Discreet investors exert greater influence on cooperation in the public goods game

This paper studies the evolutionary process of cooperative behavior in a public goods game model with heterogeneous investment strategies in square lattices.In the proposed model,players are divided into defectors,cooperators and discreet investors.Among these,defectors do not participate in investing,discreet investors make heterogeneous investments based on the investment behavior and cooperation value of their neighbors,and cooperators invest equally in each neighbor.In real life,heterogeneous investment is often accompanied by time or economic costs.The discreet investors in this paper pay a certain price to obtain their neighbors'investment behavior and cooperation value,which quantifies the time and economic costs of the heterogeneous investment process.The results of Monte Carlo simulation experiments in this study show that discreet investors can effectively resist the invasion of the defectors,form a stable cooperative group and expand the cooperative advantage in evolution.However,when discreet investors pay too high a price,they lose their strategic advantage.The results in this paper help us understand the role of heterogeneous investment in promoting and maintaining human social cooperation.

曹伟云教授治疗Good’s综合征合并支气管扩张验案1例

Good’s综合征是一种免疫缺陷性疾病,属于少见病,关于本病的报道并不多,尤其是采用中药治疗的报道少之又少。Good’s综合征患者因免疫力欠佳,易合并感染,尤以合并支气管扩张伴感染偏多。目前,西医治疗多为对症治疗,急性期予抗生素控制感染,但患者病情易反复。本文主要从曹伟云教授对Good’s综合征合并支气管扩张病的中医病因病机和辨证论治等方面展开论述,认为Good’s综合征合并支气管扩张或因初感外邪、侵犯肺系,或因痰热日久、消耗阴液,或因久病体虚、伤及阴阳引起,在治疗上或予以清热散邪,或予以养阴清热、化痰排脓,或予以补阳养阴,同时根据伴随症进行药物加减,通过整体观念辨证论治,扶正与祛邪动态调整,尤以扶正为要,增强患者的免疫力,改善患者体质,迅速缓解患者临床症状,减少病情发作次数和患者住院次数。

The Violent Redemption Theme in A Good Man is Hard to Find

Flannery O’Connor is one of the representative figures of American Southern writers.Being recognized as the most outstanding writer of the American South after Faulkner,she has great influence in the literary world.Her works are always shrouded in a strange and grotesque atmosphere and full of death as well as religious metaphors.The protagonists are a series of American Southern freaks struggling with the crisis of spiritual belief.The protagonists of her novel A Good Man is Hard to Find are a hypocritical believer in the world of sinners and a lost man suffering in the midst of real sin,thus O’Connor uses the highest form of violence-death to bring ultimate redemption to them.In people’s conception,violence and redemption are often opposite to each other,but O’Connor uses bloody and violent plots to explore the theme of religious salvation,integrating and unifying the two contrary concepts to form her unique and profound violent redemption writing.

Convenience on Three Wheels China-made motor tricycles are transforming the way goods and people are transported in Uganda

In most cities,towns and villages in Uganda,Chinamade motor tricycles have become a game-changer for commuters and entrepreneurs alike.

Changes in the Supply of Public Intermediate Goods,Fixed Wage,and the Relative Price in the Harris-Todaro Model

Since the Harris-Todaro model was proposed in 1970,it has played a crucial role in analyzing various environmental and trade issues in developing countries.This paper analyzes the effects of the amount of public intermediate goods provided by the government,the increase in the fixed wage rate in the urban sector,and the changes in the relative international prices of agricultural and manufacturing goods on labor employment,unemployment,and the economic welfare in the context of a small open economy.It also proposes relevant policies to reduce the unemployment rate while improving national welfare.

The Struggle Between Good and Evil in Lord of the Flies

In the west,a viewpoint of evil human nature is accepted by most of critics.William Golding exposes this hideous nature in Lord of the Flies.This paper analyses the ugly human performances in details,and it also see the force about justice from the novel.The force is fighting with the evilness all the time.Although the justice is in a passive position temporarily,it finally defeats the evil.

