Miracle-dz/UniFAR-FTUs huggingface dataset:
Detection of Mycoplasma Contamination in Adipose Tissue Derived Mesenchymal Stem Cells

Problems: Contamination of cell lines and biological products is one of the major problems of cell culture techniques. Rapid detection of mycoplasma contamination in cell culture is an important part of controlled laboratory. In order to existence of infected cells, leading to unreliable results, the need for a reliable method for laboratories is unavoidable. Polymerase chain reaction (PCR), a technique of rapid, sensitive and specific detection of bacteria is considered as a precise method to detect contamination. The aim of this study was to evaluate the efficacy of PCR in the detection of contaminants in cell cultures and other biological products.
Controller Tuning for Integrator Plus Delay Processes

--------------------------------------------------------ABSTRACT----------------------------------------------------------A design method for PID controllers based on internal model control (IMC) principles, direct synthesis method (DS), stability analysis (SA) method for pure integrating process with time delay is proposed. Analytical expressions for PID controllers are derived for several common types of process models, including first order and second-order plus time delay models and an integrator plus time delay model. Here in this paper, a simple controller design rule and tuning procedure for unstable processes with delay time is discussed. Simulation examples are included to show the effectiveness of the proposed method.
Changing in Costing Models from Traditional to Performance Focused Activity Based Costing (PFABC)

This article is aimed at studying changes in models and discussing and comparing the states of these changes and their advantages. Today, industry and occupation need a costing system to meet their own needs. Costing experts believe that designing a costing system is only possible by fulfilling all its needs. On this basis, they developed different costing models for different industries according to their structures and natures. The most fundamental method used for costing was traditional costing which utilizes only one cost driver for allocating overhead and caused the obtained cost price to have a great difference with the real cost price. The costing system based on Activity Based Costing was designed by Cooper and Kaplan to remove the shortcomings of traditional costing system and to allocate a cost driver suitable to any activity comparing with traditional system and to calculate the cost price according to it. However, Activity Based Costing (ABC) model is problematic to some extent for organizations because of high costs of interviewing people, using subjective and expensive approaches for evaluating time allocations and protection difficulties and updating. Then, Time Driven Activity Based Costing (TDABC) was introduced which calculates the costs based on time driver and is simpler and less expensive than Activity Based Costing model. In addition to solving some of the difficulties of ABC, this model can measure unused capacity and help managers evaluate the function of different departments. However, because of great emphasis that this system puts on "time" and due to some limitations, Namazi introduced Performance Focused Activity Based Costing system (PFABC) which has caused more flexibility in allocating costs to activities by selecting different cost drivers. This model which is an integration of Activity Based Costing and Time Driven Activity Based Costing undertakes costing during 8 stages, but the ambiguity and uncertainty in costing systems create some problems for Performance Focused Activity Based Costing.
Flat $G$-bundles with canonical metrics

On considere la relation entre la theorie invariante des actions de groupes algebriques semi-simples sur des varietes algebriques complexes et le comportement de l'application de moment et des donnees quantiques fournies par une structure symplectique associee. On etudie un exemple de dimension infinie comprenant des fibres plats sur des varietes de Riemann compactes
Improving the nutritional values of plant products through the use of biological agents such as Trichoderma viride in tomato plantations

Department of Microbiology and Biotechnology, Institute of Chemistry, Environmental Protection and Biotechnology, Jan Dlugosz University in Czestochowa, Czestochowa, Poland Corresponding author: Katarzyna Bandurska, Department of Microbiology and Biotechnology, Institute of Chemistry, Environmental Protection and Biotechnology, Jan Dlugosz University in Czestochowa, Armii Krajowej 13/15, 42-200 Czestochowa, Poland E-mail: k.bandurska@ajd.czest. pl; phone: +48343614918
Synchronization phenomena of a mutually pulse-coupled network of integrate-and-fire circuits

We present a pulse-coupled network of integrate-and-fire circuits that have refractoriness. The network can be implemented by a simple electrical circuit, and various periodic synchronization phenomena are observed in the laboratory. The phenomena are characterized by a ratio of phase locking. Using a return map having a trapping window, the ratio can be analyzed in a parameter subspace rigorously. We clarify effects of the refractoriness on pulse coding ability of the network.
DETC 2008-49698 EUCLIDEAN SYMMETRY DETECTION FROM SCANNED MESHES BASED ON A CONBINATION OF ICP AND REGION GROWING ALGORITHMS

