Miracle-dz/UniFAR-FTUs huggingface dataset:
Cloud Collaboration: Using Microsoft SharePoint as a Tool to Enhance Access Services

ABSTRACT Proper knowledge-base access and document storage has long been an issue for the Document Management Team (Access Services) at the Information and Library Services of University of Maryland University College. Team members researched SharePoint and decided it could be exploited as a combination of intranet and cloud computing technologies. SharePoint's features allow it to be a 1-stop location to manage information in a secure, efficient, remotely accessible, and consolidated manner. The team could then reduce redundancy and knowledge gaps by using the collaboration and communication features. This article will discuss the steps the team took to transition several previous avenues of document storage and knowledge base access into SharePoint, specifically in the case of creating a troubleshooting wiki for remote circulation locations.
Designing Digital Experiences for Positive Youth Development: From Playpen to Playground

Amidst the predominant societal focus on the risks and deficits of media in children’s lives, Marina Umaschi Bers unabashedly takes a different stance in Designing Digital Experiences for Positive Youth Development. She argues that, with the right design and implementation considerations, digital technology can be a powerful positive force in the lives of children and adolescents. The goal of her theoretical and practical work, in fact, is to use and help others learn to “use technology to help children learn new things to become better people and make a better world” (p. 5). A lofty goal to be sure, but one that is also refreshing and critical given the ever-growing presence of digital media in the lives of youth. Full of descriptive metaphors and illustrative vignettes, Designing Digital Experiences for Positive Youth Development is written in an accessible and engaging style and contains something for everyone interested in child development and digital media. In fact, potential readers should not be fooled or deterred by the presence of “design” in the title. Bers emphasizes the digital experience over the nuts and bolts of building technological tools or producingmedia content. As such, one need not be amedia producer or technology developer to benefit from this book. Rather, its content is comprehensible and valuable formany, and can help guide designers, researchers, practitioners, and parents alike in creating and promoting positive digital experiences for children and adolescents. Designing Digital Experiences for Positive Youth Development provides particularly strong and digestible descriptions of the roots, tenets, and implications of constructionism, and Bers’ commentary and examples are likely to convince even the most stubborn skeptic of the power of learning by creating. In the introduction of the book, Bers presents and explains her guiding theoretical framework, the Positive Technological Development model (PTD). Derived from various research traditions—among them constructionism, computer-supported collaborative learning, and applied developmental science, as well as her own research experiences at the MIT Media Lab and the Department of Child Development at Tufts, the PTD model maps the intersections of how the child, technology, and practice contribute to digital experiences. Developmentally beneficial digital experiences are most likely to occur, she contends, when the “6 c’s” of individual child assets (competence, confidence, character, caring, connection, and contribution) align with the “6 c’s” of technology-mediated behaviors (content creation, creativity, choices of conduct, communication, collaboration, and community building) in carefully considered contexts of practice appropriate for youth of a particular developmental stage. The bulk of thebook consists of threemain parts. In the three chapters of PartOne, Bers describes a central developmental task or “conflict” of early childhood, middle childhood,
Research on the Search Scheme for Rare Items in Unstructured P2P Networks

Search method is the key technique in unstructured P2P systems. The existing search methods are efficient for locating popular items, but not so for locating rare items. Therefore increasing the search efficiency for rare items would improve the network availability and user experience. In this paper, we propose a novel search scheme for rare items. First, we present a data structure of TDBF for counting the files' local popularities by using Bloom Filter data compressing technique. Second, a replication strategy and a dynamic search strategy for rare items are proposed, which could make fully use of the heterogeneity of the P2P networks and also take the load balance into account. We conduct comprehensive simulations to evaluate the algorithm. The simulation results show that our approach could significantly improve the search quality of the rare items as well as reduce system traffic overhead. Index Terms - P2P, rare item, replica, Bloom Filter
Implications of Student and Lecturer Qualitative Views on Reading Lists: A Case Study at Loughborough University, UK

