1,659 research outputs found
Evolutionary trends in the hemoglobins of murine animals
The evolutionary origin of murine line based on a phylogenetic tree made on sequence data of ∞- and β -hemoglobin chains, followed by the diversity spectrum of hemoglobin genes in two wild species of murine rodents: Rattus rattus rufescens (house rat) and Bandicota indica (bandicoot rat) has been reported. Each house rat contains six hemoglobin types involving two infinity-and three β-chains, which suggests a probable gene duplication at the oc chain locus and a gene triplication at the β-chain locus. Each bandicoot rat contains one infinity-and two β -chains suggesting a probable gene duplication at the β-chain locus. Peptide pattern analysis of the polypeptide chains of these murine hemoglobins further indicates that intraspecies differences among duplicated chains of the same kind are less than interspecies differences among corresponding ∞-and β -chains
MICROSCOPICAL OBSERVATIONS ON CISSUS VITIGINEA L.
The present study discloses detailed investigation on Macro and Microscopical characters of the leaves and roots of Cissus vitiginea L. Yanadhi tribes of Nellore district, have been using the root powder and leaf paste of C. vitiginea as a single drugs remedy to heal the wounds and to get immediate relief from swellings and sprains respectively. The plant belongs to Vitaceae family. In dried form identification of leaves and roots is hard and at present authentic pharmacognostical data is not available. With this view, leaves and roots of C. vitiginea were subjected to various pharmacognostical studies like, powder microscopy, sectioning, maceration and florasense studies to identify authentically. In the microscopical studies, different cell structures like trichomes, elongated fibers, raphide sacs, acicular crystals and different arrangements like, raphide sacs in the parenchymatous region reddish tannin content in the phloem region were noticed
Vortex matching effect in engineered thin films of NbN
We report robust vortex matching effects in antidot arrays fabricated on thin
films of NbN. The near absence of hysteresis between field sweep directions
indicates a negligible residual pinning in the host thin film. Owing to the
very small coherence length of NbN thin films (), the observations
suggests the possibility of probing physics of vortices at true nanometer
length scales in suitably fabricated structures.Comment: Submitted to Appl. Phys. Let
SCIENTIFIC VALIDATION AND STANDARDIZATION OF PARPATAKA AN AYURVEDIC DRUG WITH RESPECT TO FUMARIA INDICA
Objective: Fumaria indica is an essential curative herb and asserted as a prevalent weed across the plains of India. The entire plant is popularly employed in conventional systems of medicine for its therapeutic activities like anthelmintic, diuretic, diaphoretic, laxative, purging and stomachic. The entire plant is regarded to have therapeutical purposes in Ayurvedic and Unani systems of medicine and is employed in the preparation of important Ayurvedic formulation Parpataka. In Unani systems of medicine, it is used as shahtara. This contemporary study is intended to authenticate and validate the species Fumaria indica with respect to Parpataka drug.
Methods: The chief objective of this contemporary research work is to assess the various pharmacognostic properties like Macroscopical, Microscopical, Physiochemical and Fluorescence studies. Microscopical studies include cell structure and their arrangement, Physicochemical parameter s include loss on drying, total ash value, acid insoluble ash, water-insoluble ash, various extractive values etc. Qualitative tests for various functional groups were also carried out.
Results: The microscopical characters of leaf, stem and roots, physicochemical, preliminary phytochemical profiles were established.
Conclusion: The pharmacognostical screening on Fumaria indica is significant data for the identification and to determine the quality and purity of the plant material in future reviews
The electron electric dipole moment enhancement factors of Rubidium and Caesium atoms
The enhancement factors of the electric dipole moment (EDM) of the ground
states of two paramagnetic atoms; rubidium (Rb) and caesium (Cs) which are
sensitive to the electron EDM are computed using the relativistic
coupled-cluster theory and our results are compared with the available
calculations and measurements. The possibility of improving the limit for the
electron EDM using the results of our present work is pointed out.Comment: AISAMP7 Conference paper, Accepted in Journal of Physics: Conference
Series: 200
STANDARDIZATION OF BALAMULA CHURNA (SIDA CORDIFOLIA L. ROOT POWDER)
Objective: In this study, an attempt was made to generate information based on, physicochemical parameter preliminary phytochemical screening and HPTLC data needed for proper identification and authentication of Balamula Churna.
Methods: The physicochemical parameters such as water-soluble extractive, alcohol soluble extractive and loss on drying at 105 °C, total ash and acid insoluble ash were determined according to standard methods. HPTLC studies were conducted and Rf values were documented.
Results: Physicochemical parameter value were documented as pH (6.81%), LOD (7.5%), water-soluble extractive value (6.32%), alcohol soluble extractive value (5.92%) total Ash (9.00%) and Acid Insoluble Ash (1.60%). Preliminary phytochemical screening reveals the presence of glycoside, alkaloid, carbohydrate, phenol, flavonoid and saponin. HPTLC screening showed the presence of significant phytoconstituents with Rf value 0.02, 0.27, 0.34 and 0.96.
Conclusion: All the results obtained from this study can be helpful in evaluation quality, detection of adulteration and substitution and emphasizing the importance of standardization
Droplet actuation induced by coalescence: experimental evidences and phenomenological modeling
This paper considers the interaction between two droplets placed on a
substrate in immediate vicinity. We show here that when the two droplets are of
different fluids and especially when one of the droplet is highly volatile, a
wealth of fascinating phenomena can be observed. In particular, the interaction
may result in the actuation of the droplet system, i.e. its displacement over a
finite length. In order to control this displacement, we consider droplets
confined on a hydrophilic stripe created by plasma-treating a PDMS substrate.
This controlled actuation opens up unexplored opportunities in the field of
microfluidics. In order to explain the observed actuation phenomenon, we
propose a simple phenomenological model based on Newton's second law and a
simple balance between the driving force arising from surface energy gradients
and the viscous resistive force. This simple model is able to reproduce
qualitatively and quantitatively the observed droplet dynamics
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