Miracle-dz/UniFAR-FTUs huggingface dataset:
Influence of Self-Esteem and Social Support on the Depression Stati of Some Clinical Nurses

Objectives: The purpose of this study was to examine the influence of self-esteem and social support on the depression stati of some clinical nurses, and propose basic data for a depression care program. Methods: Between March 31 and April 5 at 2006, a self-reporting questionnaire survey was administered to 200 nurses at a general hospital located in Gyeonggi-do. The Beck’s Depression Inventory (BDI) was used to assess the subjects’depression stati. Results: The average BDI score of the clinical nurses was 8.9±7.5, with 59% belonging to the normal category, 28% having mild depressive symptoms, and 13% with a moderate degree of depressive symptoms. The degree of depression was significantly increased in the clinical nurses with a lower self-esteem and less social support. The degree of depression was significantly increased in the clinical nurses with a lower self-esteem and less social support. According to a multivariate regression analysis, a significant association was found between self-esteem and social support in relation to the depression of clinical nurses. The effect of social support was found to not be significant in cases where the self-esteem was high: however, depression was significantly influenced by social support in cases where the self-esteem was low. Conclusion: Self-esteem and social support were observed to influence the depression stati of clinical nurses. Therefore, it is suggested that an increase in depression management programs is required to create systematic management to maintain an atmosphere of high self-esteem and close relationships to manage the depression of clinical nurses.
Dynamic modeling of modular multilevel converters

Theory for the dynamics of modular multilevel converters is developed in this paper. It is shown that the sum capacitor voltage in each arm often can be considered instead of the individual capacitor voltages, thereby significantly reducing the complexity of the system model. A selection of the so-called insertion indices, which compensates for the sum-capacitor-voltage ripples, is considered. The system which results for this selection is analyzed, and is shown to be asymptotically stable. Finally, explicit formulas for the steady-state sum-capacitor-voltage ripples are derived.
PS2APP Transgenic Mice, Coexpressing hPS2mut and hAPPswe, Show Age-Related Cognitive Deficits Associated with Discrete Brain Amyloid Deposition and Inflammation

Transgenic mice, expressing mutant β-amyloid precursor proteins (βAPPs), have lead to a better understanding of the pathophysiological processes in Alzheimer's disease (AD). In many of these models, however, the temporal development of cognitive decline and the relationship to Aβ deposition and inflammation are unclear. We now report a novel transgenic mouse line, PS2APP (PS2N141I × APPswe), which develops a severe cerebral amyloidosis in discrete brain regions, and present a cross-sectional analysis of these mice at 4, 8, 12, and 16 months of age. Each age cohort was investigated for changes in behavior, electrophysiology of synapse efficacy, ELISA-determined Aβ load, histopathology, and in immunoelectron microscopy. Cognitive deficits were first observed at 8 months when Aβ deposits and inflammation were restricted to discrete brain regions, namely the subiculum and frontolateral (motor and orbital) cortex. As early as 5 months, electron microscopy revealed the presence, in these regions, of pre-plaque, immunogold-labeled extracellular fibrillar Aβ. At the same age, increased levels of insoluble Aβ were detected by ELISA, with Aβ1-40 levels exceeding those of Aβ1-42. Further cognitive decline occurred in an age-related manner, and this was accompanied by the spread of amyloidosis to ultimately affect not only neo- and limbic cortices, but also thalamic and pontine nuclei. Dentate gyrus post-tetanic potentiation was significantly attenuated at 17 months, and there were also significant differences in paired-pulse parameters. This systematic cross-sectional study of the behavioral and pathological changes in the PS2APP mouse indicates that it develops age-related cognitive decline associated with severe amyloidosis and inflammation in discrete brain regions and therefore is suitable for testing a range of potential symptomatic and disease-modifying therapies for AD.
Childhood psychological predictors of unemployment : evidence from four cohort studies

Recent research in economics and psychology has examined the childhood noncognitive skills which predict future economic success. However, there has been relatively little research on whether these skills predict future unemployment. This thesis uses data from four cohort studies (total N = 47,328) from Great Britain and the United States to examine how lifetime trajectories of unemployment are affected by childhood differences in self-control (chapter 3), conscientiousness (4), and mental health (5-6). These are some of the first studies to examine how pre-labor market measures of these psychological characteristics prospectively predict future unemployment. Chapters 3, 5 and 6 are the first studies to examine how early psychological characteristics interact with recessions to produce differential unemployment outcomes. After adjusting for cognitive ability and key sociodemographic indicators (e.g. gender, SES), all three of these psychological characteristics are found to predict future unemployment. The effects are statistically significant and economically meaningful, comparable in magnitude to the effects of intelligence. Chapter 3 shows that childhood with poor self-control were disproportionately more likely than their more self-controlled peers to become unemployed during the 1980s UK recession, and chapters 5 and 6 find a similar effect for children with high psychological distress compared to their less distressed peers during the 1980s UK recession and 2007 US recession. These studies demonstrate the value of using psychological research to examine economic outcomes. The chief policy implication is that interventions which improve childhood levels of self-control, conscientiousness and mental health may be an effective way to reduce future population unemployment levels. In the short term, remediation programs which take into account individual psychological differences may improve the efficacy of
Transmission capacity analysis of cognitive radio networks under co-existence constraints

