- Last 7 days
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twitter.com twitter.com
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ReconfigBehSci on Twitter: ‘RT @d_spiegel: Excellent new Covid RED dashboard from UCL https://t.co/wHMG8LzTUb Would be good to also know (a) how many contacts isolate…’ / Twitter. (n.d.). Retrieved 6 March 2021, from https://twitter.com/SciBeh/status/1323316018484305920
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- Feb 2021
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twitter.com twitter.com
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ReconfigBehSci. “Launching a New SciBeh Tool- the Video-Viewer: Https://T.Co/LhfABNTBJM Over the Pandemic, @SciBeh Has Suggested Many a Great Webinar, Video, Lecture or Interview. but on Twitter Material Is Gone in a Flash. So We’ve Collected It in One Place, to Search, and View. Enjoy!” Tweet. @SciBeh (blog), February 8, 2021. https://twitter.com/SciBeh/status/1358798007341363203.
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psyarxiv.com psyarxiv.com
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Lakens, D. (2021). Sample Size Justification. PsyArXiv. https://doi.org/10.31234/osf.io/9d3yf
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psyarxiv.com psyarxiv.com
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Perez Santangelo, A., & Solovey, G. (2020, November 9). Time to Shine: Reliable Response-Timing Using R-Shiny for Online Experiments. https://doi.org/10.31234/osf.io/nuxdg
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gdprhub.eu gdprhub.eu
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information that is transferred
Stage of processing.
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- Jan 2021
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bandcamp.com bandcamp.com
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Terrifying in its bleakness, Elegy is a record dedicated to its portrayal of loneliness, telling a story with firm roots in tension contextualised by the title’s disheartening implications.
A dedicated sponge in the blank countenance of empty space and flat time, I'd say.
Tags
Annotators
URL
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register.gotowebinar.com register.gotowebinar.com
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American Psychological Association. (2020). Adapting your research methods in response to COVID-19.
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- Oct 2020
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groups-in-graphs.corinna-vehlow.com groups-in-graphs.corinna-vehlow.com
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alpha.austin.gov alpha.austin.gov
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topic collection content
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github.com github.com
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rehype is an ecosystem of plugins for processing HTML to do all kinds of things: format it, minify it, or wrap it programmatically into a document.
Tags
Annotators
URL
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digest.bps.org.uk digest.bps.org.uk
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Conspiracy Theories And Winter Wellbeing: The Week’s Best Psychology Links. (2020, October 2). Research Digest. https://digest.bps.org.uk/2020/10/02/conspiracy-theories-and-winter-wellbeing-the-weeks-best-psychology-links/
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- Sep 2020
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www.psychologicalscience.org www.psychologicalscience.org
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Online Research: From Funding to Data Collection. (n.d.). Association for Psychological Science - APS. Retrieved September 25, 2020, from https://www.psychologicalscience.org/news/online-research.html
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www.ncbi.nlm.nih.gov www.ncbi.nlm.nih.gov
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Romanini, Daniele, Sune Lehmann, and Mikko Kivelä. ‘Privacy and Uniqueness of Neighborhoods in Social Networks’. ArXiv:2009.09973 [Physics], 21 September 2020. http://arxiv.org/abs/2009.09973.
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www.youtube.com www.youtube.com
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Susan Athey, July 22, 2020. (2020, August 2). https://www.youtube.com/watch?v=hqTOPrUxDzM
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books.google.com books.google.com
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Morland, P. (2015). Risk Wise: Nine Everyday Adventures. Profile Books.
