Results 71 to 80 of about 3,152,535 (345)

Um experimento para ensino de conceitos de transferência de calor em laboratório de física

open access: yesRevista Brasileira de Ensino de Física
Nesse artigo, apresentamos um experimento simples e de baixo custo para estudantes de física experimental em nível de terceiro ano universtário que possibilita a comprovação de conceitos fundamentais em fenômenos de transporte de energia na forma de ...
Everton Lüdke   +3 more
doaj   +1 more source

Photophoretic Strength on Chondrules. 2. Experiment [PDF]

open access: yes, 2014
Photophoretic motion can transport illuminated particles in protoplanetary disks. In a previous paper we focused on the modeling of steady state photophoretic forces based on the compositions derived from tomography and heat transfer.
Bischoff, Addi   +5 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Maximal angular correlation in $\gamma-\gamma$ coincidences: a quantitative study [PDF]

open access: yes, 2019
The measurement of the angular distribution of maximally correlated annihilation gamma rays radiated in coincidence, like those emitted from a $^{22}\mathrm{Na}$ source, is a classic experiment that is nowadays ordinarily performed in Nuclear Physics ...
Moura, Filipe
core   +2 more sources

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

THE EMPLOYMENT OF COMPUTER TECHNOLOGIES IN LABORATORY COURSE ON PHYSICS

open access: yesІнформаційні технології і засоби навчання, 2010
Present paper considers the questions on development of conceptually new virtual physical laboratory, the employment of which into secondary education schools will allow to check the theoretical knowledge of students before laboratory work and to acquire
Liudmyla M. Nakonechna
doaj  

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Communication in laboratory experiments [PDF]

open access: yes, 2019
Peer ...
Brandts, Jordi   +2 more
openaire   +3 more sources

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