Results 81 to 90 of about 400,616 (308)

Development and validation of instruments to assess content knowledge and topic specific pedagogical content knowledge of teachers of organic chemistry

open access: yes, 2013
In 1986, Shulman described Pedagogical Content Knowledge (PCK), as the transformation of Content Knowledge into various forms which help students to understand the concepts.
Vokwana, Nonkanyiso Queen   +1 more
core  

Six Phases of Cosmic Chemistry [PDF]

open access: yes, 2013
The article presents a conceptually unified, quantitative account of the development of chemical phenomena throughout the cosmic history, with a detailed discussion of the cosmological, astrophysical, geological, biological and anthropological context ...
Lamza, Lukasz
core  

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Flipping the class – University chemistry students’ experiences from a new teaching and learning approach

open access: yesChemistry Teacher International, 2019
University chemistry courses have for a long time had a similar conventional approach to teaching, with chemistry professors lecturing in a traditional manner.
Broman Karolina, Johnels Dan
doaj   +1 more source

When Stereochemistry Raised Its Ugly Head in Coordination Chemistry—An Appreciation of Howard Flack

open access: yesChemistry, 2020
Chiral compounds have played an important role in the development of coordination chemistry. Unlike organic chemistry, where mechanistic rules allowed the establishment of absolute configurations for numerous compounds once a single absolute ...
Edwin C. Constable   +1 more
doaj   +1 more source

A COMPARISON OF ORGANIC AND CHEMICAL FERTILIZERS FOR TOMATO PRODUCTION

open access: yes, 2012
Tomato (Lycopersicon esculentum Mill.) is one of the most popular and versatile vegetables in the world, and organic production with a high yield and desirable quality is a target of many producers.
Peyvast, Gholam-Ali   +4 more
core  

Boiling Point (BP) Determination Using Melting Point Excellence System MP80 (Organic Chemistry Lecture-Demonstrations)

open access: yes, 2021
This lecture-demonstration discusses measurement of Boiling Point (BP) of an organic liquid sample using METTLER TOLEDO Melting Point Excellence System MP80 leading from understanding of determination of Normal Boiling Point (NBP) to running analysis ...
PhD Student Glenn Oldham and Dr Yulia Alekseeva
core  

CASSCF calculations for photoinduced processes in large molecules: Choosing when to use the RASSCF, ONIOM and MMVB approximations [PDF]

open access: yes, 2007
25/09/12 meb, Author version attached, OK to pub.In this article, we compare and contrast the RASSCF, ONIOM and MMVB electronic structure methods for calculating relaxation paths on potential energy surfaces of the excited states of large molecules, and
Morrison, M   +7 more
core   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Applications of spectroscopic methods to problems in pyrrole chemistry

open access: yes, 1965
[Typescript]180 leaves : 2 reprintsThesis ((Ph.D.)--University of Adelaide, Dept.
Guy, Robert William
core  

Home - About - Disclaimer - Privacy