We will definitely be discussing this in my Humanitarian Logistics and Healthcare class this spring @isenbergumass.bsky.social.

I stopped by tech support today because of issues with my @isenbergumass.bsky.social laptop, which would neither boot nor shut down, and was delighted to find in my mailbox a card from Thailand from a former PhD student with a lovely message inside. I was not even on his dissertation committee.

Today @umassamherst.bsky.social has a delayed opening because of an ice storm in our area. Faculty are busy gearing up for the new semester.

I'm updating the lectures for the Humanitarian Logistics & Healthcare class that I'll soon be teaching @isenbergumass.bsky.social & came across this www.reuters.com/business/hea... Dong Li & I wrote a paper on multitiered #supplychain #networks & product quality www.sciencedirect.com/science/arti...

Congrats to my friend Dr. George Karagiannis (who has spoken @umassamherst.bsky.social) & to his former PhD advisor Dr. Costas Synolakis on this very thoughtful OpEd in @wsj.com www.wsj.com/opinion/less... #Crans-Montanafire Deepest condolences to all those who have lost family members and friends.

Gilbert Laporte contacted Profs Speranza, Archetti, Smilowitz & me yesterday to share his paper onlinelibrary.wiley.com/doi/abs/10.1... & an essay co-authored by a former PhD student of his on 95 yr old Alison Doig Harcourt & her work, including with Ailsa Land pursuit.unimelb.edu.au/articles/cel...

Great to see news from AIMS that my PhD advisor's son, Mihalis Dafermos, is receiving a big award, at a conference in Athens www.ams.org/news?news_id... I remember fondly working with his mother, Stella Dafermos, who sadly passed away at age 49, at their home & he would come on the bus from school.

Thanks to Fareed Zakaria for writing this OpEd in @washingtonpost.com "Ukraine will be the big story of 2026." www.washingtonpost.com/opinions/202...

So horrible www.bbc.com/news/live/c8...

The first day of the New Year 2026!

This article in @nytimes.com by Adam Entous is generating a lot of discussion and is an important read www.nytimes.com/interactive/...

I received these Happy New Year wishes from a colleague in Mongolia. I love it that, in academia, we make friends from around the globe. Happy New Year 2026! Hoping that it will bring peace, good health, great adventures, professional growth, and happiness.

Tatiana Schlossberg has passed away at 35. Please read this beautiful essay she published last month. It's one of the best things I've read in a long time. www.newyorker.com/culture/the-...

This is so very, very sad. RIP, Tatiana Schlossberg www.bbc.com/news/article...

Thanks to the Journal of the Operational Research Society for making the paper I co-authored with my @isenbergumass.bsky.social PhD student Samirasadat Samadi available for free www.tandfonline.com/doi/full/10.... #Tariffs affect not only prices but also #employment. #orms #supplychains #agriculture

Thanks to @umassamherst.bsky.social workers who did a great job cleaning campus walkways so that we could take a brisk walk. Our neighborhood streets in @townofamherst.bsky.social are covered with ice.

Delighted to have received these holiday greetings from the International Centre in Mathematics in Ukraine (ICMU) in Kyiv today. Collaborations, research and education continue during wartime and will flourish once peace and freedom are restored.

Informative photo of seating arrangement in Mar-a-Lago, thanks to @kyivindependent.com kyivindependent.com/zelensky-mee...

Heartbreaking article on Odesa in Ukraine on the front page of today's @nytimes.com. Our paper on war risk insurance, co-authored with @isenbergumass.bsky.social PhD student Ismael Pour & Prof Borys Kormych of Odesa, published in the Jan 2026 issue of ITOR onlinelibrary.wiley.com/doi/10.1111/...

Good luck to the Ukrainian delegation today kyivindependent.com/zelensky-mee...

Beautiful sky at sunrise this morning in @townofamherst.bsky.social.

After some work on revising a paper, @hawkeceprof.bsky.social and I headed to the @umassamherst.bsky.social campus. We were surprised at the number of geese on the campus pond and even sitting on the snow. I would have thought they would, by now, be enjoying the warmth and sunshine in the south.

And this buck is now chewing on our front yard hedges.

The deer are back for a visit. They have eaten our arborvitae as far as they could reach.

Thanks to Dr. Mohan and to Yale and to all the medical professionals helping the injured in Ukraine and also educating Ukrainian doctors www.ctinsider.com/news/article...

