A sequential model which describes the kinetic behavior of multilayer immobilized-enzyme filter reactors for systems obeying the Michaelis-Menten scheme and various types of inhibition by product and by substrate is proposed. The model was varified experimentaly using a single enzyme-filter-substrate system-urease bound to nylon-filter disks acting on urea-in different buffers to obtain the various inhibition patterns.

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Abstract:In the 1980s the kibbutzim suffered a severe economic and demographic crisis, which endangered the continuation of their existence as cooperative communities. The solution was to adopt steps, taken from the ideas of the free market. Beyond the increase of economic efficiency, the rearrangement of the community under new rules was accompanied by political influence, as can be seen in the change of the voting pattern of the kibbutzim members to the Knesset.The main argument is that the arrangement of kibbutz society under the new rules brought into the kibbutz a new social discourse that completely changed the way in which the individual defines himself in social and political terms. The political byproduct was that the Left parties that in the past served as a prototype for the socialist identity were perceived as not relevant to the new social identity, in favor of steadily increasing support for the center parties.To track the change in the political identity, we chose to examine from up close three kibbutzim found at different stages of the change processes: Kibbutz Deganya A, Kibbutz Mizra, and Kibbutz Ein Dor. The objective was not only to identify which group in the kibbutz changed its political identity but primarily, to examine how the penetration of the new social knowledge contributed to this.The findings revealed a large gap in the perception of reality primarily between two age groups in the kibbutz. Unlike the older generation, the younger employed neo-liberal social representations to define itself, the community, and the political system. The left parties, like the old kibbutz, were perceived as old, inefficient, and thus not relevant for it in the voting for the Knesset.

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Abstract:The positions of the political parties in Israel on the central issues that concern the Israeli society reveal a struggle between two social orientations regarding the desired character of the State of Israel. At one extreme stands the Jewish ethnic identity that draws its origins from the Jewish tradition and aspires to guaranty the Jewish nature of the state. The civic liberal identity that stands at the other end represents the aspiration of an equal and democratic state in the spirit of the values of the French Revolution.For the first thirty years, Israel was ruled by left-wing socialist and secular parties who cultivated the civic identity. However, in 1977 a political upheaval occurred when the right-wing and religious parties took power and since then have operated to promote the Jewish ethnic identity. The strengthening of right-wing parties reveals a fundamental change in Israeli society.A consequence of the strengthening of the Jewish ethnic identity is the adoption of a dichotomous world view by the Israeli government and uncompromising positions toward the international arena, including the EU. The current structure of Israeli society, together with the trend for the coming years, suggests the strengthening of the Jewish ethnic identity, and therefore the political gap between Israel and the EU widening.