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#quantitative

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Reading Material With Lunch, Etc – Getting Back To My Roots
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doi.org/10.4324/9780429270284 | Thornes, J. B., Brunsden, D. (1977). Geomorphology and time. London: Methuen
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I saw this book on another post - and so went and found a copy at a 2nd hand book shop…
Looking forward to lunches at work with a cup of tea and maybe a couple of rainy Sundays at home…
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#geomorphology #text #book #landforms #learning #refamiliarisation #readingforpleasure #framework #model #processes #geology #water #hydrology #weather #climate #erosion #time #spatialanalysis #spatiotemporal #temporal #qualitative #quantitative #change #stochastic #evolution

A new spike-in-based method for quantitative metabarcoding of soil fungi and bacteria

link.springer.com/article/10.1

SpringerLinkA new spike-in-based method for quantitative metabarcoding of soil fungi and bacteria - International MicrobiologyMetabarcoding is a powerful tool to characterize biodiversity in biological samples. The interpretation of taxonomic profiles from metabarcoding data has been hindered by their compositional nature. Several strategies have been proposed to transform compositional data into quantitative data, but they have intrinsic limitations. Here, I propose a workflow based on bacterial and fungal cellular internal standards (spike-ins) for absolute quantification of the microbiota in soil samples. These standards were added to the samples before DNA extraction in amounts estimated after qPCRs, to target around 1–2% coverage in the sequencing run. In bacteria, proportions of spike-in reads in the sequencing run were very similar (< 2-fold change) to those predicted by the qPCR assessment, and for fungi they differed up to 40-fold. The low variation among replicates highlights the reproducibility of the method. Estimates based on multiple bacterial spike-ins were highly correlated (r = 0.99). Procrustes analysis evidenced significant biological effects on the community composition when normalizing compositional data. A protocol based on qPCR estimation of input amounts of cellular spikes is proposed as a cheap and reliable strategy for quantitative metabarcoding of biological samples.
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Susan McVie, Prof of Quantitative #Criminology at University of Edinburgh researches a wide range of topics & invites PhD applications on:

*youth crime & justice
*violence & homicide
*developmental crim/criminal careers
*stop & search
*crime trends & patterns
*assaults against police
*policing & pandemic

research.ed.ac.uk/en/persons/s

University of Edinburgh Research ExplorerSusan McVie

The piranha problem: Large effects swimming in a small pond.
Christopher Tosh, Philip Greengard, Ben Goodrich, Andrew Gelman, @avehtari, @djhsu
2 Apr 2024
arxiv.org/abs/2105.13445

In a lot of social science research, small, random factors are reported as having large effects on social and political attitudes and behavior (social priming, hormonal levels,parental socioeconomic status, weather, ...). Studies have claimed to find large effects from these and other inputs.

The results show that it would be extremely unlikely to have all these large effects coexisting—they would have to almost exactly cancel each other out.

arXiv.orgThe piranha problem: Large effects swimming in a small pondIn some scientific fields, it is common to have certain variables of interest that are of particular importance and for which there are many studies indicating a relationship with different explanatory variables. In such cases, particularly those where no relationships are known among the explanatory variables, it is worth asking under what conditions it is possible for all such claimed effects to exist simultaneously. This paper addresses this question by reviewing some theorems from multivariate analysis showing that, unless the explanatory variables also have sizable dependencies with each other, it is impossible to have many such large effects. We discuss implications for the replication crisis in social science.

New #introduction: I’m the Mark Andrews Fellow in Book Science at OBNS (Old Books New Science) Lab, University of Toronto, and a #MedievalManuscripts scholar and cataloguer. My research mainly focuses on later #medieval European #manuscripts with an emphasis on scientific and #quantitative methods, #materiality, and provenance studies. 📚 📜 🔬 📊
#BookScience #codicology #palaeography #BookHistory #HeritageScience #parchment #DigitalHumanities #quant #statistics

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And here is the code and data that the article and the blog posts are based on. We're happy to hear your thoughts. There is so much more to explore by combining #quantitative/computational and #qualitative/hermeneutical methods in the history of #SociolegalStudies. doi.org/10.5281/zenodo.1080772 doi.org/10.5281/zenodo.8389925

