cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The kinematics of young stellar population in the W5 region of the Cassiopeia OB6 association: implication on the formation process of stellar associations
Creators: name: Lim, Beomdu
name: Hong, Jongsuk
name: Lee, Jinhee
name: Yun, Hyeong-Sik
name: Hwang, Narae
name: Park, Byeong-Gon
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The star-forming region W5 is a major part of the Cassiopeia OB6 association. Its internal structure and kinematics may provide hints of the star formation process in this region. Here, we present a kinematic study of young stars in W5 using the Gaia data and our radial velocity data. A total 490 out of 2,000 young stars are confirmed as members. Their spatial distribution shows that W5 is highly substructured. We identify a total of eight groups using the k-means clustering algorithm. There are three dense groups in the cavities of H II bubbles, and the other five sparse groups are distributed at the ridge of the bubbles. The three dense groups have almost the same ages (5 Myr) and show a pattern of expansion. The scale of their expansion is not large enough to account for the overall structure of W5. The three northern groups are, in fact, 3 Myr younger than the dense groups, which indicates the independent star formation events. Only one group of them shows the signature of feedback-driven star formation as its members move away from the eastern dense group. The other two groups might have formed in a spontaneous way. On the other hand, the properties of two southern groups are not understood as those of a coeval population. Their origins can be explained by dynamical ejection of stars and multiple star formation. Our results suggest that the substructures in W5 formed through multiple star-forming events in a giant molecular cloud.
description: 16 pages, 12 figures, Accepted for publication in AJ
resistance to change scale development
Creators: name: Oreg, Shaul
name: Brandt, Mark
name: Azevedo, Flavio
name: Nilsson, Artur
name: White, Katherine
name: Yilmaz, Onurcan
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: the second study of our resistance to change scale development project
Commuting behaviour and subjective wellbeing
Creators: name: Tao, Yinhua
Publisher: name: A+BE | Architecture and the Built Environment
Year: 2023

description: This thesis has investigated the relationship between daily commuting behaviours and long-term subjective wellbeing from a longitudinal perspective. The underlying problem that motivated the thesis is the inconsistent research evidence on the commuting-wellbeing relationship, and more importantly, the insufficient theoretical conceptualisation of this relationship. As a response to the gap between theoretical understandings and empirical research, this thesis used a processual approach to frame the commuting-wellbeing relationship as an interdependent process over time. To operationalise this processual approach, two ways forward were proposed for longitudinal research, namely retrieving the upstream process that leads to changes in commuting behaviours and enriching the contextual understanding of commuting-wellbeing relationships. The upstream process of commuting changes pertains to the reason for people to (not) change their commuting behaviours, while the contextual understanding relates to the commuting-wellbeing relationship as time- and place-specific. Following these two ways forward, the empirical analysis of this thesis drew upon the nationwide panel data from China, the Netherlands and the United Kingdom to longitudinally investigate the relationships between commuting behaviours and subjective wellbeing over time. The aim of this thesis is not to identify a unidirectional commuting-wellbeing causality uniform to the general population and across research areas, but to acknowledge, operationalise and better understand the interdependent commuting-wellbeing relationships situated in the life courses of people and the socio-spatial contexts of places.
description: A+BE | Architecture and the Built Environment, No. 07 (2023): Commuting behaviour and subjective wellbeing
11 July 2023 (Day 2) Open Data Policies and Practices - Content
Creators: name: Marcum, Chris
name: Mchunu, Nokuthula
name: Boyd, Jamie
name: Lumnitz, Stefanie
name: Paseka, Rachel
name: Spichtinger, Daniel
name: Gentemann, Chelle
name: Jones, Sarah
name: Lassila-Perini, Kati
name: Šimko, Tibor
name: Naim, Kamran
name: Paseka, Rachel
name: Kohls, Alex
name: Seibold, Heidi
name: Dallmeier-Tiessen, Sunje
Publisher: name: Zenodo
Year: 2023

