28 research outputs found

    Original Achievements and Dynamic Quality Analysis on the Roto-Translation Servo Linear Actuator for Machine-Tools and Robots

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    The paper presents some of the original achievements of unit elements of practice of the telescopic linear actuator type with the possibility of application in industry. We also analyze some parameters of dynamic quality that influence their technical characteristics as a mechatronic product making them compatible with the requirements of such intelligent machines. The paper presents an analysis of roto-translation systems, that can be programmed, and the project of an equipment of translation helped by a system which changes the rotation movement into a translation movement, using a screw with balls. The main constructive variants, the model of kinematics, dynamics and the calculus with the working conditions are also presented. The result of the research can be valued immediately in any system of linear movement because it is based on the newest techniques in the field of modeling. Their objective is the developing of a new system of electro-mechanic linear actuator type, as well as perfecting the existing ones in a very short time and in highly energy-efficient and economic conditions. In the future these researches can continue to develop new applications on other types of mechanical transmissions using this method and different other modular controls. Finally, additional researches on defining the correct set of requirements and specifications for new electro-mechanic actuator systems could significantly improve their development

    THE IMPORTANCE OF THE FINANCIAL AUDIT IN PREVENTING ACCOUNTING ERRORS AND FRAUD

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    In the audit of financial statements, the main objective of the auditor is to express an opinion on the accuracy of the reported information, in all significant aspects, in relation to the applicable accounting framework. Although international auditing standards state that auditors are not required to detect financial fraud in audited companies, they must ensure during their engagement that the risk of fraud will not affect the audit opinion. To detect the risk of fraud and reports of accounting manipulation, auditors can use several signal indicators. Practice and literature support that the use of indices to detect accounting manipulation can be achieved through various linear scoring functions including the Beneish Model (1999). In Romania, the problem of assessing the risk of audit fraud has not been adequately addressed, until now. The purpose of this scientific approach is to prevent, analyze and evaluate the risk of fraud, based on the estimated score function and the defined classification interval

    Subungual squamous cell carcinoma leading to arm amputation

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    Although rare, subungual carcinoma is the most common malignant nail tumor. The symptomatology is not characteristic, being very similar to that of other nail and periungual diseases. For this reason, early diagnosis is usually established by performing a biopsy. With appropriate treatment, subungual carcinoma usually has a favorable prognosis. Metastatic cases are rarely encountered, but they usually have a poor therapeutic result. This article presents the case of a patient with subungual carcinoma (diagnosed by histopathological exam), initially treated by amputation of the distal and middle phalanges of the fourth finger. Two years after the operation, a recurrence in the epitrochlear nodes was diagnosed, for which epitrochlear lymphadenectomy and postoperative chemotherapy were performed. At 7 months, metastases were detected in the axillary nodes, which were treated with radiotherapy and chemotherapy. The appearance and development of the tumor at the elbow and the lower third of the arm led the patient to accept scapulohumeral disarticulation. The patient finally adapted to the physical infirmity, having a good general condition and an optimistic attitude

    Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

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    Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

    CONFIGURING THE ROLE OF THE UNITED NATIONS SECRETARYGENERAL IN THE PEACEFUL SETTLEMENT OF INTERNATIONAL DISPUTES. RELATIONS WITH THE SECURITY COUNCIL AND THE GENERAL ASSEMBLY

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    In an international context embracing the idealist concepts of harmony, cooperation, structural peace, illegality of war, the United Nations Organization has created a system of peaceful settlement of disputes, based on principles of justice and international law. In this framework, the organs bearing the responsibility of peaceful resolution of conflicts are the International Court of Justice, the Security Council, the General Assembly and the Secretary-General. The latter has a unique position, triggering a spectacular evolution of its role in the maintenance of international peace and security. The challenges of the international environment and the outstanding ways in which they were addressed by the distinctive personalities that filled the function of the Secretary General, creating precedents and influencing its future development, have led to a continuous enlargement of its role. The purpose of the present paper is that of defining the role of the Secretary-General in the system of peaceful settlement of international disputes created by the United Nations, by analysing the relevant provisions consecrated in the Charter and by revealing and explaining the outstanding evolution of this institution, with an emphasis on the relations of mutual influence between the High Official, on one side, the Security Council and the General Assembly, on the other

    First Attempts in Deception Detection in HRI by using Thermal and RGB-D cameras

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    International audienceA key factor of a successful Human-Robot Interaction (HRI) is the robot's ability to understand the messages transmitted by a human user, especially their nonverbal and paraverbal components. Our work focuses on the robot's ability to detect if a person is deceitful or honest, based on an evaluation of their physiological state and using only noninvasive techniques, such as thermal and RGB-D imaging. In particular, we currently study and evaluate several physiological manifestations during an experiment consisting of an interrogation conducted by a robot that follows a mock-up crime, then correlate them with the truth values of the participants' answers. The first results are promising

    The Impact of a Robot Game Partner When Studying Deception During a Card Game

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