Results 41 to 50 of about 471,273 (365)

Identification of ecological restoration standard for lakes on the Inner Mongolia Plateau, China

open access: yesEcological Indicators
Determining the Ecological Restoration Standards (ERS) for lakes, within the context of natural climatic conditions, is imperative for the protection of the ecological environment and water resources in northern China. Based on climate data gathered from
Rong Ma   +4 more
doaj   +1 more source

Drivers of peat accumulation rate in a raised bog: impact of drainage, climate, and local vegetation composition [PDF]

open access: yesMires and Peat, 2017
We used variation partitioning to assess the relative importance of drainage, climate and local vegetation composition for the development of a raised bog. As a case study we selected Teiči (Teici) Bog in Latvia (north-east Europe). Explanatory variables
N. Stivrins   +8 more
doaj   +1 more source

Spacetime Splitting, Admissible Coordinates and Causality

open access: yes, 2012
To confront relativity theory with observation, it is necessary to split spacetime into its temporal and spatial components. The (1+3) timelike threading approach involves restrictions on the gravitational potentials $(g_{\mu \nu})$, while the (3+1 ...
A. Lichnerowicz   +23 more
core   +1 more source

Holocene flood records and human impacts implied from the pollen evidence in the Daming area, North China Plain

open access: yesFrontiers in Earth Science
Understanding the environmental significance of pollen and spores in alluvial plains is important for stratigraphic correlation and paleoenvironmental reconstruction.
Jinsong Yang   +5 more
doaj   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

More on the chronology of Celtic sound changes [PDF]

open access: yes, 2010
Graham Isaac’s recent monograph (2007) deals with the chronology of Celtic sound changes. Remarkably, the author completely disregards the relative chronology which I published 28 years earlier (1979).
Kortlandt, Frederik H. H.
core  

Mercury's geochronology revised by applying Model Production Functions to Mariner 10 data: geological implications [PDF]

open access: yes, 2009
Model Production Function chronology uses dynamic models of the Main Belt Asteroids (MBAs) and Near Earth Objects (NEOs) to derive the impactor flux to a target body.
Blewett   +30 more
core   +1 more source

The Aging Blood: Cellular Origins, Circulating Drivers, and Therapeutic Potential

open access: yesAging and Cancer, EarlyView.
As a conduit linking all organs, the blood system both reflects and actively drives systemic aging. This review highlights how circulating pro‐aging and antiaging factors and age‐associated hematopoietic stem cell dysfunction contribute to immunosenescence and multi‐organ decline, positioning the hematopoietic system as a target for aging intervention.
Hanqing He, Jianwei Wang
wiley   +1 more source

Chronological and Spatial Distribution of Skeletal Muscle Fat Replacement in FHL1‐Related Myopathies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Variants in the FHL1 gene cause FHL1‐related myopathies (FHL1‐RMs), a group of neuromuscular disorders with diverse clinical presentations. This study aimed to comprehensively characterize the spatial and temporal patterns of skeletal muscle fat replacement throughout the whole body in FHL1‐RMs, to examine disease progression over ...
Rui Shimazaki   +8 more
wiley   +1 more source

Tree height strongly affects estimates of water-use efficiency responses to climate and CO2 using isotopes

open access: yesNature Communications, 2017
Intrinsic water-use efficiency (W i ) reconstructions using tree rings often disregard developmental changes in W i as trees age. Here, the authors compare W i across varying tree sizes at a fixed CO2 level and show that ignoring developmental changes ...
R. J. W. Brienen   +14 more
doaj   +1 more source

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