Acta et Commentationes Exact and Natural Sciences

Current Issue

Vol 21 No 1 (2026)
Published July 23, 2026
Acta et Commentationes Exact and Natural Sciences

The Acta et Commentationes scientific journal, the Exact and Natural Sciences series is a periodical publication, whose purpose is to reflect and develop the modern scientific phenomenon in the field of Exact and Natural Sciences (Mathematics,  Chemistry and Biology); dissemination of the results of the scientific performance researches (fundamental and applicative) in the fields of profile; publicizing new technologies in order to implement them; addressing and elucidating the scientific investigative problems specific to the journal profiles.

The journal is included in:

1. the Register of Scientific Journals of the Republic of Moldova in category B and can be accessed at https://ibn.idsi.md/ro/vizualizare_revista/418

2. the Directory of Open Access Journals (DOAJ) and can be accessed at https://doaj.org/toc/2587-3644

 

The e-mail address of the journal is aec@upsc.md

EXACT SCIENCES

Corneliu Cojocaru, Petronela Pascariu, Petrișor Samoilă
9-17
Remediation of pollutions with oily products using polymer-based fibers as sorbents
https://doi.org/10.36120/2587-3644.v21i1.9-17
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Ecaterina Beleaev, Daniel Brüx, Paul Kögerler, Svetlana G. Baca
18-28
Pentanuclear pivalate cluster with a Co(III)₂Ce(IV)₃ core
https://doi.org/10.36120/2587-3644.v21i1.18-28
PDF
Olga Danilescu, Ion Bulhac, Paulina Bourosh, Maria Cocu, Yurii Chumakov
29-38
Template synthesis, crystal and electronic structure of trinuclear Co(II) complex based on new 15-dentate macrocyclic Schiff base ligand
https://doi.org/10.36120/2587-3644.v21i1.29-38
PDF
Daniel Podgornîi, Sergiu Shova, Svetlana G. Baca
39-45
A heterometallic hexanuclear Fe₄Sm₂ cluster supported by pivalate and phenyldiethanolamine ligands
https://doi.org/10.36120/2587-3644.v21i1.39-45
PDF
Natalia Talmaci, Diana Dragancea
46-53
Coordination compounds of copper(II) based on the coordinating agent 1,5-bis(2-hydroxy-1-naphthaldehyde)carbohydrazone
https://doi.org/10.36120/2587-3644.v21i1.46-53
PDF
Mikhail Gorbaciov, Natalia Gorinchoy, Iolanta Bălan, Olga Moroz, Ion Arsene
54-61
Antioxidant activity of ionic liquids formed by carnitine and food acids: a correlation between the data of their FRAP assay and their pKₐ values
https://doi.org/10.36120/2587-3644.v21i1.54-61
PDF
Lucas Repecka Alves, Maira de Lourdes Rezende, Aparecido Junior de Menezes
62-68
Optimization of holocellulose extraction from spent coffee grounds using factorial design
https://doi.org/10.36120/2587-3644.v21i1.62-68
PDF
Crina Vicol, Iolanta Bălan, Simona Nica, Gheorghe Duca
69-78
Study of the antiradical activity of wine polyphenols using UV--VIS and DFT methods
https://doi.org/10.36120/2587-3644.v21i1.69-78
PDF
Matheus da Silva Costa, Éverton da Paz Santos, Ana Carolina de Oliveira Plens
79-87
Low-carbon hydrogen production under Brazilian law 14.948/2024
https://doi.org/10.36120/2587-3644.v21i1.79-87
PDF
Eugenia Moraru, Mihaela Buga, Serghei Moldovanu, Irina Ceban
88-97
Evaluation of the structural and compositional properties of carbon adsorbents derived from local waste by the SEM-EDX technique
https://doi.org/10.36120/2587-3644.v21i1.88-97
PDF
Natalia Neagu, Mihail Popa
98-116
SO(2,R)-invariant polynomials of a differential system which are involved in solving the stability problem of unperturbed motion in the case of a center and a focus
https://doi.org/10.36120/2587-3644.v21i1.98-116
PDF
Lidia Mușinschi, Victor Pricop
117-123
The ordinary Hilbert series for Sibirsky graded algebras of the differential system s(5,7)
https://doi.org/10.36120/2587-3644.v21i1.117-123
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