Category / Featured academics

Obesity prevention in men, findings from a recent HTA Report

BU research, Featured academics, Publishing, Research news, Uncategorized

Media coverage HTA Report June 2014

HSC Open Seminar

 

“Obesity Prevention in Men” with Professor Edwin van Teijlingen

Wednesday 2nd July 2014

 

13.00 – 13.50pm

 

Bournemouth House, B126

 

 

On July 2nd Prof. Edwin van Teijlingen will present findings from a HTA report published this month.  Researchers from the University of Aberdeen, Bournemouth University and the University of Stirling examined the evidence for managing obesity in men and investigated how to engage men with obesity services. The evidence came from trials, interviews with men, reports of studies from the UK, and economic studies.

 

The research found that men are more likely than women to benefit if physical activity is part of a weight-loss programme.   Also eating less produces more weight loss than physical activity on its own.  However, the type of reducing diet did not appear to affect long-term weight loss.

 

Prof. van Teijlingen will highlight some of the key messages for Public Health policy and practice.  For example, that although fewer men than women joined weight-loss programmes, once recruited they were less likely to drop out than women.   The perception of having a health problem, the impact of weight loss on health problems, and the desire to improve personal appearance without looking too thin were motivators for weight loss amongst men.

This work has been funded as part of the ROMEO project (Review Of Men and Obesity) by the National Institute for Health Research, Health Technology Assessment Programme (NIHR HTA Project 09/127/01).

The full report can be downloaded here: http://www.journalslibrary.nihr.ac.uk/__data/assets/pdf_file/0019/118180/FullReport-hta18350.pdf

–xx–

We hope you can make it and we look forward to seeing you there.

Beckie Freeman

Academic Community Administrator| Health & Wellbeing Community

01202 962184 | rfreeman@bournemouth.ac.uk

International Early Labour Research Group – 2014 meeting

BU research, EU, Featured academics, Research news

Photo (L to R): Mechthild Gross (Germany), Marie Nott (UK), Tine Eri (Norway), Helen Spiby (UK)., Viola Nyman (Sweden), Vanora Hundley (UK), Patti Janssen (Canada), Mary-Ann Davey (Australia).

Researchers from across the globe met in Prague recently to discuss early labour research and to plan an international collaborative study. The group has been meeting regularly since 2008 and produced a number of collaborative papers, including a special issue of Midwifery dedicated to early labour and guest edited by two of the team. The meeting was timely given the recent ACOG guideline, related to re-framing established labour at 6cm cervical dilatation.

Presentations included:

  • Meta-synthesis on women’s experiences of early labour – Tine Eri (Vestfold University College, Norway)
  • Clinical midwives and early labour – Viola Nyman (University of Gotherberg, Sweden)
  • Role of media and women’s behaviours in early labour – Vanora Hundley (Bournemouth University, UK) also on behalf of Helen Cheyne (University of Stirling, UK)
  • Early labour triage service on the experiences of women, partners and midwives – Marie Nott (University of Southampton, UK)
  • Scoping Review of definitions of early labour onset and validation of the prediction tool – Patti Janssen  (University of British Colombia, Canada) 
  • Women’s perceptions of pre-hospital labour duration – Patti Janssen  (University of British Colombia, Canada) 

Opportunities for future collaboration were discussed and projects were identified that could involve a number of settings.  The potential for a fit with European Union funding will be explored.  Virtual collaboration will continue with the next face to face meeting to be held at Grange-over-Sands, immediately prior to the Normal Birth Conference 2015.

Strong CMMPH presence at ICM conference in Prague!

BU research, Featured academics, PG research, Publishing, Research news, Training, Uncategorized

Dr. Carol Wilkins

In the first week of June members of the Centre for Midwifery, Maternal and Perinatal Health presented BU’s midwifery research and education at the 30th ICM (International Confederation of Midwives) Congress in Prague (Czech Republic).

There were four oral presentations in total, one workshop and three poster presentations.  The oral presentations comprised:

  1. Dr. Carol Wilkins (see picture) presented from her Ph.D. work ‘Emotional processing in childbirth study: exploration of the relationship between maternal emotions in pregnancy and risk of postnatal depression’.
  2. HSC Professor Vanora Hundley presented her international work on clean birth kits.
  3. Senior Lecturer in Midwifery Alison Taylor gave a paper under the title ‘Letting off steam! Video diaries to share breastfeeding experiences.  Her Ph.D. thesis research uses a novel approach of giving hand-held cameras to make home video diaries about their ‘realities’ of breastfeeding.
  4. HSC student Sheetal Sharma presented her Ph.D. research ‘Getting women to care: mixed–methods evaluation of maternity care intervention in rural Nepal’.

