scholarly journals Nitrogen oxides as a factor in the variability of chlorophyll content in leaf tissues of Salix kochiana Trautv. at different stages of vegetation

2021 ◽  
Vol 20 (1) ◽  
pp. 198-202
Author(s):  
L. A. Zakharova
Keyword(s):  
Nitrogen Oxides ◽  
Chlorophyll Content ◽  
Sharp Decrease ◽  
Background Level ◽  
Growing Season ◽  
Point Of View ◽  
Primary Stress ◽  
Leaf Tissues ◽  
Fumigation Chamber ◽  
Set Up

In this work, the variability of the content of chlorophylls in the tissues of the plant leaves of the introducedspecies Salix kochiana in response to the action of low doses of nitrogen oxides was determined. To set up the experiment,a fumigation chamber was used to simulate environmental pollution with nitrogen oxides, concentration 0.5; 1.0; 1.5 and2.0 units of the maximum one-time MPC. It was found that the relationship between the dose of the operating gas and thechlorophyll content is non-linear. At the beginning of the growing season, under the influence of nitrogen oxides with aconcentration of 0.5 and 1.0 MPC, the chlorophyll content increases sharply (1.3 times), a further increase in the dose ofthe operating gas to 1.5 and 2.0 MPC leads to a decrease in the value of this indicator to background level. At the end ofthe growing season, the effect of nitrogen oxides with a concentration of 0.5 and 1.0 MPC, on the contrary, is accompanied by a sharp decrease in the content of chlorophylls (1.7 times), and an increase in the dose of the active gas leads toan increase in the value of this indicator, but its level remains significantly lower than the background. The interpretationof the obtained data from the point of view of the theory of stress makes it possible to characterize the response of Salixkochiana plants at the beginning of the growing season as a stage of the primary stress reaction, at the end of the growingseason as a stage of resistance, which makes it possible to recommend the studied species for landscaping areas with a similar nature of atmospheric pollution.

The Revolutionizing of the Revolution

2017 ◽  
Author(s):  
R. R. Palmer
Keyword(s):  
French Revolution ◽  
Point Of View ◽  
Strict Sense ◽  
French Government ◽  
Thing In Itself ◽  
Set Up ◽  
The Moment ◽  
The French Revolution ◽  
The Revolution

In 1792, the French Revolution became a thing in itself, an uncontrollable force that might eventually spend itself but which no one could direct or guide. The governments set up in Paris in the following years all faced the problem of holding together against forces more revolutionary than themselves. This chapter distinguishes two such forces for analytical purposes. There was a popular upheaval, an upsurge from below, sans-culottisme, which occurred only in France. Second, there was the “international” revolutionary agitation, which was not international in any strict sense, but only concurrent within the boundaries of various states as then organized. From the French point of view these were the “foreign” revolutionaries or sympathizers. The most radical of the “foreign” revolutionaries were seldom more than advanced political democrats. Repeatedly, however, from 1792 to 1799, these two forces tended to converge into one force in opposition to the French government of the moment.

Communicative Strategies and Tactics of Debate as a Learning Tool

2020 ◽  
Vol 81 (2) ◽  
pp. 21-26
Author(s):  
Z. I. Kurtseva
Keyword(s):  
Questionnaire Survey ◽  
Sharp Decrease ◽  
Russian Language ◽  
Point Of View ◽  
Primary Data ◽  
Federal State ◽  
School Students ◽  
Communicative Strategies ◽  
Psychology Pedagogy ◽  
State Educational

This article discusses an urgent educational problem, i.e. a sharp decrease in the level of students’ spoken language and, in particular, the lack of willingness and ability among school students to engage in a constructive dialogue when participating in debates. It is no accident that modern federal state educational standards pay special attention to the formation of students’ communicative competence at all levels of education. The aim of this article was to investigate the current situation in the field in order to obtain primary data showing at which educational levels the techniques of debate and discussion are used; to analyse the verbal behaviour of participants implementing various communicative strategies and tactics during debates. The following research methods were used: an analysis of literature in the field of psychology, pedagogy, communication and methodology; a questionnaire survey and interviews; an analysis of the oral presentations of students; generalization of pedagogical experience. The results of the interviews and questionnaire survey conducted among first-year university show that about 60% of the respondents experience difficulties in constructing argumentative speech. Discussions in schools are held only in high school. Secondary school teachers lack the competencies of organizing and conducting debates in class. The development of communicative skills of defending one’s point of view and conducting informed debates using communicative tactics based on the principles of dialogue and politeness should be taught during teenage years. It is at this age that communicative competencies are most actively formed. Specific examples of including debates in the curriculum of the Russian language (5th grade) for developing primary discussion skills are presented.

