Miracle-dz/UniFAR-FTUs huggingface dataset:
Clocking circuits for a 16Gb/s memory interface

8 GHz clocking circuits for a 16 Gb/s/pin asymmetric memory interface [1] are described. A combination of an LC-PLL and a ring-PLL achieves improved jitter performance for multiple phase outputs with a wide frequency range. A direct phase mixer and a digitally controlled duty-cycle corrector (DCC) are time-multiplexed between transmitter (TX) and receiver (RX), thereby reducing area and power. The prototype chip implemented in a 65 nm CMOS technology has measured 734 fs RJ (rms) at the TX output when operating at 16 Gb/s.
Are 2 electrocardiographic leads enough for multilead wave boundary location and QT measuring?

Different latencies on the cardiac electric phenomena can be found across leads. Thus combining adequately the information provided by multiple leads is essential for the correct location of global wave boundaries. A multilead-VCG strategy for boundaries location, by constructing a transformed spatial lead obtained from 3 orthogonal leads and optimized for delineation improvement, has been previously proposed and validated [1]. The goal of this work was to study and to quantify the performance loss when just 2 orthogonal leads are used. Combination of 2 leads were considered, both using recorded Frank leads, leads synthesised using inverse Dower transformation, and principal component analysis. The errors in QRS onset and T wave end location and in QT interval measurement were evaluated over the PTB database files. Results indicate that 2 leads properly selected are enough to locate QRS onset but possibly not for T wave end.
Whole-body cooperative balancing of humanoid robot using COG Jacobian

Since humanoid robots have a number of degrees-of-freedom in general, a pattern-based approach of the motion control reduces its difficulty. It is necessary, however, to absorb and compensate disturbances in order to maintain the stability of robots in the real world. We developed a balancing method for humanoid robots with a little modification of predesigned motion trajectories. The method proposed has an advantage that it is allowed to choose any combination of joints as modified properties, so that it has enough flexibility, being applicable for various types of robots and motions. It consists of two phases; in the first phase, the referential COG displacement is decided in accordance with both the short-term and the long-term absorption of disturbances. And in the second phase, the COG is manipulated with the whole-body cooperation, using the COG Jacobian. We verified the validity of the method with some simulations.
Process-Oriented Collective Operations

Distributing process-oriented programs across a cluster of machines re- quires careful attention to the effects of network latency. The MPI standard, widely used for cluster computation, defines a number of collective operations: efficient, reusable algorithms for performing operations among a group of machines in the clus- ter. In this paper, we describe our techniques for implementing MPI communication patterns in process-oriented languages, and how we have used them to implement collective operations in PyCSP and occam- on top of an asynchronous messaging framework. We show how to make use of collective operations in distributed process- oriented applications. We also show how the process-oriented model can be used to increase concurrency in existing collective operation algorithms.
Contrasting Roles of E2F2 and E2F3 in Cardiac Neovascularization

Insufficient neovascularization, characterized by poor endothelial cell (EC) growth, contributes to the pathogenesis of ischemic heart disease and limits cardiac tissue preservation and regeneration. The E2F family of transcription factors are critical regulators of the genes responsible for cell-cycle progression and growth; however, the specific roles of individual E2Fs in ECs are not well understood. Here we investigated the roles of E2F2 and E2F3 in EC growth, angiogenesis, and their functional impact on myocardial infarction (MI). An endothelial-specific E2F3-deficient mouse strain VE-Cre; E2F3fl/fl was generated, and MI was surgically induced in VE-Cre; E2F3fl/fl and E2F2-null (E2F2 KO) mice and their wild-type (WT) littermates, VE-Cre; E2F3+/+ and E2F2 WT, respectively. The cardiac function, infarct size, and vascular density were significantly better in E2F2 KO mice and significantly worse in VE-Cre; E2F3fl/fl mice than in their WT littermates. The loss of E2F2 expression was associated with an increase in the proliferation of ECs both in vivo and in vitro, while the loss of E2F3 expression led to declines in EC proliferation. Thus, E2F3 promotes while E2F2 suppresses ischemic cardiac repair through corresponding changes in EC proliferation; and differential targeting of specific E2F members may provide a novel strategy for therapeutic angiogenesis of ischemic heart disease.
Behavioral model for secure group communication in wireless mesh networks

Accompanying dramatic advances in wireless Mesh networking, the demand for advanced mechanisms to employ wireless Mesh networks in public safety continues to grow. However, this special field communication brings new security challenges. In this paper, we propose a behavioral model NODE EYE for secure group communication in wireless Mesh networks. We contend that our model facilitates reasoning about protocols designed for public safety by integrating the behavioral trust and cryptographic aspects of group communication in the special field. We illustrate our concept by introducing group key agreement and distribution protocols to support special communication cases associated with the public safety.
Stein’s method for discrete Gibbs measures

