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A new block-oriented language called Friend is proposed. It is designed to support for the implementation of flexible and adaptive embedded control systems. Requirements on a controller are specified using contracts. The use of contracts simplifies the design and implementation of embedded systems that can adapt to altered operating conditions. The contracts allow the system to negotiate about res

Tool wear intensity is one of the major performance and economic indicators of metal cutting processes. Understanding and control of tool wear and its governing mechanisms enables effective and sustainable manufacturing. Known wear mechanisms include abrasive, adhesive, chemical and diffusional, where their individual or combined action leads to an overall tool degradation. In this study, we prese

High latitude mires are key ecosystems in the context of climate change since they store large amounts of carbon while constituting an important natural source of methane (CH4). However, while a growing number of studies have investigated methane fluxes (FCH4) at the plot- (~1 m2) and ecosystem-scale (~0.1–0.5 km2) across the boreal biome, variations of FCH4 magnitudes and drivers at the mesoscale

While many studies have examined carbon dynamics of boreal ecosystems following wildfire, research on forest-atmosphere carbon fluxes during widespread smoke events from adjacent active wildfires is limited. We examined eddy covariance carbon exchange adjacent to the May 2011 Utikuma Complex wildfire in central Alberta, Canada. Over a one-week period while the wildfire was burning <10 km from the

The future role of boreal forests in the global carbon cycle is uncertain given the rapid climate change in high latitudes. At the landscape scale, heterogeneity in stand age and land cover, contributions from terrestrial and aquatic fluxes, and harvest export may create complex carbon cycle-climate interactions. However, the integrated response of the net landscape carbon balance (NLCB) to inter-

Deposition of phosphorus (P) is important for the nutrient supply to forests and open land but also contributes to the eutrophication of surface waters. Deposition to open land can be measured as bulk deposition while deposition to forests cannot be measured directly, due to internal circulation of P within forest canopies. This study aimed to quantify the total deposition of P to open land and fo

IntroductionSport-related concussion (SRC) is one of the most common and concerning injuries in team sports, with potential long-term effects on athlete health and performance. Linear head acceleration (LHA) and rotational head acceleration (RHA) are central biomechanical markers of brain loading during impact. Yet, the magnitude of these accelerations during SRC events remains poorly synthesized

Despite national progress, stunting remains prevalent in specific regions of Rwanda, highlighting the limitations of coarse-resolution data for effective mapping and intervention planning. This study explored optimal spatial resolution and analytical approach to capture localised dynamics and the multifactorial nature of stunting. A cross-sectional, population-based study was conducted in the Nort

The stable isotope ratios of carbon (δ13C(CH4)) and hydrogen (δ2H(CH4)) in methane (CH4) from atmospheric air samples provide a tracer that can help distinguish the relative contribution of emission sources. These can be continuously measured at atmospheric monitoring stations by optical isotope ratio spectrometer (OIRS) instruments, providing data that is complementary to isotope ratio mass spect

Drylands account for a disproportionate share of the world’s armed conflicts, a pattern frequently interpreted through the lens of resource scarcity– where climate change and water stress are seen as primary drivers of violence. While this framing underscores critical environmental pressures, it risks simplifying the complex social, ecological and political realities of these regions. This article

10Be deposition in ice cores is widely used for solar reconstructions, but its interpretation is complicated by volcanic influences. Using the state-of-the-art aerosol-climate model ECHAM6.3-HAM2.3-SALSA2.0: 10Be, we assess the impacts of three major volcanic eruptions: Agung (1963), El Chichón (1982) and Pinatubo (1991). All eruptions enhance stratospheric 10Be sedimentation, increasing atmospher

Relaxed eddy accumulation (REA) measurements for 14CO2 enable the estimation of fossil fuel (ff) CO2 fluxes in urban areas. This work is based on 252 REA ffCO2 flux measurements conducted on tall towers in the cities of Zurich, Paris, and Munich. The ffCO2 fluxes were compared to net eddy covariance CO2 fluxes to quantify the role of non-fossil (nf) CO2 fluxes. While the measurements in Zurich and

Plant membrane steroid binding proteins (MSBPs) belong to the membrane-associated progesterone receptors (MAPRs), which is present in all eukaryotic kingdoms. Plant MSBPs have been shown to regulate the function of cytochrome P450 enzymes, bind different steroidal compounds and confer salt tolerance. However, the exact molecular function of plant MSBPs remains elusive. Here, we perform a phylogene

30 juni 2026 10:00 till 4 juli 2026 16:00 | Barn- och ungdomsevenemang, Övrigt Fira sommarlovet hos oss! Vi har sommaröppet tisdagar-lördagar mellan 10-16 under vecka 25-33. Se en spännande show, utforska våra utställningar, gå på visning i planetariet och kliv in i kemilabbet! Hela sommarens program hittar du här.VECKANS SHOWER30 juni och 2 juli kl 12: Kemishowen ELD En hisnande upplevelse där el

https://www.lu.se/evenemang/sommarlovsoppet-pa-vattenhallen - 2026-05-16

29 juli 2025 10:00 till 2 augusti 2025 16:00 | Barn- och ungdomsevenemang, Övrigt Fira sommarlovet hos oss! Vi har sommaröppet tisdagar-lördagar mellan 10.00-16.00 under vecka 25-33. Testa våra utomhusaktiviteter på gården, se en spännande show, utforska våra utställningar, gå på visning i planetariet och ät en glass i solen! Hela sommarens program hittar du här. VECKANS SHOWER29 och 31 juli kl 12

https://www.lu.se/evenemang/sommarlovsoppet-pa-vattenhallen-0 - 2026-05-16

16 juni 2026 10:00 till 18 juni 2026 16:00 | Barn- och ungdomsevenemang, Övrigt Fira sommarlovet hos oss! Vi har sommaröppet tisdagar-lördagar mellan 10.00 - 16.00 under vecka 25-33. Se en spännande show, utforska våra utställningar, gå på visning i planetariet och kliv in i kemilabbet! Hela sommarens program hittar du här.VECKANS SHOWER16 juni kl 12: Robotshowen I Robotshowen har vi kul med progr

https://www.lu.se/evenemang/sommarlovsoppet-pa-vattenhallen-5 - 2026-05-16

23 juni 2026 10:00 till 27 juni 2026 16:00 | Barn- och ungdomsevenemang, Övrigt Fira sommarlovet hos oss! Vi har sommaröppet tisdagar-lördagar mellan 10.00 - 16.00 under v 25-33. Se en spännande show, utforska våra utställningar, gå på visning i planetariet och kliv in i kemilabbet! Hela sommarens program hittar du här.VECKANS SHOWER23 och 25 juni kl 12: Fossil och geologishow  Se på riktiga fossi

https://www.lu.se/evenemang/sommarlovsoppet-pa-vattenhallen-4 - 2026-05-16