cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Current-driven skyrmion Depinning in Magnetic Granular Films
Creators: name: Salimath, A.
name: Abbout, A.
name: Brataas, A.
name: Manchon, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider current-driven motion of magnetic skyrmions in granular magnetic films. The study uses micromagnetic modeling and phenomenological analysis based on the Thiele formalism. Remarkably, disorder enhances the effective skyrmion Hall effect that depends on the magnitude of the driving force (current density and non-adiabaticity parameter). The origin is sliding motion of the skyrmion along the grain boundaries, followed by pinning and depinning at the grain junctions. A side-jump can occur during this depinning process. In addition, the critical current that triggers the skyrmion motion depends on the relative size of the crystallites with respect to the skyrmion size. Finally, when the skyrmion trajectory is confined along an edge by the non-adiabatic Magnus force, the critical current density can be significantly reduced. Our results imply that narrow nanowires have higher skyrmion mobilities.
description: 8 pages, 7 figures
D1.1 – Final setting of MAGIC CROPS entries
Creators: name: Monti, A.
Publisher: name: Zenodo
Year: 2019
Subjects: Marginal lands
Industrial crops
Cultivation
Agronomic practices

description: The MAGIC-CROPS database will provide in a systematic way data on industrial crops such as: description of the crop, areas where it could be cultivated, agronomic practices, suitability marginal lands (facing natural constraints), harvesting and storage practices, biomass quality, products and markets. The final setting of the MAGIC-CROPS entries will provide the format and the rules for compiling the database in order to make the enclosed information easily usable in the MAGIC DSS.
Buprestis rustica Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Buprestis
Buprestis rustica

