bluuebunny/crossref_metadata_2025 huggingface dataset:
The use of LRD strategy to improve student’s reading comprehension in English narrative text at the third grade of SMPN 3 Jati Agung
Authors:   Universitas Lampung, Handayani Adhe Shinta , Sukirlan Muhammad ,   Universitas Lampung, Suka Ramlan Ginting ,   Universitas Lampung
Published: March 2022

This research aimed to investigate whether there was an improvement in student’s reading comprehension before and after being taught through LRD strategy and find out their response toward the strategy. This research conducted at SMPN 3 Jati Agung academic year 2019/2020, with the total number of samples was 32 third grade students. The data collected by using multiple choice and questionnaire. To analyze quantitative data, the researcher used t-test while qualitative data applied scale Likert. The result showed there was an improvement in student’s reading comprehension after being taught through LRD strategy with the significant level <0.05. The students also agreed this strategy was easy to follow in the lesson to understand the materials. It can be concluded LRD strategy makes a positive impact on student’s reading comprehension.
Improving students’ reading comprehension through question answer relationship (QAR) strategy at the first grade on SMAN 3 Kotabumi
Authors:   Universitas Lampung, Astuti Fitria Widia , Suparman Ujang ,   Universitas Lampung, Yufrizal Hery ,   Universitas Lampung
Published: March 2022

The aims of this research are to find out whether there is a significant difference of students’ reading comprehension at the first grade of SMAN 3 Kotabumi before and after the implementation of QAR strategy and to investigate which aspect of reading comprehension improves the most after the implementation of QAR strategy. This research was a quantitative research which used a one group pre-test and post-test design. This research was conducted on January 17th to February 21st 2020 in which the population was the first grade of SMAN 3 Kotabumi. The sample of this research was class X MIPA 4 which consisted of 30 students. The data was analyzed by using Repeated Measure T-Test in which the criteria of accepted hypothesis were p < 0.05, and t-value > t-table. The result of this research showed that there was a significant difference of students’ reading comprehension after the implementation of QAR strategy. It can be seen from the students’ mean scores of pre-test and post-test which improves from 63.44 to 71.22 in which the gain was 7.78. The statistical analysis also revealed that t-value was higher than t-table (19.341 > 2.04523) with the significant level of 0.000. Besides that, the researcher also finds that making inference the aspect of reading comprehension which improves the most and the lowest was understanding vocabulary. It can be concluded that QAR strategy can be applied to improve students’ reading comprehension ability and all aspects of reading comprehension can be integrated using QAR strategy.
A Survey Study: The Students’ Reticence in English Classroom at Senior High School in Pekanbaru
Authors: Gushendra Rizki , Aprianti Dinda Suci
Published: March 2022

The students are expected to be active in teaching and learning process. However, according to the preliminary study on Senior High in Pekanbaru. The students still have problem in learning English.  They are reticent and passive in the classroom. They tend to be silent and quiet during the learning process.  The class participation is far from the expectation of the learning objective from the curriculum. Therefore, this research was aimed to find out the factors that influenced students’ reticence in English classroom and the dominant factor that caused students reticence at Senior High School in Pekanbaru. This research is descriptive quantitative research, which data were collected by a questionnaire. The sample was randomly selected for 102 students out of 289 students of population. the writer found the factors that influence of students’ reticence in English classroom; First, they are the individual factors with 3.05 mean score by the percentage was 61.1%. Second, psychological factors with 2.71 mean score by percentage 54.3%. Third, affective factors with 2.65 mean score by percentage 53%.  Fourth, environment factors with 2.60 mean score by percentage 52.1%.  Finally, linguistic factors with 2.53 mean score by 50.6%. Meanwhile, the dominant factor that caused the students’ reticence in English classroom is individual factors that were the main indicator is underprepared with the percentage of 62.6%. The students felt nervous and did not confident to speak English. Therefore, it is better for the teacher to know the factors contribute to that reticence and could minimize the dominant factors in order to pursue the teaching and learning process more efficiently and enjoyable in learning English.
The Effect of Using Group Work Technique on Students’ Reading Comprehension at the First Year of Senior High School 4 Mandau
Authors: Ulatifah Annisa Tul , Nuardi N.
Published: March 2022

This research was aimed to find out The Effect of Using Group Work Technique on Students’ Reading Comprehension.  The  design  of  this research was quasi experimental. The population  was the total of tenth grade students that consist of 10 classess. Meanwhile the sample was proportion of the population that consist of 2 classes. X6 was experimental class and X9 was  control  class.  The  number  of  sample  was  selected  by  using  cluster sampling. To analyze the data the writer gave pretest and posttest then analyzed the data by using independent sample t-test by using SPSS 16 version and effect size formula. After analyzing the data, where the 2-tailed value was smaller than 0.05 (0.000 < 0.05). The result of effect size was 0.3 categorized as large effect. Thus, null hypothesis (Ho) is rejected, and alternative hypothesis (Ha) is accepted. So, it can be concluded that there was a significant effect of using Group Work Technique on Students’ Reading Comprehension
The Effect of Using Vocabulary Journal Strategy on Students’ Reading Comprehension at State Junior High School 1 Cerenti Kuantan Regency
Authors: Juita Irma
Published: March 2022

