Theodore Brown Rasmussen (1910–2002): epilepsy surgeon, scientist, and teacher

2003 ◽  
Vol 98 (3) ◽  
pp. 631-637 ◽  
Author(s):  
William Feindel

✓ Theodore Brown Rasmussen succeeded Wilder Penfield as director of the Montreal Neurological Institute (MNI) and held this post from 1960 to 1972. During his career, Rasmussen probably performed more operations for epilepsy than any other surgeon of his time; he became the foremost authority in this field. His meticulous follow-up analyses of the MNI seizure series provided substantial evidence for the success of surgery in the treatment of focal epilepsy. In addition, he made significant contributions to surgery of the pituitary gland for control of cancer, treatment of cerebral and spinal tumors, application of the intracarotid Amytal test for lateralization of speech and memory function, and characterization and treatment of epilepsy accompanied by chronic encephalitis, now referred to as Rasmussen syndrome. His painstaking attention to surgical details as well as his insistence on close monitoring of patient care and critical scrutiny of clinical results marked him as an outstanding teacher and role model for young neurosurgeons and neuroscientists.

2015 ◽  
Vol 7 (2) ◽  
pp. 140-160
Author(s):  
Swati Alok ◽  
Jayasree Raveendran ◽  
Anil Kumar Jha

Purpose – The purpose of this paper is to test the possible influence of the Ajzen’s theory of planned behaviour (TPB) in predicting conflict-handling intentions during process conflict episodes. Conflict situations are often to be managed with limited time in software projects. With this cue, the study is conducted in the context of software companies in India. Design/methodology/approach – Five variables of the TPB comprising attitude, injunctive subjective norms, descriptive subjective norm, conflict efficacy (CE) and structural assurance (SA) have been studied in relation to the two standard conflict-handling intentions: integrating and dominating approach. By developing vignettes on process conflict, salient beliefs towards process conflicts were elicited among software employees in India. A questionnaire using Ajzen’s guidelines was administered. Structural equation modelling for 150 responses is used for testing path suitability and significance. Findings – Employees with positive attitude towards conflict, high CE and high SA intend to integrate during process conflict. Employees with low efficacy and who are influenced by the action of their role model intend to dominate during process conflict. Research limitations/implications – The study is contextualized to Indian software employees. Findings should not be generalized until replicated in samples from other settings. Practical implications – This study will help practitioners in understanding the various elements that play role in a process conflict and also help in developing appropriate interventions in managing conflicts. This can be done by identifying and resolving issues related to unfavourable attitude and behavioural norms towards process conflicts. Originality/value – This study is the first to examine the efficacy of the TPB model in predicting multiple conflict-handling intentions among Indian software companies.


2003 ◽  
Vol 98 (3) ◽  
pp. 290-293 ◽  
Author(s):  
Koichi Sairyo ◽  
Shinsuke Katoh ◽  
Tadanori Sakamaki ◽  
Shinji Komatsubara ◽  
Natsuo Yasui

✓ The authors describe a new endoscopic technique to decompress lumbar nerve roots affected by spondylolysis. Short-term clinical outcome was evaluated. Surgery-related indications were: 1) radiculopathy without low-back pain; 2) no spinal instability demonstrated on dynamic radiographs; and 3) age older than 40 years. Seven patients, four men and three women, fulfilled these criteria and underwent endoscopic decompressive surgery. Their mean age was 60.9 years (range 42–70 years). No subluxation was present in four patients, whereas Meyerding Grade I slippage was demonstrated in three. For endoscopic decompression, a skin incision of 16 to 18 mm in length was made, and fenestration was performed to identify the affected nerve root. The proximal stump of the ragged edge of the spondylotic lesion, and the fibrocartilaginous mass compressing the nerve root were removed. The follow-up period ranged from 6 to 22 months (mean 11.7 months). Clinical outcome was evaluated using Gill criteria; in three patients the outcome was excellent, and in four it was good. This new endoscopic technique was useful in the decompression of nerve roots affected by spondylolysis, the technique was minimally invasive, and the clinical results were acceptable.


2004 ◽  
Vol 101 (6) ◽  
pp. 1045-1048 ◽  
Author(s):  
Katsuyoshi Miyashita ◽  
Yutaka Hayashi ◽  
Hironori Fujisawa ◽  
Mitsuhiro Hasegawa ◽  
Junkoh Yamashita