Zenodocboulanger/jls-bibliometry: v1.0.0First public release at time of paper publication

Julie #Billaud: Administrative techniques devised to engage parties to a conflict "are changing as a result of external sources of pressure for ‘evidence-based programming’, turning personalised case-based monitoring into a new form of ‘audit culture’ based on statistical evidence. Paradoxically, relying on numbers to realise the utopia of ‘humanising war’ makes the very ‘humans’ who are supposed to benefit from it disappear from view."

researchgate.net/publication/3 @ethics @sociology #RedCross #conflict #bureaucracy #humanitarian #quantification #technocracy #quantitative

An #introduction:

I specialize in #quantitative #imageAnalysis, mostly applied to #microscopy, and mostly in #biomedical applications.

I’ve been doing this for 25+ years. I used to have a tenured university position, and moved to industry about 7 years ago. Industry is just like academia, but with fewer students, fewer grants, and more secrecy.

Check out diplib.org

I love good #music, good #food, and building models (shoutout to #Lego, #MetalEarth and #UGears).

DIPlibDIPlibQuantitative Image Analysis in C++, MATLAB and Python

#introduction and my first own 🦣 #toot:

I'm a social scientist interested in #attitudes toward #immigration & #refugees, effects of #media and #PolComm, using #quantitative, #TextAsData & #computational methods. For more check: czymara.com/research

Currently, I am a #postoc at U #TelAviv & GoetheU #Frankfurt.

I'm mostly here to check new #research and recent developments in #academia, but also up for cheeky memes and bad puns.

@sociology @migration @politicalscience @migrationresearch

Dr. Christian S. CzymaraResearch & Publications

Re-#Introduction after moving to datasci.social 🥳

We are NERDS (NEtwoRks, Data, and Society), at #ITU #Copenhagen, researching #NetworkScience and #DataScience applications to #social systems. We are #interdisciplinary researchers who focus on #quantitative #research in #ComputationalSocialScience, #SocialNetworks and #dynamics, #MultiplexNetworks, #Sustainability, #Mobility, #DataViz, and #ComplexSystems.

We are also allergic to #bullying

More: nerds.itu.dk/about/
Cheers!

#introduction
Hi, I am a #quantitative #ecologist. I plan to use :mastodon: to keep track of cool research, stumble upon new #biology or #math, and every now and then find obscure modelling references from the 80s. I care about doing my analyses slow, reproducible research and fair publishing.

I am especially interested in #bioticinteractions, #demography, and the interplay between them. And increasingly in #stats techniques to infer robust #biodiversity trends.

#introduction I'm a Post-doc working on mathematical and statistical model of malaria and COVID-19. I was actually trained as field marine ecologist, and only started picking up on my quantitative skills during my PhD in 2016, in which I drifted towards #infectious disease. Nevertheless, I love both #epidemiology and #ecology word, and hope to contribute to both domains using my #computational and #quantitative skills. I am #rstats enthusiast, but also speak #python and #cpp if I have to 😅

Hello sciences.social - here's my #introduction #introductions

I'm a professor in the #Sociology of #Architecture at the #Bartlett School of Architecture at UCL.

I'm researching the relationship between buildings and people with an interest in #layout, #spatialdesign and #evidenceBasedDesign. My main expertise is in #offices, #hospitals and #schools.
I use both #qualitative and #quantitative methods focusing on #observation, #spacesyntax and #SocialNetworkAnalysis

12+ months of #LongCovid

I didn't do an #introduction post when I joined scholar.social 2.5 years ago! I'm a sociologist in #California. I teach & research about #movements, #inequality, #politics, #trust, #anarchism, and others. Most of my work is #quantitative, but not all. I write journal articles & other stuff, too.

I have a Twitter account (twitter.com/dmwilliamsSOC), but would love if we all could migrate away from such corporate-run systems. Until then, I've been posting here things about stuff I read and write.

X (formerly Twitter)Dana Williams (@dmwilliamsSOC) on XSociologist | co/Author of Black Flags & Soc. Movements | Anarchy & Society | https://t.co/oq0MbXpD1L | Tweet about things I read+write | https://t.co/7OBQyBsf3J | Union