Miracle-dz/UniFAR-FTUs huggingface dataset:
Abstraction : on ambiguity and semiosis in abstract painting

Drawing on the fields of philosophy, phenomenology, art history and theory as well as the candidate's own painting practice, this PhD explores the nature of ambiguity and semiosis in contemporary abstract painting. The thesis demonstrates how the aesthetic qualities of pause and rupture, transition and slippage work emergently to break established cliches, habits and intentions in the experiencing of abstract painting and artistic practice.
THE ROLE OF CATIONIC TRYPSINOGEN AND ITS MUTATIONS IN PANCREATITIS

Myofibroblasts play central roles in wound healing, deposition of the extracellular matrix and epithelial function. Their functions depend on migration and proliferation within the subepithelial matrix, which results in accelerated cellular metabolism. Upregulated metabolic pathways generate protons which need to be excreted to maintain intracellular pH (pHi). We isolated human gastric myofibroblasts (HGMs) from surgical specimens of five patients. Then we characterized, for the first time, the expression and functional activities of the Na/H exchanger (NHE) isoforms 1, 2 and 3, and the functional activities of the Na/HCO3 − cotransporter (NBC) and the anion exchanger (AE) in cultured HGMs using microfluorimetry, immunocytochemistry, reverse transcription polymerase chain reaction and immunoblot analysis. We showed that NHE1–3, NBC and AE activities are present in HGMs and that NHE1 is the most active of the NHEs. In scratch wound assays we also demonstrated (using the selective NHE inhibitor HOE-642) that carbachol and insulin like growth factor II (IGF-II) partly stimulate migration of HGMs in a NHE1-dependent manner. EdU incorporation assays revealed that IGF-II induces proliferation of HGMs which is inhibited by HOE-642. The results indicate that NHE1 is necessary for IGF-II-induced proliferation response of HGMs. Overall, we have characterized the pHi regulatory mechanisms of HGMs. In addition, we demonstrated that NHE1 activity contributes to both IGF-IIand carbachol-stimulated migration and that it is obligatory for IGF-II-induced proliferation of HGMs.
Response of shaver brown hens to feeds of different sources in the humid tropical environment

A twelve-week study was conducted to determine the effect of feed type on performance of Shaver brown hens in the humid tropical environment. One hundred and twenty (120) Shaverbrown hens of 28 weeks of age were used for the study.The hens were divided into five groups of 24 hens each and each group was randomly assigned to one of five experimental diets (self-compounded layers’ diet (B), and four commercial layers’ diets-A (reference diet), C, D, and E, respectively). Each diet constituted a treatment and each treatment was replicated thrice with 8 birds per replicate. Each hen in each replicate received about 130g of layers’ mash daily and ad libitum supply of water for twelve weeks. Eggs were collected daily and recorded for each hen. Results show that birds fed diet E had significantly (P 0.05). Birds fed diet B had significantly (P 0.05) and these were higher (P 0.05) affected by dietary treatments. It was concluded that since none of the five diets used in feeding the Shaver brown hens was superior to the other, farmers may therefore use any of them to feed laying birds. Keywords : Feed type, egg production, egg quality, Shaver brown hens, tropical environment
Digestion, growth performance and caecal fermentation in growing rabbits fed diets containing foliage of browse trees

