Results 161 to 170 of about 39,766 (300)
Background – Recurrent urticaria is common in horses. The pathophysiology is poorly understood and treatment options are limited. Often only glucocorticoids are effective for controlling clinical signs, albeit with potential adverse effects. Studies investigating new treatments need a validated objective scoring system for the grading of skin lesions ...
Katharina Birkmann+5 more
wiley +1 more source
乙型肝炎病毒BCP、PreC和C区基因突变与母婴传播免疫失败的相关性
【目的】 探讨BCP、PreC和C区基因突变率及突变热点与HBV母婴传播免疫失败的关系。【方法】 选取血清HBsAg阳性且HBV DNA定量>1000U/mL的孕妇,以所分娩的新生儿是否发生免疫失败和孕妇血清HBV DNA定量水平将孕妇分为免疫失败组(19例)和对照1组(免疫成功且HBV-DNA定量≥1.0 × 107 U/mL,48例)、对照2组(免疫成功且HBV-DNA定量<1.0 × 107 U/mL,38例)。对3组孕妇血中HBV进行BCP/PreC/C区基因PCR扩增和测序 ...
doaj
A brief historical perspective of otitis externa in dogs
Abstract Background The history of otology and otitis externa (OE) goes back to the earliest days of medicine, with notations made in early Egyptian writings and evolving to our modern‐day textbooks and publications. Conclusions and Clinical Relevance The history of OE in dogs is closely tied to the history of otology and veterinary dermatology, and ...
James Owen Noxon
wiley +1 more source
提出了一种基于多步插值的频偏估计算法,用于相干光通信中数字相干接收机的频偏估计补偿。该算法首先采用少量的数据点作FFT(快速傅里叶变换),粗估计出频偏值,然后采用DFT(离散傅里叶变换)进行多步插值计算,降低了计算复杂度。在一个28GBaud的QPSK(正交相移键控)仿真系统中进行了仿真验证,结果表明,与最新报道的LS(最小二乘)算法相比,该文所提算法可以大大降低现有算法的复杂度。
李海涛+6 more
doaj
Summary Environmental changes and their effects are among the most pressing topics of today's ecological research. Shrublands, although widespread across the globe, remain understudied in this respect. We conducted a global meta‐analysis of 81 shrubland sites subjected to experimental warming, shifts in precipitation (e.g.
Daijun Liu+11 more
wiley +1 more source
非糖尿病急性冠脉综合征住院患者HDL-C、 LDL-C/HDL-C水平回顾性分析
摘 要:【目的】 回顾性分析非糖尿病急性冠脉综合征HDL-C、LDL-C/HDL-C水平及冠脉病变相关性。【方法】 选择本院2011.05-2015.05 住院符合急性冠脉综合征诊断标准并无2型糖尿病患者306例为研究对象,选择同期住院符合急性冠脉综合征诊断标准并确诊为2型糖尿病患者174例,以及冠脉造影正常无糖尿病患者 258例为对照,所有患者均行冠状动脉造影检查。将前降支、回旋支或右冠脉中任何一支狭窄≥50%为单支病变组;前降支、回旋支或右冠脉中任何两支病变≥50%及左主干病变为双支病变组;将前降支、
doaj
强不可约算子的<italic>K</italic><sub>0</sub>群及其近似相似不变量 [PDF]
瑞 石, 华 何, 秀娟 马
openalex +1 more source
Summary Podocarpus pollen morphology is shaped by both phylogenetic history and the environment. We analyzed the relationship between pollen traits quantified using deep learning and environmental factors within a comparative phylogenetic framework.
Marc‐Élie Adaimé+4 more
wiley +1 more source