Umbilical double-port laparoscopy combined with extraperitoneal water injection for the treatment of giant inguinal hernias in infants and young children.

Objective: Exploration of the efficacy of treating large indirect inguinal hernias in infants and young children using umbilical double-port laparoscopy combined with extraperitoneal water injection.

Methods: A retrospective analysis was conducted on 165 cases of primary unilateral large indirect inguinal hernias in infants and young children treated at our hospital from May 2018 to May 2023. Among them, 90 cases underwent umbilical double-port laparoscopic surgery combined with extraperitoneal water injection and high ligation of the hernia sac (Double-Port Group), and another 75 cases underwent conventional three-port laparoscopic high ligation of the hernia sac (Three-Port Group).

Study on the Migration Patterns of Oxygen Elements during the Refining Process of Ti-48Al Scrap under Electromagnetic Levitation.

This study investigated the migration patterns of oxygen in the deoxidation process of Ti-48Al alloy scrap using electromagnetic levitation (EML) technology. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were employed to analyze the oxygen distribution patterns and migration path during EML. The refining process resulted in three types of oxygen migration: (1) escape from the lattice and evaporation in the form of AlO, AlO; (2) formation of metal oxides and remaining in the alloy melt; (3) attachment to the quartz tube wall in the form of metal oxides such as AlO and CrO.

Numerical Simulation of Electromagnetic-Thermal-Fluid Coupling for the Deformation Behavior of Titanium-Aluminum Alloy under Electromagnetic Levitation.

Electromagnetic levitation (EML) is a good method for high-temperature processing of reactive materials such as titanium-aluminum (Ti-Al) alloys. In this study, the oscillation and deformation processes of Ti-48Al-2Cr alloy specimens at different high-frequency currents during the EML process were simulated using the Finite Element Method and Arbitrary Lagrangian-Eulerian (ALE) methods. The data of oscillation, stabilization time, deformation, and distribution of electromagnetic-thermal-fluid fields were finally obtained.

Nature-Inspired Incorporation of Precipitants into High-Strength Bulk Aluminum Alloys Enables Life-Long Extraordinary Corrosion Resistance in Diverse Aqueous Environments.

The safe service and wide applications of lightweight high-strength aluminum alloys are seriously challenged by diverse environmental corrosion, since high strength and corrosion resistance are mutually exclusive for metals while surface protection cannot provide life-long corrosion resistance. Here, inspired by fish secreting slime from glands to resist external changes, a strategy of incorporating precipitants as the slime into bulk metals using the inner cavity of opened carbon nanotubes (CNTs) as the glands is developed to enable high-strength aluminum alloys with life-long superior corrosion resistance. The resulting material has ultrahigh tensile strength (≈700 MPa) and extraordinary corrosion resistance in acidic, neutral and alkaline media.

Impact of Electromagnetic Stirring Roller Arrangement Pattern on Magnetic Field Simulation and Solidification Structure of PW800 Steel in the Second Cooling Zone.

Strand electromagnetic stirring (S-EMS), a technique applied in the secondary cooling zone, enhances the solidification structure of casting slabs. This study examines how the arrangement pattern of electromagnetic stirring rollers-face-to-face, side-to-side or up-down misalignment produces this enhancement. It uses simulations to analyze the electromagnetic field distribution in these configurations.

LncRNA SNHG12 regulated by WTAP aggravated the oxygen-glucose deprivation/reperfusion-induced injury in bEnd.3 cell.

Objectives: Previous studies have identified abnormal expression of lncRNA SNHG12 in ischemic stroke, but the underlying molecular mechanism remains unclear.

Materials And Methods: Through database predictions, m6A methylation sites were found on SNHG12, suggesting post-transcriptional modification. To further elucidate the role of SNHG12 and m6A methyltransferase WTAP in oxygen-glucose deprivation/reperfusion (OGD/R)-induced damage in cerebral microvascular endothelial cells, we conducted investigations.

Robot-assisted pyeloplasty and laparoscopic pyeloplasty in children: A comparison of single-port-plus-one and multiport surgery.

Objective: This study aimed to compare the effects of various trocar placements in robot-assisted and laparoscopic pyeloplasty involving children diagnosed with obstruction of the ureteropelvic junction (OUPJ).

Methods: We retrospectively collected the data on 74 patients under 14 years of age who had been diagnosed with OUPJ; these patients underwent either robot-assisted or laparoscopic pyeloplasty in our hospital between January 2015 and November 2021. There were four groups, as follows: •Laparoscopic multiport pyeloplasty (LMPY),•Laparoscopic single-port pyeloplasty (LSPY),•Robotic-assisted multiport pyeloplasty (RMPY),•Robotic-assisted single-port-plus-one pyeloplasty (RSPY).

gene polymorphisms increase hepatoblastoma susceptibility in girls.

Hepatoblastoma, originating from hepatoblasts, is the most common hepatic malignancy. WD repeat domain 4 (WDR4) is a subunit of RNA N(7)-methylguanine (m7G) methyltransferase complex. Recently, WDR4 has shown oncogenic potential in various adult cancers, but its roles in pediatric cancers have not been reported.

Identification of key carcinogenic genes in Wilms' tumor.

This study aimed to probe carcinogenic genes and pathways associated with Wilms' tumor (WT) onset and malignancy progression. After screening, three datasets acquired from the Gene Expression Omnibus database were analyzed. Differentially expressed genes (DEGs) were identified and GO functional enrichment, KEGG pathway enrichment and protein-protein interaction (PPI) were analyzed.

Drug preconcentration and direct quantification in biofluids using 3D-Printed paper cartridge.

Drug detection in biofluids has always been great importance for clinical diagnosis. Many detection technologies such as chromatography-mass spectrometry, have been applied to the detection of drugs. However, these technologies required multi-step operations, including complicated and time-consuming pretreatment processes and operations of bulky detection instruments, significantly limiting development of drug detection in clinical diagnosis.

[Modified Brisson surgery combined with skin flap clipping for the treatment of severe concealed penis in children].

Objective: To explore the effect of modified Brisson surgery combined with the skin flap clipping technique in the treatment of severe concealed penis in children.

Methods: We retrospectively analyzed the clinical data on 165 children with severely concealed penis treated in our hospital from January 2014 to January 2019, 105 by modified Brisson surgery combined with the skin flap clipping technique and the other 60 by modified Devine surgery, all the operations performed by the same surgeon. We compared the two surgical strategies concerning operation time, intraoperative blood loss, postoperative increase of penile exposure, preputial edema duration, flap necrosis and penile retraction, and satisfaction of the patients' parents with the overall surgical effect.

[Differences and Relationship Between Rhizosphere Characteristics and Methane Emissions of Double-cropping Rice Variety].

Six field varieties of early rice and late rice were selected as test materials for field experiments to explore the difference in CH emissions among different rice varieties, and Static Obscura-Gas Chromatography was used to determine the CH gas. The results demonstrated a significant difference in the CH emissions flux between early and late rice varieties. The average yield of total fertility CH emissions was highest in Xiangzaoxian 24 and lowest in Zhuliangyou 819, with a difference of 34.

Does the climate warming hiatus exist over the Tibetan Plateau?

The surface air temperature change over the Tibetan Plateau is determined based on historical observations from 1980 to 2013. In contrast to the cooling trend in the rest of China, and the global warming hiatus post-1990s, an accelerated warming trend has appeared over the Tibetan Plateau during 1998-2013 (0.25 °C decade(-1)), compared with that during 1980-1997 (0.