Miracle-dz/UniFAR-FTUs huggingface dataset:
Cardiopulmonary stress during exercise training in patients with COPD

Exercise training is an essential component of pulmonary rehabilitation. However, the cardiopulmonary stress imposed during different modalities of exercise training is not yet known. In the present study, the cardiopulmonary stress of a 12-week exercise training programme in 11 chronic obstructive pulmonary disease (COPD) patients (forced expiratory volume in one second 42±12%pred, age 69±6 yrs) was measured. Pulmonary gas exchange and cardiac frequency (fC) of three training sessions were measured with a portable metabolic system at the beginning, mid-term and end of the programme. Symptoms were assessed with Borg scores. The exercise intensity was compared with the recommendations for exercise training by the American College of Sports Medicine (ACSM). Training effects were significant (maximum change in work: 14±11 Watts, 6-min walk test: 44±36 m). Whole body exercises (cycling, walking and stair climbing) consistently resulted in higher cardiopulmonary stress (oxygen uptake (V′O2), minute ventilation and fC) than arm cranking and resistance training. Dyspnoea was higher during cycling than resistance training. Patients exercised for >70% (>20 min) of the total exercise time at >40% of the V′O2 reserve and fC reserve (“moderate” intensity according to the ACSM) throughout the programme. The cardiopulmonary stress resistance training is lower than during whole-body exercise and results in fewer symptoms. In addition, exercise testing based on guidelines using a fixed percentage of baseline peak performance and symptom scores achieves and sustains training intensities recommended according to the American College of Sports Medicine.
Intravenous device associated blood stream staphylococcal infection in paediatric patients

Background & objectives: Intravenous device (IVD) associated nosocomial blood stream infections due to staphylococci are major cause of morbidity and mortality. The present study was carried out to assess the frequency of staphylococcal IVD associated infections in a paediatric ward of a tertiary case hospital. Prevalence of resistance to commonly used antimicrobials in hospital acquired staphylococcal isolates was also tested. Methods: Children admitted in paediatric wards with IVD for more than 48 h were enrolled. Blood, IVD tip at the time of removal, skin swab at the site of insertion of IVD and nasal swab were collected and cultured by standard protocol. All staphylococcal isolates from any source were analyzed for antimicrobial susceptibility by disk diffusion method. Genotyping matching of those staphylococcal isolates was done which were isolated from different sites of the same patient, but were phonotypically similar. Genotype of blood isolate was compared with genotype of isolate from nose/IVD/skin. Results: Staphylococcus aureus was the most frequent blood isolate (8.7%) followed by Candida (2.9%), coagulase negative staphylococci (CoNS 2.6%), Pseudomonas spp. (0.4%), Klebsiella spp. (0.3%) and Escherichia coli (0.1%). Isolation of microorganisms from blood was significantly higher in patients whose skin, IVD and nose were colonized by same microorganism (P<0.001). None of the staphylococcal isolate was found to be resistant to glycopeptides (vancomycin and teicoplanin). High penicillin and oxacillin resistance was present in both S. aureus (penicillin resistance; 76.8%, oxacillin resistance; 66.7%) and CoNS (penicillin resistance; 73.3%, oxacillin resistance; 60.0%). Among CoNS biotypes, S. haemolyticus was commonest blood isolate while S. epidermidis was commonest isolate from Skin/nose. Only 33.3 per cent of S. aureus blood stream infections and most of S. epidermidis and S. haemolyticus blood infections were IVD associated. Interpretation & conclusions: Staphylococci were the major causative agent of nosocomial blood stream infections. All episodes of septicaemia due to S. epidermidis and S. haemolyticus were IVD associated while only 1/3 of S. aureus septicaemia was IVD associated.
Stellar populations of massive elliptical galaxies in very rich clusters