Cognitive radio networks (CRNs) are envisioned to eradicate the artificial scarcity caused by today's stringent spectrum allocation policy. In this article, we develop a comprehensive statistical framework to study the transmission capacity (TC) of the primary network in the presence of collocated CRN operating under self-coexistence constraint. Considering a system model based on stochastic geometry and the primary beacon enabled interweave spectrum sharing model, outage probability (OP) of a typical primary receiver is studied. Scaling laws for the OP of a typical primary receiver are established. With the help of simulations it is shown that TC of the primary network decreases with increasing number of secondary users and degree of the self-coexistence.
Sensorimotor Adaptation in Whole-Body Postural Control

The ability to maintain stable, upright standing is a critical component of our daily activities. This ability requires that we generate appropriate postural control when making voluntary movements and when responding to perturbations, and appropriately adapt that control to compensate for changing conditions. Despite this, adaptation of whole-body postural control is not well understood. This dissertation investigates the control strategies involved in the adaptation of whole-body postural control and how well this learning transfers to different environments. We used an experimental paradigm in which subjects made reaching movements while standing and holding the handle of a force-generating robotic arm that could apply novel perturbations to the arm and standing posture concurrently. First, we sought to identify the signal driving postural adaptation. We examined adaptation in response to varying movement error sizes. Adaptation scaled near-proportionally with error, but was insensitive to very small errors. In a follow-up study, we investigated the effect of small yet consistent errors. Despite the small errors, subjects did adapt, indicating that both error size and consistency play a role in driving adaptation. Next, we investigated how control strategies are affected by postural stability conditions. Results showed that stability conditions significantly affect how adaptation strategies are used; furthermore, transfer of adapted control between different conditions is affected by the condition in which the task is initially learned. Lastly, we tested whether postural control can be adapted and transferred independently of arm control. When subjects failed to transfer their adapted arm control between arms, they also failed to transfer their postural control, even though the postural perturbation had not changed. Thus, arm control over-wrote the learned postural control, necessitating re-learning of a previously learned strategy. This suggests that postural control is dependent on information about the arm movement dynamics in this combined task. Generally, this work demonstrates that postural adaptation manifests many characteristics of general motor adaptation. It also highlights how heavily postural control is influenced by and coordinated with concurrent arm movements. However, postural stability conditions play a significant role in determining how standing posture is controlled, adapted, and transferred between different contexts.
Effects of a career course on students’ career decision-making self-efficacy, indecision and difficulties

Many college students have difficulties deciding on a major or field of study at university. Hartman, Fuqua and Hartman (1983) reported that if undecided students did not receive help, they were more likely to drop out of school and to be unhappy with their eventual choice of career. Furthermore, undecided students may make poor career and academic choices which will impact their future (Gati, Krauz & Osipow, 1996; Fouad, Cotter & Kantamneni, 2009). While the need for career interventions has increased (Fouad et al., 2009; Reese & Miller, 2010), few studies have systematically evaluated the impact and outcomes of career interventions designed to reduce career indecision. In addition, the majority of studies were conducted on Western populations thereby restricting the generalisability of findings across cultures. Therefore, there is a need to investigate whether theory-based interventions that have shown positive outcomes on Western samples can be applied in a Southeast Asian context. This study aims to address this gap in research literature through examining the effects of an intervention to help Malaysian students increase their career decision-making self-efficacy, and reduce career indecision and career decision-making difficulties. This thesis describes the research work aimed at evaluating the effectiveness of a career course designed to help students make career decisions in a Southeast Asian context. It details the quasi-experimental longitudinal intervention utilising intervention and comparison groups that was carried out with first-year Malaysian college students. Participants in both groups were given questionnaires assessing career decision-making self-efficacy, career indecision and career decision-making difficulties at various time points. Results indicated that participants in the intervention group upon completion of the course experienced increased career decision-making self-efficacy and reduced career indecision. Participants in the intervention group also showed an overall decrease in career decision-making difficulties but further investigation revealed that the decrease was non-significant in one subcategory of difficulties, namely difficulties related to the lack of motivation. The implications of these findings are discussed in terms of existing literature and suggestions for further research are also included.
intradaily seasonality of returns distribution A quantile regression approach with intradaily VaR evaluation

