发生

It is emphasized that we ought to pay attention to the historical ontogeny in the historical systemic pressure when we study a specific historical systemic genesis.

其中所涉及到的史学方法论，基本思路是：（1）在研究历史的个体发生时，应当兼顾历史的系统发生；强调在历史实证的基础上进行理想化抽象。

Massive apoptotic events are induced in the mutant gonads, leading to the abolishment of both spermatogenesis and oogenesis.

在Sun1基因剔除的小鼠性腺中，生殖细胞的大量凋亡导致精子发生和卵子发生被完全破坏。

Yolk forming stage didnt exist in workers. AR played an important role in oogenesis of termites.

表明雄激素受体在白蚁的卵子发生过程中有重要作用，工蚁和繁殖蚁在卵子发生的早期是相同的。

And it is found that oogenesis in Drosophila and ant is similar to theoocyte apoptosis. Yolk mainly occurred in the early stage of apoptosis, which may bedue to environmental factors such and is the adaptability of the adverse environmentalmeasures.

并发现，拟黑多刺蚁与果蝇卵子发生有相似的卵母细胞凋亡现象，主要发生在卵黄形成前期，这种凋亡可能是由于环境因素的影响，对不良环境的适应性对策。

These results provide a new proof of AR participating in the regulation of oogenesis development. 4. The immediate early-gene c-fos palys an important role in cell multiplication and differentiation.

这是我们首次在白蚁卵子发生过程中发现AR，并对非繁殖蚁和繁殖蚁生殖细胞发育的激素调节进行了对比，为进一步探讨AR在昆虫卵子发生中的调节机制提供了依据。

RB gene ; Expression ; Spermatogenesis ; Oogenesis ; Kunming Mice

RB基因；基因表达；精子发生；卵子发生；小鼠

The oogenesis of P. esculenta can be divided into the following phases in morphological characteristics of oogonium and oocyte development: the proliferative phase of oogonium (0μm in diameter), the initial growth phase of oocyte (10—20μm in diameter), the grand growth phase-Ⅰof oocyte (20—60μm in diameter), the grand growth phase-II of oocyte (60μm×70μm to 120μm×145μm in size), the mature phase of oocyte, and the declining phase, showing a dynamic changes in oogenesis of P. esculenta .

以卵原细胞与卵母细胞发育的形态学特征为依据，将可口革囊星虫的卵子发生过程划分为：卵原细胞增殖期(卵径0μm)、卵母细胞小生长期(卵径10—20μm)、卵母细胞大生长期Ⅰ(卵径20—60μm)、卵母细胞大生长期Ⅱ[大小为(60μm×70μm)—(120μm×145μm)]、卵母细胞成熟期及退化期6 个阶段，反映了可口革囊星虫卵子发生过程的动态变化。

Of 259 women who chose oophorectomy, 6 (2.3%) had a stage I ovarian tumor diagnosed at surgery, and 2 (0.8%) later developed primary peritoneal cancer.

而在选择进行卵巢切除术的259位女性中，有6人(2.3%)在手术时诊断发生I期卵巢癌。有两人(0.8%)后来发生原发性腹膜癌。

"Prophylactic oophorectomy should not be recommended to women with a high risk of breast cancer who do not have documented mutations in BRCA1 or BRCA2, since these cases may be linked to mutations in unidentified genes that do not increase the risk of ovarian cancer," he writes."The effectiveness of prophylactic oophorectomy in carriers of BRCA mutations provides a strong rationale for genetic testing in women with a strong family history of cancer."

不应该对乳腺癌发生危险较高，但没有明确的BRCA1或者BRCA2突变的女性，推荐进行预防性卵巢切除术，因为这些情况也许与未知的，与卵巢癌的发生无关的基因突变有关，」他写道：「对於BRCA突变体携带者进行预防性卵巢切除术，为有很强的肿瘤家族史的女性，进行遗传学检查，提供了强有力的依据。

To the oosperm with not stable bed of this kind of move, although pregnant woman does not drop,oosperm is worn the pregnant woman with stable bed, drop quite again sometimes and do not produce miscarriage.

对这类着床不稳定的受精卵，即使孕妇不跌跤也可能发生流产；而受精卵着床稳定的孕妇，有时跌得挺重而不发生流产。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。