cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
IRRIGATION SCHEDULING BASED ON SOIL MOISTURE FOR MAIZE CROPS IN SEMI-ARID ENVIRONMENT, ARBA MINCH
Creators: name: FIKRU WORKU NERI
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Irrigation water is scarce in semiarid environment and need to be used judiciously. Minimizing
water input in crop fields such as maize will help in saving water which would increase the
water productivity. Several approaches are employed to reduce irrigation water input in
agricultural areas. In this particular study, soil moisture based water application has been
employed to study the effect of deficit irrigation application in Arba Minch area. The study
was particularly conducted on Arba Minch University demonstration farm. The aim of this
study is to assess the role of different water applications and the responses of maize yield, under
the semi-arid environment like Arba Minch by planting two commonly grown varieties of
maize (BH-140 and BH-540). Both field and laboratory experiments were carried out to acquire
important data for analysis in this study. For the analysis, AquaCrop model was employed. To
carry out this, irrigation application based on current amount of soil moisture in the crop root
zone with 100, 75, 50, and 25% of the soil moisture deficit is satisfied for the designed
treatments. The soil moisture deficit is taken as the amount of soil moisture content between
the field capacity and the current soil moisture content. The results of the study showed that
large savings in irrigation can be possible using the soil moisture based approach when
compared to the previous studies. As a result, yields of BH-140 was from 8.93 t/ha to 5.65 t/ha
and for BH-540 from 8.84 t/ha to 5.76 t/ha. These were obtained with the overall water
application for BH-140 from 417.55 mm to 268.39 mm and BH-540 was 417.13 mm to 266.09
mm. Thus, for BH-140, the model showed NSE of 0.737 and RMSE of 0.534. Whereas for
BH-540, the model showed NSE and RMSE of 0.755 and 0.489 respectively. Also, water
productivity based on the total supplied water ranges from 2.717 kg/m
3
 to 1.353 kg/m
for BH140
and
from
2.920

kg/m
3
 to 1.385 kg/m
3
 BH-540. Comparatively, better aboveground dry
biomass was observed for BH-540 in treatment T
5B
. Contrarily, the grain yield was better in
the case of BH-140 maize variety. Therefore, the model can effectively be used for maize
irrigation scheduling in the study area using the values calibrated in this study.
3
Theory of optically forbidden d-d transitions in strongly correlated crystals
Creators: name: Katsnelson, M. I.
name: Lichtenstein, A. I.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A general multiband formulation of linear and non-linear optical response functions for realistic models of correlated crystals is presented. Dipole forbidden d-d optical transitions originate from the vertex functions, which we consider assuming locality of irreducible four-leg vertex. The unified formulation for second- and third-order response functions in terms of the three-leg vertex is suitable for practical calculations in solids. We illustrate the general approach by consideration of intraatomic spin-flip contributions, with the energy of 2J, where J is a Hund exchange, in the simplest two-orbital model.
description: 9 pages, 4 figures, to appear in J. Phys. Cond. Matter
Transitioning from the Reflection-Based Safety Literacy Classroom to the Worksite: The Student Experience
Creators: name: Howick, Jodi
name: Schmaus, David
Publisher: name: Alberta Journal of Educational Research
Year: 2018

description: Reflection-based safety literacy is a form of education that builds bridges between the classroom and the workplace. This paper explores how experiences shared in the classroom create connections between health and safety learning material and its application in personal and professional lives. The exploration of the student experience showed that students transferred course themes to the work environment more effectively when sharing the experience with a colleague and created personal connection to the content through application and reflection between learning sessions. Instructor and student stories demonstrated that a variety of experiences in implementing and interpreting the material resulted in a meaningful context for the student experience. These themes provide insight into the value of reflection and dialogue as tools to enhance health and safety curriculum. La formation à la sécurité basée sur la réflexion est une forme d’éducation qui érige des ponts entre les salles de classe et les milieux de travail. Cet article explore la mesure dans laquelle le partage d’expériences en classe crée des liens entre le matériel pédagogique portant sur la santé et la sécurité d’une part et son application dans la vie personnelle et professionnelle d’autre part. L’étude de l’expérience des étudiants a révélé que ceux-ci transféraient plus efficacement au milieu de travail les savoirs acquis en classe quand ils partageaient l’expérience avec un collègue et qu’ils créaient des liens personnels avec le contenu par l’application et la réflexion entre les cours. Les récits des enseignants et des étudiants ont démontré que diverses expériences portant sur la mise en pratique et l’interprétation du matériel ont créé un contexte significatif pour l’apprentissage. Ces thèmes offrent un aperçu de la valeur de la réflexion et du dialogue en tant qu’outils pour améliorer le programme d’éducation à la santé et à la sécurité. Mots clés : éducation en matière de santé et sécurité au travail; apprentissage basé sur la réflexion; diversité; narration
description: Alberta Journal of Educational Research, Vol. 64 No. 3 (2018): Fall
Chronology protection and the stringy exclusion principle
Creators: name: Raeymaekers, Joris
name: Bleeken, Dieter Van den
name: Vercnocke, Bert
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a family of supersymmetric solutions to AdS supergravity in three dimensions, that correspond to type IIB seven branes wrapped on an internal S3xT4. These solutions are generalizations of the three dimensional Goedel universe and have closed timelike curves. We propose an enhancon-like mechanism for excising the closed timelike curve region by including the effects of additional light degrees of freedom. These take the form of tensionless 7-brane probes, effectively described through the backreaction of a smeared domain wall. The absence of closed timelike curves in the asymptotic AdS3 geometries obtained in this way is shown to be equivalent to a unitarity bound in the dual CFT, known as the stringy exclusion principle.
description: 42 pages, 4 figures
Imaging the circumstellar dust around AGB stars with PolCor
Creators: name: Ramstedt, S.
name: Maercker, M.
name: Olofsson, G.
