Results 201 to 210 of about 29,477 (263)

A dataset encompassing length-at-age data of early and adult stages of geoduck clam <i>Panopea globosa</i>. [PDF]

Data Brief
Luquin-Covarrubias MA, González-Peláez SS, Zepeda-Benítez VY, Morales-Bojórquez E, Iturrios MDS, Hernández-Padilla JC.   +5 more
europepmc   +1 more source

The Herfindahl neutral point: A firm‐level threshold for managing market concentration with evidence from US hog packing

American Journal of Agricultural Economics, EarlyView.
Abstract This paper derives a firm‐level threshold, the Herfindahl Neutral Point, from the standard concentration index used in merger review. At this threshold, a marginal expansion leaves the index unchanged. Firms below the threshold reduce concentration when they expand; firms above it increase concentration.
Andrew J. Keller, Krishna P. Paudel
wiley   +1 more source

Aspiration and silent aspiration in Niemann-Pick disease type C1: longitudinal findings from the NIH natural history study. [PDF]

Orphanet J Rare Dis
Solomon BI, Munoz AM, Borruso A, Sinaii N, Farhat N, Alexander D, Labor DA, Do AD, Porter FD.   +8 more
europepmc   +1 more source

Preferential trading in agriculture: New insights from a structural gravity analysis and machine learning

American Journal of Agricultural Economics, EarlyView.
Abstract Preferential trade agreements (PTAs) contain various non‐tariff provisions, yet identifying their trade effects remains challenging because these commitments are high‐dimensional and strongly correlated within agreements. We estimated a theory‐consistent structural gravity model with domestic flows for 26 agricultural subsectors over 1988–2017
Dongin Kim, Sandro Steinbach
wiley   +1 more source

Visit-to-visit systolic blood pressure variability, blood pressure treatment intensity, and cognitive decline. [PDF]

Alzheimers Dement
Qiao Y, Sun Z, Ji X, Markus HS, Zhao W.
europepmc   +1 more source

Firm turnover under asymmetric information: Tanzania's agro‐dealer sector

American Journal of Agricultural Economics, EarlyView.
Abstract We study firm turnover (i.e., entry and exit) and its consumer implications in a market characterized by asymmetric information. Using a three‐round census of agro‐dealers in Tanzania's Morogoro Region, we document annual firm entry and exit rates of 33% and 17%, respectively.
Alix Naugler, Hope Michelson, Sarah Janzen, Christopher Magomba   +3 more
wiley   +1 more source

Divergent growth and wood anatomical responses of European larch and Swiss stone pine to climate variability at alpine treeline ecotones. [PDF]

Front Plant Sci
Marotta F, Tumajer J, Begović K, Jevšenak J, Kuželová H, Lexa M, Mašek J, Obojes N, Rydval M, Treml V, Lange J.   +10 more
europepmc   +1 more source

Using pre‐ and post‐entry data to identify the effect of ethanol plant entry on the spatial pattern of corn prices: A study in Indiana

American Journal of Agricultural Economics, EarlyView.
Abstract We estimate the long‐run effect of ethanol plant entry on local corn prices using a long‐horizon difference‐in‐differences framework that combines matching with fixed effects while explicitly accounting for treatment intensity and spatial heterogeneity.
Jinho Jung, Juan P. Sesmero, Ralph Siebert   +2 more
wiley   +1 more source

Associations of serum neurofilament light chain concentration with able life and healthy life in older adults: The Cardiovascular Health Study. [PDF]

Arch Gerontol Geriatr
Hsieh JY, Longstreth WT, Diehr PH, Sitlani CM, Odden MC, Mukamal KJ, Djousse L, Heckbert SR.   +7 more
europepmc   +1 more source

Linking community structure and climate vulnerability in desert plant assemblages of southern California

American Journal of Botany, EarlyView.
Abstract Premise Desert plant assemblages in southern California provide an opportunity to link patterns of community structure with climate‐driven vulnerability in a rapidly changing environment. California sustains an exceptionally diverse flora of approximately 4300 plant species, with 31% identified as endemic.
Hector Zumbado‐Ulate, Luis E. Barrios, Danelle A. Baronia, G. Darrel Jenerette, Lynn C. Sweet   +4 more
wiley   +1 more source