cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Self-limitation as an explanation for species' relative abundances and the long-term persistence of rare species
Creators: name: Yenni, Glenda Marie
Publisher: name: Utah State University
Year: 2013

description: Much of ecological theory describes species interactions. These interactions often play an important theoretical role in facilitating coexistence. In particular, rarity in ecological communities, though often observed, provides a significant challenge to theoretical and empirical ecologists alike. I use a plant community model to simulate the effect of stronger negative frequency dependence on the long-term persistence of the rare species in a simulated community. This strong self-limitation produces long persistence times for the rare competitor, which otherwise succumb quickly to stochastic extinction. The results suggest that the mechanism causing species to be rare in this case is the same mechanism allowing those species to persist. To determine if ecological communities generally show the theoretical pattern, I estimate the strength of frequency-dependent population dynamics using species abundance data from 90 communities across a broad range of environments and taxonomic groups. In approximately half of the analyzed communities, rare species showed disproportionately strong negative frequency dependence. In particular, a pattern of increasing frequency dependence with decreasing relative abundance was seen in these communities, signaling the importance of this mechanism for rare species specifically. Insight into the special population dynamics of rare species will inform conservation efforts in response to climate change and other disturbance. Further difficulties in the detection of theoretical patterns in ecological data may be a result of the ecological currency used. Though ecologists typically use abundance data to test theories, energy use is another ecological currency that may be more relevant in some cases. In particular when detecting patterns that are a result of species interactions, the currency used should be the one in which those interactions actually operate. I compare the results of using abundance and energy use to detect two processes with well-defined expectations. The first is a description of population dynamics, the above described relationship between relative abundance and self-limitation. The second, compensatory dynamics, is a description of community-level dynamics. I find that the currency used alters the results, and thus the species-level implications. It does not, however, alter the overall pattern that would have theoretical implications. Results in both currencies support the pattern of strong self-limitation for persistent rare species.
Dust Transport in Protostellar Disks Through Turbulence and Settling
Creators: name: Turner, N. J.
name: Carballido, A.
name: Sano, T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We apply ionization balance and MHD calculations to investigate whether magnetic activity moderated by recombination on dust can account for the mass accretion rates and the mid-infrared spectra and variability of protostellar disks. The MHD calculations use the stratified shearing-box approach and include grain settling and the feedback from the changing dust abundance on the resistivity of the gas. The two-decade spread in accretion rates among T Tauri stars is too large to result solely from variety in the grain size and stellar X-ray luminosity, but can be produced by varying these together with the disk magnetic flux. The diversity in the silicate bands can come from the coupling of grain settling to the distribution of the magneto-rotational turbulence, through three effects: (1) Recombination on grains yields a magnetically inactive dead zone extending above two scale heights, while turbulence in the magnetically active disk atmosphere overshoots the dead zone boundary by only about one scale height. (2) Grains deep in the dead zone oscillate vertically in waves driven by the turbulent layer above, but on average settle at the laminar rates, so the interior of the dead zone is a particle sink and the disk atmosphere becomes dust-depleted. (3) With sufficient depletion, the dead zone is thinner and mixing dredges grains off the midplane. The MHD results also show that the magnetic activity intermittently lifts clouds of dust into the atmosphere. The photosphere height changes by up to one-third over a few orbits, while the extinction along lines of sight grazing the disk surface varies by factors of two over times down to 0.1 orbit. We suggest that the changing shadows cast by the dust clouds on the outer disk are a cause of the daily to monthly mid-infrared variability in some young stars. (Abridged.)
description: ApJ in press
title: The Psychological and Physiological Effects of Using a Therapy Dog in Mindfulness Training
Creators: name: Henry, Courtney L
Publisher: name: Utah State University
Year: 2013

description: Research from various fields has demonstrated the benefits of human-animal interaction for physical and mental health. Recently, animal-assisted therapy (AAT) has become increasingly popular in a variety of healthcare settings--including inpatient mental health care facilities. However, there is limited research investigating the efficacy of AAT in outpatient sites. In addition, the impact of animals as an adjunct to psychotherapy treatment remains mostly uninvestigated. Therefore, it is necessary to empirically explore what therapy animals may contribute to specific treatment interventions with specific populations. The present study was a randomized control trial examining the psychological and physiological effects of adding AAT to a modified mindfulness-based stress reduction program (MBSR) for clients experiencing psychological distress, including anxious and depressive symptoms. It was hypothesized that AAT would be particularly complementary to mindfulness-based interventions because the therapy dog would provide a focus for attention to the current experience and exemplify acceptance and "being," enabling the understanding and practice of the main aspects of mindfulness. Subjects (N = 21) were randomly assigned to the MBSR or MBSR + AAT group and then completed an intervention consisting of six 50-minute individual therapy sessions. Each session included didactic and experiential components modified for delivery with or without a certified therapy dog. State and trait mindfulness, state and trait anxiety, psychological distress, blood pressure, and heart rate were assessed at each session. Results indicate that all participants experienced fewer anxiety and depressive symptoms, decreased psychological distress, and increased mindfulness skills from pre- to posttreatment. Additionally, state anxiety, blood pressure, and heart rate decreased within sessions. No significant difference was found between the control and experimental groups, indicating that interaction with a therapy dog had no impact on symptom reduction, skill acquisition, or client satisfaction in the current study. Future studies need to increase methodological rigor by including multiple therapist/dog teams and increasing sample size. Moreover, researchers must examine more thoroughly the role the dog might have in altering the social environment, such as reducing stigma surrounding mental health services and enhancing the therapeutic alliance.
Ammassi stellari, compagnie di astri nascenti
Creators: Mario Guarcello
Publisher: name: Media Inaf
Year: 2017