✓ Solitary fibrous tumor (SFT) is a benign and rare neoplasm. To date, only 37 patients with intracranial SFTs have been reported. Although a number of the tumors were recurrent and some later underwent malignant transformation, none of these lesions progressed to cerebrospinal fluid (CSF) dissemination. In this paper the authors report a case of SFT in which the lesion recurred several times and ultimately was disseminated by the CSF. The patient was a 63-year-old woman with multiple intracranial and spinal tumors. Fifteen years before this presentation, at the age of 48 she had been hospitalized for resection of a falcotentorial tumor. During the ensuing 15 years she underwent multiple surgeries and sessions of radiation therapy for recurrent lesions. The exclusive location of her tumors in the subarachnoid space at the end of this 15-year period indicate CSF dissemination of the tumor. The tumor that was resected when the patient was 48 years old and the latest resected lesion were analyzed by performing immunohistological CD34, epithelial membrane antigen, vimentin, S100 protein, and reticulin staining, and determining the MIB-1 labeling index (LI). Most of the results were identical, and both tumors were diagnosed as SFT according to a staining pattern that showed a strong and diffuse positive reaction for CD34. Nevertheless, the authors noted that the MIB-1 LI increased from less than 1% in the original tumor to 13% in the latest tumor. The increased proliferation of MIB-1 indicates that the malignant transformation could have occurred during tumor recurrence with CSF dissemination.


2004 ◽  
Vol 100 (4) ◽  
pp. 378-381 ◽  
Author(s):  
Mehmet Arazi ◽  
Onder Guney ◽  
Mustafa Ozdemir ◽  
Omer Uluoglu ◽  
Nuket Uzum

✓ The authors report the case of a 53-year-old woman with monostotic fibrous dysplasia of the thoracic spine. The patient presented with a 1-month history of pain in the thoracic spinal region. En bloc resection of the lesion was successfully performed via a transthoracic approach, and a histopathological examination confirmed the diagnosis of fibrous dysplasia. At 24-month follow-up examination, pain and vertebral instability were absent. The findings in this case illustrate that, although very rare, monostotic fibrous dysplasia of the thoracic spine should be considered in the differential diagnosis of spinal tumors. Although a consensus for management of this disease has not been achieved, the authors recommend radical removal of all involved bone as well as internal fixation or bone graft—assisted fusion to achieve long-term stabilization.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Komal Chopra

Purpose The purpose of the study was to apply Maslow’s hierarchy of needs to understand consumer motivation for preventive health care in India using content analysis. Design/methodology/approach Content analysis approach which is a qualitative-based approach was adopted. The responses were collected through semi-structured interviews using purposeful sampling method, and the responses were analyzed using content analysis approach. Sub themes and main themes were derived from the data which related to concepts in Maslow’s theory. Findings The results indicate the following: healthy food, healthy diet and health supplements are the basic need; sustainability of health and fitness and health security relate to safety and security need; feeling of pride in being fit, being a role model of fitness for others and influence of electronic media relate to social and self-esteem need; freedom from disease and peace of mind fulfill the need for self-actualization. Research limitations/implications To strengthen the external validity, a mix of alternate research methodologies adopting qualitative and quantitative approach need to be adopted. Practical implications This study will help to better understand motivation for preventive health care. It will enable health-care companies to design health-care marketing programs based on Maslow’s theory to motivate individuals to purchase health products. The public health-care departments can issue guidelines based on Maslow’s theory to motivate citizens toward preventive health care. Originality/value Maslow’s theory was applied in the context of preventive health care.


2005 ◽  
Vol 102 ◽  
pp. 234-240 ◽  
Author(s):  
Chihiro Ohye ◽  
Tohru Shibazaki ◽  
Sumito Sato

Object.The authors studied the effects of gamma knife thalamotomy (GKT) on Parkinson disease-related tremor and essential tremor before and after reloading of radioactive cobalt.Methods.Based on experience in stereotactic thalamotomy aided by depth microrecording, the target was located at the lateral border of the thalamic ventralis intermedius nucleus (VIM). For more precise targeting, the percentage representation of the thalamic VIM in relation to the entire thalamic length is useful. The location of the target was determined on magnetic resonance (MR) imaging and computerized tomography scanning. A maximum dose of 130 Gy was delivered to the target by using a single isocenter with the 4-mm collimator. In more recent cases, a systematic follow-up examination was performed at 3, 6, 12, 18, and 24 months after GKT.Since 1993, the authors have treated 70 patients with PD. Throughout the series the same dosimetric technique has been used. The course after GKT was compared between the 25 cases with PD treated before reloading and the 35 cases treated after reloading. In the majority (80–85%) treated after reloading, tremor and rigidity were reduced around 6 months after GKT. In the cases treated before reloading this effect took approximately 1 year. The thalamic reaction on MR imaging showed the same two lesion types in both series: a restricted and a diffuse. After reloading the restricted lesion was more frequent and the lesion volume was smaller.Conclusions.The shorter delay in clinical improvement and smaller lesion size may be related to an increased radiation dose.