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- Aug 2020
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twitter.com twitter.com
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Mats—COVIDDash.org on Twitter. (n.d.). Twitter. Retrieved August 29, 2020, from https://twitter.com/nuanceORDEATH/status/1279144399897866248
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docs.google.com docs.google.com
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University_covid_dashboards. (n.d.). Google Docs. Retrieved August 29, 2020, from https://docs.google.com/spreadsheets/d/1orYcRrRTQ6SiCJ7GXObZg1el70YeIHmjJEkrYFj40DA/edit?usp=sharing&usp=embed_facebook
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climatefeedback.org climatefeedback.org
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Scientific Reference to Reliable Information on Climate Change. (2015, February 9). Climate Feedback. https://climatefeedback.org/
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csbs.research.illinois.edu csbs.research.illinois.edu
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Understanding Contemporary Challenges – Center for Social & Behavioral Science. (n.d.). Retrieved August 26, 2020, from https://csbs.research.illinois.edu/understandingcontemporarychallenges/
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csbs.research.illinois.edu csbs.research.illinois.edu
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www.npr.org www.npr.org
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Short Wave. (n.d.). NPR.Org. Retrieved August 26, 2020, from https://www.npr.org/podcasts/510351/short-wave
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zika.ispm.unibe.ch zika.ispm.unibe.ch
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Living Evidence on COVID-19. (n.d.). Retrieved August 24, 2020, from https://zika.ispm.unibe.ch/assets/data/pub/search_beta/
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stackoverflow.blog stackoverflow.blog
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ZGC is a new garbage collector that can handle massive heap sizes, up to 16 terabytes in size, without an increase in pause time. For big data applications that may be processing massive amounts of data in-memory, keeping garbage collection pauses down below 10ms means that processing speed on large data sets won’t be stalled out by limitations in the language.
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- Jul 2020
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docs.google.com docs.google.com
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COVID-19 Social Science Tracker - Google Sheets
Tags
- social media
- mental health
- tracker
- unofficial
- conspiracy theory
- social science
- sheets
- is:other
- isolation
- analysis
- data collection
- publication
- uncertainty
- infection
- social distancing
- spreadsheet
- behavior
- community
- international
- preprint
- lang:en
- social norm
- misinformation
- healthcare
- medicine
- government
- COVID-19
- policy
- research
Annotators
URL
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Betsch, C. How behavioural science data helps mitigate the COVID-19 crisis. Nat Hum Behav (2020). https://doi.org/10.1038/s41562-020-0866-1
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lucy.shinyapps.io lucy.shinyapps.io
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Submit a COVID 19 Dashboard. (n.d.). Google Docs. Retrieved July 19, 2020, from https://docs.google.com/forms/d/e/1FAIpQLSdcq-I98VZeA7NjUxBvqMGmdg5ahRucDVwxo057E-x9BmeM-Q/viewform?embedded=true&usp=embed_facebook
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twitter.com twitter.com
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Maarten van Smeden on Twitter: “This is a kind reminder that most issues with data (e.g. measurement error, incomplete data, confounding, selection) do not disappear just because you have N = ginormous” / Twitter. (n.d.). Twitter. Retrieved July 19, 2020, from https://twitter.com/MaartenvSmeden/status/1283313496382373890
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www.nationalgeographic.com www.nationalgeographic.com
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Coronavirus Dispatches. (n.d.). Photography. Retrieved July 18, 2020, from https://www.nationalgeographic.com/photography/coronavirus-dispatches/
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www.nationalgeographic.com www.nationalgeographic.com
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Coronavirus News and Coverage. (n.d.). Science. Retrieved July 18, 2020, from https://www.nationalgeographic.com/science/coronavirus-coverage/
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innovationinpolitics.eu innovationinpolitics.eu
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Coping with the Crisis | Introduction. (n.d.). The Innovation in Politics Institute. Retrieved July 18, 2020, from https://innovationinpolitics.eu/en/coping-with-the-coronavirus-crisis/introduction/
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covid-19.iza.org covid-19.iza.org
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COVID-19 and the Labor Market. (n.d.). IZA – Institute of Labor Economics. Retrieved July 18, 2020, from https://covid-19.iza.org/publications/dp13500/
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admin.nber.org admin.nber.org
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Research Search Results for “Covid.” (n.d.). Retrieved July 18, 2020, from https://admin.nber.org/custom?q=Covid&restrict_papers=yes&client=test3_fe&proxystylesheet=test3_fe&site=default_collection&entqr=0&ud=1&output=xml_no_dtd&oe=UTF-8&ie=UTF-8&btnG=Search
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COVID-19: Relevant Calls for Papers from APA Journals. (n.d.). Https://Www.Apa.Org. Retrieved July 1, 2020, from https://www.apa.org/pubs/journals/resources/covid-19-calls-for-papers
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- Jun 2020
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psyarxiv.com psyarxiv.com
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Yamada, Y. (2020). Micropublishing during and after the COVID-19 era [Preprint]. PsyArXiv. https://doi.org/10.31234/osf.io/8fum4
