Howard Turner Barnes 1873-1950

1952 ◽  
Vol 8 (21) ◽  
pp. 24-35 ◽  

Howard Turner Barnes rapidly came to prominence for his part in the high precision basic experiments in classical physics which first set an international standard in the science at McGill University. Most noteworthy are his determinations of the mechanical equivalent of heat and of the specific heat of water over the full range of temperature. Later he studied ice formation and became world famous, not only for his highly original and practical methods for the removal of ice jams, but for the great skill with which he used them. Born at Woburn, Massachusetts on 21 July 1873, Howard was the son of Reverend William S. Barnes, LL.D., and of Mary Alice ( Turner). At the age of six he came to Montreal with his parents. Here his father founded the Unitarian Church and is remembered as a noted clergyman of his time. Howard was tutored by Reverend John Williamson and attended Montreal Academy before entering McGill University. He received the degree of B.A.Sc. in 1893, just as the new Macdonald Physics Building was completed. Barnes immediately began a series of coordinated and well-sustained fundamental researches while at the same time holding posts in the University of rapidly increasing rank. He was appointed Macdonald Professor of Physics and Director of the Laboratory at the early age of thirty-four. Professor Barnes selected important research problems and quickly grasped the real practical difficulties of each problem in complete detail. While courage, imagination and resourcefulness were essential, the great amount of work done in a relatively short period demonstrates an intuition that was unfailing throughout his scientific life. The dispatch with which the work proceeded equally well in the laboratory or in the field cannot be dissociated from the nobility of Professor Barnes, and his charming simplicity.

2014 ◽  
Vol 2014 ◽  
pp. 1-25 ◽  
Author(s):  
Behrouz Farhang-Boroujeny

Recent discussions on viable technologies for 5G emphasize on the need for waveforms with better spectral containment per subcarrier than the celebrated orthogonal frequency division multiplexing (OFDM). Filter bank multicarrier (FBMC) is an alternative technology that can serve this need. Subcarrier waveforms are built based on a prototype filter that is designed with this emphasis in mind. This paper presents a broad review of the research work done in the wireless laboratory of the University of Utah in the past 15 years. It also relates this research to the works done by other researchers. The theoretical basis based on which FBMC waveforms are constructed is discussed. Also, various methods of designing effective prototype filters are presented. For completeness, polyphase structures that are used for computationally efficient implementation of FBMC systems are introduced and their complexity is contrasted with that of OFDM. The problems of channel equalization as well as synchronization and tracking methods in FBMC systems are given a special consideration and a few outstanding research problems are identified. Moreover, this paper brings up a number of appealing features of FBMC waveforms that make them an ideal choice in the emerging areas of multiuser and massive MIMO networks.


1993 ◽  
Vol 32 (05) ◽  
pp. 365-372 ◽  
Author(s):  
T. Timmeis ◽  
J. H. van Bemmel ◽  
E. M. van Mulligen

AbstractResults are presented of the user evaluation of an integrated medical workstation for support of clinical research. Twenty-seven users were recruited from medical and scientific staff of the University Hospital Dijkzigt, the Faculty of Medicine of the Erasmus University Rotterdam, and from other Dutch medical institutions; and all were given a written, self-contained tutorial. Subsequently, an experiment was done in which six clinical data analysis problems had to be solved and an evaluation form was filled out. The aim of this user evaluation was to obtain insight in the benefits of integration for support of clinical data analysis for clinicians and biomedical researchers. The problems were divided into two sets, with gradually more complex problems. In the first set users were guided in a stepwise fashion to solve the problems. In the second set each stepwise problem had an open counterpart. During the evaluation, the workstation continuously recorded the user’s actions. From these results significant differences became apparent between clinicians and non-clinicians for the correctness (means 54% and 81%, respectively, p = 0.04), completeness (means 64% and 88%, respectively, p = 0.01), and number of problems solved (means 67% and 90%, respectively, p = 0.02). These differences were absent for the stepwise problems. Physicians tend to skip more problems than biomedical researchers. No statistically significant differences were found between users with and without clinical data analysis experience, for correctness (means 74% and 72%, respectively, p = 0.95), and completeness (means 82% and 79%, respectively, p = 0.40). It appeared that various clinical research problems can be solved easily with support of the workstation; the results of this experiment can be used as guidance for the development of the successor of this prototype workstation and serve as a reference for the assessment of next versions.


