Successful Direct Current Cardioversion (DCCV) in Pregnancy in a Non-Obstetric Emergency Department.

Atrial Fibrillation (AF) is uncommon in pregnancy but associated with significant mortality. Although controlled studies evaluating therapeutic management of AF in pregnancy are lacking, current guidelines suggest that direct current cardioversion (DCCV) is safe in cases of maternal arrhythmia with hemodynamic compromise. In this report, we discuss a female patient of 22 weeks gestation who presented to the non-obstetric Emergency Department (ED) with acute onset, symptomatic AF.

Synergizing FeO Nanoparticles on Single Atom Fe-N-C for Nitrate Reduction to Ammonia at Industrial Current Densities.

The electrochemical reduction of nitrates (NO ) enables a pathway for the carbon neutral synthesis of ammonia (NH), via the nitrate reduction reaction (NORR), which has been demonstrated at high selectivity. However, to make NH synthesis cost-competitive with current technologies, high NH partial current densities (j) must be achieved to reduce the levelized cost of NH. Here, the high NORR activity of Fe-based materials is leveraged to synthesize a novel active particle-active support system with FeO nanoparticles supported on atomically dispersed Fe-N-C.

Chemical Kinetic Method for Active-Site Quantification in Fe-N-C Catalysts and Correlation with Molecular Probe and Spectroscopic Site-Counting Methods.

Mononuclear Fe ions ligated by nitrogen (FeN) dispersed on nitrogen-doped carbon (Fe-N-C) serve as active centers for electrocatalytic O reduction and thermocatalytic aerobic oxidations. Despite their promise as replacements for precious metals in a variety of practical applications, such as fuel cells, the discovery of new Fe-N-C catalysts has relied primarily on empirical approaches. In this context, the development of quantitative structure-reactivity relationships and benchmarking of catalysts prepared by different synthetic routes and by different laboratories would be facilitated by the broader adoption of methods to quantify atomically dispersed FeN active centers.

Innovations, adaptations, and accelerations in the delivery of HIV services during COVID-19.

During 2020, the COVID-19 pandemic disrupted the delivery of HIV prevention and treatment services globally. To mitigate the negative consequences of the pandemic, service providers and communities adapted and accelerated an array of HIV interventions to meet the needs of people living with HIV and people at risk of acquiring HIV in diverse geographical and epidemiological settings. As a result of these adaptations, services such as HIV treatment showed programmatic resilience and remained relatively stable in 2020 and into the first half of 2021.

Protocol for rapid ammonia detection via surface-enhanced Raman spectroscopy.

As a key industrial nitrogenous product and a critical environmental pollutant, ammonia broadly affects our daily lives. Rapid and sensitive detection of ammonia is essential to both environmental monitoring and process control for industrial manufacturing. Here, we present a protocol for rapid detection of low amounts of ammonia in the aqueous phase, via surface-enhanced Raman spectroscopy.

What will it take to end AIDS in Asia and the Pacific region by 2030?

The 2016 global commitments towards ending the AIDS epidemic by 2030 require the Asia-Pacific region to reach the Fast-Track targets by 2020. Despite early successes, the region is well short of meeting these targets. The overall stalled progress in the HIV response has been further undermined by rising new infections among young key populations and the unprecedented COVID-19 pandemic.

Regulatory encoding of quantitative variation in spatial activity of a enhancer.

Developmental enhancers control the expression of genes prefiguring morphological patterns. The activity of an enhancer varies among cells of a tissue, but collectively, expression levels in individual cells constitute a spatial pattern of gene expression. How the spatial and quantitative regulatory information is encoded in an enhancer sequence is elusive.

Fast-tracking the end of HIV in the Asia Pacific region: domestic funding of key population-led and civil society organisations.

Ending AIDS in Asia Pacific by 2030 requires countries to give higher priority to financing community-based and key population-led service delivery. Mechanisms must be developed for civil society organisations to deliver health and HIV/AIDS services for key populations, especially men who have sex with men, and transgender people, within national health policy frameworks. Current investments in the HIV response in the Asia Pacific region reflect inadequate HIV financing for key populations, particularly for civil society and key population-led organisations that are optimally positioned to advance HIV epidemic control.

Evolution of the health sector response to HIV in Myanmar: progress, challenges and the way forward.

