bluuebunny/crossref_metadata_2025 huggingface dataset:
An Attempt of Explanatory Classification of Human Developmental Stages
Authors: KHUDOYAN Samvel
Published: April 2021

In recent decades, interest in stages of human development sufficiently decreased. The existing stage theories were hardly criticised for methodological issues, insufficient empirical validity, but rare attempts have been made to solve these issues. As a result, contemporary developmental psychology is constructed on the basis of worldly division of ages (infancy, childhood, adolescence, etc.), but not a scientific classification. We offer an explanatory life-span developmental theory based on the functional approach. According to this theory, the function of each developmental stage is to achieve a specific goal by solving a certain developmental problem through a special developmental program. There are four developmental problems and, accordingly, four stages identified. The first problem/stage is the formation of the subject of species activity (0–7 years); the second stage is aimed at developing the subject of sexual activity (8–20, 22 years). During the third stage, a subject of family and work activity forms (20, 22–40, 45 years), and the meaning of the last stage is self-exhaustion (from age 40, 45 until the end of life).
Inserción laboral de los egresados de doctorado de la Universidad Autónoma Metropolitana
Authors:   , Rosas Herrera Priscila
Published: April 2021

Este trabajo tiene como principal objetivo analizar la inserción laboral de los egresados de doctorado en los periodos 2010-2013 y 2017-2020 de tres programas de la UAM Iztapalapa de la División de Ciencias Sociales y Humanidades, el Doctorado en Estudios Organizacionales, el Doctorado en Humanidades, y el Doctorado en Ciencias Económicas. Cada uno de estos programas pertenece a un nivel distinto en el PNPC: Competencia Internacional, Consolidado y en Desarrollo, respectivamente. La fuente de información de este análisis son los estudios de egresados que realiza la UAM en el marco del PNPC desde el 2010 hasta la fecha. Del objetivo general se desprenden los siguientes objetivos particulares: Conocer el desarrollo de los programas de doctorado a nivel nacional y de la UAM. Conocer si el “éxito” de los egresados de doctorado está relacionado con la pertenencia del programa de posgrado a los distintos niveles que establece el PNPC. Conocer si los egresados de doctorado de estos tres programas de la UAM enfrentan dificultades para obtener un empleo y si sus condiciones de trabajo se corresponden con la tendencia a la precarización laboral que enfrentan las nuevas generaciones.
Carcass and Meat Quality of Lambs from Thin-Tailed and Fat-Tailed Breeds at Five Different Slaughter Weights
Authors: Ekiz Bulent , Kecici P. Dilara , Ograk Y. Ziya , Yalcintan Hulya , Ozturk Nursen , Yakan Akin , Demirel Gulcan , Kocak Omur , Yilmaz Alper
Published: April 2021

In lamb production, deciding the optimal slaughter weight (SW) has great importance on product quality. The aim of the study was to determine the optimum SW for lambs from a thin-tailed breed (Kivircik) and a fat-tailed breed (Kangal Akkaraman) in order to get high-quality meat and carcass. Kivircik (n=60) and Kangal Akkaraman (n=59) lambs were allotted to five SW groups (20, 28, 36, 44 and 52 kg). In Kivircik lambs, backfat thickness and fatness score gradually increased in parallel with the increase in SW, while the increase in the tail fat and kidney knob and channel fat (KKCF) proportions were observed by up to 36 kg. In Kangal Akkaraman lambs, evident increases in fatness parameters, except tail fat proportion, were observed when the SW increased from 44 kg to 52 kg. Meat pH, Warner Bratzler shear force (WBSF) and cooking loss values were not influenced by SW in lambs of both breeds. As SW increased in Kivircik lambs, there was a significant decrease in meat lightness and an increase in yellowness. In Kangal Akkaraman breed, lambs slaughtered at 20 kg and 28 kg had higher L* values, and lower a* and C* values than those of other SW groups. In Kivircik lambs, the total PUFA proportion and the ΣPUFA/ ΣSFA ratio were lower in SW-44 and SW-52 groups than those of SW-20 and SW-28 groups. Decreases of these parameters were in SW-52 group in Kangal Akkaraman lambs. In meat samples of both breeds, SW-52 groups had a lower Σn-3 proportion and a higher Σn-6 / Σn-3 ratio than other SW groups. In Kivircik lambs, the panellists evaluated the meat of SW-20 and SW-28 groups as tender compared to those in SW-44 and SW-52 groups. In Kangal Akkaraman breed, flavour intensity in the meat of SW-52 lambs was higher than those of SW-20 and SW-28 groups. Results of the study indicate that slaughtering of lambs at 20 kg and 28 kg in both breeds provided better meat quality but caused lower carcass weight. Therefore, slaughtering Kivircik and Kangal Akkaraman lambs at 20 kg and 28 kg live weight might be recommended especially to farmers, who aim to obtain high-quality lamb meat. In this case, it should not be ignored that the amount of meat produced will be less. On the other hand, slaughtering lambs at about 44 kg weight could be recommended to farmers, who aimed to obtain as much quality lamb carcasses as possible without any negative influence on meat quality.
Weighted Accuracy Algorithmic Approach in Counteracting Fake News and Disinformation
Authors: Bonsu Kwadwo Osei
Published: April 2021

