A Greek Magical Gemstone from the Black Sea
نویسندگان
چکیده
منابع مشابه
Spanish Jet: Something More Than a Gemstone with Magical Properties
Apart from the history and traditions associated with this material, there are several questions that need to be answered. What exactly is Spanish jet? What is its nature? What are the reasons for its special properties and, above all, why has it retained its reputation over so many years as an unalterable material throughout time? Spanish jet is a humic coal, conventionally assimilated to a va...
متن کاملThe Black Sea in crisis.
Background. DNA adenine methylation plays an important role in several critical bacterial processes including mismatch repair, the timing of DNA replication and the transcriptional control of gene expression. The dependence of bacterial virulence on DNA adenine methyltransferase (Dam) has led to the proposal that selective Dam inhibitors might function as broad spectrum antibiotics. Methodology...
متن کاملDynamics of the Laschamp geomagnetic excursion from Black Sea sediments
Investigated sediment cores from the southeastern Black Sea provide a high-resolution record from mid latitudes of the Laschamp geomagnetic polarity excursion. Age constraints are provided by 16 AMS C ages, identification of the Campanian Ignimbrite tephra (39.2870.11 ka), and by detailed tuning of sedimentologic parameters of the Black Sea sediments to the oxygen isotope record from the Greenl...
متن کاملAlkaloids from the South China Sea Black Coral Antipathes dichotoma.
A new carbazole alkaloid, antipathine A (1), together with three known zoanthoxanthin alkaloids (2--4) was isolated from the EtOH/CH2Cl2 extracts of the South China Sea black coral Antipathes dichotoma. The structure of 1 was determined on the bases of extensive spectroscopic analysis, including 1D and 2D NMR data. Compounds 1 and 2 showed moderate cytotoxicity against human stomach carcinoma S...
متن کاملThe Mediterranean and Black Sea Fisheries at Risk from Overexploitation
The status of the Mediterranean and Black Sea fisheries was evaluated for the period 1970-2010 on a subarea basis, using various indicators including the temporal variability of total landings, the number of recorded stocks, the mean trophic level of the catch, the fishing-in-balance index and the catch-based method of stock classification. All indicators confirmed that the fisheries resources ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Kernos
سال: 2010
ISSN: 0776-3824,2034-7871
DOI: 10.4000/kernos.1569