scholarly journals Liquid CO2 Extraction of Jasminum grandiflorum and Comparison with Conventional Processes

2012 ◽  
Vol 7 (1) ◽  
pp. 1934578X1200700
Author(s):  
Om Prakash ◽  
Deeptanjali Sahoo ◽  
Prasant Kumar Rout
Keyword(s):  
Essential Oil ◽  
Free Product ◽  
Polar Compounds ◽  
The Other ◽  
Benzyl Acetate ◽  
Methyl Anthranilate ◽  
Direct Extraction ◽  
Other Hand ◽  
Liquid Co2 ◽  
The Absolute

The concrete (0.35%) of Jasminum grandiflorum L. flowers was prepared by extraction in n-pentane, and the absolute (0.27%) by fractionation of the n-pentane extract (concrete) with cold methanol. Direct extraction of flowers with liquid CO2 gave a relatively fat-free product in 0.26% yield. The liquid CO2 extract was enriched with terpenoids and benzenoids, thus providing the organoleptically accepted product. The major compounds, such as benzyl acetate, ( E,E)-α-farnesene and ( Z)-3-hexenyl benzoate, along with compounds like indole, methyl anthranilate, ( Z)-jasmone, ( Z)-methyl jasmonoate and ( Z)-methyl epi-jasmonoate, are responsible for the high diffusivity of the jasmine fragrance. These compounds have been obtained with improved recoveries in the liquid CO2 extract. On the other hand, the yield of the essential oil was poor (0.05%), and some polar compounds (oxygenated terpenoids) were recovered in less amounts in comparison with either the n-pentane or liquid CO2 extract.

Moderne Ikonen

2009 ◽  
Vol 54 (2) ◽  
pp. 123-143
Author(s):  
Bernadette Collenberg-Plotnikov
Keyword(s):  
Mass Culture ◽  
Visual Experience ◽  
Modern Art ◽  
The Other ◽  
Recent Discussion ◽  
Christian Church ◽  
Other Hand ◽  
The Absolute ◽  
Modern Mass

›Ikonen‹ sind heute nicht mehr nur die Ikonen der christlichen Kirche, sondern vor allem die Ikonen der modernen Massenkultur. Beide Arten von Ikonen werden in der neueren Kunstreflexion aufgegriffen: Kunst gilt entweder, verstanden als Erbin der religiösen Ikone, als Phänomen, das Absolutes in singulärer Weise anschaulich er- fahrbar macht. Oder aber die Kunst gilt umgekehrt lediglich als Klasse in der Welt der säkularen Ikonen. Demgegenüber wird im Beitrag erstens die These vertretenwerden, daß die neuere Kunst sowohl Aspekte transzendenter als auch immanenter Ikonen umfaßt. Zugleich ist es aber, so die zweite These, für unser Kunstverständnis charakteristisch, ein theoretisches Kontrastverhältnis zwischen Kunst und Ikone an- zunehmen. Dieses gründet auf einer spezifischen Reflexivität der Kunst, durch die sie sich von der Ikone beiderlei Art kategorial unterscheidet. Today, the word ›icon‹ usually no longer refers to the icons of the Christian church, but to the icons of the modern mass-culture. Both sorts of icons play a key-role in the recent discussion about art: Either art is supposed to be a descendant of the religious icon, a phenomenon that gives us a singular visual experience of the Absolute. On the other hand, art is supposed to be just one class among others in the wide world of the secular icons. In contrast to these two positions this essay contends that modern art comprehends aspects of transcendent as well as of immanent icons. Furthermore, it argues that at the same time it is characteristic for our notion of art to suppose a contrast between art and icon. This contrast is based on a specific reflectivity of art, which marks a categorical difference between art and both sorts of icons.

scholarly journals Nietzsche’s Dionysos

2017 ◽  
Vol 3 (3) ◽  
pp. 604
Author(s):  
Dieter Mersch
Keyword(s):  
Necessary Conditions ◽  
Central Point ◽  
The Other ◽  
Other Hand ◽  
The Absolute ◽  
The Aesthetic

