Experimental Investigation of the TRM-to-Masonry Bond after Exposure to Elevated Temperatures: Cementitious and Alkali-Activated Matrices of Various Densities

Limited research has focused on the effect of high temperatures on the textile-reinforced mortar (TRM)-to-masonry bond. In this study, masonry prisms that were furnished with double-layered TRM strips were tested under shear bond conditions after their exposure to 200 °C and 400 °C for 1 h using the single-lap/single-prism setup. A total of four TRM systems were applied sharing the same type of textile –a dry AR glass fiber one– and different matrices: two cementitious matrices, namely a normal-weight (TRCNM) and a lightweight (TRCLM) one, and two counterpart alkali-activated matrices (TRAANM and TRAALM) based on metakaolin and fly ash. Specimens’ exposure to elevated temperatures did not alter their failure mode which was due to the sleeve fibers’ rupture along with core fibers’ slippage from the mortar. The residual bond capacity of the TRM systems decreases almost linearly with increasing exposure temperature. The alkali-activated textile reinforced mortars outperformed their cement-based counterparts in terms of bond strength at every temperature. All systems retained close to 50% of their original shear bond strength after heating at 400 °C. Per the type of binder, lightweight matrices resulted in either comparable (cement-based systems) or better (alkali-activated systems) heat protection at the TRM/masonry interface.

Sun Safety at Work Canada: a multiple case-study protocol to develop sun safety and heat protection programs and policies for outdoor workers

Sun Safety at Work Canada: a multiple case-study protocol to develop sun safety and heat protection programs and policies for outdoor workers

Sun Safety at Work Canada: a multiple case-study protocol to develop sun safety and heat protection programs and policies for outdoor workers

Sun Safety at Work Canada: a multiple case-study protocol to develop sun safety and heat protection programs and policies for outdoor workers

Hot days and Covid-19 – unusual heat stress for nursing professions in Germany

ObjectivesOur aim was to identify whether working during hot days alongside with Covid-19 related personal protective equipment causes heat stress for nursing professionals in Germany.MethodsUsing an online survey, we assessed the impact of hot weather on nursing staff performing in personal protective equipment. A random selection of nursing staff from hospitals, nursing homes and outpatient care participated in the survey.ResultsOut of 428 participants, 6.3% were between 16 and 25 years old, 22.8% between 26 and 35 years, 21.9% between 36 and 45 years, 30.5% between 45 and 55 years, 18.2% between 56 and 65 years, and 0.3% were older than 65 years. Out of all participants, 18.2% were male and 82.5% female. The results of the survey showed that 48.3% had more than 20 years of experience in nursing and 46.2% cardiac, pulmonary, or other pre-existing conditions. Work was found exhaustive while working in PPE by 96.5% of the participants, and 93% complained of worse breathing. We found out that 85.8% reported difficulties to focus. Many workplaces turned out to lack adequate heat protection, with distinct differences concerning the amount of prophylactic and heat mitigating measures across institutions.ConclusionsOur results clearly show that employers must make more of an effort to provide adequate heat protection for their nursing staff. In order to secure the public health care, there is a need for action, especially in the case of previous conditions of caregivers.What is already known about this subject?►Working in personal protective equipment is often needed during pandemics, to protect nurses, doctors and staff from an infection.►However, the equipment can also hamper efficiency and productivity of healthcare workers and lead to personal discomfort, for example, during heat waves.What are the new findings?►According to our study, nurses and nursing assistants in Germany are often older than 45 years and, in many cases, suffer from pre-existing conditions, which exacerbate the problems with personal protective equipment during periods of hot temperatures.►Many healthcare institutions do not offer adequate ways to mitigate heat stress for their staff.How might this impact on policy or clinical practice in the foreseeable future?►The results from this study can inform policy makers and clinical practitioners to modify their protocols to include better protective measures during extreme heat or other adverse environmental conditions.

Climate Responsive Design and Features Explore of Paul Rudolph’s Light Wood Residences

In the middle of the 20th century, Paul Rudolph’s design practice of light wood residences in Sarasota area was well adapted to the local hot and humid subtropical climate. By tracing the origin of Paul Rudolph’s thought of climate responsive design, it’s possible to realize the design features of Paul Rudolph’s early works from heat protection and ventilation, and sum up the strategies and construction of his light wood residences for climate responsive design. Based on the characteristics of subtropical heat and humidity, Rudolph focused on innovations in building facades, roofs, and spaces, and proposed a series of climate-responsive design strategies and methods. Rudolph’s light wood practice has its own value in terms of technical principles, material technology, and regional characteristics, which are both rational and perceptual, and has enlightening value for the application of light buildings in subtropical areas and the design of contemporary light wood buildings.

Insilico analysis of nucleotides compound associated with obesity- using bioinformatics tool bioperl

Stoutness is a constant complaint categorized by an overabundance sum muscle versus fat. A precise measure of muscle versus fat is significant for placing gone vitality, heat protection, stun retention, and different capacities. The standard measure of muscle versus fat (communicated as the level of muscle to fat ratio) is between 25%-30% in ladies and 18%-23% in men. Ladies with over 30% muscle to fat ratio and men with over 25% muscle versus fat are watched as fat. About ten qualities which are mostly dependable in causing the sickness are taken from Gene Cards information base. From the computational investigations like various grouping arrangement utilizing clustalW device, the nucleotide succession of LEP quality family is identified with one another. These qualities are then concentrated independently. Further, the preserved space investigation was completed from which the common areas in the family were chosen for the examinations. The preserved area designs present in this quality family were gotten from clustal W apparatus. This moderated designs demonstrated changes, interpretation and length at specific spots which were predominantly associated with causing the disorder. For the quicker investigation for the information of preserved spaces were taken in Bioperl programming.