Publications by authors named "Ma J"

Unmanned aerial vehicle (UAV) assisted wireless communications have been expected to play a vital role in the next generation of wireless networks. UAVs can serve as either repeaters or data collectors within the communication link, thereby potentially augmenting the efficacy of communication systems. Despite their promise, the channel analysis and modeling specific to terahertz (THz) wireless channels leveraging UAVs remain under-explored.

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  • * The research analyzed how different levels of fog concentration affected transmission quality, including path loss, signal quality, and error rates, revealing that higher fog concentration hindered VLC performance more than DUVLC.
  • * The findings demonstrated that a combined VLC and DUVLC system could effectively transmit information in foggy conditions, suggesting its potential use in various complex outdoor scenarios where fog might impact communication.
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Considering the obvious application value in the field of minimally invasive and non-destructive clinical healthcare, we explore the challenge of wide-field imaging and recognition through cascaded complex scattering media, a topic that has been less researched, by realizing wide-field imaging and pathological screening through multimode fibers (MMF) and turbid media. To address the challenge of extracting features from chaotic and globally correlated speckles formed by transmitting images through cascaded complex scattering media, we establish a deep learning approach based on SMixerNet. By efficiently using the parameter-free matrix transposition, SMixerNet achieves a broad receptive field with less inductive bias through concise multi-layer perceptron (MLP).

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  • A new flexible wearable sensor for monitoring human breath is developed using a Fabry-Perot structure, which involves fusing optical fiber with a capillary and coating it with agar film that reacts to humidity changes.
  • The sensor measures relative humidity (RH) with a sensitivity of 0.95 nm/%RH in the range of 60%-85% and has varying temperature sensitivity, averaging 0.34 nm/°C between 30°C and 55°C.
  • It responds quickly to breath with a response time of 0.88 s and can differentiate between normal and deep breathing, marking a significant advancement in stable and reliable breath monitoring technology.
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This strategic plan summarizes the major accomplishments achieved in the last quinquennial by the soybean [Glycine max (L.) Merr.] genetics and genomics research community and outlines key priorities for the next 5 years (2024-2028).

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  • Somatic variations in 'Fuji' apple can lead to beneficial bud sports, which are key for breeding new apple traits.
  • A complete genome assembly of 'Fuji' has revealed multiple independent origins of spur-type and early-maturing traits among its clones.
  • The study identifies specific genetic changes, such as a deletion in the MdTCP11 gene, that influence growth characteristics and offer insight for future apple breeding efforts.
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  • This study aimed to analyze the prognosis and influencing factors for patients with non-gastric gastrointestinal stromal tumors (GISTs) classified as low risk for recurrence, gathering data from 1,571 patients across 18 medical centers in China from 2000 to 2023.
  • Among the participants, 23.6% were at very low risk and 76.4% at low risk, with a median follow-up of 63 months showing high overall survival (99.5% at 5 years) and disease-free survival rates (96.3% at 5 years).
  • The findings highlighted that 3.8% of patients experienced disease recurrence, mostly within the low-risk group, with variances
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Two undescribed diterpenoids (1-2) and three lignans (3a/3b, 4a), together with sixteen known compounds (4b, 5-9, 10a/10b-14a/14b) were obtained from the stems of Tripterygium wilfordii (T. wilfordii). The structures of these new compounds were elucidated by detailed spectroscopic analyses, and their absolute configurations were estabished by ECD calculations.

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Background: The rapid development of neurosurgical techniques, such as awake craniotomy, has increased opportunities to explore the mysteries of the brain. This is crucial for deepening our understanding of motor control and imagination processes, especially in developing brain-computer interface (BCI) technologies and improving neurorehabilitation strategies for neurological disorders.

Objective: This study aimed to analyze brain activity patterns in patients undergoing awake craniotomy during actual movements and motor imagery, mainly focusing on the motor control processes of the bilateral limbs.

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The escalating threat of healthcare-associated infections highlights the urgent need for biocompatible antibacterial materials that effectively combat drug-resistant pathogens. In this study, we present a novel fabrication method for triple-helical recombinant collagen (THRC)-silver hybrid nanofibers, specifically designed for anti-methicillin-resistant(MRSA) applications. Utilizing a silver-mediated crosslinking strategy, we harness a low-power 38 W lamp to enable silver ions (Ag) to mediate crosslinking across various proteins.

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Aquaculture pond sediments act as hotspots for methane (CH) emissions; however, knowledge gaps on the regulation of microorganisms hinder our further understanding of methane dynamics in aquaculture pond sediment. Using field sampling and molecular analysis, we examined CH fluxes, the methanogenic community composition, and their interaction with methanotrophs to comprehensively understand the methane cycling in sediments of aquaculture ponds in northern China. Compared with a fishing pond without feed inputs, the abundances of methanogens mcrA and methanotrophs pmoA genes increased significantly in aquaculture ponds sediments.