name: Olofsson, H.
name: Schöier, F. L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The aim of this paper is to investigate how the new imaging Polarimeter and Coronograph (PolCor) at the Nordic Optical Telescope (NOT) can be used in the study of circumstellar structures around AGB stars, with the purpose of preparing for a study of a larger sample. We have observed two types of AGB stars using the PolCor instrument on the NOT: the binary S-type star W Aql and two carbon stars with detached shells, U Cam and DR Ser. The polarized light traces the dust distribution around the stars. From the polarimeter images the polarized intensity, the polarization degree, and the polarization angle over the images are calculated. The location and extent of dust structures are examined in the images. The total dust mass and the dust-to-gas ratios of the detached shells are also calculated. The images of the circumstellar envelope of W Aql show what seems to be an elongated structure in the south-west direction. The detached shells of U Cam and DR Ser are clearly seen in the images. This is the first time the detached shell around DR Ser has been imaged. The radii and widths of the shells are determined and found to be 7.9" and 7.6", and 0.9" and 1.2", for U Cam and DR Ser, respectively. This is consistent with previous results. The dust masses of the feature south-west of W Aql, and in the shells of U Cam and DR Ser are also estimated and found to be 1x10^-6, 5x10^-7, and 2x10^-6 Msun, respectively. W Aql is a known binary and the shape of the circumstellar envelope seems to be in line with what could be expected from binary interaction on these scales. For the shells, the results are in agreement with previous investigations. Ages and formation time-scales are also estimated for the detached shells and found to be consistent with the thermal-pulse-formation scenario.
description: Accepted for publication in A&A
Generalized second law of thermodynamics for a phantom energy accreting BTZ black hole
Creators: name: Jamil, Mubasher
name: Akbar, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we have studied the accretion of phantom energy on a (2+1)-dimensional stationary Banados-Teitelboim-Zanelli (BTZ) black hole. It has already been shown by Babichev et al that for the accretion of phantom energy onto a Schwarzschild black hole, the mass of black hole would decrease and the rate of change of mass would be dependent on the mass of the black hole. However, in the case of (2+1)-dimensional BTZ black hole, the mass evolution due to phantom accretion is independent of the mass of the black hole and is dependent only on the pressure and density of the phantom energy. We also study the generalized second law of thermodynamics at the event horizon and construct a condition that puts an lower bound on the pressure of the phantom energy.
description: 4 pages, accepted for publication in Gen. Relativ. Grav
10 THz Ultrafast Function Generator - generation of rectangular and triangular pulse trains-
Creators: name: Pandiri, Kanaka Raju
name: Katsuragawa, Masayuki
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report the synthesis of arbitrary optical waveforms by manipulating the spectral phases of Raman sidebands with a wide frequency spacing line-by-line. Trains of rectangular and triangular pulses are stably produced at an ultrahigh repetition rate of 10.6229 THz, reminiscent of an ultrafast function generator.
description: 7 Pages, 5 Figures
What is Imagination? Perspectives Held by New Entrants into a B.Ed. Program
Creators: name: Hatt, Blaine E.
name: Graham, Rob
Publisher: name: Alberta Journal of Educational Research
Year: 2018

description: This paper examines the preconceived notions and prior educational experiences that students entering a Bachelor of Education program have regarding imagination. Prior to the commencement of any course work, students (N=138) were asked in a survey to respond to two questions: “What is imagination?” and “Why do you hold that view?” The findings of this research project revealed that many students held traditional perceptions of imagination, such as the formation of a mental image or a concept of that which is not real or present, and the ability to deal creatively with reality. Students reported that their assumptions were based on ideas communicated to them by older siblings, parents, or primary elementary teachers. The evidence of traditional mindsets respecting imagination held by students entering a Bachelor of Education program calls for a deeper exploration of and conversation about the role of imagination in public education, especially in what some perceive to be a technologically advancing learning landscape requiring the essential 21st century competencies of critical thinking and creativity. Keywords: Imagination; Hume-Vygotsky principles: aesthetic/emotion, cognitive/experience, artistic/reality; Imagination Creativity Education (ICE) Cet article porte sur les notions préconçues et les expériences éducatives antérieures relatives à l’imagination d’étudiants au baccalauréat en éducation. Avant de commencer les travaux de leur programme, les étudiants (N=138) ont répondu à deux questions d’un sondage : « Qu’est-ce l’imagination? » et « Pourquoi êtes-vous de cet avis? ». Les résultats de ce projet de recherche révèlent que plusieurs étudiants entretenaient des perceptions traditionnelles de l’imagination, telles que la formation d’une image ou d’un concept mental qui n’est pas réel ou présent, ou bien la capacité d’affronter la réalité de façon créative. Les étudiants ont indiqué que leurs avis étaient basés sur des idées que leur avaient transmises leurs sœurs et leurs frères ainés, leurs parents ou leurs enseignants au primaire. Face à cette mentalité traditionnelle chez des étudiants qui débutent un baccalauréat en éducation, il serait nécessaire d’étudier en profondeur le rôle de l’imagination dans l’éducation publique et d’en discuter, notamment dans le contexte de ce que certains perçoivent comme étant un paysage d’apprentissage caractérisé par des progrès technologiques qui exigent les compétences essentielles du 21e siècle, soit la pensée critique et la créativité. Mots clés : imagination; principes Hume-Vygotsky : esthétique/émotion, cognitif/expérience, artistique/réalité; Imagination Creativity Education (ICE)
description: Alberta Journal of Educational Research, Vol. 64 No. 3 (2018): Fall
EVALUATION OF IRRIGATION EFFICIENCY AND WATER DELIVERY  PERFORMANCE IN GUANTA SMALL SCALE IRRIGATION SCHEME: SOUTH GONDAR, ETHIOPIA
Creators: name: GETACHEW AMERIE WONDMAGEGNE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: This study was initiated to evaluate irrigation efficiency and water delivery performance of
the Guanta irrigation scheme using performance indicators such as conveyance efficiency,
application efficiency and water storage efficiency and water delivery performance
indicators such as adequacy, efficiency, dependability and equity as a tool and to recommend
appropriate measures to improve the scheme. Overall activities in primary data collected
included: field observation, discharge measurement in the canal, determination of moisture
contents of the soil before and after irrigation, determination of soil physical properties and
measurement of depth of water applied to the fields. For field evaluation of irrigation
efficiency of the scheme, using performance indicators three farmers’ fields was selected
from the head, middle and tail-end water users.
