Early embryonic development of the German cockroach Blattella germanica.

Background: Early embryogenesis is characterized by dramatic cell proliferation and movement. In most insects, early embryogenesis includes a phase called the uniform blastoderm, during which cells evenly cover the entirety of the egg. However, the embryo of the German cockroach, Blattella germanica, like those of many insects within the super order Polyneoptera, does not have a uniform blastoderm; instead, its first cells condense rapidly at the site of a future germband.

The moulting arthropod: a complete genetic toolkit review.

Exoskeletons are a defining character of all arthropods that provide physical support for their segmented bodies and appendages as well as protection from the environment and predation. This ubiquitous yet evolutionarily variable feature has been instrumental in facilitating the adoption of a variety of lifestyles and the exploitation of ecological niches across all environments. Throughout the radiation that produced the more than one million described modern species, adaptability afforded by segmentation and exoskeletons has led to a diversity that is unrivalled amongst animals.

Oh, the places you'll go! A qualitative study of resident career decisions in emergency medicine.

Objectives: Postresidency career choices are complex decisions that involve personal, professional, and financial preferences and may be influenced by training programs. It is unknown how residents navigate these decisions during emergency medicine (EM) residency. We explored EM residents' perspectives on career decision making and how residency programs can support career planning.

Nurse-focused ultrasound-guided IV program improves core emergency department process measures.

Introduction: Ultrasound-guided peripheral IV catheter (USGIV) insertion is as an effective procedure to establish access in patients with difficult intravenous access (DIVA), a condition frequently encountered in the Emergency Department (ED). This study describes a DIVA quality improvement program focusing on rapid identification of DIVA patients and emergency nurse USGIV training and evaluates its impact on overall frequency of USGIV use and process measures related to quality of patient care.

Methods: This is a retrospective cohort study of patients over 18 years of age, presenting to a single, tertiary care hospital between September 1, 2018 and September 30, 2020.