This paper deals with designing a harvesting control strategy for a predator–prey dynamical system, with parametric uncertainties and exogenous disturbances. A feedback control law for the harvesting rate of the predator is formulated such that the population dynamics is asymptotically stabilized at a positive operating point, while maintaining a positive, steady state harvesting rate. The hierarchical block strict feedback structure of the dynamics is exploited in designing a backstepping control law, based on Lyapunov theory. In order to account for unknown (...) parameters, an adaptive control strategy has been proposed in which the control law depends on an adaptive variable which tracks the unknown parameter. Further, a switching component has been incorporated to robustify the control performance against bounded disturbances. Proofs have been provided to show that the proposed adaptive control strategy ensures asymptotic stability of the dynamics at a desired operating point, as well as exact parameter learning in the disturbance-free case and learning with bounded error in the disturbance prone case. The dynamics, with uncertainty in the death rate of the predator, subjected to a bounded disturbance has been simulated with the proposed control strategy. (shrink)

Gary Becker and others have done important work to broaden the content of self interest, but have not departed from seeing rationality in terms of the exclusive pursuit of self-interest. One reason why committed behavior is important is that a person can have good reason to pursue objectives other than self interest maximization (no matter how broadly it is construed). Indeed, one can also follow rules of behavior that go beyond the pursuit of one's own goals, even if the goals (...) include non-self-interested concerns. By living in a society, one develops possible reasons for considering other people's goals as well, which takes one beyond an exclusive concentration on one's own goals, not to mention the single-minded pursuit of one's own self interest. The recognition of other people's goals may be a part of rational thought. If rational behavior may depart from the relentless pursuit of one's own goals, commitment has to be important in a theory of rationality. Furthermore, seeing the role of commitment in human behavior can have explanatory importance in allowing us to understand behavior patterns that are hard to fit into the narrow format of contemporary rational choice theory. Commitment is, thus, important both for practical reason and for causal explanation. (shrink)

And in this book the distinguished scholar Amartya Sen offers a powerful critique of the theory of social justice that, in its grip on social and political ...

本书是王森先生的遗作,如1989年出版的《中国逻辑史·唐明卷》中的《藏传因明》一章;梵文汉译的《胜论经》;梵文古写本《七句义论》校注;《正理滴论》、《中论》、《辨中边论》梵藏汉文会勘;贝叶本《俱舍论颂 》梵藏汉文索引;以及《正理滴论》梵汉对照索引等.

Colloquially, episodic memory is described as “the memory of personally experienced events”. Even though episodic memory has been studied in psychology and neuroscience for about six decades, there is still great uncertainty as to what episodic memory is. Here we ask how episodic memory should be characterized in order to be validated as a natural kind. We propose to conceive of episodic memory as a knowledge-like state that is identified with an experientially based mnemonic representation of an episode that allows (...) for a mnemonic simulation thereof. We call our analysis the Sequence Analysis of Episodic Memory since episodes will be analyzed in terms of sequences of events. Our philosophical analysis of episodic memory is driven and supported by experimental results from psychology and neuroscience. We discuss selected experimental results that provide exemplary evidence for uniform causal mechanisms underlying the properties of episodic memory and argue that episodic memory is a natural kind. The argumentation proceeds along three cornerstones: First, psychological evidence suggests that a violation of any of the proposed conditions for episodic memory amounts to a deficiency of episodic memory and no form of memory or cognitive process but episodic memory fulfills them. Second, empirical results support a claim that the principal anatomical substrate of episodic memory is the hippocampus. Finally, we can pin down causal mechanisms onto neural activities in the hippocampus to explain the psychological states and processes constituting episodic memory. (shrink)

This book develops some of the most important themes of Sen's works over the last decade. He argues in a rich and subtle approach that we should be concerned with people's capabilities rather than their resources or welfare.

Commodities and Capabilities presents a set of inter-related theses concerning the foundations of welfare economics, and in particular about the assessment of personal well-being and advantage. The argument presented focuses on the capability to function, i.e. what a person can do or can be, questioning in the process the more standard emphasis on opulence or on utility. In fact, a person's motivation behind choice is treated here as a parametric variable which may or may not coincide with the pursuit of (...) self-interest. Given the large number of practical problems arising from the roles and limitations of different concepts of interest and the judgement of advantage and well-being, this scholarly investigation is both of theoretical interest and practical import. (shrink)

Based on the 1972 Radcliffe Lectures, this book presents a systematic treatment of the conceptual framework as well as the practical problems of measurement of inequality.

This paper is about three distinct but interrelated problems: (1) the role 0f rights in moral theory, (2) thc characterization 0f agent relative values and their admissibility in consequ<—:ncc—bascd evaluation, and ( 3) the nature 0f moral evaluation 0f states 0f aihirs.

Name der Zeitschrift: Das Mittelalter Jahrgang: 20 Heft: 1 Seiten: 115-138.

