Categories
Life

A look back at 2023

It’s time for the yearly retrospective post again. This time, because previous such posts on this blog often seemed to bog down when trying to display the many photos in them, we made a separate album on Flickr with a selection of photos with captions, as they would normally appear embedded in this post.

You can view the album at https://flic.kr/s/aHBqjB8BcV. It is set to appear in a separate tab of your browser, which we hope will make it easier to go back and forth between this text and the photos. In any case, the text in this post and the captions of the photos should make following the album easy. One video of the many we made with the GoPro during our USVI St. Thomas trip is worth sharing separately. It is a video made by M off St. John, during our snorkeling cruise, showing a Manta Ray: https://gopro.com/v/QoGveNwQDZ5EP

On with the story!

January found us visiting Longwood Gardens. We had spent New Year’s Eve with our friends Ellen and Jim at their house, joined by Reiko, Troy, and their kids Jordan and Kitt. In anticipation of this, we had booked an AirBnB in West Chester, so it was easy to pop in to Longwood Gardens to spend New Year’s Day. We had dinner at their 1906 restaurant and went around their Christmas light display.

Soon after, we went to Mohonk Mountain House to celebrate our anniversary. There was massive fog around the mountain which led to some very moody pictures but prevented us from getting interesting views from the path around the mountain during a guided hike. We retreated indoors and enjoyed a bit of archery (see photos).

Near the end of February we attended an impressive Lyric Fest concert, Cotton, at the Philadelphia Episcopal Cathedral. It was a multimedia event with commissioned songs and photos of cotton by Philadelphia artist John Dowell. Details here: https://lyricfest.org/commissions/cotton/

In March we again did not have the same Spring break, as we have not had in many years, but we at least had an overlapping weekend. We went to Mohonk Mountain House once again, where we found very pretty snowy scenes (see photos). We also took part in a cocktail competition by Mohonk employees, which was great fun. Upon our return home, we had opportunities to hang out with D’s brother Kostas, who was visiting the US to collaborate with a coauthor of his, while on sabbatical. We showed him a number of our favorite spots, such as New Hope and the Washington Crossing State Park. In the photos, you can see a pic of Kostas and M during a wine tasting at Terhune Orchards in New Jersey.

An event D enjoyed a lot in April was the induction ceremony for the International Honor Society Omicron Delta Epsilon, of whose Temple University chapter D is the academic advisor. We included a photo of D speaking at the ceremony, taken by our friend and D’s colleague Charlie. Also memorable in April was yet another Lyric Fest concert, the first one to be presented in Longwood Gardens, in their music series, on Earth Day. The concert was named The Metamorphosis of Plants, and it was another multimedia affair, in which photos of flowers were projected while the singers performed. Thanks to our dear friend Suzanne, cofounder of Lyric Fest, photos by both of us were included in the event, alongside photos by a few other photographers. You can see us in the photo album in front of a screen that shows some of the flower photos. It was kind of mind-blowing to see your Very Own Photos on a large screen.

May found us being social butterflies and enjoying yet more musical events, including a performance by Itzhak Perlman in the Kimmel Center with friends Nicki and Charlie, and, later, a great Piffaro concert, “Entre Dos Alamos”.

There is not very much to say about our Spring semesters at work. D had a chance to teach Game Theory (first time was in Spring 2022) and had a strong contingent of students at the top of the class, but the rest showed the terrible effects of COVID on students: a lot of them seem to have forgotten how to study and have lost the motivation to do so. D also had a section of Microeconomic Principles, where the terrible effects of COVID were even more pronounced. M’s semester was only ok, for many of the same COVID-related reasons along with the ups and downs of being Departmental Chair.

June started spectacularly with a week-long trip to St. Thomas, U.S. Virgin Islands. In preparation, we had bought a GoPro camera (these cameras are waterproof and perfect for underwater photos and videos). There was good snorkeling there, and we also took a sunset cruise and ate at some really good restaurants, as well as enjoying the pool and bar of our resort. (We stayed at the Margaritaville — it was a very affordable option and we have to confess we had fun with the frozen concoction maker in our room.) The album linked above has a photo from our snorkeling and the link below the album link will take you to a video of a Manta Ray M made on a snorkeling trip we took. In the album you can also see an action shot of M from the snorkeling trip.

