Miracle-dz/UniFAR-FTUs huggingface dataset:
Development of Full Frequency Bandwidth Measurement of VFTO in UHV GIS

In order to study the characteristics of very fast transient overvoltage (VFTO) in ultra-high voltage (UHV) gas-insulated switchgear (GIS), the authors have developed a full frequency bandwidth measurement system based on a porthole-type capacitive voltage divider. Three kinds of measurement circuits for the measurement system are studied and the influence of cable length on measurement results is analyzed in this paper. The calibration of the measurement system using step response was conducted. The results show that the measurement system of the capacitive voltage divider integrated with an impedance converter has a bandwidth ranging from 0.003 Hz to 300 MHz at least. It can be used to measure the full VFTO during DS operation perfectly. A full-scale UHV DS (disconnect switchgear) is used to establish the test circuit. The measurement system with good anti-electromagnetic interference ability was constructed. Four different measurement locations are chosen on which to install the measurement system. An approximate total of 3000 closing and opening operation tests were conducted. Due to the wide frequency band of the measurement system, it is possible to obtain the full VFTO waveform accurately and conveniently. According to the waveforms, the key parameters of VFTO, such as trapped charge voltage, peak value of VFTO, breakdown characteristic of DS, frequency spectrum of transient waveform, and the overvoltage coefficient could be obtained.
Sex Differences among Drivers in Yielding Right-of-Way

238 drivers were observed at intersections where yielding right-of-way was specified by new traffic regulations introduced 5 wk. prior to the study. 62% of the sample failed to comply with the new regulations. Female drivers were significantly more compliant than were male drivers. The most compliant group were female drivers when the other driver was male. There were no differences among other driver-sex combinations. Driver's age and the type of vehicle having right-of-way did not affect yielding rates.
The Survey for Ionization in Neutral Gas Galaxies. II. The Star Formation Rate Density of the Local Universe

We derive observed Hα and R-band luminosity densities of an H I-selected sample of nearby galaxies using the SINGG sample to be l = (9.4 ± 1.8) × 1038 h70 ergs s-1 Mpc-3 for Hα and l = (4.4 ± 0.7) × 1037 h70 ergs s-1 Å-1 Mpc-3 in the R band. This R-band luminosity density is approximately 70% of that found by the Sloan Digital Sky Survey. This leads to a local star formation rate density of log(SFR [ℳ☉ yr-1 Mpc-3]) = -1.80(random) ± 0.03(systematic) + log(h70) after applying a mean internal extinction correction of 0.82 mag. The gas cycling time of this sample is found to be tgas = 7.5 Gyr, and the volume-averaged equivalent width of the SINGG galaxies is EW(Hα) = 28.8 Å (21.2 Å without internal dust correction). As with similar surveys, these results imply that SFR(z) decreases drastically from z ~ 1.5 to the present. A comparison of the dynamical masses of the SINGG galaxies evaluated at their optical limits with their stellar and H I masses shows significant evidence of downsizing: the most massive galaxies have a larger fraction of their mass locked up in stars compared with H I, while the opposite is true for less massive galaxies. We show that the application of the Kennicutt star formation law to a galaxy having the median orbital time at the optical limit of this sample results in a star formation rate decay with cosmic time similar to that given by the SFR(z) evolution. This implies that the SFR(z) evolution is primarily due to the secular evolution of galaxies, rather than interactions or mergers. This is consistent with the morphologies predominantly seen in the SINGG sample.
Change and innovation in European LIS education

This paper examines current trends and developments in higher education (HE) and the responses of HE institutions to these changes. The contribution of Library and Information science (LIS) institutions to innovation in Europe is examined through three case studies – the Manchester Metropolitan University (MMU), the Robert Gordon University (RGU) and the Tallinn Pedagogical University (TPU). Technology, globalisation, and competition have caused the ground to shift under HE worldwide. HE institutions have had to rethink their environment in the light of new technologies. During the last five years MMU, RGU and TPU have developed new programmes and courses, new teaching and learning approaches and used information communication technology to support teaching and learning. All staff members have been actively involved in change and the innovation process. In most cases changes have been incremental and the impact of these changes has been rather positive.
Extremely low frequency electromagnetic fields modulate expression of inducible nitric oxide synthase, endothelial nitric oxide synthase and cyclooxygenase‐2 in the human keratinocyte cell line HaCat: potential therapeutic effects in wound healing

