Blog from September, 2012

Omidyar Fellowship Recruitment

The Omidyar Postdoctoral Fellowship at the Santa Fe Institute offers:

• transdisciplinary collaboration with leading researchers worldwide

• up to three years in residence in Santa Fe, New Mexico

• discretionary research and collaboration funds

• a structured leadership training program

• unparalleled intellectual freedom

Deadline: 1 November 2012. 

 Apply at http://www.santafe.edu

The Omidyar Fellowship at the Santa Fe Institute is unique among postdoctoral appointments. The Institute has no formal programs or departments. Research is collaborative and spans the physical, natural, and social sciences. Most research is theoretical and/or computational in nature, although it may include an empirical component. SFI typically has 15 Omidyar Fellows and postdoctoral researchers, 12 resident faculty, 100 external faculty, and 250 visitors per year. Descriptions of the research themes and interests of the faculty and current Fellows can be found at http://www.santafe.edu/research

Requirements include a Ph.D. in any discipline (or expect to receive one by September 2013), an exemplary academic record, strong quantitative and computational skills, a proven ability to work  both independently and collaboratively, a demonstrated interest in multidisciplinary research and evidence of the ability to think outside traditional paradigms. The Santa Fe Institute is an equal opportunity employer, and women, veterans, and members of underrepresented groups are especially encouraged to apply.  U.S. citizenship is not a requirement.

The *SANTA FE INSTITUTE *is a private, independent, multidisciplinary research and education center. SFI seeks to catalyze new collaborative, multidisciplinary research; to break down the barriers between traditional disciplines; to spread its ideas and methodologies to other institutions; and to encourage the practical application of its results. The Omidyar Fellowship at the Santa Fe Institute is made possible by a gift from Pierre and Pam Omidyar.

For additional information or assistance, please email ofellowship at santafe dot edu or fax 505-982-0565

Barbara Kimbell 
Santa Fe Institute

Faculty Opening in IEMS at Northwestern

APPLICATIONS INVITED FOR A FACULTY POSITION AT NORTHWESTERN UNIVERSITY

 We invite applications for one full-time, tenure-track faculty appointment at the assistant or associate professor level to begin September 2013. Applicants should hold an earned Ph.D. or be near completion of their doctoral studies with demonstrated research potential in healthcare engineering and strong methodological background in industrial engineering, operations research or analytics. Industrial experience is desirable; a strong commitment to rigorous and relevant research is essential.

The Department offers an undergraduate program, a Ph.D. program, a full-time professional master’s degree in analytics and a part-time professional master’s degree in engineering management. Both the undergraduate and graduate programs have been consistently ranked among the top ten by US News & World Report.

Applications must be submitted electronically to www.iems.northwestern.edu/career/

Materials to be uploaded include a cover letter and a curriculum vitae detailing educational background, research and work experience. Applicants at the assistant professor level should also include a statement of their current and future research program. Candidates should also provide letters of recommendation from three references to be mailed or e-mailed directly to the address below. To receive full consideration, all materials should be received by December 31, 2012, but earlier application is encouraged.

Chair, Faculty Recruiting Committee | Department of Industrial Engineering and Management Sciences | Northwestern University

2145 Sheridan Road, Room C210 | Evanston, IL 60208-3119

facultysearch@iems.northwestern.edu

Faculty Position in Operations Management

The University of Texas at Dallas

Naveen Jindal School of Management

The Naveen Jindal School of Management is recruiting to fill a tenure-track Assistant Professor position in Operations Management, beginning in Fall 2013. All areas of research in Operations Management will be considered. Applicants must have a Ph.D. or be in the process of completing it.

We seek scholars who can produce research of excellent quality with high impact. The person would teach operations management courses in the core curriculum as well as specialized electives. The person is expected to actively participate in our Center for Intelligent Supply Networks. Experience in working with the business community is also desirable. The Dallas Metroplex is ranked 3rd as the home of Fortune 500 companies. Well-known firms like American Airlines,  Ericsson,  J.C. Penney, Nortel, and Texas Instruments are headquartered here.

The Naveen Jindal School of Management fosters a professional research environment as well as a collegial culture that is intellectually stimulating and interdisciplinary. Based on publications in the select set of top-tier journals included in The UTD Top 100 Business School Research Rankings™, our Information Systems and Operations Management department has consistently ranked among the top in recent years. The School provides faculty with state-of-the-art computer technology enhanced with in-house programming support. Library and secretarial support is generous and funding is provided for travel and other activities related to research and teaching.