According to the results of the study, conveyance efficiency (EC), application efficiency (Ea),
storage efficiency (Es) and overall scheme efficiency (Eo) were determined and their mean
values of overall were found to be 73.56%, 37.56%, 88.04% and 27.63% respectively. The
conveyance loss at the main canal level was between 2.62% (0.0005m
3
/s/100m) to 32.09%
(0.004m
3
/s/100m). At the secondary canal level of the conveyance losses were between
26.59% (0.0011m
3
/s/100m) to 45.15% (0.0028m
3
/s/100m). The reason of this loss is the
sedimentation in the canal, seepage, inadequate management, by the domestic animals
during the time of water drinking, illegal uses of water of the farmer.
 The water delivery performance of the irrigation system in the terms of adequacy (PA),
efficiency (PF), coefficient of variation (PD) and coefficient of variation (PE) was
determined and their average overall values were found to be 0.79, 0.78, 0.25 and 0.19
respectively. This shows that the adequacy and dependability of the system were poor and
fair for equity and efficiency. The poor performances of the system occurred due to
sedimentation of canals, illegal water abstraction, inadequate operation and maintenance
provisions and the weakness in water management.
title: Ð¡Ð¿Ð¾ÑÐ¾Ð±Ñ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ ÑÐ·ÑÐºÐ¾Ð²Ð¾Ð¹ Ð¸Ð³ÑÑ Ð² Ð·Ð°Ð³Ð¾Ð»Ð¾Ð²ÐºÐ°Ñ ÑÑÐ°Ð½ÑÑÐ·ÑÐºÐ¸Ñ Ð³Ð°Ð·ÐµÑÐ½ÑÑ ÑÑÐ°ÑÐµÐ¹
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Ways to create a language game in the headlines of French newspaper articles
Creators: name: ÐÑÐ´Ð¸Ð½Ð¾Ð²Ð°, ÐÐ»ÐµÐ½Ð°
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: 2019
Subjects: ÑÐ·ÑÐºÐ¾Ð²Ð°Ñ Ð¸Ð³ÑÐ°
Ð³Ð°Ð·ÐµÑÐ½ÑÐ¹ Ð·Ð°Ð³Ð¾Ð»Ð¾Ð²Ð¾Ðº
ÑÑÐ°Ð½ÑÑÐ·ÑÐºÐ¸Ð¹ ÑÐ·ÑÐº
ÑÐºÑÐ¿ÑÐµÑÑÐ¸Ð²Ð½Ð¾ÑÑÑ
ÐºÐ°Ð»Ð°Ð¼Ð±ÑÑ
Ð°Ð»Ð»ÑÐ·Ð¸Ñ
Ð¼ÐµÑÐ°ÑÐ¾ÑÐ°
ÐºÐ¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÑÑÐµÐºÑ
language game
newspaper headline
French language
expression
pun
allusion
metaphor
comic effect

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð° Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ð° ÑÐ·ÑÐºÐ¾Ð²Ð¾Ð¹ Ð¸Ð³ÑÑ Ð² Ð·Ð°Ð³Ð¾Ð»Ð¾Ð²ÐºÐ°Ñ ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÑ ÑÑÐ°Ð½ÑÑÐ·ÑÐºÐ¸Ñ Ð³Ð°Ð·ÐµÑ. ÐÐ°Ð½Ñ Ð¾Ð±ÑÐ¸Ðµ Ð¿Ð¾Ð½ÑÑÐ¸Ñ Ð¸ ÐºÐ»Ð°ÑÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ñ Ð¿ÑÐ¸ÐµÐ¼Ð¾Ð² ÑÐ·ÑÐºÐ¾Ð²Ð¾Ð¹ Ð¸Ð³ÑÑ, Ð²Ð·ÑÑÑÑ Ð¸Ð· Ð·Ð°Ð³Ð¾Ð»Ð¾Ð²ÐºÐ¾Ð² Ð²ÐµÐ´ÑÑÐ¸Ñ ÑÑÐ°Ð½ÑÑÐ·ÑÐºÐ¸Ñ ÐµÐ¶ÐµÐ´Ð½ÐµÐ²Ð½ÑÑ Ð³Ð°Ð·ÐµÑ LibÃ©ration, Le Figaro, Le Monde, La Tribune, Le Parisien. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ¿Ð¾ÑÑÐµÐ±Ð»ÐµÐ½Ð¸Ñ ÑÐ·ÑÐºÐ¾Ð²Ð¾Ð¹ Ð¸Ð³ÑÑ Ð² ÑÑÐ°ÑÑÑÑ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½ÑÑ Ð²ÐµÑÑÐ¸Ð¹ Ð³Ð°Ð·ÐµÑ. ÐÐ·ÑÑÐµÐ½Ñ Ð¿ÑÐ¸ÑÐ¸Ð½Ñ Ð¸ Ð¿Ð¾ÑÐ»ÐµÐ´ÑÑÐ²Ð¸Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð¿ÑÐ¸ÐµÐ¼Ð¾Ð² ÑÐ·ÑÐºÐ¾Ð²Ð¾Ð¹ Ð¸Ð³ÑÑ, Ð¸Ñ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð½Ð° ÑÑÐ°Ð½ÑÑÐ·ÑÐºÐ¸Ð¹ ÑÐ·ÑÐº.
description: In the given work the topic of language game in the headlines of modern French newspapers is stated. The general concepts and classification of types of language game taken from leading French-language daily newspapers LibÃ©ration, Le Figaro, Le Monde, La Tribune and Le Parisien, are given. The analysis of the usage of language game in electronic edition of the newspapers is lead. The causes and effects of the usage of language game and its influence on the French language are investigated.
