cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evaluating the impact of activated carbon on the environmental and engineering properties of cement-stabilized contaminated dredged sediment
Creators: name: Iacobucci, Lauren R.
Publisher: name: No Publisher Supplied
Year: 2019

description: The objective of this study was to evaluate the impact of activated carbon on the engineering properties of Portland cement-stabilized contaminated dredged sediment, while investigating its potential to immobilize contaminants for beneficial use applications. Historically contaminated sediment was sampled from five locations in the United States and Norway: three locations within New York/New Jersey Harbor in the United States and two locations within Stavanger Harbor in Norway. Triplicate laboratory samples were generated for each of the five sediment types at various mixing ratios for stabilization/solidification (S/S). New York/New Jersey Harbor sediments were mixed with 0, 1, and 3% (by wet weight of sediment) powdered activated carbon (PAC) and 8% Portland cement (PC). Stavanger Harbor sediments were mixed with 0, 1, and 3% (by wet weight of sediment) PAC and 0, 4, 8 and 12% PC. After 28 days of curing, the samples were tested for unconfined compressive strength (UCS). The leaching potential of metals, polycyclic aromatic hydrocarbons (PAHs), and tributyltin was evaluated via the Synthetic Precipitation Leaching Procedure (SPLP). The results of the study indicate that though it may marginally decrease the material’s strength gain, activated carbon has the potential to aid in the effectiveness of sediment S/S techniques for beneficial use by reducing contaminant mobility. Statistically significant (α = 0.05) reductions in strength between 13% and 53% were observed for soft, fine-grained sediments for mixtures of 8% PC with 1% and 3% doses of AC in this study. However, the addition of AC was instrumental in reducing the leaching concentrations of contaminants below standard criteria, in many cases to non-detectable values. It was particularly effective in reducing the leaching potential of PAHs and tributyltin in cases where PC alone was not effective.
Drama as Arts-Based Pedagogy and Research: Media Advertising and Inner-City Youth
Creators: name: Conrad, Diane
Publisher: name: Alberta Journal of Educational Research
Year: 2002

description: This reflective practice case study involved creating and delivering a unit for inner-city high school students that integrated drama and media literacy/production with a focus on advertising. It used socially critical or issues-based drama to examine the relationship between youth and media: to draw out and question and have them question their meanings or understandings of advertising. Interpretation of students' responses to the work and the ad messages they created saw these young people as sophisticated readers of advertisements who made meanings that spoke to their needs, desires, and life experiences. The study used drama in all stages as an arts-based approach to generating, interpreting, and representing research. Significant teaching-learning moments that occurred during the work with students are depicted through a set of scripted vignettes.
description: Alberta Journal of Educational Research, Vol. 48 No. 3 (2002): Fall 2002
title: ÐÐ¸Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ°Ñ ÑÐ¾Ð»Ñ E3-ÑÐ±Ð¸ÐºÐ²Ð¸ÑÐ¸Ð½Ð»Ð¸Ð³Ð°Ð·Ñ Pirh2 Ð² HER2-Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð²Ð½Ð¾Ð¼ ÑÐ°ÐºÐµ Ð¼Ð¾Ð»Ð¾ÑÐ½Ð¾Ð¹ Ð¶ÐµÐ»ÐµÐ·Ñ
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: The biological role of E3-ubiquitin ligase Pirh2 in HER2-positive breast cancer
Creators: name: ÐÑÐ´Ð¾Ð²Ð¸Ñ, ÐÐ½Ð°ÑÑÐ°ÑÐ¸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: 2020
Subjects: ÑÐ°Ðº Ð¼Ð¾Ð»Ð¾ÑÐ½Ð¾Ð¹ Ð¶ÐµÐ»ÐµÐ·Ñ
E3-ÑÐ±Ð¸ÐºÐ²Ð¸ÑÐ¸Ð½Ð»Ð¸Ð³Ð°Ð·Ð° Pirh2
HER2
Ð»ÐµÐºÐ°ÑÑÑÐ²ÐµÐ½Ð½Ð°Ñ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÑ
Ð¸Ð½Ð³Ð¸Ð±Ð¸ÑÐ¾ÑÑ ÑÐ¸ÑÐ¾Ð·Ð¸Ð½ÐºÐ¸Ð½Ð°Ð·
ÑÐ°ÑÐ³ÐµÑÐ½Ð°Ñ ÑÐµÑÐ°Ð¿Ð¸Ñ
breast cancer
E3-ubiquitin ligase Pirh2
drug resistance
tyrosine kinase inhibitors
targeted therapy

