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Materias / palabras clave: Tools, Prehistoric; Middle East; Herramientas prehistóricas; Oriente Medio; Stone implements; Utensilios de piedra; Neolithic period; Período neolítico

Humans around the world likely used thrusting spears during much of the Paleolithic period. A key development in spear evolution was the addition of a sharp stone tip. Here, we examined via controlled experiment whether ...

Abstract Objective To compare the clinical characteristics of infectious and non-infectious stones in patients with urinary tract infections caused by Proteus mirabilis and to explore associated influencing factors. Meth...

Introduction: Gallstone disease is a prevalent gastrointestinal disorder, often managed surgically via Laparoscopic Cholecystectomy (LC), which is considered the current gold standard. However, Gallbladder Wall Thickness...

Abstract Objective Accurate preoperative stone size assessment is crucial for predicting outcomes after percutaneous nephrolithotomy (PCNL), yet a gap persists between the accurate but impractical gold standard (3D softw...

Introduction and importanceBouveret syndrome is a rare form of gallstone ileus characterized by gastric outlet obstruction secondary to impaction of a gallstone that has migrated into the gastrointestinal tract through a...

BackgroundEndoscopic retrograde cholangiopancreatography (ERCP) is a critical therapeutic modality for bile duct stones; however, cases of cystic duct stones (CDS) managed by ERCP alone are rarely reported. Herein, we pr...

Abstract Background Impacted upper ureteral stones pose a significant risk of ureteral injury and stricture formation during ureteroscopic procedures. The Flexible and Navigable Suction Ureteral Access Sheath (FANS) inte...

Abstract Background Management of upper urinary tract stones with moderate-to-severe hydronephrosis remains challenging due to altered renal anatomy and higher complication risks. Flexible negative-pressure ureteral shea...

In this paper, the assessment of the radon exhalation rate of the Modica stone building material, untreated and accelerated aged through salt crystallization test, is reported as a case study. Noteworthy, this constructi...

In this paper we give a constructive proof that the variety of Boolean algebras has the strong amalgamation property by describing constructively the strong amalgams in the variety. Then, capitalizing on this constructio...

The presence of the “pear thrips” Taeniothrips inconsequens has been cited in Argentina in 1921 by Teresa Joan. This has affected exports of fruit tree propagation materials. However currently there is a concern abou...

Ureteral calculi are common in urological practice, and ureteroscopic holmium laser lithotripsy (HLUL) is the preferred minimally invasive treatment. However, postoperative residual fragments and inflammatory responses r...

In the context of this work, a prototype hybrid photoacoustic (PA) and optical system for the on-line monitoring of laser cleaning procedures is presented. The developed apparatus has enabled the detection of MHz frequen...

Improving road transportation accessibility is essential for enhancing local social and economic activity in a country. One way to maintain the accessibility of the road network and ensure that users feel safe and comfor...

Abstract Background This study compared the clinical performance of 7.5 F and 9 F digital flexible ureteroscopes in sheathless retrograde intrarenal surgery (RIRS), with a particular focus on how ureteroscope caliber i...

This study was conducted to determine the frequency of renal stones in patients diagnosed with chronic kidney disease. A total of 226 participants aged 18–60 years of both genders with CKD were enrolled using consecuti...

This research designs a sustainable composite material using PLA, palm biomass, and ground volcanic stone (VSMGP) to improve mechanical and insulation efficiency for green construction. The raw materials were dried , sie...