What is the real mechanism of anionic polymerization of β-lactones by potassium alkoxides? A critical approach

1991 ◽  
Vol 24 (5) ◽  
pp. 1218-1219 ◽  
Author(s):  
Z. Jedlinski ◽  
M. Kowalczuk ◽  
P. Kurcok
2017 ◽  
Vol 2017 (1) ◽  
pp. 97-116 ◽  
Author(s):  
Ronny Miron

The pivotal insight that paved Conrad-Martius’ (1880–1966) (CM) way in elucidating the ontological exclusivity of the I, denoted as “I-adhering being” (Ichhaftes Sein), is that despite its peculiarity and incomparability to any other mode of being, only the ontological foundations of the real being in general might enable a faithful comprehension of the I. The phenomenological interpretation suggested in this article presents CM’s ontological understanding of the I vis-a-vis her philosophy of Being, in particular in regard to three of its general characteristics – existence, intelligibility, and self-adherence (Sichheit/Selbsthaftigkeit) – which provide the critical approach to the ontological study of the I. Finally, the understanding of the ontological exclusivity of the I-adhering being is achieved by means of an explication of the joining together of its typical affinities and discrepancies in regard to Being in general.


2018 ◽  
Vol 10 (2) ◽  
Author(s):  
Carlos Emilio IBARRA MONTERO ◽  
Francisco Ramos de Farias

Resumo Este artigo é um exercício que pretende incentivar a reflexão sobre a migração a partir de uma perspectiva transdisciplinar que questiona as interações que se desenvolvem entre o cientista e o migrante. Partimos da ideia de que o migrante é violentado em duas diretrizes, a primeira pelos diversos dispositivos de observação utilizados pelo pesquisador, e a segunda, pela simulação por parte do cientista ao não remarcar a importância da retorção que os migrantes aparentemente apresentam como uma forma de reagir à violência que representa o fato de serem o objeto de estudo. Fazemos uma abordagem crítica em matéria de pensar os diferentes caminhos e o impacto que as ciências humanas têm percorrido com o intuito de encontrar o “real” ou, parafraseando Jean Baudrillard, de encontrar aquilo que é mais real do que o real.Abstract This article is an exercise that intends to encourage the reflection about migration through a transdisciplinarity perspective that asks the interactions developed between the scientist and the migrant. It starts from the idea that the migrant is violated in two guidelines. The first one by the diferents observation devices used by the researcher, and the second one, by the simulation made by the scientist in not remarking the importance of the retort apparently presented by the migrants as a way of reacting to the violence that represents the fact that they are the object of study. We take a critical approach to thinking about the different ways and the impact that the human sciences have taken in order to find the "real" or, to paraphrase Jean Baudrillard, to find that which is more real than the real. 


Author(s):  
Jan Rehmann

Against a widespread misunderstanding, Marx and Engels did not consider ideology as a mere form of consciousness expressing an underlying economic interest. They developed a critical approach that saw ideology as an alienated socialization from above, which is to be overcome in a classless society. It is also shown that their ideology-critical approach was not restricted to a critique of “false consciousness” but was mainly interested in unveiling the real “inversions” in the societal relations of class societies: the division of manual and intellectual labor; the fetishism of the commodity, money, and capital; and finally in the detached position of the state emerging together with class antagonisms as the “first ideological power” (Engels) over society. Marx and Engels thus anticipated a materialist concept of the ideological that was later developed explicitly in theories of hegemony and of ideology (e.g. by Gramsci, Althusser and the Berlin Projekt Ideologietheorie [PIT]).


