Results 41 to 50 of about 900,993 (312)

Effect of Freezing-Thawing Cycles on the Elastic Waves’ Properties of Rocks

Geosciences, 2022
Freezing thawing cycles are known to play an important role in fracture propagation on rock mass and thus in rock slope instabilities. In laboratories, this phenomenon can be studied through the measurement of the velocities of elastic waves. Seven types
Muriel Gasc-Barbier, Véronique Merrien-Soukatchoff   +1 more
doaj   +1 more source

Strength through diversity: how cancers thrive when clones cooperate

Molecular Oncology, EarlyView.
Intratumor heterogeneity can offer direct benefits to the tumor through cooperation between different clones. In this review, Kuiken et al. discuss existing evidence for clonal cooperativity to identify overarching principles, and highlight how novel technological developments could address remaining open questions.
Marije C. Kuiken, Maartje Witsen, Emile E. Voest, Krijn K. Dijkstra   +3 more
wiley   +1 more source

Mary Anning Rocks and its Outreach Impacts

Geoconservation Research
The Mary Anning Rocks charity started as a campaign to raise a statue for the noted early paleontologist and fossil collector Mary Anning in her hometown, Lyme Regis. Now, after the statue was raised, the campaign is still a vibrant and engaging example
Anya Pearson
doaj   +1 more source

Mineralogical and Chemical Investigations of the Amguid Crater (Algeria): Is there Evidence on an Impact Origin?

Geosciences, 2020
Mineralogical and chemical investigations were carried out on intra-craterial bedrocks (Lower Devonian sandstone) and regolithic residual soil deposits present around the Amguid structure, to discuss the hypothesis of its formation through a relatively ...
Gian Paolo Sighinolfi, Maurizio Barbieri, Daniele Brunelli, Romano Serra   +3 more
doaj   +1 more source

Effect of petrographic composition and chemistry of aggregate on the local and general fracture response of cementitious composites

Fracture and Structural Integrity, 2022
This paper concerns the results of research into the influence of the composition of rock inclusions on the fracture response of cement-based composite specimens.
M. Vyhl�dal, I. Rozsypalov�, H. �imonov�, B. Kucharczykov�, P. Rovnan�kov�, Z. Ker�ner, L. Vavro, M. Vavro, J. Nemecek   +8 more
doaj   +1 more source

Geo-energetics of Ukrainian crystalline shield [PDF]

, 2019
Purpose. To develop an analytical method which allows investigating the energy condition of rocks within the Ukrainian Crystalline shield. Methodology.
Khomenko, O. Ye., Kononenko, M. M.
core  

Recycling of the Proterozoic crystalline basement in the Coastal Block (Moroccan Meseta): New insights for understanding the geodynamic evolution of the northern peri-Gondwanan realm [PDF]

, 2018
Detrital zircon age spectra from the siliciclastic rocks of the Lalla Mouchaa Calcschists and El Jadida Dolomitic formations (the Coastal Block of the Moroccan Meseta) are dominated by Paleoproterozoic and Ediacaran ages.
El Attari, Ahmed, El Houicha, Mohamed, Ennih, Nasser, Ezzouhairi, Hassan, Fekkak, Abdelilah, Gama, Cristina, Jouhari, Abdellatif, Pereira, Manuel Francisco, Silva, Jose Brandão   +8 more
core   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Innovation and Development for Atomic Fluorescence Spectrometry Analysis

Yankuang ceshi, 2013
Atomic fluorescence spectrometry (AFS) has such characteristics of chemical vapor separation and non dispersive optical system. It is one of the most successful analytical methods available to determine trace As, Sb, Bi, Hg, Se, Te and Ge elements ...
LI Gang, HU Si-xian, CHEN Lin-ling
doaj  

Synaptic plasticity in fronto-insular circuits underlying stress susceptibility and resilience

Neuroscience Research
Chronic stress may trigger depressive episodes in vulnerable individuals but the underlying mechanisms remain incompletely understood. Converging lines of evidence indicate that these mechanisms may converge on the dysregulation of synaptic transmission ...
Devin Rocks, Conor Liston
doaj   +1 more source