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¾Ð»Ð¸ p53-ÑÐ¿ÐµÑÐ¸ÑÐ¸ÑÐ½Ð¾Ð¹ E3-ÑÐ±Ð¸ÐºÐ²Ð¸ÑÐ¸Ð½Ð»Ð¸Ð³Ð°Ð·Ñ Pirh2 Ð² HER2-Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð²Ð½Ð¾Ð¼ Ð¿Ð¾Ð´ÑÐ¸Ð¿Ðµ ÑÐ°ÐºÐ° Ð¼Ð¾Ð»Ð¾ÑÐ½Ð¾Ð¹ Ð¶ÐµÐ»ÐµÐ·Ñ. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð½Ð¾, ÑÑÐ¾ Ð¿Ð¾Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ðµ ÑÐºÑÐ¿ÑÐµÑÑÐ¸Ð¸ Pirh2 Ð°ÑÑÐ¾ÑÐ¸Ð¸ÑÐ¾Ð²Ð°Ð½Ð¾ Ñ Ð½Ð¸Ð·ÐºÐ¾Ð¹ Ð¾Ð±ÑÐµÐ¹ Ð²ÑÐ¶Ð¸Ð²Ð°ÐµÐ¼Ð¾ÑÑÑÑ Ð¿Ð°ÑÐ¸ÐµÐ½ÑÐ¾Ð², Ð° ÑÐ°Ðº Ð¶Ðµ Ñ ÑÐ°Ð·Ð²Ð¸ÑÐ¸ÐµÐ¼ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ ÐºÐ»ÐµÑÐ¾ÑÐ½ÑÑ Ð»Ð¸Ð½Ð¸Ð¹ ÑÐ°ÐºÐ° Ð¼Ð¾Ð»Ð¾ÑÐ½Ð¾Ð¹ Ð¶ÐµÐ»ÐµÐ·Ñ Ðº Ð¸Ð½Ð³Ð¸Ð±Ð¸ÑÐ¾ÑÐ°Ð¼ ÑÐ¸ÑÐ¾Ð·Ð¸Ð½ÐºÐ¸Ð½Ð°Ð· Ð²ÑÐ¾ÑÐ¾Ð³Ð¾ Ð¿Ð¾ÐºÐ¾Ð»ÐµÐ½Ð¸Ñ Ð°ÑÐ°ÑÐ¸Ð½Ð¸Ð±Ñ Ð¸ Ð½ÐµÑÐ°ÑÐ¸Ð½Ð¸Ð±Ñ. Ð¡ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¼ÐµÑÐ¾Ð´Ð° Ð¿Ð¾ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ¸ÑÐ¾ÑÐ»ÑÐ¾ÑÐ¸Ð¼ÐµÑÑÐ¸Ð¸ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¾ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Pirh2 Ð½Ð° ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ ÑÐ°Ð· ÐºÐ»ÐµÑÐ¾ÑÐ½Ð¾Ð³Ð¾ ÑÐ¸ÐºÐ»Ð° - Ð½Ð¸Ð·ÐºÐ¸Ð¹ ÑÑÐ¾Ð²ÐµÐ½Ñ ÑÐºÑÐ¿ÑÐµÑÑÐ¸Ð¸ Pirh2 Ð²ÐµÐ´ÐµÑ Ðº ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ñ Ð¿Ð¾Ð¿ÑÐ»ÑÑÐ¸Ð¸ ÐºÐ»ÐµÑÐ¾Ðº, Ð½Ð°ÑÐ¾Ð´ÑÑÐ¸ÑÑÑ Ð² ÑÐ°Ð·Ðµ G0. ÐÑÐ¾Ð¼Ðµ ÑÐ¾Ð³Ð¾, Pirh2 Ð¿ÑÐ¸Ð½Ð¸Ð¼Ð°ÐµÑ ÑÑÐ°ÑÑÐ¸Ðµ Ð² ÑÑÐ°Ð±Ð¸Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ HER2. ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÐµ Ð½Ð°Ð¼Ð¸ Ð´Ð°Ð½Ð½ÑÐµ ÑÐ²Ð¸Ð´ÐµÑÐµÐ»ÑÑÑÐ²ÑÑÑ Ð¾ ÑÐ¾Ð¼, ÑÑÐ¾ Pirh2 Ð¼Ð¾Ð¶ÐµÑ ÑÐ²Ð»ÑÑÑÑÑ Ð²Ð°Ð¶Ð½ÑÐ¼ Ð¿ÑÐ¾Ð³Ð½Ð¾ÑÑÐ¸ÑÐµÑÐºÐ¸Ð¼ Ð±Ð¸Ð¾Ð¼Ð°ÑÐºÐµÑÐ¾Ð¼ HER2-Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ ÑÐ°ÐºÐ° Ð¼Ð¾Ð»Ð¾ÑÐ½Ð¾Ð¹ Ð¶ÐµÐ»ÐµÐ·Ñ.
description: The given work is devoted to the role of p53-specific E3-ubiquitin ligase Pirh2 in HER2-positive breast cancer. We have shown that suppression of Pirh2 is associated with low overall survival of patients and with the development of resistance of breast cancer cells to tyrosine kinase inhibitors afatinib and neratinib. The effect of Pirh2 on the distribution of cell cycle phases was determined using the flow cytofluorometry method - low expression of Pirh2 leads to an increasing the number of cells in the G0 phase. In addition, Pirh2 was shown to participate in the stabilization of HER2. We suggest that Pirh2 may be an important predictive biomarker of HER2-positive breast cancer.
Defrosting in an Emergent Galileon Cosmology
Creators: name: Levasseur, Laurence Perreault
name: Brandenberger, Robert
name: Davis, Anne-Christine
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the transition from an Emergent Galileon condensate phase of the early universe to a later expanding radiation phase. This "defrosting" or "preheating" transition is a consequence of the excitation of matter fluctuations by the coherent Galileon condensate, in analogy to how preheating in inflationary cosmology occurs via the excitation of matter fluctuations through coupling of matter with the coherent inflaton condensate. We show that the "minimal" coupling of matter (modeled as a massless scalar field) to the Galileon field introduced by Creminelli, Nicolis and Trincherini in order to generate a scale-invariant spectrum of matter fluctuations is sufficient to lead to efficient defrosting, provided that the effects of the non-vanishing expansion rate of the universe are taken into account. If we neglect the effects of expansion, an additional coupling of matter to the Galileon condensate is required. We study the efficiency of the defrosting mechanism in both cases.
description: 18 pages, 2 figures
СЛОВООБРАЗОВАТЕЛЬНЫЕ ОСОБЕННОСТИ ЮРИДИЧЕСКИХ ТЕРМИНОВ В БАШКИРСКОМ И ТУРЕЦКОМ ЯЗЫКАХ
Creators: name: Юмагузин Айдар Гарифович
name: Абдуллина Гульфира Рифовна
Publisher: name: Проблемы востоковедения
Year: 2020
Subjects: терминология
термин
юридические термины
словообразование
словообразовательные особенности
башкирский язык
турецкий язык

description: Анализ проведенного исследования по способам словообразования в турецком и башкирском языках показал, что словарное пополнение языка закона происходит путем использования существующих в языке морфем и конверсионным способом. Авторами были выявлены общие универсальные модели для двух исследуемых языков. Например, суффиксы сэ/-сі (после гласных и звонких согласных основ); -зэ/-зі/ -зи/ -зь (после глухих согласных основ) в турецком языке и —сы/-се в башкирском языке, присоединяясь к основе-глаголу, образуют юридические термины со значением «лицо, характеризуемое выполнением действий». Из способов терминообразования, существующих в турецком и башкирском языках, наибольшее значение имеют способ аффиксации и образование словосочетаний. В башкирском языке также выделяется конверсионный способ образования. В структурном плане термины в башкирском языке имеют больше аббревиатур, чем в турецком языке. В турецком языке можно наблюдать широкое распространение сложных моделей терминов. Богатый набор разнообразных словообразовательных аффиксов турецкого и башкирского языков делает способ аффиксации наиболее гибким при создании эквивалентов иноязычным заимствованиям. Роль других способов, хотя и значительно более скромная, все же является довольно существенной.
