科学与技术知识融合中的新近性与时域性作用研究

探究专利吸收科学与技术知识的时间属性特征及其对专利创新结果的影响,有助于提升对知识吸收中时间效应的理解。利用专利的引文时滞,采用新近性和时域性表征专利吸收知识的新近程度与时间跨度,基于1979—2013年申请的2,563,948项目标专利,6,693,213项引用专利与3,978,556篇引用论文,分析专利吸收科学与技术知识的新近性与时域性分布,并探究时间属性与专利影响力的不确定性之间的关系。结果表明,电子工程领域专利依赖于新近的科学与技术知识,而化学相关领域则依赖于时间跨度更大的科学知识;与企业相比,高等院校与政府机构倾向于利用更新和时间跨度更小的知识。广义负二项回归结果表明,高新近性的科学与技术知识、高时域性的技术知识会显著增加专利影响力的不确定性,而高时域性的科学知识会降低专利影响力的不确定性。

N+H=K认知理论体系、“知识—科学划界标准”与知识载体谱系

以人类的认知历史和所认知的内容为研究素材,从基础理论学的角度,进一步研究、完善N+H=K认知理论体系.分析、研究"知识"与"科学"这两个概念之间的联系与区别,构造了一个新的"知识载体谱系",即K_1,K_2,K_3,K_4.

“求解‘柯尔施问题’—论马克思学说跟哲学与科学的关系”——第二届广东青年哲学论坛举行

2004年4月9日第二届广东青年哲学论坛在广东技术师范学院举行。这次论坛由广东哲学学会、《学术研究》杂志社、《现代哲学》杂志社、广东技术师范学院联合主办。广东哲学界的青年学者20余人参加了论坛。论坛由中山大学哲学系的刘森林教授主持，广东技术师范学院副院长王培林教授做了致辞。

Effects of UV-B radiation on fitness related behaviors of the sea urchin Strongylocentrotus intermedius

Ozone depletion induced by anthropogenic gases has been increasing the transmission of solar ultraviolet-B radiation(UV-B, 280–315 nm) through the atmosphere, which may impact the fitness of marine invertebrates in intertidal and shallow waters. To our knowledge, however, the responses of fitness related behaviors to UV-B radiation at different intensities have been rarely studied in marine invertebrates. For the first time, the present study investigated the eff ects of exposure of one hour to UV-B radiation at different intensities on foraging behavior, Aristotle's lantern reflex and righting behavior of the sea urchin Strongylocentrotus intermedius. Exposure of one hour to UV-B radiation at 10 μW/cm^2 significantly reduced foraging behavior. An intensity dependent eff ect of exposure to UV-B radiation was found in the duration of the Aristotle's lantern reflex. Exposure to UV-B radiation at 20 μW/cm^2 for one hour significantly reduced the duration of the Aristotle's lantern reflex, but 10 μW/cm^2 did not. There was no significant diff erence of righting response time among sea urchins exposed to 0, 10 and 20 μW/cm^2 for one hour. To test potential carryover ef fects, the behavioral traits were re-measured three days later. We found significant carryover eff ects of UV-B radiation on foraging time and righting response time, but not on the duration of the Aristotle's lantern reflex. The present study indicates that a brief exposure of one hour to UV-B radiation can significantly aff ect the duration of Aristotle's lantern reflex, righting response time and foraging behavior of a sea urchin, although the immediate impacts and carryover eff ects were highly trait dependent. This study provides new information into the behavioral responses of marine invertebrates to exposure to UV-B radiation. Future studies should be carried out to investigate long-term carryover eff ects of UV-B radiation on behavioral and physiological fitness related traits.

Behavior of a Nonlinear Difference Equation xn＋1=1-2n/A＋∑k i=1xn-i

In this paper, we investigate the global behavior of the difference equation xn＋1=1-2n/A＋∑k i=1xn-iwith the A ∈ （-∞,-1） is a real number, k is a positive integer and the initial conditions x_k x0 ∈ （-∞, 0].

Kuhn＇s Notion of Theory Choice and the Dual-Process Theory of Cognition

In The Structure of Scientific Revolutions, Kuhn claimed that theory choice is a conversion experience and depends upon the personality or psychology of the individual scientist making the choice. Critics charged Kuhn with an irrational and a relativistic position concerning theory choice, arguing he advocated a subjective instead of an objective approach to how scientists choose one theory over another and thereby undercut epistemic accounts for the generation of scientific knowledge. In response to critics Kuhn insisted that his approach, although subjective, was still rational in that the criteria----vomposed of epistemic values--determining theory choice operate both objectively and subjectively. Recent work in cognitive neuropsychology, particularly in the dual-process theory of cognition, supports Kuhn＇s notion of theory choice. In this paper, I initially discuss Kuhn＇s approach to theory choice, along with criticism of it and his response to the criticism, followed by an examination of the dual-process theory of cognition. I then explore the application of dual-process theory to Kuhn＇s notion of theory choice, especially in terms of a historical case study from the biomedical sciences. I finally discuss briefly the implications of the dual-process theory for contemporary philosophy of science.

Beyond Logic of Discovery and Paradigmatic Consensus： A Reanalysis of the Popper-Kuhn Debate in the Philosophy of Science

There is no patina of doubt that the central philosophical theories of Karl Popper and Thomas Kuhn concerning the nature, substance and method for acquiring scientific knowledge constitute milestones in 20th century philosophy of science. Just as Popper＇s fundamental work on the subject, The Logic of Scientific Discovery, marked a decisive break with inductivist epistemologies, Kuhn＇s magnum opus, The Structure of Scientific Revolutions （1962, enlarged ed. 1970）, inaugurated the coming of age of the historical turn in the philosophy of science. Some scholars seem to consider the main doctrines of both philosophers as irreconcilables or contradictories. This explains why, for example Popper and Popperians such as Imre Lakatos and John Watkins describe themselves as ＂critical rationalists＂, whereas they refer to Kuhn as an ＂irrationalist＂ or ＂relativist＂-appellations that the latter has consistently rejected. The debate between Popper and Kuhn, especially as contained in an important work, Criticism and the Growth of Knowledge （1970）, highlights some of the knotty problems connected with philosophical appraisals of science. It also demonstrates the strengths and weaknesses of logistic approaches in the philosophy of science, on the one hand, and of historically informed socio-psychological analysis of science, on the other. In this paper, we reexamine the Popper-Kuhn controversy from an experimentalist perspective. In other words, we argue that the ideas of testing and normal science can be systematically accommodated by fine-structure dissection of empirical research through which scientists learn about the world, based on the assumption that the progress of science is the growth of experimental knowledge-a fact often neglected in theory-dominated philosophies of science. Taking discovery of the cosmic background radiation by Arno Penzias and Robert Wilson as example, the paper argues that important scientific discoveries have been accomplished even in the absence of theory in any obvious sense, a situation that conflicts with the theory-dominated models of Popper and Kuhn. Thus, it offers an account of how practicing scientists learn from research to control errors and avoid blind alleys. The paper affirms, in conclusion, that going beyond the theories of Popper and Kuhn requires that philosophers of science should take what scientists learn from experiments seriously when theorising about science, by taking into account normal testing or error detection and control strategies through which scientific knowledge is acquired and extended

Metacognition in Solving Process of Basic Electric Circuit ProblemmComparison of Metacognitive Characteristics between Non-major and Major Students in Electric Engineering

There are learners who cannot solve practical problems in spite of mastering basic scientific knowledge and formula necessary for the solution. One of the reasons might be attributed to the lack in metacognitive abilities. The aim of this study was to compare the metacognitive characteristics between non-major and major students in electric engineering and clarify the difference of metacognitive process between these two groups when solving basic problems of electronic circuit. In the experiment, the solving process was compared between non-major and major students in electric engineering using five basic problems. We found that the scores on prediction of result and confidence of own answer differed significantly between non-major and major students, and inferred that the difference of performance was due to the lack in metacognitive ability, especially the plan and the execution abilities. Both prediction of results and confidence of own answer were also found to play a significant role in effective problem solving as important components （subsystems） of metacognition.

Creationism and Evolution Views of Brazilian Teachers and Teachers-to-Be

This paper aims at assessing the evolutionist and creationist conceptions of Brazilian teachers. The work is developed within the framework of the European project BIOHEAD-CITIZEN （biology, health and environmental education for better citizenship）, which takes into account that scientific knowledge and teachers＇ attitudes and values can influence the teaching practices. The large questionnaire BIOHEAD-CITIZEN, which was constructed to be applied in 19 countries in Europe, Africa and Middle East countries, was applied, in this study, to six groups of Brazilian teachers： primary school teachers, biology teachers and Portuguese language teachers and corresponding teachers-to-be. For this paper the answers to questions about evolution were used as dependent variables. Descriptive and multivariate analyses were carried out. Biology teachers and biology teachers-to-be gave more importance to the natural selection and the evolution process than the other groups of teachers. Comparing to the BIOHEAD-CITIZEN countries, the total Brazilian sample showed a higher percentage of creationist conceptions, particularly the Brazilian biology teachers and teachers-to-be. As discussed herein, this may not be an obstacle for teaching evolution as they accept both creationist and evolutionist concomitantly.

When Prior Knowledge Helps： Self-Report of First-Year University Undergraduates on Academic Writing

This qualitative-dominant mixed study used content analysis, interviews, and survey to examine if first-year university undergraduates taking English language academic writing courses consider prior knowledge from high school English language five-paragraph essay writing style helpful. Sample included 67 first year university undergraduates. All the 67 students considered prior knowledge of the high school five-paragraph essay writing style helpful. They believed that it facilitated a transfer of learning in the first-year university undergraduate academic writing course. However, only 15 out of the respondents, who reported that prior knowledge of the high school English language five-paragraph essay writing style was helpful, also reported that they are level-appropriate competent in the first-year university undergraduate English language academic writing courses after one academic year. As such, essay-writing in high school offers students some foundation-knowledge to succeed in academic writing in universities. Further findings showed that students often delve into essay or academic writing without proper planning. Thus, it is recommended that universities introduce a bridge course specifically to address academic deficiency in reading and writing for all first year undergraduates upon admission into the university.

Philosophy of Science and Post-theoretical Life-World

Philosophy of science has arisen as alternative to epistemology, because scientific development wanted another kind of explanation than traditional epistemological one. The latter kind of explanation is theoretically loaded and based on latent ontological assumptions. Epistemology offers science a ＂road map＂ for researcher＇s thinking. Thus epistemology knows what science should be, and philosophy of science take science for granted--existing as an empirical fact. Philosophy of science had always been a reflective and critical discipline that didn＇t want any a-priory knowledge. The main distinction between these fields of knowledge is as follows： epistemology is theoretical and projective kind of knowledge whereas philosophy of science is a non-theoretical, or better, a ＂post-theoretical＂ discipline. All facts and statements arising from philosophy of science lie within the heterogeneous space, where there is continuous transit of pre-theoretical, theoretical and post-theoretical versions of knowledge. The inevitability of conservation and utilization of human thought products is recognized, which is supplemented by the need to study the impact of theoretical thinking upon social practices.

Natural Philosophy, Inventions and Religion in the Correspondence between John Locke and Nicolas Toinard （1678-1704）

The paper examines the copious correspondence between the English philosopher John Locke （1632-1704） and the French intellectual Nicolas Toinard （1629-1706）; Locke made the acquaintance of Toinard in Paris in 1677 or early in 1678, and the latter remained his lifelong friend and most assiduous correspondent. An Orl6anais and a devout Catholic, Toinard combined an intense interest in the Scriptures with an enthusiasm for experimental science and inventions of every kind; he introduced Locke to all the French official institutions and to a number of private laboratories. Toinard＇s principal work, Evangeliorum Harmonia Graeco-Latina, was greatly appreciated by Locke for its new method. The paper attempts at exploring the bulk of this correspondence in detail, giving an account of the wide range of topics dealt with in the two hundred letters; it is divided into four paragraphs referring, respectively, to the years 1678-1679, 1679-1681, 1681-1686, and1686-1704. The perspective is diachronic; in some occasions, the focus is on a peculiar topic which is the object of prolonged discussion between the two correspondents. In the conclusion, attention is drawn to the relevance of this correspondence in the context of the 17th century and of Locke＇s philosophical thought.

Natural Philosophy, Inventions and Religion in the Correspondence between John Locke and Nicolas Toinard （1678-1704）

The paper examines the copious correspondence between the English philosopher John Locke （1632-1704） and the French intellectual Nicolas Toinard （1629-1706）; Locke made the acquaintance of Toinard in Paris in 1677 or early in 1678, and the latter remained his lifelong friend and most assiduous correspondent. An Orleanais and a devout Catholic, Toinard combined an intense interest in the Scriptures with an enthusiasm for experimental science and inventions of every kind; he introduced Locke to all the French official institutions and to a number of private laboratories. Toinard＇s principal work, Evangeliorum Harmonia Graeco-Latina, was greatly appreciated by Locke for its new method. The paper attempts to explore the bulk of this correspondence in detail, giving an account of the wide range of topics dealt with in the two hundred letters; it is divided into four paragraphs referring, respectively, to the years 1678-1679, 1679-1681, 1681-1686, and1686-1704. The perspective is diachronic; on some occasions, the focus is on a particular topic which is the object of prolonged discussion between the two correspondents. In the conclusion, attention is drawn to the relevance of this correspondence in the context of the 17th century and of Locke＇s philosophical thought.

Multi-disciplinary Conceptual Design Knowledge of Multi-stage Hybrid Rocket Using Data Mining Technique

This paper deals with the application of data mining techniques to the conceptual design knowledge for a LV （launch vehicle） with a HRE （hybrid rocket engine）. This LV is a concept of the space transportation, which can deliver micro-satellite to the SSO （sun-synchronous orbit）. To design the higher performance LV with HRE, the optimum size of each component, such as an oxidizer tank containing liquid oxidizer, a combustion chamber containing solid fuel, a pressurizing tank and a nozzle, should be acquired. The Kriging based ANOVA （analysis of variance） and SOM （self-organizing map） are employed as data mining techniques for knowledge discovery. In this study, the paraffin （FT-0070） is used as a propellant of HRE. Then, the relationship among LV performances and design variables are investigated through the analysis and the visualization. To calculate the engine performance, the regression rate is computed based on an empirical expression. The design knowledge is extracted for the design knowledge of the multi-stage LV with HRE by analysis using ANOVA and SOM. As a result, the useful design knowledge on the present design problem is obtained to design HRE for space transportation.

Articulating China's Science and Technology:Knowledge Collaboration Networks Within and Beyond the Yangtze River Delta Megalopolis in China

In this paper, we reconsider the defining but often overlooked ‘hinge' function of megalopolises by analyzing how megalopolises have articulated national and international urban systems in the context of a globalizing knowledge economy. Taking the case of China's Yangtze River Delta(YRD) region, we particularly focus on knowledge circulation within and beyond the YRD region by analyzing the pattern and process of knowledge collaboration at different geographical scales during the 2004–2014 period. Results show that the structure of scientific knowledge collaboration as reflected by co-publications has been strongest at the national scale whereas that of technological knowledge collaboration as measured by co-patents has been strongest at the global scale. Despite this difference, the structure of both scientific and technological knowledge collaboration has been functionally polycentric at the megalopolitan scale but become less so at the national and global scales. The ‘globally connected but locally disconnected' pattern of Shanghai's external knowledge collaboration suggests that the gateway role of the YRD megalopolis in promoting knowledge collaboration at different geographical scales will take time before it is fully realized.

Impact of an active educational video game on children's motivation,science knowledge, and physical activity

Background： Active educational video games （AVGs） appear to have a positive effect on elementary school students＇ motivation leading to enhanced learning outcomes. The purpose of this study was to identify the effectiveness of an AVG on elementary school students＇ science knowledge learning, physical activity （PA） level, and interest-based motivation. Methods： In this randomized controlled study, 53 elementary school students were assigned to an experimental condition or a comparison condition. The experimental condition provided an AVG learning environment, whereas the comparison condition was based on sedentary educational video games. Results： The results of repeated measures analysis of variance （ANOVA） on the knowledge test showed that students in both groups performed better on the post-test than they did on the pre-test （p 〈 0.001, η2 = 0.486）, and their post-test scores did not differ significantly. The experimental condition provided a more active environment since the students＇ average heart rates （HRs） were in the Target-Heart-Rate-Zone （HR = 134 bpm）, which was significantly higher than the average HR （103 bpm） from the comparison condition （t = 7.212, p 〈 0.001）. Students in the experimental condition perceived a higher level of situational interest than their counterparts in the comparison group （p 〈 0.01, and η2 = 0.301）. Conclusion： These results suggest that AVGs benefit children more in terms of PA and motivation than traditional video games by providing an enjoyable learning experience and sufficient PA.

Four basic laws in design science

A point on the distinction between design and science is given and the connotanons of aeslgn science are discussed in the paper. Design should be understood as the first step of all human＇ s purposeful activity, which is a daily behavior for everyone. Four laws are summarized, which describe the basic patterns of design and are the constituents of design science. They are the law of design based on existed knowledge, law of in- completeness of design knowledge, law of design centered on new knowledge acquirement and law of competi- tiveness of design knowledge. The four basic laws show the knowledge essence of design. To enrich the existed knowledge, to make it convenient to be used, to teach designers with high intuition and inspiration in picking useful elements of existed knowledge and shaping competitive ideas and to have strong new knowledge acquire- ment facility are the basic conditions of good designs. Study of design science will promote the structure of tra- ditional engineering education. An important conclusion is derived that there will be no successful innovation without good design.

Visualization analysis of the research status of FU Qingzhu’s Obstetrics and Gynecology based on bibliometrics

