查询词典 B-complex

It is found that there is a co-relationship between the boron isotope and chemical composition of magmatic tourmaline: the δ〓B value increases with increasing Al and Li in Y-site of tourmalines. The low δ〓B values (-41. 1～-39. 01‰) in Altay No. 3 pegmatite, which is one of the lowest values found by now, imply that non-marine evaporites might exist in magma source, or the pegmatitic magma had been assimilated by them during its intrusion and emplacement.

阿尔泰3号伟晶岩最初形成的结构带中电气石的B同位素组成是目前所发现的最低值之一(-41.11～-39.01‰)，指示形成伟晶岩脉的初始岩浆可能由含非海相蒸发岩的泥质岩经变质深熔作用形成，或是伟晶岩岩浆在上侵定位过程中同化了含非海相蒸发岩地层的结果。

There are many high risk factors of recurrence and death after resection of stage B large intestinal cancer patients.The main factors influencing the long-term survival of stage B large intestinal cancer patients are bowel obstruction,tumor necrosis,and perineurial invasion.

B期大肠癌切除术后复发和死亡的高危因素较多，影响其长期生存的因素主要是肠梗阻、肿瘤坏死和神经囊膜侵润，而与其它因素关系不大。

Levels of expression significantly increased after day 4 posttransplantation and persisted through the whole course of rejection, but levels of expression were obviously lower in the peripherial blood than those in portal vein blood. In contrast, the control group showed no expression of mRNA for perforin and granzyme B in portal vein and peripherial blood.

结果 急性排斥肝移植组术后3天门静脉和外周血中均有穿孔素和颗粒酶B基因mRNA表达，4天后表达明显增强，并贯穿整个排斥反应的全过程，但外周血表达的强度明显较门静脉血为弱，同基因对照组术后14天内无穿孔素和颗粒酶B基因表达。

Methods Ampicillin inhibitionof E. coli Top10 pcs+ was tested at first, and then b-lactamase activity in periplasm was examined.

然后再使用抗生素抗性分析、b-内酰胺酶的酶活测定以及Western blot杂交技术，分析质粒编码的b-内酰胺酶从细胞质到细胞间质的分泌情况。

Western blotting confirmed that the low activity of b-lactamase in E. coli Top10 pcs+ resulted from a lower amount of b-lactamase in its periplasm.

由此可见，周质内低含量的b-内酰胺酶是导致E.coli Top10 pcs+细菌氨苄青霉素抗性降低的原因。

Vibrio cholerae adherence to and colonization in the small intestine are essential step in the pathogenesis of cholera. At least one type of pili, known as TcpA, is required for the colonization process. This paper reports the electron microscopic evidence showing that V. cholerae 01 and 0139 serogroups can express at least 4 types of pili when incubated at 28℃ on AKI agar or CFA (pH6.8). Among the four types, three can be expressed by classical and El Tor strains of Vibrio cholerae 01: TcpA pili are peritrichous,being 7-8nm in diameter, 5-10μm in length, and form bundles of parallel undulating filaments of 0.5-0.8 μm wide and 10-15μm long; Type B are 3-4nm in diameter, up to 2μm long, and of wavy morphology; Type C are 7-8nm wide and 0.5-0.8μm long.

本文通过电子显微镜对01群霍乱弧菌古典生物型和El Tor生物型以及0139群霍乱弧菌研究发现，在培养基AKI和CFA(pH6.8)28℃培养条件下，01群EVC和CVC均可产生TcpA，B型和C型菌毛；0139群霍乱弧菌可产生TcpA和B型菌毛，与01群一致。

Methods:Fifty-six patients with metacarpal and phalangeal fractures who were reviewed in the study were divided into two groups:Group A and Group B.Thirty-two patients in Group A were treated with open reduction,Kirschner internal fixation and postoperative plaster splint external fixation.Other 24 patients in Group B were treated with open reduction,Mini-plate internal fixation,without any external fixation.

回顾分析经完整随访的56例掌指骨骨折患者的治疗和康复情况，A组：32例掌指骨骨折患者予以行切开复位交叉克氏针内固定接骨术，术后石膏夹板外固定；B组：24例掌指骨骨折患者予以行切开复位微型接骨板内固定接骨术，术后未用外固定。

In this study, we investigated the protective effects of NaHSO3 on the physiological and biochemical processes of Phaseolus vulgaris leaves under enhanced UV-B radiation.

为了减轻UV-B辐射对植物叶片的伤害，本研究以离体红芸豆叶片为实验材料，通过外源施加NaHSO3的方法探讨了UV-B辐射下NaHSO3 对离体红芸豆叶片的保护作用。

Compared with pheophytin a and pheophytin b, the Soret bands of Cd-pheophytin a and Cd-pheophytin b red shifted by 19nm and 11nm, respectively.

6制备、分离和纯化得到镉叶绿素a和b的配合物，比较了它们与相应天然叶绿素的光谱性质。

METHODS: The latencies and amplitudes of wave a and b of F-ERG were recorded and analyzed in 20 cats for photopic adaptation duration of 5, 15, 30, 60 seconds; 3, 5, 10, 20, 30 minutes under standard stimulating condition.

成年家猫37只，全麻状态下暗适应20min后开启背景光计时，在明适应5， 15， 30， 60s；3， 5， 10， 20， 30min用相同强度的光刺激、采集并记录分析不同明适应时间点F-ERG的a， b波的峰潜时及振幅并描出a， b波的振幅变化曲线图。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。