2018 ◽  
Vol 21 (1) ◽  
pp. 2-19 ◽  
Author(s):  
Ingela Sölvell

Purpose The task of leading innovation is predominantly pictured as a supportive role vis-à-vis employees. Motivation is a crucial aspect of this task. To better understand the practice of this change-oriented leadership task, the actual behavior and activities of managers are investigated. The purpose of this paper is to reflect through practice and self-reports how this leadership challenge is executed. Design/methodology/approach In this longitudinal multi-method investigation, the service innovation literature constitutes the main theoretical framework. The investigation draws additionally on leadership literature about how to understand leadership through practice. The methodological design facilitated the drawing of causal inferences in the dynamics of service innovation. Findings The investigation enhances our understanding of managers’ particular context of innovation, and particularly the initiation context. It provides empirically grounded descriptions of what managers identify as potential opportunities, and how they take them further in the ideation stage. The results develop the suggestion that leadership roles, and specifically change-oriented roles, are not restricted to initiating or enabling activities related to the employees. Instead the much downplayed leadership role, i.e. the active practice-based involvement in innovation, is theorized as a role that is continuously activated, but tends to be set aside for contingency reasons. Research limitations/implications Further research is needed to assess the importance of managers’ involvement in the practice of innovation, both through systematic mapping of ideas on a larger scale, and through the employee perspective. This paper provides useful insights on managers’ cognition and involvement in innovation for further investigations of innovation management. Practical implications The results provide awareness for managers regarding their diverse leadership roles related to innovation. First, the study embraces heterogeneous ideas that are useful to evaluate and constitute role-modeling. Second, it highlights how managers’ execution of innovation creates awareness about the challenges involved. Finally, but maybe most important, the results alert managers of the discontinuity, even in strategically anchored intentional innovation. Social implications In a changing innovation landscape, individual firms need to draw on other firms to achieve their innovation strategies. In pursuit of this goal, this paper enhances the understanding of the role-modeling leadership task. It is a novel way of guiding individuals that are exposed to new and uncertain innovation contexts, and rethinking how innovation eventually can be achieved. Originality/value While earlier research has identified the multifaceted leadership behavior to support innovation, this paper outlines the contextual conditions and the practice of executing the suggested powerful role of being a role-model for others.


2017 ◽  
Vol 32 (6) ◽  
pp. 430-444 ◽  
Author(s):  
Jana Deprez ◽  
Martin Euwema

Purpose The purpose of this paper is to examine the leadership expectations of young employees in intrapreneurial jobs. Design/methodology/approach Group interviews were conducted with 42 young intrapreneurs and 13 leaders of a Dutch ICT consultancy firm. Data were coded and analyzed using qualitative data analysis software. Findings The authors find ten different expectations on leadership. Young intrapreneurs expect to have a personal connection, sufficient feedback, ample freedom, and trust, clear directions when asked and a leader who is a role model. Research limitations/implications This qualitative study was conducted in one organization. It however sheds a first light on expectations of employees with intrapreneurial job requirements. Practical implications In order to motivate and guide young intrapreneurs, direct supervisors should aim not to breach expectations. By getting to know their employees on a personal basis, taking the time to coach them in their career goals, showing intrapreneurship themselves, focusing on an open relationship, and providing a challenging and dynamic environment, direct supervisors build a strong and cooperative relationship. Originality/value This paper is one of the first to look at the relationship between direct supervisors and intrapreneurial employees. Doing so, it also expands the current knowledge of Implicit Leadership Theory by exploring expectations of young intrapreneurs and adds to the full-range leadership theory by showing the importance of investigating its subdimensions.


2020 ◽  
Vol 15 (4) ◽  
pp. 189-193
Author(s):  
Kousei Miura ◽  
Masao Koda ◽  
Tetsuya Abe ◽  
Mamoru Kono ◽  
Fumihiko Eto ◽  
...  

2007 ◽  
Vol 30 (12) ◽  
pp. 942-954 ◽  
Author(s):  
Pooran Wynarczyk

PurposeThis paper aims to investigate the “gender management gap” in the scientific labour market in the North East of England. The paper seeks to compare and contrast employment, ownership, management structure and capacity between men and women in the Science, Engineering and Technology (SET) sector.Design/methodology/approachThe empirical investigation is based on a survey of 60 SET‐based small and medium‐sized enterprises (SMEs), operating in the North East of England.FindingsThe results show that women are particularly under‐represented in managerial and senior positions of scientific nature in the private sector in the North East of England. The “glass ceiling” effect appears to be widespread.Research limitations/implicationsThere are very limited empirical data and research on the nature and level of participation of women in the scientific managerial labour market at firm level in the UK. There is a need for more rigorous research at firm and regional levels to examine the cumulative effects of underlying factors that prevent women from progression, beyond the “glass ceiling”, in the scientific labour market.Practical implicationsThis paper builds upon a research project funded by the ESRC Science in Society Programme. The key findings have resulted in a subsequent award from the Economic and Social Research Council (ESRC) Impact Grants to establish the “North East Role Model Platform for Innovative Women” in the light of the Science City Initiative.Originality/valueThe “gender management gap” in the scientific labour market in the North East of England has not, empirically, been investigated before and appears to be a highly neglected area of public policy and research.


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