共查询到20条相似文献，搜索用时 402 毫秒
1.
《Communication monographs》2012,79(4):420-426
In a world of collectives, the theatre which has always been a mass art, is one of the most simple and obvious organs of contact between the mass and the individual member of the crowd.1 It is the job of the new generation of workers in the Theatre by giving visible plastic expression to mass needs and hopes and despairs to convince the labor audience that the theater can become a great universal rallying point in this country as it is in Russia, or China.2 相似文献
2.
AbstractThe chemical and physical properties of AgelessR oxygen absorber, a commercial oxygen scavenger, are described. The active ingredient in Ageless is finely divided iron, but the key to its use as a practical method of removing oxygen is the method of preparation, additives and packaging. Criteria for museum use are put forward and certain problems, such as heat generation and hydrogen evolution, are discussed. 相似文献
3.
Abstract Based on user lookups, Merriam-Webster Onlineproclaimed “Blog” the word of the year for 2004.1 Distance librarianship, until mid-way through 2004, was a subject that was underrepresented in the blogosphere. The inception of a blog called The Distant Librarian: Comments on the World of Distance Librarianshipis chronicled in this article, along with suggestions for how and where to get started, as well as how to incorporate blogs that support library services for distance students. 相似文献
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5.
《Cataloging & classification quarterly》2013,51(1):183-205
ABSTRACT Many librarians question the usefulness of the traditional cataloging of difficult historic sets in a time when more and more information moves either to the Internet or is digitized outright. One of the most challenging sets to catalog is the United States Congressional Serial Set, a 14,000+ (and growing) mega serial comprised of five monographic sub-series. The Congressional Serial Set is an anomaly since it is both monographic and serial in nature. This article examines the intricacies in cataloging government publications in an electronic atmosphere using one House document in the Serial Set as a guide and examines the two commercial digitization projects currently underway.1 相似文献
6.
Fitzpatrick RB 《Medical reference services quarterly》2008,27(2):189-198
PEDro is produced by the Centre for Evidence-Based Physiotherapy (CEBP), located in Sydney, Australia. PEDro is intended to be used to gain "rapid access to bibliographic details and abstracts of randomized controlled trials, systematic reviews and evidence-based clinical practice guidelines in physiotherapy." This column will provide some background information on the database, as well as cover the basics of searching its content. 相似文献
7.
《文物保护研究》2013,58(4):228-238
AbstractA procedure for collection of decay rate data from stone samples exposed in actual environmental conditions is described. This provides precise weekly decay rate data. Data were collected for 16 consecutive months for 200-year-old weathered and freshly quarried Portland stone. Problems with the use of an acrylic sheet as a control were encountered and overcome. It is suggested that glass is a better control surface. Decay rates of new and old stone differed, with new stone typically being 60–70mg/m2/day. Close agreement was found between new stone replicates. Rates for old stones were much more variable and ranged from 90–270mg/m2/day. Differences were also found in the relative contributions of solution and particulate loss to total loss between the two stones. 相似文献
8.
《文物保护研究》2013,58(4):217-226
AbstractMany natural and synthetic products have been used for the consolidation of paint layers, but none have been thoroughly tested for this application. This is apparent for most of the synthetic and semi-synthetic adhesives for conservation, many of which are pure polymer resins and dispersions adapted from other industries. They were not specifically formulated with the appropriate properties for conservation, nor do they take advantage of some of the more recent developments in adhesive technology. BEVA® 371 is unique among adhesives used for consolidation treatments, as it is a multi-component mixture and was designed specifically for the conservation field using the best technology available at the time. However, the main focus of the research was its application as a lining adhesive. Thus, optical properties and stability, specifically color stability, were not thoroughly evaluated even though some lining applications that were first recommended could have benefited from this type of investigation. This paper will discuss the development of BEVA® 371, the chemistry, and roles of each component, and address a practical concern about the tack behavior of its replacement formulation, BEVA® 371b. 相似文献
9.
《文物保护研究》2013,58(2):61-70
AbstractAn application of holographic interferometry on a work of art under restoration is described. The artifact is a panel, a bronze bas-relief 80 × 80cm2 in size. Double exposure holograms and real time interferometric tests were recorded in a laboratory equipped with holography. These techniques have shown the kinetic behaviour of the artifact in response to a small thermal stress, simulating the larger deformation caused by the daily thermal variation in the natural environment. In this way, it has been demonstrated how temperature variations affect both particular parts of the object and its overall structure, acting in time as an agent of deterioration. 相似文献
10.
《The Reference Librarian》2013,54(67-68):131-146
Summary Student athletes' schedules can be very tightly structured around classes, homework, study, practice, and athletic events. As a result, they do not have the same freedom with their schedules as the average student. A library outreach program was developed at Valdosta State University to target the Department of Health, Physical Education and Athletics, and specifically the student athletes. The goals of this program are: (1) to provide the Department faculty and staff with a library contact or liaison, (2) to help student athletes learn to use the Library more effectively under pressure, thus relieving some of the stress they face with their demanding schedules, and (3) to make the library a less intimidating, more welcoming environment. The Library's outreach program is incorporated into the Department's NCAA CHAMPS (Challenging Athletes' Minds for Personal Success) program and includes tailored library instruction sessions. CHAMPS, as designed by the NCAA, does not currently include a library skills component.1 Library outreach may be defined as any activity or program such as tailored library instruction that is created “to meet the information needs of an unserved or inadequately served target group.”2 Outreach activities often focus on a specific user population such as high school students, off-campus students, international students, non-traditional students, and even faculty, and are often a method of promoting the use of the library.3 Providing outreach to student athletes is not well documented, however, there are a handful of universities with some type of outreach program to student athletes in place.4 相似文献
11.
