cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exoplanetary searches with gravitational microlensing: polarization issues
Creators: name: Zakharov, A. F.
name: Ingrosso, G.
name: De Paolis, F.
name: Nucita, A. A.
name: Strafella, F.
name: Novati, S. Calchi
name: Jetzer, Ph.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: There are different methods for finding exoplanets such as radial spectral shifts, astrometrical measurements, transits, timing etc. Gravitational microlensing (including pixel-lensing) is among the most promising techniques with the potentiality of detecting Earth-like planets at distances about a few astronomical units from their host star or near the so-called snow line with a temperature in the range $0-100^0$ C on a solid surface of an exoplanet. We emphasize the importance of polarization measurements which can help to resolve degeneracies in theoretical models. In particular, the polarization angle could give additional information about the relative position of the lens with respect to the source.
description: 17 pages, 3 figures, presented at the IX Serbian Conference on Spectral Lines in Astrophysics and the COST Action MP1104 "Polarization as a tool to study the Solar System and beyond", accepted for publication in Advances in Space Research
THE ASSESSMENT OF KNOWLEDGE, ATTITUDE AND INTENTION TO USE CERVICAL CANCER SCREENING AND ITS COLLERATES AMONG ARMY WOMEN IN ETHIOPIA
Creators: name: BELACHEW KAHASAY
Publisher: name: Zenodo
Year: 2016

description: Background: Cervical cancer is a global public health problem & it is the 4 th leading cause cancer morbidity and mortality. Almost 70% of the global burden failed in developing counties. In Ethiopia cervical cancer is the 2 nd leading cause of cancer mortality. Cervical cancer screening is effective prevention method can avert >80% morbidity and mortality. However, globally a billion of women missed this opportunity. Poor utilization of cervical cancer screening was the prominent problem in developing countries. In Ethiopia cervical cancer screening coverage was 0.6%. Low level of knowledge, negative attitude and low intention towards cervical cancer screening were among many obstacles that hider the successfulness of cervical cancer screening on which this study aimed. Objectives: This study were measure level of knowledge, determine attitude, assess intention to use cervical cancer screening and identify correlates of intention among army women of Ethiopi
Prevalence and associated factors of work related injury among Saudi Star Agro Industry workers in Gambella Region, Ethiopia, 2014
Creators: name: Demeke Berhanu
Publisher: name: Zenodo
Year: 2014

description: Introduction: Work injury is an important cause of morbidity and mortality, much of this work injury burden can be found in industry required heavy manual work such as plant and manufacture, agriculture and fishers. Agricultural injury is consistently cited as one of the most hazardous industry in the nations especially in developing country. Because of unsafe working environment, lack of awareness and limited trained professionals

Objective: To assess the prevalence and associated factors of work related injury among Saudi star agro industry workers, Gambella region, south west Ethiopia

Method: An institutional based cross-sectional study design was conducted the presented study in Gambella region, Abobo woreda from February -June 2014 on 449 randomly select workers after stratification by working department. A work environment observation checklist, factory clinical records and a structured questionnaire based interview were used. Descriptive, bivariate and Multivariate logistic regression analysis were conducted using SPSS version 16.
Life course trajectories of precursor phenotypes for non-communicable diseases: a scoping review protocol
Creators: name: McBain, Katie
name: Kasjan, Samuel
name: Dumuid, Dorothea
name: Clifford, Susan
name: Olds, Timothy
name: Wake, Melissa
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Public Health
subject: Epidemiology
subject: Medicine and Health Sciences
subject: epidmeiology
subject: phenotype
subject: scoping review
subject: trajectory

description: NCDs account for a large proportion of global disease burden and mortality. Many NCDs represent the endpoints of life course functional and physiological phenotype trajectories. Knowledge of these trajectories may assist in recognising individuals at risk of developing disease and identifying optimal points across the life course to intervene to prevent or slow the onset of disease. However, trajectories of intermediate phenotypes rarely cover the full life course and to date publications have usually focused on just one intermediate phenotype or body system, giving a highly fragmented evidence base. This scoping review will consider published trajectories from high income countries of NCD precursor phenotypes directly on the path to the following leading causes of global disease burden in adults aged 75 and above: cardiovascular disease, diabetes, chronic obstructive pulmonary disease, accidental falls, chronic kidney disease, hearing loss, vision loss, and Alzheimer’s Disease. Trajectories will include a minimum of three timepoints spanning at least five years for early life studies (ending by age twenty) or at least ten years for adult studies. Embase, Medline and PubMed will be searched for published life course trajectories of phenotypes. Searches will be limited to English language. Using Covidence, two independent reviewers will assess studies against the eligibility criteria for inclusion and then extract data using a standardised form. We will first consider trajectories developed from longitudinal data and, if insufficient evidence is found, we will then consider trajectories developed from pooled cross-sectional data. Details of included studies and trajectories will be grouped according to the type of trajectory, then summarised in tabular form and figures, accompanied by a narrative summary. Synthesising life course trajectories across multiple phenotypes may assist in identifying optimal, coordinated timing for interventions aimed at preventing disease.
A Bilinear Programming Approach for Multiagent Planning
Creators: name: Petrik, Marek
name: Zilberstein, Shlomo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Multiagent planning and coordination problems are common and known to be computationally hard. We show that a wide range of two-agent problems can be formulated as bilinear programs. We present a successive approximation algorithm that significantly outperforms the coverage set algorithm, which is the state-of-the-art method for this class of multiagent problems. Because the algorithm is formulated for bilinear programs, it is more general and simpler to implement. The new algorithm can be terminated at any time and-unlike the coverage set algorithm-it facilitates the derivation of a useful online performance bound. It is also much more efficient, on average reducing the computation time of the optimal solution by about four orders of magnitude. Finally, we introduce an automatic dimensionality reduction method that improves the effectiveness of the algorithm, extending its applicability to new domains and providing a new way to analyze a subclass of bilinear programs.
Cellequs: creating an haplo-bank of equine mesenchymal stem cells characterized by the major histocompatibility complex
Creators: name: Cequier Soler, Alina
name: Fuente Franco, Sara
name: Cons Claver, Carmen
name: Serrano Pastor, Maria Belén
name: Bernad Roche, Elvira
name: Vitoria Moraiz, Arantza
name: Romero Lasheras, Antonio
name: Vázquez Bringas, Francisco José
name: Zaragoza Fernández, Pilar
name: Barrachina Porcar, Laura
name: Rodellar Penella, Clementina
Publisher: name: Zenodo
Year: 2024

