bluuebunny/crossref_metadata_2025_split huggingface dataset:
Determination of Nicotine Extracted from Eggplant and Green Pepper by HPLC
Authors: Mohammed Zeinab Hashim 
Published: March 2019

Nicotine was separated from eggplant and green pepper seeds (Solanaceous) by High Performance Liquid Chromatography (HPLC).The concentration of nicotine in the eggplant extract (0.871-0.877 μg/ml) was determined by injecting standard material with 0.5 and 1.5 μg/ml, while the concentrations of nicotine in green pepper extract (0.613-0.618 μg/ml) was determined when the standard material was injected with 0.5 and 1.5 μg/ml. The qualitative chemical data was calculated from derivations of the standard material. Nicotine concentration was measured qualitatively in both extracts through the calibration curve and method of the standard addition. This technique has high accuracy and compatibility, bringing the proportion of relative recovery percentage of nicotine extracted from eggplant seeds to 95.880-103.104% and relative error of -4.119-3.104%. Relative recovery percentage of nicotine extracted from green pepper seeds was 97.284 -103.518 % and relative error was -2.716-3.518%.
Wheat response to increase levels of Urea fertilizer
Authors: Journal Baghdad Science 
Published: March 2019

Pots experiment was conducted in the green house of Biology Department, College of Education ( Ibn-AL-Haithum), University of Baghdad , during the growing season of 2005-2006 , to study the effect of five levels of urea fertilizer (0,50,100,150and 200) mg/pot in on vegetative growth of one wheat cultivar (Adanania) upon randomized complete block design with four replications.	The results showed that significant difference between urea fertilizer levels above in vegetative growth characteristics ( plant height , leaf area , chlorophyll content, dry matter weight , relative efficiency and relative yield )	It was also showed that 200 mg/pot level was superior to urea fertilizer levels others in above characteristics studied except relative yield .
Improving the Estimation of Hydraulic and Thermal Properties of Heterogeneous Media via the Addition of Heat Loss
Authors: Pan Mengqi , Huang Quanzhong , Feng Rong , Xu Xu , Xiong Yunwu , Huang Guanhua 
Published: March 2019

Core Ideas
Heat loss is the main reason for water flux underestimation.
Two methods were proposed to quantify the heat loss.
More accurate hydraulic properties can be estimated with the addition of heat loss.
Heat has been widely used to investigate water flow in soils and aquifers during the past few decades. However, heat loss as an important characteristic has not been well considered in laboratory heat‐tracing experiments. To evaluate the impact of heat loss on the estimation of hydraulic and thermal properties, a laboratory experiment was conducted using a sandbox packed with heterogeneous silica sand under steady‐state flow condition. Thermocouple probes were used to simultaneously measure the temperature inside and outside of the silica sand during the experiment. The measured temperature of the sand layer was used to estimate the hydraulic conductivities and longitudinal and transverse thermal dispersivities via curve fitting using HYDRUS software. We found that >50% of the sensible heat was dissipated into the shell of sandbox and the surrounding air rather than being absorbed by the sand. Two methods were then proposed to quantify the heat loss and to improve the accuracy of parameter estimation: (i) a conceptual heat balance method that accounted for the change in heat storage in different parts of the system and (ii) a physical process‐based method that described the thermodynamic processes of heat transfer among different parts of the system. On combining these two methods, the relative error between the estimated and measured water flux significantly decreased from 19% to nearly 2%. The results imply that the heat‐tracing method is capable of obtaining accurate hydraulic and thermal properties in a heterogeneous porous medium with the addition of heat loss.
Datos normativos y estandarización de un protocolo de pruebas neuropsicológicas para la evaluación de la memoria en estudiantes universitarios
Authors: Puerta Lopera Isabel Cristina , Dussan Lubert Carmen , Montoya Londoño Diana Marcela , Landinez Martinez Daniel Alfredo 
Published: March 2019

