Miracle-dz/UniFAR-FTUs huggingface dataset:
Effect of Lubrication on Friction and Wear Properties of PEEK with Steel Counterparts

Poly-Ether-Ether-Ketone (PEEK) has been widely used for tribological applications with steel counterparts because of its superior mechanical and self-lubricating properties. Lubrication has the potential to further improve its performance. However, lubrication can have positive or negative effects depending on the operating conditions and little is known about the mechanism of lubrication. To elucidate these aspects, the friction and wear properties of the PEEK/steel contact in both dry and poly-α-olefin (PAO) lubricated conditions were investigated by tribological tests and surface analytical techniques. The nanoindentation measurements showed that lubrication with PAO had a softening effect on the wear track of PEEK, but no correlation was established with the wear of PEEK. The tribological behavior, for both dry and lubricated contacts, was correlated with the formation of PEEK transfer films on the steel counterparts. The thickness of these films, as determined by Electron Probe Micro Analysis (EPMA) and X-ray Photoelectron Spectroscopy (XPS), was controlled by the rates of their transfer and removal and depended on the operating conditions. Moreover, lubrication with PAO not only inhibited the transfer but also suppressed the removal of PEEK films. This study thus sheds light on the mechanism of lubrication of the PEEK/steel contact.
Palatal Rugoscopy: A new era for forensic identification

Aims and Objectives: To observe and compare the distribution of various palatal rugae patterns in western and northern Indian populations and to study the variations in male and female subjects respectively. Materials and Methods: The study consisted of 100 subjects, 50 each from the two groups of geographically different regions of western and northern India. After obtaining informed consent, an alginate impression of maxillary arch was made for interpretation. The number, type, and unification were followed according to Thomas and Kotze′s classification and the shape was recorded according to Kapali et al.′s classification. Results: The shape of rugae was compared between the two study groups and was found to be highly significant between western Indian and northern Indian subjects. The number and shape of rugae differed significantly between the genders, with males having a highly significant difference as compared to the females. The western Indian group showed wavy shape predominantly in males and females had straight rugae. Similarly, the northern Indian male participants also had wavy shape; however, females in this group had more curved shaped rugae. Conclusion: The uniqueness of palatal rugae pattern can be utilized similar to fingerprints and when combined with other methods, it can help in the identification of a person.
Collaboration, Coordination, and Cooperation Among Organizations: Establishing the Distinctive Meanings of These Terms Through a Systematic Literature Review

Collaboration, coordination, and cooperation lie at the core of interorganizational activities. To address the confusion regarding the definitions of these three terms, recent works have proposed redefinitions. Although these proposals address an important concern, we believe that they might be premature because (1) they do not build on a systematic examination of how these terms have been used in the literature and (2) they seem to narrow the focus to a given theory and alliances only, which might unduly restrict the meaning of the terms defined. In this paper, we review the definitions of the three terms as they appear in nine top journals in the general management literature (1948-2017). By studying the definitions, we identify three interactional dimensions that are present to different extents in collaboration, coordination, and cooperation: attitude, behavior, and outcome. Our systematic review confirms the confusion and lack of parsimony in the extant definitions. The overlap in the content of these dimensions across the three terms does not provide a basis for distinctively defining collaboration, coordination, and cooperation. Thus, we further draw on our review to identify two discriminating dimensions that allow us to distinguish these three terms: the temporal stage and the type of goal. Our review contributes to theoretical development by offering a conceptual redefinition of the three terms that renders them distinct and thus facilitates knowledge accumulation and theory development. Moreover, the set of interactional and discriminating dimensions generates a host of managerially relevant research questions about a wide range of interorganizational relationships.
Incentivizing Regulatory Participation: Effectiveness of a Fundraising Levy

In the absence of a statutory instrument to enforce payment of a regulatory fee, regulators are reliant on a combination of ‘carrots’ and ‘sticks’ to encourage financial contribution by the bodies they oversee. In contrast to extant studies of public funding of nonprofits, we empirically evaluate the effectiveness of a government policy to rely on nonprofit funding of statutory regulation. We exploit a sharp discontinuity in the eligibility threshold for charities contributing to a new Fundraising Regulator in England & Wales in order to estimate a causal effect of the levy on participation. We show that the regulator’s threat to ‘name and shame’ was very effective in incentivizing regulatory participation and generating income, but raise some concerns about the long-term viability of this approach. The results are significant at a time when many jurisdictions are considering how best to fund the regulation of nonprofits.
La formación de la competencia digital en los docentes

