19 results
Clinical predictors of kynurenine pathway aberrations in schizophrenia and bipolar disorder
- K. Skorobogatov, M. Leboyer, M. Foiselle, M. Morrens, L. De Picker
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- Journal:
- European Psychiatry / Volume 65 / Issue S1 / June 2022
- Published online by Cambridge University Press:
- 01 September 2022, p. S365
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Introduction
Schizophrenia and bipolar disorder are severe mental illnesses that are known to have a considerable overlap in underlying pathophysiological mechanisms. More specifically, disturbances in the kynurenine pathway have been hypothesized as processes bridging altered immune responses and clinical manifestations of these illnesses.
ObjectivesThe aim of this study was to investigate the abnormalities in serum kynurenine metabolites in schizophrenic and bipolar patients and the impact of clinical factors.
MethodsFour patient groups were included in the current study: 1) Acute bipolar inpatients (n=205); 2) stable bipolar outpatients (n=116); 3) acute schizophrenia inpatients (n=111) and 4) stable schizophrenia outpatients (n=75); and one healthy control group (n=185). Clinical symptoms were established using symptom severity scales. The quantitative determination of serum kynurenine metabolites was performed using LC-MS/MS. General linear model and multivariate linear regression analyses were used to perform the statistical analysis with JMP Pro 15.
ResultsIn line with previous research, the results indicate that serum kynurenine metabolites are disturbed in schizophrenic and bipolar patients compared to healthy controls. Whereas no differences were observed between schizophrenia and bipolar disorder, illness state and duration of illness clearly impacted kynurenine metabolite levels. Acutely ill patients had significantly lower levels compared to stable patients, which seemed to be driven by psychotic symptoms.
ConclusionsTo conclude, the results confirm the involvement of the kynurenine pathway in the pathophysiology of schizophrenia and bipolar disorder by lowered peripheral kynurenine metabolite level. In addition, an important role of acute psychotic symptoms and longer illness duration on these metabolite aberrances is demonstrated.
DisclosureNo significant relationships.
Engineering psychiatric education 2.0 in post-pandemic europe
- L. De Picker
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- European Psychiatry / Volume 64 / Issue S1 / April 2021
- Published online by Cambridge University Press:
- 13 August 2021, pp. S61-S62
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In the world of medical education, there is generally a lot of emphasis on following procedure and tradition, and a reluctance to challenge the norm. It takes insight and courage to question traditional approaches and paradigms: why are psychiatric training programs done the way that they are? Reverse engineering involves taking something apart and analysing its workings to figure out how it does what it does and how it can be improved. In education, reverse engineering implies one determines learning outcomes upfront and then works back from them. Applied to postgraduate psychiatric training, it requires us to determine the basic principles or core concepts resulting in the successful formation of a well-rounded psychiatrist. In times of crisis there usually is more leeway to challenge the status-quo – hence the saying “never waste a good crisis”. Indeed, if the COVID-19 crisis has taught us anything, it is that education should be meeting learners where their attention is at, and that any healthcare organisation can be transformed within weeks when given the right incentives. In this workshop, Dr. De Picker will reflect on how post-COVID European psychiatric training can reinvent itself to address long-standing concerns and unmet needs. Innovative approaches will be needed to start shaping the psychiatrists of the future.
DisclosureNo significant relationships.
To diagnose or not to diagnose your BPD patient
- L. De Picker
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- European Psychiatry / Volume 64 / Issue S1 / April 2021
- Published online by Cambridge University Press:
- 13 August 2021, p. S55
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Clinicians working in every field of psychiatry will likely encounter patients with borderline personality disorder (BPD) on a regular basis. Nevertheless, diagnostic assessment and disclosure in patients suspected to suffer from BPD can be difficult and even uncomfortable to many clinicians. In a survey among psychiatrists, 57% indicated they had failed to disclose a diagnosis of BPD at some point in their careers, citing diagnostic uncertainty and concerns about stigma as key issues.1This workshop will engage the audience in an intensive discussion of when and how to disclose a suspected diagnosis of BPD to a patient, and how to involve the patient in the diagnostic process. Dr. De Picker will demonstrate how BPD diagnostic disclosure can become a key intervention in every psychiatric setting by using a two-step process. The first step involves a review of the DSM-5 diagnostic criteria together with the patient. This is always followed by a narrative explanation using either the interpersonal hypersensitivity model or emotional vulnerability model as trait factor. With these two steps, diagnostic disclosure creates both an important validating experience for the patient and a not to be missed opportunity for psycho-education about the heritability, prognosis and treatability of borderline personality disorder which installs hope, trust and confidence. References: 1. Sisti D, Segal AG, Siegel AM, Johnson R, Gunderson J. Diagnosing, disclosing, and documenting borderline personality disorder: a survey of psychiatrists’ practices. J Pers Disord 2016; 30: 848–56.
