bluuebunny/crossref_metadata_2025 huggingface dataset:
Language Shift and Maintenance: The Case of Dhatki and Marwari Speaking Youth
Authors: Jhatial Zeeshan , Khan Jasia
Published: February 2022

Many languages are endangered or facing extinction in this rapidly globalized world. A major cause of language death across the world is language shift (Dweik & Al-Refai, 2015; Campbell, 1994). Pakistan is home to various ethnicities and languages. Many indigenous languages are spoken in Pakistan; however, with English being the official language and Urdu being the national language, many minority languages face the risk of extinction, as language shift towards the more dominant languages occurs in the indigenous communities of the country. This paper aims to investigate the process of language shift and language maintenance among Dhatki and Marwari speaking youth living in Hyderabad, Pakistan. The participants were students and recent graduates of the University of Sindh, Jamshoro. A total of 10 Dhatki speakers and 10 Marwari speakers were interviewed for this study. Semi-structured interviews were administered to collect in-depth information about their language proficiency, language use in various domains, language representation and language attitude. The findings of the study revealed that Dhatki and Marwari languages are used in home settings for various functions. These indigenous languages, however, are not used in educational institutions. Moreover, traditional and digital media representation of these languages is quite limited. Dhatki and Marwari speaking youth, nonetheless, are proud of their ethnic and linguistic heritage and continue to make efforts to maintain their language in various domains.

Keywords: Dhatki, language maintenance, language shift, Marwari, youth
Discourse of Socio-political Crisis and the Pandemic: A Linguistic Analysis of Jordanian Arabic Cartoons on COVID-19
Authors: Lulu Reem , Habeeb Luwaytha S , Hadji Abdul Racman Sohayle M.
Published: February 2022

COVID-19 has affected the lifeways of people all over the world. Hence, this study is mainly concerned with the discourse related to COVID-19. It investigated the way cartoonists represented this pandemic in Arabic and whether such a representation reflects the contemporary attitudes and values of the society. For this purpose, 150 cartoons were selected from Alghad, an online Jordanian daily in Arabic, published between the years 2020-2021. Data was analysed through a multimodal analysis. The study revealed ten themes related to COVID-19 and used by Arabic cartoonists including the quarantine and the lockdown, economic devastation, political discourse, social relationship discourse, wishes and occasions, greetings for medical staff, travel and tourism, work and education, health awareness, and dissatisfied citizens. Our study was in agreement with the results of Joubert and Wasserman (2020). They stated that editorial cartoons are important not only because they disseminate information during a public health pandemic but also because they are considered a great source of data to measure public perceptions and sentiments.  

Keywords: cartoons, economic devastation, health awareness, political discourse, quarantine, social discourse
Ipomoea laxiflora H. J. Chowdhery & Debta (Convolvulaceae): A New Distribution Record for North Maharashtra
Authors: Kapadane K K , Shelke R A , Rajput K S , Raole V M
Published: February 2022

Ipomoea laxiflora H. J. Chowdhery & Debta (Convolvulaceae) is reported as an addition to the flora of Dhule, Jalgaon and Nandurbar Districts and as a new distributional record for North Maharashtra. Morphologically, present species similar to I.  triloba L., and is separated by absence of hairs on ovary and capsules. So far, the present species is reported from northern part of India, Gadchiroli (Vidarbha) and Ichalkaranji (Kolhapur District). A brief description, distribution, conservation status is given to facilitate easy identification of I. laxiflora in the field.
Observations on Bioculture and Medicinal Practices in Akkalkuwa Tehsil (Nandurbar District) In Maharashtra
Authors: Khare Swapnil , Pawar Dr.Shubhangi , Patil Dr.D.A.
Published: February 2022

An inventory was conducted in a tribal dominated tehsil Akkalkuwa in Nandurbar district of Maharashtra. It was aimed at knowing role of plants in the life of tribal people from the standpoint of concrete and abstract relationship with the ambient plant world. Total 12 angiospermic species belonging to 12 genera and 11 families have a considerable role in their bioculture and healthcare. All these species are used to combat various human afflictions in the form of different recipes. A considerable diversity of diseases is recorded in the area under study. Plant species interwoven with indigenous culture should also be examined for concrete relationship for the welfare of mankind.
Phytochemical and Biological Effects of Sesamum indicum L.- A Review
Authors: Rashed Khaled
Published: February 2022

Sesamum indicum L. is from Family Pedaliaceae. It plays an important role in ancient culture and modern system of medicine. It is commonly known as sesame. It is cultivated throughout India, mainly for its seeds and oil. The plant traditionally used in the treatment of hemorrhoids, dysentery, constipation, cough, amenorrhea, dysmenorrhea and ulcers. It also has antifungal, anticancer, antitumor, antiatherosclerotic activity. The total alcoholic extracts of all residual aerial parts of this plant show antioxidant, anticancer, antiaging and anticoagulant activities.
Analisis Praktik Sumber Daya Manusia dan Inovasi Terhadap Kinerja UMKM di Kabupaten Bantul
Authors: Nurcahyanti Febriani Wahyusari , Ruscitasari Zulfatun
Published: February 2022

Penelitian ini bertujuan untuk melihat hubungan antara a) praktik sumber daya manusia terhadap Inovasi, b) praktik sumber daya manusia terhadap kinerja UMKM, c) Inovasi terhadap kinerja UMKM. Populasi dalam penelitian ini adalah UMKM di Kabupaten Bantul sejumlah 104 UMKM dengan teknik sampling purposive, dan teknik analisis SEM-PLS. Berdasarkan hasil output statistik, untuk variabel HRM Praktik berpengaruh positif signifikan terhadap variabel Inovasi sebesar 48,285 > T-tabel (1.995), HRM Praktik berpengaruh positif signifikan terhadap Kinerja UMKM Sebesar 3,243 > T-tabel (1,995), Inovasi berpengaruh positif signifikan terhadap Kinerja UMKM sebesar 3,586 > T-tabel (1,995).
Pengaruh Sistem Informasi SDM, Pelatihan Kerja dan Disiplin Kerja Terhadap Kinerja Karyawan PT Mitra Global Kencana
Authors: Ardianto Riski Eko , Putra Maha
Published: February 2022

