Satellite Peaks
Mostrando 1-11 de 11 artigos, teses e dissertações.
-
1. Caracterização genética populacional do camarão sete-barbas Xiphopenaeus kroyeri (Heller, 1862) no litoral sudeste-sul do Brasil
Xiphopenaeus kroyeri, also known as the sea bob, is one of the most important fishery resources along the southeastern-southern coast of Brazil. However, its capture is beyond sustainable limits. Population structure analysis provides important information for the delineation of management and conservation programs. The genetic structure of the X. kroyeri po
Publicado em: 2009
-
2. Space-temporal variability of chlorophyll-a concentration and sea surface temperature estimated from satellite in the Brazilian Southeast Continental Margin / Variabilidade espaço-temporal da concentração de clorofila-a e temperatura da superfície do mar estimadas por satélite na Margem Continental Sudeste Brasileira
The objective of this work was to analyze the space-temporal variability of the chlorophyll-a concentration (Chl) and the sea surface temperature (SST) in the Brazilian Southeast Continental Margin (BSCM), between jan/1998 and dec/2006. Images from SeaWiFS e AVHRR were used for the extraction of the Chl and SST data respectively. Besides, Southeast Oscillati
Publicado em: 2008
-
3. DiagnÃstico do uso e ocupaÃÃo do solo na bacia hidrogrÃfica do Rio SÃo JosÃ, Cascavel â PR.
The use of soil is understood as a space that is being occupied by man, developing a set of activities of production and reproduction of a society, involving both urban and agricultural areas. Due to the economic development of the last few years, this subject has been studied more and more with a common concern: the quality of water. The objective of this p
Publicado em: 2008
-
4. "Factors affecting the energy resolution in alpha particle spectrometry with silicon diodes" / "Fatores que influenciam a resolução em energia na espectrometria de partículas alfa com diodos de Si"
Neste trabalho são apresentados os estudos das condições de resposta de um diodo de Si, com estrutura de múltiplos anéis de guarda, na detecção e espectrometria de partículas alfa. Este diodo foi fabricado por meio do processo de implantação iônica (Al/p+/n/n+/Al) em um substrato de Si do tipo n com resistividade de 3 kohmcm, 300 mícrons de esp
Publicado em: 2005
-
5. On the origin of the satellite peaks in alpha particle spectra
In this work we describe the results obtained with S3590-06 and ion-implanted diodes for alpha particle spectrometry. Satellite peaks were also investigated in order to identify not only the origin of these phenomena, but also the importance of the guard ring region on their relative intensities. The preliminary results indicate that the true cause of the sp
Brazilian Journal of Physics. Publicado em: 2004-09
-
6. Estudo de ordenamento multipolar eletrico de holmio por difração de raios-X
Multipolar ordering in metallic holmium 4f shell was extensively studied for the first time, by resonant and non resonant X-ray scattering at the helical antiferromagnetic and conical ferromagnetic phases. The strong spin-orbit coupling drives the multipolar order as it was experimentally confirmed through the temperature dependence of the ordering wave-vect
Publicado em: 2003
-
7. Novel Properties of Satellite DNA from Muskmelon
The purified dense satellite of muskmelon (Cucumis melo L.) represents 30% of the total DNA and forms a sharp, unimodal peak in both neutral and alkaline CsCl gradients. Spectrophotometric melting and DNA reassociation analyses revealed that one-third of the satellite is high melting and has a complexity of about 2.5 × 105 daltons, while the remaining two-t
-
8. RNA-dependent RNA polymerase from plants infected with turnip crinkle virus can transcribe (+)- and (-)-strands of virus-associated RNAs.
RNA-dependent RNA polymerase (RdRp) was solubilized from membranes of turnip infected with turnip crinkle virus (TCV), a single-stranded, monopartite RNA virus. The RdRp activity could be separated into three peaks by Sephacryl S500HR chromatography. RdRp from peak I, which contained substantial amounts of endogenous TCV genomic RNA, and peak II were templat
-
9. Composite Circular Forms of R Factor Deoxyribonucleic Acid Molecules
Two R factors, one (R15) conferring resistance to streptomycin and sulfonamide (SMrSUr) and the other (222/R3) to streptomycin, sulfonamide, and chloramphenicol (SMrSUrCMr), were transferred to a Proteus mirabilis strain, and deoxyribonucleic acid (DNA) extracted from these strains was subjected to density-gradient centrifugation. R15-DNA formed a single sat
-
10. Transcriptional Activation of a Constitutive Heterochromatic Domain of the Human Genome in Response to Heat ShockD⃞
Heat shock triggers the assembly of nuclear stress bodies that contain heat shock factor 1 and a subset of RNA processing factors. These structures are formed on the pericentromeric heterochromatic regions of specific human chromosomes, among which chromosome 9. In this article we show that these heterochromatic domains are characterized by an epigenetic sta
The American Society for Cell Biology.
-
11. Circular R-Factor Molecules Controlling Penicillinase Synthesis, Replicating in Escherichia coli Under Either Relaxed or Stringent Control
Two infectious drug-resistance (R) factors, R28K and R6K, each conferring resistance to a number of penicillins by the synthesis of a penicillinase, were transferred to Proteus mirabilis PM1 and Escherichia coli RC85 host strains. Deoxyribonucleic acid (DNA) extracted from these strains was separated by density-gradient centrifugation and subjected to electr