Miracle-dz/UniFAR-FTUs huggingface dataset:
Open-source implementation of an ad-hoc IEEE802.11a/g/p software-deﬁned radio on low-power and low-cost general purpose processors

This work proposes a low-cost and low-power software-defined radio open-source platform with IEEE 802.11 a/g/p wireless communication capability. A state-of-the-art version of the IEEE 802.11 a/g/p software for GNU Radio (a free and open-source software development framework) is available online, but we show here that its computational complexity prevents operations in low-power general purpose processors, even at throughputs below the standard. We therefore propose an evolution of this software that achieves a faster and lighter IEEE 802.11 a/g/p transmitter and receiver, suitable for low-power general purpose processors, for which GNU Radio provides very limited support; we discuss and describe the software radio processing structuring that is necessary to achieve the goal, providing a review of signal processing techniques. In particular, we emphasize the advanced reduced instruction set (RISC) machine (ARM) study case, for which we also optimize some of the processing libraries. The presented software will remain open-source.
Relationship between Employees’ Self-efficacy Belief and Role Stress: A Study

Abstract Self-efficacy beliefs provide the foundation for human motivation, well-being, personal accomplishments, and affect the body’s physiological responses to stress. The stronger the self-efficacy belief, the bolder the people are in handling the stressful situations associated with their roles. The present study assessed the level of self-efficacy belief of 80 employees randomly selected working in Himachal Pradesh Power Corporation Limited, Shimla. The differences in level of self-efficacy belief pertaining to the demographic variables of the employees have also been investigated. Further, the study also examined the different factors causing role stress among the employees, thereafter, relationship between self-efficacy belief and dimensions of role stress have been studied. The self-efficacy belief of employees has been noted to be high. However, the levels of self-efficacy belief among the males, unmarried, older and higher experienced employees have been found to be higher as compared to their counterparts. It was also observed that mean difference on self-efficacy belief has been found to be significant only between males and females. The findings have also revealed that the degree of role stress experienced by the employees has been noted to be less. Role erosion was identified as the main stressor while role ambiguity was found to cause least stress. A negative correlation was also found between self-efficacy belief and dimensions of role stress. The implications that arise from the present research findings are that as individual’s self-efficacy belief has been correlated with the experience of stress and role adjustments, it becomes important to focus on the methods and interventions such as verbal persuasions, vicarious modelling, etc. that increase the self-efficacy belief among individuals.
An Investigation of Patterns and Factors Associated with Exclusive Breast Feeding in Northern Ghana

Introduction: The main aim of this study was to assess the practice of exclusive breastfeeding (EBF) and explore its determinants in Tamale Metropolis, Northern Ghana. Methods: In this analytical cross-sectional study, systematic random sampling was used to select 355 mother- infant pairs between 0-6 months from among consenting mothers attending post natal care at the Tamale Teaching and West Hospitals in the Tamale Metropolis. Results: The prevalence of EBF among infants < 6 months in the Tamale Metropolis for the past 24 hours was 92.1 % but it was 75.5 % in the one month prior to the study. In logistic regression analyses, factors that had significant positive association with EBR were institutional delivery, current mother’s employment, maternal motivation and household wealth index. Compared to home delivery, women who delivered at a health institution were five times more likely to practice EBF (Adjusted odds ratio [AOR] = 5.17, CI: 2.45 – 10.90). Petty traders were four times more likely to exclusively breastfeed, compared to women who were unemployed (A OR = 4.05, CI: 1.93 – 8.51). EBF provided 80 % (Adjusted OR = 0.2, CI: 0.08-0.37) protection against chronic malnutrition whilst high household index reflecting socio-economic status provided only 10 % protection against chronic malnutrition in the study sample (Adjusted OR = 0.9, CI: 0.81- 0.98). Conclusion and Recommendation: Strategies that target improving knowledge and skills on lactation management among women, as well as strategies to improve health facility delivery especially among non-working mothers, may help to improve EBF in Northern Ghana.
Radio faint AGN: a tale of two populations