description: CERN/NASA “Accelerating the Adoption of Open Science”, from July 10th-14th at CERN in Geneva, Switzerland https://indico.cern.ch/event/1254282/ 11 July 2023 (Day 2) Open Data Policies and Practices
Study of a Sample of Faint Be Stars in the Exofield of CoRoT. Part III. Global Spectroscopic Characterization and Astrophysical Parameters of the Central Stars
Creators: name: Zorec, J.
name: Hubert, A. M.
name: Martayan, C.
name: Frémat, Y.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The present work is devoted to the study of faint Be stars observed by CoRoT in the fourth long run (LRA02). The astrophysical parameters were determined from the spectra observed with the VLT/FLAMES instruments at ESO. Spectra were fitted with models of stellar atmospheres using our GIRFIT package. Spectra in the lambda-lambda 6400-7200$ AA domain enabled the confirmation or a first identification of Be star candidates. The apparent parameters (Teff,log g,Vsin i) for a set of 19 B and Be stars were corrected for the effects induced by the rapid rotation. These allowed us to determine: 1) masses that are in agreement with those measured for detached binary systems; 2) distances that agree with the GAIA parallaxes; and 3) centrifugal/gravity equatorial force ratios of ~0.6-0.7, which indicate that our Be stars are subcritical rotators. A study of the Balmer Halpha, Hgamma and Hdelta emission lines produced: extents of the circumstellar disk (CD) emitting regions that agree with the interferometric inferences in other Be stars; R-dependent exponents n(R) of the CD radial density distributions; CD base densities. The Hgamma and Hdelta emission lines are formed in CD layers close to the central star. These lines produced a different value of the exponent n(R) than assumed for Halpha. Further detailed studies of Hgamma and Hdelta emission lines could reveal the physical properties of regions where the viscous transport of angular momentum to the remaining CD regions is likely to originate from. The subcritical rotation of Be stars suggests that their huge discrete mass-ejections and concomitant non-radial pulsations might have a common origin in stellar envelope regions that become unstable to convection due to rotation. The errors induced on the estimated Teff by the possible presence of stripped sub-dwarf O/B companions are not likely to exceed their present uncertainties.
description: 38 pages, 16 figures, regular paper submitted to Astronomy & Astrophysics
On Artificial-Noise Aided Transmit Design for Multi-User MISO Systems with Integrated Services
Creators: name: Mei, Weidong
name: Chen, Zhi
name: Li, Lingxiang
name: Fang, Jun
name: Li, Shaoqian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper considers artificial noise (AN)-aided transmit designs for multi-user MISO systems in the eyes of service integration. Specifically, we combine two sorts of services, and serve them simultaneously: one multicast message intended for all receivers and one confidential message intended for only one receiver. The confidential message is kept perfectly secure from all the unauthorized receivers. Our goal is to jointly design the optimal input covariances for the multicast message, confidential message and AN, such that the achievable secrecy rate region is maximized subject to the sum power constraint. This secrecy rate region maximization (SRRM) problem is a nonconvex vector maximization problem. To handle it, we reformulate the SRRM problem into a provably equivalent scalar optimization problem and propose a searching method to find all of its Pareto optimal points. The equivalent scalar optimization problem is identified as a secrecy rate maximization (SRM) problem with the quality of multicast service (QoMS) constraints. Further, we show that this equivalent QoMS-constrained SRM problem, albeit nonconvex, can be efficiently handled based on a two-stage optimization approach, including solving a sequence of semidefinite programs. Moreover, we also extend the SRRM problem to an imperfect channel state information (CSI) case where a worst-case robust formulation is considered. In particular, while transmit beamforming is generally a suboptimal technique to the SRRM problem, we prove that it is optimal for the confidential message transmission whether in the perfect CSI scenario or in the imperfect CSI scenario. Finally, numerical results demonstrate that the AN-aided transmit designs are effective in expanding the achievable secrecy rate regions.
description: Part of this work has been presented in IEEE GlobalSIP 2015 and in IEEE ICASSP 2016
Interstellar Conditions Deduced from Interstellar Neutral Helium Observed by IBEX and Global Heliosphere Modeling
Creators: name: Swaczyna, P.
name: Bzowski, M.
name: Heerikhuisen, J.
name: Kubiak, M. A.
name: Rahmanifard, F.
name: Zirnstein, E. J.
name: Fuselier, S. A.
name: Galli, A.
name: McComas, D. J.
name: Möbius, E.
name: Schwadron, N. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: In situ observations of interstellar neutral (ISN) helium atoms by the IBEX-Lo instrument onboard the Interstellar Boundary Explorer (IBEX) mission are used to determine the velocity and temperature of the pristine very local interstellar medium (VLISM). Most ISN helium atoms penetrating the heliosphere, known as the primary population, originate in the pristine VLISM. As the primary atoms travel through the outer heliosheath, they charge exchange with He$^+$ ions in slowed and compressed plasma creating the secondary population. With more than 2.4 million ISN helium atoms sampled by IBEX during ISN seasons 2009-2020, we compare the observations with predictions of a parametrized model of ISN helium transport in the heliosphere. We account for the filtration of ISN helium atoms at the heliospheric boundaries by charge exchange and elastic collisions. We examine the sensitivity of the ISN helium fluxes to the interstellar conditions described by the pristine VLISM velocity, temperature, magnetic field, and composition. We show that comprehensive modeling of the filtration processes is critical for interpreting ISN helium observations, as the change in the derived VLISM conditions exceeds the statistical uncertainties when accounting for these effects. The pristine VLISM parameters found by this analysis are the flow speed (26.6 km s$^{-1}$), inflow direction in ecliptic coordinates (255.7$^\circ$, 5.04$^\circ$), temperature (7350 K), and B-V plane inclination to the ecliptic plane (53.7$^\circ$). The derived pristine VLISM He$^+$ density is $9.7\times10^3$ cm$^{-3}$. Additionally, we show a strong correlation between the interstellar plasma density and magnetic field strength deduced from these observations.
description: 13 pages, 3 figures, 2 tables, accepted for publication in ApJ
Relationship between Service Quality and Customer Satisfaction: The Case of Ethiopian Airlines Call Center
Creators: name: Makonnen, Tigist
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: This study was carried out with the intention of examining the relationship between the five service quality dimensions, namely Tangibility, Reliability, Assurance, Responsiveness and Empathy, and customer satisfaction, focusing particularly on Ethiopian Airlines Call Center. For this study, accessible sample size of 330, who have used Ethiopian Airlines Call Center at least ones, either through phone or email, was selected. A structured questionnaire was used to collect data form respondents by using a self-administered data collection system. Data analysis mainly took place with SPSS 20.0 to test hypothesized relationships. The study found out that three out of the five service quality dimensions, Assurance, Responsiveness and Empathy, have significant relationship with Customer satisfaction.On the other hand, the relationship between the rest two dimensions, Tangibility and Reliability, and customer satisfaction is insignificant.
Ethnic Identity Change - Evaluation of IP
Creators: name: Abdullahi, Amina K.
name: Syed, Moin
Publisher: name: OSF Registries
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: Ethnic Identity

