig.S2The effects of BMA8 strain on pathogenicity of infected mice. Fig.S3 The NP expression in lung tissues of infected mice. Fig. S4 The effects of BMA8 strain infection on the expression of inflammation-related genes in lung tissues of C57BL/6N and BALB/c mice at 0 dpi and 3 dpi, including Ifnb1, Cxcl10, Ccl2, Il6, Tnf, Ifit3, Irf7, Gbp5 and Isg15.Fig. S5 The expression levels of ACE2 protein in lung and kidney tissues of C57BL/6N and BALB/c mice; β-actin was used as a loading control. Fig. S6 Effects of H-2Kb mAbs on body weight and survival rate of mice infected with BMA8 strain. Fig. S7 Effects of H-2Kb mAbs on pathogenicity of BMA8 strain in C57BL/6N mice. Fig. S8 The expression of NP in lung tissues of infected mice. Fig. S9 The effects of BMA8 strain infection on the expression of inflammation-related genes in lung tissues of C57BL/6N and BALB/c mice with or without H-2Kb mAbs treatment, including Ifnb1, Cxcl9, Cxcl10, Ccl2, Ccl3, Ccl5, Il6, Tnf, Ifit3, Mx1 and Irf7.
Propuesta de mejora basada en el modelo de gestión por procesos en una empresa MYPE de transporte de carga pesada de la ciudad de Arequipa
Creators: name: Cuadros Barreda, Samantha Paula
Publisher: name: Universidad Católica de Santa María
Year: 2024
Subjects: Gestión por procesos
Transporte por carretera
Control de procesos.

description: La presente investigación se realizó a una empresa de transporte de carga pesada de la ciudad de Arequipa. El objetivo es desarrollar una propuesta de mejora basada en el modelo de gestión por procesos. Asimismo, antes de llevar a cabo la investigación se creía que los procesos eran ineficientes, por esa razón, con el propósito de entender la situación actual de la empresa, se llevó a cabo un análisis utilizando: entrevista, mapa de procesos, observación documental, observación presente, diagrama de flujo y diagrama de análisis de los procesos. Logrando detectar los siguientes problemas: inconsistencias en guía de remisión, recargas de combustible no planificadas, viajes no registrados en aplicación y paradas de los vehículos no planificadas. Considerando los procesos críticos detectados, se sugirió una mejora fundamentada en la Gestión por Procesos. Para ello, se propone desarrollar un proceso de control y seguimiento por GPS, proceso de control de combustible, plan de capacitación y programa de mantenimiento para los vehículos. Asimismo, se calculó que la implementación de estas mejoras requeriría una inversión de S/ 11,689.89. Además, se obtuvo un beneficio costo de la propuesta de 1.24, por lo tanto, se asume que debe ser considerada la implementación de la propuesta para generar beneficios para la empresa.
Unified Performance Analysis of Reconfigurable Intelligent Surface Empowered Free Space Optical Communications
Creators: name: Chapala, Vinay Kumar
name: Zafaruddin, S. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Reconfigurable intelligent surface (RIS) is an excellent use case for line-of-sight (LOS) based technologies such as free-space optical (FSO) communications. In this paper, we analyze the performance of RIS-empowered FSO (RISE-FSO) systems by unifying Fisher-Snedecor (F), Gamma-Gamma (GG), and Malaga (M) distributions for atmospheric turbulence with zero-boresight pointing errors over deterministic as well as random path-loss in foggy conditions with heterodyne detection (HD) and intensity modulation/direct detection (IM/DD) methods. By deriving the probability density function (PDF) and cumulative distribution function (CDF) of the direct-link (DL) with the statistical effect of atmospheric turbulence, pointing errors, and random fog, we develop exact expressions of PDF and CDF of the resultant channel for the RISE-FSO system. Using the derived statistical results, we present exact expressions of outage probability, average bit-error-rate (BER), ergodic capacity, and moments of signal-to-noise ratio (SNR) for both DL-FSO and RISE-FSO systems. We also develop an asymptotic analysis of the outage probability and average BER and derive the diversity order of the considered systems. We validate the analytical expressions using Monte-Carlo simulations and demonstrate the performance scaling of the FSO system with the number of RIS elements for various turbulence channels, detection techniques, and weather conditions.
description: 17 pages, 7 figures, 4 tables, Accepted for publication in the IEEE Transactions on Communications, Dec 2021
Long term object drift in the ocean with tide and wind
Creators: name: Ailliot, Pierre
name: Frenod, Emmanuel
name: Monbet, Valerie
Publisher: name: arXiv
Year: 2007
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, we propose a new method to forecast the drift of objects in near coastal ocean on a period of several weeks. The proposed approach consists in estimating the probability of events linked to the drift using Monte Carlo simulations. It couples an averaging method which permits to decrease the computational cost and a statistical method in order to take into account the variability of meteorological loading factors.
The Latin American Farmer
Creators: name: Hopkins, John A.
name: Hopkins, John A.
Publisher: name: Unknown
Year: 1969
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Labor and Human Capital
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Production Economics
subject: Teaching/Communication/Extension/Profession

