Modality preference and performance when seniors consult online information

2008 ◽  
Vol 7 (3) ◽  
Author(s):  
P. Wright ◽  
A.J. Soroka ◽  
S. Belt ◽  
D.T. Pham ◽  
S. Dimov ◽  
...  
2011 ◽  
Vol 5 (1) ◽  
pp. 83-105 ◽  
Author(s):  
Jessie Y. C. Chen

A military vehicle crew station environment was simulated and a series of three experiments was conducted to examine the workload and performance of the combined position of the gunner and robotics operator in a multitasking environment. The study also evaluated whether aided target recognition (AiTR) capabilities (delivered through tactile and/or visual cuing) for the gunnery task might benefit the concurrent robotics and communication tasks and how the concurrent task performance might be affected when the AiTR was unreliable (i.e., false alarm prone or miss prone). Participants’ spatial ability was consistently found to be a reliable predictor of their targeting task performance as well as their modality preference for the AiTR display. Participants’ attentional control was found to significantly affect the way they interacted with unreliable automated systems.


2018 ◽  
Vol 14 (2) ◽  
pp. 119-134
Author(s):  
Rahmat Suparman ◽  
Gina Lucita

Evaluation is an important aspect of leadership training management since the result of evaluation can be used as inputs for future improvement. However, the current practices of training evaluation are dominated by in-training evaluation to measure the participants’ reaction and learning. Training institutions are still reluctant to conduct post training evaluation to find out the performance of the alumni as the impact and benefit of leadership training. This article attemtps to describe the result of post leadership training evaluation, focusing on describing the alumni career and performance using online information system. From the operational point of view, this study found out that using information system is really helpful in managing evaluation data faster and more acurately. The findings of this study indicate that the majority of the respondents admitted their performances have improved after the training as indicated by the continuation of their innovation projects. Key Words: Leadership Training, Evaluating Training Impact, Information System AbstrakEvaluasi adalah tahapan penting dalam manajemen pelatihan kepemimpinan karena hasil evaluasi dapat menjadi input berharga untuk proses perbaikan. Namun, praktek evaluasi pelatihan yang saat ini dilakukan masih terbatas pada evaluasi saat pelatihan untuk menilai reaksi dan pencapaian kompetensi peserta. Lembaga pelatihan masih jarang melaksanakan evaluasi pascapelatihan untuk menilai kinerja alumni pelatihankepemimpinan. Tulisan ini mencoba memaparkan hasil evaluasi pascapelatihan kepemimpinan dengan fokus kepada karir dan kinerja para alumni dengan menggunakan bantuan teknologi informasi dalam jaringan (daring). Dari sisi proses pelaksanaan evaluasi, data menunjukkan bahwa sistem informasi daring dapat dengan cepat dan akurat menghasilkan informasi tentang karir, keberlanjutan proyek perubahan, dan peningkatan kinerja individu para alumni. Sedangkan hasil analisis data menunjukkan bahwa mayoritas responden evaluasi menyatakan mereka mengalami peningkatan kinerja pascapelatihan yang ditunjukkan dengan keberlanjutan proyek perubahan / inovasi di organisasinya. Kata Kunci: Pelatihan Kepemimpinan, Evaluasi Dampak Pelatihan, Sistem Informasi


1973 ◽  
Vol 39 (6) ◽  
pp. 465-469 ◽  
Author(s):  
R. P. Waugh

The Illinois Test of Psycholinguistic Abilities was administered to 166 second graders who were classified as auditory or visual learners on the basis of discrepancies in individual test profiles. Four controlled instructional procedures were presented in classroom settings. Two procedures were primarily auditory, and two primarily visual. The 5 percent of the subjects showing greatest preference for visual tests performed equally well on visual and auditory learning tasks. Auditory learners performed equally well on auditory and visual tasks.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Niccolò Pescetelli ◽  
Alex Rutherford ◽  
Iyad Rahwan

AbstractMany modern interactions happen in a digital space, where automated recommendations and homophily can shape the composition of groups interacting together and the knowledge that groups are able to tap into when operating online. Digital interactions are also characterized by different scales, from small interest groups to large online communities. Here, we manipulate the composition of groups based on a large multi-trait profiling space (including demographic, professional, psychological and relational variables) to explore the causal link between group composition and performance as a function of group size. We asked volunteers to search news online under time pressure and measured individual and group performance in forecasting real geo-political events. Our manipulation affected the correlation of forecasts made by people after online searches. Group composition interacted with group size so that composite diversity benefited individual and group performance proportionally to group size. Aggregating opinions of modular crowds composed of small independent groups achieved better forecasts than aggregating a similar number of forecasts from non-modular ones. Finally, we show differences existing among groups in terms of disagreement, speed of convergence to consensus forecasts and within-group variability in performance. The present work sheds light on the mechanisms underlying effective online information gathering in digital environments.


