bluuebunny/crossref_metadata_2025 huggingface dataset:
Use of Case Study Method in Primary School: A Teacher Training Process
Authors: ÜTKÜR Nur
Published: June 2019

This
study aims to determine how the case study method is used in primary school
Life Sciences courses in the classroom setting and the change occurred in the
quality of in-class use of this method following the case study-based
training provided for teachers. This is a qualitative study using the action
research design. The study group was composed of 7 second- and third-grade
classroom teachers selected from private and state schools under the body of
Turkey Ministry of National Education and their 21 students (opinions of 3
students each selected from 7 classes). The data collection instruments used
in the study are the observation form and the semi-structured interviews
performed with the students. The data obtained were analyzed with the content
analysis technique. The necessary steps were followed to achieve validity and
reliability of the data analysis with the data collection instruments. In
accordance with the findings achieved, it was seen that there was a positive
change in the quality of how the teachers used the case study method in Life
Sciences courses after the case study-based training. It was also concluded
that the students liked the courses instructed after the training and thought
that they became more active.
Early Childhood Teachers’ Views About the Use of Questions in Early Childhood Education Program Assessment
Authors: TURUPCU DOĞAN Aysun , ÖMEROĞLU Esra
Published: June 2019

The aim of this study is to determine the
opinions of the pre-school teachers about the frequency of use of evaluation
questions in their education programs (descriptive, affective, questions on
objectives and questions association with social life). The sample was 323 preschool teachers. Data gathered through screening
model and Chi-Square Test χ2 were used for data analysis. It was
determined that teachers prefer ‘descriptive questions’ and ‘questions on
objectives’ more than ‘affective questions’ and ‘questions association with
social life’. Additionally, there was not a significant difference between the
frequency of teachers’ use of questions association with social life and having
training/seminars on evaluation of young children.
Body Satisfaction and Well-Being Status as Predictors of Conscious Awareness
Authors: Mert Abdullah , Kahraman Meliha
Published: June 2019

The aim of this study is to
investigate the relationship between conscious awareness and well-being and
body satisfaction levels of university students. The data of the study were
collected from 369 (N = 220 female, N = 149 male) students who studied at
various departments of Uşak University in 2017-2018 academic year. The research
was conducted in accordance with the relational screening model. The “Well-
Being Scale" was used to determine well-being state of the students, the
"Body satisfaction Scale" was used to determine their body
satisfaction state, and the "Conscious Awareness Scale" was used to
determine their level of Conscious awareness . Data were tested at .05 and .01
significance level. Data were analyzed by using t-test, correlation and
multiple regression method by using SPSS 20.0 program. The results of the study
showed that body satisfaction did not differ according to gender and the
well-being was higher in female students, whereas the conscious awareness was
higher in male students. In addition, there was a weak positive relationship
between the Conscious awareness and the well-being and body satisfaction.
Findings revealed that body satisfaction and well-being predict the conscious
awareness at statistically significant level. The findings of the present study
were discussed in the light of the literature and some suggestions were made.
Karakteristik dan Preferensi Pengguna Dalam Pemilihan Lokasi Parkir di Koridor Jalan Pemuda, Klaten
Authors: Kusuma Marcellus Lendra , Suwandono Djoko
Published: June 2019

Pemuda road corridor is the main corridor in Klaten Regency which has function as Central Business District (CBD). The growth of an area led to the need for parking space also increased. The problem is that many parked carelessly vehicles that cause roadblocks and reduce the aesthetics of the city. Needs a parking area planning in accordance with the characteristics of the people there. The purpose of this study is to understand the characteristic and preferences of users in choosing of parking location on Pemuda road corridor Klaten Regency. Data collection in this study used primary data obtained from the questionnaire. The respondent's target in this research is all the people who park their vehicles in Pemuda road corridor, which is divided into four zones of location and three time zones; morning, noon and afternoon. The result is characteristics of the user in the morning is dominated by the purpose of visit is to work with a long time parking duration (> 4 hours), then in the noon is dominated by the purpose of visit is shopping with medium parking duration (1-2 hours), and shopping and recreation purposes with medium duration parking (1-2 hours) in the afternoon. Meanwhile the preference analysis puts the security variable to be the most important in choosing of parking location.
Rumusan Kebijakan Penataan Reklame di Kota Semarang
Authors: Kurniati Rina , Nugraha Muhammad Fajri
Published: June 2019

The rapid growth of billboards that are used as a medium of communication and marketing of products and services, one of which is caused by increasing community needs and development of technology & information. The rapid growth must be responded to well by the Semarang City Government so that strategic points for regional income can be maximized while maximizing spatial planning efforts in Semarang City. Based on this, the research itself aims to formulate a billboard structuring policy in the city of Semarang by using a qualitative descriptive method. The formulation efforts were carried out through several analysis points which resulted in each building function and land use affecting the provisions relating to billboards and the development of advertisement plots on private land to be controlled because they were related to environmental aesthetics, road benefits and road space could also be used for advertising and information media provided that they get permission from the road organizer according to their authority.
Ferramenta computacional gráfico-iterativa de dimensionamento e detalhamento de vigas protendidas
Authors: Moura Márcio Wrague , Da Silva Pacheco Ana Carolina , Lopes Weslley Camargo
Published: June 2019