This case study explores student and lecturer views of reading lists at Loughborough University. Taking the qualitative data from two surveys previously undertaken at the institution, it uses the grounded theory approach to identify key issues regarding the purpose, importance, visibility, content, currency, and length of reading lists, as well as the availability of material on the lists. It highlights student concerns about the currency of some reading lists and discusses the need for greater advocacy of the lists to lecturers. It concludes with the need to develop a formal reading strategy for the institution.
A model conditional processor to assess predictive uncertainty in flood forecasting

Abstract This paper briefly discusses the nature, the causes and the role of predictive uncertainty in flood forecasting and proposes a novel approach to its estimation. Following the definition of predictive uncertainty, its importance in the decision process is highlighted in relation to the different sources of errors (model, parameter, observations, boundary conditions) that affect flood forecasting. Moreover, the paper briefly analyses the importance of using a full predictive uncertainty, obtained by marginalising the parameter uncertainty, instead of the predictive uncertainty conditional to a single parameter set. Finally, a new Model Conditional Processor (MCP) for the assessment of predictive uncertainty is then proposed as an alternative to the Hydrologic Uncertainty Processor (HUP) introduced by Krzysztofowicz as well as to the Bayesian Model Averaging (BMA) approach due to Raftery et al. The new MCP approach, which aims at assessing, and possibly reducing, predictive uncertainty, allows combination of the observations with one or several models’ forecasts in a multi‐Normal space, by transforming observations and model forecasts in a multivariate Normal space by means of the Normal Quantile Transform. The results of the new approach are shown for the case of the River Po in Italy, and compared with the results obtainable both with the HUP and the BMA.
Estrs y burnout en profesores

A method, apparatus, and article of manufacture for performing data mining applications in a massively parallel relational database management system. A scalable data mining function comprising an automated, adaptive, histogram bin data description assist function is instantiated and parameterized via an analytic application programming interface (API). The automated, adaptive, histogram bin data description assist function comprises a query that is performed directly within the relational database management system, wherein the automated, adaptive, histogram bin data description assist function counts a number of occurrences of values in value ranges for a numeric data element in a column of a table stored in the relational database.
Development and Effectiveness of a Computer-aided Pattern Design Tutorial

The purposes of the study were to develop and evaluate a computer-aided pattern design tutorial and to survey student attitudes toward computer technology and CAD systems. A tutorial developed by the researchers was based on a software package currently being used by industry. Student attitudes toward computer technology and CAD systems were examined with a Likert-type attitude scale. Students received instruction in traditional (manual) flat pattern design methods, completed dart manipulation exercises (pretest), and then completed the same exercises using the CAD system (posttest). The attitude scale was administered before and after using the CAD system. The tutorial was as effective an instructional tool as traditional methods of teaching pattern design. There were no significant differences in student attitudes before and after completing the tutorial. Many students were computer-literate prior to the study and had already developed positive attitudes toward technology and CAD systems. Future plans include refinement and expansion of the tutorial.
QM/MM Study of Static and Dynamic Energetic Disorder in the Emission Layer of an Organic Light-Emitting Diode

Static and dynamic energetic disorder in emission layers of organic light-emitting diodes (OLEDs) is investigated through combined molecular dynamics and hybrid quantum mechanics/molecular mechanics (QM/MM) calculations. The analysis is based on a comparison of ensemble and time distributions of site energies of guest and host components in an emission layer. The law of total variance is applied to decompose the total disorder into its static and dynamic contributions. It is found that both contributions are of the same order of magnitude. While the dynamic disorder is not affected by intermolecular interactions, the static disorder for both guests and hosts is determined by the polarity of host molecules. The amount of static disorder affects charge-transport properties and exciton formation pathways, which consequently influence the overall efficiency of an OLED device. The simulations indicate that the amount of static disorder induced by the host should be considered for the optimization of the emissi.
Identifying the Resource and Service Needs of Graduate and Professional Students

