cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The role of individual differences in working memory in reading and listening comprehension in intermediate grade students
Creators: name: Molloy, Peter John
Publisher: name: University of British Columbia
Year: 2009

description: The present study investigated the functions of working memory as related to reading and listening comprehension in school-age students. Five working memory tasks were used, forward and backward digit span and 3 levels of each of modified digit span, word span and sentence span. These 11 tasks and a sentence verification task were used to obtain indices of individual working memory function. From these tasks, predictors of reading and listening comprehension were investigated. The working memory tasks were presented in reading and listening mode. The effect of the mode of presentation of the memory tasks (i.e. reading vs. listening mode of the tasks) was examined. The reading mode of the most difficult modified digit, word and sentence span task presentations yielded higher scores than the listening format did as would be expected. Grade related differences between 60 Grade 5 and 60 Grade 7 students were also investigated. Overall, working memory scores are higher for Grade 7 than Grade 5, and when the memory tasks were read than when listened to. No significant interactions were found between grade and working memory task format. The grade difference in WM scores between Grade 7 and Grade 5 are not different, depending on upon WM task format, that is, the task formats being reading vs. listening. Two subtests derived from the Wechsler Individual Achievement Test (W.I.A.T.) were used to assess literal and inferential reading and listening comprehension. The backward digit span, word span and sentence span tasks were found to be significant predictors of reading comprehension. This finding favours a general capacity hypothesis of working memory that linguistic or nonlinguistic working memory measures should predict reading comprehension. The complex sentence span measure was the only measure that predicted listening comprehension. This is consistent with the task specific hypothesis of working memory that linguistic working memory measures presumably tapping capacity and processing component would best predict listening comprehension. Statistical evidence was also found to support an hypothesis of reading comprehension being contingent on listening comprehension. The sentence span task was found to be the only task consistently measuring individual differences in working memory for reading and listening comprehension.
The Casimir effect for a sphere and a cylinder in front of plane and corrections to the proximity force theorem
Creators: name: Bordag, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using a path integral approach we rederive a recently found representation of the Casimir energy for a sphere and a cylinder in front of a plane and derive the first correction to the proximity force theorem.
description: 29 pages, references updated, note added and misprints corrected
Characterization of Methicillin-Resistant Staphylococcus aureus Isolated from Healthy Turkeys and Broilers Using DNA Microarrays
Creators: name: El-Adawy, Hosny
name: Ahmed, Marwa Fawzy El Metwaly
name: Hotzel, Helmut
name: Monecke, Stefan
name: Schulz, Jochen
name: Hartung, Joerg
name: Ehricht, Ralf
name: Neubauer, Heinrich
name: Hafez, Hafez M.
Publisher: name: Freie Universität Berlin
Year: 2016
Subjects: subject: Staphylococcus aureus
subject: MRSA
subject: turkey
subject: broiler
subject: microarray
subject: genotyping, antibiotics
subject: 600 Technik, Medizin, angewandte Wissenschaften::630 Landwirtschaft

description: Methicillin-resistant Staphylococcus aureus (MRSA) is a major human health problem and recently, domestic animals are described as carriers and possible reservoirs. Twenty seven S. aureus isolates from five turkey farms (n = 18) and two broiler farms (n = 9) were obtained by culturing of choana and skin swabs from apparently healthy birds, identified by Taqman-based real-time duplex nuc-mecA-PCR and characterized by spa typing as well as by a DNA microarray based assay which covered, amongst others, a considerable number of antibiotic resistance genes, species controls, and virulence markers. The antimicrobial susceptibility profiles were tested by agar diffusion assays and genotypically confirmed by the microarray. Five different spa types (3 in turkeys and 2 in broilers) were detected. The majority of MRSA isolates (24/27) belonged to clonal complex 398-MRSA-V. The most frequently occurring spa types were accordingly t011, t034, and t899. A single CC5-MRSA-III isolated from turkey and CC398-MRSA with an unidentified/truncated SCCmec element in turkey and broiler were additionally detected. The phenotypic antimicrobial resistance profiles of S. aureus isolated from both turkeys and broilers against 14 different antimicrobials showed that all isolates were resistant to ampicillin, cefoxitin, oxacillin, doxycycline, and tetracycline. Moreover, all S. aureus isolated from broilers were resistant to erythromycin and azithromycin. All isolates were susceptible to gentamicin, chloramphenicol, sulphonamides, and fusidic acid. The resistance rate against ciprofloxacin was 55.6% in broiler isolates and 42.1% in turkey isolates. All tetracycline resistant isolates possessed genes tetK/M. All erythromycin- resistant broiler isolates carried ermA. Only one broiler isolate (11.1%) carried genes ermA, ermB, and ermC, while 55.6% of turkey isolates possessed ermA and ermB genes. Neither PVL genes (lukF/S-PV), animal-associated leukocidin (lukM and luk-P83) nor the gene encoding the toxic shock syndrome toxin (tst1) were found in turkey and broiler isolates. In conclusion, the detection of MRSA in healthy turkeys and broilers with even additional antibiotic resistance markers is of major public health concern. The difference in antibiotic resistance and virulence markers between MRSA isolates from turkeys and broilers was addressed.