Sono i luoghi dove nascono e si formano le stelle. Da nubi di gas che collassano su sé stesse per effetto della gravità prendono forma i filamenti, e lungo questi le singole stelle. Ogni immagine di un ammasso stellare rappresenta un’istantanea dell’evoluzione stellare a una determinata età
Non-linear QCD meets data: A global analysis of lepton-proton scattering with running coupling BK evolution
Creators: name: Albacete, J. L.
name: Armesto, N.
name: Milhano, J. G.
name: Salgado, C. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We perform a global fit to the structure function F_2 measured in lepton-proton experiments at small values of Bjorken-x, x\le 0.01, for all experimentally available values of Q^2, 0.045 GeV^2\le Q^2 \le 800 GeV^2. We show that the recent improvements resulting from the inclusion of running coupling corrections allow for a description of data in terms of non-linear QCD evolution equations. In this approach F_2 is calculated within the dipole model with all Bjorken-x dependence described by the running coupling Balitsky-Kovchegov equation. Two different initial conditions for the evolution are used, both yielding excellent fits to data with χ^2/d.o.f.<1.1. Data for the proton longitudinal structure function F_L, not included in the fits, are also well described. We provide predictions for F_2 and F_L in the kinematical regions of interest for future colliders and ultra-high energy cosmic rays. Our analysis allows to perform a first principle extrapolation of the proton-dipole scattering amplitude. A numerical implementation of our results down to x=10^{-12} is released as a computer code for public use.
description: 24 pages and 6 figures, revised version
Some techniques for the study of roots in place; with special reference to their use in the root development of four grasses and two legumes of econmic importance.
Creators: name: Frederick, Rexingford Albert
Publisher: name: University of British Columbia
Year: 2011

description: There are several limitations to the use of the 'direct' method for studying root systems in their natural habitats. Newer techniques are needed in understanding many characteristics of roots, which are still obscure. The growing of orchardgrass, colonial bentgrass and red clover in special containers, demonstrated a technique for optical study of root systems, and illustrated an apparent localization of individual plant roots in dense stands. Field tests on square foot plots of orchardgrass and Kentucky bluegrass with placements of a dye, acid fuchsin, at various depths, failed to replicate the preliminary laboratory findings, that the absorption by roots of this material not only stained the roots red, but was soon evident in the aerial portions. Plant injections and soil placement of the fluorescent compounds, eosin, fluorescein and esculin failed to produce fluorescence in plants growing in special containers. The strategic placements of small quantities of radioactive phosphorus (P³²) at various depths in plots of orchard grass, red fescue, Kentucky bluegrass and colonial bentgrass on Alderwood loamy sand, enabled the depth of root penetration to be assessed by measuring radioactivity in the leaves with a Geiger-Muller counter. The movement of P³² in the soil was studied on the profiles of similar plots kept bare of vegetation, and on which similar placements were made. A modified technique resulted in the localization of the radioactive phosphorus in the soil. Plants in established plots of orchardgrass, red fescue, Kentucky bluegrass and colonial bentgrass were injected with P³² near the crown. The movement to the roots was found to be very slow when radioactivity was checked in the roots from the profiles. In a four week old alfalfa clone, injected three weeks earlier, P³² was recorded to have reached the maximum depth attained by visible roots. This was not the case with the grasses. The absorption of lithium from lithium chloride placed at various depths in rows of orchardgrass and alfalfa was determined by photometric analysis of samples from aerial portions. The extent of the root penetration was determined by the relatively higher concentrations of lithium in plants located above these placements.
Kelt-9b, il pianeta bollente
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2017

La temperatura arriva a 4600 gradi kelvin, e la sua atmosfera non ha eguali né tra i pianeti né tra le stelle che conosciamo. Alla scoperta, pubblicata oggi su Nature, hanno contribuito l’Osservatorio astronomico dell’Università di Salerno e l’Osservatorio Canis Major
title: ÐÐ»Ð¸ÑÐ½Ð¸Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² Ð³ÑÑÐ½ÑÐ° Ð¸ ÑÑ ÐµÐ¼ Ð¿Ð¾Ð´ÐºÐ»ÑÑÐµÐ½Ð¸Ñ Ð½Ð° Ð¿ÐµÑÐµÑ Ð¾Ð´Ð½ÑÐµ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð·Ð°Ð·ÐµÐ¼Ð»ÑÑÑÐµÐ³Ð¾ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð°
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ»ÐµÐºÑÐµÐµÐ², ÐÐ»Ð°Ð´Ð¸Ð¼Ð¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2016
Subjects: Ð¿ÐµÑÐµÑ Ð¾Ð´Ð½ÑÐµ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸
Ð½ÐµÐ»Ð¸Ð½ÐµÐ¹Ð½ÑÐ¹ Ð¾Ð³ÑÐ°Ð½Ð¸ÑÐ¸ÑÐµÐ»Ñ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹
Ð·Ð°Ð·ÐµÐ¼Ð»ÑÑÑÐ¸Ðµ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð°
Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾Ñ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½ÑÑ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹
ÐºÐ¾Ð¾ÑÐ´Ð¸Ð½Ð°ÑÐ¸Ñ Ð¸Ð·Ð¾Ð»ÑÑÐ¸Ð¸
transient characteristic
nonlinear surge arrester
grounding device
voltage pulse generator
insulation coordination

