Results 41 to 50 of about 7,520,055 (277)

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Introduction: Raymond Williams and Working-Class Writing [PDF]

open access: yes, 2020
Introduction to a Special Issue of Key Words on Working-Class Writing, co-edited and co-authored with Dr Phil O'Brien. The introduction discusses Williams' theories of working-class writing and his previously unpublished lecture, 'British Working-Class ...
O'Brien, Phil, Wilson, Nicola
core   +4 more sources

The Effect of Different Levels of Cadmium and Organic Manure on Some Properties of Tomato Seedling ( Lycopersicon esculuntum ) Mill cv.Polyana [PDF]

open access: yesAl-Qadisiyah Journal For Agriculture Sciences, 2012
The experiment is conducted during Winter season 2009-2010 in the Research Station of College of Agriculture Al-Muthana University. Cadmium as a heavy metals is applied at the rates ( 0 , 3 , and 6 mg/kg soil ) as CdCl2 , while organic matter ( O M ...
Baker Jilab Hadi, Turki Muftin Sa
doaj   +1 more source

Key words for 2020: Pandemic, emergency, anomie

open access: yesEmergency Care Journal, 2021
Dear Editor, In 2020, global society was disrupted by the COVID-19 pandemic, which has confronted everyone with an unusual, unknown situation, an unprecedented humanitarian emergency.
Liliana Lorettu
doaj   +1 more source

Classification of key words from open–ended question.

open access: yes, 2023
Classification of key words from open–ended question.
Michel Prade (14701193)   +6 more
core   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Calculate of Activation Energy and Temperature Coefficient of Amidase in Some Soils . [PDF]

open access: yesAl-Qadisiyah Journal For Agriculture Sciences, 2012
Ten soils are chosen from different geographic sites from Iraq :Abu Ghraib(Three soils) ,Al-Jadriya ,Dyala (Tow soils) , AL-Sulaimaniya,Al-Kut ,Al-Nasriya , Al-Dewniya they differ in their chemical and physical properties , to determine Kinetic values ...
Radhi Kadhum, Luma Salih
doaj   +1 more source

Search key words.

open access: yes, 2016
Search key words.
Sofia Gruskin (81726)   +5 more
core   +1 more source

Soft motions encoded by the fold and mediated by conserved hinge sites drive V‐ATPase allosteric machinery and autoinhibition

open access: yesFEBS Letters, EarlyView.
Vacuolar H+‐ATPase (V‐ATPase) is a multisubunit rotary proton pump that acidifies intracellular compartments. Using elastic network models, we identified conserved hinge residues that govern its large‐scale functional motions. We show that intrinsically encoded ‘soft modes’ drive critical functional transitions, including rotary catalysis and ...
Diksha Parwana   +3 more
wiley   +1 more source

Key words in pharmacology.

open access: yes, 2012
Key words in pharmacology.
Oscar Gallego (126921)   +7 more
core   +1 more source

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