Miracle-dz/UniFAR-FTUs huggingface dataset:
Kocuria Species: Important Emerging Pathogens in Pediatric Patients

Kocuria spp. , are frequently documented members of the human microbiota and were formerly thought to be opportunistic bacteria, initiating infection only in immunocompromised patients. This study aimed to determine the prevalence of Kocuria species in samples from Iraqi pediatric patients, in addition to their sensitivity pattern. Bacterial identification was performed using a VITEK 2 device, and the Kirby-Bauer disk diffusion method was used to determine antibiotic susceptibility. Of 261 positive cultures, we found Kocuria isolates from 7 cases (2.68%). The mean age of the patients was 5.47 years, ranging from 4 months to 10 years; there were 3 males and 4 females. All patients had either urinary tract disease or symptomatic bacteremia. Vitek-2 identification using a gram-positive (GP) card revealed the presence of Kocuria kristinae in five cases, K. rhizophila in one case, and K. rosea in one case. Susceptibility of the Kocuria species isolates to amikacin, gentamicin and ceftazidime were demonstrated 100% resistance. In conclusion, Kocuria species, which are associated with serious clinical manifestations are an emerging health issue and further attention should be taken for appropriate management of antibiotic treatment as they are intrinsically multi-drug resistant.
A Comparison of Nonparametric Error Rate Estimation Methods in Classification Problems

Assessment of the misclassification error rate is of high practical relevance in many biomedical applications. As it is a complex problem, theoretical results on estimator performance are few. The origin of most findings are Monte Carlo simulations, which take place in the “normal setting”: The covariables of two groups have a multivariate normal distribution; The groups differ in location, but have the same covariance matrix and the linear discriminant function LDF is used for prediction.
Geometrizing Rates of Convergence, III

Consider estimating a functional T(F) of an unknown distribution F E F from data Xl,. , Xn i.i. d. F. Let Ct(E) denote the modulus of continuity of the functional T over F, computed with respect to Hellinger distance. For well-behaved loss functions l(t), we show that infT SUpF EF1(Tn T(F)) is equivalent to l(w(n-1/2)) to within constants, whenever T is linear and F is convex. The same conclusion holds in three nonlinear cases: estimating the rate of decay of a density, estimating the mode and robust nonparametric regression. We study the difficulty of testing between the composite, infinite dimensional hypotheses Ho: T(F) < t and Hl: T(F) ? t + A. Our results hold, in the cases studied, because the difficulty of the full infinite-dimensional composite testing problem is comparable to the difficulty of the hardest simple two-point testing subproblem.
Chlorophyll a Fluorescence Parameters of Hulled and Hull-less Barley (Hordeum vulgare L.) DH Lines Inoculated with Fusarium culmorum

Barley worldwide is affected seriously by Fusarium seedling blight (FSB) and Fusarium head blight (FHB) diseases caused by the Fusarium species. The objective of this study was to facilitate the resistance of hulled and hull-less barley at different growth stages to F. culmorum according to direct parameters: disease rating (DR), fresh weight of leaves and roots, kernel weight per spike, kernel number per spike, plump kernels, and indirect parameters - chlorophyll a fluorescence (CF). Plate assay, greenhouse and field tests were performed on 30 spring barley doubled haploid (DH) lines and their parents infected with Fusarium culmorum. Direct parameters proved that hulled genotypes show less symptoms. Most studied chlorophyll a fluorescence (CF) parameters (apart from DIo/CS – amount of energy dissipated from PSII for laboratory test, TRo/CS – amount of excitation energy trapped in PSII reaction centers, ETo/CS – amount of energy used for electron transport and RC/CS – number of active reaction centres in the state of fully reduced PSII reaction center in field experiment) were significantly affected by F. culmorum infection. In all experiments, hulled genotypes had higher values of CF parameters compared to hull-less ones. Significant correlations were detected between direct and indirect parameters and also between various environments. It was revealed that ABS/CS, TRo/CS, and RC/CS have significant positive correlation in greenhouse test and field experiment. Significant correlations suggest the possibility of applying the CF parameters in selection of barley DH lines resistant to F. culmorum infection.
Diagnostic value of metagenomic next-generation sequencing in sepsis and bloodstream infection

