宁夏中气门螨小志（蜱螨亚纲，中气门目）

本文报道宁夏中气门螨22科61属238种。其中厉螨科15属63种,寄螨科9属38种,血革螨科2属24种,赫刺螨科1属21种,裂胸螨科6属18种,巨螯螨科2属14种,6科共记录35属178种,占其种类的74．79％,是宁夏中气门螨的主要构成者。     

云南医学革螨数值分类研究

以云南省57种医学革螨作为分类单元,以形态特征为主列出60项分类性状特征来探讨云南省医学革螨不同属和种的亲缘关系。运用SPSS 11.5 统计软件中的系统聚类分析和主成分分析,对57种医学革螨进行了数值分类分析。结果显示：57种医学革螨划分为厉螨科（La elapidae）、寄螨科（Parasitidae）、皮刺螨科（Dermanyssidae）、赫刺螨科（Hirstionyssidae）和裂胸螨科（Aceosejidae）5个类群。赫刺螨属和棘刺螨属从厉螨科中分离出来另立为赫刺螨科,柏氏禽刺螨归入了皮刺螨科而不是巨刺螨科。分类结果与传统形态分类结果基本一致,因而认为数值分类能比较客观地反映医学革螨各分类阶元的分类地位与亲缘关系。     

辽宁革螨的生态地理分布

辽宁省已知的革螨46种,分属于5科19属.本文依据四个不同地理景观区内革螨的优势种、常见种和罕见种,对其生态地理分布作了讨论.(1)辽西低山丘陵及沿海平原区:本区共有革螨20种,其中仓鼠真厉螨、格氏血厉螨为优势种;塔山巨刺螨、长毛鞘厉螨为罕见种.(2)辽东山地及半岛丘陵区:本区共有革螨22种.半岛丘陵革螨优势种为仓鼠真厉螨、格氏血厉螨;辽东山地革螨优势种为耶氏厉螨与东方真厉螨.本区罕见种为赛氏血革螨、达呼尔血革螨、大连肪刺螨、三角血厉螨等.(3)辽河平原区:本区共有革螨20种.优势种为耶氏厉螨与厩真厉螨;乌苏里土厉螨为罕见种.(4)努鲁儿虎山脉北麓黄土丘陵台地及西辽河沙地区:本区共有革螨26种.优势种为东北血革螨、仓鼠真厉螨及格氏血厉螨.巨腹赫刺螨、鼬赫刺螨、拟小赫刺螨、半漠血厉螨、乌苏地厉螨、北野血革螨、楠本血革螨等为罕见种.     

青海省寄生螨类的区系分布

根据建国以来的大量研究调查资料,对青海地区已记载的寄生螨类（主要包括革螨、恙螨）计10科33属100余种进行了初步的区系分布、数量与宿主关系的探讨。（1）河湟谷地小区[1]：计有45种,主要有：赛氏血革螨、秉氏血革螨、旱獭青厉螨、毒厉螨、鼠兔赫刺螨、褪色巨螯螨、似田鼠新恙螨、旱獭新恙螨等;（2）柴达木盆地小区：计有15种,具代表性种类为乌兰纤恙螨;（3）祁连青南小区：计有85种,具代表性种类为久治真棒恙螨、玉树羽叶恙螨和朱雀禽棒恙螨;（4）羌塘高原小区：计有3种,皆为血厉螨属种类。     

中国血革螨科记述及一新属的建立：蜱螨亚纲：寄螨目

本文对中国血革螨科进行整理,总共记录了５３种和亚种,并建立了畸胸螨属Ｔｅｒａｓｔｅｒｎａｇｅｎ．ｎｏｖ．,新属与中国血革螨亚科中唯一的血革螨属Ｈａｅｍｏｇａｍａｓｕｓ相并列。     

湖北西部山地革螨及恙螨名录

自1989年以来,先后从湖北西部山地6个不同海拔、12个不同类型生境捕获的啮齿、食虫等小型哺乳动物体外采集到一大批革螨、恙螨和吸虱标本,经初步整理,鉴定有革螨l1科32属73种、恙螨有3亚科11属41种和亚种、吸虱3种,其中有中国新纪录1种,籁氏巨刺螨Macronyssus leucippe（Domrow）和湖北新纪录41种。     

山西省蝙蝠体上的革螨及巨刺螨属二新种的记述(蜱螨亚纲:蝠螨科、巨刺螨科)

在山西省的蝙蝠体上共采得5属7种革螨:赛蝠螨Spinturnix psi(Kolenati,1856)与宽埃螨Eyndhovenis euryalis(Canestrini,1884)隶属于蝠螨科Spinturnicidae Oudemans,1902;另5种隶属巨刺螨科Macronyssidae Oudemans,1936:长刺肪刺螨Steatonyssus longispinosus Wang,1963、中华肪刺螨S.sinensis Teng,1980、盾板浆刺螨Ichoronyssus scutatus(Kolenati,1856)、四棘巨刺螨新种Macronyssus quadrispinosus sp.nov.与太原巨刺螨新种M.taiyuanensis sp.nov.。文中列出了各螨的宿主及采集纪录,对2个新种巨刺螨加以绘图描述,并讨论了它们的鉴别特征。     

中气门螨四新种记述(蜱螨亚纲,表刻螨科,胭螨科,寄螨科)

记述表刻螨科表刻螨属2新种：贺氏表刻螨Epicrius hejianguoi sp.nov．和黑龙江表刻螨Epicarius hei-longjiangensis sp．nov．;胭螨科囊螨属一新种：拟巨囊螨Asca submajor sp.nov．;寄螨科新革螨属一新种：囊形新革螨Neogamasus ascidiformis sp．nov.。模式标本存于全国鼠疫布氏菌病防治基地,吉林省白城市。     

青藏高原北部革螨初步调查

在青藏高原北部采得血革螨科17种、皮刺螨科11种、寄螨科13种;维螨科2种、囊螨科1种、双革螨科2种、巨螯螨科2种、厚厉螨科3种、犹伊螨科1种和厉螨科4种。并对这些螨在自然界的数量等级和宿主关系作了初步调查。     

二爪螨属和中Xue螨属各一新种（蜱螨亚纲，前爪螨科，Xue螨科）

记述尾足螨股前爪螨科二爪螨属1新种,具齿二爪螨Dinychus dentatus sp.nov．和革螨股Xue螨科中Xue螨属1新种,敦化中Xue螨Mesozercon dunhuaensis sp．nov．,中Xue螨属在中国为首次记录。     

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.