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Spectrum sensing and resource allocation for 5G heterogeneous cloud radio access networks

Hossein Safi, Ali Mohammad Montazeri, Javane Rostampoor, Saeedeh Parsaeefard • IET Communications (2022)

Abstract In this paper, the problem of opportunistic spectrum sharing for the next generation of wireless systems empowered by the cloud radio access network (C‐RAN) is studied. More precisely, low‐priority users employ cooperative spectrum...

DOAJ Open Access (DOAJ) DOI: 10.1049/cmu2.12356

Application of Particle Size Distribution Engineering and Nano-technology to Cement Recipes for some Iranian Offshore Oilfields

Yaser Pourmazaheri, Hamid Soltanian • Journal of Petroleum Science and Technology (2015)

The design of cement slurry for horizontal wellbores is challenging as it must present very high quality cement slurry properties e.g. zero free water, less than 50 cc API fluid loss value, appropriate rheology and yield point for effective...

DOAJ Open Access (DOAJ) DOI: 10.22078/jpst.2015.504

Optimization of cationic nanoparticles stabilized by poloxamer 188: A potential approach for improving the biological activity of Aloe perryi

Tahany Saleh Aldayel, Mohamed M. Badran, Abdullah H. Alomrani, Nora A. AlFaris et al. • Heliyon (2023)

Aloe perryi (AP) has gained considerable interest as a medicinal herb in various biological applications due to its rich phytochemical composition. However, the therapeutic benefits of AP could be potentiated by utilizing nanotechnology. Mo...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.heliyon.2023.e22691

Impact of micromechanical properties of organic matter on the micro-mesopore structures of the over-mature shale in the Niutitang Formation

Hang Lei, Wenjibin Sun, Yujun Zuo, Zhonghu Wu et al. • Scientific Reports (2025)

Abstract The micromechanical properties of organic matter (OM) and organic pore structures in the over-mature stage are crucial for determining shale reservoir quality and assessing shale gas resource potential. However, there is still deba...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-025-89164-0

Evaluation of a new vine trellis system called Ramé / Evaluación de un nuevo sistema de conducción de la Vid denominado Ramé

Valeria Bergas, José Rodríguez, Ignacio Galarraga, Hernán Vila et al. • BIO Web of Conferences (2016)

You should leave 10 mm of space above the abstract and 15 mm after the abstract. The heading Abstract should be typed in bold 9-point Arial. The body of the abstract should be typed in normal 9-point Times in a single paragraph, immediately...

DOAJ Open Access (DOAJ) DOI: 10.1051/bioconf/20160701031

Purification of Murine Gammaherpesvirus 68 With Use of Differential Centrifugation

Hodoši R., Nováková E., Šupolíková M. • European Pharmaceutical Journal (2021)

The method for separation of viral particles in a concentrated form from the environment is called virus purification. Viruses are required to be purified for a range of studies in which it is necessary to distinguish the properties or stru...

DOAJ Open Access (DOAJ) DOI: 10.2478/afpuc-2021-0009

Associations of time spent on different types of digital media with self-rated general and mental health in Swedish adolescents

Helena Frielingsdorf, Victoria Fomichov, Ingrid Rystedt, Sofia Lindstrand et al. • Scientific Reports (2025)

Abstract Although previous studies have suggested an association between digital media use and health, detailed knowledge about how different types of digital media impact adolescent health is limited. This cross-sectional population-based ...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-024-83951-x

Incubation of semen with human follicular fluid improves the antioxidant status and quality of spermatozoa after freezing–thawing

Monireh Mahmoodi, Elham Shojafar, Maryam Dastjani-Farahani • Reproduction and Fertility (2025)

The sperm freezing–thawing procedure is the most commonly used technique in clinics to preserve male fertility before any pathological destruction of the testis. Therefore, most studies are currently focused on optimizing this method to ach...

DOAJ Open Access (DOAJ) DOI: 10.1530/RAF-24-0056

Evaluasi Kualitas Aplikasi Web Pemantau Menggunakan Model Pengujian Perangkat Lunak ISO/IEC 9126

Condro Kartiko • Jurnal Nasional Teknik Elektro dan Teknologi Informasi (2019)

The rapid growth of the world of information technology has an impact on the spread of the amount of software. Software maintenance is needed to support the quality of software. Software quality can be measured in terms of product and proce...