Objective To evaluate the diagnostic value of metagenomic next-generation sequencing (mNGS) in sepsis and bloodstream infection (BSI). Methods A retrospective analysis of patients diagnosed with sepsis and BSI at the First Affiliated Hospital of Zhengzhou University from January 2020 to February 2022 was conducted. All the patients underwent blood culture and were divided into mNGS group and non-mNGS group according to whether mNGS was performed or not. The mNGS group was further divided into early group (< 1 day), intermediate group (1–3 days), and late group (> 3 days) according to the time of mNGS inspection. Results In 194 patients with sepsis and BSI, the positive rate of mNGS for identifying pathogens was significantly higher than that of blood culture (77.7% vs. 47.9%), and the detection period was shorter (1.41 ± 1.01 days vs. 4.82 ± 0.73 days); the difference was statistically significant (p < 0.05). The 28-day mortality rate of the mNGS group (n = 112) was significantly lower than that of the non-mNGS group (n = 82) (47.32% vs. 62.20%, p = 0.043). The total hospitalization time for the mNGS group was longer than that for the non-mNGS group (18 (9, 33) days vs. 13 (6, 23) days, p = 0.005). There was no significant difference in the ICU hospitalization time, mechanical ventilation time, vasoactive drug use time, and 90-day mortality between the two groups (p > 0.05). Sub-group analysis of patients in the mNGS group showed that the total hospitalization time and the ICU hospitalization time in the late group were longer than those in the early group (30 (18, 43) days vs. 10 (6, 26) days, 17 (6, 31) days vs. 6 (2, 10) days), and the ICU hospitalization time in the intermediate group was longer than that in the early group (6 (3, 15) days vs. 6 (2, 10) days); the differences were statistically significant (p < 0.05). The 28-day mortality rate of the early group was higher than that of the late group (70.21% vs. 30.00%), and the difference was statistically significant (p = 0.001). Conclusions mNGS has the advantages of a short detection period and a high positive rate in the diagnosis of pathogens causing BSI and, eventually, sepsis. Routine blood culture combined with mNGS can significantly reduce the mortality of septic patients with BSI. Early detection using mNGS can shorten the total hospitalization time and the ICU hospitalization time of patients with sepsis and BSI.
Neurocognitive Deficits in First-Episode and Chronic Psychotic Disorders: A Systematic Review from 2009 to 2022

Cognitive impairment in patients suffering from schizophrenia spectrum disorders has been discussed as a strong predictor for multiple disease outcome variables, such as response to psychotherapy, stable relationships, employment, and longevity. However, the consistency and severity of cognitive deficits across multiple domains in individuals with first-episode and chronic psychotic disorders is still undetermined. We provide a comprehensive overview of primary research from the years 2009 to 2022. Based on a Cochrane risk assessment, a systematic synthesis of 51 out of 3669 original studies was performed. Impairment of cognitive functioning in patients diagnosed with first-episode psychotic disorders compared with healthy controls was predicted to occur in all assessed cognitive domains. Few overall changes were predicted for chronically affected patients relative to those in the first-episode stage, in line with previous longitudinal studies. Our research outcomes support the hypothesis of a global decrease in cognitive functioning in patients diagnosed with psychotic disorders, i.e., the occurrence of cognitive deficits in multiple cognitive domains including executive functioning, memory, working memory, psychomotor speed, and attention. Only mild increases in the frequency of cognitive impairment across studies were observed at the chronically affected stage relative to the first-episode stage. Our results confirm and extend the outcomes from prior reviews and meta-analyses. Recommendations for psychotherapeutic interventions are provided, considering the broad cognitive impairment already observed at the stage of the first episode. Based on the risk of bias assessment, we also make specific suggestions concerning the quality of future original studies.
Do Firms’ Social Media Fake News Clarifications Mitigate the PEAD Anomaly? Evidence from a Policy Experiment in China

