3,708 research outputs found
Author and Activist Derrick Jensen
No full textplenary talk at the Michigan Social Justice Conference 2009Derrick talks about his book Endgame, in which he outlines the reasons for the collapse of industrial capitalism and the destruction of the environment.Progressive Alliance of Students at UMhttp://deepblue.lib.umich.edu/bitstream/2027.42/62080/2/DerrickJensen-2009apr04-QandA.mp4http://deepblue.lib.umich.edu/bitstream/2027.42/62080/1/DerrickJensen-2009apr04-talk.mp
A Note on the Jensen-Gould Convolutions
No full textAbstractWith the aid of a recent result obtained by the first author, an expression is derived which unifies the well-known Jensen and Gould formulas.</jats:p
On the Ulam stability of Jensen and Jensen type mappings on restricted domains
No full textIn 1941 Hyers solved the well-known Ulam stability problem for linear mappings. In 1951 Bourgin was the second author to treat this problem for additive mappings. In 1982-1998 Rassias established the Hyers-Ulam stability of linear and nonlinear mappings. In 1983 Skof was the first author to solve the same problem on a restricted domain. In 1998 Jung investigated the Hyers-Ulam stability of more general mappings on restricted domains. In this paper we introduce additive mappings of two forms: of "Jensen" and "Jensen type," and achieve the Ulam stability of these mappings on restricted domains. Finally, we apply our results to the asymptotic behavior of the functional equations of these types. © 2003 Elsevier Science (USA). All rights reserved
On the Ulam stability of Jensen and Jensen type mappings on restricted domains
No full textAbstractIn 1941 Hyers solved the well-known Ulam stability problem for linear mappings. In 1951 Bourgin was the second author to treat this problem for additive mappings. In 1982–1998 Rassias established the Hyers–Ulam stability of linear and nonlinear mappings. In 1983 Skof was the first author to solve the same problem on a restricted domain. In 1998 Jung investigated the Hyers–Ulam stability of more general mappings on restricted domains. In this paper we introduce additive mappings of two forms: of “Jensen” and “Jensen type,” and achieve the Ulam stability of these mappings on restricted domains. Finally, we apply our results to the asymptotic behavior of the functional equations of these types
A Mixed-Method Approach for Quantifying Illegal Fishing and Its Impact on an Endangered Fish Species
No full textIllegal harvest is recognized as a widespread problem in natural resource management. The use of multiple methods for quantifying illegal harvest has been widely recommended yet infrequently applied. We used a mixed-method approach to evaluate the extent, charac- ter, and motivations of illegal gillnet fishing in Lake Hovsgol National Park, Mongolia and its impact on the lake’s fish populations, especially that of the endangered endemic Hovsgol grayling (Thymallus nigrescens). Surveys for derelict fishing gear indicate that gillnet fishing is widespread and increasing and that fishers generally use 3–4 cm mesh gillnet. Interviews with resident herders and park rangers suggest that many residents fish for subsistence during the spring grayling spawning migration and that some residents fish commercially year-round. Interviewed herders and rangers generally agree that fish population sizes are decreasing but are divided on the causes and solutions. Biological monitoring indicates that the gillnet mesh sizes used by fishers efficiently target Hovsgol grayling. Of the five species sampled in the monitoring program, only burbot (Lota lota) showed a significant decrease in population abundance from 2009–2013. However, grayling, burbot, and roach (Rutilus ruti- lus) all showed significant declines in average body size, suggesting a negative fishing impact. Data-poor stock assessment methods suggest that the fishing effort equivalent to each resident family fishing 50-m of gillnet 11–15 nights per year would be sufficient to over- exploit the grayling population. Results from the derelict fishing gear survey and interviews suggest that this level of effort is not implausible. Overall, we demonstrate the ability for a mixed-method approach to effectively describe an illegal fishery and suggest that these methods be used to assess illegal fishing and its impacts in other protected areas.Peer reviewe
About the sharpness of the Jensen inequality
No full textThe main aim of this paper is to give an improvement of the recent result on the sharpness of the Jensen inequality. The results given here are obtained using different Green functions and considering the case of the real Stieltjes measure, not necessarily positive. Finally, some applications involving various types of f-divergences and Zipf–Mandelbrot law are presented. © 2018, The Author(s)
Regularity points and Jensen measures for R(X)
No full textWe discuss two types of `regularity point', points of continuity and R-points for Banach function algebras, which were introduced by the first author and Somerset in [16]. We show that, even for the natural uniform algebras R(X) (for compact plane sets X), these two types of regularity point can be different. We then give a new method for constructing Swiss cheese sets X such that R(X) is not regular, but such that R(X) has no non-trivial Jensen measures. The original construction appears in the first author's previous work. Our new approach to constructing such sets is more general, and allows us to obtain additional properties. In particular, we use our construction to give an example of such a Swiss cheese set X with the property that the set of points of discontinuity for R(X) has positive area
New refinement of the Jensen inequality associated to certain functions with applications
No full textThis article proposes a new refinement of the celebrated Jensen inequality. Some refinements have been obtained for quasi-arithmetic means, Hölder and Hermite–Hadamard inequalities. Several applications are given in information theory. A more general refinement of Jensen inequality is presented associated to n functions. © 2020, The Author(s)
Anthony K. Jensen; An Interpretation of Nietzsche's On the Uses and Disadvantages of History for Life
No full textAnthony K. Jensen has successfully undertaken an essential project for the fields of Nietzsche studies and philosophy of history. In his interpretation of Nietzsche's second "Untimely Meditation," On the Uses and Disadvantages for Life[1] (henceforth HL), he demonstrates an attention to detail and meticulousness sometimes bordering on obsessiveness. This textual work is based on Jensen's comprehensive familiarity with the philosophical, philological, and historiographic culture in which Nietzsche was trained and to which he was in part responding. Unlike many Anglophone philosophers interested in Nietzsche, Jensen is fully at home with German language and idiom. He combines this linguistic facility with philological expertise and encyclopedic archival research to bring sober clarity to a field often plagued by flights of interpretive speculation. Jensen is knowledgeable of not only the Anglophone but also the Germanophone secondary literatures, and he uses this expertise like a wide-angle lens to give his readers a synoptic perspective on the last thirteen decades of reactions to and interpretations of HL. I hasten to add, though, that his monograph is not simply a summary of the production, content, and reception of one of Nietzsche's early works; it is also a judicious philosophical evaluation of Nietzsche's views and arguments. It may not be the last word on HL, but the prospect of adding anything new and valuable is now daunting.Ethics & Philosophy of Technolog
Extended Hyers-Ulam stability for Cauchy-Jensen mappings
No full textIn 1940, Ulam proposed the famous Ulam stability problem. In 1941, Hyers solved the well-known Ulam stability problem for additive mappings subject to the Hyers condition on approximately additive mappings. In 2003-2006, the last author of this paper investigated the Hyers-Ulam stability of additive and Jensen type mappings. In this paper, we improve results obtained in 2003 and 2005 for Jensen type mappings and establish new theorems about the Ulam stability of additive and alternative additive mappings. These stability results can be applied in stochastic analysis, financial and actuarial mathematics, as well as in psychology and sociology
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