- Publisher
- American Chemical Society
- Funding type
- Unknown
Journal profile
ACS Omega
- Quartile Q1
- Open access: Gold
- In DOAJ
- Final score
-
33.18 out of 100
comparable only within the subject subfield Methodology : Final score
- KZ-SJR
-
12.86
- Data confidence
-
60 out of 100 medium
Rising
Shows the past trend of data confidence, not a forecast or a quality judgement.Data-confidence history Date Confidence 2026-10-23 35 2026-10-25 60 rates our data about the journal, not the journal itself Methodology : Data confidence
General information
- ISSN (print)
- 2470-1343
Publishing policy & standards
Open access & APC
- Open access type
- Open access: Gold
Standards compliance
- COPE membership
- Unknown
- Plan S compliance
- No data
- License
- CC BY
- DOAJ directory
- Indexed in DOAJ
Metrics
Figures as of 10/25/2026
- Final score
-
33.18
out of 100; comparable only within the subject subfield
How computed
Weighted sum of the entity's normalised metrics, scaled to 0–100; the weights are versioned and configurable and set the ranking position. Compare only within the same subject subfield.
Full methodology - KZ-SJR
-
12.86
How computed
Iterative PageRank-like score over the citation graph: each citation is weighted by the citing journal's rank; domestic citations get a versioned coefficient (1.10–1.25). Scaled to 0–100.
Full methodology - Impact Factor
-
0.43
How computed
Current-year citations to the journal's articles from the previous 2 years, divided by the number of those articles. Source: Crossref/OpenAlex.
Full methodology - Impact Factor (5-year)
-
0.43
How computed
Like the Impact Factor but over a 5-year window: current-year citations to articles from the previous 5 years, divided by those articles.
Full methodology - CiteScore
-
0.75
How computed
Citations received over a three-year window by the journal's articles published in that same window, divided by the number of those articles. Source: Crossref/OpenAlex.
Full methodology - h-index
-
6
How computed
The largest number h such that h publications have each been cited at least h times.
Full methodology - h5-index
-
5
How computed
Same as the h-index, but restricted to publications from the last 5 years.
Full methodology - Total citations
-
127
How computed
Total citations received by all of the journal's publications over the period. Source: Crossref/OpenAlex.
Full methodology - Citations per paper
-
1.72
How computed
Total citations divided by the total number of publications over the period.
Full methodology - FWCI
-
1.49
How computed
Field-Weighted Citation Impact: the mean over the journal's articles of (actual ÷ expected citations for the article's subfield and year); 1.0 = the field average. Display-only — not a ranking weight.
Full methodology - RCR
-
1.55
How computed
Relative Citation Ratio: the journal's total citations divided by the total expected for its field and year (a ratio of sums, versus FWCI's mean of ratios). Declared in the target configuration of the Final Score; not part of the calculation in force yet.
Full methodology - Eigenfactor
-
0.13
How computed
PageRank-style influence over the 5-year journal-to-journal citation graph with self-citations removed. Reported as the journal's share of total network influence (Σ across all journals = 100).
Full methodology - Article Influence Score
-
1.73
How computed
Eigenfactor normalised by the journal's share of articles in the 5-year window: AIS = (0.01·EF) / article_share. The Platform corpus's average journal scores 1.0.
Full methodology - Immediacy Index
-
0.17
How computed
Citations a journal's articles receive in their year of publication, divided by the number of those articles. Same-year impact.
Full methodology - Cited Half-Life
-
2
How computed
Median age (in years) of the articles cited in the current year. Higher values mean longer-lived references.
Full methodology - Open Access share
-
100%
How computed
Share of articles published in the last 5 years with oa_status ∈ {gold, green, hybrid}. Source: Crossref/OpenAlex/Unpaywall.
Full methodology - Inter-university co-authorship share
-
59%
How computed
Share of the journal's last-5-years articles co-authored across two or more different Kazakhstani universities. Domestic (KZ↔KZ) collaboration; advisory display metric, not part of the ranking.
Full methodology
No data for 1 metric International co-authorship share Show how they are calculated Collapse the list
These values have not been calculated for this journal yet. How each metric is calculated and what data it needs:
-
International co-authorship share
Share of the journal's articles over the last 5 years that have at least one author from a country other than the journal's own. An article with several foreign co-authors counts once; an article where no author's country can be resolved is left out. Computed from Crossref/OpenAlex affiliations.
Methodology : International co-authorship share
Methodology
Where these numbers come from
No number on this page was entered at a guess. Each one is gathered from external databases, matched by identifier, validated and computed by a fixed formula. Below is the whole path: where the data comes from, how it is matched and checked, and what the metrics behind the final score measure. Every other metric states its own formula — in the metric grid above.
