On the accuracy attainable in the MK system

1966 ◽  
Vol 24 ◽  
pp. 6-12
Author(s):  
C. Jaschek ◽  
M. Jaschek
Keyword(s):  
Line Profile ◽  
Additional Data ◽  
Single Source ◽  
Spectral Classification ◽  
Polarization Rotation ◽  
Profile Data ◽  
La Plata ◽  
Knowing That ◽  
Made In ◽  
Quick Search

Recently we have finished at La Plata a catalogue containing all spectral classifications made in the MK system (1), prior to 1963·0. The original idea was to give a definite spectral classification for each object, but it was soon found out that this is impossible, since there is a relatively large number of stars for which the classifications given by different observers disagree. Therefore it was decided to include all published classifications, even knowing that in a number of cases the several classifications listed were taken from a single source. Some objects have therefore a long list of references, not necessarily independent. Incidentally these references permit a quick search for additional data on the star such as colour, polarization, rotation or line profile data. The catalogue lists a total of about 550 references. Whenever possible we have also listed, for each paper, the type of spectrograph and the dispersion used for the classification work. It is intended to keep the files up to date, issuing, if necessary, a second edition of the catalogue.

scholarly journals Challenges for theories of consciousness: seeing or knowing, the missing ingredient and how to deal with panpsychism

2018 ◽  
Vol 373 (1755) ◽  
pp. 20170344 ◽  
Author(s):  
Victor A. F. Lamme
Keyword(s):  
Conscious Experience ◽  
Complex Phenomenon ◽  
Significant Progress ◽  
Theme Issue ◽  
Perceptual Consciousness ◽  
Knowing That ◽  
Cognitive Access ◽  
Visual Consciousness ◽  
New Challenges ◽  
Made In

Significant progress has been made in the study of consciousness. Promising theories have been developed and a wealth of experimental data has been generated, both guiding us towards a better understanding of this complex phenomenon. However, new challenges have surfaced. Is visual consciousness about the seeing or the knowing that you see? Controversy about whether the conscious experience is better explained by theories that focus on phenomenal (P-consciousness) or cognitive aspects (A-consciousness) remains, and the debate seems to reach a stalemate. Can we ever resolve this? A further challenge is that many theories of consciousness seem to endorse high degrees of panpsychism—the notion that all beings or even lifeless objects have conscious experience. Should we accept this, or does it imply that these theories require further ingredients that would put a lower bound on beings or devices that have conscious experience? If so, what could these ‘missing ingredients’ be? These challenges are discussed, and potential solutions are offered. This article is part of the theme issue ‘Perceptual consciousness and cognitive access’.

Redescription of the monotypic genus Cubacanthozomus (Schizomida: Hubbardiidae) and conservation status of its type-species

Zootaxa ◽  
2017 ◽  
Vol 4323 (4) ◽  
pp. 534 ◽  
Author(s):  
LUIS F. DE ARMAS ◽  
RENÉ BARBA DÍAZ ◽  
AYLÍN ALEGRE BARROSO
Keyword(s):  
Natural History ◽  
Type Species ◽  
New Genus ◽  
Additional Data ◽  
Conservation Status ◽  
Original Description ◽  
Morphological Evidence ◽  
Monotypic Genus ◽  
True Type ◽  
Made In

Some of the taxonomic characters originally argued for the Cuban monotypic genus Cubacanthozomus Teruel, 2007, are unsubstantial. Others were misinterpretations of drawings given in the original description of Schizomus rowlandi Dumitresco, 1973, the only source of taxonomic information on which Teruel (2007) based the new genus. Recently a new collection of this species was made in a small cave about 350 m from one of the caves mentioned in the original description: Cueva de Majana, Baracoa municipality, Guantánamo province. On the basis of new morphological evidence found during examination of two females and a male, both the genus Cubacanthozomus and its type-species are herein redescribed. Cueva de Majana is recognized as the true type locality of C. rowlandi, which male holotype was erroneously listed as being collected in a cave from central Cuba, 600 km away. Additional data are provided on the morphology, natural history and conservation status of C. rowlandi, which is now being proposed as an endangered species. 

scholarly journals Ukraińcy o własnych błędach w polszczyźnie. Przykład statystycznej analizy danych w glottodydaktycznych badaniach eksploracyjnych

2018 ◽  
Vol 8 (2) ◽  
pp. 237-253
Author(s):  
Dominika Izdebska-Długosz
Keyword(s):  
Statistical Analysis ◽  
Foreign Language ◽  
Survey Research ◽  
Additional Data ◽  
Native Speakers ◽  
Made In ◽  
Research Tools

In the article the results of survey research on the assessment of errors made in Polish by Ukrainians and Poles, as stated by Ukrainian students learning Polish as a foreign language, are shown. This research was a part of twofold research in which students from Poland participated as well, assessing the character and importance of linguistic errors made by foreigners and native speakers of Polish. At first. the results were shown by means of traditionally counting up the number of particular responses. Nonetheless, the information about how much and what kind of additional data could be gained thanks to elements of statistical analysis of data conducted on the same survey is shown in this paper. The results may convince one that statistical analysis of pilot or exploratory nature is worth conducting even with a small research sample, as it allows for highlighting particular problems which should be taken into account while preparing research tools for proper research.

