Miracle-dz/UniFAR-FTUs huggingface dataset:
Outage based power allocation for a lossy forwarding two-relaying system

The extension of Decode-and-Forward (DF) relaying by lossy forwarding has the potential to ensure a reliable multi-hop message transport in wireless mesh networks. Unlike in conventional DF relaying, with lossy forwarding a relay forwards a message regardless whether errors have been detected after decoding. At the destination, a proper joint decoding technique exploits the high correlation of messages received via different network paths. According to the Slepian-Wolf correlated source coding theorem a performance improvement compared with the conventional DF relaying can be expected. The performance can be optimized by a power allocation scheme that distributes the total transmit power budget between source and relay nodes. This paper analyzes the outage probability (OP) based on the Slepian-Wolf source correlation theorem for a system with two relays and designs a power allocation scheme to minimize the OP. The proposed scheme reduces the OP by up to 1.5 orders of magnitude compared to the reference case of equal power allocation. We also compare the performance gain of a system with two relays against the case with a single relay for the same total transmit power budget. Results show a reduction of the OP of at least one and up to two orders of magnitude.
Greenbot : A Solar Autonomous Robot to Uproot Weeds in a Grape Field

Greenbot, an initial step towards automation of agricultural practices in India, is an autonomous robot that is designed solely to help farmers by identifying the weeds automatically and uprooting them from the agricultural field, especially grapevine field. The power source for this robot is provided through a solar panel along with a rechargeable battery, making it an environment friendly device. The primary actuator of the proposed system is a high speed blade known as a "Rotavator" that uproots the weed and buries it back into the soil from where it is uprooted. Weed identification through image processing techniques, controlling the rotavator based on image processing output and guiding navigation through Global Positioning System (GPS) and obstacle identification sensor are the important components of the proposed intelligent system. Raspberry Pi 2 board is used to implement these components, which is based on Broadcom BCM2836 SoC and includes a quad-core Cortex-A7 CPU running at 900 MHz and 1 GB RAM using Windows 10 IOT core. MATLAB software is used to implement the system.
A Content Analysis of Research on Masculinity Ideologies Using All Forms of the Male Role Norms Inventory (MRNI)

Since its development in the late 1980s, the Male Role Norms Inventory (MRNI) and related forms have been used in 91 studies to examine masculinity ideologies through male role norms in the United States and other countries with over 30,000 participants. The study of male role norms and masculinity ideologies has remained a prominent area of study in the psychology of men and masculinities since at least 1995. Since the last formal review of the MRNI in 2007, 2 new forms of the MRNI have been developed, including short form and adolescent versions, and various forms of the measure have been used in at least 70 additional studies. After describing the development and psychometric properties of the MRNI, this article reports the results of a content analysis of all studies on male role norms using the MRNI in all forms, describing sample demographics, methodologies, topics, and findings. Results of the present study show the MRNI has been used to investigate men’s psychological, physical, and sexual health, romantic relationships, quality of friendships, and vocational decisions. The MRNI has also been utilized in examining negative attitudes toward People of Color and sexual minority and gender nonconforming men. This content analysis also highlights understudied areas such as body image, sports, religiousness/spirituality, and fatherhood. Finally, it calls for more representative samples in terms of ethnic, racial, sexual orientation, and gender diversity. Implications for clinical applications of previous findings are discussed and recommendations for further investigating male role norms and masculinity ideologies research are presented.
Slipping through the cracks: teachers who miss out on early career support

ABSTRACT This paper presents evidence from a nationally representative sample of early career teachers about those likely to miss out on formal support, and the employment conditions associated with this absence of support. It uses survey data from the Staff in Australia’s Schools Survey. Consistent with existing research, our results suggest a relationship between early career teachers with insecure employment and a lack of support. The findings suggest that, for early career teachers, being unsupported is associated with dissatisfaction with professional relationships and career opportunities; and that this dissatisfaction is associated with an intention to leave the profession.
A new normal? Competing national cultural discourses and workers’ constructions of identity and meaningful work in Norway

ABSTRACT We examine how conceptions of identity and meaningful work are influenced by a nation's changing economic and political environment. We collected research in Norway – a country with a rich economy that has heavily relied upon oil production since the 1980s. Yet depleting oil resources are prompting an economic transformation. Twenty-seven interviews and a thematic analysis revealed how Norwegian workers safeguarded their traditional, collective workplace values, yet were simultaneously confronted with modern – more masculinized – workplace performances ushered in with the oil era. We contribute to theory by suggesting that work's meaningfulness is constructed by competing national cultural discourses that evolve over time. These discourses become narratives that citizens draw upon to evaluate work and to negotiate their personal and professional identities.
ARQ with Subcarrier Assignment for OFDM Systems

