scholarly journals Fenología y potencial ornamental de Euphorbia fulgens Karw. ex Klotzsch en México

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Mónica Pérez-Nicolás ◽  
María Teresa Colinas-León ◽  
Iran Alia-Tejacal ◽  
Margarita Gisela Peña-Ortega
Keyword(s):  
Shelf Life ◽  
Ornamental Plant ◽  
Wild Populations ◽  
Flowering Stage ◽  
Phenological Stages ◽  
Spring Period ◽  
Chemische Industrie ◽  
Full Flowering ◽  
The Aesthetic ◽  
Aesthetic Values

Euphorbia fulgens Karw. ex Klotzsch is a species cultivated as an ornamental plant in Europe. Despite being a native and microendemic species in Mexico, it is not cultivated in this country. The objectives were to evaluate its ornamental potential and describe its phenology under greenhouse conditions. Fifty seeds of three wild populations were sown randomly obtaining 30 individuals. The BBCH (Biologische Bundesanstalt, Bundessortenamt und Chemische Industrie) scale was used to record the phenological stages, and the thermal time was determined as well. Its potential was defined based on aesthetic values and its adaptation for cultivation. Seven main phenological stages were recorded, with the flowering and fruiting stages overlapping during the winter-spring period. The full flowering stage took place 239 days after sowing, accumulating 3,680 ° C day -1. The aesthetic values were arched branches with attractive orange to bright red inflorescences, and easy adaptation to cultivation. The species showed a quality flowering cycle and shelf life of more than fifteen days

Effect of elevation and phenological stages on essential oil composition of Stachys

2017 ◽  
Vol 42 (6) ◽  
Author(s):  
Masomeh Alimohammadi ◽  
Mehrab Yadegari ◽  
Hamze Ali Shirmardi
Keyword(s):  
Essential Oil ◽  
Oil Content ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Flowering Stage ◽  
Natural Habitats ◽  
Phenological Stages ◽  
Methyl Chavicol ◽  
Full Flowering ◽  
Germacrene D

AbstractObjective:Determine the best elevation and phenological stages effects on essential oil content and composition inMaterials and methods:Three phenological stages (vegetative, full flowering and seeding) and three elevation ranges (2500–2700, 2700–2900 and over 2900 m), shoots of plants collected from Kallar mountain as natural habitats from Chaharmahal and Bakhtiari Province. Composition of essential oil detected by GC/MS.Results:The maximum amount of secondary metabolites of β-ocimene, methyl chavicol, germacrene-D, 1,8 cineole and phthalate had measured in vegetative stage and various of elevation ranges. The most essential oil content (0.145%) was obtained in 2700–2900 m and full flowering stage. The most components in full flowering were β-eudesmol, menthol and γ-eudesmol. The most of germacrene-D, levomenol, β-thujene, β-caryophyllene, β-sesquiphellandrene, α-eudesmol and delta-cadinene was achieved in seeding stage.Conclusion:Elevation and phenological stages had significant effect on essential oil of

scholarly journals Essential Oil Composition of Thymus × citriodorus (Pers.) Schreb. at Different Harvest Stages

2017 ◽  
Vol 45 (1) ◽  
pp. 185-189 ◽  
Author(s):  
Ozlem TONCER ◽  
Sengul KARAMAN ◽  
Emel DIRAZ ◽  
Tahsin SOGUT ◽  
Suleyman KIZIL
Keyword(s):  
Essential Oil ◽  
Essential Oil Composition ◽  
Biologically Active ◽  
Bornyl Acetate ◽  
Oil Composition ◽  
Flowering Stage ◽  
Phenological Stages ◽  
Full Flowering ◽  
Total Oil ◽  
Active Substances

Thymus is represented by 39 species (60 taxa) in Turkey and the rate of its endemism is 45% in Turkey. The herb is widely used for several purposes. Its essential oil compositions and biologically active substances are affected by the phenological stages. Therefore, the aim of this study is to evaluate the variations in the essential oil composition of Thymus × citriodorus (Pers.) Schreb. growing in Southeastern Anatolia Region of Turkey at different phenological stages (pre-flowering, full flowering, post flowering). The oils were obtained by hydrodistillation of air-dried samples. The yields of oils (w/w %) at different phenological stages was respectively 2.0% at pre-flowering state, 1.9% at flowering stage, and 1.3% at post-flowering stage. T. × citriodorus was determined mainly by using GC/MS. A total of 21 compounds, representing 93.9% in the pre-flowering stage, 98.8% in the flowering stage and 98.91% in post-flowering of the total oil, were identified. Monoterpene hydrocarbons (terpinolene) and oxygenated monoterpenes (α-terpineol) were observed to have the highest percentage in T. × citriodorus oil. The major compounds of the oil were terpinolene, α- terpineol, linalool, bornyl acetate and borneol. The highest percentage of terpinolene was determined to be 71% in flowering stages.

