Search results for "SSP"
showing 10 items of 221 documents
Stage boundaries, global stratigraphy, and the time scale: towards a simplification
2004
International audience; This paper examines four facets of stratigraphic terminology and usage considered faulty and proposes corrective measures. The four perfectible areas are: (1) The system of dual nomenclature requiring discrete terminologies for the superpositional and temporal aspects of rock units. (2) The premise that a GSSP establishes the base of a stage as being coincident with the top of the preceding stage rather than simply defining it as the boundary between stages. (3) The rejection of supplementary (auxiliary) sections that would broaden the knowledge of a GSSP and enlarge the area in which it is easily usable. (4) The current dual system of nomenclature for Precambrian an…
Scale dependence of species–area relationships is widespread but generally weak in Palaearctic grasslands
2021
Questions: Species–area relationships (SARs) are fundamental for understanding biodiversity patterns and are generally well described by a power law with a constant exponent z. However, z-values sometimes vary across spatial scales. We asked whether there is a general scale dependence of z-values at fine spatial grains and which potential drivers influence it. Location: Palaearctic biogeographic realm. Methods: We used 6,696 nested-plot series of vascular plants, bryophytes and lichens from the GrassPlot database with two or more grain sizes, ranging from 0.0001 m² to 1,024 m² and covering diverse open habitats. The plots were recorded with two widespread sampling approaches (rooted presenc…
GrassPlot – a database of multi-scale plant diversity in Palaearctic grasslands
2018
GrassPlot is a collaborative vegetation-plot database organised by the Eurasian Dry Grassland Group (EDGG) and listed in the Global Index of Vegetation-Plot Databases (GIVD ID EU-00-003). GrassPlot collects plot records (relevés) from grasslands and other open habitats of the Palaearctic biogeographic realm. It focuses on precisely delimited plots of eight standard grain sizes (0.0001; 0.001; ... 1,000 m²) and on nested-plot series with at least four different grain sizes. The usage of GrassPlot is regulated through Bylaws that intend to balance the interests of data contributors and data users. The current version (v. 1.00) contains data for approximately 170,000 plots of different sizes a…
Consensus on Postoperative Recommendations After Transsphenoidal Surgery
2018
Abstract Background Guidelines for patient behavior following transsphenoidal surgery do not exist. To gain generally recommendations, the German pituitary working group conducted a study among pituitary surgeons to elucidate their opinions and customs of patients’ counselling. Methods Questions concerning daily activities, exertion of sports and work life were addressed. It was asked to provide the postoperative time interval after which specific activities can be resumed both after a routine or an extended approach. Results Fourteen pituitary surgeons returned the completed questionnaire. Following routine operations, washing the hair was allowed within one week, blowing the nose after 3,…
Volatile Components from Aerial parts of Centaurea diffusa and C. micrantha ssp. melanosticta and their biocidal activity on microorganisms affecting…
2018
The chemical composition of the essential oils from aerial parts of two taxa of Centaurea belonging to subgenus Acrolophus, Centaurea diffusa Lam. and C. micrantha Hoff. ssp. melanosticta (Lange) Dostàl, respectively collected in Croatia and Spain, were evaluated by GC and GC-MS. The main components of C. diffusa were hexadecanoic acid (31.1%), (Z,Z)-9,12-octadecadienoic acid (10.7%) and damascenone isomers (6.4%), whereas hexahydrofarnesyl acetone (27.8%), hexadecanoic acid (8.3%) and caryophyllene oxide (6.4%) were the most abundant components of C. micrantha ssp. melanosticta. The oils showed good antibacterial and antifungal activities against some microorganisms that infest historical …
Psiholoģija (Latvijas Universitātes Raksti, 801. sēj.)
2014
Garīgās veselības veicināšanas programma. Terminu skaidrojošā vārdnīca: pirmsskola un sākumskola, 3-10 gadu vecumam
2020
Līdzfinansētājs: Eiropas Savienības Erasmus+ programma
Garīgās veselības veicināšanas programma. Terminu skaidrojošā vārdnīca: Pamatskola un vidusskola, 11-18 gadu vecumam
2020
Līdzfinansētājs: Eiropas Savienības Erasmus+ programma
Garīgās veselības veicināšana izglītības iestādēs. Vadlīnijas politikas veidotājiem
2020
Līdzfinansētājs: Eiropas Savienības Erasmus+ programma
Aminoglikozīdu klases antibiotiku sastopamība Latvijā pieejamajā medū
2017
Maģistra darbā apskatīta literatūra par aminoglikozīdu klases antibiotiku atliekvielu sastopamību medū, kā arī to izcelsmes avotiem. Izmantojot augsti efektīvo šķidruma hromatogrāfu apvienojumā ar nolidojuma laika masspektrometru, tika analizēti 49 medus paraugi no Gruzijas un 30 medus paraugi no Latvijas. Tika veikta izmantotās metodes validācija, lai pārliecinātos, ka tā atbilst Eiropas Komisijas lēmuma 2002/657/EC prasībām. Antibiotiku atliekvielu klātbūtne tika konstatēta četros medus paraugos no Gruzijas, savukārt Latvijas paraugos atliekvielas netika konstatētas.