Stein's method provides a way of bounding the distance of a probability distribution to a target distribution $\mu$. Here we develop Stein's method for the class of discrete Gibbs measures with a density $e^V$, where $V$ is the energy function. Using size bias couplings, we treat an example of Gibbs convergence for strongly correlated random variables due to Chayes and Klein [Helv. Phys. Acta 67 (1994) 30--42]. We obtain estimates of the approximation to a grand-canonical Gibbs ensemble. As side results, we slightly improve on the Barbour, Holst and Janson [Poisson Approximation (1992)] bounds for Poisson approximation to the sum of independent indicators, and in the case of the geometric distribution we derive better nonuniform Stein bounds than Brown and Xia [Ann. Probab. 29 (2001) 1373--1403].
Variable-sample methods and simulated annealing for discrete stochastic optimization

In this paper we discuss the application of a certain class of Monte Carlo methods to stochastic optimization problems. Particularly, we study variable-sample techniques, in which the objective function is replaced, at each iteration, by a sample average approximation. We first provide general results on the schedule of sample sizes, under which variable-sample methods yield consistent estimators as well as bounds on the estimation error. Because the convergence analysis is performed sample-path wise, we are able to obtain our results in a flexible setting, which includes the possibility of using different sampling distributions along the algorithm, without making strong assumptions on the underlying distributions. In particular, we allow the distributions to depend on the decision variables x. We illustrate these ideas by studying a modification of the well-known simulated annealing method, adapting it to the variable-sample scheme, and show conditions for convergence of the algorithm.
CODES: mining source code descriptions from developers discussions

Program comprehension is a crucial activity, preliminary to any software maintenance task. Such an activity can be difficult when the source code is not adequately documented, or the documentation is outdated. Differently from the many existing software re-documentation approaches, based on different kinds of code analysis, this paper describes CODES (mining sourCe cOde Descriptions from developErs diScussions), a tool which applies a "social'' approach to software re-documentation. Specifically, CODES extracts candidate method documentation from StackOverflow discussions, and creates Javadoc descriptions from it. We evaluated CODES to mine Lucene and Hibernate method descriptions. The results indicate that CODES is able to extract descriptions for 20% and 28% of the Lucene and Hibernate methods with a precision of 84% and 91% respectively.
Career Indecision Profile-65 Scores: Test–Retest Reliability and Measurement Equivalence in College and Noncollege Samples

The Career Indecision Profile-65 (CIP-65) is a relatively new measure of career indecision that appears to have promise for use in career counseling and research. We sought to expand the information available to those evaluating the CIP-65 for potential use by assessing its measurement equivalence in college (N = 529) and noncollege (N = 472) samples and its scores’ test–retest reliability in a subset of the college–student sample (n = 107). Six-week test–retest reliability coefficients ranged from . 58 (interpersonal conflicts) to . 85 (choice/commitment anxiety) for the subscale scores. Confirmatory factor analyses revealed that the CIP-65’s four-factor structure fit the data well in both the college and noncollege samples. The CIP-65 scores were configurally invariant in the two samples, but we did not find support for metric invariance. We offer explanations for these findings, discuss implications for practice, and present ideas for future research.
Ethnic identity and race: the “double absence” and its legacy across generations among Australians of Southern Italian origin. Operationalizing institutional positionality.

ABSTRACT The paper provides a discussion on the concept of “double absence” and its legacy among participants originating from Calabria, Italy. It illustrates the impact of such an embodied affective state in light of race-ethnic relations perceived intergenerationally. While the first generation of participants manifest a condition of feeling “absent”, the second generation present a condition of “liminality”, as a result of a socialization process between “the world” of their immigrant parents and the Australian one. The third generation, due to a perceived positive evaluation about their ethnic background, manifests its ethnicity proudly. A pivotal role is played by the amount of cultural capital accumulated by the participants, dynamics of assimilation and the exogenous pressures the participants perceived from the “common sense” of the dominant society, as Gramsci terms it. Individuals’ ethnic identity appears to be shaped by their institutional positionality, which is their ethnic perception of “being in the world”.
Variational Inference for Latent Variables and Uncertain Inputs in Gaussian Processes

