Miracle-dz/UniFAR-FTUs huggingface dataset:
Numerical Simulation of Dispersion in Stratified Porous Media

The transport of a solute dissolved in a fluid flowing trough porous media is, next to advection and diffusion, determined by hydrodynamic dispersion. This be- haviour is commonly characterized using the longitudinal and transverse dispersion coefficients. Laboratory and field measurements of these coefficients tend to differ, which might be attributed to heterogeneities found in field porous media. To investigate this, a stratified porous medium consisting of two layers is con- sidered. Each layer has different physical properties, resulting in a different average fluid velocity. As a consequence of the difference in velocity, transport of the solute occurs between the two layers. Under certain circumstances the layers start to be- have as one single layer, with one single effective dispersion coefficient, explaining the discrepancy between field and laboratory measurements. The two-layer stratified porous medium is characterized using a dimensionless number. It is investigated for which values of this number the porous medium acts as one single layer, and for which values the medium behaves as two separate layers. This is done by introducing an index, which effectively measures the behaviour of the medium in terms of these two limit cases. The calculation of the index is done using a numerical simulation of flow and dispersion in the stratified porous medium. It was found that the dimensionless number was in general a good predictor of the behaviour of the stratified porous medium. The system behaved as one single layer if the dimensionless number (after a correction with a certain factor) was much greater than unity. Similarly, the system behaved as two separate layers if the number was much less than unity. However, this number failed if the ratio of the two layer thicknesses was varied. A correction to the dimensionless number was suggested, taking the ratio into account.
Exploring Coping Strategies of Healthcare Providers with Tension Sources in Iran-Iraq War: A Qualitative Study

Background: Evidence shows that people, including healthcare providers, use different coping strategies to cope with life changes and the resulting stress. War causes mortality, loss of health, and long-term physical and psychological complications for military staff, civilians, and healthcare providers. Both pleasant and unpleasant changes in human life require a readjustment. Objectives: The objective of this study was to explain the coping strategies of healthcare providers with tension resources during the Iran-Iraq war. Methods: This was a qualitative content analysis conducted during years 2015 and 2016. The researcher collected, coded, and analyzed the data. In a survey conducted by the researcher, 119 written narratives of 101 healthcare providers during the Iran-Iraq war were collected. To analyze the data, the principles of conventional content analysis were used. Results: The results of the analysis of 952 pages of written narratives in the relevant literature led to the emergence 8 themes. The main themes included acceptance, emotional release, denial and avoidance, shock and disbelieve, self-control, religious strategies, engaging in fun activities, and seeking social support. Conclusions: Transforming the experiences and tacit knowledge of healthcare providers during the war to explicit knowledge could help to identify and analyze problems and provide appropriate solutions in similar scenarios. Also, it would be an effective solution for more effective coping and prevention of mental health problems. Similar studies are recommended to determine the coping strategies of healthcare providers using other methods of data collection including interviews with participants.
Dental Management in a Patient with Congenital Insensitivity to Pain with Anhidrosis : A Case Report

Congenital insensitivity to pain with anhidrosis (CIPA) is a rare, autosomal recessive disorder; affected patients are characterized by inability to feel pain and to sweat over the entire body, as well as by mental retardation. Because, in the oral examination, no specific findings on soft or hard tissue may be found except possible lesions due to selfmutilation, early recognition and diagnosis are essential for these patients. Pediatric dentists must be aware of the clinical manifestations and treatment considerations related to uncontrolled body temperature, tactile hyperesthesia and lack of pain reflex. In this case report, dental management of CIPA was suggested by presenting a 6-year follow-up of young patient.
Comparative evaluation of trabeculectomy with releasable suture versus subconjunctival mitomycin C in post keratoplasty glaucoma

