bluuebunny/crossref_metadata_2025 huggingface dataset:
PRIVATE MEDICAL INSTITUTION BUSINESS MODEL TRANSFORMATION
Authors:   Kyiv National Economic University named after Vadim Hetman, Osokina Alla , Mysyshyn Tetiana ,   Kyiv National Economic University named after Vadim Hetman
Published: May 2021

The purpose of this article is to describe the key aspects of the transformation of outdated business models of private healthcare institutions in Ukraine. The article supports the point that existing business models of private medical institutions could be improved based on assessing the quality of services provided and creating a unique value proposition using modern marketing tools for the development of business models. On the basis of the economically substantiated business model development strategy of «MEDICOM Anti-Aging Clinic», theoretical conclusions have been empirically confirmed and their applied significance has been proved.
GENERALIZING THE CONDITIONS FOR THE SYNTHESIS OF MULTICONNECTED CONTROL SYSTEMS WITH A PRESET QUALITY
Authors:   National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Repnikova Nataliya , Hnyp Vladyslav ,   National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
Published: May 2021

Considered the problem of ensuring high quality synthesis of control systems described with vector-matrix equations. Proposed to generalize conditions of choosing the roots of the characteristic equation and dimensionality of the zero elements of the corresponding matrices for synthesis of digital multiconnectiononal control systems. Shown results of modeling using Matlab / Simulink application package.
GLOBAL PANDEMIC CHALLENGES REFUGEES: PROBLEMS AND SOLUTIONS
Authors:   University of Oviedo, Sydorenko Viktoriia
Published: May 2021

This article deals with the overview of the role of the pandemic Covid-19 in the life of refugees. The Author pays attention to the general characteristic of the impact of the global pandemic on immigrants. Special attention is devoted to the problems faced by migrants. The author also provides examples for solving these problems.
TELEGRAM CHATBOT AS AN ADDITIONAL TOOL FOR LINUX AND UNIX SYSTEMS ADMINISTRATION
Authors:   Taras Shevchenko National University of Kyiv, Rohovyi Denys , Pogorilyy Sergiy ,   Taras Shevchenko National University of Kyiv
Published: May 2021

Chatbot Telegram for managing Linux and Unix systems was created. This tool should help system administrators to manage Linux and Unix systems from any device that has access to Telegram messenger and the Internet
IMPROVING THE QUALITY OF PUBLIC GOVERNANCE OF CITY POPULATION
Authors:   O.M. Beketov National University of Urban Economy in Kharkiv, Kalashnikova Khrystyna , Diegtiar Oleg ,   O.M. Beketov National University of Urban Economy in Kharkiv
Published: May 2021

The notion of the state system of quality management of the sphere of life support is systematized. It is established that in reality in public administration in the field of life support there are only certain elements of the quality system, and there are also such reasons (factors) for slowing down the management of systems. The basic principles of the state system of management of quality of life support of the population of the cities of Ukraine are outlined.
Determinants of Capital Structure in Pakistani Listed Firms (The Case of Pakistani Listed Firms)
Authors:   Institute of Business and Management Sciences, The Agricultural University, Peshawar, KPK, Pakistan, S Khan , S Ullah ,   Institute of Business and Management Sciences, The Agricultural University, Peshawar, KPK, Pakistan, I ur Rehman ,   School of Marxism, China University of Geo Sciences (Wuhan), Hongshan District Region Wuhan, P.R. China, I Sami ,   Department of Finance and Management Sciences, LUAWMS, Uthal Balochistan, Pakistan, F Ullah ,   Faculty of Veterinary and Animal Sciences, LUAWMS, Uthal, Balochistan, Pakistan, M Salim ,   Department of Forestry and Wildlife Management, University of Haripur, Khyber, Pakhtunkhwa, Pakistan, S Ali ,   Department of Forestry and Wildlife Management, University of Haripur, Khyber, Pakhtunkhwa, Pakistan
Published: May 2021

The sample data was comprised of non-financial firms listed on Karachi Stock Exchange, Pakistan from 1993 to 2002 excluding banks, insurance companies, and investment companies. We were taken the debt to total assets ratio as a proxy for leverage (dependent variable) that was measured following ways mentioned in previous studies (Jensen (1986), Harris and Revive (1990) and Banerjee, et al., 2000). For potential determinants of leverage, we study four independent variables namely tangibility, size, growth and profitability. Variables affecting leverage ratio were calculated by dividing the total debt by total assets and 3-variables were significantly related to leverage ratio whereas the remaining variables were not statistically significant in having relationship with the debt ratio. Our results showed that tangibility variable confirms tradeoff theory, Growth (GT) variable confirms the agency theory hypothesis and Profitability (PF) confirms the predictions of pecking order theory.
An Unusual Case of Pannus Formation - A Late Postoperative Complication of a Prosthetic Valve Replacement Causing Severe Cardiomyopathy
Authors:   Department of Internal Medicine, Norton Community Hospital- Internal Medicine Residency, Norton, United States, AM Carreon , I Mohsin ,   Department of Internal Medicine, Norton Community Hospital- Internal Medicine Residency, Norton, United States, B Watson ,   Department of Internal Medicine, Norton Community Hospital- Internal Medicine Residency, Norton, United States, RN Carter ,   Department of Cardiothoracic Surgery, Ballad CVA Heart Institute, Kingsport, United States, M Ponder ,   Department of Cardiology, Ballad CVA Heart Institute, Kingsport, United States, K Kramer ,   Department of Cardiology, Ballad CVA Heart Institute, Kingsport, United States
Published: May 2021

