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The infrastructure for the third generation of mobile telephony, UMTS, is under construction in Sweden. Within three years four operators were to build competing systems to cover 99,98 % of the population. The case of the 3G infrastructure illustrates how the sustainability issues are handled in planning and environmental management, with conflicting goals between institutional levels and compet
Droplet microfluidics is a powerful method to characterize chemical reactions at high throughput. Often detection is performed via in-line optical readout, which puts high demands on the detection system and makes detection of low concentration substrates challenging. Here, we have developed a droplet acoustofluidic chip for time-controlled microbead-based reactions that is combined with off-line
The breakup of the L-chondrite parent body (LCPB) in the asteroid belt at 466 Ma ago is the largest asteroid breakup documented in Earth's geological record for the past ca. three billion years. Recovery of abundant macroscopic fossil L chondrites in mid-Ordovician marine sediments as well as reconstructions of the flux of micrometeoritic chrome spinel through the ages have given much new informat
Översiktlig artikel om hur spanska sjukan 1918 drabbade Lunds universitet och särskilt dess studenter samt om hur vissa professorer i medicin förhöll sig till den nya smittan.
Objective: Family members of a person with drug addiction often experience negative impacts on their lives and face barriers to seeking professional support. More knowledge is needed about such barriers so they can be reduced. This article examines the help-seeking experiences of parents of adult children with drug addiction, a group that has received little attention in research. Method: We condu
All assessments are events within a process that has the goal of making decisions about instruction, learning, curriculum, students, institutions, and consequences. Three underlying disciplines (i.e., psychometrics, psychology, and sociology) inform the evaluation of assessments. Error is ubiquitous in the selection of tasks that constitute an assessment, the administration, marking, reporting, an
En teknik för att förhindra yterosion och samla ytavrinning är bygga jordvallar (1–1,5 m höga) parallellt medhöjdkurvorna. Denna teknik används över stora områden i Tunisien. I denna studie undersöks hur dessa jord-vallar påverkar ytjordens rumsliga variabilitet av markvattenhalt (θ) och salinitet, dels uttryckt som jordenstotala elektriska konduktivitet (σa) och dels som porvattnets elektriska koOne technique for collecting rainwater and prevent soil erosion applied on large areas in Tunisia involves theuse of soil ridges (1–1.5 m high). These contour ridges are constructed parallel to topographical isolines. Theeffects of the contour ridges on the soil water content (θ) distribution, bulk soil salinity σa, and soil water salin-ity (σw) were investigated in the catchment of El-Gouazine in
Epidemics and pandemics are associated with a variety of life-threatening conditions and have serious effects on physical as well as mental wellbeing. The Covid-19 pandemic raised the same difficulties for public and private sectors including schools, businesses, healthcare sectors, etc. The disease, which originated in Wuhan, China in December 2019, has ravaged nearly every country in the world.
Influencers befinner sig i epicentrum av digitalisering och motstridiga arbetsideal. En industrikapitalistisk idealisering av (manligt) lönearbete dröjer sig kvar, men utmanas av en nyliberal (postfeministisk) tilltro till individens (inte minst kvinnans) drivkraft att som entreprenör styra livet mot framgång och lycka. Här undersöks hur tolv kvinnliga mikro-influencers förhåller sig till könade nThe feminine-coded work as an influencer has emerged as young women have transformed their personal life stories and self- representations on social media into digital businesses. Despite similarities with other forms of media production, the concept of work is vague, both in the public’s perception of what influencers do and for influencers themselves. It is challenging to differentiate between w
This paper discusses the role of mathematics in physics teaching and learning. The intention and strength of science is to describe what happens in the realworld by organizing explanations through theories and theoretical models. It has been widely suggested that learning in science is influenced by views about the nature of scientific knowledge. Furthermore, mathematics is an inherent part of the
This research is triggered by the emerging ‘power by the hour’® paradigm, in which aero engines are effectively leased to airlines, with the manufacturing company remaining responsible for their maintenance and repair throughout their service life. By incorporating knowledge about the performance of existing products into the design phase of new products, it is hoped to tackle some of the in-servi
