试论南疆地区高校为地方社会发展服务职能的实现--以喀什大学为例

通过对高校服务职能的历史演进与界说的阐述,审视与探讨高校在地方社会发展中的地位与责任,并指出髙校在履行其社会责任过程中,为地方社会发展服务的方式与途径。在此基础上,以喀什大学为个案,分析新疆南疆地区高校为地方社会发展服务职能的实现。     

Parallelized ultra-high throughput microfluidic emulsifier for multiplex kinetic assays

Droplet-based microfluidic technologies are powerful tools for applications requiring high-throughput, for example, in biochemistry or material sciences. Several systems have been proposed for the high-throughput production of monodisperse emulsions by parallelizing multiple droplet makers. However, these systems have two main limitations: (1) they allow the use of only a single disperse phase; (2) they are based on multiple layer microfabrication techniques. We present here a pipette-and-play solution offering the possibility of manipulating simultaneously 10 different disperse phases on a single layer device. This system allows high-throughput emulsion production using aqueous flow rates of up to 26 ml/h (>110 000 drops/s) leading to emulsions with user-defined complex chemical composition. We demonstrate the multiplex capabilities of our system by measuring the kinetics of β-galactosidase in droplets using nine different concentrations of a fluorogenic substrate.     

The Great Transition of Scholarly Communication at the Thomas G. Carpenter Library

The library’s place in scholarly communication can be emphasized in many different ways. At the Thomas G. Carpenter Library at the University of North Florida (UNF), librarians have been able to preserve, organize, and promote community and academic resources very creatively. The UNF Digital Commons is used as a way to showcase faculty, staff, and university special collections and make them accessible to all users. Library space is also changing to invite faculty collaboration in areas previously devoted to print periodicals.     

Robust control for nonhomogeneous Markov jump processes: An application to DC motor device

This paper studies the problem of robust _H∞$H_{\infty }$ controller design for a class of uncertain Markov jump systems with time-varying transition probabilities, which follows nonhomogeneous jump processes. The time varying transition probability matrix is described as a polytope set. By Lyapunov function approach, under the designed controller, a sufficient condition is presented to ensure that the resulting closed-loop system is stochastically stable and that a prescribed _H∞$H_{\infty }$ performance index is satisfied. Finally, an application of a DC motor device is addressed to demonstrate the effectiveness of developed techniques.     

The changing role of school/media resource libraries in secondary schools in Singapore and the need to implement mandatory standards, 1946–2010: Issues, challenges and opportunities

The aim of this paper is to study the development and evolution of secondary school libraries into Media Resource Libraries (MRLs) in Singapore after the Second World War and the rationale to have mandatory school library standards. It is an historical survey analysing published data about the linkages of libraries and librarianship, school library standards, education and school reforms in Singapore. It analyses historical and current documents on the roles played by stakeholders like the Library Association of Singapore (LAS) and the Ministry of Education (MOE) in the introduction and development of school library standards. The need for school libraries standards was first discussed when the Malayan Library Group (MLG) organised the first course on librarianship for school teachers in 1955, but, with no follow through. The need for school libraries standards was also mentioned by the LAS in 1962 in a memorandum to the Commission of Enquiry into Education to train teacher librarians and adopt school library standards. However, this was left out in the final report of the Commission published in 1964. The need for school library standards was discussed in a school library seminar for 150 teacher librarians in 1970. The first Recommended Minimum Standards for Secondary School Libraries was published two years later by the Standing Committee on Libraries set up by the MOE, but it was not mandatory for schools to adopt the standards. In 1997 the MOE launched its “Thinking School Learning Nation” vision to teach thinking skills. Students were expected to do multidisciplinary project work and be independent users of information. The MOE began to convert school libraries into Media Resource Libraries (MRLs) with print and non-print materials. However, a survey conducted in 2001 on the roles and competencies of 112 Library Coordinators (LCs) or teacher librarians revealed that they lack the skills and knowledge to manage MRLs effectively. This is because subsequent school library standards published in 1983 and 2002 did not require trained and full-time teacher librarians to manage the MRLs. Furthermore, it is essential for the standards to be periodically updated with regards to professional staff, collection development, facilities, Information and Communications Technology (ICT) infrastructure and school library programs. Otherwise, MRLs risk being “hollow shells still considered on the periphery of core educational requirements, and are run by teachers not professionally prepared to do the work” (Hart, 2001, p. 25). The national standards published in the United States from 1918 to 2008 are well researched and provide substantive guidelines to develop school libraries. Therefore, it is essential for the MOE to formulate MRL standards by doing comparative studies of school library standards in other countries. These standards have to be mandatory and fully adopted by the schools. It provides opportunities for stakeholders like the LAS, National Library Board (NLB), the National Institute of Education (NIE), and the Singapore Teachers’ Union, to collaborate in the formulation of these standards and take collective ownership to implement them.     

图象中可见水印的误差控制

Different digital watermarking techniques and their applications are briefly reviewed.Solution to a practical problem with visible image marking is presented,together with experimental results and discussion.Main focusis on reduction of error caused by the mark addition and subtraction.Image classification based on its mean gray level and adjustment of out-of-range gray levels are implemented.     

Impact case studies: what accounts for the need for numbers in impact evaluation?

ABSTRACT

The UK Research Excellence Framework (REF) introduced impact as an indicator in the evaluation of higher education research quality in 2014. Impact case studies (ICS) are the basis of this evaluation. ICS use narrative explanations of how research causes ‘benefits to society’. This article analyses the evolving roles of the ICS and the relationships of ICS with various stakeholders. It draws on insights from legitimacy theory, Porter’s analysis of the social meaning of objectivity, and the insight from economist Alan Goodhart on the dysfunctional transformation of indicators into targets. It highlights the challenges to ICS evaluators and shows how a spiral of mistrust can both undermine but also cause demand for numbers. It explores whether impact narratives represent an escape from dominant research evaluation metrics and concludes that they do not.