Sixty-four patients with malignant diseases from whom Serratia marcescens was isolated from various sources were studied regarding their antibody responses to somatic O antigens of this microorganism. Antibodies were titrated by the passive hemagglutination test. An antibody response was considered present when either a fourfold or greater rise in antibody titers between two consecutive serum s...

The Triple Helix of university-industry-government relations is elaborated into a systemic model that accounts for interactions among three dimensions. By distinguishing between the respective micro-operations, this model enables us to recombine the “Mode 2” thesis of a new production of scientific knowledge and the study of systems of innovation with the neoclassical perspective on the dynamic...

Germfree rats monocontaminated with the anaerobic microorganisms Clostridium difficile or another Clostridium species (strain G 62) produce auto-antibodies to colon antigen. The antigen can be extracted with phenol water from the feces of germfree rats. Antibodies, demonstrable by means of passive hemagglutination of antigen sensitized sheep erythrocytes appear after monocontamination for 35 da...

A total of 221 strains of Aeromonas species isolated in Mexico from clinical (161), environmental (40), and food (20) samples were identified using the automated system bioMérieux-Vitek. Antisera for serogroups O1 to 044 were tested using the Shimada and Sakazaki scheme. The K1 antigen was examined using as antiserum the O7:K1C of Escherichia coli. Besides, we studied the antimicrobial patterns...

Growth theory traditionally assumed the existence of an aggregate production function, whose existence and properties are closely tied to the assumption of optimal resource allocation within each economy. We show extensive evidence, culled from the microdevelopment literature, demonstrating that the assumption of optimal resource allocation fails radically. The key fact is the enormous heteroge...

Many countries in Africa suffer high rates of underemployment or low rates of productive employment; many also anticipate large numbers of people to enter the workforce in the near future. This paper asks the question: Are African firms creating fewer jobs than those located elsewhere? And, if so, why? One reason may be that weak business environments slow the growth of firms and distort the al...

We construct a general equilibrium model of urban unemployment with a continuum of heterogeneous urban firms producing differentiated products in a monopolistic competitive market. We show that an increase in urban institutionally fixed minimum wage reduces urban aggregate output and each urban firm will experience an output cut proportional to the change in aggregate output. However, such prop...

A large share of the poor in developing countries run small enterprises, often earning low incomes. This paper explores whether the poor performance of businesses can be explained by a lack of basic business skills. We randomized the offer of a free, 48-hour business skills course to female entrepreneurs in rural Mexico. We find that those assigned to treatment earn higher profits, have larger ...

Introduction: During a nanomineralogy investigation of the Allende CV3 meteorite, we discovered two new minerals, burnettite (IMA 2013054; CaVAlSiO6) and paqueite (IMA 2013-053; Ca3TiSi2(Al2Ti)O14), in a V-rich, fluffy Type A Ca-Alrich inclusion (CAI) A-WP1 (0.6 × 1 mm in size) in USNM 7617, which was previously studied by Paque and coworkers [1-3]. Electron probe microanalysis (EPMA), scanning...

The gas-phase thermal tautomerization reaction between imidazole-4-acetic (I) and imidazole-5-acetic (II) acids was monitored using the traditional hybrid functional (B3LYP) and the long-range corrected functionals (CAM-B3LYP and ωB97XD) with 6-311++G** and aug-cc-pvdz basis sets. The roles of the long-range and dispersion corrections on their geometrical parameters, thermodynamic functions, ki...