变曲点

For a monotone twist map the well-known Birkhoff fixed point theoremsays that the circles with rational rotation number will break up whence a finitenumber of pairs of periodic points arise,half of which are elliptic and the othershyperbolic.Moreover,around each elliptic periodic point a few of new invariantcurves will appear and make a picture of phase space with a self-similar structure.Again one may ask is there a similar picture for higher dimensional Hamiltoniansystems?

对于单调扭转映射，著名的Birkhoff不动点定理指出，在通有情况下旋转数为有理数的不变曲线一般会破裂，在原来的不变曲线附近会产生有限多对周期点，其中一半是双曲的，一半是椭圆的，而在椭圆型周期点的周围又会产生一圈圈的不变曲线，使得椭圆周期点附近的动力学行为和整个相空间的动力学行为十分相象，换句话说，整个相空间具有无限嵌套的自相似结构，自然又产生了一个问题：对于自由度数目大于2的高维哈密顿系统，其相空间是否有类似的图象？

Results The dermatophagoides farinae and pteronyssinus (62/118) were the most common allergen in inhalation group in 118 patients with allergic disease. Dogly or feline scurf was the next (35/118), then were ambrosia artemisiiofolia and muguort (14/118), cockroach(12/118), cypress, elm, Surname. Cottenuood (8/118), humulus scandens (7/118), polyvalent fungus(6/118). In food group the most common allergen was mutton or beef (13/118), then was cashew, peanut, soybean (11/118), wheat (10/118),milk (9/118), fish, shrimp, crab(5/118), mango(4/118),egg, chicken., yolk(1/118).The positive rates of total IgE level was 35.59%.

结果 118例变应性鼻炎患者中吸入组过敏原以以屋尘螨粉、尘螨(62/118)为最高，其后依次为猫毛皮屑、狗毛皮屑(35/118)、矮豚草、蒿(14/118)、蟑螂(12/118)、柏榆、梧桐、柳三角叶杨(8/118)、律草(7/118)、点青霉、分枝孢霉、烟曲霉、交链孢霉(6/118)；食入组过敏原以牛肉、羊肉(13/118)为最高，其后依次为腰果、花生、黄豆(11/118)、小麦(10/118)、牛奶(9/118)、鱼虾蟹(5/118)、芒果(4/118)、鸡蛋白、鸡蛋黄(1/118)；总IgE阳性率为35.59%。

Culm sheaths yellow-green or pale red-brown, becoming straw-colored, with variably sized brown spots, base edged with white pubescence; auricles and oral setae absent; ligule yellow-green, truncate or weakly convex at apex, very short, 1–2 mm, margin longer pale green ciliate; blade reflexed, green, with yellow margins, linear, flat or crinkled in upper sheaths.

竿箨黄绿色或者苍白的红棕色，变得稻草色，带有易变依大小排列的棕色的点，基础随着白色的青春期推进；叶耳和口头的刚毛无；叶舌黄绿色，削去或者身体虚弱凸在先端，非常短，1-2毫米，边更长的苍绿色纤毛虫；反折，绿色的叶片，具黄边缘，在上面鞘内皱曲的线形，平或。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。