Miracle-dz/UniFAR-FTUs huggingface dataset:
The Log-gamma-logistic Regression Model: Estimation, Sensibility and Residual Analysis

In this paper, we formulate and develop a log-linear model using a new distribution called the log-gammalogistic. We show that the new regression model can be applied to censored data since it represents a parametric family of models that includes as sub-models several widely-known regression models and therefore can be used more effectively in the analysis of survival data. We obtain maximum likelihood estimates of the model parameters by considering censored data and evaluate local influence on the estimates of the parameters by taking different perturbation schemes. Some global-influence measurements are also investigated. Further, for different parameter settings, sample sizes and censoring percentages, various simulations are performed. In addition, the empirical distributions of some modified residuals are displayed and compared with the standard normal distribution. These studies suggest that the residual analysis usually performed in normal linear regression models can be extended to modified deviance residuals in the proposed regression model applied to censored data. We demonstrate that our extended regression model is very useful to the analysis of real data and may give more realistic fits than other special regression models.
Coexistence of quantum-confined Stark effect and localized states in an (In,Ga)N/GaN nanowire heterostructure

We analyze the emission of single GaN nanowires with (In,Ga)N insertions using both micro-photoluminescence and cathodoluminescence spectroscopy. The emission spectra are dominated by a green luminescence band that is strongly blueshifted with increasing excitation density. In conjunction with finite-element simulations of the structure to obtain the piezoelectric polarization, these results demonstrate that our (In,Ga)N/GaN nanowire heterostructures are subject to the quantum-confined Stark effect. Additional sharp peaks in the spectra, which do not shift with excitation density, are attributed to emission from localized states created by compositional fluctuations in the ternary (In,Ga)N alloy.
Estimating computer systems power consumption for time scaled experiments

Power policies are widely applied at computer systems such as desktops, notebooks, and smartphones. For example, the timeout policy to turn off the display. A power management policy must be tested by measuring the power consumption of an experimental platform running workloads. Such tests must be fast enough to feedback the development process with valuable information about the power policy performance. In this work, we have presented a methodology for estimating computer systems power consumption for time scaled experiments. Using the proposed methodology, we have reduced the overall time for developing a power management policy.
Statistical Approach for Detecting Distributed Denial of Service Attacks

Â Â Over the past decades, network security issues have been raised due to the rapid growth of internet. Security has been becomes an important challenge to secure the network from cyber-attacks. Various tools that are required for security purposes are firewalls, passwords, IDS for the detection of attacks and prevent it from sending out the harmful traffic to the traffic. This paper present statistical based intrusion detection technique based on chi square to detect DDoS attack by calculating the expected and observed frequencies. In this case traffic is containing in a dataset of certain interval. Traffic is contained from a backscatter dataset. This approach can effectively detect the DDoS attack.
Analysis of Implicit Conditions in Database Search Dialogues

This paper reports an annotation to a corpus of database search dialogues on real estate, and the analysis on implicit information in the utterances for constructing database queries. Two annotators annotated 50 dialogues with a set of database ﬁeld tags, resulting in a high inter-annotator agreement (Cohen’s (cid:20) =0.79), and the analysis revealed that 10% of the utterances included non-database-ﬁeld information. We further investigated these utterances to ﬁnd that more than 93% of them included useful information for ﬁguring out search conditions, which we call the implicit condition . The contribution of this paper is to present the existence and importance of the implicit conditions in the database search dialogues and both qualitative and quantitative analysis of them. Our corpus can provide a fundamental language resource for constructing a dialogue system which can utilise the implicit conditions. The paper concluded with possible approaches to achieve our long-term goal, extracting the implicit conditions in the database search dialogues and utilising them to construct queries.
What Does the Future Hold for Yellow Fever Virus? (I)

