bluuebunny/crossref_metadata_2025 huggingface dataset:
Pharmacotherapy for weight loss in adults with type 2 diabetes: a systematic review of randomised controlled trials
Authors: Coelho Claudia , Agius Rachel , Crane James , McGowan Barbara
Published: March 2021

Background: Clinically significant weight loss improves glycaemic control and cardiovascular disease risk in patients with type 2 diabetes (T2DM).Aim: To identify and assess the efficacy of medical treatments for weight loss in adults with T2DM.Methods: A systematic review was conducted of peer- reviewed literature between July 2004 and July 2020 via PubMed, Embase, Web of Science, medRxiv and Cochrane Central Register of Controlled Trials. Randomised controlled trials (RCTs) in English investigating medical treatments for weight loss in patients with T2DM were included. RCTs of pharmacotherapy withdrawn from the market were excluded. No minimum length of follow-up time was established. Outcomes of interest were changes from baseline in body weight (%), changes from baseline in HbA1c (%, mmol/mol) and proportion of patients who achieved ≥5% weight loss. Quality assessment was evaluated using the Jadad score.Results: Fifteen RCTs were included with a total of 4,207 participants with T2DM. Interventions included medications approved for obesity management (orlistat, liraglutide, naltrexone-bupropion and phentermine-topiramate) and other agents investigated for the primary purpose of weight loss (topiramate, metreleptin, dapagliflozin and exenatide) compared with placebo. The duration of the intervention varied from 12 to 56 weeks. Placebo-adjusted body weight loss ranged from 2.2% to 7.3%. Furthermore, 30.5–77.0% of patients achieved ≥5% weight loss. Placebo-adjusted change in glycated haemoglobin was 0.3–1.5% (3.3–16.4 mmol/mol).Conclusion: Current evidence demonstrates that pharmacotherapy for weight loss, except for leptin, is associated with weight loss and glycaemic improvement in patients with T2DM.
Validation of Clicking-type Noise and Vibration in Automotive HVAC System
Authors: Satar M.H.A. , A. Mazlan A. Z. , Hamdan M.H. , Md. Isa M.S. , Paiman M.A.R. , Abd. Ghapar M.Z.
Published: March 2021

In this study, the characteristics of clicking-type noise and vibration occurring in the automotive heating, ventilation and air conditional (HVAC) systems are investigated. A lab-scale model of HVAC system is developed, and validation is carried out with a vehicle system. A fixed blower speed of 1 (at an airflow of 2.53 m/s) with alternated air conditional (AC) was implied in this study. Three different sensors namely as tachometer, accelerometer, and microphone were used to measure and prove the existing noise in the HVAC system. The study inferred that the compressor contributed significantly to the total vibration and noise in the HVAC system. Other components such as AC pipe, evaporator, and thermal expansion valve (TXV) also contributed to a slight extent. The clicking noise was observed in the operating frequency range of 200 ~ 300 Hz. This noise and vibration issues are partly influenced by the running conditions of the AC and the effect was significant when the AC was turned on. The validation of the findings in the model shows a good agreement with the results obtained in the vehicle system, whereby the clicking noise and vibration can be observed at a similar frequency range.
Advances in Transcatheter Electrosurgery for Treating Valvular Heart Disease
Authors: Khan Jaffar M , Rogers Toby , Greenbaum Adam B , Babaliaros Vasilis C , Lisko John C , Yildirim Dursun Korel , Bruce Christopher G , Herzka Daniel A , Ratnayaka Kanishka , Lederman Robert J
Published: March 2021

Delivery of electrosurgery energy through catheters and guidewires enables interventionists to ‘cut’ through obstructive intravascular lesions or across cardiac chambers. A novel application of transcatheter electrosurgery is to make controlled lacerations in heart valve leaflets. This review describes three applications of transcatheter electrosurgery of aortic and mitral valve leaflets to enable transcatheter heart valve implantation. Intentional laceration of the anterior mitral leaflet to prevent left ventricular outflow obstruction splits and splays the anterior mitral valve and enables transcatheter mitral valve replacement without left ventricular outflow tract obstruction. Technique modifications and novel applications are described. Bioprosthetic or native aortic scallop intentional laceration to prevent iatrogenic coronary artery obstruction enables transcatheter aortic valve replacement without coronary artery obstruction. The technique is described and novel uses, especially in the setting of repeat transcatheter aortic valve replacement, are discussed. Finally, electrosurgical laceration and stabilization of mitral valve clip devices (ELASTA-Clip) enables transcatheter mitral valve replacement after MitraClip implantation. In conclusion, transcatheter electrosurgery is an important and versatile new tool in structural heart intervention.
To theory of Q-homeomorphisms in metric spaces
Authors: Salimov R.R.
Published: March 2021

We study the problem of continuation on boundary of the so-called Q-homeomorphisms between domains in metric spaces with measures. We obtain conditions for function Q(x) and domain boundary, under which any homeomorphism allows continuous continuation on boundary.
Inequalities of Bernstein type for splines in $L_2(\mathbb{R})$ space
Authors: Babenko V.F. , Spektor S.A.
Published: March 2021

We obtain sharp inequality of Bernstein type in $L_2(\mathbb{R})$ space for non-periodic spline functions of degree $m$, of minimal defect, with equidistant knots.
Estimates of approximation of elements of Hilbert space by subspaces spanned by given unit expansion
Authors: Babenko V.F. , Savela S.V.
Published: March 2021

