Publications by authors named "Si-qi Zhao"
Background: The rice stem borer, Chilo suppressalis Walker (Lepidoptera: Crambidae), is a damaging pest of rice worldwide. Following the evolution of C. suppressalis resistance to diamide and abamectin insecticides, emamectin benzoate (EB) became a key insecticide for the control of this species in China.
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- The rice stem borer is developing resistance to key insecticides, posing a challenge for its control and management in agriculture.
- Research on 126 populations from China showed moderate to high resistance to four main insecticides, revealing genetic mutations linked to this resistance.
- Understanding these resistance mechanisms, including both target-site mutations and nontarget mechanisms like enzyme overexpression, can aid in developing effective and sustainable pest management strategies.
Article Synopsis
- A study was conducted to assess the prevalence of subthreshold depression among Chinese college students, revealing a significant rate of approximately 39.7% among 8,934 participants.
- Factors such as being female, having chronic illnesses, experiencing financial debt, facing challenges in family communication, and feeling high perceived pressure were linked to a higher risk of developing subthreshold depression.
- The research suggests that strong family communication, better perceived social support, and higher self-efficacy may serve as protective factors against subthreshold depression, highlighting the importance of timely screening for at-risk students.
Article Synopsis
- - DMSC (dinuclear metal synergistic catalysis) is a promising method to boost the efficiency of photocatalytic CO reduction, but designing effective dinuclear metal complexes has been challenging due to a lack of understanding of their microenvironment's impact on catalytic activity.
- - A new dinuclear cobalt complex with a planar structure has been developed, demonstrating exceptional catalytic performance for converting CO, achieving turnover numbers (TON) and turnover frequencies (TOF) that are significantly higher than those of a corresponding single-metal complex.
- - The enhanced activity of this dinuclear cobalt complex is attributed to an indirect DMSC effect between the two cobalt ions, facilitating an efficient two-electron transfer process and improved mass transfer, all supported by its unique planar design
Article Synopsis
- The study explored the effects of pulsed electric field combined with ultrasound (PEF-US) on extracting polyphenols from litchi peels, aiming to find optimal extraction and purification parameters.
- Results showed that PEF-US extraction yielded 2.30 times more total phenols compared to traditional hot-water methods, and morphological analysis provided insights into the mechanism of enhanced recovery.
- The best purification resin was identified as LX-7, and the study confirmed that the purified polyphenols exhibited strong antioxidant and antibacterial properties, demonstrating PEF-US as an effective method for utilizing fruit processing waste.
Non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH) are emerging as the leading causes of liver disease worldwide. These conditions can lead to cirrhosis, liver cancer, liver failure, and other related ailments. At present, liver transplantation remains the sole treatment option for end-stage NASH, leading to a rapidly growing socioeconomic burden.
View Article and Find Full Text PDFObjective: The effectiveness of laparoscopic repeat hepatectomy (LRH) versus open repeat hepatectomy (ORH) on recurrent hepatocellular carcinoma (RHCC) is unclear. We compared the surgical and oncological outcomes of LRH and ORH in patients with RHCC with a meta-analysis of studies based on propensity score-matched cohorts.
Methods: A literature search was conducted on PubMed, Embase, and Cochrane Library with Medical Subject Headings terms and keywords until 30 September 2022.
AL-Net: Attention Learning Network Based on Multi-Task Learning for Cervical Nucleus Segmentation.
IEEE J Biomed Health Inform
June 2022
Article Synopsis
- - The text discusses cervical nucleus segmentation, which is important for automatic disease diagnosis but is complicated by issues like uneven staining and overlapping nuclei.
- - A new multi-task network based on U-Net is proposed, combining a primary task for predicting nuclei regions and an auxiliary task for predicting their boundaries to enhance feature extraction.
- - The network includes context encoding layers and an attention learning module, resulting in better performance compared to existing methods on multiple datasets, including ISBI 2014 and MoNuSeg.
Article Synopsis
- Naringenin, a citrus flavonoid, shows promise as a natural antimicrobial agent against biofilms that can cause food deterioration.
- The study demonstrated that naringenin reduces biofilm thickness and promotes the separation of bacterial colonies at sub-MIC concentrations, using advanced microscopy techniques to confirm these findings.
