Kinetics of Reactions of 8-Quinolinol and Acetate with Hydroxyaluminum Species in Aqueous Solutions. 2. Initial Solid Phases

1971 ◽  
Vol 49 (10) ◽  
pp. 1688-1690 ◽  
Author(s):  
R. C. Turner
Keyword(s):  
Aqueous Solutions ◽  
Solid Phase ◽  
The Other ◽  
Rate Determining Step ◽  
Rate Of Dissolution ◽  
Effects Of Ph ◽  
Solid Phases ◽  
The One ◽  
Kinetics Of ◽  
As If

The effects of pH and concentrations of 8-quinolinol and acetate on the rate of release of mononuclear Al from an initial solid phase formed by the rapid precipitation of mononuclear Al cations and from another formed by the precipitation of polynuclear hydroxyaluminum cations with NaOH were determined. With the solid formed by precipitation of the mononuclear Al cations, the rate was governed by the rate of dissolution of the solid. Dissolution occurred because the solution was undersaturated with respect to the solid. With the solid formed by the precipitation of the polynuclear cations the reaction behaved as if the rate determining step in the release of the mononuclear Al was the decomposition of the polynuclear cations after dissolution of the solid, indicating that the polynuclear cations persisted as such in the precipitate.Independent evidence that the two initial solid phases were entirely different was indicated by the fact that the one formed by precipitation of mononuclear cations developed into gibbsite in a few days whereas the other did not.

scholarly journals On some circumstances relating to the economy of bees

1833 ◽  
Vol 2 ◽  
pp. 346-347
Keyword(s):  
Royal Society ◽  
The State ◽  
The Other ◽  
Compact Mass ◽  
Whole Number ◽  
Permanent Settlement ◽  
The One ◽  
Hollow Tree ◽  
As If

The author had already stated, in a former communication to the Royal Society, his having noticed that for several days previous to the settling of a swarm of bees in the cavity of a hollow tree adapted to their reception, a considerable number of these insects were incessantly employed in examining the state of the tree, and particularly of every dead knot above the cavity which appeared likely to admit water. He has since had an opportunity of observing that the bees who performed this task of inspection, instead of being the same individuals as he had formerly supposed, were in fact a continual succession of different bees; the whole number in the course of three days being such as to warrant the inference that not a single labouring bee ever emigrates in a swarm without having seen its proposed future habitation. He finds that the same applies not only to the place of permanent settlement, but also to that where the bees rest temporarily, soon after swarming, in order to collect their numbers. The swarms, which were the subjects of Mr. Knight’s experiments, showed a remarkable disposition to unite under the same queen. On one occasion a swarm, which had arisen from one of his hives, settled upon a bush at a distance of about twenty-five yards; but instead of collecting together into a compact mass, as they usually do, they remained thinly dispersed for nearly half an hour; after which, as if tired of waiting, they singly, one after the other, and not in obedience to any signal, arose and returned home. The next morning a swarm issued from a neighbouring hive, and proceeded to the same bush upon which the other bees had settled on the preceding day; collecting themselves into a mass, as they usually do when their queen is present. In a few minutes afterwards a very large assemblage of bees rushed from the hive from which the former swarm had issued, and proceeded directly to the one which had just settled, and instantly united with them. The author is led from these and other facts to conclude that such unions of swarms are generally, if not always, the result of previous concert and arrangement.

Arseny Tarkosvky’s small cycles: The artistic history and principles of text preparation

2021 ◽  
pp. 151-165
Author(s):  
D. P. Bak
Keyword(s):  
Original Poetry ◽  
The Other ◽  
Scholarly Publications ◽  
The One ◽  
As If

The article analyses the publication problem of A. Tarkovsky’s so-called ‘small cycles’ — poems sharing a common storyline and theme, which were not, however, published as poetic cycles in Tarkovsky’s lifetime, even though he had planned them as such and leſt respective handwritten collections. According to the critic, Tarkovsky created these poetic compilations irrespective of the actual possibility (or impossibility) of their publication. His entire experience of ‘living in literature,’ long years of failed attempts to publish abook of original poetry, the type of forbidding censorship policy prevailing at the time — everything indicated that one should better give up attempts toget published in the heavily supervised literary sector. Bak concludes that a publisher of Tarkovsky’s works should focus on reconstruction of the corpus that was not meant for censors, as the two compilations of his lyric oeuvre— the one prepared for publication and the other preserved in manuscripts only— exist in a sort of ‘alternative complementation,’ as if in parallel to each other, and should both be considered for preparation of scholarly publications.