Holography and the sound of criticality
Creators: name: Edalati, Mohammad
name: Jottar, Juan I.
name: Leigh, Robert G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Using gauge/gravity duality techniques, we discuss the sound-channel retarded correlators of vector and tensor conserved currents in a class of $(2+1)$-dimensional strongly-coupled field theories at zero temperature and finite charge density, assumed to be holographically dual to the extremal Reissner-Nordström AdS$_4$ black hole. Using a combination of analytical and numerical methods, we determine the quasinormal mode spectrum at finite momentum for the coupled gravitational and electromagnetic perturbations, and discuss the appropriate choice of gauge-invariant variables (master fields) in order for the black hole quasinormal frequencies to reproduce the field theory spectrum. We discuss the role of the near horizon AdS$_{2}$ geometry in determining the low-frequency behavior of retarded correlators in the boundary theory, and comment on the emergence of criticality in the IR. In addition, we establish the existence of a sound mode at zero temperature and compute the speed of sound and sound attenuation constant numerically, obtaining a result consistent with the expectations from the zero temperature limit of hydrodynamics. The dispersion relation of higher resonances is also investigated.
description: 36 pages, 15 figures, PDFLaTeX; v2, corrected typos and figure captions
Transstaatliche Verfassungsgeschichte suprastaatlicher Organisationen – Erweiterung statt Alternative. Das Beispiel zwischen­staatlicher Beziehungen im Deutschen Bund 1815 bis 1848
Creators: name: Hofmann, Andreas C.
Publisher: name: Zenodo
Year: 2011
Subjects: Deutscher Bund
Interstaatlichkeit
Neuzeit
Restauration und Vormärz
suprastaatliche Organisationen
Suprastaatlichkeit
Transnationale Geschichte
Transstaatlichkeit
Transtaatliche Verfassungsgeschichte
Universitätsgeschichte

description: aussichten Nr. 4 [18.07.2011], geh. an der Univ. München als Vortr. im Jahre 2010

Der 2010 am Historischen Seminar der LMU München gehaltene Vortrag skizziert am Beispiel des Deutschen Bundes den Mehrwert einer transstaatlichen Verfassungsgeschichte bei der Betrachtung suprastaatlicher Organisationen. Er führt aus, wie eine Erweiterung um eine ‘Trans-Sichtweise’ bei gleichzeitiger Trennung mit verwandten Konzepten neue Erkenntnisse zu Tage fördert.
On the Initial Conditions for Star Formation and the IMF
Creators: name: Elmegreen, Bruce G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Density probability distribution functions (PDFs) for turbulent self-gravitating clouds should be convolutions of the local log-normal PDF, which depends on the local average density rho-ave and Mach number M, and the probability distribution functions for rho-ave and M, which depend on the overall cloud structure. When self-gravity drives a cloud to increased central density, the total PDF develops an extended tail. If there is a critical density or column density for star formation, then the fraction of the local mass exceeding this threshold becomes higher near the cloud center. These elements of cloud structure should be in place before significant star formation begins. Then the efficiency is high so that bound clusters form rapidly, and the stellar initial mass function (IMF) has an imprint in the gas before destructive radiation from young stars can erase it. The IMF could arise from a power-law distribution of mass for cloud structure. These structures should form stars down to the thermal Jeans mass MJ at each density in excess of a threshold. The high-density tail of the PDF, combined with additional fragmentation in each star-forming core, extends the IMF into the Brown Dwarf regime. The core fragmentation process is distinct from the cloud structuring process and introduces an independen core fragmentation mass function (CFMF). The CFMF would show up primarily below the IMF peak.
description: 16 pages, 3 figures, ApJ in press April 1, 2011, Issue 730
On the teleost system for enhanced oxygen unloading : time course following catecholamine removal and an investigation into other teleosts
Creators: name: Shu, Jacelyn
Publisher: name: University of British Columbia
Year: 2019

description: Recent studies suggest that teleost fishes may be able to greatly enhance the amount of oxygen (O₂) unloaded to the tissues during a generalized acidosis associated with stress. This mechanism relies on pH-sensitive hemoglobin, a red blood cell (RBC) β-adrenergic Na⁺/H⁺ exchanger (β-NHE) activated by catecholamines to protect RBC pHi, and plasma-accessible carbonic anhydrase (paCA) at the tissues, but not at the gills, to short-circuit the β-NHE, acidify the RBC, and unload O₂ from hemoglobin. This system has been shown to increase tissue PO₂ (∆PO₂) by up to 30 Torr and has been proposed to play an important role both during early teleost evolution, as well as in modern teleost physiology. To date, most studies regarding this system have been conducted in the context of high stress and circulating catecholamines; little is known about this system under low catecholamine levels, such as following stress. In addition, despite being often extrapolated to all teleosts, this system has only been studied within the salmonids. Here, I investigate the time course of β-NHE short-circuiting by paCA in rainbow trout blood following in vitro stimulation by isoproterenol, a synthetic catecholamine, as well as natural catecholamines in vivo to determine how long after adrenergic stimulation this system may remain operational. A significant increase in plasma ∆PO₂ due to β-NHE short-circuiting by paCA was found in rainbow trout blood stimulated in vitro up to one hour after removal of isoproterenol; this was reduced to less than 30 min under natural catecholamines. A significant ∆PO₂ of approximately 5 Torr was determined even 6 h after stimulation, as well as in pharmaceutically blocked blood, suggesting that enhanced O₂ unloading may be operational in resting fish. The system was also investigated in two teleost species distantly related to the salmonids, cobia (Rachycentron canadum) and mahi-mahi (Coryphaena hippurus). In cobia and mahi-mahi, evidence of a RBC β-NHE was found, and it is predicted that cobia may exhibit up to a 61% increase in enhanced O₂ unloading with no change in blood flow through short-circuiting of RBC β-NHE, a value consistent with salmonids. This second phylogenetically distant group provides support that this system may be functional in teleosts in general.
