Results 101 to 110 of about 4,929 (191)

Jadeite in Continental Subduction: Its Preservation, Breakdown and Pseudomorphic Replacement in Erzgebirge UHP Gneisses

open access: yesJournal of Metamorphic Geology, EarlyView.
ABSTRACT The absence of jadeite in regions where subduction of continental crust has been documented by other high‐pressure (HP) or ultrahigh‐pressure (UHP) minerals is striking. This study presents only the second discovery of jadeite in the crystalline rocks of the Erzgebirge, a region known for its occurrences of microdiamond, coesite and omphacite ...
Ondrej Lexa   +3 more
wiley   +1 more source

Konstytucyjna zasada autonomii uniwersytetów na przykładzie Hiszpanii [PDF]

open access: yes, 2011
This paper focuses on the autonomy of universities in Spain. Research on this subject is justified as the Spanish higher education model is a good illustration of a decentralised education system and, as such, may be used to analyse the links between the
Stachowiak-Kudła, Monika
core   +1 more source

The dental plate on bichir pectoral fins: A unique dermal skeletal element bearing individual odontodes with tooth‐like replacement

open access: yesJournal of Anatomy, EarlyView.
Pectoral fins of bichirs encompass the so‐called dental plates – unique dermal skeletal elements with individual odontodes identical to the oral teeth. Abstract The dermal skeleton appeared early in vertebrate evolution in the form of mineralized skin denticles composed of tooth‐like units—odontodes.
Tomáš Suchánek   +2 more
wiley   +1 more source

Dwa lata później: uwagi o reformach w szkolnictwie wyższym i w nauce [PDF]

open access: yes, 2016
The Author discusses dilemmas, difficulties and effects of the higher education and scientific institutions reform, that was launched two years ago.
Amsterdamski, Stefan
core   +1 more source

Novel Hydrurus species (Chrysophyceae) and their adaptations to high‐altitude European and Arctic snowfields

open access: yesJournal of Phycology, EarlyView.
Abstract Colored snow caused by green algae (Chlorophyceae) is well known, but melting snowpacks can also harbor golden‐brown blooms consisting of Chrysophyceae. We collected 14 samples of cryoflora in the Austrian and Swiss Alps, the High Tatras in Slovakia, and in Arctic Svalbard. Eight laboratory unicellular flagellated strains were established from
Lenka Procházková   +6 more
wiley   +1 more source

Epitypification of Merismopedia tranquilla (Cyanobacteria) prompts phylogenetic reassessment of the genus and the description of two morphologically similar genera

open access: yesJournal of Phycology, EarlyView.
Abstract The genus Merismopedia is morphologically characterized by its distinctive colony arrangement yet exhibits considerable variability among species. Recent studies suggested that Merismopedia is polyphyletic, and its most likely true lineage was provisionally placed within the Microcystaceae. However, the available molecular data for most of the
Jan Pokorný   +2 more
wiley   +1 more source

PWO proteins are associated with PRC2 since their emergence in vascular plants

open access: yesNew Phytologist, EarlyView.
Summary The Polycomb repressive complex 2 (PRC2), a conserved histone methyltransferase complex, plays a central role in transcriptional silencing across eukaryotes. Here, we investigate the evolution of PWWP‐DOMAIN INTERACTORS OF POLYCOMBS (PWOs), which interact with PRC2, and examine the conservation of the PWOs‐PRC2 interaction across plant ...
Ahamed Khan   +11 more
wiley   +1 more source

Sylvisorex granti Thomas 1907

open access: yes, 1993
Sylvisorex granti Thomas, 1907. Ann. Mag. Nat. Hist., ser. 7, 19:118. TYPE LOCALITY: Uganda, Ruwenzori East, Mubuku Valley, 10,000 ft. (3,048 m). DISTRIBUTION: Mountain forests of C (Zaire, Uganda, Rwanda) and E Africa (Kenya, Tanzania); an isolated population in Cameroon. SYNONYMS: camerunensis, mundus.
openaire   +1 more source

Cytokinin downregulates Photosystem II photochemistry during prolonged darkness in a phytochrome B‐dependent manner

open access: yesNew Phytologist, EarlyView.
Cytokinin–phyB signaling modulates PSII photochemistry during prolonged darkness. Summary Cytokinins (CKs) delay dark‐induced senescence, but how they tune photosynthetic function in darkness remains unclear. We investigated the effects of classical aromatic CK benzylaminopurine and CK‐derived compound 1‐(2‐methoxyethyl)‐3‐(1,2,3‐thiadiazol‐5‐yl)urea ...
Veronika Kábrtová   +14 more
wiley   +1 more source

Úloha samosprávy v České republice v otázce ochrany zájmových zvířat [PDF]

open access: yes, 2010
The article is based on explanation of the complicated relationship among human being and animals and its development in the whole history. In the middle of part of this article, author tries to introduce some of the privileged animals – for example ...
Brychtová, Šárka
core   +1 more source

Home - About - Disclaimer - Privacy