bluuebunny/crossref_metadata_2025_split huggingface dataset:
ИССЛЕДОВАНИЕ ВЛИЯНИЯ ФОРМИАТА НАТРИЯ НА ТЕРМОСТОЙКОСТЬ КРАХМАЛСОДЕРЖАЩЕГО ГЛИНИСТОГО БУРОВОГО РАСТВОРА
Authors: Конесев Геннадий Васильевич , Ахаев Рустам Радикович , Дихтярь Татьяна Дмитриевна , Мамева Оксана Георгиевна , Вязниковцев Сергей Федорович 
Published: August 2020

Актуальность работы обусловлена необходимостью сохранения свойств буровых растворов, содержащих крахмальные реагенты, в условиях высокой минерализации и длительного воздействия повышенных температур. Цель: экспериментально определить температурный интервал и оптимальные концентрации эффективного применения формиата натрия в составе буровых растворов, содержащих крахмальные реагенты. Объекты: крахмалсодержащий глинистый буровой раствор с разными концентрациями натриевых солей (хлорида натрия и формиата натрия). Методы: определение фильтрационных и реологических параметров согласно ГОСТ 33213-2014 (ISO 10414-1:2008) после старения буровых растворов при повышенных температурах с использованием термоячеек; проведение опытов методом построения матрицы центрального композиционного планирования и математической обработки результатов экспериментальных данных. Результаты. Проведен сравнительный анализ свойств глинистых буровых растворов, содержащих крахмальный реагент, с использованием хлорида натрия NaCl и формиата натрия HCOONa, после длительного нахождения системы в условиях высоких температур. Показано, что природа соли оказывает значительное влияние на термостойкость крахмалсодержащего бурового раствора: хлорид натрия не обеспечивает термостабильности раствора; формиат натрия позволяет обеспечить термостойкость крахмалсодержащего бурового раствора до 140–160 °С. Получены уравнения регрессии второго порядка, описывающие зависимость показателя фильтрации и реологических параметров крахмалсодержащего глинистого бурового раствора от температуры и концентрации формиата натрия. Установлено, что термостойкость крахмального реагента при совместном применении с формиатом натрия повышается вследствие высокой растворимости соли, которая подавляет гидратацию полисахарида и, соответственно, замедляет его гидролиз при воздействии высоких температур. Выявлено, что эффективная концентрация натриевой соли муравьиной кислоты как термостабилизатора в составе крахмалсодержащего бурового раствора зависит от температуры применения системы: при низких концентрациях соли термостойкость обеспечивается в диапазоне 100–133 °С за счет хорошей активности крахмала; при высоких концентрациях соли – в диапазоне 133–160 °С – за счет низкого содержания свободной воды в системе вследствие высокой растворимости формиата натрия. Показано, что формиат натрия не предотвращает набухание глин, а наоборот, способен оказывать на них пептизирующее действие.
МИНЕРАЛОГИЯ, ГЕОХИМИЯ И ПРИРОДА СВЕЧЕНИЯ ЛЮМИНЕСЦИРУЮЩИХ ПРОСЛОЕВ БАЖЕНОВСКОЙ СВИТЫ ЗАПАДНО-СИБИРСКОГО ОСАДОЧНОГО БАССЕЙНА
Authors: Кондрашова Елена Сергеевна 
Published: August 2020

Актуальность. Изучение минералого-геохимических особенностей люминесцирующих прослоев, выделенных в отложениях баженовской свиты на территории Западно-Сибирского осадочного бассейна (Томской области и сопредельных регионов), позволит уточнить их минеральный состав и природу образования, а также оценить возможность их использования как дополнительных региональных реперов для восстановления палеогеографической истории формирования свиты. Цель: изучить минералогические и геохимические особенности и определить природу образования люминесцирующих прослоев в отложениях баженовской свиты. Объекты: осадочные породы, люминесцирующие прослои и вмещающие отложения баженовской свиты. Методы: рентгеновская дифрактометрия, петрографический анализ, сканирующая электронная микроскопия, масс-спектрометрия с индуктивно связанной плазмой, атомно-эмиссионная спектрометрия с индуктивно связанной плазмой, инструментальный нейтронно-активационный анализ, рентгенолюминесценция. Результаты. На территории распространения баженовской свиты в центральной и юго-восточной части Западно-Сибирского осадочного бассейна обнаружены люминесцирующие в ультрафиолетовом освещении прослои мощностью от 2 мм до 15 см. Изучение минерального состава позволило разделить выделенные прослои на две группы по основной минеральной фазе. Изучение прослоев I группы показало, что они сложены в основном глинистыми минералами с примесью обломочного алевритового материала. Основными глинистыми минералам в них являются каолинит и смешаннослойные образования ряда иллит–смектит. Ко II группе отнесены прослои с преимущественно кремнистым (кварцевым) составом. При анализе данных химического состава выявлено, что изучаемые прослои имеют пониженные содержания элементов (Co, Ni, Cu, Zn, Mo и др.) по сравнению с «обычными» породами баженовской свиты в связи с низким содержанием захороненного органического вещества, с которым традиционно связывается накопление некоторых элементов. Отмечены повышенные концентрации тория в образцах изучаемых прослоев. Проведенные исследования выявили признаки присутствия вулканогенного материала. Предполагается, что выделенные прослои имеют вулканическое происхождение и образовались в результате диа- и катагенетического преобразования вулканокластического материала туфовых осадков в присутствии большого количества органического вещества.
De unicornios parlantes y losers: influencia del cine de Danny Boyle en la serie “Happy!”
Authors: Bravo Arantxa , Camacho Sara , García Godos Pamela , Leturia Alejandra 
Published: August 2020

