幼儿园常见的幼儿性问题及处理方式

幼儿园是幼儿白天游戏和生活的主要场所,因此,幼儿生理或心理的许多问题也会在这个场所表现出来,作为幼儿教师有责任帮助幼儿克服这些方面的不良行为习惯。本文浅谈幼儿自慰(手淫)行为及处理方式。一、幼儿的自慰(手淫)

正确对待幼儿的自慰行为

幼儿自慰行为,是指幼儿用手或其他方式刺激自己生殖器的现象,如采取夹腿的姿势,骑坐在某些物件(娃娃、枕头或桌椅的棱角)上,通过触碰生殖器以达到快感。几乎所有儿童在生长发育过程中均会出现这种表现,不到1岁就可能发生,幼儿期和青春期比较明显。

Surgical treatment of locally advanced anal cancer after male-to-female sex reassignment surgery

We present a case of a transsexual patient who underwent a partial pelvectomy and genital reconstruction for anal cancer after chemoradiation. This is the first case in literature reporting on the occurrence of anal cancer after male-to-female sex reassignment surgery. We describe the surgical approach presenting our technique to avoid postoperative complications and preserve the sexual reassignment.

Study of light signal receptor of Stephanopyxis palmeriana during sexual reproduction

We collected centric diatom Stephanopyxis palmeriana samples in coastal waters of Xiamen for charac- teristic red light/far red light (R/FR) phytochrome reactions to identify its photoreceptor in the course of sexual repro- duction. The result showed that pre-illumination of 2-3h red light before darkness could induce sexualization of S. palmeriana, while the follow-up illumination of far red light could reverse the effect of red light, which is a featured reaction of phytochrome. The Southern Dot Blot was carried out to identify the type of phytochrome that induces the sexualization. The result also showed high homogeneity of DNA fragment of S. palmeriana with phyB, but phyA. This means the photoreceptor in the process of sexual reproduction of S. palmeriana is phytochrome B (phyB).

为什么我成了“大叔控”?

24岁的晓薇是一个典型的"大叔控",频频爱上长辈男人给她带来很多麻烦,令她困惑不已。尽管她现在是成熟女性,但她的病态心理却源自童年的不快经历。两段不该发生的恋情晓薇今年24岁,原籍武汉,一年半前从上海一所著名高校毕业,如今在上海一家外贸公司工作。她第一次找到我咨询,我看出她有很强烈的倾诉欲望。她说她在上海举目无亲。