Results 41 to 50 of about 1,161,750 (300)

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Constraining the Cratering Chronology of Vesta

open access: yes, 2014
Vesta has a complex cratering history, with ancient terrains as well as recent large impacts that have led to regional resurfacing. Crater counts can help constrain the relative ages of different units on Vesta's surface, but converting those crater ...
Bottke, William F.   +6 more
core   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen   +4 more
wiley   +1 more source

The history of ancient Palestine from the palaeolithic period to Alexander\u27s conquest [PDF]

open access: yes, 1994
Reviewed Book: Ahlström, Gösta Werner. The history of ancient Palestine from the palaeolithic period to Alexander\u27s conquest.
Dion, Paul E.
core   +1 more source

The African origins of Greek philosophy: Ancient Egypt in retrospect [PDF]

open access: yes, 2017
The demand of philosophizing in Africa has faced a history of criticism that has been particularly Eurocentric and strongly biased. However, that trend is changing with the emergence of core philosophical thinking in Africa.
Anakwue, Nicholas
core   +1 more source

Multiple Twinning in Nacre and Aragonite

open access: yesAdvanced Functional Materials, EarlyView.
Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt   +7 more
wiley   +1 more source

Northern Connections: Interregional Contacts in Bronze Age Northern and Middle Sweden

open access: yesOpen Archaeology, 2020
This article examines northern connections in the Nordic Bronze Age, focusing on interregional contacts in middle and northern Sweden. In the article, we argue that it is important to incorporate a northern perspective in the discussions about the ...
Ojala Karin, Ojala Carl-Gösta
doaj   +1 more source

A roof for the atrium of the House of the Greek Epigrams in Pompeii? A three-dimensional critical study

open access: yesTheoretical Roman Archaeology Journal, 2022
Over the last few decades, a critical revision of prior scholarship concerning Roman domestic space has led to the reappraisal of the traditional account of the atrium suggesting a possibility for this space to be ‘unroofed’.
Danilo Marco Campanaro
doaj   +2 more sources

Determining how atmospheric carbon dioxide concentrations have changed during the history of the Earth [PDF]

open access: yes, 2011
The reconstruction of ancient atmospheric carbon dioxide concentrations is essential to understanding the history of the Earth and life. It is also an important guide to identifying the sensitivity of the Earth system to this greenhouse gas and ...
Badger, Marcus P. S.   +2 more
core   +1 more source

Maya Blue‐Inspired Hybrid Coating for Robust and Superhydrophilic Solar Evaporators Using Commercial Black Acrylic Paint

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates a Maya blue‐inspired hybrid solar evaporator using commercial black acrylic paint, achieving 98% solar‐thermal conversion efficiency and 2.39 kg m−2 h−1 water evaporation rate through a durable, hydrophilic organic–inorganic structure that enables scalable, cost‐effective desalination and wastewater purification.
Dao Thi Dung   +5 more
wiley   +1 more source

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