Comparison of 6 handheld ultrasound devices by point-of-care ultrasound experts: a cross-sectional study.

Background: Point-of-care ultrasound (POCUS) has emerged as an essential bedside tool for clinicians, but lack of access to ultrasound equipment has been a top barrier to POCUS use. Recently, several handheld ultrasound devices ("handhelds") have become available, and clinicians are seeking data to guide purchasing decisions. Few comparative studies of different handhelds have been done.

Comparison of four handheld point-of-care ultrasound devices by expert users.

Background: Point-of-care ultrasound (POCUS) is rapidly becoming ubiquitous across healthcare specialties. This is due to several factors including its portability, immediacy of results to guide clinical decision-making, and lack of radiation exposure to patients. The recent growth of handheld ultrasound devices has improved access to ultrasound for many clinicians.

A concrete example of representational licensing: The Mississippi River Basin Model.

Previously, I (Boesch 2017) described a notion called "representational licensing"-the set of activities of scientific practice by which scientists establish the intended representational use of a vehicle. In this essay, I expand and develop this concept of representational licensing. I begin by showing how the concept is of value for both pragmatic and substantive approaches to scientific representation.

Point-of-Care Ultrasound for Hospitalists: A Position Statement of the Society of Hospital Medicine.

Many hospitalists incorporate point-of-care ultrasound (POCUS) into their daily practice to answer specific diagnostic questions or to guide performance of invasive bedside procedures. However, standards for hospitalists in POCUS training and assessment are not yet established. Most internal medicine residency training programs, the major pipeline for incoming hospitalists, have only recently begun to incorporate POCUS in their curricula.

Pseudo liposarcomatous plasma cells in a patient with liposarcoma and lymphoplasmacytic lymphoma.

First, patients may always develop a second severe illness, even a second cancer. Second, things are not always as they are expected to be. So, careful diagnosis is mandatory.

When cancer patients suddenly have a positive pregnancy test.

We present the case of non-small cell lung cancer (NSCLC) in a 48-year-old woman with an active history of smoking. The patient initially presented to her general practitioner with a progressive swelling on the neck. Further investigations diagnosed a metastatic lung tumour, and palliative chemotherapy was started.

Stoichiometric interpretation of Escherichia coli glucose catabolism under various oxygenation rates.

Metabolic by-product secretion is commonly observed in oxygen-limited cultures. Oxygen limitations occur because of limits in the capacity of the respiratory system or because of the oxygenation limits of the cultivation method used. The latter restriction is of considerable practical importance since it results in a critical cell concentration above which oxygenation is insufficient, leading to by-product secretion.

Biochemical production capabilities of Escherichia coli.

Microbial metabolism provides at mechanism for the conversion of substrates into useful biochemicals. Utilization of microbes in industrial processes requires a modification of their natural metabolism in order to increase the efficiency of the desired conversion. Redirection of metabolic fluxes forms the basis of the newly defined field of metabolic engineering.