We consider an automatic-repeat-request (ARQ) scheme in OFDM systems. When a transmission fails, the transmitter repeats the data symbols in the retransmission, but on different subcarriers. The receiver then performs maximal- ratio combining (MRC) on the data symbols in the original and ARQ transmissions, before symbol detection is carried out. Our goal is to determine subcarrier assignment of the data symbols in the retransmission, such that utility functions which determine system-level performances are maximized. We show that when the utility function is Schur concave, the optimum solution is to assign the ARQ subcarrier with the largest SNR to the original subcarrier with the smallest SNR. Further, we propose heuristic solutions when some imposed constraints are relaxed.
The Cosmological Parameters H0 and Ω0

The first section discusses a recalibration of the luminosity–linewidth technique and its use in a determination of H0. The recalibration introduces (i) new cluster calibration data, (ii) new corrections for reddening as a function of inclination, and (iii) a new zero-point calibration using 13 galaxies with distances determined via the cepheid period–luminosity method. It is found that H0 = 82 ± 16 km s −1 Mpc (95% confidence).
AVOIDANCE OF PARTIALLY ORDERED PATTERNS OF THE FORM k-σ-k

Sergey Kitaev [4] has shown that the exponential generating function for permutations avoiding the generalized pattern σ-k, where σ is a pattern without dashes and k is one greater than the largest element in σ, is determined by the exponential generating function for permutations avoiding σ. We show that the exponential generating function for permutations avoiding the partially ordered pattern k-σ-k also is determined by the exponential generating function for permutations avoiding σ. Avoidance of k-σ-k is equivalent to simultaneous avoidance of (k + 1)-σ-k and k-σ-(k + 1). Using this we construct a bijection between bicolored set partitions and permutations avoiding the pattern 3-12-3, and a bijection between Dowling lattices and permutations avoiding the pattern 3-121-3.
Experimental results for a Successive Detection Log Video Amplifier in a single-chip frequency synthesized radio frequency spectrum analyzer

The scarcity of available frequency spectrum continues to motivate the development of new radio systems capable of adapting to local conditions. One approach to identifying available frequency spectrum is to employ an on-chip radio-frequency spectrum analyzer. In particular, the present article addresses the design of an experimental Successive Detection Log Video Amplifier (SDLVA) to generate logarithmic output in a frequency-synthesized single-chip spectrum analyzer. The SDLVA design includes feedback compensation for dc offset error, and is tailored to accommodate the zero-IF architecture of the spectrum analyzer without the need for large off-chip capacitors. The SDLVA was designed and fabricated in 0.5 micron CMOS. Experimental results for the SDLVA are presented showing approximately 40 dB dynamic range. Results are also given for the overall spectrum analyzer integrated circuit showing SDLVA operation for a 200 MHz spectral sweep.
Development of "Souryu-III": connected crawler vehicle for inspection inside narrow and winding spaces

We have developed Souryu-I and II, connected crawler vehicles that travel in the rubble. They were developed for the purpose of finding survivors trapped in collapsed buildings. We have identified problems of these machines through experiments and studies, which are shape of the crawler, joint mechanism, dust- and waterproofing and communication system. We developed an improved model called Souryu-III based on these findings. It has unitized crawlers, new joint mechanism, dust proofing and waterproofing mechanism and tethered communication system with a new reel mechanism in order to address those problems. This paper describes Souryu-III, its mechanism and the experiments to test its mobile performance.
Programmed Cell Death Protein 4 Down-regulates Y-Box Binding Protein-1 Expression via a Direct Interaction with Twist 1 to Suppress Cancer Cell Growth

Programmed cell death protein 4 (PDCD4) has recently been shown to be involved in both transcription and translation, and to regulate cell growth. However, the mechanisms underlying PDCD4 function are not well understood. In this study, we show that PDCD4 interacts directly with the transcription factor Twist1 and leads to reduced cell growth through the down-regulation of the Twist1 target gene Y-box binding protein-1 (YB-1). PDCD4 interacts with the DNA binding domain of Twist1, inhibiting its DNA binding ability and YB-1 expression. Immunohistochemical analysis showed that an inverse correlation between nuclear PDCD4 and YB-1 expression levels was observed in 37 clinical prostate cancer specimens. Growth suppression by PDCD4 expression was completely recovered by either Twist1 or YB-1 expression. Moreover, PDCD4-overexpressing cells are sensitive to cisplatin and paclitaxel but not to etoposide or 5-fluorouracil. In summary, PDCD4 negatively regulates YB-1 expression via its interaction with Twist1 and is involved in cancer cell growth and chemoresistance. [Cancer Res 2009;69(7):3148–56]
Microsaccadic Efficacy and Contribution to Foveal and Peripheral Vision

