51 research outputs found
Blend IT & Share IT: Advies van de werkgroep Onderwijsvernieuwing / Blended Learning
Get PDFOnderwijsvernieuwing en blended learning zijn speerpunten waar de UvA op in zet. Een van de kerndoelstellingen op het gebied van onderwijs is het verwerken van evidence-based ICT toepassingen in het onderwijsbeleid.In december 2015 is het eindrapport Blend it/Share it van de werkgroep Onderwijsvernieuwing / Blended Learning uitgekomen. De UvA heeft in dit kader twee vice-provost for innovation in teaching and learning benoemd. Dit zijn prof. Dr. Peter van Baalen en dr. Etienne Verheijck geworden. De definitie van blended learning voor de UvA is: learning activities that involve a systematic and meaningful combination of of co-present (face-to-face / offline) interactions and technology-mediated (online) interactions between students, teachers and learning resources from a strond educational perspective (adapted from Bliuc et al, 2007).De Stuurgroep Onderwijsvernieuwing houdt zich o.a. bezig met het opzetten van een Centre for Innovation in Learning & Teaching en het organiseren van seminars. De leden van de stuurgroep zijn: Peter van Baalen (voorzitter, FEB), Etienne Verheijck (AMC), Annemarie Zand Scholten (FEB), Andy Pimentel (FNWI), Arthur Salomons (FdR), Martine van Selm (FMG), Yolande Spoelder (FGw), Tjapko van Noort (CSR), Manouk Schippers (CSR) en Janine Smit (secretaris, AcZ)
Blend IT & Share IT:Advies van de werkgroep Onderwijsvernieuwing / Blended Learning
Get PDFOnderwijsvernieuwing en blended learning zijn speerpunten waar de UvA op in zet. Een van de kerndoelstellingen op het gebied van onderwijs is het verwerken van evidence-based ICT toepassingen in het onderwijsbeleid.In december 2015 is het eindrapport Blend it/Share it van de werkgroep Onderwijsvernieuwing / Blended Learning uitgekomen. De UvA heeft in dit kader twee vice-provost for innovation in teaching and learning benoemd. Dit zijn prof. Dr. Peter van Baalen en dr. Etienne Verheijck geworden. De definitie van blended learning voor de UvA is: learning activities that involve a systematic and meaningful combination of of co-present (face-to-face / offline) interactions and technology-mediated (online) interactions between students, teachers and learning resources from a strond educational perspective (adapted from Bliuc et al, 2007).De Stuurgroep Onderwijsvernieuwing houdt zich o.a. bezig met het opzetten van een Centre for Innovation in Learning & Teaching en het organiseren van seminars. De leden van de stuurgroep zijn: Peter van Baalen (voorzitter, FEB), Etienne Verheijck (AMC), Annemarie Zand Scholten (FEB), Andy Pimentel (FNWI), Arthur Salomons (FdR), Martine van Selm (FMG), Yolande Spoelder (FGw), Tjapko van Noort (CSR), Manouk Schippers (CSR) en Janine Smit (secretaris, AcZ)
The scapular neck fracture : biomechanical, clinical and surgical aspects
No full textAfter a short introduction to the topics of this thesis, in chapter 2 we described the
functional and radiological results of a retrospective study in patients with an ipsilateral scapular neck and clavicular shaft fracture (floating shoulder). Forty-six patients were treated between 1991 and 1996. Thirty-five patients remained available for analysis (follow-up: 35 months). Thirty-one patients had been initially treated non-operatively and four operatively. Three patients underwent secondary surgery. Both operatively as non-operatively treated patients had a fair to good functional outcome (Constant score 71 versus 76). A correlation was found between radiological result (angular malunion of the neck) and functional result.
Our study results suggest that conservative treatment is preferred in patients with an ipsilateral clavicular and scapular neck fracture, in absence of angular malunion.
