One-day dual-tracer examination in neuroendocrine neoplasms: a real advantage of low activity LAFOV PET imaging.

Purpose: Somatostatin receptor (SSTR)-PET is crucial for effective treatment stratification of neuroendocrine neoplasms (NENs). In highly proliferating or poorly differentiated NENs, dual-tracer approaches using additional [F]FDG PET can effectively identify SSTR-negative disease, usually requiring separate imaging sessions. We evaluated the feasibility of a one-day dual-tracer imaging protocol with a low activity [F]FDG PET followed by an SSTR-PET using the recently introduced [F]SiFAlin-TATE tracer in a long axial field-of-view (LAFOV) PET/CT scanner and its implications in patient management.

The impact of updated imaging software on the performance of machine learning models for breast cancer diagnosis: a multi-center, retrospective study.

Purpose: Artificial Intelligence models based on medical (imaging) data are increasingly developed. However, the imaging software on which the original data is generated is frequently updated. The impact of updated imaging software on the performance of AI models is unclear.

[Epidemiology and prevention of oropharyngeal cancer : Summary of the new German S3 guideline].

Due to the association with the causal human papillomavirus 16 (HPV16) infection, oropharyngeal squamous cell carcinoma is now separated into two distinct entities depending on HPV16 positivity. More recent data show a diversified picture of the importance and prevalence of the surrogate parameter p16 (discordance) for a definitive HPV16 association, which varies worldwide. In the context of preventive options, vaccination is of major importance and HPV screening of healthy people of less importance.

Efficacy and Tolerance of the Tampsec Vaginal Tampon for Treating Stress Urinary Incontinence. A Randomized Controlled Trial.

Introduction And Hypothesis: Stress urinary incontinence (SUI) is a highly prevalent condition in women. We hypothesized that the Tampsec™ vaginal tampon will be efficacious and well tolerated in its treatment.

Methods: This was a multicenter open-label parallel-group randomized control trial.

Assessing acute effects of methylphenidate and modafinil on inhibitory capacity, time estimation, attentional lapses, and compulsive-like behavior in rats.

Medications known as 'cognitive enhancers' are increasingly being consumed off-label by healthy people, raising concerns about their safety. The aim of our study was to profile behavioral performance upon oral administration of methylphenidate (2.5 mg/kg) and modafinil (64 mg/kg) - two popular cognitive enhancers - and upon their discontinuation.

Cost of lung cancer diagnosis: cost differences between national health system and private sector.

Lung cancer is still diagnosed at an advanced stage due to lack of early disease symptoms. We have techniques and equipment for rapid on site evaluation of pulmonary lesions. However, with new technology or a combination of technologies in the diagnostic suite the cost of biopsy is rising.

Identifying metabolomic mediators of the physical activity and colorectal cancer relationship.

Background: Current evidence suggests higher physical activity (PA) levels are associated with a reduced risk of colorectal cancer (CRC). However, the mediating role of the circulating metabolome in this relationship remains unclear.

Methods: Targeted metabolomics data from 6,055 participants in the EPIC cohort were used to identify metabolites associated with PA and derive a metabolomic signature of PA levels.

The plastidial glucan phosphorylase modulates maltodextrin metabolism and affects starch parameters in Arabidopsis thaliana.

The plastidial α-glucan phosphorylase (PHS1) can catalyze the elongation and degradation of glucans, but its exact physiological role in plants is not completely deciphered. A plethora of studies have indicated that PHS1 is involved in transitory starch turnover, both in photosynthetic tissues as well as reserve starch accumulation in sink organs of multiple species, by exerting its effects on the plastidial maltodextrin pools. Recent studies have also established its role in the mobilization of short maltooligosaccharides (MOSs), thereby assisting in starch granule initiation.

Liquid slide electrification: advances and open questions.

This review is about drops of a liquid with high dielectric permittivity that slide over a solid surface with high electrical resistivity. A typical situation is a water drop sliding down a tilted hydrophobic plate. It has been realized recently that such drops spontaneously acquire a charge.

Collaborative Development of Feedback Concept Maps for Virtual Patient-Based Clinical Reasoning Education: Mixed Methods Study.

Background: Concept maps are a suitable method for teaching clinical reasoning (CR). For example, in a concept map, findings, tests, differential diagnoses, and treatment options can be documented and connected to each other. When combined with virtual patients, automated feedback can be provided to the students' concept maps.

Quantitative MALDI-TOF Mass Spectrometry of Star-Shaped Polylactides Based on Chromatographic Hyphenation.

The end groups of three- and four-arm star-shaped polylactides (PLA) with trimethylolpropane and pentaerythritol core structures were functionalized with acetic acid. Reaction products with different degrees of functionalization were analyzed by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry. Additional gradient elution liquid adsorption chromatography (GELAC) measurements were performed to determine the degree of functionalization.

Pain and Functional Outcome After Microsurgical Decompression of Lumbar Spinal Stenosis: Very Short- and Long-Term Postoperative Analysis.

Study Design: Multicenter, prospective observational cohort study.

