A series of 2-(4-nitro-1-imidazolylmethyl)-1,3,4-oxadiazole, 1,3,4-triazole and 3-(4-nitro-1-imidazolylmethyl)-1,2,4-triazole derivatives were synthesized and tested for their antimicrobial activity. Some of the tested compounds were active against Staphylococcus aureus, Staphylococcus epidermidis, Bacillus subtilis, Clostridium difficile, Aspergillus niger and Cryptococcus neoformans.

Here, the possibility of existence nitro-graphene derivatives with undisturbed graphene backbone is considered. Based on first-principles calculation, it shown that while NO $$_2$$ unable to form a covalent bond bare graphene, becomes possible in some structures hydrogenated graphane, fluorographene, and oxide. This paper presents, among others, an analysis surrounding influence C-NO strength. ...

The catalytic hydrogenation of halonitroarenes to haloanilines is a green and sustainable process for the production key nitrogen-containing intermediates in fine chemical industry. Chemoselective poses significant challenge, which requires rational design catalysts with proper ability nitro group simultaneously preventing dehalogenation halogen group. Herein, highly effective Rh@Al 2 O 3 @C si...

BACKGROUND Clinical studies claim that platelet-rich plasma (PRP) shortens recovery times because of its high concentration of growth factors that may enhance the tissue repair process. Most of these studies obtained PRP using different separation systems, and few analyzed the content of the PRP used as treatment. PURPOSE This study characterized the composition of single-donor PRP produced b...

We argue that our gravitation equations [1] in the flat space-time lead to the finite proper gravitational energy of a point mass. 1 The Gravitation Equations Perhaps [2] , gravitation can be described by a tensor field ψ µν in flat space-time and the Lagrangian action for the test point masses m in this field is of the form L = −mc[g αβ (ψ) ˙ x α ˙ x β ] 1/2 , (1) where ˙ x α = dx α /dt and g ...

The present study describes the effect of NCO/OH and triol/diol ratios on the mechanical properties of Nitro functionalized Hydroxyl-terminated polybutadiene (Nitro-HTPB) elastomers. The progress of the cure reaction of Nitro-HTPB and toluene diisocyanate (TDI) is evaluated by following up the variations in the IR absorption bands of the NCO stretching and the CO ...

This paper introduces the APHID (Asynchronous Parallel Hierarchical Iterative Deepening) game-tree search algorithm. APHID represents a departure from the approaches used in practice. Instead of parallelism based on the minimal search tree, APHID uses a truncated gametree and all of the leaves of that tree are searched in parallel. APHID has been programmed as an easy to implement, game-indepen...

Condensation of aromatic aldehydes with benzoyl acetone under specified conditions yieldedtwo series of polycarbonyl compounds in which the keto group is attached to olefinic linkage.Spectral and analytical data revealed the formation of an unsaturated triketone from pyridine-3-carbaldehyde and unsaturated diketone from furfural, salicylaldehyde and 2-hydroxynaphthaldehyde. Analytical, IR, 1H N...