description: Buprestis rustica [spec. nov.]
B. elytris striatis, thorace punctato.
Fn. svec. 555. Buprestis viridi-aenea immaculata.
Habitat in Europa.
* * * Elytris integris.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 409, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Mass inflation in (1+1)-dimensional Dilaton Gravity
Creators: name: Chan, J. S. F.
name: Mann, R. B.
Publisher: name: arXiv
Year: 1994
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the phenomenon of mass inflation in two-dimensional dilaton theories of gravity. We consider two distinct black hole spacetimes and construct the mass-inflation solution for each. Our analysis is extended to include multi-horizon spacetimes. We find that the mass function diverges in a manner quantitatively similar to its four-dimensional counterpart.
description: 15 pages, 4 figures (appended as postscript files) (uses epsf.tex)
Project VeSElkA: Search for vertical stratification of element abundances in HD157087
Creators: name: Khalack, Viktor
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The new spectropolarimetric spectra of HD157087 obtained recently with ESPaDOnS at CFHT are analysed to verify the nature of this object. The fundamental stellar parameters $T_{\rm eff}$ = 8882 K, $\log{g}$=3.57 have been obtained for HD157087 from the analysis of nine Balmer line profiles in two available spectra. Comparison of the results of our abundance analysis with the previously published data shows a variability of average abundance with time for some chemical species, while the abundance of other elements remains almost the same. The abundance analysis also reveals evidence of a significant abundance increase towards the deeper atmospheric layers for C, S, Ca, Sc, V, Cr, Mn, Co, Ni and Zr. Together with the found enhanced abundance of Ca and Sc this fact contradicts the classification of HD157087 as a marginal Am star. Analysis of the available measurements of radial velocity results in detection of long periodic and short periodic variations. The long periodic variation supports the idea that HD157087 is an astrometric binary system with a period higher than 6 years. The presence of short periodic variation of $V_{\rm r}$, as well as the detection of temporal variation of average abundance suggest that HD157087 may be a triple system, where a short periodic binary rotates around a third star. In this case, the short periodic binary may consist of slowly rotating Am and A (or Ap with weak magnetic field) stars that have similar effective temperature and surface gravity, but different abundance peculiarities.
description: 12 pages, 5 figures, 8 tables, accepted for publication in MNRAS
Cloning, expression, and localization analysis of the sucrose transporter gene JcSUT4 in the biofuel plant Jatropha curcas
Creators: name: Ziwei Yang
name: Yingbo Liu
name: Hongjun Han
name: Chenxi Ren
name: Siwen Liu
name: Jianmei Long
name: Changcao Peng
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Sucrose transporters (SUTs) play an important role in regulating fruit growth and development in planta. The fruit of Jatropha curcas, an important tropical tree used as biofuel material, ripens rapidly after flowering. Here, a SUT gene JcSUT4 from J. curcas was cloned and analyzed. JcSUT4, encoding a protein of 500 amino acid residues, was a Type III SUT homolog by a phylogenetic analysis. A transient expression assay in protoplasts showed that JcSUT4 was mainly localized to the plasma membrane. Complementation of yeast sucrose uptake-deficient mutant strains revealed that JcSUT4 was capable of transporting sucrose. JcSUT4 was highly expressed in mature source leaves, as well as in fruits at 30 days after full bloom (DAFB), which was in accordance with the stages of fruit swelling and ripening. This work shows that JcSUT4 may participate in the fruit growth and development of J. curcas, particularly be involved in sucrose storage in fruit. Taken together, our results provide new insights into the molecular mechanisms underpinning of SUTs in Jatropha.
Local harmonic approaches with approximate cranking operators
Creators: name: Nakatsukasa, takashi
name: Walet, Niels R.
name: Dang, Giu Do
Publisher: name: arXiv
Year: 1999
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Methods of large amplitude collective motion in the adiabatic limit are examined with a special emphasis on conservation laws. We show that the restriction to point transformations, which is a usual assumption of the adiabatic time-dependent mean-field theory, needs to be lifted. In order to facilitate the application of large amplitude collective motion techniques, we examine the possibility of representing the RPA normal-mode coordinates by linear combinations of a limited number of one-body operators. We study the pairing-plus-quadrupole model of Baranger and Kumar as an example, and find that such representations exist in terms of operators that are state-dependent in a characteristic manner.
description: 29 pages, 5 figures
Spontaneous and Stimulated Radiative emission of Modulated Free-Electron Quantum wavepackets - Semiclassical Analysis
Creators: name: Pan, Yiming
name: Gover, Avraham
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Here we present a semiclassical analysis of spontaneous and stimulated radiative emission from unmodulated and optically-modulated electron quantum wavepackets. We show that the radiative emission/absorption and corresponding deceleration/acceleration of the wavepackets depend on the controllable 'history-dependent' wavepacket size. The characteristics of the radiative interaction when a wavepacket of size (duration) is short relative to the radiation wavelength, are close to the predictions of the classical point-particle modeling. On the other hand, in the long-sized wavepacket limit, the interaction is quantum-mechanical, and it diminishes exponentially at high frequency. We exemplify these effects through the scheme of Smith-Purcell radiation, and demonstrate that if the wavepacket is optically-modulated and periodically-bunched, it exhibits finite radiative emission at harmonics of the modulation frequency beyond the limit of high-frequency cutoff. Besides, the radiation analysis is further extended to the cases of superradiant emission from a beam of phase-correlated modulated electron wavepackets. This wavepacket-dependent emission process shows the radiative features of classical-to-quantum transition, indicates a way for measuring the quantum electron wavepacket size and suggests a new direction for exploring light-matter interaction.
description: 49 pages, 7 figures
Testing Scalar-Tensor Gravity with Gravitational-Wave Observations of Inspiralling Compact Binaries
Creators: name: Will, Clifford M.
Publisher: name: arXiv
Year: 1994
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Observations of gravitational waves from inspiralling compact binaries using laser-interferometric detectors can provide accurate measures of parameters of the source. They can also constrain alternative gravitation theories. We analyse inspiralling compact %binaries in the context of the scalar-tensor theory of Jordan, Fierz, Brans and Dicke, focussing on the effect on the inspiral of energy lost to dipole gravitational radiation, whose source is the gravitational self-binding energy of the inspiralling bodies. Using a matched-filter analysis we obtain a bound on the coupling constant $ω_{\rm BD}$ of Brans-Dicke theory. For a neutron-star/black-hole binary, we find that the bound could exceed the current bound of $ω_{\rm BD}>500$ from solar-system experiments, for sufficiently low-mass systems. For a $0.7 M_\odot$ neutron star and a $3 M_\odot$ black hole we find that a bound $ω_{\rm BD} \approx 2000$ is achievable. The bound decreases with increasing black-hole mass. For binaries consisting of two neutron stars, the bound is less than 500 unless the stars' masses differ by more than about $0.5 M_\odot$. For two black holes, the behavior of the inspiralling binary is observationally indistinguishable from its behavior in general relativity. These bounds assume reasonable neutron-star equations of state and a detector signal-to-noise ratio of 10.
description: 10 pages, (3 figures upon request), WUGRAV-94-6
Photodisintegration of the deuteron in the few GeV region using asymptotic amplitudes
Creators: name: Dieperink, A. E. L.
name: Nagorny, S. I.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Exclusive photodisintegration of the deuteron in the 1-4GeV range is described in terms of a simple covariant and gauge invariant approach using an effective counting rule as the hard part of the d-np vertex. At a scattering angle of theta_cm=90 degrees a prescaling behavior of the differential cross section proportional to 1/s^(n-2) with n ~ 12 is obtained; going away from 90 degrees the value of n decreases slowly, in qualitative agreement with the recent data.
description: 10 pages, 3 figures, to appear in Physics Letters B
Algebraic and geometric properties of flag Bott-Samelson varieties and applications to representations
Creators: name: Fujita, Naoki
name: Lee, Eunjeong
name: Suh, Dong Youp
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: Primary: 05E10, Secondary: 14M15, 57S25