We study the Extended Chandra Deep Field South (E-CDFS) Very Large Array sample, which reaches a flux density limit at 1.4 GHz of 32.5 microJy at the field centre and redshift ~ 4, and covers ~ 0.3 deg^2. Number counts are presented for the whole sample while the evolutionary properties and luminosity functions are derived for active galactic nuclei (AGN). The faint radio sky contains two totally distinct AGN populations, characterised by very different evolutions, luminosity functions, and Eddington ratios: radio-quiet (RQ)/radiative-mode, and radio-loud/jet-mode AGN. The radio power of RQ AGN evolves ~ (1+z)^2.5, similarly to star-forming galaxies, while the number density of radio-loud ones has a peak at ~ 0.5 and then declines at higher redshifts. The number density of radio-selected RQ AGN is consistent with that of X-ray selected AGN, which shows that we are sampling the same population. The unbiased fraction of radiative-mode RL AGN, derived from our own and previously published data, is a strong function of radio power, decreasing from ~ 0.5 at P_1.4GHz ~ 10^24 W/Hz to ~ 0.04$ at P_1.4GHz ~ 10^22 W/Hz. Thanks to our enlarged sample, which now includes ~ 700 radio sources, we also confirm and strengthen our previous results on the source population of the faint radio sky: star-forming galaxies start to dominate the radio sky only below ~ 0.1 mJy, which is also where radio-quiet AGN overtake radio-loud ones.
Regional Differences and Similarities in the Personality of New Zealanders

The current study contributes to an emerging literature on regional differences in personality. We analyse data from a national probability sample of New Zealanders (N = 6,518) to examine differences and similarities in mean levels of Big-Six personality (Extraversion, Agreeableness, Conscientiousness, Neuroticism, Openness to Experience, and Honesty-Humility) across 63 geographical General Electorate Districts in New Zealand. Of these six core aspects of personality, only Honesty-Humility and Openness to Experience varied significantly across regions. Those from large cities (i.e., Auckland, Wellington, and Christchurch) were higher in Openness to Experience, whereas those from Palmerston North, and many regions of the South Island were higher in Honesty-Humility, relative to those living in other regions of New Zealand. However, regional differences explained only a trivial amount of variance in the two traits. This research speaks directly to anecdotes about regional differences across New Zealand, and shows that, for the most part, the strong regional similarities far outweigh alleged regional personality differences across the nation.
Welcome A Hidden Markov Model of Leverage Dynamics , Tail Risk , and Value-Momentum Correlation

Momentum strategies exhibit rare but dramatic losses (crashes), which we show are a result of the leverage dynamics of stocks in the momentum portfolio. When the economy is in a hidden turbulent state, associated with a depressed and volatile stock market, the short-side of the momentum portfolio becomes highly levered, and behaves like a call option on the market index portfolio, making momentum crashes more likely. We develop a hidden Markov model of the unobserved turbulent state that affects the joint returns of the momentum strategy and the market index portfolios. We find that the use of a combination of normal and Student’s t-distributions for the hidden residuals in the model to construct the likelihood of the realized momentum and market index returns dramatically improves the model’s ability to predict crashes. The same variable that forecasts momentum crashes also forecasts the correlation between momentum and value, two of the benchmark investment styles used in performance appraisal of quant portfolio managers. The correlation is negative only when the probability of the economy being in a turbulent state is high. The conditional correlation is zero otherwise, which is two thirds of the time. Half of the negative relationship between value and momentum is due to the leverage dynamics of stocks in the momentum portfolio. The other half is due to a hidden risk factor, likely related to funding liquidity identified in Asness et al. (2013), which emerges only when the economy is more likely to be in the turbulent state. We thank Torben Andersen, Raul Chhabbra, Randolph B. Cohen, Zhi Da, Gangadhar Darbha, Ian DewBecker, Francis Diebold, Robert Engel, Bryan T. Kelly, Robert Korajczyk, Jonathan Parker, Marco Sammon, Prasanna Tantri, Viktor Todorov, Lu Zhang, and the participants of seminars at the Becker-Friedman Institute Conference honoring Lars Hansen at the University of Chicago, the Fifth Annual Triple Crown Conference in Finance, Fordham University, the Indian School of Business, London Business School, London School of Economics, Nomura Securities, Northwestern University, the Oxford-Man Institute of Quantitative Finance, the Securities and Exchange Board of India, Shanghai Advance Institute for Finance, Shanghai Jiao Tong University, the SoFiE Conference, the University of Virginia, the WFA meetings, and the 2016 Value Investing Conference at Western University, for helpful comments on the earlier versions of the paper. Special thanks to Lu Zhang for providing us time series data on q-factor model. We alone are responsible for any errors and omissions. †Kent Daniel, Finance and Economics Division, Graduate School of Business, Columbia University and NBER; E-mail: kd2371@columbia.edu, Ravi Jagannathan, Finance Department, Kellogg School of Management, Northwestern University and NBER, ISB, SAIF; E-mail: rjaganna@kellogg.northwestern. edu, Soohun Kim, Finance Area, Georgia Institute of Technology; E-mail: soohun.kim@scheller.gatech. edu.
The Lifecycle of the Financial Sector and Other Speculative Industries

