Positive Force Research Articles

Leadership and its relationship to the effectiveness of decision-making in an economic organization

Leadership is the nexus between the human resources of an organisation and its future plans and visions. It is regarded as the crucible through which all administrative concepts and strategies are melted and interact, supporting the positive forces within the organisation and reducing the negative aspects to the greatest extent possible.

Unveiling the dance of evolution: Pla-mediated cleavage of Ymt modulates the virulence dynamics of Yersinia pestis.

The emergence of Y. pestis as a highly lethal pathogen is driven by extensive gene pseudogenization and acquisition of exogenous plasmids pPCP1 and pMT1. However, the interplay between these two plasmids during evolution remains largely unexplored. Our study reveals intricate interactions between Ymt and Pla, two crucial virulence determinants encoded on these plasmids. Pla-mediated cleavage of Ymt significantly decreases Y. pestis survival in mouse blood and enhances its virulence in mice. The prevalent Pla-I259T variant in modern strains displays reduced Ymt cleavage, thereby extending the survival of infected animals and potentially increasing strain transmissibility. Our findings shed light on the nuanced evolution of Y. pestis, wherein reduced cleavage efficiency is a positive selection force, shaping the pathogen's natural trajectory.

Changing climatic controls on the greenhouse gas balance of thermokarst bogs during succession after permafrost thaw.

Permafrost thaw in northern peatlands causes collapse of permafrost peat plateaus and thermokarst bog development, with potential impacts on atmospheric greenhouse gas exchange. Here, we measured methane and carbon dioxide fluxes over 3 years (including winters) using static chambers along two permafrost thaw transects in northwestern Canada, spanning young (~30 years since thaw), intermediate and mature thermokarst bogs (~200 years since thaw). Young bogs were wetter, warmer and had more hydrophilic vegetation than mature bogs. Methane emissions increased with wetness and soil temperature (40 cm depth) and modelled annual estimates were greatest in the young bog during the warmest year and lowest in the mature bog during the coolest year (21 and 7 g C-CH4 m-2 year-1, respectively). The dominant control on net ecosystem exchange (NEE) in the mature bog (between +20 and -54 g C-CO2 m-2 year-1) was soil temperature (5 cm), causing net CO2 loss due to higher ecosystem respiration (ER) in warmer years. In contrast, wetness controlled NEE in the young and intermediate bogs (between +55 and -95 g C-CO2 m-2 year-1), where years with periodic inundation at the beginning of the growing season caused greater reduction in gross primary productivity than in ER leading to CO2 loss. Winter fluxes (November-April) represented 16% of annual ER and 38% of annual CH4 emissions. Our study found NEE of thermokarst bogs to be close to neutral and rules out large CO2 losses under current conditions. However, high CH4 emissions after thaw caused a positive net radiative forcing effect. While wet conditions favouring high CH4 emissions only persist for the initial young bog period, we showed that continued climate warming with increased ER, and thus, CO2 losses from the mature bog can cause net positive radiative forcing which would last for centuries after permafrost thaw.

Acoustic radiation force on a cylindrical composite particle with an elastic thin shell and an internal eccentric liquid column in a plane ultrasonic wave field

Abstract A model with three-layer structure is introduced to explore the acoustic radiation force (ARF) on composite particles with an elastic thin shell. Combing acoustic scattering of cylinder and the thin-shell theorem, the ARF expression was derived, and the longitudinal and transverse components of the force and axial torque for an eccentric liquid-filled composite particle was obtained. It was found that many factors, such as medium properties, acoustic parameters, eccentricity, and radius ratio of the inner liquid column, affect the acoustic scattering field of the particle, which in turn changes the forces and torque. The acoustic response varies with the particle structures, so the resonance peaks of the force function and torque shift with the eccentricity and radii ratio of particle. The acoustic response of the particle is enhanced and exhibits higher force values due to the presence of the elastic thin shell and the coupling effect with the eccentricity of the internal liquid column. The decrease of the inner liquid density may suppress the high-order resonance peaks, and internal fluid column has less effects on the change in force on composite particle at ka > 3, while limited differences exist at ka < 3. The axial torque on particles due to geometric asymmetry is closely related to ka and the eccentricity. The distribution of positive and negative force and torque along the axis ka exhibits that composite particle can be manipulated or separated by ultrasound. Our theoretical analysis can provide support for the acoustic manipulation, sorting, and targeting of inhomogeneous particles.

