Miracle-dz/UniFAR-FTUs huggingface dataset:
Analysis of propagation models at 2.1 GHz for simulation of a live 3G cellular network

Propagation models play a vital role in the characterization, development, and design of wireless mobile communications networks. Propagation path-loss models may give varying results if they are utilized in a different environment than the one they were formulated for. This paper studies path loss and propagation models using deployed 3G network operating at a frequency of 2.125 GHz. The study is conducted in Amman, Jordan, which provides a unique and different construction material. Measurements are collected of received signal using two cell sites. The collected measurements are then compared to different propagation models including: Log-distance, COST-231-Hata, COST-231-Walfisch-Ikegami, and Ericsson. An appropriate tuned propagation model in ASSET3G was used to predict signal coverage of a deployed base station for comparison and verification.
Web-Based Cognitive Writing Instruction (WeCWI): A Theoretical-and-Pedagogical e-Framework for Language Development

 Abstract — Web-based Cognitive Writing Instruction (WeCWI)’s contribution towards language development can be divided into linguistic and non-linguistic perspectives. In linguistic perspective, WeCWI focuses on the literacy and language discoveries, while the cognitive and psychological discoveries are the hubs in non-linguistic perspective. In linguistic perspective, WeCWI draws attention to free reading and enterprises, which are supported by the language acquisition theories. Besides, the adoption of process genre approach as a hybrid guided writing approach fosters literacy development. Literacy and language developments are interconnected in the communication process; hence, WeCWI encourages meaningful discussion based on the interactionist theory that involves input, negotiation, output, and interactional feedback. Rooted in the e-learning interaction-based model, WeCWI promotes online discussion via synchronous and asynchronous communications, which allows interactions happened among the learners, instructor, and digital content. In non-linguistic perspective, WeCWI highlights on the contribution of reading, discussion, and writing towards cognitive development. Based on the inquiry models, learners’ critical thinking is fostered during information exploration process through interaction and questioning. Lastly, to lower writing anxiety, WeCWI develops the instructional tool with supportive features to facilitate the writing process. To bring a positive user experience to the learner, WeCWI aims to create the instructional tool with different interface designs based on two different types of perceptual learning style.
Significance of the Expression of the CER6 Condensing Enzyme for Cuticular Wax Production in Arabidopsis1

To learn more about the role of the CER6 condensing enzyme in Arabidopsis surface wax production, we determinedCER6 transcription domains and the timing ofCER6 transcription in vegetative and reproductive structures from juvenile, mature, and senescing tissues. We found thatCER6 is highly transcribed throughout development, exclusively in the epidermal cells in all tissues examined. The only exception to the epidermal expression was observed in anthers nearing maturity, in which CER6 mRNA was localized in the tapetum. To determine if environmental factors such as light and water deficit, which are known to stimulate wax accumulation, induceCER6 transcription, we examined the effects of these factors on CER6 transcript abundance. Our results demonstrate that light is essential for CER6transcription, and that osmotic stress and the presence of abscisic acid enhance CER6 transcript accumulation.CER6 promoter-directed expression of the β-glucuronidase reporter gene in transgenic plants demonstrated that the CER6 promoter was highly effective in directing epidermis-specific expression in Arabidopsis and tobacco (Nicotiana tabacum). Furthermore, CER6promoter-driven CER6 overexpression resulted in increased wax deposition in Arabidopsis stems. These experiments indicate that the expression level of CER6 in the epidermis is one of the factors controlling wax accumulation on Arabidopsis stems.
A comparison of ultrastructural changes in rat liver due to chemical carcinogens.