The library profession has a vested interest in the retention and information literacy of graduate and professional students. Recent research highlights the need for the overall study of graduate student use of the library and of those services and resources geared toward that population. A University of Iowa Libraries' user needs assessment survey of a random sample of graduate and professional students revealed that although graduate and professional students come to the library to do research or to use other library resources, fewer come to study or borrow books. Graduate and professional students recognize the need for more assistance in using the library and would like more opportunities for library instruction. They prefer human contact. Even though they are satisfied with the resources and quality of staff assistance, they would like to find more material on the shelves when they need them. In addition, many of them are unaware of the range of library services available to them. One of the key strategic goals of the University of Iowa is the maintenance and support of premier graduate and professional programs. Among 131 public research universities recently ranked in Hugh Davis Graham's and Nancy Diamond's 1997 book The Rise of the American Research Universities, the University of Iowa ranked among the top 20 based on the quantity and quality of research performance (1997). As one of only two public research universities in the state of Iowa, the University of Iowa has a special role in graduate and professional education. In the knowledge-intensive world of the future, graduate and professional education play a central role, and given the limited opportunities for such education within the state of Iowa, this part of the University of Iowa's mission will increase in importance over time.
100‐MHz CMOS circuits directly fabricated on plastic using sequential laterally solidified silicon

Abstract— CMOS TFT circuits were fabricated on plastic using sequential laterally solidified silicon combined with a low‐temperature CMOS process. The unity‐gain frequencies of the best of NMOS TFTs are greater than 250 MHz, and the CMOS ring oscillators operate at 100 MHz. To the best of the authors' knowledge, these are the highest‐frequency circuits ever fabricated directly on plastic. This high‐performance CMOS‐on‐plastic process can be applied to the fabrication of AMLCD integrated drivers and AMOLED pixels on plastic substrates.
The Conference in Pedestrian and Evacuation Dynamics 2014 (PED2014) Experimental study on pedestrian flow through wide bottleneck

A series of well-controlled laboratory experiments with up to 350 test persons were performed to investigate the pedestrian flow through wide bottlenecks. The density and velocity inside the bottleneck do not depend on the bottleneck width, while those in front of the bottleneck change with the width. A linear dependency is found between the flow and bottleneck width (up to 5 m) by comparing our results with the data from literature. However, differences appear only if the data from steady states are used. These differences indicate the effects of other factors like bottleneck length et al. on the flow. c
Spatial and seasonal variations of aerosols over China from two decades of multi-satellite observations – Part 1: ATSR (1995–2011) and MODIS C6.1 (2000–2017)

Abstract. Aerosol optical depth (AOD) patterns and interannual and seasonal variations over China are discussed based on the AOD retrieved from the Along-Track Scanning Radiometer (ATSR-2, 1995–2002), the Advanced ATSR (AATSR, 2002–2012) (together ATSR) and the MODerate resolution Imaging Spectroradiometer (MODIS) aboard the Terra satellite (2000–2017). The AOD products used were the ATSR Dual View (ADV) v2.31 AOD and the MODIS/Terra Collection 6.1 (C6.1) merged dark target (DT) and deep blue (DB) AOD product. Together these datasets provide an AOD time series for 23 years, from 1995 to 2017. The difference between the AOD values retrieved from ATSR-2 and AATSR is small, as shown by pixel-by-pixel and monthly aggregate comparisons as well as validation results. This allows for the combination of the ATSR-2 and AATSR AOD time series into one dataset without offset correction. ADV and MODIS AOD validation results show similar high correlations with the Aerosol Robotic Network (AERONET) AOD (0.88 and 0.92, respectively), while the corresponding bias is positive for MODIS (0.06) and negative for ADV (−0.07). Validation of the AOD products in similar conditions, when ATSR and MODIS/Terra overpasses are within 90 min of each other and when both ADV and MODIS retrieve AOD around AERONET locations, show that ADV performs better than MODIS in autumn, while MODIS performs slightly better in spring and summer. In winter, both ADV and MODIS underestimate the AERONET AOD. Similar AOD patterns are observed by ADV and MODIS in annual and seasonal aggregates as well as in time series. ADV–MODIS difference maps show that MODIS AOD is generally higher than that from ADV. Both ADV and MODIS show similar seasonal AOD behavior. The AOD maxima shift from spring in the south to summer along the eastern coast further north. The agreement between sensors regarding year-to-year AOD changes is quite good. During the period from 1995 to 2006 AOD increased in the southeast (SE) of China. Between 2006 and 2011 AOD did not change much, showing minor minima in 2008–2009. From 2011 onward AOD decreased in the SE of China. Similar patterns exist in year-to-year ADV and MODIS annual AOD tendencies in the overlapping period. However, regional differences between the ATSR and MODIS AODs are quite large. The consistency between ATSR and MODIS with regards to the AOD tendencies in the overlapping period is rather strong in summer, autumn and overall for the yearly average; however, in winter and spring, when there is a difference in coverage between the two instruments, the agreement between ATSR and MODIS is lower. AOD tendencies in China during the 1995–2017 period will be discussed in more detail in Part 2 (a following paper: Sogacheva et al., 2018), where a method to combine AOD time series from ADV and MODIS is introduced, and combined AOD time series are analyzed.
The Response of the Hydrodynamic Model to Heat Conduction, Mobility, and Relaxation Expressions