There are several well-known long-term complications following prosthetic valve replacement. Pannus formation is one of the rare complications whose estimated incidence varies between 0.3% and 1.3% per patient-year [1]. The exact etiology of pannus formation is unknown but histopathologically, pannus formation is due to fibroelastic hyperplasia that variably occurs after valve implantation [2]. The rarity and acute coronary syndrome like clinical presentation makes pannus formation a clinically important diagnosis during initial presentation. Workup preferably includes Transthoracic Echocardiography (TEE) with or without CT angiography. Management includes urgent or emergent surgical excision of the pannus with or without re-replacement of the aortic valve [1]. We present a 66-year-old female who presented with typical angina symptoms along with diffuse ischemic EKG changes five years after aortic valve replacement surgery with Trifecta Bioprosthesis due to severe aortic stenosis with Non-ST Elevation Myocardial Infarction (NSTEMI). Coronary angiography done on admission showed left main ostial stenosis of 90-95 % in proximity to the aortic valve prosthesis. A Transthoracic Echocardiogram (TTE) revealed an ejection fraction of 30-35 % with global hypokinesia but did not suggest any valve dysfunction. CT angiogram was done the next day which revealed a noncalcified plaque (pannus) greater than 75% occlusion in the left main in proximity of the aortic valve. Despite expedited care and surgical evaluation, unfortunately the patient decompensated in the surgical operating room and did not survive.
Ontological Approach to the Description of a Common Digital Space of Scientific Knowledge
Authors: Атаева Ольга Муратовна , Калёнов Николай Евгеньевич , Серебряков Владимир Алексеевич
Published: May 2021

Despite the development of technical means, the processes associated with the search for complete and accurate scientific information in a huge number of data sources are becoming more complicated. To reach a new level in the use of information processing technologies, first of all, a transition to a semantically meaningful representation is necessary for scientific knowledge extracted from information in a digital environment. In modern conditions, characterized by multidisciplinary research, the desired effect can be achieved by developing universal approaches to the storage and presentation of scientific knowledge. These approaches are reflected in the concept of the Common Digital Space of Scientific Knowledge. The paper presents an overview of the basic concepts in this area, which are used both to represent the elements of space and to provide access to them not only for humans, but also for software agents. Semantic libraries are considered as tools for constructing the knowledge space.
İnce Film Üretiminde Kimyasal Buhar Biriktirme Yöntemi ve Çeşitleri
Authors: ÇOŞĞUN Ayşegül , TAŞÇIOĞLU Ayşegül , YILMAZ Gökhan
Published: May 2021

İnce film teknolojisi hemen her sektörde özellikle de elektronik cihaz sektöründe yaygın olarak kullanılmaktadır. İnce filmlerin tercih edilmesindeki en büyük etken üretimine bağlı olarak morfolojik yapısının ayarlanabilir olması, stokiyometrisinin kontrol edilebilmesi ve homojenliğidir. Bu sebeple ince film üretim teknikleri büyük önem arz etmektedir. Bu özellikleri elde etmek için en çok kullanılan yöntem kimyasal buhar biriktirme (KBB) yöntemidir. Bu yönteme bağlı olarak da farklı tasarımlar üzerine çalışmalar yapılmıştır. Bu çalışmada ise kimyasal buhar biriktirme yöntemleri araştırılarak yöntemlerin avantajlı ve dezavantajlı olduğu parametreler belirlenmiştir.
The Impact of the Management System on Developing Occupational Safety Awareness Among Employees
Authors: SUKIENNIK Marta , BĄK Patrycja , KAPUSTA Mariusz
Published: May 2021

This paper discusses the subject of occupational safety using the example of a leading hard coal mining company in Poland. It presentssome examples of occupational safety management systems implemented and functioning in enterprises. It also characterisesthe role of awareness in developing the appropriate attitudes and conduct among employees in the workplace. The paper presentsthe selected results of surveys conducted among the executive employees of JSW S.A. The obtained results served as the basis forpreparing preliminary conclusions and identifying potential areas for further studies in this field.
FACTORS AND FEATURES OF THE SMART-ECONOMY DEVELOPMENT
Authors: Kalenyuk Iryna , Uninets Iryna
Published: May 2021

The article examines the prerequisites and features of the SMART-economy. This new phenomenon is still insufficiently studied in the scientific literature. Different approaches and separate definitions of SMART-economy in the scientific literature are systematized. An understanding of SMART-economy in a narrow (as part of SMART-city) and broad sense (as a set of economic relations) is proposed. The main processes that determine the emergence of SMART-economy as an ecosystem are identified and disclosed. Digitalization (spread of ICT), institutionalization (penetration of ICT into public administration), urbanization (unprecedented growth of urban population and large cities), greening (increasing attention to environmental issues) and socialization (increasing the importance of solving social problems of the population) all contribute to the emergence of new quality of ecosystems. Based on the data, the trend of increasing the share of urban population in recent years is revealed, the data on the population of the largest cities in the world are given. The increasing in urban population highlights the problems of using ICT to solve the problems of greening, socialization, institutionalization in large cities.
A Retrospective Study on 1587 Exotic Pets Presented to The Small Animal Veterinary Hospital, University of Tehran
Authors: Tamimi Naqa S. M , T. Bahare , J Shahram , R. Amir
Published: May 2021

