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149 articles for “Activity Rate”
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Research ArticleOpen accessPhrase in the titleShort Period Spectral Acceleration Zonation of Tehran a Comparison between Slip and Activity Rates Data’sHadi Jarahi, Noushin Naraghiaraghi, Malihe NadalianThis study presents seismic hazard analysis and provides spectral iso acceleration maps based on slip rate (SR) and also activity rate (AR) of the faults. Nowadays modern seismic design of structures is complicated so special attention to the nature of the seismicity in active seismic zones like Tehran is required. Many studies, based on seismic hazard analysis have been done … …Current Research in Geoscience, Vol. 6, Issue 1 · 18 Feb 2016 · 8,264 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMEASUREMENT OF RADON EXHALATION RATE, RADIUM ACTIVITY AND ANNUAL EFFECTIVE DOSE FROM BRICKS AND CEMENT SAMPLES COLLECTED FROM DERA ISMAIL KHANNisar Ahmad, Mohamad Suhaimi Jaafar, Sohail Aziz Khan et al.Radon concentration, exhalation rate, radium activity and annual effective dose have been measured from baked and unbaked bricks and cement samples commonly used as construction material in the dwellings of Dera Ismail Khan City, Pakistan. CR-39 based NRPB radon dosimeters and RAD7 have been used as passive and active devises. The values of radon concentration for baked, unbaked bricks and … …American Journal of Applied Sciences, Vol. 11, Issue 2 · 21 Dec 2013 · 8,276 accessesView PDFCite
Research ArticleOpen accessIn the keywordsStudies of the Terrestrial outdoor Gamma Dose Rate Levels in Ogun-Osun River Basins Development Authority Headquarters, Abeokuta, NigeriaI.C. Okeyode, A.M. OluseyeProblem statement: The natural radioactivity levels in the soils of Ogun-Osun River Basins Development Authority Headquarters, (O-ORBDA HQ) Abeokuta, South-Western part of Nigeria were measured. Approach: (O-ORBDA HQ) is a parastatal of Federal Ministry of Water Resources and Rural Development in Nigeria charged with the responsibility for the development and management of the water resources in its area of coverage. … …Physics International, Vol. 1, Issue 1 · 30 Mar 2010 · 7,917 accessesView PDFCite
Research ArticleOpen accessIn the keywordsImmunomodulatory Activity of Argan Oil (Argania spinosa L)Youcef Necib, Ahlem Bahi, Sakina Zerizer et al.Immunomodulatory activity of Argan oil was evaluated on phagocytic activity by carbon clearance test. Adult Albinos Wistar rats randomly divided into four groups, were the first was served as a control, while animals of treatment group were given Argan oil at dose of: 2.5, 5 and 10 mL kg-1 by gavage respectively 10 days before injected the carbon ink suspension. … …American Journal of Immunology, Vol. 9, Issue 3 · 20 Aug 2013 · 6,932 accessesView PDFCite
Research ArticleOpen accessIn the keywordsBacteriological Examination of Computer Keyboards and Mouse Devices and Their Susceptibility Patterns to DisinfectantsOnochie Charles Chimezie, Anyim Chukwudi, Alo Moses Nnaemeka et al.Computers are ubiquitous and have been shown to be contaminated with potentially pathogenic bacteria in some communities. There is no economical way to test all the keyboards and mouse out there, but there are common-sense ways to prevent bacterial contamination or eliminate it if it exists. In this study, swabs specimens were collected from surfaces of 250 computer keyboards and … …Current Research in Microbiology, Vol. 4, Issue 1 · 19 Jan 2013 · 13,509 accessesView PDFCite
Research ArticleOpen accessIn the abstractBiocontrol of Winter Wheat Root Rot by Rhizosphere Microorganisms in KazakhstanNurlan Kuldybayev, Amankeldy Sadanov, Aigerim Qairatova et al.Root rot remains one of the most significant diseases of winter wheat (Triticum aestivum L.) in Kazakhstan, resulting in substantial yield losses. This study aimed to isolate and identify rhizosphere microorganisms associated with winter wheat and evaluate their antagonistic activity against root rot pathogens in the Almaty region of Kazakhstan. In total, seven bacterial and fungal isolates, belonging to the … …OnLine Journal of Biological Sciences, Vol. 26, Issue 2 · 25 Aug 2026 · 933 accessesView PDFCite
Research ArticleOpen accessIn the abstractFabrication of Polysaccharides from a Fermented Tea and Their Antioxidant and Hypoglycemic ViabilityJun Li, Lingxian Tong, Bing Li et al.The hypoglycemic effects of tea have been extensively studied, with fermented tea demonstrating notable efficacy owing to its distinct processing methods. This study involved the extraction of tea polysaccharides from Wuniuzao Black Tea (WTP) using a water extraction and ethanol precipitation method. WTP-1 and WTP-2 were obtained by separation and purification using DEAE-52 cellulose columns. Antioxidant activity was evaluated utilizing … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 2 · 30 Jul 2026 · 655 accessesView PDFCite
Research ArticleOpen accessIn the abstractCytocompatibility and Antimicrobial Properties of Silver Nanoparticles-Loaded AMPs in the Oral CavityYanli Lv, Weikai ZhangPostoperative infection following oral metal implantation is a key factor that affects the success rate of surgery. This infection is mainly caused by bacterial biofilms. Traditional single antibacterial coatings have limitations, including a narrow antibacterial spectrum and poor cytotoxicity or stability. This study combined silver nanoparticles (AgNPs) and the synthetic antimicrobial peptide GL13K using electrostatic self-assembly technology to create a … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 1 · 24 Apr 2026 · 1,685 accessesView PDFCite
Research ArticleOpen accessIn the abstractUltrasonic Microwave Assisted Extraction, Chemical Characterization and Antioxidant Activity of Polysaccharides from Fig LeavesBaikangzhe Zheng, Yang Miao, Yi Zhou et al.This study employed ultrasonic-microwave-assisted extraction (UMAE) to isolate water-soluble polysaccharides from fig (Ficus carica L.) leaves (FLPs). Polysaccharide yield was used as the primary index to evaluate extraction efficiency. The effects of material-liquid ratio, microwave power, extraction temperature, and extraction time on polysaccharide yield were systematically investigated through single-factor experiments, followed by response surface methodology optimization. Structural characterization and antioxidant … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 4 · 3 Mar 2026 · 1,671 accessesView PDFCite
Research ArticleOpen accessIn the abstractSeparation, Purification and Anti-aging Activity of Tobacco PolysaccharidesMengyue Huang, Jingwu Song, Shuaishuai Chang et al.To separate tobacco polysaccharides and investigate their antioxidant and anti-aging properties, crude tobacco polysaccharides were extracted from raw tobacco using hot water, followed by purification through DEAE-52 cellulose column chromatography. The molecular weight and monosaccharide composition of the isolated polysaccharides were analyzed using HPGPC and HPLC. The antioxidant activities of these tobacco polysaccharides were tested using DPPH, ABTS, hydroxyl radicals … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 1 · 15 Jan 2025 · 5,103 accessesView PDFCite