Are You Member Of This University

Universität Wien logo

Universität Wien

University Web Ranking

World Rank : 145

Country Rank : 1 (Web Ranking in austria)


Founded in 1365. Universität Wien is a Public higher education university located in vienna, vienna, austria, europe. Internationally Universität Wien university ranked 145 in the world. It has ranked 1 in austria. This 654 years old higher education university admission process is Not reported. It provides admission to Men and Women (coed) and Yes, international applicants are welcome to apply for admission.

General Information

Acronym : UNIVIE

Founded : 1365

Areas of Studies

Diploma Bachelor Master Doctorate
Arts & Humanities check_box_outline_blank check_box_outline_blank check_box_outline_blank check_box_outline_blank
Business & Social Sciences check_box_outline_blank check_box_outline_blank check_box_outline_blank check_box_outline_blank
Language & Cultural check_box_outline_blank check_box_outline_blank check_box_outline_blank check_box_outline_blank
Medicine & Health check_box_outline_blank check_box_outline_blank check_box_outline_blank check_box_outline_blank
Engineering check_box_outline_blank check_box_outline_blank check_box_outline_blank check_box_outline_blank
Science & Technology check_box_outline_blank check_box_outline_blank check_box_outline_blank check_box_outline_blank

Important : (Yes) marked indicates university may be offering any one or all degrees such as PreBachelor, Bachelor, Master or Doctoral degree in that area of studies.
The above shown matrix is only the indicative and it may or may not be up-to-date or complete. Please contact or visit university official website for the complete information regarding areas of studies and the currently offered courses

Size And Profile

Control Type : Public

Entity Type : Non-Profit

Facilities And Services

Library : Yes

Housing : Not reported

Usefult Links

Website Link : University Website Link

Wikipedia Article : Universität Wien Wikipedia Article

Social Media

Universität Wien official Facebook page for social networking

Universität Wien official Twitter page for news updates and micro-blogging


Instagram or Flickr
Universität Wien official Instagram or Flickr page for photos

Youtube or Vimeo
Universität Wien official Youtube or Vimeo channel for videos

Online Courses


Open Education

University Latest News

New Electron Spectroscopy Method Pushes Limits of Nanospectroscopy  AZoNano

To better understand advanced materials such as graphene nanostructures and enhance them for devices in opto-, nano-, and quantum-technology, it is ...

Tue, 13 Aug 2019 07:00:00 GMT
The Clash Of Human Rights Ideas: Between Universalism And Relativism – Analysis  Eurasia Review

By Nargiz Hajiyeva*. Human rights from the prism of universalism. After the outbreak of the Second World War, maintaining and in particular, providing a ...

Fri, 12 Apr 2019 07:00:00 GMT
Playfully discover atom manipulation  EurekAlert

The team of Toma Susi at the University of Vienna uses an electron microscope to manipulate strongly bound materials with atomic precision. Since the ...

Mon, 08 Jul 2019 07:00:00 GMT
How to trick electrons to see the hidden face of crystals  EurekAlert

The 3D analysis of crystal structures requires a full 3D view of the crystals. Crystals as small as powder, with edges less than one micrometer, can only be ...

Thu, 25 Jul 2019 07:00:00 GMT
When the pigeon and the letter do not travel together  EurekAlert

In standard communication the pigeon always carries the message; the information is linked to a physical entity/particle. Counter to intuition, in a new ...

Tue, 23 Jul 2019 07:00:00 GMT
Engineering single-atom dynamics with electron irradiation  Science Advances

Atomic engineering is envisioned to involve selectively inducing the desired dynamics of single atoms and combining these steps for larger-scale assemblies.

Fri, 17 May 2019 07:00:00 GMT
Photonic quantum technology for quantum computing, data protection and fundamental quantum science  Open Access Government

The Quantum Information Science and Quantum Computation group at the University of Vienna, Austria, uses single quanta of light to explore fascinating ...

Mon, 09 Jul 2018 07:00:00 GMT
Articles by Ruediger Frank  38 North

Ruediger (Rudiger) Frank is a Professor of East Asian Economy and Society at the University of Vienna and Head of its Department of East Asian Studies with ...

Thu, 08 Jun 2017 18:08:40 GMT
Scientists gain new insights into the mechanisms of cell division  EurekAlert

Mitosis is the process by which the genetic information encoded on chromosomes is equally distributed to two daughter cells, a fundamental feature of all life on ...

