scholarly journals Electrophoretic Resolution of Species Boundaries in Australian Microchiroptera. III. The Nycticeiini?Scotorepens and Scoteanax (Chiroptera : Vespertilionidae)

1987 ◽  
Vol 40 (4) ◽  
pp. 417 ◽  
Author(s):  
PR Baverstock ◽  
M Adams ◽  
T Reardon ◽  
CHS Watts
Keyword(s):  
Detailed Analysis ◽  
Genetic Data ◽  
Species Boundaries ◽  
High Level ◽  
Electrophoretic Resolution

Two hundred and sixty two specimens of bats of the tribe Nycticeiini were sampled from throughout Australia, and their tissues subjected to aliozyme electrophoresis with a view towards delineating species boundaries. A total of 30 loci were resolved, detailed analysis of which revealed five species - greyii, sanborni, balstoni, orion and rueppellii. The specific boundaries recognized differ from ali previous treatments of Australian members, but are supported by the taxonomic arrangement proposed by Kitchener and Caputi (1985). The data also support separate generic recognition of rueppe/lii. Finally, the genetic data reveal a high level of population sub structuring in these bats.

scholarly journals Cryptocurrency: Adoption efforts and security challenges in different countries

2019 ◽  
Vol 10 (2) ◽  
pp. 167-186
Author(s):  
Suhag Pandya ◽  
Murugan Mittapalli ◽  
Sri Vallabha Teja Gulla ◽  
Ori Landau
Keyword(s):  
Detailed Analysis ◽  
Research Paper ◽  
Finance System ◽  
Monetary System ◽  
Holistic Review ◽  
Security Challenges ◽  
The Future ◽  
Security Concerns ◽  
High Level

Abstract This research paper is a holistic review done on the rise of Blockchain and cryptocurrency, then elaborate about the great advantages of having a decentralized finance system. The existing scenarios from a sample of countries were reviewed in regards to their effort to adopt cryptocurrency to find some of the challenges like what are the security challenges this new monetary system faces, and limitations faced by different countries. A detailed analysis was done to answer some of the vital questions as such why cryptocurrency is banned in a few countries when other countries see cryptocurrency as a secured mode of payment transaction or what kind of security is provided by cryptocurrency compared to the traditional payments such as pay by cash, credit, or checks. Lastly, this paper also summarizes a high-level overview to propose recommended solutions to overcome the security concerns associated with the adoption of cryptocurrencies and how does the future of cryptocurrency look.

scholarly journals Growth of Food Security of the Southern Federal District

2020 ◽  
pp. 148-157
Author(s):  
Matvey Oborin
Keyword(s):  
Food Security ◽  
Detailed Analysis ◽  
Agricultural Production ◽  
Innovation Process ◽  
Federal District ◽  
Sustainable Growth ◽  
Government Support ◽  
Industrial Complex ◽  
Industrial Enterprises ◽  
High Level

The purpose of this article is to identify the ways to improve food security in the Southern Federal District. Food security of the country is provided by regions that have a high potential for sustainable growth in quantitative and qualitative indicators of agricultural production, formation of sustainable forms of regional and interstate strategic cooperation on a mutually beneficial basis. The scientific and theoretical foundations of food security in papers of domestic and foreign scientists are analyzed, and the features of strategic directions for the achievement of self-sufficiency in basic food products are determined. The difference in approaches and specific features of the social and economic development of Russia and the natural and climatic potential that influences the formation of agricultural specialization are determined. The study uses general logical research methods, the systematic and situational approach, the analysis of agricultural statistics of the Southern Federal District. The article provides a detailed analysis of indicators of agricultural production in the regions of the Southern Federal District, identifies trends and directions of the development of the crop and livestock industries. The article provides a detailed analysis of the indicators of agricultural production in the regions of the Southern Federal District, identifies trends and directions in the development of the crop and livestock industries. The features of the leading districts that should become the basis of the agricultural strategy in the long term period are revealed. A system of measures that contribute to the improvement of food security in the Southern Federal District has been identified and the methods for their solution have been suggested. The main measure is government support, subsidizing and stimulation of the innovation process. The re-equipment of specialized industrial enterprises should be carried out at a high pace in the conditions of agri-food clusters and network interaction. The analysis of agricultural indicators of the district allows us to draw conclusions about the sufficient level of food security in several regions of the Southern Federal District which have high indicators of quantitative production and ensure a high level of consumption within the region, as well as allow increasing the export of certain product categories. Further development of scientific research in this area should be associated with the formation of areas for project financing of the agro-industrial complex and agriculture in the field of technological modernization, personnel policy, the acquisition of new management and production competencies, and the strengthening of the scientific potential of the crop and livestock industries.