The Gaussian process latent variable model (GP-LVM) provides a flexible approach for non-linear dimensionality reduction that has been widely applied. However, the current approach for training GP-LVMs is based on maximum likelihood, where the latent projection variables are maximised over rather than integrated out. In this paper we present a Bayesian method for training GP-LVMs by introducing a non-standard variational inference framework that allows to approximately integrate out the latent variables and subsequently train a GP-LVM by maximising an analytic lower bound on the exact marginal likelihood. We apply this method for learning a GP-LVM from i.i. d. observations and for learning non-linear dynamical systems where the observations are temporally correlated. We show that a benefit of the variational Bayesian procedure is its robustness to overfitting and its ability to automatically select the dimensionality of the non-linear latent space. The resulting framework is generic, flexible and easy to extend for other purposes, such as Gaussian process regression with uncertain or partially missing inputs. We demonstrate our method on synthetic data and standard machine learning benchmarks, as well as challenging real world datasets, including high resolution video data.
Residual Mobilities: Infrastructural Displacement and Post-Colonial Computing in Bangladesh

This paper explores discrepancies between the founding assumptions of mobile and ubiquitous computing in the western world, and the starkly different experiences of mobility and infrastructure to be found in many post-colonial environments. Based on a field study of forced mobility and technology use among populations displaced by the Hatirjheel waterfront development project in Dhaka, Bangladesh, we make two basic arguments. First, we point to the partial nature of assumptions around mobility that frame the imagination of mainstream HCI research, and argue that different and heretofore residual experiences of mobility must also be accounted for in post-colonial and other marginal computing environments. Second, we document four forms of infrastructural experience -- dispossession, reconstitution, collaboration, and repair -- that characterize real-world engagements with infrastructure in such settings. We conclude with implications for HCI research and design, and reflections on how HCI researchers might better account for such experiences in their work.
Scalability vs . Development Effort for Multiprocessor Operating System Kernels

With multiprocessors becoming increasingly common, many operating systems have to be adapted to work with the multiprocessor systems. In this paper, we present a categorization of porting methods for multiprocessor operating systems. We also perform a case study of the evolution of multiprocessor support for the Linux kernel, both in terms of performance and implementation complexity.
Temperature Bias and the Primordial Helium Abundance Determination

We study the effect that the temperature structure has on the determination of the primordial helium abundance, Yp. We provide an equation linking T(O III), the temperature derived from the [O III] lines, and T(He II), the temperature of the He I lines, both for H II regions with O++ only and for H II regions where a fraction of O+ is present. By means of T(He II), which is always smaller than T(O III), we derive the helium abundances of five objects with low and very low metallicity (NGC 346, NGC 2363, Haro 29, SBS 0335-052, and I Zw 18); these objects were selected from the literature because they include the three low-metallicity objects with the best line determinations and the two objects with the lowest metallicity. From these abundances we obtain that Yp(nHc) = 0.2356 ± 0.0020, a value 0.0088 lower than that derived by using T(O III). We call this determination Yp(nHc) because the collisional contribution to the Balmer-line intensities has not been taken into account. All the recent Yp determinations in the literature have not taken into account the collisional contribution to the Balmer-line intensities. By considering the collisional contribution to the Balmer-line intensities of these five objects, we derive that Yp(+Hc) = 0.2384 ± 0.0025.
Optimally Robust System Identification of Systems Subject to Amplitude Bounded Stochastic Disturbances

In this contribution it is shown that log cos(x=(2C)) is the optimally robust norm for prediction error methods with respect to amplitude bounded stochastic disturbances. This norm minimizes the maximum asymptotic covariance matrix of the parameter estimates for the family of innovations of the system which are amplitude bounded by the constant C. Furthermore, the stochastic worst-case performance of the estimate corresponding to the norm log cos(x=(2C)) is better than the worst-case performance of the least-squares estimate even if the constant C is chosen larger than the actual amplitude bound on the innovations. In addition to its favorable properties in a stochastic setting this norm also generates estimates which are unfalsiied in a deterministic framework.
Trade and Industrial Policies with Heterogeneous Firms: The Role of Country Asymmetries

This paper explores the role of country asymmetries for trade and industrial policies with heterogeneous firms. The analysis delivers a number of novel results. First, trade policies, infrastructure policies and industrial policies which improve the business conditions in one country have negative productivity and welfare effects on the trading partner. Second, symmetric trade liberalization is immiserizing for a trading partner whose business conditions are inferior. Third, there are gains from trade even for a country whose monopolistically competitive sector with heterogeneous firms is wiped out by switching from autarky to trade.
How do dimensions of proximity relate to the outcomes of collaboration? A survey of knowledge-intensive networks in the Dutch water sector