The Naveen Jindal School of Management is rapidly growing and currently offers BA, MBA, MS and Ph.D. degrees. We offer an MS degree in Supply Chain Management and various executive development programs for all levels of management. The School has over 85 tenure track faculty in addition to several full-time lecturers.

Applicants should submit a CV (education, research, teaching and student evaluations, work experience, a list of publications and presentations) and at least three letters of reference to Academic Search #PML120822, via the online application form at http://go.utdallas.edu/pml120822 . Indication of gender and ethnic origin for affirmative action purposes is requested as part of the application but is not required for consideration. Review of application material will begin immediately and continue until the position is filled or the search is closed.

The University of Texas is an Equal Opportunity/Affirmative Action employer and strongly encourages applications from candidates who would enhance the diversity of the university’s faculty and administration.

Suresh P Sethi

Eugene McDermott Chair of Operations Management &Director, Center for Intelligent Supply Networks (C4iSN)

School of Management, M/S SM30 The University of Texas at Dallas 800 W. Campbell Road Richardson, TX 75080-3021 Phone: 972-883-6245   Fax: 972-883-5905 Home Page:  www.utdallas.edu/~sethi My papers on SSRN: http://ssrn.com/author=328623

Faculty Position at Rotterdam School of Management, Erasmus University

Faculty position in Logistics/Supply Chain Management/ Operations

The Department of Management of Technology and Innovation at Rotterdam School of Management (RSM), Erasmus University, invites applications for a tenure-track faculty position (preferably at the Assistant Professor level) in Logistics or a related area such as Supply Chain Management and/or Operations.

The Rotterdam School of Management, Erasmus University, located in Rotterdam, The Netherlands, is a top-ranked international business school renowned for its ground-breaking research in sustainable business practice and for the development of future global business leaders. Offering an array of bachelors, masters, doctoral, MBA and executive education programs, RSM is consistently ranked amongst the top 10 business schools in Europe; it has a research ranking of 3rd in Europe, with its full-time and executive MBA programs ranked in the top 30 world-wide, and its international CEMS MSc Program ranked 2nd world-wide.

Applicants should have (or expect to complete) a Ph.D. in Logistics, Supply Chain Management, Operations Management, or a closely related field by Fall 2013. In particular, we seek candidates with the ability to perform quantitative research as well as candidates with empirical research skills, who have interest and experience in the following themes within the field of SCM; operational excellence, sustainability, interorganisational integration, human factors or service operations. Candidates need to have demonstrated a potential for excellence in research and teaching.

Base salaries are in the range of €50,000 - €70,000 per annum with attractive benefits.  Substantial tax benefits apply to non-Dutch citizens, conditional on permission granted by the Dutch Tax Office.

For further information regarding,

•         RSM, Erasmus University: www.rsm.nl

•         the research environment at RSM: www.erim.nl

•         salary and benefits: http://www.eur.nl/english/staff/

Applicants should send an electronic copy of their letter of interest, curriculum vitae, a research statement, a teaching statement, two recent (working) papers and names of three referees toCarmen Meesters-Mirasol (e-mail: cmeesters@rsm.nl), and to Marco Bijvank (e-mail:mbijvank@rsm.nl).

Screening will start immediately and continue until the position is filled. Department representatives will be interviewing candidates at the INFORMS Annual Meeting in Phoenix, AZ in October 2012. Candidates who would like to be considered for an interview at INFORMS should submit their application before October 5, 2012, and indicate if and when they will be presenting papers at the conference.

The Price of Climate Risk

The MIT Sloan Finance Group presents Robert Litterman, Inaugural S. Donald Sussman Award Recipient

Thursday, September 20th

4:30-5:30pm

Wong Auditorium

70 Memorial Drive, MIT Building E51, Cambridge, MA

The S. Donald Sussman Award is presented to individuals or groups who best exemplify Donald Sussman’s career as a successful investor in quantitative investment strategies and models.

Robert Litterman recently retired from a 23-year career at Goldman, Sachs & Co. in research, risk management, investments, and thought leadership roles. He oversaw the Quantitative Investment Strategies Group and Global Investment Strategies. Bob is Chairman of the advisory board at Kepos Capital, and for the past six years he has been one of three external advisors to Singapore’s Government Investment Corporation (GIC).