In recent decades, exotic pets are increasingly invited to homes with a wide range of variation in species and requirements that are more specialized. During a one-year period, 2408 exotic animals admitted to the Small Animal Veterinary Hospital, University of Tehran were assessed. Rabbits, hamsters, squirrels, turtles/tortoises, guinea pigs, lizards, hedgehogs, reindeer, monkeys, and snakes were referred, respectively. Owner referral cause and their gender in addition to the disease diagnosis were analyzed. While no statistical significance (P>0.05) was observed in the total number of men and women presenting these animals, gender-based preferences were spotted for owning specific types of animal species in this study (P<0.05). Furthermore, analysis showed that snakes and rabbits were more commonly (P<0.05) presented for checkup; while chelonians, lizards, hedgehogs, and monkeys were more presented with health problems (P<0.05). Other animals’ results did not show statistically significant difference for admission reasons (P>0.05). The health record assessment included 1587 animals with complete health files. The most common diseases diagnosed in most of these animals were metabolic bone disease/musculoskeletal problems and dental problems. In addition, eye problems in chelonians and urinary problems in hedgehogs were the most common diagnosis of those species. In conclusion, since the most common health problems of most participating animals were associated with mismanagement and inappropriate diet, it is highly recommended that owners be thoroughly educated by veterinarians to reduce the possibility of such conditions in exotic captive animals.
The Effect of Adding Thyme vulgaris and Cinnamomun zeylanicum on production performance and some blood traits in broiler chicken
Authors: AL-KASSIE GALIB A.M.
Published: May 2021

This experiment was carried out at poultry house, college of Veterinary Medicine, Baghdad university,Which lasted 42 days, to by adding Thymus vulgaris the used part (Leaves, Steams and Flowers) andCinnamomum zeylanicum the used part (bark) to the concentrate diet for the experimental period for 6 weeks.The study was aimed to find out the effect of thyme or cinnamon on productive, physiological blood traits ofbroilers by using 150 unsexing Arbor Acres chicks at the age of one day. These chicks were randomly dividedinto five group equally (30 chicks each). Each group was subdivided into two equal subgroup. And fed on thefollowing ration.1-The first group was fed on ordinary diet kept as a control group.2- The second group was fed on the same ration by adding 0.5% of thyme.3- The third group was fed on the same ration by adding 1% of thyme.4- The fourth group was fed on the same ration by adding 0.5% of cinnamon.5- The fifth group was fed on the same ration by adding 1% of cinnamon.The feeding period for all groups lasted 42 days, the results revealed that There is an improving inperformance traits for all treated groups compared with control group. However, the chicks fed 0.5% thymeshould better in weekly gain period feed conversion efficiency than those fed 1% thyme. In the mean time thechicks fed 1% cinnamon should significantly higher in weekly gain and fed conversion efficiency then those fed0.5% cinnamon.However, by adding thyme or cinnamon to diet cause an improving in blood traits compared with thecontrol group. The best improving in white blood cell, were obtained in the chicks fed 1% cinnamon and theyshould significantly low better stress coefficient.
Seroprevalance of Toxoplasmosis in sheep and goat: Iraq/ Sulaimania
Authors: Al-Taie Lazem H.
Published: May 2021

Back ground: Toxoplasmosis is an important zoonosis that causes economic losses in animal herds due to abortion and stillbirth as well as changes in the reproductive and neural system of susceptible animals . Objective: The aims of the present study is to determination the prevalence of T. gondii in farm animals ( sheep& goat)of both genders and different ages in Sulaimani province by using two serological tests (ELISA and LAT). Methods: Blood samples were collected from farm animals ,142 sheep and 46 goats , of different sexes and ages. Tow different serological tests ,ELISA and LAT for qualitative determination of T. gondii antibody titer in sheep and goats serum samples. Results: The prevalence rate in sheep was 73 (51.7 %) and 82 (57 %) , and 21 (54.6 %) and 25 (54.35 %) in goats ,by ELISA and LAT respectively. The prevalence of toxoplasmosis was highest in age group 7-9 (66.6%) in sheep in compares’ with other age groups. There was no significant differences between both spp.and tow test. Conclusion: Statistical results show no significant differences between both tests (ELISA &LAT) at (P ≥ 0.05).The prevalence of toxoplasmosis was increased proportionally with the age of animals, while gender has no effect on the prevalent rate .
Crimean-Congo Hemorrhagic Fever in Iraq During 2010
Authors: Abul-Eis , Emad S.
Published: May 2021

Crimean-Congo hemorrhagic fever (CCHF) is a viral zoonotic disease with a highmortality rate in humans. CCHF is caused by genus Nairovirus, in family of Bunyaviridae,and is transmitted to humans through the bite of ticks Hyalomma spp or contact with blood ortissues of CCHF patients or infected livestock.The total numbers of positive patients to CCHF virus was 11 out of 44 suspected sampleswere examined from eight provinces during the period from January to December 2010 . Theway of transmission is due to contact with blood and tissues of infected animals, and onepatient slaughtered sheep in his house. ELISA was used to detect Crimean-Congohemorrhagic fever (CCHF) virus-specific immunoglobulin M (IgM) in human serum samples.
Effect of Flavonoids Extracted from Black Cumin (Nigella sativa) and Vitamin E in Ameliorating Hepatic Damage Induced by Sodium Nitrate in adult male rats
Authors: AL-Okaily Baraa N.
Published: May 2021

