検索結果 - Yanjie Wang

This paper presents a broadband monolithic microwave integrated circuit (MMIC) frequency doubler within a 20-40GHz frequency operation range in a <inline-formula> <tex-math notation="LaTeX">$0.15\mu $ </tex-math></inline-formula>m GaAs p-HEMT process. A broadband ba...

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Mycoplasma often surreptitiously contaminates cell cultures without detection, mainly parasitizing the cell surface and thus interfering to some extent with the cells. Direct DNA staining of cell cultures often yields equivocal results and will only reliably detect heavily contaminated cultures. Int...

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ObjectiveTo investigate the prenatal ultrasound image features and diagnostic value of fetal esophageal atresia (EA).MethodsThe clinical and prenatal ultrasound data of 24 fetuses with suspected esophageal atresia diagnosed by prenatal ultrasound and/or postpartum ultrasound at Shandong Maternal and...

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A species of acanthocephalan collected from the hindgut of Larimichthys crocea was identified as Longicollum pagrosomi Yamaguti, 1935 based on morphological characteristics. The complete mitochondrial genome of this parasite was sequenced. The mitogenome exhibited a circular structure with a total l...

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<h4>Background</h4>Female sex workers have been the target of numerous sexually transmitted infection (STI) prevention strategies in China, but their male clients have attracted considerably less public health attention and resources. We sought to systematically assess the prevalence of...

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<h4>Background</h4>Commercial sex is one of the major modes of HIV transmission in China. Understanding HIV risk behaviours in female sex workers (FSW) is of great importance for prevention. This study aims to assess the magnitude and temporal changes of risk behaviours in Chinese FSW.&l...

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