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Journal of Environmental Sciences 2012年第5期24卷 790-799页

作者： Huub J. M. op den camp Department of Microbiology IWWR Radboud University Nijmegen

The spatial distribution and diversity of archaeal and bacterial ammonia oxidizers （AOA and AOB） were evaluated targeting amoA genes in the gradient of a littoral buffer zone which has been identified as a hot spot for N cycling. Here we found high spatial heterogeneity in the nitrification rate and abundance of ammonia oxidizers in the five sampling sites. The bacterial amoA gene was numerically dominant in most of the surface soil but decreased dramatically in deep layers. Higher nitrification potentials were detected in two sites near the land/water interface at 4.4–6.1 μg NO2-N/（g dry weight soil·hr）, while only 1.0–1.7 μg NO2-N/（g dry weight soil·hr） was measured at other sites. The potential nitrification rates were proportional to the amoA gene abundance for AOB, but with no significant correlation with AOA. The NH4＋ concentration was the most determinative parameter for the abundance of AOB and potential nitrification rates in this study. Higher richness in the surface layer was found in the analysis of biodiversity. Phylogenetic analysis revealed that most of the bacterial amoA sequences in surface soil were affiliated with the genus of Nitrosopira while the archaeal sequences were almost equally affiliated with candidatus ‘Nitrososphaera gargensis’ and candidatus ‘Nitrosocaldus yellowstonii’. The spatial distribution of AOA and AOB indicated that bacteria may play a more important role in nitrification in the littoral buffer zone of a N-rich lake.

关键词： littoral zone ammonia oxidation archaea bacteria heterogeneity abundance

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EffEcTS Of HUMAN AcTIVITIES ON STrUcTUrE AND cOMPOSITION Of WOODY SPEcIES Of THE NOKrEK BIOSPHErE rESErVE Of MEGHALAYA, NOrTHEAST INDIA

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植物生态学报 2008年第1期32卷 73-79页

作者： Tripathi op Pandey HN Tripathi rS Department of forestry North Eastern Regional Institute of Science ＆ Technology Deemed University Nirjuli-791 109 Arunachal Pradesh India Department of Botany North-Eastern Hill Univershy Shillong-793 022 India

Aims Our study was conducted in the Nokrek Biosphere reserve(NBr) in the Garo hills districts of Meghalaya,Northeast *** aim was to assess the effects of human activities on plant diversity,population structure and *** We selected a representative 1.2 hm2 stand in both the core and buffer zones of *** and composition were determined by randomly sampling square quadrats,population structure was assessed by determining age structure,and regeneration was assessed by measuring densities of seedling,sapling and adult *** findings More woody species were recorded from the core zone than the buffer zone(87 vs.81 species),and there were a large number of tropical,temperate,and Sino-Himalayan,Burma-Malaysian and Malayan elements,primitive families and primitive *** trees were distributed in three distinct strata,canopy,subcanopy and *** and sapling layers had the highest species richness(81%-88%).Lauraceae and Euphorbiaceae were the dominant families in terms of the number of species,and a large number of families were represented by single *** woody species(57%-79%) were contagiously distributed and had low frequency(ffer zone,its basal area was low compared to the stand in the core *** similarity and high β-diversity indicate marked differences in species composition of the *** diversity index was high in both the stands,while Simpson dominance index was *** diameter-class distribution for dominant species revealed that the most had a large number of young individuals in their *** of tree seedlings,followed by a steep decline in population density of saplings and adult trees,indicated that the seedling to sapling stage was the most critical in the life cycle of the tree *** species(42%-48%) had no regeneration,25%-35% had good/fair regeneration,and the rest had poor regeneration or reoccurred as imm

关键词：印度生物圈自然保护区散布图种群结构再生物种丰富度 NOKrEK国家公园

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Population genetic structure of culex quinquefasciatus in India by ISSr marker

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Asian Pacific Journal of Tropical Medicine 2011年第5期4卷 357-362页

作者： Mendki MJ Sharma AK Vijay Veer Agrawal op Shri Prakash Parashar BD Entomology Division Defence R & D EstablishmentJhansi RoadGwaliorMadhya PradeshIndia School of Studies in Zoology Jiwaji UniversityGwaliorMadhya PradeshIndia Entomology Division Defence R&D EstablishmentJhansi RoadGwaliorMadhya PradeshIndia

Objective:To characterize the genetic structure of various populations of culex quinquefasciatus (***) from India representing different geoclimatic ***:Inter simple sequence repeat(ISSr) markers were used.A set of 20 primers were screened with the laboratory populations of mosquito *** the IS 40 primer was chosen based on the scorable banding pattern showing 100 percent polymorphism among the various *** statistical analysis was done using PopGENE 1.31 *** consensus tree was generated based on UPGMA modified from NEIGHBOr procedure of PHYLIP Version ***:The cluster analysis shows the main cluster which is divided into two sub cluster representing all the populations separated as per their phylogeographic and geoclimatic ***: The findings will be helpful in understanding the population variation under different ecological conditions and development of effective vector management strategies.

