Tag: "behaviour" at biology news

Chronic alcohol abuse damages regulating hormones

...t least some features of craving, such as drinking behaviour and thirst, might be explained by biological alterations in the regulation of salt and water homeostasis. Therefore, approaches to substitute for vasopressin, or to normalize vasopressin regulation, might result in a reduction of craving-induced rela...

Birds and humans have similar 'shopping' habits

...n next week. The research team, comprising animal behaviour experts from the Universities of Newcastle upon Ty...e scientists need to understand the effects on the behaviour of foragers and pollinators of adding or subtracting a prey species from the environment. "The techn...

An eye for scent marks

...us use to mark their environment. Among the social behaviour patterns of degus is the use of communal paths when moving around in their territory and the use of common wallowing places. These "public" trails and places are generously marked with urine and faeces partly for the colony's own orientation, partly...

Rapid movements of living biomolecules visualised

...th these molecules it is difficult to simulate the behaviour in a living cell. Dynamic processes in the cell can only be understood with living cell microscopy. Molenaar used fluorescent probes which specifically bind to the molecule he wanted to study. By using a fluorescent microscope to examine where a flu...

World first for Swedish researchers mice born from transplanted wombs

...e mouse pups had normal body weight, showed normal behaviour and were fertile. Five out of seven uterine grafts that had been preserved in cooling solution for 24 hours before transplantation also produced healthy pups. Transplantation between different strains of mice was also used to study rejection of the t...

ICSI and IVF are safe results from worlds largest, longest running study

...were no differences between the groups in terms of behaviour problems or temperamental difficulties and no differences in measurements of parental stress; The rate of malformations was higher in the ICSI group compared to the controls. The reason for this moderately higher malformation rate is not known but ma...

International meeting on the Southern Ocean

...the Earth's ocean currents and global climate. Its behaviour is as critical to the rest of the world as it is to the local environment. However, the impact of climate change and the commercial exploitation of its fish stocks could result in major and potentially damaging changes. Unfortunately, our knowledge o...

US $1.2m grant awarded for impact of stress on eggs and embryos

... of the microenvironment on cellular and molecular behaviour of eggs and embryos, we hope to improve the developmental outcomes for both mothers and babies," Dr Thompson says. "This knowledge will also assist health professionals develop strategies to reduce the risk of adult onset diseases caused by problems ...

Portuguese teacher gets hands-on look at cutting-edge research at EMBL, Germany

...oms. The teachers did experiments ranging from the behaviour of single molecules to the development of several complex organisms, using some of the most advanced tools in molecular biology. "During the different activities we performed, I kept imagining the best ways to integrate what I learned in my class act...

A wake-up call for environmental health

...CI 109-351).' The editorial concludes: 'Changing behaviour will need changes in law (and tax incentives) to persuade not just Americans to reduce their fuel consumption, switch to public transport, use alternative sources of energy, adopt recycling initiatives, and reduce their reliance on power-consuming de...

Watching social behaviour evolve

...ecies. Yet the evolutionary origins of cooperative behaviour in social animals and insects remains one of the m... real-time evolution of novel forms of cooperative behaviour between bacterial cells in the laboratory. As reported in a study appearing in the 4 September issue...

Unfaithful songbirds increase offspring fitness

...study mating systems. We now know that unfaithful behaviour referred to as extra-pair copulations is more th...nt males. The evolutionary advantage of unfaithful behaviour is obvious for males: the clutch- or litter size of the partner limits the maximum number of offspri...

Are walruses right-handed?

... in BMC Ecology. The first study of walrus feeding behaviour in the wild showed that the animals preferentially...n foraging. Direct observations of the underwater behaviour of free-living marine mammals are rare, especially if the animals are dangerous, like the walrus. Th...

War on termites heats up with worlds largest test site

...also learning from the Yolngu people about termite behaviour and biology, says Dr Berhan Ahmed, Senior Research Fellow at the University of Melbourne and the project's principal researcher. "The Yolngu people helped set up the project and are now responsible for its maintenance. We have also begun discussions...

First-ever UN University diploma offered to grads of online water-management course

...d measurements; the factors affecting movement and behaviour in different environments; surface and groundwater environments; the watershed concept and; the impacts of weather and climate. Course 3: The terrestrial ecosystem and the impacts of land use changes Fundamental ecological concepts; the role of the n...

Leibniz Prizewinners 2004

... control. This makes it possible to predict future behaviour following interventions in the system, much like a chess player who is always thinking several moves ahead. This approach was the first to combine theoretical stringency with practical applicability, which means the process is now used in industrial ...

Space technology in new technique to fight breast cancer

...lly developed for ESA to simulate in real time the behaviour of satellites - was used to help solving the engineering complexities of designing the system. Although much of the hardware is industrial standard, Brunsveld van Hulten emphasises that "it was the electronic circuits and embedded software from ESA ...

European Virtual Institute for Genome Annotation receives 12 million Euro

...ganism functions and develops we can improve diet, behaviour and environment to optimize quality of life," she adds. BioSapiens is coordinated by a steering committee comprising Janet Thornton (chair), Sren Brunak (Technical University of Denmark), Anna Tramontano (University of Rome "La Sapienza") and Alfonso...

Molecular mechanisms that trigger flowering in spring

...g, and since 1946 Tuebingen. Many aspects of plant behaviour show daily rhythms, such as the movement of leaves to optimise exposure to sun light, or the opening and closing of pores on the leaves to reduce water loss during the day. These behaviours are controlled by the circadian clock, an internal timer tha...

Researchers model embryo implantation and tumour metastasis in fruit flies

...of the tissue contact process and the 'metastatic' behaviour of the cells as they leave the tissue in mutants. Other members of the research team included Dr. Ronit Wilk of The Hospital for Sick Children and Dr. Frieder Schck of McGill University. This research was supported by the National Cancer Institute o...

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