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An assessment of the mathematical model for estimating of entropy optimized viscous fluid flow towards a rotating cone surface

Yong-Min Li, M. Ijaz Khan, Sohail A. Khan, Sami Ullah Khan et al. • Scientific Reports (2021)

Abstract Entropy optimization in convective viscous fluids flow due to a rotating cone is explored. Heat expression with heat source/sink and dissipation is considered. Irreversibility with binary chemical reaction is also deliberated. Nonl...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-021-89739-7

Optimized two-stage process of Haematococcus sp. for enhanced astaxanthin and essential fatty acids accumulation

Pablo N. Refolio-Samperi, Elena Adaschewski, Dieter Hanelt, Abdelfatah Abomohra • Applied Food Research (2025)

The present study evaluated a two-stage process of Haematococcus sp. to enhance the nutritional value by astaxanthin and fatty acid accumulation. Initial screening of different growth media during the green stage, focusing on enhanced bioma...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.afres.2025.101144

First Report of Ciguatoxins in Two Starfish Species: Ophidiaster ophidianus and Marthasterias glacialis

Marisa Silva, Inés Rodriguez, Aldo Barreiro, Manfred Kaufmann et al. • Toxins (2015)

Ciguatera fish poisoning (CFP) is a syndrome caused by the ingestion of fish contaminated with Ciguatoxins (CTXs). These phycotoxins are produced mainly by dinoflagellates that belong to the genus Gambierdiscus that are transformed in more...

DOAJ Open Access (DOAJ) DOI: 10.3390/toxins7093740

Depth-wise variations in biofouling community development on aquaculture cage nets in the Red Sea

S. Satheesh, A.A.J. Kumar, Mohammed Broom, Eduardo Padilla Yáñez et al. • Egyptian Journal of Aquatic Research (2025)

This study examined the development of biofouling assemblages on cage net panels submerged at different depths in a fish farm in the Red Sea. Experimental rafts equipped with Dyneema fibre nets were submerged at depths of 5, 10 and 15  m. R...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.ejar.2025.09.002

Hg Isotopes and Enhanced Hg Concentration in the Meishan and Guryul Ravine Successions: Proxies for Volcanism Across the Permian-Triassic Boundary

Alcides Nóbrega Sial, Jiubin Chen, Christoph Korte, Manoj Kumar Pandit et al. • Frontiers in Earth Science (2021)

High-resolution organic carbon isotope (δ13C), Hg concentration and Hg isotopes curves are presented for the Permian-Triassic boundary (PTB) sections at Guryul Ravine (India) and Meishan D (China). The total organic carbon (TOC)-normalized ...

DOAJ Open Access (DOAJ) DOI: 10.3389/feart.2021.651224

Survival and growth of fish (Lates calcarifer) under integrated mangrove-aquaculture and open-aquaculture systems

Shanmugaarasu Venkatachalam, Kathiresan Kandasamy, Ilanchelian Krishnamoorthy, Rajendran Narayanasamy • Aquaculture Reports (2018)

The potential use of mangrove swamp for fish farming industry is not clearly known. Therefore, current study was conducted to assess the growth performance of the Asian Seabass, Lates calcarifer cultivated in integrated mangrove-aquaculture...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.aqrep.2017.11.004

Ecological correlates of extinction risk and persistence of direct-developing stream-dwelling frogs in Mesoamerica

Hector Zumbado-Ulate, Kelsey Neam, Adrián García-Rodríguez, Leticia Ochoa-Ochoa et al. • Global Ecology and Conservation (2022)

Understanding the threats to wildlife across space and time is essential for developing effective conservation strategies. In Mesoamerica (i.e., the region that extends from Central Mexico to the most southern point in Panama) at least 40% ...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.gecco.2022.e02197

Biomass burning fuel consumption rates: a field measurement database

T. T. van Leeuwen, G. R. van der Werf, A. A. Hoffmann, R. G. Detmers et al. • Biogeosciences (2014)

Landscape fires show large variability in the amount of biomass or fuel consumed per unit area burned. Fuel consumption (FC) depends on the biomass available to burn and the fraction of the biomass that is actually combusted, and can be com...

