Results 61 to 70 of about 8,930 (266)

Dairy Heifer and Bermudagrass Pasture Responses to Rotational and Continuous Stocking

open access: yesJournal of Dairy Science, 1994
During 1990 and 1991, pastures of 'Callie' bermudagrass [Cynodon dactylon (L.) Pers.] located near Gainesville, FL (29 degrees 60' N latitude) were used to determine the effects of three grazing methods on performance of 250-kg Holstein heifers (Bos taurus) and forage nutritive value and botanical composition.
B W, Mathews   +2 more
openaire   +2 more sources

Bridging Polymer Brushes and Coatings Through Ultra‐Thick Growth by Surface‐Initiated Photoiniferter Polymerization

open access: yesAdvanced Functional Materials, EarlyView.
Surface‐initiated photoiniferter‐mediated polymerization (SI‐PIMP) enables the controlled growth of UHMW polymer brushes with multi‐micrometer thicknesses, bridging conventional brushes and bulk‐like coatings. UHMW brushes are synthesized through a controlled/living process; they provide low friction and enhanced wear resistance under aqueous ...
Elena Avanzini   +8 more
wiley   +1 more source

Biochemical changes in Salminus brasiliensis due to successive captures and stocking densities - doi: 10.4025/actascibiolsci.v35i1.13055

open access: yesActa Scientiarum: Biological Sciences, 2012
This study evaluated the biochemical changes associated to successive captures of Salminus brasiliensis reared at different stocking densities. The experiment was conducted in tanks with a capacity of 1,000 L, connected to a recirculating system with ...
Neiva Braun   +4 more
doaj   +1 more source

Mineral Deposition From Liquid Precursors Triggered by Complementary Polyelectrolytes

open access: yesAdvanced Functional Materials, EarlyView.
Polyelectrolyte additives can delay or prevent crystal nucleation in supersaturated solutions of insoluble mineral salts such as calcium carbonate. This work reports that adding a second, oppositely‐charged polyelectrolyte leads to immediate mineral crystallization from such metastable solutions.
Mohammed Kayes Patoary   +6 more
wiley   +1 more source

Animal production and canopy attributes of Cynodon pasture managed under continuous stocking with wethers at three levels of forage allowance

open access: yesRevista Brasileira de Zootecnia, 2012
The objective of the present experiment was to evaluate the effect of forage allowance (3, 6 or 9 kg of green leaves dry matter (DM)/100 kg of body weight (BW)) on both animal performance and attributes of Cynodon dactylon var.dactylon canopy managed ...
Márcia Vendrúsculo dos Santos   +5 more
doaj   +1 more source

Sulfation‐Tunable Peptide‐Glycosaminoglycan Hydrogels for Hematopoietic Stem and Progenitor Cell Expansion

open access: yesAdvanced Functional Materials, EarlyView.
Co‐assembly of rationally designed glycosaminoglycan‐binding peptides with sulfated glycosaminoglycans yields supramolecular hydrogels with tunable mechanics and matrix‐mediated cytokine retention. The glycosaminoglycans thereby act as cofactors, driving a coil‐to‐β‐sheet transition that triggers gelation.
Shirel Veretnik   +8 more
wiley   +1 more source

Sward structure and nutritive value of Alexandergrass fertilized with nitrogen

open access: yesAnais da Academia Brasileira de Ciências, 2016
This experiment evaluated forage production, sward structure, stocking rate, weight gain per area and nutritive value of forage as grazed by beef heifers on Alexandergrass (Urochloa plantaginea (Link) Hitch) pasture fertilized with nitrogen (N): 0; 100 ...
Paulo R. Salvador   +7 more
doaj   +1 more source

Reconfigurable Au Nanoparticle Monolayers on Regenerated Cellulose Hydrogels: Highly Sensitive SERS Detection of Polystyrene Micro/Nanoplastics With Interpretable Deep Learning

open access: yesAdvanced Functional Materials, EarlyView.
A regenerated cellulose (RC) hydrogel‐based SERS substrate integrating a Marangoni‐transferred gold nanoparticle self‐assembled monolayer (Au‐SAM) is fabricated. Reswelling‐induced hotspot formation enhances polystyrene micro/nanoplastics (PS MNPs) detection in complex matrices, providing reproducible, high‐throughput SERS signals across diverse ...
Youngho Jeon   +5 more
wiley   +1 more source

Intensive rearing of European catfish larvae (Silurus glanis L.) at different stocking densities and their effect on fish production parameters

open access: yesЖивотновъдни науки, 2021
During the present research, two studies are conducted (Study I and Study II), in two consecutive years, by applying the same scheme of stocking density. Each study has duration of 16 days.
Vasilka Krasteva   +2 more
doaj  

2D Co‐Assembly of Solid Acids Enables Stable Superprotonic Conduction Above 260°C

open access: yesAdvanced Functional Materials, EarlyView.
A two‐dimensional co‐assembly strategy integrates antimony phosphate and phosphotungstic acid nanosheets into free‐standing inorganic lamellar membranes with confined acid–acid interfaces. The resulting interfacial hydrogen‐bond network enables anhydrous proton conductivity exceeding 0.1 S cm−1 at 260°C and supports stable high‐temperature fuel‐cell ...
Qiuning Li   +8 more
wiley   +1 more source

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