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Now showing items 1-20 of 159

Lanthanume-strontium copper silicates as intense blue inorganic pigments with high near-infrared reflectance

Sheethu, Jose; Reddy, Mundlapudi Lakshmipathi (Elsevier, 2011-04-11)

Novel non-toxic intense blue near-infrared reflecting inorganic pigments having the general formula Sr1exLaxCu1eyLiySi4O10 (x ¼ y ranges from 0 to 0.5) were developed as viable alternatives to existing toxic cobalt based ...
N‑Heterocyclic Carbene Catalyzed Reaction of Cinnamils Leading to the Formation of 2,3,8-Triaryl Vinyl Fulvenes: An Uncommon Transformation

Sinu, C R; Eringathodi, Suresh; Vijay Nair (American Chemical Society, 2012-02-12)

In the general context of organocatalysis,1 N-heterocyclic carbenes (NHCs) occupy a prominent position. NHC catalysis2 originated as early as 1958 with Breslow’s demonstration3 that thiazolylidene was involved in ...
Design and Development of a Programmable Meta Search Engine

Manoj, M; Elizabeth Jacob (Elsevier, 2012-07)

To the web user, a Meta Search Engine (MSE) appears much like a regular search engine (SE). MSE, unlike an SE does not have an index. Instead, it dynamically queries multiple search engines; extracts, fuses and re-ranks ...
Effect of Ba(Zn1/3Ta2/3)O3 and SiO2 ceramic fillers on the microwave dielectric properties of butyl rubber composites

Chameswary, J; Sebastian, M T (Springer, 2012-08-02)

Butyl rubber–Ba(Zn1/3Ta2/3)O3 (BR–BZT) composites and butyl rubber–silica (BRS) composites were prepared by sigma mixing. The dielectric properties at 1 MHz and 5 GHz of BR–BZT and BRS composites were investigated as ...
Antagonistic Potential of Some Isolated Soil Fungi Against Brown Root Rot Disease of Tea in Barak Valley of Assam

Morang, Pranjal; Dutta, B K; Ranjita, I; Dileep Kumar, B S (2012-08-10)

As tea is a long duration perennial crop it is very much prone to attack by several pathogens. Brown root rot disease (Fomeslamoensis (Murr.) Sacc. and Trott) is the one of the important primary root disease of teawhich, ...
Effect of isovalent substitutions on the microwave dielectric properties of Ca4La6(SiO4)4(PO4)2O2 apatite

Dhanesh Thomas; Pulanchiyodan, Abhilash; Sebastian, Mailadil T (Elsevier, 2012-08-21)

The isovalent substitutions of Sr2+, Pr3+, (GeO4)4 and (VO4)3 in the respective cationic and anionic sites of Ca4La6(SiO4)4(PO4)2O2 have been accomplished. The substitution of Sr2+ for Ca2+ decreases er and Qu f but ...
Grain size analysis and characterization of sedimentary environment along Thiruchendur coast, Tamilnadu, India

Rajganapathi, V.C; Jitheshkumar, N; Sundararajan, M; Bhat, K H; Velusamy, S (Springer, 2012-11)

Thiruchendur coast of southern Tamilnadu, India has been studied for grain-size spectrum and textural parameters namely mean, sorting, skewness and kurtosis. The grainsize spectrum shows a marked variation in the berm, ...
Arsenic Trioxide Toxicity in H9c2 Myoblasts—Damage to Cell Organelles and Possible Amelioration with Boerhavia diffusa

Vineetha, V.P; Prathapan, A; Soumya, R.S; Raghu, K.G (Springer Science+Business Media, 2012-11-19)

Arsenic trioxide (ATO) has been long used as a chemotherapeutic agent because of its significant anticancer property. Unfortunately, the use of ATO is limited due to its cardiotoxic effects. The present study evaluates ...
p-Conjugated polymer–Eu3+ complexes: versatile luminescent molecular probes for temperature sensing†

Balamurugan, A; Reddy, M.L.P; Jayakannan, M (The Royal Society of Chemistry, 2012-12-04)

We report p-conjugated polymer–Eu3+ ion complexes as new potential luminescent thermo-sensitive molecular probes. Carboxylic acid functionalized segmented p-conjugated polymers having oligophenylenevinylene (OPV) ...
MicroRNA–mRNA interaction network using TSK-type recurrent neural fuzzy network

Vineetha, S; Chandra Shekara Bhat, C; Sumam Mary, Idicula (Elsevier, 2012-12-20)

MicroRNAs are short non-coding RNAs that can regulate gene expression during various crucial cell processes such as differentiation, proliferation and apoptosis. Changes in expression profiles of miRNA play an important role ...
Synthesis of chemically pure, luminescent Eu3+ doped HAp nanoparticles: A promising fluorescent probe for in vivo imaging applications.

