Transgenerational experience can affect a range of natural enemies’ life-history traits and be involved in the control developmental plasticity. As major egg parasitoid spotted lanternfly, Lycorma delicatula (Hemiptera: Fulgoridae), wasp Anastatus orientalis (Hymenoptera: Eupelmidae) is effective at suppressing its host populations. The reproductive A. known to depend on photoperiod conditions,...

Recently, we have shown that the rabies virus (RV) matrix (M) protein regulates the balance of virus RNA synthesis by shifting synthesis activity from transcription to replication (S. Finke, R. Mueller-Waldeck, and K. K. Conzelmann, J. Gen. Virol. 84:1613-1621, 2003). Here we describe the identification of an M residue critical for regulation of RV RNA synthesis. By analyzing the phenotype of h...

In this paper we specialize the Ngai-Pissarides model of growth and structural change [American Economic Review 97 (2007), 429-443] to the case of three sectors, representing the primary (agriculture, mining), secondary (construction, manufacturing) and tertiary (services) sectors. On that basis we explore the dynamic properties of the model along the transition path to the steady-state equilib...

How does technological progress occur? Is the nature of innovation stable over time? We shed new light on these questions through a mixture of empirics and theory. We begin with an empirical analysis of patents granted by the United States Patent and Trademark Offi ce. This analysis reveals several striking facts that emphasize the increasing importance of novel combinations of technologies for...

(Received: Feb. 24, 2013; Accepted in Revised Form: April 9, 2013) Abstract: Mycophenolic acid (MPA) is an antibiotic and immunosuppressive agent, as a secondary metabolite of Penicillium brevicompactum. Parameter optimization of culture composition using Test plan L16, available in the form of an orthogonal array and software for automatic design and analysis of the experiments, both based on ...

Questioning the underlying assumptions of the process of creative destruction, we conceptualize an alternative process of creative construction that may characterize the dynamics between entrants and incumbents. We discuss the underlying mechanism of knowledge spillover strategic entrepreneurship whereby knowledge investments by existing organizations, when coupled with entrepreneurial action b...

We introduce non-homothetic preferences into an R&D based growth model to study how demand forces hape the impact of inequality on innovation and growth. Inequality affects the incentive to innovate via a price effect and a market size effect. When innovators have a large productivity advantage over traditional producers a higher extent of inequality tends to increase innovators’prices and mark...

This paper extends the standard quality ladder model of innovation and quality growth by allowing for heterogeneous industries. This enables us not only to deal with the Schumpeterian hypothesis about market power and innovation, but also to analyze industry specific demand pull and technology push effects. In accordance with the empirical evidence, we show that perspective of large market powe...

We present a model in which two of the most important features of the long-run growth process are reconciled: the massive changes in the structure of production and employment; and the Kaldor facts of economic growth. We assume that households expand their consumption along a hierarchy of needs and firms introduce continuously new products. In equilibrium industries with an expanding and those ...