THE STUDY OF OPTICAL, ELECTRICAL AND DIELECTRIC  ROPERTIES OF CADMIUM AND ZINC SUBSTITUTED COPPER  FERRITE NANOPARTICLES
Creators: name: GETANEH MULETA
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Nano crystalline ferrites, especially spinel ferrites, evoked greater attention in this decade
because of their technological applications. Properties of nano ferrites could be easily
tailored by the incorporation of suitable divalent, trivalent or tetravalent impurities into
the spinel structure.  In this work, CuFe2O4 and Cu0.85Cd0.1Zn0.05Fe2O4 nanocrystals were
synthesized  using sol-gel route. The effect of Cd2+
  and Zn2+
ions  doping on  thermal,
structural, electrical and  dielectric  properties  of  CuFe2O4  were investigated  using
powdered X-ray diffraction (XRD), thermogravimetric and differential thermal analysis
(TGA-DTA), ultraviolet visible spectroscopy (UV-vis) and  complex  impedance
spectroscopy (CIS).
 Adding of Cd2+
and Zn2+
  ions into the Cu-ferrite samples made a change in structural,
optical, electrical as well as dielectric properties. The average crystallite size was found to
increase from 26.54nm to 26.66nm after doping Cd and Zn ions due to the larger value of
dopants ionic radii. The estimated band gap energy was found to decrease from 3.3 eV to
3.1 eV due to the substitution of Cd and Zn.  Impedance spectra showed a single semi-
circle for both samples which revealed that a predominant conduction takes place through
grain volume only and the contribution of grain  boundary  did  not  appeared in the
measured frequency range. The variation of dielectric constant and ac conductivity for
both samples were studied as a function of frequency in the range 20Hz to 1MHz at room
temperature and the dielectric constant was found to decrease with increase in frequency
and the ac conductivity showed an increasing trend with increase in frequency.
Boundary entropy of supersymmetric Janus solutions
Creators: name: Chiodaroli, Marco
name: Gutperle, Michael
name: Hung, Ling-Yan
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we compute the holographic boundary entropy for half-BPS Janus deformations of the $AdS_3\times S^3\times T^4$ vacuum of type IIB supergravity. Previous work \cite{Chiodaroli:2009yw} has shown that there are two independent deformations of this sort. In one case, the six-dimensional dilaton jumps across the interface, while the other case displays a jump of axion and four-form potential. In case of a jump of the six-dimensional dilaton, it is possible to compare the holographic result with the weak-coupling result for a two-dimensional interface CFT where the radii of the compactified bosons jump across the interface. We find exact agreement between holographic and CFT results. This is to be contrasted with the holographic calculation for the non-supersymmetric Janus solution, which agrees with the CFT result only at the leading order in the jump parameter. We also examine the implications of the holographic calculation in case of a solution with a jump in the axion, which can be associated with a deformation of the CFT by the $Z_2$-orbifold twist operator.
description: 35 pages, pdf-LaTeX, 5 figures, v2: minor changes, typos corrected, reference added
title: ÐÐ°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ ÑÐ°ÑÐ¿ÑÐ¾ÑÑÑÐ°Ð½ÐµÐ½Ð¸Ñ ÑÐ¿Ð¸Ð»ÐµÐ¿ÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐ°Ð·ÑÑÐ´Ð¾Ð²
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: Mathematical model of the spread of epileptic discharges
Creators: name: ÐÐ¾Ð·ÐµÐ»ÐµÑÐºÐ°Ñ, ÐÐ°ÑÐ³Ð°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: ÑÐ¿Ð¸Ð»ÐµÐ¿ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð°ÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ
Ð¸ÐºÑÐ°Ð»ÑÐ½ÑÐµ ÑÐ°Ð·ÑÑÐ´Ñ
Ð¸Ð¾Ð½Ð½ÑÐµ ÐºÐ°Ð½Ð°Ð»Ñ
Ð¿ÑÐ¾ÑÑÑÐ°Ð½ÑÑÐ²ÐµÐ½Ð½Ð¾Ðµ ÑÐ°ÑÐ¿ÑÐ¾ÑÑÑÐ°Ð½ÐµÐ½Ð¸Ðµ Ð½ÐµÐ¹ÑÐ¾Ð½Ð½Ð¾Ð¹ Ð°ÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸
Ð±Ð¸Ð¾ÑÐ¸Ð·Ð¸ÑÐµÑÐºÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ
epileptic activity
ictal discharges
ion channels
spatial distribution of neural activity
biophysical model

description: ÐÑÐ¾Ð±Ð»ÐµÐ¼Ð° Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¿Ð¸Ð»ÐµÐ¿ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð°ÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð½ÐµÑÐ²Ð½Ð¾Ð¹ ÑÐºÐ°Ð½Ð¸ Ð¾ÑÑÐ°ÑÑÑÑ Ð°ÐºÑÑÐ°Ð»ÑÐ½Ð¾Ð¹. Ð Ð°Ð½ÐµÐµ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½Ð°Ñ Ð±Ð¸Ð¾ÑÐ¸Ð·Ð¸ÑÐµÑÐºÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Epileptor-2, Ð¾Ð¿Ð¸ÑÑÐ²Ð°ÑÑÐ°Ñ Ð²Ð¾Ð·Ð±ÑÐ´Ð¸Ð¼Ð¾ÑÑÑ Ð½ÐµÐ¹ÑÐ¾ÑÐµÑÐ¸ Ð¸ Ð¸Ð¾Ð½Ð½ÑÑ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÑ, Ð²Ð¾ÑÐ¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸Ñ Ð¸ÐºÑÐ°Ð»ÑÐ½ÑÐµ Ð¸ Ð¸Ð½ÑÐµÑÐ¸ÐºÑÐ°Ð»ÑÐ½ÑÐµ ÑÐ°Ð·ÑÑÐ´Ñ ÐºÐ°Ðº Ð¿ÑÐ¾ÑÑÑÐ°Ð½ÑÑÐ²ÐµÐ½Ð½Ð¾ Ð¾Ð´Ð½Ð¾ÑÐ¾Ð´Ð½ÑÑ Ð°ÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ. ÐÐ»Ñ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ Ð¿ÑÐ¾ÑÑÑÐ°Ð½ÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐ°ÑÐ¿ÑÐ¾ÑÑÑÐ°Ð½ÐµÐ½Ð¸Ñ ÑÐ°Ð·ÑÑÐ´Ð¾Ð² Ð¿Ð¾ ÐºÐ¾ÑÐµ Ð¼Ð¾Ð·Ð³Ð° Ð¿ÑÐµÐ´Ð»Ð°Ð³Ð°ÐµÑÑÑ Ð¾Ð±Ð¾Ð±ÑÐµÐ½Ð¸Ðµ ÑÑÐ¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸, Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð½Ð¾Ðµ Ð½Ð° ÑÐ»Ð»Ð¸Ð¿ÑÐ¸ÑÐµÑÐºÐ¾Ð¼ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ð¸, ÑÑÐ¸ÑÑÐ²Ð°ÑÑÐµÐ¼ ÑÐ¸Ð½Ð°Ð¿ÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð¼ÐµÑÐ°Ð½Ð¸Ð·Ð¼ ÑÐ°ÑÐ¿ÑÐ¾ÑÑÑÐ°Ð½ÐµÐ½Ð¸Ñ ÑÐ¸Ð½ÑÑÐ¾Ð½Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð°ÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð½ÐµÐ¹ÑÐ¾Ð½Ð¾Ð². ÐÐ¾Ð»ÑÑÐµÐ½Ñ ÑÐµÑÐµÐ½Ð¸Ñ, Ð¾ÑÑÐ°Ð¶Ð°ÑÑÐ¸Ðµ Ð²Ð¾Ð»Ð½Ð¾Ð²Ð¾Ð¹ ÑÐ°ÑÐ°ÐºÑÐµÑ ÑÐ°ÑÐ¿ÑÐ¾ÑÑÑÐ°Ð½ÐµÐ½Ð¸Ñ ÑÐ°Ð·ÑÑÐ´Ð° Ð¸ ÑÐ¾Ð¿Ð¾ÑÑÐ°Ð²Ð¸Ð¼ÑÐµ Ñ Ð´Ð°Ð½Ð½ÑÐ¼Ð¸ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÑ Ð½Ð°Ð±Ð»ÑÐ´ÐµÐ½Ð¸Ð¹.
