cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Determination of the strange nucleon form factors
Creators: name: Shanahan, P. E.
name: Horsley, R.
name: Nakamura, Y.
name: Pleiter, D.
name: Rakow, P. E. L.
name: Schierholz, G.
name: Stüben, H.
name: Thomas, A. W.
name: Young, R. D.
name: Zanotti, J. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The strange contribution to the electric and magnetic form factors of the nucleon is determined at a range of discrete values of $Q^2$ up to $1.4$ GeV$^2$. This is done by combining recent lattice QCD results for the electromagnetic form factors of the octet baryons with experimental determinations of those quantities. The most precise result is a small negative value for the strange magnetic moment: $G_M^s(Q^2=0) = -0.07\pm0.03\,μ_N$. At larger values of $Q^2$ both the electric and magnetic form factors are consistent with zero to within $2$-sigma.
Real positivity and approximate identities in Banach algebras
Creators: name: Blecher, David P.
name: Ozawa, Narutaka
Publisher: name: arXiv
Year: 2014
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: Blecher and Read have recently introduced and studied a new notion of positivity in operator algebras, with an eye to extending certain $C^*$-algebraic results and theories to more general algebras. In the present paper we generalize some part of this, and some other facts, to larger classes of Banach algebras.
description: 47 pages. A final revision. To appear Pacific J. Math
Relationship between Internal Corporate Governance Mechanisms and Shareholder Value in the Banking Sector in Bangladesh The Mediating Effect of Non-Equity Stakeholders
Creators: name: Hossain, Mohammad Kamal
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Corporate governance

description: This study aimed to determine the mediating effects of each of the four non-equity stakeholders on the relationship between internal corporate governance mechanisms and shareholder value. Panel data of 29 out of 30 commercial banks listed on the Dhaka Stock Exchange were used. All the required data were collected from the annual reports or supplementary sources of the respective banks. This study employed the random-effects GLS regression model to examine the relationships between the variables. Subsequently, the “three-step approach” suggested by Baron & Kenny (1986) was used to determine the mediating effect of non-equity stakeholders on the relationship between internal corporate governance mechanisms and shareholder value.
Signatures of New $d$-Wave Vortex Physics in Overdoped Tl$_2$Ba$_2$CuO$_{6+x}$ Revealed by TF-$μ^+$SR
Creators: name: Brewer, Jess H.
name: Stubbs, Scott L.
name: Liang, Ruixing
name: Bonn, D. A.
name: Hardy, W. N.
name: Sonier, J. E.
name: MacFarlane, W. Andrew
name: Peets, Darren C.
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: The spontaneous expulsion of applied magnetic field, the Meissner effect, is a defining feature of superconductors; in Type-II superconductors above the lower critical field, this screening takes the form of a lattice of magnetic flux vortices. Using implanted spin-1/2 positive muons, one can measure the vortex lattice field distribution through the spin precession and deduce key parameters of the superconducting ground state, and thereby fundamental properties of the superconducting pairing. Muon spin rotation/relaxation ($μ$SR) experiments have indeed revealed much interesting physics in the underdoped cuprates, where superconductivity is closely related to, or coexistent with, disordered or fluctuating magnetic and charge excitations. Such complications should be absent in overdoped cuprates, which are believed to exhibit conventional Fermi liquid behaviour. These first transverse field (TF)-$μ^+$SR experiments on heavily-overdoped single crystals reveal a superfluid density exhibiting a clear inflection point near 0.5$T_c$, with a striking doping-independent scaling. This reflects hitherto unrecognized physics intrinsic to $d$-wave vortices, evidently generic to the cuprates, and may offer fundamentally new insights into their still-mysterious superconductivity.
description: 8 pages, 5 figures (including supplementary). Significant changes from previous version. In particular, we now identify the cause of the near-ubiquitous inflection point in the cuprates' $\mu$SR penetration depth and why it's not fully ubiquitous
Tackling malaria with the power of biometrics
Creators: name: Simprints
Publisher: name: Zenodo
Year: 2024
Subjects: Biometrics
vaccines
healthcare
biometric technology
Ghana
Malaria
malaria vaccine

description: Malaria remains the leading cause of death in Ghana, and the main cause of outpatient visits. However, the new malaria vaccine, RTS,S/AS01, can reduce severe malaria cases that are admitted to hospital by 30%, and new vaccines continue to appear with a promise of efficacy up to 80%.

