Results 21 to 30 of about 8,578,817 (287)

State of the art and applications in nanostructured biocatalysis

Biotechnology & Biotechnological Equipment, 2022
Enzymes have been widely studied for their excellent efficiency, selectivity and environmentally benign nature. However, the development of their biocatalytic applications is severely limited by the lack of stability and reusability.
Fengfan Liu, Zhihao Shi, Weike Su, Jiequn Wu   +3 more
doaj   +1 more source

Encaging palladium(0) in layered double hydroxide: A sustainable catalyst for solvent-free and ligand-free Heck reaction in a ball mill

Beilstein Journal of Organic Chemistry, 2017
In this paper, the synthesis of a cheap, reusable and ligand-free Pd catalyst supported on MgAl layered double hydroxides (Pd/MgAl-LDHs) by co-precipitation and reduction methods is described. The catalyst was used in Heck reactions under high-speed ball
Wei Shi, Jingbo Yu, Zhijiang Jiang, Qiaoling Shao, Weike Su   +4 more
doaj   +1 more source

Tibetan medicine salidroside improves host anti-mycobacterial response by boosting inflammatory cytokine production in zebrafish

Frontiers in Pharmacology, 2022
The treatment for tuberculosis (TB), especially multidrug-resistant TB (MDR-TB), has a prolonged cycle which can last up to a year. This is partially due to the lack of effective therapies.
Shumei He, Hongyan Fan, Hongyan Fan, Bin Sun, Meipan Yang, Hongxu Liu, Hongxu Liu, Jianwei Yang, Jianwei Yang, Jianxin Liu, Jianxin Liu, Sizhu Luo, Sizhu Luo, Zihan Chen, Zihan Chen, Jing Zhou, Jing Zhou, Lu Xia, Shulin Zhang, Shulin Zhang, Bo Yan   +20 more
doaj   +1 more source

Solar flare forecasting using morphological properties of sunspot groups

Journal of Space Weather and Space Climate, 2019
We describe a new tool developed for solar flare forecasting on the base of some sunspot group properties. Assuming that the flare frequency follows the Poisson statistics, this tool uses a database containing the morphological characteristics of the ...
Falco Mariachiara, Costa Pierfrancesco, Romano Paolo   +2 more
doaj   +1 more source

Large Photospheric Doppler Shift in Solar Active Region 12673. I. Field-aligned Flows

The Astrophysical Journal, 2023
Delta ( δ ) sunspots sometimes host fast photospheric flows along the central magnetic polarity inversion line (PIL). Here we study the strong Doppler shift signature in the central penumbral light bridge of solar active region NOAA 12673.
Jiayi Liu, Xudong Sun, Peter W. Schuck, Sarah A. Jaeggli, Brian T. Welsch, C. Quintero Noda   +5 more
doaj   +1 more source

Statistical Analysis of Magnetic Patches in Solar Active Regions using the Complex Network Method [PDF]

Iranian Journal of Astronomy and Astrophysics
Identifying solar active regions (ARs), which consist of one or more pairs of magnetic patches with opposite polarities, is essential due to their significant role in dynamic solar atmospheric phenomena such as solar flares and coronal mass ejections. In
Zahra Tajik, Hasan Rezaei, Mehdi Simiari, Hossien Safari   +3 more
doaj   +1 more source

In silico testing of C9H12ClNO2 and C6H5Cl2NO as derivatives of acetaminophen using molecular docking method

Notulae Scientia Biologicae
Paracetamol, a commonly used analgesic and antipyretic medication, is well-known for its ability to relieve pain and reduce temperature. However, there is a constant push to improve its therapeutic efficacy, especially towards increasing its oral ...
Juan LORELL, Kathy IVANA, Joselyn P.W. TANOTO, Michael MICHAEL, Sarah JESCIKA, Nicolaas R.P. GAUTAMA, Olivia TJOA, Keisha ALINA, Arli A. PARIKESIT, Fandi SUTANTO   +9 more
doaj   +1 more source

Confinedness of an X3.1-class Solar Flare Occurred in NOAA 12192: Analysis from Multi-instrument Observations

The Astrophysical Journal, 2023
The nonassociation of coronal mass ejections with high energetic flares is sparse. For this reason, the magnetic conditions required for the confinedness of major flares is a topic of active research.
N. Vasantharaju, F. Zuccarello, F. Ferrente, S. L. Guglielmino   +3 more
doaj   +1 more source

Quantum-Well-Embedded InGaN Quantum Dot Vertical-Cavity Surface-Emitting Laser and Its Photoelectric Performance

Photonics
An electrically injected vertical-cavity surface-emitting laser (VCSEL) with quantum-well-embedded InGaN quantum dots (QDs) as the active region was designed.
Zinan Hua, Hailiang Dong, Zhigang Jia, Wei Jia, Lin Shang, Bingshe Xu   +5 more
doaj   +1 more source

Biological Active Region Defined by Fragment-based Molecular Theory [PDF]

Computational chemistry studies using the QM/MM approach have been conducted to explain and predict protein functions. However, the active regions responsible for those functions often need to be clarified.
Hirotoshi, Mori, Nichika, Ozawa, Nahoko, Kuroki   +2 more
core   +1 more source