Untying the Cesium "Not": Cesium-Iodoplumbate Complexation in Perovskite Solution-Processing Inks Has Implications for Crystallization.

We illustrate the critical importance of the energetics of cation-solvent versus cation-iodoplumbate interactions in determining the stability of ABX perovskite precursors in a dimethylformamide (DMF) solvent medium. We have shown, through a complementary suite of nuclear magnetic resonance (NMR) and computational studies, that Cs exhibits significantly different solvent vs iodoplumbate interactions compared to organic A-site cations such as CHNH (MA). Two NMR studies were conducted: Cs NMR analysis shows that Cs and MA compete for coordination with PbI in DMF.

Enhancing the Permselectivity of Thin-Film Composite Membranes Interlayered with MoS Nanosheets via Precise Thickness Control.

The demand for highly permeable and selective thin-film composite (TFC) nanofiltration membranes, which are essential for seawater and brackish water softening and resource recovery, is growing rapidly. However, improving and tuning membrane permeability and selectivity simultaneously remain highly challenging owing to the lack of thickness control in polyamide films. In this study, we fabricated a high-performance interlayered TFC membrane through classical interfacial polymerization on a MoS-coated polyethersulfone substrate.

A gender lens is needed in hepatitis C elimination research.

The World Health Organisation has established a goal of eliminating the hepatitis C virus (HCV) as a public health threat by 2030. Considerable effort is being directed towards research to support and enhance HCV treatment uptake among people who inject drugs, but there is a distinct lack of attention given to gender in this work. We argue that a gender lens is needed to make visible the limitations of current HCV elimination research, and support the development of innovative, inclusive approaches to HCV treatment.

Post-acute long-term care COVID-19 medication optimization survey: Informing medication management initiatives.

The Medication Management Guide (MMG) provides guidance on strategies to optimize medication management in PA-LTC and simplify administration to reduce the transmission risk of COVID-19. The objectives of this study were to evaluate the utility of the MMG, determine the barriers and facilitators of the MMG implementation in PALTC sites to help inform future research and initiatives. Individuals who accessed MMG during the pandemic (April 2020-March 2021) were contacted to elicit feedback on this tool via an online survey.

Study on identification, assay and organoleptic quality of veterinary medicines in Ethiopia.

Background: Medicines of poor quality are currently prevailing problems undermining the quality of health care services in veterinary and human medicine. In this study, physico-chemical quality of veterinary medicines was evaluated.

Methods: A total of 959 veterinary medicines samples were collected during routine regulatory activities, i.

Emergency Laparotomy.

Emergency laparotomy is a high-risk surgical procedure with mortality and morbidity up to 10 times higher than for a similar procedure performed electively. An enhanced recovery approach has been shown to improve outcomes. A focus on rapid correction of underlying deranged acute physiology and proactive management of conditions associated with aging such as frailty and delirium are key.

Utility of a Recombinant HSV-1 Vaccine Vector for Personalized Cancer Vaccines.

Current approaches to cancer immunotherapy include immune checkpoint inhibitors, cancer vaccines, and adoptive cellular therapy. These therapies have produced significant clinical success for specific cancers, but their efficacy has been limited. Oncolytic virotherapy (OVT) has emerged as a promising immunotherapy for a variety of cancers.

Examining the cost and impact of dosing fees among clients in opioid agonist treatment: Results from a cross-sectional survey of Australian treatment clients.

Introduction: Opioid agonist treatment (OAT) clients frequently bear costs associated with their treatment, including dosing fees. This study aimed to explore the financial and social impact of dosing fees upon clients.

Methods: Cross-sectional survey of people who use opioids regularly (N = 402) between December 2017 and March 2018, conducted in Australia.

The impact of COVID-19 on the LGBTQ+ community: Comparisons between cisgender, heterosexual people, cisgender sexual minority people, and gender minority people.