description: Ð Ð¿ÐµÑÐ²Ð¾Ð¹ Ð³Ð»Ð°Ð²Ðµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐµ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð°ÑÐ¿ÐµÐºÑÑ Ð¿Ð¾Ð´Ð½ÑÑÐ¾Ð¹ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ: Ð¾Ñ Ð²Ð¾Ð¿ÑÐ¾ÑÐ¾Ð² Ð³ÑÐ¾Ð·Ð¾Ð·Ð°ÑÐ¸ÑÑ Ð¸ Ð²Ð¸Ð´Ð¾Ð² Ð·Ð°ÑÐ¸ÑÐ½ÑÑ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ¾Ð² Ð´Ð¾ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº Ð·Ð°Ð·ÐµÐ¼Ð»ÑÑÑÐ¸Ñ ÑÑÑÑÐ¾Ð¹ÑÑÐ² Ð¸ ÑÐ²Ð¾Ð¹ÑÑÐ² Ð³ÑÑÐ½ÑÐ° Ð½Ð° ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ Ð³ÑÐ¾Ð·Ð¾Ð·Ð°ÑÐ¸ÑÑ. ÐÐ¾ Ð²ÑÐ¾ÑÐ¾Ð¹ Ð³Ð»Ð°Ð²Ðµ Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð° ÑÐµÐ»Ñ Ð¸ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ Ð·Ð°Ð´Ð°ÑÐ¸ ÑÐ°Ð±Ð¾ÑÑ. Ð ÑÑÐµÑÑÐµÐ¹ Ð³Ð»Ð°Ð²Ðµ Ð¾Ð¿Ð¸ÑÐ°Ð½Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ, Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²ÑÐ²Ð°ÑÑÐ¸Ðµ Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ÑÑÑ Ð´Ð°Ð»ÑÐ½ÐµÐ¹ÑÐµÐ³Ð¾ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ ÑÐ°Ð±Ð¾ÑÑ. Ð ÑÐµÑÐ²ÐµÑÑÐ¾Ð¹ Ð³Ð»Ð°Ð²Ðµ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð° ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ðµ ComsolMultiphysics Ð¸ÑÑÐ»ÐµÐ´ÑÐµÐ¼Ð¾Ð³Ð¾ ÐÐ£, Ð¿Ð¾ Ð¸ÑÐ¾Ð³Ð°Ð¼ ÑÑÐ¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÐµ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑÐºÑÐ¸Ð¿ÑÐ° Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ðµ Matlab Ð¿ÐµÑÐµÑÐ¾Ð´Ð½ÑÐµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ ÑÐ¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ ÐÐ£.
description: In the first chapter we discuss the various theoretical aspects of the raised problem: from questions of lighting protection and types of protective devises to influence the characteristics of grounding devices and properties jo the soil on the effectiveness of lighting protection.In the second chapter we set a goal and work tasks indentified. In the third chapter describes experimental studies justifying the need for further implementation of the work.
In Valle d’Aosta a scuola d’astronomia
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2017

Il titolo della tradizionale scuola estiva a Saint-Barthélemy è “Questo sorprendente Sistema solare”. Agli interventi tenuti dai fisici dell’Osservatorio della Val d'Aosta si aggiungono, quest’anno, quelli di relatori provenienti da altri istituti di ricerca italiani, fra i quali l’Inaf
title: ÐÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½ÑÑ Ð´Ð¾ÑÐ¾Ð³
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
title: Road design
Creators: name: ÐÐ¾Ð²Ð¸Ðº, ÐÐ½Ð°ÑÐ¾Ð»Ð¸Ð¹
name: ÐÐ°Ð·Ð°ÑÐµÐ², Ð®ÑÐ¸Ð¹
name: ÐÐ»ÐµÐºÑÐµÐµÐ², Ð¡ÐµÑÐ³ÐµÐ¹
name: ÐÐ¸ÑÐ¸Ð»Ð»Ð¾Ð², Ð¡ÐµÑÐ³ÐµÐ¹
name: Ð¢ÐµÑÐµÑ, ÐÐ°ÐºÑÐ¸Ð¼
name: Ð¢ÑÐµÐ¿Ð°Ð»Ð¸Ð½, ÐÐ»Ð°Ð´Ð¸Ð¼Ð¸Ñ
name: Ð£ÐºÐ¾Ð»Ð¾Ð², Ð¡ÐµÑÐ³ÐµÐ¹
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2021
Subjects: ÐÐ²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½ÑÐµ Ð´Ð¾ÑÐ¾Ð³Ð¸

description: Ð£ÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÐµÑ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð¾Ð¼Ñ ÑÑÐ°Ð½Ð´Ð°ÑÑÑ Ð²ÑÑÑÐµÐ³Ð¾ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¤ÐµÐ´ÐµÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð°Ð²ÑÐ¾Ð½Ð¾Ð¼Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÑÑÐµÐ¶Ð´ÐµÐ½Ð¸Ñ Ð²ÑÑÑÐµÐ³Ð¾ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Â«Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾Â» Ð¿Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ¾Ð² 08.03.01 Â«Ð¡ÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð¾Â», Ð¿Ð¾ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ðµ Â«ÐÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½ÑÑ Ð´Ð¾ÑÐ¾Ð³Â». Ð Ð°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÑÑÑÑ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¸ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð²Ð¾Ð¿ÑÐ¾ÑÑ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½ÑÑ Ð´Ð¾ÑÐ¾Ð³, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐ¸Ð¼ÐµÑÑ ÑÐµÑÐµÐ½Ð¸Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð¿ÑÐ¾ÐµÐºÑÐ½ÑÑ Ð·Ð°Ð´Ð°Ñ. ÐÑÐ¸ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ñ Ð´ÐµÐ¹ÑÑÐ²ÑÑÑÐ¸Ðµ Ð½Ð¾ÑÐ¼Ð°ÑÐ¸Ð²Ð½ÑÐµ Ð¸ ÑÑÐºÐ¾Ð²Ð¾Ð´ÑÑÐ¸Ðµ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÑ Ð¿Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½ÑÑ Ð´Ð¾ÑÐ¾Ð³ Ð¾Ð±ÑÐµÐ³Ð¾ Ð¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ. ÐÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð², Ð°ÑÐ¿Ð¸ÑÐ°Ð½ÑÐ¾Ð², Ð¿ÑÐµÐ¿Ð¾Ð´Ð°Ð²Ð°ÑÐµÐ»ÐµÐ¹ ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ñ Ð²ÑÐ·Ð¾Ð², ÑÐ°Ð±Ð¾ÑÐ½Ð¸ÐºÐ¾Ð² Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¹ Ð¸ ÑÑÑÐµÐ¶Ð´ÐµÐ½Ð¸Ð¹ Ð´Ð¾ÑÐ¾Ð¶Ð½Ð¾Ð³Ð¾ ÑÐ¾Ð·ÑÐ¹ÑÑÐ²Ð°.
description: The tutorial meets the educational standard of higher education of the Federal State Autonomous Educational Institution of Higher Education "Peter the Great St. Petersburg Polytechnic University" in the bachelor's degree program 08.03.01 "Civil Engineering" in the discipline "Road Design". The main theoretical and practical issues of road design are considered, as well as examples of how to solve the main design problems. Preparing the tutorial, the authors used the current normative and regulatory documents on the design of public roads. It is intended for students, post graduate students, teachers of engineering universities, employees of organizations and institutions of the road sector.
title: Risk and Climate at High Elevation: A Z-score Model Case Study for Prehistoric Human Occupation of Wyoming's Wind River Range
Creators: name: Losey, Ashley K
Publisher: name: Utah State University
Year: 2013