Speculative industries exploit novel technologies subject to two risks. First, there is uncertainty about the fundamental value of the innovation: is it strong or fragile? Second, it is difficult to monitor managers, which creates moral hazard. Because of moral hazard, managers earn agency rents in equilibrium. As time goes by and profits are observed, beliefs about the industry are rationally updated. If the industry is strong, confidence builds up. Initially this spurs growth. But increasingly confident managers end up requesting very large rents, which curb the growth of the speculative sector. If rents become too high, investors may give up on incentives, and risk and failure rates rise. Furthermore, if the innovation is fragile, eventually there is a crisis, and the industry shrinks. Our model thus captures important stylized facts of the financial innovation wave which took place at the beginning of this century.
Can habitable planets form in clustered environments

We present observational evidence of environmental effects on the formation and evolution of planetary systems. We combine catalogues of resolved protoplanetary discs (PPDs) and young stellar objects in the solar neighbourhood to analyse the PPD size distribution as a function of ambient stellar density. By running Kolmogorov-Smirnov tests between the PPD radii at different densities, we find empirical evidence, at the >97% confidence level, for a change in the PPD radius distribution at ambient stellar densities \Sigma > 10^{3.5} pc^{-2}. This coincides with a simple theoretical estimate for the truncation of PPDs or planetary systems by dynamical encounters. If this agreement is causal, the ongoing disruption of PPDs and planetary systems limits the possible existence of planets in the habitable zone, with shorter lifetimes at higher host stellar masses and ambient densities. Therefore, habitable planets are not likely to be present in long-lived stellar clusters, and may have been ejected altogether to form a population of unbound, free-floating planets. We conclude that, while highly suggestive, our results should be verified through other methods. Our simple model shows that truncations should lead to a measurable depletion of the PPD mass function that can be detected with ALMA observations of the densest nearby and young clusters.
Environmental Policy in an Integrated World Economy

This paper critically assesses the literature on the relationship between economic integration and the environment. In particular, we investigate how trade liberalization and capital market integration affect environmental policy and thus environmental quality. Conversely, we also study how environmental policy can be used to serve non-environmental (trade policy) goals. The interaction between economic integration and environmental policy is not only approached from a traditional social welfare maximizing perspective, but ? as a novelty ? also includes the emerging political-economic literature on this set of issues. This altered perspective leads us to substantially different results. Moreover, we present the substantial empirical evidence for both perspectives. This allows us to put the theoretical findings in perspective.
SCIENTIFIC RESEARCH AND EDUCATION IN THE AIR FORCE – AFASES2017 241 DETERMINING PERSONALITY PROFILE THROUGH INFERENTIAL METHOD BY EDA NEUROSIGNALS