DisclosureDr. De Picker reports grants from University Psychiatric Centre Duffel, Johnson & Johnson Belgium and Boehringer-Ingelheim, outside the submitted work.
906 – Hyponatremia And Antidepressants: Are They Worth Their Salt? a Class-per-class Review Of The Literature
- L. De Picker, F. Van Den Eede, B.G.C. Sabbe
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- Journal:
- European Psychiatry / Volume 28 / Issue S1 / 2013
- Published online by Cambridge University Press:
- 15 April 2020, 28-E355
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Introduction
Hyponatremia due to antidepressant-induced SIADH can cause significant morbidity and serious complications. It is commonly associated with SSRIs, but the frequency and class-specificity are unclear.
ObjectivesTo determine the relationship between hyponatremia and antidepressants, defining incidence and odds ratios for antidepressant classes, along with patient risk factors.
MethodsA review of the literature was performed in Web of Science and Pubmed until April 2012, using combinations of search strings “antidepressants” and antidepressant class and generic drug names with “hyponatr(a)emia”, “SIADH” or “inappropriate antidiuretic hormone secretion”.
Results19 effect studies and over 50 case reports were considered, the majority concerning SSRIs. Variation in study design, population and cut-off values caused divergence of hyponatremia incidences of 0.06-40% for SSRIs and 0.08-70% for venlafaxine. Incidence numbers for mirtazapine and TCAs were tenfold lower. Odds ratios for SSRIs (1.5 -4.0) were consistently higher than for TCAs (1.1-1.9). The risk associated with MAO-inhibitors, reboxetine and bupropion could not be established due to insufficient information. Patient risk factors included older age (OR 6.3) and concommitant use of (thiazide) diuretics (OR 11.2-13.5).
ConclusionHyponatremia is an underdiagnosed and potentially dangerous side-effect of antidepressants and this risk is not exclusive to SSRIs. Current evidence suggests a relatively high risk for hyponatremia with the use of SSRIs or venlafaxine, especially combined with patient risk factors, in which cases clinicians should actively screen for this complication. Mirtazapine and TCAs entail a moderate risk and can be considered as alternative treatment for patients with increased risk or history of hyponatremia.
Preserved SDST Learning in Schizophrenia
- C. Cornelis, L. De Picker, W. Hulstijn, G. Dumont, M. Timmers, L. Janssens, B. Sabbe, M. Morrens
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- European Psychiatry / Volume 30 / Issue S1 / March 2015
- Published online by Cambridge University Press:
- 15 April 2020, p. 1
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How to Perform Translocator Protein PET-CT Scanning for Microglial Activation in Schizophrenia Patients.
- L. De Picker, S. Staelens, S. Ceyssens, J. Verhaeghe, S. Deleye, S. Stroobants, B. Sabbe, M. Morrens
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- European Psychiatry / Volume 30 / Issue S1 / March 2015
- Published online by Cambridge University Press:
- 15 April 2020, p. 1
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Introduction
Activated microglia express translocator protein (TSPO) on the outer mitochondrial membrane. PET ligands targeting TSPO allow in vivo non-invasive visualization and quantification of neuroinflammation. Whereas inflammation in schizophrenia was previously studied using 11C-PK11195, 18F-PBR111 is a novel second-generation tracer, with high specific TSPO binding and longer half-life.
ObjectiveTo establish a protocol for 18F-PBR111 TSPO PET in schizophrenia.
MethodsA pilot study on a Siemens Biograph mCT PET-scanner in healthy controls and schizophrenia patients (n=9).
ResultsSubjects underwent a 90-minute dynamic brain PET-CT, following i.v. bolus injection of 214±13 MBq 18F-PBR111. An arterial input function was measured using continuous blood sampling (Twilite, Switzerland) with discrete samples for metabolite analysis. The metabolite corrected plasma input function (IPF) was calculated from the whole blood input function, individual plasma to whole blood and parent fraction data as determined by a SEP-PAK procedure. Dynamic PET data were reconstructed and a post-reconstruction motion correction was applied. Regional tissue time activity curves (TACs) were extracted from the PET images for regions of interest determined from individual MRI images. Total volume of distribution (VT) was then calculated from fitting a reversible two-tissue compartmental model to the measured TACs using the individual IPF. Prior genotyping for TSPO receptor polymorphism (rs6971) allowed to exclude low-affinity binders (estimated 10% of European population). The procedure was well tolerated.
