Results 51 to 60 of about 173,035 (204)

A Comprehensive Simulation Study of Physicochemical and Geochemical Interactions on Immiscible CO2-LSWAG Injection in Carbonates

open access: yesEnergies, 2022
Low-salinity water-alternating-CO2 (CO2-LSWAG) injection has been widely studied and employed due to its capability to promote enhanced oil recovery (EOR).
Ladislane dos Santos Bastos   +3 more
doaj   +1 more source

Rui Barbosa e a federação [PDF]

open access: yes, 1996
O olhar e participação de Rui Barbosa na federação, seus princípios e sua repulsa à intervenção nos Estados, seu papel de construtor do regime federativo.
Marinho, Josaphat
core   +1 more source

A Influência da Imersão Institucional e Regional na Cooperação entre Pesquisadores no Brasil [PDF]

open access: yes, 2009
A análise do campo científico como uma rede social vem ampliando o entendimento das relações entre pesquisadores como atividade social. Além do significado dado pelos relacionamentos entre pares, questões estruturais emergem, fomentando explicações sobre
Graeml, Alexandre, Rossoni, Luciano
core   +4 more sources

Surgery in Ovarian Cancer—Brazilian Society of Surgical Oncology Consensus

open access: yesJournal of Surgical Oncology, Volume 132, Issue 4, Page 640-653, September 15, 2025.
ABSTRACT Surgical management in epithelial ovarian cancer (EOC) has a significant impact on overall survival (OS) and progression‐free survival (PFS). The Brazilian Society of Surgical Oncology (BSSO) supported an expert‐led task force for consensus: the best EOC surgery is provided by experienced and specialized trained surgeons in cancer centers ...
Audrey Tieko Tsunoda   +20 more
wiley   +1 more source

Preparation of Mesoporous SiO2‐Pillared Lamellar Titanoniobate Catalysts for Bioethanol Dehydration

open access: yesJournal of Catalysts, Volume 2014, Issue 1, 2014., 2014
The lamellar perovskite K0,8Ti0,8Nb1,2O5 was prepared by solid state reaction, and its protonic form was used in a sequence of intercalation steps with n‐butylamine, cetyltrimethylammonium bromide (CTABr), and tetraethyl orthosilicate (TEOS). After calcination, a high surface area, mesoporous SiO2‐pillared titanoniobate, was obtained.
Olivalter Pergentino   +4 more
wiley   +1 more source

A Robust Learning Methodology for Uncertainty-Aware Scientific Machine Learning Models

open access: yesMathematics, 2022
Robust learning is an important issue in Scientific Machine Learning (SciML). There are several works in the literature addressing this topic. However, there is an increasing demand for methods that can simultaneously consider all the different ...
Erbet Almeida Costa   +4 more
doaj   +1 more source

uma análise comparada Brasil-Portugal [PDF]

open access: yes, 2008
A Convenção sobre os Direitos da Criança (CDC), documento internacional com força de lei aprovado em 1989 pelas Nações Unidas, tem implicações directas para os profissionais que trabalham com a infância.
Marôpo, Lídia
core  

Estratégia Nacional da Federação da Rússia: aspectos geopolíticos

open access: yes, 2020
The Russian Federation aims to resume and maintain a position of political, economic and military actor of first order within the international system. As part of its national strategy, Russia has been using its ability to project power in order to seek ...
M. A. Coutinho
semanticscholar   +1 more source

Changing human–nature relationships: Insights from Guinea‐Bissau woodlands

open access: yesPeople and Nature, Volume 6, Issue 6, Page 2587-2601, December 2024.
Abstract The ecological impacts of landscape changes resulting in significant simplification of natural systems have been extensively studied worldwide. Yet, few studies have examined how such biophysical changes affect the value local communities place on nature and their relationships with it.
Ana Leite   +4 more
wiley   +1 more source

Determination of Mobility and Charge Carriers Concentration from Ionic Conductivity in Sodium Germanate Glasses above and below Tg

open access: yesInternational Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013
The ionic conductivity and viscous flow data of xNa2O · (1 − x)GeO2, 0.05 < x < 0.296, have been collected in a large temperature range, below and above their glass transition temperatures (Tg). A microscopic model is proposed, assuming that the ionic displacement would result from the migration of interstitial positively charged cationic pairs whose ...
Marcio Luis Ferreira Nascimento   +2 more
wiley   +1 more source

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