Recently, meshes of engineering objects have been easily acquired by 3D laser or high-energy industrial X-ray CT scanning systems and they are widely used in product developments. For the effective use of scanned meshes in inspection, re-design, and simulation of the objects, it is important to reconstruct CAD models from the meshes. Engineering objects often exhibit Euclidean symmetries for their functionalities. Therefore, it is essential to detect such symmetries when reconstructing CAD models with compact data representations which are similar to the ones already defined in CAD systems. However, existing methods for reconstructing CAD models have not focused on detecting such symmetries. In this paper, we propose a new method that detects partial or global Euclidean symmetries, including translation, rotation, and reflection, from scanned meshes of engineering objects based on the combination of the ICP and the region growing algorithms. Our method can robustly and efficiently extract pairs of symmetric regions and their transformations under which the pair can be closely matched to each other. We demonstrate the effectiveness of the proposed method from experiments on various scanned meshes.
Do firms effectively communicate with financial stakeholders? A conceptual model of corporate communication in a capital market context

We identify what constitutes effective communication between firms and their financial stakeholders in a capital market context and establish criteria against which effectiveness can be evaluated. To do this, we introduce the concept of connectivity from the communication studies literature. We conceptualise connectivity as comprising three components: textual connectivity, intertextual connectivity, and relational connectivity. Connectivity refers to the ability to connect different sections of a text (textual connectivity), to connect texts of different time periods or different genres (intertextual connectivity), and to connect firms with their audiences (relational connectivity). We then propose criteria for judging effective corporate communication in a capital market context. Finally, we assess how digital communication and social media provide opportunities for improving connectivity in corporate communication for a broader range of shareholders.
Timothy and red clover as forage for dairy production

The aim of this thesis was to describe and compare timothy (Phleum pratense L.) and red clover (Trifolium pratense L.) as forage for dairy cattle on the basis of the chemical composition and the in vitro degradation characteristics. Initially the degradation characteristics determined with an in vitro gas production technique and an in vitro filter bag technique were compared. Both techniques were found to be interesting tools for providing relevant degradation parameters for feed evaluation models. Thereafter the degradation characteristics and nutritive value of forages of timothy and red clover were described with recordings of in vitro gas production and chemical analysis. Analysis of the herbage of red clover and timothy showed that red clover contained lower concentrations of neutral detergent fibre (NDF) and had lower degradability of neutral detergent fibre (NDFD) on all harvest occasions. Red clover had on average a higher maximal fractional degradation rate (FDRmax) of the whole forage compared to timothy. The FDRmax for the NDF in red clover was not different from that in timothy. In timothy the components soluble in neutral detergent solution had a higher FDRmax compared to those in red clover. Timothy and red clover were conserved as direct cut silages with the addition of conservation additives. It was found that timothy and red clover herbage responded differently to the silage additives. Silages treated with additives had a shorter time until half of the gas was produced, as well as a shorter time until the maximal fractional degradation rate was reached, indicating a faster in vitro degradation compared to that of untreated silages. The use of additives improved the NDFD in silage with red clover but not that in the silage of pure timothy. The relationships between the feed characteristics and the relative silage intake in dairy cows were evaluated. It was found that the preparation technique for silage samples was important and that wet silage samples had a higher gas production and different kinetics compared to dried samples. It was concluded that chemical analysis in combination with the in vitro gas production technique can be a cost-efficient tool for relative prediction of silage intake based on feed characteristics. The predictions can be used to compose feed rations that will optimize silage intake in relation to milk production and to improve conservation management.
Towards non-hexapod mechanisms for high performance parallel machines

The so-called "hexapods" are extremely popular in the research community, but much less successful in practical industrial uses so far. The paper discusses some reasons that could explain this difference. Alternate solutions, based either on simpler mechanisms or on hybrid mechanisms, are described or recalled. An emphasis is made on some new hybrid mechanisms whose important features are motors rigidly fixed on the base and legs with constant length.
A CURVATURE BASED APPROACH TO TORTUOSITY MEASUREMENT OF RETINAL BLOOD VESSELS

Retinopathy of prematurity (ROP) is an eye disease that affects prematurely-born babies. It may even lead to blindness in serious cases. Among others, ROP can be recognized by evaluating the tortuosity of retinal vessels. An automatic detection and evaluation of tortuous vessels can support ophthalmologists when judging retinal images. There already exist various methods for computing vessel tortuosity. However, they do not always cover the medical properties and requirements. Thus, we propose an efficient measure, which is based to the total curvature and the number of curvature sign changes (twists) of the vessel. In order to achieve a stable detection of twists we represent the extracted vessels by curves composed of circular arcs and line segments: The vessels center pixels are approximated by smoothly joined segments of constant curvature. For any maximum tolerance we obtain the minimum number of segments. This way vessels are represented by preferably long curve segments of constant curvature. Together with the proposed measure this representation enables an effective and stable method for evaluating vessel tortuosity. Its performance is examined by means of both synthetic data and vessels of real retinal images.
DEFT'09 : détection de la subjectivité et catégorisation de textes subjectifs par une approche mixte symbolique et statistique

