Results 21 to 30 of about 204,256 (266)

El legado de Darrell Posey: de las investigaciones etnobiológicas entre los Kayapó a la protección de los conocimientos indígenas

open access: yesBoletim do Museu Paraense Emílio Goeldi. Ciências Humanas
Darrell Posey (1947-2001) efectuó sus principales estudios etnobiológicos entre los Mebêngôkre-Kayapó, pueblo de lengua Jê que habita territorios oficialmente reconocidos por el Estado brasileño en la región del alto y medio río Xingú.
Claudia Leonor López Garcés   +1 more
doaj   +1 more source

First principles study of point defects in titanium oxycarbide [PDF]

open access: yes, 2009
We have performed first principles density functional theory calculations to study the formation energy of point defects in TiC, TiO and TiCO compounds. The formation energy of isolated vacancies were obtained for different equilibrium conditions.
Ahuja   +38 more
core   +1 more source

AS CONTRIBUIÇÕES DE UMA UNIVERSIDADE COMUNITÁRIA NO FOMENTO À INOVAÇÃO: UM ESTUDO AMPARADO NO CONCEITO DA TRÍPLICE-HÉLICE [PDF]

open access: yes, 2015
O estudo busca elucidar questões que posicionam uma Instituição de Educação Superior no contexto do desenvolvimento de políticas de inovação, ciência e tecnologia, pautado na elucidação das contribuições de uma universidade comunitária para o ...
FRANCISCO, THIAGO HENRIQUE ALMINO   +3 more
core  

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Sistemas dunares do litoral de Esposende [PDF]

open access: yes, 2002
Ciência Viva - A.N.C.C.T. (Programa Operacional Ciência Tecnologia Inovação - POCTI)Ministério da Ciência e da Tecnologia - Ciência Viva - Biologia no Verão ...
Botelho, Ana C.   +2 more
core  

A new modified Wilson equation for the calculation of vapor–liquid equilibrium of aqueous polymer solutions [PDF]

open access: yes, 2003
A local composition model based on the lattice theory and two-fluid theory, considering the excess heat capacity, which is a modified Wilson equation, is developed for the excess Gibbs energy of aqueous polymer solutions.
Macedo, Eugénia   +3 more
core   +1 more source

Targeted modulation of IGFL2‐AS1 reveals its translational potential in cervical adenocarcinoma

open access: yesMolecular Oncology, EarlyView.
Cervical adenocarcinoma patients face worse outcomes than squamous cell carcinoma counterparts despite similar treatment. The identification of IGFL2‐AS1's differential expression provides a molecular basis for distinguishing these histotypes, paving the way for personalized therapies and improved survival in vulnerable populations globally.
Ricardo Cesar Cintra   +6 more
wiley   +1 more source

PE - 018 Quando o remédio não vem pronto: análise de custo da manipulação de medicamentos para toxoplasmose congênita no SUS

open access: yesJornal de Assistência Farmacêutica e Farmacoeconomia
Introdução: A toxoplasmose congênita é uma condição infecciosa grave, historicamente negligenciada em termos de acesso a medicamentos adequados, cujo tratamento precoce é essencial para evitar desfechos adversos.
Mariana Marzullo Pedreira   +6 more
doaj   +1 more source

Racionalismo renovado e homem novo: de Amorim Viana a Sampaio Bruno [PDF]

open access: yes, 2009
Universidade Católica PortuguesaFundação para a Ciência e a Tecnologia (FCT)Imprensa Naciona-Casa da Moeda (INCM)Fundação Calouste GulbenkianPrograma Opreacional Ciência e Inovação ...
Gama, Manuel
core  

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

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