77,357 research outputs found
Democratic Welfare State as Visualised by the Quaid-i-Azam
No full textThe Quaid-i-Azam, Muhammad Ali Jinnah, is known more for his political achievements than for his socio-economic thought. Last two decades, however, have seen a continuous flow of books containing his speeches, statements, messages, interviews, discussions in pre-independence legislative bodies and addresses in the Constituent Assembly of Pakistan. Even a cursory look at this vast literature shows that he was not only concerned with the political aspect of sub-continent’s independence movement but also consistently expressed his views regarding the socio-economic uplift of masses in general and Muslim society in particular. These views in their bare essentials reflect a remarkable continuity of approach from the earlier days of his political career to the period he occupied the position of Governor General of Pakistan. Actually, he became more and more expressive and forthright as the prospects of Pakistan coming into existence became bright. When Pakistan finally appeared as a sovereign nation on the map of the world, he openly rejected the prevailing economic system as having failed to do justice between man and man and to eradicate friction from the international field.
Health impact of dietary selenium nanoparticles on mahseer fish
No full textQuaid I Azam Univ, Fisheries & Aquaculture Lab, Dept Anim Sci, Fac Biol Sci, Islamabad, PakistanUNESP, Ctr Aquicultura, Jaboticabal, SP, BrazilQuaid I Azam Univ, Natl Ctr Phys, Islamabad 45320, PakistanUNESP, Ctr Aquicultura, Jaboticabal, SP, Brazi
Galois Ring GR (2(3),8) Dependent 24 x 24 S-Box Design: An RGB Image Encryption Application
No full textAn S-box is based on Boolean functions which are essentially the foundation of symmetric cryptographic systems. The Boolean functions are used for S-box designing in block ciphers and exploited as nonlinear components. Boolean functions with optimal nonlinearity and upright cryptographic stuffs play a significant role in the design of block ciphers. Traditionally 8x8 S-box is a 16x16look up table over Galois field GF and has 112 feasible upper bonds for nonlinearity. A 24x24 S-box over Galois field GFis not viable as the computer memory does not support it. In this paper for the construction of 24x24S-box a rout is adopted via maximal cyclic subgroup of the multiplicative group of units of Galois ring GR The newly constructed S-box has much higher confusion capability than any of 8x8 S-box. To judge the impact of this new 24x24 S-box an RGB color image encryption application is demonstrated. Initially, in the proposed encryption scheme we use 24x24 S-box for confusion in RGB channels of plain image, however for diffusion linear permutation P= is operated and then by the use of exclusive-or an encrypted image is obtained. Thus, we introduce a novel technique by which 24 binary bits are divided into 3 bytes and each one deals R, G and B channel of the color image separately. A comparison with chaos and DNA based image encryption schemes shows the performance results of this novel RGB image encryption and observed as meeting the standard optimal level. Hence this 24x24 S-box dependent encryption method replaces 8x8S-box based RGB color image encryption scheme.Quaid I Azam Univ, Dept Math, Islamabad, PakistanInst Space Technol, Dept Appl Math & Stat, Islamabad, PakistanQuaid I Azam Univ, Dept Comp Sci, Islamabad, PakistanUniv Estadual Paulista, Dept Matemat, Sao Jose Do Rio Preto, SP, BrazilUniv Estadual Paulista, Dept Matemat, Sao Jose Do Rio Preto, SP, Brazi
Effects of dietary inclusion of vitamin C on immune and antioxidant defence system in captive reared juvenile mahseer, Tor putitora (Hamilton, 1822)
No full textThe present trial was conducted to evaluate the effects of dietary L-ascorbyl-2-polyphosphate (vitamin C) on immune and antioxidant defence system in captive-reared juvenile mahseer (Tor putitora (Hamilton, 1822)). The experiment consisted of four treatments (3 replicates each), which received four semi-purified diets containing 0, 100, 200 and 300 mg.kg-1 of vitamin C. A total of 120 fish with an average initial body weight, 2.27 ± 0.01 g were distributed among 12 tanks (10 fish per tank). At the end of the 70-day experiment, all fish of each group were subjected to hypoxia stress for 48 h. Fish fed 300 mg.kg-1 vitamin C showed significantly increased (P < 0.05) serum lysozyme activity in response to hypoxia stress, followed by 200 and 100 mg.kg-1 vitamin C. Similar results were observed for glutathione peroxidase (GSH-Px), glutathione reductase (GSR) and superoxide dismutase (SOD) activity. After hypoxia, malondialdehyde (MDA) concentration was considerably reduced (P < 0.05) in fish fed 300 mg.kg-1 vitamin C. These results indicated that in stressful conditions feeding diets supplemented with 300 mg.kg-1 vitamin C would be better than 200 and 100 mg.kg-1 vitamin C, to obtain the optimum immune and antioxidant status of captive-reared juvenile mahseer.Quaid-i-Azam UniversityDepartment of Animal Sciences Faculty of Biological Sciences Quaid-i-Azam UniversityAquaculture Center São Paulo State University (UNESP), Via de Acesso Prof. Paulo Donato Castellane s/nAquaculture Center São Paulo State University (UNESP), Via de Acesso Prof. Paulo Donato Castellane s/
Development Priorities of the Founding Father of Pakistan
No full textA close reading of the speeches and statements of the founding father of Pakistan, Quaid-i-Azam Muhammad Ali Jinnah, brings forth a striking consistency of understanding and approach towards priorities that the nation must determine to move steadily on the road to progress and development. These priorities were—in that order—education, industrial development and defence. Political historians generally present descriptive analyses of what appear to be radically different phases of the Quaid’s passage to lead the nation to its destiny—freedom. But at no point in any phase does one come across a weakening of resolve to advocate the priorities of Education, Industry and Defence—EID, for short. No better acronym of happiness would be possible for the Muslims of British India, EID being happiness and progress for them literally as well as religiously. After the adoption of the Pakistan Resolution in March 1940, the Quaid reiterated these priorities time and again. There is a noticeable accent in his speeches to specify the ramifications of these three pillars of progress. The most succinct statement of priorities came in March 1941. While addressing the Pakistan Session of Punjab Muslim Students Federation, the Quaid said “There are at least three main pillars which go to make a nation worthy of possessing a territory and running the government……..One is education. . . . Next, no nation and no people can ever do anything very much without making themselves economically powerful in commerce, trade and industry. And lastly, when you have got that light of knowledge by means of education and when you have made yourselves strong economically and industrially, then you have got to prepare yourselves for your defence against external aggression and to maintain internal security”.