Aim: The aim of the study was to compare the efficacy of trabeculectomy with releasable suture (RS) and trabeculectomy with mitomycin C (MMC) in post keratoplasty glaucoma (PKG). Methods: This observational study was conducted for the patients who developed refractory PKG. Patients who underwent trabeculectomy with RS and with MMC 0.2mg/ml for 2 minutes under the sclera flap were randomly divided into two groups as group I and II respectively. Postoperative follow up of all patients was complete till 6 months for intraocular pressure (IOP) and complications if any. The criteria for surgical success and failure were defined as complete success if final IOP <21 mm Hg achieved without anti-glaucoma medication (AGM), qualified success as achieving the same IOP criteria with AGM and failure as IOP > 21 mm Hg with more than one medications. Results: A total of 52 eyes of 52 patients were included with 26 eyes in each group. Most frequent indication for PK was corneal opacity 25(48.07%). The preoperative mean IOP was 42.11 ± 5.90mmHg and 46.38 ± 8.51mmHg on three AGM in group I and group II respectively. The mean IOP was lowered after both the procedures significantly at all the postoperative follow ups (P=0.000). In group I, the IOP stabilized to 13.12 ± 5.23mmHg by two weeks and remained same till three months with further mild rise in IOP to 17.13 ± 4.28mmHg at six months. In group II, the IOP decreased to 11.27 ± 4.35mmHg on Ist POD and it stabilized at around 22mmHg at two weeks and remained same till six months of follow up. Conclusion: IOP control in trabeculectomy with RS was very good till three months as compared to trabeculectomy augmented by MMC with comparable results at six months of follow up.
Model Predictive Control of an Advanced Multiple Cylinder Engine With Partially Premixed Combustion Concept

Partially premixed combustion (PPC) is an advanced combustion concept and powertrain technology, which has a great potential to improve the fuel economy of vehicles. The process of PPC is driven by both chemical kinetics and mixing process, and is, therefore, sensitive to inlet conditions and injection process. This article presents a control-oriented combustion and air-path model of a PPC multicylinder engine, and also proposes a model predictive control framework for its transient control. The control system was validated in a transient scenario and its capability was demonstrated through a large range of load transient operation.
Tree distribution pattern, growing stock characteristics and biomass carbon density of Mongolian scots pine (Pinus sylvestris var. mongolica) plantation of Horqin sandy land, China

In the recent scenario of global warming, there is a growing concern of planted forest as a potential option for the mitigation of climate change, combating desertification and land degradation. The amount and monitoring of biomass and carbon in planted forests are necessary for policies formulation and mitigation strategies for global climate change. This study estimates tree distribution, growing stock attributes and biomass allocation in different tree components with respect to different diameter classes (4-14, 15-25, 26-36 cm) in planted Mongolian Scots pine (Pinus sylvestris var. mongolica) forests, southern-east China. The study also underlines the carbon density in upper and understory vegetation, soil, litter, deadwood and cone of the planted forest ecosystem. The result showed that stem density, basal area, height, volume and biomass varied between 144 to 25, 1.009 to 1.607 (m ha), 5.56 to 12.06 (m), 2.77 to 7.71 (m ha-1) and 2.74 to 5.17 (Mg ha) in respective diameter classes. The maximum biomass in upper story vegetation was recorded in the stem (62.87 %) followed by branches (17.25 %), roots (17.12 %) and foliage (2.69%). The biomass carbon in upper story vegetation was in the range of 1.37 ± 0.11 to 13.96 ± 0.41 Mg C ha. Soil carbon was found in the range of 25.10±11.67 to 6.07±2.26 at the depth 0-20 and 80-100 cm respectively. Similarly the carbon stock of litters, dead wood, fruits and grasses was 0.138 and 0.050 (Mg C ha) respectively. Altogether, the estimated carbon density of the plantation was 77. 68 (Mg C ha). Out of the total carbon, the soil contributed the highest (75.59%) followed by upper story vegetation biomass carbon (22.17%), litter and dead wood (0.17%) and understory vegetation (0.06%) respectively. The results showed that this forest plantation is an important carbon sink and assisting in mitigating climate change.
Sources and Perceived Effects of Work-Related Stress among Nurses Working in Acute Care Units of University of Nigeria Teaching Hospital, Enugu - Nigeria

