scholarly journals On the impact of velocity on the train-to-earth MIMO propagation channel: Statistical observations and qualitative analysis

Author(s):  
Claes Beckman ◽  
Johan Garcia ◽  
Stefan Alfredsson ◽  
Anna Brunstrom
2018 ◽  
Vol 7 (2.5) ◽  
pp. 15
Author(s):  
Zuhanis Mansor ◽  
Muhammad Khairulanwar bin Zulkafli

The initial deployments of antenna in the handset consist of fixed non-rotated antenna for transmitting and receiving the signal in the wireless communication scenario. However, link correlation at the UE shows very bad performance when the handset rotates in landscape position. This paper evaluates the impact of accelerometer on the downlink propagation channel of 3G smartphone for non-line-of-sight links. The performance average received signal power is studied for user equipment. Results show that the exploitation of an accelerometer provide better performance in terms of received signal power when the handset rotated from portrait to landscape position. It can be concluded that the deployment of accelerometer can be used to improve existing 3G smartphone received signal. Results also indicate that accelerometer can be used to improve downlink throughput since the signal-to-noise-power is increased by approximately 16%.


BMJ Open ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. e039357
Author(s):  
Sara Sorrell ◽  
Halah Ibrahim

ObjectivesMedical school serves as a critical developmental period for future physicians, during which students begin to form a professional identity. Just as personal appearance, particularly clothing, is an important external expression of one’s personal identity, ‘uniforms’ in healthcare, including white coats and scrubs, symbolise status and a group identity. There are, however, limited studies on the impact of physician attire on medical students’ formation of professional identity. Accordingly, through qualitative analysis of written narratives, we sought to analyse medical students’ experiences of wearing professional physician attire, namely scrubs, and how the uniform impacted their confidence level, performance and behaviours, as well as their identity as future physicians.DesignQualitative analysis of medical student’s written narratives.SettingKhalifa University College of Medicine and Health Sciences (KU CMHS) is a new medical school in the United Arab Emirates, with an inaugural class of 30 students admitted in August 2019. It is the only medical school in the city of Abu Dhabi, and the only school in the country that follows a postgraduate medical curriculum.ParticipantsAll first year medical students at KU CMHS were purposively sampled.MethodsStudents completed a voluntary online anonymous questionnaire. We employed a social identity approach to data analysis. Thematic content analysis was conducted on their narratives to identify themes.ResultsWe identified three major themes, namely (1) emotions, (2) logistics and (3) interpersonal relationships.ConclusionsMedical students form early perceptions regarding physician attire and its impact on their professional identity. Engaging in conversations regarding professional attire with educators or mentors could provide an important opportunity for students to discuss and explore professional identity early in training.


Author(s):  
Santiago Boira Sarto ◽  
Yolanda López del Hoyo ◽  
Lucía Tomás Aragonés ◽  
Ana Rosa Gaspar

