HIGH TECH, HUMAN TOUCH FACTS AND FIGURES

Transcription

HIGH TECH, HUMAN TOUCH FACTS AND FIGURES
HIGH TECH,
HUMAN TOUCH
FACTS AND
FIGURES
2014
nanotechnology
information technology
behavioural sciences and
governance
biomedical technology and
technical medicine
geo-information science and
earth observation
UNIVERSITY OF TWENTE
3
UNIVERSITY OF TWENTE
The grand challenges the world will be
facing during the coming decades will
undoubtedly change the global university
landscape too. Today’s students are
tomorrow’s global citizens, professionals
who will contribute to finding solutions for
major social issues in fields like healthcare,
governance, energy and the environment.
As a young and entrepreneurial university
in the Netherlands, the University of Twente
prepares young people for this future. It does
so by offering cutting-edge, appealing and
future-proof education. By being a global
player in technology and social research.
And by creating a thriving campus hot-spot,
as an ecosystem for hundreds of spinoff
companies.
‘High tech, human touch’ implies that we are
continuously on the look-out for unexpected
combinations of research and education,
always with a view to the needs of society.
We therefore cooperate closely with large
companies, SMEs, hospitals and government
organizations, throughout our own region
and elsewhere.
Our unique campus in the Twente region
currently welcomes 9,500 students, and
employs over 3,000 scientists and professional
support staff.
“To stay competitive in this rapidly
changing world, a university
has to show courage and find
combinations previously undreamt
of. In this way, technology can be
a true driver for change, innovation
and progress in society.”
Victor van der Chijs,
President
UNIVERSITY OF TWENTE
4
UNIVERSITY OF TWENTE
5
INSPIRING EDUCATION
Students at the University of Twente learn how to develop a broad perspective and
become highly knowledgeable professionals who are able to combine and translate
their skills into practical applications. One self-evident aspect of this is the importance
of raising people’s awareness of sustainability. As an entrepreneurial university, we
expect our students to be inquisitive and innovative, to internalize knowledge and to
be able to look beyond the confines of their discipline and of their country’s borders.
The Twente Educational Model
In 2013, the University of Twente launched
the Twente Educational Model for
undergraduate education, a radically new
educational model to meet the needs of
today’s students, who are accustomed to
new, rapid methods of learning, interacting
and cooperating.
It offers a modular approach, stimulates
students’ independent acquisition of
knowledge and gives them more scope
to pursue their interests. In this way, the
Twente Educational Model places more
emphasis on a profound and conceptual
understanding of the heart of a discipline
or domain, which is more important than
a factual knowledge of every single aspect
of a given domain. The continuous study
workload and regular feedback require a
high level of student engagement. Training
in collaborative work and presentation
skills takes place ‘on the fly’. Electrical
Engineering students, for example, at
the end of their first year take part in a
competition: which group has built the
best-performing broadcast antenna? For
this, they are offered some modules on the
mathematics and physics involved. It is up
to them, however, to acquire the specific
information they need to build the antenna,
at a fixed and very low budget.
UNIVERSITY OF TWENTE
UNIVERSITY
COLLEGE
TWENTE
In 2013, the University of Twente launched
a truly unique university college: University
College Twente (ATLAS, Academy of
Technology and Liberal Arts & Sciences).
It is the first university college of engineering
sciences in The Netherlands. University
College Twente is all about excellent
education and international ambition. It is
aiming at talented individuals who refuse
to accept easy solutions to complex issues
– ambitious students who want to broaden
their skills so they can handle that level of
complexity.
In line with the Twente Educational Model,
the programme of University College Twente
is centered around problem solving. It is
a fully English-taught BSc programme
with a distinctive thematic approach and
it is entirely at an Honours level. University
College Twente graduates are admitted to
prestigious national and international Master’s
programmes.
In the BSc ‘landscape’ of The Netherlands,
University College Twente occupies a unique
place, because of the engineering approach
that plays a central role in education.
