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Search Results: 1 - 10 of 132 matches for " Yotam Gonen and Giora Rytwo "
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Using a Matlab Implemented Algorithm for UV-vis Spectral Resolution for pKa Determination and Multicomponent Analysis
Yotam Gonen and Giora Rytwo
Analytical Chemistry Insights , 2012,
Abstract: A Matlab implemented computer code for spectral resolution is presented. The code enables the user to resolve the UV-visible absorption spectrum of a mixture of up to 3 previously known components, to the individual components, thus, evaluating their quantities. The resolving procedure is based on searching the combination of the components which yields the spectrum which is the most similar (minimal RMSE) to the measured spectrum of the mixture. Examples of using the software for pKa value estimation and multicomponent analysis are presented and other implementations are suggested.
Using a Matlab Implemented Algorithm for UV-vis Spectral Resolution for pKa Determination and Multicomponent Analysis
Yotam Gonen,Giora Rytwo
Analytical Chemistry Insights , 2009,
Abstract: A Matlab implemented computer code for spectral resolution is presented. The code enables the user to resolve the UV-visible absorption spectrum of a mixture of up to 3 previously known components, to the individual components, thus, evaluating their quantities. The resolving procedure is based on searching the combination of the components which yields the spectrum which is the most similar (minimal RMSE) to the measured spectrum of the mixture. Examples of using the software for pKa value estimation and multicomponent analysis are presented and other implementations are suggested.
The Ethics of Cooperation in Business  [PDF]
Yotam Lurie
Open Journal of Philosophy (OJPP) , 2016, DOI: 10.4236/ojpp.2016.62015
Abstract: As cooperative ventures and strategic alliances have increased in numbers, there is need for an analysis which does not proceed from presumption that singular-person action is the only form of action. When doing things with others, certain wrongs become possible that solo activity does not recognize. Moreover, such an alternative might help identify explanations and ways firms might better manage cooperative ventures. Philosophers in the field of business ethics can contribute to this discussion by bringing insight to a concept that is now at the focus of the business and academic community. This paper aims to clarify the concept of cooperation and more specifically the notions of cooperative action. At least some obligations seem to arise out of the very fact that we are in some activity together. The questions posed in connection with it are such as, “What exactly do we mean by cooperation? What are the key characteristics of cooperation? Is it possible to delineate a generic typology of various kinds of cooperation?” Initially the paper fleshes out the formal features of the concept. Next, the paper considers the types of cooperation likely to exist in the business world, offering four schemes of cooperation that progress from the more limited to the more advanced forms of cooperation. Consequently, it discusses the idea of cooperation in business from an ethical perspective.
Behaviour of an organomontmorillonite-acetochlor formulation in drained wetland soils of the Hula Valley
G. Rytwo,O. Rabinowitz
Mires and Peat , 2012,
Abstract: Weed control poses a real challenge to agriculture in general, and to agriculture on drained peatlands in particular. An understanding of the interactions between clay minerals and organic molecules has yielded effective preparations of herbicide formulations. In most cases, binding the active ingredient to a suitable organoclay-based platform enhances activity by reducing migration of the herbicide to non-target depths, or by reducing degradation of the active ingredient. In this short communication, a formulation based on an organoclay and the herbicide acetochlor is compared with a commercial formulation. Efficiency was tested in two soils from the Hula Valley: a mineral, clay-based soil (with about 4 % organic matter) and a peat-derived soil with ~20 % organic matter. Although the soils were located only two kilometres apart, completely different herbicidal activity was observed. In the mineral soil, the organoclay formulation improved the behaviour of the herbicide and prevented its leaching; whereas in the peat-derived soil, the organoclay and commercial formulations behaved similarly, and were confined to the upper soil layer. In the latter case, the penetration depth of herbicide added in the organoclay formulation might be too shallow, resulting in poor herbicidal activity. The results of this study demonstrate differences that should be considered in weed control in drained peat soils.
Nationalized Judaism and Diasporic Existence. Jakob Klatzkin and Hans Jonas
Yotam Hotam
Behemoth : a Journal on Civilisation , 2008,
Abstract: This article characterizes the modern Jewish debate around Zionism as a profound political theological controversy by juxtaposing the works of two significant twentieth-century Jewish scholars, Jakob Klatzkin (1882–1948) and Hans Jonas (1903–1993). While Klatzkin campaigned for Zionism as Gnosticism, Jonas critically challenged this link in his writings from the 1950s and 1960s. In presenting a theological reading of modern Jewish secular thought, the article transcends the political controversy between Zionists and Post-Zionists of the recent decades and proposes a new horizon in the study of Jewish modern-secular thought.
