scholarly journals The difference between Sand and Pozzolana

1913 ◽  
Vol 3 ◽  
pp. 197-203 ◽  
Author(s):  
C. Densmore Curtis

In spite of the amount which recent publications have added to our knowledge of Roman building methods and materials, there is still some inaccuracy to be noted in the use of terms due very often to a misconception of the chemical constituents of the materials in question. In the present article will be discussed the confusion which still exists between the words sand and pozzolana. In Daremberg and Saglio, s.v. arena, Guillaume states that in the composition of hydraulic cements, “le sable fossile, noir, blanc ou rouge preféré par Vitruve, est probablement la pouzzolane.” In the recent articles by Miss Van Deman on Roman construction, one finds frequently the term pozzolana-arena, and the statement is made that “mortar is composed of pozzolana, which is called by Vitruvius arena fossicia, and lime.” In the new translation of Vitruvius, by J. Prestel, while the word pulvis is correctly translated in the text as “eine staubartige Erdmasse,” in the notes pulvis is translated as “sandreiche Erde.” Moreover, further on in the text, this same pulvis is described as a kind of sand, “Sandart.” Finally may be mentioned the reference in Delbrück's Hellenistische Bauten in Latium where it is stated that in the construction of opus caementicium, the Romans employed a “sharp volcanic sand.” This I shall hope to show to be a contradiction of terms, as “sharp” sand has nothing to do with volcanic activity.

2021 ◽  
Vol 2 (4) ◽  
pp. 91-101
Author(s):  
Saleha Ilhaam

The term strategic essentialism, coined by Spivak, is generally understood as “a political strategy whereby differences (within Group) are temporarily downplayed, and unity assumed for the sake of achieving political goals.” On the other hand, essentialism focuses that everything in this world has an intrinsic and immutable essence of its own. The adaption of a particular “nature” of one group of people by way of sexism, culturalization, and ethnification is strongly linked to the idea of essentialism. Mulk Raj Anand’s Bakha is dictated as an outcast by the institutionalized hierarchy of caste practice. He is essentialized as an untouchable by attributing to him the characteristic of dirt and filth. However, unlike other untouchables, Bakha can apprehend the difference between the cultured and uncultured, dirt and cleanliness. Via an analysis of Anand’s “Untouchable,” the present article aims to bring to the forefront the horrid destruction of the individual self that stems from misrepresentations of personality. Through strategic essentialism, it unravels Bakha’s contrasting nature as opposed to his pariah class, defied by his remarkable inner character and etiquette. The term condemns the essentialist categories of human existence. It has been applied to decontextualize and deconstruct the inaccurately essentialized identity of Bakha, which has made him a part of the group he does not actually belong to.


2012 ◽  
Vol 01 (08) ◽  
pp. 23-28
Author(s):  
Mher Mushtaq Hussain ◽  
Ahmad Tisman Pasha

Insurance in Islam is essentially a concept of mutual help. Insurance business under conventional system is based on uncertainty, which is prohibited in Islamic society under Islamic principles. So there is need to clear the difference between the conventional insurance and the Islamic insurance. A rich literature also describes such differences but the present article addresses the differences based on conceptual and operational framework.