Introduction: Nursing is a highly stressful occupation especially for those working in the acute care unit. The aim of this study was to examine the sources and perceived effects of work-related stress among nurses working in acute care units of University of Nigeria Teaching Hospital, Enugu-Nigeria. Methodology: This study utilized a descriptive cross-sectional design. The sample population encompassed 80 nurses working in acute care units (General intensive care unit, newborn intensive care unit, accident and emergency and children emergency room) of the hospital. Researcher constructed questionnaire was used as the research instrument. Results: Result of the study showed that 40% of the respondents identified excessive workload as a source of stress, 35% stated caring with death and dying, 10% identified conflict with physicians while 11% choose inadequate preparation in cases of emergency. The most significant perceived effect of stress on physical health was identified as back pain 68.8%, headache 55%, and fatigue 28.7%. The most significant effect of stress on psychological health was 13.8% and 61.3% perceived physical exhaustion as the effect of stress on work behavior and 13% excessive sleeping. Conclusion: It is widely accepted that nurses working in acute care settings are exposed to various stress sources from physical, psychological and social working environment.
Company Response to Negative Online Reviews: The Effects of Procedural Justice, Interactional Justice, and Social Presence

This research investigates how potential customers evaluate a company response to negative online reviews. Integrating the literature on perceived justice in service recovery, social presence in online communications, and signaling in trust formation process, this research examines the effects of procedural justice, interactional justice, and social presence in the company’s response to negative online reviews on potential customers’ trust and purchase intentions toward a company. A 2 × 2 × 2 between-subject experimental design is utilized, and 410 participants are recruited through a consumer panels firm. Main results include the three-way interaction effect of procedural justice, interactional justice, and social presence on trust and the mediating effect of trust. Social presence exacerbates the negative effects on trust when both interactional justice and procedural justice are low in the company response. However, the social presence effect becomes small in increasing trust when both interactional justice and procedural justice are high in the company response. Trust mediates the relationship between customer perceptions of company response and purchase intentions. This research provides practical implications for hospitality companies on how to effectively respond to negative online reviews.
Trends in Qualification of South African Mathematics Teachers: Findings from TIMSS 2003, 2011, 2015

The chain of progression from teacher education to qualification to classroom instruction and student engagement, and then to learning and achievement, is not as straightforward as often presented. Societal, political and economic pressures create either a positive climate or a stressful one for both teachers and students. Nevertheless it is safe to say that in a subject like mathematics, the importance of subject matter knowledge cannot be underestimated. Research in this area supports the presumption that formal qualifications in the subject, in this case mathematics, are necessary, as this focused engagement with mathematics provides the foundation for mathematics teaching and learning. The allocation of fully qualified teachers to schools has in the past been uneven, with the supposition that students at higher socio-economic levels are being taught by better qualified teachers. In South Africa the improvement of teacher qualifications has been identified as a core area of action with the relevant policy on teacher education renewed in 2007 and again in 2014. The focus of this paper is to understand the change in patterns of teacher qualifications, and the interrelationship with school contextual variables. The analysis is based on the Trends in International Mathematics and Science Study (TIMSS) data from 2003, 2011 and 2015, where teachers from the TIMSS sample provided contextual information. Descriptive statistics were calculated using the IEA IDB Analyzer. The results show that South Africa has made substantial progress in uplifting teachers’ formal qualification levels and in reducing structural inequality within its education system. Out-of-field teaching of mathematics is still shown to be a common phenomenon and is unevenly distributed.
A Review of Quantitative Analysis (QA) in Production Planning Decisions Using the Linear Programming Model