Nous presentons dans cet article le bilan de notre participation a la 5eme edition du DEfi Fouille de Textes(DEFT'09). Nous participons a deux tâches parmi les trois tâches proposees dans le cadre de ce defi. La premiere consiste a categoriser des textes journalistiques en deux classes : subjectif et objectif, et la seconde cherche a delimiter a un niveau de granularite le plus fin possible les passages subjectifs qui apparaissent dans des textes journalistiques et parlementaires. Pour realiser ces tâches sur des textes en francais, nous proposons deux methodes basees sur la detection d'indices de differents niveaux linguistiques par une approche symbolique. Pour la tâche 1, nous utilisons ces indices comme attributs d'un texte dans une methode d'apprentissage et de categorisation automatique standard.
Re-Defining Informal Employment and Measuring its Determinants: Evidence from Russia

Informal activities impact countries' economic development and overall growth. However, studying informal employment is not easy and it is crucial to provide a valid definition of it. This paper contributes to the recent discussion of the measures of informality by taking advantage of a rich dataset on Russia over the period 2003 - 2011, that is before and after the economic downturn, together with a special supplement on informality that allows to construct different measures of informal employment and to analyze its determinants. We demonstrate that the incidence of informal employment varies across the different definitions. However, the determinants of informal employment are roughly stable across the different measures as long as we exclude firm size as a criterion. We also show that risk-averse individuals, as expected, are less likely to select themselves into informal employment.
ANTIBACTERIAL ACTIVITY OF A SECONDARY METABOLITE-PRODUCING CORAL BACTERIUM Pseudoalteromonas SPECIES

A bacterium, collected at the surface of coral Acropora sp. , TAB4.2 was successfully screened for secondary metabolites production based on PCR amplification of the non-ribosomal peptide synthetase gene. It was identified as closely related to Pseudoalteromonas luteoviolacea based on its 16S rDNA. TAB4.2 was found to inhibit the growth of all 5 coral-associated and all 5 pathogenic bacteria tested. To characterize the inhibiting metabolite, a 279 bp long DNA fragment was obtained and the deduced amino acid sequence showed conserved signature regions for peptide synthetases and revealed a high similarity to NosD (40 % identity), a multifunctional peptide synthetase from Nostoc sp. GSV224, and NdaB (44 % identity), a peptide synthetase module of Nodularia spumigena.
Organizational Ambidexterity: Managing Exploitation-Exploration Tensions in Small Firms

The concept of organizational ambidexterity has gained momentum research in business firms. This study aims to explore necessity of ambidexterity. The main objective of this study is to investigate why small firms should be ambidextrous and how they can reach ambidexterity under the pressure of limited resources and competitive forces. Result of the study reveals that small firms are competent of effectively engage both in pursuing exploration and exploitation. The study stresses the importance of finding a balance between these two processes in small firms to reap competitive advantage from the markets which are characterized with hyper competition and dynamism. Theoretical and practical implications are also discussed in this paper.
THE BAL-CHATRI: A TRAP FOR THE BIRDS OF PREY

fledged were produced by four double-brooded females. One double-brooded fe,nale produced at least six fledglings in 1957. 27. The species endures and overcomes high mortality of nests by virtue of its high breeding potential. 28. Adult ,nales sang full songs as late as August 6. Adults did not un,dergo postnuptial molt during nesting. 29. Fledging occurred as late as August 17-18. 30. Adults apparently migrate south fro,n Oklahoma before molting. There are no September or later records of adults for the state. Juveniles have been recorded in September, female-like birds in OctobeT. 31. Differences exist in the breeding behavior of the Indigo and Painted Buntings.
What do we know about R & D spillovers and productivity ? Meta-analysis on heterogeneity and statistical power

Endogenous growth theory and the knowledge capital model predict that research and development (R&D) investment is associated with increasing returns and positive externalities. These insights have informed public support for R&D investment directly and indirectly. We aim to establish where the balance of the evidence lies, the extent to which the evidence has adequate statistical power, and which factors may explain the variation in the empirical findings. Drawing on 983 spillovers and 501 own-R&D effect-size estimates from 60 empirical studies, we find that the average productivity effect of spillovers: (i) is smaller than what is reported in most narrative reviews; (ii) is even smaller when only adequately-powered evidence is considered; (iii) differs by spillover types; and (iv) is not larger than that of own-R&D. We also report that the percentage of adequately-powered evidence is low (30%-55%). We highlight the implications of these findings for future research and public policy design.
New Diagnostic Strategy for Atypical Pituitary Adenomas: Clinical and Histopathological Score

