5,210 research outputs found
Myosin VI Lever Arm Rotation: Fixed or Variable?
No full textTwo recent articles addressed the power-stroke of myosin VI molecules during stepping. Although both groups measured the angles of fluorescent probes attached on the myosin VI molecule lever arm using polarized fluorescence techniques, they differ about whether the myosin VI lever arm rotation is fixed1 or variable2. Here we discuss the causes of the discrepancy between the two studies and the implications for myosin VI processive motility
Life on the land : the interrelationship between identity and community in the Irish fiction of Maria Edgeworth, William Carleton and Charles Lever
No full textThis thesis examines and evaluates the response made by three
nineteenth century Irish writers of fiction to the most pressing
social problem of their time, namely: How might life on the land
be firmly established and maintained? The three writers concerned
— Maria Edgeworth, William Carleton and Charles Lever — are shown
to possess a common artistic vision, which is preserited as an answer
to the question posed. The answer consists of a demonstration of
how the resources of an enabling individual must blend with the
requirements of life on the land as it is.
By way of introduction, the significance of the theme for
both the literary and socio—political contexts of the period
(1800-1872) is described, and the problems of dealing with-nineteenth
century Irish fiction — problems concerned with its status
in the national cultural heritage, its variety and its artistic
characteristics — are outlined.
The four Irish novels of Maria Edgeworth are given a special
status in her overall output, and her handling of the theme in them
is considered as the prototype of her successors' manner of dealing
with it. Carleton and Lever are taken as portraying the Edgeworth
model under stress. Carleton's work is represented by a selection
of pieces from his Traits and Stories of the Irish Peasantry;
Lever's by three novels from the 1850's and '60's. All three
writers are located in their contemporary cultural milieux, and
their individual treatments of the theme are described and compared.
In conclusion, a general characterisation of the type of fiction
produced by the trio is offered, and a basis for its artistic
relationship to Irish fiction of more recent times is rehearsed.
The thesis facilitates a new periodisation of the history of
nineteenth century Irish fiction. It also offers a revised
conception of a tradition, of Irish fiction. These are the
contributions it makes to knowledge of the subject treated
The postliberal politics of halal: new directions in the civilizing process?
No full textThis paper examines the emergence of postliberal halal politics in European societies. Building on research undertaken during the EU funded Dialrel project, it examines how the Malaysian state is inserting hegemonic claims into transnational space in order to dominate the international halal market. Moving beyond the idea of horizontally aligned networks of transnational power as the dominant framework for understanding social and economic change, the paper explores the complex interweaving of the large-scale macro processes and everyday micro practices underpinning the rise of Malaysia’s postliberal halal strategy. It is argued that the processes of social and economic differentiation emerging as a result of these processes have the potential to be an important step in the global civilizing process. In conclusion, the paper discusses the implication of these developments for figurational sociology
Sarah Scott and Fran Lever
No full textInscribed on back: \u27Sarah Scott, Director, LWVMS; Fran Lever, Publicity; LWVMS Convention, 5-31-97; BYC Bioxi\u27https://egrove.olemiss.edu/lwv_photo/1002/thumbnail.jp
Overcoming Natural Resource Constraints Through R&D
No full textWe study the optimal policies of research and development in the context of a resource-exploiting economy. We distinguish two cases: non-renewable resources and renewable resources. In the first case, we show that it is useful to construct an index of scarcity, which is the product of the level of technical know-how and the aggregate stock of resources. Provided that the rate of discount is not too high, there exists a critical level of this index, below which one must maximize the rate of investment in R&D. Starting from this critical level, it is possible to maintain a constant rate of consumption, by substituting knowledge for natural resources. In the case of renewable resources, we show that the optimal policy is to give priority to the production of consumption goods, and the rates of investments in R&D are determined residually. Nous étudions la politique optimale en R&D dans le secteur de ressources naturelles. On distingue deux cas : ressources non renouvelables, et ressources renouvelables. Dans le premier cas, nous montrons qu'il est utile de construire un indice de rareté, qui est le produit du niveau de connaissance scientifique et du stock de ressources. Pourvu que le taux d'escompte ne soit pas trop élevé, il existe un niveau critique de cet indice au-dessous duquel il faut maximiser le taux d'investissement en R&D. À partir de ce niveau critique, on peut atteindre un état stationnaire de consommation en substituant la ressource par la connaissance. Dans le cas de ressources renouvelables, la politique optimale est d'accorder la priorité à la production des biens de consommation, et les investissements en R&D sont déterminés comme résiduels.optimal R&D policies, natural resources, scarcity index, politique optimale en R&D, ressources naturelles, indice de rareté
Why Lever Press?
No full textMy next book, tentatively titled Star Trek: Voyager: Critical and Historical Approaches to Ethics, Politics, and the End of the 1990s is now under contract at Lever Press (title definitely needs some work). This, for me, is very exciting. An open-access press with an innovative funding model – so there are no author-facing charges – I am really pleased to be working with Lever
2D simulation of transient enhanced boron out-diffusion from the base of a SiGe HBT due to an extrinsic base implant
No full textTransient enhanced diffusion of boron in SiGe HBTs is studied by comparing measurements of the temperature dependence of the collector current with the predictions of 2D process and device simulations. The collector current is chosen for modelling because it is extremely sensitive to very small amounts of out-diffusion from the SiGe base, and hence provides a rigorous test for the accuracy of the transient enhanced diffusion models. The SiGe HBT studied incorporates an ion implanted extrinsic base adjacent to the SiGe base, which allows the influence of the implantation damage on the boron diffusion to be studied. The process simulations show that point defects generated by the extrinsic base implant lead to a broadening of the basewidth around the perimeter of the emitter due to transient enhanced diffusion of boron from the SiGe base. This causes parasitic energy barriers to form, which in the worst case, extend laterally several microns from the edge of the extrinsic base. The electrical effect of the transient enhanced diffusion is a decrease in collector current as the emitter geometry is reduced. Transistors with different emitter geometries and undoped SiGe spacer thicknesses are studied and the collector/base reverse bias is varied to modulate the parasitic energy barrier at the collector/base junction. The trends in the measured collector current are in all cases well predicted by a simplified "plus one" transient enhanced diffusion model
Characterisation of the effects of transient enhanced diffusion in SiGe HBTs by a comparison of measured and 2D simulated device characteristics
No full textJJelleLv/MutNetBeyondCollapse: MutNetBeyondCollapse - First release
No full textFirst release to illustrate analysis in: Lever, J.J., Van de Leemput, I.A., Weinans, E., Quax, R., Van Nes, E. H., Bascompte, J., & Scheffer, M. (in press). Foreseeing the future of mutualistic communities beyond collapse. Ecology Letters. doi:10.1111/ele.13401
- …
