[This corrects the article DOI: 10.1371/journal.pbio.1002086.].

The paper concentrates on four aspects of mitigating market power in European electricity networks: capacity divestiture, entry, promoting interconnection, and the capacity to regulate competition in generation, drawing on lessons from Britain, California and the Continent. Each of these actions can improve the intensity of competition in electricity wholesale markets, but attractive strategies...

An explicit procedure to construct a family of martingales generated by a process with independent increments is presented. The main tools are the polynomials that give the relationship between the moments and cumulants, and a set of martingales related to the jumps of the process called Teugels martingales.

Competitive political parties and election campaigns are central to the health of democracies. Parties and campaigns require significant resources to be effective. India has developed complex election expenditure, political party funding, and reporting and disclosure laws. We suggest that these laws may have perverse impacts on the electoral system: they tend to drive campaign expenditure under...

The emergence of bioprinting in recent years represents a marvellous advancement in 3D printing technology. It expands the range of 3D printable materials from the world of non-living materials into the world of living materials. Biomaterials play an important role in this paradigm shift. This Special Issue focuses on biomaterials and bioprinting and contains eight articles covering a number of...

This paper aims to investigate the properties of nominal elements in bilingual speakers of Turkish and Russian learning Greek as a second language. Specifically, the data examined include the use of determiners in definite and indefinite DPs and pronominal (object) clitics. Primarily, the study seeks to identify the (abstract) morphological features which show differential development in the L2...

Until now, metal–organic hybrid perovskites (MOHPs) have been known mainly for their remarkable electronic (1–3) and optical properties, generating immense interest worldwide and offering the potential to realize the goal of highly efficient and inexpensive solar power conversion (1, 4, 5) as well as a wide variety of other optoelectronic applications (6, 7). In an exciting development that pro...

We offer some, hopefully clarifying, comments on Verlinde’s recent claim that gravity is an entropic force. A suitable identification of quantities shows that both formulations of Newtonian gravity, the classical and the thermodynamical one, are actually equivalent. It turns out that some additional assumptions made by Verlinde are unnecessary. However, when it comes to General Relativity there...

Alleviation and reduction of poverty and common prosperity are the constant goals of Chinese Government. It is an important task for women’s federations at all levels to address the shortage of food and clothing for women and children in poor areas and to promote local efforts helping women and children in poor areas. Over the past years, the government, with poverty issues that affect women on...

The design and operation of a noncontact surface profilometry system based on the time-correlated single-photon-counting technique are described. This system has a robust optomechanical design and uses an eye-safe laser that makes it particularly suitable for operation in an uncontrolled industrial environment. The sensitivity of the photon-counting technique permits its use on a variety of tar...