Miracle-dz/UniFAR-FTUs huggingface dataset:
Functional somatic symptoms in adolescence and young adulthood

Background: The purpose of this study was to investigated the effect of negative life events on Functional somatic symptoms (FSS) in adolescents. Methods: Data from 957 participants of the population cohort TRAILS were used for this study. Life events experienced between age 16 and age 19 were assessed with the Kendler’s Life Stress interview. FSS at age 19 and age 16 were measured with the Youth and Adult Self-Report. The hypotheses were tested by use of a latent change model. Results: Life events predicted FSS, even when adjusted for pre-event levels of FSS, symptoms of anxiety and depression, and socioeconomic status ( B =0.006, 95% CI [0.003, 0.008], β =0.32). Whereas illness-related life events did not predict FSS independently ( B =-0.003, 95% CI [-0.005, 0.09], β =0.05), non-illness-related life events did ( B =0.007, 95% CI [0.004, 0.010], β =0.31). A past year diagnosis of anxiety and/or depression had a significant influence on the association between life events and FSS ( B = 0.37, 95% CI [0.30, 0.46], β = 0.71), while female sex, exposure to childhood adversities, and family malfunctioning had not. Conclusion: Our findings show that FSS are associated with negative life events in older adolescents. We did not find evidence for stronger effects of illness-related events.
How Organizational Citizenship Behavior Affects ERP Usage Performance: The Mediating Effect of Absorptive Capacity

Enterprises have implemented enterprise resource planning (ERP) systems as a strategic vehicle to gain a competitive edge. However, such ERP systems do not always guarantee successful results. While ERP systems may provide an organization with numerous benefits, they can also destroy a business if not successfully adopted, owing to enormous investment losses coupled with low business efficiency. To explore a way to reverse this situation, we examine how organizational citizenship behavior influences the successful management of ERP systems. Moreover, the mediating role of absorptive capacity in this relationship is investigated. The empirical analysis results, based on 188 surveyed organizations in Korea, reveal a partial mediating role of absorptive capacity on the relationship between organizational citizenship behavior and ERP usage performance. The findings of the study shed light on the ways of how the companies that adopt ERP systems to facilitate ERP usage and to gain business sustainability.
Modulation of LSD 1 phosphorylation by CK 2 / WIP 1 regulates RNF 168-dependent 53 BP 1 recruitment in response to DNA damage

Proper DNA damage response is essential for the maintenance of genome integrity. The E3 ligase RNF168 deficiency fully prevents both the initial recruitment and retention of 53BP1 at sites of DNA damage. In response to DNA damage, RNF168-dependent recruitment of the lysine-specific demethylase LSD1 to the site of DNA damage promotes local H3K4me2 demethylation and ubiquitination of H2A/H2AX, facilitating 53BP1 recruitment to sites of DNA damage. Alternatively, RNF168mediated K63-linked ubiquitylation of 53BP1 is required for the initial recruitment of 53BP1 to sites of DNA damage and for its function in repair. We demonstrated here that phosphorylation and dephosphorylation of LSD1 at S131 and S137 was mediated by casein kinase 2 (CK2) and wild-type p53-induced phosphatase 1 (WIP1), respectively. LSD1, RNF168 and 53BP1 interacted with each other directly. CK2mediated phosphorylation of LSD1 exhibited no impact on its interaction with 53BP1, but promoted its interaction with RNF168 and RNF168-dependent 53BP1 ubiquitination and subsequent recruitment to the DNA damage sites. Furthermore, overexpression of phosphorylation-defective mutants failed to restore LSD1 depletion-induced cellular sensitivity to DNA damage. Taken together, our results suggest that LSD1 phosphorylation modulated by CK2/WIP1 regulates RNF168-dependent 53BP1 recruitment directly in response to DNA damage and cellular sensitivity to DNA damaging agents.
Storage capacity of a Potts-perceptron

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. Storage capacity of a Potts-perceptron Jean-Pierre Nadal, Albrecht Rau
Inventory management, managerial competence and financial performance of small businesses

PurposeThe purpose of this study is twofold (1) to establish the relationship between inventory management, managerial competence and financial performance and (2) to test whether inventory management mediates the relationship between managerial competence and financial performance.Design/methodology/approachWe employed cross-sectional and correlational research designs. A questionnaire survey of 304 small businesses in Uganda was utilized. Hypotheses were tested using a bootstrap analysis technique with the aid of Analysis of Moments Structures (AMOS) software.FindingsResults indicate that inventory management and managerial competence are significantly associated with financial performance of small businesses. Further, inventory management partially mediates the relationship between managerial competence and financial performance.Originality/valueRather than focusing on only the direct effects of managerial competence and inventory management, moreover independently, the indirect effect of inventory management is tested. Further, the behavioral perspective of inventory management, as opposed to financial ratios, is utilized.
The Effect of Managerial Ability and Tone of Earnings Announcements towards Market Reactions

