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Abstract  

Obsidian samples from Monte Arci in Sardinia (Italy) have been characterized by their minor and trace element concentration in order to find discriminating parameters useful to provenance the prime matter of obsidian artifacts. Obsidian samples were collected both at the SA, SB and SC outcrops and far away from them. All samples were submitted to INAA. The trace element concentration appears to be very useful to discriminate the three flows. Multivariate statistical analysis confirms the satisfactory distinction between the three sources. The assignment of the samples collected far away from outcrops to a specific flow (SC) validates the hypothesis that obsidian blocks might have been washed out by alluvial events.

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Community Ecology
Authors: S. Ongaro, S. Martellos, G. Bacaro, A. De Agostini, A. Cogoni, and P. Cortis

The Mediterranean is one of the major biodiversity hotspots of the world. It has been identified as the “core” of the speciation process for many groups of organisms. It hosts an impressive number of species, many of which are classified as endangered taxa. Climate change in such a diverse context could heavily influence community composition, reducing ecosystems resistance and resilience. This study aims at depicting the distribution of nine orchid species in the island of Sardinia (Italy), and at forecasting their future distribution in consequence of climate change. The models were produced by following an “ensemble” approach. We analysed present and future (2070) niche for the nine species, using Land Use and Soil Type, as well as 8 bioclimatic variables as predictors, selected because of their influence on the fitness of these orchids. Climate change in the next years, at Mediterranean latitudes, is predicted to results mainly in an increase of temperature and a decrease of precipitation. In 2070, the general trend for almost all modelled taxa is the widening of the suitable areas. However, not always the newly gained areas have high probability of presence. A correct interpretation of environmental changes is needed for developing effective conservation strategies.

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Abstract  

Obsidian samples from the Tokaj Mountains (Hungary) and from the neighbouring Zemplin Hills (Slovakia) were analysed by instrumental and epithermal neutron activation analysis for obtaining a “fingerprint” for discrimination of potential natural sources of raw material that would permit tracing the origin of archaeological obsidian artefacts. These techniques fully discriminate the Zemplin Hills sources (Carpathian I, eastern Slovakia) and the Tokaj Mountain sources (Carpathian II, north-eastern Hungary) as well as these Central European sources from those already studied of the Mediterranean basin and adjacent regions.

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Acta Biologica Hungarica
Authors: Francesca Grisafi, Elisabetta Oddo, Maria Letizia Gargano, Simone Inzerillo, Gianni Russo, and Giuseppe Venturella

The choice of stress resistant and highly adaptable species is a fundamental step for landscaping and ornamental purposes in arid and coastal environments such as those in the Mediterranean basin. The genus Tamarix L. includes about 90 species with a high endurance of adversity. We investigated the water relations and photosynthetic response of Tamarix arborea (Sieb. ex Ehrenb.) Bge. var. arborea and T. parviflora DC. growing in an urban environment. Both species showed no evidence of drought or salt stress in summer, and appeared to follow two strategies with T. arborea var. arborea investing in high carbon gain at the beginning of the summer, and then reducing photosynthetic activity at the end of the season, and T. parviflora showing lower but constant levels of photosynthetic activity throughout the vegetative season. For landscaping and ornamental purposes, we suggest T. arborea var. arborea when a fast-growing, high-cover species is necessary, and T. parviflora when less-invasive species are required.

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Summary  

Thirty-seven episodes of dust intrusion were observed between February 12, 1991 and August 31, 2000 in the Hungarian atmosphere and found to be of Saharan origin. They have been assigned to typical source areas in Northern Africa selected by systematic investigations related to the Mediterranean Basin. Elemental concentrations and regional signatures deduced from PIXE analysis, total suspended particle mass, and black carbon mass have been measured on dust samples collected in Debrecen, Hungary. These data combined with Aerosol Index data, and dust plume axes obtained from TOMS data from NASA satellites were used for assigning the most probable source areas of the dust transported to the sampling site. Our data and conclusions are in accordance with other published investigations on the predominant role of Saharan dust emission in building up the aerosol load of the global atmosphere.

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Tomato crop in the Mediterranean Basin has been recently affected by the exotic pest Tuta absoluta (Meyrick), which is difficult to control due to its high reproduction rate and potential to develop resistance to insecticides. In this paper, the suitability and effectiveness of three predatory phytoseiid mites Cydnoseius negevi (Swirski and Amitai), Neoseiulus barkeri (Hughes) and Amblyseius largoensis (Muma), an indigenous species, were evaluated on larvae of T. absoluta under laboratory conditions. First instar larvae of T. absoluta proved to be possible food source for tested phytoseiid mites under laboratory conditions.

