cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Heisenberg, uncertainty, and the scanning tunneling microscope
Creators: name: Hofer, Werner A
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show by a statistical analysis of high-resolution scanning tunneling microscopy (STM) experiments, that the interpretation of the density of electron charge as a statistical quantity leads to a conflict with the Heisenberg uncertainty principle. Given the precision in these experiments we find that the uncertainty principle would be violated by close to two orders of magnitude, if this interpretation were correct. We are thus forced to conclude that the density of electron charge is a physically real, i.e., in principle precisely measurable quantity.
description: The paper has now been published in Frontiers of Physics. I have added a paragraph at the end citing other work on the foundations of quantum mechanics by Khrennikov, Groessing, Elze, and t'Hooft
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¿ÑÐ¾ÑÐµÑÑÐ° ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸Ð½ÑÐµÑÑÐµÐ¹ÑÐ° Ð² Ð²ÐµÐ±-Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ð¸ Ñ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¼ ÐºÐ¾Ð½ÑÐµÐ½ÑÐ¾Ð¼ Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÑÐµÐºÐ»Ð°Ð¼Ð½Ð¾Ð³Ð¾ Ð°Ð³ÑÐµÐ³Ð°Ñ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: Development of methodology of web application with dynamic content interface formation process optimization on the example of the ads aggregator
Creators: name: ÐÐµÐ»ÑÐ½Ð¸ÐºÐ¾Ð², ÐÐ²Ð³ÐµÐ½Ð¸Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: ÐÐ½ÑÐµÑÑÐµÐ¹ÑÑ
ÐÐ½ÑÐµÑÐ½ÐµÑ
Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ° Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸
ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ðµ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸
Ð²ÐµÐ±-Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ðµ Ñ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¼ ÐºÐ¾Ð½ÑÐµÐ½ÑÐ¾Ð¼
ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¸Ð½ÑÐµÑÑÐµÐ¹ÑÐ°
ÐºÐ»Ð¸ÐµÐ½Ñ-ÑÐµÑÐ²ÐµÑÐ½Ð¾Ðµ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ðµ

description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ Ð²ÐµÐ±-Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ðµ Boombate.com. Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ - ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¿ÑÐ¾ÑÐµÑÑÐ° ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸Ð½ÑÐµÑÑÐµÐ¹ÑÐ° Ð² Ð²ÐµÐ±-Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ð¸ Ñ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¼ ÐºÐ¾Ð½ÑÐµÐ½ÑÐ¾Ð¼ Ð´Ð»Ñ Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Boombate.com. Ð Ð¿ÑÐ¾ÑÐµÑÑÐµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ñ Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÑ Ð¸ Ð¼ÐµÑÐ¾Ð´Ñ, Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÐµÐ¼ÑÐµ Ð¿ÑÐ¸ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ Ð°ÑÑÐ¸ÑÐµÐºÑÑÑÑ Ð²ÐµÐ±-Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ð¹. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±ÑÐ» Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ Ð²ÑÐ±Ð¾Ñ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÐµÐ»ÑÐ½ÑÑ, Ð²Ð¾ÑÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð½ÑÑ, ÑÐ½Ð¸Ð²ÐµÑÑÐ°Ð»ÑÐ½ÑÑ Ð¸Ð· Ð½Ð¸Ñ Ð¸ ÑÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ°. Ð­ÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÑÐµÑÑÑ ÐºÐ¾ÑÐ¾ÑÐºÐ¸Ð¼ Ð²ÑÐµÐ¼ÐµÐ½ÐµÐ¼ Ð¾ÑÐºÐ»Ð¸ÐºÐ° Ð²ÐµÐ±-ÑÐµÑÐ²ÐµÑÐ°, Ð¼Ð¸Ð½Ð¸Ð¼Ð°Ð»ÑÐ½ÑÐ¼ ÑÐ¸ÑÐ»Ð¾Ð¼ Ð¾ÑÐ¸Ð±Ð¾Ðº Ð¸ Ð²ÑÑÐ¾ÐºÐ¾Ð¹ ÑÑÐµÐ¿ÐµÐ½ÑÑ Ð¾ÑÐºÐ°Ð·Ð¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ Ð¿ÑÐ¸ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð½ÑÑ Ð½Ð°Ð³ÑÑÐ·ÐºÐ°Ñ.
description: The object of the study is Boombate.com web application. Objective - to develop a methodology of web application with dynamic content interface formation process optimization for Boombate.com web application. In the process, the existent instruments and methods that are used for web app architecture formation were studied. The study was carried out to select the most productive, in demand, and versatile of them and to form the result methodology. Efficiency of the methodology defined by web server short response time, minimal errors amount and high level of fault tolerance under increased loads.
