Results 31 to 40 of about 72,409 (263)

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Anthropogenic Influences on Atmospheric CO2. [PDF]

open access: yes, 2011
We identify anthropogenic contributions to atmospheric CO2 measured at Mauna Loa using a statistical automatic model selection algorithm (Autometrics). We find that vegetation, temperature and other natural factors alone cannot explain the trend or the variation in CO2 growth.
David Hendry, Felix Pretis
openaire   +3 more sources

More evidence for anthropogenic influence on climate change [PDF]

open access: yesProceedings of the National Academy of Sciences, 2013
Studies of climate change by means of optimal detection of faint signals embedded in natural variability have been underway for several decades now (1⇓–3), and some more recent ones are referred to in refs. 4⇓⇓–7. These studies are also sometimes referred to as “fingerprint” studies. The idea is that if the space–time pattern of response to one or more
openaire   +2 more sources

Genesis of Soils with Anthropogenic Influences and their Classification

open access: yesBulgarian Journal of Soil Science, 2021
The genesis of anthropogenic soils is widely studied. Soil changes or the formation of new soil types due to human activities are a basic and major factor about anthropogenic soils. A genetic-diagnostic characteristics of anthropogenic influences and the current processes, which influence the formation of specific by composition, properties and ...
Teoharov, Metodi, Kirilov, Ivaylo
openaire   +2 more sources

Data on morphology and biology of the fish rotan Perccottus Glenii Dybowski, 1877 (Perciformes, Eleotrididae) of kuybyshev water reservoir

open access: yesЮг России: экология, развитие, 2015
The article is the first to present information on the ecological peculiarities of habitation for the fish rotan in Kuybyshev water reservoir; its morphometric characteristic, age and sex structure, terms of spawning, prolificacy, feeding, morphological ...
D. Yu. Semenov
doaj   +1 more source

Water Area Variation and River–Lake Interactions in the Poyang Lake from 1977–2021

open access: yesRemote Sensing, 2023
Lakes are an important part of the Earth’s surface. Poyang Lake is China’s largest freshwater lake with complex hydrological relationships and unique rhythmic changes.
Biqing Tian   +3 more
doaj   +1 more source

Bias‐Triggered Conductivity Relaxation (BCR): A Unique Tool to Simultaneously Investigate Thermodynamics, Kinetics, and Electrostatic Effects of Oxygen Reactions in MIEC Thin Films

open access: yesAdvanced Materials, EarlyView.
This work develops bias‐triggered conductivity relaxation as a novel technique to study oxygen reactions in mixed ionic‐electronic conducting thin films by integrating electrochemical titration and electrical conductivity relaxation to achieve synchronous multi‐parameter characterization, providing simultaneous electronic, ionic, and extraordinarily ...
Alexander Stangl   +4 more
wiley   +1 more source

Kirlianographic Investigation Of The Anthropogenic Factors Influence On Biota.

open access: yesJournal of Education, Health and Sport, 2017
Kurik M. V., Pesotskay L. A., Glukhova N. V., Nikogosyan L. R. Kirlianographic investigation of the anthropogenic factors influence on biota. Journal of Education, Health and Sport. 2017;7(1):359-368 eISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.268736 http://ojs.ukw.edu.pl/index.php/johs/article/view/4237 The journal has had 7 ...
M. V. Kurik   +3 more
openaire   +4 more sources

Serial discontinuity along the Descoberto River Basin, Central Brazil Descontinuidade serial ao longo da bacia do rio Descoberto, Brasil Central

open access: yesActa Limnologica Brasiliensia, 2010
AIM: The Descoberto Basin was studied as a discontinuous ecological system through one seasonal cycle (about one year), at 13 sampling sites; METHODS: The connectivity was analyzed in relation to environmental and limnological characteristics along the ...
Weliton José da Silva   +3 more
doaj   +1 more source

Time series of δ26Mg variability in precipitation of north‐west Germany

open access: yesThe Depositional Record, 2022
This study presents δ26Mg values, Mg2+ concentrations, δ18O and δ2H values of monthly collected rain and snow samples between 2014 and 2017 from north‐west Germany. The δ26Mg values of snow are similar to those of rain.
Sylvia Riechelmann   +2 more
doaj   +1 more source

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