Online Storage Research Articles

Cloud technologies in secondary schools

The purpose of this study is to determine the role and place of cloud technologies in the modern school, the main task – determining components of cloud technology tools support individual learning school subjects, the object of study – the tools of support and e-learning in secondary schools, the subject – means cloud technologies for e-learning students, the main research method – a theoretical study. The system of cloud technology training tools for specific school subject consists of general education tools cloud technologies (tools for online e-learning materials development and online storage, cloud technology learning management tools) and specialized cloud technologies tools – browser-based system of programming and simulation (to support learning computer science), mathematical mobile environments (to support the study of mathematics), virtual online labs and simulation system (to support the study of physics, chemistry or biology) etc. The use of cloud technologies in the educational process of general education schools especially will solve the problem of providing equal access for students and teachers to high-quality educational resources in the classroom and in their spare time.

Physical Medicine and Rehabilitation Resident Use of iPad Mini Mobile Devices

BackgroundPrevious research on the use of tablet devices in residency programs has been undertaken in radiology and medicine or with standard-sized tablet devices. With new, smaller tablet devices, there is an opportunity to assess their effect on resident behavior. This prospective study attempts to evaluate resident behavior after receiving a smaller tablet device. ObjectiveTo evaluate whether smaller tablet computers facilitate residents' daily tasks. DesignProspective study that administered surveys to evaluate tablet computer use. SettingResidency program. ParticipantsThirteen physical medicine and rehabilitation residents. MethodsResidents were provided 16-GB iPad Minis and surveyed with Redcap to collect usage information at baseline, 3, and 6 months. Survey analysis was conducted using SAS (SAS, Cary, NC) for descriptive analysis. Main Outcome MeasurementsTo evaluate multiple areas of resident education, the following tasks were selected: accessing e-mail, logging duty hours, logging procedures, researching clinical information, accessing medical journals, reviewing didactic presentations, and completing evaluations. Then, measurements were taken of: (1) residents' response to how tablet computers made it easier to access the aforementioned tasks; and (2) residents' response to how tablet computers affected the frequency they performed the aforementioned tasks. ResultsAfter being provided tablet computers, our physical medicine and rehabilitation residents reported significantly greater access to e-mail, medical journals, and didactic material. Also, receiving tablet computers was reported to increase the frequency that residents accessed e-mail, researched clinical information, accessed medical journals, reviewed didactic presentations, and completed evaluations. After receiving a tablet computer, residents reported an increase in the use of calendar programs, note-taking programs, PDF readers, online storage programs, and file organization programs. ConclusionsThese physical medicine and rehabilitation residents reported tablet computers increased access to e-mail, presentation material, and medical journals. Tablet computers also were reported to increase the frequency residents were able to complete tasks associated with residency training.

103-POS

Preeclampsia is a complex syndrome with variable phenotypes that suggest differing underlying pathogenic pathways. Definition of phenotypes and pathways demands very large datasets achieved by combining data from multiple studies. This ideally requires that the data are harmonized before collection and prior to merging. To this end, we have presented a strategy (1) of standardized data and biosample collection. To facilitate its adoption CoLab proposes that a standard database is created to be used online by interested investigators. The database will collect minimal and optimal datasets as previously outlined (1), the latter being an extension of the former. It is designed for online data acquisition and storage but will be available as a standalone system. It will allow for site-specific add-ons to address local priorities and could also serve as the template for study of other adverse pregnancy outcomes and for clinical studies. The online database will be available free of charge to low and middle income countries with a minimal monthly maintenance charge, applicable to high income countries. Acquisition of data in a standardized format across the globe will allow data to be pooled, achieving sufficient statistical power to discriminate sub-types of preeclampsia. These data could then be utilized to analyze underlying pathophysiology and to define phenotype outcomes and specific therapies. 1. Myatt L, Redman CW, Staff AC, Hansson S, Wilson ML, Laivuori H, Poston L, Roberts JM; for the Global Pregnancy CoLaboratory (COLAB). Strategy for Standardization of Preeclampsia Research Study Design. Hypertension. 2014;63:1293-301. L. Myatt: None. C.W. Redman: None.