The exact inequalities of the Jackson-Chernih type of the approximation in the Hilbert space are obtained.
On some inequalities in various metrics for differentiable functions on real line
Authors: Kofanov V.A.
Published: March 2021

We obtain the estimates of the seminorms of Weil of the functions on the real line and their derivatives with the help of local $L_p$-norms of the functions and uniform norms of their highest derivatives.
Preclinical studies on pleiotropic functions of erythropoietin on bone healing
Authors: Vasileva R. , Chaprazov Ts.
Published: March 2021

Erythropoietin (ЕPО) is a glycoprotein hormone, mainly known for its haemopoietic function. For orthopaedics, its pleiotropic effects – osteogenic and angiogenic potential, are of primary interest. The exact mechanism of EPO action is still unclear. The effects of EPO on bone healing were investigated through experiments with rats, mice, rabbits and pigs. Each of used models for experimental bone defects (calvarial models, long bone segmental defects, posterolateral spinal fusion and corticosteroid-induced femoral head osteonecrosis) has specific advantages and flaws. Obtaining specific and correct results is largely dependent on the used model. The brief evaluation of models could serve for standardisation of preclinical studies on bone regeneration.
New records of Orthalicoidea land snail species for the state of Minas Gerais, southeastern Brazil (Gastropoda, Stylommatophora)
Authors: Salvador Rodrigo Brincalepe , Simone Luiz Ricardo L.
Published: March 2021

New collection efforts in the limestone caves of Parque Nacional Cavernas do Peruaçu, Minas Gerais state, Brazil, has brought to light specimens belonging to three orthalicoid land snail species previously unrecorded from that state: Kora nigra Simone, 2015 and Kora rupestris Salvador & Simone, 2016 (Bulimulidae), and Leiostracus subtuszonatus (Pilsbry, 1899) (Simpulopsidae). All the above species were previously known from very restricted areas or just from their type locality. A possible record of Streptartemon aff. cookeanus (F. Baker, 1914) (Streptaxidae) is also reported herein.
How Joseph Fowler Read his Hebrew Bible
Authors: Hardy John Christopher
Published: March 2021

How did a work-a-day Victorian Hebraist read the Hebrew Bible? Suggestive information on the subject is found in the unpublished memoirs of Canon Dr Joseph Thomas Fowler (1833–1924), Durham Hebraist and antiquarian. Interesting as an example of contemporary devotional practice among Durham-based and Durham-trained Anglican clergy, Fowler’s Hebrew Bible reading habit also illustrates the informal aspect of his working relationships with colleagues in the fledgling university of Durham. This article offers, too, a frame of reference, by exploring Fowler’s biography, his Durham undergraduate career (1858–1861), and his work as university Hebrew lecturer for almost half a century (1871–1917). Incidental light is shed on the ecclesiastical ethos, the staff, the curriculum, and the pedagogy of Durham University in the mid-nineteenth century.
NEWS DIGEST
Authors: Editorial Article
Published: March 2021

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Attempts to Solve the Personnel Problem in the First Years of Creation of the Soviet Financial and Credit System in the Irkutsk Province
Authors:   Irkutsk State University, Shaherov Vadim
Published: March 2021

The article provides material on the formation of the Soviet financial system in the 1920s. One of the main problems of this period was the shortage of qualified financial and banking specialists. The current situation required real changes in organizational and personnel work. Much attention was paid to strengthening the managerial staff of party members and sympathizers. The article on the example of the Irkutsk province reveals the attempts of the Soviet authorities to solve the personnel issue and optimize the work of financial and credit structures.
Grain Collection and Food Situation in West Siberian Rural in 1930s
Authors:   Institute of History, Siberian Branch of the Russian Academy of Science, Laperdin Viacheslav
Published: March 2021

The article discusses changes in grain collection system in 1930s and related problem of food security of rural population using the example of West Siberian region. Author shows how food and seed assistance was provided to regions. Due to crop failures annually affecting certain regions, as well as excessive grain exemptions, difficult food situation continued throughout the decade. The existing food security system was supposed to help avoid a recurrence of massive famine of 1931–1933.
New Trends in the Development of Handicraft Industry in Irkutsk Province in the Second Half of the 1920s
Authors:   East-Siberian Economics and Law Institute, Semina Shezhana
Published: March 2021

The article highlights trends in the development of handicraft production in the conditions of recognition of market relations, mechanisms of socio-economic incentives to cooperative forms of Association, difficulties of transition of handicraft industry to cooperation, results and results of socio-economic development of handicraft production by the end of the 1920s.
The Role of Trade Infrastructure of the Consumer Market in Improving the Quality of Life of the Population of the Irkutsk Region
Authors:   Baikal State University, Fedotov Andrey ,   Baikal State University, Schepina Svetlana ,   Baikal State University
Published: March 2021

One of the fundamental indicators that characterize the state of the socio-economic situation in the region is the quality of life of the population. To this end, it is necessary to analyze and evaluate the volume of consumption of goods per capita, as well as the logistics component of the development of the consumer market. The article considers the impact of the trade infrastructure of the consumer market and its constituent elements on the quality of life of the population of the Irkutsk region. The analysis of the main factors affecting the standard of living of the population is given. Ways to improve the quality of life in the region are proposed.
Crimes of the Chinese in the Mountain Mines of Eastern Siberia and the Far East at the Turn of the Nineteenth and Twentieth Centuries
Authors:   East-Siberian institute of the Ministry of Internal Affairs, Belozercev Sergey ,   Baikal State University
Published: March 2021

