Ultrasound in bone fracture diagnosis - a comparative meta-analysis and systematic review.

Aim: This meta-analysis evaluates the diagnostic accuracy of ultrasound (US) for bone fractures over the past 47 years, comparing it to established imaging standards.

Material And Methods: We adhered to PRISMA 2020 guidelines to search Medline, EMBASE, and the Cochrane Library using tailored search strategies. The primary outcome, US diagnostic performance, was analyzed across various subgroups including clinical relevance, patient age, and anatomical considerations.

Point-of-Care Ultrasound-History, Current and Evolving Clinical Concepts in Emergency Medicine.

Point-of-care ultrasound (PoCUS) has become an indispensable standard in emergency medicine. Emergency medicine ultrasound (EMUS) is the application of bedside PoCUS by the attending emergency physician to assist in the diagnosis and management of many time-sensitive health emergencies. In many ways, using PoCUS is not only the mere application of technology, but also a fusion of already existing examiner skills and technology in the context of a patient encounter.

Stability of Iridium Single Atoms on FeO(001) in the mbar Pressure Range.

Stable single metal adatoms on oxide surfaces are of great interest for future applications in the field of catalysis. We studied iridium single atoms (Ir) supported on a FeO(001) single crystal, a model system previously only studied in ultra-high vacuum, to explore their behavior upon exposure to several gases in the millibar range (up to 20 mbar) utilizing ambient-pressure X-ray photoelectron spectroscopy. The Ir single adatoms appear stable upon exposure to a variety of common gases at room temperature, including oxygen (O), hydrogen (H), nitrogen (N), carbon monoxide (CO), argon (Ar), and water vapor.

Point-of-Care Ultrasound: A Multimodal Tool for the Management of Sepsis in the Emergency Department.

Sepsis and septic shock are life-threatening emergencies associated with increased morbidity and mortality. Hence, early diagnosis and management of both conditions is of paramount importance. Point-of-care ultrasound (POCUS) is a cost-effective and safe imaging modality performed at the bedside, which has rapidly emerged as an excellent multimodal tool and has been gradually incorporated as an adjunct to physical examination in order to facilitate evaluation, diagnosis and management.

Emergency Point-of-Care Ultrasound Stewardship - A Joint Position Paper by EuSEM and EFSUMB and Endorsed by IFEM and WFUMB.

Emergency Medicine Point-of-Care Ultrasound (EMPoCUS) is a convincing concept. It has spread rapidly because of its intuitive, simple applicability and low equipment costs. The speed of its emerging growth frequently outpaces the development of quality assurance and education.

Dynamic Equilibrium at the HCOOH-Saturated TiO(110)-Water Interface.

Carboxylic acids bind to titanium dioxide (TiO) dissociatively, forming surface superstructures that give rise to a (2 × 1) pattern detected by low-energy electron diffraction. Exposing this system to water, however, leads to a loss of the highly ordered surface structure. The formate-covered surface was investigated by a combination of diffraction and spectroscopy techniques, together with static and dynamic ab initio simulations, with the conclusion that a dynamic equilibrium exists between adsorbed formic acid and water molecules.

Unraveling Atomic and Electronic Surface Structure and Dynamics from Angular Photoelectron Distributions.

Angle-resolved photoelectron spectroscopy (ARPES) is a powerful tool in solid state sciences. Beside the direct measurement of the energy-momentum dispersion relation, the angular distribution of the photoelectron current reveals the structural environment of the emitting atoms via photoelectron diffraction effects. Moreover, in the case of molecular layers, the angular distribution of emission from molecular orbitals can be directly related to their charge density distribution via so-called orbital tomography.

Electrocardiographic alterations by pneumothorax: a case-control study with review of the literature.

Background: Numerous ECG alterations due to pneumothorax have been reported. The objective of the study was to establish the presence of ECG changes associated with pneumothorax in the literature, and in a cohort of patients with proven pneumothorax compared with age- and sex-matched healthy controls.

Methods: A systematic review for ECG alterations associated with pneumothorax was performed.

[CME Sonography 100/Answers: Emergency Ultrasound of the Soft Tissues and the Musculoskeletal System].

CME Sonography 100/Answers: Emergency Ultrasound of the Soft Tissues and the Musculoskeletal System The term "emergency sonography" refers to a focused sonography in emergency situations, also called emergency "Point of Care Ultrasound (POCUS)". The attending physician applies it specifically and directly on the patient. As an indispensable part of the physical examination, emergency ultrasound helps to answer simple clinical questions.

[CME Sonography 100: Emergency Ultrasound of the Soft Tissues and the Musculoskeletal System].

CME Sonography 100: Emergency Ultrasound of the Soft Tissues and the Musculoskeletal System The term "emergency sonography" refers to a focused sonography in emergency situations, also called emergency "Point of Care Ultrasound (POCUS)". The attending physician applies it specifically and directly to the patient. As an indispensable part of the physical examination, emergency ultrasound helps to answer simple clinical questions.