Statistical Mechanics of DNA Mutation using SUSY Quantum Mechanics
Creators: name: Haritha, K.
name: Chaitanya, K. V. S. Shiv
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we investigate DNA denaturation through Statistical Mechanics and show that exceptional polynomials lead to DNA mutation. We consider a DNA model with two chains connected by Morse potential representing the H bonds, and then we calculate the partition function for this model. The partition function is converted into a Schrödinger like an equation. We exploit the techniques of SUSY quantum mechanics to model DNA mutation. We also compute the thermal denaturation of DNA for each mutated state.
A model colloidal fluid with competing interactions: bulk and interfacial properties
Creators: name: Archer, A. J.
name: Pini, D.
name: Evans, R.
name: Reatto, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using a simple mean-field density functional theory theory (DFT), we investigate the structure and phase behaviour of a model colloidal fluid composed of particles interacting via a pair potential which has a hard core of diameter $σ$, is attractive Yukawa at intermediate separations and repulsive Yukawa at large separations. We analyse the form of the asymptotic decay of the bulk fluid correlation functions, comparing results from our DFT with those from the self consistent Ornstein-Zernike approximation (SCOZA). In both theories we find rich crossover behaviour, whereby the ultimate decay of correlation functions changes from monotonic to long-wavelength damped oscillatory decay on crossing certain lines in the phase diagram, or sometimes from oscillatory to oscillatory with a longer wavelength. For some choices of potential parameters we find, within the DFT, a $λ$-line at which the fluid becomes unstable with respect to periodic density fluctuations. SCOZA fails to yield solutions for state points near such a $λ$-line. The propensity to clustering of particles, which is reflected by the presence of a long wavelength $\gg σ$, slowly decaying oscillatory pair correlation function, and a structure factor that exhibits a very sharp maximum at small but non zero wavenumbers, is enhanced in states near the $λ$-line. We present density profiles for the planar liquid-gas interface and for fluids adsorbed at a planar hard wall. The presence of a nearby $λ$-transition gives rise to pronounced long-wavelength oscillations in the one-body densities at both types of interface.
description: 14 pages, 11 figures
HOW THE CYPRUS MINISTRY OF EDUCATION, CULTURE, SPORTS AND YOUTH AND THE CYPRUS OLYMPIC COMMITTEE ENGAGE PRIMARY AND SECONDARY SCHOOL STUDENTS INTO OLYMPISM
Creators: name: Κωνσταντίνου, Χριστοθέα
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2024
Subjects: subject: Ολυμπιακή παιδεία - Πρόγραμμα μαθημάτων - Κύπρος
subject: Ολυμπιακή παιδεία - Μελέτη και διδασκαλία (Πρωτοβάθμια) - Κύπρος
subject: Ολυμπιακή παιδεία - Μελέτη και διδασκαλία (Δευτεροβάθμια) - Κύπρος
subject: Ολυμπισμός
subject: Ολυμπιακό κίνημα
subject: Ολυμπιακές αξίες
subject: Olympic education - Curriculum - Cyprus
subject: Olympic education - Study and teaching (Elementary) - Cyprus
subject: Olympic education - Study and teaching (Secondary) - Cyprus
subject: Olympism
subject: Olympic movement
subject: Olympic values
subject: Olympic Education
subject: Olympic Committee
subject: Olympic Academy
subject: Olympic values
subject: Cyprus

description: Olympic Education is a valued-based educational process and a pedagogical tool, which has in its core the values of Olympism. “Olympic Education” as a term was introduced back in 70’s, while in 1972, during the Munich Olympic Games, the first Olympic Education program was implemented. Nowadays, the implementation of Olympic Education programs varies from one country to another, in terms of the scope, the way of implementation, the frequency and consistency. The purpose of the current study is to find out and present how the primary and secondary education students in Cyprus are being engaged into Olympism aspects through Olympic Educational programs, which are offered by the national Ministry of Education and the NOC. The study also extracts from bibliography the recommended implementation practices for Olympic Education programs, in terms of specific parameters and compares these practices to the way Olympic Education programs are implemented in Cyprus. For the data collection of the research, semi-structured interviews were used and the data collected where analyzed with the qualitative method. The results exulted from the interview as well as the bibliography research results are utilized for providing recommendation for the optimization of the existing Olympic Education programs.
Limitations of Bayesian Evidence Applied to Cosmology
Creators: name: Efstathiou, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There has been increasing interest by cosmologists in applying Bayesian techniques, such as Bayesian Evidence, for model selection. A typical example is in assessing whether observational data favour a cosmological constant over evolving dark energy. In this paper, the example of dark energy is used to illustrate limitations in the application of Bayesian Evidence associated with subjective judgements concerning the choice of model and priors. An analysis of recent cosmological data shows a statistically insignificant preference for a cosmological constant over simple dynamical models of dark energy. It is argued that for nested problems, as considered here, Bayesian parameter estimation can be more informative than computing Bayesian Evidence for poorly motivated physical models.
