齿股蝇属二新种：（双翅目：蝇科）

本文记述了蝇科齿股蝇属Ｈｙｄｒｏｔａｅａ虎股齿股蝇Ｈｙｄｒｏｔａｅａ ｔｉｇｒｉｆｅｍｏｒａｔａ ｓｐ．ｎｏｖ．。豹股齿股蝇Ｈｙｄｒｏｔａｅａ ｐａｒｄｉｆｅｍｏｒａｔａ ｓｐ．ｎｏｖ．二新种,均隶于小齿股蝇种团Ｈｙｄｒｏｔａｅａ ｐａｒｖａ－ｇｒｏｐ,分别描述并绘图。新种模式标本保存于沈阳师范学昆虫研究所。     

齿股蝇属一新种和一新亚种记述：（双翅目：蝇科）

作者在整理我国内蒙古和东北地区采集的蝇科标本,发现齿股蝇属Ｈｙｄｒｏｔａｅａ Ｒ．－Ｄ．,１９３０中一新种和一新亚种。昭盟齿股蝇Ｈｙｄｒｏｔａｅａ ｚｈａｏｍｅｎｇａ Ｘｕｅ,ｓｐ．ｎｏｖ．和长白齿股蝇Ｈｙｄｒｏｔａｅａ ｓｃａｍｂｕｓ ｃｈａｎｇｂａｉｅｎｓｉｓ ｓｓｐ．ｎｏｖ．模式标本存于沈阳师范学院昆虫研究所。     

齿股绳属二新种（双翅目：蝇科）

本文记述了蝇科齿股蝇属Ｈｙｄｒｏｔａｅａ虎股齿股蝇Ｈｙｄｒｏｔａｅａｔｉｇｒｉｆｅｍｏｒａｔａｓｐ．ｎｏｖ,豹股齿股蝇Ｈｙｄｒｏｔａｅａｐａｒｄｉｒｅｍｏｒａｔａｓｐ．ｎｏｖ．二新种,均隶于小齿股蝇种团Ｈｙｄｒｏｔａｅａｐａｒｖａ－ｇｒｏｐ,分别描述并绘图。新种模式标本保存于沈阳师范学院昆虫研究所。     

齿股蝇属一新种和一新纪录：（双翅目：蝇科）

本文记述产自甘肃省舟曲县齿股蝇属的一新种和采自新疆玛纳斯县齿股蝇属的一新纪录种。新种订名为多刺齿股蝇Hydrotaea spinosus,sp.nov.与毛足齿股蝇 H.Pilipes Stein,1903和拟毛足齿股蝇(H.mimopilipes Ma et Zhao)近缘。正模和副模2分别保存在军事医学科学院微生物流行病研究所和辽宁省卫生防疫站。     

中国齿股蝇属三新种（双翅目：蝇科）

本文报道了中国四川省齿股蝇属Ｈｙｄｒｏｔａｅａ Ｒ。－Ｄ。,１８３０三新种;长鬃齿股蝇Ｈ．ｌｏｇｉｓｔｅｔａ,ｓｐ．ｎｏｖ．;钝齿股蝇Ｈ．ｏｂｔｕｓｉｓｔｅｔａ,ｓｐ．ｎｏｖ．ｌ类邻齿股蝇Ｈ．ａｆｆｉｎｏｉｄｅｓ,ｓｐ．ｎｏｖ．模式标本存在北京军事医学科学院医学昆虫标本馆。     

中国四川(束束)蝇属一新种团及四新种(双翅目:蝇科)

记述分布于中国四川的棘蝇属Phaonia R.-D.,1830 1新种团：曲股棘蝇种团Phaonia blaesomera group nov.及4新种：曲股棘蝇Phaonia blaesomera sp.nov.:类半月棘蝇Phaonia semilunaroida sp.nov.:黑肩棘蝇Phaonia nigeritegula sp.nov.;黄胫棘蝇Phaonia helvitibia sp.nov.模式标本存北京军事医学科学院微生物流行病研究所医学昆虫标本馆。     

中国棘蝇属二新种（双翅目：蝇科）

本文报道了采自中国贵州省梵净山的棘蝇属Ｐｈａｏｎｉａ Ｒｏｂｉｎｅａｕ－Ｄｅｓｖｏｉｄｙ,１８３０二新种：拱腹棘蝇Ｐ．ａｒｃｕａｔｉｃａｕｄａ Ｃｈｅｎ ｅｔ Ｘｕｅ,ｓｐ．ｎｏｖ．,板齿棘蝇Ｐ．ｌａｍｉｎｉｄｅｎｔａ Ｘｕｅ ｅｔ Ｃｕｉ,ｓｐ．ｎｏｖ．。模式标本保存于沈阳师范学院生物系。     

中国秽蝇属二新种（双翅目：蝇科）

本文记述分别采自山西和陕西的秽蝇属２新种：斑股秽蝇Ｃｏｅｎｏｓｉａ ｐｕｎｃｔｉｆｅｍｏｒａｔａ ｓｐ．ｎｏｖ．和太白山秽蝇Ｃｏｅｎｏｓｉａ ｔａｉｂａｉｓｈａｎｎａ ｓｐ．ｎｏｖ．。模式标本分别保存于沈阳师范学院生物系和西北农业大学昆虫博物馆。     

