1982 …2019
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Research Output 1982 2019

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Advancing social and economic development by investing in women's and children's health: A new Global Investment Framework

Stenberg, K., Axelson, H., Sheehan, P., Anderson, I., Gülmezoglu, A. M., Temmerman, M., Mason, E., Friedman, H. S., Bhutta, Z. A., Lawn, J. E., Sweeny, K., Tulloch, J., Hansen, P., Chopra, M., Gupta, A., Vogel, J. P., Ostergren, M., Rasmussen, B., Levin, C., Boyle, C. & 8 others, Kuruvilla, S., Koblinsky, M., Walker, N., De Francisco, A., Novcic, N., Presern, C., Jamison, D. & Bustreo, F., 2014, In : The Lancet. 383, 9925, p. 1333-1354 22 p.

Research output: Contribution to journalArticle

Economic Development
Women's Health
Economics
Gross Domestic Product
Stillbirth
Noise
efficiency
performance
ability
young adult

Aggregation bias and the use of regression in evaluating models of human performance

Walker, N. & Catrambone, R., 1993, In : Human Factors. 35, 3, p. 397-411 15 p.

Research output: Contribution to journalArticle

aggregation
Agglomeration
Regression Analysis
regression
trend

Aging and decision making: Driving-related problem solving

Walker, N., Fain, W. B., Fisk, A. D. & McGuire, C. L., Sep 1997, In : Human Factors. 39, 3, p. 438-444 7 p.

Research output: Contribution to journalArticle

Decision Making
Aging of materials
Decision making
speed limit
decision making

A global analysis of trends in the quality of HIV sero-surveillance

Garcia-Calleja, J. M., Zaniewski, E., Ghys, P. D., Stanecki, K. & Walker, N., Aug 2004, In : Sexually Transmitted Infections. 80, SUPPL. 1

Research output: Contribution to journalArticle

HIV
Databases
Censuses
Acquired Immunodeficiency Syndrome
Serum

AIDS in Africa.

Ghys, P. D., Walker, N. & Hankins, C., Nov 2 2002, In : The Lancet. 360, 9343

Research output: Contribution to journalArticle

Infectious Pregnancy Complications
Uganda
Condoms
HIV Infections
Acquired Immunodeficiency Syndrome

AIDS in Africa [2] (multiple letters)

Gisselquist, D., Potterat, J. J., Epstein, P., Vachon, F., Minkin, S. F., Buvé, A., Clerici, M., Boasso, A., Rizzardini, G., Deshpande, A., Biasin, M., Konotey-Ahulu, F. I. D., Ghys, P. D., Walker, N., Hankins, C. & Parkhurst, J., Nov 2 2002, In : The Lancet. 360, 9343, p. 1422-1425 4 p.

Research output: Contribution to journalArticle

Acquired Immunodeficiency Syndrome

AIDS in a new millennium

Schwartländer, B., Garnett, G., Walker, N. & Anderson, R., Jul 7 2000, In : Science. 289, 5476, p. 64-67 4 p.

Research output: Contribution to journalArticle

Anti-HIV Agents
United Nations
Population Dynamics
Health Policy
Risk-Taking

An evaluation of level of detail degradation in head-mounted display peripheries

Watson, B., Walker, N., Hodges, L. F. & Reddy, M., 1997, In : Presence: Teleoperators and Virtual Environments. 6, 6, p. 630-637 8 p.

Research output: Contribution to journalArticle

Display devices
Degradation
Analysis of variance (ANOVA)
Virtual reality

A program for parsing mouse movements into component submovements

Walker, N., Philbin, D., Worden, A. & Smelcer, J. B., 1997, In : Behavior Research Methods, Instruments, & Computers. 29, 3, p. 456-460 5 p.

Research output: Contribution to journalArticle

Research Personnel
Tremor
Hand
Parsing
Mouse

Assumptions and methods in the Lives Saved Tool (LiST)

Fox, M. J., Martorell, R., van den Broek, N. & Walker, N., 2011, In : BMC Public Health. 11, SUPPL. 3, I1.

Research output: Contribution to journalArticle

A survey of automatic teller machine usage across the adult life span

Rogers, W. A., Cabrera, E. F., Walker, N., Gilbert, D. K. & Fisk, A. D., Mar 1996, In : Human Factors. 38, 1, p. 156-166 11 p.

