bluuebunny/crossref_metadata_2025_split huggingface dataset:
Molybdenum(VI) oxide: New methods of synthesis and properties
Authors: Nikishina E. E. , Lebedeva E. N. , Drobot D. V. 
Published: May 2020

Objectives. The present study aims to develop new methods for the synthesis of molybdenum(VI) oxide, which is a precursor for the synthesis of functional materials, as well as to investigate the physicochemical properties of the resulting oxide phases. Methods. The synthesized phases and the products of their thermolysis were studied by differential thermal analysis, IR spectroscopy, X-ray diffraction analysis, and granulometry. Results. Three methods for the synthesis of molybdenum(VI) oxide were developed, and the physicochemical properties of the oxide phases obtained were studied. The first method consisted in the reaction of molybdenum pentachloride with a 6.0–9.5 mol/L ammonia solution, the second one was the reaction of niobium pentachloride with a sulfuric acid solution, and the third method involved the reaction of ammonium molybdate with nitric acid, affording brown molybdenum(V) MoO(OH)3 hydroxide, a bright blue precipitate of molybdenum blue MoO2.75, and white hydrated oxide MoO3·H2O, respectively. Conclusions. A series of thermal and X-ray diffraction analysis demonstrated that in all cases the samples were amorphous phases. Heat treatment at 580 °C of the synthesized phases led to the formation of a rhombic modification of molybdenum trioxide. The lattice parameters and X-ray density were calculated for all thermolysis products. The effect of heat treatment on the particle size of the synthesized samples and their thermolysis products was studied. Particle size analysis demonstrated that particles of different diameters were formed depending on the synthetic method. The smallest particle size (0.3–0.6 µm) was found in molybdenum trioxide, a product of the thermolysis of the sample obtained by the reaction of molybdenum pentachloride with a concentrated ammonium solution.
Photoalignment and photopatterning: New liquid crystal technology for displays and photonics
Authors: Chigrinov V. G. 
Published: May 2020

Objectives. Since the end of the 20th century, liquid crystals have taken a leading position as a working material for the display industry. In particular, this is due to the advances in the control of surface orientation in thin layers of liquid crystals, which is necessary for setting the initial orientation of the layer structure in the absence of an electric field. The operation of most liquid crystal displays is based on electro-optical effects, arising from the changes in the initial orientation of the layers when the electric field is turned on, and the relaxation of the orientation structure under the action of surfaces after the electric field is turned off. In this regard, the high quality of surface orientation directly affects the technical characteristics of liquid crystal displays. The traditional technology of rubbing substrates, currently used in the display industry, has several disadvantages associated with the formation of a static charge on the substrates and surface contamination with microparticles. This review discusses an alternative photoalignment technology for liquid crystals on the surface, using materials sensitive to polarization of electromagnetic irradiation. Also, this review describes various applications of photosensitive azo dyes as photo-oriented materials. Results. The alternative photoalignment technology, which employs materials sensitive to electromagnetic polarization, allows to create the orientation of liquid crystals on the surface without mechanical impact and to control the surface anchoring force of a liquid crystal. This provides the benefits of using the photoalignment technology in the display industry and photonics—where the use of the rubbing technology is extremely difficult. The optical image rewriting mechanism is discussed, using electronic paper with photo-inert and photoaligned surfaces as an example. Further, different ways of using the photoalignment technology in liquid crystal photonics devices that control light beams are described. In particular, we consider switches, controllers and polarization rotators, optical attenuators, switchable diffraction gratings, polarization image analyzers, liquid crystal lenses, and ferroelectric liquid crystal displays with increased operation speed. Conclusions. The liquid crystal photoalignment and photopatterning technology is a promising tool for new display and photonics applications. It can be used for light polarization rotation; voltage controllable diffraction; fast switching of the liquid crystal refractive index; alignment of liquid crystals in super-thin photonic holes, curved and 3D surfaces; and many more applications.
Implementasi Digital Media Dongeng dan Game Pembelajaran Interaktif Membaca Metode Suku Kata
Authors: Dwi Setia Lutfiyah , Lestariningsih Tri , Kudhori Ahmad , Atmaja Ardian Prima 
Published: May 2020