This study aims to examine and analyse the effect of Managerial Ability, Tone of Earnings Announcements, and Market Reactions. Using Return on Asset and Firm Size as control variables. In this study population taken is manufacturing companies that are listed on the Indonesia Stock Exchange during the year 2015-2016. Based on the population criteria set, the sampling method is purposive sampling. The sa
Chapter 2 Carcinogen and anti-cancer drug transport by Mrp 2 in vivo : studies using Mrp 2 ( Abcc 2 ) knockout mice

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Quality of Dissolved Organic Matter Driven by Autotrophic and Heterotrophic Microbial Processes in a Large River

Rivers are regarded as important sites for processing of dissolved organic matter (DOM) from terrestrial sources on its way to the ocean. However, little is known about the longitudinal change of DOM molecular composition in large rivers. Here we performed a Lagrangian sampling in the lower part of the Middle Elbe at low discharge conditions to test how DOM composition changes along the river stretch and how this is related to microbial processes. The concentration of dissolved organic carbon and fluorescence indices showed only subtle longitudinal differences. In contrast, ultra-high-resolution mass spectrometry analysis of riverine DOM detected pronounced changes in molecular composition. Also, chlorophyll a concentration, bacterial abundance, and bacterial production all increased downstream. The three microbial parameters were positively related to intensities of CHO and CHNO molecular formulas with high hydrogen/carbon and low oxygen/carbon ratios but negatively to several CHOS surfactants. To disentangle the role of autotrophic and heterotrophic processes, we developed a new approach and compared slopes from linear regression of DOM compound intensities versus chlorophyll a concentration and bacteria abundance. As a result, most of the positive related DOM compounds were produced by bacteria. In conclusion, longitudinal changes of river DOM seemed to be largely driven by microbial processes.
Numerical Study of Hypersonic Boundary Layer Receptivity Characteristics Due to Freestream Pulse Waves

A finite difference method is used to do direct numerical simulation (DNS) of hyper- sonic unsteady flowfield under the action of freestream pulse wave. The response of the hypersonic flowfield to freestream pulse wave is studied, and the generation and evolu- tion characteristics of the boundary layer disturbance waves are discussed. The effects of the pulse wave types on the disturbance mode in the boundary layer are investigated. Results show that the freestream disturbance waves significantly change the shock standoff distance, the distribution of flowfield parameters and the thermodynamic state of boundary layer. In the nose area, the main disturbance modes in the boundary layer are distributed near the fundamental mode. With the evolution of disturbance along with streamwise, the main disturbance modes are transformed from the dominant state of the fundamental mode to the collective leadership state of the second order and the third order harmonic frequency. The intensity of bow shock has significant effects on both the fundamental mode and the harmonic modes in each order. The strong shear structure of boundary layer under different types of freestream pulse waves reveals different stability characteristics. The effects of different types of freestream pulse waves are significant on the distribution and evolution of disturbance modes. The narrowing of frequency band and the decreasing of main disturbance mode clusters exist in the boundary layer both for fast acoustic wave, slow acoustic wave and entropy wave.
New methyltrimethoxysilane-(3-mercaptopropyl)- trimethoxysilane coated hollow fiber-solid phase microextraction for hexanal and heptanal analysis [Pengekstrakan mikro fasa pepejal-gentian berongga tersalut metiltrimetoksisilana- (3-merkaptopropil)trimetoksisilana Baharu bagi analisis heksanal dan he

