scholarly journals Nonuniformity of Isometric Properties of Automotive Driveshafts

Computation ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 145
Author(s):  
Mihai Bugaru ◽  
Andrei Vasile
Keyword(s):  
Dynamic Behavior ◽  
Constant Velocity ◽  
Direct Method ◽  
Point Of View ◽  
Future Research ◽  
Bending Vibrations ◽  
Starting Point ◽  
Combined Resonance ◽  
Ball Joints ◽  
Constant Velocity Joints

This paper presents an analysis of the CVJ (constant velocity joint) of automotive driveshafts from a point of view concerning the nonuniformity of isometric properties. In the automotive industry, driveshafts are considered to have constant velocity through its joints: free tripode joints and fixed ball joints, which has been proved by Mtzner’s indirect method and Orain’s direct method for tripod joint. Based on vectorial mechanics, the paper proved the quasi-isometry of velocity for polypod joints such as fixed ball joints. In the meantime, it was computed that the global nonuniformity of constant velocity joints for modern driveshafts based on the Dudita-Diaconescu homokinetic approach for the driveshafts. The nonuniformity of the velocity isometry of driveshafts was computed as a function of the input angular velocity of the driveshaft, angular inclination between the tripod–tulip axis and the midshaft axis and the angular inclination between the bowl axis and midshaft axis. The main aim of this article is how to improve the geometric and kinematic approach to add an important correction when designing the driveshaft dynamics prediction such as: forced torsional vibrations, forced bending–shearing vibrations, and coupled torsional–bending vibrations for the automotive driveshaft in the regions of specific resonances such as principal parametric resonance, internal resonance, combined resonance, and simultaneous resonances. By the way it is added, there are important corrections for the design of driveshafts, for the torsional dynamic behavior prediction, and for bending–shearing dynamic behavior of the driveshafts in the early stages of design. The results presented in the article represent a starting point for future research on dynamic phenomena in the area mentioned previously.

scholarly journals The Role of Organizational Emotions in Strategic Leadership: A literature Review

2021 ◽  
Vol 1 (5) ◽  
Author(s):  
Sudirman Sudirman
Keyword(s):  
Positive Emotions ◽  
Point Of View ◽  
Strategic Leadership ◽  
Future Research ◽  
Exclusion Criteria ◽  
External Resources ◽  
Grounded Theory Method ◽  
Starting Point ◽  
Strategic Leaders

Emotions are human things. When people consider emotions from a strategic leadership point of view, additional individual framing factors become unavoidable and play a role in an organization's management process. This research aimed to evaluate the existing literature on emotion and strategic leadership comprehensively. The study was a survey of the literature on emotion and strategic leadership. Because of the search and exclusion criteria applied, only 24 articles were relevant. The texts were studied using the grounded theory method to build a new theoretical model and identify essential characteristics of organizational emotion shifting. The model tried to demonstrate how the interaction of human and organizational elements and the task and problems faced by strategic leaders result in internal and external emotional shifts. This literature survey and theoretical integration provided a starting point for further research. The results show that the conceptualization of emotions in strategic leadership encompasses all five levels: positive emotions, negative emotions, emotional empowerment (internal emotion shaping), the establishment of external resources, and the use of power (external emotions shaping). The research revealed that emotion in organizational shaping was a key variable. This variable identified the numerous ways strategic leaders use emotion to shape organizations. It indicates that the concept can bring the person (strategic leader) and organizational levels together. In light of the limited literature, mainly focusing on strategic and emotional leadership, the model should be tested as a foundation for future research.

Romanian Gypsies in Spain. A Migratory Phenomenon, Its Causes and Repercussions

2017 ◽  
Vol 17 (2) ◽  
pp. 160-169
Author(s):  
Silviu Costachie
Keyword(s):  
Research Program ◽  
Social Acceptance ◽  
Historical Analysis ◽  
Point Of View ◽  
Direct Result ◽  
Future Research ◽  
Starting Point ◽  
The Social ◽  
The Status ◽  
Employment Education

