Search results for "chemistry [Lysine]"
showing 10 items of 22 documents
Raman spectroscopy as a tool for ecology and evolution.
2017
7 pages; International audience; Scientists are always on the lookout for new modalities of information which could reveal new biological features that are useful for deciphering the complexity of biological systems. Here, we introduce Raman spectroscopy as a prime candidate for ecology and evolution. To encourage the integration of this microscopy technique in the field of ecology and evolution, it is crucial to discuss first how Raman spectroscopy fits within the conceptual, technical and pragmatic considerations of ecology and evolution. In this paper, we show that the spectral information holds reliable indicators of intra- and interspecies variations, which can be related to the enviro…
Visualizing Solubilization by a Realistic Particle Model in Chemistry Education
2019
An application for the visualization of the mixing process of two different types of structureless interacting particles is presented. The application allows to demonstrate on a qualitative basis, as well as by quantitatively monitoring the time evolution of the fractions of aggregates of different sizes, that the formation of a homogeneous mixture is the result of favorable solute-solvent interactions as well as by temperature. It is suggested that, along with the use of suitable macroscopic examples, visualizations by the present application are useful in elucidating concepts related to miscibility/solubility. The application is based on a two-dimensional realistic dynamic model where ato…
The Uniqueness of Teaching and Learning Chemistry
2009
Unfortunately, the current perception of Chemistry held by many students and the general public alike appears to be in stark contrast to its true nature. Although chemistry is ubiquitous in all aspects of our daily lives it continues to be perceived as highly theoretical and of little relevance. A clearer understanding of the fundamental Nature of Chemistry will be needed if students are to recognize its true importance and character. It is not possible to fully understand, and as a consequence accept on an intuitive basis, the 'mystery' and fascinations arising from the transformation of matter, without first adopting a convincing sub-microscopic view, able to connect observed macroscopic …
Mapping the Teaching of History of Chemistry in Europe
2016
Recent developments in the field of history of chemistry have introduced new topics, challenges, and connections to a broad range of scientific, political, cultural, economic, and environmental issues. New audiences for the history of chemistry have emerged along with new topics, protagonists, spaces, and historical narratives. This paper summarizes the main results of a recent survey to map the current situation of the teaching of history of chemistry in Europe. We review how and where history of chemistry is taught in Europe, considering not only graduate students in science programs, but also other audiences such as science teachers, and the general public. This paper also provides updat…
Modeller i kjemiundervisning - et eksempel på hvordan de kan bidra til læring og feillæring
2021
We discuss the use of analogical models in science education using examples from online learning resources. We have conducted a teaching program for a group of 7th grade pupils and a group of science teacher students, and the main theme of this program is the use of models in chemistry. Specifically, we study the effect of an analogical model that is designed to promote understanding of the properties of molecules, related to a paper chromatography experiment. Our research indicates that analogical models can be a useful tool to convey understanding of abstract concepts and non-visible phenomena, but they hold serious pitfalls that can lead to misunderstandings amongst students if not used…
Application of model quality evaluation to systems biology
2008
Application of model quality evaluation to the quasispecies models is presented. These models are useful for the analysis of the DNA and RNA evolution and for the description of the population dynamics of viruses and bacteria. An estimate of the parameters together with their interval of variability is computed and the quality evaluation is tested on the basis of the model prediction error capability.
Jauno ķīmiķu skolas mācību satura sistematizēšana un izstrāde
2017
Jauno ķīmiķu skolas mācību satura sistematizēšana un izstrāde. Diča M., darba vadītājs Doc., Dr.ķīm. Logins J. Maģistra darbs, 64 lappuses, 8 attēli, 1 tabula, 23 literatūras avoti, 14 pielikumi. Latviešu valodā. Darba autore izpētījusi ārpusskolas darba organizēšanu ķīmijā, kā arī pedagoģiska un psiholoģiska rakstura zinātnisko literatūru, piedāvājot informāciju par ārpusskolas darba ķīmijas organizācijas formām, interaktīvām metodēm un ķīmijas eksperimenta nozīmi ķīmijas apguvē. Darba izstrādāti ieteikumi ārpusskolas nodarbībām un metodiskie materiāli Jauno ķīmiķu skolas nodarbībām, ko var izmantot ne tikai ārpusskolas pasākumos, bet arī mācību ārpusstundās ķīmijas apguvei.
Ciencia de la sostenibilidad: un nuevo campo de conocimientos al que la química y la educación química están contribuyendo
2013
Los dominios de conocimiento más diversos contribuyen actualmente al tratamiento de problemas socioambientales. Se han publicado muchos artículos y libros en los campos de Química Verde, Ecología Industrial, Ingeniería Ambiental, Economía Verde (baja en carbono), Educación Ambiental, etc. Pero hace poco se entendió que estas contribuciones son insuficientes y que necesitamos una Ciencia de Sostenibilidad que los integra a todos. Este documento estudia el surgimiento de este nuevo campo de conocimiento e investigación, cuyo objetivo explícito es contribuir a la transición a una sociedad sostenible. The most diverse knowledge domains are currently contributing to the treatment of socio-enviro…
Workshop: iPads in Upper Secondary School Chemistry Education
2014
At the workshop arranged at the National Days of Chemical Education the participants had an opportunity to try out various Ipad apps and methods for utilizing them in chemistry education. The themes were based on the apps used during chemistry teacher education course arranged by the department of chemistry and methods developed on the teacher training school at the University of Jyväskylä. The apps used included Socrative Student, Google Drive, Graphical Analysis, ChemDoodle ja QR-reader. Out of these Socratice, which collects students answers to questions created by the teacher, was considered easy-to-use and the most useful by the participants. The participants also felt, that the worksh…
KOSMOS 2017 Peru mesocosm study: overview data
2020
Eastern boundary upwelling systems (EBUS) are among the most productive marine ecosystems on Earth. The production of organic material is fueled by upwelling of nutrient-rich deep waters and high incident light at the sea surface. However, biotic and abiotic factors can mod- ify surface production and related biogeochemical processes. Determining these factors is important because EBUS are considered hotspots of climate change, and reliable predic- tions of their future functioning requires understanding of the mechanisms driving the biogeochemical cycles therein. In this field experiment, we used in situ mesocosms as tools to improve our mechanistic understanding of processes con- trolling…