14,252 research outputs found
Rhopalum Saini & Dey, 2022, s. str.
No full textKey to the species of subgenus Rhopalum s. str. Stephens from Indian subcontinent (Males of R. peterseni Tsuneki and R. gulmargense sp. nov. are unknown) 1. Female............................................................................................. 2 - Male............................................................................................... 6 2. Inter-antennal projection indistinct........................................................................ 3 - Inter-antennal projection conspicuous, prominent........................................................... 4 3. Clypeus: medial lobe truncate apically with inconspicuous lateral indentation; antennomere III not longer than wide; admedian line on scutum inconspicuous, mesopleuron smooth; hindtibia inconspicuously swollen apically.. R. croisseti Leclercq, 2011 - Clypeus: anterior margin rounded and slightly notched or broad with conspicuous lateral indentation (Fig. 4); antennomere III as long as or longer than wide; admedian line on scutum distinct; mesopleuron at least with distinct micro punctures; hindtibia different............................................................................................ 5 4. Clypeus: anterior margin minimally indented; inter-antennal tooth more or less truncate, directed downwards; punctation on mesoscutum very fine but clear and relatively dense; narrow yellow stripe on posterior surface of hindtibia, starting from base, not reaching apex; petiole moderately nodose apically.................................... R. avexum Leclercq, 1963 - Clypeus: anterior margin truncate (Fig. 181 of Tsuneki 1976); inter-antennal tooth rounded apically, directed forward (Fig. 182 of Tsuneki 1976); punctation on mesoscutum large; basal ring of hindtibia broad; petiole largely nodose apically (Fig. 184 of Tsuneki 1976)................................................................... R. peterseni Tsuneki, 1976 5. Body length: 6.4 mm; face narrow; anterior margin of clypeus rounded, slightly notched with inconspicuous lateral indentation; inner margin of compound eyes without carina; orbital fovea absent; hindtibia 3 inconspicuously swollen apically; pygidial area narrow at base..................................................................... R. adamsi Leclercq, 2011 - Body length: 7.4−7.6 mm; face broad; clypeus broad, slightly swollen medially, anterior margin dentate with conspicuous lateral indentation (Fig. 4); inner margin of compound eyes with well-defined carina (Fig. 4); orbital fovea indistinct but not absent, elliptical (Fig. 3); hindtibia markedly swollen apically (Fig. 2); pygidial area broader at base (Fig. 8)................................................................................... R. gulmargense Saini & Dey , sp. nov. 6. Antennomere VI or VII indented; clypeus free margin not tridentate; pygidial area without lateral border or with well-defined border.............................................................................................. 7 - Antennomere VI and VII not indented; clypeus free margin tridentate; pygidial area bordered laterally but not apically; length 4.2 mm......................................................................... R. croisseti Leclercq, 2011 7. Clypeus: medial lobe subtruncate; tergum VII without border laterally; length 6 mm............. R. adamsi Leclercq, 2011 - Clypeus: median lobe rounded apically; tergum VII forming flat pygidial area, with well-defined border; length 6.5 mm................................................................................... R. avexum Leclercq, 1963Published as part of Saini, Varun & Dey, Debjani, 2022, Description of Rhopalum (s. str.) gulmargense n. sp. with a key to the Indian species of the subgenus Rhopalum Stephens, 1829 s. str. (Hymenoptera: Crabronidae: Crabronini), pp. 139-144 in Zootaxa 5105 (1) on page 140, DOI: 10.11646/zootaxa.5105.1.6, http://zenodo.org/record/633249
FIGURE 2. Gastrochilus pseudocalceolaris S. Dey, L in Gastrochilus pseudocalceolaris, a new species of epiphytic orchid from India
No full textFIGURE 2. Gastrochilus pseudocalceolaris S. Dey, L. Phom, Av. Bhattacharjee, Moaakum & K. Eshuo. A. Habit; B. Flower; C. Portion of inflorescence; D. Dorsal sepal; E. Petal; F. Lateral sepal; G. Labellum, column and pedicel plus ovary; H. Labellum with portion of column and pollinarium; I. Flower; J. Labellum, column and pedicel plus ovary; K. Labellum; L. Pollinarium; M. Dehisced capsule showing seeds. [From S. Dey 1342 (Holotype and isotype); I–M: From preserved flowers taken from S. Dey 1342 before mounting]Published as part of Dey, Santanu, Phom, Limamanen, Bhattacharjee, Avishek & Eshuo, Kazhuhrii, 2022, Gastrochilus pseudocalceolaris, a new species of epiphytic orchid from India, pp. 295-300 in Phytotaxa 574 (4) on page 297, DOI: 10.11646/phytotaxa.574.4.5, http://zenodo.org/record/738910
FIGURE 1. Gastrochilus pseudocalceolaris S. Dey, L in Gastrochilus pseudocalceolaris, a new species of epiphytic orchid from India
No full textFIGURE 1. Gastrochilus pseudocalceolaris S. Dey, L. Phom, Av. Bhattacharjee, Moaakum & K. Eshuo. A–B. Photograph of plant in natural habitat; C. Habit.Published as part of Dey, Santanu, Phom, Limamanen, Bhattacharjee, Avishek & Eshuo, Kazhuhrii, 2022, Gastrochilus pseudocalceolaris, a new species of epiphytic orchid from India, pp. 295-300 in Phytotaxa 574 (4) on page 296, DOI: 10.11646/phytotaxa.574.4.5, http://zenodo.org/record/738910
Marginal likelihood calculation for gelfand-dey and Chib Method
