Pure Yolk Sac Testicular Tumour in an Adult: A Diagnostic Dilemma.

A rare case of a pure yolk sac testicular tumour presenting in an adult with learning difficulties is presented. Pure yolk sac tumours are much more common in children, but when they do occur in adults, onset can be both insidious and aggressive. The best practice for identification involves the precise use of ultrasound, blood tests for tumour markers and FDG-PET/CT imaging for staging.

Interlayer Ions Control Spin Canting in Low-Dimensional Manganese Trimers in 12R-BaMnO ( = Ce, Pr) Layered Perovskites.

To synthetically target a specific material with select performance, the underlying relationship between structure and function must be understood. For targeting magnetic properties, such understanding is underdeveloped for a relatively new class of layered hexagonal perovskites, the 12R-BaMnO family. Here, we perform a detailed magnetostructural study of the layered hexagonal perovskite materials 12R-BaMnO, where = diamagnetic Ce or paramagnetic ≈ 1/2 Pr.

Reconstructive techniques following low anterior resection for carcinoma of the rectum.

Introduction: Multiple reconstructive techniques have been described for reconstruction after a low anterior resection for carcinoma rectum. Colonic J pouch (CJP), Side to end anastomosis (SEA), transverse coloplasty pouch (TCP) and Straight Colo-rectal/anal anastomosis were the most widely studied.

Evidence Acquisition: PubMed, Embase and Cochrane data base were searched for randomized, non-randomized studies and systematic reviews from inception of the databases till July 31, 2023.

Defect graph neural networks for materials discovery in high-temperature clean-energy applications.

We present a graph neural network approach that fully automates the prediction of defect formation enthalpies for any crystallographic site from the ideal crystal structure, without the need to create defected atomic structure models as input. Here we used density functional theory reference data for vacancy defects in oxides, to train a defect graph neural network (dGNN) model that replaces the density functional theory supercell relaxations otherwise required for each symmetrically unique crystal site. Interfaced with thermodynamic calculations of reduction entropies and associated free energies, the dGNN model is applied to the screening of oxides in the Materials Project database, connecting the zero-kelvin defect enthalpies to high-temperature process conditions relevant for solar thermochemical hydrogen production and other energy applications.

Successful Management of Aorto-Oesophageal Fistula Following Accidental Ingestion of Chicken Bone.

Accidental ingestion of foreign bodies is common in clinical practice. It is usually seen to pass through the gastrointestinal tract easily. However, in the case of impaction in the esophagus, it can lead to catastrophic conditions.

Early versus delayed surgery following neoadjuvant chemoradiation for esophageal cancer: a systematic review and meta-analysis.

Background: Neoadjuvant chemoradiotherapy (nCRT) followed by surgery, is the mainstay of managing locally advanced esophageal cancer. However, the optimal timing of surgery after neoadjuvant therapy is not defined clearly.

Methods: A systematic search of PubMed, Embase and Cochrane databases was conducted.

Tenofovir-induced distal renal tubular acidosis: A rare cause of recurrent hypokalaemic paralysis.

Tenofovir disoproxil fumarate was the first nucleotide analogue reverse transcriptase inhibitor to be approved for treatment of human immunodeficiency virus infection. It is a relatively safe drug but can present with nephrotoxicity. We report a case of 36-year-old male who presented with acute onset flaccid paraparesis.

IgG4-Related Pancreato-Biliary Disease in the Disguise of Malignancy.

The Immunoglobulin G4-related disease (IgG4-RD) is a multisystem inflammatory condition. Pancreaticobiliary manifestations often present as mass lesions that mimic malignancies. The diagnosis is confirmed by histopathological examination, that shows lymphoplasmacytic infiltration, storiform fibrosis, obliterative phlebitis, and positive immunohistochemistry for IgG4.

Formation of 6H-BaCeMnO during Thermochemical Reduction of 12R-BaCeMnO: Identification of a Polytype in the Ba(Ce,Mn)O Family.

The resurgence of interest in a hydrogen economy and the development of hydrogen-related technologies has initiated numerous research and development efforts aimed at making the generation, storage, and transportation of hydrogen more efficient and affordable. Solar thermochemical hydrogen production (STCH) is a process that potentially exhibits numerous benefits such as high reaction efficiencies, tunable thermodynamics, and continued performance over extended cycling. Although CeO has been the de facto standard STCH material for many years, more recently 12R-BaCeMnO (BCM) has demonstrated enhanced hydrogen production at intermediate H/HO conditions compared to CeO, making it a contender for large-scale hydrogen production.