DOAJ Open Access (DOAJ) DOI: 10.22146/jnteti.v8i1.485

A Systematic Meta-Synthesis of Factors Influencing University Student Happiness

Seyedkamal Vaezi, Mohammad Pedrami • پژوهشنامه روانشناسی مثبت (2025)

This study aimed to systematically synthesize and prioritize the main factors influencing university students’ happiness and well-being. Employing a rigorous qualitative methodology based on interpretive meta-synthesis, the research compreh...

DOAJ Open Access (DOAJ) DOI: 10.22108/ppls.2026.142544.2560

A cluster randomised school-based lifestyle intervention programme for the prevention of childhood obesity and related early cardiovascular disease (JuvenTUM 3)

Haller Bernhard, Lammel Christoph, Hanssen Henner, Siegrist Monika et al. • BMC Public Health (2011)

Abstract Background Childhood obesity is not only associated with adult obesity but also with increased risk of adult onset of type 2 diabetes and subsequent coronary heart disease. The potential effects of school-based health intervention ...

DOAJ Open Access (DOAJ) DOI: 10.1186/1471-2458-11-258

A study on high-shear and low-pressure grinding with body-armour-like abrasive tool (BAAT) for Inconel 718 superalloys

Yebing Tian, Chengjin Tian, Sohini Chowdhury, Jinguo Han et al. • Journal of Materials Research and Technology (2023)

A novel body-armour-like abrasive tool (BAAT) was developed for the high-shear and low-pressure grinding of super alloys with an aim to reduce the ratio of normal force to tangential force. A composite process model was developed based on f...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.jmrt.2023.04.205

Forecasting Warping Deformation Using Multivariate Thermal Time Series and K-Nearest Neighbors in Fused Deposition Modeling

Donghwan Song, Adrian Matias Chung Baek, Jageon Koo, Moise Busogi et al. • Applied Sciences (2020)

Over the past decades, additive manufacturing has rapidly advanced due to its advantages in enabling diverse material usage and complex design production. Nevertheless, the technology has limitations in terms of quality, as printed products...

DOAJ Open Access (DOAJ) DOI: 10.3390/app10248951

Reefs under Siege—the Rise, Putative Drivers, and Consequences of Benthic Cyanobacterial Mats

Amanda K. Ford, Amanda K. Ford, Sonia Bejarano, Maggy M. Nugues et al. • Frontiers in Marine Science (2018)

Benthic cyanobacteria have commonly been a small but integral component of coral reef ecosystems, fulfilling the critical function of introducing bioavailable nitrogen to an inherently oligotrophic environment. Though surveys may have previ...

DOAJ Open Access (DOAJ) DOI: 10.3389/fmars.2018.00018

Role of hypothetical protein PA1-LRP in antibacterial activity of endolysin from a new Pantoea phage PA1

Ye Tian, Xinyan Xu, Munazza Ijaz, Ying Shen et al. • Frontiers in Microbiology (2024)

IntroductionPantoea ananatis has emerged as a significant plant pathogen affecting various crops worldwide, causing substantial economic losses. Bacteriophages and their endolysins offer promising alternatives for controlling bacterial infe...

DOAJ Open Access (DOAJ) DOI: 10.3389/fmicb.2024.1463192

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

Ectoparasites Identification on Spiny Lobster (Panulirus homarus) Cultivated Controlled Tanks and Floating Net Cages (KJA) at the Lampung Marine Aquaculture Center (BBPBL) : Identifikasi Ektoparasit Lobster Pasir (Panulirus homarus) pada Bak Terkendali dan Keramba Jaring Apung (KJA) di Balai Besar Perikanan Budidaya Laut (BBPBL) Lampung

Izza Fatimatuzzahra, Khaerunissa Anbar Istiadi, Andrian Garbono • Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) (2025)

Ectoparasites can infect aquatic biota, including spiny lobster (Panulirus homarus), which causes failure of spiny lobster cultivation, such as death, bacterial infection, and decreased cultivation quality. One of the failures of spiny lobs...

DOAJ Open Access (DOAJ) DOI: 10.23960/jbekh.v12i1.411

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

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