Herbert Olivecrona: founder of Swedish neurosurgery

1993 ◽  
Vol 78 (1) ◽  
pp. 142-149 ◽  
Author(s):  
Bengt Ljunggren

✓ Herbert Olivecrona (1891–1980) singlehandedly founded Swedish neurosurgery. At the International Congress in Neurology in Bern in August, 1931, Harvey Cushing invited the cream of the world's medical society to a private banquet. Among the 28 specially invited guests was Herbert Olivecrona. At 40 years old, Olivecrona took his seat with pioneers such as Otfrid Foerster, Percival Bailey, Hugh Cairns, Geoffrey Jefferson, and Sir Charles Sherrington. This suggests that Cushing was impressed by the Swedish aristocrat's didactic deeds when he visited the Serafimer Hospital in Stockholm 2 years earlier. During the mid-1920's, the radiologist Erik Lysholm greatly improved the technique of ventriculography and, challenged by Olivecrona, his diagnostic neuroradiology became of superior quality. In the early 1930's, utilizing technical innovations of his own, Lysholm became a master at demonstrating and localizing posterior fossa tumors, which Olivecrona then operated on. Olivecrona's clinic became the mecca to which many scholars, thirsting for more knowledge, went on a pilgrimage. The international reputation of the clinic was founded, not on epoch-making discoveries, but by the resolute and practical application of methods already launched elsewhere and the exemplary organization that Olivecrona had established in collaboration with Lysholm. In spite of hardships and primitive working conditions, the clinic at the Serafimer Hospital gradually developed into the ideal prototype for a modern neurosurgical department. Olivecrona trained many colorful personalities who later were to lay the foundation for neurosurgery in their home countries; these included Wilhelm Tönnis of Germany, Edvard Busch of Denmark, and Aarno Snellman of Finland. Olivecrona was a true pioneer who made major contributions in practically all fields of conventional neurosurgery.

2020 ◽  
Vol 34 (4) ◽  
pp. 499-511 ◽  
Author(s):  
Jessica L. Pallant ◽  
Sean Sands ◽  
Ingo Oswald Karpen

Purpose Increasingly, customers are demanding products that fit their individual needs. Many firms respond by cultivating product individualization via mass customization, often integrating this capability via interactive platforms that connect them with customers. Despite such customization, research to date has lacked cohesion, often taking the organizational, rather than customer, view. The purpose of this paper is to provide inconclusive theorizing in regard to customization from the consumers’ perspective. Design/methodology/approach The review and synthesis of the literature revealed that co-configuration is an underexplored domain of mass customization. Consequently, an initial conceptualization of co-configuration is developed and compared with current customization strategies. Specifically, the definition and boundary conditions of co-configuration are compared with three domains of mass customization, namely, co-production, co-construction and co-design. This led to the development of research priority areas to establish an agenda for future research on mass customization and its role in customer’ firm relationships. Findings This paper provides the delineation of four distinct consumer customization strategies, conceptualized in a matrix, and proposes separate customer journey visualizations. In advancing the theoretical understanding by means of a unifying typology, this paper identifies three existing Cs of mass customization (co-production, co-construction and co-design) and focuses specifically on a fourth (co-configuration), identified as an understudied mass customization strategy. Originality/value This paper extends the previous conceptualizations of mass customization comprising co-production, co-design and co-construction. The proposed typology establishes a foundation for four research priority areas that can improve both academic rigor and practical application.


2015 ◽  
Vol 35 (3) ◽  
pp. 269-280 ◽  
Author(s):  
Hu Qiao ◽  
Rong Mo ◽  
Ying Xiang

Purpose – The purpose of this paper is to establish an adaptive assembly, to realize the adaptive changing of the models and to improve the flexibility and reliability of assembly change. For a three-dimensional (3D) computer-aided design (CAD) assembly in a changing process, there are two practical problems. One is delivering parameters’ information not smoothly. The other one is to easily destroy an assembly structure. Design/methodology/approach – The paper establishes associated parameters design structure matrix of related parts, and predicts possible propagation paths of the parameters. Based on the predicted path, structured storage is made for the affected parameters, tolerance range and the calculation relations. The study combines structured path information and all constrained assemblies to build the adaptive assembly, proposes an adaptive change algorithm for assembly changing and discusses the extendibility of the adaptive assembly. Findings – The approach would improve the flexibility and reliability of assembly change and be applied to different CAD platform. Practical implications – The examples illustrate the construction and adaptive behavior of the assembly and verify the feasibility and reasonability of the adaptive assembly in practical application. Originality/value – The adaptive assembly model proposed in the paper is an original method to assembly change. And compared with other methods, good results have been obtained.


