Miracle-dz/UniFAR-FTUs huggingface dataset:
Anatomical studies of stems, roots and leaves of selected citrus rootstock varieties in relation to their vigour

The present studies were carried out to consolidate information on anatomical features of stem, root and leaves from different vigour groups of citrus rootstock varieties. Troyer citrange (Citrus sinensis × Poncirus trifoliata), rough lemon (Citrus jambhiri), swingle citrumelo (Citrus paradisi × P. trifoliata), sweet lime (Citrus limettioides), carrizo citrange (C. sinensis × Poncirus trifoliata), sour orange (Citrus aurantium) and flying dragon (P. trifoliata) were examined to investigate relationships between their internal structure and vigour. It was found that vigorous rootstock, rough lemon (C. jambhiri) possessed lower proportions of bark (phloem) in the stems and roots as well as larger vessel elements in the xylem, when compared with least vigorous rootstocks, flying dragon (P. trifoliata). Smaller but more vessel elements were found in stem cross-sections than root cross-sections of three month’s old rootstock seedlings. The possible mechanism of vascular differentiation induced by young leaf primordia, following the original polarity and developing toward the roots is discussed. Key words: Citrus rootstock, anatomical features, stem, root, leaves.
The role of vegetation cover and diet in explaining long-term changes in the breeding population of little terns (Sternula albifrons) in Ria Formosa, Algarve

6 Resumo 8 List of tables 10 List of figures 11 Chapter 1 Introduction 13 1.1Regulation of seabird population numbers 14 1.2Breeding habitat characteristics of Little Terns 17 1.3Foraging habitats and food resources for Little Terns 19 1.4Objectives 21 Chapter 2 Methods 23 2.1Study area 24 2.2Study species 26 2.3Census data 29 2.4Measure of vegetation cover in 2013 29 2.5Measuring vegetation cover in aerial pictures 30 2.6Habitat management in Santa Luzia 31 2.7Little Tern reproductive parameters 32 2.8Environmental variables 33 2.9Diet analysis 34 2.10Data analysis 35 Chapter 3 – Results 38 3.1Vegetation cover and number of breeding pairs 39 3.2Resources availability, breeding parameters and number of breeding pairs . 44 3.2. 1Reproductive parameters of Little Terns nesting in salinas 44 3.2. 2Diet of Little Terns nesting in salinas 45 3.2.3Census data, environmental variables, breeding parameters and diet . 48
Influence of fructose and glucose occurring on fruit surface on the growth of fungi that cause sooty blotch of apple

The fungi that cause sooty blotch grow only on the apple skin, so they use appropriate nutrients which are present on the fruit surface. It has been shown that when the first symptoms of sooty blotch occur a noticeable increase of glucose and fructose content both on the apple skin and in juice is observed. Such increase occurs at pH 4.4. An effect of surface glucose and fructose on the growth of pathogens responsible for the disease was also confirmed by evaluating the germination of conidia of Phialophora sessilis de Hoog and Peltaster fructicola Jonhson in solution of above mentioned sugars, distilled water and standard d-glucose solutions.
Peer Evaluation of Video Lab Reports in a Blended Introductory Physics Course

The Georgia Tech blended introductory calculus-based mechanics course emphasizes scientific communication as one of its learning goals, and to that end, we gave our students a series of four peer-evaluation assignments intended to develop their abilities to present and evaluate scientific arguments. Within these assignments, we also assessed students' evaluation abilities by comparing their evaluations to a set of expert evaluations. We summarize our development efforts and describe the changes we observed in student evaluation behavior.
New records of Burgess Shale-type taxa from the middle Cambrian of Utah

