scholarly journals STUDIES REGARDING THE MORPHOLOGY OF HORSE CHESTNUT LEAFMINER΄ S LARVA (Cameraria ohridella Deschka & Dimič)

1970 ◽  
Vol 63 ◽  
Author(s):  
Daniela Pop ◽  
Oana Pop ◽  
G. Cuc ◽  
I. Oltean
Keyword(s):  
Electron Microscope ◽  
Larval Stage ◽  
European Countries ◽  
Aesculus Hippocastanum ◽  
Medium Size ◽  
Horse Chestnut ◽  
Development Stages ◽  
Stage Of Development ◽  
Origin Area

Horse leafminer of ornamental chestnut (Cameraria ohridella Deschka & Dimič) spread in Europe very quickly and produces important damages to species like Aesculus especially to Aesculus hippocastanum L. Science peoples from European countries where this pest is present, were and are concern by all the aspects regarding this pest: origin, area of spread, morphology, biology and fighting. The present paper completes the aspect of morphology of larva by photos of larvae using electron microscope in different development stages, so to can determinate the medium size of larvae in every stage, inclusive aspects regarding the segments characteristics of thorax and abdomen. This characteristics help to determinate the larval stage of development .

scholarly journals Analytical Concentrations of Some Elements in Seeds and Crude Extracts from Aesculus hippocastanum, by ICP-OES Technique

Agronomy ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 47
Author(s):  
Caterina Durante ◽  
Marina Cocchi ◽  
Lisa Lancellotti ◽  
Laura Maletti ◽  
Andrea Marchetti ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Research Work ◽  
Principal Component ◽  
Aesculus Hippocastanum ◽  
Horse Chestnut ◽  
Icp Oes ◽  
Wild Type ◽  
Commercial Sample ◽  
Pure Species ◽  
Crude Extracts

The metal content in some samples of horse chestnut seeds (Aesculus hippocastanum) was monitored over time (years 2016–2019) considering the two most common and representative Mediterranean varieties: the pure species (AHP, which gives white flowers) and a hybrid one (AHH, which gives pink flowers). The selected elemental composition of the samples was determined by applying the Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) technique. Several samples obtained from different preliminary treatments of the peeled seeds were examined, such as: (i) floury samples (wild-type) mineralized with the wet method; (ii) the ashes of both AHP and AHH varieties; (iii) the fraction of total inorganic soluble salts (TISS). Furthermore, the hydroalcoholic crude extracts (as a tincture) were obtained according to the official Pharmacopoeia methods, and the relevant results were compared with those of a commercial sample, an herbal product-food supplement of similar characteristics. The main characteristics of this research work underline that the two botanical varieties give different distinctive characters, due to the Fe content (80.05 vs. 1.42 mg/100 g d.s., for AHP and AHH wild-type flour samples, respectively), along with K, Ca, Mn, Ni and Cu, which are more abundant in the AHP samples. Furthermore, the Principal Component Analysis (PCA) was applied to the experimental dataset in order to classify and discriminate the samples, in relation to their similar botanical origin, but different for the color of the bloom. These results can be useful for the traceability of raw materials potentially intended for the production of auxiliary systems of pharmacological interest.

Guignardia aesculi. [Distribution map].

1995 ◽  
Author(s):  
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Aesculus Hippocastanum ◽  
Horse Chestnut ◽  
Distribution Map ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Guignardia aesculi (Peck) V.B. Stewart. Hosts: horse chestnut (Aesculus hippocastanum) and other Aesculus spp. Information is given on the geographical distribution in EUROPE, Austria, Belgium, France, Germany, Italy, Netherlands, Portugal, Romania, Switzerland, UK, Yugoslavia, NORTH AMERICA, Canada, USA.

Isolation and identification of nystose from seeds of the horse chestnut (aesculus hippocastanum L.)

