bluuebunny/crossref_metadata_2025_split huggingface dataset:
Robust Ramsey interferometer based on a single Rydberg polariton
Authors: Fan Jiabei , Jiao Yuechun , Li Changcheng , Bai Jingxu , Zhao Jianming , Jia Suotang 
Published: August 2023

We demonstrate a robust single-photon Ramsey interferometer based on a single Rydberg excitation, where the photon is stored as a Rydberg polariton in an ensemble of atoms. This coherent conversion of the photon to Rydberg polariton enables to split an incoming photon into a superposition state of two Rydberg states by applying microwave fields, which constructs two paths of interferometer. Ramsey interference fringes are demonstrated when we scan either the detuning of the microwave or the free evolution time, from which we can obtain the resonant transition frequency of two Rydberg states. We use the Ramsey-like sequence to demonstrate coherent manipulation of the stored single-photon to construct different interference patterns. In addition, the robustness of the Ramsey interferometer to the fluctuation of incoming photon numbers and optical depth (OD) of the atomic ensemble is tested, showing that the coherent of Ramsey interferometer is preserved for input photon number in a range of R
in
< 15 and for OD varying from 1.0 to 4.0. The robust interferometer will find its applications in quantum precision measurement.
Prevalence and persistence of cost-related medication non-adherence before and during the COVID-19 pandemic among medicare patients at high risk of hospitalization
Authors: Zhang James X. , Meltzer David O. 
Published: August 2023

Objective
To study cost-related medication non-adherence (CRN) for a 30-month period before and during the COVID-19 pandemic using a sample of Medicare patients at high risk of hospitalization.

Design
A novel data set of quarterly surveys of CRN was used to evaluate CRN before and during the COVID-19 pandemic. Generalized Estimating Equation (GEE) analyses were conducted to evaluate the adjusted coefficients of change in CRN behaviors controlling for socio-demographic and health characteristics.

Participants
Six hundred seventy-seven Medicare beneficiaries at high risk of hospitalization who were alive on January 1, 2020 and followed up through quarterly surveys on CRN for 30 months before and during the COVID-19 pandemic.

Main outcomes and measures
Two metrics of prevalence and persistence of CRN and their adjusted coefficients in GEE with binomial family distribution and log link function controlling for socio-demographic and health characteristics.

Results
A total of 5,990 quarterly surveys were completed by the 677 patients during the 30-month study period. Among the 677 patients, 250 (37%) were men, 591 (87%) were African American, and 288 (42%) were Medicare-Medicaid dual eligible. The unadjusted prevalence of CRN before and during the COVID-19 pandemic was 31.1% and 25.7% respectively (p = 0.02 by Chi-squared test), and persistent CRN rates were 12.1% and 9.7% respectively (p = 0.17 by Chi-squared test). The adjusted odds ratio of CRN prevalence during the pandemic compared to the pre-pandemic level was 0.75 (p<0.01), and 0.74 (p = 0.03) for persistent CRN in GEE estimations.

Conclusion and relevance
There are coherent evidence of a reversal of CRN rates during the COVID-19 pandemic among this high-need, high-cost resource utilization Medicare population. Patients’ CRN behaviors may be responsive to exogenous impacts, and the behaviors changed in the same direction with similar magnitude in terms of prevalence (the extensive margin) and persistence (the intensive margin). More research is needed to advance the understanding of the driving forces behind patients’ behavioral changes and to identify factors that may be informative for reducing CRN in the long run.
Litter stock, litterfall and nutrients in the Amazonia: defining patterns from last 40 years of scientific research
Authors: De Matos Rodrigues Julia Isabella , Martins Walmer Bruno Rocha , Oliveira Victor Pereira de , Wanzerley Myriam Suelen da Silva , Pacheco Hiago Felipe Cardoso , Menezes Felipe Cardoso de , Oliveira Francisco de Assis 
Published: August 2023

