In this work, we investigated a covert communication method in wireless networks, which is realized by multiantenna full-duplex single relay. In the first stage, the source node sends covert messages to the relay, and the relay uses a single antenna to send interference signals to the adversary node to protect the covert information being transmitted. In the second stage, the relay decodes and forwards the covert information received in the first stage; at the same time, the relay uses zero-forcing beamforming (...) to send interference signals to the warden to ensure covert transmission. The detection error rate, transmission outage probability, maximum effective covert rate, and other performance indicators are derived in two stages, and the total performance of the system is derived and analyzed. Then, the performance indicators are verified and analyzed by simulation. Our analysis shows that the maximum effective covert rate of using the characteristics of multiantenna to interfere with Willie in the second stage is taken as the total covert performance of the system, and the transmission interruption probability is significantly less than that of the first stage, so the corresponding maximum effective concealment efficiency will be greater. (shrink)

The signals in numerous complex systems of engineering can be regarded as nonlinear parameter trend with noise which is identically distributed random signals or deterministic stationary chaotic signals. The commonly used methods for parameter estimation of nonlinear trend in signals are mainly based on least squares. It can cause inaccurate estimation results when the noise is complex. This paper proposes a calibration method for this issue in the case of single parameter via nonstationarity measure from the perspective of the stationarity (...) of residual sequence. Some numerical studies are conducted for validation. Results of numerical studies show that the proposed calibration method performs well for various models with different noise strengths and types and can significantly improve the accuracy of initial estimates obtained by least squares method. This is the first time that the nonstationarity measure is applied to the parameter calibration. All these results will be a guide for future studies of other parameter calibrations. (shrink)

Evidence suggests that participation in plaza dancing may affect mental health. This study for the first time quantified the relationships between plaza dancing and psychological well-being and ill-being. We systematically searched PubMed, Web of Science, CNKI, Wanfang, and VIP to identify relevant studies published from the databases since their inception to July 25, 2021. The standardized mean differences of pre-to-post intervention data were calculated in the meta-analysis. Subgroup and meta-regression analyses were performed to test the potential moderating effects of age, (...) outcome classification, measurement instruments, district, publication year, total sample size, and the duration, frequency, and length of the square dance intervention. A total of 25 original articles met all the eligibility criteria and were included in the review, and 17 studies were included in the meta-analysis. The meta-analysis revealed that plaza dancing improved psychological well-being and reduced psychological ill-being. The study participants’ age and district did not seem to affect the effectiveness of the plaza dancing intervention. The duration and frequency of plaza dancing affected the association between square dance and psychological well-being and psychological ill-being. Plaza dancing has a significant positive effect on psychological well-being and psychological ill-being, and the effects are moderated by intervention modality. Generalizing plaza dancing interventions to promote psychological well-being and prevent or treat psychological ill-being is needed.Systematic Review Registration[www.crd.york.ac.uk/prospero], identifier [CRD42021272016]. (shrink)

This dataset documents results and code for the paper "Interdisciplinarity in the 17th Century? A Co-Occurrence Analysis of Early Modern German Dissertation Titles" by Stefan Heßbrüggen-Walter, forthcoming in *Synthese*. The data to be processed are contained in four files, derived from a larger dataset related to German dissertations and sourced from the national bibliography of 17th century German prints *VD 17* that will be released at a later date. More information can be found in the file `README.md`.

The COVID-19 pandemic prompted immense work on the investigation of the SARS-CoV-2 virus. Rapid, accurate, and consistent interpretation of generated data is thereby of fundamental concern. Ontologies––structured, controlled, vocabularies––are designed to support consistency of interpretation, and thereby to prevent the development of data silos. This paper describes how ontologies are serving this purpose in the COVID-19 research domain, by following principles of the Open Biological and Biomedical Ontology (OBO) Foundry and by reusing existing ontologies such as the Infectious Disease Ontology (...) (IDO) Core, which provides terminological content common to investigations of all infectious diseases. We report here on the development of an IDO extension, the Virus Infectious Disease Ontology (VIDO), a reference ontology covering viral infectious diseases. We motivate term and definition choices, showcase reuse of terms from existing OBO ontologies, illustrate how ontological decisions were motivated by relevant life science research, and connect VIDO to the Coronavirus Infectious Disease Ontology (CIDO). We next use terms from these ontologies to annotate selections from life science research on SARS-CoV-2, highlighting how ontologies employing a common upper-level vocabulary may be seamlessly interwoven. Finally, we outline future work, including bacteria and fungus infectious disease reference ontologies currently under development, then cite uses of VIDO and CIDO in host-pathogen data analytics, electronic health record annotation, and ontology conflict-resolution projects. (shrink)

法律文化,是各民族、各国家和各地区法律善的整体表现,涉及法制建设和法律发展的整体水平,如立法、执法、司法和守法,以及法律教育、法律职业,民众的法律意识和法律观念等的发展状态。.

