Results 41 to 50 of about 2,084,614 (325)

A review of the fossil record of turtles of the clade Pan-Chelydridae [PDF]

open access: yes, 2016
Turtles of the total clade Pan-Chelydridae have a relatively sparse fossil record that reaches back to the Late Cretaceous (Santonian). The clade was only present in North America during the Cretaceous but spread along unclear routes to Asia and Europe ...
Joyce, Walter G.
core   +1 more source

TOMM20 as a driver of cancer aggressiveness via oxidative phosphorylation, maintenance of a reduced state, and resistance to apoptosis

open access: yesMolecular Oncology, EarlyView.
TOMM20 increases cancer aggressiveness by maintaining a reduced state with increased NADH and NADPH levels, oxidative phosphorylation (OXPHOS), and apoptosis resistance while reducing reactive oxygen species (ROS) levels. Conversely, CRISPR‐Cas9 knockdown of TOMM20 alters these cancer‐aggressive traits.
Ranakul Islam   +9 more
wiley   +1 more source

The climatic sensitivity of the forest, savanna and forest-savanna transition in tropical South America.

open access: yesNew Phytologist, 2010
*We used a climate-vegetation-natural fire (CVNF) conceptual model to evaluate the sensitivity and vulnerability of forest, savanna, and the forest-savanna transition to environmental changes in tropical South America.
M. Hirota   +3 more
semanticscholar   +1 more source

An expedition into architecture and urbanism of the Global South [PDF]

open access: yes, 2016
The nations of Africa, Central and Latin America, and most of Asia are collectively known as the Global South, which includes practically 157 of a total of 184 recognized states in the world according to United Nations reports.
Grierson, David, Salama, Ashraf M.
core  

Escape from TGF‐β‐induced senescence promotes aggressive hallmarks in epithelial hepatocellular carcinoma cells

open access: yesMolecular Oncology, EarlyView.
Chronic TGF‐β exposure drives epithelial HCC cells from a senescent state to a TGF‐β resistant mesenchymal phenotype. This transition is characterized by the loss of Smad3‐mediated signaling, escape from senescence, enhanced invasiveness and metastatic potential, and upregulation of key resistance modulators such as MARK1 and GRM8, ultimately promoting
Minenur Kalyoncu   +11 more
wiley   +1 more source

An Unnoticed Chapter of Americanism: The Second American Congress of Lima and the Leadership of Justo Arosemena (1864-1865) [PDF]

open access: yes, 2019
Nuevos intentos europeos de reconquista y monarquización de América Latina llevan a los gobiernos sudamericanos a organizar el Segundo Congreso americano de Lima en 1864.
Reza, Germán A. de la
core   +1 more source

Inhibitor of DNA binding‐1 is a key regulator of cancer cell vasculogenic mimicry

open access: yesMolecular Oncology, EarlyView.
Elevated expression of transcriptional regulator inhibitor of DNA binding 1 (ID1) promoted cancer cell‐mediated vasculogenic mimicry (VM) through regulation of pro‐angiogenic and pro‐cancerous genes (e.g. VE‐cadherin (CDH5), TIE2, MMP9, DKK1). Higher ID1 expression also increased metastases to the lung and the liver.
Emma J. Thompson   +11 more
wiley   +1 more source

Breaking middle income traps in a post Covid-19 world: an introduction to the special issue [PDF]

open access: yes, 2021
This Special Issue of Nova Economia presents papers from the workshop "Development, Lock-Ins, Traps and Catch Up: India, China, South Africa, South Korea and Latin America" that took place at Universidade Federal de Minas Gerais (UFMG), Belo Horizonte ...

core  

Ubiquitination of transcription factors in cancer: unveiling therapeutic potential

open access: yesMolecular Oncology, EarlyView.
In cancer, dysregulated ubiquitination of transcription factors contributes to the uncontrolled growth and survival characteristics of tumors. Tumor suppressors are degraded by aberrant ubiquitination, or oncogenic transcription factors gain stability through ubiquitination, thereby promoting tumorigenesis.
Dongha Kim, Hye Jin Nam, Sung Hee Baek
wiley   +1 more source

Transient Cenozoic tectonic stages in the southern margin of the Caribbean plate : U-Th/He thermochronological constraints from Eocene plutonic rocks in the Santa Marta massif and Serranía de Jarara, northern Colombia [PDF]

open access: yes, 2011
We use U-Th/(He) zircon and apatite thermochronology and Al in hornblende geobarometry from Eocene granitoids of the Sierra Nevada de Santa Marta and Guajira uplifted massifs in northern Colombia to elucidate the exhumation history of the northern South ...
Cardona, A.   +9 more
core   +3 more sources

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