Miracle-dz/UniFAR-FTUs huggingface dataset:
Drive test measurement be tween Maxis 2G and 3G networks in Uitm Shah Alam campus

In telecommunications, Received Signal Strength (RSS) defines as a measurement of the power present in a received radio signal. Users are likely to expect uninterrupted, efficient and stable service starting from the day their subscribe into the network. For these reasons, in order to provide uninterrupted service, it is required to do the performance testing. The main focus of research in this paper is to analysing the captured data of RSS and signal quality of Maxis network provider in the campus of UiTM Shah Alam. As everyone knows, Maxis is one of the Malaysia's biggest integrated communications that provides a variety of mobile communication products and services. So, it is necessary for the Maxis provider to provide a good and less disruption service to the users since it is one of top service network provider in Malaysia. This research is done by using the NEMO Handy device as the tools and methods for the test drive measurement and the data collected then being analysed by using the software named NEMO Outdoor 6. The measurement is taken in the morning, afternoon and evening in three fine days and one data collection in raining day to see any variation in the RSS at different times and different conditions. From the result obtained, the best performance of RSS for Maxis network provider in UiTM Shah Alam Campus is 3G networks and for signal quality, 2G network has a better performance compared to 3G network.
Comparison of the Peripheral Reactive Hyperemia Index with Myocardial Perfusion Reserve by 82Rb PET/CT in HIV-Infected Patients

After the introduction of antiretroviral therapy (ART) the life expectancy of patients infected with human immunodeficiency virus (HIV) is now approaching that of the general population and the importance of non-AIDS co-morbidities is increasing. Specifically, the risk of coronary artery disease (CAD) seems to be higher in HIV-infected patients and an accurate risk prediction of CAD is of high importance for optimal long term treatment. In this study, we assessed the correlation of the endoPAT, which is an office-based CVD screening tool with the myocardial perfusion reserve by 82-rubidium PET/CT. We measured the reactive hyperemia index, which is a measure of the endothelial responsiveness, by the use of an endoPAT device (Itamar Medical, Caesarea, Israel) in 48 ART treated HIV-infected patients with high CD 4 cell counts and viral suppression (HIV-RNA < 20 copies/mL), who had previously undergone measurement of the myocardial perfusion reserve by 82-rubidium PET/CT for study purposes. We found an inverse correlation between the reactive hyperemia index and the myocardial perfusion reserve which most likely indicates different vascular physiology. This study did not find evidence to suggest the immediate implementation of the reactive hyperemia index as a screening tool for early coronary artery disease in well-treated HIV-infected patients pending further validation in larger prospective studies.
Social and Professional Support for Parents of Adolescents with Severe Intellectual Disabilities

Background: Previous research has identified various dimensions of social support that are positively associated with parental well-being. However, most research does not include multiple measures of social support and uses heterogeneous samples in terms of child characteristics such as age and severity of intellectual disability. Methods: Thirty-three parents of adolescent children with moderate–profound intellectual disabilities completed measures of parental well-being (stress, anxiety and depression, and caregiving satisfaction), social support (informal and formal sources, and practical and emotional support), and child characteristics (adaptive and problem behaviours). Results: Correlation analyses showed that parental well-being was associated with the child's adaptive and problem behaviours and with the child's autism diagnosis. Parents’ ratings of the helpfulness of informal sources of support (spouse, extended family, friends, etc.) was most reliably associated with parental well-being, and remained so after controlling for child characteristics. Parents’ access of service and professional support was not associated with parental well-being, but there was some evidence that it was related to their child's needs. Conclusions: The research emphasizes the significance of including multiple measures of social support in research with families of children with an intellectual disability. Furthermore, the possibility that parents, during their child's adolescence, may be especially vulnerable to the disruption of their informal support networks is an important practical consideration.
Information transmission in the primary visual cortex of retinal degenerated rats