description: Mathematical modelling of epileptic activity of a nervous tissue is an open problem. The previously developed biophysical model Epileptor-2 which describes the excitability of the neural network and the ionic dynamics reproduces ictal and interictal discharges as a spatially homogeneous activity. To describe the spatial propagation of the discharges across the cerebral cortex a generalization of the model is proposed, based on an elliptical equation that takes into account the propagation of neuronal impulses via axodendritic trees. Simulated spatio-temporal patterns of extracellular potassium concentration as of the main characteristic of spatial excitability have been found to reflect the wave-like nature of the discharge propagation and are comparable with experimental observations.
Characterization of lignin molar mass and molecular conformation by multi-angle light scattering
Creators: name: Ji, Lun
Publisher: name: University of British Columbia
Year: 2019

description: There are many obstacles that hinder the understanding and hence the utilization of softwood kraft lignin (SKL). The lack of reliable measurements for lignin molecular weight and the corresponding molecular conformation hampers proper elucidation of structure-property relationships. Conventional gel permeation chromatography (GPC) is unable to robustly measure the molecular weight because of a lack of calibration standards with a similar structure to lignin. Further, the potential for interactions between lignin and the column gel packing delays separation, changing the mechanism from a strict hydrodynamic radius interpretation. In the present work, the determination of absolute molar mass of technical lignin was conducted utilizing gel permeation chromatography (GPC) combined with multi-angle light scattering (MALS). In order to clarify the light scattering profile, six SKL fractions, homogeneous in both structure and size were obtained by a combination of ultrafiltration and organic solvent fractionation. Further information on the molecular structure was studied utilizing a differential viscometer combined with quantitative 1D and 2D nuclear magnetic resonance spectroscopy (NMR) methods for chemical and structural analysis of functional groups and interunit linkages, respectively. Separated lignin fractions were used to enhance the clarity of light scattering profiles by narrowing the molecular weight distribution of lignin fractions so the larger polymers would not dominate the scattering. For solvent fractionated materials, the acetone soluble fraction had a lower molecular weight than the acetone insoluble fraction. In addition, hydrodynamic behaviour was acquired based on viscosity and molecular mass of fractionated samples. Acetone soluble lignin was found to possess a more compact structure relative to the acetone insoluble fraction, due to a significantly lower “α” value in the Mark-Houwink-Sakurada (MHS) plot. This compact geometry was supported by the structural analysis from NMR showing the acetone soluble part contained fewer native linkages and aliphatic side chains, which suggests the samples were considerably degraded. The relative degree of compactness (branching degree) was quantified by comparing hydrodynamic behaviour of SKL fractions with a “linear” lignin reference, as represented by enzymatic milled acidolysis lignin (EMAL), and it was found that lower molecular mass samples contained more branches than higher molecular mass fractions.
COMPARATIVE STUDY OF THERMAL, STRUCTURAL,  CONDUCTIVITY AND DIALECTICAL PROPERTIES OF   LiNi0.925Mg0.075PO4  AND  LiNi0.9Mg0.1PO4CATHODE MATERIALS
Creators: name: MUKEMIL SULTAN
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Mg substituted lithium nickel phosphates, LiNi0.925Mg0.075PO4 and LiNi0.9Mg0.1PO4  cathode
materials are synthesized by three steps solid state reaction method. These materials are
characterized by thermogravimetric analysis (TGA), differential thermogravimetric analysis
(DTA), x-ray powder diffraction (XRD),  energy dispersive spectroscopy (EDS),  Fourier
transform infrared (FT-IR) spectroscopy and complex impedance spectroscopy (CIS)
techniques. From TGA/DTA study, compound formation temperatures as well as the weight
loss regions are identified. XRD  studies of the prepared samples confirm the formation
of good crystallization and well-defined diffraction peaks without impurities. The single-
phase formations of both samples are also confirmed by EDS analysis. From FT-IR study,
different peaks are observed at different wavelength regions, which are responsible for the
formation of  LiNi0.925Mg0.075PO4  and LiNi0.9Mg0.1PO4  compounds.  From the impedance
analysis, it is found that the dielectric constant decreases sharply at low frequency as
compared to that at high frequency and become almost constant on further increasing the
frequency for both samples. The dc conductivity values of  LiNi0.925Mg0.075PO4  and
LiNi0.9Mg0.1PO4  are 3.8 x 10-9
  Scm-1
and 3.94 x 10-9
  Scm-1
, respectively. The obtained
conductivity results are found in the range of the electrical conductivity of semiconductor
(10-7
 to 103
 S/cm), indicating the semiconductor behavior of the samples.
