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26 results on '"Solomon, S.R."'

2. GEOCHEMICAL ASSESSMENT OF TRACE METALS IN SOIL, STREAM WATER AND SELECTED FOOD CROPS AT KIBI GOLDFIELDS ENVIRONMENT, GHANA

Author

Douglas Baah Siaw, Solomon S.R. Gidigasu, Anthony Andrews, Emmanuel Gikunoo, and Gordon Foli

Subjects
bioaccumulation, translocation, reclaimed soil, stream water, trace metals., Geology, QE1-996.5
Abstract

This study assesses environmental receptors impacted by alluvial gold mining at Kibi Goldfields Limited in the Eastern region of Ghana to establish trace metals contamination risk. Specific objectives are to determine concentrations of (1) As, Cr, Ni and Pb in soils, drainage and food crops, using X-ray fluorescence, (2) Cl- in drainage using standard methods. Mean concentrations of As, Cr and Ni in soils are higher at impacted sites than control sites; while Pb and As concentrations in drainage exceeds the maximum contamination guideline values in drinking water. Using Cl- as a conservative tracer, As and Pb are adsorbing from water, while Cr and Ni are desorbing into water. In the food crops, bioaccumulation factors of As and Ni are profound at the impacted site than control sites; Except Cr in cocoyam at impacted sites, translocation factors are negligible in the food crops. Cr bioaccumulates in in cocoyam and plantain at the control site, while Ni bioaccumulates in only plantain at the impacted sites. Overall, the metal contamination is of concern in the receptors, except Pd in plants. Results from this study can be used for trace metals risk assessment in the environment.

Published
2020
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3. GEOCHEMICAL AND MINERALOGICAL CHARACTERIZATION OF SOME CLAY MATERIALS AS FLUORIDE ADSORBENT FROM GROUNDWATER IN GHANA

Author

Eric E. Bayari, Maxwell Anim-Gyampo, Solomon S.R. Gidigasu, and Gordon Foli

Subjects
concentration, fluoridation, termitaria, residual, navrongo, bongo., Geology, QE1-996.5
Abstract

This research conducted in the Upper East Region of Ghana characterizes Termitaria and residual clays from Navrongo to establish effective fluoride adsorbent from boreholes in Bongo area. Specific objectives are to determine (1) geochemical and mineralogical compositions of the clays using ICP-MS and X-ray diffraction devices, respectively; (2) fluoride degradation in groundwater using a Batch test (3) water quality after fluoride removal. The Batch test uses 250 ml of groundwater with 2.29 mg/l fluoride and clay masses of 25, 50, 100 and 200 grams to perform within a minimum and varying time of 10 minutes to a maximum of 120 minutes. Results indicate enrichments of major elements in Termitaria clay and trace elements in residual clay. Fluoride reduces to 0.778 mg/l and 0.294 mg/l at a mass of 0.8 kg/l over 80 minutes for Termitaria and residual clays, respectively. Optimum defluoridation time occurs within an hour in the pH range of 7.83 to 8.04. Quartz-hematite-magnetite-illite-montmorillonite suite occurs in residual clay with defluoridation capacity of 66.25 %, while quartz-illite-montmorillonite suite occurs in Termitaria clay with defluoridation capacity of 87.25 %, and constitute the more efficient adsorbent. TDS and conductivity are within WHO standard guidelines, which confirms the clays as non-toxic.

Published
2020
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5. Cardiometabolic disease risk factors in pre- and postmenopausal women from four sub-Saharan African countries: A cross-sectional study

Author

Chikwati, Raylton P., primary, Mahyoodeen, Nasrin Goolam, additional, Jaff, Nicole G., additional, Ramsay, Michele, additional, Micklesfield, Lisa K., additional, Wade, Alisha N., additional, Agongo, Godfred, additional, Asiki, Gershim, additional, Choma, Solomon S.R., additional, Boua, Palwende R., additional, George, Jaya A., additional, and Crowther, Nigel J., additional

Published
2023
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6. B08 IDECABTAGENE VICLEUCEL VERSUS STANDARD REGIMENS IN PATIENTS WITH TRIPLE-CLASS–EXPOSED RELAPSED AND REFRACTORY MULTIPLE MYELOMA: KARMMA-3 A PHASE 3 RANDOMIZED CONTROLLED TRIAL

Author

Rodríguez-Otero, P., primary, Ailawadhi, S., additional, Arnulf, B., additional, Patel, K., additional, Cavo, M., additional, Nooka, A.K., additional, Manier, S., additional, Callander, N., additional, Costa, L.J., additional, Vij, R., additional, Bahlis, N.J., additional, Moreau, P., additional, Solomon, S.R., additional, Delforge, M., additional, Berdeja, J., additional, Truppel-Hartmann, A., additional, Yang, Z., additional, Favre-Kontula, L., additional, Wu, F., additional, Piasecki, J., additional, Cook, M., additional, and Giralt, S., additional