Dr Susan Way led a workshop on escalating concerns in relation to poor clinical practice and disrespectful care.

 

 

 

 

 

 

 

Furthermore, three HSC posters were displayed as part of a special session on Midwifery in South Asia, all three related to different CMMPH maternity care studies conducted in Nepal.

  1. Sharma, S.  Sicuri, E., Belizan, JM., van Teijlingen, E., Simkhada, P., Stephens J.,  Hundley, V., Angell, C.,  Getting women to care in Nepal: A Difference in Difference analysis of a health promotion intervention
  2. Milne, L, Hundley, V, van Teijlingen, E, Ireland, J, Simkhada, P, Staff perspectives of barriers to women accessing birthing services in Nepal: A qualitative study,
  3. Sharma, S., van Teijlingen, E., Hundley, V. Simkhada, P., Angell, C. Pregnant & Dirty?

 

Prof. Edwin van Teijlingen

CMMPH

What happens next: can the future of tech-enabled crime ever be predicted?

BU research, Featured academics, Uncategorized

Dr Christopher Richardson from the BUCSU delivered a thought provoking presentation at the CIFAS Fraud Conference, which was held at Dexter House London on the 3 June 2014. It was attended by the UK’s financial and insurance communities.

The conference was alerted to the fact that UK fraud is currently running at 25 incidents per hour; with an annual cost estimated above £52 billion.

Dr Richardson’s oversight expanded that through the continuance of pervasive technologies; increased crime wave and progressive skills shortage within the security industry, has all resulted in a perfect storm.

In forecasting the cyber threat landscape Dr Richardson projected the increase of insider threat, malicious software and human error, which if not corrected will bring the cost of fraud above £100 billion. The real question is, at what point will society, enterprise and individuals demand government action, and in particular a more determined approach to the investigation and prosecution of fraudulent activities? A characteristic of cybercrime is that it’s global, whereas policing is local.  In order to rescue our beleaguered and often under skilled law enforcement agencies, we need to tackle the issues from an international perspective, with global partnerships engaging business communities and overcoming their reluctance to breach reporting.

This conference follows on from the BUCSU’s strategic cyber policing conference in February, where cyber enabled and cyber dependent crimes were discussed. Please visit previous blog post for further info on the South West Police Cybercrime Conference.

   

 

Congratulations and Good Luck

BU research, Featured academics

April saw an increase in the level of activity for bids being submitted and awards being won with congratulations due to Schools/Faculty for winning research and consultancy contracts.

A large number of applications were submitted to the British Academy’s small grants scheme.  Good luck to the applicants Ke Rong (BS) and Xiaosong Yang (MS), to Venancio Tauringana (BS), to Medhi Chowdhury, Jens Holscher and Dragana Radicic (all BS), to Hossein Hassani (BS), to Juliet Memery and Dawn Birch (both BS), to Carol Bond (HSC), to Hywel Dix (MS), to Lorraine Brown (ST), and to Sukanya Ayatakshi (ST) and Julie Robson (BS).  These cover a variety of research topics, which include, but are not exclusive to, 3D printing; user generated online health information; therapeutic potential of visiting memorials; the effects of Eastern European migration on local businesses in the UK; and women social entrepreneurs.

For the Business School, in addition to the eight BS applicants listed above who have applied to the British Academy, good luck to Maurizio Borghi for his application to the Heritage Plus Joint Call (part of the Joint Partner Initiative on Cultural Heritage).

For HSC, congratulations are due to Clive Andrewes for his short course with the Strategic Health Authority.  Good luck to Anthea Innes, Fiona Kelly (both HSC), Damien Fay, Samuel Nyman, Jan Wiener (all SciTech), Donald Nordberg (BS) and Stephen Page (ST) for their application to the Alzheimer’s Society for a Doctoral Training Centre.