Nutrient cycling, guaranteed by the decomposition of litter, stands out as an essential process for maintaining Amazonian ecosystems. Studies on the litter layer on the soil surface are indispensable, primarily because they help provide information about functional and structural aspects of the ecosystem. Therefore, to define parameters related to the storage and production of litter and nutrients in Amazonia, we conducted a qualitative and quantitative analysis of articles in academic publications developed in Amazonia in the last 40 years (1980- 2019). We identified 83 articles, with the majority (85.39%) developed in Brazil. We found that 67% of these studies were related to the litterfall method and only 11.24% were related to both collection methods (litter stock and litterfall). The litter stock ranged from 4.94 ± 2.07 Mg ha-1 to 11.05 ± 4.67 Mg ha-1 for Agroforestry Systems (AFS) and Mixed Plantation (MIP), respectively. While litterfall ranged from 2.09 ± 1.14 Mg ha-1 year-1 to 9.01 ± 6.09 Mg ha-1 year-1 for pasture ecosystems (PAS) and AFS. The litter nutrients in Amazonia follow the following decreasing order: N>Ca>K>Mg>P. Our results indicate the need for more attention and investment in Amazonian forest research, so that more studies on the subject may be developed, especially those focusing on ecological restoration.
Niobium Silicide Diffusion Coatings: The Impact of Cu and of Ti on the Microstructure and High-Temperature Behavior
Authors: Pinto Beatriz Aparecida , D’Oliveira Ana Sofia C. M. 
Published: August 2023

Abstract
Silicide diffusion coatings on niobium offer attractive properties for applications at temperatures above 1,000°C because of the ability to form a protective oxide, silicon dioxide. The combination of a double layer of silicides, NbSi2 and Nb5Si3, provides a gradient of properties to the coating, mitigating the formation and propagation of cracks that otherwise allow oxygen to interact with the substrate. However, a temperature above 1,200°C is required to process double-layer silicide coatings, increasing the challenge of controlling the process and incrementing the cost of the process. The need to enhance silicide coatings without compromising their competitiveness motivates the study of the individual effects of copper and of titanium. This study processed silicide coatings by double pack cementation adding copper or titanium, respectively, to the pack mixture. Three pack mixture compositions were used: with 15 % wt. silicon, with 15 % wt. silicon + 7 % wt. copper, and 15 % wt. silicon + 7 % wt. titanium. Processing was carried out at 1,000°C for 6 hours. The coatings processed with silicon resulted on a single NbSi2 layer, but the pack mixture containing silicon and copper led to thick double-layer coatings of NbSi2 and a continuous layer of Nb5Si3, in spite of the low processing temperature. In contrast, the pack mixture containing silicon and titanium led to thinner coatings composed of a layer of NbSi2 and the discontinuous presence of Nb5Si3. Results suggest that copper and titanium impact the gaseous diffusion during processing and also the vacancy concentration in the ordered structure of NbSi2. Exposure to temperature reveals a change on the oxidation mechanisms after processing with titanium and a more significant mass gain of coatings processed with copper.
A Simple, Lightweight, and Low-Cost Customizable Multielectrode Array for Local Field Potential Recordings
Authors: Quansah Amissah Richard , Albeely Abdalla M. , Bragg Elise M. , Perreault Melissa L. , Doucette Wilder T. , Khokhar Jibran Y. 
Published: August 2023

AbstractLocal field potential (LFP) recording is a valuable method for assessing brain systems communication. Multiple methods have been developed to collect LFP data to study the rhythmic activity of the brain. These methods range from the use of single or bundled metal electrodes to electrode arrays that can target multiple brain regions. Although these electrodes are efficient in collecting LFP activity, they can be expensive, difficult to build, and less adaptable to different applications, which may include targeting multiple brain regions simultaneously. Here, the building process for a 16-channel customizable multielectrode array (CMEA) that can be used to collect LFP data from different brain regions simultaneously in rats is described. These CMEA electrode arrays are lightweight (<1 g), take little time to build (<1 h), and are affordable ($15 Canadian). The CMEA can also be modified to record single-unit and multiunit activity in addition to LFP activity using both wired and wireless neural data acquisition systems. Moreover, these CMEAs can be used to explore neural activity (LFP and single-unit/multiunit activity) in preliminary studies, before purchasing more expensive electrodes for targeted studies. Together, these characteristics make the described CMEA a competitive alternative to the commercially available multielectrode arrays for its simplicity, low cost, and efficiency in collecting LFP data in freely behaving animals.
Comprehensive quantitative modeling of translation efficiency in a genome‐reduced bacterium
Authors: Weber Marc , Sogues Adrià , Yus Eva , Burgos Raul , Gallo Carolina , Martínez Sira , Lluch‐Senar Maria , Serrano Luis 
Published: August 2023