Correction: The importance of phase equilibrium for doping efficiency: iodine doped PbTe.

Correction for 'The importance of phase equilibrium for doping efficiency: iodine doped PbTe' by James Male , , 2019, , 1444-1453, DOI: 10.1039/C9MH00294D.

Uncommon complication of feeding jejunostomy: A case report.

Feeding jejunostomy is a common surgical procedure performed for patients who cannot take oral feeds. Although a minor procedure, it is not without complications. However, distal migration of the tube into the bowel is extremely rare.

The importance of phase equilibrium for doping efficiency: iodine doped PbTe.

Semiconductor engineering relies heavily on doping efficiency and dopability. Low doping efficiency may cause low mobility and failure to reach target carrier concentrations or even the desired carrier type. Semiconducting thermoelectric materials perform best with degenerate carrier concentrations, meaning high performance in new materials might not be realized experimentally without a route to optimal doping.

Supine Percutaneous Nephrolithotomy in the Galdako-Modified Valdivia Position: A High-Volume Single Center Experience.

Objective: To describe the technique and outcomes of supine percutaneous nephrolithotomy (PCNL) in the Galdako-modified Valdivia position.

Materials And Methods: Prospective data were collected from 303 patients undergoing PCNL in the Galdako-modified Valdivia position at our institution between 2007 and 2015. We report our technique with outcomes of operative times, stone-free rate (SFR), and complications.

Multimarker risk stratification approach and cardiovascular outcomes in patients with stable coronary artery disease undergoing elective percutaneous coronary intervention.

Aims: We studied the utility of multimarker risk stratification approach to predict cardiovascular outcomes in patients with stable coronary artery disease, undergoing elective percutaneous coronary intervention (PCI).

Methods: We prospectively evaluated 302 consecutive patients with stable coronary artery disease and normal CPK-MB and cardiac troponin T levels, and who underwent elective PCI at our institution. The following cardiac biomarkers were measured before and between 12 and 24h post-procedure: CK-MB, cardiac troponin T, hs-CRP, and NT-ProBNP.

Charge optimized many-body potential for aluminum.

An interatomic potential for Al is developed within the third generation of the charge optimized many-body (COMB3) formalism. The database used for the parameterization of the potential consists of experimental data and the results of first-principles and quantum chemical calculations. The potential exhibits reasonable agreement with cohesive energy, lattice parameters, elastic constants, bulk and shear modulus, surface energies, stacking fault energies, point defect formation energies, and the phase order of metallic Al from experiments and density functional theory.

Raised white cell count in renal colic: Is there a role for antibiotics?

Aims: To determine the use of antibiotics in patients with renal colic and an elevated white cell count (WCC) in the absence of other features of infection.

Materials And Methods: A retrospective audit of patients presenting to an emergency department with renal colic caused by a solitary ureteric stone over a 6 month period.

Statistical Analysis Used: Student's t-test.

A self-expanding thermolabile nitinol stent as a minimally invasive treatment alternative for ureteral strictures in renal transplant patients.

Background And Purpose: Ureteral obstruction in renal transplant allografts secondary to strictures can pose a challenging problem. Its incidence is reported between 0.5% and 4.

Improving the durability of digital flexible ureteroscopes.

Objective: To present the damage to digital flexible ureteroscopes after 1 year of use in a tertiary stone center and our strategy to reduce the damage.

Materials And Methods: Data regarding all procedures performed with 3 new digital flexible ureteroscopes (Olympus URF-V) were collected. We examined the conditions under which the damage occurred and retrieved the manufacturer's repair reports.

Phenytoin in treatment of amiodarone-induced Torsades de pointes.

Phenytoin, a class IB anti-arrhythmic agent, is considered the drug of choice for ventricular arrhythmias due to digoxin toxicity. We report successful reversion of polymorphic ventricular tachycardia secondary to amiodarone toxicity by phenytoin administration that was resistant to the conventional drugs (magnesium sulphate, lidocaine and atropine).