Results 51 to 60 of about 6,503,587 (307)

Biomass DNA: An Emerging Building Block for Advanced Materials

Advanced Materials, EarlyView.
Biomass DNA is rapidly emerging from its traditional role as a genetic blueprint to serve as a versatile abundant, highly programmable polymeric building block. This review highlights the transformation of macroscopic bulk biomass DNA into next generation of functional materials, spanning from dynamic hydrogels, sustainable bioplastics, and high ...
Yuwei Hu, Itamar Willner, Li Niu
wiley   +1 more source

A Noninvasive Approach to Study Localized Forces in 3D Epithelia

Advanced Materials, EarlyView.
Epithelial morphogenesis depends on dynamic mechanical coupling between adhesion complexes and the cytoskeleton, yet its regulation in polarized 3D tissues remains elusive. We developed a noninvasive strategy using cell‐like elastic microbeads to quantify local forces in intact epithelia.
Niels Gouirand, Muhamet Ibrahimi, Claire Valotteau, Brice Lecouffe, André Le Bivic, Dominique Massey‐Harroche, Felix Rico, Matthias Merkel, Delphine Delacour, Elsa Bazellières   +9 more
wiley   +1 more source

3D‐Printed Actuator Powered by Liquid Crystal Elastomer Muscles at the Water–Air Interface

Advanced Materials Technologies, EarlyView.
Soft robots for unstructured environments require responsive, durable actuators. Liquid crystal elastomers (LCEs) provide large reversible deformations under thermal or optical stimuli. Direct ink writing enables fabrication of LCE actuators integrated with silicone, with mesogen chemistry and oligomers optimized for printable inks.
Cecilie Ryberg, Stefan Pendlmayr, Jan Skov Pedersen, Jens Vinge Nygaard, Jan P. F. Lagerwall, Brigitte Städler   +5 more
wiley   +1 more source

Estrous Synchronization and Fixed-Time Artificial Insemination

EDIS, 2016
The economic success of beef cow-calf operations depends on the production of one healthy calf per cow per year. To achieve this goal, cow-calf producers need to overcome several obstacles related to the cow, bull, and offspring.
Vitor R. G. Mercadante, Darren D. Henry, Francine M. Ciriaco, Pedro L. P. Fontes, Nicky Oosthuizen, G. Cliff Lamb   +5 more
doaj   +3 more sources

The Effect of Husbandry System Information on Consumer Willingness to Pay for Dairy Products From Cow-Calf-Contact Systems

German Journal of Agricultural Economics
This study investigates consumers’ willingness to pay (WTP) for dairy products from a production system with cow-calf-contact (CCC) based calf management.
Reinhard Uehleke, Jeanette Klink-Lehmann, Silke Hüttel   +2 more
doaj   +1 more source

Prevalence of, and risk factors associated with, perinatal calf mortality in pasture-based Holstein-Friesian cows [PDF]

, 2008
peer-reviewedRecent publications indicate that the prevalence of perinatal mortality has increased in some dairy industries and an increased proportion of this loss is not associated with the traditional risk factors for perinatal mortality.
Mee, John F, Cromie, A. R., J.F. Mee, D.P. Berry, A.R. Cromie, Berry, Donagh   +5 more
core   +1 more source

AI‐Powered Framework for Evaluating Drug Efficacy for Three‐Dimensional In Vitro Cancer Models in Robot‐Assisted Production

Advanced Robotics Research, EarlyView.
An AI‐powered, robot‐assisted framework automatically produces, images, and analyzes 3D tumor spheroids to evaluate drug efficacy. Integrated modules handle spheroid formation, live/dead staining, brightfield imaging, and automated image analysis, including spheroid segmentation, viability and metrics to assess the drug treatment efficacy. The workflow
Dalia Mahdy, Jesus Nieves, Lukas Königer, Matthias Peindl, Fabio Erhard, Marc Möllmann, Anke Klingner, Markus Münig, Bibin Babu, Thomas Schwarz, Marco Metzger, Gudrun Dandekar, Maximiliane Wußmann, Jan Hansmann   +13 more
wiley   +1 more source

Efficient and Robust Standing Postures of Quadruped Robots

Advanced Robotics Research, EarlyView.
A calibrated static framework estimates load, optimizes torques, and adapts posture so quadruped robots stand efficiently and robustly under external payloads, achieving up to 50% lower torque demand. Inspired by the natural posture adjustments of animals under external loading, this article presents an optimization‐based framework for minimizing joint
Mohamad Kanaan, Hamza Jomaa, Jack Challita, Kawthar Zaidan, Riad Saab, Hussein Hussein   +5 more
wiley   +1 more source

Environmental and food security implications of livestock abortions and calf mortality: a case study in Kenya and Tanzania

Frontiers in Sustainable Food Systems
This study investigates the environmental and food security implications of livestock abortions and calf mortality in Tanzanian dairy systems and Kenyan beef systems by utilizing data from previously published studies.
Endale B. Gurmu, Endale B. Gurmu, Barend Bronsvoort, Barend Bronsvoort, Elizabeth A. J. Cook, Elizabeth A. J. Cook, Felix Lankester, Felix Lankester, Şeyda Özkan, Peri K. Rosenstein, George Semango, Nick Wheelhouse, Nick Wheelhouse, Andreas Wilkes, Claudia Arndt   +14 more
doaj   +1 more source

Body size in beef cows and its influence on calf production

Semina: Ciências Agrárias, 2020
Cattle farming becomes more intensive when the productive efficiency of the cows is increased, and nutrition is adjusted to the animal biotype. Eighty purebred Charolais and Nellore cows and their crosses between 3 and 7 years of age, were grouped for ...
Carina Crizel da Vara, Magali Floriano da Silveira, Ricardo Zambarda Vaz, João Restle, Diego Soares Machado, Stefani Macari   +5 more
doaj   +1 more source