description: Holocene climate likely influenced prehistoric hunter-gatherer subsistence and mobility as changing climate patterns affected food resources. Of interest here is whether climate-driven resource variability influenced peoples in the central Rocky Mountains. This study employed the z-score model to predict how foragers coped with resource variability. The exercise enabled exploration of the relationship between climate, resources, and foraging strategies at High Rise Village (48FR5891), an alpine residential site in Wyoming's Wind River Range occupied between 2800-250 cal B.P. The test was applied to occupations dating to the Medieval Warm Period (1150-550 cal B.P.) and the Little Ice Age (550-100 cal B.P.). Using regional characterizations of temporal variability for these climate periods, a z-score model was employed to develop predictions of how foragers coped with resource variability and predictability during both periods. The model predicted foraging decisions at High Rise Village that managed the risk of caloric shortfall during the slow-changing Medieval Warm Period and the highly variable Little Ice Age. Predictions for each period were tested against corresponding archaeological expectations for subsistence remains, mobility and technology requirements, and the frequency of site use. Further, this study employed a dendroclimatological study to locally characterize the climate periods and test model assumptions of their contrasting patterns of variability. The dendroclimatological study corroborates model assumptions and finds that the Medieval Warm Period was a period of multidecadal climatic variability and resource predictability while the Little Ice Age was characterized by short-term variability and resource unpredictability. Poor preservation of subsistence remains hampered the archaeological study. However, as expected, lithic and chronometric data indicate the site was used residentially and relatively frequently during the Medieval Warm Period, and that use decreased during the Little Ice Age. Medieval use of the site appears to be by Uinta Phase (1800-900 cal B.P.) foragers from the adjacent lowlands, and likely related to regional population pressure, as well as resource accessibility and predictability at High Rise Village. A dramatic decrease in site use predates the Little Ice Age and is likely related to regional population decrease and not LIA conditions at High Rise Village.
Saturno, il re delle notti d’estate
Creators: Marco Galliani
Publisher: name: Media Inaf
Year: 2017

Il pianeta dagli anelli è protagonista del cielo di giugno: sarà in opposizione al Sole il 15 e ci accompagnerà nel suo corso nelle sere e nelle notti di questo mese, che apre le porte alla stagione estiva. I consigli per osservarlo, insieme agli altri oggetti celesti e ai fenomeni visibili in Italia
Entropy production as correlation between system and reservoir
Creators: name: Esposito, Massimiliano
name: Lindenberg, Katja
name: Broeck, Christian Van den
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We derive an exact (classical and quantum) expression for the entropy production of a finite system placed in contact with one or several finite reservoirs each of which is initially described by a canonical equilibrium distribution. Whereas the total entropy of system plus reservoirs is conserved, we show that the system entropy production is always positive and is a direct measure of the system-reservoir correlations and/or entanglements. Using an exactly solvable quantum model, we illustrate our novel interpretation of the Second Law in a microscopically reversible finite-size setting, with strong coupling between system and reservoirs. With this model, we also explicitly show the approach of our exact formulation to the standard description of irreversibility in the limit of a large reservoir.
description: 1 figure, 4 pages
Stella in transito su galassia alle spalle
Creators: Stefano Parisini
Publisher: name: Media Inaf
Year: 2017

L’hanno apostrofata come parassita, una galassia distante fotografata da Hubble mentre inizia a essere oscurata dal passaggio di una stella simile al giovane Sole. In realtà, la sua fortuita presenza permetterà di svelare in controluce le caratteristiche del disco circumstellare di detriti attorno alla stella, simile a una fascia asteroidale del Sistema solare
Ultra-fast quenching of binary colloidal suspensions in an external magnetic field
Creators: name: Assoud, Lahcen
name: Ebert, Florian
name: Keim, Peter
name: Messina, René
name: Maret, Georg
name: Löwen, Hartmut
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An ultra-fast quench is applied to binary mixtures of superparamagnetic colloidal particles confined at a two-dimensional water-air interface by a sudden increase of an external magnetic field. This quench realizes a virtually instantaneous cooling which is impossible in molecular systems. Using real-space experiments, the relaxation behavior after the quench is explored. Local crystallites with triangular and square symmetry are formed on different time scales and the correlation peak amplitude of the small particles evolves nonmonotonically in time in agreement with Brownian dynamics computer simulations.
description: 4 pages, 4 figures
title: Studies on nitrogen and silicon deficiency in microalgal lipid production
Creators: name: Adams, Curtis
Publisher: name: Utah State University
Year: 2013

description: Microalgae are a rich, largely untapped source of lipids. Algae are underutilized, in part, because lipid formation generally is stimulated by stress, such as nutrient deficiency. Nutrient deficiencies reduce growth, resulting in a tradeoff between elevated cellular lipids and abundant cell division. This tradeoff is not well understood. We also have a poor understanding of the physiological drivers for this lipid formation. Here we report on three sets of research: 1) Assessment of species differences in growth and lipid content tradeoffs with high and low level nitrogen deficiency; 2) Investigation of physiological drivers of lipid formation, by mass balance accounting of cellular nitrogen with progressing deficiency; 3) Examination of the effects of sodium chloride and silicon on lipid production in a marine diatom. 1) Nitrogen deficiency typically had disproportionate effects on growth and lipid content, with profound differences among species. Optimally balancing the tradeoff required a wide range in the rate of nitrogen supply to species. Some species grew first and then accumulated lipids, while other species grew and accumulated lipids concurrently--a characteristic that increased lipid productivity. High lipid content generally resulted from a response to minimal stress. 2) Commonalities among species in cellular nitrogen at the initiation of lipid accumulation provided insight into the physiological drivers for lipid accumulation in nitrogen deficient algae. Total nitrogen uptake and retention differed widely among species, but the ratio of minimum retained nitrogen to nitrogen at the initiation of lipid accumulation was consistent among species at 0.5 ± 0.04. This suggests that lipid accumulation was signaled by a common magnitude of nitrogen deficiency. Among the cellular pools of nitrogen at the initiation of lipid accumulation, the concentration of RNA and the protein to RNA ratio were most similar among species with averages of 3.2 ± 0.26 g L-1 (8.2% variation) and 16 ± 1.5 (9.2% variation), respectively. This implicates critical levels of these parameters as potential signals initiating the accumulation of lipids. 3) In a marine diatom, low levels of either sodium chloride or silicon resulted in at least 50% increases in lipid content. The synergy of simultaneous, moderate sodium chloride and silicon stress resulted in lipid content up to 73%. There was a strong sodium chloride/silicon interaction in total and ash-free dry mass densities that arose because low sodium chloride was inhibitory to growth, but the inhibition was overcome with excessive silicon supply. This suggests that low sodium chloride may have affected metabolism of silicon.
Fritz Plasser/Franz Sommer (2018): Wahlen im Schatten der Flüchtlingskrise. Parteien, Wähler und Koalitionen im Umbruch
Creators: name: Wassermann, Heinz P.
Publisher: name: Österreichische Zeitschrift für Politikwissenschaft
Year: 2019

description: n/a
description: Österreichische Zeitschrift für Politikwissenschaft, Bd. 48 Nr. 3 (2019): Offenes Heft
title: Diet-induced obesity decreases liver iron stores in mice fed iron deficient, adequate, or excessive diets
Creators: name: Healy, Brett J.
Publisher: name: Utah State University
Year: 2013

description: Epidemiological and observational evidence suggests that obesity is related to poor Fe status.  To determine interactions between obesity, dietary Fe intake and Fe status; male, weanling C57BL/6J mice were fed either high fat diets to induce obesity or a standard diet for 16 weeks.  Fe concentrations of both the high fat or control diet (4.5 vs 3.8 kcal/g) were set at: 5, 50 or 500 mg Fe/kg diet.  Mice fed the high fat diets had significantly higher percentage body fat (17.9%) compared to mice fed control diets (5.3%, P
A New Phase Transition for Local Delays in MANETs
Creators: name: Baccelli, François
name: Blaszczyszyn, Bartek
Publisher: name: arXiv
Year: 2010
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Probability (math.PR)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider Mobile Ad-hoc Network (MANET) with transmitters located according to a Poisson point in the Euclidean plane, slotted Aloha Medium Access (MAC) protocol and the so-called outage scenario, where a successful transmission requires a Signal-to-Interference-and-Noise (SINR) larger than some threshold. We analyze the local delays in such a network, namely the number of times slots required for nodes to transmit a packet to their prescribed next-hop receivers. The analysis depends very much on the receiver scenario and on the variability of the fading. In most cases, each node has finite-mean geometric random delay and thus a positive next hop throughput. However, the spatial (or large population) averaging of these individual finite mean-delays leads to infinite values in several practical cases, including the Rayleigh fading and positive thermal noise case. In some cases it exhibits an interesting phase transition phenomenon where the spatial average is finite when certain model parameters are below a threshold and infinite above. We call this phenomenon, contention phase transition. We argue that the spatial average of the mean local delays is infinite primarily because of the outage logic, where one transmits full packets at time slots when the receiver is covered at the required SINR and where one wastes all the other time slots. This results in the "RESTART" mechanism, which in turn explains why we have infinite spatial average. Adaptive coding offers a nice way of breaking the outage/RESTART logic. We show examples where the average delays are finite in the adaptive coding case, whereas they are infinite in the outage case.
description: accepted for IEEE Infocom 2010
title: Measurements of the Temperature Dependence of Radiation Induced Conductivity in Polymeric Dielectrics
Creators: name: Gillespie, Jodie Corbridge
Publisher: name: Utah State University
Year: 2013

description: This study measures Radiation Induced Conductivity (RIC) in five insulating polymeric materials over temperatures ranging from ~110 K to ~350 K: polyimide (PI or Kapton HNTM and Kapton ETM), polytetraflouroethylene (PTFE or TeflonTM), ethylene-tetraflouroethylene (ETFE or TefzelTM), and Low Density Polyethylene (LDPE). RIC occurs when incident ionizing radiation deposits energy and excites electrons into the conduction band of insulators. Conductivity was measured when a voltage was applied across vacuum-baked, thin film polymer samples in a parallel plate geometry. RIC was calculated as the difference in sample conductivity under no incident radiation and under an incident ~4 MeV electron beam at low incident dose rates of 0.01 rad/sec to 10 rad/sec. The steady-state RIC was found to agree well with the standard power law relation, σRIC(D) = kRIC(T) DÄ(T) between conductivity, óRIC and adsorbed dose rate, D. Both the proportionality constant, kRIC, and the power, Ä, were found to be temperature-dependent above ~250 K, with behavior consistent with photoconductivity models developed for localized trap states in disordered semiconductors. Below ~250 K, kRIC and Ä exhibited little change in any of the materials.
In otto sulle tracce del maser al metanolo
Creators: Paolo Soletta
Publisher: name: Media Inaf
Year: 2017

Grazie a una serie di osservazioni congiunte sulla protostella Cepheus A Hw2, il Sardinia Radio Telescope entra a pieno titolo nella European Vlbi Network, la rete europea di radiotelescopi in grado di osservare il cielo come un’unica grande parabola. I risultati in uscita su Astronomy & Astrophysics
Un istante prima di Ligo, Agile ha visto qualcosa
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2017

