Miracle-dz/UniFAR-FTUs huggingface dataset:
A high yield 12-bit 250-MS/s CMOS D/A converter

A 12-bit linearity binary-weighted all MOS transistor D/A converter is presented. Experimental results demonstrate the feasibility of fabricating with high yield such a converter in a standard CMOS 0.7 /spl mu/m technology. The output drives a doubly terminated 50 /spl Omega/ coaxial cable. The full scale 10-90% rise/fall time is 4 ns. The active chip area is 1 mm/sup 2/.
Retention and progression of postgraduate business students: an Australian perspective

This paper presents the findings of an exploratory case study that investigated factors affecting the retention and progression of postgraduate business students at a major Australian distance education university. The majority of prior research addressing student retention focuses on undergraduate on‐campus students, while this research investigated the postgraduate distance education context. The findings of this research indicate that a range of factors, in many cases different to those identified in the student retention literature, impact upon retention and progression in this context. This paper concludes with implications for distance education providers and recommendations for further research.
Effect of exercise on 23Na MRI and relaxation characteristics of the human calf muscle

The acute affect of voluntary muscle contractions performed by healthy volunteers was evaluated using 23Na nuclear magnetic resonance (NMR). Three‐dimensional gradient‐echo 23Na images, pulse‐acquired spectra, and transverse relaxation times were obtained before and after ankle flexion‐extension exercise. The muscle sodium concentration was calculated from 23Na images using a 40 mM NaCl standard and the measured T2 values. Before exercise the muscle sodium concentration was 26 ± 4 mmole/kg wet weight. This agrees closely with literature values, suggesting that muscle Na+ is fully NMR visible. The 23Na image intensity increased by 34% ± 7% in the exercised muscle and diminished with a half‐life of 30 ± 6 minutes. The pulse‐acquired spectra, however, did not show any significant change in muscle signal intensity following exercise, but the relative contribution of the slow T2 component increased. The calculated sodium concentration also did not change significantly after the exercise. We therefore infer that the changes in 23Na magnetic resonance imaging (MRI) were due to a change in sodium‐macromolecular interaction rather than a change in tissue sodium content. We believe that this report represents the first study of 23Na MRI of skeletal muscle. J. Magn. Reson. Imaging 2000;11:532–538. © 2000 Wiley‐Liss, Inc.
Iterative Channel Estimation for the Chinese Digital Television Terrestrial Broadcasting Systems with the Multiple-Antenna Receivers

Orthogonal frequency division multiplexing is an effective against multipath fading and high data throughput wireless channel transmission technology. Assistance with the inverse fast Fourier transform and fast Fourier transform operation, orthogonal frequency division multiplexing modulation and demodulation operations of the system convenient and convenient hardware implementation, orthogonal frequency division multiplexing, so in the modern digital television terrestrial broadcasting the system is widely used to support high performance bandwidth-efficient multimedia services. Broadband multi-carrier orthogonal frequency division multiplexing with multi-antenna and multi-antenna receiving system, to increase the diversity gain and improve the capacity of the system in different multipath fading channel. Accurate channel estimation in a simple channel equalization and decoding of broadband multi-carrier orthogonal frequency division multiple-antenna receiver and channel estimation accuracy and multiplexing system is very important, is the key to the performance of the overall broadband multi-carrier orthogonal frequency division multiplexing system in the multi-antenna receiver bit error rate. In this paper, iterative channel estimation to plan for digital terrestrial television broadcasting broadband multi-carrier orthogonal frequency division multiple antenna receiver multiplexing system proposal.
Self-adjusting threshold-voltage scheme (SATS) for low-voltage high-speed operation

A circuit technique to reduce threshold voltage fluctuation by a use of self-substrate-bias is introduced. The substrate bias is controlled so that leakage current of a representative MOSFET is adjusted constant with a feedback loop. The threshold voltage can be controlled within /spl plusmn/0.05 V and the speed gains under 1.5 V and 1V V/sub DD/ are estimated to be a factor of 1.3 and 3, respectively. A test chip is fabricated and effectiveness of the scheme is investigated. <<ETX>>
Polyps and diverticulosis of large bowel in autopsy population of Akita prefecture, compared with Miyagi. High risk for colorectal cancer in Japan

A necropsy study of polypoid lesions and diverticula of the large bowel in the Japanese prefectures of Akita and Miyagi indicated that adenomatous polyps were more numerous in Akita (30%) than Miyagi (18.3%). They also were larger and showed more severe atypia in Akita. The sigmoid colon and rectum showed the most severe atypia in both prefectures. Hyperplastic polyps and diverticula were very uncommon in both prefectures. These results are discussed in relation to the different levels of risk to colorectal carcinoma in these prefectures and in Japanese migrants to Hawaii.
Robust scene interpretation of underwater image sequences

