Randomized Poly-encrypted Image Exploiting Chaotic Beheviour

The security of digital data has become an essential need. Because the storage, transmission of data social networking has became inevitable, the need to ensure that data is no longer a luxury but an absolute necessity. The picture takes a large part of the data and its presence every day more important. in this paper, we use a new technique encryption which is poly encryption, this technique is based on the Decomposition of the image in a random manner, and each block will be encrypted by an algorithm that used different algorithm

The Quality of Corporate Website and its Relationship with Reputation Formation

The study aimed to investigate the impact of website quality & its Relationship with the corporate reputation forming &management; applied on DAL - Sudan by studying the corporate website users, using the descriptive analytical approach for collecting and analyzing data. The study community was (656257) users of DAL corporate website, and the study sample consisted of (400) users were taken and selected in a simple random manner to represent different age groups, gender and educational levels; by questionnaire checked with Alpha Cranach's formula for validity& reliability. The results showed that there was an effect of website quality with its dimensions (easy access & use, quality & adequacy of information, simplicity & attractiveness of design)on forming &management the corporate reputation among the website's users & followers, and there is a relationship between the interaction of website admins with users' comments & the amount of time users spend on the website, the study found that interest in users' comments contributes to their increased stay on the website and their interaction with its electronic content, in addition to its relationship with reputation forming and management. The study recommended a greater focus on the intensive application of web technologies on the website, to meet the needs and desires of users, and attention to periodic user surveys to determine the corporate status and satisfaction scores, and use it as a tool to manage and measure the corporate reputation, as the website can measure reputation electronically through users' feedback and interaction with the website content.

The effect of using tribal summaries of previous requirements on the development of educational attainment of second year secondary students in Biology subject in the Tabuk region: أثر استخدام الملخصات القبلية للمتطلبات السابقة على تنمية التحصيل العلمي لطلاب الصف الثاني الثانوي في مادة الأحياء بمنطقة تبوك

This study aimed at analyze the content of biology books for the secondary and intermediate stages to reveal the periods of interruption in presenting concepts related to the digestive system, endocrine glands and nutrition, and to provide a summary of these concepts before the process of teaching them. To achieve the objectives of the study, the researcher chose two secondary schools in an intentional manner and chose (98) students from them random manner, distributed among two divisions from each school, one experimental and the other as a control group. The members of the experimental group studied using the tribal summaries of the previous requirements, while the members of the control group studied in the traditional way. The researcher conducted an achievement test for the two groups. The results of the study showed that there was a break in teaching these concepts for more than 30 months, and also showed that the students of the experimental group outperformed the control group in the achievement test. Based on these results, the study recommends taking into account the principles of sequencing and continuity in teaching biology concepts in general, and the need to provide a summary before each study unit or lesson that addresses the previous concepts necessary for new learning.

Influence of data burst collision on transmission of AWS data through satellite

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Attitude of Elementary Stage Students Towards Animation Software as Innovative Strategy to Ensure Learning Outcomes in Mathematics

Over the period of years, there has been a much emphasis on the attainment of minimum levels of learning by the students. The act ( RTE- 2009) emphasises on child friendly learning activities without fear and anxiety. Learning outcomes at elementary stage is a document having list of grade wise learning outcomes. Researchers and policy makers across the globe are interested in improving learning outcomes in fear free environment, with aid of technology and digital innovative. The present paper is an attempt to create Pawtoon (animation software) as innovative strategy to ensure learning outcomes on basis of identifying types of triangle in mathematics at elementary stage. The purpose of this paper is to study the attitude of students towards Pawtoon as improving the learning outcomes. The sample of the study include 31 VII grade students (15 boys 16 girls) selected in random manner. Findings of the study revealed that both boys and girls showed positive response for pawoon on basis of identifying types of triangle in mathematics. Further, response towards animation software among students is positive. Based on results, conclusions has been drawn that animation software as innovative strategies can ensure learning outcomes in overall holistic and comprehensive manner.

The Availability and Use of Teaching Aids for Mathematics Teachers in the Primary Stage _Primary Classes as a Model_

Teaching aids (TA) are those tools that a math teacher uses to help students understand the concepts of a lesson. The current study aims to find out the availability and use of mathematics teachers for primary (first, second, third) grades of teaching aids in a series of updated mathematics curricula for the primary stage. The researcher followed the descriptive approach, and the study population consisted of all mathematics teachers in the Babel Education Directorate, and in a random manner, (115) male and female teachers were chosen. The researcher built a questionnaire to collect data and its validity and reliability were verified before distributing it to the research sample. The data was processed using the SPSS statistical package to extract arithmetic averages and standard deviations. The results of the study showed the lack of educational aids in primary schools and their lack of the simplest, the lack of use of educational aids by mathematics teachers and their dependence on the traditional method of teaching updated mathematics, and the presence of problems faced by mathematics teachers impede the use of educational aids. The researcher recommended the necessity of providing educational aids for mathematics by the Iraqi Ministry of Education and its Directorates, especially for the primary stage, preparing special training courses for teachers on how to produce and use educational aids and employing them in teaching mathematics, creating a suitable place for displaying and using educational aids in the classroom, providing a guide for the mathematics teacher specific on how to prepare and use educational aids. Keywords: teaching aids, mathematics teacher, updated mathematics curriculum, elementary school