Sources
The platform collects data from eleven external databases and services. Each source is enabled separately and has its own harvesting schedule. The main ones:
- Crossref — publication metadata by DOI: authors and journal details.
- OpenAlex — publications, authors, journals, organisations and subject categories.
- ORCID — researcher profiles, their affiliations and publications.
- DOAJ — open access licences and whether the journal is indexed in DOAJ.
- Unpaywall — the open access status of an article by its DOI.
Some details do not come from harvesting: editorial offices fill in individual fields, administrators enter and correct data, and file upload is supported. Such records go through the same matching and confidence rules, but do not count as an external source.
Calculation window
Each metric has its own window: two years for the impact factor, three for CiteScore, five for the five-year impact factor and for the expected-citation baseline. Rankings are recalculated on a schedule rather than on every data update: the planned recalculation runs once a day during the night hours, the previous version stays available while it runs, and new values become public for all objects at the same time.
Verification
Records are matched by DOI and journals by ISSN; where identifiers are missing, titles are compared: a similarity of 95 % or above merges records automatically, 90–94 % sends them to manual review. Duplicates are not thrown away: on a merge the data and links move to the canonical record, and its former address permanently redirects there, so previously published links and exports keep working.
Manual corrections
A metric value can be corrected manually by the platform's editorial team. It is the corrected value that is shown publicly and used for sorting — in listings, rankings, the profile, comparison, exports and open data — and it carries a note that it was corrected manually. The formulas do not change: a correction fixes a single value, not the methodology.
The data path
Five steps from someone else's record of an article to the number on this page.
- 1
Harvesting Records of articles, references and authors are pulled from external sources on a schedule: each source carries its own, stored alongside it. A failure of one source does not stop harvesting from the rest. For every record we track how many independent sources confirmed the data.
- 2
Matching A DOI match means the same object, an ISSN match the same journal. A match does not create a new record — it confirms the one already collected and raises the number of confirming sources; where identifiers are missing, titles are compared.
- 3
Normalisation Titles, dates and formats are brought to a single form; the anchor identifiers are DOI for articles, ISSN for journals, ORCID for authors and ROR for organisations. Subjects are not derived anew: the topic hierarchy is loaded into a reference book, and ready-made subject assignments are imported and aggregated up to the journal level. Under a separate rule, the language versions of one work are linked into a group rather than merged into one record, and uncertain matches go to manual review.
- 4
Scoring Every record gets a confidence score from 0 to 100. It is raised by confirmed identifiers, agreement between several independent sources, completeness of the mandatory fields and freshness of the update; it is lowered by conflicts between sources, missing identifiers and a low-trust source. From 80 the record is published without extra review; 60–79 is published but at reduced confidence, with a manual check advisable; below 60 it is not published until a review confirms it.
- 5
Calculation Metrics are computed by the formulas below and published together with their calculation window and confidence score. A metric that does not clear the confidence threshold is left out of the final score; an object that does not clear the publication threshold enters neither the ranking nor the cohort the metrics are normalised against.
Formulas in words
The same explanation that opens next to each metric, collected into a single table. The formulas are fixed: a change of methodology is introduced as a new version with an effective date, and earlier results are kept with their version mark and never rewritten retroactively.
| Metric | What exactly is counted | Window | Sources |
|---|---|---|---|
| Impact Factor | The average number of citations to the journal's articles over a two-year window: the sum of citations divided by the number of articles in the same period. | 2 years of publications | Computed from the collected corpus of articles and citations |
| Impact Factor (5-year) | The same rule with a five-year window of publications. | 5 years of publications | Computed from the collected corpus of articles and citations |
| h-index | The largest h for which the journal has h articles cited at least h times each. | No year window: all articles with a known citation count | Computed from the collected corpus of articles and citations |
| h5-index | The same h-index computed over the articles of the last five years only. | Articles of the last 5 years | Computed from the collected corpus of articles and citations |
| CiteScore | The average number of citations over a three-year window. | 3 years | Computed from the collected corpus of articles and citations |
| FWCI | The average across articles of the ratio between actual citations and those expected for their subject subfield and year of publication. A value above one means citation rates above average. | 5 years of publications, citations counted cumulatively | Platform corpus: Kazakhstan works from OpenAlex and Crossref |
| KZ-SJR | The iterative weight of a journal in the journal-to-journal citation network: a citing journal's contribution is proportional to its own rank, so a reference from a more influential journal weighs more. A local-impact coefficient applies to citations between different Kazakhstani journals whose affiliation is confirmed; journal self-citations and foreign citations count at the base weight. The resulting values are normalised to a 0–100 scale and split into quartiles. | No separate window | Computed from the journal-to-journal citation network |
| Immediacy Index | The average number of citations articles receive in their year of publication. | Current year | Computed from the collected corpus of articles and citations |
| Final score | A weighted sum of metrics. The metrics are first normalised within the subject subfield — from 0 to 1 against the maximum in that subfield — and the quartiles are computed there as well. The target weight configuration is impact factor 25 %, KZ-SJR 20 %, CiteScore 15 %, h-index 15 %, RCR 15 %, quartile 10 %; for now a reduced subset of it applies — KZ-SJR, impact factor and h-index. | No separate window: recalculated on schedule | The metrics listed above |
The data quality behind every number
Confidence is a service score of our data about an object, not an expert judgement of the object itself. A low value means the sources disagree with each other, mandatory fields or identifiers are missing, or the data came from a low-trust source.