El presente texto intenta dilucidar si la serie “Happy!” tiene influencia del cine de Danny Boyle, en particular de las películas “Trainspotting” (Boyle, 1996) y “Slum- dog Millionaire” (Boyle y Tandan, 2008). Tras una breve aproximación descriptiva, se explican las características más importantes de ambas propues as para establecer similitudes y finalmente determinar si existe o no influencia.
Arlés, capital mundial de la fotografía
Authors: León Cannock Alejandro 
Published: August 2020

ARLES: UNA CIUDAD CARGADA DE HISTORIA
La primera vez que puse un pie en Arles fue casi por azar en el año 2010. Mi único recuerdo de aquella pre-histórica visita fue el hermoso afiche del festival de fotografía: un rinoceronte morado sobre un pálido fondo celeste.
Metafísica de la mirada
Authors: Cáceres Álvarez Luis 
Published: August 2020

Él está sentado de espaldas al muro bajo de la terraza de un bar, o quizá solo sea un precipicio en un cielo de invierno.Esta terraza propaga recuerdos, ganas, nostalgia, desasosiego, sonrisas y más recuerdos. Hay espejos rotos, una colección de botellas vacías de vino y ladrillos. Una puerta enfrente de sus ojos. Una puerta falsa —si la abrieras, te caerías por el acantilado—. Piedras. Un cactus seco. Andenes utilizados como jardines. Cada piso cambia de color.De verde a marrón. Un degradé de intensidad tanto en color como de vegetación. Hay gatos también. Corretean entre las estatuas, las sillas y las mesas. Alberto García-Alix, uno de los fotógrafos más reconocidos en España y el mundo, está en Lima.
Pengaruh Penerapan Model Pembelajaran Probing Prompting Terhadap Kemampuan Berpikir Kritis Pada Materi Larutan Elektrolit dan Non Elektrolit
Authors: Sarinawati  
Published: August 2020

AbstractThe purpose of this study was for knowing whether there was a difference and an effect of Probing Prompting Learning model toward student critical thinking ability. It was a quasi-experimental research, using experimental and control groups that would determine the difference of two variables. There were two sample classes—the tenth-grade students of MIA 4 (experiment) that were 28 students taught by using Probing Prompting Learning model and 28 students of MIA 5 (control) taught by using conventional learning. Collecting the data was done by using written posttest, and the obtained data were analyzed by using Independent sample t-test and Simple linear regression test. Based on the result of processing the final data, it was obtained the score of Sig. (2-tailed) 0.000 that was lower than 0.05 (0.000<0.05). It could be concluded that Ha was accepted and H0 was rejected. It meant that there was a difference between Probing Prompting Learning model and conventional learning toward student critical thinking ability. The equation of the regression was Y=56.658+0.351 X. It could be known that the score of the significance (sig.) 0.001 was lower than the probability 0.05 (0.001<0.05), so it could be concluded that Ha was accepted and H0 was rejected. It meant that there was an effect of Probing Prompting Learning model toward student critical thinking ability at the tenth grade of Senior High School of Muhammadiyah 1 Pekanbaru.
KeywordsProbing Prompting Learning, Critical Thinking, Electrolyte and Non-Electrolyte Solution
Desain dan Uji Coba Lembar Kerja Peserta Didik (LKPD) Berbasis Probing-Prompting pada Materi Sistem Periodik Unsur
Authors: Rohman Rini Karsini , Ritonga Pangoloan Soleman 
Published: August 2020

