Miracle-dz/UniFAR-FTUs huggingface dataset:
Determinants of severe acute malnutrition among children aged 6–59 months in the pastoral community of Liban District, Guji Zone, Oromia Regional State, Southeastern Ethiopia: a case–control study

Abstract Malnutrition remains one of the most common causes of morbidity and mortality among children, particularly in Ethiopia. The present study aimed to assess determinants of severe acute malnutrition among children aged 6–59 months in the pastoral community of Liban District, Southeastern Ethiopia. A case–control study design was conducted on 89 cases and 177 controls from 1–30 December 2020. A simple random sampling technique was used to select study participants. Data collected using interviewer-administered structured questionnaire were used, and anthropometric measurements were done by standardised calibrated instruments to collect data. Data were entered into EPI data version 3.1 and then exported to SPSS version 25.0 software for analysis. All candidate variables with P < 0⋅25 in bivariate analysis were then entered into multivariable logistic regression. Associated factors were identified at P < 0⋅05 and 95 % CI. A total of 266 (89 cases and 177 controls) having a response rate of 96⋅6 % being underweight [adjusted odds ratio (AOR) = 11⋅8, 95 % CI 3⋅17, 43⋅89], illness previous 2 weeks (AOR = 3⋅47, 95 % confidence interval (CI) 1⋅34, 8⋅99), family member with malnutrition (AOR = 4⋅52, 95 % CI 1⋅45, 14⋅01), greater than five family size, (AOR = 5⋅33, 95 % CI 2⋅08, 13⋅66), mothers unable to read and write (AOR = 3⋅66, 95 % CI 1⋅27, 10⋅56), mothers with low decision autonomy (AOR = 5⋅67, 95 % CI 2⋅26, 14⋅27), not handwashing at all critical time (AOR = 7⋅23, 95 % CI 2⋅74, 19⋅07), not feeding child animal source (AOR = 7⋅13, 95 % CI 1⋅98, 25⋅59), bottle feeding (AOR = 7⋅06, 95 % CI 2⋅34, 21⋅28) and being married (AOR = 0⋅05, 95 % CI 0⋅02, 0⋅19) were significantly associated with acute malnutrition. The present study has confirmed the association of acute malnutrition with maternal education, underweight, family size and inappropriate infant caring practices.
Free vibration analysis of industry-driven woven fiber laminated carbon/epoxy composite beams by experimental and numerical approach

The free vibration study of industry-driven woven fibre laminated carbon/epoxy composite beam is addressed through experimental and numerical modal analysis in the present research work. The experimental modal analysis is performed using the vibration Fast Fourier Transform (FFT) analyser and the natural frequencies are realized in the PULSE environment. A linear beam model is simulated in ABAQUS finite element (FE) software, adopting a solid deformable 8-nodded element with five degrees of freedom (DOF) per node from the ABAQUS library for numerical computation of natural frequencies. A satisfactory agreement is achieved between the experimental and numerical results. The effects of ply-orientation, number of plies, lamination scheme and aspect ratios with different boundary conditions on the natural frequencies are studied. The results confirmed that the predicted vibration characteristics of laminated composite beams are sensitive to the adopted parameters for the investigation. The present study will help to understand the dynamic behaviour for laminated composite beams and serve as an experimental benchmark result within the frequency domain.
Challenges of Parenting Early Adolescents

While research has focused on the challenges of parenting children of toddler or preschool age, or of children with specific conditions, there is a paucity of research exploring parents’ experiences of the challenges of parenting early adolescents. This research explored mothers’ experience of the challenges in parenting their early adolescent children. Thematic analysis of semi-structured interviews with eight mothers indicate that the mothers experienced early adolescence as a period of significant change and challenge for their children and themselves. They framed “good” mothers as those who actively supported their children, prioritized their children’s needs over their own, and disguised their negative emotions. Mothers reported feelings of guilt and failure at falling below perceived parenting standards. Lack of partner and school support and understanding and time constraints were identified as exacerbating factors. This research contributes to a greater understanding of mothering experiences and offers important implications for the support of adolescents and their mothers.
The Value of the Structural Power of the Chief Information Officer in Enhancing Forward-Looking Firm Performance*

ABSTRACT Drawing on the resource-based view (RBV) of the firm and the top management team (TMT) structural power framework, we investigate the relationship between Chief Information Officer (CIO) structural power and forward-looking firm performance. In addition, we examine the contingency roles of market turbulence, industry IT intensity, and operating efficiency in shaping the above relationship. Using a sample of 7,185 firm-year observations and a panel fixed-effects model, we find that CIO structural power is positively associated with forward-looking firm performance (proxied by Tobin’s q). Further, our results suggest that the benefits of CIO structural power are higher under greater market turbulence, higher industry IT intensity, and greater operating efficiency. Our empirical results imply that the board of directors should consider endowing CIOs with a higher structural power, especially when an organization faces greater volatility in industry sales, competes in a more IT-intensive industry, and operates at a more efficient level. This research contributes to the RBV literature and integrates RBV and structural power frameworks to offer newer insights into the contemporary role of an important TMT member, the CIO.
The Comparative Performance of Online Referral Channels in E-Commerce

