In a previous study, we found that some O serotypes of Serratia marcescens, as defined by agglutination tests, were not based on lipopolysaccharide (LPS) O antigens. We developed a dot enzyme immunoassay with a high degree of LPS specificity and tested 104 distinct clinical strains. Only 7 of the 24 existing O antigens were found in more than one strain: O12/O14 (30.8% of strains examined), O21...

The aim of the paper is to investigate the process of spatial agglomeration of innovation and production activities and to assess the extent to which the degree of specialisation or diversity externalities in the area may affect the innovative output in a particular local industry. The analysis is carried out thanks to an original databank on innovation and production activity across 85 industr...

The genetic relatedness of 223 invasive Escherichia coli strains that cause either meningitis or urosepsis without meningitis in young infants was determined by multilocus sequence typing (MLST), ribotyping, and phylogenetic polymerase chain reaction grouping. We also determined the serotypes and virulence genotypes (on the basis of 11 virulence genes). The strains belonged to 29 sequence type ...

Fujita, Krugman and Venables (FKV) develop a model in which international wage differentials encourage industrial mobility because the advantages provided by strong inputoutput linkages within high cost countries are offset by the benefits of locating in low wage economies. In this paper we argue that globalization has another important dimension. Shocks may originate in a single country but, w...

We investigate the contribution of different inputs, particularly different knowledge sources, on regional patenting output in the framework of a knowledge production function. The knowledge sources included are R&D employment, size of public research institutions by field of research (number of employees, budget), amount of university external research funds from private firms, public departme...

Escherichia coli can be serotyped by determination of somatic (O), capsular (K), and flagellar (H) antigens, and clear associations exist between specific O antigens and pathogenic behavior. However, E. coli is very challenging to O type with traditional serologic methods, making new methods for E. coli somatic antigen detection highly desirable. Here, we describe a simple alternative molecular...

Local clusters of high technology small businesses are of increasing interest to politician and academics. This papers draws on a study of 237 high tech small businesses located throughout the UK. Combining information on activity and location, firms were grouped according to their potential degree of embeddedness in local industrial clusters. Businesses with differing levels of cluster involve...

Collaboration and the exchange of knowledge is supposed to be eased by geographical proximity because of the tacit character of knowledge. Recently a number of scholars criticized this view on geographical proximity for being oversimplified and argue that the precise role of geographical proximity for knowledge exchange and collaboration still remains unclear. This paper analyses the role of ge...

The distribution of the three alleles of the P adhesin gene papG (classes I-III) was assessed among 74 Escherichia coli urine isolates from women with first-episode or recurrent cystitis, and papG genotype was compared with clinical origin, O serogroup, agglutination of Gal(alpha1-4)Gal-coated latex beads and human or sheep erythrocytes, and hemolysin production. The class-III-only papG genotyp...

Empirical analyses show that the employment effects of start-ups are highest in agglomerations, whereas moderately congested areas exhibit only modest effects, and weak or even no significant effects could be found in rural regions. This paper will set out to show that these discrepancies arise from specific characteristics of urban areas. The magnitude of the employment effects of entry in agg...