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Council for Innovative Research en-US JOURNAL OF ADVANCES IN NATURAL SCIENCES 2393-9257 <p>Authors retain the copyright of their manuscripts, and all Open Access articles are distributed under the terms of the&nbsp;<a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution License</a>, which permits unrestricted use, distribution, and reproduction in any medium, provided that the original work is properly cited..</p> Annual Reviewer Acknowledgement https://cirworld.com/index.php/jns/article/view/7658 <p>The editorial team of the journal would like to thank the reviewers for their work in referring manuscripts during 2018.</p> Kewen Zhao ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-08-31 2018-08-31 5 Biomonitoring and Inter-Annual Variation of Soil Mite (Acari) Diversity and Community Structure in Lamto Guinean Savannah (Co´te d'Ivoire) Submitted to Different Fire Regimes https://cirworld.com/index.php/jns/article/view/7097 <p>The objective of the study conducted in the Lamto Guinean savannah situated at 165 km northwest of Abidjan, Cote d'Ivoire consisted to assess the changes in soil mite abundance, diversity and community structure specific to the second fire cycle applied in 2015, as well as the inter-annual variation between the two fire cycles (2014 and 2015). Three study sites (Salty marigot, Plateau and North piste) were selected in shrub savannah, where on each, three adjacent stands of 100 m x 50 m formerly delimited were considered. The three fire regimes (early, mid-season, and late fire) were respectively applied on the three sites and stands. Thus, 135 soil cores (5 soil cores x 3 sampling periods x 3 fire regimes or stands x 3 sites) were used for mite extraction. 108 soil cores were taken at two upper layers (0-5 and 5-10 cm) for determination of the bulk density and water content. Whatever the fire regimes, the mean density of soil mites decreased after the fire application. The highest value of density was observed through the early fire (1,715 ± 327 ind.m<sup>-2</sup>) whereas the lowest value was recorded during the mid season fire (1,433 ± 153 ind.m<sup>-2</sup>). 41 species had been recorded along the three fire regimes and distributed as follows: early fire 34 species, mid season fire 20 species, and late fire 13 species. The mean species richness of soil mites changed significantly across the fire regimes, and reduced after the fire application, except for the mid season fire. The Simpson diversity index was significantly modified across the fire regimes, and increased after the fire application. Beyond to 24 specialist species, over 50% of the species observed before the burns were rediscovery after the fire application, and could explain this variation. The inter-annual variation of soil mites showed that the density (early fire, mid season fire, and late fire), mite richness (early fire), and diversity (early fire and late fire) increased whereas the mite richness (mid season fire and late fire), and diversity (mid season fire) decreased, respectively, during 2015-burn compared to the previous cycle (2014-burn). The rebound of soil mite parameters during the second fire cycle could be assigned (i) to litter and woody debris, which burn in a mosaic, reflecting local fire intensity, (ii) improving of stand complexity and canopy structure, and (iii) fire tolerance of mites.</p> K. Julien N'dri Kanvaly Dosso Aya B. N'Dri Rodolphe Arnaud G. N'Da Mouhamadou Kone A. Kone N'Golo A. Seka Fabrice K. Pokou Pacome ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-03-14 2018-03-14 5 322 341 10.24297/jns.v5i1.7097 The Effects to Trend the Suitable OS Platform https://cirworld.com/index.php/jns/article/view/7528 <p>Technically, software is a part of electronic devices that is responsible for managing hardware. The signaling communication between hardware and software ultimately controls electronic devices, and is known as Operating System (OS). For the purpose of selecting the best platform for clients, users should study functionalities, securities, graphic interfaces and usability of the different OS platforms.&nbsp; Therefore, this research focuses on choosing the suitable OS platform for user in academic and non-academic environments, according to demanding users’ companionability. It also explains the first type of OS which can be utilized openly. In addition to that, it concentrates on some general significant aspects that are useful for OS users.</p> Aso Mohammed Aladdin Yad N. Bakir Sarwar I. Saeed ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-07-30 2018-07-30 5 342 351 10.24297/jns.v5i1.7528 An Overview on Security Schemes Based on Elliptic Curve for Cloud-Iot https://cirworld.com/index.php/jns/article/view/7861 <p>The Internet of things appears as a solution in order to connect people around the world. With this concept of interconnection, sharing and dissemination of information between different physical objects. Many objects and services in different fields will be created, such as smart homes, e-health, transport and logistics that will make our everyday needs easier. The main characteristic of a connected object is that it must be identifiable, using technologies such as RFID (Radio-Frequency Identification), must interact with the environment by adding sensory techniques, and finally a connected object must be able to communicate with others. The evolution of Internet of things, increase the number of connected objects. Devices with sensors, generate a huge number of data. With this evolution, the big questions come! how can we control this big data? Cloud Computing a notion that is not newer than the IoT concept, but it's a revolution has steadily been gaining ground. It's a technology that offers to end users a great services in terms of storage, elasticity, analyzing data and other services . In this paper, we cite the benefits of integrating Cloud Computing and Internet of things to manage data provided by physical object and security difficulties that may have this convergence. We also present an overview of the security algorithms proposed in the literature, based on elliptic curves, in order to secure communication between smart objects and cloud computing.</p> Amrani Ayoub Rafalia Najat Jaafar Abouchabaka ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-10-30 2018-10-30 5 352 361