The primordial non-Gaussianity of local type (f_NL) in the WMAP 5-year data: the length distribution of CMB skeleton
Creators: name: Hou, Zhen
name: Banday, A. J.
name: Gorski, Krzysztof M.
name: Elsner, Franz
name: Wandelt, Benjamin D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present skeleton studies of non-Gaussianity in the CMB temperature anisotropy observed in the WMAP5 data. The local skeleton is traced on the 2D sphere by cubic spline interpolation which leads to more accurate estimation of the intersection positions between the skeleton and the secondary pixels than conventional linear interpolation. We demonstrate that the skeleton-based estimator of non-Gaussianity of the local type (f_NL) - the departure of the length distribution from the corresponding Gaussian expectation - yields an unbiased and sufficiently converged f_NL-likelihood. We analyse the skeleton statistics in the WMAP5 combined V- and W-band data outside the Galactic base-mask determined from the KQ75 sky-coverage. The results are consistent with Gaussian simulations of the the best-fitting cosmological model, but deviate from the previous results determined using the WMAP1 data. We show that it is unlikely that the improved skeleton tracing method, the omission of Q-band data, the modification of the foreground-template fitting method or the absence of 6 extended regions in the new mask contribute to such a deviation. However, the application of the Kp0 base-mask in data processing does improve the consistency with the WMAP1 results. The f_NL-likelihoods of the data are estimated at 9 different smoothing levels. It is unexpected that the best-fit values show positive correlation with the smoothing scales. Further investigation argues against a point-source or goodness-of-fit explanation but finds that about 30% of either Gaussian or f_NL samples having better goodness-of-fit than the WMAP5 show a similar correlation. We present the estimate f_NL=47.3+/-34.9 (1sigma error) determined from the first four smoothing angles and f_NL=76.8+/-43.1 for the combination of all nine. The former result may be overestimated at the 0.21sigma-level because of point sources.
description: 17 pages, 14 figures, 5 tables, accepted for publication in MNRAS
title: ÐÐ±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ðµ Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑÐ¸ ÑÐ¸ÑÑÐµÐ¼ ÑÐ¼Ð½Ð¾Ð³Ð¾ Ð´Ð¾Ð¼Ð° Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð½Ð¸Ð·ÐºÐ¾ÑÐµÑÑÑÑÐ½Ð¾Ð¹ ÐºÑÐ¸Ð¿ÑÐ¾Ð³ÑÐ°ÑÐ¸Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Ensuring the safety of the systems of the smart home with using low-resource cryptography
Creators: name: Ð¦Ð°ÑÑÐºÐ¾Ð², ÐÐ³Ð¾Ñ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: 2019
Subjects: IT-ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸
Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑÑ
ÑÐ¼Ð½ÑÐ¹ Ð´Ð¾Ð¼
Ð½Ð¸Ð·ÐºÐ¾ÑÐµÑÑÑÑÐ½Ð°Ñ ÐºÑÐ¸Ð¿ÑÐ¾Ð³ÑÐ°ÑÐ¸Ñ
Ð¿ÑÐ¾ÑÐ¾ÐºÐ¾Ð» Ð¾Ð±Ð¼ÐµÐ½Ð° Ð´Ð°Ð½Ð½ÑÐ¼Ð¸
IT
information security
smart house
lightweight cryptog-raphy
data exchange protocol

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½ Ð²Ð°ÑÐ¸Ð°Ð½Ñ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾Ð³Ð¾ Ð¾Ð±Ð¼ÐµÐ½Ð° Ð´Ð°Ð½Ð½ÑÐ¼Ð¸ Ð¼ÐµÐ¶Ð´Ñ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð°Ð¼Ð¸ ÑÐµÑÐ¸ ÑÐ¼Ð½Ð¾Ð³Ð¾ Ð´Ð¾Ð¼Ð°. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ðµ ÑÐµÑÐµÐ½Ð¸Ñ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ñ Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾Ð³Ð¾ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð½Ð¸Ð·ÐºÐ¾ÑÐµÑÑÑÑÐ½Ð¾Ð¹ ÐºÑÐ¸Ð¿ÑÐ¾Ð³ÑÐ°ÑÐ¸Ð¸ Ð¸ ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ðµ Ð¿ÑÐ¾ÑÐ¾ÐºÐ¾Ð»Ñ ÑÐ²ÑÐ·Ð¸ Ð² ÑÐµÑÐ¸ ÑÐ¼Ð½Ð¾Ð³Ð¾ Ð´Ð¾Ð¼Ð°. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° ÐºÐ¾Ð½ÐºÑÐµÑÐ½Ð°Ñ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð°Ñ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐ¾ÐºÐ¾Ð»Ð° Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÑÐµÑÐ¸ ÑÐ¼Ð½Ð¾Ð³Ð¾ Ð´Ð¾Ð¼Ð°.
description: In given work, the proposed implementation of secure data exchange between smart home network devices. The existing solutions to the problem of ensuring secure communication using lightweight cryptography and existing communication protocols in the smart home network are considered. Concrete program realization of proposed protocol using the example of a smart home network.