For MS, congratulations to Stephanie Farmer for her two consultancies with the Borough of Poole and with Breda University of Applied Science, to Liam Toms for his consultancy with McKenna Townsend PR, to grants academy member Janice Denegri Knott for her consultancy with SoGood Health, to Dan Jackson for his consultancy with Blue Rubicon Ltd, and to Iain MacRury for his two consultancies with Dorset Local Enterprise Partnership.  Good luck to Georgiana Grigore and Rebecca Jenkins for their application to RCUK, and to Jamie Matthews for his application to the Japan Foundation Endowment Committee. A number of academics have submitted applications to the European Commission and so good luck to Julian McDougall for his application on ‘games for knowledgeable youth’, to Alexander Pasko, to Lihua You and Jian Zhang for their joint application, and to Peter Comninos for his application on creative emergent neurogaming.

For the Faculty of Science and Technology, congratulations are due to Jonathan Monteith for his two consultancies with Anesco and ESJA Properties Ltd, to Christine Keenan for her contract with the Higher Education Academy, and to Genoveva Esteban for her consultancy with Dorset Campaign to Protect Rural England.  Good luck to Amanda Korstjens for her application to the European Commission, to Raian Ali, Keith Phalp, Jacqui Taylor and Sarah Williams for their application to RCUK on ‘addiction-aware computing’, to Genoveva Esteban for her short course to the Society of Biology, and to Christos Gatzidis for his application to the European Commission Erasmus+.

For ST, congratulations to Janet Dickinson for her successful AHRC project.  Good luck to Jeff Bray and Sine McDougall (SciTech) for their consultancy to Which?, to Heather Hartwell for her application to COST – European Cooperation in Science and Technology and for her application to the European Commission, and to Dimitrios Buhalis and Alessandro Inversini for their application to the European Commission on ‘contextual game-based learning for tourism.

Neuroscience@BU seminar: “Emergent oscillatory activity in the cerebral cortex” Friday the 2nd of May 14:00 PG 10 (Poole House)

BU research, Featured, Featured academics, Uncategorized

Next Friday the 2nd of May at 14:00 h in PG10, we will have a research seminar in neuroscience entitled “Emergent oscillatory activity in the cerebral cortex”.

Our guest is Prof. Maria Victoria Sanchez-Vives, http://www.sanchez-vives.org/,  ICREA Research Professor at the IDIBAPS (Institut d’Investigacions Biomediques August Pi i Sunyer) in Barcelona, head of the Systems Neuroscience group.

Prof. Maria Victoria Sanchez-Vives has published a number of influential papers in journals like e.g. Science, Nature Neuroscience or PNAS and is currently the Chief Editor of Frontiers in Systems Neuroscience. She has been funded by Human Frontier Science Program, national and international agencies and has been partner in six European Projects. She is currently coordinator of the FET EU project CORTICONIC.

Her main interests include how neuronal and synaptic properties as well as connectivity determine the emergent activity generated by neuronal networks. The integration of the cortical information giving rise to bodily representation and the combination of brain-computer interfaces and virtual reality for understanding these processes, is another research line of her group.

We strongly suggest not to miss the opportunity to attend to this seminar. Afternoon cakes, coffee and tea will be served during the event.

Best wishes, Emili

Emili Balaguer-Ballester, PhD
Faculty of Science and Technology , Bournemouth University
Bernstein Center for Computational Neuroscience, University of Heidelberg

———————————

Title: “Emergent oscillatory activity in the cerebral cortex”.

Abstract: “Understanding complex systems like brain networks is a challenge. Cortical networks can perform computations of remarkable complexity, accounting for a large variety of behaviours and cognitive states. At the same time, the same networks can engage in stereotypical patterns of spatio-temporal activation, such as the ones that can be observed during sleep, anaesthesia and in cortical slice. Collective phenomena emerging from activity reverberation in cortical circuits at different spatio-temporal scales results in a rich variety of dynamical states. Slow (around or below 1 Hz) and fast (15-100 Hz) rhythms are spontaneously generated by the cortical network and propagate or synchronize populations across the cortex. This is the case even in isolated pieces of the cortical network, or in vitro maintained cortical slices, where both slow and fast oscillations are also spontaneously generated. The similarity between some of these patterns both in vivo and in vitro suggests that they are somehow a default activity from the cortical network. We understand that these emergent patterns provide information on the structure, dynamics and function of the underlying cortical network and their alterations in neurological diseases reveal the circuits dysfunction”.