AbstractIn the following paper we will discuss about the situation of the Romanian gypsies living in Spain and the main problems involved by their presence in this country. We will analyze the causes that made them emigrate to Spain, together with a historical analysis of this process, the living conditions they have (housing, employment, education...). Also, we will present the social problems they suffer because of their particular culture, other than Spanish, the main settlements where they chosen to live in Spain and social acceptance from the point of view of the Spanish population. The present article is the direct result of a research program that was developed almost two years ago by the Research Center for Regional Development and European Integration of the University of Bucharest, part of a larger research program regarding the ethnic minorities of Romania. The main important aspect of this research is the fact that we used two target groups interviewed both in Romania and Spain and also, we used official information regarding Romanian gypsy located actually on Spanish territory, according with the official Spanish census. This way we managed to gather a large quantity of information and to provide to the reader a closer to reality image of the status of Romanian gypsy presently living inside Spanish border. Also, the novelty brought by this research is the fact that we tried to present the social and integration problems encountered by the Romanian gypsies located in the cities or villages of Spain. The article might be considered a starting point for future research upon this subject.

Climate change and organizational management: toward a new paradigm

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Claudio Baccarani ◽  
Federico Brunetti ◽  
Jacques Martin
Keyword(s):  
Climate Change ◽  
Well Being ◽  
Point Of View ◽  
Future Research ◽  
New Paradigm ◽  
Content Type ◽  
Agriculture Industry ◽  
Starting Point ◽  
Model Of Management ◽  
External Shareholders

PurposeThe purpose of this paper is to tackle the grand issue of climate change in a managerial perspective by proposing a new type of management.Design/methodology/approachClimate change has now been debated for many years, and in spite of different viewpoints, analyses and opinions, is a phenomenon that is accepted by all. There are thousands of studies on the nature of climate change and its consequences on the planet Earth and its inhabitants. However, there are few studies investigating the consequences of climate change on the founding tenets and practices of management. This paper aims to contribute to this facet of the issue. In the first part, it examines the main facts about climate change, their impact on businesses and proposes an adapted model of management for agriculture, industry, services and supply chains. In the second part, it advocates a shift in paradigm from the “maximization of profit” to the “maximization of well-being” as the foundation of a new managerial philosophy that can both address climate change and sustainability.FindingsCompanies and managers are in a much better position than politicians and consumers to find a solution to climate change problems for the very reason that they are not stupid in Cipolla's (2011) sense. Companies and managers do have the power to rewrite the rules of the game in order to get to a firm and management metamorphosis. Starting from a return to company ownership by and for the company itself (not just external shareholders), a switch in purpose from profit-seeking to people's well-being, fair remuneration of stakeholders, progress as a measure of success and long-term orientation are suggested as new tenets in management.Research limitations/implicationsAlthough this paper has several limitations (it may be too wide in scope, utopian, its ideas may sound unachievable and even sometimes naïve in their arguments), its starting point is very clear: the authors, as management scholars, must do something to try and stop the crash of economies and businesses in an ecological disaster. And its logic is very clear and straightforward as well: if people want things to change, then they have to change the foundations of management thinking, both in theory and in practice. The authors do not claim their solution is the only one or the best: avenues for future research aimed at providing better solutions are wide open from this point of view, and the authors genuinely encourage colleagues to continue in this direction and contribute to this work. What matters most, however, is to stop looking for precise answers to “wrong, well-defined, narrow problems” and to start looking for “approximate answers to important problems” (Brown et al., 2005) as the authors tried to do here.Practical implicationsDeveloping a new management operating model and foundations able to keep companies alive while not compromising mankind survival on planet Earth.Originality/valueThis paper addresses the Tourish (2020) challenge for purposeful research in management by providing some fresh ideas about the way companies and management principles and practices should change to prevent irreversible environmental damages.

scholarly journals Zarządzanie różnorodnością w polskich przedsiębiorstwach– przegląd badań

2017 ◽  
Vol 1 (2) ◽  
pp. 133 ◽  
Author(s):  
Lena Barbara Grzesiak
Keyword(s):  
State Of The Art ◽  
Diversity Management ◽  
The State ◽  
Point Of View ◽  
Future Research ◽  
Business Managers ◽  
Specific Group ◽  
Future Directions ◽  
Starting Point ◽  
Practical Recommendations

