Miracle-dz/UniFAR-FTUs huggingface dataset:
Social-Aware Differentiated Visibility of Home-to-Home Shared Resources in Spontaneous Networks

The widespread adoption of online social networking to upload and share user-generated personal content rises novel issues related to the management of content ownership and privacy. To retain content ownership, we have previously designed and implemented an original solution for social-driven content sharing in home-to-home federated and spontaneous networks. This paper relevantly enhances our solution by proposing novel mechanisms to tune the visibility of shared resources based on the dynamic evaluation of social relationship tightness, inferred through social data gathered from widespread online social networks. On the one hand, the proposal autonomously evaluates the tightness of social relationships based on the primary guideline that the more users interact the tighter their relationships are. Moreover, it determines a default decision tree suitable for many application scenarios and enables its dynamic personalization based on user's feedback. On the other hand, it defines and supports a grammar to define visibility filters: runtime visibility of shared resources is automatically tuned based on both relationship tightness and defined filters. The presented prototype demonstrates how to effectively design/implement the proposal and the feasibility of our approach in terms of performance.
An Empirical Analysis of Housing Price Dynamics with Factors

The U.S. housing price indexes are subject to measurement problems that severely impair their ability to capture the true risk. In this paper, we seek alternative methodology of utilizing latent-variable statistical methods and provide new insight to understand housing market dynamics. Housing prices are assumed to respond to external forces as proxies by way of a set of macroeconomic variables and nancial indexes. Latent variable models allow us to extract interpretable common information about unobserved real estate returns. This methodology of this paper is based on the framework in Bai & Ngs papers (2002 &2006). We applies a pure statistical approach to extract the latent factors and, more importantly, examines whether the observed macro factors are exact factors according to the information criteria proposed by Bai &Ng (2006). For robustness, we test both OFHEO repeated sales index and MRAC median home price index. We found geographical pattern of factor loadings for housing price appreciation at MSA level. The results indicate that income, consumption and GDP is a comparatively accurate factor.
PERFORMANCE OF IRRIGATED BLACK PEPPER

This study aimed to evaluate irrigation depths in the performance of black pepper (Piper nigrum), in São Mateus-ES, Brazil. We performed the experiment with five treatments and four replications, with depth irrigation replacement being varied according to the crop evapotranspiration (ETc). In the first year we evaluated: number of leaves per plant (NLP), plants height (PH), stem diameter (SD) and leaf temperature (LT). The best results were, respectively, 52.5 leaves per plant; 173.1 cm and 13.5 mm, with 100% replacement of ETc, at 199 days after planting. For leaf temperature, we observed lowest values in the 100% treatment. In the second year we evaluated the number of bunches per plant (NBP) and the productivity of fresh grains (PFG) and dry grains (PDG). For the NBP and PDG variables, the best results occurred in the depths of 75% and 100%, respectively. We recommend 100% of ETC replacements for the first and second year.
Prenatal availability of choline modifies development of the hippocampal cholinergic system

Choline supplementation during fetal development [embryonic days (E) 11–17] permanently enhances memory performance in rats. To characterize the neurochemical mechanisms that may mediate this effect, we investigated the development of indices of the cholinergic system in the hippocampus: choline acetyltransferase (ChAT), acetylcholinesterase (AChE), synthesis of acetylcholine (ACh) from choline transported by high‐affinity choline uptake (HACU), and potassium‐evoked ACh release. During E11–E17, Sprague‐Dawley pregnant rats consumed 0 [choline‐deficient (ChD)], 1.3 [control (ChC)], and 4.6 [choline‐supplemented (ChS)] mmol/(kg • day) of choline, respectively. On postnatal days 17 and 27, hippocampi of the ChD animals had the highest AChE and ChAT activities, and increased synthesis of ACh from choline transported by HACU, concomitant with reductions of tissue ACh content relative to the ChC and ChS rats and an inability to sustain depolarization‐evoked ACh release relative to the ChS animals. In contrast, AChE and ChAT activities, and ACh synthesized from choline transported by HACU, were lowest in ChS rats whereas depolarization‐evoked ACh release was the highest. This pattern of changes suggests that the hippocampus of the ChD animals is characterized by fast ACh recycling and efficient choline reutilization for ACh synthesis, presumably to maintain adequate ACh release despite the decrease of the ACh pool, whereas in the ChS animals ACh turnover and choline recycling is slower while the evoked release of ACh is high. Together, the data show a complex adaptive response of the hippocampal cholinergic system to prenatal choline availability and provide a novel example of developmental plasticity in the nervous system governed by the supply of a single nutrient. —Cermak, J. M. , Holler, T. , Jackson, D. A. , Blusztajn, J. K. Prenatal availability of choline modifies development of the hippocampal cholinergic system. FASEB J. 12, 349–357 (1998)
Impact of Multilateral Trade Liberalization on Resource Revenue

