Efficient Europium Sensitization via Low-Level Doping in a 2-D Bismuth-Organic Coordination Polymer.

A new bismuth-organic compound containing 1,10-phenanthroline (phen) and 2,5-pyridinedicarboxylic acid (PDC) was synthesized and structurally characterized by single-crystal X-ray diffraction. The structure consists of 2-D {Bi(phen)(HPDC)(PDC)} sheets wherein the PDC ligands bridge metal centers via three unique bonding modes. The 2-D sheets are further connected through strong hydrogen-bonding interactions to form a 3-D supramolecular network.

Synthesis and Characterization of Cerium-Oxo Clusters Capped by Acetylacetonate.

Cerium-oxo clusters have applications in fields ranging from catalysis to electronics and also hold the potential to inform on aspects of actinide chemistry. Toward this end, a cerium-acetylacetonate (acac) monomeric molecule, Ce(acac) (), and two acac-decorated cerium-oxo clusters, [CeO(acac)(CHO)(CHOH)]·10.5MeOH () and [CeO(OH)(acac)(CHCOO)]·6(CHCN) (), were prepared and structurally characterized.

Outcomes up to age 36 months after congenital Zika virus infection-U.S. states.

Background: To characterize neurodevelopmental abnormalities in children up to 36 months of age with congenital Zika virus exposure.

Methods: From the U.S.

Effects of neurotransmitter receptor antagonists on sea urchin righting behavior and tube foot motility.

Echinoderms, such as sea urchins, occupy an interesting position in animal phylogeny in that they are genetically closer to vertebrates than the vast majority of all other invertebrates but have a nervous system that lacks a brain or brain-like structure. Despite this, very little is known about the neurobiology of the adult sea urchin, and how the nervous system is utilized to produce behavior. Here, we investigated effects on the righting response of antagonists of ionotropic receptors for the neurotransmitters acetylcholine, GABA and glycine, and antagonists of metabotropic receptors for the amines dopamine and noradrenaline (norepinephrine).

Association of Preterm Birth Rate With COVID-19 Statewide Stay-at-Home Orders in Tennessee.

This cohort study analyzes preterm birth rates during statewide stay-at-home orders in Tennessee during the coronavirus disease 2019 (COVID-19) pandemic.

Improved respiratory motion tracking through a novel fiducial marker placement guidance system during electromagnetic navigational bronchoscopy (ENB).

Background: Stereotactic ablative radiotherapy (SABR) is a treatment option for patients with early stage non-small cell lung cancer (NSCLC) and recurrent or oligometastatic disease who are not surgical candidates. Due to the continuous motion of tumors within the lungs, implementing a strategy to track the target lesion is crucial. One method is to place fiducial markers which the robotic SABR system is able to track during treatment.

Improving Safe Sleep Modeling in the Hospital through Policy Implementation.

Introduction Sleep-related infant deaths are major contributors to Tennessee's high infant mortality rate. The purpose of this initiative was to evaluate the impact of policy-based efforts to improve modeling of safe sleep practices by health care providers in hospital settings across Tennessee. Methods Safe sleep policies were developed and implemented at 71 hospitals in Tennessee.

Perioperative medical comorbidities in the orthopaedic patient.

Evaluation and management of medical comorbidities in the perioperative period can help improve surgical morbidity and mortality. Perioperative evaluation essentially is risk assessment and minimization. Patients undergoing orthopaedic treatment may benefit from temporizing measures to reduce systemic complications associated with some procedures.

Thymic carcinoma in a child with HIV infection.

HIV infection predisposes to cancer during childhood. In addition to the AIDS-defining non-Hodgkin lymphoma (NHL) and Kaposi sarcoma, a range of other lymphoid malignancies and solid tumors have been described. We report the first case of an HIV-positive child with thymic carcinoma in the setting of regressing thymic cysts.

Patients' willingness to allow residents to learn to practice medical procedures.

Purpose: Consent for teaching procedures has been the focus of ethical discussion recently. Patients may consent to a procedure but be unaware that the procedure is to be performed by a resident, perhaps for the first time. In such cases, patients have not specifically consented to the practice of teaching medical procedures.