Molecular Antioxidants Maintain Synergistic Radical Scavenging Activity upon Co-Immobilization on Clay Nanoplatelets

Unbalanced levels of reactive oxygen species (ROS) result in oxidative stress, affecting both biomedical and industrial processes. Antioxidants can prevent ROS overproduction and thus delay or inhibit their harmful effects. Herein, activities of two molecular antioxidants (gallic acid (GA), a well-known phenolic compound, and nicotinamide adenine dinucleotide (NADH), a vital biological cofactor) were tested individually and in combination to assess possible synergistic, additive, or antagonistic effects in free radical scavenging and in redox capacity assays. GA was a remarkable radical scavenger, and NADH exhibited moderate antioxidant activity, while their combination at different molar ratios led to a synergistic effect since the resulting activity was superior to the sum of the individual GA and NADH activities. Their coimmobilization was performed on the surface of delaminated layered double hydroxide clay nanoplatelets by electrostatic interactions, and the synergistic effect was maintained upon such a heterogenization of these molecular antioxidants. The coimmobilization of GA and NADH expands the range of their potential applications, in which separation of antioxidant additives is important during treatments or manufacturing processes

The examination of population parameters of roe deer living on plain habitat

The population growth depends basically on the quality of parents (genotype) and the environmental influences. The quality of parents in the case of wild animals, especially in the case of doe, is characterized by the most important biological features like age, body weight and body condition. The condition of doe represents the quality of the habitat, which may indirectly affect the population growth. At large wild ruminant species the reproductive success mainly depends on the body weight and the stored body fat. On the other hand roe deer does not store significant amount of fat in order to maximize its reproductive success (ANDERSEN et al., 2000). In this respect the body weight of doe, the quantity and quality of available feed is dominant, which establishes the reproductive performance of individuals. The average kidney fat index of roe deer shot in Nagyszénás is 1,90, in Hódmezővásárhely 1,45. The average body weight of roe deer dropped in Nagyszénás is also higher (20,59 kg) than of roe deer on the territory of Hódmezővásárhely (18,46 kg)

Book reviews

Katalin É. Kiss: The syntax of Hungarian. Cambridge University Press, Cambridge, 2002, 278 pp. ; Jacqueline Guéron – Jacqueline Lecarme (eds): The syntax of time (Current Studies in Linguistics 37). MIT Press, Cambridge MA, 2004, 760 pp. ; Ken Safir: The syntax of (in)dependence (Linguistic Inquiry Monograph 44). MIT Press, Cambridge MA 2002, xvi + 194 pp

The feed preference of roe deer in different habitats

The roe deer, widely distributed across Europe and our homeland, has a significant economic and hunting value. Our research aims to understand the diet and food choice of deer in the lowland (Great Hungarian Plain, Hódmezővásárhely) and mid-mountain (North Hungarian Mountains, Salgótarján) habitats. To determine their diet, we conducted a sample collection of roe deer and analysed their droppings using epidermal analysis. Descriptive statistics were employed to determine the proportions of ingested plants, revealing Petroselium spp. (6.5-8.3%) and Beta spp. leaves (4.3-9.1%) as the most commonly consumed plants in Hódmezővásárhely. In Salgótarján, the roe deer population consumed significant amounts of Robinia pseudoacacia (47.8%). These findings have implications for wildlife management and conservation, particularly in areas where roe deer are the predominant big game species, such as the Great Hungarian Plain, providing ample opportunities for hunting and economic benefits

Mapping and Security Analysis of Sensor Network for Electric Vehicles

Today's vehicles are becoming more and more complex in order to meet the ever increasing safety and comfort requirements. Most people usually do not consider the car sitting in their driveway to be on the leading edge of new technology. However, for most people, the personal automobile has now become their initial exposure to new intelligent computational technologies such as fuzzy logic, neural networks, adaptive computing, voice recognition and others. This paper explores the sensory-network of electric vehicles and analyses it from a security and reliability perspective

Gépjármű kanyarodási technológiák, közvetlen adaptív kormányzás

A különböző kanyarodási technológiák jelentős fejlődésen mentek keresztül az elmúlt évtizedekben. Ebben a konferenciacikkben egy tanulmányt végzünk, melynek keretében az eddig használatos, elterjedt technológiák kerülnek bemutatásra, majd bővebben tárgyaljuk az INFINITY által bevezetett közvetlen, digitális alapú adaptív kormányzást