ConclusionsWe established a protocol for 18F-PBR111 TSPO PET in healthy subjects and schizophrenia patients, thereby providing useful information for others considering 18F-PBR111 TSPO PET imaging for evaluation of neuroinflammation.
EPA-0445 – Procedural Learning in Stable Schizophrenia Patients Compared to Healthy Young and Elderly Controls in Two Variations of the Rotary Pursuit.
- L. De Picker, C. Quisenaerts, W. Hulstijn, G. Dumont, M. Morrens, B.G.C. Sabbe
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- Journal:
- European Psychiatry / Volume 29 / Issue S1 / 2014
- Published online by Cambridge University Press:
- 15 April 2020, p. 1
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Objective:
To compare sensorimotor learning in stable schizophrenia patients, healthy age- and sex-matched controls and elderly controls in two variations of the classic Rotary Pursuit.
Method:In Circle Pursuit (true motor learning), a target circle, rotating along a predictable circular path on the computer screen, must be followed by manipulating the pen on the writing tablet. The task consists of two trials of six rotations each, with target speed gradually increasing. In the eight-trial Figure Pursuit (motor and sequence learning), subjects learn to draw a complex figure by following a target circle that moves at a fixed speed along an invisible trajectory around several goals. Tasks were administered thrice (interval 2-7days) to 32 stable schizophrenia patients (S), 16 healthy age- and sex-matched controls (Y) and 16 elderly controls (>65y; E) and recorded with a digitizing tablet and pressuresensitive pen (200Hz frequency; 0.2mm spatial accuracy). Learning speed was assessed in a repeated-measures ANOVA of outcome variable accuracy (% of time cursor is within target).
Results:All groups exhibited learning effects and significant group differences in accuracy existed (E<S<Y, p<0.01) in both tasks. However, within-subject analyses revealed a significant effect of group*trial number (p<0.01) and group*session (p0.02) only in Figure Pursuit, indicating a significant difference in learning between groups in this task.
Conclusion:In our Pursuit continuous sensorimotor task, group differences exist between schizophrenia patients and elderly and young healthy controls. When a sequence learning component is added (Figure Pursuit), there is also significant difference in the amount of learning.
EPA-0759 - Multi-immunostaining for Microglial Activation in Schizophrenia
- L. De Picker, M. Morrens, B.G.C. Sabbe, S. Gentleman, J.A.R. Nicoll, D. Boche
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- European Psychiatry / Volume 29 / Issue S1 / 2014
- Published online by Cambridge University Press:
- 15 April 2020, p. 1
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Background:
Activation of microglial cells is currently explored in schizophrenia pathophysiology. Post-mortem immunohistochemistry remains the most accurate method to investigate microglial morphology and function, since high microglial plasticity limits extrapolation of in vitro and animal research results to the human brain.
Method:To investigate microglial morphology and activation patterns, we performed immunohistochemistry with specific microglial markers: Iba1 (marker of resting and activated microglia), CD68 (marker of microglial lysosomes, indicative of phagocytic microglia) and CD64 (FcγRI, binds IgG) on formalin fixed paraffin embedded brain tissue from the Corsellis Collection (BRAIN UK), in 15 schizophrenia cases and 15 nonneurological controls. Immunostaining was quantified by image capture and analysis (Image J, NIH, US) to provide a measure of protein load. We also reviewed existing literature on microglial immunostaining in schizophrenia using Pubmed.
Results:Few studies have examined post-mortem microglia in schizophrenia, mostly with HLA-DP/DQ/DR markers. Although frequently studied in neurological disorders Iba1, but also CD64 were never previously investigated in schizophrenia patients. Two studies explored CD68, but results were misinterpreted for resting state tissue macrophages. Our pilot study shows Iba1, CD68 and CD64 can detect microglial cells in schizophrenia brain tissue, but considerable heterogeneity exists both in patients and controls, probably due to confounding by clinical variables, e.g. age and cause of death.
Conclusion:Future research needs careful selection of cases and controls to minimize heterogeneity due to confounding clinical variables. Highly specific microglial markers such as Iba1, CD64 and CD68 are very useful and ought to be introduced into schizophrenia research.