Kelas Baca anakku sayang didirikan sebagai solusi bagi anak usia sekolah yang memiliki keterlambatan dalam membaca, menulis dan berhitung dengan menggunakan metode suku kata dan diperdalam penanaman karakternya melalui dongeng. Di era digital saat ini kecenderungan anak-anak untuk menggunakan gadget seperti laptop atau smartphone dalam intensitas yang tinggi. Beberapa metode dan teknik pembelajaran coba dilakukan untuk mengalihkan anak-anak dari efek ketergantungan gadget, salah satunya melalui dongeng. Metode utama yang digunakan adalah perancangan video game pembelajaran untuk menciptakan dan meningkatkan reputasi Kelas Baca Anakku sayang di era digital. Pencitraan merek internet ditawarkan untuk membuat sistem yang terdiri dari situs web yang akan dihubungkan dengan media sosial untuk mendapatkan beberapa crowdfunding. Hasil program kemitraan masyarakat diharapkan mampu membangun video game pembelajaran metode suku kata sekaligus mampu membangun mitra merek secara digital dan mempublikasikan Kelas Baca Anakku sayang ke komunitas yang lebih luas..
Implementasi Repair Grove Ban Layak Pakai dan Pengembangan Produktifitas Sumber Daya Manusia untuk Masyarakat Karang Joang
Authors: Awali Jatmoko , Laksono Andromeda Dwi , Ismail Ika , Triana Yunita , Syaifuddin Ahmad 
Published: May 2020

Pendidikan adalah modal utama bagi suatu bangsa dalam upaya meningkatkan kualitas sumberdaya manusia yang dimilikinya. Sumberdaya manusia yang berkualitas akan mampu mengelola sumber daya alam dan memberi layanan secara efektif dan efisien untuk meningkatkan kesejahteraan masyarakat. Maka dari itu, titik sentral pembangunan adalah pemberdayaan sumber daya manusia termasuk tenaga kerja, baik sebagai sasaran pembangunan maupun sebagai pelaku pembangunan. Balikpapan merupakan kawasan industri yang dimana di desa Karang Joang tersebut merupakan daerah yang sedang berkembang. Namun sejauh ini, kurangnya pendidikan dan belum ada tindakan yang nyata baik dari pemerintah maupun tokoh masyarakat dan pengusaha. Akibatnya kebanyakan orderan yang diminta oleh para pengembang beralih pada sekelompok orang saja. Berdasarkan kenyataan tersebut, maka lembaga pelatihan dan pengembangan produktifitas sumber daya manusia yang berlokasi di desa Karang Joang mencoba untuk memfasilitasi kelompok produktif ini agar bisa lebih produktif dan berguna bagi upaya memperbaiki ekonomi keluarga, salah satunya adalah dengan jalan memberikan pelatihan tentang manajemen dan repair ban layak pakai.
Meningkatkan Nilai Ekonomi Buah Nanas Subgrade Dengan Sentuhan Teknologi Penggoreng Vakum (Increasing the Economic Value of Subgrade Pineapple With a touch of Vacuum Frying Technology)
Authors: Sugiarto Sugiarto , W Irawan Dodi , Rudy Yuwono 
Published: May 2020

Sebagian tanaman buah-buahan bersifat musiman, saat musim panen produksi buah melimpah namun di luar musim panen, buah sulit ditemukan. Kondisi tersebut menyebabkan nilai ekonomi beberapa komoditas buah saat musim panen sangat rendah. Buah nanas di Kabupaten Kediri terbagi menjadi grade A, grade B, grade C dan grade D. Permasalahan yang sering dihadapi petani nanas adalah harga jatuh saat panen raya sementara buah tidak dapat disimpan terlalu lama. Bahkan hasil panen nanas grade C dan grade D akhirnya tidak terserap pasar. Panjangnya rantai distribusi juga menjadi problem petani karena menjadikan hasil pendapatannya kurang maksimal.Melalui kegiatan Program Doktor Mengabdi (DM) Universitas Brawijaya tahun 2019, tim pelaksana ingin membantu mengatasi permasalahan harga nanas yang rendah dengan melakukan diseminasi teknologi pengolahan buah nanas menjadi produk olahan buah nanas kering agar memiliki nilai ekonomi lebih tinggi dan waktu simpan lebih lama. Buah nanas diolah menjadi produk olahan kripik nanas menggunakan teknologi penggoreng vakum kapasitas 12 kg. Bahan baku yang diolah adalah buah nanas dari petani di Desa Wonorejo Trisulo Kecamatan Plosoklaten Kabupaten Kediri terutama grade C. Temperatur penggorengan diseting 83 oC dengan tekanan vakum 70 cmHg.Hasilnya adalah, buah nanas grade C mampu ditingkatkan nilai ekonominya dengan memberikan muatan teknologi produksi menggunaakn mesin penggoreng vakum. Berdasarkan analisis ekonomi, dari bahan baku nanas grade C mampu menghasilkan keuntungan produksi sekitar 95% dari biaya produksi. Sedangkan untuk buah nanas grade A mampu menghasilkan keuntungan produksi sekitar 61% dan grade B mampu menghasilkan keuntungan produksi sekitar 73 % dari biaya produksinya. Hal ini menunjukkan bahwa sentuhan teknologi produksi pada buah nanas menggunakan teknologi penggoreng vakum dapat menaikan nilai ekonominya
Why did Engineering Students Choose to Study in China? 工科学生缘何来华留学
Authors: Zhang Guoyang , Zhu Jiabin 
Published: May 2020

