Editorial: The limitations of limitations

Europe and the Challenge of Energy Security: Limitations and Strategies

The increasing dependence of European Union member countries on imported oil and gas has led to concerns about energy supply and security.  At the same time the share of clean energy in Europe’s energy consumption basket is increasing due to environmental issues. About a quarter of all energy consumption in the EU is natural gas, and most EU member states import almost all of their energy resou...

optogenetics: importance and applied limitations

This article has no abstract.

Editorial: Stressors in animals and humans - Practical issues and limitations

Stress e the physiological response to an environmental challenge is now a fundamental scientific, clinical and societal concept, which serves as testimony to the importance of its initial description by Hans Selye some 80 years ago (Fink, 2016; Selye, 1936). Whilst the stress response (and related states such as emotionality and arousal) is typically the focus of attention, in the present spec...

Guest Editorial Sexuality education in different contexts: limitations and possibilities

Thyroid Nodule Imaging. Status and Limitations.

Thyroid nodules are common, occurring in almost two-thirds of some populations; among these only about 7% are malignant. The most important question with any new discovered thyroid nodule is, “is this malignant?” The main arbiter of malignancy or benignity remains fine needle aspiration and the mainstay of treatment surgery. But given the resources involved, doing an FNAC or surgery in every di...