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ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57

Suitability of Phytosterols Alongside Fatty Acids as Chemotaxonomic Biomarkers for Phytoplankton

The composition and abundance of phytoplankton is an important factor defining ecological status of marine and freshwater ecosystems. Chemotaxonomic markers (e.g., pigments and fatty acids) are needed for monitoring changes in a phytoplankton community and to know the nutritional quality of seston for ...

Frog Virus 3 dissemination in the brain of tadpoles, but not in adult Xenopus, involves blood brain barrier dysfunction

While increasing evidence points to a key role of monocytes in amphibian host defenses, monocytes are also thought to be important in the dissemination and persistent infection caused by ranavirus. However, little is known about the fate of infected macrophages or if ranavirus exploits immune privileged ...

Costs and trade-offs of grazer-induced defenses in Scenedesmus under deficient resource

The green alga Scenedesmus obliquus can form inducible defensive morphs under grazing threat. Costs and trade-offs of inducible defense are expected to accompany the benefits of defensive morphs, but are hard to detect under nutrient-sufficient experimental conditions. To test the existence of costs ...

Food limitation of sea lion pups and the decline of forage off central and southern California

California sea lions increased from approximately 50 000 to 340 000 animals in the last 40 years, and their pups are starving and stranding on beaches in southern California, raising questions about the adequacy of their food supply. We investigated whether the declining sea lion pup weight at San Miguel ...

Spatial and Temporal Variations in the Occurrence and Foraging Activity of Coastal Dolphins in Menai Bay, Zanzibar, Tanzania

Understanding temporal patterns in distribution, occurrence and behaviour is vital for the effective conservation of cetaceans. This study used cetacean click detectors (C-PODs) to investigate spatial and temporal variation in occurrence and foraging activity of the Indo-Pacific bottlenose (Tursiops ...

Alert system for fishermen crossing border using Android

The application can be widely used by people in the border to find the appropriate path to reach the destination. The notification will be sent to the border security forces which act as the server to all other devices that are operated by people in ships. The application will notify the information ...

Inhibition of a sulfate reducing bacterium, Desulfovibrio marinisediminis GSR3, by biosynthesized copper oxide nanoparticles

To control the severe problem of microbiologically influenced corrosion, industries require highly potent antibacterial agent which can inhibit the growth of bacteria on man-made surfaces. This need drove the research towards the synthesis of nanoscale antimicrobial compounds. We, therefore, screened ...

Use of Photo-Identification and Mark-Recapture Methodology to Assess Basking Shark (Cetorhinus maximus) Populations

Following centuries of exploitation, basking sharks (Cetorhinus maximus) are considered by IUCN as Endangered in the Northeast Atlantic, where they have now been substantially protected for over two decades. However, the present size of this population remains unknown. We investigated the use of photo-identification ...

Application of Quasi-Continuous Method to Open-Water Characteristics Predictions of Propellers with Energy-Saving Ducts

The quasi-continuous method (QCM) was applied to open-water thrust and torque predictions of ducted propellers with different positions of the propeller and duct. Two methods to calculate the resultant velocity were discussed. The QCM results are in good agreement with the experimental data of the propellers ...

Satellite image contrast and resolution enhancement using discrete wavelet transform and singular value decomposition

This paper introduced a new satellite image resolution and contrast enhancement technique which is based on the combination of other two technique named as discrete wavelet transform (DWT) and singular value decomposition (SVD). Satellite images are used in many applications such as in meteorology, ...

Marine vessel detection comparing GPRS and satellite images for security applications

Unauthorized and unregistered sea going fishing vessels are being used for criminal activities in the coastal areas. The issue of piracy against merchant ships using illegal fishing vessels poses a significant threat to world shipping. Unfortunately counter piracy efforts and maritime security of our ...

Hox and ParaHox gene expression in early body plan patterning of polyplacophoran mollusks

ABSTRACT Molecular developmental studies of various bilaterians have shown that the identity of the anteroposterior body axis is controlled by Hox and ParaHox genes. Detailed Hox and ParaHox gene expression data are available for conchiferan mollusks, such as gastropods (snails and slugs) and cephalopods ...

How to Rank Journals

There are now many methods available to assess the relative citation performance of peer-reviewed journals. Regardless of their individual faults and advantages, citation-based metrics are used by researchers to maximize the citation potential of their articles, and by employers to rank academic track ...

The eating habits of Patients with Type 2 diabetes in Algeria

Objective: To evaluate the eating habits and the practice of physical-activity of patients with Tyhpe-2 diabetes. (DT2). Methods: A total of 1523 patients DT2 with average age 58±9.9 were recruited. A questionnaire about their eating habits, physical activity was conducted. Data were analyzed using ...

Associations between prenatal mercury exposure and early child development in the ALSPAC study

Introduction There is evidence that high levels of mercury exposure to the pregnant woman can result in damage to the brain of the developing fetus. However there is uncertainty as to whether lower levels of the metal have adverse effects on the development of the infant and whether components of fish ...

Beneficial changes in food consumption and nutrient intake after 10 years of follow-up in a Mediterranean cohort: the SUN project

Background The assessment of changes in dietary habits provides interesting information on whether or not the observed trends are in line with accepted nutritional guidelines. The objective was to evaluate within-subject longitudinal changes in food consumption and nutrient intake and in a 10-year ...

Impact of Marine Submergence and Season on Faunal Colonization and Decomposition of Pig Carcasses in the Salish Sea

Pig carcasses, as human proxies, were placed on the seabed at a depth of 300 m, in the Strait of Georgia and observed continuously by a remotely operated camera and instruments. Two carcasses were deployed in spring and two in fall utilizing Ocean Network Canada’s Victoria Experimental Network under ...

Breastfeeding, pregnant, and non-breastfeeding nor pregnant women's food consumption: A matched within-household analysis in India

Objective Promoting breastfeeding is major maternal and child health goal in India. It is unclear whether mothers receive additional food needed to support healthy breastfeeding. Methods Using the latest National Family and Health Survey (2005–2006), we applied multilevel linear regression models ...

View from Brussels

ON ONE OF MY increasingly rare trips to England, I did something I never did when I lived here: I visited a fish and chip shop. Just something to write on the postcard. It was North London, and the Cypriot owner wrapped up the delicious haddock doused in the finest vinegar before apologising that he ...

Ant Colony Optimization — Computational swarm intelligence technique

Swarm Intelligence being nature inspired intelligence based on collective behavior of swarms having self-organized nature. Various schemes are being formulated in terms of ACO, PSO, Fish Swarm, Bats Swarm, Bacterial Foraging etc. Ant Colony Optimization (ACO) is regarded as high-end computational technique ...

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