Shang ce. Ru xue yu si xiang -- xia ce. Qing dai xue shu si chao.

This study examines the personal values and value types of Chinese accounting practitioners and students, using the values survey questionnaire developed and validated by Schwartz (1992, Advances in Experimental Social Psychology 25, 1–65). A total of 454 accounting practitioners and 126 graduate accounting students participated in the study. The results show that Healthy, Family Security, Self-Respect, and Honoring of Parents and Elders are the top four values for both accounting practitioners and accounting students, although these values are not ranked in (...) the same order. Social Power, An Exciting Life, Devout, and Accepting My Portion in Life are the lowest rated four values for the accounting practitioners whereas Devout, An Exciting Life, Detachment, and Accepting My Portion in Life form the bottom four values for the accounting students. Both accounting practitioners and students ranked Security as the highest value type and Tradition as the lowest one, and the students rated Self-Direction as significantly more important than the practitioners. With respect to gender differences, both the male accounting practitioners and students rated the value type Achievement significantly higher than their female counterparts and there were several significant gender differences in personal values for both accounting practitioners and students. In addition, the perceived values are linked to social and cultural factors as well as to the influence of Western values. (shrink)

Safeguarding public interest was vital to early modern state legitimacy in Western Europe and East Asia. Wenkai He identifies similar patterns in state-society interactions surrounding public goods provision and explores how conflicts over public interest led to calls for fundamental political change and to modern representative politics.

We show that there is a $$ \varvec{\Sigma }_4^0$$ ideal such that it’s neither extendable to any $$ \varvec{\Pi }_3^0$$ ideal nor above the ideal $$ \textrm{Fin}\times \textrm{Fin} $$ in the sense of Katětov order, answering a question from M. Hrušák.

The COVID-19 pandemic prompted immense work on the investigation of the SARS-CoV-2 virus. Ontologies – structured, controlled, vocabularies – are designed to support consistency of interpretation, and thereby to prevent the development of data silos. This paper describes how ontologies are serving this purpose in the virus research domain, following the principles of the Open Biological and Biomedical Ontology (OBO) Foundry and drawing on the resources of the Infectious Disease Ontology (IDO) Core. We report the development of the Virus Infectious (...) Disease Ontology (VIDO), a reference ontology extending IDO Core covering viral infectious diseases. We examine newly minted terms, showcase ontology term reuse, and illustrate the use of VIDO by annotating selections from recent life science research on SAR-CoV-2, in the interest of supporting machine learning projects. (shrink)

何定生是顧頡剛在廣州中山大學任教時的學生，早年即已有文章收錄於《古史辨》中，而享有古史辨學者的光環。一九四九年隨國民政府來臺，任教於臺大中文系。生前出版有《詩經今論》一書，收錄三篇《詩經》研究論文，為 臺灣學界所仰重。一九七○去世後，其弟子何寄澎、曾志雄整理遺稿，出版《定生論學集──詩經與孔學研究》，收錄四篇論著。《何定生著作集》即在此二書的基礎上，復廣泛蒐求其論著、書信與相關資料，編為二冊。第一冊 為《何定生著作集一：詩經、孔學及其他》，第二冊為《何定生著作集二：尚書與文法》，雖尚未能將何氏著作網羅殆盡，但已足將何氏學術的主要面向及研究精華充分展現出來。 何定生深受五四以來新文化運動的影響，繼承顧頡剛及古史辨的學風，將此學風在戰後的臺灣學界持續發皇。何定生的學問主要表現在《詩經》，強調復古解放的精神，他呼籲今日的《詩經》研究，應從清學的漢學壁壘中出來， 以復於原始的樂歌地位。他認為惟有站在《儀禮》的樂歌地位來讀《詩經》，從人性的同類意識來接觸人性，才有碰到詩人靈感的可能。.