Thu, 11 Jul 2019 07:00:00 GMT
Tungsten as interstellar radiation shielding?  EurekAlert

A boiling point of 5900 degrees Celsius and diamond-like hardness in combination with carbon: tungsten is the heaviest metal, yet has biological functions ...

Tue, 09 Jul 2019 07:00:00 GMT
The colour of numbers: visions of our mathematical universe  The Guardian

A gallery of mathematical images from Visions of Numberland, the new colouring book by Edmund Harriss and me. Alex Bellos. Association of British Science ...

Mon, 01 May 2017 07:00:00 GMT
Frontiers forms open access publishing agreement with the University of Vienna  Science Business

Under the terms of the Open Access Publishing Framework Agreement for Austrian Research Performing and Research Funding institutions, agreed between ...

Thu, 04 Jan 2018 08:00:00 GMT
Symphony of genes  EurekAlert

One of the most exciting discoveries in genome research was that the last common ancestor of all multicellular animals - which lived about 600 million years ago ...

Mon, 05 Aug 2019 07:00:00 GMT
From Japanese basket weaving art to nanotechnology with ion beams  EurekAlert

The properties of high-temperature superconductors can be tailored by the introduction of artificial defects. An international research team has succeeded in ...

Thu, 01 Aug 2019 07:00:00 GMT
New methods for exploiting quantum information in photons  SciTech Europa

The Quantum Information Science and Quantum Computation Lab at the University of Vienna is unravelling new ways to encode, manipulate, and detect ...

Fri, 01 Jun 2018 07:00:00 GMT
Antidepressants can reduce the empathic empathy  EurekAlert

Depression is a disorder that often comes along with strong impairments of social functioning. Until recently, researchers assumed that acute episodes of ...

Tue, 18 Jun 2019 07:00:00 GMT
The ancestor of the great white shark  EurekAlert

Mackerel sharks are a group consisting of some of the most iconic sharks we know, including the mako shark, the great white shark and Megalodon, the biggest ...

Mon, 08 Jul 2019 07:00:00 GMT
Umbrella Clauses In Investment Arbitration - International Law - Turkey  Mondaq News Alerts

The obligations observance clauses, namely, umbrella clauses, are aimed to elevate contractual and other commitments of host states under an investment ...

Thu, 28 Sep 2017 07:00:00 GMT
Ganymede's Subsurface Ocean is Like a Club Sandwich  Universe Today

Moons with subsurface oceans are all the rage these days. There's Europa, Titan, and just recently Enceladus joined the short list of moons that likely harbor ...

Thu, 01 May 2014 07:00:00 GMT
How do atoms vibrate in graphene nanostructures?  EurekAlert

Researchers from the University of Vienna, the Advanced Institute of Science and Technology in Japan, the company JEOL and La Sapienza University in Rome ...

Mon, 12 Aug 2019 07:00:00 GMT
Quantum computing with graphene plasmons  EurekAlert

A novel material that consists of a single sheet of carbon atoms could lead to new designs for optical quantum computers. Physicists from the University of ...

Mon, 06 May 2019 07:00:00 GMT
Stereodivergent synthesis of 1,4-dicarbonyls by traceless charge–accelerated sulfonium rearrangement  Science Magazine

Compounds with adjacent carbons sandwiched between two carbonyl (C=O) centers turn up frequently in organic chemistry. When these central carbons each ...

Fri, 17 Aug 2018 07:00:00 GMT
Researchers discover facile method for introduction of fluorine atoms into organic molecules

Chemists in Vienna find a method to replace hydrogen with fluorine in organic molecules. The vast majority of pharmaceuticals employed in the treatment of ...

Wed, 06 Mar 2019 08:00:00 GMT
Marmoset monkeys expect the melody's closing tone  EurekAlert

In speech and music, words and notes depend on each other. Humans are highly sensitive to such dependencies, but the evolutionary origins of this capacity ...

Wed, 19 Dec 2018 08:00:00 GMT
Buckyball sandwiches  Science Advances

Two-dimensional (2D) materials have considerably expanded the field of materials science in the past decade. Even more recently, various 2D materials have ...

