关键词： 习近平新时代中国特色社会主义思想   提升核心竞争力   提升企业核心竞争力   能繁母猪   永新   核心功能   高质量发展   生猪出栏  

摘要： 近年来,在广西农垦集团公司党委的坚强领导下,永新畜牧集团坚持以习近平新时代中国特色社会主义思想为指导,围绕增强核心功能、提升核心竞争力,坚持深化改革提升,有力推动企业高质量发展。永新畜牧集团生猪出栏数从2021年的142.2万头发展到2024年430万头,2021年以来,已累计出栏生猪超1283万头,全国猪企排名上升至第12位,能繁母猪数量、年出栏生猪排名跃升至广西第1位。

关键词： 数字化转型   智力资本   无形资产   企业价值   文本分析   制造企业  

摘要： 以2012—2022年A股制造业上市公司为研究样本,对年报MD&A现状部分进行文本分析,基于智力资本视角探索制造企业数字化转型对企业价值的影响机制。研究发现,数字化转型程度越高的制造企业拥有越高的企业价值。机制检验表明,制造企业数字化转型程度越高,越有助于优化企业智力资本构成要素,即人力资本、结构资本和关系资本,从而提升企业价值。该结论经过一系列稳健性检验后仍然成立。进一步分析表明,数字化转型对智力资本的影响在不同资源密集度的制造企业中存在异质性。在经济高质量发展目标下,文章以智力资本为切入点,以期为数字经济和实体经济有效融合提供新思路。

关键词： 民办企业   人力资源   优化配置   影响因素   策略  

摘要： 民办企业在国民经济发展中占据重要地位,但其人力资源优化配置面临诸多挑战。本文深入分析了影响民办企业人力资源优化配置的关键因素,包括企业发展战略理解不足、组织结构不合理、劳动力市场人员素质参差不齐以及企业文化建设滞后等。针对这些问题,本文提出了几项有效策略:建立科学的人力资源管理体系、完善激励机制、加强培训与发展、强化企业文化建设。以期帮助民办企业提升人力资源管理水平,实现人力资源的优化配置,进而促进企业的可持续发展。

关键词： 内部控制   经营绩效   对策  

摘要： 本文基于2013—2023年沪深两市A股上市公司相关数据,探究内部控制与企业经营绩效之间的关系。结果表明,企业不断提升内部控制质量可以对企业经营绩效的提升产生正向影响;成本粘性问题会对企业经营绩效产生负面影响。对于成本粘性问题,企业可以通过不断加强内部控制工作,削弱成本粘性问题的负面影响,进而促进企业经营绩效的提升。企业应不断强化内部控制工作,在提升自身经营绩效的同时,增强自身市场竞争力。

关键词： Roman roads   Roman frontier hinterland   Geographic information systems (GIS)   Least-cost analysis   Spatial social network analysis   Visibility analysis  

摘要： This paper presents a broadly reusable and straightforward methodology for examining ancient road networks in the hinterlands of Roman frontiers, with attention to both intra- and inter-regional connectivity. It employs a range of tools-including Geographic Information Systems (GIS), Least Cost Analyses (LCA), Spatial Social Network Analysis (SSNA), and Visibility Analysis (VA)-to trace and interpret the road systems that facilitated troop movements, goods transport, and social exchange. The study exemplifies this methodology through an investigation of a frontier zone within a specific area of interest at the UNESCO World Heritage Site "Danube Limes" in Northern Noricum (modern Austria), spanning the mid-1st to the 5th century CE. By integrating archaeological data, open government datasets, and advanced digital methods, the analysis reveals a variety of pathways that may have supported military logistics and civilian travel across this strategically significant region. Selected roads identified through the analyses could be subsequently verified through *** paper also emphasizes the need for cautious interpretation, acknowledging the hypothetical nature of certain pathways and the inherent limitations of tracing ancient infrastructure through the methods employed.

关键词： Chlorpyrifos   Acrylic resin   Adsorption behavior   Kinetics and thermodynamics   Molecular simulation  

摘要： The main purpose of our research described in this paper was to elucidate the adsorption mechanism of the P (MA-SMA-St) on organophosphorus pesticides, especially chlorpyrifos, through a combination of experimental methods and software simulation. SEM analysis revealed that P(MA-SMA-St) exhibits a three-dimensional network structure with distinct micropores and folds. BET analysis demonstrated that P(MA-SMA-St) possesses a stable mesoporous structure, with a predominant pore diameter of 9-10 nm and a specific surface area of 31.56 m2 g-1. Additionally, EDS and XPS analyses further confirmed the adsorption of chlorpyrifos molecules on the surface of P(MA-SMA-St). Adsorption experiments indicated that the adsorption capacity of P(MA-SMA-St) reached up to 55.8 mg g-1. Pseudo-second-order kinetics and intra-particle diffusion models revealed a multistage adsorption mechanism of chlorpyrifos on the acrylic resin, demonstrating a transition from rapid physical adsorption to chemical adsorption. Furthermore, analyses using the Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich models indicated that the adsorption of chlorpyrifos on the acrylic resin is primarily monolayer adsorption, significantly influenced by temperature, and involves both physical and chemical interactions. Thermodynamic parameters suggested that the adsorption process is spontaneous and endothermic. Density Functional Theory (DFT) calculations and molecular dynamics simulations attributed the adsorption process to strong electrostatic interactions, it-it stacking, and van der Waals forces between the resin matrix and chlorpyrifos molecules. After six regeneration cycles, the adsorption efficiency only decreased by 6.2 %, indicating that P(MA-SMA-St) exhibits good stability.

