The discussion about the impact of agricultural biotechnology on Africa is deeply divided and contains widely diverging claims about the impact of biotechnology on African farmers. Building upon literature on the ‘good farmer’ that highlights that farmers identities are an important factor in explaining the success or failure of agricultural change, we argue that the identity of the farmer is an undervalued yet crucial aspect for understanding the debate about the impact of agricultural biotechnology on African farmers. In this article (...) we therefore investigate what farmers’ identities are implicated in the arguments about the impact of biotechnology on African farmers. We aim to identify the main fault lines in different accounts of the African biotechnology farmer by analysing the identities ascribed to them in two prominent cases of controversy: the debates at the 2002 World Summit on Sustainable Development in Johannesburg and the discussion about the impact of biotechnology on smallholder farmers in the Makhathini flats in KwaZulu Natal, South Africa. Our findings demonstrate that arguments about biotechnology are informed by diverging conceptions of who the African farmer is, what is important for the African farmer, and what role the African farmer has in relation to agricultural biotechnology. These findings remain relevant for current discussions on gene editing technologies like CRISPR-Cas. Openly discussing these different views on the identity of smallholder farmers is crucial for moving forward in the biotechnology controversy and can inform future attempts to elicit the farmer’s voice. (shrink)

Here we shall employ the term "classical" to denote situations in science in which all propositions satisfy all the laws of classical logic, including that of excluded middle. This means that if x is a proposition of a given field of science, then the following statements will be true in regard to it: "either x or non-x," "either x is true or non-x is true," "x is either true or false." The emphasis here upon the law of excluded middle is (...) associated with the fact that criticism of this law is the basic content of nonclassical criticism of classical logic. (shrink)

In this paper, we present an expansion of one of the well-known classical inventory management models, which is the static model of inventory management without a deficit and for a single substance, based on the neutrosophic logic, where we provide through this study a basis for dealing with all data, whether specific or undefined in the field of inventory management, as it provides safe environment to manage inventory without running into deficit , and give us an approximate ideal volume of (...) inventory. Since the ideal size is affected by the rate of demand for inventory, we present in this paper a study of the rate of demand for inventory when it is not precisely refined, and we find that the indeterminate values of the demand rate cannot be ignored, because they actually affect determining the ideal size of inventory and calculating its costs, thus affecting on the efficiency of the facility and achieve great profits for it. (shrink)

Various interrelationships between two-valued and many-valued logics are examined in . In the present article we propose to discuss questions bearing on these interrelations which have either not been clearly identified as philosophical in that book, were not given sufficiently detailed explanation, or were not touched upon at all.

BackgroundThe Dutch Euthanasia Act applies to patients 12 years and older, which makes euthanasia for minors younger than 12 legally impossible. The issue under discussion specifically regards the capacity of minors to request euthanasia.ObjectiveGain insight in paediatric experts’ views about which criteria are important to assess capacity, from what age minors can meet those criteria, what an assessment procedure should look like and what role parents should have.MethodsA Delphi study with 16 experts (paediatricians, paediatric nurses and paediatric psychologists) who work (...) in Children Comfort Teams in Dutch academic hospitals. The questionnaire contained statements concerning criteria for capacity and procedural criteria. Consensus was defined as ≥80% agreement.ResultsThe experts agreed that five criteria for capacity, found in a previous literature study, are all important. They agreed that some children between ages 9 and 11 could meet all the criteria. Consensus was reached for the statements that the entire medical team should be involved in the decision making and that a second independent expert must assess the case. Experts agreed that the parents’ opinion is relevant and should always be taken into account, but it need not be decisive.ConclusionThis study shows that the age limit of 12 years in the Dutch Euthanasia Act is too strong according to paediatric experts. Letting go of the age limit or lowering the age limit combined with adequate capacity assessment for minors younger than 12 are options that should be discussed further. (shrink)

I. Mathematical logic has long since come into use in the solution of individual problems of interest in the methodology of science. In this connection the question arises as to how effective this use is, and what its prospects are. Before formulating any general and categorical judgments on that score, it would be useful to discuss special cases of the application of mathematical logic to the methodology of science. In the present article we shall deal with one case of this (...) order, to wit, the utilization of mathematical logic in investigating the problem of possibility and necessity. (shrink)

Книга посвящена теории и практике нравственной жизни человека - его человечности. Текст книги и послесловия приводятся в авторской редакции. И с научной, и с общечеловеческой точек зрения книга актуальна и может быть интересна широкому кругу читателей.

In 1665, in a response to a question posed by Robert Boyle, Spinoza gave a definition of the coherence between bodies in the universe that seems to be inconsistent both with what he had written in a previous letter to Boyle (1661) and with what he would later write in his main work, the Ethics (1677). Specifically, Spinoza’s 1665 letter to Boyle asserts that bodies can adapt themselves to another body in a non-mechanistic way and absent the agency of an (...) external cause. This letter – Letter 32 – seems, therefore, to be in clear contradiction with the metaphysical determinism that is an important and characteristic element of his philosophy. This article suggests that the viewpoint expressed by Spinoza in Letter 32 may have been inspired by a spectacular discovery made by Christiaan Huygens a few months prior, namely, the self-synchronization of pendulum clocks. As I argue in this article, this new, hypothesized link to Huygens’ pendulum experiments may account for Spinoza’s otherwise paradoxical answer to Boyle in Letter 32. (shrink)

The distinctive features of the properties and conditions of research into phenomena of the microworld relative to investigations into phenomena of the macroworld created so strong an impression in important circles that people have even begun to speak of a special logic of the microworld differing fundamentally from that familiar logic which came into being on the basis of the study of phenomena of the macroscopic world. The reader can find information about this in the works of Kuznetsov , Piatnitsyn (...) , and the present author. (shrink)

In this article, the main definitions and differentiation concepts of neutrosophic fuzzy environment will be reviewed. This article will introduce an analytical methodology for solving the second-order linear ordinary differential problem with neutrosophic fuzzy boundary values, this analysis will be under generalized Hukuhara differentiability to show the analytical solutions from a different point of view for the uncertain system, some of these solutions may be decreasing in uncertainty or maybe reflecting the behavior of some real-world systems better. Some applications and (...) numeral examples will be solved to show the behavior of the solution. (shrink)

Verse work on the author's philosophical experiences; includes interpretive notes.