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Showing 20 of 418 academic articles

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

Hybrid Organometallic-Inorganic Nanomaterial: Acetyl Ferrocene Schiff base Immobilized on Silica Coated Magnetite Nanoparticles

M. Masteri-Farahani, S. Adegozali, A. Matin • Journal of Nanostructures (2015)

In  this  work,  a  new  hybrid  organometallic-inorganic  hybrid nanomaterial was prepared by immobilization of acetyl ferrocene on the  surface  of magnetite  nanoparticles. Covalent  grafting of silica coated magnetite nanoparticles (SCM...

DOAJ Open Access (DOAJ) DOI: 10.7508/jns.2015.04.003

Broad-Spectrum Antiviral Activity of an Ankyrin Repeat Protein on Viral Assembly against Chimeric NL4-3 Viruses Carrying Gag/PR Derived from Circulating Strains among Northern Thai Patients

Supachai Sakkhachornphop, Sudarat Hadpech, Tanchanok Wisitponchai, Chansunee Panto et al. • Viruses (2018)

Certain proteins have demonstrated proficient human immunodeficiency virus (HIV-1) life cycle disturbance. Recently, the ankyrin repeat protein targeting the HIV-1 capsid, AnkGAG1D4, showed a negative effect on the viral assembly of the HIV...

DOAJ Open Access (DOAJ) DOI: 10.3390/v10110625

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

Anti-Bacterial Microgel Synthesis: Sonochemical Modification of Carbopol for Hygienic Applications

Aghil Asadi, Mohsen Najafi, Hossien Bouhnedi, Mehdi Haji Bagherian • علوم و تکنولوژی پلیمر (2021)

Hypothesis: The volume of studies conducted on biopolymeric materials emphasizes the high-consumption of polymers in biomaterial fields, especially in cosmetics industry which must be resistant to different kinds of microorganisms and bacte...

DOAJ Open Access (DOAJ) DOI: 10.22063/jipst.2021.1779

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

Exploring fibre addition methods and mechanical properties of fibre-reinforced 3D printed concrete: A review

Syed Bustan Fatima Warsi, Biranchi Panda, Pankaj Biswas • Developments in the Built Environment (2023)

3D Concrete Printing (3DCP) is a growing field of sustainable technology that offers an avenue for rapid industrialisation of the construction industry. Over the years, many non-structural elements have been fabricated by 3D printing, thus ...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.dibe.2023.100295

The avifauna of Ramanathapuram, Tamil Nadu along the Southeast coast of India: waterbird assessments and conservation implications across key sanctuaries and Ramsar sites

Hameed Byju, Hegde Maitreyi, Raveendran Natarajan, Reshmi Vijayan et al. • PeerJ (2025)

Background Wetlands, globally, face significant threats from human activities, and waterbirds, as key indicators of wetland health, are essential to maintaining ecological balance. Any long-term conservation measures should prioritize coord...

DOAJ Open Access (DOAJ) DOI: 10.7717/peerj.18899

Investigation the effects of economics – safety performance indices changes on average of lost work days (case study in the project refinery installation)

E ansari, Sh vosoghi • Salāmat-i kār-i Īrān (2016)

Background and aims: According to the International Labour Organization, 17% of fatal accidents occur in construction projects and development Workshop. While this number in Iran according to the Labor Department is 46%. In developing Asian...

DOAJ Open Access (DOAJ)

The Effect of Diversification Strategies on Inventory Performance

Zahra Yousefzadeh, Gholamreza Mansourfar, Farzad Ghayour • مطالعات تجربی حسابداری مالی (2021)

Today, with rapid and sustained changes in business markets, a growing number of companies have turned diversification into new product segments or global markets by shifting their business to increase the importance of long-term financial ...