ABSTRACT Combating fake news about the stock market is a major issue in the social media era. We examine the impact of a firm’s social media fake news clarification on the PEAD using a 2010 Chinese policy experiment, which enabled firms to promptly respond to fake rumors on social media platforms. We find that a firm’s clarification of fake news on social media is negatively associated with PEAD, and its effect varies with certain dimensions of firm characteristics. Our evidence suggests that firms can play an active role in combating fake news on social media and in improving information efficiency in the stock market.
Experimental Investigation of Air Radiation from Behind a Strong Shock Wave

Radiation phenomena behind a strong shock wave have been experimentally investigated using a freepiston double-diaphragm shock tube. The shock front is detected by pressure sensors, whose rise time is calibrated by a laser schlieren technique. Spatial distribution of emission spectra correlated with the shock front is obtained for a 270-520 nm wavelength range by means of one-dimensional imaging spectroscopy, in which a wavelength vs. position image is taken by an ICCD camera with the gate time of 100 ns. Molecular spectra of N2 second positive and N^~ first negative band are observed immediately after the shock front, while atomic line spectra from N become dominant shortly after it. The rotational and vibrational temperatures of molecules, and the electronic excitation temperature of atoms are evaluated, and their spatial profiles in the streamwise direction are obtained for a shock velocity of 11.9 km/s and an ambient pressure of 0.3 torr, using N2 as the test gas. The measured temperatures seem to be in significant nonequilibrium with the translational temperature. Also, the relaxation rates for Njj" seem to be much higher than those for Ng.
Green function analysis for SAW devices with arbitrary electrode structures

Green function, or boundary element, techniques are generally agreed to be the most satisfactory methods for rigorous SAW device analysis. Their direct application is however limited by their computational complexity, and, in the past, rigorous analyses have only been attempted for devices with very small numbers of electrodes. An algorithm has been devised that, with certain approximations, will allow a full Green function analysis to be performed relatively quickly on systems with more than 1000 electrodes. The approximations involve limiting short range interactions (electrostatic, etc.) to a certain number of nearest neighbour electrodes, and employing special representations for the long range (acoustic wave) terms. The computational complexity of the algorithm is O(N) for an N electrode structure, as opposed to O(N/sup 3/) for a simple approach.
Scaled boundary finite‐element analysis of a non‐homogeneous axisymmetric domain subjected to general loading

The scaled boundary finite‐element method is derived for elastostatic problems involving an axisymmetric domain subjected to a general load, using a Fourier series to model the variation of displacement in the circumferential direction of the cylindrical co‐ordinate system. The method is particularly well suited to modelling unbounded problems, and the formulation allows a power‐law variation of Young's modulus with depth. The efficiency and accuracy of the method is demonstrated through a study showing the convergence of the computed solutions to analytical solutions for the vertical, horizontal, moment and torsion loading of a rigid circular footing on the surface of a homogeneous elastic half‐space. Computed solutions for the vertical and moment loading of a smooth rigid circular footing on a non‐homogeneous half‐space are compared to analytical ones, demonstrating the method's ability to accurately model a variation of Young's modulus with depth. Copyright © 2003 John Wiley & Sons, Ltd.
Discrete-time saturation constrained adaptive pole assignment control

The performance of a discrete-time adaptive pole assignment controller subject to a saturation control constraint is analyzed. Closed-loop system stability is established for a class of type-I plants. In the presence of plant modeling uncertainties and disturbances, it is shown that the stability is maintained by implementing a simple fixed deadzone in the parameter estimator. If the plant is free from the modeling uncertainties and disturbances, the deadzone threshold can be set to zero. Then, the closed-loop system can be characterized by the desired poles when the control input is not saturated. >
First high spatial resolution interferometric observations of solar flares at millimeter wavelengths

