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Alastair Van Heerden

Concepts (226)

Concepts are derived automatically from a person's publications.
Concepts are listed by decreasing relevance which is based on many factors, including how many publications the person wrote about that topic, how long ago those publications were written, and how many publications other people have written on that same topic.


Name Number of Publications Most Recent Publication Publications by All Authors Concept Score Why?
HIV Infections
47
2025
5097
4.270
Why?
Telemedicine
5
2024
25
2.070
Why?
Anti-HIV Agents
14
2025
1324
2.000
Why?
Humans
67
2025
14537
1.750
Why?
South Africa
53
2025
7596
1.670
Why?
Sexual Partners
8
2025
215
1.590
Why?
Cell Phone
7
2021
34
1.580
Why?
Female
43
2025
9103
1.280
Why?
Artificial Intelligence
3
2024
10
1.240
Why?
Rural Population
10
2024
654
1.200
Why?
Child Development
3
2019
93
1.170
Why?
Male
34
2025
6754
1.130
Why?
Counseling
7
2025
143
1.120
Why?
Adult
34
2025
5913
1.120
Why?
Young Adult
23
2024
2498
1.070
Why?
Depression
3
2024
121
1.070
Why?
Mothers
5
2024
195
1.000
Why?
Acquired Immunodeficiency Syndrome
3
2023
187
0.990
Why?
Mental Health Services
2
2023
10
0.990
Why?
Research Design
3
2019
124
0.970
Why?
Anti-Retroviral Agents
3
2023
551
0.880
Why?
Privacy
2
2023
4
0.850
Why?
Mass Screening
9
2024
245
0.840
Why?
Social Media
2
2020
7
0.830
Why?
Diabetes, Gestational
1
2024
38
0.820
Why?
Adolescent
18
2024
2985
0.800
Why?
Health Services Accessibility
3
2021
280
0.760
Why?
Tuberculosis
3
2024
543
0.740
Why?
Surveys and Questionnaires
7
2024
563
0.720
Why?
Data Collection
3
2019
86
0.720
Why?
Point-of-Care Systems
4
2022
91
0.690
Why?
Mental Health
2
2019
91
0.690
Why?
Pre-Exposure Prophylaxis
1
2024
196
0.690
Why?
Epidemiological Monitoring
1
2020
45
0.660
Why?
Middle Aged
15
2025
3601
0.660
Why?
Patient Compliance
4
2023
120
0.660
Why?
Technology
1
2019
4
0.640
Why?
Informed Consent
1
2019
8
0.640
Why?
Attitude
1
2019
12
0.630
Why?
Confidentiality
1
2019
13
0.630
Why?
Noncommunicable Diseases
2
2018
77
0.630
Why?
Alcohol Drinking
2
2017
55
0.620
Why?
Executive Function
1
2019
23
0.610
Why?
House Calls
1
2019
9
0.600
Why?
Interdisciplinary Research
1
2017
2
0.560
Why?
Quality of Life
1
2019
177
0.540
Why?
Depressive Disorder, Major
1
2017
20
0.540
Why?
Feasibility Studies
5
2022
101
0.540
Why?
Child, Preschool
6
2022
1748
0.540
Why?
Perception
1
2017
42
0.530
Why?
Developmental Disabilities
1
2017
22
0.520
Why?
Interviews as Topic
3
2024
203
0.510
Why?
Diagnostic Tests, Routine
1
2017
59
0.510
Why?
Focus Groups
5
2024
196
0.490
Why?
Qualitative Research
6
2024
321
0.460
Why?
Developing Countries
3
2023
400
0.420
Why?
Delivery of Health Care
5
2023
239
0.420
Why?
Information Services
1
2013
4
0.410
Why?
Maternal Welfare
1
2013
9
0.410
Why?
Infant
9
2024
2244
0.410
Why?
Cohort Studies
5
2024
967
0.410
Why?
Motivation
3
2024
59
0.410
Why?
Community Health Services
5
2024
58
0.400
Why?
Pilot Projects
5
2025
179
0.400
Why?
Behavior Therapy
2
2022
11
0.400
Why?
Viral Load
4
2024
819
0.390
Why?
Mentors
4
2014
16
0.390
Why?
Child Health
2
2023
77
0.380
Why?
Efficiency, Organizational
1
2012
5
0.380
Why?
Global Health
3
2021
193
0.370
Why?
Pregnancy Complications, Infectious
5
2014
529
0.350
Why?
Pregnancy
8
2024
1862
0.350
Why?