China is currently the third-largest destination country for international students in the world. Among the international students in China, the number of those in engineering schools is increasing most rapidly. Based on the “Push-Pull” theory (Altbach, 1998) and a three-stage decision-making theory (Ma, 2017), this research explored the factors influencing international students’ choices of engineering schools in China. Twenty-two international students in engineering schools at a leading Chinese university were interviewed. Qualitative analyses of the interview data suggested that the participants were attracted to China by the availability of scholarships, ranking of the host university, and opportunities for personal growth and professional development. Meanwhile, it was found that positive relationships between the students’ home countries and China, inadequate educational and research resources in home countries, and higher tuition fees and educational costs involved in studying in Western countries also influenced their decision-making process. 中国已经成为全球第三大留学目的国，其工科留学生数量增速最快、位居所有学科第二。本研究基于囊括宏观因素与微观因素的“推拉”理论和国际学生择校三阶段理论的指导，采用质性研究方法，以S校为研究平台，一对一地访谈了来自亚、欧、美、非洲的22名工科学生,旨在探索形成工科学生来华留学“热潮”的原因。研究发现，可获得的奖学金、雄厚的工科实力、促进个人发展是影响他们来华留学的主要因素，友好的两国关系、母国教育与研究资源的匮乏、西方国家昂贵的留学费用在择校过程中也起到了一定作用。
Roland Morris Disability Questionnaire in Bengali for Evaluation of Patients With Low Back Pain
Authors: Islam SM Mazharul , Emran Mohammed , Baral Aparajeya Bivab Bikash , Happy Bijoya Dey , Islam Fahad , Saha Ripon Kumar , Khan Md Moniruzzaman 
Published: May 2020

Background: Low back pain (LBP) has been identified as one of the most frequent, disabling and costly condition which create a significant clinical and socioeconomic burden on national economy. The Roland Morris Disability Questionnaire (RMDQ)is one of the most commonly used outcome measures in patients with LBP.
Objectives: To develop a culturally adapted Bangla version of RMDQ and to test its reliability and validity in patients with low back pain.
Materials and Methods: This observational study was carried out from September 2015 to August 2016. The US English RMDQ was translated into Bangla after established crosscultural adaptation procedures, recommended by Beaton et al. Reliability was assessed by using internal consistency (Cronbachs' alpha coefficient) and inter-rater reliability (the intra-class correlation coefficient - ICC). The Content validity was evaluated by three expert Physiatrists and construct validity was tested by association with the physical functioning (PF-10) subscale of 36-items short form health survey (SF-36).
Results: 100% participants had responded to all items of RMDQ. It was found to have 100% content validity. 50 % respondents did not have any difficulty in understanding the Bangla RMDQ and 30% faced difficulty in understanding in 1 item and 20% faced difficulty in 2 items (n=30). The values of Cronbachs' alpha coefficient and ICC were 0.89 and 0.95 respectively. Bangla RMDQ showed good correlation (r=-0.81) with Physical Functioning (PF-10) subscale of SF-36 in assessing construct validity.
Conclusion: Bangla RMDQ appears to be an acceptable, reliable, and valid instrument for assessing disability in patients with LBP.
KYAMC Journal Vol. 11, No.-1, April 2020, Page 21-25
Outcome of Preoperative Administration of Oral Ambrisentan on Pulmonary Hypertension After Cardiac Surgery for VSD
Authors: Islam ASM Shariful , Ahsan Mahbub , Rahman Md Lutfar , Sarkar Ramapada , Munshi Prakash Chandra 
Published: May 2020

