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Popular Abstract in Swedish Jätteplaneterna, Jupiter, Saturnus, Uranus och Neptunus, är de största planeterna i solsystemet. De ligger långt från solen och har alla betydande gasatmosfärer, upp emot hundra gånger mer massiva än hela jorden. Tack vare de tjocka gashöljena, med en sammansättning som liknar solens, kan man förstå att jätteplaneterna bildades i en gasskiva. Denna skiva kallas för solGiant planets form embedded in a protoplanetary disc around a young star. Close to the midplane a large fraction of the available mass in solids is found in particles of cm to dm in size, which drift towards the star due to friction with the surrounding gas. In paper I, II, III we describe a novel theory that explains how embryos, planetesimals larger than ~1000 km, grow efficiently by sweeping up

This white paper contains six policy ideas that may help countries in coping with theCOVID-19 pandemic. The paper focuses on policies that can slow down the spread of the disease, better protect high-risk groups and leverage that a large part of the labor force is idle. For each policy idea, we describe the problem it is meant to solve, what may be leveraged to solve it, and a brief analysis of be

The tremendous increases in production of plastic materials has led to an accumulation of plastic pollution worldwide. Many studies have addressed the physical effects of large-sized plastics on organisms, whereas few have focused on plastic nanoparticles, despite their distinct chemical, physical and mechanical properties. Hence our understanding of their effects on ecosystem function, behaviour

Urbanisation is regarded as one of the most threatening global issues for wildlife, however, measuring its impact is not always straight forward. Oxidative stress physiology has been suggested to be a useful biomarker of health and therefore, a potentially important indicator of the impact that urban environmental stressors, especially air pollution, can have on wildlife. For example, nitrogen oxi

The current use of a 30 million year dateline for accepting genera in the Parmeliaceae is evaluated. Its value is doubtful since evolution obviously went quicker in some lichen groups compared with others. Parallel evolution is also very common among lichens. Polyphyletic genera should always be split, while sister groups may remain split or be combined after considering non-molecular characters.

This article compares Swedish social workers, teachers, and journalists’ experiences of workplace violence. It addresses similarities and differences between the three professional groups in terms of who exposed them to workplace violence, what it was about, and what triggered it. The article is based on an online survey study, and the findings suggest that consumer-related violence from target gr

Quantifying how variable temperature regimes affect energy expenditure during development is crucial for understanding how future thermal regimes may impact early life survival and population persistence. Developmental cost theory (DCT) suggests that there is an optimal temperature (Topt) that minimises energy expenditure during development (the ‘cost of development‘). Exposure to fluctuating temp

The last decades have seen frequent calls for a more extended evolutionary synthesis (EES) that will supposedly overcome the limitations in the current evolutionary framework with its intellectual roots in the Modern Synthesis (MS). Some radical critics even want to entirely abandon the current evolutionary framework, claiming that the MS (often erroneously labelled “Neo-Darwinism”) is outdated, a

Shuker points to some inconsistencies in my terminology about consequence laws in evolutionary biology, specifically that gene flow and recombination are not as easily classified as one gets the impression of after reading Sober (1984). I agree, and I also emphasize that evolutionary biology should not only focus on consequence laws, but also source laws arising from the ecological selective envir

How do you take a reliable measurement of a material whose microstructure is random? When using wave scattering, the answer is often to take an ensemble average (average over time or space). By ensemble averaging we can calculate the average scattered wave and the effective wavenumber. To date, the literature has focused on calculating the effective wavenumber for a plate filled with particles. On

Henzinger et al. posed the so-called Online Boolean Matrix-vector Multiplication (OMv) conjecture and showed that it implies tight hardness results for several basic dynamic or partially dynamic problems [STOC'15]. We first show that the OMv conjecture is implied by a simple off-line conjecture that we call the MvP conjecture. We then show that if the definition of the OMv conjecture is generalize

Increasing human impact on the environment is causing drastic changes in disturbance regimes and how they prevail over time. Of increasing relevance is to further our understanding on biological responses to pulse disturbances (short duration) and how they interact with other ongoing press disturbances (constantly present). Because the temporal and spatial contexts of single experiments often limi

Ecological stability encompasses multiple dimensions of functional and compositional responses to environmental change. Though no single stability dimension used in isolation can fully reflect the overall response to environmental change, a common vulnerability assessment that integrates simultaneously across multiple stability components is highly desirable for ecological risk assessment. We deve

Nyhetsbrev från Akademikerföreningen Sveriges Ingenjörer vid Siemens Energy AB Kontakt: asi.se@siemens-energy.com Redaktörer: CH, JB Nr: 03 2025-04-01 Pension – ditt livs längsta after work Pensionen kan kännas väldigt avlägsen och något som du kan börja tänka på senare, men det lönar sig att ha din pension i åtanke genom hela din yrkeskarriär. Glöm inte att pensionen är den lön du får när du slut

https://www.saco.se/globalassets/lokala-akademikerforeningar/privat/siemens-energy-ab/nyhetsbrev/asi-nyhetsbrev-0325.pdf - 2026-04-21

Därför skyddar blodgrupp noll vid malaria – Vetenskap och Hälsa Vetenskap och hälsa Populärvetenskapligt om medicinsk forskning i Skåne Teman Podd Tidskrift Prenumerera Om webbplatsen Kontakt Sök Sök Därför skyddar blodgrupp noll vid malaria 2015-03-10 ⚠️ Den här artikeln är mer än 5 år gammal. Nya forskningsrön kan ha tillkommit. Martin L Olsson, Annika Hult och Jill Storry med en modell av en rö

https://www.vetenskaphalsa.se/darfor-skyddar-blodgrupp-noll-vid-malaria/ - 2026-04-21

Varför så trista prylar för äldre? – Vetenskap och Hälsa Vetenskap och hälsa Populärvetenskapligt om medicinsk forskning i Skåne Teman Podd Tidskrift Prenumerera Om webbplatsen Kontakt Sök Sök Varför så trista prylar för äldre? 2014-01-16 ⚠️ Den här artikeln är mer än 5 år gammal. Nya forskningsrön kan ha tillkommit. – Varför är produkter tänkta för äldre ofta så trista? Visst är funktionen viktig

https://www.vetenskaphalsa.se/varfor-sa-trista-prylar-for-aldre/ - 2026-04-21

Although it is widely recognized that leadership concerns organizing future actions and mobilizing organizational actors to pursue them, our understanding of how this is accomplished in situated work interactions is relatively limited. Recent ethnographic studies have focused on leadership work resulting in the emergence of direction. This study explores the efforts involved in attempting to mobil

Objective: To evaluate hand and arm function and its association with motor symptoms as well as activities of daily living (ADL) in de novo Parkinson’s disease (PD).Background: Motor symptoms and disability in upper limb are common in PD and usually assessed using Unified PD Rating Scale (UPDRS). Activities, like reaching, grasping, manipulating objects, writing, dressing, and eating, may be more Objective: To evaluate hand and arm function and its association with motor symptoms as well as activities of daily living (ADL) in de novo Parkinson’s disease (PD).Background: Motor symptoms and disability in upper limb are common in PD and usually assessed using Unified PD Rating Scale (UPDRS). Activities, like reaching, grasping, manipulating objects, writing, dressing, and eating, may be more