cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Interacting spinning fermions with quasi-random disorder
Creators: name: Mastropietro, Vieri
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Interacting spinning fermions with strong quasi-random disorder are analyzed via rigorous Renormalization Group (RG) methods combined with KAM techniques. The correlations are written in terms of an expansion whose convergence follows from number-theoretical properties of the frequency and cancellations due to Pauli principle. A striking difference appears between spinless and spinning fermions; in the first case there are no relevant effective interactions while in presence of spin an additional relevant quartic term is present in the RG flow. The large distance exponential decay of the correlations present in the non interacting case, consequence of the single particle localization, is shown to persist in the spinning case only for temperatures greater than a power of the many body interaction, while in the spinless case this happens up to zero temperature.
New Gold Standard for Olefin Production: Supersonic Steam Cracking
Creators: name: Bonheure, Mike
name: Johnson, Rejish L.
name: Verstraete, Tom
name: Van Geem, Kevin M.
Publisher: name: Zenodo
Year: 2022

description: Climate change, a problem created by people that goes far beyond national borders, requires a coordinated solution with drastic mindset changes at all levels of our current society. In this respect, the chemical industry will play an essential and crucial role in the development of a circular and sustainable economy provided that it becomes CO2-neutral itself. There is no single nor simple solution to curb GHG emissions, but electrification is a step in the right direction. Electrification will, however, require massive quantities of cheap net zero-carbon electricity. Yet that will not suffice to shift from conventional to electrified processes. Current chemical plants are not designed for the swift integration of electricity. To enhance energy efficiency and product yield and thus profit margins, the -often outdated- production processes need to be reinvented. This is where electrification offers numerous opportunities. In this work, a drastically new chemical reactor concept is introduced for the decarbonization of hydrocarbon cracking. Instead of using fossil-fuel-driven furnaces, this novel design relies on the acceleration of the reactant to supersonic velocities through the rotational movement of a rotor. Strategically located diffusers allow a reduction in the flow velocity. This movement in particular generates stationary shockwaves across which the flow decelerates from supersonic to subsonic velocities. Hence, velocity is being traded for enthalpy, resulting in heating times for shock-heated gases in the order of nanoseconds. To assess the reactor potential, computational models have been developed and used for comparison with the current state-of-the-art steam cracking furnaces.
Role of Sense of Calling for Job Performance and Job Satisfaction in Public Universities: Lessons from Addis Ababa
Creators: name: Yohannes, Mindaye
Publisher: name: African Journal of Leadership and Development
Year: 2021

description: The purpose of this research is to investigate the role of sense of calling on job satisfaction and job performance. Employee sense of calling and vocation (the meaning and purpose people attach towards a particular line of work) is considered as a significant element for job satisfaction, engagement and other positive organizational behaviors. The study investigated the role of sense of calling on job satisfaction and performance among academicians of public universities in Addis Ababa. Quantitative method was chosen to collect representative and reliable data from the participants. Multidimensional calling and vocation questionnaire (CVQ), job satisfaction scale (JSS) and Individual Work Performance Questionnaire (IWPQ) were used as a tool. The study employed random sampling technique to select research participants from four sampled universities. The data was analyzed using descriptive statistics such as frequencies, percentages, means, standard deviations etc. Besides, correlation analysis was conducted to investigate the relationship between the variables. The findings of the research informs university and top level government leaders about the level of academicians’ job satisfaction which can be manipulated by personal sense of vocational calling. Besides, the study creates awareness about the impact of sense of calling/vocation on job satisfaction and job performance. The result of the study shows that the sampled academicians have a moderate sense of calling dimensions. Most academicians have a high sense of pro-social orientation whereas, a significant percentage of them are still searching for a better pro-social orientation. The descriptive statistics also confirmed that the level of extrinsic satisfaction of academicians is low whereas the intrinsic dimensions of job satisfaction are moderate. The statistics showed that the level of academicians’ task performance and contextual performance are moderate. Besides, the study uncovered that academicians occasionally exhibited work counterproductive behaviour. The study also witnessed the absence of significant relationship between sense of calling and job satisfaction dimensions called extrinsic and intrinsic job satisfaction. The moderate senses of calling infer that the studied academicians consider their job as an ordinary task. However, the existence of high sense of pro-social orientation implies that academicians suppose their occupation as respected though they are still yearning for the most prized job.
description: African Journal of Leadership and Development, Vol. 6 No. 1 (2021): Job Performance
Nuclear Numerical Range and Quantum Error Correction Codes for non-unitary noise models
Creators: name: Lipka-Bartosik, Patryk
name: Życzkowski, Karol
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a notion of nuclear numerical range defined as the set of expectation values of a given operator $A$ among normalized pure states, which belong to the nucleus of an auxiliary operator $Z$. This notion proves to be applicable to investigate models of quantum noise with block-diagonal structure of the corresponding Kraus operators. The problem of constructing a suitable quantum error correction code for this model can be restated as a geometric problem of finding intersection points of certain sets in the complex plane. This technique, worked out in the case of two-qubit systems, can be generalized for larger dimensions.