2020 ◽  
Vol 30 (3) ◽  
pp. 845-868 ◽  
Author(s):  
Ruqin Ren ◽  
Bei Yan ◽  
Lian Jian

Purpose The purpose of this paper is to examine how communication practices influence individuals’ team assembly and performance in open innovation contests. Design/methodology/approach This study analyzed behavioral trace data of 4,651 teams and 19,317 participants from a leading open innovation platform, Kaggle. The analyses applied weighted least squares regression and weighted mediation analysis. Findings Sharing online profiles positively relates to a person’s performance and likelihood of becoming a leader in open innovation teams. Team assembly effectiveness (one’s ability to team up with high-performing teammates) mediates the relationship between online profile sharing and performance. Moreover, sharing personal websites has a stronger positive effect on performance and likelihood of becoming a team leader, compared to sharing links to professional social networking sites (e.g. LinkedIn). Research limitations/implications As team collaboration becomes increasingly common in open innovation, participants’ sharing of their online profiles becomes an important variable predicting their success. This study extends prior research on virtual team collaboration by highlighting the role of communication practices that occur in the team pre-assembly stage, as an antecedent of team assembly. It also addresses a long-standing debate about the credibility of information online by showing that a narrative-based online profile format (e.g. a personal website) can be more powerful than a standardized format (e.g. LinkedIn). Practical implications Open innovation organizers should encourage online profile sharing among participants to facilitate effective team assembly in order to improve innovation outcomes. Originality/value The current study highlights the importance of team assembly in open innovation, especially the role of sharing online profiles in this process. It connects two areas of research that are previously distant, one on team assembly and one on online profile sharing. It also adds new empirical evidence to the discussion about online information credibility.


2020 ◽  
Author(s):  
Siyu Tian ◽  
Hangqi Liu ◽  
Huibing Tan

In most cases, cantata(康塔塔) is not a common repertoire for Chinese community chorus. It is still a big challenge for the Chinese University Amateur Choir to perform Cantata for cultural and music education. As a large vocal composition, it is also confused with other musical contexts, such as song cycle, for some Chinese. 2016 is the 80th anniversary of the Long March. To commemorate the victory of the Long March, our school's "Angel Choir" successfully performed "Long March Cantata ". Many post-90s college students, including members of the troupe, have never been heard to this work. Two piano version was chosen. As the piano accompaniments, conductor and soloist participating in this performance, we sum up the experience of the rehearsal process and performance. This chorus ensemble is an art elective course of our university. Some of the members never have music training. Many choir members cannot read music notes at very beginning. After one year of rehearsal, most of the choir members greatly improved their sight music reading. In view of the fact that Chinese audiences may have some inconsistent concepts about the subject of chorus. Even many professional music teachers and artists are confused the song cycle(声乐套曲) with oratorio (清唱剧) and cantata. This article also discusses the subject matter form of "Long March Cantata" based on literatures, online information and some monographs in English.


Author(s):  
H. M. Thieringer

It has repeatedly been show that with conventional electron microscopes very fine electron probes can be produced, therefore allowing various micro-techniques such as micro recording, X-ray microanalysis and convergent beam diffraction. In this paper the function and performance of an SIEMENS ELMISKOP 101 used as a scanning transmission microscope (STEM) is described. This mode of operation has some advantages over the conventional transmission microscopy (CTEM) especially for the observation of thick specimen, in spite of somewhat longer image recording times.Fig.1 shows schematically the ray path and the additional electronics of an ELMISKOP 101 working as a STEM. With a point-cathode, and using condensor I and the objective lens as a demagnifying system, an electron probe with a half-width ob about 25 Å and a typical current of 5.10-11 amp at 100 kV can be obtained in the back focal plane of the objective lens.