2014 ◽  
Vol 5 (1) ◽  
pp. 30-44 ◽  
Author(s):  
Qing-rui Meng

Purpose – The purpose of this paper is to reveal the temperature rise characteristics of the disc and pads under different load types. Design/methodology/approach – Evolutions of the disc and pads temperature under a stable, gradual changing and sine-wave contact pressures widely used at present are analyzed numerically by using ANSYS software. Findings – The results show that during the loading process, the temperature increases most rapidly under a stable contact pressure, most slowly under a gradual changing contact pressure; the disc temperature rise curves expose saw-shaped character, the closer it is to the friction surface, the more serious the fluctuations will be, the pads temperature rise curves are rather smooth; temperature gradient in the axial direction is higher than that in the other two directions under all of the three types of contact pressure and shows a sine-wave variation under a sine-wave contact pressure. Originality/value – It indicates that a gradual changing contact pressure should be adopted preferentially in practical application. The simulation results of this work provide theoretical basis for load simulation.


2015 ◽  
Vol 23 (4) ◽  
pp. 309-322
Author(s):  
Jacey A. Greece ◽  
Joanne G. Patterson ◽  
Sarah A. Kensky ◽  
Kate Festa

Purpose – The purpose of this paper is to examine the utility of a redesigned course assessment in a required, introductory Master of Public Health (MPH) course to demonstrate competency achievement through practical application. School of public health curricula are informed by competency-based education (CBE) to prepare students for the field. This is a challenge in introductory courses as traditional assessments do not translate into practical application of knowledge. Design/methodology/approach – This retrospective post-test-only evaluation examined a practice-based, multi-disciplinary assessment utilized in Fall 2014 (n = 63 students). Web-based surveys were administered three months after the course to participating students (n = 33), the teaching team or teaching teams (n = 7) and organization representatives (n = 3) to evaluate the utility of the assessment. Questions were analyzed descriptively using chi-square tests, where applicable responses were compared across groups. Findings – Results indicate that a practice-based assessment in an introductory MPH course may enhance student learning by fostering deeper appreciation and application of course content while more closely reflecting the collaborative, multi-disciplinary and problem-solving nature of practice. The assessment may also increase the depth of competency achievement and career preparedness. Practical implications – Institutions that are guided by CBE, train students for multi-disciplinary practice and are impacted by the changing landscape of the field may want to consider course assessments that mimic practice to best prepare students. Originality/value – Course assessments should be evaluated to ensure they appropriately measure competency achievement. This evaluation provides multiple perspectives on the process and outcome of a practice-based course assessment.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Udayan Dhar

PurposeThe purpose of this study is to investigate professional identity development among management professionals through the lens of the ideal self and personal values.Design/methodology/approachDetailed career vision essays based on the ideal self and personal values of 48 participants ranging in age from 22 to 54 were analyzed using an inductive thematic analysis. A theory-based classification of their personal values, collected through a survey, was also conducted as a supplemental analysis.FindingsThe visions of older management professionals were less career-oriented, more holistic, involved in a greater multiplicity of career roles, had more clarity and placed higher emphasis on work–life balance and on developing others. The older participants also reported having fewer self-enhancement values.Originality/valueThe findings demonstrate the relevance of the ideal self as a lens to study identity development and advance our understanding of professional identity development in the context of modern careers.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Amy Beardmore ◽  
Penny Beynon ◽  
Christine Crabbe ◽  
Carol Fry ◽  
Jan Fullforth ◽  
...  

Purpose International attention is increasingly turning to the challenge of creating age-friendly environments. This study aims to examine the application of asset-based approaches in undertaking community development projects with older people. The paper intends to share the learning that may be useful when designing community development projects for older people in the future. Design/methodology/approach This study followed a multiple project case study design, with a focus on project delivery practices. It was undertaken as a co-production exercise involving university researchers and trained older volunteer community researchers (CRs). Over 18–24 months of qualitative research was conducted in relation to six area-based urban projects between 2018 and 2020. Findings There were five leading themes as follows: mapping and building on assets in highly localised settings; creating governance and direction through steering groups; developing activities with diverse groups of older people; reaching isolated and lonely older people; building local capacity to embed sustainability. Practical implications The effectiveness of assets-based approaches in promoting age-friendly agendas appears to be contingent on the values, skills, capacity and resourcing of delivery agencies, alongside wider public sector investment in communities. Diversity and inequalities amongst older people need to be taken into account and community development that specifically focuses on older people needs to be balanced with the whole population and intergenerational practice. Originality/value This paper provides an empirical account of the practical application of assets practices specifically in the context of the age-friendly community agenda. The co-production method brings together insights from academic and volunteer older CRs.