关键词： cardiac arrest   coronary lesion   electrocardiogram   mortality   prediction  

摘要： OBJECTIVES:The use of electrocardiograms for predicting significant coronary lesions and mortality in patients with successfully resuscitated out-of-hospital cardiac arrest (OHCA) without ST-segment elevation has not been defined yet. The objective of this study was to investigate the association and predictive value of various standardized 12-lead electrocardiogram patterns in patients with successfully resuscitated OHCA and no ST-segment elevations on the presence of significant coronary lesions (diagnostic performance) and 30-day mortality (prognostic performance).DESIGN:Predefined subanalysis of the Angiography after Out-of-Hospital Cardiac Arrest without ST-Segment Elevation (TOMAHAWK) ***:Multicenter, international randomized controlled trial across 31 ***:Adult patients with successfully resuscitated OHCA and no ST-segment ***:The first recorded electrocardiogram after the return of spontaneous circulation (ROSC) at hospital admission was analyzed by experienced *** AND MAIN RESULTS:Significant coronary lesions and 30-day mortality. In total, 412 patients with a coronary angiography were included, of which 163 (40%) had significant coronary lesions. No electrocardiogram pattern was identified as a predictor of significant coronary lesions. In the total cohort of patients with and without coronary angiography, right bundle branch blocks (BBBs), prolonged intrinsicoid deflection times, and intrinsicoid deflections in right BBB were strong, independent predictors of 30-day mortality. The "intrinsicoid deflection" is the sharp upward deflection in the QRS complex of an electrocardiogram. The "intrinsicoid deflection time" is the interval from the start of the QRS complex to the peak of the R wave. The predictive performance for significant coronary lesions was poor across all electrocardiogram patterns and better for 30-day ***:Standardized 12-lead electrocardiogram patterns after R

关键词： pPCI   primary Percutaneous Coronary Intervention   STEMI   ST-segment Elevation Myocardial Infarction  

摘要： Background ST-segment elevation myocardial infarction (STEMI) is treated with immediate primary percutaneous coronary intervention (pPCI) to restore coronary blood flow in the acutely ischaemic territory, but is associated with reperfusion injury limiting the benefit of the therapy. No treatment has proven effective in reducing reperfusion injury. Transcoronary hypothermia has been tested in clinical studies and is well tolerated, but is generally established after crossing the occlusion with a guidewire therefore after initial reperfusion, which might have contributed to the neutral outcomes. Transcatheter strategies may also offer additional benefit through haemodilution and the resultant controlled reperfusion, but this has not been fully investigated for pPCI. Design STEMI-Cool is a pragmatic, registry-based randomised clinical pilot trial to test the recruitment rate, feasibility, and safety of a simple transcoronary cooling and dilution protocol. Sixty STEMI patients undergoing pPCI will be randomised 1:1 to standard of care or continuous infusion of room temperature saline through the guiding catheter to achieve intracoronary temperature reductions of 6 to 8 degrees C, commencing before crossing the coronary occlusion with a guidewire. Mechanistic outcome measures will include microvascular resistance, biomarkers of inflammation before infusion and at 24 hour, and magnetic resonance imaging of myocardial salvage and infarct size. Conclusions STEMI-Cool will investigate the recruitment rate, feasibility and safety of an innovative and simple cooling and diluting strategy for cardioprotection before and during reperfusion with pPCI, aiming to address limitations faced in other studies. Mechanistic outcome measures will allow insight into inflammatory, microvascular and structural changes induced by transcoronary cooling and dilution. (Am Heart J 2025;282:40-50.)

关键词： Wetland restoration   Nutrient load reductions   Long term monitoring   Watershed conservation   Eutrophication  

摘要： Wetlands are becoming increasingly utilized to mitigate runoff as water quality issues from excess nitrogen, phosphorus, and sediment continue to exacerbate eutrophication. This study focuses on long term nutrient and hydrologic data from the Grand Lake St. Marys (Ohio) Watershed where harmful algal blooms have proliferated for decades as a result of a combination of natural habitat loss and nonpoint source agricultural runoff. The objective of this study was to monitor long-term nutrient reductions associated with the restored and managed Coldwater Creek Wetland in order to guide future restoration efforts in the watershed and inform restoration efforts elsewhere. From 2017 to 2023, water samples were collected year-round from the wetland inflow and outflow and analyzed for nutrients (SRP, TP, and NO3-N) and total suspended solids (TSS) in addition to flow measurements to develop a complete hydrologic budget for the wetland source (Coldwater Creek), inflow, and outflow. Over the monitoring period, Coldwater Creek Wetland was able to intercept approximately 10.5 million m(3) of water equating to similar to 10% of the total flow entering Grand Lake St. Marys from this subwatershed while showing average load reductions of at least 63% for SRP (1.85 g/m(2)/yr), TP (5.2 g/m(2)/yr), NO3-N (48 g/m(2)/yr), and TSS (657 g/m(2)/yr). The need for long-term monitoring of wetlands is essential as documentation of ecosystem function over longer periods of time (as opposed to one or two years of monitoring) is paramount in improving our understanding of these restored ecosystems may help improve water quality.