青海多毛蚤属一新种记述（蚤目：多毛蚤科）

本文报道多毛蚤属Ｈｙｓｔｒｉｃｈｏｐｓｙｌｌａ的一新种,文贞多毛蚤Ｈ．ｗｅｎｚｈｅｎｉ ｓｐ．ｎｏｖ．,新种与近缘种圆凹多毛蚤Ｈ．ｒｏｔｕｎｄｉｓｉｎｕａｔａ,多刺多毛蚤Ｈ．ｍｕｌｔｉｄｅｎｔａｔａ和尼泊尔的Ｈ．ｓｙｎａｐｔｉｃａ接近而又有明显区别,新种采自青海省同德县的斯氏水麝鼠句Ｃｈｉｍａｒｒｏｇａｌｅ ｓｔｙａｎｉ,标本存青海省地方病防治研究所。     

中国西部纤蚤属两新种记述（蚤目：多毛蚤科）

本文报道了采自我国西部纤蚤属Ｒｈａ－ｄｉｎｏｐｓｙｌｌａ Ｊｏｒｄａｎ ｅｔ Ｒｏｔｈｓｃｈｉｌｄ,１９１２两新种;乌兰纤蚤Ｒｈａｄｉｎｏｐｓｙｌｌａ ｕｌａｎｇｅｎｓｉｓ Ｃａｉ ｅｔ Ｗｕ,ｓｐ,ｎｏｖ。和西藏纤蚤Ｒｈａｄｉｎｏｐｓｙｌｌａ ｘｉｚａｎｇｅｎｓｉｓ Ｃａｉ,Ｌｉ ｅｔ Ｚｈｅｎｇ,ｓｐ。ｎｏｖ。模式标本存放在作者单位。     

古蚤属一新种记述（蚤目：多毛蚤科）

本文记述采自经省神农架林区古蚤属Ｐａｌａｅｏｐｓｙｌｌａ Ｗａｇｎｅｒ,１９０３－新种,巫山古蚤Ｐａｌａｅｏｐｓｙｌｌａ ｗｕｓｈａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．,模式标本存于湖北省医学科学院寄生虫病研究所。     

云南苍山古蚤属一新种和怒山古蚤雄性的记述（蚤目;多毛蚤科）

本文记述采自云岭南端大理苍山多齿鼠鼹Ｎａｓｉｌｌｕｓ ｇｒａｃｉｌｉｓ的古蚤属一新种,即荫生古蚤Ｐａｑｌａｅｏｐｓｙｌｌａ ｏｐａｃｕｓａ ｓｐ。ｎｏｖ。和怒山古蚤Ｐａｌａｅｏｐｓｙｌｌａ ｎｕｓｈａｎｅｎｓｉｓ Ｇｏｎｇ ｅｔ Ｌｉ,１９９２的雄性形态,文中对古蚤属短额种团ｂｒｅｖｉｆｒｏｎｔａｔａ－ｇｒｏｕｐ的特征,主及其分布进行了讨论并列出了已知种的检索表。     

朝鲜叉蚤一新亚种记述：（蚤目：多毛蚤科）

本文记述了采自湖北省神农架林区叉蚤属Ｄｏｒａｔｏｐｓｙｌｌａ的一新亚种,命名为朝鲜叉蚤湖北亚种,新亚种Ｄｏｒａｔｏｐｓｙｌｌａ ｃｏｒｅａｎａ ｈｕｂｅｉｅｎｓｉｓ ｓｓｐ．ｎｏｖ．标本存于湖北省医学科学院寄生虫病研究所。     

青海南部盖蚤属一新种：（蚤目：角叶蚤科）

本文记述盖蚤属Ｃａｌｌｏｐｓｙｌｌａ一新种,囊形盖蚤Ｃａｌｌｏｐｓｙｌｌａ ｂｕｒｓｉｆｏｍａ ｓｐ．ｎｏｖ．。新种采自青海省囊谦县的针叶林中,宿主为灰鼯鼠和小飞鼠。     

栉眼蚤属一新种记述：蚤目：多毛蚤科

本文记述１９８９年５月在湖北省神农架林区捕获的褐家鼠体上采到的一新种跳蚤鄂西栉眼蚤Ｃｔｅｎｏｐｈｔｈａｌｍｕｓ ｅｘｉｅｎｓｉｓ ｓｐ．其形态与似种近甘肃栉眼蚤Ｃｔｅｎｏｐｈｔｈａｌｍｕｓ ｇａｎｓｕｅｎｓｉｓ Ｗｕ,Ｚｈａｎｇ ｅｔ Ｗａｎｇ,１９８２和短突栉眼蚤Ｃ．（Ｓ．）ｂｒｅｖｉｐｒｏｊｉｃｉｅｎｓ Ｌｉ ｅｔ Ｈｕａｎｇ,１９８０进行了比较。     