The platform reconciles differences between sources regularly: critical fields and the metrics that form the ranking at least once a week, less sensitive reference data at least once a month. A small discrepancy is only logged; a significant one creates a manual review task with an assigned owner.
You can report an error in the data through the feedback form: the request enters the tracking system and is followed through to a reply to the person who sent it.
Full methodology Report a data issue
The methodology changes by versions: each has an effective date, and earlier values are never rewritten retroactively.
Subject areas and topics
Subject areas
- Medicine Pharmacology Microbial Natural Products and Biosynthesis
- Agricultural and Biological Sciences Soil Science Soil Carbon and Nitrogen Dynamics
- Physics and Astronomy Astronomy and Astrophysics Astro and Planetary Science
- Earth and Planetary Sciences Atmospheric Science Atmospheric chemistry and aerosols
- Chemistry Analytical Chemistry Analytical chemistry methods development
- Environmental Science Water Science and Technology Adsorption and biosorption for pollutant removal
- Biochemistry, Genetics and Molecular Biology Molecular Biology Protein Structure and Dynamics
- Engineering Electrical and Electronic Engineering Advancements in Battery Materials
- Medicine Genetics Glioma Diagnosis and Treatment
- Agricultural and Biological Sciences Plant Science Plant Stress Responses and Tolerance
- Chemical Engineering Fluid Flow and Transfer Processes Advanced Combustion Engine Technologies
- Computer Science Computational Theory and Mathematics Computational Drug Discovery Methods
- Energy Renewable Energy, Sustainability and the Environment Electrocatalysts for Energy Conversion
- Chemistry Organic Chemistry Organometallic Complex Synthesis and Catalysis
- Energy Renewable Energy, Sustainability and the Environment Advanced Photocatalysis Techniques
- Agricultural and Biological Sciences Food Science Essential Oils and Antimicrobial Activity
- Medicine Epidemiology Influenza Virus Research Studies
- Engineering Mechanics of Materials Hydrocarbon exploration and reservoir analysis
- Engineering Civil and Structural Engineering Asphalt Pavement Performance Evaluation
- Chemistry Organic Chemistry Surfactants and Colloidal Systems
- Materials Science Polymers and Plastics Textile materials and evaluations
- Energy Renewable Energy, Sustainability and the Environment TiO2 Photocatalysis and Solar Cells
- Physics and Astronomy Atomic and Molecular Physics, and Optics Semiconductor materials and interfaces
- Physics and Astronomy Astronomy and Astrophysics Astrophysics and Star Formation Studies
- Materials Science Biomaterials Nanoparticle-Based Drug Delivery
- Agricultural and Biological Sciences Plant Science Medicinal Plant Research
- Engineering Electrical and Electronic Engineering Semiconductor materials and devices
- Engineering Electrical and Electronic Engineering Electrochemical sensors and biosensors
- Engineering Biomedical Engineering Thermochemical Biomass Conversion Processes
- Medicine Infectious Diseases SARS-CoV-2 and COVID-19 Research
- Materials Science Ceramics and Composites Glass properties and applications
- Medicine Rehabilitation Wound Healing and Treatments
- Physics and Astronomy Atomic and Molecular Physics, and Optics Semiconductor Quantum Structures and Devices
- Materials Science Materials Chemistry Machine Learning in Materials Science
- Medicine Biochemistry Phytochemicals and Antioxidant Activities
- Environmental Science Pollution Microbial bioremediation and biosurfactants
- Engineering Electrical and Electronic Engineering Organic Electronics and Photovoltaics
- Engineering Ocean Engineering Drilling and Well Engineering
- Chemistry Spectroscopy Advanced Proteomics Techniques and Applications
- Chemistry Organic Chemistry Advanced Polymer Synthesis and Characterization
- Engineering Electrical and Electronic Engineering Fuel Cells and Related Materials
- Medicine Pulmonary and Respiratory Medicine Prostate Cancer Treatment and Research
- Engineering Biomedical Engineering Phase Equilibria and Thermodynamics
- Chemistry Organic Chemistry Synthesis and biological activity
- Engineering Electrical and Electronic Engineering Advanced Battery Materials and Technologies
- Environmental Science Waste Management and Disposal Wastewater Treatment and Reuse
- Engineering Mechanical Engineering Surface Treatment and Coatings
- Engineering Mechanical Engineering Heat Transfer and Optimization
