Laparoscopic Versus Conventional Open Congenital Duodenal Obstruction Repair: A Systematic Review and Meta-analysis.

Background: We conducted a systematic review and meta-analysis to evaluate the safety and effectiveness of laparoscopic surgery (LS) compared to open surgery (OS) for congenital duodenal obstruction (CDO).

Methods: We conducted a literature review to find studies comparing LS and OS in neonates with CDO. A meta-analysis was conducted to systematically compile and compare factors, including surgical duration, time of feeding initiation, hospital length of stay (LOS), and postoperative complications.

Platelet-rich Plasma as an Adjuvant Therapy to Crystallized Phenol in the Treatment of Pediatric Pilonidal Sinus Disease: A Prospective Randomized Controlled Trial.

Objective: This study aims to evaluate the safety and efficacy of platelet-rich plasma (PRP) as an adjuvant to crystallized phenol (CP) in treating pediatric pilonidal sinus disease (PSD).

Methods: A single-center randomized controlled trial was conducted at Istanbul Esenyurt Hospital. Eighty-seven patients aged 0-18 were randomly assigned to two groups: the CP group (n = 42) and the CP + PRP group (n = 45).

Alisklamp versus Conventional Dorsal Slit Circumcision: A Multicentric Randomized Controlled Trial.

There are numerous methods of circumcision performed worldwide, typically classified into two main groups: conventional surgical techniques and various device-assisted techniques. Each method has its own advantages, limitations, and potential complications. The aim of this study was to compare outcomes of the Alisklamp technique versus the dorsal slit technique in male circumcision procedures.

Demolition Waste Potential for Completely Cement-Free Binders.

Due to renovation and fighting in the world, a huge accumulation of construction and demolition waste is formed. These materials are effectively used as aggregates, but there is very little information about the use of scrap concrete to create cementless binders. The purpose of the work is to be a comprehensive study of the composition and properties of concrete wastes of various fractions with the aim of their rational use as cementless binders.

Technogenic Fiber Wastes for Optimizing Concrete.

A promising method of obtaining mineral fiber fillers for dry building mixtures is the processing of waste that comes from the production of technogenic fibrous materials (TFM). The novelty of the work lies in the fact that, for the first time, basalt production wastes were studied not only as reinforcing components, but also as binder ones involved in concrete structure formation. The purpose of the article is to study the physical and mechanical properties of waste technogenic fibrous materials as additives for optimizing the composition of raw concrete mixes.

Study of the Properties of Antifriction Rings under Severe Plastic Deformation.

The paper studies the properties of brass workpieces for antifriction rings under severe plastic deformation by high-pressure torsion. The evolution of microstructure and mechanical properties of deformed workpieces after six cycles of deformation by high-pressure torsion at 500 °C have been studied. All metallographic studies were performed using modern methods: transmission electron microscopy (TEM) and analysis electron back scatter diffraction patterns (EBSD).

Modeling of Non-Ferrous Metallurgy Waste Disposal with the Production of Iron Silicides and Zinc Distillation.

This paper presents studies on the possibility of utilization of technogenic waste from the metallurgical industry by the method of complex processing in order to reduce the anthropogenic load on the environment of the region with the example of the zinc silicate-magnetite-carbon system. The selected sample of clinker dump from welting was subjected to chemical and scanning electron microscopic analyses and thermodynamic modeling. Thermodynamic studies were carried out in the temperature range 1600-2200 K and pressure = 0.

Improving the Durability of Lime Finishing Mortars by Modifying Them with Silicic Acid Sol.

Lime materials are in great demand for the restoration of the walls of historical buildings. However, lime coatings have insufficient resistance during operation. The purpose of this work was the modification of lime mortars with silicic acid sol in order to obtain more durable crystalline materials for construction purposes.

Compaction Characteristics and Permeability of Expansive Shale Stabilized with Locally Produced Waste Materials.

Waste is available in an abundant form and goes to landfill without any use, creating threats to the environment. Recent and past studies have used different types of waste to stabilize soil and reduce environmental impacts. However, there is a lack of studies on the combined use of marble dust, rice-husk ash, and saw dust in expansive shale soil.

Palm Oil Fuel Ash-Based Eco-Friendly Concrete Composite: A Critical Review of the Long-Term Properties.

Rapid global infrastructural developments and advanced material science, amongst other factors, have escalated the demand for concrete. Cement, which is an integral part of concrete, binds the various individual solid materials to form a cohesive mass. Its production to a large extent emits many tons of greenhouse gases, with nearly 10% of global carbon (IV) oxide (CO) emanating from cement production.

Fly Ash-Based Eco-Efficient Concretes: A Comprehensive Review of the Short-Term Properties.

Development of sustainable concrete as an alternative to conventional concrete helps in reducing carbon dioxide footprint associated with the use of cement and disposal of waste materials in landfill. One way to achieve that is the use of fly ash (FA) as an alternative to ordinary Portland cement (OPC) because FA is a pozzolanic material and has a high amount of alumina and silica content. Because of its excellent mechanical properties, several studies have been conducted to investigate the use of alkali-activated FA-based concrete as an alternative to conventional concrete.

Application of Plastic Wastes in Construction Materials: A Review Using the Concept of Life-Cycle Assessment in the Context of Recent Research for Future Perspectives.

The urbanization process contributes to the growth of solid waste generation and causes an increase in environmental impacts and failures in the management of solid waste. The number of dumps is a concern due to the limited implementation and safe disposal of this waste. The interest in sustainable techniques has been growing in relation to waste management, which is largely absorbed by the civil construction sector.

A Critical Review on the Properties and Applications of Sulfur-Based Concrete.

The incessant demand for concrete is predicted to increase due to the fast construction developments worldwide. This demand requires a huge volume of cement production that could cause an ecological issue such as increasing the rates of CO emissions in the atmosphere. This motivated several scholars to search for various alternatives for cement and one of such alternatives is called sulfur-based concrete.

Fibre-Reinforced Foamed Concretes: A Review.

Foamed concrete (FC) is a high-quality building material with densities from 300 to 1850 kg/m, which can have potential use in civil engineering, both as insulation from heat and sound, and for load-bearing structures. However, due to the nature of the cement material and its high porosity, FC is very weak in withstanding tensile loads; therefore, it often cracks in a plastic state, during shrinkage while drying, and also in a solid state. This paper is the first comprehensive review of the use of man-made and natural fibres to produce fibre-reinforced foamed concrete (FRFC).