Results 11 to 20 of about 6,311,407 (143)

Head-to-head polymers [PDF]

open access: yesJournal of Polymer Science Part A: Polymer Chemistry, 2000
Head-to-head (H–H) linkages were observed in addition and condensation polymers. Pure H–H polymers of polyolefins, poly(vinyl halides), and polyacrylates were prepared, and the fundamental polymer properties were determined. They included mechanical, spectral, thermal, and degradation behaviors.
openaire   +2 more sources

Tango: the intimate dance of conflict transformation [PDF]

open access: yes, 2013
The tango. Two dancers stand apart at first, looking at each other. The connection begins before the leader invites the follower to enter into the embrace.
Head, N.
core  

The potential impact of internet and mobile use on headache and other somatic symptoms in adolescence. a population-based cross-sectional study [PDF]

open access: yes, 2016
Objective.—The purpose of this cross-sectional study was to determine whether migraine or tension-type headaches are associated with abuse of the internet and/or mobile phones and to explore whether headache and the abuse of the two technologies are ...
Cerutti, Rita   +4 more
core   +1 more source

Commentary: Head-to-head or head-to-toe [PDF]

open access: yesThe Journal of Thoracic and Cardiovascular Surgery, 2022
Richard T. Lee, Dawn S. Hui
openaire   +2 more sources

Survival of the most memorable : Darwin’s textual afterlife through rhetoric in On the Origin of Species [PDF]

open access: yes, 2016
The unassuming Charles Darwin did not invent the theory of evolution. However, one reason why Charles Darwin specifically appears as the figurehead for evolution, and not somebody else, comes from his rhetorical endeavour to create a textual afterlife ...
Head, Samuel
core  

Use of Most Bothersome Symptom as a Coprimary Endpoint in Migraine Clinical Trials: A Post-Hoc Analysis of the Pivotal ZOTRIP Randomized, Controlled Trial. [PDF]

open access: yes, 2018
ObjectiveTo better understand the utility of using pain freedom and most bothersome headache-associated symptom (MBS) freedom as co-primary endpoints in clinical trials of acute migraine interventions.BackgroundAdhesive dermally applied microarray (ADAM)
Dodick, David W   +5 more
core   +1 more source

Anthropology: Head to head [PDF]

open access: yesNature, 2011
A scenario blaming rats for the devastation of Easter Island doesn't account for recent results, argues Paul Bahn.
openaire   +2 more sources

Head

open access: yesCanadian Medical Education Journal, 2019
To fully understand something you must break it down to its simplest form. This is especially true for medicine. In order to appreciate challenging concepts, you need to have a basic comprehension of all components. I completed this piece as a medical student where I was confronted with new information that relied on my prior learning to build a bigger
openaire   +4 more sources

Temperature scaling, glassiness and stationarity in the Bak-Sneppen model

open access: yes, 2000
We show that the emergence of criticality in the locally-defined Bak-Sneppen model corresponds to separation over a hierarchy of timescales. Near to the critical point the model obeys scaling relations, with exponents which we derive numerically for a ...
Head, D. A.
core   +1 more source

Crossover to self-organized criticality in an inertial sandpile model [PDF]

open access: yes, 1996
We introduce a one-dimensional sandpile model which incorporates particle inertia. The inertial dynamics are governed by a new parameter which, as it passes through a threshold value, alters the toppling dynamics in such a way that the system no longer ...
Head, DA, Rodgers, GJ
core   +5 more sources

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