Oxygen non-stoichiometry and defect structure of LaMn1-zCuzO3+δ

The quantitative model analysis of the defect structure of copper doped lanthanum manganites LaMn1-zCuzO3+δ (z = 0.05 and 0.1) was performed. In the framework of the model, the independent course of the three reactions of defect formation, including the electronic exchange between manganese and copper, completion of a lattice by the absorption of oxygen and the disproportionation of manganese was considered. It is shown that the increase in the dopant content leads to a change in the dominant electronic process. This is reflected in the lock and disproportionation and leads to the increase in the concentration of holes and decrease the concentration of electrons localized on the manganese atoms

Picturing the cosmos. A visual history of early Soviet space endeavour

info:eu-repo/semantics/acceptedVersio

High-rise urban density in Macau

China is the epicentre of tall-building construction globally. Its ambition in creating vertical urban iconography is spreading from the rich first-tier cities, such as Shanghai and Beijing to the interior, though this is not a new process. The skyscraper has been present in the Shanghai skyline since the end of the 1920s, representing the cosmopolitan spirit of the city, and later its financial power.info:eu-repo/semantics/acceptedVersio

Digital afterlife: (eco)civilizational politics of the site and the sight of e-waste in China

This article aims to examine the ongoing changes in ‘green politics’ in China by focusing on the example of e-waste recycling and, specifically, transformations in one given town, Guiyu. It is argued that the spontaneous stage of development in e-waste recycling in Guiyu has become the object of civilizational politics, which includes the formalization, centralization and spatial and visual evolution of the recycling site. Civilizational politics is conceptualized as an approach towards adapting to the existing socio-technical conditions and the introduction of a new infrastructural regime, which is discursively framed as a civilized one: modern, environmentally friendly and socially beneficial. The ‘informal’ sector in e-waste recycling is the main target of civilizational politics, as it is associated with ‘low-tech’ and polluting technologies and small-scale enterprises powered by migrant labour. While the target of civilizational politics is upscaling via the creation of large, centralized, ‘formal’ facilities, the social and environmental sustainability of such a transition should be questioned.info:eu-repo/semantics/acceptedVersio

Temporary transnational labour mobility and gendered individualization in Europe

In a context of a new transnational division of labour, temporary international labour mobility is on the rise in Europe. In particular, recent decades have seen considerably more women seeking work experience abroad. Observers have been concerned with how such mobility is related to individualization, and in particular how it may challenge collective institutions, communities and families. The aim of this study is to explore such issues among women and men with international work experience. Using data from European Social Survey, the paper investigates previously mobile workers in terms of their current working and living conditions. Across genders, we consider different forms of individualization that may be associated with transnational labour mobility. While both women and men with transnational work experience generally feature strong strategic individualization, this is most pronounced among men. Hence, men's mobility is among other things associated with increased autonomy in working life, while–in contrast to women–it does not seem to hamper their integration in the sphere of social reproduction.info:eu-repo/semantics/publishedVersio

Visual sociology

The article offers an overview of the field of visual sociology. It examines the areas where visu- al sociology can provide an insightful perspective for the study of social reality and serves as an imagina- tive tool to work with a variety of research subjects. It outlines some specific methods for working with visual data and focuses on a few of the many fields where visual sociological methods can fruitfully be applied, such as the study of cities, public events and new media.info:eu-repo/semantics/publishedVersio

Anxious immobilities: an ethnography of coping with contagion (Covid-19) in Macau

In February 2020, Macau became one of the first regions where the pandemic of coronavirus or Covid-19 affected the totality of social and economic life leading to increased anxieties over movement and distance. Although Macau has had very few actual cases of the virus–46 in total–and no deaths from it, the Macau government rapidly instituted a lockdown. The aim of this article is to reflect on how the social experience of being in lockdown can provide insights into understanding the type of experience or condition that we provisionally term ‘anxious immobility.’ Such a condition is characterized by a total disruption of everyday rhythms and specifically anxious waiting for the normalization of activity while being the subject of biosocial narratives of quarantine and socially responsible. The paper is based upon 3 months of ethnographic research conducted by two researchers based in Macau. We also reflect upon some aspects of the politics of mobilities in the light of disruptions and friction points between Hong Kong, Macau, mainland China, and the rest of the world.info:eu-repo/semantics/publishedVersio

Thermoelectric and Magnetothermoelectric Transport Measurements of Graphene

The conductance and thermoelectric power (TEP) of graphene is simultaneously measured using microfabricated heater and thermometer electrodes. The sign of the TEP changes across the charge neutrality point as the majority carrier density switches from electron to hole. The gate dependent conductance and TEP exhibit a quantitative agreement with the semiclassical Mott relation. In the quantum Hall regime at high magnetic field, quantized thermopower and Nernst signals are observed and are also in agreement with the generalized Mott relation, except for strong deviations near the charge neutrality point

A combined Raman lidar for low tropospheric studies

One of the main goals of laser sensing of the atmosphere was the development of techniques and facilities for remote determination of atmospheric meteorological and optical parameters. Of lidar techniques known at present the Raman-lidar technique occupies a specific place. On the one hand Raman lidar returns due to scattering on different molecular species are very simple for interpretation and for extracting the information on the atmospheric parameters sought, but, on the other hand, the performance of these techniques in a lidar facility is overburdened with some serious technical difficulties due to extremely low cross sections of Raman effect. Some results of investigations into this problem is presented which enables the construction of a combined Raman lidar capable of acquiring simultaneously the profiles of atmospheric temperature, humidity, and some optical characteristics in the ground atmospheric layer up to 1 km height. The operation of this system is briefly discussed