Dynamics of Carroll Strings

We construct the canonical action of a Carroll string doing the Carroll limit of a canonical relativistic string. We also study the Killing symmetries of the Carroll string, which close under an infinite dimensional algebra. The tensionless limit and the Carroll $p$-brane action are also discussed.Comment: Footnote and references adde

(Bad) Luck or (Lack of) Effort?: Comparing Social Sharing Norms between US and Europe.

We compare the determinants of individual giving between two countries, Spain and the US, which differ in their redistribution policies and their beliefs over the causes of poverty. By varying the information about the determinants of income, we find that, although overall giving is similar in both countries when subjects know the actual role of luck and effort, Spanish subjects give more when they are uninformed compared to American subjects. Using elicited beliefs, we find that this is due to Spanish subjects associating poverty with bad luck and Americans believing that low performers did not work hard enough.individual giving, cross-cultural, beliefs, laboratory experiment

DNA/RNA sequencing using germanene nanoribbons via two dimensional molecular electronic spectroscopy: an ab initio study

Developing fast, reliable, and cost effective, yet practical DNA/RNA sequencing methods and devices is a must. In this regard, motivated by the recently introduced two-dimensional electronic molecular spectroscopy (2DMES) technique for molecular recognition, and the compatibility of 2D layers of group IV elements with the current technology of manufacturing electronic devices, we investigate the capability of germanene nanoribbons (GeNRs) as a feasible, accurate, and ultra-fast sequencing device under the application of 2DMES. We show that by employing 2DMES, not only can GeNRs unambiguously distinguish different nucleobases to sequence DNA/RNA, they are also capable of recognizing methylated nucleobases that could be related to cancerous cell growth. Our calculations indicate that, compared to frequently used graphene layers, germanene provides more distinct adsorption energies for different nucleobases which implies its better ability to recognize various molecules unambiguously. By calculating the conductance sensitivity of the system for experimental purposes, we also show that the introduced sequencing device possesses a high sensitivity and selectivity characteristic. Thus, our proposed system would be a promising device for next-generation DNA sequencing technologies and would be realizable using the current protocols of fabricating electronic devices.H2020 Marie Sklodowska-Curie Actions 841673European Commission MAT2017-88258-RPrograma Operativo FEDER of Andalucia 2014-2020 B-FQM-272-UGR20 AEI MAT2017-88258-

When Income Depends on Performance and Luck: The Effects of Culture and Information on Giving

We study how giving depends on income and luck, and how culture and information about the determinants of others’ income affect this relationship. Our data come from an experiment conducted in two countries, the US and Spain, which have different beliefs about how income inequality arises. We find no cross-cultural differences in giving when individuals are informed about the determinants of income, but when uninformed, Americans give less than Spanish. Culture and information not only affect individual giving, but also the determinants of giving and the beliefs about how income inequality arises. Beliefs partially moderate cross-cultural differences in giving

(Bad) Luck or (Lack of) Effort?: Comparing Social Sharing Norms Between US and Europe

We compare the determinants of individual giving between two countries, Spain and the US, which differ in their redistribution policies and their beliefs over the causes of poverty. By varying the information about the determinants of income, we find that, although overall giving is similar in both countries when subjects know the actual role of luck and effort, Spanish subjects give more when they are uninformed compared to American subjects. Using elicited beliefs, we find that this is due to Spanish subjects associating poverty with bad luck and Americans believing that low performers did not work hard enough

The cDNA and deduced amino acid sequence of the γ subunit of the L-type calcium channel from rabbit skeletal muscle

Complementary DNAs for the γ subunit of the calcium channel of rabbit skeletal muscle were isolated on the basis of peptide sequences derived from the purified protein. The deduced primary structure is without homology to other known protein sequences and is consistent with the γ subunit being an integral membrane protein