To study the information transmission in the primary visual cortex (V1) of retinal degenerated (RD) models, wild type (WT) and RD rats were used in the experiments. The neural response in V1 was recorded extracellularly while the flicker with varied intensity levels was given as the visual stimulus. The mutual information (MI) and normalized mutual information (NMI) were determined for every isolated neuron, in order to quantify the amount and efficiency of information transmission in V1 of both control and experimental groups. The results showed that, on one hand, the RD group manifested relatively decreased information transmission amount and efficiency, comparing to the control group; On the other hand, it also implied that even for the RD rat, whose early stage of visual system was impaired, the later parts of visual system, especially the primary visual cortex, were still able to capture the information on visual stimulation, thus they can be utilized for restoring the visual ability, for example, via the visual prosthesis. In addition, it certainly requires more experiments for testifying and extending those results and implications.
Does Spike-Timing-Dependent Synaptic Plasticity Couple or Decouple Neurons Firing in Synchrony?

Spike synchronization is thought to have a constructive role for feature integration, attention, associative learning, and the formation of bidirectionally connected Hebbian cell assemblies. By contrast, theoretical studies on spike-timing-dependent plasticity (STDP) report an inherently decoupling influence of spike synchronization on synaptic connections of coactivated neurons. For example, bidirectional synaptic connections as found in cortical areas could be reproduced only by assuming realistic models of STDP and rate coding. We resolve this conflict by theoretical analysis and simulation of various simple and realistic STDP models that provide a more complete characterization of conditions when STDP leads to either coupling or decoupling of neurons firing in synchrony. In particular, we show that STDP consistently couples synchronized neurons if key model parameters are matched to physiological data: First, synaptic potentiation must be significantly stronger than synaptic depression for small (positive or negative) time lags between presynaptic and postsynaptic spikes. Second, spike synchronization must be sufficiently imprecise, for example, within a time window of 5-10 ms instead of 1 ms. Third, axonal propagation delays should not be much larger than dendritic delays. Under these assumptions synchronized neurons will be strongly coupled leading to a dominance of bidirectional synaptic connections even for simple STDP models and low mean firing rates at the level of spontaneous activity.
Effects of Imperfect Manufacturing Process on Electromagnetic Performance and Online Interturn Fault Detection in PMSMs

This paper deals with the consequences of some manufacturing imprecision related to the use of a fractional-slot concentrated winding (FSCW) in recent permanent-magnet synchronous machine (PMSM) designs. Although these topologies improve the efficiency of motors, they also lead to consider complex models, including undesirable harmonics, which can be strongly different from classical models expressed in a rotating frame. This may affect the control and the monitoring techniques used to detect some commonly reported faults such as turn short-circuit faults in the windings. Thus, adaptations are needed to improve classical fault detection methods. This paper considers an undesirable additional air gap, due to an imperfect manufacturing process, between the stator back iron and the teeth of a modular PMSM having an FSCW. A finite-element method and permeance network modeling are used to study the behavior of the machine. Good agreement is obtained between the two methods, validating the significant effects of such manufacturing faults on the behavior of the machine. Experimental tests confirm the occurrence of additional air gaps and their consequences on some classical interturn fault detection methods. Improvements are also proposed in order to consider relevant indicators even in the presence of inherent manufacturing faults.
Cultural Consumption Analysis: Beyond Structure and Agency

The objective of this article is to explain visits to arts institutions by merging two theoretical perspectives that are generally regarded as antithetical, the model of the human being as homo sociologicus, and the model of the human being as homo oeconomicus. This article demonstrates that visits to arts institutions cannot be explained either by structural conditions or by individual choice alone, but by a combination of both. I demonstrate this by combining Bourdieu’s theory of practice and Giddens’ structuration theory to produce a reconciled model of an agency-structure-feedback loop, applying this model to analyse the societal significance of museums and museum visits. The reciprocal relationship of structure and agency connects Giddens’ agency-driven museum visitor with Bourdieu’s structure-driven museum visitor.This case of museum analysis shows that an agency-structure polarity does not reflect reality. Neither do museums (structure) fully determine museum visitors (agency) nor do museum visitors fully determine museums (structure).
Because Words Are Not Enough: Latina Re-Visionings of Transnational Collaborations Using Health Promotion for Gender Justice and Social Change