There is a dearth of public health data and research focusing on lesbian, gay, bisexual, transgender, queer, and other sexual and gender minority (LGBTQ+) populations during the coronavirus ("COVID") pandemic. This study evaluated how COVID has impacted health, social, and occupational areas of functioning of the LGBTQ+ community. A community survey was distributed via email by local LGBTQ+ community organizations between September and December 2020.

Intimate Partner Violence and Mental Health Outcomes Among Hispanic Women in the United States: A Scoping Review.

Hispanic women in the United States experience disproportionate mental health impacts of intimate partner violence (IPV). Following the preferred reporting items for systematic reviews and meta-analyses extension for scoping reviews guidelines, we synthesized the existing knowledge based on IPV and mental health outcomes among Hispanic women in the United States. In May 2020, we searched five electronic databases (i.

Update on CVD 103-HgR single-dose, live oral cholera vaccine.

Cholera remains endemic in >50 countries, putting millions at risk, especially young children for whom killed vaccines offer limited protection. An oral, live attenuated vaccine - CVD 103-HgR (Vaxchora vaccine) - was licensed by the US FDA in 2016 for adults aged 18-64 years traveling to endemic regions, based on clinical trials in human volunteers showing the vaccine was well tolerated and conferred 90% efficacy within 10 days. The evidence base for Vaxchora vaccine has expanded with additional clinical trial data, in older adults (aged 46-64 years) and children (aged 2-17 years), demonstrating that the vaccine produces a strong vibriocidal antibody response.

Outcomes of a single-arm implementation trial of extended-release subcutaneous buprenorphine depot injections in people with opioid dependence.

Background: Opioid agonist treatment (OAT) is an effective intervention for opioid dependence. Extended-release buprenorphine injections (BUP-XR) may have additional potential benefits over sublingual buprenorphine. This single-arm trial evaluated outcomes among people receiving 48 weeks of BUP-XR in diverse community healthcare settings in Australia, permitting examination of outcomes when BUP-XR is delivered in standard practice.

Genetic Dissection of Grain Yield Component Traits Under High Nighttime Temperature Stress in a Rice Diversity Panel.

To dissect the genetic complexity of rice grain yield (GY) and quality in response to heat stress at the reproductive stage, a diverse panel of 190 rice accessions in the United States Department of Agriculture (USDA) rice mini-core collection (URMC) diversity panel were treated with high nighttime temperature (HNT) stress at the reproductive stage of panicle initiation. The quantifiable yield component response traits were then measured. The traits, panicle length (PL), and number of spikelets per panicle (NSP) were evaluated in subsets of the panel comprising the rice subspecies ssp.

Temporal Coordination in Piano Duet Networked Music Performance (NMP): Interactions Between Acoustic Transmission Latency and Musical Role Asymmetries.

Today's audio, visual, and internet technologies allow people to interact despite physical distances, for casual conversation, group workouts, or musical performance. Musical ensemble performance is unique because interaction integrity critically depends on the timing between each performer's actions and when their acoustic outcomes arrive. Acoustic transmission latency (ATL) between players is substantially longer for networked music performance (NMP) compared to traditional in-person spaces where musicians can easily adapt.

Untying the Gordian KNOT: Unbiased Single Particle Tracking Using Point Clouds and Adaptive Motion Analysis.

Achieving mechanistic understanding of transport in complex environments such as inside cells or at polymer interfaces is challenging. We need better ways to image transport in 3-D and better single particle tracking algorithms to determine transport that are not systemically biased toward any classical motion model. Here we present an unbiased single particle tracking algorithm: Knowing Nothing Outside Tracking (KNOT).

Elective nodal ultra hypofractionated radiation for prostate cancer: Safety and efficacy from four prospective clinical trials.

Background And Purpose: The role of elective nodal irradiation (ENI) in localized prostate cancer (PCa) is controversial. With increasing use of SBRT to the prostate, data is needed regarding the safety and efficacy of ENI using ultra-hypofractionated radiation (UHRT).

Materials And Methods: Between 2013-2020, 4 prospective clinical trials of intermediate or high-risk PCa receiving dose-escalated RT to the prostate (via HDR brachytherapy or SBRT boost) and ENI using UHRT (25 Gy in 5 weekly fractions) were conducted.