МЕЖЪЯЗЫКОВАЯ ПАРЕМИОЛОГИЧЕСКАЯ АНАЛОГИЯ В РОДСТВЕННЫХ ЯЗЫКАХ (НА ПРИМЕРЕ ТАТАРСКОГО И ТУРЕЦКОГО ЯЗЫКОВ)
Creators: name: Дунаева Руфина Ришатовна
name: Мугтасимова Гульназ Ринатовна
name: Юсупова Альфия Шавкетовна
Publisher: name: Проблемы востоковедения
Year: 2020
Subjects: взаимовлияние
национально-культурный
татарский язык
турецкий язык
паремия
межъязыковые соответствия

description: Взаимовлияние языка и культуры на сегодняшний день является одним из наиболее важных вопросов науки о языке. Процессы глобализации превращают мир в единое информационное пространство, которому требуется максимально высокий уровень межкультурного взаимопонимания. Исходя из этого, представляется актуальным изучить межъязыковые паремиологические соответствия в татарском и турецком языках. В настоящей статье турецкие соответствия татарских паремий описываются в плане полного и частичного совпадения семантики и лексико-грамматической структуры пословиц. Проведенный анализ татарских и турецких паремиологических соответствий даёт возможность раскрыть общие и индивидуальные черты представленных языков, сходство и многообразие культуры, психологии, истории, быта их носителей. Авторы приходят к выводу, что наличие в разных языках паремиологических единиц с общим значением, со сходной структурой и компонентным составом явление нечастое, обусловленное многими факторами. Следует отметить, что факт наличия в татарском и турецком языках паремий с полным соответствием не лишает их национально-культурного своеобразия, а способствует более полному пониманию языкового знака во всем его объеме: и как носителя информации лингвистического, так и экстралингвистического характера. Предполагается, что результаты исследования могут найти применение при разработке спецкурсов по лингвистике, сравнительной паремиологии, лингвокультурологии, тюркологии.
Theoretical issues on the top mass reconstruction at hadron colliders
Creators: name: Corcella, Gennaro
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I discuss a few selected topics related to the reconstruction of the mass of the top quark at hadron colliders. In particular, the relation between the measured top mass and theoretical definitions, such as the pole or MSbar mass, is debated. I will also summarize recent studies on the Monte Carlo uncertainty due to the fragmentation of bottom quarks in top decays.
description: 8 pages, 4 figures, 3 tables. Talk given at TOP 2010, 3rd International Workshop on Top Quark Physics, May 31 - June 4, Bruges, Belgium
THE EFFECT OF TEMPERATURE ON THE ELECTRICAL  AND DIELECTRIC PROPERTIES Mn0.5 Ni0.5-x Znx Fe 2O4 FERRITE
Creators: name: GEZEHAGNE ADDISE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: MnFe2O4
is  one  of  the  iron-based  cubic  spinel  ferrites  possessing  both  magnetic  and
electrical  properties.  In  this  study,  Ni
2+
and  Zn
2+
substituted  Mn
0.5
Ni0.5-x
Znx
Fe2O4
(where x = 0.05 and 0.1) ferrites are prepared by a solid state reaction method.  These ferrites
are characterized  by X-ray powder diffraction (XRD), scanning electron  microscopy (SEM),
Fourier  transform  infrared  (FT-IR)  spectroscopy  and  complex  impedance  spectroscopy.
X-ray diffraction patterns of the two samples confirms partial substitution of Ni
2+
and Zn
+2
ions  for  Mn
2+
ions  does  not  change  the  basic  structure  of  MnFe
2O4
.  It  also  provides
information about the formation of a single phase spinel structure.  The SEM images of the
Mn0.5
Ni0.5-x
Znx
Fe2O4
(where x = 0.05 and 0.1) ferrites reveals  that the material synthesized
by solid state reaction method contain agglomerated particles as well as some small particles
are observed in addition to the large particles, which is commonly observed from materials
prepared by solid state reaction method. FT-IR analysis confirms the formation of vibrational
frequency bands  associated with the entire spinel structure. The  IR spectra of both ferrites
show two clear and sharp absorption bands in the range of 414.28  –  561.04 cm
−1
. And the
two-strong absorption band, which confirms the presence of M-O (Mn, Ni, Zn, Fe) stretching
band in both synthesized ferrites.
From  the  impedance  analysis,  it  is  found  that  the  real  and  imaginary  parts  of  impedance
values  are  typically  higher  at  low  frequencies  and  lower  at  high  frequencies.  The  AC
conductivity  analysis  confirms  that  the  conduction  mechanism  is  due  to  small  polaron
hopping and follows Jonscher’s law. Dielectric properties, namely dielectric constant (ε′), are
measured at variable temperature using impedance analyzer in the frequency range  from  1
kHz  to  1  MHz.  Both  the  samples  show  usual  dielectric  dispersion  which  is  due  to  the
formation of interfacial polarization.