This study aimed to evaluate the effect of feeding dried foliage (leaves and petioles) of Acacia saligna , Leucaena leucocephala or Moringa oleifera on the performance, digestibility, N utilisation, caecal fermentation and microbial profiles in New Zealand White (NZW) rabbits. One hundred weaned male NZW rabbits weighing 819.2±16.6 g and aged 35±1 d were randomly allocated into 4 groups of 25 rabbits each. Rabbits were fed on pelleted diets containing 70% concentrate mixture and 30% Egyptian berseem ( Trifolium alexandrinum ) hay (Control diet) or one of the other 3 experimental diets, where 50% of berseem hay was replaced with A. saligna (AS), L. leucocephala (LL) or M. oleifera (MO). Compared to Control diet, decreases in dry matter (DM; P =0.004), organic matter ( P =0.028), crude protein (CP; P =0.001), neutral detergent fibre ( P =0.033) and acid detergent fibre ( P =0.011) digestibility were observed with the AS diet. However, DM and CP digestibility were increased by 3% with the MO diet, and N utilisation was decreased ( P <0.05) with AS. Rabbits fed AS and LL diets showed decreased ( P =0.001) average daily gain by 39 and 7%, respectively vs. Control. Feed conversion was similar in Control and MO rabbits, whereas rabbits fed AS diet ate up to 45% more feed ( P =0.002) than Control rabbits to gain one kg of body weight. Caecal ammonia-N was increased ( P =0.002) with LL, while acetic acid was decreased ( P =0.001) with AS diet vs. other treatments. Caecal E. coli and Lactobacillus spp. bacteria counts were decreased with MO by about 44 and 51%, respectively, vs. Control. In conclusion, under the study conditions, tree foliage from M. oleifera and L. leucocephala are suitable fibrous ingredients to be included up to 150 g/kg in the diets of growing rabbits, and can safely replace 50% of berseem hay in diets of NZW rabbits without any adverse effect on their growth performance. Foliage from M. oleifera had a better potential as a feed for rabbits than that from L. leucocephala . Although foliage from A. saliga may be also used at 150 g/kg in the diets of growing rabbits, this level of inclusion may result in reduced feed digestibility and growth performance.
How Safe is the Environmental Electromagnetic Radiation

The natural electromagnetic environment originates from the Earth (terrestrial sources) and from space (extraterrestrial sources). Compared with man-made fields, natural fields are extremely small, especially at the radiofrequency band. Electric and magnetic fields exist wherever electricity is generated, transmitted or distributed from power stations or used in electrical appliances. Since the use of electricity is an integral part of modern lifestyle, these fields are ubiquitous in the environment. The situation became ‘heavier’ with the impressive evolution of the mobile phone and telecommunication technology. The incident fields interact or couple with the human body and induce electric and magnetic fields and currents within the body tissues. Oscillating charges may be induced on the surface of the exposed body and these induce currents inside the body. A different interaction mechanism exists for the electric- and magnetic-field components. Dosimetry describes the relationship between the external fields and the induced electric field and current density in the body and the outcome serves as the basis on which authorities recommend limits for human exposure. The locally induced electric field and current density are of particular interest because they relate to the stimulation of excitable tissue such as nerve and muscle. The distribution of induced currents across the various organs and tissues is determined by the conductivity of those tissues. Many mechanisms, mainly when concerning thermal effects, become detectable only at fields above certain strength. Nevertheless, the lack of identified admissible mechanisms does not rule out the possibility of adverse health effects even at very low field levels, provided basic scientific principles are adhered to
Elektive Revaskularisation bei ischämischer Herzinsuffizienz // Elective Revscularization in Patients with Ischemic Heart Failure

Elective Revscularization in Patients with Ischemic Heart Failure. Which patients suffering from ischemic heart failure profit most from revascularization? Several factors need to be considered – patients’ age, left ventricular function and many more. Imaging based ischemia and viability testing are perceived a mainstay of clinical decision making. The evidence supporting it, however, is questionable. The STICH trial failed to identify patients at higher risk based on ischemia testing. Furthermore the assessment of myocardial viability did not identify patients with a greater benefit from revascularization. Revascularization generally improves outcome in patients with ischemic heart failure. The rele vance of viability and ischemia testing is controversially discussed. Guideline-recommended medical therapy remains am important measure. J Kardiol 2018; 25 (3–4): 78–80.
Grazing Evaluation of Annual and Perennial Cool-Season Forage Systems for Stocker Production in the Lower Transition Zone

