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Characterization of spark ignition energy transfer at different phases using pressure-rise calorimetry

The paper presents novel studies on the electrical-to-thermal energy deposition to gas at different phases of a spark. The experiments utilized a 10.9 milliliter custom-built spark calorimeter. The energy transfer efficiencies across spark phases—breakdown+arc, and glow are quantified, emphasizing their importance in ensuring robust ignition. An AC capacitive ignition system was considered in the

Folkparken i Lund : En bortglömd arbetarhistoria

The People’s Park in Lund was one of Sweden’s first public places owned by the labour movement. Today the park has become a municipal re creational facility and cultural centre, and the pivotal role of labour in its creation has all but completely faded. Yet despite this amnesia, urban development plans for the park have been overturned many times with references to the place’s past, which has mad

Oat beta-glucans consumed at breakfast improve glucose tolerance acutely and after a subsequent lunch - a randomized dose-response study in healthy young adults

Oat beta-glucans (OBGs) lower postprandial blood glucose by increasing gastrointestinal viscosity, delaying gastric emptying, and slowing glucose absorption. While the European Food Safety Authority (EFSA) recommends a minimum intake of 4 g of OBGs per 30 g of available carbohydrates (avCHO) for a significant reduction in glycaemic response, this poses formulation challenges. This study investigat

Lactoferrin-derived peptide PXL01 impacts nerve regeneration after sciatic nerve reconstruction in healthy and diabetic rats

INTRODUCTION: Although advanced surgical techniques are available, satisfactory functional outcomes after peripheral nerve injuries are uncommon. Hence, immune-modulating factors such as PXL01, a lactoferrin-derived peptide that improves axonal outgrowth in injured human digital nerves, have gained attention. We previously reported a short-term immunosuppressive effect of PXL01 after the repair of

Evaluation of hematological markers in minor head trauma in the emergency room

Introduction: A rule exists regarding the use of computed tomography (CT) for patients presenting to the emergency department with head trauma and a Glasgow coma score (GCS) of 15; however, it can be difficult to make this decision due to overcrowded emergency rooms or exaggerated patients complaints. We evaluated patients who presented to the emergency room with minor head trauma, and we aimed to

Neurosurgical approaches to spinal infections

Spinal infection is rare. Clinical suspicion is important in patients with nonmechanical neck and/or back pain to make the proper diagnosis in early disease. Before planning surgery, a thorough evaluation of the spinal stability, alignment, and deformity is necessary. Timing of surgery, side of approach, appropriate surgical technique, and spinal instruments used are crucial. Biomechanical preserv

Management of cerebrospinal fluid leak during endoscopic pituitary surgery

Objective: Dural opening and closures are major steps in endoscopic pituitary surgery. Restoring the normal anatomy at the end of the procedure creates a natural barrier between the intrasellar compartment and the sinonasal cavity. Methods: In this study, we present a relatively simple dural opening and closure technique for endoscopic pituitary surgery. This technique provides a better alternativ

Cost and efficacy of perioperative antibiotic prophylaxis in a State Hospital in turkey

Objective: The objective of this study was to evaluate the applications and procedures of perioperative antibiotic prophylaxis (PAP) in terms of their cost and efficacy in a state hospital in Turkey. Setting: A 372-bed, state hospital in Isparta, Turkey. Method:The investigation was performed between May and August 2011 in six surgical wards. All of the surgical procedures were followed up and ant

Subdural empyema and unilateral pansinusitis due to a tooth infection

Paranasal sinus infections are very common. Dental infections, tumours and anatomical malformations can cause unilateral sinusitis. Most cases can be treated without complications. However, rare life-threatening intracranial complications can occur. Generally, an intracranial complication progresses rapidly and can cause meningismus, focal neurological disorders, loss of consciousness and seizures

The relationship basal ganglia calcification and level of 25(OH)-D and parathyroid hormone in patients with Parkinson's disease

Objective: This study aims to investigate the relationship between the levels of 25- Hydroxyvitamin D (25(OH)-D), parathyroid hormone (PTH) and basal ganglia calcification (BGC) in patients with Parkinson's disease (PD). Method: The study population consisted of 32 patients with PD who were admitted to the Neurology Clinic of Antakya State Hospital in 2010 as well as 32 healthy control subjects. S

Treatment of acromegaly by endoscopic transsphenoidal surgery : Surgical experience in 214 cases and cure rates according to current consensus criteria - Clinical article

Object. Acromegaly is a disease that has significant morbidity and mortality related to high levels of growth hormone (GH) and insulin-like growth factor-I (IGF-I), and is usually caused by pituitary adenomas. The goal in this study was to investigate the role of endoscopic transsphenoidal surgery and surgical experience in the treatment of GH adenoma cases in relation to surgical results and horm

Antimicrobial effect of polymer-based silver nanoparticle coated pedicle screws : Experimental research on biofilm inhibition in Rabbits

Study Design. Antimicrobial effect of a novel silverimpregnated pedicle screw in rabbits. Objective. A novel spine implant model was designed to study the antimicrobial effect of a modified Titanium (Ti) pedicle screws with methicillin-resistant Staphylococcus aureus (MRSA) in multiple surgical sites in the lumbar spine of a rabbit. Summary of Background Data. Infection in spinal implant is of gre

The efficacy of silver-embedded polypropylene-grafted polyethylene glycol-coated ventricular catheters on prevention of shunt catheter infection in rats

Purpose: Catheter-related infection is a major complication of ventriculoperitoneal shunt in children. The aim of this study is to determine inflammatory response and the efficacy of polypropylene-grafted polyethylene glycol (PP-g- PEG) copolymer and silver nanoparticle-embedded PP-g- PEG (Ag-PP-g-PEG) polymer-coated ventricular catheters on the prevention of catheter-related infections on a new e

Comparison of the toxicities of ethylene vinyl alcohol copolymer (EVOH) preparations, dimethyl sulphoxide and N-butyl 2-cyanoacrylate on cerebral parenchyma in an experimental rabbit model

AIM: Ethylene vinyl alcohol copolymer (EVOH), its organic solvent dimethyl sulfoxide (DMSO), and N-Butyl 2-Cyanoacrylate (NBCA) are widely used in neurovascular embolization procedures and yet with potential risk of cytotoxicity. The aim of this study was to evaluate the toxic effect of EVOH-DMSO, its solvent DMSO and NBCA on cerebral parenchyma in a rabbit model. MATERIAL and METHODS: Forty-eight

De novo formation of brain tumors in pediatric population following therapeutic cranial irradiation

Purpose: Tumors of central nervous system (CNS) are accounted as the second most common tumors in childhood (21 % of all cancers) following hematologic malignancies. The patients can suffer more than one cancer in their lifetime, and radiotherapy is claimed for de novo formation of a new tumor in years after treatment of an initial tumor. Methods: We have retrospectively analyzed our database for

The effect of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) and human mesenchymal stem cell (hMSC) on axonal regeneration in experimental sciatic nerve damage

This study is designed to evaluate the treatment effect of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) and human mesenchymal stem cells (hMSC) on axonal regeneration in experimental rat sciatic nerve damage, and compare the results of this modality with autologous nerve grafting. In Spraque-Dawley albino rats, 10-mm-long experimental nerve gaps were created. Three groups were constitute

Peripheral nerve

In order to understand peripheral nerve dysfunction, and to follow neuronal regeneration, basic sciences of the peripheral nerve should be understood completely. A surgeon who operates on "nerves" uses this knowledge, especially the organization of the peripheral nerve, in nerve reconstructions. When a nerve has been injured, the goal of surgical repair is generally to reapproximate the ends of th