bluuebunny/crossref_metadata_2025_split huggingface dataset:
Randomized Trials of Retosiban Versus Placebo or Atosiban in Spontaneous Preterm Labor
Authors: Saade George R. , Shennan Andrew , Beach Kathleen J. , Hadar Eran , Parilla Barbara V. , Snidow Jerry , Powell Marcy , Montague Timothy H. , Liu Feng , Komatsu Yosuke , McKain Laura , Thornton Steven 
Published: May 2020

Abstract
Objective The aim of this study is to assess the efficacy and safety of retosiban in spontaneous preterm labor (sPTL).
Study Design Two multicenter, randomized, and double-blind trials compared retosiban with placebo and retosiban with atosiban in women with a singleton pregnancy and intact membranes in sPTL at 24 to 336/7 weeks' gestation. Coprimary endpoints in the placebo-controlled trial were time to delivery (TTD) or treatment failure (whichever occurred first) and neonatal composite morbidity and mortality. The primary endpoint of the atosiban comparator trial was TTD.
Results The trials were terminated early because of slow recruitment. The placebo-controlled trial enrolled 23 participants (February 2016–July 2017; 2.6% of target);the atosiban-comparator trial enrolled 97 (March 2015–August 2017; 29% of target). Baseline participant characteristics were similar between treatments. In the placebo-controlled trial, mean gestational ages at randomization were 30.8 (retosiban, n = 10) and 30.5 weeks (placebo, n = 13), and mean times to delivery/treatment failure were 18.9 days (retosiban) and 11.1 days (placebo). Two and four neonates in the retosiban and placebo groups, respectively, had ≥1 component of the neonatal composite endpoint. In the atosiban-comparator trial, mean gestational age at randomization was 31.5 weeks (for both retosiban, n = 47, and atosiban, n = 50), and adjusted mean TTDs were 32.51 days (retosiban) and 33.71 days (atosiban; p > 0.05). Adverse events were no more common with retosiban than placebo or atosiban.
Conclusion Despite considerable efforts to conduct two adequate and well-controlled studies in patients with sPTL, both studies were unable to recruit effectively and consequently terminated prematurely. Key factors negatively affecting participation were patient and physician resistance to use of a placebo comparator, lack of investigator consensus on diagnostic criteria and acceptance of protocol procedures, and ethics committee decisions. Meaningful cooperation between pharmaceutical companies, regulatory authorities, and the obstetric community is essential for future development of drugs to treat sPTL.
Caring for Pregnant Patients with COVID-19: Practical Tips Getting from Policy to Practice
Authors: London Viktoriya , McLaren Rodney , Stein Janet , Atallah Fouad , Fisher Nelli , Haberman Shoshana , McCalla Sandra , Minkoff Howard 
Published: May 2020

Novel coronavirus disease 2019 (COVID-19) is a pandemic with most American cases in New York. As an institution residing in a high-prevalence zip code, with over 8,000 births annually, we have cared for over 80 COVID-19-infected pregnant women, and have encountered many challenges in applying new national standards for care. In this article, we review how to change outpatient and inpatient practices, develop, and disseminate new hospital protocols, and we highlight the psychosocial challenges for pregnant patients and their providers.
Key Points
The agreement of existentialhaberin three varieties of spoken Spanish
Authors: Gómez Devís M.ª Begoña , Gómez Molina José Ramón 
Published: May 2020

AbstractThis paper aims to present one of the most relevant linguistic phenomena of spoken Spanish on both sides of the Atlantic. The singular/plural forms of the verbhaberwith existential meaning have received considerable attention due to the fact that it is a linguistic variable that changes according to the variety of Spanish that is used. We report the findings from the research carried out within three speech communities: Valencia, Las Palmas and Mexico City, analysing the internal and external factors that may explain this linguistic variation. For this study we have selected these communities because all the data have been obtained according to the guidelines proposed in the PRESEEA (Project for the Sociolinguistic Study of Spanish from Spain and from America). The results are the product of rigorous statistical analysis and allow us to illustrate the processes of convergence or divergence.
Conceptual design progress of advanced fusion neutron source
Authors: Ochiai K. , Sato S. , Kondo H. , Ohta M. , Oyaidzu M. , Nakamura M.M. , Kwon S. , Tanigawa H. , Nozawa T. , Kasugai A. , Sakamoto K. , Ishida S. 
Published: May 2020