Cool-season forages provide high-quality forage throughout the cooler months, which can reduce winter feed and hay consumption by extending the grazing season in the Southeast. Limited research has been conducted to simultaneously evaluate common annual and perennial cool-season forage options during this time period. A 2-year grazing trial was conducted to evaluate annual ryegrass (Lolium multiflorum L.), mixtures of cereal rye (Secale cereal L.) and annual ryegrass, and novel endophyte tall fescue [Lolium arundinaceum (Shreb.) Darbysh. ] seeded with annual crimson clover (Trifolium incarnatum L.), perennial white clover (Trifolium repens L.), or treated with spring-applied N fertilizer. Parameters evaluated were timing and length of grazing season, forage nutritive value, forage dry matter (DM) availability, animal performance, and economic returns. Economic analysis evaluated monetary returns per acre. In Year 1 (2013–2014) annual treatments provided 68 days of grazing while perennial treatments provided 75 days. In Year 2 (2014–2015) mixtures of cereal rye and annual ryegrass provided 57 days, while annual ryegrass and novel endophyte tall fescue treatments provided 85 and 84 days, respectively. Animal average daily gain (ADG) and body weight (BW) gain/acre was greatest for ryegrass and tall fescue and least in treatments containing cereal rye. No differences in animal performance were observed between legume and N fertilizer within forage base. Novel endophyte tall fescue treatments had positive returns per acre compared with negative returns for annual treatments. These results indicate that under conditions of similar animal performance and forage production, novel endophyte tall fescue systems may provide a more economical option for producers in the lower transition zone of the Southeast. Cool-Season Forage Systems for Extended Grazing High-quality, cool-season forage systems have forage production characteristics that complement annual production in warm-season grass-based forage systems common to the southeastern stocker industry (Beck et al., 2008; Gunter et al., 2012). In this region, cold weather limits winter forage production, so cattle Published in Crop Forage Turfgrass Manage. Volume 3. doi:10.2134/cftm2016.06. 0048 © 2017 American Society of Agronomy and Crop Science Society of America 5585 Guilford Rd., Madison, WI 53711 This is an open access article distributed under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/ Published online February 13, 2017
A FRAMEWORK FOR THE ASSESSMENT OF TOP-DOWN VS BOTTOM-UP CONTROL OF HETEROTROPHIC NANOFLAGELLATE ABUNDANCE

A model is presented that allows inferences about the main mode of control of planktonic heterotrophic nanoflagellate (HNF) abundance, control by resources or by predation, from the abundances of bacterial and HNF. The model is built upon the observation that field measurements of HNF abundance at most reach concentrations close to those expected for a system in steady-state (with no variation of bacterial abundance). Field and enclosure data from freshwater and marine systems are used to test its utility by regressing D, the distance between the maximal possible concentration of HNF and the actual concentration, to the abundance of micro- or macrozooplankton. It is concluded that the model may help ascertain the impact of microzooplankton on the components of microbial food webs when data on their abundances are not available, and that it can also be used to generate hypotheses on the degree of influence of sources of carbon other than bacteria on flagellates, and the effect of HNF grazing on bacterial specific growth rates.
LESSONS FROM MAHATMA GANDHI FOR TODAY'S SCHOOL PRINCIPALS: AN INSTRUCTIONAL MODEL

This article presents Mahatma Gandhi’s leadership styles, ethical principles, and practices that school principals and those aspiring to become school administrators should learn and apply in their schools. The model intends to reinforce the principals’ understanding the value of applying some of Gandhi’s leadership styles in Kenyan schools. This theoretical research was based on the existing literature on Gandhi’s leadership in India and principals’ leadership including their principles and practices in Kenya. The study found that good leadership in this technologically changing world needs a principal who is innovative, supportive, knowledgeable, people-oriented and skilled in matters related to curriculum implementation. It was further found that good principals initiate, empower, and create good relationships with faculty and other school community members in order to transform their schools.
Near-field focusing of dielectric microspheres: Super-resolution and field-invariant parameter scaling

