Results 41 to 50 of about 46,660 (311)

Plant Genetic Engineering: Technological Pathways, Application Scenarios, and Future Directions

open access: yesAdvanced Science, EarlyView.
This review maps the fast‐evolving landscape of plant genetic engineering, linking enabling platforms with trait‐focused applications in architecture optimization, stress resilience, yield improvement, and quality enhancement. It highlights how genome editing, transgenic strategies, and emerging multi‐gene approaches reshape breeding pipelines, while ...
Peilin Wang   +4 more
wiley   +1 more source

Contrasted Chemical Weathering Rates in Cratonic Basins: The Ogooué and Mbei Rivers, Western Central Africa

open access: yesFrontiers in Water, 2021
Despite the absence of tectonic activity, cratonic environments are characterized by strongly variable, and in places significant, rock weathering rates. This is shown here through an exploration of the weathering rates in two inter-tropical river basins
Jean-Sébastien Moquet   +13 more
doaj   +1 more source

Pathway Weathering in Granitoid Rocks from Central Region of Angola: Geochemical and Mineralogical Data [PDF]

open access: yes, 2012
The Central Region of Angola is characterized by the abundance of granitoid rocks, whose weathering “in situ” originated the so-called residual soils. The textural, geochemical and mineralogical properties of these soils depend not only on the chemical ...
Bonito, Fernando A. B.   +5 more
core  

Organic carbon transport and C/N ratio variations in a large tropical river: Godavari as a case study, India [PDF]

open access: yes, 2005
This study gives an insight into the source of organic carbon and nitrogen in the Godavari river and its tributaries, the yield of organic carbon from the catchment, seasonal variability in their concentration and the ultimate flux of organic and ...
Balakrishna, Keshava, Probst, Jean-Luc
core   +2 more sources

Do outgrower schemes enhance technology adoption and productivity? Evidence from maize farmers in Northern Ghana

open access: yesAgribusiness, EarlyView.
Abstract Nucleus outgrower schemes are contractual arrangements where well‐resourced large‐scale farmers (nucleus farmers) are empowered by development support agencies to take charge of smallholder farmers, by providing them with market access and the necessary training on agronomic practices and farm inputs for production.
Dominic Tasila Konja, Awudu Abdulai
wiley   +1 more source

Study of an abnormal occurrence of Oxisols in strongly undulated relief in the south of Minas Gerais, Brazil, with support of pXRF and geomorphology

open access: yesCiência e Agrotecnologia, 2021
Oxisols are the main soils in Brazil and they classically occur in stable and gentle geomorphic surfaces. However, in the south of Minas Gerais State, Oxisols have been observed under strongly undulated relief, a very rare condition for these soils in ...
Fernanda Almeida Bócoli   +5 more
doaj   +1 more source

Flowpath Partitioning Controls Chemical Weathering Fluxes in the Tropics

open access: yesWater Resources Research
Tropical watersheds are thought to exert a strong control on the global carbon cycle because elevated temperature and rainfall rates promote the chemical weathering of silicate rocks.
William J. Larsen   +4 more
doaj   +1 more source

Vegetation controls on weathering intensity during the last deglacial transition in southeast Africa.

open access: yesPLoS ONE, 2014
Tropical climate is rapidly changing, but the effects of these changes on the geosphere are unknown, despite a likelihood of climatically-induced changes on weathering and erosion.
Sarah J Ivory   +5 more
doaj   +1 more source

Factorization Machine‐Based Active Learning for Functional Materials Design with Optimal Initial Data

open access: yesAdvanced Intelligent Discovery, EarlyView.
This work investigates the optimal initial data size for surrogate‐based active learning in functional material optimization. Using factorization machine (FM)‐based quadratic unconstrained binary optimization (QUBO) surrogates and averaged piecewise linear regression, we show that adequate initial data accelerates convergence, enhances efficiency, and ...
Seongmin Kim, In‐Saeng Suh
wiley   +1 more source

Heterogeneity in ice sheets- vs. monsoon rainfall-induced silicate weathering from high to low latitudes

open access: yesnpj Climate and Atmospheric Science
One of the most challenging problems in paleoclimate research is how orbital cyclicities forced Earth’s climate variations during the late Quaternary.
Xuguang Feng   +13 more
doaj   +1 more source

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