Type

Database

Creator

Date

Thumbnail

Search results

206,483 records were found.

Objective: To determine the effects of plant extract, nicotine and caffeine on the activities of the liver metabolizing-enzyme induced by pentobarbitone. Materials and Method: Seven groups of mice were pretreated with high doses of sample extracts (0.4 mg/g body weight sample extract, but nicotine at 0.1 mg/g body weight) and one control group was pretreated with saline. On day 5, pentobarbitone (0.005 ml of 8 mg/ml) was administered and the sleeping time was determined. The test was repeated but at low doses (0.1 mg/g body weight sample extract, but nicotine at 0.05mg/g body weight). Results: At high doses, bitter gourd, 'tempeh', nicotine, caffeine, nicotine+bitter gourd, nicotine+'tempeh' and nicotine+caffeine induced the activities of liver metabolizing enzyme significantly compared to control. At low doses, bitter gourd, nicotine,...
There is really no such thing as science - science is merely systematised, institutionalised common sense.
(1) Universities need to adopt a self-archiving policy -- an extension of their existing "publish or perish" policy to "publish with maximal impact". A potential model for such a policy can be found at http://www.ecs.soton.ac.uk/~harnad/Temp/archpolnew.html along with (free) software for creating a standardized online university CV, linking all entries for peer-reviewed articles to their full text self-archived in the university eprint archives: http://paracite.eprints.org/cgi-bin/rae_front.cgi (2) University libraries need to help with the first wave of self-archiving, doing "proxy" self-archiving for those researchers who feel too old, tired, or busy to do the few keystrokes per paper that are involved. http://www.ecs.soton.ac.uk/~harnad/Tp/resolution.htm#7.3 (3) Research funding agencies such as NSF and NIH need to encourage ...
The current practice of password based security for distributed systems in general and the Internet in particular is inadequate. Besides, remembering a plethora of long passwords and pass phrases sometimes as many as 15 or 20 is cumbersome .This raises the need to introduce a better and more reliable authentication mechanism which is not dependent on a series of characters, but rather on a technology that is unique and only possessed by the individual. Similar services already exist, and they are good in some situations, but prove to be inadequate under other circumstances. Overall, three main requirements of the everyday Internet user remain unaddressed – freedom from memorizing many passwords and pass phrases; convenience and ease of use; and security. The present paper attempts to offer an answer to all these problems by just one s...
Molecular self-assembly presents a `bottom-up' approach to the fabrication of objects specified with nanometre precision. DNA molecular structures and intermolecular interactions are particularly amenable to the design and synthesis of complex molecular objects. We report the design and observation of two-dimensional crystalline forms of DNA that self-assemble from synthetic DNA double-crossover molecules. Intermolecular interactions between the structural units are programmed by the design of `sticky ends' that associate according to Watson-Crick complementarity, enabling us to create specific periodic patterns on the nanometre scale. The patterned crystals have been visualized by atomic force microscopy.
Consists of two tables. Table 1: includes "Specific Laws on Access to Information or Documents" in Member States; Table 2: includes "Regulation of the Right of Access to Documents" in Member States.
The excavation described here forms part of a larger project, directed by the authors, entitled Neolithic land- and seascapes in Guernsey, 5500-2500 BC, which aims to investigate changes in settlement, landscape occupation and environment over the course of three millennia. In doing so, we also hope to situate the impressive and well-known monumental evidence on the island in its broader landscape context and shed light on the initial introduction of Neolithic practices there. This detailed regional study will ultimately make a significant contribution to understandings of the Mesolithic-Neolithic transition in north-western Europe in general, and the mechanisms by which Neolithic practices spread into western France and then across the Channel to Britain in particular (Figure 1).
(1) Universities need to adopt a self-archiving policy -- an extension of their existing "publish or perish" policy to "publish with maximal impact". A potential model for such a policy can be found at http://www.ecs.soton.ac.uk/~harnad/Temp/archpolnew.html along with (free) software for creating a standardized online university CV, linking all entries for peer-reviewed articles to their full text self-archived in the university eprint archives: http://paracite.eprints.org/cgi-bin/rae_front.cgi (2) University libraries need to help with the first wave of self-archiving, doing "proxy" self-archiving for those researchers who feel too old, tired, or busy to do the few keystrokes per paper that are involved. http://www.ecs.soton.ac.uk/~harnad/Tp/resolution.htm#7.3 (3) Research funding agencies such as NSF and NIH need to encourage self-ar...
Want to know more?If you want to know more about this cutting edge product, or schedule a demonstration on your own organisation, please feel free to contact us or read the available documentation at http://www.keep.pt/produtos/retrievo/?lang=en