Optical near-fields of small dielectric particles are of particular importance and interests for nanoscale optical engineering such as field localization, fabrication, characterization, sensing and imaging. This paper represents a systematic investigation on the focusing characteristics (focal length, field enhancement, spot size) for a given refractive-index microsphere (n=1.6) with a varying size parameter across the range of pi<q0<20*pi. Conditions for super-resolution foci were analysised in details. Particularly strong super-resolution foci with spot size falling at least 50% below the diffraction limit were identified and possible new applications were suggested. To understand how the super-resolution conditions could be scaled to other refractive-index particles or background medium, principles of field-invariant parameters scaling (size, wavelength, and refractive index) were revealed and demonstrated with example cases. It offers the new freedom to choose particles and background medium to gain super-resolution at any frequency across the whole electromagnetic spectrum.
Navier-Stokes analysis of airfoils with Gurney flap

Two dimensional steady state Navier-Stokes computations were performed to determine the effect of Gurney flap on NACA 4412 and NACA 0011 airfoils. Gurney flap sizes selected for the study range from 0.5% to 4% of the airfoil chord. A compressible Navier-Stokes solver with Baldwin-Lomax turbulence model, JUMBO2D, is used to predict the flow field around the airfoils. Computed results have been compared with available experimental and computational data. There is good correlation observed between computed and experimental data. Addition of Gurney flap increases the lift coefficient significantly with very little drag penalty if proper Gurney flap height is selected. Nose down pitching moment also increases with Gurney flap height. Flow field structure near the trailing edge shows very good resemblance with Liebeckx2019;s hypothesis that provides the possible explanation for the increased aerodynamic performance
Microbial aggregates within tissues infect a diversity of corals throughout the Indo-Pacific

Coral reefs are highly diverse eco - systems where symbioses play a pivotal role. Corals contain cell-associated microbial aggregates (CAMA), yet little is known about how widespread they are among coral species or the nature of the symbio tic re- lationship. Using histology, we found CAMA within 24 species of corals from 6 genera from Hawaii, American Samoa, Palmyra, Johnston Atoll, Guam, and Australia. Prevalence (%) of infection varied among coral genera: Acropora, Porites, and Pocillo- pora were commonly infected whereas Montipora were not. Acropora from the Western Pacific were significantly more likely to be infected with CAMA than those from the Central Pacific, whereas the re- verse was true for Porites. Compared with apparently healthy colonies, tissues from diseased colonies were significantly more likely to have both surface and basal body walls infected. The close association of CAMA with host cells in numerous species of appar- ently healthy corals and lack of associated cell patho - logy reveals an intimate agenthost association. Fur- thermore, CAMA are Gram negative and in some corals may be related to chla mydia or rickettsia. We propose that CAMA in adult corals are facultative secondary symbionts that could play an important ecological role in some dominant coral genera in the Indo-Pacific. CAMA are important in the life histories of other animals, and more work is needed to under- stand their role in the dis tribution, evolution, physio - logy, and immunology of reef corals.
A VLT/MUSE galaxy survey towards QSO Q1410: looking for a WHIM traced by BLAs in inter-cluster filaments

Cosmological simulations predict that a significant fraction of the low-z baryon budget resides in large-scale filaments in the form of a diffuse plasma at temperatures T ∼ 10^5 – 10^7 K. However, direct observation of this so-called warm-hot intergalactic medium (WHIM) has been elusive. In the Λcold dark matter paradigm, galaxy clusters correspond to the nodes of the cosmic web at the intersection of several large-scale filamentary threads. In previous work, we used HST/COS data to conduct the first survey of broad H I Lyα absorbers (BLAs) potentially produced by WHIM in inter-cluster filaments. We targeted a single QSO, namely Q1410, whose sightline intersects seven independent inter-cluster axes at impact parameters <3 Mpc (comoving), and found a tentative excess of a factor of ∼4 with respect to the field. Here, we further investigate the origin of these BLAs by performing a blind galaxy survey within the Q1410 field using VLT/MUSE. We identified 77 sources and obtained the redshifts for 52 of them. Out of the total sample of seven BLAs in inter-cluster axes, we found three without any galaxy counterpart to stringent luminosity limits (∼4 × 10^8 L⊙∼0.01 L*), providing further evidence that these BLAs may represent genuine WHIM detections. We combined this sample with other suitable BLAs from the literature and inferred the corresponding baryon mean density for these filaments in the range Ω^(fil)_(bar)=0.02−0.04. Our rough estimates are consistent with the predictions from numerical simulations but still subject to large systematic uncertainties, mostly from the adopted geometry, ionization corrections, and density profile.
Pathways--A Case of Large-Scale Implementation of Evidence-Based Practice in Scientific Inquiry-Based Science Education.

