title: New Sb₁₂ and Sb₁₄ Polyoxometalate Frameworks Derived from Arylstibonic Acids: [LiH₃(p-MeC₆H₄Sb)₁₂O₂₈]⁴⁻ and [BaH₁₀(p-MeC₆H₄Sb)₁₄O₃₄]

authors: Nicholson, Brian K.

subjects: chemistry

abstract: The lithium salt of p-tolylstibonic acid contains the anion [LiH₃(p-MeC₆H₄Sb)₁₂O₂₈]⁴⁻, in which the Li⁺ is fully enclosed within an {Sb₁₂O₂₈} cage with γ Keggin ion geometry; the idealized overall formula is Li₅[LiH₃(p-MeC₆H₄Sb)₁₂O₂₈]Br•18H₂O. In contrast, Ba²⁺ induces the formation of the unprecedented {Sb₁₄O₃₄} bowl-shaped polyoxostibonate [BaH₁₀(p-MeC₆H₄Sb)₁₄O₃₄]•4H₂O. Compounds were characterized by single-crystal X-ray crystallography and by ESI-MS.

text: New Sb₁₂ and Sb₁₄ Polyoxometalate Frameworks Derived from Arylstibonic Acids: [LiH₃(p-MeC₆H₄Sb)₁₂O₂₈]⁴⁻ and [BaH₁₀(p-MeC₆H₄Sb)₁₄O₃₄] The lithium salt of p-tolylstibonic acid contains the anion [LiH₃(p-MeC₆H₄Sb)₁₂O₂₈]⁴⁻, in which the Li⁺ is fully enclosed within an {Sb₁₂O₂₈} cage with γ Keggin ion geometry; the idealized overall formula is Li₅[LiH₃(p-MeC₆H₄Sb)₁₂O₂₈]Br•18H₂O. In contrast, Ba²⁺ induces the formation of the unprecedented {Sb₁₄O₃₄} bowl-shaped polyoxostibonate [BaH₁₀(p-MeC₆H₄Sb)₁₄O₃₄]•4H₂O. Compounds were characterized by single-crystal X-ray crystallography and by ESI-MS.

year: 2011

title: Improving Bag-of-Words model with spatial information

authors: Zhang, Edmond Yiwen

subjects: Bags-of-words

abstract: Bag-of-Words (BOW) models have recently become popular for the task of object recognition, owing to their good performance and simplicity. Much work has been proposed over the years to improve the BOW model, where the Spatial Pyramid Matching technique is the most notable. In this work, we propose three novel techniques to capture more re_ned spatial information between image features than that provided by the Spatial Pyramids. Our techniques demonstrate a performance gain over the Spatial Pyramid representation of the BOW model.

text: Improving Bag-of-Words model with spatial information Bag-of-Words (BOW) models have recently become popular for the task of object recognition, owing to their good performance and simplicity. Much work has been proposed over the years to improve the BOW model, where the Spatial Pyramid Matching technique is the most notable. In this work, we propose three novel techniques to capture more re_ned spatial information between image features than that provided by the Spatial Pyramids. Our techniques demonstrate a performance gain over the Spatial Pyramid representation of the BOW model.

year: 2010

title: Issues in Maori Language Planning and Revitalisation

authors: Harlow, Ray

subjects: Te reo Māori

abstract: All languages which have undergone changes of status in the course of their histories have been the subject of language planning, be this consistent or piecemeal, officially driven or diffuse. In some cases, the processes have been and are still relatively ‘painless’ or even subliminal, at least as far as much of the population speaking the language is concerned. English is an extreme case in this respect, so that Ayto (1983) is able to speak of the ‘failure of language reform’ as a striking characteristic of its history. Many of the issues which could potentially be associated with its position in both the world and in particular countries do not, to all intents and purposes, arise. They have been dealt with by history; the way English works as a lingua franca, as an official language, as an international language in a variety of domains and regions, its spelling systems, its vocabulary, just ‘growed’, with only sporadic help from conscious planning.

text: Issues in Maori Language Planning and Revitalisation All languages which have undergone changes of status in the course of their histories have been the subject of language planning, be this consistent or piecemeal, officially driven or diffuse. In some cases, the processes have been and are still relatively ‘painless’ or even subliminal, at least as far as much of the population speaking the language is concerned. English is an extreme case in this respect, so that Ayto (1983) is able to speak of the ‘failure of language reform’ as a striking characteristic of its history. Many of the issues which could potentially be associated with its position in both the world and in particular countries do not, to all intents and purposes, arise. They have been dealt with by history; the way English works as a lingua franca, as an official language, as an international language in a variety of domains and regions, its spelling systems, its vocabulary, just ‘growed’, with only sporadic help from conscious planning.

year: 2003-02