This paper investigates the impact of multilateral trade liberalization on resource revenue, using an unbalanced panel dataset comprising 57 countries, including both developed and developing countries, over the period 1995–2015. By means of the two-step system Generalized Methods of Moments (GMM) estimator, the empirical analysis suggests that multilateral trade liberalization exerts a negative effect on resource revenue, probably at the benefit of non-resource revenue. However, this effect over the full sample hides a positive effect of multilateral trade liberalization on resource revenue in poorest countries, and a negative effect of multilateral trade liberalization on resource revenue in non-poorest countries of the sample. Additionally, the negative effect of multilateral trade liberalization on resource revenue over the full sample appears to be dependent on the degree of domestic trade liberalization. In fact, multilateral trade liberalization genuinely induces a reducing effect on resource revenue only if countries liberalize their domestic trade regime beyond a minimum level.
Phylogenetics Based on Partial ORF2 of Triatoma Virus in Triatomines Collected Over a Decade From Domiciliary Habitats

ABSTRACT. The only virus sequenced and studied in triatomines is the Triatoma virus, from the Dicistroviridae family, which causes delayed development, reduced oviposition, and premature death of infected insects. With the goal of expanding the sequences already obtained in previous years and verifying if any changes occurred in their genomic sequences, 68 samples of triatomines from several provinces of Argentina were analyzed. Sixteen positive samples were obtained by Reverse Transcription (RT)-polymerase chain reaction using the VP3-VP1 subregion of open reading frame-2 as a diagnostic method; after sequencing, 11 samples were obtained from Triatoma infestans. These new sequences showed no significant differences in the analyzed regions, which were not grouped by species or habitat or geographical distribution. There were no differences when compared with the sequences found during 2002–2012, all obtained from the wild.We conclude that despite being an RNA virus, the different sequences show high homology.
Abortion and Female Power in the Household Evidence from Labor Supply

Legalization of abortion in the 1970s represents a major cultural change: it gives women a higher degree of freedom to directly control their fertility, allowing them to ultimately decide upon children without man’s consent and to decrease uncertainty in their expected labor market returns. This public policy and its implications on female behavior have been so far analyzed through its direct consequences on fertility and fertility technology, primarily on women actually experiencing an abortion. However, it seems relevant to evaluate its indirect effects on female bargaining power within the household, for all women that face abortion as an actual opportunity, without necessarily experiencing one. I focus on the indirect effect of abortion legalization in the United States on women’s position in the household. My findings suggest that the legalization positively affected female bargaining power.
Detailed Model of Long Transmission Lines for Modal Analysis of ac Networks

This paper describes a detailed s-domain model for long transmission lines to be used in the modal analysis of ac networks. Structural information on the system may be obtained with modal analysis, which nicely complement those obtained by the traditional time and frequency response analyses. The sdomain model considers the distributed parameters of the transmission lines and also their frequency dependency, taking into account the skin effect and ground return path influence. Modal analysis results are included.
THE NEUBER ’ S RULE AND A CORRELATION BETWEEN FRETTING FATIGUE AND PLAIN FATIGUE

Based on these experimental observations and on the remark that any small change on the discontinuity geometry has a significant effect on the stress distribution around it, a stress concentration factor is mandatory to be incorporated into the fatigue models in order to accurately predict the life. In this paper, it is proposed a correlation between the global degradation processes in plain fatigue case and the local degradation process in fretting fatigue case.
Advanced modeling of a moderate-resolution holographic spectrograph

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Advanced modeling of a moderate-resolution holographic spectrograph Eduard Muslimov, Gennady Valyavin, Sergei Fabrika, Nadezhda Pavlycheva
Tests for Gaussianity of a Stationary Time Series

One of the primary uses of higher order statistics in signal processing has been for detecting and estimation of nonGaussian signals in Gaussian noise of unknown covariance. This is motivated by the ability of higher order statistics to suppress additive Gaussian noise. In this paper, several methods to test for nonGaussianity of a given process are presented. These methods include histogram plot, kurtosis test, and hypothesis testing using cumulants and bispectrum of the available sequence. The hypothesis testing is performed by constructing a statistic to test whether the bispectrum of the given signal is non-zero. A zero bispectrum is not a proof of Gaussianity. Hence, other tests such as the kurtosis test should be employed. Examples are given to demonstrate the performance of the presented methods. Keywords—Non-Gaussian, bispectrum, kurtosis, hypothesis testing, histogram.
The Cray T3E Network: Adaptive Routing in a High Performance 3D Torus