The work shows an original psychophysiological approach in establishing a psychological profile by using an inferential fractal method of access to the neocortex by stimulating the phasic stage of epidermis. The mathematical model used in analysing the functions of psychophysiological inference may show the specifics of some behavioural styles associated with psychological typologies.
Rare-Earth-Doped Low Phonon Energy Halide Crystals for Mid-Infrared Laser Sources

Since ~15 years, solid state lasers emitting in bands II (2.7-4.3, 4.5-5.2 m) and III (8-14 m) of the atmosphere transparency spectral range are being developed for imaging, polluting species detection as well as military NRBC detection and optronic countermeasures. Because most of these applications require highly brilliant and/or important peak power laser sources, several RE3+-doped (RE=rare earth) low phonon energy (ħ<400 cm-1) chloride and bromide crystals, such as APb2X5 (A=K,Rb;X=Cl,Br) or CsCdBr3, stand out as promising laser gain media in the mid-infrared (MIR) spectral range [Doualan & Moncorge, 2003; Isaenko et al., 2008]. Indeed, these bulk crystals, transparent up to more than 18 m, could be used at room temperature and their emission lifetime-emission cross section product (EMR) at the laser wavelength is high enough to allow for energy storage and subsequent pulsed regime laser operation. Moreover, in these systems, the laser beam quality could be high even at high output powers.
The Dilemma and International Macroprudential Policy: Is Capital Flow Management Effective?

This paper provides empirical evidence that emerging market economies adjust capital flow management in response to U.S. monetary policy shocks. Using these shocks as exogenous instruments, we find that such adjustments cause changes to portfolio capital flows — in particular, a one standard deviation increase in the net number of inflow reducing measures reduces net portfolio inflows by two-fifths of a standard deviation. These findings provide support to the “Dilemma” literature, which recommend emerging market economies to use capital controls and other macroprudential policies to shield their financial markets and monetary policy autonomy from large and volatile flows brought about by global financial cycles.
Agrochemicals, Suicide Ideation and Social Responsibility

This paper examines agricultural advancement, agrochemical use, suicide ideation and social responsibility within the agriculture industry in Guyana. Suicide in Guyana is a serious public health problem. The country is ranked fourth in suicides per capita worldwide, with the highest rate amongst South American and Caribbean nations. Suicide is also ranked as the seventh of the ten major causes of death in Guyana. It is the leading cause of death among young people ages 15-24 and the third leading cause of death among persons ages 25-44. A mixed method was used, as documents were reviewed and thematic areas identified. The influence of locality and gender were both examined in this paper, as farmers in rural communities are engaged in both subsistence and commercial agricultural ventures. Some studies have shown a correlation between localities where there was an overexposure to agrochemicals and suicide ideation. Resultantly, the paper articulates that agricultural advancement must have a human face recognizing that the industry that is boosting Guyana’s economy is also contributing to the demise of a vital section of its populace. It proposes a tripartite process where all stakeholders –governments, the agrochemical industry and the consumers have a responsibility for furthering clinical research, and commit to a rigorous information, education and communication plan, which also fosters dialogue on the reduction of the dependency on agrochemicals. Highlighting education as a medium for change, the paper suggests that education needs to be more than the writings on labels and must be accompanied by enforceable protocols.
Survival and metamorphosis rate of swimming crab Portunus pelagicus larvae with the use of phytoecdysteroid in the artificial feed