Fri, 09 Jun 2017 07:00:00 GMT
For a longer battery life: Pushing lithium ion batteries to the next performance level  EurekAlert

Conventional lithium ion batteries have reached performance limits. Freddy Kleitz from the University of Vienna and international colleagues have developed a ...

Thu, 13 Dec 2018 08:00:00 GMT
In dangerous fungal family's befriending of plants, a story of loss  University of Wisconsin-Madison

If Lewis Carroll had described in detail the mushroom Alice nibbles in Wonderland to shrink and grow to her rightful size, he might have noted a scarlet cap ...

Fri, 28 Sep 2018 07:00:00 GMT
The Origin Of The Newspaper  Science 2.0

In the late 16th century, two brothers from the illustrious Fugger merchant family had news from all over the world sent to them in Augsburg by mail.

Mon, 31 Oct 2016 07:00:00 GMT
Ancient genomes document multiple waves of migration in Southeast Asian prehistory  Science Magazine

The past movements and peopling of Southeast Asia have been poorly represented in ancient DNA studies (see the Perspective by Bellwood). Lipson et al.

Fri, 06 Jul 2018 07:00:00 GMT
Experimental verification of an indefinite causal order  Science Advances

Investigating the role of causal order in quantum mechanics has recently revealed that the causal relations of events may not be a priori well defined in quantum ...

Fri, 24 Mar 2017 07:00:00 GMT
Faster than allowed by quantum computing?  EurekAlert

Quantum computers are more powerful than classical computers since they work with coherent ''quantum bits'' instead of ordinary zeroes and ones. But could ...

Fri, 01 Feb 2019 08:00:00 GMT
One step closer to complex quantum teleportation  EurekAlert

For future technologies such as quantum computers and quantum encryption, the experimental mastery of complex quantum systems is inevitable. Scientists ...

Fri, 02 Nov 2018 07:00:00 GMT
The evolution of bird-of-paradise sex chromosomes revealed  EurekAlert

Birds-of-paradise are a group of songbird species, and are known for their magnificent male plumage and bewildering sexual display. Now, an international ...

Mon, 01 Apr 2019 07:00:00 GMT
Scientific excellence and social relevance are two sides of the same coin  Times Higher Education (THE)

Get a month's unlimited access to THE *content* online. Just register and complete your career summary. Registration is free and only takes a moment.

Thu, 06 Sep 2018 07:00:00 GMT
University of Vienna - Universität Wien - International Legal Studies  LLM GUIDE

The LL.M. in International Legal Studies at the University of Vienna Law School aims at deepening the knowledge of fundamental structures and specific issues ...

Sat, 23 Jul 2016 22:44:02 GMT
How Should I Label Log Scales in Charts and Graphs?  Forbes

In “When Should I Use Logarithmic Scales in My Charts and Graphs”, I showed the revenues of the top 60 Forbes 500 companies using both linear and ...

Wed, 25 Jan 2012 08:00:00 GMT
With the Wrath of a Serpent: The Propagation of Gudari Myо̄о̄ Iconography  Buddhistdoor Global

Manifestations of Kundali Vidyaraja in Japanese Buddhism.

Fri, 21 Sep 2018 07:00:00 GMT
Response to Lieberman on “Monkey vocal tracts are speech-ready”  Science Advances

We thank P. Lieberman for his technical comment, and we are pleased that he accepts our data, methods, and results and agrees with our main conclusion: that ...

Fri, 07 Jul 2017 07:00:00 GMT
Re-inventing the hook  EurekAlert

The bending of a hook into wire to fish for the handle of a basket is surprisingly challenging for young children under eight years of age. Now cognitive biologists ...

Thu, 08 Nov 2018 08:00:00 GMT
RNA microchips  EurekAlert

Ribonucleic acid (RNA) is, along with DNA and protein, one of the three primary biological macromolecules and was probably the first to arise in early life forms.

Tue, 06 Nov 2018 08:00:00 GMT
The Forum, Karl Kraus: Austria's Fearless Satirist  BBC News

Rajan Datar talks about the Viennese satirist Karl Kraus and the end of the Austro-Hunagrian empire with Dr. Katharina Prager, Dr. Simon Ganahl and Dr. Ari ...

Tue, 16 Oct 2018 07:00:00 GMT
Quantum physicists achieve entanglement record  EurekAlert

Entanglement is of central importance for the new quantum technologies of the 21st century. A German-Austrian research team is now presenting the largest ...

