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1

DDT, DDE and DDD in Human Milk from South Africa

Jonathan Okechukwu Okonkwo, Tshinanne N. Mutshatshi, Ben Botha, Nana Agyei

Journal:

Bulletin of Environmental Contamination and Toxicology

Year:

2008

Language:

english

File:

PDF, 384 KB

english, 2008

2

Physicochemical characterization of maize tassel as an adsorbent. I. Surface texture, microstructure, and thermal stability

Caliphs M. Zvinowanda, Jonathan O. Okonkwo, Nana M. Agyei, Pride N. Shabalala

Journal:

Journal of Applied Polymer Science

Year:

2009

Language:

english

File:

PDF, 311 KB

english, 2009

3

Chiral separations using heparin and dextran sulfate in capillary zone electrophoresis

Nana M. Agyei, Kyung H. Gahm, Apryll M. Stalcup

Journal:

Analytica Chimica Acta

Year:

1995

Language:

english

File:

PDF, 623 KB

english, 1995

4

Application of maize tassel for the removal of Pb, Se, Sr, U and V from borehole water contaminated with mine wastewater in the presence of alkaline metals

Caliphs M. Zvinowanda, Jonathan O. Okonkwo, Mahlatse M. Sekhula, Nana M. Agyei, Rotimi Sadiku

Journal:

Journal of Hazardous Materials

Year:

2009

Language:

english

File:

PDF, 483 KB

english, 2009

5

Levels of brominated flame retardants and other pesistent organic pollutants in breast milk samples from Limpopo province, South Africa

Per Ola Darnerud, Marie Aune, Lotta Larsson, Sanna Lignell, Tshinanne Mutshatshi, Jonathan Okonkwo, Ben Botha, Nana Agyei

Journal:

Science of The Total Environment

Year:

2011

Language:

english

File:

PDF, 403 KB

english, 2011

6

Recent Advances in Polymeric Materials Used as Electron Mediators and Immobilizing Matrices in Developing Enzyme Electrodes

Moyo, Mambo, Okonkwo, Jonathan O., Agyei, Nana M.

Journal:

Year:

2012

Language:

english

File:

PDF, 629 KB

english, 2012

7

A Novel Hydrogen Peroxide Biosensor Based on Adsorption of Horseradish Peroxidase onto a Nanobiomaterial Composite Modified Glassy Carbon Electrode

Moyo, Mambo, Okonkwo, Jonathan O., Agyei, Nana M.

Journal:

Electroanalysis

Year:

2013

Language:

english

File:

PDF, 942 KB

english, 2013

8

Maize tassel-modified carbon paste electrode for voltammetric determination of Cu(II)

Moyo, Mambo, Okonkwo, Jonathan O., Agyei, Nana M.

Journal:

Environmental Monitoring and Assessment

Year:

2014

Language:

english

File:

PDF, 1.10 MB

english, 2014

9

An amperometric biosensor based on horseradish peroxidase immobilized onto maize tassel-multi-walled carbon nanotubes modified glassy carbon electrode for determination of heavy metal ions in aqueous solution

Moyo, Mambo, Okonkwo, Jonathan O., Agyei, Nana M.

Journal:

Enzyme and Microbial Technology

Year:

2014

Language:

english

File:

PDF, 1.55 MB

english, 2014

10

[IEEE 2013 IEEE Sensors - Baltimore, MD, USA (2013.11.3-2013.11.6)] 2013 IEEE SENSORS - HRP biosensor based on carbonized maize tassel-MWNTs modified electrode for the detection of divalent trace metal ions

Mambo, Moyo, Jonathan, Okonkwo O., Nana, Agyei M.

Year:

2013

Language:

english

File:

PDF, 724 KB

english, 2013

11

Heparin: A Chiral Mobile-Phase Additive for Capillary Zone Electrophoresis

Stalcup, Apryll M., Agyei, Nana M.