Ward identities, B -> V transition form factors and applications
No full textLong distance effects are studied in the rare exclusive semileptonic B(d,s) -> V l(+)l(-) decays, where V denotes a K* or phi meson. The form factors, which describe the meson transition amplitudes in the effective Hamiltonian approach, are calculated by means of Ward identities, experimental constraints and extrapolated within a general vector meson dominance framework. These form factors are then compared to the ones obtained in Lattice QCD simulations, with Light Cone Sum Rules and a Dyson-Schwinger equation approach. Additionally, the B-d -> K*l(+)l(-) and B-s -> phi l(+)l(-) branching ratios are computed and the differential branching fractions are given as a function of the squared-momentum transfer.Univ Cruzeiro Sul, Lab Fis Teor & Computac, BR-01506000 Sao Paulo, SP, BrazilNatl Univ Sci & Technol, Sch Nat Sci, Dept Phys, Islamabad, PakistanUniv Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, SP, BrazilQuaid I Azam Univ, Dept Phys, Islamabad 45320, PakistanQuaid I Azam Univ, Natl Ctr Phys, Islamabad 45320, PakistanUniv Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, SP, Brazi
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
Cationic dye degradation and real textile wastewater treatment by heterogeneous photo-fenton, using a novel natural catalyst
No full textA photo-Fenton process using a local iron oxide as a natural catalyst was compared to Fenton and UV/H2O2 advanced oxidation processes for degrading crystal violet (CV) dye in aqueous solutions. The catalyst was characterized by transmission electron microscopy (TEM), energy dispersive X-ray microanalysis (EDX), Fourier transform infrared spectroscopy (FT-IR), Raman spectrum, X-ray diffraction (XRD), UV-vis spectroscopy, and Brunauer–Emmett–Teller (BET) analysis. The optical properties proved that the catalyst represents a good candidate for photocatalytic activity. The impact of different parameters (catalyst dose, initial CV concentration, initial H2O2 concentration, pH) on the photo-Fenton efficiency was evaluated. A photo-Fenton process operated under UVC light irradiation, at spontaneous pH, with 1.0 g/L of catalyst and 30 mg/L of H2O2 was the most effective process, resulting in 98% CV dye removal within 3 h. LC-MS and ion-chromatography techniques were used to identify demethylated organic intermediates during the process. Furthermore, a regeneration study of the catalyst showed its stability and reusability (after three treatment cycles, CV dye degradation decreased from 94% to 83%). Finally, the photo-Fenton process was tested in the treatment of real textile wastewater, and the effluent was found to be in compliance with standards for industrial wastewater disposal into sewerage
Role of thumb index fold in Wnt-4 protein and its dynamics through a molecular dynamics simulation study
No full textInternational audienc
A framework for hybrid simulation with online model updating suitable for hard real-time computing
No full textThe hybrid simulation method is used to test one or some components of a prototype structure subjected to a plausible loading history, accounting for their interaction with the untested ones, which are simulated numerically. If tested components have similar numerical counterparts, a possible approach to reduce simulation errors is to update the parameters of numerical substructures based on tested physical substructures. For this reason, online parameter estimation has gained the attention of the hybrid simulation community in the last decade. The term online indicates that the parameters of the identification model of the physical substructure are updated during the experiment. Main state-of-the-art middleware tools (e.g., OpenFresco and UI-SIMCOR) have been extended to support online model updating for the pseudodynamic hybrid simulation method. In this case, both numerical substructures and dynamic identification models are implemented on existing finite-element analysis software, which communicates with the middleware using a data exchange protocol with non-deterministic time schedule (e.g., TCP/IP). On the other hand, fast- and real-time hybrid simulation methods require a deterministic data exchange schedule between substructures, which imposes the adoption of hard real-time implementations. In this context, partitioned time integration is proposed to coordinate the parallel execution of simulation and model updating processes with heterogeneous sampling rates. As a result, the allocation of computational resources can leverage parallelization capabilities of multi-core CPUs
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