description: Evaluation study of the effectiveness of an adapted version of "The Identity Project", a school based intervention. Focus is on potential changes in process and content of ethnic identity development.
Measurement of dsigma/dM and Forward-Backward Charge Asymmetry for High-Mass Drell-Yan e+e Pairs from pp-bar Collisions at sqrt(s) = 1.8 TeV
Creators: name: Affolder, T.
name: Akimoto, H.
name: Akopian, A.
name: Albrow, M. G.
name: Amaral, P.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Phantasmagorical dreams and desires : an exegetical essay reflecting on the role of memory and place in the inducement of reverie
Creators: name: Hanning, Anthony
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Zwicky Transient Facility and Globular Clusters: the gr-Band Period-Luminosity Relations for Mira Variables at Maximum Light and Their Applications to Local Galaxies
Creators: name: Ngeow, Chow-Choong
name: Ou, Jia-Yu
name: Bhardwaj, Anupam
name: Purdum, Josiah
name: Rusholme, Ben
name: Wold, Avery
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Based on 14 Miras located in 7 globular clusters, we derived the first gr-band period-luminosity (PL) at maximum light for the large-amplitude Mira variables using the multi-year light-curve data collected from the Zwicky Transient Facility (ZTF). Since Miras are red variables, we applied a color-term correction to subsets of ZTF light curves, and found that such corrections do not have a large impact on period determinations. We applied our derived PL relations to the known extragalactic Miras in five local galaxies (Sextans, Leo I, Leo II, NGC6822 and IC1613), and determined their Mira-based distances. We demonstrated that our PL relations can be applied to short-period (<300 days) Miras, including those in the two most distant galaxies (NGC6822 and IC1613) in our sample even when only a portion of the light-curves around maximum light have detections. We have also shown that the long-period extragalactic Miras do not follow the PL relations extrapolated to longer periods. Hence, our derived PL relations are only applicable to the short-period Miras, which will be discovered in abundance in local galaxies within the era of Vera C. Rubin Observatory's Legacy Survey of Space and Time.
description: 12 pages, 2 Tables and 10 Figures, AJ accepted
NARQing (The Structure and Correlates of Narcissism among U.S. Racial/Ethnic Groups)
Creators: name: Chou, Edward
name: Westberg, Dulce Wilkinson
name: Nguyen, Phuong Linh L.
name: Syed, Moin
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Preregistration plan for "The Structure and Correlates of Narcissism among U.S. Racial/Ethnic Groups"
Public Procurement Practices and Challenges in Ethiopia: Evidence from Selected Public Organizations
Creators: name: Legesse, Roman
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The objective of this study is to assess the regulatory framework, practices and challenges of public procurement in selected public organizations in Ethiopia, and to see the main procurement procedures in light of public procurement practices in some East African countries. The study used mixed research approaches: Survey, in-depth interviews and documentary analysis. The main findings include: some public procurement performances regarding need identification, selection of procurement methods and planning processes were not in accordance with the procurement rules and regulations, and lack of effective use of procurement budget. As the study reviled the causes for the problems were: failure to retain skilled manpower due to low government salary scale; only one agency (the procurement agency) is mandated to process all public procurement in all public organizations; and lack of transparency in the contract administration procedure. Moreover, the result shows that the main procurement procedures in the three East Africa countries are similar to that of Ethiopia in many aspects. However, some of the observed gaps should be filled. This needs commitment from responsible government authorities to improve the public procurement practices and resolve challenges for sound public procurement practices. Key Words: Public procurement, procurement procedures, procurement planning, procurement specifications
D5.5 - First Synthesis Report on the Performed Policy Advice
Creators: name: Barbante, Carlo
name: Venier, Chiara
name: Ademollo, Nicoletta
name: Vitale, Vito
name: EU-PolarNet 2 Consortium
Publisher: name: Zenodo
Year: 2022
Subjects: Policy Advice
Policy Advisory Board
EU-PolarNet 2

