Results 51 to 60 of about 341,873 (266)

Temporal stability and maintenance mechanisms of alpine meadow communities under clipping and fertilization

Ecology and Evolution, 2021
Negative effects of long‐term overgrazing have been seriously, grasslands temporal stability is an important ecological concern we need to research. Here, we performed a 12‐year‐long (2007–2018) two‐factor controlled experiment on Kobresia humilis meadow
Ting Wang, Chenglong Guo, Silin Sang, Yiting Liu, Gang Liu, Desheng Qi, Zhihong Zhu   +6 more
doaj   +1 more source

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

FEBS 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

Assessing the relationship between biodiversity and stability of ecosystem function – is the coefficient of variation always the best metric?

Ideas in Ecology and Evolution, 2015
The role of biodiversity in regulating the stability of ecosystem functioning (functional stability) has importance for the reliable delivery of ecosystem services.
Tim Carnus, John A Finn, Laura Kirwan, John Connolly   +3 more
doaj  

Temporal Stability of Grassland Soil Moisture Utilising Sentinel-2 Satellites and Sparse Ground-Based Sensor Networks

Remote Sensing
Soil moisture is important for understanding climate, water resources, water storage, and land use management. This study used Sentinel-2 (S-2) satellite optical data to retrieve surface soil moisture at a 10 m scale on grassland sites with low hydraulic
Rumia Basu, Eve Daly, Colin Brown, Asaf Shnel, Patrick Tuohy   +4 more
doaj   +1 more source

Temporal stability of an endemic Mexican treefrog

PeerJ, 2015
The demographic characteristics of an amphibian population fluctuate independently over time, mainly in response to the temporal variation of environmental factors, especially precipitation and temperature. These temporal fluctuations may contribute to the size of an amphibian population and could be used to determine the current ...
Cruz-Ruiz, Griselda, Venegas-Barrera, Crystian S., Sanchez-Sanchez, Hermilo, Manjarrez, Javier   +3 more
openaire   +4 more sources

RNA‐related functions of BRCA2 in transcription, replication, and genome stability

FEBS Letters, EarlyView.
Beyond its role in homologous recombination, BRCA2 regulates R‐loop homeostasis, DNA–RNA hybrid resolution, RNA polymerase II dynamics, and transcriptional activation. Disruption of any of these functions can contribute to genome instability, inflammatory signaling, and tumorigenesis. BRCA2 is a central tumor suppressor protein best known for its roles
Lucia Alvaro‐Aranda, Sreerama Chaitanya Sridhara, Aura Carreira   +2 more
wiley   +1 more source

Genetic Variation in Fruit-to-Grain Conversion Efficiency in Coffea canephora: Heritability, Temporal Instability, and Divergence in Robusta Hybrids and Conilon

Biology
The efficiency of converting ripe fruits into processed beans is an economically relevant component of Coffea canephora production systems, yet its genetic parameters remain poorly characterized in studies that do not partition the genotype × year (G×Y ...
Deurimar Herênio Gonçalves Júnior, Jéssica Almeida Jorge, Júlio César Pereira Machado, Danillo Lima Pereira, Weverton Pereira Rodrigues, Fábio Luiz Partelli   +5 more
doaj   +1 more source

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

FEBS 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

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

FEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux, Christian Lévêque, Fodil Azzaz, Marion Sangiardi, Sarosh R Irani, Michael Seagar, Jacques Fantini, Oussama El Far   +7 more
wiley   +1 more source

Perceived Stress in Adolescence: Structure, Stability, and Its Relationship with Mental Health

European Journal of Investigation in Health, Psychology and Education
Adolescence is a developmental period characterized by increased exposure to stress and elevated vulnerability to mental health problems. The present study examined the structure of perceived stress, its longitudinal stability, and its associations with ...
Maja Ribar, Josip Razum, Goran Milas
doaj   +1 more source