Results 131 to 140 of about 9,543 (293)

Market Integration and Nonlinear Price Transmission in 19th‐Century British Wheat Markets

open access: yesJournal of Agricultural Economics, EarlyView.
ABSTRACT Important developments in infrastructure and institutions characterized 19th‐Century wheat markets in Great Britain. Among these developments was the construction of the national rail system which enabled cheaper and more efficient transport of grain and other bulky cargoes between inland towns and ports.
Barry K. Goodwin, A. Ford Ramsey
wiley   +1 more source

Preliminary Appraisal of a Correlation Between Glaciations and Large Igneous Provinces Over the Past 720 Million Years

open access: yesGeophysical Monograph Series, Page 169-190., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Nasrrddine Youbi   +9 more
wiley  

+1 more source

New Results From the Pre‐Pottery Neolithic Site of Al Uyaynah, Tabuk, in Northwestern Saudi Arabia

open access: yesArabian Archaeology and Epigraphy, EarlyView.
ABSTRACT Al Uyaynah is a low sandstone mound on an alluvial plain, long known for its extensive surface remains of stone‐built circular and rectangular structures. Following test excavations in 2012, more detailed excavation was undertaken in 2016 within one of the largest rectangular stone structures.
Khalid Alasmari   +6 more
wiley   +1 more source

Empowerment or Pressure? Exploring the Impact of Female Body Depictions in Body Positivity Instagram Posts on Self-Objectification. [PDF]

open access: yesInt J Psychol
ABSTRACT Although Body Positivity content (BoPo) has been criticised for emphasising physical appearance and promoting self‐objectification, the specific features driving these effects remain unclear. The present study examined whether depictions of female bodies act as triggers for self‐objectification in BoPo on Instagram.
Krizova N, Kvardova N, Machackova H.
europepmc   +2 more sources

Approximate Ramsey properties of Banach spaces.

open access: yes, 2019
We will discuss the Ramsey and other related properties in the context of Banach spaces and similar categories.Non UBCUnreviewedAuthor affiliation ...
Lopez-Abad, Jordi
core  

Field‐level crop choice responses to weather‐induced yield shocks in the US Corn Belt

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract As climate change increases the frequency and severity of extreme heat events, farmers are expected to face greater variability in crop yields. Using 10 million field‐level observations, this study examines how farmers in the US Corn Belt adjust corn–soybean rotation decisions in response to yield shocks largely driven by weather fluctuations.
Seunghyun Lee
wiley   +1 more source

Ramsey theory on the integers

open access: yes, 2014
Ramsey theory is the study of the structure of mathematical objects that is preserved under partitions. In its full generality, Ramsey theory is quite powerful, but can quickly become complicated.
Landman, Bruce M   +3 more
core   +1 more source

Theories of Interest and Their Relation to the Gesell–Keynes Theory

open access: yesThe American Journal of Economics and Sociology, EarlyView.
ABSTRACT We consider theories of interest as they relate to what we will call the Gesell‐Keynes (GK) theory which is essentially a real theory of capital accumulation with a monetary constraint that arises because of a liquidity return on holding money.
Ahmed Anwar
wiley   +1 more source

A ramsey-type theorem for multiple disjoint copies of induced subgraphs

open access: yesDiscussiones Mathematicae Graph Theory, 2014
Let k and ℓ be positive integers with ℓ ≤ k − 2. It is proved that there exists a positive integer c depending on k and ℓ such that every graph of order (2k−1−ℓ/k)n+c contains n vertex disjoint induced subgraphs, where these subgraphs are isomorphic to ...
Nakamigawa Tomoki
doaj   +1 more source

An exploration in Ramsey theory

open access: yes, 2020
We present several introductory results in the realm of Ramsey Theory, a subfield of Combinatorics and Graph Theory. The proofs in this thesis revolve around identifying substructure amidst chaos.
Weber, Jake
core  

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