This study was designed to investigate the effect of sodium nitrate as oxidant agent on hepatic function of adult male rats, as well as the possible protective role of vitamin E and flavonoid extracted from Nigella Sativa seeds against the deleterious effects of sodium nitrate. Forty adult male rats were randomly divided in to 4 equal groups and treated daily for 84 days as follows: Animals in the first group were received normal saline, serving as control (group C), rats of the second group (T1) were intubated orally sodium nitrate 30mg/kg. B.W.; animals in T2 group were intubated orally vit. E 40mg/Kg B.W. in addition to sodium nitrate, while rats in the fourth group (T3) were intubated orally 50mg/kg B.W of flavonoids was extracted from Nigella Sativa seeds with sodium nitrate. Blood samples were collected at 0, 21, 42, 63 and 84 days of experiment to study the following parameters: Serum alanine aminotransferase (ALT) and alkaline phosphtase activity (ALP), serum billirubin, as well as hemoglobin concentration. The result revealed that oral intubation of 30mg/kg. B.W of sodium nitrate (T1 group) for 84 days caused hepatic damage manifested by significant increase (p<0.05) in serum ALT and ALP activities, bilirubin concentration and depression in hemoglobin concentration. On other hand, the protective role of vitamin E and flavonoids extracted from Nigella Sativa was clarified in groupsT2 and T3, including correction of hepatic damage manifested by significant (p<0.05) depression in ALT and ALP activities and bilirubin concentration as well as significant (p<0.05) elevation in hemoglobin concentration. In conclusion, the results of this study confirm the protective role of vitamin E and flavonoids of Nigella sativa seed against hepatic dysfunction caused by sodium nitrate manifested by structural and functional changes.
Monthly changes in testes and epididymis measurements with some semen characteristics of tail epididymis for Iraqi buffalo
Authors: AL-Sahaf Mohammed Mehdi
Published: May 2021

تضمنت الدراسة الحالية التغيرات الشهرية في قياسات الخصى والبرابخ ونشاط الذكور في الجاموس العراقي.تضمنت الدراسة 052 خصية أخذت من مجزرة شرق مدينة كربلاء وللفترة من شهر كانون الأول ولغاية شهر ايلول,أجري فحص عياني للذكر قبل الذبح للتأكد من سلامته الصحية. وأجري تقييم للسائل المنوي ) الحركة الفردية ،الحيوية،التركيز والتشوهات (للسائل المسحوب من ذيل البربخ .وزنت الخصية اليمنى بعد الذبح وأخذت أبعاد الخصية والبربخبصورة منفصلة .بينت الدراسة الحالية وجود زيادة معنوية في وزن وأبعاد الخصية في شهر اذار ونيسان ,وزيادة معنويةفي وزن وطول البربخ وقطر ووزن ذيل البربخ في شهر نيسان وايار .اما الحركة الفردية اظهرت زيادة معنوية في كانونالاول وكانون الثاني ونيسان ،وكذلك نسبة النطف الحية ارتفعت معنويا في شهر نيسان واذار وايار ،وزيادة معنوية فينسبة التشوهات في شهر اب وتموز وايلول .نستنتج من هذه الدراسة أن الفعالية التكاثرية لذكور الجاموس والصفاتالفيزياوية للسائل المنوي أرتفعت في الأشهر المعتدلة والباردة وانخفضت في الشهر الحارة ،مما يدل على ان زيادة درجةحرارة المحيط في الأشهر الحارة قد أدت الى حدوث اضطرابات في الفعالية التكاثرية ولكن لا تؤدي الى توقفها .الكلمات المفتاحية: خصى الجاموس , بربخ الجاموس , فحوصات السائل المنوي للجاموس
Six String Quartets, Opus 32 and Opus 33
Authors: Kozeluch Leopold
Published: May 2021

Kozeluch, Mozart's greatest rival in Vienna, published his only string quartets in 1790 and 1792, at a time when he was being described by the lexicographer Gerber as “the most loved among living composers.” A study of these works offers much-needed insights into this significant composer, the string quartet genre, and the fascinating decade that saw the musical shift from classicism to romanticism.
Symphonie I
Authors: Widor Charles-Marie
Published: May 2021

Charles-Marie Widor established the organ symphony as a genre with his first four Symphonies pour orgue, opus 13 (1872). The preface to this edition of Widor's Symphonie I includes essays on the place of organ music in Widor's oeuvre, his musical heritage, his development of the organ symphony, the first performances and publications, the sources, performance guidelines, and a technical description of the organ of Saint-Sulpice. The general outline of Symphonie I in C Minor was conceived early in Widor's career, but in later years he expanded it from five to seven movements, totally reworked the finale, and made sweeping revisions in the second movement at the very end of his life. Also included in this edition are five appendices containing selected principal variants, with two complete additional versions of the second movement and one complete additional version of the finale.
Symphonie II
Authors: Widor Charles-Marie
Published: May 2021

Charles-Marie Widor established the organ symphony as a genre with his first four Symphonies pour orgue, opus 13 (1872). The introduction to this edition of Widor's Symphonie II includes a list of the sources, a statement of editorial policies, and information about Widor's registrations. Symphonie II in D Major, in six movements, seems to take the listener on a timbral tour of the organ, with each successive movement featuring fresh registrational combinations. Also included in this edition are five appendices containing selected principal variants, with the original version of the first movement, the original scherzo fourth movement (later replaced by the Salve Regina), and the original version of the fifth movement Adagio.
Songs for Pianoforte, 1836–1837
Authors: Hensel Fanny
Published: May 2021

The piano pieces Fanny Hensel composed in 1836 and 1837 represent a landmark in her development as a composer, because for the first and only time she sought to publish a major collection of music under her own name. These pieces are an important type of nineteenth-century music written not for the public concert hall but for private gatherings of connoisseurs. The expectations of this style are as particular and exacting as those of the concert hall. These fairly short pieces—with appealing melodies, but also with sections of sharp contrast and technical display—are intended not only to appeal to the emotions but to dazzle with their brilliance. This first edition of Hensel's piano music written in 1836–37 makes available a significant body of her work and thus broadens our knowledge of her style.
Production of tungsten powders with highly developed surface
Authors:   Tananaev Institute of Chemistry - Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences» Science Centre of Russian Academy of Sciences, Kolosov V.N. , Miroshnichenko M.N. ,   Tananaev Institute of Chemistry - Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences» Science Centre of Russian Academy of Sciences, Orlov V.N. ,   Tananaev Institute of Chemistry - Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences» Science Centre of Russian Academy of Sciences
Published: May 2021

