Point-of-care ultrasound diagnosis of acute valvular emergencies.

Introduction: Acute valvular emergencies, a time-sensitive diagnosis, are nearly impossible to diagnose without ultrasound, and missing the diagnosis can significantly impact patient outcomes. Many emergency physicians lack access to echo technicians and may be uncomfortable performing the ultrasound themselves. Approaching the paucity of review articles, none of which are focused for the emergency physician, can be quite daunting, even for those with extensive ultrasound training.

Use of Monoglycerides and Diglycerides to Mitigate Poultry Production Losses: A Review.

Consumer preference dictates not only what food is consumed but also how that food is produced. Ingredients in livestock feed that are not antibiotics, not genetically modified, and not of animal origin but that are nutrient-like tend to be more acceptable to consumers, retailers, and producers. Mono- and diglycerides (MDG) fit these criteria, are commonly used in food, and are generally recognized as safe.

Dehydrated Human Amnion-Chorion Membrane (Placenta) Reinforcement of Esophagectomy Anastomosis.

An anastomotic leak is a potentially fatal complication after esophagectomy. This report describes the use of a dehydrated human amnion-chorion membrane (dHACM) placenta allograft patch for reinforcement of an esophageal anastomosis. The anastomotic technique was a modified Orringer procedure through a right thoracotomy (Ivor Lewis procedure).

Myocarditis after BNT162b2 vaccination in a healthy male.

Myocarditis following mRNA COVID-19 vaccination has recently been reported to health authorities in the United States and other countries. Cases predominately occur in young adult males within four days following the second dose of either the Moderna (mRNA-1273) or Pfizer-BioNTech (BNT162b2) vaccines. Although the number of cases reported have been small in comparison with the large number of people vaccinated, myocarditis may be a rare adverse reaction to the COVID-19 vaccination that is now only becoming apparent due to the widespread use of the vaccine.

Preparing humanitarians to address ethical problems.

Infectious disease outbreaks represent potentially catastrophic threats to those affected by humanitarian crises. High transmissibility, crowded living conditions, widespread co-morbidities, and a lack of intensive care capacity may amplify the effects of the outbreak on already vulnerable populations and present humanitarian actors with intense ethical problems. We argue that there are significant and troubling gaps in ethical awareness at the level of humanitarian praxis.

WITHDRAWN: Dehydrated Human Amnion/Chorion Membrane (Placenta) Reduces Anastomotic Leaks after Esophagectomy.

This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.

Pneumonia in Nigeria: The way forward.

Pneumonia is the leading cause of child deaths in Nigeria. Interventions to combat pneumonia are known and globally available, but not yet deployed effectively in Nigeria. While the under-five pneumonia deaths dropped globally by 51% during the Millennium Development Goals (MDG) years (2000 to 2015), the rate declined by a mere 8% in Nigeria.

Spectral Sensitization of n- and p-Type Gallium Phosphide Single Crystals with Single-Walled Semiconducting Carbon Nanotubes.

The spectral sensitization of single-crystal p-GaP by semiconducting single-walled carbon nanotubes (s-SWCNT) via hole injection into the p-GaP valence band is reported. The results are compared to SWNCT sensitized n-type single-crystal substrates: TiO, SnO, and n-GaP. It was found that the sensitized photocurrents from CoMoCAT and HiPco s-SWCNTs were from a hole injection mechanism on all substrates, even when electron injection into the conduction band should be energetically favored.

Raised without antibiotics: impact on animal welfare and implications for food policy.

This study assesses the impact of broilers raised without antibiotics and the information gap that exists between consumer perception and production methods. Specifically looking at risk of eye burns, footpad lesions, and airsacculitis, key indicators of animal welfare, bird-level data are collected on the occurrence and severity of each disease state by the type of antibiotic program: no antibiotics ever, nonmedically important antibiotics, or medically important antibiotics. Odds ratios and marginal effects are calculated to understand how the occurrence and severity change with access to medicine.

Optically Generated Free-Carrier Collection from an All Single-Walled Carbon Nanotube Active Layer.

Semiconducting single-walled carbon nanotubes' (SWCNTs) broad absorption range and all-carbon composition make them attractive materials for light harvesting. We report photoinduced charge transfer from both multichiral and single-chirality SWCNT films into atomically flat SnO and TiO crystals. Higher-energy second excitonic SWCNT transitions produce more photocurrent, demonstrating carrier injection rates are competitive with fast hot-exciton relaxation processes.

Emerging Infectious Diseases: a Review.

Purpose Of Review: This review highlights some of the recent concerning emerging infectious diseases, a number of them specifically that the World Health Organization has categorized as priorities for research.

Recent Findings: Emerging and reemerging infectious diseases account for significant losses in not only human life, but also financially. There are a number of contributing factors, most commonly surrounding human behavior, that lead to disease emergence.

Double Hydrogen Bonding between Side Chain Carboxyl Groups in Aqueous Solutions of Poly (β-L-Malic Acid): Implication for the Evolutionary Origin of Nucleic Acids.

The RNA world hypothesis holds that in the evolutionary events that led to the emergence of life RNA preceded proteins and DNA and is supported by the ability of RNA to act as both a genetic polymer and a catalyst. On the other hand, biosynthesis of nucleic acids requires a large number of enzymes and chemical synthesis of RNA under presumed prebiotic conditions is complicated and requires many sequential steps. These observations suggest that biosynthesis of RNA is the end product of a long evolutionary process.

Treatment of 200 locally advanced (stage III) pancreatic adenocarcinoma patients with irreversible electroporation: safety and efficacy.

Objectives: Ablative therapies have been increasingly utilized in the treatment of locally advanced pancreatic cancer (LAPC). Irreversible electroporation (IRE) is an energy delivery system, effective in ablating tumors by inducing irreversible membrane destruction of cells. We aimed to demonstrate efficacy of treatment with IRE as part of multimodal treatment of LAPC.

Physical Models for Charge Transfer at Single Crystal Oxide Semiconductor Surfaces as Revealed by the Doping Density Dependence of the Collection Efficiency of Dye Sensitized Photocurrents.

The doping density dependence of photocurrents has been experimentally measured at single crystal rutile TiO2 electrodes sensitized with the N3 chromophore and a trimethine dye. As the doping density of the electrodes was varied from 10(15) to 10(20) cm(-3), three different regimes of behavior were observed for the magnitude and shape of the dye sensitized current-voltage curves. Low-doped crystals produced current-voltage curves with a slow rise of photocurrent with potential.

Creation of gastric conduit free-graft with intraoperative perfusion imaging during pancreaticoduodenectomy in a patient post esophagectomy.

As surgery becomes more successful for complicated malignancies, patients survive longer and can unfortunately develop subsequent malignancies. Surgical resection in these settings can be treacherous and manipulations of the patient's anatomy need to be closely considered before embarking on major operations. We report a case of a patient who survived esophageal resection for locally advanced esophageal cancer only to develop a new pancreatic head malignancy.

Retrospective comparison of robot-assisted minimally invasive versus open pancreaticoduodenectomy for periampullary neoplasms.

Background: As with other open procedures now routinely performed using laparoscopy, minimally invasive pancreaticoduodenectomy (MIPD) may result in decreased pain, fewer wound complications, and accelerated recovery. However, when used for periampullary cancers, it is also important to assess if MIPD offers comparable oncologic outcomes.

Methods: Technical and perioperative outcomes were compared between patients with a preoperative diagnosis of periampullary neoplasm offered MIPD or open pancreaticoduodenectomy (OPD) from November 2009 to July 2011.