1,210 research outputs found
Utilizing Self-Determination Theory in Teaching the Research and Evaluation Course
Research is an important component in counselor preparation. However, students often are not motivated in taking the research course. The author explores and applies the Self-Determination Theory (SDT; Ryan & Deci, 2000) to teaching the research and evaluation course. Self-Determination Theory posits that student will be autonomously motivated to learn when basic needs of autonomy, relatedness, and competence are present in the classroom. Strategies to increase all three basic needs are discussed in this paper
Advanced Wildfire Hose Clamp
We, Team AHC, have designed, manufactured, and tested an advanced firehose clamp for wildland firefighters to use during extended hose lays. The clamp is designed to stop high-pressure water flow in a firehose so that a new length of hose can be added. The current industry standard, the Timberline hose clamp, is expensive and wears down over time effecting the speed and success of hose lays. Our goal was to improve firefighter\u27s tools and therefore improve fire fighting effectiveness
Work-life management for workforce maintenance: A qualitative comparative study
Nowadays, owing to the changing nature of the work environment, with its ever-increasing demands, the quality of working life and its relationship with the individual's wellbeing are recognized worldwide as vital for the workforce. This study analyzes the role of employees' perception of five quality of working life attributes (specifically workplace conditions, working life autonomy, corporate citizenship, remuneration, and workplace diversity and inclusion) in ensuring the individual's wellbeing focusing in particular on workers' perception of work-life balance, working life opportunities, and health and wellness. The results of the fuzzy-set qualitative comparative analysis reveal the same various configurations for the three outcomes that suggest a new perspective towards understanding the factors in employees' working life that enhance their wellbeing, and so improve workforce maintenance. The results have managerial implications related to work-life management for workforce maintenance
The role of social media data in operations and production management
Social media data contain rich information in posts or comments written by customers. If those data can be extracted and analysed properly, companies can fully utilise this rich source of information. They can then convert the data to useful information or knowledge, which can help to formulate their business strategy. This cannot only facilitate marketing research in view of customer behaviour, but can also aid other management disciplines. Operations management (OM) research and practice with the objective to make decisions on product and process design is a fine example. Nevertheless, this line of thought is under-researched. In this connection, this paper explores the role of social media data in OM research. A structured approach is proposed, which involves the analysis of social media comments and a statistical cluster analysis to identify the interrelationships amongst important factors. A real-life example is employed to demonstrate the concept
The Scientific Context of WFIRST Microlensing in the 2020s
As discussed in Exoplanet Science Strategy (National Academies of Sciences Engineering
and Medicine 2018), WFIRST (Akeson et al. 2019) is uniquely capable of finding planets
with masses as small as Mars at separations comparable to Jupiter, i.e., beyond the current
ice lines of main sequence stars. In semimajor axis, these planets fall between the close-in
planets found by Kepler (Coughlin et al. 2016) and the wide separation gas giants seen by
direct imaging (e.g. Lagrange et al. 2009) and ice giants inferred from ALMA observations
(Zhang et al. 2018). Furthermore, the smallest planets WFIRST can detect are smaller
than the planets probed by radial velocity (Mayor et al. 2011; Bonfils et al. 2013) and Gaia
(Perryman et al. 2014) at comparable separations. Interpreting planet populations to infer
the underlying formation and evolutionary processes requires combining results from multiple
detection methods to measure the full variation of planets as a function of planet size, orbital
separation, and host star mass. Microlensing is the only way to find planets from 0.5 to 5M⊕ at separations of 1 to 5 au.
Fundamentally, the case for a microlensing survey from space has not changed in the past
20 years: going to space allows wide-field diffraction-limited observations that can resolve
main-sequence stars in the bulge, which in turn allows the detection and characterization of
the smallest microlensing signals including those from planets with masses at least as small
as Mars (Bennett & Rhie 2002). What has changed is that ground-based microlensing is
reaching its limits, which underscores the scientific necessity for a space-based microlensing
survey to measure the population of the smallest planets. Ground-based microlensing has
found a break in the mass-ratio distribution at about a Neptune mass-ratio (Suzuki et al.
