Results 51 to 60 of about 368,451 (291)

Lilin Aromaterapi dari Minyak Atsiri Kulit Jeruk Manis (Citrus sinensis) [PDF]

open access: yes, 2020
Abstrak. Kulit jeruk manis saat ini hanya menjadi sampah yang belum banyak termanfaatkan. Ada senyawa kimia minyak atsiri bernilai ekonomi tinggi pada kulit jeruk yang disebut limonene yang memiliki aroma segar yang khas. Minyak atsiri Limonene diekstrak
Jumari, Arif   +2 more
core   +2 more sources

Effect of simulations enhanced with conceptual change texts on university students’ understanding of chemical equilibrium [PDF]

open access: yesJournal of the Serbian Chemical Society, 2018
The aim of this research was to investigate the effect of computer simulations enhanced with conceptual change texts (CS-CCT) on first year university students’ understanding of chemical equilibrium. A quasi-experimental design and one control group (CG,
Özmen Haluk, Naseriazar Akbar
doaj   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Synthesis of Syngas into Dimethyl Ether Using Cu-Zn-Al/-Alumina Bifunctional Catalyst as an Environmentally Friendly Fuel for Substituting Liquified Petroleum Gas [PDF]

open access: yes, 2022
. In order to meet the need for Liquified Petroleum Gas in Indonesia, which is currently around seventy percent of which is still imported, it is necessary to find a replacement.
Lourentius, Suratno
core   +2 more sources

The Correlation of Guided Inquiry Model with SETS Approach on Students' Critical Thinking Skills

open access: yesEDUSAINS, 2019
KORELASI MODEL INKUIRI TERBIMBING BERPENDEKATAN SETS TERHADAP KETERAMPILAN BERPIKIR KRITIS SISWA   Abstract Critical thinking skills in chemistry subject is still low. Teacher-centered learning is one of the causes of low critical thinking skills.
R. Melisa Nelvita Sari   +2 more
doaj   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Regeneration of Spent Nickel Catalyst via Hydrometallurgical Method [PDF]

open access: yes, 2023
. Nickel Catalyst is one of the common catalysts found in chemical industries. However, this catalyst has a limited lifetime indicated by having performance or activity drop so it is potentially become dangerous waste if the handling is not proper.
Amelia, Fransisca Poppy   +9 more
core   +2 more sources

Escher: the waterfall and chemical equilibrium. An analogy derived from art for chemistry [PDF]

open access: yes, 2011
Fil: Marín Becerra, Armando. Universidad Nacional Autónoma de México. Facultad de Química. México D.F. México.Fil: Garritz, Andoni. Universidad Nacional Autónoma de México. Facultad de Química. México D.F. México.Fil: Raviolo, Andrés.
Marín Becerra, Armando   +2 more
core   +2 more sources

The Driving Forces of Guest Substitution in Gas Hydrates—A Laser Raman Study on CH4-CO2 Exchange in the Presence of Impurities

open access: yesEnergies, 2012
The recovery of CH4 gas from natural hydrate formations by injection of industrially emitted CO2 is considered to be a promising solution to simultaneously access an unconventional fossil fuel reserve and counteract atmospheric CO2 increase. CO2 obtained
Bettina Beeskow-Strauch   +1 more
doaj   +1 more source

Equilibration Times of Dissolved Inorganic Carbon During pH Transitions

open access: yesFrontiers in Earth Science, 2022
Equilibration times of dissolved inorganic carbon (DIC) depend on conversion reactions between CO2(aq) and the dissociation products of carbonic acid [S = (H2CO3) + (HCO3−) + (CO32−)].
Ziv Sade, Shahar Hegyi, Itay Halevy
doaj   +1 more source

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