title: Ð§Ð¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ ÑÐ´Ð°ÑÐ½ÑÑ Ð²Ð¾Ð»Ð½ Ñ Ð´Ð²ÑÐ¼ÐµÑÐ½ÑÐ¼Ð¸ Ð¿ÑÐµÐ¿ÑÑÑÑÐ²Ð¸ÑÐ¼Ð¸ Ð² Ð¿Ð°ÐºÐµÑÐ°Ñ OpenFOAM Ð¸ SINF/Flag-SÐ§Ð¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ ÑÐ´Ð°ÑÐ½ÑÑ Ð²Ð¾Ð»Ð½ Ñ Ð´Ð²ÑÐ¼ÐµÑÐ½ÑÐ¼Ð¸ Ð¿ÑÐµÐ¿ÑÑÑÑÐ²Ð¸ÑÐ¼Ð¸ Ð² Ð¿Ð°ÐºÐµÑÐ°Ñ OpenFOAM Ð¸ SINF/Flag-S
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: Numerical modeling of the shock waves interaction with two-dimensional obstacles in OpenFOAM and SINF/Flag-S packages
Creators: name: ÐÐ°Ð»ÑÐ·Ð¸Ð½Ð°, ÐÐ½Ð½Ð°
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: 2023
Subjects: ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð²ÑÑÐ¾ÐºÐ¾ÑÐºÐ¾ÑÐ¾ÑÑÐ½ÑÐµ ÑÐµÑÐµÐ½Ð¸Ñ
Ð³Ð°Ð·Ð¾Ð²Ð°Ñ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ°
ÑÑ ÐµÐ¼Ñ Ð³Ð¾Ð´ÑÐ½Ð¾Ð²ÑÐºÐ¾Ð³Ð¾ ÑÐ¸Ð¿Ð°
ÑÑ ÐµÐ¼Ñ ÑÐ°ÑÑÐµÐ¿Ð»ÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÐ¾ÐºÐ¾Ð²
ÑÑ ÐµÐ¼Ñ Ð°Ð¿Ð¿ÑÐ¾ÐºÑÐ¸Ð¼Ð°ÑÐ¸Ð¸ ÐºÐ¾Ð½Ð²ÐµÐºÑÐ¸Ð²Ð½ÑÑ Ð¿Ð¾ÑÐ¾ÐºÐ¾Ð²
numerical simulation
high-speed flows
gas dynamics
godunov-type schemes
flux splitting schemes
convective fluxes approximation schemes

description: Ð Ð°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ð¼Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð·Ð°Ð´Ð°Ñ Ð³Ð°Ð·Ð¾Ð²Ð¾Ð¹ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ¸ Ð² Ð¿Ð°ÐºÐµÑÐ°Ñ OpenFOAM Ð¸ SINF/Flag-S Ð¸ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ ÑÐ¸ÑÐ»ÐµÐ½Ð½ÑÑ ÑÐµÑÐµÐ½Ð¸Ð¹ Ñ Ð¸Ð¼ÐµÑÑÐ¸Ð¼Ð¸ÑÑ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐ¼Ð¸ Ð¸ ÑÐ¸ÑÐ»ÐµÐ½Ð½ÑÐ¼Ð¸ Ð´Ð°Ð½Ð½ÑÐ¼Ð¸ Ð´ÑÑÐ³Ð¸Ñ Ð°Ð²ÑÐ¾ÑÐ¾Ð², Ð° ÑÐ°ÐºÐ¶Ðµ Ñ Ð°Ð½Ð°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ¸Ð¼Ð¸ ÑÐµÑÐµÐ½Ð¸ÑÐ¼Ð¸. ÐÐ°Ð´Ð°ÑÐ¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ: 1. ÐÐ±Ð·Ð¾Ñ ÑÑÐ´Ð° ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ñ ÑÑÐµÐ¼ Ð°Ð¿Ð¿ÑÐ¾ÐºÑÐ¸Ð¼Ð°ÑÐ¸Ð¸ ÐºÐ¾Ð½Ð²ÐµÐºÑÐ¸Ð²Ð½ÑÑ Ð¿Ð¾ÑÐ¾ÐºÐ¾Ð². 2. ÐÑÐ±Ð¾Ñ ÑÐµÑÑÐ¾Ð²ÑÑ Ð·Ð°Ð´Ð°Ñ, Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ðµ ÑÐ¾Ð¿Ð¾ÑÑÐ°Ð²Ð¸ÑÐµÐ»ÑÐ½ÑÑ ÑÐ°ÑÑÐµÑÐ¾Ð². 3. ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÑÑÐ½ÐºÑÐ¸Ð¹ Ð¾Ð³ÑÐ°Ð½Ð¸ÑÐ¸ÑÐµÐ»ÐµÐ¹. Ð Ð°ÑÑÐµÑÑ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»Ð¸ÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¿Ð°ÐºÐµÑÐ¾Ð° OpenFOAM, Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð½Ð¾Ð³Ð¾ Ð´Ð»Ñ ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð·Ð°Ð´Ð°Ñ Ð¼ÐµÑÐ°Ð½Ð¸ÐºÐ¸ ÑÐ¿Ð»Ð¾ÑÐ½ÑÑ ÑÑÐµÐ´, Ð¸ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ ÐºÐ¾Ð´Ð° SINF/Flag-S, ÑÐ°Ð·ÑÐ°Ð±Ð°ÑÑÐ²Ð°ÐµÐ¼Ð¾Ð¼ Ð² Ð¡ÐÐÐÐ£.
description: The work is devoted to numerical modeling of gas dynamics problems in OpenFOAM and SINF/Flag-S packages and its comparison with the available experimental and numerical data of other authors, as well as with analytical solutions. Research objectives: 1. Review of the existing numerical schemes for convective flux evaluation 2. Selection of test problems, comparative calculations 3. Study of the features of the use of limiter functions. The calculations were carried out using the OpenFOAM software package, designed for numerical simulation of problems in continuum mechanics, and the SINF/Flag-S program code developed in SPBPU.
A note on $n$-axially symmetric harmonic maps from $B^3$ to $S^2$ minimizing the relaxed energy
Creators: name: Martinazzi, Luca
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: For any n>1 we give an explicit example of an n-axially symmetric Cartesian current in B^3 x S^2 with non-trivial vertical part and non-constant graph part minimizing the relaxed Dirichlet energy among the n-axially symmetric Cartesian currents with the same boundary. This stands in sharp contrast with a results of Hardt, Lin and Poon for the case n=1.