Explore this digital poster to learn more about how the groundbreaking work of Simprints and Ghana Health Services is improving access to critical maternal and vaccine services across two regions of Ghana.
Particle Optimization by Surface Treatment
Creators: name: San Vicente, Gema
name: Morales, Angel
name: Farchado, Meryem
name: Alkan, Gözde
name: Barbri, Hicham
name: Oskay, Ceyhun
name: Kerbstadt, Michael
name: Grimme, Christoph
name: Galetz, Mathias
Publisher: name: Zenodo
Year: 2022

description: Four different techniques at three institutes were developed and tested on state-of-the-art and novel developed GEN3 particles. The initial optical performance could be improved in all the cases.
Has social distancing increased our relationships and sense of being connected? Results from a study conducted in Italy, France and Spain during the first COVID-19 lockdown
Creators: name: Menatti, Laura
name: Ranzini, Mariagrazia
Publisher: name: Psychology Hub
Year: 2023

description: Connecting with others is a basic human need, often associated with health and well- being. The COVID-19 pandemic and the related distancing measures have been challenging the way we connect and interact, by raising psychological and social issues. During the first lockdown, we designed a questionnaire to investigate people’s social relationships and sense of connectedness. We distributed it online in Italy, France, and Spain (N=672). The survey asked people to rate how much they perceived to be connected to personal (family, friends), local (city), European, or global communities; we related connectedness to other factors, such as quality of social relations, fear of contagion, loneliness, worries for the future. Our results show that the majority of responders reported being moderately to consistently in touch with other people. Yet, to be in contact does not mean to be connected. Compared to the pre-pandemic period, responders reported to be particularly connected with their families/friends, less connected with their town and Europe, while they perceived no variation in the degree of connection with the entire world. Among the predictors we analysed, the fear of being infected and the perception of loneliness revealed significant effects on the connectedness to family and friends. Furthermore, perceiving to be connected to personal and larger groups was associated with fewer worries for the future. Our findings are in line with other psychological studies developed during the pandemic which demonstrate that relationships and the sense of being connected improve the quality of life of people and their expectations for the future.
description: Psychology Hub, Vol. 40 No. 1 (2023)
Foreign Direct Investment and its Impact on Economic Growth in Afghanistan
Creators: name: Shirazai, Rohullah
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Finance

description: This study is an empirical investigation of the relationship between Foreign Direct Investment and economic growth. The study is based completely on secondary time series data. The statistical methods adopted for the analysis of data are the Pearson product moment correlation coefficient test and the Granger causality testing framework within the vector auto-regression (VAR) model.
Quench echo and work statistics in integrable quantum field theories
Creators: name: Palmai, Tamas
name: Sotiriadis, Spyros
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a boundary thermodynamic Bethe ansatz calculation technique to obtain the Loschmidt echo and the statistics of the work done when a global quantum quench is performed on an integrable quantum field theory. We derive an analytic expression for the lowest edge of the probability density function and find that it exhibits universal features, in the sense that its scaling form depends only on the statistics of excitations. We perform numerical calculations on the sinh-Gordon model, a deformation of the free boson theory, and we obtain that by turning on the interaction the density function develops fermionic properties. The calculations are facilitated by a previously unnoticed property of the thermodynamic Bethe ansatz construction.
description: 14 pages, 7 figures. v2: acknowledgments added and some typos corrected, v3: extended discussion, new section added about exact low energy properties, published version
A Hybrid Strong/Weak Coupling Approach to Jet Quenching
Creators: name: Casalderrey-Solana, Jorge
name: Gulhan, Doga Can
name: Milhano, José Guilherme
name: Pablos, Daniel
name: Rajagopal, Krishna
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We propose and explore a new hybrid approach to jet quenching in a strongly coupled medium. The basis of this phenomenological approach is to treat physics processes at different energy scales differently. The high-$Q^2$ processes associated with the QCD evolution of the jet from production as a single hard parton through its fragmentation, up to but not including hadronization, are treated perturbatively. The interactions between the partons in the shower and the deconfined matter within which they find themselves lead to energy loss. The momentum scales associated with the medium (of the order of the temperature) and with typical interactions between partons in the shower and the medium are sufficiently soft that strongly coupled physics plays an important role in energy loss. We model these interactions using qualitative insights from holographic calculations of the energy loss of energetic light quarks and gluons in a strongly coupled plasma, obtained via gauge/gravity duality. We embed this hybrid model into a hydrodynamic description of the spacetime evolution of the hot QCD matter produced in heavy ion collisions and confront its predictions with jet data from the LHC. The holographic expression for the energy loss of a light quark or gluon that we incorporate in our hybrid model is parametrized by a stopping distance. We find very good agreement with all the data as long as we choose a stopping distance that is comparable to but somewhat longer than that in ${\cal N}=4$ supersymmetric Yang-Mills theory. For comparison, we also construct alternative models in which energy loss occurs as it would if the plasma were weakly coupled. We close with suggestions of observables that could provide more incisive evidence for, or against, the importance of strongly coupled physics in jet quenching.
description: 47 pages, 10 figures, typos corrected. Small mistake in the implementation of the Gluaber Monte-Carlo for the collision geometry corrected. Correction results in small changes to values of fitted parameters and to plots. No changes to any discussion or conclusions
The geometry of Newton strata in the reduction modulo $p$ of Shimura varieties of PEL type
Creators: name: Hamacher, Paul
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14G35, 14L05 (Primary), 20G25 (Secondary)