No RSVP Required

For more information, please contact knixon@mit.edu

ESD120 12_845 Sustainability Science and Engineering

There is still room to register in ESD.120/12.845, Sustainability Science and Engineering, taught by Prof. Noelle Selin. It's a discussion-oriented course for students interested in research in sustainability.

The pre-requisite requirement is flexible (so don't worry if you haven't taken ESD.83).

Our next session is Tuesday, Sept 18 at 1 pm in E51-390. It's only offered every two years, so, if you're interested, come check it out!

Cheers,

Rebecca Saari (course TA)

---------------------------------

ESD.120/12.845 Sustainability Science and Engineering

Noelle Selin

Meets Tuesdays 1-4 in E51-390 (First meeting: Tuesday 11 September)

Units 3-0-6

The growing field of sustainability science and engineering focuses on developing understanding of human-environment systems and their complex interactions, with the aim of maintaining and managing those systems for the long-term future. It integrates approaches from science, technology, management, and public policy. The objective of this course is for students developing research in this broad area to both understand and be able to contribute to this rapidly-changing field of study. To that end, this course will be a research seminar focusing on 1) identifying and collectively engaging core texts in sustainability science and engineering, and 2) learning and developing best practices in working across disciplinary boundaries in sustainability, especially across natural science/engineering and social science/management.

The first part of the subject introduces concepts of sustainability, the emerging field of sustainability science and engineering, and core research issues. We then focus on case studies of sustainability research, with guest lecturers presenting recent work in sustainability-related fields. Student choice case studies will be an opportunity to read, engage and critique studies from the literature. Assignments include two problem sets (on content and methods) and a term project (writing an interdisciplinary research proposal similar in format to an NSF Sustainability SEES fellowship proposal).

This subject is designed for PhD students and advanced Master’s students who have an in-depth knowledge of a particular case and literature in their own field (e.g. a Master’s or PhD thesis topic). Students from any discipline (including engineering, natural science, and social sciences) are welcome. The subject is offered every other year during fall semester (i.e. next will be fall 2014).

For any questions, contact Noelle Selin at selin@mit.edu or TA Rebecca Saari at saarir@mit.edu

Faculty Positions

The Yale School of Management seeks to hire junior faculty in applied operations management/operations research with research and teaching interests in supply chain management, healthcare operations, service operations, environmental operations, or other areas of application. Ph.D. or equivalent and an interdisciplinary research orientation are required. Appointments will be made for the 2013 – 2014 academic year.

Applications must be submitted online by October 31, 2012 at:http://mba.yale.edu/faculty/faculty_openings.shtml

Tenure Track Position

Robert Emmett McDonough School of Business

GeorgetownUniversity

Tenure-track faculty position in Operations Management

Georgetown University's Robert Emmett McDonough School of Business invites applications for a tenure-track faculty position in Operations Management, within the Operations and Information Management (OPIM) Area.  We seek to make an appointment at the Assistant Professor level, although more senior candidates will also be considered.  Pending budget approval, the appointment would begin at the start of the Fall semester 2013.  Candidates should either hold a Ph.D. or expect to defend their dissertation by August 2013.  We are seeking candidates with the demonstrated ability for research and teaching excellence in Operations Management and Management Science.

The McDonough School of Business offers a collegial environment for professional development.  Salaries and benefits are competitive with other leading business schools.  The University’s location in the heart of Washington DC offers unique opportunities for research collaborations as well as a vibrant environment to live in.  The McDonough School of Business is an AACSB-accredited institution that offers Undergraduate, Full-time, Part-time, and Executive MBA programs.  Our Undergraduate and MBA programs are consistently highly ranked.  The OPIM Area is actively involved in all these programs, offering a variety of core and elective courses.  Additional information about Georgetown University and the McDonough School of Business is available at http://www.georgetown.edu and http://msb.georgetown.edu.

All applications should be submitted electronically.  Interested applicants should send a cover letter, a curriculum vitae, published and working papers, research and teaching statements, as well as the names and contact information for three references to: opimfacrecruiting@georgetown.edu.  The application deadline is November 30th 2012 or until the position is filled.  Candidates who wish to be considered for an interview at the INFORMS 2012 Annual Meeting in Phoenix, AZ, should send their applications (without reference letters) by September 30th, 2012.