Welcome to SportsWorld: An Introduction to the 1970s

In 1975, New York Times sports columnist Robert Lipsyte published SportsWorld: An American Dreamland, a critical examination of how the values of American sports had become corrupted and distorted by power brokers who pulled the purse strings. “SportsWorld” was an infrastructure first built in the late nineteenth century by industrialists, educators, politicians, promoters, journalists, and military leaders who believed in the potency of sports and American exceptionalism. For the faithful, SportsWorld represented a positive cultural force that unified the nation, strengthened vigorous manhood, and advanced the country's democratic ideals of equal opportunity and fair play. “In sports,” Lipsyte reflected, Americans believed “children will learn courage and self-control, old people will find blissful nostalgia, and families will discover new ways to communicate among themselves. Immigrants will find shortcuts to recognition as Americans. Rich and poor, black and white, educated and unskilled, we will all find a unifying language. The melting pot may be a myth, but we will all come together in the ballpark.”

Investigating mechanical properties of 3D printed porous titanium scaffolds for bone tissue engineering

Objective. Three-dimensional (3D) printed porous titanium scaffolds serve as a bone tissue engineering technology that offers a promising solution for addressing bone defects. The scaffold’s pore structure offers structural support and facilitates the proliferation of bone cells. Therefore, investigating the aperture and pore shape is of crucial for the development of 3D printed porous titanium scaffolds. Methods. Ti6Al4V scaffolds with the specified structure were fabricated using selective laser melting (SLM) technology. The scaffolds comprised fifteen cylindrical models measuring 20 mm in diameter and 20 mm in height. These models featured five scaffold shapes: imitation diamond-60°, imitation diamond-90°, imitation diamond-120°, regular tetrahedron and regular hexahedron. Each of these structural shapes was characterized by three different aperture sizes (400 μm, 600 μm and 800 μm). The porosity and mechanical properties of Ti6Al4V scaffolds were examined. Results. The measured porosity of Ti6Al4V scaffolds varied between 56.50% and 95.28%. The porosity increased with the size of the aperture. The mechanical properties tests revealed that, for identical apertures, the compressive strength and torsional strength were influenced by the configuration of the unit structure. Furthermore, the positive and lateral compressive strength as well as torsional strength of various unit structures exhibited distinct advantages and disadvantages. Within a uniform unit structure shape, the compressive strength and torsional strength were found to be correlated with the size of apertures, indicating that larger apertures result in decreased compressive and torsional strength. Conclusion. The configuration of the aperture and the shape of the pore were identified as significant factors that influenced the compressive strength. The compressive strength of Ti6Al4V scaffolds with various unit structure shapes exhibited both advantages and disadvantages when subjected to positive, lateral, and torsional forces. The enlarged aperture augmented the scaffold’s porosity while diminishing its compressive and torsional strength.

The Influence of State Authenticity on the Sense of Meaning in Life of Middle School Students: Evidence from a Daily Diary Investigation and an Authenticity Enhancement Experiment.

Authenticity is a positive force for adolescent development. Taking middle school students as the main research objects, this paper examines the causal mechanism between state authenticity (SA) and sense of meaning in life through two studies: the diary method and authenticity level increase experiment. In study 1, through the daily diary data tracking investigation of 130 middle school students in daily life situations, the basic psychological needs (BPNs) and satisfaction with life (SWL) play a chain mediating role between state authenticity and sense of daily meaning in life. State authenticity has a one-way prediction effect on sense of meaning in life. In study 2, 140 participants were randomly divided into two groups (experimental group and control group). Middle school students in the experimental group were activated to recall the authenticity experience events to enhance the level of personal authenticity, and it was found that the subjects reported a higher sense of meaning in life. This study reveals the causal mechanism between authenticity and sense of meaning of life, which has positive practical significance for exploring ways to enhance the sense of meaning of life of middle school students.

