Results 261 to 270 of about 737,029 (342)

Fertilization 2: Polyspermic Fertilization

open access: yesFertilization 2: Polyspermic Fertilization
During fertilization in animals, a haploid egg nucleus fuses with a haploid sperm nucleus to restore the diploid genome. In most animals including mammals, echinoderms, and teleostei, the penetration of only one sperm into an egg is ensured at fertilization because the entry of two or more sperm is prevented by polyspermy block systems in these eggs ...
openaire  

Integrating Cooperative Dual Active Sites Onto a Plasmonic Photocatalyst for Synergistic Promotion of the Reduction and Oxidation Half‐Reactions in Ammonia Synthesis

open access: yesAdvanced Science, EarlyView.
An efficient N2 fixation photocatalyst, Ru‐WO3−x/CoOx, is prepared by integrating respective reduction and oxidation sites onto a plasmonic semiconductor. Owing to optimized reaction kinetics and promoted charge carrier separation by the synergistic effect between the two types of active sites, the involved reduction and oxidation half‐reactions are ...
Boyuan Wu   +6 more
wiley   +1 more source

Designing a Fertilizing Robot Application Considering Energy Efficiency [PDF]

open access: diamond
Jü̈ri Olt   +3 more
openalex   +1 more source

Electrochemical Nitrate Reduction Reaction to Ammonia at Industrial‐Level Current Densities

open access: yesAdvanced Science, EarlyView.
This review starts from the mechanism and theoretical basis of electrochemical nitrate reduction reaction (NO3−RR), and systematically summarizes and discusses the design strategies of industrial‐level current density catalysts. In addition, the progress of industrial‐level NO3−RR‐based electrolyzers, including flow reactor and membrane electrode ...
Zhijie Cui   +4 more
wiley   +1 more source

When states require fully insured employers to cover in vitro fertilization (IVF), what do self-insured employers provide? [PDF]

open access: yesJ Assist Reprod Genet
Dupree JM   +6 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy