National security challenges and competition: US defense and space R&D in a strategic context

This paper addresses the evolution of the role of science and technology as a strategic national security advantage. From World War II and the Cold War to the present and projected future, this role has changed. Advances in digitized sensors, processors, storage, communications, and display have proliferated across the globe. The network connectivity enabled by this revolution has itself revolutionized almost all aspects of global life. The technology from which national security systems are derived is increasingly drawn from the vibrant, globalized industrial base that is the foundation of commercial and economic success. The desire for secrecy and technology control that is natural to the creation of national security capabilities is now in conflict with this globalized and open commercial marketplace. Contending pressures for cooperation among nations and the need to protect against misbehavior by some of those same nations makes managing national security technologies increasingly challenging.     

The social impacts of products: a review

Many agree that every product has economic, environmental, and social impacts on those who use and produce them. While environmental and economic impacts are well known and measures have been developed, our understanding of social impacts is still developing. While efforts have been made to identify social impacts, academics, and practitioners still disagree on which phenomena should be included, and few have focused on the impacts of products specifically compared with programs, policies, or other projects. The primary contribution of this review essay is to integrate scholarship from a wide array of social science and engineering disciplines that categorizes the social phenomena that are affected by products. Specifically, we identify social impacts and processes including population change, family, gender, education, stratification, employment, health and well-being, human rights, networks and communication, conflict and crime, and cultural identity/heritage. These categories are important because they can be used to inform academics and practitioners alike who are interested in creating products that generate positive social benefits for users.     

The production of science in Africa: an analysis of publications in the science disciplines, 2000–2015

The importance of science in Africa has been gaining the interest of scholars and policymakers alike who find that the relationship between science and development is getting stronger than ever. Science in Africa continues to find its own place in the global world of science. However, there have not been any attempts in recent years to study the production of science in all African countries taken as a whole. In this bibliometric study, science in Africa is analyzed using the publications African countries have produced in the last 15 years i.e. from 2000 to 2015. It is not only the number of publications but also the research areas which are of great importance. Not many recent studies have examined the publication productivity of all African countries. The analysis undertaken here shows that a few countries, namely, South Africa, Egypt, Tunisia, Nigeria and Algeria are the leading countries. These produced the highest number of publications during 2000–2015. At the same time, some of the weakest countries in Africa have strengths in specific research areas and are thus able to contribute to knowledge production in those areas. The findings presented in the paper suggest the implications for development in Africa and the measures which could be taken.     

Excessive SNS use at work,technological conflicts and employee performance: A social-cognitive-behavioral perspective

Pervasive Social Networking Site (SNS) access has deeply penetrated workers' daily life, inducing excessive usage that can lead to negative consequences. Despite the danger, few studies have examined the dark side of social media from the performance perspective of workers. This paper explores how excessive use of SNSs impacts work performance, considering the underlying mechanisms by using the cognitive-behavioral model and social-cognitive theory (SCT) as the foundations of the model. We propose that excessive usage of SNSs positively influences the cognitive emotional preoccupation and thereby leads to three types of conflicts: task conflict, process conflict, and relationship conflict (TPR conflicts). TPR conflicts, in turn, diminish the work performance. A sample of 386 Chinese SNS user responses were empirically tested to validate the proposed model, and our hypotheses were confirmed except for one: the results reveal that relationship conflict has no significant correlation to work performance. This study contributes to mitigating the destructive nature of social media by identifying its drivers and consequences, considering a comprehensive classification of SNS-related conflicts in the working environment. It also provides theoretical and important practical insights that help organizations to improve their workers’ performance.     

材料科学中的数理化与高新技术交叉

从材料科学角度了发，系统阐述了从工业生产到材料开发，从材料科学进步到新研究方法创立等问题，重点强调了材料中多学科交叉的前因后果和实施及理化测试的重要性等。     

Science and scientific collaboration in South Africa: apartheid and after

Scientific collaboration is growing in its importance; more so in Asian and African countries. This paper examines the scenario of science and scientific collaboration in South Africa which had passed through the colonial and apartheid regimes before it became a democracy in 1994. South African science under distinct political periods moved through some difficult periods but it did not badly affect the progress and direction of South African science. Science and scientific collaboration continued to grow under its major political phases amidst serious challenges. Despite internal conflict and boycott by the international scientific community, South Africa could move onto a stable and steady path of growth in science and collaboration under apartheid which is being carried on in the new South Africa. Collaborative research is encouraged at various levels of knowledge production and in science. The importance science and scientific development is gaining in today’s South Africa is remarkable.     