This paper describes the interconnection network used in the Cray T3E multiprocessor. The network is a bidirectional 3D torus with fully adaptive routing, optimized virtual channel assignments, integrated barrier synchronization support and considerable fault tolerance. The routers are built with LSI’s 500K ASIC technology with custom transmitters/ receivers driving low-voltage differential signals at 375 MHz, for a link data payload capacity of approximately 500 MB/s.
Finding frequent items in probabilistic data

Computing statistical information on probabilistic data has attracted a lot of attention recently, as the data generated from a wide range of data sources are inherently fuzzy or uncertain. In this paper, we study an important statistical query on probabilistic data: finding the frequent items. One straightforward approach to identify the frequent items in a probabilistic data set is to simply compute the expected frequency of an item and decide if it exceeds a certain fraction of the expected size of the whole data set. However, this simple definition misses important information about the internal structure of the probabilistic data and the interplay among all the uncertain entities. Thus, we propose a new definition based on the possible world semantics that has been widely adopted for many query types in uncertain data management, trying to find all the items that are likely to be frequent in a randomly generated possible world. Our approach naturally leads to the study of ranking frequent items based on confidence as well. Finding likely frequent items in probabilistic data turns out to be much more difficult. We first propose exact algorithms for offline data with either quadratic or cubic time. Next, we design novel sampling-based algorithms for streaming data to find all approximately likely frequent items with theoretically guaranteed high probability and accuracy. Our sampling schemes consume sublinear memory and exhibit excellent scalability. Finally, we verify the effectiveness and efficiency of our algorithms using both real and synthetic data sets with extensive experimental evaluations.
Experiences of peer support for children and adolescents whose parents and siblings have mental illness.

PROBLEM There is minimal published literature on experiences of peer support programs for children/adolescents in families affected by mental illness. This study aimed to explore children's and adolescents' perspectives of the ON FIRE peer support program. METHODS An exploratory qualitative study with 14 children/adolescents 9-17 years of age who participated in semi-structured interviews. Thematic analysis resulted in three themes of experience. FINDINGS Participants made connections with others in the program, developed personal strengths, and learned how to contribute to others' well-being. CONCLUSION Participants derived substantial personal benefit from peer support. Use of social media and the Internet may facilitate future program delivery.
Ab Initio Study of the Electronic, Vibrational, and Mechanical Properties of the Magnesium Diboride Monolayer

Magnesium diboride gained significant interest in the materials science community after the discovery of its superconductivity, with an unusually high critical temperature of 39 K. Many aspects of the electronic properties and superconductivity of bulk MgB 2 and thin sheets of MgB 2 have been determined; however, a single layer of MgB 2 has not yet been fully theoretically investigated. Here, we present a detailed study of the structural, electronic, vibrational, and elastic properties of monolayer MgB 2 , based on ab initio methods. First-principles calculations reveal the importance of reduction of dimensionality on the properties of MgB 2 and thoroughly describe the properties of this novel 2D material. The presence of a negative Poisson ratio, higher density of states at the Fermi level, and a good dynamic stability under strain make the MgB 2 monolayer a prominent material, both for fundamental research and application studies.
Autonomous workload-driven reorganization of column groupings in MMDBS

A current trend to achieve high query performance even for huge data warehouse and business intelligence systems is to exploit main-memory-based processing techniques such as compression, cache-conscious strategies, and optimized data structures. However, update processing and skews in data distribution might lead to degenerations in such densely packed and highly compressed data structures affecting the memory efficiency and query performance negatively. Thus, reorganization tasks for repairing these data structures are necessary but should be carefully applied in order to not impact query execution or even system availability significantly. In this paper, we consider the special problem of tuple layout in banked storage structures. Based on runtime statistics capturing typical access patterns in the current workload, we present a bank reassignment approach that can be piggybacked to maintenance tasks without any administration overhead. We have implemented this approach in IBM Smart Analytics Optimizer (ISAOPT). The results of our experimental evaluation show that a simple automatic restructuring of the considered hybrid row-column-store structures offers opportunities to improve query runtimes when a slight memory overhead is acceptable.
Multifunctional Polymeric Micelles for Combining Chelation and Detection of Iron in Living Cells

Multifunctional self‐assembled micelles composed of Pluronics F127 polymer chains are developed and investigated for chelation and selective detection of iron(III) in vitro and in iron‐overloaded cells. Tetraphenylethene (TPE) is encapsulated into the micelle core and the iron chelate drug deferoxamine (DFO) is conjugated to micelles to generate a fluorescence quenching detection system termed DFO‐TFM for short, where T stands for TPE, F for F127, and M for micelle. The key to the successful formation of this fluorescence quenching system is due to the near‐ideal overlap between the absorption spectrum of the DFO:iron(III) complex and fluorescence spectrum of TPE. DFO‐TFM can retain the iron‐chelation properties of DFO and exhibits negligible cytotoxicity compared to free DFO. Furthermore, this fluorescence “turn‐off” system can be utilized to detect the presence of iron and to monitor the chelation process in an iron overload cell model. This study serves as an effective proof‐of‐concept model for designing future in vivo systems capable of combining the features of iron chelation with iron detection and efforts toward the development of such detection systems are currently underway.
Evaluation and Improvement of Dependable Processes