ABSTRACT The survival rate of blue swimming crabs and the larval metamorphosis processes are still low in hatcheries. The objective of this study was to evaluate the effects of different phytoecdysteroids doses on both the survival and the rate of Blue swimmer crab larvae metamorphosis. The study consisted of four different phytoecdysteroids treatments, namely: control (0 mg/100 g of feed), 1 mg/100 g of feed, 2 mg/100 g of feed, and 4 mg/100 g of feed. Each treatment was replicated three times. The survival rate of the larvae was analyzed through analysis of variance, while the rate of larval metamorphosis was descriptively analyzed. The results showed that the dose of phytoecdysteroid of 2 mg/100 g of artificial feed resulted in the highest survival and the fastest metamorphosis speed of crab larvae for zoea-2 and zoea-3, and the dose of 4 mg/100 g of artificial feed for stadia megalopa and crablet. Keywords: phytoecdysteroids, survival rate, metamorphosis, blue swimming crab ABSTRAK Kelangsungan hidup rajungan dalam pembenihan masih rendah, dan proses metamorfosis larva masih lambat. Tujuan penelitian ini adalah untuk mengevaluasi pengaruh pemberian fitoekdisteroid dosis berbeda terhadap kelangsungan hidup dan kecepatan metamorfosis larva rajungan. Penelitian ini terdiri atas empat perlakuan dosis fitoekdisteroid yang berbeda, yaitu: kontrol (0 mg/100 g pakan), 1 mg/100 g pakan, 2 mg/100 g pakan, dan 4 mg/100 g pakan dengan masing-masing perlakuan dilakukan tiga kali ulangan. Kelangsungan hidup larva dianalisis menggunakan analisis sidik ragam, sedangkan kecepatan metamorfosis larva dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa dosis fitoekdisteroid sebanyak 2 mg/100 g pakan buatan menghasilkan kelangsungan hidup tertinggi dan proses metamorfosis larva rajungan tercepat untuk stadia zoea-2 dan zoea-3, serta dosis 4 mg/100 g pakan buatan untuk stadia megalopa dan crablet. Kata kunci: fitoekdisteroid, kelangsungan hidup, metamorfosis, rajungan
Corporate Social Responsibility in Family and Non-Family SMEs in Mexico

Corporate social responsibility (CSR) has been practically oriented towards large companies, and few studies have analyzed this construct in a context of family businesses, but there are few studies that relate CSR in small and medium-sized enterprises Family businesses (SMEs) and non-family businesses. Therefore, this empirical study has the essential objective of analyzing CSR in a context of family and non-family SMEs in Mexico. The results show that CSR is exactly the same in both family SMEs and non-family SMEs in Mexico.
VIOLENCE AGAINST TEACHERS- RULE OR EXCEPTION?

Abstract- The objective of this study is to examine the prevalence of violence against teachers by students. The study included 175 teachers, five primary and five secondary schools. The age of respondents (teachers) ranges from 20 to 65, with average age being 44,33 years. The used instrument has assessed violence against teachers and has consisted of data about the characteristics of respondents, frequency and type of violence experienced from students.The results suggest that violence against teachers in primary and secondary schools in Zagreb taken into sample is very much present. Since 74,3% teachers has experienced violence from their students during the year, that kind of behavior is more of a rule than an exception. Students in primary and secondary schools show violent behavior against their teachers at an equal level. Male teachers, as opposed to female teachers, are more frequently victims of violent behavior (posting inappropriate content online) from their students. Also, there is a statistically significant correlation (negative) between age (years of service in school) and frequency of experienced violence from students.
RESPONSES OF 3 D EXCAVATION AND ADJACENT BUILDINGS IN SAGGING AND HOGGING ZONES USING DECOUPLED ANALYSIS METHOD

Deep excavation in metropolitan regions must take account of the safety of the construction site and the serviceability of the nearby buildings. This evaluation is rarely comprehensive because of the complication of the structure-excavation system especially if the three-dimensional (3D) nature is considered. This paper studies 3D deformation characteristics for excavation and the responses of adjacent buildings located in different settlement zones. The adjacent building that is studied is a typical low-rise school building supported by spread footings. A robust decoupled analysis method (DAM) that considers nonlinear soil behavior and inelastic structural responses is developed. Different scenarios for the wall deflections, building settlements, plastic hinges of the structure and member forces of the tie beam are studied for an adjacent building that is positioned in sagging, transition and hogging zones. The analytical results show that building settlement can differ significantly from greenfield settlement, depending on the location of the building. A building in a sagging zone is more prone to damage because it experiences larger angular distortion and plastic hinge formation than buildings at other locations. However, a building in a transition or a hogging zone exhibits tension in the tie beam because of the differential horizontal movement of the footings. The engineering implications of the results of this study are discussed in this paper.