Scientometric indicators: peer-review,bibliometric methods and conflict of interests

The paper discusses the role of scientometric indicators in peer-review selection of research project proposals. An ex post facto evaluation was made of three calls for research project proposals in Slovenia: 2003 with a peer review system designed in a way that conflict of interest was not avoided effectively, 2005 with a sound international peer-review system with minimized conflict of interest influence but a limited number of reviewers, and 2008 with a combination of scientometric indicators and a sound international peer review with minimized conflict of interest influence. The hypothesis was that the three different peer review systems would have different correlations with the same set of scientometric indicators. In the last two decision-making systems (2005 and 2008) where conflict of interest was effectively avoided, we have a high percentage (65%) of projects that would have been selected in the call irrespective of the method (peer review or bibliometrics solely). In contrast, in the 2003 call there is a significantly smaller percentage (49%) of projects that would have been selected in the call irrespective of the method (peer review or bibliometrics solely). It was shown that while scientometric indicators can hardly replace the peer-review system as the ultimate decision-making and support system, they can reveal its weaknesses on one hand and on the other can verify peer-review scores and minimize conflict of interest if necessary.     

Male clasping ability,female polymorphism and sexual conflict: fine-scale elytral morphology as a sexually antagonistic adaptation in female diving beetles

During sexual conflict, males and females are expected to evolve traits and behaviours with a sexually antagonistic function. Recently, sexually antagonistic coevolution was proposed to occur between male and female diving beetles (Dytiscidae). Male diving beetles possess numerous suction cups on their forelegs whereas females commonly have rough structures on their elytra. These rough structures have been suggested to obstruct adhesion from male suction cups during mating attempts. However, some diving beetle species are dimorphic, where one female morph has a rough elytra and the other has a smooth elytra. Here, we used biomechanics to study the adhesive performance of male suction cups on the female morphs in two diving beetle species: Dytiscus lapponicus and Graphoderus zonatus. We compared adhesion on the rough and the smooth female morphs to infer the function of the rough elytral modifications. We found that the adhesive force on the rough structures was much lower than on other surfaces. These findings support the suggestion of sexual conflict in diving beetles and a sexually antagonistic function of the rough female structures. In addition, males differed in their adhesive capacity on different female surfaces, indicating a male trade-off between adhering to smooth and rough female morphs.     

Women,peace and security state-of-art: a bibliometric analysis in social sciences based on SCOPUS database

To the best of our knowledge, there is no work that has focused on analysing the development of the scientific production on women, peace and security. The main objective of this paper is to cover this research gap through a bibliometric analysis, that covers 95 years (1918–2013), of articles published in peer-reviewed journals extracted from the SCOPUS database. Bibliometric indicators and laws have been applied to better understand the patterns that govern the scientific literature on this realm. A gender perspective has also been implemented in the analysis. The analysis provides quantitative results based on 321 articles published by 478 authors in 210 scientific journals. The data showed the high dispersion of the literature, both in terms of authors and journals focused on the topic, and a low level of collaboration among both authors and institutions. Regarding the research topic, half of the papers were related to the impact of conflict on civilians and civil society. The implementation of a gender perspective shows that most of the first, second and third authors of the papers are women. In terms of methodologies, qualitative methodologies are the most relevant and women are more prolific applying these methodology. In terms of geographical region of the research, most of the studies have been performed by authors from institutions in Anglo-Saxon countries, and most of the fieldwork has been focused on the United States and the main areas of conflict in the world throughout history. Finally, important research opportunities are identified.     

Technikwissenschaften zwischen theoretischer Erkenntnis und Ingenieurtätigkeit

In no other scientific field is the conflict between theoretical knowledge and practice so intense as in engineering sciences. The characteristic feature of engineering sciences is that it can neither be classified as ?applied science” nor as a part of technology itself. The special position of technological knowledge and its evolution can be illustrated by the example of civil and mechanical engineering. Here special emphasis is given to the close relationship between science, technology and industry, as well as the development of independent research concepts in the engineering sciences.     

