Urban heritage conservation and rapid urbanization : insights from Surat, India

Currently, heritage is challenged in the Indian city of Surat due to diverse pressures,  including rapid urbanization, increasing housing demand, and socio‐cultural and climate changes.  Where rapid demographic growth of urban areas is happening, heritage is disappearing at an  alarming rate. Despite some efforts from the local government, urban cultural heritage is being  neglected and historic buildings keep being replaced by ordinary concrete buildings at a worryingly  rapid pace. Discussions of challenges and issues of Surat’s urban area is supported by a qualitative  dataset, including in‐depth semi‐structured interviews and focus groups with local policy makers,  planners, and heritage experts, triangulated by observation and a photo‐survey of two historic  areas. Findings from this study reveal a myriad of challenges such as: inadequacy of urban  conservation management policies and processes focused on heritage, absence of skills, training,  and resources amongst decision makers and persistent conflict and competition between heritage  conservation needs and developers’ interests. Furthermore, the values and significance of Surat’s  tangible and intangible heritage is not fully recognized by its citizens and heritage stakeholders. A  crucial opportunity exists for Surat to maximize the potential of heritage and reinforce urban  identity for its present and future generations. Surat’s context is representative of general trends  and conservation challenges and therefore recommendations developed in this study hold the  potential to offer interesting insights to the wider planners and conservationists’ international  community.  This  paper  recommends  thoughtful  integration  of  sustainable  heritage  urban  conservation into local urban development frameworks and the establishment of approaches that  recognize the plurality of heritage values

Constraints on nuclear matter parameters of an Effective Chiral Model

Within an effective non-linear chiral model, we evaluate nuclear matter parameters exploiting the uncertainties in the nuclear saturation properties. The model is sternly constrained with minimal free parameters, which display the interlink between nuclear incompressibility ($K$), the nucleon effective mass ($m^{\star}$), the pion decay constant ($f_{\pi}$) and the $\sigma-$meson mass ($m_{\sigma}$). The best fit among the various parameter set is then extracted and employed to study the resulting Equation of state (EOS). Further, we also discuss the consequences of imposing constraints on nuclear EOS from Heavy-Ion collision and other phenomenological model predictions.Comment: 10 pages, 8 figure

Dvostruka ionizacija bakra udarom elektrona

Electron-impact double ionization of copper has been investigated in the modified double-binary-encounter model. For the first time, Hartree-Fock velocity distribution has been used while considering ejection of both electrons from the target in binary-encounter calculations. Contribution of Auger emission, which is considered to be dominant at high impact energies, is also included in the calculations. The present results have been compared with the recent experimental measurement of Bolorizadeh et al. and semi-empirical calculations of Belenger et al. The semi-empirical calculations are found to overestimate the cross-sections. The present results are in satisfactory agreement with the experimental observations.Istražili smo dvostruku ionizaciju bakra udarom elektrona u izmijenjenom modelu dvojnih binarnih sudara. Prvi se puta u razmatranjima izbacivanja dvaju elektrona iz mete u binarnim sudarima primjenjuje Hartree-Fockova raspodjela brzina. Doprinos Augerove emisije, koji dominira na višim udarnim energijama, također smo uključili u račun. Dobiveni se ishodi računa uspoređuju s nedavnim mjerenjima Bolorizadeha i sur. i poluempirijskim računima Belengera i sur. Nalazimo da poluempirijski računi precjenjuju udarne presjeke. Naši su ishodi računa u dobrom skladu s eksperimentalnim vrijednostima