Health Databases: Confidential Patient Information and Governance Responsibilities

In the modern age of technology, health records have transitioned into the online environment with patient portals, electronic health records, and numerous other cataloguing systems emerging to assist meeting the objectives of health care organizations. It is widely accepted that digital health records offer benefits to both patients and health care providers. Conversely, privacy breaches have wide ranging ramifications, not only because of patients’ confidentiality and wellbeing, but also in terms of governance as privacy breaches can impact upon reputation, the potential for significant legal claim, and financial loss. The purpose of this paper is to raise awareness of the issues concerning the online storage of confidential patient information and positions this as a governance responsibility. This study identified confidential patient information on the worldwide web that was freely accessible to anyone with an internet-connected device. Advanced queries to locate such data were conducted which result...

Design of Online Pipeline Ultrasonic Data Acquisition and Storage System Based on PCI Bus

Based on the theory of ultrasonic testing, an online data-acquisition and storage system is designed. The design scheme of hardware and software of the system is introduced in this paper, in which the embedded processor DSP and FPGA is used as its control core and the interface of PCI bus and DSP is designed. Thus a high speed and large-capacity ultrasonic signal can be processed, furthermore the pipelines defects can be analyze and evaluate.

La transizione verso il mercato del lavoro dipendente dei disoccupati iscritti ai Centri Servizi per il Lavoro in Sardegna

In this paper we analyze the entry of unemployed people registered at the Public Job Services (CSL) into the labor market. Referring to the registered unemployment to the CSL during 2008 , approximately 60,000 people declared to be willing to work. After one year it is verified that 30.4% of them were able to get out of administrative unemployment, 29.6% found a job which is not significant enough to get out of the unemployment status, and finally the remaining 40 % had never worked. These numbers are very interesting since they come from an administrative source and can be used to periodically and geographically monitor the dynamics of the labor market and to approach the evaluation problem along the effectiveness dimension. In order to understand if and how the activity of each individual can be considered effective by CSL in consideration of local contexts in which they operate, on-line data storage and information processing procedures are adopted. Such procedures ensure that the same data can be correctly used for statistical purposes as they are standardized and replicable procedures which allow extreme time and cost savings.

A Generic Privacy Breach Preventing Methodology for Cloud Based Web Service

The present focuses on the Cloud storage services are having a critical issue in handling the user's private information and its confidentiality. The User data privacy preserving is a vital facet of online storage in cloud computing. The information in cloud data storage is underneath, staid molests of baffling addict endeavor, and it may leads to user clandestine in a roar privacy breach. Moreover, privacy preservation is an indeed research pasture in contemporary information technology development. Preserving User Data in Cloud Service (PUDCS) happens due to the data privacy breach results to a rhythmic way of intruding high confidential digital storage area and barter those information into business by embezzle others information. This paper focuses on preventing (hush-hush) digital data using the proposed privacy preserving framework. It also describes the prevention of stored data and de-identifying unauthorized user attempts, log monitoring and maintaining it in the cloud for promoting allusion to providers and users.

Mapping Using Multithreading In Graph Search

Cloud computing is a way of delivery any or all information technology from computing power to computing infrastructure, application, business processes and personal collaboration to an user as a service wherever and whenever they need it. The cloud in cloud computing is set of hardware, network, software, storage, service and interfaces that combine to deliver aspects of computing as a service. Shared resource, software and information are providing to computers and other devices on demand basis. It allows people to do things, they want to on a computer without the need for them to build an IT infrastructure or to understand the underline technology. Cloud computing refers to application and services that run on distributed network using virtualized resources and access by common internet protocols and network standards. It is a moving computing and storage from the user desktop or laptop to remote location where as huge collection of server storage system and network equipment from a seamless infrastructure for an application and storage. Online file storage, social networking sites, webmail and online business application are the example of cloud services. Now a day many people are connected to internet and Social networking sites. Social network have become a powerful platform for sharing and communication that focus on real world relationships. Social networking plays a major role in everyday lives of many people. Facebook is one of the best examples of Social networking sites where more than 400 million active users are connected. Thus Social cloud is a scalable computing model where in virtualized resource provided by users dynamically. In this paper we used concept of MapReduce with Multithreading. MapReduce is a paradigm that allows for massive scalability across hundreds or thousands of servers in a cluster. MapReduce job usually split the input data into independent chunks which are processed by the map tasks in completely parallel manner. It sorts the output of the map which are than input to the reduce task. Using mapping techniques is to find out a good performance in terms of cost and time.