description: 22 pages, 3 figures
Towards a Gravity Dual for the Large Scale Structure of the Universe
Creators: name: Kehagias, A.
name: Riotto, A.
name: Sloth, M. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The dynamics of the large-scale structure of the universe enjoys at all scales, even in the highly non-linear regime, a Lifshitz symmetry during the matter-dominated period. In this paper we propose a general class of six-dimensional spacetimes which could be a gravity dual to the four-dimensional large-scale structure of the universe. In this set-up, the Lifshitz symmetry manifests itself as an isometry in the bulk and our universe is a four-dimensional brane moving in such six-dimensional bulk. After finding the correspondence between the bulk and the brane dynamical Lifshitz exponents, we find the intriguing result that the preferred value of the dynamical Lifshitz exponent of our observed universe, at both linear and non-linear scales, corresponds to a fixed point of the RGE flow of the dynamical Lifshitz exponent in the dual system where the symmetry is enhanced to the Schrodinger group containing a non-relativistic conformal symmetry. We also investigate the RGE flow between fixed points of the Lifshitz dynamical exponent in the bulk and observe that this flow is reflected in a growth rate of the large-scale structure, which seems to be in qualitative agreement with what is observed in current data. Our set-up might provide an interesting new arena for testing the ideas of holography and gravitational duals.
description: V2: 29 pages, 3 figures. Some sentences in the intro. reformulated
Practices, Knowledge, and Attitudes of Nephrologists Towards Prescribing and Monitoring Vancomycin at Dialysis Centers
Creators: name: Alghanem, Sarah S
name: Al-Otaibi, Manar
name: Awad, Abdelmoneim
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Medicine
Biotechnology
Biological Sciences not elsewhere classified
Marine Biology
Cancer
Science Policy
Mental Health

description: Vancomycin dosing protocols are varied in the literature for hemodialysis patients. This study sought to determine nephrologists’ practices, knowledge, attitudes, and barriers toward prescribing and monitoring vancomycin at dialysis centers. A cross-sectional and multi-center study was conducted in Kuwait using a validated self-administered questionnaire among 168 nephrologists. Descriptive and comparative analyses were performed using SPSS (version 28). The response rate was 75% (n = 126). Over half of nephrologists frequently prescribed a vancomycin loading dose of 1000 mg (53.2%) and a maintenance dose of 500 mg (51.6%) to all patients. Their overall median (IQR) percentage knowledge about the therapeutic monitoring of vancomycin was 66.7% (33.3) and was found to be higher in nephrologists aged ≤ 40 years and in registrars/senior registrars (p < 0.05). Their overall median (IQR) attitude score was 4.0 (1.0) [positive attitude]. Nephrologists with > 15 years of practice experience expressed higher attitudes (p < 0.05). The top two perceived barriers were a lack of clear local hospital/national guidelines (60.3%) for vancomycin dosing in dialysis and inconsistencies among different dosing references and guidelines (51.6%). Findings showed that nephrologists have varying practices, moderate knowledge, and positive attitudes toward prescribing and monitoring vancomycin and highlight the need for interventions to overcome the perceived barriers.
Analogy of QCD hadronization and Hawking-Unruh radiation at NICA
Creators: name: Tawfik, Abdel Nasser
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The proposed analogy of particle production from high-energy collisions and Hawking-Unruh radiation from black holes is extended to finite density (collisions) and finite-electric charge (black holes). Assuming that the electric charge is directly proportional to the density (or the chemical potential), it becomes clear that for at least two freezeout conditions; constant $s/T^3$ and $E/N$, the proposed analogy works very well. Dependence of radiation (freezeout) temperature on finite electric-charge leads to an excellent estimation for Kaon-to-pion ratio, for instance, especially in the energy range covered by NICA. The precise and complete measurements for various light-flavored particle yields and ratios are essential in characterizing Hawing-Unruh radiation from charged black holes and the QCD hadronization at finite density, as well.
description: 6 pages, 2 figures, accepted for publication in EPJA Topical Issue "NICA White Paper" (17th Feb. 2016)
Koukab Syed Interview
Creators: name: Institute For Diversity & Civic Life
name: Department Of Religious Studies
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Religions Texas
Dallas
disaster relief
education
fundraising
Immigrant
Kashmir
Helping Hand for Relief and Development
Nonprofit
Pakistan
Red Cross
youth engagement
Muslims
humanity work
care packages

description: This interview is with Koukab Syed, the regional manager for the Northwest Texas region of Helping Hand for Relief and Development. Koukab talks about her lifelong interest in service to others and finding her calling to humanitarian work by joining the International Red Cross. She speaks about joining Helping Hand after moving to the United States. Koukab describes the work she is a part of at Helping Hand, both her organization’s overseas programs and the volunteering and engagement she sees in her community.
