Publications by authors named "Haowen Luo"

Aromatic rice is famous for its pleasant aroma which consists of many flavor volatiles. The present study was to explore the effects of selenium nanoparticle (SeNP) application on flavor volatiles of aromatic rice based on a worldwide database of flavor molecules accessed on November 19 2024. A field experiment was carried out with the foliar application of SeNP at early growth stage (S1), middle growth stage (S2), and late growth stage (S3) of aromatic rice plants in two cropping seasons.

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Six sulfur-substituted triptolide (TPL) analogs (STP1-6) were synthesized and evaluated for their biological functions. Among them, STP2 had significant antitumor activity both in vitro and in vivo. Notably, the intraperitoneal injections of 1 g/kg STP2 did not cause mice death and apparent pathological damage, while the mice in the TPL group (2 mg/kg) lost weight and all died within 4 days.

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Monolithic all-perovskite tandem solar cells present a promising approach for exceeding the efficiency limit of single-junction solar cells. However, the substantial open-circuit voltage loss in the wide-bandgap perovskite subcell hinders further improvements in power-conversion efficiency. Here we develop wide-bandgap perovskite films with improved (100) crystal orientation that suppress non-radiative recombination.

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Plasmonic superlattices enable the precise manipulation of electromagnetic fields at the nanoscale. However, the optical properties of static lattices are dictated by their geometry and cannot be reconfigured. Here, we present a surface-interface engineered plasmonic superlattice with confined polyelectrolyte-functionalized metal-organic framework (MOF) hybrid layers to tune plasmon resonance for ultrafast chemical sensing.

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Objective: To explore the performance of deep learning-based segmentation of infarcted lesions in the brain magnetic resonance imaging (MRI) of patients with acute ischemic stroke (AIS) and the recurrence prediction value of radiomics within 1 year after discharge as well as to develop a model incorporating radiomics features and clinical factors to accurately predict AIS recurrence.

Materials And Methods: To generate a segmentation model of MRI lesions in AIS, the deep learning algorithm multiscale residual attention UNet (MRA-UNet) was employed. Furthermore, the risk factors for AIS recurrence within 1 year were explored using logistic regression (LR) analysis.

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The application of selenium (Se) fertilizer not only promotes crop growth but also meets the human demand for Se by increasing the Se content in food. However, the application of nanosized selenium (nano-Se) in hybrid rice ( L.) production has not been reported.

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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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Article Synopsis
  • Some studies have highlighted the role of underlying diseases in COVID-19 outcomes for the elderly, but the effect of nutritional status has not been thoroughly investigated.
  • A retrospective analysis of 4241 COVID-19 patients admitted to a Nanchang hospital examined nutritional status using the prognostic nutritional index (PNI) and controlling nutritional status score (CONUT).
  • Findings showed that severe malnutrition significantly worsened COVID-19 outcomes, with PNI proving to be a reliable predictor, suggesting that monitoring nutritional status could help reduce critical illness in elderly patients.
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Article Synopsis
  • - The development of scalable all-perovskite tandem solar cells aims to improve efficiency compared to smaller models, but current 1-cm-scale versions are less efficient due to inhomogeneity in the materials used.
  • - A significant source of this inhomogeneity is identified at the top interface during the deposition of the electron transport layer (ETL), which affects performance.
  • - By using a mixture of 4-fluorophenethylamine and 4-trifluoromethyl-phenylammonium to create a tailored 2D perovskite layer, researchers enhanced the performance, achieving an impressive efficiency of 28.5% for all-perovskite tandem cells, marking a notable advancement
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Article Synopsis
  • - The study investigates the link between the Barthel Index (BI), which measures daily living activities, and stroke-associated pneumonia (SAP) in elderly patients with acute ischemic stroke (AIS), finding a significant association where lower BI correlates with a higher risk of SAP.
  • - Data from over 7,500 stroke patients showed that those with SAP had notably lower BI scores compared to those without SAP, and the risk of SAP decreased with increasing BI scores across different groups.
  • - The analysis revealed that factors like white blood cell count and health insurance type, along with BI and NIHSS scores, are key predictors for the development of SAP in these patients, highlighting the importance of assessing functional abilities upon hospital admission.
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Cadmium (Cd) pollution restricts the rice growth and poses a threat to human health. Nanosized selenium (NanoSe) is a new nano material. However, the effects of NanoSe application on aromatic rice performances under Cd pollution have not been reported.

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Background: Many studies have shown that adverse childhood experiences (ACEs) lead to adverse social relations in middle-aged and older adults and harm physical and mental health, but few studies have focused on the impact of ACEs on marital status in middle-aged and older adults and the potential influence of marital status between ACEs and depressive symptoms.

Purpose: This study aimed to analyze the effect of ACEs on marital status and depressive symptoms in the Chinese middle-aged and older adults, and to explore the mediating role of marital status in the association between ACEs and depressive symptoms in middle-aged and older adults.

Method: This study used the China Health and Retirement Longitudinal Study (CHARLS) 2014 life history survey and 2015 and 2018 follow-up data to analyze, ten ACEs conditions and marital status were collected by questionnaire, using the Center for Epidemiological Studies Depression Scale (CESD-10) 10-item short form to assess depressive symptoms.