6
UNIVERSITY OF TWENTE
7
UNIVERSITY OF TWENTE
STUDENT ENROLMENT
Total number of enrolled students in 2013 (by domicile):
9,545
Bachelor’s
The Netherlands
Germany
Other countries worldwide
4,410
1,101
186
The Netherlands
Germany
Other countries worldwide
2,980
314
554
Total BSc
5,697
Master’s (incl. Pre-Master’s)
Total MSc
3,848
Degrees Awarded 2012/2013
Undergraduate
Graduate
1,221
1,150
8
UNIVERSITY OF TWENTE
9
UNIVERSITY OF TWENTE
BACHELOR’S
PROGRAMMES
- University College Twente (ATLAS)*
- Advanced Technology*
- Biomedical Technology
- Business & IT
- Civil Engineering
- Communication Studies
- Creative Technology*
- Electrical Engineering*
- European Public Administration*
- Health Sciences
- Industrial Design
- International Business Administration*
- Psychology
- Chemical Engineering
- Industrial Engineering and Management
- Technical Medicine
- Computer Science
- Applied Physics
- Applied Mathematics
- Mechanical Engineering
* This programme is taught in English.
10
UNIVERSITY OF TWENTE
MASTER’S
PROGRAMMES
- Applied Mathematics
- Applied Physics
- Biomedical Engineering
- Business Administration
- Business Information Technology
- Chemical Engineering
- Civil Engineering and Management
- Communication Studies
- Computer Science
- Construction Management and Engineering*
- Educational Science and Technology
- Electrical Engineering
- Embedded Systems*
- Environmental and Energy Management
- European Studies
- Geographical Information Management
and Applications
- Geo-information Science and Earth Observation
- Health Sciences
- Human Media Interaction
- Industrial Design Engineering
- Industrial Engineering and Management
- Mechanical Engineering
- Methodology and Statistics for the Behavioural,
Biomedical and Social Sciences
- Nanotechnology
- Philosophy of Science, Technology and Society
- Psychology**
- Public Administration
- Public Management** (Part-time Programme)
- Risk Management** (Part-time Programme)
- Science Education and Communication**
- Social Systems Evaluation and Survey Research
- Sustainable Energy Technology*
- Systems and Control*
- Teaching in Social Sciences**
- Technical Medicine
- Telematics
* This Master’s programme is the result of close collaboration between
the Technical Universities of Delft and Eindhoven and the University of
Twente. The three universities have joined forces in the 3TU Federation.
** This programme is only taught in Dutch.
11
UNIVERSITY
UNIVERSITYOFOFTWENTE
TWENTE
FACULTIES
The University of Twente includes the following
faculties:
- Behavioural, Management & Social Sciences (BMS)
- Electrical Engineering, Mathematics and Computer
Science (EEMCS)
- Engineering Technology (CTW)
- Geo-Information Science and Earth Observation
(ITC)
- Science and Technology (TNW)
OTHER PROGRAMMES:
Twente Graduate School (TGS) offers an increasing
variety of integrated Master’s and PhD programmes
for outstanding students who are aiming for a career
in scientific research. There are currently about twenty
graduate programmes in different disciplines.
Please visit www.utwente.nl/tgs
for more information
- The Honours programmes of the University of
Twente have a distinctive ‘high tech human touch’
profile, for highly talented, entrepreneurial
and motivated students.
For a full overview, visit
www.utwente.nl/excellentie/en
- ITC (Faculty of Geo-Information Science and Earth
Observation) offers several short courses and
training programmes.
Please visit www.itc.nl
for more information
12
12
UNIVERSITY OF TWENTE
PROFESSIONAL
DOCTORATE IN
ENGINEERING
The University of Twente offers several Professional
Doctorate in Engineering (PDEng) programmes,
for example in Civil Engineering, Energy & Process
Technology and Robotics. The PDENg trainee follows
a two-year post-Master’s designer programme.
PDEng trainees learn how to design high level,
creative and innovative solutions for complex issues
with a multidisciplinary character. Consisting of an
educational component at the university and a period
of practical design work in industry, the programme
combines academic research in an industrial context
with taught modules in a range of related subjects.
More information: www.utwente.nl/pdeng/en
PROFESSIONAL
LEARNING AND
DEVELOPMENT
For managers and professionals in areas such
as Public Administration, Risk Management and
Sustainable Innovation, the University of Twente
offers educational modules and full programmes.
The current programmes not only include part-time
Master’s programmes but also in-company
trainings, Masterclasses and short programmes
in specific sectors.