Subject and purpose of work: Fake news and disinformation are polluting information environment. Hence, this paper proposes a methodology for fake news detection through the combined weighted accuracies of seven machine learning algorithms.

Materials and methods: This paper uses natural language processing to analyze the text content of a list of news samples and then predicts whether they are FAKE or REAL.

Results: Weighted accuracy algorithmic approach has been shown to reduce overfitting. It was revealed that the individual performance of the different algorithms improved after the data was extracted from the news outlet websites and ‘quality’ data was filtered by the constraint mechanism developed in the experiment.

Conclusions: This model is different from the existing mechanisms in the sense that it automates the algorithm selection process and at the same time takes into account the performance of all the algorithms used, including the less performing ones, thereby increasing the mean accuracy of all the algorithm accuracies.
The role of administrative borders in determining regional identity: The case of Podlasie, Poland
Authors: Konopski Michał
Published: April 2021

The borders of voivodships in Poland today are not consistent with those of historical regions. The current administrative division is largely based upon imposed boundaries, dividing initial regions. This research topic arises from the dichotomy between the toponymy applied to voivodships because of the administrative reform of 1999 – and the names of historical regions. Implementing such a toponomy, although detached from historical and cultural contexts, has contributed to establishing attachments with current administrative regions, which surpasses identification with historical units. This paper presents the results of empirical research employing a questionnaire survey of the inhabitants of 71 communes (LAU 2 units) in north-eastern Poland. The main objective was to examine the impact of recent administrative reform on territorial identity, with particular emphasis placed on the region of Podlasie. The surveyed communities are to the highest extent attached to national and local levels than to the region, which was only ranked third in the hierarchy of identification with a given area. The regional identity of the population living in north-east Poland is related primarily to the contemporary administrative borders. There are, however, explicit differences in perceptions of the region of Podlasie depending upon respondents’ place of residence, which is an indication that relict borders persist in the residents’ social consciousness.
External Habits Formation and the Environment
Authors: Safi Fatma
Published: April 2021

The present paper presents a standard overlapping generations model with external habits formation and environmental quality in the utility function. Our main objective is to study the impact of external habits on capital accumulation and environmental quality on the intertemporal competitive equilibrium. We notice that striving for status leads to environment worsening and capital increasing when the cohort size is large.
Bishop Albert Bereczky (1893-1966) and the Revival Movement: Albert Bereczky’s Conversion
Authors: Lányi Gábor J.
Published: April 2021

This original research paper discusses Bishop Albert Bereczky’s (1893-1966) first contacts with revivalism, especially his spiritual conversion experience during his adolescent years. Albert Bereczky, Bishop of the Danubian Church District from 1948 to 1958, was one of the most significant, and yet controversial persons of the Reformed Church in Hungary during the 20th Century. From a popular preacher of the Revival Movement of the 1920s, church planter of the 1930s, rescuer of Jews during the War, he became the tool of state interest of the Communist regime in the 1950s. This paper sorts out the origins of his turn to the revival movement, like his troubled childhood, the emotional and financial insecurity of an illegitimate child, his troubled relationship with his biological father, the positive example of his stepfather, and his deviant adolescence behavior. By showing examples of his personal accounts the paper discusses whether Bereczky went through a ‘sudden’ or a ‘gradual’ conversion experience.
Conflict Intensity in African Water Basins: Water Stress and the Effectiveness of Water Management Strategies
Authors: Boyce Sarah
Published: April 2021