Background Extremely low frequency (ELF) electromagnetic fields (EMF) are known to produce a variety of biological effects. Clinical studies are ongoing using EMF in healing of bone fractures and skin wounds. However, little is known about the mechanisms of action of ELF‐EMF. Several studies have demonstrated that expression and regulation of nitric oxide synthase (NOS) and cyclooxygenase‐2 (COX‐2) are vital for wound healing; however, no reports have demonstrated a direct action of ELF‐EMF in the modulation of these inflammatory molecules in human keratinocytes.
Situational Awareness: A core component in the development of a humanitarian common logistic operating picture

The onset of a natural disaster or complex emergency frequently sees multiple agencies responding in a relatively uncoordinated way. One potential solution is that of developing a 'Humanitarian Common Logistic Operating Picture' (H-CLOP) that would capture, analyse, validate, distribute and present the disposition of both existing and forecast demands, and the status and location of material in transit as the basis for improved inter-agency logistic decision making. This paper considers the challenges inherent in the development of 'situational awareness' as a core component of the H-CLOP concept, and it highlights a number of areas for further research.
Internal Migration in Ghana: Determinants and Welfare Impacts

Using a recently compiled dataset on migration and remittances in Ghana, this paper estimates the determinants of an individuals likelihood to be an internal migrant and the relationship between internal migration and welfare. The analysis finds that the likelihood to migrate is determined by a combination of individual (pull) and community-level (push) characteristics. The probability of migration is higher for younger and more educated individuals, but communities with higher levels of literacy, higher rates of subsidized medical care, and better access to water and sanitation are less likely to produce migrants. The analysis finds that households with migrants tend to be better off than similar households without migrants, even after controlling for the fact that households with migrants are a non-random sample of Ghanaians. However, the positive relationship is only true for households with at least one migrant in urban areas; the welfare of households with migrants exclusively in rural areas is no different from households without any migrants.
Improving Performance in High School Algebra: What Students with Learning Disabilities are Saying

Success in high school algebra is gaining increased importance for all students, including those identified as having learning disabilities (LD). Despite its importance, we know little about what students with and without LD say about their algebra classes. This study examined findings from a survey of 410 general education students and 46 peers with LD. The survey established data relative to the participants' favorite and least favorite classes, most difficult (and best) parts of algebra class, and ideas for helping more students to succeed. In addition, student participants reported whether selected interventions and accommodations were helpful.
A Longitudinal Study of the Relationship between Positive Affect and Both Problem- and Emotion-Focused Coping Strategies

The relationship between positive affect (PA), negative affect (NA) and reported use of problem-focused or emotion-focused coping strategies was investigated in a longitudinal study. Japanese undergraduates (200 men and 270 women) completed a version of the PANAS (Watson, Clark, and Tellegen, 1988) and the situational version of the General Coping Questionnaire (Sasaki and Yamasaki, 2004). These two measures were administered twice, five weeks apart (T1 and T2). The results showed some significant sex differences. Higher PA at T1 was associated with greater reported use of cognitive reinterpretation as a coping strategy at T2 only for men, whereas greater use of cognitive reinterpretation at T1 was associated with higher PA at T2 only for women. These results suggest that there is no mutually reciprocal relationship between PA and use of cognitive reinterpretation as a coping strategy.
Optimal Training Sequences for Joint Channel and Frequency-Dependent IQ Imbalance Estimation in OFDM-based Receivers