Fri, 13 Apr 2018 07:00:00 GMT
Monkey vocal tracts are speech-ready  Science Advances

For four decades, the inability of nonhuman primates to produce human speech sounds has been claimed to stem from limitations in their vocal tract anatomy, ...

Fri, 09 Dec 2016 08:00:00 GMT
Statistical Abracadabra: Making Sex Differences Disappear  Psychology Today

Sexual diversity researchers sometimes focus on the ways men and women differ in their affects, behaviors, and cognitions. There are many reasons for this.

Wed, 02 Dec 2015 08:00:00 GMT
Quantum optical rotatory dispersion  Science Advances

The phenomenon of molecular optical activity manifests itself as the rotation of the plane of linear polarization when light passes through chiral media.

Wed, 05 Oct 2016 07:00:00 GMT
Decoupling of microbial carbon, nitrogen, and phosphorus cycling in response to extreme temperature events  Science Advances

Predicted changes in the intensity and frequency of climate extremes urge a better mechanistic understanding of the stress response of microbially mediated ...

Wed, 03 May 2017 07:00:00 GMT
Precise stellar surface gravities from the time scales of convectively driven brightness variations  Science Advances

A significant part of the intrinsic brightness variations in cool stars of low and intermediate mass arises from surface convection (seen as granulation) and ...

Fri, 01 Jan 2016 08:00:00 GMT
Quantum physics enables revolutionary imaging method  EurekAlert

Researchers from the Institute for Quantum Optics and Quantum Information, the Vienna Center for Quantum Science and Technology, and the University of ...

Thu, 28 Aug 2014 07:00:00 GMT
Foster tadpoles trigger parental instinct in poison frogs  EurekAlert

Parental care is widespread in the animal kingdom. Poison frogs are also known to be dedicated parents. They pick up their tadpoles after they hatch and ...

Wed, 20 Sep 2017 07:00:00 GMT
New fungus found to cause cankers and declines in pistachio trees in Sicily, Italy  EurekAlert

Since 2010, pistachio farmers from Sicily have been reporting a disease on the trees, characterised by cankers and declines, sometimes leading to the collapse ...

Wed, 19 Sep 2018 07:00:00 GMT
Metallosphaera sedula (3 of 3) [image]  EurekAlert

These are microspheroids containing mostly aluminium and chlorine overgrow the mineral surface of synthetic Mars regolith. These microspheroids can only be ...

Tue, 17 Oct 2017 13:56:13 GMT
The Origins of Voodoo, the Misunderstood Religion  Ancient Origins

In A.D. 64, a great fire broke out in Rome for six days, and devastated much of the city. According to the writer Tacitus, “Nero fastened the guilt and inflicted the ...

Tue, 21 Apr 2015 07:00:00 GMT
Systematic Analysis of Human Protein Complexes Identifies Chromosome Segregation Proteins  Science Magazine (subscription)

Chromosome segregation and cell division are essential, highly ordered processes that depend on numerous protein complexes. Results from recent RNA ...

Fri, 30 Apr 2010 07:00:00 GMT
Doc2b Is a High-Affinity Ca2+ Sensor for Spontaneous Neurotransmitter Release  Science Magazine (subscription)

Synaptic vesicle release occurs in different phases that can be tightly coupled to action potentials (synchronous), immediately following action potentials ...

Fri, 26 Mar 2010 07:00:00 GMT
Murine Leukemia Virus Uses NXF1 for Nuclear Export of Spliced and Unspliced Viral Transcripts  Journal of Virology

Intron-containing mRNAs are subject to restricted nuclear export in higher eukaryotes. Retroviral replication requires the nucleocytoplasmic transport of both ...

Wed, 29 Jan 2014 08:00:00 GMT
Loki's Castle [image]  EurekAlert

Here the Loki Archaeota were discovered: on the seabed at the Mid-Atlantic Ridge near the hydrothermal vents Loki's Castle.

Wed, 28 Sep 2016 15:18:38 GMT
Structure of the Anaphase-Promoting Complex/Cyclosome Interacting with a Mitotic Checkpoint Complex  Science Magazine (subscription)

Once all chromosomes are connected to the mitotic spindle (bioriented), anaphase is initiated by the protein ubiquitylation activity of the anaphase-promoting ...