scholarly journals Electrophoretic Resolution of Species Boundaries in Australian Microchiroptera. IV. The Molossidae (Chiroptera)

1988 ◽  
Vol 41 (3) ◽  
pp. 315 ◽  
Author(s):  
M Adams ◽  
TR Reardon ◽  
PR Baverstock ◽  
CHS Watts
Keyword(s):  
Species Level ◽  
Species Boundaries ◽  
Allozyme Electrophoresis ◽  
Single Specimen ◽  
Data Support ◽  
Electrophoretic Data ◽  
Current Species ◽  
Electrophoretic Resolution

Allozyme electrophoresis of 35 loci in 156 specimens of Australian bats belonging to the Molossidae was used to help elucidate the species-level taxonomy of the group in Australia. The electrophoretic data support the current species-level taxonomy of Tadarida australis and Chaerephon jobensis. However, for specimens currently allocated to the genus Mormopterus, the electrophoretic data fail to support any previous species-level account. On the electrophoretic data, a minimum of five species of the genus Mormopterus occur in Australia. A single specimen of a sixth species, whose generic affinities are undetermined, was also found.

scholarly journals Revisiting the past − novel insight into intraspecific molecular diversity and phylogeny of widespread Echinogammarus berilloni

2020 ◽  
pp. 46
Author(s):  
Kamil Hupało
Keyword(s):  
Molecular Diversity ◽  
Model Organism ◽  
Genetic Data ◽  
Intraspecific Diversity ◽  
Future Studies ◽  
Genetic Lineages ◽  
The Past ◽  
High Level ◽  
Taxonomic Studies ◽  
Insight Into

Echinogammarus berilloni (Catta, 1878) is a widespread and euryecious species, inhabiting large parts of Southwestern Europe. Additionally, it is recognized as one of the non-native and invasive species, increasing its range to Central Europe. Even though it is widely used as a model organism in a variety of ecological and ecotoxicological studies, its intraspecific molecular diversity has been overlooked. In this study, the publicly available genetic data reveal high level of intraspecific diversity, supporting presence of up to four phylogenetically distinct genetic lineages. Furthermore, the results indicate that the taxon is not monophyletic. The importance of considering its intraspecific diversity is discussed, highlighting the potential implications for future studies as well as the need for further detailed taxonomic studies.

scholarly journals Radial velocity confirmation of K2-100b: a young, highly irradiated, and low-density transiting hot Neptune

2019 ◽  
Vol 490 (1) ◽  
pp. 698-708 ◽  
Author(s):  
O Barragán ◽  
S Aigrain ◽  
D Kubyshkina ◽  
D Gandolfi ◽  
J Livingston ◽  
...  
Keyword(s):  
Radial Velocity ◽  
Detailed Analysis ◽  
Mass Measurement ◽  
Open Cluster ◽  
Low Density ◽  
Active Star ◽  
Process Framework ◽  
Young Open Cluster ◽  
High Level ◽  
Validation Tests

