Results 211 to 220 of about 1,804,889 (285)

Analysis of the Internal Anatomy of Distal Root Canals of Mandibular Molars: A Micro‐Computed Tomography Study

X-Ray Spectrometry, EarlyView.
ABSTRACT Detailed knowledge of the internal anatomy of the root canal system and its variations is essential for selecting appropriate endodontic treatment protocols. Micro‐computed tomography (micro‐CT) allows for nondestructive, high‐resolution three‐dimensional (3D) analysis of extracted teeth, enabling precise evaluation of root canal morphology ...
F. L. P. dos Santos, A. S. Machado, R. T. Lopes, D. F. de Oliveira   +3 more
wiley   +1 more source

Accuracy of saliva tests for SARS-CoV-2 diagnosis during the pandemic in Rio de Janeiro, Brazil. [PDF]

Sci Rep
Fiorani-Nascimento R, Marques KL, de Carvalho VJ, Dias FP, Cabral JM, Dos Santos CWN, de Souza MR, Franco CM, de Freitas FAD, Candéa A, de Carvalho EM, Ribeiro-Alves M, Castro R.   +12 more
europepmc   +1 more source

Characterization of a Portable Computed Tomography System for In Situ Analysis of Wooden Sculptures in Cultural Heritage

X-Ray Spectrometry, EarlyView.
ABSTRACT Portable X‐ray computed tomography (portable CT) has become an important tool for the non‐destructive investigation of cultural heritage objects, particularly when in situ analysis is required. This work presents the experimental characterization and application of a transportable cone‐beam CT system designed for the inspection of large and ...
Anderson de Paula, Isis Franzi, Roberta Borges, Josiane Cavalcante, Olga Araujo, Alessandra Machado, Ricardo Tadeu Lopes, Davi Ferreira de Oliveira   +7 more
wiley   +1 more source

20 years experience of RhD alloimmunization at a state referral center in Rio de Janeiro: a study of 481 cases. [PDF]

Rev Bras Ginecol Obstet
Peixoto FM, Beserra AHN, Dos Santos MCP.
europepmc   +1 more source

Multielemental Analysis in Rice Grains by Total Reflection X‐Ray Fluorescence

X-Ray Spectrometry, EarlyView.
ABSTRACT Rice (Oryza sativa) is a staple food cultivated worldwide and represents a significant source of essential nutrients for humans. However, this cereal may also contain potentially toxic elements including chromium, arsenic, and lead typically present at trace concentrations (ng.g−1).
F. T. S. Tsuyama, R. G. Leitão, C. G. L. Canellas, G. C. Ferreira, J. L. Pereira, R. S. Santos, J. T. Assis, D. F. Oliveira, M. J. Anjos   +8 more
wiley   +1 more source

Characterization of a novel unliked 12 X-STR typing assay for forensic purposes in an admixed Rio de Janeiro population sample. [PDF]

Genet Mol Biol
Mello ICTE, Simas MCDC, Silva R, Moura Neto RS.   +3 more
europepmc   +1 more source

Integration of Micro‐CT and XRF Mapping for Multimodal 3D Analysis of Polychrome Wooden Artifacts

X-Ray Spectrometry, EarlyView.
ABSTRACT Over the past 5 years, computer applications have become crucial to archeological research. Since the 1990s, the focus has transitioned from data management tools to the development of virtual models. Recently, digital documentation of cultural heritage has gained considerable focus, with 3D modeling of objects.
Josiane E. Cavalcante, Olga Araujo, Alessandra Machado, Roberta M. P. S. Borges, Isis V. N. S. Franzi, Anderson G. de Paula, Roberta Leitão, Marcelino dos Anjos, Renato Freitas, Ricardo T. Lopes, Davi F. Oliveira   +10 more
wiley   +1 more source

Profile of Multidrug-Resistant Bacteria in Intensive Care Units of a Maternal and Child Hospital in Rio de Janeiro, Brazil. [PDF]

Antibiotics (Basel)
de Oliveira Villar LM, Costa NDL, Reis DBC, Reis AT, Braga LL, de Oliveira Kegele FC, da Conceição Borges Lopes M, da Silva Neta Soares MF, Moreira MEL, da Silva NCM, Gomes LHF, Guida LDC.   +11 more
europepmc   +1 more source

Demographic buffering in natural populations: A multi‐level perspective

Journal of Animal Ecology, EarlyView.
We introduce a multi‐level framework that unites stochastic elasticities with nonlinear selection to test demographic buffering. Applying it across mammals reveals a key insight: ecological robustness to variability often decouples from evolutionary constraint, reshaping how we understand resilience under environmental stochasticity.
Gabriel Silva Santos, Samuel J. L. Gascoigne, André Tavares Corrêa Dias, Maja Kajin, Roberto Salguero‐Gómez   +4 more
wiley   +1 more source

Yellow fever outbreak temporarily changes dispersal patterns in an endangered primate

Journal of Animal Ecology, EarlyView.
Golden lion tamarins had their annual adult survival strongly impacted by a yellow fever outbreak in 2017–2018. At the same time, they temporarily changed their dispersal patterns. Despite a 30% decline, the population has come back to levels higher than pre‐outbreak ones. Abstract Disease outbreaks can severely affect populations in the wild. However,
Aurore Ponchon, Rémi Choquet, Andreia F. Martins, Carlos Ruiz‐Miranda, Cécile H. Albert, Valeria Romano   +5 more
wiley   +1 more source