description: Horses are important as patients and translational models, so there is an increasing demand to establish mesenchymal stem cells (MSC) biobanks for research and therapy. Allogeneic cell therapy presents advantages over autologous therapy, but immune recognition of foreign cells can compromise his safety and effectiveness. The immune recognition of MSCs can vary depending on the matching/mismatching between donor and patient for the major histocompatibility complex (MHC), and on the MSC immune profile.

We aim at providing well-characterized allogeneic MSCs that can be MHC-matched with equine patients. To do this, we are creating CELLEQUS, a bank of equine MSC derived from donors homozygous for the most common MHC-haplotypes and characterised by their immune profile.

To recruit MHC-matched donors, we first determined the most frequent MHC-haplotypes in the predominant equine breeds in Spain, using a validated panel of 10 intra-MHC microsatellites. The most common MHC-haplotypes were HapPRE10 (26%) and HapPRE11 (8%) in Purebred Spanish (PRE, n=326), HapPRA02 (23.8%) and COR42 (9.5%) in Purebred Arabian (PRA, n=165), HapPRE06 (9%) and HapPRE09 (9%) in Hispano-Arabian (HA, n=41), COR95 (16%) and HapPRE73 (13.6%) in Lusitano (PSL, n=132). Second, we recruited homozygous horses for the most frequent haplotypes as MSC donors (n=8). MSCs were isolated from bone marrow, characterized by their immunophenotype (CD90, CD105, CD44, CD45, CD11, MHC-I, MHC-II; flow cytometry) and gene expression analysis (MHC-I, MHC-II, IL6, COX2; RT-qPCR). MHC-I expression was lower in MSCs from HapPRE10 homozygotes, which might add advantages to their allogeneic use. MHC-II expression was variable but overall low regardless of the haplotype, while donors with the same haplotype can exhibit very different immunomodulatory profiles (COX2 and IL6), indicating that not all homozygous horses are equally suitable as donors. By offering a repository of MHC-matched MSCs,

