Direct Exchange Research Articles

Impact of Perceived Barriers of Electronic Health Information Exchange on Physician’s Use of EHR: A Normalisation Process Theory Approach

AbstractDigitizing healthcare is a major aim of healthcare policy, with efforts aimed at increasing adoption of electronic health records (EHRs). We study the capability use for EHRs through the lens of normalisation process theory to assess whether these barriers to adoption also remain barriers to sustained use. We focus on health information exchange (HIE), which is one of the most challenging capabilities identified in the literature. We analyse the National Electronic Health Records Survey data, in which physicians were asked whether known HIE adoption barriers remain in place, and how frequently they use HIE capabilities. Though we expect that adoption barriers reported to be less problematic will be associated with greater capability use, we found that adoption barriers perceived to be more (less) problematic were not necessarily those that predicted less (greater) capability use. This study contributes through a critical examination of the process of normalization of EHR capabilities.

Advances in Spin‐Modulated Electrocatalysis of Oxygen Evolution Reaction

AbstractElectrochemical splitting of water for hydrogen generation has emerged as a potential strategy for transitioning towards renewable energy sources and mitigating the environmental impact of fossil fuel dependence. However, the efficiency of water splitting is mainly hindered by oxygen evolution reaction (OER) at the anode side, which involves kinetically sluggish four proton‐coupled electron‐transfer steps. Recent studies on OER demonstrate that a spin‐dependent mechanism governs the reaction kinetics, wherein the electronic exchange interactions in the catalytic activity of transition metals can provide a spin‐selective channel to filter out electron spins with the right orientation during the formation of O2. Maximizing efficiency and stability of such catalysts require optimization the geometric and electrical structures of transition metal systems. In addition, it is vital to understand the OER mechanism with spin considerations to be familiar with the connection between spin, charge, orbital, and lattice characteristics. This review focuses on current developments in understanding and the use of the spin‐related effect in the OER mechanism.

Research on the Impact of Geopolitical Instability on Russian Trade

This study examines how global and country- specific geopolitical instability affects Russian trade using data from 1996 to 2021. A panel regression model analyzes trade between Russia and its 15 top trading partners, exploring both direct and indirect effects. The analysis focuses on how accumulated foreign direct investment (FDI) and exchange rate fluctuations mediate these relationships. The findings reveal that global geopolitical instability decrease Russian trade by 0.0558. Interestingly, this negative impact is partially mediated by a decrease in FDI (-0.0805). This aligns with the Structural Equation Modeling (SEM) results, which show a significant negative effect of global geopolitical instability on FDI (-1.209). This suggests that FDI acts as a key transmitter of the negative effects of global instability on Russian trade. The role of exchange rate fluctuations, however, is more complex. While the Sobel Test indicated a negative indirect effect, the SEM analysis shows a positive indirect effect through exchange rate fluctuations on trade. This suggests potentially countervailing effects of currency fluctuations, with depreciation potentially incentivizing exports while appreciation might make imports cheaper. The impact of country-specific geopolitical instability varies depending on the context. Industries like food products and textiles are significantly affected by geopolitical instability increase, while sectors such as fuels, metals and raw materials show resilience. Close trading partners are less affected by global instability but suffer from partner- specific instability. Geographically, Western Europe benefits from global instability but faces challenges from partner-specific instability, contrasting with Eastern Europe and Asia. Overall, this research contributes to the understanding of how geopolitical instability, mediated by FDI and exchange rates, shapes Russia's trade performance.

Made in Frankfurt? The Monetary Policy of the Swiss National Bank Since 1973

The paper investigates the monetary policy of the Swiss National Bank (SNB) in the post-Bretton Woods era, shedding light on the dynamics between the SNB and the Bundesbank and its successor, the European Central Bank, respectively. Our econometric analysis shows a high degree of synchronisation between the SNB’s interest rate changes and the decisions made in Frankfurt. The results also suggest a strong tendency toward direct exchange rate targeting before 1999, which coincides with a period of lower demand shock synchronization. This finding is supported by our analysis of the minutes of the Governing Board of the SNB for the period between 1982 and 1993. The discussions and decisions of the board show that Swiss monetary policy was largely guided by policy rate changes of the Bundesbank. The SNB routinely set the policy rate below the policy rate of the Bundesbank to enforce an implicit exchange rate target.