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COVID-19 is a threat to waste pickers. Here’s how to help them. (n.d.). World Economic Forum. Retrieved June 29, 2020, from https://www.weforum.org/agenda/2020/06/covid19-is-a-threat-to-waste-pickers-heres-how-to-help-them/
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www.psychologicalscience.org www.psychologicalscience.org
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Understanding Loneliness Through Science. (n.d.). Association for Psychological Science - APS. Retrieved June 26, 2020, from https://www.psychologicalscience.org/news/releases/understanding-loneliness-through-science.html
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www.youtube.com www.youtube.com
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Using Smartphone, Social Media, and Sensor Data for Psychological Research (May 13, 2020). (n.d.). Retrieved June 25, 2020, from https://www.youtube.com/watch?time_continue=3&v=vSvnJzCfstU&feature=emb_logo
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www.newscientist.com www.newscientist.com
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Stokel-Walker, C. (n.d.). Concerns raised about pubs collecting data for coronavirus tracing. New Scientist. Retrieved June 25, 2020, from https://www.newscientist.com/article/2246965-concerns-raised-about-pubs-collecting-data-for-coronavirus-tracing/
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www.unforgettable.me www.unforgettable.me
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Register here: (n.d.). Google Docs. Retrieved May 5, 2020, from https://docs.google.com/forms/d/e/1FAIpQLSdqXWlf0sbRR9wSH_42shm4vU4tHcCe0bQZuC-6ngHaI4I32w/viewform??embedded=true&usp=embed_facebook
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blogs.lse.ac.uk blogs.lse.ac.uk
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Carrying out qualitative research under lockdown – Practical and ethical considerations. (2020, April 20). Impact of Social Sciences. https://blogs.lse.ac.uk/impactofsocialsciences/2020/04/20/carrying-out-qualitative-research-under-lockdown-practical-and-ethical-considerations/
Tags
- pandemic
- is:blog
- qualitative research
- study design
- lang:en
- data collection
- ethics
- COVID-19
- technique
- scientific practice
Annotators
URL
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psyarxiv.com psyarxiv.com
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Raihani, N., & de-Wit, L. (2020, April 21). Factors Associated With Concern, Behaviour & Policy Support in Response to SARS-CoV-2. https://doi.org/10.31234/osf.io/8jpzc
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Zelner, J., Riou, J., Etzioni, R., & Gelman, A. (2020). Accounting for Uncertainty During a Pandemic. ArXiv:2006.08745 [Physics, q-Bio, Stat]. http://arxiv.org/abs/2006.08745
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OSF Coronavirus Outbreak Research Collection
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www.frontiersin.org www.frontiersin.org
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Coronavirus Disease (COVID-19): Psychological, Behavioral, Interpersonal Effects, and Clinical Implications for Health Systems | Frontiers Research Topic. (n.d.). Retrieved June 11, 2020, from https://www.frontiersin.org/research-topics/13561/coronavirus-disease-covid-19-psychological-behavioral-interpersonal-effects-and-clinical-implication
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featuredcontent.psychonomic.org featuredcontent.psychonomic.org
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Okan, Y. (2020, May 22). From a tweet to Reddit and beyond: The road to a global behavioral science SWAT team. Psychonomic Society Featured Content. https://featuredcontent.psychonomic.org/from-a-tweet-to-reddit-and-beyond-the-road-to-a-global-behavioral-science-swat-team/
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fivethirtyeight.com fivethirtyeight.com
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Koerth, M. (2020, March 31). Why It’s So Freaking Hard To Make A Good COVID-19 Model. FiveThirtyEight. https://fivethirtyeight.com/features/why-its-so-freaking-hard-to-make-a-good-covid-19-model/
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twitter.com twitter.com
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Cheshire, J. (2020, May 18). "John Snow's map of cholera looked as dull as (cholera filled) dishwater compared to his competitors...His brilliance was a solid data collection & then a simple map presenting what he knew. Each death marked in black and white. Here's a lesson for COVID-19 dataviz... 1/11" Twitter. https://twitter.com/spatialanalysis/status/1262338373253042178
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- May 2020
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Crchartier, ~. (2020, March 13). The PSA Calls for Rapid and Impactful Study Proposals on COVID-19. Psychological Science Accelerator. https://psysciacc.org/2020/03/13/the-psa-calls-for-rapid-and-impactful-study-proposals-on-covid-19/
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www.sciencedirect.com www.sciencedirect.com
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Lourenco, S. F., & Tasimi, A. (2020). No Participant Left Behind: Conducting Science During COVID-19. Trends in Cognitive Sciences, S1364661320301157. https://doi.org/10.1016/j.tics.2020.05.003
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www.nejm.org www.nejm.org
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Chu, H. Y., Englund, J. A., Starita, L. M., Famulare, M., Brandstetter, E., Nickerson, D. A., Rieder, M. J., Adler, A., Lacombe, K., Kim, A. E., Graham, C., Logue, J., Wolf, C. R., Heimonen, J., McCulloch, D. J., Han, P. D., Sibley, T. R., Lee, J., Ilcisin, M., … Bedford, T. (2020). Early Detection of Covid-19 through a Citywide Pandemic Surveillance Platform. New England Journal of Medicine, NEJMc2008646. https://doi.org/10.1056/NEJMc2008646
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www.mozilla.org www.mozilla.org
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Lean Data Practices Staying lean and being smart about how you collect data can build trust with your users and ultimately help grow your business.
