نتایج جستجو برای: leaf size indices lpi

تعداد نتایج: 713651  

Journal: :JAMA ophthalmology 2013
Ce Zheng Celeste P Guzman Carol Y Cheung Yingke He David S Friedman Sim-Heng Ong Arun K Narayanaswamy Paul T Chew Shamira A Perera Tin Aung

OBJECTIVE To evaluate changes in the speed of pupil constriction and in anterior segment parameters after laser peripheral iridotomy (LPI) in patients with angle closure using anterior segment optical coherence tomography. METHODS In this prospective observational study, videos of pupil and anterior segment changes in response to illumination were captured with real-time video recording using...

2004
F. M. Danson P. Bowyer

Fuel moisture content (FMC) is used in forest fire danger models to characterise the moisture status of the foliage. FMC expresses the amount of water in a leaf relative to the amount of dry matter and differs from measures of leaf water content which express the amount of water in a leaf relative to its area. FMC is related to both leaf water content and leaf dry matter content, and the relati...

Journal: :BMC health services research 2016
Hui-Gek Ang Jeremy Meng-Yeow Koh Jeffrey Lee Yong-Hao Pua

BACKGROUND No instruments, to our knowledge, exist to assess leadership competency in existing and emerging allied health professional (AHP) leaders. This paper describes the development and preliminary exploration of the psychometric properties of a leadership competency instrument for existing and emerging AHP leaders and examines (i) its factor structure, (ii) its convergent validity with th...

2010
Alexander Bondarenko Markus Waldeck-Weiermair Shamim Naghdi Michael Poteser Roland Malli Wolfgang F Graier

Background and purpose: The glycerol-based lysophospholipid lysophosphatidylinositol (LPI) is an endogenous agonist of the G-protein-coupled receptor 55 (GPR55) exhibiting cannabinoid receptor-like properties in endothelial cells. To estimate the contribution of GPR55 to the physiological effects of LPI, the GPR55-dependent and -independent electrical responses in this cell type were investigat...

Journal: :Molecules 2013
Yang Yi Fei Huang Ming-Wei Zhang Rui-Fen Zhang Yuan-Yuan Deng Zhen-Cheng Wei Jing-Ren He

The solution properties of four fractions (LPI-IV) from crude longan pulp polysaccharides (LP3) were analyzed by size-exclusion chromatography combined with laser light scattering, viscometry, complex formation with Congo red, and atomic force microscopy. Their radii of gyration (z)(½) were 43.3, 62.6, 43.2 and 77.3 nm, exponents of (z)(½) = k M(w)(v) were 0.04, 0.50, 0.52 and 0.02, and...

2008
R. Colombo M. Meroni A. Marchesi L. Busetto M. Rossini C. Giardino C. Panigada

This study investigates the applicability of empirical and radiative transfer models to estimate water content at leaf and landscape level. Themain goal is to evaluate and compare the accuracy of these two approaches for estimating leaf water content by means of laboratory reflectance/transmittance measurements and for mapping leaf and canopy water content by using airborne Multispectral Infrar...

2014
Jan SABOL Tomáš MIKITA

Leaf area index (LAI) can be measured either directly, using destructive methods, or indirectly using optical methods that are based on the tight relationship between LAI and canopy light transmittance. Third, innovative approach for LAI measuring is usage of remote sensing data, especially airborne laser scanning (ALS) data shows itself as a advisable source for purposes of LAI modelling in la...

Landfill leachates are potential threats for environmental degradation. This study was conducted to determine the leachate quality, to identify the dominant pollutants and to evaluate the leachate pollution potential of an active and closed dumping ground of an uncontrolled municipal solid waste landfill site in Kolkata, India using leachate pollution index. The results of the physico-chemical ...

Journal: :Remote Sensing 2017
Xiaochen Zou Matti Mottus

Leaf inclination angle distribution is an important canopy structure characteristic which directly impacts the fraction of the intercepted solar radiation. Together with the leaf area index (LAI) it determines the structure and fractional cover of a homogeneous crop canopy. Unfortunately, this key canopy parameter has usually been ignored when applying common multispectral vegetation indices to...

2016
Lori A. Young Fei Yang Ning Cao Juergen Meyer

During volume-modulated arc therapies (VMAT), dosimetric errors are introduced by multiple open dynamic leaf gaps that are present in fixed diaphragm linear accelerators. The purpose of this work was to develop a methodology for adjusting the rounded leaf end modeling parameters to improve out-of-field dose agreement in SmartArc VMAT treatment plans delivered by fixed jaw linacs where leaf gap ...

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