Miracle-dz/UniFAR-FTUs huggingface dataset:
SEMIPOLAR GALLIUM NITRIDE ON SILICON: TECHNOLOGY AND PROPERTIES

This review represents the last achievements in synthesis of epitaxial layers of gallium nitride (GaN) on silicon (Si) substrate. The basic physical, crystallography and physical-chemical properties of semipolar gallium nitride are described. The possible use of semipolar gallium nitride in production of devices for opto- and microelectronics is discussed. The methods of synthesis of semipolar GaN layers are considered with an emphasis on their advantages and drawbacks. Considerable attention is given to the original method of synthesis of semipolar GaN on planar Si(100), Si(210) substrates with interlayers of SiC and AlN. It is based upon the synthe- sis of thin SiC-layers on the surface Si(100) or Si(210) using the new method of atom substitu- tion. Such an approach makes possible the epitaxial layers of the semipolar GaN to be synthe- f? mXWbag(XI? fhUfgeTgXj? g(WXYBXVg? babYg(XBTlXeYebCg(XI? (''�cBTaXUlTaTaZBXq,,}TaW with a half-width of the X-ray diffraction rocking curve of GaN(1-101) of the order  0 ~20'.
Survey on Flight Control Technology for Large-Scale Helicopter

A literature review of flight control technology is presented for large-scale helicopter. Challenges of large-scale helicopter flight control system (FCS) design are illustrated. Following this, various flight control methodologies are described with respect to their engineering implementation and theoretical developments, whose advantages and disadvantages are also analyzed. Then, the challenging research issues on flight control technology are identified, and future directions are highlighted.
Linkage-Based Distance Metric in the Search Space of Genetic Algorithms

We propose a new distance metric, based on the linkage of genes, in the search space of genetic algorithms. This second-order distance measure is derived from the gene interaction graph and first-order distance, which is a natural distance in chromosomal spaces. We show that the proposed measure forms a metric space and can be computed efficiently. As an example application, we demonstrate how this measure can be used to estimate the extent to which gene rearrangement improves the performance of genetic algorithms.
The economics of early childhood care and education : technical research paper for the National Economic and Social Forum

Title The economics of early childhood care and education : technical research paper for the National Economic and Social Forum Authors(s) Harmon, Colm; Finn, Claire; Chevalier, Arnaud; Viitanen, Tarja Publication date 2006-01 Publisher National Economic and Social Forum Link to online version http://www.nesf. ie/dynamic/docs/Technical%20Paper.pdf Item record/more information http://hdl.handle. net/10197/671
Preliminary analysis reveals sediment burial decreases mass loss and increases survival of the aquatic invasive plant Hydrilla verticillata following desiccation over short time scales

Aquatic plants represent a key target in the management of biological invasions due to their ability to outcompete native species, interfere with human water use, and modify nutrient cycles. Studying desiccation tolerance of aquatic plants can improve understanding of their survival in habitats with fluctuating water levels, as well as response of invasive aquatic plants to management practices such as drawdowns. In a preliminary study, using Hydrilla verticillata as a case study, we desiccated plant fragments for 3 hours on top of sediment, buried beneath sediment, and in the absence of sediment in laboratory mesocosms to quantify the effects of sediment burial on survival and growth upon reintroduction to a common aquatic environment. In the absence of sediments, fragments experienced the greatest mass loss during desiccation and highest mortality rates upon reintroduction to the aquatic environment. Burial decreased plant fragment mass loss during desiccation, and upon return to a common aquatic environment, buried fragments demonstrated rates of new growth indistinguishable from undried control fragments. Overall, our results suggest that the presence of sediments can play an important role in the ability of aquatic plants to withstand desiccation stress at short time scales. Future studies should consider longer time scales and conditions most representative of field settings, as an understanding of sediments can inform management practices aimed at the control and eradication of hydrilla and other invaders.
Researcher Mobility and Innovation: The Effect of Researcher Mobility on Organizational R&D Performance in the Emerging Nations' Companies

