scholarly journals Species-specificity of the glutathione reduced form accumulation in the arboreal plants, testing influence of industrial emissions

2010 ◽  
pp. 105-110
Author(s):  
Dmitry Syshchykov
Keyword(s):  
Botanical Garden ◽  
Negative Influence ◽  
Active Oxygen ◽  
Reduced Form ◽  
Industrial Emissions ◽  
Botanic Garden ◽  
Active Oxygen Forms ◽  
Conditional Control ◽  
Red Lead ◽  
Negative Factors

Conducted are researches of dynamics of glutathione reduced form maintenance in the leaves of arboreal plants which grow in the zones of different level of contamination by industrial emissions of“Red Lead Factory” LTD and ArselorMittal Kryvyi Rig. For comparison, similar  investigations were conducted in the intact Botanic Garden in s.c.t. Sofievka. Findings testify to absence of negative influence of industrial emissions and, thus, the arboretum of botanical garden also can be examined as conditional control. It was stated that it is set a few strategies of active oxygen forms and their metabolites deactivation, appearing in cells under action of environment negative factors. To our opinion, fluctuation of glutathione reduced form maintenance can examine as an index of plants stability, on which investigational species can be distributed on steady and moderato steady.

scholarly journals The reproductive biology of Calligonum L. in relation to ex situ conservation in a botanical garden

2011 ◽  
Vol 63 (3) ◽  
pp. 799-809 ◽  
Author(s):  
Kang Xiaoshan ◽  
Pan Borong ◽  
Duan Shimin ◽  
Shi Wei ◽  
Zhang Yongzhi
Keyword(s):  
Seed Germination ◽  
Ex Situ Conservation ◽  
Flowering Phenology ◽  
Botanical Garden ◽  
Breeding Systems ◽  
Ex Situ ◽  
Germplasm Resources ◽  
Botanic Garden ◽  
Theoretical Support ◽  
Germplasm Resource

In this study, we observed the flowering phenology, breeding system, pollination and seed germination of four species of Calligonum (C. calliphysa, C. rubicundum, C. densum and C. ebinuricum) in the Turpan Eremophytes Botanic Garden, China. Our results showed that the species had overlapping flowering phenologies and were pollinated by similar pollination agents. Their breeding systems were self-compatible, and with signs of outbreeding, but not of hybridization with each other; the main isolation mechanism was post-zygotic isolation and they also had high seed germination rates. Therefore, they are suited to ex situ conservation in the Turpan Eremophytes Botanic Garden, and can supply sufficient seeds for renewal populations and the conservation of germplasm resources. Furthermore, these results provide theoretical support for the construction of a national germplasm resource garden of Calligonum, and for the introduction to the garden of other eremophyteplants and their conservation.

scholarly journals Poisoning Effects of Phosphorus, Potassium and Lead on V2O5-WO3/TiO2 Catalysts for Selective Catalytic Reduction with NH3

Catalysts ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 345
Author(s):  
Jifa Miao ◽  
Xianfang Yi ◽  
Qingfa Su ◽  
Huirong Li ◽  
Jinsheng Chen ◽  
...  
Keyword(s):  
Catalytic Reduction ◽  
Active Oxygen Species ◽  
Negative Influence ◽  
Acid Sites ◽  
Active Oxygen ◽  
Oxygen Species ◽  
Poisoning Effect ◽  
The Past ◽  
Nox Conversion ◽  
Vanadium Species

The poisoning effect of single elements on commercial V2O5-WO3/TiO2 catalysts has been studied in the past decades. In this study, the combined effects of two multi-element systems (phosphorus-potassium and phosphorus-lead) on V2O5-WO3/TiO2 catalysts were studied by diverse characterizations. The results show that potassium and lead can result in the deactivation of catalysts to different degrees by reacting with active acid sites and reducing the amount of V5+. However, phosphorus displays slight negative influence on the NOx conversion of the catalyst due to the comprehensive effect of reducing V5+ amount and generating new acid sites. The samples poisoned by phosphorus–potassium and phosphorus–lead have higher NOx conversion than that by potassium or lead, because doped potassium or lead atoms may react with new acid sites generated by phosphate, which liberates more V–OH on the surface of catalysts and reduces the poisoning effects of potassium or lead on vanadium species and active oxygen species.

Emission of active oxygen forms from a deposited bismuth oxide

2006 ◽  
Vol 80 (2) ◽  
pp. 294-295 ◽  
Author(s):  
A. N. Emel’yanov ◽  
N. V. Shcherbakov ◽  
M. V. Vishnetskaya ◽  
D. P. Shashkin ◽  
Yu. N. Rufov
Keyword(s):  
Bismuth Oxide ◽  
Active Oxygen ◽  
Active Oxygen Forms

ÁNGEL GUIRAO Y LA ENSEÑANZA DE LA BOTÁNICA. SU PAPEL EN EL DESARROLLO DEL JARDÍN DEL INSTITUTO PROVINCIAL DE SEGUNDA ENSEÑANZA DE MURCIA

2020 ◽  
pp. 99-122
Author(s):  
Jose Pedro Marín Murcia
Keyword(s):  
Natural History ◽  
Secondary School ◽  
Key Words ◽  
Botanical Garden ◽  
Royal Botanic Garden ◽  
The Other ◽  
Botanic Garden ◽  
Historia Natural ◽  
Practical Teaching