Abstract. Cambrian strata of the Laurentian craton contain numerous examples of Burgess Shale—type faunas. Although displaying a more or less concentric distribution around the cratonal margin, most faunal occurrences are in present-day western North America, extending from the Northwest Territories to California. Nevertheless, the soft-bodied and lightly skeletalized fossils in most of these Lagerstätten are highly sporadic. Here, we extend knowledge of such Middle Cambrian occurrences in Utah with reports of four taxa. An arthropod from the Marjum Formation, Dytikosicula desmatae gen. et sp. nov., is a putative megacheiran. It is most similar to Dicranocaris guntherorum, best known from the younger Wheeler Formation, but differs primarily in the arrangement of pleurae and overall size. Along with a specimen of ? Yohoia sp, a new species of Yohoia, Y. utahana sp. nov., is described. It differs from the type and only known species, Y. tenuis, principally in its larger size and shorter exopods; it is the first description of this genus from outside the Burgess Shale. A new species of a stem-group lophotrochozoan from the Spence Shale, Wiwaxia herka sp. nov., possesses a palisade of dorso-lateral spines that are more robust and numerous than the type species of Wiwaxia, W. corrugata. Another notable taxon is Eldonia ludwigi from the Marjum Formation, which is interpreted as a primitive ambulacrarian (assigned to the cambroernids) and a new specimen of the ? cnidarian Cambrorhytium from the Wheeler Shale is illustrated.
THE ROLE OF QUALITY ADOPTNION IN GROWTH AND MANAGEMENT OF SMALL & MEDIUM ENTERPRISES IN KENYA

In today’s business environment, small and medium enterprises (SMEs) cannot afford to ignore the strategic implications of quality for its competitive position. Research shows that most SMEs lose between 5%-15% of sales revenue as a result of the lack of attention to quality. Of the limited research available, it appears that SMEs has been very slow to implement formal quality models, and where they have, the outcomes are inconclusive. The purpose of this study was to investigate the role of quality in growth of SMEs in Kenya. The study focused on manufacturing SMEs that are based in Nairobi and its environs. The study adopted an exploratory approach using a descriptive survey. Stratified random sampling was used and each stratum represented a sub-sector. The data collection instruments were issued to all the 123 firms identified. The response rate was 100%. Statistical analyses were conducted using statistical package for social scientists (SPSS) to calculate descriptive statistics, reliability analysis, factor analysis, t-test, F-test and regression. Results showed that; majority (72%) of the manufacturing SMEs had adopted quality or are implementing quality initiatives; forty five (45%) percent of the SMEs adopting quality are in the agrobased sub sector. Overall, the SMEs level of quality initiative's implementation is below average (mean = 3.49). The results are indicative of the reluctance of SMEs to adopt quality initiatives. The overall results indicated that entrepreneurial management (EM), marketing orientation (MO) and capacity enhancement of employees had a significant linear European Scientific Journal March 2013 edition vol.9, No.7 ISSN: 1857 – 7881 (Print) e ISSN 18577431 313 relationship with quality. The results support the notion that SMEs committed to the adoption of quality do obtain results. The study recommends that SMEs must know what quality management is and what comprises quality management if they are to implement them in their firms.
Crime , Grime , Fear , and Decline : A Longitudinal Look

In the late 1970s, researchers and policy analysts began connecting disorderly social and physical conditions with reactions to crime such as fear. Over the past 20 years, they have further expanded this thesis and developed new outcomes. Initially, researchers theorized that incivilities influenced residents’ reactions to crime. Over the years, researchers have expanded their field of focus from individual residents to entire neighborhoods and added changing crime and neighborhood decline to the outcomes of interest (see Evolution of the Incivilities Thesis).
IRSL Signals from Maar Lake Sediments Stimulated at Various Temperatures