More information: www.utwente.nl/pld
13
EDUCATION HIGHLIGHTS
UNIVERSITY OF TWENTE
14
UNIVERSITY OF TWENTE
TECHNICAL MEDICINE
HIGH TECH MEDICAL PROFESSIONAL
Technical Medicine is a unique programme
at the University of Twente, recently awarded
‘top-rated programme’ status. It combines
thorough training in medical skills with deep
insight into technology, thus preparing students
for a role in innovative patient care. Thanks to a
recent change in Dutch law, Technical Medicine
graduates are entitled to independently treat
patients. In this way, they are technical experts
as well as doctors: the medical expert now
has a high-tech colleague, who will be able
to introduce new technology to improve the
patient’s health and safety.
www.utwente.nl/tg
15
UNIVERSITY OF TWENTE
EXCELLENT
RESEARCH
The University of Twente sets standards in the field
of new technology and seeks to stimulate change,
renewal and progress in society. Excellence in
research in the fields of nanotechnology, biomedical
engineering and ICT (especially the interfaces
between these domains and their relationship
with governance and behaviour) makes UT
research exceptional. We are active in areas such
as health, water, green energy and security. As an
entrepreneurial university, the University of Twente is
outstanding in the commercialization of knowledge
and expertise for economic and social benefits and in
collaborating with third parties.
RESEARCH
INSTITUTES
The research of the University of Twente is – for the
most part – organized in multidisciplinary research
institutes:
- MESA+ Institute for Nanotechnology
- MIRA Institute for Biomedical Technology
and Technical Medicine
- CTIT Institute for ICT Research in Context
- IGS Institute for Innovation and Governance Studies
- ITC Geo-Information Science and Earth Observation
16
UNIVERSITY OF TWENTE
DOCTORAL DEGREES AWARDED IN 2013
220
RESEARCH FUNDING (IN M€)
2013
DIRECT FUNDING
(national) COMPETITIVE FUNDING
57
CONTRACT RESEARCH
35
Total
SCIENTIFIC OUTPUT 2013
PUBLICATIONS TOTAL
REFEREED PUBLICATIONS
3,463
2,914
ECONOMIC AND SOCIAL IMPACT
TOTAL NUMBER OF SPIN-OFF COMPANIES:
102
900 194
17
UNIVERSITY OF TWENTE
UNIVERSITY RANKINGS
102
170
212
LEIDEN RANKING
TIMES HIGHER EDUCATION SUPPLEMENT (THES)
QS WORLD UNIVERSITY RANKINGS
QS STARS - EXCELLENT SCORE FOR QUALITY OF EDUCATION (FIVE STARS)
330
SHANGHAI WORLD TOP 500 (ACADEMIC RANKING OF WORLD UNIVERSITIES, ARWU)
IMPORTANT AWARDS AND APPOINTMENTS
ICT PERSONALITY AWARD
Prof. Peter Apers
TECHNOLOGY INNOVATION
LEADERSHIP AWARD Frost & Sullivan
Dr Aurel Ymeti
IEEE AWARD
Prof. Herman ten Kate
DAVID A. KARNOFSKY MEMORIAL AWARD
American Society of Clinical Oncology
(ASCO)
Prof. Bob Pinedo
SIMON STEVIN MASTER
Prof. Bram Nauta
PERSONAL GRANTS
AND PRIZES
ERC Starting and Consolidator Grants:
ERC advanced grants:
Spinoza awards:
KNAW memberships:
Scheme-VENI grants:
Scheme-VIDI grants:
Scheme-VICI grants:
14
5
4
6
37
30
15
VENI, VIDI and VICI are grants awarded by the Netherlands
Organisation for Scientific Research (NWO).
18
UNIVERSITY OF TWENTE
JUMP INTO
THE FUTURE,
ELECTRONICS
WILL DESIGN
ITSELF
Unexpected combinations, guts, and ‘team science’
are the three most important characteristics of
the University of Twente’s new DesignLab. It links
experts in the fields of biomedical technology,
nanotechnology and IT to their counterparts in the
social sciences, public and business administration,
as well as to industrial designers. Enabling such
meetings to take place may help to speed up the
process of finding solutions to social challenges.
This also makes DesignLab a new type of discussion
partner for the business sector.