We packed another trip in June, this one to Connecticut, to check out the Madison Beach hotel, visit our friends Sierra and Jacob and Sierra’s family, and stay once more at the Thimble Islands Bed and Breakfast. The beach of the Madison Beach hotel is very nice and it has drinks and snacks service. However, the weather was unseasonably cool and very windy, so we didn’t really have a beach time there. We did get to see a cool double rainbow while there, though, and visited some great restaurants and the Book Barn in Niantic, which we were introduced to on our first visit to the area.

July started with a dinner at Vernick for M’s birthday and on the 2nd we attended Melanie and Gavin’s wedding at the College of Physicians of Philadelphia. Melanie is the daughter of our dear friends Mike and Eva. It was a wonderfully spirited celebration, one of the most exciting and uplifting weddings we have attended. In the photo album you can see our Photo Booth contribution to their guest book.

Before our Fall semesters started, we paid a visit to Longwood Gardens again (photo in album) and we had one last hurrah of a vacation, this time in Cape May, NJ. We had a number of beach visits, nice dinners, and a spirits tasting (photo in the album).

September started with a visit to Grounds for Sculpture in Hamilton, NJ. We had been there only once, many years ago, and we really liked wandering around and admiring the sculptures. We also had a lovely lunch at their unfortunately named restaurant “Rats” (photo) unless you are a fan of the Wind in the Willows and are familiar with the character Rat.

We planned two trips to get photos of Fall foliage in October. The first was in mid-October, once more to Mohonk Mountain House (our third visit there in the year). In the album, you can see two photos, one of Mohonk lake and the resort at the far left, taken from the most remote part of the hike around the lake, and then one photo of M at the top of the mountain, near an artificial pond. The second leaf-peeping trip was at the very end of the month, together with Mike and Eva, to Shawnee, PA where record highs in the upper 70s were reached on Saturday while we were hiking. You can see three photos from this trip in the album, at Dingman’s Falls, at the Silverback Distillery (we two are fans and went for a tasting and some purchasing, Mike and Eva gamely joined us and Mike was our driver, since he didn’t drink), and at Hidden Lake. The leaf report from those trips is that we were too early for peak conditions at Mohonk and a little too late in Shawnee but we were not deterred by this and got some fabulous photos in both locations.

November found us paying several visits to the Morris Arboretum, still in search of Fall foliage, and we have included a photo from one of these visits in the album, where you can see a strikingly red canopy. We had Thanksgiving at Suzanne and Kevin’s, continuing a tradition (that goes back to 1995 for D) where we chatted with Suzanne and Kevin’s daughters Mei and Lily, whom we see less frequently these days than we’d like, and their partners’ lovely families. We also had a lovely conversation with Charlotte, a recent voice student of Suzanne’s at Bryn Mawr and currently a graduate student at MIT in atomic physics. We had seen her before at Suzanne’s parties and we always appreciate chances to catch up with her.

December came with the end of the Fall semester (both of us had to wait until the 20th to be done with grading) and one extraordinary Lyric Fest concert of Benjamin Perry Wenzelberg’s winter cantata, commissioned by Lyric Fest, on poems by Jeanne Minahan. Benjy is a remarkable 24-year old composer and conductor, and we are very happy to have been able to sponsor one of the songs in the cantata, Winter’s Antidote, an ode to hot chocolate. You can find more information about this concert at https://lyricfest.org/concerts/any-of-those-decembers/ and a video excerpt just appeared a few hours before the writing of this sentence, at https://youtu.be/kyiOqR_y6nE?feature=shared. On Christmas, we were lucky enough to spend the evening having dinner with Suzanne, Kevin, and Charlotte (last photo in the album). For New Year’s Eve, tomorrow, we are looking forward to a repeat of the gathering at Ellen and Jim’s.

In terms of our teaching work, in the summer we were both hit by the Generative AI tsunami that threatens to negate the value of the college essay (by making it easy for students to outsource most of the writing to ChatGPT) and to make the life of everyone in the “knowledge professions” massively interesting, to say the least. M attended seminars on this in the summer, got D interested about it, and we both did our best to adapt our course assignments in the Fall semester to be impervious to AI cheating. For D, this worked OK in his economics of risk and uncertainty class, where he decided to make the “homework” be in-class exercises once a week, but it caused a big problem in his writing-intensive economic inequality class, where his modification of the paper requirements to make them AI-proof made the course too hard for most of the students. M became an expert of sorts on AI at her University and led faculty workshops and small group discussions. She also finished her term as Chair.