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- Apr 2020
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en.wikipedia.org en.wikipedia.org
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A website (also written as web site) is a collection of web pages and related content that is identified by a common domain name and published on at least one web server
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www.thelancet.com www.thelancet.com
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Mullard, A. (2020). Flooded by the torrent: The COVID-19 drug pipeline. The Lancet, 395(10232), 1245–1246. https://doi.org/10.1016/S0140-6736(20)30894-1
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psyarxiv.com psyarxiv.com
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Olapegba, P. O., Ayandele, O., Kolawole, S. O., Oguntayo, R., Gandi, J. C., Dangiwa, A. L., … Iorfa, S. K. (2020, April 12). COVID-19 Knowledge and Perceptions in Nigeria. https://doi.org/10.31234/osf.io/j356x
Tags
- precaution
- China
- lockdown
- news
- data collection
- media
- is:preprint
- descriptive statistics
- infection
- symptom
- Nigeria
- behavior
- information
- transmission
- perception
- lang:en
- health information
- public health
- misinformation
- misconception
- prevention
- COVID-19
- knowledge
- general public
- questionnaire
Annotators
URL
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psysciacc.org psysciacc.org
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Psychological Science Accelerator. (2020 March 21). Join the PSA's rapid-response COVID-19 project. Psysciacc.org. https://psysciacc.org/2020/03/21/join-the-psas-rapid-response-covid-19-project/.
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emljames.github.io emljames.github.io
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James, E. Tutorial Home. Github.io. https://emljames.github.io/GorillaR/
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arxiv.org arxiv.org
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Nanni, M., Andrienko, G., Boldrini, C., Bonchi, F., Cattuto, C., Chiaromonte, F., Comandé, G., Conti, M., Coté, M., Dignum, F., Dignum, V., Domingo-Ferrer, J., Giannotti, F., Guidotti, R., Helbing, D., Kertesz, J., Lehmann, S., Lepri, B., Lukowicz, P., … Vespignani, A. (2020). Give more data, awareness and control to individual citizens, and they will help COVID-19 containment. ArXiv:2004.05222 [Cs]. http://arxiv.org/abs/2004.05222
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www.cell.com www.cell.com
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Callaghan, S. (2020). COVID-19 Is a Data Science Issue. Patterns, 100022. https://doi.org/10.1016/j.patter.2020.100022
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reutersinstitute.politics.ox.ac.uk reutersinstitute.politics.ox.ac.uk
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Nielsen, R.K., Fletcher, R., Newman, N., Brennen, S., Howard, P.N. (2020 April 15). Navigating the ‘infodemic’: how people in six countries access and rate news and information about coronavirus. Reuters Institute. https://reutersinstitute.politics.ox.ac.uk/infodemic-how-people-six-countries-access-and-rate-news-and-information-about-coronavirus
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users.ox.ac.uk users.ox.ac.uk
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Bird, S., Nielsen, B. (2020 April 20). Now-casting of Covid-19 deaths in English Hospitals. http://users.ox.ac.uk/~nuff0078/Covid/index.htm
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www.thelancet.com www.thelancet.com
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Holmes, E. A., O’Connor, R. C., Perry, V. H., Tracey, I., Wessely, S., Arseneault, L., Ballard, C., Christensen, H., Cohen Silver, R., Everall, I., Ford, T., John, A., Kabir, T., King, K., Madan, I., Michie, S., Przybylski, A. K., Shafran, R., Sweeney, A., … Bullmore, E. (2020). Multidisciplinary research priorities for the COVID-19 pandemic: A call for action for mental health science. The Lancet Psychiatry, S2215036620301681. https://doi.org/10.1016/S2215-0366(20)30168-1
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doi.org doi.org
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Atchison, C. J., Bowman, L., Vrinten, C., Redd, R., Pristera, P., Eaton, J. W., & Ward, H. (2020). Perceptions and behavioural responses of the general public during the COVID-19 pandemic: A cross-sectional survey of UK Adults [Preprint]. Public and Global Health. https://doi.org/10.1101/2020.04.01.20050039
Tags
- economy
- demographics
- policy
- quarentine
- survey
- lockdown
- face mask
- data collection
- statistics
- UK
- transmission dynamics
- is:preprint
- response
- social distancing
- risk perception
- behavior
- perception
- lang:en
- adult
- self-isolation
- government
- prevention
- COVID-19
- minority
- modeling
- handwashing
- cross-sectional
Annotators
URL
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www.reddit.com www.reddit.com