This research was urged by the students’ problem in reading narrative texts at State Junior High School 1 Cerenti Kuantan Singingi Regency. For example, some students still had the difficulties in finding out the main idea and analyzing the reading text. Thus, the writer was interested in carrying out this research based the problems above. The objective of this research was to find out whether there was or nor  significant effect of using Vocabulary Journal strategy on students’ reading comprehension at State Junior High School 1 Cerenti Kuantan Singingi Regency.The design of this research was a quasi experimental design. The population of this research was the eighth grade students of Junior High School 1 Cerenti Kuantan Singingi Regency in 2015-2016 academic years. The sample was taken by using cluster random sampling. The sample was VIII 1 as an experimental class, and VIII 2 as control class. Thus, the number of sample from two classes was 54 students. To analyze the data, the writer adopted independent sample T-test formula by using SPSS 16.0 version. After analyzing the data, the writer found the result of t-observe was 2.03 < 5.386 > 2.72. Thus, the writer could conclude that there is a significant difference between the students taught by using and taught without using Vocabulary Journal strategy on students’ reading comprehension in narrative text at State Junior High School 1 Cerenti Kuantan Singingi Regency.
The Correlation Between Self Assessment and Speaking Ability of the Eighth Grade Students at Junior High School 16 Pekanbaru
Authors: Nurdiana N. , Khalistha Rina Dwi
Published: March 2022

This research is a correlational research, which aims at finding out the correlation between self assessment and speaking ability. There were two variables used in this research, was variable X (Self Assessment) and variable Y (Speaking Ability). The subject of this research was the eighth grade students at Junior High School 16 Pekanbaru whereas the object of this research was the correlation between self assessment and speaking ability. The population of this research was 197 students. To choose the sample, the researcher used simple random sampling technique and got 40 students as the sample. In collecting the data, the researcher used questionnaire for self assessment and oral test for speaking ability. From the data analysis which had been done by using SPSS 20.0 version, it could be seen that there was a significant correlation between self assessment and speaking ability. It could be shown that the probability of score sig.t is 0.000, smaller than the significant alpha of 0.05 (sig.t < 0.05). It means that H0 is rejected and Ha is accepted. In other words, there is a significant correlation between self assessment and speaking ability.
L1 Transfer: Indonesian Grammatical Interference (IGI) on pre-Service English Teachers’ L2 Writing
Authors: Putriani Zelly
Published: March 2022

It is recognized that second and foreign language (L2) learners’ production is influenced by their first language (L1). Pre-service English teachers, who are assumed to have good English language proficiency, also demonstrate influences from their L1 (Indonesian) in relation to English grammar production. Through an explanatory case study, I conducted a writing for translation test which asked the study participants to identify 21 grammatical differences between English and Indonesian. The test was designed to reveal the dominant types of Indonesian grammatical interferences made by pre-service English teachers. The aim of the study was to provide empirical evidence to support these findings, and to consider their implications for pre-service English teachers and education practitioners more broadly. Through both error analysis and interference analysis, I found 805 Indonesian grammatical interference cases, categorized into 20 types of Indonesian interference. Following this fact, six dominant types of interferences were established (adjective and adverb, to be, active and passive, number, tense, and question form). The findings indicate that, because of Indonesian L1 transfer, pre-service English teachers had failed to adequately master these six parts of fundamental English grammar. Thus, meaning and form transfers from their L1 were impacting on the participants’ use of English grammar. The results have implications for English teaching pedagogy, and in particular for pre-service English teachers’ awareness of Indonesian grammatical interference (IGI).
Students’ Errors in the Use of Present Participle in Translating Simple Dialog at the Eleventh Grade of SMK Taruna Masmur Pekanbaru
Authors: Putri irawan Veby Aisyah , Syafi'i M.
Published: March 2022

The research proposed a formulation of the problem: what kinds of errors were produced in the use of present participle in translating simple dialog by the students at the eleventh grade of SMK Taruna Masmur Pekanbaru. The objective of the research was to explain the kinds of students’ errors in the use of present participle in translating simple dialog at the eleventh grade students of SMK Taruna Masmur Pekanbaru. The research design is descriptive research. The population of this research was the eleventh grade students of SMK Taruna Masmur Pekanbaru in 2017/2018 academic year. It consisted of one class; the number of population was 14 students. The sample of this research was 14 students. The instrument of this research were test and documentation. The technique of analyzing data was quantitative analysis. Based on the data analysis, the researcher concluded that the percentage of all indicators were misformation (40 errors or 56.3%), omission (17 errors or 23.9%), addition (13 errors or 18.3%), and misordering (1 error or 1.4%). From the data above the most common errors produced by the eleventh grade students of SMK Taruna Masmur Pekanbaru was misformation consisting of 40 errors or 56.3%.
An Analysis of Students’ Error on the Use of Simple Preposition in Narrative Composition Made by the Eleventh Grade of SMK Tunas Karya Pekanbaru
Authors: Ihsan Muhammad Taufik
Published: March 2022

The purpose of this research is to analyze the eleventh grade students’ error in using preposition in writing narrative text at SMK Tunas Karya Pekanbaru. This study was a descriptive research, the subject of this research was the eleventh grade students’ of SMK Tunas Karya Pekanbaru while the object of this research was students’ error in using preposition in writing narrative text. The researcher used purposive sampling technique to take the sample, there were 35 students as sample from 96 students. To collect the data the researcher used test. The test was conducted to know what types of errors were made by the students when they used preposition in writing narrative text. The result of the error analysis process showed that students committee error into three types: omission, insertion and selection. From the calculation of the data, error of insertion is the most frequent errors that done by the eleventh grade students of SMK Tunas Karya Pekanbaru with the percentage 41.9%. Moreover it is followed by error of omission with percentage 30.9%, and error of selection with percentage 27.1%.
The Effect of Using Guided Questions Technique on Students’ Ability in Writing Personal Letter at MAN 2 Kuantan Singingi
Authors: Rahma Masitha
Published: March 2022