Job B. Laine 《Communication Studies》2013,64(2):96-99
Some aspects of the format for the political joint debates held under the South Dakota Primary Law of 1920.1 相似文献
12.
《Legal Reference Services Quarterly》2013,32(3-4):27-40
ABSTRACT Questions about the importance and viability of legal research and writing as a part of the law school curriculum are not novel. Confronting these questions head-on, however, is a responsibility that should be handled by law librarians. This article addresses the issue of teaching legal research in an academic law library setting. The reasons why the author has pursued an aggressive approach when dealing with legal research instruction are explored. The methods employed to carry out that legal research instruction mandate are examined. creased as legal research and writing are more and more frequently combined and taught by writing faculty.1 At the same time, the research skills of law students are on a downward spiral. Howland and Lewis document this plunge in an informative survey.2 Law librarian Donald Dunn substantiates this decline and attributes it, in part, to “the increased emphasis in law schools on legal writing,”3 in consequence of which, while “legal writing entered the expressway; legal research took the off-ramp.”4 Further, law librarians and legal research have even been pummeled by one of America's most popular authors.5 In this environment, it may seem unwise to continue to advance the argument that academic law librarians should teach legal research. Notwithstanding the obstacles that face such instruction, law librarians have an obligation to press forward in this important work.6 Legal writing instructors have not demonstrated that they have the expertise to provide this instruc-tion.7 Likewise, law faculty have demonstrated that they do not have the interest in tackling the task.8 Say two authorities on the subject: “Regular faculty members generally do not teach a research course, and when they do decide to teach one, the results are invariably disastrous. Most law faculty members cannot teach legal research because they do not understand it themselves. If compelled to teach the course, they rebel.”9 Perhaps it is time for law schools to cede the stewardship for legal research instruction to those information professionals who have been trained and are qualified to teach legal research instruction -law librarians.10 And it is time for any reticent law librarians to accept the obligation to take a more proactive approach toward teaching legal research.11 相似文献
13.
《The Reference Librarian》2013,54(67-68):147-160
Summary Enhancing diversity programs and initiatives has been a challenge for higher education and academic libraries. Financial constraints at colleges and universities have made it essential to develop academic partnerships with other departments on campus to exchange ideas and combine resources. One academic diversity program, which has been around for approximately 30 years, is Minority Cultural Centers. Minority Cultural Centers provide an invaluable support service for minority students. This article provides background and current knowledge about Minority Cultural Centers and obstacles these centers face as we head into the 21st century. A sample proposal, outreach ideas and marketing strategies will help librarians get started into developing a long lasting relationship with Minority Cultural Centers. 相似文献
14.
《文物保护研究》2013,58(4):265-273
AbstractThis paper reports on the results of experiments to test for visual changes to paint systems after biocidal treatments, using a statistical binary procedure. Four biocides were selected, two of which are fungicides—a quaternary ammoniumorganotin mixture (BioMet 66®)in distilled water and an orthophenylphenol (Lysol®) in a spray— and two of which are fumigants—sulfuryl fluoride (SO2F6), a gas (Vikane®), and nitrogen gas (N2) (as an anoxant). The procedure used to assess the effect of the biocidal treatments was a random field visual scoring regimen by two paintings conservators. The tests were conducted on 30 combinations of linen, rabbitskin glue size, lead white oil ground and oil-based paints. The visual assessment procedure provided information on color change, gloss change, blanching, topography change and precipitation. The results indicated that Vikane adversely affected 10 of 11 pigment systems; Lysol adversely affected six of 11 pigment systems; BioMet 66 had a minor effect on four of 11 pigment systems; and nitrogen had no visible effect on any sample. The visual technique provided a quick and broad method for assessment of non-subtile visual changes. 相似文献
15.
《文物保护研究》2013,58(3):179-190
AbstractTesting of chemical stabilization treatments and desiccated and anoxic storage microclimates for the protection of archaeological iron stored in unsuitable climatic conditions was carried out by the conservation department of the Japanese Institute of Anatolian Archaeology at the Kaman-Kalehöyük excavation in Turkey. The chemical stabilization treatments involved alkaline sulfite, barium hydroxide and sodium hydroxide. Environmental stabilization was explored using RP-A oxygen scavengers in Escal® bags as part of the Revolutionary Preservation System (RP System®) manufactured by Mitsubishi Gas Chemical Company, Inc. The efficiency of the chemical treatments was examined by comparison with mechanically cleaned iron objects. The efficiency of the storage systems was determined by comparing the chemically and non-chemically treated objects in the RP System® using RP-A scavengers and in polyethylene ziplock bags containing silica gel. The efficiency of these treatments and storage systems was examined and assessed at Kaman after a period ranging from 7 to 9 years. The anoxic and desiccating properties of the RP System® resulted in superior protective qualities over polyethylene bags with silica gel. The RP System® compensated for inadequate chemical stabilization and protected iron that had not been chemically stabilized. 相似文献
16.