Research output: Contribution to journalArticle

Automatic teller machines
life-span
agglomeration area
experience
Demography

Back to basics in HIV prevention: Focus on exposure

Pisani, E., Garnett, G. P., Brown, T., Stover, J., Grassly, N. C., Hankins, C., Walker, N. & Ghys, P. D., Jun 21 2003, In : BMJ (Online). 326, 7403, p. 1384-1387 4 p.

Research output: Contribution to journalArticle

HIV Infections
HIV

Bangladesh: a success case in combating childhood diarrhoea

Billah, S. M., Raihana, S., Ali, N. B., Iqbal, A., Rahman, M. M., Khan, A. N. S., Karim, F., Karim, M. A., Hassan, A., Jackson, B., Walker, N., Hossain, M. A., Sarker, S., Black, R. E. & El Arifeen, S., Dec 1 2019, In : Journal of global health. 9, 2, 1 p.

Research output: Contribution to journalArticle

Open Access
Bangladesh
Diarrhea
Rehydration Solutions
Universal Coverage
Fluid Therapy

Better health statistics are possible

Bchir, A., Bhutta, Z., Binka, F., Black, R. E., Bradshaw, D., Garnett, G., Hayashi, K., Jha, P., Peto, R., Sawyer, C., Schwartländer, B., Walker, N., Wolfson, M., Yach, D. & Zaba, B., Jan 21 2006, In : The Lancet. 367, 9506, p. 190-193 4 p.

Research output: Contribution to journalArticle

Factual Databases
Research Design
Mortality
Health

Breastfeeding in the 21st century: Epidemiology, mechanisms, and lifelong effect

Victora, C. G., Bahl, R., Barros, A. J. D., França, G. V. A., Horton, S., Krasevec, J., Murch, S., Sankar, M. J., Walker, N. & Rollins, N. C., Jan 30 2016, In : The Lancet. 387, 10017, p. 475-490 16 p.

Research output: Contribution to journalArticle

Breast Feeding
Epidemiology
Breast Neoplasms
Birth Intervals
Malocclusion

Can available interventions end preventable deaths in mothers, newborn babies, and stillbirths, and at what cost?

Bhutta, Z. A., Das, J. K., Bahl, R., Lawn, J. E., Salam, R. A., Paul, V. K., Sankar, M. J., Blencowe, H., Rizvi, A., Chou, V. B. & Walker, N., 2014, In : Obstetrical and Gynecological Survey. 69, 11, p. 641-643 3 p.

Research output: Contribution to journalArticle

Stillbirth
Costs and Cost Analysis

Can available interventions end preventable deaths in mothers, newborn babies, and stillbirths, and at what cost?

Bhutta, Z. A., Das, J. K., Bahl, R., Lawn, J. E., Salam, R. A., Paul, V. K., Sankar, M. J., Blencowe, H., Rizvi, A., Chou, V. B. & Walker, N., 2014, In : The Lancet. 384, 9940, p. 347-370 24 p.

Research output: Contribution to journalArticle

Stillbirth
Maternal Death
Mothers
Newborn Infant
Costs and Cost Analysis

Can the world afford to save the lives of 6 million children each year?

Bryce, J., Black, R. E., Walker, N., Bhutta, Z. A., Lawn, J. E. & Steketee, R. W., Jun 25 2005, In : The Lancet. 365, 9478, p. 2193-2200 8 p.

Research output: Contribution to journalArticle

Costs and Cost Analysis
Universal Coverage
Drug Costs
Child Development
Developing Countries

Can we reverse the HIV/AIDS pandemic with an expanded response?

Stover, J., Walker, N., Garnett, G. P., Salomon, J. A., Stanecki, K. A., Ghys, P. D., Grassly, N. C., Anderson, R. M. & Schwartländer, B., Jul 6 2002, In : The Lancet. 360, 9326, p. 73-77 5 p.

Research output: Contribution to journalArticle

Pandemics
Acquired Immunodeficiency Syndrome
HIV
Risk-Taking
HIV-1

Child Mortality Estimation: Methods Used to Adjust for Bias due to AIDS in Estimating Trends in Under-Five Mortality

Walker, N., Hill, K. & Zhao, F., Aug 2012, In : PLoS Medicine. 9, 8, e1001298.

Research output: Contribution to journalArticle

Child Mortality
Acquired Immunodeficiency Syndrome
Mothers
HIV
Mortality

Child Mortality Estimation: Accelerated Progress in Reducing Global Child Mortality, 1990-2010

Hill, K., You, D., Inoue, M., Oestergaard, M. Z., Hill, K., Alkema, L., Cousens, S., Croft, T., Guillot, M., Pedersen, J., Walker, N., Wilmoth, J. & Jones, G., Aug 2012, In : PLoS Medicine. 9, 8, e1001303.

