Efficient Promoter Research Articles

Impact of Urban Agglomeration Development Planning Policy on the Promotion of Efficiency of Urban Economic Development: Empirical Evidence from 283 Cities in China

Impact of Urban Agglomeration Development Planning Policy on the Promotion of Efficiency of Urban Economic Development: Empirical Evidence from 283 Cities in China

FACTORS INFLUENCING THE FORECAST OF ENERGY CONSUMPTION OF THE COUNTRY IN THE CONDITIONS OF WAR AND THE AMOUNT OF REDUCTION OF GREENHOUSE GAS EMISSIONS

The article highlights three main factors that influence the forecast of the consumption of energy in the economy of Ukraine. These are structural shifts in its economy, changes in the structure of energy consumption in Ukraine, and volumes and directions of reduction of greenhouse gas emissions (GHG) in the conditions of compliance with international emission limitations. The conservative scenario of the development of the country's economy is considered. It predicts a moderate recovery, with the economy growing at 2.5 % per year. This pace has been chosen under the condition of the continuation of russia's armed aggression against Ukraine and the end of the active phase of hostilities by the end of 2025. The change in the structure of the economy during russia's military aggression against Ukraine was studied. The directions of further development of key sections of the economy have been determined. Strategic measures to reduce GHG emissions are highlighted, primarily in industry and in the energy sector in particular. Reducing fuel consumption by types of industrial sectors in Ukraine will be achieved through the introduction of energy-efficient technologies and processes aimed at reducing energy consumption in production, by switching to the use of more ecological energy sources, such as renewable energy sources; modernization of industrial facilities and equipment to reduce fuel consumption; implementation of energy saving and energy efficiency promotion programs in industry; reforming the energy sector and increasing energy efficiency in general. According to the updated nationally defined contribution of Ukraine to the Paris Agreement in 2021, the country committed to achieving a reduction of greenhouse gas emissions by 35 % from the 1990 level by 2030 and switching to energy-efficient and low-carbon technologies. Keywords: structure of the economy, energy resources, structure of energy consumption, forecasting, greenhouse gases.

Readiness of primary healthcare and community markets for joint delivery of cardiovascular disease prevention services in Kenya: an observational feasibility study of Health Kiosks in Markets (HEKIMA)

ObjectivesThe increasing burden of cardiovascular diseases (CVDs) in Kenya threatens its healthcare system. There is a need for innovative models that improve equitable access to CVD prevention services. Community markets...

Internal governance and investment efficiency: The role of non-CEO executives

In this paper, we reveal an overlooked but important role of corporate governance on investment efficiency: non-CEO executives. Internal governance, measured as the fraction of independent executives appointed before the current CEO, leads to a better investment efficiency. The governance effect is pronounced when executives have stronger incentives, such as a longer horizon or a higher shareholding ratio. To explain the promotion of investment efficiency, we find that independent executives help constrain CEO power. They also contribute to better quality of accounting information. Moreover, internal governance by non-CEO executives is hardly affected by external supervisors, and other internal governance mechanisms fail to enhance firms' investment efficiency, indicating the unique monitoring role of independent non-CEO executives. Our study demonstrates the significance of a democratic management team and the necessity to limit the power of CEOs to appoint new executives.

Strategic carbon emission assessment in sludge treatment: A dynamic tool for low-carbon transformation

