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Emerging Science Journal

ESJ
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Published by Ital Publication

ISSN : 26109182 EISSN : - DOI : -

Core Subject : Social,

Environmental Science

Emerging Science Journal is not limited to a specific aspect of science and engineering but is instead devoted to a wide range of subfields in the engineering and sciences. While it encourages a broad spectrum of contribution in the engineering and sciences. Articles of interdisciplinary nature are particularly welcome.

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Articles 803 Documents

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Commercial Security’s’ Effect on Security of Kenyans in Private Venues Gerald Peter Mutonyi; Ann Sirera
Emerging Science Journal Vol 2, No 4 (2018): August
Publisher : Ital Publication

The strategic interplay between the Commercial security industry and security is complex. The realists view the provision of security as a fundamental obligation of the state. But to the liberalists, the pursuance of security can be achieved with the involvement of other actors offering the same. The question of whether the growing recognition of commercial security industry has marked an important shift in the norm of the state monopoly on violence in Africa needs answers. Despite this development, few studies have evaluated the effect of commercial security on security in Private Venues. Using Situational crime prevention theory, this study sort to demonstrate the effect of commercial security on security of Kenyans in Private Venues. The study adopted a cross sectional survey design, and was carried out in Nairobi with the target population of the adult residents in Nairobi. Customers and management of the commercial security industry were purposively sampled, whereas the general public and the security guards were systematically sampled. Questionnaire, interviews and structured observation were used to collect data. Qualitative data was analysed thematically. While quantitative data was analysed using descriptive statistics like percentages, average and mean, and pie charts. There is an accepted positive effect on security of Kenyans in private functions and venues where commercial security present. But efficiency would be achieved if, the commercial security personnel provide indiscriminate security responses where there is a breach. Grey area needing legal backing were identified as: arming of the commercial security personnel, proper uniforms and kitting, and training and skills. It is expected that the findings of this study will be of great significance to the commercial security industry stakeholders in their quest to provide security to their customers. The findings will also be used to inform policy and practice that can beneficial to national security in Kenya. It is also hoped to stimulate the academic community and the government of Kenya towards more research in the field, and for the formulation of policies that will improve the general security of the citizens.

Review and Comparison of Routing Metrics in Cognitive Radio Networks Alaleh Asghary Astaneh; Solmaz Gheisari
Emerging Science Journal Vol 2, No 4 (2018): August
Publisher : Ital Publication

In this paper, cognitive radio network is briefly introduced as well as routing parameters in cognitive radio networks. Due to lack of Spectrum, using not efficient methods of allocating static spectrum, in cognitive radio networks dynamic accessing spectrum is functional. Utilizing opportunistic a Spectrum requires recognition of routing parameters and metrics in cognition radio networks, which means considering fulfilling the minimum requirements of quality of service (QOS) secondary users need to use the allowed range of primary (main) users. Since primary users are prior to use the spectrum, when primary and secondary users coexist, they need to monitor the bandwidth of the authorized spectrum. One of the most important stages to excess the dynamic spectrum is to explore it. Detection of the presence of the authorized users by unauthorized users is one of the things done in this stage, which is called spectroscopy. In the next stage, we used the analyzed information I was spectroscopy, to decide on accessing the spectrum. cognition radio is defined as a smart wireless communication system, which is aware of the environment and changes its job variables like power forward, type of modulation, carrier frequency etc. using environment learning. For further explaining routing metrics, we try to compare routing metrics in cognitive radio networks and wireless network and analyze its challenges in one-way routing and in multi-route routing.

Daoism as the Philosophic Foundation of Chinese Economic Reform: a Conjecture Edward J Romar
Emerging Science Journal Vol 2, No 4 (2018): August
Publisher : Ital Publication

The reforms of Deng Xiaoping and the opening of China in the 1970s were predicated on something called “socialism with Chinese Characteristics”. Deng never explained its meaning in detail. This paper offers a conjecture suggesting that Daoism is the philosophical foundation of Chinese economic reform. Daoism is eminently Chinese and through the concepts of wu wei, yin/yang, qi and others from The Tao Te Ching, the Zhuangzi, and Pheasant Cap Master it offers the flexibility to organize markets within the Chinese context. The paper suggests how a Daoist philosophic foundation supports China’s rise both economically and politically. It concludes with the observation that China’s long term objective may be something like Zhuangzi’s and Pheasant Cap Master’s unity and that the West’s “end of history” may have past while the Chinese may have just begun.(B)y Marxism we mean Marxism that is integrated with Chinese conditions, and by socialism we mean a socialism that is tailored to Chinese conditions and has a specifically Chinese character….Socialism means eliminating poverty. Pauperism is not socialism, still less communism (Deng Xiaoping, Socialism with Chinese Characteristics [1]).…China’s rise is not the rise of an ordinary state, but the rise of a country, sui generis, a civilizational state, a new model of development and a new political discourse which questions many of the Western assumptions about democracy, good governance and human rights, and all this may usher in a wave of change unprecedented in human history. Zhang Weiwei, The China Wave [2]).