2016; Jung et al. 2018), implying that Neptunes are the most common microlensing planet
and that planets smaller than this are rare. However, ground-based microlensing reaches
its detection limits at mass ratios only slightly below the observed break. The WFIRST
microlensing survey will measure the shape of the mass-ratio function below the break by
finding numerous smaller planets: ~ 500 Neptunes, a comparable number of large gas giants,
and ~ 200 Earths (if they are as common as Neptunes), and it can detect planets as small
as 0.1M⊕ (Penny et al. 2018). In addition, because it will also measure host star masses and
distances, WFIRST will also track the behavior of the planet distribution as a function of
separation and host star mass
Development and equity : A gendered inquiry in a swidden landscape
Market-driven development is transforming swidden landscapes and having different impacts along intersections of gender, age and class. In Kapuas Hulu, West Kalimantan, Indonesia, Dayak communities practicing swidden agriculture are making choices on maintaining traditional land use systems, and engaging in rubber, oil palm and conservation (REDD + ) in their livelihood strategies. Although REDD + has been heralded as an alternative to oil palm as a sustainable development option, it is still far from full implementation. Meanwhile, oil palm has become a reality, with large scale plantations that offer job opportunities and produce new sources of prestige, but create contestations around traditional land use systems. We employ the gender asset agriculture project (GAAP) framework and apply an intersectional lens to highlight power relations underlying gendered differences in land, labor and social capital in this process of transformation. Our findings suggest that market interventions produce major changes for men and women, young and old, land cultivators and wage earners. This has created new opportunities for some and new risks for others, with those having power to access diverse types of knowledge, ranging from inheritance rights to market information and job opportunities, best able to exploit such opportunities.Peer reviewe
In vivo development of dendritic orientation in wild-type and mislocalized retinal ganglion cells
<p>Abstract</p> <p>Background</p> <p>Many neurons in the central nervous system, including retinal ganglion cells (RGCs), possess asymmetric dendritic arbors oriented toward their presynaptic partners. How such dendritic arbors become biased during development <it>in vivo </it>is not well understood. Dendritic arbors may become oriented by directed outgrowth or by reorganization of an initially unbiased arbor. To distinguish between these possibilities, we imaged the dynamic behavior of zebrafish RGC dendrites during development <it>in vivo</it>. We then addressed how cell positioning within the retina, altered in <it>heart-and-soul </it>(<it>has</it>) mutants, affects RGC dendritic orientation.</p> <p>Results</p> <p><it>In vivo </it>multiphoton time-lapse analysis revealed that RGC dendrites initially exhibit exploratory behavior in multiple directions but progressively become apically oriented. The lifetimes of basal and apical dendrites were generally comparable before and during the period when arbors became biased. However, with maturation, the addition and extension rates of basal dendrites were slower than those of the apical dendrites. Oriented dendritic arbors were also found in misplaced RGCs of the <it>has </it>retina but there was no preferred orientation amongst the population. However, <it>has </it>RGCs always projected dendrites toward nearby neuropil where amacrine and bipolar cell neurites also terminated. Chimera analysis showed that the abnormal dendritic organization of RGCs in the mutant was non-cell autonomous.</p> <p>Conclusions</p> <p>Our observations show that RGC dendritic arbors acquire an apical orientation by selective and gradual restriction of dendrite addition to the apical side of the cell body, rather than by preferential dendrite stabilization or elimination. A biased arbor emerges at a stage when many of the dendritic processes still appear exploratory. The generation of an oriented RGC dendritic arbor is likely to be determined by cell-extrinsic cues. Such cues are unlikely to be localized to the basal lamina of the inner retina, but rather may be provided by cells presynaptic to the RGCs.</p
Mutuality and reciprocity: foregrounding relationships in Design and Social Innovation
Although the importance of interpersonal relationships to processes of design and social innovation (D&SI) has been acknowledged, there is limited research in identifying what constitutes a relational approach in D&SI. In spite of their importance for relationship formation and maintenance, questions of respect, reciprocity, power and trust –and their intersection with various cultural practices– are often left untouched in design discourse. This paper reports early findings from interviews with design and social innovation practitioners in the Asia Pacific region, detailing the significance of putting relationships first, establishing mutuality and building reciprocity. The paper contributes insights into how practitioners perceive relationships as both meaningful and essential and suggest areas for further research to develop a more nuanced understanding of relationships in D&SI
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