毛绥螨属新种记述和已知种再描述与更正(蜱螨亚纲:革螨股:裂胸螨科)

记述毛绥螨属2新种:小板毛绥螨Lasioseius plateculus sp.nov.和黄河毛绥螨Lasioseius huangheensis sp.nov..同时对王氏毛绥螨Lasioseius wangi Ma,1988进行再描述,并对廖氏毛绥螨 Lasioseius liaohaorongae Ma,1996进行更正.     

毛绥螨属一新种(蜱螨亚纲：裂胸螨科)

报道列胞螨科Aceosejidae Baker et Wharton,1952毛绥螨属Lasioseius Berlese,1916一新种,即青海毛缓螨Lasioseius qinghaiensis sp.von.。     

毛绥螨属3新种记述（蜱螨亚纲：中气门目：裂胸螨科）

记述毛绥螨属3新种：矩殖毛绥螨Lasioseius orthocegenitalis sp. nov.,林氏毛绥螨Lasioseius linjianzheni sp. nov.和张氏毛绥螨Lasioseius zhangyanxuanae sp. nov.。     

毛绥螨属1新种和囊螨属1新种（蜱螨亚纲：裂胸螨科,胭螨科）

描述廖氏毛绥螨,新种Lasioseius jilinsimilis sp.nov.和植囊螨,新种Ascaplantaria sp.nov.     

全雪螨属1新种和匙毛绥螨雄螨新发现(蜱螨亚纲:中气门目:裂胸螨科)

本文记述全雪螨属1新种:菱形全雪螨Panteniphis rhombus sp.nov.,并描述匙毛绥螨Lasioseius spatulus Gu et Wang,1990雄螨。     

裂胸螨科4新种和中国2新纪录属：蜱螨亚纲：革螨股

记述裂胸螨科4新种:陈氏毛绥螨Lasioseius chenpengi sp.nov.,杵状肛厉螨Proctolaelaps pis-tilli sp.nov.,疏毛北绥螨Arctoseius oligotrichus sp.nov.和巨肛伊(虫穴)螨中Iphidozercon magnanalis sp.nov.。其中北绥螨属Arctoseius Thor,1930和伊(虫穴)螨属Iphidozercon Berlese,1903为中国首次纪录。     

多毛毛绥螨重新命名和2已知种雄性及后若虫形态描述（蜱螨亚纲，中气门亚目）

多毛毛绥螨Lasioseius multisetus Ma et Bai,2006为无效的异物同名,本文重新命名为宁夏毛绥螨Lasioseius ningxiaensis Bai．Ma＆Yan（裂胸螨科）。首次记述长茎浩伦螨Holaspulus tenuipes Berlese,1904（派盾螨科）第二若虫和李氏广厉螨Cosmolaelaps liaeBai et Gu,1993（厉螨科）雄性。     

毛绥螨属六新种(蜱螨亚纲:裂胸螨科)

毛绥螨属Lasioseius Berlese隶属于裂胸螨科Aceosejidae,国内仅有过混毛绥螨L. confusus,Evans的纪录。本文绘图描述了采自贵州和陕西省啮齿类体上的毛绥螨属6新种:匙毛绥螨L. spatula sp. nov. 贫板毛绥螨L. paucispathus sp. nov.、裂毛绥螨L. schizopilus sp. nov.、黔毛绥螨L. qianensis sp. nov.、点毛绥螨L. punctatus sp. nov. 及多板毛绥螨L. multispathus sp. nov.。文中列举各新种的宿主与采集纪录及与相近种类的鉴别。     

乳突寄螨雌螨描述(蜱螨亚纲: 革螨股: 寄螨科)

乳突寄螨 Parasitus mammillatus ( Berlese,1 90 4 )雌螨 ,在所查到的文献中 ,仅记载有生殖区、头盖和螯钳的形状 [1 ,2 ] ,无其它描述。国内根据丹东标本曾描述该螨雄螨和后若螨 [3] 。本文根据朝鲜标本详细描述其雌螨。文中测量单位为 μm,括号内为测量均值。图 1- 7　乳突寄螨 Parasitus mammillatus (Berlese)1.背面 ;2 .腹面 ;3.头盖 ;4 .螯钳 ;5 .颚角 ;6 .须肢 ;7.跗节 乳突寄螨 Parasitus mammillatus ( Berlese,1 90 4 )雌螨 (图 1 - 7)体黄色 ,卵圆形 ,长 71 2 - 793( 758) ,宽 4 0 2 - 483( 4 50 )。背板覆盖整个背面 ,前背…     

钝绥螨属2新种和东方盲走螨雄螨及若螨描述(蜱螨亚纲:革螨股:植绥螨科)

记述钝绥螨属 2新种 :拟大钝绥螨 Amblyseius submagnus sp.nov.和似巨钝绥螨 Amblyseiusgrandisimilissp.nov.,同时描述东方盲走螨 Typhlodromusorientalis Wu,1 981雄螨和若螨。模式标本存于全国鼠疫布氏菌病防治基地 ,吉林省白城市。     

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.