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EDITORIAL DEEP DIVES

In-depth research analyses

Source-verified editorial analyses, ordered by latest publication date

1,037 analyses
Infectious Disease Surveillance72IMPACT SIGNAL
National surveillance evidence

Japan's invasive meningococcal cases fell to one during COVID-19, then rebounded to 68 in 2025

Japan's national surveillance from January 2017 to October 2025 identified 288 IMD cases across pre-pandemic, pandemic and reopening phases. Cases fell from 48 in 2019 to one in 2021, then rose to 66 in 2024 and 68 by October 2025. Older adults consistently accounted for the most cases, adolescents clearly rebounded, and Tokyo rose more than Osaka/Kansai. No Expo-specific surge appeared. Cases and inbound travel had Spearman rho 1.000, although most infections were domestically acquired.

Thai researchersY. Chen; Hirotake Mori; Rapeephan R. Maude
Biomedical Additive Manufacturing72IMPACT SIGNAL
Laboratory mechanical prototype

RaLak titanium lattices tune stiffness and energy absorption to better mimic bone

Solid metallic implants are much stiffer than bone and can cause stress shielding. A Ti6Al4V bio-inspired lattice called RaLak was laser-powder-bed-fused at 20% and 30% relative density and 2-4-mm cells and compared with gyroid and diamond TPMS. RaLak improved the stiffness-energy-absorption balance; at 30% density and 4-mm cells it absorbed about 50% more energy than gyroid. Its hybrid architecture promoted uniform stress and progressive deformation, and modified Gibson-Ashby models linked geometry to response.

Thai researchersChinnapat Panwisawas
AI and Sustainable Tourism72IMPACT SIGNAL
Behavioral experimental evidence

Two experiments suggest GenAI can reduce overload in sustainable travel choices

Two experiments covered trip planning and on-site shopping to test whether GenAI helps users navigate abundant eco-certified options. More advanced tools reduced perceived information overload and improved decision-making. Greater trust related to well-being and intention to use GenAI, while lower perceived decision risk also related to intention. The authors report more eco-responsible choices, but the abstract does not clarify whether behavior was consequential or self-reported.

Thai researchersLars Meyer-Waarden
Geriatric Dentistry72IMPACT SIGNAL
Systematic review and meta-analysis

Implant-supported prostheses produced stronger functional gains for older adults with tooth loss

From 7,654 records, 24 studies with 1,711 adults aged at least 65 and prosthesis use for six months were included. Fourteen studies assessed mastication and bite force. Complete dentures gave modest gains, while implant overdentures produced higher performance and bite force with more consistent long-term improvement. Across 18 PROM studies, implant overdentures and fixed full-arch prostheses produced the largest oral-health quality-of-life gains; complete and removable partial dentures had smaller positive changes. Subjective chewing improved over 6-12 months with high heterogeneity.

Thai researchersFrauke Müller
Climate and Health72IMPACT SIGNAL
Regional scoping-review evidence

Heat raises health risks across ASEAN, while heatwave definitions and geographic evidence remain fragmented

This scoping review included 76 Southeast Asian studies published since 2000: 28 mortality, 38 morbidity and 10 effect-modification studies. Minimum-risk temperatures and thresholds varied widely by location and outcome. Reported relative risks ranged from 1.02 for all-cause admission in Vietnam to 4.21 for dengue in Laos, but these outcomes are not directly comparable. Relationships were often nonlinear, evidence for heat-air pollution synergy was mixed, immediate effects were stronger for NCDs, and some dengue studies reported long lags.

Thai researchersHtoo Wai Aung; Wissanupong Kliengchuay; Sarima Niampradit; Paweena Aendo; Thant Sin Aye; Siriphat Intrakun; Dumrongkiet Arthan; Khuanchai Koompapong; Kraichat Tantrakarnapa
Biopolymer Films and Packaging72IMPACT SIGNAL
Laboratory materials evidence

Calcium alginate powder increased thermo-compressed sodium-alginate film strength by 208%

Seaweed-derived alginate is biodegradable and biocompatible, but sodium-alginate films are mechanically weak. With glycerol plasticizer, calcium-alginate powder at 2.5-20 wt% was added before thermo-compression. SEM/EDS indicated good interfaces and moisture declined with CA content. At 20 wt%, tensile strength reached 11.7 MPa and modulus 234.7 MPa, increases of 208% and 907% over unfilled SA, showing effective reinforcement by an ionically distinct alginate filler.