The objectives of this research were to know the average score of students’ ability in writing personal letter before and after being taught by using Guided Questions Technique and to examine whether there is significant effect of Guided Questions Technique on students’ ability in writing personal letter. This research was a pre-experimental design in the form of one group pre-test and post-test design on quantitative approach. The population of the research was the students of the eleventh grade at MAN 2 Kuantan Singingi consisting of 4 classes (XI IPA 1, XI IPA 2, XI IPS 1, and XI IPS 2). By having cluster sampling, it has been selected 20 students from XI IPS 1 out of 105 students on population. To collect the data, the researcher used writing test to know the students’ ability in writing personal letter. The data were analyzed by non-parametric test since the assumption of normally distributed data was not markedly violated. However, the data were interpreted by using Wilcoxon on the SPSS version 23.0 program. The result of the data analyzed showed that the mean score of the students after being taught by using Guided Questions Technique (82.81) was higher than before being taught by using Guided Questions Technique (68.59). In conclusion, the use Guided Questions Technique shows a significant effect on the students’ ability in writing personal letter at MAN 2 Kuantan Singingi.
Evaluation of the Effects of Nigerian Portland-Limestone Cement Grades on the Strength of Concrete
Authors: Okonkwo V. O. , Omaliko I. K. , Chukwunonso C. U.
Published: March 2022

The influence of Nigerian Portland-Limestone cement grades on the strength of concrete was investigated in this study. Three cement grades of 32.5R, 42.5R and 42.5N were adopted. A constant mix design ratio of 1:2:4 with a varying water-cement ratio of 0.4, 0.5, and 0.6 was used. All of the constituents of concrete were calculated using the mass of a concrete cube specimen of 150mm x 150mm x 150mm. A total of 135 cube specimens were cast and cured for 3, 7, 14, 21 and 28 days accordingly in order to determine the compressive strength of the concrete. The results obtained show that concrete cube specimens produced with Portland-Limestone cement grade 42.5N had the optimum compressive strength on the 28th day of curing in each water-cement ratio. However, the optimum compressive strength on the 7th day of curing in each water-cement ratio was obtained in the concrete cube specimens produced with Portland-Limestone cement grade 42.5R. The results also show that concrete produced from cement grade 32.5 will generally produce more workable but weaker concrete than concrete produced from cement grade 42.5, irrespective of the water-cement ratio. Finally, it was concluded that the compressive strength of concrete is inversely proportional to all the water-cement ratios used in this study, irrespective of the grade of cement.
Pelaksanaan Program Layanan Sosial Dan Keterampilan Pada Anak Penyandang Masalah Kesejateraan Sosial (PMKS) Di Panti Sosial
Authors: Zulianda Windy , Jalius Jalius
Published: March 2022

This research was motivated by the large number of youth with social welfare problems who managed to have the provisions and abilities through social service programs and skills services held by the Panti Sosial Binan Remaja Harapan Kota Padang Panjang, regardless of their slightly problematic social status.This study uses a qualitative approach, with data sources consisting of research subjects, namely the manager of the Harapan Adolescent Social Institution in the City of Padang Panjang, and research informants, namely students at the Panti Sosial Bina Remaja Harapan City of Padang Panjang. This study uses data collection techniques such as interviews, observations, and documentation, using data reduction, data presentation, and drawing conclusions as data analysis techniques, as well as triangulation of sources and methods for data validity techniques.The results of this study indicate that the implementation of the Social Service and Skills Program for Children with Social Welfare Problems (PMKS) at the Panti Sosial Bina Remaja Harapan City of Padang Panjang, namely: the social service program contains entrepreneurship, social and community relations, ethics and behavior change, religious guidance, women's jurisprudence guidance, psychological guidance, art guidance, sports and others. Meanwhile, the skills service program includes sewing and embroidery skills. Overall, the implementation in the field went smoothly, and was in accordance with the expectations of the Padang Panjang City Community Development Center for Youth Hope. The results of the program are also in accordance with what has become the target of the program itself, such as students who have the courage to socialize with local residents by showing good ethics, have been able to produce clothes for everyday use, and some have started to open businesses. sew yourself and even sell the stitches
Experimentelle Untersuchungen zum Einlaufverhalten bleifreier Sondermessinglegierungen
Authors: Holzer Achill , Reetz Björn , Münch Tileman , Schmitz Katharina
Published: March 2022

n tribological systems with high loads, leaded special brasses are preferably used because of their excellent wear properties. Axial piston pumps and motors are a good example of such systems. In order to be able to dispense with lead-containing materials in the future, alternative materials are being tested. The result of this development are three new lead-free special brass materials presented in this article. For these, the effect Abstract of surface roughness (fine/coarse) and the manufacturing process (fine grinding + vibratory grinding/ lapping + vibratory grinding) on the running-in behavior was investigated. The specifications for this are based on experience with the lead-containing reference material CuZn40Al2Mn2Si.
Thermo-oxidative grease service life evaluation – laboratory study with the catalytically accelerated method using the RapidOxy
Authors: Matzke Markus , Beyer-Faiß Susanne , Grebe Markus , Höger Olav
Published: March 2022

