Publications by authors named "M Haist"
Calcined clays (CCs) as supplementary cementitious materials (SCMs) can be a promising option to reduce clinker content and CO emissions in eco-friendly concretes. Although CCs as components of composite cements in combination with Ordinary Portland Cement (OPC) and limestone powder (LSP) have attracted industry interest, their use as concrete additives is limited. This study investigates the effects of the addition of CCs on the fresh and hardened properties of industry-standard ready-mixed concretes.
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- The study explores how the size of binder particles and the use of chemical additives affect the early strength and stiffness of eco-friendly mortars made with low clinker content and mixed cements that include high amounts of slag and limestone.
- By adjusting the particle size of the slag and using nano-granular C-S-H seeds, researchers found notable improvements in compressive strength—up to 162% in the first 24 hours—and rapid hydration effects within just 6 hours of mixing.
- The findings suggest that optimizing particle size and increasing C-S-H admixture levels enhance early mortar strength, allowing for a reduced use of clinker while still achieving a strong binder performance.
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- Skin cancer cases are on the rise, and in 2015, Germany made a law to let patients ask for a second medical opinion about their diagnosis and treatment.
- A study with 714 patients found that most people seeking a second opinion were diagnosed with the most serious kind of skin cancer, and they wanted more information and reassurance about their treatment.
- The results showed that getting a second opinion was helpful for patients, especially those who felt they had less control over their situation, and younger patients with more advanced cancer experienced more disruption in their daily lives.
Lichen planopilaris (LPP) is an inflammatory cicatricial alopecia characterized by an irreversible destruction of the hair follicle resulting in its permeant destruction. The clinical presentation of LPP is a progressive patchy scarring alopecia. A variety of systemic agents is used to treat LPP with varying success.
View Article and Find Full Text PDFMycosis fungoides (MF) is the most common entity of Cutaneous T cell lymphomas (CTCL) and is characterized by the presence of clonal malignant T cells in the skin. The role of the skin microbiome for MF development and progression are currently poorly understood. Using shotgun metagenomic profiling, real-time qPCR, and T cell receptor sequencing, we compared lesional and nonlesional skin of 20 MF patients with early and advanced MF.
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