Internet and Users. Who is the Reader?

Internet has turned into a fundamental component of everyday life, as it plays a major role in advancing the globalization process. Globalization was fostered by the idea of creating equalaccess opportunities for all and facilitating communication worldwide. Using internet as the core platform, billions of people try to access and benefit from this opportunity through search engines, service providers, websites and social media. However, given the profound difference between internet and user’s languages, users end up on relying on search engines and tools to translate their ideas into a computer-readable language and derive information from them. In order to provide the best possible services, search engines and social media need to accumulate comprehensive data on each user’s identity. The challenge is that once they are fed with convenient information on each user, they tend to personalize the idea they grasp of him or her based on their given regulations and policies, which in the mid- and long-term results in managing users’ access to information.. By applying the reader-response theory, this paper seeks to focus on the challenges stemming from the adoption of users’ personalized profiles by Google, Facebook and Amazon as the most common part of users’ performance in internet. It also explores how the reading differences of the users and the tools result not only in personalized versions of users, but also engender an unrecognized virtual in-betweenness of users’ own perception of themselves and the tools’ perception of users

Tick Sweats

Ticks are obligatory ectoparasites of many vertebrate hosts including human. Osmoregulatory functions of ticks are crucial for the survival, especially, in the off-host ticks in arid area. We found that injection of water in the body cavity of tick immediately triggers excretion of solution through the exoskeletal cuticles, like sweating. This response occurred in a bilateral asymmetric manner; the injection on left side of the body induced the sweating on only the left half, while the injection into right side did not induce sweat. The sweating response was reduced in the injections of high osmolar Naci (1 M). This is the first description of sweating physiology in maintenance of water homeostasis in the Lone star tick

Bioactivities of Proctolin Mimetic in Drosophila melanogaster

The insect neuropeptide proctolin was originally purified for its myotropic actions on insect hindguts, however it has been shown to be distributed widely throughout arthropods. This pentapeptide, RYLPT or Arg-Tyr-Leu-Pro-Thr, is highly conserved across arthropod species. We were interested in whether observable bioactivity, physiological and behavioral changes, occurs upon the injections of proctolin or proctolin mimetic peptides. We found strong activities of proctolin and proctolin mimetic in immediate inductions of proboscis behavior and defecation. Peptidomimetics showed strong activities opening a new revenue for development of new class of insecticidal compound

Composing Distributed Data-intensive Web Services Using a Flexible Memetic Algorithm

Web Service Composition (WSC) is a particularly promising application of Web services, where multiple individual services with specific functionalities are composed to accomplish a more complex task, which must fulfil functional requirements and optimise Quality of Service (QoS) attributes, simultaneously. Additionally, large quantities of data, produced by technological advances, need to be exchanged between services. Data-intensive Web services, which manipulate and deal with those data, are of great interest to implement data-intensive processes, such as distributed Data-intensive Web Service Composition (DWSC). Researchers have proposed Evolutionary Computing (EC) fully-automated WSC techniques that meet all the above factors. Some of these works employed Memetic Algorithms (MAs) to enhance the performance of EC through increasing its exploitation ability of in searching neighbourhood area of a solution. However, those works are not efficient or effective. This paper proposes an MA-based approach to solving the problem of distributed DWSC in an effective and efficient manner. In particular, we develop an MA that hybridises EC with a flexible local search technique incorporating distance of services. An evaluation using benchmark datasets is carried out, comparing existing state-of-the-art methods. Results show that our proposed method has the highest quality and an acceptable execution time overall.Comment: arXiv admin note: text overlap with arXiv:1901.0556

Vacuum Polarization and Casimir Energy of a Dirac Field Induced by a Scalar Potential in One Spatial Dimension

We investigate the vacuum polarization and the Casimir energy of a Dirac field coupled to a scalar potential in one spatial dimension. Both of these effects have a common cause which is the distortion of the spectrum due to the coupling with the background field. Choosing the potential to be a symmetrical square-well, the problem becomes exactly solvable and we can find the whole spectrum of the system, analytically. We show that the total number of states and the total density remain unchanged as compared with the free case, as one expects. Furthermore, since the positive- and negative-energy eigenstates of the fermion are fermion-number conjugates of each other and there is no zero-energy bound state, the total density and the total number of negative and positive states remain unchanged, separately. Therefore, the vacuum polarization in this model is zero for any choice of the parameters of the potential. It is important to note that although the vacuum polarization is zero due to the symmetries of the model, the Casimir energy of the system is not zero in general. In the graph of the Casimir energy as a function of the depth of the well there is a maximum approximately when the bound energy levels change direction and move back towards their continuum of origin. The Casimir energy for a fixed value of the depth is a linear function of the width and is always positive. Moreover, the Casimir energy density (the energy density of all the negative-energy states) and the energy density of all the positive-energy states are exactly the mirror images of each other. Finally, computing the total energy of a valence fermion present in the lowest fermionic bound state, taking into account the Casimir energy, we find that the lowest bound state is almost always unstable for the scalar potential.Comment: 16 pages, 7 figure

Globalization, Anthropological PerspectiveIran, Globalization and Violence

[…] As one example to discuss globalization I would like to bring to your honorable attention my own everyday life experience in my homeland, Iran. Of course I can only be selective in my examples, to cover only topics which would be relevant to today. Whenever I have had the occasion to discuss the term globalization in my classes, the general reaction of students has been one of delight, that is, their image of this word is positive. My students represent the view of some 70 % of the Irani..