22 Works

Post-processed data for: Diverse operant control of different motor cortex populations during learning

Nuria Vendrell-Llopis, Ching Fang, Albert Qü, Rui Costa & Jose Carmena
We tested two population of cortical neurons, intra-telencephalic (IT) and extra-telencephalic or pyramidal tract (PT) neurons, as direct neurons for neuroprosthetic control. We labelled different cell-classes in two groups of mice and trained them to modulate the activity of either IT or PT neurons to control a Ca-imaging based brain-machine interface (CaBMI). In addition, we used machine learning and game theory approaches to reverse-engineer the learning outcome and dissect the causal contributions of cell-class, neuronal...

Care Earnings in the United States and European Union: The Role of Social Policy and Labour Market Institutions (LIEPP Working Paper, n°115)

Emanuele Ferragina & Zachary Parolin
Care occupations are strongly gendered and remain relatively poorly paid, particularly in the United States. Prior research points to individual, relational, and market- valuation factors in explaining the relative earnings of care workers. In contrast, this study applies a comparative institutional perspective to investigate cross-national differences in the relative earnings of care workers. Using merged data from the U.S. Current Population Survey and EU-SILC, we find that national variance in labour market and welfare state...

Flexible use of memory by food-caching birds

Marissa Applegate & Dmitriy Aronov
Animals use memory-guided and memory-independent strategies to make navigational decisions. Disentangling the contribution of these strategies to navigation is critical for understanding how memory influences behavioral output. To address this issue, we studied spatial behaviors of the chickadee, a food-caching bird. Chickadees hide food in concealed, scattered locations and retrieve their caches later in time. We designed an apparatus that allows birds to cache and retrieve food at many sites while navigating in a laboratory...

A deglacial hazard cascade exemplified by the landslide, tsunami and outburst flood at Elliot Creek, Southern Coast Mountains, British Columbia, Canada

Marten Geertsema, Brian Menounos, Gemma Bullard, Jonathan Carrivick, John Clague, Chunli Dai, Davide Donati, Goran Ekstrom, Jennifer Jackson, Patrick Lynett, Manuele Pichierri, Andy Pon, Dan Shugar, Doug Stead, Justin Del Bel Belluz, Pierre Friele, Ian Giesbrecht, Derek Heathfield, Tom Millard, Sasha Nasonova, Andrew Schaeffer, Brent Ward, Darren Blaney, Erik Blaney, Camille Brillon … & Meghan Sharp
We describe and model the evolution of a recent landslide and outburst flood in the southern Coast Mountains, British Columbia, Canada. About 18 Mm3 of rock descended 1000 m from a steep valley wall and traveled across the toe of a glacier before entering a 0.6 km2 glacier lake and producing a >100-m high wave. Water overtopped the lake outlet and scoured a 10-km long channel before depositing debris on a 2 km2 fan below...

Trophic complexity alters the diversity–multifunctionality relationship in experimental grassland mesocosms

Krishna Anujan, Shahid Naeem, Sebastian A. Heilpern, Case M. Prager & Brian C. Weeks
Plant diversity has a positive influence on the number of ecosystem functions maintained simultaneously by a community, or multifunctionality. While the presence of multiple trophic levels, or trophic complexity, affects individual functions, the effect of trophic complexity on the diversity-multifunctionality relationship is less well known. To address this issue, we tested whether the independent or simultaneous manipulation of both plant diversity and trophic complexity impacted multifunctionality using a mecocosm experiment from Cedar Creek, Minnesota, USA....

Data from: Constraints on the evolution of toxin-resistant Na,K-ATPases have limited dependence on sequence divergence

Shabnam Mohammadi, Santiago Herrera-Álvarez, Lu Yang, María Del Pilar Rodríguez-Ordoñez, Karen Zhang, Jay F. Storz, Susanne Dobler, Andrew J. Crawford & Peter Andolfatto
A growing body of theoretical and experimental evidence suggests that intramolecular epistasis is a major determinant of rates and patterns of protein evolution and imposes a substantial constraint on the evolution of novel protein functions. Here, we examine the role of intramolecular epistasis in the recurrent evolution of resistance to cardiotonic steroids (CTS) across tetrapods, which occurs via specific amino acid substitutions to the α-subunit family of Na,K-ATPases (ATP1A). After identifying a series of recurrent...

Is Journalistic Truth Dead? Measuring How Informed Voters Are about Political News (LIEPP Working Paper, n°128)

Charles Angelucci & Andrea Rodríguez Prat
How many voters are informed about political news mainstream journalists consider important? We develop a methodology that combines a protocol for identifying major news stories, online surveys, and the estimation of a model that disentangles individual information precision from news story salience and partisanship. We focus on news about U.S. politics in a monthly sample of 1,000 voters repeated 8 times. On average, 85% of individuals are able to distinguish the major real news story...

Cultural Nationalism in Carlos Chávez’s Generation

Claudio Lomnitz
pp. 14-19.