 

 

 

Congratulations and Good Luck

BU research, Featured academics, Uncategorized

March saw an increase in the level of activity for bids being submitted and awards being won with congratulations due to Schools/Faculty for winning research and consultancy contracts.

For the Business School, congratulations to Dean Patton for his short course with the Guernsey Training Agency, and to Huiping Xian, grants academy member Fabian Homberg and Davide Secchi for their short course with Hubei Star Around Universe Culture Exchange Company.  Good luck to Ke Rong with his ESRC application, and to Milena Bobeva and Richard Berger (Media School) for their contract to the Higher Education Academy.

For HSC, congratulations are due to Caroline Ellis for her short course on appreciative inquiry masterclass, to Peter Thomas for his consultancy with Poole Hospital NHS Trust, and to Bernie Edwards for two short courses both with Southern Health NHS Foundation Trust.  Good luck to Ann Hemingway for her application to Alcohol Research UK to carry out a case study on alcohol harm and licensing density, to Clive Andrewes and Sarah Gallimore for their short course with Royal Bournemouth and Christchurch Hospitals NHS Foundation Trust, to Anthea Innes and Damien Fay (SciTech) for their application to the EPSRC, and to Keith Brown for his contract to Hampshire County Council.

For MS, congratulations to Iain MacRury for his consultancy with Dorset Local Enterprise Partnership.  Good luck to Lihua You for his application to the British Academy, to Julian McDougall for his application to UK Literacy Association, to grants academy member Anna Feigenbaum for her contract to NESTA and her application to Antipode Foundation, to grants academy members Jenny Alexander, Caroline Hodges, Dan Jackson and Richard Scullion for their application to AHRC, to Chindu Sreedharan, Ana Adi and Richard Berger for their application to the ESRC on initiating and supporting collaborative learning through community writing for children and teachers in Indian and Nepalese schools.

For the Faculty of Science and Technology, congratulations are due to Paola Palma for three short courses, to Gary Underwood for his consultancy with North Sea Systems, to Siamak Noroozi and Philip Sewell for their short course with EADS, and to Jonathan Monteith for his consultancy with Terence O’Rourke Plc.  Good luck to Feng Tian for his application to the Royal Society, to Lai Xu and Paul de Vrieze for their application to the Royal Society, to grants academy member Emilie Hardouin for her contract to the EC Erasmus Mundus, to Sine McDougall and Kevin Thomas for their application to the British Medical Association to research the impact of patient complications and errors on surgeons, to Hongnian Yu (leading on two) and Shuang Cang (Tourism – leading on one) for their three applications to the EC Erasmus Mundus, to Rob Britton for his application to Interreg, and to Nan Jiang for his consultancy to Grads for Growth.

For ST, congratulations to Jonathan Hibbert for his two consultancies with Bournemouth Borough Council and NHS Dorset, and to Keith Hayman for his consultancy with Corinthian Hotels.  Good luck to Miguel Moital for his EC Erasmus Mundus application.

CEMP Success: Three BU Colleagues approved as Higher Education Academy Associates

BU research, Featured academics, Fusion

Last week colleagues from BU’s Centre for Excellence in Media Practice (CEMP) and Centre for Excellence in Learning (CEL) won appointments to the newly approved Higher Education Academy (HEA) Associates programme. CEMP’s Director Julian McDougall, Head of CEMP’s Postgraduate Research Richard Berger, and CEMP Fellow Anna Feigenbaum from the Media School’s CMC will join the re-developed Academic Associates community. As Associates they will take part in research projects, event programming and developing the HEA’s UK and International consultancy.  The HEA is the UK’s main provider of resources, events and workshops relating to learning and teaching in higher education, servicing 28 different disciplines. In addition to running its professional recognition Fellowship programme–that many BU staff are a part of–the Higher Education Academy also offers a robust funding scheme for education research and practice.  Through their Academic Associate roles, Julian, Richard and Anna look forward to strengthening CEL and BU’s relationship with the HEA.  Continuing CEMP’s track record of internationally recognised higher education research, this role will enhance the centre’s engagement in media education research consultancy, shaping innovative teaching practice and influencing HE policy.