BIG DATA: PRIVACY AND INCONSISTENCY ISSUES

In the current Big Data world we are literally drowning in data that has been generated every day. Big data refers to data volumes in the range of exabytes (10 18 ) and beyond. Such volumes exceed the capacity of current on-line storage systems and processing systems. Data, information, and knowledge are being created and collected at a rate that is rapidly approaching the exabyte/year range. But, its creation and aggregation are accelerating and will approach the zettabyte/year range within a few years. Such massive volumes of data generated are new to storage industry. Many concerns have been raised to formulate the data issues. Big Data will be the only key to overcome all these data issues. In this paper we are going to provide a closer look towards various privacy issues that has been haunting various Big Data security later we provide an analysis about the various inconsistencies that has an impact on Big Data analytics.

Giving form to social cloud storage through experimentation: Issues and insights

In the last few years, we have seen a rapid expansion of social networking. Digital relationships between individuals are becoming capital for turning to one another for communication and collaboration. These online relationships are creating new opportunities to define socially oriented computing models. In this paper, we propose to leverage these relationships to form a dynamic “social cloud” for storage. While at first glance, the concept of social cloud looks very appealing, a deeper analysis brings out many problems, particularly in data availability. To overcome this issue, in addition to digital friends, we propose to the members of the social cloud the use of online storage services like Amazon S3 to store data and improve data availability. Through a real deployment in our campus, we study what aspects give form to the definition of social cloud storage and determine the difficulty of realizing this concept in the real world. Our analysis reveals interesting insights of how to reap the full potential of socially oriented storage.

Web security in a windows system as PrivacyDefender in private browsing mode

Recently, due to the advance and development of Internet technology and its development, web browsers have become essential applications. A web browser is not only used to surf the Internet, but also plays an important role as a portable operating system. For example, many users edit documents via an online editor and store the documents in an online storage repository. All those tasks are done with the help of a web browser. This results in a large number of attacks on web browsers. Therefore, the security of web browsers has become an increasingly important issue in recent years. Traditionally, when a user surfs on the Internet, his interaction with the browser is recorded. This scenario is called public browsing mode. Through attacking web browsers, attackers can obtain access to surfers' private information, including surfing habits and passwords. The attackers are able to do this as web browsers always leave cookies, browsing histories and caches on the users' computers. To avoid malicious attacks, many web browsers have developed private browsing mode mechanisms. In private browsing mode, a user's behavior is not traced and his private information is retained as well. However, these mechanisms still create files such as bookmarks. Most importantly, the files downloaded through a web browser will be saved to disk unless the user deletes them himself. This is an extremely serious threat to the private security of web users. We designed a mechanism in Windows XP that observes the behaviors and patterns related to the creation and deletion of files in Firefox while in private browsing mode. We then focused on the files which were not deleted, and cleared them by means of anti-forensics manners. In other words, the web browsers can be made comprehensively secure with our mechanism.