Sum of Two Squares - Pair Correlation and Distribution in Short Intervals
Yotam Smilansky
Mathematics , 2012, DOI: 10.1142/S1793042113500516
Abstract: In this work we show that based on a conjecture for the pair correlation of integers representable as sums of two squares, which was first suggested by Connors and Keating and reformulated here, the second moment of the distribution of the number of representable integers in short intervals is consistent with a Poissonian distribution, where "short" means of length comparable to the mean spacing between sums of two squares. In addition we present a method for producing such conjectures through calculations in prime power residue rings and describe how these conjectures, as well as the above stated result, may by generalized to other binary quadratic forms. While producing these pair correlation conjectures we arrive at a surprising result regarding Mertens' formula for primes in arithmetic progressions, and in order to test the validity of the conjectures, we present numericalz computations which support our approach.
On the universal mod $p$ supersingular quotients for $\mathrm {GL}_2(F)$ over $\overline{\mathbb F}_p$ for a general $F/\mathbb{Q}_p$
Yotam Hendel
Mathematics , 2015,
Abstract: Let $F/\mathbb{Q}_p$ be a finite extension. We explore the universal supersingular mod $p$ representations of $\mathrm{GL}_2(F)$ through computing a basis of their invariant space under the pro-$p$ Iwahori subgroup. This generalizes works of Breuil and Schein from $\mathbb{Q}_p$ and the totally ramified cases to the arbitrary one. Using these results we then construct for an unramified $F/\mathbb{Q}_p$ a quotient of the universal supersingular module which has as quotients all the supersingular representations of $\mathrm{GL}_2(F)$ with a $\mathrm{GL}_2(\mathcal{O}_F)$-socle that is expected to appear in the mod $p$ local Langlands correspondence. A construction for the case of an extension of $\mathbb{Q}_p$ with inertia degree 2 and suitable ramification index is also presented.
Bayesian Efficient Multiple Kernel Learning
Mehmet Gonen
Computer Science , 2012,
Abstract: Multiple kernel learning algorithms are proposed to combine kernels in order to obtain a better similarity measure or to integrate feature representations coming from different data sources. Most of the previous research on such methods is focused on the computational efficiency issue. However, it is still not feasible to combine many kernels using existing Bayesian approaches due to their high time complexity. We propose a fully conjugate Bayesian formulation and derive a deterministic variational approximation, which allows us to combine hundreds or thousands of kernels very efficiently. We briefly explain how the proposed method can be extended for multiclass learning and semi-supervised learning. Experiments with large numbers of kernels on benchmark data sets show that our inference method is quite fast, requiring less than a minute. On one bioinformatics and three image recognition data sets, our method outperforms previously reported results with better generalization performance.
Think Before You Act: On the IDF Withdrawal from Lebanon in 2000
Giora Eiland
Military and Strategic Affairs , 2011,
Abstract: The main questions discussed in the IDF before the 2000 withdrawal from Lebanon were whether the ghting with Hizbollah could be conducted differently, and whether the existing situation was tolerable. The IDF was of the opinion that the situation was tolerable, and that it would be possible to continue in the same manner for a long term. In fact, there was no genuine, thorough discussion of what alternatives the State of Israel had at its disposal.This article presents several facts and conclusions stemming from the Israeli withdrawal from Lebanon in 2000. It also discusses two other events that occurred after the withdrawal: the Second Lebanon War in 2006, and a relatively small yet important event, the departure of Syrian forces from Lebanon in 2005. All these events are connected to one another.
The Foundations of Israel's Response to Threats
Giora Eiland
Military and Strategic Affairs , 2010,
Abstract: The following essay suggests responses that the State of Israel – not necessarily the IDF – should provide to ve types of problems presented elsewhere in this volume: (a) the problem of Lebanon; (b) the high trajectory threat, which although it relates to Lebanon is a more general threat, as it also appears from the Gaza Strip, Syria, and Iran, and harbors great damage potential that may not have been presented in full in the preceding discussions; (c) what is the right way of prosecuting a war with Syria; (d) coping with the Iranian nuclear threat; and (e) how does one prepare for peace agreements and lines that cannot be crossed in these agreements, both with the Palestinians and the Syrians.
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