Nietzsche’s Dionysus, admittedly, represents a direct provocation and an attack on the classical interpretation accepted since Winckelmann, an interpretation that elevates the Apollonian to its central point of focus; Nietzsche’s introduction of another principle to oppose it, rather than representing a genuine invention, in actuality bridges the small gap between Hegel and Hölderlin. If, namely, the Hegelian aesthetic from the very beginning points to Schein and Erscheinung – as necessary conditions of truth, for the truth would not exist if it were not to “superficially appear” (scheinen) and “make its appearance” (erscheinen), writes Hegel – Schein and Erscheinung would still nonetheless be bound up everywhere with the criterium of the absolute; after all, the untruth of the aesthetic rests squarely in the fact that it cannot do other than to draw upon the language of Erscheinung. For Hölderlin, on the other hand, the Dionysian advances to become a metapoetic symbol combining itself – the enigmatic and continually transforming – with the practice of art. Nietzsche follows those very same lines even while giving the metaphor a thoroughly different twist.

scholarly journals Digestion of grass lipids and pigments in the sheep rumen

1974 ◽  
Vol 32 (2) ◽  
pp. 327-340 ◽  
Author(s):  
R. M. C. Dawson ◽  
Norma Hemington
Keyword(s):  
Small Proportion ◽  
Polar Compounds ◽  
The Other ◽  
Chlorophyll Pigments ◽  
Rapid Decomposition ◽  
Other Hand ◽  
Sheep Rumen ◽  
Micro Organisms

1. Digestion of grass lipids and pigments in the rumen of the sheep has been studied during starvation and following the administration of 14C-labelled grass.2. Both galactolipids contained in chloroplasts are rapidly degraded, although mono-galactosyldiglycerides disappear faster than digalactosyldiglycerides. It was concluded that rumen micro-organisms are mainly responsible for this degradation, although grass itself also contains enzymes which can degrade galactolipids.3. Rumen contents can degrade added 14C-labelled mono- and digalactosyldiglycerides in vitro at a rate sufficient to account for the disappearance of galactolipids in the intact rumen. The initial enzyme attack is probably a successive deacylation to give monogalactosylglycerol and digalactosylglycerol.4. Most of the chlorophyll pigments are rapidly converted into phaeophytins by loss of magnesium. A small proportion of chlorophyll a and more of chlorophyll b remains intact even after 24 h starvation. On the other hand, about half the phaeophytin undergoes further rapid decomposition to yield phylloerythrin.5. Although the grass phospholipids are extensively degraded, β-carotenes and many non-polar compounds, e.g. steroids, appear to undergo little change in the rumen.

Reënforcement of Rubber by Fillers

1929 ◽  
Vol 2 (1) ◽  
pp. 21-31
Author(s):  
John T. Blake
Keyword(s):  
Fatty Acids ◽  
Theoretical Basis ◽  
Polar Compounds ◽  
The Other ◽  
Rubber Matrix ◽  
Double Integral ◽  
Other Hand ◽  
Sound Theoretical Basis ◽  
Volume Range

Abstract Wiegand's “Δ A” function, as represented by the double integral of tensile with respect to elongation and volume of a pigment over the base mix, is a practical means of expressing the reënforcing effect of the filler. On the other hand, the volume range over which the bonding of the filler is greater than the strength of the rubber matrix gives a better understanding of the condition of the filler in the rubber. Apparently, the importance of fatty acids and other polar compounds in dispersions can be put on a sound theoretical basis.

scholarly journals Critique of the radical religious paradigm: An epistemological analysis from the principles of Islamic jurisprudence

2021 ◽  
Vol 11 (1) ◽  
pp. 163-184
Author(s):  
Ade Dedi Rohayana ◽  
Muhammad Jauhari Sofi
Keyword(s):  
The Other ◽  
Public Security ◽  
Personal Safety ◽  
Literal Interpretation ◽  
Other Hand ◽  
Global Issue ◽  
Islamic Jurisprudence ◽  
The Absolute ◽  
Epistemological Analysis ◽  
Religious Understanding

