ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
An aqueous gel material which is rich in flexibility and elasticity, changes little in gel strength during storage, has a low sol viscosity, can be easily processed, is extremely less apt to suffer water separation, and has the function of absorbing water and dissolving in water. The gel-form water-absorbing ...
In the present study, we employed microsatellite DNA markers to analyze the genetic diversity and differentiation between and within cultured stocks and wild populations of the orange-spotted grouper originating from the South China Sea and Southeast Asia. Compared to wild populations, genetic changes ...
The ecosystem-level impacts of the Deepwater Horizon disaster have been largely unpredictable due to the unique setting and magnitude of this spill. We used a five-year (2006–2010) data set within the oil-affected region to explore acute consequences for early-stage survival of fish species inhabiting ...
Addition of man-made structures alters abiotic and biotic characteristics of natural habitats, which can influence abundances of biota directly and/or indirectly, by altering the ecology of competitors or predators. Marine epibiota in modified habitats were used to test hypotheses to distinguish between ...
Background Malaria mosquitoes spend a considerable part of their life in the aquatic stage, rendering them vulnerable to interventions directed to aquatic habitats. Recent successes of mosquito larval control have been reported using environmental and biological tools. Here, we report the effects of ...
A description is given of a yachting unit (1) with a sun awning (2) with an improved structure. The unit (1) comprises: - a hull (10) with a bow portion and a stem portion; - lateral bulwarks (7, 8) joined in the direction of the bow portion; - a command bridge (5) between the bow portion and the stern ...
Template removal is a critical step in the preparation of most molecularly imprinted polymers (MIPs). The polymer network itself and the affinity of the imprinted cavities for the template make its removal hard. If there are remaining template molecules in the MIPs, less cavities will be available for ...
Background Grouping behaviour, common across the animal kingdom, is known to reduce an individual's risk of predation; particularly through dilution of individual risk and predator confusion (predator inability to single out an individual for attack). Theory predicts greater risk of predation to individuals ...
Background Low selenium (Se) status is associated with several diseases. International organizations have proposed intakes of Se for general populations, including infants. Studies of the association of Se concentration in breast milk and maternal diet have yielded inconsistent results. We evaluated ...
Background In many species males face a higher predation risk than females because males display elaborate traits that evolved under sexual selection, which may attract not only females but also predators. Females are, therefore, predicted to avoid such conspicuous males under predation risk. The present ...
Background Whole-mount in situ hybridization (WISH) is extensively used to characterize gene expression patterns in developing and adult brain and other tissues. To obtain an idea whether a novel gene might be involved in specification of a distinct brain subdivision, nucleus or neuronal lineage, it ...
Background Sudden cardiac death (SCD) is a common initial presentation of coronary artery disease (CAD). Despite the growing epidemic of CAD in India, the epidemiology of SCD is largely unknown. Objective The objective of the study was to define the prevalence and determinants of sudden cardiac deaths ...
Coastal marine and inland landforms are dynamic systems undergoing adjustments in form at different time and space scales in response to varying conditions external to the system. Coastal emerged and nearshore areas, affected by short-term perturbations, return to their pre-disturbance morphology and ...
Because rice, wheat, and corn are the main foods in China, this paper analyses the supply and demand situation of food in recent years based on a lot of data of them, respectively. Furthermore, we putted forward some countermeasures based on the view of food safety, such as gradually increase grain ...
Large numbers of antibiotics were used as food additives and veterinary medicines. Most of these antibiotics could not be absorbed by animals and were discharged through dejeeta in the original shape or metabolized forms. At last these antibiotics entered into soil environments in different routes and ...
Enrichment of aerobic denitrifier in activated sludge system was investigated, using intermittent aeration mode and nitrite as substrate in sequencing batch reactor (SBR). 70% of TN removal was observed when DO was 4–5mg/L, which indicated that aerobic denitrification occurred in activated sludge system. ...
Roxarsone is an organic arsenic compound existing extensively in animal wastewater, while multiwalled carbon nanotubes (MWCNTs) is a good adsorbent for the removal of trace organic pollutants from aqueous solution. In this study, the effect of various experimental parameters, such as adsorbent content, ...
With the interpretation and analysis of 1978, 1988, 1998 and 2008 remote sensing images, evolutionary process during different periods of Suaeda heteroptera and reed wetlands in Liaohe Delta was discussed. Results showed that, although areas of Suaeda heteroptera and reed wetlands during 1978–1988 were ...
The watershed ecosystem influence of the hydroelectric cascade development has become an emphasis and difficulty when assessing the water resources for construction projects. It is the problem that the Guideline for assessment of water-draw and utilization in construction projects(for trial implementation) ...
The status quo and major problems of wetland resources in Baiguishan Nature Reserve were analyzed from the angle of sustainable development. And the strategies and countermeasures were put forward for protecting and sustainable exploiting of the wetland resources.