description: We introduce the notion of flag Bott-Samelson variety as a generalization of Bott-Samelson variety and flag variety. Using a birational morphism from an appropriate Bott-Samelson variety to a flag Bott-Samelson variety, we compute Newton-Okounkov bodies of flag Bott-Samelson varieties as generalized string polytopes, which are applied to give polyhedral expressions for irreducible decompositions of tensor products of $G$-modules. Furthermore, we show that flag Bott-Samelson varieties are degenerated into flag Bott manifolds with higher rank torus actions, and find the Duistermaat-Heckman measures of the moment map images of flag Bott-Samelson varieties with the torus action together with invariant closed $2$-forms.
Buprestis fascicularis Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Buprestis
Buprestis fascicularis

description: Buprestis fascicularis [spec. nov.]
B. elytris integerrimis striatis: punctis fasciculato-villo- sis, corpore inaurato hirsuto. M. L. U.
Seb. mus. 2. p. 22. t. 20. f. 5. Scarabaeus amboinensis.
Pet. gaz. t. 13. f. 5. Scarabaeus obscure viridis aureus papillis pilis albis obsitis undique hirtus.
Habitat in India.
Elytra punctis quintuplici serie digestis, barbato-fasci- culatis.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 409, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Study of relativistic nuclear collisions at AGS energies from p+Be to Au+Au with hadronic cascade model
Creators: name: Nara, Y.
name: Otuka, N.
name: Ohnishi, A.
name: Niita, K.
name: Chiba, S.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A hadronic cascade model based on resonances and strings is used to study mass dependence of relativistic nuclear collisions from p+Be to Au+Au at AGS energies ($\sim 10\AGeV$) systematically. Hadron transverse momentum and rapidity distributions obtained with both cascade calculations and Glauber type calculations are compared with experimental data to perform detailed discussion about the importance of rescattering among hadrons. We find good agreement with the experimental data without any change of model parameters with the cascade model. It is found that rescattering is of importance both for the explanation of high transverse momentum tail and for the multiplicity of produced particles.
description: 27 pages, 30 figures
Complexity-action of subregions with corners
Creators: name: Caceres, Elena
name: Xiao, Ming-Lei
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the past, the study of the divergence structure of the holographic entanglement entropy on singular boundary regions uncovered cut-off independent coefficients. These coefficients were shown to be universal and to encode important field theory data. Inspired by these lessons we study the UV divergences of subregion complexity-action (CA) in a region with corner (kink). We develop a systematic approach to study all the divergence structures, and we emphasize that the counter term that restores reparameterization invariance on the null boundaries plays a crucial role in simplifying the results and rendering them more transparent. We find that a general form of subregion CA contains a part dependent on the null generator normalizations and a part that is independent of them. The former includes a volume contribution as well as an area contribution. We comment on the origin of the area term as entanglement entropy, and point out that its presence constitutes a robust difference between the two prescriptions to calculate subregion complexity (-action v.s. -volume). We also find universal $\logδ$ divergence associated with the kink feature of the subregion. Similar flat angle limit as the subregion-CV result is obtained.
description: 29 pages, 5 figures
Identifiants numériques : comment améliorer sa présence en ligne ?
Creators: name: Aurélien Moisan
name: Pauplin, Pascale
Publisher: name: Zenodo
Year: 2024
Subjects: Identifiant chercheur
idHAL
ORCID