The carbon–neutral target presents a significant challenge for the sewage sludge treatment and disposal (SSTD) industry, necessitating strategic planning for a low-carbon transition. However, flexible and comprehensive carbon emission analysis tools to support this goal remain lacking. This study presents a carbon emission analysis tool to evaluate the carbon emission characteristics and future mitigation potentials of SSTD. The tool integrates life cycle inventory (LCI) modeling-based analysis, sensitivity analysis, regression analysis, and scenario analysis. Carbon emissions are dynamically calculated based on sludge properties, technological level, and industry external parameters, providing a foundation for adaptable evaluation tailored to local conditions. The framework considers the potential effects of multi-parameter and multi-aspect changes in scene design, both within and outside the industry, to achieve dynamic and comprehensive simulations. A case study conducted in Wuhan, China, demonstrated the usability and application processes of the framework. The results indicated that carbon emissions from SSTD are projected to more than double from 2021 to 2060 without interventions. Among the mitigation measures, energy and chemical savings would yield the largest reduction potential, followed by the technical layout adjustment and the promotion of energy efficiency. Operational optimization in the sludge industry and outside the industry would contribute the least. With all mitigation measures applied, emissions could decrease to –82.91 kt CO2-eq in 2060, equivalent to 13.03% compensation for emissions from the sewage treatment line. Among all the processes, incineration routes are recommended due to their current and future low carbon emissions. The cooperative resource route of anaerobic digestion and land use also shows promise as it progressively demonstrates superior performance with increasing organic matter and nutrient content of sludge. Critical factors, sub-processes, and emission types for different routes were identified and can be optimized accordingly. The developed method demonstrates sufficient flexibility to be applied to other cities and larger-scale regions, thereby offering technical and strategic support for SSTD towards carbon–neutral operation.

Cultivar mixtures of maize enhance grain yield and nitrogen use efficiency by promoting canopy photosynthetically active radiation and root growth

Cultivar mixtures increases crop diversification and grain yield stability. It is a major challenge to achieve high grain yield and nitrogen use efficiency with environmentally friendly practices. However, it is currently unclear whether the cultivar mixtures of maize can improve nitrogen use efficiency. A two-year field experiment was conducted using two maize cultivars with different roots angles and leaf angles planted in monoculture or in mixtures under four nitrogen levels N0 (0 kg N ha-1), N140 (140 kg N ha-1), N280 (280 kg N ha-1) and N340 (340kg N ha-1). Cultivar mixtures significantly increased light interception of middle canopy, dry matter accumulation and total roots length under N0, N140, and N280 conditions. Light interception of middle canopy positively related to dry matter accumulation and thus increased grain yield. And light interception of whole canopy positively related to total lateral root length, while the increased total lateral root length of outer nodal roots significantly improved nitrogen accumulation and nitrogen use efficiency. Thus, cultivar mixtures promoted an optimal canopy structure and good root growth, then improved grain yield and nitrogen use efficiency. These findings could deepen our understanding of the facilitating effect of canopy structure and root traits of cultivar mixtures on the collaborative promotion of grain yield and nitrogen use efficiency.

Innovative talent agglomeration, spatial spillover effects and regional innovation performance-Analyzing the threshold effect of government support.

As the primary source of innovation in science and technology, the gathering of creative talent plays a significant role in fostering regional innovation and providing the impetus needed to realize the Chinese people's aspiration of a great national rejuvenation. Using panel data from 31 provinces over a 12-year period between 2009 and 2020, the spatial Durbin model is constructed to examine the spatial spillover impact of talent agglomeration on the advancement of regional innovation performance, and the panel threshold model is identified and set up to consider whether the nonlinear effect between talent agglomeration and regional achievements in innovation is significant. The analysis demonstrates that: talent pooling has a non-linear effect on the level of innovation performance development, within a certain scale, talent pooling produces an increasing marginal contribution to innovation performance, but after exceeding the limit, it produces a diminishing marginal contribution; the double threshold effect of talent pooling on regional innovation performance is more significant, and government support as a moderating variable confirms that there is a structural mutation between talent pooling and innovation capability. The structural mutation, within a certain threshold range, plays the role of efficient promotion, providing reference for improving regional innovation level.

2-Nitro-4-Carboxyphenylhydrazine and 2,4-Dicarboxylphenylhydrazine as a Pair of Novel Reactive MALDI Matrices for Rapid and Accurate Profiling of N-Glycome in Dual Ion Modes.

