In Transit

Posted in Biographical with tags , on February 4, 2024 by telescoper

So here I am in Abu Dhabi International Airport. It’s about 8.40 pm my time, which is about 4.40 pm GMT. I’ve decided to take the so-called “silly” route to Barcelona to resume my sabbatical (via Sydney Australia), and Abu Dhabi is the first staging post along the way. The flight so far – with Etihad – has been pleasant enough: on time, and with nice food and wine. I wasn’t sure about the in-flight entertainment though. That seemed to consist of a very long cartoon showing a very large aeroplane moving very slowly over a map. Still, there was some nice music to listen to, including some jazz and several Schubert piano sonatas and I’ve got plenty to read.

The first leg was about 7 hours or so, which isn’t too bad. The next bit is almost twice as long and there’s another +7 hrs in terms of time difference. I’m not sure what state I’ll be in when I get to my final destination but I’ll find out by about 7.30pm Sydney time tomorrow.

I’ll update when I get to the other side!

Six Nations Weekend

Posted in Rugby with tags , , , on February 3, 2024 by telescoper

I found out yesterday that some of my colleagues at Maynooth were planning to go to a pub to watch the first match of the new Six Nations competition last night. They were optimistic, but I thought it was going to be a very tough match for Ireland in Marseille. Despite the absence of Dupont and Ntamack I thought home advantage would prove decisive. I am very happy that I was proved wrong. It was a comprehensive victory for Ireland, 38-17. I bet the Maynooth contingent enjoyed the game! I never imagined a bonus point win for Ireland nor did I think I’d ever see a French side so unimaginative in attack and so porous in defence.

(In the interest of full disclosure, I should mention that last weekend I was confident that Australia would beat the West Indies and India would beat England in their respective test matches. I was wrong on both counts. Clearly my predictive powers are limited!)

The remaining two games of the first round were played today. England beat Italy by 27-24 in a game of much lower quality. Italy were OK in the first half, but offered very little in the second until with the game virtually over they scored a fine try that gave them a losing bonus point. I think the scoreline flattered Italy a bit, though I don’t think England were particularly impressive.

The last game, Wales versus Scotland in Cardiff, turned out to be very exciting. Wales were dreadful in the first half, and trailed 20-0 at half time. When Scotland scored another try to make it 27-0 Wales looked a beaten side and I feared they would be walloped by 50 points or more. Then Wales scored a try, Scotland had Turner sent to the sin bin and Wales ran riot, scoring three more tries. With ten minutes left to play, Wales were within a point and with the wind in their sails, and Scotland imploding, looked the likelier team to win. They had a good chance too, but messed up a lineout in a good position and lost the ball. Scotland almost scored at the death but it finished 26-27, Wales netting two bonus points after a stirring revival that almost brought them victory.

It’s dangerous to draw too many conclusions from the first round of matches, but I can make one prediction with some confidence: neither France nor Wales nor Italy will do a Grand Slam in 2024.

Reformscape – the Video!

Posted in Education, Maynooth with tags , , , on February 2, 2024 by telescoper

Not long ago, I posted an item about the San Francisco Declaration on Research Assessment (DORA). I was interested this week to see the latest initiative from DORA which is called Reformscape. You can read much more about here. Here are some excerpts from the introduction:

  • The old ways of assessing the quality of research and progressing the careers of researchers are no longer fit for purpose. These dated approaches are neither fair nor responsible and often leave talented people overlooked, holding back progress in diversity, equity and inclusion. Institutions are increasingly expected to move with the times and update their assessment practices, but making meaningful change isn’t easy. 
  • Luckily, many have gone before you. Institutions around the world have been busy figuring out how to overcome the challenges of reforming academic career assessment, and we are here to help you learn from their experiences.
  • DORA Reformscape is an online tool where you can explore examples of how to bring responsible assessment for hiring, promotion and tenure into your institution, and to share your approach with others.
  • DORA Reformscape is an online tool where you can explore examples of how to bring responsible assessment for hiring, promotion and tenure into your institution, and to share your approach with others.

