1,508 research outputs found
Acoustic and Volumetric Properties of Digoxin and Thiabendazole in 1, 4 Dioxane at 303 K
Acoustical and volumetric properties have been measured for substituted heterocyclic compounds digoxin and thiabendazole in 1, 4 dioxane at 303 K. The ultrasonic velocity measurement have been performed to evaluate acoustical parameter such as adiabatic compressibility (βs), partial molal volume (ɸv), intermolecular free length (Lf), apparent molal compressibility (ɸk), specific acoustic impedance (Z), relative association (RA), salvation number (Sn), limiting apparent molal compressibility (ɸ0k), limiting apparent molal volume(ɸ0v) and their constant (Sk,Sv). The viscosity coefficient (A, B) was evaluated by using john–dole equation. These parameters throw the light on the solute-solvent interaction and solute-solute interaction
PHYTOCHEMICAL AND PHARMACOLOGICAL PROFILE OF BIOPHYTUM SENSITIVUM (L) DC
Biophytum sensitivum (L.) DC (Family: Oxalidaceae) is a medicinal plant widely used in the treatment of various health aliments throughout the world. The plant extract showed the presence of flavonoids, saponins, tannins, terpenes, steroids, amino acids, essential oil, polysaccharides and pectin. The plant has been extensively studied by various researchers for its biological activities and therapeutic potentials such as analgesic, anti-pyretic, anti-inflammatory, immunomodulatory, antitumor, antidiabetic, antioxidant, antibacterial, antihypertensive, chemoprotective, radioprotective and antifertility. The present review is an effort to provide detailed information on folkloric uses, chemical compositions, pharmacological activities of the extracts and isolated compounds and safety profile of Biophytum sensitivum for further research studies
पिंजऱ्यातील मत्स्यशोतिचे पर्यावरणावरील परिणाम आणि त्यांचे उपशमन
Cage aquaculture requires suitable site, materials to fabricate cage, nutritionally
balance feed and healthy seed. The cage farm depending upon intensification generates the
considerable wastes which include uneaten food, excretory products (faecal matter and
urinary products). Many cage aquaculture activities utilize chemicals for prophylactic as well
as therapeutic purpose which further contributes to the total waste discharge. Further,
microorganisms and parasites associated with caged fish also contribute towards cumulative
environmental degradation
समुद्रातल्या पिंजऱ्यातली संगोपन मत्स्यशोति
For the grow-out trials, circular cages of diameter ranging from 6-15 meters have
been tried by CMFRI. However, cage diameter 6-10 is recommended for the culture of
Mullet, Cobia, Pompano, Sea bass and Pearl spot. The grow-out of candidate species in caged
enclosures requires proper planning and management. The critical inputs like right kind of
seed, nutritionally balanced feed and routine cage maintenance activity decide the success of
grow-out production. Unlike closed or semi-closed culture systems, marine environment is
more diverse and dynamic, thus did not offer much scope for the environmental as well as
biological manipulations. After proper site selection and cage installations, cages should be
stocked with recommended numbers of seed depending upon water volume/ cage area
ANTIDEPRESSANT ACTIVITY OF AQUEOUS EXTRACTS OF FRUITS OF TERMINALIA CHEBULA AND PHYLLANTHUS EMBLICA IN BEHAVIOURAL MODELS OF DEPRESSION: INVOLVEMENT OF MONOAMINERGIC SYSTEM
Objectives: Terminalia chebula (TCh) and Phyllanthus emblica (PE) posses wide range of central nervous system activity. This study was conducted to investigate the antidepressant activity and mechanism action of aqueous extract of TCh & PE using forced swimming test (FST) and tail suspension test (TST).
Methods: Aqueous extracts of TCh (390, 780 & 1560mg/kg) and PE (390, 780, 1560 & 3120 mg/kg) were administered for seven days to mice and immobility time was measured in FST & TST. Extracts were administered for 14 days and immobility time was measured in chronic FST. The mechanisms of antidepressant effect of TCh and PE were studied using prazosin (1mg/kg), levosulpiride (20mg/kg) and p-CPA (300mg/kg) in TST.
Results: In FST, 780 & 1560 mg/kg of TCh and 1560 & 3120 mg/kg of PE reduced immobility time while in TST, 1560 mg/kg of TCh and 3120 mg/kg of PE decreased immobility significantly compared to control. In chronic FST, only 780 & 1560 mg/kg of TCh showed significant reduction. Antidepressant effect of TCh was reversed by prazosin while antidepressant effect of PE was reversed by prazosin and levosulpiride significantly in TST.
Conclusions: The aqueous extracts of TCh and PE possess antidepressant activity at higher doses. This effect was possibly mediated through mono aminergic pathways
Dielectric study of Syzygium cumini Lin. at 9.85 GHz frequency.