In concomitanza con l’onda gravitazionale del 4 gennaio scorso, circa mezzo secondo prima, il piccolo satellite italiano ha registrato un segnale debole ma interessante. «Potrebbe essere associato all'evento Gw170104, e la conferma potrebbe venire dalla rivelazione combinata di più satelliti», dice Marco Tavani a Media Inaf
title: Ð¤Ð¸Ð»Ð¾ÑÐ¾ÑÐ¸Ñ
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ Ð´Ð»Ñ Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½ÑÑ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð¸Ð· ÑÑÑÐ°Ð½ Ð¡ÐÐ
titleType: Subtitle
Creators: name: Ð¢Ð¸Ð¼ÐµÑÐ¼Ð°Ð½Ð¸Ñ, ÐÐ»ÐµÐ½Ð°
Publisher: name: ÐÐ·Ð´-Ð²Ð¾ ÐÐ¾Ð»Ð¸ÑÐµÑÐ½. ÑÐ½-ÑÐ°
Year: 2015
Subjects: ÑÐ¸Ð»Ð¾ÑÐ¾ÑÐ¸Ñ
ÑÑÐµÐ±Ð½Ð¸ÐºÐ¸ Ð¸ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ Ð´Ð»Ñ Ð²ÑÐ·Ð¾Ð²

description: ÐÑÐµÐ´Ð»Ð°Ð³Ð°ÐµÐ¼Ð¾Ðµ Ð²Ð½Ð¸Ð¼Ð°Ð½Ð¸Ñ Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½ÑÑ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÐµÑ ÑÐ¾Ð±Ð¾Ð¹ Ð¾ÑÐ¾Ð±ÑÑ ÑÐ¾ÑÐ¼Ñ Ð¿ÐµÐ´Ð°Ð³Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸ Ð°Ð´Ð°Ð¿ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð»Ð¸ÑÐµÑÐ°ÑÑÑÑ, Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð½Ð¾Ð¹ Ð´Ð»Ñ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÐ°Ð¼Ð¾ÑÑÐ¾ÑÑÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÑÐ°ÑÐ¸ÑÑÑ Ð¸ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸Ð½ÑÐµÑÐµÑÐ° Ðº Ð¸Ð·ÑÑÐ°ÐµÐ¼Ð¾Ð¼Ñ Ð¿ÑÐµÐ´Ð¼ÐµÑÑ. Ð¡Ð¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ Ð²ÐºÐ»ÑÑÐ°ÐµÑ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ñ, Ð²Ð¾Ð¿ÑÐ¾ÑÑ Ð´Ð»Ñ Ð¿ÑÐ¾Ð²ÐµÑÐºÐ¸ Ð·Ð½Ð°Ð½Ð¸Ð¹, Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ð½ÑÐµ Ð²Ð¾Ð¿ÑÐ¾ÑÑ ÐºÐ°Ðº Ð¾ÑÐ½Ð¾Ð²Ñ Ð´Ð»Ñ Ð´Ð¸ÑÐºÑÑÑÐ¸Ð¹, Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼ÑÐ¹ Ð¿Ð¾Ð½ÑÑÐ¸Ð¹Ð½Ð¾-ÐºÐ°ÑÐµÐ³Ð¾ÑÐ¸Ð°Ð»ÑÐ½ÑÐ¹ Ð°Ð¿Ð¿Ð°ÑÐ°Ñ, Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð¸ Ð´Ð¾Ð¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÑ Ð»Ð¸ÑÐµÑÐ°ÑÑÑÑ. ÐÐ¾ÑÐ¾Ð±Ð¸Ðµ Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÑÐºÐ¾Ð³Ð¾Ð²Ð¾ÑÑÑÐ¸Ñ Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½ÑÑ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² - Ð³ÑÐ°Ð¶Ð´Ð°Ð½ ÑÑÑÐ°Ð½ Ð¡ÐÐ.
Quarkonium dissociation in a PNJL quark plasma
Creators: name: Jankowski, Jakub
name: Blaschke, David
name: Grigorian, Hovik
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the Mott effect for heavy quarkonia due to Debye screening of the heavy quark potential in a plasma of massless quarks and antiquarks. The influence of residual color correlation is investigated by coupling the light quark sector to a temporal gauge field driven by the Polyakov loop potential. This leads to an increase of the Mott dissociation temperatures for quarkonia states which stabilizes in particular the excited states, but has marginal effect on the ground states. The temperature dependence of binding energies suggests that the dissciation of the charmonium (bottomonium) ground state by thermal activation sets in at temperatures of 200 MeV (250 MeV).
description: 6 pages, 1 figure, contribution to EMMI Workshop and XXVI Max-Born Symposium "Three Days of Strong Interactions", Wroclaw, July 9-11, 2009
title: Maintaining Spanish in an English-Speaking World
Creators: name: Juhasz, Audrey Constance
Publisher: name: Utah State University
Year: 2013