We present a detailed stellar population analysis of 27 massive elliptical galaxies within four very rich clusters at redshift z ∼ 0.2: A115, A655, A963 and A2111. Using the new, high-resolution stellar populations models developed in our group, we obtained accurate estimates of the mean luminosity-weighted ages and relative abundances of CN, Mg and Fe. We derived the age, [CN/H], [Mg/H], [Fe/H] and the abundance ratios [CN/Fe] and [Mg/Fe] as functions of the galaxy velocity dispersion, a. We have found that [CN/H] and [Mg/H] are correlated with a while [Fe/H] and Log(age) are not. In addition, both abundance ratios [CN/Fe] and [Mg/Fe] increase with a. Furthermore, the [CN/H]-σ and [CN/Fe]-σ slopes are steeper for galaxies in very rich clusters than those in the less dense Virgo and Coma clusters. On the other hand, [Mg/H]-σ and [Mg/Fe]-σ slopes keep constant as functions of the environment. Our results are compatible with a scenario in which the stellar populations of massive elliptical galaxies, independently of their environment and mass, had formation time-scales shorter than ∼ 1 Gyr. This result implies that massive elliptical galaxies have evolved passively since, at least, as long ago as z ∼ 2. For a given galaxy mass, the duration of star formation is shorter in those galaxies belonging to more dense environments, whereas the mass-metallicity relation appears to be also a function of the cluster properties: the denser the environment is, the steeper are the correlations. Finally, we show that the abundance ratios [CN/Fe] and [Mg/Fe] are the key 'chemical clocks' to infer the star formation history time-scales in ellipticals. In particular, [Mg/Fe] provides an upper limit for those formation time-scales, while [CN/Fe] appears to be the most suitable parameter to resolve them in elliptical galaxies with a < 300 km s -1 .
Modeling of the power-line channel in automotive Li-ion batteries with Rogowski coils as coupling elements

A model of the transmission channel is essential for designing a power-line communication (PLC) system for a lithium-ion battery pack in electric and hybrid vehicles. Currently, measurements of lithium-ion batteries have to be performed by specially trained staff in safety chambers, because they might cause severe safety problems. A simulation model of the battery would therefore highly facilitate the analysis of different battery packs. Our approach is to extend an existing circuit-based model of the power-line channel with a 3-D electromagnetic (EM) model. The 3-D EM model is well capable of describing the inner environment of the battery pack as well as PLC coupling elements, which is necessary because power lines can also act as antennas. On the other hand, a fully detailed 3-D EM model cannot be simulated within a reasonable period of time. This article gives essential insights into future PLC systems for battery packs in order to ensure safe usage of electric and hybrid cars for the user and the environment.
Prone Position Ventilation Used during a Transfer as a Bridge to Ecmo Therapy in Hantavirus-Induced Severe Cardiopulmonary Syndrome

Background. Transport of critically ill patients is a complex issue. We present a case using prone positioning as a bridge to extracorporeal membrane oxygenation (ECMO), performed by a critical retrieval team from a university hospital. Case Report. A 28-year-old male developed fever, progressive respiratory failure, and shock. He was admitted to ICU from a public hospital, and mechanical ventilation was begun, but clinical response was not adequate. ECMO was deemed necessary due to severe respiratory failure and severe shock. A critical retrieval team of our center was assembled to attempt transfer. Prone positioning was employed to stabilize and transfer the patient, after risk-benefit assessment. Once in our hospital, ECMO was useful to resolve shock and pulmonary edema secondary to Hantavirus cardiopulmonary syndrome. Finally, he was discharged with normal functioning. Conclusion. This case exemplifies the relevance of a retrieval team and bridge therapy. Prone positioning improves oxygenation and is safe to perform as transport if performed by a trained team as in this case. Preparation and organization is necessary to improve outcomes, using teams and organized networks. Catastrophic respiratory failure and shock should not be contraindications to transferring patients, but it must be done with an experienced team.
A Square Root Inverse Filter for Efficient Vision-aided Inertial Navigation on Mobile Devices

In this paper, we present a square-root inverse sliding window filter (SR-ISWF) for vision-aided inertial navigation systems (VINS). While regular inverse filters suffer from numerical issues, employing their square-root equivalent enables the usage of single-precision number representations, thus achieving considerable speed ups as compared to doubleprecision alternatives on resource-constrained mobile platforms. Besides a detailed description of the SR-ISWF for VINS, which focuses on the numerical procedures that enable exploiting the problem’s structure for gaining in efficiency, this paper presents a thorough validation of the algorithm’s processing requirements and achieved accuracy. In particular, experiments are conducted using a commercial-grade cell phone, where the proposed algorithm is shown to achieve the same level of estimation accuracy, when compared to state-of-the-art VINS algorithms, with significantly higher speed.
Social Work Continuing Education: Current Issues and Future Direction