Sumber daya manusia merupakan faktor utama dalam menentukan keberhasilan suatu usaha. dalam hal ini karyawan pada PT. Mitra Global Kencana memiliki peran yang sangat penting dalam proses pencapaian perusahaan, oleh karena itu sistem informasi sdm, pelatihan kerja dan disiplin kerja perlu diterapkan untuk tercapainya kinerja karyawan yang baik. Dilihat dari hal tersebut maka rumusan masalah dalam penelitian ini adalah Apakah sistem informasi sdm, Pelatihan kerja dan Disiplin kerja berpengaruh positif dan signifikan terhadap kinerja karyawan? Jenis di dalam penelitian ini adalah penelitian kuantitatif. Pengambilan sampel ini dengan menggunakan teknik sampel jenuh yang mana semua jumlah populasi dijadikan sampel pada penelitian ini yang berjumlah 63 responden, dan pengumpulan data pada penelitian ini meliputi observasi, penyebaran kuesioner dan studi kepustakaan. Teknik analisis data pada penelitian ini yaitu uji validitas, reliabilitas, uji asumsi klasik, analisis deskriptif, analisis linear berganda dan uji hipotesa. dengan menggunakan program aplikasi SPSS Versi 25 yang menunjukan hasil bahwa terdapat pengaruh positif dan signifikan antara sistem informasi sdm, pelatihan kerja dan disiplin kerja terhadap kinerja karyawan secara parsial. Selanjutnya dapat disimpulkan bahwa sistem informasi sdm berpengaruh positif dan signifikan terhadap kinerja karyawan dilihat dari hasil thitung (6,349) > ttabel (1,998) dan nilai signifikansi (0,000) < (0,05), Pelatihan kerja memiliki pengaruh positif terhadap kinerja karyawan dilihat dari thitung (4,400) > ttabel (1,998) dan nilai signifikansi (0,000) < (0,05), dan Disiplin kerja berpengaruh positif terhadap kinerja karyawan dengan hasil thitung (3,490) > ttabel (1,998) dan nilai signifikansi (0,001) < (0,05).
Pengaruh Kepemimpinan Transformasional, Lingkungan Kerja, dan Kompensasi Terhadap Kepuasan Kerja Karyawan PT BPR BKK Kebumen (PERSERODA)
Authors: Prayekti Prayekti , Pangestu Kris Aji
Published: February 2022

Tujuan dari penelitian ini adalah untuk mengetahui adanya pengaruh kepemimpinan transformasional terhadap kepuasan kerja karyawan. Pengaruh lingkungan kerja terhadap kepuasan kerja karyawan. Pengaruh kompensasi terhadap kepuasan kerja karyawan. Pengaruh kepemimpinan transformasional, lingkungan kerja, dan kompensasi terhadap kepuasan kerja karyawan.  Penelitian ini merupakan jenis penelitian kuantitatif. Teknik pengambilan sampel pada penelitian ini yaitu teknik purposive sampling. Jumlah sampel dalam penelitian ini sebanyak 67 orang karyawan. Teknik pengumpulan data dalam penelitian ini menggunakan kuesioner. Adapun metode analisis data yang digunakan dalam penelitian ini yaitu uji validitas, uji reliabilitas, uji deskriptif, uji asumsi klasik, dan uji regresi linier berganda. Analisis data tersebut dilakukan guna mengidentifikasi variabel-variabel independen yang mempengaruhi variabel dependen.  Hasil penelitian menunjukan bahwa kepemimpinan transformasional tidak berpengaruh terhadap kepuasan kerja karyawan.  Lingkungan kerja berpengaruh terhadap kepuasan kerja karyawan. Kompensasi berpengaruh terhadap kepuasan kerja karyawan. Kepemimpinan transformasional, lingkungan kerja, dan kompensasi secara simultan berpengaruh positif signifikan terhadap kepuasan kerja karyawan.
Pengaruh Kompetensi, Integritas, dan Pengembangan Karir Terhadap Kinerja Karyawan Departemen Weaving Produksi pada PT XYZ
Authors: Setiastuti Rina , Zuhriatusobah Juju , Rahayu Yulianita
Published: February 2022

Penelitian ini dilakukan pda PT. XYZ, penelitian ini bertujuan untuk menganalisis pengaruh kompetensi, integritas, dan pengembangan karir terhadap kinerja karyawan. Penelitian ini merupakan jenis penelitian kuantitatif, teknik pengumpulan data yang digunakan adalah dengan menyebarkan kuesioner kepada karyawan, menggunakan teknik sampling jenuh dengan tidak merubah populasi. Jumlah populasi yang ada pada Departemen Weaving Produksi PT.XYZ yaitu sebanyak 90 orang. Berdasarkan hasil penelitian ini, disimpulkan bahwa kompetensi dan integritas secara parsial berpengaruh signifikan terhadap kinerja karyawan, sedangkan pengembangan karir tidak berpengaruh signifikan terhadap kinerja keryawan pada Departemen Weaving Produksi PT.XYZ. Hasil uji koefisien determinasi (r-square) kinerja karyawan sebesar 0,380. Kompetensi, integritas, dan pengembangan karir secara simultan mempengaruhi kinerja karyawan sebesar 38% dan sisanya sebesar 62% dipengaruhi oleh variabel lain diluar penelitian.
Pengaruh Gaya Kepemimpinan Transformasional dan Lingkungan Kerja Terhadap Kepuasan Kerja Pegawai Generasi Milenial Kementerian Perdagangan
Authors: Wahyuningsih Wahyuningsih , Sudibjo Niko
Published: February 2022