This research is motivated by students' chemical mastery in learning is still low, especially for abstract concept/theory material. This can be seen from students being less active and lacking memory in following the learning process. In addition, schools only rely on textbooks that make students less interested in learning and there is no student workbook to support students' understanding. This research aimed at knowing the appropriateness of the instructional media design in the form of Probing-Prompting based student workbook on Periodic System of the Elements lesson. It was administered at State Islamic Senior High School 1 Pekanbaru. It was R&D (Research and Development) with 4-D model, and it was limited to 3 models—define, design, and development. The subjects of this research were the experts of material, the experts of media, and the experts of language, Chemistry subject teachers, 10 students at the tenth grade of MIA 1. The object was Probing-Prompting based student workbook on Periodic System of the Elements lesson. The research findings showed that Probing-Prompting based student workbook was appropriate to be used and it was based on the results of validity and practicality levels. The percentage of validity level obtained was 85.78% (very valid) and the practicality level was 85.33% (very practical). Based on theses results, it could be identified that Probing-Prompting based student workbook could be tested further.
KeywordsStudent Workbook, Probing-Prompting, Periodic System of the Element
The use of pre-operative virtual reality to reduce anxiety in women undergoing gynaecological surgeries: a prospective cohort study
Authors: Chan Jason Ju In , Yeam Cheng Teng , Kee Hwei Min , Tan Chin Wen , Sultana Rehena , Sia Alex Tiong Heng , SNG Ban Leong 
Published: August 2020

Abstract
Background: Pre-operative anxiety is common and is associated with negative surgical outcomes. Virtual reality (VR) is a promising new technology that offers opportunities to modulate patient experience and cognition and has been shown to be associated with lower levels of anxiety. In this study, we investigated changes in pre-operative anxiety levels before and after using VR in patients undergoing minor gynecological surgery. Methods: Patients who underwent elective minor gynecological surgeries in KK Women’s and Children’s hospital, Singapore were recruited. The VR intervention consisted of 10-minute exposure via a headset loaded with sceneries, background meditation music and breathing exercises. For the primary outcome of pre-operative anxiety, patients were assessed at pre- and post-intervention using the Hospital Anxiety and Depression Scale (HADS). Secondary outcomes of self-reported satisfaction scores and EurQol 5-dimension 3-level (EQ-5D-3L) were also collected. Results: Data analysis from 108 patients revealed that HADS anxiety scores were significantly reduced from 7.2 ± 3.3 pre-intervention to 4.6 ± 3.0 post-intervention (p<0.0001). Furthermore, HADS depression scores were significantly reduced from 4.7 ± 3.3 pre-intervention to 2.9 ± 2.5 post-intervention (p<0.0001). Eighty-two percent of the patients self-reported VR intervention as ‘Good’ or ‘Excellent’. EQ-5D-3L showed significant changes in dimensions of ‘usual activities’ (p=0.025), ‘pain/discomfort’ (p=0.008) and ‘anxiety/ depression’ (p<0.0001). Conclusions: For patients undergoing minor gynecological procedures, the VR intervention brought about a significant reduction in pre-operative anxiety. This finding may be clinically important to benefit patients with high pre-operative anxiety without the use of anxiolytics. Trial registration: This study was registered on clinicaltrials.gov registry (NCT03685422) on 26 Sep 2018.
Qualitative Evaluation of the General Practitioner Chronic Non-Communicable Diseases Training Programme
Authors: Zhang Chunyu , Fang Fang , Peng Mingqiang , Zhao Ying , Liu Ruixue , Jia Cunbo 
Published: August 2020