ABSTRACT Continuing education is arising as an area of rapid growth and increased attention in the social work profession. Conceptually, the impetus and focus are on the promotion of the principles of lifelong learning and professional replenishment; but pragmatically, the driving force has been the virtually universal requirement of continuing education hours for social work licensure renewal. This article lays out the history of continuing social work education and discusses the current and emerging issues herein for the profession.
Can We Feed More Distillers Grains

Distillers grains is a very good protein source (>30% crude protein) which is high in ruminally undegradable protein and is very good energy source (NE L ~1.02 Mcal/lb of dry matter; [DM]) for lactating cows and growing cattle. The modest fat concentration (10 to 12% of DM) and the readily digestible fiber (39% neutral detergent fiber; NDF) contribute to the high energy in distillers grains. The current large supply and competitive prices for distillers grains make it economically attractive to feed as much as possible. One can easily formulate nutritionally balanced diets for lactating cows that contain approximately 20% of the ration DM as distillers grains, an amount that is more than the conservative amounts that some people recommend, but less than the 30 to 40% that has been fed in some dairy studies or the 40 to 50% that has been included in diets of finishing cattle. This presentation summarizes the results of feeding distillers grains, especially larger amounts, to dairy cattle, points out where the maximums may occur, and points to possible differences to consider when feeding wet versus dried distillers grains.
The jasmonate pathway mediates salt tolerance in grapevines

Salt stress is a major constraint for many crop plants, such as the moderately salt-sensitive economically important fruit crop grapevine. Plants have evolved different strategies for protection against salinity and drought. Jasmonate signalling is a central element of both biotic and abiotic stress responses. To discriminate stress quality, there must be cross-talk with parallel signal chains. Using two grapevine cell lines differing in salt tolerance, the response of jasmonate ZIM/tify-domain (JAZ/TIFY) proteins (negative regulators of jasmonate signalling), a marker for salt adaptation Na+/H+ EXCHANGER (NHX1), and markers for biotic defence STILBENE SYNTHASE (StSy) and RESVERATROL SYNTHASE (RS) were analysed. It is shown that salt stress signalling shares several events with biotic defence including activity of a gadolinium-sensitive calcium influx channel (monitored by apoplastic alkalinization) and transient induction of JAZ/TIFY transcripts. Exogenous jasmonate can rescue growth in the salt-sensitive cell line. Suppression of jasmonate signalling by phenidone or aspirin blocks the induction of JAZ/TIFY transcripts. The rapid induction of RS and StSy characteristic for biotic defence in grapevine is strongly delayed in response to salt stress. In the salt-tolerant line, NHX1 is induced and the formation of reactive oxygen species, monitored as stress markers in the sensitive cell line, is suppressed. The data are discussed in terms of a model where salt stress signalling acts as a default pathway whose readout is modulated by a parallel signal chain triggered by biotic factors downstream of jasmonate signalling.
Galaxy shapes and alignments in the MassiveBlack-II hydrodynamic and dark matter-only simulations

We compare the shapes and intrinsic alignments of galaxies in the MassiveBlack-II cosmological hydrodynamic simulation (MBII) to those in a dark matter-only (DMO) simulation performed with the same volume (100$h^{-1}$Mpc)$^{3}$, cosmological parameters, and initial conditions. Understanding the impact of baryonic physics on galaxy shapes and alignments and their relation to the dark matter distribution should prove useful to map the intrinsic alignments of galaxies from hydrodynamic to dark matter-only simulations. We find that dark matter subhalos are typically rounder in MBII, and the shapes of stellar matter in low mass galaxies are more misaligned with the shapes of the dark matter of the corresponding subhalos in the DMO simulation. At $z=0.06$, the fractional difference in the mean misalignment angle between MBII and DMO simulations varies from $\sim 28 \% - 12 \%$ in the mass range $10^{10.8} - 6.0 \times 10^{14} h^{-1}M_{\odot}$. We study the dark matter halo shapes and alignments as a function of radius, and find that while galaxies in MBII are more aligned with the inner parts of their dark matter subhalos, there is no radial trend in their alignments with the corresponding subhalo in the DMO simulation. This result highlights the importance of baryonic physics in determining the alignment of the galaxy with respect to the inner parts of the halo. Finally, we compare the ellipticity-direction (ED) correlation for galaxies to that for dark matter halos, finding that it is suppressed on all scales by stellar-dark matter misalignment. In the projected shape-density correlation ($w_{\delta+}$), which includes ellipticity weighting, this effect is partially canceled by the higher mean ellipticities of the stellar component, but differences of order $30-40\%$ remain on scales $> 1$ Mpc over a range of subhalo masses, with scale-dependent effects below $1$ Mpc.
Preparing for the Classroom: Mental Health Knowledge Improvement, Stigma Reduction and Enhanced Help-Seeking Efficacy in Canadian Preservice Teachers