关键词： Genetic structure culex quinquefasciatus ISSr marker India

first Detailed Photometric Investigation on the Nature of contact Binary System AA cet

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research in Astronomy and Astrophysics 2023年第7期23卷 154-163页

作者： M.f.Yıldırım f.Soydugan Çanakkale Onsekiz Mart University Astrophysics Research Center and Ulupınar Observatory17020ÇanakkaleTurkey Çanakkale Onsekiz Mart University Faculty of SciencesDepartment of Physics17020ÇanakkaleTurkey

The TESS light curve(Lc)of the marginal contact binary A A cet was analyzed simultaneously with the radial velocity and the orbital period(op)change of the system was *** physical parameters of the system were obtained by analyzing the Lc of A A cet with the Wilson-Devinney method,and the absolute parameters of the components were calculated using the results *** the components of AA cet,the masses and radii were calculated as M_(1)=1.39±0.04 M_⊙,M_(2)=0.48±0.02 M_⊙,and r_(1)=1.64±0.03 r_⊙,r_(2)=1.01±0.04 r_⊙,*** cet is a marginal contact binary with a temperature difference of 1305 K between its components.A total of 14 eclipse times were obtained from the TESS data and used in the op analysis together with those collected from the *** has been observed that the change in the op of AA cet is in the form of a decreasing *** mass transfer between the components has been interpreted as the reason for this *** op decrease amount of A A cet was obtained as dP/dt=0.0062±0.0006 s yr^(-1).and the reason for this decrease was attributed to a 3.3(9)×10^(-8)M_⊙.mass transfer per year from the more massive component to the less massive *** age of A A cet has been estimated as 7 Gyr,as the age of contact systems helps us to understand their evolution.

关键词： (stars:)binaries:eclipsing stars:fundamental parameters stars:individual(AA cet)

如何制定管理决策（一）：第一部分：传统技术

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经济译文 1991年第3期 6-11页

作者：长邦.,op 向望

有机氯杀虫剂的研究:三氯杀虫酯(“7504”)的合成、药效与生物降解试验

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昆虫学报 1979年第4期22卷 390-395页

作者： LABOrATOrY Of INSEcTIcIDE AND TOXIcOLOGY, INSTITUTE op ZOOLOGY, AcADEMIA SINIcA 中国科学院动物研究所药剂毒理室

1975年我们合成了DDT的类似物——三氯杀虫酯（代号7504）。室内药效试验结果,对家蝇（Musca domestica vicina macq）的LD50为4.89—5.89微克/头（DDT为50微克/头）;用残膜法处理家蝇KT30为23分44秒（DDT为60分）。处理后的残膜室内放... 详细信息

1975年我们合成了DDT的类似物——三氯杀虫酯（代号7504）。室内药效试验结果,对家蝇（Musca domestica vicina macq）的LD50为4.89—5.89微克/头（DDT为50微克/头）;用残膜法处理家蝇KT30为23分44秒（DDT为60分）。处理后的残膜室内放置60天,处理家蝇KT30为48分26秒（DDT为95分5秒）。1977年7—8月份进行了扩大药效试验。在住户和畜舍内以2克/米2药量作滞留喷洒,对蚊、蝇成虫的药效可维持一个月左右。 “7504”在生物体内容易降解。家蝇试验Sr值为15.8（DDT为2.2）。以DDT作对比,用含相同药量100ppm的鸡饲料,任其自由取食15天后,分析DDT在鸡体内的累积量为495.5ppm;而“7504”在鸡体内则没有发现。以1000ppm的“7504”喂15天后,在胸肌及肝内仅有微量存在,脂肪内未发现,而粪便内则达167ppm。如用胶囊每天强迫饲喂2克,7天后肝脏内含0.5ppm。脂肪内未发现。粪便内达625ppm。“7504”与鸡肝匀浆,在37℃条件下培育10分钟,可降解85％以上,培育20分钟有97％被降解。

关键词：药效肝匀浆滞留喷洒家蝇动物 DDT 三氯杀虫酯 ppm 三氯化铝电子捕获鉴定器

Accelerations in the Local Magnetic field on the Adriatic Tectonic Microplate

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open Journal of Earthquake research 2021年第3期10卷 95-104页

作者： rudi Čop Jean L. rasson Andrej Bilc Institute Terra Viva Se&#269 ovlje Slovenia royal Meteorological Institute Dourbes Viroinval Belgium 2B Geoinformatika Ljubljana Slovenia

The high level of noise is a special feature of the geomagnetic field on the territory of Slovenia. The tension of the Adriatic tectonic microplate, on which Slovenia entirely lies, was recognized as one of its sources. The interior of the Earth is also the source of geomagnetic jerks. They are impulses in the secular variation calculated on the basis of monthly or annual mean values of variation of the geomagnetic field. The paper presents an analysis of accelerations in a local magnetic field calculated on the bases of daily mean values of the magnetic field measured at PIA geomagnetic Observatory (Piran, Slovenia) in 2020. These accelerations indicate geomagnetic impulses at the regional level over days or weeks. Then these results are compared with the registered seismic activity in the West Balkans.

