scispace - formally typeset
Search or ask a question
Institution

Sao Paulo State University

EducationSão Paulo, Brazil
About: Sao Paulo State University is a education organization based out in São Paulo, Brazil. It is known for research contribution in the topics: Population & Large Hadron Collider. The organization has 55715 authors who have published 100436 publications receiving 1375332 citations.


Papers
More filters
Journal ArticleDOI
TL;DR: This study investigates whether structural configuration of streams suggests habitat simplification on a basin scale and fish assemblage structure follows stream habitat configurations, and whether the combination of grass-dominated, completely deforested, heavily silted conditions with recent land use conversion may cause a future habitat homogenization followed by a fish fauna homogenized on a regional scale.
Abstract: This study investigates whether (1) structural configuration (considering substrate composition, wood debris, marginal and riparian vegetation) of streams suggests habitat simplification on a basin scale and (2) fish assemblage structure follows stream habitat configurations. Ninety-five sites in two pasture basins in southeastern Brazil were randomly selected. Two passes of electro-fishing were done in a 75-m reach at each site. Ten habitat descriptors related to in-stream and riparian physical structures were evaluated at each stream reach. Two groups of streams were identified by principal component analysis: a grassy and a non-grassy group. In comparison to non-grassy sites, grass-dominated streams exhibited a more homogenous fish fauna due to lower species diversity and higher dominance, especially by the guppy Poecilia reticulata, a highly generalist exotic species. The grassy group had not only the most simplified habitat but also the most simplified fish fauna, and the combination of grass-dominated, completely deforested, heavily silted conditions with recent land use conversion may cause a future habitat homogenization followed by a fish fauna homogenization on a regional scale.

140 citations

Journal ArticleDOI
TL;DR: A predominance of the M2 phenotype in the tumor microenvironment of OCSCC could contribute to local immunosuppression, via TGF-β production, and consequently greater lymph node involvement and reduced patient survival time.

140 citations

Journal ArticleDOI
TL;DR: Dentin is considered the best pulpal protective, and calcium hydroxide has proved, through numerous studies, its capability of inducing the formation of a mineralized bridge over pulpal tissue.
Abstract: The characteristics of calcium hydroxide come from its dissociation into calcium and hydroxyl ions. The action of these ions on tissues and bacteria explains the biological and antimicrobial properties of this substance. Under the conditions of this retrospective of literature, based on scientific evidences, it is possible to state that: 1. Dentin is considered the best pulpal protective, and calcium hydroxide has proved, through numerous studies, its capability of inducing the formation of a mineralized bridge over pulpal tissue. 2. It is necessary, whenever possible, to provide time for calcium hydroxide paste to manifest its potential of action on the microorganisms present in endodontic infections. The maintenance of a high concentration of hydroxyl ions can change bacteria enzymatic activity and promote its inactivation. 3. The site of action of hydroxyl ions of calcium hydroxide includes the enzymes in the cytoplasmic membrane. This medication has a large scope of action, and therefore is effective on a wide range of microorganisms, regardless their metabolic capability. In microbial world, cytoplasmic membranes are similar, irrespective from microorganisms morphological, tinctorial and respiratory characteristics, which means that this medication has a similar effect on aerobic, anaerobic, Gram-positive and Gram-negative bacteria. 4. Calcium hydroxide as temporary dressing used between appointments promotes better results on the periapical healing process than the treatment in one appointment.

140 citations

Journal ArticleDOI
TL;DR: This research attacked the mode of action of EMTs by focusing on the “spatially reprograming” the response of the immune system to foreign substances.

140 citations

Journal ArticleDOI
TL;DR: The experimental protocols tested provided significant tooth-bleaching improvement associated with decreased toxicity to pulp cells, which may be an interesting alternative to be tested in clinical situations intended to reduce tooth sensitivity and pulp damage.

140 citations


Authors

Showing all 56201 results

NameH-indexPapersCitations
Russel J. Reiter1691646121010
Tobin J. Marks1591621111604
Joseph T. Hupp14173182647
Luca Lista1402044110645
Sergio F Novaes1381559101941
Wagner Carvalho135139594184
Alberto Santoro1351576100629
Andre Sznajder134146498242
Luiz Mundim133141389792
Eduardo De Moraes Gregores133145492464
Helio Nogima132127484368
Pedro G Mercadante129133186378
D. De Jesus Damiao128116282707
Sandra S. Padula128113177174
Sudha Ahuja127101675739
Network Information
Related Institutions (5)
Universidade Federal de Minas Gerais
75.6K papers, 1.2M citations

96% related

University of São Paulo
272.3K papers, 5.1M citations

96% related

Universidade Federal do Rio Grande do Sul
89.4K papers, 1.4M citations

96% related

Federal University of Paraná
46.6K papers, 546.5K citations

95% related

State University of Campinas
104.6K papers, 1.8M citations

95% related

Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023127
2022765
20216,826
20206,949
20196,316
20186,314