The DesignLab is an international workspace
and meeting space where researchers, students,
entrepreneurs, business developers, government
bodies and artists can join forces to develop creative
applications for new technologies. At the Lab, they
are inspired to find unexpected, creative avenues
of approach to solutions to social and economic
challenges. New concepts and ideas are picked
up and developed in a non-traditional fashion, after
which prototypes can be immediately tested. The
DesignLab brings international and regional parties
together for interdisciplinary innovation projects.
It also provides them with access to the pool of
knowledge and talent that exists at, and around,
the university. In addition, the DesignLab has an
important ambition – to develop new disruptive
technologies, with the latest scientific insights, to
solve the social challenges of our time.
19
RESEARCH HIGHLIGHTS
UNIVERSITY OF TWENTE
20
RESEARCH HIGHLIGHTS
UNIVERSITY OF TWENTE
MESA+ INSTITUTE FOR
NANOTECHNOLOGY
MESA+ Institute for Nanotechnology is a
world leading nanotechnology research
institute. Around 525 researchers focus on new
materials and nanostructures for a wide variety
of ground-breaking applications: for example
lab-on-a-chip systems, sensors and actuators,
optics, solar cells, and quantum computing.
With the MESA+ NanoLab facility sharing
infrastructure, MESA+ has access to 1250
m2 of cleanroom space and state-of-the-art
research equipment. The on-campus High Tech
Factory offers nanotech R&D and production
facilities to small and medium-sized companies.
Nano pill
Lab-on-a-chip systems are introducing
major changes in chemical and medical
diagnostics. At MESA+, systems like these
have been developed for measuring lithium
concentrations in the blood of patients
suffering from bipolar disease. Another
example is a chip that is used to determine
male fertility, easily and comfortably. Future
applications will include a ‘nano pill’ for the
early detection of intestinal cancer, or even
‘organs-on-a-chip’, for medical research.
For a full overview:
www.utwente.nl/mesaplus
21
RESEARCH HIGHLIGHTS
IGS INSTITUTE FOR
INNOVATION
AND GOVERNANCE
STUDIES
IGS conducts multi-disciplinary research and offers
postgraduate research training in the governance and
management of technological and social innovation.
The core research foci involve the co-ordination,
steering and operation of institutions (and networks of
institutions) in both public and private sectors, based
on a multi-level, multi-actor perspective. IGS strives to
combine scientific excellence with relevance for our
stakeholders in the public and private sector.
River care
Dutch rivers will undergo major changes in the
coming decades, in preparation for the anticipated
effects of climate change. Soil, riverbanks and
foreland will change as well. In the context of
the Dutch national RiverCare programme, which
is coordinated by IGS’ Water Engineering and
Management group, all anticipated effects for
the coming ten to fifty years will be thoroughly
researched. This will include both physical and
biological effects, as well as governance issues.
The scientists of the University of Twente are
cooperating with their counterparts at the universities
of Utrecht, Nijmegen, Wageningen and Delft. Using
‘serious gaming’ within the UT Virtual Reality Lab,
the effects are simulated in a virtual river.
For a full overview:
www.utwente.nl/igs
UNIVERSITY OF TWENTE
22
RESEARCH HIGHLIGHTS
UNIVERSITY OF TWENTE
23
RESEARCH HIGHLIGHTS
MIRA INSTITUTE
FOR BIOMEDICAL
TECHNOLOGY
AND TECHNICAL
MEDICINE
MIRA is inspired by the increasing role of
technology in healthcare. Developing new
technology for patients implies a synergetic
combination of fundamental and applied
research with clinical practice. Examples
are rehabilitation research, technology for
better diagnostics and care, controlled
drug delivery and tissue engineering.
MIRA cooperates closely with academic
hospitals and spin-off companies.
ExoSkeleton LOPES
The LOPES robotic walking device (Lower
extremity Powered ExoSkeleton), developed
at the University of Twente, is specially
designed for patients who have survived a
stroke and, as a result, still have problems
walking. The robot supports patient’s gait,
automatically recognizing the level of support
needed. During the training programme,
the level of support will gradually diminish
until the patient can walk entirely unaided
once again. LOPES is already used by top
rehabilitation centres in the Netherlands. The
concept of measuring the patient’s brain
signals and linking these to the instructions
given to the robot is a promising new step in
this field of research.
