Tag-arkiv: University of Helsinki

Postdoc­toral Re­searcher in Stat­ist­ics and Ma­chine Learn­ing

The University of Helsinki (https://www.helsinki.fi/en) is an international scientific community of 40,000 students and researchers. It is one of the leading multidisciplinary research universities in Europe and ranks among the top 100 international universities in the world. It offers comprehensive services to its employees, including occupational health care and health insurance, sports facilities, and opportunities for professional development. The International Staff Services (https://www.helsinki.fi/en/university/working-at-the-university) office assists employees from abroad with their transition to work and life in Finland.

The Department of Mathematics and Statistics is the largest university department for mathematical sciences in Finland. The multifaceted research carried out at the Department of Mathematics and Statistics has received the highest points in several evaluations. The Organismal and Evolutionary Biology Research Programme is situated at the Viikki science park and belongs to the Faculty of Biological and Environmental Sciences of University of Helsinki.

The Department of Mathematics and Statistics (MS) and the Organismal and Evolutionary Biology Research Programme (OEB) jointly invite applications for a

POSTDOCTORAL RESEARCHER

in statistics and machine learning for a fixed term of two years. There will be a trial period of six months in the beginning. The starting date is 1 April, 2020, but a later starting date can be negotiated.

The post doc position is part of the Research Centre for Ecological Change (REC) and is funded by the Jane and Aatos Erkko Foundation and Academy of Finland. PIs of the Centre are prof. Anna-Liisa Laine, prof. Otso Ovaskainen, prof. Tomas Roslin, associate. prof. Marjo Saastamoinen and assist. prof. Jarno Vanhatalo. REC is a consortium of research groups from several departments of the University of Helsinki that operates mainly at OEB.

The overarching aim of REC is to generate a coordinated analysis of long-term ecological data to understand impacts of global change. To unravel how populations and interactions between species in nature are responding to ongoing environmental change, the project takes advantage of the unique long-term datasets collected in Finland. The centre also develops state-of-the-art methodology for analysing long-term spatially structured data sets within a joint species distribution modeling framework. For more information please visit our website Research Centre for Ecological Change (https://www.helsinki.fi/en/researchgroups/research-centre-for-ecological…).

The statistics and machine learning position is placed at departments of mathematics and statistics and OEB, and is aimed at developing statistical and computational methods for analyzing large and heterogeneous data. The methodological work focuses specifically on development of Bayesian hierarchical multivariate spatio-temporal models and predictive model comparison methods within so-called joint species distribution modeling (JSDM) framework. JSDMs are multivariate models that can be applied to hierarchical, spatial and temporal study designs, and many kinds of response data. The JSDMs used in this project are built around novel latent factor and Gaussian process models. For our recent methodological publications, see the reference list at the end.

The successful applicant should have doctoral degree in statistics, machine learning, applied mathematics or other relevant field, and have experience in the development and application of Bayesian methods for computationally challenging problems. Prior experience in ecology is not necessary, but considered an advantage. The exact direction of the work can be agreed upon based on the experience and interests of the candidate.

For more information, contact assistant prof. Jarno Vanhatalo (jarno.vanhatalo(at)helsinki.fi).

The salary of the successful candidate will be based on level 5 – 6 of the demands level chart for teaching and research personnel in the salary system of Finnish universities. In addition, the appointee will be paid a salary component based on personal performance. The starting salary will be ca. 3300 – 3800 euros/month, depending on the appointee’s qualifications and experience.

Applications should include the following documents as a single pdf file: motivational letter (max 1 page), CV (max 2 pages), and publication list. Please also include contact information of two persons willing to provide a reference letter by separate request.

Please submit your application using the University of Helsinki Recruitment System via the Apply for the position link. Applicants who are employees of the University of Helsinki are requested to leave their application via the SAP HR portal. The deadline for submitting the application is 1 March 2020.

References relevant to the project

Hartmann, M., Hosack, G. R., Hillary, R. M. and Vanhatalo, J. (2017). Gaussian processs framework for temporal dependence and discrepancy functions in Ricker-type population growth models. Annals of Applied Statistics, 11(3):1375-1402.

Itter, I., Vanhatalo, J. and Finley, J. (2019). EcoMem: An R package for quantifying ecological memory. Environmental Modelling & Software, 119: 305-308.

Liu, J. and Vanhatalo, J. (2020). Bayesian model based spatio-temporal sampling designs and partially observed log Gaussian Cox process. Spatial Statistics, 35:100392.