Our eyes move constantly, even when we try to fixate our gaze. Fixational eye movements prevent and restore visual loss during fixation, yet the relative impact of each type of fixational eye movement remains controversial. For over five decades, the debate has focused on microsaccades, the fastest and largest fixational eye movements. Some recent studies have concluded that microsaccades counteract visual fading during fixation. Other studies have disputed this idea, contending that microsaccades play no significant role in vision. The disagreement stems from the lack of methods to determine the precise effects of microsaccades on vision versus those of other eye movements, as well as a lack of evidence that microsaccades are relevant to foveal vision. Here we developed a novel generalized method to determine the precise quantified contribution and efficacy of human microsaccades to restoring visibility compared with other eye movements. Our results indicate that microsaccades are the greatest eye movement contributor to the restoration of both foveal and peripheral vision during fixation. Our method to calculate the efficacy and contribution of microsaccades to perception can determine the strength of connection between any two physiological and/or perceptual events, providing a novel and powerful estimate of causal influence; thus, we anticipate wide-ranging applications in neuroscience and beyond.
eb 2 00 7 Quantum gate entangler for general multipartite systems

We construct quantum gate entangler for general multipartite states based on topological unitary operators. We show that these operators can entangle quantum states if they satisfy the separability condition that is given by the complex multi-projective Segre variety. We also in detail discuss the construction of quantum gate entangler for higher dimensional bipartite and three-partite quantum systems.
A NEW COMPUTATIONALLY EFFICIENT STOCHASTIC APPROACH FOR BUILDING RECONSTRUCTION FROM SATELLITE DATA

We present a 3D building reconstruction method from satellite images based on a stochastic approach. It consists in reconstructing buildings by assembling simple urban structures extracted from a library o f 3D parametric models, as a LEGO R game. Such a method is particularly well adapted to data of average quality such as high resolution satellite images. The approach is based on a density formulation defined within a Bayesian framework. The configuration whic h maximizes this density is found using a RJMCMC sampler which is efficient w.r. t. the multiple parametric object recognition problem. Experimental results are shown on complex buildings and dense urban areas using PLEIADES simulations.
Maximum power-up current estimation in combinational CMOS circuits

The continuing decrease in feature size and increase in chip density is causing leakage current to be a major contributor to power dissipation in integrated circuits. A viable approach to the reduction of leakage current is to use power cut-off or gating techniques. In power gating, a PMOS sleep transistor is used to turn-on or turn-off the Vdd source to the circuit block. In combinational circuits, the maximum power up current depends only on the input vector that wakes up the circuit from its sleep mode. In this work, we formulate the problem of estimating the maximum power-up current as an integer linear programming (ILP) problem and use advanced Boolean satisfiability (SAT) and generic ILP solvers. Results indicate that generic ILP solvers are very useful in estimating the maximum power-up current
Hybrid Coarrays: a PGAS Feature for Many-Core Architectures

Accelerators such as NVIDIA GPUs and Intel MICs are currently provided as co-processor devices, usable only through a CPU host. For Intel MICs it is planned that this constraint will be lifted in the near future: CPU and accelerator(s) will then form a single, many-core, processor capable of peak performance of several Teraflops with high energy efficiency. In order to exploit the available computational power, the user will be compelled to write a code more “hardware-aware”, in contrast to the common philosophy of hiding hardware details as much as possible. The simple two-sided communication approach often used in message-passing applications introduces synchronization costs that may limit the performance on the next generation machines. PGAS languages, like coarray Fortran and UPC, propose a one-sided approach where a process accesses directly the remote memory of another process without interrupting its execution. In this paper, we propose a CUDA-aware coarray implementation, capable of merging the expressive syntax of coarrays with the computational power of GPUs. We propose a new keyword for the Fortran language, which allows the user to map with a high-level syntax some hardware features of the many-core machines. Our hybrid coarray implementation is based on OpenCoarrays, the coarray transport layer currently adopted by the GNU Fortran compiler.
Multi-Ethnic Analysis of Lipid-Associated Loci: The NHLBI CARe Project

Background Whereas it is well established that plasma lipid levels have substantial heritability within populations, it remains unclear how many of the genetic determinants reported in previous studies (largely performed in European American cohorts) are relevant in different ethnicities. Methodology/Principal Findings We tested a set of ∼50,000 polymorphisms from ∼2,000 candidate genes and genetic loci from genome-wide association studies (GWAS) for association with low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglycerides (TG) in 25,000 European Americans and 9,000 African Americans in the National Heart, Lung, and Blood Institute (NHLBI) Candidate Gene Association Resource (CARe). We replicated associations for a number of genes in one or both ethnicities and identified a novel lipid-associated variant in a locus harboring ICAM1. We compared the architecture of genetic loci associated with lipids in both African Americans and European Americans and found that the same genes were relevant across ethnic groups but the specific associated variants at each gene often differed. Conclusions/Significance We identify or provide further evidence for a number of genetic determinants of plasma lipid levels through population association studies. In many loci the determinants appear to differ substantially between African Americans and European Americans.
Variation in Functional Independence among Stroke Survivors Having Fatigue and Depression