The process of producing tungsten powders with a highly developed surface by reducing its oxide compounds with magnesium vapor in the temperature range 600—750 °C under dynamic vacuum (0.01 kPa) and with a residual argon pressure in the reactor 0.5—10 kPa has been studied. During the reduction of magnesium and calcium tungstates, tungsten powders were obtained with a specific surface area of 40 m2·g–1, characterized by a mesoporous structure.
Model-based foraging using latent-cause inference
Authors: Harhen Nora , Hartley Catherine A. , Bornstein Aaron
Published: May 2021

Foraging has been suggested to provide a more ecologicallyvalidcontext for studying decision-making. However, the environmentsused in human foraging tasks fail to capture thestructure of real world environments which contain multiplelevels of spatio-temporal regularities. We ask if foragers detectthese statistical regularities and use them to construct amodel of the environment that guides their patch-leaving decisions.We propose a model of how foragers might accomplishthis, and test its predictions in a foraging task with a structuredenvironment that includes patches of varying quality andpredictable transitions. Here, we show that human foragingdecisions reflect ongoing, statistically-optimal structure learning.Participants modulated decisions based on the current andpotential future context. From model fits to behavior, we canidentify an individual’s structure learning ability and relate itto decision strategy. These findings demonstrate the utility ofleveraging model-based reinforcement learning to understandforaging behavior.
Risk factors of stunting during the complementary feeding period 6-23 months in the Philippines
Authors:   Food and Nutrition Research Institute, Department of Science and Technology, Taguig City, Philippines, Guirindola Mildred O , Goyena Eva A ,   Food and Nutrition Research Institute, Department of Science and Technology, Taguig City, Philippines, Maniego Ma. Lynell V. ,   Food and Nutrition Research Institute, Department of Science and Technology, Taguig City, Philippines
Published: May 2021

Introduction: Stunting persists as a public health problem in the Philippines, affecting 30% of under-five children. This study aimed to identify the drivers of stunting in young Filipino children aged 6-23 months. Methods: Data were extracted from the cross-sectional Updating Survey conducted in 2015 by the Food and Nutrition Research Institute of the Department of Science and Technology (FNRI-DOST). Potential predictors of stunting, which were categorised into childrelated characteristics, feeding practices, maternal socio-demographic status and health practices, and household economic and food security status, were examined using descriptive and regression analyses. Results: Of the 2,275 children aged 6-23 months, 18.7% were stunted and 8.3% were severely stunted. The risk of stunting increased significantly among older children aged 12-23 months (relative risk ratio, RRR 3.04), males within 6-23 months of age (RRR 1.99), and low-birth-weight infants (RRR 2.19). Children born from teenage mothers (RRR 1.90), mothers with short stature (RRR 2.33), and mothers with low education (RRR 1.59) posed higher risks of becoming stunted relative to their counterparts. Mothers with >4 children (RRR 2.44), coming from the poorest households (RRR 4.27), having untimely introduction of complementary foods (RRR 4.44), and not meeting the minimum meal frequency (RRR 2.30) increased the risks of severe stunting. Conclusion: The study illustrated the multi-factorial nature of stunting among Filipino children aged 6-23 months old. Therefore, a multi-sectoral approach is needed to address the underlying factors of stunting among young Filipino children to help achieve the country’s nutrition targets by 2025.
Neumomediastino espontáneo: ¿una patología benigna?
Authors: Baeza Carrión Ana , Cornejo López María de los Ángeles , Garrido Benito Beatriz , Pascual Nadal Juan José , Velayos García Paula , Ripoll Martín Roberto , Ots Gutiérrez José Ramón , Oliver García Israel
Published: May 2021

Introducción y objetivos: El neumomediastino espontáneo se define como aire intersticial en el mediastino sin causa primaria establecida que predomina en varones jóvenes adultos. El objetivo de este estudio es informar sobre el manejo habitual en nuestro hospital y proponer un algoritmo diagnóstico-terapéutico.

Materiales y métodos: Estudio descriptivo y retrospectivo de 25 casos de neumomediastino espontáneo diagnosticados en nuestro hospital, en un período de 25 años.

Se analizaron datos demográficos, factores predisponentes y desencadenantes, clínica, diagnóstico, tratamiento y recurrencias.

Resultados: La edad media fue de 22 años, con asma, inhalación de drogas, extracciones dentarias o tabaquismo como factores predisponentes. Los síntomas más frecuentes fueron dolor torácico, disnea, disfonía y disfagia/odinofagia. El diagnóstico inicial se obtuvo mediante radiografía de tórax, completándose en ocasiones con tomografía computarizada, esófagograma o laringoscopía. Todos los pacientes ingresaron manejándose de forma conservadora. Durante el seguimiento el 12 % presentó recurrencia del neumomediastino, resolviéndose sin complicaciones.

Discusión: La presencia de aire libre mediastínica puede percibirse como hallazgo de mal pronóstico, pero estudios previos concluyen que el neumomediastino espontáneo cuenta con un curso benigno, aunque el diagnóstico debe hacerse por exclusión, pues el grosso de la evidencia lo constituye el neumomediastino secundario.

