cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ADAPTING TO MUSICAL TRENDS: A COMPARATIVE ANALYSIS OF LOVE FM, COOL FM, AND WAZOBIA FM IN THE EVOLVING LANDSCAPE OF MUSIC PREFERENCES
Creators: name: Enyindah, Stella Chinyere
Publisher: name: Top journals
Year: 2024
Subjects: Musical Trends
Comparative Analysis
Love FM
Cool FM
Wazobia FM

description: This study examines adapting to musical trends: A comparative analysis of Love FM, Cool FM, and Wazobia FM in the evolving landscape of music preferences. The study was guided by two research questions and two hypotheses. The design used in the study was a focus group discussion, and the researcher were the instrument for data collection. The sampling was done in two groups, with one focusing on selected staff members from the three different radio stations, while the other focused on residents of the Port Harcourt metropolis, out of which a sample size of 15 was chosen with the purposive sampling technique. The three radio stations that were evaluated had audience engineering programs through music, such as the Drivetime Show on Cool 96.5 FM, the One Nigeria Radio show on Love97.7 FM, and the Lunch hour drive on Wazobia 94.1 FM. Overall, the study found that radio listeners were generally satisfied with their listening experience and that their loyalty was influenced by a variety of factors, such as the station's programing or technical quality. The study concluded that music radio listeners are generally satisfied with their radio listening experience and that their loyalty is strongly influenced by the amount of time they spend listening to a particular station. Based on the findings of the study, it was recommended that radio stations should focus on creating engaging and high-quality programing to build a loyal audience. In addition, radio stations should consider how to create emotional connections with their listeners.
Altmetrics
Creators: name: Landesman, Betty
Publisher: name: Maryland Shared Open Access Repository
Year: 2015
Subjects: Altmetrics
Scholarly Publishing
Scholarly Communication

description: Altmetrics is an emerging concept that addresses measuring the impact of scholarly communication in a world that is rapidly moving past traditional means of publication to tweets and blogs.  What are the new measures of scholarly (or personal) impact factors?  Learn about directions and developments in these new metrics.
description: PowerPoint deck from presentation at the University of Baltimore's College of Arts and Sciences Scholarship Day, March 24, 2015.
The acceptance of solar water pump technology among rural farmers of northern Pakistan: A structural equation model
Creators: name: Deyi Zhou
name: , Abdullah
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: The situation of electricity is deteriorating in Pakistan and load shedding prevails in all parts of the country which not only affect the general life but also leads to lower agricultural productivity in rural areas. The purpose of this study is to explore the factors that influence the acceptance of solar water pump (SWP) technology. For this purpose, a SWP technology acceptance model was proposed based on technology acceptance model (TAM) and unified theory of acceptance and use of technology. Six variables were used to assess the model which includes; perceived usefulness, perceived ease of use, facilitating conditions (FC), cost tolerance (CT), awareness and attitude towards SWP usage. Data were collected from 450 rural farmers employing structured questionnaire through face to face interviews. The questions were orally translated to farmers due to lack of education. The method of structural equation modeling was used to test and confirm the hypothesized model. Results indicated that out of eight hypotheses, seven were supported while one was not supported. Moreover, the results show that better predictors of SWP technology usage were gender, age, education awareness, CT, FC, ease of use and usefulness. The study is valuable as it applied TAM to study the factors influencing the acceptance of SWP technology for the first time in the context of Pakistan.
On cyclic branched coverings of prime knots
Creators: name: Boileau, M.
name: Paoluzzi, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: Primary 57M25; Secondary 57M12; 57M50

description: We prove that a prime knot K is not determined by its p-fold cyclic branched cover for at most two odd primes p. Moreover, we show that for a given odd prime p, the p-fold cyclic branched cover of a prime knot K is the p-fold cyclic branched cover of at most one more knot K' non equivalent to K. To prove the main theorem, a result concerning the symmetries of knots is also obtained. This latter result can be interpreted as a characterisation of the trivial knot.
description: 28 pages, 2 figures
A holistic framework to assess the sustainability of irrigated agricultural systems
Creators: name: Antunes, Paula
name: Santos, Rui
name: Cosme, Inês
name: Osann, Anna
name: Calera, Alfonso
name: Ketelaere, Dirk De
name: Spiteri, Anna
name: Mejuto, Miguel Fernández
name: Andreu, Joaquín
name: Momblanch, Andrea
name: Nino, Pasquale
name: Vanino, Silvia
name: Florian, Violeta
name: Chitea, Mihai
name: Çetinkaya, Cem Polat
name: Meiry Sayuri Sakamoto
name: Kampel, Milton
name: Sanchez, Luis Alberto Palacio
name: Abdin, Alaa El-Din
name: Ravikumar Alanasiddaiah
name: Sashikumar Nagarajan
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology

description: Irrigated agriculture is a key activity for the long-term survival of human-environmental systems and the assessment of agricultural sustainability has been gaining increasing relevance. In spite of several proposals developed, there is not a holistic approach that can be generally applied to assess sustainability of irrigated agricultural areas. In this paper we present a framework and associated indicators for the assessment of sustainability of irrigated agricultural systems in different contexts and locations. The framework covers four main sustainability dimensions: environmental integrity, economic resilience and profitability, social wellbeing and good governance. This approach was tested in 10 agricultural areas in eight different countries that represent a wide variety of situations in terms of agricultural development, environmental conditions, socio-economic settings and political contexts, but that share the fact that water use is a critical aspect for agricultural development. The obtained results illustrate the usefulness of the proposed framework to obtain a holistic picture of sustainability in irrigated agriculture areas, even in situations of poor data availability. It is also an excellent starting point for the construction of roadmaps towards more sustainable agricultural systems.
Internal Modes of Solitons and Near-Integrable Highly-Dispersive Nonlinear Systems
Creators: name: Charkina, Oksana V.
name: Bogdan, Mikhail M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The transition from integrable to non-integrable highly-dispersive nonlinear models is investigated. The sine-Gordon and $ϕ^4$-equations with the additional fourth-order spatial and spatio-temporal derivatives, describing the higher dispersion, and with the terms originated from nonlinear interactions are studied. The exact static and moving topological kinks and soliton-complex solutions are obtained for a special choice of the equation parameters in the dispersive systems. The problem of spectra of linear excitations of the static kinks is solved completely for the case of the regularized equations with the spatio-temporal derivatives. The frequencies of the internal modes of the kink oscillations are found explicitly for the regularized sine-Gordon and $ϕ^4$-equations. The appearance of the first internal soliton mode is believed to be a criterion of the transition between integrable and non-integrable equations and it is considered as the sufficient condition for the non-trivial (inelastic) interactions of solitons in the systems.
description: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Cameroon Private Print Journalists Perception of the National Communication Council
Creators: name: Cedric Kamgna, Emmanuel Yenshu , Henri Muluh, Constance Jawaid
Publisher: name: Zenodo
Year: 2024