Toward inclusive list-making for trade liberalization in environmental goods to reduce carbon emissions

The Asia-Pacific Economic Cooperation(APEC)is contemplating expanding its list of environmental goods(EG)for trade liberalization to fight climate change.In support of doing so,this study proposes that a long list that retains controversies is better for carbon emission reduction than a short common list.This study examines four mechanisms of longer lists:enlarging market scales,enriching product mixes,enhancing product sophistication,and enriching trade patterns.Using China’s emerging EG trade during the 2001-2015 period as a case study,this study compares four EG lists with different EG.The results show that:(1)a longer list reduces carbon emissions from both imports and exports,making domestic regions with different advantages have better chances of improving carbon efficiencies.(2)Product sophistication reduces the emission gap between trading partners,regardless of the length of EG lists.(3)China’s EG exports contribute to carbon reduction in leading regions,while EG imports provide laggard regions with better chances of reducing carbon emissions.These findings provide three implications for future list-making:it is important to(1)seek a long and inclusive list rather than a short common list,(2)shift the focus from environmental end-use to the technological contents of products,and(3)balance the demand of laggard regions to import and the capacity of leading regions to export.

Good and Evil Johannesburg,South Africa

The beautiful Swan Queen under the spell of the evil Magician is performed with passion and power in an exciting new version of the classic ballet Swan Lake. The performance is presented in a unique collaboration between Joburg Ballet of South Africa and the Liaoning Ballet of China. Swan Lake is part of the celebrations for the Year of China in South Africa taking place during 2015, that showcase the growing cooperation in China-South Africa cooperation.

Application of Dual-Energy X-Ray Image Detection of Dangerous Goods Based on YOLOv7

X-ray security equipment is currently a more commonly used dangerous goods detection tool, due to the increasing security work tasks, the use of target detection technology to assist security personnel to carry out work has become an inevitable trend. With the development of deep learning, object detection technology is becoming more and more mature, and object detection framework based on convolutional neural networks has been widely used in industrial, medical and military fields. In order to improve the efficiency of security staff, reduce the risk of dangerous goods missed detection. Based on the data collected in X-ray security equipment, this paper uses a method of inserting dangerous goods into an empty package to balance all kinds of dangerous goods data and expand the data set. The high-low energy images are combined using the high-low energy feature fusion method. Finally, the dangerous goods target detection technology based on the YOLOv7 model is used for model training. After the introduction of the above method, the detection accuracy is improved by 6% compared with the direct use of the original data set for detection, and the speed is 93FPS, which can meet the requirements of the online security system, greatly improve the work efficiency of security personnel, and eliminate the security risks caused by missed detection.

Discussion on the Supply of Child-friendly City Construction Based on the Attributes of Public Goods

Child friendliness is the need for a good life in the new era.The problems related to the construction of child-friendly cities were discussed from the perspective of the supply of public goods.Through literature research and summary,the basic concepts,construction factors,sources of supply goods,structure of the main supplies,and supply behavior of public goods supply in child-friendly cities were sorted out.Some effective suggestions were proposed,such as improving the resource conversion and integration ability of the main suppliers,establishing an effective incentive system,optimizing the structure of the main suppliers,improving multi-party collaborative efficiency,ensuring benefits for all parties,raising child-friendly awareness,innovating funding sources for projects,ensuring adequate funding supply,building urban supply system in accordance with local conditions,and ensuring the supply of public goods.

Strategy dominance mechanism of autonomous collaboration in unmanned swarm within the framework of public goods game

The key advantage of unmanned swarm operation is its autonomous cooperation. How to improve the proportion of cooperators is one of the key issues of autonomous collaboration in unmanned swarm operations. This work proposes a strategy dominance mechanism of autonomous collaboration in unmanned swarm within the framework of public goods game. It starts with the requirement analysis of autonomous collaboration in unmanned swarm;and an aspiration-driven multiplayer evolutionary game model is established based on the requirement. Then the average abundance function and strategy dominance condition of the model are constructed by theoretical derivation. Furthermore, the evolutionary mechanism of parameter adjustment in swarm cooperation is revealed via simulation,and the influences of the multiplication factor r, aspiration levelα, threshold m and other parameters on the strategy dominance conditions were simulated for both linear and threshold public goods games(PGGs) to determine the strategy dominance characteristics;Finally, deliberate proposals are suggested to provide a meaningful exploration in the actual control of unmanned swarm cooperation.

