ةصلاخلا Allopeas gracilis is recorded for the first time in southern Iraq. It was collected from two localities (Abu-Al Khaseeb region and Hareer region) from Basrah city. ضرلاا عقوقلا نم ةنيع نورشعو نامث ي Allopeas gracilis مت للاخ ةرصبلا ةنيدم ،ريرح ةقطنم و بيصخلا وبا ةقطنم نم اھعمج ناسين رھش 2008 راذاو 2008 يلاوتلا ىلع . ليجستلا اذھ ربتعي دعب ةرصبلا ةنيدم نم ةيضرلاا عقاوقلا نم ثلاثلا Monacha...

We review various methods for measuring delocalization in light-harvesting complexes. Direct relations between inverse participation ratios (IPRs) and entanglement measures are derived. The B850 ring from the LH2 complex in Rhodopseudomonas acidophila is studied. By analysing electronic energy transfer dynamics in the B850 ring using different metrics for quantifying excitonic delocalization, w...

I study the role of intellectual property rights (IPRs) in a model of endogenous growth with sequential innovation. The model mimics the innovation process in hi-tech sectors where many of the techniques and products used in R&D are recent discoveries themselves. Depending on the structure of the patent system, some of these discoveries might still be protected by a patent. In this context IPRs...

The International Centre for Trade and Sustainable Development (ICTSD) has been active in the field of intellectual property since 1997, amongst others, through its Programme on Intellectual Property Rights (IPRs) and Sustainable Development. One central objective of the Programme has been to facilitate the emergence of a critical mass of well informed stakeholders in developing countries inclu...

Many fields have struggled to develop strategies, policies, or structures to optimally manage data, materials, and intellectual property rights (IPRs). There is growing recognition that the field of stem cell science, in part because of its complex IPRs landscape and the importance of cell line collections, may require collective action to facilitate basic and translational research. Access to ...

The authors are concerned with the reconciliation of private rights that intellectual property rights (IPRs) represent with the public benefit deriving from properly developed technical standards. One of the key difficulties in achieving this aim is that IPRs are increasingly perceived as conflicting with other norms; in particular, the relationship between intellectual property law and competi...

This paper studies the effect of strengthening intellectual property rights (IPRs) after the signing of the TRIPS on agricultural trade, for the period 1995-2011. It uses data of agricultural exports and a new yearly index of intellectual property (IP) protection, for 60 developed and developing countries. Also, the paper studies bilateral trade links and the intensive and extensive margins of ...