Georgetown University is an Equal Opportunity, Affirmative Action Employer fully dedicated to achieving a diverse faculty and staff.  All qualified candidates are encouraged to apply and will receive consideration for employment without regard to race, sex, sexual orientation, age, religion, national origin, marital status, veteran status, disability or other categories protected by law.

Operations and Decision Sciences Faculty Position at Wilfried Laurier University

Tenure-Track Position - Operations & Decision Sciences

The School of Business and Economics at Wilfrid Laurier University invites applications for a tenure-track faculty position at the Assistant Professor level in the Operations & Decision Sciences Area starting July 1, 2013.

Qualifications for the position include a Ph.D. or completion of a PhD within one year and strong records or promise in both research and teaching.  Preference may be given to candidates with research and teaching interests in operations and supply chain management, and/or management science.

Successful candidates for the position must have:

- exceptional research potential including the ability (a) to publish in top-tier journals and (b) to maintain a highly productive research agenda;

- the ability to effectively teach core decision sciences, business analytics, supply chain management, and operations management courses at the undergraduate and graduate (MBA, MSc, and PhD) levels.

The school has over one hundred full-time faculty and more than three thousand undergraduate and graduate students on campuses in Waterloo and Toronto, Ontario.  Waterloo, where the main campus is located, is a highly innovative and dynamic region, and is home to a number of leading high technology firms.  With a mission to achieve excellence in management education, the school offers undergraduate and graduate degrees, including BBA, MBA, MSc, and PhD.  Laurier’s undergraduate and graduate business programs are accredited by the AACSB.  For more information, please visit www.wlu.ca/sbe/ods.

Wilfrid Laurier University is committed to employment equity and values diversity.  We welcome applications from qualified women and men, including persons of all genders and sexual orientations, persons with disabilities, Aboriginal persons, and persons of a visible minority.  All qualified candidates are encouraged to apply; however, Canadians and permanent residents will be given priority.  Members of the designated groups must self-identify to be considered for employment equity.  Candidates may self-identify, in confidence, to Dr. Peter Carayannopoulos (contact details below).  Further information on the equity policy can be found at http://www.wlu.ca/page.php?grp_id=2465&p=10545.

All positions are subject to budgetary approval.  Applicants should send a curriculum vitae, a summary of research objectives and best/selected research article(s) along with a teaching summary that includes a brief description of their teaching experience and effectiveness including teaching evaluations, if available.  Applicants should arrange for at least three academic referees to submit reference letters to odsptac@wlu.ca at the time of application.  Electronic applications are encouraged and all applications must include the Position Number in their application.

Faculty members will attend the INFORMS and DSI conferences.  Please send expressions of interest in order to schedule appointments to Dr. Sapna Isotupa (sisotupa@wlu.ca) for the INFORMS conference and to Dr. Hamid Noori(hnoori@wlu.ca) for the DSI conference.

The review of all applications will commence on November 26th, 2012 and continue until the position is filled.  Please direct your application quoting Position Number 2013-04 to:

Dr. Peter Carayannopoulos

Associate Dean of Business: Faculty Development & Research

School of Business and Economics

Wilfrid Laurier University

75 University Avenue West

Waterloo, Ontario N2L 3C5, CANADA

Email: odsptac@wlu.ca.

Job Opening at the Marshall School of Business, University of Southern California

The Marshall School of Business invites applications for a tenure-track position in Operations Management starting in Fall 2013. Rank is open. The candidate should demonstrate a strong potential for scholarly research in Operations Management and an interest in teaching Operations Management at the undergraduate, graduate and doctoral levels. Candidates should have a Ph.D. in Operations Management (or a related discipline) or be assured of its completion by Fall 2013. Candidates with interdisciplinary interests in Operations Management and other areas such as Operations Research, Statistics, Information Systems, Economics, and Marketing are welcome.  Special consideration will be given to candidates working in the emerging field of “Big Data”.