[Sonographic Wall Changes of the Stone-Free Gall Bladder - a Diagnostic and Therapeutic Dilemma].

Sonographic Wall Changes of the Stone-Free Gall Bladder - a Diagnostic and Therapeutic Dilemma Various diseases frequently cause sonographic abnormalities of the gallbladder wall and its surroundings. The interpretation of these abnormalities is often a great challenge for the treating physician and will be briefly discussed here. In our patient these abnormalities are due to hepatitis A, which is responsible for multiple extrahepatic manifestations.

High-Quality Hexagonal Boron Nitride from 2D Distillation.

The production of high-quality two-dimensional (2D) materials is essential for the ultimate performance of single layers and their hybrids. Hexagonal boron nitride (-BN) is foreseen to become the key 2D hybrid and packaging material since it is insulating, impermeable, flat, transparent, and chemically inert, though it is difficult to attain in ultimate quality. Here, a scheme is reported for producing single layer -BN that shows higher quality in view of mosaicity and strain variations than material from chemical vapor deposition (CVD).

Point of care ultrasound for rapid assessment and treatment of palliative care patients in acute medical settings.

The combination of an ageing population with improving survival in malignant and non-malignant disease processes results in a growing cohort of patients with advanced or end-stage chronic diseases who require acute medical care. Emergency care has historically been stereotyped as the identification and treatment of acute life-threatening problems. Although palliative care may be considered to be new to the formal curriculum of emergency medicine, in many domains the ultrasound skillset of a physician in acute medical care can be efficaciously deployed the benefit of patients with both malignant and non-malignant disease processes that require palliative care in the full breadth of acute healthcare settings.

Influence of surface defect density on the ultrafast hot carrier relaxation and transport in [Formula: see text] photoelectrodes.

Cuprous oxide ([Formula: see text]) is a promising material for photoelectrochemical energy conversion due to its small direct band gap, high absorbance, and its Earth-abundant constituents. High conversion efficiencies require transport of photoexcited charges to the interface without energy loss. We studied the electron dynamics in [Formula: see text](111) by time-resolved two-photon photoemission for different surface defect densities in order to elucidate the influence on charge carrier transport.

[COVID-19 - More Lung Pocus and Sparing Use of Stethoscope, Chest X-Ray and Lung CT].

COVID-19 - More Lung Pocus and Sparing Use of Stethoscope, Chest X-Ray and Lung CT For an optimal management of COVID-19 (Coronary Virus Disease) we depend on a fast and reliable diagnosis and severity assessment. The gold standard so far is RT-PCR (reverse transcriptase polmerase chain reaction) from the nasopharyngeal smear. Current tests have a sensitivity of 60-90 %.

Kinetics of the Thermal Oxidation of Ir(100) toward IrO Studied by Ambient-Pressure X-ray Photoelectron Spectroscopy.

Using time-lapsed ambient-pressure X-ray photoelectron spectroscopy, we investigate the thermal oxidation of single-crystalline Ir(100) films toward rutile IrO(110) in situ. We initially observe the formation of a carbon-free surface covered with a complete monolayer of oxygen, based on the binding energies of the Ir 4f and O 1s core level peaks. During a rather long induction period with nearly constant oxygen coverage, the work function of the surface changes continuously as sensed by the gas phase O 1s signal.

Probing the solid-liquid interface with tender x rays: A new ambient-pressure x-ray photoelectron spectroscopy endstation at the Swiss Light Source.

A new endstation to perform operando chemical analysis at solid-liquid interfaces by means of ambient pressure x-ray photoelectron spectroscopy (APXPS) is presented. The endstation is located at the Swiss Light Source and can be attached to the soft x-ray in situ spectroscopy beamline (X07DB) for solid-gas type experiments and to a tender x-ray beamline (PHOENIX I) for solid-liquid interface experiments. The setup consists of three interconnected ultrahigh vacuum chambers: one for sample preparation using surface science techniques, the analysis chamber for APXPS experiments, and an entry-lock chamber for sample transfer across the two pressure regimes.

Elevated HbA1c is not associated with recurrent venous thromboembolism in the elderly, but with all-cause mortality- the SWEETCO 65+ study.

The association of glycated hemoglobin (HbA1c) with venous thromboembolism (VTE) and death in the elderly is unknown. In the SWEETCO 65+ study we analyzed prospectively a Swiss Cohort of Elderly Patients with Venous Thromboembolism (SWITCO 65+). 888 patients were enrolled for the SWEETCO 65+ analysis.

Combined orbital tomography study of multi-configurational molecular adsorbate systems.

Molecular reactivity is determined by the energy levels and spatial extent of the frontier orbitals. Orbital tomography based on angle-resolved photoelectron spectroscopy is an elegant method to study the electronic structure of organic adsorbates, however, it is conventionally restricted to systems with one single rotational domain. In this work, we extend orbital tomography to systems with multiple rotational domains.