In the late nineteenth and early twentieth centuries. Chinese subjects worked in the mountain gold mines of Siberia and the Far East. According to historical evidence, part of the gold mined by Chinese workers was stolen, smelted, and smuggled to China. The smuggling of gold across the Russian-Chinese border provoked the growth of serious and especially serious crimes. Chinese miners were hunted by Chinese and Russian bandits who robbed and killed workers.
«S7 Airlines»: How a Private Company Can Survive Among the State Competitors
Authors:   Irkutsk branch of MSTU CA, Volosov Evgeny
Published: March 2021

The article is dedicated to the business features of the biggest private Russian airline company — «S7 AIRLINES». The author analyses the history of its formation and development in the 1990s-in the beginning of 2000s, its competitive advantages in the past and nowadays. A special attention is given to the strategy of «S7 AIRLINES» in terms of optimization of financial and production activities and diversification of its business projects.
Historical and Mongolian Studies at the Baikal State University (1940s–2000s)
Authors:   Baikal State University, Kozyrskaya Irina , Kuzmin Yuriy ,   Baikal State University
Published: March 2021

The main data on the study of the Mongolia history of the twentieth century at the Baikal state University is presented. A review of the historical studiesof the University specialists in Mongolian studies: I.A. Sorokovikov, B.S. Sanzhiev, K.L. Malakshanov, Z.T. Tagarov is shown. The main information about Russian researchers of the new and cotemporary history of Mongolia and their brief creative biographies are presented.
Primary Development of Siberia on the Conditions State-Private Partnership
Authors:   Intellectual Business Club “Baikal strategies”, Ischenko Roman , Anufriev Alexander ,   Irkutsk State University, Petrov Alexey ,   Alliance of Young Scientists
Published: March 2021

The article explores the main stages of public-private partnership in the process of economic development of Siberia. Attention is drawn to the complementarity and at the same time the inconsistency of state and private economic entities of the vast Siberian region. This partnership was terminated in the process of eliminating the new economic policy in the 1920s.
The Formation of Ukrainian Population in the Altai Okrug During the Resettlements of 1865–1917
Authors:   Altai State Pedagogical University (Barnaul, Russian Federation), Lyulya Natalya V.
Published: March 2021

This article aims to explore the resettlement and formation of the Ukrainian population in Altai in 1865–1917 from a complex historical-geographic point of view. For achieving this aim, the following objectives were set: to reveal the main reasons of Ukrainian population’s migration mobility in traditional places of their living; to identify factors influencing their choice of settlement and formation of settlements in the new territory; to highlight the stages of settlement; to map zones of settlement of Ukrainians in the territory of Russian Altai. The source base of the research consists of legislative acts, statistical data from the State Archive of Altai Krai. Of special significance are accounts on the directions, general outputs and activities of the Resettlement Department during Stolypin’s agrarian reform, and periodicals. A specific and complementing group of sources is the fieldwork data collected by the author and other staff of the Oral History and Ethnography Center at Altai State Pedagogical University in Altai Krai in areas of Ukrainian settlement (Romanovsky, Volchikhinsky, Pankrushikhinsky, Egoryevsky, Krutikhinsky, Krasnogorsky, Rodinsky Districts) and partially in Qarasouk District in Novosobirsk Oblast; more than 120 interviews in total. The analysis of the sources allowed determining and describing the main factors of the Ukrainian population’s mass resettlement to Siberia, particularly to Altai, in the given time frame. The objective factors were the shortage of land for cultivation caused by the crisis of existing land usage, the rapid increase of land-poor peasants, the worsening of peasants’ material stand in Ukrainian regions. The subjective factors were the construction of railways, the introduction of the system of medical and food assistance for resettlers on their way to new locations, rumors about free land that made peasants leave their homeland and migrate to new non-cultivated territories. The Ukrainian resettlement to Altai may be divided into three main stages: 1865–1888, 1889–1905, 1906–1917, taking into account the specificity of each stage and mapping the main zones of the Ukrainian resettlement. The zones were allocated based on the existence of the resettlers’ culture with sustained intra-ethnic connections, with the preserved (in some degree) historical self-consciousness (the nuclear zone is Rodinsky, Romanovsky, Blagoveshshensky and Kulundinsky Districts), and the gradual extinction of ethnicity, oblivion and loss of ethnic identity (the periphery is Aleysky, Pospelikhinsky, Novichikhinsky, Egoryevsky, Rubtsovsky, Mamontovsky, Pankrushikhinsky, Krutikhinsky, Krasnogorsky, Topchikhinsky Districts).
The Problem of Developing Cultural Self-Identity in Adults Learning a Foreign Language
Authors:   Nizhny Novgorod Dobrolyubov State Linguistic University (Nizhny Novgorod, Russian Federation), Maliutina Elena A. , Oberemko Olga G. ,   Nizhny Novgorod Dobrolyubov State Linguistic University (Nizhny Novgorod, Russian Federation)
Published: March 2021

