β-lactamases are bacterial enzymes that confer resistance to β-lactam antibiotics, such as penicillins and cephalosporins. There are four classes of β-lactamase enzymes, each with characteristic sequence and structure properties. Enzymes from class A are the most common and have been well characterized across the family; however, less is known about how physicochemical properties vary across th...

We provide a framework with multiple worker types (e.g. gender× age× education) to decompose changes in aggregated and disaggregated measures of between-group inequality into changes in (i) the composition of the workforce across labor types, (ii) the importance of different tasks, (iii) the extent of computerization, and (iv) other labor-specific productivities (a residual to match observed re...

The aim of this paper is to propose a mathematical model and to develop an optimization procedure to find efficient solutions to the joint flow shop group scheduling and workers assignment problem. In the investigated manufacturing system, the jobs are grouped into families and should visit machines in the same order., The group set-up times are sequence dependent. In order to evaluate the real...

The benefits of internal labor markets are largest when they include industries that utilize similar worker skills, facilitating cross-industry worker reallocation and collaboration. We construct a matrix of industry pair-wise human capital transferability using information obtained from more than 11 million job changes. We show that diversifying acquisitions occur more frequently among industr...

To understand how IT affects worker productivity we need to understand the factors that shape information worker productivity in the first place. Typical characteristics of information work (in particular, highly intangible output and significant measurement problems) and the managerial response to them are likely to play significant roles in determining information worker productivity. We exam...

The Mental Health Action Checklist for a Better Workplace Environment (MHACL) is a tool for a worker participatory approach to improve work environments for worker mental health. The present study investigated the effects of an organizational intervention using the MHACL on reducing job stressors and the psychological distress of workers of a manufacturing enterprise in Japan with a controlled ...

This chapter describes marketing strategies in concept for wireless broadband services in the Sri Lankan market. It also emphasizes different technologies offering fixed and mobile broadband services. Wi-Fi services which are mentioned here has been on offer for few years but actual marketing of such services are not actively done in Sri Lanka. Various marketing strategies that could be used to...

We develop a model of education where individuals face educational risk. Successful graduation depends on individual effort to study and public resources. After realization of risk, they either work as skilled or as unskilled worker. We show that an optimal public policy consists of tuition fees combined with skill-contingent loans, lump-sum transfers/taxes, and public funding of the educationa...