While problems with cell line misidentification have been known for decades, an unknown number of published papers remains in circulation reporting on the wrong cells without warning or correction. Here we attempt to make a conservative estimate of this 'contaminated' literature. We found 32,755 articles reporting on research with misidentified cells, in turn cited by an estimated half a millio...

Healthcare-associated infections (HAIs) are a global concern, affecting all western hospitals, and profoundly impairing the clinical outcome of up to 15% of all hospitalized patients. Persistent microbial contamination of hospital surfaces has been suggested to contribute to HAIs onset, representing a reservoir for hospital pathogens. On the other hand, conventional chemicals-based sanitation d...

The paper summarizes results of investigation of the current state of radioactive contamination on site being under consideration for planned nuclear power plant in northern Poland. Thanks to use of sequential procedure it was possible to determine activity concentrations for radioisotopes of nine elements, both natural and artificial. Results show that observed levels of radioactive contaminat...

This study explored the role of threat and contamination-related associations in spider phobia. Treatment-seeking (n=60) and non-phobic (n=30) individuals completed threat and disgust-related Implicit Association Tests (IATs). Phobic individuals were assessed before and after one session of 2.5h in vivo exposure. To differentiate actual treatment effects from test-retest effects on the IAT, hal...

We use cosmological simulations of reionization to predict the possible signal from the redshifted 21 cm line of neutral hydrogen in the pre-reionization era and to investigate the observability of this signal. We show that the separation of the mean (global) signal over the whole sky from the known foreground contamination may be feasible, but very challenging. In agreement with previous studi...

Abstract: By 2025, when world population is projected to be 8 billion, improving living standards without destroying the environment is a global challenge. Contamination of the environment with pathogens and heavy metal ions has been an important concern throughout the world for decades. Development of sensors for real-time detection of toxic metals and bacterial contamination in water supplies...

In the present paper some aspects of the biology and various factors influencing the potential for environmental contamination with protozoan parasites infective stages implicated in water and foodborne diseases are described. The major protozoan species that affect humans are Entamoeba histolytica, Acanthamoeba sp., Neagleria sp. Giardia intestinalis, Cryptosporidium parvum, Cyclospora cayetan...

Extracts of normal brains obtained at autopsy and cerebrospinal fluid (CSF) from patients with global brain ischemia were analyzed for creatine kinase (CK; EC 2.7.3.2) isoenzymes. We used both qualitative and quantitative assays (electrophoresis and immunoinhibition). Brain extracts contained CK-BB isoenzyme and mitochondrial CK. In 54 CSF samples free of blood contamination and with total acti...

Intersex fish, antibiotic-resistant bacteria, falling sperm counts, and contamination of drinking water: these are just some of the potential consequences related to the growing problem of pharmaceutical pollution. With the rising use and complexity of modern pharmacologic care, many investigators have focused their efforts on demonstrating that drugs administered to patients will inevitably fi...

The contemporary scientific discussion regarding PCDD/PCDF sources focuses mainly on thermal emissions (e.g. waste incineration, sinter plants, secondary metal production etc.), however, the history of contamination with dioxins and dioxin-like chemicals is closely related to the chlorine industry and the production of chlorine and chlorinated organics and their application. While the majority ...