- Medicine Complementary and alternative medicine Traditional Chinese Medicine Analysis
- Materials Science Materials Chemistry Nanoparticles: synthesis and applications
- Materials Science Materials Chemistry Graphene research and applications
- Chemical Engineering Fluid Flow and Transfer Processes Rheology and Fluid Dynamics Studies
- Energy Renewable Energy, Sustainability and the Environment Solar Thermal and Photovoltaic Systems
- Engineering Electrical and Electronic Engineering Perovskite Materials and Applications
- Engineering Building and Construction Dyeing and Modifying Textile Fibers
- Biochemistry, Genetics and Molecular Biology Molecular Medicine Hydrogels: synthesis, properties, applications
- Materials Science Materials Chemistry ZnO doping and properties
- Materials Science Electronic, Optical and Magnetic Materials Gold and Silver Nanoparticles Synthesis and Applications
- Engineering Automotive Engineering Advanced Battery Technologies Research
- Engineering Automotive Engineering Additive Manufacturing and 3D Printing Technologies
- Chemistry Inorganic Chemistry Metal-Organic Frameworks: Synthesis and Applications
- Agricultural and Biological Sciences Food Science Proteins in Food Systems
- Chemical Engineering Catalysis Catalysts for Methane Reforming
- Medicine Biochemistry Antioxidant Activity and Oxidative Stress
- Engineering Electrical and Electronic Engineering Electrodeposition and Electroless Coatings
- Biochemistry, Genetics and Molecular Biology Cancer Research Protease and Inhibitor Mechanisms
- Materials Science Materials Chemistry Solid-state spectroscopy and crystallography
- Engineering Computational Mechanics Ion-surface interactions and analysis
- Materials Science Materials Chemistry Carbon Nanotubes in Composites
- Engineering Mechanics of Materials Metal and Thin Film Mechanics
- Engineering Ocean Engineering Enhanced Oil Recovery Techniques
- Physics and Astronomy Atomic and Molecular Physics, and Optics Spectroscopy and Quantum Chemical Studies
- Engineering Mechanical Engineering Lubricants and Their Additives
- Agricultural and Biological Sciences Food Science Polysaccharides Composition and Applications
- Materials Science Materials Chemistry Material Dynamics and Properties
- Engineering Mechanics of Materials Energetic Materials and Combustion
- Medicine Infectious Diseases HIV/AIDS drug development and treatment
- Engineering Aerospace Engineering Synthetic Aperture Radar (SAR) Applications and Techniques
- Chemistry Analytical Chemistry Petroleum Processing and Analysis
- Materials Science Biomaterials Nanocomposite Films for Food Packaging
- Materials Science Biomaterials Advanced Cellulose Research Studies
- Agricultural and Biological Sciences Plant Science Phytochemistry and Biological Activities
- Engineering Aerospace Engineering Rocket and propulsion systems research
- Materials Science Materials Chemistry Diamond and Carbon-based Materials Research
- Engineering Control and Systems Engineering Process Optimization and Integration
- Materials Science Polymers and Plastics Polymer Synthesis and Characterization
- Materials Science Materials Chemistry Quantum Dots Synthesis And Properties
- Engineering Mechanical Engineering Carbon Dioxide Capture Technologies
- Materials Science Surfaces, Coatings and Films Surface Modification and Superhydrophobicity
- Engineering Mechanical Engineering Hydraulic Fracturing and Reservoir Analysis
- Engineering Ocean Engineering Reservoir Engineering and Simulation Methods
- Chemistry Physical and Theoretical Chemistry Electrostatics and Colloid Interactions
- Engineering Mechanical Engineering Industrial Gas Emission Control
- Medicine Pulmonary and Respiratory Medicine Photodynamic Therapy Research Studies
- Engineering Mechanical Engineering Cellular and Composite Structures
- Materials Science Materials Chemistry Thermal and Kinetic Analysis
- Environmental Science Pollution Pharmaceutical and Antibiotic Environmental Impacts
- Environmental Science Health, Toxicology and Mutagenesis Water Treatment and Disinfection
- Engineering Mechanical Engineering Membrane Separation and Gas Transport
- Engineering Biomedical Engineering Nanofluid Flow and Heat Transfer
- Environmental Science Environmental Engineering CO2 Sequestration and Geologic Interactions
- Chemistry Organic Chemistry Antimicrobial agents and applications
- Environmental Science Environmental Chemistry Methane Hydrates and Related Phenomena
- Agricultural and Biological Sciences Plant Science Plant Growth Enhancement Techniques