The first high spatial resolution interferometric observations of solar flares at millimeter wavelengths, carried out with the Berkeley-Illinois-Maryland Array are presented. The observations were made at 3.3 mm wavelength during the very active periods of March 1989, using one or three baselines with fringe spacings of 2-5 arcsec. The observations represent an improvement of an order of magnitude in both sensitivity and spatial resolution compared with previous solar observations at these wavelengths. It appears that millimeter burst sources are not much smaller than microwave sources. The most intense bursts imply brightness temperatures of over 10 to the 6th K and are due to nonthermal gyrosynchrotron emission or possibly thermal free-free emission. If the emission in the flash phase is predominantly due to gyrosynchrotron emission, thermal gyrosynchrotron models can be ruled out for the radio emission because the flux at millimeter wavelengths is too high. 8 refs.
Towards Examining the Link Between Green HRM Practices and Employee Green in-Role Behavior: Spiritual Leadership as a Moderator

Purpose Grounding on the supplies-values fit theory, this study examines the effect of green HRM practices on an employee’s in-role green behavior after the Covid-19 pandemic. Moreover, this study examined the mediating role of psychological green climate between green HRM practices and in-role green behaviour. In addition, we studied that spiritual leadership as a buffering mechanism strengthens the relation between psychological green climate and employee in-role behavior. Methods The paths were examined using hierarchical multiple regression and for moderation mediation, we used PROCESS Hayes (2003) to evaluate the data collected from 374 Chinese MNCs employees. Results The findings indicate that green HRM practices have a positive effect on employees’ in-role green behaviour. In addition, psychological green climate mediates the relation between green HRM practices and employee in-role green behavior. Spiritual leadership influences the strength of the moderated mediated path between green HRM practices and employee in-role green behavior (through a psychological green environment). Discussion The most apparent manifestation of green HRM practices is the integration of environmental concerns into traditional HRM processes after Covid-19 pandemic, including hiring, training, evaluating performance, and distributing pay and benefits. These green-focused management initiatives are more likely to result in employees acting greenly.
Pulsed neutron interrogation for detection of concealed special nuclear materials

A new neutron interrogation technique for detection of concealed Special Nuclear Material (SNM) is described. This technique is a combination of timing techniques from pulsed prompt gamma neutron activation analysis with silicon carbide (SiC) semiconductor fast neutron detector technology. SiC detectors are a new class of radiation detectors that are ultra-fast and capable of processing high count rates. SiC detectors can operate during and within nanoseconds of the end of an intense neutron pulse, providing the ability to detect the prompt neutron emissions from fission events produced by the neutrons in concealed SNM on a much faster pulsing time scale than has been achieved by other techniques. Neutron-induced fission neutrons in 235U have been observed in the time intervals between pulses of 14-MeV neutrons from a deuterium-tritium electronic neutron generator. Initial measurements have emphasized the detection of SNM using thermal-neutron induced fission. Neutron pulsing and time-sequenced neutron counts were carried out on a hundreds of microseconds time scale, enabling the observation of prompt fission neutrons induced by the die-away of thermal neutrons following the 14-MeV pulse. A discussion of pulsed prompt-neutron measurements and of SiC detectors as well as initial measurement results will be presented.
Turnover Intention and Organizational Commitment of Primary Healthcare Nurses