description: This Deliverable presents a first synthesis on the performed policy advice activities carried out by the EU-PolarNet 2 project within WP5 (“Policy Advice, Dissemination and Communication”). The first section describes the status of the Policy Advisory Board (PAB), including roles, responsibilities, the first meeting and the nomination of the chair and co-chairs. The second section provides a summary of the events organised by the project which can be identified as policy advice actions.
Vehicle-to-grid plug-in forecasting for participation in ancillary services markets
Creators: name: Graham, Jemima
name: Teng, Fei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Electric vehicle (EV) charge points (CPs) can be used by aggregators to provide frequency response (FR) services. Aggregators must have day-ahead half-hourly forecasts of minimum aggregate vehicle-to-grid (V2G) plug-in to produce meaningful bids for the day-ahead ancillary services market. However, there is a lack of understanding on what features should be considered and how complex the forecasting model should be. This paper explores the dependency of aggregate V2G plug-in on historic plug-in levels, calendar variables, and weather conditions. These investigations are used to develop three day-ahead forecasts of minimum aggregate V2G plug-in during 30-minute window. A neural network that considers previous V2G plug-in values the day before, three days before, and seven days before, in addition to day of the week, month, and hour, is found to be the most accurate.
title: Методы оптимальных решений
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2021

description: В пособии рассматриваются математические методы принятия оптимальных решений: математическое программирование, динамическое программирование, теория игр и многокритериальная оптимизация. Показана схема нахождения оптимальных решений в программе MS Excel. Учебное пособие предназначено для студентов укрупненной группу специальностей и направлений подготовки высшего образования 38.00.00 «Экономика и управление», изучающих дисциплину «Методы оптимальных решений».
Visions of the esoteric power : an investigation of the spiritual through painting
Creators: name: Geraldes, Luis
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
First Measurement of Form Factors of the Decay Xi0 --> Sigma+eoverline( nu )e
Creators: name: Alexopoulos, T.
name: Alavi-Harati, A.
name: Arenton, M.
name: Arisaka, K.
name: Averitte, S.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Spin-Liquid--to--Spin-Liquid Transition in Kitaev Magnets Driven by Fractionalization
Creators: name: Nasu, Joji
name: Kato, Yasuyuki
name: Yoshitake, Junki
name: Kamiya, Yoshitomo
name: Motome, Yukitoshi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: While phase transitions between magnetic analogs of three states of matter --- a long-range ordered state, paramagnet, and spin liquid --- have been extensively studied, the possibility of "liquid-liquid" transitions, namely, between different spin liquids, remains elusive. By introducing the additional Ising coupling into the honeycomb Kitaev model with bond asymmetry, we discover that the Kitaev spin liquid turns into a spin-nematic quantum paramagnet before a magnetic order is established by the Ising coupling. The quantum phase transition between the two liquid states accompanies a topological change driven by fractionalized excitations, the $Z_2$ gauge fluxes, and is of first order. At finite temperatures, this yields a persisting first-order transition line that terminates at a critical point located deep inside the regime where quantum spins are fractionalized. It is suggested that similar transitions may occur in other perturbed Kitaev magnets with bond asymmetry.
description: 8 pages, 6 figures
Alignment Delays in the N = Z Nuclei 72Kr, 76Sr, and 80Zr
Creators: name: Balamuth, D. P.
name: Bauer, R.
name: Becker, J. A.
name: Fischer, S. M.
name: Lister, C. J.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
ROMÉ DE L'ISLE, Jean-Baptiste Louis de, Catalogue raisonné d'une collection choisie de minéraux, cristallisations, coquilles, pétrifications… [de Jacob Forster]…, Paris, Didot Jeune, 1783.
Creators: name: RUSQUE, Dorothée
Publisher: name: Zenodo
Year: 2024