description: 17 pages
Editorial Agronomía Tropical 2017
Creators: name: León-Brito, Oralys
Publisher: name: Zenodo
Year: 2017
Subjects: Venezuela

description: La Revista AgronomíA TropicAl del Instituto Nacional de Investigaciones Agrícolas, en su volumen 67 año 2017, exhibe una nueva portada. Esto es el principio de una serie de cambios que se incorporan para renovar su imagen. El volumen contiene artículos sobre diversos aspectos de la investigación agrícola vegetal. Las áreas que abarca son entomología, mejoramiento genético, agroecología, suelos, fertilización y protección vegetal. Se inicia con aportes al conocimiento de especies del género Coptera en Venezuela, que son potenciales agentes controladores biológicos de moscas de importancia agrícola. En este se incluyen nuevos registros de especies; información biogeográfica de las especies descritas, así como también una clave actualizada e ilustrada para la separación de los grupos de Coptera y de las nuevas especies del género. Como segundo tema, se presenta el avance genético en la población de maíz (Zea mays L.) SA7, sometida a cinco ciclos de selección entre y dentro de familias de medios hermanos. Aspecto que corresponde al mejoramiento genético de uno de los cereales de mayor importancia económica en Venezuela, como lo es el maíz. Otros de los resultados de investigación que se incluyen son la caracterización de materiales compostados obtenidos de residuos vegetales del Mercado Principal de Mérida en Venezuela. El proceso de compostaje se muestra como alternativa al almacenaje de estos desechos, cuya putrefacción al aire libre genera un problema ambiental y de salud pública; además, puede ser viable el uso de los compost como abono orgánico. Seguidamente, se presenta un artículo concerniente a la fijación de amonio en el perfil de un suelo molisol cultivado con caña de azúcar en el valle del río Yaracuy, Venezuela.
Data Accessibility.docx from Temporary prey storage along swarm columns of army ants: an adaptive strategy for successful raiding?
Creators: name: Póvoas de Lima, Hilário
name: Teseo, Serafino
name: Leite Castro de Lima, Raquel
name: Souza Ferreira-Châline, Ronara
name: Châline, Nicolas
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: While pillaging the brood of other ant colonies, Eciton army ants accumulate prey in piles, or caches, along their foraging trails. Widely documented, these structures have historically been considered as by-products of heavy traffic or aborted relocations of the ants' temporary nest, or bivouac. However, we recently observed that caches of the hook-jawed army ant, Eciton hamatum, appeared independently from heavy traffic or bivouac relocations. In addition, the flow of prey through caches varied based on the quantity of prey items workers transported. As this suggested a potential adaptive function, we developed agent-based simulations to compare raids of caching and non-caching virtual army ants. We found that caches increased the amount of prey that relatively low numbers of raiders were able to retrieve. However, this advantage became less conspicuous—and generally disappeared—as the number of raiders increased. Based on these results, we hypothesize that caches maximize the amount of prey that limited amounts of raiders can retrieve, especially as prey colonies coordinately evacuate their brood. In principle, caches also allow workers to safely collect multiple-prey items and efficiently transport them to the bivouac. Further field observations are needed to test this and other hypotheses emerging from our study.
Heavy Flavor DIS Wilson coefficients in the asymptotic regime
Creators: name: Ablinger, J.
name: Bierenbaum, I.
name: Blümlein, J.
name: Hasselhuhhn, A.
name: Klein, S.
name: Schneider, C.
name: Wißbrock, F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We report on results for the heavy flavor contributions to $F_2(x,Q^2)$ in the limit $Q^2\gg m^2$ at {\sf NNLO}. By calculating the massive $3$--loop operator matrix elements, we account for all but the power suppressed terms in $m^2/Q^2$. Recently, the calculation of fixed Mellin moments of all $3$--loop massive operator matrix elements has been finished. We present new all--$N$ results for the $O(n_f)$--terms, thereby confirming the corresponding parts of the $3$--loop anomalous dimensions. Additionally, we report on first genuine $3$--loop results of the ladder--type diagrams for general values of the Mellin variable $N$.
description: 8 pages LATEX, 4 figures, 1 style file
A dynamical symmetry for supermembranes
Creators: name: de Woul, Jonas
name: Hoppe, Jens
name: Lundholm, Douglas
name: Sundin, Martin
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A dynamical symmetry for supersymmetric extended objects is given.
description: 3 pages
The Transfer of Evolved Artificial Immune System Behaviours between Small and Large Scale Robotic Platforms
Creators: name: Whitbrook, Amanda
name: Aickelin, Uwe
name: Garibaldi, Jonathan M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This paper demonstrates that a set of behaviours evolved in simulation on a miniature robot (epuck) can be transferred to a much larger scale platform (a virtual Pioneer P3-DX) that also differs in shape, sensor type, sensor configuration and programming interface. The chosen architecture uses a reinforcement learning-assisted genetic algorithm to evolve the epuck behaviours, which are encoded as a genetic sequence. This sequence is then used by the Pioneers as part of an adaptive, idiotypic artificial immune system (AIS) control architecture. Testing in three different simulated worlds shows that the Pioneer can use these behaviours to navigate and solve object-tracking tasks successfully, as long as its adaptive AIS mechanism is in place.
description: 12 pages, 3 figures, 2 tables, 9th International Conference on Artificial Evolution (EA 09),
High On-Off Ratio Bilayer Graphene Complementary Field Effect Transistors
Creators: name: Majumdar, Kausik
name: Murali, Kota V. R. M.
name: Bhat, Navakanta
name: Xia, Fengnian
name: Lin, Yu-Ming
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this paper, we propose a novel S/D engineering for dual-gated Bilayer Graphene (BLG) Field Effect Transistor (FET) using doped semiconductors (with a bandgap) as source and drain to obtain unipolar complementary transistors. To simulate the device, a self-consistent Non-Equilibrium Green's Function (NEGF) solver has been developed and validated against published experimental data. Using the simulator, we predict an on-off ratio in excess of $10^4$ and a subthreshold slope of ~110mV/decade with excellent scalability and current saturation, for a 20nm gate length unipolar BLG FET. However, the performance of the proposed device is found to be strongly dependent on the S/D series resistance effect. The obtained results show significant improvements over existing reports, marking an important step towards bilayer graphene logic devices.
