Results 41 to 50 of about 3,887,366 (252)

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Mobility difference index: a quantitative method for detecting human mobility difference

open access: yesGIScience & Remote Sensing
Differences in human mobility reflect temporal variations and spatial differences in urban spaces, including regional functions, physical environments, and geographical sentiments.
Zhaohui Liu   +4 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Regional variation in the pronunciation of /s/ in the Dutch language area [PDF]

open access: yes, 2019
This paper reports on an explorative sociophonetic study of the phoneme /s/ in the Dutch language area. Our aim is to investigate the regional variation in the realisation of this phoneme, and to test experimentally the observation of Collins & Mees ...
Heeren, W.F.L.   +6 more
core   +2 more sources

Air Quality Response to COVID-19 Control Measures in the Arid Inland Region of China: A Case Study of Eastern Xinjiang

open access: yesAtmosphere
This study examined the temporal changes and dispersion of potential sources of the six criteria air pollutants, namely, particulate matter with an aerodynamic diameter of less than 2.5 and 10 μm (PM2.5 and PM10), nitrogen dioxide (NO2), sulfur dioxide ...
Hui Xu   +7 more
doaj   +1 more source

Temporal NDVI Trends and Productivity of Cereal Crops in Al-Anbar Governorate [PDF]

open access: yesمجلة الأنبار للعلوم الزراعية
The study area covered Al-Anbar governorate, specifically in the district of Ameriyat Al-Sumoud, Iraq, Plot 21/Al-Shamiya. The objective was to assess temporal variability using the normalized difference vegetation index (NDVI) and to evaluate the ...
W. Khalaf, M. Hassan
doaj   +1 more source

Spatiotemporal Variability in the Glacier Snowline Altitude across High Mountain Asia and Potential Driving Factors

open access: yesRemote Sensing, 2021
The glacier snowline altitude (SLA) at the end of the melt season is an indicator of the glacier equilibrium line altitude and can be used to estimate glacier mass balance and reconstruct past climate.
Zhongming Guo   +5 more
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Temporal patterns in the size of conservation land transactions [PDF]

open access: yes, 2010
The full or partial acquisition of land remains a predominant focus of terrestrial conservation strategies. Non-governmental organizations play an important role in habitat protection, yet few studies investigate their contribution to conservation ...
Armsworth, Paul R.   +2 more
core   +1 more source

Soil CO2 emission of sugarcane fields as affected by topography Emissão de CO2 do solo sob cultivo de cana-de-açúcar em função da topografia

open access: yesScientia Agricola, 2009
The spatial and temporal variation of soil CO2 emission is influenced by several soil attributes related to CO2 production and its diffusion in the soil.
Liziane de Figueiredo Brito   +4 more
doaj   +1 more source

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