Aim: The aim of the paper is to present the state and possible future directions of the research on diversity management in Polish firms.Design / Research methods: The author selected 20 state-of-the-art articles in the field of diversity management in Polish firms. Analysis of these articles allowed for identifying a starting point as well as possible directions for future research in this field.Conclusions / findings: The author argues that even though scholars find the issue of diversity management important and still valid, there also exist clear gaps in the research. Some areas (e.g. management of groups diverse in terms of age or gender) are preferred, while others appear to be neglected (e.g. management of people of a different sexual orientation). Scholars clearly tend to choose a specific group and research methodology.Originality / value of the article: The author conducted a review of existing studies on diversity management in Polish companies, and presented the state and directions of possible further research. The paper could inspire others to start further and more in-depth studies on diversity; a greater number of explorations in this area may yield interesting findings from the point of view of the diversity concept. Taking into account the directions proposed by the author may contribute to enriching the theory of management diversity, as well as provide practical recommendations for business managers.

LES AXES DE LA CRÉATION ET LA NAISSANCE DE LʹIMAGINAIRE COMME LANGAGE MYTHIQUE

Trictrac ◽  
2016 ◽  
Vol 9 ◽  
Author(s):  
Liliana Danciu ◽  
Petru Adrian Danciu
Keyword(s):  
Sacred Space ◽  
Physical World ◽  
Spoken Word ◽  
Point Of View ◽  
Philosophical Approach ◽  
Starting Point ◽  
Written Form ◽  
The Creation ◽  
Religious Systems ◽  
Rich Spectrum

The axes of the creation and birth of the imaginary as a mythical language. Our research follows the relationships of the concepts that are taking into account creation on the double axis of verticality and horizontality. We highlight those symbolic elements which would later constitute the mythical language about the sacred space-temporality. Inside this space-temporality a rich spectrum of mythical images develops; images capable of explaining the relationships of the creation plans. Without a religious perception of the temporality, the conceptualization of the axis would remain a philosophical approach. Through our point of view, the two are born simultaneously. Thanks to them, creation can be imagined. The first “frozen” formula of the mystical human spirit can be thought, brought to a palpable reality, expressed in an oral and then a written form. Studied together, temporality (sacred or not) and space are permanently imagined together. For example, a loss of mundane temporality in the secret ecstasy that offers to the soul an ascending direction does not mean getting out of universal temporality, but of its mundane section. In the sacred space the soul relates to time. Even the gods are submitted by the sacred, Aeon sometimes being synonymous to destiny. The universal creator seems to evade every touch, but not consistently, only when he avoids the descent into its created worlds. In sacredness, time and space seem or become confused, both expressing the same reality, by the immediate swing from thinking to deed. The mythical imagery conceives the displacement in the primary space-temporality by the spoken word. So, for something to appear and live, the spoken word is required. Even the divine dream appears as a pre-word of a creator’s thought. The thought follows the spoken word, the spoken word follows the gestures which finally indicate the meanings of the creative act, controlling the rhythm of the creation days. These three will later be adapted through imitation in rite. We are now situated at the limit of the physical world, a real challenge for the mythical imagery. The general feature of the mythical expression on the creation of the material world is the state of the divinity’s exhaustion, most often conceptualized by sacrifice or divine fatigue. The world geography identifies with the anatomy of a self-gutted god. Practically, material creation is most likely the complete revelation of God’s body autopsy. As each body decomposes, everything in it is an illusion. An axial approach of the phenomenon exists in all religious systems. The created element’s origin is exterior, with or without a pre-existing matter, by a god’s sacrifice or only because it has to be that way. This is the starting point of the discussion on the symbolism of axiality as a reason for the constitution of the language of creation, capable of retelling the imaginary construction of myth in an oral and then written form.