Mon, 11 Mar 2019 21:28:31 GMT
A system of check and balances in the blood  EurekAlert

Hematopoietic Stem Cells (HSCs) give rise to blood and immune cells of the body, and are therefore essential for our survival. The group of Manuela Baccarini ...

Thu, 24 May 2018 07:00:00 GMT
Fullerene Layer [image]  EurekAlert

This is a scanning transmission electron microscope image of a fullerene layer between two graphene sheets. Due to the motion of the fullerenes at the edge, ...

Wed, 14 Jun 2017 14:03:52 GMT
The genome of the seagrass Zostera marina reveals angiosperm adaptation to the sea

Whole-genome sequencing of the seagrass Zostera, representing the first marine angiosperm genome to be fully sequenced, provides insight into the ...

Wed, 27 Jan 2016 08:00:00 GMT
dot.Rory: Spinvox investors got £600 from Nuance deal  BBC News

A couple of weeks ago, the American speech-recognition firm Nuance paid $102.5m - around £64m - for the British voice-to-text firm Spinvox, and we speculated ...

Tue, 12 Jan 2010 08:00:00 GMT
Debt, Kant, and cant  FT Alphaville

One may think that this retreat from game theory is motivated by some radical-left agenda. Not so. The major influence here is Immanuel Kant, the German ...

Mon, 16 Feb 2015 08:00:00 GMT
#InquirerSeven lesser known Filipino heroines

We've all heard of the great female Filipino heroes Melchora Aquino, Gabriela Silang, Marcela Agoncillo, and Gregoria de Jesus. But there are far more Filipino ...

Sat, 27 Aug 2016 07:00:00 GMT
What flowers looked like 100 million years ago  EurekAlert

Flowering plants with are by far the most diverse group of plants on Earth. Flowering plants arose only about 140 million years ago, but since then have ...

Wed, 02 Aug 2017 07:00:00 GMT
FAST FACTS: The life and legacy of Apolinario Mabini  Rappler

Learn more about the man who helped shape the young Philippine Republic and inspired Filipinos to fight for independence.

Wed, 23 Jul 2014 07:00:00 GMT
Hydrogen powers important nitrogen-transforming bacteria  EurekAlert

An international team of scientists led by Holger Daims, a microbiologist at the University of Vienna, has now shown that nitrite-oxidizing bacteria can use ...

Fri, 29 Aug 2014 07:00:00 GMT
Right timing is crucial in life  EurekAlert

The non-biting marine midge Clunio marinus lives along Europe's tide-shapen coasts, where precise timing is of existential importance: Reproduction and ...

Tue, 22 Nov 2016 08:00:00 GMT
R You Ready for R?  New York Times Blogs

Passion runs high for the R programming language, which is changing the face of data analysis in business and academia.

Thu, 08 Jan 2009 08:00:00 GMT
King penguins may be on the move very soon  EurekAlert

More than 70 percent of the global King penguin population, currently forming colonies in Crozet, Kerguelen and Marion sub-Antarctic islands, may be nothing ...

Mon, 26 Feb 2018 08:00:00 GMT
Graphene encapsulation provides unprecedented view of the diffusion and rotation of fullerene molecu  EurekAlert

Scientists at the University of Vienna have created a new structure by encapsulating a single layer of fullerene molecules between two graphene sheets.

Wed, 14 Jun 2017 07:00:00 GMT
Algerian feminism and the long struggle for women's equality  Newslaundry

Muslim women are often criticised for their lack of political involvement, but Algerian women have embraced both anti-colonial and feminist movements.

Tue, 04 Oct 2016 07:00:00 GMT
Ravens attribute visual access to unseen competitiors  EurekAlert

Ravens anticipate what other ravens can see, cognitive biologists Thomas Bugnyar and Stephan Reber of the University Vienna found out in collaboration with ...

Tue, 02 Feb 2016 08:00:00 GMT
Merzbacher Lake – Ak-Su, Kyrgyzstan  Atlas Obscura

Discover Merzbacher Lake in Ak-Su, Kyrgyzstan: Glacial lake that mysteriously empties itself every year.

Fri, 07 Jun 2013 05:46:40 GMT
Quantum causal relations: A causes B causes A  EurekAlert

A deeply rooted concept in everyday life is causality; the idea that events in the present are caused by events in the past and, in turn, act as causes for what ...