The recent resurgence of yellow fever virus (YFV) activity in the tropical regions of Africa and South America has sparked renewed interest in this infamous arboviral disease. Yellow fever virus had been a human plague for centuries prior to the identification of its urban transmission vector, the Aedes (Stegomyia) aegypti (Linnaeus) mosquito species, and the development of an efficient live-attenuated vaccine, the YF-17D strain. The combination of vector-control measures and vaccination campaigns drastically reduced YFV incidence in humans on many occasions, but the virus never ceased to circulate in the forest, through its sylvatic invertebrate vector(s) and vertebrate host(s). Outbreaks recently reported in Central Africa (2015–2016) and Brazil (since late 2016), reached considerable proportions in terms of spatial distribution and total numbers of cases, with multiple exports, including to China. In turn, questions about the likeliness of occurrence of large urban YFV outbreaks in the Americas or of a successful import of YFV to Asia are currently resurfacing. This two-part review describes the current state of knowledge and gaps regarding the molecular biology and transmission dynamics of YFV, along with an overview of the tools that can be used to manage the disease at individual, local and global levels.
How colorful are birds? Evolution of the avian plumage color gamut

The avian plumage color gamut is the complete range of plumage colors, as seen by birds themselves. We used a tetrahedral avian color stimulus space to estimate the avian plumage color gamut from a taxonomically diverse sample of 965 plumage patches from 111 avian species. Our sample represented all known types of plumage coloration mechanisms. The diversity of avian plumage colors occupies only a portion (26--30%, using violet-sensitive and ultraviolet-sensitive models, respectively) of the total available avian color space, which represents all colors birds can theoretically see and discriminate. For comparison, we also analyzed 2350 plant colors, including an expansive set of flowers. Bird plumages have evolved away from brown bark and green leaf backgrounds and have achieved some striking colors unattainable by flowers. Feather colors form discrete hue "continents," leaving vast regions of avian color space unoccupied. We explore several possibilities for these unoccupied hue regions. Some plumage colors may be difficult or impossible to make (constrained by physiological and physical mechanisms), whereas others may be disadvantageous or unattractive (constrained by natural and sexual selection). The plumage gamut of early lineages of living birds was probably small and dominated by melanin-based colors. Over evolutionary time, novel coloration mechanisms allowed plumages to colonize unexplored regions of color space. Pigmentary innovations evolved to broaden the gamut of possible communication signals. Furthermore, the independent origins of structural coloration in many lineages enabled evolutionary expansions into places unreachable by pigmentary mechanisms alone. Copyright 2011, Oxford University Press.
PENGARUH KECUKUPAN MODAL, RISIKO KREDIT, BIAYA OPERASIONAL PENDAPATAN OPERASIONAL PADA PROFITABILITAS BANK

This study aimed to determine the effect of capital adequacy, credit risk and operational costs operating income (ROA) on the profitability of banks listed on the Stock Exchange. The data used in this study were obtained from published financial statements of banking companies listed on the Stock Exchange from the year 2009-2013 with a sample of 26 banking. The data analysis technique used is multiple linear regression with applications SPSS.Berdasarkan analysis showed that partial capital adequacy positive effect on the profitability of banks listed on the Stock Exchange in 2009-2013, while the credit risk and operational costs of operating income (ROA) negative effect on Bank profitability listed on the Stock Exchange in 2009-2013.
EventWiki: A Knowledge Base of Major Events

This paper introduces a new resource called EventWiki which is, to the best of our knowledge, the first knowledge base resource of major events. In contrast to most existing knowledge bases that focus on static entities such as people, locations and organizations, our EventWiki concentrate on major events, in which all entries in EventWiki are important events in mankind history. We demonstrate that EventWiki is a very useful resource for information extraction regarding events in Natural Language Processing (NLP), knowledge inference and automatic knowledge base construction.
Asp-pricing: a black-scholes option pricing formulation