scholarly journals Can we measure beauty? Computational evaluation of coral reef aesthetics

PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e1390 ◽  
Author(s):  
Andreas F. Haas ◽  
Marine Guibert ◽  
Anja Foerschner ◽  
Tim Co ◽  
Sandi Calhoun ◽  
...  
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Local Population ◽  
Machine Learning Algorithms ◽  
Monitoring Tool ◽  
Photographic Images ◽  
Aesthetic Appearance ◽  
The Aesthetic ◽  
Monitoring Protocols ◽  
Aesthetic Values

The natural beauty of coral reefs attracts millions of tourists worldwide resulting in substantial revenues for the adjoining economies. Although their visual appearance is a pivotal factor attracting humans to coral reefs current monitoring protocols exclusively target biogeochemical parameters, neglecting changes in their aesthetic appearance. Here we introduce a standardized computational approach to assess coral reef environments based on 109 visual features designed to evaluate the aesthetic appearance of art. The main feature groups include color intensity and diversity of the image, relative size, color, and distribution of discernable objects within the image, and texture. Specific coral reef aesthetic values combining all 109 features were calibrated against an established biogeochemical assessment (NCEAS) using machine learning algorithms. These values were generated for ∼2,100 random photographic images collected from 9 coral reef locations exposed to varying levels of anthropogenic influence across 2 ocean systems. Aesthetic values proved accurate predictors of the NCEAS scores (root mean square error < 5 forN≥ 3) and significantly correlated to microbial abundance at each site. This shows that mathematical approaches designed to assess the aesthetic appearance of photographic images can be used as an inexpensive monitoring tool for coral reef ecosystems. It further suggests that human perception of aesthetics is not purely subjective but influenced by inherent reactions towards measurable visual cues. By quantifying aesthetic features of coral reef systems this method provides a cost efficient monitoring tool that targets one of the most important socioeconomic values of coral reefs directly tied to revenue for its local population.

scholarly journals On the centenary of Zygmunt Janiszewski (1888-1920): ideals of mathematical practice and the constitution of continuum theory

2020 ◽  
Vol 8 (18) ◽  
pp. 431-453
Author(s):  
Luis Carlos Arboleda ◽  
Andrés Chaves
Keyword(s):  
Mathematical Practice ◽  
Continuum Theory ◽  
Axiomatic System ◽  
Intellectual Character ◽  
The Social ◽  
Polish School ◽  
The Aesthetic ◽  
Aesthetic Values ◽  
Philosophy Of Mathematical Practice ◽  
Scientific Life

This paper shows the importance of applying a certain approach to the history and philosophy of mathematical practice to the study of Zygmunt Janiszewski's contribution to the topological foundations of Continuum theory. In the first part, a biography of Janiszewski is presented. It emphasizes his role as one of the founders of the Polish School of Mathematics, and the social, political and military facets in which his intellectual character was revealed, as well as the values that guided his academic and scientific life. Kitcher's view of mathematical practice is then adopted to examine the philosophical conceptions and epistemological style of Janiszewski in relation to the construction of the formal axiomatic system of knowledge about the continua. Finally, it is shown the convenience of differentiating in Kitcher's approach, the methods, procedures, techniques and strategies of practice, and the aesthetic values of mathematics. Keywords: Zygmunt Janiszewski; Continuum theory; Philosophy of mathematical practice; Polish school of mathematics.

Perception Based Method for Measuring the Aesthetic Quality of the Urban Environment

2017 ◽  
Vol 42 (2) ◽  
pp. 11-19
Author(s):  
Hourakhsh Ahmad Nia ◽  
Resmiye Alpar Atun ◽  
Rokhsaneh Rahbarianyazd
Keyword(s):  
Urban Environment ◽  
Spatial Configuration ◽  
Human Perception ◽  
Urban Morphology ◽  
Urban Environments ◽  
Human Cognition ◽  
Aesthetic Perception ◽  
Aesthetic Quality ◽  
The Aesthetic ◽  
Aesthetic Values

This study assesses changing aesthetic values and their characteristics in urban environments based on human perception. With this in mind, a model for assessing the aesthetic values of the urban environment based on the three steps of human cognition has been developed to elaborate the user's perception in different urban environments. The results of the survey confirm that by changing urban morphology the aesthetic perception of the environment also changes. The finding of this research opens up a new window for urban planners to assess the aesthetic effects of the elements of urban spatial configuration for future urban development.