Optisch stimulierte Lumineszenz (OSL) und infrarot stimulierte Lumineszenz (IRSL) wurden an sieben Feinkorn Proben von Kern JW3 aus dem Trockenmaar Jungfernweiher gemessen. Zwei verschiedene post-IR IRSL Messprotokolle (blaue Detektion) wurden an den polymineralischen Feinkornern (4–11 μm) angewandt. Diese Protokolle beinhalten eine Stimulation mit IR bei 50°C fur bis zu 200 s vor einer weiteren IR Stimulation bei erhohten Temperaturen bei 225°C fur 100 s oder 290°C fur 200 s. Die OSL von Quarz sattigt bei Dosen von 260–300 Gy und die De-Werte, die mit IRSL bei 50°C (IR50) erhalten werden, nehmen mit der Tiefe nicht zu. Dies weist darauf hin, dass auch dieses Signal bei ~500 Gy in Sattigung geht. De-Werte des post-IR IRSL Signals bei 225°C (pIRIR225) und 290°C (pIRIR290) nehmen jedoch mit der Tiefe von ~800 Gy bis ~1400 Gy zu, und zeigen ein korrigiertes Minimalalter von ~200 ka fur die jungsten Sedimente an. Die durchschnittlichen im Labor gemessene Fadingraten liegen fur IR50 bei 4.09 ± 0.02%/decade und fur pIRIR225 bei 2.55 ± 0.14%/decade. Fur Probe JWS1 wurde fur pIRIR290 ein g-value von 0.52 ± 1.12%/decade gemessen. Sowohl fading korrigierte pIRIR225 als auch unkorrigierte pIRIR290 De-Werte der jungsten Probe (~16 m unterhalb der heutigen Erdoberflache) weisen auf ein Alter von ~250 ka fur die oberste Probe hin. Fur die altesten Proben, die in ~94 m unterhalb der heutigen Erdoberflache genommen wurden, wurden Alter von bis zu ~400 ka gemessen.
Breeding of minor fodder crops for sustainable agriculture.

There is a lack of knowledge on the diversity and geographical distribution of less utilized species in agriculture. Breeding programmes of minor crops are very important for increasing the diversity in agriculture and for sustainable agriculture. Input materials in most cases are crop wild relatives of main cultivated forage species like alfalfa, red clover, white clover, etc. Gathering, growing and breeding of crop wild relatives has a long tradition in the Czech Republic. In the workplace in Troubsko it has been done for 60 years. The result of this activity is 21 registered varieties of different minor crops (Trifolium pannonicum, Lablab purpureus, Lathyrus sativus, Trigonella foenum-graecum etc.) and many breeding lines included in the state registration trials (Astragalus cicer, Trifolium alpestre, Galega orientalis etc.). One of the results of breeding programme is a unique variety Trifolium pratense x Trifolium medium (Trifolium x permixtum) - PRAMEDI. The variety was bred as interspecific hybridisation of the red clover (Trifolium pratense L.) cv. Tatra (2n = 4x = 28) and zigzag clover (T. medium L.) (2n = 8x = 64). It is perennial legume species, which is suitable as substitution of the red clover, especially in dry and warm regions. The height, flowering time and quality are comparable to standard tetraploid red clover varieties. By the plants short underground rhizomes are frequent and the plants have better persistence.
STEREOLOGY, AN UNBIASED METHODOLOGICAL APPROACH TO STUDY PLANT ANATOMY AND CYTOLOGY: PAST, PRESENT AND FUTURE

This review presents an historical overview of stereological methods used for the quantitative evaluation of plant anatomical and cytological structures. It includes the origins of these methods up to the most recent developments such as the application of stereology based on 3D images. We focus especially on leaf, as the vast majority of studies of plant microscopic structure examine this organ. An overview of plant cell ultrastructure measurements as well as plant anatomical characteristics (e.g. plant tissue volume density, internal leaf surface area, number and mean size of mesophyll cells and chloroplast number), which were estimated by stereological methods most frequently, is presented. We emphasize the importance of proper sampling needed for unbiased measurements. Furthermore, we mention other methods used for plant morphometric studies and briefly discuss their relevance, precision, unbiasedness and efficiency in comparison with unbiased stereology. Finally, we discuss reasons for the sparse use of stereology in plant anatomy and consider the future of stereology in plant research.
Modeling of mode control and noise in self-pulsating PhaseCOMB lasers