Summary A wide range of nonspecific and reversible ultrastructural responses occur in liver cells following acute and chronic exposure to hepatocarcinogens. Although most changes do not occur to a uniform extent in all cells in acute and chronic experiments, nor do they persist indefinitely after withdrawal of the carcinogen, nucleolar abnormalities and disturbance in the ribosome-ergastoplasm relationship are the most consistent alterations in acute and chronic intervals and in the tumor cells themselves. None of the carcinogens used produced tumors with ultrastructural features sufficiently characteristic to distinguish them from those produced by other carcinogens. Despite the limitations of sampling and methods of electron microscopy, it would appear from a morphologic point of view that, following administration of hepatocarcinogens, nucleolar abnormalities at the level of synthesis and assembly of ribosomal precursors probably are equal in importance to changes in the ribosome-ergastoplasm complex in the cytoplasm.
Subtracting a best rank‐1 approximation from p × p × 2(p≥2) tensors

We introduce one special form of the ptimesp × 2 (p≥2) tensors by multilinear orthonormal transformations, and present some interesting properties of the special form. Through discussing on the special form, we provide a solution to one conjecture proposed by Stegeman and Comon in a conference paper (Proceedings of the EUSIPCO 2009 Conference, Glasgow, Scotland, 2009), and reveal an important conclusion about subtracting a best rank‐1 approximations from p × p × 2 tensors of the special form. All of these confirm that consecutively subtracting the best rank‐1 approximations may not lead to a best low rank approximation of a tensor. Numerical examples show the correctness of our theory. Copyright © 2011 John Wiley & Sons, Ltd.
Soluble and bound forms of GFRα1 elicit different GDNF‐independent neurite growth responses in primary sensory neurons

We have investigated the role of glial cell‐line derived neurotrophic factor (GDNF) and the effect of soluble or immobilized localization of its GDNF family receptor α1 (GFRα1) on neurite growth in cultured embryonic Bax−/− dorsal root ganglion neurons, which survive in the absence of trophic support. Whereas GDNF alone has a moderate effect on neurite growth, soluble and immobilized GFRα1 elicit opposing and GDNF‐independent effects on neurite growth by a phospholipase C (PLC) γ‐dependent mechanism. Thus, GFRα1 elicits nerve growth responses independent of GDNF. However, GDNF in the presence of soluble or immobilized GFRα1 reverse the GDNF‐independent GFRα1 modulation of neurite growth. The different outcome of soluble and bound GFRα1 combined with our previous immunohistochemical data showing GFRα1‐protein in Schwann cells but not axons suggest terminal Schwann cells as a source of locally administered target‐derived GFRα1 and place this receptor in the path of axonal growth and guidance. Thus, target‐derived GFRα1 play opposing roles when presented alone and with GDNF and, therefore, can function as a nerve growth cue that both can promote and prevent growth in the developing peripheral nervous system. Developmental Dynamics 227:27–34, 2003 © 2003 Wiley‐Liss, Inc.
Look where you're going [robotic wheelchair]

We propose a robotic wheelchair that observes the user and the environment. It can understand the user's intentions from his/her behaviors and the environmental information. It also observes the user when he/she is off the wheelchair, recognizing the user's commands indicated by hand gestures. Experimental results show our approach to be promising. Although the current system uses face direction, for people who find it difficult to move their faces, it can be modified to use the movements of the mouth, eyes, or any other body parts that they can move. Since such movements are generally noisy, the integration of observing the user and the environment will be effective in understanding the real intentions of the user and will be a useful technique for better human interfaces.
Low-dose excimer 308-nm laser for treatment of lichen planopilaris.

L ichen planopilaris (LPP) is a difficult-to-treat, chronic, inflammatory autoimmune disease targeting the hair follicle that eventually leads to permanent irreversible scarring alopecia. It commonly affects adult women on the central scalp with multifocal patches, perifollicular erythema, hyperkeratosis, and subjective complaints like pruritus or pain. Recently, a deficiency of the peroxisome proliferatoractivated receptor (PPAR) and disturbed lipid metabolism in the pilosebaceous unit were identified in LPP, with subsequent lymphocyte recruitment and upregulated cytokine expression provoking loss of adhesion of follicular keratinocytes. Based on this finding, treatment with the PPAR agonist pioglitazone was successfully tried in some cases, in addition to other current treatment options such as intralesional steroids, doxycycline, hydroxychloroquine, mycophenolate mofetil. For chronic inflammation, we hypothesized that UV-B excimer laser treatment might also be effective in LPP, since it has proven beneficial for certain inflammatory skin disorders that are mediated by lymphocytes and are responsive to psoralen plus UV-A therapy.
Study on the Implementation Evaluation of Urban Construction Boundary in Land Use Planning——A Case Study of Hangzhou

