New developments in very high rate silver oxide electrodes

Abstract.—The shortnose sturgeon, Acipenser brevirostrum, is a long-lived species that grows slowly, matures at an advanced age, and spawns only intermittently. In the Connecticut River, there are two distinct subpopulations of shortnose sturgeon, which have been separated by the Holyoke Dam for 157 years. My research addressed the viability and persistence for these two separate populations and the effects of dispersal, variation in survival and reproduction, and catastrophes. My risk-based approach used a stage-based metapopulation model that I constructed in RAMAS® GIS incorporating the available data. Based on the existing data, this population model for the shortnose sturgeon metapopulation in the Connecticut River made several predictions. The observed stability of the two subpopulations was possible either: with reproduction in both upper and lower subpopulations and small to moderate rates of dispersal between them; or with no reproduction in the lower subpopulation, very high reproduction in the upper subpopulation and high rate of net downstream dispersal. My results provided estimates of extinction risk for the shortnose sturgeon metapopulation under various management options and highlighted three key areas for future research, demonstrating the value of a risk-based approach. This approach is particularly useful for management of long-lived aquatic species.

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Accelerated Erosion and Sedimentation in Southeast Asia

The Physical Geography of Southeast Asia ◽

10.1093/oso/9780199248025.003.0026 ◽

2005 ◽

Author(s):

Avijit Gupta

Keyword(s):

Southeast Asia ◽

Sediment Yield ◽

Large Scale ◽

Drainage Basin ◽

High Rate ◽

Annual Rainfall ◽

Sediment Yields ◽

Erosion Rates ◽

Sediment Transfer ◽

Very High

Periodic attempts to plot global distribution of erosion and sedimentation usually attribute most of Southeast Asia with a very high sediment yield (Milliman and Meade 1983). The erosion rates and sediment yield figures are especially high for maritime Southeast Asia. Milliman and Syvitski (1992), for example, listed 3000 t km−2 yr−1 for the archipelagos and peninsulas of Southeast Asia. They provided a number of natural explanations for the high erosion rate: location near active plate margins, pyroclastic eruptions, steep slopes, and mass movements. This is also a region with considerable annual rainfall, a very substantial percentage of which tends to be concentrated in a few months and falls with high intensity. Part of Southeast Asia (the Philippines, Viet Nam, Timor) is visited by tropical cyclones with heavy, intense rainfall and possible associated wind damage to existing vegetation. The fans at the foot of slopes, the large volume of sediment stored in the channel and floodplain of the rivers, and the size of deltas all indicate a high rate of erosion and episodic sediment transfer. This episodic erosion and sediment transfer used to be controlled for most of the region by the thick cover of vegetation that once masked the slopes. When vegetation is removed soil and regolith de-structured, and natural slopes altered, the erosion rates and sediment yield reach high figures. Parts of Southeast Asia display striking anthropogenic alteration of the landscape, although the resulting accelerated erosion may be only temporary, operating on a scale of several years. Over time the affected zones shift, and slugs of sediment continue to arrive in a river but from different parts of its drainage basin. The combination of anthropogenic alteration and fragile landforms may give rise to very high local yields. Sediment yields of more than 15 000 t km−2 yr−1 have been estimated from such areas (Ruslan and Menam, cited in Lal 1987). This is undoubtedly towards the upper extreme, but current destruction of the vegetation cover due to deforestation, expansion of agriculture, mining, urbanization, and implementation of large-scale resettlement schemes has increased the sediment yield from < 102 to > 103 t km−2 yr−1.

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Comorbidity of Bipolar and Substance Use Disorders

Bipolar Disorder ◽

10.1093/med/9780190908096.003.0006 ◽

2020 ◽

pp. 75-82

Author(s):

Josh E. Becker ◽

E. Sherwood Brown

Keyword(s):

Bipolar Disorder ◽

Substance Use ◽

Treatment Adherence ◽

Substance Use Disorder ◽

Psychological Factors ◽

High Rate ◽

Special Treatment ◽

Poor Treatment ◽

Very High

Bipolar disorder and substance use disorder co-occur at very high rates. The high rate is likely due to a complex interaction of biological, social, and psychological factors, and some research suggests that use of substances may be to mitigate symptoms associated with bipolar disorder. Some studies have shown that men with bipolar disorder may be at a higher risk for a substance use disorder than women. The co-occurrence of these disorders leads to poorer treatment outcomes because of higher rates of suicidality, poor treatment adherence, lower quality of life, and more frequent relapse. This population deserves special treatment consideration.

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Analysis and Visualization of Data Assimilating Hive and COGNOS Insight 10.2.2

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i2.6.11271 ◽

2018 ◽

Vol 7 (2.6) ◽

pp. 318

Author(s):

Mandeep Virk ◽

Vaishali Chauhan ◽

Urvashi Mittal

Keyword(s):

Big Data ◽

Data Analysis ◽

High Rate ◽

Huge Data ◽

Suitable Form ◽

Visualization Of Data ◽

Very High

Data analysis is the most grueling tasks in the coinciding world. The size of data is increasing at a very high rate because of the procreation of peripatetic gadgets and sensors attached. To make that data readable is another challenging task. Effectual visualization provides users with better analysis capabilities and helps in deriving evidence about data. Many techniques and tools have been invented to deal with such problems but to make these tools amendable is the main mystification. It is the big data that originated as a technology which is proficient in assembling and transforming the colossal and divergent figures of data, providing organizations with meaningful insights for derivingimprovedresults. Big data is accustomed to delineate technologies and techniques which are used to store, manage, distribute and analyze huge data sheets. The existent of administrating this research is to make the data readable in a more suitable form with less comprehend. Mainly the research emphasizes on the fabrication of using COGNOS insight 10.2.2 for visualizing data and implementing the analyzed results derived from the hive. The assimilation between tools has also been reformed in this research.