Objectives: 109 patients with lumbar spine stenosis (LSS) undergoing minimally invasive decompression in 6 different centers (Germany, Italy, USA).

Methods: The demographic, surgical and clinical data was collected.

Validation of a Pretransplant Risk Prediction Model for Early Allograft Dysfunction After Living-donor Liver Transplantation.

Background: Early allograft dysfunction (EAD) affects outcomes in liver transplantation (LT). Existing risk models developed for deceased-donor LT depend on posttransplant factors and fall short in living-donor LT (LDLT), where pretransplant evaluations are crucial for preventing EAD and justifying the donor's risks.

Methods: This retrospective study analyzed data from 2944 adult patients who underwent LDLT at 17 centers between 2016 and 2020.

A simple cavity-enhanced laser-based heater for reflective samples.

Surface science instruments require excellent vacuum to ensure surface cleanliness; they also require control of sample temperature, both to clean the surface of contaminants and to control reaction rates at the surface, for example, for molecular beam epitaxy and studies of heterogeneous catalysis. Standard approaches to sample heating within high vacuum chambers involve passing current through filaments of refractory metals, which then heat the sample by convective, radiative, or electron bombardment induced heat transfer. Such hot filament methods lead to outgassing of molecules from neighboring materials that are inadvertently heated; they also produce electrons and ions that may interfere with other aspects of the surface science experiment.

GlnA3 is able to glutamylate spermine but it is not essential for the detoxification of spermine in .

Unlabelled: is well adapted to survive and persist in the infected host, escaping the host's immune response. Since polyamines such as spermine, which are synthesized by infected macrophages, are able to inhibit the growth of , the pathogen needs strategies to cope with these toxic metabolites. The actinomycete , a close relative of makes use of a gamma-glutamylation pathway to functionally neutralize spermine.

Myristoylated Neuronal Calcium Sensor-1 captures the ciliary vesicle at distal appendages.

The primary cilium is a microtubule-based organelle that cycles through assembly and disassembly. In many cell types, formation of the cilium is initiated by recruitment of ciliary vesicles to the distal appendage of the mother centriole. However, the distal appendage mechanism that directly captures ciliary vesicles is yet to be identified.

Development of bone mineral density and content in children with cerebral palsy: a retrospective, longitudinal study.

Objectives: The aim of this study was to investigate long-term bone development in children with cerebral palsy (CP) using longitudinal measurements of total body less head bone mineral content (TBLH-BMC) and bone mineral density (TBLH-BMD).

Methods: A retrospective longitudinal analysis was performed on 109 children with CP who participated in a rehabilitation programme from 2006 to 2018. Dual-energy X-ray absorptiometry (DXA) scans were performed at the beginning of the programme and repeated as clinically indicated.

Decision-making and climbing performance under time constraints in Olympic bouldering.

Kahneman's dual-process model postulates that two systems are involved in decision-making: slow thinking, defined as analytical processing of information, and fast thinking, where decisions emerge from intuitive, automatic responses. Climbers in Olympic bouldering typically engage in slow thinking to interpret movements and explore climbing strategies. However, time constraints imposed by regulations, combined with ineffective decision-making and failed climbing attempts, may compel them to make more intuitive, fast decisions.

Comparison of ultrasound-assisted thrombolysis and mechanical thrombectomy in intermediate-high-risk pulmonary embolism.

Pulmonary embolism (PE) can result in high mortality. Early risk stratification and treatment are critical for individualized management. In patients with intermediate-high-risk (IHR) PE, guidelines recommend to consider a percutaneous catheter-directed treatment (CDT).

Chemospecific Heterostructure and Heteromaterial Assembly of Metal-Organic Framework Nanoparticles.

Nanoparticles of highly porous metal-organic frameworks (MOFs) are some of the most exciting nanomaterials under development, with potential applications that range from biomedicine and catalysis to adsorption technologies. However, our synthetic methodologies to functionalize and manipulate MOF nanoparticles (NPs) are less well developed than they might be. Here we create MOF NPs derivatized with hydrazone units on their exterior, enabling chemospecific reversible dynamic covalent modification of structures on the external surface.

Examining priorities and investments made through the Global Financing Facility for maternal and newborn health: a sub-analysis on quality.

Improving quality of care could avert most of the 4.5 million maternal and neonatal deaths and stillbirths that occur each year. The Global Financing Facility (GFF) aims to catalyse the national scale-up of maternal and newborn health (MNH) interventions through focused investments.

OH-Detected Aromatic Microsolvation of an Organic NO Radical: Halogenation Controls the Solvation Side.

The persistent organic radical 2,2,6,6-tetramethylpiperidinyloxyl (TEMPO) protects its NO radical center by four methyl groups. Two of them are arranged tightly (t) on one side of the six-membered puckered heterocycle, and the other two more openly (o) on the other side. It is shown by OH stretching infrared spectroscopy in heated supersonic jet expansions that the hydrogen bond and aromatic ring of a first solvating benzyl alcohol have almost no preference for either side.