Material Sources and Model of Salt Formation of Saline Lakes

Author(s):  
Zheng Mianping
Author(s):  
María del Pilar Alvarez ◽  
Eleonora Carol ◽  
Inés Eymard ◽  
Andrés Bilmes ◽  
Daniel Ariztegui

2020 ◽  
Vol 47 (2-3) ◽  
pp. 233-260
Author(s):  
Hilke Thode-Arora

Abstract Between 1895 and 1911, three groups of Samoans traveled to Germany to take part in ethnic shows. There were titled and high-ranking persons in each of the groups. This article explores the recruiting, organizing, and reception of the shows, contextualizing the European and Samoan perspectives, which differed significantly. In addition to written, visual, and material sources in Samoan, New Zealand, and European archives and museums, the research is based on interviews with descendants of the Samoan travelers who could still be traced.


2008 ◽  
Vol 59 (2) ◽  
pp. 129-134
Author(s):  
Ion Teoreanu ◽  
Roxana Lucia Dumitrache ◽  
Stefania Stoleriu

Any change of the raw material sources for glazes, economically, ecologically motivated, and also from the glaze quality point of view, is conditioned by the molecular formula rationalization and by the variation limits of the molecular formula, respectively. The proper glaze compositions are placed within their limit variation intervals with optimized processing and utilization properties. For this purpose, the rationalization criteria and procedures of molecular formulas are summarized in the present paper, as well as the results referring to their rationalization obtained in the authors� previous work. Thus, one starts from a base of raw materials that are selected, usable and also accessible for the design and producing of the glazes. On these bases the groundwork and the design equation for the glaze recipes are developed, exemplified for a single glaze. For an easy access to results, computer programs are used for an easy access to results.


Author(s):  
Ninh The Son ◽  
Abdelsamed I. Elshamymistry

: Genus Erythrina belongs to family Fabaceae, which widely distributed in tropical and subtropical areas, and has been applied in both traditional herbal medicines, and pharmacological uses. Original research articles and publications on overview of alkaloids related to this genus are available, but a supportive systematic review account highlighted phytochemical aspects of other types of secondary metabolites is now insufficient. Utilizing data information from SCI-Finder, Google Scholar, the Web of Science, Scopus, Science Direct, PubMed, Chemical Abstracts, ACS journals, Springer, Taylor Francis, Bentham Science and IOP Science, the reliable material sources of this systematic manuscript paper were obtained from the literature published from 1980s to now. A vast amount of data showed that the non-alkaloidal secondary metabolites obtained from genus Erythrina with various classes of chemical structures. Herein, approximately five hundred constituents were isolated comprising of flavonoids, terpenoids, saponins, phytosterols, phenols, arylbenzofurans, coumarins, alcohols, ceramides, mono-sugars and fatty acid derivatives. It resembles the previously phytochemical reports on the plants of differential genus of family Fabaceae, flavonoids reached to the high amount in plants of genus Erythrina. Numerous biological researches such as anti-microbacteria, anti-cancer, anti-virus using isolated compounds from Erythrina species suggested that secondary metabolites of Erythrina plants are now becoming promising agents for drug developments.


2021 ◽  
Vol 307 (1) ◽  
Author(s):  
Anca M. Şuteu ◽  
Laura Momeu ◽  
Karina P. Battes ◽  
Andreea Baricz ◽  
Adorján Cristea ◽  
...  

2021 ◽  
pp. 1-21
Author(s):  
Hannah V. Mattson

Dedicatory offerings of small colourful objects are often found in pre-Hispanic architectural contexts in the Ancestral Pueblo region of the American Southwest. These deposits are particularly numerous in the roof support pillars of circular ritual structures (kivas) at the site of Pueblo Bonito, Chaco Canyon, which served as the ceremonial hub of the Chacoan regional system between the tenth and twelfth centuries ce. Based on the importance of directionality and colour in traditional Pueblo worldviews, archaeologists speculate that the contents of these radial offerings may likewise reference significant Chacoan cosmographic elements. In this paper, I explore this idea by examining the distribution of colours and materials in kiva pilaster repositories in relation to directional quadrants, prominent landscape features, and raw material sources. I discuss the results in the context of Pueblo cosmology and assemblage theory, arguing that particular colours were polyvalent and relational, deriving their meanings from their positions within interacting and heterogenous assemblages.


2021 ◽  
pp. 0957154X2110141
Author(s):  
Michael Heath ◽  
Max Cooper

This paper examines the berserker, a frenzied warrior attested to in both the written and material sources of medieval Scandinavia, and elucidates the characteristics that define him. It critiques explanations for the phenomenon offered in the existing historiography and whether this can be explained as a psychiatric diagnosis. It concludes that the berserker cannot be simply defined as a culturally bound or other psychiatric syndrome, or accounted for by psychogenic drugs alone. Instead, it proposes that berserk frenzy constituted a transitory dissociative state shared among a small warband steeped in religious/spiritual ideology. In entering this state, the psyche of the berserker was reconstituted in an almost archetypal pattern. Further research is required into this phenomenon in other contexts, including modern conflicts.


Processes ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 590
Author(s):  
Fernando V. Lima ◽  
Gerardo J. Ruiz-Mercado

The growing worldwide demand for energy and resources, combined with the stringent environmental challenges and regulations, means that the efficient, cost-effective, and sustainable use of energy and material sources, including bio-based, has become increasingly important [...]


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