Resumen El objetivo de este trabajo es doble. En primer lugar, estudiamos la figura y la obra del médico y naturalista Ángel Guirao Navarro al frente del Instituto Provincial de Segunda Enseñanza de Murcia. Este polifacético profesor tuvo un importante rol en el desarrollo de los espacios escolares para la enseñanza práctica de la Historia Natural, dándoles contenido con la aportación de objetos naturales recolectados por él o adquiridos por el Instituto. También analizamos los materiales de apoyo para esa enseñanza como: los libros de texto, el herbario y las láminas de pared. Por otro lado, estudiamos el espacio utilizado para la enseñanza práctica de la Botánica y la Agricultura. El papel de Ángel Guirao en el desarrollo del Jardín Botánico fue clave para que este se convirtiera en uno de los jardines educativos más completos de España con la construcción de invernaderos de cristal, umbráculos, pabellón docente y la adquisición de plantas y semillas facilitadas por el Jardín Botánico de Valencia, el Real Jardín Botánico de Madrid y el Instituto Agronómico de la Moncloa. Abstract The goal of this paper is twofold. First, we study the figure and work of the medicine doctor and naturalist Ángel Guirao Navarro, head of the Secondary School of Murcia. This versatile teacher played an important role in the development of scholar spaces for the practical teaching of Natural History by contributing with natural objects collected by him or acquired by the Secondary School of Murcia. We also analyse the pedagogical materials for this teaching such as: textbooks, herbarium and wall papers. On the other hand, we study the space used for the practical teaching of botany and agriculture. The role of Ángel Guirao in the development of the Botanical Garden was key for it to become one of the most complete educative gardens of Spain with the construction of glass greenhouses, shade structures, one teaching pavilion, as well as the acquisition of plants and seeds provided by the Botanical Garden of Valencia, the Royal Botanic Garden of Madrid and the Agronomic Institute of La Moncloa. Palabras claves: Botánica, Historia Natural, educación, espacios escolares, enseñanza de la botánica, jardines botánicos. Key words: Botany, Natural History, education, scholar spaces, teaching of botany, botanical gardens.

Indirect electrochemical oxidation of aliphatic alcohols to carboxylic acids by active oxygen forms in aqueous media

2011 ◽  
Vol 47 (10) ◽  
pp. 1146-1151 ◽  
Author(s):  
N. V. Chaenko ◽  
G. V. Kornienko ◽  
A. M. Kosheleva ◽  
N. G. Maksimov ◽  
V. L. Kornienko
Keyword(s):  
Electrochemical Oxidation ◽  
Carboxylic Acids ◽  
Aqueous Media ◽  
Active Oxygen ◽  
Aliphatic Alcohols ◽  
Active Oxygen Forms

scholarly journals The influence of antioxidant heat treatment on utilization of active oxygen forms during storage of cucumbers

2017 ◽  
Vol 4 (3(36)) ◽  
pp. 35-41
Author(s):  
Olesia Priss ◽  
Olena Danchenko ◽  
Viktoria Yevlash ◽  
Valentina Zhukova ◽  
Valentуna Verkholantseva ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Active Oxygen ◽  
Active Oxygen Forms

scholarly journals Students’ Experiential Learning in Botanic Garden Leisure Setting

2017 ◽  
Vol 2 (5) ◽  
pp. 223
Author(s):  
Noralizawati Mohamed ◽  
Noriah Othman
Keyword(s):  
Experiential Learning ◽  
Learning Environment ◽  
Cognitive Skills ◽  
Outdoor Recreation ◽  
Publishing House ◽  
Good Practice ◽  
Education Programme ◽  
Botanical Garden ◽  
Botanic Garden ◽  
International Publishing

Botanic garden is associated with environment conservation, outdoor recreation and education programme for students. The learning opportunities that take place in the garden functions as a window of knowledge, a platform to build better understanding beside aroused cognitive skills during visitation. This study is aimed to identify the potential of Putrajaya Botanical Garden as a learning environment. The finding showed the male respondents rated higher than the female in all attributes associated with experiential learning at the garden. With good practice of design and management, this garden can continuously serves as successful educational learning environment and achieve its mission.Keywords: Experiential learning; leisure setting; botanic garden; educational learning environmentISSN: 2398-4287© 2017. The Authors. Published for AMER ABRA by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.

Economic Security of Regions

2018 ◽  
Vol 8 (8) ◽  
pp. 2568 ◽  
Author(s):  
Marina N. RUDENKO
Keyword(s):  
Statistical Analysis ◽  
Swot Analysis ◽  
Negative Influence ◽  
Economic Security ◽  
Important Place ◽  
Factors Affecting ◽  
Social Sphere ◽  
Russian Economy ◽  
Perm Krai ◽  
Negative Factors

The urgency of the problem under investigation is caused by the need of regions (subjects of the Russian Federation) for economic security. In the conditions of the crisis, the recession in the economy, social problems in the regions of Russia are aggravated, the standard of living of the population is decreasing, and the tension in the labor market is increasing. To mitigate the negative factors affecting this, it is necessary to take decisions aimed at improving the structure of the regional economy, supporting certain industries, spheres, and attracting investments. This is all to ensure economic security. The purpose of the article is to develop recommendations of the region (subject of the federation) on the example of Perm Krai to ensure economic security. The leading methods of research of this problem are the analysis of theoretical sources, statistical analysis, comparison, SWOT-analysis. Statistical analysis occupies the most important place, since data on the economy state and social sphere of the region can be directly obtained from statistical databases. This article presents the main approaches to the concept of economic security in the region, defines the components of economic security, and compares the economic security of Perm Krai and a number of other regions. It was concluded that the economic security of Perm Krai is rather weak, which is connected with the influence of negative factors of the external environment (typical for the entire Russian economy in recent years), with unresolved problems in the region, which increase the negative influence of environmental factors. The materials of the article are of practical value for the organization of public administration at the regional level (at the level of the subject of the federation in Russia or at the level of regions in other countries), for making decisions related to ensuring the economic security of the region.

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