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本刊启事

<正>1.本刊以赠阅或订阅形式呈送国土资源部,青海省委、省人大、省政府、省政协、省纪委、青海省人民检察院、青海省高级人民法院及各办公厅(室)、各厅(司)局领导,各州(市),各县(市、区、行委)、乡(镇)五大班子领导,全国各省级国土资源单位,全省各国土资源单位,并面向国内外社会大众广泛订阅。2.本刊所摘部分图文的作者姓名及地址不详,请相关作者与本刊编辑部联系,以便奉寄稿酬。凡经本刊使用的稿件、图片,     

本刊启事

正1.本刊以赠阅或订阅形式呈送国土资源部,青海省委、省人大、省政府、省政协、省纪委、青海省人民检察院、青海省高级人民法院及各办公厅(室)、各厅(司)局领导,各州(市),各县(市、区、行委)、乡(镇)五大班子领导,全国各省级国土资源单位,全省各国土资源单位,并面向国内外社会大众广泛订     

本刊启事

<正>1.本刊以赠阅或订阅形式呈送国土资源部,青海省委、省人大、省政府、省政协、省纪委、青海省人民检察院、青海省高级人民法院及各办公厅(室)、各厅(司)局领导,各州(市),各县(市、区、行委)、乡(镇)五大班子领导,全国各省级国土资源单位,全省各国土资源单位,并面向国内外社会大众广泛订阅。2.本刊所摘部分图文的作者姓名及地址不详,请相关作者与     

本刊启事

<正>1.本刊以赠阅或订阅形式呈送国土资源部,青海省委、省人大、省政府、省政协、省纪委、青海省人民检察院、青海省高级人民法院及各办公厅(室)、各厅(司)局领导,各州(市),各县(市、区、行委)、乡(镇)五大班子领导,全国各省级国土资源单位,全省各国土资源单位,并面向国内外社会大众广泛订阅。2.本刊所摘部分图文的作者姓名及地址不详,请相关作者与     

本刊启事

正1.本刊以赠阅或订阅形式呈送国土资源部,青海省委、省人大、省政府、省政协、省纪委、青海省人民检察院、青海省高级人民法院及各办公厅(室)、各厅(司)局领导,各州(市),各县(市、区、行委)、乡(镇)五大班子领导,全国各省级国土资源单位,全省各国土资源单位,并面向国内外社会大众广泛订阅。     

亚纯函数f(z)的微分多项式φψ(z)f(z)P(f)(z)的值分布

设k∈N,f(z)为复平面上的超越亚纯函数,φ(z)、ak-1(z),…,a0(z)为f(z)的小函数,且φ(z)≠0.置P(f)(z)=f(k)(z) ak-1(z),k-1((z) … a1(z)f'(z) a0f(z),且P(f)(z)不恒为常数.当k≤4时,满足Nk)(r,1/f)=S(r,f);k≥5时,满足N4)(r,1/f)=S(r,f),则T(r,f)＜20-N(r,1/φfP-1) S(r,f).     

ͬʱ����x(1)(1)��x(1)(n)ΪGM(1,1) ��ģ��ʼ������Ԥ�ⷽ���о�

????GM(1,1)???????????????????о????????????????x⁽¹⁾(1)??x⁽¹⁾(n)??????????GM(1,1)??????????????????x⁽¹⁾(1)??x⁽¹⁾(n)?GM(1,1)????????????·???????x⁽¹⁾(t)?????????????????1-AGO???е???????????С?????????????????????????????????????????????????????????????????з?????????????????????????????÷?Χ?????????????????????????????????????GM(1,1)????????????????????GM(1,1)????     

湖北省秭归ML3.6地震震源特征

利用三峡数字地震台网的数字记录,反演了2001年10月11日湖北省秭归(东经110.4°,北纬30.9°)ML3.6地震的参数,同时得到了三峡地区的地壳速度结构.反演得到的三峡地区的地壳速度模型和以前在该地区利用人工和天然地震获得的速度模型基本一致.该地震发生在走向为NE,倾向为NW的断层上,地震主要产生以滑动为主的错动,持续时间从开始到结束约为0.16 s.这次地震断层面的长度约780 m,宽度约330 m,滑动量约为41.9 cm.     

