Abstract Background Autoimmune bullous diseases (ABDs) are a rare but significant group of dermatoses that pose great challenges to the treating dermatologist. Most epidemiological studies have focused on single ABD. Few surveys been carried out describe whole spectrum ABDs in region, and no such available from Arabian Peninsula. Objectives To determine clinico‐epidemiological features various Kuwait, compare results with those reported elsewhere. Methods A total 128 cases were studied over...

This paper covers the analysis of behavior columns made LWAC (Lightweight Aggregate Concrete), which can be used as a substitute for normal-density concrete. work presents an experimental research program focused on second-order effects in slender elements (λ = 74) and concrete tested under eccentric load. Elements with two ratios longitudinal reinforcement (0.9%, 2.3%) were considered. Despite similar compressive strengths concrete, significantly different moduli elasticity types caused...

This paper discusses the possibility of determining k-values for active admixtures concerning durability factors such as depth penetration water under pressure and carbonation cement mortars with fly ash. The k-value considers use in concrete when calculating water/cement ratio equivalent amount binder. Currently, only effect admixture on compressive strength is considered k-value, but not durability. To account influence determination mathematical functions property, dependent age mortar,...

Although pemphigus is a well-characterized entity, detailed epidemiologic studies from the Arabian Peninsula are not available. The purpose of this study was to elucidate clinical features, course, and prognosis patients followed at national dermatology center in Kuwait.Fifty-four with report were treated between 1981 1996, studied for several treatment, course prognosis.Around 80% Arabs, Kuwaitis constituted largest number (46.3%) female predominance (F: M = 2:1). Pemphigus vulgaris (PV)...

This study investigates the relationships between hydration kinetics of waterglass-activated slag and development its physical-mechanical properties, as well color change. To modify calorimetric response alkali-activated slag, hexylene glycol was selected from various alcohols for in-depth experiments. In presence glycol, formation initial reaction products restricted to surface, which drastically slowed down further consumption dissolved species dissolution consequently delayed bulk by...

The clinicoepidemiological characteristics and course of bullous pemphigoid (BP) have not been described in populations from the Arabian Gulf. Hypothesis. Ethnic regional variations can influence clinical behaviour autoimmune diseases.In this study, 43 patients with BP, registered our diseases (ABD) clinic over a span 14 years, were studied to determine features disease region.BP was observed be second commonest ABD (27%), minimum estimated incidence 2.6 cases/million/year among referral...

Abstract: Linear IgA bullous disease of childhood is a rare autoimmune blistering disease. We report eight patients with this seen in our diseases clinic over span 12 years. They constituted 89% the total number those linear during period, an age‐adjusted minimum estimated incidence 2.3 cases/million population/year. Males outnumbered females by 1.7:1 ratio. The age at onset ranged between 10.5 months and 13 years, mean 6.8 ± 4.17 majority (62.5%) had moderately severe Fifty percent were...

This article presents research on the behavior of cement-bonded particleboards under mechanical stress caused by static load. The composition boards was modified using alternative raw materials-dust (DU) forming during processing cement-fibre and particle mixture (PM) generated in production particleboards. (1-year-old) were subjected to an adverse environment (100 250 frost cycles). Mechanical parameters tested, development defects load bending analyzed acoustic emission. Particleboards...

The study of the resistance plain concrete to high temperatures is a current topic across field civil engineering diagnostics. It type damage that affects all components in complex way, and there are many ways describe diagnose this degradation process resulting condition concrete. With regard temperatures, phenomena such as explosive spalling or partial creep material may occur. thermally degraded can be assessed by number destructive nondestructive methods based on either physical chemical...

Pemphigoid gestationis (PG) is a rare autoimmune disease of pregnancy. We report series 22 cases PG in Kuwait. They constituted 18% all the bullous diseases registered our centre over span 11 years. was observed to be third most common region. Ninety-five per cent patients were Arab ethnicity. The clinical features comparable those reported elsewhere. Systemic steroids (prednisolone 20-60 mg daily) remained mainstay treatment control active and an optimal dose 20 prednisolone maintained...

The cured-in-place pipe (CIPP) method is currently the most frequently used approach for renovation of piping without digging; this technology suitable pipes made from all types material. authors paper examined how chemical substances and increased temperature change samples CIPP with vinyl-ester resin taken a simulated installation. Changes were observed at several levels: visually via digital optical microscope, through changes short-term bending properties by observation activity sample...

Historical buildings and monuments are largely made of brickwork. These form the historical artistic character cities, how we look after them is a reflection our society. When assessing ceramic products, great emphasis placed on their mechanical properties, whilst durability often neglected. However, or resistance to weathering masonry elements just as important properties. Therefore, this work deals with predicting solid-fired bricks before they used when reconstructing buildings....

Abstract The resistance of alkali-activated materials (AAMs) to degradation processes, particularly the decalcification, was studied in this paper. ground granulated blast furnace slag using various activators with same activator dosage 6% Na 2 O by weight (sodium hydroxide, sodium waterglass and carbonate) subjected testing decalcification (immersion 6M NH 4 NO 3 ) for 84 days. reference samples were stored water. progress phenolphthalein technique, mechanical properties (compressive...

The hardened mechanical properties of 3D-printed compounds are an important factor for the future design such structures. disparities between casted and concrete can be attributed to variations in compaction levels multi-layered nature entire system. Both these issues influence final element. Additionally, printing process may hindered by composition mixture, particularly when fibers present, as they alter pump output relationship layers. This paper discusses impact different layer...

Sewage and water networks are crucial infrastructures of modern urban society. The uninterrupted functionality these is paramount, necessitating regular maintenance rehabilitation. In densely populated areas, trenchless methods, particularly those employing cured-in-place pipe technology, have emerged as the most cost-efficient approach for network Common diagnostic methods assessing conditions, whether original or retrofitted with-cured-in-place pipes, typically include camera examination...

The paper is concerned with the technical aspects of appraisal and retrofitting process fire damaged reinforced concrete structures. assessment structures carried out along lines similar to those existing In practice, constructions are most often assessed by destructive tests in-situ on core bore specimens. addition tests, also non-destructive ones. present shows use methods measurement using acoustic-emission impact-echo methods. Acoustic emission provides valuable data structural integrity...