On outward and inward productions in the categorical graph-grammar approach and Δ-grammars

1996 ◽  
Vol 6 (6) ◽  
pp. 527-543
Author(s):  
Hans J. Schneider

We consider the relationship between three ways of defining graph derivability. That the traditional double-pushout approach and Banach's inward version are equivalent in the case of injective left-hand sides is proved in a purely categorical setting. In the case of noninjective left-hand sides, equivalence can be shown in special categories if the right-hand side is injective. Both approaches have the same generative power in the category of graphs if the pushout connecting the outward production with the inward one is a pullback as well. Finally, it is shown that Banach's point of view establishes a close relationship between the categorical approach and Kaplan's Δ-grammars, allowing a slight generalization of Δ-grammars and making them an operational description of the categorical approach.

2015 ◽  
Vol 16 (1) ◽  
pp. 36-56
Author(s):  
Maria Elena Vera Villagran ◽  
L. Myriam Sagarnaga Villegas ◽  
Jose Salas Gonzalez ◽  
Juan Leos Rodriguez

This project looks for the relationship among variables influencing Mexican key lime supply and demand in the domestic and US market under the scenario of using a higher quantity of fertilizers as a strategy for responding against the threat of citrus greening (HLB). With the help of domestic and international databases from 2000 to 2012, a simultaneous equations model was built capturing behavioral and technical variables influencing supply and demand. The most important relationships among variables were price of the product and disposable income for the demand and use of fertilizers and exchange rate for the supply. This work gives the insight, from the economic point of view, that building a model including the right key variables will give a sense of the general structure of a market and the changes in stability due to a sanitary threat


Author(s):  
Stannard John E ◽  
Capper David

This chapter discusses the nature of termination for breach. Termination for breach can be seen both as a process and as a remedy. Traditionally, the topic has been dealt with under the broader umbrella of ‘discharge’, alongside such topics as performance, frustration, and agreement. Problems arise, however, when the notion of discharge is pressed too far; in particular, the idea of the contract ‘coming to an end’ can be a misleading one, and has given rise to various errors and misconceptions. For this and other reasons, more emphasis is now given to termination in the context of remedies. Termination can be one of the most useful weapons in the armoury for the victim of a breach of contract, not least because, unlike many other remedies, it does not require recourse to the courts. However, this notion of termination as a remedy should not obscure the close relationship between termination and the other modes of discharge, most notably frustration. The chapter then looks at the problems in this area of the law, including problems of terminology, the different ways in which common law and equity have approached the question, and the relationship between discharge and damages. It also considers the most important aspects of the right to terminate, including the right to refuse performance.


2019 ◽  
Vol 8 (1) ◽  
pp. 5
Author(s):  
Seda Sertel Meyvaci ◽  
Rengin Kosif ◽  
Murat Diramali ◽  
Tugce Baki

Background: The hand is a functionally critical organ at the distal end of the upper extremity. Also, the creases in the hands and the digital flexion creases on the fingers are the important external anatomical landmarks.Objectives: There are no studies found in the literature, linking solely the leadership personality traits with the anthropometric measurements of the hand.Methods: This descriptive study was to investigate the relationship between the 44 anthropometric measurements about hand, and the leadership personality traits in young adults from both genders.Results: When the leadership frames were compared by the scores, human resource leadership scores were significantly higher in the females. The charismatic leadership frame scores positively correlated with the parameters in males; including the breadth of the right hand, the breadth of the left hand, the index finger length of the left hand, and the distal phalanx length of the index finger on the left hand. The transformational leadership score was positively correlated with the left hand width and with the distal phalanx of the index finger on the left hand. In females, it was found out that the frames of human leadership and charismatic leadership correlated negatively with the length of the right thumb.Conclusions: According to the results of our study, we concluded that the breadth of the hand and the measurements of the thumb and the index fingers can provide opinion on leadership personality traits.  