Abstract
Based on the results of the IFMIF/EVEDA project in the broader approach (BA) activities, the conceptual design of the Advanced Fusion Neutron Source (A-FNS) to obtain irradiation data of DEMO blanket materials is under consideration in Japan.
This paper describes the progress of the A-FNS conceptual design, which consists of a 40 MeV, 125 mA deuteron beam, a liquid lithium target system, and a test and post-irradiation test facilities. the main objectives of the A-FNS are the acquisition of RAFM irradiation data up to 2035 and the tritium recovery test on the blanket. In addition, it is expected to be used for various neutron researches.
The technical design activities of the A-FNS are focused on improvement of the lithium target design, review of impurity criteria, remote handling, and irradiation application plan.
Spectral properties of Lampyris Noctiluca firefly from Sumatra
Authors: Ratnawulan  , Pertiwi Endah , Septika Arma Erni , Ahda Yuni 
Published: May 2020

Abstract
One type of creeping firefly (Lampyris noctiluca) has been found in the forest area, West Sumatra, Indonesia. This study reports the spectral properties of these fireflies using a nanofotometer. From the measurement results, the wavelength value at maximum intensity is 580 nm. The decay constant, the number of photons, the quantum yield and the activation energy produced are 0.0092 / sec, 4.95 quanta / sec, 0.283 and 2.1433 eV, respectively.
Design of a simple and low cost electrical property tester for graphene material : a preliminary study
Authors: Hidayat Rahmat , Oktasendra Fandi 
Published: May 2020

AbstractA simple and low cost electrical property tester for material has been designed and built using cheap components. This instrument consists of simple adjustable current source circuit using LM317, gold coated pin probe and multimeters. The circuit arranged has produced sufficient current to do an electrical property measurement. Value of current could be adjusted to select suitable current in measurement. Resistance vs current graph shows a reciprocal function that generated by a constant voltage of 1.25 volts in output pin. An experiment to examine sheet resistance of ITO glass was carried out to make sure the instrument work properly.
Scanning electron microscope (SEM) imaging and analysis of magnetic minerals of lake Diatas peatland section DD REP B 693
Authors: Aisyah Nur , Rifai Hamdi , Maisonneuve Caroline Bouvet De La , Oalmann Jeffrey , Forni Francesca , Eisele Steffen , Phua Marcus , Putra Rizaldi 
Published: May 2020

Abstract
Peatlands are formed from the accumulation of organic matter that originate from weathering vegetation for a long time. Minerals within peatlands can come from volcanic ash and consist of several types of minerals, one of which is magnetic minerals. This research aims to look the morphology, elemental composition and type of magnetic minerals found in the Lake Diatas peatland in Solok Regency, Indonesia because magnetic minerals have different morphologies depending on the source. The selected samples were from core DD REP B 693, which had a high magnetic susceptibility value. The magnetic minerals in the peatland were imaged and identified using Scanning Electron Microscope (SEM), which was equipped with Energy Dispersive Spectrometer (EDS). The results of morphological analysis showed that peatland had oval-shaped minerals with fractures and are multidomainal. The Back Scattered Electron (BSE) images show that the minerals have a bright colored surface that indicates the presence of a high amount of Fe. The EDS results showed that magnetic minerals from the peatland predominately contain the elements Fe, Ti, Si, and O. Based on the relative proportions of these elements, the magnetic minerals that can be formed in peatland are Magnetite (Fe304) and Ilminite (FeTiO3)
Using the Schlumberger configuration resistivity geoelectric method to estimate the rock structure at landslide zone in Malalak agam
Authors: Permana R S , Buana A P , Akmam A , Amir H , Putra A 
Published: May 2020