End the Delay in Adopting Electronic Record Exchange between EMS and EDs

End the Delay in Adopting Electronic Record Exchange between EMS and EDs

Building the Empirical Puzzle on Impact of Macroeconomic Determinants on GST Revenue: An Empirical Investigation via ARDL Bound Test Perspective

ABSTRACTThe revenue mobilization remains a challenge for many countries, especially developing countries such as India. Therefore, this study explores the macroeconomic determinants of Goods and Service Tax (GST) revenue of the government in India as GST constitutes a major share in the Own Tax Revenue (OTR) of the government in India. The current study has employed the Auto Regressive Distributed Lag (ARDL) model to examine the macroeconomic determinants of GST taxation revenue of the government in India. The results reveal that foreign direct investment, depreciation in the exchange rate and foreign exchange reserves have a favorable impact on the GST revenue of the government in India. Furthermore, the gross fiscal deficits of the government and inflation have a detrimental effect on the GST revenue collection of the government in India. The results of the study are supported by the Tanzi effect and the Tanzi–Olivera effect for the detrimental effect of inflation and gross fiscal deficit on the GST revenue of the government in India. The current study has major policy implications for the government, policymakers, and researchers. The empirical results illustrates that the government may put a stringent check on inflation and gross fiscal deficit of the country to improve their GST collections. Moreover, the government should try to focus on foreign direct investment, trade openness, and foreign exchange reserve in India to increase their GST revenue. Meanwhile, the current study can be used as a base for conducting future studies at national and international levels for examining the determinants of other taxation revenue of the government by incorporating other country specific variables. This study may act as a novel contribution to the available literature on the macroeconomic determinants of taxation revenue in India. To the knowledge, it will be the first study in India to especially explore the determinants of GST revenue of the government in India. However, the findings of the study need to be generalize in future by incorporating a larger sample size as GST is still in its introductory phase in India.

Orthogonal Determination of Competing Surfactant Adsorption onto Single-Wall Carbon Nanotubes During Aqueous Two-Polymer Phase Extraction via Fluorescence Spectroscopy and Analytical Ultracentrifugation.

A combination of analytical ultracentrifugation (AUC) and fluorescence spectroscopy are utilized to orthogonally probe compositions of adsorbed surfactant layers on the surface of (7,5) species single-wall carbon nanotubes (SWCNTs) under conditions known to achieve differential partitioning in aqueous two-phase extraction (ATPE) separations. Fluorescence emission intensity and AUC anhydrous particle density measurements independently probe and can discriminate between adsorbed surfactant layers on a (7,5) nanotube comprised of either of two common nanotube dispersants, the anionic surfactants sodium deoxycholate and sodium dodecyl sulfate. Measurements on dispersions containing mixtures of both surfactants indicate near total direct exchange of the dominant surfactant species adsorbed to the carbon nanotube at a critical concentration ratio consistent with the ratio leading to partitioning change in the ATPE separation. By conducting these orthogonal measurements in a complex environment reflective of an ATPE separation, including multiple surfactant and polymer solution components, the results provide direct evidence for the hypothesis that it is the nature of the adsorbed surfactant layer that primarily controls partitioning behavior in selective ATPE separations of SWCNTs.

Insights into Pathogenesis of Trachoma.

Trachoma is the most common infectious cause of blindness worldwide. This review investigates the pathogenesis of trachoma, focusing on its causative agent, transmission pathways, disease progression, and immune responses. Trachoma is caused by serovars A-C of the bacterium Chlamydia trachomatis (Ct). Transmission occurs through direct or indirect exchanges of ocular and nasal secretions, especially in regions with poor hygiene and overcrowded living conditions. The disease is initiated in early childhood by repeated infection of the ocular surface by Ct. This triggers recurrent chronic inflammatory episodes, leading to the development of conjunctival scarring and potentially to trichiasis, corneal opacity, and visual impairment. Exploring the pathogenesis of trachoma not only unveils the intricate pathways and mechanisms underlying this devastating eye disease but also underscores the multifaceted dimensions that must be considered in its management.