生物陶瓷的发展、应用与展望

改善人类的医疗保健系统，提高人类的生活质量已成为当今人类向自身提出的一个迫切要求。在此背景下产生了许多有关生命科学和生物工程科学的分枝学科，而生物材料科学则是重要的分枝之一。本文综述了生物陶瓷的发展过程，列举了生物陶瓷的典型应用实例，并预期生物陶瓷材料将向“半生命”的新型陶瓷材料方向发展。     

Artisanal culture in early modern Iberian and Atlantic worlds

For several decades, historians have realized the limitations of analysing the historical past of science as a mere succession of theories. One of the most stimulating messages that the reinvention of the discipline has launched is that although there are obvious intellectual elements that promote the development and progress of science, there are also social, economic, and institutional aspects to consider. The history of science is no longer just a history of scientific ideas and theories, but also a history of institutions, communities, spaces, objects, and practices as well as a history of the complex interaction among all these dimensions. Accompanying this new panorama is a broad consensus among scholars to accept that major social changes have inexorably some impact on scientific practice and vice versa. This premise, now widespread, is especially relevant to the history of early modern science and the question of its roots because it has allowed the introduction of new agents and spaces previously excluded from the domain of scientific development. In other words, this enriched perspective has multiplied both the processes of knowledge construction and the arenas in which these processes were undertaken. More specifically, historical research is no longer limited to spaces traditionally linked to the construction of science; it now embraces less orthodox ones. Within this broadened field of inquiry, practical knowledge and the objects of material culture have come to occupy a central place. This special issue explores how the new directions in which the history of science has expanded have a direct impact on the study of Iberian science in the Atlantic world.     

Nobel laureates: Their publication productivity,collaboration and authorship status

Summary The application of the measurement of scientific and technical activities has been a lengthy process of the appropriate metrics and the assignment of the standards and benchmarks for their usage. Although some studies have addressed issues of the management of science and technology and their relation to scientometrics and infometrics, there is nevertheless a need to consider the linkages between the conceptual background of scientific generation and progress - and the measurement of its process and outcomes. This paper first reviews the three main approaches to the generation and progress of human knowledge in general and scientific activity in particular. These approaches are reviewed in terms of the demands they would make on the measurement of scientific process and outputs. The paper then examines the currently used categories of metrics, and arrives at several conclusions. The paper provides an analysis of these conclusions and their implications to the generation and utilization of metrics of science and its outcomes. The review of the conceptual or philosophical foundations for the measurement of science offers an in-depth examination, resulting in the correlation of these foundations with the metrics we now use to measure science and its outcomes. The paper suggests research directions for a much needed link between theories of science and knowledge, and the application of metrics used to measure them. Finally, the paper offers several hypotheses and proposes potential empirical studies.     

Evaluation of pedestrian safety at intersections: A theoretical framework based on pedestrian-vehicle interaction patterns

Pedestrians are the most vulnerable road users, and pedestrian safety has become a major research focus in recent years. Regarding the quality and quantity issues with collision data, conflict analysis using surrogate safety measures has become a useful method to study pedestrian safety. However, given the inequality between pedestrians and vehicles in encounters and the multiple interactions between pedestrians and vehicles, it is insufficient to simply use the same indicator(s) or the same way to aggregate indicators for all conditions. In addition, behavioral factors cannot be neglected.To better use information extracted from trajectories for safety evaluation and pay more attention on effects of behavioral factors, this paper develops a more sophisticated framework for pedestrian conflict analysis that takes pedestrian-vehicle interactions into consideration. A concept of three interaction patterns has been proposed for the first time, namely ⿿hard interaction,⿿ ⿿no interaction,⿿ and ⿿soft-interaction.⿿ Interactions have been categorized under one of these patterns by analyzing profiles of speed and conflict indicators during the whole interactive processes. In this paper, a support vector machine (SVM) approach has been adopted to classify severity levels for a dataset including 1144 events extracted from three intersections in Shanghai, China, followed by an analysis of variable importance. The results revealed that different conflict indicators have different contributions to indicating the severity level under various interaction patterns. Therefore, it is recommended either to use specific conflict indicators or to use weighted indicator aggregation for each interaction pattern when evaluating pedestrian safety.The implementation has been carried out at the fourth crosswalk, and the results indicate that the proposed method can achieve a higher accuracy and better robustness than conventional methods. Furthermore, the method is helpful for better understanding underlying levels of safety from the behavioral perspective, which can also provide evidence for targeted traffic education on proper behaviors.     