description: ObjectivesThe existence of a council to regulate and check media excesses has been recognised as a necessity in other partsof the world. In Cameroon, there is presently a debate over the role and powers of the National CommunicationCouncil, also known as the NCC. This study aimed at reaching a comprehensive assessment of Cameroon printjournalists’ perception of the National Communication Council. That is, to understand their continuous criticismsof sanctions issued by the council.MethodologyThe research problem was addressed by conducting qualitative interviews with journalists from 12 newspapersfound in 3 cities: Buea (South West Region) and Douala (Littoral Region) and Yaounde. A phenomenologicalresearch approach coupled with Colaizzi 1978 phenomenological qualitative data analysis was used gather andinterpret data.FindingsInterviews revealed that Cameroon private print journalists consider the National Communication Council as anorgan which is not autonomous with members being appointed by the Head of State and therefore not completelyindependent of the Executive as they should be. Consequently, it is recommended that media professionals shouldbe associated in the formation of a new organ and that the law creating this organ should be enacted by theparliament.LimitationsThe recruitment journalists from journalists from the private press was justifiable to conduct this study. However,the sample selection which was limited to member of the private newspapers and therefore excluding membersfrom other types of media like tv, radio and online can limit the generalization of this to other member of themedia landscape
False discovery rate analysis of brain diffusion direction maps
Creators: name: Schwartzman, Armin
name: Dougherty, Robert F.
name: Taylor, Jonathan E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Diffusion tensor imaging (DTI) is a novel modality of magnetic resonance imaging that allows noninvasive mapping of the brain's white matter. A particular map derived from DTI measurements is a map of water principal diffusion directions, which are proxies for neural fiber directions. We consider a study in which diffusion direction maps were acquired for two groups of subjects. The objective of the analysis is to find regions of the brain in which the corresponding diffusion directions differ between the groups. This is attained by first computing a test statistic for the difference in direction at every brain location using a Watson model for directional data. Interesting locations are subsequently selected with control of the false discovery rate. More accurate modeling of the null distribution is obtained using an empirical null density based on the empirical distribution of the test statistics across the brain. Further, substantial improvements in power are achieved by local spatial averaging of the test statistic map. Although the focus is on one particular study and imaging technology, the proposed inference methods can be applied to other large scale simultaneous hypothesis testing problems with a continuous underlying spatial structure.
description: Published in at http://dx.doi.org/10.1214/07-AOAS133 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Probing the gluon tomography in photoproduction of di-pions
Creators: name: Hagiwara, Yoshikazu
name: Zhang, Cheng
name: Zhou, Jian
name: Zhou, Ya-jin
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A sizable $\cos 4ϕ$ azimuthal asymmetry in exclusive di-pion production near $ρ^0$ resonance peak in ultraperipheral heavy ion collisions recently has been reported by STAR collaboration. We show that both elliptic gluon Wigner distribution and final state soft photon radiation can give rise to this azimuthal asymmetry. The fact that the QED effect alone severely underestimates the observed asymmetry might signal the existence of the nontrivial correlation in quantum phase distribution of gluons.
description: 7 pages, 3 figures,published version in PRD
A Deep-Learning Approach For Direct Whole-Heart Mesh Reconstruction
Creators: name: Kong, Fanwei
name: Wilson, Nathan
