International Journal for Innovation Education and Research (IJIER)
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Design of Image Copy-Paste Forensics System Based on Moment Invariants
No full textCopy-paste tampering is a common type of digital image tampering, which refers to copying a part of the image area in the same image, and then pasting it into another area of the image to generate a forged image, so as to carry out malicious operations such as fraud and framing. This kind of malicious forgery leads to the security problem of digital image. The research of digital image copy paste forensics has important theoretical significance and practical value. For digital image copy-paste tampering, this paper is based on moment invariant image copy paste tampering detection algorithm, and use Matlab software to design the corresponding tampering forensics system
Statistical Exploration of the Data for the Georgia Mountain Food Bank
No full textHunger relief is one of the major needs during humanitarian emergencies. Georgia Mountain Food Bank’s (GMFB) is to address hunger, health, and quality of life by serving those in need throughout North Georgia. GMFB is invited to participate in this project by providing data on the “People in Need” program. GMFB provides the demographic and food picking up information for FY17 & FY18. The data are completely anonymous without any ethical concerns. GMFB would like to obtain a better understanding of the data through mathematics research and analytic study with this project
Production, characterization and biological evaluation of nanocapsules containing tricresol formalin and their comparison with the free form
No full textEthnopharmacological relevance: Tricresol formalin is composed of 90% formaldehyde and 10% cresols, highly volatile, has action at a distance, has been used in endodontics since the 20th century, and it remains widely used in Brazil in dental treatments, in necrotic teeth and with periapical lesions. However, there is still controversy regarding the biological compatibility under the conditions of clinical use of this drug, as the studies carried out on this substance and its components are not consistent with its clinical use. Formaldehyde is reported as a potential cytotoxic substance, because when in direct contact with cells it is responsible for a cytogenotoxic response, so an alternative to increase stability and ensure the safe administration of this compound in direct contact with cells would be nanoencapsulation. The use of nanomaterials provides numerous advantages, as the main interests are increased solubility and drug release control. Study objective: This study aimed to produce and characterize nanocapsules containing tricresol formalin as active, evaluating and comparing the in vitro cytotoxic effect of free and nanostructured forms.Materials and methods: a nanoparticle was produced, optimization of the preparation method and characterization of nanocapsules containing tricresol formalin. Were performed antimicrobiological tests, tests for cell viability through the tetrazolium method assay (MTT), free radical production, double strand DNA damage, and nitric oxide production. Results: The formulation used did not show toxic behavior against human peripheral blood mononuclear cells and showed a significant reduction in the toxicity of tricresol formalin in human fibroblast cells. The nanostructures showed values similar to the free form for antimicrobial activity. The nanoparticles showed mean particle size of 192.3 ± 2.5 nm, PDI of 0.101 ± 0.013, zeta potencial of -17.7 ± 2.8 mV, and pH of 5.48 ± 0.3. Conclusion: Thus, it is evident that nanocapsules containing tricresol formalin can become a safer alternative for use within endodontics
Environmental education in Brazil: A look from Law Nº 9.795
No full textConcerns about environmental issues have strengthened since the 1970s in different parts of the world. In Brazil, the socio-environmental debate resulted in the need for Environmental Education. The study presents the trajectory of twenty years since the implementation of the Environmental Education Law, nº 9795, of April 24, 1999 and its importance in guiding education professionals, students and professionals in the tourist trade on environmental education. It is characterized by a study of a qualitative nature, through exploratory research, resulting from the analysis of documents from the Ministry of the Environment and the Ministry of Education. As a result, the essential topics that helped in the creation of this Law are presented, the main foundations that support it and how it touches on the precepts of quality of life and sustainability
Marrying off Early: Pre-Marital Virginity and Family Integrity among the Oromo in Central Ethiopia
No full textThis article investigates early marriage among the Oromo in Dawo District, Oromia National Regional State, Ethiopia. The research employed a mixed approach to secure relevant data. We collected primary data from the field via key informant interviews and focus group discussion. We selected key informants purposively from concerned government offices and community representatives. We collected quantitative data via questionnaire from 92 randomly selected school girls. Despite the government’s attempts to ban early marriage, the practice is still common and evolving. Parents are gradually losing the sole decision to marry their children without their consent nowadays. Yet they still have power over when and to whom they give away their daughters. Kadhaa (betrothal) and butii (abduction) are the two main ways of effecting early marriage in the study area. The main cultural reasons for which parents marry off their daughters early include securing their daughters’ future and maintaining girls’ pre-marital virginity. Virginity is valued in marriage and can be a source of honor or shame for the girls and their parents. Poverty, and particularly the current dire economic conditions in the area, coupled with an alarming level of joblessness among the youth who hold a diploma or a degree, have made the girls at school lose hope in education as a viable option for their future life and worsened early marriage in recent years. The girls themselves view marriage as an alternative life career and thus quit school for an early marriage
ARTIFICIAL NEURAL NETWORKS FOR PREDICTING THE GENERATION OF ACETALDEHYDE IN PET RESIN IN THE PROCESS OF INJECTION OF PLASTIC PACKAGES