description: 4 pages, 11 figures
title: ÐÐ½Ð°Ð»Ð¸Ð· Ð°Ð²ÑÐ¾ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹ Ð² ÑÑ ÐµÐ¼Ðµ Ñ Ð°ÐºÑÐ¸Ð²Ð½ÑÐ¼ Ð½ÐµÐ»Ð¸Ð½ÐµÐ¹Ð½ÑÐ¼ Ð´Ð²ÑÑ Ð¿Ð¾Ð»ÑÑÐ½Ð¸ÐºÐ¾Ð¼ Ð¿ÑÐ¸ Ð½Ð°Ð»Ð¸ÑÐ¸Ð¸ Ð½ÐµÑÐºÐ¾Ð»ÑÐºÐ¸Ñ Ð½ÐµÑÑÑÐ¾Ð¹ÑÐ¸Ð²ÑÑ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ð¹ ÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐ¸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: Analysis of self-oscillations in a scheme with an active nonlinear two-pole in the presence of several unstable equilibrium states
Creators: name: Ð§Ð¶Ñ Ð§Ð¶ÑÐ½ÑÐ·Ðµ
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: 2021
Subjects: ÑÐ²Ð»ÐµÐ½Ð¸Ðµ Ñ Ð°Ð¾ÑÐ°
ÑÑ ÐµÐ¼Ð° Ð§ÑÐ°
Ð½ÐµÐ»Ð¸Ð½ÐµÐ¹Ð½ÑÐµ Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½ÑÐµ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ
chaos phenomenon
Chua scheme
nonlinear differential equations

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð·Ð½Ð°ÐºÐ¾Ð¼Ð¸Ñ Ñ ÑÐ°Ð¾ÑÐ¸ÑÐµÑÐºÐ¸Ð¼ ÑÐ²Ð»ÐµÐ½Ð¸ÐµÐ¼ Ð² ÑÐ¼ÐµÑÐ°Ð½Ð½Ð¾Ð¼ ÑÐ²Ð»ÐµÐ½Ð¸Ð¸ Ð¸ Ð¸Ð·ÑÑÐ°ÐµÑ ÑÐ¸Ð¿Ð¸ÑÐ½ÑÐ¹ ÑÐ°Ð¾ÑÐ¸ÑÐµÑÐºÐ¸Ð¹ ÐºÐ¾Ð½ÑÑÑ Ð² ÑÐµÑÐ½Ð¾Ð¼ ÐºÐ¾Ð½ÑÑÑÐµ - ÐºÐ¾Ð½ÑÑÑ Ð§ÑÐ° Ñ ÑÐ¾ÑÐºÐ¸ Ð·ÑÐµÐ½Ð¸Ñ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð·Ð°. ÐÐ¾Ð²ÑÐ¾ÑÐ½Ð¾Ðµ Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ° ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½ÑÐ° Ð² ÑÐµÐ¿Ð¸ Ð§ÑÐ° Ð¼Ð¾Ð¶ÐµÑ Ð²ÑÐ·Ð²Ð°ÑÑ Ð¼Ð½Ð¾Ð¶ÐµÑÑÐ²Ð¾ ÑÐ°Ð¾ÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐ²Ð»ÐµÐ½Ð¸Ð¹. ÐÐ¾Ð·Ð½Ð¸ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ðµ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ, Ð¼Ð¾Ð¹ Ð¿ÑÐ¾ÑÐµÑÑ Ð¸ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ðµ ÑÐµÐ¾ÑÐ¸Ð¸ ÑÐ°Ð¾ÑÐ°. Ð Ð°Ð·Ð²Ð¸ÑÐ¸Ðµ ÑÑÐµÐ¼Ñ Ð§ÑÐ° Ð±ÑÐ»Ð¾ Ð´Ð¾Ð¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÐ½Ð¾ Ð¸Ð·ÑÑÐµÐ½Ð¾ Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¾
description: The given work is devoted to One of the most typical non-linear circuits is the third-order autonomous Chuaâs circuit, in which chaotic attractors can be observed. Chuaâs circuit is the simplest autonomous circuit that can produce chaotic behavior. All the bifurcation and chaos phenomena obtained from the system described by the third-order autonomous ordinary differential equation can be observed in the Chuaâs circuit through computer simulation and oscilloscope.
appendix_3_food_continuous_vs_single_caching.pdf from Temporary prey storage along swarm columns of army ants: an adaptive strategy for successful raiding?
Creators: name: Póvoas de Lima, Hilário
name: Teseo, Serafino
name: Leite Castro de Lima, Raquel
name: Souza Ferreira-Châline, Ronara
name: Châline, Nicolas
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: While pillaging the brood of other ant colonies, Eciton army ants accumulate prey in piles, or caches, along their foraging trails. Widely documented, these structures have historically been considered as by-products of heavy traffic or aborted relocations of the ants' temporary nest, or bivouac. However, we recently observed that caches of the hook-jawed army ant, Eciton hamatum, appeared independently from heavy traffic or bivouac relocations. In addition, the flow of prey through caches varied based on the quantity of prey items workers transported. As this suggested a potential adaptive function, we developed agent-based simulations to compare raids of caching and non-caching virtual army ants. We found that caches increased the amount of prey that relatively low numbers of raiders were able to retrieve. However, this advantage became less conspicuous—and generally disappeared—as the number of raiders increased. Based on these results, we hypothesize that caches maximize the amount of prey that limited amounts of raiders can retrieve, especially as prey colonies coordinately evacuate their brood. In principle, caches also allow workers to safely collect multiple-prey items and efficiently transport them to the bivouac. Further field observations are needed to test this and other hypotheses emerging from our study.
e-Learning no Ensino Superior: Competências em TIC e papéis para formadores e formandos
Creators: name: Figueiredo, Miguel
Publisher: name: Medi@ções
Year: 2009

description: As plataformas de e-Learning surgem como sendo um conjunto de ferramentas informáticas que suportam, no todo ou em parte, as novas modalidades de formação a distância que recorrem intensivamente às comunicações proporcionadas pelas redes de computadores. Torna-se essencial prestar atenção ao que passa a ser exigido a formadores e formandos no que se refere às competências necessárias ao uso das tecnologias, sendo importante que os formadores tenham presentes os aspectos pedagógicos que estes novos ambientes de formação introduzem no processo de ensino-aprendizagem.
description: Medi@ções, Vol. 1 N.º 1 (2009): Interligações na produção e na investigação no ensino superior politécnico
What are the Differences between Bayesian Classifiers and Mutual-Information Classifiers?