Objective This study examined the research status and development process of FU Qingzhu’s Obstetrics and Gynecology(Fu Qing Zhu Nv Ke,《傅青主女科》,FQZNK)in the past 40 years with bibliometrics and visual analysis.Methods Retrieved all related literature in the research field of FQZNK from the domestic and foreign databases:China National Knowledge Infrastructure(CNKI),China Science and Technology Journal Database(VIP),Wanfang Database,and Web of Science(WOS)core database,including Science Citation Index Expanded(SCIE),Social Sciences Citation Index(SSCI),and Arts&Humanities Citation Index(A&HCI).The search range was from January 1,1980 to March 10,2021.In addition,bibliometrics and CiteSpace 5.7.R2 software were used to analyze literature types,published journals,cited literature,the number of author publica-tions,co-author networks,co-institution networks,keyword co-occurrence networks,keyword clusters,and keyword bursts.Results A total of 678 valid records were included in the final dataset.Literature types,high publication journals,highly cited literature,high-yield institutions,high-yield research teams,and high-productivity scholars in this research field were found through bibliometrics.Liter-ature types can be divided into four categories,among which 451 are theoretical studies on academic thoughts of FQZNK,accounting for 66.5%of the included journals.The Journal of Shanxi Traditional Chinese Medicine had the largest volume of published articles(61),ac-counting for 9.0%of the total number of the included journals.The most cited literature was ZHOU Mingxin’s article“Using the quantitative method to discuss author’s authenticity and formula characteristics of FU Qingzhu’s Obstetrics and Gynecology”,which was cited 94 times.Hunan University of Chinese Medicine,the institution with the most publications,published 45 articles,and YOU Zhaoling,the most published author,published 33 articles.Moreover,it was found that most high-yield researchers came from high-yield institutions and that Hun-an University of Chinese Medicine had the most research on FQZNK.Keyword co-occur-rence analysis revealed that the keyword“FQZNK”had the highest frequency(597 times)and the highest centrality(1.00).Keyword cluster analysis used the Log-Likelihood Ratio(LLR)al-gorithm to form eleven important clusters:#0 treatment aiming at its root causes,#1 gynecopathy,#2 Siwu Decoction(四物汤),#3 FU Qingzhu,#4 post-partum,#5 infertility,#6 dysmenorrhea,#7 sterility,#8 coordinate the heart and kidney,#9 Danggui Buxue Decoction(当归补血汤),and#10 treatment.It was found that the prescriptions of FQZNK were studied mainly before 2000,the theoretical studies were mainly conducted before 2010,and its clinic-al application was mainly explored from 2010 until now.Diseases such as dysmenorrhea,morbid vaginal discharge,infertility,metrorrhagia,and polycystic ovarian syndrome(PCOS)have recently become popular topics in this field.Conclusion The current study provides more scientific,accurate,and comprehensive sci-entific support for further research and development of traditional Chinese medicine(TCM)in FQZNK.With this foundation,people can use burst detection to ascertain the current hot-spots in research,get their development trends,and forecast future research directions.In ad-dition,infertility,morbid vaginal discharge,flooding,and PCOS treatments based on TCM syndrome differentiation are currently popular research topics for FQZNK.

Methane seepages in the northern South China Sea: evidence from in situ measurements

Continental margins in world oceans contain large amounts of marine gas hydrates. Changes in the temperature and pressure of sediment may destabilize the methane hydrate, leading to its release and seepage into the sea. This process would increase the dissolved methane in the ambient seawater. In this study, a methane sensor was used to detect methane anomalies in the water column in southwestern Dongsha and Shenhu, northern slope of the South China Sea. Methane plumes were detected at stations SCS001 and T001 in the southwestern Dongsha area, and station SCS002 in the Shenhu area, respectively. The maximum methane concentrations were 8.8 nmol/L in southwestern Dongsha and 10.1 nmol/L in Shenhu, which are about 4–5 times higher than the background methane concentration. This indicates that there are active methane seepages present in both the southwestern Dongsha and Shenhu areas, which are likely related to a methane hydrate reservoir beneath the seafloor. A methane sensor with a low detection limit is a practical instrument with which to detect methane plumes in oceanic environments and to monitor methane leakage from the seafloor.

Contribution of ecotourism to poverty alleviation in Nyanga,Zimbabwe

This paper assesses the contribution of ecotourism to local communities and the environment.Livelihoods of local communities are examined to understand the socioeconomic situation of people living in proximity to ecotourism areas and their participation in ecotourism activities. The impact of ecotourism on the environment in Nyanga is also examined. The paper employs both literature review(secondary data) and a field survey(primary data) to achieve these objectives. To gather socioeconomic data of households and tourist traits, questionnaires were administered to120 households and 30 tourists in the study area. Key informant interviews were held in the survey to gather expert knowledge about ecotourism trends and environmental data in the area.Data were analyzed using Statistical Package for Social Sciences. Descriptive and inferential analyses were used for quantitative data while content and structural-functional analyses were used for qualitative data. The research revealed that ecotourism offers the highest salaries when compared to other sources of formal employment. Ecotourism activities were shown to positively impact the environment through the protection, preservation, and management of natural resources. The study concludes that ecotourism is a useful and sustainable poverty alleviation strategy which has not yet been fully exploited in Zimbabwe.