齿股蝇属二新种记述——双翅目:蝇科

本文报道采自甘肃的齿股蝇属(Hydrotaea R.-D.,1830)二新种,模式标本保存于甘肃省卫生防疫站。 多鬃齿股蝇Hydrotaea multchaeta sp.nov.(图1—3) 雄 体长7.5—8.0mm。眼裸;额狭,最狭处宽度约为前单眼横径的1.5倍,间额在额最狭处消失或汉呈线状;额鬃列达于单眼三角高度,向后去渐变小,最后面的1—2对鬃眶其前的一对稍远且稍靠外;侧颜银灰色,其宽约为触角第三节宽的1/2—2/3;眉片黄棕色;触角黑,具棕灰色粉被,第三节长为宽的1.7倍,芒具毳毛;颊暗灰,其高约为触角第三     

中国妙蝇属五新种(双翅目:蝇科)

报道分布于中国蝇科妙蝇属（Myospila Rondani,1856）的5新种：百色妙蝇（M.boseica sp．nov．）;棕色妙蝇（M.brunnea sp.nov.）;黑股妙蝇（M.nigrifemura sp．nov．）;拟双色妙蝇（M.binoides sp．nov．）;天目妙蝇（M.tiamushanica sp．nov．）。模式标本存北京军事医学科学院微生物流行病研究所医学昆虫标本馆。     

Recent advances in the study of Kaposi's sarcoma-associated herpesvirus replication and pathogenesis

It has now been over twenty years since a novel herpesviral genome was identified in Kaposi's sarcoma biopsies. Since then, the cumulative research effort by molecular biologists, virologists, clinicians, and epidemiologists alike has led to the extensive characterization of this tumor virus, Kaposi's sarcoma-associated herpesvirus(KSHV; also known as human herpesvirus 8(HHV-8)), and its associated diseases. Here we review the current knowledge of KSHV biology and pathogenesis, with a particular emphasis on new and exciting advances in the field of epigenetics. We also discuss the development and practicality of various cell culture and animal model systems to study KSHV replication and pathogenesis.     

The structure, reproduction and taxonomy of Vidalia and Osmundaria (Rhodophyta, Rhodomelaceae)

Comprises species occurring mostly in subtidal habitats in tropical, subtropical and warm-temperate areas of the world. An analysis of the type species, V. spiralis (Sonder) Lamouroux ex J. Agardh, a species from Australia, establishes basic characters for distinguishing species in the genus. These characters are (1) branching patterns of thalli, (2) flat blades that may be spiralled on their axis, (3) width of the blade, (4) primary or secondary derivation of sterile and fertile branchlets and (5) position of sterile and fertile branchlets on the thalli. Application of the latter two characters provides an important basic method for separation of species into three major groups. Osmundaria , a genus known only in southern Australia, was studied in relation to Vidalia , and its separation from the Vidalia assemblage is not accepted. Species of Vidalia therefore are transferred to the older genus name, Osmundaria. Two new species, Osmundaria papenfussii and Osmundaria oliveae are described from Natal. Confusion in the usage of the epithet, Vidalia fimbriala Brown ex Turner has been clarified, and Vidalia gregaria Falkenberg, described as an epiphyte on Osmundaria pro/ifera Lamouroux, is revealed to be young branches of the host, Osmundaria prolifera.     

New or rare chromosome counts in Artemisia L. (Asteraceae, Anthemideae) and related genera from Kazakhstan

Fifteen chromosome counts of six Artemisia taxa and one species of each of the genera Brachanthemum, Hippolytia, Kaschgaria, Lepidolopsis and Turaniphytum are reported from Kazakhstan. Three of them are new reports, two are not consistent with previous counts and the remainder are confirmations of very scarce (one to four) earlier records. All the populations studied have the same basic chromosome number, x = 9, with ploidy levels ranging from 2x to 6x. Some correlations between ploidy level, morphological characters and distribution are noted.     

肝癌中HBV和HCV基因和抗原的分布及意义

采用原位分子杂交方法检测HCV RNA及HBV X基因;采用免疫组织化学方法研究HCV核心抗原,非结构区C33c抗原及HBxAg在肝细胞肝癌中的定位及分布.结果表明(1)HCV RNA、HBV X基因在肝细胞肝癌组织检出率分别为40%(55/136)和82%(112/136).HCV RNA定位于癌细胞的胞浆内,阳性细胞呈散在、灶状及弥漫分布三种形式;HBV X基因在肝癌细胞中的分布呈胞浆型、核型及核浆型,阳性细胞也呈上述三种分布形式;(2)HCV C33c抗原、核心抗原在肝细胞肝癌中的阳性率为81%(133/164)及86%(141/164).C33c抗原定位于癌细胞及肝细胞的胞浆内;核心抗原既定位于癌细胞核中,又可定位于胞浆中.C33c抗原阳性细胞以灶状分布为主;而核心抗原阳性细     

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.