Abstract
Landslides that often occur in the Malalak sub-district are very detrimental to the community. Landslides in the Malalak sub-district have caused casualties and the closure of the Malalak road segment. According to studies that have been carried out factors that influence the occurrence of landslides are slope, skid field, rock structure and external factors such as rain and earthquake intensity. Rock structures of landslide-prone areas are urgently needed which will be used as reference data to predict potential landslides. This research aimed to estimate the structure of the rock as a reference or supporting data to determine the potential for landslides in the Malalak. The method used in this study is the Schlumberger configuration Resistivity Geoelectric Method. Based on the estimated structure of the rocks in the Malalak region, the rock types in the area consist of Clay, Sandstone, Limestone, Andesite, and Granite.
Analysis of the mentawai region fault field based on earthquake relocation data using the modified joint hypocenter determination (MJHD) method
Authors: Guci M , Syafriani S , Putri Y T 
Published: May 2020

Abstract
Tectonic conditions in an area are very important to know, one of them is the Mentawai region. Mentawai is an area prone to earthquake disasters, this is because the Mentawai is located between the subduction zone between the Eurasian Plate and the Indo-Australian Plate. One of the earthquake parameters that is needed in analyzing tectonic conditions is the hypocenter. Accurate hypocenter determination can be done by relocating earthquakes using the Modified Joint Hypocenter Determination (MJHD) method. The MJHD method is carried out by inversion of the main earthquake and aftershocks with correction of the station at the earthquake event. The earthquake data in this study began on September 1, 2017, until December 31, 2018, with 1 main earthquake and 104 aftershocks in the format of arrival time. The main earthquake before the relocation is at longitude coordinates 99.85o latitude -2.6o with a depth of 12 km. After being relocated it is at coordinates 99.5413o latitude 2.5779o with a depth of 29 km. The results after the relocation were identified were fault fields occurring in the B-B cross-section ‘nodal plane 2 with a strike of 141o 66o slip 92o. Earthquake relocation using the Modified Joint Hypocenter Determination (MJHD) shows a change in the Root Mean Square (RMS) value <1. This suggests that the earthquake hypocenter after relocation using the Modified Joint Hypocenter Determination (MJHD) method is more accurate.
Design of rotary photoreactor using nano Cu/TiO2 for degradation humic acid in outdoor visible light
Authors: Zilla R , Purnamasari D , Zainul R 
Published: May 2020

Abstract
Doping agents that can increase the activity of TiO2 photocatalys, namely copper (II) or Cu2+ ions because copper is one of the abundant transition metal elements on earth and has Cu2+ (0,68 Å) ion radius which is close to the radius Ti4+ that is (0,74 Å) so that it can be incorporated in TiO2 crystals. Coping is done using the sol-gel method. The Cu concentration used for drying was 5% and calcined at 4000C. the results obtained were then characterized by XRD and obtained by the structure namely anatase, then the crystals were used to degrade humic acid in external light and by using variations in rotation speed and length of time of irradiation. The best reduction in absorbance was found at a rotation speed of 1500 rpm, which was 69,18 % degraded humic acids.
An analysis of development of student’s worksheets with the theme integrated science energy in life by using integrated type of integrated learning in 21stcentury
Authors: Gusti Dian Arima , Ratnawulan  
Published: May 2020

AbstractThe curriculum 2013 (K-13) requires all subjects to contribute to the formation of attitudes, knowledge, and skills. One of the subjects in Junior High School that contributes to this is integrated science. The integrated science phenomenon is generally abstract, so science is a subject that is not easy to learn. Based on this phenomenon, a student worksheets integrated science is needed that can implement and integrate various concepts that have been found as expected in 21st century of learning. The 21st century of learning is learning that integrates literacy skills, knowledge skills, skills and attitudes and mastery of technology. The preliminary study is to conduct a material analysis to determine the needs of students in developing a student worksheets integrated science. Based on the analysis of the preliminary study, it can be concluded that the theme of energy in life using an integrated type of 21st century of learning to stimulate students to apply and integrate various concepts in 21st century of learning
Analysis of physics e-modules based on guided inquiry integrated with Quran knowledge
Authors: Dona Prisma , Syafriani S 
Published: May 2020

