The status of Artemia population in tuz lake (Central Anatolia, Turkey)

Research on hypergalin lakes began in 1977. Commercial interest in Artemia (at the cysts stage) as a starter feed for aquatic organisms served as the basis for monitoring studies of hypergalin lakes in the Altai Territory. Lake Bolshaya Yarovoye is noted as one of the largest bodies of water in the region with a population of toad crustacean Artemia Leach, 1819. Considering the depressed state of development of the Artemia population in the lake Great Spring in the growing season of 2017 (the reservoir productivity was 5.8 kg / ha), monitoring studies were conducted to clarify the status of the productivity of aquatic bioresources. As a result of complex hydrobiological surveys in the spring period (April – May), 2018, the dynamics of indicators of the number of early stages of development of the first generation Artemia crustaceans and cysts in the lake are presented. Big Spring Altai Territory. The analysis of the influence of the temperature and salinity of the water in the spring of 2018 on the condition of Artemia crustaceans and the reservoir productivity was carried out. In the course of monitoring studies of the hypergalin reservoir in April and May 2018, during the development of the first generation of crustaceans, a depressive state of development of the Artemia crustacean population was revealed. The temperature at the beginning of the growing season of the current year was unfavorable for the development of Artemia in the lake, which resulted in low numbers of crustaceans. Given the depressed state of the development of the Artemia population in the lake. In the growing season of 2017, the Great Spring, the extraction of bioresources (Artemia (at the cysts stage)) at the current state of the population can significantly undermine the fishing base of the reservoir and damage the further development of Artemia.

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Tuz Lake Special Environment Protection Area, Central Anatolia, Turkey: The EUNIS Habitat Classification and Habitat Change Detection between 1987 and 2007

Ekoloji ◽

10.5053/ekoloji.2015.06 ◽

2015 ◽

pp. 1-9 ◽

Cited By ~ 3

Author(s):

Orhan MERGEN ◽

Cagasan KARACAOGLU

Keyword(s):

Change Detection ◽

Habitat Change ◽

Central Anatolia ◽

Environment Protection ◽

Habitat Classification ◽

Protection Area ◽

Special Environment ◽

Tuz Lake

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The study of interfacial reactions of nickel thin films on GaAs

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100074616 ◽

1983 ◽

Vol 41 ◽

pp. 156-157

Author(s):

L.J. Chen ◽

Y.F. Hsieh

Keyword(s):

Thin Films ◽

Integrated Circuits ◽

Interfacial Reactions ◽

Metal Contacts ◽

Nickel Thin Films ◽

Thin Foils ◽

The Status ◽

Si Doped ◽

Electron Microscopes

One measure of the maturity of a device technology is the ease and reliability of applying contact metallurgy. Compared to metal contact of silicon, the status of GaAs metallization is still at its primitive stage. With the advent of GaAs MESFET and integrated circuits, very stringent requirements were placed on their metal contacts. During the past few years, extensive researches have been conducted in the area of Au-Ge-Ni in order to lower contact resistances and improve uniformity. In this paper, we report the results of TEM study of interfacial reactions between Ni and GaAs as part of the attempt to understand the role of nickel in Au-Ge-Ni contact of GaAs.N-type, Si-doped, (001) oriented GaAs wafers, 15 mil in thickness, were grown by gradient-freeze method. Nickel thin films, 300Å in thickness, were e-gun deposited on GaAs wafers. The samples were then annealed in dry N2 in a 3-zone diffusion furnace at temperatures 200°C - 600°C for 5-180 minutes. Thin foils for TEM examinations were prepared by chemical polishing from the GaA.s side. TEM investigations were performed with JE0L- 100B and JE0L-200CX electron microscopes.

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Fate of sperm membrane in fertilized ova

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100146047 ◽

1993 ◽

Vol 51 ◽

pp. 40-41

Author(s):

Frank J. Longo

Keyword(s):

Electron Microscopy ◽

Electrical Activity ◽

Sea Urchins ◽

Morphological Changes ◽

Integrated System ◽

Electrophysiological Recording ◽

Experimental Conditions ◽

The Status ◽

Sperm Membrane ◽

Temporal And Spatial

Measurement of the egg's electrical activity, the fertilization potential or the activation current (in voltage clamped eggs), provides a means of detecting the earliest perceivable response of the egg to the fertilizing sperm. By using the electrical physiological record as a “real time” indicator of the instant of electrical continuity between the gametes, eggs can be inseminated with sperm at lower, more physiological densities, thereby assuring that only one sperm interacts with the egg. Integrating techniques of intracellular electrophysiological recording, video-imaging, and electron microscopy, we are able to identify the fertilizing sperm precisely and correlate the status of gamete organelles with the first indication (fertilization potential/activation current) of the egg's response to the attached sperm. Hence, this integrated system provides improved temporal and spatial resolution of morphological changes at the site of gamete interaction, under a variety of experimental conditions. Using these integrated techniques, we have investigated when sperm-egg plasma membrane fusion occurs in sea urchins with respect to the onset of the egg's change in electrical activity.

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Revisiting the status of dental ethics instruction

Journal of Dental Education ◽

10.1002/j.0022-0337.2000.64.11.tb03381.x ◽

2000 ◽

Vol 64 (11) ◽

pp. 772-774 ◽

Cited By ~ 5

Author(s):

JG Odom ◽

PL Beemsterboer ◽

TD Pate ◽

NK Haden

Keyword(s):

Ethics Instruction ◽

The Status

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The status of cosmology

Nuclear Physics B - Proceedings Supplements ◽

10.1016/s0920-5632(02)80089-5 ◽

2002 ◽

Vol 110 (2) ◽

pp. 9-15 ◽

Cited By ~ 1

Author(s):

W Freedman

Keyword(s):

The Status

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Multicultural Assessment of Personality and Psychopathology in the United States: Still Art, Not Yet Science, and Controversial

European Journal of Psychological Assessment ◽

10.1027/1015-5759.14.1.62 ◽

1998 ◽

Vol 14 (1) ◽

pp. 62-70 ◽

Cited By ~ 11

Author(s):

Richard H. Dana

Keyword(s):

United States ◽

Racial Identity ◽

The United States ◽

Therapeutic Assessment ◽

Culturally Competent ◽

Research Attention ◽

The Status ◽

Training Research ◽

Multicultural Assessment ◽

Personality Description

This paper describes the status of multicultural assessment training, research, and practice in the United States. Racism, politicization of issues, and demands for equity in assessment of psychopathology and personality description have created a climate of controversy. Some sources of bias provide an introduction to major assessment issues including service delivery, moderator variables, modifications of standard tests, development of culture-specific tests, personality theory and cultural/racial identity description, cultural formulations for psychiatric diagnosis, and use of findings, particularly in therapeutic assessment. An assessment-intervention model summarizes this paper and suggests dimensions that compel practitioners to ask questions meriting research attention and providing avenues for developments of culturally competent practice.

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