Encountering Octavius: Reading Minucius Felix within the Stage Model of Conversion

Minucius Felix’s Octavius (ca. 200 CE) is a remarkable document in the history of pagan-Christian interaction in Late Antiquity. The nature of the philosophical exchange between the principal interlocutors makes the Octavius ripe for analysis with tools from contemporary conversion studies. In particular, here I argue that the Octavius—especially in its depiction of the encounter between Octavius, advocate for Christianity, and Caecilius, Roman pagan, a candidate for conversion—aligns remarkably well with Lewis Rambo’s influential Stage Model for Conversion. The text and order of the Octavius will be interpreted according to Rambo’s model for encounter between advocate and prospective convert. The implication of this alignment will be evidence that the Octavius represents a good faith exchange between pagan and Christian in the third century CE. This essay will, further, serve librarians and information professionals in providing resources for patrons interested in Roman Christian-pagan interaction and Early Christianity. The Octavius is unique in offering one of the very few direct Christian-pagan exchanges in Latin. This essay also directs to further reading in Late Antiquity, Early Christianity, Ancient Philosophy, and Conversion Studies.

Synthesis, biological properties, drug-likeness, In silico ADME studies and theoretical studies on 1,3,2λ5-diazaphosphinane derivatives: A DFT investigation

Under various reaction conditions, Tetraphosphorus decasulphide P4S10 and Lawesson's reagent LR interacted with 2-cyano-N-[(2-hydroxyphenyl) methylidene] acetohydrazide (1) to synthesize a new 1,3,2λ5-diazaphosphinane derivatives 2–4. The three novel compounds 2−4 have been synthesized and characterized by elemental and spectral analyses (UV–Vis, FT-IR, MS, and 1H–NMR) throughout the current inquiry. The ground state energies, harmonic vibrational wavenumbers, and ground state geometries of the investigated compounds 2−4 were optimized by applying the density functional theory (DFT) at the B3LYP level, utilizing 6–311++G (d, p) basis sets. The first principal study has been investigated for the electronic properties, molecular electrostatic potentials, and quantum chemical identities. There was a noticeable shift in intramolecular charge from the occupied to the empty molecular orbitals. Time-dependent density functional theory (TD-DFT) and the CAM-B3LYP/6–311++G (d, p) function was used to conduct the UV–Vis analysis. A few bacterial and fungal strains were used to test the antimicrobial activities. The stability of the molecule resulting from hyper conjugative interactions that cause its nonlinear optical activity and charge delocalization was investigated using a natural bond orbital approach. The Mullikan atomic charge and molecular electrostatic potential are also anticipated. The value of the HOMO-LUMO energy gap indicates the possibility of charge transfer within the molecule. Compound 4 is the most reactive, with an energy difference between the border orbital of ΔEgap = 2.97 eV, according to analysis of the global descriptors. In addition, compared to the other 2 and 3 compounds under study, compound 4 is the softest, least stable, and has the largest electronic exchange capacity. Examined the structure-activity relationship using DFT calculations (SAR) and compared the findings with real-world antimicrobial outcomes for compounds 2–4. Also, Drug-likeness and In silico ADME studies were performed.

Ab initio density response and local field factor of warm dense hydrogen

We present quasi-exact ab initio path integral Monte Carlo (PIMC) results for the partial static density responses and local field factors of hydrogen in the warm dense matter regime, from solid density conditions to the strongly compressed case. The full dynamic treatment of electrons and protons on the same footing allows us to rigorously quantify both electronic and ionic exchange–correlation effects in the system, and to compare the results with those of earlier incomplete models such as the archetypal uniform electron gas or electrons in a fixed ion snapshot potential that do not take into account the interplay between the two constituents. The full electronic density response is highly sensitive to electronic localization around the ions, and our results constitute unambiguous predictions for upcoming X-ray Thomson scattering experiments with hydrogen jets and fusion plasmas. All PIMC results are made freely available and can be used directly for a gamut of applications, including inertial confinement fusion calculations and the modeling of dense astrophysical objects. Moreover, they constitute invaluable benchmark data for approximate but computationally less demanding approaches such as density functional theory or PIMC within the fixed-node approximation.

