bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect Different Concentrations of Crude Oil on the Pigment Content and Protein Content of Hydrilla Verticillata Plant
Authors: Alzurfi Sadiq Kadhum Lafta , Alasedi Kasim Kadhim , Abdulraheem Noor Imad 
Published: June 2021

The current study was conducted to determine the effect of crude oil on the pigments and protein content of Hydrilla verticillata plant from December 2018 to February 2019. Hydrilla verticillata was exposed to different concentrations of treatments (0.01,0.05,0.10,0.20) % of crude oil for 24 days. The pigments content was evaluated as total chlorophyll, a, b, carotene and protein content within plant tissues during the days (1, 8, 16 and 24).
The results of this study showed an increment in the total chlorophyll values of plant, which is exposed to different concentrations of crude oil compared to the control treatment during the first day of the experiment and decreased compared to control treatment during 8,16 and 24 days of the experiment. The recorded maximum value of total chlorophyll was (29.49) Î¼g / g at 0.10% treatment during the first day and the statistical analysis showed significant differences below the probability level (P> 0.05) between the concentrations and the days of the experiment. Chlorophyll a, b and carotene of plant exhibit the overall trend of total chlorophyll. The values of chlorophyll b were higher than the values of chlorophyll and carotene.
The current study showed a gradual decrease in the total protein values of plants in crude oil during experiential period compared to control treatment, recording the highest values at the 0.01% during the first day (29.4 mg/g) and the lowest in the concentration of 0.05% during the day 24 was (3.5) mg / g, and the statistical analysis showed significant differences below the probability level (P> 0.05) between the days and concentrations of the experiment. The study concluded that a gradual decrease of total chlorophyll values during period experimental, recorded the chlorophyll b values higher compare to chlorophyll a and carotene. the gradual decrease of protein values with the increasing the concentration.
Lyoluminescence Dosimetry of L-Proline Incorporated of Sensitizer Dependence on the Temperature and pH of Solution
Authors: Abdulqader Qahtan Adnan , Alhasan Ammar Mohammed 
Published: June 2021

To increase the sensitivity of dosimeter, it has to improve the properties that are required to increase its sensitivity. It was proven that the dependence of lyoluminscence (LL) of irradiated amino acid (L-prolin) incorporated with chemiluminscence reagent (luciginine) on the pH and temperature of the solution. LL means the emission of light from dissolved material in a suitable solvent, which is previously exposed to ionizing radiation. When the incorporated phosphor irradiated to gamma rays an electronically excited species are trapped within the solid matrix, this extra energy will be emitted in the form of light ( 420-500nm), on dissolving the material in water in this test. The LL intensity increases with increasing pH of the solution. The best reproducible and optimum LL intensity is at (pH=8.5-9) of the solution, However, LL intensity will be decreased when the PH is higher than 12. In this value of pH the stability of free radicals is optimum. The same is found for solvent temperature dependence, the optimum LL intensity is at 45-48 oC. LL intensity will increase up to 70 oC,it was found that the total glow increased because of increasing the self-glow of luciginine , but LL intensity will decrease because of dissociation of phisphore structure. In addition to the self-glow of the sanitizer will increase too at temperate up to 70 oC , however, that will cause self-glow to the dosimeter material.
The effects of Insects on the Physicochemical Characteristics During Composting
Authors: Jalal Sayran Yousif , Hanna Nihal Suhail , Shekha Yahya Ahmed 
Published: June 2021

