Residue Characteristics and Consumer Safety Risk Assessment of Propiconazole in Leafy Vegetables

Lawal Abdulkareem,Sang-Hyeob Lee,Se-Yeon Kwak,Jae-won Choi,Ji-Eun Oh,Tae-Hwa Kim,Kee-Sung Kyung,Jang-Eok Kim 한국농약과학회 2022 한국농약과학회 학술발표대회 논문집 Vol.2022 No.11

Demographic Trends in Paddle Lead Spinal Cord Stimulator Placement: Private Insurance and Medicare Beneficiaries

Lawal Labaran,Joshua Bell,Varun Puvanesarajah,Nikhil Jain,Jomar N. Aryee,Micheal Raad,Amit Jain,Jonathan Carmouche,Hamid Hassanzadeh 대한척추신경외과학회 2020 Neurospine Vol.17 No.2

Objective: Although spinal cord stimulators (SCS) continue to gain acceptance as a viable nonpharmacologic option for the treatment of chronic back pain, recent trends are not well established. The aim of this study was to evaluate recent overall demographic and regional trends in paddle lead SCS placement and to determine if differences in trends exist between private-payer and Medicare beneficiaries. Methods: A retrospective review of Medicare and private-payer insurance records from 2007–2014 was performed to identify patients who underwent a primary paddle lead SCS placement via a laminectomy (CPT-63655). Each study cohort was queried to determine the annual rate of SCS placements and demographic characteristics. Yearly SCS implanta�tion rates within the study cohorts were adjusted per 100,000 beneficiaries. A chi-square analysis was used to compare changes in annual rates. Results: A total of 31,352 Medicare and 2,935 private-payer patients were identified from 2007 to 2014. Paddle lead SCS placements ranged from 5.9 to 17.5 (p<0.001), 1.9 to 5.9 (p<0.001), and 5.2 to 14.5 (p<0.001) placements per 100,000 Medicare, private-payer, and overall beneficiaries respectively from 2007 to 2014. SCS placements peaked in 2013 with 19.6, 7.1, and 16.8 placements per 100,000 Medicare, private-payer, and overall patients. Conclusion: There was an overall increase in the annual rate of SCS placements from 2007 to 2014. Paddle lead SCS placements peaked in 2013 for Medicare, private-payer, and over�all beneficiaries. The highest incidence of implantation was in the Southern region of the United States and among females. Yearly adjusted rates of SCSs were higher among Medi�care patients at all time points.

Opioids and Spinal Cord Stimulators: Pre- and Postoperative Opioid Use Patterns and Predictors of Prolonged Postoperative Opioid Use

Lawal Labaran,Jomar N.A. Aryee,Joshua Bell,Nikhil Jain,Varun Puvanesarajah,Michael Raad,Amit Jain,Jonathan Carmouche,Hamid Hassanzadeh 대한척추신경외과학회 2020 Neurospine Vol.17 No.1

Objective: The aim of the study was to compare trends and differences in preoperative and prolonged postoperative opioid use following spinal cord stimulator (SCS) implantation and to determine factors associated with prolonged postoperative opioid use. Methods: A database of private-payer insurance records was queried to identify patients who underwent a primary paddle lead SCS placement via a laminectomy (CPT-C3655) from 2008–2015. Our resulting cohort was stratified into those with prolonged postoperative opioid use, opioid use between 3- and 6-month postoperation, and those without. Multivariate logistic regression was used to determine the effect preoperative opioid use and other factors of interest had on prolonged postoperative opioid use. Subgroup analysis was performed on preoperative opioid users to further quantify the effect of differing magnitudes of preoperative opioid use. Results: A total of 2,374 patients who underwent SCS placement were identified. Of all patients, 1,890 patients (79.6%) were identified as having prolonged narcotic use. Annual rates of preoperative (p=0.023) and prolonged postoperative narcotic use (p<0.001) decreased over the study period. Significant independent predictors of prolonged postoperative opioid use were age <65 years (odds ratio [OR], 1.52; p=0.004), male sex (OR, 1.33; p=0.037), preoperative anxiolytic (OR, 1.55; p=0.004) and muscle relaxant (OR, 1.42; p=0.033), and narcotic use (OR, 15.04; p<0.001). Increased number of preoperative narcotic prescriptions correlated with increased odds of prolonged postoperative use. Conclusion: Patients with greater number of preoperative opioid prescriptions may not attain the same benefit from SCSs as patients with less opioid use. The most significant predictor of prolonged narcotic use was preoperative opioid use.