The article deals with the problem of cultural identity in mastering a foreign language by adult students during the lifelong learning process. It reveals the meaning of the terms “self-identity”, “self-identification”, “cultural identification”. The problems of forming students’ intercultural competence, a deep view of their native culture, and awareness of their own ethno-cultural identity are discussed. The article reveals the potential of the discipline “Foreign Language” for the development of cultural identity, defines the role of linguistic education in enriching the individual picture of the world of students in the comparative context of different cultures. Recommendations on the organization of the pedagogical process in line with the current trends of the Federal Project “Education” are offered. The article highlights the stages of teaching foreign languages within the framework of the intercultural paradigm. According to the authors, cognitive-intellectual, emotional and behavioral components should be included in the educational process aimed at developing cultural self-identity. The authors consider the development of cultural self-identity of adults as a basic principle of continuous self-education. For the purpose of its practical implementation, cross-cultural trainings are used, namely, the creation of communicative situations, role-playing game, webinar, coworking and project. The development of distance education makes it possible to successfully implement webinars in the educational process, which make it possible to reach a wide audience and attract native speakers more easily. The co-working technology helps to create a creative atmosphere, quickly helps participants establish contact and establish friendships. The project activity allows one to thoroughly work out and analyze a specific task, search for conditions and methods aimed at achieving a practical result. The authors conducted experimental training in two blocks at Nizhny Novgorod Dobrolyubov State Linguistic University and OJSC “GAZ” in order to test the possibility of using various cross-cultural trainings for the formation and development of self-identity of adults when they master a foreign language. The results were evaluated by tests on the skills and abilities of cross-cultural communication, as well as a questionnaire of the audience’s evaluation of their ability to enter into intercultural interaction and develop self-identity. Thus, the authors come to the conclusion that mastering a foreign language from the point of view of the development of cultural identity of adults should be built on a contrast-comparative basis using various cross-cultural trainings that include materials of a comparative nature.
Prospects for Using a Typological Approach in the Theory and Practice of Personality Modeling: Forensic and Criminal Procedural Aspects
Authors:   Tomsk State University (Tomsk, Russian Federation), Vedernikov Nikolay T. , Yuan Vladimir L. ,   West-Siberian Branch of the Russian State University of Justice (Tomsk, Russian Federation)
Published: March 2021

The article reveals a complex of problems of using the method of biographical analysis in studies of the personality of the accused. The range of problems involves criminal, criminal procedure, tactical and criminalistic aspects. The object of the research was the prospects for using the typological approach in the theory and practice of forensic modeling of personality. The study is based on the following general scientific methods: analysis, synthesis, system-structural. The study also employs the following specific scientific methods: biographical analysis, statistical analysis, expert assessment. The following conclusions are made in the article. The accentuated type is determined primarily genetically, the accused acquires it from birth. The type determines the form of adaptation in the environment and in society. The biological parameters of the personality of the accused are closely related to the character accentuation. The latter best manifests itself at the stage of direct investigative actions, including their repeated conduct, and determines the effectiveness of methods of psychological influence. The stratum the accused belongs to is determined by society: growing up, the accused socializes and gains access to certain social clusters, which in total characterize the stratum and determine the social connections and personal potential of the accused. The social characteristics of the personality of the accused are closely related to the social stratum the accused belongs to. The stratum best manifests itself at the preparatory stages of investigative actions and determines the range of sources of information about the accused. The psychological attitude is due to adaptation in the process of growing up; it is closely related to the mechanisms of mental defense and is a source of motivation for all actions, decisions and choices throughout life. Individual psychological personality traits are closely related to the psychological attitude and mechanisms of mental defense. They best manifest themselves at the initial stage of the investigative action and determine the specifics of establishing psychological contact during the first interrogation. Despite the fact that the division of all biographical information about the personality of the accused is rather conditional and the use of three typologies at the level of the model of the personality of the accused is equally conditional, the use of at least this number of typologies seems reasonable at the initial stage of research at this level.
The Origin of Certain Operational Search Terms (A Historical-Etymological Approach)
Authors:   Russian Technological University (MIREA) (Moscow, Russian Federation), Elinsky Valery I. , Zhirov Ruslan M. ,   Kabardino-Balkarian State University named after H.M. Berbekov (Nalchik, Russian Federation), Fedorov Roman V. ,   Russian Technological University (MIREA) (Moscow, Russian Federation)
Published: March 2021

The aim of the research was to study the problem of the formation of the operational search language in the aspect of the development of its terminological system (in the diachronic aspect, with the analysis of lexical and semantic relations). The aim determined the choice of research methods and techniques. The selected material (more than 200 sources, including archival ones) was analyzed using a descriptive method (including the selection, description and systematization of language material); a comparativehistorical method, which allowed tracing the semantic development of operational search terms, determining the source of borrowings of the analyzed words; a contextual method based on “reading” into the text and comparing homogeneous texts; elements of word-formation analysis; an etymological method, which helped to understand the semantic development of words more deeply, to determine the source of borrowings in the studied sphere. An attempt was made to identify factors that helped to consolidate a term in the language of operational-search activities. As a result of the research, the authors (1) identified and described the thematic groups of the analyzed operational search terms, characterized the systemic relations within these groups, and (2) determined the genetic sources of the key terms and ways of their semantic transformation in the operational search sphere. The authors also attempted to identify factors that led to the emergence, consolidation and development of a certain term in the operational search (criminal investigation) language. Etymological excursions in the consideration of certain terms were used as an additional way for a deeper understanding of their semantics and structure. The leading method in the study of this problem is the provision of philosophy that every phenomenon, including language, must be considered in its historical development. The theoretical significance and practical value of this work lies in its possible application in the further study of operational search language problems, in the solving of issues of selection and presentation of certain terms in operational search dictionaries, in the teaching of the Operational-Search Activities course.
PELAKSANAAN KEAMANAN, KESELAMATAN, DAN KEAMANAN KERJA (K3) DI KATERING SERVICE KOTA BANDUNG
Authors: Rahmawati Ruly , Juwaedah Ade , Setiawati Tati
Published: March 2021

