The Green’s function is the impulse response of a system and is used to infer the properties of the system from surface measurements. In exploration seismology, imaging algorithms use estimates of the Green’s functions along with surface measurements to image the subsurface, i.e. locate the Earth’s interfaces and its properties, so as to identify valuable energy resources. These conventional im...

Enterprise governance for higher education can be viewed as arrangements that include a variety of university assets in order to support the strategy in achieving the goals and objectives. In the implementation governance in university there are factors that affect good governance which are individual or groups. These factors are then called an enabler of enterprise governance. In the previous ...

IT governance aims to align business and information technology strategies. Organizations adopt IT governance to ensure efficiency, decreased costs and increased control of IT infrastructures. Some believe that IT governance will improve organizational accountability, thereby resulting in return on investments. IT governance frameworks, such as COBIT and ITIL, are internationally accepted and p...

We present a high-spatial-resolution subsurface microscopy technique that significantly increases the numerical aperture of a microscope without introducing an additional spherical aberration. Consequently, the diffraction-limited spatial resolution is improved beyond the limit of standard subsurface microscopy. By realizing a numerical aperture of 3.4, we experimentally demonstrate a lateral s...

The purpose of this empirical study is to evaluate the extent to which information security governance domain practices: strategic alignment, value delivery, resource management, risk management, and performance measurement relate to information security governance effectiveness. Random sampling technique was employed and data were collected via web survey from Ghanaian organizations. Employing...

Building on prior research on how boards should provide stakeholder transparency by disclosing on how their organizations are governing their IT assets, this paper provides an exploratory insight in the contemporary state of IT governance transparency in Belgian and South African companies. Specifically, the influence of the national corporate governance code on IT governance transparency is in...

Although practitioners have begun to implement Green IT into their companies, the governance of sustainable information systems varies significantly. Only little has been done to explain these differences in Green IT governance. Building upon contingency theory and IT governance, we develop a contingency model for Green IT governance which demonstrates the fit between contingencies and the comp...

BACKGROUND Governance and leadership in health development are critically important for the achievement of the health Millennium Development Goals (MDGs) and other national health goals. Those two factors might explain why many countries in Africa are not on track to attain the health MDGs by 2015. This paper debates the meaning of 'governance in health development', reviews briefly existing go...

scapes or metropolitan regions. The Organization for Economic Cooperation and Development (OECD) defines governance today as “the organization and administration of regional authorities and institutions on the most varied levels as well as the corresponding processes of decision-making, cooperation, and exertion of influence” (OECD 2001). But, as most observers of politico-institutional develop...

We have modified the kinetic equations for the absorption of hydrogen in transition metals to include the effects of strong subsurface bonding. The new equations show that the subsurface, self-trapped hydrogen acts as a valve for the admission of hydrogen into the bulk. The explanation for a number of experimental facts, not well understood before, neatly follows. Discrepancies between theory a...