Ovaskainen, O., Tikhonov, G., Norberg, A., Blanchet, F. G., Duan, L., Dunson, D., Roslin, T. and Abrego, N. (2017a). How to make more out of community data? A conceptual framework and its implementation as models and software. Ecology Letters 20, 561-576

Ovaskainen, O., Tikhonov, G., Dunson, D., Grøtan, V., Engen, S., Sæther, B.-E. and Abrego, N. (2017b). How are species interactions structured in species rich communities? A new method for analysing time-series data. Proceedings of the Royal Society B: Biological Sciences 284, 20170768.

Tikhonov, G., Duan, L., Abrego, N., Newell, G., White, M., Dunson, D., and Ovaskainen, O.. 2019. Computationally efficient joint species distribution modeling of big spatial data. Ecology 00( 00):e02929.

Vanhatalo, J., Hartmann, M and Veneranta, L (2019). Additive multivariate Gaussian processes for joint species distribution modeling with heterogeneous data. Bayesian Analysis, doi:10.1214/19-BA1158

Vanhatalo, J., Li, Z. and Sillanpää, M. (2019). A Gaussian process model and Bayesian variable selection for mapping function-valued quantitative traits with incomplete phenotype data. Bioinformatics, 35(19):3684-3692.

Vanhatalo, J., Hosack, G. R. and Sweatman, H. (2017). Spatio-temporal modelling of crown-of-thorns starfish outbreaks on the Great Barrier Reef to inform control strategies. Journal of Applied Ecology, 54:188-197.

Due date

01.03.2020 23:59 EET

Read the job description at the university homepage

Apply for the position

Post expires on Sunday March 1st, 2020

Postdoc­toral Re­searcher or Doc­toral Stu­dent in Mo­lecu­lar-based Fungal Com­munity Eco­logy

The University of Helsinki, founded in 1640, is one of the world’s leading universities for multidisciplinary research. The University of Helsinki has an international academic community of 40,000 students and staff members, and it offers comprehensive services to its employees, including occupational health care and health insurance, sports facilities, and opportunities for professional development. The International Staff Services (https://www.helsinki.fi/en/university/working-at-the-university) office assists employees from abroad with their transition to work and life in Finland. The Organismal and Evolutionary Biology Research Programme is situated at the Viikki science park and belongs to the Faculty of Biological and Environmental Sciences of University of Helsinki.

The Organismal and Evolutionary Biology Research Programme (OEB) invites applications for a

POSTDOCTORAL RESEARCHER OR DOCTORAL STUDENT

in the field of molecular-based fungal community ecology for a fixed term of three years for a postdoctoral researcher or four years for a PhD student. There will be a trial period of six months in the beginning.

The postdoc / PhD student positions are part of the LIFEPLAN project funded by an ERC Synergy grant to Prof. Otso Ovaskainen at the University of Helsinki, Prof. Tomas Roslin at the Swedish University of Agricultural Sciences in Uppsala, Sweden, and Prof. David Dunson at Duke University, USA. The starting date is 1 April 2020, but a later or earlier starting date can be negotiated.

The overarching aim of LIFEPLAN is to characterize biological diversity through a worldwide sampling program, and develop the bioinformatic and statistical approaches needed to make the most out of these data. We will generate the most ambitious, globally distributed and systematically collected data set to date on a broad range of taxonomical groups. For more information please visit our website (https://www.helsinki.fi/en/projects/lifeplan).

The successful candidate will work with extensive global data on fungi sampled using DNA-based methods from air, soil and plant roots, with the aim of using the data to reconstruct global patterns in fungal community structure and to infer processes in fungal community assembly. For pilot data collected through air sampling, see Abrego et al. (2018) and Ovaskainen et al. (2020), and for methods used for taxonomic assignment of the sequences, see Abarenkov et al. (2018).

The candidate is expected to have some background in molecular methods and/or community ecology, and interest in fungal ecology and systematics.

For more information, contact prof. Otso Ovaskainen (otso.ovaskainen(at)helsinki.fi).

For a postdoctoral researcher, the salary of the successful candidate will be based on level 5 – 6 of the demands level chart for teaching and research personnel in the salary system of Finnish universities. In addition, the appointee will be paid a salary component based on personal performance. The starting salary will be ca. 3300 – 3800 euros/month, depending on the appointee’s qualifications and experience.

The salary for the doctoral candidate position is based on levels 2–4 of the job requirement scheme for teaching and research personnel in the salary system of Finnish universities. In addition, the appointee will be paid a salary component based on personal work performance. Depending on the appointee’s qualifications and experience, the salary is ca EUR 2200–3050 per month (starting salary EUR 2200-2400).