description: Contenus

• Identifiants chercheuses-chercheurs ORCID et IdHAL : principes, création et utilisation• Règles de signature des publications• Référencement en ligne des chercheuses et chercheurs
The c-term of the TM 3-body Force: to be or not to be
Creators: name: Kamada, H.
name: Hueber, D.
name: Nogga, A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In Faddeev calculations of ^3Hwe study the dependence of the binding on the three nucleon force. We adopt the 2 pi -exchange Tucson-Melbourne three-nucleon force and investigate phenomenologically the dependence on the strength of the individual three-body force operators (a -, b -, c - and d -terms). While the a -term provides a tiny contribution the b - and d -terms provides a tiny contribution the b - and d -terms are important to gain the experimental binding energy. We find two solutions for the c -term, one around the value used in the Tucson-Melbourne model and a new one close to zero, which supports the recentrecommendation of chiral perturbation theory that the short-range c -term should be dropped.
description: 12 pages (3 figures)
A Retinal Image Enhancement Technique for Blood Vessel Segmentation Algorithm
Creators: name: Bandara, A. M. R. R.
name: Giragama, P. W. G. R. M. P. B.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The morphology of blood vessels in retinal fundus images is an important indicator of diseases like glaucoma, hypertension and diabetic retinopathy. The accuracy of retinal blood vessels segmentation affects the quality of retinal image analysis which is used in diagnosis methods in modern ophthalmology. Contrast enhancement is one of the crucial steps in any of retinal blood vessel segmentation approaches. The reliability of the segmentation depends on the consistency of the contrast over the image. This paper presents an assessment of the suitability of a recently invented spatially adaptive contrast enhancement technique for enhancing retinal fundus images for blood vessel segmentation. The enhancement technique was integrated with a variant of Tyler Coye algorithm, which has been improved with Hough line transformation based vessel reconstruction method. The proposed approach was evaluated on two public datasets STARE and DRIVE. The assessment was done by comparing the segmentation performance with five widely used contrast enhancement techniques based on wavelet transform, contrast limited histogram equalization, local normalization, linear un-sharp masking and contourlet transform. The results revealed that the assessed enhancement technique is well suited for the application and also outperforms all compared techniques.
Space, Settlements, Towns: The Influence of Geography and Market Access on Settlement Distribution and Urbanization
Creators: name: Ploeckl, Florian
Publisher: name: The University of Adelaide
Year: 2018
Subjects: subject: 140203 Economic History
subject: FOS: Economics and business
subject: 140218 Urban and Regional Economics

description: The spatial distribution of economic activity is strongly linked to the structure of the urban system. The origin and development of the spatial pattern of this system is separated into two stages, the diffusion of settlements and their potential transition to urban status. The theoretical framework incorporates the influence of geographic characteristics and location interdependence as central mechanisms in both stages. Their relative importance for both is tested empirically with the historical settlement pattern in Saxony as a case study. After investigating with a spatial point process approach how geographic endowments and location interdependence shape the
spatial distribution of all settlements within the state, I apply a spatial probit estimations to determine how these endowments and interdependence, which resembles a market access effect, influence the likelihood that a settlement transitioned to a town. The results indicate that geographic factors are the primary influence on the spatial
distribution and urbanization of settlements, while the spatial relationship has a significant but small clustering impact. Furthermore the determinants of the spatial distribution of size based and institutional towns are compared, demonstrating that the influence of location interdependence is quite close, while there are some significant differences in the influence of physical geography.
ELUCIDATION OF HUMAN THEMES IN THE WORKS OF PAULO COELHO, ESPECIALLY IN THE NOVELS "THE ALCHEMIST" AND "VERONIKA DECIDES TO DIE"
Creators: name: Mirzabdullayeva, Munisa
name: Abdukadyrova, Gulbakhor
Publisher: name: Zenodo
Year: 2024

description: This article examines how Paulo Coelho's novels reveal hidden themes, notably the portrayal of elegant human emotions in "The Alchemist" and "Veronica Decides to Die," while also shedding light on aspects of human nature that resonate universally. Readers are provided with a thought-provoking exploration of nuanced human experiences and characteristics through Coelho's compelling storytelling..
What does “it” mean, anyway? Examining the time course of semantic activation in reference resolution
Creators: name: Cybelle M. Smith
name: Federmeier, Kara D.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Pronouns serve a critical referential function, yet the cognitive processes engaged during pronoun comprehension remain incompletely understood. One view is that encountering a pronoun leads the comprehender to reactivate the semantic features of its antecedent. We examined this by manipulating the concreteness of a noun antecedent and assessing whether an Event Related Potential (ERP) concreteness effect was elicited at a downstream pronoun. We observed a robust concreteness effect at the noun, but no similar effect at the pronoun. We also examined whether N400 semantic priming from the antecedent would increase on content words shortly following the pronoun, relative to those preceding it. Again, although we observed semantic priming following the noun, it did not increase following the pronoun. Our data suggest that pronouns do not induce the activation of (much) new semantic information in long-term memory, perhaps instead triggering an attentional shift towards their antecedents’ extant representations within working memory.
“How are you doing?”. Parental Well-being in Families with Neurodivergent Children: A Systematic Review
Creators: name: Serafini, Elisa
Publisher: name: Journal of Clinical & Developmental Psychology
Year: 2025

description: Background: Parental well-being is a critical concern for families with neurodivergent children, including those with autism, ADHD, and intellectual disabilities. These conditions impact family dynamics, increasing stress levels and affecting emotional well-being. This review aims to summarize recent findings on the psychological challenges and coping strategies of parents in these families.  