O presente trabalho traz um estudo que busca facilitar a solução de problemas de engenharia estrutural, com enfoque em vigas isostáticas de concreto protendido. Para tanto, foi desenvolvida uma ferramenta computacional em linguagem Visual Basic, ambiente de desenvolvimento de programas da Microsoft, que segue as disposições da NBR 6118 – Projeto de estruturas de concreto – procedimento. As rotinas do programa têm como foco realizar os cálculos envolvidos no dimensionamento e detalhamento de vigas protendidas. Em se tratando dos objetivos específicos, pode-se citar: cálculo das propriedades geométricas da seção transversal da viga; cálculo da força de protensão; dimensionamento da armadura de protensão; definição e traçado dos cabos de protensão, com exposição visual do desenho do cabo; cálculo das perdas de protensão; verificação das tensões em estado limite de serviço; verificação do estado limite último; verificação da flecha e; dimensionamento da armadura passiva. Os resultados são apresentados com a execução da ferramenta computacional, exposta aqui por figuras. A partir disso, concluiu-se que o dimensionamento de vigas protendidas pelo programa se mostra rápido e prático para solução de problemas, o que o faz útil para o trabalho na área de concreto protendido. A utilização das metodologias prescritas pelas normas vigentes permitiu análises detalhadas do comportamento em serviço das vigas.
Numerical Modeling of Water Flow in Expansive Soils with Simplified Description of Soil Deformation
Authors: Michalski Sławomir , Szymkiewicz Adam
Published: June 2019

In this paper we describe a numerical model of transient water flow in unsaturated expansive soils and the resulting soil volume change. The unsaturated flow equation is solved in a 2D domain using a finite-volume method and an explicit time discretization scheme. Strains in the soil mass are calculated by two simplified approaches, assuming that the strain state is either 1D (in the vertical direction only) or 2D with equal strains in horizontal and vertical directions. The model is applied to two cases described in the literature, in which the strains were computed from the solution of the stress equilibrium equation. It is shown that the simplified methods give results which are reasonably close to the more complex approach based on the equilibrium equations. The proposed model can be used to predict time-varying soil shrinkage and swelling caused by natural and anthropogenic factors.
Effect of Arc Power on the Wear and High-temperature Oxidation Resistances of Plasma-Sprayed Fe-based Amorphous Coatings
Authors: Luo Jinheng , Shi Na , Xing Ya-Zhe , Jiang Chaoping , Chen Yongnan
Published: June 2019

Atmospheric plasma spraying (APS) technique is employed to prepare Fe-based amorphous coatings on T91 steel substrate under various arc powers of 30 kW, 35 kW and 40kW. The morphology and microstructure of both Fe-based powders and amorphous coatings are characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). In addition, the wear resistance and high-temperature oxidation resistance of the plasma-sprayed coatings at various arc powers are studied. It is found that with increasing the arc power, the content of the porosity and the amorphous phase in the coatings declines. Specifically, under 30 kW, 35 kW and 40 kW arc power, the porosity of the coatings is 7.96%, 6.13% and 5.75%. Correspondingly, the relative content of amorphous phase from the coatings is measured to be 96.07% (mass fraction), 73.89% and 65.54%. Moreover, under 40 kW arc power, it gives the coating the highest micro-hardness having more compact microstructure and more dispersive α-Fe grains. Besides, the coatings fabricated at high arc power exhibit less wear induced weight loss and less weight gain from high-temperature oxidation comparing with those fabricated at lower arc power.
The Impact of the German Minimum Wage on Individual Wages and Monthly Earnings
Authors: Burauel Patrick , Caliendo Marco , Grabka Markus M. , Obst Cosima , Preuss Malte , Schröder Carsten , Shupe Cortnie
Published: June 2019

This paper evaluates the short-run impact of the introduction of a statutory minimum wage in Germany on the hourly wages and monthly earnings of workers targeted by the reform. We first provide detailed descriptive evidence of changes to the wage structure in particular at the bottom of the distribution and distinguish between trends for regularly employed and marginally employed workers. In the causal analysis, we then employ a differential trend adjusted difference-in-differences (DTADD) strategy to identify the extent to which these changes in wages and earnings can be attributed to the minimum wage introduction. We find that the minimum wage introduction can account for hourly wage growth in the order of roughly 6.5 % or€\euro0.45/hour and an increase in monthly earnings of 6.6 % or€\euro53/month. Despite finding wage growth at the bottom of the distribution, the paper documents widespread non-compliance with the mandated wage floor of€\euro8.50/hour.
Halogen bonds in the crystal structure of 4,3:5,4-terpyridine – 1,4-diiodotetrafluorobenzene (1/1), C21H11F4I2N3
Authors: Wang Weizhou
Published: June 2019

C21H11F4I2N3, monoclinic, C2/c (no. 15), a = 17.9705(8) Å, b = 6.5423(3) Å, c = 17.8916(8) Å, β = 98.634(4)°, Z = 4, V = 2079.65(16) Å3, R
gt(F) = 0.0313, wR
ref(F
2) = 0.0784, T = 290 K.
Synthesis and crystal structure of poly[(μ2-nitrato-κ4
O,O′:O′,O′′)-nitrato-κO-(μ2-1,4-bis((1H-imidazol-1-yl)methyl)benzene-κ2
N:N′)cadmium(II)], C14H14N6O6Cd
Authors: Xu Bin , Yang Qing-Lin , Yun Meng , Zhang Xiao-Yu , Wu Yan-Fang , Dong Xiu-Yan
Published: June 2019

