20,119 research outputs found
‘ĀʼIsha Bint Al-Shāṭi's Thoughts on Tarāduf and Their Implications for the Istinbāṭ of Law
Full text linkAs a book containing miracles, in literature, the miracles of the Quran have been proven by ʻĀʼisha Bint al-Shāṭiʼ through her theory i‘jāz lughawī. She showed the importance of the correct method of interpretation of the Qurʼan from aspects of tarāduf (synonym). However, despite following the rule of "there is no word that has the same meaning (tarāduf) in the Quran" as commonly known in the theory of iʻjāz al-qur'ān (the inimitability of the Qurʼān), her thoughts on tarāduf and their implications for the istinbāṭ (inference) of Islamic law are still unclear. Hence, this article discusses the relation and influence of ʻĀʼisha Bint al-Shāṭiʼs thoughts related to verses of laws. By studying the book of al-I'jāz al-Bayānī lil Qur`ān wa Masā'il Ibn al-Azraq and other relevance sources, this article concludes that ʻĀʼisha Bint al-Shāṭiʼs thoughts related to verses of law are still abstract and difficult to be applied, hence it does not give a significant influence on the strengthening of Islamic legal propositions
Security and Privacy Issues in Cloud Computing
Full text linkCloud computing transforming the way of information technology (IT) for consuming and managing, promising improving cost efficiencies, accelerate innovations, faster time-to-market and the ability to scale applications on demand (Leighton, 2009). According to Gartner, while the hype grew ex-ponentially during 2008 and continued since, it is clear that there is a major shift towards the cloud computing model and that the benefits may be substantial (Gartner Hype-Cycle, 2012). However, as the shape of the cloud computing is emerging and developing rapidly both conceptually and in reality, the legal/contractual, economic, service quality, interoperability, security and privacy issues still pose significant challenges. In this chapter, we describe various service and deployment models of cloud computing and identify major challenges. In particular, we discuss three critical challenges: regulatory, security and privacy issues in cloud computing. Some solutions to mitigate these challenges are also proposed along with a brief presentation on the future trends in cloud computing deployment
Modal analysis of wave propagation in dispersive media
Full text linkSurveys on wave propagation in dispersive media have been limited since the
pioneering work of Sommerfeld [Ann. Phys. 349, 177 (1914)] by the presence of
branches in the integral expression of the wave function. In this article, a
method is proposed to eliminate these critical branches and hence to establish
a modal expansion of the time-dependent wave function. The different components
of the transient waves are physically interpreted as the contributions of
distinct sets of modes and characterized accordingly. Then, the modal expansion
is used to derive a modified analytical expression of the Sommerfeld precursor
improving significantly the description of the amplitude and the oscillating
period up to the arrival of the Brillouin precursor. The proposed method and
results apply to all waves governed by the Helmholtz equations.Comment: 10 pages, 9 figure
Glyphosate reduced seed and leaf concentrations of calcium, manganese, magnesium, and iron in non-glyphosate resistant soybean
Get PDFGreenhouse experiments were conducted to study the effects of glyphosate drift on plant growth and concentrations of mineral nutrients in leaves and seeds of non-glyphosate resistant soybean plants (Glycine max, L.). Glyphosate was sprayed on plant shoots at increasing rates between 0.06 and 1.2% of
the recommended application rate forweed control. In an experiment with 3-week-old plants, increasing application of glyphosate on shoots significantly reduced chlorophyll concentration of the young leaves and shoots dry weight, particularly the young parts of plants. Concentration of shikimate due to increasing glyphosate rates was nearly 2-fold for older leaves and 16-fold for younger leaves compared to the control plants without glyphosate spray. Among the mineral nutrients analyzed, the leaf concentrations
of potassium (K), phosphorus (P), copper (Cu) and zinc (Zn) were not affected, or even increased significantly
in case of P and Cu in young leaves by glyphosate, while the concentrations of calcium (Ca),
manganese (Mn) and magnesium (Mg) were reduced, particularly in young leaves. In the case of Fe, leaf
concentrations showed a tendency to be reduced by glyphosate. In the second experiment harvested at
the grain maturation, glyphosate application did not reduce the seed concentrations of nitrogen (N), K, P,
Zn and Cu. Even, at the highest application rate of glyphosate, seed concentrations of N, K, Zn and Cuwere
increased by glyphosate. By contrast, the seed concentrations of Ca, Mg, Fe and Mn were significantly
reduced by glyphosate. These results suggested that glyphosatemay interfere with uptake and retranslocation
of Ca, Mg, Fe and Mn, most probably by binding and thus immobilizing them. The decreases in
seed concentration of Fe, Mn, Ca and Mg by glyphosate are very specific, and may affect seed quality
Collider Effects of Unparticle Interactions in Multiphoton Signals
Get PDFA new model of physics, with a hidden conformal sector which manifests itself
as an unparticle coupling to Standard Model particles effectively through
higher dimensional operators, predicts strong collider signals due to
unparticle self-interactions. We perform a complete analysis of the most
spectacular of these signals at the hadron collider, pp -> 4photon and pp
->2photon,2gluon. These processes can go through the three-point unparticle
self interactions as well as through some s and t channel diagrams with one
and/or two unparticle exchanges. We study the contributions of individual
diagrams classified with respect to the number of unparticle exchanges and
discuss their effect on the cross sections at the Tevatron and the LHC. We also
restrict the Tevatron bound on the unknown coefficient of the three-point
unparticle correlator. With the availability of data from Tevatron, and the
advent of the data emerging from the LHC, these interactions can provide a
clear and strong indication of unparticle physics and distinguish this model
from other beyond the standard model scenarios.Comment: 28 pages, 16 figure
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