EXPLORING THE IMPACT OF CLASSROOM GROUP INTERACTION ON  STUDENTS’ ACADEMIC ACHEIVEMENT IN PHYSICS: THE CASE OF BONOSHA  SECONDARY AND PREPARATORY SCHOO
Creators: name: MSc THESIS
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: The  goal  of  this  research  was  to  explore  the  impact  of  classroom  group  interaction  on
students’ academic achievement   in physics. Both correlation and case study research designs
were  used  to  answer  the  two  research  questions.  Is  there  significant  relation  between
classroom  group  interaction  and  students  academic  achievement  in  physics?  This  research
question was answered  by using Pearson correlation. How do classroom group interactions
affect students’ academic achievement?  This  research question was  answered by using case
study.  Pearson Correlation was used to investigate the relationship between classroom group
interaction  and  students’  academic  achievement  in  physics  in  Bonosha  secondary  and
preparatory school. Case study was used to examine how classroom  group interactions affect
academic achievement. Pearson Correlation analyse  showed that  there is  positive correlation
between classroom group interaction and students’ academic achievement.  The results of this
study showed that classroom group interactions affect students’ academic achievement while
student-  student  interaction  is  disrespectful.  Descriptive  case  study  analyses  indicated  that
teacher’s lack of supportive  relat ionship/interaction, reluctance to work in groups, absence of
group  leader,  teacher’s  lack  of  supportive  relationship/interaction,  teacher’s  failure  to  give
clear explanation for the given tasks, and absence of face to face interaction were   the major
factors that have been affecting the implementation of  classroom group interaction  which in
turn affect students’ academic achievement . The results suggest the need  for teachers to be
provided with appropriate resources and assistance to meet the needs of their students beyond
academic instruction.  More over it was suggested that an  attempt must be made to use group
work activities regularly and students should be  made to take part in meaningful  classroom
group interaction.
REVIEW OF TECHNIQUES USED TO STUDY ELASTOMERIC ADHESIVE  MATERIALS DURING DEBONDING FROM HARD SURFACES
Creators: name: SHIMELIS DEGU
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Elastomeric adhesives are  composed of  high polymer elastomers  and tackifying resins.
Debonding of elastomeric adhesives from hard surfaces is initiated by the formation of cavities
which extend  in the bulk of the adhesives. Often cavities are seen nucleating at  the immediate
vicinity of the interface. Surface properties,  topography and chemical composition have an
important influence on the associated mechanism of debonding. Elastomeric adhesive materials
during debonding from hard surfaces focus on the adhesion force, the adhesion energy and the
elastic behavior of these materials. The shear modulus, bulk modulus and shear stress can be
studied using a gamut of adhesion tests. These methods can be used to macroscopically study
debonding.
In this thesis, I present a review of all the tests done to study the adhesive properties of the
materials. Further, I discuss various material systems that can be classified as elastic and visco-
elastic.
SUBSTITUTION EFFECT ON THE STRUCTURE, MORPHOLOGY,  ELECTRICAL AND DIELECTRIC PROPERTIES OF  Mn0.85  (Ni, Zn) 0.15  Fe2O4  FERRITE MATERIALS
Creators: name: TEKETEL YOHANNIS LAMBEBO
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: In  this  study,  Ni  and  Zn  substituted  manganese  ferrites,  Mn0.85
(Ni,  Zn)
0.15
Fe2O4
,  are
successfully  synthesized  by  Sol-gel  method.  X-ray  powder  diffraction  (XRD),  scanning
electron  microscopy  (SEM),  energy  dispersive  spectroscopy  (EDS),  Fourier  transform
infrared  spectroscopy  (FT-IR)  and  impedance  spectroscopy  (IS) characterization techniques
are employed to identify the effect of the substitution  process on  the  structure, morphology,
chemical composition, electrical and dielectric properties of these ferrite materials. The XRD
results confirms  that all peaks  appeared  from both ferrite materials  are very sharp and welldefined,  which indicates  a high crystallinity of  both  samples.  It also reveals  the formation of
cubic  spinel  structure  with  space  group  Fd3m.  The  average  crystal  sizes  are  found  to  be
63nm for  Mn0.85
Ni0.15
Fe2O4
and 61.4nm for  Mn0.85
Zn0.15
Fe2O4
ferrites.  SEM  images  confirm
that  both the prepared samples are almost porous and they have fair uniform  closely packed
distribution of particles. The EDS analysis reveals that all Mn, Fe, Ni, Zn and O elements are
detected in both samples synthesized at 700°C in air for 8hrs.  FT-IR  study  shows, the  two
strong  bands  appeared  at  wavenumbers  582.53  and  591.21cm
-1
for  Mn0.85
Ni0.15
Fe2O4
and
Mn0.85
Zn0.15
Fe2O4
ferrites, respectively that reveal the formation of the cubic spinel structure.
The Cole-Cole plots  for  Mn0.85
Ni0.15
Fe2O4
and Mn
0.85
Zn0.15
Fe2O4
ferrites measured at room
temperature in the frequency range from 1Hz to 1MHz show the formation of two successive
semicircles from both ferrites. The impedance spectroscopic analysis shows that the values of
Z′ for both samples  are found to decrease with increase in frequency.  It is  also found that the
dielectric constant decreases continuously with increasing frequency and becomes constant at
higher frequency region at room temperature.
Multi-modal Graph Learning over UMLS Knowledge Graphs
Creators: name: Burger, Manuel
name: Rätsch, Gunnar
name: Kuznetsova, Rita
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Clinicians are increasingly looking towards machine learning to gain insights about patient evolutions. We propose a novel approach named Multi-Modal UMLS Graph Learning (MMUGL) for learning meaningful representations of medical concepts using graph neural networks over knowledge graphs based on the unified medical language system. These representations are aggregated to represent entire patient visits and then fed into a sequence model to perform predictions at the granularity of multiple hospital visits of a patient. We improve performance by incorporating prior medical knowledge and considering multiple modalities. We compare our method to existing architectures proposed to learn representations at different granularities on the MIMIC-III dataset and show that our approach outperforms these methods. The results demonstrate the significance of multi-modal medical concept representations based on prior medical knowledge.
description: Machine Learning for Health (ML4H) 2023 in Proceedings of Machine Learning Research 225
IDENTIFICATION AND CHARACTERIZATION OF STUDENTS‘  MISCONCEPTIONS IN BASIC ELECTRICITY FOR GRADE 10 IN HETO  SECONDARY SCHOOL
Creators: name: HAILE ASHAMO ACHA
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The main purpose of this study was to identify  and  characterize  students‘ misconceptions
about basic electricity (simple electric circuit).  The study was carried out in Heto
Secondary School in Hadya Zone with special reference to  grade 10 students. Case study
was employed to address the problem. To conduct  this  study,  60 students were selected
through random sampling technique from total population of 360 students. In order to
achieve the objectives,  the study employed conceptual understanding test and semi
structured interview about simple electric circuit. Each question in the conceptual
understanding test and interview was designed to probe students‘ knowledge and
understanding about electric circuit. All data  collected using different tools were analyzed
quantitatively and qualitatively.
