2,396 research outputs found
Solanum americanum var. odishensis Kalidass & P. Murugan 2016, var. nov.
No full textSolanum americanum Mill. var. odishensis Kalidass & P. Murugan, var. nov. (Fig. 1). Diagnosis: Solanum americanum var. odishensis is closely allied to Solanum americanum Mill., but differs from it in having prickly angular stem, inflorescence 5-8 flowered, style erect, densely villous in middle and curved at apex. Type: INDIA, Odisha: Kandhamal District, G. Udayagiri Forest range, 14 July 2015, 20˚07'204''N, 084˚22'187''E, ± 658m, Kalidass & Murugan 18021 (Holotype: CAL!, Isotypes: MH!, RPRC!). Erect annual herbs, 100-130 cm high. Stem 4-angular with prickles, branched, pubescentglabrescent; branches ascending. Leaves simple, alternate or sub-opposite, ovate or ovatelanceolate, 4-9×3-5 cm, cuneate or obtuse at base, margin entire to sinuate or sinuate-dentate, acute or acuminate at apex, pale beneath, glabrous or pubescent on both surfaces; lateral nerves 4- 6 pairs; petioles 2-3 cm long, flat or terete. Inflorescence axillary or extra-axillary, umbellate or sub-umbellate cymes, 5-8 flowered. Flowers 3-5 mm long, creamy white; peduncle 2-3 cm long, slender, glabrous or pubescent; pedicels 8-10 mm long, slender, glabrous. Calyx 5-lobed, valvate,1.5 mm in diameter, base united; calyx-lobes deltoid, each lobe less than 1 mm long, green, pubescent, margin ciliate, reflexed away from mature berries, persistent. Corolla valvate, 5- lobed, 2-3 mm in diameter, star-like, base united; lobes ovate or lanceolate 2.5 mm long, reflexed, margin ciliate. Stamens 5, epipetalous; anthers lanceolate, 1 mm long, yellow, dithecus, basifixed and dehisces apically; filament c. 0.5 mm long, glabrous. Ovary globose, c. 0.8 mm long, glabrous; style less than 1.5 mm long, filiform, densely villous in the middle, curved at apex; stigma capitate, green. Berries globose, 5-8 mm in diameter black or dull black when ripe, glossy. Seeds 10-30, ovate or orbicular, 1.0-1.5 mm long, brownish-white, compressed. Flowering and fruiting: May - September. 1 Corresponding author. Email: [email protected] Etymology: Solanum americanum var. odishensis is named after the state Odisha, one of plant diversity zones in Eastern Ghats, India. Distribution: The new variety in distributed in the Odisha state of India as an Eastern Ghats element. Habitat: Solanum americanum var. odishensis is found to grow in open scrub forest, usually near water courses and shady localities. It grows along with Lantana camara L., Sida acuta Burm. f., Sesamum indicum L., Solanum torvum Sw., Albizia lebbeck (L.) Benth., Neolamarckia cadamba (Roxb.) Bosser. Paratypes: INDIA, Odisha state, Kandhamal District, Paburia, 20˚09'308''N, 084˚15'339''E and Alt. ±681 MSL; 14.07.2015, Kalidass & Murugan 18024 (RPRC) Kalinga Ghat, 20˚09'867''N, 084˚24'870''E and Alt. ±737 MSL; 15.07.2015, Kalidass & Murugan 18027 (RPRC) Ganjam District, Sikulipadara, 19˚24'086''N, 084˚20'372''E and Alt. ±594 MSL; 19.08.2015, Kalidass & Murugan 18045 (RPRC) Gajapati District, Parlakhemundi, Jajpur, 18˚47'630''N 084˚07'230''E and Alt. ±71 MSL; 21.08.2015, Kalidass & Murugan 18067 (RPRC) Ganjam District, Taptapani, 19˚29'126''N, 084˚23'660''E and Alt. ±439 MSL; 22.08.2015, Kalidass & Murugan 18087 (RPRC).Published as part of Plant Taxon, Bangladesh J., Murugan, P., Kalidass, C. & Panda, P. C., 2016, A New Variety Of Solanum Americanum Mill. (Solanaceae), From Eastern Ghats, India, pp. 83-85 in Bangladesh Journal of Plant Taxononomy 23 (1) on pages 83-85, DOI: 10.3329/bjpt.v23i1.28350, http://zenodo.org/record/633079
A Study of Scientific Factors in Lord Murugan Worship
No full textWorshipping God is the treasury of human society. This article is on the basis of folk events found in Palani Murugan worship. In Murugan worship, people's culture, customs and lifestyles become the object of study. This article brings forth the rituals that takes place during Lord Murugan festivals, such as dance, songs, music, taking Kaavadi, paying penance to lord, unit piercing and so on. All this customs and rituals of the people are explored here in a psychological manner. This article documents the scientific factors involved in unit piercing and the benefits of unit piercing
Ytterbium-doped tantalum pentoxide waveguide lasers
No full textWe have demonstrated a Yb:Ta2O5 waveguide laser fabricated by RF magnetron sputtering on oxidised silicon. The waveguide laser was end-pumped with a laser diode at 977 nm and lasing was observed between 1015 and 1020 nm. The launched pump power threshold and slope efficiency were measured to be ~25 mW and 1.78 %, respectively
Murugan and its Worship in Kapilar songs
No full textKapilar sang most of the songs in Ettuthogai and Pathupaatu of Sangam literature. He was also called 'Kurinjikor Kapilar'. Out of that 235 songs were sung by Kapilar. Of these 38 songs are about the external subjects and the remaining 197 songs are about internal subjects. Out of this 197 1 songs belong to Paalai land, 3 to Neythal land, 1 to Mullai land and 1 to Marutham land. The remaining 191 songs belong to Kurinji land. There are others who have sung a verse in such detail. Since Kapilar has sung many Kurinchi songs, the aim of this article is to study the Kurinji land god Murugan and its worship
