Relation Contractive Selfmaps Involving Cauchy Sequences

We obtain two generalizations of a known theorem of A. Alam and M. Imdad (J. Fixed Point Theory Appl. 17 (2015) 693-702) showing that some standard proofs can be obtained involving only Cauchy sequences of the successive approximations. Suitable examples prove the effective generalization of our results in metric spaces not necessarily complete.

Determination of Relationships and Al ocation of Responsibilities——Taking the Adjudication of Household Service Contract Disputes as an Example

The combination of the realistic demand of urban families to raise children and provide for the aged and the employment demand of rural migrant workers will inevitably lead to the continuous growth of the market demand for household care services.The determination of the tripartite legal relationship between household workers,household service agencies,and families(individuals)is an important issue for the normative development of the household service industry.In specific judicial practice,local courts perform differently in the determination of the relationship between“household workers and household service agencies.”The application of law in relevant cases also often swings between the civil law and the labor law.The Civil Code of the People’s Republic of China(hereinafter“the Civil Code”)does not retain the concept of“employment relationship”used in the original Interpretation of the Supreme People’s Court on Several Issues Concerning the Application of Law in the Trial of Personal Injury Compensation Cases.Then,what is the relationship between household workers,household service agencies,and families(individuals)after the Civil Code came into force?This article shows the judicial dilemma currently faced by the household workers in the protection of labor rights and interests through an empirical analysis of the victim liability disputes of household workers and puts forward countermeasures and suggestions for improving the occupational injury protection mechanism of household workers in China through a comparative study of the occupational injury risk sharing mechanism of household workers and an analysis of the local exploration of the occupational injury protection system of flexible employees in China.

Psychological Contract within Labor Relation and Its Management Strategy

The paper argues that labor contracts between employees and organization includes two facets, i.e. economic contracts and psychological contracts, and along with enterprise competition becoming fierce increasingly and labor force becoming diversified all the more, the psychological contracts have crucial effects on employees＇ attitudes, behaviors and performances. We also argue that, under the challenging organization context, if managers want to make strategic partnership with employees, they must link employees with hearts, pay attention to the management of psychological contracts before, during and after signing labor contracts, and keep dynamic equilibrium of psychological contracts.

Progress billing method of accounting for long-term construction contracts

This article questions the reliability of the amount of revenue recognized in the percentage of completion （POC） method of revenue recognition in construction industry and recommends a new method based on the progress billing which is more reliable. The most commonly used method of revenue recognition in the construction industry is the percentage of completion method （POC）, where the revenue is recognized on the basis of the percentage of work completed. The calculation of percentage of work completed is made on the basis of the cost incurred for the contract work during the financial period and the cost required for completion of the work as estimated by the contractor. Here, the acceptance of the product by the buyer （contractee） is not involved in recognizing the revenue. The reliability of the amount of revenue and its collectability can be assured only when the buyer accepts the product. The approval of the progress bill by the contractee is needed to assure the reliability and collectability and it must be the event that triggers the recognition of revenue.

Diplomats On the Future of China-ASEAN Relations

In 2018, China and ASEAN celebrated the 15th anniversary of the China-ASEAN strategic partnership. Over the last 15 years, the two sides have cemented bilateral relations and stood shoulder-to-shoulder through thick and thin. The China-ASEAN Strategic Partnership Vision 2030 adopted by the 21st China-ASEAN Summit in November 2018 presented a new blueprint for the long-term growth of China-ASEAN relations in the new era. A goal has been set to build a closer community with a shared future.

A comparative study of pancreatic endocrine function and related metabolism after long-term survival between the patients with combined kidneypancreas transplantation vs those with combined en bloc ' liver-pancreas transplantation

Objective To compare the effects of combined en bloc liver - pancreas transplantation ( LPT) with portal vein drainage and simultaneous combined kidney - pancreas transplantation ( KPT) with systemic venous drainage on the pancreatic endocrine function and related me-

Clinical analysis of central venous catheter-related infections in patients in the emergency ICU