The study identified some students‘ misconceptions in electric circuit. These were:  I)
some students  believed that the total resistance of the circuit increased when two or more
resistors were connected in parallel,  II)  the power supply provided constant current
regardless of how the circuit is changed,  III)  only one wire connected to a battery was
needed for the circuit to work,  IV)  each device consumes some of current passing through
it and others. The study also described the causes for these misconceptions. These were
students‘ personal experience, inappropriate use of laboratory, and unevaluated text
books. Thus, to improve the situation, it is recommended that  every educator should be
aware  students back ground,  their  daily life experience, and their pre conceptions before
providing the lessons on electric circuit, teachers should  also  spent more time to produce
more conceptual talk about the topic to bring conceptual understanding, different
instructional methods should be applied to support conceptual understanding of  students
about  simple electric circuit. Replacing those misconceptions by scientifically accepted
conceptual views  were  necessary  and efforts should be made to create awareness
continuously for students, teachers, school principals and educational experts. Conducting trainings  and different workshops with those concerned bodies was  more advisable to
increase the understanding and to avoid misconceptions in  basic electricity.
On the homotopy multiple-variable method and its applications in the interactions of nonlinear gravity waves
Creators: name: Liao, Shijun
Publisher: name: arXiv
Year: 2010
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The basic ideas of a homotopy-based multiple-variable method is proposed and applied to investigate the nonlinear interactions of periodic traveling waves. Mathematically, this method does not depend upon any small physical parameters at all and thus is more general than the traditional multiple-scale perturbation techniques. Physically, it is found that, for a fully developed wave system, the amplitudes of all wave components are finite even if the wave resonance condition given by Phillips (1960) is exactly satisfied. Besides, it is revealed that there exist multiple resonant waves, and that the amplitudes of resonant wave may be much smaller than those of primary waves so that the resonant waves sometimes contain rather small part of wave energy. Furthermore, a wave resonance condition for arbitrary numbers of traveling waves with large wave amplitudes is given, which logically contains Phillips' four-wave resonance condition but opens a way to investigate the strongly nonlinear interaction of more than four traveling waves with large amplitudes. This work also illustrates that the homotopy multiple-variable method is helpful to gain solutions with important physical meanings of nonlinear problems, if the multiple variables are properly defined with clear physical meanings.
description: 50 pages, 11 figures
ЖИЗНЬ, ОТДАННАЯ БАШКИРСКОЙ ЛИНГВИСТИКЕ (К 85-ЛЕТИЮ СО ДНЯ РОЖДЕНИЯ АКАДЕМИКА З.Г. УРАКСИНА)
Creators: name: Сиразитдинов Зиннур Амирович
Publisher: name: Проблемы востоковедения
Year: 2020
Subjects: башкирский язык
лексикография
лексикология
стилистика
социолингвистика
этнолингвистика

description: Статья посвящена научной, общественной и организаторской деятельности доктора филологических наук, действительного члена академии наук Республики Башкортостан Зиннура Г азизовича Ураксина. Ученым опубликованы более 300 научных работ, охватывающих области языкознания и методики преподавания родного языка, культурологии и истории башкирского народа. В статье дается краткий биографический обзор жизни и деятельности ученого. Учитывая, что научному вкладу ученого в национальную лексикографию посвящены ряд исследований, в данной статье автором анализируются работы Зиннура Газизовича в таких областях лингвистики как лексикология, стилистика и культура речи, терминология, социолингвистика и национальная политика. Отмечается, что работы ученого легли в основу сегодняшнего состояния этих направлений башкирской филологии. З.Г. Ураксин был не только крупным ученым, но и крупным организатором науки в республике. Именно при нем в тяжелые 90-е годы прошлого века в Институте истории, языка и литературы, заместителем директора и директором которого он был долгие годы, появились новые отделы и направления научных исследований. Он принимал самое активное участие в становлении башкирской академии наук, будучи его вице-президентом, внес существенный вклад в организацию всей науки в республике. В статье также подчеркивается вклад ученого в подготовку научных кадров не только для башкирского языкознания, но и для русистики, романо-германской филологии, тюркологии. Автором отмечается, что башкирский язык был не только объектом научного интереса, но и смыслом жизни ученого. Вся его активность в общественной жизни была связана с заботой о родном языке и направлена на развитие языка и культуры родного народа.
INVESTIGATION OF MICRO-ELECTRO MECHANICAL SYSTEM (MEMS) DEVICES  FOR HARVESTING ENERGY
Creators: name: AKBER ATUMO TESISO
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Every machine vibrates and emits noise. This is unused energy that, with an appropriate
mechanism, can be returned to the system. Utilizing an array of piezoelectric micro
electromechanical systems micro-electro mechanical system  (MEMS) devices to harvest
this otherwise wasted  energy;  it is possible to improve the efficiency of any number of
mechanical devices. Piezoelectricity is the mechanism by which certain crystalline
structures generate electric potential when under strain, or, conversely, deform when
subjected to an electric potential. It is this first effect that is important to this application.
Though each micro-electro mechanical system (MEMS) device will generate a very small
amount of power, a 1 m2
 area can contain an array of millions of these devices.
Energy harvesting, conservation, and efficiency are the universal application of these
devices makes them ideal for any expeditionary platform, such as ships, aircraft, and
automobiles. This project work  designs and tests the first generations of  acoustic and
vibrational piezoelectric  micro-electro mechanical system (MEMS)  devices; including
time-dependent finite element models, microfabrication processes, and the initial attempts
at characterization and optimization.
