Copepods represent an interesting alternative or a complement live food to brine shrimps and rotifers commonly used in aquaculture. They constitute the natural prey of many fish species therefore do not require potential nutritional enrichment. But optimization microalgal diets feed copepods is essential improve their mass culture. This study examined effects seven diets, namely single-species ...

After an exceptional hydroclimatic year, a “massive green algae bloom”, dominated by the autotrophic picoeukaryote Picochlorum sp, was observed in 2018–2019 Thau lagoon. Oyster farmers informed decision-makers and scientists about alarming halt to growth, loss of flesh weight abnormal mortality commercial size oysters, whereas mussel no adverse effects. Two hypotheses were tested. First, Medite...

Temperature-sensitive markers can be of value in order to elucidate the mechanism of virus-induced cell transformation, and to demonstrate the expression of virus-coded genes in transformed cells. It has been shown in previous studies with large and small plaque strains of polyoma virus (PV) that a small plaque mutant of PV is temperature-sensitive for virus replication at high temperature.' Ex...

background:  the residual effect of triflumuron and pyriproxyfen on musca domestica l larval stages was studied in the laboratory. methods : both igrs at varying concentrations ranging between 0.5 to 2.5 mg/l were placed inside beakers with mice chow and vitamin b complex and water as food for the 1 st , 2 nd and 3 rd instars m.domestica larvae. results: both igrs inhibit m. domestica adult eme...

Rationale Complete decomposition of silicate rock matrices is crucial in determining their isotopic compositions, but acid dissolution a high-pressure steel-jacketed bomb, which has been the only powerful, effective technique thus far, time-consuming and expensive. Rock using ammonium bifluoride (ABF), as described here, viable alternative. Methods Geological reference materials (GRMs) were dig...

The major goal of this study is to determine the bioaccumulation heavy metals in tissues and bones Red Hybrid Tilapia <i>(Oreochromis niloticus)</i> Mackerel <i>(Rastrelliger kanagurta)</i> taken from two distinct sites Terengganu state, Malaysia, namely Kijal Paka. Zinc (Zn), copper (Cu), nickel (Ni), lead (Pb)were examined. Soil analysis also was carried out for same e...

Chemistry is a science emphasizing both theory and experimentation. After learning the theoretical knowledge, experimental operation can help students understand chemical concepts transform them into practical knowledge. Considering safety issue lack of teaching time equipment, some teachers often choose to demonstrate an experiment instead letting conduct it by themselves. This may affect thei...

The presence of a betaz-adrenergic receptor in the epidermis has been demonstrated, based on the following pieces of information: (I) the addition of salbutamol, a betas-agonist, to slices of epidermal tissue increased the levels of cyclic AMP in the tissue above control levels in a dose-dependent manner with a maximum response after 5 min of incubation in 5 x lo-’ M salbutamol, (2) the additio...

Title: CONTROLLED LIPOSOME FORMATION AND SOLUTE ENCAPSULATION WITH CONTINUOUS-FLOW MICROFLUIDIC HYDRODYNAMIC FOCUSING Andreas Jahn, Doctor of Philosophy, 2008 Directed By: Professor Don L. DeVoe, Department of Mechanical Engineering Liposomes enable the compartmentalization of compounds making them interesting as drug delivery systems. A drug delivery system (DDS) is a transport vehicle for a d...

Imagine the clinical laboratory in 2010. What changes will we see if the trend toward automation and miniaturization of laboratory tests continues? Many experts believe that the use of microchips, tiny chips with miniaturized components, will revolutionize the laboratory. We will see some changes within the next 5 years, and many more during the next decade. Likely scenarios, if researchers and...