There is a growing body of literature on the importance of proximity for innovation and other knowledge-related outcomes. We examine the impact of geographical, social, organisational, and cognitive proximity for a heterogeneous population, including people from academia, knowledge institutes, industry, and government. We analyse data on 1020 ego–alter relationships, derived from a survey among water professionals in the Netherlands. The use of survey data allows for more refined indicators of proximity and more diverse collaboration outcomes than those common in the literature. Social and cognitive proximity have a positive effect for all outcomes examined. Geographical and organisational proximity have a negative effect on hard (tangible) outcomes yet a weak positive (if any) effect on soft (intangible) outcomes. We do not find evidence for the suggestions in the conceptual literature that proximity follows an inverted U-curve where most outcomes are achieved in relations with some but not too much proximity.
Antagonism of FOG-1 and GATA factors in fate choice for the mast cell lineage

The zinc finger transcription factor GATA-1 requires direct physical interaction with the cofactor friend of GATA-1 (FOG-1) for its essential role in erythroid and megakaryocytic development. We show that in the mast cell lineage, GATA-1 functions completely independent of FOG proteins. Moreover, we demonstrate that FOG-1 antagonizes the fate choice of multipotential progenitor cells for the mast cell lineage, and that its down-regulation is a prerequisite for mast cell development. Remarkably, ectopic expression of FOG-1 in committed mast cell progenitors redirects them into the erythroid, megakaryocytic, and granulocytic lineages. These lineage switches correlate with transcriptional down-regulation of GATA-2, an essential mast cell GATA factor, via switching of GATA-1 for GATA-2 at a key enhancer element upstream of the GATA-2 gene. These findings illustrate combinatorial control of cell fate identity by a transcription factor and its cofactor, and highlight the role of transcriptional networks in lineage determination. They also provide evidence for lineage instability during early stages of hematopoietic lineage commitment.
A Concept for Radio Standard Spanning Communication in Mobile Ad Hoc Networks

An important aspect in the field of selforganisation in mobile Ad Hoc networks is an efficient crosslinking of all nodes in a high-dynamic network topology. This should be durable against disturbances and partial losses and distribute the net load on all net elements as evenly as possible. Past research approaches limit their solutions to the usage of a homogeneous topology on basis of a unique radio standard. This paper deals with an approach for a communication in mobile Ad Hoc networks, that integrates multiple radio standards. Thereby, the choice of the used radio standard is invisible for the respective application. For the protocol conversion on the hardware side a special interface block is used. Thus enables an economical, radio standard spanning point-to-point communication on basis of the TCP/IP protocol stack. Furthermore, the concept offers the possibility of integrating already existing devices with standardised radio modules into an existing network topology.
A first attempt to develop a lexical resource for Dogri language: Dogri WordNet using Hindi WordNet

In this paper an attempt is made to study and analyze the prototype model for developing a WordNet for Dogri language, and describes its specific characteristics and properties to develop WordNet. In terms of morphological and syntactic structure the characteristics of the Dogri language are discussed in this paper. As Dogri is written in the same script as Hindi (Devanagri) and there are minor variations in Hindi-Dogri words structure so we can follow the approaches used by Hindi Word Net to great extent. After the completion of Dogri Wordnet more extensive study will be undertaken for the development of advanced NLP tools like Spell checker, Parser, Stemmer, IR system for Dogri language.
The effect of isometric handgrip training on blood pressure

The aim of this study was to determine the effect of single-bout isometric handgrip training on systolic (BPS) and diastolic blood pressure (BPD). Healthy normotensive (BP<120/80 mmHg) (n=6) and prehypertensive (BPS 120–139 mmHg and/or BPD 80–89 mmHg) (n=6) women with mean age of 47.3±14.0 years, who did not take antihypertensive medicine, participated in the study. Blood pressure (BP) was measured with aneroid sphygmomanometer Riester Precisa N (Germany). Thereafter with the JAMAR hydraulic hand dynamometer (USA) maximal isometric contraction (MVC) was recorded. After a rest of 3 min, the subject was asked to perform the isometric contraction at 30% of MVC for 2 min and that was repeated for four times with rest of 1 min after each bout of contraction. BP was measured again after a rest of 3 min and 3 hrs. 3 min after isometric exercise no statistically significant changes in BPS and BPD was observed. But clinically meaningful BPS decrease was observed and confirmed by subgroup analysis with decrease in BPS among prehypertensive subjects. 3 hrs after isometric exercise BPS and BPD were significantly reduced and the decrease in BPS was also clinically meaningful. Subgroup findings showed among normotensive significant and clinically meaningful reduction in BPS and BPD, respectively, as well as clinically meaningful reduction in BPS among prehypertensive subjects. According to this study we suggest that isometric handgrip training could be considered as BP lowering training method.