Li Yang

Amid the intensifying global ecological crisis and the enduring dominance of anthropocentric ideologies, this study re-examines Shunji Iwai’s Wallace and a Mermaid through the lenses of ecological ethics, posthuman philosophy, and East Asian oceanic culture. Drawing upon Deleuze’s concept of becoming, feminist ecocriticism, and non-anthropocentric thought, this research analyses the mermaid as a hybrid and liminal figure that destabilizes species hierarchies and gender binaries. Simultaneously, the ocean is interpreted as a decentralized and generative space, central to reconfiguring ecological subjectivity and ethics. Integrating East Asian marine imaginaries of maternal generativity and boundary dissolution, the study elucidates how the narrative critiques anthropocentrism and reimagines interspecies coexistence within a global ecological framework. Ultimately, this paper advances a posthuman ethical paradigm grounded in fluid identity, relationality, and planetary interdependence, contributing to contemporary ecological philosophy and oceanic literary studies.

Background Social responsibility can motivate disaster relief nurses to devote themselves to safeguarding rights and interests of people when facing challenges that threaten public health. However, few studies focused on the relationship of moral courage, job-esteem, and social responsibility among disaster relief nurses. Objective To explore the influence of moral courage and job-esteem on the social responsibility in disaster relief nurses and clarify the relationship model between them. Methods A cross-sectional study was conducted among 716 disaster relief nurses from 14 hospitals in central China through an online survey, including moral courage scale, job-esteem scale, and social responsibility questionnaire. The data were analyzed by Pearson’s correlation, and the mechanism of the effect of moral courage and job-esteem on social responsibility was completed. Ethical considerations This study was approved by the Medical Ethics Committee of the Second Xiangya Hospital of Central South University (Approval Number: 2019016). Results Disaster relief nurses’ moral courage positively impacted social responsibility (r = 0.677, p < 0.01), and moral courage could affect social responsibility through the mediating role of job-esteem. Conclusion Job-esteem mediated between moral courage and social responsibility among disaster relief nurses. Nursing managers regular assessment of nurses’ moral courage and interventions such as meetings and workshops can reduce moral distress, foster morally courageous behavior, enhance job-esteem, and improve social responsibility performance among disaster relief nurses.

© The Author 2016.Topological quantum materials represent a new class of matter with both exotic physical phenomena and novel application potentials. Many Heusler compounds, which exhibit rich emergent properties such as unusual magnetism, superconductivity and heavy fermion behaviour, have been predicted to host non-trivial topological electronic structures. The coexistence of topological order and other unusual properties makes Heusler materials ideal platform to search for new topological quantum phases. By carrying out angle-resolved photoemission spectroscopy and ab initio calculations on rare-earth half-Heusler compounds LnPtBi, we directly observe the unusual topological surface states on these materials, establishing them as first members with non-trivial topological electronic structure in this class of materials. Moreover, as LnPtBi compounds are non-centrosymmetric superconductors, our discovery further highlights them as promising candidates of topological superconductors.

© 2017 American Society of Plant Biologists. All rights reserved.Aliphatic and aromatic lipids are both essential structural components of the plant cuticle, an important interface between the plant and environment. Although cross links between aromatic and aliphatic or other moieties are known to be associated with the formation of leaf cutin and root and seed suberin, the contribution of aromatic lipids to the biosynthesis of anther cuticles and pollen walls remains elusive. In this study, we characterized the rice male sterile mutant, defective pollen wall 2, which showed an abnormal anther cuticle, a defective pollen wall, and complete male sterility. Compared with the wild type, dpw2 anthers have increased amounts of cutin and waxes and decreased levels of lipidic and phenolic compounds. DPW2 encodes a cytoplasmically localized BAHD acyltransferase. In vitro assays demonstrated that recombinant DPW2 specifically transfers hydroxycinnamic acid moieties, using v-hydroxy fatty acids as acyl acceptors and hydroxycinnamoyl-CoAs as acyl donors. Thus, The cytoplasmic hydroxycinnamoyl-CoA:v-hydroxy fatty acid transferase DPW2 plays a fundamental role in male reproduction via the biosynthesis of key components of the anther cuticle and pollen wall.

Currently, buildings in the U.S. account for more than 40 % of total primary energy. In China, the same figure is 20 %. Detailed building energy analysis and benchmarking based on energy monitoring are becoming vitally important for the evaluation of energy-efficient technologies and related policy making. This paper focuses on methods and challenges in energy benchmarking of office buildings between the U.S. and China, based on the experiences and outcomes of a joint research project under the U.S.-China Clean Energy Research Center for Building Energy Efficiency. First, benchmarking methods were presented, including data analysis methods, required data, building selection criteria, and a standard data model for building energy use. Annual electricity use benchmarking was performed from a sample of selected office buildings in both countries, with the aim of identifying and understanding the main discrepancies and key driving factors. Benchmarking challenges were then summarized and discussed, and some potential solutions were proposed, including the process of building selection, data collection and clean-up, and specific analysis techniques. Recommendations were proposed for future work to improve the process and outcomes of building energy benchmarking between the two countries. © Springer-Verlag Berlin Heidelberg 2014.

© The Author 2017.Topological Weyl semimetal, a new state of quantum matter, has sparked enormous research interest recently. Possessing unique Weyl fermions in the bulk and Fermi arcs on the surface, TWSs offer a rare platform for realizing many exotic physical phenomena. TWSs can be classified into type-I that respect Lorentz symmetry and type-II that do not. Here, we directly visualize the electronic structure of MoTe 2, a recently proposed type-II TWS. Using angle-resolved photoemission spectroscopy, we unravel the unique surface Fermi arcs, in good agreement with our ab initio calculations that have nontrivial topological nature. Our work not only leads to new understandings of the unusual properties discovered in this family of compounds, but also allows for the further exploration of exotic properties and practical applications of type-II TWSs, as well as the interplay between superconductivity and their topological order.