Abstract
Background: In China, general practitioners have limited ability to provide care for common chronic non-communicable diseases because they lack postgraduate training. In an attempt to improve general practitioners’ skills in this regard, the present authors previously launched the Chronic Non-Communicable Diseases Training Programme. The present study aims to evaluate the effectiveness of this programme.Methods: Thirty-nine trainee general practitioners who participated in the programme underwent semi-structured interviews, which explored how they performed the training, what they achieved from the programme, and their suggestions for future programmes. The interview data were analysed using a thematic analysis approach.Results: Under the guidance of supervisors, the thirty-nine trainee general practitioners completed the structured but individualised training plan, which comprised a four-day basic theory class, three months practising in a ward, and six months assisting in an outpatient clinic. They reported an improvement in their ability to provide care for chronic non-communicable diseases and perform two-way referral, as well as their communication with patients. They also reported that, since returning to their communities, they had become more confident, were building better relationships with their patients, and had changed their clinic behaviours from copying prescriptions to making medical decisions independently. Their principal suggestion for the training programme was to alter the order of the training, as they preferred to practice in the ward before assisting in the outpatient clinic.Conclusion: The course comprised a learner-centred, practice- and apprenticeship-based, general-practitioner training programme. Given the participants’ progress and the beneficial effects of the programme reported in the interview data, it appears to be worthwhile to extend the General Practitioner Chronic Non-Communicable Diseases Training Programme.
THE MIND CRAFT PROJECT – HEALTHY MINDS, HEALTHY PILOTS: A LITERATURE REVIEW ON MINDFULNESS MEDITATION PROGRAMS FOR COMMERCIAL AIRLINES PILOTS
Authors: Vandyke Anita 
Published: August 2020

ABSTRACT
Following the 2015 Germanwings crash, aviation agencies around the world have drawn up new policies relating to management and monitoring of the mental health of pilots. The Mind Craft Project is a literature review that provides an overview of current practices in mindfulness meditation programs in the aviation industry and propose new mind-body programs for pilots for implementation. Mental health is an important issue for the aviation industry as it directly impacts on the wellbeing of pilots. Moreover, a pilot’s mental health can directly affect the safety of passengers and needs to be treated as a public safety issue.
This literature review has demonstrated that the implementation of a mindfulness training program could be a feasible and acceptable method for implementation in a commercial aviation environment to help ease stress, increase concentration and assist in mental health risk management. A few potential limitations to mindfulness interventions were uncovered such as the effectiveness of mindfulness for suicidal tendencies, and cultural behaviors in regards to mental health issues in the aviation industry. However, further research needed as there has been little research conducted on mind-body programs for commercial airline pilots. Recommendations were provided for a follow-up long term study.
Research on the Application of Convolutional Neural Networks in the Image Recognition
Authors: Zhiyu Gao , Bailin Liu , Hongxian Gu , Jing Mu 
Published: August 2020

Abstract
Over the past few years, benefits from the strong feature extraction advantages of Convolutional Neural Networks (CNN)themselves and the efforts and applicationby researchers making, research work on CNN in the field of image recognition has yielded many results and achieved the best performance in classification and regression tasks. This paper focuses on the improvement and application history ofCNNand summarizes the direction of improvement and optimization of CNN in recent years from the perspective of the structure of CNN themselves and their applications in various fields. Finally, this review is summarized with a further outlook on the development direction of CNN.
Dynamical analysis and controllers performance evaluation for single degree-of-freedom system
Authors: Gorial Ivan Isho 
Published: August 2020

Abstract
In automation and mechatronics applications, mass spring damper system (MSDS) plays a significant role in ensuring model serviceability and safety. The system’s dynamic of this mechanical system is quite challenging to control. In this paper, the system is a single degree of freedom (SDOF) spring mass system. The issue of performance evaluation of three controllers, linear proportional integral derivate (LPID), nonlinear PID (NPID), and fuzzy logic controller (FLC), is presented. FLC demands that experience be built on information based on a rule. It has two inputs, one of which is the displacement and the other is the velocity, and force is calculated for forced damped vibration control for a single degree of freedom system. The method used for defuzzification is the center of gravity (COG). However, effective control of a system depends largely on the accuracy of the mathematical model that predicts its dynamics behavior. The mathematical model for the MSDS is based on a set of nonlinear second-order ordinary differential equations to simulate the dynamic accurately. The proposed control schemes are implemented with the aid of MATLAB and SIMULINK to investigate the system performance. The sequence of the three controllers in terms of performance is as follows: the first of them is FLC and then in some dominant cases this is NPID by comparison with the LPID and one without any controller cases. Also, FLC displays more effectiveness and efficiency than the system without this controller after a comparative of system analysis performance evaluation.
Molecular and morphological characterization of the amaryllis lesion nematode, Pratylenchus hippeastri (Inserra et al., 2007), from California
Authors: Handoo Zafar A. , Skantar Andrea M. , Kantor Mihail R. , Hafez Saad L. , Hult Maria N. 
Published: August 2020