2014 ◽  
Vol 8 (2) ◽  
Author(s):  
Simone Elisabeth Lang

AbstractIn describing the position of the narrator, research in literary studies generally follows Gérard Genette’s pioneering theory of narrative in distinguishing between the homo- and heterodiegetic type of narrator. This categorization is not sufficient to allow the position of the narrator to be described properly. The different ways in which the terms are used in literary studies reveal a shortcoming in the distinction behind them. Even in Genette’s work, there is a contradiction between the definition and the names of the two categories: Genette defines homo- and heterodiegesis with reference to the narrator’s presence in the narrated story, whereas he elsewhere states that the diegesis (in the sense of FrenchThe present article aims to do just that, starting from a theoretical standpoint. Thus, the different types of narrator that are possible are sketched in outline, and then explained with the help of examples.I begin by exposing the problems that result from using the terms in Genette’s manner (1), in order then to develop a list of possible narratorial standpoints based on the one hand on the involvement of the narratorial instance in the narrated world and on the other on its involvement in the story. By establishing separation of the two aspects as a ground rule in this way, a number of misunderstandings that are due to the varied ways in which the terminology has been used to date can be overcome.There follows a description of those cases that are unambiguously hetero- and homodiegetic (2), after which the problematic cases are considered (3), yielding the different types of homodiegetic narration that are possible. This latter set of distinctions will, like the others, shed light on the contours of the different narratorial positions and thus be capable of being put profitably into practice in textual interpretation. Accordingly, what is suggested is a way of using the terms that is first unambiguous and second beneficial to the interpretation of works, thus doing justice to the heuristic importance of narratology (see Kindt/Müller 2003; Stanzel 2002, 19).Thus, whereas the concept of diegesis provides the foundation for a distinction based on an ontological criterion that divides homo- and heterodiegesis from each other, the relationship between story and narrator is used to describe various types of homodiegetic narration. In the process, there come to light two types that are distinguished from each other by involvement in events (›homodiegetic, in the story‹ and ›homodiegetic, not in the story‹ narrators). If the narrator is not involved in events, the question arises of whether it would in principle have been possible for him to be involved in events, which is the norm with ›homodiegetic, not in the story‹ narrators, or whether a physical impossibility is the reason for his lack of involvement in the story. A special case of the ›homodiegetic, not in the story‹ narrator can be derived from this: peridiegetic narration: whereas narratorial instances of the ›homodiegetic, in the story‹ and ›homodiegetic, not in the story‹ types could in principle have been involved in the action and those of the ›homodiegetic, in the story‹ type actually were, peridiegetic narrators are marked by the fact that they cannot have been involved in the events.In summary, it will be shown that the concept of homodiegesis – in particular in the form in which it has previously been used, where links with the action and appearance in the story were not kept distinct – is in effect an umbrella term that brings together a number of possible forms. There is a prominent distinction between the ›homodiegetic, in the story‹ and the ›homodiegetic, not in the story‹ types of narrator (these types are represented in the present article by the old lawyer in Leo Perutz’s »The Beaming Moon« and the narrator who is a friend of Nathanael in E. T. A. Hoffmann’s »Sandman« respectively). The different degrees of homodiegetic narrator, which have often been mentioned in previous research and are defined by the strength of the character’s presence in the narrated world (from an uninvolved witness to an autodiegetic protagonist), are also to be situated between these two poles.It will also be shown in the process that the case of the narrator who is, for reasons of physical difference, not involved in events (the peridiegetic narrator) should be treated as a form of homodiegesis (for instance the schoolmaster in Theodor Storm’s


Ramus ◽  
1992 ◽  
Vol 21 (02) ◽  
pp. 156-186 ◽  
Author(s):  
Apostolos N. Athanassakis

The concept of Homeric or simply Greek honour is not as easy to comprehend as is commonly assumed. Basically it is a system of values stemming from the belief that no harm done to self, kinsman, friend or property should remain uncompensated or unavenged. In a way, what is subsumed under the term honour is an awareness that the higher one bids the higher one is. In the present article the English word ‘honour’ is only a code word for the various fundamentals of life that belong to the semantic compass of Homerictimē. The word ‘cattle’ is also a code word for livestock, especially bovine animals as well as sheep and goats. Honour is not much talked about these days, and many educated people are familiar with some of its aspects mostly through the works of cultural anthropologists who, it seems, have to go to the far corners of the earth to study it. Yet, both honour and the price for honour are ubiquitous in our modern world. The difference is that the state is the keeper of every citizen's honour and as such it regulates punishment for offence to collective or individual honour and, through its courts, decides the material price that must be paid in compensation for real or even intended harm.


Filomat ◽  
2020 ◽  
Vol 34 (10) ◽  
pp. 3311-3318
Author(s):  
Danyal Soybaş ◽  
Neha Malik

The approximation of difference of two linear positive operators having different basis functions is discussed in the present article. The quantitative estimates in terms of weighted modulus of continuity for the difference of Lupa? operators and the classical ones are obtained, viz. Lupa? and Baskakov operators, Lupa? and Sz?sz operators, Lupa? and Baskakov-Kantorovich operators, Lupa? and Sz?sz-Kantorovich operators.


Vox Patrum ◽  
2012 ◽  
Vol 58 ◽  
pp. 181-199
Author(s):  
Sławomir Bralewski

Francis Dvornik has expressed the view that, in the Eastern part of the Empire, the principle of accommodation dominated over the principle of the apostolic ori­gin. The situation, he maintained, resulted from the fact that the aforementioned area included excessively numerous sees which were either established by one of the Apostles or were considered to be somehow connected with their activities. Does the conclusion of the Czech researcher find any justification in the way the precedence of bishoprics is depicted in the Greek ecclesiastical historiography of the fifth century? The present article is to give an answer to the question. The analysis of the ecclesiastical historiography in question demonstrates that Eusebius of Caesarea, who wrote in the IV th century, while setting a hierarchy of bishops was guided first and foremost by the principle of accommodation. The church historians, however, who compiled their works a mere century later put a decisively lesser stress on Eusebius’ predilection in that matter. Although the narrative of Philostorgius, since fragmentary, is hard to interpret, Socrates’ atti­tude displays a marked tendency of favoring the importance of the apostolic ori­gin, which was most probably taken over from Rufinus of Aquileia. Sozomen tended to tell the difference between the official hierarchy of bishops, which was based on the principle of accommodation, and the structure of bishoprics connec­ted with the Apostles. Theodoretus, in turn, tended to connect both the principles, however, preferring the idea of the Church originated by saint Peter, accordingly of the ecclesiastic structure based on the principle of the apostolic origin. As a consequence, and contrary to F. Dvornik’s thesis, it should be concluded that (at least) the authors of the Ecclesiastic Histories of the fifth century were in favor of the principle of the apostolic origin and maintained it was over the prin­ciple of accommodation.