Cross-Sectional Studies
6
2024
1422
0.340
Why?
Blood Glucose
2
2024
107
0.340
Why?
HIV
2
2024
380
0.340
Why?
Public Health
2
2022
124
0.340
Why?
Community Health Workers
2
2023
66
0.310
Why?
Child
7
2023
2242
0.300
Why?
Maternal Health Services
3
2014
52
0.290
Why?
Goals
2
2024
7
0.270
Why?
CD4 Lymphocyte Count
4
2022
656
0.260
Why?
Adiposity
2
2018
96
0.260
Why?
Medication Adherence
2
2025
151
0.260
Why?
Exercise
2
2020
205
0.250
Why?
Aged
3
2024
1740
0.240
Why?
Ambulatory Care Facilities
2
2024
125
0.240
Why?
Social Support
2
2024
77
0.230
Why?
Patient Acceptance of Health Care
4
2024
256
0.230
Why?
Nepal
1
2024
6
0.220
Why?
Proof of Concept Study
1
2024
13
0.220
Why?
Dried Blood Spot Testing
1
2024
24
0.220
Why?
Reference Standards
1
2024
29
0.220
Why?
Blood Glucose Self-Monitoring
1
2024
4
0.220
Why?
Cholesterol
1
2024
38
0.210
Why?
Bayes Theorem
1
2024
81
0.210
Why?
Self Report
1
2024
114
0.210
Why?
Prevalence
5
2024
1192
0.210
Why?
Motivational Interviewing
1
2024
10
0.210
Why?
Radiographic Image Enhancement
1
2023
2
0.210
Why?
Social Stigma
1
2024
80
0.210
Why?
Intelligence
1
2023
6
0.210
Why?
Language
1
2023
14
0.200
Why?
Family Characteristics
2
2024
135
0.200
Why?
Epidemics
1
2023
65
0.200
Why?
Social Sciences
1
2022
1
0.200
Why?
Biomarkers
1
2024
327
0.190
Why?
Primary Health Care
1
2024
240
0.190
Why?
Socioeconomic Factors
3
2019
411
0.180
Why?
Urban Population
3
2018
257
0.170
Why?
Infectious Disease Transmission, Vertical
2
2014
472
0.160
Why?
Psychomotor Performance
2
2017
12
0.160
Why?
Movement
1
2020
5
0.160
Why?
Time-to-Treatment
1
2020
42
0.160
Why?
Zambia
2
2017
115
0.160
Why?
Videotape Recording
1
2019
2
0.160
Why?
Comprehension
1
2019
5
0.160
Why?
Wearable Electronic Devices
1
2019
4
0.160
Why?
Ethics, Research
1
2019
6
0.160
Why?
Mother-Child Relations
1
2019
20
0.150
Why?
Family
1
2019
35
0.150
Why?
Health Care Surveys
1
2019
30
0.150
Why?
Uganda
4
2021
197
0.150
Why?
Home Care Services
1
2018
15
0.150
Why?
Costs and Cost Analysis
1
2018
42
0.140
Why?
Infant, Newborn
5
2020
1479
0.140
Why?
Menarche
1
2018
13
0.140
Why?
AIDS Serodiagnosis
1
2018
44
0.140
Why?
Leg
1
2018
21
0.140
Why?
Peer Group
3
2014
14
0.140
Why?
Medication Therapy Management
1
2017
5
0.140
Why?
Anthropometry
1
2018
102
0.140
Why?
Hyperglycemia
1
2017
15
0.140
Why?
Models, Theoretical
1
2017
80
0.130
Why?
Government Employees
1
2017
3
0.130
Why?
Social Class
1
2017
73
0.130
Why?
Research
1
2017
65
0.130
Why?
HIV-1
1
2024
1260
0.130
Why?
Intimate Partner Violence
1
2016
55
0.120
Why?
Risk Factors
2
2017
1475
0.120
Why?
Circumcision, Male
1
2016
99
0.110
Why?
Child Abuse, Sexual
1
2014
4
0.110
Why?
Community Networks
1
2014
13
0.110
Why?
Obesity
1
2017
367
0.110
Why?
Social Networking
2
2024
8
0.110
Why?
Health Behavior
2
2014
79
0.110
Why?
User-Computer Interface
1
2013
6
0.100
Why?
Analysis of Variance
1
2013
64
0.100
Why?
Antiretroviral Therapy, Highly Active
1
2016
472
0.100
Why?
Lesotho
2
2023
6
0.100
Why?
Hypertension
1
2017
419
0.100
Why?
