Indoor Radon Radioactivity at the University of Brunei Darussalam

Air Quality ◽  
2003 ◽  
pp. 75-80
Author(s):  
Tan Kha Sheng ◽  
Hu Shze Jer
2003 ◽  
Vol 160 (1-2) ◽  
pp. 75-80 ◽  
Author(s):  
T.K. Sheng ◽  
H.S. Jer

2009 ◽  
Vol 24 (2) ◽  
pp. 94-99 ◽  
Author(s):  
Zora Zunic ◽  
Kevin Kelleher ◽  
Igor Celikovic ◽  
Predrag Ujic ◽  
Johan Paridaens ◽  
...  

Indoor radon retrospective concentrations were obtained and compared using two radon measurement methods. Both methods rely on the measurement of the long-lived radon progeny 210Pb, collected either on the surfaces (surface trap technique), most frequently glass, or in a volume trap, usually sponge from furniture (volume trap technique). These techniques have been used to retrospectively estimate radon gas concentrations that have existed in dwellings in the past. The work presented here compares the results provided by the surface trap technique devised at the University College of Dublin, Ireland, and the volume trap technique devised at the Scientific Research Center, Mol, Belgium. The field campaign was carried out by the research team of the ECE Laboratory of the Vinca Institute of Nuclear Sciences at the spa of Niska Banja, identified as a region of Serbia with a high indoor radon and ground water radium and radon content.


2016 ◽  
Vol 26 (8) ◽  
pp. 1051-1061 ◽  
Author(s):  
Dong Xie ◽  
Maili Liao ◽  
Hanqing Wang ◽  
Kimberlee J. Kearfott

Measurements of indoor radon concentrations and environmental parameters were collected continuously on an hourly basis over a three-month period (April 2012 to June 2012). These were performed both in a well-ventilated ground floor laboratory and in the unventilated basement directly below it in a two-storey building at the University of Michigan, USA. The diurnal variations of indoor radon concentration were investigated along with their correlations to the environmental parameters. The results showed that in the laboratory with typical air exchange, the highest radon values appeared in the early morning while lower values emerged in the afternoon. A similar time-course was followed by radon concentrations in the basement with stagnant air. The day-average radon concentrations in the laboratory ranged from 27 ± 2 Bq m−3 to 54 ± 5 Bq m−3, with the overall mean of 37 ± 6 Bq m−3 over the three-month data collection period. The overall basement average, 900 ± 92 Bq m−3 is significantly higher than the population-weighted world average value of 39 Bq m−3. For the ground-level laboratory, the indoor humidity, outdoor temperature and indoor–outdoor temperature difference were positively correlated with indoor radon. The indoor radon negatively correlated with outdoor barometric pressure, wind speed and indoor–outdoor barometric pressure differences. However, for the unventilated basement, the only statistically significant correlation of indoor radon concentration was a positive one with hourly rainfall.


2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Chief Editor Of Borneo J Pharm

Starting from this edition, Borneo J Pharm make changes to the template in the article that will be published. The amendment aims to make it easier for readers to observe essential parts of each page of the article.In this edition we succeeded in obtaining several achievements, including publishing all English-language articles, and successfully gaining support from several international reviewers from various countries, such as Brunei Darussalam, Russia, India and Libya. We will ensure this achievement as a start and will continue to improve the quality of Borneo J Pharm in the future.The aim of this journal is to publish high-quality articles dedicated to all aspects of the latest outstanding developments in the field but not limited to Pharmacology-Toxicology, Pharmacognosy-Phytochemistry, Pharmaceutical, Analytical Pharmacy-Medicinal Chemistry, Natural Product Development, Clinical-Community Pharmacy, Management Pharmacy, and other Pharmacy aspects. This edition contains six articles consisting of Pharmacology-Toxicology, Pharmaceutical, Analytical Pharmacy-Medicinal Chemistry, Natural Product Development, and Management Pharmacy topics.Editorial boards are fully aware that there are still room for improvement in this edition, hence with all humility willing to accept constructive suggestions and feedback for improvements to the publication for the next editions. The editorial board would like to thank the University, all editors and reviewers, and contributors of the scientific articles who have provided the repetoire in this issue. We hope that all parties, especially the contributors of the articles, could re-participate for the success of the publication in the next edition on November 2019.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Masitah Shahrill ◽  
Mohamad Iskandar Petra ◽  
Lin Naing ◽  
Joanna Yacob ◽  
Jose H. Santos ◽  
...  

