始对象(initial object)是范畴论的基本概念之一,指在范畴论中起着特殊作用的一类对象,是终对象的对偶概念,它们都是零对象的推广。设C为范畴,A∈C,若对一切B∈C,Hom(A,B)都只有一个元素,则称A为范畴C的始对象,C的任何两个始对象必是等价(同构)的。例如,阿贝尔群范畴的始对象为0(零群)。
拥有扰乱人体免疫系统的能力—病毒作为可能的自身免疫疾病始动因子通常是免疫学家们感兴趣的研究对象。
Viruses have always attracted the interest of immunologists as possible triggers of autoimmune diseases due to their ability to interfere with the host's immune system.
自2012年始,学校专设了留学生奖学金,奖励对象为在校本科、硕士留学生。
In 2012, the university started the International student Scholarship awarded to students registered for Bachelor's and Master's programs.
应用推荐