En el presente articulo se describen los resultados de un estudio de normalización y estandarización de tareas neuropsicológicas para evaluar la memoria en población universitaria. En el estudio participaron 208 estudiantes universitarios de Manizales sin patología neurológica o psiquiátrica asociada, evaluados con el Test de Aprendizaje Auditivo Verbal de Rey, el Test de la figura compleja de Rey, el Test de Audición Serial Pautada (Pasat), y Test de Retención Visual de Benton. En relación con el plan de análisis estadístico puede indicarse que la validez de apariencia fue evaluada mediante juicio de expertos; la de contenido utilizando análisis factorial; la validez de criterio concurrente, a través del coeficiente de correlación; la consistencia interna con el coeficiente alfa de Cronbach; la consistencia relacionada con el tiempo de aplicación mediante la proporción de aciertos y la consistencia relacionada con la aplicación por diferentes evaluadores, utilizando el coeficiente de correlación intraclase y la proporción de aciertos. Para establecer la normalidad de los datos se empleó la prueba de Shapiro Wilk, la comparación entre puntuaciones medias de hombres y mujeres se realizó con la U de Mann - Whitney o t de Student, finalmente se obtuvieron baremos para los test incluidos. Entre los resultados puede indicarse que se evidenció adecuada validez de apariencia, contenido y criterio concurrente para cada test, altos niveles de consistencia interna, confiabilidad pretest – postest, y confiabilidad relacionada con la aplicación de los diferentes evaluadores para las pruebas.
Corticosteroid Catabolism by Klebsiella pneumoniae as a Possible Mechanism for Increased Pneumonia Risk
Authors: Chattopadhyay Pritam , Banerjee Goutam 
Published: March 2019

Background:
Several strains of Klebsiella pneumoniae are responsible for causing pneumonia
in lung and thereby causing death in immune-suppressed patients. In recent year, few investigations
have reported the enhancement of K. pneumoniae population in patients using corticosteroid containing
inhaler.

Objectives:
The biological mechanism(s) behind this increased incidence has not been elucidated.
Therefore, the objective of this investigating was to explore the relation between Klebsiella pneumoniae
and increment in carbapenamase producing Enterobacteriaceae score (ICS).

Methods:
The available genomes of K. pneumoniae and the amino acid sequences of steroid catabolism
pathway enzymes were taken from NCBI database and KEGG pathway tagged with UniPort database,
respectively. We have used different BLAST algorithms (tBLASTn, BLASTp, psiBLAST, and
delBLAST) to identify enzymes (by their amino acid sequence) involved in steroid catabolism.

Results:
A total of 13 enzymes (taken from different bacterial candidates) responsible for corticosteroid
degradation have been identified in the genome of K. pneumoniae. Finally, 8 enzymes (K. pneumoniae
specific) were detected in four clinical strains of K. pneumoniae. This investigation intimates
that this ability to catabolize corticosteroids could potentially be one mechanism behind the increased
pneumonia incidence.

Conclusion:
The presence of corticosteroid catabolism enzymes in K. pneumoniae enhances the ability
to utilize corticosteroid for their own nutrition source. This is the first report to demonstrate the corticosteroid
degradation pathway in clinical strains of K. pneumoniae.
‘Ow Cockney is Beckham Twenty Years On? An Investigation into H-dropping and T-glottaling
Authors: Dahou Sofia , Hamlin Jasmine 
Published: March 2019

This research paper examines how language change can occur across the lifespan through the linguistic analysis of East Londoner, and world renowned football player, David Beckham. Specifically, we look at his use of the consonantal variables of t-glottaling and h-dropping and how the frequency of these forms change over a 20-year period. We discuss the background of the linguistic phenomena under investigation and the common environments in which these non-standard variants are likely to occur. We also take a closer look at how the forms are being used in certain phonotactic environments, for example, word-medial and word-final positions, and the potential reasons behind them being less common when preceding or following certain sounds. We discuss some common theories associated with language change across the lifespan, using quantitative data to find trends and qualitative interpretation to suggest social causes for our findings. The paper allows us to critically evaluate language change theories, such as Labov’ s (1978) apparent time theory.In designing our study, we hypothesised that Beckham would be seen to undergo linguistic change from his classic East London Cockney features to more prestigious forms. As t-glottaling and h-dropping are stigmatised forms which are commonly associated with a working-class background, we believed that Beckham would go from using a high rate of these variants in his teenage years, due to his lower socioeconomic background, to producing standard /t/ and /h/ more frequently, reflecting his dramatic upward social climb. Due to his rise to fame, we expected that his celebrity status would bring an added pressure to speak in a “correct” manner, therefore influencing Beckham to opt for the standard variants more frequently. The variants we looked at are also commonly associated with younger speakers, so we expected Beckham’ s aging to further affect his language.Our results support our hypothesis, showing the extent to which David Beckham’s language choices have changed over time. We found that he showed a significant decrease in both h-dropping and t-glottaling in all phonotactic environments. However, we also found a surprisingly high rate of t-glottalisation before consonants and after vowels in Beckham’ s 2014 recordings. Our data support theories concerning age, social class, sex and dialect convergence. Overall, our paper offers insight into the methodology and theory surrounding language change across the lifespan through the analysis of particular linguistics variables of an English speaker.
UPAYA PENINGKATAN KETERAMPILAN BERBICARA DALAM PEMBELAJARAN TEMATIK TERPADU MELALUI PI-MTPS KELAS IV SD
Authors: Suryani Dian 
Published: March 2019

