Results 71 to 80 of about 368,619 (299)

Problems of sedimentation in small dams in Zambia [PDF]

open access: yes, 1997
Journal ArticleAn inventory of small dams in Zambia and the results of a preliminary analysis of sediment loads for rivers and reservoirs are reported. A regression approach was used to determine relationships between drainage area and sediment load for ...
Sichingabula, Henry
core   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Evaluation of acoustic environmental effects and improvement method of ecological fish-nest bricks in the Yangtze River Basin: A model-based case study

open access: yesGlobal Ecology and Conservation
With the rapid development of the Yangtze River Basin, the issue of underwater noise pollution has become increasingly severe, which has adversely affected aquatic creatures, particularly fish.
Hongmei Zhang   +5 more
doaj   +1 more source

Numerical study of double-diffusive sedimentation in thermally stratified fluid

open access: yes, 2020
We conduct Eulerian–Lagrangian simulations to study double-diffusive sedimentation in stratified flows. The results show the pattern of double-diffusive sedimentation and the transition to the pattern of Rayleigh–Taylor instability when the size of ...
Chen-Yen Hung; Yang-Yao Niu; Yi-Ju Chou
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

open access: yesMolecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary   +1 more
wiley   +1 more source

Confluence characteristics and regulation stage of shoals at Minjiang River mouth

open access: yesShui kexue jinzhan
Tributary-mouth channels of mountain rivers are affected by the game between the tributary and main stream, the water and sediment characteristics of which are characterized by both natural rivers and the reach affected by backwater from the main stream.
Xi HE   +4 more
doaj   +1 more source

Nearshore and inner shelf sedimentation on the east Coromandel coast, New Zealand [PDF]

open access: yes, 2013
The east Coromandel coastline on the northeast coast of New Zealand has been characterised by localised erosion problems since its commercial subdivision.
Bradshaw, Barry Edward
core  

MITF maintains genome stability in nonmelanocyte lineages

open access: yesMolecular Oncology, EarlyView.
MITF is essential for melanocyte survival and acts as an oncogene in 10%–20% of melanomas. We show that MITF depletion causes genome instability in nonmelanocytic cells, leading to LATS2‐mediated P53 activation, cell cycle arrest, and apoptosis. This study highlights the role of MITF as a genome maintenance factor beyond the melanocyte lineage. Created
Drifa H. Gudmundsdottir   +13 more
wiley   +1 more source

The hydrodynamic paradox of submerged roots: numerical investigation of multi-scale flow and local scour mechanisms

open access: yesEngineering Applications of Computational Fluid Mechanics
Despite the widespread implementation of vegetative bioengineering, riverbank failure remains prevalent. Uncovering the hydrodynamic mechanisms governing vegetated banks is therefore imperative. To elucidate these interactions under submerged conditions,
Meng Chen   +8 more
doaj   +1 more source

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