description: 8 pages 4 figures MNRAS accepted. Substantially revised and extended
Abstractive Opinion Tagging
Creators: name: Li, Qintong
name: Li, Piji
name: Li, Xinyi
name: Ren, Zhaochun
name: Chen, Zhumin
name: de Rijke, Maarten
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: In e-commerce, opinion tags refer to a ranked list of tags provided by the e-commerce platform that reflect characteristics of reviews of an item. To assist consumers to quickly grasp a large number of reviews about an item, opinion tags are increasingly being applied by e-commerce platforms. Current mechanisms for generating opinion tags rely on either manual labelling or heuristic methods, which is time-consuming and ineffective. In this paper, we propose the abstractive opinion tagging task, where systems have to automatically generate a ranked list of opinion tags that are based on, but need not occur in, a given set of user-generated reviews. The abstractive opinion tagging task comes with three main challenges: (1) the noisy nature of reviews; (2) the formal nature of opinion tags vs. the colloquial language usage in reviews; and (3) the need to distinguish between different items with very similar aspects. To address these challenges, we propose an abstractive opinion tagging framework, named AOT-Net, to generate a ranked list of opinion tags given a large number of reviews. First, a sentence-level salience estimation component estimates each review's salience score. Next, a review clustering and ranking component ranks reviews in two steps: first, reviews are grouped into clusters and ranked by cluster size; then, reviews within each cluster are ranked by their distance to the cluster center. Finally, given the ranked reviews, a rank-aware opinion tagging component incorporates an alignment feature and alignment loss to generate a ranked list of opinion tags. To facilitate the study of this task, we create and release a large-scale dataset, called eComTag, crawled from real-world e-commerce websites. Extensive experiments conducted on the eComTag dataset verify the effectiveness of the proposed AOT-Net in terms of various evaluation metrics.
description: Accepted by WSDM 2021
Flare stars in nearby Galactic open clusters based on {\it TESS} data
Creators: name: Maryeva, O.
name: Bicz, K.
name: Xia, C.
name: Baratella, M.
name: Čechvala, P.
name: Vida, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The study is devoted to search for flare stars among confirmed members of Galactic open clusters using high-cadence photometry from {\it TESS} mission. We analyzed 957 high-cadence light curves of members from 136 open clusters. As a result, 56 flare stars were found, among them 8 hot B-A type objects. Of all flares, 63\% were detected in a sample of cool stars ($T_{\rm eff}<5000$~K), and 29\% -- in stars of spectral type G, while 23\% in K-type stars and approximately 34\% of all detected flares are in M-type stars. Using the FLATW'RM (FLAre deTection With Ransac Method) flare finding algorithm, we estimated parameters of flares and rotation period of detected flare stars. The flare with the largest amplitude appears on the M3 type EQ\,Cha star. Statistical analysis did not reveal any direct correlation between ages, rotation periods and flaring activity.
description: 20 pages, 9 figures, article based on the project work at ERASMUS+ GATE 2020 Summer school organised by Masaryk university Brno, Czech Republic. Accepted for publication to Contrib. Astron. Obs. Skalnate Pleso
Infant and preschool attachment, continuity and relationship to caregiving sensitivity: findings from a new population-based Australian cohort
Creators: name: McIntosh, Jennifer
name: Opie, Jessica
name: Greenwood, CJ
name: Booth, Anna
name: Tan, E
name: Painter, Felicity
name: Messer, M
name: Macdonald, JA
name: Letcher, P
name: Olsson, CA
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 3202
subject: Clinical sciences
classificationCode: 5201
subject: Applied and developmental psychology
classificationCode: 5203
subject: Clinical and health psychology

description: Background: Here, we report new prevalence and temporal stability data for child attachment and parental caregiving behaviour, from infancy (1 year) to preschool (4 years). Methods: Attachment (SSP) and caregiving data (MBQS) were from observations of parents and their infants and preschoolers, who represent the third generation of participants within an Australian longitudinal cohort. Results: At 1 year (n = 314 dyads) and at 4 years (n = 368 dyads), proportions assessed secure were 59% and 71%, respectively. Proportions assessed avoidant were 15% and 11%; ambivalent 9% and 6%, and disorganised 17% and 12%, at 1 and 4 years. Continuity of attachment pattern was highest for the infant secure group. Of dyads initially classified disorganised in infancy, 36% remained so at the preschool assessment. Attachment and caregiving continuities across the infancy–preschool period were highest for the stable secure attachment group and lowest for the stable insecure attachment group. Loss of secure attachment to mother by age 4 years correlated with decreased maternal caregiving sensitivity, and acquisition of secure status by age 4 was associated with increased maternal sensitivity. We found no difference in caregiving sensitivity scores for mothers and fathers for female and male preschool children. Conclusions: The contemporary infant and preschool attachment proportions we report here closely mirror the patterns of those reported in prior decades, with an inclination towards secure base relationships. Our findings alert practitioners anew to the responsiveness of early attachment status to change in caregiving responsiveness and support ongoing investment in early identification of disorganised attachment.
Oxypoda (Thliboptera) acutior Assing 2012, nov.sp.
Creators: name: Assing, V.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Oxypoda
Oxypoda acutior

description: Oxypoda (Thliboptera) acutior nov.sp.
(Figs 8-9, Map 2)
Type material: Holotype: " Albania [7], Pogradec, 18 km NNW Pogradec, S Q. e Thanës, 1000 m, 41°03'23''N, 20°36'43''E, 24.V.2010, M. Schülke / Holotypus Oxypoda acutior sp.n. det. V. Assing 2011" (cAss). Paratypes: 2, 4, 1sex?: same data as holotype (cSch, cAss); 1: same data as holotype, but leg. Assing (cAss); 1: " Albania (Pogradec), 18 km NNW Pogradec, S Qafa e Thanës 1000 m, 41°03'23''N, 20°36'43''E (dry pasture on lime with oak shrubbery, under stones) 24.V.2010 D.W. Wrase [7]" (cSch); 1: " Albania (Kolonjë), 5 km SW Ersekë, Mt. Barmashi 1030 m, 40°17'43''N, 20°38'06''E (pasture and field edges, under stones), 28.V.2010, D.W. Wrase [15]" (cSch).