Methods: A systematic review was conducted using PRISMA guidelines. PsycINFO, Scopus, and Web of Science databases were searched for studies published between 2014 and 2024, focusing on parental stress, coping, and well-being.  

Results: A total of 29 studies were reviewed. Findings indicate that parents of neurodivergent children experience elevated stress, especially those with autistic children. Social support and tailored interventions were identified as crucial factors for improving parental well-being.  

Conclusions:Parents of neurodivergent children face significant emotional challenges. Targeted support and strategies for coping are necessary to enhance their mental health and overall quality of life.


Keywords: Parental well-being; Neurodivergent children; Systematic review
description: Journal of Clinical & Developmental Psychology, Vol 7, No 1 (2025)
Identifiants numériques : comment améliorer sa présence en ligne ?
Creators: name: Moisan, Aurélien
Publisher: name: Zenodo
Year: 2023
Subjects: Identifiant chercheur
idHAL
ORCID

description: Contenus
 • Identifiants chercheuses-chercheurs ORCID et IdHAL : principes, création et utilisation
 • Règles de signature des publications
 • Référencement en ligne des chercheuses et chercheurs
Buprestis hirta Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Buprestis
Buprestis hirta

description: Buprestis hirta [spec. nov.]
B. elytris integerrimis, pedibus ferrugineis, corpore hirsuto. M. L. U.
Habitat in Indiis.
Thorax & Elytra hirta.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 409, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Heating up Exotic RG Flows with Holography
Creators: name: Bea, Yago
name: Mateos, David
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use holography to study finite-temperature deformations of RG flows that have exotic properties from an RG viewpoint. The holographic model consists of five-dimensional gravity coupled to a scalar field with a potential. Each negative extrema of the potential defines a dual conformal field theory. We find all the black brane solutions on the gravity side and use them to construct the thermal phase diagrams of the dual theories. We find an intricate phase structure that reflects and extends the exotic properties at zero temperature.
description: 19 pages, 17 figures
Adolescent Mental Health in the Digital Era: Social Media, Screen Time, and Digital Literacy
Creators: name: Sechi, Marta
Publisher: name: Journal of Clinical & Developmental Psychology
Year: 2025

