The Belgian union catalogue of periodicals     

G. Goedeme  P. Goossens  F. Heymans 《Information processing & management》1976,12(3):161-164

The paper describes the edition, on computer output microfiche, of the supplement to the 1965 Union catalogue of foreign periodicals in Belgian and Luxemburgian libraries and documentation centers. The microfiches contain location information of 28,000 periodicals in 300 libraries and are edited in a rich typography. The paper discusses the coding of the bibliographic fields, the computer processing and formulates some forecasts for the near and further future.  相似文献   

Fluorescent probes: a new way to study lymphocyte activation     

Richard C. Nairn M.D.  Ph.D.  F.R.C.Path.  F.R.C.P.A.  F.R.A.C.P.  F.R.S.E.  Jennifer M. Rolland B.Sc.  Ph.D. 《Endeavour》1981,5(4):167-171

Fluorescent dyes can be used as cell probes which bind, according to their chemical structure, to particular subcellular regions of lymphocytes. Because of their sensitivity to variations in the local molecular environment, expressed by changes in fluorescence emission, they provide a means of studying the early events of lymphocyte activation to antigens and mitogens. The technology also yields a rapid assay of lymphocyte activation and thus new diagnostic tests of cell-mediated immunity, for example to organ transplants and to cancer.  相似文献   

Design and the management of multi-institutional research collaborations: Theoretical implications from two case studies     

Elizabeth A. Corley  P. Craig Boardman 《Research Policy》2006,35(7):975-993

Over the past three decades, U.S. science and technology funding agencies have increasingly supported large-scale, centralized, block grant-based research projects that often span multiple disciplines and institutions. This trend has developed at such a rate that research focused on understanding the management of these new collaborative models has largely not kept pace. We use two case studies of large-scale, multi-disciplinary collaborations to develop an institutional framework that illuminates the relationships among (a) the epistemic norms of the disciplines represented in the collaboration, (b) the organizational structure of these collaborations, and (c) the inter-institutional collaboration success.The results of our case study analysis demonstrate that large-scale, multi-discipline, inter-institutional collaborations need a relatively high level of development in either (1) the epistemic development of the disciplines involved in the collaboration or (2) the organizational structure of the collaboration. We argue that the domain (i.e. epistemic or organizational) that provides the highest level of institutionalization is the one that organizes the “rules” of the collaboration.  相似文献   

Study on arsenic level in public water supply of Delhi using hydride generator accessory coupled with atomic absorption spectrophotometer   总被引：1，自引：0，他引：1  

Sanjeev Lalwani  T. D. Dogra  D. N. Bhardwaj  R. K. Sharma  O. P. Murty 《Indian journal of clinical biochemistry : IJCB》2006,21(1):70-76

Exposure to arsenic has been associated with several health hazards. Worldwide the main reason for chronic human intoxication with arsenic is intake of contaminated drinking water. Air acetylene type of atomic absorption spectrophotometer in combination with hydride generator accessory was used to analyze arsenic level in 25 water samples collected from 25 booster pumping stations and 313 water samples collected from tap water supply of 62 areas of Delhi. Results were analyzed using SPSS and Barlett’s Chi Square Test. Mean arsenic level detected in water samples collected from booster pumping stations was 0.00976 ppm (Range 0.000–0.017 ppm, Standard Deviation 0.006 and Standard error of Mean 0.00118). Maximum arsenic level (0.017 ppm) was found in water samples of booster pumping stations of Mehrauli, Punjabi Bagh and Ramjas Road. Mean arsenic level detected in samples collected from tap water supply was 0.013 ppm (Range 0–0.0430 ppm, Standard Deviation 0.00911 and Standard error of Mean 0.000515). In water samples of 42 areas arsenic level detected was exceeding WHO/EPA permissible limit of 0.01 ppm (10 ppb). The mean arsenic level detected in water samples of booster pumping station was within WHO/EPA permissible limit while mean arsenic level detected in tap water samples was marginally higher. Mixing of ground water and contamination through broken or leaking channel could be the possible reason of higher arsenic level in tap water. Continuous monitoring of quality of drinking water is required particularly in view of water contamination caused by industrial waste and uncontrolled ground water extraction.  相似文献   

<Emphasis Type="Italic">Dis</Emphasis>closive Ethics and Information Technology: <Emphasis Type="Italic">Disclosing Facial Recognition Systems</Emphasis>     

Lucas?D.?IntronaEmail author 《Ethics and Information Technology》2005,7(2):75-86

This paper is an attempt to present disclosive ethics as a framework for computer and information ethics – in line with the suggestions by Brey, but also in quite a different manner. The potential of such an approach is demonstrated through a disclosive analysis of facial recognition systems. The paper argues that the politics of information technology is a particularly powerful politics since information technology is an opaque technology – i.e. relatively closed to scrutiny. It presents the design of technology as a process of closure in which design and use decisions become black-boxed and progressively enclosed in increasingly complex socio-technical networks. It further argues for a disclosive ethics that aims to disclose the nondisclosure of politics by claiming a place for ethics in every actual operation of power – as manifested in actual design and use decisions and practices. It also proposes that disclosive ethics would aim to trace and disclose the intentional and emerging enclosure of politics from the very minute technical detail through to social practices and complex social-technical networks. The paper then proceeds to do a disclosive analysis of facial recognition systems. This analysis discloses that seemingly trivial biases in recognition rates of FRSs can emerge as very significant political acts when these systems become used in practice. Paper prepared for the Technology and Ethics Workshop at Twente  相似文献   