name: Shadden, Shawn C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Automated construction of surface geometries of cardiac structures from volumetric medical images is important for a number of clinical applications. While deep-learning-based approaches have demonstrated promising reconstruction precision, these approaches have mostly focused on voxel-wise segmentation followed by surface reconstruction and post-processing techniques. However, such approaches suffer from a number of limitations including disconnected regions or incorrect surface topology due to erroneous segmentation and stair-case artifacts due to limited segmentation resolution. We propose a novel deep-learning-based approach that directly predicts whole heart surface meshes from volumetric CT and MR image data. Our approach leverages a graph convolutional neural network to predict deformation on mesh vertices from a pre-defined mesh template to reconstruct multiple anatomical structures in a 3D image volume. Our method demonstrated promising performance of generating whole heart reconstructions with as good or better accuracy than prior deep-learning-based methods on both CT and MR data. Furthermore, by deforming a template mesh, our method can generate whole heart geometries with better anatomical consistency and produce high-resolution geometries from lower resolution input image data. Our method was also able to produce temporally consistent surface mesh predictions for heart motion from CT or MR cine sequences, and therefore can potentially be applied for efficiently constructing 4D whole heart dynamics. Our code and pre-trained networks are available at https://github.com/fkong7/MeshDeformNet
Additional file 1 of Intensive care-related loss of quality of life and autonomy at 6 months post-discharge: Does COVID-19 really make things worse?
Creators: name: Thiolliere, Fabrice
name: Falandry, Claire
name: Allaouchiche, Bernard
name: Geoffray, Victor
name: Bitker, Laurent
name: Reignier, Jean
name: Abraham, Paul
name: Malaquin, Stephanie
name: Balança, Baptiste
name: Boyer, Hélène
name: Seguin, Philippe
name: Guichon, Céline
name: Simon, Marie
name: Friggeri, Arnaud
name: Vacheron, Charles-Hervé
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Science Policy
subject: Mental Health

description: Additional file 1: Table S1. AZUREA Study group: Inclusion center. Table S2. Characteristics of the patients not included in the study (Medical patients only). Table S3. Comparison of quality of life and autonomy on day 180 between COVID-19 and control groups restricted to the patients over 70 years old.
MHV Lagrangian for N=4 Super Yang-Mills
Creators: name: Feng, Haidong
name: Huang, Yu-tin
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Here we formulate two field redefinitions for N=4 Super Yang-Mills in light cone superspace that generates only MHV vertices in the new Lagrangian. After careful consideration of the S-matrix equivalence theorem, we see that only the canonical transformation gives the MHV Lagrangian that would correspond to the CSW expansion. Being in superspace, it is easier to analyse the equivalence theorem at loop level. We calculate the on shell amplitude for 4pt $(\barΛ\bar{\rm A}Λ{\rm A})$ MHV in the new lagrangian and show that it reproduces the previously known form. We also briefly discuss the relationship with the off-shell continuation prescription of CSW.
description: 17 pages 4 figures, 2 sections and several references added typo corrected
The acceptance of solar water pump technology among rural farmers of northern Pakistan: A structural equation model
Creators: name: Deyi Zhou
name: , Abdullah
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: The situation of electricity is deteriorating in Pakistan and load shedding prevails in all parts of the country which not only affect the general life but also leads to lower agricultural productivity in rural areas. The purpose of this study is to explore the factors that influence the acceptance of solar water pump (SWP) technology. For this purpose, a SWP technology acceptance model was proposed based on technology acceptance model (TAM) and unified theory of acceptance and use of technology. Six variables were used to assess the model which includes; perceived usefulness, perceived ease of use, facilitating conditions (FC), cost tolerance (CT), awareness and attitude towards SWP usage. Data were collected from 450 rural farmers employing structured questionnaire through face to face interviews. The questions were orally translated to farmers due to lack of education. The method of structural equation modeling was used to test and confirm the hypothesized model. Results indicated that out of eight hypotheses, seven were supported while one was not supported. Moreover, the results show that better predictors of SWP technology usage were gender, age, education awareness, CT, FC, ease of use and usefulness. The study is valuable as it applied TAM to study the factors influencing the acceptance of SWP technology for the first time in the context of Pakistan.
АНАЛИЗ ВЫБРОСОВ В АТМОСФЕРУ ПРИ ЛОГИСТИКЕ СИНТЕТИЧЕСКОГО ТОПЛИВА, ПРОИЗВОДИМОГО ПО ТЕХНОЛОГИИ ФИШЕРА-ТРОПША
Creators: name: Кудратбеков, Сардорбек
Publisher: name: Zenodo
Year: 2024