Turnover intention is a predictor of the decision to leave an organization, which, if carried out, affects the quality of care provided. There is an association between turnover intention and organizational commitment. The more committed nurses are to the unit in which they work, the more committed they become to the unit’s organizational goals; thus, they tend to continue working for the organization. Aiming to assess the turnover intention and the organizational commitment of nurses in primary healthcare, we conducted a quantitative, observational, descriptive, and cross-sectional study. The Intention of Turnover Scale and the Organizational Commitment Scale were applied in a sample of 297 nurses. Data were analyzed based on descriptive statistics. About 92.8% of the nurses intend to stay at their current workplace and only 7.3% plan to leave soon, suggesting low turnover intention; 84.5% of the nurses are willing to make an effort beyond what is normal to help their organization succeed, and 88.7% feel really interested in the destiny of the organization, which shows high organizational commitment. Pearson’s Coefficient revealed the existence of a significant negative correlation between the factors “Intention to leave” and “Committed to the organization” (r = −0.51, p < 0.01). These findings suggest that, when nurses are more committed to their work and to the organization, they display less intention to leave, keeping the teams committed and motivated towards the organizational goals Our findings may guide nurse managers and policy-makers to develop strategies that retain nurses in organizations, keeping them motivated and engaged, and focusing on higher organizational commitment due to the influence it may have on the turnover intention.
Factorization theorems for Hardy spaces in several variables

The purpose of this paper is to extend to Hardy spaces in several variables certain well known factorization theorems on the unit disk. The extensions will be carried out for various spaces of holomorphic functions on the unit ball of C" as well as for Hardy spaces defined by the Riesz systems on R". These results together with their proofs yield new characterizations of the space BMO (Bounded Mean Oscillation) and show a close relationship between BMO functions and certain linear operators on various LI and H2 spaces. The main tools are the result of Fefferman and Stein [8] on the duality between HI and BMO and a new characterization of BMO in terms of boundedness on L2 of the commutator of a singular integral operator with a multiplication operator. We begin by illustrating these ideas in the one dimensional case: Let F be holomorphic in {I z I < 1} and satisfy sup, 5 F(rete) I dO ? 1 (i.e., F is in H'(dO)). It is well known that F = GG2 with G1, G2 holomorphic and sup, I G,(rel0) 1' ! 1 (i.e., G, e H2(dO)). Write F = f + if, G, = gj + ig withf, g1, g, real. Thenf = Im(GG2) = sg1 1 + gi. Thusafunction f is an imaginary (or real) part of an HI function if and only if it can be represented as glg2 + g192 for L2 functions g, and g2. Furthermore,
Multi-wavelength Brillouin–Raman fiber laser generation assisted by multiple four-wave mixing processes in a ring cavity

A multi-wavelength Brillouin–Raman fiber laser (MBRFL) is generated by using a 7.7 km long dispersion compensating fiber which acts as both the Brillouin and Raman gain media. The MBRFL is pumped at 16 dBm with two Raman pumps at 125 mW. Eleven Stokes and anti-Stokes lines are generated with a line spacing of about 0.155 nm (∼19.86 GHz) without any forward line reflection. By combining the backward and forward outputs, more lines can be generated, with narrower line spacings of about 0.077 nm (∼9.93 GHz). The number of lines can be increased by having higher Brillouin and Raman pump powers. Since Raman amplification can be arranged at any wavelength region, the MBRFL can be obtained at any wavelength as long as all of the equipment and components are prepared in the proposed operational wavelength region.
Random walk models for particle displacements in inhomogeneous unsteady turbulent flows

First a small time analysis is developed for the first and second moments of the velocity (W) and displacement (Z) in one direction of particles marked at a given point in an inhomogeneous unsteady turbulent flow, in terms of the local energy dissipation rate, and the local derivatives of the second and third moments of the vertical component of the velocity field, ∂∼(u23)/∂z and ∼(∂u33)/∂z. Then the appropriate form of a Langevin equation in inhomogeneous turbulence is suggested, namely, dW=(−W/TL+a1)dt+a1/22 dωt where a1, a2, and TL are functions of the particle position and time, and dωt is a random Gaussian velocity increment with ∼(dωt)=0 and ∼((dωt))2=dt. For simplicity, only one component of the particle motion, W(t), is considered. The functions a1 and a2 are determined by relating the random walk model to the Eulerian conservation equations for the mass of the contaminant and volume of the flow (i.e., the continuity equation), using the Fokker–Planck equation and the Eulerian equations for the mo.