description: "Latin America," as used in this study, includes the Western Hemisphere except for Canada, the United States, its dependencies, and the Commonwealth of Puerto Rico; and certain minor dependencies of other countries, such as St. Pierre and Miquelon, and of course, the polar areas. General references to Latin America in the report are to all of the Latin American countries and dependencies. Specific references, however, are usually to either the group of 19 or 23 republics listed in app. table 1.
Azimuthal Correlations in p-p collisions
Creators: name: Cuautle, E.
name: Dominguez, I.
name: Paic, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report the analysis of experimental azimuthal correlations measured by STAR in p-p collisions at $\sqrt{s_{NN}}$ = 200 GeV. We conclude that for a fit of data using Pythia event generator we need to include two values of $k_{T}$.
description: 4 page, 3 figures. Prepared for X Mexican Workshop on Particles and Fields. Morelia Mich. Nov 7-12, 2005
Reexamination of local spin polarization beyond global equilibrium in relativistic heavy ion collisions
Creators: name: Yi, Cong
name: Pu, Shi
name: Yang, Di-Lun
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study local spin polarization in the relativistic hydrodynamic model. Generalizing the Wigner functions previously obtained from chiral kinetic theory by Y. Hidaka et al. [Phys. Rev. D 97, 016004 (2018)] to the massive case, we present the possible contributions up to the order of $\hbar$ from thermal vorticity, shear viscous tensor, other terms associated with the temperature and chemical-potential gradients, and electromagnetic fields to the local spin polarization. We then implement the (3+1)-dimensional viscous hydrodynamic model to study the spin polarizations from these sources with a small chemical potential and ignorance of electromagnetic fields by adopting an equation of state different from those in other recent studies. Although the shear correction alone upon the local polarization results in a sign and azimuthal-angle dependence more consistent with experimental observations, as also discovered in other recent studies, it is mostly suppressed by the contributions from thermal vorticity and other terms that yield an opposite trend. It is found that the total local spin polarization can be very sensitive to the equation of states, the ratio of shear viscosity to entropy density, and the freeze-out temperature.
description: 22 pages, 5 figures; matched the journal version, typos for T in Fig.3 corrected
Estrategia de marketing para la empresa Carnes San Telmo S.A.S
Creators: name: Barragan Nivia, Camila Andrea
name: Céspedes Díaz, Jorge Alejandro
Publisher: name: Universidad Externado de Colombia
Year: 2023
Subjects: subject: Plan de marketing
subject: Carne de ternera
subject: Procesador de carne
subject: Mercadeo
subject: Posicionamiento de marca

description: En Colombia, la carne de ternera es esencial en la dieta y cultura culinaria. San Telmo, empresa destacada en producción y comercialización de carne de calidad, enfrenta desafíos y oportunidades en un mercado que valora la sostenibilidad y el bienestar animal. La investigación analiza su cadena de suministro, prácticas agrícolas, políticas de responsabilidad social y la respuesta del consumidor, buscando fortalecer su posición competitiva.
description: In Colombia, veal is essential in the diet and culinary culture. San Telmo, a prominent company in quality veal production and commercialization, faces challenges and opportunities in a market that values sustainability and animal welfare. The research analyzes its supply chain, agricultural practices, social responsibility policies, and consumer response, aiming to strengthen its competitive position.
Assessment of the Impact of Heart Failure on Household Economic Well-being: Background and Methods
Creators: name: Harikrishnan, Sivadasanpillai
name: Panniyammakal Jeemon
name: Ganapathi, Sanjay
name: Reethu Salim
name: Bahl, Ajay
name: Katageri, Anand
name: Animesh Mishra
name: Anoop George Alex
name: Bhavesh Roy
name: Bishav Mohan
name: Hasit Joshi
name: Jabir Abdullakutty
name: Paul, Justin
name: Rai, Manish
name: Cholenahally Nanjappa Manjunath
name: Negi, Prakash C
name: Durgaprasad Rajasekhar
name: Rishi Sethi
name: Satyanarayan Routray
name: Radhakrishnan Shanmugasundaram
name: Sumanta Shekhar Padhi
name: Syam Sunder Reddy
Publisher: name: figshare
Year: 2021
Subjects: subject: 110201 Cardiology (incl. Cardiovascular Diseases)
subject: FOS: Clinical medicine