Genomic privacy preservation in genome-wide association studies: taxonomy, limitations, challenges, and vision.

Genome-wide association studies (GWAS) serve as a crucial tool for identifying genetic factors associated with specific traits. However, ethical constraints prevent the direct exchange of genetic information, prompting the need for privacy preservation solutions. To address these issues, earlier works are based on cryptographic mechanisms such as homomorphic encryption, secure multi-party computing, and differential privacy. Very recently, federated learning has emerged as a promising solution for enabling secure and collaborative GWAS computations. This work provides an extensive overview of existing methods for GWAS privacy preserving, with the main focus on collaborative and distributed approaches. This survey provides a comprehensive analysis of the challenges faced by existing methods, their limitations, and insights into designing efficient solutions.

MEDITERRANEAN IMPRINT ON CORAL DIVERSITY IN THE INCIPIENT RED SEA (BURDIGALIAN, SAUDI ARABIA)

Abstract Globally, scleractinian coral diversity peaked in the Early Miocene (Burdigalian) and declined afterwards. In contrast to this global trend, scleractinian coral diversity in the Lower to Middle Miocene was low in the Red Sea, which had begun to open in the Oligocene and experienced its first marine incursion in the Burdigalian. Here, we report on coral diversity of reefs assigned to the Burdigalian to Langhian Wadi Waqb Member (Jabal Kibrit Formation) from outcrops exposed in the foothills behind the Red Sea coastline near Umluj, Saudi Arabia. Compared to the global records from the Paleobiology Database and the literature, the fossil record from the Wadi Waqb member suggests a relation of the taxonomic spectrum to the Arabian Gulf and the Mediterranean. No clear relation to the taxonomic spectrum to the Indian Ocean is observed. These faunal differences are consistent with the hypothesis that the young Red Sea was connected to the Arabian Gulf via the Mediterranean through the Gulf of Suez, but there was no connection between the Red Sea and the Indian Ocean because of the Afar mantle plume that uplifted the southern area of the Red Sea rift and blocked direct exchange of marine biota.

Interference-aware scheme to improve distributed caching in cellular networks via D2D underlay communications

Underlay Device-to-Device (D2D) communications is a promising networking technology intended to boost thespectral efficiency of future cellular networks, including 5G and beyond. When used for distributed caching, where cellulardevices store popular files for direct exchange later with other devices away from the cellular infrastructure, the technologybears more fruits such as enhancing throughput, reducing latency and offloading the infrastructure. However, due to theirnon-orthogonality, underlay D2D communications can result in excessive interference to the cellular user. To avoid thisproblem, the present article proposes a scheme with two interference-reduction elements: a guard zone intended to allowD2D communications only for devices far enough from the base station (BS), and a pairing strategy intended to allow D2Dpairing for only devices that are close enough to each other. We assess the performance of the scheme using a stochasticgeometry (SG) model, through which we characterize the coverage probability of the cellular user. This probability is aprincipal indicator of maintaining the quality of service (QoS) of the cellular user and of enabling successful caching for theD2D user. We introduce in the process a novel empirical technique which, given a desired level of interference, identifiesan upper bound for the distance between two devices to be paired without exceeding that level. We finally validate theanalytical findings obtained from the model by intensive simulation to ensure the correctness of both the model and thescheme performance. A salient feature of the scheme is that it requires for its implementation no software or hardwaremodification in the device

A Simple Model for the Pauli Repulsion with Possible Utility in QM, MM and Chemical Education.