description: In this paper we study the Newton stratification on the reduction of Shimura varieties of PEL type with hyperspecial level structure and the Newton stratification on the deformation space of a Barsotti-Tate group with PEL structure. Our main result is a formula for the dimension of Newton strata and the description their closure in each of the two cases. Furthermore, we calculate the dimension of some Rapoport-Zink spaces as an intermediate result.
description: 56 pages; v2: corrected some typos, gave more detailed introduction and added a sketch for the idea behind the definition of "numerical dimension" at the beginning of section 10
Development towards autonomous navigation and automatic handling of palletized freight units by an autonomous vehicle with forks
Creators: name: MASOOD, KHAYYAM
Publisher: name: Universit� degli studi di Genova
Year: 2021

description: In the mobile robots community, particular interest in research in autonomous vehicles has been carried out extensively since the last decade. However, the role of mobile robots capable of delivering freight for the last-mile delivery solution is still under study. Freight Urban Robotic vehicle; FURBOT is one such vehicle that is being developed continuously for the last-mile delivery solution. The difference in this vehicle is the capability to load the freight into itself without physical human intervention. Currently, the vehicle is a complete drive-by-wire vehicle, and studies are being conducted to introduce autonomous capabilities in the vehicle. This thesis is an attempt forward in that direction. Three different aspects of the vehicle, which include; autonomous navigation, autonomous freight handling capabilities, and technical management associated with this upgrading, are studied in this thesis. A mathematical model for the vehicle was built for autonomous navigation, which did not exist beforehand for the vehicle. After developing the model, obstacle avoidance techniques were created, and the controller was verified for the proposed methods. The highlight of the thesis involves enhancing the capabilities of an already built freight handling structure. This involves upgrading the pre-existing pallet handling robot, parking pose generation for autonomous freight handling and the design of the approach to the specific parking pose. To complete the vehicle?s journey from a drive-by-wire to an autonomous vehicle, in-depth analysis is performed, incorporating studies for the vehicle?s amalgamation in the urban environment. Additionally, handover strategies are also studied in case of the vehicle fails during its autonomous drive. The outcome of this research produced multiple enhancements for the vehicle, including independent parking pose generation, correct categorization of the vehicle, software and hardware requirements, conservation of energy in pallet handling robot, and designing digital twin for the vehicle. Extensive simulation-based validations are carried out for the proposed research, which produced desirable results for the vehicle and thus has created a baseline for the way forward for converting the vehicle into a complete autonomous one.
A Study Investigating Corporate Social Responsibility (CSR) and Financial Performance of Retail Industry in the UK
Creators: name: Sughra, Ghulam
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Corporate governance
Other commerce, management, tourism and services not elsewhere classified

description: The study explored the empirical links between corporate social responsibility (CSR) and financial performance of four retail companies (Marks and Spencer, Tesco, Next and Primark) in the UK from 2006-2014. Prior studies have reported the relationships between CSR and financial performance generally as positive, negative or mixed, using either primary or secondary research methods, but the results have been inconclusive. This research has attempted to clarify these with deductive and mixed method approaches. First, donations, community work and carbon emissions were deducted from the literature and the companies’ websites, annual reports and CSR reports, as the CSR dimensions, and mapped out onto the companies’ revenue, operating profits and return on capital employed using correlation analysis. Second, 250 mall intercept survey questionnaires were administered to London retail shoppers and analyzed to explain their perceptions on the identified CSR dimensions and sales revenue of the selected retail companies. The secondary data was analyzed with correlations whereas primary data was explored with descriptive statistics and factor analysis. For both methods, the findings revealed a positive correlation between donations and sales revenue (perceived sales revenue) for all the companies except Primark where the donation criterion was not applicable. The implication of this is that, retail managers can imply philanthropic strategies to improve sales revenue. But, findings from both methods show negative correlation between carbon emissions and (perceived) sales revenue for both Marks and Spencer and Tesco whereas community work relates negatively with (perceived) sales revenue for Tesco. Methodologically, these provide some indications that retailers’ philanthropic activities can boost sales growth. Future research can widen the methodological approach to different sectors.URI
title: Servant leadership and employee engagement: a qualitative study
Creators: name: Canavesi, Alice
name: Minelli, Eliana
Publisher: name: Università Carlo Cattaneo - LIUC
Year: 2021