Psychiatric Trainees: Swiss Penknives for a Cheap Price?
- E. Sönmez, L. De Picker, H. Ryland, M. Pinto Da Costa, T. Gargot, I. Viltrakyte, R. Grassl
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- European Psychiatry / Volume 41 / Issue S1 / April 2017
- Published online by Cambridge University Press:
- 23 March 2020, p. S301
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Introduction
Global trends in the nature of working conditions pose significant threats to the training of medical professionals, as a result of cuts in educational grants and the salaries of professionals in training. Psychiatric trainees are not exempt from these changes.
ObjectivesTo determine the current working conditions of psychiatric trainees and how they impact on their experience of training.
MethodsA semi-structured survey was distributed to all members of the European forum of psychiatric trainees. Responses were collected online from 34 participating countries. The respondents were representatives of national trainee associations. Data collection was completed between May and July 2016.
ResultsRespondents reported that the most important issues affecting postgraduate training were firstly working conditions, then salary, psychotherapy training and supervision, respectively. The average official mandatory working hours for a trainee, including on call duty was reported to be on average 40.16 (± 10.14 hours per week). In reality, the time that trainees report working is more than 20% higher than official working hours (on average 49.08 ± 15 per week). There is an officially recognized minimum vacation period of 20 days in almost all countries, ranging up to a maximum of 40 days (mean: 26.93 ± 4.97, per year). Salaries demonstrate an even greater variation, ranging from 100 Euros (as in the case of Moldova), up to over 5000 Euros (as in the case of Germany or Switzerland) per month.
ConclusionPsychiatric trainees often work longer than the officially recognized hours and their income varies considerably between countries, which have been identified as the two biggest challenges trainees face.
Disclosure of interestThe authors have not supplied their declaration of competing interest.
Psychiatric Training in Perinatal Mental Health Across European Countries
- M. Casanova Dias, E. Sonmez, F. Baessler, A. Kanellopoulos, S. Naughton, M. Pinto Da Costa, H. Ryland, L. De Picker
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- European Psychiatry / Volume 41 / Issue S1 / April 2017
- Published online by Cambridge University Press:
- 23 March 2020, p. S65
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Introduction
The aim of postgraduate psychiatric training is to prepare psychiatrists to practice independently. The quality of care provided will depend on the training they received. Pregnancy and childbirth (usually called the perinatal period) are a high-risk period for many women with psychiatric problems. An illness episode at that time can have a devastating effect on women and the whole family, including the child's development.
ObjectivesTo understand how perinatal mental health training is organized within Europe and how it fits in the training curricula.
MethodsThe European Federation of Psychiatric Trainees conducts an annual survey of all member country organizations. We have asked respondents if they received training in perinatal psychiatry, whether that was optional or mandatory and what was its duration. Where training in perinatal psychiatry was not available we asked if they felt it should be.
ResultsData will be presented from the 35 countries that responded in the 2016 survey. Six countries reported that training in perinatal mental health is available. But it is mandatory in only one, with the others offering a mix of theoretical and practical optional training. Of the 29 countries that do not offer perinatal psychiatry training, the majority reported it should be offered and mandatory.
ConclusionThere is a gap in the expectations of psychiatrists treating women in pregnancy and after birth, and a widespread lack of training for them to be able to do so effectively.
Disclosure of interestThe authors have not supplied their declaration of competing interest.
To which countries do European psychiatric trainees want to move to and why?
- M. Pinto da Costa, A. Giurgiuca, K. Holmes, E. Biskup, T. Mogren, S. Tomori, O. Kilic, V. Banjac, R. Molina-Ruiz, C. Palumbo, D. Frydecka, J. Kaaja, E. El-Higaya, A. Kanellopoulos, B.H. Amit, D. Madissoon, E. Andreou, I. Uleviciute-Belena, I. Rakos, J. Dragasek, K. Feffer, M. Farrugia, M. Mitkovic-Voncina, T. Gargot, F. Baessler, M. Pantovic-Stefanovic, L. De Picker
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- European Psychiatry / Volume 45 / September 2017
- Published online by Cambridge University Press:
- 23 March 2020, pp. 174-181
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Background:
There is a shortage of psychiatrists worldwide. Within Europe, psychiatric trainees can move between countries, which increases the problem in some countries and alleviates it in others. However, little is known about the reasons psychiatric trainees move to another country.