Congratulations to Dr. Joyce Miller (PhD by Publication)

BU research, Featured academics, PG research, Publishing, Research news, Uncategorized

Congratulations to HSC postgraduate student Joyce Miller who has just completed her PhD by Publication.  Joyce Miller is a chiropractic practitioner and lecturer with over 25 years private practice experience. She is Associate Professor at Anglo-European Chiropractic College in Bournemouth.  Her thesis Effects of Musculoskeletal Dysfunction in Excessive Crying Syndromes of Infancy presents research spanning more than a decade.  Joyce studied the relevance of chiropractic manual therapy to excessive crying in infancy through a unique series of eight clinical academic papers.

 

The eight separate studies used a range of different research methods:

  1. a demographic survey of paediatric patients attending a chiropractic clinic;
  2. a record study to determine the prevalence of side effects or adverse events;
  3. a cohort study to substantiate sub-groups of excessively crying infants;
  4. a prospective observational study to develop a predictive model using likelihood ratios to forecast the presence of infant colic in a clinical population;
  5. validation of a one-page instrument to assess clinical outcomes against the gold standard crying diary;
  6. a randomised comparison trial of two types of chiropractic manual therapy for infant colic;
  7. a randomised controlled single blind trial to determine efficacy of blinding as well as chiropractic manual therapy in management of infant colic;
  8. a case-control study to investigate  long-term effects of chiropractic manual therapy into toddlerhood.

Well done!

Prof. Edwin van Teijlingen

HSC

Low-Power High-Quality Interactive Digital Media: The Challenges

BU research, Featured academics, PG research

Dear all,

We would like to invite you to an additional guest talk for the Creative Technology Research Centre that will be delivered by Professor Edmond C. Prakash from the University of Bedfordshire.

Title: Low-Power High-Quality Interactive Digital Media: The Challenges

Time: 2:00PM-3:00PM

Date: Thursday 3rd April 2014

Room: P302 (Poole House, Talbot Campus)

Abstract: Traditional GPUs have super graphics performance and have been extremely utilised for media rich applications. However, they are not suitable for low-power mobile devices. Digital media research and development are at the crossroads. This talk looks at some of the key challenges faced in Embedded GPUs for next generation media rich applications (interactive 3D graphics and games) on low-power mobile devices. Graphics programmers, 3D modellers, animators and game developers will benefit from this talk.

Biography:  Edmond is a Professor in Computer Games Technology and the Director for the Institute for Research in Applicable Computing at the University of Bedfordshire. He is the founding editor of the International Journal of Computer Games Technology.  Edmond has worked at top institutions across the globe including MIT, UIUC, BNU, NTU, MMU, PUJ and IISc. Edmond’s research interests are in volume graphics, real-time visualisation, game based learning and game engines.

We hope to see you there,

Dr. David John

Highly Commended Paper by Lorraine Brown, John Edwards & Heather Hartwell.

BU research, Delicious links, Featured academics, Publishing, Research news, Uncategorized

Congratulations to BU academics Dr. Lorraine Brown, Prof. John Edwards and Prof. Heather Hartwell.  Their recent paper “Eating and emotion: focusing on the lunchtime meal” published in the British Food Journal has been selected by the journal’s Editorial Team as a Highly Commended Paper of 2013.

“Eating and emotion: focusing on the lunchtime meal” was chosen as a Highly Commended Paper winner as it is one of the most impressive pieces of work the British Food Journal has seen throughout 2013.

The three winners will be presented with a certificate by the journal!  The authors are all based in the School of Tourism whilst Prof. Hartwell also has appointment in the School of Health & Social Care.

Details of the paper are listed at the following web site: http://www.emeraldinsight.com/journals.htm?issn=0007-070X&volume=115&issue=2&articleid=17077382&show=html

 

Prof. Edwin van Teijlingen

Centre for Midwifery, Maternal & Perinatal Health, School of Health & Social Care

Neuroscience@BU seminars next week, Wednesday the 12th and Friday the 14th

BU research, Featured, Featured academics, Research themes, Uncategorized

Dear colleagues,
Next week we will have two thematic research seminars in neuroscience organized by Dr Julie Kirby and me.

