The EU Sugar Policy Regime and Implications of Reform

The European Union’s sugar policy, in place since 1968, underwent its first major reform in 2005 in response to mounting and unsustainable imbalances in supply and demand. The reform, however, targeted only a few policy instruments (intervention price cut, voluntary production quota buyout, and restrictions on nonquota sugar exports), while leaving other key policies unchanged (interstate quota trading, sugar-substitute competition, and import barriers). Consequently, the extent of the reform’s impact is limited, compared with more far-reaching alternatives, particularly when the oligopolistic nature of the industry and its noncompetitive pricing behavior are taken into account. A model-based analysis suggests that the reforms by themselves are unlikely to induce price adjustments sufficient to reduce overproduction unless quotas and/or high tariffs are reduced.European Union, EU, sugar CMO, Common Market Organization, policy reform, trade, economic model, Agricultural and Food Policy, International Relations/Trade,

Application of ARCHIMEDES in Three Dimensions and to Solid Mechanics

ARCHIMEDES is a computerized learning system that has helped Syracuse University students overcome the challenges of Engineering Statics since 2009. Its success has motivated application of ARCHIMEDES to three dimensional problems and to problems in Solid Mechanics. Other learning software was investigated before seven Solid Mechanics problems were written for ARCHIMEDES. A 3D graphical interface was developed and evaluated by a field test of student volunteers. Student preferences for various features in 3D learning software were obtained. It is clear from student responses that having a 3D scene to manipulate improves visualization of the problem, mitigating the ambiguity of a textbook problem’s graphic

Weak one-basedness

We study the notion of weak one-basedness introduced in recent work of Berenstein and Vassiliev. Our main results are that this notion characterises linearity in the setting of geometric þ-rank 1 structures and that lovely pairs of weakly one-based geometric þ-rank 1 struc- tures are weakly one-based with respect to þ-independence. We also study geometries arising from infinite dimensional vector spaces over division rings

Modulating plant primary amino acid metabolism as a necrotrophic virulence strategy : the immune-regulatory role of asparagine synthetase in Botrytis cinerea-tomato interaction

The fungal plant pathogen Botrytis cinerea is the causal agent of the “gray mold” disease on a broad range of hosts. As an archetypal necrotroph, B. cinerea has evolved multiple virulence strategies for inducing cell death in its host. Moreover, progress of B. cinerea colonization is commonly associated with induction of senescence in the host tissue, even in non-invaded regions. In a recent study, we showed that abscisic acid deficiency in the sitiens tomato mutant culminates in an anti-senescence defense mechanism which effectively contributes to resistance against B. cinerea infection. Conversely, in susceptible wild-type tomato a strong induction of senescence could be observed following B. cinerea infection. Building upon this earlier work, we here discuss the immune-regulatory role of a key senescence-associated protein, asparagine synthetase. We found that infection of wild-type tomato leads to a strong transcriptional upregulation of asparagine synthetase, followed by a severe depletion of asparagine titers. In contrast, resistant sitiens plants displayed a strong induction of asparagine throughout the course of infection. We hypothesize that rapid activation of asparagine synthetase in susceptible tomato may play a dual role in promoting Botrytis cinerea pathogenesis by providing a rich source of N for the pathogen, on the one hand, and facilitating pathogen-induced host senescence, on the other

A new monolithic approach for mid-IR focal plane arrays

Antimonide-based photodetectors have recently been grown on a GaAs substrate by molecular beam epitaxy (MBE) and reported to have comparable performance to the devices grown on more expensive InSb and GaSb substrates. We demonstrated that GaAs, in addition to providing a cost saving substrate for antimonide-based semiconductor growth, can be used as a functional material to fabricate transistors and realize addressing circuits for the heterogeneously grown photodetectors. Based on co-integration of a GaAs MESFET with an InSb photodiode, we recently reported the first demonstration of a switchable and mid-IR sensible photo-pixel on a GaAs substrate that is suitable for large-scale integration into a focal plane array. In this work we report on the fabrication steps that we had to develop to deliver the integrated photo-pixel. Various highly controllable etch processes, both wet and dry etch based, were established for distinct material layers. Moreover, in order to avoid thermally-induced damage to the InSb detectors, a low temperature annealed Ohmic contact was used, and the processing temperature never exceeded 180 °C. Furthermore, since there is a considerable etch step (> 6 μm) that metal must straddle in order to interconnect the fabricated devices, we developed an intermediate step using polyimide to provide a smoothing section between the lower MESFET and upper photodiode regions of the device. This heterogeneous technology creates great potential to realize a new type of monolithic focal plane array of addressable pixels for imaging in the medium wavelength infrared range without the need for flip-chip bonding to a CMOS readout chip

Secularism in the Arab World: Contexts, Ideas and Consequences

Explores secularism and secularisation in Arab societies since the mid-19th century. This book is a translation of Aziz al-Azmeh’s seminal work Al-\u27Ilmaniya min mandhur mukhtalif that was first published in Beirut in 1992. Both celebrated and criticised for its reflections on Arab secularisation and secularism in the modern history of the Arab World, it is the only study to date to approach its subject as a set of historical changes which affected the regulation of the social, political and cultural order, and which permeated the concrete workings of society, rather than as an ideological discussion framed from the outset by the assumed opposition between Islam and secularism. The author takes a comprehensive analytical perspective to show that an almost imperceptible yet real, multi-faceted and objective secularising process has been underway in the Arab world since the 1850s. Traces the concrete secular transformations in Muslim societies which occurred at particular times and by specific social agencies Explores how secular changes influenced the functioning of different strata and groups, and the central attitudes of their members Devotes considerable attention to religious reform in the broader context of the developments studied, and of the ideological, political and institutional religious reactions to both Includes a new Preface by the author to introduce the English translationhttps://ecommons.aku.edu/uk_ismc_series_intranslation/1003/thumbnail.jp