These stocks were then used to prepare ten-fold dilution series that allowed generation of standard curves specific for each strain and quantification of the respective viral RNA copy numbers in each sample.
Quantifying tree biomass in these landscapes is limited by the availability of reliable allometric models, hindering accurate carbon stock estimation and thus quantification of GHG emission associated with land use transitions.
Total particle concentration of the viral stocks was estimated by quantification of the p24 capsid protein using RETRO-TEK HIV-1 p24 Antigen ELISA kit (ZeptoMetrixCorporation, Buffalo, NY USA) according to the manufacturer's instructions.
Protein quantification of protein stock solutions and supernatants was performed using a standard BC Assay Protein Quantitation Kit.
For Supply Managers, data revealing levels of drug stock-outs and expired drugs should be in place to identify the need for stock management training and better quantification of drug requirements to avoid unnecessary costs through the mismanagement of drugs.
Rather, it places emphasis on improving quantification of contemporary stocks and the relative decline in deforestation rates necessary to preserve those stocks.
The United Nations Convention on Climate Change and its Kyoto Protocol, and other United Nations Conventions to Combat Desertification and on Biodiversity all recognize the importance of SOC and point to the need for quantification of SOC stocks and changes.
This helps to reduce the uncertainties related with the quantification of carbon stocks and to increase the financial benefits from adopting a REDD regime.
In addition, accurate quantification of carbon stocks and related changes is essential for measuring and reporting schemes within the context of international climate policies such as the Reducing Emissions from Deforestation and Forest Degradation (REDD+) mechanism of the United Nations Framework Convention on Climate Change (UNFCCD) [3, 5].
Quantification of virus stocks was determined by Gag-p24 measurements using an HIV-1 p24 ELISA Kit (purchased from the AIDS Vaccine Program of the Frederick Cancer Research and Development Center) or by an RT activity assay [70].
Quantification of forest carbon stock is a challenging task involving high degrees of uncertainty and discrepancies because of methods used.