Females of C. negevi, A. largoensis and N. barkeri were able to feed and sustain oviposition on unfed, first instar larvae of T. absoluta. A diet of insect larvae provided the shortest oviposition period and adult longevity of C. negevi and A. largoensis, while N. barkeri showed the longest corresponding periods. The total and daily number of insect larvae consumed was significantly higher in N. barkeri than in A. largoensis and C. negevi. Likewise, N. barkeri laid significantly higher number of eggs (23.6 eggs / female) than that deposited by C. negevi and A. largoensis (2.5 and 3.9 eggs / female). The sex ratio of the progeny was female biased and ranged: (females / total=0.62-0.68%) when insect larvae were provided for females of C. negevi, A. largoensis and N. barkeri.

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Congress on “Science and technology for the safeguard of cultural heritage in the Mediterranean basin” , Catania, Siracusa, Italy, 1995 , p. 181 .

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The Guest Editors of this Special Chapter and the Conference Organisers are looking forward to meeting you at the 31st International Conference on Vacuum Microbalance Techniques IVMTC31, Izmir Institute of Technology Izmir, Turkey 12–14 September, 2007 SCOPE OF THE CONFERENCE The subject matter of the Conference covers all aspects of mass and force determination, in particular under vacuum or controlled atmosphere. It includes theoretical and experimental work like thermogravimetry, sorptometry and measurement of chemisorption, physisorption, surface reactions, magnetic properties, surface tension, etc. Reports on progress in instrumentation should deal with microbalance and related techniques including supplementary equipment and corresponding coupling techniques. SCIENTIFIC PROGRAMME The scientific programme will include plenary lectures and contributed lectures (20 min) as well as poster presentations which deal with. • History and advances in microweighing • New techniques to measure mass and weight in vacuum and controlled environments • Gravimetric measuement of highly porous materials; catalysts, polymers, advanced materials, nanotechnology • Adsorption rates and equilibria • Industrial applications of microbalance and microforce sensors including oscillators and load cells • The coupling techniques: to DSC, TMA, DTA, DTG, MS, IR, etc. • Vacuum apparatus, microelectronics and related equipment. EXHIBITION An exhibition of balances, thermoanalytical apparatus and complementary techniques will take place during this conference. IMPORTANT DATES Pre-registration: November 10, 2006; Notifications acceptance: December 13, 2006; Deadline for registration: June 16, 2007; Deadline for paper submission for publication: September 14, 2007 THE VENUE IZMIR Izmir ‘The pearl of the Aegean’ is the third most populous city of Turkey and the country’s largest port after Istanbul. It is located on the Aegean Sea near the Gulf of Izmir. The former Smyrna is one of the oldest cities of the Mediterranean basin, established in the 3rd millennium B.C. Impressive civil work of Greek architecture, synagogues, early Christian and Islamic buildings are preserved in the town and in the near surrounding. Modern Izmir also incorporates world-famous ancient cities like Ephesus, Pergamon and Sardis. IZMIR INSTITUTE OF TECHNOLOGY was established in 1992 as the third University in Izmir. There are 115 teaching staff, 403 research assistants, and about 2000 students in the University. The University has Faculties of Science, Engineering and Architecture. The 31st International Vacuum Microbalance Techniques Conference will be held during September 2007 in the Department of Chemical Engineering. The Department has three professors, three associate professors, and 9 assistant professors. The main research areas of the department are interdisciplinary such as materials science, environmental science, biotechnology and energy. Facilities of the Department include FTIR and UV spectrometers, volumetric and gravimetric gas adsorption systems, magnetic suspension balance, thermal analyzers, rheometers, polymer processing equipment.

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syndromes: Characteristics, treatment, and outcome of patients with ACS in Europe and the Mediterranean Basin in 2004. Eur. Heart J., 2006, 27 (19), 2285–2293. Gyárfás, I., Jánosi, A., Ofner, P.: Myocardial Infarction

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123 128 Martin, J. H., Mifsud, D. and Rapisarda, C. (2000): The whiteflies (Hemiptera: Aleyrididae) of Europe and the Mediterranean Basin. Bulletin of Entomological Research 90

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