Applications should include the following documents as a single pdf file: motivational letter (max 1 page), CV (max 2 pages) and publication list. Include also contact information of two persons who can provide a reference letter upon request.

Please submit your application using the University of Helsinki Recruitment System via the Apply for the position link. Applicants who are employees of the University of Helsinki are requested to leave their application via the SAP HR portal. The deadline for submitting the application is 1 March 2020.

References
Abarenkov, K., Somervuo, P., Nilsson, H., Kirk, P., Huotari, T., Abrego, N. and Ovaskainen, O. 2018. PROTAX-fungi: a web-based tool for probabilistic taxonomic placement of fungal ITS sequences. New Phytologist 220, 517-525. https://doi.org/10.1111/nph.15301

Abrego, N., Norros, V., Halme, P., Somervuo, P., Ali-Kovero, H. and Ovaskainen, O. 2018. Give me a sample of air and I will tell which species are found from your region – molecular identification of fungi from airborne spore samples. Molecular Ecology Resources 18, 511-524. https://doi.org/10.1111/1755-0998.12755

Ovaskainen,O., Abrego, N., Somervuo, P., Palorinne, I., Hardwick, B., Pitkänen, J.-M., Andrew, N. R., Niklaus, P. A, Schmidt, N. M., Seibold, S., Vogt, J., Zakharov, E. V., Hebert, P. D. N., Roslin, T. and Ivanova, N. V. 2020. Monitoring fungal communities with the Global Spore Sampling Project. Frontiers in Ecology and Evolution 7, 511. https://doi.org/10.3389/fevo.2019.00511

Due date

01.03.2020 23:59 EET

Read the job description at the university homepage

Apply for the postition

Post expires on Saturday February 29th, 2020

Doc­toral Stu­dent, Ef­fects of heavy metals on testic­u­lar dys­gen­esis syn­drome

The University of Helsinki is an international scientific community of 40,000 students and researchers. It is one of the leading multidisciplinary research universities in Europe and ranks among the top 100 international universities in the world.

The Faculty of Veterinary Medicine invites applications for the position of a

DOCTORAL STUDENT

for a period of 4 years, starting in May 2020.

The PhD project “Effects of heavy metals on testicular dysgenesis syndrome” is organized by Helsinki One Health – HOH (https://researchportal.helsinki.fi/en/organisations/helsinki-one-health-hoh) and the Animal Reproduction Science group – ARS (https://researchportal.helsinki.fi/en/organisations/animal-reproduction-…) of the University of Helsinki.

HOH Helsinki One Health is a network organization, led by the Faculty of Veterinary Medicine and cooperated by four other faculties at the University of Helsinki, to co-ordinate research actions within the area of One Health. One Health is a globally emerging concept recognizing that the health of humans and animals is interconnected and that their populations share the essentials of life: the genome, disease causing organisms, health, welfare, and the environment. HOH Helsinki One Health involves different disciplines and professions to work together to resolve emerging health problems concerning human and animal populations worldwide. Please see: https://www.helsinki.fi/en/one-health.

The animal reproduction science group ARS is based at the Department of Production Animal Medicine (https://www.helsinki.fi/en/faculty-of-veterinary-medicine/faculty/depart…) of the Faculty of Veterinary Medicine (https://www.helsinki.fi/en/faculty-of-veterinary-medicine). Unless otherwise agreed, the location of the position is at the Saari estate in Mäntsälä (some 60 kilometres northeast of Helsinki). The project is joint between the University of Helsinki and the University of Veterinary Medicine Hannover / Unit of Reproductive Medicine (https://www.tiho-hannover.de/en/clinics-institutes/clinics/unit-of-repro…), and it aims also for scientific exchange between these two Universities, but not for a double degree.

The project investigates the prevalence of environmental pollutants, especially heavy metals, and their effects on male fertility. The focus is on cell functions of the male sexual organs, especially hormone production and spermatogenesis. The project includes work with male sexual organs, and frozen and fresh semen samples of canine and porcine. If possible, additional species will be included into the project. The methodology includes different types of study designs, e.g., cross-sectional, cohort, and in-vitro study designs.

The testicular dysgenesis syndrome (TDS) is recognized in humans as one of the major causes for the decline in male fertility. Environmental exposures to toxins arising from modern lifestyles and pollutions are the most important risk factors for TDS. Clinical signs of TDS were recently linked to environmental toxins also in canine. Using the dog as a sentinel model for the human will help to gain further understanding into environmental effects on TDS. Using in-vitro models and the pig as an experimental model will help to dig more detailed into the mode of actions.

