We conducted a 5-year field (2017–2021) and laboratory study of the relationship between type substrate hatching success, embryonic development, quality hatchlings in loggerhead turtle nests. Our site, island Maio archipelago Cabo Verde, one world’s largest nesting colonies, displays marked heterogeneity sand colouration, with dark, mixed, light sandy beaches. experimentally incubated eggs, com...

In order to design composites and laminated materials, it is necessary to understand the issues that govern crack deflection and crack penetration at interfaces. Historically, models of crack deflection have been developed using either a strength-based or an energy-based fracture criterion. However, in general, crack propagation depends on both strength and toughness. Therefore, in this paper, ...

This paper summarizes the objectives and some early results of the ESPRIT project 29260 BANDIT. It is a 3 year project that started in September 1998. Coordinating partner is IMEC and the other partners are K.U.Leuven and Ericsson Radio Systems (ERA). The goal of BANDIT is to develop a general design and test methodology for embedding high-speed analog/digital converters (ADCs) on large digital...

The relation between concentration of thymolphthalein monophosphate substrate and catalytic activity was investigated for the determination of prostatic acid phosphatase. This study, an extension of previously reported work (Clin. Chem. 27: 1372, 1981), shows that lot-to-lot variation in purity of thymolphthalein monophosphate preparations is reflected in substrate-velocity curves. Plateau regi...

BACKGROUND Currently, the amount of protein/enzyme required to achieve effective cellulose hydrolysis is still too high. One way to reduce the amount of protein/enzyme required is to formulate a more efficient enzyme cocktail by adding so-called accessory enzymes such as xylanase, lytic polysaccharide monooxygenase (AA9, formerly known as GH61), etc., to the cellulase mixture. Previous work has...

Existing research in substrate coupling noise in mixedsignal circuits has concen tratedon the problem of the high speed digital circuitry in uencing the highly sensitive analog circuitry [1{6]. It has been demonstrated in the literature that physical design plays an important role in minimizing the in uence of substrate noise generated by the digital circuitry, a ecting the highly sensitive ana...

The response of an amperometric biosensor at mixed enzyme kinetics and diffusion limitations was modelled digitally in the case of substrate inhibition. Digital simulations were carried out using a finite difference technique. Calculations showed complex kinetics of biosensor response. At low enzyme activity and substrate concentration (S0), the response of the sensor looks like it is limited b...

The primary objective of this study was to evaluate the impact of substrate interactions on the biotransformation rates and mineralization potentials of gasoline monoaromatics and methyl tert-butyl ether (MTBE), compounds that commonly co-exist in groundwater contaminant plumes. A mixed culture was derived from gasoline-contaminated aquifer material using toluene as the enrichment substrate. Tw...

Substrate noise generated by large digital circuits degrades the performance of analog circuits sharing the same substrate. To simulate this performance degradation, the total amount of substrate noise must be known. For large digital circuits, the substrate simulation is however not feasible with a transistor-level simulator due to the long simulation times and high memory requirements. We are...

2-Aminoethylarsonic acid was tested for its ability to act as a substrate for ethanolamine-phosphate cytidylytransferase as a cytidylyl acceptor in place of ethanolamine phosphate. The expected product, like all mixed anhydrides of arsonic acids, should hydrolyse spontaneously with regeneration of the substrate analogue and CMP formation; such CMP production was observed. The limiting velocity ...