CELLEQUS Bank provides foundational resources for advancing veterinary regenerative medicine, encompassing research, future commercialization, and clinical advancement. CELLEQUS contributes paving the way for improved allogeneic MSC treatments by serving as a proof-of-concept that haplo-banks can be created in different animal species, both for research and clinical purposes. Furthermore, under the pivotal concept of One Medicine, knowledge on veterinary and human haplo-banks can be exchanged to advance their use in both species.
Proton radius puzzle and quantum gravity at the Fermi scale
Creators: name: Onofrio, Roberto
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We show how the "proton radius puzzle" emerging from the measurement of the Lamb shift in muonic hydrogen may be solved by means of a binding energy contribution due to an effective Yukawian gravitational potential related to charged weak interactions. The residual discrepancy from the experimental result should be mainly attributable to the need for the experimental determination of the gravitational radius of the proton. The absence of an analogous contribution in the Lamb shift of electronic hydrogen should imply the existence of generation-dependent interactions, corroborating previous proposals. Muonic hydrogen plays a crucial role to test possible scenarios for a gravitoweak unification, with weak interactions seen as manifestations of quantum gravity effects at the Fermi scale.
Efficient Informative Sensing using Multiple Robots
Creators: name: Singh, Amarjeet
name: Krause, Andreas
name: Guestrin, Carlos
name: Kaiser, William J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The need for efficient monitoring of spatio-temporal dynamics in large environmental applications, such as the water quality monitoring in rivers and lakes, motivates the use of robotic sensors in order to achieve sufficient spatial coverage. Typically, these robots have bounded resources, such as limited battery or limited amounts of time to obtain measurements. Thus, careful coordination of their paths is required in order to maximize the amount of information collected, while respecting the resource constraints. In this paper, we present an efficient approach for near-optimally solving the NP-hard optimization problem of planning such informative paths. In particular, we first develop eSIP (efficient Single-robot Informative Path planning), an approximation algorithm for optimizing the path of a single robot. Hereby, we use a Gaussian Process to model the underlying phenomenon, and use the mutual information between the visited locations and remainder of the space to quantify the amount of information collected. We prove that the mutual information collected using paths obtained by using eSIP is close to the information obtained by an optimal solution. We then provide a general technique, sequential allocation, which can be used to extend any single robot planning algorithm, such as eSIP, for the multi-robot problem. This procedure approximately generalizes any guarantees for the single-robot problem to the multi-robot case. We extensively evaluate the effectiveness of our approach on several experiments performed in-field for two important environmental sensing applications, lake and river monitoring, and simulation experiments performed using several real world sensor network data sets.
Effect of migration in a diffusion model for template coexistence in protocells
Creators: name: Fontanari, Jose F.
name: Serva, Maurizio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: The compartmentalization of distinct templates in protocells and the exchange of templates between them (migration) are key elements of a modern scenario for prebiotic evolution. Here we use the diffusion approximation of population genetics to study analytically the steady-state properties of such prebiotic scenario. The coexistence of distinct template types inside a protocell is achieved by a selective pressure at the protocell level (group selection) favoring protocells with a mixed template composition. In the degenerate case, where the templates have the same replication rate, we find that a vanishingly small migration rate suffices to eliminate the segregation effect of random drift and so to promote coexistence. In the non-degenerate case, a small migration rate greatly boosts coexistence as compared with the situation where there is no migration. However, increase of the migration rate beyond a critical value leads to the complete dominance of the more efficient template type (homogeneous regime). In this case, we find a continuous phase transition separating the homogeneous and the coexistence regimes, with the order parameter vanishing linearly with the distance to the transition point.
Farm Population by Race, Tenure, and Economic Scale of Farming, 1966 and 1970
Creators: name: Banks, Vera J.
name: Beale, Calvin L.
name: Banks, Vera J.
name: Beale, Calvin L.
Publisher: name: Unknown
Year: 1972
Subjects: subject: Farm Management
subject: Financial Economics
subject: Farm population
subject: race
subject: tenure status
subject: economic class
subject: population distribution
subject: population growth

description: The U. S. farm population in 1966 and 1970 is examined in terms of race, tenure, and economic class, with the operator and nonoperator populations separately identified. In both years, the great majority of all farm people resided in the same household as the farm operator. Only about a tenth of the farm population lived in rent-free dwelling units on farms. Negroes and other racial minorities on farms were disproportionately of nonoperator status. Most farm residents lived on farms operated by a full or part owner rather than a tenant or manager, although there were some differences by race and operator status. Despite an overall decline of 15 percent in the farm population during 1966-70, population growth occurred on farms with annual sales of $20,000 or more. Farm population declined most rapidly in the South during the period. This decline is associated with the heavier rates of population loss among Negro farm residents, of whom about 90 percent are in the Southern States.
Breaking the Ice: Russian and Chinese Sharp Power in the Interstate System
Creators: name: Baker, Laurel
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: subject: Arctic
subject: Hybrid warfare
subject: Gray-zone
subject: Interstate
subject: Sharp Power
subject: Russia
subject: China

description: This study identifies two actors, China and Russia, and investigates their relationship through the lens of sharp power––that which is less pugnacious than hard power, but more coercive than soft power, and undermines faith in or the function of democratic processes and institutions. Specifically, sharp power is one method through which states can express national attitudes within the interstate system. Sharp power is a useful theoretical framework on two fronts. First, it aids scholars in gleaning the motivations behind how Russia and China jointly and separately interface with conceptions of “order.” Second, it helps scholars and analysts to discern the robustness of Sino-Russian cooperation and identify areas of competition. The two lines of thought are synthesized in how China’s and Russia’s use of sharp power in the interstate system reveals strategic convergence or dissonance. That is, Russia’s and China’s bilateral approaches to each other are informed by how they conceive of their status within and adherence to the interstate order. To that end, this thesis addresses the question, “To what extent are the Chinese and Russian states converging on a mutual set of coercive instruments in multilateral organizations, and what threat, if any, does the Sino-Russian relationship pose to the current world order?” The following investigation hypothesizes that the sharp power framework elucidates nuances regarding how states interface with notions of order, and therefore lends insights into the Sino-Russian relationship that are not easily gleaned from the facts on the ground. In substantiating this hypothesis, the thesis covers the character of sharp power instruments, how they can be deployed in the interstate context, Russian and Chinese approaches to order (as informed by sharp power usage in multilateral forums), what these insights tell scholars about the nature of their relationship, how these dynamics play out in a key security theater––the Arctic––and possible responses from Western actors. It posits two main conclusions: (1) China is a more “responsible” player with deeper stakes in the interstate system than Russia; (2) the Sino-Russian relationship is limited primarily by a lack of coherence in their respective approaches to order and each’s status within it. Nestled in this conclusion is the assertion that the prevailing conceptualization of the “liberal international order” in political science literature risks conflating the states’ motivations, resulting in possible misdiagnosis and mal-prescription. A more accurate depiction of this order is as a highly heterogeneous and primarily legal framework, indicating that scholars need more refined analytical instruments to distinguish between illegitimate power projection and legitimate interest or presence.
آثار وانعكاسات سياسات الدعم الحكومية على المؤسسات الصغيرة والمتوسطة في الجزائر
Creators: name: Khaled, Gachi
name: Gachi Youcef
Publisher: name: figshare
Year: 2020
Subjects: subject: 150304 Entrepreneurship
subject: FOS: Economics and business