Tujuan penelitian ini adalah untuk mengetahui apakah peningkatan keterampilan berbicara tematik terpadu dapat diupayakan melalui pendekatan inkuiri dan model TPS kelas IV SD semester 2 tahun pelajaran 2017/2018. Jenis penelitian ini adalah penelitian tindakan kelas (PTK), dengan menggunakan model spiral dari C. Kemmis dan Robin Mc. Taggart. Prosedur penelitian menggunakan 2 siklus, masing-masing siklus terdiri dari 3 tahap yakni, 1) perencanaan tindakan 2) pelaksanaan tindakan dan observasi, 3) refleksi. Subyek penelitian adalah siswa kelas IV SDN Tembarak Temanggung dengan 27 siswa yang terdiri dari 14 siswa laki-laki dan 13 siswa perempuan. Teknik pengumpulan data menggunakan observasi yang dilengkapi dengan rubrik pengukuran. Teknik analisis data adalah teknik persentase yakni membandingkan keterampilan berbicara dalam pembelajaran tematik terpadu melalui PI-MTPS antar siklus. Hasil penelitian menunjukkan bahwa terdapat peningkatan keterampilan berbicara tematik terpadu, yang diupayakan melalui PI-MTPS antar siklus, yakni sebanyak 44,4% dari seluruh siswa mencapai keterampilan berbicara tinggi di siklus 1 dan meningkat menjadi 81,4% dari seluruh siswa di siklus 2. Keterampilan berbicara dalam pembelajaran tematik terpadu meliputi keterampilan membuat rumusan masalah, keterampilan mengemukakan pendapat, terampil membaca puisi dengan intonasi, pelafalan dan ekpresi yang tepat serta lancar membaca puisi
Antecedents of online purchasing behavior Antesenden perilaku pembelian secara daring
Authors: Kuswati Rini , Saleha Amalia 
Published: March 2019

Abstract : This study aims to determine the effect of information quality, service quality, as antecedent of online purchasing decision behavior. The population in this study is consumer who had been shopping for products or goods through the sale and purchase site of tokopedia.com. This study using 100 respondents, sampling technique with purposive sampling method. The paradigm of this study is positivism and using survey as design research. Data analyzed in this research includes measurement test, normality test, multicollinearity test and heteroskedastisity test. Hypothesis testing using multiple linear regression analysis, t-test, F test, and the value of coefficient of determination (R²). The results showed that the quality of information has a positive and significant effect on the behavior of online purchasing decisions. Service quality variable have positive and significant effect to online purchasing decision behavior. Confidence variables have a significant and negative effect on online purchase decision behavior. Simultaneously the quality of information, service quality, and trust have a significant influence on the behavior of purchasing decision. The variance of independent variables in explainable online decision are 17,4% and the rest explained by other variable outside of this research.Abstraksi : Penelitian ini bertujuan untuk mengetahui pengaruh kualitas informasi, kualitas layanan, sebagai anteseden perilaku keputusan pembelian online. Populasi dalam penelitian ini adalah konsumen yang telah berbelanja produk atau barang melalui situs jual beli tokopedia.com. Penelitian ini menggunakan 100 responden, teknik pengambilan sampel dengan metode purposive sampling. Paradigma penelitian ini adalah positivisme dan menggunakan survei sebagai penelitian desain. Analisis data dalam penelitian ini meliputi uji pengukuran, uji normalitas, uji multikolinearitas dan uji heteroskedastisitas. Pengujian hipotesis menggunakan analisis regresi linier berganda, t-test, uji F, dan nilai koefisien determinasi (R²). Hasil penelitian menunjukkan bahwa kualitas informasi memiliki pengaruh positif dan signifikan terhadap perilaku keputusan pembelian online. Variabel kualitas layanan berpengaruh positif dan signifikan terhadap perilaku keputusan pembelian online. Variabel keyakinan memiliki pengaruh yang signifikan dan negatif terhadap perilaku keputusan pembelian online. Bersamaan dengan itu kualitas informasi, kualitas layanan, dan kepercayaan memiliki pengaruh yang signifikan terhadap perilaku keputusan pembelian. Varians variabel independen dalam keputusan online yang dapat dijelaskan adalah 17,4% dan sisanya dijelaskan oleh variabel lain di luar penelitian ini.
Examining Different Factors of Income Tax Non-Compliance in a Small Sample in Bangladesh
Authors: In Tishar Ashir , Hasanuzzaman Syed 
Published: March 2019