Penelitian ini bertujuan untuk mengetahui apakah gaya kepemimpinan transformasional dan lingkungan kerja berpengaruh positif terhadap kepuasan kerja pegawai. Penelitian ini dilakukan pada generasi milenial Kementerian Perdagangan dengan jumlah responden 162 pegawai dengan menggunakan metode non-random sampling dan analisis statistik dengan Partial Least Square Structural Equation Modelling (PLS-SEM). Hasil penelitian menunjukkan bahwa terdapat pengaruh positif dan signifikan gaya kepemimpinan transformasional dan lingkungan kerja terhadap kepuasan kerja pegawai generasi milenial Kementerian Perdagangan. Penelitian ini diharapkan menjadi masukan bagi organisasi untuk dapat mengelola gaya kepemimpinan transformasional dan lingkungan kerja yang lebih baik agar memberikan kepuasan kerja yang lebih besar bagi pegawai khususnya generasi milenial sehingga kinerja pegawai dapat meningkat dan tujuan organisasi tercapai.
Pengaruh Pengembangan Karir dan Penempatan Terhadap Kepuasan Kerja yang Berdampak pada Kinerja Karyawan pada PT Sanco Perdika Pratama di Jakarta
Authors: Sumarjo Wahid
Published: February 2022

Penelitian ini bertujuan untuk mengetahui pengaruh pengembangan karir dan penempatan terhadap kepuasan kerja yang berdampak pada kinerja karyawan pada PT. Sanco Perdika Pratama di Jakarta. Metode yang digunakan adalah explanatory research dengan sampel sebanyak 98 responden. Teknik analisis menggunakan analisis statistik dengan pengujian regresi, korelasi, determinasi dan uji hipotesis. Hasil penelitian ini Pengembangan karir berpengaruh signifikan terhadap kepuasan kerja sebesar 38,8%, uji hipotesis diperoleh signifikansi 0,000 < 0,05.  Penempatan berpengaruh signifikan terhadap kepuasan kerja sebesar 38,5%, uji  hipotesis diperoleh signifikansi 0,000 < 0,05. Pengembangan karir dan penempatan secara simultan berpengaruh signifikan terhadap kepuasan kerja sebesar 49,5%, uji hipotesis diperoleh signifikansi 0,000 < 0,05.Kepuasan kerja berpengaruh signifikan terhadap kinerja karyawan sebesar 39,7%, uji  hipotesis diperoleh signifikansi 0,000 < 0,05.
COVID-19: Analisis Job Insecurity dan Job Engagement Terhadap Job Performance Karyawan Hotel di Semarang
Authors: Octafian Ray , Nugraheni Kristinawati Setyaningrum
Published: February 2022

COVID-19 telah menyebar cukup lama di Indonesia, sejak awal maret 2020 virus corona masuk di Indonesia dan menyebar sangat cepat hingga membuat hotel dan restoran mengalami okupansi sekitar 30%. Sukamdani (2020) menyatakan jika okupansi turun menjadi 30%, hotel maupun restoran akan mengambil tindakan efisiensi biaya karyawan dengan melakukan kerja gilir mengakibatkan penerimaan gaji tidak full, menurunkan gaji, gaji tertunda, maupun pemutusan hubungan kerja sementara. Orang asing yang memasuki Indonesia dibatasi maupun turis domestic untuk mencegah penularan COVID-19, hal ini mengancam secara langsung pada keberlangsungan organisasi dan kinerja. Dalam konteks ini, job insecurity yang dialami karyawan hotel mungkin akan signifikan dalam menentukan bagaimana industry dapat pulih dan bertahan. Covid-19 telah memperburuk situasi ini, Job insecurity menyebar diantara karyawan dengan dua alasan, pertama perubahan organisasi menyebabkan job insecurity seperti PHK, perampingan dan merger. Kedua, ancaman yang memicu stress. (Shoss, 2017). Karyawan hotel mempunyai peran penting dalam memuaskan konsumen dengan positif, kepuasan pelanggan dan evaluasi kinerja sangat untuk dijaga. Perubahan lingkungan yang terjadi menimbulkan kecemasan untuk karyawan. Oleh karena itu, peneliti ingin mengetahui efek job insecurity pandemi mempengaruhi job engagement dan job performance.Penelitian ini dilakukan dengan metode kuantitatif. Populasi dalam penelitian ini adalah karyawan yang bekerja pada hotel berbintang di Semarang. Besar sampel penelitian ditentukan sebesar 100 karyawan dengan tingkat kesalahan 10%. Pengumpulan data mengunakan kuesioner secara daring menggunakan googleform dan wawancara.
Isolated Miliary Tuberculosis of Brain in an Immuno-Competent Patient, Presenting as Cerebellar Ataxia
Authors: Arora Adhip
Published: February 2022

