Exact solution of a quantum forced time-dependent harmonic oscillator

The Schrodinger equation is used to exactly evaluate the propagator, wave function, energy expectation values, uncertainty values, and coherent state for a harmonic oscillator with a time dependent frequency and an external driving time dependent force. These quantities represent the solution of the classical equation of motion for the time dependent harmonic oscillator

Pharmacological activity of 2,3,8-tri-O-methyl ellagic acid isolated from the stem bark of Irvingia gabonensis

2,3,8-Tri-O-methyl ellagic acid was isolated from the stem bark of Irvingia gabonensis. The acid showed significant antimicrobial activity on some pathogens

‘Let me edutain you...’ Moving Image Education and young people not in education, employment or training

Peer reviewedPublisher PD

Fifty years of oil exploration in Nigeria: The paradox of plenty

It is expected that countries with an abundance of natural resources should prosper. Yet over many years, it has been observed that nations rich in oil, gas, or mineral resources have been disadvantaged in the drive for economic progress. The concept of resource curse which refers to theobservation that nations with rich endowments of natural resources [oil as in the case of Nigeria] often dramatically under perform economically relative to what one would expect was used in this study. The methods employed in data collection, primarily from secondary sources include; literature review of NNPC publications, national dailies and newsmagazines; internet reports on OPEC, oil production in Nigeria, etc. Descriptive statistic was used in data analysis. The results revealed that the oil wealth was initially well applied towards the development of the country. Overtime, successive governments began to mismanage it and a situation like this had given rise to other contemporary oil nations overtaking Nigeria. The consequence is that the early gains of oil disappeared in the face of declining quality of general infrastructure across the country. The growingreliance of the country on oil and gas alone may undermine the democratic structure-rule of law, political stability [as in the case of militancy in the Niger Delta region], government effectiveness and the fight against corruptio

Trigeminal nerve morphology in the American alligator : implications for infering sensory potential in extinct species [abstract]

Among the many adaptations of modern crocodilians, one of the most intriguing is their derived sense of face touch, in which numerous trigeminal nerve-innervated dome pressure receptors speckle the face and mandible and sense vibrations and other mechanical stimuli, directing the animal towards, or away from stimuli. However, the morphological features of this system are not well known, and it remains unclear how aspects of the trigeminal system change during ontogeny and how they scale with other cranial and nervous structures

The Wave Function and the Minimum Uncertainty Function of the Time Dependent Harmonic Oscillator(New Developments in Statistical Physics Similarities in Diversities,YITP Workshop)

この論文は国立情報学研究所の電子図書館事業により電子化されました。The time dependent harmonic oscillator is solved explicitly for quantum mechanics by the operator method with an auxiliary condition as the classical solution. Two classical invariant quantities which determine whether or not the system is bound are derived by the classical equation of motion. We obtain the invariant operator from one classical invariant quantity. Its eigenfunction is related to the solution of Schrodinger equation of the system and its eigenvalue is related to another classical quantity. The wave function is evaluated exactly by the eigenfunction of the invariant operator but it is not the eigenfunction of the Hamiltonian of the system. The uncertainty which calculates with the wave function is not a minimum one. We will confirm that the function which holds minimum uncertainty is a eigenfunction of the Hamiltonian

Research activities in the first two cycles of biosystems engineering university studies in Malta

The University of Malta is harmonising all programme offer to be compliant with the Bologna process which envisages the establishment of the European Higher Education Area by 2010. Research activities at the University of Malta date back to the seventies and were mainly carried out by the Department of Physiology and Biochemistry of the Faculty of Medicine. Following accession within the European Union, significant investment has been committed to structure and support research, in particularly in areas that provide value-added to the country's economy. Consequently; thematic, project-based funding prevails over bottom-up, openended research programmes and measures, giving priority to academia-industry collaboration.peer-reviewe

Enhancing the attractiveness of European study programs in biosystems engineering in Malta

The National Strategy for Research and Innovation for 2007-2010, entitled 'Building and Sustaining the Research and Innovation Enabling Framework' is the pivot on which the Maltese efforts to enhance the attractiveness of Science and Technology is based. Four main entities, namely The Malta Council for Science and Technology, University of Malta, Ministry of Education, Youth and Employment and National Student Travel Foundation come together to complement each other and the national educational system through a variety of different but complementary activities. Information is freely available to students from the websites of the various entities.peer-reviewe

The wave function and minimum uncertainty function of the bound quadratic Hamiltonian system

The bound quadratic Hamiltonian system is analyzed explicitly on the basis of quantum mechanics. We have derived the invariant quantity with an auxiliary equation as the classical equation of motion. With the use of this invariant it can be determined whether or not the system is bound. In bound system we have evaluated the exact eigenfunction and minimum uncertainty function through unitary transformation