Secure Cloud Data Storage Services in the Hybrid Cloud

Cloud storage is a model of networked online storage where data is stored in virtualized pools of storage which are generally hosted by third parties. Hosting companies operate large data centers and people who require their data to be hosted buy or lease storage capacity from them. The data center operators, in the background, virtualize the resources according to the requirements of the customer and expose them as storage pools, which the customers can themselves use to store files or data objects. Physically, the resource may span across multiple servers. The safety of the files depends upon the hosting websites. Lack of control on the data and privacy issues are the biggest obstacles to holding valuable personal and business-critical information in the cloud. Encryption and integrity control is one of the most obvious solutions to address these concerns, however it costs additional complexity of the system and service usage and may impact data access performance. In this study, we will discuss about security challenges in hybrid cloud storage and explain how to preserve security in them.

Using the BIM Collaboration Format in a Server Based Workflow

This paper describes the research and development of a server based BCF workflow and open source BCF server software. BCF is short for “BIM Collaboration Format” and is an open standard to communicate about the ‘issues’ of a BIM model during its design cycle. Essentially, a BCF issue holds a description of the issue, a status, links to a BIM model and objects, a picture of the issue and a camera orientation. The BCF standard is based on file exchange. BCF issues are packed into a ZIP file (.bcfzip) and sent to project partners. This paper, however, describes the use of the same BCF in a centralized online setting. An open source BCF server was developed, and integrated with an online 3D viewer and BIMserver. Through the BCF server it has been shown that project partners have been able to create issues, manage them online and evaluate them in context of the actual BIM model. Research questions investigated within this project included whether the BCF format is capable of describing the status of building objects in addition to merely describing their issues and to what extent the XML based BCF schema proved to be suitable for a more centralized online storage paradigm. A case study was conducted in order to investigate a suitable workflow for a collaborative design project that involved the online sharing of BIM data, issues, and status. This paper describes the project, the creation of the BCF server, the case study and reports on the results.

LIFE: a lightweight and flexible key management scheme for securely and pervasively file editing in mobile cloud computing

As cloud servers provide on-demand and on-line storage services, it is possible for mobile users to work any-time and any-where by using hand-held smart devices. Mobile users upload working documents into cloud servers and other users can cooperatively read and edit them. Cloud servers are usually assumed untrustworthy, thus uploaded files have to be encrypted for confidentiality. It thus arises a security problem for key management, e.g., key distributing, updating and revoking. In mobile cloud computing context, key management must be lightweight in terms of power consumption and flexible, because devices have energy constraints, as well as users and files dynamically changes. In this paper, we propose a lightweight and flexible scheme, called LIFE, for key management in mobile cloud computing without relying on any trusted third party. LIFE provides a uniform key management framework for both pairwise keys and group keys by making use of Chinese remainder theorem. LIFE can implicitly update or revoke group keys, which extra protects the privacy of group membership. In addition, LIFE can also guarantee forward and backward secrecy. The security and performance of LIFE are analysed extensively, which justifies its applicability.

On the interplay between data redundancy and retrieval times in P2P storage systems

Peer-to-peer (P2P) storage systems aggregate spare storage resources from end users to build a large collaborative online storage solution. In these systems, however, the high levels of user churn—peers failing or leaving temporarily or permanently—affect the quality of the storage service and might put data reliability on risk. Indeed, one of the main challenge of P2P storage systems has traditionally been how to guarantee that stored data can always be retrieved within some time frame. To meet this challenge, existing systems store objects with high amounts of data redundancy, rendering data availability values close to 100%, which in turn ensure optimal retrieval times (only constrained by network limits). Unfortunately, this redundancy reduces the overall net capacity of the system and increases data maintenance costs. To alleviate these problems data redundancy can be reduced at the expense of lengthening retrieval times. The problem is that both the rewards and disadvantages of doing so are not well understood. In this paper we present a novel analytical framework that allows us to model retrieval times in P2P storage systems and describe the interplay between data redundancy and retrieval times for different churn patterns. Using availability traces from real P2P applications, we show that our framework provides accurate estimation of retrieval times in realistic environments.