This study applies a knowledge production function to an empirical analysis of the relationship between innovation and the movement of knowledge workers. In the past, investments in R&D and human resources were used as indices to measure innovation. However, this study analyzes the role that the movement of knowledge workers plays in innovation and the growth of the new corporations that recruited them from mature companies. This study reveals that the fluidity of talent and informal networks play an important role during the process of innovation. The analysis clearly shows that when innovation is measured by number of patents, the contribution of highly experienced and highly specialized researchers from developed countries is especially high. On the other hand, when innovation is measured by patent quality, both the number of researchers and the researchers’ years of experience clearly exhibit positive effects.
Short-term Wind Power Forecasting Using Advanced Statistical Methods

This paper describes some of the statistical methods considered in the ANEMOS project for short-termforecasting of wind power. The total procedure typically involves various steps, and all these steps are described in the paper. These steps include downscaling from reference MET forecasts to the actual wind farm, wind farm power curve models, dynamical models for prediction of wind power or wind speed, estimating the uncertainty of the wind power forecast, and finally, methods for upscaling are considered. The upscaling part considers how a total regional production can be estimated using a small number of reference wind farms. Keywords: Forecasting, power curve, wind farmpower curve, upscaling, uncertainty estimation, probabilistic forecasts, adaptation.
Nephron-sparing surgery in multiple renal cancer: a case report

BACKGROUND: In the last decade, nephron-sparing surgery has largely supplanted the radical approach for the treatment of small renal masses. More recently, ablative technologies have been discussed as alternative in patients that are not eligible for surgical approach. CASE SUMMARY: A 54-year-old Caucasian man was referred to our Urology Clinic for multiple renal masses. A computed tomography (CT) scan revealed three contrast-enhanced lesions located in the upper pole, middle renal, and in the lower pole of the left kidney 20 mm, 25 mm, and 45 mm long, respectively. The patient underwent laparoscopic tumorectomy of two lesions and cryoablation of the left renal mass by the transperitoneal approach, performed without clamping the renal vessels. At the end of the procedure the operator posed a reno-ureteral ipsilateral stent to tutor the urinary tract. Tumor enucleation and cryoablation were chosen to preserve renal function. CONCLUSION: This case report shows that in young patients with multiple renal tumors, cryoablation treatment is feasible and outcomes are promising as well. However, risk of complications should be considered and discussed with patients.
Cross-sectional online survey of nursing graduates’ academic difficulties and related factors

Objective: The aim was to explore the ratio of and differences in academic difficulties experienced by nursing graduates with associate or diploma degrees and baccalaureate degrees and the factors related to these difficulties. Methods: A quantitative cross-sectional online survey was conducted with graduate students in the master’s program in nursing from 144 graduate schools throughout Japan. Data were collected from November 2014 to December 2014. Of 1,366 potential respondents, 304 completed the survey (22.3%) and the data of 268 respondents who met the criterion were included in analysis. Experience of academic difficulties was regressed onto characteristics of respondents, such as nursing degree, Self-Directed Learning Readiness (SDLR) score, and having experience in academic activities. Results: Of the respondents, 227 (84.7%) reported they have always or frequently experienced academic difficulties. However, there was no difference in the extent of academic difficulties experienced by respondents with the different nursing degrees. Not having experience in academic activities (odds ratio [OR] = 2.05; 95% confidence interval [CI], 1.02-4.25) and reporting SDLR score less than 150 points (OR = 2.40; 95% CI, 1.18-4.83) were significantly associated with academic difficulties in the graduate school. Conclusions: Most respondents experienced academic difficulties. To promote effective education in the graduate school, pre-educational programs conducted by universities where students can gain experience in academic activities may be effective in reducing academic difficulties experienced by them. Simultaneously, examining how to inculcate an autonomous learning attitude is necessary for both nursing graduate students and graduate schools.
Temperature Effects on the Friction and Wear Behaviors of SiCp/A356 Composite against Semimetallic Materials

