Results 61 to 70 of about 1,920,761 (281)

Atmahaú Pakmát [PDF]

open access: yes, 2017
A journey into the heart the US-Mexico borderlands reveals a world of ancient rivers, mud, and brick.Radio-Television ...
Quevedo, Cameron Gates
core   +1 more source

A Synergistic Hydrogel‐Microalgae Platform for Dual‐Targeting of Intestinal and Neuroimmune Dysfunction in Inflammatory Bowel Disease

open access: yesAdvanced Science, EarlyView.
A bioactive hydrogel incorporating Chlorella vulgaris and paeoniflorin within a carboxymethyl chitosan/sodium alginate matrix cross‐linked with genipin is developed for inflammatory bowel disease therapy. The hydrogel exhibits gastric stability and intestine‐responsive release.
Jing Lu   +8 more
wiley   +1 more source

A Revised Model for Muscarine Biosynthesis Involving Lysine Trimethylation

open access: yesAngewandte Chemie, EarlyView.
The fatal mushroom toxin l‐(+)‐muscarine is one of the most prominent natural products. We elucidated its biosynthetic origin in the sweating mushroom Collybia rivulosa based on incorporation of stable isotope‐labeled compounds and extensive mass spectrometric analyses.
Sebastian Dörner   +4 more
wiley   +2 more sources

Cooper on Ancient Ethics [PDF]

open access: yes, 2000
This review of John Cooper's fine collection of essays Reason and Emotion focuses mainly on his paper "Contemplation and Happiness: A Reconsideration". In this article, Cooper alters his view -- found in his book Reason and Human Good in Aristotle - on ...
Heinaman, Robert
core  

Attempted DNA extraction from a Rancho La Brea Columbian mammoth (Mammuthus columbi): prospects for ancient DNA from asphalt deposits. [PDF]

open access: yes, 2014
Fossil-bearing asphalt deposits are an understudied and potentially significant source of ancient DNA. Previous attempts to extract DNA from skeletons preserved at the Rancho La Brea tar pits in Los Angeles, California, have proven unsuccessful, but it ...
Farrell, Aisling B   +5 more
core   +1 more source

Affinity‐Based Interactome Mapping of Inositol Pyrophosphates Reveals 4/6‐PP‐InsP5‐Binding Proteins in Plants

open access: yesAdvanced Science, EarlyView.
ABSTRACT Inositol pyrophosphates (PP‐InsPs) are central regulators of eukaryotic signaling events. While certain PP‐InsP isomers have been conclusively linked to the regulation of phosphate homeostasis through interaction with SPX domain‐containing proteins in plants, the functions of the recently discovered isomer 4/6‐PP‐InsP5 remain largely unknown ...
Kevin Ritter   +10 more
wiley   +1 more source

Synergistic Pyro‐Phototronics and Structural Anisotropy in CsAg2I3/GaN Heterostructures for High‐Performance Polarization‐Sensitive UV Photodetectors

open access: yesAdvanced Science, EarlyView.
The development of polarization‐sensitive ultraviolet photodetectors is limited by poor heterojunction quality and low polarization sensitivity. This study integrates synthesized CsAg2I3 single crystals with intrinsic non‐centrosymmetry into van der Waals heterojunction devices, demonstrating pronounced pyro‐phototronic effect.
Yalin Zhai   +9 more
wiley   +1 more source

Photobook Design of Ancient Temples in Magelang Regency [PDF]

open access: yes, 2019
Indonesia is a country with vast cultural diversity as well as high historical value, due to many historical sites found in various regions including Magelang Regency, Central Java.
Arsa, M. A. (Maghfirudin)   +1 more
core  

Physical Mathematics and The Fine-Structure Constant [PDF]

open access: yes, 2018
Research into ancient physical structures, some having been known as the seven wonders of the ancient world, inspired new developments in the early history of mathematics.
Sherbon, Michael A.
core   +4 more sources

Ancient DNA Damage [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2013
Under favorable conditions DNA can survive for thousands of years in the remains of dead organisms. The DNA extracted from such remains is invariably degraded to a small average size by processes that at least partly involve depurination. It also contains large amounts of deaminated cytosine residues that are accumulated toward the ends of the ...
Dabney, J. ; https://orcid.org/0000-0001-8893-1245   +2 more
openaire   +4 more sources

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