scholarly journals On Kaufmann's theory of the impact of the pianoforte hammer

1920 ◽  
Vol 97 (682) ◽  
pp. 99-110 ◽  
Keyword(s):  
Initial Conditions ◽  
Practical Importance ◽  
Prima Facie ◽  
Point Of View ◽  
Infinite Length ◽  
Modes Of Vibration ◽  
Rigorous Treatment ◽  
The Subject ◽  
Set Up ◽  
The Impact

The theory of the vibrations of the pianoforte string put forward by Kaufmann in a well-known paper has figured prominently in recent discussions on the acoustics of this instrument. It proceeds on lines radically different from those adopted by Helmholtz in his classical treatment of the subject. While recognising that the elasticity of the pianoforte hammer is not a negligible factor, Kaufmann set out to simplify the mathematical analysis by ignoring its effect altogether, and treating the hammer as a particle possessing only inertia without spring. The motion of the string following the impact of the hammer is found from the initial conditions and from the functional solutions of the equation of wave-propagation on the string. On this basis he gave a rigorous treatment of two cases: (1) a particle impinging on a stretched string of infinite length, and (2) a particle impinging on the centre of a finite string, neither of which cases is of much interest from an acoustical point of view. The case of practical importance treated by him is that in which a particle impinges on the string near one end. For this case, he gave only an approximate theory from which the duration of contact, the motion of the point struck, and the form of the vibration-curves for various points of the string could be found. There can be no doubt of the importance of Kaufmann’s work, and it naturally becomes necessary to extend and revise his theory in various directions. In several respects, the theory awaits fuller development, especially as regards the harmonic analysis of the modes of vibration set up by impact, and the detailed discussion of the influence of the elasticity of the hammer and of varying velocities of impact. Apart from these points, the question arises whether the approximate method used by Kaufmann is sufficiently accurate for practical purposes, and whether it may be regarded as applicable when, as in the pianoforte, the point struck is distant one-eighth or one-ninth of the length of the string from one end. Kaufmann’s treatment is practically based on the assumption that the part of the string between the end and the point struck remains straight as long as the hammer and string remain in contact. Primâ facie , it is clear that this assumption would introduce error when the part of the string under reference is an appreciable fraction of the whole. For the effect of the impact would obviously be to excite the vibrations of this portion of the string, which continue so long as the hammer is in contact, and would also influence the mode of vibration of the string as a whole when the hammer loses contact. A mathematical theory which is not subject to this error, and which is applicable for any position of the striking point, thus seems called for.

Atomistic Aspects of Fracture Modelling in the Framework of Continuum Mechanics

1998 ◽  
Vol 538 ◽  
Author(s):  
F. Cleri
Keyword(s):  
Continuum Mechanics ◽  
Constitutive Relations ◽  
Point Of View ◽  
Atomic Scale ◽  
Continuum Models ◽  
Cohesive Law ◽  
Macroscopic Models ◽  
Scale Models ◽  
Level Information ◽  
Set Up

AbstractThe validity and predictive capability of continuum models of fracture rests on basic informations whose origin lies at the atomic scale. Examples of such crucial informations are, e.g., the explicit form of the cohesive law in the Barenblatt model and the shear-displacement relation in the Rice-Peierls-Nabarro model. Modem approaches to incorporate atomic-level information into fracture modelling require to increase the size of atomic-scale models up to millions of atoms and more; or to connect directly atomistic and macroscopic, e.g. finite-elements, models; or to pass information from atomistic to continuum models in the form of constitutive relations. A main drawback of the atomistic methods is the complexity of the simulation results, which can be rather difficult to rationalize in the framework of classical, continuum fracture mechanics. We critically discuss the main issues in the atomistic simulation of fracture problems (and dislocations, to some extent); our objective is to indicate how to set up atomistic simulations which represent well-posed problems also from the point of view of continuum mechanics, so as to ease the connection between atomistic information and macroscopic models of fracture.