Due to the low density and high temperature resistance, the SiCp/A356 composites have great potential for weight reduction and braking performance using the brake disc used in trains and automobiles. But the friction coefficient and braking performance are not stable in the braking process because of temperature rising. In this paper, friction and wear behaviors of SiCp/A356 composite against semimetallic materials were investigated in a ring-on-disc configuration in the temperature range of 30°C to 300°C. Experiments were conducted at a constant sliding speed of 1.4 m/s and an applied load of 200 N. Worn surface, subsurface, and wear debris were also examined by using SEM and EDS techniques. The third body films (TBFs) lubricated wear transferred to the third body abrasive wear above 200°C, which was a transition temperature. The friction coefficient decreased and weight of semimetallic materials increased with the increase of temperature and the temperature had almost no effect on the weight loss of composites. The dominant wear mechanism of the composites was microploughing and slight adhesion below 200°C, while being controlled by cutting grooves, severe adhesion, and delamination above the 200°C.
Sentiment Analysis of Reviews using Opinion Mining on Web

Sentiment analysis and opinion mining is the field of study that analyzes people’s opinions, sentiments, evaluations, attitudes, and emotions from written language. It is the process of identifying opinions in large structured/ unstructured data and then analyzing polarity of these mined opinions. In this paper, the aim is to categorize polarity and identify the correct polarity for given sentiment. The intention is to use Recursive Neural Net-works(RNN) model. The goal is to gather product reviews and using this model to perform sentiment analysis on the collected data to make an informed and accurate suggestion to the user
Real-Time Lossless Compression of SoC Trace Data

Nowadays, with the increasing complexity of System-on-Chip (SoC), traditional debugging approaches are not enough in multi-core architecture systems. Hardware tracing becomes necessary for performance analysis in these systems. The problem is that the size of collected trace data through hardware-based tracing techniques is usually extremely large due to the increasing complexity of System-on-Chips. Hence on-chip trace compression performed in hardware is needed to reduce the amount of transferred or stored data. In this dissertation, the feasibility of different types of lossless data compression algorithms in hardware implementation are investigated and examined. A lossless data compression algorithm LZ77 is selected, analyzed, and optimized to Nexus traces data. In order to meet the hardware cost and compression performances requirements for the real-time compression, an optimized LZ77 compression algorithm is proposed based on the characteristics of Nexus trace data. This thesis presents a hardware implementation of LZ77 encoder described in Very High Speed Integrated Circuit Hardware Description Language (VHDL). Test results demonstrate that the compression speed can achieve16 bits/clock cycle and the average compression ratio is 1.35 for the minimal hardware cost case, which is a suitable trade-off between the hardware cost and the compression performances effectively. (Less)
A COMPARATIVE STUDY TO EVALUATE THE EFFICIENCY OF RCS AND CGP PROCESSES

In this research, modern manufacturing processes of constrained groove pressing (CGP) and Repetitive corrugation and straightening (RSC) as two effective severe plastic deformation (SPD) methods was applied on the specimens of low carbon steel sheets, in order to improve mechanical properties such as tensile strength and micro hardness. According to few differences between CGP and RCS a comparative study was carried out in order to investigate inhomogeneity factor, force diagram, and amount of induced strain via these two strengthening processes. The finite element simulations were carried out under 2D condition, using Abaqus software for both RCS and CGP processes. The CGP finite element simulation was first validated by the experimental results. It is concluded from this study that although less force is needed for RCS process, but CGP process is considered as a more effective SPD process due to less material wastage. In addition, the shear strains are induced on the sheet more uniformly in CGP process comparing to RCS process and thus it leads a better and more uniform mechanical properties.
Smart adaptive photonic sensor systems