There’s also an introductory video:

Since my own institution, Maynooth University, is a signatory of DORA I am sure that it will already be working to implement the Reformscape recommendations into its own processes…

Two New Publications at the Open Journal of Astrophysics

Posted in OJAp Papers, Open Access, The Universe and Stuff with tags , , , , , , , , , , , on February 1, 2024 by telescoper

As the first month of 2024 is now over, I thought I’d post an update relating to the  Open Journal of Astrophysics.  Since the last update we have published two papers, taking  the count in Volume 7 (2024) up to 9 (the total for January) and the total published by OJAp up to 124. We will have others soon, but I will be travelling for the first few days of February so the next update will be in a week or so.

Using our sophisticated forecasting algorithm, based on the first month of 2024 as input, I predict that we will publish around 9×12=108 papers in 2024, more than double last year’s total of 50.

Both the current papers discussed here are in the folder marked Cosmology and NonGalactic Astrophysics, our most popular category.

Anyway, the first paper of the most recent pair – published on January 30th – is “Capse.jl: efficient and auto-differentiable CMB power spectra emulation”, by Marco Bonici (INAF Milano, Italy & Waterloo, Canada), Federico Bianchini (Stanford, USA) and Jaime Ruiz-Zapatero (Oxford, UK). This paper presents an emulator for rapid and accurate prediction of Cosmic Microwave Background (CMB) temperature, polarization, and lensing angular power spectra, that works much faster than traditional methods. The code is written in Julia, in which language we are seeing an increasing number of submissions to OJAp.

Here is a screen grab of the overlay which includes the abstract:

 

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.

The second paper was published yesterday (31st January 2024) and has the title “Cosmological Inflation in N-Dimensional Gaussian Random Fields with Algorithmic Data Compression” which is a  study of inflationary models with Gaussian random potentials for multiple scalar fields, tracking the evolutionary trajectories numerically. The authors are Connor Painter and Emory Bunn, both the Physics Department at the University of Richmond, Virginia (USA). Ted Bunn (as he is usually known) is a longstanding member of the Editorial Board of the Open Journal of Astrophysics (and was thereby excluded from any involvement in the editorial process for this paper).

Here is a screen grab of the overlay which includes the abstract:

 

 

 

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.

Here Endeth the Update.

On Imbolc and the Quickening of the Year

Posted in Biographical with tags , , , , , on February 1, 2024 by telescoper

It is 1st February 2024, which means that today is Imbolc, a Gaelic festival marking the point halfway between the winter solstice and vernal equinox in the Northern hemisphere.  Incidentally, the Celts counted each day starting from sunset so Imbolc really started yesterday evening, on 31st January.

In the old pagan calendar, this day is regarded as the first day of spring, as it is roughly the time when the first spring lambs are born, daffodils, etc, start to appear, and the days get noticeably longer.  It is also sometimes called, rather beautifully, The Quickening of the Year.  It’s a time for rebirth and renewal after the darkness of winter.

In the Northern hemisphere, in astronomical terms, the solar year is defined by the two solstices (summer, around June 21st, and winter, around December 21st) and the equinoxes (spring, around March 21st, and Autumn, around September 21st). These four events divide the year into four roughly equal parts of about 13 weeks each. If you divide each of these intervals in two you divide the year into eight pieces of six and a bit weeks each. The dates midway between the astronomical events mentioned above are the cross-quarter days, of which Imbolc is one. They are:

  • 1st February: Imbolc (Candlemas)
  • 1st May: Beltane (Mayday)
  • 1st August: Lughnasadh (Lammas)
  • 1st November: Samhain (All Saints Day)

The names I’ve added in italics are taken from the Celtic/neo-Pagan and, in parenthesis the (English) Christian terms, for the cross-quarter daysThese timings are rough because the dates of the equinoxes and solstices vary from year to year. Imbolc is often taken to be the 2nd of February (Groundhog Day) and Samhain is sometimes taken to be October 31st, Halloween but hopefully you get the point that although the Pagan festivals have been appropriated by the Christian church, they have much older origins. In Ireland Imbolc is usually often referred to a Lá Fhéile Bríde,  St Brigid’s Day, after St Brigid of Kildare, whose Feast Day is 1st February, another appropriation of a much older festival.

