Results 51 to 60 of about 22,930 (292)

Metabolomics, phytohormone and transcriptomics strategies to reveal the mechanism of barley heading date regulation to responds different photoperiod

open access: yesBMC Genomics
Background The correlation between heading date and flowering time significantly regulates grain filling and seed formation in barley and other crops, ultimately determining crop productivity.
Zhuo Ga   +9 more
doaj   +1 more source

Yak Tunnel

open access: yes, 2022
Donor: Colorado Mining Association.Includes a diagram on back of print photograph.Looking down the Yak Tunnel showing shaft supports and rail lines.Caption reads: "Yak Tunnel - showing new type timbering & 90 pound rails.

core  

High‐Brightness and Ultra‐Long‐Lifetime Spin Quantum Dot Light‐Emitting Diodes Enabled by Efficient Injection of Spin‐Polarized Holes Through a Hybrid Hole Transport Layer

open access: yesAdvanced Science, EarlyView.
This work employs a hybrid hole transport layer to enhance hole transport efficiency, resulting in improved performance for the final device. It achieves an external quantum efficiency of 6.68%, a circularly polarized electroluminescence asymmetry factor of 0.026, and a high luminance of 14,370 cd/cm2, representing the highest luminance reported to ...
Fengqi Qiu   +8 more
wiley   +1 more source

Chiroptical Switching by Stereoselective Photochemical Sigmatropic Rearrangements: Experimental Realization of Calderoselectivity

open access: yesAngewandte Chemie, EarlyView.
Calderoselectivity is established as a stereochemical principle for sigmatropic rearrangements. A homoannulene‐based chiroptical photoswitch undergoes a photochemical [1,11] sigmatropic rearrangement with control of the acyl movement on top of the cyclic π system.
Anne Krenkel   +8 more
wiley   +2 more sources

MN•CS•IO System: Cross‐Species Study for HBB Function in High‐Altitude Hypoxia Adaptation

open access: yesAdvanced Science, EarlyView.
We developed an integrative mesh‐nanorod sorting, chitosan nanoparticle delivery, and intraosseous injection (MN•CS•IO) system to investigate HBB in high‐altitude hypoxia adaptation. Transplanting Tibetan animals' HBB‐modified Lin‐ cells into mice achieved 95.59% transfection efficiency and 8.15% HBB expression. High‐altitude HBB recipients upregulated
Wenqiao Hui   +18 more
wiley   +1 more source

Following the Yik Yak: Using Social Media Observations to Understand Student Needs on College Campuses [PDF]

open access: yes, 2017
In Brief: What can social media tell us about our patrons? We look at Yik Yak through the lens of library ethnography, suggesting that anonymous social media can reveal not only complaints and commentary about library services and spaces, but also ...
Emmelhainz, Celia   +3 more
core  

Robust Reinforcement Learning Control Framework for a Quadrotor Unmanned Aerial Vehicle Using Critic Neural Network

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai   +3 more
wiley   +1 more source

Effects of High-pressure Processing on the Storage Properties of Yak Meat

open access: yesShipin gongye ke-ji, 2023
To investigate the effect of high-pressure processing (HPP) on the quality of yak meat, yak meat was processed under pressure at 200, 400, and 600 MPa for 480 seconds, respectively, and the sensory, pH, microorganism, color, protein, and lipid oxidation ...
Lamei CHEN   +4 more
doaj   +1 more source

Large Language Model‐Based Chatbots in Higher Education

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
The use of large language models (LLMs) in higher education can facilitate personalized learning experiences, advance asynchronized learning, and support instructors, students, and researchers across diverse fields. The development of regulations and guidelines that address ethical and legal issues is essential to ensure safe and responsible adaptation
Defne Yigci   +4 more
wiley   +1 more source

Sikkimese yak: Characterization of a yak population in Peril

open access: yesThe Indian Journal of Animal Sciences
Yak population of Sikkim currently stands at 5,219 heads and is reared by the nomadic pastoral community called Dokpa. This population has not been characterized till date and further, if not conserved, this valuable germplasm may become unavailable for utilization.
R A K AGGARWAL   +4 more
openaire   +2 more sources

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