Abstract
The era of Industrial Revolution 4.0 is an era where human life is always related to technology, including in the field of education. Every teacher is required to be adept at using information technology in the implementation of learning. One example of the use of technology by teachers is the use of electronic teaching materials. In addition to the use of technology, teachers also associate learning material with the Qur’an. So that students can understand learning not only from physical theory, but also from Islamic studies. Therefore, it is necessary to analyze the teaching materials used by the teacher in conducting learning in school. This research is a descriptive research. The method used is in the form of interviews and questionnaires for physics subject teachers and students. The results of the study show that the teaching materials used are still in the form of printed textbooks that are sold on the market and printed modules prepared by the teacher. The modules compiled by the teacher have not yet used the learning model so that they have not been able to guide students to be able to learn independently from the module. The module also has not linked physics, material with the insights of the Qur’an. So it is necessary to develop a guided inquiry-based physics e-module integrated in the Qur’an
Media analysis in the development of e-module based guidance inquiry integrated with ethnoscience in learning physics at senior high school
Authors: Kurniawan R , Syafriani S 
Published: May 2020

Abstract
Today’s technology is developing very rapidly, marked by many latest sophisticated inventions in various fields, including in the educations sector. The application of technology in the education field is found by electronic-based learning media such as the E-module. However, the existing E-module has been not able to guide a student to find physics concepts and according to the needs and conditions of students. So, it’s necessary to develop a guided inquiry-based e-module integrated ethnoscience that fits with the needs and conditions of students. This research is descriptive qualitative research. The result of media analysis, guided inquiry-based E-module are needed that suitable the needs and conditions of students.
Preliminary analysis of student worksheets development with multi-representation approach on 21st century physics learning
Authors: Septiani T , Yulikifli  , Havid M 
Published: May 2020

Abstract
The practice of learning at schools supposed to be centered on the student, collaborative, contextual, and integrated with student’s lives in the community. Facts that occur in schools, students have not fully the center of the learning process. Physics learning has been associated with real-life but yet can be solving physics problems that vary in daily life. It causes a lack of competence of knowledge, attitudes, and skills of students in learning Physics. Therefore, the student’s worksheet that can help students in the learning process is needed. Student Worksheets with a multi-representation Approach can be used to help students on solving vary physics problems in daily life. The purpose of this study was to find out the preliminary analysis in the development of student worksheets with a multi-representation approach in 11th-grade physics subjects in the first semester. The preliminary analysis carried out in this study was the needs of analysis, student characteristics analysis, learning material analysis, and assignment analysis. Instruments used were questionnaire sheets and interview guideline sheets. The research method used is descriptive qualitative research with research samples who are students of SMA N 15 Padang and SMA N 9 Padang. This research has descriptive data as a result.
Preliminary analysis of learning resources for edupark physics in hydroponic cultivation of SMK N 2 Batusangkar, Indonesia
Authors: Sari A P , Rifai H 
Published: May 2020

Abstract
Environment based learning is a strategy in learning by utilizing the environment as a learning tool, learning resource, learning media that aims to achieve learning goals. One of them is the environment at SMK N 2 Batusangkar which is used as an edupark (educational park) in the form of hydroponic cultivation which has physics concepts that have not been implemented. Based on need for learning resources in learning physics, a preliminary analysis of the physics material at school with the potential of edupark is available. The type of research is a research development using the Plomp model in the initial research phase that aims to analyze the physical concepts which is contained in hydroponic aquaculture edupark. The data used is obtained from interviews and questionnaires that were developed based on learning process parameters, learning tools, student characteristics and environmental characteristics, as well as a description of the potential of edupark, especially those supporting physics subject matter including fluids, temperatures, heat, light intensity, capillarity. Based on the results of preliminary research, it appears that the importance of developing hydroponic aquaculture edupark textbooks in physics learning.
Design of integrated science student book theme adaptation of the human body to change temperature integrated 21st century learning using integrated types
Authors: Supriadi T , Ratnawulan  , Syafriani  , Samra A 
Published: May 2020