Peluang terjadinya kecelakaan kerja di industri sangatlah besar. Salah satu upaya pencegahan preventif yang bisa dilakukan ialah dengan melaksanakan program K3. Semakin baik pelaksanaan program K3 yang dimiliki suatu usaha, maka akan semakin baik pula mutu kerja karyawan dan budaya kerja yang tercipta. Namun berdasarkan hasil pengamatan, terdapat suatu industri yang belum melaksanakan program K3 secara optimal. Hal tersebut dapat membuka potensi terjadinya kecelakaan kerja yang dapat merugikan dua belah pihak yaitu, pekerja dan pemilik usaha. Tujuan umum dalam penelitian ini ialah untuk memperoleh gambaran tentang pelaksanaan kesehatan, keselamatan, dan keamanan kerja (K3) di katering tersebut. Metode penelitian yang dilakukan ialah deskriptif dengan pendekatan kualitatif. Lokasi penelitian dilakukan di salah satu katering yang cukup terkenal di Kota Bandung. Secara keseluruhan, hasil penelitian menunjukan bahwa pelaksanaan K3 pada proses katering ini termasuk dalam kategori cukup dilaksanakan. Implikasi yang timbul dari hasil penelitian ini ialah jika pelaksanaan K3 dalam suatu industri tergolong baik, maka peluang terjadinya kecelakaan kerja akan berkurang sehingga proses kerja yang tercipta akan menjamin keselamatan dan keamanan bagi pekerja dan lingkungan.
Sampul Depan
Authors: Nurhayati Ai
Published: March 2021

Puji dan syukur kami panjatkan ke Hadirat Allah SWT, karena berkat Rahmat dan Hidayah-Nya kami dapat menerbitkan jurnal di bidang pendidikan, gizi, dan kuliner Tata Boga. Jurnal ini disusun sebagai wujud usaha program studi pendidikan tata boga  untuk mempublikasikan karya ilmiah mahasiswa maupun dosen di bidang pendidikan, gizi, dan kuliner Tata Boga secara online. Usaha ini dilakukan berdasarkan pada surat edaran dari Dirjen DIKTI No. 2050/E/T/2011 tentang kebijakan unggah karya ilmiah dan jurnal. Kebijakan tersebut kemudian direalisasikan oleh UPI melalui kebijakan dalam bentuk program pengembangan jurnal setiap departemen dan program studi di lingkungan UPI.Jurnal ini diberi nama Media Pendidikan, Gizi, dan Kuliner. Jurnal ini akan terbit secara berkala dua kali dalam setahun, yaitu setiap bulan November dan April. Pada bulan April 2020 ini merupakan jurnal terbitan volume kesembilan dan nomor satu.Kami mengucapkan banyak terima kasih kepada semua pihak yang telah membantu terbitnya jurnal ini. Selain itu, kami pun mengucapkan terima kasih kepada para kontributor yang telah mengirimkan naskah artikel hasil penelitiannya. Semoga jurnal ini dapat terus terbit secara berkala dan memberikan sumbangan pada dunia keilmuan dan perkembangan teknologi di Indonesia.
Monitoring heavy metal contamination levels and microbiological pollution in seawater of Agadir coastal zones
Authors: Bazzi Illyass , Mouaden Khadija El , Chaouay Aicha , Addi Abdelaziz Ait , Hamdani Mohamed , Issami Souad El , Hilali Mustapha , Hammouti Belkheir , Abbiche Khalid , Salghi Rachid
Published: March 2021

The objective of this study was to monitor the bacteriological contamination of the seawater of the marine fisheries of the coastal Agadir, Morocco. The study was focused on the diagnosis on the pollution in heavy metals, such as cadmium, lead, and mercury in five zones: the port of Imi Ouaddar fish boarding (zone Z1), the old port of Agadir (zones Z2 and Z3), the port of Agadir Marina (zone Z4), and the estuary of Oued Souss (zone Z5). The analyses were done by testing physicochemical parameters (such as pH, temperature, dissolved oxygen, salinity and conductivity) as well as microbiological and atomic adsorption analyses. The experimental results showed that the values of the physicochemical parameters were almost the same in all zones, while the microbial conditions were different, in which this is due to the existence of heavy metals. The more heavy metal concentrations affected the condition of microbes in the sea water, confirmed by the number of Escherichia coli. This study demonstrated the importance of controlling concentration of heavy metals for better sustainability of environment.
Toxic heavy metals removal using a hydroxyapatite and hydroxyethyl cellulose modified with a new Gum Arabic
Authors: Errich A , Azzaoui K , Mejdoubi E , Hammouti B , Abidi N , Akartasse N , Benidire L , Hajjaji S EL , Sabbahi R , Lamhamdi A
Published: March 2021

The objective of this work was to develop a process that allows the synthesis of an apatitic material of controlled composition and morphology, which could be used for medical and environmental applications. The adsorbent was synthesized, and characterized using scanning electron microscopy, nuclear magnetic resonance, Thermal analysis and other techniques, Atomic Force Microscopy, X-ray photoelectron spectroscopy and Total organic carbon. Different experimental parameters such as the effect of the amount of adsorbent, solution pH and temperatures and contact times were studied. Pseudo-order kinetics models were studied, and our data followed a pseudo second order. Experimental data were analyzed for both Langmuir and Freundlich models and the data fitted well with the Langmuir isotherm model. To understand the mechanism of adsorption, thermodynamic parameters like standard enthalpy, standard Gibbs free energy, and standard entropy were studied. The study indicated that the process is spontaneous, exothermic in nature and follow physisorption mechanisms. The novelty of this study showed surface of composite based of hydroxyapatite has the ability to highlight the surface designed for efficient removal of Cu2+ and Zn2+ ions, from aqueous solutions more than other studies.
Full-scale tests and application of NPGM emulsion explosive at ALROSA
Authors: Bondarenko I. F. , Nikitin R. Ya. , Zyryanov I. V.
Published: March 2021