Phytocompounds, Heavy Metal and Mineral Contents in honey Samples from Selected Markets in the Kumasi Metropolis Nkansah, Marian Asantewah; Shamsuâ€“Deen, Mariam; Opoku, Francis
Emerging Science Journal Vol 2, No 5 (2018): October
Publisher : Ital Publication

The present study sought to determine the content of calcium (Ca), magnesium (Mg), lead (Pb), iron (Fe), zinc (Zn) and eight phytocompounds in honey collected from twentyâ€“three markets in the Kumasi Metropolis of Ghana. The mineral and heavy metal contents were analysed using the Atomic Absorption Spectrometry (novAAÂ® 400P) and phytoconstituents by standard qualitative procedures. This study revealed that Mg and Ca concentrations ranged from 3.61â€“15.93 mg/kg and not detectedâ€“3.24 mg/kg, respectively. The concentrations of Ca and Mg were within the Recommended Dietary Allowance and Nutrient Reference Value respectively; an indication that the honey can be used as food source rich in Mg and Ca. The levels of Fe, Zn and Pb were lower than the limit of detection, indicating their safety from metal contaminants. A considerable number of phytoconstituents were detected. In general, the results obtained indicate that the honey samples collected from the Kumasi metropolis are of good quality.

Provides a New Way to Enhance Security in the Linux Operating System Hamid Reza Ganji; Kiarash Aghakhani
Emerging Science Journal Vol 2, No 5 (2018): October
Publisher : Ital Publication

The security of the configuration of files in the Linux operating system depends on many factors that can be referenced to the system level and the applicable level. The most important thing about the security of Linux operating systems is its dynamism, for example, when you secure your Linux system, it will not stay safe forever, because applications and cyber criminals through new threats and/or new exploits that are packaged Systems or applications that cause the operating system to become unsafe, for this reason, we need a secure operating system. The main purpose of this article is to provide a new way to enhance the security of the Linux operating system. For this purpose, how can simple, continuous, and practical Linux environment be secured, solutions are presented, also based on performance analysis of the proposed method and evaluation parameters for existing systems against the proposed system, the superiority of this method is introduced.

Response Site Analyses of 3D Homogeneous Soil Models Davide Forcellini; Marco Tanganelli; Stefania Viti
Emerging Science Journal Vol 2, No 5 (2018): October
Publisher : Ital Publication

The seismic excitation at the surface can be determined through Site Response Analyses (SRA) as to account for the specific soil properties of the site. However, the obtained results are largely affected by the model choice and setting, and by the depth of the considered soil layer. This paper proposes a refined 3D analytical approach, by the application of OPENSEES platform. A preliminary analysis has been performed to check the model adequacy as regards the mesh geometry and the boundary conditions. After the model setting, a SRA has been performed on various soil profiles, differing for the shear velocity and representing the different soil classes as proposed by the Eurocode 8 (EC8). Three levels of seismic hazard have been considered. The seismic input at the bedrock has been represented consequently, through as much ensembles of seven ground motions each, spectrum-compatible to the elastic spectra provided by EC8 for the soil-type A (bedrock). Special attention has been paid to the role of the considered soil depth on the evaluation of the surface seismic input. Different values of depth have been considered for each soil type and seismic intensity, in order to check its effect on the obtained results.

Health and Survival of Moon Jellies (Aurelia Aurita) in Hand-Built Pseudo-Kreisel Aquaria Kathryn Schweizer; Christine Geiger; Adam Pillot; Melissa Meadows
Emerging Science Journal Vol 2, No 5 (2018): October
Publisher : Ital Publication

Jellies are typically considered difficult organisms to raise in the lab by many scientists. This is due to their requirements for constant water current and the absence of corners. In the wild, jellies such as moon jellies (Aurelia aurita) rarely encounter habitats outside of the open ocean where they are part of the plankton, so they are not adapted to navigate obstacles or get out of small spaces such as the corners of aquaria. In order to conduct an experiment utilizing live moon jellies to assess their utility in bioremediation of oil spills, we designed and built 4 pseudo-kreisel aquaria to house our jellies using a limited budget and many readily-available materials. Here, we present the methods used to construct these aquaria inexpensively (important for undergraduate research!) and evidence of their effectiveness in long-term housing of live jellies so that other researchers interested in jelly research can construct similar housing. Briefly, we removed the corners from 10 gallon aquaria and also provided for continuous circular water currents by adding quarter pieces of the sides of 5 gallon buckets attached via silicon sealant. Current was provided by spray bars that provided even water flow in all areas of the aquaria, driven by pumps in the external sump and filtration systems. We built the sump/filtration systems using 5-gallon buckets containing bio-balls and filter floss. Water was delivered to the sumps via PVC overflow plumbed into the aquaria via a bulkhead set into the glass at the desired water level. The overflows were covered with a small piece of fine screen and directly behind the spray bars in order to prevent jellies from becoming stuck as water leaves the system for filtration. Results of husbandry including survival and indicators of jelly health such as pulsing rate and holes in their bells over approximately 3 months will be presented.