ABSTRACT The means by which e-commerce websites can reach and track online customers have expanded enormously through the use of various digital marketing referral channels. However, evaluating comparative effectiveness and return on investment (ROI) across different referral channels remain difficult undertakings for many companies. This study aims to contribute to this line of investigation by quantifying the relative effectiveness, the dynamics, and the interdependencies among three types of major online referral channels: search engines, social media, and third-party websites. To this end, we employ the vector autoregressive (VARX) model on a large-scale clickstream dataset and have the following findings. Though search engine referrals demonstrate strong impact on sales, our results show that social media referrals have the strongest immediate and cumulative effects on e-commerce websites’ conversion rates. Our results also demonstrate the synergies and interdependencies across these channels. This study contributes to the multi-channel analytics literature and sheds new light to digital marketing managers on assessing the cumulative impact and the economic value of online referral channels.
Corporate ethical values and ethical work climate influences on employees’ helping behaviour in a developing country’s banking sector setting

This study investigated the influence of corporate ethical values and work ethical climate on employees’ helping behaviour. A convenience sample (n= 421) of employees at a bank in the Democratic Republic of Congo were participants (female = 32.5%). The employers completed the following standardised measures: The Corporate Ethical Values Scale (CEVS), the Work Ethical Climate Questionnaire (WECQ), and the Employees’ Helping Behaviour Scale (EHBS). The structural modelling analysis results indicated employee perceptions of corporate ethical values and work ethical climate to predict their helping behaviour, overall. Additionally, the results indicate that corporate ethical values and caring, rule, and instrumental were predictive of helping behaviour. Furthermore, the results indicate higher levels of education and seniority to predict higher levels of ethical value and instrumental helping behaviours. Human resource managers should provide resources that support a pro-employee corporate culture for employees to have a sense of workplace ‘family’ belonging.
Competitive Brokerage: How Information Management Capability And Collaboration Networks Act As Substitutes

ABSTRACT IT-based information management and collaboration networks are both important sources of competitive information. Despite anecdotal evidence, limited research examines their contemporaneous impact on firms’ ability to compete effectively. We take an information asymmetry perspective to examine the mechanisms through which the firm’s information management capability and the structure of its collaboration network influence the structure of its competition network in product markets. We argue that taking a brokerage position in competition networks has a positive influence on a firm’s performance. We then explain how the firm’s information management capability and its position in collaboration networks each have a direct positive influence on its brokerage position in the competition network. Finally, we propose that information management capability and a central position in collaboration networks act as substitutes. We empirically test our model using a longitudinal competition network, a longitudinal collaboration network, and longitudinal secondary data about firms’ information management capability, drawn from 262 firms over a 15-year period. Our findings, robust to endogeneity concerns and alternative model specifications, reveal the direct and substitution effects of information management capability and collaboration networks on competition networks. This research contributes to the information systems and strategy literatures by offering insights into how IT enables firms to design competitive strategies by facilitating analyses of competitors’ information, and how the information gained by firms as they collaborate can enhance their ability to compete.
Designing Online Virtual Advisors to Encourage Customer Self-disclosure: A Theoretical Model and an Empirical Test

ABSTRACT Virtual advisors (VA) are tools that assist users in making decisions. Using VAs necessitates the disclosure of personal information, especially when they are employed in personalized contexts such as healthcare, where disclosure is vital to providing valid and accurate advice. Yet, extant research has largely overlooked the factors that encourage or inhibit users’ from disclosing to VAs. In contrast, this study investigates the determinants of users’ intentions to self-disclose, and examines how VAs can be designed to enhance these intentions. The results of a study in the context of skin care advice reveal that the intention to disclose to a VA is not only the product of a rational process, but that perceptions of the VA and the relationship with it are important. The results further show that a parsimonious set of design elements can be used to endow a VA with desired characteristics that enhance the willingness to disclose. The study contributes to our understanding of the factors influencing users’ intentions to provide personal information to a VA, which extend beyond the expected benefits and costs. The study further demonstrates that social exchange theory can be applied in contexts in which humans are interacting with automated VAs.
Distance Education: An Overview of Distance Education in Turkey

Distance education is a major instruction system that provides broad education. This paper introduces the distance education, overviews its history and examines distance education ; especially the Open Education Faculty which is the most important institution in Turkey. In addition, statistics about usage of Internet and computer, last improvements about distance education, and attempts in online education in Turkey are also analyzed.
Tadr is an axonal histidine transporter required for visual neurotransmission in Drosophila

