因“势”而动,势必精彩——以“法律为我们护航”为例

在生本理念下,教学活动必须立足学生实际展开已成为教师的共识。在教学的准备和实施阶段,准确把握学生的认知心理和能力并对其发展的“势”头做出预判,在此基础上因“势”而动,力求做到因“势”而谋、应“势”而融、乘“势”而导、顺“势”而引,可以有效提升教学的针对性和实效性,增强教学的灵活性和开放性,从而助力课堂走向精彩。

On the Coupling of φ Meson to Nucleons and Backward φ Production

Some analyses of the electromagnetic form factors of the nucleon and some analyses of the nucleon-nucleon potential favor a large coupling of the φ meson to nucleons. This is frequently quoted by advocates of a large ss component of the nucleon. It is shown that such large OZI-violating couplings are incompatible with data on φproduction in backward direction via nucleon exchange.