DOAJ Open Access (DOAJ) DOI: 10.5194/bg-11-7305-2014

Exposure, hazard, and vulnerability and their contribution to Schistosoma haematobium re-infection in northern Senegal

Andrea J Lund, PhD, Susanne H Sokolow, PhD, Isabel J Jones, PhD, Chelsea L Wood, PhD et al. • The Lancet Planetary Health (2021)

Background: The risk of infectious diseases, including snail-borne schistosomiasis, is determined by three inter-related components: exposure, hazard, and vulnerability. For schistosomiasis, exposure occurs through behaviours involving wate...

DOAJ Open Access (DOAJ) DOI: 10.1016/S2542-5196(21)00094-2

Dynamic coastal pelagic habitat drives rapid changes in growth and condition of juvenile sockeye salmon (Oncorhynchus nerka) during early marine migration

Jessica Garzke, Ian Forster, Sean C. Godwin, Brett T. Johnson et al. • FACETS (2022)

Migrating marine taxa encounter diverse habitats that differ environmentally and in foraging conditions over a range of spatial scales. We examined body (RNA/DNA, length-weight residuals) and nutritional (fatty acid composition) condition o...

DOAJ Open Access (DOAJ) DOI: 10.1139/facets-2022-0068

Response of Phytoplankton Assemblages From Naturally Acidic Coastal Ecosystems to Elevated pCO2

Natalia Osma, Natalia Osma, Laura Latorre-Melín, Bárbara Jacob et al. • Frontiers in Marine Science (2020)

The interplay of coastal oceanographic processes usually results in partial pressures of CO2 (pCO2) higher than expected from the equilibrium with the atmosphere and even higher than those expected by the end of the century. Although this i...

DOAJ Open Access (DOAJ) DOI: 10.3389/fmars.2020.00323

Distribution of zooplankton biomass in the Shatt Al-Arab River and Shatt Al-Basra Canal, Southern Iraq

Afaq Jebir, Shaker Ajeel, Talib Khalaf • Journal of Fauna Biodiversity (2024)

Zooplankton is the important component of aquatic ecosystems. These organisms are important biological indicator of water quality of aquatic ecosystem due to their response to the environmental changes. In this study, we investigated distri...

DOAJ Open Access (DOAJ) DOI: https://doi.org/10.70206/jfb.v1i3.11555

Implementation of a Tunnel System for Scaling-Out High-Quality Cassava Planting Material

Jazmín Vanessa Pérez-Pazos, Deimer Fuentes-Cassiani, Sol-Mara Regino, Jorge-Luis García et al. • Plants (2025)

The production of high-quality cassava planting material is a key strategy for mitigating the spread of pests and diseases. To promote the adoption of such strategies by farmers, it is essential to strengthen local capacities through knowle...

DOAJ Open Access (DOAJ) DOI: 10.3390/plants14192983

Online Classification of Road Roughness Conditions with Vehicle Unsprung Mass Acceleration by Sliding Time Window

Zhongxing Li, Wenhao Yu, Xiaoli Cui • Shock and Vibration (2018)

Suspension control systems are in need for more information of road roughness conditions to improve their performance under different roads. Existing methods of gauging road roughness are limited, and they usually involve visual inspections...

DOAJ Open Access (DOAJ) DOI: 10.1155/2018/5131434

The impact of phase change material on photovoltaic thermal (PVT) systems: A numerical study

Sameh Alsaqoor, Ahmad Alqatamin, Ali Alahmer, Zhang Nan et al. • International Journal of Thermofluids (2023)

This study examines the impact of incorporating phase change material (PCM) in photovoltaic thermal (PVT) systems on their electrical and thermal performance. Although PVT systems have shown effectiveness in converting solar energy into bot...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.ijft.2023.100365

Effects of Vitex trifolia L. leaf extracts and phytoconstituents on cytokine production in human U937 macrophages

Hai-Ning Wee, Soek-Ying Neo, Deepika Singh, Hui-Chuing Yew et al. • BMC Complementary Medicine and Therapies (2020)

Abstract Background Dysregulation of pro-inflammatory cytokines such as tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) form the basis of immune-mediated inflammatory diseases. Vitex trifolia L. is a medicinal plant growing in co...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12906-020-02884-w