C14H14CdN6O6, monoclinic, P21/c (no. 14), a = 11.2983(5) Å, b = 9.2539(4) Å, c = 17.0604(7) Å, β = 105.398(1)°, Z = 4, V = 1719.69(13) Å3, R
gt(F) = 0.0321, wR
ref(F
2) = 0.1060, T = 193(2) K.
Developing ultrasonic soft sensors to measure rheological properties of non-Newtonian drilling fluids
Authors: Jondahl Morten Hansen , Viumdal Håkon
Published: June 2019

Surveillance of the rheological properties of drilling fluids is crucial when drilling oil wells. The prevailing standard is lab analysis. The need for automated real-time measurements is, however, clear.

Ultrasonic measurements in non-Newtonian fluids have been shown to exhibit a non-linear relationship between the acoustic attenuation and rheological properties of the fluids. In this paper, three different fluid systems are examined. They are diluted to give a total of 33 fluid sets and their ultrasonic and rheological properties are measured. Machine learning models are applied to develop soft sensors that are capable of estimating the rheological properties based on the ultrasonic measurements. This study explores three different machine learning model types and, extensive training and tuning of the models is carried out. The best model types that show good results and the potential to develop a real-time sensor system suitable for use in oil & gas drilling process automation are selected.
Semidesnudo, género y otros factores en publicidad televisiva. Un acercamiento desde la neurociencia
Authors: Tapia Frade Alejandro , Del Toro-Acosta Andrés
Published: June 2019

Este trabajo muestra los resultados de un experimento de neurociencia realizado sobre un grupo de 20 personas de ambos sexos, a las que se midió su actividad electrodérmica de forma simultánea mientras visionaban spots de televisión. Se prestó especial atención al análisis de diferencias de género y sus patrones de activación atencional y emocional. Los resultados ponen de manifiesto que los spots que mostraban modelos semidesnudos o en ropa interior resultan significativamente superiores en atención en ambos sexos respecto de los que no presentan esta característica. También se pudieron concluir diferencias significativas en relación a la familiaridad de los espectadores con la marca en ambos sexos (las marcas conocidas son atendidas en mayor medida). Finalmente, pudo también destacarse que la activación atencional se produce en mayor medida al inicio y finalización del spot, aunque se aprecia más claramente en el caso de las mujeres. De igual modo, se puede sugerir un patrón común de activación atencional cuando se produce una ruptura relevante de registro sonoro.
Preguntar para escribir. Análisis crítico de las entrevistas-perfil de Antonio López Hidalgo en el diario Córdoba (2007-2015)
Authors: Peralta García Lidia
Published: June 2019

Reseña de:

Preguntar para escribir. Análisis crítico de las entrevistas-perfil de Antonio López Hidalgo en el diario Córdoba (2007-2015).María José Ufarte. Diputación de Córdoba: Córdoba, 2016.
A New Metric to Diagnose Precipitation Distribution in Transitioning Tropical Cyclones
Authors: Raghavendra Ajay , Milrad Shawn M.
Published: June 2019

A new coupled dynamic and thermodynamic metric is developed based on the Eady Moist Baroclinic Growth Rate (EMBGR), to discriminate between left-of-track (LOT) and right-of-track (ROT) precipitation distributions in transitioning tropical cyclones (TCs). LOT events pose a major flood risk even when a TC tracks along a coastline or just offshore, as flash flooding can occur hundreds of kilometers inland from the cyclone center. The EMBGR can improve human-produced quantitative precipitation forecasts (QPF) because it is dependent on relatively well-forecast large-scale mass fields. The ability of the EMBGR to identify precipitation distribution is first explored in a case study of TC Matthew (2016), using reanalysis and numerical model forecasts. Subsequently, a composite analysis of 36 years (1979–2014) of United States landfalling TCs using reanalysis data shows that the EMBGR is an effective discriminator between LOT and ROT distributions. The utility of the EMBGR is quantified using a pattern correlation analysis for both TC Matthew and the composites. Finally, a conceptual schematic is developed for LOT cases so that forecasters can most effectively utilize the EMBGR to improve human QPF skill during transitioning TCs.
„den fliegenden maͤren zeglauben kein ursach sîe“ – Das Mandat Maximilians I. vom 22. April 1499 in seiner propagandistischen Dimension
Authors: Riedmann Tobias
Published: June 2019

This paper deals with the propaganda used by Emperor Maximilian I during the Swiss/Swabian War of 1499, and in particular the mandate of April 22nd. In accordance with the genuine communication situation of the Early Modern period, it was necessary to adapt the respective framework conditions to the corresponding time segment through a theoretical determination of the communication situation. Based on these theoretical premises, this study analyses original sources according to their propagandistic dimensions and investigates the context, the addressed audience and the declared purpose correspondingly.
African Rice Cultivation. Wissens- und Technologietransfer von westafrikanischem Reisanbau nach South Carolina
Authors: Joppich Jasmin
Published: June 2019

