scholarly journals Experience herb relocation for preserving its population during reconstruction period

2020 ◽  
Vol 157 ◽  
pp. 02004
Author(s):  
Anton Martsev ◽  
Oleg Selivanov
Keyword(s):  
Selection Methods ◽  
Species Status ◽  
Natural Conditions ◽  
Laboratory Methods ◽  
Natural Place ◽  
Reconstruction Methods ◽  
Vladimir Region ◽  
Anemone Nemorosa ◽  
Reconstruction Period ◽  
Made In

The article is devoted to the experience of transplantation Anemone nemorosa L., listed in the Red book of the Vladimir region as a rare species (status category 3). A feature of this work is transplanting in the autumn period, in connection with the construction of a natural place of growth, in accordance with the conclusion of environmental impact assessment. The aim of the work was to preserve the aboriginal population in natural conditions that are close in their ecological characteristics to the natural place of growth and which do not fall into the zone of reconstruction. Methods. We used the geobotanical description method, soil selection methods, and laboratory methods. Results. The data of the geobotanical description of the initial and recipient habitats of the Anemone nemorosa and soil characteristics are presented. The method of plant transplantation is described in detail. Conclusion. The phenollogical observations made in May 2019 showed that Anemone nemorosa successfully transferred the autumn transplant to a new place. An artificial population of Anemone oakwood was formed, which requires further monitoring studies for adaptation and resistance to transplantation.

Effect of leaf extracts of Carica papaya (Paw paw) and Pakia biglobosa (African locust bean) on some biochemical parameters of albino rats

2021 ◽  
Vol 1 (2) ◽  
pp. 014-021
Author(s):  
Michael Okey Enemali ◽  
Kingsley Ikechukwu Ubaoji ◽  
Chinenye Enoch Oguazu ◽  
Gambo Sunday Haruna ◽  
Kingsley Kelechi Asogwa
Keyword(s):  
Biochemical Parameters ◽  
Carica Papaya ◽  
Control Group ◽  
Albino Rats ◽  
Serum Concentrations ◽  
Leaf Extracts ◽  
Orthodox Medicine ◽  
Laboratory Methods ◽  
African Locust Bean ◽  
Made In

In spite of the advances made in orthodox medicine, there has been an increasing interest in herbal medicine. The leaves of Carica papaya and Pakia biglobosa have been reported to contain lots of beneficial medicinal compounds, hence their use in the traditional prevention, management and treatment of ailments/diseases. In this study, the effect of varied concentrations of the ethanol leaf extract of the plants on some biochemical parameters of albino rats was assessed. The phytochemical compositions of the leaves were determined using established standard laboratory methods. Fifty four male Albino rats weighing between 150g-200g were randomly distributed into nine groups of six animals each. A daily single dose of 500mg/kg, 1000mg/kg, 1500mg/kg and 2000mg/kg body weight of either of the extracts was respectively, administered to the eight test groups for fourteen days. The control group was given only feed and water. Biochemical parameters such as the serum activities of Aspartate Aminotransferase, Alanine Aminotranferase and Alkaline phosphatase as well as the serum concentrations of Bilirubin, Albumin, HCO3-, Urea, Creatinine and Na+ were assessed. Result of the analyses showed that the administration of the extracts did not significantly raise the serum activity of ALT. The decreases in serum concentrations of Urea and increase in the concentration of HCO3- were directly proportional to the concentration of the extracts. It can be deduced from this study, that 500mg, 1000mg 1500mg and 2000mg/kg bw of either C. papaya or P. biglobosa did not elicit any marked hepatotoxicological or renotoxicological effect on the experimental animals

scholarly journals Reconstructing intragranular strain fields in polycrystalline materials from scanning 3DXRD data

2020 ◽  
Vol 53 (2) ◽  
pp. 314-325 ◽  
Author(s):  
N. Axel Henningsson ◽  
Stephen A. Hall ◽  
Jonathan P. Wright ◽  
Johan Hektor
Keyword(s):  
Three Dimensional ◽  
Polycrystalline Materials ◽  
Reconstruction Method ◽  
X Ray Diffraction ◽  
Reconstruction Accuracy ◽  
Strain Fields ◽  
Spatial Properties ◽  
Reconstruction Methods ◽  
Reconstruction Quality ◽  
Made In

