نتایج جستجو برای: leaf numbers

تعداد نتایج: 280627  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Chi-Fa Huang Chun-Ping Yu Yeh-Hua Wu Mei-Yeh Jade Lu Shih-Long Tu Shu-Hsing Wu Shin-Han Shiu Maurice S B Ku Wen-Hsiung Li

High vein density, a distinctive trait of C4 leaves, is central to both C3-to-C4 evolution and conversion of C3 to C4-like crops. We tested the hypothesis that high vein density in C4 leaves is due to elevated auxin biosynthesis and transport in developing leaves. Up-regulation of genes in auxin biosynthesis pathways and higher auxin content were found in developing C4 leaves compared with deve...

2012
Giovanni Pezzulo Lawrence W. Barsalou Angelo Cangelosi Martin H. Fischer Ken McRae Michael J. Spivey

Grounded theories assume that there is no central module for cognition. According to this view, all cognitive phenomena, including those considered the province of amodal cognition such as reasoning, numeric, and language processing, are ultimately grounded in (and emerge from) a variety of bodily, affective, perceptual, and motor processes. The development and expression of cognition is constr...

2011
Per Fauchald Henrik Skov Mette Skern-Mauritzen David Johns Torkild Tveraa

BACKGROUND In a "wasp-waist" ecosystem, an intermediate trophic level is expected to control the abundance of predators through a bottom-up interaction and the abundance of prey through a top-down interaction. Previous studies suggest that the North Sea is mainly governed by bottom-up interactions driven by climate perturbations. However, few studies have investigated the importance of the inte...

2007
Luca Gemignani Frank Uhlig

In this paper we develop a hybrid symbolic-numeric fast method for solving the secular equation associated with a diagonal plus rank-one eigenvalue problem of order n in O(n) operations and O(n) storage. AMS classification: 65F15

Journal: :Journal of experimental psychology. Learning, memory, and cognition 2004
Paul D Windschitl John R Chambers

The judged likelihood of a focal outcome should generally decrease as the list of alternative possibilities increases. For example, the likelihood that a runner will win a race goes down when 2 new entries are added to the field. However, 6 experiments demonstrate that the presence of implausible alternatives (duds) often increases the judged likelihood of a focal outcome. This dud-alternative ...

Journal: :Journal of pediatric orthopedics 2003
Heather S Read M Elizabeth Hazlewood Susan J Hillman Robin J Prescott James E Robb

Complex gait analysis systems are not generally available worldwide, and no simple system of assessing gait by observation has been validated specifically for use in patients with cerebral palsy. The authors have developed a visual gait analysis score for use in cerebral palsy. Videotaped sequences of patients were recorded before and after surgery as part of a three-dimensional gait study usin...

2014
Katja Wehner Stefan Scheu Mark Maraun

The availability of high quality resources is an important factor driving community structure and reproductive mode of animals. Parthenogenetic reproduction prevails when resources are available in excess, whereas sexuality correlates with resource shortage. We investigated the effect of resource availability on the community structure of oribatid mites in a laboratory experiment. Availability ...

Journal: : 2021

The aim of this study was to determine changes in the essential oil ratio and components position leaves on stem aerial parts (stem, leaf, flower) at O. syriacum L. var. bevanii (Holmes) Ietswaart. which naturally grows Anatolia. It conducted 2016 growing session, under Diyarbakır conditions (South-eastern Anatolia, Turkey). Plants were harvested full flowering time then plant samples separated...

2004
FRANCISCO R. BADENES-PEREZ ANTHONY M. SHELTON BRIAN A. NAULT

Potential trap crops for the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), were evaluated through a series of ovipositional preference and larval survival experiments in outdoor screenhouses in 2002 and 2003. Hosts examined as trap crops were glossy and waxy collards, Brassica oleracea L. variety acephala; Indian mustard, Brassica juncea (L.) Czern; and yellow rocket,Ba...

Journal: :Journal of economic entomology 2004
Francisco R Badenes-Perez Anthony M Shelton Brian A Nault

Potential trap crops for the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), were evaluated through a series of ovipositional preference and larval survival experiments in outdoor screenhouses in 2002 and 2003. Hosts examined as trap crops were glossy and waxy collards, Brassica oleracea L. variety acephala; Indian mustard, Brassica juncea (L.) Czern; and yellow rocket, B...

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