Results 61 to 70 of about 2,025,287 (268)

Gas chromatography of volatile organic compounds [PDF]

open access: yes, 1973
System has been used for problems such as analysis of volatile metabolities in human blood and urine, analysis of air pollutants, and in tobacco smoke chemistry.
Zlatkis, A.
core   +1 more source

Modelling a two-dimensional spatial distribution of mycotoxin concentration in bulk commodities to design effective and efficient sample selection strategies [PDF]

open access: yes, 2009
Mycotoxins in agricultural commodities are a hazard to human and animal health. Their heterogeneous spatial distribution in bulk storage or transport makes it particularly difficult to design effective and efficient sampling plans.
Magan, Naresh   +4 more
core   +4 more sources

Clinical Course and Impact of Breaks in Therapy for Children With Relapsed/Refractory Solid Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pediatric relapsed or refractory (R/R) solid tumors carry a dismal prognosis, and postrelapse patient experiences are not well described. We present postrelapse outcomes, including number of R/R events and subsequent therapy regimens.
Matthew T. McEvoy   +5 more
wiley   +1 more source

Molecular Methods for Rare Hemoglobinopathy Cases: First Brazilian Report of Pediatric Siblings with Hb O‐Arab and Alpha‐Thalassemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hemoglobinopathies are prevalent globally; diagnosis is complex in high genetic admixture populations like Brazil. We report, in two pediatric siblings, the first documented cases in Brazil of heterozygosity for hemoglobin (Hb) O‐Arab with coinheritance of α‐thalassemia (αα/−α4.2; −α3.7/−α4.2), resulting in microcytic and hypochromic anemia ...
Elisângela de Souza Miranda Muynarsk   +9 more
wiley   +1 more source

Toxoplasma gondii in small mammals in Romania: the influence of host, season and sampling location

open access: yesBMC Veterinary Research, 2023
Background Toxoplasma gondii is a protozoan parasite that infects a large spectrum of warm-blooded animals, including humans. Small rodents and insectivores play an important role in the epidemiology of T.
Zsuzsa Kalmár   +10 more
doaj   +1 more source

Detection of Mycobacterium avium subspecies paratuberculosis in environmental samples from infected Czech dairy herds

open access: yesVeterinární Medicína, 2021
The objective of the present study was to evaluate the suitability of environmental sampling to screen Czech dairy herds to detect Mycobacterium avium ssp.
Vera Fichtelova   +4 more
doaj   +1 more source

Water Quality Sampling, Analysis and Annual Load Determinations for TSS, Nitrogen and Phosphorus at the Wyman Road Bridge on the White River [PDF]

open access: yes, 2003
A water quality sampling station was installed at the Wyman Road Bridge just below the confluence of the three main forks of the Upper White River in January 2000. This station is coordinated with the USGS gaging station at the same location.
Cash, Wade, Nelson, Marc
core   +2 more sources

Criterion‐Related Validity of the Neuropsychological Quick Assessment for Screening Cognitive, Motor, and Behavioral Impairments in Patients With Pediatric Brain Tumors: An Observational Pilot Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Neuropsychological complications may impair the qualitative prognosis of patients with pediatric brain tumors. However, multifaceted evaluations cannot be conducted in all patients because they are time consuming and burdensome for patients.
Ami Tabata   +9 more
wiley   +1 more source

The potential of co-location to mitigate sampling bias in Research Infrastructures

open access: yesEcological Indicators
Research Infrastructures (RIs) are key to face the grand environmental challenges humanity encounters by providing standardized, large-scale data. However, the in-situ facilities of RIs frequently exhibit a sampling bias.
Thomas Ohnemus   +4 more
doaj   +1 more source

A comparison of temporal and location-based sampling strategies for global positioning system-triggered electronic diaries

open access: yesGeospatial Health, 2016
Self-reporting is a well-established approach within the medical and psychological sciences. In order to avoid recall bias, i.e. past events being remembered inaccurately, the reports can be filled out on a smartphone in real-time and in the natural ...
Tobias Törnros   +7 more
doaj   +1 more source

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