Creators: name: Hu, Bao-Gang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this study, both Bayesian classifiers and mutual information classifiers are examined for binary classifications with or without a reject option. The general decision rules in terms of distinctions on error types and reject types are derived for Bayesian classifiers. A formal analysis is conducted to reveal the parameter redundancy of cost terms when abstaining classifications are enforced. The redundancy implies an intrinsic problem of "non-consistency" for interpreting cost terms. If no data is given to the cost terms, we demonstrate the weakness of Bayesian classifiers in class-imbalanced classifications. On the contrary, mutual-information classifiers are able to provide an objective solution from the given data, which shows a reasonable balance among error types and reject types. Numerical examples of using two types of classifiers are given for confirming the theoretical differences, including the extremely-class-imbalanced cases. Finally, we briefly summarize the Bayesian classifiers and mutual-information classifiers in terms of their application advantages, respectively.
description: (2nd version: 19 pages, 5 figures, 7 tables. Theorems on Bayesian classifiers are extended to multiple variables. Appendix B for "Tighter bounds between the conditional entropy and Bayesian error in binary classifications" are added, in which Fano's bound is shown numerically to be very tight)
Incident chronic kidney disease risk among hispanics/latinos in the United States: The hispanic community health study/study of latinos (HCHS/SOL)
Creators: name: Franceschini, N.
name: Gonzalez, F., II
name: Lash, J.P.
name: Loop, M.S.
name: Chen, J.
name: Ricardo, A.C.
name: Kramer, H.J.
name: Toth-Manikowski, S.M.
name: Lora, C.M.
name: Daviglus, M.
name: Talavera, G.A.
Publisher: name: American Society of Nephrology
Year: 2020

description: Background: Although Hispanics/Latinos in the United States are often considered a single ethnic group, they represent a heterogenous mixture of ancestries who can self-identify as any race defined by the U.S. Census. They have higher ESKDincidence compared with non-Hispanics, but little is known about the CKD incidence in this population. Methods: We examined rates and risk factors of new-onsetCKDusing data from 8774 adults in the Hispanic Community Health Study/Study of Latinos. Incident CKD was defined as eGFR <60 ml/min per 1.73 m2 with eGFR decline ≥1 ml/min per 1.73 m2 per year, or urine albumin/creatinine ratio ≥30 mg/g. Rates and incidence rate ratios were estimated using Poisson regression with robust variance while accounting for the study's complex design. Results: Mean age was 40.3 years at baseline and 51.6% were women. In 5.9 years of follow-up, 648 participants developed CKD (10.6 per 1000 person-years). The age- and sex-adjusted incidence rates ranged from 6.6 (other Hispanic/mixed background) to 15.0 (Puerto Ricans) per 1000 person-years. Compared with Mexican background, Puerto Rican background was associated with 79% increased risk for incident CKD (incidence rate ratios, 1.79; 95% confidence interval, 1.33 to 2.40), which was accounted for by differences in sociodemographics, acculturation, and clinical characteristics. In multivariable regression analysis, predictors of incident CKD included BP >140/90 mm Hg, higher glycated hemoglobin, lower baseline eGFR, and higher baseline urine albumin/creatinine ratio. Conclusions: CKD incidence varies by Hispanic/Latino heritage and this disparitymay be in part attributed to differences in sociodemographic characteristics. Culturally tailored public heath interventions focusing on the prevention and control of risk factors might ameliorate the CKD burden in this population.
Editorial Agronomía Tropical 2016
Creators: name: Rosales-Amado, Ligia Carolina
Publisher: name: Zenodo
Year: 2016
Subjects: Venezuela

description: La comunicación científica, en los últimos tiempos, ha logrado que la información que se genera en el proceso de investigación pueda ser difundida a sus pares, nacional e internacionalmente de forma inmediata. En sus orígenes, la difusión de los hallazgos científicos involucraba una elite que producía la información y un sector cautivo mayoritario se concentraba en ser receptor de esos conocimientos. Con el pasar de los años, la comunicación unidireccional ha evolucionado a una comunicación participativa que involucra a todos los actores del proceso, desde los investigadores hasta los beneficiarios finales; esto ha favorecido el desarrollo de innumerables publicaciones que reciben contribuciones de científicos de gran trayectoria, así como de investigadores noveles que inician su carrera en el maravilloso mundo de los descubrimientos y las innovaciones.
Efficient 2D image segmentation
Creators: name: Graham-Knight, John Brandon
Publisher: name: University of British Columbia
Year: 2020

description: Image segmentation is a popular topic enabled by rapid advances in neural network processing. There is also a trend towards computational efficiency in segmentation algorithms, brought about by economic and environmental interests, and often acutely motivated by constraints in how the solutions are deployed. Recent exploration of neural network computational efficiency has largely focused on the depth and width of the network, as well as image size. Ensembling and gradient boosting are two well-known methods for increasing performance through a collection of smaller networks. Ensembling is used when different models produce largely uncorrelated predictions; the combination of these predictions reduces overall error. Gradient boosting produces correlated models such that the sum of their losses is minimized; successive models are trained using the residual loss of previous models, with each new learner correcting mistakes of past learners. This thesis seeks to explore the scalability and efficiency of image segmentation neural networks by including the techniques of ensembling and gradient boosting. The approach is evaluated on both the Severstal Steel Defect Detection and Kidney Tumor Segmentation datasets, though it could easily be applied to any two-dimensional image segmentation task. The final boosted model produces results comparable to the baseline in 5 of the 6 evaluated classes, while using only 2.5% of the trainable parameters. The success of the approach has significant implications for deployed applications; not only is the overall network much smaller, the miniature sub-networks can each be calculated independently and aggregated with simple addition and averaging. This introduces a real possibility for efficient distributed inferencing, decoupling performance from the maximum size calculable by a single piece of hardware.
appendix_4_downscaled_results.pdf from Temporary prey storage along swarm columns of army ants: an adaptive strategy for successful raiding?
