critical reason
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2021 ◽  
pp. 002188632110591
Author(s):  
Dirk De Clercq ◽  
Renato Pereira

This study details the unexplored connection between employees’ exposure to family incivility and voice behavior to pinpoint organization problems, considering the mediating role of their work engagement and the moderating role of their emotion sharing with colleagues in this connection. Survey data obtained from employees who work in the banking sector reveal that a critical reason rude treatment by family members keeps employees from expressing their opinions about organizational shortcomings at work is that they exhibit limited positive work energy. This explanatory role of work engagement is less salient though when employees can draw on the relational resource of emotion sharing. For organizational change professionals, this study accordingly showcases a core explanation, thwarted work engagement, by which family-related hardships prevent employees from undertaking productive problem-focused voice activities, and it explicates how this mechanism can be subdued if the work environment encourages employees to express personal feelings openly to their peers.


2021 ◽  
Author(s):  
Justine Pallu ◽  
Charlie Rabin ◽  
Pan Hui ◽  
Thamires Moreira ◽  
Corentin Calvet ◽  
...  

The strength of autocatalytic reactions lies in their ability to provide a powerful means of molecular amplification, which can be very useful for improving the analytical performances of a multitude of analytical and bioanalytical methods. However, one of the major difficulties in designing an efficient autocatalytic amplification system is the requirement for reactants that are both highly reactive and chemically stable in order to avoid limitations imposed by undesirable background amplifications. In the present work, we devised a reaction network based on a redox cross-catalysis principle, in which two catalytic loops activate each other. The first loop, catalyzed by H2O2, involves the oxi-dative deprotection of a naphthylboronate ester probe into a redox-active naphthohydroquinone, which in turn catalyzes the production of H2O2 by redox cycling in the presence of a reducing enzyme/substrate couple. We present here a set of new molecular probes with improved reactivity and stability, resulting in particularly steep sigmoidal kinetic traces and enhanced discrimination between specific and nonspecific responses. This translates into the sensitive de-tection of H2O2 down to a few nM in less than 10 minutes or a redox cycling compound such as the 2-amino-3-chloro-1,4-naphthoquinone H2O2 down to 50 pM in less than 30 minutes. The critical reason leading to these remarkably good performances is the extended stability stemming from the double masking of the naphthohydroquinone core by two boronate groups, a counterintuitive strategy if we consider the need for two equivalents of H2O2 for full deprotection. An in-depth study of the mechanism and dynamics of this complex reaction network is conducted in order to better understand, predict and optimize its functioning. From this investigation, the time response as well as detection limit are found highly dependent on pH, nature of buffer, and concentration of the reducing enzyme.


2021 ◽  
Vol 9 ◽  
Author(s):  
Suping Zheng

In order to investigate the mechanism of water-rich and fully weathered granite on the water bursting and mud bursting, the single-factor variable method is adopted in this study. The particle size gradation, initial porosity, water pressure, confining pressure, and anti-outburst thickness are chosen to determine each factor on the evolution of sand gushing, porosity, permeability, fine particle concentration, and water gushing velocity. Results indicate that a particle loss is the most critical reason for the water bursting and mud bursting of water-rich and fully weathered granite. The transition of water bursting from the linear to the nonlinear stage is the most significant feature. Soil particles with a larger Talbol power index are more likely to lead to water bursting. In addition, there is a critical water pressure to control the occurrence of water bursting and mud bursting. It is found that when the confining pressure reached the soil yield strength, the evolution of water bursting and mud bursting is independent of the increase in confining pressure. The increase in anti-outburst thickness can also effectively limit the risk of water bursting and mud bursting.


Author(s):  
Qianming Man ◽  
Pijun Gong ◽  
Yifei Jiang ◽  
Yulu Zhang ◽  
Ziqiang Chen ◽  
...  

The poisoning effect of KNO3, NaNO3, and Ca(NO3)2 on CeZrTiAl catalyst for selective catalytic reduction of NO with NH3 was investigated. It was found that the activity deactivation rate follows K> Na > Ca. SEM and BET showed that the accumulation of catalysts was severe after poisoning, and the nanosheet γ-Al2O3 skeleton structure disappeared due to alkali coating. The decrease of the specific surface area is accompanied by pore blockage, making the catalyst unable to expose rich reaction sites. In addition, the fewer surface Ce3+ and chemisorbed oxygen on the surface of the poisoned catalyst weaken the cycle between Ce3+ and Ce4+, resulting in bad redox performance. Thus, the failure to realize the efficient oxidation of NO to NO2. Another critical reason for catalyst poisoning failure is that the decrease of surface acid sites seriously affects the adsorption and activation of NH3 and NOx on the catalyst surface.


Author(s):  
Abdallah Zbir Abdallah Zbir

  There always exists the lived Islam, the one has been dominating the spheres of religion, politics, society and culture since its formative period; i.e., the one imagined, cut off from critical reason and history and having been used as the basis of authority. This type of Islam, which Mohammed Arkoun refuted, is nothing less than Muslim traditionalists’ Islam – i.e., the one has been developing and growing out their dogmatic readings of revelation and its deterioration into ideologies of dominion. It is the one has been making use of theological (orthodox) doctrines like ‘al-Hakimiyah li Allah’ (no authority but of Allah) not only as the basis of the religious and political elites’ power and control, but also –which is worse – of Islamists extreme ideology. Here, Arkoun notes, such expressions have been taken (still are) as the basis not only of the trueness of Islam, but also of the ideology itself. It all depends on a rigid reading of certain Qur’anic verses. Muslims radicals have always found in them the pretense, arguments; say the justification of their ideology.   This research paper attempts, through a critical analytical methodology, to clarify this matter from the viewpoint of Muhammad Arkoun. It lets Arkoun’s ideas circulate through my own analysis, which varies and overlaps following the fluidity of his own methodology. While it does, the comparative mode in it has its own space in certain contexts, which, altogether, form both the theoretical and organizational bases of this paper. 