One important factor enabling Islamophobia, radicalism has been a global issue endangering personal safety and public security. It is strongly associated with incorrect understanding of religious doctrines. This paper aims to present a critique of the religious paradigm promoted by the radical groups from the principles of Islamic jurisprudence (ushul fiqh) perspective. Using an epistemological analysis to uncover the nature of their religious understanding and its justification, this study argues that the radical religious paradigm is characterized by a monolithic, textual, and rigid interpretation of the sacred texts. According to the radical groups, the sources of Islamic laws or teachings are restricted to only the Qur’an and the hadith, leaving no space for alternative interpretations. They do not give place for ra’yu (reason) in determining the laws or teachings. On the other hand, ushul fiqh perspective maintains that the sources of the Islamic laws or teachings are not restricted to only the two said sources; it also gives place for ra’yu (reason). The sources can also be found in the form of isyarah (signaling) and ruh (spirit) of the Qur’an and the hadith. In this sense, ushul fiqh refuses the literal interpretation proposed by the radical groups since not all of the texts in the Qur’an and the hadith can be understood literally. Taken together, these findings strengthen the idea that incorrect understanding of religious doctrines helps lead to the absolute, puritanical, and intolerant stance towards differences.

scholarly journals Essential Oil of Piper Purusanum C.DC (Piperaceae) and Its Main Sesquiterpenes: Biodefensives Against Malaria and Dengue Vectors, Without Lethal Effect on Non-target Aquatic Fauna

2022 ◽  
Author(s):  
André C. de Oliveira ◽  
Rejane C. Simões ◽  
Carlos A. P. Lima ◽  
Felipe M. A. da Silva ◽  
Sergio M. Nunamura ◽  
...  
Keyword(s):  
Essential Oil ◽  
Lethal Effect ◽  
Mechanisms Of Action ◽  
The Other ◽  
Egg Hatching ◽  
Aquatic Fauna ◽  
Other Hand ◽  
Germacrene D ◽  
Promising Source ◽  
Dengue Vectors

Abstract The mosquitoes vectors of the genus Aedes and Anopheles present resistance to several commercial insecticides, which are also toxic to non-predators targets. On the other hand, essential oils are a promising source of insecticides. Thus, in this work, the essential oil from the leaves of Piper purusanum was characterized by gas chromatography based approaches and evaluated as biodefensive against malaria and dengue vectors. The main compounds of P. purusanum essential oil were β-caryophyllene (57.05%), α-humulene (14.50%) and germacrene D (8.20%). The essential oil inhibited egg hatching (7.6 ± 1.5 to 95.6 ± 4.5%) caused larval death (LC50 from 49.84 to 51.60 ppm) and inhibited the action of acetylcholinesterase (IC50 of 2.29 µg/mL), which can be related to the mechanisms of action. On the other hand, the biological activity of β-caryophyllene, α-humulene and germacrene D were higher than the essential oil. In addition, these sesquiterpenes and essential oil did not show a lethal effect on Toxorhynchites splendens, Anisops bouvieri, Gambusia affinis and Diplonychus indicus (LC50 from 2098.80 to 7707.13 ppm), although D. indicus is more sensible (SI/PSF from 48.56 to 252.02 ppm) to essential oil, representing a natural alternative against these relevant vectors.

Nature and the Dialectic of Nature in Hegel's Objective Idealism

1992 ◽  
Vol 13 (02) ◽  
pp. 30-51 ◽  
Author(s):  
Dieter Wandschneider
Keyword(s):  
Direct Evidence ◽  
German Idealism ◽  
The Self ◽  
The Other ◽  
The Real ◽  
Other Hand ◽  
The Absolute ◽  
Absolute Identity ◽  
The Ideal ◽  
Dialectic Of Nature