Research output: Contribution to journalArticle

Child Mortality
United Nations
Infant Mortality
International Agencies
Mortality

Child mortality estimation 2013: An overview of updates in estimation methods by the United Nations Inter-Agency Group for Child Mortality Estimation

Alkema, L., New, J. R., Pedersen, J., You, D., Bastian, P., Wu, J., Wardlaw, T., Mathers, C., Boerma, T., Ho, J., Suzuki, E., Pelletier, F., Andreev, K., Gerland, P., Gu, D., Li, N., Sawyer, C., Spoorenberg, T., Wilmoth, J., Hill, K. & 5 others, Cousens, S., Croft, T., Jones, G., Guillot, M. & Walker, N., Jul 11 2014, In : PLoS One. 9, 7, e101112.

Research output: Contribution to journalArticle

Child Mortality
United Nations
methodology
death
Databases

Classification of visual representations

Lohse, G. L., Biolsi, K., Walker, N. & Rueter, H. H., Dec 1994, In : Communications of the ACM. 37, 12, p. 36-49 14 p.

Research output: Contribution to journalArticle

Taxonomies
Taxonomy
Similarity Measure
Anomaly
Predict

Classifying graphical information

Lohse, G., Walker, N., Biolsi, K. & RUETer, H., 1991, In : Behaviour and Information Technology. 10, 5, p. 419-436 18 p.

Research output: Contribution to journalArticle

Art
experiment
graphic arts
Research
cognitive structure

Comparing modelled predictions of neonatal mortality impacts using list with observed results of community-based intervention trials in South Asia

Friberg, I. K., Bhutta, Z. A., Darmstadt, G. L., Bang, A., Cousens, S., Baqui, A., Kumar, V., Walker, N. & Lawn, J. E., Apr 1 2010, In : International Journal of Epidemiology. 39, SUPPL. 1

Research output: Contribution to journalArticle

Infant Mortality
Mortality

Comparison of household-survey estimates with projections of mortality and orphan numbers in sub-Saharan Africa in the area of HIV/AIDS

Grassly, N. C., Lewis, J. J. C., Mahy, M., Walker, N. & Timaæus, I. M., Jul 2004, In : Population Studies. 58, 2, p. 207-217 11 p.

Research output: Contribution to journalArticle

orphan
household survey
projection
AIDS
mortality

Comprehension and recall of sentences by mentally retarded and nonretarded individuals

Bilsky, L. H., Walker, N. & Sakales, S. R., 1983, In : American Journal of Mental Deficiency. 87, 5, p. 558-565 8 p.

Research output: Contribution to journalArticle

Mentally Disabled Persons
Cues
Aptitude
Sentence Recall

Country-specific estimates and models of HIV and AIDS: Methods and limitations

Schwartländer, B., Stanecki, K. A., Brown, T., Way, P. O., Monasch, R., Chin, J., Tarantola, D. & Walker, N., 1999, In : AIDS. 13, 17, p. 2445-2458 14 p.

Research output: Contribution to journalArticle

Acquired Immunodeficiency Syndrome
HIV
HIV Infections
Mortality
Sex Ratio

Declines in HIV prevalence can be associated with changing sexual behaviour in Uganda, urban Kenya, Zimbabwe, and urban Haiti

Hallett, T. B., Aberle-Grasse, J., Bello, G., Boulos, L. M., Cayemittes, M. P. A., Cheluget, B., Chipeta, J., Dorrington, R., Dube, S., Ekra, A. K., Garcia-Calleja, J. M., Garnett, G. P., Greby, S., Gregson, S., Grove, J. T., Hader, S., Hanson, J., Hladik, W., Ismail, S., Kassim, S. & 9 others, Kirungi, W., Kouassi, L., Mahomva, A., Marum, L., Maurice, C., Nolan, M., Rehle, T., Stover, J. & Walker, N., Apr 2006, In : Sexually Transmitted Infections. 82, SUPPL. 1

Research output: Contribution to journalArticle

Haiti
Zimbabwe
Uganda
Kenya
Sexual Behavior

Direct retrieval from elaborated memory traces

Walker, N., Jul 1986, In : Memory & Cognition. 14, 4, p. 321-328 8 p.