Abstract
Income tax non-compliance is worldwide delinquent and with the small volume of income tax collection Bangladesh has been facing its demerits for a long time. There is still a gap to measure income tax non-compliance behaviour in a micro direct approach. This study uses EVSCALE instrument to calculate the individual income tax non-compliance as a latent variable. The instrument consists of 15 items in Likert scale to measure the non-compliance behaviour of a person. The objective of this study is to identify the determinants of income tax non-compliance and key factors of EVSCALE in Bangladesh. The study collected opinions of taxpayers by primary data collection following a convenient sampling method. Logit regression analysis finds out that log monthly income, tax morale, tax education and occupation significantly influence income tax non-compliance. Exploratory factor analysis identifies six key factors that have consistency and shared variance. However, Cronbach’s alpha shows that five key factors have high reliability among six factors. According to rules of thumb, this study suggests that EVSCALE instrument needs modification by adding more items. This study argues that increasing participation in taxation system is a feasible policy for government instead of increasing tax rate.
Modelamiento termodinámico de los inhibidores de hidratos de gas (metanol) como formadores de depositaciones inorgánicas en sistemas de hidrocarburos
Authors: Castillo Benavides Carlos Iván , Chiriví Tenjo Jhon Alexander 
Published: March 2019

El presente estudio modela el efecto causado al adicionar un inhibidor de hidratos de gastermodinámico como el metanol, en la formación de depositaciones inorgánicas de barita, calcita, halita, y eso y celestita. Para ello se utilizaron como fuentes bibliográficas diversos artículos publicados por la Sociedad de Ingenieros de Petróleos – SPE- y artículos publicados por investigadores de la Universidad de Rice en la SPE. Para modelar este efecto, se realizó una herramienta de cómputo en lenguaje de programación visual basic 6.0 denominada “OilScaleInhibidor”, que fue adicionada al programa “OilScale” desarrollado por el grupo de investigación de comportamiento de fases de la Universidad Surcolombiana COFA. La función de esta herramienta de cómputo, es predecir las depositaciones inorgánicas de barita, calcita, halita, yeso y celestita ocasionadas al adicionar metanol en sistemas gas/metanol/agua/sal. La herramienta de cómputo OilScaleInhibidor, posee una exactitud aceptable en la predicción de las depositaciones inorgánicas ocasionadas por el efecto de adicionar inhibidor de hidratos de gas. Los valores obtenidos de índice de saturación mediante las diferentes fuentes analizadas generaron errores promedio absolutos de 8.5 %.
Fundamentos para la instrumentación y calibración de equipos en una batería de producción
Authors: López M. Juan Carlos , Tovar l. Mario Alberto , Hernández M. Jairo 
Published: March 2019

Este artículo se refiere al proyecto que se presentó al personal que labora en la compañía HYDROCARBON SERVICES LTDA., así coma a los contratistas a quienes se suministró la información suficiente acerca de los procedimientos de calibración de los principales instrumentos que se encuentran en una batería. También el proyecto cuenta con una base teórica que provee a las estudiantes de ingeniería de petróleos una excelente guía. Teniendo presente la anterior, se aclarara la importancia de mantener calibrados los instrumentos de medición y la realización de calibraciones de carácter preventivo para no solo garantizar que el proceso se ha llevado a cabo con mediciones precisas sino también para evitar las pérdidas por fallas en las equipos. Al enunciar los requisitos exigidos por la NTC-ISO-IEC 17025 (requisitos generales para el servicio en laboratorios de calibración y ensayo) se muestra cuáles son las características con que debe contar un laboratorio que preste los servicios de calibración a los instrumentos patrón, con las cuales se realizaran la calibración de los instrumentos en la batería. Finalmente se cuenta con la descripción de los principales instrumentos con que cuenta una batería y sus procedimientos de calibración conforme a las normas de seguridad y lineamientos del sistema de calidad de la compañía HYDROCARBON SERVICES LTDA.
Attitudes to Evidence-Based Practice among Social Work Practitioners in South Africa
Authors: Booysen Frederik , Mbecke Paulin , De Gouveia Amanda , Manomano Tatenda , Tanga Pius 
Published: March 2019