Conclusiones:El neumomediastino espontáneo es una entidad benigna e infrecuente, que puede tener factores predisponentes y desencadenantes, si bien no existe causa primaria aparente. Se resuelve habitualmente de forma conservadora en pocos días, aunque pueden existir recurrencias.
Justification of the use of a vegetal additive to diesel fuel as a method of protecting underground personnel of coal mines from the impact of harmful emissions of diesel-hydraulic locomotives
Authors: Korshunov G. , Eremeeva Anzhelika , Drebenstedt Carsten
Published: May 2021

Equipment with diesel engines is used in all mining enterprises. Monorail diesel transport is of great importance in coal mines, as it facilitates the heavy labor of workers when transporting materials and people, fixing mining workings, refueling and repairing equipment, which leads to an increase in the speed of tunneling operations. Reducing the concentration of harmful gases from diesel-hydraulic locomotives at the workplaces of coal mine locomotive drivers can be ensured by the use of additives to diesel fuel that reduce the volume of harmful gas emissions during the operation of diesel-hydraulic locomotives. Additive ester-based on vegetal oil in the amount of 5 mass % in a mixture with hydrotreated diesel fuel reduces the concentration of carbon monoxide by 19-60 %, nitrogen oxides by 17-98 %, depending on the operating mode of the engine, the smoke content of the exhaust gases is reduced to 71 %. There is an improvement in working conditions at the workplace of the driver of a diesel-hydraulic locomotive by the chemical factor due to the reduction of the class of working conditions from 3.1. to 2.
Repüléskoordináló és -optimalizáló rendszer
Authors: Békési Bertold , Sári János , Gajdács László
Published: May 2021

A cikkben a szerzők bemutatják a repüléskoordináló és - optimalizáló rendszert. Rövid bevezetést követően  bemutatjuk az FMS funkcióit, felépítését. Ismertetjük a  rendszer elemeit, típusait, valamint azok alapvető  működését is. Célunk egy átfogó, könnyen megérthető  összefoglaló elkészítése a repüléskoordináló és - optimalizáló rendszerről.
Агротехнологічні аспекти механічного захисту рослин від бур’янів за біологізації технології вирощування соняшника
Authors: Жуйков О.Г. , Іванів М.О. , Ревтьо О.Я. , Бурдюг О.О.
Published: May 2021

Мета – проаналізувати фітосанітарний стан агроце-нозу гібридів соняшника в контексті його забур’яненостіоднорічними та багаторічними видами різних екологічнихгруп, установити оптимальні способи передпосівноїобробки ґрунту, догляду за посівами культури, режимироботи та робочі швидкості машинно-тракторногоагрегату з огляду на ефективність знищення бур’янівта пошкодження культурних рослин, проаналізувативрожайність кондиційного насіння культури та його олійність залежно від ступеня біологізації технології виро-щування. Методи – двохфакторний польовий дослід, дефактор А був представлений двома варіантами райо-нованих гібридів середньостиглої екологічної групи:Tunca F1 та РR64F66 F1; фактор В (технологія вирощу-вання): традиційна інтенсивна зональна (контроль), біо-логізована І, біологізована ІІ, органічна та екстенсивна.Дослід супроводжувався дослідженням засміченості посі-вів бур’янами кількісно-ваговим методом з диференціа-цією за групами та видами бур’янів, заселеністю й ура-женістю посіву фітофагами та патогенами, лушпинністюта олійністю насіння згідно із загальноприйнятими мето-диками. Залучення до- та післясходового боронуванняштригельними боронами і ротаційними мотикамита міжрядних культивацій до системи захисту куль-тури від бур’янів як складової частини біологізованоїта орнганічної технології вирощування соняшника непоступається за ефективністю застосуванню ґрунтовихта страхових синтетичних гербіцидів, а в другу поло-вину вегетації переважає їх за контролем другої-тре-тьої хвиль пізніх ярих видів. Максимального значенняпоказник урожайності насіння гібридів, що досліджува-лися, набув за варіантами органічної та біологізованоїІІ технологій вирощування і становив 2,16–2,20 т/га; затрадиційної (інтенсивної) та біологізованої І він стано-вив 1,87–1,88 т/га. Вирощування культури за екстенсив-ною технологією (без застосування будь-яких добривта засобів захисту рослин) визнане нами як неефек-тивне: у середньому за роки проведення дослідженьурожайність насіння не перевищувала 0,70–0,73 т/га заепіфітотійного розвитку хвороб, високого рівня ураже-ності фітофагами та забур’яненості агроценозу.
Interactions of galanin with endomophin-2, vasopressin and oxytocin in nociceptive modulation of the trigemino-hypoglossal reflex in rats
Authors: Zubrzycka M , Janecka A
Published: May 2021

Galanin (GAL) is suggested to be a neuropeptide involved in pain
transmission. In this study we tried to determine, whether the
increase of GAL concentration in brain cells affects impulse
transmission between the motor centers localized in the vicinity
of the third and fourth cerebral ventricles. The experiments were
carried out on rats under chloralose anesthesia. The study
objectives were realized using the method allowing to record the
amplitude of evoked tongue jerks (ETJ) in response to noxious
tooth pulp stimulation during the perfusion of the cerebral
ventricles with solutions containing tested compounds. Perfusion
of the cerebral ventricles with GAL concentration-dependently
inhibited the ETJ amplitude. The antinociceptive effect of GAL
was blocked by a galanin receptor antagonist, galantide (GLT)
and by opioid antagonists: non-selective naloxone (Nal) and μselective β-funaltrexamine (β-FNA). In contrast, a δ-opioid
receptor antagonist, naltrindole (NTI) or the κ-opioid receptor
antagonist, nor-binaltrophimine (nor-BNI) did not inhibit the
effect of GAL. The antinociceptive effect of GAL was more
pronounced when GAL was perfused in combination with other
neuropeptides/neurohormones, such as endomorphin-2 (EM-2),
vasopressin (AVP) and oxytocin (OT). The present results
demonstrate that in the orofacial area analgesic activity is
modulated by GAL, OT and AVP and that EM-2-induced
antinociception involves GAL.
Perfiles conductuales del alumnado con TDAH: Dominios y Subdominios del Cuestionario Five to Fifteen (FTF)
Authors: Villalba-Heredia Mª Lorena , Pérez Celestino Rodríguez , Santana Amador Zaira
Published: May 2021