title: ÐÐ¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ ÑÐºÐ¾ÑÐ¾ÑÑÐ½Ð¾Ð³Ð¾ ÑÑÐ´Ð° ÑÐ½ÐµÑÐ³Ð¾Ð½Ð°ÑÑÑÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÑÐ°ÐºÑÐ¾ÑÐ°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Optimization of transmission ratios of the power saturated tractor
Creators: name: ÐÑÐ¸Ð¼Ð¾Ð², Ð­Ð´ÑÐ°ÑÐ´
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: 2019
Subjects: Ð¢ÑÐ°ÐºÑÐ¾ÑÑ
Ð¢ÑÐ°Ð½ÑÐ¿Ð¾ÑÑÐ½Ð¾Ðµ Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ
ÐÐ¾ÑÐ¾Ð±ÐºÐ¸ Ð¿ÐµÑÐµÐ´Ð°Ñ
Ð¿ÐµÑÐµÐ´Ð°ÑÐ¾ÑÐ½Ð¾Ðµ ÑÐ¸ÑÐ»Ð¾
ÑÑÐ¸Ð»Ð¸Ðµ Ð½Ð° ÐºÑÑÐºÐµ
ÑÑÐ³Ð¾Ð²Ð¾-ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ°ÑÑÑÑ
ÐºÐ¸Ð½ÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÑ ÐµÐ¼Ð°

description: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ° ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¾ÑÐ½ÑÑ ÑÐ¸ÑÐµÐ» ÑÐ½ÐµÑÐ³Ð¾Ð½Ð°ÑÑÑÐµÐ½Ð½ÑÑ ÑÐµÐ»ÑÑÐºÐ¾ÑÐ¾Ð·ÑÐ¹ÑÑÐ²ÐµÐ½Ð½ÑÑ ÑÑÐ°ÐºÑÐ¾ÑÐ¾Ð². ÐÐ¾Ð»ÑÑÐµÐ½Ñ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ Ð°Ð³ÑÐ¾ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐºÐ¾ÑÐ¾ÑÑÐµÐ¹ Ð¸ ÐºÑÑÐºÐ¾Ð²ÑÑ ÑÑÐ¸Ð»Ð¸Ð¹ ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð½Ð°Ð²ÐµÑÐ½Ð¾Ð³Ð¾ Ð¸ Ð¿ÑÐ¸ÑÐµÐ¿Ð½Ð¾Ð³Ð¾ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ. ÐÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ ÐºÐ¸Ð½ÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÑÐµÐ¼Ñ Ð¼Ð¾Ð´ÐµÑÐ½Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ Ð´Ð²ÑÑ- Ð¸ ÑÐµÑÑÑÑÑÑÐµÐ¶Ð¸Ð¼Ð½ÑÑ ÐºÐ¾ÑÐ¾Ð±Ð¾Ðº Ð¿ÐµÑÐµÐ´Ð°Ñ. ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¾ ÑÐ¾Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½ÑÑ ÐºÐ¸Ð½ÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÑÐµÐ¼ Ñ ÑÐµÑÐ¸Ð¹Ð½Ð¾Ð¹ ÐºÐ¾ÑÐ¾Ð±ÐºÐ¾Ð¹ Ð¿ÐµÑÐµÐ´Ð°Ñ Ð¿ÑÐ¸ Ð¿Ð¾Ð¼Ð¾ÑÐ¸ ÑÑÐ³Ð¾Ð²Ð¾-ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ°ÑÑÑÑÐ°.
description: The technique of distribution of reduction ratios of power saturated agricultural tractors is developed. Values of agrotechnical speeds and hook efforts of the modern hinged and hook-on equipment are received. Kinematic schemes modernized two - and four-regime gear boxes are offered. Comparison of the developed kinematic schemes to serial gear box by means of traction and economic calculation is executed.
title: ÐÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ»ÐµÐ¹Ð½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÐ°Ð½ÑÐ¸Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
Creators: name: ÐÐ°Ð»ÐµÐ½ÑÐº, 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: 2019
Subjects: Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸
Ð¢Ð¾ÐºÐ¸ ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ
Ð¢ÐµÐ¿Ð»Ð¾ÑÐ»ÐµÐºÑÑÐ¾ÑÐµÐ½ÑÑÐ°Ð»Ð¸
Ð¢ÐµÐ¿Ð»Ð¾Ð²ÑÐµ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÑÐ°Ð½ÑÐ¸Ð¸

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¾Ð±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ¸ÑÑÐµÐ¼Ð° ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´ Ð¢Ð­Ð¦. Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ â Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ»ÐµÐ¹Ð½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ Ð¸ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÐºÐ¸ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´ ÑÐ½ÐµÑÐ³Ð¾Ð±Ð»Ð¾ÐºÐ° Ð¢Ð­Ð¦. Ð Ð°ÑÑÑÐ¸ÑÐ°Ð½Ñ ÑÐ¾ÐºÐ¸ ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ, Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ ÑÐµÐ³Ð¾ Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ Ð²ÑÐ±Ð¾Ñ ÑÑÑÑÐ¾Ð¹ÑÑÐ² Ð ÐÐ, Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÑÑÑÐ°Ð²Ð¾Ðº ÑÑÐ°Ð±Ð°ÑÑÐ²Ð°Ð½Ð¸Ñ Ð¸ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÐ¾Ð² ÑÑÐ²ÑÑÐ²Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸. ÐÐ±Ð»Ð°ÑÑÑ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ: Ð½ÐµÐ¿Ð¾ÑÑÐµÐ´ÑÑÐ²ÐµÐ½Ð½Ð°Ñ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ° Ð·Ð°ÑÐ¸Ñ Ð¸ Ð·Ð°Ð´Ð°Ð½Ð¸Ðµ ÐµÐµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð².
description: In the given work, the object of study is the system of own needs of combined heat and power plant CHPP. The purpose of the work is the design of relay protection and automation of own needs of the CHPP power unit. The short-circuit currents were calculated, on the basis of which the relay protection devices were selected, the values of the operation settings and sensitivity coefficients were obtained. Scope: direct installation of protection and setting its parameters.
