Search results for "NPE"

The Karsikko and Cross-Tree Tradition of Finland The Origins, Change and End of the Custom

1993

According to an East -Finnish custom that came to an end around the beginning of the 20th century, the karsikko (conifer shorn of branches) and the cross-tree were prepared when the deceased was taken for burial. The Roman-Catholic Church and the Reformation introduced into folk beliefs the idea that the deceased did not journey all the way to the community of the dead. Restoring the social order of the community that had been disturbed by death then required that the dead be placed in the intermediary stage dictated by the tripartite division of the rite of passage in status. It was also necessary to establish a boundary between the living and the dead as a precaution against the undesired…

Tavoitteena vahva ja yhtenäinen kansa : historia ja kieli kansallisen identiteetin rakentamisen välineinä Pätsin aikakauden Virossa 1934-1940

2018

In this dissertation, I study national campaigns aimed at constructing Estonian national identity in 1934–1940. The campaigns were organized through the cooperation of Konstantin Päts’ authoritarian government and civil society. I focus on the folk art campaign and on the name changing campaign. The name changing campaign was the largest national project in Estonia, aiming at the Estonification of names. Initially, the campaign focused on changing individuals’ surnames and first names, but later also on changing the names of places, streets and properties. The name changing campaign had history political and language political dimensions. Through the folk art campaign, the state tried to af…

Large-N kinetic theory for highly occupied systems

2018

We consider an effective kinetic description for quantum many-body systems, which is not based on a weak-coupling or diluteness expansion. Instead, it employs an expansion in the number of field components N of the underlying scalar quantum field theory. Extending previous studies, we demonstrate that the large-N kinetic theory at next-to-leading order is able to describe important aspects of highly occupied systems, which are beyond standard perturbative kinetic approaches. We analyze the underlying quasiparticle dynamics by computing the effective scattering matrix elements analytically and solve numerically the large-N kinetic equation for a highly occupied system far from equilibrium. T…

Complete gangrene of penis in patient with arterial vascular disease.

2004

We present a clinical case of distal penile gangrene in a patient with peripheral vaso-occlusive disease that did not correlate with the extension of the intraoperative finding and required total penectomy. Surgical intervention at the onset of wet gangrene avoids the complication of sepsis.

Gaussian effective potential for the standard model SU(2)×U(1) electroweak theory

2008

The Gaussian effective potential is derived for the non-Abelian SU(2)×U(1) gauge theory of electroweak interactions. At variance with naive derivations, the Gaussian effective potential is proven to be a genuine variational tool in any gauge. The role of ghosts is discussed and the unitarity gauge is shown to be the only choice which allows calculability without insertion of further approximations. The full non-Abelian calculation confirms the existence of a light Higgs boson in the nonperturbative strong coupling regime of the Higgs sector.

The Role of Endoscopy in the Treatment of Acute Traumatic Anterior Epidural Hematoma of the Cervical Spine: Case Report

1997

OBJECTIVE AND IMPORTANCE: Epidural hematoma (EDH) of the spine represents an uncommon neurosurgical disorder that sometimes requ;res emergent surgical decompressive therapy. Traumatic EDH of the cervical spine is exceedingly rare. The hematoma is usually located dorsally in the epidural space. We present one case of acute EDH located ventrally in the cervical spine. Special emphasis is placed on the role of spinal endoscopy in surgical treatment. CLINICAL PRESENTATION: After a fall from a tree, a 69-year-old man with rapidly increasing tetraparesis was referred to our institution. Plain films of the cervical spine revealed nothing abnormal. The results of computed tomography were highly sus…

Latvijas ūdeņu vides pētījumi un aizsardzība: referātu tēžu krājums (Rīga, 2014.gada 31.janvāris)

2014

Non-equilibrium dynamics of a scalar field with quantum backreaction

2021

We study the dynamical evolution of coupled one- and two-point functions of a scalar field in the 2PI framework at the Hartree approximation, including backreaction from out-of-equilibrium modes. We renormalize the 2PI equations of motion in an on-shell scheme in terms of physical parameters. We present the Hartree-resummed renormalized effective potential at finite temperature and critically discuss the role of the effective potential in a non-equilibrium system. We follow the decay and thermalization of a scalar field from an initial cold state with all energy stored in the potential, into a fully thermalized system with a finite temperature. We identify the non-perturbative processes of …

On the zero crossing of the three-gluon vertex

2016

We report on new results on the infrared behaviour of the three-gluon vertex in quenched Quantum Chormodynamics, obtained from large-volume lattice simulations. The main focus of our study is the appearance of the characteristic infrared feature known as 'zero crossing', the origin of which is intimately connected with the nonperturbative masslessness of the Faddeev-Popov ghost. The appearance of this effect is clearly visible in one of the two kinematic configurations analyzed, and its theoretical origin is discussed in the framework of Schwinger-Dyson equations. The effective coupling in the momentum subtraction scheme that corresponds to the three-gluon vertex is constructed, revealing t…

Non-supersymmetric AdS6 and the swampland

2021

We discuss infinite families of non-supersymmetric AdS$_6$ solutions in Type IIB string theory. They are siblings of supersymmetric solutions which are associated with $(p,q)$ 5-brane webs and holographically dual to 5d SCFTs engineered by those brane webs. The non-supersymmetric backgrounds carry identical 5-brane charges and are connected to the supersymmetric ones by RG flows. We study the stability of the non-supersymmetric solutions, identifying perturbative and non-perturbative decay channels for all the backgrounds explicitly available. We also identify likely decay mechanisms for solutions that have not been constructed explicitly but may be expected to exist based on brane web cons…