Insects have a vital role in solid waste composting process. Insects are detritus feeders that enhance changing the physical and chemical properties of decomposed materials during composting processes. This behavior makes insects excellent organisms in recycling of organic matter. The present study assesses the success of insectsâ€™ population in relation with the degradation of solid waste. The study was carried out in the glass house facility of the College of Science, Salahaddin University in Erbil City, Kurdistan region of Iraq, using household organic waste. During composting process, three stages of lifecycle of insects were observed and recorded. The total number of insects reached to 1268 individuals, belonging to the orders Coleoptera and Diptera, class Insects. Diptera individuals were the most abundant insects with 95.4% of the total belonged to four families (Muscidae, Calliphoridae, Ulidiidae and Milichiidae). Coleoptera individuals represented 4.6% of the total number, belonging to three families (Promecheilidae, Staphylinidae and Salpingidae). The measured physicochemical characteristics of the compost included: pH, EC, moisture, total organic carbon, total nitrogen, total phosphorous and organic matter. The pH value of the composts ranged from 7.79 to 7.97. Organic carbon content and organic matter content ranged from 20.16 to 26.99 % and 34.67 to 46.23 %, respectively. It can concluded that household waste compost is not just a waste but has the potential to be transformed into a good quality organic fertilizer through composting. Composting can convert solid organic waste into a valuable added material.
Detecting the Possibility of Soil Pollution with Radon Emissions for an Area Located within Baghdad University Campus- AL-Jadiriyah
Authors: Al-Khafaji Wadhah Mahmood Shakir , Mehdi Ruwaida Tariq , Rejah Basim Khalaf 
Published: June 2021

This research deals with the detection of possible surface soil pollution by radon emissions for an area located inside the university of Baghdad campus at AL-Jadiriyah / Baghdad. The area is about 5625 m2 and located near the College of Science for Women. The area used as construction rubbles dump yard in the past, while recently it is covered with Silty - Clayey soil furnished with grass and used as a playground. A surface survey performed on October 2018 by gridding the area into 36 stations where surface radiometric pollution readings recorded and soil samples collected by using an auger for the top 30 Cm which represents the root zone of the area. Soil samples tested in the laboratory by using can technique with CR-39 type track detectors, while surface readings performed by using a portable Geiger counter device. Soil surface readings and laboratory analysis results were processed by computer in order to draw contour maps which showed the variation of radon emission anomalies across the area. The aim behind this processing and interpretation is to provide an evaluation for the health environmental impact related to the radioactivity of the top soil and the area surface. The results of this study showed that radon emissions were below the standard limits and this makes it possible to invest the area for future human housing and other activities.
The Use of Ground Penetrating Radar to Assess the Concrete
Authors: Mohamed Anas A. , Jawad Laith A. , Mahmood Faleh H. 
Published: June 2021

Ground Penetration Radar (GPR) is a modern and promising geophysical technique for near-subsurface exploring and observing because of its characteristic working scheme (instantaneous underground radargram displaying and subsurface features preserving during the detection tests). In this technique a very high and/ or ultra-high electromagnetic radiation frequencies were utilized to be transmitted to the targeted underground area, then the reflected ones which occur because of the sudden changes in the medium electric properties or texture would be recorded and processed to achieve the final GPR radargram.
The main goal of this study is to find out the GPR radiation extension which is suitable for concrete or rebar tiling identifying and measuring in addition to discover the cracks in the concrete walls, the minor goal is studying the effect of GPR device parameters changing on produced radar imagery and identifying the most effective parameter settings for concrete buildings cornerstone locating and wall cracks detection. These parameters are (radiation phase velocity m/sec., frequency coding or sampling, time windows in nano sec., and background removal for unwanted layers removing). The study executed using 1000 MHz antenna on 12 paths and clearly showed that the most important filter/ and or parameter in concrete sites locating and mapping is the "background removal" filter, while other parameters were image improvement ones or sometimes had a negative role in detection procedure.
Phylogenetic tree analysis based on the 16S sequence alignment for Klebsiella spp. isolated from different sources
Authors: Abdul Qader Mustafa Basil , AlKhafaji Marwa Hameed 
Published: June 2021