In the Spring semester of 2024, we both have sabbaticals. We are looking forward to doing our sabbatical projects and doing some traveling, including a short trip to Cincinnati to see the total solar eclipse in early April and a visit with Jelena and Rob in Belfast in May (hopefully!).

We wish everybody peace and health for 2024!

Categories
Life

Recovery of a technical post

The material below was originally part of a page in my economics-oriented site. Since it suddenly stopped been displayed there, I am attempting to resurrect it here as a stopgap measure.

What is \text{\Large \LaTeX}?

\LaTeX is a free software package for typesetting documents for printing and for on-screen viewing. It is particularly strong for documents that involve a lot of mathematical expressions, but it also pays serious attention to refined aspects of typesetting. Documents typeset with \LaTeX are considerably more beautiful than documents created in any word processing application. Mathematicians, physicists, chemists, economists, and many other scholars use \LaTeX to typeset their works due to its superiority and free availability.

\LaTeX is a package based on the computer application \TeX, created in 1978 by Donald E. Knuth. The original author of \LaTeX is Leslie Lamport, but now \LaTeX is maintained by others. Please visit http://www.latex-project.org/ for the history of \LaTeX and other related information. Knuth chose the name TeX because of the ancient Greek word τέχνη, which means art. People who know this pronounce TeX as “tech”, not “tex”. Knuth made \TeX freely available and it became one of the earliest and most successful open source software programs, around which there also sprang an amazingly large collection of extensions and packages, of which \LaTeX is a particularly successful example that lets you pay attention to creating content, while leaving the details of typesetting to professionally created templates.

A very good introduction to \LaTeX is the Not-So-Short Introduction to LaTeX 2e.

I have been using \LaTeX over many years to typeset papers, presentations, lecture notes, and a book.

Sources for downloading \text{\Large \LaTeX} and related programs free of charge

The version of \LaTeX you will need in order to create and typeset documents depends on the operating system you run on your computer. Here are some good choices, arranged by operating system.
TeX Live 2009 – runs on every widely used operating system (Linux, other versions of UNIX, Mac OS X, Windows).
For those who use Windows, you can instead download miktex.
For the Max OS X, the best setup is MacTeX, which adds some very good tools to the TeXLive 2009 distribution. It includes the excellent \LaTeX development environment TeXShop (\LaTeX editor with a well-integrated previewer).
For editors I recommend Emacs (see below if you are using a Mac), Kile or Emacs on Linux, and LEd or Texniccenter on Windows. Winedt is an old favorite for Windows, but is is not free (shareware) and it is showing its age. TeXLive these days comes with TeXworks, which attempts to provide a development environment like TeXShop for all operating systems. It still has some rough edges. A special ability of Emacs, when the AucTeX emacs package is installed, is the ability to show equations and images within the text document as you prepare it, sparing you the need to keep compiling your document very frequently to see the output of your work.
For the hardy souls who are familiar with Emacs, the Aquamacs version for Mac OS X is by far the best Emacs implementation I have seen, and I have tried Emacs on Linux, Windows, and the Mac. In fact, it is so well configured that you don’t really need to be a hardy soul to use it.

ADDITION: After the 3/3/2010 presentation at Temple University, Sandeep Bhaskar suggested that I should add a mention of the TeXmaker program for composing, compiling, and previewing \LaTeX documents. It has graphical ways of entering commands that you may find hard to remember and runs on every widely-used operating system.

Tutorials and Examples

You create documents in \LaTeX by editing a text file with extension .tex. It is a good idea to avoid spaces in the name of the file. It is also a good idea to avoid word processors and instead use a text editor for this; I offered suggestions of editors earlier. A particularly problematic aspect of using a word processor for a .tex document is that most of them are configured to use curly apostrophes and other special marks that are most likely going to be misinterpreted by \LaTeX. Do not worry, \LaTeX will convert apostrophes to curly ones and will make many other beautifying changes to your text automatically, according to its professionally designed templates. Another advantage of text editors specially made for \LaTeX work is that they highlight commands in color and can automatically match braces, thereby reducing substantially the number of \LaTeX-syntactical errors that you make. The editors also have boilerplate embedded in special macros (these differ by editor) to save you typing; for instance, if I want to insert a bulleted list in my document and I am using Emacs, I type Ctrl+E and then “itemize” (without the quotes), causing Emacs to insert

\begin{itemize}
\item
\end{itemize}

and to put the insertion point right after the \item command for me to type the text of the first bulleted item.