- It was observed that naringenin lowers cell surface hydrophobicity and exopolysaccharide production while downregulating genes related to biofilm formation, indicating its potential application in the food industry to prevent biofilm development.
Background: Polyostotic fibrous dysplasia (PFD) is an uncommon developmental bone disease in which normal bone and marrow are replaced by pseudotumoral tissue. The etiology of PFD is unclear, but it is generally thought to be caused by sporadic, post-zygotic mutations in the gene. Herein, we report the case of a young female with bone pain and lesions consistent with PFD, unique physical findings, and gene mutations.
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- Researchers studied how Chilo suppressalis, a pest in China, developed resistance to diamide insecticides like chlorantraniliprole from 2016-2018, linking this resistance to specific mutations in the RyR gene.
- The study identified several key mutations, including I4758M and Y4667D, and confirmed that these mutations significantly increased resistance to various diamide insecticides in genetically modified fruit flies.
- The findings enhance our understanding of insect resistance mechanisms and highlight the importance of target-site mutations in the RyR gene for managing pest resistance to diamide pesticides.
Article Synopsis
- The review aimed to evaluate the effectiveness of intra-articular steroid therapy (IAST) for treating hip osteoarthritis (OA), focusing on its efficacy and duration.* -
- Twelve trials were analyzed, showing that IAST significantly reduces pain in hip OA patients both immediately and up to 12 weeks after treatment, though the impact of certain factors like baseline severity remains debated.* -
- The study concluded that while IAST is effective and generally well-tolerated, more research is needed for long-term safety and efficacy data.*
Article Synopsis
- The study evaluated the sensitivity of three field populations of pink stem borer (PSB) to diamide insecticides, chlorantraniliprole and flubendiamide, and found that they remained responsive to these chemicals even after several years of exposure.
- Researchers cloned and characterized the full-length ryanodine receptor (RyR) gene (named SiRyR) from PSB, which is crucial for the action of diamide insecticides, revealing significant sequence similarities to RyRs in other insects.
- The analysis indicated that SiRyR expression was highest in pupae and adult males, particularly in the thorax, providing valuable insights for future studies on insecticide development and PSB biology.
In this study, we report the discovery and molecular characterization of a novel mycovirus, Nigrospora oryzae fusarivirus 1 (NoFV1) isolated from the rice-infecting fungus Nigrospora oryzae. Excluding a poly (A) tail, the genome of the virus is 7004 nucleotide (nt) long containing three putative nonoverlapping open reading frames (ORF1, ORF2, and ORF3). The large ORF1 encodes a polypeptide with a conserved RNA-dependent RNA polymerase (RdRp) domain and a helicase domain that functions for RNA replication.
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- - The study focuses on a newly isolated bacterium, Pseudomonas aeruginosa YL, which demonstrates effective simultaneous nitrification and denitrification, addressing the inefficiencies of traditional methods.
- - Key optimal conditions for nitrogen removal were identified: succinate as a carbon source, a C/N ratio of 10, pH 7.0, a temperature of 30°C, and a shaking speed of 160-200 r/min, achieving high removal rates of ammonia, nitrogen, and TOC.
- - Under these optimal conditions, strain YL achieved impressive nitrate and total nitrogen removal rates of 94.6% and 76.3%, highlighting its potential for efficient nitrogen removal in wastewater treatment.
Article Synopsis
- * The strain preferentially removed ammonium when mixed nitrogen sources were present, and specific genes related to these processes were successfully amplified, indicating biological activity.
- * Optimal conditions for nitrite removal were identified, with dissolved oxygen being the key factor, and enriched bacteria in a sequencing batch reactor led to stable nitrogen and organic removal, showing promise for practical applications.
[Uncertainty in-statistical-monitor for ICP-AES measurement system by using moving range pooled].
Guang Pu Xue Yu Guang Pu Fen Xi
October 2004
Article Synopsis
- The paper outlines a method for estimating uncertainty in measuring iron (Fe) in metallic silicon using ICP-AES technology.
- It introduces a technique called averaged moving range (MR) pooled in statistical dynamic monitor, which combines quality control and linear fitting.
- The findings aim to simplify the evaluation of measurement uncertainty by effectively managing variance contributions without complicated relationships.