We study simulations of then+-n-n+ diode, by means of higher moment models, derived from the Boltzmann equation. We emply such realistic assumptions as energy dependent mobility functions, with doping dependent low field mobility. It is known that a critical role is played in the hydrodynamic model by the heat conduction term. When the standard choice of the Wiedemann-Franz law is made for the conductivity, and constant low field mobility values are used, spurious overshoot is observed. Agreement with Monte-Carlo simulation in this regime has in the past been achieved by empirical modification of this law. In this paper, we consider the effect of representing the heat flux by the sum of two terms. It is found that the effect is negligible with respect to overshoot in comparison to that achieved by employing a doping dependent low field mobility. We also compare the hydrodynamic model to recently introduced energy transport models. Finally, in low temperature regimes, we study the dependence of shock formation on the momentum relaxation time representations and on the heat conduction term. The algorithms employed for both models are the essentially nonoscillatory (ENO) shock capturing algorithms.
Influences of alternate partial root-zone irrigation and urea rate on water- and nitrogen-use efficiencies in tomato

Traditional water and fertilizer inputs are often much higher than the actual demands of tomato, which causes a reduction in water- and fertilizer-use efficiencies. To investigate the advantage of alternate partial root-zone irrigation (AI) on water- and nitrogen (N)-use efficiencies of tomato modified by water and N management, taking conventional irrigation (CI) as the control, the effects of AI on root morphology and activity, fruit yield and water and N use efficiency were studied using pot experiments. There were four combinations of irrigation levels and growing stages of tomato for AI, i.e. AI1 (high water (WH) from blooming to harvest stage (BHS)), AI2 (WH from blooming to fruit setting stage (BFS) and low water (WL) at the harvest stage (HS)), AI3 (WL at BFS and WH at HS) and AI4 (WL at BHS) at three urea rates, i.e. low urea rate (NL), middle urea rate (NM) and high urea rate (NH) in the form of urea. Irrigation quotas for WH and WL in AI at BFS or HS were 80% and 60% of that in CI, respectively. Compared to CI, AI decreased water consumption by 16.0%-33.1% and increased water use efficiency of yield (WUEy) and dry mass (WUEd) by 6.7%-11.9% and 10.2%-15.9%, respectively. AI1 did not decline yield, total N uptake (TNU) and N use efficiency (NUE) significantly. Compared to NL, NM enhanced tomato yield, TNU, WUEy and WUEd by 28.5%, 35.3%, 22.6% and 16.3%, respectively. Compared to CINL, AI1NM reduced water consumption by 12.5%, but increased tomato yield, TNU, WUEy and WUEd by 35.5%, 58.4%, 54.4% and 53.7%, respectively. Therefore, AI1 can improve water use efficiency and total N uptake of tomato simultaneously at medium urea rate. Keywords: alternate partial root-zone irrigation, nitrogen level, nitrogen uptake, tomato, water use efficiency, yield DOI: 10.25165/j.ijabe. 20171006.2541 Citation: Liu X G, Li F S, Zhang F C, Cai H J, Yang Q L. Influences of alternate partial root-zone irrigation and urea rates on water- and nitrogen-use efficiencies in tomato. Int J Agric & Biol Eng, 2017; 10(6): 94–102.
Finite Population CSMA/CD Networks