1972 ◽  
Vol 25 (2) ◽  
pp. 293-297 ◽  
Author(s):  
J.P. Kamerling ◽  
J.F.G. Vliegenthart ◽  
W. Kahl ◽  
A. Roszkowski ◽  
A. Zurowska
Keyword(s):  
Aesculus Hippocastanum ◽  
Horse Chestnut ◽  
Isolation And Identification

L'Etat et les femmes en Belgique (fin XIXe - début du XXe siècle) : Propositions pour un modèle d'analyse

Res Publica ◽  
1986 ◽  
Vol 28 (1) ◽  
pp. 139-158
Author(s):  
Pascale Delfosse
Keyword(s):  
19Th Century ◽  
European Countries ◽  
Political Rights ◽  
Stage Of Development ◽  
The 19Th Century

Throughout the 19th. century and at the beginning of the 20th various European states, including those of Britain, Germany, France and Belgium, undertook fairly similar measures affecting women. These had a bearing on their civic status, political rights and rights at work.The aim of this study is to seek a pattern of these farms of intervention. Though the case of Belgium is used to illustrate this proposed pattern, it can be held valid for other European countries, despite slight differences in their application or the fact that these steps took place at varying dates according to the precise stage of development of the countries concerned.

ELECTRON MICROSCOPIC STUDY OF POPULATIONS OF YEAST-LIKE FUNGI CANDIDA ALBICANS

2021 ◽  
Vol 1 (4) ◽  
pp. 459-467
Author(s):  
Inna B. Pavlova ◽  
◽  
Anna Yu. Arsenyuk ◽  
Daria A. Bannikova ◽  
Dmitry V. Gruznov ◽  
...  
Keyword(s):  
Candida Albicans ◽  
Electron Microscope ◽  
Museum Collection ◽  
Electron Microscopic ◽  
Membrane Filters ◽  
Stage Of Development ◽  
Development Cycle ◽  
Phases Of Development ◽  
Bacteria And Fungi ◽  
Millipore Membrane

The article presents the results of electron microscopic investigations of populations of pathogenic Candida albicans № 138 from the museum collection. The morphology of the fungus, its ultrastructure and phases of development in the population were studied. The methods developed at VNIIVSGE for growing bacteria and fungi on the surfaces of Millipore membrane filters without disturbing the architectonics of populations were used in research. The preparations were examined with electron microscope Hitachi 800 (Japan) with two systems: transmission and scanning. At large magnifications, the features of the ultrastructure of Candida albicans cells were studied. It was found that in addition to budding, Candida albicans has a survival strategy in the form of the formation of small blastospore cells, the structure of which is visible only with the use of a scanning electron microscope. The forms, sizes and localization of blastospores with their own development cycle have been studied. The morphology of pseudogyphs, which play an important role in the existence and survival of fungi population, has been studied. The formation of biofilms at a certain stage of development of Candida albicans population was revealed.

scholarly journals An Analytical Model of Tourist Destination Development and Characteristics of the Development Stages: Example of the Island of Bornholm

2019 ◽  
Vol 11 (24) ◽  
pp. 6989
Author(s):  
Adam R. Szromek
Keyword(s):  
Sustainable Development ◽  
Life Cycle ◽  
Business Models ◽  
Logistic Function ◽  
Tourist Industry ◽  
Tourist Destination ◽  
Tourist Attractions ◽  
Development Stages ◽  
Stage Of Development ◽  
The 1960S

This paper presents the basis of the tourism area life cycle (TALC) concept and its extension in the context of the implementation of sustainable development practices in the tourist business model. The author uses the logistic function to determine the level of tourist absorption and capacity. The empirical basis of the methods used was statistics on the development of the tourist industry on Bornholm. The objective of the paper is to determine the stage of development of the tourist area of Bornholm and the consequences of this stage for business models of tourist enterprises functioning there. The results of the analysis indicate that the range of tourist absorption was reached in the 1960s–1970s, and that it is currently getting closer to the upper threshold of that range. Tourism on Bornholm, in line with the TALC concept, is currently in the stabilization stage. Future tourist trends on Bornholm depend on many factors; however, if tourist development goes into the decline stage, the offered products may require transformation, in terms of both transport and the form and availability of tourist attractions. Perhaps this will involve a total transformation of the island into a facility with a specific entertainment, leisure, or business profile. The listed solutions will require entrepreneurs to react within the scope of a transformation of their business models into sustainable models of tourist business.

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