Lack of affective priming indicates attitude-behaviour discrepancy for COVID-19 affiliated words

The ongoing novel coronavirus (COVID-19) pandemic has resulted in the enforcement of national public health safety measures including precautionary behaviours such as border closures, movement restrictions, total or partial lockdowns, social distancing, and face mask mandates in order to reduce the spread of this disease. The current study uses affective priming, an indirect behavioural measure of implicit attitude, to evaluate COVID-19 attitudes. Explicitly, participants rated their overall risk perception associated with contracting COVID-19 significantly lower compared to their perception of necessary precautions and overall adherence to public health measures. During baseline trials, participants explicitly rated COVID-19 affiliated words as unpleasant, similar to traditional unpleasant word stimuli. Despite rating the COVID-19 affiliated words as unpleasant, affective priming was not observed for congruent prime-target COVID-19 affiliated word pairs when compared to congruent prime-target pleasant and unpleasant words. Overall, these results provide quantitative evidence that COVID-19 affiliated words do not invoke the same implicit attitude response as traditional pleasant and unpleasant word stimuli, despite conscious explicit rating of the COVID-19 words as unpleasant. This reduction in unpleasant attitude towards COVID-19 related words may contribute towards decreased fear-related behaviours and increased incidences of risky-behaviour facilitating the movement of the virus.

Mathematical Modelling and Attitude Control of Quadcopter based on Classical Controller

The development of vertical take-off and landing (VTOL) aircrafts has been increasing in recent years due to growing demands in various sectors for critical missions and time saving purpose. There are number of configurations exist for VTOL airframe such as single-main-rotor, tandem rotor, coaxial rotor, tri-rotor, quad-rotor and hexa-rotor. Among various configurations quad-rotor and hexa-rotor configurations have been chosen frequently for various applications through miniature aircrafts. The components and subsystems of such configurations have been widely available for easy integration and flight tests. In addition to that, classical control methods such as proportional-integral-derivative (PID) controllers have been widely employed for better control of such aircrafts with stable operation. Even though the control methods are available with high performance flight controller boards, the attainment of quicker attitude response and better stability will be a major problem during the flight testing phase for quadcopters and hexacopters. Therefore, instead of directly going into the development of quadcopters, there should be a need for simulating their responses with models of actual configuration. In this paper, a quadcopter dynamics for roll, pitch, and yaw have been modelled as mathematical equations and its response have been simulated in MATLAB using classical control tools. The results have shown that the modelled dynamics respond faster with better stability.

Tolerance of Gastro-Intestinal Endoscopy without Sedation: An Experience in a Tertiary Level Hospital in Bangladesh

Background: Upper and lower GI endoscopy are the most exigent procedure to diagnose various diseases in gastroenterology. Acceptability and tolerability of Endoscopy are variable due to its way of approach to the individuals. Negative attitude towards these procedures can be overcome by proper motivation of patients regarding importance of the tests and also by explaining the additional sideeffects of sedatives, cost and time to spend for tests.Objective: The aim of this study was undertaken to see the attitude, response during procedure, easiness of finding lesions and completeness of these procedures without sedation.Methodology: This was a cross-section study. Samples were collected purposively of whom age were between 13 and 65 of either sex and who underwent Upper and Lower GI procedures in the department of Gastroenterology, Shaheed Suhrawardy Medical Hospital from January 2016 to October 2016. This study was approved by the Ethical review board of Shaheed Suhrawardy Medical College.Results: Among 1205 patients, 724 (Upper GI 663 and lower GI 61) patients were male and 481 (Upper GI 433 and lower GI 48) were female. 58.26% patients showed positive attitude towards GI procedures through both upper and lower route. 57.61% male and 46.19% female well tolerated upper GI endoscopy, whereas 37.70% male and 43.75% female tolerated lower GI endoscopy. Procedures were successfully completed in 97.89 % male and 97.22% female patients of UGI and 96.72 male and 85.42% female patients of LGI endoscopy without sedation.Conclusion: Endoscopy of both upper and lower gastrointestinal tract can safely and effectively be done without sedation.Journal of National Institute of Neurosciences Bangladesh, 2018;4(2): 141-144

The closed-loop kinematics modeling and numerical calculation of the parallel hexapod robot in space

The Lie group Denavit–Hartenberg method and application in the parallel hexapod robot are researched. The hexapod robot and the ground form opened and closed loop alternately; the complete kinematics equation cannot be derived by Denavit–Hartenberg method with a trigonometric function type. The complete kinematics model of the hexapod robot is constructed with the improved Denavit–Hartenberg method. The numerical solving strategy is schemed. The simulation results provide the positive and athwart kinematics response relation during the lift and forward patterns in space. The research shows that the complete kinematics model can be constructed by the Lie group Denavit–Hartenberg method; the numerical calculation method can solve the pose–attitude response correctly.

IMPLEMENTASI ETIKA BISNIS MOBILE MARKETING RESELLER FASHION: PERSPEKTIF SEBAGAI PENJUAL DAN KONSUMEN

This study aims to determine the extent of the application of business ethics conducted by mobile marketing reseller of basic fashion as customer purchase decision. The type of research is descriptive, The data were collected from 8 (eight) respondents and they were the mobile marketing principals through the interview processes. These results indicate that the reseller business fashion in general has been implementing business ethics. because the transaction was not occured by face to face but in online then business ethics which should be applied in mobile marketing from the perspective as the seller and the consumer are included contact person, responding to consumer curiosity, honest and responsible of reseller fashion, setting the price that corresponding market price, providing good service, providing a sense of satisfaction for consumers. While the form of the application of business ethics reseller fashion as consumers are: creating a purchase decision quickly, attitude response from consumers and fulfilling promises. Keywords : Business Ethics, Mobile Marketing, Reseller Fashion