etermination of volatile organic compounds (VOCs) in various matrices is often accomplished using solid phase microextraction (SPME) as a superior mode of extraction. Alternatively, another configuration of solid phase microextraction (SPME) namely hollow fiber-solid phase microextraction (HF-SPME) is a great approach to redress some limitations of the ordinary SPME fibers including fiber breakage, coating stripping and sample carry over. The HF-SPME technique highlights the use of hollow polypropylene (PP) membrane to hold and protect the adsorbent inside its lumen. Unlike the conventional SPME, the inexpensive HF device can be disposed after single use. Introducing extracting phase via sol-gel technology has gained great interest owing to its simple preparation method and promising way to obtain materials with good characteristics. In the present work, a new hybrid silica material based on methyltrimethoxysilane-(3-mercaptopropyl)trimethoxysilane (MTMOS-MPTMOS) was introduced as a new extractant of HF-SPME and the effectiveness of the proposed method was tested for analysis of hexanal and heptanal as the target VOC analytes. Preparation of the HF-SPME MTMOS-MPTMOS was simple in which the hybrid material was synthesized via sol-gel method and was self-polymerized in small segments of HF. Parameters affecting the efficiency of the HF-SPME MTMOS-MPTMOS in extracting both aldehydes were thoroughly investigated and analyzed by gas chromatography-flame ionization detection (GC-FID). It was found that the highest efficiency was achieved as the extraction was conducted in 30 min at a stirring rate of 1000 rpm in a 10 mL of sample solution whereby the back-extraction was performed via vortex for 3 min using 100 µL methanol as desorption solvent. Under the optimal conditions, linearity was observed over a range of 0.020-10.00 µg mL-1 with detection limits of 0.015 µg mL-1 and 0.010 µg mL-1 for hexanal and heptanal, respectively. The applicability of the HF-SPME MTMOS-MPTMOS for analysis of hexanal and heptanal in human urine sample was proven from the quantitative recoveries (> 90%) achieved. The HF-SPME MTMOS-MPTMOS offers an attractive alternative for rapid and convenient extraction tool and showed good potential for analysis of hexanal and heptanal from aqueous samples. New methyltrimethoxysilane-(3-mercaptopropyl)- trimethoxysilane coated hollow fiber-solid phase microextraction for hexanal and heptanal analysis.
A Software Improvement Technique for Platinum Resistance Thermometers

Temperature measurement is essential in industries. The advantages of resistance temperature detectors (RTDs) are high sensitivity, repeatability, and long-term stability. The measurement performance of this thermometer is of concern. The connection between RTDs and a novel microprocessor system provides a new method to improve the performance of RTDs. In this study, the adequate piecewise sections and the order of polynomial calibration equations were evaluated. Systematic errors were found when the relationship between temperature and resistance for PT-1000 data was expressed using the inverse Callendar-Van Dusen equation. The accuracy of these calibration equations can be improved significantly with two piecewise equations in different temperature ranges. Two datasets of the resistance of PT-1000 sensors in the range from 0 °C to 50 °C were measured. The first dataset was used to establish adequate calibration equations with regression analysis. In the second dataset, the prediction temperatures were calculated by these previously established calibration equations. The difference between prediction temperatures and the standard temperature was used as a criterion to evaluate the prediction performance. The accuracy and precision of PT-1000 sensors could be improved significantly with adequate calibration equations. The accuracy and precision were 0.027 °C and 0.126 °C, respectively. The technique developed in this study could be used for other RTD sensors and/or different temperature ranges.
On Exact/Approximate Reduction of Dynamical Systems Living on Piecewise linear Partition

Order reduction problem for dynamical systems living on piecewise linear partitions is addressed in this paper. This problem is motivated by analysis and control of hybrid systems. The technique presented is based on the transformation of affine dynamical systems inside the cells into a new structure and it can be applied for both exact reduction and also approximate model reduction. In this method both controllability and observability of the affine system inside the polytopes are considered for the reduction purpose. The framework is illustrated with a numerical example.
An Evaluation and Examination of Quiz Tool within Open-Source Learning Management Systems

Most open-source learning management systems are equipped with a quiz tool, which plays an important role in measuring and evaluating the achievements of a student in a particular e-course. Currently, numerous open-source LMSs are available in the market. In this study, some analysis and comparisons were made between the most used open-source LMSs, including Moodle, ATutor, Eliademy, Sakai, Dokeos, ILIAS, OpenOLAT and Opigno. The study is mainly based on the functionality of the quiz tool that is available within the selected LMSs. This paper study and evaluate the availability of certain features that are divided into sub-categories: questions, result/feedback and quiz setting features.
Clinical outcome of post-abortion intrauterine contraceptive device insertion

The return of fertility after an abortion is good and 83% of women who had an abortion ovulate during the first menstrual cycle following the abortion and ovulation may occur as early as 8-10 days after an induced abortion. After induced abortion, a women’s motivation to use contraception may be high and for women who had limited access to a clinician, abortion care may provide a unique opportunity to address a women’s need for contraception.
Isolation and Analysis of a Novel Gene , HXC-26 , Adjacent to the rab GDP Dissociation Inhibitor Gene Located at Human Chromosome Xq 28 Region

We screened potential promoter regions from . /Votl-linking cosmid clones mapped on human chromosome Xq28 region with our constructed trapping vector and isolated six fragments containing transcription activity. Using one of the obtained fragments as a probe, a novel gene was isolated by screening a human skeletal muscle cDNA library. The isolated cDNA, termed HXC-26, contained an open reading frame of 975 nucleotides encoding 325 amino acids (38,848 Da). The HXC-26 gene was composed of 13 exons that span ~ 8 kb. Several potential GC boxes were found in the putative promoter region, but no typical TATA box. The HXC-26 gene associated with a CpG island was located adjacent to the rab GDP dissociation inhibitor (GDI) gene.
Targeting the Maximum Outlet Temperature of Solar Collectors

