Do orientation and substrate influence apparent turning biases by the 7-spot ladybird, Coccinella septempunctata?

How foraging predators explore their environment is a fundamental aspect of predator-prey interactions. Girling et al. (2007) tested Coccinella septempunctata in a Y-maze, finding that approximately 45% of individuals displayed significant turning biases. We extend the work of Girling et al. in three ways: (1) turning bias was tested on vertical as well as horizontal structures, (2) turning bias was tested on natural Y-shaped twigs as well as artificial twigs and (3) turning bias was recorded both as the pre-designated ‘left’ or ‘right’ physical branch selected and from the perspective of ladybirds. No significant patterns of ‘handedness’ were apparent with vertical orientation, on either substrate. With horizontal orientation, significant turning biases were exhibited on artificial but not natural twigs. Overall, although turning biases are theoretically efficient when searching branched structures, we propose that in natural environments ladybirds will base their foraging movements on environmental cues.

The Role of E-Banking on the Switching Behaviour of Retail Clients of Commercial Banks in Polokwane, South Africa

This study focused on investigating the role of E-banking on the switching behaviour of retail bank clients in Polokwane, South Africa. Recently, studies have shown that people are switching banks more often than in the past. Circumstances that are beyond control cause people to switch. This has become a challenge in the banking industry as many banks lose their clients. However, newly developed technologies have brought many changes in the operation of banks. The new E-banking services have enabled bank clients to have access to their bank account for 24 hours without visiting the physical branch. A sample of 98 respondents was surveyed in Polokwane, South Africa using the convenience sampling technique. The cronbach alpha test was used to ascertain reliability of the findings. The findings reveal that demographic characteristics have much impact on the switching behaviour of commercial bank clients and acceptance of e-banking services. Switching factors such as bank charges, low interest rates on savings, promotion activities, location and switching costs were the major reasons for bank customers to switch banks.

The Role of E-Banking on the Switching Behaviour of Retail Clients of Commercial Banks in Polokwane, South Africa

This study focused on investigating the role of E-banking on the switching behaviour of retail bank clients in Polokwane, South Africa. Recently, studies have shown that people are switching banks more often than in the past. Circumstances that are beyond control cause people to switch. This has become a challenge in the banking industry as many banks lose their clients. However, newly developed technologies have brought many changes in the operation of banks. The new E-banking services have enabled bank clients to have access to their bank account for 24 hours without visiting the physical branch. A sample of 98 respondents was surveyed in Polokwane, South Africa using the convenience sampling technique. The cronbach alpha test was used to ascertain reliability of the findings. The findings reveal that demographic characteristics have much impact on the switching behaviour of commercial bank clients and acceptance of e-banking services. Switching factors such as bank charges, low interest rates on savings, promotion activities, location and switching costs were the major reasons for bank customers to switch banks.

Two Dimensional Analytical Considerations of Large Magnetic and Electric Fields in Laser Produced Plasmas

A simple model in two dimensions is developed and solved analytically taking into account the electric and magnetic fields in laser produced plasmas. The electric potential in this model is described by the non-linear differential equationψ = eφ/T, where eφ is the electric potential energy and T is the temperature in energy units. The physical branch ψ < 1, defined by the electron density n = no exp ψ, boundary conditions n (x = 0) = const and n (x = +∞) = 0, introduces a typical electrostatic double layer. The stationary solution of this model is consistent for − 3 ≲ ψ < 1, with electron temperatures in the KeV region and a ratio of the electric (E) to magnetic (B) fields of [E/106 v/cm]/[B/MGauss] ∼ 1.