Octabutyl-1k2C,2k2C,3k2C,4k2C-di-µ3-oxo-1:2:3k3O;2:3:4k2O-di-µ2-phenoxy-1:2k2O;3:4k2O-diphenyoxy-1kO,4kO-tetratin(IV)

The dimeric title compound, tetrabutyldiphenoxydistannoxane, [Sn₄(C₄H₉)₈(C₆H₅O)₄O₂], adopts a ladder-type structure, featuring an almost planar inorganic framework with three four-membered Sn₂O₂ rings and four coplanar phenoxy groups.

A dimeric tellurastannoxane carbonate cluster, tetra-tert-butyl-di-µ3-carbonato-tetrakis-[4-(N,N-dimethylamino)phenyl]di-µ-oxo-ditelluriumditin chloroform tetrasolvate

The title compound, [Sn₂Te₂(C₄H₉)₄(CO₃)₂O₂(C₈H₁₀N)₄]·4CHCl₃ or [(p-Me₂NC₆H₄)₂TeOSn^tBu₂CO₃]₂·4CHCl₃, contains an almost planar centrosymmetric inorganic Sn₂Te₂O₈C₂ core and hypercoordinated Sn and Te atoms. The structure features four secondary intramolecular Te...O contacts.

Old buildings, new landscape : Redeveloping historic neighbourhoods - A case study of Xin Tian Di, Shanghai, China

This paper explores the use of tradition by the redevelopment project ofXin Tian Di (New Heaven and Earth) in Shanghai. The paper also identifies the implications of this urban redevelopment project to historic quarters in Chinese cities. An enormous commercial success and new Shanghai icon, Xin Tian Di project has transformed a former residential neighbourhood into a high end entertainment precinct. While the redevelopment ofXin Tian Di has retained the architectural features of the place, the use and interpretation of tradition by the project is problematic. The project shows a tendency where the established idea of tradition is destabilised and challenged. It also highlights issues of cultural authenticity in the redevelopment of historic quarters.

Polypyrrole-coated electrospun nanofibre membranes for recovery of Au(III) from aqueous solution

In this paper, for the first time, polypyrrole-coated electrospun nanofibre mats have been used as separation membranes to electrolessly recover Au from aqueous [Au(III)Cl₄]− solutions, based on a continuous-flow membrane separation process. With a [Au(III)Cl₄]− solution passing through the nanofibre membrane, the Au(III) ions were converted into elemental Au. The gold recovered was deposited on the nanofibre membranes in the form of Au particles, as confirmed by EDX and XPS measurements. It has been found that the polypyrrole-coated electrospun nanofibres are good candidate membrane material for the recovery of Au, and the recovery efficiency is affected by the membrane thickness, the permeate flux rate and the initial [Au(III)Cl₄]− concentration.

Electrospun nanofibre membranes as wound dressing materials

An effective wound dressing is not only able to protect the wound area from its surroundings to avoid infection and dehydration, but also to speed up the healing process by providing an optimum microenvironment for healing, removing any excess wound exudates, and allowing continuous tissue reconstruction. In this study, two biodegradable polymers, polycaprolactone (PCL) and polyvinyl alcohol (PVA), were used to electrospin nanofibre membranes. The wound dressing performances of these two membranes were compared with the wound dressing performances of protein coated membranes and conventional non-woven cotton wound dressings. In addition, fibre morphology, porous structural property, mechanical properties of the nanofibre membranes, and their drainage capacity and wound skin histology were examined.

Preparation of nanofibre yarns from electrospun nonwoven strips

From ancient to modern time, humans have been trying to use finer fibres to make fibrous products for various purposes and believing that finer fibres have better aesthetic qualities. So far, the commercial fibres have been reduced to microns in diameter, but it seems difficult to further reduce the fibre fineness to submicrons using conventional fibre-making techniques.
Electrospinning is a promising technique to produce continuous fibres with diameters on nanometre scales. This technique involves stretching a polymer fluid under a strong electric field into fine filaments, which are deposited randomly on the electrode collector forming a nonwoven nanofibre mat in most cases. Despite considerable efforts in exploring the applications of electrospun nanofibres in non-fibrous fields [1], very limited work has been conducted on using this material to process mechanically robust nanofibre yarns [2,3].

Konflik di Aceh konteks, pemicu, katalis

Miller traces The Roots of the Acehnese conflict to Indonesian repressive policies, specifically: exploitation of Aceh's natural resources; violence against Acehnese Civilians by Indonesian security forces; and Jakarta's failure to honor commitments to Aceh's autonomy. This contradicts the prevailing Acehnese perception of the war as a liberation struggle against colonial domination. This contradicts the prevailing Acehnese perception of the war as a Liberation struggle against colonial domination. Regional discontent in Aceh grew into separatist insurgency in the 1970s. Regional Discontent in Aceh grew into separatist insurgency in the 1970s. This provoked an increasingly martial response from the government, which involved widespread violations of Acehnese human rights. This Provoked an increasingly martial response from the government, which involved widespread violations of Acehnese human rights. East Timor's successful bid for independence in the 1990s simultaneously strengthened both Acehnese' aspirations of self-determination, and nationalists' belief in preserving Indonesia's territorial integrity. East Timor's successful bid for independence in the 1990s simultaneously strengthened both Acehnese 'aspirations of self-determination, and nationalists' belief in preserving Indonesia's territorial integrity.