Journal:

Analytical Chemistry

Year:

1994

Language:

english

File:

PDF, 518 KB

english, 1994

12

Economic burden of malaria on businesses in Ghana: a case for private sector investment in malaria control

Nonvignon, Justice, Aryeetey, Genevieve Cecilia, Malm, Keziah L., Agyemang, Samuel Agyei, Aubyn, Vivian N. A., Peprah, Nana Yaw, Bart-Plange, Constance N., Aikins, Moses

Journal:

Malaria Journal

Year:

2016

Language:

english

File:

PDF, 1.13 MB

english, 2016

13

Association of Adolescent- and Caregiver-Reported Antiretroviral Therapy Adherence with HIV Viral Load Among Perinatally-infected South African Adolescents

Brittain, Kirsty, Asafu-Agyei, Nana Akua, Hoare, Jacqueline, Bekker, Linda-Gail, Rabie, Helena, Nuttall, James, Roux, Paul, Stein, Dan J., Zar, Heather J., Myer, Landon

Journal:

AIDS and Behavior

Year:

2017

Language:

english

File:

PDF, 789 KB

english, 2017

14

Prevalence of risk factors for chronic kidney disease in South African youth with perinatally acquired HIV

Frigati, Lisa, Mahtab, Sana, Nourse, Peter, Ray, Patricio, Perrazzo, Sofia, Machemedze, Takwanisa, Agyei, Nana-Akua Asafu, Cotton, Mark, Myer, Landon, Zar, Heather

Journal:

Pediatric Nephrology

Year:

2018

Language:

english

File:

PDF, 403 KB

english, 2018

15

Insulin Resistance in South African Youth Living with Perinatally Acquired HIV Receiving Antiretroviral Therapy

Frigati, Lisa J., Jao, Jennifer, Mahtab, Sana, Agyei, Nana-Akua Asafu, Cotton, Mark F., Myer, Landon, Zar, Heather J.

Journal:

AIDS Research and Human Retroviruses

Year:

2018

Language:

english

File:

PDF, 127 KB

english, 2018

16

EXPRESSION OF PLATELET PARAMETERS AND PLATELET MEMBRANE GLYCOPROTEINS IN CHILDHOOD BURKITT LYMPHOMA

Asare, Renate, Opoku- Okrah, Clement, Danquah, Kwabena Owusu, Nana, Opare sem, Addai-Mensah, Otchere, Gyamfi, Daniel, Amponsah, Francis Agyei, Afriyie, Edward Y., Duneeh, Richard Vikpebah, Ntiamoah, D

Journal:

Leukemia Research

Year:

2019

Language:

english

File:

PDF, 730 KB

english, 2019

17

Elemental minerals and microbial compositions as well as knowledge and perceptions regarding kaolin (clay) consumption by pregnant women in the Ho municipality of Ghana

Kortei, Nii Korley, Annor, Isaac Agyei, Aboagye, George, Manaphraim, Nana Yaw Barimah, Koryo-Dabrah, Alice, Awude, Emelia, Essuman, Edward Ken, Alidu, Huseini Wiisibie, Tettey, Clement Okraku, Awadzi,

Journal:

Pan African Medical Journal

Year:

2019

Language:

english

File:

PDF, 317 KB

english, 2019

18

Trends in type 1 diabetes diagnosis in Ghana

Sarfo-Kantanka, Osei, Asamoah-Boaheng, Michael, Arthur, Joshua, Agyei, Martin, Barnes, Nana Ama, Tenkorang, Eric Y, Midodzi, William

Journal:

International Health

Year:

2020

File:

PDF, 297 KB

2020

19

Echocardiographic Findings in a Cohort of Perinatally HIV-Infected Adolescents Compared with Uninfected Peers from the Cape Town Adolescent Antiretroviral Cohort

Mahtab, Sana, Lawrenson, John, Jamieson-Luff, Norme, Asafu-Agyei, Nana Akua, Meiring, Alet, Lemmer-Hunsinger, Carolise, Myer, Landon, Zar, Heather J., ZÃ¼hlke, Liesl J.

Journal:

Journal of the American Society of Echocardiography

Year:

2020

File:

PDF, 237 KB

2020

20

Endothelial dysfunction in South African youth living with perinatally acquired HIV on antiretroviral therapy

Mahtab, Sana, Zar, Heather J, Ntusi, Ntobeko A B, Joubert, Susan, Asafu-Agyei, Nana Akua A, Luff, Norme J, Jele, Nomawethu, Liesl, Zuhlke, Myer, Landon, Jao, Jennifer

Journal:

Clinical Infectious Diseases

Year:

2020

File:

PDF, 747 KB

2020

21

Prevalence and predictors of bone health among perinatally HIV-infected adolescents

Mahtab, Sana, Scott, Chris, Asafu-Agyei, Nana Akua A., Machemedze, Takwanisa, Frigati, Lisa, Myer, Landon, Zar, Heather J.

Journal:

Year:

2020

File:

PDF, 252 KB

2020