No full textOne advantage of Bayesian estimation is its solid theoretical ground on model comparison, which relies heavily upon the accurate calculation of marginal likelihood. The Gelfand-Dey (1994) and Chib (1995) methods are two popular means of calculating marginal likelihood. A trade-off exists between these two methods. The Gelfand-Dey method is simpler and faster to conduct, while Chib method is more accurate, yet intricate. In this paper, we compare the two methods by their ability to identify structural breaks in a reduced form volatility model. Using the Markov Chain Monte Carlo method, we demonstrate that the performance of the two methods is fairly close. Since the Chib method is normally more di±cult to implement in many econometric problems, it is safe to choose Gelfand-Dey method when calculating marginal likelihood.Model Comparison; Structural Break; Heterogeneous Autoregressive Model; Bayesain Estimation
Dey, A A, 416001
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/381691Surname: DEY. Given Name(s) or Initials: A A. Military Service Number or Last Known Location: 416001. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 47568.197757
Item: [2016.0049.13984] "Dey, A A, 416001
Energy management in 21st century: an inquiry into the mounting corporate hegemony over basic human necessities and the role of civil society as a countervailing force.
No full textIn 21st century, as energy and food supplies are increasingly becoming dependent on each other, any strategy to manage these two basic human needs should be formulated collectively –not in isolation. The ‘green revolution’ of 1950s paved the way for ascertaining corporate control on food and water. Through the enactment and subsequent ratification of Kyoto Protocol, the corporate hegemony on air and energy has been established firmly. During last hundred and fifty odd years, a symbiotic relationship between the state and large corporations was developed. The transnational corporations are trying to break away from such dependence on state and emerge as the dominant force to control and manage the global market. This study tries to explain the consequences of this changing relation between the ‘state’ and ‘corporations’ on the food and energy needs of the citizens. It also analyses various issues pertaining to the energy supplies during the next few decades of the 21st century. The paper concludes that in future, the civil society organizations (CSOs) will play an important role in steering the course of society especially in the allocation and distribution of basic human necessities like food and energy.Electricity retailing; food retailing, renewable energy; decentralized generation; civil society; multilateral organization; small and micro enterprise (sme), SMEs
Heavy-tails in Kalman filtering with packet losses: Confidence bounds vs second moment stability
No full textIn this paper, we study the existence of a steady state
distribution and its tail behaviour for the estimation error arising
from Kalman filtering for unstable scalar systems. Although a
large body of literature has studied the problem of Kalman
filtering with packet losses in terms of analysis of the second
moment, no study has addressed the actual distribution of the
estimation error. By drawing results from Renewal Theory, in
this work we show that under the assumption that packet loss
probability is smaller than unity, and the system is on average
contractive, a stationary distribution always exists and is heavytailed, i.e. its absolute moments beyond a certain order do not
exist. We also show that under additional technical assumptions,
the steady state distribution of the Kalman prediction error has
an asymptotic power-law tail, i.e. P[|e| > s] ∼ s
−α
, as s → ∞,
where α can be explicitly computed. We further explore how to
optimally select the sampling period assuming exponential decay
of packet loss probability with respect to the sampling period. In
order to minimize the expected value of second moment or the
confidence bounds, we illustrate that in general a larger sampling
period will need to be chosen in the latter case as a result of the
heavy tail behaviour
Dey, P A, 402853
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/381690Surname: DEY. Given Name(s) or Initials: P A. Military Service Number or Last Known Location: 402853. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 57299.197756
Item: [2016.0049.13983] "Dey, P A, 402853
Recommendation domains for pond aquaculture: country case study: development and status of freshwater aquaculture in Bangladesh
No full textThis report is an output of the project ôDetermination of high-potential aquaculture development areas and impact in Africa and Asiaö. This monograph is the case study for Bangladesh. Written in three parts, it describes the historical background, practices, stakeholder profiles, production levels, economic and institutional environment, policy issues, and prospects for aquaculture in the country. First, it documents the history and current status of the aquaculture in the country. Second, it assesses the technologies and approaches that either succeeded or failed to foster aquaculture development and discusses why. Third, it identifies the key reasons for aquaculture adoption.Freshwater aquaculture, Economic analysis, Trade, Ecosystems, Pond culture, Fish consumption, Food security, Policies, Regulations, Legislation, Socioeconomic aspects, Yield, Bangladesh,
Giving a F*ck: For a Better World: A book about building a better world through awareness & adoption of technology
No full text- …