Background: There is significant difference between the survival of patient with and without post-operative pulmonary arterial hypertension (PAH). This study was designed to see the early post-operative outcomes of PAH after preoperative oral administration of ambrisentan.
Objective: Evaluation of role of preoperative oral ambrisentan for the management of PAH following cardiac surgery for ventricular septal defect (VSD) with moderate to severe PAH.
Materials and Methods: A total of 54 patients were stratified into two equal groups (n=27) depeding upon receiving of orala mbisentan. Ambrisentan group received dose of 2.5mg and 5mg in two divided doses for weight <20kg and > 20 kg respectively at least two weeks before surgery.
Results: PASP was measured peroperatively before establishment of CPB, immediately after VSD closure and after weaning from CPB which were 59.55±11.16 mm of Hg, 45.49±9.46 mm of Hg and 40.49 ±10.33 mm of Hg respectively in the ambrisentan group (Group-A) and was 71.92 ±10.62 mm of Hg, 66.34±10.22 mm of Hg and 62.14 ±9.46 mm of Hg respectively in the control group (Group-B) with a p value of 0.002, 0.001 and 0.001 respectively. Considering PASP on echocardiogram at 7th post-operative day was 33.55 ± 1.23 in ambrisentan group and 41.70 ± 5.60 in control group. At one month PASP on echocardiogram was 30.55±2.26 in ambrisentan group and 39.11 ±3.28 in control group.
Conclusion: Preoperative oral administration of ambrisentan is more effective in control of postoperative PAH and may be advised in every patients with VSD with moderate to severe PAH.
KYAMC Journal Vol. 11, No.-1, April 2020, Page 36-41
Systemic Mastocytosis With Features of Chronic Liver Disease, Proptosis and Itchy Hyper-Pigmented Skin Lesion
Authors: Md Benzamin - , Islam Md Rafiqul , Khadga Mukesh , Begum Fahmida , Mazumder Wahiduzzaman , Thakur Shashi Bhushan , Hasan Md Mahmudul , Karim ASM Bazlul 
Published: May 2020

Mastocytosisis a rare disorder of functionally defective mast cells. Infiltration of this functionally defective mast cells and CD34+ mast cell precursors in various organ leads to clinical manifestation. Skin is the most common affected organ. In systemic mastocytosis along with skin, internal organs such as the liver, spleen, bone marrow, small intestines and eye also involve. Diagnosis is done on the basis of WHO diagnostic criteria. Here we presenting this rare entity presented to us with features of chronic liver disease, proptosis and itchy hyperpigmented skin lesion diagnosed as systemic mastocytosis.
KYAMC Journal Vol. 11, No.-1, April 2020, Page 50-53
Os sentimentos vivenciados pelo profissional de limpeza e desinfecção de superfícies em serviços de saúde
Authors: Balbino Carlos Marcelo , Silvino Zenith Rosa , Ferreira Alexandra de Oliveira Matias , Izu Marina , Joaquim Fabiana Lopes , Oliveira Taiane Aparecida Lima , Corrêa Vivian Rodrigues 
Published: May 2020

Este estudo teve como objetivo identificar os sentimentos vivenciados pelos profissionais do Serviço de Limpeza e Desinfecção de Superfícies em Serviços de Saúde durante sua atividade laboral. Para tal foi realizado um estudo exploratório-descritivo, de abordagem qualitativa, em um Hospital situado no interior do Estado Rio de Janeiro com 29 profissionais do Serviço de Limpeza e Desinfecção de Superfícies em Serviços de Saúde, no período de julho a agosto de 2019 através de entrevistas dialógicas com um roteiro de perguntas abertas por meio de gravação em áudio, com posterior análise e discussão de dados. Diante da análise foi possível criar eixos temáticos, e discutir, e obtiveram-se os seguintes resultados “... sofrimento com os sentimentos alheios...” e “...gostar de trabalhar...” como os sentimentos mais citados pelos entrevistados e a “preocupação com os doentes” como o impacto mais citado. Ante ao exposto, foi possível concluir que, é necessário um treinamento para essa equipe que lida muita das vezes para melhor instruí-los e aperfeiçoar o trabalho de limpeza e auxiliá-los nas adversidades encontradas durante o serviço, o apoio de uma equipe multiprofissional pode ajudar na amenização de possíveis sentimentos e interferências na qualidade de vida dos profissionais envolvidos neste tipo de serviço.
‘The Power of Our Mouths’: Gossip as a Female Mode of Revenge1
Authors: McHardy Fiona 
Published: May 2020