N-glycosylation is closely linked to a wide range of biological functions in organisms. Owing to the constriction of awful crystals formed by conventional MALDI matrices and the extremely inferior ionization efficiency of N-glycans, the traditional direct detection of N-glycans by matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) has been gradually replaced by postderivatization detection using reactive matrices. Nevertheless, the laborious identification of complex spectral peaks remains the major difficulty in N-glycan profiling. Hence, we logically designed and synthesized two novel reactive matrices, 2-nitro-4-carboxylphenylhydrazine (NCPH) and 2,4-dicarboxylphenylhydrazine (DCPH), and separately combined them with the acidic matrix 2,5-dihydroxybenzoic acid (DHB) to constitute two composite matrices with high on-target derivatization efficiency and significant promotion of N-glycan ionization for productive MALDI analysis in dual ion modes. Using both composite matrices, we can actualize MALDI-MS and MS2 mass calibration in dual ion modes by postderivatization detection and fragmentation of dextrans and selectively enhance the ionization effect of oligosaccharides in mixed systems. Quite homogeneous cocrystals can ensure N-glycan quantification with decent linearity and reproducibility. A fixed mass difference derived from the identical N-glycan in two ion modes is available for rapid identification in complex biological samples. Ultimately, the developed strategy was triumphantly employed to identify and quantify the relative content and alteration tendency of peach N-glycans, which can be referable to the latent correlation between N-glycan expression and peach ripening.

Exploratory Study of Metaverse in Business in Indonesia Using Scenario Planning Approach (Metaverse Case Study in Digital Business & Technology Division PT Telkom Indonesia)

The Metaverse, as the next step after the internet (Web1) and Social Media (Web2), gained attention after Facebook rebranded to Meta in 2021, signaling a focus on its development. While still in its early stages, with limited business applications beyond marketing, this research explores potential metaverse scenarios in Indonesia through PT Telkom’s Digital Business & Technology Division. Using the TAIDA method and a qualitative approach with primary interviews and secondary data, the study highlights Indonesia’s strong potential for metaverse growth, driven by internet adoption, VR/AR technology, cryptocurrency, and government support. Key uncertainties include low adoption, early-stage development, and unclear regulations. Four business scenarios are analyzed, focusing on promotion inefficiency, digital gaming interest, cybersecurity concerns, and potential platform discontinuation. Business scenarios encompass a booming metaverse, metaverse as a game, metaverse as a virtual world threat, and social media dominance. Scenario 1 analysis reveals PT Telkom’s focus on developing metaverse with risks related to promotional inefficiency. Scenario 2 involves developing metaverse’s digital game with the risk of low public interest. Scenario 3 emphasizes cybersecurity with risks related to societal disinterest. Scenario 4 envisions discontinuing metaverse with risks tied to customer misunderstanding. The primary objectives target awareness, cybersecurity, and customer understanding while ensuring platform reliability and regulatory guidance.

Steering intermediates coverage of W-doped Fe3N for efficient kinetic promotion in water splitting by lattice and electronic configuration engineering

The development of catalysts that promote kinetic processes represents a significant frontier in the field of catalyst design. Here, a facile strategy is employed to fabricate W-Fe3N@NC. The incorporation of W results in effective lattice and electronic configuration engineering, providing a favorable environment for the in-situ formation of high-valent Fe4+ and the lattice contraction. The kinetics of the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are fully improved by steering the intermediate coverages and binding energies. W-Fe3N@NC exhibits superior HER performance at universal pH range and a significantly enhanced alkaline OER performance. Density functional theory (DFT) analysis verifies the lattice and electronic engineering and indicates that the higher valence state and weakened adsorption of the intermediates boost the activity of OER and HER. This study offers new insights into effective electrocatalyst design through lattice and electronic engineering, and provides a basis for further exploration of the kinetic promotion mechanism of catalysts.