We are reporting an unusual case of a 26-year-old immunocompetent patient of miliary tuberculosis of cerebellum with meningitis and lung involvement, presenting with ataxia without any evidence of systemic inflammation. Since, prognosis depends on correct diagnosis and timely treatment, recognition and prompt diagnosis are important for overall outcome.
First in the World Industrial Batch of Arctic Diesel Fuel with Application Temperature of up to Minus 65°С
Authors:   Slavneft-YANOS PJSC, Yaroslavl, Karpov N. V. , Vakhromov N. N. ,   Slavneft-YANOS PJSC, Yaroslavl, Dutlov E. V. ,   Slavneft-YANOS PJSC, Yaroslavl, Sharin E. A. ,   25 State Research Institute of Chemotology of the Ministry of Defense of the Russian Federation,, Sereda V. A. ,   25 State Research Institute of Chemotology of the Ministry of Defense of the Russian Federation,, Bubnov M. A. ,   Slavneft-YANOS PJSC, Yaroslavl, Gudkevich I. V. ,   Slavneft-YANOS PJSC, Yaroslavl, Kovalchuk S. S. ,   Slavneft-YANOS PJSC, Yaroslavl, Gritsenko A. I. ,   LLC “Gazprom VNIIGAZ”, Maksimov A. L. ,   LLC “Gazprom VNIIGAZ”, Rathkeen L. S. ,   AO “EKA”, Korolyov, Borisanov D. V. ,   Slavneft-YANOS PJSC, Yaroslavl
Published: February 2022

Until quite recently, Arctic diesel fuel was produced in accordance with GOST R 55475 with a maximum cold filter plugging point of up to minus 52°C using a depressant-dispersing additive. However, in the Arctic, the temperature drops to minus 60°C and below, and the use of depressant-dispersing additive provokes product stratification with a sharp deterioration in the properties of the lower layer. This limited the application of arctic diesel fuel in the Arctic. For such conditions, the Ministry of Defense of the Russian Federation developed its own standards for Arctic diesel fuel without the use of depressant-dispersing additives, and suggesting values not higher than minus 65°C for the cloud point, pour point and cold filter plugging point. An obstacle for obtaining a product with such properties is the difficulty of simultaneously providing the required cetane number and low temperature properties. This paper presents a method for obtaining Arctic diesel fuel with desired properties based on deeply isomerized diesel fractions. To implement the project, an analysis of the existing units at Slavneft-YANOS PJSC was carried out, and a chain of units for primary oil refining, hydrotreating 80 atm and isodewaxing was made. In the course of a number of experiments new causes of the onset of cold filter plugging point were discovered, which were explained by an increase in the diesel fuel viscosity at extremely low temperatures. To reduce the viscosity of the product, hydrocracked kerosene was added to the formula. In May 2020, permits were received from the Ministry of Defense of the Russian Federation, and in October 2021, for the first time in the Russian Federation and in the world, the first industrial batch of 3,000 tons was successfully produced.
Promising Formulations of Engine Oils with Nanodispersed Additives for Internal Combustion Engines
Authors:   Mirovaya Tekhnika LLC, Saratov, Safonov K. V. , Safonov V. V. ,   Saratov State Agrarian University named after N.I. Vavilov, Afonichev D. N. ,   Michurinsk State Agrarian University, Orobinskii V. I. ,   Michurinsk State Agrarian University, Ostrikov V. V. ,   All-Russian Scientific Research Institute for the Use of Machinery and Petroleum Products in Agriculture, Tambov,   Voronezh State Agrarian University named after Emperor Peter I
Published: February 2022

The paper presents research materials on the effect of oil additives on the wear of the main parts of the cylinder-piston group. It has been established that the addition of nanostructured metal elements to Lukoil 15W40 engine oil makes it possible to reduce the wear of cylinder liners by an average of 1.36 times.
Study of the Influence of the Composition and Structure of Complex Oxides Ni-Cr on the Upgrading of Heavy Oil in a Supercritical Aqueous Fluid
Authors:   Kazan National Research Technological University, Lakhova A. I. , Petrov S. M. ,   Kazan National Research Technological University, Bashkirtseva N. Yu. ,   Kazan National Research Technological University
Published: February 2022

The studies of synthesized oxides Ni–Cr of mixed phase composition were carried out. The relationship between the composition and structural properties of Ni–Cr double oxides on the ratio of Ni2+/Cr3+ cations in the synthesis of their precursors (hydroxides) has been determined. The products of conversion of heavy oil in the presence of Ni–Cr double oxides at a temperature of 380°C and a pressure of 22 MPa in an excess of hydrothermal fluid have been investigated. The influence of oxides on the change in the content of saturated, aromatic hydrocarbons, resins and asphaltenes was shown by the method of adsorption liquid chromatography.
Kinetic Investigations of Hydrodenitrogenation Reactions of Mixed Feedstock of a Catalytic Cracking Plant
Authors:   Samara State Technical University, Moiseev A. V. , Maximov N. M. ,   Samara State Technical University, Solmanov P. S. ,   Samara State Technical University, Tomina N. N. ,   Samara State Technical University, Eremina Yu. V. ,   Samara State Technical University, Tyshchenko V. A. ,   Samara State Technical University
Published: February 2022

In this work, kinetic features of the hydrodenitrogenation process of high-boiling mixed petroleum feedstock in a wide range of parameters on Ni6PMo12, Ni6PMo4W8, Ni6PMo6W6, Ni6PW12 catalysts and on industrial one were carried out. A kinetic model has been determined, parameters describing the process have been calculated, and the activity of catalysts in the hydrogenation reactions of polycyclic aromatic hydrocarbons has been investigated.
Hydrogenation of Carbon Monoxide on Composite Catalytic Systems Based on Nickel and Polyvinyl Alcohol
Authors:   A. V. Topchiev Institute of Petrochemical Synthesis RAS, Popandopulo M. V. ,   Gubkin University, Ivantsov M. I. ,   A. V. Topchiev Institute of Petrochemical Synthesis RAS, Kulikova M. V. ,   A. V. Topchiev Institute of Petrochemical Synthesis RAS, Zhagfarov F. G. ,   Gubkin University
Published: February 2022

