Results 21 to 30 of about 226,444 (263)

Analysis on Carbon and Nitrogen Stable Isotope Ratios of Residents’ Hair from Different Cities [PDF]

open access: yesZhipu Xuebao, 2021
Stable isotope ratios of carbon, nitrogen, hydrogen and oxygen act as “nature’s recorder”. As a carrier for individual human information, human hair can be measured by isotope ratio mass spectrometry (IRMS) to translate into information about people’s ...
YU Zi-yang   +10 more
doaj   +1 more source

Reinforcement of polypropylene with natural fibers: Mitigation of environmental pollution

open access: yesEnvironmental Challenges, 2023
: Recently, natural fibers have gained research attention in reinforcing polymers due to their availability and unique properties in polymer applications. Preliminary studies indicate indiscriminate disposal of human hair (HH) and the burning of cow hair
R.U. Arinze   +7 more
doaj   +1 more source

Levels of Metals in Hair in Childhood: Preliminary Associations with Neuropsychological Behaviors

open access: yesToxics, 2013
For more than 100 years, an electrochemical plant has been operating in Flix (Catalonia, Spain) by the Ebro River. Its activities have originated a severe accumulation of environmental contaminants (metals, organochlorinated pesticides and radionuclides)
Margarita Torrente   +6 more
doaj   +1 more source

Horse Shampoo for Human Hair?

open access: yesJournal of Interdisciplinary Medicine, 2016
Introduction: Lately, a new idea has caught the attention of young people of both genders, being debated in consultation rooms, during classes, and especially on social media: is using horse shampoo for human hair wrong or not?
Chiriac Anca   +4 more
doaj   +1 more source

ETHYL GLUCURONIDE IN HUMAN HAIR [PDF]

open access: yesAlcohol and Alcoholism, 2000
Ethyl glucuronide (EtG) is considered to be a promising candidate marker of alcohol consumption, but exhibits a short window of detection in blood or urine. Keratinized tissues are known to retain foreign substances and to provide a greater retrospective window of detection than body fluids.
G, Skopp   +5 more
openaire   +2 more sources

Prednisone Concentrations in Human Hair [PDF]

open access: yesJournal of Analytical Toxicology, 2002
In 1999, France passed a law against doping, the so-called Loi Buffet. This law was designated to protect athletes against doping consequences, particularly after long-term abuse. In 2001, this law was implemented with its practical aspects. Among them, hair sampling to document chronic exposure was considered as a valid procedure.
Vincent, Cirimele   +3 more
openaire   +2 more sources

Retained intracorneal human hair fragment: An unusual case of occupational trauma

open access: yesOman Journal of Ophthalmology, 2015
A 32-year old male hairdresser presented with redness and irritation of the left eye for past 15 days. A fragment of hair was found embedded in deep corneal stroma with minimal scarring.
Varshini Shanker   +2 more
doaj   +1 more source

Measuring what matters: developing indicators for online content evaluation competencies in elementary school

open access: yesFrontiers in Education
IntroductionChildren increasingly engage with online content from an early age, but often lack the competencies to critically evaluate it. To foster these skills, suitable assessment instruments are required, yet none currently exist for the elementary ...
Tina Jocham, Sanna Pohlmann-Rother
doaj   +1 more source

Valorization of human hair as methylene blue dye adsorbents

open access: yesGreen Processing and Synthesis, 2018
The present study was aimed at evaluating the performance of human hair as adsorbents for methylene blue (MB) dye removal. Human hair was treated using 0.1 m potassium hydroxide (KOH) and 0.1 m nitric acid, and the adsorbents were characterized for ...
Ahmad Zaini Muhammad Abbas   +1 more
doaj   +1 more source

Biology of Human Hair: Know Your Hair to Control It [PDF]

open access: yes, 2010
Hair can be engineered at different levels--its structure and surface--through modification of its constituent molecules, in particular proteins, but also the hair follicle (HF) can be genetically altered, in particular with the advent of siRNA-based applications. General aspects of hair biology are reviewed, as well as the most recent contributions to
Araújo, Rita   +3 more
openaire   +3 more sources

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