The following paper is about the knowledge and technologies of rice cultivation that enslaved Africans brought from West Africa to colonial South Carolina. The paper examines why and in what ways West African technologies of rice cultivation were used and adapted in South Carolina to maximise production and profits, how rice production evolved after the Civil War in 1865, and whether there were any further developments in US rice cultivation.
Unterdrückung–Diskriminierung–Verfolgung. Das Schicksal der Geschwister Olga Quandest und Karl Loewit
Authors: Pölzl Konrad
Published: June 2019

The following paper aims to reconstruct the life of the siblings Olga Quandest and Karl Loewit, who lived in the city of Innsbruck during the time of National Socialism. Even though they followed the Roman Catholic faith, both of them were categorized as „Jews“ or „Mischlinge“ and therefore had to suffer from oppression, discrimination and persecution. In this paper, these individual biographies have been contextualised with macrohistorical developments and outline the conditions for Jewish spouses in so-called „Mischehen“ in the Gau Tirol-Vorarlberg between 1939 and 1945.
Der Bauernkrieg. Ein Systemkonflikt an der Wende vom Mittelalter zur Neuzeit
Authors: Ambach Florian
Published: June 2019

The following paper aims to examine if and how the Peasants’ War was connected with the Protestant Reformation. In order to answer this question, various models of society developed by the peasants will be analysed. The specific characteristics of the different, loosely connected rebellions, which were summarised and idealised to a united movement, the so-called Peasants’ War, by later historiography, will be pointed out through the example of four different rebellious areas.
Migration, Integration und Isolation. Zielgruppenspezifische Fallanalyse der Lebensbereiche Familie, Bildung und Beruf weiblicher Migrantinnen in Tirol
Authors: Volgger Laura
Published: June 2019

The connection between migration, integration and isolation is currently being discussed in political, psychological and social sciences as well as the area of healthcare. The purpose of this paper is to analyse the social group of female migrants with small children within the categories family, education and labour market integration. It shows the importance of an intensified integration of this specific group that is highly affected by social isolation through lack of educational and labour market integration. Whereas the first part outlines important theories of integration and assimilation, the empirical part allows a more individual consideration of female migrants and may direct future research on the connection of family, education and labour market integration and their impact on other social minority groups.
Sie sammeln und sie tauschen. Schloss Ambras als Knotenpunkt eines europäischen Netzwerks kunstaffiner Fürstenhöfe der Spätrenaissance
Authors: Hofer Ricarda
Published: June 2019

This paper explores dimensions of cultural exchange, a research area that traces mutual exchange activities of various kinds in material culture, including portraits and statues, but also tools of everyday life. At the heart of this study is Castle Ambras, a centre of regional cultural exchange activities in Renaissance Tyrol. Since the days of Archduke Ferdinand II of Tyrol, its proprietors cultivated relationships with other European princes interested in the arts. As will be shown in this paper, various objects found their way to Tyrol as part of this cultural exchange – and can still be found in the halls of Ambras’ present-day museum.
Die Heiligtümer der Nation. Abraham Lincoln, Erinnerungskultur und die „nationale Einheit“ der USA
Authors: Kapferer Benedikt
Published: June 2019

In US-American nation building, Abraham Lincoln played such a vital role that he became a major focal point in US politics, society and culture. His significance even reached dimensions of religious worship, which represents a key characteristic of US culture of remembrance. Especially in modern, pluralistic democracies, such an intertwining of nationhood and religion may cause societal tensions. This paper deals with Lincoln’s efforts to create a religion of the nation, establishing a hegemonic culture of remembrance. Based on the concept of „civil religion“, it investigates the meaning and implication of religious elements, particularly the „Pledge of Allegiance“, and the role of history in the contemporary USA.
In-VivoQuantitative Image Analysis of Age-Related Morphological Changes ofC. elegansNeurons Reveals a Correlation between Neurite Bending and Novel Neurite Outgrowths
Authors: Hess Max , Gomariz Alvaro , Goksel Orcun , Ewald Collin Y.
Published: June 2019

The aging of the human brain in the absence of diseases is accompanied by subtle changes of neuronal morphology, such as dendrite restructuring, neuronal sprouting, and synaptic deteriorations, rather than neurodegeneration or gross deterioration. Similarly, the nervous system ofCaenorhabditis elegansdoes not show neurodegeneration or gross deterioration during normal aging, but displays subtle alterations in neuronal morphology. The occurrence of these age-dependent abnormalities is stochastic and dynamic, which poses a major challenge to fully capture them for quantitative comparison. Here, we developed a semi-automated pipeline for quantitative image analysis of these features during aging. We employed and evaluated this pipeline herein to reproduce findings from previous studies using visual inspection of neuronal morphology. Importantly, our approach can also quantify additional features, such as soma volume, the length of neurite outgrowths, and their location along the aged neuron. We found that, during aging, the soma of neurons decreases in volume, whereas the number and length of neurite outgrowths from the soma both increase. Long-lived animals showed less decrease in soma volume, fewer and shorter neurite outgrowths, and protection against abnormal sharp bends preferentially localized at the distal part of the dendrites during aging. We found a correlation of sharp bends with neurite outgrowth, suggesting the hypothesis that sharp bends might proceed neurite outgrowths. Thus, our semi-automated pipeline can help researchers to obtain and analyze quantitative datasets of this stochastic process for comparison across genotypes and to identify correlations to facilitate the generation of novel hypothesis.
How “Facts” Shaped Modern Disciplines
Authors: Hagen Sjang L. Ten
Published: June 2019

