A novel anti-interference method was developed to detect reduced glutathione with a UV-vis spectrometer, and successfully applied to glutathione tracking of enzymatic synthesis.
Abstract. Distance (upper)-bounding (DUB) allows a verifier to know whether a proving party is located within a certain distance bound. DUB protocols have many applications in secure authentication and location based services. We consider the dual problem of distance lower bounding (DLB), where the prover proves it is outside a distance bound to the verifier. We motivate this problem through a number of application scenarios, and model security against distance fraud (DF), Man-in-theMiddle (MiM), and collusion fraud (CF) attacks. We prove impossibility of security against these attacks without making physical assumptions. We propose approaches to the construction of secure protocols under reasonable assumptions, and give detailed design of our DLB protocol and prove its security using the above model. This is the first treatment of the DLB problem in the untrusted prover setting, with a number of applications and raising new research questions. We discuss our results and propose directions for future research.
In order to promote the internationalization of higher education in China and attract more talented international students, it is important to study which factors are highly motivational for international students. This paper analyzes the academic, employment, and cultural factors that motivate international students to come to China for higher education. Results show that academic reputation and quality are considered by many international students as one of the most critical factors influencing their choice of university, while the quest for international qualification is the basic motivation and schooling support that help them subsist in a foreign country. From the perspective of employment, international students are attracted by the fast growth of China's economy, foreign-friendly employment policy as well as the international economic cooperation with its attendant business opportunities. Culturally, China's internationalization and multicultural development, and Chinese culture's attractiveness and inclusiveness are also contributing factors that motivate international students to come to China for higher education.
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