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Developing and testing a PM2.5 low-cost sensor in Ethiopia under ambient and indoor air pollution conditions

PM2.5 low-cost sensors are a promising trend for low-income countries, where the PM2.5 associated burden of disease is high and few measurement instruments are available. Commercially available Sensor Systems (SSys) are relatively affordable and easy to use. They are, however, not designed for or evaluated in contexts characterized by much biomass burning, regular power interruptions and/or low in

Using student science to identify research priority areas for air pollution in a university environment : an Ethiopian case study

Students in a country like Ethiopia face a double air pollution challenge: they are frequently exposed (both outdoors and indoors) to sources of incomplete combustion and therefore to unhealthy concentrations of particulate matter (PM2.5) and carbon monoxide (CO), while they also face increased carbon dioxide (CO2) concentrations in crowded dormitories and classrooms. Research on air pollution in

Roadside PM2.5 concentrations measured with low-cost sensors and student science in Arba Minch, Ethiopia

Exposure to PM2.5 poses one of the biggest health threats, with traffic and biomass burning as dominant sources in urban areas of low-income countries. In Ethiopia, the combination of these two sources suggests a high roadside exposure. Because of a lack of resources for data collection, only few studies were conducted on roadside exposure in Ethiopia. Using low-cost sensors and student science co

An evaluation of best practices in an air quality student science project in Ethiopia

A science project as part of a student’s curriculum, which we call student science, might be the answer to two problems for a low-income country like Ethiopia: conventional science can be expensive and many students lack training in practical skills. Earlier studies have been conducted with respect to lay people (citizens or students) conducting (parts of) research (e.g. citizen science), but rare

Historia och nationalism : Sverigedemokraternas och Dansk Folkepartis historiska berättelser

This thesis studies the relationship between history and nationalism as expressed by the political parties the Sweden Democrats and the Danish People's Party. The study focuses on how the Sweden Democrats and the Danish People's Party convey historical narratives in their party magazines, SD-Kuriren and Dansk Folkeblad, respectively, and in central party documents. The narrative theory being imple

Political uses of the Viking Age : The Sweden Democrats and the Danish People’s Party

This chapter explores how the two contemporary political parties, the Sweden Democrats and the Danish People’s Party, use the Vikings and the Viking Age as symbols in their national mythmaking. It examines the political dimensions of public history and the way in which these parties draw historical parallels between the Viking Age and the present in order to call for action. The relationship betweThis chapter explores how the two contemporary political parties, the Sweden Democrats and the Danish People’s Party, use the Vikings and the Viking Age as symbols in their national mythmaking. It examines the political dimensions of public history and the way in which these parties draw historical parallels between the Viking Age and the present in order to call for action. The relationship betwe

Cross-Sections : Historical Perspectives from Malmö University

The anthology Cross-Sections: Historical Perspective from Malmö University contains contributions from researchers sharing historical perspectives, but representing different disciplines, such as arts, ethnography, history, literature studies, religion and sports science. The seventeen contributions clearly demonstrate the breadth and diversity of historical research carried out in different depar

A registry-based study on universal screening for defective mismatch repair in colorectal cancer in Denmark highlights disparities in screening uptake and counselling referrals

Universal screening for defective mismatch repair (dMMR) in colorectal cancer utilizes immunohistochemical staining for MLH1, MSH2, MSH6 and PSM2. Additionally, BRAF V600E mutations status and MLH1 hypermethylation should be performed to distinguish germline and somatic dMMR alterations. A decade of Danish population-based registries has been analysed regarding screening uptake, detection rate and

Evaluation of Improved Imaging Properties with Tungsten-Based Parallel-Hole Collimators: A Monte Carlo Study

Objectives The purpose of a parallel-hole collimator in a scintillation camera system is to transmit only those photons that have an emission angle close to the direction of the hole. This makes it possible to receive spatial information about the origin of the emission, that is, radioactivity decay. The dimension, shape, and intrahole thickness determine the spatial resolution and, by a tradeoff,

Impact of Wolfmet Tungsten Alloys as Parallel-Hole Collimator Material on Single-Photon Emission Computed Tomography Image Quality and Functional Parameters : A Simulating Medical Imaging Nuclear Detectors Monte Carlo Study

Objectives Collimators have a significant role in image quality and detectability in single-photon emission computed tomography (SPECT) imaging. Using an appropriate alloy that effectively absorbs scattered photons, without induced secondary x-rays, and with proper rigidity and weight may provide an effective approach to the image improvement that conventionally collimators made of lead (Pb). Mate