In the development of systems that have to be dependable, weaknesses in the requirements engineering (RE) process are highly undesirable. Such weaknesses may either introduce undetected system weaknesses, or otherwise significant costs may arise in their correction later in the development process. Typically, the RE process contains a number of individual and group activities and thus is particularly subject to weaknesses arising from human factors. Our work has concerned the development of PERE (Process Evaluation in Requirements Engineering), which is a structured method for analysing processes for weaknesses and proposing process improvements against them. PERE combines two complementary viewpoints within its process evaluation approach. Firstly, a classical engineering analysis is used for process modelling and generic process weakness identification. This initial analysis is fed into the second analysis phase, in which those process components that are primarily composed of human activity, their interconnections and organisational context are subject to a systematic human factors analysis. In this paper we briefly describe PERE and provide examples of the application experience to date.
Disclosing the Genetic Structure of Brazil through Analysis of Male Lineages with Highly Discriminating Haplotypes

In a large variety of genetic studies, probabilistic inferences are made based on information available in population databases. The accuracy of the estimates based on population samples are highly dependent on the number of chromosomes being analyzed as well as the correct representation of the reference population. For frequency calculations the size of a database is especially critical for haploid markers, and for countries with complex admixture histories it is important to assess possible substructure effects that can influence the coverage of the database. Aiming to establish a representative Brazilian population database for haplotypes based on 23 Y chromosome STRs, more than 2,500 Y chromosomes belonging to Brazilian, European and African populations were analyzed. No matter the differences in the colonization history of the five geopolitical regions that currently exist in Brazil, for the Y chromosome haplotypes of the 23 studied Y-STRs, a lack of genetic heterogeneity was found, together with a predominance of European male lineages in all regions of the country. Therefore, if we do not consider the diverse Native American or Afro-descendent isolates, which are spread through the country, a single Y chromosome haplotype frequency database will adequately represent the urban populations in Brazil. In comparison to the most commonly studied group of 17 Y-STRs, the 23 markers included in this work allowed a high discrimination capacity between haplotypes from non-related individuals within a population and also increased the capacity to discriminate between paternal relatives. Nevertheless, the expected haplotype mutation rate is still not enough to distinguish the Y chromosome profiles of paternally related individuals. Indeed, even for rapidly mutating Y-STRs, a very large number of markers will be necessary to differentiate male lineages from paternal relatives.
A Low-Complexity Transceiver Design in Sparse Multipath Massive MIMO Channels

In this letter, we develop a low-complexity transceiver design, referred to as semirandom beam pairing, for sparse multipath massive multiple-input-multiple-output (MIMO) channels. By exploring a sparse representation of the MIMO channel in the virtual angular domain, we generate a set of transmit-receive beam pairs in a semirandom way to support the simultaneous transmission of multiple data streams. These data streams can be easily separated at the receiver via a successive interference cancelation technique, and the power allocation among them are optimized based on the classical waterfilling principle. The achieved degree of freedom (DoF) and capacity of the proposed approach are analyzed. Simulation results show that, compared to the conventional singular value decomposition-based method, the proposed transceiver design can achieve near-optimal DoF and capacity with a significantly lower computational complexity.
Serendipitous SAD Solution for DMSO-Soaked SOCS2-ElonginC-ElonginB Crystals Using Covalently Incorporated Dimethylarsenic: Insights into Substrate Receptor Conformational Flexibility in Cullin RING Ligases

Suppressor of cytokine signalling 2 (SOCS2) is the substrate-binding component of a Cullin-RING E3 ubiquitin ligase (CRL) complex that targets phosphorylated hormone receptors for degradation by the ubiquitin-proteasome system. As a key regulator of the transcriptional response to growth signals, SOCS2 and its protein complex partners are potential targets for small molecule development. We found that crystals of SOCS2 in complex with its adaptor proteins, Elongin C and Elongin B, underwent a change in crystallographic parameters when treated with dimethyl sulfoxide during soaking experiments. To solve the phase problem for the new crystal form we identified the presence of arsenic atoms in the crystals, a result of covalent modification of cysteines by cacodylate, and successfully extracted anomalous signal from these atoms for experimental phasing. The resulting structure provides a means for solving future structures where the crystals must be treated with DMSO for ligand soaking approaches. Additionally, the conformational changes induced in this structure reveal flexibility within SOCS2 that match those postulated by previous molecular dynamics simulations. This conformational flexibility illustrates how SOCS2 can orient its substrates for successful ubiquitination by other elements of the CRL complex.