Hasna, K; Sasanka Kumar, S; Komath, M; Manoj Raama Varma; Jayaraj, M K; Rajeev Kumar, K (Royal Society of Chemistry, 2013)

The poor solubility, poor biocompatibility and disposal issues make fluorescent quantum dots such as CdSe, CdS, ZnS, InP, InAs, etc. impractical for imaging tissues or intercellular structures. As calcium phosphate is the ...
Effect of micro-and nano-ﬁllers on the properties of silicone rubber-alumina ﬂexible microwave substrate

Namitha, L K; Chameswary, J; Ananthakumar, S; Sebastian, M T (Elsevier, 2013)

Silicone rubber composites filled with micro- and nano-alumina were prepared and the effect of filler contents on the microwave dielectric, mechanical, thermal and moisture absorption properties were investigated. The ...
Syntheses of normal, expanded, strapped and N-confused calixbenzophyrins from a single starting material

Salini, P S; Anju, K S; Reddy, M L P; Srinivasan, A (The Royal Society of Chemistry, 2013)

The syntheses and spectral and structural characterization of hitherto unknown p-benzene incorporated normal, expanded, strapped and N-confused calixbenzophyrins are achieved; altogether five new macrocycles from a single ...
Determination of the contact angles of kaolin intercalates of oleochemicals derived from rubber seed (Heveabrasiliensis) and tea seed (Cameliasinensis) oils by the capillary rise method

Mgbemena, C O; Mgbemena, C E; Rugmini Sukumar; Menon, A R R (Science Publishing Group, 2013)

Pristine kaolin was organically modified by employing derivatives of oleochemicals namely rubber seed oil (SRSO) and tea seed oil (STSO). Intercalation was attained by the entrance of hydrazine hydrate as co-intercalate. ...
Electrical and thermal properties of low permittivity Sr2Al2SiO7 ceramic ﬁlled HDPE composites

Manu, K M; Ananthakumar, S; Sebastian, M T (Elsevier, 2013)

The feasibility of low permittivity Sr2Al2SiO7 (SAS) ceramic filled high density polyethylene (HDPE) composites for substrate and packaging applications has been investigated in this paper. The composites were prepared by ...
Chain folding controlled by an isomeric repeat unit: helix formation versus random aggregation in acetylene-bridged carbazole-bipyridine co-oligomers

Divya, K P; Sreejith, S; Suresh, C H; Divya, S P; Ajayaghosh, A (Wiley, 2013)

An unprecedented, positional effect of the isomeric repeat unit on chain folding in donor-acceptor-linked oligomers, which contain alternating bipyridine and carbazole moieties that are connected through an acetylinic ...
1,3-Metal-carbon bonding predicts rich chemistry at the edges of aromatic hydrocarbons

Suresh, C H; Frenking, G (American Chemical Society, 2013)

The existence of a hitherto unrecognized 1,3-metal-carbon bond (1,3-MC bond) in particular types of transition-metal complexes is proposed using evidence from CCD X-ray structure analysis and DFT calculations. The name ...
Palladium catalyzed reaction of ortho-functionalized aryl iodides with bicyclic hydrazines: facile route toward heteroannulated cyclopentenes and azabicycles

Jubi John; Rani, R; Sarath Chand, S; Praveen, P; Nayana Joseph; Suresh, E; Radhakrishnan, K V (Elsevier, 2013)

A palladium catalyzed tandem protocol for the synthesis of cyclopentene fused heterocycles from diazabicyclic alkenes and ortho-functionalized aryl iodides has been elaborated. This tandem protocol was utilized for the ...
Effect of isovalent substitutions on the microwave dielectric properties of Ca4La6(SiO4)4(PO4)2O2 apatite

Dhanesh, T; Abhilash, P; Sebastian, M T (Elsevier, 2013)

The isovalent substitutions of Sr2+, Pr3+, (GeO4)4− and (VO4)3− in the respective cationic and anionic sites of Ca4La6(SiO4)4(PO4)2O2 have been accomplished. The substitution of Sr2+ for Ca2+ decreases εr and Qu × f but ...
Boerhaavia diffusa L. attenuates angiotensin II-induced hypertrophy in H9c2 cardiac myoblast cells via modulating oxidative stress and down-regulating NF-kBeta and transforming growth factor Beta1

Prathapan, A; Vineetha, V P; Abhilash, P A; Raghu, K G (Cambridge University Press, 2013)

The present study evaluated the antihypertrophic potential of the ethanolic extract of Boerhaavia diffusa (BDE), a well-known edible cardiotonic plant reported in Ayurveda against angiotensin II-induced hypertrophy in ...

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