Configuration of Quadrivalent Atoms

1929 ◽  
Vol 25 (2) ◽  
pp. 219-221
Author(s):  
T. M. Lowry
Keyword(s):  
The Other ◽  
Tetrahedral Configuration ◽  
X Ray ◽  
Metallic Atom ◽  
Other Hand ◽  
Function Change ◽  
The One ◽  
Image Position ◽  
Octahedral Configuration ◽  
As If

Two alternative views have been expressed in regard to the configuration of quadrivalent atoms. On the one hand le Bel and van't Hoff assigned to quadrivalent carbon a tetrahedral configuration, which has since been confirmed by the X-ray analysis of the diamond. On the other hand, Werner in 1893 adopted an octahedral configuration for radicals of the type MA6, e.g. inand then suggested that “the molecules [MA4]X2 are incomplete molecules [MA6]X2. The radicals [MA4] result from the octahedrally-conceived radicals [MA6] by loss of two groups A, but with no function-change of the acid residue…. They behave as if the bivalent metallic atom in the centre of the octahedron could no longer bind all six of the groups A and lost two of them leaving behind the fragment [MA4]” (p. 303).

scholarly journals Adipo-Myokines: Two Sides of the Same Coin—Mediators of Inflammation and Mediators of Exercise

2013 ◽  
Vol 2013 ◽  
pp. 1-16 ◽  
Author(s):  
Silja Raschke ◽  
Jürgen Eckel
Keyword(s):  
Skeletal Muscle ◽  
Mrna Level ◽  
Cell Types ◽  
The Other ◽  
Target Tissue ◽  
Beneficial Effects ◽  
Mediators Of Inflammation ◽  
The One ◽  
Two Sides ◽  
Kinetics Of

This review summarizes the current literature regarding the most discussed contraction-regulated moykines like IL-6, IL-15, irisin, BDNF, ANGPTL4, FGF21, myonectin and MCP-1. It is suggested that the term myokine is restricted to proteins secreted from skeletal muscle cells, excluding proteins that are secreted by other cell types in skeletal muscle tissue and excluding proteins which are only described on the mRNA level. Interestingly, many of the contraction-regulated myokines described in the literature are additionally known to be secreted by adipocytes. We termed these proteins adipo-myokines. Within this review, we try to elaborate on the question why pro-inflammatory adipokines on the one hand are upregulated in the obese state, and have beneficial effects after exercise on the other hand. Both, adipokines and myokines do have autocrine effects within their corresponding tissues. In addition, they are involved in an endocrine crosstalk with other tissues. Depending on the extent and the kinetics of adipo-myokines in serum, these molecules seem to have a beneficial or an adverse effect on the target tissue.

Ozonation of bromide-containing drinking waters:a delicate balance between disinfection and bromate formation

2000 ◽  
Vol 41 (7) ◽  
pp. 53-59 ◽  
Author(s):  
U. von Gunten ◽  
U. Pinkernell
Keyword(s):  
Temperature Dependence ◽  
Low Temperatures ◽  
The Other ◽  
Ozone Exposure ◽  
Oh Radicals ◽  
Strong Temperature Dependence ◽  
Control Options ◽  
The One ◽  
Kinetics Of ◽  
Ozonation Process

The occurrence of Cryptosporidium in raw waters and bromate formation during ozonation of bromide-containing waters leads to a difficult optimisation of ozonation processes. On the one hand inactivation of Cryptosporidium requires high ozone exposures, on the other hand under these conditions bromate formation is favored. In order to overcome this problem we need information about (i) the oxidant concentrations (ozone and OH radicals) during an ozonation process, (ii) kinetics of the inactivation of Cryptosporidium, (iii) kinetics and mechanism of bromate formation, and (iv) the reactor hydraulics. The strong temperature dependence of the inactivation of Cryptosporidium which results in a higher ozone exposure (time-integrated action of ozone) at low temperatures makes it more difficult to fulfil disinfection and bromate standards at low temperatures. Underthese conditions control options for bromate formation can be applied. Depressionof pH and addition of ammonia have been selected to be the best options. For a given ozone exposure both measures lead to a reduction of bromate formation in the order of 50%.

The Genesis of Mind

1862 ◽  
Vol 7 (40) ◽  
pp. 461-494 ◽  
Author(s):  
Henry Maudsley
Keyword(s):  
The Other ◽  
Human Being ◽  
Close Resemblance ◽  
Other Hand ◽  
Being There ◽  
The One ◽  
As If

As it has ever been the custom of man to act as if he were eternal, and lavishly to scatter the limited force which he embodies as though the supply were inexhaustible, it produces no unaccustomed surprise to witness the useless expenditure of force which is so frequently made at the present time. It may even, perhaps, be deemed a token of some modesty, that the being, who since his first formation has been continually occupied in metaphysical regions with the investigation of the origin of all things, should be content for a while to amuse himself with physical theories concerning his own origin. That which is to be regretted in the new and comparatively praiseworthy occupation is the old evil of hasty theorizing on the one hand, and on the other hand, the evil, scarcely less ancient, of an impetuous eagerness to demolish any theory, however plausible, which comes athwart a favourite prejudice. What though the anatomist does discover a very close resemblance and very slight differences between the structure of a gorilla and the structure of a human being; there is no need, on that account, that mankind in a feeling of injured dignity should angrily rouse up and disclaim the undesired relationship. Whatever may be said or written, it is quite plain after all that a man is not a gorilla, and that a gorilla is not a man; it is furthermore manifest that gorillas do not breed men now-a-days, and that we have not the shadow of any evidence to guide us in forming; an opinion as to what they may have clone in times past. The negative testimony of Du Chaillu, who says that he searched in vain in the gorilla region for any intermediate race or link between it and man, scarcely adds anything to the conviction of the non-existence of any such link, which has long been universally entertained.*