CloudDICOM: A Large-Scale Online Storage and Sharing System for DICOM Images

Online storage and sharing for large-scale DICOM images becomes increasingly important for medical organizations or large hospitals. This paper presents a distributed architecture based on Hadoop and HBase to support online storage and sharing for DICOM images. An experimental system called CloudDICOM is designed and realized based on this architecture. The paper focuses on designing the architecture, workflow, data schema, and then on analyzing the components in CloudDICOM. Firstly, DICOM messages sent by clients will be received, converted and stored into Hadoop and HBase. Then, these messages will be indexed and generated query and WADO index database. The components of DICOM query and WADO based on this index are implemented to provide online DICOM query and WADO service for clients. The test results demonstrate that CloudDICOM can provide online storage and sharing service for large-scale medical images, and support standard DICOM Query and WADO service.

Security Threats on Cloud Computing Vulnerabilities

Clouds provide a powerful computing platform that enables individuals and organizations to perform variety levels of tasks such as: use of online storage space, adoption of business applications, development of customized computer software, and creation of a “realistic” network environment. In previous years, the number of people using cloud services has dramatically increased and lots of data has been stored in cloud computing environments. In the meantime, data breaches to cloud services are also increasing every year due to hackers who are always trying to exploit the security vulnerabilities of the architecture of cloud. In this paper, three cloud service models were compared; cloud security risks and threats were investigated based on the nature of the cloud service models. Real world cloud attacks were included to demonstrate the techniques that hackers used against cloud computing systems. In addition, countermeasures to cloud security breaches are presented.

LEVERAGING CLOUD-BASED SERVICES AND TOOLS FOR CURRICULUM AND ENGINEERING ATTRIBUTES MANAGEMENT

Canadian engineering schools must make the transition to outcome-based programming, assessment, and accreditation. The task can be daunting, especially for small schools or programs that cannot rely on extensive information technology support. Cloud-based services are a quick, low-cost option for facilitating many data-management and collaborative tasks required by the process. Cloud services have evolved from mere on-line storage to the "software as a service" paradigm. We report our experience with two services that facilitate collaborative work. Using on-line, specially crafted questionnaires, information may be automatically collected and formatted into spreadsheets, providing a powerful, general purpose data collection engine. This approach was used at various stages in the transition to graduate attributes processing: curriculum mapping, assessment, etc. On-line services have also been used to create a distributed repository of relevant literature for supporting the work of the “attributes”team.

A Survey on Secure Storage in Cloud Computing

Cloud Computing is an environment for providing information and resources that are delivered as a service to end-users over the Internet on demand. Thus cloud enables users to access their data from any geographical locations at any time and also has brought benefits in the form of online storage services. Cloud storage service avoids the cost expensive on software, personnel maintenance and provides better performance, less storage cost and scalability. But the maintenance of stored data in a secure manner is not an easy task in cloud environment and especially that stored data may not be completely trustworthy. Cloud delivers services through internet which increases their exposure to storage security vulnerabilities. However security is one of the major drawbacks that preventing several large organizations to enter into cloud computing environment. This work surveyed on several existing cloud storage frameworks, techniques and their advantages, drawbacks and also discusses the challenges that are required to implement secure cloud data storage. This survey results help to identify the future research areas and methods for improving the existing drawbacks.

An approach for constructing private storage services as a unified fault-tolerant system

Organizations are gradually outsourcing storage services such as online hosting files, backup, and archival to public providers. There are however concerns with this process because organizations cannot access files when the service provider is unavailable as well as they have no control and no assurance on the management procedures related to data. As a result, organizations are exploring alternatives to build their own multi-tenant storage capacities.This paper presents the design, implementation and performance evaluation of an approach for constructing private online storage services. A hierarchical multi-tier architecture has been proposed to concentrate these services in a unified storage system, which applies fault-tolerant and availability strategies to the files by passing redundant information among the services or tiers. Our approach automates the construction of such a unified system, the data allocation procedure and the recovery process to overcome site failures. The parameters involved in the performance of the storage services are concentrated into intuitive metrics based on utilization percentage, which simplifies the administration of the storage system. We show our performance assessments and the lessons learned from a case study in which a federated storage network has been built from four trusted organizations spanning two different continents.