204,028 research outputs found
Dixit Dominus a M. Bolzon
No full textTitre uniforme : Bolzon (17..-17..). Compositeur présumé. [Dixit Dominus. Voix (4), choeur à 4 voix, orchestre (Psaume 109). Fa majeur]Titre propre pris au départ. - La mention "a M. Bolzon" semblerait plutôt indiquer l'ancien possesseur. - Voix solistes : Sol 2 (2), Ut 4, Fa 4. - Choeur : Sol 2, Ut 3, Ut 4, Fa 4. - Vl 2, vla, vlc, cb, fl, ob 2, cl 2, fag 2, cor 2. - Ne figure pas dans le Catalogue thématique du grand motet françaisPrésentation musicale : [Partition]Incipit : Dixit Dominus Domino meo sede a dextris meisAppartient à l’ensemble documentaire : RISM1Appartient à l’ensemble documentaire : RISMMssPsaumes (musique
Dixit Dominus. Antonio Soler
No full textEl documento contiene el salmo a ocho voces y acompañamiento del compositor Antonio Soler titulado Dixit Dominus, que se conserva en la Biblioteca de Catalunya bajo la signatura M. 97. Se ofrece el texto en latín con su traducción al español y la partitura con la transcripción musical a notación moderna.N
A comment on "An arbitrage-free approach to quasi-option value" by Coggins and Ramezani
No full textIn their article ?An Arbitrage-Free Approach to Quasi-Option Value? [J. Environm. Econom. Management 35, 103-125, 1998], Coggins and Ramezani interpreted the concept of quasi-option value introduced by Arrow and Fisher [Quart. J. Econom. 88, 1974, 312-319] as being identical to Dixit and Pindyck?s real option value. This means their approach differs from the approach by Fisher and Hanemann [J. Environm. Econom. Management 14, 183-190, 1987] who formalized the concept of quasi-option value a decade before. By indirectly characterizing Dixit and Pindyck?s real option value Coggins and Ramezani confirmed classic results in the field of real options theory. --
Pseudoceros stellans Dixit & Bayyana & Manjebrayakath & Saravanane & Sudhakar 2019, sp. nov.
No full textPseudoceros stellans sp. nov. Dixit (Figs. 6, 7 & 8) Material examined: Holotype: One specimen (13 × 9 mm) as serial sections (16 Slides), remainder of animal in 70% ethanol. Collected on 21.5.2018, 15 m depth, Agatti Island (10°52′28′′N 72°11′11′′E), Lakshadweep, India (Regn. no. IO /IT/POY/00006) Type locality: Agatti Island, Lakshadweep, India. Etymology: From the Latin stellans (adjective) — starry or star studded; for stars like appearance on dorsum Diagnosis: Background body colour brown with numerous small white to yellow microdots on dorsum. Different sized yellow blotches present on dorsum but most of the small white blotches are present on marginal area. Half of the median area is marbled with irregular white shading, thus appearing as depigmented area. A thick black marginal band run around whole body including pseudotentacles. This marginal band is studded with microdots and small yellow blotches. Pseudotentacles are simple folding of the anterior margin, black and spotted with white dots on dorsal side. Cerebral eye cluster horseshoe shaped. Description: Live. Body small, oval and margin without ruffles. Background body colour brown (Fig. 6a). Numerous small white to yellow microdots present all over dorsum. White dots are numerous near median area and gradually turns yellow towards margins. Many yellow blotches of different sizes on dorsum near margins (Fig. 6a). Anterior half of median area is marbled with irregular white shading. Marginal band thick and black with minute yellow microdots and small yellow blotches. Pseudotentacles are simple foldings of the anterior margin, black and spotted with white dots on dorsal side. Cerebral eye cluster horseshoe shaped (Fig. 6b), tentacular eyes hard to recognize due to black colour of pseudotentacles. Ventral surface light brownish in colour. Preserved. Specimen brown in colour after fixation (Fig. 6c). Ventrally dull whitish in colour. Male and female pore are 0.6 mm apart, while female pore and sucker are 2 mm apart (Fig. 6d). Mouth and male pore are 1.2 mm apart while mouth and sucker are 3.9 mm apart. Pharynx