Search results for "ETA-PI"
showing 4 items of 4 documents
Chemodiversity of the Essential Oil from Leaves of Abies nebrodensis (Lojac.) Mattei
2016
Abies nebrodensis (Lojac.) Mattei (Pinaceae) is a species occurring in a very small population only in a restricted area of Sicily. Its taxonomic classification as different species has been object of discussion. In this work the chemical composition of the essential oil from the leaves is presented for the first time and compared to the essential oils from other euroasiatic species reported in literature. Peculiar characteristics of the essential oil of A. nebrodensis are highlighted.
Volatile compounds of flowers and leaves of Sideritis italica (Miller)Greuter et Burdet (Lamiaceae), a plant used as mountain tea
2010
Sideritis italica (Miller) Greuter et Burdet (Lamiaceae), widely used in ethnopharmacological medicine, occurs in Southern Italy and Sicily. The phytochemical composition of the essential oils of S. italica flowers and leaves, harvested in Piano Battaglia (Sicily), was analysed by GC and GC-MS. Of the 51 compounds, 43 in the oil from flowers and 29 in the oil from leaves were identified. Kaur-15-ene (20.0%) was recognised as the main constituent of the oil from flowers, together with beta-cubebene (12.1%), beta-pinene (8.5%), (Z)-nuciferol (6.5%), tricyclene (4.5%) and alpha-bisabolol (4.0%). In the oil from leaves, p-methoxyacetophenone (26.0%) prevailed, as did hexadecanoic acid (21.3%), …
Determination of the pole position of the lightest hybrid meson candidate
2019
Mapping states with explicit gluonic degrees of freedom in the light sector is a challenge, and has led to controversies in the past. In particular, the experiments have reported two different hybrid candidates with spin-exotic signature, pi1(1400) and pi1(1600), which couple separately to eta pi and eta' pi. This picture is not compatible with recent Lattice QCD estimates for hybrid states, nor with most phenomenological models. We consider the recent partial wave analysis of the eta(') pi system by the COMPASS collaboration. We fit the extracted intensities and phases with a coupled-channel amplitude that enforces the unitarity and analyticity of the S-matrix. We provide a robust extracti…
Obraz życia ziemiaństwa rosyjskiego w świetle wspomnień Zofii Kowalewskiej
2017
Artykuł przedstawia obraz życia ziemiaństwa rosyjskiego w latach 60. XIX wieku na przykładzie Wspomnień z dzieciństwa Zofii Kowalewskiej (1850-1891), wybitnej rosyjskiej matematyczki, utalentowanej pisarki i publicystyki. Autorka zapisków okres dzieciństwa i wczesnej młodości spędziła na obrzeżach imperium carskiego, w rodzinnym majątku Palibino. We wspomnieniach memuarystka ukazuje przede wszystkim środowisko, z którego się wywodzi, prezentuje sposób wychowania i kształcenia szlacheckich dzieci, charakteryzuje atmosferę domu rodzinnego, przedstawia formy spędzania czasu wolnego, spośród których najważniejsze to: czytanie książek zgromadzonych w domowej bibliotece, spotkania towarzyskie ora…