We investigate intradaily seasonal patterns on the distribution of high frequency financial returns. Using quantile regression we show the expansions and shrinks of the probability law through the day of three years of 15 minutes sampled stock returns. Returns are more dispersed and less concentrated around the median at the hours near the opening and closing. We provide intradaily value at risk assessments and we show how it adapts to the changes of dispersion over the day.
Effects of temperature and glycerol and methanol-feeding profiles on the production of recombinant galactose oxidase in Pichia pastoris

Optimization of protein production from methanol‐induced Pichia pastoris cultures is necessary to ensure high productivity rates and high yields of recombinant proteins. We investigated the effects of temperature and different linear or exponential methanol‐feeding rates on the production of recombinant Fusarium graminearum galactose oxidase (EC 1.1.3.9) in a P. pastoris Mut+ strain, under regulation of the AOX1 promoter. We found that low exponential methanol feeding led to 1.5‐fold higher volumetric productivity compared to high exponential feeding rates. The duration of glycerol feeding did not affect the subsequent product yield, but longer glycerol feeding led to higher initial biomass concentration, which would reduce the oxygen demand and generate less heat during induction. A linear and a low exponential feeding profile led to productivities in the same range, but the latter was characterized by intense fluctuations in the titers of galactose oxidase and total protein. An exponential feeding profile that has been adapted to the apparent biomass concentration results in more stable cultures, but the concentration of recombinant protein is in the same range as when constant methanol feeding is employed. © 2014 The Authors Biotechnology Progress published by Wiley Periodicals, Inc. on behalf of American Institute of Chemical Engineers Biotechnol. Prog. , 30:728–735, 2014
Analysis and Design of 60-GHz SPDT Switch in 130-nm CMOS

This paper proposes a new 60-GHz single-pole-double-throw (SPDT) switch. It is designed in a 1.2-V 130-nm bulk CMOS and has a small core area of 222 μm × 92 μm. The switch exhibits measured insertion loss of 1.7 dB, isolation of 22 dB, input return loss of 20 dB, output return loss of 14 dB, and simulated power-handling capability of 13.8 dBm at 60 GHz. The proposed SPDT switch demonstrates such superior performances and consumes a much smaller die area to those of other SPDT switches, and therefore has potential to be used in highly integrated 60-GHz CMOS radios.
Intercomparison between satellite‐derived aerosol optical thickness and PM2.5 mass: Implications for air quality studies

We explore the relationship between column aerosol optical thickness (AOT) derived from the Moderate Resolution Imaging SpectroRadiometer (MODIS) on the Terra/Aqua satellites and hourly fine particulate mass (PM2.5) measured at the surface at seven locations in Jefferson county, Alabama for 2002. Results indicate that there is a good correlation between the satellite‐derived AOT and PM2.5 (linear correlation coefficient, R = 0.7) indicating that most of the aerosols are in the well‐mixed lower boundary layer during the satellite overpass times. There is excellent agreement between the monthly mean PM2.5 and MODIS AOT (R > 0.9), with maximum values during the summer months due to enhanced photolysis. The PM2.5 has a distinct diurnal signature with maxima in the early morning (6:00 ∼ 8:00AM) due to increased traffic flow and restricted mixing depths during these hours. Using simple empirical linear relationships derived between the MODIS AOT and 24hr mean PM2.5 we show that the MODIS AOT can be used quantitatively to estimate air quality categories as defined by the U.S. Environmental Protection Agency (EPA) with an accuracy of more than 90% in cloud‐free conditions. We discuss the factors that affect the correlation between satellite‐derived AOT and PM2.5 mass, and emphasize that more research is needed before applying these methods and results over other areas.
Closed universes, de Sitter space, and inflation

We present a new approach to constructing inflationary models in closed universes. Conformal embedding of closed-universe models in a de Sitter background suggests a quantisation condition on the available conformal time. This condition implies that the universe is closed at no greater than the 10% level. When a massive scalar field is introduced to drive an inflationary phase this figure is reduced to closure at nearer the 1% level. In order to enforce the constraint on the available conformal time we need to consider conditions in the universe before the onset of inflation. A formal series around the initial singularity is constructed, which rests on a pair of dimensionless, scale-invariant parameters. For physically-acceptable models we find that both parameters are of order unity, so no fine tuning is required, except in the mass of the scalar field. For typical values of the input parameters we predict the observed values of the cosmological parameters, including the magnitude of the cosmological constant. The model produces a very good fit to the most recent CMBR data. The primordial curvature spectrum predicts the low-l fall-off in the CMB power spectrum observed by WMAP. The spectrum also predicts a fall-off in the matter spectrum at high k, relative to a power law. A further prediction of our model is a large tensor mode component, with r~0.2.
Encouraging knowledge sharing among employees: How job design matters