AbstractTranslation efficiency has been mainly studied by ribosome profiling, which only provides an incomplete picture of translation kinetics. Here, we integrated the absolute quantifications of tRNAs, mRNAs, RNA half‐lives, proteins, and protein half‐lives with ribosome densities and derived the initiation and elongation rates for 475 genes (67% of all genes), 73 with high precision, in the bacterium Mycoplasma pneumoniae (Mpn). We found that, although the initiation rate varied over 160‐fold among genes, most of the known factors had little impact on translation efficiency. Local codon elongation rates could not be fully explained by the adaptation to tRNA abundances, which varied over 100‐fold among tRNA isoacceptors. We provide a comprehensive quantitative view of translation efficiency, which suggests the existence of unidentified mechanisms of translational regulation in Mpn.
A review of materials used in tomographic volumetric additive manufacturing
Authors: Madrid-Wolff Jorge , Toombs Joseph , Rizzo Riccardo , Bernal Paulina Nuñez , Porcincula Dominique , Walton Rebecca , Wang Bin , Kotz-Helmer Frederik , Yang Yi , Kaplan David , Zhang Yu Shrike , Zenobi-Wong Marcy , McLeod Robert R. , Rapp Bastian , Schwartz Johanna , Shusteff Maxim , Talyor Hayden , Levato Riccardo , Moser Christophe 
Published: August 2023

AbstractVolumetric additive manufacturing is a novel fabrication method allowing rapid, freeform, layer-less 3D printing. Analogous to computer tomography (CT), the method projects dynamic light patterns into a rotating vat of photosensitive resin. These light patterns build up a three-dimensional energy dose within the photosensitive resin, solidifying the volume of the desired object within seconds. Departing from established sequential fabrication methods like stereolithography or digital light printing, volumetric additive manufacturing offers new opportunities for the materials that can be used for printing. These include viscous acrylates and elastomers, epoxies (and orthogonal epoxy-acrylate formulations with spatially controlled stiffness) formulations, tunable stiffness thiol-enes and shape memory foams, polymer derived ceramics, silica-nanocomposite based glass, and gelatin-based hydrogels for cell-laden biofabrication. Here we review these materials, highlight the challenges to adapt them to volumetric additive manufacturing, and discuss the perspectives they present.
Graphical abstract
Left heart remodeling as a risk factor for atrial fibrillation in patients after surgery of acquired heart defects
Authors: Averina I. I. , Mironenko M. Yu. , Glushko L. A. , Donakanyan S. A. , Bokeria L. A. 
Published: August 2023

Aim. To identify risk factors for atrial fibrillation (AF) in patients with aortic and mitral defects after surgical treatment.Material and methods. A total of 112 patients with aortic and mitral defects (excluding patients with mitral stenosis) were examined: 90 men and 22 women aged 18 to 72 years (median age, 51(35;57) years). Patients were examined initially before and after surgery (in terms of 8-14 days and after 12-36 months). The peak left atrial (LA) longitudinal strain (PALS) was determined at LA reservoir phase. The following endpoints were chosen: the presence of AF and atrial flutter (AFL) in the shortand long-term period after surgery, repeated hospitalization for arrhythmias. Patients were divided into 2 groups: group 1 — patients with a favorable prognosis, group 2 — patients with AF and AFL after surgery. The mean values were compared by the independent Student’s t test, while the rank sum — by the Mann-Whitney test. ROC analysis was used.Results. Baseline LA volume index (LAVI) >44,4 ml/m2 increased the risk of AF after surgery (AUC=0,6±0,07, p<0,05, relative risk (RR) — 2,34 (confidence interval (CI), 0,8-6,88). LA volumes were within the normal range in the group without arrhythmias. A decrease in the initial threshold level of LA PALS <27,5% increased the risk of AF as in the shortand long-term postoperative period (AUC=0,659±0,08, p<0,01, RR — 1,19 (CI, 3,38-31,4). In the AF group, PALS decreased after surgery and did not increase in the long-term period (28±7,5% at baseline, 19±6,2% after surgery, 21±8,3% in the long-term period, (p=0,04 and p=0, 23, respectively). Left ventricular ejection fraction affected the AF development only in the early period after surgery (AUC=0,71±0,049, p<0,008, RR — 2,21 (CI, 1,27-3,87).Conclusion. The development of AF was influenced by LAVI, LA PALS, while in the early postoperative surgery period — ejection fraction.
Ischemic stroke in a patient with floating thrombosis of the left ventricular aneurysm and complete atrioventricular block infected with a COVID-19: a case report
Authors: Pavlenko T. A. , Pavlov A. V. , Lebedeva A. Yu. 
Published: August 2023