Adaptive optics is a rapidly developing field. Predominantly adaptive optics is known from astronomy, where it has led to a renaissance of large earth-bound telescopes. Optical distortions of the light path through the atmosphere are corrected by controlled adaptive elements such as optical Micro-ElectroMechanical Systems (MEMS). Currently adaptive optics for a variety of applications is used. They allow in ophthalmology a fine resolution of the retina. Intriguing is the possibility to resolve retinal cells by adaptive optics, which enables an early detection of the risk for diseases such as heart and brain stroke. Adaptive optics is also found as electrically controllable focusing elements of digital CCD/CMOS cameras in cell phones. We have harnessed the power of various programmable photonics devices for the interferometric measurement and sensor techniques. This invited plenary talk will describe research conducted to demonstrate distortion-free laser measurements through a dynamic interface by a closed-loop optoelectronic system. We are employing electrically tunable optofluidics membrane lenses and MEMS micro mirrors to correct low-order wavefront distortions effectively. Our work represents a paradigm shift in measurement and sensor techniques from using static to dynamic adaptive optical elements.
Accessibility of Professional Education in Russia

In this paper, on the basis of data of RLMS and of Monitoring of economics of education, it is shown that factors of the family capital (first of all, incomes and the educational level of parents) represent an essential obstacle for educational options for Russian high schools graduates. The inequity in accessing professional education was strong in 1961-1990 as well as in 1991-2000. Some of the factors disappeared (parents' membership in the Communist Party, respondent's age), some became less influential (village as the birthplace). However, the importance of some parameters such as parents' human capital, increased. The existing social inequality of pupils' families becomes fixed and aggravated at high school level as children of poorer and less educated parents study at the worst schools and have lower progress. Therefore, the considerable inequality of educational intentions between pupils of 8- 9 classes exists: children from families with higher social positions are going to receive full secondary education and will most likely be enrolled to the university courses while children from families with low level of the family capital are going to have only primary or secondary professional education. Subsequently, this self-restriction of intentions results in the social differentiation of students in three levels of professional education (primary, secondary and higher): university's students once studied at better schools and their parents have higher social positions.
A Novel Terahertz Sensing Device Comprising of a Parabolic Reflective Surface and a BI-Conical Structure

A sensing device comprising of a parabolic re∞ective surface and a bi-conical metal structure is proposed to focus terahertz energy on sample material in the sensing zone to create a strong interaction between terahertz signals and the sample under test. The signal enhancement by the sensing device is conflrmed by modeling and simulation results. The proposed sensor is applied to investigate the polarization dependency of a split ring resonator (SRR), and spectral signatures of the SRR under difierent incident wave polarizations are obtained.
esting and quantification of cranial shape and size variation within eriones hurrianae ( Rodentia : Gerbillinae ) : A geometric orphometric approach atemeh

The Indian Jird, Meriones hurrianae, is unusual among the family Gerbillidae in not being from desert or sub-desert habitats, and in its ability to endure cold weather. Therefore, the distribution range of the Indian jird has no overlap with other species of Meriones. The habitat of the Indian jird is increasingly fragmented, so that this species is increasingly under threat. The ecology of this species, as well as its morphology, is poorly known. The present study, using a two-dimensional landmark-based geometric morphometric approach, aims to investigate intraspecific variation in skull shape and size of populations of this species. For this purpose, more than 50 skull specimens coming from different localities along the distribution range of this species were analyzed. The results allow us to reject the hypothesis that
ANTIPROLIFERATIVE EFFECTS OF SOME MEDICINAL PLANTS ON HELA CELLS

Medicinal plants maintain the health and vitality of individuals, and also have potential curative effect on various diseases, including cancer. In this study were investigated the antiproliferative effects of water extracts of previously obtained ethanolic dry extracts of three different medicinal plants (Echinacea angustifolia, Salvia officinalis and Melissa officinalis) on cell lines derived from human cervix adenocarcinoma (HeLa cells). The best cytotoxic activity (IC50 = 43.52 μg/ml) on HeLa cell lines was exhibited by Echinacea angustifolia. The extract of Salvia officinalis also showed a good cytotoxic activity against HeLa cell lines; the IC50 value was 70.41 μg/ml. Melissa officinalis manifested a slightly weaker cytotoxic activity and an IC50 value of 122.22 μg/ml. [Projekat Ministarstva nauke Republike Srbije, br. 34021 i br. 175011]
The effect of butter, naturally enriched with trans-10, cis-12 conjugated linoleic acid, on insulin resistance and inflammation in high fat-fed rodents