Two methods for reconstructing intragranular strain fields are developed for scanning three-dimensional X-ray diffraction (3DXRD). The methods are compared with a third approach where voxels are reconstructed independently of their neighbours [Hayashi, Setoyama & Seno (2017). Mater. Sci. Forum, 905, 157–164]. The 3D strain field of a tin grain, located within a sample of approximately 70 grains, is analysed and compared across reconstruction methods. Implicit assumptions of sub-problem independence, made in the independent voxel reconstruction method, are demonstrated to introduce bias and reduce reconstruction accuracy. It is verified that the two proposed methods remedy these problems by taking the spatial properties of the inverse problem into account. Improvements in reconstruction quality achieved by the two proposed methods are further supported by reconstructions using synthetic diffraction data.

scholarly journals Taking nature into lab: biomineralization by heavy metal resistant streptomycetes in soil

2013 ◽  
Vol 10 (2) ◽  
pp. 2345-2375 ◽  
Author(s):  
E. Schütze ◽  
A. Weist ◽  
M. Klose ◽  
T. Wach ◽  
M. Schumann ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Resistance Mechanisms ◽  
Metal Resistance ◽  
Control Soil ◽  
Natural Conditions ◽  
Laboratory Methods ◽  
Dominant Property ◽  
Resistant Strains ◽  
Heavy Metal Resistant ◽  
And Control

Abstract. Biomineralization by heavy metal resistant streptomycetes was tested to evaluate the potential influence on metal mobilities in soil. Thus, we designed an experiment adopting conditions from classical laboratory methods to natural conditions prevailing in metal-rich soils with media spiked with heavy metals, soil agar, and nutrient enriched or unamended soil incubated with the bacteria. As a result, all strains were able to form struvite minerals on tryptic soy broth (TSB) media supplemented with AlCl2, MnCl2 and CuSO4, as well as on soil agar. Some strains additionally formed struvite on nutrient enriched contaminated and control soil, as well as on metal contaminated soil without addition of media components. In contrast, switzerite was exclusively formed on minimal media spiked with MnCl2 by four heavy metal resistant strains, and on nutrient enriched control soil by one strain. Hydrated nickel hydrogen phosphate was only crystallized on complex media supplemented with NiSO4 by most strains. Thus, mineralization is a~dominant property of streptomycetes, with different processes likely to occur under laboratory conditions and sub-natural to natural conditions. This new understanding may be transferred to formation of minerals in rock and sediment evolution, to ore deposit formation, and also might have implications for our understanding of biological metal resistance mechanisms. We assume that biogeochemical cycles, nutrient storage and metal resistance might be affected by formation and re-solubilization of minerals like struvite in soil at microscale.

scholarly journals The solubility of calcium carbonate in tropical sea water

1941 ◽  
Vol 25 (2) ◽  
pp. 235-242 ◽  
Author(s):  
C. L. Smith
Keyword(s):  
Calcium Carbonate ◽  
Solubility Product ◽  
Sea Water ◽  
Natural Conditions ◽  
The West ◽  
Equilibrium Conditions ◽  
Maximum Value ◽  
Andros Island ◽  
Tropical Sea ◽  
Made In

In a previous paper (Smith, 1940b) the chemical changes observed in ocean sea water flowing across the shallow banks on the west coast of Andros Island (Bahamas) were reported. High salinities were produced by evaporation and calcium carbonate was precipitated. From the data obtained under natural conditions a maximum value of the solubility product constant of calcium carbonate in sea water was suggested. There was no reason to believe, however, that this value of the constant represented the true equilibrium conditions, and experiments have since been made in the laboratory with a view to bringing water from these banks into equilibrium with solid calcium carbonate.