Neurotransmitters are generated by de novo synthesis and are essential for sustained, high-frequency synaptic transmission. Histamine, a monoamine neurotransmitter, is synthesized through decarboxylation of histidine by Histidine decarboxylase (Hdc). However, little is known about how histidine is presented to Hdc as a precursor. Here, we identified a specific histidine transporter, TADR (Torn And Diminished Rhabdomeres), that is required for visual transmission in Drosophila. TADR and Hdc co-localized to neuronal terminals, and mutations in tadr reduced levels of histamine, thus disrupting visual synaptic transmission and phototaxis behavior. These results demonstrate that a specific amino acid transporter provides precursors for monoamine neurotransmitters, providing the first genetic evidence that a histidine amino acid transporter plays a critical role in synaptic transmission. These results suggest that TADR-dependent local de novo synthesis of histamine is required for synaptic transmission.
Non-Destructive Evaluation of the Mechanical Behavior of Chestnut Wood in Tension and Compression Parallel to Grain

This article addresses the evaluation of the strength and stiffness of chestnut wood, in tension and compression parallel to the grain, using different non-destructive techniques (ultrasounds, Resistograph® and Pilodyn 6J). Approximately 200 timber specimens (divided into compression and tension tests) were tested up to failure, comprising recently sawn timber (which is now available on the market for structural purposes) and what was called old wood, obtained from structural elements belonging to ancient buildings. The possibility of predicting wood properties by application of non-destructive techniques is discussed based on simple linear regression models. Extrapolation of regression models obtained from recent cut wooden material to that obtained from old timber beams is analyzed. The results show reasonable correlations between mechanical elastic properties and non-destructive techniques (ultrasounds, Resistograph® and Pilodyn 6J). New and old wood mechanical data exhibited a scattered cloud of points, implying in terms of assessment of properties of timber elements in service by regression models that these models should not be supported only on data from recently sawn wood. Therefore, models combining information from new and old wood specimens are proposed based on lower 95% confidence limits of regression lines.
Behaviour of CFRP-strengthened slender square RC columns

The objective of this paper is to investigate the performance of slender square reinforced concrete (RC) columns strengthened with carbon fibre reinforced polymer (CFRP) jackets subjected to eccentric loading. Tests were conducted on eight RC columns strengthened with CFRP jackets, and another eight unstrengthened ones served as reference specimens. The main variables explored in this test programme include: (a) load eccentricity (0–150 mm); (b) with or without CFRP strengthening; and (c) CFRP configuration (unidirectional and bidirectional). Compared to those unstrengthened RC specimens, the test results showed that no obvious strength increase was observed for specimens confined by unidirectional CFRP jackets, while an increase of 22·8–61·8% was obtained for those strengthened by bidirectional CFRP jackets. The longitudinal fibres were effective in enhancing load-carrying capacity of slender RC columns subjected to eccentric loading.
Modifications of Grapevine Berry Composition Induced by Main Viral and Fungal Pathogens in a Climate Change Scenario

The grapevine is subject to high number of fungal and viral diseases, which are responsible for important economic losses in the global wine sector every year. These pathogens deteriorate grapevine berry quality either directly via the modulation of fruit metabolic pathways and the production of endogenous compounds associated with bad taste and/or flavor, or indirectly via their impact on vine physiology. The most common and devastating fungal diseases in viticulture are gray mold, downy mildew (DM), and powdery mildew (PM), caused, respectively by Botrytis cinerea, Plasmopara viticola, and Erysiphe necator. Whereas B. cinerea mainly infects and deteriorates the ripening fruit directly, deteriorations by DM and PM are mostly indirect via a reduction of photosynthetic leaf area. Nevertheless, mildews can also infect berries at certain developmental stages and directly alter fruit quality via the biosynthesis of unpleasant flavor compounds that impair ultimate wine quality. The grapevine is furthermore host of a wide range of viruses that reduce vine longevity, productivity and berry quality in different ways. The most widespread virus-related diseases, that are known nowadays, are Grapevine Leafroll Disease (GLRD), Grapevine Fanleaf Disease (GFLD), and the more recently characterized grapevine red blotch disease (GRBD). Future climatic conditions are creating a more favorable environment for the proliferation of most virus-insect vectors, so the spread of virus-related diseases is expected to increase in most wine-growing regions. However, the impact of climate change on the evolution of fungal disease pressure will be variable and depending on region and pathogen, with mildews remaining certainly the major phytosanitary threat in most regions because their development rate is to a large extent temperature-driven. This paper aims to provide a review of published literature on most important grapevine fungal and viral pathogens and their impact on grape berry physiology and quality. Our overview of the published literature highlights gaps in our understanding of plant-pathogen interactions, which are valuable for conceiving future research programs dealing with the different pathogens and their impacts on grapevine berry quality and metabolism.
Spatiotemporal Evolution and Genesis of the Late Ordovician—Early Silurian Marine Euxinia in Northeastern Upper Yangtze Basin, South China