description: تتناول هذه الورقة البحثية انعكاسات وآثار سياسات الدعم التي توفرها الحكومة الجزائرية على المؤسسات الصغيرة والمتوسطة، إذ يتم تناول أهم الهيئات المكرّسة لترقية وتطوير هذا النوع من المؤسسات، وذلك من خلال ما توفره من مساعدة مالية أو فنية للشباب المقبل على الإستثمار من خلال إنشاء مؤسسة صغيرة أو متوسطة، فمن خلال هذه الورقة البحثية توصلنا أنه رغم سياسات الدعم الكبيرة التي توليها الحكومة من خلال الهيئات المكرسة لذلك وما توفره من حوافز مالية و جبائية ومساعدة فنية إلا أن ذلك لم يسهم بشكل كبير في زيادة انتشار وتطور المؤسسات الصغيرة والمتوسطة سواء من حيث العدد أو من حيث التوزيع الجغرافي على مناطق الوطن.
DEVELOPMENT OF CDCI-SHINE, AN R-BASED WEB APPLICATION FOR THE ANALYSIS OF RESULTS FROM THE CENTRAL DOGMA CONCEPT INVENTORY (CDCI)
Creators: name: Fisk, Nic
name: Snyder, Christopher
name: Newman, Dina
name: Wright, L. Kate
Publisher: name: Zenodo
Year: 2015
Subjects: DBER
Education
Biology
Central Dogma
Informatics

description: Poster from the Rochester Academy of Science Fall 2015 Scientific Papers Day held Saturday, November 7, 2015, whose abstracts were published on their website.
Abstract: 
We have recently developed and tested a 23-question assessment instrument designed to
evaluate student understanding of essential concepts of the Central Dogma of Molecular
Biology, called the Central Dogma Concept Inventory (CDCI). The CDCI instrument has been
rigorously tested with more than 1,700 undergraduate beta-testers. It uses a multiple-select
format in order to circumvent many of the problems common to a forced-choice tool (e.g.
students using test-taking strategies to correctly guess correct answers) and provide greater
insight into student thinking. However, analysis and scoring was labor intensive, complex, and
needed to be performed locally, which would not be practical if the tool were adopted widely. To
remedy this problem, we are developing a web-application to perform rigorous and varied
statistical analyses in R that do not rely on user knowledge of programming or computational
statistics. The web-application, CDCI-SHINE, will allow users to upload CDCI data and quickly
produce meaningful and easy-to-interpret figures of class performance. For example, instructors
could look at their class's performance on each concept in order to better tailor their coverage of
topics, or they could compare pre and post test results in order to evaluate the effect of a new
pedagogical intervention. In the future, the web-based CDCI-SHINE may be able to be applied
to other concept assessment instruments as well.
Automated Reasoning in Modal and Description Logics via SAT Encoding: the Case Study of K(m)/ALC-Satisfiability
Creators: name: Sebastiani, Roberto
name: Vescovi, Michele
Publisher: name: arXiv
Year: 2014
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In the last two decades, modal and description logics have been applied to numerous areas of computer science, including knowledge representation, formal verification, database theory, distributed computing and, more recently, semantic web and ontologies. For this reason, the problem of automated reasoning in modal and description logics has been thoroughly investigated. In particular, many approaches have been proposed for efficiently handling the satisfiability of the core normal modal logic K(m), and of its notational variant, the description logic ALC. Although simple in structure, K(m)/ALC is computationally very hard to reason on, its satisfiability being PSPACE-complete. In this paper we start exploring the idea of performing automated reasoning tasks in modal and description logics by encoding them into SAT, so that to be handled by state-of-the-art SAT tools; as with most previous approaches, we begin our investigation from the satisfiability in K(m). We propose an efficient encoding, and we test it on an extensive set of benchmarks, comparing the approach with the main state-of-the-art tools available. Although the encoding is necessarily worst-case exponential, from our experiments we notice that, in practice, this approach can handle most or all the problems which are at the reach of the other approaches, with performances which are comparable with, or even better than, those of the current state-of-the-art tools.
Evolving library discovery: 10 directions
Creators: name: Dempsey, Lorcan
Publisher: name: Zenodo
Year: 2023
Subjects: Discovery
library discovery
library collections
collections
inside out collection
facilitated collection