Fair to poor functional results are reported in literature on patients with a displaced
scapular neck fracture. In chapter 3 occurrence of malunion was analysed in conservatively treated patients with a scapular neck fracture in relation with the clinical outcome. In the period 1991 and 2001, 24 patients with a locally isolated scapular neck fracture were treated. Thirteen patients were available (follow-up: 5.5 years). In four patients a translational displacement > 1 cm was found, but no significant angular displacement. The mean Constant score of all 13 patients was 90. This study suggests that there is no correlation between occurrence of translational displacement of the scapular neck and a poor functional result.
In chapter 4 a biomechanical study was described .The aim was to identify a mechanical cause for loss of shoulder function in case of a malunited scapular neck. A 3D computer model was used to analyse shoulder biomechanics. Abduction of the humerus and loading of a 90º abducted humerus were simulated with presence and absence of caudal displacement of the glenoid. The patterns of muscle activation were studied, with attention to the rotator cuff muscles. A difference in muscle activation was found between the control and malunion cases. The rotator cuff muscles were significantly shortened in the fracture cases and their generated forces were strongly reduced when the humerus was loaded at 90º abduction. From the current study it appears that loss of the rotator cuff function can be compensated by other muscles with larger moment arms.
In chapter 5, the current status of the anatomical, biomechanical and clinical aspects
of a floating shoulder is reviewed.
It is suggested in literature that in patients with a floating shoulder, O.R.I.F. of the
clavicular shaft fracture will reduce the displaced scapular neck fracture and prevent malunion. In chapter 6 is explained-by presentation of three case reports- that this generally accepted theory is not correct.
In chapter 7 an anatomical study is presented in which the best position of the arm
for achieving an adequate exposure to the scapular neck and the safest distance of
both axillary and suprascapular nerve to the glenoid is determined. Thirteen fresh-frozen shoulders were dissected through a posterior surgical approach.. The distance of neurovascular structures to the glenoid was measured with the arm in different positions. A significant increase in axillary nerve-glenoid distance by abducting the arm was observed in all cases. It was concluded that abduction of the arm facilitates the exposure to the scapular neck. Abduction up to 90º particularly in combination with external rotation of the arm increases the "safe zone" between the branch of the axillary nerve innervating the teres minor muscle and the glenoid.
The posterior surgical approach according to Brodsky is elucidated in chapter 8
by presentation of a patient who was treated by O.R.I.F. of a displaced glenoid
fracture
A manifesto for the study of ancient Mediterranean maritime networks
No full textIn this one-off, extended Project Gallery article, the participants of a recent workshop jointly present a manifesto for the study of ancient Mediterranean maritime connectivity. Reviewing the advantages and perils of network modelling, they advance conceptual and methodological frameworks for the productive study of seaborne connectivity. They show how progressive research methods can overcome some of the problems encountered when working with uneven datasets spanning large geographical regions and long periods of time. The manifesto suggests research directions that could better inform our interpretations of human connections, both within and beyond the Mediterranean
Short-term results of total shoulder arthroplasty for ochronotic arthritis
No full textAlkaptonuria is a rare inherited autosomal recessive disorder resulting in large joint osteoarthritis with black discoloration of the cartilage. The glenohumeral is the third most affected joint. Two cases of ochronotic shoulder arthropathy with three shoulder joint replacements are presented. Stemless shoulder arthroplasty was implanted with moderate to good results up to 2 years follow-up regarding pain and range of motion
Humeral retroversion (Complexity of assigning reference axes in 3d and its influence on measurement): A technical note