The Applications Service Provider (ASP) arrangement has engendered a revolution in the area o f corporate information technology (IT) by transforming software from a packaged off-the-shelf product to an on-line virtual service. The outsourcing mechanism comprising software renting is intrinsic to applications hosting, and offers a viable alternative to purchasing the shrink-wrapped or retail counterpart o f the ASP-deployed software. The major advantages to renting are affordable access to high-priced key business applications, reduced total cost of ownership, opportunity to implement improved IT solutions in the future, and decreased time to market. The fact that renting software is a potentially valuable IT alternative is manifest in favorable demand forecasts for ASP offerings with total revenues from outsourcing expected to be between $8 — $25 billion in 2004. This study extends the scope o f real-options applications by conceptualizing and evaluating a software outsourcing or ASP mechanism that offers decision flexibility to the end user. Although the ASP arrangement has surfaced as a feasible IT investment alternative, its continuance as a business solution depends on the outsourcing firm’s operative life. The rental services are likely to be terminated if the ASP’s operations are disrupted due to bankruptcy or consolidation. Moreover, different ASPs charge disparate subscription fees for hosting the same software applications. One
Genetic screening identifies a SUMO protease dynamically maintaining centromeric chromatin and the associated centromere complex

Centromeres are defined by a unique self-propagating chromatin structure featuring nucleosomes containing the histone H3 variant CENP-A. CENP-A turns over slower than general chromatin and a key question is whether this unusual stability is intrinsic to CENP-A nucleosomes or rather imposed by external factors. We designed a specific genetic screen to identify proteins involved in CENP-A stability based on SNAP-tag pulse chase labeling. Using a double pulse-labeling approach we simultaneously assay for factors with selective roles in CENP-A chromatin assembly. We discover a series of new proteins involved in CENP-A propagation, including proteins with known roles in DNA replication, repair and chromatin modification and transcription, revealing that a broad set of chromatin regulators impacts in CENP-A transmission through the cell cycle. The key factor we find to strongly affect CENP-A stability is SENP6. This SUMO-protease controls not only the levels of chromatin bound CENP-A but is required for the maintenance of virtually the entire centromere and kinetochore, with the exception of CENP-B. Acute depletion of SENP6 protein reveals its requirement for maintaining centromeric CENP-A levels throughout the cell cycle, suggesting that a dynamic SUMO cycle underlies a continuous surveillance of the centromere complex.
8 M ay 2 01 8 EQUIVALENT CONDITIONS FOR DIGITAL COVERING MAPS

In this paper we show that a digital (κ, λ)−continuous surjection p : (E,κ) → (B, λ) is a digital covering map if and only if it has unique path lifting property if and only if it is a local isomorphism. Moreover, we find a loop criterion for a digital covering map to be an n-radius covering.
Qilin pills alleviate oligoasthenospermia by inhibiting Bax-caspase-9 apoptosis pathway in the testes of model rats

At present, the treatment of oligoasthenospermia with western medicine is ineffective. Qilin pill (QLP) is a Chinese traditional medicine for treating male infertility. Recent multicenter clinical studies in China reported that QLPs markedly improved sperm quality. However, the mechanism of action of QLPs on oligoasthenospermia remains unknown. In this study, we investigated the mechanistic basis for improvement of semen parameters and reversal of testis damage by QLPs in a rat model of oligoasthenospermia induced by treatment with tripterygium glycosides (TGs) (40 mg/kg) once daily for 4 weeks. Rats were administered QLPs (1.62 g/kg or 3.24 g/kg) each day for 60 days, with untreated animals serving as controls. The concentration and motility of sperm extracted from rat epididymis were determined, whereas histopathological examination and immunohistochemical apoptosis analysis of rat testes was performed. Expression profiles of apoptosis-related genes were determined by microarray analysis; the results were validated by quantitative real-time PCR, western blotting, and immunohistochemistry. Sperm concentration and motility in the QLP treatment group were increased relative to those in control rats. Testis tissue and DNA damage were reversed by QLP treatment. The improvement function of QLPs on sperm and testis works mainly by suppressing mitochondrial apoptosis in the testis via modulation of B cell lymphoma (Bcl)-2, Bcl-2-associated X protein (Bax), cytochrome C, caspase-9 and caspase-3 expression. QLPs could improve sperm quality and testis damage in a rat model of oligoasthenospermia by inhibiting the Bax-Caspase-9 apoptosis pathway and exerting therapeutic effects.
Tough on… what? New Labour’s war on crime statistics