El presente trabajo describe la brecha entre la formacion en la Competencia Digital (CD) que recibe y la que deberia recibir el docente de Educacion Primaria de la provincia de Castellon (Espana), para dar respuesta a las necesidades de ensenanza aprendizaje del ciudadano en la actualidad. Esta descripcion se ha realizado considerando la perspectiva de los expertos en esta materia y de los docentes de dicho nivel educativo con un diseno de investigacion que combina la metodologia cuantitativa de caracter descriptivo, exploratorio y de corte transversal y, la metodologia cualitativa de corte etnometodologico. Para ello, se han empleado tecnicas cuantitativas y cualitativas de investigacion. Han participado del estudio 289 docentes de Educacion Primaria y 29 expertos en la CD y comunicacion. Se ha caracterizado la formacion inicial y continua del profesorado, las opiniones y, las necesidades formativas del ciudadano de las primeras decadas del siglo XXI, con relacion a las Tecnologias de la Informacion y la Comunicacion (TIC). Los resultados muestran un deficit de formacion en la CD de los docentes derivado de una oferta formativa puramente instrumental y teorica sobre las TIC, carente de un aprendizaje basado en la resolucion de problemas, la gestion de la sobreinformacion, la posesion de sentido critico y de conciencia etica, entre otras necesidades. Por ello, la comunidad docente y los agentes responsables de la gestion y toma de decisiones sobre el ambito educativo deberian considerar la formacion del docente en CD basada en la gestion de la informacion y el aprendizaje participativo.
The Importance of Skeletal Muscle Strength to Physical Function in Older Adults

It is intuitive that strength is a determinant of physical function, and hence, logical to ask whether age-related decline in strength is an important cause of functional impairment in older adults. Interestingly, the few studies which address this question report inconsistent results and often fail to find a strong relationship between strength and function. It appears that several theoretical issues about the relationship between strength and function are not widely appreciated: (a) the relationship between strength and function is specific for physical function; (b) relative strength is more closely related to function than absolute strength; (c) the relationship should be curvilinear and involves a threshold; and (d) the threshold strength required for good function is activity-specific. Analysis of existing data supported the importance of these concepts. However, whether strength training can improve functional status in older adults is unclear. Rigorously designed randomized controlled trials are needed that address whether long-term effects of exercise on functional status are possible, and how best to promote adherence to exercise in older adults.
Role of Helicobacter Pylori in Nasal Polyp Formation: A Case-control Study in Tehran, Iran

Background and objective: The etiological factors for nasal polyps include infection, inflammation or an imbalance of a metabolic pathway. This study was designed to compare serum Helicobacter pylori antibodies and H. pylori–DNAs between cases of nasal polyp and controls (nasal fracture). Patients and methods: This case control study was carried out in ENT Department of Rasul Hospital in Tehran (2007-2008), upon nasal polyp tissues in 62 cases and inferior nasal turbinate mucosa in 25 controls. H. pylori–DNAs were searched by qualitative polymerase chain reaction (PCR) and serum specific H. pylori antibodies (ELISA IgG and IgA). Comparative tests were performed for the 2 groups, and P value < 0.05 was considered as statistically significant. Results: The mean age of cases and controls were 37.5 ± 13.7 and 31 ± 11.5 years, respectively. H. pylori– DNA was found in 32.3% (20/62) of the cases and 4% (1/25) of the controls (P value = 0.005). Serum H. pylori antibody (IgA) was found in 14.5% (9/62) of the cases and 4% (1/25) of the controls (P value = 0.27). However, previous immunity (IgG) was higher in 71% of the cases and 32% of the controls (P = 0.001). Conclusion: H. pylori infection may play a key role in the formation of nasal polyps. We recommend the PCR as the best method of searching for H. pylori infection. However, from the data obtained in this investigation it could not be determined whether or not H. pylori play a pathogenic role. Long-term antibiotics treatment in cases with nasal polyp, especially in cases with severe chronic rhinosinusitis where patients do not respond to surgery or steroids, may be useful. More randomized controlled trial (RCT) studies are necessary to validate the role of H. pylori infection in nasal polyp and the effect of antibiotics for eradication of H. pylori infection. DOI : 10.14302/issn.2379-8572.joa-15-814 Corresponding author: Dr Mohammad Farhadi, ENT –Head & Neck surgery Reseach Center, 4th floor Rasoul Hospital, Niayesh street, Satarkhan Avenue, Tehran, 14455 Islamic Republic of Iran E-mail: Farhadi@ent-hns.org Phone number: +982166525328. Tel Fax: +982166516049.
Effect of maternal weight on fetal outcome