description: As the Latino portion of the United States population continues to grow each year, more and more children in the United States leave their Spanish-speaking homes and enter English immersion schools. Throughout their lives, these children are likely to shift language preferences from their home language, to the language of the community. However, maintaining development in their first language would be a benefit to them in multiple ways. Identifying factors within bilingual homes that influence English and Spanish language development in preschool-aged children will help researchers and practitioners encourage families to cultivate the optimal learning environment. This study endeavored to identify some specific social, linguistic, and literacy-related factors within the home that predict Spanish and English language development in 4-year-old children from low-income, predominantly Spanish-speaking families. Extant data from the Bilingual Early Language and Literacy Support Project (BELLS) were analyzed. Data were collected in participants' homes using various measures of the home and family environment. Results indicated children may begin to repress their first language in order to focus on learning a second language as early as 48 months. Maternal use of unique words, in Spanish, was a strong predictor of children's English expressive vocabulary, indicating that continuing to provide a rich language environment in the home language facilitates English language development. Furthermore, current measures of literacy and learning environments may be missing important behaviors present in Latino families that are distinctly different from behaviors in Caucasian families, thus making such measures inapt to predict language-related outcomes in Latino homes.
Additional file 3: of Protein recoding by ADAR1-mediated RNA editing is not essential for normal development and homeostasis
Creators: name: Heraud-Farlow, Jacki
name: Chalk, Alistair
name: Linder, Sandra
name: Li, Qin
name: Taylor, Scott
name: White, Joshua
name: Pang, Lokman
name: Liddicoat, Brian
name: Gupte, Ankita
name: Li, Jin
name: Walkley, Carl
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Dataset S1 Full histopathology report (related to Fig.Â 4), Figure S1 (related to Fig.Â 4) 12-week-old female mouse bone parameters (full legend with figure). Figure S2 (related to Fig.Â 7) Spleen and thymus data from R26-CreER Adar1 fl/fl Ifih1 -/- and R26-CreER Adar1 fl/E861A Ifih1 -/- and control animals (full legend with figure). Table S2 qPCR primers used in this study. (PDF 882 kb)
Cosmological Constraints on DGP Braneworld Gravity with Brane Tension
Creators: name: Lombriser, Lucas
name: Hu, Wayne
name: Fang, Wenjuan
name: Seljak, Uros
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We perform a Markov Chain Monte Carlo analysis of the self-accelerating and normal branch of Dvali-Gabadadze-Porrati braneworld gravity. By adopting a parameterized post-Friedmann description of gravity, we utilize all of the cosmic microwave background data, including the largest scales, and its correlation with galaxies in addition to the geometrical constraints from supernovae distances and the Hubble constant. We find that on both branches brane tension or a cosmological constant is required at high significance with no evidence for the unique Dvali-Gabadadze-Porrati modifications. The cross-over scale must therefore be substantially greater than the Hubble scale H_0 r_c > 3 and 3.5 at the 95% CL with and without uncertainties from spatial curvature. With spatial curvature, the limit from the normal branch is substantially assisted by the galaxy cross-correlation which highlights its importance in constraining infrared modifications to gravity.
description: 11 pages, 5 figures, 9 tables; replaced Hubble constant from HST Key Project with measurement from SHOES
THE MODEL FOR DEVELOPING CREATIVE AND CRITICAL THINKING IN FUTURE PRIMARY SCHOOL TEACHERS.
Creators: name: Jumayeva, Mukhlisa
Publisher: name: Zenodo
Year: 2025

description:  This article presents a model for developing creative and critical thinking in future primary school teachers. The main goal of the model is to foster independent thinking, generate innovative ideas, and develop critical approaches to pedagogical situations. The model provides methods that allow for the simultaneous development of both creative and critical thinking in the educational process. Creative and critical thinking helps teachers improve their teaching methods and enhance their effectiveness. The model creates opportunities for applying advanced pedagogical methods in teaching.
title: Weyl Gravity as a Gauge Theory
Creators: name: Trujillo, Juan Teancum
Publisher: name: Utah State University
Year: 2013

description: In 1920, Rudolf Bach proposed an action based on the square of the Weyl tensor or CabcdCabcd where the Weyl tensor is an invariant under a scaling of the metric. A variation of the metric leads to the field equation known as the Bach equation. In this dissertation, the same action is analyzed, but as a conformal gauge theory. It is shown that this action is a result of a particular gauging of this group. By treating it as a gauge theory, it is natural to vary all of the gauge fields independently, rather than performing the usual fourth-order metric variation only. We show that solutions of the resulting vacuum field equations are all solutions to the vacuum Einstein equation, up to a conformal factor—a result consistent with local scale freedom. We also show how solutions for the gauge fields imply there is no gravitational self energy.
Ductility and chemical reactions at the interface between nickel and magnesium oxide single crystals
Creators: name: Hasselman, Didericus Petrus Hermannus
Publisher: name: University of British Columbia
Year: 2011

description: An investigation was conducted on the interaction between nickel metal and single crystals of magnesium oxide. The nickel was cleaned with purified hydrogen gas at 800°C and melted under vacuum (5 x 10⁻⁵ mm. Hg) in contact with the magnesium oxide. The interface was examined metallographic-ally. The formation of compounds at the interface was examined by X-ray diffraction techniques. The magnesium oxide was plastically deformed by thermal stresses which occurred on cooling. Slip occurred on four slip planes only. The slip sources were present in the surface at a depth not exceeding ten microns. They were in the form of dislocation half-loops introduced in the surface during cleavage. The introduction of these half-loops was due to the formation of cleavage steps. Rows of dislocation half-loops were due to the multiplication of a half-loop on a slip plane oriented in the direction of propagation of the cleavage crack. Bond formation consisted of the formation of a magnesium-nickel compound (Mg₂Ni). The bond strength exceeded the stress for brittle fracture of magnesium oxide. Attack of the magnesium oxide occurred preferentially at the perimeter of the interface. This led to groove-formation, which resulted in a large hysteresis of wetting. The diffusion of nickel into magnesium oxide seemed to take place mainly by diffusion along dislocations.
Tutti pazzi per le onde gravitazionali
Creators: Silvia Piranomonte
Publisher: name: Media Inaf
Year: 2017