Emergency management is one of the priorities of the contemporary universities, because of the risks faced by the university work of academic and technical fields. This risk may be the result of the nature of the work done by the human element or of natural disasters or through the risks integrated between them. The study aimed to determine the availability of security and safety procedures in the Islamic University facilities in the Gaza, Palestine. Also, to prepare proposed scenarios for emergency management based on risk assumptions. The study used the descriptive and analytical methodologies of the situation in laboratory facilities and engineering workshops by using the interview tool with the emergency specialists in the safety and security committee. The most important results of the study were that the security and safety standards of the Islamic University are not directly defined by international, regional or national standards, but the necessary requirements are deducted from the University. Also, the risks that threaten the University include: fire risk, the risk of explosions, the risk of bombing, mechanical hazards and human hazards, where the risk of fire is most likely. The study recommended the need to form an emergency committee to include all faculties in the University and work to determine the responsibilities accurately, also prepare a guide to educate students and staff of the threats of risks at the Islamic University, and the formation of a specialized team to evacuate facilities and evacuate the special needs in the event of an emergency. Keywords: The Islamic University-Gaza, Emergency, Risk, Security and Safety, Emergency Response. --------------------------------------------- تعد إدارة الطوارئ من الأولويات لدى الجامعات المعاصرة؛ وذلك لما يتعرض له العمل الجامعي من مخاطر في المجالات الأكاديمية والفنية، وهذا الخطر قد يكون ناتجاً عن طبيعة العمل الذي يقوم به العنصر البشري أو من الكوارث الطبيعية أو من خلال المخاطر المدمجة بينها. هدفت الدراسة إلى تحديد مدى توافر إجراءات الأمن والسلامة في مرافق الجامعة الإسلامية بغزة، فلسطين، مع إعداد سيناريوهات مقترحة لإدارة الطوارئ في الجامعة الإسلامية بناءً على فرضيات الخطر. وتم استخدام المنهج الوصفي والمنهج التحليلي للوضع القائم في المرافق المخبرية والمشاغل الهندسية, وذلك من خلال استخدام أداة المقابلة مع المختصين في مجال الطوارئ في لجنة الأمن و السلامة. كانت أهم نتائج الدراسة أن معايير الأمن والسلامة المتبعة في الجامعة الإسلامية غير محددة بشكل مباشر من المعايير الدولية أو الإقليمية أو الوطنية، ولكن يتم استقطاع ما يلزم الجامعة منها، كذلك المخاطر التي تهدد الجامعة الإسلامية تشمل خطر الحريق، وخطر الانفجارات، وخطر القصف، والأخطار الميكانيكية, والمخاطر البشرية بحيث تعتبر مخاطر الحريق الأكثر احتمالاً. وقد أوصت الدراسة بضرورة تشكيل لجنة طوارئ تشمل كل الكليات في الجامعة, وتحديد المسئوليات بها بدقة، وإعداد دليل إرشادي معلن للتوعية الطلبة والعاملين من المخاطر التي تهدد الجامعة، وتشكيل فريق متخصص لإخلاء المرافق وإخلاء ذوي الاحتياجات الخاصة في حالة حدوث طارئ. الكلمات المفتاحية: الجامعة الإسلامية بغزة، إدارة الطوارئ، المخاطر، الأمن والسلامة، الاستجابة للطوارئ.


Author(s):  
Robert Garner ◽  
Yewande Okuleye

This book is an account of the life and times of a loose friendship group (later christened the Oxford Group) of ten people, primarily postgraduate philosophy students, who attended the University of Oxford for a short period of time from the late 1960s. The Oxford Group, which included—most notably—Peter Singer and Richard Ryder, set about thinking about, talking about, and promoting the idea of animal rights and vegetarianism. The group therefore played a role, largely undocumented and unacknowledged, in the emergence of the animal rights movement and the discipline of animal ethics. Most notably, the group produced an edited collection of articles published as Animals, Men and Morals in 1971 that was instrumental in one of their number—Peter Singer—writing Animal Liberation in 1975, a book that has had an extraordinary influence in the intervening years. The book serves as a case study of how the emergence of important work and the development of new ideas can be explained, and, in particular, how far the intellectual development of individuals is influenced by their participation in a creative community.


Author(s):  
Ruchi Ram Sahni

In this chapter Ruchi Ram Sahni recounts what he calls the most depressing and unpleasant incident of his life. It involved his supersession for the position of Professor-in-Charge of the Chemistry Department at the Government College, Lahore, by a much younger Englishman, fresh from university. The post in question was vacated by an English colleague, a Senior Professor, with whom the author had a difficult relationship involving a dispute about who was to be selected for the post of Examiner in the university examinations. This colleague went on to write a secret report against Sahni, resulting in his supersession despite his vast seniority. Sahni relates the psychological trauma resulting from this experience, and its contribution to strengthen his resolve to leave Lahore for a short period to do research in Europe.


1973 ◽  
Vol 19 ◽  
pp. 234-267 ◽  

James Bertram Collip was a pioneer in endocrine research, especially in its biochemical aspects. Following an excellent training in biochemistry under Professor A. B. Macallum, F.R.S., at the University of Toronto, he spent thirteen years at the University of Alberta in Edmonton. There was a momentous year at the University of Toronto about midway through the Edmonton period; this coincided with the discovery of insulin by Sir Frederick G. Banting, F.R.S., and Professor Charles S. Best, F.R.S., and the experience altered the course of his career. Henceforth, Professor Collip’s life was dominated by an urge to discover hormones that would be useful in clinical medicine. Success attended these efforts, first in the isolation of the parthyroid hormone, called parathormone, while he was at the University of Alberta and later in the identification of placental and pituitary hormones during particularly fruitful years at McGill University. There were other important facets to Professor Collip’s career. These included the training of young scientists, many of whom subsequently came to occupy positions of responsibility, work with the National Research Council of Canada, and in his latter years an important contribution as Dean of the Faculty of Medicine, University of Western Ontario. In addition to a life of fulfilment through accomplishments of scientific and medical importance, Professor Collip’s career was enriched by a happy family life and by the friendship of a host of individuals who were attracted to his brilliance as a scientist and his warm personality.