Digital Application of BIM Technology in the Architectural Design Stage

This paper discusses the digital application of building information model (BIM) technology in the architectural design stage. Taking the large-scale comprehensive development project of Guangxi headquarters base as an example, this paper analyzes in detail how BIM technology promotes the intelligence and refinement of the design process. Through the three-dimensional modeling and simulation analysis of BIM technology, the project design has realized the accurate transformation from concept to operation, which not only improves the design efficiency, but also ensures the construction quality and economic benefits. This paper focuses on the application of BIM in the digital design of building structure, the deepening design of steel nodes, as well as the remarkable results in the comprehensive layout optimization of mechanical and electrical pipelines. Through the collision detection and optimization design of the BIM model, the potential design conflicts and construction problems were found and solved at the initial stage of the project, ensuring the efficient promotion and smooth implementation of the project. The research results show that BIM technology, as the core digital tool in the architectural design stage, is of great significance for improving the overall design level of the construction industry and realizing intelligent construction.

In situ Single-Pass Perfused Rabbit Intestinal Study sample Analysis of Ractopamine by UPLC

In recent years, the prediction of oral drug absorption in humans has been a challenge for researchers and many techniques for permeability studies have been developed for several purposes, including biowaiver processes. The Single-Pass Intestinal Perfusion (SPIP) method performed in rats can provide permeability results closest to in vivo condition. he use of SPIP in rats and calculations for absorption prediction in humans may indicate the transport mechanisms and/or pre-systemic metabolism involved on permeation processes of drugs, since this model is the closest to in vivo conditions. Ractopamine hydrochloride is a commercial beta-adrenergic agonist commonly used as a dietary supplement in cattle production for improved feed efficiency and growth promotion. Currently, regulatory target tissues (as approved in the New Animal Drug Application with Food and Drug Administration) for ractopamine residue testing are muscle and liver. The aim of the study is to develop and validate an UPLC assay method to determine whether detectable and quantifiable levels of perfused ractopamine in small intestine of cattle or not. The separation is carried on Acquity UPLC BEH C18 (150mm x 2.1mm, 1.7 µm) reversed phase column using acetonitrile and 0.01M ammonium formate as the mobile phase in gradient mode at flow rate of 0.5mL/min. The precision, accuracy, extraction recovery, matrix effect, and stability meet the requirements of the guiding principles. In order to verify the sensitivity and selectivity of the method in a real-time situation, the developed method is successfully applied to a perfusion study in small intestine of rabbit and the samples were analyzed by Empower software.

Screening high-efficiency promoter to construct trans-vp28 gene Anabaena sp. PCC7120 against white spot syndrome virus of Litopenaeus vannamei

This study aimed to select high-quality promoters to construct trans-vp28 gene Anabaena sp. PCC7120 and feed Litopenaeus vannamei to assess the effect of L.vannamei against white spot syndrome virus (WSSV). Transgenic algae were created using five plasmids containing PrbcL, Pcpc560, Ptrc, Ptac, and PpsbA. According to the gene expression efficiency and the growth index of transgenic algae, Pcpc560 was determined to be the most efficient promoter. Shrimps were continuously fed trans-vp28 gene Anabaena sp. PCC7120 for one week and then challenged with WSSV. After the challenge, the transgenic algae group (vp28-7120 group) was continuously immunized [continuous immunization for 0 days (vp28-7120-0d); continuous immunization for 2 days (vp28-7120-2d); continuous immunization for 4 days (vp28-7120-4d)]. After seven days, the daily survival rate of each experimental group was continuously tracked. Following the viral challenge, the hepatopancreas samples were assayed for their levels of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px), thioredoxin peroxidase (TPX), acid phosphatase (ACP), and alkaline phosphatase (AKP) at varying time intervals. In comparison to the positive control group (challenge and no vaccination) and the wild-type group (challenge, fed wild-type Anabaena sp. PCC7120), the vp28-7120 group (challenge, fed trans-vp28 gene Anabaena sp. PCC7120) exhibited a remarkable increase in survival rates, reaching 50 % (vp28-7120-0d), 76.67 % (vp28-7120-2d), and 80 % (vp28-7120-4d). Furthermore, the vp28-7120 group consistently displayed significantly higher activities of SOD, CAT, GSH-Px, ACP, and AKP, while exhibiting notably lower TPX activity, when compared to the control group. These results indicate that the Pcpc560 promoter effectively elevated the expression level of the exogenous vp28 gene and spurred the growth of the trans-vp28 gene Anabaena sp. PCC7120. Consequently, trans-vp28 gene Anabaena sp. PCC7120 significantly bolstered the immunity of L.vannamei. Therefore, utilizing the Pcpc560 promoter to develop trans-vp28 gene Anabaena sp. PCC7120 based oral vaccine is highly beneficial for industrial-scale cultivation, advancing its commercialization prospects.