Creators: name: Póvoas de Lima, Hilário
name: Teseo, Serafino
name: Leite Castro de Lima, Raquel
name: Souza Ferreira-Châline, Ronara
name: Châline, Nicolas
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: While pillaging the brood of other ant colonies, Eciton army ants accumulate prey in piles, or caches, along their foraging trails. Widely documented, these structures have historically been considered as by-products of heavy traffic or aborted relocations of the ants' temporary nest, or bivouac. However, we recently observed that caches of the hook-jawed army ant, Eciton hamatum, appeared independently from heavy traffic or bivouac relocations. In addition, the flow of prey through caches varied based on the quantity of prey items workers transported. As this suggested a potential adaptive function, we developed agent-based simulations to compare raids of caching and non-caching virtual army ants. We found that caches increased the amount of prey that relatively low numbers of raiders were able to retrieve. However, this advantage became less conspicuous—and generally disappeared—as the number of raiders increased. Based on these results, we hypothesize that caches maximize the amount of prey that limited amounts of raiders can retrieve, especially as prey colonies coordinately evacuate their brood. In principle, caches also allow workers to safely collect multiple-prey items and efficiently transport them to the bivouac. Further field observations are needed to test this and other hypotheses emerging from our study.
title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð´ÐµÐ»ÑÑÐ°-ÑÐ¸Ð³Ð¼Ð° Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¾ÑÐ¾Ð² ÐºÐ°ÑÐºÐ°Ð´Ð½Ð¾Ð¹ Ð°ÑÑ Ð¸ÑÐµÐºÑÑÑ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: Research delta-sigma modulators in cascade architecture
Creators: name: Ð¡Ð°Ð²ÑÑÑÐºÐ¸Ð½, ÐÐ½ÑÐ¾Ð½
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: 2021
Subjects: Ð°Ð½Ð°Ð»Ð¾Ð³Ð¾-ÑÐ¸ÑÑÐ¾Ð²Ð¾Ð¹ Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»Ñ
Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÐµÐ¹
Ð´ÐµÐ»ÑÑÐ°-ÑÐ¸Ð³Ð¼Ð° Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¾Ñ
SMASH Ð¸ MASH Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¾ÑÑ
analog to digital converter
characteristics of converters
delta-Sigma modulators
oversampling
multistage modulators
SMASH and MASH modulators

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¼Ð½Ð¾Ð³Ð¾ÐºÐ°ÑÐºÐ°Ð´Ð½ÑÑ ÑÑÑÑÐºÑÑÑ Ð´ÐµÐ»ÑÑÐ°-ÑÐ¸Ð³Ð¼Ð° Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¾ÑÐ¾Ð² MASH Ð¸ SMASH ÑÐ¸Ð¿Ð°. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð¸ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÑÐ¸Ð¿Ñ ÐÐ¦Ð, Ð¸Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸. ÐÐ¾Ð»ÐµÐµ Ð¿Ð¾Ð´ÑÐ¾Ð±Ð½Ð¾ Ð¾Ð¿Ð¸ÑÐ°Ð½ Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿ ÑÐ°Ð±Ð¾ÑÑ Ð´ÐµÐ»ÑÑÐ°-ÑÐ¸Ð³Ð¼Ð° Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¾ÑÐ°, ÐµÐ³Ð¾ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸, Ð¿ÑÐµÐ¸Ð¼ÑÑÐµÑÑÐ²Ð° Ð¸ Ð½ÐµÐ´Ð¾ÑÑÐ°ÑÐºÐ¸. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ ÑÐ¿Ð¾ÑÐ¾Ð±Ñ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð´Ð°Ð½Ð½ÑÑ ÑÑÑÑÐ¾Ð¹ÑÑÐ² Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ Ð¸Ñ Ð¿Ð¾ÑÑÐ´ÐºÐ°, Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ñ Ð±Ð°Ð·Ð¾Ð²ÑÐµ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÐ°ÐºÐ¸Ñ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¾ÑÐ¾Ð². ÐÐ¾Ð´ÑÐ¾Ð±Ð½Ð¾ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð° ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð½Ð¾Ð³Ð¾ÐºÐ°ÑÐºÐ°Ð´Ð½Ð¾Ð³Ð¾ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¾ÑÐ° MASH, Ð° ÑÐ°ÐºÐ¶Ðµ ÐµÐ³Ð¾ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ SMASH, ÐºÐ¾ÑÐ¾ÑÐ°Ñ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ, ÑÐ¾ÑÑÐ°Ð½Ð¸Ð² Ð¿ÑÐµÐ¸Ð¼ÑÑÐµÑÑÐ²Ð° Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÑÑÑÐºÑÑÑÑ, ÑÐ°ÑÑÐ¸ÑÐ½Ð¾ ÑÐºÐ¾Ð¼Ð¿ÐµÐ½ÑÐ¸ÑÐ¾Ð²Ð°ÑÑ ÐµÐµ Ð½ÐµÐ´Ð¾ÑÑÐ°ÑÐºÐ¸. ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð´Ð°Ð½Ð½ÑÑ ÑÑÑÑÐ¾Ð¹ÑÑÐ² Ð½Ð° ÑÑÐ½ÐºÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð¼ ÑÑÐ¾Ð²Ð½Ðµ Ð¸ ÑÑÐµÐ¼Ð¾ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð¼ ÑÑÐ¾Ð²Ð½Ðµ.
description: This work is devoted to the study of multistage structures of delta-sigma modulators MASH and SMASH type. As a result of the work, the main types of ADCs and their characteristics were considered. The principle of operation of the delta-sigma modulator, its features, advantages and disadvantages, is described in more detail. Methods for increasing the efficiency of these devices by increasing their order are considered, basic implementations of such modulators are presented. The operation of the multistage modulator MASH is described in detail, as well as its modification SMASH, which allows, while retaining the advantages of this structure, to partially compensate for its disadvantages. The simulation of these devices at the functional level and circuitry level has been carried out.