Access to cross-border water sources in the African regions of the Nile River, Zambezi River, and Lake Turkana Basins becomes less certain as global population, human consumption, and climate change increase. Uncertainty during periods of high demand for water in agro-dependent economies creates circumstances of water stress, where social stability is low as stakeholders compete over scarce water sources. Longstanding traditions of political power, such as colonial rule and the status of regional superpowers, reinforce the unequal resource distribution. All three regions encounter water stress in the form of floods or droughts. They rely on dam projects that modify water distribution and basin agreements that reallocate political power to manage stress. The basins vary, however, in conflict intensity and effectiveness of water management strategies. The Nile River Basin exhibits low-intensity conflict and has institutionalized collaborative management strategies; the Zambezi River Basin demonstrates medium-intensity conflict with theoretically collaborative initiatives that fall short in practice; the Lake Turkana Basin exemplifies high-intensity conflict, lacking collaborative agreements. In order to address the discrepancy in outcomes, this study asks: what factors contribute to the intensity of conflict surrounding water stress? And, to what extent are water management practices effective in promoting cooperation and preventing conflict? The study concludes that the most intense conflicts occur in rural localities, where social instability is high and resource distribution is uneven. Collaborative agreements and international involvement in water management initiatives increase social stability and decrease conflict intensity by institutionalizing equitable distribution of water in a changing environment.
The Reality of Olympic Sprinting
Authors: Gravelle Patrick
Published: April 2021

Every four years, people from around the world gather together to watch the Summer Olympic Games. It is a time of excitement, unity, and excellent competition. However, it is also a time of inspiration for those watching, to pursue a new passion in sports. Moreover, one of the sports all individuals are so easily drawn is that of sprinting. For there is a great simplicity, yet true power to being one of the fastest men or women on the planet. Whether an individual is competing or modestly observing, the world predominantly desires to see, not just who is fast, but who is the fastest. Moreover, this comes from many with the expectation of a world record from one or all sprinting events. However, are these expectations too high, or should the world feel let down when another Olympics passes without a new sprinting world record to claim? This paper aims to provide the exact answer to that question using the fundamental tools from mathematical statistics and probability.
Best Practices in Low Altitude UAV Mapping for GIS Applications
Authors: Aizikov David
Published: April 2021

Aerial data collection for use in GIS has, in the past, been an expensive undertaking and required significant capital expenditures for metric aerial cameras, aircraft purchase, maintenance, fuel, insurance, and not to mention a significant cost for specialized labour. The advent of Unmanned Aerial Vehicles (UAV’s), and their increasing mainstream use, has created an alternative to conventional aerial photography for the creation of Digital Surface Models (DSMs) and orthophotos. The standards of traditional aerial data collection have been spelt out in long-established guidelines by the American Society of Photogrammetry and Remote Sensing. UAV operators, often non-specialist newcomers to the field, have side-stepped these standards and have no means to ensure the quality and reproducibility of their data. I propose a set of simple best-practices that can be adopted both by UAV operators and their clients to establish some measure of Quality Assurance and Quality Control while maintaining the cost-advantage afforded by UAVs. These practices can be grouped into five main areas: 1) proper camera and lens selection, 2) pre-calibration of cameras used for photogrammetric mapping, 3) establishing accurate ground-control across the area of mapping and not relying on consumer-grade GNSS for air stations, 4) pre-flight calculation of flight parameters based on a clear accuracy requirement, 5) flying at a sufficient height to minimize relief displacement so as to create artifact-free orthophotos. It is hoped that a better understanding of the underlying principles of photogrammetry by both UAV operators and their clients will guarantee the proper implementation of UAVs for high-accuracy GIS data collection in the future.
Photogrammetric Stereoplotting of the Theodosian Palace at the Ancient Site of Stobi, Republic of Macedonia: Reviving a 20th Century Technique for the 21st Century
Authors: Mistry Kavita
Published: April 2021