16S ribosomal RNA (16S rRNA) gene sequences used to study bacterial phylogeny and taxonomy have been by far the most common housekeeping genetic marker utilized for identification and ancestor determination. This study aimed to investigate, for the first time, the relationship between Klebsiella spp. isolated from clinical and environmental samples in Iraq.
Fifty Klebsiella spp. isolates were isolated from clinical and environmental sources. Twenty-five isolates were collected from a fresh vegetable (Apium graveolens) and 25 from clinical samples (sputum, wound swab, urine). Enteric bacteria were isolated on selective and differential media and identified by an automatic identification system, vitek-2. The total DNA was extracted and PCR amplified for selected isolates. The 16S rRNA gene was amplified by using the universal primer 27F (5'- AGAGTTTGATCCTGGCTCAG- 3') and 1492R (5'- GGTTACCTTGTTACGACTT- 3â€™). The 16SrRNA gene sequence was analysed among some local isolates, and the results were compared with the standard data of similar registered strains in NCBI. The most common species of Klebsiella was Klebsiella pneumoniae pneumoniae (Kpp), followed by Klebsiella pneumoniae ozaenae (Kpo) and Klebsiella oxytoca (Ko). The results of the identification of species and sub species by using the biochemical test (vitek-2) were more precise than those obtained by the use of the universal primer.Phylogenetic tree strategies have clearly indicated a relatively close similarity amongst all analysed Klebsiella isolates and revealed the intra-species genetic distance between the individual isolates of the Klebsiella spp. In conclusion, our results revealed the main advantage of using universal primers for the identification of Klebsiella spp. and their root from nature.
El estrés académico y resiliencia en madres universitarias colombianas con y sin apoyo institucional en el cuidado de sus hijos
Authors: Osorno-Foronda Maria Alejandra , De Hoyos-Rivera Mileth , García-Vallejo Maria Alejandra , Cordoba-Sanchez Verónica 
Published: June 2021

Son cada vez más las mujeres que asumen simultáneamente los roles de madre y estudiante en el ámbito universitario; lo cual puede hacerlas vulnerables a factores que obstaculizan su adecuado proceso académico. A través de un estudio cuantitativo, con un diseño de casos y controles, se analizó la asociación entre el estrés académico y la resiliencia en una muestra de 52 madres de dos instituciones universitarias colombianas: el Instituto Tecnológico Metropolitano y la Institución Universitaria de Envigado, de las cuales, la primera cuenta con un aula pedagógica de apoyo en el cuidado de los hijos de las estudiantes y se constituyó en el grupo de casos y la segunda no cuenta con este beneficio, conformando el grupo de control. Para la recolección de datos se aplicó un cuestionario sociodemográfico, la Escala de Resiliencia SV-RES y el Inventario de Estrés Académico SISCO. Se halló que el grupo de control tuvo niveles superiores de estrés psicológico y presentó una asociación negativa entre el estrés psicológico, comportamental y físico y el nivel total de resiliencia.
Para além das antinomias
Authors: Michetti Miqueli 
Published: June 2021

O artigo analisa alguns dos temas centrais dos trabalhos de Renato Ortiz sobre o tema da globalização, com foco nas relações entre cultura e mundialização. Após discutir o ambiente teórico diante do qual o autor estabelece suas reflexões e a postura epistemológica que adota, o texto se volta Ã sua compreensão original da problemática das relações entre cultura e economia no mundo contemporâneo. Na sequência, delineia-se uma linha de continuidade entre seus trabalhos sobre identidade nacional e seus estudos sobre o que denomina de modernidade-mundo, para destacar a particularidade de suas elaborações sobre as questões da identidade e da diversidade cultural. Ao final, são sublinhadas algumas das principais contribuições legadas pelo autor, a saber, a atenção Ã questão do poder, a complexidade necessária ao empreendimento crítico, o pensamento relacional, a superação do culturalismo e a apurada compreensão sociológica do presente histórico.
Diante da grande ferida
Authors: Gayão Nicolau 
Published: June 2021