The duties of a doctoral candidate are to work on her/his own doctoral thesis in the research project and to complete her/his postgraduate studies. The duties can include also teaching and other tasks. Teaching tasks can account for up to 5 % of the annual working time. The duties also include presentation of research results in international conferences and preparation of scientific publications.

What we expect from you

The appointee must hold a suitable second-cycle degree (Master’s degree or equivalent) and demonstrate ability and motivation to perform scientific research. There is no restriction in which field of science the degree was obtained from. The degree can come from the fields of Veterinary medicine, human medicine, translational medicine, environmental health, animal sciences, natural sciences, biotechnology and others. Good English language skills (oral and academic) are required.

Prior knowledge of modern methods in reproductive biology, andrology, molecular biology, biotechnology, toxicology and bioinformatics/statistics as well as a driver’s license are a bonus, but your most important assets are enthusiasm and interest for research, motivation to learn new skills and knowledge, and ability to work independently as an active member of a research team.

Salary and benefits

• The salary is based on the University of Helsinki salary system. For a doctoral student, the monthly starting gross salary is usually about 2200 euros/month and progresses at least when the doctoral student is about half-way finished writing the dissertation.
• Read more about the employee benefits at the University of Helsinki and why the University of Helsinki is an excellent career choice: https://www.helsinki.fi/en/university/working-at-the-university.

Application for the doctoral student position and further information

The application should include the following attachments:
• Application letter describing your interest in scientific research and in this position, prior expertise in the field of research, and names and contact information of 1-2 references
• Curriculum vitae, with possible scientific publications
• Copy of your diploma(s) and transcript records (= printout of the courses you’ve completed during your studies).

Please submit your application, together with the required attachments, through the University of Helsinki Recruitment System via the link Apply for the position. Applicants who are employees of the University of Helsinki are requested to submit their application via the SAP HR portal. The closing date for applications is 1 March, 2020.

Further information

• About the position: project leader Stefan Björkman: stefan.bjorkman(at)helsinki.fi
• On our research groups: HOH – https://www.helsinki.fi/en/one-health; ARS – https://www.facebook.com/AnimalReproductionScience
• About applying and/or technical support: HR Specialist Heidi Kauppinen, heidi.m.kauppinen(at)helsinki.fi, +358504155341

Preliminary information on the right to pursue a doctoral degree

The appointee for a doctoral student position must obtain the right to pursue a doctoral degree at the Faculty of Veterinary Medicine of the University of Helsinki and approval by a suitable doctoral programme by the end of the 6 month probationary period of the employment contract. The appointee prepares the research plan and other necessary documents for these applications in collaboration with the project leader. More information about the application process for the right to pursue a doctoral degree: https://www.helsinki.fi/en/research/doctoral-education/the-application-p…. The doctoral program most suitable is the doctoral program in clinical veterinary medicine (https://www.helsinki.fi/en/research/doctoral-education/doctoral-schools-…).

Due date

01.03.2020 23:59 EET

Read the job description at the university homepage

Apply for the position

Post expires on Sunday March 1st, 2020

Postdoc­toral and/​or PhD po­s­i­tions in cell biology of the en­do­cytic cyto­skel­eton

Helsinki Institute of Life Science, HiLIFE (https://www.helsinki.fi/en/helsinki-institute-of-life-science), is a new life science institute at the University of Helsinki established in 2017 supporting high quality research across campuses and life science faculties. HiLIFE builds on existing strengths, new recruits and partnerships to create an attractive international environment for solving grand challenges in health, food, and environment. It coordinates research infrastructures in life sciences, provides research-based interdisciplinary training and supports researchers within its units and partner faculties. In 2019 HiLIFE has a staff of 600 and budget of 59 M€.

Our lab is located within the HiLIFE unit Institute of Biotechnology, Viikki campus. The Institute of Biotechnology (BI) (https://www.helsinki.fi/en/hilife-institute-of-biotechnology) is an international research unit within the Helsinki Institute of Life Science (HiLIFE) of the University of Helsinki. Research groups at BI conduct research and develop infrastructures in biotechnology and modern biosciences at the highest international level, actively applying the results for the benefit of society.

The Almeida-Souza Lab at HiLIFE invites applications for

Post-doctoral researcher and/or PhD student in cell biology of the endocytic cytoskeleton

We offer you a highly collaborative, supportive and international research environment. The working language of the institute is English. Our research goal is to understand the molecular logic behind the dynamics of the actin cytoskeleton at endocytic sites and how disturbances in this process affect physiology and disease progression.