Author(s):  
Huang Min ◽  
P.S. Flora ◽  
C.J. Harland ◽  
J.A. Venables

A cylindrical mirror analyser (CMA) has been built with a parallel recording detection system. It is being used for angular resolved electron spectroscopy (ARES) within a SEM. The CMA has been optimised for imaging applications; the inner cylinder contains a magnetically focused and scanned, 30kV, SEM electron-optical column. The CMA has a large inner radius (50.8mm) and a large collection solid angle (Ω > 1sterad). An energy resolution (ΔE/E) of 1-2% has been achieved. The design and performance of the combination SEM/CMA instrument has been described previously and the CMA and detector system has been used for low voltage electron spectroscopy. Here we discuss the use of the CMA for ARES and present some preliminary results.The CMA has been designed for an axis-to-ring focus and uses an annular type detector. This detector consists of a channel-plate/YAG/mirror assembly which is optically coupled to either a photomultiplier for spectroscopy or a TV camera for parallel detection.


Author(s):  
Joe A. Mascorro ◽  
Gerald S. Kirby

Embedding media based upon an epoxy resin of choice and the acid anhydrides dodecenyl succinic anhydride (DDSA), nadic methyl anhydride (NMA), and catalyzed by the tertiary amine 2,4,6-Tri(dimethylaminomethyl) phenol (DMP-30) are widely used in biological electron microscopy. These media possess a viscosity character that can impair tissue infiltration, particularly if original Epon 812 is utilized as the base resin. Other resins that are considerably less viscous than Epon 812 now are available as replacements. Likewise, nonenyl succinic anhydride (NSA) and dimethylaminoethanol (DMAE) are more fluid than their counterparts DDSA and DMP- 30 commonly used in earlier formulations. This work utilizes novel epoxy and anhydride combinations in order to produce embedding media with desirable flow rate and viscosity parameters that, in turn, would allow the medium to optimally infiltrate tissues. Specifically, embeding media based on EmBed 812 or LX 112 with NSA (in place of DDSA) and DMAE (replacing DMP-30), with NMA remaining constant, are formulated and offered as alternatives for routine biological work.Individual epoxy resins (Table I) or complete embedding media (Tables II-III) were tested for flow rate and viscosity. The novel media were further examined for their ability to infilftrate tissues, polymerize, sectioning and staining character, as well as strength and stability to the electron beam and column vacuum. For physical comparisons, a volume (9 ml) of either resin or media was aspirated into a capillary viscocimeter oriented vertically. The material was then allowed to flow out freely under the influence of gravity and the flow time necessary for the volume to exit was recored (Col B,C; Tables). In addition, the volume flow rate (ml flowing/second; Col D, Tables) was measured. Viscosity (n) could then be determined by using the Hagen-Poiseville relation for laminar flow, n = c.p/Q, where c = a geometric constant from an instrument calibration with water, p = mass density, and Q = volume flow rate. Mass weight and density of the materials were determined as well (Col F,G; Tables). Infiltration schedules utilized were short (1/2 hr 1:1, 3 hrs full resin), intermediate (1/2 hr 1:1, 6 hrs full resin) , or long (1/2 hr 1:1, 6 hrs full resin) in total time. Polymerization schedules ranging from 15 hrs (overnight) through 24, 36, or 48 hrs were tested. Sections demonstrating gold interference colors were collected on unsupported 200- 300 mesh grids and stained sequentially with uranyl acetate and lead citrate.


Author(s):  
D. E. Newbury ◽  
R. D. Leapman

Trace constituents, which can be very loosely defined as those present at concentration levels below 1 percent, often exert influence on structure, properties, and performance far greater than what might be estimated from their proportion alone. Defining the role of trace constituents in the microstructure, or indeed even determining their location, makes great demands on the available array of microanalytical tools. These demands become increasingly more challenging as the dimensions of the volume element to be probed become smaller. For example, a cubic volume element of silicon with an edge dimension of 1 micrometer contains approximately 5×1010 atoms. High performance secondary ion mass spectrometry (SIMS) can be used to measure trace constituents to levels of hundreds of parts per billion from such a volume element (e. g., detection of at least 100 atoms to give 10% reproducibility with an overall detection efficiency of 1%, considering ionization, transmission, and counting).


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