For a full overview:
www.utwente.nl/mira
UNIVERSITY OF TWENTE
24
RESEARCH HIGHLIGHTS
UNIVERSITY OF TWENTE
25
RESEARCH HIGHLIGHTS
CTIT INSTITUTE FOR ICT
RESEARCH IN CONTEXT
UNIVERSITY OF TWENTE
26
RESEARCH HIGHLIGHTS
UNIVERSITY OF TWENTE
CTIT is the largest academic research
institute in the Netherlands – and one of the
largest in Europe – in the field of ICT and
ICT applications. CTIT is characterized by
its ‘ICT Research in Context’ approach, in
which research groups work together on
contemporary technological, economic and
social challenges. Multidisciplinary research
is key, not only between technical disciplines
such as computer science, electrical
engineering and mathematics, but also
between these disciplines and the behavioural
and social sciences.
Robot acquires social skills
The next stage in robotics research involves
their successful interaction with humans. They
will acquire social skills for future applications,
such as home care for the elderly. Can robots
interpret human facial expressions or speech,
for example, and respond to human needs?
Several CTIT groups are working on robotics,
both on the mechatronics involved and on
interactions with human beings. One such
project (which includes partners throughout
Europe) involves the use of a social robot to
guide visitors through museums or zoos.
For a full overview:
www.utwente.nl/ctit
27
RESEARCH HIGHLIGHTS
ITC FACULTY OF
GEO-INFORMATION
SCIENCE AND
EARTH OBSERVATION
ITC is recognized throughout the world
for its achievements in teaching, research
and capacity development in the field
of geoinformation science and earth
observation. The ITC Research Programme
addresses problems related to the
management of space and resources, as
well as those related to the provision of
relevant, timely, and reliable geospatial
information, by conducting demand-driven
research projects.
Helping small farmers
Remote sensing techniques, using
satellites and drones, can help
economies in the poorest areas in
the world. Detailed information about
cropland and soil, for example, can
help farmers to improve their yields,
and general quality of life. A project
funded by the Bill and Melinda Gates
Foundation, and led by ITC’s Rolf de By,
will investigate the full potential of these
technologies. In this STARS project, ITC
is cooperating with partners in Africa,
Asia and the United States.
For a full overview:
www.utwente.nl/itc
UNIVERSITY OF TWENTE
28
RESEARCH HIGHLIGHTS
UNIVERSITY OF TWENTE
29
UNIVERSITY OF TWENTE
30
UNIVERSITY OF TWENTE
ENTREPRENEURIAL PARTNER
Always with a view to the needs of society, the
University of Twente cooperates closely with
universities, companies and governmental
organizations in its immediate area, elsewhere in the
country, and throughout the world. We feel that one
of our prime responsibilities is to have a beneficial
economic impact on the Twente region. Over three
decades, around 900 spin-off companies have been
established, many of which are still active partners of
the university.
KENNISPARK TWENTE
AS A KNOWLEDGE
NETWORK AND
INNOVATION CAMPUS
Kennispark Twente was founded by the
University of Twente, together with the
province of Overijssel, the municipality of
Enschede, the Twente region, and the Saxion
University of Applied Sciences. Its purpose
is to transform innovations into tangible
economic activity and to boost innovative
approaches and the knowledge infrastructure
in the Twente region. Here, knowledge-driven
companies can continue to develop their
business, and prosper.
Kennispark Twente gives both young and more
seasoned entrepreneurs access to financing,
talented staff, business development support
programmes, new concepts and housing.
Additionally, they can make use of the research
facilities of the University of Twente. In this
unique way, scientists and entrepreneurs have
joined forces to bring about innovation. Even
the physical surroundings are being altered
to include both physical and virtual meeting
places for scientists and entrepreneurs.
At the end of 2013, Kennispark Twente was
awarded the accolade of Best Business Park
in the Netherlands.
31
UNIVERSITY OF TWENTE
PARTNERSHIPS
The University of Twente works closely with
universities, knowledge institutions and
multinationals from all over the world. We are
a member of the 3TU Federation, a strategic
partnership of the three leading universities of
technology in the Netherlands (Delft University
of Technology, Eindhoven University of
Technology, and the University of Twente).
Together with ten other young and innovative
universities across Europe, the University
of Twente is a member of the European
Consortium of Innovative Universities (ECIU).
