scholarly journals Reagents Activity in a Copper Droplets / Post-Processing Slag Suspension

2016 ◽  
Vol 16 (3) ◽  
pp. 147-150
Author(s):  
W. Wołczyński ◽  
J. Karwan-Baczewska ◽  
K. Najman ◽  
A.W. Bydałek

Abstract The suspension of the copper droplets in the post-processing slag taken directly from the KGHM-Polska Miedź S.A. Factory (from the direct-to-blister technology as performed in the flash furnace) was subjected to the special treatment with the use of the one of the typical industrial reagent and with the complex reagent newly patented by the authors. This treatment was performed in the BOLMET S.A. Company in the semi-industrial conditions. The result of the CaCO3, and Na2CO3 chemicals influence on the coagulation and subsequent sedimentation of copper droplets on the crucible bottom were subjected to comparison with the sedimentation forced by the mentioned complex reagent. The industrial chemicals promoted the agglomeration of copper droplets but the coagulation was arrested / blocked by the formation of the lead envelope. Therefore, buoyancy force forced the motion of the partially coagulated copper droplets towards the liquid slag surface rather than sedimentation on the crucible bottom. On the other hand, the complex reagent was able to influence the mechanical equilibrium between copper droplets and some particles of the liquid slag as well as improve the slag viscosity. Finally, the copper droplets coagulated successfully and generally, were subjected to a settlement on the crucible bottom as desired / requested.

2020 ◽  
Vol 35 (1) ◽  
pp. 27-39
Author(s):  
Narayanaswamy Bangalore Thimmadasiah ◽  
Tushar Kant Joshi

AbstractChildren contribute substantially to the burden of disease in India. Most common are problems with outdoor and household air pollution, with solutions not immediately apparent or implementable. Children are also often exposed to heavy metals, industrial chemicals and pesticides. Despite advances in some regions, many children still do not have adequate access to clean water and improved sanitation. Infectious diseases remain a problem, especially for children living in poverty. The children of these regions are now facing the dual problems of undernutrition and stunting on the one hand, and overnutrition and obesity on the other.


Author(s):  
Hilary Charlesworth

This chapter offers an overview of UN approaches to women’s lives in legal instruments. It begins by describing the engagement of women’s organizations with international institutions from the start of the twentieth century, particularly the League of Nations. It then moves to UN treaties dealing with women. Its focus is the major UN treaty in this area, the 1979 Convention on the Elimination of All Forms of Discrimination Against Women (CEDAW), and the work of its monitoring body, the Committee on the Elimination of Discrimination against Women (. The chapter also describes the extensive reservations states parties have entered to the Convention. It discusses the different accounts of nondiscrimination and equality that emerge in UN treaties. The international sphere illustrates the paradox for feminists of, on the one hand, insisting that differences between women and men should be irrelevant in claiming political rights; while, on the other hand, acting in the name of the category of women, thus bolstering the idea of difference. One strand of provisions in UN treaties aims to eradicate differences in the treatment of women, compared to men. Another strand has sought to recognize the particularity of women’s lives, calling for special treatment and often endorsing a rather limited notion of womanhood in the process. These two strands coexist and are regularly included in the same treaty, even though they can be in normative tension.


2019 ◽  
Vol 43 (4) ◽  
pp. 712-725
Author(s):  
Blaire A French

The call to read Chronicles ‘midrashically’ in Leviticus Rabbah 1.3 and Ruth Rabbah 2.1 challenges the contemporary understanding of intertextuality in the early Rabbis’ interpretation of Scripture. David Stern, James Kugel, and others claim that the sages considered each word of the Bible to be equal, regardless of who wrote it or when. The Rabbis’ insistence, however, that Chronicles receive special treatment contradicts this assertion. This article argues that Chronicles’ late date of composition had a dual effect. On the one hand, Chronicles’ lateness reduced its authority and led the Rabbis to give greater weight to the words of the Primary History in their intertextual readings. On the other hand, Chronicles’ retelling of the past provided a biblical warrant for the Rabbis’ own reshaping of tradition.


Author(s):  
Ewan Morris

Consider these statements. On the one hand: '[H]e did not agree with flying the tino rangatiratanga flag because it argued the case of Maori sovereignty, when the Treaty was all about being equal citizens'. 'Maori enjoyed equal citizenship and did not need special treatment, either by having special Maori seats or by having a separate Maori flag fly above public venues.' 'Kiwis should come under a single flag in public places - the current ensign of New Zealand.' On the other hand: 'I can see no particular reason why we wouldn't fly a flag off the Auckland Harbour Bridge and indeed off other prominent government buildings, namely Parliament . . . We are flying a Maori flag, as just another small symbolic step forward in the partnership that was the treaty . . . New Zealanders have a sense of pride that we are doing well in race relations, that is just another step in the partnership'.


2004 ◽  
Vol 3 (3) ◽  
pp. 75-80
Author(s):  
L. Yu. Chernikova ◽  
I. D. Yevtushenko ◽  
A. V. Grishin

Practice of treatment standard application experiences the certain difficulties. On the one hand, the most treatment standards lay on insufficient economical base, on the other hand, the limitation of health protection in bankroll leads to the insufficient treatment efficiency.An analysis of diagnostic study costs in Tomsk special treatment-and-prophylactic institutions has been made on the example of inflammatory pelvis minor organ diseases.The results of the investigation have shown that the character of diagnostic study of patients with inflammatory pelvis minor organ diseases differed significantly from the treatment standard. At the same time this fact defines not only the necessity of expense increase for diagnostic study but, first of all, the necessity of changes of diagnostic study structure that has been proved by modern pharmaeconomical methods.