Effect of temperature on spin-transfer torque induced magnetic solitons
Creators: name: Lendínez, Sergi
name: Hang, Jinting
name: Vélez, Saül
name: Hernàndez, Joan Manel
name: Backes, Dirk
name: Kent, Andrew D.
name: Macià, Ferran
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin-transfer torques in a nanocontact to an extended magnetic film can create spin waves that condense to form dissipative droplet solitons. Here we report an experimental study of the temperature dependence of the current and applied field thresholds for droplet soliton formation, as well as the nanocontact's electrical characteristics associated with droplet dynamics. Nucleation of droplet solitons requires higher current densities at higher temperatures, in contrast to typical spin-transfer torque induced switching between static magnetic states. Magnetoresistance and electrical noise measurements show that soliton instabilities become more pronounced with increasing temperature. These results are of fundamental interest in understanding the influence of thermal noise on droplet solitons, and in controlling their dynamics.
description: 12 pages, 3 figs (supplemental info 7pages, 6 figs)
Exact solution of the $D_3$ non-Abelian anyon chain
Creators: name: Braylovskaya, Natalia
name: Finch, Peter E.
name: Frahm, Holger
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Commuting transfer matrices for linear chains of interacting non-Abelian anyons from the two-dimensional irreducible representation of the dihedral group $D_3$ (or, equivalently, the integer sector of the $su(2)_4$ spin-$1$ chain) are constructed using the spin-anyon correspondence to a $D_3$-symmetric formulation of the XXZ Heisenberg spin chain. The spectral problem is solved using discrete inversion identities satisfied by these transfer matrices and functional Bethe ansatz methods. The resulting spectrum can be related to that of the XXZ spin-$1/2$ Heisenberg chain with boundary conditions depending on the topological sector of the anyon chain. The properties of this model in the critical regime are studied by finite size analysis of the spectrum. In particular, points in the phase diagram where the anyon chain realizes some of the rational $\mathbb{Z}_2$ orbifold theories are identified.
description: 22 pages
Query Answering with Transitive and Linear-Ordered Data
Creators: name: Amarilli, Antoine
name: Benedikt, Michael
name: Bourhis, Pierre
name: Boom, Michael Vanden
Publisher: name: arXiv
Year: 2016
Subjects: subject: Databases (cs.DB)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We consider entailment problems involving powerful constraint languages such as guarded existential rules, in which additional semantic restrictions are put on a set of distinguished relations. We consider restricting a relation to be transitive, restricting a relation to be the transitive closure of another relation, and restricting a relation to be a linear order. We give some natural generalizations of guardedness that allow inference to be decidable in each case, and isolate the complexity of the corresponding decision problems. Finally we show that slight changes in our conditions lead to undecidability.
description: 36 pages. To appear in IJCAI 2016. Extended version with proofs
Adverse childhood experiences and all-cause mortality risk in adulthood
Creators: name: D'Arcy-Bewick, Sinéad
name: Turiano, Nicholas
name: R.Sutin, Angelina
name: Terracciano, Antonio
name: Ó Súilleabháin, Páraic
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: Background: Adverse Childhood Experiences (ACEs) have been associated with mortality risk in adulthood. It is unclear, however, whether ACEs perpetrated beyond parents may be associated with mortality risk, if the risk is accumulative or plateaus at a certain frequency, whether associations differ dependent on ACE types, whether types interact with one another, or if observed effects differ by sex. Objective: To examine associations between ACEs and mortality risk. Participants and setting: 6319 participants (age range 25–74 years, mean [SD] 46.91 [12.95] years; 51.6 % female) followed from 1995/96 to 2018 as part of the survey of Midlife Development in the United States. Methods: ACE variables were self-reported exposure to 20 ACE types from five categories: physical abuse, emotional abuse, socioeconomic disadvantage, adverse family structure, and poor health at age 16 years. Cox proportional hazards models were used to estimate mortality risk. Results: ACEs were accumulatively associated with increased mortality risk in adjusted models (HR = 1.033; p ≤ .001, 95 % CI, 1.014–1.053). The association was linear. Only physical abuse (HR = 1.05; p = .024, 95 % CI, 1.01–1.10) remained significantly predictive of increased mortality risk adjusting for other types. No interaction by sex or amongst ACE types was observed. Conclusions: ACEs may be cumulatively associated with increased mortality risk, such that each individual ACE increases risk. Physical abuse may be an important ACE type within a mortality risk context. Individual ACE types warrant further study as each type may have their own differential impact on mortality risk.