2018 ◽  
Vol 33 (7) ◽  
pp. 544-560 ◽  
Author(s):  
Jatta Jännäri ◽  
Seppo Poutanen ◽  
Anne Kovalainen

Purpose This paper aims to analyse the ways the textual materials of job advertisements do the gendering for prospective expert positions and create a space for ambiquity/non-ambiquity in the gender labelling of this expertise. Expert positions are almost always openly announced and are important to organizations because they often lead to higher managerial positions. By gendering the prospective positions, the job advertisements bring forth repertoires strengthening the gendering of work and gendered expert employee positions. Design/methodology/approach This study draws on qualitative textual and visual data of open job advertisements for expert positions. The materials of the study are gathered from open job advertisements in two countries, i.e. Finland and Estonia with rather similar labour market structures in relation to gender positions but differing as regards their gender equality. Findings The analyses show that the gendering of expert work takes place in the job advertisements by rendering subtly gendered articulations, yet allowing for interpretative repertoires appear. The analysis reveals some differences in the formulations of the advertisements for expert jobs in the two countries. It also shows that in general the requirements for an ideal expert candidate are coated with superlatives that are gendered in rather stereotypical ways, and that the ideal candidates for highly expert jobs are extremely flexible and follows the ideal of an adaptable and plastic employee, willing to work their utmost. This paper contributes to the “doing gender” literature by adding an analysis of the textual gendering of ideal candidates for positions of expertise. Research limitations/implications The research materials do not expose all the issues pertinent to questions of the ideal gendered candidate. For instance, questions of ethnicity in relation to the definition of the ideal candidate cannot be studied with the data used for this study. Being an exploratory study, the results do not aim for generalizable results concerning job advertisements for expert positions. Originality/value This paper contributes to the “doing gender” and “gendering” literature by addressing the question of how and in what ways gender is defined and done for an expert positions prior the candidates are chosen to those jobs. It also offers new insights into the global construction of gendered expert jobs advertisements by addressing the topic with data from two countries. It further contributes to understanding the gendered shaping of expertise in the management literature.


1987 ◽  
Vol 67 (3) ◽  
pp. 329-332 ◽  
Author(s):  
Jarl Rosenørn ◽  
Vagn Eskesen ◽  
Kaare Schmidt ◽  
Frits Rønde

✓ In the 5-year period from 1978 to 1983, 1076 patients with ruptured intracranial aneurysms were admitted to the six neurosurgical departments in Denmark and were entered in a prospective consecutive study conducted by the Danish Aneurysm Study Group. The patients were followed with 3-month and 2-year examinations or to death. A total of 133 patients suffered at least one rebleed after their initial hemorrhage during their first stay in the neurosurgical department; these patients had a mortality rate of 80% compared to 41 % for patients without a rebleed (p < 0.0001). During the first 2 weeks after the initial insult, 102 rebleeds were registered. The daily rate of rebleeds during these 2 weeks, calculated using a life-table method, varied from 0.2% to 2.1%. The rebleed rate during the first 24 hours (Day 0) was 0.8%, and the maximum risk of rebleeding was observed between Day 4 and Day 9. Significantly fewer rebleeds were reported in patients with good clinical grades (Grades 1 to 3, Hunt Grades I and II) compared to those with poor clinical grades (Grades 4 to 9, Hunt Grades III to V: p < 0.001).


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Peter F. Wanke ◽  
Jorge J.J. Antunes ◽  
Vitor Y. Miano ◽  
Cassio L.P. do Couto ◽  
Franklin G. Mixon

PurposeThis study extends the educational institutions' performance and efficiency literature by examining Brazil's Federal Institute of Education, Science and Technology (FIEST), which consists of educational units throughout the country that span several levels of education.Design/methodology/approachThe authors build and analyze a covariance matrix consisting of both a group of efficiency measures and a group of performance indicators used by Brazil's Ministry of Education (BME). The values in the covariance matrix are maximized through application of the Technique for Order of Preference by Similarity to the Ideal Solution (TOPSIS), in which the weights of each variable are optimized in order to capture the direction of the relationship between the two sets of efficiency measures.FindingsAlthough the authors find that the collective efficiency of the educational units analyzed did not change during the period of study, the analysis reveals that government indicators of performance do not exhibit a strong relationship to the ideal solution efficiency measures used in this study.Originality/valueThis study extends the educational institution efficiency literature by examining Brazil's FIEST, which consists of 40 educational units throughout the country that spans several levels of education, from upper high school vocational courses to higher degrees.


Significance Large demonstrations on May 28 resulted in several deaths in Cali; President Ivan Duque deployed troops there the next day. Although that appears, temporarily, to have restored some order, talks between the government and protest leaders have stalled. Impacts The government still plans fiscal reform of some kind, but any proposals now risk inflaming unrest. Prolonged accusations of human rights abuses and impunity could damage Colombia’s international reputation. Fear of socialism and Venezuela’s struggles offer the government a powerful electoral weapon against the left.


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