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methods provide the tools to accurately access the geographic origin and
diversification of crop species. In the present commentary, I
urge the common bean community to face those methods and a tree-thinking mentality with
regards to the long standing debate of the origin of common bean. Such efforts
will ultimately bring back interest into wild bean studies and
reinforce the uniqueness of this species as a system to study diversification,
domestication and adaptive processes across the two most diverse hotspots in
Setting: Swedish county hospital. Objective: Pulmonary M. celatum infection has been previously described only twice in an immunocompetent
individual with no pre-existing chest disease. We describe the first Swedish
case report of unusual drug-related complications and review the literature. Discussion: Atypical mycobacteriosis is often difficult to
treat. We describe a fatal case of m celatum pneumonia in a previously healthy
patient, unusual side effects encountered during
her treatment and also the report of the utility of beta-2-microglobulin as a way
to measure disease activity in mycobacterial infections. Conclusions: M. celatum may cause fatal
pneumonia in previously healthy individuals. Treating the disease may be
fraught with difficulty and there is a risk for very severe side effects, all
of which must be weighed before taking the decision to treat this disease.
The study of swirling jet
combustor for biomass coal co-firing is of great interest for energy industry.
The biomass co-firing can serve as a NOx reduction method as well as the better
use of renewable energy source. Large eddy simulation (LES) and RANS modelling
have been performed with two different burner designs. Usually pulverized
coal-biomass mixture enters the furnace along with primary air through primary
pipe, and the secondary pipe provides necessary air and mixing for combustion.
The improved model has three passages including primary, secondary and middle
passage for swirling. The simulations on two
geometries have been compared, and the aim is to design a better and improved
burner model for better pre-combustion mixing in the biomass co- fired furnace.
The results from two-way and three-way geometry have been compared with each
other as well as with the results from the furnace model used by Apte and
The mechanical alloying process
has been used to prepare nanostructured Fe31Co31Nb8B30 (wt%) alloy from pure elemental powders in a high energy planetary
ball-mill Retsch PM400. Microstructural changes, phase transformation and kinetics
were studied by X-ray diffraction, differential scanning calorimetry and M?ssbauer
spectrometry. The crystallite size reduction down the nanometer scale (~8 nm) is accompanied by the
introduction of internal strains up to 1.8% (root-mean square strain, rms). Further
milling time leads to the formation of partially paramagnetic amorphous structure in which bcc FeCo nanograins are
embedded. The kinetics of amorphization during the milling process can be described by two regimes characterized
by different values of the Avrami parameter n1 = 1.41 and n2 = 0.34. The excess
enthalpy due to the high density of defects is released at temperatures below 300°C.
The glass transition temperature increases with increasing milling time.
This research deals with the forward extrusion process of tubes. In this process, a piercing process was carried out on the billet to produce the tube, followed directly by a reduction in the wall thickness. A specific geometrical shape for the piercing zone and the wall thickness reduction zone were chosen and designed. The effects of the redundant shear strain and the magnitude of the extrusion load were investigated and simulated with the finite element method using Q Form software program. Lead was used as model materials since (if the experiments were carried out at room temperature) it has the similar behavior of the steel at high temperature. The results obtained have shown that at the piercing zone, the lowest values of the extrusion load, the redundant strain, the total strain and the finite element effective strain were when a piercing tool (mandrel) of (C = 1.1) was used. While, at the die zone, the lowest values of the extrusion load, the redundant strain, the total strain was when a die of (C = 0.9) was used.
In the present investigation, series of Bis (heterocycle)s bearing pyrazoline in combination of the imidazole derivatives have been synthesized via 1,3-dipolar cycloaddition reactions of N-(nitrobenzyl)-imidazole nitrile imines with different dipolarophiles. All the newly synthesized compounds were characterized and screened for analgesic-anti-inflammatory activities and were compared with the standard drugs. The compounds exhibited excellent anti-inflammatory and analgesic activities. Out of the compounds studied 4b, 4d and 4g compounds shown statistically significant activity comparable to the standard drugs Ibuprofen and Aspirin at the same dose.
This work deals with the development of multi-cultural network-centric dynamic models under the influence of personal intra- and inter-members, as well as community. Each individual member of a society is influenced by her/his interactions with fellow members of the family, neighborhood, region and the universe. The behavior of such complex and highly interacting social networks is characterized by stochastic interconnected dynamical systems. The primary goal is on laying down an investigation of both qualitative and quantitative properties of this network dynamical system. In particular, we would like to determine the regions of conflicts and coexietence as well as to establish the cohesion and stability of emerging states. This is achieved by employing the method of system of differential inequalities and comparison theorems in the context of the energy function. The developed energy function method provides estimates for regions of conflict and cooperation. Moreover, the method also provides sufficient conditions for the community cohesion and stability in a systematic way.