Description: Body length 4.5-5.3 mm. Coloration: blackish-brown to blackish, usually with the elytra and sometimes also the pronotum slightly paler; legs dark-reddish; antennae dark-brown to blackish-brown, with the basal three antennomeres dark-reddish. External characters as in O. attenuata; distinguished only by the male primary sexual characters:
: median lobe of aedeagus (Fig. 8) larger, approximately 0.83 mm long; ventral process apically much longer and more acute; apical internal structures larger, longer, and more strongly sclerotised; ventro-apical internal tube of different shape.
: spermatheca as in Fig. 9.
Etymology: The name (Latin, comparative of the adjective acutus) alludes to the apically more acute ventral process of the aedeagus, one of the characters distinguishing this species from the similar O. attenuata.
Comparative notes: Oxypoda acutior is reliably distinguished from most other East Mediterranean consubgeners only by the morphology of the aedeagus. For illustrations of the genitalia of these species see ASSING (2004, 2006a). The only similarly dark-coloured Thliboptera species in the West Mediterranean is O. luctifera from North Africa, which is distinctly smaller. The aedeagus of O. luctifera is figured by TRONQUET (1999). The aedeagus of the geographically close (Greece) and externally highly similar O. infissa has a ventral process with a longer, more slender (lateral view), and more acute apex, distinctly shorter and smaller apical internal sclerotised structures, and an apico-ventral tube of completely different shape (see figure 128 in ASSING 2006a).
Distribution and natural history: Oxypoda acutior is currently known only from two localities in southern Albania, where the type specimens were collected by turning stones on pastures at an altitude of approximately 1000 m.
description: Published as part of Assing, V., 2012, On the taxonomy and zoogeography of some Oxypoda species of the West Palaearctic region (Coleoptera: Staphylinidae: Aleocharinae), pp. 365-399 in Linzer biologische Beiträge 44 (1) on pages 374-375, DOI: 10.5281/zenodo.5327440
Residual resistivity due to wedge disclination dipoles in metals with rotational plasticity
Creators: name: Krasavin, S. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The residual resistivity $ρ$ in metals caused by wedge disclination dipoles is studied in the framework of the Drude formula. It is shown that $ρ\sim L^{-p}$ with $p=3$ for biaxial and $p=2$ for uniaxial dipoles ($L$ is a size of dipole arm)
description: 12 pages, 2 figures
Natural hyperbolicity in the layered hexagonal crystal structure
Creators: name: Ebrahimian, Ali
name: Asgari, Reza
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Discovering the physical requirements for meeting the indefinite permittivity in natural material as well as proposing a new natural hyperbolic media offer a possible route to significantly improve our knowledge and ability to confine and controlling light in optoelectronic devices. We demonstrate the hyperbolicity in a class of materials with hexagonal P6/mmm and P6$_{3}$/mmc layered crystal structures and its physical origin is thoroughly investigated. By utilizing density functional theory and solving the Bethe-Salpeter equation (BSE), we find that the layered crystal structure and symmetry imposed constraints in Li$_{3}$N gives rise to an exceedingly strong anisotropy in optical responses along in- and out-of-plane directions of the crystals making it a natural hyperbolic in a broad spectral range from the visible spectrum to the ultraviolet. More excitingly, the hyperbolicity relation to anisotropic interband absorption in addition to the impressive dependency of the conduction band to the lattice constant along the out-of-plane direction provide the hyperbolicity tunability in these hexagonal structures under strain, doping, and alloying. Our findings not only suggest a large family of real hexagonal compounds as a unique class of materials for realization of the highly tunable broad band hyperbolicity but also offers an approach to search for new hyperbolic
The role of governmental and public Palestinian Institutions in elevating the level of competition of Palestinian Athletes in International Sports Competitions
Creators: name: Jayousi, Nader
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2024
Subjects: Αθλητισμός και κράτος - Παλαιστίνη
Ολυμπιακοί αγώνες - Πολιτικές απόψεις - Ιστορία - Παλαιστίνη
Ολυμπιακοί αγώνες - Διοίκηση και οργάνωση - Παλαιστίνη
Sports and state - Palestine
Olympics - Political aspects - History - Palestine
Olympics - Management - Palestine

description: Everything in Palestine speaks politics, from road signs and checkpoints to a separation wall and travel permits. Sports is no different, and in the long struggle for Palestinian freedom against the occupation, it is becoming a battleground for public debate and a tool to promote political agenda using international sporting bodies. This dissertation works to understand “The role of governmental and public Palestinian sports institutions in elevating the level of competition of Palestinian athletes in international sports competitions” It analyses the recent work of the Palestinian Olympic Committee and other Palestinian Sporting organizations in elevating the level of athleticism in Palestine. In addition, the dissertation explores whether appropriate conditions exist in Palestine to use sport as a viable, non-violent, and effective mechanism of change by examining the internal and external barriers limiting its success. And finally, this research assesses the perspectives of Palestinian athletes, coaches, influencers, and stakeholders of Palestinian sport, on the future role of public Palestinian sporting organizations in making real results in international competitions. The study was based on the stories and experiences of individuals who have been involved in sports both in Palestine and internationally; including Palestinian athletes, coaches, international academics, and government officials. The findings show that despite its recency, lack of centralized management, and lack of prioritization in Palestinian political agendas, the role of government can certainly have positive consequences in raising awareness of the growing Palestinian sports movement. Furthermore, the government alone cannot change the outcomes of sporting competitions, but rather it can be one of the many factors Palestine needs to elevate the level of competition of athletes in international sports competitions. In addition, the study finds that policies must be built within the guidelines of a strategic national policy, one that accepts and adopts sports as a viable method of change within the Palestinian community and one that needs focus from a governmental point of view. And lastly, the thesis finds that academic work on the role of government in supporting athletes in Palestine is scarce, hence the study’s findings offer a significant original contribution to the emerging academic literature on Palestinian sport to help unveil the political challenges surrounding and affecting it daily.