The Pauli repulsion is the intermolecular force responsible for the volume and low compressibility of condensed-phase matter at normal conditions. A simple model for this force is presented, wherein per-atom electron densities are represented as spherical charge distributions that are prevented from significantly overlapping. In the example of two noble gas atoms approaching one another beyond their van der Waals radii, the distance between the centers of the electronic charge distributions becomes larger than the distance between the nuclei, giving rise to an unfavorable electrostatic interaction. For the purpose of calculating this interaction, the model is further simplified by representing the per-atom electron density as a negative point charge, loosely inspired by the classical Drude oscillator. The dispersion interaction is simplified to an R-6 term, centered on the aforementioned point charges. Despite the gross simplicity of the resulting formalism, near-quantitative agreement with high-level QM interaction energies of noble gas dimers is achieved. Accordingly, the present model is thought to have utility in force fields, in post-HF and post-DFT dispersion corrections, and in chemical education.

Air-Stable Wafer-Scale Ferromagnetic Metallo-Carbon Nitride Monolayer.

The pursuit of robust, long-range magnetic ordering in two-dimensional (2D) materials holds immense promise for driving technological advances. However, achieving this goal remains a grand challenge due to enhanced quantum and thermal fluctuations as well as chemical instability in the 2D limit. While magnetic ordering has been realized in atomically thin flakes of transition metal chalcogenides and metal halides, these materials often suffer from air instability. In contrast, 2D carbon-based materials are stable enough, yet the challenge lies in creating a high density of local magnetic moments and controlling their long-range magnetic ordering. Here, we report a novel wafer-scale synthesis of an air-stable metallo-carbon nitride monolayer (MCN, denoted as MN4/CNx), featuring ultradense single magnetic atoms and exhibiting robust room-temperature ferromagnetism. Under low-pressure chemical vapor deposition conditions, thermal dehydrogenation and polymerization of metal phthalocyanine (MPc) on copper foil at elevated temperature generate a substantial number of nitrogen coordination sites for anchoring magnetic single atoms in monolayer MN4/CNx (where M = Fe, Co, and Ni). The incorporation of densely populating MN4 sites into monolayer MCN networks leads to robust ferromagnetism up to room temperature, enabling the observation of anomalous Hall effects with excellent chemical stability. Detailed electronic structure calculations indicate that the presence of high-density metal sites results in the emergence of spin-split d-bands near the Fermi level, causing a favorable long-range ferromagnetic exchange coupling through direct exchange interactions. Our work demonstrates a novel synthesis approach for wafer-scale MCN monolayers with robust room-temperature ferromagnetism and may shed light on practical electronic and spintronic applications.

Magnetic Hardening: Unveiling Magnetization Dynamics in Soft Magnetic Fe-Ni-B-Nb Thin Films at Cryogenic Temperatures.

Recent advancements in amorphous materials have opened new avenues for exploring unusual magnetic phenomena at the sub-nanometer scale. We investigate the phenomenon of low-temperature "magnetic hardening" in heterogeneous amorphous Fe-Ni-B-Nb thin films, revealing a complex interplay between microstructure and magnetism. Magnetization hysteresis measurements at cryogenic temperatures show a significant increase in coercivity (HC) below 25 K, challenging the conventional Random Anisotropy Model (RAM) in predicting magnetic responses at cryogenic temperatures. Heterogeneous films demonstrate a distinct behavior in field-cooled and zero-field-cooled temperature-dependent magnetizations at low temperatures, characterized by strong irreversibility. This suggests spin-glass-like features at low temperatures, which are attributed to exchange frustration in disordered interfacial regions. These regions hinder direct exchange coupling between magnetic entities, leading to magnetic hardening. This study enhances the understanding of how microstructural intricacies impact magnetic dynamics in heterogeneous amorphous thin films at cryogenic temperatures.

Dispersion-Driven Cooperativity in Alkyl Perylene Diimide Oligomers: Insights from Density Functional Theory.