description: В статье приведены процессы хранения, переработки и транспортировки нефтепродуктов, таких как дизельное топливо, керосин и нафта, на промышленном объекте Uzbekistan GTL, а также показаны расчеты выбросов углеводородов в атмосферу при их наливе и хранении. Представлены данные о размере резервуаров для хранения, условиях температурного режима, концентрациях паров и коэффициентах, необходимых для расчетов выбросов.
Student-teachers’ conceptualisations of environment and human-nature relationships
Creators: name: Robertson, Alistair S
Publisher: name: University of British Columbia
Year: 2009

description: This study presents arguments for a constructivist perspective and qualitative methodologies for environmental education research. Its purpose was to explore student teachers' pre-instructional perspectives on the environment and environmental education, as well as on the relationship between humans and the natural world. Interviews were conducted with students in a South African teacher education program with mandatory environmental education sessions. Three data sets consisting of one-on-one interviews were collected. The first set comprised single interviews with ten students in 1992 and the second set involved multiple interviews with nine students and single interviews with three other students in 1993. The third data set comprised single interviews conducted by an independent researcher to elicit students' experiences of the data collection process. Students' conceptualisations of the environment, including associated beliefs on environmental education, are described within five categories: social, political, biophysical, integrated systems, and part of one's self. Thirteen conceptualisations of human-nature relationships are described, beginning with one portraying the shared origin of humans and nature, then four portraying human-nature connections. The remaining eight are organised on the basis of value which students attributed to the natural world: four conceptualisations relating to intrinsic value, one to inherent value, and three to instrumental value. Students' experiences of the environmental education sessions are also described, drawing attention to themes. Two conclusions are drawn from the analyses. First, students' pre-instructional beliefs exhibit important elements of conceptions of environment and environmental issues described in the literature. Similarly, their conceptualisations of human-nature relationships traverse a range of eco-philosophical perspectives and include elements of most of the categories developed in this literature. These conclusions are used to argue for the place of eco-philosophical literature within environmental teacher education and for a pedagogical approach which encourages students to explicate and critique their personal beliefs.
Potential Output and Fiscal Rules in a Monetary Union under
Asymmetric Information
Creators: name: Marattin, Luigi
name: Meraglia, Simone
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: SECS-P/01 Economia politica

description: We analyze fiscal rules within a Monetary Union in the presence of (i) asymmetric information about
member states’ potential output and, therefore, output gap and (ii) bail-out among member states. In
our framework, bail-out lowers the scope for signalling (discrimination) by member states (lenders). In
the presence of asymmetric information, bail-out and national governments’ shortsightedness make the
first-best fiscal rule non-implementable as member states are tempted to run excessively high deficits.
The Monetary Union designs a mechanism such that member states with high output gap (i.e., in a
recession) run higher budget deficits by making an ex-post transfer to the Union. We find that the
first-best deficit is contingent on the cycle – i.e., on the member state’s output gap – and, all else equal,
can be implemented provided the member states’ ability to repay its own debt upon the realization of
a bad shock is sufficiently high. A downward distortion in the deficit run by a member state during
an expansion is otherwise introduced. Finally, the Monetary Union cannot discriminate among types of
borrowers when national governments are excessively shortsighted.
Detection of radio frequency magnetic fields using nonlinear magneto-optical rotation
Creators: name: Ledbetter, M. P.
name: Acosta, V. M.
name: Rochester, S. M.
name: Budker, D.
name: Pustelny, S.
name: Yashchuk, V. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We describe a room-temperature alkali-metal atomic magnetometer for detection of small, high frequency magnetic fields. The magnetometer operates by detecting optical rotation due to the precession of an aligned ground state in the presence of a small oscillating magnetic field. The resonance frequency of the magnetometer can be adjusted to any desired value by tuning the bias magnetic field. We demonstrate a sensitivity of $100\thinspace{\rm pG/\sqrt{Hz}\thinspace(RMS)}$ in a 3.5 cm diameter, paraffin coated cell. Based on detection at the photon shot-noise limit, we project a sensitivity of $20\thinspace{\rm pG/\sqrt{Hz}\thinspace(RMS)}$.
description: 6 pages, 6 figures
Systemic flexibility and human capital development: the relationship between non-standard employment and workplace training
Creators: name: Giovanni, Guidetti
name: Giulio, Pedrini
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: SECS-P/01 Economia politica