description: Source: Sale catalogue of J. Forster, 1783
Crossover from collisionless to collisional spin dynamics of polarized fermions
Creators: name: Xu, Junjun
name: Gu, Qiang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the transverse spin dynamics of trapped polarized Fermi gases in the high temperature limit. In the non-interacting collisionless regime, a magnetic field gradient induces collective spin wave oscillations. In the strongly interacting collisional regime, the dynamics are governed by spin diffusion. These two limits have been extensively studied both experimentally and theoretically, but the crossover between them has received less attention. In this paper, we use a quantum Boltzmann equation to study transverse spin dynamics and show how the excitations evolve from dispersive to diffusive in the high temperature limit. We provide analytical solutions in the two limiting regimes, which agree well with our numerical results.
description: 6 pages, 4 figures
Lease Financing in Ethiopia: an Assessment of Five Regulated Lease Financing Companies
Creators: name: Abera, Asfaw
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: The focus of this research is to assess the current state of lease financing in Ethiopia and investigate the challenges or impediments of the sector as well as its review of legal and regulatory framework. Leasing is an alternative to traditional forms of financing particularly for SMEs, although it's yet underdeveloped in Ethiopia and currently at its infant stage. The research approach adopted in this study was a mix of quantitative and qualitative method. Both primary and secondary data were used as evidence for the study. In identifying the respondents from the study population a mix of both random and purposive sampling were adopted. All the five regulated lease finance companies as well as supervisory bodies were included in the sample. The study found out that the major challenges of the lease finance sector in Ethiopia include: lack of availability of low cost and sustainable funding; lack of clarity on interpretation of tax incentives provided by law; lack of leasing expertise in the market; existence of inadequate supply chain linkages as well as procurement hurdles; existence of limited domestic suppliers; and absence of specialized leasing training center in the country. Despite these challenges, the study identified that leasing has high market potential for growth in Ethiopia due to government's attention to support the manufacturing sector and SMEs financing through equipment leasing. This is evidenced by both the survey analysis and interview result. The conclusions are based on 42 leasing stakeholders' questionnaire – response and the outcome of the in-depth interviews of the executives of leasing companies, officials of MOT and EIC as well as selected leasing experts. The study recommends changes to legal and regulatory framework to create an enabling environment for leasing development and ensure clarity of leasing laws and regulations as well as challenges of the leasing sector be resolved by the concerted efforts of key stakeholders in a way that spur the development of leasing in the country. Keywords: Leasing, lease finance, equipment leasing, capital goods finance.
Observation of 46Cr and Testing the Isobaric Multiplet Mass Equation at High Spin
Creators: name: Appelbe, D.
name: Bauer, R. W.
name: Becker, J. A.
name: Garrett, P. E.
name: Ormand, W. E.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
D4.1 - Directory of European Polar Research Funding Programmes
Creators: name: Vancauwenberghe, Maaike
name: Deleu, Philippe
name: Ørbæk, Jon Børre
name: Strobel, Anneli
name: Biebow, Nicole
Publisher: name: Zenodo
Year: 2022
Subjects: Research funding
Polar
Governance

description: The “Directory of Polar research funding programmes in Europe” at hand is EU-PolarNet 2´s initial step to improve the coordination and cooperation of national polar funding organisations in Europe. The directory provides an overview about the governance, strategies, and procedures of polar research funding in Europe.
description: Please cite as: EU-PolarNet 2 consortium (2022) Directory of European Polar Research funding programmes (Eds. Vancauwenberghe M, Deleu P, Ørbæk JB, Strobel A, Biebow N). 58 pp. Bremerhaven: Alfred Wegener Institute.
On the failure of neutron yield scaling in the Dense Plasma Focus
Creators: name: Auluck, S K H
Publisher: name: arXiv
Year: 2023
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The observed scaling of neutron yield in the Dense Plasma Focus (DPF) as the fourth power of the current in the plasma was the principal driver of the growth of DPF research in its early days. Subsequent discovery of failure of this scaling law was also the principal reason for its abandonment by major laboratories. Attempts to understand this failure of scaling have so far been inconclusive. This letter looks at this failure in the context of the recently introduced Generalized Plasma Focus (GPF) problem and suggests a possible reason that can be experimentally examined using small plasma focus devices. This involves restrictions placed on the drive parameter by conservation laws for mass, momentum and energy. A suggested empirical workaround to the problem of neutron yield scaling failure could also be configured as a method for increasing the pressure range for neutron emission in small DPF devices.
description: Accepted for publication in Physics of Plasmas on 14th July 2023
Effects of long-range disorder and electronic interactions on the optical properties of graphene quantum dots
Creators: name: Altıntaş, A.
name: Çakmak, K. E.
name: Güçlü, A. D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically investigate the effects of long-range disorder and electron-electron interactions on the optical properties of hexagonal armchair graphene quantum dots consisting of up to 10806 atoms. The numerical calculations are performed using a combination of tight-binding, mean-field Hubbard and configuration interaction methods. Imperfections in the graphene quantum dots are modelled as a long-range random potential landscape, giving rise to electron-hole puddles. We show that, when the electron-hole puddles are present, tight-binding method gives a poor description of the low-energy absorption spectra compared to meanfield and configuration interaction calculation results. As the size of the graphene quantum dot is increased, the universal optical conductivity limit can be observed in the absorption spectrum. When disorder is present, calculated absorption spectrum approaches the experimental results for isolated monolayer of graphene sheet.
الإبداع ومن ثم الابتكار: توليفة داعمة للمقاولاتية وبناء الميزة التنافسية لمنظمات الأعمال-تجارب شركات رائدة
Creators: name: خلوفي, سفيان
Publisher: name: figshare
Year: 2023
Subjects: Heterodox economics
Other economics not elsewhere classified