The purpose of this paper was to examine the role of quantitative analysis in production planning decisions. This draws from the observed imperatives of quantitative analysis in business decisions and its capacity for predictability and enhanced decision making given the increasingly complex nature of the business environment. The paper therefore addressed the historical evolution of quantitative technique as an efficient and effective decision-making tool. The content of the paper addressed commonly applied quantitative technique in manufacturing firms today which is, linear programming and its subsequent impact on production planning decisions. The results based on a congruence of views revealed that the “best-fit” application of quantitative analysis models and tools can untangle the complexities of production and planning decision making process in order to achieve the organizational goal. This is, as literature also showed that there is obviously no consensus or integrated model that is capable of solving all managerial problem, different models such as the linear programming model have however been developed to cater for different problems as they arise. The workability or suitability of quantitative analysis is actually premised on its appropriate application. The paper recommends the application of quantitative analysis using linear programming in solving various resource allocation related issues in the primary production planning function of manufacturing firms.
Stem cells: knowledge and attitude among health care providers in Qassim region, KSA

Background: Health care providers as a trusted source of information for most patients should be able to provide counseling services to patients on the new concept of stem cells utilization, benefits and its practice implications. Objective: this study aims to assess the knowledge and attitude of health care providers in Qassim region regarding stem cells. Methods: Self-administered tools were utilized among 250 health care providers were chosen from five major hospitals in Qassim, including doctors, nurses, and other health care providers such as pharmacists, dietaries and administrative staff. Results: The participants were female,<30 years in age, had practiced for <10 years and nurses. About 56% of respondents had a moderate knowledge regarding stem cells, and only 31.2 % had good knowledge. About three quarters 191 (76.4%) of the participants exhibited positive attitude towards stem cells use. A Pearson’s correlation between knowledge and attitude scores was statistically significant. Conclusion : Data from the present study revealed the moderate levels of knowledge and positive attitude toward stem cells and its application among health care providers in Qassim. Therefore, this study suggests that educational programs on stem cells should be implemented to improve stem cells knowledge and encourage a more positive attitude.
Drumming Motor Sequence Training Induces Apparent Myelin Remodelling in Huntington’s Disease: A Longitudinal Diffusion MRI and Quantitative Magnetization Transfer Study

Background Impaired myelination may contribute to Huntington’s disease (HD) pathogenesis. This study assessed differences in white matter (WM) microstructure between HD patients and controls, and tested whether drumming training stimulates WM remodelling in HD. Furthermore, it examined whether training-induced microstructural changes are related to improvements in motor and cognitive function. Methods Participants undertook two months of drumming exercises. Working memory and executive function were assessed before and after training. Changes in WM microstructure were investigated with diffusion tensor magnetic resonance imaging (DT-MRI)-based metrics, the restricted diffusion signal fraction (Fr) from the composite hindered and restricted model of diffusion (CHARMED) and the macromolecular proton fraction (MPF) from quantitative magnetization transfer (qMT) imaging. WM pathways linking the putamen and the supplementary motor area (SMA-Putamen), and three segments of the corpus callosum (CCI, CCII, CCIII) were studied using deterministic tractography. Baseline MPF differences between patients and controls were assessed with tract-based spatial statistics (TBSS). Results MPF was reduced in HD patients compared to controls in the mid-section of the CC in HD subjects at baseline, while a significantly greater change in MPF was detected in HD patients relative to controls in the CCII, CCIII, and the right SMA-putamen post-training. Further, although patients improved their drumming and executive function performance, such improvements did not correlate with microstructural changes. Conclusions Increased MPF suggests training-induced myelin changes in HD. Tailored behavioural stimulation may lead to neural benefits in early HD that could be exploited for delaying disease progression.
Educating citizens in an age of globalization, migration, and transnationalism: A study in four European democracies