El Trastorno por Déficit de Atención con o sin Hiperactividad (TDAH) es un trastorno neurobiológico en el que se presentan una serie de síntomas o patrones de indicadores más o menos estables como hiperactividad, impulsividad y déficit de atención que se empiezan a manifestar en la infancia, solapados en muchos casos con problemas comórbidos. En este artículo se presenta un estudio empírico, realizado con una muestra de 64 alumnos entre los 5 y 15 años de edad, con diagnóstico clínico en TDAH, cursando estudios desde 3º de Educación Infantil a 4º de Educación Secundaria Obligatoria, con una M de edad 10.27 años (DT=2.76), de los cuales 51 son niños y 13 son niñas. Para el estudio se ha empleado una metodología con técnicas cuantitativas, en la que los participantes fueron evaluados mediante el Cuestionario Five to Fifteen (FTF) de Kadesjö, con un cuestionario cumplimentado por sus padres que ofrece la posibilidad de descubrir los problemas propios de un niño con TDAH y aquellos que se pueden asociar. Se aplica el software SPSS para la obtención de los resultados de los 179 ítems correspondientes a los dominios y subdominios del TDAH. Con estos resultados se pretende definir el perfil de los dominios y subdominios del TDAH a través del cuestionario FTF. Entre los resultados hallados encontramos que algunas de las características clave de los niños que presentan este trastorno son las dificultades de aprendizaje y la problemática de estos niños con la interacción social.
Truxene Functionalized Star-Shaped Non-fullerene Acceptor With Selenium-Annulated Perylene Diimides for Efficient Organic Solar Cells
Authors: Lin Kaiwen , Xie Boming , Wang Zhenfeng , Yin Qingwu , Wang Yuehui , Duan Chunhui , Huang Fei , Cao Yong
Published: May 2021

An electron acceptor with a truxene core and ring-fusion perylene diimide (PDI) tripolymer annulated by selenium (Se) branch, named as FTr-3PDI-Se, is designed and synthesized. FTr-3PDI-Se exhibits large conjugated planar conformation, strong absorption spectra in the regions of 300–400 and 450–550 nm, the deep HOMO energy level of 6.10 eV, and high decomposition temperature above 400°C. The FTr-3PDI-Se: PBDB-T-2Cl based device achieved a disappointing power conversion efficiency (PCE) of 1.6% together with a high Voc of 1.12 V. The low PCE was due to the large aggregates of blend film, the imbalanced hole/electron transport and low PL quenching efficiencies. The high Voc can be attributed to the high-lying LUMO level of FTr-3PDI-Se and the low-lying HOMO level of PBDB-T-2Cl. Our research presents an interesting and effective molecule-designing method to develop non-fullerene acceptor.
Surgery for Anomalous Aortic Origin of Coronary Arteries: Technical Safeguards and Pitfalls
Authors: Padalino Massimo A. , Jegatheeswaran Anusha , Blitzer David , Ricciardi Gabriella , Guariento Alvise
Published: May 2021

Anomalous aortic origin of a coronary artery (AAOCA) is reported as the second leading cause of sudden cardiac death in otherwise healthy young individuals. Several surgical studies have reported a shallow operative risk, describing repair as safe and effective with short or medium-term follow-up. However, surgical repair can also be associated with a high risk of complications. Numerous repair techniques have been described in the literature, but each technique's indications and limitations are often not well-understood or understated. Since explicit technical knowledge of the most appropriate surgical technique is highly desirable, we sought to thoroughly and clearly outline the safeguards and pitfalls of the most common surgical techniques used to repair AAOCA.
Experimental Study on Petrophysical Properties as a Tool to Identify Pore Fluids in Tight-Rock Reservoirs
Authors: Ma Rupeng , Ba Jing , Carcione José , Lebedev Maxim , Wang Changsheng
Published: May 2021

The petrophysical properties can be proper indicators to identify oil and gas reservoirs, since the pore fluids have significant effects on the wave response. We have performed ultrasonic measurements on two sets of tight siltstones and dolomites at partial saturation. P- and S-wave velocities are obtained by the pulse transmission technique, while attenuation is calculated using the centroid-frequency shift and spectral-ratio methods. The fluid sensitivities of different properties (i.e., P- and S-wave velocities, impedances and attenuation, Poisson's ratio, density, and their combinations) are quantitatively analyzed by considering the data distribution, based on the crossplot technique. The result shows that the properties (P- to S-wave velocity and attenuation ratios, Poisson's ratio, and first to second Lamé constant ratio) with high fluid-sensitivity indicators successfully distinguish gas from oil and water, unlike oil from water. Moreover, siltstones and dolomites can be identified on the basis of data distribution areas. Ultrasonic rock-physics templates of the P- to S-wave velocity ratio vs. the product of first Lamé constant with density obtained with a poroelastic model, considering the structural heterogeneity and patchy saturation, are used to predict the saturation and porosity, which are in good agreement with the experimental data at different porosity ranges.
Performance and Health Decrements Associated With Relative Energy Deficiency in Sport for Division I Women Athletes During a Collegiate Cross-Country Season: A Case Series
Authors: Hooper David R. , Mallard Jared , Wight Jeff T. , Conway Kara L. , Pujalte George G.A. , Pontius Kelsey M. , Saenz Catherine , Hackney Anthony C. , Tenforde Adam S. , Ackerman Kathryn E.
Published: May 2021