ruffled with eight to nine folds and male pore is situated between last pair of pharyngeal folds. Cerebral eye cluster with about 60 - 65 eyes. Reproductive system: Male copulatory apparatus consists of seminal vesicle, free prostatic vesicle (Fig. 7a), penis papilla, penis stylet housed in male atrium which open outside via male pore. An oval seminal vesicle (317 x 157 µm) is present (Fig. 7b). Its rounded part oriented towards prostatic vesicle while tapered part is oriented towards cement glands. A free, small, circular and thick walled prostatic vesicle (80 x 58 µm) is present anterior to seminal vesicle (Fig. 7 a, b). Thickness of prostatic vesicle’s wall varies from 15 to 20 µm. Male atrium conical (283 µm x 187 µm) housing conical penis papilla (170 µm) with a stylet (Fig. 7c). Female copulatory apparatus consists of vagina, cement pouch surrounded by dense cement glands and female atrium. The vagina opens to a short female atrium via cement pouch which receives secretion from cement glands (Fig. 7c). Taxonomic remarks: Presence of ruffled pharynx, male copulatory apparatus just behind pharyngeal cavity, free prostatic vesicle, marginal tentacles formed by upfolding of anterior margin, centrally located sucker behind female pore (Faubel 1984) places Pseudoceros stellans sp. nov. in the family Pseudocerotidae while presence of characters such as smooth dorsal surface, single male copulatory apparatus with seminal vesicle (Fig. 4a) and armed penis papilla, pseudotentacles as simple folds of anterior margin, female pore equidistant from male pore and sucker (Faubel 1984; Newman and Cannon 1998) place this newly described species in the genus Pseudoceros. All of the above mentioned characters can be recognised in the present species from Agatti Island. The newly described species differs from all other congeners on the basis of dorsal colour and spots. Although there are some species under the genus Pseudoceros with spots (Pseudoceros astrorum Bulnes and Torres, 2014 Pseudoceros heroensis Newman and Cannon, 1994; P. josei Newman and Cannon, 1998; P. kylie Newman and Cannon, 1998; P. laingensis Newman and Cannon, 1998; P. leptostictus Bock, 1913, P. lindae Newman and Cannon, 1994; P. nigropunctatus Dixit, Raghunathan and Chandra, 2017 and P. vishnui Dixit, Raghunathan and Chandra, 2017) but the colour, size, arrangement, density and distribution of spots varies from species to species and is used for species identification. Pseudoceros josei, in terms of background colour and spots size and arrangement shows some affinity with the presently described species but it doesn’t have black marginal band. The spots turn white towards the margin (Newman and Cannon, 2005) which is opposite in case of P. stellans sp. nov. where spots turns yellow towards margin. Pseudoceros astrorum is also characterised by dark brown background with spots but it has a white marginal rim which is not present in P. stellans sp. nov. Pseudoceros kylie also possess dark brown background with cream microdots but has bright orange broken band just before the rim while the marginal band is black and continuous in P. stellans sp. nov. Other species such as P. laingensis (purple spots), P. leptostictus (small black and orange spots), P. lindae (golden yellow spots), P nigropunctatus (black spots with cream halo) and P. vishnui (purple to violet spots) possess spots with different types of colours, distribution and different type of marginal bands. Thus, in the light of above mentioned characters and comparisons, P. stellans sp. nov. is reported as a new species to science.Published as part of Dixit, Sudhanshu, Bayyana, Sharad, Manjebrayakath, Hashim, Saravanane, N. & Sudhakar, M., 2019, Polyclad fauna of Agatti Island, Lakshadweep, India: new records and description of two new species, pp. 246-260 in Zootaxa 4657 (2) on page 255, DOI: 10.11646/zootaxa.4657.2.2, http://zenodo.org/record/376911
Pseudoceros stellans Dixit & Bayyana & Manjebrayakath & Saravanane & Sudhakar 2019, sp. nov.
