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Ants use memorized visual scenes to navigate towards food sources and to return to their nest. Two new studies show that both of these behaviors fail when structures of the ant brain known as mushroom bodies are chemically disrupted, confirming long-held assumptions about the location of ants’ visual navigation memories.
It is generally found that human capital has had positive effects on industrial development and economic growth, but the relationship between formal education, work practice, industrial development and economic growth, and the relationships between them over time, remains unclear, largely because of a lack of empirical evidence. This note argues that an investigation of the Danish dairy industry c
Background:The Mediterranean diet (MD) has been proposed as a means for cancer prevention, but little evidence has been accrued regarding its potential to prevent pancreatic cancer. We investigated the association between the adherence to the MD and pancreatic cancer risk within the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort.Methods:Over half a million participants
Objective To systematically identify and validate published colorectal cancer risk prediction models that do not require invasive testing in two large population-based prospective cohorts. Design Models were identified through an update of a published systematic review and validated in the European Prospective Investigation into Cancer and Nutrition (EPIC) and the UK Biobank. The performance of th
En redogörelse av en enkel undersökning som visar att en övervägande majoritet av de tillfrågade föredrar en mer klassisk version av byggnad i centrala Helsingborg framför den modernistiska som förverkligas.
En reflektion kring ett politiskt beslut som togs i Göteborg 2020. Politikerna kom överens om att nu måste det nya som byggs vid Skeppsbron i Göteborg få en klassisk utformning. De menar att med klassisk och traditionell arkitektur blir invånarna och besökare nöjdare. Beslutet retade upp många arkitekter.
En reflektion kring värdet av en attraktiv stadskärna i tider
In this article we review the legal regulation of an obligation to self-isolate in Ukraine. For the period from 22 April 2020 till 22 June 2020 four groups of persons were obliged to self-isolate due to COVID-19. These groups are: persons diagnosed with or suspected to have COVID-19, persons that have been in contact with those diagnosed with COVID-19, those who consented to self-isolation when en
Soil contamination is a widespread problem and actions need to be taken in order toprevent damage to the groundwater and the life around the contaminated sites. InSweden more than 80.000 sites are potentially contaminated, therefore there is ademand for accurate and efficient methods for site characterization and soilremediation. In the past, the preferred methodology for soil remediation involved
Modern subtractive and additive manufacturing techniques present new avenues for X-ray optics with complex shapes and patterns. Refractive phase plates acting as glasses for X-ray optics have been fabricated, and spherical aberration in refractive X-ray lenses made from beryllium has been successfully corrected. A diamond phase plate made by femtosecond laser ablation was found to improve the Stre
Human activity is a major driver of change and has contributed to many of the challenges we face today. Detailed information about human population distribution is fundamental and use of freely available, high-resolution, gridded datasets on global population as a source of such information is increasing. However, there is little research to guide users in dataset choice. This study evaluates five
När fotografier från två epoker i en stadskärna jämförs kan det konstateras att perioden med mycket detaljhandel (1960-2000) kanske var en parantes. På bilder från perioden 1900-1930 visar det sig närmligen att stadskärnans skyltar domineras av caféer, verkstäder, livsmedel, skrädderier, skomakare mm. Så om vi nu är på väg in i ett stadskärna som präglas av närproducerat, reparationer, möten, co-c
Global fire-vegetation models are widely used to assess impacts of environmental change on fire regimes and the carbon cycle and to infer relationships between climate, land use and fire. However, differences in model structure and parameterizations, in both the vegetation and fire components of these models, could influence overall model performance, and to date there has been limited evaluation
Africa is largely influenced by fires, which play an important ecological role influencing the distribution and structure of grassland, savanna and forest biomes. Here vegetation strongly interacts with climate and other environmental factors, such as herbivory and humans. Fire-enabled Dynamic Global Vegetation Models (DGVMs) display high uncertainty in predicting the distribution of current tropi
När ekonomin och sysselsättningen alltmer baseras på tjänster, möten och kreativitet istället för att många människor arbetar "fordistiskt" blir det också angeläget att lämna det modernistiska stadsbyggandet och arkitekturidealet bakom oss. Istället behövs stadsmiljöer som gynnar möten och mental stimulans.
Wood ash recycling to forests after logging residues harvest is important to ensure long-term sustainable forest management, however, it is not recycled in Sweden at the level required to compensate for current logging residue out-take. A problem in this context is wood ash contamination through co-incineration of waste wood with forest fuels, a practice driven by the political goal of a circular