The article considers the catalytic and physico-chemical properties of composite materials obtained by heat treatment of nickel nitrate immobilized on polyvinyl alcohol. The influence of the composite formation temperature on the phase composition of metal-containing and the particle size is studied. It is shown that the resulting composite material is an active catalyst for the hydrogenation of carbon monoxide without a pre-activation stage. The following synthesis parameters were achieved: the degree of carbon monoxide conversion under the conditions of CO catalytic hydrogenation process: CO conversion — 29%, CH4 yield — 28 g/m3 . Assumptions about the particle size effect on the activity of the synthesized composite and the effect of volume velocity on the parameters of the CO hydrogenation process are made.
Analysis of Diesel Fuels Properties of Various Origins in Order to Use Them as Feed for the Production of Hydrocarbon Base for Drilling Fluids
Authors:   Slavneft-YANOS PJSC, Karpov N. V. , Vakhromov N. N. ,   Slavneft-YANOS PJSC, Dutlov E. V. ,   Slavneft-YANOS PJSC, Bubnov M. A. ,   Slavneft-YANOS PJSC, Gudkevich I. V. ,   Slavneft-YANOS PJSC, Maximov A. L. ,   A. V. Topchiev Institute of Petrochemical Synthesis RAS, Gritsenko A. I. ,   LLC “Gazprom VNIIGAZ”, Rathkeen L. S. ,   AO “EKA”, Korolyov, Sharin E. A. ,   25 State Research Institute of Chemotology of the Ministry of Defense of the Russian Federation, Borisanov D. V. ,   Slavneft-YANOS PJSC
Published: February 2022

The advantages of straight-run diesel fuel hydrotreated at pressure of 80 atm on a nickel-molybdenum catalyst over hydrocracking diesel fuel at the use of isodewaxing process as a feedstock to obtain hydrocarbon base for drilling fluids. Based on the results of the laboratory assessment, a test run was carried out at process unit. It was possible to obtain a hydrocarbon base for drilling fluids at the dewaxing unit of the diesel fuel hydrotreatment unit in the amount of 340 tons/day (14 t/h) without compromising quality. The dewaxing unit is idle in the summer time due to the lack of demand for winter diesel fuel, so its use at this time significantly increases the production margin.
Composition of Hydrocarbons in Maltenes from Naphthenic Crude Oil after Cracking with WC/NI–CR Additive
Authors:   Institute of Petroleum Chemistry, SB of the Russian Academy of Sciences, Tomsk, Pevneva G. S. , Voronetskaya N. G. ,   Institute of Petroleum Chemistry, SB of the Russian Academy of Sciences, Tomsk, Sviridenko N. N. ,   Institute of Petroleum Chemistry, SB of the Russian Academy of Sciences, Tomsk
Published: February 2022

Using GCMS the composition of hydrocarbons in maltenes from heavy naphthenic crude oil (Usa oilfield) after cracking in the presence of WC/Ni–Cr additive and without it has been studied. Cracking of maltenes carried out at 450°С within 2 hours in isothermal mode. Using WC/Ni–Cr additive during cracking contributes to the deepening of the destruction reactions in hydrocarbons and resins. It is shown, the content of low-molecular alkanes С11–С19, alkylbenzenes С9–С10 increases essentially in the maltenes cracked with the additive while that of cyclohexanes and bicyclanes decreases, tri-, tetra- and pentacyclic saturated hydrocarbons destruct completely as compared with maltenes cracked without the additive. There are changes in the composition of naphthenic hydrocarbons. The reactions of condensation occur along with destruction reactions, leading to the formation of polyaromatic hydrocarbon.
Formation of С10–С14 Adamantanes from Petroleum Protoadamantanes
Authors:   Gubkin University, Gadzhiev G. A. , Giruts M. V. ,   Gubkin University, Vylekzhanina D. S. ,   Gubkin University, Gordadze G. N. ,   Gubkin University
Published: February 2022

In order to study the possibility of enriching jet fuels with diamond-type hydrocarbons to improve their physico-chemical and operational properties, a catalyse with aluminum bromide of narrow 10-degree fractions of marine oil in the range of 190–250°С was carried out. Catalysis products were selected at different times and analysed by chromatomass spectrometry. It is shown that during catalysis there is a complete disappearance of non-adamanthane hydrocarbons and "naphthene background" on mass chromatograms with m/z 135, 149, 163 and 177, with the formation of new, mainly thermodynamically weakly stable isomers of adamantanes, and in subsequent It was found that from the narrow fractions of oil 230–240 and 240–250°C, where there are no hydrocarbons of the series of adamantane series, hydrocarbons of the C12–C14 form from the "naphthene background". It is suggested that transalkylation is the reason for the formation of high-molecular adamantans from low-molecular ones.
Optimal Conditions for Simultaneous Reactions of Aromatics Hydration and Isomerization during Dewaxing of Diesel Fuel
Authors:   Slavneft-YANOS PJSC, Yaroslavl, Karpov N. V. , Vakhromov N. N. ,   Slavneft-YANOS PJSC, Yaroslavl, Dutlov E. V. ,   Slavneft-YANOS PJSC, Yaroslavl, Tihomirov D. N. ,   Slavneft-YANOS PJSC, Yaroslavl, Druzhinin A. A. ,   Slavneft-YANOS PJSC, Yaroslavl, Nizovtsev V. A. ,   SEI of Yaroslavl Region “Lyceum No. 86”, Yaroslavl, Rybakov E. V. ,   SEI of Yaroslavl Region “Lyceum No. 86”, Yaroslavl, Bubnov M. A. ,   Slavneft-YANOS PJSC, Yaroslavl, Gudkevich I. V. ,   Slavneft-YANOS PJSC, Yaroslavl, Gritsenko A. I. ,   LLC “Gazprom VNIIGAZ, Tarasov A. V. ,   Yaroslavl State Technical University, Maksimov A. L. ,   A.V. Topchiev Institute of Petrochemical Synthesis, RAS, Rathkeen L. S. ,   AO “EKA”, Korolyov, Sharin E. A. ,   25 State Research Institute of Chemotology of the Ministry of Defense of the Russian Federation, Borisanov D. V. . ,   Slavneft-YANOS PJSC, Yaroslavl
Published: February 2022

