Results 51 to 60 of about 4,913,721 (332)

Clustering and classifying images with local and global variability [PDF]

, 2009
A procedure for clustering and classifying images determined by three classification variables is presented. A measure of global variability based on the singular value decomposition of the image matrices, and two average measures of local variability
Giuliodori, Andrea, Lillo Rodríguez, Rosa Elvira, Peña Sánchez de Rivera, Daniel   +2 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Variability of ambient air ammonia in urban Europe (Finland, France, Italy, Spain, and the UK)

Environment International
This study addressed the scarcity of NH3 measurements in urban Europe and the diverse monitoring protocols, hindering direct data comparison. Sixty-nine datasets from Finland, France, Italy, Spain, and the UK across various site types, including ...
Xiansheng Liu, Rosa Lara, Marvin Dufresne, Lijie Wu, Xun Zhang, Tao Wang, Marta Monge, Cristina Reche, Anna Di Leo, Guido Lanzani, Cristina Colombi, Anna Font, Annalisa Sheehan, David C. Green, Ulla Makkonen, Stéphane Sauvage, Thérèse Salameh, Jean-Eudes Petit, Mélodie Chatain, Hugh Coe, Siqi Hou, Roy Harrison, Philip K. Hopke, Tuukka Petäjä, Andrés Alastuey, Xavier Querol   +25 more
doaj   +1 more source

Mapping the spatial variation of soil moisture at the large scale using GPR for pavement applications [PDF]

, 2014
The characterization of shallow soil moisture spatial variability at the large scale is a crucial issue in many research studies and fields of application ranging from agriculture and geology to civil and environmental engineering.
Benedetto, Andrea, Giudici, Mauro, Mele, Mauro, Ortuani, Bianca, Tosti, Fabio   +4 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

The relationship between thermal spatial variability and mean temperature alters movement and population dynamics

Ecosphere, 2022
The importance of spatial and temporal environmental variation in shaping ecosystem dynamics is well appreciated, yet the ecological consequences of dynamic spatial variability, that is, the temporal patterning of spatial variation, remain unresolved ...
Isaac J. Schuman, Hannah S. Meier, Tamara J. Layden, Samuel B. Fey   +3 more
doaj   +1 more source

Spatial judgment in Parkinson's disease: Contributions of attentional and executive dysfunction [PDF]

, 2019
Spatial judgment is impaired in Parkinson's disease (PD), with previous research suggesting that disruptions in attention and executive function are likely contributors.
Cronin-Golomb, Alice, Moon, Kathryn L.M., Neargarder, Sandy, Salazar, Robert D.   +3 more
core   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

FEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino, Meijie Li, Cécile Fizames, Mattia Adamo, Laurence Lejay, Christian Dubos, Matthieu Platre, Antoine Martin   +7 more
wiley   +1 more source

Among-site variability in the stochastic dynamics of East African coral reefs [PDF]

, 2016
Coral reefs are dynamic systems whose composition is highly influenced by unpredictable biotic and abiotic factors. Understanding the spatial scale at which long-term predictions of reef composition can be made will be crucial for guiding conservation ...
Allen, Katherine A., Bruno, John F., Chong, Fiona, Clancy, Damian, McClanahan, Tim R., Spencer, Matthew, Zychaluk, Kamila   +6 more
core   +6 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source