PEDIATRICS ◽  
1983 ◽  
Vol 72 (4) ◽  
pp. 581-582
Author(s):  
R. CURTIS ELLISON ◽  
GEORGE J. PECKHAM ◽  
PETER LANG ◽  
NORMAN S. TALNER ◽  
TRUDY S. LERER ◽  
...  

In Reply.— We appreciate the comments of Kashani, Swensson and Merritt. We are cognizant of the pioneering work done through the years at the University of California at San Diego in relation to the management of respiratory distress syndrome (RDS). The multicenter trial1 established diagnostic criteria for patent ductus arteriosus (PDA) in 1978. In view of the unknown toxicity of indomethacin at that time, high specificity rather than maximum sensitivity was of prime concern. We wanted to enroll in our trial only those infants in whom the degree of ductal shunting was leading to sufficient cardiopulmonary compromise to cause a threat to the infant and to warrant the use of a potentially toxic drug or surgery.


Author(s):  
Maria A. Andrianova ◽  

The pandemic has created many difficulties for entrepreneurs around the world, including in Russia. As you know, difficulties, disrupting the usual order, can give impetus for radical changes that would not have a chance to be realized in times of peace and prosperity. It seems that remote mode is not suitable for all forms of employment, but if initially the employer assumes such an opportunity, the main problem is not the lack of the ability to control the employee, but ensuring effective communication with him and the ability to timely obtain the results of high-quality work done. It is noted that this goal can be achieved with the help of greater detail in local regulations of the order and conditions of interaction between the employee and the employer. One of the most promising consequences of the pandemic has been the reform of the legal regulation of remote work. In a very short period of time, remote work in Russia from an unviable rudiment has become one of the most progressive institutions, which has every chance of making all labor law more flexible and effective. Such labor law will undoubtedly become one of the incentives for the development of entrepreneurship in Russia.


Author(s):  
A. R. Mackintosh

In 1907 Ernest Rutherford (later named ‘The Crocodile’ by Peter Kapitza), 36 years old and already a world–famous physicist, moved from McGill University in Montreal, Canada, to the University of Manchester, England. In the same year Niels Bohr (later known by some as ‘The Elephant’––he was one of the very few non–royal recipients of the Order of the Elephant), a 22–year–old student at the University of Copenhagen, received the gold medal of the Royal Danish Academy for his first research project, an experimental and theoretical study of water jets. During the next 30 years, until Rutherford's death in 1937, these two great scientists dominated quantum physics. Rutherford was the father of nuclear physics; together they founded atomic physics; and, with their students and colleagues, they were responsible for the great majority of the decisive advances made in the inter–war years. This lecture tells the story of the development in quantum physics, and makes some comparisons between Bohr and Rutherford–as men and scientists–drawing especially on their extensive correspondence between 1912 and 1937, the material that Bohr gathered in connection with the publication in 1961 of his Rutherford Memorial Lecture, the interviews that he gave just before his death in 1962, and other published and unpublished material from the Niels Bohr Archive in Copenhagen.


2012 ◽  
Vol 26 (2) ◽  
pp. 23-28
Author(s):  
Anna Ogonowska-Słodownik

Abstract Introduction: Regular physical activity can prevent sharp decline in the level of physical fitness of older people [1]. Both the quantity and quality of physical activity are important [2]. The aim of this study was to evaluate selected forms of physical activity of older people in terms of intensity of effort. Material and methods: In the study participated 10 women at the age of 73.6 ± 6.5 years, from the Third Age University at the University of Physical Education in Warsaw. The study included four forms: gymnastics, Nordic walking, dancing and Tai Chi. The study used IDEEA device (Intelligent Device for Energy Expenditure and Activity) and a pulse recorder (Polar). In addition, each of the woman immediately after class evaluated its intensity with the 20 points Borg Scale. Results: The results indicate a large diversity of physical activity in terms of work done, energy consumption, heart rate. Nordic Walking classes were most intense (2.8 kJ/min, 3.5 kcal/min, 101.5 beats/min) and Tai Chi was least intense (0.5 kJ/min, 1.6 kcal/min , 65 beats/ min). Subjective evaluation of intensity (Borg Scale) of the trainings confirms the values obtained by the objective methods - quite heavy (14 points) in Nordic Walking and very light (10 points) in Tai Chi. Conclusions: There is a need for a reliable analysis of proposed forms for the elderly in Poland. Using multiple measurement tools will help to increase the objectivity of the evaluation and defining their impact on the capabilities of older people. A comprehensive assessment can be used in programming physical activity for older people.


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