Evolution of the quantized field coupled to a thermal bath: a phase space approach
Creators: name: Mattos, E. P.
name: Vidiella-Barranco, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present an alternative method for describing the evolution of a mode of the quantized electromagnetic field in contact with a finite temperature thermal bath. We use the expansion of the field density operator in terms of coherent states and the related Glauber-Sudarshan $P$-function in phase space. The method allows us to obtain analytical expressions of the system's time-evolved $P$-function without needing to solve the corresponding master equation.
Object-oriented modelling: from analysis to logical design
Creators: name: Jung, Darrell
Publisher: name: University of British Columbia
Year: 2009

description: Object-oriented concepts have recently been adapted for enterprise modelling. Because many of the existing object-oriented analysis and design methods were developed from'software engineering roots, they lack fundamental rules and principles for modeling organizational activities. To remedy this situation, Object-Oriented Enterprise Modelling (OOEM), based on an ontological foundation, was developed to provide the rules and principles for enterprise analysis modelling. This thesis continues the work in the development of OOEM by providing extensions to the analysis modelling rules to encompass design concepts. The design principles provide a bridge for the transition from an enterprise model to an initial design of a logical information system model. The work proposes three types of concepts: decomposition, delegation.and static objects, to provide a structured method for reasoning about design when one proceeds from an enterprise model.
Charged Current Single Pion Cross Section Measurement at MiniBooNE
Creators: name: Wascko, M. O.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present MiniBooNE's preliminary numu charged-current single pion (CC1pi) cross section measurement, calculated using the ratio to charge current quasi-elastic (CCQE) events. We find the inclusive CC1pi cross section to be below the predcition of the NUANCE and NEUGEN Monte Carlos.
description: 6 pages, 6 figures, proceedings from NuInt05
Metopus palaeformis Kahl 1927
Creators: name: Durán-Ramírez, Carlos Alberto
name: Dias, Roberto Júnio Pedroso
name: Estrada, Rosaura Mayén-
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Heterotrichea
Heterotrichida
Metopidae
Metopus
Metopus palaeformis

description: Metopus palaeformis Kahl, 1927
Distribution. VENEZUELA: South margin of the Henri Pittier National Park, Biological Station Rancho Grande (Foissner 2016).
description: Published as part of Durán-Ramírez, Carlos Alberto, Dias, Roberto Júnio Pedroso & Estrada, Rosaura Mayén-, 2020, Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region, pp. 1-36 in Zootaxa 4895 (1) on page 14, DOI: 10.11646/zootaxa.4895.1.1, http://zenodo.org/record/4321437
title: Η κατανομή Weibull ως μοντέλο ζημιοκατανομής στην αναλογιστική επιστήμη
title: The Weibull distribution as a model for loss distributions in actuarial science
titleType: AlternativeTitle
Creators: name: Ράπτης, Ιωάννης
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Weibull
subject: Αναλογισμός

description: Η κατανομή Weibull αποτέλεσε και εξακολουθεί να αποτελεί μια από τις κυριότερες κατανομές, αναφορικά με την επιστήμη της Στατιστικής και εφαρμοσμένης Στατιστικής σε παγκόσμια κλίμακα. Η πρώτη της επίσημη παρουσίαση στην παγκόσμια επιστημονική κοινότητα πραγματοποιήθηκε από τον Waloddi Weibull το 1951, παρόλα αυτά, οι απαρχές της μελέτης της φημολογούνται περί το 1920. Συγκεκριμένα για την Αναλογιστική Επιστήμη, η κατανομή Weibull έχει καταλυτικό ρόλο στην ανάπτυξή της, αφού χρησιμοποιείται ως Ζημιοκατανομή στον κλάδο των Γενικών Ασφαλίσεων, καθώς επίσης και σε περιοχές όπως η Ανάλυση Επιβίωσης και η Θεωρία Κινδύνου, με εφαρμογές στην ένταση θνησιμότητας (force of mortality) και στους χρόνους ζωής (lifetimes) συνεχών τυχαίων μεταβλητών. Η παρούσα εργασία θα εστιάσει στην κατανομή Weibull από την σκοπιά της Αναλογιστικής Επιστήμης, παρουσιάζοντας αναλυτικά τις βασικές ιδιότητές της, καθώς και θα γίνει μια απόπειρα να παρουσιαστούν ορισμένες εφαρμογές της μέσω αριθμητικών παραδειγμάτων, με την βοήθεια της προγραμματιστικής γλώσσας R.