description: Background and rationale: Heart failure (HF), which is an emerging public health issue, adversely affects the strained health system in India. The potential adverse impact of HF on the economic well-being of affected individuals and their families is narrated in various anecdotal reports. Further, HF is known to push the affected individuals and their dependents into poverty. However, there is limited research quantifying how HF impacts the economic well-being of households from the low and middle-income countries. Methods: We describe the methods of a detailed economic impact assessment of HF at the household level in India. The economic impact study in HF is initiated across 20 centres in India. The selected centres represent different regions in India stratified based on the prevailing stage of epidemiological transition levels (ETLs). We will collect data from 1800 patients with acute decompensated HF and within 6-15 months of follow-up from the time of initial admission. The data that we intend to collect will consist of a) household healthcare expenditure including out-of-pocket expenditure, b) financing mechanisms used by households and (c) the impoverishing effects of health expenditures including distress financing and catastrophic health expenditure. Trained staff at each centre will collect relevant data by using a validated and structured interview schedule. The study will have 80% power, after accounting for five percent non-response rate, to test eight percent difference in primary outcome (proportion of families under distress financing) between different ETLs. Impact: The results from the study will help policy makers in understanding the micro-economic impact of HF in India and aid in allocation of appropriate resources for prevention and control of HF.
Exceptional Non-Hermitian Phases in Disordered Quantum Wires
Creators: name: Michen, Benjamin
name: Micallo, Tommaso
name: Budich, Jan Carl
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate the occurrence of nodal non-Hermitian (NH) phases featuring exceptional degeneracies in chiral-symmetric disordered quantum wires, where NH physics naturally arises from the self-energy in a disorder-averaged Green's function description. Notably, we find that at least two nodal points in the clean Hermitian system are required for exceptional points to be effectively stabilized upon adding disorder. We identify and study experimental signatures of our theoretical findings both in the spectral functions and in mesoscopic quantum transport properties of the considered systems. Our results are quantitatively corroborated and exemplified by numerically exact simulations on a microscopic lattice model. The proposed setting provides a conceptually minimal framework for the realization and study of topological NH phases in quantum many-body systems.
Plan de marketing Industria Nacional de Metros Bustos Barco S.A.S - Inalmet
Creators: name: González Barrera, Camilo Andrés
name: Joya Hernández, Camilo
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Mercadeo - Casos
subject: Relaciones con los clientes - Aspectos socioeconómicos
subject: Consumidores - Estudios de caso
subject: Inalmet
subject: Fertilizante
subject: Agroindustrial
subject: Agrovet
subject: Consultoría

description: Inalmet es una compañía que en la actualidad cuenta con 4 líneas de negocio (realmente son 3), con un total de 2.736 clientes, de los cuales 1.732 pertenecen a la línea Agrovet que es la de mayor peso. Los 1.004 clientes restantes están repartidos en las otras líneas de negocio, pero cuando se revisan estas cantidades de clientes vs. las ventas, encontramos que solo 40 clientes de la línea Agrovet realizan el 70% del total de las ventas, lo que nos deja con 2.696 clientes que no aportan mucho, no tienen una recurrencia de compra o incluso, en los históricos no han registrado compras desde hace más de 10 años. Se realizó un plan de mercadeo basado en una Consultoría holística basada en los 4 diamantes de transformación y gestión, Access, entendimiento de las 4 áreas críticas de la compañía a través de visitas, reuniones y entrevistas directas con el empresario.
description: Inalmet is a company that currently has 4 business lines (there are actually 3), with a total of 2,736 clients, of which 1,732 belong to the Agrovet line, which is the most important. The remaining 1,004 clients are distributed in the other lines of business, but when these numbers of clients are reviewed vs. sales, we found that only 40 customers of the Agrovet line make 70% of the total sales, which leaves us with 2,696 customers who do not contribute much, do not have a repeat purchase or even, in the historical records, have not recorded purchases for more than 10 years. A marketing plan was carried out based on a holistic Consulting based on the 4 diamonds of transformation and management, Access, understanding of the 4 critical areas of the company through visits, meetings and direct interviews with the businessman.
Random-walk approximation to vacuum cocycles
Creators: name: Belton, Alexander C. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 81S25 (Primary) 46L07, 46L53, 46N50, 47D06 (Secondary)

description: Quantum random walks are constructed on operator spaces with the aid of matrix-space lifting, a type of ampliation intermediate between those provided by spatial and ultraweak tensor products. Using a form of Wiener-Ito decomposition, a Donsker-type theorem is proved, showing that these walks, after suitable scaling, converge in a strong sense to vacuum cocycles: these are vacuum-adapted processes which are Feller cocycles in the sense of Lindsay and Wills. This is employed to give a new proof of the existence of *-homomorphic quantum stochastic dilations for completely positive contraction semigroups on von Neumann algebras and separable unital C* algebras. The analogous approximation result is also established within the standard quantum stochastic framework, using the link between the two types of adaptedness.
description: 32 pages; v4: further strengthening of the main theorems; a new example; some re-writing and re-organisation