Methods:Survey of psychiatric trainees in 33 European countries, exploring how frequently psychiatric trainees have migrated or want to migrate, their reasons to stay and leave the country, and the countries where they come from and where they move to. A 61-item self-report questionnaire was developed, covering questions about their demographics, experiences of short-term mobility (from 3 months up to 1 year), experiences of long-term migration (of more than 1 year) and their attitudes towards migration.
Results:A total of 2281 psychiatric trainees in Europe participated in the survey, of which 72.0% have ‘ever’ considered to move to a different country in their future, 53.5% were considering it ‘now’, at the time of the survey, and 13.3% had already moved country. For these immigrant trainees, academic was the main reason they gave to move from their country of origin. For all trainees, the overall main reason for which they would leave was financial (34.4%), especially in those with lower (<500€) incomes (58.1%), whereas in those with higher (>2500€) incomes, personal reasons were paramount (44.5%).
Conclusions:A high number of psychiatric trainees considered moving to another country, and their motivation largely reflects the substantial salary differences. These findings suggest tackling financial conditions and academic opportunities.
TYOT: Tripadvisor for psychiatry trainees?
- L. De Picker
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- European Psychiatry / Volume 41 / Issue S1 / April 2017
- Published online by Cambridge University Press:
- 23 March 2020, p. 913
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Background
Although guidelines to ensure the quality of postgraduate psychiatric training in Europe are provided both by the statements of the European Federation of Psychiatric Trainees (EFPT) and the UEMS Psychiatry Section's European Training Requirements, actual training conditions in different European countries have been documented to vary widely. Furthermore, most trainees are unaware of the existence of such guidelines.
ObjectiveThe test your own training (TYOT) project set out to create an easy-to-use online tool that allows trainees to assess how their own training compares in relation to the European standards, thereby empowering trainees all over Europe.
MethodsAn EFPT Focus Group consisting of psychiatric trainees or early career psychiatrists from eleven European countries created a core survey of key aspects of psychiatry training, such as the duration of the training program, the availability of clinical and educational supervision, access to international professional literature, the use of a national logbook, based on the UEMS European Training Requirements and the EFPT statements. Additional subsets of questions were designed for specific domains such as theoretical training in psychiatry, psychotherapy training and the role of supervisors and training institutions. Next, the questions were transferred to a suitable online hosting platform, which allows to automatically provide feedback in an algorithmic fashion about how the trainee’s experience compares to the European standards.
ResultsThe TYOT platform will be launched in January 2017 and the first results will be presented at the European Congress of Psychiatry 2017. For more information about the TYOT tool please visit http://efpt.eu/training/tyot/.
Disclosure of interestThe author has not supplied his declaration of competing interest.
How EFPT trainee-led cross-national research can change training in psychiatry
- L. De Picker, T. Mogren, S. Tomori
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- European Psychiatry / Volume 33 / Issue S1 / March 2016
- Published online by Cambridge University Press:
- 23 March 2020, p. S17
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Established in 2008, the Research Working Group of the European Federation of Psychiatric Trainees (EFPT) creates a platform for trainee-led collaborative studies. Several large-scale transnational studies on training-related subjects have been initiated and carried out, driven by psychiatry trainees. Examples of recent and ongoing projects are the Brain Drain study, which investigated migratory experiences and attitudes among trainees in Europe, and the TEO-PC project, which aims to raise awareness on UEMS Psychiatric competencies as well as to compile data on trainees’ experiences and satisfaction with their national training programs.
Earlier projects leading to publications have looked into drug prescription habits of trainees [1,2] and the interactions trainees with pharmaceutical industry [3]. Besides these projects, EFPT yearly gathers reports from the representatives of the national trainees associations on the structure, content and conditions of psychiatry training in all member countries. The information obtained through these channels is used actively to guide and influence policy related to psychiatry training, through collaboration with relevant organizations involved in the creation of guidelines, and through the EFPT statements, which serve to empower trainees themselves.
Disclosure of interestThe authors have not supplied their declaration of competing interest.
The psychiatry recruitment crisis across Europe: Evaluation by the European Federation of psychiatric trainees
- H. Ryland, F. Baessler, M. Casanova Dias, L. De Picker, M. Pinto Da Costa, A. Kanellopoulos, E. Sonmez, P. Alfimov, D. Sebbane, S.M. Birkle
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- European Psychiatry / Volume 33 / Issue S1 / March 2016
- Published online by Cambridge University Press:
- 23 March 2020, p. s285
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Introduction
Recruitment of medical students and junior doctors in to psychiatry is a long-standing concern in many countries, with low proportions of medical graduates choosing it as a specialty and ongoing stigma from within the medical profession. In some countries the reverse problem is the case, with too many doctors wishing to enter psychiatry, and insufficient training places available.