Authority, Identity and Ethics of Data Re-publication and Duplication

Lesley Wyborn , Kirsten Elger , Jens Klump , Kerstin Lehnert & Mingfang Wu
Today, research data is widely available in digital form, datasets are easily accessible online and the dataset creator should consider it advantageous as this leads to greater uptake. However, the downside is that digital datasets can be easily copied, duplicated in multiple places, and re-published through more than one repository or service. Particularly with web services, mirroring resources is a common practice, especially in online GIS packages and dashboards. ‘Copy WMS link’ buttons are common,...

Identification of the diagenetic sedimentary environment and hydrothermal fluid fluxes in Southern Ocean sediments (IODP Exp 382) using B, Si and Sr isotopes in interstitial waters

Valentin Mollé , Sonja Geilert , Bridget Kenlee , Klaus Wallmann , Osamu Seki , Ji-Hwan Hwan , Michael E Weber , Maureen Raymo , Victoria L. Peck , Trevor Williams , Florian Scholz & Expedition 382 Scientists
During IODP Expedition 382, two sites were drilled at 53.2°S at the northern edge of the Scotia Sea and three sites at 57.4°–59.4°S in the southern Scotia Sea within the Atlantic sector of the Southern Ocean. Sediments at both locations alternate between dominant terrigenous components during glacials and dominant biogenic components, carbonate at the northerly sites and opal in the southern Scotia Sea, during interglacials. Here we constrain the geochemical environment in interstitial waters using...

Demographic rates and stature of tree species in 13 sub-tropical forests: annual growth, annual survival, annual recruitment >( 1 cm dbh), stature (max dbh)

Stephan Kambach, Richard Condit, Salomón Aguilar, Helge Bruelheide, Sarayudh Bunyavejchewin, Chia-Hao Chang-Yang, Yu-Yun Chen, George Chuyong, Stuart J. Davies, Sisira Ediriweera, Corneille E. N. Ewango, Edwino S. Fernando, Nimal Gunatilleke, Savitri Gunatilleke, Stephen P Hubbell, Akira Itoh, David Kenfack, Somboon Kiratiprayoon, Yi-Ching Lin, Jean-Remy Makana, Mohizah Bt. Mohamad, Nantachai Pongpattananurak, Rolando Pérez, Lillian Jennifer V. Rodriguez, I-Fang Sun … & Nadja Rüger
Organisms of all species must balance their allocation to growth, survival and recruitment. Among tree species, evolution has resulted in different life-history strategies for partitioning resources to these key demographic processes. Life-history strategies in tropical forests have often been shown to align along a trade-off between fast growth and high survival, i.e. the well-known fast-slow continuum. In addition, an orthogonal trade-off has been proposed between tall stature – resulting from fast growth and high survival...

Intrinsic excitability mechanisms of neuronal ensemble formation

Tzitzitlini Alejandre-García, Samuel Kim, Jesús Pérez-Ortega & Rafael Yuste
Neuronal ensembles are coactive groups of cortical neurons, found in spontaneous and evoked activity, that can mediate perception and behavior. To understand the mechanisms that lead to the formation of ensembles, we co-activated optogenetically and electrically layer 2/3 pyramidal neurons in brain slices from mouse visual cortex, in animals from both sexes, replicating in vitro an optogenetic protocol to generate ensembles in vivo. Using whole-cell and perforated patch-clamp pair recordings we find that, after optogenetic...

Average coseimic slip profiles

Kiran K.S. Thingbaijam, Russ J. Van Dissen, B. E. Shaw & Matt C. Gerstenberger
Despite the potential impact on earthquake rupture forecasts for seismic hazard analysis, derivation of applicable average coseismic slip profiles has received relatively limited attention. Here, we present improved insight using a set of rupture models of past earthquakes. We find that along-strike slip profiles are well approximated by a power-of-sine function with index = 1/2 (i.e. sinesqrt function), corroborating Biasi and Weldon (2006). However, elongated ruptures (with aspect ratios >5.0) have a flatter profile. Additionally,...

Age-specific activation patterns and inter-subject similarity during verbal working-memory maintenance and Cognitive Reserve

Christian Habeck, Yunglin Gazes & Yaakov Stern
Cognitive Reserve, according to a recent consensus definition of the NIH-funded Reserve and Resilience collaboratory (https://reserveandresilience.com/), is constituted by any mechanism contributing to cognitive performance beyond, or interacting with, brain structure in the widest sense. To identity multivariate activation patterns fulfilling this postulate, we investigated a verbal Sternberg fMRI task and imaged 181 people with age coverage in the ranges 20-30 (44 participants) and 55-70 (137 participants). Beyond task performance, participants were characterized in terms...