Self-pulsations (SPs) in phase-controlled mode beating lasers (PhaseCOMB) are very attractive for all-optical clock recovery at ultra-high bit rates. In this paper, we apply the comprehensive simulation tool Longitudinal Dynamics in Semiconductor Lasers, developed by us, for studying the SP features of PhaseCOMB lasers, considering the effects of spontaneous emission noise, longitudinal spatial hole burning, and gain dispersion. In particular, the importance of mode control for adjusting the PhaseCOMB operating conditions is pointed out. The simulation results are confirmed by measurements on fabricated devices.
Paramagnetic Ions Affect Relaxation Rate Dispersion of Blood: Implications for Magnetic Resonance Relaxation Dispersion Imaging

The proton relaxation rate dispersion of paramagnetic ions in blood samples was studied in the frequency interval from 10 kHz to 10 MHz. With the Field cycling method we applied, the samples were first magnetized by a relatively high magnetic field (0.5 T). By electronic means this field was rapidly (1 ms) reduced to a lower value in the interval 0.1 mT - 0.5 T, where the excited proton spin may relax during a time interval of about 3·T1max. Then the magnetic field is again quickly raised up to the higher level for the detection of the NMR-signal. The relaxation characteristics were analyzed by applying a model with three compartments of water proton-spin exchange. For each compartment we estimated a correlation frequency by fitting the dispersion curves to a sum of Lorentz distributions. We found that low concentrations of paramagnetic ions have a large influence on the relaxation rate dispersion in the low frequency region 100 mT) and low (<10 mT) relaxation fields. Such sequences of images could be used to study the oxygen status and metabolism of the brain as well as the generation and distribution of reactive oxygen species (ROS). This technique called “Magnetic resonance Relaxation Dispersion Imaging” (MARDI) would be particularly suitable to analyze various neurological diseases such as stroke, MS, Alzheimer´s disease as well as brain tumor progression. It might also be suitable for imaging of tumour oxygenation and in vivo ROS distributions in radiation therapy, which could be used in dose planning and for analyzing and optimizing the effect of various radiation therapy regimes.
A CALL FOR FDM DESIGN RULES TO INCLUDE ROAD DEPOSITION

The deposition paths, or roads, used to create FDM parts area a critical factor in determining part performance. In some cases, such as the FDM machines discussed in this work, there are no designer options to control road patterning, making it a hidden constraint in the design process. Even if the option is given, the designer must be aware that it is a variable. In either case, deposition road patterning is not something that can be taken for granted when designing parts. A new level of DfFDM guideline development must be implemented if AM is to reach the level of universality as other traditional machining methods.
The Growth and Decline of Small firms In Developing Countries

Empirical work on micro and small firms has focused on developed countries. The little work that exists on developing countries is all too often based on small samples taken from ad hoc questionnaires. The census data we analyze are fairly representative of the structure of small business in India. Consistent with prior research on developed countries, size and age have a negative impact on firm growth in the majority of specifications. The decision to export is a double-edged sword – if successful it can accelerate the growth of successful firms, but it can also increase the probability of decline. While proprietary ownership results in faster growth, enterprises managed by women are less likely to grow and more likely to decline. Although many small firms are able to convert knowhow into commercial success, we find that many others do not have any technical knowledge and some are unable to use it to their benefit.
Acculturation and Perceived Social Distance among Arabs and Saudi Arabians in an ESL Situation

The main purpose of this study was to explore the perceived social distance among a small Arab community residing in a college town in the Midwest of the USA. The study examines its possible impact on the process of learning/acquiring English as a second language (ESL). It draws on the findings and contentions of the acculturation model as outlined by Schumann (1978). Three data collection procedures were employed: personal interviews, field observations, and a questionnaire. Five members of the aforementioned community were interviewed: three Saudi Arabians, and two other Arabs. The interviews were mapped against the social factors of the model as summarized by Brown (2000). Then a sum of 17 Saudi Arabian informants (graduate students) responded to a questionnaire. The findings suggest that different Arabs acculturate differently in accordance to their future plans. The persons who intend to reside in the target language (TL) culture acculturate (perceive smaller distance from the TL group) much more than those transient residents who intend to live there for a specific purpose and leave after finishing their business. The permanent residents' self-perception of their English proficiency is higher than the temporary ones.
Sph numerical approach in modelling 2d muddy debris flow

