Miracle-dz/UniFAR-FTUs huggingface dataset:
Unravelling the Impact of Corporate Social Responsibility (CSR) on Organizational Success and Employee Layoffs amidst the COVID-19 Pandemic: A Conceptual Framework

As an auspicious domain in CSR initiatives research, organizational success and employees’ layoffs has established tremendous research considerations in recent times. The rationale of this conceptual article is to advance and authenticate a proposed conceptual framework for CSR efforts, organizational success and employees’ layoffs. This conceptual framework is premeditated as a guide for upcoming studies to use and authenticate as a basis for quantitative studies to investigate the CSR efforts, organizatio nal success and employees’ layoffs amid the outbreak of the world’s high -risk pandemic crisis such as COVID-19. The stakeholder and management crisis theories, were employed in this conceptual article as they are essential sources of support at work, especially during challenging events. This conceptual analysis applied CSR efforts, organizational success and employees’ layoffs as a basis to develop the antecedents of retentive workforce and heighten organizational performance globally. This conceptual paper proposed that CSR efforts, organizational success and employees’ layoffs results in the disruption of CSR efforts as experienced during COVID -19 pandemic due to the inappropriate implementation of CSR initiatives. This conceptual article has submitted research hypotheses that would be a foundation for future studies and if the framework is authenticated, recommendations would be offered to various stakeholders on how to improve on CSR efforts, organizational success and employees’ layoffs during unexpected manifestations. Explicitly, the proposed conceptual framework if authenticated
A Practical and Provably Secure Authentication and Key Agreement Scheme for UAV-Assisted VANETs for Emergency Rescue

Recently, unmanned aerial vehicles (UAVs) configured to provide real-time data for emergency rescue have been integrated into vehicular ad hoc networks (VANETs) to establish UAV-assisted VANETs. Because the communication channels between vehicles and UAVs are open and insecure, an authentication and key agreement (AKA) scheme is needed to secure such channels. Furthermore, a two-factor authentication mechanism is essential. However, most existing two-factor AKA schemes cannot achieve truly two-factor security while resisting password guessing attacks effectively. To address this problem, we propose a lightweight, provably secure, and practical two-factor AKA scheme for UAV-assisted VANETs based on chaotic maps by adopting techniques including fuzzy verifiers and honeywords. In this study, considering the limited computational storage of vehicles and UAVs, a hybrid generation algorithm is proposed to optimize the storage of honeywords. Through rigorous security proofs and detailed security analyses, we demonstrate that the scheme meets the security requirements of VANETs and can resist more security attacks. By utilizing the JPBC library to performance evaluation, a comprehensive comparison with related schemes reveals that the proposed scheme achieves a better balance between communication and computational overhead.
Stability Modification of Dye-sensitized Solar Cells by Ruthenium Dyes Embedded on Eggshell Membranes

Dye-sensitized solar cells (DSSCs) have been one of the most promising technologies to convert sunlight into electricity repeatedly based on the mechanism that dyes inject/accept electron into the metal oxides/from redox mediator. Specifically, N719 ([RuL2(NCS)2], L: 4,4′-dicarboxy-2,2′-bipyridine), immobilized on TiO2 through the interaction between its ligands (-COO− and -NCS) and the oxygen on the TiO2 surface, has been used as a conventional DSSC dye with high voltage. Nevertheless, -NCS ligands have been removed from Ru2+ in N719 due to UV irradiation and exchanged with H2O or OH− in electrolyte, resulting in voltage drop. In this work, we developed the first DSSC using the N719-adsorbed Eggshell (ESM)-TiO2 composite to maintain the immobilization of N719 on TiO2 through electrostatic interaction between the protein of ESM and N719. The DSSC using the composite maintained the voltage even after 12 h light irradiation, although the voltage of DSSC without ESM dropped drastically. It means that the ESM contributed to stable photovoltaic performances of DSSCs through the protection of NCS ligands of N719.
The uncertainties involved in extracting amplitude and frequency of orbitally driven sea‐level fluctuations from shallow‐water carbonate cycles