SN and BAO constraints on (new) polynomial dark energy parametrizations: current results and forecasts
Creators: name: Sendra, Irene
name: Lazkoz, Ruth
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this work we introduce two new polynomial parametrizations of dark energy and explore their correlation properties. The parameters to fit are the equation of state values at z=0 and z=0.5, which have naturally low correlation and have already been shown to improve the popular Chevallier-Polarski-Linder (CPL) parametrization. We test our models with low redshift astronomical probes: type Ia supernovae and baryon acoustic oscillations (BAO), in the form of both current and synthetic data. Specifically, we present simulations of measurements of the radial and transversal BAO scales similar to those expected in a BAO high precision spectroscopic redshift survey similar to EUCLID. According to the Bayesian deviance information criterion (DIC), which penalizes large errors and correlations, we show that our models perform better than the CPL re-parametrization proposed by Wang (in terms of z=0 and z=0.5). This is due to the combination of a lower correlation and smaller relative errors. The same holds for a frequentist perspective: our Figure-of-Merit is larger for our parametrizations.
description: accepted in MNRAS, some corrections included
La piattaforma didattica come strumento per la differenziazione nel ciclo di osservazione SM della disciplina matematica
Creators: name: Oehen, Fabian
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2017

description: Le piattaforme didattiche (OpenCampus, Moodle, Educanet2, ecc…) sono nelle formazioni di grado superiore ormai una realtà ben consolidata. Tuttavia il loro utilizzo all’interno delle scuole medie ticinesi è al momento ancora limitato. Il presente lavoro descrive l’esperienza pratica fatta con una classe di seconda media, nella quale è stata utilizzata (nell’aula informatica) la piattaforma didattica OpenCampus per svolgere degli eserciziari nell’ottica di una differenziazione pedagogica nella disciplina matematica. Successivamente sono stati anche impiegati dei tablet (nell’aula di matematica) per svolgere due attività interattive. Queste attività presentavano problemi complessi che gli studenti dovevano risolvere aiutandosi (se necessario) con aiuti e materiali teorici messi a disposizione. L’effetto scaffolding è emerso in modo marcato nell’analisi dei risultati degli eserciziari pubblicati sulla piattaforma didattica OpenCampus. Infatti l’analisi ha mostrato che il 74% degli allievi che hanno ripetuto un eserciziario ha avuto un miglioramento. Gli eserciziari sulla piattaforma didattica e le due attività interattive hanno creato in loro una curiosità tale da incrementare maggiormente la motivazione e l’entusiasmo nell’affrontare la lezione. Il questionario qualitativo ha confermato l’apprezzamento da parte degli allievi riguardo all’impiego di tali strumenti a lezione. Materia: tecnologie dell'informazione e della comunicazione (TIC), matematica
Producing an explanatory proof in a 9TH grade classroom
Creators: name: Rodrigues, Margarida
Publisher: name: Medi@ções
Year: 2009

description: This paper presents part of a study that deals with the problem of proof in schol-arly mathematics. It describes the way in which four students in 9th grade explored a task related to the discovery of symmetry axes in various geometric figures. The proof constructed by them had essentially an explanatory function. The teacher’s role in meaning negotiation of proof and its need is also analysed. One outcome discussed here is that students develop first a practical understanding with no awareness of the reasons underlying mathematical statements and after a theoretical one leading them to a construction of proof.
description: Medi@ções, Vol. 1 N.º 1 (2009): Interligações na produção e na investigação no ensino superior politécnico
The immune aspects of physical exercise and photopheresis to ameliorate the adverse effects of stem cell transplantation
Creators: name: Nguyen, Uyen Ngoc Thao
Publisher: name: University of British Columbia
Year: 2020

description: Hematopoietic stem cell transplantation (HSCT) is a curative treatment for a number of hematologic disorders. Unfortunately, HSCT can lead to immune complications including graft-versus-host disease (GvHD). Current methods to minimize immune complications are not effective in many patients leading to significant morbidity. Exercise can influence components of the immune system. One clinical trial in allogeneic HSCT patients showed that exercise is safe, has a positive effect on lymphocyte count post-transplant, and can improve patient outcomes. Yet current clinical practices do not reflect this evidence. As part of a randomized controlled trial examining the effects of exercise on quality of life, physical functioning, and immune reconstitution in HSCT patients post-transplant, I performed high-dimensional immunophenotyping and compared the immune composition of patients who exercised (intervention) to those who did not (control). I found that while both groups have similar proportions of major innate and adaptive immune populations, the intervention group had higher proportions of Ki-67⁺ innate lymphoid type 2 cells, elevated frequencies of CD45RA⁺ CD3 and CD8 T cells, and lower proportions of PD-1⁺Tim-3⁺ CD4 T cells. Overall, exercise had anti-immunosenescence effects in HSCT patients. Furthermore, Eomes⁺GATA-3⁺CD56⁺CCR6⁺ innate cells were absent in the exercise group. Meanwhile, another immunomodulatory strategy that may improve patient outcomes is extracorporeal photopheresis (ECP), which aims to induce peripheral tolerance in patients with steroid-refractory or dependent chronic GvHD by depleting alloreactive T cells while sparing regulatory T cells. In a clinical trial assessing the effects of ECP with a novel photosensitizer molecule, TH9402 (CARE trial), I analysed immunophenotyping data and found that this therapy increased the counts of CD57⁺CD45RA- senescent CD4 T cells, HLA-DR⁺ activated CD4 T cells, CD56bright NK cells, and plasmacytoid dendritic cells in most study participants. While the observed immune effects and the extent of the response were heterogeneous among patients, overall, ECP with TH9402 induces a tolerogenic environment in patients with steroid- refractory or dependent chronic GvHD.