This history of the concept of fact reveals that the fact-oriented practices of German physicists and historians derived from common origins. The concept of fact became part of the German language remarkably late. It gained momentum only toward the end of the eighteenth century. I show that the concept of fact emerged as part of a historical knowledge tradition, which comprised both human and natural empirical study. Around 1800, parts of this tradition, including the concept of fact, were integrated into the epistemological basis of several emerging disciplines, including physics and historiography. During this process of discipline formation, the concept of fact remained fluid. I reveal this fluidity by unearthing different interpretations and roles of facts in different German contexts around 1800. I demonstrate how a fact-based epistemology emerged at the University of Göttingen in the late eighteenth century, by focusing on universal historian August Ludwig Schlözer and the experimentalist Georg Christoph Lichtenberg. In a time of scientific and political revolutions, they regarded facts as eternal knowledge, contrasting them with short-lived theories and speculations. Remarkably, Schlözer and Lichtenberg construed facts as the basis of Wissenschaft, but not as Wissenschaft itself. Only after 1800, empirically minded German physicists and historians granted facts self-contained value. As physics and historiography became institutionalized at German universities, the concept of fact acquired different interpretations in different disciplinary settings. These related to fact-oriented research practices, such as precision measurement in physics and source criticism in historiography.
Forward Genetic Screen for Caenorhabditis elegans Mutants with a Shortened Locomotor Healthspan
Authors: Kawamura Kazuto , Maruyama Ichiro N
Published: June 2019

Two people with the same lifespan do not necessarily have the same healthspan. One person may retain locomotor and cognitive abilities until the end of life, while another person may lose them during adulthood. Unbiased searches for genes that are required to maintain locomotor ability during adulthood may uncover key regulators of locomotor healthspan. Here, we take advantage of the relatively short lifespan of the nematode Caenorhabditis elegans and develop a novel screening procedure to collect mutants with locomotor deficits that become apparent in adulthood. After ethyl methanesulfonate mutagenesis, we isolated five C. elegans mutant strains that progressively lose adult locomotor ability. In one of the mutant strains, a nonsense mutation in elpc-2, which encodes Elongator Complex Protein Component 2, causes a progressive decline in locomotor ability during adulthood. Mutants and mutations identified in the present screen may provide insights into mechanisms of age-related locomotor impairment and the maintenance of locomotor healthspan.
Selection, Linkage, and Population Structure Interact To Shape Genetic Variation Among Threespine Stickleback Genomes
Authors: Nelson Thomas C , Crandall Johnathan G , Ituarte Catherine M , Catchen Julian M , Cresko William A
Published: June 2019

Genome-wide patterns of heterogeneous genetic diversity are now well documented across organisms. How these patterns arise is, however, still not clear. Nelson et al. combine population genomics and genetic mapping of threespine...

The outcome of selection on genetic variation depends on the geographic organization of individuals and populations as well as the organization of loci within the genome. Spatially variable selection between marine and freshwater habitats has had a significant and heterogeneous impact on patterns of genetic variation across the genome of threespine stickleback fish. When marine stickleback invade freshwater habitats, more than a quarter of the genome can respond to divergent selection, even in as little as 50 years. This process largely uses standing genetic variation that can be found ubiquitously at low frequency in marine populations, can be millions of years old, and is likely maintained by significant bidirectional gene flow. Here, we combine population genomic data of marine and freshwater stickleback from Cook Inlet, Alaska, with genetic maps of stickleback fish derived from those same populations to examine how linkage to loci under selection affects genetic variation across the stickleback genome. Divergent selection has had opposing effects on linked genetic variation on chromosomes from marine and freshwater stickleback populations: near loci under selection, marine chromosomes are depauperate of variation, while these same regions among freshwater genomes are the most genetically diverse. Forward genetic simulations recapitulate this pattern when different selective environments also differ in population structure. Lastly, dense genetic maps demonstrate that the interaction between selection and population structure may impact large stretches of the stickleback genome. These findings advance our understanding of how the structuring of populations across geography influences the outcomes of selection, and how the recombination landscape broadens the genomic reach of selection.
Sit4 and PP2A Dephosphorylate Nitrogen Catabolite Repression-Sensitive Gln3 When TorC1 Is Up- as Well as Downregulated
Authors: Tate Jennifer J , Tolley Elizabeth A , Cooper Terrance G
Published: June 2019

