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A time projection chamber (TPC) with micropattern gaseous detector (MPGD) readout is investigated as main tracking device of the International Large Detector (ILD) concept at the planned International Linear Collider (ILC). A prototype TPC equipped with a triple gas electron multiplier (GEM) readout has been built and operated in an electron test beam. The TPC was placed in a 1 T solenoidal field
Växter behöver ljus. Ljuset omvandlas genom fotosyntesen till kemisk energi som kan lagras i växten. Mer ljus ger således mer energi men bara upp till en viss gräns. När växten inte längre kan hantera mängden ljus som den utsätts för kommer flaskhalsar i processen orsaka att högenergetiska tillstånd blir mer långlivade. Dessa reaktiva ämnen kan då orsaka skada på närliggande komponenter, vilket kaPlants and algae need light to drive the photosynthetic machinery. An excess of light will, however, result in damage to the photosynthetic machinery and to the rest of the organism. The surplus of energy, when exposed to light stress is converted into less harmful heat energy through a process called non-photochemical quenching. This quenching is partly dependent on the xanthophyll pool located i
Vad är ursprunget till grundämnena i universum? Detta är ett utav fysikens största mysterium. Nästan hundra år sedan framkom idéen om att universum skapades i en enorm explosion känd som Big Bang. Ett tiotal sekunder efter Big Bang bestod universum av en blandning av partiklar bestående av bland annat neutroner och protoner. Under universums expansion minskade den enorma temperaturen och, likt mor
Intelligence scholars have described the contemporary availability ofOpen-Source Intelligence (OSINT) and the entrance of civil society actorsinto the field of intelligence as a “democratization of intelligence”, therebyportraying a fundamentally positive and inclusive enterprise. Assessingthe implications of the recent explosion of OSINT groups and activists fortraditional state intelligence acto
Popular Science Summary There is a saying that the sun supports the life living on earth. In general, the sunlight supports plants living, and plants become the base of almost all forms of ecosystems. A reaction called photosynthesis exists in all kinds of plants and is the foundation of usage of sunlight energy. In the photosynthesis process, energy in the sunlight converted into the energy store
The effects of global warming are apparent and the work towards a sustainable future is underway. In order to reduce the environmental impact caused by the transportation sector, a transition from fossil fuels to those based on renewable resources are important. Using agricultural land to produce raw materials, e.g. wheat or corn, for biofuel is controversial as it competes with food production. F
Proprotein convertase subtilisin/kexin type 9 (PCSK9) promotes the degradation of the hepatic low-density lipoprotein receptor (LDL-R) and is therefore a prominent therapeutic target for reducing LDL-cholesterol. The C-terminal domain of PCSK9 is unlikely to be involved in a direct extracellular interaction with the LDL-R. We probed the importance of the C-terminus for the degradation of the LDL-R
This study aims to explore how the Swedish Migration Court’s decision is legitimized or delegitimized in discourses in civil society, outside the legislative and judicial power. This is explored with a case study on a judicial decision to expel Sonya, a 90-year-old and sick Ukrainian woman. The material is collected from social media platforms where this case has been discussed. Thus, the results
Popular Abstract in Swedish Allt liv kräver energi. Energin kan komma från olika källor, såsom nedrytning av organiska eller oorganiska föreningar, värme eller ljus. Fysikens lagar säger oss att energi inte kan nyskapas eller förbrukas, bara omvandlas mellan olika former. På så sätt tillgodogör vi oss energin i mat när vi omvandlar kemiskt bunden energi till värme, då den förbränns i kroppens musk
In wavefield signal apparition, acquisition with periodic variations in source activation parameters shifts all or part of a signal cone out to, e.g., the Nyquist wavenumber, enabling perfect separation of simultaneous-source (sim-source) data below a certain temporal frequency. Cyclic convolution in the spatial frequency domain is used to generalise the signal apparition concept to the case of ap
Adaptation in new environments depends on the amount of genetic variation available for evolution, and the efficacy by which natural selection discriminates among this variation. However, whether some ecological factors reveal more genetic variation, or impose stronger selection pressures than others, is typically not known. Here, we apply the enzyme kinetic theory to show that rising global tempe