Author(s):  
Sri Nurani

<p><em>Caring for the Diversity of Schools by Building the Character of Pancasila Students. The background is the phenomenon of viral news related to the issue of the dynamics of diversity in the educational environment. This news quickly spread to become a hot issue that was feared could have a negative impact. Because the Indonesian nation stands on a foundation of diversity / diversity, this condition is a problem that must be resolved so that it does not develop into a bigger conflict while preventing and minimizing it. The research method used qualitative methods with data collection techniques through observation, literature study and interviews. The results of the research show that there is an assumption that diversity / diversity can endanger the integrity of the nation, is a reason to maintain diversity in order to remain in wholeness and unity. Schools as intellectual communities and as miniatures of national diversity must be able to care for this diversity by building the character of Pancasila students. Pancasila students are lifelong students who have global competence and behave according to the values of Pancasila, namely: Believing &amp; being devoted to God Almighty and Moral Morals, Global Diversity, Mutual Cooperation, Independent, Critical Reason, Creative.</em></p>


2021 ◽  
Vol 28 (1) ◽  
pp. 43-56
Author(s):  
Diego Alegria

In this essay, I argue that Spanish American modernismo (1880-1917) constitutes an affirmation and negation of Romanticism: it is a manifestation of Romanticism’s critical reason and self-definition as literature in the Spanish American sphere, and it is a denial of Romanticism as a European cultural period and as a metropolitan literary model. To explore this contradiction, I contrast the allegories of literature in William Wordsworth’s “Preface” to Lyrical Ballads (1802) and José Martí’s “Prólogo al Poema del Niágara de Juan A. Pérez Bonalde” (1882). Both texts have been considered as pivotal literary manifestos of Romanticism and modernismo, respectively. Through this essay, its theoretical background, and rhetorical reading, I rethink the transatlantic relationship between both cultural movements and their self-definitions as literature.


Author(s):  
Sindhu Sreeranga ◽  
Hiroshi Takagi ◽  
Rikuo Shirai

Despite all efforts and massive investments, the restoration of mangroves has not always been successful. One critical reason for this failure is the vulnerability of young mangroves, which cannot grow because of hydrodynamic disturbances in the shallow coastal water. For a comprehensive study bridging ecological and engineering principles, a portable community-based reef is proposed to shield mangroves from waves during the early stages of their growth. A series of field observations were conducted on Amami Oshima Island (Japan), to observe the growth of young mangroves and their survival rate under moderate wave conditions. The evolution of young mangroves was also observed in the laboratory under a controlled indoor environment. At the research site, it was confirmed that, after six months of germination, young mangroves could withstand normal high waves. Laboratory-grown plants were lower in height and had fewer leaves compared with the native mangroves on Amami. Based on these results, an economical reef system was designed. For this purpose, the Ahrens formula for the design of a low-crested reef breakwater was revisited. The results showed that a 50-cm-high reef constructed with 15-kg stones can protect mangroves that are a few months old and effectively promote early mangrove growth.


2021 ◽  
Vol 2 (3) ◽  
pp. 0
Author(s):  
Pavel Vladimirov

The article is devoted to identifying the concept of the meaning of life in the critical philosophy of A.I. Vvedensky, where special attention is paid to the methodological foundations and the historical and philosophical context. The formulation of the question about the meaning of life is one of the ultimate questions in philosophy, the answer to which makes it possible to determine the motives of human activity. In Vvedenskyʼs philosophy, the problem of goal-setting in life is revealed in the prism of a key research intention – the construction of a scientifically revised worldview based on the principles of criticism. As a result, the question of life and its purpose is reduced to the formulation of the question of the logical permissibility and boundaries of questioning. The article attempts to reconstruct the philosopherʼs reasoning and identify the most significant definitions, which include morality, mental life, and the purpose of life. The disclosure of the concept of life in Vvedenskyʼs philosophy invariably requires consideration of the context in which the development of the philosopherʼs ideas takes place. Based on a comprehensive analysis, it is concluded that the concept of life is an extension of the main goal of Vvedenskyʼs research – the disclosure of the conditions for the formation of a reliable worldview, focused on the principles of scientific knowledge in accordance with moral values. Another important consequence is the provision on the priority of morality in relation to scientific and philosophical knowledge. The foundations of morality, to which the meaning of life belongs, can be presented only in a special form of applicability of critical reason – critical faith. Thus, the question of the specifics of critical metaphysics and the importance of differentiation of types and forms of faith in the work of the Russian neo-Kantian are clarified.


Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 873 ◽  
Author(s):  
Zenghui Su ◽  
Shan Ren ◽  
Zhichao Chen ◽  
Jie Yang ◽  
Yuhan Zhou ◽  
...  

In this study, the poisoning effect of CaO on activated carbon (AC)-based Mn-Ce catalysts was discussed. Loading CaO inhibited the catalytic activity of the catalyst and the NO conversion of the catalyst decreased from 69.5% to 38.2% at 75 °C. The amount of MnO2 in AC surface decreased in the process of loading CaO, which was detrimental to the Selective Catalytic Reduction (SCR) performance of the catalyst. The change of manganese oxide form inhibited generation rate for the chemisorption oxygen and NO2, which was the most critical reason for the decrease of catalytic activity. Besides, loaded CaO entered into the pores of the catalyst, which led to the blockage of the pores and further resulted in the decrease of the Brunauer-Emmett-Teller (BET) surface area and total pore volume. It also destroyed the oxygen-containing functional groups and acid site on the surface of AC. All of these caused the deactivation of Mn-Ce/AC catalyst after loading CaO.


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