射线投影方法—一种新的大地层析成像数据反演技术     

Singh  RP 胡国亮 《物探化探译丛》1993,(4):15-24

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津巴布韦沙姆瓦金矿：晚太石代钙碱性喷气,水山碎屑...     

福斯.  RP 张辉旭 《国外矿床地质》1990,(2):87-107

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Porosity and permeability in sediment mixtures     

Chapuis RP  Aubertin M 《Ground water》2008,46(6):794-5; discussion 795-6

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一个极高光度IRAS星系样本在20cm观测的初步结果     

李永生 Norr.  RP 《云南天文台台刊》2000,(3):15-21

使用澳大利亚致密阵（ＡＴＣＡ）在１．４ＧＨｚ上观测一个极 度的ＩＲＡＳ星系样本。在这个样本所包括的３７个ＩＲＡＳ星系中,探测到１９个源的射 电发射 ,获得了它们的射电参数,如峰值位置,射电流量等。该样本的射电功率范围在２２．９〈ｌｏｇＰ１．４Ｇ（Ｗ／Ｈｚ）〈２３．８,本文给出了观测的初步结果。  相似文献   

差分GPS导航的进展和测试结果     

Dena.  RP 林锡如 《物探化探译丛》1993,(1):38-41

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太古宙花岗岩类起源和大陆演化     

拉普.  RP  张新安 《国土资源信息化》1992,(1):24-27

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佛罗里达大陆架更新世矿物鲕粒的阴极发光性     

Major  RP 黄思静 《国外地质(北京)》1991,(2):38-46

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Mycobacteria, but not mercury, induces metallothionein (MT) protein in striped bass, Morone saxitilis, phagocytes, while both stimuli induce MT in channel catfish, Ictalurus punctatus, phagocytes     

Regala RP  Rice CD 《Marine environmental research》2004,58(2-5):719-723

Recent advances in molecular immunology indicate that the expression of inducible pro-inflammatory proteins is increased in vertebrates in response to both infectious disease agents and various xenobiotics. For example, iNOS, COX-2, and CYP1A are induced by both inflammation and AhR ligands. Moreover, the expression of these proteins in response to stimuli varies among individuals within populations. Little is known of the differences among fish in the inducibility of proinflammatory proteins in response to both infectious agents and xenobiotics. Through random screening of a striped bass, Morone saxitilis, peritoneal macrophage cDNA library, a full length metallothionein (MT) gene was cloned and sequenced. MT is a low-molecular weight (6-8 kDa), cysteine-rich metal binding protein. Metals are required by pathogenic bacteria for growth, and by the host defense system by serving as a catalyst for the generation of reactive oxygen intermediates (ROIs) by phagocytes. A recombinant striped bass MT (rMT) was expressed and purified, then used to generate a specific mAb (MT-16). MT protein expression was followed in freshly isolated striped bass and channel catfish, Ictalurus punctatus, phagocytes after in vitro exposure to the naturally occurring intracellular pathogen Mycobacteria fortuitum or to 0.1 and 1 microM mercury (Hg), as HgCl(2). MT expression was increased by 24 h in both channel catfish and striped bass phagocytes as a result of exposure to M. fortuitum cells. On the other hand, MT was induced by Hg in channel catfish cells, but not those of striped bass. These results indicate that metal homeostasis in phagocytes is different between catfish and striped bass. In addition, these data suggest that care should be taken to distinguish between inflammation-induced vs. metal-induced MT when using MT expression as a biomarker of metal exposure.  相似文献   

Dynamics of population growth: Bundelkhand region--a case study     

Singh RN  Chaturvedi RP 《Population geography : a journal of the Association of Population Geographers of India》1984,6(1-2):53-65

This paper analyzes the growth of population and its various characteristics in the Bundelkhand region of India. Bundelkhand region--a distinct histocultural and geographic unit--is a transitional zone between the 2 major physiographic divisions of India: the Gangetic plain and Peninsular India. The region is a less developed part of India where people are living in low social status with poor economic conditions; agriculture is the mainstay of the people, but the region suffers from the inadequacy and inefficiencies of irrigation facilities. The history of population growth of the region during the last 80 years has followed a multivariate course; besides the interplay of birth and death, in-migration contributes considerably to the population growth. The 1st phase (1901-1921) is that of progressive decline causing a very slow population growth--population decrease was mainly due to the influenza epidemic of 1918-19. The 2nd phase (1921-1951) was a period of moderate population growth due to the national political movements and disturbances together with some natural disasters. The 3rd phase (1951-1981) is marked by a rapid population growth mainly due to the decline in the death rate. Over the last 80 years, the total population of the Bundelkhand region increased from 3.45 million to 8.03 million--a net increase of 132.58%. However, this change is not high when compared to the national average of 176.11%. The total population of the region in 1981 (8,037,206 persons) is expected to reach 8,874,000 persons in 1991, and 9,797,000 persons in 2001. This will undoubtedly put enormous pressure on the resources of the region slowing down the pace of economic progress.  相似文献   

青海湖沉积物中的长链不饱和脂肪酮（长链烯酮）   总被引：4，自引：0，他引：4  

李景贵 Phil.  RP 《沉积学报》1995,13(1):1-6

在青海湖沉积物中检出了含有２～４个双键的长链（Ｃ₃₇－Ｃ₄₀）甲基和乙基脂肪酮。这是世界沉积于碱性环境和各种不同盐度条件下（耳海，淡水；青海湖，半咸水；尕海，咸水）的近代湖泊沉积物中的长链不饱和脂肪酮的首次详细报导。许多地球化学家广泛用这些化合物经过计算公式来估算海洋沉积物的古温度。如果对这些化合物估算海洋沉积物古温度的计算公式进行适当校正，那么也可用这些化合物来推知湖泊沉积物的古温度。  相似文献