description: Servant Leadership is a holistic approach whereby leaders act with morality, showing great concern for the company’s stakeholders and engaging followers in multiple dimensions, such as emotional, relational and ethical, to bring out their full potential and empower them to grow into what they are capable of becoming. Servant  leadership  has  been  linked  through  various  mediators  to  positive  individual  and  collective outcomes,  including  behavioral,  attitudinal,  and  performance.  Among  follower  attitudinal  outcomes,  the present study aims at deepening the relationship between servant leadership and employee engagement in  a  large  Italian  consulting  firm;  first,by  assessing  the  implementation of  a  servant leadership  approach through a survey based on SL-7; second,by qualitatively investigating the servant leadership experiences lived  by  junior  employees  and  their  influence  on  individual  engagement  though  a  semi-structured questionnaire.  The  findings  of  the  study  suggest  that  employee  engagement  is  positively  influenced  by servant  leadership  through  various  mediators,  either  leader-centered,  such  as  empowerment,  team-centered,  such  as  team  cohesion,  organization-centered,  such  as  positive  organizational  climate,  job-centered, such as challenging tasks, and employee-centered, such as proactive personality. Some factors also  emerged   to   hinder the   relationship   between   servant   leadership   and   employee   engagement, particularly  those  related  to  the  working  environment:namely,high  pressure,  poor  work-life  balance  and remote-working. The  article  also  provides  theoretical  and  practical  implications  and  identifies  potential areas for future research on servant leadership
description: Università Cattaneo Working Papers no. 11, 2021
Comparative study of non-Markovianity measures in exactly solvable one and two qubit models
Creators: name: Addis, C.
name: Bylicka, B.
name: Chruściński, D.
name: Maniscalco, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we present a detailed critical study of several recently proposed non-Markovianity measures. We analyse their properties for single qubit and two-qubit systems in both pure-dephasing and dissipative scenarios. More specifically we investigate and compare their computability, their physical meaning, their Markovian to non-Markovian crossover, and their additivity properties with respect to the number of qubits. The bottom-up approach that we pursue is aimed at identifying similarities and differences in the behavior of non-Markovianity indicators in several paradigmatic open system models. This in turn allows us to infer the leading traits of the variegated phenomenon known as non-Markovian dynamics and, possibly, to grasp its physical essence.
description: 20 pages, 6 figures. *These two authors contributed equally to this work. Previously known as, "What we talk about when we talk about non-Markovianity"
Mobility edge for cold atoms in laser speckle potentials
Creators: name: Delande, Dominique
name: Orso, Giuliano
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using the transfer matrix method, we numerically compute the precise position of the mobility edge of atoms exposed to a laser speckle potential, and study its dependence vs. the disorder strength and correlation function. Our results deviate significantly from previous theoretical estimates using an approximate self-consistent approach of localization. In particular we find that the position of the mobility edge in blue-detuned speckles is much lower than in the red-detuned counterpart, pointing out the crucial role played by the asymmetric on-site distribution of speckle patterns.
description: 5 pages, 3 figures, plus Supplemental Material (3 pages, 3 figures)
Affine LIBOR models with multiple curves: theory, examples and calibration
Creators: name: Grbac, Zorana
name: Papapantoleon, Antonis
name: Schoenmakers, John
name: Skovmand, David
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Finance (q-fin.MF)
subject: Probability (math.PR)
subject: Pricing of Securities (q-fin.PR)
subject: FOS: Economics and business
subject: FOS: Mathematics
subject: 91G30, 91G20, 60G44

description: We introduce a multiple curve framework that combines tractable dynamics and semi-analytic pricing formulas with positive interest rates and basis spreads. Negatives rates and positive spreads can also be accommodated in this framework. The dynamics of OIS and LIBOR rates are specified following the methodology of the affine LIBOR models and are driven by the wide and flexible class of affine processes. The affine property is preserved under forward measures, which allows us to derive Fourier pricing formulas for caps, swaptions and basis swaptions. A model specification with dependent LIBOR rates is developed, that allows for an efficient and accurate calibration to a system of caplet prices.
description: 42 pages, 11 figures. Updated version, added section on negative rates and positive spreads
Design and characterization of doped Lithium Rich Layered Oxides for Lithium Ion Battery
Creators: name: CELESTE, ARCANGELO
Publisher: name: Universit� degli studi di Genova
Year: 2022

description: Lithium-Rich Layered Oxides (LRLO) are opening new frontiers for high-capacity/high-voltage positive electrodes in Li-ion batteries to meet the challenges of green and safe transportation as well as cheap and sustainable stationary energy storage from renewable sources. LRLO exploit the extra-lithiation provided by the Li1.2TM0.8O2 stoichiometries to disclose specific capacities beyond 200-250 mAhg-1 and working potentials in the 3.4-3.8V vs Li. In my thesis, I demonstrated a novel doping strategy by the substitution of cobalt in the transition metal layer of the lattice with aluminum and lithium, resulting in new optimized layered materials, i.e. Li1.2+xMn0.54Ni0.13Co0.13-x-yAlyO2, with outstanding electrochemical performance in full Li-ion batteries, improved environmental benignity and reduced manufacturing costs compared to the state-of-the-art. Furthermore, the last step deals the application of over-lithiation to demonstrate experimentally a Co-free over-lithiated LRLO material, i.e. Li1.25Mn0.625Ni0.125O2. After that, my research focused on a novel approach to investigate the structural complexity of pristine materials, involving the use of supercells, i.e. unit cells larger than the conventional ones, and FAULTS software, to take into account the staking faults defects. A combination of ex situ techniques has been used as a tool to understand the structural evolution of Li1.28Mn0.54Ni0.13Co0.02Al0.03O2. This part of the research identified that significant changes occurred during electrochemical cycling, showed the irreversible changes in the cell parameters and the presence of a new phase. Finally, innovative non-aqueous electrolytes for Li-ion batteries with superior safety features were investigated. Three ionic liquid, Pyr1,nTFSI with n=4,5,8, have been used as addditive to improve liquid electrolytes. These electrolyte formulations have been analyzed by comparing chemical-physical properties and electrochemical stability.
The impact of strategic planning on the performance of small and medium-sized businesses in Nigeria
Creators: name: Obaje, Arome
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Other commerce, management, tourism and services not elsewhere classified