Thai researchersPrasong Srihanam; Wilaiwan Simchuer; Yodthong Baimark
Biomass Fuels72IMPACT SIGNAL
Pilot-scale energy evidence

Pilot vibrating torrefaction upgraded Thai rubberwood and corn wastes to 22.4-MJ/kg fuel pellets

A pilot vibrating torrefaction system processed rubberwood- and corn-waste pellets at 220-300°C for 16 or 30 minutes. Greater severity increased HHV to 22.4 MJ/kg, about 20% above raw pellets, and improved grindability and moisture resistance, while mass and energy yields declined. Specific electricity use was 624-1,161 kWh per product tonne and preliminary cost THB 8,000-11,000/t including capital, feedstock and electricity, demonstrating both technical feasibility and economic tradeoffs.

Thai researchersSuneerat Fukuda; Jaggapan Sanduang; Supachita Krerkkaiwan
Environmental and Energy Economics72IMPACT SIGNAL
Long-run econometric evidence

India's 1969-2023 data link nuclear energy and human capital with lower ecological pressure

The study integrates CO2 emissions, ecological footprint and load-capacity factor to represent emissions, resource demand and regenerative capacity in India. Annual 1969-2023 data were analyzed with ARDL bounds testing and robustness estimators including FMOLS, DOLS and canonical cointegration regression. Results supported Environmental Kuznets and Load Capacity curves. Nuclear energy and human capital were associated with improved long-run environmental performance, while economic growth and natural-gas consumption were associated with greater pressure.

Thai researchersBablu Kumar Dhar
Functional Foods and Microbiome72IMPACT SIGNAL
Mechanisms and applications review

Postbiotics may be more stable than probiotics, but health evidence must remain product specific

Postbiotics are preparations of inanimate microorganisms and/or components conferring a health benefit, while paraprobiotics often refer to inactivated cells. The review covers cell-wall fragments, metabolites and signaling molecules, proposed barrier, immune and microbiome mechanisms, and human and animal nutrition applications. Stability, storage and risks associated with live organisms may improve over probiotics, but heterogeneous strains and processing prevent class-wide efficacy claims.

Thai researchersMuhammad Waqar
Waste to Energy72IMPACT SIGNAL
Laboratory pyrolysis evidence

Pyrolysis converted waste-cooking-oil sludge into fuel fractions and biochar

Sludge from waste-cooking-oil pretreatment for biodiesel is organic-rich but low value. Pyrolysis separated it into liquid, gas and carbon-rich solid. Light, middle and heavy liquid cuts had higher heating values of 44.3-44.6 MJ/kg, while gas reached a 53.6 MJ/Nm3 Wobbe Index suitable for thermal applications. Higher temperature shifted yield from liquid to gas. Biochar retained energy and carbon-storage potential, but salinity and alkali constrain land use.

Thai researchersNathawat Unsomsri; Songkran Wiriyasart; Pachara Koedthong; Natcha Yongying; Paranee Sriromreun; Sommas Kaewluan
Functional Beverages72IMPACT SIGNAL
Food process and formulation evidence

Pectinase optimization prioritized bioactive recovery before developing a three-fruit beverage

Date juice was extracted with 0.1% pectinase at 50-80°C for 60-240 minutes. Fifty degrees for 60 minutes was selected for functional quality, yielding 326.33 mg GAE/100 mL phenolics, 1.08 mg beta-carotene equivalents/100 mL carotenoids and strong DPPH/FRAP activity, although maximum 81.25% yield occurred at 60°C for 240 minutes. Six simplex-lattice beverage blends were developed; the 70% date and 15% each of two companion fruits scored highest at 6.50. All blends improved measured bioactives versus control with stable pH and acidity.

Thai researchersSaeid Jafari; Pitchaya Tuntiteeraboon; Isaya Kijpatanasilp; Sochannet Chheng; Kitipong Assatarakul
Biobased Energy Materials73IMPACT SIGNAL
Laboratory electrolyte evidence

Alginate-lignin raised ionic conductivity in a biobased gel electrolyte by nearly fourteenfold

A green gel polymer electrolyte combining sodium alginate, lignin and Na2SO4 was compositionally optimized. Conductivity reached 2.91×10^-4 S/cm versus 2.09×10^-5 S/cm in the baseline, about a 13.9-fold increase. Dielectric and electric-modulus analysis indicated shorter relaxation and improved carrier dynamics, ionic transference reached 0.98, and the stability window reached 2.85 V. Excess salt caused ion association and reduced transport.

Thai researchersEverton Granemann Souza
BIBLIOGRAPHIC RESEARCH WATCHLIST

Bibliographic research records

Thailand-affiliated bibliographic records. These are not full analyses; they are ordered by Impact Signal and should be verified against the original source.