Urban sprawl is a world phenomenon.In China,with rapid development of urbanization,the characteristics of urban sprawl are increasingly conspicuous,such as low density,higher land consumption,scattered development,leapfrog development,strip development and so on.To solve these problems and utilize land resource rationally,there is a tradition of managing urban growth through land use regulation tools,especially land use planning.It is quite similar to the policy named "growth management"adopted by western countries,both of which are system arrangement to control urban sprawl through location,scale and time.At present,policy evaluation on land use planning in our country only focused on the comparison between planned indices from beginning to end,lacking sense of space.Combining with literature review,the method of "boundary evaluation" was introduced.Based on the remote sensing(RS) and geographic information system(GIS) analysis of the Landsat 5 thematic mapper(TM) satellite images of 1996 and 2005,this research examined the control effectiveness of UCB(Urban Construction Boundary). Three indicators on boundary control were proposed,including the effectiveness of boundary containment,land inventory sufficiency and illegal adjacent development to the UCB.The results showed that: 1) the UCB was so limited in guiding urban growth that most newly developed occurred outside.Moreover,the scale of newly developed land outside UCB is 33.9 km2 and that inside UCB is 29.1 km2;2) much new growth occurred near the boundary.In details,a total of 66.3 km long UCB emerged at the edge-type land development,accounting for a total length(239.3 km) of 28%;and 3) the area encompassed by the UCB might not be designed large enough to accommodate new development.The frustration of the urban growth control through the UCB mainly resulted from the lack of a transparent system for urban land use planning and control to provide sufficient information,the limitation of the traditional land use prediction method to consider contingencies,and the absence of a mechanism to monitor and adjust the UCB to respond just in time to urban change.In the future,there is still much room for improvement.
Essays on International Risk-Return Trade-Off Relations

ESSAYS ON INTERNATIONAL RISK-RETURN TRADE-OFF RELATIONS Liang Meng Old Dominion University, 2015 Director: Dr. Licheng Sun This dissertation consists of two essays on the international risk-return trade-off relations. The first essay is titled “The Role of the US Market on International Risk-Return Trade-Off Relations” and the second essay is titled “The Role of Investor Sentiment on International RiskReturn Trade-Off Relations”. In our first essay, we study the intertemporal risk-return trade-off relations based on returns from eighteen international markets. Our main contribution is that we find that the US market plays an important role in affecting international risk-return trade-off. We present striking new empirical evidence that the inclusion of US market variables significantly changes the estimated risk-return trade-off relationship in international markets. The estimated risk aversion coefficient switches from mostly negative to mostly positive after the inclusion of these US market variables even when the conditional variance model specification remains the same. Our results are consistent with the state variable interpretation of the US market variables in the sense of Merton’s Intertemporal CAPM. Our collective findings confirm and extend the recent literature that find an important role of US market return in predicting international stock returns. In our context of the risk-return trade-off relationship, we find that the contemporaneous state variables are more significant than the lagged ones, suggesting that the importance of US market variables are more likely driven by expected changes in the investment opportunity set rather than the slow diffusion of information. In our second essay, we investigate the role of domestic sentiment on the risk-return trade-off relation in the international markets context. We extend the study of Yu and Yuan (2011) by including sixteen international stock markets with longer sample period than prior international studies. Our main contribution is that we find the significant roles of the US market returns and the risk-free rates as we examine the local sentiment influence on the own country’s risk-return relation. Our main finding is that after accounting for these variables, we tend to identify a two-regime sentiment pattern in most of the international markets: a low sentiment regime and a high sentiment regime. In the low sentiment period during which sentiment traders have small impact, the risk-return relation is largely robust positive in many international markets. Meanwhile, in the high sentiment period with more noise traders involved in the market, this positive trade-off is undermined. We also find that to some extent, US sentiment spreads to other countries and co-exists with local sentiment. However, the US sentiment effect is less significant and influential than the home sentiment effect. Our findings suggest that, concerning the domestic risk-return trade-off, the local sentiment effect dominates and effectively subsumes the US sentiment effect. Members of Dissertation Committee: Dr. Mohammad Najand Dr. David Selover
Organizational capabilities and performance of manufacturing companies in developing economies