ALROSA performs blasting operations mainly using explosives manufactured on the spot. Considering modern trends of using local manufacture explosives, Company’s experience of application of emulsion explosives, as well as prompt introduction of technological innovations, novel process solutions are utilized in manufacture and use of emulsion explosives. To this effect, Udachny Mining and Processing Plant constructed and commissioned a plant to manufacture non-explosive components for emulsion explosives within the Plant’s infrastructure area. Emulsion explosives enable blasting in open pit and underground mines which are assumed hazardous in terms of oil and gas shows. Within the framework of technical upgrading at MMLT-500-PR Plant, the investment project on construction and commissioning of a modular production line to manufacture packaged emulsion explosives has been implemented. The field trials of NPGM grade emulsion explosive has proved the economic and production efficiency of blasting using this explosive in open pit and underground mining. This article presents the results of testing and application of NPGM emulsion explosive during blasting in open pit and underground mines of ALROSA. The outcomes of pilot explosions using this type explosive as the main borehole and chain charges, as well as intermediate detonators in full-scale conditions of an underground mine and in an open pit are described. The proposed technology features higher operational efficiency and is applicable in various geotechnical conditions of mineral mining.
Technical and economic indicators of a slurry tailings hydrotransport system when replacing steel slurry lines with polyurethane-coated slurry lines
Authors: Aleksandrov V. I. , Sharkovskiy D. O. , Ponomarev S. V.
Published: March 2021

The hydrotransport system of Andrei Varichev Mikhailovsky GOK JSC used for iron ore processing tailings was studied with the aim of establishing its performance when using slurry pipelines with and without polyurethane coatings of their internal surfaces under mass concentration variations of 10 to 70 %. It has been established that the use of internal polyurethane coatings significantly reduces the specific head losses in hydraulic transportation of thickened slurry tailings for iron ore processing tailings. However, the technical and economic calculations performed failed to confirm the economic efficiency of their application for the slurry pipelines of the tailings facility hydrotransport system of Mikhailovsky GOK at any slurry thickening values, due to the significant payback period of capital investments caused by the relatively high current cost of polyurethanecoated pipelines. At the same time, a significant reduction (almost by a factor of four, provided that the current production volumes are maintained) in hydrotransport (energy) costs and maintenance costs of pressure slurry pipelines were identified for a transition to slurry tailings thickening to 50 % solids (excluding the capital and operating costs for the thickening system, reconstruction of the slurry pumping stations and additional measures for the distribution of a thicker slurry at the tailings storage facility). It is proposed to use the results obtained in the reconstruction of the slurry tailings hydrotransport system at the tailings facility of Mikhailovsky GOK with a conversion to hydraulic transportation of bulk concentration tailings thickened to 50 % in ∅820 mm slurry pipelines.
A study of gold ore for processability by gravity separation techniques
Authors: Fedotov P. K. , Fedotov K. V. , Burdonov A. E. , Senchenko A. E.
Published: March 2021

Today’s concentrators deal with a lot of gold deposits comprising smaller ore bodies, having low concentrations of the metal and situated in remote areas. The cost of detailed exploration and a full-fledged processability study considering the time and labour required may appear to exceed the cost of metal recovered from a deposit or a particular ore body. This paper describes some approaches to examining the gold ores mined at such deposits for processability and to developing gravity separation processes, which help save the time and cost of research without affecting the quality of resultant data. This research relied on the GRG test developed by Knelson in Canada, as well as a stage test developed by Institute TOMS in Russia (designed to determine optimum grinding size and number of processing stages). A simulation study was conducted to understand the recovery of gold during the grinding cycle (Stage 1) and to examine the Stage 2 process in a KC-CVD concentrator including concentrate refinement. The authors determined the distribution size of the feed material for each GRG test stage, documented the total percentage of gold recoverable by gravity separation as a function of the ore size, and established how the ore size and the KC-CVD concentrate output influence the gold recovery. This research study resulted in a process flow chart indicating the concentration performance based on gravity separation techniques.
Understanding the zinc discharge from sodium sulphate solution in the presence of surfactants
Authors: Kozlov P. A. , Kolesnikov A. V. , Nesmelov V. Yu.
Published: March 2021