Nowadays OFDM is combined with advanced multiple access and multiple antenna techniques in order to improve the link capacity. In this context, a lot of effort is spent on developing inexpensive wireless OFDM-based receivers. Direct-conversion radio frequency receivers are appealing because they avoid costly IF filters. This kind of receivers implies analog RF I/Q separation introducing an unwanted in-band image interfearence encedue to the mismatch between the in-phase and quadrature branches. Unfortunately, systems combining OFDM with multiple antennas and multiple access techniques are very sensitive to I/Q mismatch, mostly when high order modulation schemes are applied. A digital compensation of this un-wanted effect is required. In this paper, we propose a method for estimating jointly the frequency dependent I/Q imbalance and the propagation channel in the frequency domain. First the channel is estimated based on a pilot optimized to suppress the interference caused by I/Q imbalance. Second I/ C imbalance is estimated and compensated relying on the estimated channel. Both steps are low cost in terms of implementation complexity. Finally, it is shown that the performance of the channel estimate is not degraded by I/Q imbalance. The proposed algorithm enables the system to work at high SNRs.
E-WOM messaging on social media: Social ties, temporal distance, and message concreteness

Purpose The purpose of this paper is to explore the intentions to share electronic word-of-mouth (E-WOM) messages on social media websites depending on tie strength, perceptions of temporal distance and the concreteness of promotional messages. Design/methodology/approach A 2×2×2 mixed design is used. Temporal distance (near vs distant) and message concreteness (text vs picture) are between-subjects factors; sharing intentions (close friends vs general public) is a within-subjects factor. Findings Findings indicate that consumers are more likely to share promotional messages with their strong rather than weak ties. If they perceive that purchases will occur soon, concrete promotional messages will more strongly motivate them to share the message with their friends. However, if they perceive that purchases will occur in the distant future, abstract messages are more motivating. The difference occurs because construal-level theory is more effective among strong E-WOM ties. Originality/value By studying senders’ perspectives, the authors make a new theoretical and practical contribution to the emerging literature on E-WOM communication. Specifically, the authors show how senders are persuaded to share information with their strong- or weak-tie audiences according to the concreteness of a message and temporal distance. The authors add construal-level theory and advertising message processing to the domain of E-WOM and social ties research.
Assessment of the changes in alveolar bone quality after fixed orthodontic therapy: A trabecular structure analysis

Background. Tooth displacement changes the periodontium. The aim of orthodontic treatment is desired tooth movement with minimum side effects on the alveolar bone quality. The aim of the present study was to assess changes of alveolar trabeculation in children, young adults and adults and the two genders. Methods. In this cross-sectional study, 63 patients who had been treated in Department of Orthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran, were chosen with convenient sampling method. They were divided into three groups based on their age. Their digitized panoramic radiographs (PRs) were evaluated at six interdental sites from the mesial aspect of the mandibular second molars to the distal aspect of the mandibular first premolars using a visual index. The trabeculation pattern was assigned as either dense (score 3), dense-sparse (score 2) or sparse (score 1). Data were imported to SPSS. Mean of the scores before treatment (score B) and mean of them after treatment (score A) were compared for each group with paired t-test. Changes between score B and sore A of the groups were compared using one-way ANOVA and post hoc tests. Results. Mean score A was significantly higher than mean score B in children (P = 0.001). In contrast, mean score A was significantly lower than mean score B in young adults (P = 0.003). Conclusion. Orthodontists should be cautious when treating young adults and adults regarding the probable, yet possibly temporary, negative effects of orthodontic therapy on the alveolar bone quality.
Does e-Health technology design affect m-Health informatics acceptance? A case study

This paper explores and analysis the influence of e-Health technology design on intention to use m-Health informatics, from users' perceptions, viewpoint, and experience. This study assesses the influence and the relationship between e-Health technology design as the independent variable (predictor) and the intention to use m-Health as a dependent variable. The results indicated that there is a direct significant relation between e-Health technology design and intention to use m-Health informatics. The results also confirmed that intention to use m-Health informatics is influenced by the perceptions of the user of e-Health technology in terms of the design approach, especially in relation to the navigation and the data presentation. This suggests that a well-structured e-Health technology design will increase the intention to use m-Health informatics.
Structure of silk by raman spectromicroscopy: From the spinning glands to the fibers