ABSTRACT This study explores how globalization, migration, and citizenship education intersect in four northwest European democracies. In this study of secondary schools serving students from immigrant backgrounds in Denmark, Germany, the Netherlands, and the United Kingdom (England and Scotland), I interviewed teachers and students and observed civic-related lessons. Using a socio-cultural, ecological theory of civic education in an era of transnationalism and attending to the historical and socio-cultural contexts in the four countries, I focused on transnational students and the content and teaching methods prevalent in their social studies classes, as well as whole school civic practices. I found transnational student identities were complex, fluid, and situational, and the students frequently communicated across national borders with relatives in their heritage countries and worldwide diasporic communities. Teachers and schools approached civic education in ways that reflected national pedagogical cultures; yet, across countries, teachers identified similar opportunities and challenges in preparing transnational youth for participatory democratic citizenship.
Knowledge, attitude, and practice of blood donation among college students in Puducherry

Kittu, et al. Awareness of blood donation among college students International Journal of Medical Science and Public Health 1232 2017 | Vol 6 | Issue 7 more months earlier. The donar should be healthy not have suffered from malaria, typhoid or other transmissible disease in the recent past. A normal person can donate approximately 350 ml of blood in one donation, and those who weight more than 60 kg can donate 450 ml of blood. [4] “O” group blood is called “universal donar” as it can be given to any blood group person. The people of “AB” group can receive blood from any blood group person. Hence, people with this group blood are called “universal recipients. ”[5] The numbers of potential donors were often reduced due to the strict selection criteria which were imposed to ensure the safety of the blood supplies. [6] The shortage of blood in India is due to an increase in the demand, with fewer voluntary blood donors. One of its strategies is to take the appropriate decision and/or to introduce policy initiatives on the basis of the factual information, the operational research on various aspects such as transfusiontransmissible diseases, the knowledge, attitude, and practice (KAP) among donors, the clinical use of blood, etc.[2] A study on the knowledge, attitude, and the practice of the donors may prove to be useful in the successful implementation of the blood donation program. Our aim was to find the level of the KAP of blood donation among college students in Puducherry. MATERIALS AND METHODS The study was conducted in the Government Polytechnic College situated in the service areas of Indira Gandhi Medical College and Research Institute (IGMC & RI). The Urban Health Center (UHC) of IGMC & RI is the urban field practice area of IGMC & RI, Puducherry. It was decided to conduct the study among final year college students because it was felt that: 1. Students in 1st and 2nd year would not have attained 18 years. 2. Practice of blood donation was one component included in the study which might be applicable for students above 18 years.
Efficacy of tramadol as analgesic and mixed with ketamine, xylazine as anesthetic in rabbits

This study were performed to evaluate the efficacy of Tramadol as analgesic and efficacy of using Tramadol in combination with other drugs like Ketamine and Xylazine in anesthetic protocols in rabbits. 15 adult New Zealand white rabbits divided to 3 equal groups were anesthetized intramuscularly in one syringe, group 1 with Tramadol 15 mg/kg B.W, group 2 with Tramadol 15mg/Kg B.W and Ketamine 30mg/Kg B.W, group 3 with Tramadol 15mg/Kg B.W and Ketamine 30mg/Kg B.W and Xylazine 5mg/Kg B.W, physiologic parameters were evaluated including : body temperature, heart rate, respiratory rate, muscle relaxation, analgesia and stages of anesthesia ( Induction of anesthesia, surgical anesthesia and recovery time). The most significant changes were reported in G3 (T15K30X5) and this combination is useful regimen clinically for anesthetize rabbits due to the fast of induction anesthesia and the long surgical duration of anesthesia.
Family versus Non-Family Firm Franchisors: Behavioral and Performance Differences

Drawing from resource-based theory, we argue that family firm franchisors behave and perform differently compared to non-family firm franchisors. Our theorizing suggests that compared to a non-family firm franchisor, a family firm franchisor cultivates stronger relationships with franchisees and provides them with more training. Yet, we predict that a family firm franchisor achieves lower performance than a non-family firm franchisor. We argue, however, that this performance relationship reverses itself when family firm franchisors are older and larger. We test our hypotheses with a longitudinal dataset including a matched-pair sample of private U.S. family and non-family firm franchisors.