Results 131 to 140 of about 986,532 (289)
Removing dead trees will not save us from fast-moving wildfires. [PDF]
DellaSala DA +8 more
europepmc +1 more source
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang +20 more
wiley +1 more source
Small Gap Dynamics in High Mountain Central European Spruce Forests-The Role of Standing Dead Trees in Gap Formation. [PDF]
Sedmáková D +8 more
europepmc +1 more source
When a master transcription factor (TF) is lost, bacteria can rapidly rewire gene regulatory networks by co‐opting related regulators. Using experimental evolution in Pseudomonas fluorescens, we show that TF promiscuity (low‐level, non‐cognate binding) provides the raw material for rewiring. Successful co‐option follows a predictable hierarchy governed
Tiffany B. Taylor, Alan M. Rice
wiley +1 more source
Microbial Communities in Standing Dead Trees in Ghost Forests are Largely Aerobic, Saprophytic, and Methanotrophic. [PDF]
Carmichael MJ +3 more
europepmc +1 more source
Physics‐Embedded Neural Network: A Novel Approach to Design Polymeric Materials
Traditional black‐box models for polymer mechanics rely solely on data and lack physical interpretability. This work presents a physics‐embedded neural network (PENN) that integrates constitutive equations into machine learning. The approach ensures reliable stress predictions, provides interpretable parameters, and enables performance‐driven, inverse ...
Siqi Zhan +8 more
wiley +1 more source
ML Workflows for Screening Degradation‐Relevant Properties of Forever Chemicals
The environmental persistence of per‐ and polyfluoroalkyl substances (PFAS) necessitates efficient remediation strategies. This study presents physics‐informed machine learning workflows that accurately predict critical degradation properties, including bond dissociation energies and polarizability.
Pranoy Ray +3 more
wiley +1 more source
Hillside of dead trees (negative)
Negative photo image of a view of the valley of the Left Hand Fork of the Bear River\u27s East Fork, including a hillside of dead trees, Uinta Mountains of Utah, August ...
Denton, Craig, 1947-
core
This study uncovers an unusual RNAi pathway in the rhizarian pathogen Plasmodiophora brassicae. In the absence of Dicer, a Drosha‐like RNase III protein supports the biogenesis of predominant 21‐nt small RNAs, and two Argonaute proteins mediate small RNA‐guided silencing.
Xiong Zhang +13 more
wiley +1 more source
Brush Control of Dead Trees and Good Grass
Photograph of an up-close shot showing dead trees and good grasses sprayed in 1956 & 1957. The back of the photograph proclaims, "Brush Control. Aerial spray applied in 1956 and 1957. Close-up showing dead trees and good grass.
Cluff, J., Jennings, E.
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