Rocchio's similarity-based Relevance feedback algorithm, one of the most important query reformation methods in information retrieval, is essentially an adaptive supervised learning algorithm from examples. In spite of its popularity in various applications there is little rigorous analysis of its learning complexity in literature. In this paper we show that in the binary vector space model, if the initial query vector is 0, then for any of the four typical similarities (inner product, dice coefficient, cosine coefficient, and Jaccard coefficient), Rocchio's similarity-based relevance feedback algorithm makes at least n mistakes when used to search for a collection of documents represented by a monotone disjunction of at most k relevant features (or terms) over the n-dimensional binary vector space {0, 1}
n
. When an arbitrary initial query vector in {0, 1}
n
is used, it makes at least (n + k – 3)/2 mistakes to search for the same collection of documents. The linear lower bounds are independent of the choices of the threshold and coefficients that the algorithm may use in updating its query vector and making its classification. 相似文献
17.
AbstractDisoloured and pure smalt were investigated by means of X-ray diffraction, electron microscopy and reflectance spectroscopy. It was found that the discolouration of smalt could not be explained in terms of devitrification or recrystallisation. Electron micrographs of replicas show a distinctly attacked grain surface with residues of organic material. Ultramicrotome thin sections of discoloured grains illustrate that an unaltered core is embedded in a material no longer showing the conchoidal fracture and presumably consisting of an organo-metal compound.The reflectance spectrum of discoloured smalt gives evidence that the cobalt ion is in sixfold (octahedral) co-ordination rather than in fourfold (tetrahedral) co-ordination, while the characteristic blue colour of unaltered smalt depends on the purely tetrahedral co-ordination of cobalt.It is therefore concluded that the discolouration reaction may be started by the catalytic influence of cobalt on the oil medium but that eventually the grain surface itself is attacked,involving the oxidation of Co2+ to Co3+ and a change of co-ordination of the cobalt ions. The reaction proceeds from the grain boundary to the centre and may leave, at an intermediate stage of the process, an unaltered smalt core within the otherwise discoloured grain. 相似文献
18.
《期刊图书馆员》2013,64(3):105-114
ABSTRACT The ISSN ISO standard (ISO 3297) is under revision. The ISO Working Group established to prepare this revision (ISO/TC46/SC9/WG5) includes representatives of the various communities interested in publishing, distributing, accessing, and identifying serials and other continuing resources. ISO/TC46/SC9/WG5 has developed revisions to the standard and additional proposals and recommendations that should result in some very positive and exciting changes for ISSN users and the ISSN Network. This paper focuses on the most important changes that will be brought about by this revision: changes in ISSN scope, clarification of the ISSN assignment policy, development of a new concept and function-the “collocating issn”1-and development of an ISSN link data distribution and look-up service.2 The paper briefly mentions the use of ISSN in conjunction with DOIs, OpenURL, and URN, and concludes with a discussion of the place and role of ISSN users in the ISSN standard revision process and in the ISSN system. 相似文献
19.
《文物保护研究》2013,58(4):161-169
AbstractA very moderate, non-destructive radioactivation of oil paintings, induced by thermal neutron bombardment, such that approximately only one in 1012 of the atoms comprising any painting is transformed into a radioactive species, has been found to produce temporary radioactivity sufficient to expose photographic film placed in direct contact with the paintings.The resulting autoradiographs resemble conventional X-radiographs in that they reveal structural details in depth of both the painting and its support. Since the radioactivities arising from the different elements within a painting decay in different manners and at different rates, a series of significantly distinct auto radiographs can be obtained of any painting by making exposures through appropriate filters and at varying times following the original activation. Analysis of such a series of autoradiographs permits the identification of a number of the pigments used in a painting, together with information about the manner in which they were originally laid down by the artist and their distribution throughout the body of the painting.Preliminary investigations have shown that the stability of oil paintings is unaffected by the activation procedure. The inherently necessary radiation dose absorbed by a painting as a result of activation sufficient for autoradiography is of the order of 50 rads. Paintings subjected to absorbed doses one hundred times as great as the dose necessary for autoradiography exhibit no changes in color, hardness, flexibility and solubility three years after their original activation. 相似文献
20.
《Cataloging & classification quarterly》2013,51(4):7-13
ABSTRACT The author presents the results of the December 1998 CONSER “Survey on Providing Access to Serial Titles within Aggregator Databases.” Major findings include 71% of respondents desiring to see full-text serial titles incorporated into the online catalog and nearly 75% interested in acquiring record sets. Also included are an analysis of the numerous survey comments received, strategies toward creating the necessary records and integrating them into OPACs, examples of aggregator analytic records, and other background information on the work of the Program for Cooperative Cataloging's Task Group on Journals in Aggregator Databases.1 相似文献