Search results for "Bog"
showing 10 items of 148 documents
Wet Chemistry and Peptide Immobilization on Polytetrafluoroethylene for Improved Cell-adhesion
2016
Endowing materials surface with cell-adhesive properties is a common strategy in biomaterial research and tissue engineering. This is particularly interesting for already approved polymers that have a long standing use in medicine because these materials are well characterized and legal issues associated with the introduction of newly synthesized polymers may be avoided. Polytetrafluoroethylene (PTFE) is one of the most frequently employed materials for the manufacturing of vascular grafts but the polymer lacks cell adhesion promoting features. Endothelialization, i.e., complete coverage of the grafts inner surface with a confluent layer of endothelial cells is regarded key to optimal perfo…
Disentangling the effects of methanogen community and environment on peatland greenhouse gas production by a reciprocal transplant experiment
2020
Variation of fundamental constants and 229Th
2017
The first excited state of the nucleus229Th has an exceptionally small excitation energy of7.8 eV, which is expected to be very sensitive to changes in the fine structure constant α.A small difference in the Coulomb energies of the two states, which both are of the order109eV, would amplify variations in α into large variations of the transition frequency.Hartree-Fock and Hartree-Fock-Bogoliubov calculations are performed to compute theCoulomb energies of the two states. The kinetic energies are also calculated which reflecta possible variation in the nucleon or quark masses or local Lorentz invariance violation. peerReviewed
Augsto purvu apsaimniekošana bioloģiskās daudzveidības saglabāšanai Latvijā
2013
Augstie purvi Latvijā ir īpaša ekosistēma. Tie sākuši veidoties pirms apmēram 9000 gadu, līdz ar to purvi ietver informāciju par klimata un veģetācijas izmaiņām un cilvēka darbības atstātajām pēdām. Eiropas Savienībā augstā purva biotopi ir kļuvuši par prioritāri aizsargājamiem. Purvu aizsardzība ir nepieciešama, un tā jāturpina ne tikai Latvijā, bet arī citās Eiropas valstīs. Līdz ar to aktuāli ir purvu apsaimniekošanas pasākumi, kas veicina hidroloģiskā režīma stabilizēšanu un biotopu atjaunošanos.
Augstā purva biotopu atjaunošana īpaši aizsargājamās dabas teritorijās Latvijā 2010-2013
2013
Purvs ir viena no jutīgākajām dabas ekosistēmām. Projekta mērķis ir atjaunot augstā purva biotopus četru dabas liegumu – Melnā ezera purva, Aklā purva, Rožu purva, Aizkraukles purvu un mežu – degradētajās platībās un pievērst sabiedrības uzmanību Latvijas dabas vērtībām.
Augstā purva biotopu atjaunošana īpaši aizsargājamās dabas teritorijās Latvijā
2010
Purvs ir mitra dzīvotne, kurai raksturīga aktīva kūdras veidošanās. Tā ir mājvieta daudziem augiem un dzīvniekiem, kuri nespēj dzīvot citur. Neskarti augstie purvi ir rets un apdraudēts biotops Eiropā. Nosusināšana, kūdras ieguve, mežu stādīšana un zemes rekultivācija pēdējās desmitgadēs ir nelabvēlīgi ietekmējusi purvus. Meliorācijas sistēmu ietekmes dēļ Aizkraukles purvā un mežos, Aklajā, Rožu un Melnā ezera purvā purva biotopi ir izmainījušies. Projekta mērķis ir atjaunot dabisko ūdens līmeni projekta vietās – augstā purva biotopos, kurus ir ietekmējusi nosusināšana – tādējādi aizsargāt Eiropas un Latvijas nozīmes purva biotopus, augus un dzīvniekus.
After-LIFE conservation plan
2013
Main aim of the project was to re-establish hydrological regimeof natural raised bogs in four Nature Reserves. The paper shows activities have to be continued.
La condena al pago de una indemnización excesiva también vulnera la libertad de expresión del abogado
2019
El pasado día 12 de febrero del presente año, la Sección Cuarta del TEDH dictó sentencia por la que se resolvía el asunto PAIS PIRES DE LIMA contra PORTUGAL. En ella, se estimó que la elevada indemnización impuesta al demandante, abogado en ejercicio, por las críticas efectuadas a un magistrado, suponía una vulneración de su derecho a la libertad de expresión.
Newly diagnosed depression is associated with increased beta-thromboglobulin levels and increased expression of platelet activation markers and plate…
2013
Abstract Background Inflammation plays a key role in atherosclerotic disease. Up until now only limited evidence exists on the mechanism of cardiovascular complications in patients with depression. In addition depression was also linked to an increase in cardiovascular mortality. The present study was designed to evaluate the extent of platelet activation and platelet-derived markers of atherosclerotic disease in patients with newly diagnosed depression. Methods This study used whole blood aggregometry, flow cytometry and ELISA to investigate platelet CD62P (P-selectin) expression and atherosclerotic markers (CD40, CD40L) as well as serum platelet factor 4 (PF-4) and beta-thromboglobulin (β…
Occurrence of Cerebral Venous Sinus Thrombosis in Patients with Presumed Idiopathic Intracranial Hypertension
2005
Purpose To report the rate of occurrence of cerebral venous sinus thrombosis (CVST) in patients with presumed idiopathic intracranial hypertension (IIH). Design Retrospective chart review. Participants All patients diagnosed with papilledema from November 1, 2002, through October 31, 2003, at 3 tertiary care neuro-ophthalmology centers. Methods Consecutive patients with a diagnosis of papilledema from 3 tertiary care neuro-ophthalmology centers were identified. Patients with space-occupying lesions, hydrocephalus, or meningitis were excluded. The remaining patients were evaluated with lumbar puncture, magnetic resonance imaging (MRI), and magnetic resonance venography (MRV). Main Outcome Me…