BACKGROUND:Catheter-related infection(CRI)of the central vein is a common cause of nosocomial infection.This study was undertaken to investigate the pathogen culturing and risk factors of CRI in emergency intensive care unit(EICU)in order to provide the beneficial reference.METHODS:From January 2008 to December 2010,a total of 1 363 patients were subjected to catheterization.In these patients,the peak CRI rate of the patients was determined by bacterial cultivation and blood bacterial cultivation.RESULTS:CRI happened in 147 of the 1 363 patients using the central venous catheter.The peak rate of CRI was 10.79%,with an incidence of 3.05 episodes per 1 000 catheter days.Of the147 patients,46.94%had gram-negative bacilli,40.14%had gram-positive cocci,and 12.92%had fungi.Unconditional logistic regression analysis suggests that multiple catheterization,femoral vein catheterization,the application of multicavity catheter,and the duration of catheterization were the independent risk factors for CRI.CONCLUSION:The risk factors for catheter-related infections should be controlled to prevent the occurrence of nosocomial infection.

Displacement behavior and mechanism of long-term water flooding in sandstone oil reservoirs

Sandstone oil reservoirs with huge bottom water and high permeability are generally developed with high flow rate.After long-term water flooding(LTWF),the water flooding characteristics are quite different from that of original reservoir.In this paper,the effects of the PV number,viscosity,and displacement rate during LTWF are studied through experiments.The mechanism is analyzed based on analysis of changes in oil composition,rock mineral composition and wettability.The oil-water relative permeability curves,oil recovery and wettability were obtained with new experiments methods,which avoids the oil metering error by measuring oil and water separately.The research indicates that when the viscosity increases,the water phase permeability decreases,the residual oil saturation increases,and the water content rate increases earlier.A higher water flooding rate results in a higher ultimate recovery.A higher asphaltene content results in a higher viscosity and more oil-wet reservoir conditions.After LTWF,the wettability tends to water-wet,which is more favorable for heavy oil recovery.Moreover,LTWF reduces the clay content,which creates a more water-wet surface and a larger reservoir pore throat environment.This research provides insightful characteristics of offshore sandstone oil reservoirs,which can be used to enhance oil recovery.

Experimental and numerical investigation for energy dissipation of supercritical flow in sudden contractions

Dealing with kinetic energy is one of the most important problems in hydraulic structures,and this energy can damage downstream structures.This study aims to study energy dissipation of supercritical water flow passing through a sudden contraction.The experiments were conducted on a sudden contraction with 15 cm width.A 30 cm wide flume was installed.The relative contraction ranged from 8.9 to 9.7,where relative contraction refers to the ratio of contraction width to initial flow depth.The Froude value in the investigation varied from 2 to 7.The contraction width of numerical simulation was 5~15 cm,the relative contraction was 8.9~12.42,and the Froude value ranged from 8.9~12.42.In order to simulate turbulence,the k-εRNG model was harnessed.The experimental and numerical results demonstrate that the energy dissipation increases with the increase of Froude value.Also,with the sudden contraction,the rate of relative depreciation of energy is increased due to the increase in backwater profile and downstream flow depth.The experimentation verifies the numerical results with a correlation coefficient of 0.99 and the root mean square error is 0.02.

劳动关系微分化视角下网约工劳动权益的法律保障

在算法技术与平台经济相得益彰共同推进数字经济向纵深方向发展的过程中,劳动关系日益呈现出微分化的演化趋势,使得以网约工为代表的新业态从业人员陷入了“身份不明确”的主体性危机与“权益保障难”的双重困境,不仅对传统的劳动从属基础性理论提出了新的挑战,而且也日益凸显现行法律制度供给不足的现状。基于网约工群体经济从属性、人格从属性与组织从属性微分化趋势之系统理论分析,科学审视与证成微分化视阈下具有劳动从属性的网约工“第三类劳动者”之身份,并将“内在经济与人格从属程度的差距均以外在劳动量的差别为表现形式”这一从属性微分化之核心作为识别与判定标准,对具有不同强度从属性的“第三类劳动者”给予不同程度的劳动法倾斜保护,希冀能平衡平台经济有序发展与网约工劳动权益合法保障之间的关系,为健全和完善我国劳动法律制度体系提供符合数字经济内在运行规律的科学立法选择。