Raman spectroscopy has long been proved to be a useful tool to study the conformation of protein‐based materials such as silk. Thanks to recent developments, linearly polarized Raman spectromicroscopy has appeared very efficient to characterize the molecular structure of native single silk fibers and spinning dopes because it can provide information relative to the protein secondary structure, molecular orientation, and amino acid composition. This review will describe recent advances in the study of the structure of silk by Raman spectromicroscopy. A particular emphasis is put on the spider dragline and silkworm cocoon threads, other fibers spun by orb‐weaving spiders, the spinning dope contained in their silk glands and the effect of mechanical deformation. Taken together, the results of the literature show that Raman spectromicroscopy is particularly efficient to investigate all aspects of silk structure and production. The data provided can lead to a better understanding of the structure of the silk dope, transformations occurring during the spinning process, and structure and mechanical properties of native fibers. © 2011 Wiley Periodicals, Inc. Biopolymers 97: 322–336, 2012.
Experience with early postoperative feeding after abdominal aortic surgery.

BACKGROUND Abdominal aortic surgery is a form of major vascular surgery, which traditionally involves long hospital stays and significant postoperative morbidity. Experiences with transit ileus are often encountered after the aortic surgery. Thus traditional postoperative care involves delayed oral feeding until the patients regain their normal bowel activities. This report examines the feasibility of early postoperative feeding after abdominal aortic aneurysm (AAA) open-repair. METHODS From May 2002 through May 2003, 10 consecutive patients with infrarenal AAA who underwent elective surgical open-repair by the same surgeon in our department were reviewed. All of them had been operated upon and cared for according to the early feeding postoperative care protocol, which comprised of adjuvant epidural anesthesia, postoperative patient controlled analgesia, early postoperative feeding and early rehabilitation. The postoperative recovery and length of hospital stay were reviewed and analyzed. RESULTS All patients were able to sip water within 1 day postoperatively without trouble (Average; 12.4 hours postoperatively). All but one patient was put on regular diet within 3 days postoperatively (Average; 2.2 days postoperatively). The average postoperative length of stay in hospital was 5.8 days. No patient died or had major morbidity. CONCLUSIONS Early postoperative feeding after open repair of abdominal aorta is safe and feasible. The postoperative recovery could be improved and the length of stay reduced by simply using adjuvant epidural anesthesia during surgery, postoperative epidural patient-controlled analgesia, early feeding, early ambulation, and early rehabilitation. The initial success of our postoperative recovery program of aortic repair was demonstrated.
Scheduling Real-Time Transactions with Disk Resident Data

Managing transactions with real-time requirements and disk resident data presents many new problems. In this paper we address several: How can we schedule transactions with deadlines? How do the real-time constraints affect concurrency control? How does the scheduling of IO requests affect the timeliness of transactions? How should exclusive and shared locking be handled? We describe a new group of algorithms for scheduling realtime transactions which produce serializable schedules. We present a model for scheduling transactions with deadlines on a single processor disk resident database system, and evaluate the scheduling algorithms through detailed simulation.
A sangre y fuego. La violencia de Antioquia, Colombia 1946-1953

Mary Roldan, A sangre y fuego. La Violencia en Antioquia, Colombia 1946-1953. Bogota: Instituto Colombiano de Antropologia e Historia - Fundacion para la Promocion de la Ciencia y la Tecnologia, 2003, 435 paginas. Incluye apendices, tablas y mapas. Habria que comenzar por el titulo, que tantas y tantas rememoraciones, tantos sentimientos encontrados produce en los colombianos mayores de 60 anos. En el acto del lanzamiento la autora nos confeso que se decidio por el por indicacion del editor ( un guino al mercado) pero que la vez lo encuentra lleno de significacion y del todo adecuado al contenido, y al periodo que abarca.
Improving nutritional care: innovation and good practice.