ObjectivesTo understand the current situation within Europe with regards to recruitment in to psychiatry and to identify existing recruitment initiatives.
MethodsThe European Federation of Psychiatric Trainees conducts an annual survey of all member organisations. A delegate of each national association of psychiatric trainees is asked to identify if their country has a problem with recruitment and if so, whether there were too many or too few applicants for training places. Delegates from countries with recruitment initiatives were contacted to provide further details.
ResultsIn 2014, a total of 31 countries completed the survey, with 17 stating that too few medical practitioners choose psychiatry. In total 8 countries with recruitment problems reported that initiatives exist to encourage doctors to enter psychiatric training. Of these, 7 responded to describe the initiatives, which included national recruitment strategies, financial incentives, careers fairs, mentoring schemes and a whole host of other projects.
ConclusionsRecruitment in to psychiatry remains a serious problem in a significant proportion of European countries, but a wide range of initiatives exist which aim to combat this shortfall. It will be important over the coming years to establish which initiatives are most effective at increasing recruitment.
Disclosure of interestThe authors have not supplied their declaration of competing interest.
Contributors
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- By Lee R. Berger, Fred L. Bookstein, Günter Bräuer, Michel Brunet, Steven E. Churchill, Ronald J. Clarke, M. Christopher Dean, Michelle S. M. Drapeau, Sarah Elton, Dean Falk, Andrew Gallagher, John A. J. Gowlett, Colin Groves, Philipp Gunz, Adam Hartstone-Rose, Jason Hemingway, Ralph L. Holloway, Vance T. Hutchinson, William L. Jungers, Ivor Janković, Kevin L. Kuykendall, Sang-Hee Lee, Julia Lee-Thorp, Paul R. Manger, Emma Mbua, Henry M. McHenry, Philipp Mitteroecker, Simon Neubauer, Osbjorn M. Pearson, Travis R. Pickering, Martin Pickford, Sally C. Reynolds, Brian G. Richmond, Avraham Ronen, Darryl J. de Ruiter, Brigitte Senut, Fred H. Smith, Muhammad A. Spocter, Matt Sponheimer, J. Francis Thackeray, Phillip V. Tobias, Peter S. Ungar, Lyn Wadley, Gerhard W. Weber, Milford H. Wolpoff, B. Headman Zondo
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- By Rose Teteki Abbey, K. C. Abraham, David Tuesday Adamo, LeRoy H. Aden, Efrain Agosto, Victor Aguilan, Gillian T. W. Ahlgren, Charanjit Kaur AjitSingh, Dorothy B E A Akoto, Giuseppe Alberigo, Daniel E. Albrecht, Ruth Albrecht, Daniel O. Aleshire, Urs Altermatt, Anand Amaladass, Michael Amaladoss, James N. Amanze, Lesley G. Anderson, Thomas C. Anderson, Victor Anderson, Hope S. Antone, María Pilar Aquino, Paula Arai, Victorio Araya Guillén, S. Wesley Ariarajah, Ellen T. Armour, Brett Gregory Armstrong, Atsuhiro Asano, Naim Stifan Ateek, Mahmoud Ayoub, John Alembillah Azumah, Mercedes L. García Bachmann, Irena Backus, J. Wayne Baker, Mieke Bal, Lewis V. Baldwin, William Barbieri, António Barbosa da Silva, David Basinger, Bolaji Olukemi Bateye, Oswald Bayer, Daniel H. Bays, Rosalie Beck, Nancy Elizabeth Bedford, Guy-Thomas Bedouelle, Chorbishop Seely Beggiani, Wolfgang Behringer, Christopher M. Bellitto, Byard Bennett, Harold V. Bennett, Teresa Berger, Miguel A. Bernad, Henley Bernard, Alan E. Bernstein, Jon L. Berquist, Johannes Beutler, Ana María Bidegain, Matthew P. Binkewicz, Jennifer Bird, Joseph Blenkinsopp, Dmytro Bondarenko, Paulo Bonfatti, Riet en Pim Bons-Storm, Jessica A. Boon, Marcus J. Borg, Mark Bosco, Peter C. Bouteneff, François Bovon, William D. Bowman, Paul S. Boyer, David Brakke, Richard E. Brantley, Marcus Braybrooke, Ian Breward, Ênio José da Costa Brito, Jewel Spears Brooker, Johannes Brosseder, Nicholas Canfield Read Brown, Robert F. Brown, Pamela K. Brubaker, Walter Brueggemann, Bishop Colin O. Buchanan, Stanley M. Burgess, Amy Nelson Burnett, J. Patout Burns, David B. Burrell, David Buttrick, James P. Byrd, Lavinia Byrne, Gerado Caetano, Marcos Caldas, Alkiviadis Calivas, William J. Callahan, Salvatore Calomino, Euan K. Cameron, William S. Campbell, Marcelo Ayres