Research output: Contribution to journalArticle

Names
Memory Trace
Experiment
Elaboration
Associative

Discrepancies between UN models and DHS survey estimates of maternal orphan prevalence: Insights from analyses of survey data from Zimbabwe

Robertson, L., Gregson, S., Madanhire, C., Walker, N., Mushati, P., Garnett, G. & Nyamukapa, C., Aug 2008, In : Sexually Transmitted Infections. 84, SUPPL. 1

Research output: Contribution to journalArticle

Zimbabwe
Orphaned Children
United Nations
Mothers
Demography

Distribution of major health risks: Findings from the global burden of disease study

Comparative Risk Assessment Collaborating Group, Jan 1 2004, In : PLoS Medicine. 1, 1, p. 44-55 12 p., e27.

Research output: Contribution to journalArticle

Health
Population
Thinness
Tobacco Use
Vegetables

Drivers of the progress achieved by Peru in reducing childhood diarrhoea mortality: a country case study

Huicho, L., Tavera, M., Huayanay-Espinoza, C. A., Béjar-Díaz, M., Rivera-Ch, M., Tam, Y., Walker, N. & Black, R. E., Dec 1 2019, In : Journal of global health. 9, 2, 1 p.

Research output: Contribution to journalArticle

Open Access
Peru
Diarrhea
Mortality
Salts
Growth Disorders

Drivers of the reduction in childhood diarrhea mortality 1980-2015 and interventions to eliminate preventable diarrhea deaths by 2030

Black, R., Fontaine, O., Lamberti, L., Bhan, M., Huicho, L., El Arifeen, S., Masanja, H., Walker, C. F., Mengestu, T. K., Pearson, L., Young, M., Orobaton, N., Chu, Y., Jackson, B., Bateman, M., Walker, N. & Merson, M., Dec 1 2019, In : Journal of global health. 9, 2, 1 p.

Research output: Contribution to journalArticle

Open Access
Diarrhea
Mortality
Rehydration Solutions
Fluid Therapy
Rotavirus Vaccines

Effects of deworming on child and maternal health: A literature review and meta-analysis

Thayer, W. M., Clermont, A. & Walker, N., Nov 7 2017, In : BMC Public Health. 17, 830.

Research output: Contribution to journalArticle

Meta-Analysis
Pregnant Women
Mortality
Helminths
Growth

Effects of variation in system responsiveness on user performance in virtual environments

Watson, B., Walker, N., Ribarsky, W. & Spaulding, V., Sep 1998, In : Human Factors. 40, 3, p. 403-414 12 p.

Research output: Contribution to journalArticle

Sensory Feedback
Virtual reality
Feedback
Data visualization
Hand Strength

Encoding processes and the recall of text

Walker, N., Jones, J. P. & Mar, H. H., May 1983, In : Memory & Cognition. 11, 3, p. 275-282 8 p.

Research output: Contribution to journalArticle

Reading
Research
Encoding
Experiment
Paragraph

Epidemiological analysis of the quality of HIV sero-surveillance in the world: How well do we track the epidemic?

Walker, N., Garcia-Calleja, J. M., Heaton, L., Asamoah-Odei, E., Poumerol, G., Lazzari, S., Ghys, P. D., Schwartländer, B. & Stanecki, K. A., Aug 17 2001, In : AIDS. 15, 12, p. 1545-1554 10 p.

Research output: Contribution to journalArticle

HIV
Acquired Immunodeficiency Syndrome
Sentinel Surveillance
Epidemiological Monitoring
Databases

Estimated global distribution and regional spread of HIV-1 genetic subtypes in the year 2000

Osmanov, S., Pattou, C., Walker, N., Schwardländer, B., Esparza, J., Abimiku, A., Barre-Sinoussi, F., Biberfield, G., Birx, D., Bobkov, A., Von Briesen, H., Dietrich, U., Chappey, C., Galvao-Castro, B., Morgado, M., Tanuri, A., Goudsmit, J., Lukashov, L., Van der Groen, G., Heyndrickx, L. & 24 others, Janssen, W., Hahn, B., Gao, F., Hoelscher, M., Kaleebu, P., Sempala, S., Kalish, M., Korber, B., Lopez-Galindez, C., M'Boup, S., McCutchan, F., Mhalu, F., Lyamuya, E., Mullins, J., Najera, R., Nkengasong, J., Peeters, M., Delaporte, E., Salminen, M., Salomon, H., Samuel, N. M., Shao, Y., Wasi, C. & Williamson, C., Feb 1 2002, In : Journal of Acquired Immune Deficiency Syndromes. 29, 2, p. 184-190 7 p.

