1,766,899 research outputs found
Castianeira bengalensis Biswas
No full text<p>96. <i>Castianeira bengalensis</i> Biswas</p> <p>1984. <i>Castianeira bengalensis</i> Biswas, <i>Bull.</i> zool. <i>Surv. India,</i> 6(1 -3): 120.</p> <p> <i>Material examined</i>: 3 (F), Zoo-Gardcn, Alipore, Calcutta, West Bengal, 12.iii. 1984, coll. Bijan Biswas.</p> <p> <i>Distribution</i>: India: West Bengal (Dist. Calcutta.)</p>Published as part of <i>Biswas, B. & Biswas, K, 1992, Fauna of West Bengal- Araneae: Spiders- Subfamily Corinnidae, pp. 422-428 in Fauna of West Bengal Part 3 (Arachnida and acari), Calcutta, India :Zoological Survey of India</i> on page 424, DOI: <a href="http://zenodo.org/record/892221">10.5281/zenodo.892221</a>
Sphingius paltaensis Biswas & Biswas, 1992, sp. nov.
No full text103. Sphingius paltaensis sp. nov. (Figs. 36-38) General: Cephalothorax greenish brown, legs uniformly light coloured, abdomen somewhat darker than carapace. Total length 7.90 mm. Carapace 3.30 mm. long. 2.50 mm. wde; abdomen 4.20 mm. long, 2.50 mm. wide. Cephalothorax: Longer than wide, narrow anteriorly and broad posteriorly covered with fine pubescence. Cephalic-shcild prominent without central fovea at the middle. Eyes in two parallel series anterior and posterior, more or less same size. Ocular quadrate approximately squire. Chelicerae strong and stout, longer than broad, inner and outer margin provided with two teeth. Maxillae and libium more longer than wide. Sternum heart-shaped covered with fine pubescence. Legs long partly black and partly compressed. The tibiae and metatarsi of all legs provided with a number of long spine-like hair. Abdomen: Longer than wide, more or less oval in shape; abdominal sheild prominent with golden pile. Two pair of sigillae present on the dorsum. Abdomen without white patches. Epigyne with elongated plate, provided with copulatory opening. Holotype: Female in spirit, deposited at Zoological Survey of India, Calcutta, Regd. No. 5046/18. Type locality: Palta, Santinagar, Dist. North 24-Parganas, West Bengal, India, 8.xii. 1986, coll. Bijan Biswas. This species resembles to Sphingius caniceps Simon but differs from that due to the following particulars: i) The anterior and posterior rows of eyes more or less in parallel series where as in S. caniceps anterior and posteior rows are not in parallel series, ii) The dorsum not provided with white patches where as in S. caniceps provided with while patches, iii) Epigyne and internal genitalia arc also structurally differentPublished as part of Biswas, B. & Biswas, K, 1992, Fauna of West Bengal- Araneae: Spiders- Subfamily Corinnidae, pp. 422-428 in Fauna of West Bengal Part 3 (Arachnida and acari), Calcutta, India :Zoological Survey of India on pages 426-427, DOI: 10.5281/zenodo.89222
A mathematical model for ascertaining same ciphertext generated from distinct plaintext in Michael O. Rabin Cryptosystem
No full textI am Md Shamim Hossain Biswas
In conversation : Asit K. Biswas and Murad J. Bino
No full textFrench version available in IDRC Digital Library: Tête-à-tête avec Asit K. Biswas et Murad J. Bin
Environmental toxicity, redox signaling and lung inflammation:the role of glutathione
No full textGlutathione (gamma-glutamyl-cysteinyl-glycine, GSH) is the most abundant intracellular antioxidant thiol and is central to redox defense during oxidative stress. GSH metabolism is tightly regulated and has been implicated in redox signaling and also in protection against environmental oxidant-mediated injury. Changes in the ratio of the reduced and disulfide form (GSH/GSSG) can affect signaling pathways that participate in a broad array of physiological responses from cell proliferation, autophagy and apoptosis to gene expression that involve H(2)O(2) as a second messenger. Oxidative stress due to oxidant/antioxidant imbalance and also due to environmental oxidants is an important