Constraints on Primordial Magnetic Fields from Planck combined with the South Pole Telescope CMB B-mode polarization measurements
Creators: name: Zucca, Alex
name: Li, Yun
name: Pogosian, Levon
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A primordial magnetic field (PMF) present before recombination can leave specific signatures on the cosmic microwave background (CMB) fluctuations. Of particular importance is its contribution to the B-mode polarization power spectrum. Indeed, vortical modes sourced by the PMF can dominate the B-mode power spectrum on small scales, as they survive damping up to a small fraction of the Silk length. Therefore, measurements of the B-mode polarization at high-$\ell$ , such as the one recently performed by the South Pole Telescope (SPT), have the potential to provide stringent constraints on the PMF. We use the publicly released SPT B-mode polarization spectrum, along with the temperature and polarization data from the Planck satellite, to derive constraints on the magnitude, the spectral index and the energy scale at which the PMF was generated. We find that, while Planck data constrains the magnetic amplitude to $B_{1 \, \text{Mpc}} < 3.3$ nG at 95\% confidence level (CL), the SPT measurement improves the constraint to $B_{1 \, \text{Mpc}} < 1.5$ nG. The magnetic spectral index, $n_B$, and the time of the generation of the PMF are unconstrained. For a nearly scale-invariant PMF, predicted by simplest inflationary magnetogenesis models, the bound from Planck+SPT is $B_{1 \, \text{Mpc}} < 1.2$ nG at 95% CL. For PMF with $n_B=2$, expected for fields generated in post-inflationary phase transitions, the 95% CL bound is $B_{1 \, \text{Mpc}} < 0.002$ nG, corresponding to the magnetic fraction of the radiation density $Ω_{Bγ} < 10^{-3}$ or the effective field $B_{\rm eff} < 100$ nG. The patches for the Boltzmann code CAMB and the Markov Chain Monte Carlo engine CosmoMC, incorporating the PMF effects on CMB, are made publicly available.
description: 12 pages, 9 figures, 4 tables
Leptonic decay-constant ratio $f_K/f_π$ from clover-improved $N_f=2+1$ QCD
Creators: name: Scholz, Enno E.
name: Durr, Stephan
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The leptonic decay-constant ratio $f_K/f_π$ is calculated from lattice-QCD simulations using $N_f=2+1$ dynamical fermion flavors in the clover-improved formulation and 2-HEX smearing. The simulations were performed for a range of mass-degenerate light quarks including the physical point and at various lattice couplings and volumes, allowing to quantify all relevant sources of systematic uncertainties for our final number of the decay-constant ratio. Utilizing input from chiral perturbation theory, we also quote the charged decay-constant ratio $f_{K^\pm}/f_{π^\pm}$. With further input from super-allowed nuclear $β$-decays, eventually we obtain an estimate for the CKM-matrix element $V_{\rm us}$.
description: 7 pages, contribution to the 34th International Symposium on Lattice Field Theory (Lattice 2016)
Magnetic Domain Wall Floating on a Spin Superfluid
Creators: name: Upadhyaya, Pramey
name: Kim, Se Kwon
name: Tserkovnyak, Yaroslav
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically investigate the transfer of angular momentum between a spin superfluid and a domain wall in an exchange coupled easy-axis and easy-plane magnetic insulator system. A domain wall in the easy-axis magnet absorbs spin angular momentum via disrupting the flow of a superfluid spin current in the easy-plane magnet. Focusing on an open geometry, where the spin current is injected electrically via a nonequilibrium spin accumulation, we derive analytical expressions for the resultant superfluid-mediated motion of the domain wall. The analytical results are supported by micromagnetic simulations. The proposed phenomenon extends the regime of magnon-driven domain-wall motion to the case when the magnons are condensed and exhibit superfluidity. Furthermore, by controlling the pinning of the domain wall, we propose a realization of a reconfigurable spin transistor. The long-distance dissipationless character of spin superfluids can thus be exploited for manipulating soliton-based memory and logic devices.