2021 ◽  
Vol 29 (1) ◽  

The present article discusses the concept of difference as a natural phenomenon and civilizational necessity. It is confirmed that the difference between people’s minds and interests is inevitable and leads to variety and integration. Light is shed on the employment of difference as a positive culture to reach integration between people’s opinions, acceptance of the Other and participation in community building. In contrast, there are negative types of difference, which reject and take a hostile attitude to the Other, pushing for bigotry and arrogance based on prioritizing personal desires over the truth. A number of mechanisms and means are suggested from an Islamic perspective to help in promoting positive difference and reducing negative difference. The literature review provides true stories of pious and wise people who managed to build bridges on their differences with their good manners


Author(s):  
Keisuke Seya ◽  
Nobuyuki Kobayashi ◽  
Seiko Shirasaka

The need to learn emerging technologies such as artificial intelligence is increasingly important not only for technical people but also for non-technical people. Previous studies showed the effectiveness of a story-based teaching method for both technical and non-technical people who want to learn emerging technologies. However, the difference between the story-building methods for technical people and non-technical people is not revealed. The purpose of this research is to pro-pose perspectives that reveal the differences in the stories used for emerging technology education and identify the effective story features suited for non-technical adult learners by comparing the different story-building methods used for technical people and non-technical people. In this study, we classified the story types into two perspectives: "past to present" and "present to future" and compared the two story-building methods in these perspectives. The novelty of this research is that the proposal of perspectives that reveal the differences in the stories used for emerging technology education and that we have identified the features of one of the effective stories suited for non-technical adult learners. We al-so examined the possibility of leveraging such differences in solving the issues that a class of non-technical people called conversational programmers is facing.


2004 ◽  
Vol 31 (2-3) ◽  
pp. 297-327
Author(s):  
Wolf Peter Klein

The present article demonstrates, with the example of the polyhistor Johann Heinrich Al­sted (1588–1638), that in the 17th century there already was systematic work done on language for special purposes. This kind of research was essentially oriented toward the lexicon and stood in close connection to comparative linguistics undertaken at the time. Methodologically it was closely bound up with the categories of lexicological analysis keeping in view semantic and etymological details of technical terms. At the same time, whenever required, the difference between technical language and common language was analyzed. Additionally, in the presentation of the technical lexicon contemporary techniques such as the doctrine ofloci communesand pieces taken from Ramistic logic were employed. At the time, the transfer of Greco-Roman terminology to the various vernaculars did not yet play a major role in these activities. Instead, we must see these efforts in the identification and analysis of the technical lexicon as being part of the projects to construct a universal science.


2020 ◽  
Vol 16 ◽  
Author(s):  
Nitika Singh ◽  
Nagesndra Sastry Yarla ◽  
Nikhat Jamal Siddiqi ◽  
Maria de Lourdes Pereira ◽  
Bechan Sharma

Background: Citrus limon, a Mediterranean-grown citrus species of plants belonging to the Rutaceae family, occupies a place of an impressive range of food and medicinal uses with considerable value in the economy of the fruit of the country. Citrus fruits are economically important with a large-scale production of both the fresh fruits and industrially processed products. The extracts and phytochemicals obtained from all parts of C. limon have shown immense therapeutic potential because of their anticancer, anti-tumor and anti-inflammatory nature and also serve as an important ingredient in the formulation of several ethnic herbal medicines. These properties are mediated by the presence of different phytochemicals, vitamins and nutrients in the citrus fruits. Material and Methods: The methods involve in preparation of the present article included the collection of information from various scientific databases, indexed periodicals, and search engines such as Medline Scopus google scholar PubMed, PubMed central web of science, and science direct etc. Results: This communication presents an updated account of different pharmacological aspects of C. limon associated with its anti-oxidative, antiulcer, antihelmintic, insecticidal, anticancer, cytotoxic, and estrogenic activities. In addition, C. limon extracts possess hepatoprotective, anti-hyperglycemic, and antimicrobial properties. The present article includes the structure and function of different key chemical constituents from different parts of C. limon. Also, the possible molecular mechanisms of actions of bioactive compounds from C. limon are displayed. Conclusion: The traditional and ethno-medicinal literature revealed that C. limon is very effective in different pathologies. Most of these compounds possessing antioxidant properties would be implicated in offering health benefits by acting as potential nutraceuticals to humans with special reference to disease management of health and disease.


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