This chapter examines gendered methods of revenge as depicted in ancient Greek literature and court trails. While men favour physical attacks or judicial processes when taking revenge on an enemy, women are typically thought to be too weak to attack in these ways and are shown using persuasion or trickery to achieve revenge or bringing up their children as future avengers. Gossip provides another mechanism by which women and other disempowered individuals, such as slaves, can take revenge: either directly, by damaging an individual’s reputation, or indirectly, by provoking others to violent behaviour. Focusing on literary texts (such as Aeschylus’ Choephori, Euripides’ Andromache and Hippolytus, and Chariton’s novel Chaereas and Callirhoe) and legal revenge narratives (such as Lysias’ On the Murder of Eratosthenes) the chapter demonstrates how women find circuitous and covert ways to achieve revenge, while simultaneously showing how women’s reputation for gossip allows them to be used as scapegoats for men’s violence.
State Primary Standard of Gas Volume and Flow Rate Units for the Pressure Range of 1 MPa to 5 MPa (PVTt-15)
Authors: Rozhnov M. S. , Kuzmenko Yu. V. , Melnyk D. M. , Levbarg O. S. , Rak A. M. , Pashun V. I. , Pohribna L. M. 
Published: May 2020

For the first time in Ukraine a primary measurement standard of gas volume and flow rate units in a pressure range of 1 MPa to 5 MPa has been created. The standard is based on realisation of the units by PVTt principle and units dissemination using critical Venturi nozzles. Gas passing through the nozzle during its calibration fills an evacuated collection tank located downstream the nozzle, and the respective time interval is measured. Mass flow rate is calculated by multiplying the volume of the collection tank by the gas density change and dividing by the tank filling time. Density values are determined by the equation of state and the measured initial and final pressure and temperature values. The structural and functional scheme of the measurement standard is shown in Figure 3.
The standard consists of two units. The first unit is intended to realise, keep and transfer the units of gas volume and flow rate. The general view of the block is shown in Figure 4. The unit contains high pressure collection tank, precision water thermostat, vacuum pump, piston gas pressure gauge, flow switch, fine filter, a set of seven Venturi nozzles with diameters from 0.1 mm to 3.0 mm. The second unit is designed to form a stationary gas flow and provide a critical gas flow rate (at the speed of sound) at the nozzle throat. In the case of an elementary reversible adiabatic (isoentropic) process at a critical velocity, the mass flow rate of gas passing through the nozzle is maximally possible. The unit consists of equipment for reducing the pressure from 150 bar to 70 bar and from 70 bar to 10 bar, the heat exchanger and the instruments measuring the pressure and temperature of the gas flow. The created measurement standard will assure metrological traceability of the measurements of gas volume and volume flow rate at high pressures for the flow rate up to
100 m3/h and calibration of the primary reference nozzles with a throat diameter from 0.1 mm to 3 mm.
Metrological Activity At the Enterprise
Authors: Dziabenko O. M. 
Published: May 2020

When organizing metrological activity at an enterprise, the question arises of the need to organize verification (metrological confirmation) of measuring equipment that is not used in the field of legislatively regulated.
In the international standards «Quality Management Systems» (ISO 9001, EN 9100, AQAP-2110), to ensure that the requirements of Section 7.1.5 «Resources for Monitoring and Measurement» are met, the requirement is established that all measuring equipment, as part of a measurement management system, must have metrological confirmation in accordance with the requirements of ISO 10012.
Metrological confirmation provides for the calibration and verification of measuring equipment.
Laboratory specialists who carry out metrological confirmation of measuring instruments, establish a relationship between the values of the values that provide the standards, and the result of measuring this quantity using measuring instruments (carry out calibration), based on this ratio establish the conformity / non-compliance of the measuring instruments with the established requirements (carry out verification) and draw up the corresponding supporting document.
After comparing the concepts of metrological confirmation and verification of measuring instruments, we can conclude that metrological confirmation (calibration and verification) of measuring equipment is essentially nothing more than verification of measuring instruments.
Metrological activities to ensure the uniformity of measurements in enterprises should comply with the requirements of ISO 10012: 2003. This standard establishes general requirements and contains recommendations for the management of measurement processes and metrological confirmation of the suitability of measuring equipment, which is used to maintain and demonstrate compliance with metrological requirements.
Compliance with the requirements set forth in the ISO 10012 standard makes it possible to ensure compliance with the measurement requirements and the management of measurement processes established by the international standards «Quality Management Systems».