No full textBackground: Humeral retroversion (RV) is important to the study of shoulder function and reconstruction. This study tests the hypothesis that clinically obtained computer tomography (CT) measurements for humeral RV (off-axis measurements) differ from those obtained after reformatting the image slice orientation so that the humeral shaft is perpendicular to the gantry (coaxial measurements) and explores deviations from true RV. Materials and methods: A custom-built application created in Mathematica was used to explore the effect of altering the humeral orientation on slice angle acquisition by 3D imaging technologies, on the perceived angle of RV from the 2D-projection of the reference axes. The application allows for control of humeral axis orientation relative to image slice (3D) or plain of projection (2D) and humeral rotation. The effect of rotating a virtual model of one humerus around its own axis and in discrete anatomical directions on the measured RV angle was assessed. Results: The coaxial measurement of humeral RV (31.2°) differed from off-axis measurement, with a maximum difference in measured RV of 50° in 45° of extension. The typical position of the humerus in a CT scan resulted in a difference in RV measurement up to 22°. Explorations of deviation led to the following outcomes, as divided by anatomic direction. Extension and abduction led to an underestimation, and flexion and adduction led to an overestimation of the RV-angle. Conclusion: Measurements must be done consistently about the position and orientation of the humerus. Deviation in the humeral alignment of as little as 10° can distort the measurement of version up to 15°
De herkenning van psychische problemen met religieuze inhoud door pastores: een vignetstudie
No full textClergy members (CMs) often attend to the religious needs of those with psychological or psychiatric disorders. There are indications in the literature that CMs feel they have not been adequately trained to recognize these disorders. AIM To gain insight into the extent to which CMs recognize psychiatric symptoms. METHOD CMs regionally recruited in the Southwest Netherlands (Roman Catholics, strictly Protestants, moderate Protestants and Evangelicals, n = 143) and a control group of mental health professionals (MHPs) (n = 73) assess four vignettes on psychological problems with religious content, two describing psychiatric cases (a psychotic state and a psychotic depression / melancholy state) and two describing non-psychiatric cases (a mystical experience and a mourning situation with a religious dilemma). For each vignette, the respondents score the usefulness of psychiatric medication, the desirability of assistance from the mental health care, the seriousness of the case and the assumed religious or mystical etiology. RESULTS Compared to MHPs, CMs recognize psychiatric problems to varying extents. Evangelical CMs recognize them the least accurately and strict Protestant CMs the best. Evangelical and strict Protestant CMs are more apt to interpret non-psychiatric states as pathological. CONCLUSION The findings in this study emphasize the importance of collaboration between MHPs and CMs and the importance of consultation
Traumatic anterior tibiofemoral dislocation of mobile-bearing total knee arthroplasty:Two cases
Get PDFBackground: Anterior tibiofemoral dislocation is a severe complication of a total knee arthroplasty. It is rare, and it is distinctly different from bearing spinout. Most tibiofemoral dislocations are posterior. Anterior dislocation has previously been described in various prosthesis designs, but not in mobile-bearing prostheses. We present two cases and provide recommendations for the management of this rare and severe injury. Case description: Two cases of complete anterior tibiofemoral dislocation were brought on by trauma, fifteen and eight years after initial implantation of mobile-bearing total knee arthroplasties in 71-year-old and 73-year-old female patients. One was managed with closed reduction and made a full recovery. In the other, closed reduction failed, open reduction was performed, and there was a need for revision surgery for instability after her initial recovery. There were no neurovascular complications. Follow-up was 23 and 14 months respectively. Conclusion: Anterior tibiofemoral dislocation is a severe injury with a risk of concomitant complications. Early management should include prompt reduction, serial neurovascular exams and CT angiography for all cases. Late management should include assessment of joint stability.</p
Recognition of psychopathology with religious content by clergy members: a case vignette study
No full textClergy members (CMs) frequently offer support and counselling for people with mental health problems. The current study aims to obtain insight into the ability among CMs to recognise psychopathology and need for psychiatric treatment. A random sample of CMs (N ¼ 143) and a control sample of mental health professionals (MHPs, N ¼ 73), were compared as to their evaluations of four vignettes. CMs considered the psychiatric states to be related to religious or spiritual problems to a similar degree as they did for the non-psychiatric states. Sensitivity of CMs with regard to the need of psychiatric care for the psychiatric states was modest (66%) and differed significantly from MHPs (96%). Specificity of the CMs was 89%, which was significantly lower than the MHPs (97%). The CMs did recognise psychopathology with religious content but clearly to a lower extent than MHPs. Requests by CMs for education about recognising psychopathology may be considered as justified
Recognition of psychopathology with religious content by clergy members: a case vignette study
No full text- …