The Dual Impact of Artificial Intelligence in Healthcare: Balancing Advancements with Ethical and Operational Challenges

The synchronic and diachronic study of the evolution of Artificial Intelligence (AI) unveils one prominent fact that its effect can be traced in almost all fields such as healthcare industry. The growth is perceived holistically in software, hardware implementation, or application in these various fields. As the title suggests, the review will highlight the impact of AI on healthcare possibly in all dimensions including precision medicine, diagnostics, drug development, automation of the process, etc., explicating whether AI is a blessing or a curse or both. With the availability of enough data and analysis to examine the topic at hand, however, its application is still functioning in quite early stages in many fields, the present work will endeavour to provide an answer to the question. This paper takes a close look at how AI is transforming areas such as diagnostics, precision medicine, and drug discovery, while also addressing some of the key ethical challenges it brings. Issues like patient privacy, safety, and the fairness of AI decisions are explored to understand whether AI in healthcare is a positive force, a potential risk, or perhaps both.

Sufism Revisited: A Comprehensive Analysis of Emha Ainun Najib’s Philosophical Contributions to Modern Society

This research explores the significant impact of modern Sufi teachings spearheaded by Emha Ainun Najib, or Cak Nun, on the members of Jamaah Maiyah in Indonesia. As a charismatic Muslim intellectual, Cak Nun introduces the concept of Tasawuf into the reality of modern life, emphasizing human values, tolerance, and local cultural heritage. The research employs a qualitative approach with a descriptive method, involving in-depth interviews with members and key figures of Jamaah Maiyah, as well as participatory observation of religious practices in various community activities, such as Pandang Bulan, Bang-bang Wetan, Kedirian, and Kenduri Cinta, held in 2023 in East Java, Indonesia. The findings highlight the positive reception of modern Sufi concepts by Jamaah Maiyah, connected to positive changes in religious practices and daily outlooks. The social and cultural impact manifests in attitudes of tolerance, social concern, and awareness of human values. Cak Nun’s teachings encourage members to engage in personal introspection and achieve a balance between the worldly pursuits and the spiritual endeavors. This research not only demonstrates the relevance of Tasawuf in the modern era but also identifies its contribution in shaping the character and perspectives of religious communities. These findings provide a profound understanding and insights into how modern Sufi teachings can act as a positive force in fostering positive attitudes and values in the contemporary society.

Mental health, positive psychology and leadership: a positive autoethnographic case study of Claude-Hélène Mayer

Purpose The purpose of this paper is to meet Dr Claude-Hélène Mayer, Professor in Industrial and Organisational Psychology at the University of Johannesburg, Johannesburg, South Africa. Design/methodology/approach This is a qualitative positive autoethnographic case study. Mayer uses positive autoethnography to reflect on mental health, positive psychology and leadership across the life span. The first author also responds to ten questions. Findings Leadership can be developed and appreciated in others. Leadership can be a positive and transformative force that can assist and contribute to mental health and well-being. Positive leadership can be supported by developing wisdom, creativity, critical thinking and conflict and emotional management. Research limitations/implications Qualitative research cannot be generalised. Positive autoethnography reflects the views and experiences of the author, in this case a transdisciplinary and transcultural researcher and practitioner. Practical implications Readers will find a range of practical recommendations as to how to develop mental health and leadership and stay positive in challenging times. Academic literature relating to practical recommendations is also shared. Social implications Positive leadership has many social implications. It can be a constructive influence that impacts our lives and benefits our personal development, but also one that impacts the lives and benefits the personal development of other people. Originality/value In this original paper, Dr Claude-Hélène Mayer shares mental health, positive psychology and leadership experiences and recommendations. Leadership skills are of particular value in times of complex change.

وسائل التواصل الاجتماعي والرأي العام في مجتمع تقوده الرأسمالية: دراسة لمسرحية إبسن (عدو الشعب)

The goal of this paper is to shed light on the effect of social media in shaping public opinion in communities that are ruled by capitalists, as represented by the Norwegian writer Henrik Ibsen in his “An Enemy of the People.” Through a profound reading of the play, this paper aims to reflect how those who have different opinions from those of the authorities are liable to persecution and oppression. The paper also investigates the ways through which the capitalists manipulate power and authority to shape public opinion through press/ social media to serve their purposes and interests. The present study concludes that capitalism exerts an obvious effect on people and reflects that the majority’s opinion is so absolute to the extent that any other opinion is intolerable. It also shows that people are affected by the capitalist nature of the society. Public opinions are manufactured according to the consent of the majority in the society. Social media plays a major role in creating opinions and nurturing them. Instead of being an altruistic, positive force, social media exposes itself as an authority purveyor of lies. It functions as a full-time patrol to persuade the people to succumb to the majority as the only refuge for a peaceful life. Therefore, any hope for a dignified life in a community where individual freedom and individuality are respected becomes a far-fetched pursuit.

