Results 1 to 10 of about 26,618 (208)

Micropropagation and molecular characterization of Hypericum perforatum L. subsp. veronense (Schrank) H. Lindb., a valuable medicinal plant with ornamental value [PDF]

open access: yesRomanian Journal of Horticulture, 2023
St. John's wort (Hypericum perforatum) is a perennial species with a worldwide interest due to its pharmaceutical characteristics which is also of ornamental value for gardening with native elements. Given that in vitro culture allows mass multiplication
T. T. Tzatzani   +4 more
doaj   +1 more source

Pentacene Based Organic Field Effect Transistor Using Different Gate Dielectric [PDF]

open access: yesEngineering and Technology Journal, 2021
This paper presents the electrical behavior of the top contact/ bottom gate of an organic field-effect transistor (OFET) utilizing Pentacene as a semiconductor layer with two distinctive gate dielectric materials Polyvinylpyrrolidone (PVP) and Zirconium ...
Ayat Kadhim   +2 more
doaj   +1 more source

Multi-attribute decision making approach for placement of dynaflow controllers in a power system network using particle mobility honey bee algorithm

open access: yesAin Shams Engineering Journal, 2022
The appropriate placement of flexible AC transmission systems (FACTS) is becoming more critical in power systems. FACTS controllers that are not correctly positioned cannot provide optimum performance and harm the system.
Padmanabha Raju Chinda   +1 more
doaj   +1 more source

Removal of agricultural wastewater pollutants by integrating two waste materials, fish scales and neem leaves, as novel potential adsorbent

open access: yesWater Science and Technology, 2021
Only 2.5% of the world's water is fresh, despite the fact that water covers approximately 70% of the planet. This water is used for several recreational purposes and gets polluted by wastewater disposal directly into freshwater bodies.
Veeravalli Preetham, Jagadish Vengala
doaj   +1 more source

Extraction and Evaluation of Lepidium Sativum and Flax Seeds Mucilage as a Pharmaceutical Granulation Binder

open access: yesBritish Journal of Pharmacy, 2021
The powders are held together by a binder to form granules. Some excipients are of natural origins are currently available as an alternative over the synthetic ones in pharmaceutical formulation.
Nagla Algali Layas   +5 more
doaj   +1 more source

Preparation,Characterization, Antimicrobial and Antitumor Activity of Chitosan Schiff base / PVA / PVP Au, Ag Nanocomposite in Treatment of Breast Cancer Cell Line [PDF]

open access: yesNanomedicine Research Journal, 2021
In this research, chitosan Schiff base was prepared from the reaction of chitosan with carbonyl group of 4-nitro benzaldehyde. The gold and silver nanoparticles were prepared by the onion peels extract as reducing agent. The prepared AgNPs and AuNPs were
Baker Abdallaha   +2 more
doaj   +1 more source

Effect of PolyVinyl Pyrrolidone on Sperm Membrane Integrity and Chromatin Status [PDF]

open access: yesInternational Journal of Fertility and Sterility, 2008
Background The aim of present study is to evaluate the effect of PolyVinyl Pyrrolidone (PVP) routinly used during ICSI procedure on sperm membrane integrity, and sperm chromatin status.
Mohammad Hossein Nasr Esfahani   +5 more
doaj   +1 more source

Biodegradation of synthetic PVP biofilms using natural materials and nanoparticles

open access: yesGreen Processing and Synthesis, 2023
Biodegradable nanofilms from polyvinyl pyrrolidone (PVP), carboxymethyl cellulose (CMC), citric acid (CA), glycerol (G), and zinc oxide nanoparticles (ZnO-NPs) were prepared using different ZnO concentrations and different electron beam irradiation doses,
Alzain Hassan   +3 more
doaj   +1 more source

Effect of Different Solvents, Pore-Forming Agent and Solubility Parameter Differences on the Properties of PES Ultrafiltration Membrane

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
In the production of polymeric membranes used in water treatment by the non-solvent-induced phase separation (NIPS) method, the materials used in the membrane casting solution and the interaction of these materials greatly affect the properties and ...
Seren Acarer
doaj   +1 more source

Comparative Study of the Mechanical Properties of Two Groups Ternary Polymer Blends Composites [PDF]

open access: yesEngineering and Technology Journal, 2014
Thermoplastic polymer blends composites were prepared as strips by double screw extruder. The prepared composites consists of two groups, the first group was prepared as ternary polymer blend according to the formula [84%LLDPE:15%((100-X)%PP:X%PVP):1%B.P]
Sihama E. salih   +2 more
doaj   +1 more source

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