Evolution of Nuclear Star Clusters
Creators: name: Merritt, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Two-body relaxation times of nuclear star clusters are short enough that gravitational encounters should substantially affect their structure in 10 Gyr or less. In nuclear star clusters without massive black holes, dynamical evolution is a competition between core collapse, which causes densities to increase, and heat input from the surrounding galaxy, which causes densities to decrease. The maximum extent of a nucleus that can resist expansion is derived numerically for a wide range of initial conditions; observed nuclei are shown to be compact enough to resist expansion, although there may have been an earlier generation of low-density nuclei that were dissolved. An evolutionary model for NGC 205 is presented which suggests that the nucleus of this galaxy has already undergone core collapse. Adding a massive black hole to a nucleus inhibits core collapse, and nuclear star clusters with black holes always expand, due primarily to heat input from the galaxy and secondarily to heating from stellar disruptions. The expansion rate is smaller for larger black holes due to the smaller temperature difference between galaxy and nucleus when the black hole is large. The rate of stellar tidal disruptions and its variation with time are computed for a variety of initial models. The disruption rate generally decreases with time due to the evolving nuclear density, particularly in the faintest galaxies, assuming that scaling relations derived for luminous galaxies can be extended to low luminosities.
description: 14 pages, 12 figures
Rogue wave formation and interactions in the defocusing nonlinear Schrödinger equation with external potentials
Creators: name: Wang, Li
name: Yan, Zhenya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The defocusing nonlinear Schrödinger (NLS) equation has no the modulational instability, and was not found to possess the rogue wave (RW) phenomenon up to now. In this paper, we firstly investigate some novel nonlinear wave structures in the defocusing NLS equation with real-valued time-dependent and time-independent potentials such that the stable new RWs and W-shaped solitons are found, respectively. Moreover, the interactions of two or three RWs are explored such that the RWs with higher amplitudes are generated in the defocusing NLS equation with real-valued time-dependent potentials. Finally, we study the defocusing NLS equation with complex PT -symmetric potentials such that some RWs and W-shaped solitons are also found. These novel results will be useful to design the related physical experiments to generate the RW phenomena and W-shaped solitons in the case of defocusing nonlinear interactions, and to apply them in the related fields of nonlinear or even linear sciences.
description: 7 pages, 9 figures
Prospects for Antineutrino Running at MiniBooNE
Creators: name: Wascko, M. O.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: MiniBooNE began running in antineutrino mode on 19 January, 2006. We describe the sensitivity of MiniBooNE to LSND-like nuebar oscillations and outline a program of antineutrino cross-section measurements necessary for the next generation of neutrino oscillation experiments. We describe three independent methods of constraining wrong-sign (neutrino) backgrounds in an antineutrino beam, and their application to the MiniBooNE antineutrino analyses.
description: 6 pages, 7 figures, proceedings from NuInt05
Neutrality of the color-flavor-locked phase in a Dyson-Schwinger approach
Creators: name: Nickel, Dominik
name: Alkofer, Reinhard
name: Wambach, Jochen
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The role of neutrality constraints for the phase structure of QCD at non-vanishing chemical potentials is studied within a self-consistent truncation scheme for the Dyson-Schwinger equation of the quark propagator in Landau gauge. We find the (approximate) color-flavor-locked phase to be energetically preferred at all potentially relevant densities and for physical values of the quark masses. We furthermore observe the impossibility to define this phase by residual global symmetries and discuss the role of chemical potentials.
description: 10 pages, 4 figures
Medicanes in an ocean-atmosphere coupled regional climate model
Creators: name: Akhtar, Naveed
name: Brauch, J.
name: Dobler, A.
name: Béranger, K.
name: Ahrens, B.
Publisher: name: Freie Universität Berlin
Year: 2014
Subjects: subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie

description: So-called medicanes (Mediterranean hurricanes) are meso-scale, marine, and warm-core Mediterranean cyclones that exhibit some similarities to tropical cyclones. The strong cyclonic winds associated with medicanes threaten the highly populated coastal areas around the Mediterranean basin. To reduce the risk of casualties and overall negative impacts, it is important to improve the understanding of medicanes with the use of numerical models. In this study, we employ an atmospheric limited-area model (COSMO-CLM) coupled with a one-dimensional ocean model (1-D NEMO-MED12) to simulate medicanes. The aim of this study is to assess the robustness of the coupled model in simulating these extreme events. For this purpose, 11 historical medicane events are simulated using the atmosphere-only model, COSMO-CLM, and coupled model, with different setups (horizontal atmospheric grid spacings of 0.44, 0.22, and 0.08°; with/without spectral nudging, and an ocean grid spacing of 1/12°). The results show that at high resolution, the coupled model is able to not only simulate most of medicane events but also improve the track length, core temperature, and wind speed of simulated medicanes compared to the atmosphere- only simulations. The results suggest that the coupled model is more proficient for systemic and detailed studies of historical medicane events, and that this model can be an effective tool for future projections
WASP-117 b: an eccentric hot-Saturn as a future complex chemistry laboratory
Creators: name: Anisman, Lara O.