description: The aim of this paper is to explore the relationship between non-standard contracts (part-time,
fixed-term) and workplace training by discussing the implications of two different theoretical
frameworks grounding on human capital theory and strategic management, respectively. To achieve
this purpose we develop alternative hypothesis on the association between the presence of nonstandard
workers and four different outcome variables related to workplace training and job-related
practices. By using data on Italian firms we get different results according to the type of nonstandard
contract and training. Part-time and temporary contracts carry out distinct functions with
respect to off-the job training as far as labour flexibility is concerned. On the other hand, although
non-standard work seems to be unrelated to on-the-job training decisions, this is not the case when
the overall number of job-related practices is taken into account. Overall, our evidence can reflect
the decision to substitute off-the-job training with job-related practices in presence of part-time
workers. Conversely, the recourse to temporary employment can be associated with the need to
enhance systemic flexibility throughout the organization.
Additional file 7 of Proteomic landscape subtype and clinical prognosis of patients with the cognitive impairment by Japanese encephalitis infection
Creators: name: Yin, Rong
name: Yang, Linpeng
name: Hao, Ying
name: Yang, Zhiqi
name: Lu, Tao
name: Jin, Wanjun
name: Dan, Meiling
name: Peng, Liang
name: Zhang, Yingjie
name: Wei, Yaxuan
name: Li, Rong
name: Ma, Huiping
name: Shi, Yuanyuan
name: Fan, Pengcheng
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Mental Health
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 7: Table S1. The demographics and clinical features of the patients.
SUSY-induced FCNC top-quark processes at the Large Hadron Collider
Creators: name: Cao, J. J.
name: Eilam, G.
name: Frank, M.
name: Hikasa, K.
name: Liu, G. L.
name: Turan, I.
name: Yang, J. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We systematically calculate various flavor-changing neutral-current top-quark processes induced by supersymmetry at the Large Hadron Collider, which include five decay modes and six production channels. To reveal the characteristics of these processes, we first compare the dependence of the rates for these channels on the relevant supersymmetric parameters, then we scan the whole parameter space to find their maximal rates, including all the direct and indirect current experimental constraints on the scharm-stop flavor mixings. We find that, under all these constraints, only a few channels, through cg->t at parton-level and t-> ch, may be observable at the Large Hadron Collider.
description: Version in PRD (refs updated)
Numerical Bianchi I solutions in semi-classical gravitation
Creators: name: Vitenti, Sandro P.
name: Müller, Daniel
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is believed that soon after the Planck era, spacetime should have a semi-classical nature. In this context we consider quantum fields propagating in a classical gravitational field and study the backreaction of these fields, using the expected value of the energy-momentum tensor as source of the gravitational field. According to this theory, the escape from General Relativity theory is unavoidable. Two geometric counter-term are needed to regularize the divergences which come from the expected value. There is a parameter associated to each counter-term and in this work we found numerical solutions of this theory to particular initial conditions, for general Bianchi Type I spaces. We show that even though there are spurious solutions some of them can be considered physical. These physical solutions include de Sitter and Minkowski that are obtained asymptotically.
description: Accepted for publication in PRD. More references included, a few modifications in the text
Exploring convolutional neural networks with transfer learning for diagnosing Lyme disease from skin lesion images
Creators: name: Hossain, Sk Imran
name: de Herve, Jocelyn de Goër
name: Hassan, Md Shahriar
name: Martineau, Delphine
name: Petrosyan, Evelina
name: Corbain, Violaine
name: Beytout, Jean
name: Lebert, Isabelle
name: Baux, Elisabeth
name: Cazorla, Céline
name: Eldin, Carole
name: Hansmann, Yves
name: Patrat-Delon, Solene
name: Prazuck, Thierry
name: Raffetin, Alice
name: Tattevin, Pierre
name: Vourc'H, Gwenaël
name: Lesens, Olivier
name: Nguifo, Engelbert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Lyme disease which is one of the most common infectious vector-borne diseases manifests itself in most cases with erythema migrans (EM) skin lesions. Recent studies show that convolutional neural networks (CNNs) perform well to identify skin lesions from images. Lightweight CNN based pre-scanner applications for resource-constrained mobile devices can help users with early diagnosis of Lyme disease and prevent the transition to a severe late form thanks to appropriate antibiotic therapy. Also, resource-intensive CNN based robust computer applications can assist non-expert practitioners with an accurate diagnosis. The main objective of this study is to extensively analyze the effectiveness of CNNs for diagnosing Lyme disease from images and to find out the best CNN architectures considering resource constraints. First, we created an EM dataset with the help of expert dermatologists from Clermont-Ferrand University Hospital Center of France. Second, we benchmarked this dataset for twenty-three CNN architectures customized from VGG, ResNet, DenseNet, MobileNet, Xception, NASNet, and EfficientNet architectures in terms of predictive performance, computational complexity, and statistical significance. Third, to improve the performance of the CNNs, we used custom transfer learning from ImageNet pre-trained models as well as pre-trained the CNNs with the skin lesion dataset HAM10000. Fourth, for model explainability, we utilized Gradient-weighted Class Activation Mapping to visualize the regions of input that are significant to the CNNs for making predictions. Fifth, we provided guidelines for model selection based on predictive performance and computational complexity.
Replica Symmetry Breaking Condition Exposed by Random Matrix Calculation of Landscape Complexity
Creators: name: Fyodorov, Yan V
name: Williams, Ian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We start with a rather detailed, general discussion of recent results of the replica approach to statistical mechanics of a single classical particle placed in a random $N (\gg 1)$-dimensional Gaussian landscape and confined by a spherically symmetric potential suitably growing at infinity. Then we employ random matrix methods to calculate the density of stationary points, as well as minima, of the associated energy surface. This is used to show that for a generic smooth, concave confining potentials the condition of the zero-temperature replica symmetry breaking coincides with one signalling that {\it both} mean total number of stationary points in the energy landscape, {\it and} the mean number of minima are exponential in $N$. For such systems the (annealed) complexity of minima vanishes cubically when approaching the critical confinement, whereas the cumulative annealed complexity vanishes quadratically. Different behaviour reported in our earlier short communication [Y.V. Fyodorov et al., {\it JETP Lett.} {\bf 85}, 261, (2007)] was due to non-analyticity of the hard-wall confinement potential. Finally, for the simplest case of parabolic confinement we investigate how the complexity depends on the index of stationary points. In particular, we show that in the vicinity of critical confinement the saddle-points with a positive annealed complexity must be close to minima, as they must have a vanishing {\it fraction} of negative eigenvalues in the Hessian.
description: 42 pages; new results are added on complexity of stationary points with a given index. Introduction is considerably modified. A few misprints are corrected
COMPARATIVE ANALYSIS OF EMOTIONS IN ENGLISH AND UZBEK TV SERIES
Creators: name: Klebleeva, Rezeda
Publisher: name: Zenodo
Year: 2024