A Review of Progress in the Canadian Nuclear Fuel Waste Management Program

1985 ◽  
Vol 50 ◽  
Author(s):  
R. B. Lyon ◽  
L. H. Johnson
Keyword(s):  
Waste Management ◽  
Nuclear Fuel ◽  
Management Program ◽  
Selection Methods ◽  
Transportation Fuel ◽  
Waste Immobilization ◽  
Fuel Storage ◽  
And Performance ◽  
Nuclear Fuel Waste ◽  
Made In

AbstractThe Canadian Nuclear Fuel Waste Management Program is reviewed, illustrating the progress that has been made in assessing the concept of disposal of nuclear fuel waste in plutonic rock of the Canadian Shield. Research is being conducted into used fuel storage and transportation, fuel waste immobilization, site characterization and selection methods, and performance assessment modelling. Details of achievements in these areas are outlined, and results of the most recent interim assessment are discussed.

scholarly journals Coenological and grassland management studie in different planted and renewed grasslands

2013 ◽  
pp. 55-58
Author(s):  
Boglárka Uj ◽  
Lajos Juhász ◽  
László Szemán ◽  
Levente Ifj. Viszló ◽  
András Penszka ◽  
...  
Keyword(s):  
Grassland Management ◽  
The Other ◽  
Botanical Composition ◽  
Old Field ◽  
Natural Conditions ◽  
Number Of Species ◽  
Natural Grasslands ◽  
Cattle Pasture ◽  
Transfer Method ◽  
Made In

We studied the vegetation of a 260 ha Hungarian Grey Cattle pasture near Páskom, which can be found in Zámoly basin. We carried out our surveyes in May 2012. The pasture can be divided into five parts. One part, approximately the half of the area (150.83 ha), is an old-field grassland, which was overseeded 20 years ago. The other half of the pasture was restored (109.17 ha) in 4 different ways in 2009 and then was mowed until 2011. Seven relevés were made in each part of the pasture (the occurence of species and their cover value were recorded). The aim of our study was to compare the effects of the different restoration methods and mowing on the botanical composition of the pasture. The results showed, that the grassland restored with hay transfer method was the most similar to the natural conditions. The greatest number of species was recorded in that part and the species of natural grasslands become dominant. The directly sowed and the spontaneous grassland parts separated chiefly from the semi-natural 20 years old grassland.

The consistency of ZFC + 2ℵ0 > ℵω + ℐ(ℵ2) = ℐ(ℵω)

1997 ◽  
Vol 62 (4) ◽  
pp. 1151-1160 ◽  
Author(s):  
Martin Gilchrist ◽  
Saharon Shelah
Keyword(s):  
Complete Graph ◽  
Color Patterns ◽  
Natural Place ◽  
Uncountable Cardinal ◽  
Compactness Theorems ◽  
Made In

Let κ be an uncountable cardinal and the edges of a complete graph with κ vertices be colored with ℵ0 colors. For the Erdős-Rado theorem implies that there is an infinite monochromatic subgraph. However, if , then it may be impossible to find a monochromatic triangle. This paper is concerned with the latter situation. We consider the types of colorings of finite subgraphs that must occur when . In particular, we are concerned with the case ℵ1 ≤ κ ≤ ℵω.The study of these color patterns (known as identities) has a history that involves the existence of compactness theorems for two cardinal models [4]. When the graph being colored has size ℵ1, the identities that must occur ((ℵ1)) have been classified by Shelah [6]. If the graph has size greater than or equal to ℵω the identities that must occur ((ℵω)) have also been classified in [5]. This leaves open the question of how the sets (ℵm) (2 ≤ m < ω) fit between (ℵ1) and ⊆ (ℵω). Some progress in this direction has been made in the paper [2]. It is there shown that if ZFC is consistent then so is for each m < ω. The number of colors is fixed at ℵ0 as it is the natural place to start and the results here can be generalized to more colors. We first give some definitions and establish some notation.

scholarly journals Evaluating Lifewide Learning Habits of Academicians for Sustainable Development

