Results 71 to 80 of about 437,940 (300)

Assessing spatial–temporal heterogeneity of China’s landscape fragmentation in 1980–2020

open access: yesEcological Indicators, 2022
Exploring the spatial–temporal heterogeneity of landscape fragmentation contributes to realizing the dynamic evolution of the landscape pattern and understanding the impacts of physical-geographical environment and human activities on landscape systems ...
Lilin Zou, Jianying Wang, Mengdi Bai
doaj   +1 more source

Landform and landscape mapping, French Guiana (South America) [PDF]

open access: yes, 2013
In this paper two geomorphologic maps (landform level and landscape level) are presented covering the French Guianan rainforest (84,000 km2) using full-resolution Shuttle Radar Topography Mission (SRTM) data. The entire country was segmented into 224,000
Betbeder, Julie   +5 more
core   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Valuing Natural Space and Landscape Fragmentation in Richmond, VA [PDF]

open access: yes, 2016
Hedonic pricing methods and GIS (Geographic Information Systems) were used to evaluate relationships between sale price of single family homes and landscape fragmentation and natural land cover. Spatial regression analyses found that sale prices increase
Carpenter, Lee Wyatt
core   +1 more source

Complexity in action: Untangling latent relationships between land quality, economic structures and socio-spatial patterns in Italy [PDF]

open access: yes, 2017
Land quality, a key economic capital supporting local development, is affected by biophysical and anthropogenic factors. Taken as a relevant attribute of economic systems, land quality has shaped the territorial organization of any given region ...
Bajocco, Sofia   +7 more
core   +3 more sources

The application of a remotely-sensed diversity index to monitor degradation patterns in a semi-arid, heterogeneous, South African landscape

open access: yesJournal of Arid Environments, 1999
We present a remotely-sensed degradation assessment technique based on the measurement of landscape heterogeneity (a key determinant of degradation status). The moving standard deviation index (MSDI) is derived by passing a moving standard deviation filter across the Landsat TM band 3 (red band).
Frank Tanser, A.R. Palmer
openaire   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Evaluation and Prediction of Cultivated Land Fragmentation Based on Landscape Pattern Index in Jizhou District of Tianjin City

open access: yesShuitu baochi tongbao, 2022
[Objective] The effects of cultivated land fragmentation was evaluated and predicted in order to provide a useful reference to address the problem of cultivated land fragmentation in the Jizhou District of Tianjin City. [Methods] The temporal and spatial evolution characteristics of cultivated land fragmentation from 2000 to 2020 were analyzed by means
Zhang Ge, Ma Jie, Xu Song
openaire   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

open access: yesMolecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice   +16 more
wiley   +1 more source

Temporal dynamics of aquatic communities and implications for pond conservation [PDF]

open access: yes, 2012
Conservation through the protection of particular habitats is predicated on the assumption that the conservation value of those habitats is stable. We test this assumption for ponds by investigating temporal variation in macroinvertebrate and macrophyte ...
Andrew Hull   +39 more
core   +1 more source

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