In outcrops, shallow‐water carbonates often form thick, vertically stacked, metre‐scale, exposure‐bounded depositional packages, here called carbonate cycles. Because the facies within carbonate cycles can be tied precisely to water depths, they are considered ideal for reconstructing past sea‐level changes. There is, however, increasing evidence that these depositional cycles are unreliable recorders of both the frequency and the amplitude of orbitally driven sea‐level fluctuations. Carbonate cycles record only a fraction of the amplitude of a sea‐level cycle: a portion of the rise and nothing of the fall. Cores through the Pleistocene cycles on Great Bahama Bank illustrate this shortcoming. Although the amplitudes of the last nine sea‐level changes are each a hundred metres or more, the thickness of the cycles varies from a few metres to ca 15 m. The lack of correlation between sea‐level amplitude and cycle thickness is not eliminated for cycles deposited during times of lower sea‐level amplitudes, for example, the Cretaceous. Upper Cretaceous cycles on the Maiella platform margin document the irregularly filled accommodation space and the resultant variability in cycle thickness and frequency. Uncertainties in assessing the frequencies of sea‐level changes from shallow‐water carbonate cycles are caused by ‘missed beats’ and metre‐scale oscillations of sea‐level within highstands that potentially produce cycles of very short duration. The random amplitude variability during the last 57 glacio‐eustatic sea‐level changes illustrates the difficulty of assessing ‘missed beats’, where a sea‐level fluctuation is not recorded because the sea‐level rise does not reach the platform top. ‘Missed beats’ are also produced by the depositional topography that is created by irregularly filled accommodation space. As a result, variable numbers of cycles are deposited across the platform. Further complicating orbital frequency analyses are decametre‐scale oscillations of the sea‐level during highstands. The amplitude of these sub‐orbital sea‐level oscillations (up to 17 m within the last interglacial, Marine Isotope Stage 5e) are sufficient to expose shallow platforms like Great Bahama Bank and subsequently produce an additional depositional cycle with similar facies successions. The combined effects of missed beats and oscillations within highstands are likely to produce cycles and hiatuses of variable duration that are difficult to extract from the rock record. Consequently, estimates of the orbital forcing mechanisms and frequencies from ancient shallow‐water carbonate cycles carry large uncertainties.
Natural Killer Cell Count in Systemic Lupus Erythematosus Patients: A Flow Cytometry-Based Study

Background Natural killer cells (NK cells) are important mediators of innate immune regulation and literature has shown that they have a role in shaping the adaptive immune system. Objective The present study was undertaken to analyze the NK cell count in systemic lupus erythematosus (SLE) patients as compared to that of controls. Materials and methods Safety of Estrogens in Lupus Erythematosus National Assessment SLE Disease Activity Index (SELENA-SLEDAI) score was assessed in 32 SLE cases. CD3(-) cells were identified as NK cells on flow cytometry, and then their subsets CD56(+) and CD16(+) cells were identified compared to 30 healthy controls. Receiver Operating Characteristic (ROC) curve analysis was performed on NK cells to attempt to determine a cut-off point. Results The CD3(-) NK cells, including the percentages of CD56(+) and CD16(+), were significantly (p<0.001) reduced in SLE patients (12.35%, and 18.7%) as compared to controls (24.67%, and 46.6%). On ROC curve analysis, cut-off values <481/cumm with sensitivity of 86.7% and specificity of 84.4% for CD3(-) NK cells (p<0.001), <23% with 60% sensitivity and 75% specificity for CD56(+) NK cells (p<0.001), and <29% with sensitivity of 70% and specificity of 87.5% for CD16(+) NK cells (p<0.001) were noted. Subsets of NK cells showed no association with the clinicopathological parameters like age, sex, disease activity, anti-nuclear antibodies (ANA), dsDNA, absolute lymphocyte count, and renal involvement. Conclusion NK cells, and their subpopulations of CD56(+) and CD16(+) cells, are decreased in patients with SLE as compared to controls.
The annual and seasonal distribution of fronts over central-southern Europe and the Mediterranean

