Emerging technologies for physical weed control in row crops in Euro

Review of European physical and cultural weed control methods including new directions in research and technolog

Wake me up before you GO-GARCH

In this paper we present a new three-step approach to the estimation of Generalized Orthogonal GARCH (GO-GARCH) models, as proposed by van der Weide (2002). The approach only requires (non-linear) least-squares methods in combination with univariate GARCH estimation, and as such is computationally attractive, especially in largerdimensional systems, where a full likelihood optimization is often infeasible. The eï¬~@ectiveness of the method is investigated using Monte Carlo simulations as well as a number of empirical applications.

Geen structuurschade meer bij mais

Maïs telen zonder structuurbederf van de bodem. Het kan, bewijzen ervaringen van boeren met een eigen wijze van telen. Bovendien bieden de teeltsystemen ook andere voordelen, zoals minder uitspoeling van nitraat. Wageningen UR vergelijkt de systemen en onderzoekt de voordelen

The Formal Theory of Monads, Univalently

We develop the formal theory of monads, as established by Street, in univalent foundations. This allows us to formally reason about various kinds of monads on the right level of abstraction. In particular, we define the bicategory of monads internal to a bicategory, and prove that it is univalent. We also define Eilenberg-Moore objects, and we show that both Eilenberg-Moore categories and Kleisli categories give rise to Eilenberg-Moore objects. Finally, we relate monads and adjunctions in arbitrary bicategories. Our work is formalized in Coq using the https://github.com/UniMath/UniMath library