description: Library discovery layers are now mature, constructed from commodity systems and data. However, if one thinks about discovery practice and requirements there are many areas that remain underserved. This presentation discusses 10 gaps in how we think about discovery, and suggest some steps that would help address them.
Collective dynamics effect transient subdiffusion of inert tracers in gel networks
Creators: name: Godec, Aljaz
name: Bauer, Maximilian
name: Metzler, Ralf
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Based on extensive Brownian dynamics simulations we study the thermally driven motion of a tracer bead in a cross-linked, dynamic gel network in the limit when the tracer bead's size is of the same size or even larger than the equilibrium mesh size of the gel. The analysis of long individual trajectories of the tracer bead demonstrates the existence of pronounced transient anomalous diffusion, accompanied by a drastic slow-down of the gel-bead relaxation dynamics. From the time averaged mean squared displacement and the van Hove cross-correlation function we elucidate the many-body origin of the non-Brownian tracer bead dynamics. Our results shed new light on the ongoing debate over the physical origin of sterical tracer interactions with structured environments.
description: 5 pages, 4 figures, RevTeX
Learning Bayesian Network Equivalence Classes with Ant Colony Optimization
Creators: name: Daly, Rónán
name: Shen, Qiang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Bayesian networks are a useful tool in the representation of uncertain knowledge. This paper proposes a new algorithm called ACO-E, to learn the structure of a Bayesian network. It does this by conducting a search through the space of equivalence classes of Bayesian networks using Ant Colony Optimization (ACO). To this end, two novel extensions of traditional ACO techniques are proposed and implemented. Firstly, multiple types of moves are allowed. Secondly, moves can be given in terms of indices that are not based on construction graph nodes. The results of testing show that ACO-E performs better than a greedy search and other state-of-the-art and metaheuristic algorithms whilst searching in the space of equivalence classes.
Open-System Dynamics of Entanglement
Creators: name: Aolita, Leandro
name: de Melo, Fernando
name: Davidovich, Luiz
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: One of the greatest challenges in quantum information processing is the coherent control over quantum systems with an ever increasing number of particles. Within this endeavor, the harnessing of many-body entanglement against the effects of the environment is a pressing issue. Besides being an important concept from a fundamental standpoint, entanglement is recognized as a crucial resource for performance enhancements over classical methods. Understanding and controlling many-body entanglement in open systems may have implications in quantum computing, quantum simulations, secure quantum communication, quantum metrology, our understanding of the quantum-to-classical transition, and other important questions of quantum foundations. Here we present an overview of recent theoretical and experimental efforts to underpin the dynamics of entanglement in open quantum systems. Entanglement is taken as a dynamic quantity, and we survey how it evolves due to the interaction of the entangled system with its surroundings. We analyze several scenarios, corresponding to different families of states and environments, which render a diversity of dynamical behaviors. Contrary to single-particle quantities, that typically vanish only asymptotically in time, entanglement may disappear at a finite time. Moreover, important classes of entanglement show an exponential decay with the system size when subject to local noise, posing yet another threat to the already challenging scaling of quantum technologies. Results for the local and global noise cases are summarized. Robustness-enhancement techniques, scaling laws, statistical and geometrical aspects of multipartite-entanglement decay are also reviewed; all in order to give a broad picture of entanglement dynamics in open quantum systems addressed to both theorists and experimentalists inside and outside the field of quantum information.
description: 76 pages, 32 figures. Long-overdue review article. Preliminary version. Comments are very welcome
Fresnel diffraction patterns as accelerating beams
Creators: name: Zhang, Yiqi
name: Belić, Milivoj R.
name: Zheng, Huaibin
name: Wu, Zhenkun
name: Li, Yuanyuan
name: Lu, Keqing
name: Zhang, Yanpeng
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate that beams originating from Fresnel diffraction patterns are self-accelerating in free space. In addition to accelerating and self-healing, they also exhibit parabolic deceleration property, which is in stark contrast to other accelerating beams. We find that the trajectory of Fresnel paraxial accelerating beams is similar to that of nonparaxial Weber beams. Decelerating and accelerating regions are separated by a critical propagation distance, at which no acceleration is present. During deceleration, the Fresnel diffraction beams undergo self-smoothing, in which oscillations of the diffracted waves gradually focus and smooth out at the critical distance.
Multi-hadron final states in RPV supersymmetric models with extra matters
Creators: name: Asano, Masaki
name: Sakurai, Kazuki
name: Yanagida, Tsutomu T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The gluino mass has been constrained by various search channels at the LHC experiments and the recent analyses are even sensitive to the cases where gluinos decay to quarks at the end of the decay chains through the baryonic RPV operator. We argue that introduction of extra matters, which is partly motivated by cancelling anomalies of discrete R symmetry, may help to relax the gluino mass limit when the RPV hadronic gluino decays are considered. In the scenarios where the extra matter states appear in the gluino decay chains, the number of decay products increases and each jet becomes soft, making it difficult to distinguish the signal from backgrounds. We investigate the sensitivity of existing analyses to such scenarios and demonstrate that the gluino mass limit can be relaxed if the mass spectrum reconciles the sensitivities of high $p_T$ jet searches and large jet multiplicity searches.
description: 5 pages, 6 figures
title: Digitalization: Prices of Goods and Services
Creators: name: Chu, Vivian
name: Dahlhaus, Tatjana
name: Hajzler, Christopher
Publisher: name: Bank of Canada
Year: 2023