狭臀蚤属一新种记述（蚤目：多毛蚤科）

本文记述狭臀蚤属Ｓｔｅｎｉｓｃｈｉａ Ｊｏｒｄａｎ,１９３２一新种,鄂西狭臀蚤Ｓｔｅｎｉｓｃｈｉａ ｅｘｉｅｎｓｉｓ ｓｐ．ｎｏｖ．采自湖北省西北部神农架林区的短属鼠句Ａｎｏｕｒｏｓｏｒｅｘ ｓｑｕａｍｉｐｅｓ ｓｑｕａｍｉｐｅｓ、川鼠句Ｂｌａｒｉｎｅｌｌａ ｑｕａｄｒａｔｉｉｃａｕｄａ ｇｒｉｓｅｌｄａ和大林姬鼠Ａｐｏｄｅｍｕｓ ｓｐｅｃｉｏｓｕｓ体上,正模标本♂和配模标本♀保存于福建医学昆虫研     

四川黑水多毛蚤属一新种（蚤目：多毛蚤科）

四川黑水多毛蚤属一新种（蚤目：多毛蚤科）李贵真,刘连珠贵阳医学院生物学教研室,贵州省贵阳市５５０００４第三军医大学寄生虫学教研室,四川省重庆市６３００００关键词蚤目,多毛蚤科,多毛蚤属,新种四川我们在整理早年所采蚤类标本时,发现采自四川黑水的多毛蚤１...     

中国栉眼蚤属两新亚种记述(蚤目:多毛蚤科)

根据１９８８年以来,人采自浙江省景宁,永嘉等县的标本,记述了栉眼蚤属两新亚各,即台湾栉眼蚤浙江亚种Ｃｔｅｎｏｐｈｔｈａｌｍｕｓ（Ｓｉｎｏｃｔｅｎｏｐｈｔｈａｌｍｕｓ）ｔａｉｗａｎｕｓｚｈｅｊｉａｎｇｅｎｓｉｓＬｕｅｔＱｉｕ,ｓｓｐ．ｎｏｖ和短突栉眼蚤永嘉亚种Ｃｔｅｎｏｐｈｔｈａｌｍｕｓ（Ｓｉｎｏｃｔｅｎｏｐｈｔｈａｌｍｕｓ）ｂｒｅｖｉｐｒｏｊｉｃｉｅｎｓｙｏｎｇｊｉａｅｎｓｉｓ,Ｌｕ,Ｚｈａｎｇ,     

Selection with two alleles and complete dominance

For a plant selection model with frequency-independent viabilities, fertilities and selfing rates, it is shown that apart from global fixation, for certain parameter combinations a protected polymorphism and facultative fixation (either allele may become fixed according to initial frequencies) may both occur. Facultative fixation requires different selling rates for the dominant and recessive type. Protection of the polymorphism requires resource allocation for male and female function. In this connection the problem of purely genetically caused population extinction is discussed.
For general frequency dependence and regular segregation, the chances for establishment of a completely recessive gene are compared to those of a completely dominant gene. It is proven that the process of establishment of the recessive gene, despite a fitness advantage, may be considerably endangered by drift effects if random mating prevails. The recessive gene may reach the same effectivity in establishment as a dominant gene, only if the recessive homozygote mates exclusively with its own type during the period of establishment.     

杆状病毒出芽病毒粒子膜融合蛋白的研究进展

杆状病毒是一类感染节肢动物的病原微生物,其基因组为双链环状DNA,大小为80～180kb.     

Inception of the Modern Public Health System in China and Perspectives for Effective Control of Emerging Infectious Diseases: In Commemoration of the 140th Anniversary of the Birth of the Plague Fighter Dr. Wu Lien-Teh

In this article, we systematically review Dr. Wu Lien-Teh's academic achievements and outstanding contributions in the prevention and control of the plague epidemic in northeast China and introduce the development of the earliest public health epidemic prevention system in China in order to commemorate the 140th anniversary of Dr. Wu Lien-Teh's birth. We hope that this article will provide insights into the effective prevention and control of emerging infectious diseases as well as the current worldwide pandemic of COVID-19, facilitating the improvement and development of public health systems in China and around the globe.