Projects in the lab involve Super-resolution imaging and analysis, protein biochemistry, CRISPR/Cas9 genome engineering and drug screens. Please look at our webpage for more details (https://www.helsinki.fi/en/researchgroups/endocytic-cytoskeleton-biology). Successful candidates will be able to decide which projects suit best their interests and expertise.

Our lab offers a 3-year fixed-term contract for postdocs and a 4-year fixed-term contract for PhD students. Candidates will be encouraged to apply for their own funding.

We seek motivated individuals willing to contribute positively to the research team and the HiLIFE community at large. Our lab is committed to build an environment where everyone is respected and valued. Importantly, we believe that science should be fun and exciting.

The successful Doctoral and/or Postdoctoral candidates will hold an excellent Master Degree (or equivalent) and/or PhD in Biology with a specialization in Cell Biology and/or Biochemistry. In addition, the Postdoctoral candidate will have a proven record of excellence in the above-mentioned research areas, whereas the Doctoral candidate will have a strong potential for excellence in research. Previous experience with cellular and molecular biology techniques is essential. Experience with super-resolution microscopy and/or protein purification using multiple expression systems is definite plus.

To apply, please submit your application using the University of Helsinki electronic recruitment system by clicking on the Apply link below. Internal applicants (i.e., current employees of the University of Helsinki) please submit your applications through the SAP HR portal. Upload a single pdf-file containing a one-page cover letter outlining your relevant work experience and motivation to work on our research group, your CV and contact information for 2-3 referees. Please indicate whether you are applying for the PhD student or Postdoc position.

The application deadline is January 6th, 2020, but review of applications will begin immediately and continue until the position is filled.

For informal enquiries, contact leonardo.almeida-souza@helsinki.fi. In case you need technical support with the recruitment system, please contact recruitment(at)helsinki.fi.

The University of Helsinki, founded in 1640, is one of the leading multidisciplinary research universities and ranks among the top 100 international universities in the world. It is currently investing heavily in life sciences research. The University of Helsinki has an international academic community of 40,000 students and staff members, and it offers comprehensive services to its employees, including occupational health care and health insurance, sports facilities, and opportunities for professional development.

Due date

06.01.2020 23:59 EET

Read the jobdescription at the university homepage

Apply for the position

Post expires on Monday January 6th, 2020

Postdoc­toral Re­search­ers in mathematical phys­ics/​prob­ab­il­ity

The University of Helsinki is an international scientific community of 40,000 students and researchers. It is one of the leading multidisciplinary research universities in Europe and ranks among the top 100 international universities in the world. We are an equal opportunity employer and offer an attractive and diverse workplace in an inspiring environment with a variety of development opportunities and benefits.

The Department of Mathematics and Statistics (https://www.helsinki.fi/en/faculty-of-science/faculty/mathematics-and-st…) at the Faculty of Science, is the largest department of mathematical sciences in Finland. The Department of Mathematics and Statistics is the largest university department for mathematical sciences in Finland. The multifaceted research carried out at the Department of Mathematics and Statistics has received the highest points in several evaluations.

The Mathematical Physics research (http://mathstat.helsinki.fi/mathphys/) group led by Professor Antti Kupiainen at the University of Helsinki invites applications for

POSTDOCTORAL RESEARCHER POSITIONS IN MATHEMATICAL PHYSICS /PROBABILITY

Postdoctoral Researchers are sought in the following fields:

-Rigorous Statistical Mechanics and Renormalization Group
-Singular Stochastic PDE’s
-Conformal Field Theory and Liouville Quantum Gravity

The position are available from September 2020 on or earlier if needed.

The positions are funded through the European Research Council (ERC) Advanced Grant
“Quantum Fields and Probability”.

Salary
The overall starting salary will be ca. 3300-3800 €/month, depending on the previous relevant research experience of the candidate.

How to apply
Please submit your application via the University of Helsinki Recruitment System by clicking the Apply for the position button below.

Please attach the following documents as a single pdf file: motivational letter (max 1 page), CV (max 2 pages) and a publication list. Include also contact information of two persons who can provide a reference letter on request.

Review of applications will begin immediately and continue until the positions are filled.

Additional information
For more information, please contact Professor Antti Kupiainen by email: antti.kupiainen@helsinki.fi.

Due date

31.05.2020 23:59 EEST

Read the job description at the university homepage

Apply for the position

Post expires on Sunday May 31st, 2020