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Scientific research article presenting results of a vertical electrical resistivity survey that delineates geo-electric layers and aquifer characteristics in Agbura, Bayelsa State, within the Niger Delta Basin.
Authors: Ede Tiekuro; Yabefa, B. E.; Emegha, J. O.
Affiliations: Department of Physics, University of Africa, Toru-Orua; Department of Agricultural and Environmental Engineering, Niger Delta University; Department of Physics, Hensard University
Corresponding Email: [email protected]
Study Area: Agbura, Bayelsa State, Niger Delta, Nigeria
Region: Southern Nigeria
Geographical Coordinates of Region: Longitudes 3–9°E; Latitudes 4°31′–5°20′N
Subject Area: Geophysics; Hydrogeology; Groundwater Exploration
Keywords: Resistivity; Aquifer; Geo-electric; Groundwater; Schlumberger
Type of Document: Scientific research article
Methodology: Vertical Electrical Sounding (VES) using Schlumberger electrode configuration
Equipment Used: ABEM Terrameter SAS-1000
Software Used: IP2Win
Geological Context: Niger Delta Basin; Benin Flank; Calabar Flank; Gulf of Guinea
Main Objective: Determination of aquifer depth, thickness, and resistivity distribution for groundwater extraction
Findings: Identification of six geo-electric layers including two sandstone aquifers
Intended Application: Borehole drilling for community water supply
Price: 8 / 10 USD
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Genetic and Cancer Risk Assessment of Shisha Smoking Among Young Adults in Bayelsa State, Nigeria (March 2024–February 2024)
Year: 2024
Region / Location: Bayelsa State, Southern Nigeria
Subject Area: Public Health, Toxicology, Molecular Epidemiology
Document Type: Scientific research study
Study Design: Longitudinal multiple case-control study
Population: 150 male and female subjects aged 18–35 years
Participant Groups: Waterpipe smokers, cigarette smokers, dual users, secondhand smokers, non-smokers
Study Period: March 2024 – February 2024
Biological Samples: Human blood samples
Analytical Methods: Atomic Absorption Spectrophotometry (AAS), Enzyme-Linked Immunosorbent Assay (ELISA)
Statistical Analysis: Statistical Package for Social Sciences (SPSS), significance level p<0.05
Measured Biomarkers: Lead (Pb), Cadmium (Cd), Zinc (Zn), Carcinoembryonic Antigen (CEA), Cancer Antigen-125 (CA-125), Cancer Antigen 15-3 (CA 15-3), 8-Nitroguanine (8-NO₂-Gua), 4-Hydroxynonenal (4-HNE)
Exposure Factors: Shisha smoking, cigarette smoking, secondhand smoke exposure
Health Outcomes Examined: Genotoxicity, carcinogenicity, heavy metal bioaccumulation, oxidative stress
Keywords: Carcinogenicity, Genotoxicity, Heavy metals, Shisha, DNA damage markers
SEC Form 4: Statement of Changes in Beneficial Ownership of Schlumberger Limited Securities (Transactions of 03/03/2023)
Country: United States
Regulatory authority: U.S. Securities and Exchange Commission
Form type: SEC Form 4
Legislative basis: Section 16(a) of the Securities Exchange Act of 1934; Section 30(h) of the Investment Company Act of 1940
Issuer: Schlumberger Limited/NV
Ticker symbol: SLB
Reporting person: Rajeev Sonthalia
Position of reporting person: President, Digital & Integration
Address of reporting person: 5599 San Felipe, 17th Floor, Houston, Texas 77056, United States
Date of earliest transaction: March 3, 2023
Filing type: Individual filing by one reporting person
Security type: Common Stock, $0.01 Par Value Per Share
Transaction codes: A (Acquisition), F (Disposition to satisfy tax withholding)
Shares acquired: 11,400
Shares disposed: 5,358
Price per share (for disposition): $55.17
Beneficial ownership after transactions: 36,270 shares (direct)
Related equity compensation: Performance Share Units (PSUs) granted January 15, 2020
Vesting basis: Three-year company performance relative to selected competitors
Certification date of performance: January 2023
Form signature: Samantha Blons, Attorney-in-Fact
Form signing date: March 7, 2023
Topics: Agbura Bayelsa Schlumberger