Job design is one of the most frequently researched practices in the Human Resource Management (HRM) literature, and knowledge sharing has become an important and heavily researched managerial practice. The links between these practices, however, have received little attention in the literature. We argue that job design matters to knowledge sharing for motivational reasons. Specifically, jobs contain characteristics that stimulate different kinds of motivation toward knowledge sharing, which have different effects on individual knowledge sharing behavior. We develop six hypotheses that unfold these ideas and test them on the basis of individual-level data collected within a single firm. The hypotheses are tested in a LISREL model that confirms that job characteristics, such as autonomy, task identity, and feedback, determine different motivations to share knowledge, which in turn predict employees' knowledge sharing behaviors. © 2009 Wiley Periodicals, Inc.
Pengembangan Modul Biologi Berbasis Model Guided Inquiry Laboratory Pada Materi Bioteknologi

Penelitian dan pengembangan modul ini bertujuan untuk mengetahui: 1) karakteristik produk modul biologi berbasis model guided inquiry l aboratory pada materi bioteknologi, 2) kelayakan prototipe modul biologi berbasis model guided inquiry l aboratory pada materi bioteknologi, 3) keefektifan modul biologi berbasis model guided inquiry l aboratory pada materi bioteknologi. Penelitian dan pengembangan ini menggunakan metode Borg & Gall yang telah dimodifikasi menjadi sembilan tahapan: 1) tahap penelitian pendahuluan, 2) tahap perencanaan, 3) tahap pengembangan rancangan awal produk, 4) tahap uji coba lapangan permulaan, 5) tahap revisi produk tahap pertama, 6) tahap uji lapangan terbatas atau uji keterbacaan, 7) tahap revisi produk tahap kedua, 8) tahap uji lapangan operasional, 9) tahap revisi produk akhir. Model pengembangan modul menggunakan desains ADDIE ( Analysis, Design, Development, Implementation, Evaluations ). Instrumen yang digunakan meliputi: angket, observasi, wawancara dan tes. Analisis data yang digunakan selama penelitian dan pengembangan adalah analisis deskriptif, teknik persentase dan uji independen sample t test. Hasil penelitian dan pengembangan menunjukkan: 1) karakteristik modul berbasis model guided inquiry l aboratory dikembangkan berdasarkan sintaks guided inquiry l aboratory , meliputi: observation, manipulation, generalitation,verifikation dan aplication, 2) kelayakan prototipe modul berbasis model guided inquiry l aboratory menurut para ahli berkategori “sangat baik”, praktisi pendidikan berkategori “sangat baik” dan menurut siswa berkategori “sangat baik”, 3) modul biologi berbasis model guided inquiry l aboratory efektif meningkatkan hasil belajar aspek sosial dengan skor rata-rata sebesar 85.94, aspek keterampilan dengan skor rata-rata sebesar 93.47, aspek pengetahuan siswa dengan skor rata-rata sebesar 86.58, berdasarkan hasil uji independent sample t test menunjukkan adanya perbedaan postes t hasil belajar aspek pengetahuan antara kelas modul dengan kelas existing pada materi bioteknologi dengan signifikan T Hitung (0,002) < T Tabel (0.05).
Trace spaces of directed tori with rectangular holes

Raussen (2010) gave the trace space, which corresponds to the executions of parallel non-looped, non-branching processes as a prod-simplicial complex derived from a poset. The connected components represent equivalent executions. For looped processes, the state space is a torus and the trace space is a disjoint union of trace spaces of deloopings. In the current paper, we develop the index poset for the trace space of the deloopings from the once delooped case. When just one process is looped, the index poset is generated as words in a regular language. We also construct a corresponding automaton.
Attentional asymmetries – cause or consequence of human right handedness?

It is well established that the vast majority of the population favors their right hand when performing complex manual tasks. However, the developmental and evolutionary underpinnings of human manual asymmetries remain contentious. One often overlooked suggestion is that right handedness may stem from an asymmetrical bias in attention, with the right hand being allocated more attentional resources during bimanual tasks than the left hand (Peters, 1981). This review examines the evidence for attentional asymmetries during a variety of bimanual tasks, and critically evaluates the explanatory power of this hypothesis for explaining the depth and breadth of individual- and population-level manual asymmetries. We conclude that, while the attentional bias hypothesis is well-supported in adults, it requires further validation from a developmental perspective to explain the full breadth of adult manual laterality.