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r/BehSciResearch—Creating a list of the resource collections on COVID-19 already out there (aggregation of aggregators). (n.d.). Reddit. Retrieved April 16, 2020, from https://www.reddit.com/r/BehSciResearch/comments/fp75za/creating_a_list_of_the_resource_collections_on/
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www.wwtf.at www.wwtf.atCOVID-191
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COVID-19. (n.d.). Retrieved April 17, 2020, from https://www.wwtf.at/covid/index.php?lang=EN
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- Feb 2020
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www.geospatialworld.net www.geospatialworld.net
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GIS and Spatial Analytics Market: Global Size
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- Sep 2019
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arthurperret.fr arthurperret.fr
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the absence of a social contract
actual level of consent of individuals being documented (and by whom? by private corporations, mostly)
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- Jul 2019
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www.flowerbrackets.com www.flowerbrackets.com
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Garbage collection in java
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- Jun 2018
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forboredom.realtimecollective.com forboredom.realtimecollective.com
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organizational form of the list
Listing and collecting items to put them back into their original function rather than remove them from their original function.
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forboredom.realtimecollective.com forboredom.realtimecollective.com
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wasted lives, wastebands, wasted bodies, limbs, sewers, dumps, landfills, junk, trash, garbage, shit
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- May 2018
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www.taiwanmobile.com www.taiwanmobile.com
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依主管機關公告之個人資料類別(包括但不限於載於各項申請文件之客戶、其代理人及法定代理人之個人資料等)
「依主管機關公告之個人資料類別」,到底是什麼鬼啊
Tags
Annotators
URL
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www.taiwanmobile.com www.taiwanmobile.com修訂條文1
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收集何種類型用戶資料並未明確陳列說明
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- Mar 2018
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Actively seek out the work of Indigenous creators for inclusion in their collectionsand in addition, institute a robust deselection system that recognizes cultural appropriation and historical inaccuracy.
This is a trickier one in an academic library. Perhaps a future project could be to do an exploratory essay on historical collections and the challenges they pose?
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3.Seek direction from communities on proper cultural protocols regarding access and care of their culturally sensitive knowledge and materials; developing specific protocols for dealing with Indigenous knowledge/materials within their collections by developing a Collection Management Policy that reflects and integrates Indigenous values; and if warranted an Indigenous knowledge agreement should be discussed with the originating community and agreed to.4.Respect the Indigenous cultural concept of copyright regardingIndigenous history or heritage, which isoften located in but not limited to oral traditions, songs, dance, storytelling, anec
These need to factor into present and future negotiations when purchasing content about Indigenous peoples.
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process of annotation respects and renders visible the experiences of those people whose lives have been documented by state organizations and thus can build trust with Indigenous peoples.
Existing collections such as North American Indian Thought and Culture could greatly benefit from this sort of retroactive description. For collections that are already owned, coordinated efforts by those with purchasing/institutional power would be needed. Also conversations "on the trade show floor" with companies such as Gale and Adam Matthews would be beneficial.
Example: the work of Edward S. Curtis / and the digital repatriation model (referenced on p. 33)
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ideologically-biased terminology
See Frontier Life as an example.
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Provide language collections
Purchase/stream language instruction tools.
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www.atlasobscura.com www.atlasobscura.com
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Yale Collection of Musical Instruments
This is so cool. I highly recommend trying to get a tour.