Painting, aesthetics of

2018 ◽  
Author(s):  
Robert Hopkins
Keyword(s):  
Picture Plane ◽  
Essential Elements ◽  
Two Dimensional ◽  
Art Forms ◽  
The Aesthetic ◽  
Aesthetic Values ◽  
Dimensional Picture ◽  
Do So ◽  
The Way

Why care about painting as an art? Does it offer to engage our aesthetic interest in ways that other art forms do not, or does it merely reproduce the aesthetic satisfactions they provide? Most paintings involve both marks on a surface, and something represented by those marks. Some attempts to say what is distinctive about painting concentrate on the former feature, understanding the art as an exploration of the two-dimensional picture plane. Others concentrate on the representational aspect, seeking to find something special about the things painting can represent, or the way in which it achieves this. The most promising approaches acknowledge both aspects, and do so as essential elements in the experiencewe have of painting. One such approach turns on the idea that the configurational aspect ‘inflects’ the representational, so that what we see in the picture itself somehow involves the marks from which the painting is composed. Another sees painting as offering aesthetic values found elsewhere, but in a distinctive form. Taking seriously the idea of our experience of painting also helps us to say something about a set of paintings we are otherwise in danger of ignoring - abstract works.

Painting, aesthetics of

2018 ◽  
Author(s):  
Robert Hopkins
Keyword(s):  
Picture Plane ◽  
Essential Elements ◽  
Two Dimensional ◽  
Art Forms ◽  
The Aesthetic ◽  
Aesthetic Values ◽  
Dimensional Picture ◽  
The Way

Why care about painting as an art? Does it offer to engage our aesthetic interest in ways that other art forms do not, or does it merely reproduce the aesthetic satisfactions they provide? Most paintings involve both marks on a surface, and something represented by those marks. Some attempts to say what is distinctive about painting concentrate on the former feature, understanding the art as an exploration of the two-dimensional picture plane. Others concentrate on the representational aspect, seeking to find something special about the things painting can represent, or the way in which it achieves this. The most promising approach acknowledges both aspects, and does so as essential elements in the experience we have of painting. If successful, this allows us to see painting as offering aesthetic values found elsewhere, but in a distinctive form. It also helps us to say something about a set of paintings we are otherwise in danger of ignoring – abstract works.

scholarly journals The Influence of Cultivars and Phenological Phases on the Accumulation of Nevadensin and Salvigenin in Basil {Ocimum basilicum)

2015 ◽  
Vol 10 (10) ◽  
pp. 1934578X1501001
Author(s):  
Botond Bernhardt ◽  
Jenő Bernáth ◽  
Attila Gere ◽  
Zoltán Kókai ◽  
Bonifác Komáromi ◽  
...  
Keyword(s):  
Ocimum Basilicum ◽  
Gene Bank ◽  
Pairwise Comparisons ◽  
Harvest Time ◽  
Flowering Stage ◽  
Accumulation Pattern ◽  
Significance Level ◽  
Full Flowering ◽  
Harvest Timing ◽  
Phenological Phases

According to the earlier literature the optimum harvest time for basil is at the full flowering stage if accumulation of essential oil is taken into account. In this research we have investigated our gene-bank stored basil accessions to determine whether the harvest timing is variety specific or not considering their flavonoid accumulation pattern. In our work we have determined by HPLC the content of two main flavonoid compounds, salvigenin and nevadensin, of eight different gene bank accessions from 2013 of Ocimum basilicum L. Data were analysed with the nonparametric Kruskal-Wallis test. Multiple pairwise comparisons were made using the Conover-Iman procedure where the significance level was 5%. We have observed that the optimum harvest time is at the full flowering stage in the case of accessions ‘Genovese’ and ‘Piros’, but this was not verified for the others. The result of our experiment has shown that the maximum salvigenin and nevadensin content was detected both at the full- and early flowering period. Almost in all phenological phases the accession ‘M. Grimes’ accumulated the highest level of nevadensin, while accession ‘Lengyel’ produced the lowest results in all phenological phases. Generally it could be observed that compared with nevadensin more salvigenin is accumulated, and it is independent of the phenological phases. In the case of salvigenin, ‘M. Grimes’ accession produced the largest quantity and accession ‘Dark Opal’ showed the lowest values. Our analyses demonstrated that harvest at different phenological phases may result in different amounts of active agents according to the cultivar.

Climate Change Law: Encounters with Aesthetics and Art

Climate Law ◽  
2018 ◽  
Vol 8 (3-4) ◽  
pp. 279-319
Author(s):  
Benjamin J. Richardson
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Climate Mitigation ◽  
Mitigation And Adaptation ◽  
Law And Policy ◽  
The Social ◽  
Political Struggles ◽  
The Aesthetic ◽  
Aesthetic Values

Climate change has multifaceted aesthetic dimensions of legal significance. Global warming alters the aesthetic properties of nature, and further aesthetic changes are precipitated by climate mitigation and adaptation responses of impacted societies. The social and political struggles to influence climate change law are also influenced by aesthetics, as environmental activists and artists collaborate to influence public opinion, while conversely the business sector through its marketing and other aesthetic communications tries to persuade consumers of its climate-friendly practices to forestall serious action on global warming. This article distils and analyses these patterns in forging a novel account of the role of aesthetics in climate change law and policy, and it makes conclusions on how this field of law should consider aesthetic values through ‘curatorial’ guidance.

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