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29 results for “Signatures”
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Research ArticleOpen accessIn the abstractComparative Forensic Profiling of Primer-Derived Inorganic Gunshot Residues Using SEM-EDX SpectroscopyAhmed M. Bendary Salem, Aldo Barbaro, Bolaji OladipoGunshot Residue (GSR) analysis presents a significant challenge in forensic science due to the need to detect and identify minute traces of powders and initiating compositions formed during the chemical decomposition and deflagration processes within cartridge cases. This research is a qualitative comparative profiling study, designed to create a reference database of the most characteristic elemental markers for commonly used … …American Journal of Applied Sciences, Vol. 22, Issue 1 · 6 Mar 2026 · 2,726 accessesView PDFCite
Research ArticleOpen accessIn the abstractEpigenetic Regulation of Extracellular Matrix Remodeling in Skin Aging: Mechanisms and InteractionsJiguang Yang, Yusong Shi, Xiaoqing YanSkin aging results from complex interactions between genetic factors, environmental stressors, and epigenetic modifications that regulate extracellular matrix (ECM) remodeling. Accumulation of senescent cells impairs tissue regeneration through mechanisms including telomere shortening, reactive oxygen species accumulation, and ultraviolet (UV) radiation exposure. While epigenetic pathways regulate skin homeostasis, regeneration, and senescence, the specific epigenetic changes occurring during UV exposure, chronological aging, … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 4 · 15 Feb 2026 · 1,458 accessesView PDFCite
Research ArticleOpen accessIn the abstractSystem for Securing Timestamping and Electronic Signing of PDF Documents: Standards, Schematic, and ImplementationMoussa Habiboulaye, Harouna Naroua, Chaibou KadriThis article investigates the standards and principles for implementing electronic signatures in PDF documents, focusing on security and compliance with legal regulations. The current state of digital signatures is examined, highlighting the importance of authenticity, integrity, and non-repudiation. A detailed analysis is provided on the process of generating and verifying electronic signatures using Public Key Infrastructures (PKI) and cryptographic techniques. … …Journal of Computer Science, Vol. 21, Issue 11 · 19 Dec 2025 · 1,864 accessesView PDFCite
Research ArticleOpen accessIn the abstractLithofacies and Depositional Environment from Geophysical Logs of EMK Field, Deepwater Niger Delta, NigeriaEmeka A. Nwagwu, Godwin O. Emujakporue, Sylvester A. Ugwu, R. OghonyaThe lithofacies and environments of deposition of the EMK field, in parts of the deepwater zone of Niger Delta Basin, have been carried out. Geophysical well logs from two deep oil wells were used. Shale and sand were identified in the gamma ray logs. The shale lithology is more dominant than the sand and this was interpreted as the marine … …Current Research in Geoscience, Vol. 9, Issue 1 · 4 Dec 2019 · 13,188 accessesView PDFCite
Research ArticleOpen accessIn the abstractAssessment of Aliphatic Hydrocarbons in Sediments of Shatt Al-Arab River, Southern Iraq, North East Arabian GulfWisam Abdul-Ameer FaridShatt Al-Arab River is one of the important rivers for water supply, industry and irrigation in Basrah City, south of Iraq. It's also supply drinking water to users in the region. Despite the significance of this river, there is a lack of previous studies dealing with petroleum pollution especially for geochemical studies of organic matter in the river sediments using … …American Journal of Environmental Sciences, Vol. 13, Issue 6 · 29 Jan 2018 · 7,458 accessesView PDFCite
Research ArticleOpen accessIn the abstractSequence Stratigraphic Analysis from Well Logs of an X-Field, Niger Delta, NigeriaGodwin Omokenu Emujakporue, Alphonsus Joseph EyoThe sequence stratigraphic analysis of the area was studied using well log information in order to determine the lithostratigraphy, chronostratigraphy, possible reservoir sands, age and depositional environment of the study area for opportunities that will support exploration program. The depositional environment penetrated by the wells interpreted from log signatures gave three major facies association. The blocky and coarsening upward (funnel … …Current Research in Geoscience, Vol. 6, Issue 2 · 11 Jul 2016 · 13,975 accessesView PDFCite
Review ArticleOpen accessIn the abstractState-of-the-Art in Techniques of Text Digital Watermarking: Challenges and LimitationsNasr Addin Ahmed Salem Al-Maweri, Roslizah Ali, Wan Azizun Wan Adnan et al.Data protection from malicious attacks and misuse has become a crucial issue. Various types of data, including images, videos, audio and text documents, have given cause for the development of different methods for their protection. Cryptography, digital signatures and steganography are the most well known technologies used to protect data. During the last decade, digital watermarking technology has also been … …Journal of Computer Science, Vol. 12, Issue 2 · 19 Mar 2016 · 8,526 accessesView PDFCite
Research ArticleOpen accessIn the abstractGenomic Signature of Respiratory Microbes on Human Scalp EpitheliaBhola Nath Paul, Vani Mishra, Jasmeet Kaur Chhabra, Divyani PaulDespite overlap between habitats occupied by diverse Airborne Respiratory Microbes (ARM), the airway epithelium is known for respiratory microbe infections, human scalp epithelium is undocumented. Analogous to airways epithelium, the scalp epithelium is vulnerable to infection by dormant variants of sensitive microbes that underlie many chronic and relapsing diseases, difficult to eradicate by conventional antibiotics and challenged our ability to … …American Journal of Immunology, Vol. 11, Issue 3 · 11 Sep 2015 · 7,074 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetecting an Anomaly Behavior through Enhancing the Mechanism of Packet FilteringMohammed Nazeh Abdul Wahid, Azizol AbdullahThe fundamental task of the Network Traffic Analysis is the ability of capturing and monitoring all the network traffics (incoming and outgoing) for local area network LAN and how the network analyzer is able to analyze and detect errors or any type of suspicious activities such as intruders. The idea of this research is to use flexible packet filtering to … …Journal of Computer Science, Vol. 11, Issue 6 · 1 Sep 2015 · 6,950 accessesView PDFCite
Research ArticleOpen accessIn the abstractCARRY SAVE COMMON MULTIPLICAND MONTGOMERY FOR RSA CRYPTOSYSTEMRupali Verma, Maitreyee Dutta, Renu VigRSA public key cryptosystem provides encryption and digital signatures. With growth of key size an efficient design of RSA in terms of area, frequency, throughput and power consumption is hard to achieve. Also with the different type of attacks possible, a need for secure RSA cryptosystem which is attack resistant has arisen. This study presents RSA design with Montgomery powering … …American Journal of Applied Sciences, Vol. 11, Issue 5 · 8 Mar 2014 · 6,969 accessesView PDFCite