Search results for "9(46)"

Vēsture: Latvijas Universitātes Žurnāls, Nr.11/12

2021

Interface enhancement of Gilbert damping from first-principles

2014

The enhancement of Gilbert damping observed for Ni_{80}Fe_{20} (Py) films in contact with the nonmagnetic metals Cu, Pd, Ta, and Pt is quantitatively reproduced using first-principles scattering calculations. The "spin-pumping" theory that qualitatively explains its dependence on the Py thickness is generalized to include a number of extra factors known to be important for spin transport through interfaces. Determining the parameters in this theory from first principles shows that interface spin flipping makes an essential contribution to the damping enhancement. Without it, a much shorter spin-flip diffusion length for Pt would be needed than the value we calculate independently.

"Table 1" of "Search for promptly produced heavy quarkonium states in hadronic Z decays"

1996

The analysis of hadrons (from X) provides to distinguish of the various decay modes of Z-boson (see text).

Effect of inoculation with selected Bradyrhizobium spp. on the survival and growth of Acacia mangium saplings after 20 months in the field

1999

This work was designed to test the long-term effect of the inoculation of #Acacia mangium# seedlings with 10 selected strains of #Bradyrhizobium spp.#. The percentage of survival of seedlings inoculated with any of the #Bradyrhizobium# strains was increased by 10% as compared to the control plants. However, out of the 10 #Bradyrhizobium# strains tested, only 3 strains, Aust l3c, Lu 4 and Tel 8, belonging to the phylogenelic group 1, significandy enhanced the growth of #A. mangium# after 20 months in the field. For the first time, inoculation with indigenous Malaysian strains #Bradyrhizobium# such as Tel 8 and Lu 4 at the seedling stage is reported to produce enhanced and sustained growth an…

An Anthropological Insight on the Commonalities between Tourism and Archaeology

2019

Over the years, archaeology maturated towards something else than a scientific discipline. Archaeological sites are culturally showed as emerging and recycled tourist attractions (Robb 1998; Bateman 2006; Rowan & Baram 2004; Karlsson & Gustafsson, 2006). At a closer look, tourism is understood as a leisure activity which is enrooted in the needs of relaxing and evasion while archaeology -as a knowledge platform which is based on scientific method- explores the history of ancient cultures. This raises a more than interesting question respecting the commonalities and differences between archaeology and tourism. To some extent, archaeologists find ancient relics and objects whi…

Virtual Tours as Emerging Technologies to Engage Children and Youth with their Country’s Historical Conflicts

2022

Virtual Reality (VR) is increasingly used for visiting historic places. Research on VR experiences in dark tourism (that focuses on mortality) focuses almost exclusively on adults. No studies were found that used virtual tours to engage children with their own country’s conflicts. The present study addresses this gap by designing and developing virtual tours in four cities of Europe with a troubled past. Virtual tours engage children and youth in historical conflicts using multi-perspective storytelling. The aim of this pre-test post-test comparative case study is to examine the change on students’ perceptions of their country’s troubled past after their interaction with a virtual tour of t…

"Table 2" of "Measurement of inclusive differential cross sections for Upsilon(1S) production in p anti-p collisions at s**(1/2) = 1.96-TeV"

2005

Normalized differential cross section for UPSI(1S) production.. Errors contain statistical and systematics (excluding luminosity error).

"Table 1" of "Measurement of inclusive differential cross sections for Upsilon(1S) production in p anti-p collisions at s**(1/2) = 1.96-TeV"

2005

Cross section per unit of rapidity times branching ratio to MU+ MU-. Systematic (DSYS) error does not include the 6.1 PCT uncertainty on the luminosity.

Zvaigžņotā Debess: 2006, Vasara

2006

Latvijas Zinātnes padome, Latvijas Universitāte

Tracing multisensory food experiences on Twitter

2021

How a food, or a dish, is named and how its components and attributes are described can all influence the perception and the enjoyment of the food. Therefore, tracing patterns in food descriptions and determining their role can be of value. The aims of this study were the following: (1) to describe the multisensory food experience as represented in microblog entries concerning food and drink on Twitter, (2) to provide an overview of the changes in the above-mentioned food representations during the period 2011‐20, and (3) to contribute to a broader understanding of the human‐food relationship as reflected on social media ‐ in this case Twitter ‐ and outline its potential utility for the res…