Size exclusion chromatography (SEC) is an important technique for the characterization of high molecular substances such as proteins or polymers. It is the standard method to determine and quantify aggregation levels for protein-based pharmaceuticals and is generally required for regulatory approval. This Application Note describes a simple and sensitive method for the quantitative analysis of ...

This paper describes a newly adapted instrument for measuring novice-to-expert-like perceptions about biology: the Colorado Learning Attitudes about Science Survey for Biology (CLASS-Bio). Consisting of 31 Likert-scale statements, CLASS-Bio probes a range of perceptions that vary between experts and novices, including enjoyment of the discipline, propensity to make connections to the real world...

there was a turning point in each period of time which human has discovered a new sight about the world and nature order in a way, and then has presented this relation by numeral, artful and industrial language. biourbanism focuses on the urban organism, considering it as a hyper complex system, according to its internal and external dynamics and their mutual interactions. nowadays when it is t...

Handwriting is an acquired tool used for communication of one's observations or feelings. Factors that influence a person's handwriting not only dependent on the individual's bio-mechanical constraints, handwriting education received, writing instrument, type of paper, background, but also factors like stress, motivation and the purpose of the handwriting. Despite the high variation in a person...

Vekovima čovekova prirodna radoznalost za ljudsko telo dovodila je do stvaranja raznih instrumenata od kojih su mnogi slični današnjoj dijagnostičkoj opremi. Prvi veliki napredak u endoskopiji učinjen je u 19. veku. Filip Bocini (Phillip Bozzini, 1773–1809) opisao je 1806. godine instrument koji vizuelizuje unutrašnjost mokraćne bešike i nazvao ga lichtleiter . Okrugli otvor lichtleitera bio je...

These attacks had a basis in government efforts to promote agbiotech as an instrument of a specific political-economic agenda. European policies have promoted capital-intensive technological innovation as an essential means for more efficient production methods, more lucrative products, and thus a competitive advantage in the global economy. This agenda corresponds to a series of policy slogans...

Developing liquid chromatography tandem mass spectrometry (LC-MS/MS) analyses of (bio)chemicals is both time consuming and challenging, largely because of the large number of LC and MS instrument parameters that need to be optimized. This bottleneck significantly impedes our ability to establish new (bio)analytical methods in fields such as pharmacology, metabolomics and pesticide research. We ...