Biosorption behavior and mechanism of lead (II) from aqueous solution by aerobic granules (AG) and bacterial alginate (BA)

Lead(Pb) and its compounds are common pollutants in industrial wastewaters.To develop appropriate Pb 2+ treatment technologies,aerobic granules(AG) and bacterial alginates(BA) were studied as alternative biosorbents to remove Pb 2+ from aqueous solutions.The biosorption mechanism of AG and BA were further analyzed to determine which functional groups in AG and BA are active in Pb 2+ biosorption.In this paper,the Pb 2+ biosorption behavior of AG and BA was respectively investigated in batch experiments from the perspectives of the initial pH,contact time,and initial Pb 2+ concentration.The results showed that biosorption of Pb 2+ by AG and BA occurred within 60min at the initial Pb 2+ concentrations(0 150 mg L-1).The actual saturated Pb 2+ biosorption capability of AG was 101.97 mg g-1(dry weight of aerobic granular biomass).When the initial pH was 5,the biosorption capability of AG and BA was highest at the initial Pb 2+ concentrations(0 20mg L-1).During the process of Pb 2+ biosorption,K +,Ca 2+,and Mg 2+ were released.The Ion Chromatography(IC) and Fourier Transform Infrared Spectroscopy(FTIR) further highlighted the main role of ion exchange between Ca 2+ and Pb 2+ and sequestration of Pb 2+ with carboxyl(-COO) of AG and BA.This analogical analysis verifies that BA is responsible for biosorption of Pb 2+ by AG.At the same optimal pH,AG cultivated with different carbon source has different Pb 2+ biosorption capacity.The Pb 2+ biosorption by AG with sodium acetate as the sole carbon source is higher than AG with glucose as carbon source.     

企鹅珍珠贝生殖细胞的发生

对不同发育阶段的企鹅珍珠贝[Ptedapenguin(Rding)]的性腺结构、生殖细胞结构与分布进行组织学观察,描述精/卵子发生过程中各级精/卵细胞的特征。结果表明:根据雌性生殖细胞形态和卵黄的变化特点,卵子发生经历卵原细胞、无卵黄初级卵母细胞、卵黄形成期卵母细胞及成熟卵子阶段;依据雄性生殖细胞大小和细胞核形态变化,精子发生经历精原细胞、初级精母细胞、次级精母细胞、精子细胞和精子阶段,其中精原细胞存在形态上有差异的A型和B型两种类型。此外还观察到企鹅珍珠贝的性别转化现象。     

道国·“中路”·路(道)姓

河南省确山县为“古道国地”。道国虽小,却历虞、夏、商、周数代,并处于“中路”古道之中,具有非常重要的战略地位。研究道国及其有关问题,对于认识中国交通发展史中国经济发展史、以及中国姓氏的发展变化,均有着不可忽视的价值。     

Identification of Cytochrome P450 (CYP) genes in Zhikong scallop (Chlamys farreri)

Cytochrome P450 (CYP) superfamily is one of the membership largest and function most diverse protein superfamily recogniozed among living beings. Members of this superfamily were further assigned to different families and subfamilies based on their amino acid similarities. According to their phylogenetic relationships, the CYP genes which likely diverged from common ancestor gene and may share common functions were grouped into one clan. Widely distributing scallops are a group of the most conspicuous bivalve; however the studies on their CYP is acarce. In this study, we searched the genome and expressed sequence tags of Zhikong scallop (Chlamys farreri) for CYP genes. In total, 88 non-redundant CYP were identified, which were homed in 13 CYPs gene families. Phylogenetic analysis divided these genes into 4 CYP clans. As in deuterostomes, Clan 2 was the largest, which contained 33 genes belonging to CYP1, CYP2, CYP17 and CYP356 families. Clan 3 contgained 19 genes belonging to CYP3, CYP5 and CYP30 families. Clan 4 contained 23 genes, all belonging to CYP4 family. The mitochondrial CYP clan contained 9 genes belonging to CYP10 and CYP24 families. In comparison, protostomes (C. farreri, D. pluex, D. melanogaster) contained more CYP genes than deuterostomes (S. purpuratus and vertebrates) in Clan 2 but less genes in Clan 3 and Clan 4. Our findings will aid to deciphering CYP function and evolution in scallops and bivalves.     

Reproductive morphology ofEucheumagelatinae (Esper) J. Agardh (Solieriaceae,Gigartinales, rhodophyta)

Eucheuma gelatinae (Esper) J. Agardh has vegetative and reproductive features distinguishing it from other species ofEucheuma. The occurrence of reproductive nemathecia containing carpogonial branches, auxiliary cells and post-fertilization stages including gonimoblast and pericarp initiation, fusion cell formation stages and carposporophyte development are described and ilustrated for the first time for this species. Contribution No. 2380 of the Institute of Oceanology, Chinese Academy of Sciences.