Two Methodological Worlds Apart? Praises and Critiques from a European Comparativist

2006 ◽  
Vol 14 (3) ◽  
pp. 332-335 ◽  
Author(s):  
Benoît Rihoux
Keyword(s):  
The Other ◽  
Social Scientists ◽  
Social Inquiry ◽  
Other Hand ◽  
The One ◽  
As If

Social scientists who strive to reflect on their research “while they're doing it” (Becker 1998) live in very fortunate times. On the one hand, it seems as if an increasing number of scholars want to do a little more than simply apply ready-made recipes. On the other hand, a few key volumes have recently been published that move beyond ready-made recipes. In my personal top three, I would most probably place Mahoney and Rueschemeyer (2003), George and Bennett (2005), and—last but not least—the volume discussed in this symposium. What distinguishes Rethinking Social Inquiry (RSI) from the two other volumes, in my view, is that it has a broader agenda and hence a broader ambition.

Quantitative Determimatioh of Sulfur, Chlorine, Potassium, Calcium, Scandium and Titanium in Aqueous Solutions by Radioisotopic Excited Fluorescent Spectrometer and by Conventional X-Ray Spectrometer

1970 ◽  
Vol 14 ◽  
pp. 102-126 ◽  
Author(s):  
Frank L. Chan ◽  
W. Barclay Jones
Keyword(s):  
Particle Size ◽  
Aqueous Solutions ◽  
Experimental Results ◽  
The Other ◽  
X Rays ◽  
Helium Atmosphere ◽  
X Ray ◽  
Effect Of Particle Size ◽  
The One

AbstractAn x-ray spectrometer with experimental results is herewith described using a radiosotope source Fe55 having a halflife of 2.6 years. As a result of the disintegration, the managanese x-rays are capable of exciting fluorescent x-rays of such elements as sulfur, chlorine, potassium, calcium, scandium and titanium in aqueous solutions. These elements with the Ka wavelengths ranging from 5.3729 Å to 2.7496 Å may be designated as between the very soft x-rays on the one hand and the hard x-rays on the other. The x-ray spectrometer presently described has achieved a resolution of 136 ev, FWHM.Simultaneously, these elements have also been quantitatively determined by conventional x-ray fluorescent spectrometers. Since one of the spectrometers is designed to operate in vacuum as well as in helium or air, determination of sulfur, potassium and calcium were carried out in vacuum. Determination of chlorine was carried out in a helium atmosphere, Calcium, scandium and titanium were determined in air with an air-path spectrometer.In the present study aqueous solutions containing these elements were used. The use of aqueous solutions has the inherent advantages of being homogeneous and free from effect of particle size.

Drei Phantasiestücke (3)

2017 ◽  
Author(s):  
Seth Brodsky
Keyword(s):  
East Germany ◽  
The Other ◽  
Quarter Century ◽  
Other Hand ◽  
Society Of The Spectacle ◽  
The Media ◽  
The One ◽  
Empty Signifier ◽  
As If ◽  
The Revolution

In the quarter century since the collapse of East Germany, the uncountable reflections that flower the media landscape inevitably turn to music. And when they do, they waffle. There is something untimely, and uncanny, about this waffling. It is as if the tensions structuring music's role in the heady days of the late 1960s were being therapeutically replayed twenty years later: 1968 yet again as the fetish object. On the one hand, music here is the fantasmatic sound of revolution itself, of truth speaking to power, and power falling to pieces under the weight of truth's irrefutable audibility, equal parts libido and righteousness. On the other hand, it is the traumatic reminder of failure, and the disenchanting premise that this “society of the spectacle” was not so powerful after all—that the revolution, in merely appearing, failed to show up. Judging from the examples of Hasselhoff, Rostropovich, and Bernstein, this chapter argues that music seems woven perfectly into a master's discourse: a process of shoring up a sovereign, of suturing itself to an empty signifier, producing a split subject, and precipitating an excessive enjoyment in the form of an object of desire.

CHAPTER XXX

2009 ◽  
Author(s):  
Laurence Sterne
Keyword(s):  
The Other ◽  
The One ◽  
As If

MY uncle Toby and the Corporal had gone on separately with their operations the greatest part of the campaign, and as effectually cut off from all communication of what either the one or the other had been doing, as if they had been separated from...

Sign in / Sign up

Export Citation Format

Share Document