This paper presents research to determine optimal conditions for simultaneous reactions of dearomatization and hydrodewaxing to evaluate high margin production of low viscosity hydrocarbon base for drilling fluids at dewaxing section of unit LCH-24/7 without recycle. Influence of one of the key factors, namely temperature, on the course of reaction has been studied. This research has been performed with the use of platinum containing dewaxing catalyst at laboratory unit for the study of hydorprocesses. It has been determined that the key factor is temperature 280°С when hydrodewaxing reactions start to prevail over dearomatization reactions. In course of research the content value of aromatics compounds in diesel fuel has been reduced to level of 7%, which is the basis for further research to evaluate the influence of other parameters, such as pressure and volumetric feed rate.
Purification of Propylene from Micro-Impurities
Authors:   VNIIUS JS, Bazhirova N. G. , Korobkov F. A. ,   VNIIUS JS, Vildanov A. F. ,   VNIIUS JS, Mazgarov A.M. ,   VNIIUS JS
Published: February 2022

The adsorptive capacity of Selexsorb CDX and AZ-400 zeolites during purification of a model gas mixture from oxygen-and nitrogen-containing micro-impurities was studied. Under the selected conditions the studied zeolites have a high sorptive capacity for such micro-impurities as ethanol, ammonia, propionic aldehyde and acetaldehyde.
Investigation of the Interaction Between Depression Additives and Hydrocarbons, Which are Part of Straight-Run Diesel Fuels
Authors:   National Research Tomsk Polytechnic University, Bogdanov I. A. , Morozova Ya. P. ,   National Research Tomsk Polytechnic University, Altynov A. A. ,   National Research Tomsk Polytechnic University, Kirgina M. V. ,   National Research Tomsk Polytechnic University
Published: February 2022

The article investigates the influence of the hydrocarbon composition of various samples of straight-run diesel fuels on the depressant additives efficiency. During the study the characteristics and composition of straight-run diesel fuels of various origins were determined; blends of straight-run diesel fuel samples with depressant additives were prepared, their low-temperature properties were determined. It was found that the effectiveness of the depressant additives in relation to the pour point of diesel fuel increases with an increase in the content of paraffins in the fuel composition, a decrease in the content of aromatic hydrocarbons, an increase in the average number of aromatic rings in the molecule. The effectiveness of the depressant additives in relation to the cold filter plugging point of diesel fuel increases with a decrease in the content of paraffins in the diesel fuel, and an increase in the initial boiling point of fuel. The regularities of the influence of the composition of straight-run diesel fuels on the effectiveness of the depressant additives revealed in the study will make it possible to choose the most effective additives and select their optimal concentrations.
Optimization of the Synthesis of Cyclic Neopolyols by Aldol Condensation of Cyclic Ketones with Formaldehyde
Authors:   Yu. H. Mammadaliyev Institute of Petrochemical Processes of National Academy Sciences of Azerbaijan, Yusiphova L. M. , Gurbanov Н. N. ,   Yu. H. Mammadaliyev Institute of Petrochemical Processes of National Academy Sciences of Azerbaijan, Jafarov R. P. ,   Yu. H. Mammadaliyev Institute of Petrochemical Processes of National Academy Sciences of Azerbaijan
Published: February 2022

The regularities of the synthesis of cyclic neopolyols by aldol condensation of cyclic ketones with formaldehyde have been studied. To obtain the target product 2,2,6,6-tetramethylolcyclohexanol with the maximum yield, the influence of temperature, molar ratio of the starting components, amount of catalyst, pH of the medium was determined. Mathematical processing of the experimental data made it possible to obtain the partial dependence of the output parameter on each factor in the form of a second-order equation. A generalized equation for the dependence of the output optimization parameter on all input variables is compiled. The optimal reaction conditions for the production of 2,2,6,6-tetramethylolcyclohexanol have been determined.
Physico-Chemical Methods of Research and Use of Natural Aluminosilicate Catalysts Modified with Transition Metals
Authors:   Yu. H. Mammadaliyev Institute of Petrochemical Processes of National Academy Sciences of Azerbaijan of the National Academy of Sciences of Azerbaijan, Mukhtarova G. S. , Ibrahimov Y.J. ,   Yu. H. Mammadaliyev Institute of Petrochemical Processes of National Academy Sciences of Azerbaijan of the National Academy of Sciences of Azerbaijan,, Hasanova A. B. ,   Ganja branch of the Azerbaijan National Academy of Sciences, Ibrahimova Z. М. ,   Yu. H. Mammadaliyev Institute of Petrochemical Processes of National Academy Sciences of Azerbaijan of the National Academy of Sciences of Azerbaijan,
Published: February 2022

The article presents the main results of methods for modifying natural aluminosilicates (Az-4 and halloisite) with transition metals (Ni, Mo) using a CVD (Chemical Vapor Deposition) setup and physicochemical methods for studying the obtained catalysts. It was found that the elements Mo and Ni in the surface layers of the catalysts obtained as a result of the modification of both natural aluminosilicates by the ion exchange method were more distributed than the elements modified by the impregnation method. During the hydrocracking of fuel oil in the presence of aluminosilicate catalysts, 80-83% of the volume of light oil products (gasoline, diesel fractions) was obtained.
Quality Assessment of Base Oils Obtained by Regeneration Technology from Wasted Lubricants
Authors:   «HILL Corporation» LLC, Kutsev A. V.
Published: February 2022

