Publications by authors named "Ren Peng"

The introduction of defects in metal-organic frameworks (MOFs) is an effective method to improve the performance of MOFs in many applications, but it also compromises the mechanical properties of MOFs. Thus, a comprehensive understanding of the mechanical properties of defective MOFs becomes important for the defect engineering in MOFs. Herein, using the in situ compression tests, we directly observe very different mechanical responses in HKUST-1 MOFs with various defect concentrations.

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It is now understood that brain metastases do not occur randomly but have distinct spatial patterns depending on the origin of the cancer. According to the "seed and soil" hypothesis, the final colonization of metastatic cells is the result of their adaptation to the altered environment. To investigate the most favorable microenvironment for brain metastasis, we analyzed neuroimaging data from 177 patients with breast cancer brain metastasis and 548 patients with lung cancer brain metastasis to create a replicable probabilistic map of metastatic locations.

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Identification of disulfide-peptide-bond-containing glutathione (GSSG) over the monosulfide form (GSH) remains a very challenging task because of their identical chemical properties. Although GSH detection has been well documented, selective detection of GSSG has rarely been reported. Here, four cationic Ag-based coordination polymers (Ag CPs) were synthesized using newly synthesized monotriazole linker 3-amino-5-(4-1,2,4-triazol-4-yl)pyridine to selectively screen GSSG over GSH.

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Climatic warming can shift community composition driven by the colonization-extinction dynamics of species with different thermal preferences; but simultaneously, habitat fragmentation can mediate species' responses to warming. As this potential interactive effect has proven difficult to test empirically, we collected data on birds over 10 years of climate warming in a reservoir subtropical island system that was formed 65 years ago. We investigated how the mechanisms underlying climate-driven directional change in community composition were mediated by habitat fragmentation.

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Lactate is recognized as a principal energy substrate for male germ cells. Lactate dehydrogenases (LDHs) catalyze the reversible conversion between pyruvate and lactate, which are required for male fertility. Among them, lactate dehydrogenase A-like 6B (Ldhal6b) has been identified as a testis-specific LDH gene.

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The mortality rate of oesophageal squamous cell carcinoma (ESCC) remains high, and conventional TNM systems cannot accurately predict its prognosis, thus necessitating a predictive model. In this study, a 17-gene prognosis-related gene signature (PRS) predictive model was constructed using the random survival forest algorithm as the optimal algorithm among 99 machine-learning algorithm combinations based on data from 260 patients obtained from TCGA and GEO. The PRS model consistently outperformed other clinicopathological features and previously published signatures with superior prognostic accuracy, as evidenced by the receiver operating characteristic curve, C-index and decision curve analysis in both training and validation cohorts.

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Article Synopsis
  • Infrared Nd:YVO pulsed lasers are increasingly used in industrial processes, requiring effective control of the "match-head" effect caused by the first giant pulse in solid-state Q-switched lasers.
  • Adjusting the slope parameters of the RF modulation can minimize abnormal horizontally polarized emissions that may negatively impact production and pose safety risks.
  • Experimental results indicate that increasing the slope duration can suppress both horizontal and vertical giant pulses, with optimal suppression of horizontally polarized light achieved with a duration greater than 13.7 ms, making this method more efficient than using a polarizer.
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Biological control is an effective and sustainable method of integrated pest management. Microplitis manilae (Hymenoptera: Braconidae) is a common internal parasitoid wasp of the order Lepidoptera. To determine a suitable host species for the reproduction of parasitoids, it is essential to assess host suitability and parasitic potential of the parasitized pests.

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  • * Researchers used qRT-PCR to measure levels of Hsa_circ_0007718, miR-1299, and PSMC2 in CRC cells and patient samples to understand their interactions.
  • * The study found high levels of Hsa_circ_0007718 in CRC, and its suppression reduced cancer cell growth and movement, showing that it helps promote cancer by inhibiting miR-1299 and increasing PSMC2 expression.
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  • The study investigates how different areas of the hippocampus use sleep oscillations during NREM sleep to aid memory consolidation, particularly focusing on delta waves and spindle activity.
  • Using data from 25 epilepsy patients with intracranial recordings, it reveals that various hippocampal subfields (DG/CA3, CA1, and SUB) display significant delta and spindle power during NREM sleep and that these areas interact in complex ways.
  • The findings indicate that while the DG/CA3 region shows strong coupling between different oscillations, CA1 and SUB demonstrate more precise coordination, ultimately enhancing synaptic plasticity and information transfer during sleep.
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  • - Liver ultrasound is popular for diagnosing liver diseases because it’s non-invasive, doesn’t use radiation, and provides real-time images; accurate liver segmentation in these images is crucial for quick diagnoses.
  • - The paper introduces BACANet, a deep learning algorithm that improves liver ultrasound segmentation through a lightweight network, a convolutional attention mechanism, and a selective large kernel convolution module for better boundary feature extraction.
  • - BACANet showed impressive results in experiments, achieving high accuracy scores (DSC and IOU) on both public and private datasets, while processing images quickly at around 0.32 seconds each on a CPU.
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To evaluate the efficacy and postoperative complications of endoscopic thoracoscopic and laparoscopic radical esophagectomy compared to open surgery in esophageal cancer treatment. This retrospective study included 103 esophageal cancer patients admitted from August 2018 to March 2022, divided into observation (endoscopic surgery) and control (open surgery) groups. We compared intraoperative parameters, postoperative outcomes, immune function, and one-year overall survival (OS).

