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Protection motivation theory and cigarette smoking among vocational high school students in China: a cusp catastrophe modeling analysis [PDF]
Global Health Research and Policy, 2016 Tobacco use is one of the greatest public health problems worldwide and the hazards of cigarette smoking to public health call for better recognition of cigarette smoking behaviors to guide evidence-based policy. Protection motivation theory (PMT) provides a conceptual framework to investigate tobacco use. Evidence from diverse sources implies that the
Yunan Xu, Xinguang Chen
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Evaluation Model of Dike Safety Based on Cusp Catastrophe Theory
Applied Mechanics and Materials, 2012 Evaluation indexes (monitoring value) set in safety evaluation of dike, it was difficult in conforming the range of evaluation indexes, and could not reflect characteristic of outburst destroy. Catastrophe theory is a kind of mathematical method that problems of transition, discontinuity, and abrupt qualitative change based on analysissitus, problems ...
Xi Zhong Shen +2 more
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Meitan xuebaoThe long-term stability of sandstone roadways is essential for the safe and efficient exploitation of deep coal resources, as their sudden instability can readily cause major disasters.
Luyi XING +4 more
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Dressing the Cusp: How Sharp-Edge Diffraction Theory Solves a Basic Issue in Catastrophe Optics [PDF]
The description of light diffraction using catastrophe optics is one of the most intriguing theoretical invention in the field of classical optics of the last four decades. Its practical implementation has faced some resistance over the years, mainly due to the difficulty of mathematically decorating the different, topologically speaking, types of ...
Riccardo Borghi
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Catastrophe Theory Applied to Neuropsychological Data: Nonlinear Effects of Depression on Financial Capacity in Amnestic Mild Cognitive Impairment and Dementia [PDF]
Entropy, 2022 Financial incapacity is one of the cognitive deficits observed in amnestic mild cognitive impairment and dementia, while the combined interference of depression remains unexplored.
Dimitrios Stamovlasis +3 more
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Stability of mining pillars in stopes based on cusp catastrophe theory
矿业科学学报When exploitating deep-buried ore deposits, it is necessary to leave permanent pillars with certain width to ensure the stability of the mining area. Therefore, the reasonable design of pillar width is vital to its safety.
WEN Xiaosong +4 more
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Shui kexue jinzhanThis study focuses on the braided reach of the Lower Yellow River (LYR)，which features abrupt and random river regime evolution. Studying such river regime stability variations and dominant controlling factors is crucial for addressing challenges such as
Zhiwei CAO +6 more
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This study presents a multivariate mathematical framework to examine the resource allocation process for developing sovereign digital infrastructure within the context of technological diplomacy. Addressing the balance between global integration and digital sovereignty, the proposed model extends the Cobb-Douglas production function to incorporate ...
Nguyen Viet Anh
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工程科学学报, 2023 Sudden transition is a widely existing phenomenon in engineering practice. When the state of the system experiences sudden abrupt transition, calculus-based traditional mathematical modeling methods has low accuracy.
Ming ZHANG +6 more
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Research on the Traffic Flow Control of Urban Occasional Congestion Based on Catastrophe Theory
Journal of Advanced Transportation, 2021 Aimed at the problem of occasional congestion control, the cusp catastrophe theory is used to establish the catastrophe model of the urban road system under occasional congestion, finding breakpoints and analyzing stability after urban road system ...
Yang Xu +4 more
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