An analysis of the frequency of occurrence of fronts over central-southern Europe and the Mediterranean was carried out based on daily synoptic charts for the nine year period from 1971 to 1979. Tables and charts are presented showing the annual and seasonal frontal frequencies over the area, and the variation of average frequency of fronts with latitude and longitude is demonstrated. The distribution of the frequency of fronts fits in with generally accepted models of hemisphere circulation. An interesting feature is the relative importance of each type of front to the seasonal patterns which emerge. Cold fronts contribute strongly in all seasons with frequencies of approximately 1 in every 10 days in spring, summer and autumn and of 1 each week in winter.
A review of silicic pyroclastic rocks of the British Tertiary Volcanic Province

Summary Silicic airfall and ashflow tuffs constitute a significant component of the extrusive products of the British Tertiary Volcanic Province. These deposits typically formed early in the evolution of individual volcanic centres as proximal facies accumulations intercalated with polylithic pyroclastic breccias, and occur throughout the evolution of the Province. Rhyolites and, less commonly, trachytes occur as lavas in close spatial and temporal association and, together with the silicic pyroclastic rocks, are interpreted as the extrusive equivalents of the felsic and felsic-mafic (mixed-magma) subvolcanic intrusions which are important members of the central intrusive complexes of the Province. The field relations of the silicic tuffs suggest that the associated pyroclastic breccias are also often extrusive and together they form crater infills.
Type 1 diabetes, glycemic traits, and risk of dental caries: a Mendelian randomization study

Background: Regarding past epidemiological studies, there has been disagreement over whether type 1 diabetes (T1DM) is one of the risk factors for dental caries. The purpose of this study was to determine the causative links between genetic susceptibility to T1DM, glycemic traits, and the risk of dental caries using Mendelian randomization (MR) approaches. Methods: Summary-level data were collected on genome-wide association studies (GWAS) of T1DM, fasting glucose (FG), glycated hemoglobin (HbA1c), fasting insulin (FI), and dental caries. MR was performed using the inverse-variance weighting (IVW) method, and sensitivity analyses were conducted using the MR-Egger method, weighted median, weighted mode, replication cohort, and multivariable MR conditioning on potential mediators. Results: The risk of dental caries increased as a result of genetic susceptibility to T1DM [odds ratio (OR) = 1.044; 95% confidence interval (CI) = 1.015–1.074; p = 0.003], with consistent findings in the replication cohort. The relationship between T1DM and dental caries was stable when adjusted for BMI, smoking, alcohol intake, and type 2 diabetes (T2DM) in multivariable MR. However, no significant correlations between the risk of dental caries and FG, HbA1c, or FI were found. Conclusion: These results indicate that T1DM has causal involvement in the genesis of dental caries. Therefore, periodic reinforcement of oral hygiene instructions must be added to the management and early multidisciplinary intervention of T1DM patients, especially among adolescents and teenagers, who are more susceptible to T1DM.
Relationship between solar radiation and the development and morphology of small cirque glaciers (maladeta mountain massif, central pyrenees, spain)

Abstract Spatial and temporal variations in radiative fluxes influence glacier mass‐balance in mountain areas. The primary goal of this study was to assess differences in solar radiation on three glacial cirques located in the Maladeta Mountain massif (Central Spanish Pyrenees), and analyse their implications on glacier development and morphology. A quantitative approach is adopted to obtain the values of solar radiation (direct, diffuse and global radiation), combining several field data parameters (measured at 55 control‐points) with the solar radiation modelling package Ecosim. The data obtained confirm that the morphologies of the glacial bodies developed in the three cirques have a good correlation with the spatial variation on solar radiation inputs, favouring also the conservation (Aneto and Coronas cirques) or total vanishing (Llosás cirque) of the glacial remnants analysed here. The study shows how strongly in this Alpine‐Mediterranean context solar radiation — firstly as a function of latitude and time of year, and locally as a function of topographic slope, aspect and shadowing — controls the mass‐balance and the spatial distribution of melting in small glaciers, having an effect on the development of their morphologies.
The effect of water seepage forces on the face stability of an experimental microtunnel

The face heading stability of underground constructions remains quite difficult to assess, especially when groundwater is present. To investigate this, an experimental microtunnel was excavated at shallow depth in soft ground, below the water table. In agreement with field measurements of the piezometric level changes, a three-dimensional finite element analysis of groundwater flow shows that the head losses are concentrated in the close vicinity of the tunnel face. Both numerical equilibrium analysis and field measurements were used to show that the resulting seepage forces substantially increase the supporting pressure required to ensure face stability. Key words : microtunnel, shallow depth, soft ground, seepage forces, face stability, supporting pressure.
Study on the acid polysaccharide from the purslane plant Portulaca olerácea