Left ventricular (LV) thrombosis is a common complication of heart failure with reduced LV ejection fraction and can be a source of systemic embolism. The material presents the case of a 76-year-old woman with a history of myocardial infarction, LV aneurysm, coronary bypass surgery, who was admitted to the hospital with ischemic vertebrobasilar stroke. One month prior to present hospitalization, the patient was admitted to the hospital with transient complete atrioventricular block, underwent coronary artery stenting for stable angina pectoris with a drug-eluting stent, and was subsequently diagnosed with coronavirus disease 2019 (COVID-19), which required further inpatient treatment. Despite dual antithrombotic therapy (antiplatelet+anticoagulant) taken after discharge from the hospital, the patient was diagnosed with a floating thrombus in the apical LV aneurysm. Recurrent conduction disorders (transient atrioventricular block) required temporary pacing until the thrombus elements floated, after which a dual-chamber pacemaker was implanted. The main feature of this case is the formation of a floating thrombus in the LV aneurysm 11 years after myocardial infarction against the background of COVID-19 and anticoagulant therapy with direct oral anticoagulants. At the moment, there is still no unique opinion on the choice of anticoagulant therapy in patients with COVID-19 and a complicated cardiovascular history. In such cases, the anticoagulant regimen should be determined by a multidisciplinary team, taking into account the risks of thrombosis and bleeding.
Evaluation of left atrial strain using speckle-tracking echocardiography to predict postoperative atrial fibrillation after coronary artery bypass grafting: a systematic review and meta-analysis
Authors: Golukhova E. Z. , Bulaeva N. I. , Mrikaev D. V. , Aleksandrova S. A. , Kudryashova E. N. , Dzhidzalova D. Kh. , Mollaeva D. D. , Berdibekov B. Sh. 
Published: August 2023

Aim.To conduct a systematic review and meta-analysis to investigate the prognostic role of left atrial (LA) strain assessment using speckle-tracking echocardiography to predict postoperative atrial fibrillation (POAF) in patients undergoing coronary bypass grafting (CABG).Material and methods.We searched the PubMed (Medline) and Google Scholar databases for studies investigating LA strain measures obtained by speckle tracking echocardiography as predictors of POAF in patients after CABG. To determine the difference in the weighted average LA strain parameters, an analysis was made of the global LA strain, peak atrial longitudinal strain (PALS), left atrial conduit strain (LACS) and left atrial contractile strain (LACtS). Odds ratio (OR) values were received from multivariate models reporting association between PALS and POAF and described as pooled estimates with 95% confidence intervals (CI).Results.Twelve studies from 404 publications were selected for this systematic review and meta-analysis. A total of 1093 patients were included in the analysis, with a mean age of 60,5 years. A meta-analysis showed that patients with POAF had lower global LA strain than patients without POAF (difference in weighted values, 5,03%; 95% CI: -6,89 to -3,16; p<0,001). In addition, patients with POAF had lower PALS, LACS and LACtS; the difference in weighted values was 9,90% (95% CI: -12,95 to -6,85; p<0,001), 4,17% (95% CI: -6,05 to -2,29; p<0,001) and 6,1 7% (95% CI: -12,01 to -0,33; p=0,04), respectively. Moreover, in a pooled odds ratio (OR) analysis, PALS was found to be an independent predictor of POAF (OR: 0,88 for every 1% increase in PALS; 95% CI: 0,82–0,94; p<0,0001).Conclusion.Assessment of LA strain using speckle-tracking echocardiography provides important additional information for predicting POAF in patients undergoing isolated CABG.
Outcome of Chivates trans anal suture mucoanopexy procedure for haemorrhoids: primary findings in South Indian population
Authors: M. Scott Arokia Singh 
Published: August 2023

Background: This procedure is used by surgeons all across India and we offer our preliminary findings from Southern India. To the best of our knowledge, this is the first publication from the rural part of Tamil Nadu to be disclosed.
Methods: One of the novel methods for treating grade III and IV haemorrhoids is the Chivate's procedure (CP). Restoring lowered anal cushions to their original positions and ligation of blood flow to the anal canal are the two main components of the Chivates surgery. Hemorrhoids' engorgement, prolapse, recurrence, and discomfort are the main factors influencing how haemorrhoids are treated.
Results: This procedure is the effective method with successful outcome in grade III and grade IV haemorrhoids. No complications like pain, soiling and leakage were noted.
Conclusions: CP of trans anal suture rectopexy for haemorrhoid is a very promising procedure with a short learning curve. In our experience with 58 patients, we conclude that the procedure successfully controlled mass, prolapse and recurrence of haemorrhoids.
A rare case of acute osteomyelitis in a 13-year-old with physeal involvement
Authors: Kumar Jayant , Kaushal Ravi , Sahoo Shekhar Chandra , Rajak Manoj K. , Laik Jayanta Kumar 
Published: August 2023