Objective. This study evaluated variation in functional independence in activities of daily living (ADL) and instrumental activities of daily living (IADL) among individuals with poststroke fatigue (PSF) and poststroke depression (PSD). Methods. A cross-sectional survey involved 65 consenting poststroke survivors who were purposively recruited from physiotherapy clinics of the University College Hospital, Ibadan, Adeoyo Maternity Teaching Hospital, Ibadan, and Federal Medical Center, Gusau. Participants were assessed for symptoms of PSD with short geriatric depression scale-15, PSF with fatigue severity scale, ADL with Barthel Index and IADL with Nottingham extended ADL scale. Data analysis was done using Chi-square and unpaired t-test with significance level being 0.05. Results. Participants' age ranged from 58 to 80 years. PSD alone (P = 0.002) and both PSF and PSD (P = 0.02) were significantly associated with ADL, while PSF alone was not (P = 0.233). PSD alone (P = 0.001) and both PSF and PSD (P = 0.001) significantly negatively affected IADL, while PSF alone had no significant effect (P = 0.2). Conclusions. Participants with PSD alone and those with both PSF and PSD had lower functional independence in ADL and IADL.
Strengthening Sustainability Leadership Competencies through University Internships.

This paper aims to determine whether high school students can become agents of change in their local communities by participating in a formal internship program implemented through a partnership between academia (high schools and universities), nonprofit organizations and key community stakeholders. ,Pre- and post-assessments, activity journals and on-line interviews are used to measure the impact of internships on high school students’ sustainability leadership, using a train-the-trainer intervention led by university interns. A conceptual problem-solving framework is proposed and empirically tested to explore the linkages between complex problem constellations, sustainability transition strategies and sustainability visions. ,The five core leadership competencies (systems thinking, strategic, anticipatory, normative and interpersonal) may not be as uniquely discrete as suggested in the literature. An effective learning experience depends on students’ developing competence in their ability to implement a strategic intervention, which is better acquired through hands-on experience rather than a classroom setting. ,Students need experiential learning outside of the classroom to make sustainability come alive as a viable option for their communities. ,The principles of social responsivity, engagement, experiential learning, capacity-building and entrepreneurialism can be executed by transforming the campus into a learning lab, which includes the local community. ,This study empirically demonstrates that students need involvement in strategic interventions to imagine and conceptualize sustainability visions. It also shows how academia can help fulfill the United Nations sustainable development goals.
Quality assessment of chronologies in Latin American pollen records: a contribution to centennial to millennial scale studies of environmental change

The newly updated inventory of the Latin American Pollen Database (LAPD) offers an important overview of data available for multi-proxy and multi-site purposes. However, heterogeneous paleoecological databases are not suitable to be integrated without an uncertainty assessment of existing chronologies. Therefore, we collected all chronological control points and age model metadata from the LAPD literature to create a complementary chronological database of 5116 dates from 1097 pollen records. We start with an overview on chronological dating and reporting in Central and South America. Specific problems and recommendations for chronology reporting are discussed. Subsequently, we implement a temporal quality assessment of pollen records from northwest South-America to support research on climate forcers and responses at a centennial-millennial time-scale. New chronologies are generated for 233 pollen records based on updated calibration curves. Different time windows are discussed on sample resolution and temporal uncertainty. Approximately one in four pollen diagrams depicts < 500 years resolution data at the Younger Dryas/Holocene transition. Overall, our analyses suggest that the temporal resolution of multi-site syntheses of late Pleistocene fossil pollen records in the northwest South-America is ca. 240 years, a resolution which allows analysis of ecological responses to centennial-millennial-scale climate change during the last deglaciation.
Small circularly polarized implantable antennas

This paper presents two types of compact circularly polarized (CP) implantable antennas for Industrial, Scientific, and Medical (ISM) (2.4-2.48 GHz) biomedical applications. The simulated antenna performance inside a human body environment (one-layer skin) includes impedance bandwidth, axial ratio (AR) bandwidth, and radiation are compared and discussed. The dimensions of proposed CP patch antenna and helical antenna are 10×10×1.27 mm3 and π×(5.5)2×3.048 mm3, respectively. The performance of communication link between implantable antennas and external CP antenna and linearly polarized (LP) antenna is also discussed.