THE EFFECT OF BUTTER, NATURALLY ENRICHED WITH TRANS-10, CIS-12 CONJUGATED LINOLEIC ACID, ON INSULIN RESISTANCE AND INFLAMMATION IN HIGH FAT-FED RODENTS Amanda Stefanson Advisor: University of Guelph, 2013 Professor D C Wright This study was conducted to evaluate dietary CLAt10,c12, given the studies showing that supplemental doses has a negative impact on insulin resistance. To that end, we produced a 60% high fat diet composed of butter produced from milk collected from dairy cows suffering from subacute ruminal acidosis (SARA) – a condition that can sometimes result from the dairy industry production practice of feeding a high grain, low forage diet to milk-producing cows. This butter represents the most CLAt10,c12-enriched source of naturally occurring CLAt10,c12 for humans. We compared the effects of the high CLAt10,c12 butter against a commercially available butter in a high fat diet-induced rodent model of insulin resistance. After 8 weeks, whole body glucose homeostasis was evaluated along with markers of inflammation, indicated by mitogen-activated protein kinase (MAPK) activation.
Free cash flow, investment inefficiency, and earnings management: evidence from manufacturing firms listed on the Indonesia Stock Exchange

The study aims to test investment inefficiency of fixed assets in mediating the relationship between free cash flow and earnings management and to test the controlling shareholders in moderating the relationship between free cash flow and fixed assets investment inefficiency. The research problem proposed in this study is whether the use of free cash flow for the investment inefficiency of fixed assets is able to ultimately improve the managerial performance. This research investigates new empirical evidence related to management earnings practices caused by free cash flow fixed assets investment inefficiency. The study was conducted on all the manufacturing firms listed on the Indonesia stock exchange from 2010 to 2015. The data used are secondary data in the form of the firms’ financial statements. Using purposive sampling, 314 units were analyzed from 69 manufacturing firms. The estimation of the path model was completed using Structural Equation Modeling (SEM) by WarpPLS program version 5.0. The results showed that free cash flow is positively related to earnings management. Fixed assets investment inefficiency is able to mediate the relationship between free cash flow and earnings management.
Real-time Elective Admissions Planning for Health Care Providers

Efficient management of patient admissions plays a critical role in increasing a hospital’s resource utilization and reducing health care costs. We consider the problem of finding the best available admission policy for elective hospital admissions under real time constraints. The problem is modeled as a Markov Decision Process (MDP) and we investigate current state-of-the art real time planning methods. Due to the complexity of the model, traditional model-based planners are limited in scalability since they require an explicit enumeration of the model dynamics. To overcome this challenge, we apply sample-based planners along with efficient simulation techniques that given an initial start state, generate an action on-demand while avoiding portions of the model that are irrelevant to the start state. Results show that given reasonable resources, our approach generates improved decisions over existing alternatives that fail to scale as model complexity increases. We also propose a parameter tuning method that can be easily and efficiently implemented.
Performance of High-Permittivity Ceramic-Polymer Composite as a Substrate for UHF RFID Tag Antennas

A high-permittivity ceramic-polymer composite substrate is fabricated and proposed for its potential use in UHF RFID tags. The substrate is developed using high-permittivity Barium Titanate (BaTiO3) ceramic powder mixed with polydimethylsiloxane (PDMS) polymer. The resulting composite achieves a soft, hydrophobic, heat resistant, low loss, and flexible material with high dielectric constant. The percentage of the ceramic powder in the composite helps in achieving variable permittivity values. When this material is used as a substrate for a tag antenna, it will help the tag to be reduced in size, to conform to uneven or rough surface, and to be less vulnerable to breakage or other environmental damages. A small passive UHF RFID tag antenna is designed, fabricated, and attached to this type of composite substrate, to demonstrate the performance of this composite material.