component during inflammation and respiratory diseases such as chronic obstructive pulmonary disease, idiopathic pulmonary fibrosis, acute respiratory distress syndrome, and asthma. It is known to activate multiple stress kinase pathways and redox-sensitive transcription factors such as Nrf2, NF-kappaB and AP-1, which differentially regulate the genes for pro-inflammatory cytokines as well as the protective antioxidant genes. Understanding the regulatory mechanisms for the induction of antioxidants, such as GSH, versus pro-inflammatory mediators at sites of oxidant-directed injuries may allow for the development of novel therapies which will allow pharmacological manipulation of GSH synthesis during inflammation and oxidative injury. This article features the current knowledge about the role of GSH in redox signaling, GSH biosynthesis and particularly the regulation of transcription factor Nrf2 by GSH and downstream signaling during oxidative stress and inflammation in various pulmonary diseases. We also discussed the current therapeutic clinical trials using GSH and other thiol compounds, such as N-acetyl-l-cysteine, fudosteine, carbocysteine, erdosteine in environment-induced airways disease
Open Education Week 2016 Keynote: Dr. Robert Biswas-Diener
No full textIn this presentation, Dr. Robert Biswas-Diener outlines the key points of the open education philosophy. He addresses common criticisms of open education and presents case studies to support his assertions. In particular, he discusses Noba, an open educational resource for psychology instruction
Tête-à-tête avec Asit K. Biswas et Murad J. Bino
No full textVersion anglaise disponible dans la Bibliothèque numérique du CRDI: In conversation : Asit K. Biswas and Murad J. Bin
Sphingius paltaensis Biswas & Biswas 1992
No full textSphingius paltaensis Biswas & Biswas, 1992 Fig. 7 Sphingius paltaensis Biswas & Biswas, 1992: 426, figs 36–38. Type material. Holotype ♀ from INDIA: West Bengal: North 24 Parganas: Palta: Santi Nagar (22°46’57.51’’N, 88°22’50.46’’E), 12 m a.s.l., leg. Bijan Biswas, 8 December 1986, deposited in NZC-ZSI (5046/18), examined (Fig. 7E). Diagnosis. Females of S. paltaensis are closely related to the females of S. spinosus Dankittipakul, Tavano & Singtripop, 2011, but can be separated by circular atrium (quadrangular in S. spinosus) and sharply curved copulatory ducts (gently curved in S. spinosus) (compare Fig. 7 C–D with Dankittipakul et al. 2011: figs 25–26). Supplementary description. Female (Fig. 7 A–B). Body length 6.46. Carapace length 2.76, width 2.30. Opisthosoma length 3.70, width 2.00. Eye diameters: ALE 0.14. AME 0.10. PLE 0.11. PME 0.15. Eye interdistances: ALE–PLE 0.07. AME–ALE 0.04. AME–AME 0.06. AME–PME 0.08. PME–PLE 0.06. PME–PME 0.07. Chelicerae length 0.96. Clypeus height at ALEs 0.07, at AMEs 0.13. Measurements of palp and legs. Palp 3.00 [0.93, 0.58, 0.59, 0.90], I 8.38 [2.38, 1.23, 1.90, 1.48, 1.39], II 6.52 [1.72, 0.87, 1.39, 1.36, 1.18], III 6.17 [1.66, 0.93, 1.18, 1.39, 1.01], IV 9.17 [2.74, 1.19, 1.96, 2.41, 0.87]. Leg formula: 4123. Genitalia (Fig. 7 C–D, F): epigynal plate moderately sclerotized. Atrium large, nearly circular, with wide anterior hood (Fig. 7C). Copulatory openings situated on postero-lateral margin of epigynal atrium. Copulatory ducts short, curving medially (Fig. 7D). Bursae globular, with indistinct stalks, arising on distal part of copulatory ducts (Fig. 7D). Spermathecae large, more or less pear-shaped, lying parallel to each other (Fig. 7D). Fertilization ducts more or less linear-shaped, directed mesally towards each other (Fig. 7D). Male. Unknown. Remarks. The ZSI collection has one glass bottle for this species labelled as ‘holotype’ (5046/18) containing a female specimen with broken legs, otherwise in good condition. The same bottle has a small glass vial containing the dissected genitalia. There is an inconsistency in the registration number of this species; the label mentions it as ‘5406/18’, but in the original literature, it is given as ‘5046/18’.Published as part of Sankaran, Pradeep M., Caleb, John T. D. & Sebastian, Pothalil A., 2020, A review of the genus Sphingius Thorell, 1890 from India (Araneae: Liocranidae), pp. 505-522 in Zootaxa 4896 (4) on pages 514-515, DOI: 10.11646/zootaxa.4896.4.3, http://zenodo.org/record/438767
