Summary Serum laminin P1 was studied in patients with small cell lung cancer (SCLC), non-small cell lung cancer (NSCLC), respiratory infections, pulmonary fibrosis, and in normal subjects. The level of serum laminin P1 was elevated (> 1.27 U ml-') in 58.9 % of SCLC and in 11.5 % of NSCLC patients. Median value in SCLC was significantly higher than that in NSCLC (P<0.01), respiratory infection (P<0.01), and in normal subjects (P<0.01), but not statistically different from that in pulmonary fibrosis. The levels of serum laminin P1 in SCLC were related to therapeutic response. However, no certain correlation was established between the level of laminin P1 and the clinical stage of SCLC. Laminin is a major non-collagenous glycoprotein found in basement membranes. It has a cross-shaped structure and can be degraded by protease into several fragments. Laminin P1 is one such fragment and is chemically a pepsin-resistant soluble peptide with a molecular weight of about 200000 DA. A sensitive radioimmunoassay for the laminin P1 fragment has been developed (Risteli et al., 1981), and it has been shown that laminin has complete cross-reactivity with

The study of the web as a graph is not only fascinating in its own right, but also yields valuable insight into web algorithms for crawling, searching and community discovery, and the sociological phenomena which characterize its evolution. We report on experiments on local and global properties

We explore the usefulness of patent citations as a measure of the “importance ” of a firm’s patents, as indicated by the stock market valuation of the firm’s intangible stock of knowledge. Using patents and citations for 1963–1995, we estimate Tobin’s q equations on the ratios of R&D to assets

diligmic,gori¢ Maintaining currency of search engine indices by exhaustive crawling is rapidly becoming impossible due to the increasing size and dynamic content of the web. Focused crawlers aim to search only the subset of the web related to a specific category, and offer a potential solution

integrated with other RF frond-end circuits. Computer simulations and measurements have indicated that it can effectively cover WLAN operation bandwidth with circular polarization and the gain of the proposed antenna can meet the requirements of indoor wireless applications.

, questionnaires, and interviews indicate that the miniature and radar displays are useful and valuable for tasks involving spatial manipulation of artifacts.

Mutagenesis is an inexhaustible source of new indications and properties of plants. In modem selection it is of certain importance as a method of creation of valuable initial material. A wide changeability spectrum that was obtained as a result of influence of different mutagenic factors

for providing us with updated versions of the tables from Gordon (1999), Michael Harper for valuable assistance with data from the Bureau of Labor Statistics, and Kevin Stiroh for several useful conversations about the results in Jorgenson and Stiroh (2000). The views expressed are those of the authors

ABSTRACT We present an initial study examining the benefits of incorporating readability indicators in social network-related tasks. In order to do so, we introduce TweetRead, a readability assessment tool specifically designed for Twitter and use it to inform the hashtag prediction process

compromised host operating systems. Within the window, system administrators have this valuable information for intrusion diagnosis and recovery. Our implementation, called S4, combines log-structuring with journal-based metadata to minimize the performance costs of comprehensive versioning. Experiments show