Geophysics ◽  
1967 ◽  
Vol 32 (4) ◽  
pp. 708-719 ◽  
Author(s):  
M. K. Paul

A new method of computing residual anomalies for gravity prospecting data from a Bouguer gravity map has been evolved. In arriving at the proposed method, we have at first examined the behavior of the regional gravity field from an analytical point of view. With the concepts acquired therefrom in mind, we consider the case of square grids with such separation of stations that in an elementary area, formed by joining the four nearest stations around a central station, the regional field may be represented by a linear function of the Cartesian coordinates in the horizontal surface of observation. Making use of the formal relationship between the residual, regional, and Bouguer gravity values, we have been able to formulate in this case a set of simultaneous linear equations—one for each station of observation—with the residual values at the grid corners as the unknowns in the left hand sides of these equations and some linear function of the Bouger values at the grid corners as the known quantities in the right hand sides. With some plausible estimates of the residual values at the stations on the boundaries at hand, these equations can be solved efficiently with the aid of the relaxation technique as has been exemplified in the cases of theoretical model as well as field data.


Author(s):  
Gareth Richards ◽  
Wendy V. Browne ◽  
Ezra Aydin ◽  
Mihaela Constantinescu ◽  
Gideon Nave ◽  
...  

AbstractThe ratio of length between the second and fourth fingers (2D:4D) is commonly used as an indicator of prenatal sex hormone exposure. Several approaches have been used to try to validate the measure, including examining 2D:4D in people with congenital adrenal hyperplasia (CAH), a suite of conditions characterised by elevated adrenal androgen production secondary to defective steroidogenesis. We present here a systematic review that examines the relationship between these two variables. Twelve articles relating to nine CAH cohorts were identified, and 2D:4D comparisons have been made between cases and controls in eight of these cohorts. Altogether, at least one 2D:4D variable has been compared between n=251 females with CAH and n=358 unaffected females, and between n=108 males with CAH and n=204 unaffected males. A previous meta-analysis (Hönekopp & Watson, 2010) reported lower right hand (R2D:4D) and left hand (L2D:4D) digit ratios in patients with CAH relative to sex-matched controls. Our meta-analysis showed the same direction of results; however, the effects were only statistically significant for R2D:4D in males and L2D:4D in females (R2D:4D: females, p = 0.072, g = 0.591; males, p = 0.019, g = 0.513; L2D:4D: females, p = 0.020, g = 0.245; males, p = 0.334, g = 0.218), and the average effect size had reduced by 46.70%. We also found no evidence to suggest the right-left difference in 2D:4D (D[R-L]) is associated with prenatal sex hormone exposure.


2019 ◽  
Vol 11 (11) ◽  
pp. 31-43
Author(s):  
Fredy Andrés Cruz - Vega ◽  
Luz Eliana Figueroa - Granados

The research makes it possible to recognize the judgments of the users who are enrolled in the zero to always family modality and, in turn, establish the relationship they give to the program in the training of their children. The use of qualitative research for this proposal contributes or it establishes the relationship of describing and giving points of view to problems of the social educational and experiential context, the primary objective was to determine the degree of use by users of the program from zero to always family modality, in the municipality of Pamplona. It can be said that the application of this research contributes in part to diagnosing from a personal point of view the impact generated by the program in the training of minors, evidencing in it the theoretical, political and real positions in order to make them aware of the importance of training of children. The instruments used for families in certain rural areas who are the objects of study were semi-structured interviews; validated by experts from the area, they managed to produce key information for the analysis and triangulation. Thanks to the analysis units and the categories established in the interview, it was possible to focus and provide solutions to the objectives set, demonstrating the perception that the beneficiaries of the program of zero They always have in relation to the operation in rural areas of Pamplona. With the information obtained it is clear to establish the conformity of the operation of the program in terms of the role of care for families, the training of minors and the integration of society is thus how the show is getting on the right tide.


