65 research outputs found
Inclusive Fitness Theory: is it still relevant in discussions of altruism?
No full textFor nearly 50 years, Inclusive Fitness Theory has provided researchers an avenue to understand altruistic interactions among individuals in a colony. It has recently come under fire by prominent academics suggesting it is unsatisfactory in describing altruism. This thesis aims to provide a history of inclusive fitness theory and dissect the arguments against the theory and in favor of it. Using scientific research articles from such publications as Nature and Science, I have collected information on the history of Inclusive Fitness Theory and the development of the theory over time. Furthermore, this thesis will also delve into the methods of testing Inclusive Fitness Theory as well as fields that have arisen due to the theory. Ultimately, using arguments made by opponents and proponents to the theory, conclusions will be drawn about the validity of the theory. While the arguments against the theory seem sound, they ultimately fail to provide alternative insights into the development of altruism in colonies, and moreover these arguments are successfully refuted by leaders in the field.M.S.Includes bibliographical referencesIncludes vitaby Daniel Wasim Awar
Refugee without refuge: Wasim, Phillip Adams, and a nation divided
No full textThis study follows on from previous work (Pedersen et al., 2008) that examined the situation of the stateless asylum seeker, Wasim. In the present study, a blog discussion stemming from an editorial about Wasim (Adams, 2008) was analysed. Participants were identified as 'Do-Gooders' and 'Do-Badders'; categories that indicate their orientation to asylum seeker debates (labels originated from the blog itself). We identified several features of the blog discussion. While similar themes and discursive devices were used by the two groups, they were used very differently. The Do-Gooders were more likely to offer accurate information about asylum seekers or Wasim and to show humani- tarian concerns for Wasim and others like him. The Do-Badders were more likely to display emotion, show the 'Phillip Adams Effect' (addressing the author of the editorial, Phillip Adams, in their sub- missions) and name-call. However, there was no significant difference with respect to whether participants addressed Wasim's situation specifically rather than focusing on the general issue of asylum seekers. The blog demonstrates, in microcosm, the divided orientation of Australians regard- ing asylum seekers
Book: Journey to God. Sufis and Dervishes in Islam
No full textJürgen Wasim Frembgen (2008) Journey to God. Sufis and Dervishes in Islam, Karachi, Oxford University Press. Since 1981, the author has been conducting ethnographic fieldwork on Islamic mysticism and Sufi cults in South Asia and more particularly in Pakistan. His latest book is a revised English version translated of the German one by Jane Ripken. Jürgen Wasim Frembgen here focuses on the role played by Sufis and dervishes in shaping social and cultural environments in the whole Muslim world ..
Influence of length and conformation of saccharide head groups on the mechanics of glycolipid membranes: Unraveled by off-specular neutron scattering
No full textThe mechanical properties of multilayer stacks of Gb3 glycolipid that play key roles in metabolic disorders (Fabry disease) were determined quantitatively by using specular and off-specular neutron scattering. Because of the geometry of membrane stacks deposited on planar substrates, the scattered intensity profile was analyzed in a 2D reciprocal space map as a function of in-plane and out-of-plane scattering vector components. The two principal mechanical parameters of the membranes, namely, bending rigidity and compression modulus, can be quantified by full calculation of scattering functions with the aid of an effective cut-off radius that takes the finite sample size into consideration. The bulkier "bent" Gb3 trisaccharide group makes the membrane mechanics distinctly different from cylindrical disaccharide (lactose) head groups and shorter "bent" disaccharide (gentiobiose) head groups. The mechanical characterization of membranes enriched with complex glycolipids has high importance in understanding the mechanisms of diseases such as sphingolipidoses caused by the accumulation of non-degenerated glycosphingolipids in lysosomes or inhibition of protein synthesis triggered by the specific binding of Shiga toxin to Gb3. (C) 2015 Author(s)
Octabuoy Concept and Spar Buoys: Non Linear Effects and Analysis
No full textThe age of the easy accessible hydrocarbon goes towards the end and new more challenging fields is the future of the oil industry. This is often synonymous with large depths where sea bed mounted platforms are highly uneconomical options. Floating platforms are therefore commonly chosen solutions.In this thesis two types of deep foating platforms are investigated; The spar buoy, a well known, well documented concept and the Octabuoy, a newly developed concept. Both platforms are analysed in two DNV programs, Wasim and Waqum. Wasim is a non linear time domain hydrodynamic program and Waqum is an impulse response function operator with the possibility of adding non linear eects. The spar bouy concept is used as a pilot test in the softwares. A recreation of the experimental results from H.A. Haslum's doctoral thesis from 2000 is attempted. The impact of non linear effects and mooring on both platforms is discussed. The subject of viscous damping is also approached.As has previously been confirmed by many researchers, the spar buoy is susceptible to non linear eects. The triggering of the Mathieu effect is shown in the Wasim analyses. Discussion is also made as to whether the spar might also be susceptible to large excitations due to second order difference frequency interactions between surface waves and body motions. Both these effects happen at low frequencies where radiation damping is low. Viscous damping is therefore of importance. From previous research mooring is found to be important to avoid the Mathieu effect by increasing the damping and moving pitch periods out of the danger zones.After analysing the spar buoy, the Octabuoy's motion characteristics are tested in mild to severe sea states in both softwares. Non linear effects are found to be significant