20,083 research outputs found
Too much free time: Coos County Youth who are least involved in out-of-school activities are most likely to use drugs and alcohol
Carsey Institute researchers are seeing links between the self-reported substance use and involvement in out-of-school activities. As part of a ten-year tracking survey of high school students in Coos County, New Hampshire, this brief finds that those most involved with constructive activities report the least amount of substance abuse
Out-of-school time matters: activity involvement and positive development among Coos County youth
This brief looks at the connections between how youth spend their free time and positive or negative attitudes about themselves and their future plans. Family studies assistant professor and Carsey faculty fellow Erin Hiley Sharp used data from the Carsey Institute\u27s Coos County Youth Survey to show differences by activity level and students\u27 expectations for positive outcomes in their future
Studies on electrochemical formation and reduction of oxide films on noble and transition metals Interim report
Surface oxidation of Pt electrodes in pure solutions and resolution of various stages of oxygen uptake by Pt surface
Sensemaking Practices in the Everyday Work of AI/ML Software Engineering
This paper considers sensemaking as it relates to everyday software engineering (SE) work practices and draws on a multi-year ethnographic study of SE projects at a large, global technology company building digital services infused with artificial intelligence (AI) and machine learning (ML) capabilities. Our findings highlight the breadth of sensemaking practices in AI/ML projects, noting developers' efforts to make sense of AI/ML environments (e.g., algorithms/methods and libraries), of AI/ML model ecosystems (e.g., pre-trained models and "upstream"models), and of business-AI relations (e.g., how the AI/ML service relates to the domain context and business problem at hand). This paper builds on recent scholarship drawing attention to the integral role of sensemaking in everyday SE practices by empirically investigating how and in what ways AI/ML projects present software teams with emergent sensemaking requirements and opportunities
Electronic scene generator expansion system
The design, fabrication, and installation of additions and modifications to the electronic scene generator located at the NASA Manned Spacecraft Center, Houston, Texas, are described. The equipment delivered was incorporated into the electronic scene generator to enhance its capabilities by providing: (1) additional source computer interfaces; (2) additional edges thereby allowing more detailed scenes; (3) the ability to share edges to effect economies in complex scenes; (4) the ability to use edges without the constraints of a configuration catalog; and (5) the simplified implementation of new environments and environment modifications
Properties of "35" Spin-(5/2) Baryon Resonances in a Model with Broken SU(3)
We investigate the properties of a set of J =(5/2)^+ resonances appearing in a 35-dimensional representation of
SU(3), as proposed by Abers, Balázs, and Hara. A simple dynamical calculation gives an estimate for the
mass differences within the supermultiplet. The matrix elements for the SU(3) allowed decays into meson
plus resonance are given in terms of one parameter and the SU(3)-violating matrix elements for decay into
meson plus baryon are given by two parameters
Stakeholder identification in the requirements engineering process
Adequate, timely and effective consultation of relevant stakeholders is of paramount importance in the requirements engineering process. However, the thorny issue of making sure that all relevant stakeholders are consulted has received less attention than other areas which depend on it, such as scenario-based requirements, involving users in development, negotiating between different viewpoints and so on. The literature suggests examples of stakeholders, and categories of stakeholder, but does not provide help in identifying stakeholders for a specific system. In this paper, we discuss current work in stakeholder identification, propose an approach to identifying relevant stakeholders for a specific system, and propose future directions for the work
Doing gender and development: understanding empowerment and local gender relations
A major dilemma in Gender and Development (GAD) work is why it is that sometimes women may feel better off colluding with gendered structures that ensure their continued subordination rather than seeking approaches that will allow them to break free of this. Kandiyoti (1988 Gender and Society 2 274-90) has identified this apparent collusion as 'patriarchal bargains', which offer women greater advantages than they perceive can be achieved by challenging the prevailing order. Such women are therefore reluctant to engage in empowering activities that may challenge their gendered bargain. This paper explains this dilemma in the context of GAD work undertaken with Bedouin women in Southern Egypt
Voltage imaging of waking mouse cortex reveals emergence of critical neuronal dynamics.
Complex cognitive processes require neuronal activity to be coordinated across multiple scales, ranging from local microcircuits to cortex-wide networks. However, multiscale cortical dynamics are not well understood because few experimental approaches have provided sufficient support for hypotheses involving multiscale interactions. To address these limitations, we used, in experiments involving mice, genetically encoded voltage indicator imaging, which measures cortex-wide electrical activity at high spatiotemporal resolution. Here we show that, as mice recovered from anesthesia, scale-invariant spatiotemporal patterns of neuronal activity gradually emerge. We show for the first time that this scale-invariant activity spans four orders of magnitude in awake mice. In contrast, we found that the cortical dynamics of anesthetized mice were not scale invariant. Our results bridge empirical evidence from disparate scales and support theoretical predictions that the awake cortex operates in a dynamical regime known as criticality. The criticality hypothesis predicts that small-scale cortical dynamics are governed by the same principles as those governing larger-scale dynamics. Importantly, these scale-invariant principles also optimize certain aspects of information processing. Our results suggest that during the emergence from anesthesia, criticality arises as information processing demands increase. We expect that, as measurement tools advance toward larger scales and greater resolution, the multiscale framework offered by criticality will continue to provide quantitative predictions and insight on how neurons, microcircuits, and large-scale networks are dynamically coordinated in the brain
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