A obra e vida de Frantz Fanon ”“ incluindo a publicação recente de textos até então inéditos e ainda pouco estudados, como suas peças e cartas ”“ são analisadas com o intuito de reconstruir o seu conceito de amor. A partir de sua crítica Ã s formas raciais e patriarcais de amor e da sua análise da violência colonial, o ensaio argumenta que a noção fanoniana de amor, elaborada numa linguagem ética e filosófica, pode ser entendida como o movimento do Eu em direção a Você, que almeja tornar real a possibilidade de sua existência para que todos possamos viver; e como uma forma de relação humana ligada profundamente com a escrita e com a luta política por libertação.
Lack of Native Hawaiian Neurologists and Disparities in Care for Native Hawaiians in Hawaiʻi
Authors: Smith Maiya , Tse Christina , Fancher Nicholas , Hiroi Ryoko , Harris William , Kutlu Selin , Anzai Nicole , Miura Heather , Chang Bryce , Miles Douglas 
Published: June 2021

Introduction: In Hawaiʻi, there are 367,000 Native Hawaiian and Pacific Islanders. Native Hawaiians experience health disparities in a variety of conditions, including stroke, diabetes, and cancer. Ethnic minorities are underrepresented among physicians; this lack of physician-patient racial concordance may contribute to the disparities, as recent studies suggest that racial discordance resulted in poorer healthcare quality. This study aims to assess the current status of neurological health disparities in the Native Hawaiian population in Hawaiʻi, with a focus on identifying neurologist ethnic representation, neurological diseases, and healthcare-related challenges disproportionately affecting Native Hawaiians. Methods: An anonymous survey on physician’s attitudes and practice was emailed to all neurologists in the Hawaiʻi Neurological Society from February 2019 to June 2019. Findings: Twenty-three full responses and one partial response was received. No participants self-identified as Native Hawaiian nor did they know of any Native Hawaiian neurologists in Hawaiʻi, yet all who completed the survey reported treating Native Hawaiians in their practice (n = 23), which identifies a gap in Native Hawaiian representation in the field of neurology in Hawaiʻi. In addition, majority of participants perceived that Native Hawaiians are disproportionately affected by neurological diseases and have difficulty accessing neurology services and obtaining quality care. Conclusions: Future focus on creating opportunities to improve racially discordant physician-patient relationships and to increase Native Hawaiian representation in neurology may help narrow the gap in health disparities experienced by Native Hawaiians.
The Correlations Among Teachers’ Competences, Students’ Learning Motivation, and Students’ English Proficiency
Authors: Septiani Eka , Petrus Ismail , Mirizon Soni 
Published: June 2021

Abstract. Teachers’ competences and students’ motivation have been long suspected to have influence on students’ English ability. Some studies have been conducted to investigate the relationship. However, some information is unobserved. This study intended to fill the gap in literature concerning the relationship among teacher’s competences, students’ learning motivation, and students’ English proficiency at Junior High Schools in OKUT. The samples of the study were 30 teachers and 918 students. The data were collected through documentation (teachers’ competence test result and students’ English proficiency test result) and questionnaire (students’ learning English motivation). The results showed that there was a significant correlation between the English teachers’ competence and the English proficiency of students showed by robtained = .363, (p=.49) which was higher than the rtable (.361). Then, there was a positive significant correlation between students’ motivation in learning English and their English proficiency achievement (r= .711, p = .000). Meanwhile, the correlation between teachers’ competence and students’ motivation in learning English also showed that there was a positive significant correlation between these variables ( r = .753, p = .000) . At last, the correlation was also found between the predictor variables (teachers’ competence and students’ learning English motivation) and criterion variable (students’ English proficiency) with correlation coefficient 0.758 significant at .01 level. The contributions given by predictor variables to criterion variable were also analyzed. The result of stepwise method showed that predictor variables contributed to 54.4% of the criterion variable. Keywords: teachers’ competences, students’ learning motivation, students’ English proficiency, correlation, contribution
When teaching must go on: ESP teachers’ strategies and challenges during COVID-19 Pandemic
Authors: Iswati Luluk 
Published: June 2021

