Results 21 to 30 of about 567,158 (362)

Imaging and Spectroscopy of Natural Fluorophores in Pine Needles

open access: yesPlants, 2018
Many plant tissues fluoresce due to the natural fluorophores present in cell walls or within the cell protoplast or lumen. While lignin and chlorophyll are well-known fluorophores, other components are less well characterized.
L. Donaldson, N. Williams
semanticscholar   +1 more source

A comparative study of the needle folded mesophyll in Pinus and Cedrus (Pinaceae) species

open access: yesИзвестия высших учебных заведений. Поволжский регион: Естественные науки, 2022
Background. The structure of the assimilatory tissue of the leaves at conifers studied mainly on cross-sections. The purpose of the study is to compare the features of the 3D forms of assimilative cells and the structure of the needle mesophyll in the ...
G.K. Zvereva
doaj   +1 more source

How Placebo Needles Differ From Placebo Pills?

open access: yesFrontiers in Psychiatry, 2018
Because acupuncture treatment is defined by the process of needles penetrating the body, placebo needles were originally developed with non-penetrating mechanisms.
Younbyoung Chae, Ye-Seul Lee, P. Enck
semanticscholar   +1 more source

Differentation of Scots pine (Pinus sylvestris L.) seed orchard in Gidyle on basin of morphological needles trains

open access: yesActa Biologica, 2016
The subject of this study was to analyse the variation of Scots pine (Pinus sylvestris L.) seed orchard with regard to a complex of 9 morpho-anatomical traits of needles. The following measurements were carried out: needle length, number of resin canals,
Renata Słonimska-Walkowiak   +1 more
doaj   +1 more source

Influence of microwaves on the rate of the distillation and yield of etheric oil from the wooded greenery of conifers [PDF]

open access: yesHemijska Industrija, 2005
It is known that many plants represent valuable raw materials for technological processing and that there has been an increase in the use of medicinal, aromatic and spice plants as raw materials in industry.
Marjanović-Balaban Željka   +1 more
doaj   +1 more source

The Effect of Corticosteroid Injection with and Without Dry Needling on Pain Intensity in Patients with Tennis Elbow: A Randomized Clinical Trial Study [PDF]

open access: yesمجله دانشکده پزشکی اصفهان, 2022
Background: Tennis elbow is a condition in which pain is felt in the lateral part of the elbow due to the excessive extension of the wrist. This study aimed to compare the local injection effect of the corticosteroid alone vs corticosteroid alongside dry
Mohammad Hossein Besharati   +3 more
doaj   +1 more source

Needle placement errors: do we need steerable needles in interventional radiology?

open access: yesMedical devices, 2018
Purpose Accurate and precise needle placement is of utmost importance in interventional radiology. However, targeting can be challenging due to, eg, tissue motion and deformation.
T. D. de Jong   +5 more
semanticscholar   +1 more source

Stability of Norway spruce (Picea abies [L.] Karst.) stands in the Beskid Śląski and Beskid Żywiecki Mts. from the aspect of their nutrition status

open access: yesJournal of Forest Science, 2008
The aim of the present research was to determine the stability of spruce stands in the areas of threat to forest stability in the Beskid Śląski and Beskid Żywiecki Mts. in the light of their nutrition. In 2002 samples of soil and of one- and two-year-old
J. Barszcz, S. Małek
doaj   +1 more source

Composition of Essential Oils in Needles and Barks of Turkish Red Pine (Pinus brutia Ten.) Infested by Marchalina hellenica Genn.

open access: yesDrvna Industrija, 2022
The scale insect Marchalina hellenica Genn. plays a key role in pine honey production and is hosted mainly by Turkish red pine (Pinus brutia Ten.). The needles of Turkish red pine are rich in essential oils.
Mustafa Burak Arslan   +4 more
doaj   +1 more source

The application of microwaves in essential oil hydrodistillation processes [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2009
The influence of microwaves pre-treatment of raw plant materials (wooded greenery and fruits of conifers-fir, spruce, pine, juniper and Douglas fir) on the kinetics of the essential oil hydrodistillation using the Unger-type apparatus was studied.
P. Miletić   +2 more
doaj  

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