Abstract
The implementation of integrated science learning in junior high schools is still not thematic and integrates 21st century learning into the learning process. 21st Century Learning requires students to have literacy skills, knowledge skills, skills and attitudes, and mastery of technology. Increased knowledge, attitudes and skills are caused by the lack of availability of relevant learning resources. One learning resource that can improve 21st-century skills is students’ books. The method used in this study is the model of plomp development which consists of three stages, namely preliminary investigation, Prototyping stage, Assessment phase. The research has reached the Prototyping stage and has been tested for validity. The instrument used in this study is a questionnaire consisting of Aspects of content; Construction Aspect; Language aspects; Integrity aspect.
The effectiveness of guided inquiry student worksheet to improve high order thinking skill in buffer solution material
Authors: Yani Fitra Handa , Mawardi Mawardi , Rusiani Js Aisyah Fitri 
Published: May 2020

Abstract
This study revealed the effectiveness of guided inquiry student worksheets in improving high order thinking skills in buffer solution materials. This study was conducted with a non-equivalent control group design that uses 72 students as samples which are divided into experimental groups and control groups. The instrument used in this study is a high order thinking skills test given to each student before learning as a pre-test and after learning as a post test. Based on the results of the study, the N-gain value in the experimental class is higher than the control class, each of which has a value of 0.85 and 0.74. From the results of the t test using the SPSS statistical application, the significance value is 0,000 at the 95% confidence level and significance level (α = 0.05). Significance value <α so that it was concluded that the use of guided guided worksheet was effective in improving high order thinking skills of students.
Design of edupark Physics book with Project Based Learning based on Ngarai Sianok National Geopark, Indonesia
Authors: Emafri Wenda , Sari Dewi Puspa , Rifai Hamdi , Yohandri  
Published: May 2020

Abstract
Ngarai Sianok is a Nasional Geopark, Indonesia. Utilizing Geopark as learning resources material of physics was named “Edupark”. Ngarai Sianok Physics Edupark is using geopark Ngarai Sianok as physics material for learning. This research aims to develop the the book as learning device in the form of Physics Edupark book using Project Based Learning (PjBL) used Ngarai Sianok National Geopark information at Senior High School Physics Book which are valid. The type of this research is development research. This research used a first prototyping phase Plomp’s model (Self Evaluation. In the prototype phase is conducted the design of learning devices based on PjBL for the second grade of Senior High school. The result of design of the physics edupark book based on Ngarai sianok national geopark at the beginning were called prototype 1.
Validity of development of Physics student’s worksheet based on Inquiry Training Model to improve students creative thinking ability 10th grade Senior High School
Authors: Yuliska Rumi , Syafriani  
Published: May 2020

Abstract
This study aims to determine the validation of inquiry training based physic students worksheet to improve creative thinking ability 10th grade senior high school in Pertiwi 2 Padang city. This research method used research and development. The evaluation of the validity of LKPD is important to determine whether a LKPD has a proper quality. This study sought to evaluate the validity of the LKPD on the aspects of content, Construct, language and Graphical using a valid questionnaire which was developed based on Likert scale. The validity of the LKPD was assessed by three educational experts and practitioners. The data was later analyzed to determine the value of V of Aiken. The V of Aiken value of experts and practitioners on the aspect of content is 0,90, on the aspect of LKPD presentation style is 0,90, on the aspect of language is 0,96, on the aspect of face is 0,95. The value of V showed that the content, presentation style, language and face of the LKPD is categorized as valid. This means the LKPD has satisfied most of its standard quality criteria.