The extraordinary adaptability of invertebrates is in no small part due to their sense organs, and particularly their eyes, which help them to find food, locate mates, escape predators and migrate to new habitats. Even though most invertebrates do not see as sharply as we do, many see much better in dim light, can experience many more colours, can see polarised light and can clearly distinguish ex

Migratory birds are well known to use information from the Earth’s magnetic field, stars and the sun for orientation and navigation. Here we give a historical overview of the research findings and techniques which have led to the current knowledge on how migratory songbirds use the Earth’s magnetic field for orientation. We discuss the functions and putative reception mechanisms of the magnetic in

OBJECTIVE: In dynamic susceptibility contrast MRI (DSC-MRI), an arterial input function (AIF) is required to quantify perfusion. However, estimation of the concentration of contrast agent (CA) from magnitude MRI signal data is challenging. A reasonable alternative would be to quantify CA concentration using quantitative susceptibility mapping (QSM), as the CA alters the magnetic susceptibility in

Ground vibration from traffic or construction work in cities is a known source of annoyance to inhabitants. However, vibration and re-radiated noise in buildings caused by exterior sources are seldom treated properly in the design process, which may be due to the lack of methodologies that can aid informed decision-making with respect to environmental vibration. To achieve efficient evaluation of

Wooden multi-story buildings have increased their market share in Europe over the last decades, mainly due to their relatively small carbon footprint and rapid onsite construction. Compared to more conventional heavy concrete buildings, wooden buildings are more sensitive to dynamic loads at low frequencies. Moreover, the dynamic response is generally more difficult to predict. This is, for exampl

Problem: Refugee entrepreneurship has recently garnered a growing academic and political interest around the world. The rate of scientific publication has soared in the last few years due to the scholarly urgency on the topic following the ‘global refugee crises’. Nevertheless, the research field is currently underdeveloped with existing knowledge dispersed across various and often disconnected di

Background: The evidence on the impact of high sugar consumption on micronutrient dilution does not yet allow for the establishment of clear thresholds of consumption. To establish upper and lower limit intake thresholds for added sugar, more studies from different countries and multiple populations are needed. The aim of this study was to examine the association between the intakes of added sugar

The use of wood as load-bearing material in residential and office buildings has increased significantly in Europe over the last decades. Such buildings often have wooden floors built with boards supported by joists and/or beams. The modal properties of such floors are important regarding the floors’ dynamic response to walking and other usage as well as structure-borne vibration and re-radiated n

Massive multiple-input multiple-output (MIMO) promises significantly higher performance relative to conventional multiuser systems. However, the promised gains of massive MIMO systems rely heavily on the accuracy of the absolute front-end calibration, as well as quality of channel estimates at the base station (BS). In this paper, we analyze user equipment-aided calibration mechanism to estimate t

This paper proposes a pragmatic methodology to characterize mutual coupling in uniform linear arrays (ULAs). The classical coupling model used in the literature of multiple input multiple output (MIMO) antenna arrays is based on impedance parameters, resulting valid only for electromagnetically small antennas, e.g. short dipole. To test the robustness and accuracy of the proposed coupling model we

Uric acid is the end product of dietary and endogenous purine metabolism in humans and higher primates. In all lower mammalian species it is converted to allantoin by liver uricase. The aim of this study was to investigate the uric acid turnover in pig model after nephrectomy surgery, fructose-enriched diet and potassium oxonate application. The first experiment was performed using 4 intact contro

The Green Revolution in Asia from the early 1960s is defined as a process driven by governments in pursuit of self-sufficiency in food grains. The process was market-mediated and smallholder based and can be dated to the early 1960s with the Nobel Prize Laureate, Norman Borlaug’s research on high-yielding dwarf wheat in Mexico and later spread to rice and number of countries in South East and Sout

Graphene nanoribbons (GNR) constitute a rapidly growing class of novel fascinating materials. Controlling the properties of GNR often implies controlling their atomic structure. In order to exert this control, a bottom-up approach for the growth of GNR is commonly used. Despite its great success, a lack of mechanistic understanding of the on-surface chemical processes remains one of the main chall

The annual Winter School of the Danish Diabetes Academy (DDA) in November 2019 challenged postdoctoral researchers with tough questions regarding research culture that scientists around the world are discussing. The complexity and competitiveness of modern research makes it increasingly difficult for junior researchers to navigate in the science community. This editorial reflects the voices of nea

The ATLAS Open Data project is a collection of high-level data from the Large Hadron Collider and tools to analyze this data. The ATLAS Open Data can be used for education, training, outreach and citizen science. These resources are meant to be platform-independent, and are available on the web and on storage devices such as USB drives.

Two recent outreach projects are making use of public communities to enhance and build upon the first phases set up by physicists. “ATLAScraft” is a recreation of ATLAS and the wider CERN complex in Minecraft. The basic layout was provided, but school students subsequently researched and created the experiment and subdetector models and their own mini-games to explain various aspects of the LHC an