No full textPseudoceros stellans sp. nov. Dixit (Figs. 6, 7 & 8) Material examined: Holotype: One specimen (13 × 9 mm) as serial sections (16 Slides), remainder of animal in 70% ethanol. Collected on 21.5.2018, 15 m depth, Agatti Island (10°52′28′′N 72°11′11′′E), Lakshadweep, India (Regn. no. IO /IT/POY/00006) Type locality: Agatti Island, Lakshadweep, India. Etymology: From the Latin stellans (adjective) — starry or star studded; for stars like appearance on dorsum Diagnosis: Background body colour brown with numerous small white to yellow microdots on dorsum. Different sized yellow blotches present on dorsum but most of the small white blotches are present on marginal area. Half of the median area is marbled with irregular white shading, thus appearing as depigmented area. A thick black marginal band run around whole body including pseudotentacles. This marginal band is studded with microdots and small yellow blotches. Pseudotentacles are simple folding of the anterior margin, black and spotted with white dots on dorsal side. Cerebral eye cluster horseshoe shaped. Description: Live. Body small, oval and margin without ruffles. Background body colour brown (Fig. 6a). Numerous small white to yellow microdots present all over dorsum. White dots are numerous near median area and gradually turns yellow towards margins. Many yellow blotches of different sizes on dorsum near margins (Fig. 6a). Anterior half of median area is marbled with irregular white shading. Marginal band thick and black with minute yellow microdots and small yellow blotches. Pseudotentacles are simple foldings of the anterior margin, black and spotted with white dots on dorsal side. Cerebral eye cluster horseshoe shaped (Fig. 6b), tentacular eyes hard to recognize due to black colour of pseudotentacles. Ventral surface light brownish in colour. Preserved. Specimen brown in colour after fixation (Fig. 6c). Ventrally dull whitish in colour. Male and female pore are 0.6 mm apart, while female pore and sucker are 2 mm apart (Fig. 6d). Mouth and male pore are 1.2 mm apart while mouth and sucker are 3.9 mm apart. Pharynx ruffled with eight to nine folds and male pore is situated between last pair of pharyngeal folds. Cerebral eye cluster with about 60 - 65 eyes. Reproductive system: Male copulatory apparatus consists of seminal vesicle, free prostatic vesicle (Fig. 7a), penis papilla, penis stylet housed in male atrium which open outside via male pore. An oval seminal vesicle (317 x 157 µm) is present (Fig. 7b). Its rounded part oriented towards prostatic vesicle while tapered part is oriented towards cement glands. A free, small, circular and thick walled prostatic vesicle (80 x 58 µm) is present anterior to seminal vesicle (Fig. 7 a, b). Thickness of prostatic vesicle’s wall varies from 15 to 20 µm. Male atrium conical (283 µm x 187 µm) housing conical penis papilla (170 µm) with a stylet (Fig. 7c). Female copulatory apparatus consists of vagina, cement pouch surrounded by dense cement glands and female atrium. The vagina opens to a short female atrium via cement pouch which receives secretion from cement glands (Fig. 7c). Taxonomic remarks: Presence of ruffled pharynx, male copulatory apparatus just behind pharyngeal cavity, free prostatic vesicle, marginal tentacles formed by upfolding of anterior margin, centrally located sucker behind female pore (Faubel 1984) places Pseudoceros stellans sp. nov. in the family Pseudocerotidae while presence of characters such as smooth dorsal surface, single male copulatory apparatus with seminal vesicle (Fig. 4a) and armed penis papilla, pseudotentacles as simple folds of anterior margin, female pore equidistant from male pore and sucker (Faubel 1984; Newman and Cannon 1998) place this newly described species in the genus Pseudoceros. All of the above mentioned characters can be recognised in the present species from Agatti Island. The newly described species differs from all other congeners on the basis of dorsal colour and spots. Although there are some species under the genus Pseudoceros with spots (Pseudoceros astrorum Bulnes and Torres, 2014 Pseudoceros heroensis Newman and Cannon, 1994; P. josei Newman and Cannon, 1998; P. kylie Newman and Cannon, 1998; P. laingensis Newman and Cannon, 1998; P. leptostictus Bock, 1913, P. lindae Newman and Cannon, 1994; P. nigropunctatus Dixit, Raghunathan and Chandra, 2017 and P. vishnui Dixit, Raghunathan and Chandra, 2017) but the colour, size, arrangement, density and distribution of spots varies from species to species and is used for species identification. Pseudoceros josei, in terms of background colour and spots size and arrangement shows some affinity with the presently described species but it doesn’t have black marginal band. The spots turn white towards the margin (Newman and Cannon, 2005) which is opposite in case of P. stellans sp. nov. where spots turns yellow towards margin. Pseudoceros astrorum is also characterised by dark brown background