Results 11 to 20 of about 34,455 (262)

What does external morphometry tell us about stock discrimination of Sardina pilchardus stocks from Türkiye?

open access: yesOceanological and Hydrobiological Studies
The analysis of shape is a fundamental part of much biological research. Morphometrics, which incorporates concepts from biology, geometry, and statistics, is the study of the geometrical form of organisms.
Ozpicak Melek, Saygin Semra
doaj   +2 more sources

Diagnosing Discrimination: Stock Returns and CEO Gender [PDF]

open access: yesSSRN Electronic Journal, 2006
A vast labor literature has found evidence of a “glass ceiling,” whereby women are under-represented among senior management. A key question remains the extent to which this reflects unobserved differences in productivity, preferences, prejudice, or systematically biased beliefs about the ability of female managers.
openaire   +3 more sources

Otolith shape discrimination of Liza ramada (Actinopterygii: Mugiliformes: Mugilidae) from marine and estuarine populations in Tunisia [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2017
Background. The thinlip grey mullet, Liza ramada (Risso, 1810), is widespread in Tunisia. Despite its economic importance, the stock discrimination of this fish is poorly understood.
M. Rebaya   +9 more
doaj   +3 more sources

Stock discrimination of Sperata aor from river Ganga using microsatellite markers: implications for conservation and management

open access: yesAquatic Living Resources, 2017
High genetic variation is an important requirement for long term survival of wild populations through adaptations to changing environmental conditions. High levels of variability and the potential to isolate large number of loci make microsatellites the ...
Nazir Aafaq, Khan Mohammad Afzal
doaj   +1 more source

Stock discrimination of Etroplus suratensis (Bloch) along the South Indian coast by morphometric analysis

open access: yesFisheries & Aquatic Life, 2022
The objective of the present study was to analyze the morphometric and meristic variations of an estuarine fish, Etroplus suratensis, in five locations along the South Indian coastal region.
Chandrasekar Shanmugam   +2 more
doaj   +1 more source

Shape and symmetry in the otolith of two different species Mullus barbatus and Mullus surmuletus (Actinopterygii: Perciformes: Mullidae) in Tunisian waters [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2020
Background. In Tunisian waters, there are only two mullet species, the red mullet, Mullus barbatus Linnaeus, 1758, and the striped red mullet, Mullus surmuletus Linnaeus, 1758.
W. Bakkari   +5 more
doaj   +3 more sources

Chemical composition of biotite in the Gowd-e-Howz (Siah-Kuh) granitoid stock, Baft, Kerman: Evidence for tectonic setting and physicochemical conditions of magma emplacement and crystallization [PDF]

open access: yesعلوم زمین خوارزمی, 2023
The Early Jurassic (≈180 Ma) Gowd-e-Howz (Siah-Kuh) granitoid stock is located in the southern part of the Sanandaj-Sirjan metamorphic belt, southeast of Iran in Kerman Province.
Mahbubeh arabzadeh bani asadi   +4 more
doaj  

Stock Price Prediction Based on Natural Language Processing1

open access: yesComplexity, 2022
The keywords used in traditional stock price prediction are mainly based on literature and experience. This study designs a new text mining method for keywords augmentation based on natural language processing models including Bidirectional Encoder ...
Xiaobin Tang   +3 more
doaj   +1 more source

Fuzzy cross-entropy, mean, variance, skewness models for portfolio selection

open access: yesJournal of King Saud University: Computer and Information Sciences, 2014
In this paper, fuzzy stock portfolio selection models that maximize mean and skewness as well as minimize portfolio variance and cross-entropy are proposed. Because returns are typically asymmetric, in addition to typical mean and variance considerations,
Rupak Bhattacharyya   +2 more
doaj   +1 more source

Otolith morphometrics distinguish difficult species of rockfishes in the Gulf of Alaska

open access: yesFrontiers in Marine Science, 2015
The oceans around Alaska are home to at least 40 species of rockfishes (Sebastidae). A number of these species are commercially important and are subject to strict catch limitations.
Jeremy P Harris
doaj   +1 more source

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