Author(s):  
L. Vasylenko ◽  
S. Khomenko

The purpose of the research in the article is to consider the theoretical problems of legal regulation of property liability of the employer. This work is devoted to investigation of the indemnification peculiarities by a legal or natural person caused by their employee or another person in accordance with Art. 1172 of the Civil code of Ukraine that will allow to establish cases of its use, in combination with other norms of the legislation, in particular labour. The conditions and reasons for the occurrence of the mentioned non-contractual obligations, peculiarities and problems of application of the right of regression to the persons who caused the damage will be revealed. Nowadays, unfortunately, the concept of «regressive obligations» has not been investigated enough, the legislation does not contain a specific definition of the term, there are no reasons and conditions for their occurrence and application, the legal provisions of the participants of these obligations have not been interpreted, which complicates the application of regression in practice. The issue of indemnification caused by an employee in the performance of his duties is closely intertwined with two related branches of civil and labour law. Therefore, it is necessary to analyze some elements of each type of responsibility to determine their independence and separation. To achieve this goal, the authors set the following tasks: to identify the causes of this discussion; to analyze the scientific positions by various scientists, about the civil nature of the relationship of indemnification by the employee to third party; to carry out the comparative analysis of legal regulation of the given relations by norms of the labour law and regulation of relations on indemnification caused by the employer, by its employee, by the civil legislation; determine the peculiarities of the relationship of liability of the employer for damage caused by the employee; summarise the legal nature of the relationship to compensate for damage caused by the employee. This will help to identify recommendations for action in the event of similar commitments in life. For this purpose, in this research the national legislation is analyzed from both a theoretical and practical point of view.


2007 ◽  
Vol 56 (6) ◽  
Author(s):  
Marianna Gensabella Furnari

L’impostazione classica della questione bioetica dell’eutanasia attraverso il paradigma dei principi conduce a risolvere la questione con un sì, se si privilegia il principio di autonomia, o con un no se si dà il primato al principio dell’indisponibilità della vita. Il saggio muove dalla proposta che sia possibile un altro approccio, basato sull’interazione, suggerita come linea metodica da Warren T. Reich, del paradigma dei principi con gli altri paradigmi della bioetica: l’esperienza, la cura, la virtù. Il primo momento è ripensare l’eutanasia come l’oggetto di una domanda che viene dalla sofferenza e che, come tale, va accolta ed interpretata in un contesto di relazione. A differenza del suicidio, non vi è qui un darsi la morte, ma un domandare la morte all’altro. L’attenzione etica va spostata dal far centro esclusivamente sull’autonomia al focalizzarsi anche e soprattutto sulla relazione, in particolare sulla complessità e le contraddizioni che segnano oggi la relazione tra il paziente e il medico. Anche se chiede una “cura” limite, paradossale che non può essere data, pena la contraddizione e il ribaltamento degli stessi fini della medicina, la domanda di eutanasia non può restare inevasa, ma deve essere accolta, ri-aperta con l’attenzione che il paradigma di cura impone, con l’humanitas che il paradigma di virtù ci consegna. L’attenzione etica all’esperienza di chi domanda la morte diviene il primo momento per trovare una conciliazione tra momenti apparentemente antitetici, come la sacralità e la qualità della vita, per cogliere la complementarità tra diritti apparentemente antitetici come il diritto ad essere lasciati soli e il diritto a non essere lasciati soli, per sostenere insieme la liberazione dal dolore fisico e la liberazione del dolore dell’anima. Spostando il punto di vista dalla libertà alla relazione, il saggio vuole indicare l’impossibilità etica di dire di sì all’eutanasia proprio sul versante della relazione, ponendo al tempo stesso l’accento non solo sulla responsabilità che il dire di sì comporta, ma anche sulle altre responsabilità di cui la domanda di eutanasia ci fa carico: le responsabilità che riguardano la situazione da cui trae origine, e le altre che riguardano ciò che rimane da fare per rispondere alla richiesta di aiuto e di cura che la domanda sottende. Con il movimento proprio dell’etica della cura, il saggio vuole proporre di non risolvere il dilemma in cui la questione bioetica dell’eutanasia sembra costringerci, rinunciando alla vita o alla libertà, ma di provare a ridefinire il contesto da cui il dilemma ha origine, in modo tale che sia possibile tenere insieme vita e libertà. ---------- Classical approach to the problem of the euthanasia, through the paradigm of the principles conducts to solve the matter with a yes, if the principle of autonomy is privileged, or with a no if the primacy is given to the principle of the unavailability of the life. This paper moves from the proposal that another approach is possible, based on the interaction, suggested as methodic line by Warren T. Reich, of the paradigm of the principles with the other paradigms of the bioethics: the experience, the care, the virtue. The first moment is to consider the euthanasia as the object of a question that comes from the suffering and that, as such, it must be welcomed and interpreted in a context of relationship. Unlike the suicide there is not here a killing oneself, but an asking other for death. The ethical attention must be moved from the exclusive center of autonomy to the relationship, particularly on the complexity and the contradictions that mark the physician-patient relationship between today. Even if it asks a limit “care”, paradoxical that cannot be given, or the aims of the medicine itself would be contradicted and overturned, the question of euthanasia cannot stay outstanding, but must be welcomed, opened again with the attention that the paradigm of care imposes, with the humanitas that the paradigm of virtue delivers us. The ethical attention to the experience of whom asks the death it becomes the first moment to find a conciliation among apparently antithetical moments, as the sacredness and the quality of the life, to gather the complementarity among apparently antithetical rights as the right to be left alone and the right not to be left alone, to sustain together the liberation from the physical pain and the liberation from the pain of the soul. Moving the point of view from freedom to relationship the paper wants to point out the ethical impossibility to say yes to the euthanasia just on the side of the relationship, at the same time setting the accent not only on the responsibility that saying yes means, but also on the other responsibilities of which the question of euthanasia ask us: the responsibilities derived by the situation and the others concerning what to answer to the help request and care that the question subtends. In the way proper of the ethics of the care, the paper proposes not to solve the dilemma of the euthanasia abdicating to the life or to the liberty, but trying to redefine the context from which the dilemma has origin, in such way that it is possible to hold together life and liberty.