description: تهدف الدراسة إلى محاولة التعرف على مساهمة توليفة الإبداع ومن ثم الابتكار في دعم المقاولاتية وبناء الميزة التنافسية لمنظمات الأعمال، من خلال عرض تجارب ثلاث شركات رائدة: شركة المراعي، شركة أبــل وشركة يونيليفر. وقد خلصت هذه الدراسة في الأخير إلى أنّ الإبداع والابتكار من أهم مداخل ومصادر دعم المقاولاتية وبناء الميزة التنافسية للمنظمات، لما يسمح لها من مواكبة مختلف التغيرات الحاصلة في بيئة أعمالها وتلبية رغبات وتوقعات العملاء التي هي أساس وجودها ونجاحها. وأوصت الدراسة في الأخير منظمات الأعمال بضرورة تبني أساليب انتاجية جديدة لتحسين التصميم والنوعية، و/أو ابتكار منتج أو خدمة جديدة ذات جودة عالية تتماشى وتطلعات العملاء حتى وإن تطلبت تكلفة عالية على المدى القصير، وتخصيص مساهمات مالية سنويًا للبحث والتطوير ولدعم الابتكار من أرباحها، وهذا وفق استراتيجية واضحة للابتكار في مجالات عملها. الكلمات المفتاح : إبداع؛ ابتكار؛ منظمات أعمال؛ ميزة تنافسية. تصنيف JEL : O31؛ D40؛ M55. The study aims to try to identify the contribution of the combination of creativity and then innovation in supporting entrepreneurship and building the competitive advantage of business organizations, by presenting the experiences of three leading companies: Almarai Company, Apple Company and Unilever Company. Finally, this study concluded that creativity and innovation are among the most important entrances and sources of support for entrepreneurship and building the competitive advantage of organizations, which allows them to keep pace with the various changes taking place in their business environment and meet the desires and expectations of customers that are the basis of their existence and success. Finally, the study recommended business organizations to adopt new production methods to improve design and quality, and/or to create a new product or service of high quality in line with the aspirations of customers even if it requires a high cost in the short term, and to allocate annual financial contributions to research and development and to support innovation from their profits, and this According to a clear strategy for innovation in its fields of work. Key words: creativity, innovation, business organizations, competitive advantage. JEL Classification Codes : O31; D40; M55.
The X-ray Binary-Star Cluster Connection in Late-Type Galaxies
Creators: name: Hunt, Qiana
name: Chandar, Rupali
name: Gallo, Elena
name: Floyd, Matthew
name: Maccarone, Thomas J.
name: Thilker, David A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We conduct one of the largest systematic investigations of bright X-ray binaries (XRBs) in both young star clusters and ancient globular clusters (GCs) using a sample of six nearby, star-forming galaxies. Combining complete CXO X-ray source catalogs with optical PHANGS-HST cluster catalogs, we identify a population of 33 XRBs within or near their parent clusters. We find that GCs that host XRBs in spiral galaxies appear to be brighter, more compact, denser, and more massive than the general GC population. However, these XRB hosts do not appear preferentially redder or more metal-rich, pointing to a possible absence of the metallicity-boosted formation of low-mass X-ray binaries (LMXBs) that is observed in the GCs of older galaxies. We also find that a smaller fraction of LMXBs is found in spiral GC systems when compared with those in early-type galaxies: between 8 and 50%, or an average of 20% across galaxies in our sample. Although there is a non-negligible probability of a chance superposition between an XRB and an unrelated young cluster, we find that among clusters younger than 10 Myr, which most likely host high-mass XRBs, the fraction of clusters associated with an XRB increases at higher cluster masses and densities. The X-ray luminosity of XRBs appears to increase with the mass of the cluster host for clusters younger than ~400 Myr, while the inverse relation is found for XRBs in GCs.
description: 17 pages of text, 6 tables, 6 figures
Investigation of Magnetic Pulse Deformation of Powder Parts
Creators: name: Kolbe, M.
name: Mironov, V.
name: Shishkin, A.
name: Zemchenkov, V.
Publisher: name: Technische Universität Dortmund
Year: 2012
Subjects: subject: deformation of powder parts
subject: powder compression
subject: 620
subject: 670