A continuous time Markov chain model of a nonpersistent carrier sense multiple access with collision detection (CSMA/CD) protocol is developed to determine the performance of finite population systems. The model allows a wide range of distributions for the length of packets and the lengths of the transmission detection and collision detection times. A stability measure for finite population asynchronous systems-the instantaneous expected drift-is developed. Performance calculations for many sample systems show that the following behavior is characteristic of these systems: a wide range of retransmission rates provides almost optimal performance; the instantaneous drift is a sensitive indicator of the stability characteristics of CSMA/CD networks; if high fixed retransmission rates are used, performance decays very rapidly when other network parameters cross critical thresholds. In addition, adaptive retransmission policies and the maximum length of a CSMA/CD cable network are found to be very sensitive to the distribution of the transmission detection time.
A Mobile NMR Device for Measurements of Porosity and Pore Size Distributions of Drilled Core Samples

A new mobile NMR scanner has been designed with a Halbach magnet for measurements of porosity and pore-size distributions of water-saturated cylindrical geological cores with diameters up to 60 mm. It is light (∼8 kg) and has a sufficiently homogeneous magnetic field in a large and accessible cylindrical volume. Practical aspects of the sensor construction are described. First experimental results obtained with the mobile Halbach sensor are reported in an attempt to measure porosity and pore-size distributions in geological drilled cores. Compared to the NMR-MOUSE®, the Halbach tool is more sensitive, and porosities can be determined down to 3%. The scanner is a laboratory prototype of a future tool for measuring porosity and pore-size distributions of standard-size cores drilled from the ocean floor. The tool is particularly attractive for use on research vessels and on logging platforms. © 2004 Wiley Periodicals, Inc. Concepts Magn Reson Part B (Magn Reson Engineering) 23B: 26–32, 2004.
Measurement of b hadron lifetimes in pp collisions at √s = 8 TeV

Measurements are presented of the lifetimes of the B^0, B^0_ s, Λ^0_b, and B+_c hadrons using the decay channels B^0→J/ψK∗(892)^0, B^0→J/ψK^0_S, B^0_s→J/ψπ^+π^−, B^0_s→J/ψϕ(1020), Λ^0_b→J/ψΛ^0, and B+_c→J/ψπ^+. The data sample, corresponding to an integrated luminosity of 19.7fb^(-1), was collected by the CMS detector at the LHC in proton–proton collisions at √s = 8 TeV. The B^0 lifetime is measured to be 453.0 ± 1.6(stat) ± 1.8(syst) μ m in J/ψK∗(892)^0 and 457.8 ± 2.7(stat) ± 2.8(syst) μ m in J/ψK^0_S, which results in a combined measurement of cτ_(B^0) = 454.1 ± 1.4(stat) ± 1.7(syst) μ m. The effective lifetime of the B^0_s meson is measured in two decay modes, with contributions from different amounts of the heavy and light eigenstates. This results in two different measured lifetimes: cτ_(B^0_s) → J/ψπ^+π^− = 502.7 ± 10.2(stat) ± 3.4(syst) μ m and cτ_(B^0_s) → J/ψϕ(1020) = 443.9 ± 2.0(stat) ± 1.5(syst) μ m. The Λ^0_b lifetime is found to be 442.9 ± 8.2(stat) ± 2.8(syst) μ m. The precision from each of these channels is as good as or better than previous measurements. The B+_c lifetime, measured with respect to the B+B+ to reduce the systematic uncertainty, is 162.3 ± 7.8(stat) ± 4.2(syst) ± 0.1(τ_(B+)) μ m. All results are in agreement with current world-average values.
GaAs Schottky diodes for THz mixing applications

The operation of GaAs Schottky barrier diodes, the critical mixer element used in heterodyne receivers for a variety of scientific applications in the terahertz frequency range, is reviewed. The constraints that the receiver system places on the diodes are considered, and the fundamental guidelines for device optimization are presented. The status of ongoing research, both experimental and theoretical, is examined. Emphasis is placed on investigations of the various effects that can limit diode performance at these high frequencies. Investigations of planar diode technology are summarized, and the potential replacement of whisker-contacted devices with planar structures is considered. >