2018 ◽  
pp. 93-104
Author(s):  
Michael Moser

Whilemost western linguists prefer the term “standard language”, the older term “literary language” still prevails in Ukrainian studies (as in other fields of Slavic studies). Although the expressions are theoretically synonymous, it is obvious that the traditional term “literary language” often creates serious problems. Particularly, this applies to various “Histories of the Ukrainian Literary Language,” which often turn out to be histories of the Ukrainian language of literature instead. Particularly, these works pay very scarce attention to the historical development of those factors that are decisive for the status of a “literary” or “standard language” as described, inter alia, by the Prague Linguistic Circle or Einar Haugen. Against the background of the theses that were suggested by the Prague Linguistic circle, histories of the Ukrainian “literary language” should provide considerably more information regarding the codification of Ukrainian and the dissemination of the codified language, the development of the multifunctionality and superregional outreach of Ukrainian and, to a certain extent, its stylistic diversification. The same is true if we look at our “Histories of the Ukrainian Literary Language” from Einar Haugens perspective (which is, after all, very similar to the Prague School theses) and want to know more about the processes of selection, codification, dissemination, and elaboration in their historical dimension. Unfortunately, the focus of the “Histories of the Ukrainian Literary Language” is clearly on the language of fine literature, although this sphere is in fact just one out of many that should be much more carefully studied in new monographs devoted to the history of the Ukrainian literary (or standard) language in the real meaning of the word. The present study offers a critical approach to the most widely used “History of the Ukrainian Literary Language” by Vitalij Rusanivskyj, which basically is a history of the Ukrainian language of literature.


Author(s):  
Toshihiko Takita ◽  
Tomonori Naguro ◽  
Toshio Kameie ◽  
Akihiro Iino ◽  
Kichizo Yamamoto

Recently with the increase in advanced age population, the osteoporosis becomes the object of public attention in the field of orthopedics. The surface topography of the bone by scanning electron microscopy (SEM) is one of the most useful means to study the bone metabolism, that is considered to make clear the mechanism of the osteoporosis. Until today many specimen preparation methods for SEM have been reported. They are roughly classified into two; the anorganic preparation and the simple preparation. The former is suitable for observing mineralization, but has the demerit that the real surface of the bone can not be observed and, moreover, the samples prepared by this method are extremely fragile especially in the case of osteoporosis. On the other hand, the latter has the merit that the real information of the bone surface can be obtained, though it is difficult to recognize the functional situation of the bone.


2020 ◽  
Vol 63 (6) ◽  
pp. 2016-2026
Author(s):  
Tamara R. Almeida ◽  
Clayton H. Rocha ◽  
Camila M. Rabelo ◽  
Raquel F. Gomes ◽  
Ivone F. Neves-Lobo ◽  
...  

Purpose The aims of this study were to characterize hearing symptoms, habits, and sound pressure levels (SPLs) of personal audio system (PAS) used by young adults; estimate the risk of developing hearing loss and assess whether instructions given to users led to behavioral changes; and propose recommendations for PAS users. Method A cross-sectional study was performed in 50 subjects with normal hearing. Procedures included questionnaire and measurement of PAS SPLs (real ear and manikin) through the users' own headphones and devices while they listened to four songs. After 1 year, 30 subjects answered questions about their usage habits. For the statistical analysis, one-way analysis of variance, Tukey's post hoc test, Lin and Spearman coefficients, the chi-square test, and logistic regression were used. Results Most subjects listened to music every day, usually in noisy environments. Sixty percent of the subjects reported hearing symptoms after using a PAS. Substantial variability in the equivalent music listening level (Leq) was noted ( M = 84.7 dBA; min = 65.1 dBA, max = 97.5 dBA). A significant difference was found only in the 4-kHz band when comparing the real-ear and manikin techniques. Based on the Leq, 38% of the individuals exceeded the maximum daily time allowance. Comparison of the subjects according to the maximum allowed daily exposure time revealed a higher number of hearing complaints from people with greater exposure. After 1 year, 43% of the subjects reduced their usage time, and 70% reduced the volume. A volume not exceeding 80% was recommended, and at this volume, the maximum usage time should be 160 min. Conclusions The habit of listening to music at high intensities on a daily basis seems to cause hearing symptoms, even in individuals with normal hearing. The real-ear and manikin techniques produced similar results. Providing instructions on this topic combined with measuring PAS SPLs may be an appropriate strategy for raising the awareness of people who are at risk. Supplemental Material https://doi.org/10.23641/asha.12431435


2010 ◽  
Vol 20 (3) ◽  
pp. 100-105 ◽  
Author(s):  
Anne K. Bothe

This article presents some streamlined and intentionally oversimplified ideas about educating future communication disorders professionals to use some of the most basic principles of evidence-based practice. Working from a popular five-step approach, modifications are suggested that may make the ideas more accessible, and therefore more useful, for university faculty, other supervisors, and future professionals in speech-language pathology, audiology, and related fields.


ASHA Leader ◽  
2002 ◽  
Vol 7 (14) ◽  
pp. 1-12
Author(s):  
Ellen Uffen
Keyword(s):  

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