Colloidal Multi-Dot Nanorods.

Colloidal nanorod heterostructures consisting of multiple quantum dots within a nanorod (-DNRs, where is the number of quantum dots within a nanorod) are synthesized with alternating segments of CdSe "dot" and CdS "rod" via solution heteroepitaxy. The reaction temperature, time dependent ripening, and asymmetry of the wurtzite lattice and the resulting anisotropy of surface ligand steric hindrance are exploited to vary the morphology of the growing quantum dot segments. The alternating CdSe and CdS growth steps can be easily repeated to increment the dot number in unidirectional or bidirectional growth regimes.

Retraction of "Hydrogenolysis of Polyethylene and Polypropylene into Propane over Cobalt-Based Catalysts".

[This retracts the article DOI: 10.1021/jacsau.2c00402.

"I Hate Sim!"-Using Psychotherapeutic Concepts to Help Educators Attend to Challenging States of Mind During Simulation Prebriefs.

This article outlines the theoretical development of an approach to simulation prebriefing that we have adopted at Great Ormond Street Children's Hospital. Many educators struggle with anxious or reticent learners during simulation. This reticence often becomes apparent first during the simulation prebrief.

Cowpox in zoo and wild animals in the United Kingdom.

Cowpox virus is considered to be a re-emerging zoonotic pathogen and a public health threat due to increasing numbers of cases in humans and animals in Europe over the past decade, including within the United Kingdom (UK). We present epidemiological data and diagnostic features of 27 recent, naturally occurring cowpox cases in zoo and wild animals across the UK, including the first reports of cowpox in two snow leopards (Panthera uncia), a Bengal tiger (Panthera tigris tigris), three Chilean pudus (Pudu puda), a Malayan tapir (Tapirus indicus) and a Eurasian otter (Lutra lutra), and the first reports of Orthopoxvirus infection in a lar gibbon (Hylobates lar), a Southern tamandua (Tamandua tetradactyla) and an aardvark (Orycteropus afer). This study provides a detailed overview of cowpox infections in a wide range of non-domestic animal species, presents a range of methods for diagnosis and demonstrates the value of retrospective analysis of pathology surveillance in revealing epidemiological links.

Improving photovoltaic performance of light-responsive double-heterojunction nanorod light-emitting diodes.

Double heterojunction nanorods enable both electroluminescence and light harvesting capabilities within the same device structure, providing a promising platform for energy-scavenging displays and related applications. However, the efficiency of the photovoltaic mode remains modest for useful power conversion and may be challenging to improve without sacrificing performance in electroluminescence. Through a facile on-film partial ligand exchange with benzenethiol integrated into the device fabrication step, we achieve an average of more than threefold increase in power conversion efficiency while maintaining the maximum external quantum efficiency and the maximum luminance in the LED mode.

Disruption, Slowness, and Collective Effervescence: Children's Perspectives on COVID-19 Lockdowns.

The COVID-19 pandemic represented not only a health crisis, but a social crisis for children, one that has disrupted notions of what a good childhood is. However, the longer-term implications of the pandemic are still to be seen, for children, their families and communities. This article is concerned with what these ongoing changes may be, based on a qualitative multi-stage study that asks children about their experiences of well-being before the pandemic, during lockdowns and post-COVID-19 lockdowns.

AMYLOIDOSIS IN CAPTIVE EUROPEAN EASTERN BONGO (): PREVALENCE, PREDICTIVE FACTORS, ORGAN PREDILECTION, AND SERUM AMYLOID A CONCENTRATIONS.

Amyloidosis is frequently identified during postmortem examination of captive eastern bongo () in the European Endangered Species Programme (EEP). However, its significance and etiopathogenesis are poorly understood. The objective of this study was to investigate the prevalence of amyloidosis within this population and identify potential predictive factors for the presence of disease.

Hydrogenolysis of Polyethylene and Polypropylene into Propane over Cobalt-Based Catalysts.

The development of technologies to recycle polyethylene (PE) and polypropylene (PP), globally the two most produced polymers, is critical to increase plastic circularity. Here, we show that 5 wt % cobalt supported on ZSM-5 zeolite catalyzes the solvent-free hydrogenolysis of PE and PP into propane with weight-based selectivity in the gas phase over 80 wt % after 20 h at 523 K and 40 bar H. This catalyst significantly reduces the formation of undesired CH (≤5 wt %), a product which is favored when using bulk cobalt oxide or cobalt nanoparticles supported on other carriers (selectivity ≤95 wt %).

Design Principles of Colloidal Nanorod Heterostructures.

Anisotropic heterostructures of colloidal nanocrystals embed size-, shape-, and composition-dependent electronic structure within variable three-dimensional morphology, enabling intricate design of solution-processable materials with high performance and programmable functionality. The key to designing and synthesizing such complex materials lies in understanding the fundamental thermodynamic and kinetic factors that govern nanocrystal growth. In this review, nanorod heterostructures, the simplest of anisotropic nanocrystal heterostructures, are discussed with respect to their growth mechanisms.

A Rare Occurrence of Phantom Tongue Pain.

This is a case of phantom tongue pain observed in a 65-year-old male with a history of adenoid cystic carcinoma with involvement of the base of the tongue and supraglottic laryngopharyngeal cancer who underwent a laryngopharyngectomy and glossectomy for treatment. The patient subsequently developed phantom tongue pain in acute rehabilitation. Post total glossectomy phantom pain is rare, and as this is a singular appendage, current techniques that rely on the presence of an intact limb, such as mirror therapy could not be applied to our patient.

RF shielding designs for birdcage coils for preclinical MRI at 9.4 T.