High Luminescence in Small Si/SiO2 Nanocrystals: A Theoretical Study
Creators: name: Guerra, Roberto
name: Ossicini, Stefano
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In recent years many experiments have demonstrated the possibility to achieve efficient photoluminescence from Si/SiO2 nanocrystals. While it is widely known that only a minor portions of the nanocrystals in the samples contribute to the observed photoluminescence, the high complexity of the Si/SiO2 interface and the dramatic sensitivity to the fabrication conditions make the identification of the most active structures at the experimental level not a trivial task. Focusing on this aspect we have addressed the problem theoretically, by calculating the radiative recombination rates for different classes of Si-nanocrystals in the diameter range of 0.2-1.5 nm, in order to identify the best conditions for optical emission. We show that the recombination rates of hydrogenated nanocrystals follow the quantum confinement feature in which the nanocrystal diameter is the principal quantity in determining the system response. Interestingly, a completely different behavior emerges from the OH-terminated or SiO2-embedded nanocrystals, where the number of oxygens at the interface seems intimately connected to the recombination rates, resulting the most important quantity for the characterization of the optical yield in such systems. Besides, additional conditions for the achievement of high rates are constituted by a high crystallinity of the nanocrystals and by high confinement energies (small diameters).
Status of R-parity violating SUSY
Creators: name: Choudhury, Arghya
name: Mondal, Arpita
name: Mondal, Subhadeep
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this article, we discuss various phenomenological implications of possible R-parity violating (RPV) supersymmetric scenarios. In this context, the implications of both bilinear and trilinear RPV terms are reviewed from the viewpoint of neutrino physics, anomalous muon magnetic moment, different flavor observables, and collider physics. Apart from discussing the distinctive phenomenological implications of the RPV scenarios, we also survey the updated results from different studies to highlight the present status of the RPV couplings.
description: 43 pages, 20 figures, invited short review on RPV SUSY published in EPJST
Evidence for a circum-nuclear and ionised absorber in the X-ray obscured BroadLine Radio Galaxy 3C 445
Creators: name: Braito, V.
name: Reeves, J. N.
name: Sambruna, R. M.
name: Gofford, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Here we present the results of a Suzaku observation of the Broad Line Radio Galaxy 3C 445. We confirm the results obtained with the previous X-ray observations which unveiled the presence of several soft X-ray emission lines and an overall X-ray emission which strongly resembles a typical Seyfert 2 despite of the optical classification as an unobscured AGN. The broad band spectrum allowed us to measure for the first time the amount of reflection (R~0.9) which together with the relatively strong neutral Fe Kalpha emission line (EW ~ 100 eV) strongly supports a scenario where a Compton-thick mirror is present. The primary X-ray continuum is strongly obscured by an absorber with a column density of NH =2-3 x10^{23} cm^{-2}. Two possible scenarios are proposed for the absorber: a neutral partial covering or a mildly ionised absorber with an ionisation parameter logξ~ 1.0 erg cm s^{-1}. A comparison with the past and more recent X-ray observations of 3C 445 performed with XMM-Newton and Chandra is presented, which provided tentative evidence that the ionised and outflowing absorber varied. We argue that the absorber is probably associated with an equatorial disk-wind located within the parsec scale molecular torus.
description: Accepted by MNRAS; 13 pages, 6 figures, 4 tables
Photoinduced coherent oscillations in the one-dimensional two-orbital Hubbard model
Creators: name: Maeshima, Nobuya
name: Hino, Ken-ichi
name: Yonemitsu, Kenji
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study photoinduced ultrafast coherent oscillations originating from orbital degrees of freedom in the one-dimensional two-orbital Hubbard model. By solving the time-dependent Schrödinger equation for the numerically exact many-electron wave function, we obtain time-dependent optical response functions. The calculated spectra show characteristic coherent oscillations that vary with the frequency of probe light. A simple analysis for the dominant oscillating components clarifies that these photoinduced oscillations are caused by the quantum interference between photogenerated states. The oscillation attributed to the Raman-active orbital excitations (orbitons) clearly appears around the charge-transfer peak.
description: 5 pages, 5 figures
A discrete model of competing species sharing a parasite
Creators: name: de La Parra, Rafael Bravo
name: Sanz, Luis
Publisher: name: arXiv
Year: 2024
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: In this work we develop a discrete model of competing species affected by a common parasite. We analyze the influence of the fast development of the shared disease on the community dynamics. The model is presented under the form of a two time scales discrete system with four variables. Thus, it becomes analytically tractable with the help of the appropriate reduction method. The 2-dimensional reduced system, that has the same the asymptotic behaviour of the full model, is a generalization of the Leslie-Gower competition model. It has the unfrequent property in this kind of models of including multiple equilibrium attractors of mixed type. The analysis of the reduced system shows that parasites can completely alter the outcome of competition depending on the parasite's basic reproductive number R0. In some cases, initial conditions decide among several exclusion or coexistence scenarios.
A large scale coherent magnetic field: interactions with free streaming particles and limits from the CMB
Creators: name: Adamek, Julian
name: Durrer, Ruth
name: Fenu, Elisa
name: Vonlanthen, Marc
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study a homogeneous and nearly-isotropic Universe permeated by a homogeneous magnetic field. Together with an isotropic fluid, the homogeneous magnetic field, which is the primary source of anisotropy, leads to a plane-symmetric Bianchi I model of the Universe. However, when free-streaming relativistic particles are present, they generate an anisotropic pressure which counteracts the one from the magnetic field such that the Universe becomes isotropized. We show that due to this effect, the CMB temperature anisotropy from a homogeneous magnetic field is significantly suppressed if the the neutrino masses are smaller than 0.3 eV.
description: 20 pages, 5 figures (JHEP style) - submitted to JCAP
Seeking alternative pathways : an exploration of school engagement from the perspectives of marginalized youth
Creators: name: Curtis, Nicole L.