本书收录的16篇文章分为两个部分:第一部分属于哲学伦理学部分,包括政治哲学、应用伦理,也涉及到宗教与形而上学;第二部分是社会史部分,解释近三千年中国社会历史方面的初步探讨。.

Pró logo de Ana Marí a Gonzá lez Garza Tal como lo hizo Aristó teles con Nicó maco, o Savater con Amador, Hé ctor Sevilla ofrece un libro de é tica a Sofí a. No se trata de un conjunto de reglas para vivir de manera moral, sino de una invitació n a reflexionar con libertad. No se necesita ser Sofí a, ser mujer o transitar la adolescencia para encontrar provecho en las ideas vertidas en cada una de las cartas. (...) Valentí a, prudencia, cuidado de sí, solidaridad, desapego, resiliencia, gratitud y perseverancia, son solo algunos de los tó picos que se abordan con sencillez y soltura. Este cariñ oso legado pretende hablar en nombre de todos los padres, incluso de aquellos que han partido. (shrink)

本书收集的文章包括“人与社会的全面发展是和谐社会的本质”、“和谐社会的义利观”、“论人的物性与人的人性”、“坚持‘领导就是服务’的执政价值观”等。.

Driven by the use cases of PubChemRDF and SCAIView, we have developed a first community-based clinical trial ontology (CTO) by following the OBO Foundry principles. CTO uses the Basic Formal Ontology (BFO) as the top level ontology and reuses many terms from existing ontologies. CTO has also defined many clinical trial-specific terms. The general CTO design pattern is based on the PICO framework together with two applications. First, the PubChemRDF use case demonstrates how a drug Gleevec is linked to multiple (...) clinical trials investigating Gleevec’s related chemical compounds. Second, the SCAIView text mining engine shows how the use of CTO terms in its search algorithm can identify publications referring to COVID-19-related clinical trials. Future opportunities and challenges are discussed. (shrink)

Differential leadership as a localized leadership style gradually developed on the basis of the Pattern of Differential Sequence. It plays a dual role in stimulating “insider subordinates” and “outsider subordinates” through the dynamic transformation of the roles. Using the process of game reasoning, the study identifies the differing principles used by insider subordinates and outsider subordinates in implementing deviant innovative behaviors. The simulation graph presents the perceived benefits of employees performing or not performing deviant innovative behaviors as clues during the (...) reasoning process, and implements deviant innovative behaviors for the high risk-taking trait of insider subordinates and the high internal control personality of outsider subordinates who implement deviant innovation. The theoretical derivation of behavior provides relevant references, and provides counter measures for effectively promoting employees’ deviant innovative behavior in the context of differential leadership. (shrink)

The DAMA project is an observatory for rare processes and it is operative deep underground at the Gran Sasso National Laboratory of the I.N.F.N. In particular, the DAMA/LIBRA (Large sodium Iodide Bulk for RAre processes) set-up consists of highly radiopure NaI(Tl) detectors for a total sensitive exposed mass of ≃250 kg. Recent results, obtained by this set-up by exploiting the model independent annual modulation signature of Dark Matter (DM) particles, have confirmed and improved those obtained by the former DAMA/NaI experiment. (...) A model independent evidence for the presence of Dark Matter particles in the galactic halo is cumulatively obtained at 8.2 σ C.L. No systematics or side reactions able to account for the measured modulation amplitude and to contemporaneously satisfy all the many specific requirements of the signature have been found or suggested by anyone over more than a decade. An example of one of the many possible model dependent corollary quests for the candidate particles and for the related astrophysical, nuclear and particle physics scenarios is presented considering the whole cumulative exposure. Future perspectives are shortly addressed. (shrink)

The purpose of this paper is to investigate the changes in core self-evaluation scores among Chinese employees during 2010–2019. We conducted a cross-temporal meta-analysis including 50 studies to evaluate the relationship between the year of data collection and levels of CSE. We found that correlations between levels of CSE and year of data collection were strong and positive. Regression results showed that the year of data collection could predict the CSE score when the mean sample age and sex ratio were (...) controlled. In addition, CSE scores were positively related to GDP per capita and negatively related to the unemployment rate. (shrink)