CryoEM reveals the stochastic nature of individual ATP binding events in a group II chaperonin

Chaperonins are homo- or hetero-oligomeric complexes that use ATP binding and hydrolysis to facilitate protein folding. ATP hydrolysis exhibits both positive and negative cooperativity. The mechanism by which chaperonins coordinate ATP utilization in their multiple subunits remains unclear. Here we use cryoEM to study ATP binding in the homo-oligomeric archaeal chaperonin from Methanococcus maripaludis (MmCpn), consisting of two stacked rings composed of eight identical subunits each. Using a series of image classification steps, we obtained different structural snapshots of individual chaperonins undergoing the nucleotide binding process. We identified nucleotide-bound and free states of individual subunits in each chaperonin, allowing us to determine the ATP occupancy state of each MmCpn particle. We observe distinctive tertiary and quaternary structures reflecting variations in nucleotide occupancy and subunit conformations in each chaperonin complex. Detailed analysis of the nucleotide distribution in each MmCpn complex indicates that individual ATP binding events occur in a statistically random manner for MmCpn, both within and across the rings. Our findings illustrate the power of cryoEM to characterize a biochemical property of multi-subunit ligand binding cooperativity at the individual particle level.

ACCV: automatic classification algorithm of cataract video based on deep learning

Purpose A real-time automatic cataract-grading algorithm based on cataract video is proposed. Materials and methods In this retrospective study, we set the video of the eye lens section as the research target. A method is proposed to use YOLOv3 to assist in positioning, to automatically identify the position of the lens and classify the cataract after color space conversion. The data set is a cataract video file of 38 people's 76 eyes collected by a slit lamp. Data were collected using five random manner, the method aims to reduce the influence on the collection algorithm accuracy. The video length is within 10 s, and the classified picture data are extracted from the video file. A total of 1520 images are extracted from the image data set, and the data set is divided into training set, validation set and test set according to the ratio of 7:2:1. Results We verified it on the 76-segment clinical data test set and achieved the accuracy of 0.9400, with the AUC of 0.9880, and the F1 of 0.9388. In addition, because of the color space recognition method, the detection per frame can be completed within 29 microseconds and thus the detection efficiency has been improved significantly. Conclusion With the efficiency and effectiveness of this algorithm, the lens scan video is used as the research object, which improves the accuracy of the screening. It is closer to the actual cataract diagnosis and treatment process, and can effectively improve the cataract inspection ability of non-ophthalmologists. For cataract screening in poor areas, the accessibility of ophthalmology medical care is also increased.

The Automation Of Robotic Processes In Jordanian Banks: Obstacles And Applications

This paper focuses on identifying the impact of technical and financial obstacles to the applications and expansion of the smart branches of banks in Jordan. This, however, depends on the Automation of Robotic Processes to identify the reality of applying smart branches in the world, including Jordan. The study employed a sample of 100 employees selected in an equal random manner from 25 Jordanian banks. With its spreading strands, multiple linear regression was used to test the hypotheses of the study. The study concluded that the expansion of banks of smart branches (robots) contributes to reducing operational cost and increasing the bank's profits by reducing the cost of banking service, enhancing its quality, increasing the market share of banks, and reducing the technical and financial obstacles that have a significant impact on the expansion of the smart branches of banks. The study recommended the importance of the development of smart branches of banks in Jordan due to its benefits in reducing the costs of the provided banking service. This contributes to increasing its profits. Also, banks should hold specialized training courses for bank workers on how to use the new technology. Banks should also allocate funds needed to create the essential infrastructure for the smart branch Applications of Artificial Intelligence, as this has an impact in achieving competitive advantage.

PPGTempStitch: A MATLAB Toolbox for Augmenting Annotated Photoplethsmogram Signals

An annotated photoplethysmogram (PPG) is required when evaluating PPG algorithms that have been developed to detect the onset and systolic peaks of PPG waveforms. However, few publicly accessible PPG datasets exist in which the onset and systolic peaks of the waveforms are annotated. Therefore, this study developed a MATLAB toolbox that stitches predetermined annotated PPGs in a random manner to generate a long, annotated PPG signal. With this toolbox, any combination of four annotated PPG templates that represent regular, irregular, fast rhythm, and noisy PPG waveforms can be stitched together to generate a long, annotated PPG. Furthermore, this toolbox can simulate real-life PPG signals by introducing different noise levels and PPG waveforms. The toolbox can implement two stitching methods: one based on the systolic peak and the other on the onset. Additionally, cubic spline interpolation is used to smooth the waveform around the stitching point, and a skewness index is used as a signal quality index to select the final signal output based on the stitching method used. The developed toolbox is free and open-source software, and a graphical user interface is provided. The method of synthesizing by stitching introduced in this paper is a data augmentation strategy that can help researchers significantly increase the size and diversity of annotated PPG signals available for training and testing different feature extraction algorithms.