Critical building blocks for the response to HIV were made until 2012 despite a series of political, social and financial challenges. A rapid increase of HIV service coverage was observed from 2012 to 2015 through collaborative efforts of government and non-governmental organisations (NGOs). Government facilities, in particular, demonstrated their capacity to expand services for antiretroviral therapy (ART), prevention of mother-to-child transmission (PMTCT) of HIV, tuberculosis and HIV co-infection and methadone-maintenance therapy (MMT).

Space-qualified laser system for the BepiColombo Laser Altimeter.

The space-qualified design of a miniaturized laser for pulsed operation at a wavelength of 1064 nm and at repetition rates up to 10 Hz is presented. This laser consists of a pair of diode-laser pumped, actively q-switched Nd:YAG rod oscillators hermetically sealed and encapsulated in an environment of dry synthetic air. The system delivers at least 300 million laser pulses with 50 mJ energy and 5 ns pulse width (FWHM).

The Dublin cardiac arrest registry: temporal improvement in survival from out-of-hospital cardiac arrest reflects improved pre-hospital emergency care.

Aims: Out-of-hospital cardiac arrest (OOHCA) survival remains poor, estimated at 3-7%. We aim to describe the incidence of OOHCA, survival from OOHCA, and the impact of improved pre-hospital care on survival from OOHCA.

Methods And Results: A retrospective registry was established using multi-source information to assess survival from cardiac arrest following the introduction of several improvements in pre-hospital emergency medical care from 2003.

Evaluation and management of TMDs, Part 1. History, epidemiology, classification, anatomy, and patient evaluation.

The study of temporomandibular disorders has undergone many changes throughout its history. Focus on the structure and function of the TMJ continues to improve our understanding of these complex disorders. A more standardized classification system allows practitioners and researchers to discuss findings in a common language.

Novel routes to Cu(salicylaldimine) covalently bound to silica: combined pulse EPR and in situ attenuated total reflection-IR studies of the immobilization.

Several novel routes for the immobilization of modified Cu(salicylaldimine) complexes on commercially available silica are described. New pulse electron paramagnetic resonance (EPR) and electron-nuclear double resonance sequences, which provide more detailed information than that available previously, in combination with continuous wave EPR, allow a definitive assignment of the geometry at the copper center in the immobilized Cu(salicylaldimine). Immobilization of the modified Cu(salicylaldimine) on silica was followed in situ by monitoring the intensity of the characteristic free- and metal-coordinated imine bands as a function of time using attenuated total reflectance IR spectroscopy.

First Mixed Fluoro-Chloro Group 4 Organometallics: Synthesis and Spectroscopic and Structural Characterization of [{(C(5)Me(5))ZrF(2)Cl}(4)], [{(C(5)Me(5))HfF(2)Cl}(4)], [(C(5)Me(5))(4)Zr(4)(&mgr;-F)(2)(&mgr;-F(2))(2)(&mgr;-Cl)(2)Cl(4)], [(C(5)Me(5))(4)Hf(4)(&mgr;-F)(2)(&mgr;-F(2))(2)(&mgr;-Cl)(2)Cl(4)], [(C(5)Me(4)Et)(2)ZrClF], and [(C(5)Me(5))(2)HfClF].

Tetrameric [{(C(5)Me(5))MF(3)}(4)] (M = Zr, Hf) react smoothly with Me(3)SiCl in CH(2)Cl(2) at room temperature to give [{(C(5)Me(5))ZrF(2)Cl}(4)] (1) and [{(C(5)Me(5))HfF(2)Cl}(4)] (2), respectively, in high yield. Treatment of [{(C(5)Me(5))MF(3)}(4)] (M = Zr, Hf) with Me(2)AlCl in toluene gives mixtures of 1 and [(C(5)Me(5))(4)Zr(4)(&mgr;-F)(2)(&mgr;-F(2))(2)(&mgr;-Cl)(2)Cl(4)] (3), and 2 and [(C(5)Me(5))(4)Hf(4)(&mgr;-F)(2)(&mgr;-F(2))(2)(&mgr;-Cl)(2)Cl(4)] (4), respectively, in an approximately 1:1 molar ratio. Metallocene type complexes [(C(5)Me(4)Et)(2)ZrCl(2)] and [(C(5)Me(5))(2)HfCl(2)] react with 1 equiv of Me(3)SnF to give [(C(5)Me(4)Et)(2)ZrClF] (5) and [(C(5)Me(5))(2)HfClF] (6), respectively.