The values of dielectric constant ( ), dielectric loss (), relaxation time (ï´p), conductivity (ï³p) and moisture content of pulverized Syzygium cumini Lin. were measured for different packing densities at 9.85 GHz microwave frequency and different temperature (20ï‚°c, 35ï‚°c and 50ï‚°c). Experimental results on powders of different packing fractions (ï¤r) were used to obtain transformation to 100% solid bulk using correlation formulae of Landau- Lifshitz-Looyenga and Bottcher. There is fair agreement between the calculated values of dielectric parameters and the values obtained experimentally for solid bulk. This shows cohesion in the particles of spicy products under investigation
Fisheries geographical information system for Greater Mumbai region in Maharashtra, India
Geographical information system (GIS) is an invaluable decision support tool, designed to address spatially related
problems for management of natural resources. The power of GIS lies in its ability to visualise and relate various types of
geo-referenced spatial and non-spatial data allowing users to analyse them. In India, use of GIS in fisheries management is
yet to find its rightful place. An effort has been made in the present study to design and organise a fisheries spatial information
system for Greater Mumbai region in Maharashtra to serve as a macro-level database for the planners and administrators,
which can be used for querying, analysing and displaying datasets in the form of graphs and summarised tabular data for all
the fisheries infrastructural facilities. This GIS will be of immense help to planners, managers and administrators in quick
storing, retrieving and updating the required information for management of fisheries in Greater Mumbai region
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Solid crystal suspension of Efavirenz using hot melt extrusion: exploring the role of crystalline polyols in improving solubility and dissolution rate
The poor aqueous solubility of drugs has emerged as a major issue for pharmaceutical scientists from many decades. The current study explores the manufacture and development of a thermodynamically stabilized solid crystal suspension (SCS) of poorly water soluble drug efavirenz via hot melt extrusion. Efavirenz is a non-nucleoside reverse transcriptase inhibitor and belongs to BCS class II. The SCS was prepared using pearlitol and xylitol as a crystalline carrier. The drug-excipient blend was processed by hot melt extrusion with up to 50% (w/w) drug loading. Physico-chemical characterization of the SCS conducted via a scanning electron microscopy showed crystalline morphology. The solid state analysis undertaken by using differential scanning calorimetry and hot stage microscopy confirmed that SCS are in crystalline state. Similarly, X-ray powder diffraction analysis revealed that pure drug, crystalline carriers and developed SCS are in crystalline state. The FTIR chemical imaging analysis of SCS formulations showed a homogeneous drug distribution within respective crystalline carriers while an advanced chemical analysis via atomic force microscopy and Raman analysis complemented the foregoing findings of the FTIR imaging. The developed SCS1 formulation showed up to 81 fold increase in the solubility and 4.1 fold increase in the dissolution rate of the drug compared to that of the bulk substance. Surprisingly, the developed SCS formulation remained stable for a period of more than one year at accelerated conditions inferred from dissolution studies. It can be concluded that the SCS approach can be used as an alternative contemporary technique to enhance the dissolution rates of many other poorly water-soluble drugs by means of thermal HME processing
Utjecaj sadržaja lijeka i veličine aglomerata na tabletiranje i oslobađanje bromheksin hidroklorida iz aglomerata s talkom pripremljenih kristalokoaglomeracijom
The objective of the investigation was to study the effect of bromhexine hydrochloride (BXH) content and agglomerate size on mechanical, compressional and drug release properties of agglomerates prepared by crystallo-co-agglomeration (CCA). Studies on optimized batches of agglomerates (BXT1 and BXT2) prepared by CCA have showed adequate sphericity and strength required for efficient tabletting. Trend of strength reduction with a decrease in the size of agglomerates was noted for both batches, irrespective of drug loading. However, an increase in mean yield pressure (14.189 to 19.481) with an increase in size was observed for BXT2 having BXH-talc (1:15.7). Surprisingly, improvement in tensile strength was demonstrated by compacts prepared from BXT2, due to high BXH load, whereas BXT1, having a low amount of BXH (BXH-talc, 1:24), showed low tensile strength. Consequently, increased tensile strength was reflected in extended drug release from BXT2 compacts (Higuchi model, R2 = 0.9506 to 0.9981). Thus, it can be concluded that interparticulate bridges formed by BXH and agglomerate size affect their mechanical, compressional and drug release properties.Cilj rada bio je praćenje utjecaja sadržaja bromheksidin hidroklorida (BXH) i veličine aglomerata na mehanička svojstva, kompresivnost i oslobađanje ljekovite tvari iz aglomerata pripravljenih kristalokoaglomeracijom (CCA). Optimizirani pripravci aglomerata (BXT1 i BXT2) pripravljeni CCA metodom pokazuju adekvatnu sferičnost i čvrstoću potrebnu za učinkovito tabletiranje. U oba pripravka se smanjenjem veličine aglomerata smanjivala i čvrstoća, neovisno o količini ljekovite tvari. Međutim, povećanje prosječnog tlaka s povećanjem veličine čestica primijećeno je u pripravku BXT2 s omjerom BXH-talk 1:15,7. Iznenađuje da su kompakti pripravljeni iz BXT2, s visokim sadržajem BXH, imali veću vlačnu čvrstoću, dok su BXT1 s niskim sadržajem BXH (BXH-talk, 1:24) imali manju čvrstoću. Veća vlačna čvrstoća imala je za posljedicu produljeno oslobađanje ljekovite tvari iz BXT2 (Higuchijev model, R2 = 0,9506 do 0,9981). Može se zaključiti da mostovi među česticama BXH i veličina aglomerata utječu na njihova mehanička i kompresivna svojstva te na oslobađanje ljekovite tvari
Application of Remote Sensing GIS in Agriculture
This article provides an overview of some of the recent research in agriculture involving remote sensing and GIS. Attention focuses on application of remote sensing and GIS specially in agriculture including geography, land surveying, most Earth Science disciplines, parent child relationship, unique identification, attributes, technical parameters, 2D/3D view and any other requirement customized. These advances have been made over recent years and foundations for future research established and can be efficiently used in Agriculture for better results
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