Queensland University of Technology

About: Queensland University of Technology is a education organization based out in Brisbane, Queensland, Australia. It is known for research contribution in the topics: Population & Context (language use). The organization has 14188 authors who have published 55022 publications receiving 1496237 citations. The organization is also known as: QUT.

Immunolocalization of ghrelin and its functional receptor, the type 1a growth hormone secretagogue receptor, in the cyclic human ovary.

Abstract: Ghrelin is a novel 28-amino acid peptide identified as the endogenous ligand for the GH secretagogue receptor (GHS-R). Besides its hallmark central neuroendocrine effects in the control of GH secretion and food intake, an unexpected reproductive facet of ghrelin has recently emerged because expression of this molecule and its cognate receptor has been demonstrated in rat testis. However, whether this signaling system is present in human gonads remains to be evaluated. In this study, we have assessed the presence and cellular location of ghrelin and its functional receptor, namely the type 1a GHS-R, in the cyclic human ovary by means of immunohistochemistry using specific polyclonal antibodies. Strong ghrelin immunostaining was demonstrated in ovarian hilus interstitial cells. In contrast, ghrelin signal was not detected in ovarian follicles at any developmental stage, nor was it present in newly formed corpora lutea (CL) at very early development. However, specific ghrelin immunoreactivity was clearly observed in young and mature CL, whereas expression of the peptide disappeared in regressing luteal tissue. Concerning the cognate receptor, ovarian expression of GHS-R1a protein showed a wider pattern of tissue distribution, with detectable specific signal in oocytes as well as somatic follicular cells; luteal cells from young, mature, old, and regressing CL; and interstitial hilus cells. Of particular note, follicular GHS-R1a peptide expression paralleled follicle development with stronger immunostaining in granulosa and theca layers of healthy antral follicles. In conclusion, our results are the first to demonstrate that ghrelin and its functional type 1a receptor are expressed in the cyclic human ovary with distinct patterns of cellular location. The presence of both components (ligand and receptor) of the ghrelin signaling system within the human ovary opens up the possibility of a potential regulatory role of this novel molecule in ovarian function under physiological and pathophysiological conditions.

Islamic Corporate Reports

Abstract: This article develops a theory about the form and the content of the financial information that should be contained in Islamic financial statements. The theory suggests that the presence of the Islamic religion as a cultural variable affects the way certain accounting measures are interpreted and the manner in which accounting information should be disclosed. Two important criteria for disclosure in Islamic accounting are identified: a form of social accountability and a rule of full disclosure. This leads to a modification of the form of the conventional Western set of financial statements, which are referred to in the paper as Islamic corporate reports (ICRs). The specific recommendations are that ICRs should contain a value-added statement as the focus of performance of the accounting entity and a current value balance sheet in addition to the historic cost balance sheet. It is argued that ICRs, extended in this way, would better serve the needs of users wishing to act in accordance with the Islamic code.

Teachers Making Connections: Online Communities as a Source of Professional Learning.

Abstract: The impact of the Internet on our lives has been pervasive. People are increasingly turning to the social interaction available on the Internet to satisfy their needs, whether these are professional or personal. The Internet offers users fast access to social contacts such as online chat groups and discussion lists, helping us to make connections with others. Online communities are being increasingly used by teachers for professional support, guidance and inspiration. These are often organised around subject areas and offer teachers opportunities to develop both personally and professionally. Online communities may present as a source of continuous professional development for teachers as they are able to deliver authentic and personalised opportunities for learning. This paper will present the findings of a study that was conducted on three online communities for teachers. It will explore the nature of online community membership and offer some conclusions regarding their potential as a source of professional learning for teachers.