Search results for "Environments"
showing 10 items of 229 documents
Current status of Schistosoma mansoni infection among previously treated rural communities in the Abbey and Didessa Valleys, Western Ethiopia: Implic…
2021
Background Schistosoma constitutes a major public health problem and developmental challenges in the majority of developing and subtropical regions. The World Health Organization has set guidelines for the control and elimination of schistosomiasis. Ethiopia is providing school-based Mass Drug Administration (MDA) at the study areas of the Abbey and Didessa Valleys of western Ethiopian since 2015. Moreover, mass treatment was already done in the same villages 30 years ago. However, the current Schistosoma mansoni infection status among humans and snails in the study areas is not known. Hence, the present study aims to determine the current status. Methods A community-based cross-sectional …
A Stochastic Search on the Line-Based Solution to Discretized Estimation
2012
Published version of a chapter in the book: Advanced Research in Applied Artificial Intelligence. Also available from the publisher at: http://dx.doi.org/10.1007/978-3-642-31087-4_77 Recently, Oommen and Rueda [11] presented a strategy by which the parameters of a binomial/multinomial distribution can be estimated when the underlying distribution is nonstationary. The method has been referred to as the Stochastic Learning Weak Estimator (SLWE), and is based on the principles of continuous stochastic Learning Automata (LA). In this paper, we consider a new family of stochastic discretized weak estimators pertinent to tracking time-varying binomial distributions. As opposed to the SLWE, our p…
Cultivation Trials of Dill (Anethum graveolens L.) with Different Row Arrangements
2010
Dill (Anethum graveolens L.) is an annual plant from Umbelliferae. Although in cookery also sprouts and tender leaves are used, the drug from Dill is represented by the scented fruits (“seeds”), largely used for flavouring conserved foods and liqueurs, but also by herbal and cosmetic industry. In this work, we present the results of a trial performed in Sicily, putting under comparison four different row arrangements: CR30 (continuous rows 30 cm apart); CR60 (continuous rows 60 cm apart), CR90 (continuous rows 90 cm apart) and TR (twin rows with a distance of 30 cm inside and 60 cm between twin rows). The plant population on the row (12 plants m-1) was constant and according the row distanc…
Phenological and agronomical evaluation of chamomile in Mediterranean environments
2008
Chamomile (Chamomilla recutita (L.) Rausch.) is an annual crop, known worldwide as one of the major medicinal herbs. Its flower heads are reported in the official Pharmacopoeia of 26 countries. In order to evaluate the suitability of chamomile to a low-input field cropping management into a semiarid Mediterranean environment, a long-term research activity has been carried out in the experimental farm “Sparacia” (Cammarata – AG – Sicily); hereby we report the results obtained on plants grown in self-seeded experimental plots in 2007/08. Plants development was observed from November 2007 up to (visually assessed) flowers appearance. Blooming started in middle February, and in middle April (af…
VET workers’ problem-solving skills in technology-rich environments: European approach
2014
International journal for research in vocational education and training 1 (2014) 1, S. 57-80
Effects of Nautical Traffic and Noise on Foraging Patterns of Mediterranean Damselfish (Chromis chromes)
2012
Chromis chromis is a key species in the Mediterranean marine coastal ecosystems where, in summer, recreational boating and its associated noise overlap. Anthropogenic noise could induce behavioural modifications in marine organisms, thereby affecting population dynamics. In the case of an important species for the ecosystem like C. chromis, this could rebound on the community structure. Here, we measured nautical traffic during the summer of 2007 in a Southern Mediterranean Marine Protected Area (MPA) and simultaneously the feeding behaviour of C. chromis was video-recorded, within both the no-take A-zone and the B-zone where recreational use is allowed. Feeding frequencies, escape reaction…
Effect of Sowing Time on Coriander Performance in a Semiarid Mediterranean Environment
2006
In semiarid environments, time of sowing is one of the most important factors influencing seed yields. For coriander (Coriandrum sativum L.), the most commonly recommended cropping technique is spring sowing (March–April), since the optimum soil temperature for seed germination ranges between 20 and 23 °C, and the crop shows a remarkable sensitivity to frost and cold. In many semiarid areas of southern Italy, however, the occurrence of prolonged dry periods in summer and spring does not allow for the scheduling of summer crops without irrigation. However, the generally mild winter temperatures and the typical rainfall distribution, which is mostly concentrated over the winter months, could …
Effects of a small seagull colony on trophic status and primary production in a Mediterranean coastal system (Marinello ponds, Italy)
2012
Abstract Colonies of seabirds have been shown to influence nutrient cycling and primary production of coastal areas, but knowledge is still limited above all for smaller colonies. This study evaluates the influence of a small resident seagull colony (Larus michahellis Naumann, 1840) on a Mediterranean coastal system (Marinello ponds, Sicily, Italy). The presence of ornithogenic organic matter from seagull guano was first assessed at increasing distances from the colony using δ15N to indicate the effects of guano on the trophic status and primary production. The pond directly affected by guano deposition showed an anomalous water and sediment chemistry, especially regarding physico-chemical …
Benthic foraminifera and environmental changes in the Quaternary of the western Mediterranean coast: the core of Xeraco, Valencia, Spain
2020
The evolution of the benthic foraminiferal assemblages from a 60 m core drilled in the Quaternary lagoon of Xeraco (Valencia, Spain) is studied. Two moments of warm climate, high sea-level and maximal marine influence in the lagoon have been identified. The first one at the base of the core, punctuated by highly frequent changes during the Upper Pleistocene, and the other one in the upper end of the series during the Holocene. The presence of a middle core section with low diversity and a nearly total absence of marine foraminifers is interpreted as a regressive interval of cold climate conditions linked to a glacial stage.
Exploitation of native Labiatae in Sicily
2006
The family Labiatae is extremely rich in genera and species, and many of them are native to Mediterranean environments. In Sicily, a great interest is devoted since ancient times to their cultivation and use, and they are traditionally used for a great deal of purposes, from cookery to phytotherapy. When their cultivation is addressed to their traditional purposes (as spices, savory herbs or herbal medicines), the major aspects of their cropping technique are well established. However, there are two many reason why their traditional cropping technique should be deeply reviewed. First, many of their productive steps (from sowing to harvest) require a great deal of manpower, and the enhanceme…