The so called “Theodosian Palace” at the site of Stobi in the Republic of Macedonia was built in the 4th century AD and was thought to have been the temporary residence of the Roman emperor Theodosius I when he visited the city in 388 AD. This large structure was richly decorated with coloured marbles and mosaics, many of which have been restored over the years. Unfortunately, the walls that were consolidated prior to 2013 are now suffering serious deterioration and a proposal for this work is now being put together. As a necessary component of this proposal, stone-by-stone top-plans and elevation drawings are crucial to map the current state of these walls. Manual drawings using tape measures, plumb bobs and graph paper is immensely time consuming for such a large structure. As an alternative to these methods, we have employed Photogrammetric Stereoplotting to produce an accurate map of the Theodosian Palace. Using hundreds of overlapping photos taken of the walls with ground control points surveyed by a total station, highly accurate (<1cm) 3D data was generated using photogrammetric techniques. Individual stereo-models were then mapped in ADAMTech 3DM Analyst. Stereoplotting offers a faster and cost effective solution than manually mapping on site. By using hardware developed for the videogame industry -- active LCD glasses and high refresh-rate monitors -- mapping in 3D allows us to identify the shape and depth of the rocks and structures more accurately and intuitively than on a two-dimensional orthophoto. Once stereoplotted, the drawings are then inputted into AutoCAD Map 3D.
All-Fiber Photoacoustic Absorption Spectroscopy: Detecting Small Amounts of Dissolved Water in Jet Fuel
Authors: Hatheway Gavin
Published: April 2021

Small concentrations of dissolved water in hydrocarbons such as lubricating engine oils and jet fuels prove detrimental to engine performance. In particular, high altitude operation can cause dissolved water to freeze, thus disrupting fuel flow and ignition temperatures in the engine. A new method to determine the concentration of dissolved water is explored using a high energy laser to excite the dissolved water in the fluid sample. Past methods include rigorous filtration systems or humidity tests that are time consuming and sometimes extremely temperature sensitive. Using a laser is a safe and non-invasive method that takes a matter of minutes for data collection. This Physics thesis is currently in the stage of establishing the detection of water excited by the high power laser. In the coming weeks, this project will progress to analyzing the collected data to calculate the amount of dissolved water in the fluid samples. The time efficiency and precision of this method provides an opportunity to develop a device that may be extended to industry for engine damage mitigation.
Studying the effect of Heartfulness Meditation on Brain Activity
Authors: Gupta Pallavi , Mundluru Jahnavi , Patel Arth , Pathmakanthan Shankar
Published: April 2021

Long-term meditation practice is increasingly recognized for its health benefits. Heartfulness meditation represents a quickly growing set of practices that is largely unstudied. Heartfulness is unique in that it is a meditation practice that focuses on the Heart. It helps individuals to connect to themselves and find inner peace. In order to deepen ones’ meditation, the element of Yogic Energy (‘pranahuti’) is used as an aid during meditation. The purpose of this study was to determine whether consistent EEG effects of Heartfulness meditation be observed in sixty experienced Heartfulness meditators, each of whom attended 6 testing sessions. In each session, participants performed three conditions: a set of cognitive tasks, Heartfulness guided relaxation, and Heartfulness Meditation. Participants during the cognitive portion were required to answer questions that tested their logical thinking (Cognitive Reflective Test) and creative thinking skills. (Random Associative Test) The order of condition was randomly counter balanced across six sessions. It was hypothesized that Heartfulness meditation would bring increased alpha (8-12Hz) brain activity during meditation and better cognitive task scores in sessions where the tasks followed meditation. Heartfulness meditation produces a significant decrease in brain activity (as indexed by higher levels of alpha during the early stages of meditation. As the meditation progressed deep meditative state (as indexed by higher levels of delta) were observed until the end of the condition.  This lead to the conclusion that Heartfulness Meditation produces a state that is clearly distinguishable from effortful problem solving.
Volunteer Mentor Experiences of Mentoring Forced Migrants in the United Kingdom
Authors: Tynewydd Iona , Semlyen Joanna , North Sophie , Rushworth Imogen
Published: April 2021

Research demonstrates the complex nature of supporting forced migrant populations; however, there is almost no research on volunteer experience of supporting forced migrants. This study explored the experiences of volunteer mentors in the United Kingdom. Eight participants were recruited from a single charitable organization. Data were collected using in-depth, semi-structured interviews, and verbatim transcripts were analyzed using Interpretative phenomenological analysis. Four superordinate themes emerged: “paralyzed by responsibility and powerlessness”; “weighty emotional fallout”; “navigating murky boundaries”; and “enriched with hope, joy, and inspiration.” Participants experienced a range of emotions as a result of their mentoring: from distress to inspiration. Findings suggest that focusing on achievable changes helps mentors. The mentoring relationship is hugely important to mentors but also requires careful navigation. The findings suggest that, whilst it is a fulfilling experience, support is required for volunteers mentoring forced migrants. The relative strengths and limitations of the study are considered. Theoretical implications and suggestions for organizations, clinical applications, and future research are provided.
Sistem Monitoring Perilaku Pengendara Mobil Berbasis Internet of Things
Authors: Rahayu Andri Ulus
Published: April 2021