Nowadays, searching for new raw materials and sources of biologically active substances of plant origin is very important. The wide distribution, relative ease of isolation, and high physiological activity have made the practical application of the acid polysaccharide attractive. An intensive study of the relationship between the structure and physicochemical properties of acidic polysaccharides is currently underway. The objective of the research is to isolate and study the physicochemical properties of the acidic polysaccharide (pectic substances) isolated from the medicinal plant Portulaca (lat. Portúlacaolerácea) growing on the lower part of the Amu Darya. The article presents the results of the isolation and chemical study of the acid polysaccharide by paper and gas-liquid chromatography. It has been established that this carbohydrate complex is represented by pectin substances. Their qualitative and quantitative monosaccharide composition has been established. The physicochemical parameters and monosaccharide composition of garden purslane have been studied. According to chromatography, the monosaccharide composition consists of uronic acid, galactose, glucose, arabinose, xylose, and minor rhamnose. The obtained pectin substances from the garden purslane plant belong to high molecular weight acidic polysaccharides, arabinoglucouranans.
Compaction of Igneous Cumulates Part I: Geochemical Consequences For Cumulates and Liquid Fractionation Trends

The importance of crystallization during compaction of an 800 m section of cumulates in Olivine‐bearing zones III and IV of the Stillwater complex is assessed using whole‐rock and mineral compositions. Two sets of calculations provide estimates for the liquid fraction that crystallized in each sample. The first relies upon the effect that crystallized liquid has on the whole‐rock Mg#, and the second is based on the proportion of compatible and incompatible trace elements contributed by the crystallized liquid. Estimates based on trace‐elements vary with their bulk distribution coefficients (D) such that elements with higher Ds yield higher estimates of crystallized liquid. Comparison of estimates based on Y (average 9%) with those based on V (average = 45%) and on the whole‐rock Mg# (average 15%) show all three to be substantially different. The disparity in these estimates is interpreted to be a consequence of crystallization during compaction enriching the interstitial liquid in incompatible elements that were then expelled from the crystal pile prior to incorporation into late crystallizing minerals. Knowledge of the fate of liquid included in a growing crystal pile is of fundamental importance not only to interpreting the composition of cumulates but also to understanding how liquid compositions evolve by fractional crystallization. The return of evolved liquids from the crystal pile can decouple fractionation trends of major and trace elements producing apparently anomalous enrichment in the more incompatible trace elements.
Southern Hemisphere poleward moving auroral forms

[1] This paper presents a statistical study of Southern Hemisphere poleward moving auroral forms (PMAFs) using optical data from the US Automatic Geophysical Observatory network in Antarctica. These Southern Hemisphere events are compared with Northern Hemisphere PMAFs, which have previously been observed during varied interplanetary magnetic field (IMF) configurations. The frequency of PMAF occurrence is studied as a function of IMF orientation and magnetic local time. Southern Hemisphere PMAFs are biased to Bz 0 constituting 38% of events. Southern Hemisphere PMAFs share a similar IMF Bz dependence with Northern Hemisphere events [e.g., Fasel, 1995]. The primary modulator of PMAFs was found to be IMF By, which was negative for 81% of events. Although the average background IMF was biased to By 0) enhances the observation of PMAFs in the prenoon (postnoon) region, consistent with the release of magnetic stress. A morning bias of Southern Hemisphere PMAFs is observed, consistent with Northern Hemisphere events.
The Minor Planet Observer

A two stage cascaded transistor amplifier in which the stages are transformer coupled utilizing a transformer having an impedance ratio of the order of magnitude of 1/20 characterized by the fact that the low impedance winding of the transformer is connected to the output of the first stage and the high impedance winding of the transformer is connected to the input of the second stage.
The Ivanhoe and Rob Roy Fields, Blocks 15/21a-b, UK North Sea