Tue, 02 Oct 2012 07:00:00 GMT
Accelerating climate change exerts strong pressure on Europe's mountain flora  EurekAlert

A pan-European study published in Science shows that mountain plants across the continent are moving to higher altitudes. The paper is based on detailed ...

Thu, 19 Apr 2012 07:00:00 GMT
Surprise from the deep ocean  EurekAlert

The microorganisms Archaea existed hundreds of millions of years before the more complex cell structures of Eukaryotes developed that gave rise to ...

Thu, 07 May 2015 07:00:00 GMT

Registered Members

Are You Member Of This University

View All Universities Of World 2019




Arts & Humanities

This university may be offering any one or all degrees such as PreBachelor, Bachelor, Master or Doctoral degree in at least one of the following subjects:
  • Applied Arts
  • Classics
  • Design
  • Education
  • Fine Arts
  • History
  • Literature
  • Museum Studies
  • Performing Arts
  • Philosophy
  • Religion and Theology
  • Visual arts
  • Other Arts & Humanities Studies


Business & Social Sciences

This university may be offering any one or all degrees such as PreBachelor, Bachelor, Master or Doctoral degree in at least one of the following subjects:
  • Accounting / Finance
  • Anthropology / Archaeology
  • Business / Commerce / Management
  • Communication and Media Studies
  • Development Studies
  • Economics
  • Geography
  • Law
  • Library and Information Science
  • Physical Education / Sport Science
  • Political and International Studies
  • Social Policy / Public Administration
  • Social Work
  • Sociology / Psychology
  • Tourism / Hospitality
  • Other Business & Social Science Studies


Language & Cultural

This university may be offering any one or all degrees such as PreBachelor, Bachelor, Master or Doctoral degree in at least one of the following subjects:
  • Aboriginal / Indigenous People Studies
  • African Studies
  • American & Caribbean Studies
  • Ancient and Modern Languages
  • Asian Studies
  • English Studies
  • European Studies
  • French Studies
  • Germanic Studies
  • Indian / South Asian Studies
  • Italian Studies
  • Middle Eastern Studies
  • Portugese Studies
  • Russian / Eastern European Studies
  • Spanish Studies
  • Other Language & Cultural Studies


Medicine & Health

This university may be offering any one or all degrees such as PreBachelor, Bachelor, Master or Doctoral degree in at least one of the following subjects:
  • Anaesthesia
  • Anatomy
  • Biomedical Science
  • Dentistry
  • Dermatology
  • Medicine / Surgery
  • Natural / Alternative Medicine
  • Nursing
  • Obstetrics / Gynaecology
  • Optometry / Ophthalmology
  • Orthopaedics
  • Otorhinolaryngology
  • Pediatrics
  • Pathology
  • Podiatry
  • Psychiatry
  • Radiography
  • Speech / Rehabilitation / Physiotherapy
  • Other Medical & Health Studies



This university may be offering any one or all degrees such as PreBachelor, Bachelor, Master or Doctoral degree in at least one of the following subjects:
  • Aeronautical Engineering
  • Agricultural Engineering
  • Architectural Engineering
  • Biomedical Engineering
  • Chemical Engineering
  • Civil and Environmental Engineering
  • Computer and IT Engineering
  • Electronic and Electrical Engineering
  • General Engineering
  • Geological Engineering
  • Industrial Engineering
  • Mechanical / Manufacturing Engineering
  • Mining and Metallurgical Engineering
  • Other Engineering Studies


Science & Technology

This university may be offering any one or all degrees such as PreBachelor, Bachelor, Master or Doctoral degree in at least one of the following subjects:
  • Agriculture / Forestry / Botany
  • Aquaculture / Marine Science
  • Architecture
  • Aviation
  • Biology / Biochemistry / Microbiology
  • Chemistry
  • Computer / Information Technology
  • Energy / Environmental Studies
  • Food Science
  • Geology
  • Mathematics / Statistics
  • Multimedia
  • Neuroscience
  • Pharmacy / Pharmacology
  • Physics
  • Textiles and Fibre Science
  • Zoology / Veterinary Science
  • Other Science & Technology Studies

Share On Facebook Share On Twitter Share On Google Share On Linkedin

About Us - Disclamer - Privacy Policy - Contact Us