I offer now some hints for creating various kinds of documents. My examples come in two parts: the .tex file and the resulting .pdf output file.

Workflow

The typical workflow in composing \LaTeX documents is as follows.

  1. Start with a template, maybe one of my examples below.
  2. Add text and formulas.
  3. Compile it with PDFLaTeX (each editor listed above provides a simple, one-click way of doing so).
  4. If you have added citations using BibTeX, run BibTeX (your editor should provide a simple, one-click way of doing so).
  5. If you ran BibTeX, run PDFLaTeX twice now, to resolve cross-references. (\LaTeX deals with cross-reference information by writing it into a file first, which it then needs to read to incorporate that information back into the document.)
  6. If you get error messages, do not panic. You probably mismatched braces or mistyped commands. Your document is still there, no matter how many errors you got. Google is your friend as you try to figure out errors, and the not-so-short introduction to \LaTeX mentioned above has some advise on dealing with errors, too.
  7. Preview the ensuing PDF. I recommend strongly against using Adobe Reader. It is slow, unsafe, and locks the files it has open, making it hard for you to repeat this process. Foxit Reader is a good alternative on Windows, and another good one and open-source to boot, is Sumatra. The Mac OS X system provides Preview, its own PDF reader that works very well (or you can download the free Skim which is also an excellent PDF reader); of course, you can just use the integrated PDF reader in TeXShop. On Linux good alternatives are Evince, xpdf, or Okular, which is the native previewer of Kile.
  8. Repeat as needed.

Do not get worried that the compilation process will be slow. Modern computers are amazingly fast doing this. On my computers, I can typeset a 300-page book in about 5 seconds.

Composing papers

There are many choices for papers, some based on the default LaTeX article document class, others on different \LaTeX document classes. Here is an example (and the PDF output generated by compiling it with PDFLaTeX, the default variant of the \LaTeX compiler) based on some lecture notes of mine, with portions removed to make the file shorter. Even after the removals, the file shows you the use of many interesting packages, such as setspace for declarations such as \onehalfspacing or \doublespacing, fourier for a nice collection of fonts (try commenting out the line \usepackage{fourier} by typing % in front of it and recompile to see the default \LaTeX font set) and the wonderful graphics package tikz (written, like Beamer, by Till Tantau, who also wrote a fantastic manual for tikz).

Bibliographies

The creation and maintenance of bibliographies is easily automated in \LaTeX via the program BibTeX. Here is an easy introduction. There are also programs that help with the creation and maintenance of the .bib file that you will need to have to use BibTeX. A good one that runs on Java, and so can be used on many operating systems, is Jabref. It is a good idea to start work on your bibliography as you start composing the paper itself. You can then take advantage of the automation of bibliography management that \LaTeX offers when used in conjunction with BibTeX.

Making presentations

There are several presentation packages for \LaTeX. My favorite, and the one most \LaTeX-savvy economists use for their presentations, is called Beamer. A tutorial for Beamer can be found at here(PDF). I also strongly recommend the Beamer manual, written by Till Tantau, the creator of Beamer, which should be in your TeX installation (and is easily found via a Google search if it is not). It is one of the best software manuals I have encountered; do not be put off by its length, it is lengthy in order to be clear and to cover all the myriad features of Beamer.

Here is an example Beamer presentation with the source file (.tex file) and the file’s PDF output.

Lecture Notes on the Fly

I have not used \LaTeX in this way, but someone else has. The linked article has a treasure trove of good advice on how to make your creation of LaTeX documents more efficient and accurate.

List of Symbols Available in \text{\large \LaTeX}

There is a comprehensive list.

CTAN

This acronym stands for the Comprehensive TeX Archive Network. There you can find an unbelievably extensive collection of informative documents, packages, fonts, and software related to all things \TeX / \LaTeX.