Abstract
Root-lesion nematodes (Pratylenchus spp.) are among the most important nematode pests on grapevine along with root-knot, dagger, and ring nematodes. In 2019, two samples of both soil and roots were collected from a vineyard in Delano, Kern County, California and submitted to the United States Department of Agriculture, ARS, Mycology and Nematology Genetic Diversity and Biology Laboratory, Beltsville, MD, for identification purposes. Females and juveniles of Pratylenchus sp. were recovered from the root and soil samples using the sugar centrifugal flotation and Baermann funnel extraction methods. Both morphological observations and molecular analysis of internal transcribed spacer (ITS), 28S large subunit ribosomal DNA, and mitochondrial cytochrome oxidase (COI) sequences indicated that the specimens recovered from the soil and roots were Pratylenchus hippeastri. To the best of the authors’ knowledge, this is the first report of P. hippeastri from California including the first record of this species on grapevine and the second state record in North America. Damages caused by nematodes cannot be over-emphasized, although economic importance of P. hippeastri has never been established. Hence, there is an urgent need to investigate the economic impact of this nematode in vineyards in California State in order to develop sustainable management strategies.
Description of Deladenus gilanica n. sp. (Hexatylina: Neotylenchidae) isolated from wood of black pine in Northern Iran
Authors: Jalalinasab Parisa , Esmaeili Mehrab , Ye Weimin , Heydari Ramin 
Published: August 2020

Abstract
A new species of the genus Deladenus, D. gilanica n. sp. collected from Siahkal forests of Northern Iran, is described and illustrated. The new species is characterized by its 314 to 422-µm-long body, eight incisures in the lateral field, 7.5 to 8.0-μm-long stylet, position of the excretory pore, at the level of the hemizonid, both posterior to the nerve ring 61 to 76 µm from the anterior end, and conical tail with pointed tip. Based on morphology and morphometrics, the new species can be compared with eight known species of the genus: D. aridus, D. durus, D. obesus, D. oryzae, D. processus, D. wilsoni, D. proximus, and D. posteroporus. Evolutionary relationships of the new species with other Deladenus species were assessed with sequences of the D2 to D3 expansion regions of 28S rRNA and partial 18S rRNA gene. The phylogenetic analysis showed that D. gilanica n. sp. is genetically distinct from other included species. Deladenus gilanica n. sp. is a member of the D. siricidicola species complex and close to D. canii, D. nitobei, and D. siricidicola. Typologically, these species share the relative position of the excretory pore to the hemizonid.
A draft genome of Steinernema diaprepesi
Authors: Baniya Anil , Huguet-Tapia Jose C. , DiGennaro Peter 
Published: August 2020

Abstract
Entomopathogenic nematodes within the genus Steinernema are used as biological control agents against significant agricultural pests. Steinernema diaprepesi is native to Florida and very effective in controlling citrus root weevil, a devastating pest of citrus, ornamental plants, and vegetables. Here, we present the draft genome of Steinernema diaprepesi, which is a valuable tool for understanding the efficacy of this nematode as a biological control agent.
Compatibility of fluazaindolizine and oxamyl with Pasteuria penetrans on spore attachment to juveniles of Meloidogyne javanica and M. incognita
Authors: Nasiou Eleni , Thoden Tim , Pardavella Iro V. , Tzortzakakis Emmanuel A. 
Published: August 2020

Abstract
Fluazaindolizine is a novel sulfonamide nematicide that is the active ingredient (a.i.) of Salibro™, a.i. Reklemel™. Its compatibility with Pasteuria penetrans, a bacterial parasite of root-knot nematodes (Meloidogyne spp.), was investigated in populations of M. javanica and M. incognita. Spores of a single P. penetrans isolate (Pp 3) or a blend of six isolates were incubated in the suspensions of fluazaindolizine (SalibroTM 500SC, at 5, 50, and 250 ppm a.i.) and oxamyl (Vydate™ 10 L, 10% (a.i.) at 25 and 50 ppm a.i.) for 1, 7, and 21 days; controls were incubated in water. Thereafter, the suspensions were washed through a cellulose filter (3 µm) so as to remove the nematicide, and the spores retained on the filter were suspended in water. Juveniles (J2) were exposed in these spore suspensions in Petri dishes and the number of attached spores was recorded. Neither fluazaindolizine nor oxamyl, at all the tested dosages, had any negative effect on the rate of spore attachment. The spore encumbered J2 from some experiments were used to infect tomatoes. Females without egg masses were extracted from the roots after 50 days and checked for eggs in ovaries and mature spores of P. penetrans. Despite no mature spores present in the females, there was evidence of a low percentage of infection in a few treatments. A possible explanation is that since the bacterium had been kept stored in the form of dried roots for a long period, its ability to infect nematodes was decreased.