205 research outputs found

    Smart E-Bike Conversion Kit and Helmet

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    With many state governments across the United States implementing shutdowns to prevent the spread of COVID-19, many bike retailers have seen dramatic increases in bike sales. Electric bicycles (e-bikes) have become increasingly popular as the public searches for alternatives to public transportation. Unfortunately, e-bike users assume some risk by riding bikes that are faster than conventional bicycles. While kits to convert conventional bicycles to e-bikes exist, no “smart” e-bike/helmet kit specifically designed to keep the user safe is currently available on the market. To mitigate risks, a smart e-bike conversion kit with multiple novel safety features, including auditory and visual signals to alert the rider of obstacles, will be presented in this paper. Additionally, the conversion kit will enable the rider to employ pedal assist by measuring the rider’s cadence and providing power to the motor accordingly. Pedal assist will be provided at a gradual rate, ensuring rider safety and a smooth speed boost. The product provides the customer with an affordable, safe, and sustainable alternative to a traditional bike or e-bike experience

    Transforming the Chinese Pole Circus Apparatus into an Interactive Musical Instrument

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    The objective of this project is to create a modified version of the Chinese pole circus apparatus in order to artistically musicalize and visualize a circus performer’s movement in real time. Wireless, wearable inertial measurement units (IMUs) allow for tracking the position of the performer’s hands and feet. The vertical height of the performer is then used to play a corresponding pitch on a musical scale, while the position with respect to the other two dimensions is used to produce a bird’s-eye-view visualization. Radio-frequency identification (RFID) tags added to the pole improve the accuracy of the IMU position tracking by providing anchor points with which to recalibrate an IMU\u27s position in space. This works to reduce the effect of drift, the result of small inaccuracies in the acceleration data collected by the IMUs which are compounded when integrating over time to determine velocity and position. This project allows an audience to experience the movement of a circus performer from a new perspective. In addition to the choreography, the audience is left with a unique musical composition and visual art pieces they can remember. More importantly, the audience can experience the movement from a perspective that cannot be experienced without the use of this technology

    Toward an Existancial Ethic, an enquiry concerning Kierkegaard's approach of the tale Abraham according to Heidegger's philosophy

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    The aim of this paper is to analyse opinions of Kierkegaard in his famous book, Fear and Trembling, and Heidegger’s points of view in the great work of thought, Being and Time, in order to present a new meaning of human. And these all going to introduce the new aspect of Ethic. Kierkegaard puts the act of the faith against of the virtue ethics according to the tale of Abraham in the Bible. He claims that the act of the faith transcends from general ethic with achieve its individuality. The actor of the faith can not returns to generality, as the actor of tragedy can. He leaves the generality to make decision in a free manner. on the other hand, Heidegger’s existancial analyses leads into that the human determiner is not an ideal essence, but it’s his existance, in other word it’s his ability-to-be. Human is who he can be. So it is obvious that these two great thinkers believe that human is not a predestined being, but he is facilities. And for this reason we can renew our definition of the ethic

    Association of History Taking and Accuracy of the Interpretation of Cervical and Lumbar Magnetic Resonance Imaging

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    BACKGROUND: Disk herniation leading to radiculopathy is one of the most important causes of neck and back pain, requiring specific diagnostic tests. Magnetic resonance imaging (MRI) is one of these diagnostic methods. Interpreting the findings of this imaging method by an experienced skilled person is very important. AIM: The purpose of this study was to investigate the role of history on the accuracy of the lumbar or cervical MRI reports in patients with back and neck pain referring to the radiology department. METHODS: This study was performed on patients with complaints of lumbar or neck pain that MRI had been performed for them. At first, the MRI was studied by the residents of the 2nd and 3rd years and then a radiologist as a routine, respectively. From 4 to 6 months later, patients’ clinical history was presented to the same students and professors and MRI was re-reported. Statistical differences were evaluated and analyzed using SPSS software version 20. RESULTS: Out of 150 patients with mean age of 42.56 ± 10.65, 87 patients (58%) were female and 63 (42%) were male. Most of the patients were between the ages of 40 and 50 years (34.66%). The most common clinical symptom of patients was waist and neck pain followed by sensory disturbances of the extremities. The most pathologic changes found was disk bulging in 28.8% of patients (68 cases). In terms of lumbar canal stenosis, the most cases were in the L4-L5 levels of the moderate type. The most reported cases of cervical stenosis have been mild. Disk herniation and DOCP were two main factors causing canal stenosis in the study patients. Statistical difference in the MRI reports performed by the residents on most of the variables was statistically significant before and after knowing the clinical history of the patient (p < 0.05). However, this difference was less noted in the reports of the radiologists. CONCLUSION: The results of this study showed that knowing the history of patients in interpreting the results of MRI in patients with vertebral disk hernia is misleading and will lead to many false positive and negative results, especially for radiology residents. It is recommended that the residents and radiologists consider the MRI films before focusing on the biographies and clinical features of the patient, to prevent the occurrence of bias and to increase the accuracy of the reports