The fundamental pioneering ideas about student-centered, inquiry-based learning initiatives are differing in Europe and the US. The latter had initiated various top-down schemes that have led to well-defined standards, while in Europe, with its some 50 independent educational systems, a wide variety of approaches has been evolved. In this present paper, we portray a European bottom-up initiative, “PATHWAY to Inquiry Based Science Education”, to define a basis for learning initiatives and to meet current challenges to access learning, to share knowledge and establish competences in learning communities. Our approach was designed to act as bottom-up catalyst by mobilizing teacher communities to (further) foster inquiry. Of a sample of 10.053 science teachers from 15 European countries (incl. Russia), about 5060 provided empirical support for our teachers’ professional development initiative. The response pattern portrayed teachers’ preferences and pointed to potential needs in professional development (PD) efforts. On average, our sample reported an altogether 11 years’ period of teaching practice in general but just 2-3 years of experience in inquiry-teaching. In the view of that, consequences for professional development (PD) initiatives are discussed.
Flow Simulations with Ultra-Low Reynolds Numbers over Rigid and Flexible Airfoils Subject to Heaving and Flapping Motions

Numerical simulations of flow patterns at ultra-low Reynolds numbers over rigid and flexible airfoils are presented, and the influence of flexibility on main aerodynamic properties are discussed. Typical unsteady flights like heaving and flapping are, in terms of Reynolds and Strouhal numbers, reduced frequencies and FSI (Fluid Structure Interaction) factor, are valuated. It has been found that for some flexibility levels, the aerodynamic forces and propulsive efficiency are enhanced if compared with a rigid airfoil. The mathematical technical approach used to solve the laminar-incompressible flow equations coupled with structural algorithms, is described.
PERMANENT ATTACHMENT OF MYXOBACTERIA

The permanent attachment of Myxococcus xanthus V-25 and M. xanthus 422 to the hydrophobic and hydrophilic surface was studied. The strains attached mostly to the hydrophobic surface. Protease and chloramphenicol did not promote the cells to detach from both surfaces, but sodium periodate did. This suggests that exopolysaccharide may play a role in their permanent attachment. The presence of Zn, Pb, Cd and Cr induced the changes in the permanent attachment of the strains to both types of the surfaces. It appeared to be reflected in the changes to the charge and hydrophobic characteristics of the cell surfaces measured by hydrophobic and electrostatic interaction chromatography. There was a decline in attachment for death phase cells compared exponential and stationary phase cells but there were no major changes in the cell surface characteristics with growth phase. This suggests that cell physiological activity may contribute to irreversible adhesion for myxobacteria, however, ClCCP, a metabolic inhibitor, did not affect the permanent attachment of the cells. The attachment of both strains declined with increasing pH. Possible mechanisms for the permanent attachment are discussed in the light of these results.
From No Pay to Low Pay and Back Again? A Multi-State Model of Low Pay Dynamics

This study analyzes the mobility between three labor market states: working in low paid jobs, working in higher paid jobs and not working. Using German panel data I estimate dynamic multinomial logit panel data models with random effects taking the initial conditions problem and potential endogeneity of panel attrition into account. In line with results from other countries, this first study on Germany finds true state dependence in low pay jobs and confirms previous results of state dependence in non-employment. Moreover, I find evidence for a "low pay no pay cycle", i.e. being low paid or not employed itself increases the probability of being in one of these states in the next year. However, compared to non working, being low paid does not have adverse effects on future employment prospects: the employment probability increases with low pay employment and the probability of being high paid seems to be higher for previously low paid workers. I find no evidence for endogenous panel attrition.