description: This paper outlines and assesses the various channels through which digitalization can affect prices of goods and services.
description: Cette étude décrit et analyse les divers canaux par lesquels la numérisation peut influer sur les prix des biens et services.
Learning to Reach Agreement in a Continuous Ultimatum Game
Creators: name: de Jong, Steven
name: Uyttendaele, Simon
name: Tuyls, Karl
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: It is well-known that acting in an individually rational manner, according to the principles of classical game theory, may lead to sub-optimal solutions in a class of problems named social dilemmas. In contrast, humans generally do not have much difficulty with social dilemmas, as they are able to balance personal benefit and group benefit. As agents in multi-agent systems are regularly confronted with social dilemmas, for instance in tasks such as resource allocation, these agents may benefit from the inclusion of mechanisms thought to facilitate human fairness. Although many of such mechanisms have already been implemented in a multi-agent systems context, their application is usually limited to rather abstract social dilemmas with a discrete set of available strategies (usually two). Given that many real-world examples of social dilemmas are actually continuous in nature, we extend this previous work to more general dilemmas, in which agents operate in a continuous strategy space. The social dilemma under study here is the well-known Ultimatum Game, in which an optimal solution is achieved if agents agree on a common strategy. We investigate whether a scale-free interaction network facilitates agents to reach agreement, especially in the presence of fixed-strategy agents that represent a desired (e.g. human) outcome. Moreover, we study the influence of rewiring in the interaction network. The agents are equipped with continuous-action learning automata and play a large number of random pairwise games in order to establish a common strategy. From our experiments, we may conclude that results obtained in discrete-strategy games can be generalized to continuous-strategy games to a certain extent: a scale-free interaction network structure allows agents to achieve agreement on a common strategy, and rewiring in the interaction network greatly enhances the agents ability to reach agreement. However, it also becomes clear that some alternative mechanisms, such as reputation and volunteering, have many subtleties involved and do not have convincing beneficial effects in the continuous case.
Supporting Level 1 Physics & Astronomy Undergraduates at the University of Glasgow
Creators: name: Casey, Morag M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: It is generally accepted that the retention and associated completion rates for first year classes are an area of concern for UK universities, and physics and astronomy classes at the University of Glasgow are exception. Classes are often large and, as result, student integration on academic and social levels can be difficult to achieve; some students perceive a lack of personal interest and support in what can be a stressful transition from secondary to tertiary education. In order to address these issues, the author has been employed in a new departmental post, Director of Learning Support for First Year. The remit of this post is primarily the implementation of an improved personal contact and academic monitoring and support strategy for first year undergraduates. The purpose of this paper is to present the ways in which it is hoped that the role of Director of Learning Support will positively impact on aspects of the forthcoming academic year.
description: arXiv admin note: text overlap with arXiv:0911.2733
Government's Role in Pricing Fluid Milk in the United States
Creators: name: Mathis, A. G.
name: Friedly, D. E.
name: Levine, S. G.,
name: Mathis, A. G.
name: Friedly, D. E.
name: Levine, S. G.,
Publisher: name: Unknown
Year: 1972
Subjects: subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: Marketing
subject: FOS: Economics and business
subject: Government programs
subject: Federal market orders
subject: State government
subject: marketing practices
subject: market orders
subject: milk marketing

description: In 1971, the Federal marketing order system regulated 81 percent of the Nation's fluid milk sales, compared with over 50 percent in 1955. During 1971, 141,318 producers delivered 67.9 billion pounds of milk to Federal order handlers—more than 60 percent of all milk sold to plants and dealers. The farm value of this milk was $4.2 billion. Thirty-seven States administer milk distribution in one or more of the following ways: Establish minimum prices at the farm, wholesale, or retail levels; regulate trade practices; or permit milk promotional programs financed through producer or handler assessment or appropriation.
Topological superconductivity and unconventional pairing in oxide interfaces
Creators: name: Scheurer, Mathias S.
name: Schmalian, Jörg
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: To pinpoint the microscopic mechanism for superconductivity has proven to be one of the most outstanding challenges in the physics of correlated quantum matter. Thus far, the most direct evidence for an electronic pairing mechanism is the observation of a new symmetry of the order-parameter, as done in the cuprate high-temperature superconductors. Like distinctions based on the symmetry of a locally defined order-parameter, global, topological invariants allow for a sharp discrimination between states of matter that cannot be transformed into each other adiabatically. Here we propose an unconventional pairing state for the electron fluid in two-dimensional oxide interfaces and establish a direct link to the emergence of nontrivial topological invariants. Topological superconductivity and Majorana edge states can then be used to detect the microscopic origin for superconductivity. In addition, we show that also the density wave states that compete with superconductivity sensitively depend on the nature of the pairing interaction. Our conclusion is based on the special role played by the spin-orbit coupling and the shape of the Fermi surface in SrTiO$_{3}$/LaAlO$_{3}$-interfaces and closely related systems.
description: 17 pages, 6 figures
title: Συγχωνεύσεις μικρομεσαίων επιχειρήσεων
title: Small business mergers
titleType: AlternativeTitle
Creators: name: Χασιώτη, Ερωφίλη
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: Επιχειρήσεις
subject: Αγορά
subject: Συγχωνεύσεις
subject: Εξαγορές
subject: Εταιρικός μετασχηματισμός
subject: Νομοθετικό πλαίσιο

