Effect of Nostoc (Cyanobacteria) inoculation on the structure and stability of clay soils

1996 ◽  
Vol 23 (3) ◽  
pp. 346-352 ◽  
Author(s):  
L. Falchini ◽  
E. Sparvoli ◽  
L. Tomaselli
1996 ◽  
Vol 23 (3) ◽  
pp. 346-352 ◽  
Author(s):  
L. Falchini ◽  
E. Sparvoli ◽  
L. Tomaselli

2006 ◽  
Vol 2 (1) ◽  
pp. 51-72
Author(s):  
István Patay ◽  
Virág Sándor

Clod crushing is a principal problem with soils of high clay content. Therefore, there is a need for determining the conditions for clod breaking and clod crushing. The objective of the work was to develop a special purpose tool for single clod breaking both by rigid support of the clod and by a single clod supported by soil and to develop a machine for clod crushing. Furthermore, the purpose was to determine the relationship between the specific energy requirement for clod crushing in the function of soil plasticity and the soil moisture content by the means of the developed tool and machine. The main result of the experiments is summarized in a 3D diagram where the specific energy requirement for soil clod crushing is given in the function of the moisture content and the plasticity index for different clay soils.


Ekologija ◽  
2008 ◽  
Vol 54 (1) ◽  
pp. 22-28 ◽  
Author(s):  
Valentinas Šaulys ◽  
Nijolė Bastienė
Keyword(s):  

2018 ◽  
Vol 12 (3-4) ◽  
pp. 70-80
Author(s):  
A. D. Skobelev ◽  
E. Yu. Matlakhova ◽  
S. V. Serebryakov ◽  
A. P. Ermakov ◽  
I. N. Modin ◽  
...  
Keyword(s):  

Author(s):  
Rohan Aggarwal ◽  
Monika Targhotra ◽  
Bhumika Kumar ◽  
P.K Sahoo ◽  
Meenakshi K Chauhan

In the past few years gene delivery system has gained a huge attention owing to its proved efficacy in several diseases especially in those caused by genetic and/oroncological malfunctioning. The effective gene delivery mainly depends on the carrier molecules that can ensure the safe and specific delivery of the nucleic acidmolecules. Viral vectors have been used for a longer period as the gene transfer vehicle. However, these viral vectors have potential immunological disadvantages that made them less preferred. Recently, non-viral vectors such as polyplexes have emerged as a promising alternative for viral vectors. Polyplexes are formed by conjugating a polymer with DNA and in maximum cases the cationic polymers are preferred over others. The structure and stability of the polyplexes depends on various factors. The ability of the polymer to condense the DNA mainly dictates the efficiency of the polyplex mediated transfection. In this review we are going to provide a framework for the synthesis and design of the polyplexes along with the structure and stability of the complexes pertaining to mechanism of action, characterization and therapeutic application, including polyethyleneimine mediated cytotoxicity as well as newer strategies for the generation of better polyplexes.


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