Over the period February 2023 to July 2023, the aim was to develop a method for the determination of endotoxin in pharmaceutical products according to GMP rules. To bring this research to a successful conclusion, the intention was to demonstrate endotoxins in pharmaceutical products using the Kinetic …

Light is a form of energy produced by a luminous object which occurs as electromagnetic radiation and is closely related to other forms like radio waves, microwaves, gamma rays, infrared, UV and X radiation. The different kinds of radiation can be classified by using wavelengths. Only a small section …

The worldwide rise of skin cancer incidence rates increases the need to investigate ultraviolet radiation (UVR), as it is one of the main causes of skin cancer. 1 A ’ u to UVR varies depending on different factors such as the location of the individual and shielding effects. In this analysis, we evaluated …

We have developed an SI-traceable narrow-band tunable radiance source based on an optical parametric oscillator (OPO) and an integrating sphere for the calibration of spectroradiometers. The source is calibrated with a reference detector over the ultraviolet/visible spectral range with an uncertainty …

Wanneer de resultaten naar het voorkomen van vliegende insecten in Duitsland geëxtrapoleerd worden kan gezegd worden dat de populaties vliegende insecten in Nederland achteruit gaan. Dit kan een signaal zijn voor de overheid, de Vlinderstichting en andere ecologische instanties om onderzoek hiernaar …

Concepts to protect wood from factors like ultraviolet (UV) radiation, water and wood-decaying fungi with the help of fungi exist in different variants. The idea to treat wood with the help of linseed oil and the living fungus Aureobasidium pullulans originated in 1996 during an European project assessing …

Vitamine D deficiëntie komt voor bij zowel kinderen als volwassenen. Deficiëntie kan leiden tot verschillende ziektes, onder andere misvormingen van het skelet en groeiachterstanden (bij kinderen), osteomalacie en spierverzwakking. Een analysemethode voor vitamine D zonder het gebruik van een massaspectrometer …

Within the semiconductor industry the demand for ever decreasing chip and resistor sizes has forced the use of extreme ultraviolet (EUV) waves in lithography machines. The older generation lithography machines used lenses to focus the waves. These lenses aren't transparent for EUV waves with a wavelength …

The Pierre Auger group is studying ultra-high energy cosmic rays. Cosmic rays are charged particles which permanently hit and penetrate the atmosphere of the Earth. They will at a certain moment collide with nuclei in the atmosphere, like nitrogen. The results of such an interaction are new particles, …

Synthetic fibers, mainly polyethylene terephthalate (PET), polyamide (PA), polyacrylonitrile (PAN) and polypropylene (PP), are the most widely used polymers in the textile industry. These fibers surpass the production of natural fibers with a market share of 54.4%. The advantages of these fibers are …