-The first of the seminars of this series will take place next Wednesday the 12th of March, 15:00, P302 LT. The invited speaker is Dr Dimitris Pinotsis, http://iris.ucl.ac.uk/iris/browse/profile?upi=DPINO08.
Dr Pintosis obtained his PhD in September 2006 from the Department of Applied Mathematics and Theoretical Physics (DAMTP) of the University of Cambridge. After an EPRSC Research Fellowship and lectureship in Reading University he moved to UCL where he is working at the Welcome Trust Centre for Neuroimaging ; having secured funding from EPSRC and the Wellcome Trust.
Dr Pinotsis has a strong track record and a number of landmark publications in imaging neuroscience modelling; he is also the author of the most advanced versions of the state-of the art models for neuroimaging data, the dynamic causal models. I am familiar with Dimitris work and I very strongly encourage the attendance to researchers both in machine learning and in cognitive psychology.
The title of his exciting talk is “Electrophysiological Data and the Biophysical Modelling of Local Cortical Circuits”. “Dynamic Causal Modelling (DCM) is a general framework that allows for a formal (Bayesian) analysis of the properties of neuronal populations, based upon realistic biophysical models. In the past few years, a wide variety of such models has been implemented in the DCM framework. In this talk, I will first review some of these recent advances and then focus on models that allow one to infer spatial parameters of cortical infrastructures generating electrophysiological signals (like the extent of lateral connections and the intrinsic conduction speed of signal propagation on the cortex). I will try to highlight the links between different models and address how the experimental hypothesis or question asked might inform the choice of an appropriate model”.

-The second seminar of this series will take place on Friday the 14th of March, at 14:00 in K101. Our guest is Prof. Maria Victoria Sanchez-Vives, http://www.sanchez-vives.org/

Maria V. Victoria Sánchez-Vives, M.D., PhD in Neurosciences has been ICREA Research Professor at the IDIBAPS (Institut d’Investigacions Biomediques August Pi i Sunyer) in Barcelona since 2008, where she is the head of the Systems Neuroscience group. She is currently co-director of the Event Lab (Experimental Virtual Envir onments in Neuroscience and Technology).
After obtaining her PhD at the University of Alicante in Spain, MVSV was postdoctoral fellow/research associate at Rockefeller University (1993-1994) and Yale University (1995-2000). She next established her own laboratory at the Neuroscience Institute of Alicante (Consejo Superior de Investigaciones Científicas) while being Associate Professor of Physiology. Her independent research has been supported by national and international agencies. She has been funded by Human Frontier Science Program and has been partner in six European Projects. She is currently coordinator of the FET EU project CORTICONIC.
Her main interests include how neuronal and synaptic properties as well as connectivity determine the emergent activity generated by neuronal networks. The integration of the cortical information giving rise to bodily representation and the combination of brain-computer interfaces and virtual reality for understanding these processes is another research line of her group.
She is currently Chief Editor of Frontiers in Systems Neuroscience.
For information see www.sanchez-vives.org
Maria Victoria Sanchez-Vives is a renowned neuroscientist which has published a number of highly influential papers in journals like e.g. Science, Nature Neuroscience, PNAS or Journal of Neuroscience. I strongly encourage not missing the opportunity to attend to this seminar and to discuss perhaps potential synergies.
The title of her talk will be “Emergent oscillatory activity in the cerebral cortex”.
“Understanding complex systems like brain networks is a challenge. Cortical networks can perform computations of remarkable complexity, accounting for a large variety of behaviours and cognitive states. At the same time, the same networks can engage in stereotypical patterns of spatio-temporal activation, such as the ones that can be observed during sleep, anaesthesia and in cortical slice. Collective phenomena emerging from activity reverberation in cortical circuits at different spatio-temporal scales results in a rich variety of dynamical states. Slow (around or below 1 Hz) and fast (15-100 Hz) rhythms are spontaneously generated by the cortical network and propagate or synchronize populations across the cortex. This is the case even in isolated pieces of the cortical network, or in vitro maintained cortical slices, where both slow and fast oscillations are also spontaneously generated. The similarity between some of these patterns both in vivo and in vitro suggests that they are somehow a default activity from the cortical network. We understand that these emergent patterns provide information on the structure, dynamics and function of the underlying cortical network and their alterations in neurological diseases reveal the circuits dysfunction”.

If you would like to talk to the guests kindly let me know.
Best wishes, Emili

Emili Balaguer-Ballester, PhD
Faculty of Science and Technology , Bournemouth University
Bernstein Center for Computational Neuroscience, University of Heidelberg