Thermal performance and Feasibility Study Using a Straw-Based Thermal Insulation in Geothermal systems

Straw is the part of the stem (or stubble) of certain grasses, known as "straw cereals", and is most often a by-product or waste product of cereal production. In northern Algeria, it is produced in all cereal growing regions. It is generally used for animal feed. In this study, straw waste is used as a bio-material for thermal insulation in bioclimatic constructions and especially in geothermal applications, and the thermal insulation needs in a geothermal system is discussed. Furthermore, thermal performance of wheat straw aggregates bio-based material is tested for several thicknesses until stable results are achieved, using conduction heat transfer tests or heating flat plate. This method is based on the temperature difference measuring across the sample (inlet and outlet) and finally, compared it with other commercial geothermal insulation materials. Obtained results give us an idea of the energy gains to be expected from the bio-based materials manufacture to be used in geothermal systems comparing to conventional materials. It is noted that, the optimum thickness of the insulation material based on straw is 2cm, giving a temperature gradient around 9°C versus 16°C for conventional materials. Straw organic waste material is a promising candidate as an alternative insulating material for low-carbon and green buildings targets. Which are in line with the objectives set by the Algerian government as part of the fight against climate change, in particular the development of renewable energies, the promotion of energy efficiency as well as clean technologies and waste recycling.

Oral care in the ICU as an efficient health promotion strategy for geriatric patients: a critical analysis

Oral care in the ICU as an efficient health promotion strategy for geriatric patients: a critical analysis

Energy efficiency and greenhouse gas emissions: A panel ARDL model of top five emitters in Africa

The Paris Agreement has mandated drastic decarbonization by developed and developing economies. Many of the top African emitters are now exploring drastic restructuring of the production processes in a way that promotes energy utilization efficiency. This is critical for ensuring an environmentally benign growth process. This study presents a unique addition to the body of existing knowledge by analysing the effect of some indicators of energy efficiency on three indicators of environmental quality among the top five emitters of GHG in Africa. The data were from the World Development Indicators (WDI), covering the 1990–2020 periods for South Africa, Egypt, Nigeria, Algeria, and Libya. The panel Autoregressive Distributed Lag (ARDL) model was used for data analysis. The results showed that all the included series were stationary at first difference. The optimum lag lengths were determined independently in STATA 17 software, and the most frequent lags across the countries were selected. The Hausman test revealed that the pooled mean group (PMG) estimation was preferred to other estimators. The results showed that in the long-run, particulate emission damages, CO2 intensity, and energy use intensity positively impacted GHG emissions, while GDP per capita and renewable energy utilization produced mixed results. In the short run, the error correction mechanism parameters were all significant (p < 0.01) in Libya for all emission indicators, while Algeria showed significance (p < 0.01) in total GHG and CO2 per capita models. The coefficient of particulate emission damages significantly reduced (p < 0.01) total GHG emissions in Libya and Nigeria and renewable energy significantly increased (p < 0.01) GHG emissions in South Africa but reduced them in Nigeria. Also, CO2 emission intensity significantly (p < 0.01) and positively impacted GHG emissions in South Africa, Egypt, Libya, and Nigeria, while electricity power transmission losses increased total emissions and CO2 emissions in Libya and Algeria. It was concluded that initiatives to reduce GHG emissions should focus on developing countries’ sensitivity to emission damages, and promotion of initiatives for using renewable energies. Also, promotion of energy efficiency across industries offers a prospect for ensuring environmental sustainability.