Long range transport of South and East Asian anthropogenic aerosols counteracting Arctic warming

The large-scale convection during the Asian summer monsoon plays an important role in the rapid transport of boundary layer aerosols into the Asian summer monsoon anticyclone. Here, using the state-of-the-art ECHAM6–HAMMOZ aerosol-chemistry-climate model, we show that these aerosols are further transported to the Arctic along isentropic surfaces by the Brewer-Dobson-Circulation (BDC) during the monsoon season. Our model simulations show that East and South Asian anthropogenic emissions contribute significantly to the aerosol transported to the Arctic, which causes a higher negative net aerosol radiative forcing at the surface (dimming) of −0.09 ± 0.02 Wm−2 and −0.07 ± 0.02 Wm−2, respectively. Over the Arctic, the East Asian anthropogenic aerosols that include large amounts of sulfate cause a seasonal mean net radiative forcing at the top of the atmosphere (TOA) of −0.003 ± 0.001Wm−2 and a surface cooling of −0.56 K while the black carbon dominated aerosol from South Asia shows a positive TOA forcing of +0.004 ± 0.001Wm−2 with an only minor surface cooling of −0.043 K. Overall, the long-range transport of South Asian aerosols results in a notably warming throughout the atmospheric column but minimal temperature response at the Arctic surface. Conversely, East Asian aerosols cool the troposphere and heat the lower stratosphere in the Arctic. The Asian aerosol thus plays an ambivalent role, with the East Asian sources in particular having the potential to counteract the rapid rise in Arctic temperatures and the associated melting of snow and ice.

Bridging biochemistry and microengineering: glucose oxidation in microfluidic biofuel cells with carbon-MEMS and conductive polymers electrodes

Microfluidic biofuel cells are promising power sources for small-scale devices. Its construction is simple and requires low-cost materials. We report four glucose/O2 microfluidic enzymatic biofuel cells consisting in a double-Y-shaped microchannel and based on Carbon Micro Electro Mechanical Systems (C-MEMS) electrodes to test the composite poly(3,4-ethylene dioxythiophene)–poly(gallic acid) (PEDOT-PGAL) conducting polymer as an electroactive layer for enzyme immobilization. The following microfluidic enzymatic biofuel cells were microfabricated to compare their performances: 1) glucose/O2 using bioelectrodes, 2) glucose/O2 using glucose oxidase and Laccase, in solution, 3) glucose/hydrogen peroxide using bioelectrodes, and 4) glucose/hydrogen peroxide using glucose oxidase and horseradish peroxidase, in solution. The use of these two classes of materials, C-MEMS electrodes and conducting polymer inks, offers an advantageous interface for biomolecular electron transfer owing to the rich organic chemistry of the carbon interfaces. On the other hand, the conducting polymer PEDOT-PGAL acts as an electroactive layer for straightforward applications suitable for batch fabrication. All the studied cells presented positive electromotive forces and the discharge behavior of a fuel cell, yielding similar power densities. As expected, the cells that used enzymes in solution delivered higher power densities, but these values are dependent on the flow rate, while cells with immobilized enzymes present a more stable maximum power output. To our knowledge, this is the first report of an electrode system based on pyrolytic carbon/PEDOT-PGAL applied in a microfluidic enzymatic biofuel cell.

Symmetry Breaking of Three Self-Organization Rules: A General Theory for the Origin of Complexity

Complex spatiotemporal patterns in nature significantly challenge reductionism-based modern science. The lack of a paradigm beyond reductionism hinders our understanding of the emergence of complexity. The diversity of countless patterns undermines any notion of universal mechanisms. Here, however, we show that breaking the symmetry of three simple and self-organization rules gives rise to nearly all patterns in nature, such as a wide variety of Turing patterns, fractals, spiral, target and plane waves, as well as chaotic patterns. The symmetry breaking is rooted in the basic physical quantities, such as positive and negative forces, space, time and bounds. Besides reproducing the hallmarks of complexity, we discover some novel phenomena, such as abrupt percolation of Turing patterns, phase transition between fractals and chaos, chaotic edge in traveling waves, etc. Our asymmetric self-organization theory established a simple and unified framework for the origin of complexity in all fields, and unveiled a deep relationship between the first principles of physics and the complex world.