description: 5 pages, 3 figures, supplementary
MPEC 2023-R194 : 2016 BS13
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Authentic Leadership and Employees’ Commitment to Organizational Change with Mediating Role of Trust: The Case of Selected Public Federal Organizations in Addis Ababa
Creators: name: Gebretsadik, Simret
Publisher: name: African Journal of Leadership and Development
Year: 2021

description: Prevalence of authentic leadership, trust and employees’ commitment are considered as vital elements for a healthy and successful sailing of the 21 century organizations. The purpose of this study was to find out the effect of prevalence of authentic leadership (PAL) on employees’ commitment to organizational change (ECOC) with a mediating role of employees’ trust in leadership (ETL). To that end, an explanatory research design with quantitative approach was used. Data were collected from 400 employees of four selected federal organizations. Data analysis was done using mean, logistic regression and MANOVA from the SPSS software version 21. Findings of the analysis revealed that authentic leadership has a statistically significant positive effect on employees’ commitment (R2=.038; b=.197; p=.003), whereas, its effect through the mediation of trust is trivial and statistically insignificant (R2=.030;b=.049;p=.153). Besides, the effect of PALon ETL was found to be negative and statistically significant (-.245; p=.014). Moreover, the MANOVA test results revealed that the studied organizations do not have statistically significant difference in the levels of their PAL (p=.273) and ECOC (p=.696). Nonetheless, there is statistically significant difference in the studied organizations’ level of ETL (p=.000). Based on the above findings and reference to relevant literature, the researcher concluded that, the nature of leadership in the studied organizations is dominated by transactional leadership style; that was why the relationship between authentic leadership and trust is found to be negative and statistically significant. Finally, it is recommended that public organizations should give special emphasis to development and practice of authentic leadership qualities which could make employees’ develop embedded trust and exert extra effort to ensure success of their organizations.
description: African Journal of Leadership and Development, Vol. 6 No. 2 (2021): Organizational Leadership and Perfromance
MPEC 2023-R195 : 2023 HX4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
title: A diachronic study of food labels with a particular focus on verbal and pictorial narratives that are relevant to health
Creators: name: Olsen, Bodil Mostad
Publisher: name: University of Reading
Year: 2022

description: This thesis is about the verbal and visual presentation of health messages on food labels dating from 1850 to 1970. Health messages may describe the contents of the package, highlight the quality of ingredients, and in�form or convince consumers about the health benefit of a particular food or nutrient. However, the verbal and visual presentation has changed over time, taking into account social changes, the discovery of the relation�ship between diet and health, and various label regulations. The study aims to demonstrate that language and imagery used on food labels to depict the food´s health advantages is repeatedly linked to critical incidents related to health, indicating that manufacturers at any time have understood the marketing potential of including health-related information on their products. The method used in this thesis can be summarised as a systematic review of a selection of food labels from three periods: 1850–1918, 1918–1945 and 1945–1970. It comprises developing a descriptive framework including a checklist of attributes to identify and describe the linguistic and graphic features of these labels. Four case studies are identified and analysed using this method in order to discuss how health messages are represented verbally and visually. The analysis is informed by the following: • the use of the word pure on food labels from the nineteenth and early twentieth centuries to communicate non-adulterated food, • how early nutrition science reflects the representation of vitamins in a selection of food labels from the 1920s, 1930s, and 1940s, • how post-war diets and health are reflected on labels for convenience food, and • labels for milk and milk-related products and how they have changed over time. The case studies identify a number of health messages and show that changes in these messages were driven by significant health concerns, medical discoveries, and various health trends. For example, the food industry met the experts’ (government medical advisors, and doctors and nutritionists) identification of dietary concerns by manufacturing new and ‘healthy’ products, and health messages promoted food quality by establishing a link to modern nutritional science or particular health considerations. Adoption of the research methods used in this thesis could prove helpful in a further analysis of the effectiveness of the presentation of linguistic and graphic elements on packaging in relation to current health trends. Aligning the results of this analysis with the role of corporate advertising guidance for designers would highlight the food industry’s approach to consumers’ needs and expectations in terms of promoting information about nutrients and healthy foods.
Lepton flavor violating quarkonium decays
Creators: name: Hazard, Derek E.
name: Petrov, Alexey A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We argue that lepton flavor violating (LFV) decays $M \to \ell_1 \overline \ell_2$ of quarkonium states $M$ with different quantum numbers could be used to put constraints on the Wilson coefficients of effective operators describing LFV interactions at low energy scales. We note that restricted kinematics of the two-body quarkonium decays allows us to select operators with particular quantum numbers, significantly reducing the reliance on the single operator dominance assumption that is prevalent in constraining parameters of the effective LFV Lagrangian. We shall also argue that studies of radiative lepton flavor violating $M \to γ\ell_1 \overline \ell_2$ decays could provide important complementary access to those effective operators.