Abstract. Online classes have been rampant since the global spread of COVID-19. ESP teaching in higher education institutions is no exception, following the national government’s call to employ an online mode of teaching. Although technology has been long used to facilitate the teaching-learning process, the practice of online teaching is not without problems. Thus, this study was aimed at investigating ESP teachers’ strategies to make effective lessons delivery, optimize students class participation, and what challenges were emergent during their online teaching. The participants of this study were six ESP teachers in five private and one state universities who teach in various non-English departments. Data were gathered through interviews via WhatsApp. The findings showed that the strategies employed by ESP teachers were among others: ensuring instruction clarity, employing various learning platforms, virtual grouping, using authentic materials, etc. To optimize students’ online class participation was done by scoring students’ active participation, not giving non-doable tasks, using more asynchronous than synchronous method, etc. The challenges are having inconsistent internet connection, teaching while taking care for children, difficulty in monitoring students’ progress, etc. The findings imply the need of serious attention from higher education institutions in conducting ESP online teaching during this pandemic as it requires not only technical preparedness, but also most importantly the human aspect involved in it. Keywords: strategies, challenges, online teaching, ESP, pandemic
Students’ Understanding on Spoken Discourse in The Context of English Language Teaching (ELT) at University
Authors: Susanto Dias Andris , Oktavia Masitoh , Sembiring Lina Tri Astuty Beru 
Published: June 2021

Abstract. This is a case study on students’ understanding towards a subject of discourse analysis at English language education study program at University in Indonesia. The goal of this study is to describe the definitions, the examples, and the applications of spoken discourse analysis on their context of English language teaching (ELT). The writers used qualitative research approach to analyze these data through implementing Atlas.ti8 which is known as the tool of analyzing the field qualitative data. The sample was the students of 7th grade semester consisting 30 people. In collecting the data, we used online direct interview in the classroom and by time they replied the questions on the time using the google form by Microsoft. In analyzing the data, we used atlas.ti.8 online to draw the result of the research as followings; that students’ understanding about the definitions of spoken discourse analysis have some various key terms like; -a research method of spoken language, -knowledge of language, how language used, study of language, and study of the texts. Then, its examples are; they can picturize as; speaking on the phone, conversation, interview, putting markers, turn taking, group of discussion, using advertisement, people interaction, joke, speech, also transferring information. Moreover, its applications are such as; communicating with teachers/parents, interacting with students/people, go to the market, baby crying, ceremony, and communicating with friends. The conclusion is that spoken discourse analysis has been understood by students even though it is not easy to define, giving example and declaring the application in the real context English language teaching. Keywords: students’ understanding, spoken discourse analysis, ELT
Pengaruh Model Pare (Preview, Ask, Read, Evaluate) Terhadap Kemampuan Berpikir Tingkat Tinggi Siswa SD Inpres Galangan Kapal IV Kecamatan Tallo Kota Makassar
Authors: Nurhaedah Nurhaedah , Rahman Abdul , Nursiah Nursiah , Idrus Nur Abidah 
Published: June 2021

This study aims to describe the high-level thinking skills of students of SD Inpres Galangan Kapal IV, Kecamatan Tallo Kota, Makassar and to determine whether there is influence of the PARE learning model (preview, ask, read and evaluate) on high-level thinking skills of SD Inpres Galangan Kapal IV Kecamatan Tallo Kota, Makassar. This study uses a quantitative approach to the type of experimental research. The research design used was pre-experiment with the form of intag group comparison. The population in this study were all students of SD Inpres Galangan Kapal IV Kecamatan Tallo Kota, Makassar. The sample in this study were fifth grade students who were divided into two groups, namely the experimental group and the control group using the purposive sampling technique. Data collection techniques used in this study are observation and documentation. The data analysis technique used is descriptive analysis and inferential analysis using the independent sample t-test. The results of this study indicate that the higher order thinking skills of students in the experimental group were in the moderate category, while those in the control group were in very low categories. The results of the Independent Sample T-Test, post-non-test scores in the experimental group and the control group showed the results of Sig. (2-tailed) <0.05, which means that there is the influence of the PARE learning model (preview, ask, read and evaluate) on the higher order thinking skills of students of SD Inpres Galangan Kapal IV Kecamatan Tallo Kota Makassar. Based on the results of this study it can be concluded that the PARE learning model (preview, ask, read and evaluate) can affect students' high-level thinking skills.