We investigated the regulation of the muscarinic cholinergic receptor (MChR) in brain from seven species of fish, two surrogates and five threatened or endangered species exposed to a series of chemicals as a measure of compensatory response among species. Fish were classified as either cold water (rainbow trout-surrogate, apache trout, lahanton trout) or warm water (fathead minnow-surrogate, r...

The use of plastics is resisted worldwide. Therefore, finding alternatives to plastic packaging products an urgent issue. This work was dedicated the preparation biodegradable composited films with potato starch, glycerol, and gelatin. formulation film first optimized via response surface methodology combined multi-index comprehensive evaluation method that considered physical properties (thick...

The spectral responsivity of commercially available InSb detectors with low-pass cold filters attached to their cold shields for optimum operation in the 1.6-2.6 microm wavelength range is observed to drift slowly with time. These drifts are shown to arise because of a thin film of water-ice deposited on the cold low-pass filters mounted on the cold shields of the detectors. The temporal charac...

Almost any study of fine or coarse vascular anatomy or pathology can be assisted at some phase by the use of one or more of the various vascular injection techniques. Gelatin, which is superior for demonstration of vessels of microscopic and near-microscopic dimensions, is so rarely used now that few workers have had any practical experience with it. This lack of popularity is understandable to...

in our previous work, the effect of use of a water soluble cdi/nhs system as nontoxic cross-linking agent on fabrication of gelatin nanoparticles was investigated. in this research, the effect of variation in some synthetic parameters of gelatin nanoparticles cross-linked by cdi/nhs system such as type of gelatin and formulation of cross- linking agent on their size and distribution was examine...

Like dichromated gelatin ~DCG!, methylene-bluesensitized gelatin ~MBG! is also a potential holographic recording material1,2 and can be used in forming a hologram with a high diffraction efficiency ~DE! and high signal-to-noise ratio ~SNR!. The addition of methylene blue ~MB! into a gelatin or DCG film renders it effective to record holograms with red light from an inexpensive He–Ne laser, whic...

Biological packaging material based on obtained proteins from fish waste, are biopolymers that have the capability of biodegradable film formation. Thus, purpose of this research is to study and investigate some of films’ physical features made from trout fish Myofibril protein. The film forming solution containing 1.5%, 2% and 2.5%(w/v) Myofibril protein isolate of 100ml solution and glycerol ...

Biological packaging material based on obtained proteins from fish waste, are biopolymers that have the capability of biodegradable film formation. Thus, purpose of this research is to study and investigate some of films’ physical features made from trout fish Myofibril protein. The film forming solution containing 1.5%, 2% and 2.5% (w/v) Myofibril protein isolate of 100ml solution and glycerol...

Well-dispersed fish gelatin-based nanocomposites were prepared by adding ZnO nanorods (NRs) as fillers to aqueous gelatin. The effects of ZnO NR fillers on the mechanical, optical, and electrical properties of fish gelatin bio-nanocomposite films were investigated. Results showed an increase in Young's modulus and tensile strength of 42% and 25% for nanocomposites incorporated with 5% ZnO NRs, ...

Environmental DNA (eDNA) promises to ease noninvasive quantification of fish biomass or abundance, but its integration within conservation and fisheries management is currently limited by a lack of understanding of the influence of eDNA collection method and environmental conditions on eDNA concentrations in water samples. Water temperature is known to influence the metabolism of fish and conse...