PurposeThis paper aims to share how it was possible to change the way business was conducted in a short period in order to continue the academic semester and seek alternatives to manage the day-to-day university affairs in the midst of a pandemic crisis at a higher education setting. As a result, the authors’ experiences have created new norms and opportunities for the university.Design/methodology/approachThe coronavirus disease 2019 (COVID-19) pandemic in Brunei Darussalam is an evolving situation with extraordinary challenges for staff and students of the university. Although the campus remains open and essential services were continuously provided, the university had to implement and adapt to new norms instinctively to minimise the potential pathways for community spread of the coronavirus and at the same time minimise interruption in teaching and learning.FindingsFirstly, structured blended learning will be the basis of teaching and learning, alongside ensuring the highest quality of online education and successful achievement of the intended learning objectives. Secondly, blended learning will open more opportunities to offer programmes in a more flexible, personalised, student-centric and lifelong learning manner, with the option of taking a study hiatus at students' convenience. Thirdly, there will be more global classrooms and the exchange of online modules with international partner universities. Fourthly, short programmes such as the Global Discovery Programmes will be modified and improvised to become an online learning experience. And finally, there will also be the opportunity to understand and consider the physical and mental well-being and durability of the university community in overcoming a national crisis situation.Originality/valueThis paper is intended to be a conceptual paper where the authors describe novel experiences during the pandemic. The authors’ views, interventions and experiences may result into a new model for higher education that will reposition students to the new global markets and economy.


1994 ◽  
Vol 74 (3) ◽  
pp. 1023-1026 ◽  
Author(s):  
David Watkins ◽  
Jim Murphy

The original English version, a simplified English as a Second Language (ESL) version, and a Malay translation of the Study Process Questionnaire were administered to 192, 257, and 75 students, respectively, from the University of Brunei Darussalam. The ESL version showed the highest coefficients of internal consistency reliability for the scales, followed by the English and Malay versions. Similar factor structures were found for responses to all three versions. The ESL version may be preferable for administration to students for whom English is the medium of instruction but not their first language. The motive and strategy model of learning proposed by J. B. Biggs in 1987 and 1993 seems appropriate for Brunei students.


2019 ◽  
Vol 13 (27) ◽  
pp. 97-101
Author(s):  
Ali A. Ridha

In the present work, a set of indoor Radon concentration measurements was carried out in a number of rooms and buildings of Science College in the University of Mustansiriyah for the first time in Iraq using RAD-7 detector which is an active method for short time measuring compared with the passive method in solid state nuclear track detectors (SSNTD's). The results show that, the Radon concentrations values vary from 9.85±1.7 Bq.m-3 to 94.21±34.7 Bq.m-3 with an average value 53.64±26 Bq.m-3 which is lower than the recommended action level 200-300 Bq/m3 [ICRP, 2009].The values of the annual effective dose (A.E.D) vary from 0.25 mSv/y to 2.38 mSv/y, with an average value 1.46±0.67 mSv/y which is lower than the recommended the range 3-10 mSv/y [ICRP, 1993]. While the values of lung cancer cases per year per million person vary from 4.50 per million person to 42.84 per million person with an average value 24.35±12 per million person which is lower than the recommended range 170-230 per million person [ICRP, 1993].The values of the potential alpha energy concentration were found to vary from 10.18 mWL to 1.06 mWL, with an average value 5.79±2.8 mWL which is lower than the recommended value of 53.33 mWL given by [UNSCEAR, 1993].


PMLA ◽  
1935 ◽  
Vol 50 (4) ◽  
pp. 1343-1343

The fifty-second meeting of the Modern Language Associationof America was held, on the invitation of the University of Cincinnati, at Cincinnati, Ohio, Monday, Tuesday, and Wednesday, December 30 and 31, 1935, and January 1, 1936. The Association headquarters were in the Netherland Plaza Hotel, where all meetings were held except those of Tuesday morning and afternoon. These took place at the University of Cincinnati. Registration cards at headquarters were signed by about 900, though a considerably larger number of members were in attendance. The Local Committee estimated the attendance at not less than 1400. This Committee consisted of Professor Frank W. Chandler, Chairman; Professor Edwin H. Zeydel; Professor Phillip Ogden; Mr. John J. Rowe (for the Directors); and Mr. Joseph S. Graydon (for the Alumni).


1966 ◽  
Vol 24 ◽  
pp. 116-117
Author(s):  
P.-I. Eriksson

Nowadays more and more of the reductions of astronomical data are made with electronic computers. As we in Uppsala have an IBM 1620 at the University, we have taken it to our help with reductions of spectrophotometric data. Here I will briefly explain how we use it now and how we want to use it in the near future.


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