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project.realtimecollective.com project.realtimecollective.com
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Knoll workstation fabric panel, 3'6" by 2', with crepe Knoll workstation fabric panel, 3'6" by 2'6", with crepe Knoll workstation fabric panel, 3'6" by 3'6", with crepe BPI workstation 1/2 plexiglass panel, 5'6" by 2'6"
List of objects: connection to The Pale King and Zero Kerning by Craig Dworkin
Similar goal? Collecting to detach from original function?
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project.realtimecollective.com project.realtimecollective.com
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desk, a chair, a pencil, some memos, some forms, an unending stream of tax returns in need of examination, and a clock.
Link to Zero Kerning by Craig Dworkin - collecting objects removes them from their function.
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- Dec 2017
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project.realtimecollective.com project.realtimecollective.com
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a desk, a chair, a pencil, some memos, some forms, an unending stream of tax returns in need of examination, and a clock
lists of objects, collecting objects
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- Oct 2017
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rampages.us rampages.us
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A Python script was used to download tweets through Twitter API.
Data collection method to collect data/tweets from Twitter. They say that the data set has 125,907 unique tweets. I think they didn't include any re-tweets as well.
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quod.lib.umich.edu quod.lib.umich.edu
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e great tax farmers established hereditary rights over dozens of villages, in which they acted as virtual landlords and patrons. In addition to collecting taxes from the peasants they took care of various administrative tasks, mediated local disputes, and lent money on a large scale. Large stocks of food came into their possession as tax payments, giving them a highly profitable control over the grain supply to the city.
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The most lucrative and influential government positions involved tax collection.
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- May 2016
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books.google.ca books.google.ca
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p. 6 On knowledge fetishisation. Note he is writing in the period 1995-2000, before it became absolutely clear that this was vanishing and that it would become a fetish:
One purpose [for acquiring information[ is simply possession and the satisfaction it gives; witness the pride some people take in their phenomenal memory for trivia, their extensive libraries, their collections of compact disks, maps, or computer programs. Possessing information also confers prestige. Erudition and especially initiation into the esoteric knowledge of a small sect or secret society--Freemasons, cosmologists, and the like--have conferred prestige and awed the ignorant throughout history.
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- Apr 2016
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www.irishtimes.com www.irishtimes.com
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Poetry for posterity: the Irish Poetry Reading Archive launches
Videos as well as digitised versions of the poets' manuscripts are available at the Irish Poetry Reading Collection on the UCD Digital Library, at https://digital.ucd.ie/view/ucdlib:38488. See also coverage at the UCD Library Blog, https://ucdlib.wordpress.com/2015/12/02/irish-poetry-reading-archive-launches/.
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digital.ucd.ie digital.ucd.ie
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See the Irish Times coverage of the launch of the Irish Poetry Reading Archive: http://www.irishtimes.com/culture/books/poetry-for-posterity-the-irish-poetry-reading-archive-launches-1.2450480
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- Aug 2015
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manishearth.github.io manishearth.github.io
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Stdlib support for a global Trace trait that everyone derives would be awesome.
The issue of wanting to augment structs from external crates with additional traits seems like a pretty generic problem. Seems a shame to solve it only for GC tracing.
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- Jul 2015
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www.openculture.com www.openculture.com
- Jan 2014
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blogs.msdn.com blogs.msdn.com
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A lot of people seem to think that heap allocation is expensive and stack allocation is cheap. They are actually about the same, typically. It’s the deallocation costs – the marking and sweeping and compacting and moving memory from generation to generation – that are massive for heap memory compared to stack memory.
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This sketch is complicated by the fact that there are actually three such arenas; the CLR collector is generational. Objects start off in the “short lived” heap. If they survive they eventually move to the “medium lived” heap, and if they survive there long enough, they move to the “long lived” heap. The GC runs very often on the short lived heap and very seldom on the long lived heap; the idea is that we do not want to have the expense of constantly re-checking a long-lived object to see if it is still alive. But we also want short-lived objects to be reclaimed swiftly.
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When a garbage collection is performed there are three phases: mark, sweep and compact. In the “mark” phase, we assume that everything in the heap is “dead”. The CLR knows what objects were “guaranteed alive” when the collection started, so those guys are marked as alive. Everything they refer to is marked as alive, and so on, until the transitive closure of live objects are all marked. In the “sweep” phase, all the dead objects are turned into holes. In the “compact” phase, the block is reorganized so that it is one contiguous block of live memory, free of holes.
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