This paper aims to understand the effect of surfactants on zinc discharge in sulphate solutions on a solid electrode and to collect new experimental data that would give a deeper insight into the processes involved in industrial electrolysis. Anionic and cationic coagulants (flocculants) and an anionic frother were used as surfactants. Electrolysis was conducted in the potential region of –1050 to –1250 mV (Ag/АgCl) in stationary and dynamic conditions in sodium sulphate solution under intensive stirring. The authors obtained comparative data on the zinc discharge current in electrolyte with and without frother at the scan velocities of 2 to 100 mV/sec. It is noted that at higher scan velocities (>10–20 mV/sec) and in the initial electrolysis phase the zinc discharge process develops in a mixed mode. In this case, as the study showed, the positive effect of the frother on zinc discharge is most distinguished. A reaction order was designed based on zinc ion with four potentials to prove that the zinc electrowinning process develops in a mixed mode. It is shown that the addition of frother raises the reaction order from 1.2 to 1.5, which is attributed to a larger effective cathode surface area. The data obtained in a galvanostatic mode under intensive stirring conditions indicate that, at the current density of 1.7 mA/cm2, the electrode polarization is 1.6 times lower in the presence of cationic coagulant and almost 3 times lower in the presence of anionic coagulant. The data given in this paper are also indicative of a changing electrolysis mode. Under stirring, a transition is observed from a diffusion mode of zinc ion reduction to a mixed one. The experimental data obtained under intensive stirring conditions in sodium sulphate solution with frother, as well as anionic and cationic coagulants are in line with the theory of electrochemical processes.
Un acercamiento al soma en los textos del R̥gveda
Authors: García Trabazo José Virgilio
Published: March 2021

El soma es uno de los elementos centrales del ritual védico. Su definición en términos de ‘bebida sagrada’ o ‘bebida divinizada’ no agota en absoluto el enorme abanico de connotaciones míticas, ideológicas y religiosas que testimonia su uso en los textos del R̥gveda. En el presente estudio —que toma como base la excelente exposición de A. Hillebrandt (1927)— ofrecemos un acercamiento filológico actualizado a sus diversos valores y funciones en el ritual, integrando en un panorama de conjunto las más valiosas aportaciones de la investigación. Tras una introducción (§ 1) en la que se expone la etimología y un esquema mitológico general, la estructura expositiva parte de los datos más concretos que contribuyen en los textos a la identificación de la planta (§ 2), para exponer después, en un orden creciente de abstracción, los elementos que configuran el ritual preparatorio y la ofrenda del soma (§ 3); el apartado final trata de sistematizar la compleja trama de relaciones mitológico-poéticas que culminan en la exaltación ideológico-sacral del soma como ‘rey’ (§ 4).
Penegakan Hukum Pemalsuan Surat Disebabkan Penyerobotan Hak Atas Tanah
Authors: Sari Fatika , Widowaty Yeni , Suryono Leli Joko
Published: March 2021

Hak penguasaan atas tanah dapat dibuktikan oleh sertipikat yang berlaku sebagai alat bukti kuat mengenai data fisik dan yuridis yang dimuat didalamnya. Bukti kepemilikan hak atas tanah ini sering menimbulkan sengketa yang menimbulkan perkara penyerobotan. Penyerobotan terjadi karena tindak pemalsuan surat. Pemalsuan surat sendiri merupakan salah satu tindak pidana yang di atur dalam Pasal 263 ayat (2) KUHP. Tulisan ini akan menjelaskan lebih lanjut tentang penegakan hukum pidana pemalsuan surat hak atas tanah yang disebabkan karena penyerobotan hak atas tanah. Penelitian ini menggunakan metode penelitian yuridis empiris dengan pendekatan kualitatif dengan sumber data primer dan sekunder. Hasil penelitian di temukan bahwa penegakan hukum pidana yang penulis analisis menggunakan Pasal 263 ayat (1) dan ayat (2) yang mencantumkan hukuman atau saksi paling lama enam tahun penjara. Adapun sanksi pidana penjara selama sepuluh bulan dijatuhkan terhadap terdakwa Muhardin Als Muhar sesuai dengan putusan nomor 374/Pid.B/2019/PN. Bgl. Sedangkan terdakwa Abdul Sanapudin  di bebaskandari semua dakwaan sesuai dengan Putusan Nomor 424/Pid.B/2018/PN.Bgl
Factores de mortalidad en prematuros menores de 34 semanas de gestación
Authors: Martinez Socorro Mendez , Cano Vázquez Elba Nelly , Nogales Delfín Itzel , Valdez Cabrera Celia , Monroy Azuara Marianne Gisselle , Arciga Vázquez Graciela Sideny
Published: March 2021

OBJETIVO: Determinar los factores asociados con mortalidad en recién nacidos prematuros iguales o menores de 34 semanas de gestación.MATERIALES Y MÉTODOS: Estudio de cohorte, retrospectivo, efectuado en recién nacidos prematuros, iguales o menores de 34 semanas de gestación y peso de ±1500 g ingresados a cuidados intensivos neonatales. Se revisaron: edad gestacional, sexo, peso, Apgar al minuto y 5 minutos, puntaje en la escala CRIB II, reanimación, tipo de ventilación; variables maternas: edad, control prenatal, enfermedades durante el embarazo, administración de corticosteroides prenatales y la mortalidad neonatal. Se utilizó estadística descriptiva y se determinó el riesgo relativo, con IC95%.RESULTADOS: La mortalidad global fue de 19.1% a 7 días de vida extrauterina, 55.5% correspondió al género femenino; el peso promedio fue 771.1 ± 189 g, el 88.8% correspondió a prematuros extremos. El Apgar al minuto de vida fue de 7 a 10 en el 25.5%, y a los 5 minutos fue menor de 7, también en 25%. La mortalidad aumentó con el puntaje de CRIB >10. La única variable de riesgo fue el puntaje de CRIB II. Solo el puntaje de CRIB II mayor de 10, que correspondió a 18.8, se asoció con mortalidad.CONCLUSIONES: La mortalidad es inversamente proporcional al peso y la edad gestacional. El puntaje de CRIB II es un indicador oportuno para identificar el riesgo de mortalidad en recién nacidos prematuros menores de 34 semanas de gestación.
Astigmatic Outcomes after Wavefront-Guided and Wavefront-Optimized Refractive Surgeries for Myopia with Low to Moderate Cylinder
Authors: RK Sia , DS Ryan , RD Stutsman , JF Pasternak , JB Eaddy , LA Logan , BA Rivers , KS Bower
Published: March 2021