Background: Currently, prognosis remains the major challenge of the adenomatous pituitary pathology. According to the World Health Organization (WHO), pituitary tumors are classified into typical adenoma, atypical adenoma and carcinoma. Given that the prediction of the behavior of these tumors remains a major clinical and anatomo-pathological challenge, we propose a new diagnostic strategy to orient prognosis and therapy of these tumors, based on a multiparameter system, as well as a simple clinico-laboratory and radio-histopathologic diagnostic algorithm. Methods: To validate the method, we have applied it retrospectively to a series of 243 pituitary adenomas (diagnosed according to the 2004 WHO classification on tumors of endocrine organs), operated by transsphenoidal via between 2004 and 2014, at Centro Hospitalar Lisboa Norte , the largest reference center in Portugal. Result: A hundred twenty nine had a follow-up of at least 5 years in order to evaluate recurrences. While 6.2% of typical adenomas recurred, among the atypical the recurrence rate was 68.8%. Conclusion: With this work we intend to provide a more specific differentiating system of possible malignancy, to early identify probable cases of poor evolution, which could be very useful in clinical practice.
Title The effects of foliar pubescence and nutrient enrichment on arthropod communities of Metrosideros polymorpha ( Myrtaceae ) Permalink

1. Nutrient resource availability and host-plant foliar pubescence both influence arthropod food webs, but multifactor studies are needed to understand their interdependence and relative importance. Arthropods were sampled by clipping foliage from Metrosideros polymorpha (Myrtaceae) trees of pubescent, glabrous, and intermediate leaf forms on fertilised and unfertilised plots. 2. Fertilisation decreased leaf mass per area (LMA) but did not change the relative mass of pubescence within leaf morphological classes. 3. Fertilisation increased densities of individuals in four taxonomic orders, densities of individuals and species of all trophic levels, and the biomass of Collembola and Homoptera. Herbivore relative diversity (Shannon H0) also increased with fertilisation, but detritivore diversity declined due to increasing dominance of Salina celebensis (Schaeffer) (Collembola). 4. Detritivore density, driven again by S. celebensis, increased with decreasing leaf pubescence, but Heteroptera and Acari were most abundant on the intermediate pubescence class, and Psocoptera density and biomass increased with increasing pubescence. Trophic-level species density did not change with leaf morphological class, but relative diversity of all arthropods and of detritivores increased with increasing pubescence. 5. Both resource availability and leaf pubescence affected Metrosideros arthropod communities. However, the pervasive positive influence of fertilisation did not translate to compositional shifts, and there were no interactions with leaf morphological class. In contrast, the effects of leaf pubescence on arthropod density, biomass, and diversity were more restricted taxonomically, and nonparametric MANOVA and redundancy analyses demonstrated significant differentiation in community composition on the pubescent morphology.
The Analysis of Finished Rubber Products Industry

IDEFo model is one of the models that can be used to determine the set of processes thouroughly, completely and comprehensevely by providing the information on input, control, output and mechanism (ICOM). The IDEFo model generates models as network diagrams which are useful to guide and to evaluate the process for obtaining a good performance. Industrial processes in the finished rubber product industry obtained from the IDEFo modeling consist of an industrial process besed on solid rubber and latex. Solid rubber-based processes include the preparation of activity materials (natural rubber, synthetic rubber and auxiliary materials), compound manufacture, molding and vulcanization. Latex-based processes include the manufacture of concentrated latex, making dispersion auxiliary materials, the manufacture of latex compound, molding and vulcanization. Keywords: IDEF0, model, process, finished rubber product industry, solid rubber, latex
RF CMOS Power Amplifiers for Mobile Terminals

Recent progress in development of CMOS power amplifiers for mobile terminals is reviewed, focusing first on switching mode power amplifiers, which are used for transmitters with constant envelope modulation and polar transmitters. Then, various transmission line transformers are evaluated. Finally, linear power amplifiers, and linearization techniques, are discussed. Although CMOS devices are less linear than other devices, additional functions can be easily integrated with CMOS power amplifiers in the same IC. Therefore, CMOS power amplifiers are expected to have potential applications after various linearity and efficiency enhancement techniques are used.