description: Background: The increasing exposure of adolescents to digital technologies has raised significant concerns regarding its psychological implications. This narrative review examines the impact of social media use on adolescent mental health, the psychological consequences of excessive screen time, and the role of digital literacy in promoting online safety. Methods: A narrative review was carried out, integrating quantitative and qualitative research on social media use, screen time, and digital literacy. The analysis emphasized key themes identified in studies from the past two decades, with adolescents serving as the primary participants. Results: Prolonged use of social media has been linked to anxiety, depression, and low self-esteem, primarily due to mechanisms of social comparison and the pursuit of approval. Moreover, excessive screen time is associated with social isolation and a decline in social skills, as digital interactions replace face-to-face contact. The concept of digital literacy emerges as a crucial preventive approach, equipping adolescents with the skills to engage with technology responsibly and mitigate psychological risks. Conclusions: Overall, these findings emphasize the importance of balanced technology use and targeted interventions, such as fostering digital literacy, to address the psychological challenges posed by the pervasive use of digital technologies among adolescents.
description: Journal of Clinical & Developmental Psychology, Vol 7, No 1 (2025)
Phase Transition in Iterated Quantum Protocols for Noisy Inputs
Creators: name: Malachov, Martin
name: Jex, Igor
name: Kálmán, Orsolya
name: Kiss, Tamás
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum information processing exploits all the features quantum mechanics offers. Among them there is the possibility to induce nonlinear maps on a quantum system by involving two or more identical copies of the given system in the same state. Such maps play a central role in distillation protocols used for quantum key distribution. We determine that such protocols may exhibit sensitive, quasi-chaotic evolution not only for pure initial states but also for mixed states, i.e. the complex dynamical behavior is not destroyed by small initial uncertainty. We show that the appearance of sensitive, complex dynamics associated with a fractal structure in the parameter space of the system has the character of a first order phase transition. The purity of the initial state plays the role of the control parameter and the dimension of the fractal structure is independent of the purity value after passing the phase transition point. The critical purity coincides with the purity of a repelling fixed point of the dynamics and we show that all the pre-images of states from the close neighborhood of pure chaotic initial states have purity larger than this. Initial states from this set can be considered as quasi-chaotic.
Cluster-based Approach to Improve Affect Recognition from Passively Sensed Data
Creators: name: Ameko, Mawulolo K.
name: Cai, Lihua
name: Boukhechba, Mehdi
name: Daros, Alexander
name: Chow, Philip I.
name: Teachman, Bethany A.
name: Gerber, Matthew S.
name: Barnes, Laura E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Negative affect is a proxy for mental health in adults. By being able to predict participants' negative affect states unobtrusively, researchers and clinicians will be better positioned to deliver targeted, just-in-time mental health interventions via mobile applications. This work attempts to personalize the passive recognition of negative affect states via group-based modeling of user behavior patterns captured from mobility, communication, and activity patterns. Results show that group models outperform generalized models in a dataset based on two weeks of users' daily lives.
description: BHI2018
Invariant properties of a locally salient dither pattern with a spatial-chromatic histogram
Creators: name: Bandara, A. M. R. R.
name: Ranathunga, L.
name: Abdullah, N. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Compacted Dither Pattern Code (CDPC) is a recently found feature which is successful in irregular shapes based visual depiction. Locally salient dither pattern feature is an attempt to expand the capability of CDPC for both regular and irregular shape based visual depiction. This paper presents an analysis of rotational and scale invariance property of locally salient dither pattern feature with a two dimensional spatialchromatic histogram, which expands the applicability of the visual feature. Experiments were conducted to exhibit rotational and scale invariance of the feature. These experiments were conducted by combining linear Support Vector Machine (SVM) classifier to the new feature. The experimental results revealed that the locally salient dither pattern feature with the spatialchromatic histogram is rotationally and scale invariant.
Stability of the Black Hole Horizon and the Landau Ghost
Creators: name: Bekenstein, Jacob D.
name: Rosenzweig, Carl
Publisher: name: arXiv
Year: 1994
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The stability of the black hole horizon is demanded by both cosmic censorship and the generalized second law of thermodynamics. We test the consistency of these principles by attempting to exceed the black hole extremality condition in various process in which a U(1) charge is added to a nearly extreme Reissner--Nordström black hole charged with a {\it different\/} type of U(1) charge. For an infalling spherical charged shell the attempt is foiled by the self--Coulomb repulsion of the shell. For an infalling classical charge it fails because the required classical charge radius exceeds the size of the black hole. For a quantum charge the horizon is saved because in order to avoid the Landau ghost, the effective coupling constant cannot be large enough to accomplish the removal.
description: 12 pages, RevTeX
It's all in the Mail: The Economic Geography of the German Empire
Creators: name: Ploeckl, Florian
Publisher: name: The University of Adelaide
Year: 2018
Subjects: subject: 140203 Economic History
subject: FOS: Economics and business
subject: 140218 Urban and Regional Economics

