Results 31 to 40 of about 214,319 (261)

Quantitative and Qualitative Composition of Soil Organic Matter in Samples of Ice Complex from Central Yakutia, Eastern Siberia

open access: yesApplied and Environmental Soil Science, 2018
Investigation of organic carbon and nitrogen stock was conducted at depths greater than one meter in the ice complex in central part of Yakutia (Russia).
Andrey Shepelev   +2 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Soil Quality Assessment of Phaeozems and Luvisols from the Kujawy Region (Central Poland) / Ocena cech użytkowych czarnych ziem i gleb płowych rejonu Kujaw

open access: yesSoil Science Annual, 2015
To assess the soil quality of Phaeozems and Luvisols from Kujawy region (Kujawy-Pomerania Province, Poland), the soil quality indicators such as: content of organic matter and nutrients, as well as bulk density were used.
Kobierski Mirosław   +2 more
doaj   +1 more source

Impact of Effective Microorganisms (EM) Application on the Physical Condition of Haplic Luvisol

open access: yesAgronomy, 2020
The study set out to determine changes in the soil air-water properties, the water-stable aggregate share and organic carbon content as effects of a five-year application of effective microorganisms (EM-A).
Jacek Pranagal   +2 more
doaj   +1 more source

Dissolved organic matter and microbial carbon of Protocalcic Chernozems of different land management

open access: yesБюллетень Почвенного института им. В.В. Докучаева, 2022
Water-extractable organic matter is the most active and mobile form of soil carbon. The other active fraction and extremely biolabile is the carbon constituent of microorganisms.
V. A. Kholodov   +5 more
doaj   +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

INTERPRETING 14C AGES OF THE TOTAL ORGANIC CARBON CONTENT OF PREHISTORIC POTTERY

open access: yesРадиоуглерод в археологии и палеоэкологии: прошлое, настоящее, будущее. Материалы международной конференции, посвященной 80-летию старшего научного сотрудника ИИМК РАН, кандидата химических наук Ганны Ивановны Зайцевой, 2020
Археологическая хронология для некоторых археологических памятников Восточной Европы основана в основ- ном на прямом керамики. Даты по пищевому нагару на сосудах также были получены, если это было возможно, но гораздо больше 14C датировок было получено по общего содержания органического углерода (TOCC) в че- репках.
openaire   +1 more source

ZW4864‐mediated inhibition of the β‐catenin/BCL9/BCL9L complex reveals therapeutic potential in bladder cancer

open access: yesMolecular Oncology, EarlyView.
BCL9 and BCL9L drive bladder cancer progression by enhancing β‐catenin signaling, promoting proliferation, migration, invasion, and organoid growth. Genetic depletion of BCL9(L) suppresses malignant phenotypes, while pharmacological disruption of the β‐catenin/BCL9(L) complex with ZW4864 inhibits canonical Wnt signaling and tumor‐associated cellular ...
Roland Kotolloshi   +11 more
wiley   +1 more source

Accumulation effect of soil aggregate organic carbon in mixed forest in open-pit coal mine

open access: yesMeitan kexue jishu
Mining activities result in the depletion of soil nutrients and carbon reservoirs. A pressing need exists to examine soil nutrient status, particularly the recovery of organic matter following prolonged revegetation in open pit mines.
Xiaoping ZHANG   +3 more
doaj   +1 more source

Total and watersoluble organic matter content in soil under various methods of forestry

open access: yesІнтродукція Рослин, 2014
Water-base organic compounds are among the most labile fractions of soil organic matter. Their content are considered a sensitive indicator of soil quality and changes quantitatively under the influence of anthropogenic pressure.
N.V. Zaimenko   +2 more
doaj   +1 more source

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