Cr-Hollandite: Breaking Tradition with Todorokite-type Manganese Oxides

The synthesis of a tunneled hollandite-type manganese oxide with interstitial and framework Cr3+ is described. This unique material is prepared from a layered buserite precursor under conditions previously believed to only yield todorokite-type manganese oxides with larger tunnels. The influence of Cr3+ in promoting the hollandite structure has been investigated by selectively placing the cation either in interstitial or framework sites. The use of framework Cr3+ in combination with other interstitial cations generates related hollandite and todorokite derivatives. Catalytic oxidation reactions with benzyl alcohol and carbon monoxide have also been examined

Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

Search for supersymmetry in events with one lepton and multiple jets in proton-proton collisions at root s=13 TeV

Peer reviewe

Search for anomalous couplings in boosted WW/WZ -> l nu q(q)over-bar production in proton-proton collisions at root s=8TeV

Peer reviewe

Inclusive search for supersymmetry using razor variables in pp collisions at root s=13 TeV

Peer reviewe

A Combined DFT and NMR Investigation of the Zinc Organometallic Intermediate Proposed in the Syn-Selective Tandem Chain Extension-Aldol Reaction of β‑Keto Esters

The tandem chain extension–aldol (TCA) reaction of β-keto esters provides an α-substituted γ-keto ester with an average syn:anti selectivity of 10:1. It is proposed that the reaction proceeds via a carbon–zinc bound organometallic intermediate potentially bearing mechanistic similarity to the Reformatsky reaction. Evidence, derived from control Reformatsky reactions and a study of the structure of the TCA intermediate utilizing DFT methods and NMR spectroscopy, suggests the γ-keto group of the TCA intermediate plays a significant role in diastereoselectivity observed in this reaction. Such coordination effects have design implications for future zinc mediated reactions

An analysis of Gulliver's Travels: the power of satire from 1726 to 2017

Treball Final de Grau en Estudis Anglesos. Codi: EA0938. Curs acadèmic: 2016/2017Satire is a literary mode that intends to describe the world by means of parody, irony and sarcasm. Although the main goal of Jonathan Swift when writing Gulliver’s Travels was to satirise the society he was living in, the book is currently considered as a simple children’s tale. Since its publication, multiple analysis have been performed with the aim of revealing Swift’s primary intentions and to identify the resemblance between Gulliver’s adventures and the sociopolitical scene in England during the seventeenth century. Firstly, this paper provides a definition of satire and an explanation of Swift’s writing style in order to achieve a deeper understanding of Gulliver’s Travels. Then, it conducts a revision of previous studies which are concerned with the satiric evidences in the book. The analysis, focusing on political satire and satire on humankind, draws analogies between the Remote Nations discovered by Gulliver and the English society. On the basis of this study a current reading of Gulliver’s Travels is going to be proposed in which today’s British society will be the target of satire. Finally, in such way, it will possible to reflect upon the current situation of the United Kingdom, as well as to underline the transcendental character of literature

A Combined DFT and NMR Investigation of the Zinc Organometallic Intermediate Proposed in the <i>Syn</i>-Selective Tandem Chain Extension–Aldol Reaction of β-Keto Esters

The tandem chain extension–aldol (TCA) reaction of β-keto esters provides an α-substituted γ-keto ester with an average <i>syn</i>:<i>anti</i> selectivity of 10:1. It is proposed that the reaction proceeds via a carbon–zinc bound organometallic intermediate potentially bearing mechanistic similarity to the Reformatsky reaction. Evidence, derived from control Reformatsky reactions and a study of the structure of the TCA intermediate utilizing DFT methods and NMR spectroscopy, suggests the γ-keto group of the TCA intermediate plays a significant role in diastereoselectivity observed in this reaction. Such coordination effects have design implications for future zinc mediated reactions

A Combined DFT and NMR Investigation of the Zinc Organometallic Intermediate Proposed in the <i>Syn</i>-Selective Tandem Chain Extension–Aldol Reaction of β-Keto Esters

The tandem chain extension–aldol (TCA) reaction of β-keto esters provides an α-substituted γ-keto ester with an average <i>syn</i>:<i>anti</i> selectivity of 10:1. It is proposed that the reaction proceeds via a carbon–zinc bound organometallic intermediate potentially bearing mechanistic similarity to the Reformatsky reaction. Evidence, derived from control Reformatsky reactions and a study of the structure of the TCA intermediate utilizing DFT methods and NMR spectroscopy, suggests the γ-keto group of the TCA intermediate plays a significant role in diastereoselectivity observed in this reaction. Such coordination effects have design implications for future zinc mediated reactions

A Combined DFT and NMR Investigation of the Zinc Organometallic Intermediate Proposed in the <i>Syn</i>-Selective Tandem Chain Extension–Aldol Reaction of β-Keto Esters

The tandem chain extension–aldol (TCA) reaction of β-keto esters provides an α-substituted γ-keto ester with an average <i>syn</i>:<i>anti</i> selectivity of 10:1. It is proposed that the reaction proceeds via a carbon–zinc bound organometallic intermediate potentially bearing mechanistic similarity to the Reformatsky reaction. Evidence, derived from control Reformatsky reactions and a study of the structure of the TCA intermediate utilizing DFT methods and NMR spectroscopy, suggests the γ-keto group of the TCA intermediate plays a significant role in diastereoselectivity observed in this reaction. Such coordination effects have design implications for future zinc mediated reactions