L. J. Chalkley

1.2k total citations
31 papers, 841 citations indexed

About

L. J. Chalkley is a scholar working on Epidemiology, Infectious Diseases and Public Health, Environmental and Occupational Health. According to data from OpenAlex, L. J. Chalkley has authored 31 papers receiving a total of 841 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Epidemiology, 16 papers in Infectious Diseases and 6 papers in Public Health, Environmental and Occupational Health. Recurrent topics in L. J. Chalkley's work include Pneumonia and Respiratory Infections (13 papers), Antimicrobial Resistance in Staphylococcus (10 papers) and Antibiotic Resistance in Bacteria (6 papers). L. J. Chalkley is often cited by papers focused on Pneumonia and Respiratory Infections (13 papers), Antimicrobial Resistance in Staphylococcus (10 papers) and Antibiotic Resistance in Bacteria (6 papers). L. J. Chalkley collaborates with scholars based in South Africa, Germany and Denmark. L. J. Chalkley's co-authors include H J Koornhof, H. J. Koornhof, Regine Hakenbeck, F. J. Lourens Robberts, Claus Sibold, Andrea König, J Henrichsen, Kim Stanley, Thomas Briese and Cristina Latorre and has published in prestigious journals such as Journal of Clinical Microbiology, The Journal of Infectious Diseases and Antimicrobial Agents and Chemotherapy.

In The Last Decade

L. J. Chalkley

31 papers receiving 807 citations

Peers

Countries citing papers authored by L. J. Chalkley

Since Specialization

Citations

This map shows the geographic impact of L. J. Chalkley's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by L. J. Chalkley with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites L. J. Chalkley more than expected).

Fields of papers citing papers by L. J. Chalkley

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by L. J. Chalkley. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by L. J. Chalkley. The network helps show where L. J. Chalkley may publish in the future.

Co-authorship network of co-authors of L. J. Chalkley

This figure shows the co-authorship network connecting the top 25 collaborators of L. J. Chalkley. A scholar is included among the top collaborators of L. J. Chalkley based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with L. J. Chalkley. L. J. Chalkley is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Effects of various food ingredients on gall bladder emptying 2013 ·European Journal of Clinical Nutrition ·Luca Marciani, Eleanor Cox, Caroline L. Hoad, John J. Totman, Carolyn Costigan, G. Singh, (unknown), L. J. Chalkley, (unknown), (unknown), Penny Gowland, Robert E. Spiller	40
2	Antibiotic susceptibilities and resistance genes of Ureaplasma parvum isolated in South Africa 2012 ·Journal of Antimicrobial Chemotherapy ·(unknown), (unknown), (unknown), (unknown), L. J. Chalkley	19
3	Tetracycline resistance genes of ureaplasmas 2012 ·Southern African Journal of Epidemiology and Infection ·(unknown), L. J. Chalkley	5
4	Prevalence of genital mycoplasmas, ureaplasmas andchlamydiain pregnancy 2009 ·Journal of Obstetrics and Gynaecology ·(unknown), Gerhard Theron, H J Odendaal, L. J. Chalkley	19
5	Polymerase chain reaction detection of Pneumocystis jiroveci: evaluation of 9 assays 2007 ·Diagnostic Microbiology and Infectious Disease ·F. J. Lourens Robberts, (unknown), L. J. Chalkley	55
6	The association between Chlamydia trachomatis genital infection and spontaneous preterm labour 2006 ·South African Medical Journal ·H J Odendaal, (unknown), D Grové, M de Jager, Gerhard Theron, (unknown), (unknown), L. J. Chalkley	12
7	Comparative Activity of Eighteen Antimicrobial Agents against Anaerobic Bacteria Isolated in South Africa 1999 ·European Journal of Clinical Microbiology & Infectious Diseases ·(unknown), (unknown), L. J. Chalkley	19
8	Prevalence ofnimgenes in anaerobic/facultative anaerobic bacteria isolated in South Africa 1999 ·FEMS Microbiology Letters ·(unknown), Kim Stanley, L. J. Chalkley	35
9	Plasmid analysis of Neisseria gonorrhoeae isolates and dissemination of tetM genes in southern Africa 1993-1995 1997 ·Journal of Antimicrobial Chemotherapy ·L. J. Chalkley	21
10	Relatedness Among Penicillin-Binding Protein 2b Genes of Streptococcus mitis , Streptococcus oralis , and Streptococcus pneumoniae 1995 ·Microbial Drug Resistance ·(unknown), L. J. Chalkley	17
11	Mosaic pbpX genes of major clones of penicillin‐resistant Streptococcus pneumoniae have evolved from pbpX genes of a penicillin‐sensitive Streptococcus oralis 1994 ·Molecular Microbiology ·Claus Sibold, J Henrichsen, Andrea König, (unknown), L. J. Chalkley, Regine Hakenbeck	109
12	In vitro antimicrobial susceptibility of viridans streptococci isolated from blood cultures 1992 ·European Journal of Clinical Microbiology & Infectious Diseases ·(unknown), (unknown), H. J. Koornhof, L. J. Chalkley	52
13	Antigenic Variation of Penicillin-Binding Proteins from Penicillin-Resistant Clinical Strains of Streptococcus pneumoniae 1991 ·The Journal of Infectious Diseases ·Regine Hakenbeck, Thomas Briese, L. J. Chalkley, Heinz Ellerbrok, (unknown), Cristina Latorre, M. Leinonen, Carine Martin	61
14	Relatedness between Streptococcus pneumoniae and viridans streptococci: transfer of penicillin resistance determinants and immunological similarities of penicillin-binding proteins 1991 ·FEMS Microbiology Letters ·L. J. Chalkley	26
15	Variability of Penicillin-Binding Proteins from Penicillin-Sensitive Streptococcus pneumoniae 1991 ·The Journal of Infectious Diseases ·Regine Hakenbeck, Thomas Briese, L. J. Chalkley, Heinz Ellerbrok, (unknown), Cristina Latorre, M. Leinonen, Carine Martin	26
16	Intra- and inter-specific transformation of Streptococcus pneumoniae to penicillin resistance 1990 ·Journal of Antimicrobial Chemotherapy ·L. J. Chalkley, H. J. Koornhof	31
17	Penicillin-binding proteins of Streptococcus pneumoniae 1988 ·Journal of Antimicrobial Chemotherapy ·L. J. Chalkley, H J Koornhof	18
18	Plasmids in clinical isolates ofStreptococcus pneumoniae 1988 ·Current Microbiology ·L. J. Chalkley, H. J. Koornhof	5
19	In vitro selection of bacteria resistant to LY146032, a new cyclic lipopeptide 1988 ·Antimicrobial Agents and Chemotherapy ·L D Liebowitz, (unknown), L. J. Chalkley, H. J. Koornhof	19
20	Effect of mycolase and amphotericin B onCandida albicansandCandida pseudotropicalis in vitroandin vivo 1985 ·Medical Mycology ·L. J. Chalkley, Anthony P. J. Trinci, Alfred Pope	8

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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