in the vertical rotational degrees of freedom. The heave motion however seems relatively unaffected by non linear effects. Since Wasim models the free surface linearly, what makes the pitch/roll motion affected by non linearities is found to be either non linear hydro statics or non linear Froude-Krylov forces. The Octabuoy is designed to avoid the variation on hydrostatic stiffness. However, the deadrise angle is 10 degrees larger than the ideal angle. Whether this is what leads to non linear pitch/roll motion is not known at this stage.Two softwares are used in the thesis. Wasim has very long CPU time but calculates accurately and detailed information is easily accessed with for instance the Wasim application ForceInspector. Waqum is very quick, with CPU time in the order of minutes. The program requires an experienced user who knows what must be included for a complete analysis. There are uncertainties about the results from Waqum analysis and more verication is needed for the author to feel confident about the software.To conclude, the programs might work well together. Much can be tested quickly in Waqum, and then final configurations can be run more thoroughly in Wasim. It is the experience of the author that at least until the new version of HydroD is finished, running time domain analysis in Wasim should be done through scripting. This gives a larger control over the actual input and might decrease the chance for error.Keywords: Octabuoy, Spar Buoy, Non Linear Effects, Mooring, Wasim, Waqum
Capital cost expenditure of high temperature latent and sensible thermal energy storage systems
No full textFragmented Huffman-Based Compression Methodology for CNN Targeting Resource-Constrained Edge Devices
No full textIn this paper, we introduce a fragmented Huffman compression methodology for compressing convolution neural networks executing on edge devices. Present scenario demands deployment of deep networks on edge devices, since application needs to adhere to low latency, enhanced security and long-term cost effectiveness. However, the primary bottleneck lies in the expanded memory footprint on account of the large size of the neural net models. Existing software implementation of deep compression strategies do exist, where Huffman compression is applied on the quantized weights, reducing the deep neural network model size. However, there is a further possibility of compression in memory footprint from a hardware design perspective in edge devices, where our proposed methodology can be complementary to the existing strategies. With this motivation, we proposed a fragmented Huffman coding methodology, that can be applied to the binary equivalent of the numeric weights of a neural network model stored in device memory. Subsequently, we also introduced the static and dynamic storage methodology on device memory space which is left behind even after storing the compressed file, that led to a big reduction in area and energy consumption of approximately 38% in case of dynamic storage methodology in comparison with static one. To the best of our knowledge, this is the first study where Huffman compression technique has been revisited by applying it to compress binary files, from a hardware design perspective, based on multiple bit pattern sequences, to achieve a maximum compression rate of 64%. A compressed hardware memory architecture and a decompression module design has also been undertaken, being synthesized at 500 MHz, using GF 40-nm low-power cell library with a nominal voltage of 1.1 V achieving a reduction of 62% dynamic power consumption with a decompression time of about 63 microseconds (μ s) without trading-off accuracy. © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature
Paroriverutus Carbonell and Coomans 1982
No full textParoriverutus This genus was described by Carbonell and Coomans (1982), with P. ivorensis from the Ivory Coast as its type and only species. The new taxon, morphologically close to Oriverutus, was separated from this (p. 899) “in having a longer odontostyle, more posterior position of guiding ring, more posterior position of S 1 N 1 and S 1 O 2, less developed glandular tissue at the pharyngo-intestinal junction and much longer tail”. After describing three new Oriverutus species with comparatively long odontostyle, weakly developed glandular tissue near the cardia and/or conical elongate caudal region, Ahmad and Siddiqi (1997) considered that differences between both genera were not enough to maintain separate generic status, synonymised Paroriverutus with Oriverutus, and transferred P. ivorensis to Oriverutus. This action was accepted by Andrássy (2002, 2009). The excellent original description of Paroriverutus allows re-evaluating and updating its comparison with Oriverutus. Three relevant features of this genus, namely lip region hemispherical with completely fused lips, guiding ring double and tail long in both sexes (196– 232 µm, c = 6.2–6.9, c' = 8.4–9.0 in females), conform to a morphological pattern that significantly differs from that observed in Oriverutus and support the separation of both taxa. Consequently, Paroriverutus is considered to be a valid taxon, distinguishable from Oriverutus by its lip region hemispherical with amalgamated (versus distinctly separated, lobe-like) lips, double (versus simple) guiding ring, and longer caudal region (> 190 versus <160 µm). Andrássy (1971) described the new species Drepanodorylaimus macramphidius from Angola, which, three decades later (2002), was transferred to Oriverutus by the same author. This species is characterized by, among other features, its lip region with amalgamated lips, double guiding ring and long female tail (152 µm, c = 8.3, c' = 9.5), which is very similar to those found in Paroriverutus pattern.Published as part of Peña-Santiago, Reyes, Liébanas, Gracia & Ahmad, Wasim, 2014, Taxonomy of the genus Oriverutus Siddiqi, 1971 (Nematoda: Dorylaimida: Nordiidae), pp. 1253-1278 in Journal of Natural History 48 (21) on page 1264, DOI: 10.1080/00222933.2013.861942, http://zenodo.org/record/400689
Proof Without Words: Arithmetic Mean / Geometric Mean Inequality
No full textThe author proves almost wordlessly the Arithmetic Mean / Geometric Mean Inequality
Information Technology Usage and Performance of European Enterprises: An Impirical & Policy Analysis
No full textTechnology, Policy and Managemen
- …