A novel vision system is proven at a conceptual level to help unmanned remotely operated vehicles (ROVs) interpret underwater oceanic scenes and clarify noisy image sequences. The images contain objects of interest (metal cylinders of a known oil rig structure) and background (water). After contrast stretching for enhancement, images are segmented using a quickly convergent method based on Markov random fields (MRFs). This iterated conditional mode MRF uses deterministic relaxation to rapidly converge. Cylinders are analysed to determine the camera's viewing direction, range and twist off the vertical. The camera's position is then calculated given knowledge of the node in view. Successive viewpoints from a sequence of images are fed through a Kalman filter to predict the next viewpoint. Placing this in a 3D computer model of the structure allows a 2D predicted image to be projected. This is combined with the next acquired image to improve object recognition by the MRF segmentation method. This novel predictive feedback method shows better resilience to noise, matching noisy images to the clearer model that would otherwise go unrecognised.
[Evaluation of serum insulin levels after an oral glucose load for the diagnosis of insulin resistance].

BACKGROUND In our country, the assessment of insulin resistance (IR) measuring serum insulin levels at 60 and 120 minutes after a 75 g oral glucose tolerance test (OGTT), is usual. However, there is no information about the distribution of serum insulin levels in the Chilean population. AIM To assess the distribution of serum insulin levels at 60 and 120 minutes during OGTTs and suggest a statistical cut-off point to estimate the degree of IR. MATERIAL AND METHODS Retrospective analysis of 1815 OGTTs performed in non-diabetic subjects aged between 18 and 75 years, at a university medical center. HOMA-IR (Homeostasis Model Assessment), insulin sensitivity index of Matsuda (ISI-Composite), and their correlation with serum insulin levels at 60 and 120 minutes were calculated. RESULTS The 75th percentiles for serum insulin levels at 60 and 120 minutes were 127 and 81 µU/mL, respectively. There was a high correlation between HOMA-IR and ISI-Composite (r = -089, p < 0.001). There was a weaker although significant correlation between HOMA-IR and ISI-Composite and insulin levels at 60 (r = 0.56 and -0.79 respectively, p < 0,001) and 120 minutes (r = 0.54 and -0.75 respectively, p < 0,001). CONCLUSIONS We propose 60 and 120 min serum insulin levels of 130 and 80 µU/mL respectively, as cut-off values for normality during OGTT in Chilean normoglycemic individuals.
Interactive Inverse 3D Modeling

Abstract“Interactive Inverse 3D Modeling” is a user-guided approach to shape construction and redesign that extracts well-structured, parameterized, procedural descriptions from unstructured, hierarchically flat input data, such as point clouds, boundary representation meshes, or even multiple pictorial views of a given inspirational prototype. This approach combines traditional “forward” 3D modeling tools with a system of user-guided extraction modules and optimization routines. With a few cursor strokes users can express their preferences of the type of modeling primitives to be used in a particular area of the given prototype to be approximated, and they can also select the degree of parameterization associated with each modeling routine. The results are then pliable, structured descriptions that are well suited to implement the particular design modifications intended by the user.
Adiponectina e baixo risco cardiometabólico em obesas

OBJECTIVE: To investigate the association between elevated levels of plasmatic adiponectin (AdipoQ) and low cardiometabolic risk (CMR) in obese women (ObW). SUBJECTS AND METHODS: Case-control study, matched by age, of 306 ObW, BMI > 30 kg/m2, with 66 cases (21.6%) - all non-hypertensive, normolipidemic, and non-diabetic - conducted in SUS (Brazil's Public Health System) outpatient referral services for obesity in the City of Salvador, Brazil. Secondary data were collected from medical records; primary and complementary data were obtained from a clinical pathology laboratory. Values of AdipoQ > 10.00 µg/ml (> 3rd quartile) were considered elevated. Descriptive, bivariate, and conditional logistic regression analyses were performed. RESULTS: A statistically significant positive association between low CMR and AdipoQ > 10.00 µg/ml in physically active (AOR = 5.1; CI95%: 1.8-14.3), non-smoking (AOR = 3.6;CI95%: 1.6-8.4) ObW was found. CONCLUSION: This study suggests that physically active, non-smoking ObW, with higher AdipoQ levels, present greater chances of a low CMR. It becomes important to reinforce encouragement of the adoption of healthy behaviors, by means of public policies.
Principales características de la Investigación Biomédica actual, en Chile