Design and Implementation of EPS Defect Monitoring System

Alabe Lawal Wale,Mayoura Sor,Kimleang Kea,Youngsun Han(한영선),Myungsoo Jin(진명수),Hyoseon Seo(서효선),TaeIn Park(박태인),Young-Jae Min(민영재) 대한전자공학회 2022 대한전자공학회 학술대회 Vol.2022 No.6

Party Primaries and Good Governance in Nigeria: A Critical Analysis of All Progressive Congress (APC) Gubernatorial Primaries in Ondo and Ekiti States

Tolu Lawal 한국외국어대학교 아프리카연구소 2022 Asian Journal of African Studies Vol.- No.52

In a democracy, everyone has the right to take part in the government of their country and have an equal opportunity to become a candidate for election. But this must be done according to the rules of engagement. Interested individuals are expected to join a political party for this purpose. Parties select their candidates for elective position through competitive primary election. The election is expected to produce party flag bearers for general elections .Essentially; the quality of the flag bearer determines to an extent the success of the party in general elections and its general performance while in government. Based on this, it is therefore expected that the conduct of primary election be open, democratic, participatory, transparent and credible in nature to ensure the emergency of a credible, able and acceptable candidate for general election capable of not only winning a free and fair election but also ensuring good governance while in power. However, the issue of primary election in Nigeria has become a do or die affairs particularly in the ruling All Progressive Congress (APC) party, where the quality of the contestants are down played for highest bidders and or anointed candidates of the ruling party caucus members. This common but unfortunate and undemocratic practice tends to have probable consequences on democratic sustenance and good governance. To this end, the study attempted a critical analysis of the conduct of gubernatorial primary elections of APC in Ondo and Ekiti State and their attendant implication on democracy and good governance. The study employed both primary and secondary methods to source its information. The study observed that the primary elections were elite driven, undemocratic, compromised, monitised and capable of negating the ideals of good governance. The study concluded that primary election be demonitised and conducted within the ambit of democratic ethos.

Residue Monitoring and Dietary Risk Evaluation of Fungicide Propiconazole in Leafy Vegetables under Greenhouse Conditions

Abdulkareem Lawal,오지은,곽세연,이상협,최재원,SARKER ANIRUDDHA,경기성,김태화,김장억 한국환경농학회 2023 한국환경농학회지 Vol.42 No.3

Residue monitoring of propiconazole (PCZ) in cabbage, shallot, and spinach was conducted under multi-trial greenhouse conditions. This study aimed to understand the fate of the applied fungicide in these vegetables. Furthermore, the associated health risk of PCZ in leafy vegetables was assessed through dietary risk assessment. Commercially available PCZ (22% suspension concentrate) was administered thrice according to the OECD fungicide application interval guideline. The plant samples were extracted using a slightly modified QuEChERS technique and analyzed using gas chromatography-tandem mass spectrometry. The average PCZ recovery was between 84.5% and 117.6%, with a <5% coefficient of variance. The dissipation of PCZ residue in cabbage, shallot, and spinach after 14 days was 96%, 90%, and 99%, respectively, with half-lives of <5 days. Meanwhile, dietary risk assessments of PCZ residues in the studied vegetables using the risk quotient (RQ) were significant < 100 (RQ < 100). Thus, the population groups considered in this study were not at substantial risk from consuming leafy vegetables sprayed with PCZ following critical, good agricultural practices.

토양환경 중 Propiconazole 살균제의 제품 및 원제에 따른 분해 양상 비교

로알압둘카림 ( Lawal Abdulkareem ),곽세연 ( Se-yeon Kwak ),이상협 ( Sang-hyeob Lee ),아나루다사커 ( Aniruddha Sarker ),최재원 ( Jae-won Choi ),오지은 ( Ji-eun Oh ),김장억 ( Jang-eok Kim ) 한국환경농학회 2022 한국환경농학회 학술대회집 Vol.2022 No.-

The persistence of a named triazole fungicide; propiconazole in the soil is of great environmental concern because of its substantial risk of soil contamination, and bioaccumulation. This study evaluated the dissipation kinetics by equating the percentage purity of commercial-grade formulation (25% a.i.) and technical grade propiconazole (97.4% a.i.) in sterilized, and non-sterilized soil. The experiment was conducted using a laboratory incubator for 0, 1, 3, 5, 7, 15, 30, and 60 days at 28.0 °C. A rapid QuEChERS technique coupled with HPLC-UVD was employed for the propiconazole dissipation dynamics study. The findings showed that in non-sterilized soil, technical-grade propiconazole dissipated 1.8 times faster than commercial-grade, with a half-life of 20.3 days and 36.5 days, respectively. In contrast, in sterilized soil, technical-grade propiconazole dissipated 0.8 times faster than commercial grade, with a half-life of 69.22 days and 86.6 days, respectively. The rapid dissipation rate can be attributed to the high solubility of technical-grade propiconazole in the organic solvent (MeOH) used in the experiment and the tendency of commercial-grade propiconazole to form moderate to strong sorption with the soil because of dissolved stabilizers. Hence, this research complements parallel field studies under natural conditions for propiconazole and allows comparisons between the dissipation pattern and persistence observed in the field and the results from this laboratory experiment.