This essay suggests that U.S. Latina immigrants working in feminist health promotion can make a distinctive contribution to transnational and transversal approaches to feminist activism while remaining associated with global third-world feminisms through nation of origin connections. The author, a Cuban American who served as coordinating editor of Nuestros Cuerpos, Nuestras Vidas (NCNV), the Spanish cultural adaptation of Our Bodies, Ourselves (OBOS), uses concepts from border-crossing and U.S. third-world feminisms to demonstrate how including U.S. Latina perspectives helped re-vision the text's relationship to transnational feminist movements. She describes the ways U.S. Latina and Latin American/Caribbean feminisms share approaches to grassroots organizing, but have different "cultures of politics," linking individual women, activist organizations, and global movements for gender justice and social change. She highlights the meaningful role of Puerto Rican and Caribbean feminisms as transnational travelers and pivotal guides for expanding our understanding of effective strategies linking local and global, as well as North and South. She concludes with strategies for expanding collaborations between U.S. Latinas and Latin American/Caribbean feminists, highlighting opportunities for scholar/activists working for reproductive justice as part of broader movements for social change.
On an iterative method for basis pursuit with application to echo cancellation with sparse impulse responses

Basis pursuit has been shown to be an effective method of solving inverse problems with a small amount of data when the system to be determined has a sparse representation. Adaptive filters fall under this general category of problems. Here, we use the echo cancellation context to introduce a method of solving the basis pursuit problem with an iterative method based on the proportionate normalized affine projection algorithm (PAPA). Earlier, it has been shown that PAPA can be derived from a basis pursuit perspective. Here we refine the assumptions made in those derivations and show that an iterative form of PAPA yields the same results as basis pursuit without resorting to the simplex method. The resulting algorithm has extremely fast convergence for adaptive filters with very sparse impulse responses. Simulations using the new iterative approach are also presented.
A multi-band loaded semi-ring MIMO antenna

Miniaturized multiple-input-multiple-output (MIMO) antennas with multiband operation are highly desirable to provide high data throughput and coverage in handheld devices. This paper presents a two element semi-ring multiband compact MIMO antenna having a total size of 32×38×0.76mm3. The natural high input impedance of the semi-ring is matched by a gap loaded capacitance along with double stub matching provided by the inner half ring. The antenna can cover both 1.8GHz and 2.4GHz bands with efficiencies of 43% and 54.4%, respectively. The gains at the two bands were 0.34dB and 1.56dB, respectively. The antenna is optimized for isolation and can provide isolation more than 20dB.
Fibers of reduced graphene oxide nanoribbons

Reduced graphene oxide nanoribbon fibers were fabricated by using an electrophoretic self-assembly method without the use of any polymer or surfactant. We report electrical and field emission properties of the fibers as a function of reduction degree. In particular, the thermally annealed fiber showed superior field emission performance with a low potential for field emission (0.7 V µm−1) and a giant field emission current density (400 A cm−2). Moreover, the fiber maintains a high current level of 300 A cm−2 corresponding to 1 mA during long-term operation.
Climate fraud and carbon colonialism: the new trade in greenhouse gases