New Labour’s term in office has been remarkable for the emphasis the government has placed on ‘law and order’ issues - traditionally associated with Conservative rather than Labour governments. A more significant innovation, representing a break with the law-andorder Right as well as the Left, has been the adoption of a broad and coherent preventive agenda, aimed at the active management of both crime and non-criminal disorder. An unintended consequence of New Labour’s ‘disorder prevention’ programme has been to make it significantly more difficult to define, record or count criminal offences in coherent ways. Ironically, a government which prides itself on its achievements in the fight against crime has made it harder than ever before to measure the actual rate at which criminal offences are committed.
ESTIMATION OF RISK EFFECTS WITH SEEMINGLY UNRELATED REGRESSIONS AND PANEL DATA

In this paper, production functions in the form of seemingly unrelated regressions (SUR) with errors that are heteroscedastic and that contain cross-section and time components are proposed. These functions are distinguished from others in that they allow the risks (indicated by variances) of outputs to change in any direction in response to input changes. The SUR are then applied in the analysis of cross-section time-series data for rice, wheat, and maize production in China.
Development of a Custom MALDI-TOF MS Database for Species-Level Identification of Bacterial Isolates Collected From Spacecraft and Associated Surfaces

Since the 1970s, the Planetary Protection Group at the Jet Propulsion Laboratory (JPL) has maintained an archive of spacecraft-associated bacterial isolates. Identification of these isolates was routinely performed by sequencing the 16S rRNA gene. Although this technique is an industry standard, it is time consuming and has poor resolving power for some closely related taxa. Matrix-assisted laser desorption/ionization time of flight (MALDI-TOF) mass spectrometry is widely used in clinical diagnostics and is a promising method to substitute standard 16S rRNA sequencing. However, manufacturer-provided databases lack the bacterial diversity found in spacecraft-assembly cleanrooms. This study reports the development of the first custom database of MALDI-TOF MS profiles of bacterial isolates obtained from spacecraft and associated cleanroom environments. With the use of this in-house database, 454 bacterial isolates were successfully identified in concurrence with their 16S rRNA sequence-based classifications. Additionally, MALDI-TOF MS resolved strain-level variations, identified potential novel species and distinguished between members of taxonomic groups, which is not possible using conventional 16S rRNA sequencing. MALDI-TOF MS has proved to be an accurate, high-throughput approach for real-time identification of bacterial isolates during the spacecraft assembly process.
Effects of Vibrotactile Feedback on Human Learning of Arm Motions

Tactile cues generated from lightweight, wearable actuators can help users learn new motions by providing immediate feedback on when and how to correct their movements. We present a vibrotactile motion guidance system that measures arm motions and provides vibration feedback when the user deviates from a desired trajectory. A study was conducted to test the effects of vibrotactile guidance on a subject's ability to learn arm motions. Twenty-six subjects learned motions of varying difficulty with both visual (V), and visual and vibrotactile (VVT) feedback over the course of four days of training. After four days of rest, subjects returned to perform the motions from memory with no feedback. We found that augmenting visual feedback with vibrotactile feedback helped subjects reduce the root mean square (rms) angle error of their limb significantly while they were learning the motions, particularly for 1DOF motions. Analysis of the retention data showed no significant difference in rms angle errors between feedback conditions.
Assessing functional recovery in the first six months after acute ischemic stroke: a prospective, observational study.