关键词： Geomagnetic Observatory Geomagnetic Jerks Accelerations in the Local Magnetic fields Seismic Activity

国产植物中蜕皮激素的分离鉴定和对家蚕生理活性的试验

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昆虫学报 1979年第4期22卷 396-403页

作者： HOrMONE SEcTION, LABOrATOrY op PHYTOcHBMISTrY,KIANGSU INSTITUTE op BOTANY,HOrMONE SEcTION, LABOrATOrY Of PHYSIOLOGY ANDPATHOLOGY, KIANGSU INSTITUTE Of SErIcULTUrE 江苏省植物研究所植化室激素组江苏省蚕业研究所生理室激素组

(1)通过107种植物对家蚕的脱皮活性试验,发现唇形科植物野芝麻(Lamium barbatum ***.)是一种新的含蜕皮激素的植物。蜕皮激素收得率是0.029％,熔点239—242℃,TLc rf 0.5—0.6(黄绿色),并经光谱分析证明为β-蜕皮激素。 (2)从资源丰富... 详细信息

(1)通过107种植物对家蚕的脱皮活性试验,发现唇形科植物野芝麻(Lamium barbatum ***.)是一种新的含蜕皮激素的植物。蜕皮激素收得率是0.029％,熔点239—242℃,TLc rf 0.5—0.6(黄绿色),并经光谱分析证明为β-蜕皮激素。 (2)从资源丰富的植物土牛膝(Achyranthes bidentata Bl.)中提取了β-蜕皮激素,并进行了蚕用试验与推广应用研究,证明活性及效果稳定,并提出了简易的制作生产方法。 (3)在试验中发现从川牛膝(cyathula capitata Moquin-Tandon)根提取的cyasterone给蚕添食大剂量(5微克/头或以上)时蜕变为幼虫-蛹混合型,而添食小剂量(1.5微克/头)蜕变为正常的蛹。

关键词：蜕皮激素土牛膝野芝麻收得率甾体激素植物家蚕桑蚕分离鉴定生理活性

first Detailed Photometric Investigation on the Nature of contact Binary System AA cet

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research in Astronomy and Astrophysics 2023年第7期 156-165页

作者： M.f.Y?ld?r?m f.Soydugan ?anakkale Onsekiz Mart University Astrophysics Research Center and Ulup?nar Observatory ?anakkale Onsekiz Mart University Faculty of Sciences Department of Physics

The TESS light curve(Lc) of the marginal contact binary A A cet was analyzed simultaneously with the radial velocity and the orbital period(op) change of the system was *** physical parameters of the system were obtained by analyzing the Lc of A A cet with the Wilson-Devinney method,and the absolute parameters of the components were calculated using the results *** the components of AA cet,the masses and radii were calculated as M1=1.39±0.04 M⊙,M2=0.48±0.02 M⊙,and r1=1.64±0.03 r⊙,r2=1.01±0.04 r⊙,*** cet is a marginal contact binary with a temperature difference of 1305 K between its components.A total of 14 eclipse times were obtained from the TESS data and used in the op analysis together with those collected from the *** has been observed that the change in the op of AA cet is in the form of a decreasing *** mass transfer between the components has been interpreted as the reason for this *** op decrease amount of A A cet was obtained as dP/dt=0.0062±0.0006 s *** the reason for this decrease was attributed to a 3.3(9)×10-8M⊙.mass transfer per year from the more massive component to the less massive *** age of A A cet has been estimated as 7 Gyr,as the age of contact systems helps us to understand their evolution.

关键词：

应用rifamethoprim治疗急性和慢性呼吸系统疾病

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国外医药（抗生素分册） 1993年第4期14卷 289-290页

作者： opловBA 于守汎

rifamethoprim胶囊每粒含利福平0.15g和甲氧苄啶0.04g。此药的特点是具有广谱抗菌作用,对葡萄球菌包括耐甲氧西林菌株,链球菌、肠球菌、分枝杆菌属、梭菌属均有强抗菌活性;大多数肠杆菌科、嗜血菌属、假单胞菌50%以上菌种、革兰氏阳性... 详细信息

rifamethoprim胶囊每粒含利福平0.15g和甲氧苄啶0.04g。此药的特点是具有广谱抗菌作用,对葡萄球菌包括耐甲氧西林菌株,链球菌、肠球菌、分枝杆菌属、梭菌属均有强抗菌活性;大多数肠杆菌科、嗜血菌属、假单胞菌50%以上菌种、革兰氏阳性和革兰氏阴性非产芽胞厌氧菌、军团菌和枝原体属也对其敏感。rifamethoprim中的两种抗菌药物具有不同的抗菌机理:利福平抑制依赖DNA的rNA聚合酶的合成,而甲氧苄啶则对二氢叶酸还原酶具有抑制作用;因而两药伍用具有协同作用。在复合制剂中,

关键词：呼吸系统药物药理学临床

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