name: Edwards, Billy
name: Changeat, Quentin
name: Venot, Olivia
name: Al-Refaie, Ahmed F.
name: Tsiaras, Angelos
name: Tinetti, Giovanna
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present spectral analysis of the transiting Saturn-mass planet WASP-117b, observed with the G141 grism of Wide Field Camera 3 (WFC3) on the Hubble Space Telescope. We reduce and fit the extracted spectrum from the raw transmission data using the open-source software Iraclis before performing a fully Bayesian retrieval using the publicly available analysis suite TauREx 3.0. We detect water vapour alongside a layer of fully opaque cloud, retrieving a terminator temperature of 833 K. In order to quantify the statistical significance of this detection, we employ the Atmospheric Detectability Index (ADI), deriving a value of 2.30, which provides positive but not strong evidence against the flatline model. Due to the eccentric orbit of WASP-117b, it is likely that chemical and mixing timescales oscillate throughout orbit due to the changing temperature, possibly allowing warmer chemistry to remain visible as the planet begins transit, despite the proximity of its point of ingress to apastron. We present simulated spectra of the planet as would be observed by the future space missions Ariel and JWST and show that, despite not being able to probe such chemistry with current HST data, these observatories should make it possible in the not too distant future.
description: Accepted for publication in AJ
Microresonator and Laser Parameters Definition via Self-Injection Locking
Creators: name: Shitikov, Artem E.
name: Benderov, Oleg V.
name: Kondratiev, Nikita M.
name: Lobanov, Valery E.
name: Rodin, Alexander V.
name: Bilenko, Igor A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Self-injection locking to a high-quality-factor microresonator is a key component of various up-to-date photonic applications, including compact narrow-linewidth lasers and microcomb sources. For optimal construction of such devices it is necessary to know the parameters of the locking mode, which is a challenging task. We developed and verified experimentally an original technique based on the fundamentals of the self-injection locking effect, which allows determining the key parameters of the mode of the microresonator (quality factor, vertical index) as well as laser diode parameters. We demonstrated that this method can be used in the spectral ranges where conventional methods are not applicable, for example, in the mid-IR. We stabilized a 2.64 $μ$m laser diode by a high-Q whispering gallery mode microresonator made of crystalline silicon. Using the elaborated technique, the quality factor of the microresonator was determined to be $5\cdot10^8$.
title: Απολογισμός της πανδημίας Covid-19 στην θνησιμότητα του πληθυσμού της Ελλάδας
title: Assessing the impact of the covid-19 pandemic on the mortality of the Greek population
titleType: AlternativeTitle
Creators: name: Γριβοκωστόπουλος, Πέτρος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Πίνακες επιβίωσης κατά αιτία
subject: COVID-19
subject: Προσδόκιμο ζωής

description: Σκοπός αυτής της εργασίας είναι η ανάδειξη της επιρροής της πανδημίας του ιού Covid-19 στο προσδόκιμο ζωής μέσω της κατασκευής συνεπτυγμένων πινάκων επιβίωσης κατά αιτία θανάτου για τον πληθυσμό της Ελλάδας ανά φύλο για τη περίοδο 2020-2021. Αρχικά, αναλύονται τα χαρακτηριστικά του ιού και τα γεγονότα που έλαβαν μέρος στη χώρα κατά τη διάρκεια της πανδημίας. Αναφορά έγινε στα επίπεδα της θνησιμότητας στην Ευρώπη και στην Ελλάδα και στις επιπτώσεις που είχε η πανδημία στο τομέα των ασφαλίσεων. Στη συνέχεια, δίνεται η έννοια της θνησιμότητας, και αναλύεται ο τρόπος συλλογής των στοιχείων θανάτων και ο τρόπος σωστής κατηγοριοποίησης αυτών κατά αιτία θανάτου. Μετά, αναφέρονται δείκτες που είναι χρήσιμοι για τον υπολογισμό των επιπέδων θνησιμότητας και οι κατηγορίες των πινάκων επιβίωσης κατά αιτία, με τις κυριότερες να είναι εκείνες του πολύ-παραγοντικού, όπου μελετάται η πιθανότητα ενός ατόμου να αποβιώσει από την εκάστοτε αιτία όταν όλες οι υπόλοιπες συνεπιδρούν, και του μονο-παραγοντικού πίνακα, όπου μελετάται η πιθανότητα ενός ατόμου να επιβιώσει εάν δεν επιδρούσε καθόλου κάποια συγκεκριμένη αιτία θανάτου. Έπειτα, περιγράφεται η μεθοδολογία κατασκευής ενός συνεπτυγμένου πίνακα επιβίωσης για όλες τις αιτίες και στη συνέχεια, ενός πίνακα επιβίωσης κατά αιτία. Τέλος, κατασκευάζεται ένας συνεπτυγμένος πίνακας επιβίωσης ανά φύλο ξεχωριστά για τη διετία 2020-21 και στη συνέχεια κατασκευάζεται ένας συνεπτυγμένος πίνακας επιβίωσης κατά αιτία με τη μέθοδο του μονο-παραγοντικού πίνακα για την ίδια περίοδο, για θανάτους που οφείλονται στον Covid-19, στις καρδιακές παθήσεις και στις παθήσεις του αναπνευστικού συστήματος. Κατασκευάζεται επίσης και ο ένας συνεπτυγμένος πίνακας για το έτος του 2019, που σε αυτό δεν υπήρχε στα δεδομένα ο ιός ως αιτία θανάτου, και εν τέλει αναφέρονται τα κυριότερα συμπεράσματα που προέκυψαν από τις συγκρίσεις των πινάκων αυτών.