- Chemistry Spectroscopy Adsorption, diffusion, and thermodynamic properties of materials
- Engineering Biomedical Engineering Nanoplatforms for cancer theranostics
- Materials Science Materials Chemistry Luminescence and Fluorescent Materials
- Engineering Electrical and Electronic Engineering Thin-Film Transistor Technologies
- Veterinary Small Animals Brucella: diagnosis, epidemiology, treatment
- Immunology and Microbiology Immunology Neutrophil, Myeloperoxidase and Oxidative Mechanisms
- Biochemistry, Genetics and Molecular Biology Molecular Biology Protein Interaction Studies and Fluorescence Analysis
- Engineering Mechanical Engineering Advanced Materials and Mechanics
- Engineering Mechanical Engineering Catalysis and Hydrodesulfurization Studies
- Medicine Pharmacology Cholinesterase and Neurodegenerative Diseases
- Materials Science Materials Chemistry Silicon Nanostructures and Photoluminescence
- Engineering Electrical and Electronic Engineering Nanomaterials and Printing Technologies
- Materials Science Polymers and Plastics Transition Metal Oxide Nanomaterials
- Engineering Computational Mechanics Fluid Dynamics and Thin Films
- Materials Science Electronic, Optical and Magnetic Materials Copper Interconnects and Reliability
- Materials Science Polymers and Plastics Polymer composites and self-healing
- Chemistry Inorganic Chemistry Inorganic Fluorides and Related Compounds
- Materials Science Materials Chemistry Carbon and Quantum Dots Applications
- Engineering Biomedical Engineering Membrane-based Ion Separation Techniques
- Earth and Planetary Sciences Atmospheric Science nanoparticles nucleation surface interactions
- Materials Science Materials Chemistry Electronic and Structural Properties of Oxides
- Engineering Aerospace Engineering Icing and De-icing Technologies
- Chemical Engineering Process Chemistry and Technology Carbon dioxide utilization in catalysis
- Engineering Biomedical Engineering Environmental remediation with nanomaterials
- Medicine Pharmacology Synthesis of Organic Compounds
- Biochemistry, Genetics and Molecular Biology Molecular Biology Genomics, phytochemicals, and oxidative stress
- Chemistry Organic Chemistry Click Chemistry and Applications
- Medicine Pharmacology Flavonoids in Medical Research
- Materials Science Materials Chemistry Pickering emulsions and particle stabilization
- Materials Science Materials Chemistry MXene and MAX Phase Materials
- Materials Science Materials Chemistry Covalent Organic Framework Applications
- Energy Renewable Energy, Sustainability and the Environment Iron oxide chemistry and applications
- Agricultural and Biological Sciences Plant Science Silicon Effects in Agriculture
- Environmental Science Environmental Engineering Microbial Applications in Construction Materials
- Engineering Biomedical Engineering Graphene and Nanomaterials Applications
- Medicine Complementary and alternative medicine Natural Compounds in Disease Treatment
- Engineering Computational Mechanics Heat transfer and supercritical fluids
- Biochemistry, Genetics and Molecular Biology Cancer Research Synthesis and Biological Activity
- Biochemistry, Genetics and Molecular Biology Biotechnology Biochemical and biochemical processes
- Engineering Biomedical Engineering Laser-Ablation Synthesis of Nanoparticles
- Agricultural and Biological Sciences Soil Science Humic Substances and Bio-Organic Studies
- Engineering Electrical and Electronic Engineering Electrophoretic Deposition in Materials Science
Topics of this journal
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Similar journals and citation network
The journal's position in the inter-journal citation network.
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Issues and articles
This journal has no issues yet.
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Editorial board
The editorial board of this journal has not been listed yet.
Open peer reviews
Source: manual entry by the editorial team or administration. Peer reviews do not affect the ranking.
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International ranking crosswalk
This is RankScience data arranged in the structure of the international ranking — not official ranking scores.
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For editors
This section is addressed to the journal's editors, not to its readers: advisory suggestions from the journal's topic profile and the wider literature. They do not affect the ranking.
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