L’absence chez Michel Butor. L’Emploi du temps et Degrés

2012 ◽  
pp. 66-80
Author(s):  
Michał Mrozowicki
Keyword(s):  
Human Memory ◽  
Point Of View ◽  
Narrative Discourse ◽  
The Novel ◽  
Michel Butor ◽  
Starting Point ◽  
One Year ◽  
The Moment ◽  
Narrative Mode ◽  
The City

Michel Butor, born in 1926, one of the leaders of the French New Novel movement, has written only four novels between 1954 and 1960. The most famous of them is La Modification (Second thoughts), published in 1957. The author of the paper analyzes two other Butor’s novels: L’Emploi du temps (Passing time) – 1956, and Degrés (Degrees) – 1960. The theme of absence is crucial in both of them. In the former, the novel, presented as the diary of Jacques Revel, a young Frenchman spending a year in Bleston (a fictitious English city vaguely similar to Manchester), describes the narrator’s struggle to survive in a double – spatial and temporal – labyrinth. The first of them, formed by Bleston’s streets, squares and parks, is symbolized by the City plan. During his one year sojourn in the city, using its plan, Revel learns patiently how to move in its different districts, and in its strange labyrinth – strange because devoid any centre – that at the end stops annoying him. The other, the temporal one, symbolized by the diary itself, the labyrinth of the human memory, discovered by the narrator rather lately, somewhere in the middle of the year passed in Bleston, becomes, by contrast, more and more dense and complex, which is reflected by an increasinly complex narration used to describe the past. However, at the moment Revel is leaving the city, he is still unable to recall and to describe the events of the 29th of February 1952. This gap, this absence, symbolizes his defeat as the narrator, and, in the same time, the human memory’s limits. In Degrees temporal and spatial structures are also very important. This time round, however, the problems of the narration itself, become predominant. Considered from this point of view, the novel announces Gerard Genette’s work Narrative Discourse and his theoretical discussion of two narratological categories: narrative voice and narrative mode. Having transgressed his narrative competences, Pierre Vernier, the narrator of the first and the second parts of the novel, who, taking as a starting point, a complete account of one hour at school, tries to describe the whole world and various aspects of the human civilization for the benefit of his nephew, Pierre Eller, must fail and disappear, as the narrator, from the third part, which is narrated by another narrator, less audacious and more credible.

OWNERSHIP IN THE REPUBLIC OF MACEDONIA AND THE STATE AS THE HOLDER OF THE PROPERTY RIGHT UNDER THE CONSTITUTION IN 1991

2018 ◽  
Vol 28 (6) ◽  
pp. 1993-2005
Author(s):  
Shemsije Demiri ◽  
Rudina Kaja
Keyword(s):  
Legal Aspect ◽  
State Ownership ◽  
The State ◽  
Point Of View ◽  
State Function ◽  
Dominant Form ◽  
Republic Of Macedonia ◽  
General Terms ◽  
Starting Point ◽  
The Republic

This paper deals with the right to property in general terms from its source in Roman law, which is the starting point for all subsequent legal systems. As a result of this, the acquisition of property rights is handled from the historical point of view, with the inclusion of various local and international literature and studies, as well as the legal aspect devoted to the respective civil codes of the states cited in the paper.Due to such socio-economic developments, state ownership and its ownership function have changed. The state function as owner of property also changed in Macedonia's property law.The new constitutional sequence of the Republic of Macedonia since 1991 became privately owned as a dominant form of ownership, however, state ownership also exists.This process of transforming social property into state or private (dissolves), in Macedonia starts from Yugoslavia through privatization, return and denationalization measures, on which basis laws on privatization have been adopted. Because of this, there will be particularly intensive negotiations regaring the remaining state assets.

Enzyme Promiscuous Activity: How to Define it and its Evolutionary Aspects

2020 ◽  
Vol 27 (5) ◽  
pp. 400-410
Author(s):  
Valentina De Luca ◽  
Luigi Mandrich
Keyword(s):  
Gene Evolution ◽  
Sequence Divergence ◽  
High Specificity ◽  
Industrial Applications ◽  
Point Of View ◽  
Enzyme Promiscuity ◽  
Primary Activity ◽  
Starting Point ◽  
Main Activity

: Enzymes are among the most studied biological molecules because better understanding enzymes structure and activity will shed more light on their biological processes and regulation; from a biotechnological point of view there are many examples of enzymes used with the aim to obtain new products and/or to make industrial processes less invasive towards the environment. Enzymes are known for their high specificity in the recognition of a substrate but considering the particular features of an increasing number of enzymes this is not completely true, in fact, many enzymes are active on different substrates: this ability is called enzyme promiscuity. Usually, promiscuous activities have significantly lower kinetic parameters than to that of primary activity, but they have a crucial role in gene evolution. It is accepted that gene duplication followed by sequence divergence is considered a key evolutionary mechanism to generate new enzyme functions. In this way, promiscuous activities are the starting point to increase a secondary activity in the main activity and then get a new enzyme. The primary activity can be lost or reduced to a promiscuous activity. In this review we describe the differences between substrate and enzyme promiscuity, and its rule in gene evolution. From a practical point of view the knowledge of promiscuity can facilitate the in vitro progress of proteins engineering, both for biomedical and industrial applications. In particular, we report cases regarding esterases, phosphotriesterases and cytochrome P450.