description: Current article covers basics of powder compaction by electromagnetic impulse field and research results of sintered Fe powder part deformation process. This work is a joint research carried out by Riga Technical University (Latvia) and the Westsächsische Hochschule Zwickau (Germany).
Function is the subject matter, not the purpose
Creators: name: Esson, Merran
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Urban Renewal Strategy of the Addis Ababa City Government: Implication for Social Institutions in Arada Sub-City
Creators: name: Kabthyimer, Gezahegn
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: This study has discussed about the traditional and social institutions' implication in urban renewal and development projects on relocated residents. The focus of this study was to explore the situations of social institutions such as idir iqub, mahiber, sebekagubaie, and neighborhood self-help group of those who were relocated. Also, it focuses to explore the activities of those relocated including how they are vulnerable to urban context, to examine whether the social institutions are employed by them to cope-up or recover from the undesirable social problems and to assess the outcomes of such strategies. In doing this, those people who were relocated to Summit, Jemo1 and Jemo2 were purposefully selected as study population. In this context, the implication for social institution of negative effects of urban development projects on relocated people. Such relocation caused by development project occurs because of slum demolishing, urban expansion and renewal of the city's facility and infrastructure. The study was conducted in Arada Sub-city, Basha Woldechilot 1 and 2 project sites in which different development projects and relocation programs have been implemented. The overall aim of the study was to explore why relocation has been affecting social institutions of the relocated people and, the limited emphasize and concern for them by the urban administration responsible for promotion of developmental projects. Interviews and questionnaires are used for collection of data. Out of 2659 households relocated from Arada Sub-City Basha Woldechilot 1 and2 to Ayat/Summit and Jemo 1and2 sites 55 households were selected using purposive sampling method and tables are used to analyze survey results. Finally, the study suggests the importance of community participation in decision-making process, through recognizing the establishment of the social institutions that are the backbone for community problem solving mechanisms. Before planning projects, deep community based research and social institutions participation should be employed during the implementation of the scheme. To make this research viable, relevant information was collected from primary and secondary data sources
Mortar–Pestle Grinding Technique as an Efficient and Green Method Accelerates the Tandem Knoevenagel–Michael Cyclocondensation Reaction in the Presence of Ethylenediamine Immobilized on the Magnetite Nanoparticles
Creators: name: Rezayati, Sobhan
name: Dinmohammadi, Ghazaleh
name: Ramazani, Ali
name: Sajjadifar, Sami
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Inorganic Chemistry

description: In this research, we successfully designed and synthesized a new core-shell-structured inorganic-organic hybrid magnetic nanocatalyst via the ethylene diamine immobilized to the core-shell Fe3O4 nanomagnetic particles (Fe3O4@SiO2@(CH2)3/EDA). A variety of analyses such as fourier-transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), transmission electron microscopy (TEM), vibrating sample magnetometry (VSM), elemental mapping (WDS), thermal gravimetric analysis (TGA), powder X-ray diffraction (PXRD) and Brunauer-Emmet-Teller (BET) were used to characterize the as-synthesized nanocatalysts. The activity of this as-synthesized nanocatalysts can be successfully used in the grinding synthesis of various aldehydes, malononitrile and dimedone under solvent- and metal-free conditions at room temperature to give 2-amino-4H-benzo[b]pyran derivatives within high purity and excellent yields. Easy fabrication of Fe3O4@SiO2@(CH2)3/EDA, waste reduction, effective for large scale synthesis, simple work-up procedure, adherence to the basics of green chemistry, high catalytic efficiency in very small amounts (0.05 g), environmentally friendly and based on natural ingredients are the great advantages of the current method. In particular, due to the super magnetic behavior of the catalyst, it can be easily recovered with the use of an external magnet from the reaction mixture, and it can be reused over 7 successive times with no decrease in the yields and activity.
Laser-driven lepton polarization in the quantum radiation-dominated reflection regime
Creators: name: Zhuang, Kai-Hong
name: Chen, Yue-Yue
name: Li, Yan-Fei
name: Hatsagortsyan, Karen Z.
name: Keitel, Christoph H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Generation of ultrarelativistic polarized leptons during interaction of an ultrarelativistic electron beam with a counterpropagating ultraintense laser pulse is investigated in the quantum radiation-dominated domain. While the symmetry of the laser field tends to average the radiative polarization of leptons to zero, we demonstrate the feasibility of sizable radiative polarization through breaking the symmetry of the process in the reflection regime. After the reflection, the off-axis particles escape the tightly focused beam with polarization correlated to the emission angle, while the particles at the beam center are more likely to be captured in the laser field with unmatched polarization and kinetic motion. Meanwhile, polarization along the electric field emerges due to the spin rotation in the transverse plane via precession. In this way, the combined effects of radiative polarization, spin precession and the laser field focusing are shaping the angle-dependent polarization for outgoing leptons. Our spin-resolved Monte Carlo simulations demonstrate an angle-dependent polarization degree up to $\sim20\%$ for both electrons and positrons, with a yield of one pair per seed electron. It provides a new approach for producing polarized high density electron and positron jets at ultraintense laser facilities.
Aspects of Galileon Non-Renormalization
Creators: name: Goon, Garrett
name: Hinterbichler, Kurt
name: Joyce, Austin
name: Trodden, Mark
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss non-renormalization theorems applying to galileon field theories and their generalizations. Galileon theories are similar in many respects to other derivatively coupled effective field theories, including general relativity and $P(X)$ theories. In particular, these other theories also enjoy versions of non-renormalization theorems that protect certain operators against corrections from self-loops. However, we argue that the galileons are distinguished by the fact that they are not renormalized even by loops of other heavy fields whose couplings respect the galileon symmetry.
description: 33 pages. v2: minor corrections, added comments, version to appear in JHEP
Les dynamiques entrepreneuriales dans l'ESS et la promotion du développement inclusif : cas de la coopérative féminine
Creators: name: BOUNJEM Tariq
name: LAGHRISSI LOUBNA
name: NAHRAOUI Badareddine
Publisher: name: Zenodo
Year: 2024