description: This cross-sectional research explores the relationship between strategic planning practices and performance of SMEs in the Nigerian service-related sector, to establish empirically whether adopting strategic planning impacts performance, as previous studies covering the developed world have found. It appraises the attitudes to and perceptions of SME owners and managers in Nigeria towards strategic planning, to determine if strategic planning adoption impacts on performance. It also attempts to ascertain the extent to which SMEs in the Nigerian service-related sector make use of strategic planning and the role the peculiar Nigerian socio-cultural dynamics (such as the patronage culture, corruption, religion, societal norms, and education) play in hampering adoption. It intends to provoke debate about and generate awareness of the need for Nigerian SMEs to plan strategically for continuity. It also presents a framework for deducing the relationship between strategic planning and SMEs’ effectiveness from the Nigerian perspective. A mixed methods approach was adopted and primary data were collected from owners and managers of SMEs, using both questionnaires (136) and semi-structured interviews (20). The findings indicated a low level of strategic planning adoption among Nigerian SMEs, partly due to the social factors mentioned. They corroborate findings from extant research covering the developed world, that adopting strategic planning impacts positively on the performance of SMEs. The study suggests that systematic re-orientation is required, for SME owners in Nigeria to embrace the concept of long-term planning for continuity, and for responsible government agencies to actively promote it. Finally, this study extended and expanded the scope of previous research by proposing a model suggesting that the decision to adopt strategic planning depended partly on the business and owners’ attributes, and partly on the socio-cultural influences of the business location and business owners’ socio-cultural orientation.
Valorisation of sludge biomass obtained from civil and industrial wastewater treatment plants (WWTPs)
Creators: name: XXX, RESHMA BABU
Publisher: name: Universit� degli studi di Genova
Year: 2022

description: The increasing worldwide energy consumption, higher energy requirements for future, exhaustion of fossil fuel resources and global warming have driven researchers to utilize renewable sources such as biomass to meet energy demands. As of 2020 in Europe about 13 million tons of dry solids were produced annually by wastewater treatment plants (WWTPs) and only in few cases it is valorised from an energy point of view, thereby minimizing its environmental impact. The main aim of the PhD project was to explore experimental strategies to valorise the sludge biomass obtained from civil and industrial WWTPs. Several sludge treatment methods have been explored in this work to enhance sludge hydrolysis including mechanical, chemical, thermal, and hydrothermal treatments. The treatments were focused on destroying microbial cell structure and releasing organics and the effect of different treatments on sludge solubilization was investigated. Furthermore, an effort to valorise both the solid and liquid fractions of the hydrothermally treated samples were done. Point of interest was to use the solid fraction to estimate bioenergy potential while on the liquid, recovery of organic molecules was attempted. In addition to this, raw sludge was attempted to be valorised by subjecting it to pyrolysis experiments. A small part of the PhD research was also dedicated to studying the valorisation of brewer?s spent grains (BSG) which is by product of beer manufacturing process in Poland.
Learning Wellness: A case study of a wellbeing initiative through the lens of organisational learning
Creators: name: Manalang, Rameses T.
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Human resources management