Introduction: Pregnancy in chronically undernourished women with low maternal weight results in delivery of low birth weight babies. Aim of the Study: our aim was to study the correlation between maternal weight during pregnancy with fetal outcome measured in terms of fetal weight and perinatal mortality. Materials and Methods: This was a hospital based prospective study conducted in the department of obstetrics and gynecology in our teaching medical college and hospital over a period of 2 years extending from Jan 2011 - Dec 2012. All the cases delivering in this hospital were taken for this study. Total of about 1449 cases were taken for this study. Results: In this study the average weight of patients was found to be 51.88±7.64 kg. The mean birth weight was found to increase with increasing maternal weight. The difference in the mean birth weight was found to be statistically significant between the different groups (P 0.05). There was found to be a statistically significant increase in birth weight with increase in maternal third trimester weight from less than 45 kg to 55 kg. Differences in perinatal mortality between these groups were found to be statistically insignificant (P>0.05). Conclusion: There was statistically significant increase in mean birth weight with increase in maternal weight upto 60 kg. There was no correlation between perinatal mortality rate and maternal weight.
Primary Colors Red, Yellow, and Blue Use as Self-Cleaning Paints with Layer of Titanium Dioxide

Transparent nano- coating was prepared by Sol-Gel method from titanium dioxide TiO2 which has the ability to self-cleaning coating used for hospitals, laboratories, and places requiring permanent sterilization. Three primary colors are selected (red, blue, and yellow) as preliminary study to the effect of these colors on the nano-coating. Three traditional oil paints color were used as base, then coated by a layer of TiO2-Sol and deposited on the paints. The optical properties of TiO2-Sol were measured; the maximum absorption wavelength at (λmax=387 nm), the refractive index (n=1.4423) and the energy band gap (Eg=3.2 eV). The structure properties found by X-ray diffraction of TiO2-Sol illustrated that TiO2-Sol is polycrystalline nanoparticle have anatase phase also the morphological properties measured by Scanning Electron Microscopy (SEM) obetained the average grain size of TiO2-Sol was (50.427 nm). Self-cleaning properties measured by tensiometer dives. The best color gave the highest response to self-cleaning is the yellow color where the contact angle before exposure to UV ( = 101.47o ,at t = 0 min) and after exposure over time ( = 1.75o ,at t = 50 min), thus the water sheet of the surface and remove all contaminants.
Breast cancer knowledge and participation in breast screening practices among Southeast Asian women living in Sydney

Objective: This study explores the factors that influence breast-screening participation in Southeast Asian (SEA) women living in Sydney. Internationally SEA women have displayed low participation in breast screening due to a lack of general breast cancer knowledge and knowledge regarding available screening practices. Ethnicity, socio-demographic and acculturation variables often shape perceptions regarding preventative health behaviour (breast screening) and impact on health belief measures, however the influence of these variables in an Australian setting is unknown. Design: A cross-sectional questionnaire-based study was conducted on a sample of 183 SEA women specifically Filipino, Indonesian, Thai and Vietnamese. Data on socio-demographic variables, knowledge and participation in breast screening were analysed using quantitative techniques in SPSS. Result: Filipino women demonstrated more knowledge than the other three ethnicities; however all ethnic groups demonstrated poor to average knowledge regarding breast cancer. Knowledge regarding breast cancer symptoms was significantly related to participation in mammography for each ethnic group. Notable barriers to breast screening included pain, being too time-consuming, lack of a GP recommendation and fear of cancer detection. Conclusion: The low participation demonstrated in these communities’ highlights the immediate need to initiate culturally sensitive health interventions for SEA women in Sydney, which can be used for other ethnic groups similar to the ones included in this study. It is essential to increase general breast cancer knowledge as it plays an important role in initiating breast screening.
Peran Parenting dalam Meningkatkan Literasi Kesehatan Ibu terhadap Stunting di Bangkalan Madura