Background: Biomedical research is a fundamental tool for the development of a country, requiring human and financial resources. Aim: To define some current characteristics of biomedical research, in Chile. Methods: Data on entities funding bio-medical research, participant institutions, and the number of active investigators for the period 2007-2009 were obtained from institutional sources; publications indexed in PubMedfor2008-2009 were analysed. Results: Mostfinancial resources invested in biomedical research projects (approximately US$ 19 million per year) came from the "Comision Nacional de Investigacion Cientifica y Tecnologica" (CONICYT), a state institution with 3 independent Funds administering competitive grant applications open annually to institutional or independent investigators in Chile. Other sources and universities raised the total amount to US$ 26 million. Since 2007 to 2009, 408 investigators participated in projects funded by CONICYT. The main participant institutions were Universidad de Chile and Pontificia Universidad Catolica de Chile, both adding up to 84% of all funded projects. Independently, in 2009,160 research projects -mainly multi centric clinical trials- received approximately US$ 24 million from foreign pharmaceutical companies. Publications listed in PubMed were classified as "clinical research" (n = 879, including public health) or "basic biomedical research" (n = 312). Conclusions: Biomedical research in Chile is mainly supported by state funds and university resources, but clinical trials also obtained an almost equivalent amount from foreign resources. Investigators are predominantly located in two universities. A small number of MD-PhD programs are aimed to train and incorporate new scientists. Only a few new Medical Schools participate in biomedical research. A National Registry of biomedical research projects, including the clinical trials, is required among other initiatives to stimulate research in biomedical sciences in Chile.
Simple synchronisation technique for three-phase grid-connected distributed generation systems

Grid synchronisation is crucial for integration of renewable energy sources and distributed generation systems into the grid. Accurate and fast estimation of the fundamental positive sequence component is a necessity for synchronisation of three-phase distributed generation systems with the grid. In this study, a simple synchronisation technique based on the real-complex-coefficient filters is proposed. It has a very simple structure, and can directly estimate the fundamental positive and negative sequences under the distorted, unbalanced and offset conditions with no need of a phase-locked loop. Furthermore, the dc offset can also be extracted precisely. For optimising the steady-state and dynamic performance, a parameter tuning guidance is provided from the eigenvalue analysis point of view. In addition, a simple auxiliary unit is presented to remain its frequency-adaptive feature. Finally, experimental results based on a 32-bit fixed-point TMS320F2812 DSP verify the effectiveness of the proposed synchronisation method.
HealthCare Recommendation for Personalized Framework

Now a days, for any kind of information, people depend on internet. They use search engines like Google to search information over internet. The queries have to be accurate that will give the information related to user's Health Care. But there is huge amount of information on the internet and so it's difficult to get the relevant information easily. In case of searches on right food exercise, people usually have their own preferences. Also people are restricted to some medical conditions so some foods and exercises are avoided so they are attracted towards other food and exercises. Also the civilization where people reside will have impact on the number of choices and varieties of food. So there is need for easy to use framework for food and exercise recommendation. We propose ontology based framework for Health Care recommendation system which will provide precise information based on users requirements and constraints. This framework will use semantic web technology to analyze user's preferences and will build a nourished and health associated use's profile and will use the profile to categorize the associated knowledge so that users can make delicious food and exercise inquiries. We will also use the Decision Tree algorithm for retrieving related information from the database. General Terms Data mining and Information Retrieval, Decision tree.
How does Hebb both ‘divide’ and ‘conquer’ speech perception and production?

A particular merit of Hickok's integrated (H)SFC model lies in the mechanistic detail with which psycholinguistic, motor control and neuroscientific perspectives on speech production are bridged, offering a much-welcomed alternative to traditional views on how concepts are translated to speech in the human mind. However, there seems to be an inconsistency between the dynamics engendering the mature (H)SFC model and those which allow the model to develop this architecture. Concretely, I question how the proposed (H)SFC model, which becomes functionally connected through Hebbian-like learning, provides the adult speaker with a brain network where ventral and dorsal streams dissociate.
An automated tagging approach to improve search and retrieval in a radio archive

While a manual process guarantees accurate tagging of archive material, it is very time-consuming. Hence not all media content in a big broadcast archive can be annotated sufficiently. A more automated tagging process could reduce the amount of unannotated content. This paper describes how speech technology is applied on one year of VRT Radio 1 Dutch-speaking news archive content to address the issue above. Different options are discussed and an automated approach is suggested. Techniques such as speech recognition, keyword spotting and keyword extraction are combined to generate automatic annotations. A search engine prototype was implemented to assess the findability of the radio content. Results from the prototype show that the proposed automated approach can improve annotation and search efficiency significantly while still maintaining high precision. The results and lessons learned, which will be presented, are not only valuable to archivists, but moreover to other professional users such as journalists and even the end user.
An Energy-Aware Broadcast Scheme based on Connected Dominating Set for Mobile Ad Hoc Networks