with spots but it has a white marginal rim which is not present in P. stellans sp. nov. Pseudoceros kylie also possess dark brown background with cream microdots but has bright orange broken band just before the rim while the marginal band is black and continuous in P. stellans sp. nov. Other species such as P. laingensis (purple spots), P. leptostictus (small black and orange spots), P. lindae (golden yellow spots), P nigropunctatus (black spots with cream halo) and P. vishnui (purple to violet spots) possess spots with different types of colours, distribution and different type of marginal bands. Thus, in the light of above mentioned characters and comparisons, P. stellans sp. nov. is reported as a new species to science.Published as part of Dixit, Sudhanshu, Bayyana, Sharad, Manjebrayakath, Hashim, Saravanane, N. & Sudhakar, M., 2019, Polyclad fauna of Agatti Island, Lakshadweep, India: new records and description of two new species, pp. 246-260 in Zootaxa 4657 (2) on page 255, DOI: 10.11646/zootaxa.4657.2.2, http://zenodo.org/record/376911
Direct association between the Ret receptor tyrosine kinase and the Src homology 2-containing adapter protein Grb7
No full textAdapter proteins containing Src homology 2 (SH2) domains link transmembrane receptor protein-tyrosine kinases to downstream signal transducing molecules. A family of SH2 containing adapter proteins including Grb7 and Grb10 has been recently identified. We had previously shown that Grb10 associates with Ret via its SH2 domain in an activation-dependent manner (Pandey, A., Duan, H., Di Fiore, P.P., and Dixit, V.M. (1995) J. Biol, Chem. 270, 21461-21463). We now demonstrate that the related adapter molecule Grb7 also associates with Ret in vitro and in vivo, and that the binding of the SH2 domain of Grb7 to Ret is direct. This binding is dependent upon Ret autophosphorylation since Grb7 is incapable of binding a kinase-defective mutant of Ret. Thus two members of the Grb family, Grb7 and Grb10, likely relay signals emanating from Ret to other, as yet, unidentified targets within the cell
Rising to the SDGs: how can Nepal make meaningful progress by 2030?
No full textNepal has committed to achieving the UN Sustainable Development Goals but this will be no easy task. Ashutosh M Dixit outlines how collaborative approaches which acknowledge the interlinkages between the SDGs and good monitoring and evaluation will be essential to achieving meaningful outcomes within the next decade and a half
Pseudoceros vishnui Dixit, Raghunathan & Chandra, 2017, sp. nov.
No full textPseudoceros vishnui sp. nov. Figures 6–8; Table. 1 Type material: Holotype: One specimen (20 x 15 mm) as serial sections of reproductive structures (7 Slides), remainder of animal in 70% ethanol. Collected 19.03.2015, subtidally from 10 m depth, Pongibalu (Lat: 11°30.573’N, Long: 92°39.123’E), South Andaman, India (ZSI/ANRC-16841). Paratypes: One specimen (15 x 10 mm) as serial sections of reproductive structures (5 Slides), remainder of animal in 70% ethanol. Same as holotype (ZSI/ANRC-16842). One specimen (11 x 8 mm) in 70% EtOh. Collected 0 8.09.2015, subtidally from 15 m depth, Pongibalu (Lat: 11°30.573’N, Long: 92°39.123’E), South Andaman, India (ZSI/ANRC-16843). One specimen (11 x 8 mm) in 70% EtOh. Collected 15.12.2016, subtidally from 9 m depth, Rutland Island (Lat: 11°30.119’N, Long: 92°37.112’E), South Andaman, India (ZSI/ANRC-16844). Distribution. Pongibalu, South Andaman, India. Additional photographic record from Burma (Newman & Cannon, 2005). Diagnosis. Body colour cream, solid purple to violet spots all over body. Margin made up of non-continuous dark blue spots of various sizes. Etymology. This species is named after Vishnu Kumar Dixit, father of the first author, in acknowledgment of his support throughout his research on marine flatworms. Synonyms. It is likely that it corresponds to Pseudoceros sp. 38, Newman & Cannon (2005), CD-ROM and to Pseudoceros sp., Kuiter & Debelius (2009), see taxonomic remarks below. Description. Live. Body oval and smooth, margin without any ruffles. Many purple to violet coloured spots, of variable sizes, more or less circular are present all over the body (Fig. 6A, B). Blue pseudotentacles, small, formed by simple folds of the anterior margin with scattered eyespots on each pseudotentacle on either side. Cerebral eyespot cluster with 40–43 eyes (Fig. 6 C). Ventral side cream in colour. Margin made up of small blue coloured discontinuous spots of various sizes. Preserved. Holotype 15 mm long and 12 mm wide at central portion. Translucent due to loss of colour on fixation but some faint purple spots visible in paratype specimen. Dorsal epidermis very rough and uneven with thickens 45 to 55 µm and is twice the thickness of ventral epidermis which is 18–22 µm and smooth. Nucleus present at the base while rhabdites near dorsal surface. A distinct basement membrane clearly separates epithelium from underlying muscles. Distance