description: Information exchange is a necessary prerequisite for economic exchange over space. This relationship implies that information exchange data corresponds to the location of economic activity and therefore also of population. Building on this relationship we use postal data to analyse the spatial structure of the population distribution in the German Empire of 1871. In particular we utilize local volume data of a number of postal information transmission services
and a New Economic Geography model to create two index measures, Information Intensity and Amenity. These variables respectively influence the two mechanisms behind the urban population distribution, namely agglomeration
forces and location endowments. By testing the influence of
actual location characteristics on these indices we identify which location factors mattered for the population distribution and show that a number of characteristics worked through both mechanisms. The model is then used
to determine counterfactual population distributions, which demonstrate the relative importance of particular factors, most notably the railroad whose removal shows a 34% lower urban population. A data set of large locations for
the years 1877 to 1895 shows that market access increases drove the magnitude of the increase in urban population, while endowment changes shaped their relative pattern.
Dimensionally Correct Power Law Scaling Expressions for L-mode Confinement
Creators: name: Riedel, Kurt S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Confinement scalings of divertor and radiofrequency heated discharges are shown to differ significantly from the standard neutral beam heated limiter scaling. The random coefficient two stage regression algorithm is applied to a neutral beam heated limiter subset of the ITER L mode database as well as a combined dataset. We find a scaling similar to Goldston scaling for the NB limiter dataset and a scaling similar to ITER89P for the combined dataset. Various missing value algorithms are examined for the missing $B_t$ scalings. We assume that global confinement can be approximately described a power law scaling. After the second stage, the constraint of collisional Maxwell Vlasov similarity is tested and imposed. When the constraint of collisional Maxwell Vlasov similarity is imposed, the C.I.T. uncertainty is significantly reduced while the I.T.E.R. uncertainty is slightly reduced.
Topological Measure and Graph-Differential Geometry on the Quotient Space of Connections
Creators: name: Lewandowski, Jerzy
Publisher: name: arXiv
Year: 1994
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: (This is a report for the Proceedings of ``Journees Relativistes 1993'' written in September 1993. Containes a short description of the results published elsewhere in the joint paper with A. Ashtekar) Integral calculus on the space of gauge equivalent connections is developed. By carring out a non-linear generalization of the theory of cylindrical measures on topological vector spaces, a faithfull, diffeomorphism invariant measure is introduced on a suitable completion of the quotient space. The strip (i.e. momentum) operators are densely-defined in the resulting Hilbert space and interact with the measure correctly, to become essentially self adjoint operators.
description: 3 pp., Proceedings of ``Journees Relativistes 1993''
Effects of Neutron Spatial Distributions on Atomic Parity Nonconservation in Cesium
Creators: name: Pollock, S. J.
name: Welliver, M. C.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We have examined modifications to the nuclear weak charge due to small differences between the spatial distributions of neutrons and protons in the Cs nucleus. We derive approximate formulae to estimate the value and uncertainty of this modification based only on nuclear rms neutron and proton radii. Present uncertainties in neutron distributions in Cs are difficult to quantify, but we conclude that they should not be neglected when using atomic parity nonconservation experiments as a means to test the Standard Model.
description: 5 pages, RevTeX, slightly revised, one figure added
Gravitational waves from conformal symmetry breaking
Creators: name: Prokopec, Tomislav
name: Rezacek, Jonas
name: Swiezewska, Bogumila
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the electroweak phase transition in the conformal extension of the standard model known as SU(2)cSM. Apart from the standard model particles, this model contains an additional scalar and gauge field that are both charged under the hidden SU(2)$_X$. This model generically exhibits a very strong phase transition that proceeds after a large amount of supercooling. We estimate the gravitational wave spectrum produced in this model and show that its amplitude and frequency fall within the observational window of LISA. We also discuss potential pitfalls and relevant points of improvement required to attain reliable estimates of the gravitational wave production in this - as well as in more general - class of models. In order to improve perturbativity during the early stages of transition that ends with bubble nucleation, we solve a thermal gap equation in the scalar sector inspired by the 2PI effective action formalism.
description: 32 pages, 9 figures, v2: discussion extended, references added, minor error corrected, v3: discussion of daisy resummation and plots improved, one reference added; version accepted for publication in Journal of Cosmology and Astroparticle Physics
Buprestis nitidula Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Buprestis
Buprestis nitidula

description: Buprestis nitidula [spec. nov.]
B. elytris integerrimis, thorace marginato utrinque depresso, corpore nitidissimo.
Habitat in Europae aquosis.
Magnitudo Culicis. Corpus undique nitidissimum & colore varians e viridi, caeruleo aut aureo.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 410, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
D1.7 Set-up of pilot plant for treatment of the typologies of building waste to be mixed to geopolymer materials and pilot production
Creators: name: ECO
name: CNR-ICMATE
Publisher: name: Zenodo
Year: 2017
Subjects: InnoWEE
H2020
deliverable
pilot plant
CDW
secondary raw materials
modification desing

description: The Deliverable D1.7 “Set-up of pilot plant for treatment of the typologies of building waste to be mixed to geopolymer materials and pilot production” presents the modifications to the separation line and the processing of CDWs (Construction and Demolition Waste) to be performed to produce the SRM (Secondary Raw Material) most suitable for the InnoWEE project.
Editorial
Creators: name: Spratley, Jorge
Publisher: name: Revista Portuguesa de Otorrinolaringologia e Cirurgia de Cabeça e Pescoço
Year: 2014

description: .
description: Revista Portuguesa de Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, v. 52 n. 4 (2014): Dezembro
title: Детали машин и основы конструирования. Проектирование механических передач
title: Учебное пособие
titleType: Subtitle
Creators: name: Меньшенин С.Е.
Publisher: name: Ай Пи Ар Медиа
Year: 2020