The aim of this work is to show the construction and application of design curves for solar collector networks of the flat plate type. The design curves display two important design parameters: delivery temperature and the minimum number of solar collectors in series to achieve that target temperature. Given the complex nature in which the various ambient and operating parameters interact to determine the thermal performance, it is justifiable to develop quick and reliable design methodologies to estimate the collector surface area required for a given industrial application. Since a solar thermal plant operates under intermittent conditions, it recognised that it must exhibit a flexible design to allow it to deliver the required thermal duty (load and temperature) under any set of ambient conditions. When establishing the number of collectors required for a given duty, the question to answer is if the system should be sized based on the most favourable ambient conditions or on the least favourable. This problem becomes an optimization problem but before such an approach is undertaken, some design and operating criteria must be established. This paper seeks to establish these criteria based on the concept of maximum outlet temperature attainable with the minimum number of solar collectors. A graphical representation of these two parameters is presented and a design approach of solar collector networks taking advantage of the manipulation of inlet temperature is demonstrated. The plots are derived for design parameters such as solar radiation, mass flow rate and inlet temperature using an experimentally validated thermal model. The approach is demonstrated on flat plate collector technology, but it can be extended to any other type of low temperature solar technology.
All-sky RR Lyrae Stars in the Gaia Data

The second Gaia data release is expected to contain data products from about 22 months of observation. Based on these data, we aim to provide an advance publication of a full-sky Gaia map of RR Lyrae stars. Although comprehensive, these data still contain a significant fraction of sources which are insufficiently sampled for Fourier series decomposition of the periodic light variations. The challenges in the identification of RR Lyrae candidates with (much) fewer than 20 field-of-view transits are described. General considerations of the results, their limitations, and interpretation are presented together with prospects for improvement in subsequent Gaia data releases.
Quantification of Waste Generation in the EU - A PPCA and regression analysis on prediction of recyclable waste

In this study, data of the generation of recyclable wastes from the EU member states, and possible explaining factors for describing this generation, are examined through a combination of Probabilistic Principal Component Analysis (PPCA) and multivariate regression analysis. The purpose is to identify some of the biggest contributors to the generation of recyclable wastes, and, based on these contributors, find a linear function that describes the generation of different recyclable wastes, as well as assess the predictive power of this function. Initially, PPCA was used to reduce the number of datasets in order to include only the most important explaining factors. Later, multivariate regression analysis was used to define the coefficients of the waste-generation function. This function describes just above 86% of the total waste generation of recyclables, and an average of nearly 68% of the generation of the individual wastes. The generation of paper and cardboard, glass and plastic are well described by the function. The generation of rubber, textile and wood are less well described. This study points out GDP, primary energy consumption, LMP expenditure and low education level as important predictors of the waste generation of recyclable wastes. These four factors are also important to consider in the future, as they could help define areas of particular interest in the strive towards a sustainable society. (Less)
Based on FDM numerical simulation research on the factors influencing heat release in wet airway

Received: 27 May 2017 Accepted: 5 March 2018 The objective of the paper is to figure out the influence factors of surrounding rock heat release in wet airway. Firstly, based on the heat and moisture exchange theory between airflow and the surrounding rock in coal mine, the more reliable method of calculating the surrounding rock heat release in wet airway is put forward in theory, and the finite difference method is applied to calculate numerical simulation results. Accordingly the change rule of surrounding rock heat release under this condition is presented. Finally the influences of ventilation time, wetness factor and the like on the surrounding rock heat release are analyzed in detail. The research results indicate that, 1) the sensible heat, latent heat and total heat loss decrease with the increase of ventilation time, the decreasing amplitude gradually small; 2) wetness factor has a strong effect on surrounding rock heat release, and the sensible heat decreases with the increase of wetness factor, while the latent heat and total heat increase with it.
An exploration of the relationships between student racial background and the school sub-contexts of office discipline referrals: a critical race theory analysis

Abstract A growing body of research indicates that exclusionary school discipline practices disproportionately impact students of color. Some scholars have theorized that racial disparities likely vary across school sub-contexts, as implicit bias in perceptions of student behavior may be more influential in locations where students and adults have weaker relationships (e.g. bathrooms and hallways, compared to the classroom). Guided by Critical Race Theory, this study used administrative data from a large urban school district (n = 20,166 discipline incidents, 9,170 students, and 185 schools) to consider the relationship between student race and the locations where youth are disciplined. Results indicate that Black, Latino/a, and Multiracial youth were no more likely than White students to have a discipline incident take place outside the classroom. These findings suggest attention is needed to the role of systemic bias and colorblind policies and practices in discipline disparities.