D muddy debris flow has been simulated accord - ing to a dam break like problem along a slope. The two sets of equations related to the fluid and solid phases, as considered by the debris flow mixture theory, have been simplified in only one set of equations, consider - ing just one equivalent material. Then the Herschel- Bulkley fluid constitutive equations have been select - ed. The correct parameters of the HeRsCHel-bulkley model have been chosen in order to correctly simulate the behaviour of mudflows. The final mathematical model, has been solved numerically with the smoothed particle hydrodynamics (SPH) method. SPH is a par- ticle mesh-free Lagrangian method, well suitable for computing highly transitory free surface flows of com - plex fluids in complex geometries. Finally a laboratory experimental test has been selected for comparison. Satisfactory results have been achieved. Nevertheless, further parametric analyses will be carried out and fur- ther considerations about both constitutive equations and numerical improvements will be employed and discussed in future papers.
Uncoupling of bacterial production and flagellate grazing in aquatic sediments: a case study from an intertidal flat

In contrast to planktonic ecosystems, the fate of bacterial production in aquatic sedi- ments is still largely unclear. In this study, we identified the factors regulating the impact of flagellate grazing on benthic bacterial production for a sandy and a silty intertidal sediment. Flagellate grazing rates were estimated using fluorescently labelled sediment to prevent disturbance of in situ bacterial density and community composition and to account for grazing on attached bacteria. Since flagellate cell size was quite diverse, the grazing rates were determined for 4 size classes. Bacterial production was measured simultaneously with grazing estimates. Bacterial density and production increased with decreasing median grain size of the sediment. Bacterial production was strongly related to the chlorophyll a content of the sediment, indicating resource control of bacterial production. In contrast to bacteria, flagellate biomass decreased with decreasing median grain size of the sediment. Pairwise comparison of grazing rates between the 2 sites showed that grazing rates were significantly higher at the sandy site. This suggests that the effect of sediment composition on flagellate biomass may be mediated by an influence of sediment characteristics on flagellate ingestion rates. The negative rela- tion of bacterial production and the positive relation of flagellate biomass and grazing rates with median grain size resulted in a significant positive relation between the impact of flagellate grazing on bacterial production and the median grain size of the sediment. These results amount to an uncou- pling of flagellate grazing and bacterial production in fine sediments. Our results as well as results from previous studies suggest that grazing by flagellates is not an important fate of bacterial produc- tion in aquatic sediments, except for sandy sediments during periods of low bacterial production.
Studies of plasma and craters produced by the interaction of high-energy sub-nanosecond laser with silver target

The results of measurements of microablation from a silver target irradiated by the high-power PALS laser system in Prague are presented. In this experiment the laser beam of energy of about 110 J in a 400 ps pulse was focused perpendicularly to the massive silver target. The target surface position was changed with respect to the focal spot of the laser beam in the range from -2.5 to 2.5 mm. A set of four ion collectors was used for plasma ion emission measurements. The effect of the laser pulse interaction with the target, i.e. craters and damages formed in the vicinity of the craters, were investigated with the use of scanning electron microscopy (SEM) and optical microscopy methods. The characteristics of the crater were compared with the essential parameters of ion streams emitted from the plasma produced in the same laser shot.
HOW EXTERNAL CORPORATE GOVERNANCE AFFECTS SEOS PERFORMANCE: MEDIATING EFFECT OF AGENCY COSTS

In an analysis of moment structure (AMOS) setting, this study investigates the effectiveness of external corporate governance in mitigating agency costs and enhancing long-term operating performance for seasoned equity offerings (SEOs). Additionally, this study hypothesizes the crucial and mediating role of agency costs in the relationship between governance structure and post-SEO operating performance. The results reveal that the mediating role of reducing agency costs is crucial to the causal relationship between external corporate governance and post-SEO performance, indicating external corporate governance can enhance performance through direct positive influence on firm performance and, more importantly, through indirect negative influence to decrease agency costs.