Abstract The Ivanhoe and Rob Roy Fields are located in the Outer Moray Firth Basin, seventy nautical miles off the northeast coast of Scotland. The Ivanhoe Field was discovered in 1975, and the Rob Roy Field in 1984. The reserves in both fields occur in tilted fault block traps of Upper Jurassic, Piper Sandstone Formation. Estimated total recoverable reserves amount to 100 MMBBL and 62 BCF. The fields are separated by a water corridor approximately 1 km wide. Both fields contain two reservoir sandstone units, an upper and lower, locally termed the Supra Piper Sandstone and Main Piper Sandstone respectively. The reservoirs in both fields exhibit excellent rock' properties with porosities up to 28% and permeabilities of several Darcies. Each field is developed via a subsea manifold surrounded by a cluster of production and injection wells, of which two were pre-drilled on Ivanhoe and six pre-drilled on Rob Roy. This allowed rapid achievement of the 60 000 BOPD plateau oil production rate soon after commissioning of facilities in July 1989. The two subsea manifolds are tied into a single subsea production manifold which connects with a Floating Production Facility. Crude oil is exported to the Claymore A Platform and gas to the Tartan A Platform.
Response of the Gulf of Alaska 3D winter circulation to oceanic climate shifts: Ecosystem implications

Recent measurements of zooplankton biomass and biological productivity in the Gulf of Alaska have raised a number of questions regarding possible linkages between climate and availability of renewable resources. In this article we compare 3 abrupt oceanic regime shifts in the Gulf of Alaska, the 1976–1977 warming shift, the 1998 cooling episode, and the 1998 to 1999 El Niño to La Niña transition, against concomitant changes in biological conditions reported in the literature. After the 1976–1977 warming shift, changes in the Gulf's 3D circulation, i.e., interior upwelling, onshore transport and coastal downwelling, had the same sign as their climatological means, thus providing a candidate explanation to the observed increased productivity of the upper ocean. Warming and cooling transitions have associated with them very different patterns of both horizontal and vertical circulation, where the latter is confirmed to be linked to the wind stress curl variability. Important shifts in the local biology have been reported in the literature (warming of 1976–1997 and El Niño to La Niña transition of 1998–1999) when climatological shifts in our simulated vertical velocities were large; in turn, when they were small, the ecosystem did not show significant changes and this was in part due to the resilience set by the 1976–1977 shift through the strengthening of the GOA's mean 3D circulation.
Evaluation and analysis of multidrug resistance- and hypervirulence-associated genes in carbapenem-resistant Pseudomonas aeruginosa strains among children in an area of China for five consecutive years

Introduction Carbapenem-resistant Pseudomonas aeruginosa (CRPA) is a growing threat. It is urgent to investigate the multidrug resistance and high virulence of CRPA to provide a basis for infection control and rational use of antibiotics. Methods A retrospective study of 56 nonduplicated CRPA isolates was conducted. Results CRPA mainly came from the intensive care unit (ICU) and was mostly isolated from sputum samples. The carbapenem resistance rates of P. aeruginosa were 21.37% (2016), 10.62, 5.88, 10 and 13.87% from 2016 to 2020, respectively. Carbapenem-resistant enzymes and aminoglycoside-modifying enzyme-encoding genes were detected in all isolates, and extended-spectrum β-lactamase and cephalosporin enzyme-encoding genes were present in 96.43 and 80.38% of isolates, respectively. The detection rate of OprM showed a statistically significant difference (p < 0.05) between the ICU and other wards. Genes related to biofilms, membrane channel proteins, I integrons and efflux systems were detected in all isolates, with detection rates greater than 90%. CRPA was strongly virulent, and over 80% of isolates carried hypervirulence-associated genes (exoU, exoS, exoT, and exoY). The drug resistance rates of cefepime and piperacillin/tazobactam showed a statistically significant difference (p < 0.05) between strains with exoU (+) and exoU (−) (p < 0.05). Notably, out of the 7 individuals who died, 4 had extensively drug-resistant P. aeruginosa (57.14%). Discussion The detection rates of various resistance and virulence genes were high, and the coexistence phenomenon was serious. In clinical practice, antibiotics should be used reasonably based on different drug resistance genes to ensure the rationality and safety of patient medication.