description: Στην εποχή της παγκοσμιοποίησης των αγορών και του συνεχώς αυξανόμενου ανταγωνισμού, οι επιχειρήσεις οδηγούνται αναπόφευκτα σε επενδυτικές κινήσεις, οι οποίες βασίζονται κυρίως σε επιχειρηματικές συμπράξεις, οι οποίες μέσα από την αλλαγή της εταιρικής διάρθρωσης έχουν ως βασικό στόχο την ενδυνάμωση της θέσης τους στην αγορά. Η Ελλάδα είναι μία χώρα που έχει ως χαρακτηριστικό την ύπαρξη πολλών πολύ μικρών, μικρών και μικρομεσαίων επιχειρήσεων. Σήμερα δραστηριοποιούνται στη χώρα περίπου οκτακόσιες χιλιάδες (800.000) μικρομεσαίες επιχειρήσεις εκ των οποίων το ενενήντα πέντε τοις εκατό (95%) έχει έως δέκα (10) εργαζομένους, ενώ μόλις εξακόσιες εβδομήντα δύο (672) μεγάλες επιχειρήσεις έχουν περισσότερους από διακόσους πενήντα (250) εργαζομένους. Ωστόσο η ύπαρξη πολλών πολύ μικρών, μικρών και μικρομεσαίων επιχειρήσεων δεν δίνει στους ιδιοκτήτες τους το πλεονέκτημα που θα ήθελαν ή θα έπρεπε να έχουν, προκειμένου να είναι βιώσιμες αλλά και να αναπτύσσονται τόσο εντός της χώρας όσο και στο εξωτερικό. Η διεθνής οικονομική κρίση βρήκε την ελληνική οικονομία σε μία ιδιαίτερα δύσκολη περίοδο. Οι επιχειρήσεις, μέσα σε σύντομο χρονικό διάστημα βρέθηκαν αντιμέτωπες με ένα νέο, αρνητικό περιβάλλον, με την αγορά να ανατρέπεται ριζικά και την αβεβαιότητα να κυριαρχεί. Πλέον οι επιχειρήσεις πρέπει να βρουν καινοτόμες λύσεις οι οποίες θα βασίζονται στη λειτουργία της αγοράς και στη μείωση των λειτουργικών τους εξόδων, με σκοπό την επιβίωσή τους και την επιστροφή τους σε ρυθμούς ανάπτυξης. Ένα σημαντικό όπλο στην προσπάθεια αυτή των επιχειρήσεων αποτελεί η αναπτυξιακή νομοθεσία παροχής κινήτρων ανάπτυξης μέσω συνεργασιών και εταιρικών μετασχηματισμών, με σκοπό τη δημιουργία μεγάλων οικονομικών μονάδων, με κύριο νομοθέτημα τον Ν.4935/2022 που δημοσιεύθηκε την 26η Μαΐου 2022. Ουσιαστικά ο στόχος είναι, μέσω των κινήτρων που δίνονται σε μικρομεσαίες επιχειρήσεις αλλά και ελεύθερους επαγγελματίες όπως δικηγόρους, λογιστές, μηχανικούς κ.λ.π., οι επιχειρήσεις να μεγαλώσουν μέσω συγχωνεύσεων προκειμένου να επιβιώσουν, να αναπτυχθούν και να γίνουν ανταγωνιστικές. Το ερώτημα που γεννάται τώρα είναι πόσο ωφέλιμος θα είναι τελικά αυτός ο νέος νόμος για τους Έλληνες επιχειρηματίες και κατά πόσο θα θελήσουν να αξιοποιήσουν στο έπακρο το νέο αυτό το νόμο περί εταιρικών μετασχηματισμών και να πάνε σε ένα άλλο επίπεδο την επιχειρηματική τους δραστηριότητα.
Reflections on participatory research
Creators: name: Mietchen, Daniel
Publisher: name: Zenodo
Year: 2023