Saccharomyces cerevisiae lives in boom and bust nutritional environments. Sophisticated regulatory systems have evolved to rapidly cope with these changes while preserving intracellular homeostasis. Target of Rapamycin Complex 1 (TorC1), is a serine/threonine kinase complex and a principle nitrogen-responsive regulator. TorC1 is activated by excess nitrogen and downregulated by limiting nitrogen. Two of TorC1’s many downstream targets are Gln3 and Gat1—GATA-family transcription activators—whose localization and function are Nitrogen Catabolite Repression- (NCR-) sensitive. In nitrogen replete environments, TorC1 is activated, thereby inhibiting the PTap42-Sit4 and PTap42-PP2A (Pph21/Pph22-Tpd3, Pph21,22-Rts1/Cdc55) phosphatase complexes. Gln3 is phosphorylated, sequestered in the cytoplasm and NCR-sensitive transcription repressed. In nitrogen-limiting conditions, TorC1 is downregulated and PTap42-Sit4 and PTap42-PP2A are active. They dephosphorylate Gln3, which dissociates from Ure2, relocates to the nucleus, and activates transcription. A paradoxical observation, however, led us to suspect that Gln3 control was more complex than appreciated, i.e., Sit4 dephosphorylates Gln3 more in excess than in limiting nitrogen conditions. This paradox motivated us to reinvestigate the roles of these phosphatases in Gln3 regulation. We discovered that: (i) Sit4 and PP2A actively function both in conditions where TorC1 is activated as well as down-regulated; (ii) nuclear Gln3 is more highly phosphorylated than when it is sequestered in the cytoplasm; (iii) in nitrogen-replete conditions, Gln3 relocates from the nucleus to the cytoplasm, where it is dephosphorylated by Sit4 and PP2A; and (iv) in nitrogen excess and limiting conditions, Sit4, PP2A, and Ure2 are all required to maintain cytoplasmic Gln3 in its dephosphorylated form.
Die MiFID II-Regulierung von Datenbereitstellungsdiensten in Deutschland
Authors: Sajnovits Alexander
Published: June 2019

Die Finanzkrise hat nach Überzeugung des Europäischen Gesetzgebers erhebliche Transparenzdefizite der Finanzmärkte zutage treten lassen. Die Steigerung der Transparenz auf den Finanzmärkten ist daher eines der tragenden Prinzipien bei der Stärkung des Finanzsystems durch das MiFID II/MiFIR-Regulierungspaket. Im Fokus der Transparenzstärkung stehen dabei nicht nur sog. dark trades, die nicht in die Vorhandelstransparenz des MIFID I-Regimes einbezogen waren. Defizite wurden vielmehr auch bei der Datenqualität und der Art und Weise der Zugänglichmachung von Daten identifiziert. Mit den Datenbereitstellungsdiensten tritt ein neuer regulierter Marktteilnehmer neben Marktbetreiber und Wertpapierfirmen, der wesentlich dabei helfen soll, Transparenzdefizite künftig einzudämmen und damit eine effizientere Preisbildung zu befördern.
Zur Schätzung von Betafaktoren bei dünnem Aktienhandel
Authors: Knoll Leonhard , Kruschwitz Lutz , Lorenz Daniela
Published: June 2019

Werden börsennotierte Unternehmen auf der Basis des CAPM bewertet, ist der Betafaktor ein wesentlicher Parameter des Diskontierungszinses. Bei Nebenwerten wird dabei die Verwendung des eigenen Betas oft mit dem Verweis auf eine zu geringe Liquidität der Aktien abgelehnt. Der Beitrag untersucht, inwieweit dies aus theoretischer und ökonometrischer Sicht begründet ist, und kommt zu dem Ergebnis, dass ein Verwerfen des eigenen Betas regelmäßig nicht zu rechtfertigen ist.
Cabeça a prêmio: tráfico, elite, Estado e violência no Brasil contemporâneo
Authors: Lesquives Juliana Oliveira
Published: June 2019

O objetivo deste trabalho é analisar de que modo se configura a representação da violência no romance Cabeça a prêmio (2003), escrito por Marçal Aquino, atentando para as escolhas feitas pelo autor, ao investir na construção de uma narrativa literária sobre o tráfico de drogas, e as implicações dessa escolha para o fazer literário contemporâneo, levando em conta as reversões propostas pela narrativa no que se refere ao tratamento dado ao tema da violência.  *** Cabeça a prêmio: trafficking, elite, State and violence in contemporary Brazil ***The objective of this work is to analyze how the representation of violence is configured in the novel Cabeça a prêmio (2003), written by Marçal Aquino, paying attention to the choices made by the author when investing in the construction of a literary narrative about the traffic of drugs and the implications of this choice for the contemporary literature, taking into account the reversals proposed by the narrative regarding the treatment given to the theme of violence.Keywords: Contemporary Brazilian literature; Drug trafficking; Violence.
Limpkin, Aramus guarauna (L., 1766) (Gruiformes, Aramidae), extralimital breeding in Louisiana is associated with availability of the invasive Giant Apple Snail, Pomacea maculata Perry, 1810 (Caenogastropoda, Ampullariidae)
Authors: Dobbs Robert C. , Carter Jacoby , Schulz Jessica L.
Published: June 2019

We document the first breeding record of Limpkin, Aramus guarauna (Linnaeus, 1766) (Gruiformes, Aramidae), for Louisiana, describe an additional unpublished breeding record from Georgia, as well as a possible record from Alabama, and associate these patterns with the concurrent establishment of the invasive Giant Apple Snail, Pomacea maculata Perry, 1810 (Caenogastropoda, Ampullariidae). We predict that an invasive prey species may facilitate range expansion by native predator species, which has ramifications for conservation and management.
Popular Song Afterlives
Authors: Horlor Samuel
Published: June 2019

