Against the backdrop of homogeneous mass tourism, reverse tourism, as a trend where tourists avoid popular destinations and pursue niche experiences, is reshaping the paradigm of rural tourism development. This paper systematically analyzes the connotation, framework, and feasibility of reverse tourism using comparative analysis, model derivation, and practical verification. The study reveals that reverse tourism is characterized by three key dimensions: reflection on the essence of tourism, aberration in tourist behavior, and distinction in tourist experience, forming a dynamic cycle mechanism of “willingness-behavior-experience”. Additionally, centering on tourists is crucial for constructing the analytical framework, classifying visitors based on their travel participation history, and creating a role transition matrix, which helps uncover the endogenous driving forces of tourist behavior. Furthermore, evolving tourist demands, improvements in rural public services, and the successful replication of “small yet beautiful” models have created favorable conditions for implementing reverse tourism in rural areas. Finally, the virtuous cycle of “protection-development-benefit” formed by supply-demand coupling provides a systematic solution for rural revitalization that balances ecology, culture, and economy. This paper systematically expounds the theoretical logic, mechanism, and practical path of reverse tourism as a new paradigm for rural tourism transformation, offering research conclusions with both theoretical innovation and practical guidance for promoting rural sustainable development.
Tidal range power plants (TPPs) are reliable electricity generators with the la Rance TPP in France serving as an example of long-term (60+ years) s uccess. Despite their potential for energy delivery, the challenges surrounding TPP development remain substantial. High initial investment and concerns about environmental impacts on marine ecosystems have made it difficult to progress major proposals. With rising sea levels and more frequent, intense storm surges expected to lead to greater inundation of key coastal zones, co-benefits to ecosystems and infrastructure that TPPs may offer are being reconsidered. Using the UK as a case study, we map appropriate tidal resource (>5 m tidal range), 2050 1:25 flood risk areas (1 m rise), coastal zones with conservation specification and areas of high human density. Overlap in these factors reveals specific locations in which further research would usefully estimate potential costs and benefits, socially, ecologically and financially. Viewed together, reduced flood risk to people and infrastructure, ecosystem conservation opportunity and stable energy generation may highlight the future opportunity of TPPs.
Brassica napus L., one of the world’s most significant oilseeds, is experiencing a paradigm shift from a single-minded focus on edible oil production to a multifactorial approach centered on sustainable agriculture. This review synthesizes the progress in molecular breeding, which has enabled the development of multifunctional B. napus ideotypes. We discuss the genomic plasticity of the crop, based on the genomic mosaicism and allopolyploid origin, which provides a genetic reservoir basis of diversification. Contemporary approaches such as genomic selection, marker-assisted pyramiding, and multi-omics integration are considered in terms of their ability to maximize the properties of multifaceted trait networks, breaking historical trade-offs (e.g., yield vs. quality), and providing new value-added functions. Their success is evidenced by examples, including the development of ultra-high-oil cultivars and multi-colored ornamental varieties. We also describe emerging directions, such as engineering the root architecture of dual-purpose fodder and optimizing seed oil composition with single-cell omics. These molecular tools, combined with precision agriculture technologies, enable the realization of an integrated Agriculture-Processing-Tourism framework. B. napus can move beyond being a commodity and become a personalized crop, capable of fulfilling all three functions in bringing nutritional security, bio-economic diversification, and ecological resilience, and thus, the philosophy of the Grand Food Concept.
Mechanotransduction is essential for cardiovascular physiology, enabling cells to sense and respond to mechanical forces such as shear stress, stretch, pressure, and extracellular matrix deformation. Among mechanosensitive ion channels, PIEZO1 and PIEZO2 have emerged as critical regulators of cardiovascular mechanobiology. These large trimeric ion channels convert mechanical stimuli into calcium-dependent electrochemical signals that regulate vascular development, endothelial homeostasis, cardiac remodeling, inflammatory activation, and blood pressure control. Recent advances in structural biology, electrophysiology, and molecular genetics have substantially improved understanding of PIEZO channel architecture, mechanogating mechanisms, and downstream signaling pathways. In the cardiovascular system, PIEZO1 functions prominently in endothelial cells, cardiomyocytes, fibroblasts, erythrocytes, and vascular smooth muscle cells, where dysregulated signaling contributes to hypertension, fibrosis, cardiac hypertrophy, ischemic injury, and vascular inflammation. This review summarizes current knowledge of PIEZO-mediated cardiovascular mechanotransduction, emphasizing structural mechanisms, physiological functions, disease implications, and therapeutic potential. Emerging computational approaches, including artificial intelligence and machine learning-assisted electrophysiology, are also discussed as promising tools for advancing mechanobiological research, multiscale modeling, and precision cardiovascular medicine.
Low carbon energy development is a solid requirement for decarbonization and carbon neutralization of the economy. Hydrogen energy is chosen for achieving a large degree of decarbonization in the fields of industrial, transport, and domestic consumptions. This paper provides an overview on the current state of global hydrogen production and demand, summarizes the momentum of green hydrogen development, and analyzes the possible roles of countries in the global hydrogen trade and cooperation. The status and costs of hydrogen production and transportation in China were systematically examined. While China has become the world’s largest hydrogen producer and consumer, it faces a major structural contradiction that the country’s hydrogen resources are unevenly distributed, abundant in the west but scarce in the east, making long-distance transport costs a key bottleneck for its domestic hydrogen energy development. To address these challenges, three strategic scenarios, including eastward hydrogen transmission, international cooperation, and efficient utilization of wind power for hydrogen production, were proposed to reach the goal that by 2050, the share of coal consumption will drop to 30%, and the share of non-fossil energy will increase to 50%. These scenarios will provide data support and strategic references for the precise positioning of China’s hydrogen market and the construction of a sustainable supply chain.
