Results 121 to 130 of about 3,264,973 (413)

Heat and Mortality in New York City Since the Beginning of the 20th Century

open access: yesEpidemiology, 2014
Background: Heat is recognized as one of the deadliest weather-related phenomena. Although the impact of high temperatures on mortality has been a subject of extensive research, few previous studies have assessed the impact of population adaptation to ...
E. Petkova, A. Gasparrini, P. Kinney
semanticscholar   +1 more source

Recent Progress in Silver Nanowire‐Based Transparent Conductive Electrodes

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This work has reviewed silver nanowire‐based transparent conductive electrodes in terms of synthesis strategies, device fabrication processes, composition engineering, and property tailoring for flexible electronic applications. The developments of silver nanowire‐based platforms in sensors, solar cells, electronic skin, electromagnetic shielding ...
Jintao Wang   +5 more
wiley   +1 more source

20th Century Club [PDF]

open access: yes, 1921
Fancy Japanese fan drill at the K. of P. hall, Tuesday, June 14, given by the Twentieth Century club.

core   +1 more source

Adapting National Forest Inventories to changing requirements - the case of the Swedish National Forest Inventory at the turn of the 20th century

open access: yes, 2014
National Forest Inventories (NFIs) are becoming increasingly important worldwide in order to provide information about the multiple functions of forests, e.g.
Jonas Fridman   +5 more
semanticscholar   +1 more source

Effect of risk and incentives on contracts: The case of farm operators in Iowa

open access: yesAgribusiness, EarlyView.
Abstract Longitudinal data on Iowa landowner–operator contracts are used to examine how the mean, variance, and skewness of expected farmland returns affected contract terms from 2008 to 2019. To control for unobserved operator risk preferences and ability as a fixed effect, the sample includes operators with multiple contracts.
Jun Yeong Lee
wiley   +1 more source

The Geometry of Momentum [PDF]

open access: yesarXiv, 2002
Although the idea of the momentum map associated with a symplectic action of a group is already contained in work of Lie, the geometry of momentum maps was not studied extensively until the 1960's. Centering around the relation between symmetries and conserved quantities, the study of momentum maps was very much alive at the end of the 20th century and
arxiv  

Product differentiation in the fruit industry: Lessons from trademarked apples

open access: yesAgribusiness, EarlyView.
Abstract We derive price premiums for patented or trademarked apple varieties, also known as “club apples,” compared to open‐variety apples. We use an expansive retail scanner dataset, along with unique data on apple taste characteristics, to estimate monthly club apple premiums for 2008–2018.
Modhurima Dey Amin   +3 more
wiley   +1 more source

Raman Spectroscopy of the Works of Szymon Czechowicz (1689-1775)

open access: yesConservation Science in Cultural Heritage, 2019
The paper presents the results from Raman spectroscopy (RS) analyses of the works of Szymon Czechowicz and his workshop ‒ the most important Polish baroque painter.
Mirosław Sawczak   +1 more
doaj   +1 more source

What happened to modern physics? [PDF]

open access: yesOriginal Paper: Shabajee, P. and Postlethwaite, K. (2000) What happened to modern physics?, School Science Review, 81(297), p51-56.], 2004
Relativity, Quantum Mechanics and Chaos theory are three of the most significant scientific advances of the 20th Century - each fundamentally changing our understanding of the physical universe. The authors ask why the UK National Curriculum in science almost entirely ignores them. Children and young people regularly come into contact with the language,
arxiv  

Demographic, Residential, and Socioeconomic Effects on the Distribution of 19th Century African-American Body Mass Index Values [PDF]

open access: yes
Little research exists on the body mass index values of late 19th and early 20th century African-Americans. Using a new BMI data set and robust statistics, this paper demonstrates that late 19th and early 20th century black BMI variation by age increased
Scott A. Carson
core  

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