Categories
Life

A moving piece by Roger Ebert

It will make you sad but not too much; go ahead, give it a read. Ebert is resilient, in the best spirit of Homo Sapiens. Nil by mouth, but lots by brain, good humor, and the power to overcome.

Categories
Fun

Aargh, why a new theme?

I really liked the previous theme, but it was experimental and I found some glitches. So now I’m trying the one you see, Simple Chrome, by Beysim Ali.

And who am I, as in the personal pronoun in this and several other posts? Dimitrios. I often post as “admin” for uninteresting reasons, so the only thing to note regarding the “I” is that in the infrequent cases when Marianne posts, it will be clear it’s a post by her.

Categories
Books Computer stuff Fun

Today’s reading

Non-work reading, that is.

  • Don’t Make Me Think by Steve Krug, second edition, 2006. This is a very enjoyable book on how to design easy-to-use web sites. Got it as an e-book, and the clunky process of downloading Adob’e e-book reading software before I could download the book was ironically exactly contrary to the main message of the book.
  • WordPress 2.8 Theme Design by Tessa Blakeley Silver, 2009. This version of a book I already have in hard copy covers a more recent WordPress release than the one my hard copy book covers. Pleasingly, the publishers, Packt publishing, allow you to download an unrestricted PDF, as opposed to the publishers of Krug book, who does not deserve a link here. It’s OK, book publishers, like iTunes has shown (after too long a time), there is no reason to panic and only release DRMed digital copies. Most of your buyers are law-abiding. Seriously.

You only get one guess at what my main activity revolved around for the better part of today.

Categories
Computer stuff

Google Chrome for Mac now accepts extensions

Yes, very geeky, I know. But some of you, I also know, will appreciate the notice.

So far, so good; Feedly works fine, and so does Readability, Instapaper and Evernote Clipper. And I like very much the Google Wave notifier.

Categories
Life

Darwin awards 2009

The Darwin awards for 2009 have been announced. ‘Nuff said.

Categories
Books Computer stuff

Two tricks for better reading online

I recently started using Readability (a Firefox extension) to read certain web pages. It does an excellent job in capturing the main text area on many a page (but it does not work on many, such as Friendfeed.com, which auto-update constantly). You can format the text in various ways for easy readability (apt name) and once you discover you want to keep it for future reference you can put it in Evernote by the Firefox bookmarklet.

Today I started using yet another such tool I was reading about in Lifehacker: Instapaper. For some reason I had checked it out in the summer and forgot all about it. I suspect it was because I wanted Evernote to be the default place for all my notes. But today I am seeing that instapaper can be a first-pass place for interesting sites, and items I read there are archived online automatically for me or I can grab them and stick them into Evernote in the same way as with Readability. But Instapaper has a big advantage over Readability for browsers (like Chrome) that have (on the Mac, for now) no extension capability: it is a bookmarklet and a site and it can be accessed, therefore, with any browser.So on we go: better tools, more reading online. Now to moderate that and find only the good things to read!

Categories
Books Fun

On “Writing for Nonreaders in the Postprint Era” from McSweeney’s

This item from Robert Lanham in McSweeney’s Internet Tendency is a hilarious parody of college syllabi except when it hits close to the bone and starts hurting, which it does right now, as I just finished today a totally revamped syllabus for my undergraduate mathematical economics course for the coming semester. Writing for Nonreaders. Really. Here is a quote from the “course description” to induce you to read the whole thing, which I enjoyed (humor and hurt together) immensely:

Instant messaging. Twittering. Facebook updates. These 21st-century literary genres are defining a new “Lost Generation” of minimalists who would much rather watch Lost on their iPhones than toil over long-winded articles and short stories. Students will acquire the tools needed to make their tweets glimmer with a complete lack of forethought, their Facebook updates ring with self-importance, and their blog entries shimmer with literary pithiness. All without the restraints of writing in complete sentences. w00t! w00t! Throughout the course, a further paring down of the Hemingway/Stein school of minimalism will be emphasized, limiting the superfluous use of nouns, verbs, adverbs, adjectives, conjunctions, gerunds, and other literary pitfalls.

Categories
Life

Happy New Year!

No more posts today about reading or anything else but: Happy New Year!