DOAJ Open Access (DOAJ) DOI: 10.22054/qjma.2021.58687.2227

Climate Change and Crop Yields in Iran and Other OIC Countries

Seyed Hossein Mirjalili, Mahdis Motaghian Fard • International Journal of Business and Development Studies (2019)

Climate change is the main phenomenon that directly affects the world environment, and changes in the environment affect economic sectors differently. The most important impacts of climate change would be on enhancing the average global tem...

DOAJ Open Access (DOAJ) DOI: 10.22111/ijbds.2019.4840

Prioritization of Surface Runoff Management Scenarios Using TOPSIS Method in Different Weighting Conditions (Case Study: Bojnord City)

Raziye Izanloo, Vahedberdi Sheikh • آب و فاضلاب (2019)

In the past decades, urban development and the increase in densely populated urban areas have led to expansion of the impervious surfaces. This resulted in an increase in the volume and peak discharge of runoff. To face the intensified urba...

DOAJ Open Access (DOAJ) DOI: 10.22093/wwj.2017.81822.2381

Weighing and Prioritizing the Eight Principles of Integrated Health, Safety, Environment and Energy Management in Industries Covered by the Ministry of Industry, Mining and Trade

Rasoul Yarahmadi, Hamed Moridi, Ali Asghar Farshad, Fereshteh Taheri • Salāmat-i kār-i Īrān (2020)

Abstract: Aim and Background: Today, with the growth of different dimensions of sustainable development, managers at the organizational and governmental levels have become more and more interested in the components of sustainable developmen...

DOAJ Open Access (DOAJ)

Zoning Erosion Hazard and Sediment Estimation in Cham Gardalan basin (Ilam province) using the Revised Universal Soil Erosion Equation (RUSLE)

Saleh Arekhi, Shahram Barani, Somia Emadaddian • مخاطرات محیط طبیعی (1401)

Soil erosion is one of the environmental problems that pose a threat to natural resources, agriculture and the environment. Quantitative assessment of erosion and sediment using erosion and sediment estimation models is one of the solutions...

DOAJ Open Access (DOAJ) DOI: 10.22111/jneh.2022.39063.1822

Can restaurants achieve customer retention through CSR?

Mohammedsadegh Omidvar, Anisah Deen • Journal of Applied Sciences in Travel and Hospitality (2024)

The objective of this study is to establish a comprehensive framework that combines the four dimensions of Corporate Social Responsibility (CSR) (Economic, Legal, Ethical, and Philanthropic Responsibility) with Environmental Responsibility....

DOAJ Open Access (DOAJ) DOI: 10.31940/jasth.v7i1.1-16

Assessment of knowledge, attitude, and practices regarding the relationship of obesity with diabetes among the general community of Pakistan

Arooj Kiran, Naseer Ali Shah, Shujaul Mulk Khan, Haroon Ahmed et al. • Heliyon (2024)

This study sought to evaluate the influence of knowledge, attitude, and practices assessment on diabetes related to obesity in Pakistani society. Data was collected both through door to door and online survey approaches from 518 participant...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.heliyon.2024.e29081

Sedative-hypnotic drug use and risk of falls and fractures in elderly patients: a cross-sectional study

Mohammad Hossein Imani, Amir Hossein Imani, Amirhossein Saem, Maryam Niksolat • BMC Geriatrics (2025)

Abstract Background Falls are a leading cause of injury, hospitalization, and mortality among older adults. Sedative-hypnotic medications, especially benzodiazepines and Z-drugs, have been implicated as potential contributors to fall risk a...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12877-025-06624-y

Non-traumatic Causes of Brown-sequard Syndrome: A Case Series and Clinical Update With Systematic Review

Vaner Köksal, Mahmoud Osama, Mohammed Ali Alvi • Iranian Journal of Neurosurgery (2021)

Background and Importance: Brown-Sequard Syndrome (BSS) is a rare neurological condition resulting from a hemisection injury to or unilateral compression on the spinal cord. The common causes of BSS that are amenable to be treated surgicall...

DOAJ Open Access (DOAJ)