Results 71 to 80 of about 9,915 (201)

A Priori-Based Subarray Selection Algorithm for DOA Estimation

Sensors, 2020
A finer direction-of-arrival (DOA) estimation result needs a large and dense array; it may, however, encounter the mutual coupling effect, which degrades the performance of DOA estimation.
Linghao Zeng, Guanghua Zhang, Chongzhao Han   +2 more
doaj   +1 more source

Direction-of-Arrival Estimation Based on Joint Sparsity

Sensors, 2011
We present a DOA estimation algorithm, called Joint-Sparse DOA to address the problem of Direction-of-Arrival (DOA) estimation using sensor arrays. Firstly, DOA estimation is cast as the joint-sparse recovery problem.
Zhitao Huang, Yiyu Zhou, Junhua Wang
doaj   +1 more source

D‐amino acid oxidase as a chemogenetic tool for spatiotemporally controlled hydrogen peroxide production: The oxygen connection

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose D‐amino acid oxidase (DAO) has been developed as a chemogenetic tool, to precisely manipulate redox levels in tissues and cells by generating H2O2 in the presence of D‐amino acids. The enzyme's significant oxygen consumption during H2O2 production may influence cellular oxygen levels.
Wiebke Maurer, Anke Zieseniss, Vamsi Priya Vikram, Yamin Chen, Laura Bauer, Annette Hillemann, Peter Rehling, Maithily S. Nanadikar, Diane de Zélicourt, Vartan Kurtcuoglu, Dörthe M. Katschinski   +10 more
wiley   +1 more source

Research on DOA estimation algorithm for coherent signal under low signal to noise ratio

Dianzi Jishu Yingyong, 2018
In order to solve the problem of low coherent signal DOA estimation accuracy and low resolution in low signal to noise ratio, this paper proposes a DOA estimation algorithm for coherent signal under low SNR.
Ren Quanhui, Chen Xiangcheng
doaj   +1 more source

Astrocytic connexin43 phosphorylation contributes to seizure susceptibility after mild traumatic brain injury

The FEBS Journal, EarlyView.
Astrocytic gap junctions formed by connexin43 (Cx43) help maintain brain homeostasis. After mild traumatic brain injury (TBI), total cortical Cx43 increases and redistributes toward a soluble, non‐junctional pool with elevated hemichannel activity and increased phosphorylation at serine 368 (pCx43S368).
Carmen Muñoz‐Ballester, Owen Leitzel, Samantha Golf, Chelsea M. Phillips, Michael J. Zeitz, Rahul Pandit, Elizabeth Wash, Jenna V. Donohue, Elizabeth A. Istre, James W. Smyth, Samy Lamouille, Stefanie Robel   +11 more
wiley   +1 more source

DOA Estimation of Uncorrelated, Partly Correlated and Coherent Signals Using Alternating Oblique Projection [PDF]

Radioengineering, 2017
The problem of direction-of-arrival (DOA) estimation is important in array signal processing. To estimate the DOAs of uncorrelated, partly correlated and coherent signals, a new iterative DOA estimation algorithm, named AOP-DOA, is proposed by using ...
H. Hou, X. Mao
doaj  

Effects of GLP‐1 agonists on the gut microbiota in type 2 diabetes mellitus: a systematic review

The FEBS Journal, EarlyView.
This systematic review evaluated 17 studies (12 preclinical and five clinical) on GLP‐1 receptor agonists in type 2 diabetes, demonstrating effects on the gut microbiota and metabolic improvement. The studies showed an increase in Bacteroidetes, Lactobacillus, and Akkermansia, and a reduction in Firmicutes.
Ranicleide Santos Dantas, Lucas Vinícius Souza Santos, André Gustavo Carvalho de Oliveira, Marina dos Santos Barreto, Deise Maria Rego Rodrigues Silva, Pedro Henrique Macedo Moura, Eloia Emanuelly Dias Silva, Ronaldy Santana Santos, Lucas Alves da Mota Santana, Rajiv Gandhi Gopalsamy, Adriana Gibara Guimarães, Lysandro Pinto Borges   +11 more
wiley   +1 more source

Alkaloids extracted from Dendrobium officinale grown in diverse environments exhibited robust antioxidative and antiaging activity

Journal of Future Foods
Due to the increase in aging populations and the prevalence of aging-associated diseases, there is a growing interest in finding therapeutic interventions. Antioxidants play a vital role in mitigating the adverse conditions associated with aging. In this
Yichen Liu, Arome Solomon Odiba, Qi Yu, Jin Xie, Nkwachukwu Oziamara Okoro, Guiyan Liao, Xinchen Zhu, Bin He, Cheng Jin, Wenxia Fang, Bin Wang   +10 more
doaj   +1 more source

Political Partisanship and State‐Level Bank Efficiency

Financial Review, EarlyView.
ABSTRACT We examine the relationship between political partisanship and commercial bank efficiency in the United States from 1972 to 2020, assessing the persistent influence of political affiliations at the state and District of Columbia levels. Bank efficiency scores are estimated using a double‐bootstrap approach, and the analysis is conducted within
Jeremy Eng‐Tuck Cheah, Tapas Mishra, Sofia Johan, Thao Ngoc Nguyen   +3 more
wiley   +1 more source

Introducing OBEClust: A Pan‐European Initiative to Harmonize Obesity Prevention Research and Strengthen Translation Into Policy

Obesity Reviews, EarlyView.
ABSTRACT Obesity remains one of the most pressing public health challenges in Europe, with substantial health, social, and economic consequences. Despite extensive research and numerous national strategies, obesity prevention efforts remain fragmented across countries, limiting comparability, scalability, and policy impact.
Maria Kafyra, Pelin Alpay, Anabela Marisa Azul, Fernando Fernández‐Aranda, Sarah Forberger, Michael Georgoulis, Ioanna Panagiota Kalafati, Meropi D. Kontogianni, Thao Lam, Eirini Marouli, Paulo Matafome, Stavroula Mougiakakou, Barbara Pakula, Julio Álvarez Pitti, João Ramalho‐Santos, Katrin Scionti, Andreia Silva, Vasiliki Vavouraki, Susann Weihrauch‐Blüher, Mariusz R. Wieckowski, Manuel Tena‐Sempere, Afshan N. Malik, Dimitrios‐Dionyssios Koutsouris, Jeroen Lakerveld, Karl‐Heinz Wagner, Itziar Tueros, Philippe Froguel, Torsten Bohn, Paulo J. Oliveira, George V. Dedoussis, on behalf of OBEClust   +30 more
wiley   +1 more source