17. yy. da Osmanlıların bir eyaleti olan Trablusgarb’da doğup büyüyen Ahmed b. Huseyn el-Behlûl, Mısır’ın önemli ilim adamlarından eğitim almış sonra memleketine dönmüştür. Osmanlı dönemi şairi Ahmed el-Behlûl, şairlik yönünün yanı sıra Akâid sahasında Durretu’l-‘Akâi’d, Fıkıh sahasında el-Mu‘ayyene ve el-‘Izziyye ve Arap Dili ve Edebiyatı sahasında el-Makâmetu’l-Vitriyye gibi eserleri telif ederek çeşitli sahalarla ilgilenmiş bir âlimdir. Behlûl, ed-Durru’l-Asfâ ve’z-Zebercedu’l-Musaffâ fî Medhi’l-Mustafâ ismiyle meşhur divânını tamamıyla Hz. Muhammed’i medhe tahsis etmiştir. Başta Libya olmak üzere Kuzey Afrika’da meşhur olan Divan, Kâdî ‘İyâz’ın (...) el-‘Iyâdiyye isimli manzumesine yazılmış bir tahmis olup Arap alfabesinin 29 harfinin her biriyle başlayıp beşlemelerin sonlarını da yine aynı harfle bitirdiği 29 kasideden oluşur. Şair, divanında Hz. Peygamber’in doğumu, nesebi, güzel ahlakı ve şemâili, mucizeleri, şirkin onunla ortadan kalktığı, şefaati, peygamberler arasındaki üstünlüğü, yaşadığı kutsal mekânlar, O’na duyulan özlem, O’na, Ehli Beytine ve Ashabına salavât getirmenin önemi, O’nun günah ve hatadan kurtarıcı olması ve ümmeti olmanın ayrıcalığı konularına değinmiştir. (shrink)

Leśniewski is known for his pedantry and idiosyncratic notation, which make it extremely difficult to read and follow. As reading comes before understanding, this paper therefore attempts only one...

Investor recommendation is a critical and challenging task for startups, which can assist startups in locating suitable investors and enhancing the possibility of obtaining investment. While some efforts have been made for investor recommendation, few of them explore the impact of startups’ features, including partners, rounds, and fields, to investor recommendation performance. Along this line, in this paper, with the help of the heterogeneous information network, we propose a FEatures’ COntribution Measurement approach of startups on investor recommendation, named FECOM. Specifically, (...) we construct the venture capital heterogeneous information network at first. Then, we define six venture capital metapaths to represent the features of startups that we focus on. In this way, we can measure the contribution of startups’ features on the investor recommendation task by validating the recommendation performance based on different metapaths. Finally, we extract four practical rules to assist in further investment tasks by using our proposed FECOM approach. (shrink)

I am embarrassed at being placed in the dizzying company of one of the truly great thinkers in the world. The similarities between Mill's ideas and mine partly reflect, of course, his influence on my thinking. But I also discuss some difficulties in taking Mill's whole theory without modification, since there are internal tensions within it. In a paper I published in 1967, I tried to discuss how Mill's willingness to hold on to some contrary positions depended on the nature (...) of his empirical reading of the world. I draw on that diagnosis in commenting on some of the articles here. There are some serious issues of misinterpretation in one of the articles, which I try to clarify. I also comment on Arrow's interpretation of what is involved in the idea of autonomy and on his own way of assessing freedom, and acknowledge the seriousness of the questions he raises about the value of freedom in normative political philosophy. (shrink)

When considering the threats to collective security in the twenty-first century outlined by the report of the High-Level Panel on Threats, Challenges and Change, two issues stand out.

Suitable for students and scholars, this title challenges the assumption that skepticism, rather than established belief, lies at the heart of scientific discovery.

Visually impaired people have unique perceptions of and usage requirements for various urban spaces. Therefore, understanding these perceptions can help create reasonable layouts and construct urban infrastructure. This study recruited 26 visually impaired volunteers to evaluate 24 sound environments regarding clarity, comfort, safety, vitality, and depression. This data was collected in seven different types of urban spaces. An independent sample non-parametric test was used to determine the significance of the differences between environmental evaluation results for each evaluation dimension and to (...) summarize the compositions of sound and space elements in the positive and negative influence spaces. The results suggested that visually impaired people feel comfort, safety, and clarity in parks, residential communities, and shopping streets; have negative perceptions of vegetable markets, bus stops, hospitals, and urban departments; feel anxious when traffic sounds, horn sounds, manhole cover sounds, and construction sounds occur; and prefer spaces away from traffic, with fewer and slower vehicles, with a suitable space scale, and moderate crowd density. These results provide a reference for the future design of activity venues and the planning of accessibility systems for visually impaired urban residents. (shrink)

In an interesting letter to Anna George, the daughter of Henry George, Bernard Shaw wrote: “Your father found me a literary dilettante and militant rationalist in religion, and a barren rascal at that. By turning my mind to economics he made a man of me”. I am not able to determine what making a man of Bernard Shaw would exactly consist of, but it is clear that the kind of moral and social problems with which Shaw was deeply concerned could (...) not be sensibly pursued without examining their economic aspects. For example, the claims of property rights, which some would defend and some would dispute, are not just matters of basic moral belief that could not possibly be influenced one way or the other by any empirical arguments. They call for sensitive moral analysis responsive to empirical realities, including economic ones. (shrink)

Without denying the importance of the postmodernist approach to the narrative form and rhetorical strategies of historiography, the author, one of Germany's ...