Alternating Chain
Mostrando 1-12 de 44 artigos, teses e dissertações.
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1. A new species of Paralithoxus (Siluriformes: Loricariidae: Ancistrini) from the highlands of Serra da Mocidade, Roraima State, Brazilian Amazon
RESUMO Uma nova espécie de Paralithoxus é descrita do rio Ajarani, um pequeno tributário da bacia do rio Branco, Estado de Roraima, Amazônia Brasileira. O gênero Paralithoxus é composto por espécies descritas para as drenagens do Essequibo na Guiana, Approuague e Maroni na Guiana Francesa, rio Suriname no Suriname, e mais recentemente, para os rios Ja
Neotrop. ichthyol.. Publicado em: 02/12/2019
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2. Therapeutic mechanism of treating SMMC-7721 liver cancer cells with magnetic fluid hyperthermia using Fe2O3 nanoparticles
This study aimed to investigate the therapeutic mechanism of treating SMMC-7721 liver cancer cells with magnetic fluid hyperthermia (MFH) using Fe2O3 nanoparticles. Hepatocarcinoma SMMC-7721 cells cultured in vitro were treated with ferrofluid containing Fe2O3 nanoparticles and irradiated with an alternating radio frequency magnetic field. The influence of t
Braz J Med Biol Res. Publicado em: 29/08/2014
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3. Submicroscopic malaria parasite carriage: how reproducible are polymerase chain reaction-based methods?
The polymerase chain reaction (PCR)-based methods for the diagnosis of malaria infection are expected to accurately identify submicroscopic parasite carriers. Although a significant number of PCR protocols have been described, few studies have addressed the performance of PCR amplification in cases of field samples with submicroscopic malaria infection. Here
Mem. Inst. Oswaldo Cruz. Publicado em: 2014-02
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4. Modelo de Heisenberg antiferromagnético com interações não-uniformes / Antiferromagnetic Heisenberg model applied to nonuniform interactions
Nesta dissertação, estudamos cadeias unidimensionais antiferromagnéticas de spins 1/2 modeladas pelo Hamiltoniano de Heisenberg na presença de inomogeneidades causadas principalmente pela introdução de ligações substitucionais (defeitos nas ligações) e por efeitos de borda. Interessados então em determinar a energia do estado fundamental de sistem
Publicado em: 2008
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5. Síntese de compostos com potenciais atividades biológicas ou magnéticas
This thesis is divided in two parts and presents the results of our studies on the synthesis and the study of biological or magnetic proprieties of a series of ligands and their transition metal complexes. Firstly we prepared a series of dithiacarboxilic acids and their metal complexes to investigate the biological activity of these compounds against fungi,
Publicado em: 2008
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6. Corrente elétrica positiva alternada no tratamento de feridas cutâneas de camundongos / Alternating positive eletric chain in the treatment of cutaneous wounds of mice
Foram utilizados 36 camundongos, adultos, fêmeas para estudo da reparação tecidual de feridas cutâneas tratadas com estimulação elétrica de 2mA, durante sete minutos, uma vez ao dia, através do estimulador transcutâneo eletro Kinesis. Os animais foram distribuídos, aleatoriamente, em três grupos de igual número, sendo subdividido em subgrupo cont
Publicado em: 2005
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7. Alternating positive eletric chain in the treatment of cutaneous wounds of mice / Corrente elÃtrica positiva alternada no tratamento de feridas cutÃneas de camundongos
Thirty six female mice had been used to study the repairing of cutaneous wounds which was treated with seven minute electric stimulation of 2mA a day, by using the transcutaneuos kinesis stimulator. They had been distributed in three groups of equal number, being subdivided in sub-groups which have been named: controlled (I) and treatment (II). The animals h
Publicado em: 2005
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8. Influências do ângulo de corte e da anisotropia nas propriedades magnéticas dos aços elétricos o efeito textura / Influences of cut angle and anisotropy in the magnetic properties of electric steel - the texture effect
The present thesis aims firstly to argue theoretically, of what occurs in carbon steel and silicon steel plates for electric ends, when used in transformers, electric motors and generators, and other electromagnetic devices. Secondly, experimental data and results are used to justify the "new" concepts adopted the analyses and conclusions drawn with samples
Publicado em: 2005
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9. Crystal structure of Z-DNA without an alternating purine-pyrimidine sequence.
In left-handed Z-DNA, consecutive nucleotides along the chain alternate in the syn and anti conformations. Purine residues form the syn conformation readily and up to now all Z-DNA crystal structures have sequences of alternating purines and pyrimidines. However, we find that d(C-G-A-T-C-G) with the cytosines brominated or methylated on C-5 crystallizes as Z
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10. Conformational Control of the Interaction of Eukaryotic Elongation Factors EF-1 and EF-2 with Ribosomes
As in the case with prokaryotic systems, Artemia salina elongation factors EF-1 and EF-2 interact with a common site or with closely overlapping sites on the Artemia ribosome. This feature of ribosomal design must restrict interaction with the ribosome to only one of the factors at alternating steps of chain elongation. In support of this view we find that E
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11. Triggered amplification by hybridization chain reaction
We introduce the concept of hybridization chain reaction (HCR), in which stable DNA monomers assemble only upon exposure to a target DNA fragment. In the simplest version of this process, two stable species of DNA hairpins coexist in solution until the introduction of initiator strands triggers a cascade of hybridization events that yields nicked double heli
National Academy of Sciences.
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12. Tandem linkage and unusual RNA splicing of the T-cell receptor beta-chain variable-region genes.
The variable-region (V) genes of the murine T-cell receptor beta chain exist largely as single-element subfamilies. The V beta 5 and V beta 8 genes belong to the only two known three-member V beta subfamilies. We present studies on the linkage of these six genes and show that the genomic organization is that of alternating V beta 5 and V beta 8 genes. Our an