When the Ideal is understood as ontologically fundamental within the framework of an idealistic system, and the Real, on the other hand, as derived, then the first and foremost task of a philosophy of this kind is to prove the claimed fundamentally of the Ideal. This is immediately followed by the further demand to also substantiate on this basis the existence of the Real and particularly of natural being. These tasks have been understood and attempts made to solve them in very different ways in German Idealism - about which I cannot go into more detail here. Let me say this much: that Fichte and Schelling, it appears to me, already fail at the first task, ie. neither Fichte nor Schelling really succeeds in substantiating their pretended ideal as an absolute principle of philosophy. Fichte believes he has such a principle in the direct evidence of the self. However, as this is of little use for the foundation of a generally binding philosophy because of its ultimately private character, Fichte already replaces it with the principle of the absolute self already in his first Wissenschaftlehre of 1794. As a construction detached from the concrete self, this of course lacks that original direct certainty from which Fichte started in the first place, in other words: because the construction of an absolute self can no longer refer to direct evidence, it must be substantiated separately, something which Fichte, I believe, nonetheless fails to do. The same criticism can, in my view, be made of Schelling, who ingeniously substitutes constructions for arguments. His early intuition of an absolute identity which simultaneously underlies spirit and nature, remains just as thetic and unproven as that eternal subject on which he based the representation of his system in, for example, the Munich lectures of 1827.

scholarly journals Excitation Dependent Gf-Values and Depth Dependent Microturbulences

1980 ◽  
Vol 51 ◽  
pp. 294-294
Author(s):  
Toshio Hasegawa
Keyword(s):  
Growth Analysis ◽  
Great Part ◽  
The Other ◽  
Depth Dependence ◽  
Other Hand ◽  
Excitation Potential ◽  
Microturbulent Velocity ◽  
The Absolute

AbstractThe velocity of microturbulence is frequently determined from Fe I lines. Unfortunately classical gf-values of this element have excitation dependent errors. In the absolute curve of growth analysis of some F-type stars with new gf-values, the author found that a great part of the depth dependence (i.e. excitation dependence) of microturbulent velocity, which had been derived by many authors with old gf-values, is the consequence of these errors.The errors of old gf-values increased with excitation potential and the errors were compensated by adopting velocities of microturbulence decreasing with excitation potential. On the other hand, gf-values of ionized elements (e.g. Ti II and Fe II) are not changed as much as those of Fe I, accordingly the ionization dependence can also be eliminated.

scholarly journals A New Method for Observational Testing of the Planetary Nebulae Nuclei Evolution

1989 ◽  
Vol 131 ◽  
pp. 539-539
Author(s):  
R. Szczerba
Keyword(s):  
Stellar Evolution ◽  
Planetary Nebulae ◽  
Central Star ◽  
The Other ◽  
New Method ◽  
Evolutionary Status ◽  
Applied Method ◽  
Other Hand ◽  
Visual Magnitude ◽  
The Absolute

Planetary nebulae (PNe) are very useful as a tool for testing the theory of stellar evolution. The most widely applied method in this respect is the Hertzsprung-Russell (H-R) diagram. However, the observed positions of planetary nebulae nuclei (PNNi) on the H-R diagram are subject to large uncertainties, mostly due to inaccurate distances to them. On the other hand, the (absolute visual magnitude, age)-diagram also is not free of this problem. Therefore, an attempt has been done to develop a new method which is distance-independent. For comparison between theory and observations we propose the I (Hell λ 4686) /I(H β) versus log [I(H β, PN)/IC (H β, PNN)] diagram. Both ratios reflect the evolutionary status of the central star and the surrounding nebula. Consequently, such diagram is a valuable tool for studying common evolution of the PNN-PN system.

Hegel’sOffene: Apperception, Absolution and the Absolute

2017 ◽  
Vol 38 (1) ◽  
pp. 171-187
Author(s):  
Joshua Wretzel
Keyword(s):  
The Other ◽  
Phenomenology Of Spirit ◽  
Other Hand ◽  
The Absolute ◽  
Free Thought ◽  
The One

AbstractThis paper offers a limited defence of two seemingly disparate interpretive approaches to free thought in Hegel’s JenaPhenomenology of Spirit. On the one hand, I defend the view of so-called post-Kantian Hegelians, that Kant’s synthetic unity of apperception is central to Hegel’s account of free thinking in thePhenomenology. On the other hand, I argue that the notions ofdas Offenein Heidegger’sVom Wesen der WahrheitandAb-Lösungin his 1930/31 lectures on Hegel’sPhenomenologyare no less crucial to an understanding of free thought in Hegel’s work. I show that absolution is a condition for the possibility ofdas Offene, which is a condition for the possibility of apperception in its reflexive capacity.

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