The purpose of this case series was to evaluate the presence of low Energy Availability (EA) and its impact on components of Relative Energy Deficiency in Sport (RED-S) in a population of female collegiate runners. Seven female NCAA Division I athletes (age: 22.3 ± 1.5 yrs; height: 169.7 ± 5.7 cm; weight: 58.3 ± 4.1 kg) were tracked from August until February, covering the beginning (Pre XC), end (Post XC) of their competitive cross country season, and beginning of the following track season (Pre Track). The athletes were assessed for female athlete triad (Triad) risk, energy availability, body composition, resting metabolic rate (RMR), nutritional intake, and blood markers (including vitamin D, ferritin, and triiodothyronine (T3)). From Pre XC to Post XC there were no significant differences in body mass, fat free mass or body fat percentage. At Pre XC, mean EA was 31.6 ± 13.3 kcal/kg FFM∙d-1. From Post XC to Pre Track, there was a significant increase in body mass (59.1 ± 5.1 to 60.6 ± 5.7 kg, p<0.001,d=0.27). From Post XC to Pre Track, there was a significant increase in RMR (1466 ± 123.6 to 1614.6 ± 89.1 kcal·d-1, p<0.001,d=2.6). For 25(OH) vitamin D, there was a significant reduction from Pre XC to Post XC (44.1 ± 10.6 vs 39.5 ± 12.2 ng·mL-1, p=0.047,d=-0.4), and a significant increase from Post XC to Pre Track (39.5 ± 12.2 vs. 48.1 ± 10.4 ng·mL-1, p=0.014,d=0.75). For ferritin, there was a trend towards a decrease from Pre XC to Post XC (24.2 ± 13.2 vs. 15.7 ± 8.8 ng·mL-1, p=0.07, d=-0.75), as well as a trend toward an increase from Post XC to Pre Track (15.7 ± 8.8 vs. 34.1 ± 18.0 ng·mL-1, p=0.08, d=1.3). No differences in T3 were observed across time points. Average Triad risk score was 2.3 ± 1.4. Notably, 5 of 7 athletes met criteria for moderate risk. Despite many athletes meeting criteria for low EA and having elevated Triad risk assessment scores, most were able to maintain body mass and RMR. One athlete suffered severe performance decline and a reduced RMR. Surprisingly, she was the only athlete above the recommended value for ferritin. Following increased nutritional intake and reduced training volume, her performance and RMR recovered. Changes in body mass and body composition were not indicative of the presence of other concerns associated with RED-S. This exploratory work serves as a guide for future, larger studies for tracking athletes, using RMR and nutritional biomarkers to assess RED-S.
Case Report: Extensive Dermatitis Secondary to Severe Malnutrition, Zinc and Vitamin Deficiencies After Malabsorptive Bariatric Surgery
Authors: Herrera-Martínez Aura D. , Junquera-Bañares Sonia , Turrión-Merino Lucía , Arrieta-Blanco Francisco , Botella-Carretero José , Vázquez-Martínez Clotilde , Calañas-Continente Alfonso
Published: May 2021

Bariatric surgery is one of the most effective treatments currently available for obesity and its derived comorbidities. However, complications may occur, especially when malabsorptive surgeries like a biliopancreatic diversion is performed. We present the case of a female patient whose obesity was treated with this technique, and in the 9thyear of follow-up developed an extensive dermatitis secondary to zinc deficiency and malnutrition, precipitated by therapeutic non-compliance. A close surveillance of early symptoms and signs of nutritional deficiencies as well as chronic supplementation of vitamins and trace elements is required; this case illustrates the relevance of periodical, lifelong visits to a medical physician with special training and experience in the management of post bariatric surgery patients in order to prevent, diagnosis and early treat related complications.
The Driving Factors of Carbon Emissions in China’s Transportation Sector: A Spatial Analysis
Authors: Xu Xingbo , Xu Haicheng
Published: May 2021

Studies on the CO2 emissions from the transportation sector in China are increasing, but their findings are inconclusive. The main reason is that the spatial correlation of CO2 emissions from the regional transportation sector has been ignored in examinations of the driving factors of CO2 emissions from this sector. In this paper, new emission factors are adopted to calculate the CO2 emission levels from the transportation sector in Chinese provinces. By fully considering the spatial correlation of regional CO2 emissions and based on a two-way Durbin model incorporating both spatial and temporal fixed effects, the driving factors of CO2 emissions from the transportation sector in China are studied. The CO2 and spatial regression results for the transportation sector in China suggest the following: 1) Most of the regions with the highest CO2 emissions from the Chinese transportation sector are located on the east coast; they have gradually expanded over time to include the central and western regions. 2) The CO2 emissions from the transportation sector are higher in South China than in North China, and the regions with higher CO2 emissions have gradually shifted from north to south. 3) Transportation activity intensity, urbanization level, technological level, industrial structure and per capita GDP greatly impact CO2 emissions from the transportation sector in each province of China. Among these factors, transportation activity intensity, urbanization level, and per capita GDP exert not only direct effects but also indirect effects, whereas technological level and industrial structure exert only direct effects.