Camurça, Daniel F. Caner, Paul E. Capetz, Carlos F. Cardoza-Orlandi, Patrick W. Carey, Barbara Carvill, Hal Cauthron, Subhadra Mitra Channa, Mark D. Chapman, James H. Charlesworth, Kenneth R. Chase, Chen Zemin, Luciano Chianeque, Philip Chia Phin Yin, Francisca H. Chimhanda, Daniel Chiquete, John T. Chirban, Soobin Choi, Robert Choquette, Mita Choudhury, Gerald Christianson, John Chryssavgis, Sejong Chun, Esther Chung-Kim, Charles M. A. Clark, Elizabeth A. Clark, Sathianathan Clarke, Fred Cloud, John B. Cobb, W. Owen Cole, John A Coleman, John J. Collins, Sylvia Collins-Mayo, Paul K. Conkin, Beth A. Conklin, Sean Connolly, Demetrios J. Constantelos, Michael A. Conway, Paula M. Cooey, Austin Cooper, Michael L. Cooper-White, Pamela Cooper-White, L. William Countryman, Sérgio Coutinho, Pamela Couture, Shannon Craigo-Snell, James L. Crenshaw, David Crowner, Humberto Horacio Cucchetti, Lawrence S. Cunningham, Elizabeth Mason Currier, Emmanuel Cutrone, Mary L. Daniel, David D. Daniels, Robert Darden, Rolf Darge, Isaiah Dau, Jeffry C. Davis, Jane Dawson, Valentin Dedji, John W. de Gruchy, Paul DeHart, Wendy J. Deichmann Edwards, Miguel A. De La Torre, George E. Demacopoulos, Thomas de Mayo, Leah DeVun, Beatriz de Vasconcellos Dias, Dennis C. Dickerson, John M. Dillon, Luis Miguel Donatello, Igor Dorfmann-Lazarev, Susanna Drake, Jonathan A. Draper, N. Dreher Martin, Otto Dreydoppel, Angelyn Dries, A. J. Droge, Francis X. D'Sa, Marilyn Dunn, Nicole Wilkinson Duran, Rifaat Ebied, Mark J. Edwards, William H. Edwards, Leonard H. Ehrlich, Nancy L. Eiesland, Martin Elbel, J. Harold Ellens, Stephen Ellingson, Marvin M. Ellison, Robert Ellsberg, Jean Bethke Elshtain, Eldon Jay Epp, Peter C. Erb, Tassilo Erhardt, Maria Erling, Noel Leo Erskine, Gillian R. Evans, Virginia Fabella, Michael A. Fahey, Edward Farley, Margaret A. Farley, Wendy Farley, Robert Fastiggi, Seena Fazel, Duncan S. Ferguson, Helwar Figueroa, Paul Corby Finney, Kyriaki Karidoyanes FitzGerald, Thomas E. FitzGerald, John R. Fitzmier, Marie Therese Flanagan, Sabina Flanagan, Claude Flipo, Ronald B. 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Yee, Viktor Yelensky, Yeo Khiok-Khng, Gustav K. K. Yeung, Angela Yiu, Amos Yong, Yong Ting Jin, You Bin, Youhanna Nessim Youssef, Eliana Yunes, Robert Michael Zaller, Valarie H. Ziegler, Barbara Brown Zikmund, Joyce Ann Zimmerman, Aurora Zlotnik, Zhuo Xinping
- Edited by Daniel Patte, Vanderbilt University, Tennessee
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- The Cambridge Dictionary of Christianity
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- 05 August 2012
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- 20 September 2010, pp xi-xliv
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27. Commission des Étoiles Variables
- M. R. S. Dugan, M. Grouiller, MM. Banachiewicz, L. Campbell, Cox, Danjon, de Roy, Einbu, Gadomski, Gaposchkin, Gerasimovich, Graff, Guthnick, Mlle Harwood, MM. Hertzsprung, Hoffmeister, Mme H. B. Hogg, MM. Jacchia, Jordan, Joy, Kopal, Kordylewski, Kukarkin, Lacchini, Lindley, Ludendorff, McLaughlin, Merrill, Mitchell, A. V. Nielsen, Pearce, D. B. Pickering, Prager, Ryves, Shapley, Silva, Steavenson, Stebbins, Stein, E. Strömgren, ten Bruggencate, Tiercy, Tsesevich, Voûte, Walter
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- Transactions of the International Astronomical Union / Volume 6 / 1939
- Published online by Cambridge University Press:
- 25 April 2016, pp. 231-236
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- 1939
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The Commission again subscribes to a number of the good resolutions it has made in the past, for example, to follow the almost universal practice of counting the observed times, either in decimals of a day or in hours and minutes, from Greenwich mean noon, even though one is convinced that the rest of the world should adopt U.T.; and to prepare a chart, identifying the variable and the comparison stars, to form a part of the discovery announcement of a variable which cannot be easily identified through a Durchmusterung number and which is bright enough to invite further observation.