2016 ◽  
Vol 7 (2) ◽  
pp. 132-143 ◽  
Author(s):  
Buket Aslandağ Soylu ◽  
Tuğba Yanpar Yelken ◽  
Mustafa Kemal Külekci
Keyword(s):  
Higher Education ◽  
Sustainable Development ◽  
Role Models ◽  
Personal Development ◽  
Complex Nature ◽  
Development Tool ◽  
Explanatory Factor Analysis ◽  
Reconstruction Period ◽  
Faculties Of Education ◽  
Made In

Abstract In today’s higher education institutions in which sustainable development has been highly emphasized, individuals have changed the understanding of graduates of higher education; as such universities have emerged into a reconstruction period. In such a process, universities have been in need of academicians who are well development in both personal and professional domains. The concept of Lifewide learning, which is an important sustainable development tool, has underlined the fact that people should graduate as wholly-developed people to fulfill the needs of future societies, which releases the idea that academicians are to be role models for students. This study reflects on the research designed to develop and test an instrument that could identify the component of an academician’s Lifewide learning habits. Because of the complex nature of the Lifewide learning, considerable attempts were made in order to handle the process of classifying the cognitive, affective, social, technical and cultural domains related to academicians working in faculties of education. The developed instrument was trialled with 50 academicians, and the data was subjected to an explanatory factor analysis, allowing the identification of 6 sub-dimensions of Lifewide learning. These dimensions appeared to be capable of differentiating between problem-solving, professional habits, cultural interaction, leadership, care-based habits and leisure habits of academicians. The final version of the scale was applied to 211 academicians from faculties of education at 30 universities via “Google Drive”, and Lifewide habits of related people were assessed regarding their gender, title and department. Depending on the collected data, Lifewide learning habits of academicians were discussed, and some suggestions were proposed to support their professional and personal development.

Processing Characteristics of Synthetic Tire Rubber

1943 ◽  
Vol 16 (1) ◽  
pp. 203-208
Author(s):  
B. S. Garvey ◽  
M. H. Whitlock ◽  
J. A. Freese
Keyword(s):  
Natural Rubber ◽  
Laboratory Tests ◽  
Laboratory Methods ◽  
Tire Rubber ◽  
Synthetic Rubber ◽  
Different Types ◽  
Full Production ◽  
The Government ◽  
Processing Properties ◽  
Made In

Abstract The processing characteristics of synthetic tire rubber, such as is being made in the government program, are sufficiently different from those of natural rubber to require different laboratory and factory treatment. Since the laboratory tests used for the evaluation of processing characteristics were developed for natural rubber, it is not surprising that they are not so satisfactory for synthetic rubber. The purpose of this paper is to discuss some of the characteristics of synthetic tire rubber, and to describe certain tests which have been found useful for evaluating different types of synthetic rubber or different compounds of the same synthetic rubber. In the course of the development, it has been necessary to evaluate rubbers with a wide variety of processing properties. As production has increased, there has been less variation in the output from any one plant. As the newer and larger plants come into full production, we can expect greater uniformity from each plant and between different plants. We can also look forward to gradual improvements in processing characteristics. This development will be ensured by adequate laboratory methods for evaluating processing properties. This discussion is based in part on variations encountered in development work and in part on the properties of the present production from one plant.

scholarly journals Some features of reproduction and egg development of Stichaeus grigorjewi from Peter the Great Bay

2014 ◽  
Vol 176 (1) ◽  
pp. 85-92
Author(s):  
Alexander I. Markevich ◽  
Valentina P. Gnyubkina
Keyword(s):  
Water Temperature ◽  
Peter The Great Bay ◽  
Natural Conditions ◽  
Egg Development ◽  
Peter The Great ◽  
Great Bay ◽  
First Time ◽  
Made In

Reproduction of long shanny Stichaeus grigorjewi is observed in natural conditions and its eggs embryogenesis is investigated in details in aquarium. The embryos and larvae of S. grigorjewi differ from other species by strong development of midbrain that assumes good eyesight forming. Duration of egg development and morphology of embryos and larvae coincide with earlier description made in Hokkaido, Japan, except of body ventral row of 10 melanophores described for S. grigorjewi larvae for the first time. The embryogenesis accelerates sharply under heightened water temperature.

Sign in / Sign up

Export Citation Format

Share Document