description: Research and practice on wellbeing programmes have been growing and evolving over the years. Nevertheless, the challenges in designing, implementing and sustaining these initiatives in organisations are also predominant in extant literature, where the Human Resource Management (HRM) practice has taken an important role and responsibility in promoting these initiatives. This study helps bridge HRM and wellness, which have traditionally been separate strands of activity and research. It investigates how a wellbeing initiative is learnt and embedded within an organisation using the lens of organisational learning. It also aims to examine the dynamic relationship between the learning of wellness with a number of factors including general happiness and attitudes towards the wellness dimensions. It is a single case study of a global manufacturing company with a strong presence in the Philippines which spearheaded a wellness programme to its employees. Using a mixed methods research design (QUAL & QUAN), a model of wellness learning in the organisation was developed. This is an integrative model utilising the existing frameworks and models on wellbeing and organisational learning. This study shows the viability of an organisational learning lens to wellbeing programmes as an alternative or a complementary approach to existing frameworks and models on workplace wellbeing. Five factors in the organisational learning of wellbeing emerged. In the end, three dominant themes also surfaced about the wellness programme in the said organisation, namely: a social element to wellness, a work-wellness conflict and a wellness lag. This wellness lag is driven by a structural element built-in within the organisation, which is further compounded by the financial constraints which may come upon certain actors, delimiting their participation in the programme. This study endeavours to contribute to our understanding about wellbeing programmes in the context of a developing country like the Philippines, where these initiatives are already being identified as one of the mechanisms in nation building. This extension of knowledge is especially useful in theory building as well as in practice in effectively implementing these initiatives in organisations. Future researchers on wellness programmes could further look into the learning of wellbeing in other organisational contexts. Focus could also be made specifically on the structural, cultural, financial and institutional elements which may impinge on these wellness programmes, using higher order quantitative analysis methods like confirmatory factor analysis (CFA) or structural equation modelling (SEM).
Modelling, Control and Optimization of Modular Reconfigurable Robots
Creators: name: ROMITI, EDOARDO
Publisher: name: Universit� degli studi di Genova
Year: 2022

description: Modular reconfigurable robots are robotic systems offering new opportunities to rapidly create fit-to-task flexible automation lines. The recent trends of increasingly varying market needs in low-volume high-mix manufacturing demands for highly adaptable robotic systems like this. In this context, methods for quickly and automatically generating a modular robot model and controller should be developed. Moreover, modularity and reconfigurabilty open up new opportunities for on-demand robot morphology optimization for varying tasks. Therefore a method to optimize the robot design for a certain criterion should be provided in order to exploit the full potential of reconfigurable robots. In this thesis, a complete hard- and software architecture for a modular reconfigurable EtherCAT-based robot is presented. This novel approach allows to automatically reconstruct the topology of different robot structures, composed of a set of body modules, each of which represents an EtherCAT slave. This approach enables to obtain in an automatic way the kinematic and dynamic model of the robot and store it in URDF format as soon as the physical robot is assembled or reconfigured. The method also automatically reshapes a generic optimization-based controller to be instantly used after reconfiguration. Finally, a study and analysis on how to find the best suited reconfigurable robot morphology for a given task are presented, starting from a fixed set of joint and link modules. In particular, is shown how exploiting multi-arm robotic systems and modifying the relative and absolute positions of their bases, can expand the solution space for a given task. Results obtained in simulations for different tasks, are verified with real-world experiments using a in-house developed reconfigurable robot prototype.
Motion in classical field theories and the foundations of the self-force problem
Creators: name: Harte, Abraham I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: This article serves as a pedagogical introduction to the problem of motion in classical field theories. The primary focus is on self-interaction: How does an object's own field affect its motion? General laws governing the self-force and self-torque are derived using simple, non-perturbative arguments. The relevant concepts are developed gradually by considering motion in a series of increasingly complicated theories. Newtonian gravity is discussed first, then Klein-Gordon theory, electromagnetism, and finally general relativity. Linear and angular momenta as well as centers of mass are defined in each of these cases. Multipole expansions for the force and torque are then derived to all orders for arbitrarily self-interacting extended objects. These expansions are found to be structurally identical to the laws of motion satisfied by extended test bodies, except that all relevant fields are replaced by effective versions which exclude the self-fields in a particular sense. Regularization methods traditionally associated with self-interacting point particles arise as straightforward perturbative limits of these (more fundamental) results. Additionally, generic mechanisms are discussed which dynamically shift --- i.e., renormalize --- the apparent multipole moments associated with self-interacting extended bodies. Although this is primarily a synthesis of earlier work, several new results and interpretations are included as well.
description: 68 pages, 1 figure
Halo modelling in chameleon theories
Creators: name: Lombriser, Lucas
name: Koyama, Kazuya
name: Li, Baojiu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We analyse modelling techniques for the large-scale structure formed in scalar-tensor theories of constant Brans-Dicke parameter which match the concordance model background expansion history and produce a chameleon suppression of the gravitational modification in high-density regions. Thereby, we use a mass and environment dependent chameleon spherical collapse model, the Sheth-Tormen halo mass function and linear halo bias, the Navarro-Frenk-White halo density profile, and the halo model. Furthermore, using the spherical collapse model, we extrapolate a chameleon mass-concentration scaling relation from a LCDM prescription calibrated to N-body simulations. We also provide constraints on the model parameters to ensure viability on local scales. We test our description of the halo mass function and nonlinear matter power spectrum against the respective observables extracted from large-volume and high-resolution N-body simulations in the limiting case of f(R) gravity, corresponding to a vanishing Brans-Dicke parameter. We find good agreement between the two; the halo model provides a good qualitative description of the shape of the relative enhancement of the f(R) matter power spectrum with respect to LCDM caused by the extra attractive gravitational force but fails to recover the correct amplitude. Introducing an effective linear power spectrum in the computation of the two-halo term to account for an underestimation of the chameleon suppression at intermediate scales in our approach, we accurately reproduce the measurements from the N-body simulations.
description: 25 pages, 4 figures; v2: typos corrected, matches published version
ADDITIVE MANUFACTURING AND 3D PRINTING IN DENTISTRY
Creators: name: SOLIMEI, LUCA
Publisher: name: Universit� degli studi di Genova
Year: 2022