Perceived helpfulness of treatment for generalized anxiety disorder: a World Mental Health Surveys report.

Background: Treatment guidelines for generalized anxiety disorder (GAD) are based on a relatively small number of randomized controlled trials and do not consider patient-centered perceptions of treatment helpfulness. We investigated the prevalence and predictors of patient-reported treatment helpfulness for DSM-5 GAD and its two main treatment pathways: encounter-level treatment helpfulness and persistence in help-seeking after prior unhelpful treatment.

Methods: Data came from community epidemiologic surveys in 23 countries in the WHO World Mental Health surveys.

Life is a mobius strip.

If you cut a mobius strip in half, the edges form a Trefoil Knot, which can be untied to form a circle, proving it's a true mathematical knot. The cell is a homologue of the mathematical knot since it, too, must be able to unknot itself to form the egg and sperm meiotically in order to reproduce. The homology between a knot and a cell is thought-provoking biologically because the Trefoil Knot is a metaphor for the endoderm, ectoderm and mesoderm, the three germ layers of the gastrula that ultimately produce the embryo, beginning with the zygote.

Comparative Whole Genome Sequence Analysis and Biological Features of Sequence Type 2.

sequence type 2 (ST2) has been increasingly recognized as one of the major genotypes in China, while the genomic characteristics and biological phenotypes of Chinese ST2 strains remain to be determined. We used whole-genome sequencing and phylogenetic analysis to investigate the genomic features of 182 ST2 strains, isolated between 2011 and 2017. PCR ribotyping (RT) was performed, and antibiotic resistance, toxin concentration, and sporulation capacity were measured.

An intensive model of care for hepatitis C virus screening and treatment with direct-acting antivirals in people who inject drugs in Nairobi, Kenya: a model-based cost-effectiveness analysis.

Background And Aims: Hepatitis C virus (HCV) treatment is essential for eliminating HCV in people who inject drugs (PWID), but has limited coverage in resource-limited settings. We measured the cost-effectiveness of a pilot HCV screening and treatment intervention using directly observed therapy among PWID attending harm reduction services in Nairobi, Kenya.

Design: We utilized an existing model of HIV and HCV transmission among current and former PWID in Nairobi to estimate the cost-effectiveness of screening and treatment for HCV, including prevention benefits versus no screening and treatment.

Non-Covalent Carrier Hydrophobicity as a Universal Predictor of Intracellular Protein Activity.

Over the past decade, extensive optimization of polymeric cell-penetrating peptide (CPP) mimics (CPPMs) by our group has generated a substantial library of broadly effective carriers which circumvent the need for covalent conjugation often required by CPPs. In this study, design rules learned from CPPM development were applied to reverse-engineer the first library of simple amphiphilic block copolypeptides for non-covalent protein delivery, namely, poly(alanine--arginine), poly(phenylalanine--arginine), and poly(tryptophan--arginine). This new CPP library was screened for enhanced green fluorescent protein and Cre recombinase delivery alongside a library of CPPMs featuring equivalent side-chain configurations.

Genome-wide association study of phenotypes measuring progression from first cocaine or opioid use to dependence reveals novel risk genes.

Aim: Substance use disorders (SUD) result in substantial morbidity and mortality worldwide. Opioids, and to a lesser extent cocaine, contribute to a large percentage of this health burden. Despite their high heritability, few genetic risk loci have been identified for either opioid or cocaine dependence (OD or CD, respectively).

Mechanically tightening, untying and retying a protein trefoil knot by single-molecule force spectroscopy.

Knotted conformation is one of the most surprising topological features found in proteins, and understanding the folding mechanism of such knotted proteins remains a challenge. Here, we used optical tweezers (OT) to investigate the mechanical unfolding and folding behavior of a knotted protein tRNA (guanosine-1) methyltransferase (TrmD). We found that when stretched from its N- and C-termini, TrmD can be mechanically unfolded and stretched into a tightened trefoil knot, which is composed of 17 residues.