Con la scoperta delle onde gravitazionali si apre una nuova branca dell’astronomia, l’astronomia gravitazionale. Le onde gravitazionali, al contrario dei fotoni, viaggiano indisturbate nello spazio tempo, attraversando tutto ciò che incontrano: messaggere perfette, dunque, dal Big Bang fino a noi
A new yield criterion for the concrete materials
Creators: name: François, Marc Louis Maurice
Publisher: name: arXiv
Year: 2010
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The proposed yield criterion depends upon two material constants and is proven to be smooth and convex under a simple condition. These properties induce a mathematical robustness that allows a further use in a damage mechanics model. The analytical gradient and hessian are given. The obtained yield surface is relevant to Kupfer's biaxial testings on concrete. The identification procedure, with respect to the classical uniaxial tension and compression testings, is detailed.
title: Effects of Integrating Mathematical Concepts Into An Animal Science Curriculum
Creators: name: Clark, Andrea Rae
Publisher: name: Utah State University
Year: 2013

description: Nationwide, mathematical scores have been a topic of concern among elementary and secondary educators for many years. Decreasing math skills are also trickling into post-secondary education, requiring universities to provide additional remedial math instruction in colleges and universities. Studies have been conducted to discover the most effective pedagogical methods of teaching math. Teaching contextualized math has been found to be effective and includes providing a direct application to real-life scenarios rather than teaching linear equations and algebraic principles outside of their application. A study was conducted measuring the effects of integrating mathematical skills in an animal science curriculum. Eight Utah schools participated in the research study. Students received a pretest measuring their existing mathematical skills and self-efficacy in math. All students were taught a unit of instruction about animal nutrition and feeding. The control group received a typical nutrition unit and the treatment group received the same unit of instruction with the addition of mathematical skill integration. Students were taught to use the Pearson Square to calculate feed rations as well as solve basic equations to balance rations. Following the unit of instruction, students completed a posttest survey, which included a math attitudinal scale, posttreatment self-efficacy scale, and posttreatment math skills quiz. There was no statistically significant difference in math self-efficacy or math skills between the control group receiving a typical nutrition unit and the treatment group which received the math-enhanced unit of instruction. Correlational statistics were gathered and showed a strong positive relationship between students' self-efficacy and math skills. Gender, grade level, highest completed math class, and grade received in highest-level math class were not found to be statistically significant predictions of math skills. Highest level of math completed and overall grade point average were statistically significant factors in predicting math self-efficacy.
Dynamical screening of an endohedral atom
Creators: name: Lo, S
name: Korol, A V
name: Solov'yov, A V
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: The present work is a generalisation of the dynamical screening factor presented in [1] to consider an atom located at an arbitrary position within the fullerene. A more elaborated investigation into the case where the atom is located at the centre is performed and compared with quantum mechanical calculations for dynamical screening factor of Ar@C$_{60}$ [2] and Mg@C$_{60}$ [3]. The $π$ and $σ$ plasmons of the fullerene are accounted for in a modified screening factor to improve correspondence with the quantum calculations. The spatial dependence of the screening factor was explored with Ar@C$_{60}$ and Ar@C$_{240}$ and found to depend significantly on the radial distance of the atom from the centre of the fullerene. A spatial averaging of the screening factor is presented.
description: 18 pages, 7 figures
Due nane brune per Hubble
Creators: Marco Galliani
Publisher: name: Media Inaf
Year: 2017

Grazie a una serie di accurate osservazioni con il telescopio spaziale più famoso al mondo, un team di ricercatori guidato da Luigi Bedin dell’Inaf ha caratterizzato con grande accuratezza i moti di un peculiare sistema binario, che si trova a soli sei anni luce da noi
title: ÐÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð°Ñ Ð¿ÑÐ°Ð²Ð¾Ð²Ð°Ñ ÑÑÐµÐ´Ð° Ð±Ð¸Ð·Ð½ÐµÑÐ°
Creators: name: ÐÐ¾ÑÐ¸Ð½ÐµÐ², Ð®ÑÐ¸Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: Ð¿ÑÐµÐ´Ð¿ÑÐ¸Ð½Ð¸Ð¼Ð°ÑÐµÐ»ÑÑÑÐ²Ð¾
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description: Ð£ÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ Â«ÐÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð°Ñ Ð¿ÑÐ°Ð²Ð¾Ð²Ð°Ñ ÑÑÐµÐ´Ð° Ð±Ð¸Ð·Ð½ÐµÑÐ°Â» ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÐµÑ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð¼Ñ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð¾Ð¼Ñ ÑÑÐ°Ð½Ð´Ð°ÑÑÑ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ñ Â«ÐÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð°Ñ Ð¿ÑÐ°Ð²Ð¾Ð²Ð°Ñ ÑÑÐµÐ´Ð° Ð±Ð¸Ð·Ð½ÐµÑÐ°Â» Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ 38.03.02 - ÐÐµÐ½ÐµÐ´Ð¶Ð¼ÐµÐ½Ñ. ÐÐ·Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ñ Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð¾Ð³Ð¾ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿ÑÐ°Ð²Ð°, Ð²Ð¾Ð¿ÑÐ¾ÑÑ Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð¾Ð³Ð¾ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ð¹ Ð² ÑÑÐµÑÐ°Ñ ÑÐ¾ÑÐ³Ð¾Ð²Ð»Ð¸, ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð², Ð½Ð°Ð»Ð¾Ð³Ð¾Ð², Ð¸Ð½ÑÐµÐ»Ð»ÐµÐºÑÑÐ°Ð»ÑÐ½Ð¾Ð¹ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½Ð¾ÑÑÐ¸, ÑÑÑÐ´Ð¾Ð²ÑÑ Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ð¹. ÐÐ¾ÑÐ¾Ð±Ð¸Ðµ Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ Ð¼Ð°Ð³Ð¸ÑÑÑÐ¾Ð² Ð¿Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ 38.03.02 - Â«ÐÐµÐ½ÐµÐ´Ð¶Ð¼ÐµÐ½ÑÂ» ÐÐ½ÑÑÐ¸ÑÑÑÐ° Ð¿ÑÐ¾Ð¼ÑÑÐ»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¼ÐµÐ½ÐµÐ´Ð¶Ð¼ÐµÐ½ÑÐ°, ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ¸ Ð¸ ÑÐ¾ÑÐ³Ð¾Ð²Ð»Ð¸. ÐÐ¾Ð³ÑÑ Ð±ÑÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ñ ÑÐ°ÐºÐ¶Ðµ ÑÐ»ÑÑÐ°ÑÐµÐ»ÑÐ¼Ð¸ Ð² ÑÐ¸ÑÑÐµÐ¼Ðµ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ Ð¸ Ð¼Ð°Ð³Ð¸ÑÑÑÐ°Ð¼Ð¸ Ð´ÑÑÐ³Ð¸Ñ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¹.