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The competitiveness of Czech agrarian trade within the context of the global crisis

Agricultural Economics (Zemědělská ekonomika) ◽

10.17221/103/2012-agricecon ◽

2013 ◽

Vol 59 (No. 4) ◽

pp. 183-193 ◽

Cited By ~ 1

Author(s):

L. Smutka ◽

J. Burianová

Keyword(s):

Czech Republic ◽

World Trade ◽

World Economy ◽

Agricultural Trade ◽

High Rate ◽

The Czech Republic ◽

The World ◽

Territorial Structure ◽

Merchandise Trade ◽

Very High

World trade underwent a significant shock within the recent years, which caused a decline in the world economy primarily in the year 2009. Within the following years (2010 and 2011), the high rate of growth from the years preceding the crisis could not be restored. The crisis had an impact on all segments of the merchandise trade, whereby the trade in agricultural and food products was affected the least by the crisis. In the case of the Czech Republic, the crisis of the global and national economy was reflected in the case of agricultural trade primarily by the way of a decline in the rate of the growth of export, which was very high in the period prior to the crisis. As far as the territorial structure and commodity structure of agricultural trade is concerned, their development in the years 2008–2011 was not affected in any largely significant manner. In relation to the main objective of this article, which was to identify the effects of the crisis on the competitiveness of Czech agricultural trade, it may be stated that the crisis itself did not worsen the competitiveness of agricultural trade in any significant manner.  

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Characterization of High-Rate Deposited Microcrystalline Si Films Prepared Using Atmospheric-Pressure Very High Frequency Plasma

ECS Meeting Abstracts ◽

10.1149/ma2009-02/34/2510 ◽

2009 ◽

Keyword(s):

Atmospheric Pressure ◽

High Frequency ◽

High Rate ◽

Very High Frequency ◽

High Frequency Plasma ◽

Frequency Plasma ◽

Si Films ◽

Very High

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Origin, diversity and distribution of freshwater epigean amphipods in Maghreb

Annales de Limnologie - International Journal of Limnology ◽

10.1051/limn/2019012 ◽

2019 ◽

Vol 55 ◽

pp. 13 ◽

Cited By ~ 1

Author(s):

Khaoula Ayati ◽

Ramzi Hadjab ◽

Hichem Khammar ◽

Sonia Dhaouadi ◽

Christophe Piscart ◽

...

Keyword(s):

Northern Africa ◽

High Rate ◽

Conservation Strategies ◽

Undescribed Species ◽

General Lack ◽

The World ◽

Low Diversity ◽

Freshwater Amphipods ◽

Freshwater Fauna ◽

Very High

Northern Africa, although one of the world hotpots of biodiversity, is poorly studied and the freshwater fauna living in this part of the world remains partly unknown. This study focused on the diversity and distribution of the poorly known epigean freshwater amphipods. We performed an exhaustive analysis of the literature on this group of crustaceans and sampled 106 additional localities from the eastern part of Algeria and in Tunisia. Our results showed an important diversity with 25 species (including the presence of at least three new undescribed species) and a very high rate of endemism with 52% of species occurring at on only 1 or 2 sites. We also highlighted a very low diversity on each site with only 4.4% of sites harboring more than 1 species. The comparative distribution of certain species between Europe and Maghreb and also between the western and eastern part of Northern Africa allow us to discuss some hypotheses about the factors underlying this endemism and the biogeographical origin of species. However, our study revealed a general lack of knowledge in the region, especially in the South of Morocco and Algeria. Hence, more information would be needed to propose adapted conservation strategies of freshwater fauna in Maghreb.

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Innovative Biological Treatment Processes for Wastewater in Canada

Water Quality Research Journal ◽

10.2166/wqrj.2003.018 ◽

2003 ◽

Vol 38 (2) ◽

pp. 243-265 ◽

Cited By ~ 5

Author(s):

Catherine N. Mulligan ◽

Bernard F. Gibbs

Keyword(s):

Biological Treatment ◽

Waste Treatment ◽

Oil Spills ◽

Metal Removal ◽

Oxygen Demand ◽

High Rate ◽

Future Research ◽

New Developments ◽

Treatment Processes ◽

Stage Of Development

Abstract Biological treatment of wastewater has been employed successfully for many types of industries. Aerobic processes have been used extensively. Production of large amounts of sludge is the main problem and methods such as biofilters and membrane bioreactors are being developed to combat this phenomenon. Anaerobic waste treatment has undergone significant developments and is now reliable with low retention times. The UASB, the original high rate anaerobic reactor, is now becoming less popular than the EGSB reactor. New developments such as the Annamox process are highly promising for nitrogen removal. For metal removal, processes such as biosorption and biosurfactants combined with ultrafiltration membranes are under development. Biosurfactants have also shown promise as dispersing agents for oil spills. If space is available, wetlands can be used to reduce biological oxygen demand (BOD), total suspended solids (TSS), nutrients and heavy metals. These innovative processes are described in this paper in terms of applications, the stage of development, and future research needs particular to Canada.

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