Abstract The purpose of this research is to investigate the relationship between organizational capabilities and manufacturing performance using multidimensional measure within the context of developing countries. The work is part of the ongoing research that has conducted in Nigeria. Data was collected from 313 selected Chief executives officers, managers and, owner-managers of manufacturing companies in Nigeria through structured questionnaires. The analysis was done using PLS-SEM version3.0 and the result show a positive effect for all the exogenous latent variables (marketing, research and development and, technological capabilities) on endogenous latent variable (organizational performance). This study contributes to the literature on the importance of competencies. It also serves as guides for managers to pursue policies that enhance organizational capabilities .
Assessment of the Wiimote as a Tangible User Interface for Interactive Virtual Environments

Complex architectural artifacts and industrial systems are increasingly being designed with the help of virtual prototypes. In these virtual environments users can interact with specific features of a simulation to evaluate functional aspects or learn complex operations before system construction or while unaccessible. A key issue for a virtual prototype-based design cycle is the possibility to easily interact with the simulated system to trigger specific functions regardless of the limited technical skills of the user. In this paper, the potential of the Nintendo Wiimote device programmed as a tangible interface to navigate and interact in virtual environments has been assessed in a user study involving multiple subjects. Results with basic 2D point-and-click and select-drag-and-drop tasks, as well as in 3D navigation and interaction scenarios, have shown the effectiveness and reliability of the Wiimote-based interaction. Moreover, the interface was perceived by the subjects as intuitive, not complicated, and requiring little mental effort.
Mechanism of Action of Biological Antioxidants

Abstract More and more diseases have been proposed to have a radical or oxidant involvement. Although in most cases we do not know if this involvement is a cause or a result of the disease process, it is still valuable to learn about those compounds or enzymes that might block, inhibit, or prevent radical-initiated reactions. Therefore, it becomes increasingly important to understand which compounds can function as antioxidants, where they are located in the body, and what their mechanism of action might be. As we increase our knowledge in these areas, we will have a better opportunity to propose interventions that might suppress or even reverse some of the ravages of oxidant-based diseases in humans.
Error‐tolerant EST database searches by tandem mass spectrometry and multiTag software

The MultiTag method (Sunyaev et al., Anal. Chem. 2003 15, 1307–1315) employs multiple error‐tolerant searches with peptide sequence tags (Mann and Wilm, Anal. Chem. 1994, 66, 4390–4399) for the identification of proteins from organisms with unsequenced genomes. Here we demonstrate that the error‐tolerant capabilities of MultiTag increased the number of peptide alignments and improved the confidence of identifications in an EST database. The MultiTag outperformed conventional database searching software that only utilizes stringent matching of tandem mass spectra to nucleotide sequences of ESTs.
Kirby language faculty and its evolution Cultural evolution : implications for understanding the human

References http://rstb.royalsocietypublishing. org/content/363/1509/3591.full. html#ref-list-1 This article cites 44 articles, 7 of which can be accessed free Rapid response http://rstb.royalsocietypublishing. org/letters/submit/royptb;363/1509/3591 Respond to this article Subject collections (2309 articles) evolution Articles on similar topics can be found in the following collections Email alerting service here right-hand corner of the article or click Receive free email alerts when new articles cite this article sign up in the box at the top
A 66fps 3 8mW nearest neighbor matching processor with hierarchical VQ algorithm for real-time object recognition