The cooperative mechanism is of paramount importance in the synthesis of supramolecular polymers with desired characteristics, including molecular mass, polydispersity, and morphology. It is primarily driven by the presence of intermolecular interactions, which encompass strong hydrogen bonding, metal-ligand interactions, and dipole-dipole interactions. In this study, we utilize density functional theory and energy decomposition analysis to investigate the cooperative behavior of perylene diimide (PDI) oligomers with alkyl chains at their imide positions, which lack the previously mentioned interactions. Our systematic examination reveals that dispersion interactions originating from the alkyl side-chain substituents play an important role in promoting cooperativity within these PDIs. This influence becomes even more pronounced for alkyl chain lengths beyond hexyl groups. The energy decomposition analysis reveals that the delicate balance between dispersion energy and Pauli repulsion energy is the key driver of cooperative behavior in PDIs. Additionally, we have developed a mathematical model capable of predicting the saturated binding energies for PDI oligomers of varying sizes and alkyl chain lengths. Overall, our findings emphasize the previously undervalued significance of dispersion forces in cooperative supramolecular polymerization, enhancing our overall understanding of the cooperative mechanism.

Unveiling the Adoption and Barriers of Telemedicine in US Hospitals: A Comprehensive Analysis (2017-2022).

Telemedicine has emerged as a vital healthcare delivery model, especially pronounced during the COVID-19 pandemic. Our study uniquely focuses on an institutional lens, examining US hospitals to offer targeted policy implications. To investigate the trend in telemedicine adoption across US hospitals from 2017 to 2022 and analyze the institutional challenges they encounter, particularly in the realm of electronic health information exchange. Cross-sectional study leveraging data from the American Hospital Association's (AHA) annual surveys for the years 2017 to 2021 and the 2022 AHA IT Supplement Survey. The study includes a national sample of US hospitals, covering a diverse range of hospital types including large, nonprofit, teaching, and system-affiliated institutions. US hospitals form the study's participants, with a substantial response rate to the surveys. Key metrics include the number of telemedicine patient encounters, percentage of hospitals offering telemedicine services, and institutional challenges to electronic health information exchange. Telemedicine encounters saw a 75% increase, growing from approximately 111.4 million in 2020 to nearly 194.4 million in 2021. The percentage of hospitals offering at least one form of telemedicine service went from 46% in 2017 to 72% in 2021. Larger, nonprofit, and teaching hospitals were more prone to telehealth adoption, without notable urban-rural disparities. While over 90% of hospitals allow patients to view and download medical records, only 41% permit online data submission. Importantly, 25% of hospitals identified Certified Health IT Developers such as EHR vendor as frequent culprits in information blocking, with cost being the primary obstacle. The findings underscore the rapid yet uneven adoption of telemedicine services in U.S. hospitals. The results point to the need for comprehensive policy interventions to address the challenges identified and realize telemedicine's full potential in healthcare delivery and resilience.

Lewis Acid-Base Pairs: The Bonding Rule of Closed-Shell M···M' Interactions (M = HgII/PdII; M' = AgI/AuI).

Metallophilic interactions are the widespread interactions in multimetal clusters to orientate closed-shell metal self-assembly form linear, facet, or block clusters. The closed-shell metal cation does not have empty valence orbitals, but is able to attract each other. It is still a conundrum to understand the resource in balancing the strong Coulomb repulsion between two cations. Most traditional descriptions attribute the counterintuitive attractions to London dispersion, Pauli repulsions, and ambiguous orbital interactions. However, neither the dispersion nor the unsourced donor-acceptor interaction can be applied to explain the saturability and directionality in multimetal clusters, where the M···M' structure is the basic molecular unit. Here, we clarify the origination of the covalency in closed-shell metallophilic interactions based on the study of heterobimetallic compounds composed of d10-d8 species (AgI/AuI-PdII) and d10-d10 species (AgI/AuI-HgII) obtained from experiments. The inner d electrons not only participate in the metallophilic interactions but also show different Lewis acidity and basicity in the formation of M···M' structures. The present work not only provides us a novel covalent perspective to visualize the closed-shell M···M' interactions but also unveils the truth of metallophilic interactions.