Publisher: name: University of British Columbia
Year: 2019

description: Education in British Columbia is intended to be inclusive, however there are students who slip through the cracks. These marginalized students are often found to be struggling with challenges outside of and within school that complicate their educational journeys. According to Self-Determination Theory (SDT), one possible reason for their disengagement is that these students do not perceive their psychological needs for autonomy, belonging and competence as met, which may lead to reduced motivation, and therefore reduced engagement. Informed by feminist, trauma-informed and youth-centered perspectives, this study explored what motivated six marginalized youth to attend school, how they experienced school engagement, and how their experiences of school influenced their school engagement. Six youth enrolled in alternative secondary education programs participated in semi-structured interviews. The data collected from the interviews was analyzed according to SDT, which revealed that in general participants did not perceive schools as meeting their basic psychological needs for autonomy, belonging and competence. Findings from the study indicate that participants were motivated to attend school due to opportunities to develop employment skills, as well as increased access to social networks, resources and supports. The study found that participants found emotional, cognitive and agentic engagement desirable, while behavioural engagement was more often an inauthentic performance idealized in classrooms. Participants’ experiences of school were found to influence their engagement in a variety of ways. This study concluded that in order to increase student motivation to attend, schools might work toward fostering strong student connections, supporting access to employment skills training, reducing barriers to education, and building empathy and understanding for marginalized youth. In order to increase student engagement, schools might focus on increasing student perceptions of autonomy, belonging and competence in their learning environments, as well as work to reduce barriers such as learning challenges and the effects of outside factors on learning. Finally, viewing school engagement as collection of nested, or ecological, social processes that are influenced by factors beyond school walls, as well as by the bidirectional relationships within schools, may help to increase marginalized student engagement.
Internationalization of Higher Education: Considerations for Adult Education
Creators: name: Xiao, Jing
Publisher: name: Alberta Journal of Educational Research
Year: 2018

description: Internationalization has increasingly become an integral part of higher education in the past few decades. This process has posed both opportunities and challenges for adult education in higher education settings. This paper reflects on the implications of internationalization of higher education for adult education. A brief overview of the meanings, purposes, and approaches of internationalization is presented to provide some background to the shifting context of higher education. By looking at the emerging forces shaping the reality of research and practice in higher education, this paper proposes that teaching and learning in universities could dedicate more concerted efforts to sustainable student mobility, internationalizing curricula for intercultural understanding, and enhancing international collaboration. Depuis quelques décennies, l’internationalisation fait de plus en plus partie intégrante de l’enseignement supérieur. Ce processus s’accompagne tant de possibilités intéressantes que de défis pour l’éducation des adultes dans le milieu de l’enseignement supérieur. Cet article porte sur les incidence qu’a, sur l’éducation des adultes, l’internationalisation de l’enseignement supérieur. Un aperçu du sens et des objectifs de l’internationalisation, ainsi que des approches à ce phénomène, offre un contexte à l’évolution des études supérieures. En posant un regard sur les forces émergentes qui façonnent la recherche et la pratique dans l’enseignement supérieur, cet article propose que l’enseignement et l’apprentissage dans les universités soient davantage axés sur la mobilité durable des étudiants, l’internationalisation des programmes d’études de sorte à promouvoir la compréhension interculturelle et l’amélioration de la collaboration internationale. Mots clés : éducation des adultes, internationalisation, enseignement supérieur, enseignement et apprentissage, mobilité des étudiants, collaboration internationale.
description: Alberta Journal of Educational Research, Vol. 64 No. 2 (2018): Summer 2018 (Theme Issue)
Gravity or turbulence? II. Evolving column density PDFs in molecular clouds
Creators: name: Ballesteros-Paredes, Javier
name: Vazquez-Semadeni, Enrique
name: Gazol, Adriana
name: Hartmann, Lee W.
name: Heitsch, Fabian
name: Colin, Pedro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: It has been recently shown that molecular clouds do not exhibit a unique shape for the column density probability distribution function (Npdf). Instead, clouds without star formation seem to possess a lognormal distribution, while clouds with active star formation develope a power-law tail at high column densities. The lognormal behavior of the Npdf has been interpreted in terms of turbulent motions dominating the dynamics of the clouds, while the power-law behavior occurs when the cloud is dominated by gravity. In the present contribution we use thermally bi-stable numerical simulations of cloud formation and evolution to show that, indeed, these two regimes can be understood in terms of the formation and evolution of molecular clouds: a very narrow lognormal regime appears when the cloud is being assembled. However, as the global gravitational contraction occurs, the initial density fluctuations are enhanced, resulting, first, in a wider lognormal Npdf, and later, in a power-law Npdf. We thus suggest that the observed Npdf of molecular clouds are a manifestation of their global gravitationally contracting state. We also show that, contrary to recent suggestions, the exact value of the power-law slope is not unique, as it depends on the projection in which the cloud is being observed.
description: 9 pages, 4 figures. MNRAS, accepted
Size, oxidation, and strain in small Si/SiO2 nanocrystals
Creators: name: Guerra, Roberto
name: Degoli, Elena
name: Ossicini, Stefano
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The structural, electronic and optical properties of Si nanocrystals of different size and shape, passivated with hydrogens, OH groups, or embedded in a SiO2 matrix are studied. The comparison between the embedded and free, suspended nanocrystals shows that the silica matrix produces a strain on the embedded NCs, that contributes to determine the band gap value. By including the strain on the hydroxided nanocrystals we are able to reproduce the electronic and optical properties of the full Si/SiO2 systems. Moreover we found that, while the quantum confinement dominates in the hydrogenated nanocrystals of all sizes, the behaviour of hydroxided and embedded nanocrystals strongly depends on the interface oxidation degree, in particular for diameters below 2 nm. Here, the proportion of NC atoms at the Si/SiO2 interface becomes relevant, producing surface-related states that may affect the quantum confinement appearing as inner band gap states and then drastically changing the optical response of the system.