The API 1509 standard contains a list of technological processes that can be used to obtain base oils. Base oils can also be obtained using the technology of multistage regeneration of wasted oils. The main requirement according to the classification of API standard 1509 is that the re-refined base oil must be free from harmful substances and contaminants that were formed during its previous use. There is no other information in the standard regarding the requirements for re-refined base oils. The article discusses various methods of assessing the quality of industrial batches of base oils of group I, obtained according to the licensed technology of the German company Fluid Solutions. The quality assessment was carried out both directly for base oils obtained using the regeneration technology, and for laboratory samples of market grade oils, the compositions of which included regenerated base oils.
The Use of Drilling Mud and Nanotechnogenic Petrochemical Raw Materials in the Production of Refractory Porous Aggregates Based on Liquid-Glass Compositions
Authors:   Samara state economic University, Abdrakhimov V. Z. , Abdrakhimova E. S. ,   Samara University (National Research University named after S. P. Korolev)
Published: February 2022

Efficient utilization of multi-tonnage oil sludge is one of the urgent environmental problems. The industry that produces construction materials has unlimited opportunities for the use of multi-tonnage waste. In this paper, it is shown that it is most expedient to use multi-tonnage waste from oil production-drilling sludge and petrochemical waste-spent catalyst in the production of porous aggregates whose thermal conductivity is not more than 0.25 W/m·deg. Developed on the basis of the above waste and liquid-glass compositions, compositions for the production of porous aggregates that have high compressive strength and softening coefficient, and at the same time the grade for the bulk density of products does not exceed M400.
Determination of Wax Appearance Temperature in Various Crude Oils
Authors:   LLC RN RDC, Miller V. К. , Ivanova L. V. ,   National University of Oil and Gas «Gubkin University», Mansur G. M. ,   National University of Oil and Gas «Gubkin University», Koshelev V. N. ,   National University of Oil and Gas «Gubkin University», Mkrtychan V. R. ,   National University of Oil and Gas «Gubkin University»
Published: February 2022

To predict the tendency of oil to form paraffin deposits there is applied the rheological research method, phase transitions of paraffins research in five various crude oils of the oil fields in Udmurtia and Syria. The wax appearance temperature (WAT) was determined based on the viscosity-temperature curves of the studied crude oils. The comparative analysis of the WAT values was conducted by the rheological method and the calculation method, based on ten different correlation equations. It is emphasized that the smallest indicator of the absolute deviation of the calculated WAT value from the experimental one was obtained for the correlation equations based on the content of solid paraffinic hydrocarbons. It was found that heavy resinous and highly resinous oils with a paraffin content of more than 5% were characterized by the highest values of WAT, which determines their closeness to paraffin saturation in reservoir conditions and a high tendency to form paraffin deposits.
Characteristics of Movement of Gas Inflow to Wells According to the Results of Hydrodynamic Studies
Authors:   Kazan (Volga Region) Federal University, Institute of Geology and Oil and Gas Technologies, Alfayyadh A. G. H.
Published: February 2022

This article provides an analysis of the characteristics of the movement of gas inflow in a porous medium. The theoretical part of the article allows one to imagine what parameters and factors affect the operation of gas wells. Also, the calculation of the rate of gas inflow to the wells, the calculation of the dynamics of gas production and reservoir pressure in the constant drawdown mode was carried out. Thus, according to the results of hydrodynamic studies, we learn that during gas sampling time, the flow rate decreases, that is, the amount of gas extracted from the reservoir for a certain period of time is equal to the change in gas reserves in the reservoir, since the reservoir is closed, then the reserves are limited and not replenished from outside and that with a change in the value of the radius of the well, the pressure at a given point in the formation changes over time, that is, the pressure will decrease.
Grammatical Cohesion in Argumentative Essays by International EAP Learners in New Zealand
Authors: Junina Ahmed Kamal
Published: February 2022

The challenges encountered by non-native English-speaking students in writing cohesive essays have been canvassed in scholarly research. However, cohesion problems in essays written by international English for Academic Purposes (EAP) learners in the New Zealand context do not appear to be addressed adequately. This may pose a challenge for educators when trying to unpack the issues these learners encounter in written discourse and how best to address such issues. Therefore, this paper aims to investigate grammatical cohesion in EAP learners' argumentative essays. The main instrument for this study was a sample of 37 argumentative essays written by international EAP learners at a tertiary institution in New Zealand. The study utilized AntConc software for analyzing instances of reference and conjunctions in the data. Frequencies of ellipsis and substitution were analyzed manually. The findings show that learners employed a variety of grammatical cohesive devices in their writing. The learners prominently used references and conjunctions. However, limited use of substitution and ellipsis was obvious in the essays, which seems to suggest that learners need further training on grammatical cohesive devices and how to employ them in written discourse.
Children Socio-emotional Development and Qualities of Sibling Relationship During COVID-19: Parents’ Perspective
Authors: Wibowo Rahmadina Syarafina , Nadiva Dhea , Oktaffiana  , Pramastyaningtyas Angela
Published: February 2022