No full textThe industrial production of preforms for the manufacture of PET bottles, during the plastic injection process, is essential to regulate the drying temperature of the PET resin, to control the generation of Acetaldehyde (ACH), which alters the flavor of carbonated or non-carbonated drinks, giving the drink a citrus flavor and putting in doubt the quality of packaged products. In this work, an Artificial Neural Network (ANN) of the Backpropagation type (Cascadeforwardnet) is specified to support the decision-making process in controlling the ideal drying temperature of the PET resin, allowing specialists to make the necessary temperature regulation decisions for the best performance by decreasing ACH levels. The materials and methods were applied according to the manufacturer's characteristics on the moisture in the PET resin grain, which may contain between 50 ppm and 100 ppm of ACH. Data were collected for the method analysis, according to temperatures and residence times used in the blow injection process in the manufacture of the bottle preform, the generation of ACH from the PET bottle after solid post-condensation stage reached residual ACH levels below (3-4) ppm, according to the desired specification, reaching levels below 1 ppm. The results found through the Computational Intelligence (IC) techniques applied by the ANNs, where they allowed the prediction of the ACH levels generated in the plastic injection process of the bottle packaging preform, allowing an effective management of the parameters of production, assisting in strategic decision making regarding the use of temperature control during the drying process of PET resin
Utilization of Business Intelligence Tools among Business Intelligence Users
No full textThe study was an investigation of the impact of perceived usefulness and perceived ease of use of business intelligence (BI) tools among users. The relationship between and among the dependent variable (utilization of BI tools) and the independent variables (perceived usefulness and perceived ease of use) was investigated through the lenses of technology acceptance model (TAM). Other objectives for the current research were to build a model to predict users’ utilization of the independent variables, and to generalize the results of the research to the IT population. Data for the current research was collected utilizing a survey questionnaire, designed by the researcher, with a 5-point Likert scale to interpret responses to the survey questions. The analysis consisted of descriptive statistics and multiple regressions models. A prediction model was structured using generalized linear models. The result of the study was the development of a prediction model for BI tools utilization through the lenses of a technology acceptance model (TAM). The model highlighted the importance of up-to-date information provided by current BI tools, ability of BI tools to provide users with more analytical tools to accomplish their jobs, the degree to which BI tools allow users to present convincing arguments, the ability of BI tools to provide users with more possible solutions, the ability of BI tools to reduce the time required to accomplish jobs, and the ability of BI tools to help users make relevant business predictions
The Sustainable Transport System at the Federal University of Amazonas
No full textThe city mobility likewise the city dynamics might be influence the university space and how will be working the campus mobility. Some studies point out which herewith the cities' evolution, the universities have been developed the same mobility behavior as well as is influenced by the city model. Recently was investigate the constraints and how much it is possible to provide sustainable mobility at the campus. This issue will show the Federal University of Amazonas case. Nowadays, the university transport model is the same as the micro-city kinds, at the regional system have been some constraints in the service level as in the sustainability performance. On the other hand, Amazon's university performance is smoothing the sustainable impact and minimize the ecological footprint by the green area at the campus; it is the very important front of the climate change actions to hit the temperature global goals. This article is shown which is possible to improve sustainable mobility at the campus when is provides other mobility kinds and redesign the transport systems
Academia During The Covid-19 Pandemic: A Study within the Geotechnical Engineering Research Community
No full textThe COVID-19 pandemic has had a profound effect on both education and research activities. A survey conducted within the geotechnical engineering and earth science academic communities between April 22 and 24 explored the variables that affect working efficiency and intellectual development during the pandemic period. We received 274 complete responses from faculty and graduate students in North America, Europe, South Korea, and Saudi Arabia. The four variables that correlate best with individuals’ perceived consequences of the pandemic are: setting daily goals, focus on academic tasks, time spent reading literature outside core research or on professional development, and commitment to exploring deeper scientific concepts. Overall, 28% of the respondents exhibit a positive outlook. For the other 72%, living with non-family members or with children, hindered access to needed materials, and excessive time spent with video entertainment exacerbated the perception of potential negative consequences of the pandemic. Observed percentages and trends are very similar across age, gender, living conditions and regardless of regional/national restrictions. Two complementary surveys addressed faculty choices for online education and student preferences. These results document the effective transition from in-person to online education using readily available technology, and highlight students’ preferences for in-person education followed by live online platforms; pre-recorded lectures emerge as the least preferable choice
AN AUTHENTICATION FOR GROUP COMMUNICATIONS IN AD-HOC NETWORKS
No full textGroup communication implies a many-to-many communication and it goes beyond both one-to-one communication (i.e., unicast) and one-to-many communication (i.e., multicast). Unlike most user authentication protocols that authenticate a single user each time, we propose a new type of authentication, called group authentication that authenticates all users in a group at once. The group authentication protocol is specially designed to support group communications. There is a group manager who is responsible to manage the group communication. During registration, each user of a group obtains an unique token from the group manager. Users present their tokens to determine whether they all belong to the same group or not. The group authentication protocol allows users to reuse their tokens without compromising the security of tokens. In addition, the group authentication can protect the identity of each user