    Effects of salicylic acid application on two almond cultivars under salinity stress

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    The effects of salinity stress on the physiological processes and biochemical compounds of plants were reported. Salicylic acid (SA), as one of the main phytohormones, is a signal molecule that alleviates the negative influences of salinity. This study was conducted to investigate the protective role of SA in improving the salinity tolerance of two almond cultivars. Two almond cultivars (\u27Tuono\u27 and \u27Sahand\u27) grafted on the GN (Garnem) rootstock were exposed to different levels of salinity stress (0, 2, 6 and 8 dS·m-1) and treated with SA (0, 1 and 2 mM). The results showed that salinity stress significantly reduced the plant height, Fv/Fm, protein and total phenolic content (TPC), whereas Na and Cl content in roots, proline content and antioxidant enzymes activities, including superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), guaiacol peroxidase (POD) and glutathione peroxidase (GPX), significantly increased in response to salinity stress. Rootstock and scion diameter, and also leaves number of selected shoots significantly increased at 2 and 6 dS·m-1 of salinity, and then significantly decreased at 8 dS·m-1 of salinity. Furthermore, it was found SA treatment significantly alleviated the negative effects of salinity by enhancing morphological characteristics, Fv/Fm, accumulation of Na and Cl in roots, proline content, protein and TPC and also by enhancing the SOD, CAT, APX, POD and GPX activities. Taken together, the results showed that \u27Sahand\u27 cultivar treated with SA had a better response to salinity stress compared with \u27Tuono\u27 cultivar. Therefore, the use of \u27Sahand\u27 cultivar and application of SA could be recommended as a practical tool under salinity conditions

    Independent System of Jurisdiction of International Criminal Court Over the Crime of Aggression

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    There was serious controversy in the 1996 negotiations on the drafting of the ICC Statute on putting aggression on the list of crimes under the jurisdiction of the tribunal, which in turn stemmed from disagreements over the terms of Exercise of the ICC’s jurisdiction. The Review Conference's amendments in 2010 and Assembly state parties 2017 introduced specific rules regarding ICC’s jurisdiction for aggression that differ from the usual jurisdiction of the Court in respect of other crimes within its jurisdiction. It also lacks a clear and precise explanation for ICC’s specific jurisdiction over the crime of aggression, which has sometimes led to disagreements among jurists. Therefore, this paper will examine the ambiguous points of this jurisdiction regime in the Statute as well as the difficulty of applying ICC’s jurisdiction over the crime of aggression after July 17, 2018

    Prioritizing Public- Private Partnership Models for Public Hospitals of Iran Based on Performance Indicators

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    Background: The present study was conducted to scrutinize Public- Private Partnership (PPP) models in public hospitals of different countries based on performance indicators in order to se-lect appropriated models for Iran hospitals.Methods: In this mixed (quantitative-qualitative) study, systematic review and expert panel hasbeen done to identify varied models of PPP as well as performance indicators. In the second stepwe prioritized performance indicator and PPP models based on selected performance indicatorsby Analytical Hierarchy process (AHP) technique. The data were analyzed by Excel 2007 andExpert Choice11 software’s.Results: In quality – effectiveness area, indicators like the rate of hospital infections(100%), hospital accidents prevalence rate (73%), pure rate of hospital mortality (63%), patientsatisfaction percentage (53%), in accessibility equity area indicators such as average inpatientwaiting time (100%) and average outpatient waiting time (74%), and in financial – efficiency area,indicators including average length of stay (100%), bed occupation ratio (99%), specific incometo total cost ratio (97%) have been chosen to be the most key performance indicators. In the prioritizationof the PPP models clinical outsourcing, management, privatization, BOO (build, own,operate) and non-clinical outsourcing models, achieved high priority for various performance indicatorareas.Conclusion: This study had been provided the most common PPP options in the field of public hospitals and had gathered suitable evidences from experts for choosing appropriate PPP option for public hospitals. Effect of private sector presence in public hospital performance, based on which PPP options undertaken, will be different
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