Amateur live performances on the city streets of Wuhan give afterlives to songs in the Chinese pop canon; they are sites for this repertory to be adapted and assimilated into musical worlds beyond those of the artists and industries responsible for its original production and dissemination. Singers here learn the songs by following commercial recordings, a process related to oral transmission as it enables and constrains creativity in ways that are reflective of the social and technological circumstances of performers' lives. Recordings feed into the spread of change among Wuhan's amateur singers, with certain limitations and new possibilities also resulting from the technologies and skills available on the streets. Examining popular song afterlives exposes mundane layers of creativity, and comments more broadly on prosaic drivers of new meaning in current popular music practices.
Rehearsing the 'Éthnik-Jazz Aesthetic'
Authors: Tsioulakis Ioannis
Published: June 2019

Academic analyses of music aesthetics often privilege the intellectual process of creating symbolic connections over the practical negotiation between performing musicians in a rehearsal setting. In contrast, this article examines the way in which aesthetic elements (styles of improvisation, instrumental riffs, basslines, rhythm grooves, and so on) emerge as a result of power struggles, personal rivalries, and competing stylistic sensibilities. Drawing on my research among ethnic-jazz music groups in Athens, who experimented with cross-overs between funk rhythms, Eastern Mediterranean modal melodies, and jazz harmonization, this article will reveal how musical hybridity can become a contested terrain during rehearsals, creating social dramas of different magnitudes. The first part of the article examines ethnographic vignettes from rehearsals with Athenian musicians, while the second part analyses written testimonies from musicians on their perception of rehearsals and their role in collective music-making.
Editors’ Introduction
Authors: Krüger Bridge Simone , Tochka Nicholas , Dunnett Abi
Published: June 2019

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Los contenidos deportivos en la programación televisiva española (1993-2010): un análisis desde la perspectiva de los índices de audiencia
Authors: Bonaut Joseba Universidad San Jorge , Vicent Mireya Universidad Complutense de Madrid
Published: June 2019

The importance of televised sports content in Spain, chiefly football, has led to a growth in research in recent last years. Many studies have addressed this phenomenon from a variety of perspectives, including television-programming strategy, the business management relationship between television and sports, the battle for broadcasting rights or the elaboration of a television message through different broadcasting techniques. This paper seeks to add to the debate on this topic through a detailed analysis of the audience ratings of sports content aired on Spanish television channels with a nationwide coverage. To this end, we analyse the complete audience measurement data from the first period of private commercial television in Spain (1993-2010) in order to determine the most important characteristics of sports content and their true impact on audience ratings. To achieve this aim, we analysed 4,000 statistical entries from Sofres/Kantar Media’s “Anuario de audiencias de television” [Audience Yearbook] and cross referenced and studied information from more than 2,300 sport broadcasts. The results of this research underpin the role of live football broadcasts, which accounted for more than 50% of the most successful television content during that period
Developing and Implementing a Systems-Based Residents as Teachers Initiative
Authors: Amari Erica , Choi Elaine , Clark Jenn , Sadownik Leslie , Broekhuyse Henry , Wong Roger , Jarvis-Selinger Sandra
Published: June 2019

This article was migrated. The article was not marked as recommended. PurposeUsing a systems-based approach for developing and implementing a residents as teachers (RaT) initiative follows the trend of systems thinking in health care and medical education, and assures positive outcomes and sustainability. This paper outlines the steps for a systematic, program-wide RaT initiative, using the University of British Columbia (UBC) as a case example. Project period was 2013-2015.Study DesignThe initiative team surveyed 65 of UBC's then 72 residency programs on their level of involvement and comprehensiveness in teaching residents to teach, which they used to create a 0-4 classification system. A six-topic RaT core curriculum was developed and train-the-trainer sessions were offered to build capacity within programs to customize and deliver the topics. An online scheduling system was used to schedule RaT sessions, track resident attendance, and disseminate evaluation surveys.ResultsA portion of the programs (n=21, 34%) were classified at Level 0, indicating few to no teaching competencies were taught. After the implementation of RaT in four programs, the majority of residents (n=61, 88%) indicated the overall quality of the educational experience was good or excellent. Most responses (n=2-93, 89-100%) agreed or strongly agreed that learning objectives were met for each RaT topic. ConclusionsImplementing a systems-based approach for RaT allows for centralized curriculum, administration, and evaluation, but also allows individual programs to have ownership and responsibility over curriculum adaptation, delivery methods, and faculty and resident engagement. Furthermore, the classification system provides a way to identify program needs and track improvements across all postgraduate residency training.
Scalable Use of Big Data Analytics in Small Group Learning
Authors: Topps David , Cullen Michelle
Published: June 2019

This article was migrated. The article was not marked as recommended. The principles of big data analytics consist of more than Volume. Based on our approaches to the use of hybrid natural language processing and the underlying learning analytics afforded by the these techniques, we examine how big data analytic approaches can be applied to small groups of learners. We describe a number of techniques, including the use of Sentiment Analysis and how this can be used to more richly inform the learning cycle.
Advances in fruit crop propagation in Brazil and worldwide-apple trees
Authors: Petri José Luiz , Hawerroth Fernando José , Fazio Gennaro , Francescatto Poliana , Leite Gabriel Berenhauser
Published: June 2019