Towards Initial Mass Functions for Asteroids and Kuiper Belt Objects
Creators: name: Cuzzi, Jeffrey N.
name: Hogan, Robert C.
name: Bottke, William F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Our goal is to understand primary accretion of the first planetesimals. The primitive meteorite record suggests that sizeable planetesimals formed in the asteroid belt over a period longer than a million years, each composed entirely of an unusual, but homogeneous, mixture of mm-size particles. We sketch a scenario in which primary accretion of 10-100km size planetesimals proceeds directly, if sporadically, from aerodynamically-sorted mm-size particles (generically "chondrules"). These planetesimal sizes are in general agreement with the currently observed asteroid mass peak near 100km diameter, which has been identified as a "fossil" property of the pre-erosion, pre-depletion population. We extend our primary accretion theory to make predictions for outer solar system planetesimals, which may also have a preferred size in the 100km diameter range. We estimate formation rates of planetesimals and assess the conditions needed to match estimates of both asteroid and Kuiper Belt Object (KBO) formation rates. For nebula parameters that satisfy observed mass accretion rates of Myr-old protoplanetary nebulae, the scenario is roughly consistent with not only the "fossil" sizes of the asteroids, and their estimated production rates, but also with the observed spread in formation ages of chondrules in a given chondrite, and with a tolerably small radial diffusive mixing during this time between formation and accretion (the model naturally helps explain the peculiar size distribution of chondrules within such objects). The scenario also produces 10-100km diameter primary KBOs. The optimum range of parameters, however, represents a higher gas density and fractional abundance of solids, and a smaller difference between keplerian and pressure-supported orbital velocities, than "canonical" models of the solar nebula. We discuss several potential explanations for these differences.
description: Icarus, in press
Table S1.pdf from Temporary prey storage along swarm columns of army ants: an adaptive strategy for successful raiding?
Creators: name: Póvoas de Lima, Hilário
name: Teseo, Serafino
name: Leite Castro de Lima, Raquel
name: Souza Ferreira-Châline, Ronara
name: Châline, Nicolas
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: While pillaging the brood of other ant colonies, Eciton army ants accumulate prey in piles, or caches, along their foraging trails. Widely documented, these structures have historically been considered as by-products of heavy traffic or aborted relocations of the ants' temporary nest, or bivouac. However, we recently observed that caches of the hook-jawed army ant, Eciton hamatum, appeared independently from heavy traffic or bivouac relocations. In addition, the flow of prey through caches varied based on the quantity of prey items workers transported. As this suggested a potential adaptive function, we developed agent-based simulations to compare raids of caching and non-caching virtual army ants. We found that caches increased the amount of prey that relatively low numbers of raiders were able to retrieve. However, this advantage became less conspicuous—and generally disappeared—as the number of raiders increased. Based on these results, we hypothesize that caches maximize the amount of prey that limited amounts of raiders can retrieve, especially as prey colonies coordinately evacuate their brood. In principle, caches also allow workers to safely collect multiple-prey items and efficiently transport them to the bivouac. Further field observations are needed to test this and other hypotheses emerging from our study.
Tracking DAergic Neuron Ablation and Regeneration in the Brain of Adult Zebrafish
Creators: name: Abu Setah, Samy
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Nifurpirinol
proliferation
neural stem cells
neurons

description: As the prevalence of Parkinson’s disease is expected to increase gradually over the years based on recent scientific predictions, developing a treatment plan to mitigate the development of this disease is essential. Previous research tried to tackle the motor and non-motor symptoms associated with the disease. That said, some symptoms seem to persist, and the quality of life of PD patients continues to decline. Zebrafish have emerged as a strong model to study the regeneration of DAergic neurons as they have the ability to show robust adult neurogenesis. Here, we used adult zebrafish to investigate DAergic neuron regeneration following ablation in various brain regions. In addition, we tested the efficacy of Nifurpirinol, an alternative substrate to MTZ, in ablating DAergic neurons in the adult zebrafish brain. Lastly, we tracked how the ablation of DAergic neurons influences the motor activity of adult zebrafish and how they tend to recover over time. Results showed a significant reduction in DAergic neurons at 7 days following the MTZ treatment in the olfactory bulb, telencephalon, and the periventricular pretectal nucleus. NFP also caused similar changes, albeit they were less statistically significant. In response to ablated DAergic neurons, MTZ-treated fish showed a significant increase in the number of neural stem cells undergoing proliferation at 1 dpt. However, the highest spike in proliferative cells, especially neural stem cells, was found at 7 dpt. This time point corresponded with the greatest decrease in DAergic neurons following ablation. These cellular changes were observed in the olfactory bulb and the telencephalon. That said, more drastic changes were noticed in the rostral and medial telencephalon. Results also showed that the adult zebrafish brain was not able to significantly replenish the number of DAergic neurons as early as 15 dpt. Based on previous observations, it seems that adult zebrafish need at least 45 days to regenerate their DAergic neurons to levels comparable to the DMSO control. Lastly, behaviour analysis showed that NFP has the most significant impact on motor activity across three different parameters at 0 hpt. MTZ also had similar effects on motor activity; however, it was less pronounced. The impact on the behaviour level seems more transient as some recovery was observed at 7 dpt. Overall, this transgenic zebrafish line allowed us to explore how and when the adult zebrafish brain was able to efficiently recover following the specific ablation of DAergic neurons. In addition, it expanded our understanding of adult neurogenesis which will hopefully allow us to better approach patients with Parkinson’s disease.
Genetics of kidney traits in worldwide populations: the Continental Origins and Genetic Epidemiology Network (COGENT) Kidney Consortium
Creators: name: Morris, A.P.
name: Franceschini, N.
Publisher: name: Elsevier B.V.
Year: 2020

description: We describe our collaborative efforts to increase representation of diverse populations in genomic research of kidney phenotypes to fill an unmet need to further understanding of the genetic contribution to chronic kidney disease (CKD) across the globe. These efforts led to the creation of the Continental Origins and Genetic Epidemiology Network Kidney (COGENT-Kidney) Consortium, focused on developing statistical methods for the analysis of genome-wide association studies (GWAS) across diverse populations and their application to renal traits and CKD. Resources generated within the consortium will provide a framework for future studies of genetic risk of CKD in worldwide populations. Our intent is to foster collaborations for studies of populations that are underrepresented in GWAS, increase awareness of the challenges and opportunities in studying these populations, and promote more genomic research across increasingly diverse populations.