description: This article explores the lexico-semantic field of positive and negative emotions within video-verbal discourse, focusing on a comparative analysis of English and Uzbek TV series. Through a detailed examination of lexical and semantic features, the study reveals how different cultures express emotions in multimedia contexts. By analyzing a corpus of TV series, the article highlights both universal and culturally specific ways of expressing emotions in English and Uzbek, reflecting individualistic versus collectivist societal values. The findings contribute to the understanding of how emotional language functions in media and opens new pathways for future cross-cultural studies of emotion.
Scaling law theories of isolated and of interacting particles:
Creators: name: Λαζαρίδης, Φίλιππος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Διάχυση
Αντιδράσεις
Φράκταλ
Diffusion
Reactions
Fractal

description: Η διπλωματική εργασία αποτελείται από δύο μέρη. Στο πρώτο μέρος υπολογίζουμε τη φρακταλική διάσταση συγκεκριμένων διατάξεων από μαγνητικές χάντρες χρησιμοποιώντας τη μέθοδο sandbox και συγκρίνουμε τα αποτελέσματα μας με τα αντίστοιχα που πάρθηκαν με τη μέθοδο box counting. Στο δεύτερο μέρος χρησιμοποιούμε προσομοιώσεις Monte Carlo για να εξετάσουμε την εξέλιξη των Α+Α → 0 και Α+Β→ 0 αντιδράσεων που ελέγχονται από τη διάχυση, σε 2 διαστάσεις (2D). Μελετάμε όλα τα βασικά χαρακτηριστικά αυτών των αντιδράσεων (περιοχή Zeldovich, διαχωρισμός κτλ.). Εισάγουμε τον παράγοντα αποδοτικότητας αντίδρασης γ και πραγματοποιούμε προσομοιώσεις για διαφορετικές τιμές του γ. Σχεδιάζουμε το διάγραμμα 1/ρ-1/ρ0 ως προς το χρόνο, όπου ρ η πυκνότητα των σωματιδίων, για διάφορες τιμές του γ, σε λογαριθμικούς άξονες, καθώς η δυναμική του συστήματος ακολουθεί εξίσωση νόμου δύναμης. Τα αποτελέσματα μας δείχνουν ότι για πολύ μικρές τιμές του γ τα διαγράμματα προσεγγίζουν πολύ καλά την ευθεία γραμμή με κλίση ίση με τη μονάδα, το σύστημα δηλαδή παύει να ελέγχεται από τη διάχυση και ο κυρίαρχος μηχανισμός είναι οι αντιδράσεις. Στην Α+Β→ 0 περίπτωση, τα αποτελέσματα μας δείχνουν ότι, οι γραμμές για διαφορετικές τιμές του γ σε μικρούς χρόνους παρουσιάζουν μεγάλη διασπορά της πυκνότητας, ανάλογα με το γ (μικρότερα γ παρουσιάζουν μεγαλύτερες κλίσεις σε μικρούς χρόνους). Για μεγάλους, όμως, χρόνους όλες οι γράμμες συγκλίνουν σε μία γραμμή.
description: This master thesis consists of two parts. On the first part we calculate the fractal dimension of some magnetic bead assemlies using the sandbox method and compare our results with the ones taken from the box counting method. On the second part Monte Carlo simulations are employed to study the rate laws of Α+Α → 0 and Α+Β → 0 diffusion limited reactions in two dimensions (2D). We study all the basic aspects of these reactions (Zeldovich regime, self-segregation etc.). We introduce the reaction efficiency factor γ and perform simulations of the above reactions for different values of γ. We plot 1/ρ-1/ρ0 vs time, where ρ is the density of the particles, for different values of γ, on double logarithmic scale because the dynamics of our systems follow a power law. Our results show that for very low values of γ the plots are almost a straight line with slope equal to unity, which means that our systems are reaction limited rather than diffusion limited. In the Α+Β → 0 case, our results show that, the lines for different values of γ, show crescent dispersion of density for short times, proportional to γ (smaller γ lead to bigger slopes for short times). Although, for longer times all lines converge to a single line.
The optimal scope of trade secrets law
Creators: name: Franzoni, Luigi Alberto
name: Kumar Kaushik, Arun
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: SECS-P/03 Scienza delle finanze

description: The paper investigates the optimal scope of trade secrets law. In the model, one innovative firm invests resources first to produce knowledge, and then to protect it from unwanted disclosure. A rival firm invests to ferret out this knowledge. Trade secrets law affects this "secrecy contest" by reducing the probability of unwanted disclosure given the efforts of the parties. We show how optimal trade secrets policy depends on structural market features and cost parameters. In the final section, we consider the limit case in which the innovation lies on the face of the product, and derive the optimal scope of legal provisions preventing copycat imitation of products (unfair competition, passing off).
The optimization of transformation efficiency in bacterium Chlamydia muridarum
Creators: name: Hafiz, Ikram
Publisher: name: No Publisher Supplied
Year: 2021

description: Chlamydia trachomatis is an obligate intracellular microbe that is responsible for trachoma and chlamydia in much of the developing world, but is difficult to manipulate due to its biphasic developmental cycle. The current protocol for transforming Chlamydia trachomatis is a very time consuming process, yielding limited numbers of successful transformants only after multiple passages of infection which can take up to 48 hours per passage, while also requiring a highly time consuming purification process for elementary bodies. Chlamydia trachomatis’ genetically conserved and faster growing cousin, Chlamydia muridarum (MoPn) was used as a model organism to test the influence of elementary body (EB) purity and concentration of plasmid on transformation efficiency. Ultimately, the experimentation was inconclusive; higher amounts of plasmid in the initial transformation did not yield a higher number of transformants nor yield them in earlier generations when compared to the control groups. Furthermore, the purity of infectious elementary bodies (EBs) were not essential for transformational competence; both ultra-purified EBs that were isolated via a density gradient and partially purified Chlamydia muridarum displayed successful transformants. Further experimentation would be needed with higher sample sizes to ensure statistical significance, and trials on Chlamydia trachomatis itself would have to be performed to ensure consistency across both species. Finally, trimethoprim, banzal-N-acylhydrazones (BAH), and other antibiotics should continue to be screened as alternative selective agents due to their differences in mechanisms of action.
Orthology assignment of 5 novel Sparidae proteomes and their phylogenetic position among teleosts
Creators: name: Natsidis, Paschalis
name: Pavlidis, Pavlos
name: Tsigenopoulos, Costas S
name: Manousaki, Tereza
Publisher: name: F1000 Research Limited
Year: 2019

