Spherical collapse of a heat conducting fluid in higher dimensions without horizon

We consider a scenario where the interior spacetime,described by a heat conducting fluid sphere is matched to a Vaidya metric in higher dimensions.Interestingly we get a class of solutions, where following heat radiation the boundary surface collapses without the appearance of an event horizon at any stage and this happens with reasonable properties of matter field.The non-occurrence of a horizon is due to the fact that the rate of mass loss exactly counterbalanced by the fall of boundary radius.Evidently this poses a counter example to the so-called cosmic censorship hypothesis.Two explicit examples of this class of solutions are also given and it is observed that the rate of collapse is delayed with the introduction of extra dimensions.The work extends to higher dimensions our previous investigation in 4D.Comment: 6 page

The culture of care within psychiatric services: tackling inequalities and improving clinical and organisational capabilities.

INTRODUCTION: Cultural Consultation is a clinical process that emerged from anthropological critiques of mental healthcare. It includes attention to therapeutic communication, research observations and research methods that capture cultural practices and narratives in mental healthcare. This essay describes the work of a Cultural Consultation Service (ToCCS) that improves service user outcomes by offering cultural consultation to mental health practitioners. The setting is a psychiatric service with complex and challenging work located in an ethnically diverse inner city urban area. Following a period of 18 months of cultural consultation, we gather the dominant narratives that emerged during our evaluation of our service. RESULTS: These narratives highlight how culture is conceptualized and acted upon in the day-to-day practices of individual health and social care professionals, specialist psychiatric teams and in care systems. The findings reveal common narratives and themes about culture, ethnicity, race and their perceived place and meaningfulness in clinical care. These narratives express underlying assumptions and covert rules for managing, and sometimes negating, dilemmas and difficulties when considering "culture" in the presentation and expression of mental distress. The narratives reveal an overall "culture of understanding cultural issues" and specific "cultures of care". These emerged as necessary foci of intervention to improve service user outcomes. CONCLUSION: Understanding the cultures of care showed that clinical and managerial over-structuring of care prioritises organisational proficiency, but it leads to inflexibility. Consequently, the care provided is less personalised and less accommodating of cultural issues, therefore, professionals are unable to see or consider cultural influences in recovery

Gravitacijsko polje mirnog globalnog monopola u višoj dimenziji

In this paper, we study the gravitational field of a non-stationary global monopole in higher dimension by using field-theoretic energy-momentum tensors for monopole configuration. The solutions are obtained using the functional separability of the metric coefficients. We have shown that the monopole exerts attractive gravitational effects on test particles.U ovom radu proučavamo gravitacijsko polje mirnog globalnog monopola kojega oblikujemo u više-dimenzijskom prostoru primjenom tenzora energije-impulsa teorije polja. Rješenja postižemo rabeći funkcijsku razdvojivost metričkih koeficijenata. Pokazujemo da monopol proizvodi privlačan gravitacijski učinak

Construction of 3D wormhole supported by phantom energy

In this article, we have found a series solution of 3D Einstein equations describing a wormhole for an inhomogeneous distribution of phantom energy. Here, we assume equation of state is linear but highly anistropic.Comment: 9 papge, 4 figures. Accepted for publication in Physica Script

Bezvakuumski globalni monopol u Einstein-Cartanovoj teoriji

We analyze the gravitational field of vacuumless global monopole in the context of Einstein-Cartan theory under the weak field assumption of the field equations. It has been shown that global monopole exerts attractive gravitational force on a test particle. This effect is absent in general relativity.Analiziramo gravitacijsko polje bezvakuumskog globalnog monopola u okviru Einstein–Cartanove teorije, uzevši pretpostavku slabog polja u jednadžbama polja. Pokazuje se da globalni monopol proizvodi privlačnu gravitacijsku silu na ispitnu česticu. Takvog učinka nema u općoj teoriji relativnosti