契约法的当代风貌——内田贵《契约的时代》述评

麦克尼尔以“关系契约论”宣告了“古典契约论”的死亡,但其未能将关系契约论付诸实定法或具体司法实践。日本学者内田贵教授结合长期合同的具体运作,对关系契约论在日本裁判中的适用进行了体系化研究,呈现了司法判决、民众选择以及社会观念对日本民事立法的再造图景。我国《民法典》合同编中包含的诸多“标准”型规则明显体现了关系契约论的理念,但对其如何适用,我国学界与法院仍在探索之中。内田贵教授的研究方法与视角为我国将来的合同法研究提供了富有启发性的参照。

新的教育社会契约中的人文主义:传统、局限与超越

随着联合国教科文组织发布《一起重新构想我们的未来:为教育打造新的社会契约》以及联合国召开“教育变革峰会”,新的教育社会契约已成为当今全球教育治理的重要话语。它根植于人文主义传统,与联合国教科文组织此前的前瞻性教育报告一起,建构起与时俱进的人文主义教育思想体系。然而,当人文主义与西方个体理性的底层逻辑相结合时,无法解决个体利益争斗和有效的共同体建设等问题,阻碍了人文主义在全球教育治理中发挥出理想的效果。中华文明中的关系理性能够为新的教育社会契约的未来超越提供思路,培养具备“关系素养”的人来建立真实的“人类命运共同体”,这是中国对未来全球教育治理的可能贡献。

关联企业混同用工的法律规制研究

在劳动法中引入关联企业概念,目的是赋予裁判机构审查认定关联企业混同用工行为是否存在规避劳动法、损害劳动者权益的情形;适用法人格否认规则,目的是在个案裁判中将关联企业视为联合雇主,要求其共同向劳动者承担用人单位法律义务。劳动者与用人单位签订劳动合同后被安排至关联企业工作的,劳动关系的归属以合同为判断标准;关联企业采取轮流订立劳动合同的方式交替用工的,应当认定劳动者与后签订劳动合同的用人单位存在劳动关系;未签订劳动合同的,则应以实际用工为考察依据判定劳动关系的归属。

烂尾楼停贷纠纷中若干法律问题刍议——以19个司法裁判案例为样本

在烂尾楼停贷纠纷中,按揭购房者因开发商存在逾期交房的违约行为而拒绝向银行偿还贷款,该停贷行为面临合同相对性与公平原则的冲突,导致实践中出现同案不同判现象,其根源在于法律规则的缺失。按照现有司法解释,两合同纠纷在满足一定条件下才能合并审理,购房者不解除商品房买卖合同和担保贷款合同,其停贷行为一般不被支持。而停贷行为具有正当性,为保障购房者的合法权益,需要借鉴国外抗辩权延伸制度对我国立法进行完善。

客户集中度对民营企业高管激励契约的影响研究

利用2012—2017年A股民营上市公司数据,研究了客户集中度对高管激励契约的影响。实证分析表明,随着客户集中度的提高,高管的解雇业绩敏感性和薪酬业绩敏感性均下降。进一步的研究表明,企业风险承担随着客户集中度的提高而增加,低激励业绩敏感性是对风险厌恶的高管的补偿。分组回归表明,只有在地区信任度低、家族文化观念浓厚和商帮文化氛围浓厚的地区,高管解雇业绩敏感性才会随着客户集中度提高而降低,在地区信任度较高以及家族文化观念和商帮文化氛围较淡薄的地区,这一现象不复存在。而高管薪酬业绩敏感性与客户集中度的关系不受分组方式的影响,这一结论对进一步完善民营上市公司的内部治理结构有着重要的借鉴意义。

灵活用工下大学生兼职法律关系探究

我国灵活用工主要包括劳务合同用工、劳务派遣用工、非全日制用工三种形式,大学生参与灵活用工的比例显著增加。劳务合同用工下之大学生兼职主要是指大学生勤工助学。劳务派遣下大学生兼职存在诸多问题。劳务派遣公司不可以把实习大学生派遣到用工单位进行实习。学校、实习单位、学生三方必须以有关部门发布的实习协议示范文本为基础签订实习协议,明确各方的权利和义务。非全日制用工下之大学生兼职法律关系应适用劳动法保护。

