Sigling

Cu3 BiS3 thin films are fabricated via spin coating of precursor solutions containing copper and bismuth xanthates onto planar glass substrates or mesoporous metal oxide scaffolds followed by annealing at 300 °C to convert the metal xanthates into copper bismuth sulfide. Detailed insights into the film formation are gained from time-resolved simultaneous small and wide angle X-ray scattering measurements. The Cu3 BiS3 films show a high absorption coefficient and a band gap of 1.55 eV, which makes them attractive for application in photovoltaic devices...

No abstract text is available yet for this article.

PURPOSE: To compare early versus delayed use of aqueous suppressants on Ahmed glaucoma valve (AGV) outcomes. DESIGN: Sigle-center retrospective comparative case series. PARTICIPANTS: Patients underwent AGV surgery at Wills Eye Hospital in the period between 2016 and 2021. METHODS: Retrospective review of AGV surgery at Wills Eye Hospital 2016-2021 for refractory glaucoma. Two groups were created: group 1 or those who received early aqueous suppressant therapy in the first 2 weeks postoperatively whenever the IOP is > 10 mmHg, and group 2 or those who received delayed treatment after two weeks whenever the IOP exceeded the target pressure...

We report on the spatial coherence of interlayer exciton ensembles as formed in MoSe_{2}/WSe_{2} heterostructures and characterized by point-inversion Michelson-Morley interferometry. Below 10 K, the measured spatial coherence length of the interlayer excitons reaches values equivalent to the lateral expansion of the exciton ensembles. In this regime, the light emission of the excitons turns out to be homogeneously broadened in energy with a high temporal coherence. At higher temperatures, both the spatial coherence length and the temporal coherence time decrease, most likely because of thermal processes...

This systematic review and meta-analysis aimed to summarize the effectiveness of bonded and removable retainers (the Hawley and Essix retainers) in terms of improving occlusal settling (occlusal contact points/areas) after orthodontic treatment. We searched the Cochrane Library, PubMed, CINAHL Plus, and Dental & Oral Sciences Source (DOSS), as well as SIGLE, Google Scholar and ClinicalTrials.gov for eligible studies. We included randomized and non-randomized controlled trials along with cohort studies. Studies that reported occlusal contacts/areas during retention with fixed bonded and removable retainers were included...

Soil microbial ecology is a relatively young research field that became established around the middle of the 20th century and has grown considerably since then. We analyze two epistemic re-orientations in the field, asking how possibilities for creating do-able problems within current conditions of research governance and researchers' collective sense-making about new, more desirable modes of research were intertwined in these developments. We show that a first re-orientation towards molecular omics studies was comparably straightforward to bring about, because it allowed researchers to gain resources for their work and to build careers-in other words, to create do-able problems...

A hydrogeochemical and isotopic study has been carried out to understand the hydrogeological functioning of a small alluvial aquifer in central Chile in a context of mega-drought and intensive exploitation of its waters. Additionally, two mine tailings dams from porphyry copper mining are situated in the area. The prolonged mega-drought, which has lasted for over thirteen years, has resulted in a significant decrease in rainfall recharge and a drop of up to 50 m in piezometric levels, although no serious groundwater contamination problems have yet been detected, except for a rise in nitrate contents (ranging between 23 and 45 mg/L NO3 ) attributed to return irrigation...

The Gram-positive model bacterium Bacillus subtilis can utilize several proteinogenic and non-proteinogenic amino acids as sources of carbon, nitrogen, and energy. The utilization of the amino acids arginine, citrulline and ornithine is catalyzed by enzymes encoded in the rocABC and rocDEF operons and by the rocG gene. Expression of these genes is controlled by the alternative sigma factor SigL. The RNA polymerase associated with this sigma factor depends on ATP-hydrolyzing transcription activators to initiate transcription...

BACKGROUND: In cases of terrorism, disasters, or mass casualty incidents, far-reaching life-and-death decisions about prioritizing patients are currently made using triage algorithms that focus solely on the patient's current health status rather than their prognosis, thus leaving a fatal gap of patients who are under- or overtriaged. OBJECTIVE: The aim of this proof-of-concept study is to demonstrate a novel approach for triage that no longer classifies patients into triage categories but ranks their urgency according to the anticipated survival time without intervention...

Mycobacterium tuberculosis is exposed to a variety of stresses during a chronic infection, as the immune system simultaneously produces bactericidal compounds and starves the pathogen of essential nutrients. The intramembrane protease, Rip1, plays an important role in the adaptation to these stresses, at least partially by the cleavage of membrane-bound transcriptional regulators. Although Rip1 is known to be critical for surviving copper intoxication and nitric oxide exposure, these stresses do not fully account for the regulatory protein's essentiality during infection...