With increasing product lifetime requirements including reduced failure rates and higher loads greases are challenged and appropriate methods for grease service life estimation are necessary. Thermo-oxidation is one dominant degradation mechanism in many automotive applications at elevated operating temperatures. At 60th German Tribology Conference 2019, the Bosch method for quantitatively accelerated testing of thermo-oxidative stability of greases with the RapidOxy test apparatus was presented. This method differs from ASTM D8206 and DIN 51830-1 because it measures the grease in contact with the oxidation catalysts steel or brass and it is additionally used to calculate the Arrhenius activation energy of the grease. The oxidation induction time which is indicated by a significant decrease of the autoclave pressure gradient is applied as criterion for grease service life. The method was introduced to the DIN working group “grease ageing” and a laboratory study with participation of seven member laboratories was carried out. The objective of this study was to evaluate repeatability and reproducibility of this method and to verify the application of Arrhenius law for this mechanism. The study was carried out with a commercially available lubricating grease of NLGI-class 2 which consists of a lithium 12-hydroxystearate thickener, mineral oil and an additive package. The grease was spread in thin layers on either steel or brass plates and the activation energy was measured at 130 °C, 145 °C and 160 °C. The oxidation induction times at different temperatures were used to derive the activation energies of the Arrhenius equation on both plate materials. The applicability of Arrhenius law was verified by R2-values above 0,998 for a linear regression in the Arrhenius plot. Results indicated remarkably low scattering of values. The values of activation energies of this specific grease were in the range of 126 - 134 kJ/mol on steel and 99 - 113 kJ/mol on brass. The pressure curve as evaluation criterion was correlated with visual inspection and rheological flow curves. Based on the results of this collaborative study and on internal experiences at Bosch, this method was proposed to DIN in 2020 for definition as a new industry standard. The draft “mDIN 51830-2 Testing of greases – Determination of oxidation resistance of greases – Part 2: Determination of the Arrhenius activation energy of thermo-oxidative degradation” is currently in review of the DIN working group and an official round robin test with several greases and more laboratories is currently in preparation.
Impact of Starting Outlier Removal on Accuracy of Time Series Forecasting
Authors: Romanuke Vadim
Published: March 2022

The presence of an outlier at the starting point of a univariate time series negatively influences the forecasting accuracy. The starting outlier is effectively removed only by making it equal to the second time point value. The forecasting accuracy is significantly improved after the removal. The favorable impact of the starting outlier removal on the time series forecasting accuracy is strong. It is the least favorable for time series with exponential rising. In the worst case of a time series, on average only 7 % to 11 % forecasts after the starting outlier removal are worse than they would be without the removal.
Pengembangan Skala Human Capital Skills Komunitas Pemuda Gereja di Jakarta
Authors: Selviana Maria
Published: March 2022

Setiap orang memiliki kemampuan tertentu untuk mencapai potensi maksimal dalam hidupnya. Kemampuan individu yang diteliti saat ini adalah human capital skills yang merupakan proses pembebasan manusia, dimana manusia memiliki kesempatan untuk mengaktualisasikan diri secara optimal yang dalam penelitian ini dibuat khusus sebagai alat ukur bagi pemuda gereja. Responden penelitian berjumlah 200 orang yang terdiri dari 46% laki-laki dan 54% perempuan. Berdasarkan hasil tes psikometri yang dilakukan melalui uji konsistensi internal dan validitas konstruk, skala human capital skills memiliki validitas dan reliabilitas yang baik. Skala ini dapat mengukur konstruk yang satu dan sama secara konsisten dan valid untuk mengukur konstruk human capital skills melalui tiga aspek, yaitu self management skills, self motivation skills, dan self technical skills. Dengan hasil tes psikometri yang cukup baik, maka skala human capital skills untuk pemuda gereja ini dapat digunakan untuk mengukur human capital skills
Perbandingan Teori 4 Dimensi Keagamaan (4BDRS) dan Teori Tahapan Iman Fowler untuk Riset Psikologi Agama di Indonesia
Authors: Lindawati Lindawati , Martoyo Ihan
Published: March 2022

Banyak usaha penelitian psikologi agama di Indonesia sudah dilakukan, namun sedikit studi yang berlandaskan suatu teori yang cukup teruji. Riset dalam bidang psikologi agama sering juga bertambah sulit dengan adanya sikap yang memusuhi bidang psikologi atau agama. Dalam review singkat ini, dua teori yang berkembang dalam penelitian internasional dan memperoleh cukup banyak perhatian dalam penelitian psikologi agama di Indonesia akan diperbandingkan. Teori 4 Dimensi Keagamaan (Saroglou) menyediakan pendekatan multidimensi terhadap keagamaan, yang melibatkan aspek: (1) Kognitif (Kepercayaan), (2) Afektif (Ikatan emosional), (3) Perilaku (Tindakan), dan (4) Komunitas (Kebersamaan). Di sisi lain, Teori Tahapan Iman dari James Fowler memberikan kerangka untuk mendiskusikan struktur jiwa yang menjadi wadah manifestasi iman pada tahapan perkembangan jiwa tertentu yang terlepas dari konten iman yang spesifik.
Keterbatasan Pangan Balita Perkotaan dan Pedesaan Provinsi Papua Indonesia pada Masa Pandemi COVID-19
Authors: Irab Semuel Piter , Tingginehe Rosmin , Ruru Yacob
Published: March 2022