Literasi kesehatan bagi ibu sangat penting terutama perihal gizi dan kesehatan anak, mengingat maraknya kasus stunting yang menimpa anak di Indonesia. Penyebab tingginya kasus stunting, khususnya di Bangkalan, Madura adalah pengetahuan ibu yang rendah dalam hal parenting (merawat, mendidik, membimbing). Penelitian ini bertujuan untuk: (1) mengetahui efektivitas kegiatan parenting education guna meningkatkan pengetahuan ibu muda terkait status gizi selama masa kehamilan, dan (2) mengetahui faktor pendukung dan penghambat dalam kegiatan parenting education . Penelitian ini menggunakan pendekatan mixed method (metode campuran) dengan teknik wawancara, dokumentasi, observasi, dan tes yang hasilnya akan dianalisis secara kualitatif dan kuantitatif. Hasil analisis data menunjukkan kegiatan parenting education untuk pencegahan stunting dinyatakan efektif berdasarkan perhitungan uji-t sehingga terdapat perbedaan signifikan antara pengetahuan ibu muda sebelum dan sesudah mengikuti parenting education .
A Connectivity-based Psychometric Prediction Framework for Brain-behavior Relationship Studies

The recent availability of population-based studies with neuroimaging and behavioral measurements opens promising perspectives to investigate the relationships between interindividual variability in brain regions’ connectivity and behavioral phenotypes. However, the multivariate nature of connectivity-based prediction model severely limits the insight into brain-behavior patterns for neuroscience. To address this issue, we propose a connectivity-based psychometric prediction framework based on individual regions’ connectivity profiles. We first illustrate two main applications: 1) single brain region’s predictive power for a range of psychometric variables 2) single psychometric variable’s predictive power variation across brain region. We compare the patterns of brain-behavior provided by these approaches to the brain-behavior relationships from activation approaches. Then, capitalizing on the increased transparency of our approach, we demonstrate how the influence of various data processing and analyses can directly influence the patterns of brain-behavior relationships. Such region-based prediction approach can hence contribute to neurobiological validity in the study of brain-behavior relationships.
Psychotherapeutic Work in Palliative Care

In palliative care, multi-professional teams work to improve and maintain the quality of life of terminally ill patients and their families. In this field, clinical psychologists and psychotherapists take on a broad variety of tasks that range from preventive and supportive to psychotherapeutic work. Even if the provision of palliative care frequently does not yet offer appropriate need-based care by psychologists and psychotherapists, developments to that effect are clearly noticeable. The aim of the present article is to give an overview of palliative care as an area of application for psychological and psychotherapeutic interventions. After depicting relevant features of palliative care, characteristic topics, strains, and mental disorders in palliative care will be briefly delineated. Finally, an overview of psychological and psychotherapeutic interventions for palliative care will be presented.
Arsenic Uptake and Depuration by Red Swamp Crayfish, Procambarus clarkii

