Results 41 to 50 of about 7,520,055 (277)
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]
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 The introduction discusses Williams' theories of working-class writing and his previously unpublished lecture, 'British Working-Class ...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]
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
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.
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
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]
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
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