27. Commission des Étoiles Variables
- M. A. A. Nijland, M. R. S. Dugan, MM. Banachiewicz, A. Bemporad, Blažko, L. Campbell, Cox, Danjon, de Roy, Dufay, Einbu, Gadomski, Gerasimovič, Graff, Grouiller, Guthnick, Hellerich, Henroteau, Hertzsprung, Hoffmeister, Jacchia, Jordan, Kordy-lewski, Kukarkin, Lacchini, Ludendorff, Luplau-Janssen, McLaughlin, Merrill, Mitchell, Nielsen, D. B. Pickering, Prager, Mlle Sawyer, MM. Shapley, Silva, Steavenson, Stebbins, E. Strömgren, Mlle Swope, MM.ten Bruggencate, Voûte, Zessewitch
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- Journal:
- Transactions of the International Astronomical Union / Volume 5 / 1936
- Published online by Cambridge University Press:
- 25 April 2016, pp. 168-172
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- 1936
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It is well-nigh impossible to give, in a short report, an adequate idea of the enormous activity in Variable-Star Astronomy during the past three years. Without attempting to be complete I shall give a summary of the most important recent occurrences in this field of research.
Statistical data for eclipsing binaries were given by Gaposchkin (Veröff. Berlin-Bab. 9, Heft 5), for long-period variable stars by Ludendorff (Sitz.-ber. Ak. d. Wiss. Berlin, 1932), Thomas (Veröff. Berlin-Bab. 9, Heft 4) and Sterne and L. Campbell (Harvard Annals).
Some valuable catalogues have been issued: a Finding List for Observers of Eclipsing Variables by Dugan (Princeton Contr. No. 15), a Catalogue of Eclipsing Variables, together with a Program of Investigations, by Martinoff (Engelhardt Obs. Bull. No. 2), a Catalogue and Ephemeris of Short-period Cepheids by Zessewitsch (Len. Un. A. 0. Bull. No. 3).
27. Commission des Étoiles Variables
- M. H. Shapley, M. A. A. Nijland, MM. Ascarza, Baldwin, Banachiewicz, Bemporad, Mile Blagg, MM. Blažko, A. N. Brown, L. Campbell, Mile Cannon, MM. Cox, Danjon, De Roy, Dugan, Gerasimovič, Graff, Grouiller, Guthnick, Henroteau, Hertzsprung, Hoffmeister, Jordan, Kordylewski, Kristensen, Lacchini, Ludendorff, Luplau-Janssen, McLaughlin, Mascart, Merrill, D. B. Pickering, Prager, Ryves, Schilt, Shinjo, Silva, Stebbins, Stein, Sternberk, E. Strömgren, ten Bruggencate
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- Journal:
- Transactions of the International Astronomical Union / Volume 4 / 1933
- Published online by Cambridge University Press:
- 25 April 2016, pp. 159-165
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- 1933
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Fourteen members of the committee have failed to respond to correspondence; nearly all of the others have expressed the definite opinion that non-responsive members should be dropped from committee membership when a new list is prepared a few correspondents indicating however, that the policy should be adopted for Commission 27 only if generally adopted for all commissions of the Union.