AIMS This paper presents examples of good practice in nutritional screening and care and identifies methods used to overcome contextual constraints and discusses the implications for nursing practice in hospitals. BACKGROUND Nutritional screening is an important step in identifying those at risk of malnutrition, but does not produce improved nutritional care unless it results in a care plan that is acted on. The importance of nutrition and implications for clinical care make it imperative to improve practice. DESIGN Qualitative investigation. METHODS Between January 2011-February 2012, focus groups were held using a semi-structured discussion guide with nine groups of health professionals (n = 80) from one hospital: four with nurses, three with doctors and two with dietitians. Discussions were audio-recorded, transcribed and coded into themes and sub-themes, which were then depicted in a thematic map and illustrated with verbatim quotes. FINDINGS Three strategies for sustaining effective nutritional practice emerged: establishing routines to ensure screening was undertaken; re-organizing aspects of care to promote good practice; developing innovative approaches. Issues to be addressed were the perceived disconnection between mandatory screening and the delivery of effective care, a requirement for nutrition education, organizational constraints of a large university hospital and the complexities of multidisciplinary working. CONCLUSION Professionals seeking to improve nutritional care in hospitals need to understand the interaction of system and person to facilitate change. Nursing staff need to be able to exercise autonomy and the hospital system must offer enough flexibility to allow wards to organize nutritional screening and care in a way that meets the needs of individual patients.
Understanding the work passion–performance relationship: The mediating role of organizational identification and moderating role of fit at work

Despite a burgeoning of research that examines work passion, the relationships between harmonious and obsessive work passion and job performance have received insufficient attention. Using data from 233 employee–supervisor dyads from multiple organizations in Russia, this study examines the mediating role of organizational identification and the moderating roles of three different types of fit perceptions on this relationship. Results indicate that organizational identification mediates the effect of harmonious work passion – but not obsessive work passion – on performance. Only two types of fit perceptions – person–organization and demands–abilities – were found to moderate the relationship between work passion and performance. Finally, the results showed that person–organization fit perceptions moderate the indirect effect (through organizational identification) of both types of work passion on performance, whereas needs–supplies fit perceptions only moderate the indirect effect of harmonious work passion on performance. This study contributes to the work passion and fit literatures by empirically addressing the complex relationship between work passion, fit, organization identification and job performance.
Regular mosaic of synaptic contacts among three retinal neurons

Retinal bipolar, amacrine, and ganglion cells contact each other within precisely defined synaptic laminae, but the spatial distribution of contacts between the cells is generally treated as random. Here we show that not to be the case. Excitatory inputs to inner retinal neurons were visualized by introduction of a plasmid coding for the postsynaptic protein PSD95‐GFP. Our initial finding was that synapses on the dendrites of retinal ganglion cells are regularly spaced, at 2–3‐μm intervals, along the dendrites. Thus, the presence of a PSD95 punctum creates a nearby zone from which other inputs appear to be excluded. Despite their great variation in size and different morphologies, the spacing is similar for the arbors of different retinal ganglion cell types. Regular spacing was also observed for the starburst amacrine cells. This regularity is mirrored in the spacing of axonal varicosities of the stratified bipolar cells, which have a regular, nonrandom interval consistent with that of the PSD95 puncta on ganglion cells. Thus, for each level of the inner plexiform layer all three cell types participate in a single 2D mosaic of synaptic contacts. These findings raise a new set of questions: How does the self‐avoidance of synaptic sites along an individual dendrite arise and how is it physically maintained? Why is a regular spacing of inputs important for the computational function of the cells? Finally, which of the three players, if any, is developmentally responsible for the initial establishment of the pattern? J. Comp. Neurol. 519:341‐357, 2011. © 2010 Wiley‐Liss, Inc.