ABSTRACT We present a detailed analysis of HARPS-N radial velocity observations of K2-100, a young and active star in the Praesepe cluster, which hosts a transiting planet with a period of 1.7 d. We model the activity-induced radial velocity variations of the host star with a multidimensional Gaussian Process framework and detect a planetary signal of 10.6 ± 3.0 ${\rm m\, s^{-1}}$, which matches the transit ephemeris, and translates to a planet mass of 21.8 ± 6.2 M⊕. We perform a suite of validation tests to confirm that our detected signal is genuine. This is the first mass measurement for a transiting planet in a young open cluster. The relatively low density of the planet, $2.04 _{ - 0.61 } ^ { + 0.66 }$ ${\rm g\, cm^{-3}}$, implies that K2-100b retains a significant volatile envelope. We estimate that the planet is losing its atmosphere at a rate of $10^{11}\!-\!10^{12}\, {\rm g\, s^{-1}}$ due to the high level of radiation it receives from its host star.

scholarly journals A morphometric assessment of species boundaries in a widespread anole lizard (Squamata: Dactyloidae)

2020 ◽  
Vol 130 (4) ◽  
pp. 813-825
Author(s):  
Tanner C Myers ◽  
Pietro L H de Mello ◽  
Richard E Glor
Keyword(s):  
Cryptic Species ◽  
Model Fitting ◽  
Taxonomic Revision ◽  
Genetic Data ◽  
Morphological Data ◽  
Species Boundaries ◽  
Morphometric Data ◽  
Normal Mixture ◽  
Test Species ◽  
Candidate Species

Abstract Cryptic species – genetically distinct species that are morphologically difficult to distinguish – present challenges to systematists. Operationally, cryptic species are very difficult to identify and sole use of genetic data or morphological data can fail to recognize evolutionarily isolated lineages. We use morphometric data to test species boundaries hypothesized with genetic data in the North Caribbean bark anole (Anolis distichus), a suspected species complex. We use univariate and multivariate analyses to test if candidate species based on genetic data can be accurately diagnosed. We also test alternative species delimitation scenarios with a model fitting approach that evaluates normal mixture models capable of identifying morphological clusters. Our analyses reject the hypothesis that the candidate species are diagnosable. Neither uni- nor multivariate morphometric data distinguish candidate species. The best-supported model included two morphological clusters; however, these clusters were uneven and did not align with a plausible species divergence scenario. After removing two related traits driving this result, only one cluster was supported. Despite substantial differentiation revealed by genetic data, we recover no new evidence to delimit species and refrain from taxonomic revision. This study highlights the importance of considering other types of data along with molecular data when delimiting species.

Struktur und Ausmaß der intergenerationalen Einkommensmobilität in Deutschland / Structure and Extent of Intergenerational Income Mobility in Germany

2009 ◽  
Vol 229 (4) ◽  
Author(s):  
Daniel Schnitzlein
Keyword(s):  
Income Distribution ◽  
Quantile Regression ◽  
Detailed Analysis ◽  
Income Elasticity ◽  
Income Mobility ◽  
Transition Matrices ◽  
Intergenerational Income Mobility ◽  
Regression Approach ◽  
Using Data ◽  
High Level

SummaryThe paper examines the structure and the extent of intergenerational income mobility in Germany. Using data from the German Socio-economic Panel it is possible to look at both, father-son and father-daughter pairs. In the present case the intergenerational income elasticity is 0.26 for father-son pairs and 0.36 for father-daughter pairs. A more detailed analysis is carried out, applying a quantile regression approach. In a third step I estimate the transition matrices of sons. Although there is some persistence at both ends of the income distribution, the results show a high level of intergenerational mobility in Germany.

Health Care Managers in British Columbia, Part I: Who Manages Our System?

1993 ◽  
Vol 6 (1) ◽  
pp. 19-24 ◽  
Author(s):  
Arminée Kazanjian ◽  
Nino Pagliccia
Keyword(s):  
Health Care ◽  
Detailed Analysis ◽  
Supply Side ◽  
Sociodemographic Characteristics ◽  
Health Care Managers ◽  
Care Managers ◽  
Managerial Roles ◽  
Management Roles ◽  
High Level ◽  
First Time

Part I of this article provides, for the first time, the supply side overview of middle- and high-level managers in the B.C. health care system. It presents findings from two province-wide surveys and describes the sociodemographic characteristics and the employment experiences of the population of interest. Part II presents a detailed analysis of management tasks and management roles, and of competency requirements for future managerial roles.

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