1989 ◽  
Vol 111 (4) ◽  
pp. 361-368 ◽  
Author(s):  
H. R. Kivisild ◽  
D. Blanchet ◽  
C. R. Revill

This paper shows that ice interaction forces and energies can be related to the characteristics of ice such as strength, stiffness and rheological properties on the one hand, and to the parameters of the impact such as impact velocity, confinement and size of the contact area on the other hand. Mohr-Coulomb relationships are used to evaluate quasi-static loads. Initiation of cracks in ice at the end of the elastic regime is part of this process. Once initiated, the cracks in the ice in their turn affect pressures at ultimate failure of ice. This process has been related to the size of the loaded area by using fracture mechanics. Dependence on strain rate has been applied. The direct effect of collision speed has received special treatment.


1975 ◽  
Vol 26 ◽  
pp. 395-407
Author(s):  
S. Henriksen

The first question to be answered, in seeking coordinate systems for geodynamics, is: what is geodynamics? The answer is, of course, that geodynamics is that part of geophysics which is concerned with movements of the Earth, as opposed to geostatics which is the physics of the stationary Earth. But as far as we know, there is no stationary Earth – epur sic monere. So geodynamics is actually coextensive with geophysics, and coordinate systems suitable for the one should be suitable for the other. At the present time, there are not many coordinate systems, if any, that can be identified with a static Earth. Certainly the only coordinate of aeronomic (atmospheric) interest is the height, and this is usually either as geodynamic height or as pressure. In oceanology, the most important coordinate is depth, and this, like heights in the atmosphere, is expressed as metric depth from mean sea level, as geodynamic depth, or as pressure. Only for the earth do we find “static” systems in use, ana even here there is real question as to whether the systems are dynamic or static. So it would seem that our answer to the question, of what kind, of coordinate systems are we seeking, must be that we are looking for the same systems as are used in geophysics, and these systems are dynamic in nature already – that is, their definition involvestime.


Author(s):  
Stefan Krause ◽  
Markus Appel

Abstract. Two experiments examined the influence of stories on recipients’ self-perceptions. Extending prior theory and research, our focus was on assimilation effects (i.e., changes in self-perception in line with a protagonist’s traits) as well as on contrast effects (i.e., changes in self-perception in contrast to a protagonist’s traits). In Experiment 1 ( N = 113), implicit and explicit conscientiousness were assessed after participants read a story about either a diligent or a negligent student. Moderation analyses showed that highly transported participants and participants with lower counterarguing scores assimilate the depicted traits of a story protagonist, as indicated by explicit, self-reported conscientiousness ratings. Participants, who were more critical toward a story (i.e., higher counterarguing) and with a lower degree of transportation, showed contrast effects. In Experiment 2 ( N = 103), we manipulated transportation and counterarguing, but we could not identify an effect on participants’ self-ascribed level of conscientiousness. A mini meta-analysis across both experiments revealed significant positive overall associations between transportation and counterarguing on the one hand and story-consistent self-reported conscientiousness on the other hand.


2005 ◽  
Vol 44 (03) ◽  
pp. 107-117
Author(s):  
R. G. Meyer ◽  
W. Herr ◽  
A. Helisch ◽  
P. Bartenstein ◽  
I. Buchmann

SummaryThe prognosis of patients with acute myeloid leukaemia (AML) has improved considerably by introduction of aggressive consolidation chemotherapy and haematopoietic stem cell transplantation (SCT). Nevertheless, only 20-30% of patients with AML achieve long-term diseasefree survival after SCT. The most common cause of treatment failure is relapse. Additionally, mortality rates are significantly increased by therapy-related causes such as toxicity of chemotherapy and complications of SCT. Including radioimmunotherapies in the treatment of AML and myelodyplastic syndrome (MDS) allows for the achievement of a pronounced antileukaemic effect for the reduction of relapse rates on the one hand. On the other hand, no increase of acute toxicity and later complications should be induced. These effects are important for the primary reduction of tumour cells as well as for the myeloablative conditioning before SCT.This paper provides a systematic and critical review of the currently used radionuclides and immunoconjugates for the treatment of AML and MDS and summarizes the literature on primary tumour cell reductive radioimmunotherapies on the one hand and conditioning radioimmunotherapies before SCT on the other hand.


2017 ◽  
Vol 47 (188) ◽  
pp. 487-494
Author(s):  
Daniel Mullis

In recent years, political and social conditions have changed dramatically. Many analyses help to capture these dynamics. However, they produce political pessimism: on the one hand there is the image of regression and on the other, a direct link is made between socio-economic decline and the rise of the far-right. To counter these aspects, this article argues that current political events are to be understood less as ‘regression’ but rather as a moment of movement and the return of deep political struggles. Referring to Jacques Ranciere’s political thought, the current conditions can be captured as the ‘end of post-democracy’. This approach changes the perspective on current social dynamics in a productive way. It allows for an emphasis on movement and the recognition of the windows of opportunity for emancipatory struggles.


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