description: CAD / CAM techniques applied to solving dental problems demonstrate that there are many solutions available on the market to help the dentist individually perform the rehabilitation of a dental element to meet the specific needs of each patient. These manufacturing technologies close a digital workflow, potentially managed entirely by the dentist, which involves taking the impression of the oral cavity and the dental elements present through an intraoral scanner with the generation of a file on which to create the CAD project and to start extrapolating the file of the final work to be produced by subtractive or additive CAM. The 3D printing techniques allow to work easily with polymeric and ceramic materials, in order to create dental crowns that can satisfy practically all the needs encountered in the dental field. Leaving aside the techniques applied to polymers, this PhD project focuses on the applications of ceramic materials. This PhD thesis focuses on the design, study and implementation of 3D printing of ceramic supports specifically dedicated to the stabilization of dental implants. Through the development of a prototype of a 3D printer, it was possible to obtain the printing of ceramic products useful for the intended purpose.
Harmonic Maps into Homogeneous Spaces According to a Darboux Homogeneous Derivative
Creators: name: Santana, Alexandre J.
name: Stelmastchuk, Simão N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Our purpose is to use a Darboux homogenous derivative to understand the harmonic maps with values in homogeneous space. We present a characterization of these harmonic maps from the geometry of homogeneous space. Furthermore, our work covers all type of invariant geometry in homogeneous space.
The magnetic phase diagram of underdoped YBa2Cu3Oy inferred from torque magnetization and thermal conductivity
Creators: name: Yu, Fan
name: Hirschberger, Max
name: Loew, Toshinao
name: Li, Gang
name: Lawson, Benjamin J.
name: Asaba, Tomoya
name: Kemper, J. B.
name: Liang, Tian
name: Porras, Juan
name: Boebinger, G. S.
name: Singleton, J.
name: Keimer, B.
name: Li, Lu
name: Ong, N. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Strong evidence for charge-density correlation in the underdoped phase of the cuprate YBa2Cu3Oy was obtained by nuclear magnetic resonance (NMR) and resonant x-ray scatter- ing. The fluctuations were found to be enhanced in strong magnetic fields. Recently, 3D (three dimensional) charge-density wave (CDW) formation with long-range order (LRO) was observed by x-ray diffraction in H >15 T. To elucidate how the CDW transition impacts the pair condensate, we have used torque magnetization to 45 T and thermal conductivity $κ_{xx}$ to construct the magnetic phase diagram in untwinned crystals with hole density p = 0.11. We show that the 3D CDW transitions appear as sharp features in the susceptibility and $κ_{xx}$ at the fields HK and Hp, which define phase boundaries in agreement with spectroscopic techniques. From measurements of the melting field Hm(T) of the vortex solid, we obtain evidence for two vortex solid states below 8 K. At 0.5 K, the pair condensate appears to adjust to the 3D CDW by a sharp transition at 24 T between two vortex solids with very different shear moduli. At even higher H (42 T) the second vortex solid melts to a vortex liquid which survives to fields well above 45 T. de Haas-van Alphen oscillations appear at fields 24-28 T, below the lower bound for the upper critical field Hc2.
description: 7 pages, 8 figures; New version of previous posting, reporting torque measurements to 45 Tesla and final magnetic phase diagram
Data for: Nonlinear losses in magnon transport due to four-magnon scattering
Creators: name: Hula, Tobias
name: Schultheiß, Katrin
name: Buzdakov, Aleksandr
name: Körber, Lukas
name: Bejarano, Mauricio
name: Flacke, Louis
name: Liensberger, Lukas
name: Weiler, Mathias
name: Shaw, Justin M.
name: Nembach, Hans T.
name: Faßbender, Jürgen
name: Schultheiß, Helmut
Publisher: name: Rodare
Year: 2020

description: We utilized the following methods in order to obtain the presented data: micro focused Brilluoin light scattering (BLS), micromagnetic simulations in MuMax3 and micro focused magneto-optical Kerr effect (MOKE). The experimental data were obtained on the sample which is labeled with: 'CoFe_WMI_6'. On that sample, we investigated the structures 'E1' and 'F1' which are essentially rectangular stripes (5 micrometer x 65 micrometer, thickness: 30 nm) out of Co25Fe75 alloy. The metadata for all measurements (including ALL parameters) are included in the uploaded primary data subdirectories. The references to the directory of the measured data within our local IT infrastructure are given along with the files themselves. All scripts that were used for data analysis (in Python) are included as well with a short description.
Evaluation of retinal, choroidal and peripapillary vascular flow in patients with Thyroid Associated Ophthalmopathy (TAO) using Optical Coherence Tomography Angiography (OCT-A)
Creators: name: DEL NOCE, CHIARA
Publisher: name: Universit� degli studi di Genova
Year: 2022

