Results 81 to 90 of about 610,589 (382)

Extremes on trees

open access: yesThe Annals of Probability, 2005
Published at http://dx.doi.org/10.1214/009117904000001008 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Holger Rootzén   +2 more
openaire   +4 more sources

21st birthday drinking: Extremely extreme. [PDF]

open access: yesJournal of Consulting and Clinical Psychology, 2008
Despite public recognition of the hazards of 21st birthday drinking, there is little empirical information concerning its prevalence, severity, and risk factors. Data from a sample of 2,518 college students suggest that 21st birthday drinking poses an extreme danger: (a) 4 of every 5 participants (83%) reported drinking to celebrate, (b) birthday ...
Patricia C. Rutledge   +2 more
openaire   +3 more sources

Two New Cases of Uner Tan Syndrome: One Man\ud with Transition from Quadrupedalism to Bipedalism;\ud One Man with Consistent Quadrupedalism [PDF]

open access: yes, 2010
Background: Uner Tan syndrome, first described in\ud 2005, consists of three main symptoms: habitual\ud locomotion on all four extremities, impaired\ud intelligence, and dysarthric or no speech.
Tan, Prof. Dr. Uner
core  

The nicotinamide hypothesis revisited—plant defense signaling integrating PARP, nicotinamide, nicotinic acid, epigenetics, and glutathione

open access: yesFEBS Letters, EarlyView.
Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
wiley   +1 more source

Caracterización del módulo salud del sistema 123: atención de accidentes de tránsito en la ciudad de Medellín

open access: yesMedicina U.P.B., 2020
Objetivo: Caracterizar la atención de accidentes de tránsito en la ciudad de Medellín para obtener una imagen general de la situación de salud en este contexto.
Cindy Zuluaga Ramírez   +7 more
doaj   +1 more source

Effects on strength of vibratory exercise compared to walking in postmenopausal women [PDF]

open access: yes, 2008
A major problem associated with advanced adult age is the remarkable decline in functional capacity and the associated loss of independence (1). Muscle strength of the lower extremities is a major neuromuscular determinant of these losses and mobility (2)
Gusi, Narcis   +2 more
core  

Survey of the needs of patients with spinal cord injury: impact and priority for improvement in hand function in tetraplegics\ud [PDF]

open access: yes, 2004
Objective: To investigate the impact of upper extremity deficit in subjects with tetraplegia.\ud \ud Setting: The United Kingdom and The Netherlands.\ud \ud Study design: Survey among the members of the Dutch and UK Spinal Cord Injury (SCI) Associations.\
BR Johnstone   +30 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Development and Validation of a Prognostic Nomogram for Extremity Soft Tissue Leiomyosarcoma

open access: yesFrontiers in Oncology, 2019
Background: Extremity soft tissue leiomyosarcoma (LMS) is a rare disease with a poor prognosis. The aim of this study is to develop nomograms to predict the overall survival (OS) and cancer-specific survival (CSS) of patients with extremity soft tissue ...
MingFeng Xue   +3 more
doaj   +1 more source

UNERTAN SYNDROME: A CASE SERIES DEMONSTRATING HUMAN DEVOLUTION [PDF]

open access: yes, 2007
A large family with six individuals exhibiting the Unertan syndrome (UTS)was identified residing in southern Turkey. All of the individuals had mental impairments and walked on all four extremities.
Karaca, Dr. Sibel   +2 more
core  

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