Decoupled dust deposition and ocean productivity in the Antarctic Zone of the Southern Ocean over the past 1.5 million years

Michael E. Weber , Ian Bailey , Sidney R. Hemming , Yasmina M. Martos , Brendan T. Reilly , Thomas A. Ronge , Stefanie Brachfeld , Trevor Williams , Maureen Raymo , Simon T. Belt , Hendrik Vogel , Victoria Peck , Linda Armbrecht , Alix Cage , Fabricio G. Cardillo , Zhiheng Du , Gerson Fauth , Christopher J. Fogwill , Marga Garcia , Marlo Garnsworthy , Anna Glüder , Michelle Guitard , Marcus Gutjahr , Iván Hernández-Almeida , Frida S. Hoem … & Xufeng Zheng
Southern Ocean paleoceanography provides key insights into how iron fertilization and oceanic productivity developed through Pleistocene ice-ages and their role in influencing the carbon cycle. We report the first high-resolution record of dust deposition and ocean productivity for the Antarctic Zone, close to the main dust source, Patagonia. Our deep-ocean records cover the last 1.5 Ma, thus doubling that from Antarctic ice-cores. We find a ≥10-fold increase in dust deposition during glacials and a ≤5-fold...

Data from: Juvenile experience with male cues triggers cryptic choice mechanisms in adult female redback spiders

Maydianne C.B. Andrade, Aiswarya Baskaran, Maria Daniela Biaggio & Maria Modanu
Female choice may be linked to population density if expected encounter rates with potential mates affects choosiness (energy and risk engaged to express mate preferences). Choosiness should covary with male availability, which could be assessed using social cues available during development. We tested whether exposure of juvenile females to cues of male density affected mechanisms of choosiness of adult Latrodectus hasselti spiders in two experiments simulating natural contexts. Juvenile females were exposed to (1) volatile...

Supporting data from: Characterizing changes in eastern U.S. pollution events in a warming world

George Milly
Risk assessments of air pollution impacts on human health and ecosystems would ideally consider a broad set of climate and emission scenarios, as well as natural internal climate variability. We analyze initial condition chemistry-climate ensembles to gauge the significance of greenhouse-gas-induced air pollution changes relative to internal climate variability, and consider response differences in two models. To quantify the effects of climate change on the frequency and duration of summertime regional-scale pollution episodes over the...

Alignments of chloroplast noncoding regions for context-dependency analysis

Brian Morton
Substitutions between closely related noncoding chloroplast DNA sequences are studied with respect to the composition of the three bases on each side of the substitution, that is the hexanucleotide context. There is about 100-fold variation in rate, amongst the contexts, particularly on substitutions of A and T. Rate heterogeneity of transitions differs from that of transversions, resulting in a more than 200-fold variation in the transitions:transversion bias. The data are consistent with a CpG effect,...

The Discrete Charm of Managed Competition in Health Policy Reform (LIEPP Working Paper, n°123)

Lawrence Brown
The prospect that health care markets, famously resistant to the iron laws of economics, might be "normalized" after all has attracted much attention over the last three decades. Managed competition, a strategy that spearheads this project, proposes to instill new efficiencies in health care systems, without damage to equity and solidarity, with a model that sets market forces within a framework of sophisticated rules designed to avert market failure. This paper seeks to explain why...

OneGeochemistry: Enabling a coordinated online global network of multiple distributed geochemical repositories and databases

Kerstin Annette Lehnert , Lesley Wyborn , Dominik Hezel , Alexander Prent , Kirsten Elger , Geertje ter Maat , Marthe Klöcking & Jens Klump
Since the discipline of ‘geochemistry’ was first defined in 1838, geochemical data has been pervasively acquired and used in the Earth, environmental and planetary sciences and become fundamental for understanding past, present, and future processes in natural systems. Initially, geochemical data was published in hard-copy literature, but as analytical systems became computerised, major digital databases emerged (EarthChem, PetDB, OZCHEM and GEOROC) which revolutionised data access. They have proven the power of re-use of geochemical data...

Edge of Extinction: The COVID-19 Lived Experience of National Pan-Hellenic Council Fraternity Presidents

Claude R. P. Mayo, Alade S. McKen & Ebonee R. Mayo-Mitchell

Longitudinal trends of EHR concepts in pediatric patients

Nicholas Giangreco
The longitudinal nature of the data motivated temporal trend identification in the pediatric EHR datatypes. Over the past three decades (1980-2018), we identified and quantified the temporal trend of 16,460 EHR concepts across measurement, visit, diagnosis, drug, and procedure datatypes.

Registration Year

  • 2022
    22

Resource Types

  • Dataset
    12
  • Text
    5
  • Other
    3
  • Journal Article
    2

Affiliations

  • Columbia University
    22
  • Oregon State University
    2
  • Australian National University
    2
  • Texas A&M University
    2
  • British Antarctic Survey
    2
  • Hokkaido University
    2
  • GEOMAR Helmholtz Centre for Ocean Research Kiel
    2
  • Utrecht University
    2
  • Thammasat University
    1
  • Keele University
    1