Results 21 to 30 of about 6,311,407 (143)

“Head to Head”: pneumocephalus as a complication of soccer [PDF]

open access: yesInternational Journal of Emergency Medicine, 2013
Pneumocephalus is uncommon in craniofacial trauma and a rare occurrence in non-contact sports. It may be asymptomatic or present with signs of increased intracranial pressure and the majority of cases will resolve with conservative management.
Eamon C Francis   +2 more
openaire   +3 more sources

Force distributions and force chains in random stiff fiber networks [PDF]

open access: yes, 2007
We study the elasticity of random stiff fiber networks. The elastic response of the fibers is characterized by a central force stretching stiffness as well as a bending stiffness that acts transverse to the fiber contour. Previous studies have shown that
Alava   +17 more
core   +2 more sources

Ephesus and its coinage [PDF]

open access: yes, 2010
The following is from an article in the Saturday Review, from Head's "Ephesus and Its Coinage," and serves to show the importance numismatics occupies as a key to historical ...
Head, Barclay Vincent
core  

Head-to-head trials of antibiotics for bronchiectasis [PDF]

open access: yesCochrane Database of Systematic Reviews, 2018
The diagnosis of bronchiectasis is defined by abnormal dilation of the airways related to a pathological mechanism of progressive airway destruction that is due to a 'vicious cycle' of recurrent bacterial infection, inflammatory mediator release, airway damage, and subsequent further infection.
Kaehne, Axel   +5 more
openaire   +4 more sources

Codes, Cultures, Chaos, and Champions: Common Features of Legal Codification Experiences in China, Europe, and North America [PDF]

open access: yes, 2003
What are the key conditions and factors that contribute to a successful effort within a political unit to create a new legal code? This article builds of the existing "comparative codification" literature by examining that question in the context of ...
Head, John W.
core   +1 more source

Head to head polymers—38. An improved synthesis of head to head polystyrene

open access: yesEuropean Polymer Journal, 1993
Abstract A greatly improved and very reliable synthesis of head to head polystyrene (HHPS) was worked out. HHPS was prepared in a sequence of four steps starting with a reductive photodimerization of acetophenone. The resultant 2,3-diphenyl-2,3-butanediol was dehydrated in vacuum to 2,3-diphenyl-1,3-butadiene, which was polymerized to 1,4-poly(2,3 ...
Ferenc Tüdös   +3 more
openaire   +2 more sources

Head-to-head polymers: 34. Head-to-head poly(1-vinylnaphthalene)

open access: yesPolymer, 1987
Abstract Head-to-head poly(1-vinylnaphthalene) was synthesized by a sequence of five reactions and the polymer was characterized by its infra-red and nuclear magnetic resonance spectra. Methyl 1-naphthylacetate was brominated to methyl 2-bromo-2(1-naphthyl)acetate, which was coupled with a copper-zinc couple to dimethyl 2,3-di(1-naphthyl)succinate, a
Liping Hu, Otto Vogl, Masato Nanasawa
openaire   +2 more sources

Head imaging and craniometry: A historical note on a base line error [PDF]

open access: yes, 1995
This is the author's PDF version of an article published in Radiography today© 1995. Figure 1 and figure 2 are not available.This journal article discusses the work of Lysholm, Reid, and von Ihering in standarding patient positioning during radiological ...
Lewis, Stephen J.
core  

Psychological Factors and Treatment Adherence Behavior in Patients With Chronic Heart Failure [PDF]

open access: yes, 2007
Background: Chronic heart failure adversely affects 300,000 Australians. Symptom stabilization and prognosis are partially determined by patients following medical and lifestyle recommendations.
Dwyer, Jonathan   +2 more
core   +2 more sources

Early-Middle Pleistocene transitions: Linking terrestrial and marine realms [PDF]

open access: yes, 2015
Marked by a progressive increase in the amplitude of climate oscillations and a shift towards a quasi-100 kyr frequency, the Early–Middle Pleistocene transition (EMPT), previously known as the Mid-Pleistocene Transition (or Mid-Pleistocene Revolution) (1.
Gibbard, Philip L., Head, Martin J.
core   +3 more sources

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