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Article Synopsis
  • Perovskite/silicon tandem solar cells can achieve high efficiency at a lower cost, but making them in air without damaging moisture is a big challenge.
  • This study shows that using n-Butanol as a solvent helps reduce moisture damage and improves the quality of perovskite films during production.
  • With this method, researchers achieved a notable efficiency of 29.4% for the tandem cells, paving the way for large-scale manufacturing and potential commercial use.
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Investigating the antibiotic resistance genes (ARGs) and virulence factors (VFs) within soil microbial communities is crucial for understanding microbial ecology and the evolution of antibiotic resistance. However, the study of ARGs, VFs, and their predominant microbial hosts in soils under varying rice production management practices remains largely underexplored. To this end, a three-year field experiment was conducted under organic management within a double rice cropping system in South China.

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Object: The aim of this study was at building an effective machine learning model to contribute to the prediction of stroke recurrence in adult stroke patients subjected to moyamoya disease (MMD), while at analyzing the factors for stroke recurrence.

Methods: The data of this retrospective study originated from the database of JiangXi Province Medical Big Data Engineering & Technology Research Center. Moreover, the information of MMD patients admitted to the second affiliated hospital of Nanchang university from January 1st, 2007 to December 31st, 2019 was acquired.

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2-Acetyl-1-pyrroline (2-AP) is a key volatile organic compound in fragrant rice aroma. However, the effects of temperature on 2-AP biosynthesis in fragrant rice and its regulation mechanism have been rarely reported. In the present study, three fragrant rice varieties were used as plant materials, and four temperature treatments during the grain-filling stage, i.

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A novel method is proposed based on the improved YOLOV5 and feeding functional area proposals to identify the feeding behaviors of nursery piglets in a complex light and different posture environment. The method consists of three steps: first, the corner coordinates of the feeding functional area were set up by using the shape characteristics of the trough proposals and the ratio of the corner point to the image width and height to separate the irregular feeding area; second, a transformer module model was introduced based on YOLOV5 for highly accurate head detection; and third, the feeding behavior was recognized and counted by calculating the proportion of the head in the located feeding area. The pig head dataset was constructed, including 5040 training sets with 54,670 piglet head boxes, and 1200 test sets, and 25,330 piglet head boxes.

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Scalable fabrication of all-perovskite tandem solar cells is challenging because the narrow-bandgap subcells made of mixed lead-tin (Pb-Sn) perovskite films suffer from nonuniform crystallization and inferior buried perovskite interfaces. We used a dopant from Good's list of biochemical buffers, aminoacetamide hydrochloride, to homogenize perovskite crystallization and used it to extend the processing window for blade-coating Pb-Sn perovskite films and to selectively passivate defects at the buried perovskite interface. The resulting all-perovskite tandem solar module exhibited a certified power conversion efficiency of 24.

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Purpose: To explore the predictive value of radiomics in predicting stroke-associated pneumonia (SAP) in acute ischemic stroke (AIS) patients and construct a prediction model based on clinical features and DWI-MRI radiomics features.

Methods: Univariate and multivariate logistic regression analyses were used to identify the independent clinical predictors for SAP. Pearson correlation analysis and the least absolute shrinkage and selection operator with ten-fold cross-validation were used to calculate the radiomics score for each feature and identify the predictive radiomics features for SAP.

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Background: Paclobutrazol is widely used in the agricultural field. This study investigated the effects of seed priming with different concentrations of paclobutrazol on seedling quality, 2-acetyl-1-pyrroline (2-AP, a key aroma component of fragrant rice) biosynthesis, and related physiological and biochemical indicators in fragrant rice seedlings.

Results: The experiment is being conducted at the College of Agriculture, South China Agricultural University.

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All-perovskite tandem solar cells offer the potential to surpass the Shockley-Queisser (SQ) limit efficiency of single-junction solar cells while maintaining the advantages of low-cost and high-productivity solution processing. However, scalable solution processing of electron transport layer (ETL) in p-i-n structured perovskite solar subcells remains challenging due to the rough perovskite film surface and energy level mismatch between ETL and perovskites. Here, scalable solution processing of hybrid fullerenes (HF) with blade-coating on both wide-bandgap (≈1.

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Wide-bandgap (WBG) perovskite solar cells hold tremendous potential for realizing efficient tandem solar cells. However, nonradiative recombination and carrier transport losses occurring at the perovskite/electron-selective contact (e.g.

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Light-induced halide segregation constrains the photovoltaic performance and stability of wide-bandgap perovskite solar cells and tandem cells. The implementation of an intermixed two-dimensional/three-dimensional heterostructure via solution post-treatment is a typical strategy to improve the efficiency and stability of perovskite solar cells. However, owing to the composition-dependent sensitivity of surface reconstruction, the conventional solution post-treatment is suboptimal for methylammonium-free and cesium/bromide-enriched wide-bandgap PSCs.

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Combining wide-band gap (WBG) and narrow-band gap (NBG) perovskites with interconnecting layers (ICLs) to construct monolithic all-perovskite tandem solar cell is an effective way to achieve high power conversion efficiency (PCE). However, optical losses from ICLs need to be further reduced to leverage the full potential of all-perovskite tandem solar cells. Here, metal oxide nanocrystal layers anchored with carbazolyl hole-selective-molecules (CHs), which exhibit much lower optical loss, is employed to replace poly(3,4-ethylenedioxythiophene) polystyrenesulfonate (PEDOT : PSS) as the hole transporting layers (HTLs) in lead-tin (Pb-Sn) perovskite sub-cells and ICLs in all-perovskite tandem solar cells.

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Introduction: Stroke is a leading cause of mortality and disability worldwide. Recurrent strokes result in prolonged hospitalisation and worsened functional outcomes compared with the initial stroke. Thus, it is critical to identify patients who are at high risk of stroke recurrence.

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