Published
2023
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9. Racial and Ethnic Differences in the Association Between Classical Cardiovascular Risk Factors and Common Carotid Intima-Media Thickness:An Individual Participant Data Meta-Analysis

Author

Nonterah, Engelbert A., Crowther, Nigel J., Klipstein-Grobusch, Kerstin, Oduro, Abraham R., Kavousi, Maryam, Agongo, Godfred, Anderson, Todd J., Asiki, Gershim, Boua, Palwendé R., Choma, Solomon S.R., Couper, David J., Engström, Gunnar, de Graaf, Jacqueline, Kauhanen, Jussi, Lonn, Eva M., Mathiesen, Ellisiv B., Micklesfield, Lisa K., Okazaki, Shuhei, Polak, Joseph F., Rundek, Tatjana, Salonen, Jukka T., Tollman, Stephen M., Tuomainen, Tomi Pekka, Grobbee, Diederick E., Ramsay, Michéle, Bots, Michiel L., Nonterah, Engelbert A., Crowther, Nigel J., Klipstein-Grobusch, Kerstin, Oduro, Abraham R., Kavousi, Maryam, Agongo, Godfred, Anderson, Todd J., Asiki, Gershim, Boua, Palwendé R., Choma, Solomon S.R., Couper, David J., Engström, Gunnar, de Graaf, Jacqueline, Kauhanen, Jussi, Lonn, Eva M., Mathiesen, Ellisiv B., Micklesfield, Lisa K., Okazaki, Shuhei, Polak, Joseph F., Rundek, Tatjana, Salonen, Jukka T., Tollman, Stephen M., Tuomainen, Tomi Pekka, Grobbee, Diederick E., Ramsay, Michéle, and Bots, Michiel L.

Abstract

BACKGROUND: The major risk factors for atherosclerotic cardiovascular disease differ by race or ethnicity but have largely been defined using populations of European ancestry. Despite the rising prevalence of cardiovascular disease in Africa there are few related data from African populations. Therefore, we compared the association of established cardiovascular risk factors with carotid-intima media thickness (CIMT), a subclinical marker of atherosclerosis, between African, African American, Asian, European, and Hispanic populations. METHODS AND RESULTS: Cross-sectional analyses of 34 025 men and women drawn from 15 cohorts in Africa, Asia, Europe, and North America were undertaken. Classical cardiovascular risk factors were assessed and CIMT measured using B-mode ultrasound. Ethnic differences in the association of established cardiovascular risk factors with CIMT were determined using a 2-stage individual participant data meta-analysis with beta coefficients expressed as a percentage using the White population as the reference group. CIMT adjusted for risk factors was the greatest among African American populations followed by Asian, European, and Hispanic populations with African populations having the lowest mean CIMT. In all racial or ethnic groups, men had higher CIMT levels compared with women. Age, sex, body mass index, and systolic blood pressure had a significant positive association with CIMT in all races and ethnicities at varying magnitudes. When compared with European populations, the association of age, sex, and systolic blood pressure with CIMT was weaker in all races and ethnicities. Smoking (beta coeffi-cient, 0.39; 95% CI, 0.09– 0.70), body mass index (beta coefficient, 0.05; 95% CI, 0.01– 0.08) and glucose (beta coefficient, 0.13; 95% CI, 0.06– 0.19) had the strongest positive association with CIMT in the Asian population when compared with all other racial and ethnic groups. High-density lipoprotein-cholesterol had significant protective effe

Published
2022

18. Pharmacokinetics and Safety of Once-Daily Intravenous Busulfan with Bortezomib in Patients with Relapsed Multiple Myeloma Undergoing a Second Autologous Hematopoietic Stem Cell Transplantation

Author

Freytes, C.O., primary, Toro, J.J., additional, Yeh, R.F., additional, Stadtmauer, E.A., additional, Ratanatharathorn, V., additional, Akpek, G., additional, Sahovic, E., additional, Tricot, G.J., additional, Shaughnessy, P.J., additional, White, D.J., additional, Rodriguez, T.E., additional, Solomon, S.R., additional, Yu, L., additional, Patil, S., additional, Sun, Y., additional, Armstrong, E., additional, Elekes, A., additional, Kato, K., additional, and Reece, D.E., additional

Published
2012
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26. A0897 - Effect of shared decision making on racial and ethnic disparity in prostate cancer screening: Results from a national behavioral survey.

Author

Frego, N., Labban, M., Stone, B.V., Koelker, M., Beatrici, E., Filipas, D.K., Lughezzani, G., Buffi, N.M., Abdollah, F., Osman, N.Y., Solomon, S.R., Lipsitz, S.R., Kibel, A.S., Sammon, J.D., Trinh, Q-D., and Cole, A.P.

Subjects
*EARLY detection of cancer, *RACIAL inequality, *PROSTATE cancer, *DECISION making
Published
2023
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