description: This repository hosts materials contributing to a discussion led by Rose O'Dea on 6 March 2023 at the Berlin Institute for Advanced Study (WiKo). The live version sits at https://en.wikiversity.org/wiki/User:Daniel_Mietchen/Reflections_on_participatory_research. Abstract Research processes are complex and take place at multiple levels, from individual researchers and research groups to research facilities, research fields and the research ecosystem as a whole. This talk explores multiple modes of participation in research processes at any such level and how they relate to the nature of research questions being addressed (or not) as well as to the impact that the resulting research methods, infrastructures, insights and other outcomes can have on the research ecosystem, its stakeholders and other facets of society. It touches upon ethical and sustainability aspects of the research system and highlights how collaborations across disciplinary, language, jurisdictional and other boundaries can enrich research by bringing together diverse perspectives, expertise, and resources. Featuring participatory elements itself, it further outlines how participation in research processes can be enhanced - both incrementally and in transformative fashions - to create impactful, innovative, and inclusive research environments better equipped to tackle the complex problems of our times. The PDF was generated from https://en.wikiversity.org/w/index.php?title=Special:DownloadAsPdf&page=User%3ADaniel_Mietchen%2FReflections_on_participatory_research&action=show-download-screen based on this version.
Quantifying and controlling the magnetic dipole contribution to 1.5 $μ$m light emission in erbium-doped yttrium oxide
Creators: name: Li, Dongfang
name: Jiang, Mingming
name: Cueff, Sébastien
name: Dodson, Christopher M.
name: Karaveli, Sinan
name: Zia, Rashid
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally quantify the contribution of magnetic dipole (MD) transitions to the near-infrared light emission from trivalent erbium-doped yttrium oxide (Er$^{3+}$:Y$_2$O$_3$). Using energy-momentum spectroscopy, we demonstrate that the $^4$I$_{13/2}{\to}^4$I$_{15/2}$ emission near 1.5 $μ$m originates from nearly equal contributions of electric dipole (ED) and MD transitions that exhibit distinct emission spectra. We then show how these distinct spectra, together with the differing local density of optical states (LDOS) for ED and MD transitions, can be leveraged to control Er$^{3+}$ emission in structured environments. We demonstrate that far-field emission spectra can be tuned to resemble almost pure emission from either ED or MD transitions, and show that the observed spectral modifications can be accurately predicted from the measured ED and MD intrinsic emission rates.
description: 5 page manuscript including 3 figures; 2 page ancillary supplement including 2 figures
The $L - σ$ relation for massive bursts of star formation
Creators: name: Chávez, Ricardo
name: Terlevich, Roberto
name: Terlevich, Elena
name: Bresolin, Fabio
name: Melnick, Jorge
name: Plionis, Manolis
name: Basilakos, Spyros
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The validity of the emission line luminosity vs. ionised gas velocity dispersion ($L - σ$) correlation for HII galaxies (HIIGx), and its potential as an accurate distance estimator are assessed. For a sample of 128 local ($0.02\lesssim z\lesssim 0.2$) compact HIIGx with high equivalent widths of their Balmer emission lines we obtained ionised gas velocity dispersion from high S/N high-dispersion spectroscopy (Subaru-HDS and ESO VLT-UVES) and integrated H$β$ fluxes from low dispersion wide aperture spectrophotometry. We find that the $L - σ$ relation is strong and stable against restrictions in the sample (mostly based on the emission line profiles). The `gaussianity' of the profile is important for reducing the rms uncertainty of the distance indicator, but at the expense of substantially reducing the sample. By fitting other physical parameters into the correlation we are able to significantly decrease the scatter without reducing the sample. The size of the starforming region is an important second parameter, while adding the emission line equivalent width or the continuum colour and metallicity, produces the solution with the smallest rms scatter=$δ\log L(\mathrm{H}β) = 0.233$. The derived coefficients in the best $L - σ$ relation are very close to what is expected from virialized ionising clusters, while the derived sum of the stellar and ionised gas masses are similar to the dynamical mass estimated using the HST corrected Petrosian radius. These results are compatible with gravity being the main mechanism causing the broadening of the emission lines in these very young and massive clusters. The derived masses range from about 2 $\times10^6$ $\mathrm{M}_{\odot}$ to $10^9$ $\mathrm{M}_{\odot}$ and their `corrected' Petrosian radius, from a few tens to a few hundred parsecs.
description: 55 pages, 45 figures, Accepted to be published in MNRAS
title: Η επίδραση των ατόμων με αυτισμό στα αδέρφια τους και στο οικογενειακό περιβάλλον
title: The effect of individuals with autism on their siblings and the family environment
titleType: AlternativeTitle
Creators: name: Κωστούρου, Ευθαλία Ελισάβετ
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2023
Subjects: subject: Αυτιστικά παιδιά - Οικογενειακές σχέσεις
subject: Γονείς αυτιστικών παιδιών
subject: Γονείς αυτιστικών παιδιών - Οικογενειακές σχέσεις
subject: Γονείς αυτιστικών παιδιών - Στάσεις
subject: Autistic children - Family relationships
subject: Parents of autistic children
subject: Parents of autistic children - Family relationships
subject: Parents of autistic children - Attitudes
subject: Αυτισμός
subject: Οικογένεια
subject: Αδέρφια
subject: Κοινωνία
subject: Autism
subject: Family
subject: Siblings
subject: Society

description: Ο αυτισμός δεν επηρεάζει μόνο το άτομο που φέρει τη διαταραχή, αλλά έχει άμεσο αντίκτυπο στο οικογενειακό και κατ’ επέκταση στο κοινωνικό περιβάλλον. Ο αυτισμός επηρεάζει σε μεγάλο βαθμό την ψυχοσύνθεση και τη λειτουργικότητα κάθε μέλους της οικογένειας. Η παρούσα έρευνα εξετάζει τη στάση της οικογένειας απέναντι στα αυτιστικά παιδιά εστιάζοντας στην αντίληψη των αδελφών που παρουσιάζουν τυπική ανάπτυξη. Θα διερευνηθεί ο βαθμός που επηρεάζεται η ψυχολογία και η καθημερινότητα των γονέων και των παιδιών τυπικής ανάπτυξης από την παρουσία της διαταραχής, όπως την αντιλαμβάνονται τα αδέλφια τυπικής ανάπτυξης.