http://ijaems.com/ Open Access international Journal to publish research paper en-us November Sensor network is a term used to refer to a heterogeneous system combining tiny sensors and actuators with general/special-purpose processors. Sensor networks are assumed to grow in size to include hundreds or thousands of low-power, low-cost, static or mobile nodes. This system is created by observing that for any densely deployed sensor network, high redundancy exists in the gathered information from the sensor nodes that are close to each other we have exploited the redundancy and designed schemes to secure different kinds of aggregation processing against both inside and outside attacks. http://ijaems.com/detail/efficient-data-aggregation-in-wireless-sensor-networks/ Susan Mary Olakkengil, Dr. Subhas Singh Parihar http://ijaems.com/upload_images/issue_files/1IJAEMS-110202111-Efficient.pdf The purpose of the current study is to develop and validate a multidimensional scale for measuring internal auditing effectiveness (IAE) in Tunisia. The authors’ methodological approach is based on both qualitative and quantitative methodologies. The qualitative technique was used to generate scale items to measure IAE and the quantitative technique was utilised to test and validate the scale. The sample includes 148 chief internal auditors from Tunisian companies. Data were divided in half. First half was utilised for exploratory factor analysis (EFA) and the second half of the data were utilised to run confirmatory factor analysis (CFA). The study found that IAE is a three-dimensional construct (internal audit process, output of internal audit and impact of internal audit) which is consisted of 16 items. This reliable and valid scale offers a practical instrument to measure IAE that very interesting to managers and external auditors. http://ijaems.com/detail/development-and-validation-of-a-scale-for-measuring-internal-auditing-effectiveness-in-tunisian-companies/ Hella Dellai, Nadia Slimene http://ijaems.com/upload_images/issue_files/2IJAEMS-11020212-Development.pdf The study helps determine factors like price, quantity, quality, packaging, content, correct ingredients, religious aspect, and genetic factors that influence people to buy the product/service. Collected data from students, working professionals, business class, and homemakers. Changing advertising appeals attract more millennials as well as influence millennials preference. The study aims to study the level of satisfaction among millennials with advertisements like awareness of product availability, knowledge of brand loyalty, easy to compare with a competitive advantage, etc. This study also helps to recognize the effect of advertisements on millennials buying behaviour. In the competitive market, any product can't survive without advertisements. Millennials buy goods when they feel it's necessary. Companies should give advertisements to brand recall in the minds of customers. This study focused on the effect of advertisements on millennials buying behaviour and perception while changing the advertising appeals during the time of Covid. http://ijaems.com/detail/effect-of-advertisement-on-millennials-perception-behaviour/ Prof. Naresh Sachdev, Dr. Sumita Chahal http://ijaems.com/upload_images/issue_files/3IJAEMS-10920214-Effectof.pdf Social media marketing has increased in popularity in the tourist sector because it allows businesses to communicate directly with customers through various Internet platforms, as well as monitor and respond to client comments and assessments of services. This paper focused on the awareness of tourists about the use of social media promotions of tourist attractions. Also, this paper described the expectations of tourists in using social media promotions of tourist attractions. Furthermore, challenges encountered by tourists in using social media promotions of tourist attractions were determined. This study used a descriptive-quantitative method. A total of 89 users of social media promotions of tourist attractions in Nueva Ecija were involved in this study. Tourist respondents are aware that this is a new approach for marketing tool where tourism establishments provide not only basic information of the attractions but even reviews, answers to queries, and the management profile giving them a complete assessment of tourism establishments’ performance and how satisfied are the customers. Furthermore, they expected that social media promotions could provide good customer relations and services. However, there were still challenges encountered when using this marketing strategy such as there are hidden charges, display photo advertisements are different from the actual, and some information are inaccurate as they transact to the tourism establishments. The researcher recommends that in using social media promotions, tourists should be assertive to know all the details of the tourism establishments and attractions before confirming their bookings or reservations. http://ijaems.com/detail/tourists-awareness-expectations-and-challenges-encountered-in-the-use-of-social-media-promotion-of-tourist-attractions/ MA. Cecila P. Reyes http://ijaems.com/upload_images/issue_files/4IJAEMS-10120222-Tourists.pdf