Exploring Existence of Host-Guest Inclusion Complex of β-Cyclodextrin of a Biologically Active Compound with the Manifestation of Diverse Interactions Habibur Rahaman; Niloy Roy; Aditi Roy; Samapika Ray; Mahendra Nath Roy
Emerging Science Journal Vol 2, No 5 (2018): October
Publisher : Ital Publication

The host–guest interaction of p-nitro benzaldehyde as guest β-Cyclodextrins have been investigated which have significant applications in the field of medicine such as controlled drug delivery. The 1H NMR study confirms the formation of inclusion complex while surface tension and conductivity studies support the formation inclusion complex with 1:1 stoichiometry. The stoichiometry of the inclusion complex was also supported with Job’s plot method by UV-Visible spectroscopy. FT-IR spectra and SEM study also support the inclusion process. Association constants of the inclusion complexes have been calculated using the Benesi–Hildebrand method, while the thermodynamic parameters have been estimated with the help of van’t Hoff equation.

Chemical Signals are Involved in the Detection and Preference of Food Sources in Blattella Germanica Xoana Magalí Santa Cruz; Valeria Sfara
Emerging Science Journal Vol 2, No 5 (2018): October
Publisher : Ital Publication

The German cockroach (Blattella germanica) is a cosmopolitan omnivorous species which can take nutrients from a wide variety of sources. Its condition of pest generated interest in the study of its biology, and while there are many works regarding its feeding behavior, few approaches have been made to the relevance of the chemosensory system during foraging. Objective: In this work we studied the role of chemical stimuli in the detection and preference of food sources in B. germanica using behavioral observations. Methods: Adult males were placed in a circular experimental arena where different diet types were presented individually. Parameters associated to the detection of odors (latency to the food source, number of visits to the source) were measured in an experimental time of 15 minutes. We also measured the total amount ingested determining the weight gain of each individual, as an indicator of taste evaluation of food. Findings: Insects showed a lower latency when the source emitted a larger amount of volatile compounds, so peanut butter was detected faster compared with the other diets studied. Regarding ingestion, insects spent significantly more time on the peanut butter, indicating the presence of phagostimulants such as sugars or lipids. When sugar solutions were used as food sources, the number of visits, the time spent on the source and the amount consumed was higher when increasing sugar concentration. Insects also showed preference for the solution of higher concentration, when two sugar solutions were presented simultaneously. Latency increased and the amount of sugar ingested decreased when insects´ mouthparts were chemically blocked with N-Ethylmaleimide, a general inhibitor of chemoreception. Novelty/Improvement: These results describe how cockroaches use odors to locate food sources and chemoreceptors in their mouthparts to identify diets of higher energetic value, from information regarding the concentration and quality of the food source. Understanding the feeding behavior of cockroaches allows the design of more attractive and palatable toxic gel baits enhancing their efficacy for cockroach control.

Evolution of Eye Reduction and Loss in Trilobites and Some Related Fossil Arthropods Brigitte Schoenemann
Emerging Science Journal Vol 2, No 5 (2018): October
Publisher : Ital Publication

The fossil record of arthropod compound eyes reflects different modes and occasions of eye reduction and blindness. In the best-studied fossil examples, the trilobites [trilobites: extinct arthropods, dominant during the Palaeozoic], which have an excellent geological record, eyes are primary structures, and in all known genera which lack them, eye-loss is always secondary. Once the eyes were lost, they never were never re-established. The most striking examples occur in the Upper Devonian, when two unrelated major groups of trilobites, with different kinds of eyes, underwent eye reduction and even total loss of the eyes over the same time period, undoubtedly due to long-term environmental change. One reason is that a mud blanket spread over a vast area, there was no firm substrate, and many trilobites became small and many became endobenthic, reducing or losing their eyes in the process. Toxic environmental conditions may also have had an effect. Certain coeval forms remained, however, which still possess perfectly good compound eyes. Either they found vacant refuges where they could survive, or alternatively their visual systems were elaborate enough to adapt to the changing conditions. Another inducement for evolving small, reduced compound eyes is to become a tiny organism oneself, with simply not enough space to establish a regular and functional compound eye, and in such minaturised eyes special adaptations for capturing enough photons are necessary. Thus very small compound eyes often establish wide acceptance angles of their ommatidia, collecting light over large angular ranges of space and it is beneficial to have a wide rhabdom provided that it is short, has a wide lens diameter, and perhaps even possess highly sensitive receptor cells. We find such a miniaturised system in the first recorded planktonic trilobite. Another kind of reduction of a compound eye, or parts of it, also occurs, if selective pressure claims for a high specialisation of eyes that results in several facets fusing into a single functional unit. This probably can be found in phacopid trilobites, ~400 million years old. Here the enlarged aperture of a resulting large lens may allow vision under dim light conditions such as at greater depth. The fossil record gives relatively little evidence about parasites, which often have reduced eyes. Agnostida are blind relatives of trilobites which lived during the Cambrian and Ordovician. An early suggestion was that some of these were parasitic, but this was never commonly adopted. Finally penstastomids (Crustacea), worm-like parasitic organisms, already have been blind from the Cambrian (~487Ma).

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