Ethnobotanical survey and nutritional composition of medicinal plants used for traditional galactagogue practice in Katsina state, Nigeria

Umar Lawal,Rukayat T. Mohammed,Sani M. Gidado,Sulaiman S. Kankara 경희대학교 융합한의과학연구소 2023 Oriental Pharmacy and Experimental Medicine Vol.23 No.3

An ethnobotanical survey was conducted in Katsina state, Northern Nigeria to document medicinal plants commonly used by lactating mothers to boost breast milk production. Two hundred and forty (240) respondents made up of (120) nursing mothers, (60) herbalists and (60) traditional birth attendants were interviewed. Ethnobotanical data was obtained using the structured questionnaire method. Standard procedures were followed to analyse the phyto-chemical, proximate, mineral concentrations and chemical composition of the ethanolic extract of the most cited plants. Forty (40) plant species belonging to 38 genera distributed among 24 families are used as galactagogues in Katsina state, Nigeria. All the plant samples contained alkaloids, cardiac glycosides, flavonoids, saponins, tannins and terpenoids. Anthraquinones were found to be absent in Andropogon gayanus, Moringa oleifera and Pennisetum glaucum while phytosterol was absent in Pennisetum glaucum and Vernonia amygdalina. They were also found to contain nutrient compositions in varying amounts. Crotalaria retusa had the highest moisture (12.80%), crude lipid (13.50%) and crude fibre (21.76%) content. Momordica balsamina has the highest ash (13.76%) content. Pennisetum glaucum had the highest carbohydrate content (76.19%) and energy content (364.95%). Mineral analysis revealed that Andropogon gayanus, Momordica balsamina and Vernonia amygdalina showed equal phosphorus (0.3 ppm) contents. Crotalaria retusa showed the highest chromium (2.59 ppm) and copper (1.31 ppm) content. GC/MS analysis revealed that Momordica balsamina contained 99 phytoconstituents. With only 9,12-Octadecadienoic acid (Z,Z)- identified as the only phytoconstituents showing phytoestrogen activity. The indigenous knowledge about lactating mothers in Katsina state, Nigeria used medicinal plants to boost breast milk production is documented.

Systematic Literature Review on Cloud Adoption

Idris Lawal Bagiwa,Imran Ghani,Muhammad Younas,Mannir Bello 한국인터넷방송통신학회 2016 International Journal of Internet, Broadcasting an Vol.8 No.2

While many organizations believe that cloud computing has the potential to reduce operational cost by abstracting capital assets like data storage center and processing systems into a readily on demand available and affordable operating expenses, still many of these organizations are not aware of the factors determining the performance of cloud computing technology. This paper provides a systematic literature review focusing on the factors determining the performance of cloud computing. In trying to come up with this review, the following sources were searched for relevant articles: ScienceDirect, Scientific.Net, ACMDigital Library, IEEE Xplore, Springer, World Scientific Journal, Wiley Online Library, Academic Search Premier (via EBSCOHost) and EdITLib (Education & Information Technology Digital Library). In first search strategy, approximately 100 keywords related to the research domain like; "Cloud Computing" and "Cloud Services" were used. In second search strategy, 65 keywords more related to the research domain were selected. In the third search strategy, the primary materials were identified and classified according to the paper types (Journal or Conference), year of publication and so on. Based on this study, twenty (20) factors were found that determine the performance of cloud computing. The IT organization needs to consider these twenty (20) factors in order to adopt cloud computing.

Investigation of excitonic states effects on optoelectronic properties of Sb2Se3 crystal for broadband photo-detector by highly accurate first-principles approach

Abdullahi Lawal,A. Shaari,R. Ahmed,L.S. Taura 한국물리학회 2018 Current Applied Physics Vol.18 No.5

The rapid demand of photodetector is increasing day by day due to its versatility of applications that affect our lives. However, it is still very challenging to produce low-cost high-performance broadband photo-detector that can detect light from near infrared to the ultraviolet frequency range for medical diagnosis and visible light communication applications. Regarding this, low-cost antimony selenide (Sb2Se3), with direct energy gap and strong light absorption over a wider range from near infrared to ultraviolet frequency, is considered a promising candidate material for such kind of applications. Therefore, to expose its hidden potential, detailed analysis of its structural, electronic and optical properties is very essential. To accomplish this purpose, different schemes of the first-principles calculations are used in this study. Structural properties of Sb2Se3 are calculated by first-principles methods realized within density functional theory (DFT) framework. Whereas, to compute the quasiparticle (QP) band structure, excitonic and optical properties, many-body perturbation theory (MBPT) based on oneshot GW (G0W0) and Bethe-Salpeter equation (G0W0-BSE) approaches are used. Our DFT calculations show that Wu-Cohen GGA (WC-GGA) reproduces lattice parameters of Sb2Se3 material consistent with the experimental measurements. Similarly, G0W0 calculations confirm the Sb2Se3 a direct bandgap energy material of 1.32 eV and show good agreement with the experimental results. Similarly, the results on the optical properties of Sb2Se3 with the inclusion of electron-hole interaction show that the exciton energy of the material is 1.28eV while its corresponding plasma energy is 10.86 eV. These values show that the investigated material can absorb photons from near infrared to ultraviolet wavelengths. It is, therefore, anticipated that this material will be useful for new-generation optoelectronic applications from near infrared to ultraviolet wavelengths.