Translator and translation research: general descriptions of concepts

2019 ◽  
Author(s):  
Darian Jancowicz-Pitel
Keyword(s):  
Quantitative Method ◽  
Point Of View ◽  
Translation Process ◽  
Translation Research ◽  
Qualitative And Quantitative ◽  
The Third ◽  
Part Time ◽  
Set Up ◽  
Translation Errors ◽  
Multiple Languages

The presented paper aimed for exploring the translation process, a translator or interpreter needs equipment or tools so that the objectives of a translation can be achieved. If an interpreter needs a pencil, paper, headphones, and a mic, then an interpreter needs even more tools. The tools required include conventional and modern tools. Meanwhile, the approach needed in research on translation is qualitative and quantitative, depending on the research objectives. If you want to find a correlation between a translator's translation experience with the quality or type of translation errors, a quantitative method is needed. Also, this method is very appropriate to be used in research in the scope of teaching translation, for example from the student's point of view, their level of intelligence regarding the quality or translation errors. While the next method is used if the research contains translation errors, procedures, etc., it is more appropriate to use qualitative methods. Seeing this fact, these part-time translators can switch to the third type of translator, namely free translators. This is because there is an awareness that they can live by translation. These translators set up their translation efforts that involve multiple languages.

On the Notion of Collective Intelligence

2010 ◽  
Vol 1 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Epaminondas Kapetanios
Keyword(s):  
Collective Intelligence ◽  
Point Of View ◽  
Social Web ◽  
Synergistic Interactions ◽  
Design And Implementation ◽  
Computing Paradigm ◽  
The Social ◽  
Challenging Research ◽  
Research Questions ◽  
Set Up

In this article, the author explores the notion of Collective Intelligence (CI) as an emerging computing paradigm. The article is meant to provide a historical and contextual view of CI through the lenses of as many related disciplines as possible (biology, sociology, natural and environmental sciences, physics) in conjunction with the computer science point of view. During this explorative journey, the article also aims at pinpointing the current strengths and weaknesses of CI-related computational and system engineering design and implementation methodologies of CI-based systems. A non-exhaustive list of case studies set up the stage for CI applications as well as challenging research questions. These can be particularly directed towards the Social Web, as a very prominent example of synergistic interactions of a group of people with diverse cultural and professional backgrounds and its potential to become a platform for the emergence of truly CI-based systems.

scholarly journals Explosion waves and shock waves Part II—The shock wave and explosion products sent out by blasting detonators

1935 ◽  
Vol 148 (865) ◽  
pp. 604-622 ◽  
Keyword(s):  
Picric Acid ◽  
Point Of View ◽  
Hopkinson Pressure Bar ◽  
Similar Measure ◽  
Explosion Products ◽  
Lead Plate ◽  
Logical Method ◽  
Metal Casing ◽  
Set Up ◽  
Pressure Bar

The detonation of a cartridge of a high explosive is started by firing a detonator, which consists of a small metal cylinder containing a compound or mixture which is itself readily detonated when it is heated. The manner in which detonators thus function is not thoroughly understood, and the methods used for measuring their "efficiency" are, in consequence, diverse. By some methods only the total blow given by the detonator, or its crushing and shattering effect, is measured; the nail test and sand test are the crudest forms. The lead plate test gives a similar measure, and the efficiency of a detonator is judged not only by the depth of the impression produced, but also by the number and appearance of radial grooves in the lead plate produced by the disrupted metal casing. More precise physical methods have been adopted, such as the Hopkinson pressure-bar , which gives a measure of the time of action of the impulsive blow. A more logical method of measurement of efficiency would appear to be a examine the ease with which the detonator will set up detonation in a standard explosive or in a series of standard explosives. Such a method is the Esop test , in which measurement is made of the maximum amount of olive or cotton seed oil which can be mixed with picric acid without preventing its detonation by the detonator embedded in the mixture. Of the same type is the gap test , in which the detonator and a standard explosive are separated and the maximum distance is measured at which detonation of the explosive can be established. The efficiency of a detonator is of considerable technical importance. The more rapidly a detonator can set up detonation in a cartridge of explosive the greater will be the proportion of the cartridge which will detonate and the greater therefore will be the efficiency of the explosive, though once detonation is effectively set up it will be independent of the strength of detonator used. The use of an inefficient detonator may result in portions of cartridges remaining undetonated and becoming a source of danger during the subsequent handling of the material that has been blasted. With the desensitized explosives that are used in coal mines the efficiency of the detonator may influence the safety of the explosive from the point of view of its ability to ignite firedamp. The present investigation has been carried out for that reason.

scholarly journals Tax Law: Third Party As Payer of Income from Dependent Activity

2013 ◽  
Vol 13 (1) ◽  
pp. 147-161
Author(s):  
Jana Tepperová ◽  
Lucie Rytířová
Keyword(s):  
Income Tax ◽  
Personal Income ◽  
Point Of View ◽  
Third Party ◽  
Personal Income Tax ◽  
The Czech Republic ◽  
International Regulations ◽  
Set Up ◽  
Specific Tax ◽  
Collection Point