Mobility restriction affected mesosystem social unit, including children's relationship with parents and surroundings. Declining outdoor activities and attention shifting might expose children to envy and jealousy stimuli. The current study proposed to explore the understanding, experience, and support that parents need to reinforce children's socio-emotional development. A qualitative study was conducted to analyze theoretical assumptions systematically. The method of the study was an interview, along with purposive sampling and snowball sampling. MAXQDA was used to analyze the data, underpinned with several processes, including intercoder agreement, code-recode, and validation of related sides. Thematic analysis showed 3 primary clusters and 2 secondary clusters, which indicated children and parents' responses. Nurturing emotional intelligence, warmth relationship, and playing are being the crucial frequency codes. The qualities of relationships worked dynamically in two ways simultaneously. The study reached a conclusion that the learning between children and parents can be supported by parental treatment of children's reactions and disputes, parental involvement, early contact in sibling relationships, childhood habits, and emotional intelligence teaching strategy.
Puncture vine (Tribulus Terrestris L.) in control of health and reproduction
Authors: Sirotkin AV , Kolesarova A
Published: February 2022

Tribulus terrestris, L. (puncture vine) have been used as a folk medicine for five thousands of years, but its targets, effects, their mechanisms and application requires further studies. This paper reviews the provenance, constituents and properties of Tribulus terrestris, L., its general physiological and health effects, as well as the currently available knowledge concerning its influence on male and female reproductive processes and their dysfunctions. Analysis of the available publications demonstrated the influence of Tribulus terrestris on a wide spectrum of targets and physiological processe and disorders. In particular, Tribulus terrestris can be a stimulator of male and female reproductive processes at the level of central nervous system, sexual behaviour, pituitary and gonadal hormones and their receptors, gonadal functions (including ovarian follicullogenesis and spermatogenesis), improvement of the quality and quantity of gametes (at least of sperm) and fecundity. This ability of puncture vine is applicable for the improvement of man’s sexual desire and sperm quality in vivo and in vitro, as well as of women’s libido, activation of women’s reproductive organs, fecundity, and treatment of infertility, especially that related to the polycystic ovarian syndrome.
Eye pupil – a window into central autonomic regulation via emotional/cognitive processing
Authors: Ferencová N , Višňovcová Z , Bona Olexová L , Tonhajzerová I
Published: February 2022

If the eyes are windows into the soul, then the pupils represent at least the gateway to the brain and can provide a unique insight into the human mind from several aspects. The changes in the pupil size primarily mediated by different lighting conditions are controlled by the autonomic nervous system regulated predominantly at the subcortical level. Specifically, parasympathetically-linked pupillary constriction is under the Edinger-Westphal nucleus control and sympathetically-mediated pupillary dilation is regulated from the posterior hypothalamic nuclei. However, the changes in the pupil size can be observed at resting state even under constant lighting, these pupillary changes are mediated by global arousal level as well as by various cognitive factors. In this context, autonomic pathways modulating changes in the pupil size in response to the different light levels can be influenced by multiple central descending inputs driving pupillary changes under steady lighting conditions. Moreover, as the pupillary response is involved in emotional (task-evoked pupillary dilation as an index of emotional arousal) and cognitive (task-evoked pupillary dilation as an index of cognitive workload) stimulation, it can be used to detect the impact of mutual subcortical and cortical structures (i.e. overlapping brain structures included in autonomic, emotional and cognitive regulation) on the pupillary innervation system. Thus, complex understanding of the baseline pupil size´ and pupillary dynamics´ mechanisms may provide an important insight into the central nervous system functioning pointing to the pupillometry as a promising tool in the clinical application.
BREAST MILK PERCEPTIONS OF DIFFERENT GENERATIONS OF ADULTS AND FACTORS AFFECTING THESE PERCEPTIONS
Authors: CAN Şeyda , AVÇİN Emel
Published: February 2022

The aim of the research was to examine the breast milk perceptions of adult individuals in generations X, Y, and Z and the factors affecting them. This descriptive research was conducted between May-June 2021. The sample group of the research consisted of 341 adult individuals over the age of 18 living in Turkey. "Information Form" and "Breast Milk Perception Scale for Adults" were used to collect data. The total average score adults received from the "Breast Milk Perception Scale for Adults" was determined as 115.17±22.59. A significant difference was found between the individuals in terms of sex, marital status, income status, presence of children, number of children, breast milk intake of children, being informed about breast milk and their breast milk perception levels (p<0.05). No statistically significant difference was found between the individuals who participated in the research in terms of their X, Y, and Z generation status and breast milk perception scale scores (p>0.05). Consequently, it was determined that the breast milk perceptions of the individuals participating in the research were above the average. It was found that individuals' sex, marital status, income status, presence of children, number of children that they feed their children with breast milk, that they are lectured about breast milk affected their perception of breast milk.
Lived Experience of Korean Immigrant Nurse Practitioners
Authors: Jun Angela , Sohn Sue-Kyung , Lee Jung-Ah
Published: February 2022

The impact that nurse practitioners make in the health care system has been increasingly visible. The number of nurse practitioners with ethnic minority backgrounds has been growing. However, while much is known about immigrant nurses, limited research has been conducted about immigrant nurse practitioners (NPs) who immigrated as an RN (registered nurses) and became aNP. The purpose of the study was to explore the lived experience of Korean immigrant nurse practitioners. Eight Korean immigrant nurse practitioners participated in this qualitative study that used the unstructured interview technique to collect data. Data were analyzed using Colaizzi's method of phenomenology. Six main themes are identified: motivation, challenges, support system, transition process, conflict, and satisfaction. All participants experienced challenges around English proficiency and visa status at the beginning of their life in the United States. They went through the transition process and overcame challenges successfully with support from various sources. They are currently very satisfied with how they could make a difference in patients’ life. The finding of this study generated qualitative evidence of ethnic minority immigrant nurse practitioners functioning as vital healthcare providers, which is an encouraging fact for the U.S. health care system, where diverse providers are in need.