A 66 fps 38 mW nearest neighbor matching processor for real-time object recognition has been fabricated in 0.13 mum CMOS technology. It consists of RISC processing core, pre-fetch DMA, and two independent sets of logic merged memories. Based on hierarchical vector quantization (H-VQ) algorithm, implemented processor achieves 22.5X cycle time reduction in matching process without any accuracy loss in VQ operation. As a result, 66 fps frame rate is obtained for QVGA (320times240 pixels) video images with 5632-entry database.
The Role of Strategic Flexibility in The Associations between Management Control System Characteristics and Strategic Change

The research question addressed in this paper is this: what is the role of strategic flexibility as a product of MCS characteristics, an enabler of strategic change, and a mediating variable in the relationships between MCS characteristics and strategic change? This focus fills a gap in the literature which in the past has reported research primarily on the nexus between MCS characteristics and strategic change. Data are collected through a mail-based survey of strategic business units in Australian manufacturing organizations. The findings indicate that two MCS characteristics (the timeliness and interactive use of information) lead to strategic flexibility, that strategic flexibility leads to strategic change (operational change), and that strategic flexibility mediates the relationships between these particular MCS characteristics and strategic change. The study’s findings offer a more comprehensive theory of strategic management in dynamic environments, which contributes to the MCS–strategy literature and informs the practice of organizational management with reference to the resource-based view of the firm. In particular, the findings indicate to researchers in the MCS–strategy field that, although some MCS characteristics might lead directly to strategic change, greater attention should be paid to the role of strategic flexibility as a product of MCS characteristics, an enabler of strategic change, and a mediator in the relationships between certain MCS characteristics and strategic change. Keywords: Management Control Systems, Strategic Flexibility, Strategic Change To cite this document: Mark Srour, Kevin Baird, and Herb Schoch, "The Role of Strategic Flexibility in The Associations between Management Control System Characteristics and Strategic Change", Contemporary Management Research, Vol.12, No.3, pp. 371-406, 2016. Permanent link to this document: http://dx.doi. org/10.7903/cmr.13851
A time‐course transcriptional kinetics of the hypothalamic–pituitary–gonadal and hypothalamic–pituitary–adrenal axes in zebrafish eleutheroembryos after exposure to norgestrel

The objective of the present study was to investigate the effects of norgestrel on the hypothalamic–pituitary–gonadal (HPG) and hypothalamic–pituitary–adrenal (HPA) axes in zebrafish eleutheroembryos. Zebrafish embryos were exposed to different concentrations of norgestrel (0 ng L−1, 5 ng L−1, 50 ng L−1, and 100 ng L−1) for 144 h post fertilization (hpf), and the transcriptional profiles of the HPG and HPA axes were examined every day. Norgestrel modulated the expression of Pgr and Vtg1 messenger (m)RNAs mainly at 96 hpf for all treatment groups. In addition, norgestrel strongly altered the expression of Cyp11a1 mRNA above 5 ng L−1 (significant upregulation from 48 hpf to 120 hpf and significant downregulation for 144 hpf). Norgestrel treatment could significantly induce expression of Cyp19a1a, Cyp11b, Gnrh2, Gnrh3, and Lhb mRNAs but inhibit transcripts of Hsd11b2 and Crh genes above 5 ng L−1 at different time points. The transcriptional expression levels of Esr1, Ar, Star, Hsd17b3, Fshb, and Pomc were also mediated by 5 ng L−1 norgestrel or higher during different exposure periods. Taken together, the overall results imply that the transcriptional changes in zebrafish eleutheroembryos may pose a potential effect on embryonic development, in particular in the brain and gonadogenesis. Environ Toxicol Chem 2015;34:112–119. © 2014 SETAC
Low-Frequency Trading with High-Frequency Measures: Is it Profitable?

Are high-frequency realized measures profitable for low-frequency investment? I compare the profitability of the same investment strategy against two implementations of its trading signals: one that conventionally uses daily returns (LF) and the other that takes advantage of high-frequency (HF) returns. I use different lengths of the formation period to verify if the HF implementation can leverage the superior amount of observations. Although economic differences favour the HF implementation, the evidence is not statistically significant. Nonetheless, the HF implementation is more robust to the choice of parameters and provides, for the most illiquid stocks, strong economic benefits that are inversely increasing in the length of the formation period.