To understand the impact of “pollution permits” and “emissions trading” on the ecological crisis, the findings of the international scientific community must be noted. The Intergovernmental Panel on Climate Change (IPCC), a UN advisory body numbering 3,000 scientists, concluded in 2001 that “the present CO2 concentration has not been exceeded during the past 420,000 years and likely not during the past 20 million years. ” The clear and alarming consensus in the scientific community is that humankind is wreaking havoc on the atmosphere. Across the world 80 million people are at severe risk of their homes and livelihoods being destroyed by flash flooding as sea levels rise, fed by melting icecaps, and extreme weather events become more frequent. Although these weather changes will occur everywhere, poorer countries will have less ability to adapt. Meanwhile the emissions of greenhouse gases, that are creating the problems, come overwhelmingly from the richer industrialized countries that do have the resources to adapt. For example the US and the EU, with only 10 percent of the world’s population, are responsible for producing 45 percent of all emissions of carbon dioxide (CO2), the principle greenhouse gas. 3
Comparative Analysis of the Sequences and Three-Dimensional Models of Human Procarboxypeptidases A1, A2 and B

A full-length cDNA clone for preprocarboxypeptidase B from human pancreas has been isolated and sequenced. The open reading frame is 1254 bp in length, encoding a protein of 417 amino acids that includes a leader signal peptide of 15 amino acids and a 95-amino acid-long pro-segment. It contains two differences when compared to the sequence reported for pancreas-specific protein, a human serum marker for acute pancreatitis identified as procarboxypeptidase B. The main difference is a previously unreported Cys at position 138, which is needed for the formation of one of the three disulphide bridges. Sequence alignments between human procarboxypeptidases A1, A2 and B and other known forms show that the most conserved region is the enzyme moiety followed by the globular domain of the pro-segment. The maximum variability is found in the connecting region between moieties. The known three-dimensional structures of procarboxypeptidases from bovine and porcine species have been used to model all three human procarboxypeptidases and also to estimatethe interaction energies between the different parts of the molecules, in an attempt to gain insight into the structural features responsible for the differences observed in the functionality of the proenzymes, particularly in their proteolytic activation pathways. Taken together, the results obtained confirm that the main determinant for the rate and mode of activation of procarboxypeptidases is the strength of the interaction between the enzyme and the globular domain of the pro-segment, the connecting segment playing a complementary role.
Androgen receptor-mediated non-genomic regulation of prostate cancer cell proliferation

Androgen receptor (AR)-mediated signaling is necessary for prostate cancer cell proliferation and an important target for therapeutic drug development. Canonically, AR signals through a genomic or transcriptional pathway, involving the translocation of androgen-bound AR to the nucleus, its binding to cognate androgen response elements on promoter, with ensuing modulation of target gene expression, leading to cell proliferation. However, prostate cancer cells can show dose-dependent proliferation responses to androgen within minutes, without the need for genomic AR signaling. This proliferation response known as the non-genomic AR signaling is mediated by cytoplasmic AR, which facilitates the activation of kinase-signaling cascades, including the Ras-Raf-1, phosphatidyl-inositol 3-kinase (PI3K)/Akt and protein kinase C (PKC), which in turn converge on mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinase (ERK) activation, leading to cell proliferation. Further, since activated ERK may also phosphorylate AR and its coactivators, the non-genomic AR signaling may enhance AR genomic activity. Non-genomic AR signaling may occur in an ERK-independent manner, via activation of mammalian target of rapamycin (mTOR) pathway, or modulation of intracellular Ca2+ concentration through plasma membrane G protein-coupled receptors (GPCRs). These data suggest that therapeutic strategies aimed at preventing AR nuclear translocation and genomic AR signaling alone may not completely abrogate AR signaling. Thus, elucidation of mechanisms that underlie non-genomic AR signaling may identify potential mechanisms of resistance to current anti-androgens and help developing novel therapies that abolish all AR signaling in prostate cancer.
Les conséquences des allégements généraux de cotisations patronales sur les bas salaires