In addition to ECIU, we maintain academic
relationships in several target regions around
the world. There are strong ties with top
European research universities such as
Westfälische Wilhelms University Münster
(Germany), KTH Royal Institute of Technology,
Lund University (Sweden) and Warsaw
University (Poland). In Asia, we cooperate
with different universities in China, Indonesia
and India. Furthermore, we collaborate
with various Dutch hospitals and leading
international companies such as ASML,
Boeing, Google, Microsoft, Unilever, Akzo
Nobel, Shell, Siemens, BP and Philips.
Alumni
The University of Twente strives to maintain
a strong relationship with its alumni (who
currently number more than 40,000) around
the world. We consider each of our graduates
to be ambassadors of the university, and we
wish to keep in close contact with them.
We also support a range of activities and
services for alumni both in the Netherlands
and elsewhere, which provide opportunities
for keeping up to date with news from the
University of Twente, meeting one another,
and expanding professional networks.
OVER 40,000
ALUMNI ACROSS
THE WORLD
ADDIS ABABA
201
BRUSSELS
146
KATHMANDU
136
NAIROBI
129
LONDON
128
SAN FRANCISCO
127
JAKARTA
123
BERLIN
107
TEHRAN
93
ACCRA
90
BEIJING
88
COCHABAMBA 84
KAMPALA
PARIS
80
74
SINGAPORE 71
32
UNIVERSITY OF TWENTE
THE NETHERLANDS
27970
NORTHERN AMERICA
ASIA
3363
842
989
SOUTHERN AMERICA
OCEANIA
3023
2145
AFRICA
EUROPE
EXCL. THE NETHERLANDS
0
1-10
11-50 51-100 101-200 200+
33
UNIVERSITY OF TWENTE
ORGANIZATION
STAFF COMPLEMENT
2013(IN FTE)
FLOW OF FUNDS - BUDGET (M€)
FTE
FTE%
188,6
Direct government funding
2013
Indirect national government funding
46,3
Indirect international government funding
20,7
TOTAL
2013
Direct government funding
Commercial funding
24,8
Tuition fees
2,689
19,2
Other
ACADEMIC*
19,2
Total
1,573
188,6
Indirect national government funding
46,3
Indirect international government funding
20,7
SUPPORT
Commercial funding
24,8
1,116
Tuition fees
19,2
Other
19,2
Total
318,8
318,8
2013
59%
41%
* Academic, incl. PhD
ACADEMIC
MALE/FEMALE RATIO
TOTAL
ACADEMIC
SUPPORT
1,728 1,313
1,233
71%
PERCENTAGE FOREIGN STAFF
DUTCH
FOREIGN
2,382
659
22%
SUPPORT
495
602
711
29%
46%
54%
CAMPUS
Area
Student Apartments
Cultural Associations
Sports Associations
146 hectares (360 acres)
2125
19
38
34
UNIVERSITY OF TWENTE
CAMPUS
The campus of the University of Twente is an
international hot spot: a meeting place for students,
for scientists with a multidisciplinary focus and
for companies and governments in their quest for
knowledge. The campus buildings are located on
an impressive, verdant estate, in the municipality
of Enschede. The scenery is diverse: meadows,
water, landscaped gardens and extensive areas of
woodland. Scattered around the campus are stateof-the-art research and educational facilities. But
the campus is also a place to live, play sports and
relax. In summer, the campus is a popular spot for
walks and other forms of leisure. It offers a wide
range of facilities, such as student and staff housing,
sports halls and grounds, swimming pools, shops,
meditation and prayer facilities, medical care, bars,
restaurants and even an open air theatre.
The campus is also a venue for events like “Create
Tomorrow”, the world’s largest student think tank,
and the “Batavierenrace”, the world’s largest student
relay event. The campus is within cycling distance of
the bustling centre of Enschede, which also offers
many cultural attractions as well as places of worship.
LIVING LAB
Utilizing our campus as a “living lab” means that
we use it as a test and demonstration facility for the
latest technology originating from our university and
beyond. Some examples of this are the development
of a smart grid to monitor and regulate the supply
of energy, and the development of a state-of-the-art
water treatment system. In this way we are not only
improving our campus, but we are also assisting our
research efforts.
35
University of Twente
P.O. Box 217
7500 AE Enschede
The Netherlands
P +31 53 489 9111
E [email protected]
www.utwente.nl/en
www.twitter.com/utwente
www.facebook.com/utwente
www.utwente.nl/linkedin