DIGITAL EDUCATION AT EUROPEAN HIGHER EDUCATION INSTITUTIONS DURING COVID-19 PANDEMIC

Objective. The objective of this study was to identify and interpret state-of-the-play of the implementation of digital education (DE) in higher education institutions (HEIs) in the field of library and information science (LIS) during COVID-19 pandemic. Approach/Methodology/Design. In order to collect data, a questionnaire-based survey was conducted. A survey for the study's target audience - the heads/directors of LIS schools/departments in Europe - was created and disseminated. The collected data were analyzed using the method of descriptive statistics. Results. The survey was completed by the heads/directors of 56 LIS schools/departments in 23 European countries. The results indicate that DE presents a positive disruptive force that transforms the teaching and learning process and widens access to education, especially in crisis situations. It also indicates that despite the need for emergency response, almost all aspects of DE were deliberately and successfully implemented in most of the LIS higher education institutions. Further analysis of core topic areas (through interviews and focus groups) will provide a deeper insight into teachers' and students' practices and their overall appraisal of DE during the pandemic. Limitations. Limitations include the methods used to collect data and the lack of clarity and understanding of certain terms and concepts by a small number of participants. Originality/value. This paper offers an in-depth understanding of the role of DE in crisis situations within the field of LIS. It underlines the necessity for consistent monitoring and evaluation of DE to guarantee its quality. Consequently, this paper may contribute to more effective policy and decision-making processes concerning DE. Moreover, it aims to help create frameworks and guidelines that facilitate simpler, more sustainable, and broader implementation of DE in LIS HEIs.

Pengajaran Bahasa Berdasarkan Teori Aktivitas Budaya Engeström: Integrasi Konteks Budaya dalam Pembelajaran Bahasa

This article presents a language teaching framework for understanding how human activities can be influenced by social and cultural contexts. This is because effective language teaching does not only understand the structure and vocabulary, but also understands the cultural context in which the language is used. To understand this, this research uses Engeström's 'Cultural Historical Activity Theory' with a qualitative descriptive analytical approach method, with several research steps, First: Identifying Data. Second: Collecting Data. Third: Analyzing Data. Fourth: Synthesis and Interpretation. For this reason, the aim of this research is to discuss the importance of cultural aspects in language teaching and how this approach can improve students' language skills and cultural understanding. The findings of this research indicate that Engeström's culturally-based activity theory can enhance communication skills through language teaching within cultural contexts. Consequently, students can serve as a positive force in fostering cross-cultural communication competence.

Ideological hope

ABSTRACT The hope for a better future can, and frequently does, motivate political action. Political hope is therefore often considered a positive force. However, not all forms of political hope are beneficial. Some scholars and activists claim that some kinds of hope also function as an ideology. I argue that we can give a precise meaning to the notion of ‘ideological hope,’ and I argue that to say of a given instance of hope that it is ‘ideological’ means more than that it is irrational or immoral. I distinguish two forms of ideological hope: forms where the ideological nature of hope derives from underlying ideological beliefs and judgments, and structural forms. The case of structurally ideological hope shows that even the rational hopes of political agents can undermine their purposes by binding them to distorted political self-understandings.

Optical properties and radiative forcing of carbonaceous aerosols in a valley city under persistent high temperature

Carbonaceous aerosols were collected in the valley city of Baoji city in Northern China in August 2022. The light absorption characteristics and influencing factors of black carbon (BC) and brown carbon (BrC) were analyzed, and their radiative forcing was estimated. The results showed that the light absorption of secondary brown carbon [AbsBrC,sec (370)] was 7.5 ± 2.4 Mm−1, which was 2.5 times that of primary brown carbon [AbsBrC,pri (370), 3.0 ± 1.2 Mm−1]. During the study period, the absorption Ångström exponent (AAE) of aerosol was 1.6, indicating that there was obvious secondary aerosol formation or carbonaceous aerosol aging in the valley city of Baoji. Except for secondary BrC (BrCsec), the light absorption coefficient (Abs) and mass absorption efficiency (MAE) of BC and primary BrC (BrCpri) during the persistent high temperature period (PHT) were higher than those during the normal temperature period (NT) and the precipitation period (PP), which indicated that the light absorption capacity of black carbon and primary brown carbon increased, while the light absorption capacity of secondary brown carbon decreased under persistent high temperature period. Secondary aerosols sulfide (SO42−), nitrate (NO3−) and secondary organic carbon (SOC) are important factors for promoting the light absorption enhancemen of BC and BrCpri and photobleaching of BrCsec during persistent high temperature period. The Principal Component Analysis-Multiple Linear Regression (PCA-MLR) model showed that traffic emissions was the most important source of pollution in Baoji City. Based on this, the secondary source accelerates the aging of BC and BrC, causing changes in light absorption. During PHT, the radiative forcing of BC and BrCpri were enhanced, while the radiative forcing of BrCsec was weakened, but the positive radiative forcing generated by them may aggravate the high-temperature disaster.