3,510records
3,510 records
79IMPACT SIGNAL
Multidisciplinary

Tonal Erosion in a Minority Ethnic Language and Its Implications for Language Education: Evidence from Intergenerational Tonal Change in Phuan, Northeastern Thailand

Journal of Education and Training Studies

Thailand-affiliated authors
Thanaphan Toophom
Institutions
Nakhon Phanom University
79IMPACT SIGNAL
Multidisciplinary

Generative AI as an IELTS Tutor: The effects of AI-generated feedback on EFL students’ writing

Language Education & Assessment

Thailand-affiliated authors
Napat Jitpaisarnwattana
Institutions
Silpakorn University
79IMPACT SIGNAL
Multidisciplinary

การศกษาเปรยบเทยบสำนวนจนทมคำวา “不” กบสำนวนไทย ทมคำวา “ไม” ปรากฏในสำนวน

Interdisciplinary Academic and Research Journal

Thailand-affiliated authors
พีรวัส วรมนธนาเกียรติ
Institutions
Bangkok University
79IMPACT SIGNAL
Environmental Engineering

GRB 250424A: A Case Study of Energy Injection with Multiwavelength Observations

The Astrophysical Journal

Thailand-affiliated authors
Manasanun Tanasan · K. Noysena · Krittapas Chanchaiworawit · Samaporn Tinyanont
Institutions
National Astronomical Research Institute of Thailand
79IMPACT SIGNAL
Multidisciplinary

Resistance Patterns and Associated Risk Factors of Scabies and Tinea among Outpatients in a Tertiary Care Hospital of Chattogram

IAHS Medical Journal

Thailand-affiliated authors
Shalahuddin Ahmed
Institutions
Institute of Dermatology
79IMPACT SIGNAL
Multidisciplinary

Pooling Catastrophic Mortality Risk in Smallholder Livestock Systems: An ASEAN-5 Sovereign Risk Pool and Catastrophe Bond

Risks

Thailand-affiliated authors
Kiatanantha Lounkaew
Institutions
Thammasat University
79IMPACT SIGNAL
Multidisciplinary

Adoption of Mobile Banking Applications: Effects of Short-Term Thinking Mindset and Serial Mediation of Perceived Risk, Usefulness, and Trust

Contemporary Management Research

Thailand-affiliated authors
Boonlert Watjatrakul
Institutions
King Mongkut's Institute of Technology Ladkrabang
79IMPACT SIGNAL
Multidisciplinary

Geospatial Inequities and Community-Based Behavioral Interventions for Type 2 Diabetes Control in Health Region 10, Thailand

International Journal of Geoinformatics

Thailand-affiliated authors
K. Laosupap
Institutions
Ubon Ratchathani University
78IMPACT SIGNAL
Clinical Medicine

Fermented Houttuynia cordata Thunb. Attenuates Dextran Sulfate Sodium-Induced Colitis in Mice, Associated with Preserved Gut Barrier Integrity and Reduced Colonic TLR4 Expression

Antioxidants

Thailand-affiliated authors
Napapan Kangwan · Wittaya Chaiwangyen · Sarawut Kongkarnka · Pilaiporn Thippraphan · Amnart Onsa-Ard · Piyawan Nuntaboon · Thanawat Pattananandecha · Chalermpong Saenjum
Institutions
University of Phayao · Chiang Mai University
78IMPACT SIGNAL
Clinical Medicine

Alu hypomethylation in ischemic stroke: Associations with selected clinical characteristics

PLoS ONE

Thailand-affiliated authors
Doungkamol Siri-Archawawat · Sirithip Chuaijit · Apiwat Mutirangura · Jirapan Thongsroy
Institutions
Walailak University · Chulalongkorn University
78IMPACT SIGNAL
Multidisciplinary

Assessing digital transformation maturity in manufacturing: a six-dimensional framework applied to operating model evaluation

International Journal of Productivity and Performance Management

Thailand-affiliated authors
Arnauld Schaller · Ronald Vatananan-Thesenvitz
Institutions
Bangkok University
78IMPACT SIGNAL
Multidisciplinary

Potential cost saving associated with smoking prevention and cessation: an incidence-based cost-of-illness analysis in Thailand

Tobacco Control

Thailand-affiliated authors
Chaisiri Luangsinsiri · Montarat Thavorncharoensap
Institutions
Srinakharinwirot University · Mahidol University
78IMPACT SIGNAL
Multidisciplinary

The Relationship Between L2 Motivational Self System and Willingness to Communicate: A Three-Level Meta-Analysis