PURPOSE: Facial trauma is a frequent presentation to the emergency department following alcohol-related injuries. Brief alcohol intervention (BAI) is a form of a motivational interview which is implemented in the postinjury phase to educate patients on the detrimental effects of their alcohol drinking behavior and reduce their future consumption. This systematic review and meta-analysis aims to assess the impact of BAI on alcohol drinking behavior in the emergency department setting. METHODS: An extensive systematic literature review was implemented from 21 October 2020 to 23 November 2020...

Glycopeptide antibiotics (GPA) consist of a glycosylated heptapeptide backbone enriched in aromatic residues originating from the shikimate pathway. Since the enzymatic reactions within the shikimate pathway are highly feedback-regulated, this raises the question as to how GPA producers control the delivery of precursors for GPA assembly. We chose Amycolatopsis balhimycina, the producer of balhimycin, as a model strain for analyzing the key enzymes of the shikimate pathway. A. balhimycina contains two copies each of the key enzymes of the shikimate pathway, deoxy-d-arabino-heptulosonate-7-phosphate synthase (Dahp) and prephenate dehydrogenase (Pdh), with one pair (Dahpsec and Pdhsec ) encoded within the balhimycin biosynthetic gene cluster and one pair (Dahpprim and Pdhprim ) in the core genome...

The electrical transport in bismuth nanowires is strongly influenced by both sample geometry and crystallinity. Compared to bulk bismuth, the electrical transport in nanowires is dominated by size effects and influenced by surface states, which gain increasing relevance with increasing surface-to-volume ratios, i.e. with decreasing wire diameter. Bismuth nanowires with tailored diameter and crystallinity constitute, therefore, excellent model systems, allowing to study the interplay of the different transport phenomena...

Quality of life (QoL) is affected by environmental influences and varies between patients. A combined measurement through Patient Reported Outcomes (PROs) and Patient Generated Data (PGD) may enhance the detection of QoL impairments by a longitudinal survey. Leveraging different approaches of QoL measurement techniques, the challenge is to combine data in a standardized, interoperable way. We developed an app (Lion-App) to semantically annotate data from sensor systems as well as PROs to be merged in an overall analysis of QoL...

TYPE OF STUDY DESIGN: Systematic review and meta-analysis. DATA SOURCES: MEDLINE, Embase, and Web of Science for English studies published until December 2017 using a controlled vocabulary (MeSH, Emtree) with no time restrictions were searched. The system for information on Grey literature in Europe (SIGLE), a manual search of all issues since 2000 of several implant-related journals, and reference list of all included studies were additionally surveyed by two reviewers in duplicate...

The systemic treatment of advanced prostate cancer (PCa) has undergone an absolute revolution in the past decade. Numerous new substances have been approved for all stages of advanced disease and treatment has been increasingly intensified. The focus continues to be on substances with an effect on the androgen receptor axis. In this review, approved treatment options for metastatic hormone-sensitive PCa (mHSPC), non-metastatic castration-refractory PCa (nmCRPC) and metastatic castration-refractory PCa (mCRPC) are summarized...

No abstract text is available yet for this article.

Aedes aegypti is the primary vector of the arboviruses dengue (DENV) and chikungunya (CHIKV). These viruses exhibit key differences in their vector interactions, the latter moving more quicky through the mosquito and triggering fewer standard antiviral pathways. As the global footprint of CHIKV continues to expand, we seek to better understand the mosquito's natural response to CHIKV-both to compare it to DENV:vector coevolutionary history and to identify potential targets in the mosquito for genetic modification...

INTRODUCTION:  Hemolysis results in release of free hemoglobin and hemin liberation from erythrocytes. Hemin has been described to induce platelet activation and to trigger thrombosis. METHODS:  We evaluated the effect of hemin on platelet function and surface expression of the platelet collagen receptor glycoprotein VI (GPVI). Isolated platelets were stimulated with increasing concentrations of hemin. RESULTS:  We found that hemin strongly enhanced platelet activation, aggregation, and aggregate formation on immobilized collagen under flow...

The interface polarity plays a vital role in the physical properties of oxide heterointerfaces because it can cause specific modifications of the electronic and atomic structure. Reconstruction due to the strong polarity of the NdNiO2 /SrTiO3 interface in recently discovered superconducting nickelate films may play an important role, as no superconductivity has been observed in the bulk. By employing four-dimensional scanning transmission electron microscopy and electron energy-loss spectroscopy, we studied effects of oxygen distribution, polyhedral distortion, elemental intermixing, and dimensionality in NdNiO2 /SrTiO3 superlattices grown on SrTiO3 (001) substrates...