between pharyngeal mouth and sucker is 4.53 mm. Male and female gonopores 1.03 mm apart. Pharynx small and ruffled with 7 folds. Male pore 1.93 mm from pharyngeal mouth and is situated between last pair of pharyngeal folds. Sucker 1.3 mm from female pore. Reproductive characters. Measurements refer to length in a 15 mm long worm, the holotype. Seminal vesicle (Fig. 7 A) elongate and oval (490 x 421 µm), heavily muscularized, parallel to longitudinal body axis. Prostatic vesicle (Fig. 7 A) located anterior to seminal vesicle and just above male atrium. It is slightly tapering in shape downwards (180 x 168 µm) with thickness of inner wall varying from 30 to 50 µm. Male atrium deep with many folds and stylet 197 µm long. Female atrium 188 µm long while vagina is 384 µm long tube curved towards posterior end. Well defined cement pouches with numerous cement glands present (Fig. 7 B & 8). Taxonomic remarks. The presence of this species is recorded on many occasions from Andaman Islands (Sreeraj & Raghunathan 2013; Sreeraj et al. 2015); however, no attempt had been made in the past to make a formal description. To date, only 4 species under the genus Pseudoceros are described from India: Pseudoceros gamblei Laidlaw, 1902; P. tigrinus Laidlaw, 1902; P. galatheensis Dixit et al. 2017 and P. nigropunctatus Dixit et al. 2017. The general spotted pattern of newly described species P. vishnui sp. nov. resembles with P. nigropunctatus described from same geographical area but the difference in appearance and colour of the spots on dorsal surface and background colour distinguish them from one another. In addition, P. laingensis Newman & Cannon, 1998 described from Papua New Guinea is the most resembled species to P. vishnui sp. nov. in terms of margins, background colour and spots. Both species have purple spots on dorsum but the spots in P. laingensis are smaller and more in number in comparison to P. vishnui sp. nov. with bigger and few spots. Border of P. laingensis is made up of numerous purple spots (same colour as that of spots on dorsum) of different sizes (Bolanos et al. 2016) while the border of P. vishnui sp. nov. is characterised by numerous spots of blue colour and never of same colour as of spots on dorsum. Bolanos et al (2016) mentioned that the purple dots on the dorsal surface of P. laingensis were numerous in some individuals but scarce in others while the frequency of spots in P. vishnui sp. nov. remained almost similar in all the studied individuals. There are few more species under the genus Pseudoceros with presence of spots on their body namely Pseudoceros nipponicus Kato, 1944; P. lindae Newman & Cannon, 1994 and P. scintillatus Newman & Cannon, 1994. P. nipponicus have black spots on the dorsum and a russet brown sub marginal band with a black rim while P. lindae is characterised by golden yellow spots on dorsum. In P. scintillatus the spots are very big, differently coloured, clearly outlined and touching the margin. Newman & Cannon, 2005 reported this undescribed species as Pseudoceros sp. 38 from Burma and mentioned colour of spots as red and margins to be made up of purple spots. Kuiter & Debelius (2009) also reported this species as Pseudoceros sp. from Andaman Sea based on photographic record. But the overall appearance and pattern of the species agrees to the newly described species and existence of both in same geographical area led us to assume that both can be same species. Table. 1 is provided with detailed comparisons between newly described species and similarly coloured species. TABLE. 1. Comparison of Pseudoceros vishnui sp. nov. characters with similarly coloured and patterned species.Published as part of Dixit, Sudhanshu, Raghunathan, C. & Chandra, Kailash, 2017, Two new Pseudoceros (Polycladida: Pseudocerotidae) and a Prostheceraeus (Polycladida: Euryleptidae) from Andaman and Nicobar Islands, India, pp. 495-512 in Zootaxa 4269 (4) on pages 501-503, DOI: 10.11646/zootaxa.4269.4.5, http://zenodo.org/record/58274
ICT as Technical Change in the Matching and Production Functions of a Pissarides-Dixit-Stiglitz model
No full textIn this paper we integrate two workhorse models in economics: Themonopolistic competition model of Dixit and Stiglitz and the search unemploymentmodel of Pissarides. Information and communication technology (ICT) is interpretedas i) technical progress in the matching function of the Pissarides labour marketsearch model where it is increasing the probability of filling a vacancy, and ii) astechnical change in the production function of the Dixit-Stiglitz goods market modelwhere it is increasing fixed costs and decreasing variable costs. All effects together,modelled as a permanent once-and-for-all ICT and Internet shock, increase thevacancy/ unemployment ratio, decrease the long-run equilibrium unemployment rate,and increase wages. Keywords: ICT, Monopolistic competition, unemployment.macroeconomics ;
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