Zelenskyy visits Canada for strategy session with PM Mark Carney and European leaders before Sunday's Trump meeting in Florida. "We will exchange those details of the documents that I will discuss with the President of the US," he told journalists. euromaidanpress.com/2025/12/27/z...

It will be a very interesting, important weekend.

Kind of fun to receive these certificates on Christmas Eve. I do love doing research on supply chains & networks. Thanks, ScholarGPS. Nice to be ranked #7 in #supplychains globally; #14 in #network modeling & #4 in #gametheory over the past 5 years. More info here: scholargps.com?e_ref=f85ce9...

Front pages of today's @wsj.com and @nytimes.com.

Happy Saturday morning from @townofamherst.bsky.social covered in a thick blanket of snow.

This is a time of the year when #blood #donations tend to drop. My research group @isenbergumass.bsky.social has done a lot of work on #blood #supplychains. The latest paper by 3 of my former PhD students & one of their former students is open access www.cureusjournals.com/articles/910... #orms

This morning I received Christmas wishes from a co-author of mine at the Ukrainian Catholic University in Lviv, which moved me deeply. Thinking of all my collaborators and friends in Ukraine including a wonderful collaborator in Odesa www.nytimes.com/2025/12/25/w...

Merry Christmas and peace on our plant earth!

In 2025, my @isenbergumass.bsky.social PhD student Dana Hassani, KSE colleagues in Ukraine Oleh Nivievskyi & Pavlo Martyshev & I published a paper in @informs.bsky.social journal Transportation Science. Info in this release www.informs.org/News-Room/IN... Now this www.pravda.com.ua/eng/news/202...

So nice to received this Ukrainian Christmas card from the Shevchenko Scientific Society that I am a member of. It has been an honor and pleasure to serve on several of its committees this year including the 2025 Shevchenko Emergency Fellows Fund one that gave 50 fellowships to Ukrainian scholars.

Good morning from @townofamherst.bsky.social. After an unexpected snowfall last evening, it looks like we will have a white Christmas. Wishing everyone peace and joy.

Thanks @bostonglobe.com for the great article on Dr. Brent Emigh, the head of trauma at RI Hospital, who was in charge of the amazing response to the mass casualty shooting event on Dec 13 of Brown University students. Thanks to him & to the staff at RI Hospital www.bostonglobe.com/2025/12/23/b...

Stopping wind farm construction and now this www.reuters.com/business/ene... as the government destroys good air quality and exacerbates deadly pollution.

A collaborator and close friend from Italy send us these chocolates which we will be enjoying and sharing for weeks. Grateful for friendships across the miles. Happy Holidays!

It is past 11PM in Kyiv, Ukraine and I am getting messages from a professor there whether I would be willing to evaluate faculty candidates. Of course, I agreed. #academicmatters in #wartime

The torrential rains and a day of warmer weather in @townofamherst.bsky.social melted the snow so we hiked the fields of the @umassamherst.bsky.social agricultural station. The produce is now gone. Back to revising an #orms paper, fortified with a latte, on agricultural supply chains.

From the President of Brown University received via email. @hawkeceprof.bsky.social & I will be lighting a candle and joining in a moment of silence at 4:03PM today. #RIP Ella and MukhammadAziz.

As Christmas approaches & the New 2026 Year, I'm so grateful for my collaborators around the globe. Our latest paper in EJOR with colleagues at the University of Catania in Italy (Prof. Daniele & Drs. Colajanni & Sciacca) has now been published open access www.sciencedirect.com/science/arti... #orms

Front pages of today's @nytimes.com and the @wsj.com.

Because of this horrible week I wrote the ff. post: Be Kind and Aware as We Mourn annanagurney.blogspot.com/2025/12/be-k...

Very touched to receive this gift of confections from Ukraine today from an exchange student from the Kyiv School of Economics (KSE) who has been studying at @umassamherst.bsky.social and is now heading back to Ukraine.

It has been an incredibly difficult, painful week, and one that we will never forget, for all those in the Brown University and MIT communities and beyond. Alma maters help to make us who we are and, hopefully, for the better. Be kind. So many are hurting and trying to understand the unthinkable.

It looks like the search is over. Long days ahead.

These are our most impressive institutions and crucial for our survival as a people and a species.

Felt so good to receive this message from the @isenbergumass.bsky.social Dean Anne P. Massey. Thanks to the anonymous student who acknowledged my support and mentorship. This means a lot to me.