Misumenoides naginae Biswas & Roy 2008, sp. novo
No full text3. Misumenoides naginae sp. novo (Figs. 7-9) General: Cephalothorax brownish yellow, legs yellowish brown, abdomen creamy in colour. Total length 8.50 mm. Carapace 3.00 mm. long, 2.50 mm. wide; abdomen 6.00 mm. long, 5.00 mm. wide. Cephalothorax: Cephalothorax slightly longer than wide, scanty hair present. C~phalic region slightly high. Eyes are round, black, both rows recurved. Posterior row of eyes are strongly recurved than the anterior row. Eyes are ringed with white tubercle. Anterior and posterior lateral eyes are situated on prominent white tubercles. Ocular quad wide than long. Clypeus high, margin provided with seven spines directed forwardly. Posterior median region of cephalothorax is slightly yellowish in colour and slightly high than the laterals. Presance of number of "red-dots" with hair on cephalic region. Sternum heart-shaped, pointed behind with fine hair. Legs are long and stout. Legs formulae are 2134. Tibiae of I and 11 with six pairs of spine-like projections and metatarsus with seven pairs of ventral spines. Abdomen: Round, sac-like in appearance. Dorsum of the abdomen ornamented with number of red-dots having spiny projections from it. Posterior end of abdomen slightly pointed than the anterior. Middle part of ventral side of abdomen with chalk-white dots. Epigyne with characteristic features. Type species: Holotype female preserved in rectified spirit (70%). Registration number is 5586/18. Type-locality: Haridwar, Garwall Hills, Uttaranchal, India, 26.x.2003, coIl. Bijan Biswas. Distribution: India: Haridwar, Uttaranchal. Remarks: Misumenoides naginae Sp. novo is closely related to Misumenoides shulIi Tikader but it can be distinguished from it as follows (1) Ocular area with deep brown patch present on Misumenoides shulli Tikader but there is no such Misumenoides naginae Sp. novo (2) Posteromedian of cephalothorax yellowish in colour in Misumenoides naginae Sp. novo but in Misumenoides shulli Tikader there is no such colour. (3) Epigyne and internal genitalia are also structurally different.Published as part of Biswas, Bijan & Roy, Rakhi, 2008, Description Of Six New Species Of Spiders Of The Genera Lathys (Family: Dictynidae), Marpissa (Family: Salticidae), Misumenoides (Family: Thomisidae), Agroeca (Family: Clubionidae), Gnaphosa (Family: Gnaphosidae) And Flanona (Family: Lycosidae) - From India, pp. 43-57 in Records of the Zoological Survey of India 108 (1) on pages 48-50, DOI: 10.5281/zenodo.55608
A pastoral for Mr. Biswas
No full textThe opening chapter of V. S. Naipaul's A House for Mr. Biswas is entitled "Pastoral", but the word itself never appears in the novel. This is especially odd because all of the other chapter titles are grounded within the text as either geographic or temporal designations. "Pastoral" stands out for its absence, and this article reads A House for Mr. Biswas through the lens of the missing pastoral. While many works treat Naipaul's use of landscape, this essay looks at the pastoral as a literary form and also, in Naipaul's view, as a representative metaphor for the British literary tradition. While Biswas is saturated with pastoral imagery, the pastoral is impossible in the colonial society Naipaul depicts. It is only by escaping the temptations of the pastoral, both for Mr. Biswas and also for Naipaul, that meaningful experience can be achieved
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