Daily rhythm of rumination in the goat (Capra hircus) is not driven by feeding.

Rumination shows a nocturnal rhythmic pattern in day-active ruminants. Although feeding has been shown to quantitatively modulate rumination, it is not clear yet if feeding rhythm plays a causal role in rumination rhythm. The present study was carried out to determine whether the daily rhythm of rumination in goats under natural environmental conditions is food-dependent or not, and whether it is modulated by the season.

Sleep in the dromedary camel: features of the 'first night effect'.

The 'first night effect' (FNE) is a well-known phenomenon in polysomnographic (PSG) sleep studies, resulting in significant variations in the macrostructure of wakefulness and sleep states, particularly between the initial and subsequent sleep recording sessions. The FNE phenomenon during sleep has been studied in various species, revealing complex variations between several sessions of sleep recording. The present study used a non-invasive PSG method to examine differences between various vigilance states in four adult female dromedary camels during 4 consecutive nights and days of sleep recording.

Stochastic two-strain epidemic model with saturated incidence rates driven by Lévy noise.

In this paper, we introduce a stochastic two-strain epidemic model driven by Lévy noise describing the interaction between four compartments; susceptible, infected individuals by the first strain, infected ones by the second strain and the recovered individuals. The forces of infection, for both strains, are represented by saturated incidence rates. Our study begins with the investigation of unique global solution of the suggested mathematical model.

An hedonic evaluation of the impacts of vertical coordination on business performance amongst apple producers in Morocco.

We present an econometric analysis of the marketing of apples in Morocco that investigates the relationship between vertical coordination arrangements and the prices of apples for farmers. In this study, the hedonic method is used to evaluate the vertical coordination of apple fruit chains by analyzing the marginal implicit price of different product characteristics. We examine the variables influencing apple prices for farmers, comprising intrinsic factors related to the farm's characteristics and quality attributes such as fruit variety and fruit diameter.

Local and global stability of an HCV viral dynamics model with two routes of infection and adaptive immunity.

The aim of this article is to formulate and study a mathematical model describing hepatitis C virus (HCV) infection dynamics. The model includes two essential modes of infection transmission, namely, virus-to-cell and cell-to-cell. The effect of therapy and adaptive immunity are incorporated in the suggested model.