The implementation of evidence-based social work practice is an international priority. Attitudes to evidence-based practice are instrumental in its dissemination and active implementation. This paper, the first of its kind, explores the nature and correlates of attitudes to evidence-based practice among social work practitioners in South Africa, based on a descriptive statistical analysis of data from a small online survey. In terms of results, the Evidence-Based Practice Attitude Scale suggests that respondentsâ€™ attitudes to evidence-based practice are generally positive. One exception is the requirements sub-scale, where performance indicates some resistance to a regulatory or authoritarian approach to the implementation of evidence-based social work practice. Furthermore, the limited evidence presented here shows that more experienced social work practitioners are less inclined to adopt prescribed evidence-based practice. Moreover, they find such practice less appealing, and are less open to implementing new structured and manualised interventions. With regard to recommendations, it is proposed that training in evidence-based practice be incorporated into continuous professionalÂ development programmes for social work practitioners. In addition, studies of this nature should be replicated on a more comprehensive and representative scale in South Africa and other developing countries.
ON THE SITUATED SOCIO-CULTURAL MEANING OF BENEFACTIVES IN BALINESE
Authors: Pratiwi Desak Putu Eka , Arka I Wayan , Shiohara Asako 
Published: March 2019

This paper discusses a preliminary corpus-based study of benefactives in Balinese, from a socio-cognitive theory of situated socio-cultural meaning (cf. Langlotz 2015, Danielle and Evans 2017). It is part of larger corpus-based research on parallel texts in the international SCOPIC (Social Cognition Parallax Interview Corpus) project (http://hdl.handle.net/10125/24742). Benefactive constructions are defined as those expressing states of affairs (SoA) hold to someone’s advantage (Kittilä and Zúñiga 2010). The notion of '(someone's) advantage' in Balinese benefactive meaning is tightly embedded in Balinese cultural worlds, having complex positive social meanings in which concepts such as 'self', 'reciprocity', 'in-.out-group', and spiritual rewards are central. The socio-cultural worlds are evidently reflected the speech level system in Balinese. There are different forms with fine-grained social meanings such as three words for 'give' in Balinese depending on the relative social relations of event and/or speech participants. An incorrect choice of linguistic device would lead to incorrect social indexing; hence socially unacceptable or inappropriate, not giving rise to the intended positive benefactive meaning. Our findings show that benefactive meaning is expressible through different means (lexical, morphological, and analytical/constructional). Surprisingly, the lexical benefactive 'give' is 100% expressed through the verb baang in our Balinese SCOPIC corpus, suggesting that the corpus is rather skewed towards the common (or low) register.
Tempo, Memória, Narrativa e Teoria Sociológica
Authors: Neres Marisa Souza 
Published: March 2019

Neste ensaio, parte-se da premissa de que as vivências experimentadas pelos seres humanos no mundo são concebidas, cultivadas, realizadas, compartilhadas, dotadas de significação em relação ao modo como se dá a percepção do tempo. Paul Ricoeur se impõe como um interlocutor fundamental. Tomando e ampliando a descrição agostiniana sobre a memória, ele propõe a noção de tempo intimamente conectada à experiência humana registrada e contada por meio de narrativas. É na mediação e na construção proporcionada pela narrativa que o tempo se torna tempo humano. A memória, assim, pode ser vista menos como um lócus depositário das lembranças, e mais como matéria-prima a partir da qual se constroem narrativas, assim como as narrativas constituem-se como matéria-prima a partir da qual se constroem memórias. Do ponto de vista sociológico, será posta em discussão a concepção de Pierre Bourdieu, demonstrando como para este autor a percepção do tempo é muito mais do que algo pertencente ao âmbito psicológico; é, antes, algo construído socialmente. Problematizar a teoria sociológica como um tipo particular e peculiar de narrativa e igualmente questionar que fatores proporcionam as causas e condições para que certas narrativas constituam certas teorias em detrimento de outras, de modo que umas e não outras sejam gravadas na memória de forma duradoura é o objeto que aqui se pretende para discussão.