Osteomyelitis of epiphyses in adolescents is a rare finding. We evaluate one such case in which high degree of clinical suspicion and prompt surgical intervention yielded good functional results. This is a case report of 13-year-old girl diagnosed with osteomyelitis of right knee. MRI is suggestive of physeal involvement. Physeal involvement makes the management very challenging. Surgical intervention was planned to reduce bacterial load and minimize possibility of damage to knee joint (articular cartilage and joint capsule). Lateral and posterior compartment of leg was decompressed, fibular osteotomy done, drilling in tibial epiphyseal and metaphyseal region of tibia done avoiding any injury to growth plate. Pus for culture and sensitivity and specific antibiotics started with monitoring of blood parameters for infection like ESR, CRP, TLC. Patient taken up for second debridement after one week of index surgery. After 6 weeks of intravenous antibiotic patient discharged in afebrile state with reduced values of blood parameters and acceptable range of knee movement. Lower extremity functional scoring (LEFS) of 45/80 i. e., 56.83 % at the end of 4 months. Good functional outcome at the end of 1 year. Early clinical suspicion with prompt investigation, surgical and medical management gives promising result.
„Nieopisane ministerstwo Bożego miłosierdzia”
Authors: Gadamska-Serafin Renata 
Published: August 2023

Wśród rozmaitych wątków refleksji religijnej Norwida zwraca uwagę, niemal niedostrzegany w dotychczasowych badaniach, temat Bożego miłosierdzia i miłosierdzia świadczonego bliźnim. Pisma poety (listy, proza i poezja) zdradzają wysiłek autora (wyrażony np. w tworzeniu ciekawych neologizmów) zmierzający do przeniknięcia i doprecyzowania tej teologicznej prawdy, do jej pełniejszego zrozumienia i nowej, głębszej interpretacji.
„Miłosierdzie” jest przede wszystkim ważnym narzędziem Norwidowego „mówienia o Bogu”, jest dlań także streszczeniem istoty nauczania ewangelicznego (Nowy Testament nazywa poeta „Testamentem-miłosierdzia”). Prawda o miłosierdziu sytuuje się w centrum personalistycznej antropologii Norwida („Osobistość jest rzeczą miłosierdzia”) i tworzy osnowę jego myśli społecznej („społeczne miłowanie”, „jedenaste przykazanie”). Z pism poety wyłaniają się tropy wskazujące na jego inspiracje w tym zakresie m.in. teologią miłosierdzia św. Pawła oraz nauczaniem kaznodziei XIX-wiecznych (jak ks. Piotr Semenenko).
Można zatem postrzegać Norwida jako tego myśliciela chrześcijańskiego, który antycypując rewelacje teologiczne wieku XX, wychylił się samodzielnie już w XIX stuleciu ku temu ważnemu zagadnieniu wiary.
Description of the implementation of complementary therapy in midwifery services in Surabaya, Indonesia
Authors: Rozifa Annisa' Wigati , Mardliyana Nova Elok , Puspita Irma Maya 
Published: August 2023

HIGHLIGHTS

Midwifery services are carried out by combining conventional and complementary midwifery services
Types of complementary therapies applied by 52% of independent midwifery services in Surabaya consisted of aromatherapy, hypnotherapy, herbal medicine, baby massage and spa, maternity massage, oxytocin massage, and yoga.

ABSTRACT
Objectives: This study aimed to describe the implementation of complementary therapy among the independent midwifery practices in Surabaya, Indonesia.
Materials and Methods: Employing a quantitative approach with a survey methodology, this study involved data collection through surveys administered to independent midwives practicing in Surabaya and midwives affiliated with independent midwifery practices. The questionnaires were containing the characteristics of the participants, the implementation of complementary therapies, and the complementary therapies integrated into the practice settings.
Results: The findings revealed that 25 midwives (comprising 52%) provided complementary midwifery services, whereas 23 midwives (comprising 48%) abstained from incorporating complementary midwifery services into their independent midwifery practices. The types of complementary therapies implemented consisted of aromatherapy, hypnotherapy, herbal medicine, baby massage and spa, maternity massage, oxytocin massage, and yoga.
Conclusion: This study concluded that 52% of independent midwives in Surabaya applied complementary therapy into their practices.