2019 ◽  
Vol 29 (1) ◽  
pp. 259-272

What idleness, leisure, and free time have in common is that they are the opposite of labor; all three are linked with the cessation or interruption of labor. The article takes Kazimir Malevich’s provocative essay Laziness as the Truth of Mankind (1921) as the starting point for an examination of the complex and fraught issue of the balance between idleness and labor. Malevich redefines idleness as grace, as the point of labor and its peer, and as something that is not only a release from hard labor but that also leads to peace and God. The author proposes a reading of Malevich’s apologetics of idleness in juxtaposition with Marx’s early focus on the issues of human freedom and on alleviating alienation in a newly arranged society, and with Paul Lafargue’s argument that workers would do better to fight for the right to be idle than for the right to work. The comparison with Marx and Lafargue reveals a fundamental flaw in their socialist program of heroic labor, which preserved the exploitation of labor but had the state rather than the capitalists appropriate it. Malevich’s argument comes close to certain insights of John Maynard Keynes in which he envisaged science and technology resolving economic problems by enabling humanity to enter an age of idleness and plenty. Giorgio Agamben’s philosophical deliberations round out the contemporary understanding of the relationship between labor and idleness. From this point of view, laziness and idleness become essential elements of meaningful labor. The option to remain idle, to reject work, to prolong it or to delay its completion are becoming the sine qua non of creative labor worthy of a free person.


2020 ◽  
Vol 11 (29) ◽  
pp. 173-192
Author(s):  
Zohreh Sanaei ◽  
Jamshid Mirhadi ◽  
Ali Asgharzadeh

Traditional housing fabrics are an obviously valuable heritage to be reviewed and analyzed, as they present the right pattern for native architecture because it is considered the main core in the creation of cities, as well as the architectural elements and buildings located in them. The objective of this study is to review and recognize the physical and social behavior patterns of these buildings to improve these valuable fabrics and save them from their presence of unusual buildings. First, this study would review the key problems on the design of patterns in the architecture of the house, obtaining an analytical-descriptive point of view; This research first reviews the key issues of the patterns in the architecture of the house, and then identifies the physical components that are effective in traditional buildings, contrasting with the theoretical foundations obtained. The next step has been the identification and physical review using the field research method to physically identify and review the case study buildings in the historical fabric. After the analysis, the most effective physical components would be prioritized by hierarchical method. Finally, considering the results obtained, not only the principles of native architecture are identified, but also some approaches are introduced to improve the relationship between physical behavior environments in the Niakie neighborhood in Amol.


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