Corona Virus disease – (COVID-19) adalah penyakit infeksi yang ditemukan bulan desember 2019  di Kota Wuhan, China. COVID-19 merupakan golongan virus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Akibat  gangguan sistem pernapasan,  gejala ringan, flu, infeksi paru-paru, dan menyerupai  penyakit pneumonia. Tujuan penelitian ini untuk menganalisis dampak social distancing dan lockdown pada  keterbatasan  pangan balita  perkotaan dan pedesaan. Metode Cross-sectional digunakan pada analisis keterbatasan pangan  balita perkotaan  dan  pedesaan  masa pandemi COVID-19 Provinsi Papua yang dilakukan Maret – Juli 2020. Tempat penelitian di Kabupaten/kota Jayapura dan Kabupaten Jayawijaya, mewakili semua Kabupaten di Provinsi Papua. Populasi seluruh balita, sampel balita di perkotaan dan pedesaan. Analisis data mengunakan independent samples t-test. Hasil penelitian menunjukkan bahwa ada perbedaan pandemi COVID-19 perkotaan dan pedesaan (p-value = 0,012), transportasi bahan makanan perkotaan dan pedesaan (p-value < 0,001), pekerjaan kepala keluarga perkotaan dan pedesaan (p-value = 0,002), pendapatan kepala keluarga perkotaan dan pedesaan (p-value = 0,004), sumber vitamin  mineral perkotaan dan pedesaan ( p-value < 0,001),  sumber protein (10 – 15%) perkotaan dan pedesaan (p-value < 0,001), sumber karbohidrat (60-75%) perkotaan dan pedesaan (p-value = 0,028), sumber lemak (10-20%) perkotaan dan pedesaan (p-value = 0,019), sumber energi (1250-1750 kkal) perkotaan dan pedesaan (p-value < 0,001). Tidak ada perbedaan bantuan Pemerintah perkotaan dan pedesaan pada pandemi COVID-19 Provinsi Papua (p-value = 0,564). Dapat disimpulan  bahwa pembatasan status sosial ekonomi pada masa pandemic COVID-19, berdampak pada keterbatasan pangan balita perkotaan dan pedesaan Provinsi Papua. Balita perkotaan dan perdesaan mengkonsumsi makanan jumlah dan sumber zat gizi berbeda.
Formulasi Masker Gel Peel Off dari Kulit Pisang Ambon (Musa Paradisiaca Var)
Authors: Wahyuni Dwi Fitrah , Mustary Mardiah , Syafruddin Syafruddin , Deviyanti Deviyanti
Published: March 2022

Peel off face mask is one type of face mask that has advantages in its use, namely that it can be easily removed or lifted like an elastic membrane. The purpose of this study was to determine the formulation of a peel off gel mask preparation made from Ambon banana peel (Musa paradisiaca var). The gel mask formulation was made on the basis of Polyvinyl Alcohol (PVA) with a concentration of 7%. The active ingredient used is Ambon banana peel which contains vitamin B6, carbohydrates, phosphorus, protein, vitamin C, and several other substances that are useful for body health and beauty as well as other ingredients such as flavonoids, tannins, and saponins. This study used experimental methods to determine the best proportion of masks from Ambon banana peels which included organoleptic tests, homogeneity, drying time, pH and dispersion. The results of the observations were organoleptic test with a characteristic brown odor and semi-solid form, homogeneity test from day 1/14 for all homogeneity formulas, pH test from day 1/14 all formulas had a good pH because they were still in range 4.5-6.5 which is 5, the dry preparation test on the 1st/14th day formula 1, 2 has good drying power because it is still in the drying time requirement of 15-30 minutes while formula 3 has a high drying power. less good than the 1st/14th day because it exceeded the drying time of the preparation, and the dispersion test on day 1 of formulas 1 and 2 met the requirements while formula 3 did not meet the requirements while on day 14 all formulas met the requirements From the results of the research that has been done, it can be concluded that the Ambon banana peel can be formulated into a peel off gel mask preparation.
Evaluación de Novaluron 0,2G como regulador de crecimiento de Aedes (Stegomyia) aegypti (Diptera: Culicidae) en una zona urbana de Antioquia, Colombia
Authors: Quimbayo F. Marcela , Amaya Juan D. , Rúa-Uribe Guillermo L.
Published: March 2022