{Tc(NO)(Cp)(PPh3)}+ – a novel technetium(I) core
Creators: name: Ackermann, Janine
name: Hagenbach, A.
name: Abram, U.
Publisher: name: Freie Universität Berlin
Year: 2016
Subjects: subject: 500 Naturwissenschaften und Mathematik::540 Chemie

description: Reactions between [TcI(NO)X2(PPh3)2(CH3CN)] complexes (X = Cl, Br) and KCp form the pseudotetrahedral organotechnetium compounds [TcI(NO)(Cp)(PPh3)X]. The halide ligands can readily be replaced by other halides or organometallic ligands giving access to a novel family of technetium(I) compounds with the robust {Tc(NO)(Cp)(PPh3)}+ core.
Data-driven rogue waves and parameter discovery in the defocusing NLS equation with a potential using the PINN deep learning
Creators: name: Wang, Li
name: Yan, Zhenya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Machine Learning (cs.LG)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The physics-informed neural networks (PINNs) can be used to deep learn the nonlinear partial differential equations and other types of physical models. In this paper, we use the multi-layer PINN deep learning method to study the data-driven rogue wave solutions of the defocusing nonlinear Schrödinger (NLS) equation with the time-dependent potential by considering several initial conditions such as the rogue wave, Jacobi elliptic cosine function, two-Gaussian function, or three-hyperbolic-secant function, and periodic boundary conditions. Moreover, the multi-layer PINN algorithm can also be used to learn the parameter in the defocusing NLS equation with the time-dependent potential under the sense of the rogue wave solution. These results will be useful to further discuss the rogue wave solutions of the defocusing NLS equation with a potential in the study of deep learning neural networks.
description: 12 pages, 5 figures
Use of Bayesian Network characteristics to link project management maturity and risk of project overcost
Creators: name: Sanchez, Felipe
name: Monticolo, Davy
name: Bonjour, Eric
name: Micaëlli, Jean-Pierre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The project management field has the imperative to increase the project probability of success. Experts have developed several project management maturity models to assets and improve the project outcome. However, the current literature lacks of models allowing correlating the measured maturity and the expected probability of success. This paper uses the characteristics of Bayesian networks to formalize experts' knowledge and to extract knowledge from a project overcost database. It develops a method to estimate the impact of project management maturity on the risk of project overcost. A general framework is presented. An industrial case is used to illustrate the application of the method.
Exploration of serum- and cell culture-derived exosomes from dogs
Creators: name: Aguilera-Rojas, Matias Ignacio
name: Badewien-Rentzsch, Brit
name: Plendl, Johanna
name: Kohn, Barbara
name: Einspanier, Ralf
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: Exosomes
subject: Serum
subject: Cell culture medium
subject: Dog
subject: Transmission electron microscopy
subject: Nanoparticle tracking analysis
subject: Biomarkers
subject: 500 Naturwissenschaften und Mathematik::590 Tiere (Zoologie)::599 Mammalia (Säugetiere)
subject: 600 Technik, Medizin, angewandte Wissenschaften::630 Landwirtschaft::630 Landwirtschaft und verwandte Bereiche
subject: 600 Technik, Medizin, angewandte Wissenschaften::630 Landwirtschaft::632 Schäden, Krankheiten, Schädlinge an Pflanzen

description: Exosomes are defined as extracellular membrane vesicles, 30–150 nm in diameter, derived from all types of cells. They originate via endocytosis and then they are released through exocytosis to the extracellular space, being found in various biological fluids as well as in cell culture medium. In the last few years, exosomes have gained considerable scientific interest due to their potential use as biomarkers, especially in the field of cancer research. This report describes a method to isolate, quantify and identify serum- and cell culture-derived exosomes from dog samples, using small volumes (100 μL and 1 mL, respectively).
Spectroscopic monitoring of the candidate tidal disruption event in F01004-2237
Creators: name: Cannizzaro, Giacomo
name: Jonker, Peter G.
name: Mata-Sánchez, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present results of spectroscopic monitoring observations of the Ultra-Luminous Infra Red Galaxy F01004-2237. This galaxy was observed to undergo changes in its optical spectrum, detected by comparing a spectrum from 2015 with one from 2000. These changes were coincident with photometric brightening. The main changes detected in the optical spectrum are enhanced He II $λ$4686 emission and the appearance of He I $λ$3898,$λ$5876 emission lines. The favoured interpretation of these changes was that of a tidal disruption event (TDE) happening in 2010. However, subsequent work suggested that these changes are caused by another hitherto unknown reason related to variations in the accretion rate in the active galactic nucleus (AGN). Our optical spectroscopic monitoring observations show that the evolution of the He lines is in line with the evolution seen in TDEs and opposite of what observed from reverberation mapping studies of AGNs, renewing the discussion on the interpretation of the flare as a TDE.
description: 9 pages, 3 figures, 2 tables. Accepted for publication on ApJ on January 22, 2021