查询词典 D.D.

Synthesis of 2, 6-Bis (4-chloromethylphenyl) Benzo [1, 2-d; 5, 4-d'] Disoxazole

2，6-二（4-氯甲基苯基）苯并[1， 2-d； 5， 4-d']二噁唑的合成，张田林；马臣华；王丽-66文免费论文库，大学生论文库

With α-D-glucose as raw material, 3-O-benzoyl-1,2,5,6-O-diisopropylidene-α-D-allofuranose was synthesized by isopropylene protection , oxidation, reduction and benzoylation.

以α-D-葡萄糖为原料，经异丙叉基保护、氧化、还原、苯甲酰化反应合成3-苯甲酰基-1，2，5，6-氧-二异丙叉基-α-D-呋喃阿洛糖。

Floral organ determination is best explained by the ABCDE model postulated by genetic studies of Arabidopsis thaliana. Sepals are determined by A and E class genes; petals are determined by A, B, and E; stamens by B, C, and E; and carpels by C and E class genes. A, B, C, and E class gene lineages are known having duplicated several times during the evolution of angiosperms. One of the noted major duplication events occurred in the origin of the early angiosperms, leading to the formation of subgroups of B/C/D/E class. Another one occurred near the basal eudicots and gave rise to further subgroups in A/B/C/D/E class genes among core eudicots. The phylogenetic position of the family Buxaceae is located right where the second major duplication of ABCDE genes might have occurred, which is supported by multiple gene (nuclear 18S rDNA, chloroplast rbcL and atpB) phylogenetic analyses.

目前经由模式植物阿伯芥的研究，建花部器官决定基因的调控，即花萼由A、E 群基因共同决定，花瓣由A、B、E 群基因，雄蕊由B、C、E 群基因，而心皮由C 和E 群基因决定。A、B、C、E 四群基因在被子植物的演化过程中发生过次的复制事件，其中比较重要的一次发生在早期被子植物演化出之时，形成B/C/D/E 群基因的次系群；另一次复制事件则发生在真双子植物基群附近，形成仅於核心真双子植物的A/B/C/D/E 群基因之次系群。

Along with the process of treating time and the increase of the cadmium concn., the chlorophyll content of D. caryophyllus was reduced. When D. caryophyllus leaves were treated by 5.0 mg/L cadmium for 20 d, the cadmium concn. showed a negative correlation to time, with correlation coefficient of-0.789. In the same treating time, the cadmium concn. showed significant negative correlation with chlorophyll content.

随着处理时间的推移和镉浓度的增加，石竹叶绿素含量在减小，镉为5.0 mg/L处理20 d时，镉浓度与时间相关系数为-0.789；在同一处理时间内，镉浓度与叶绿素均呈显著负相关。

The ovaries were excised in the group A, B, C, and the celiotomy was done in the group D (no-excise ovaries). Twelve weeks after the operation, group A, D were administed stilled water 10ml per kilogram every day; group B were administed extract of Bushen Yigu recipe 10ml per kilogram every day; group C were administed water solution of α-D3 soft gelatin capsule 10 ml per kilogram every day.

取12周龄Wistar雌性大鼠40只，随机分为模型组、治疗组、阳性时照组、正常对照组4组，每组10只。D组行假手术，其余3组行完整双侧卵巢摘除术，术后常规饲养12周。A、D组以蒸馏水10ml/kg灌胃，B组以10ml/kg补肾益骨方提取液灌胃，C组以10ml/kgα-D3胶丸水溶液灌胃。

We have found that microfilament of cytoplasm was decreased or disappeared and rate of lateral diffusion of ConA r ceptor was increased (D = 1.05 ×10-10cm2/ sec)after the cells were treated with CB. The microfilaments and the rate of lateral diffusion of ConA receptor on cell membrane were recovered D = 0.81 ?

经CB处理细胞后，胞质微丝减少或消失，但是膜ConA受体复合物的侧向扩散运动增加〔D〕=1.05×10~(-1)cm~2/sec，当除去CB后，微丝重新出现，膜ConA受体复合物的侧向扩散运动又减慢〔D〕=0.81×10~(-1)cm~2/sec，与对照组相似。

In summary, the present study revealed that Barrington's nucleus and D-region received direct projection fibers from the sacral spinal neurons in lamina I, parasympathetic nucleus and dorsal commissural nucleus; periaqueductal gray also received afferent projections from the lumbosacral spinal cord and sent projection fibers to the Barrington's nucleus and D-region.

上述结果说明：大鼠腰骶髓 I 层、骶髓副交感核和后连合核神经元发出的投射纤维直接终止于 Barrington's 核和 D 区内；导水管周围灰质也接受来自腰骶髓的投射纤维，同时发出纤维终止于 Barrington's 核和 D 区内。

Therefore, in the present study, a retrograde and anterograde experiments were made in the rat to address this issue. After injection of cholera toxin B subunit, a retrograde tracer, into Barrington's nucleus or D-region, some retrogradely labeled neurons were found in lamina I, sacral parasympathetic nucleus and dorsal commissural nucleus of the lumbosacral spinal cord segments. Injection of biotinylated dextran amine into lamina I, sacral parasympathetic nucleus and dorsal commissural nucleus, respectively, a large number of BDA-labeled axon terminals were seen in Barrington's nucleus and D-region.

发现，将逆行示踪剂霍乱毒素 B 亚单位（ Cholera toxin B subunit； CTb ）注射到 Barrington's 核或 D 区后，在大鼠腰骶髓 I 层、骶髓副交感核和后连合核内分布有一定数量的 CTb 逆标神经元；将顺行示踪剂结合生物素的葡聚糖胺(Biotinylated dextran amine； BDA)分别注射到腰骶髓 I 层、骶髓副交感核和后连合核内后， Barrington's 核和 D 区内出现大量顺行标记的轴突终末。

Result Based on the line graph of C.praecox var concolor and the data analysis on 5 groups of fresh weight of flower shoots, water balance, blooming rate, soluble sugar content and protein content, among 9 formula treatments in the orthogonal test, the formula of A2B2C3(900 mg/L penicillin+136 mg/L AgNO3+90 mg/L 8-HQ) had obvious effect of postponing the senescence of cutting-flower of C.praecox, which could keep the freshness of C. praecox var concolor for 15 d in winter and prolong the ornamental life by 6-7 d compared with CK.

结果］根据素心腊梅的折线图和花枝鲜重、糖含量、蛋白质含量、水分平衡值、开花率5组数据分析，在正交试验的9个处理中，以A2B2C3（青霉素900 mg/L+硝酸银136 mg/L+8-羟基喹咛90 mg/L）对延缓切花腊梅的衰老有明显的效果，在冬季条件下素心腊梅保鲜可达15 d，同时比对照延长观赏寿命67 d。

In this paper obtains the conclusion by the discrete property of integer: If a, b∈Z+, also a≤b, b-a=d, then d is one of 0,1,…,b-1 in these b integers; Theorem: a | b also a | c to abitrary x,y∈Z, has a | to promote to more sums; By promotes the cancellation from additivity of coresidual; By the prime number is the infinite inferential reasoning continual divisible number also is infinite.

论文中由整数的离散性得到结论：若a，b∈Z+，且a≤b，b-a=d，则d为0，1，，b-1这b个数中的一个；将定理：a | b 且 a | c 对任意的x，y∈Z，有a |推广到更多项的和；由同余的相加性推出相减性；由素数的个数是无限的推导出连续合数的个数也是无限的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。