Dengue, zika y chikungunya son arbovirosis de importancia a nivel mundial. Ante la ausencia de una vacuna, las entidades de salud se concentran principalmente en disminuir el vector usando insecticidas, los Insecticidas Reguladores de Crecimiento (IRC), entre ellos Novaluron, han demostrado ser eficaces en el control vectorial. El objetivo fue determinar la dosis de aplicación óptima de Novaluron 0,2G sobre la emergencia de Aedes aegypti en zona urbana endémica para dengue, Carepa, en el departamento de Antioquia, Colombia. Se seleccionaron 21 viviendas de forma aleatoria, en donde se ubicaron tres tanques de 250 L, dos correspondieron a tratamientos y uno a control, evaluándose tres concentraciones (tratamientos), seleccionados al azar para cada vivienda. El estudio se realizó durante 18 semanas: siete semanas de pre-tratamiento, una semana de aplicación del producto y diez de post-tratamiento. Para ello se colectaron las pupas de A. aegypti permitiendo la emergencia del mosquito adulto en condiciones controladas para de estimar la inhibición semanal de la emergencia. Los resultados indicaron que se logró una reducción en la emergencia de A. aegypti cercana al 100%, con la mayor concentración evaluada (0,584mg/L). Para las demás concentraciones (0,292 y 0,146mg/L), el porcentaje de inhibición de la emergencia para la semana dos fue 79% y 45%, respectivamente.
MECHANICAL PROPERTIES DEGRADATION MODELING OF AUSTENITIC CHROMIUM-NICKEL AISI 304 STEEL AFTER THERMAL AGEING
Authors:   FSUE Central Research Institute of Structural Materials ", Margolin B. Z. ,   Prometey",   named by I.V. Gorynin of the National Research Center ",   Kurchatov Institute",   , St Petersburg, Russia, Petrov S. N. ,   FSUE Central Research Institute of Structural Materials "Prometey" named by I.V. Gorynin of the National Research Center "Kurchatov Institute", St Petersburg, Russia, Prokoshev O. Yu. ,   FSUE Central Research Institute of Structural Materials "Prometey" named by I.V. Gorynin of the National Research Center "Kurchatov Institute", St Petersburg, Russia, Kondrateva A. M. ,   FSUE Central Research Institute of Structural Materials "Prometey" named by I.V. Gorynin of the National Research Center "Kurchatov Institute", St Petersburg, Russia
Published: March 2022

Аустенитная хромоникелевая сталь 10Х18Н9 используется в качестве материала для конструкций теплообменного оборудования. В результате длительной эксплуатации происходит деградация механических свойств материала за счет образования карбидов хрома на границах зерен. Исследовано влияние различных режимов теплового старения стали 10Х18Н9 на механические свойства на примере металла фрагментов реакторной установки на быстрых нейтронах РУ БН-600 после длительной эксплуатации.
PYTHON AS AN AUTOMATION TOOL IN INFORMATION SECURITY. MONITORING THE RELEVANCE OF PROTECTION AGAINST MALICIOUS CODE
Authors:   Novosibirsk State Technical University, Novosibirsk, Russia, Dronov V. Y. , Dronova G. A. ,   Novosibirsk State Technical University, Novosibirsk, Russia
Published: March 2022

Одной из необходимых, периодически выполняемых подразделением информационной безопасности (ИБ) процедур является оценка уровня соответствия реального состояния какой-либо меры обеспечения ИБ установленным требованиям. Данные процедуры включают значительный объем ручной работы, приводящий к затратам времени, человеческих, технологически ресурсов. При этом не всегда возможно обеспечить высокий уровень достоверности результатов. Сократить затраты, повысить степень достоверности и точности результатов оценки состояния ИБ, и, соответственно, повысить уровень доверия к оценке состояния ИБ, можно путем применения средств «малой автоматизации» при выполнении рутинных операций сбора, корреляции, нормализации, анализа массивов данных. Наиболее приемлемым средством автоматизации является язык программирования python, который, помимо удобства применения, мощного функционала, обладает обширным аналитическим аппаратом. В данной статье рассматривается вопрос применения python в качестве инструмента «малой автоматизации» для контроля актуальности системы антивирусной защиты.
KINEMATIC MODEL OF THE PARALLEL CONVERGENCE METHOD IN SPACE
Authors:   Buryat State University, Ulan-Ude, Russia, Dubanov A. A.
Published: March 2022

В предлагаемой вниманию статье рассматривается и обсуждается реализация в системе компьютерной математики метода параллельного сближения в пространстве. В данном методе вектор скорости преследователя направлен произвольно. Траектория преследователя постепенно приближается к движению в плоскости, образованной линией, соединяющей начальные положения преследователя и цели, и вектором скорости. В данной задаче цель движется равномерно и прямолинейно. Движение преследователя является равномерным. Точки траектории преследователя рассчитываются последовательно, являясь результатом пересечения плоскости, содержащей линию визирования, сферы и конуса. По мере приближения к плоскости движения цели алгоритм вычисления точек траектории изменяется. Теперь точка траектории преследователя является результатом пересечения сферы, плоскости движения цели и плоскости, содержащую линию визирования.
ANÁLISE DISCURSIVA DA FIGURA DA BEATA LINDALVA: UM OLHAR A PARTIR DO ETHOS
Authors: Santos Ivanaldo Oliveira , Souza Gustavo Natanael Arlindo
Published: March 2022

Este trabalho se propõe analisar, com base na perspectiva teórica da Análise do Discurso de orientação francesa, a figura da Beata Lindalva, por meio da categoria do ethos discursivo. Como embasamento teórico, nos baseamos nos estudos de Maingueneau (1979, 2000, 2008, 2011, 2015, 2016) e em Amossy (2016). O corpus de análise é o livro: O Sorriso de Lindalva, de Gaetano Passarelli. É levado em consideração a dedução interpretativa desse ethos de como ele se emerge na figura da Beata Lindalva. Conforme a análise desenvolvida, notamos a importância desse ethos carismático, cristão, vicentino para importância de uma figura tão prestativa e humilde com seu próximo e da cristandade. OLHAR A PARTIR DO ETHOS DISCUSSION ANALYSIS OF BEATA LINDALVA FIGURE: A LOOK FROM ETHOSAbstractThis work intends to analyze, based on the theoretical perspective of Discourse Analysis of French orientation, the figure of Blessed Lindalva, through the category of the discursive ethos. As a theoretical basis, we are based on the studies of Maingueneau (1979, 2000, 2008, 2011, 2015, 2016) and Amossy (2016). The corpus of analysis is the book: The Smile of Lindalva, by Gaetano Passarelli. The interpretative deduction of this ethos of how it emerges in the figure of Blessed Lindalva is taken into account. According to the analysis developed, we note the importance of this charismatic, Christian, Vincentian ethos for the importance of a figure so helpful and humble with his neighbor and Christendom.
O HOMO RELIGIOSUS SEGUNDO VIKTOR FRANKL: APONTAMENTOS PARA UMA FILOSOFIA DA RELIGIÃO
Authors: Avellar de Aquino Thiago Antonio
Published: March 2022