Despite mandated primary series, health care personnel still hesitant about COVID-19 vaccine and immunizing children

ImportanceHealthcare personnel (HCP) are important messengers for promoting vaccines, for both adults and children. Our investigation describes perceptions of fully vaccinated HCP about COVID-19 vaccine for themselves and primary series for their children. ObjectiveTo determine associations between sociodemographic, employment characteristics and perceptions of COVID-19 vaccines among HCP overall and the subset of HCP with children, who were all mandated to receive a COVID-19 vaccine, in a large US metropolitan region. DesignCross-sectional survey of fully vaccinated HCP from a large integrated health system. SettingParticipants were electronically enrolled within a multi-site NYS healthcare system from December 21, 2021, to January 21, 2022. ParticipantsOf 78,000 employees, approximately one-third accessed promotional emails; 6,537 employees started surveys and 4165 completed them. Immunocompromised HCP (self-reported) were excluded. Exposure(s) (for observational studies)We conducted a survey with measures including demographic variables, employment history, booster status, child vaccination status; vaccine recommendation, confidence, and knowledge. Main outcome(s) and measuresThe primary outcome was COVID-19 vaccine hesitancy for all dose types − primary series or booster doses − among HCP. ResultsFindings from 4,165 completed surveys indicated that almost 17.2 % of all HCP, including administrative and clinical staff, were hesitant or unsure about receiving a COVID-19 vaccine booster, despite the NYS recommendation to do so. Depending on age group, between 20 % and 40 % of HCP were hesitant about having their children vaccinated for COVID-19, regardless of clinical versus non-clinical duties. In multivariable regression analyses, lack of booster dose, unvaccinated children, females, income less than $50,000, and residence in Manhattan remained significantly associated with vaccine hesitancy. Conclusions and relevanceDespite mandated COVID-19 vaccination, a substantial proportion of HCP remained vaccine hesitant towards adult booster doses and pediatric COVID-19 vaccination. While provider recommendation has been the mainstay of combatting COVID-19 vaccine hesitancy, a gap exists between HCP—despite clinical or administrative status—and the ability to communicate the need for vaccination in a healthcare setting. While previous studies describe the HCP vaccine mandate as a positive force to overcome vaccine hesitancy, we have found that despite a mandate, there is still substantial COVID-19 vaccine hesitancy, misinformation, and reluctance to vaccinate children.

Extreme dry advection dominates the record-breaking Yangtze River heatwave in midsummer of 2022

The Yangtze River Valley (YRV) experienced an unprecedented heatwave in midsummer of 2022. Still, the detailed physical processes involved in the influence of abnormal large-scale atmospheric circulation on the heatwave remain unexplored. Here, we show that the positive meridional gradient of anomalous atmospheric moisture at the middle-lower troposphere and associated extreme dry air advection over the YRV are vital prerequisites for forming the 2022 YRV heatwave. The 2022 YRV heatwave is dominated by interannual variability, contributing 72.7% to the total temperature anomalies. Diagnosis of the surface heat budget equation indicates that the surface cloud radiative forcing is the most critical process in driving the 2022 YRV heatwave, which is dominated by the positive surface short-wave cloud radiative forcing associated with the suppressed precipitation and the middle-low clouds. The suppressed precipitation is induced by the vertical dynamical processes of anomalous moisture advection caused by the abnormal descending flows over the YRV, which are driven by the negative advection of anomalous latent heat energy by climatological meridional wind (anomalous dry air advection) according to the atmospheric moist static energy equation. Simulations from the Lagrangian model FLEXPART further indicate that the moisture anomaly over the north of YRV mainly originated from the surface evaporation in the YRV, implying that there is a positive land-air feedback during the life cycle of the YRV heatwave. Our study enriches the mechanism understanding of the 2022 YRV heatwave from the perspective of surface energy budget and land-air feedback.