工作积极性在低年资护士心理契约和逆境商间的中介作用

目的 探讨低年资护士的心理契约、工作积极性对其逆境商的影响,明确三者的关系模型。方法 采用便利抽样法,于2022年6—8月采用一般资料调查表、心理契约量表、逆境商量表与工作积极性量表对河南省郑州市2所三级甲等医院的226名低年资护士进行问卷调查。结果 低年资护士逆境商总得分为(133.27±39.35)分。Pearson相关分析结果显示,工作积极性与心理契约呈正相关(r=0.618,P<0.001),工作积极性与逆境商呈负相关(r=-0.575,P<0.001),心理契约与逆境商呈负相关(r=-0.529,P<0.001)。低年资护士工作积极性在心理契约和逆境商之间起部分中介作用,中介效应值占总效应的46.91%。结论 低年资护士逆境商处于中等水平,护理管理者可以通过采取有效措施来构建和维护低年资护士心理契约,增加工作积极性,以提高其逆境商水平。

职场孤独感与科研人员工匠精神:过犹不及还是每况愈下?

当前,学术界对职场孤独感的探讨主要关注其(潜在)消极后果,对如何正确看待和应对职场孤独感的研究还非常有限,对其缺乏全面、深入与准确的认识,特别是在其正向结果层面。本文以资源保存理论为研究基础,利用包括高校、科研院所和科技型企业研发部门在内的374份科研人员调研数据开展实证研究,探讨职场孤独感对科研人员工匠精神的影响及其作用机制。研究结果表明:职场孤独感对科研人员的工匠精神和职业生涯韧性均有倒U型影响,职业生涯韧性在职场孤独感和科研人员工匠精神的关系中起中介作用;关系型心理契约不仅正向调节职业生涯韧性和科研人员工匠精神之间关系,而且还正向调节职业生涯韧性在职场孤独感影响科研人员工匠精神关系中的中介作用。研究结论揭示了职场孤独感影响科研人员工匠精神的作用机制和边界条件,识别出职场孤独感的正向激励作用,具有较高的创新意义,并对从资源保存理论视角来理解职场孤独感如何正向影响工匠精神提供了有益参考。

Multi-Time-Scale Resource Allocation Based on Long-Term Contracts and Real-Time Rental Business Models for Shared Energy Storage Systems

The push for renewable energy emphasizes the need for energy storage systems(ESSs)to mitigate the unpre-dictability and variability of these sources,yet challenges such as high investment costs,sporadic utilization,and demand mismatch hinder their broader adoption.In response,shared energy storage systems(SESSs)offer a more cohesive and efficient use of ESS,providing more accessible and cost-effective energy storage solutions to overcome these obstacles.To enhance the profitability of SESSs,this paper designs a multi-time-scale resource allocation strategy based on long-term contracts and real-time rental business models.We initially construct a life cycle cost model for SESS and introduce a method to estimate the degradation costs of multiple battery groups by cycling numbers and depth of discharge within the SESS.Subsequently,we design various long-term contracts from both capacity and energy perspectives,establishing associated models and real-time rental models.Lastly,multi-time-scale resource allocation based on the decomposition of user demand is proposed.Numerical analysis validates that the business model based on long-term contracts excels over models operating solely in the real-time market in economic viability and user satisfaction,effectively reducing battery degradation,and leveraging the aggregation effect for SESS can generate an additional increase of 10.7%in net revenue.

面向多业务场景的区块链数据存证系统

针对区块链存证系统多需对不同业务场景的存证内容开发特定智能合约及对关系型数据存证操作不便的问题,提出了面向多业务场景的智能合约分层架构、设计模式及基于集合论的智能合约对关系型数据的操作方法。通过对不同智能合约间及智能合约同数据表间的解耦,提高了智能合约代码的可扩展性,并能有效支持以键值对数据库为底层存储的区块链对关系型数据库表及数据的存证操作,实现对已有政务业务数据的存证。实验结果表明,提出的存证方案具备可行性和有效性,并可大幅减少智能合约的开发工作量。