description: Depuis quelques décennies, l’économie sociale et solidaire ne cesse de s’affirmer comme étant un modèle économique alternatif, venant en réponse à un échec de la logique marchande qui, bien qu'elle ait de nombreux avantages, présente également plusieurs défaillances importantes, notamment : le fort taux de chômage et d’emploi informel, des nouvelles formes de pauvreté et de vulnérabilité socio-économique chez les jeunes et les femmes, de la dégradation de l’environnement etc.

Dans ce sens, la coopérative féminine, une composante principale de l’ESS, se présente aujourd’hui comme un facteur clé de croissance, ayant la capacité de résoudre des problèmes sociaux, environnementaux et contribuer significativement à un développement durable qui profite à toutes les composantes d’un territoire.

Conscient de sa contribution puissante dans l’avancement vers l’égalité des sexes, et la lutte contre l’exclusion et la pauvreté, un intérêt particulier a été accordé au développement de la coopérative féminine, que ce soit à travers une multitude de programmes d’accompagnement, ou dans les axes de la stratégie nationale de l’ESS (2018-2028).

De cela, il nous semble intéressant de se poser la question suivante : dans quelle mesure l’ESS, à travers la coopérative féminine, contribue-elle au développement inclusif ? De cette question de recherche, peuvent se décliner autres sous questions à travers lesquelles nous essaierons de mettre en lumière le contexte d’apparition de l’ESS comme modèle alternatif, identifier les dynamiques entrepreneuriales dans ce modèle, et questionner la capacité dudit modèle dans l’émancipation des femmes entrepreneurs dans des modes de production durables et adaptés aux territoires ruraux.

Pour répondre à cette problématique, nous avons jugé pertinent d’opter pour une recherche qualitative et exploratoire basée sur un échantillon raisonné des coopératives féminines.
The Impact Of Customer Relationship Marketing On Customer Loyalty In Banking Industry, The Case Of Dashen Bank
Creators: name: Addis, Samuel
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The purpose of this study is to provide an insight into the impact of relationship marketing strategy on customer loyalty of retail banking industry particularly in Dashen bank and to examines whether these relationship strengthen through improvements in banking relationship. A questionnaire derived from previous studies. Multiple regression analysis assessed the impact on customer loyalty of four key construct of customer relationship marketing (Trust, Commitment, empathy and conflict handling). Results indicate that four variables have significant effect and predict good proportion of variance in customer loyalty.There are many different relationship marketing dimensions implemented for retaining customers. Therefore, this study is aimed to explore the impact of relationship marketing dimensions (trust, commitment, conflict handling, and empathy) on customer loyalty, by focusing on the Dashen bank. A theoretical framework was used as a guideline to test the relationships between relationship marketing dimensions and customer loyalty.A quantitative method which is cross-sectional study with deductive approach is chosen in this research. In order to collect primary data, a self-completed questionnaire is designed and was randomly given to the customers of Dashen bank. In addition to questionnaire, semi structured interview questions are prepared to get information from the organization which is analysed qualitatively.It is reasonable to conclude, on this evidence, that customer loyalty can be created, reinforced and retained by marketing plans aimed at building trust, demonstrating commitment to service ,have empathy on customers feelings and proactive fashion, and handling conflict efficiently. Furthermore, they are significantly related to one another. The relationship investigated in this study deserves further research. Because the data analyzed were collected from one sector of the service industry in one country, more studies are required before general conclusions can be drawn
Statistical data from video processing other European SL datasets
Creators: name: Hanke, Thomas
name: Schulder, Marc
Publisher: name: Universität Hamburg
Year: 2024
Subjects: sign language pose
high performance cluster
service

description: EASIER has established a pipeline for processing datasets from European sign languages beyond those covered by the consortium, with the aim of providing pose analysis as an important entry point for data science on sign language resources. While discussions with third parties on using this ser- vice took place and are still ongoing, no data processing happened before the end of the project. Accordingly, there are no statistical data to report. Instead, the report analyses why no such uses have taken place.