The g-Good-Neighbor Connectivity of Some Cartesian Product Graphs

The g-good-neighbor connectivity of G is a generalization of the concept of connectivity, which is just for, and an important parameter in measuring the fault tolerance and reliability of interconnection network. Many well-known networks can be constructed by the Cartesian products of some simple graphs. In this paper, we determine the g-good-neighbor connectivity of some Cartesian product graphs. We give the exact value of g-good-neighbor connectivity of the Cartesian product of two complete graphs and for , mesh for , cylindrical grid and torus for .

Study on good clinical practices among researchers in a tertiary healthcare institute in India

BACKGROUND Good clinical practice(GCP)is put in place to protect human participants in clinical trials as well as to ensure the quality of research.Non-adherence to these guidelines can produce research that may not meet the standards set by the scientific community.Therefore,it must be ensured that researchers are wellversed in the GCP.But not much is known about the knowledge and practices of the GCP in the medical colleges of North India.AIM To assess the knowledge and practices of researchers about GCP and analyze these with respect to the demographics of participants.METHODS This is a cross-sectional study.A self-structured questionnaire about GCP,after expert validations,was circulated among researchers,at a tertiary healthcare institute,All India Institute of Medical Sciences(AIIMS),Rishikesh.A total of 59 individuals,who were selected by universal sampling,participated in the study.All healthcare workers who have been investigators of Institutional Ethics Committee-approved research projects,except residents and faculty,and are still a part of the institute have been included in the study.The study was approved by the Institutional Ethics Committee of AIIMS,Rishikesh.We used descriptive analysis and the Chi-squared test to analyze data.P value<0.05 was considered significant.RESULTS Out of 59 participants,only 11(18.6%)were certified for GCP.Most of the participants(64.4%)had“Average”knowledge,33.9%had“Good”knowledge and 1.7%had“Poor”knowledge.Only 49%of participants had satisfactory practices related to GCP.There was a significant difference in the knowledge based on the current academic position for the items assessing knowledge of institutional review board(P=0.010),confidentiality&privacy(P=0.011),and participant safety&adverse events(P<0.001).There was also a significant difference in knowledge of research misconduct(P=0.024)and participant safety&adverse events(P=0.011)based on certification of GCP.There was a notable difference in the practices related to recruitment&retention on the basis of current academic position(P<0.001)and certification of GCP(P=0.023).We also observed a considerable difference between the knowledge and practices of GCP among the participants(P=0.013).CONCLUSION Participants have basic knowledge of GCP but show a lack thereof in certain domains of GCP.This can be addressed by holding training sessions focusing on these particular domains.

荀子“天生人成”的性恶论与康德的“根本恶”

“人之所生而有”的欲、知、辨、能等,作为“本始材朴”,既可能意味着人向善的原初禀赋,又可能指示了人趋恶的自然倾向。但若因此断定荀子既非性善论者也非性恶论者,而只能是持一种“中间状态”的性朴论者,却极易招致荀子丧失确定性和稳定性的危险。荀子的逻辑是,人生而具有某些天性,但这些天性究竟是善的还是恶的,却并不能归因于天,而只能是出于人自身的创造。若一个人无力创造,即无法“具”其“朴”“资”,那便是荀子所谓的“性恶”,康德称之为“根本恶”。至于人如何“具”,一方面,“俄而”间的“决”与“断”成为生死关头,另一方面,“长久”的“积”和“渐”又事关重大。前者涉及自由任性问题,后者必重圣王师法。以自由任性为基础,圣王师法也就跟权威专制或浪漫主义的人治遐想等清楚区别开来了,这有利于荀子思想的现代转化。

Research on Culture Goods and the Image of Mixed-blood in The Bluest Eye

The Bluest Eye is Toni Morrison’s maiden work,through which Morrison carried out independent thinking on the question of“What is beauty?”In The Bluest Eye,the image of mixed-blood is characterized as a self-satisfied beautiful girl or lady due to light skin color.However,Morrison shatters their proud aesthetic edifice through satirical techniques.Firstly,this paper starts with the analysis of Shirley Temple on the blue-and-white cup and Mary Jane on candy wrapper as culture goods,in order to reveal the aesthetic standards of the mainstream.Next,through close reading,this paper,taking the example of a high-yellow child Maureen Peal,and the graceful sugar-brown lady Geraldine,makes deep analysis on their sense of superiority and artistic characteristics,and aims to better understand Morrison’s satirical techniques and interpretation of beauty.