Design of Inhibitors for Glyceraldehyde-3-phosphate Dehydrogenase (GAPDH) Enzyme of Leishmania mexicana

2020 ◽  
Vol 16 (6) ◽  
pp. 784-795
Author(s):  
Krisnna M.A. Alves ◽  
Fábio José Bonfim Cardoso ◽  
Kathia M. Honorio ◽  
Fábio A. de Molfetta
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Binding Site ◽  
Point Of View ◽  
New Drugs ◽  
Leishmania Mexicana ◽  
Receptor Complexes ◽  
Starting Point ◽  
Dynamics Simulations ◽  
Selection Of

Background:: Leishmaniosis is a neglected tropical disease and glyceraldehyde 3- phosphate dehydrogenase (GAPDH) is a key enzyme in the design of new drugs to fight this disease. Objective:: The present study aimed to evaluate potential inhibitors of GAPDH enzyme found in Leishmania mexicana (L. mexicana). Methods: A search for novel antileishmanial molecules was carried out based on similarities from the pharmacophoric point of view related to the binding site of the crystallographic enzyme using the ZINCPharmer server. The molecules selected in this screening were subjected to molecular docking and molecular dynamics simulations. Results:: Consensual analysis of the docking energy values was performed, resulting in the selection of ten compounds. These ligand-receptor complexes were visually inspected in order to analyze the main interactions and subjected to toxicophoric evaluation, culminating in the selection of three compounds, which were subsequently submitted to molecular dynamics simulations. The docking results showed that the selected compounds interacted with GAPDH from L. mexicana, especially by hydrogen bonds with Cys166, Arg249, His194, Thr167, and Thr226. From the results obtained from molecular dynamics, it was observed that one of the loop regions, corresponding to the residues 195-222, can be related to the fitting of the substrate at the binding site, assisting in the positioning and the molecular recognition via residues responsible for the catalytic activity. Conclusion:: he use of molecular modeling techniques enabled the identification of promising compounds as inhibitors of the GAPDH enzyme from L. mexicana, and the results obtained here can serve as a starting point to design new and more effective compounds than those currently available.

Determinants of Co-creative Behaviour of Patients: A Case Study in Jammu

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Jyoti Sharma ◽  
Lata Raj ◽  
Anil Gupta
Keyword(s):  
Customer Value ◽  
Research Area ◽  
Point Of View ◽  
Customer Participation ◽  
Citizenship Behavior ◽  
Future Research ◽  
Creative Behavior ◽  
Customer Profiling ◽  
Customer Citizenship Behavior ◽  
Lifestyle Diseases

The purpose of this study is to measure the existence of co-creation behavior between doctors and patients. The research also studies customer participation and customer citizenship behavior as the dimensions of co-creative behavior and tries to establish the relationship between co-creative behavior and satisfaction. This study uses Yi and Gong (2013) scale for collecting data regarding co-creation behavior and its dimensions which are customer participation (CP) and customer citizenship behavior (CCB). The data was collected from 204 patients who were suffering from various chronic/lifestyle diseases and getting their treatment from private clinics in Jammu city. The study uses 7-point Likert scale in the questionnaire ranging from 1 completely disagree through 7 completely agree, with a midpoint labeled 4 neither agree nor disagree. The analysis of paper reflects that co-creation behavior is prevalent among the patients and not only participation but the citizenship behavior also affects the co-creation behavior of patients. The study is conducted from patients point of view whereas doctors perspective should also be used in future research. The research area is restricted to Jammu city only. The research provides several implications-doctors can also use this scale for market segmentation and customer profiling for maximizing customer value co-creation behavior by gaining the useful information.

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