Marine redox conditions and their dynamic changes were a major factor that controlled the formation of black shale and caused the late Ordovician marine extinction in the Upper Yangtze Basin (South China). However, the spatiotemporal variation and potential controlling factors of marine redox conditions in this area remain unclear. We analyzed whole-rock geochemistry and pyrite sulfur isotopes (δ 34Spy) of 47 shale samples from the Late Katian to Rhuddanian in a shelf-to-slope (Qianjiang Shaba section and Wc-1 well) region of northeastern Upper Yangtze Basin, and reconstructed water column redox conditions during the Late Ordovician–Early Silurian Transition. The geochemical characteristics of shale, including the ratio of elements, discriminant function and ternary diagram location in the study area suggest a passive continental margin sedimentary environment, wherein the terrigenous detritus is mainly derived from felsic igneous rocks in the upper crust, showing characteristics of near-source deposition. The redox indices (Fe speciation, Corg/P, UEF, and MoEF) showed that the development of anoxic water, especially euxinia, has obvious spatiotemporal heterogeneity. Under conditions of high availability of active organic carbon and limited sulfate supply, high active Fe input and strong biological irrigation in the shallow water area may effectively remove H2S produced by microbial sulfate reduction, conducive to the prevalence of ferruginous water columns. However, for this deep water area, the rapid accumulation rate of organic matter, decrease in dissolved Fe (caused by upwelling in the open sea), and seawater stratification (caused by the rising of sea level) promoted the development of a euxinic water column. This inference is supported by the covariant relationship between organic carbon accumulation rate, chemical index of alteration, Co × Mn, and δ 34Spy. Our study highlights the potential control effects of sea level change, continental weathering and upwelling on the development of euxinic water columns.
Low Dose Chronic Angiotensin II Induces Selective Senescence of Kidney Endothelial Cells

Angiotensin II can cause oxidative stress and increased blood pressure that result in long term cardiovascular pathologies. Here we evaluated the contribution of cellular senescence to the effect of chronic exposure to low dose angiotensin II in a model that mimics long term tissue damage. We utilized the INK-ATTAC (p16Ink4a–Apoptosis Through Targeted Activation of Caspase 8) transgenic mouse model that allows for conditional elimination of p16Ink4a -dependent senescent cells by administration of AP20187. Angiotensin II treatment for 3 weeks induced ATTAC transgene expression in kidneys but not in lung, spleen and brain tissues. In the kidneys increased expression of ATM, p15 and p21 matched with angiotensin II induction of senescence-associated secretory phenotype genes MMP3, FGF2, IGFBP2, and tPA. Senescent cells in the kidneys were identified as endothelial cells by detection of GFP expressed from the ATTAC transgene and increased expression of angiopoietin 2 and von Willebrand Factor, indicative of endothelial cell damage. Furthermore, angiotensin II induced expression of the inflammation-related glycoprotein versican and immune cell recruitment to the kidneys. AP20187-mediated elimination of p16-dependent senescent cells prevented physiologic, cellular and molecular responses to angiotensin II and provides mechanistic evidence of cellular senescence as a driver of angiotensin II effects.
Unusual Chemical Processes in Interstellar Chemistry: Past and Present

The chemistry that occurs in interstellar clouds consists of both gas-phase processes and reactions on the surfaces of dust grains, the latter particularly on and in water-dominated ice mantles in cold clouds. Some of these processes, especially at low temperature, are very unusual by terrestrial standards. For example, in the gas-phase, two-body association reactions form a metastable species known as a complex, which is then stabilized by the emission of radiation under low-density conditions, especially at low temperatures. In the solid phase, it has been thought that the major process for surface reactions is diffusive in nature, occurring when two species undergoing random walks collide with each other on a surface that has both potential wells and intermediate barriers. There is experimental evidence for this process, although very few rates at low interstellar temperatures are well measured. Moreover, since dust particles are discrete, modeling has to take account that reactant pairs are on the same grain, a problem that can be treated using stochastic approaches. In addition, it has been shown more recently that surface reactions can occur more rapidly if they undergo any of a number of non-diffusive processes including so-called three-body mechanisms. There is some experimental support for this hypothesis. These and other unusual gaseous and solid-state processes will be discussed from the theoretical and experimental points of view, and their possible role in the synthesis of organic molecules in interstellar clouds explained. In addition, their historical development will be reviewed.