Results 1 to 10 of about 220,668 (342)

A NEEDLE EXTRACTOR. [PDF]

open access: greenJAMA: The Journal of the American Medical Association, 1902
The difficulty of extracting a needle after it has been inserted into dense tissues, especially if threaded with heavy suture material, is one with which every surgeon is familiar. Inasmuch as it is often impossible to let go with the needle holder before getting a hold of the point of the needle with something, one mostly resorts to extract the needle
P. C. Clemensen
openalex   +4 more sources

The utility of environmental DNA from sediment and water samples for recovery of observed plant and animal species from four Mojave Desert springs

open access: yesEnvironmental DNA, 2021
Mojave Desert springs are fragile ecosystems, hosting endemic plants and animals, which are threatened by the increasing human demand for water and climate change.
Maura Palacios Mejia   +10 more
doaj   +1 more source

At-home disposal practices of used insulin needles among patients with diabetes in China: A single-center, cross-sectional study

open access: yesFrontiers in Public Health, 2022
BackgroundMost insulin injections for people with diabetes are administered at home, thus generating many used needles. Unsafe disposal of these at-home needles can lead to needle stick injuries, blood-borne disease transmission, and environmental ...
Haixia Tu   +7 more
doaj   +1 more source

Inter- and Intra-Population Variation of Foliage Calcium and Magnesium in Two Chinese Pine Species

open access: yesPlants, 2023
Calcium and magnesium are major nutrient elements of plants, and both play an important role in plant growth and development. Pinus massoniana and P. hwangshanensis are important afforestation tree species in barren mountains in China.
Meng Hu   +8 more
doaj   +1 more source

Impact of the Number of Needle Tip Bevels on the Exerted Forces and Energy in Insulin Pen Injections

open access: yesSensors, 2023
Patients affected with type 1 diabetes and a non-negligible number of patients with type 2 diabetes are insulin dependent. Both the injection technique and the choice of the most suitable needle are fundamental for allowing them to have a good injection ...
Alfonso Maria Ponsiglione   +4 more
doaj   +1 more source

Thermostability of antioxidant enzymes in tissues of Scots pine in heat shock conditions [PDF]

open access: yesСибирский лесной журнал, 2017
Samples of needles from the middle part of the crown and cambial zone scrapings, which includes cambium cells and nonlignified xylem cells from five stems of 15 years old Scots pine Pinus sylvestris L.
N. E. Sudachkova   +3 more
doaj   +1 more source

Strategy of Coniferous Needle Biorefinery into Value-Added Products to Implement Circular Bioeconomy Concepts in Forestry Side Stream Utilization

open access: yesMolecules, 2023
Sustainable development goals require a reduction in the existing heavy reliance on fossil resources. Forestry can be considered a key resource for the bioeconomy, providing timber, energy, chemicals (including fine chemicals), and various other products.
Linards Klavins   +7 more
doaj   +1 more source

Features of elemental composition and pigment complex of the Siberian larch needles under impact of Irkutsk aluminum smelter emissions [PDF]

open access: yesСибирский лесной журнал, 2022
The paper presents data on the content of 32 chemical elements in the needles of the Siberian larch Larix sibirica Ledeb. trees growing at different distances from the Irkutsk aluminum smelter (IrkAS), as well as in the background areas. It is shown that
L. V. Afanas’eva   +3 more
doaj   +1 more source

Photosynthetic pigments of the Siberian spruce needles in the middle taiga forests of the European North-East Russia [PDF]

open access: yesСибирский лесной журнал, 2017
The seasonal changes in content and ratio of chlorophylls and carotenoids in the Siberian spruce Picea obovata Ledeb. needles growing in bilberry, bilberry-sphagnum and polytric-sphagnum forest types in the middle taiga subzone of the European North-East
V. V. Tuzhilkina
doaj   +1 more source

Puente para paso de peatones, en Iowa

open access: yesInformes de la Construccion, 1964
La pasarela recientemente construida en Des Moines (EE. UU.), presenta la notable particularidad de tener sus accesos en curva y apoyarse sobre pilares de forma cilíndrica.
- Howard   +3 more
doaj   +1 more source

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