Research output: Contribution to journalArticle

HIV-1
HIV
Pandemics
Virology
Acquired Immunodeficiency Syndrome

Estimates of child deaths prevented from malaria prevention scale-up in Africa 2001-2010

Eisele, T. P., Larsen, D. A., Walker, N., Cibulskis, R. E., Yukich, J. O., Zikusooka, C. M. & Steketee, R. W., 2012, In : Malaria Journal. 11, 93.

Research output: Contribution to journalArticle

Malaria
Universal Coverage
Pregnancy
Mortality
Uncertainty

Estimates of HIV-1 prevalence from national population-based surveys as a new gold standard

Boerma, J. T., Ghys, P. D. & Walker, N., Dec 6 2003, In : The Lancet. 362, 9399, p. 1929-1931 3 p.

Research output: Contribution to journalArticle

HIV-1
Population
Surveys and Questionnaires

Estimates of HIV burden in emergencies

Lowicki-Zucca, M., Spiegel, P., Kelly, S., Dehne, K. L., Walker, N. & Ghys, P. D., Aug 2008, In : Sexually Transmitted Infections. 84, SUPPL. 1

Research output: Contribution to journalArticle

Emergencies
HIV
Disasters
Civil Defense
Psychological Stress

Estimates of maternal mortality worldwide between 1990 and 2005: an assessment of available data

Hill, K., Thomas, K., AbouZahr, C., Walker, N., Say, L., Inoue, M. & Suzuki, E., Oct 13 2007, In : The Lancet. 370, 9595, p. 1311-1319 9 p.

Research output: Contribution to journalArticle

Maternal Mortality
Maternal Death
Africa South of the Sahara
Uncertainty
Cause of Death

Estimating HIV/AIDS prevalence in countries with low-level and concentrated epidemics: The example of Honduras

Ramón, J. S., Alvarenga, M., Walker, N., Garcia-Calleja, J. M. & Zacarias, F., Dec 2002, In : AIDS. 16, SUPPL. 3

Research output: Contribution to journalArticle

Honduras
Acquired Immunodeficiency Syndrome
HIV
Population Density
Uncertainty

Estimating lives saved by achieving dietary micronutrient adequacy, with a focus on vitamin A intervention programs in Cameroon

Engle-Stone, R., Perkins, A., Clermont, A., Walker, N., Haskell, M. J., Vosti, S. A. & Brown, K. H., Nov 1 2017, In : Journal of Nutrition. 147, 11, p. 2194S-2203S

Research output: Contribution to journalArticle

Cameroon
Micronutrients
Vitamin A
Child Mortality
Mortality

Estimating resource needs for HIV/AIDS health care services in low-income and middle-income countries

Bertozzi, S., Gutierrez, J. P., Opuni, M., Walker, N. & Schwartländer, B., Aug 2004, In : Health Policy. 69, 2, p. 189-200 12 p.

Research output: Contribution to journalArticle

Health Services
Acquired Immunodeficiency Syndrome
HIV
Delivery of Health Care
United Nations

Estimating the global burden of HIV/AIDS: What do we really know about the HIV pandemic?

Walker, N., Grassly, N. C., Garnett, G. P., Stanecki, K. A. & Ghys, P. D., Jun 26 2004, In : The Lancet. 363, 9427, p. 2180-2185 6 p.

Research output: Contribution to journalArticle

Pandemics
Acquired Immunodeficiency Syndrome
HIV
Uncertainty
Morbidity

Estimating the global impact of poor quality of care on maternal and neonatal outcomes in 81 low- and middle-income countries: A modeling study

Chou, V. B., Walker, N. & Kanyangarara, M., Dec 1 2019, In : PLoS medicine. 16, 12, p. e1002990

Research output: Contribution to journalArticle

Open Access
Quality of Health Care
Mothers
Health Facilities
Stillbirth
Parturition

Estimating the herd immunity effect of rotavirus vaccine

Pollard, S., Malpica-Llanos, T., Friberg, I. K., Fischer-Walker, C., Ashraf, S. & Walker, N., Jul 31 2015, In : Vaccine. 33, 32, p. 3795-3800 6 p.

Research output: Contribution to journalArticle

Herd Immunity
Rotavirus Vaccines
Rotavirus
Gastroenteritis
gastroenteritis