نتایج جستجو برای: Plant samples

تعداد نتایج: 795119  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم 1392

the history of plant’s used for mankind is as old as the start of humankind. initially, people used plants for their nutritional proposes but after the discovery of medicinal properties, this natural ?ora became a useful source of disease cure and health improvement across various human communities. berberis vulgaris is one of the medicinal plants used in iranian traditional medicine. berberis ...

2017
Katherine E. French

Creating sustainable bioeconomies for the 21st century relies on optimizing the use of biological resources to improve agricultural productivity and create new products. Arbuscular mycorrhizae (phylum Glomeromycota) form symbiotic relationships with over 80% of vascular plants. In return for carbon, these fungi improve plant health and tolerance to environmental stress. This symbiosis is over 4...

Journal: :analytical and bioanalytical chemistry research 0
mohammad ali sheikh-mohseni shahid bakeri high education center of miandoab, urmia university, urmia, i.r. iran

a modified electrode was prepared by modification of the carbon paste electrode (cpe) with graphene nano-sheets. the fabricated modified electrode exhibited an electrocatalytic activity toward gallic acid (ga) oxidation because of good conductivity, low electron transfer resistance and catalytic effect. the graphene modified cpe had a lower overvoltage and enhanced electrical current respect to...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...

Journal: :Iraqi journal of science 2022

The amount of radioactive isotopes in submerged Ceratophyllum demersum plants samples were estimated using passive track detector CR-39. collected from four selected sites along the Tigris River Baghdad city, on a monthly basis for one complete year 2019. Certain factors like radon concentration (Bq.m-3), radium content (Bq.kg-1) and uranium (ppm) evaluated. average values 222Rn level, 226Ra 23...

Journal: :SKIN The Journal of Cutaneous Medicine 2020

2015
Robert Amelard Christian Scharfenberger Farnoud Kazemzadeh Kaylen J. Pfisterer Bill S. Lin David A. Clausi Alexander Wong

Photoplethysmography (PPG) devices are widely used for monitoring cardiovascular function. However, these devices require skin contact, which restricts their use to at-rest short-term monitoring. Photoplethysmographic imaging (PPGI) has been recently proposed as a non-contact monitoring alternative by measuring blood pulse signals across a spatial region of interest. Existing systems operate in...

Journal: :PloS one 2016
Julianne Williams Peter Scarborough Nick Townsend Anne Matthews Thomas Burgoine Lorraine Mumtaz Mike Rayner

The Data Availability Statement appearing with the published article is incorrect. The correct Data Availability Statement should read: There are legal restrictions on the student outcome data. National Child Measurement Programme data was used as determined by the data sharing agreement with the then Information Centre of the National Health Service (NHS IC), now Health and Social Care Informa...

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