Results 81 to 90 of about 4,959,354 (288)

Testing the Geometric Series Hypothesis for the Ascending Leaf Length Sequence per Culm in Six Indocalamus Bamboo Species

open access: yesPlants
The distribution of leaf sizes along a shoot is a fundamental aspect of plant architecture, but a simple quantitative rule for this pattern has not been widely tested.
Yimin Zhu, Weihao Yao, Peijian Shi
doaj   +1 more source

The effects of leaf size, leaf habit, and leaf form on leaf/stem relationships in plant twigs of temperate woody species

open access: yes, 2009
Do thick-twigged/large-leaf species have an advantage in leaf display over their counterparts, and what are the effects of leaf habit and leaf form on the leaf-stem relationship in plant twigs of temperature broadleaf woody species?
Yang, DM   +3 more
core  

Monitoring environmental features using leaf stomatal characteristics [PDF]

open access: yes, 1997
It is recognised that atmospheric CO(_2) concentrations are increasing, with concerns raised as to the global impact continued rises may have. Plant stomatal parameters have been suggested as a means of monitoring changing CO(_2) levels.
Metcalfe, Michelle J.
core  

Anticoagulation Treatment Response Among Phenotypic ESUS Clusters: Evidence From CASPR

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate treatment effect heterogeneity across phenotypic clusters of patients with cryptogenic embolic stroke using causal inference methods. Methods From a retrospective, multicenter cohort of patients with cryptogenic embolic stroke, we estimated the treatment effect of anticoagulation versus antiplatelet therapy in patients ...
Elena Badillo Goicoechea   +53 more
wiley   +1 more source

Inter-incompatibility of self- incompatible apricots and their varietal properties

open access: yesInternational Journal of Horticultural Science, 1999
There are four apricot varieties grown in Hungary derived from local selections known to bear fruits of giant (60 - 100 g) size: Ceglédi óriás, Nagykőrösi óriás, Szegedi mammut and Ligeti óriás.
Z. Erdős, Z. Szabó, J. Nyéki
doaj   +1 more source

STEM ARCHITECTURAL EFFECT ON LEAF SIZE, LEAF NUMBER, AND LEAF MASS FRACTION IN PLANT TWIGS OF WOODY SPECIES

open access: yes, 2009
This study is to examine the effect of stem architecture on biomass allocation between leaf and stem and between leaf size and number in plant twigs of woody species.
Wu, N   +5 more
core  

Table_1_Leaf Venation Architecture in Relation to Leaf Size Across Leaf Habits and Vein Types in Subtropical Woody Plants.XLSX

open access: yes, 2022
Leaves are enormously diverse in their size and venation architecture, both of which are core determinants of plant adaptation to environments. Leaf size is an important determinant of leaf function and ecological strategy, while leaf venation, the main ...
Zhenfeng Cheng (12509668)   +7 more
core   +1 more source

A Two‐Stage Plasma Biomarker Algorithm Reduces Amyloid PET Use and the p‐Tau217 Gray Zone

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Plasma p‐Tau217 leaves 30%–50% of patients in an indeterminate “gray zone” often requiring Aβ‐PET. We developed GRAD (Gatekeeper‐Reflex for Alzheimer's Disease), a two‐stage Aβ‐positivity prediction model to improve classification while reserving Aβ‐PET for residual uncertainty.
Harthik Parankusham   +7 more
wiley   +1 more source

Four‐Year Cognitive Outcomes in Multiple Sclerosis: Associations With Lesion Myelin Integrity

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Cognitive impairment is prevalent in patients with multiple sclerosis (MS) but whether lesion myelin integrity influences future cognitive outcomes remains unclear. We investigated the relationship between baseline lesion myelin water fraction (MWF) and cognitive performance 4 years later.
Iliana Pliska‐Bloch   +9 more
wiley   +1 more source

Employment Trajectories of Patients With Systemic Lupus Erythematosus and Factors Driving Transitions Between States

open access: yesArthritis Care &Research, EarlyView.
Objective Systemic lupus erythematosus (SLE) significantly impacts employment capacity. This study aimed to investigate the impact of burden of disease activity, damage, and treatment on employment outcomes and transitions in patients with SLE. Methods Using data from a single center, we analyzed employment transitions, adjusted mean disease activity ...
Javier Mencia‐Ledo   +4 more
wiley   +1 more source

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