BACKGROUND Stroke is a major cause of short-term functional impairment, but the recovery timeframes are not well-established. AIM This study aims to evaluate the progression of functional recovery during the first 24 weeks after acute ischemic stroke, to determine the timeframes for motor, cognitive, and overall recovery. DESIGN Prospective observational study. SETTING Tertiary care center; 12-week inpatient period, followed by 12-week outpatient period. POPULATION A group of 131 patients with acute stroke in the territory of the middle cerebral artery with age 18-85 years-old. METHODS Patients received treatment according to routine clinical practice and underwent a closely-controlled rehabilitation program for 24 weeks. Functionality assessments were conducted at 48 hours, 3 weeks, 12 weeks, and 24 weeks after acute stroke and included the modified Rankin Scale (mRS), the Functional Independence Measure (FIM), and the Stroke Upper Limb Capacity Scale (SULCS). RESULTS Over the study period, patient functionality improved significantly (P<0.001) as measured by all scales. Assessment scores improved significantly from 48 hours to 3 weeks for all scales; the same occurred from 3 weeks to 12 weeks, except for C-FIM. From 12 weeks to 24 weeks, there were no statistically significant functional improvements for any scale. In comparative terms, cognitive impairment was less severe than motor disability in the acute phase. C-FIM scores at 48 hours were significantly higher than M-FIM and mRS scores. Upper limb functioning measured by SULCS, showed a intermediate degree of disability compared to the C-FIM, M-FIM, and mRS. CONCLUSIONS Functional recovery occurs at least until 24 weeks after acute stroke, but most of the functional gains tend to be achieved during the first 12 weeks. Cognitive function tends to improve earlier than motor function, with the most substantial gains occurring within the first three weeks. From 12 to 24 weeks there are observable numerical gains in patient functionality, highlighting the need to maintain an adequate rehabilitation program. CLINICAL REHABILITATION IMPACT This study provides insight into the recovery timeframe for stroke patients, which can support the development of more effective rehabilitation programs.
Tools for Building an Interlinked Synonym Lexicon Network

This paper presents the structure, features and design of a new interlinked verbal synonym lexical resource called CzEngClass and the editor tool being developed to assist the work. This lexicon captures cross-lingual (Czech and English) synonyms, using valency behavior of synonymous verbs in relation to semantic roles as one of the criteria for deﬁning such interlingual synonymy. The tool, called Synonym Class Editor - SynEd, is a user-friendly tool speciﬁcally customized to build and edit individual entries in the lexicon. It helps to keep the cross-lingual synonym classes consistent and linked to internal as well as to well-known external lexical resources. The structure of SynEd also allows to keep and edit the appropriate syntactic and semantic information for each Synonym Class member. The editor makes it possible to display examples of class members’ usage in translational context in a parallel corpus. SynEd is platform independent and may be used for multiple languages. SynEd, CzEngClass and services based on them will be openly available.
Sensitivity tests for an ensemble Kalman filter for aerosol assimilation

We present sensitivity tests for a global aerosol as- similation system utilizing AERONET observations of AOT (aerosol optical thickness) and AAE (aerosol ˚ Angstr¨ om ex- ponent). The assimilation system employs an ensemble Kalman filter which requires tuning of three numerical pa- rameters: ensemble size nens, local patch size npatch and in- flation factor . In addition, experiments are performed to test the impact of various implementations of the system. For instance, we use a different prescription of the emission en- semble or a different combination of observations. The various experiments are compared against one- another and against independent AERONET and MODIS/ Aqua observations. The assimilation leads to significant im- provements in modelled AOT and AAE fields. Moreover re- maining errors are mostly random while they are mostly sys- tematic for an experiment without assimilation. In addition, these results do not depend much on our parameter or design choices. It appears that the value of the local patch size has by far the biggest impact on the assimilation, which has sufficiently converged for an ensemble size of nens = 20. Assimilating AOT and AAE is clearly preferential to assimilating AOT at two different wavelengths. In contrast, initial conditions or a description of aerosol beyond two modes (coarse and fine) have only little effect. We also discuss the use of the ensemble spread as an error estimate of the analysed AOT and AAE fields. We show that a very common prescription of the emission ensemble (in- dependent random modification in each grid cell) can have trouble generating sufficient spread in the forecast ensem- ble.