Treatment Outcome
4
2020
889
0.100
Why?
Sexual Behavior
1
2014
320
0.100
Why?
Efficiency
1
2012
3
0.100
Why?
Electronic Health Records
1
2012
10
0.090
Why?
Benchmarking
1
2012
10
0.090
Why?
Quality of Health Care
1
2012
62
0.090
Why?
Randomized Controlled Trials as Topic
2
2022
244
0.090
Why?
Group Processes
1
2011
3
0.090
Why?
Pandemics
2
2023
296
0.080
Why?
Time Factors
3
2020
507
0.080
Why?
Postnatal Care
3
2014
13
0.080
Why?
Africa
2
2023
376
0.070
Why?
Waist Circumference
2
2018
60
0.070
Why?
Prenatal Care
3
2014
147
0.070
Why?
Health Knowledge, Attitudes, Practice
3
2014
262
0.060
Why?
National Institute of Mental Health (U.S.)
2
2014
3
0.060
Why?
Substance-Related Disorders
1
2024
51
0.060
Why?
Organizational Culture
1
2024
7
0.050
Why?
Bias
1
2024
15
0.050
Why?
United States
2
2014
132
0.050
Why?
Leadership
1
2024
23
0.050
Why?
Blood Alcohol Content
1
2024
1
0.050
Why?
Trust
1
2024
9
0.050
Why?
Predictive Value of Tests
1
2024
188
0.050
Why?
Interpersonal Relations
1
2024
43
0.050
Why?
Specimen Handling
1
2024
105
0.050
Why?
Reproducibility of Results
1
2024
217
0.050
Why?
Radiography
1
2023
80
0.050
Why?
Sensitivity and Specificity
1
2024
385
0.050
Why?
Single-Blind Method
1
2022
17
0.050
Why?
Immunoglobulin G
1
2024
231
0.050
Why?
Men
1
2023
15
0.050
Why?
Health Services
1
2023
51
0.050
Why?
Antibodies, Viral
1
2024
284
0.050
Why?
Cluster Analysis
2
2014
65
0.050
Why?
Risk Reduction Behavior
2
2014
39
0.050
Why?
Multicenter Studies as Topic
1
2022
22
0.050
Why?
Adaptation, Psychological
2
2012
26
0.040
Why?
Computers, Handheld
1
2021
2
0.040
Why?
Remote Consultation
1
2001
2
0.040
Why?
Tuberculosis, Pulmonary
1
2024
324
0.040
Why?
Diagnostic Techniques, Ophthalmological
1
2001
3
0.040
Why?
Men's Health
1
2020
3
0.040
Why?
Reward
1
2020
2
0.040
Why?
Continuity of Patient Care
1
2020
33
0.040
Why?
Stakeholder Participation
1
2020
9
0.040
Why?
HIV Seroprevalence
1
2018
15
0.040
Why?
Body Height
1
2018
52
0.030
Why?
Chronic Disease
1
2018
107
0.030
Why?
Isoniazid
1
2018
110
0.030
Why?
Age Factors
1
2018
370
0.030
Why?
Prospective Studies
1
2020
1160
0.030
Why?
Problem Solving
1
2016
3
0.030
Why?
Overweight
1
2017
87
0.030
Why?
Psychometrics
1
2016
22
0.030
Why?
Sex Characteristics
1
2016
43
0.030
Why?
Educational Status
1
2016
68
0.030
Why?
Communication
1
2016
57
0.030
Why?
Body Mass Index
1
2017
321
0.030
Why?
Referral and Consultation
1
2016
57
0.030
Why?
Caregivers
1
2016
76
0.030
Why?
Aging
1
2016
109
0.030
Why?
Random Allocation
1
2014
23
0.030
Why?
Directive Counseling
1
2014
15
0.030
Why?
Tanzania
1
2014
88
0.030
Why?
Zimbabwe
1
2014
120
0.030
Why?
Program Evaluation
1
2014
89
0.030
Why?
Interview, Psychological
1
2012
6
0.020
Why?
Alcoholic Intoxication
1
2011
3
0.020
Why?
Marital Status
1
2011
11
0.020
Why?
Risk-Taking
1
2011
121
0.020
Why?
Telecommunications
1
2001
1
0.010
Why?
Ophthalmology
1
2001
3
0.010
Why?
Hospitals, Special
1
2001
4
0.010
Why?
Interinstitutional Relations
1
2001
7
0.010
Why?
Hospitals, District
1
2001
5
0.010
Why?
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Concepts (226)
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Co-Authors (13)
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