Blackbody radiation shift, multipole polarizabilities, oscillator strengths, lifetimes, hyperfine constants, and excitation energies in Ca+
Creators: name: Safronova, M. S.
name: Safronova, U. I.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A systematic study of Ca+ atomic properties is carried out using high-precision relativistic all-order method where all single, double, and partial triple excitations of the Dirac-Fock wave functions are included to all orders of perturbation theory. Reduced matrix elements, oscillator strengths, transition rates, and lifetimes are determined for the levels up to n = 7. Recommended values and estimates of their uncertainties are provided for a large number of electric-dipole transitions. Electric-dipole scalar polarizabilities for the 5s, 6s, 7s, 8s, 4p, 5p, 3d, and 4d states and tensor polarizabilities for the 4p, 5p, 3d, and 4d states in Ca+ are calculated. Methods are developed to accurately treat the contributions from highly-excited states, resulting in significant (factor of 3) improvement in accuracy of the 3d_{5/2} static polarizability value, 31.8(3) a.u., in comparison with the previous calculation [Arora et al., Phys. Rev. A 76, 064501 (2007)]. The blackbody radiation (BBR) shift of the 4s - 3d_{5/2} clock transition in Ca+ is calculated to be 0.381(4) Hz at room temperature, T=300K. Electric-quadrupole 4s -nd and electric-octupole 4s -nf matrix elements are calculated to obtain the ground state multipole E2 and E3 static polarizabilities. The hyperfine constants A are determined for the low-lying levels up to n = 7. The quadratic Stark effect on hyperfine structure levels of 43Ca+ ground state is investigated. These calculations provide recommended values critically evaluated for their accuracy for a number of Ca+ atomic properties for use in planning and analysis of various experiments as well as theoretical modeling.
description: 18 pages
Harmonic Analysis in One-Parameter Metabelian Nilmanifolds
Creators: name: Ghorbel, Amira
Publisher: name: arXiv
Year: 2011
Subjects: subject: Group Theory (math.GR)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: Let $G$ be a connected, simply connected one-parameter metabelian nilpotent Lie group, that means, the corresponding Lie algebra has a one-codimensional abelian subalgebra. In this article we show that $G$ contains a discrete cocompact subgroup. Given a discrete cocompact subgroup $Γ$ of $G$, we define the quasi-regular representation $τ= {\rm ind}_Γ^G 1$ of $G$. The basic problem considered in this paper concerns the decomposition of $τ$ into irreducibles. We give an orbital description of the spectrum, the multiplicity function and we construct an explicit intertwining operator between $τ$ and its desintegration without considering multiplicities. Finally, unlike the Moore inductive algorithm for multiplicities on nilmanifolds, we carry out here a direct computation to get the multiplicity formula.
ПРИЧИНЫ И ОСОБЕННОСТИ СЕМАНТИЧЕСКОГО РАЗВИТИЯ ЛЕКСИКИ ЖИВОТНОВОДСТВА В БАШКИРСКОМ ЯЗЫКЕ И ЕГО ДИАЛЕКТАХ
Creators: name: Акманова Римма Суюндуковна
Publisher: name: Проблемы востоковедения
Year: 2020
Subjects: лексика башкирского языка
лексика животноводства
семантическое развитие
этимология
тюркские языки
говор
диалект

description: В статье рассматриваются причины и особенности семантического развития лексики башкирского языка. Все глубже человек познает все стороны действительности, и язык усовершенствуется: вносятся изменения в ранее существующие понятия или создаются новые. При этом первичное, наиболее раннее значение слова по каким-то причинам может оказаться утраченным, забытым. Восстановление первичного значения осуществляется или путем анализа семантического значения производящей основы во всех родственных словах данного языка, или путем сопоставления значений данного слова с этимологически единым в родственных языках. Первый путь не всегда надежен по двум причинам: поскольку слов с этой основой оказывается недостаточно, или семантические различия между однокоренными основами настолько существенны, что это затрудняет установлению первичного значения. Поэтому в этимологическом исследовании чаще используется второй путь сопоставления значений фонетически соответствующих слов в родственных языках. Обычно хотя бы в одном из языков первичное значение сохраняется. При установлении первичного значения слова учитывается, что развитие значений идет чаще от конкретного к абстрактному. В статье рассматриваются этимологии лексики животноводства. Отмечается, что, кроме указанных терминов, представлено и множество диалектных. Семантическая реконструкция связана с выявлением первичного значения слова путём анализа всевозможных путей семантического развития, а в случаях лексической омонимии, следует сопоставить развитие значения слов в других языках, чтобы установить возможность этимологического единства современных омонимов.
Essays on institutional investors and asset pricing
Creators: name: Zhang, Tianyao
Publisher: name: University of British Columbia
Year: 2019

description: In this thesis, I study the asset pricing aspect of institutional investors and their ability to provide financial services to households. The thesis consists of three essays. In the first essay, I theoretically investigate how institutional investors with different holding horizons allocate capital and the related asset pricing implications. I propose a model in which some institutions have shorter holding horizons, defined as short-term institutions, than other institutions, i.e. long-term institutions. The optimal portfolio of short-term institutions tilts towards speculative stocks that experience more volatile future demand shocks, which create transient trading opportunities. The current demand from short-term institutions increases the prices of these speculative stocks and reduces their buy-and-hold returns, making them less desirable for long-term investors. The model provides predictions relating a stock's short-term institutional ownership, trading opportunity, and expected return. In the second essay, I test the predictions of the first essay. Empirically, short-term institutions, identified as high-turnover institutions, invest more in stocks with higher CAPM beta, higher idiosyncratic volatility, and lower buy-and-hold abnormal returns. The difference in the buy-and-hold abnormal return between stocks with least and most short-term institutional investors is more than 3% per year. Stocks with more short-term institutional investors also provide more trading opportunities, allowing short-term institutions to make more trading profits. Their trading profits increase with market sentiment. This essay demonstrates that the desirability of investing in speculative stocks depends on an institution's holding horizon. The third essay examines the well-established negative relation between expense ratios and future net-of-fees performance of actively managed equity mutual funds. I show that this relation is an artifact of the failure to adjust a fund's performance for its exposures to the profitability and investment factors. High-fee funds exhibit a strong preference for stocks with low operating profitability and high investment rates, characteristics associated with low expected returns. After controlling for exposures to profitability and investment factors, I find that high-fee funds significantly outperform low-fee funds before fees and perform equally well net of fees. These results support the theoretical prediction that skilled managers extract rents by charging high fees.
The Ubiquitous 'c': from the Stefan-Boltzmann Law to Quantum Information
Creators: name: Cardy, John
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: I discuss various aspects of the role of the conformal anomaly number c in 2- and 1+1-dimensional critical behaviour: its appearance as the analogue of Stefan's constant, its fundamental role in conformal field theory, in the classification of 2d universality classes, and as a measure of quantum entanglement, among other topics.
description: 8 pages, 2 figures. Boltzmann Medal Lecture, Statphys24, Cairns 2010. v3: minor revisions