description: 22 pages, 3 figures, 9 tables
Conceptual Rover Design for Future Turkish Lunar Mission.pdf
Creators: name: boybasi, beste
name: kosoglu, barbaros teoman
name: altuntas, nurdeniz
name: kosker, oznur
name: yaglıoglu, burak
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 400107
subject: Satellite, space vehicle and missile design and testing

description: Moon missions are growing in popularity, with numerous nations such as Russia, China, and the USA, and commercial enterprises aiming to explore the lunar surface. Türkiye is also taking a step to become one of the pioneers in the space race, with the "National Space Program", introduced in 2020 by the Turkish Space Agency (TUA). One of the main pillars of the National Space Program is the Moon Research Program where two missions are planned with targets of reaching the Lunar orbit and then the surface through hard landing within a few years (AYAP-1) and delivering a rover to the surface through soft landing (AYAP-2). In this manner, a group of AYAP-1 scholarship students of TUBITAK UZAY-Space Technologies Research Institute and Space Exploration Society (UKET) members has performed a conceptual design for a small Lunar rover considering AYAP-2 (soft landing mission). UKET is the main organizer of the international Anatolian Rover Challenge, which is the first and only international rover challenge in Türkiye and it aims to cultivate competent engineers for the space industry for TUA and TUBITAK UZAY. In this paper, the design factors of the rover are discussed, including the choice of the instruments, the rover's size and mobility, payload capacity, subsystems, the technical budgets needed for development and operations, and the conceptual design of the rover itself. The main goal in designing the rover is to carry out scientific research focused on the physical properties of the landing site, detect and analyze the concentrations of different minerals and elements, measure the growth of organisms under the conditions of the Moon, and investigate how the mining capacity of microorganisms is effected from the lunar conditions.
Detection of opinion spam based on anomalous rating deviation
Creators: name: Savage, David
name: Zhang, Xiuzhen
name: Yu, Xinghuo
name: Chou, Pauline
name: Wang, Qingmai
Publisher: name: arXiv
Year: 2016
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: The publication of fake reviews by parties with vested interests has become a severe problem for consumers who use online product reviews in their decision making. To counter this problem a number of methods for detecting these fake reviews, termed opinion spam, have been proposed. However, to date, many of these methods focus on analysis of review text, making them unsuitable for many review systems where accom-panying text is optional, or not possible. Moreover, these approaches are often computationally expensive, requiring extensive resources to handle text analysis over the scale of data typically involved. In this paper, we consider opinion spammers manipulation of average ratings for products, focusing on dif-ferences between spammer ratings and the majority opinion of honest reviewers. We propose a lightweight, effective method for detecting opinion spammers based on these differences. This method uses binomial regression to identify reviewers having an anomalous proportion of ratings that deviate from the majority opinion. Experiments on real-world and synthetic data show that our approach is able to successfully iden-tify opinion spammers. Comparison with the current state-of-the-art approach, also based only on ratings, shows that our method is able to achieve similar detection accuracy while removing the need for assump-tions regarding probabilities of spam and non-spam reviews and reducing the heavy computation required for learning.
The gendered visuality of terrorism : a bricolage approach
Creators: name: Niehuss, Antonia Carlotta
Publisher: name: The University of St Andrews
Year: 2023
Subjects: Gender
Terrorism
Visuality
Power of images
Islamic State
US Capitol storming

description: Images are special. They have an exceptional ability to make us believe what we see. They can make us feel something much more immediately and intensely than words can. They can be sent to audiences worldwide instantly without requiring translation. And yet, they are deeply ambiguous, being interpreted in manifold ways. All these properties make images powerful political forces. Terrorism is increasingly communicated about with images, as for example the propaganda pictures by the so-called Islamic State or the photographs of Trump supporters storming the US Capitol illustrate. Indeed, governments and media networks, but also the public and those deemed terrorists, all participate in acts of showing and seeing terrorism nowadays – in creating its visuality. Finally, discourses on terrorism are deeply gendered. They construct individuals, states and terrorist groups in deeply gendered terms. How these discourses are gendered is central to the politics of terrorism – shaping how people understand themselves and others and consequently which policies can be taken. However, feminist research on these discourses has mainly focused on language, often overlooking the powerful images forming part of them. But how can we approach these images, with their unique properties, methodologically? How is the visuality of terrorism gendered, and how does it create the conditions of possibility for the politics of terrorism? In this thesis, drawing on insights from the research on visual politics, I use a methodological bricolage to understand terrorism’s gendered visuality and how it links to politics. Specifically, I apply my bricolage to two very different cases of contemporary terrorism, the so-called Islamic State and the 2021 US Capitol storming. Doing so, I uncover the gendered identities and power relations forming a wider gendered Self and Other constructed in their visualities, and how these gendered visualities create the conditions of possibility for the politics of terrorism.