description: В учебном пособии приведены методики детального расчета механических приводов различного назначения, позволяющие получить редукторную передачу с заданными технологическими параметрами. Рассмотрена современная методика расчета механических передач, валов, подшипников качения, соединений «вал — ступица» шпонками, шлицами и посадками с натягом, методика выбора приведенных муфт и т.д. Все методики сопровождаются подробными примерами расчетов, выполненными в среде MathCad по авторской программе. В издании содержится значительное количество справочного материала, позволяющего восполнить нехватку учебно-справочной литературы в библиотеках. Предложенная авторская программа расчета и моделирования зубчатых передач в среде MathCad подразумевает вариантность и наглядность выполняемых расчетов. Программа рассчитана для установки в компьютерном классе с любым количеством ЭВМ. Издание будет полезно при выполнении курсовых, лабораторных и практических работ. Подготовлено в соответствии с Федеральным государственным образовательным стандартом высшего образования. Предназначено для студентов технических специальностей, изучающих дисциплину «Детали машин и основы конструирования».
Neutron rich nuclei in density dependent relativistic Hartree-Fock theory with isovector mesons
Creators: name: Chen, B. Q.
name: Ma, Z. Y.
name: Gruemmer, F.
name: Krewald, S.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Density dependent relativistic Hartree-Fock theory has been extended to describe properties of exotic nuclei. The effects of Fock exchange terms and of pi - and rho - meson contributions are discussed. These effects are found to be more important for neutron rich nuclei than for nuclei near the valley of stability.
description: 10 pages, 5 figures, LaTeX, macro packages graphicx and times
Seabird breeding populantions decrease along the arid coastline of South Africa’s Northern Cape province
Creators: name: Crawford, Robert JM
name: Dyer, Bruce M
name: Geldenhuys, Louise
name: W Herman Oosthuizen
name: Azwianewi B Makhado
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Molecular Biology
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: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Numbers of eight seabird species that have bred in coastal areas of South Africa’s arid Northern Cape province have all shown substantial decreases since initial estimates of their abundance were made in the latter part of the twentieth century. Likely drivers of these decreases include reduced availability of food and the loss of suitable breeding habitat, including in the Orange River Estuary and at coastal pans and islands, which has resulted from a variety of human alterations, uses and disturbances. The decreases have contributed to a worsening conservation status of several of the seabirds, some of which are endemic to southern Africa. The more adaptable species appear to have partially offset habitat loss by moving to alternative breeding sites. However, substitute habitat is limited and the more numerous species suffered relatively large decreases. In order to conserve remnant populations it will be necessary to prevent further loss of breeding habitat, restore some former habitats and provide suitable, alternative habitat.
Quantization of Field Theories Generalizing Gravity-Yang-Mills Systems on the Cylinder
Creators: name: Schaller, P.
name: Strobl, T.
Publisher: name: arXiv
Year: 1994
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Pure gravity and gauge theories in two dimensions are shown to be special cases of a much more general class of field theories each of which is characterized by a Poisson structure on a finite dimensional target space. A general scheme for the quantization of these theories is formulated. Explicit examples are studied in some detail. In particular gravity and gauge theories with equivalent actions are compared. Big gauge transformations as well as the condition of metric nondegeneracy in gravity turn out to cause significant differences in the structure of the corresponding reduced phase spaces and the quantum spectra of Dirac observables. For $R^2$ gravity coupled to SU(2) Yang Mills the question of quantum dynamics (`problem of time') is addressed. [This article is a contribution to the proceedings (to appear in LNP) of the 3rd Baltic RIM Student Seminar (1993). Importance is attached to concrete examples. A more abstract presentation of the ideas underlying this article (including new developments) is found in hep-th/9405110.]
description: 26, pages, TUW-94-2
Exploring dark matter, neutrino mass and $R_{K^{(*)},ϕ}$ anomalies in $L_μ-L_τ$ model
Creators: name: Singirala, Shivaramakrishna
name: Sahoo, Suchismita
name: Mohanta, Rukmani
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate Majorana dark matter in a new variant of $U(1)_{L_μ-L_τ}$ gauge extension of Standard Model, where the scalar sector is enriched with an inert doublet and a $(\bar{3},1,1/3)$ scalar leptoquark. We compute the WIMP-nucleon cross section in leptoquark portal and the relic density mediated by inert doublet components, leptoquark and the new $Z^{\prime}$ boson. We constrain the parameter space consistent with Planck limit on relic density, PICO-60 and LUX bounds on spin-dependent direct detection cross section. Furthermore, we constrain the new couplings from the present experimental data on ${\rm Br}(τ\to μν_τ\bar ν_μ)$, ${\rm Br}( B \to X_s γ)$, ${\rm Br}( B^0 \to K^0 μ^+ μ^-)$, ${\rm Br}(B^+ \to K^+ τ^+ τ^-)$ and $B_s-\bar{B_s}$ mixing, which occur at one-loop level in the presence of $Z^\prime$ and leptoquark. Using the allowed parameter space, we estimate the form factor independent $P_{4,5}^\prime$ observables and the lepton non-universality parameters $R_{K}$, $R_{K^*}$ and $R_ϕ$. We also briefly discuss about the neutrino mass generation at one-loop level and the viable parameter region to explain current neutrino oscillation data.
description: 34 pages, 15 figures, to appear in Phys. Rev. D