A panoramic view of motherhood by juxtaposing the select trilogies of Flora Nwapa and Perumal Murugan
No full text<p>This article by Vimala Johnshi Rani compares the portrayal of motherhood in the works of African writer Flora Nwapa and Indian writer Perumal Murugan. By examining trilogies by each author, Rani explores how women in post-colonial South Africa and India navigate societal expectations and personal desires.</p>
Chalcogenide microsphere fabricated from fibre taper-drawn using resistive heating
No full textOver the last decade extreme interest for microsphere resonators has increased rapidly due to their very high quality Q factors, the ease with which they can be manufactured and their versatility in terms of materials and dopants for plenty of passive and active devices. Furthermore, microsphere resonators have the potential to add significant functionality to planar lightwave circuits when coupled to waveguides where they can provide wavelength filtering, delay and low-power switching, and laser functions [1].Recently, chalcogenides are rapidly establishing themselves technologically superior materials for emerging application in non-volatile memory and high speed switching [2] and have been considered for a range of other optoelectronic technologies. Chalcogenide glasses offer a wide wealth of active properties, an exceptionally high nonlinearity, photosensitivity, the ability to be doped with active elements including lanthanides and transitional metals and are able to form detectors, lasers and amplifiers and offer semiconductor, optical, acousto-optic, superconducting and opto-mechanical properties. Unlike any other optical material, they have been formed in to a multitude of form: such as optical fibres, thin films, bulk optical components, microsphere resonators, metamaterials and nanoparticles, patterned by CMOS compatible processing at the sub micron scale. To date, most studies on microsphere resonators have utilized silica microspheres fabricated by melting the tip of an optical fibre with the resulting stem attached to the microsphere used as a tool to place the sphere in the required location while characterizing the microsphere. In this paper high quality chalcogenide (As2S3) microspheres with diameters down to 74 µm are directly fabricated from the taper-drawn using a resistive heating process. A reasonable high quality factor greater than 105 near the wavelength of 1550 nm is demonstrated with an efficient coupling using a fibre taper with a diameter of 2 µm
Data for Germanium-on-silicon waveguides operating at mid-infrared wavelengths up to 8.5um
No full textThe .xslx file contains the tabulated numerical data used to create the figures in "Germanium-on-silicon waveguides operating at mid-infrared wavelengths up to 8.5um",
by Milos Nedeljkovic, Jordi Soler Penades, Vinita Mittal, Ganapathy Senthil Murugan, Ali Z. Khokhar, Callum Littlejohns, Lewis G. Carpenter, Corin B. E. Gawith, James S. Wilkinson, and Goran Z. Mashanovich
published in Optics Express, accepted in September 2017.
The .txt file contains a brief description of the .xslx file.</span
Yb<sup>3+</sup>-doped silica WGM milled microrod laser
No full textA fast and versatile fabrication method for high Q milled microrod resonators, directly on rare-earth doped fibers, is demonstrated using a pulsed CO2 laser. Evanescently pumped WGM microlaser with ~9µW output power has been achieved
Side-pumped WGM milled microstub resonator laser
No full textWhispering Gallery Mode (WGM) resonators are promising candidates for realization of ultra-small micro lasers. Conventional 3D resonators such as micro toroids [1], micro spheres [2, 3] and microbottles [4] are well studied as both passive and active devices. The excitation and signal collection are mostly done using evanescently coupled micro-sized fibers [5], integrated waveguides [3] and\or collecting the scattered light [6]. As the spectrum and coupling efficiency highly depend on the excitation position, the coupling system requires precise alignment, and packaging is complex. Here, we demonstrate a completely new micro laser based on WGM generated in an Yb3+-doped stub resonator side-pumped at 976nm wavelength
Nattamizh Murugan in the worship of Nagarathar
No full textThe Nattukottai Nagarathars lived their lives according to the maxim "Thiraikadal odiyum thiraviyam thedu". They have been living in Sivaganga and Pudukottai districts for a long time. The great people who are doing good business in the Pandya country are referred to as 'Nagarathar' and 'Chettiar'. They are also known as Nattukottai Nagarathar, Dhanavanigar, Dhanavaisiyar, Magudadhana Vaishya, Nattarasan Kottai Chettiar, Gnanadesikar etc. Due to the large share of this community, today they have established and worshipped the Hindu God Muruga all over Asia. This article focuses on the background of the people who lived in Tamil Nadu and South East Asian countries by cooking temples for the Tamil God Muruga, carrying out various renovations and following unique cults in Murugan worship
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