Applicants should send a curriculum vita, copies of representative research papers or publications, evidence of teaching if any, and should arrange for three references letters to be sent to:

OM Search Committee

IOM Department, BRI-401

3670 Trousdale Parkway

Marshall School of Business

University of Southern California

Bridge Hall 401

Los Angeles, CA 90089-0809

Direct email inquiries to:   Charlene.Conston@marshall.usc.edu

The applications should be received by December 1, 2012. Information about the IOM department, its faculty and the Marshall school can be obtained at: www.marshall.usc.edu/iom

Applicants that will be attending the 2012 INFORMS conference in Phoenix, and would like to arrange for an interview there, should make sure that their curriculum vita is received by September  24, 2012.  The curriculum vita and interview request should be sent via email to Charlene Conston, at the email address indicated above.

The University of Southern California values diversity and is committed to equal opportunity in employment.  Women and men, and members of all racial and ethnic groups are encouraged to apply.

The Marshall School of Business is set in an academic community of international stature. The University of Southern California combines the strength of a research university with the advantages of a small private college and is the oldest major private university in the West. USC is committed to both teaching and creating knowledge.  Only a major research university such as USC makes the breadth of resources and academic programs funded here possible.

Thesis Coaching Group at MIT Medical Mental Health and Counseling Services

The "Thesis Coaching Group" is a coaching group offered to graduate students at MIT. It is for students who have started their thesis work (not limited to the writing stage) and who are projected to complete their thesis in six to eighteen ( or longer if needed) months. The group will be a mix of skill building, goal setting and peer support. 

Group members tackle issues such as time management, productivity, procrastination, working with advisors and other faculty, fear of failure, perfectionism, workplace issues, and the inevitable anxiety and stress related to the thesis process.  Its success is dependent on the commitment and energy of everyone in the group. 

Group members are are welcome to stay until they complete the thesis and expected to make a minimum of a one semester commitment to the group.  Members are expected to attend the group each week and contribute by receiving as well as giving support to others. 

The group meets every Tue. between 12:30 and 1:30 at MIT Medical Mental Health and Counseling Services.  If you are interested, please email Xiaolu Hsi, Ph.D. at hsix@med.mit.edu.    An individual meeting will be arranged to discuss the usefulness and match for the group. 

Faculty Positions in Industrial and Systems Engineering

The H. Milton Stewart School of Industrial & Systems Engineering of Georgia Tech in Atlanta, Georgia invites applications for Assistant Professor, Associate Professor, and Professor positions.  Qualified applicants with diverse backgrounds and interests are welcome. 

The School will consider applicants from all research areas, including advanced manufacturing, applied probability, economic decision analysis, health systems, optimization, quantitative and computational finance, simulation, statistics, supply chain logistics, and system informatics and control. 

Successful candidates will be expected to lead independent research at the cutting edge of their field, attract external funding, build a strong sponsored-research program, successfully mentor graduate students, and develop and teach undergraduate and graduate courses. 

Appointments may be made at a rank commensurate with the individual's record. Georgia Tech offers a competitive benefits package.  Applicants should possess a Ph.D. in Industrial Engineering, Operations Research, Statistics, or a related field.  Transcripts will be required prior to any offer of employment. Georgia Tech is building a culturally diverse faculty and strongly encourages applications from female and minority candidates.

Interested individuals should:

(1)    Fill out the "Faculty Candidate Application" page found at:  http://www.isye.gatech.edu/candidate  , and
(2)  Upload current curriculum vitae and letter of application, including a list of references.

Applications are encouraged for immediate review with the interview process beginning early in Fall Semester 2012.  The deadline for applications is March 31, 2013.

Georgia Tech is an Affirmative Action/Equal Opportunity Employer, a Unit of the University System of Georgia.

MIT Energy Night

Save the date for the 2012 MIT Energy Night on Friday, October 19 at the MIT Museum! We are now accepting abstracts for presenters HERE with rolling acceptance until Monday, October 1.

The MIT Energy Night is MIT's annual energy research showcase event.  In 2011, it attracted over 70 presenters and 1300 attendees.  Poster presentations covered energy research, start-ups, clubs, and initiatives.  This is a great opportunity to meet experts from various energy-related fields to discuss ideas for new energy research and business opportunities.  Topics include the production, transmission, consumption, policy and business of energy.  MIT Energy Night is free and open to the public.  More information can be found at http://mitenergynight.org.