Birdcage coils are widely used in preclinical MRI as they perform well, allow for quadrature drive, and can provide a homogeneous transmit field. Unlike in larger bore scanners, an RF shield is essential to avoid strong cross-talk with gradient coils that are in close proximity. However, gradient switching induces eddy currents that heat the shield and coil and impair the temporal signal-to-noise ratio (tSNR).

Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC.

DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6   6   6 m liquid argon time-projection-chamber (LArTPC) that recorded cosmic-muon data at the CERN Neutrino Platform in 2019-2020 as a prototype of the DUNE Far Detector. Charged particles propagating through the LArTPC produce ionization and scintillation light.

Measurement of a helium tune-out frequency: an independent test of quantum electrodynamics.

Despite quantum electrodynamics (QED) being one of the most stringently tested theories underpinning modern physics, recent precision atomic spectroscopy measurements have uncovered several small discrepancies between experiment and theory. One particularly powerful experimental observable that tests QED independently of traditional energy level measurements is the "tune-out" frequency, where the dynamic polarizability vanishes and the atom does not interact with applied laser light. In this work, we measure the tune-out frequency for the 2 state of helium between transitions to the 2 and 3 manifolds and compare it with new theoretical QED calculations.

Elephant Endotheliotropic Herpesvirus 4 and Type C Fatal Co-Infection in an Adult Asian Elephant ().

Elephant endotheliotropic herpesvirus hemorrhagic disease (EEHV-HD) is an acute, often fatal, multisystemic hemorrhagic disease and one of the most significant causes of mortality of Asian elephants in captivity. Most fatal cases of EEHV-HD are associated with EEHV1A and EEHV1B in juveniles. This case report describes the clinical and pathological features of a fatal co-infection of type C and EEHV-HD, caused by EEHV4, in an adult female Asian elephant.

Consumer involvement in research - parent perceptions of partnership in cerebral palsy research: a qualitative study.

Purpose: Identify perceptions of parents and caregivers of children with cerebral palsy about being consumer research partners and identify strategies to inform involvement of parents in cerebral palsy research.

Materials And Methods: Twenty-two parents in New South Wales and Victoria (Australia) participated in this qualitative study. Seven interviews and three focus groups were completed.

The impact of COVID-19 on the spatial distribution of shooting violence in Buffalo, NY.

Objectives: This paper examines the extent to which hotspots of shooting violence changed following the emergence of COVID-19.

Methods: This analysis uses Andresen's Spatial Point Pattern test on 1500 by 1500 foot grid cells, correcting for multiple comparisons, on a 10-year sample of geocoded shooting data from Buffalo New York.

Results: This work finds zero micro-grid cells are not statistically different from pre to post COVID stay at home orders and instead that the observed rise in shootings in the sample appears to be a consistent proportional increase across the city.

Design and construction of an interchangeable RF coil system for rodent spinal cord MR imaging at 9.4 T.

Rodent models of spinal cord injury (SCI) have been widely used in pre-clinical studies. Injuries may occur at different levels of the lumbar and thoracic cord, and the number of segments injured and their depths may vary along the spine. It is thereby challenging to build one universal RF coil that exhibits optimal performance for all spinal cord imaging applications, especially in an animal scanner with small in-bore space and limited hardware configurations.

Minimal artifact actively shimmed metallic needles in MRI.

Purpose: Signal voids caused by metallic needles pose visualization and monitoring challenges in many MRI applications. In this work, we explore a solution to this problem in the form of an active shim insert that fits inside a needle and corrects the field disturbance (ΔB ) caused by the needle outside of it.

Methods: The ΔB induced by a 4 mm outside-diameter titanium needle at 3T is modeled and a two-coil orthogonal shim set is designed and fabricated to shim the ΔB .

Simplify your life.

Within the Hartree atomic unit systems, the Schrödinger equation becomes parameter free. But there's more to it than making a student's life easier, as Gordon Drake and Eite Tiesinga recount.

Perspectives of children and adolescents with cerebral palsy about involvement as research partners: a qualitative study.

Purpose: Children and adolescents with cerebral palsy have diverse needs and often engage with healthcare services, including paediatric rehabilitation. Partnering with these children and adolescents on research projects to inform practice has the potential to ensure services continue to remain relevant and appropriate. This study aimed to identify what children and adolescents with cerebral palsy suggest are effective ways for researchers to involve them as partners in research.

Optimization of a quadrature birdcage coil for functional imaging of squirrel monkey brain at 9.4T.

A quadrature transmit/receive birdcage coil was optimized for squirrel monkey functional imaging at the high field of 9.4 T. The coil length was chosen to gain maximum coil efficiency/signal-to-noise ratio (SNR) and meanwhile provide enough homogenous RF field in the whole brain area.

Nectarivorous Bird Emphysematous Ingluvitis (NBEI): A Novel Disease in Loriinae Birds Associated With Infection.

A retrospective study revealed ten cases of emphysematous ingluvitis in Loriinae birds from two zoological collections between 2009 and 2020. Common clinical features were sudden death with gas distention of the crop, subcutaneous cervical emphysema and poor body condition, but also included collapse, hypothermia and abandonment. Macroscopic examination revealed moderate crop enlargement, distention and thickening with minimal intraluminal content, and moderate to severe submucosal to transmural gas-filled cysts (emphysema).

Precision Calculation of Hyperfine Structure and the Zemach Radii of ^{6,7}Li^{+} Ions.

The hyperfine structures of the 2^{3}S_{1} states of the ^{6}Li^{+} and ^{7}Li^{+} ions are investigated theoretically to extract the Zemach radii of the ^{6}Li and ^{7}Li nuclei by comparing with precision measurements. The obtained Zemach radii are larger than the previous values of Puchalski and Pachucki [Phys. Rev.