scholarly journals Context‐Dependent Responses of Aquatic Insects to Metals and Metal Mixtures: A Quantitative Analysis Summarizing 24 Yr of Stream Mesocosm Experiments

2019 ◽  
Vol 38 (11) ◽  
pp. 2486-2496 ◽  
Author(s):  
William H. Clements ◽  
Pete Cadmus ◽  
Christopher J. Kotalik ◽  
Brian A. Wolff
Keyword(s):  
Quantitative Analysis ◽  
Aquatic Insects ◽  
Metal Mixtures ◽  
Mesocosm Experiments ◽  
Stream Mesocosm ◽  
Context Dependent

Preliminary Results on Aquatic Insects in the Me Linh Station for Biodiversity, Vinh Phuc Province

2017 ◽  
Vol 33 (4) ◽  
Author(s):  
Nguyen Van Hieu ◽  
Nguyen Van Vinh
Keyword(s):  
Quantitative Analysis ◽  
Aquatic Insects ◽  
Field Survey ◽  
Aquatic Insect ◽  
Insect Species ◽  
Functional Feeding Groups ◽  
Species Number ◽  
Feeding Groups ◽  
Preliminary Results

An intensive field survey on aquatic insects of Me Linh Station for Biodiversity in Vinhphuc province was conducted in December 2015. Specimens were collected at 8 different sites and aquatic insects were collected both quantitatively by Surber net and qualitatively by hand net, pond net. As a result, a total of 110 aquatic insect species belonging to 98 genera, 49 families and 9 orders were recognized. Among these, the order Ephemeroptera had the highest species number with 26 species, followed by Odonata with 25 species, Trichoptera with 18 species, Coleoptera with 15 species, Hemiptera with 11 species, Diptera with 9 species. Lepidoptera, Plecoptera and Megaloptera had the lowest of species number, represented by 3 species of Lepidoptera, 2 species of Plecoptera and 1 species of Megaloptera. Besides, the quantitative analysis results and the functional feeding groups were provided.

PRELIMINARY RESULTS ON SPECIES COMPOSITION OF AQUATIC INSECTS IN DAI DINH TOWN, TAM DAO DISTRICT, VINH PHUC PROVINCE

2020 ◽  
Vol 65 (10) ◽  
pp. 173-179
Author(s):  
Hieu Nguyen Van
Keyword(s):  
Quantitative Analysis ◽  
Species Composition ◽  
Preliminary Data ◽  
Aquatic Insects ◽  
Rainy Season ◽  
Field Survey ◽  
Aquatic Insect ◽  
Mesh Size ◽  
Functional Feeding Groups ◽  
Species Number

In this study, specimens were collected at 5 different sites. The aquatic insects were collected both quantitatively by Surber net (size 50 cm × 50 cm, mesh size 0.2 mm) and qualitatively by hand net and pond net. A field survey was conducted in December 2019 (dry season) and in June 2020 (rainy season). The study aims to show the preliminary data on faunas and communities of aquatic insects in Dai Dinh town, Tam Dao district, Vinh Phuc province. As a result, a total of 91 aquatic insect species belonging to 76 genera, 44 families, and 9 orders were recognized. Among these, the order Ephemeroptera had the highest species number with 32 species; followed by order Trichoptera with 18 species; order Odonata with 16 species; order Coleoptera with 8 species; order Hemiptera and Diptera with 6 species, each; order Plecoptera with 3 species. Order Lepidoptera and Megaloptera had the lowest of species number, represented by 1 species for each order. Besides, the quantitative analysis results and the functional feeding groups were provided in this study.

scholarly journals A Quantitative Analysis of Context-Dependent Remapping of Medial Frontal Cortex Neurons and Ensembles

2016 ◽  
Vol 36 (31) ◽  
pp. 8258-8272 ◽  
Author(s):  
L. Ma ◽  
J. M. Hyman ◽  
D. Durstewitz ◽  
A. G. Phillips ◽  
J. K. Seamans
Keyword(s):  
Quantitative Analysis ◽  
Frontal Cortex ◽  
Medial Frontal Cortex ◽  
Context Dependent

scholarly journals INFLUENCE OF NITROGEN AND PHOSPHORUS CONCENTRATIONS AND RATIOS ON LEMNA GIBBA GROWTH RESPONSES TO TRICLOSAN IN LABORATORY AND STREAM MESOCOSM EXPERIMENTS

2009 ◽  
Vol 28 (12) ◽  
pp. 2610 ◽  
Author(s):  
Barry A. Fulton ◽  
Richard A. Brain ◽  
Sascha Usenko ◽  
Jeffrey A. Back ◽  
Ryan S. King ◽  
...  
Keyword(s):  
Lemna Gibba ◽  
Growth Responses ◽  
Nitrogen And Phosphorus ◽  
Mesocosm Experiments ◽  
Stream Mesocosm

An Improved Quantitative Image Analyser

1977 ◽  
Vol 35 ◽  
pp. 226-227
Author(s):  
J.P. Fallon ◽  
P.J. Gregory ◽  
C.J. Taylor
Keyword(s):  
Feature Extraction ◽  
Quantitative Analysis ◽  
Frequency Content ◽  
General Sense ◽  
Physical Measurements ◽  
Quantitative Image ◽  
Image Analyser ◽  
Automatic Methods ◽  
Quantitative Results

Quantitative image analysis systems have been used for several years in research and quality control applications in various fields including metallurgy and medicine. The technique has been applied as an extension of subjective microscopy to problems requiring quantitative results and which are amenable to automatic methods of interpretation.Feature extraction. In the most general sense, a feature can be defined as a portion of the image which differs in some consistent way from the background. A feature may be characterized by the density difference between itself and the background, by an edge gradient, or by the spatial frequency content (texture) within its boundaries. The task of feature extraction includes recognition of features and encoding of the associated information for quantitative analysis.Quantitative Analysis. Quantitative analysis is the determination of one or more physical measurements of each feature. These measurements may be straightforward ones such as area, length, or perimeter, or more complex stereological measurements such as convex perimeter or Feret's diameter.

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