Language Teaching Research

Thailand-affiliated authors
Hao Zhang · Sumalee Chinokul
Institutions
Silpakorn University · Chulalongkorn University
78IMPACT SIGNAL
Clinical Medicine

Titanium Dioxide Nanoparticles Enhance Radiation Response in Triple-Negative Breast Cancer Cells Under Megavoltage X-Ray Irradiation

Applied Nano

Thailand-affiliated authors
Ausanai Prapan · Peerawit Soonthornchookiat · Pimvaree Aissara · Chanyatip Suwannasing · Pitchayuth Srisai · Orawan Kumcharoenkun · Saranya Chaiwaree · Kanchana Usuwanthim · Hans Bäumler
Institutions
Naresuan University · Chiang Mai University · Payap University
78IMPACT SIGNAL
Clinical Medicine

Pharmacokinetics of Doramectin After Subcutaneous and Intramuscular Administrations in Siamese Freshwater Crocodiles (Crocodylus siamensis)

Animals

Thailand-affiliated authors
Arin Leksansern · Saranya Poapolathep · Narumol Klangkaew · Napasorn Phaochoosak · Kraisiri Khidkhan · Amnart Poapolathep
Institutions
Kasetsart University
78IMPACT SIGNAL
Environmental Engineering

Detection and Characterization of Microplastics and Other Anthropogenic Particles in Seafood from Southern Thailand Markets

Microplastics

Thailand-affiliated authors
Jirakrit Saetang · Soottawat Benjakul · Pornpot Nuthong · Avtar Kaur Singh
Institutions
Prince of Songkla University
78IMPACT SIGNAL
Clinical Medicine

The Prevalence and Impact of Nonadherence to Analgesic Medications in Chronic Pain Patients: A Cross-sectional Study

Journal of Health Science and Medical Research

Thailand-affiliated authors
Songphon Pratoom · Thanawut Jitsinthunun · Phutsadee Pudchakan · Suratsawadee Wangnamthip · Nantthasorn Zinboonyahgoon
Institutions
Siriraj Hospital · Mahidol University
78IMPACT SIGNAL
Clinical Medicine

The Blastocystis Biobank: a curated, multi-host biological resource of cultures, nucleic acids, metabolites, and stool-derived aliquots with a controlled-access virtual catalogue for global research

Open Research Europe

Thailand-affiliated authors
Vasana Jinatham
Institutions
Mae Fah Luang University
78IMPACT SIGNAL
Multidisciplinary

Employee engagement in SMEs: a bibliometric review and research agenda (1989–2024)

Employee Relations

Thailand-affiliated authors
Vuthiporn Chinchanachokchai · Parisa Rungruang
Institutions
Mahidol University
78IMPACT SIGNAL
Clinical Medicine

Ventilatory Management in Neurocritical Versus Non-Neurocritical Care Patients: A Pooled Analysis From the PRIME Database

Critical Care Medicine

Thailand-affiliated authors
Luigi Pisani · Marcus Josephus Schultz
Institutions
Mahidol Oxford Tropical Medicine Research Unit
78IMPACT SIGNAL
Clinical Medicine

Microfungi associated with Azadirachta (Meliaceae, Sapindales): New species, new records, and a global checklist

MycoKeys

Thailand-affiliated authors
Ashani D. Madagammana · Chitrabhanu Sharma Bhunjun · Chayanard Phukhamsakda · Kevin D. Hyde
Institutions
Mae Fah Luang University · Mushroom Research Foundation
78IMPACT SIGNAL
Multidisciplinary

Industrial transformation and pollution governance in the digital era: environmental externalities from Thailand’s Eastern Economic Corridor

International Journal of Social Economics

Thailand-affiliated authors
Pichlanda Sonthiwilon · Nathapool Kamsanit
Institutions
King Mongkut's University of Technology North Bangkok · National Institute of Development Administration
78IMPACT SIGNAL
Multidisciplinary

Digital Development and Employment Transformation: Evidence from Regional Heterogeneity in China

International Economic Journal

Thailand-affiliated authors
Qi Xiao · Juthathip Jongwanich
Institutions
Thammasat University
EDITORIAL STANDARD

How we select research

We use OpenAlex, Crossref, PubMed, DOI records, and publisher pages, then verify Thai researcher participation before publication.

  1. 01Discover new researchFocus on the latest 90 days and verifiable Thai affiliations
  2. 02Assess signalsReview recency, quality, collaboration, and societal relevance
  3. 03Read with careReport findings with limitations and avoid claims beyond the evidence
  4. 04Open original sourcesEvery item includes a DOI, review date, and verification link