Results 21 to 30 of about 21,626 (262)

A new terrestrial snail species (Gastropoda: Bulimulidae) from the Región de Antofagasta, northern Chile [PDF]

PeerJ, 2017
A new species of Scutalus Albers, 1850 (Gastropoda: Bulimulidae), Scutalus chango sp. n., is described from a coastal area of northern Chile. Empty shells of this new species were found buried in sand and under boulders and rocks in the foothills of the ...
Juan Francisco Araya, Abraham S.H. Breure   +1 more
doaj   +2 more sources

Psychological Stress Associated Bile Acid Reprogramming Promotes Hepatocellular Carcinoma Progression

Advanced Science, EarlyView.
Depression is increasingly recognized as a risk factor for chronic diseases, yet its biological impact on cancer remains unclear. Using data from more than 490 000 participants across three international cohorts, we show that depression significantly increases the risk of liver cancer.
Ruijiang Zeng, Mengmeng Wang, Kang Wang, Zhuo Xing, Yulong Hong, Tongtong Li, Geng Zong, Chong Yang, Dan Zhang, Zhangling Chen, Xin Jin   +10 more
wiley   +1 more source

Cancer‐Associated BCL‐2 Mutants Reveal Mechanisms Towards Venetoclax Resistance

Advanced Science, EarlyView.
Venetoclax (VEN) resistance in chronic lymphocytic leukemia arises from diverse BCL2 mutations. We map mechanisms contributing to VEN resistance across common BCL‐2 variants. G101V and D103Y reduce drug binding and increase sequestration of pro‐apoptotic proteins. V156D blocks VEN allosterically.
Jonas Aufdermauer, Ian de Ridder, Mahjoobeh Ehsani, Marasim Khan, Justin Kale, Lukas P. Frenzel, David Andrews, Spyridoula Karamanou, Ana J. Garcia‐Saez, Geert Bultynck   +9 more
wiley   +1 more source

First report of metals and metalloids on bone and claw tissues of Humboldt penguins (Spheniscus humboldti)

Austral Journal of Veterinary Sciences
Samples of bones (humerus) and claws of adult Humboldt penguins (Spheniscus humboldti) were opportunistically obtained from twenty-seven carcasses at two important nesting sites in northern Chile: Chañaral Island (CHI) and Pan de Azúcar Island (PAI). The
Kolawole E. Adesina, Winfred Espejo, José E. Celis, Marco Sandoval, Aaron J. Specht   +4 more
doaj   +1 more source

Advancing Fruit Bioimpedance Monitoring With Sustainable, Soft, And Bio‐Based Electrodes Beyond ECG

Advanced Electronic Materials, EarlyView.
Electrical impedance spectroscopy enables non‐destructive fruit quality monitoring, but conventional ECG and needle electrodes compromise signal stability, fruit physiology, and sustainability. This perspective highlights the transition toward soft, biocompatible, and biodegradable electrode interfaces based on natural substrates, bio‐derived ...
Sundus Riaz, Ahmed Rasheed, Angelo Zanella, Almudena Rivadeneyra, Paolo Lugli, Luisa Petti, Pietro Ibba   +6 more
wiley   +1 more source

PINTURAS RUPESTRES Y CONTEXTOS ARQUEOLÓGICOS DE LA PRECORDILLERA DE ARICA (EXTREMO NORTE DE CHILE)

Estudios Atacameños
Las evidencias de los sitios Pampa El Muerto 3 (PM-3), Pampa El Muerto 8 (PM-8) y Tangani 1 (TAN-1) permiten reafirmar que el arte rupestre de la precordillera en el extremo norte de Chile se asocia a una colonización más bien tardía de este espacio ...
Marcela Sepúlveda, Magdalena García, Elisa Calás, Carlos Carrasco, Calogero Santoro   +4 more
doaj   +1 more source

Altitude, heredity and body proportions in northern Chile

American Journal of Physical Anthropology, 1979
AbstractRecent studies of the effects of hypoxia on human growth and adult size have focused mainly on the variability of single measurements. In this paper we explore changes with altitude and ethnicity (Spanish‐Aymara ancestry) in body proportions of permanent residents of an altitudinal gradient (0–4000 meters) in northern Chile.
Palomino, Hernán, Mueller, William H., Schull, William J.   +2 more
openaire   +3 more sources

Keeping Pace or Falling Behind? The Depth of Latin American Trade Agreements

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This article examines whether Latin American countries are keeping pace with global trends in trade agreement depth or falling behind. Using 681 agreements (1970–2019), we develop the Depth Index of Trade Agreements (DITA) to weight provisions endogenously through factor analysis based on co‐occurrence patterns.
Raphael Gomes da Silva, Fernanda Aparecida Silva, Lia Nogueira   +2 more
wiley   +1 more source

First record of Cheilopogon xenopterus (Refinesque, 1810) (Beloniformes, Exocoetidae), Whitetip Flyingfish, on the Chilean coast [PDF]

Check List
We report the incidental capture of an adult flying fish, Cheilopogon xenopterus, off the coast of Arica, northern Chile. This marks the first documented occurrence of the species in Chilean waters and a notable southward range extension.
Felipe Méndez-Abarca, Renzo Pepe-Victoriano, Daniel Mujica, Hernán Padilla, Julio San-Martín-Órdenes, Enrique A. Mundaca   +5 more
doaj   +3 more sources

Ancient Leishmaniasis in a Highland Desert of Northern Chile

PLoS ONE, 2009
Leishmaniasis is an infectious disease endemic today in many areas of South America.We discovered morphologic and molecular evidence of ancient infections in 4 female skulls in the archaeological cemetery of Coyo Oriente, in the desert of San Pedro de Atacama, Northern Chile.
Maria Antonietta Costa, Carney Matheson, Lucia Iachetta, Agustín Llagostera, Otto Appenzeller   +4 more
openaire   +4 more sources