Until last year only three of the four cross-quarter days were associated with public holidays in Ireland; there wasn’t a holiday for Imbolc. In 2022 however, the Government decided to create a new Bank Holiday that corrected this anomaly by introducing a new St Brigid’s Day holiday on the first Monday on or after 1st February, which also happens to be the first national holiday in Ireland to be named after a woman. The first such holiday was Monday, 6th February 2023 and the second is on Monday 5th February 2024, by which time I will hopefully be in a place where Northern hemisphere considerations do not apply.

P.S. On a personal note, today is also the 6th anniversary of the very first lecture I gave in Maynooth, on Computational Physics on 1st February 2018…

Rankings Junk

Posted in Education with tags , , , , on January 31, 2024 by telescoper

A few weeks ago I did a post in response to the fact that Professor Philip Moriarty of Nottingham University – a former colleague of mine – had written a blog post in protest at his institution’s most recent and most blatant attempts to game the wretched world university rankings.

One of the targets of his ire were the Quacquarelli Symonds (QS) rankings. Ironically, I was looking in my spam folder yesterday and what did I find but an invitation to participate in the QS rankings, correctly identified as junk:

Clearly my email filters know what they’re doing!

Anyway, this gives me an excuse to boost Phil’s post again. The open letter contained therein is aimed at persuading not only Nottingham but other universities both in the UK and elsewhere to follow the example of Utrecht and abandon these absurd and meaningless rankings. To sign the open letter please follow this link and to see a list of signatories see here.

PHANGS for the galaxies…

Posted in The Universe and Stuff with tags , , , , , , , on January 31, 2024 by telescoper

I couldn’t resist sharing this wonderful set of images from JWST courtesy of the PHANGS* team showing exquisite details of 19 face-on spiral galaxies as seen in the infra-red:

More information about the remarkable structures seen in these images, as well as higher resolution versions of the images themselves, can be found on the European Space Agency website here.

*For those of you not in the know, PHANGS stands for Particularly Horrible Acronym Not Generated Sensibly Physics at High Angular resolution in Nearby GalaxieS.

The Little Book of Irish Research

Posted in Euclid, Maynooth, The Universe and Stuff with tags , on January 30, 2024 by telescoper

A few months ago, I blogged on the occasion of the launch by Simon Harris TD, Minister for Further and Higher Education, Research, Innovation and Science, of the Little Book of Irish Research. This book, which is aimed at school students, so is written at an elementary level, gives quick summaries of areas of research that the general public said that they were interested in, grouped into sixteen themes, and it will be distributed to schools all round Ireland.

if you want to read it here is a PDF file of the whole thing for you to download at your leisure. When I posted about it last time I hadn’t actually seen a hard copy, but I finally got my hands on one:

I can now confirm that it is indeed a little book. I think we’ll find it useful for our own outreach events, open days, etc, in the Department of Theoretical Physics, and so will the many colleagues in other Departments in other universities and research institutes whose work is also featured.

I was very gratified to see myself get a mention (on page 41), though it’s not really about me but about Euclid which has generated considerable interest in the general public already and is set to continue doing that for many years. As you can see, there’s also a double-page spread of JWST, though unfortunately it does not name the scientists involved; Paddy Kavanagh is the main man at Maynooth for matters JWST.

For Democratic Governance of Universities

Posted in Education with tags , , , on January 30, 2024 by telescoper

Yesterday I stumbled across a paper by Blanca Missé and James Martel of San Francisco State University with the title For Democratic Governance of Universities: The Case for Administrative Abolition.

The abstract is:

In this essay, we argue for administrative abolition, that is, the elimination of all college presidents, provosts, deans and other top level administrators who we argue form a parasitical group that was developed over time in order to exercise both political and financial control over faculty, staff and students. We examine the way that the idea of “shared governance” disguises the de facto dictatorship of administration over faculty self-governance, explore the history of how this power grab took place and furthermore explore alternative forms of faculty self-management in both US history and abroad (especially in Latin America).

Theory & Event, vol. 27 no. 1, 2024, p. 5-29. Project MUSEhttps://doi.org/10.1353/tae.2024.a917791.

You can find the whole paper here. I encourage everyone working in a university to read it.

I’m sure this article will ring true to many academics, besides myself, who dream of a time when universities direct their resources to teaching and research rather than squandering it on the bloated apparatus of management that hinders the very activities it should be supporting.