Arsenic (As) is a metalloid and one of the most hazardous elements in the environment. Paddy rice field, which can contain elevated levels of arsenic, also have importance in crayfish production in Louisiana (USA) where crayfish/rice rotation farming is a common application. Such that, in the US, 95% of the total production of crayfish is carried out in Louisiana, and a large portion is consumed there. In this study, arsenic accumulation and depuration in the tissues of crayfish (Procamborus clarkii) exposed to different As concentrations were determined. For this purpose, crayfish were exposed to 3 different concentrations of As (0.2, 0,8 and 2 mg As L) for 14 days and then kept in As free water for following 14 days. Arsenic concentrations were determined in crayfish tissues (gill, muscle, exoskeleton, hepatopancreas) during both the accumulation (1, 3, 7 and 14th days) and depuration (15, 17, 21, and 28th days) phases. During the accumulation period, arsenic concentration in the tissues was found to increase proportionally with time and exposure concentrations: gill > hepatopancreas > exoskeleton > muscle. During this period, however, the arsenic concentration in the tissues did not reach the equilibrium. In the depuration phase, arsenic elimination varied ranging between 54.63-87.91% in the hepatopancreas, 42.69 to 74.21% in the gills, 35.56-73.55% in the exoskeletons and 26.75-49.84% in the muscles.
O-GlcNAcylation and oxidation contribute to atrial fibrillation in diabetes by activating CaMKII

Diabetes mellitus and atrial fibrillation (AF) are major unsolved public health problems, and diabetes is an independent risk factor for AF in patients. However, the mechanism(s) underlying this clinical association is unknown. Elevated protein O-GlcNAcylation (OGN) and reactive oxygen species (ROS) are increased in diabetic hearts, and calmodulin kinase II (CaMKII) is a proarrhythmic signal that may be activated by OGN (OGN-CaMKII) and ROS (ox-CaMKII). We induced type 1 (T1D) and type 2 diabetes (T2D) in a portfolio of genetic mouse models capable of dissecting the role of OGN and ROS at CaMKII and the type 2 ryanodine receptor (RyR2), an intracellular Ca2+ channel implicated as an important downstream mechanism of CaMKII-mediated arrhythmias. Here we show that T1D and T2D significantly increased AF, similar to observations in patients, and this increase required CaMKII. While T1D and T2D both require ox-CaMKII, they respond differently to loss of OGN-CaMKII. Collectively, our data affirm CaMKII as a critical proarrhythmic signal in diabetic AF, and suggest ROS primarily promotes AF by ox-CaMKII, while OGN promotes AF by diverse mechanisms and targets, including RyR2. However, the proarrhythmic consequences of OGN- and ox-CaMKII differ between T1D and T2D. These results provide new and unanticipated insights into the mechanisms for increased AF in diabetes mellitus, and suggest successful future therapies will need to be different for AF in T1D and T2D.
Differential Item Functioning for Polytomous Response Items Using Hierarchical Generalized Linear Model

Hierarchical generalized linear model (HGLM) as a differential item functioning (DIF) detection method is a relatively new approach and has several advantages; such as handling extreme response patterns like perfect or all-missed scores and adding covariates and levels to simultaneously identify the sources and consequences of DIF. Several studies examined the performance of using HGLM in DIF assessment for dichotomous items, but only a few exist for polytomous items. This study examined the DIF-free-then-DIF strategy to select DIF-free anchor items and the performance of HGLM in DIF assessment for polytomous items. This study extends the work of Williams and Beretevas (2006) by adopting the constant anchor item method as the model identification method for HGLM, and examining the performance of DIF evaluation with the presence of latent trait differences between the focal and reference group. In addition, the study extends the work of Chen, Chen, and Shih (2014) by exploring the performance of HGLM for polytomous response items with 3 response categories, and comparing the results to logistic regression and Generalized Mantel-Haensel (GMH) procedure. In this study, the accuracy of using iterative HGLM with DIF-free-then-DIF strategy to select DIF-free items as anchor was examined first. Then, HGLM with 1-item anchor and 4-item anchor were fitted to the data, as well as the logistic regression and GMH. The Type I error and power rates were computed for all the 4 methods. The results showed that compared to dichotomous items, the accuracy rate of HGLM methods in selecting DIF-free item was generally lower for polytomous items. The HGLM with 1-item and 4-item anchor methods showed decent control of Type I error rate, while the logistic regression and GMH showed considerably inflated Type I error. In terms of power, HGLM with 4-item anchor method outperformed the 1-item anchor method. The logistic regression behaved similarly to HGLM with 1-item anchor. The GMH was generally more powerful, especially under small sample size conditions. However, this may be a result of its inflated Type I error. Recommendations were made for applied researchers in selecting among HGLM, logistic regression, and GMH for DIF assessment of polytomous items.