La tardía implantación en España de programas de intervención con hombres maltratadores enfatiza la necesidad de desarrollar investigaciones que maximicen la eficacia de los tratamientos. Hasta el momento, han sido escasos los estudios publicados que evalúen las variables relacionadas con la permanencia o el abandono del tratamiento y su eficacia, y todavía más escasos los que han estudiado este tema desde un punto de vista cualitativo. El objetivo del estudio es identificar aspectos clave en los programas de intervención que puedan mejorar la eficacia de los tratamientos para hombres condenados por un delito de violencia de género a los que se les ha suspendido o sustituido la ejecución de la pena de prisión por la realización del programa terapéutico. Para ello se ha analizado cualitativamente la información obtenida en dos grupos de discusión formados por los psicólogos que aplicaron el programa y distribuidos según el tipo de terapia, individual o grupal.Los resultados reflejan la conveniencia de considerar la especificidad de este contexto de intervención en el diseño de los programas y en la evaluación. Deberán mejorarse las estrategias que aumenten la motivación, la alianza terapéutica y la adherencia de los hombres al tratamiento. Además habrá que ampliar las estrategias de evaluación para que ofrezcan una información cualitativamente diferente y permitan una valoración global del impacto del tratamiento y el riesgo para la víctima.The late implementation in Spain of intervention programmes for male abusers stresses the need to carry out research that can maximise the effectiveness of such treatment. Up till now, very few studies have been published that assess the variables relating to the continuation or abandonment of the treatment and its efficiency, and there are even fewer studies that examine this subject from a qualitative standpoint. The object of the study is to identify key aspects in the intervention programmes that can enhance the efficiency of the treatment offered to men that have been convicted for a crime involving domestic violence, and who have had their prison sentence suspended or commuted to a programme entailing therapy. With this aim in mind, a qualitative analysis is conducted of the data obtained in two discussion groups formed by psychologists who applied the programme and who are distributed in accordance with the type of therapy �individual or group-oriented� they administered.The findings reflect the convenience of considering the specifics of this context of intervention in the design of such programmes, along with their assessment. Strategies should be improved to enhance motivation, and also to strengthen the therapeutic alliance and ensure that the men stick to the treatment. We will also have to broaden our assessment strategies so that they offer data that is qualitatively different and can enable an overall assessment to be made of the impact of the treatment and the risk to the victim.


2020 ◽  
Vol 2019 (1) ◽  
pp. 191
Author(s):  
Sachiko Maruoka ◽  
Emiko Matsui

In L2 acquisition, there has long been a debate as to whether instructors should conduct classes in English or through the approach of code-switching. This study was conducted to investigate the impact on learning anxiety in classes taught only in English. The survey was conducted with 55 students at a university in central Tokyo. A questionnaire and interviews were carried out to see how the students’ learning anxiety changed over a period of four months of instruction. The results showed that the students with prior experience of lessons conducted in English (LCE) had reduced learning anxiety over the period. Qualitative analysis was also conducted regarding the factors in students’ learning anxiety. The researchers argue that the results of this research can be used to enhance teacher efficacy through the sharing the effects of lessons conducted in English with instructors teaching English in Japan. 第二言語習得において教員の間では、オールイングリッシュあるいはコードスィッチングのどちらがより効果的に英語の指導ができるか長い間議論されている。本研究では、オールイングリッシュ指導がもたらす影響を論証する。東京都内の大学に在籍する大学生55名を対象にアンケートと個別面談を実施し、オールイングリッシュクラスを受講する学生の不安度が4ヶ月でどのように変化したかを分析した。その結果、大学入学前にオールイングリッシュクラスの受講経験を有する学生は、英語学習に対する不安度を有意に軽減させたことが分かった。また、学生が授業で感じた不安材料とそれに影響を与えた要素を考察した。その研究結果をもとに、オールイングリッシュ指導の有効性や今後教員間で効果的な指導のために共有できるものはなにかを提案し論じる。


2019 ◽  
Vol 11 (9) ◽  
pp. 2693 ◽  
Author(s):  
Cong Cheng ◽  
Liebing Cao ◽  
Huihui Zhong ◽  
Yining He ◽  
Jiahong Qian

Adopting the empowerment perspective of leadership, this study proposes and examines the mediating model that leader encouragement of creativity affects innovation speed through strengthening employees’ engagement in the creative process. Using a sample of 245 participants in China, the results from structural equation modeling (SEM) suggest that the impact of leader encouragement of creativity on innovation speed is significantly mediated by creative process engagement, and positively moderated by organizational ambidexterity at the same time. Additionally, the results from fuzzy-set comparative qualitative analysis (fsQCA) with the same data set reveal that the aforementioned factors have a holistic effect on enhancing innovation speed. The results of fsQCA reinforce and refine the findings of the SEM analysis concerning the limits and conditions for how leader encouragement of creativity affects innovation speed.


2013 ◽  
Vol 13 (1) ◽  
Author(s):  
Maman Joyce Dogba ◽  
Christophe Bedos ◽  
Michaela Durigova ◽  
Kathleen Montpetit ◽  
Trudy Wong ◽  
...  

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