Abstract submissions are open to all MIT-affiliated individuals.  Graduate students, post-docs, recent graduates, undergraduates, and professors are encouraged to present a poster on their energy research or start-up.  Prizes will be awarded for the best poster presentations.  If you have any questions, please contact the Content Directors, Rachel Hoffman (hoffmanr@mit.edu) and Simmy Willemann (simmyw@mit.edu).

Position Opening at Schulich School of Business, New York University

Assistant or Associate Professor Position in Business Analytics/Big Data in the areas of Information Systems and/or Operations Management

The Schulich School of Business at York University in Toronto, Canada is seeking a candidate with outstanding potential for research and scholarship in Information Systems and/or Operations Management, for a tenure track position at the rank of Assistant or Associate Professor, effective July 1, 2013. Applicants should be able to proficiently analyze the increasingly large public and private datasets that support managerial decision-making. Preference will be given to candidates who demonstrate the ability to effectively communicate Business Analytics and Big Data issues and opportunities to managerial audiences. In addition, preferred candidates will have:

- Received a PhD in either Operations Management or Information Systems

 - A research focus in Business Analytics/Big Data

 - Demonstrated potential for outstanding research and scholarship, as evidenced by publication or late round revisions in top tier journals relevant to Information Systems and/or Operations Management

- Demonstrated evidence of teaching effectiveness, preferably at all levels from undergraduate to graduate

Applicants should e-mail an application letter, curriculum vitae, samples of research papers, names and addresses of three referees, and information regarding teaching to:

Professor Wade Cook, Area Coordinator, Operations Management and Information Systems, Schulich School of Business, York University, 4700 Keele Street, Toronto, Ontario, Canada, M3J 1P3 at omis-hire-2012@schulich.yorku.ca

Deadline for submitting applications is December 1, 2012, or until the position is filled.

Salary and Benefits are competitive. All York University positions are subject to budgetary approval. York University is an Affirmative Action Employer. The Affirmative Action Program can be found on the York web site at www.yorku.ca/acadjobs or a copy can be obtained by calling the Affirmative Action office at 416 736 5713. All qualified candidates are encouraged to apply; however, Canadian Citizens and permanent residents will be given priority.

Murat Kristal, PhD Associate Professor Program Director, Master of Science in Business Analytics Operations Management & Information Systems Schulich School of Business York University Toronto, Ontario

Faculty Position in Health Systems Engineering

North Carolina State University

Edward P. Fitts Department of Industrial and Systems Engineering

Raleigh, North Carolina

Faculty Position in Health Systems Engineering

North Carolina State University (NC State) Edward P. Fitts Department of Industrial and Systems Engineering is seeking qualified applicants for a full-time, tenure-track faculty position at the Assistant or Associate professor level with a concentration in health systems engineering, starting as soon as possible. Relevant disciplines include industrial and systems engineering, operations research, and related fields as applied to medical decision making and health care systems engineering. Applicants with strong methodological research interests are particularly encouraged to apply. The successful candidate will be expected to do innovative research in medical decision making and health systems engineering and to pursue relevant research funding.  In addition, the candidate is expected to be active in the Ph.D. program, and to teach at the graduate and undergraduate levels. Junior applicants should have or expect to complete their Ph.D. by the time the position starts. NC State’s ISE Department is ranked 8th among Graduate Programs in Industrial/Manufacturing Engineering by U.S. News & World Report.

To apply for this position, go to: jobs.ncsu.edu. Search vacancies for position number 00000446. Applicants should submit a cover letter with a complete resume, detailing their educational background, research and professional experience, teaching experience and publications, along with the names of three to five professional references. A one page description of past, current and future research activities and interests should also be submitted. Review of applications will begin immediately. Applications will be accepted until suitable candidates are found.

Department representatives will attend the INFORMS Annual Meeting in Phoenix, AZ, October 14 - 17, 2012. Candidates attending the conference are strongly encouraged to submit a cover letter, vita and research/teaching statement no later than September 30, 2012.

NCSU is an equal opportunity and affirmative action employer. All qualified applicants will receive consideration for employment without regard to race, color, national origin, religion, sex, age, veteran status, or disability. In its commitment to diversity and equity, NCSU seeks applications from women, minorities and persons with disabilities. Individuals with disabilities desiring accommodations in the application process should contact Debbie Allgood-Staton, University Business Officer, Debbie_allgood@ncsu.edu, ph/vm 919-515-6401, fax 919- 515-5281.