Imagination and technoscientific innovations: governance of transgenic cows in New Zealand     

Bloomfield BP  Doolin B 《Social studies of science》2011,41(1):59-83

This paper examines a controversial research programme aimed at the production of transgenic cows in New Zealand. It emphasizes the contested representation of the research, in its promotion, in its governance, and in the opposition sparked amongst environmentallanti-genetic modification groups and within the Māori community. The paper contends that the case of New Zealand's genetically modified cows certainly reveals some unique features of the prevailing economic, geographical and cultural context, but nonetheless has salience for the broader understanding of the promotion, public reception and governance of genetic modification.  相似文献   

The use of colours on the the seventeenth century royal warship Vasa     

Tångeberg P 《Endeavour》2000,24(4):147-151

The seventeenth-century Swedish Royal warship Vasa was painted and decorated with almost 500 figure sculptures and many carved ornaments. It is probably the most extensive sculptural work in wood to have been preserved from this period in European history. The ship's decorations are of particular importance given the scarcity of knowledge of how sculptures in general, and large ships in particular, were painted in Northern Europe during this period. About 20 different pigments have been characterized and it has been possible to reconstruct the appearance of many of the sculptures and to extend this knowledge to the ship's original appearance.  相似文献   

Breast cancer in developing population: A nutrition caveat     

Garima Mehta  Seema Kothari  P. P. Singh 《Indian journal of clinical biochemistry : IJCB》2001,16(1):65-71

From January 1992-January 1998, 1404 patients attended the “Breast Clinic” of R.N.T. Medical College M.B. Hospital, Udaipur. Out of these, 11% and 81% patients had breast cancer (B.C.) and benign breast cancer (B.B.D.) respectively. The oxidative load in B.C. was 2.32 times higher than controls, but comparable to B.B.D. β-Carotene deficiency was uncommon in patients, whereas vitamin A deficiency was almost equally common in both B.C. and controls. Most of the patients had almost depleted levels of α-tocopherol and ascorbic acid but their TBAR levels were in normal range. The data in the present study when compared with B.B.D. and other local normal subjects point out: a) oxidative burden in B.C. is a consequence and not the cause of the disease, (b) oxidative stress could be one of the etiological factors in tumor expression, which need not to be malignant and c) α-tocopherol and ascorbic acid are not importantly responsible for higher oxidative burden in B.C.  相似文献   

An improved method for computing Hankel transform     

R.K. Pandey  O.P. Singh 《Journal of The Franklin Institute》2009,346(2):102-111

The purpose of this paper is to compute the Hankel transform F_n(y) of order n of a function f(x) and its inverse transform using rationalized Haar wavelets. The integrand is replaced by its wavelet decomposition. Thus representing F_n(y) as a Fourier-Bessel series with coefficients depending strongly on the local behavior of the function , thereby getting an efficient algorithm for their numerical evaluation. Numerical evaluations of test functions with known analytical Hankel transforms illustrate the proposed algorithm.  相似文献   

A preliminary report on the role of yoga asanas on oxidative stress in non-insulin dependent diabetes mellitus     

Savita Singh  Varun Malhotra  K. P. Singh  S. B. Sharma  S. V. Madhu  O. P. Tandon 《Indian journal of clinical biochemistry : IJCB》2001,16(2):216-220

Nineteen subjects of non-insulin dependent diabetes mellitus (NIDDM) between the age group of 30–60 yrs were studied to see the effect of specific yoga asanas on fasting and postprandial blood glucose (FBG, PPG), serum malondialdehyde (MDA) and glycosylated hemoglobin (HbA₁) in addition to drug treatment and diet control. The duration of diabetes ranged from 1–10 years. Patients with renal, cardiac and proliferative retinal diseases were excluded from the study. The same patients served as their own control. Subjects were called in the morning to the cardio-respiratory laboratory and were given training by a yoga expert. Yoga asanas included Suryanamskar, Tadasan, TriKonasan, Padmasan, Pranayam, Paschimottanasan, Ardhmatsyendrasan, Pavanmukthasan, Sarpasan and Shavasan. The asanas were done every day for 40 days for 30–40 min. FBG, PPG, serum MDA and HbA₁ were estimated before and after 40 days of yoga asanas regimen. Significant reduction was seen in FBG from 220 mg/dl to 162 mg/dl, PPG from 311 mg/dl to 255 mg/dl, MDA from 6 nmol/l to 3 nmol/l and HbA₁, from 8.8% to 6.4%. Subjects felt better and were relieved of their stresses and had an improvement in their day to day performance. The decrease was statistically significant (p<0.0001 for FBG and PPG, p<0.001 for MDA and for HbA₁).  相似文献