description: The Sparidae are a family of teleosts constituted of fish with high commercial value, such as seabreams and porgies. The phylogenetic relationships among Sparidae species, as well as between Sparidae and other teleost families has been studied only with the use of single or few markers, with controversial results. Here, we integrated 5 recently established Sparidae gene sets with other publicly available well-annotated teleost proteomes, comprising a comprehensive dataset of whole-genome information for 31 species. This dataset was then used to infer orthologous genes using two different algorithms and conduct a phylogenomic analysis to determine the position of Sparidae within the teleost phylogeny.
From cardinal spline wavelet bases to highly coherent dictionaries
Creators: name: Andrle, Miroslav
name: Rebollo-Neira, Laura
Publisher: name: arXiv
Year: 2008
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: Wavelet families arise by scaling and translations of a prototype function, called the {\em {mother wavelet}}. The construction of wavelet bases for cardinal spline spaces is generally carried out within the multi-resolution analysis scheme. Thus, the usual way of increasing the dimension of the multi-resolution subspaces is by augmenting the scaling factor. We show here that, when working on a compact interval, the identical effect can be achieved without changing the wavelet scale but reducing the translation parameter. By such a procedure we generate a redundant frame, called a {\em{dictionary}}, spanning the same spaces as a wavelet basis but with wavelets of broader support. We characterise the correlation of the dictionary elements by measuring their `coherence' and produce examples illustrating the relevance of highly coherent dictionaries to problems of sparse signal representation.
The Institutional Fan-Made Paratext: the Case of the Van Der Memes
Creators: name: Brembilla, Paola
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: L-ART/06 Cinema, fotografia e televisione

description: This paper discusses the case of the Van Der Memes, internet memes based on close-ups of actor James Van Der Beek emoting feelings which, born as user-generated content (UGC), end up working as marketing tools for a rebranding campaign of the actor.
Framing the case study into the complexity of contemporary mediascape, a digital environment where corporate branding strategies progress alongside remix culture, the analysis will unfold along two main directions: on the one hand, we will see how the same content undertakes constant reworks and repurposes, as the duration and circulation of the media objects involved gets inevitably altered. On the other, we shall see how the case of the Van Der Memes calls into question the conflict between bottom/up and top/down productions, as it exemplifies a profitable relation between the notoriously unruly world of UGC and the  institutional environment of television industry.
Straight-to-Series in Broadcast Television: Causes, Issues and Consequences
Creators: name: Brembilla, Paola
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: L-ART/06 Cinema, fotografia e televisione

description: In the last few years, Netflix has set itself as a true player in U.S. television industry, fostering new competitive dynamics that have contributed to redefine television's production and distribution models. This paper aims to discuss one of the effects of this competition: the rethinking of the pilot process in favour of the straight-to-series commitment in broadcast television.
The analysis will unfold along three main directions:
1. Causes: we will argue that Netflix, through its high financial commitments, has launched a speculative bubble that has shaken up the traditional structure of competitive forces, pushing competitors to outbid its offers to hit-producers.
2. Issues: we will see whether the straight-to-series model could prove economically viable for broadcast television.
3. Consequences: we will ultimately analyse the consequences on narrative forms of network series, focusing in particular on writing processes and modes of storytelling.
Triplet loss based embeddings for forensic speaker identification in Spanish
Creators: name: Maqueda, Emmanuel
name: Alvarez-Jimenez, Javier
name: Mena, Carlos
name: Meza, Ivan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Sound (cs.SD)
subject: Artificial Intelligence (cs.AI)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: With the advent of digital technology, it is more common that committed crimes or legal disputes involve some form of speech recording where the identity of a speaker is questioned [1]. In face of this situation, the field of forensic speaker identification has been looking to shed light on the problem by quantifying how much a speech recording belongs to a particular person in relation to a population. In this work, we explore the use of speech embeddings obtained by training a CNN using the triplet loss. In particular, we focus on the Spanish language which has not been extensively studies. We propose extracting the embeddings from speech spectrograms samples, then explore several configurations of such spectrograms, and finally, quantify the embeddings quality. We also show some limitations of our data setting which is predominantly composed by male speakers. At the end, we propose two approaches to calculate the Likelihood Radio given out speech embeddings and we show that triplet loss is a good alternative to create speech embeddings for forensic speaker identification.
description: Long Paper: Neural Computing and Applications, Special Issue on LatinX in AI Research (2021). 11 pages, 5 figures
The stochastic flow rule: A multi-scale model for granular plasticity
Creators: name: Kamrin, Ken
name: Rycroft, Chris H.
name: Bazant, Martin Z.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In spite of many attempts to model dense granular flow, there is still no general theory capable of describing different types of flows, such as gravity-driven drainage in silos and wall-driven shear flows in Couette cells. Here, we summarize our recent proposal of the Stochastic Flow Rule (SFR), which is able to describe these cases in good agreement with experiments, and we focus on testing the theory in more detail against brute-force simulations with the discrete-element method (DEM). The SFR is a general rate-independent constitutive law for plastic flow, based on diffusing spots of fluidization. In the case of quasi-2D granular materials, we assume limit-state stresses from Mohr-Coulomb plasticity and postulate that spots undergo biased random walks along slip-lines, driven by local stress imbalances. We compare analytical predictions of the SFR against DEM simulations for silos and Couette cells, carrying out several parametric studies in the latter case, and find good agreement.