Mental health literacy is fundamental to improving knowledge about mental health, decreasing stigma, and, therefore, enhancing help-seeking behaviors. The purpose of this cohort study is to evaluate the impact of a mental health literacy program on preservice teachers’ knowledge, attitudes, and help-seeking efficacy. Sixty preservice teachers in a Canadian university participated in a professional development day and completed a survey of their mental health knowledge, attitudes toward mental illness, and help-seeking efficacy. Compared with baseline data, results demonstrated significant and substantial improvements on all three outcomes immediately following the session and after 3 months. Provision of mental health literacy education among preservice teachers may be an effective approach to help them better address student mental health needs in their future teaching career.
The HELLAS2XMM Survey. II. Multiwavelength Observations of P3: An X-Ray-bright, Optically Inactive Galaxy

Recent X-ray surveys have clearly demonstrated that a population of optically dull, X-ray-bright galaxies is emerging at 2-10 keV fluxes of the order of 10-14 ergs cm-2 s-1. Although they might constitute an important fraction of the sources responsible for the hard X-ray background, their nature is still unknown. With the aim of better understanding the physical mechanisms responsible for the observed properties, we have started an extensive program of multiwavelength follow-up observations of hard X-ray, optically quiet galaxies discovered with XMM-Newton. Here we report the results of what can be considered the first example of this class of objects: CXOU J031238.9-765134, originally discovered by Chandra, and optically identified by Fiore et al. (2000) with an apparently normal early-type galaxy at z = 0.159, usually known as FIORE P3. Analysis of the broadband energy distribution suggests the presence of a heavily obscured active nucleus.
K 1 currents responsible for repolarization in mouse ventricle and their modulation by FK-506 and rapamycin

K 1 currents responsible for repolarization in mouse ventricle and their modulation by FK-506 and rapamycin. Am. J. Physiol. Heart Circ. Physiol. 278: H886–H897, 2000. —Modulation of mouse ventricular action potentials and K 1 currents was examined using the whole cell patch-clamp technique. The composite mouse ventricular K 1 current (consisted of an outward transient followed by a slowly decaying sustained component. Use of the K 1 channel blockers tetraethylammonium and 4-aminopyridine and a transgenic mouse model revealed three pharmacologically and kinetically distinct currents: I to , which contributed to the transient component; I K , which contributed to the sustained component; and a slowly activating current ( I slow ), which contributed to both components. The immunosuppressant FK-506 increased action potential duration at 90% repolarization by 66.7% by decreasing the sustained component ( 2 48% at 1 60 mV) and prolonging recovery from inactivation (by 26% at 200 ms) of the transient component. These effects were isolated to I K and I to , respectively. Rapamycin had strikingly similar effects on these currents. Both FK-506 and rapamycin are known to target the immunophilin FKBP12. Thus we conclude that FKBP12 modulates speciﬁc mouse K 1 channels, and thus the mouse ventricular action potential, by interacting directly with K 1 channel proteins or with other associated regulatory proteins.
Does teacher affective support matter? An investigation of the relationship among perceived teacher affective support, sense of belonging, academic emotions, academic self-efficacy beliefs, and academic effort in middle school mathematics classrooms

