Results 21 to 30 of about 8,291 (120)

Real-Time Precise Orbit Determination of Low Earth Orbit Satellites Based on GPS and BDS-3 PPP B2b Service

Remote Sensing
This study investigates and verifies the feasibility of the precise point positioning (PPP)-B2b enhanced real-time (RT) precise orbit determination (POD) of low Earth orbit (LEO) satellites.
Yali Shi, Tianhe Xu, Min Li, Kai Wei, Shuai Wang, Dixing Wang   +5 more
doaj   +1 more source

Regional Real-Time between-Satellite Single-Differenced Ionospheric Model Establishing by Multi-GNSS Single-Frequency Observations: Performance Evaluation and PPP Augmentation

Remote Sensing
The multi-global navigation satellite system (GNSS) undifferenced and uncombined precise point positioning (UU-PPP), as a high-precision ionospheric observables extraction technology superior to the traditional carrier-to-code leveling (CCL) method, has ...
Ahao Wang, Yize Zhang, Junping Chen, Xuexi Liu, Hu Wang   +4 more
doaj   +1 more source

Platelet-Rich Fibrin Can Neutralize Hydrogen Peroxide-Induced Cell Death in Gingival Fibroblasts

Antioxidants, 2020
Hydrogen peroxide is a damage signal at sites of chronic inflammation. The question arises whether platelet-rich fibrin (PRF), platelet-poor plasma (PPP), and the buffy coat can neutralize hydrogen peroxide toxicity and thereby counteract local oxidative
Zahra Kargarpour, Jila Nasirzade, Francesca Di Summa, Layla Panahipour, Richard J. Miron, Reinhard Gruber   +5 more
doaj   +1 more source

Liquid PRF Reduces the Inflammatory Response and Osteoclastogenesis in Murine Macrophages

Frontiers in Immunology, 2021
Macrophage activation and osteoclastogenesis are hallmarks of inflammatory osteolysis and may be targeted by the local application of liquid platelet-rich fibrin (PRF).
Zahra Kargarpour, Jila Nasirzade, Layla Panahipour, Richard J. Miron, Reinhard Gruber, Reinhard Gruber   +5 more
doaj   +1 more source

Associations of maternal and placental extracellular vesicle miRNA with preeclampsia

Frontiers in Cell and Developmental Biology, 2023
Introduction: Gestational vascular complications (GVCs), including gestational hypertension and preeclampsia, are leading causes of maternal morbidity and mortality.
Anat Aharon, Anat Aharon, Anat Aharon, Anat Aharon, Annie Rebibo-Sabbah, Rawan Sayed Ahmad, Ayelet Dangot, Tali Hana Bar-Lev, Benjamin Brenner, Benjamin Brenner, Adi Halberthal Cohen, Chen Ben David, Zeev Weiner, Zeev Weiner, Ido Solt, Ido Solt   +15 more
doaj   +1 more source

Improved Performance of RT-PPP During Communication Outages Based on Position Constraints and Stochastic Model Optimization

Remote Sensing
In the practical application of Real-Time Precise Point Positioning (RT-PPP), the outages in receiving spatial state representation (SSR) information due to communication anomalies can result in a decrease or even divergence of the positioning accuracy ...
Xiaosong Liu, Lin Zhao, Fuxin Yang, Jie Zhang, Jinjian Shi, Chuanlei Zheng   +5 more
doaj   +1 more source

Predicting disease progression from the rate of bodyweight change in nasopharyngeal carcinoma patient during radiotherapy

Scientific Reports
Bodyweight loss is a common occurrence in Nasopharyngeal Carcinoma (NPC) patients during Radiotherapy (RT). Previous studies found that the prognostic value of percentage weight loss (pWL) during RT is not credible.
Jiachen Sun, Sai kit Edmond Lam, Xinzhi Teng, Jiang Zhang, Francis Kar-ho Lee, Celia Wai-yi Yip, James Chung-hang Chow, Victor Ho-fun Lee, Ying Sun, Jing Cai   +9 more
doaj   +1 more source

Assessment of Affordable Real-Time PPP Solutions for Transportation Applications

Algorithms
With the availability of multi-frequency, multi-constellation global navigation satellite system (GNSS) modules, precise transportation applications have become attainable.
Mohamed Abdelazeem, Amgad Abazeed, Abdulmajeed Alsultan, Amr M. Wahaballa   +3 more
doaj   +1 more source

Dynamics of λ-cyhalothrin disappearance and expression of selected P450 genes in bees depending on the ambient temperature

Open Chemistry, 2021
Temperature has a significant influence on the action of pyrethroids, and their effect increases with decreasing ambient temperature. Using gas chromatography, we assessed the degradation rate of λ-cyhalothrin, active ingredients (AI) of Karate Zeon 050 ...
Piechowicz Bartosz, Kobielska Marika, Koziorowska Anna, Podbielska Magdalena, Szpyrka Ewa, Pieniążek Marcin, Potocki Leszek   +6 more
doaj   +1 more source

Low-Cost IMU and Odometer Tightly Augmented PPP-B2b-Based Inter-Satellite Differenced PPP in Urban Environments

Remote Sensing, 2022
Since 23 June 2020, BDS-3 has been entirely operated and obtained the ability of global PNT (Positioning, Navigation, and Timing) services. Afterward, real-time Precise Point Positioning (PPP) service is available in China’s surrounding areas via BDS-3 ...
Yu Min, Zhouzheng Gao, Jie Lv, Ruohua Lan, Qiaozhuang Xu, Cheng Yang   +5 more
doaj   +1 more source