Abstract Apple production has been an important economic activity worldwide. The wide dissemination and cultivation of apple trees in several regions of the world is due to the development of propagation techniques from its domestication to the present time. Apple trees can be propagated by seeds, restricted to the use in breeding programs, and multiplied by several methods of vegetative propagation, both for rootstocks and apple scion cultivars. Considering the high technological level currently used in apple crop management, plant propagation plays a very important role in order to enable seedling production with high morphological quality and free of diseases, requiring new advances and propagation improvements in new releases of rootstocks and apple scions.
Seed priming improves the germination and growth rate of melon seedlings under saline stress
Authors: Oliveira Carlos Eduardo da Silva , Steiner Fábio , Zuffo Alan Mario , Zoz Tiago , Alves Charline Zaratin , Aguiar Viviane Cabrera Baptista de
Published: June 2019

ABSTRACT: The germination and growth of melon (Cucumis melo L.) plants can be severely affected by excess salts in the soil or irrigation water; however, negative effects of salt stress can be attenuated using appropriate methods of seed priming. Thus, effects of osmopriming as inducer of salt stress tolerance in melon seeds exposed to salinity levels were investigated in this study. Seeds were soaked for 22 h at 25 °C in the dark in distilled water (hydropriming) or 0.5% KNO3 solution (osmopriming), and after drying, were distributed in plastic boxes with blotter paper containing different NaCl solutions prepared with osmotic pressure of 0.0 MPa (control), -0.3 MPa (mild stress), and -0.6 MPa (severe stress). Unprimed dry seeds were taken as control. The plastic boxes were kept into a seed germinator, at 25 °C for 14 days. A completely randomized design in a 3 × 3 factorial schemes with four replicates of 25 seeds was used. Results showed that the seed priming with water and KNO3 may be successfully applied on melon seeds to alleviate the adverse effects of saline stress in initial stages of plant growth. However, under severe salt stress conditions, hydropriming should be used because it results in higher germination and initial growth rate of the seedlings when compared to the osmopriming. Use of unprimed seeds should not be adopted in cultivation areas affected by salinity because they result in low germination rate and reduced initial plant growth.
Combined index of genomic prediction methods applied to productivity
Authors: Suela Matheus Massariol , Lima Leísa Pires , Azevedo Camila Ferreira , Resende Marcos Deon Vilela de , Nascimento Moysés , Silva Fabyano Fonseca e
Published: June 2019

ABSTRACT: Rice cultivation has great national and global importance, being one of the most produced and consumed cereals in the world and the primary food for more than half of the world’s population. Because of its importance as food, developing efficient methods to select and predict genetically superior individuals in reference to plant traits is of extreme importance for breeding programs. The objective of this research was to evaluate and compare the efficiency of the Delta-p, G-BLUP (Genomic Best Linear Unbiased Predictor), BayesCpi, BLASSO (Bayesian Least Absolute Shrinkage and Selection Operator), Delta-p/G-BLUP index, Delta-p/BayesCpi index, and Delta-p/BLASSO index in the estimation of genomic values and the effects of single nucleotide polymorphisms on phenotypic data associated with rice traits. Use of molecular markers allowed high selective efficiency and increased genetic gain per unit time. The Delta-p method uses the concept of change in allelic frequency caused by selection and the theoretical concept of genetic gain. The Index is based on the principle of combined selection, using the information regarding the additive genomic values predicted via G-BLUP, BayesCpi, BLASSO, or Delta-p. These methods were applied and compared for genomic prediction using nine rice traits: flag leaf length, flag leaf width, panicles number per plant, primary panicle branch number, seed length, seed width, amylose content, protein content, and blast resistance. Delta-p/G-BLUP index had higher predictive abilities for the traits studied, except for amylose content trait in which the method with the highest predictive ability was BayesCpi, being approximately 3% greater than that of the Delta-p/G-BLUP index.
Quality and antioxidant potential of ‘BRS Magna’ grapes harvested in the first half of the year under different training systems and rootstocks in a tropical region
Authors: Ferreira Talita de Oliveira , Costa Rayssa Ribeiro da , Félix Débora Tamara , Andrade Neto Eugenio Ribeiro de , Cruz Maísa de Macedo , Lima Maria Auxiliadora Coêlho de
Published: June 2019

ABSTRACT The Submedium São Francisco Valley is renowned for its particular conditions for cultivating grapes for different uses. The production of grapes for juice is relatively recent, and thus, knowledge is still limited on components of the production system. The aim of this study was to characterize the quality and antioxidant activity of ‘BRS Magna’ grapes in irrigated crops of the Submedium São Francisco River Valley under the influence of training systems and rootstocks, in production cycles of the first half of the year. The experiment was conducted in the Experimental Field of Bebedouro/Embrapa Semiárido, in Petrolina, Pernambuco, Brazil. The following were studied: overhead trellis, lyre, and vertical shoot positioning (VSP) systems and rootstocks ‘IAC 572’ and ‘IAC 766’, in the production cycles corresponding to the first halves of 2017 and 2018. Experimental design was in randomized blocks, with sub-subplots through time and four replicates. Overall, responses depended on training systems, rootstocks, and production cycles, which determined specific traits of the grapes. Production in the first half of 2018 was characterized by high anthocyanin contents, high total extractable polyphenols, and higher antioxidant activity, and responses were differentiated according to training system and rootstock. Plants trained to overhead trellis and grafted on ‘IAC 572’ had higher accumulation of total extractable polyphenols and antioxidant activity in berries. Plants trained to VSP had increased sugar, yellow flavonoid, and anthocyanin contents in berries while lyre training system led to higher bunch mass.