Search for new eco-friendly alternatives gas mixtures: Review and Future Perspectives
Creators: name: Fonseca de Souza, Sandro
name: Barroso Ferreira, Mapse
Publisher: name: Zenodo
Year: 2022
Subjects: Particle Physics, Gaseous detectors

description: Lecture notes developed for the Jorge André Swieca" School on Experimental Nuclear Physics of the Brazilian Physical Society will focus on the Gas Electron Multiplier (GEM) held in September 2022 in the city of São Paulo at USP. The main topic of this lecture was Search for new eco-friendly alternatives gas mixtures:Review and Future Perspectives.
description: website: http://www1.fisica.org.br/~evjasfne/xxii/index.php/en/
The space density of luminous dusty star-forming galaxies at $z>4$: SCUBA-2 and LABOCA imaging of ultrared galaxies from $Herschel$-ATLAS
Creators: name: Ivison, R. J.
name: Lewis, A. J. R.
name: Weiss, A.
name: Arumugam, V.
name: Simpson, J. M.
name: Holland, W. S.
name: Maddox, S.
name: Dunne, L.
name: Valiante, E.
name: van der Werf, P.
name: Omont, A.
name: Dannerbauer, H.
name: Smail, Ian
name: Bertoldi, F.
name: Bremer, M.
name: Bussmann, R. S.
name: Cai, Z. -Y.
name: Clements, D. L.
name: Cooray, A.
name: De Zotti, G.
name: Eales, S. A.
name: Fuller, C.
name: Gonzalez-Nuevo, J.
name: Ibar, E.
name: Negrello, M.
name: Oteo, I.
name: Pérez-Fournon, I.
name: Riechers, D.
name: Stevens, J. A.
name: Swinbank, A. M.
name: Wardlow, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Until recently, only a handful of dusty, star-forming galaxies (DSFGs) were known at $z>4$, most of them significantly amplified by gravitational lensing. Here, we have increased the number of such DSFGs substantially, selecting galaxies from the uniquely wide 250-, 350- and 500-$μ$m Herschel-ATLAS imaging survey on the basis of their extremely red far-infrared colors and faint 350- and 500-$μ$m flux densities - ergo they are expected to be largely unlensed, luminous, rare and very distant. The addition of ground-based continuum photometry at longer wavelengths from the JCMT and APEX allows us to identify the dust peak in their SEDs, better constraining their redshifts. We select the SED templates best able to determine photometric redshifts using a sample of 69 high-redshift, lensed DSFGs, then perform checks to assess the impact of the CMB on our technique, and to quantify the systematic uncertainty associated with our photometric redshifts, $σ=0.14\,(1+z)$, using a sample of 25 galaxies with spectroscopic redshifts, each consistent with our color selection. For Herschel-selected ultrared galaxies with typical colors of $S_{500}/S_{250}\sim 2.2$ and $S_{500}/S_{350}\sim 1.3$ and flux densities, $S_{500}\sim 50\,$mJy, we determine a median redshift, $\hat{z}_{\rm phot}=3.66$, an interquartile redshift range, 3.30$-$4.27, with a median rest-frame 8$-$1000-$μ$m luminosity, $\hat{L}_{\rm IR}$, of $1.3\times 10^{13}\,$L$_\odot$. A third lie at $z>4$, suggesting a space density, $ρ_{z>4}$, of $\approx 6 \times 10^{-7}\,$Mpc$^{-3}$. Our sample contains the most luminous known star-forming galaxies, and the most over-dense cluster of starbursting proto-ellipticals yet found.
description: 22 pages; in press at The Astrophysical Journal; full-resolution PDF version available at http://www.roe.ac.uk/~rji/ivison2016.pdf
Large Cross-Phase Modulations at the Few-Photon Level
Creators: name: Liu, Zi-Yu
name: Chen, Yi-Hsin
name: Chen, Yen-Chun
name: Lo, Hsiang-Yu
name: Tsai, Pin-Ju
name: Yu, Ite A.
name: Chen, Ying-Cheng
name: Chen, Yong-Fan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate an efficient cross-phase modulation (XPM) based on a closed-loop double-Λ system. The property of the double-Λ medium can be controlled by changing the phases of the applied optical fields. This phase-dependent XPM scheme can achieve large phase modulations at low-light intensities without requiring cavities or tightly focusing of laser beams. With this scheme, we observe a π-level phase shift with two pulses both consisting of 8 photons in cold rubidium atoms. Such novel scheme provides a simple route to generate strong interactions between photons and may have potential applications in all-optical quantum signal processing.
description: 5 pages, 4 figures, supplemental matrial: 7 pages, 6 figures. arXiv admin note: substantial text overlap with arXiv:1409.4153, arXiv:1302.1744
Sub-subleading soft gravitons and large diffeomorphisms
Creators: name: Campiglia, Miguel
name: Laddha, Alok
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present strong evidence that the sub-subleading soft theorem in semi-classical (tree level) gravity discovered by Cachazo and Strominger is equivalent to the conservation of asymptotic charges associated to a new class of vector fields not contained within the previous extensions of BMS algebra. Our analysis crucially relies on analyzing the hitherto established equivalences between soft theorems and Ward identities from a new perspective. In this process we naturally (re)discover a class of `magnetic' charges at null infinity that are associated to the dual of the Weyl tensor.