Pursuing the Distilled Good Practices to Improve the Quality of Environmental Impact Assessment Reports and Hence Enhance the EIA Effectiveness and Help Address the Concerns of Project Proponents:An Indian Context

Despite a wealth of literature on the different facets of the EIA,and copious theoretical knowledge and practical experience,the general agreement is eluding definitions of EIA effectiveness,quality,and good practices.There are apprehensions about EIA meeting its basic objectives while project proponents continue to treat EIA as an impediment to development.Governments tend to adopt a“practical”approach,sacrificing pillars of EIA and overlooking the prime objective of environmental protection.Based on an extensive literature study and the author’s long EIA-related experience,some key workable practices for the EIA process are elaborated.Meticulous scoping using different sets of lenses,spotlighting significant impacts to determine the breadth and depth of EIA reports for focussed EIAs,robust EIA review and decision-making,commitment from the regulators for environmental protection,and use of strategic planning,strategic environmental assessment,and tiering practices are expected to address scholars’apprehensions and project proponents’concerns.

以听力下降为主要表现的Good综合征1例

本文报道1例54岁女性Good综合征患者,因进行性听力下降伴反复发热入院。实验室检查提示血清免疫球蛋白水平低下、外周血B淋巴细胞数量减少、T淋巴细胞亚群比例异常,且伴有前纵隔占位。纵隔肿物穿刺病理提示:胸腺瘤B1型。结合症状、实验室检查及病理诊断支持Good综合征诊断。且该病例纯音测听符合双耳极重度感音神经性耳聋,结合听力下降的特点并排除其他继发性因素,考虑免疫介导性内耳病(IMIED)。确诊后患者未行胸腺瘤手术切除,不定期接受抗感染、免疫球蛋白输注等一系列综合治疗,听力损害无改善,2个月后听力损害进展至耳聋。确诊半年后患者死于严重播散性感染。

基于毒邪与络病学说探讨免疫炎症在慢性心力衰竭中作用

慢性心力衰竭(以下简称心衰),是各种心脏疾病的终末期阶段,其发病机制与免疫炎症密切相关。免疫细胞激活后,产生大量炎症因子,损伤心肌细胞,导致心肌纤维化、心室重构等病理改变。“毒损心络”是心衰发生、发展的主要病机,贯穿心衰发展的始终,以不同的形式影响心衰的发展及预后。该文通过查阅相关文献,基于毒邪与络病学说,从免疫炎症与心衰的关系及中药防治进行系统梳理,提出心衰早期,以心气虚为主,兼心气阴虚,尚未化毒、入络;心衰中期,心气亏虚为本,痰浊、瘀血、水饮留滞络脉,有化毒、入络趋势;心衰晚期,痰、瘀、水蕴结成毒,损伤心络。中药以复方治疗为主,多具有益气温阳、化瘀利水、解毒通络之功效,通过恢复M1/M2、Th1/Th2及Th17/Treg细胞之间的动态平衡,调节促炎/抗炎因子,从根本上祛除或缓解因毒邪产生的病理状态,减轻炎症,调整心之气血阴阳,达到扶正祛邪、保护心功能的作用,为临床防治心衰提供指导。

孔子“以直报怨”思想研究——兼论孔子是否反对“以德报怨”

据《论语·宪问》,孔子主张“以直报怨”,而对“以德报怨”则并未明确表示赞成或反对。通过考察《论语》中关于“直”、“怨”的各种论述,结合历代学者的相关观点,可以得出:“以直报怨”中的“直”,应该包含诚实、无私、符合通权达变原则的正直、等值、合乎礼的直率等丰富的含义;“以德报怨”的情况比较复杂,其中有的体现了人们不计前嫌、公而忘私的高尚品德,有的则反映了一些人的虚伪和充满私心的算计,因此,对于“以德报怨”,我们不能简单地予以肯定或否定;“以直报怨”既包含“以德报怨”中值得肯定或提倡的内容,又包含“以德报怨”中所没有的对怨恨对象采取相应报复措施的内容,因此是一种更为全面、合理的报怨方式。