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Glioblastoma multiforme (GBM) is the most common and aggressive malignant brain tumor, with a poor prognosis. Temozolomide (TMZ) represents the standard chemotherapy for GBM but has limited efficacy due to poor targeting and a hypoxic tumor microenvironment (TME). To address these challenges, we developed a dual-gas-releasing, cancer-cell-membrane-camouflaged nanoparticle to deliver TMZ.

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4'-Phosphopantetheinyl transferases (PPTases) play important roles in the posttranslational modifications of bacterial carrier proteins, which are involved in various metabolic pathways. Here, we found that and encoded a functional AcpS-type and Sfp-type PPTase, respectively, in GMI1000, and both are capable of modifying AcpP1, AcpP2, AcpP3, and AcpP5 proteins. is located on the megaplasmid, which does not affect strain growth and fatty acid synthesis but significantly contributes to the virulence of and preferentially participates in secondary metabolism.

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The rhizosphere bacterial community of plants has a crucial effect on healthy plant growth, and each rhizosphere has a specific microbial community. Camellia sinensis cv. Shifocui (C.

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Wildfire and stubble burning release substantial amounts of black carbon (BC) into natural environments that experience frequent redox oscillations, such as wetlands and farmlands. Here, we report that redox oscillations can effectively drive ROS production from BC. Following sequential microbial reduction and air exposure, 6.

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  • Rare cell populations are hard to study with traditional single-cell RNA sequencing (scRNA-seq) because they often require pooling from different samples, which loses valuable origin and phenotype information.
  • To tackle this issue, researchers have developed a technique called sample multiplexing, using unique sequence barcodes for each sample to analyze them simultaneously without losing data quality.
  • The study focuses on mouse retinal ganglion cells, utilizing this multiplexing approach to improve accuracy in tracking cell types and gene expression variability, and also helps identify multiplets in samples that lack specific labeling.
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  • * A retrospective analysis over three years found that 21.7% of the 1003 twin pregnancies had GDM, with GDM linked to maternal factors like age and BMI, and resulting in poorer neonatal outcomes, such as increased risk of small for gestational age (SGA) and more NICU admissions.
  • * The findings suggest that while using singleton GDM criteria in twin pregnancies may help reduce maternal risks, it may also lead to higher complications for the babies, emphasizing the need for tailored management in this group.
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Aneuploid epithelial cells are common in breast cancer; however, their presence in normal breast tissues is not well understood. To address this question, we applied single-cell DNA sequencing to profile copy number alterations in 83,206 epithelial cells from the breast tissues of 49 healthy women, and we applied single-cell DNA and assay for transposase-accessible chromatin sequencing co-assays to the samples of 19 women. Our data show that all women harboured rare aneuploid epithelial cells (median 3.

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Local progression of primary skull base chordoma (PSBC) is a sign of treatment failure. Predicting the postoperative progression of PSBC can aid in the development of individualized treatment plans to improve patients' progression-free survival (PFS) after surgery. This study aimed to develop a multiparametric MRI-based fusion radiomic model (FRM) and clinicoradiomic model (CRM) via radiomic and clinical analysis and to explore their validity in predicting postoperative progression in PSBC patients before surgery.

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Studies of laminopathy-based progeria offer insights into aging-associated diseases and highlight the role of LMNA in chromatin organization. Mandibuloacral dysplasia type A (MAD) is a largely unexplored form of atypical progeria that lacks lamin A post-translational processing defects. Using iPSCs derived from a male MAD patient carrying homozygous LMNA p.

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The characteristics and performance of chitosan-based colon delivery systems are significantly influenced by the method of preparation. Insect chitosan-melanin complex (CMC) may offer superior attributes over traditional shrimp and crab chitosan (CS) for colon-targeted administration. This study used dung beetle CMC as the carrier matrix and comprehensively examined the impact of various crosslinking techniques on the colonic drug delivery efficacy of microspheres, encompassing drug loading, swelling, drug release behavior, adhesion, enzymatic degradation, and absorption enhancement.

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Minimal change disease (MCD) is a universal primary glomerular disease contributing to nephrotic syndrome. Lon peptidase 1 (LONP1) has been suggested to protect podocytes from damage during the progression of MCD. Accordingly, our research further explored the specific mechanisms of LONP1.

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Per- and polyfluoroalkyl substances (PFAS) are widespread, highly persistent, and bio-accumulative compounds that are increasingly found in the sediments of aquatic systems. Given this accumulation and concerns regarding the environmental impacts of PFAS, their influence on sedimentary bacterial communities remains inadequately studied. Here, we investigated the concentrations of 17 PFAS in sediments from six urban lakes in Nanjing, China, and assessed their effects on the diversity, composition, potential interactions, and assembly mechanisms of sedimentary bacterial communities.

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  • Crustaceans like the Chinese mitten crab (Eriocheir sinensis) have evolved antioxidant defenses to cope with low oxygen (hypoxia) situations in their environment.
  • The study exposed juvenile crabs to hypoxia, finding significant increases in key antioxidant components in their gills, highlighting their physiological response to stress.
  • Transcriptomic analysis showed thousands of differentially expressed genes related to various metabolic pathways, suggesting complex regulatory mechanisms that help the crabs adapt to low oxygen conditions.
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