Results 31 to 40 of about 971,547 (422)

Does partial coating with titanium improve the radiographic fusion rate of empty PEEK cages in cervical spine surgery? A comparative analysis of clinical data

open access: yesPatient Safety in Surgery, 2017
Background Anterior cervical diskectomy and fusion (ACDF) is a well-established surgical treatment. Several types of intervertebral spacers can be used, but there is increasing evidence that PEEK cages yield insufficient fusion and thus less clinical ...
Andreas Kotsias   +4 more
doaj   +1 more source

Mercury as a Global Pollutant: Sources, Pathways, and Effects

open access: yesEnvironmental Science and Technology, 2013
Mercury (Hg) is a global pollutant that affects human and ecosystem health. We synthesize understanding of sources, atmosphere-land-ocean Hg dynamics and health effects, and consider the implications of Hg-control policies.
C. Driscoll   +4 more
semanticscholar   +1 more source

Effective Decontamination and Remediation After Elemental Mercury Exposure: A Case Report in the United States [PDF]

open access: yesJournal of Preventive Medicine and Public Health, 2021
Elemental mercury exposure can result in significant toxicity. Source decontamination and remediation are often required after larger elemental mercury exposures, but the details of these processes are infrequently reported. In the case described herein,
Kelly Johnson-Arbor, Brian Schultz
doaj   +1 more source

Natural, cultural and industrial heritage as a basis for sustainable regional development within the Geopark Idrija project (Slovenia) [PDF]

open access: yesGeographica Pannonica, 2010
The Idrija Municipality, situated in the western part of Slovenia, extends over an area of 294 km2 with around 12,000 inhabitants. The area of Idrija is placed at the crossing of Dinaric and Alpine mountain ranges.
Gorjup-Kavčič Mojca   +4 more
doaj  

Estimating chromium concentration in arable soil based on the optimal principal components by hyperspectral data

open access: yesEcological Indicators, 2021
The heavy metal pollution in arable soil poses a significant threat to human health. Thus, it is of great significance to investigate the contamination of heavy metal elements in the soil.
Fei Guo   +9 more
doaj  

Effects and mechanism of igneous rock on selenium in the tropical soil-rice system in Hainan Province, South China

open access: yesChina Geology, 2022
To illuminate the migration and transformation of selenium (Se) in the igneous rock-soil-rice system, 285 pairs of rhizosphere soil and rice samples were collected from the granitoid and basalt areas in Hainan Province, South China. The contents of Se in
Xiu-jin Liu   +7 more
doaj  

The prevalence of inorganic mercury in human cells increases during aging but decreases in the very old

open access: yesScientific Reports, 2021
Successful aging is likely to involve both genetic and environmental factors, but environmental toxicants that accelerate aging are not known. Human exposure to mercury is common, and mercury has genotoxic, autoimmune, and free radical effects which ...
Roger Pamphlett
doaj   +1 more source

When Less Is More $\ldots$ Few Bit ADCs in RF Systems

open access: yesIEEE Access, 2019
Digitizing RF signals using few bit ADCs can provide system advantages in terms of reduced power dissipation, wider sampling bandwidth, and decreased demand for digital throughput. The diversity of established applications based on few bit ADCs, together
Christopher T. Rodenbeck   +5 more
doaj   +1 more source

Mercury recovery from acidic mercury solution using electrodeposition

open access: yes工程科学学报, 2020
Mercury, a heavy metal, can seriously harm human bodies and the environment due to its characteristics of high toxicity, biological enrichment, and long-range migration.
Zi-liang LI   +4 more
doaj   +1 more source

Empty polyetheretherketone (PEEK) cages in anterior cervical diskectomy and fusion (ACDF) show slow radiographic fusion that reduces clinical improvement: results from the prospective multicenter “PIERCE-PEEK” study

open access: yesPatient Safety in Surgery, 2017
Background Anterior cervical diskectomy and fusion (ACDF) is a well-established surgical treatment for radiculopathy and myelopathy. Previous studies showed that empty PEEK cages have lower radiographic fusion rates, but the clinical relevance remains ...
Olaf Suess   +5 more
doaj   +1 more source

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