Les allegements generaux de cotisations patronales sur les bas salaires constituent la principale politique de l’emploi en France avec une depense annuelle d’environ 1 point de PIB. Cette etude montre que ce sont surtout les emplois les moins qualifies dans les services qui beneficient aujourd’hui de ce dispositif. Selon nos estimations, supprimer les allegements lies aux 35 heures detruirait environ 400 000 emplois, instituer un point de sortie a 1,5 au lieu de 1,6 Smic supprimerait environ 50 000 emplois, limiter les allegements a l’industrie entrainerait une perte de l’ordre de 700 000 emplois, et limiter les allegements aux entreprises de moins de 50 salaries supprimerait environ 380 000 emplois. Ainsi, du point de vue de la sauvegarde de l’emploi, il n’y a aucun fondement a reserver le benefice des allegements aux seuls secteurs directement exposes a la concurrence internationale, ou encore aux seules PME.
A Minus Sign That Used to Annoy Me But Now I Know Why It Is There (Two Constructions of the Jones Polynomial)

There are (at least) two well known constructions of link invariants. One uses skein theory: you resolve each crossing of the link as a linear combination of things that don’t cross, until you eventually get a linear combination of links with no crossings, which you turn into a polynomial. The other uses quantum groups: you construct a functor from a topological category to some category of representations, in such a way that (oriented framed) links get sent to endomorphisms of the trivial representation, which are just rational functions. Certain instances of these two constructions give rise to essentially the same invariants, but when one carefully matches them there is a minus sign that seems out of place. We will discuss exactly how the constructions match up in the case of the Jones polynomial, and where the minus sign comes from.
Robust occupancy inference with commodity WiFi

Accurate occupancy information of indoor environments is one of the key prerequisites for many pervasive and context-aware services, e.g. smart building/home systems. Some of the existing occupancy inference systems can achieve impressive accuracy, but they either require labour-intensive calibration phases, or need to install bespoke hardware such as CCTV cameras, which are privacy-intrusive by default. In this paper, we present the design and implementation of a practical end-to-end occupancy inference system, which requires minimum user effort, and is able to infer room-level occupancy accurately with commodity WiFi infrastructure. Depending on the needs of different occupancy information subscribers, our system is flexible enough to switch between snapshot estimation mode and continuous inference mode, to trade estimation accuracy for delay and communication cost. We evaluate the system on a hardware testbed deployed in a 600m2 workspace with 25 occupants for 6 weeks. Experimental results show that the proposed system significantly outperforms competing systems in both inference accuracy and robustness.
The Contingent Influence of Organizational Capabilities on Proactive Environmental Strategy in the Service Sector: An Analysis of North American and European Ski Resorts

Our study of 134 North American and European ski resorts examines the infl uence of externally focused organizational capabilities on the generation of proactive environmental strategies under contingent effects of uncertainty in the general business environment. We fi that the capabilities of strategic proactivity and continuous innovation are associated with proactive environmental strategies. Managerial perceptions of uncertainty in the general business environment moderate the deployment of the capability of continuous innovation at all levels of uncertainty and stakeholder engagement at low and average levels of uncertainty. The study contributes to the resource-based view (RBV) by illuminating an important contingency under which capabilities are likely to be deployed to generate a proactive corporate strategy. Copyright © 2007 ASAC. Published by John Wiley & Sons, Ltd.
Bias-correcting the realized range-based variance in the presence of market microstructure noise

Market microstructure noise is a challenge to high-frequency based estimation of the integrated variance, because the noise accumulates with the sampling frequency. This has led to widespread use of constructing the realized variance, a sum of squared intraday returns, from sparsely sampled data, for example 5- or 15-minute returns. In this paper, we analyze the impact of microstructure noise on the realized range-based variance and propose a bias correction to the range-statistic. The new estimator is shown to be consistent for the integrated variance and asymptotically mixed Gaussian under simple forms of microstructure noise. We can select an optimal partition of the high-frequency data in order to minimize its asymptotic conditional variance. The finite sample properties of our estimator are studied with Monte Carlo simulations and we implement it using Microsoft high-frequency data from TAQ. We find that a bias-corrected range-statistic often leads to much smaller confidence intervals for the integrated variance, relative to the realized variance.