Results 31 to 40 of about 1,175,148 (341)

Dual-barrel conductance micropipet as a new approach to the study of ionic crystal dissolution kinetics [PDF]

open access: yes, 2013
A new approach to the study of ionic crystal dissolution kinetics is described, based on the use of a dual-barrel theta conductance micropipet. The solution in the pipet is undersaturated with respect to the crystal of interest, and when the meniscus at ...
Alex W. Colburn   +60 more
core   +1 more source

Coaching strategies in vocational orientation for promoting young women’s self-concept and career aspirations in chemistry

open access: yesChemistry Teacher International, 2021
Females and students of non-dominant ethnicity are less likely to aspire to science careers. However, overcoming discrimination in science and chemistry is a challenging task, especially in vocational orientation.
Hönig Marina   +3 more
doaj   +1 more source

Examining the Effects of Supervised Laboratory Instruction on Students’ Motivation and Their Understanding of Chemistry

open access: yesEducation Sciences, 2023
This paper examines the impact of supervised laboratory instruction (SLI) on grade 12 students’ understanding of acid–base and solution chemistry topics in the context of Ethiopian secondary schools.
Mirtachew T. Ali   +2 more
doaj   +1 more source

Quantitative Analysis of Different Formation Modes of Platinum Nanocrystals Controlled by Ligand Chemistry [PDF]

open access: yesNano Letters, 2017
Well-defined metal nanocrystals play important roles in various fields, such as catalysis, medicine, and nanotechnology. They are often synthesized through kinetically controlled process in colloidal systems that contain metal precursors and surfactant molecules.
Xi Yin   +6 more
openaire   +2 more sources

Identification Ways of Working of Students' High School Pekanbaru in Chemistry Learning

open access: yesJPP (Jurnal Pendidikan dan Pembelajaran), 2023
The background of this research is the absence of an assessment of communication and collaboration skills of students in overall chemistry learning when learning shifts from home to face-to-face limited during the pandemic.
Tissa Indah, Asyti Febliza
doaj  

TREND PENELITIAN TUGAS AKHIR MAHASISWA PENDIDIKAN KIMIA UNISKA MAB (2018-2021): KAJIAN PUBLIKASI ILMIAH

open access: yesAl-Ulum, 2022
Scientific publications are the estuary of research conducted by researchers and are becoming a wealth source of research information. The thesis published from 2018 to 2021 was reviewed to determine the trend of thesis research for the chemistry ...
Antoni Pardede   +8 more
doaj   +1 more source

Prediction of forbidden ultraviolet and visible emissions in comet 67P/Churyumov-Gerasimenko

open access: yes, 2015
Remote observation of spectroscopic emissions is a potential tool for the identification and quantification of various species in comets. CO Cameron band (to trace \cod) and atomic oxygen emissions (to trace H$_2$O and/or CO$_2$, CO) have been used to ...
Bhardwaj, Anil   +2 more
core   +1 more source

Synthesis and characterization of novel iron-modified geopolymer cement from laterite clay as low energy material

open access: yesAIP Advances
A new type of geopolymer with an iron–oxygen–silicon linkage is synthesized and reported for the first time. The aim was to enable the iron-rich clay material (laterite) as a raw material for the geopolymerization.
Akbar Ali   +8 more
doaj   +1 more source

Developing a survey instrument to evaluate tertiary chemistry students' attitudes and learning experiences [PDF]

open access: yes, 2001
New Zealand tertiary institutions, like others worldwide, have experienced a decline in science and chemistry enrolments in recent times as students seek other career paths that they perceive to be more lucrative.
Coll, Richard K.   +3 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

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