In mobile ad hoc networks (MANETs), the straightforward broadcast scheme is the flooding algorithm which may result in a substantial amount of redundant messages contending the network bandwidth. The recently proposed connected dominating set (CDS) based broadcast schemes are promising because they are capable of reducing the number of the redundant broadcast messages. In these CDS-based broadcast schemes, only the mobile hosts (MHs) belonging to pre-computed CDS are responsible for relaying the broadcast messages. In this paper, an improved CDS scheme called energy-aware CDS (ECDS) broadcast scheme is proposed to balance the energy consumption of the network nodes. The CDS node selection algorithm in ECDS is based on a weighted utility function parameterized with the mobility and remaining power of MHs. Two types of periodical CDS update mechanisms, ECDS-I and ECDS-II, are proposed to deal with the dynamics of network topology and energy-consumption imbalance problem. ECDS-I computes only one CDS in an update cycle while ECDS-II computes multiple CDSs that are used in a simple round-robin fashion in a cycle. Simulation results show that both ECDS-I and ECDS-2 outperform the original CDS-based scheme in terms of successful broadcast rate and network lifetime.
Performance evaluation methods for multiple-target-tracking algorithms

Scoring methods are described for evaluating the performance of a multiple target tracking (MTT) algorithm fairly, without undue bias towards any particular type. The methods were initially developed by individuals and further developed and adapted by the members of the SDI panels on tracking. Ambiguous track-to-target truth association is the fundamental difficulty in MTT performance evaluation. The methods use a global nearest neighbor assignment algorithm to uniquely associate tracks to targets. With the track- to-target associations, the methods employ measures of effectiveness for track purity, data association, state estimation accuracy, and credibility of filter calculated covariance.
The American Livestock Breeds Conservancy and the Rare Breeds Survival Trust

When people think of conservation and biodiversity they usually think of rainforests and exotic endangered wildlife rather than farm animals, yet the two societies profiled here are involved in conservation of biodiversity within domestic livestock. The Oxford Reference Online Dictionary of Biology defines biodiversity in three types: “The existence of a wide variety of species (species diversity) or other taxa of plants, animals, and microorganisms in a natural community or habitat, or of communities within a particular environment (ecological diversity), or of genetic variation within a species (genetic diversity). ” (“biodiversity,” 2000) It is this third definition focusing on genetic diversity that is most relevant to livestock. Breeds of animals within a domestic species (like cattle, sheep, or swine) are like subspecies among wild animals. Breeds are “animals having a common origin and characteristics that distinguish them from SOCIETY OF THE QUARTER
Linguistics: An Introduction to Language and Communication

This popular introductory linguistics text is unique for its integration of themes. Rather than treat morphology, phonetics, phonology, syntax, and semantics as completely separate fields, the book shows how they interact. It provides a sound introduction to linguistic methodology while encouraging students to consider why people are intrinsically interested in language―the ultimate puzzle of the human mind. The text first treats such structural and interpretive parts of language as morphology, phonology, syntax, and semantics, then takes a cognitive perspective and covers such topics as pragmatics, psychology of language, language acquisition, and language and the brain. For this sixth edition, all chapters have been revised. New material includes updated examples, new special topics sections, and new discussions of the minimalist program, semantic minimalism, human genetic relationships and historical relationships among languages, Gricean theories, experimental pragmatics, and language acquisition. The organization of the book gives instructors flexibility in designing their courses. Chapters have numerous subsections with core material presented first and additional material following as special topics. The accompanying workbook supplements the text with exercises drawn from a variety of languages. The goal is to teach basic conceptual foundations of linguistics and the methods of argumentation, justification, and hypothesis testing within the field. By presenting the most fundamental linguistics concepts in detail, the text allows students to get a feeling for how real work in different areas of linguistics is done.
THE NATURE OF LINEAR INFORMATION IN THE MORPHOSYNTAX-PF INTERFACE

© 2011 by the English Linguistic Society of Japan * Parts of this article were presented at International Phonetics and Phonology Forum (Kobe University, August 2009) and the 28th Conference of the English Linguistic Society of Japan (Nihon University, November 2010). I would like to thank the audiences there for comments and suggestions. I am also indebted to anonymous EL reviewers of earlier versions of this article, as well as Yoshihito Dobashi. I also thank Kaoru Fukuda for providing me with statistical analysis of the data. Thanks go to Yasutomo Kuwana for discussion of data and the ideas presented here. This study is supported by Sapporo University and Grant-in-Aid for Scientific Research (A20242010, C22520507). All remaining inadequacies are my own.
Statistical investigation of sum-of-sinusoids fading channel simulators

Rayleigh fading due to multipath propagation in wireless channels is widely modelled using sum-of-sinusoids simulators. In particular, Jakes' simulator and derivatives of Jakes' (1994) simulator have gained widespread acceptance. Despite this, few in-depth studies of the simulators' statistical behaviours have been reported in the literature. Here, the extent to which Jakes' simulator adequately models the multipath Rayleigh fading propagation environment is examined. The results show that Jakes' simulator does not reproduce some important properties of physical fading channels.