Abstract Employment related income paid by a third party (non-employer) has its specific tax treatment. In the Czech Republic, a different approach applies for calculation of personal income tax and obligatory insurance contributions from this income. With the preparation of the Single Collection Point (unifying the collection of personal income tax and obligatory insurance contributions), the question arises whether it is possible to set up unified treatment of this income for all obligatory payments. We provide detailed analyses of this topic from the point of view of the Czech legislation and comparison with selected countries. Further we follow with the discussion of problematic issues in unified treatment for all obligatory payments from this income; such as discrimination and complicated administration. We conclude that even if the national legislation for all obligatory payments from this income would not diff er, there will still be different treatment due to specific international regulations.

scholarly journals Interrogation tactics with an interpreter

2021 ◽  
Vol 118 ◽  
pp. 03004
Author(s):  
Sergey Vladimirovich Shvets ◽  
Vladimir Dmitrievich Zelensky ◽  
Svetlana Alexandrovna Kuemzhieva ◽  
Anastasiya Plotskaya
Keyword(s):  
Sharp Decrease ◽  
Point Of View ◽  
Theory And Practice ◽  
Criminal Proceedings ◽  
Linguistic Rights ◽  
Information Interaction ◽  
Lack Of Control ◽  
The Difference ◽  
Transfer Of Information ◽  
Investigation Procedure

In holding an investigation in relation to or with the involvement of persons, who do not know or insufficiently know the language of criminal proceedings, it becomes necessary to involve an interpreter in the crime investigation procedure. However, the contemporary investigative theory and practice take into account only one situation, namely the monolingualism of parties to a criminal proceeding. The situation when the investigator and his/her procedural opponent are fluent in different languages is still overlooked by our today’s researchers. The article examines features of the influence of the need to use an interpreter on the interrogation from the point of view of information interaction between the parties. Within the framework of this research, it was substantiated that during the interrogation involving an interpreter, additional tasks, that are not characteristic of interrogation in its classical sense, arise. The groups of communication features of interrogation with the involvement of an interpreter, generated by the difference in the language system, the lack of control on the part of the investigator over the transfer of information between the interpreter and interrogated person, as well as a sharp decrease in the range of tactical techniques suitable for use, were identified. It is proposed to divide tactical techniques during interrogation involving an interpreter into four groups depending on the need to explain the essence of them to the interpreter, as well as the need to prepare an interpreter to participate in their implementation. The article concludes the influence of an interpreter on the tactics of investigative actions, if necessary, to involve him/her to guarantee the linguistic rights of the parties to criminal proceedings, and also offers recommendations for overcoming the tactical difficulties that arise during interrogation.

scholarly journals The dependence of maize (Zea mays) hybrids yielding potential on the water amounts reaching the soil surface

Genetika ◽  
2013 ◽  
Vol 45 (1) ◽  
pp. 261-272 ◽  
Author(s):  
Branka Kresovic ◽  
Vesna Dragicevic ◽  
Bosko Gajic ◽  
Angelina Tapanarova ◽  
Borivoj Pejic
Keyword(s):  
Zea Mays ◽  
Soil Moisture ◽  
Block Design ◽  
Soil Surface ◽  
Growing Season ◽  
Maize Hybrids ◽  
Water Capacity ◽  
Set Up ◽  
Water Amount

The aim of the present study was to observe the response of maize hybrids under rainfed and irrigation conditions of the soil in order to establish the dependence of yielding potential on the water amounts reaching the soil surface during the growing season. The four-replicate trail was set up according to the randomised complete-block design on chernozem. Pre-watering soil moisture was approximately 70% of field water capacity, and soil moisture was established thermogravimetrically. During the five-year studies, the following differences in yields could be as follows: 12.68 t ha-1 (ZP 341); 12.76 t ha-1 (ZP 434); 13.17 t ha-1 (ZP 578); 14.03 t ha-1 (ZP 684) and 13.75 t ha-1 (ZP 704) under conditions of 440 mm, 440 mm, 424 mm, 457 mm and 466 mm of water, respectively. The hybrid ZP 341, i.e. ZP 578 expressed the highest, i.e. the lowest tolerance in dry relative seasons, respectively. The reduction of the water amount for every 10 mm decreased the yield by 119.4 kg ha-1 (ZP 341), 156.7 kg ha-1 (ZP 434), 172.3 kg ha-1 (ZP 578), 148.9 kg ha-1 (ZP 684) and 151.1 kg ha-1 (ZP 704).

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