Partial replacement and co-hydration of calcium aluminate cement (CAC) with ladle slag was investigated in this study as a pathway valorizing the reducing economic cost CAC. The impact on physical microstructural properties were analysed using different techniques such mechanical strength test, freeze-thaw, sulfate attack, XRD, SEM etc. Thermodynamic modelling used to predict phase assemblages ...

Background: Sperm storage via freezing has been useful for men who have difficulty masturbating during assisted reproductive technology (ART) programs and before impotency caused by chemotherapy, vasectomy, and other procedures. Studies were undertaken to evaluate the extent of cryoinjury to both semen and sperm after repeated freezing and thawing in oligozoospermic and normozoospermic samples ...

Extracellular miRNAs are detectable in biofluids and represent a novel class of disease biomarker. Although many studies have utilized archived plasma for miRNA biomarker discovery, the effects of processing and storage have not been rigorously studied. Previous reports have suggested plasma samples are commonly contaminated by platelets, significantly confounding the measurement of extracellul...

This article focuses on the effect of freeze–thaw cycling a cement-based early-strength anchor material, compressive strength which at 24 h is 14 times that ordinary cement, and 7 twice cement. The setting time required to achieve expected 1/7 Through indoor tests, appearance changes, quality loss, microstructure changes in after 0, 5, 15, 25, 50, 75, 100 cycles were studied, revealing evolutio...

In the arid and semi-arid regions of Loess Plateau, seasonal freezing thawing influence soil water movement, movement directly influences vegetation growth. However, currently, research with regard to processes under various types mechanism is lacking. Therefore, present study explored migration characteristics two typical [arbor land (AL) shrub (SL)] on Plateau during using bare (BL) as a cont...

BACKGROUND Creating appropriately-sized, lethal isotherms during cryoablation of renal tumors is critical in order to achieve sufficiently-sized zones of cell death. To ensure adequate cell death in target treatment locations, surgeons must carefully select the type, size, location, and number of probes to be used, as well as various probe operating parameters. OBJECTIVE The current study inv...

This study presents a kinematic model for flexural analysis of RC beams and columns subjected to freeze-thaw action based on upper bound theorem. The developed enables analytical derivation the contribution damaged concrete when actual deterioration profile is idealized as an assemblage undamaged zones depth obtained from core specimens. accuracy verified by comparing its predictions with avail...

METHODS Ten patients (70% men; median age: 38 years [range: 34 to 45 years]) with drug-refractory premature ventricular contractions or ventricular tachycardia underwent catheter cryoablation. VAs were localized using 3-dimensional (3D) mapping, multidetector computed tomography, and intracardiac echocardiography, with arrhythmia foci being mapped at either the anterolateral PM or posteromedial...

AIM The aim of this study was to investigate the effect of incubation on freezability of cholesterol loaded cyclodextrin (CLC) treated buffalo spermatozoa. MATERIALS AND METHODS Semen samples with mass motility of 3+ and greater, collected from Murrah buffalo bulls were utilized. Immediately after collection, four equal groups of semen sample were made. Group I was kept as control and diluted...

background: cystic hydatid disease is an important zoonosis, affecting humans and animals and is a significant public health and economic problem throughout the world and iran. since extraction of dna from the parasite is a primary and crucial step which has a principal effect on pcr results, in the current study five simple methods for dna extraction from protoscoleces of echinococcus granulos...