Results 111 to 120 of about 1,292,419 (308)

Advanced deep sea diving equipment [PDF]

open access: yes
Design requirements are generated for a deep sea heavy duty diving system to equip salvage divers with equipment and tools that permit work of the same quality and in times approaching that done on the surface.
Danesi, W. A.
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Viral ecogenomics across oxic and anoxic zones of the Yongle Blue Hole

open access: yesEnvironmental Microbiome
Background Deep ocean blue holes are characterized by distinct physicochemical gradients and complex biological processes, and Yongle Blue Hole (YBH) in the South China Sea (SCS) is the world’s deepest (301 m) underwater cavern with unique environmental ...
Ming Yang   +6 more
doaj   +1 more source

Marine Sound Separation Algorithm Based on Time-Frequency Interleaved Attention and Integrated Filtering Module

open access: yes水下无人系统学报
To address the problems of refined perception and discrimination of sound features caused by complex marine soundscapes and the variable characteristics of underwater target signals, this paper proposed a marine sound separation algorithm based on time ...
Yudi WANG, Mingzhong YANG, Lixin LIU
doaj   +1 more source

Nd & Hf concentrations and isotopic compositions in the Baltic Sea [PDF]

open access: yes, 2012
Within a process study in the framework of the international GEOTRACES program and led by the Institute of Oceanology of the Polish Academy of Sciences (IOPAN) a two-week cruise on the R/V Oceania sailed in November 2011 to investigate the distribution ...
Chen, Tianyu   +2 more
core  

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Non universality of structure functions and measurement of the strange sea density

open access: yes, 1993
We show that there is no real conflict between the two determinations of the strange sea density from the opposite--sign dimuon production and from the difference of the $F_2$ structure functions measured in neutrino and muon deep inelastic scattering ...
Barone, V.   +4 more
core   +3 more sources

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

open access: yesFEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas   +3 more
wiley   +1 more source

Festival publicity helped change fishing policy. [PDF]

open access: yes, 2007
In the late 1990s, I saw chunks of coral reef being trawled up off the UK at a time when the fishing industry was moving into deeper waters along the European Continental Shelf edge. As a trained marine biologist I was flabbergasted, since the text books
Hall-Spencer, JM
core   +1 more source

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