Tài liệu Essays on the Materialistic Conception of History ppt

... of itself and which it makes the most of, form a considerable part of the internal history of socialism during Essays on the Materialistic Conception of by Antonio Labriola 19 Essays on the Materialistic ... the TRANSLATOR. ESSAYS ON THE MATERIALISTIC CONCEPTION OF HISTORY Essays on the Materialistic Conception of by Antonio Labriol...

Ngày tải lên: 21/02/2014, 21:20

Ngày tải lên: 20/02/2014, 16:20

... presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal ... based on a number of criteria (Fig. 1.5.). Most of the criteria as identified from the viewpoint of the larva have already been discussed above with the exc...

Ngày tải lên: 15/12/2013, 00:15

... vary considerably according to the culture conditions. For example the effect of the composition of the culture medium on the proximate composition of various species of micro-algae is demonstrated ... Alternatively, the isolation of endemic strains could be considered because of their ability to grow under the local environmental conditions. Isolation of alg...

Ngày tải lên: 15/12/2013, 00:15

... tract of the rotifers are killed as well. The concentration of the disinfection products differs according to their toxicity and the initial condition of the rotifers. Orientating concentrations ... microalgae and at the same time guarantees the incorporation of high levels of EFA and vitamins in the rotifers. The biochemical composition of the artificial d...

Ngày tải lên: 15/12/2013, 00:15

... the expansion of aquaculture production in the 1970’s, the demand for Artemia cysts soon exceeded the offer and prices rose exponentially, turning Artemia into a bottleneck for the expansion ... mode and potential for exploitation. In: Book of abstracts of contributions presented at the International Conference “Improvement of the commercial production of marine aqu...

Ngày tải lên: 15/12/2013, 00:15

... + 6 + 10 The decapsulation procedure involves the hydration of the cysts (as complete removal of the envelope can only be performed when the cysts are spherical), removal of the brown shell ... solution. During overnight dehydration (with aeration to maintain a homogeneous suspension) cysts usually release over 80% of their cellular water, and upon interruption of...

Ngày tải lên: 15/12/2013, 00:15

... and may be satisfied through the consumption of seawater, the main concern regarding the mineral composition of Artemia is whether they meet the requirements of fish or crustacean larvae reared ... positively phototactic, their concentration can be improved by shading the upper part of the hatching tank (use of cover) and focusing a light source on the transparent...

Ngày tải lên: 15/12/2013, 00:15

... ingestion rate and/or assimilation: including the quality and quantity of the food offered, the developmental stage of the larvae, and the culture conditions. More detailed information concerning ... an interchangeable nylon screen was fixed. The aeration was positioned at the bottom of the filter and ensured a continuous friction of air bubbles against the side...

Ngày tải lên: 15/12/2013, 00:15

... usually depends on the availability of high saline water and is often limited to certain periods of the year. Management of these ponds is similar to the management of the Artemia ponds in artisanal ... depend on the type of ponds already in use. Locating the Artemia ponds lower than all other ponds is good practice, as the water flow into the ponds is much hi...

Ngày tải lên: 15/12/2013, 00:15