Dynamic choice

2020 ◽  
pp. 133-148
Author(s):  
David M. Kreps
Keyword(s):  
Standard Approach ◽  
Dynamic Choice ◽  
Knowing That ◽  
Dynamic Strategy ◽  
Optimal Dynamic ◽  
Made In

This chapter investigates the issue of dynamic choice. Many important choices made in economic contexts are made through time. The consumer takes some action today, knowing that subsequent choices will be required tomorrow and the day following and so on. And today's choice has impact on either how the consumer views later choices or what choices will later be available or both. This can be referred to as a situation of dynamic choice. The chapter discusses how economists model the process of dynamic choice. In microeconomics, the issue of dynamic choice is usually dealt with by reducing dynamic choice to the static choice of an optimal dynamic strategy which is then carried out. The chapter examines this standard approach before considering a pair of alternatives.

D-21 Bayesian Characterisation of Nanocrystallites from Line Profile Data

2004 ◽  
Vol 19 (2) ◽  
pp. 201-201
Author(s):  
N. Armstrong ◽  
W. Kalceff ◽  
A. R. Dowd ◽  
J. P. Cline
Keyword(s):  
Line Profile ◽  
Profile Data

scholarly journals New Record of Mozambique Scorpionfish, Parascorpaena mossambica (Peters, 1855), (Actinopterygii: Order, Scorpaeniformes; Family: Scorpaendiae) From Indian Waters

2017 ◽  
Vol 22 (3) ◽  
pp. 105
Author(s):  
Muddula Krishna Naranji ◽  
Govinda Rao Velamala ◽  
Kandula Sujatha
Keyword(s):  
Lateral Line ◽  
Coastal Waters ◽  
Rare Species ◽  
Additional Data ◽  
New Records ◽  
Dorsal Margin ◽  
Dorsal Fin ◽  
Indian Waters ◽  
Transverse Scale ◽  
Made In

Parascorpaena mossambica is one of the rare species of Scorpaenidae in the Visakhapatnam coastal waters, India. Ten specimens are characterized by Dorsal fin IX 9; Anal fin III 5-6; Pectoral fin rays 15; Lateral line scales 43-44; Lateral line Pored scales 23-24; Lateral transverse scale scales 6-7/1/12-14; lachrymal bone with two lower strong antrose spines, anterior pointed and directed forward, tip reaching dorsal margin of upper lip, covered with skin; posterior one directed forward and slightly downward; suborbital with three spines. Only few records have been made in the whole Indian waters. Due to its rarity, P. mossambica is poorly studied and little known about their biology, ecology and distribution. In the present study provides additional data on this rare species. In particular, we describe its habitat, ecology, presence and distribution with several new records in Indian waters. Keywords: Scorpaenidae, fish, Parascorpaena mossambica, Visakhapatnam

scholarly journals High Quality Echelle Observations of T Tauri Stars

1988 ◽  
Vol 132 ◽  
pp. 99-104
Author(s):  
G. Basri
Keyword(s):  
High Resolution ◽  
Line Profile ◽  
T Tauri Stars ◽  
Young Stars ◽  
Emission Lines ◽  
Current Understanding ◽  
General Nature ◽  
High Quality ◽  
T Tauri ◽  
Made In

This is a very brief review of the high resolution line profile work that has been done on very young stars. The spectral anamolies peculiar to these stars are mentioned, with some discussion of what may give rise to them. The Hα line is discussed most extensively, as the most work has been done with it. While progress has been made in understanding the general nature of T Tauri spectra, there are very large gaps in our current understanding of the emission lines from these stars.

scholarly journals Use of Expert Systems to identify the right strategy to be used in organizations

2019 ◽  
Vol 7 (4) ◽  
pp. 18-20
Author(s):  
Arunava Ghosh
Keyword(s):  
Knowledge Management ◽  
Expert Systems ◽  
Competitive Advantage ◽  
Knowledge Management System ◽  
Knowledge Based Systems ◽  
Single Source ◽  
Knowledge Database ◽  
Knowledge Based ◽  
The Right ◽  
Made In

Expert systems are computer systems that help the computers to make decisions based on a pre-requisite knowledge database. For a competitive advantage, marketing plays an important role. Environment changes needs to be monitored and necessary changes are to be made in an organization. An efficient knowledge management system is required to acquire, store and retrieve the knowledge when needed (Moradi et al., 2013). When these systems acquire knowledge from several sources rather than from a single source, such systems are knowledge-based systems (Luconi et al., 1986).

Avances en el uso de simulaciones computacionales para comprender mejor los efectos biomecánicos del glaucoma

2021 ◽  
Author(s):  
◽  
L. M. Rosales Medina
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Intraocular Pressure ◽  
Review Article ◽  
The Finite Element Method ◽  
Computational Simulations ◽  
Knowing That ◽  
Biomechanical Changes ◽  
Main Effects ◽  
Made In

The use of computational simulations using the finite element method is a useful tool to observe the effects that intraocular pressure causes on some structures of the eye. Both, the simulations that focus on analyzing the anterior and posterior poles provide data about changes that occur having certain pressure values. Even knowing that the main effects of primary angle glaucoma are palpable in the optic nerve, the usefulness of the results obtained from simulations that focus on studying the cornea or other structures is not ruled out, since these are structures affected since that is where it originates in a glaucoma disease beginning. This review article tries to cover some of the articles focused on computational simulations of the eye and its biomechanical changes due to glaucoma in recent years, as well as to review the considerations that were made in each one to arrive at their respective results.

Use of Fabry-Perot annular summing spectroscopy to acquire geocoronal hydrogen Balmer-α line profile data

1996 ◽  
Author(s):  
Susan M. Nossal ◽  
Fred L. Roesler ◽  
Monica M. Coakley ◽  
Ronald J. Reynolds
Keyword(s):  
Line Profile ◽  
Profile Data ◽  
Fabry Perot
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