description: 41 pages
Velocity statistics inside coherent vortices generated by the inverse cascade of $2d$ turbulence
Creators: name: Kolokolov, I. V.
name: Lebedev, V. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 76F02, 76F05

description: We analyze velocity fluctuations inside coherent vortices generated as a result of the inverse cascade in the two-dimensional ($2d$) turbulence in a finite box. As we demonstrated in \cite{16KL}, the universal velocity profile, established in \cite{14LBFKL}, corresponds to the passive regime of flow fluctuations. The property enables one to calculate correlation functions of the velocity fluctuations in the universal region. We present results of the calculations that demonstrate a non-trivial scaling of the structure function. In addition the calculations reveal strong anisotropy of the structure function.
description: arXiv admin note: substantial text overlap with arXiv:1511.03113
Energetic constraints on electromagnetic signals from double black hole mergers
Creators: name: Dai, Lixin
name: McKinney, Jonathan C.
name: Miller, M. Coleman
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The possible Fermi detection of an electromagnetic counterpart to the double black hole merger GW150914 has inspired many theoretical models, some of which propose that the holes spiraled together inside a massive star. However, we show that the heat produced by the dynamical friction on such black hole orbits can exceed the stellar binding energy by a large factor, which means that this heat could destroy the star and thus make it difficult for enough gas to be near the holes at merger to produce detectable photons. These considerations must be taken into account when models are proposed for electromagnetic counterparts to the coalescence of two stellar-mass black holes. We find that only when the two black holes form very close to the center can the star avoid destruction. In that case, dynamical friction can make the black holes coalesce faster than they would in vacuum, which leads to a modification of the gravitational waveform that is potentially observable by advanced LIGO.
description: Submitted to MNRAS Letters, comments welcome
Ultra-high vacuum compatible induction-heated rod casting furnace
Creators: name: Bauer, Andreas
name: Neubauer, Andreas
name: Münzer, Wolfgang
name: Regnat, Alexander
name: Benka, Georg
name: Meven, Martin
name: Pedersen, Björn
name: Pfleiderer, Christian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the design of a radio-frequency induction-heated rod casting furnace that permits the preparation of polycrystalline ingots of intermetallic compounds under ultra-high vacuum compatible conditions. The central part of the system is a bespoke water-cooled Hukin crucible supporting a casting mold. Depending on the choice of mold, typical rods have a diameter between 6 mm and 10 mm and a length up to 90 mm, suitable for single-crystal growth by means of float-zoning. The setup is all-metal sealed and may be baked out. We find that the resulting ultra-high vacuum represents an important precondition for processing compounds with high vapor pressures under a high-purity argon atmosphere up to 3 bar. Using the rod casting furnace, we succeeded to prepare large high-quality single crystals of two half-Heusler compounds, namely the itinerant antiferromagnet CuMnSb and the half-metallic ferromagnet NiMnSb.
description: 5 pages, 4 figures
The Mediating Role of Job Satisfaction in the Relationship between Organizational Culture and Employees’ Commitment: The Case of Civil Service Organizations in Selected Cities of Ethiopia
Creators: name: Zeleke, Terefe
Publisher: name: African Journal of Leadership and Development
Year: 2021

description: The main objective of this study was to examine the mediating role of job satisfaction in the relationship between organizational culture and employees’ commitment. In order to achieve this objective, the study employed descriptive and explanatory research designs to describe the situation and examine the cause and effect relationship of the under cases under investigation. For collection of data, survey questionnaire was administered to 400 randomly selected employee respondents who are permanently working in the civil service organizations in the selected study areas. The data analysis has been executed using both descriptive and inferential statistics in which descriptive results were used to describe the major issues addressed, whereas inferential statistics were used to make inference for the nature of entire population of which the sample has been drawn. The study has found that the practice of organizational culture in the civil service organization is at moderate level relatively with more customer orientation. In regard to employees’ job satisfaction, it was found at moderate level. It was also noticed that the job satisfaction level of employees increases as the level of job grades raise up. In addition, the study found that employees have higher affective commitment which reveals more emotional attachment to the organization than continuance commitment and normative commitment. Furthermore, the result confirms that the employees’ job satisfaction partially carries the effect of organizational culture to employees’ commitment. Therefore, it is very important for civil service organizations to give due attentions to the improvement of their current organizational culture and enhancing the job satisfaction of employees to get more commitment from employees for successful realization of the organizational goals.
description: African Journal of Leadership and Development, Vol. 6 No. 2 (2021): Organizational Leadership and Perfromance