Search results for "olut"

On the Sub-Supersolution Approach for Dirichlet Problems driven by a (p(x), q(x))-Laplacian Operator with Convection Term

2021

The method of sub and super-solution is applied to obtain existence and location of solutions to a quasilinear elliptic problem with variable exponent and Dirichlet boundary conditions involving a nonlinear term f depending on solution and on its gradient. Under a suitable growth condition on the convection term f, the existence of at least one solution satisfying a priori estimate is obtained.

Reverse Catmull-Clark Subdivision

2006

Reverse subdivision consists in constructing a coarse mesh of a model from a finer mesh of this same model. In this paper, we give formulas for reverse Catmull-Clark subdivision. These formulas allow the constructing of a coarse mesh for almost all meshes. The condition for being able to apply these formulas is that the mesh to be reversed must be generated by the subdivision of a coarse mesh. Except for this condition, the mesh can be arbitrary. Vertices can be regular or extraordinary and the mesh itself can be arbitrary (triangular, quadrilateral…).

The hypothetical ancestral animal the Urmetazoa: Telomerase activity in sponges [Porifera]

2003

Sponges (Porifera) represent the lowest metazoan phylum, characterized by a pronounced plasticity in the determination of cell lineages, and they are the closest related taxon to the hypothetical ancestral animal, the Urmetazoa, from which the metazoan lineages diverged. In a first approach to elucidate the molecular mechanisms controlling the switch from the cell lineage with a putative indefinite growth capacity to senescent, somatic cells, the activity of the telomerase as an indicator for immortality has been determined. The studies were performed with the marine demosponges Suberites domuncula and Geodia cydonium, in vivo with tissue but also in vitro using the primmorph system. Primmo…

Chemical composition of the essential oil of Centaurea grinensis Reuter and Centaurea apiculata Ledeb: Growing wild in Croatia and Bulgaria, respecti…

2016

AbstractIn the present study, the chemical composition of the essential oils from aerial parts of Centaurea grinensis Reuter (K) collected at Žuta Lova, near Senj (Croatia), and aerial parts (L1) and flowers (L2) of C. apiculata Ledeb. collected near Rebro village, near Breznik town, Znepole Region (Bulgaria), both belonging to subgenus Lopholoma (Cass.) Dobrocz, was evaluated by GC and GC-MS. The main components of K were 4-vinyl guaiacol (21.5%), hexadecanoic acid (16.2%), acetophenone (12.5%). Caryophyllene oxide (15.8%) together with sphathulenol (14.5%) and humulene epoxide II (9.4%) were recognized as the main constituent of both the aerial part (L1) and flowers (L2) of C. apiculata. …

El trabajo del espíritu. Hegel y la Modernidad [Prefaci]

2001

Los ensayos que se reúnen en este libro abordan diferentes aspectos del idealismo de Hegel, con el propósito de presentar su proyecto filosófico como un cierre de algunos problemas metafísicos y epistemológicos recibidos de la tradición filosófica de la Modernidad, entre los cuales se incluyen: la constitución del saber experiencial como síntesis dialéctica de certeza y verdad, la superación de la oposición sujeto-objeto planteada por las filosofías de la conciencia, la conceptualización de la totalidad absoluta como sujeto, la unificación de razón y realidad más allá de los enfoques criticistas, y la síntesis de causalidad y teleología en la concepción especulativa de la naturaleza.

Location of solutions for quasi-linear elliptic equations with general gradient dependence

2017

Existence and location of solutions to a Dirichlet problem driven by $(p,q)$-Laplacian and containing a (convection) term fully depending on the solution and its gradient are established through the method of subsolution-supersolution. Here we substantially improve the growth condition used in preceding works. The abstract theorem is applied to get a new result for existence of positive solutions with a priori estimates.

Cosolutes affect structure and dynamics of myoglobin-trehalose amorphous systems: a FTIR and MD study

2013

Biologinen sukupuoli

2020

Biologinen sukupuoli on luonnostaan monitahoinen ilmiö. Epämääräinen kielenkäyttö tekee siitä kuitenkin tarpeettoman hämärän. Epämääräisyys voi sataa tiedevastaisten laariin ja syödä osaltaan tieteen arvostusta kansan keskuudessa. Sukupuoli on suvullisen lisääntymisen ja siten myös biologian perusyksikkö. Viime vuosina sukupuolen käsite on yhteiskunnallistunut keskusteluissa sukupuolivähemmistöjen oikeuksista. Keskustelu paljasti, että sukupuoli tarvitsee yleistajuista biologista jäsennystä. nonPeerReviewed

Last millennium northern hemisphere summer temperatures from tree rings: Part I: The long term context

2016

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала. Large-scale millennial length Northern Hemisphere (NH) temperature reconstructions have been progressively improved over the last 20 years as new datasets have been developed. This paper, and its companion (Part II, Anchukaitis et al. in prep), details the latest tree-ring (TR) based NH land air temperature reconstruction from a temporal and spatial perspective. This work is the first product of a consortium called N-TREND (Northern Hemisphere Tree-Ring Network Development) which brings together dendroclimatologists to identify a collective strategy for improving large-scale summer temperature reconstructions…

Parasite avoidance behaviours in aquatic environments

2018

Parasites, including macroparasites, protists, fungi, bacteria and viruses, can impose a heavy burden upon host animals. However, hosts are not without defences. One aspect of host defence, behavioural avoidance, has been studied in the terrestrial realm for over 50 years, but was first reported from the aquatic environment approximately 20 years ago. Evidence has mounted on the importance of parasite avoidance behaviours and it is increasingly apparent that there are core similarities in the function and benefit of this defence mechanism between terrestrial and aquatic systems. However, there are also stark differences driven by the unique biotic and abiotic characteristics of terrestrial …