The Forthcoming Referenda

Posted in Politics with tags , , , , , , , , on January 29, 2024 by telescoper

On Friday 8th March 2024, the Irish electorate – that includes me – will be asked to vote on two amendments to the constitution. I won’t go into the relevant issues in detail here, but the proposed changes are intended to (i) broaden the concept of the family to be more inclusive (for example, currently, there is no constitutional recognition of families in which the parents are not married); and (ii) broaden the definition of “care” in the family home beyond the current constitution which emphasizes exclusively the “duties of women” in this regard.

This post is not really about these constitutional amendments but about the much less important issue that the media are describing them as two referendums. I will explain here why I think there is a good argument for the word referenda being used for the voting on 8th March. Regular readers of this blog know that I’m never pedantic about such matters. Well, maybe a little bit, sometimes. Latin was my best subject at O-level, though, so I can’t resist making a comment.

Any dictionary will tell you that “referendum” is obtained from the Latin verb referre which is itself formed as re- (prefix meaning “back”) + ferre (to carry), thus its literal meaning is “carry back” or, more relevantly to the current discussion, “to refer”. Ferre is actually an irregular verb, which complicates the discussion a bit, so I’ll use simpler examples of regular verbs below.

Latin grammar includes two related concepts derived from a verb, the gerund and the gerundive.

The gerund is a verbal noun; such things exist in English in forms that mean `the act of something’, e.g. running, eating, loving.The word formed from a verb with the ending `ing’ can also function as a present participle in English, but we wont be going there. It may easy to muddle up gerunds with participles in English, but not in Latin as they are formed in distinctly different ways.

As an example in the case of ‘loving’ the relevant Latin verb is  amare (which conjugates as amo, amasamat, and all that); the appropriate gerund is amandus. You can this sort of Latin construction surviving in such English words as “graduand”. Note, however, that a gerund has no plural form because that would make no sense in Latin. There are plural forms in English such as `doings’ and `comings and goings’ but I don’t think these are relevant here as I interpret them as jocular, and pedantry is a very serious business.

Related to the gerund is the gerundive which, as its name suggests, is an adjectival form related to the gerund, specifically expressing necessity. Latin being an inflected language, an adjective takes the ending appropriate to the gender of the noun it describes; the gerundive also follows this pattern.

In the ‘loving’ example above, the gerundive form is amandus in a masculine case or, if referring to a female entity, amanda (hence the name Amanda, which means “deserving or requiring love”) or amandum for a neuter noun. In cases where the noun is plural the forms would be amandiamandae, and amanda. Endings for other gerundives formed from other verbs are constructed in a similar fashion depending on their conjugation. An adjective used without a noun usually means a thing with that property, so amanda would mean a feminine entity deserving love.

From this discussion you can see that in Latin amandum could mean either “loving” (gerund) or “a thing to be loved” (gerundive). Latin grammar is sufficiently precise, however, that the actual meaning will be obvious from the context.

As an aside, based on my own experiences in mathematics and physics, the abbreviation `QED’ which is often placed at the end of a proof is short for `Quod Erat Demonstrandum’, meaning `which was required to be shown’ rather than, as I sometimes facetiously write, `Quite Easily Done’.  I’m surprised how many people (especially students) use QED without knowing what it means!

Now, back to referendum. It seems clear to me that this derives from the gerundive and thus means “a thing to be referred” (the thing concerned being of no gender, as is normal in such cases in Latin). So what should be the word for more than one referendum?

I think it depends on the context. The word  referenda implies “more than one thing to be referred” not “a thing to be referred multiple times” because the plural in referenda refers to the things not to the instances of referral. The familiar word agenda is formed precisely this way and it means “(a list of things) to be done”. This is not the desired meaning we want for multiple referrals of the same question, such as a second vote on the same issue, which would have to be referendums in English, as there is no Latin word that encapsulates that particular meaning. This is what I argued here. Referenda is, however, precisely the word needed for March 8th, when there will be a single act of voting on two issues. 

As supporting evidence I quote this source:

…we maintain that there is value in using referendums for multiple events and referenda for multiple propositions.

I rest my case. Any questions?

P.S. I argue for consistency that, if there is only one item on the agenda, it is an agendum.