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Raman imaging reveals in-situ microchemistry of cuticle and epidermis of spruce needles

The cuticle is a protective layer playing an important role in plant defense against biotic and abiotic stresses. So far cuticle structure and chemistry was mainly studied by electron microscopy and chemical extraction. Thus, analysing composition involved sample destruction and the link between chemistry and microstructure remained unclear. In the last decade, Raman imaging...

Stigma and HIV service access among transfeminine and gender diverse women in South Africa – a narrative analysis of longitudinal qualitative data from the HPTN 071 (PopART) trial

You can also search for this author in PubMed Google Scholar Anne Stangl View author publications You can also search for this author in PubMed Google Scholar Peter Bock View author publications ... , Stellenbosch University, K-Floor, Clinical Building, Tygerberg Campus, Francie van Zyl Drive, Tygerberg, Cape Town, 7505, South Africa Laing de Villiers, Angelique Thomas, Dionne Jivan, Graeme Hoddinott & Peter

Evaluation of multi-assay algorithms for identifying individuals with recent HIV infection: HPTN 071 (PopART)

, Barry Kosloff, Kwame Shanaube, Peter Bock, Nomtha Mandla, Anneen van Deventer, Sarah Fidler, Deborah Donnell, Richard Hayes, Susan H. Eshleman. 12 / 14 Prevention Trials Network 064 Study. J Infect Dis ... . Eshleman. Project administration: Sarah Fidler, Richard Hayes, Susan H. Eshleman. Supervision: Oliver Laeyendecker, Estelle Piwowar-Manning, William Clarke, Ayana Moore, Helen Ayles, Barry Kosloff, Peter

Following laser induced changes of plant phenylpropanoids by Raman microscopy

Natural Resources and Life Sciences, Muthgasse 11/II, 1190, Vienna, AustriaBatirtze Prats-Mateu, Peter Bock, José Luis Toca-Herrera & Notburga GierlingerInstitute of Biologically inspired materials ... journals • PubMed • Google Scholar Search for Peter Bock in:Nature Research journals • PubMed • Google Scholar Search for Martina Schroffenegger in:Nature Research journals • PubMed • Google Scholar

How ‘place’ matters for addressing the HIV epidemic: evidence from the HPTN 071 (PopART) cluster-randomised controlled trial in Zambia and South Africa

In a cluster-randomised trial (CRT) of combination HIV prevention (HPTN 071 (PopART)) in 12 Zambian communities and nine South African communities, carried out from 2012 to 2018, the intervention arm A that offered HIV treatment irrespective of CD4 count did not have a significant impact on population level HIV incidence. Intervention arm B, where HIV incidence was reduced by 30...

HIV-1 RNA testing of pooled dried blood spots is feasible to diagnose acute HIV infection in resource limited settings

Objectives:Rapid human immunodeficiency virus (HIV) antibody tests, routinely used for diagnosis in adults and older children in resource-limited settings (RLS), do not detect early HIV infections prior to seroconversion or when antibody levels are still low. Nucleic acid amplification to detect HIV-1 RNA is the most sensitive method for acute HIV infection diagnosis, but is...

Reliability of the Radiographic Sagittal and Frontal Tibiotalar Alignment after Ankle Arthrodesis

Background Accurate measurement of the tibiotalar alignment is important in radiographic outcome assessment of ankle arthrodesis (AA). In studies, various radiological methods have been used to measure the tibiotalar alignment leading to facultative misinterpretation of results. However, to our knowledge, no previous study has investigated the reliability of tibiotalar alignment...

Attrition when providing antiretroviral treatment at CD4 counts >500cells/μL at three government clinics included in the HPTN 071 (PopART) trial in South Africa

author Dr Peter Bock. Email: . Access to these data can be achieved through the same process completed by the authors, namely, submission of an application to the three entities listed above. Contact ... Centre Stellenbosch University, Peter Bock, Desmond Tutu TB Centre Stellenbosch University, Virginia Bond, London School of Hygiene & Tropical Medicine, ZAMBART, Lisa Bunts, SCHARP-FHCRC Seattle, David

Towards 90-90: Findings after two years of the HPTN 071 (PopART) cluster-randomized trial of a universal testing-and-treatment intervention in Zambia

, Helen Ayles, Albertus Schaap, Kwame Shanaube, David Mac Leod, Mwelwa Phiri, Sam Griffith, Peter Bock, Nulda Beyers, Sarah Fidler, Richard Hayes. Data curation: Sian Floyd, Albertus Schaap, David MacLeod ... Bock. Methodology: Sian Floyd, Helen Ayles, Albertus Schaap, David MacLeod, Sarah Fidler, Richard Hayes. Project administration: Helen Ayles, Kwame Shanaube, Mwelwa Phiri, Sam Griffith, Peter Bock

Better Antiretroviral Therapy Outcomes at Primary Healthcare Facilities: An Evaluation of Three Tiers of ART Services in Four South African Provinces

Peter Bock 0 Cesar Augusto Ugarte-Gil, Instituto de Medicina Tropical Alexander Von Humboldt, Peru 0 1 Kheth'Impilo, Cape Town, South Africa, 2 Lung Clinical Research Unit, University of Cape Town Lung

HPTN 071 (PopART): Rationale and design of a cluster-randomised trial of the population impact of an HIV combination prevention intervention including universal testing and treatment – a study protocol for a cluster randomised trial

protocol for a cluster randomised trial Richard Hayes 0 Helen Ayles Nulda Beyers Kalpana Sabapathy 0 Sian Floyd 0 Kwame Shanaube Peter Bock Sam Griffith Ayana Moore Deborah Watson-Jones Christophe Fraser

HPTN 071 (PopART): Rationale and design of a cluster-randomised trial of the population impact of an HIV combination prevention intervention including universal testing and treatment – a study protocol for a cluster randomised trial

Effective interventions to reduce HIV incidence in sub-Saharan Africa are urgently needed. Mathematical modelling and the HIV Prevention Trials Network (HPTN) 052 trial results suggest that universal HIV testing combined with immediate antiretroviral treatment (ART) should substantially reduce incidence and may eliminate HIV as a public health problem. We describe the rationale...