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In this article, a miniaturized and highly stable frequency-selective rasorber (FSR) incorporating an embedded transmission window is designed. This FSR consists of a lossy layer loaded with resistors, an air layer, and a bandpass layer. The lossy layer is provided with a rectangular, square ring structure loaded with four 180 Ω resistors and four quadrilateral metal plates.

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This study aims to investigate the dynamic changes in daily step counts under different housing systems and further explore the effects of housing system on the body conformation, carcass traits, meat quality, and serum biochemical parameters of a Chinese indigenous chicken breed. At 60 d of age, 300 Jiuyuan Black male chickens with similar body weights in each housing system were further raised until the age of 150 d. At 90, 120, and 150 d of age, in both cage-reared and free-range systems, the top 20 chickens with the highest step counts measured using pedometers and the bottom 20 chickens with the lowest step counts were designated as the cage high-steps group (CHS), the cage low-steps group (CLS), the free-range high-steps group (FHS), and the free-range low-steps group (FLS), respectively.

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The degenerative process of follicular atresia in hens naturally commences in granulosa cells, significantly impacting laying hens' reproductive performance. Past studies suggested that granulosa cell autophagy and apoptosis work together to cause follicular atresia. Recent research indicates that miRNA regulates granulosa autophagy and apoptosis, which contributes to the development of follicular atresia.

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Non-benzenoid polycyclic aromatic hydrocarbons (PAHs) have received considerable attention owing to their distinctive optical and electrical properties. Nevertheless, the synthesis and optoelectronic application of non-benzenoid PAHs remain challenging. Herein, we present a facile synthesis of linear non-benzenoid PAH with an armchair edge, , by fusing chrysene with two azulene units.

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Backgrounds: Currently, family with sequence similarity 65 member A (FAM65A) is reported as a pivotal regulator in various cancers. However, the effect of FAM65A in lung squamous cell carcinoma (LSCC) is still unclear, the prime objective of this research is to explore the role of FAM65A in LSCC.

Methods: Gene expression data and correlated clinical information were downloaded from the public database and the expression of FAM65A was detected.

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The transformation of CO into value-added products from an impure CO stream, such as flue gas or exhaust gas, directly contributes to the principle of carbon capture and utilization (CCU). Thus, we have developed a robust iron-based heterogeneous photocatalyst that can convert the exhaust gas from the car into CO with an exceptional production rate of 145 μmol g h. We characterized this photocatalyst by PXRD, XPS, ssNMR, EXAFS, XANES, HR-TEM, and further provided mechanistic experiments, and multi-scale/level computational studies.

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The surging popularity of virtual reality (VR) technology raises concerns about VR-induced motion sickness, linked to discomfort and nausea in simulated environments. Our method involves in-depth analysis of EEG data and user feedback to train a sophisticated deep learning model, utilizing an enhanced GRU network for identifying motion sickness patterns. Following comprehensive data pre-processing and feature engineering to ensure input accuracy, a deep learning model is trained using supervised and unsupervised techniques for classifying and predicting motion sickness severity.

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Gliomas are primary brain tumors and are among the most malignant types. Adult-type diffuse gliomas can be classified based on their histological and molecular signatures as IDH-wildtype glioblastoma, IDH-mutant astrocytoma, and IDH-mutant and 1p/19q-codeleted oligodendroglioma. Recent studies have shown that each subtype of glioma has its own specific distribution pattern.

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In this paper, a dual-passband frequency selective surface (FSS) with high angular stability and polarization insensitivity is proposed. The unit structure consists of a circular aperture, two annular apertures and four cross apertures. The designed FSS can achieve a double-passband at the interested frequencies of 8.

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Background And Purpose: GLP-1 receptor agonists are clinically utilized for type 2 diabetes and obesity. In vitro and in vivo preclinical studies were performed to assess the druggability of a novel small molecule GLP-1 receptor biased agonist SAL0112.

Experimental Approach: The HTRF assay, FLIPR assay, TR-FRET assay, and PathHunter assay were utilized for in vitro studies.

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Article Synopsis
  • Variability in microbial residues in soil aggregates is crucial for soil nutrition and sustainability, and the impact of microbial fertilizers on these residues is not well-studied.
  • A three-year field experiment found that while microbial residual carbon decreased slightly with microbial fertilizers, it increased marginally with organic fertilizers; using both types of fertilizers together significantly boosted carbon accumulation.
  • The study indicates that fungal residues play a key role in enhancing soil structure and carbon sequestration, and highlights the need to understand differing effects of microbial and organic fertilizers on microbial residue carbon in bamboo forest soils.
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Background: This study clarified the expression of cicrTLK1 in non-small cell lung cancer (NSCLC) and explored its role in cancer growth, metastasis and immune escape, providing a potential molecular target and theoretical basis for NSCLC treatment.

Methods: The expression levels of circTLK1, miR-876-3p and SRSF7 were determined by RT-qPCR assay. The localization of circTLK1 in NSCLC cells was determined by FISH assay.

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Major depressive disorder (MDD) is a global health burden characterized by persistent low mood, deprivation of pleasure, recurrent thoughts of death, and physical and cognitive deficits. The current understanding of the pathophysiology of MDD is lacking, resulting in few rapid and effective antidepressant therapies. Recent studies have pointed to the sigma-1 (σ-1) receptor as a potential rapid antidepressant target; σ-1 agonists have shown promise in a variety of preclinical depression models.

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