Purpose: To compare the efficacy and accuracy of wavefront-guided (WFG) and wavefront-optimized (WFO) PRK and LASIK for the treatment of myopia with low to moderate astigmatism.Methods: In this prospective cohort study, 215 active duty military service members (430 eyes, mean spherical equivalent -3.61 ± 1.53 D) electing either PRK or LASIK were randomized to undergo WFG or WFO treatment. Up to 12 months, postoperative visual outcomes following surgeries were compared between 4 treatment groups: WFG PRK, WFG LASIK, WFO PRK, and WFO LASIK for myopia with 0.25 to 0.50 D astigmatism (≤ 0.50 D cyl subgroup) and ≥ 0.75 D astigmatism (≥ 0.75 D cyl subgroup). High and low contrast visual acuities were assessed and vector analysis was performed.Results: At 12 months postoperatively, the surgically induced astigmatism, magnitude of error, correction and flattening indices were significantly different between treatment groups (P values ≤ 0.001) in the ≤ 0.50 D cyl subgroup. In ≥ the 0.75 D cyl subgroup, there were no significant differences in vector analysis parameters except for the magnitude of error and correction index (P values ≤ 0.010). The treatment groups were comparable in terms of postoperative uncorrected distance visual acuity, manifest spherical equivalent, and best-corrected low contrast visual acuity.Conclusions: No treatment modality showed consistent superiority in correcting low to moderate astigmatism. Overall, both PRK and LASIK using either wavefront-guided or wavefront-optimized laser platforms were similarly effective and accurate in treating myopia with a low to moderate amount of astigmatism.
ABSA: Computational Measurement Analysis Approach for Prognosticated Aspect Extraction System
Authors: Syamala Maganti , Nalini N.J.
Published: March 2021

Aspect based sentient analysis (ABSA) is identified as one of the current research problems in Natural Language Processing (NLP). Traditional ABSA requires manual aspect assignment for aspect extraction and sentiment analysis. In this paper, to automate the process, a domain-independent dynamic ABSA model by the fusion of Efficient Named Entity Recognition (E-NER) guided dependency parsing technique with Neural Networks (NN) is proposed. The extracted aspects and sentiment terms by E-NER are trained to a Convolutional Neural Network (CNN) using Word embedding’s technique. Aspect categorybased polarity prediction is evaluated using NLTK Vader Sentiment package. The proposed model was compared to traditional rule-based approach, and the proposed dynamic model proved to yield better results by 17% when validated in terms of correctly classified instances, accuracy, precision, recall and F-Score using machine learning algorithms.
Estimation of breeding material of interspecific hybrids Allium ascalonicum L. and Allium cepa L.
Authors: Steinert T. V. , Teplova N. S. , Aliluev A. V.
Published: March 2021

Relevance. Shallots are an independent botanical species. It easily crosses with onions, has a medium-sized bulb, keeps well, gives rich greens. Shallot and onion hybrids have a higher yield, less nesting, and a large bulb mass. Work on the creation of interspecific hybrids of shallots and onions has been under way since 2000.

Methods. The aim of the research was to study the hybrids of Allium ascalonicum L. x Allium cepa L. and Allium cepa L. x Allium ascalonicum L. by a complex of characters in comparison with their maternal forms. Samples from the Urals were taken as initial forms for hybridization.

Results. 268 promising hybrids were obtained, of which 33 were selected for further study. The results of the study showed the advantage of hybrid forms, where shallots were the parent form. A significant advantage of hybrids over parental forms was revealed in terms of yield, average and maximum bulb weight.
Metody oceny efektywności działań przedsiębiorstwa na rzecz konsumenta na przykładzie przedsiębiorstw innowacyjnych
Authors: Abramczyk Damian
Published: March 2021

Konsument dąży do tego by posiadać coraz więcej, poprzez wydatkowanie dochodu pozyskanego z różnych źródeł. Ten chce mieć więcej, niż mniej. Przedsiębiorstwa, chcąc sprostać oczekiwaniom klienta, produkują dobra, od jakości których zależy przyszły wynik finansowy przedsiębiorstwa. Klient, nabywając dobra od producenta oczekuje możliwie najwyższej jakości produktów, przy założeniu przeciętnego pułapu cenowego, dopasowanego względem jego preferencji oraz możliwości finansowych. Zdarzyć się może sytuacja, kiedy klient nie będzie zadowolony z usługi bądź produktu. Zdarzenie to wywołuje niekorzystny efekt na przedsiębiorstwo. Celem optymalizacji tego zjawiska niezbędne jest podjęcie działań zapobiegawczych, które prawie zawsze poprzedzone są wnikliwym badaniem i analizą. W poniższym artykule przedstawione będą wybrane przez autora metody pozyskania informacji o stopniu zadowolenia (satysfakcji) klienta z nabytych przez niego dóbr. Przytoczone zostaną argumenty społeczne oraz psychologiczne, mające wpływ na końcowy poziom satysfakcji klienta. Wskazane zostaną również skutki dla przedsiębiorstwa, związane z wynikami badania stopnia satysfakcji klienta.