Results 31 to 40 of about 285,924 (259)

Environmental tracers

open access: yesEos, Transactions American Geophysical Union, 1991
Several naturally occurring tracers of water in natural systems (for example, stable isotopes of oxygen and hydrogen) are being widely used to determine the flow paths that water takes through a catchment. These chart the course of water from when it lands on the soil surface as rain or snow until it flows out of the catchment as streamflow. Tracing of
openaire   +1 more source

Social image concerns promote cooperation more than altruistic punishment

open access: yesNature Communications, 2016
Cooperation requires individuals to sacrifice individual rewards for group benefits. Here, Grimalda, Pondorfer and Tracer show in a foraging society of Papua New Guinea that social image building is a more powerful motivator of social cooperation than ...
Gianluca Grimalda   +2 more
doaj   +1 more source

DSi as a Tracer for Submarine Groundwater Discharge

open access: yesFrontiers in Marine Science, 2019
Submarine groundwater discharge (SGD) is an important source of nutrients and metals to the coastal ocean, affects coastal ecosystems, and is gaining recognition as a relevant water resource.
Till Oehler   +9 more
doaj   +1 more source

Toxicity of fluorescent tracers and their degradation byproducts

open access: yesInternational Journal of Speleology, 2017
Tracer tests are frequently used to delineate catchment area of water supply springs in karstic zones. In the karstic chalk of Normandy, the main tracers used are fluorescent: uranine, sulforhodamine B, naphtionate, and Tinopal®.
Philippe Gombert   +4 more
doaj   +1 more source

Evidence‐Informed Multidisciplinary Consensus Guidance for the Psychosocial Care of Adolescents With High‐Risk Cancer: Recommendations From the Italian Association of Pediatric Hematology and Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adolescents with high‐risk cancer face complex developmental, psychosocial, and ethical challenges that extend beyond disease‐directed treatment. Although international recommendations exist for communication, psychosocial care, pediatric palliative care, survivorship, and shared decision‐making, these have largely evolved within ...
Johanna M. C. Blom   +15 more
wiley   +1 more source

Perfluoro(Methylcyclohexane) Tracer Tagging Test and Demonstration [PDF]

open access: yes, 2000
On February 14 and 15, 2000, a demonstration of current perfluorocarbon tagging technology and the future potential of these methods was held at Oak Ridge National Laboratory (ORNL). The demonstration consisted of a brief technical discussion followed by
Sigman, M.E.
core   +1 more source

Whole-Body Distribution of Donepezil as an Acetylcholinesterase Inhibitor after Oral Administration in Normal Human Subjects: A 11C-donepezil PET Study [PDF]

open access: yesAsia Oceania Journal of Nuclear Medicine and Biology, 2017
Objective(s): It is difficult to investigate the whole-body distribution of an orally administered drug by means of positron emission tomography (PET), owing to the short physical half-life of radionuclides, especially when 11C-labeled compounds are ...
Ikuko Mochida   +9 more
doaj   +1 more source

Study on naked eye tracing of inguinal sentinel lymph nodes in penile cancer patients with carbon nanoparticle suspension injection

open access: yesFrontiers in Medicine, 2023
ObjectiveExploratory study of the effect and clinical value of carbon nanoparticle suspension injection (CNSI) as a tracer for inguinal sentinel lymph nodes in penile cancer.MethodWe selected 29 patients with penile cancer in our department from January ...
Chengyi Liu   +10 more
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Technical Concepts for the Transition of the Energy System into a Smart, Sustainable and Renewable Energy System in the TRACER Target Regions [PDF]

open access: yes, 2020
This report shows a status on the current energy generation technologies using coal as feedstock for each TRACER target region. This includes the analysis of the coal driven power plants, CHP plants, as well as the use of coal for small applications, e.g.
Doczekal, Christian   +4 more
core   +2 more sources

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