Giant supercurrent states in a superconductor-InAs/GaSb-superconductor junction

Superconductivity in topological materials has attracted a great deal of interest in both electron physics and material sciences since the theoretical predictions that Majorana fermions can be realized in topological superconductors [1-4]. Topological superconductivity could be realized in a type II, band-inverted, InAs/GaSb quantum well if it is in proximity to a conventional superconductor. Here we report observations of the proximity effect induced giant supercurrent states in an InAs/GaSb bilayer system that is sandwiched between two superconducting tantalum electrodes to form a superconductor-InAs/GaSb-superconductor junction. Electron transport results show that the supercurrent states can be preserved in a surprisingly large temperature-magnetic field (T-H) parameter space. In addition, the evolution of differential resistance in T and H reveals an interesting superconducting gap structure

FACTORS OF HIGHER EDUCATION CURRICULUM MANAGEMENT SYSTEM SUSTAINABILITY IN JIANGSU, CHINA

This study examines the sustainable growth of China’s curriculum management system for higher education. As a literature review, this research examines various aspects of the Chinese curriculum management system for higher education. China, a rapidly developing nation, strives to enhance its educational system. After a thirty-year conflict that inflicted unimaginable suffering, the country must be rebuilt. Higher education is essential for satisfying the needs of the country. The structure of observed learning outcomes may be used to build a curriculum centred on learning outcomes, so enhancing the quality and alignment of national education. Curriculum designers facilitate education within the context of developing methodologies, subject matter, and course selections. Concerns over pedagogy and curriculum among curriculum writers have increased in this era of rapid change. Most importantly, it provides curriculum authors with classroom experience-based data. Curriculum designers and college administrators will profit from the results.  Article visualizations

SUSTAINABLE HIGHER EDUCATION CURRICULUM MANAGEMENT SYSTEM IN CHINA: THEORETICAL PERSPECTIVES

This paper examines how China’s curriculum management system for higher education has been able to expand in a sustainable manner. This study examines a number of different facets of the Chinese curriculum management system for higher education as a means of doing a literature review. China, a country that is developing at a fast rate, is working hard to improve its education system. The country has to be rebuilt after a thirty-year battle that caused immeasurable pain. In order to meet the requirements of the nation, higher education is crucial. The framework of observed learning outcomes may be used to construct a curriculum that is centred on learning outcomes, hence improving the quality and alignment of national education. In the context of developing methodology, topic content, and course choices, curriculum designers assist education. In this period of fast change, there has been a growth in the number of curriculum authors who are concerned about pedagogy and curriculum. Most significantly, it gives curriculum developers access to data that is based on actual classroom experiences. The outcomes will be beneficial to both curriculum designers and college officials.  Article visualizations

A REVIEW OF THE SUSTAINABLE DEVELOPMENT OF HIGHER EDUCATION CURRICULUM MANAGEMENT SYSTEM IN CHINA

This research determines the sustainable development of the higher education curriculum management system in China. As a literature-based review paper, this study explores some insights into the Chinese higher education curriculum management system. China, a growing country, struggles to improve its education system. After a thirty-year war that caused immense misery, the nation must be rebuilt. Higher education is vital to meeting the nation’s demands. The structure of observed learning outcomes may be utilised to develop a curriculum around learning outcomes, boosting national education quality and alignment. Curriculum developers enable education within the evolving methodology, topic content, and course options. In this time of fast change, curriculum authors’ concerns about pedagogy and curriculum have grown. Most significantly, it offers curriculum developers experience-based classroom data. The findings will benefit curriculum developers and college administrators.  Article visualizations

General and Specific Promotion of Flagellar Assembly by a Flagellar Nucleoside Diphosphate Kinase

Nucleoside diphosphate kinases (NDKs) play a central role in diverse cellular processes using the canonical NDK activity or alternative mechanisms that remain poorly defined. Our study of dimeric NDK5 in a flagellar motility control complex, the radial spoke (RS), has revealed new modalities. The flagella in Chlamydomonas ndk5 mutant were paralyzed, albeit only deficient in three RS subunits. RS morphology appeared severely changed in averaged cryo-electron tomograms, suggesting that NDK5 is crucial for the intact spokehead formation as well as RS structural stability. Intriguingly, ndk5’s flagella were also short, resembling those of an allelic spoke-less mutant. All ndk5’s phenotypes were rescued by expressions of NDK5 or a mutated NDK5 lacking the canonical kinase activity. Importantly, the mutated NDK5 that appeared fully functional in ndk5 cells elicited a dominant-negative effect in wild-type cells, causing paralyzed short flagella with hypophosphorylated, less abundant, but intact RSs, and accumulated hypophosphorylated NDK5 in the cell body. We propose that NDK5 dimer is an RS structural subunit with an additional mechanism that uses cross-talk between the two NDK monomers to accelerate phosphorylation-related assembly of RSs and entire flagella

New Graph Model for Channel Assignment in Ad Hoc Wireless Networks

The channel assignment problem in ad hoc wireless networks is investigated. The problem is to assign channels to hosts in such a way that interference among hosts is eliminated and the total number of channels is minimised. Interference is caused by direct collisions from hosts that can hear each other or indirect collisions from hosts that cannot hear each other, but simultaneously transmit to the same destination. A new class of disk graphs (FDD: interFerence Double Disk graphs) is proposed that include both kinds of interference edges. Channel assignment in wireless networks is a vertex colouring problem in FDD graphs. It is shown that vertex colouring in FDD graphs is NP-complete and the chromatic number of an FDD graph is bounded by its clique number times a constant. A polynomial time approximation algorithm is presented for channel assignment and an upper bound 14 on its performance ratio is obtained. Results from a simulation study reveal that the new graph model can provide a more accurate estimation of the number of channels required for collision avoidance than previous models