The purpose of this study was to explore the relationship among perceived teacher affective support, sense of belonging, academic enjoyment, academic hopelessness, academic self-efficacy, and academic effort in middle school mathematics classrooms. The targeted relationships were examined through the test of an hypothesized structural model. Person-environment fit and social-cognitive theories were adopted for this particular investigation. Previous research pointed out the need for the assessment of the role of affective learning environments on students’ motivational, social, emotional, and academic outcomes (Turner, Meyer, Midgley, & Patrick, 2003; Wentzel, 2003). Considering the central role of teachers in classrooms (Fraser, 2003), for the current investigation, the Teacher Affective Support Scale was developed. This scale gathered theoreticallysupported essential components of affective support determined as following: Caring, respect, concern for and interest in students, valuing, recognition, fair treatment, encouragement, high expectations, and listening. The population selected for this investigation was early adolescents because of the critical significance of this developmental stage in human life (Roeser, Eccless, & Sameroff, 1998). The current inquiry was carried out in mathematics classrooms due to the knowledge that mathematics is one of the primary school subjects related strongly to
Asociación entre depresión e ideación suicida en un grupo de adolescentes colombianos

Escopo . Estimar a associacao entre os sintomas depressivos e a ideacao suicida em adolescentes. Metodologia . Foi feito um estudo de corte transeccional, no qual foi aplicado o Questionario de Depressao Infantil (CDI) e o Inventario de Ideacao Suicida Positiva e Negativa (PANSI) num grupo de 289 adolescentes escolarizados (126 homens e 163 mulheres), com idades compreendidas entre 14 e 17 anos de idade, inscritos em quatro instituicoes educativas publicas de Tunja- Colombia. Resultados . O 30% dos participantes presentaram um alto nivel de ideacao suicida e o 9% reportaram sintomas depressivos, sendo as pontuacoes mais altas as das mulheres em contraste com as dos homens para as duas variaveis do estudo. Tambem foram encontradas relacoes signiﬁ cativas entre ideacao suicida e ânimo negativo (= 0.43, p < 0.000), anhedonia (= 0.40, p < 0.000) e autoestima negativa (= 0.44, p < 0.000). As analises de regressao logistica mostraram como fatores preditores de ideacao suicida em mulheres, o ânimo negativo e a autoestima negativa, enquanto que nos homens nao foi identiﬁ cado fator preditivo nenhum. Conclusao . Os sintomas depressivos relacionados com estado de ânimo e autoestima negativa sao fatores de risco relevantes associados com o componente cognitivo da conduta suicida em mulheres adolescentes.
Síndrome de burnout en personal de enfermería de Arequipa

Objetivo: Analizar las manifestaciones del sindrome de burnout en enfermeras. Metodos: Estudio correlacional realizado en una muestra de 47 enfermeras de la ciudad de Arequipa. Se uso el Inventario de Burnout de Maslach para profesiones de servicios humanos y pruebas estadisticas para establecer las correlaciones y comparaciones entre variables. Resultados: Los resultados indican que 21,3 % de enfermeras presento niveles severos de agotamiento emocional y baja realizacion personal, y que el 29,8 % tuvo altos niveles de despersonalizacion. Las correlaciones indicaron que el sindrome de burnout, el agotamiento emocional y la despersonalizacion se relacionan positivamente (p<0,01). El analisis de varianza demostro que existen diferencias significativas en la puntuacion global del sindrome segun el tiempo de servicio. Conclusiones: Las enfermeras presentan niveles considerables de sindrome de burnout sobre todo aquellas que tienen mayor tiempo de servicio o que llevan laborando menos de cinco anos.
Enhancements to RSS Based Indoor Tracking Systems Using Kalman Filters

This paper describes the site survey issues when deploying a wireless local area network (WLAN), the implementation of a location system over the deployed network, and the application of a Kalman filtering algorithm to enhance the tracking performance. We have made a site survey in the Electrical and Computer Engineering (EECE) department of University of New Mexico (UNM) to optimally position the access points. Ekahau Positioning Engine [1] was used to find the coverage areas of all available access points throughout the building. After having the network up and running, the signal strength values at certain locations are recorded and an indoor propagation analysis is made. A nearest neighbors algorithm and its variants are used to construct a location system and possible ways of improvements are discussed. Improvements in the estimation error using a Kalman filter algorithm are then presented.