A busca do sentido último da vida se constitui um fenômeno especificamente humano do homo religiosus. Nesta direção, Viktor Frankl analisou e descreveu essa busca em termos fenomenológicos. Assim, o presente artigo teve por objetivo identificar o pensamento filosófico de Viktor Frankl acerca da busca do sentido último da existência. Com o intuito de apreender o seu pensamento em uma ótica da Filosofia da Religião, analisou-se quatro eixos: (1) a existência e a natureza de Deus; (2) a justificativa das crenças, a experiência religiosa, a mística e os milagres; (3) o problema do mal e do livre arbítrio; e (4) as estruturas religiosas cognitivas, morais e rituais. Além da pertinência do pensamento de Viktor Frankl na perspectiva da Filosofia da Religião, concluiu-se que a chave de compreensão que lhe abre a porta, no pensamento de Viktor Frankl, é o ser humano em sua busca por um Tu transcendente.
Expression of Estrogen Receptor Alpha (ESR1) in Breast Cancer: Role in Critical Diagnosis
Authors: Nayak B.B. , Achary K.G. , Singh S.
Published: March 2022

Estrogen receptors (ERs) are a group of receptor proteins that are activated by the hormone estrogen. Once activated by estrogen, the ER can translocate into the nucleus and bind with DNA to regulate the activity of different genes. About 80% of all breast cancers are "ER-positive" which is one of the two types of hormonereceptor- positive breast cancer. Tumors that are ERpositive are much more likely to respond to hormone therapy than tumors that are ER/PR (estrogen/progesterone) negative. The presence of ER in breast tumors indicates an increased likelihood of response to anti-estrogen therapy. In the present study, we have developed and characterized a monoclonal antibody against Estrogen receptors. The level of expression of ER is examined in human breast cancer tissues by using the developed anti-ER monoclonal antibody in immunohistochemistry. It was found that this monoclonal antibody is specific to estrogen receptors and shows minimal cross-reaction with other members of the family which were validated by ELISA, Western blotting and Immuno-histochemistry. It strongly strains nuclei of epithelial cells in breast carcinomas and so the developed monoclonal antibody can be used in the diagnosis of positive breast cancer.
Apoptosis inducing potential of Cyclosporine C in human lung cancer cells (A549)
Authors: Pravallika Sagi , Tharani L.R. , Rupachandra S. , Selvam Mario Prateek
Published: March 2022

Cyclotides are a large group of plant based cyclic peptides that have attracted attention in the field of peptide drug design. Cyclic peptides exhibit a more potent biological activity when compared to linear peptides due to their stable cyclic structure. Cyclosporine C is a naturally occurring lipophilic cyclic peptide which is used as an immunosuppressant drug. The objective of this study was to establish Cyclosporine C as a viable novel anticancer drug in the treatment of lung cancer and to find the optimal concentration at which Cyclosporine C results in a significant decrease of viable cancer cells to determine the physiological changes caused by Cyclosporine C and also to find the pathway of apoptosis that is induced by Cyclosporine C. The cytotoxic effect of Cyclosporine C was assessed using techniques such as MTT, Hoechst staining, DNA fragmentation, Flowcytometry and Western blot which were carried out on Lung adenocarcinoma cell line A549. The results obtained showed a significant decrease in A549 viable cells at a concentration of 200μg/mL of Cyclosporine C as observed by the MTT assay. The nuclear condensation and DNA fragmentation of apoptotic cells were observed using Hoechst 33258 staining and DNA fragmentation assays respectively. Western blot confirms that Cyclosporine C treated cells expressed a significant level of caspase-9 enzyme. From the results obtained, we can conclude that Cyclosporine C induces apoptosis in Lung adenocarcinoma cell line A549. The apoptosis is induced by caspace-9 enzyme dependent pathway. The antitumor activity of Cyclosporine C suggests that it has potential as a novel anticancer drug for human lung cancer treatment.
Selection of suitable reference gene for gene expression studies during groundnut seed germination
Authors: Chaudhari H.A. , Antala V.G. , Radadiya N.G. , Mahatma M.K. , Tomar R.S.
Published: March 2022