In-situ surface reconstruction of Co-based imidazole zeolite framework by Mo etching for superior water oxidation

Although zeolitic imidazolate frameworks (ZIFs) possess the merits of orderly porosity, high permeability, and easy functionalization, the transformation of ZIFs into the real active species and the promotion of the catalytic efficiency and stability are still challenging. Herein, CoMo-based three-dimensional (3D) hollow nanocages composed of interconnected nanosheets are fabricated by in-situ etching metal–organic framework (ZIF-67) under the aid of MoO42−. X-ray photoelectron spectroscopy (XPS) and in-situ Raman confirm that Mo leaching can accelerate surface reconstruction and generate CoOOH active sites after continuous oxidation. Benefiting from the nanostructure and electronic properties after surface reconstruction, the engineered CoMo-30 exhibits the lowest overpotential of 280 mV at 30 mA cm−2 and robust stability over 110 h in 1 M KOH media for oxygen evolution reaction (OER), which significantly surpasses the other counterparts and commercial RuO2. Density functional theory (DFT) calculations indicate that CoMo-30 has a lower free energy of *O → *OOH as rate determining step (RDS), suggesting that CoOOH sites play a crucial role in enhancing the activity and kinetics of OER. This work provides valuable insights into the rational design of hollow structures and the structure-composition-activity relationship during the electrochemical reaction process.

Central bank digital currency, financial technology level and regional financial stability

This study delves into the relationship between the issuance of central bank digital currencies (CBDCs) and regional financial stability. Through empirical analysis, we find that the pilot policy of digital yuan has a significant positive impact on financial stability. Further analysis of regional heterogeneity reveals that cities in central and western China, which have a weaker financial foundation, experience more pronounced improvements in financial stability under the digital yuan pilot compared to eastern regions. Additionally, the level of financial technology plays a crucial moderating role in enhancing the effects of the digital yuan pilot policy, particularly in central and western regions. These findings provide valuable insights for policymakers, aiding in the more precise and efficient promotion of digital currency pilots and related financial technology development.

Isolation of Rhizobium from Moisture Stress Imposed Groundnut Nodules

Groundnut is an important oil seed crop accounts for a less than half of the major oilseeds produced in the country. Oil content of Groundnut varies from 44 % to 50 % depending upon the varieties and agronomic practices. It is also called as ‘king of oil seeds’ More than 85 % of the crop Is grown under rainfed conditions in low fertile soils. Rhizobium is a well-known symbiotic nitrogen fixing bacteria. Inoculation of Rhizobium improves plant growth, pod kernel and Oil yield. Rhizobium species help in improving root nodulation and nitrogen fixation, enhancing plant growth and yield of leguminous plants including groundnut under moisture stress conditions. Hence the present study is to isolate Rhizobium species from groundnut nodules by following method given by Vincent (1970) after growing them on Yeast Mannitol Agar Media morphological characteristics were studied, which can be further used for improving nodulation efficiency and plant growth promotion under moisture stress conditions.

Can Development in the Digital Economy Lead to A Win-Win for ‘Efficiency Promotion’ and ‘Emission Reduction’?

Abstract The contemporary landscape sees the digital economy (DE) as a pivotal driver of economic evolution. Hence, scrutinising its potential to harmonise ‘efficiency promotion’ and ‘emission reduction’ and combat the challenges of climate change in this digital epoch is imperative. This study empirically investigates the influence of DE growth by evaluating its impact on carbon emission scale and energy efficiency. The study employs econometric modelling to delve into the internal mechanisms and diverse characteristics of DE evolution that influence ‘efficiency promotion’ and ‘emission reduction’. Findings underscore a significant capacity within the DE to ameliorate energy efficiency and curtail overall carbon emissions, revealing its dual prowess in fostering ‘efficiency promotion’ and ‘emission reduction’. Robustness tests affirm these outcomes, fortifying the conclusion. Additionally, the effects of DE development on ‘efficiency promotion’ and ‘emission reduction’ are validated in these tests. The study reveals that the ‘efficiency promotion’ and ‘emission reduction’ facets of DE progression exhibit distinctive regional disparities, notably manifesting more pronounced impacts in the eastern regions.