Gravitational waves discovery,intellectual property and technology transfer

Gravitational waves were discovered in the USA on the 14th September 2015. The worldwide media have presented this as a significant achievement of scientific discovery. Detection of the waves was due to the development of accurate and sensitive scientific measurement instrumentation by an international collaboration of scientists. However, patents on the detection of gravitational waves are few. Technology transfer of intellectual property by science groups associated with gravitational waves research has been identified and has the potential of yielding important spinoffs now and in future years.     

Computer science research: more production,less productivity

It is commonly accepted that scientific research or, more precisely, the number of scientific publications, in computer science has greatly increased over the last few years. The reason would appear to be the pressure to publish, coined by the expression ”Publish or perish”, which is, among other things, necessary for promotions and applications for grants or projects. In this paper we have conducted a study that covers computer science publications from 1936 to 2010 in order to quantify this increase in publications regarding computing research. We have considered the computing conferences and journals available in the DBLP computer science bibliography (DBLP 2013) database, including more than 1.5 million papers, and more than 4 million authors (more than 900,000 different people), corresponding to about 1,000 different journals and 3,000 different conferences and workshops. Our study confirms and quantifies these increases with regard to the number of papers, number of authors, number of papers per author, etc. However, it also reaches a surprising conclusion: the real productivity of researchers has decreased throughout history. The reason for this decrease is the average number of authors per paper, which has grown significantly and is currently three.     

Simulation of safety: A review of the state of the art in road safety simulation modelling

Recent decades have seen considerable growth in computer capabilities, data collection technology and communication mediums. This growth has had considerable impact on our ability to replicate driver behaviour and understand the processes involved in failures in the traffic system. From time to time it is necessary to assess the level of development as a basis of determining how far we have come. This paper sets out to assess the state of the art in the use of computer models to simulate and assess the level of safety in existing and future traffic systems. It reviews developments in the area of road safety simulation models. In particular, it reviews computer models of driver and vehicle behaviour within a road context. It focuses on stochastic numerical models of traffic behaviour and how reliable these are in estimating levels of safety on the traffic network. Models of this type are commonly used in the assessment of traffic systems for capacity, delay and general performance. Adding safety to this assessment regime may allow more comprehensive assessment of future traffic systems. To date the models have focused primarily on vehicular traffic that is, cars and heavy vehicles. It has been shown that these models have potential in measuring the level of conflict on parts of the network and the measure of conflict correlated well with crash statistics. Interest in the prediction of crashes and crash severity is growing and new models are focusing on the continuum of general traffic conditions, conflict, severe conflict, crash and severe crashes. The paper also explores the general data types used to develop, calibrate and validate these models. Recent technological development in in-vehicle data collection, driver simulators and machine learning offers considerable potential for improving the behavioural base, rigour and application of road safety simulation models. The paper closes with some indication of areas of future development.     

Creative accomplishments in science: definition, theoretical considerations, examples from science history, and bibliometric findings

Science studies have not yet provided a conceptual scheme that distinguishes creative accomplishments from other research contributions. Likewise, there is no commonly agreed typology capturing all important manifestations of innovative science. This article takes up these two desiderata. We argue that scientific creativity springs from the fundamental tension between originality and scientific relevance. Based on this consideration, we introduce a conceptual scheme that singles out creative research accomplishments from other contributions in science. Furthermore, this paper shows that creative contributions are not only advances in theory but also new methods, new empirical phenomena, and the development of new research instrumentation. For illustrative purposes, the article introduces examples from science history and presents results from bibliometric studies.     

Prisoners, chickens, volunteers, free riders and suckers: dilemmason the Internet

The World Wide Web enables users to access a variety of multimedia resources distributed around the world. Its ease of use has attracted many new users to the Internet and the emergence of commercial Internet providers has facilitated this growth. Although most people welcome the breakdown of elitist access to the Internet, it has had an impact on the performance experienced by the individual user. `Game theory' is used to examine the conflict of self interest versus group interest within a shared network environment like the Internet