Understanding the mechanism of seed germination requires a sturdy selection of reference genes for expression analysis using qRT-PCR. The accurate normalization of genes becomes necessary to circumvent erroneous result, as housekeeping genes does not remain stable over the different experimental condition in various tissue or species. Reliable and stable reference gene during ethrel induced germination of groundnut seeds is not reported yet. In this study, seven candidate reference genes were selected based on previous reports in groundnut under different experimental conditions. Seeds of NRCG 14380 (dormant) and TAG 24 (non-dormant) genotypes were treated with ethrel and sampled at 0, 6, 12 and 24 hours after incubation. The stability of reference genes such as actin1 (ACT1), actin11 (ACT11), alcohol dehydrogenase (ADH3), glyceraldehyde-3-phosphate dehydrogenase (GAPDH), glucose-6-phosphate dehydrogenase (G6PD), ubiquitin C (UBC) and α-Tubulin (TUA) was analyzed through a different statistical algorithm such as BestKeeper, NormFinder, geNorm and its consensus stability ranking was retrieved using RefFinder. Among all reference genes studied, ACT1 was found most stable reference gene in our study. Stability and reliability of ACT1 and ADH3 (most stable) reference genes were further validated through qRT- PCR with relative quantification of two germination related genes ACC oxidase1 (ACO1) and gibberellic acid regulated protein which showed consistency in their expression level. Our result revealed a stable reference gene that could be used as an internal control gene for gene expression study of ethrel treated groundnut seed germination.
Synthesis and characterization of heterobinuclear copper(II) complexes derived from Schiff base with organosilver(I)
Authors: Prakash Sachin , Gupta Anju K. , Prakash Shivani , Singh K.R.R.P. , Prakash D.
Published: March 2022

Copper(II) ion can form complexes with varied ligands. The present study describes the synthesis of a series of new hetero binuclear Schiff base complexes of copper(II) and organic chelates of silver(I). The Schiff base ligand was derived from salicylaldehyde and ophenylenediamine. For the characterization of the hetero binuclear complexes, various physicoanalytical and spectral studies viz. elemental analysis, magnetic moment measurements, molar conductance, FTIR and electronic spectral recordings were applied. Evidences from these analyses reveal square geometry for the complexes.
Chemical constituents and biological activities of Curcuma caesia
Authors: Arora Charu , Tamrakar Vinita , Arora Dhruv
Published: March 2022

The rhizomes of Curcuma caesia Roxb. (Family zingiberacea) are traditionally used to treat various ailments like piles, leprosy, asthma, cancer, wounds, impotency, fertility, toothache, vomiting leukoderma, tumours, bronchitis, etc. in Indian system of medicine. Rhizomes of C. caesia have been used as various ethnic herbal medicines by tribals. Several phytoconstituents have also been isolated and characterized. However, studies on correlation of phytoconstituents and medicinal properties are limited. The present study is an endeavor to do comprehensive review for the ethno-medicinal uses, pharmacology and phytochemistry of C. caesia. Pharmacological studies revealed the potent in vitro and in vivo bioactivities of various parts of C. caesia and other biological activities. Several phytoconstituents have been identified and isolated from C. caesia. Conclusions have been drawn from the literature reviewed and suggestions for future research are proposed. These findings may be utilized in the development of cost effective, safe and efficient novel drugs useful for treatment of cancer, piles, leprosy, asthma, wounds, impotency, fertility, toothache, vomiting, allergies and leukoderma.
Localized Quantum Chemistry on Quantum Computers
Authors: Otten Matthew , Hermes Matthew , Pandharkar Riddhish , Alexeev Yuri , Gray Stephen , Gagliardi Laura
Published: March 2022

Quantum chemistry calculations of large, strongly correlated systems are typically limited by the computation cost that scales exponentially with the size of the system. Quantum algorithms, designed specifically for quantum computers, can alleviate this, but the resources required are still too large for today’s quantum devices. Here we present a quantum algorithm that combines a localization of multireference wave functions of chemical systems with quantum phase estimation (QPE) and variational unitary coupled cluster singles and doubles (UCCSD) to compute their ground state energy. Our algorithm, termed “local active space unitary coupled cluster” (LAS-UCC), scales linearly with system size for certain geometries, providing a polynomial reduction in the total number of gates compared with QPE, while providing accuracy above that of the variational quantum eigensolver using the UCCSD ansatz and also above that of the classical local active space self-consistent field. The accuracy of LAS-UCC is demonstrated by dissociating (H2)2 into two H2 molecules and by breaking the two double bonds in trans-butadiene and resources estimates are provided for linear chains of up to 20 H2 molecules.
Self-assembly-Induced Highly Efficient Electrochemiluminescence of Copper Nanocluster
Authors: Shen Yanfei , Ning Zhenqiang , Sun Qian , Yang Erli , Yin Fei , Chen Mengyuan , Wu Guoqiu , Zhang Yuanjian
Published: March 2022

Metal nanocluster has been recently developed as a promising electrochemiluminescence (ECL) emitters due to its unique electronic structure and distinctive optical and electrochemistry properties. However, the low ECL efficiency and high cost are still the serious challenges for metal nanocluster-based ECL emitter. Herein, the self-assembly of 4,6-dimethyl-2-mercaptopyrimidine (DMPM) stabilized copper CuNCs (DMPM-CuNCs) into nanosheets was described in detail for the first time, which significantly strengthening its photoluminescence efficiency from 4.3% to 39.3% and improving its photostability and oxidation stability. Most importantly, the ECL efficiency of self-assembled DMPM-CuNCs (DMPM-CuNCs) was markedly enhanced to 39%, reaching a relative high level of reported metal nanocluster-based ECL emitters. This work propose a simple and effective way to improving inherent ECL performance of CuNCs, providing a new guidance for further development of low-cost and high efficiency ECL emitters.