description: Purpose: The aim of this study was to evaluate changes in choroidal thickness and in choroidal vascular blood flow in patients with TAO and their relationship with clinical features and disease activity using SD-OCT and Angio-OCT technology. Methods: Eighteen patients and control subjects underwent a complete eye examination, OCT and angio - OCT. We also obtained angiographic scans at 3 different consecutive levels (L1, L2 and L3) below the choriocapillary. Results: The subfoveal choroid was significantly thicker in TAO patients than the control eyes (285.6275 � 32.5 ?m compared to 135.89 � 19.8 ?m, respectively, p = 0.0089). The correlation analysis in the TAO group showed a significant correlation between the choroidal thickness and EUGOGO clinical score (r = 0.84, p = 8.44032E - 07). Vascular flow of choriocapillary was markedly reduced in subjects with TAO compared to healthy subjects (49.78 � 4.5 vs. 53.36 � 1.07; p = 2.5105E - 07) and vascular flow of the deeper layer L3 resulted higher in subjects with TAO than in healthy subjects (46.9 � 20.23 and 41.475 � 3.06; p = 0.01168). Conclusions: Subfoveal choroidal thickness and choroidal blood flow were significantly different in patients with TAO compared to healthy subjects.
Kiterjesztett logisztikai kontrolling
Creators: name: Balogh, Antal
name: Zéman, Zoltán
Publisher: name: BI-KA LOGISZTIKA Kft.
Year: 2021

description: Logisztikai trendek és legjobb gyakorlatok (Nyomtatott ISSN: 2416-0555, Online ISSN: 2560-0362), 2021. december, VII. évfolyam, 2. szám
On projective symmetries on Finsler Spaces
Creators: name: Lajmiri, Behnaz
name: Bidabad, Behroz
name: Rafie-Rad, Mehdi
name: Aryanejad-Keshavarzi, Yadollah
Publisher: name: arXiv
Year: 2023
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: There are two definitions of Einstein-Finsler spaces introduced by Akbar-Zadeh, which we will show is equal along the integral curves of $I$-invariant projective vector fields. The sub-algebra of the $C$-projective vector fields, leaving the $H$-curvature invariant, has been studied extensively. Here we show on a closed Finsler space with negative definite Ricci curvature reduces to that of Killing vector fields. Moreover, if an Einstein-Finsler space admits such a projective vector field then the flag curvature is constant. Finally, a classification of compact isotropic mean Landsberg manifolds admitting certain projective vector fields is obtained with respect to the sign of Ricci curvature.
description: 25 pages
Nanoparticles and biomembranes as models for aggregation in the biological environment
Creators: name: LAVAGNA, ENRICO
Publisher: name: Universit� degli studi di Genova
Year: 2022

description: Nanoparticles are ever more present in our bodies, both as devices engineered for biomedical applications and as incidental intruders. Moreover, nanoparticles can be exploited as biomimetic devices, able to reproduce specific properties of relevant biological macromolecules, such as proteins, thanks to their design flexibility at the synthesis level. In each case, their fate in the biological environment is determined, among other properties, by their aggregation behavior. For this reason, it is crucial to understand the physical driving forces that underlie their aggregation, whether in water or at the biomembrane interface. When the aggregation takes place at the scale of a few nanometers, complex molecular mechanisms, detectable by high-resolution computer simulations, mediate the interactions. Coarse grained force fields offer a sweet spot in modeling these systems: while maintaining a relevant portion of molecular detail, they allow the study of the collective behavior of nanosized objects and large patches of lipid bilayers. This thesis uses coarse grained simulations to study the aggregation of nanoparticles with hydrophobic or functionalized amphiphilic surfaces in water and in membranes. In both environments, we find that the reshaping of the soft interfaces of these systems (NP-membrane and NP-NP) is the common factor driving the formation of unexpected aggregates, which assume peculiar, non-isotropic configurations. Our results pave the way to the rational design of nanoparticles with targeted aggregation properties due to the tunability of their ligand shell composition, core shape, and size. Moreover, many of the observed mechanisms can be generalized to understand the interactions of similar relevant biological macromolecules, such as proteins.
Ain-El-Turck 049
Creators: name: Corsner, Private.
Publisher: name: Galter Health Science Library & Learning Center
Year: 2019

description: July 43 MM-MBS-COR-43-7118 Oran, N.A. 12th Gen. Hosp. X-Ray Dept - office and files. L to R - Lt Col. Earl R. Crowder, Cpl. D. Schati, Lt. Roy F. Dent, Jr., Sgt. S. Cloutier, Cpl. A. Brunson. Photographer - Pvt. Corsner.