This research is created as a system for a car rental service. The system has monitoring features allowing the car rental owner to monitor the engine condition. The monitoring is performed by using a web interface that could read data from OBD-II that sent by raspberry pi 2. The owner can also monitor the position of the car by using coordinates sent from a smartphone by utilizing the GPS feature. In addition, it also has a reporting feature that allows the owner to track the data history from OBD II about the engine rpm, speed, engine load & temperature. Moreover, the owners can identify the route that has been passed by their car. Likewise, this system provides a program that analyzes the car driver's behavior based on the determined rules. The analysis was conducted based on all data from OBD-II in the database server and all data of driving rules violation performed by the driver. The result is an assessment of the driver as a driving error rate. This study generated 173 data of which 9 were driving rules violations with a 5.20% driving error rate. The report can be obtained by selecting the time interval. It also downloadable and can be sent by e-mail.
A Cardiotocographic Classification using Feature Selection: A comparative Study
Authors: Prasetyo Septian Eko , Prastyo Pulung Hendro , Arti Shindy
Published: April 2021

Cardiotocography is a series of inspections to determine the health of the fetus in pregnancy. The inspection process is carried out by recording the baby's heart rate information whether in a healthy condition or contrarily. In addition, uterine contractions are also used to determine the health condition of the fetus. Fetal health is classified into 3 conditions namely normal, suspect, and pathological. This paper was performed to compare a classification algorithm for diagnosing the result of the cardiotocographic inspection. An experimental scheme is performed using feature selection and not using it. CFS Subset Evaluation, Info Gain, and Chi-Square are used to select the best feature which correlated to each other. The data set was obtained from the UCI Machine Learning repository available freely. To find out the performance of the classification algorithm, this study uses an evaluation matrix of precision, Recall, F-Measure, MCC, ROC, PRC, and Accuracy. The results showed that all algorithms can provide fairly good classification. However, the combination of the Random Forest algorithm and the Info Gain Feature Selection gives the best results with an accuracy of 93.74%.
Studies on the effect of sodium arsenate & cadmium chloride on Pithophora oedogonia (Mont.) Wittrock 1877
Authors: Karmakar Puspendu , Keshri Jai Prakash
Published: April 2021

Cadmium and Arsenic are heavy metals although not common in our environment, its threat in certain places are aggravated due to anthropogenic factors. To know its critical role on plants the investigation was made using Na2HAsO4 and CdCl2 treatment on Pithophora oedogonia (Mont.) Wittrock 1877. The observations were made after 14 days of treatment. The changes were noted. In both cases, the treated cells exhibited gradual disruption of cell wall and cell membrane. The chlorophyll content initially increased and finally decreased due to the notable destruction of chloroplasts in both treated cells. A profuse number of akinetes were observed at 100 ppm and 150 ppm of Na2HAsO4 and CdCl2 treated media. Decrease in protein content was started at 100 ppm in both cases. The lipid content initially decreased at 50 ppm and at 100 ppm lipid profile increased in terms of toleration to the Na2HAsO4 and CdCl2 stress. Pithophora oedogonia (Mont.) Wittrock 1877 exhibited more sensitivity to CdCl2 stress & showing abrupt changes in chlorophyll-a and chlorophyll-b production. The carotenoid production shown more sensitivity in Na2HAsO4 stress. Total phenol production was decreased initially and at 200 ppm CdCl2 stress had shown significant enhancement than the control set but at the 200 ppm of Na2HAsO4 shown inhibitory effect.
Uraria picta: A comprehensive review on evidences of utilization and strategies of conservation
Authors: Bhusare B. P. , Ahire M. L. , John C. K. , Nikam T. D.
Published: April 2021

Uraria picta (Jacq.) DC. (Prishnaparni) is one of the most important medicinal plants used in different traditional systems of medicines including the Ayurveda and Traditional Chinese medicine. The major use of this plant was found in the most popular Ayurvedic formulation “Dashmula” and in several many other important Ayurvedic formulations. IUCN placed this woody herb in the least concern category as per version 3.1. It has extensive therapeutic uses and pharmacological activities. Though this plant is a source of many phytochemicals, the uses are uncertain because the raw plant parts or crude extracts are being used in all formulations. Therefore, extensive investigations are necessary to focus on the identification of these phytochemicals. It is an urgent need to give special attention to collecting various aspects and more efforts are required in all areas for utilization and conservation of this valuable medicinal herb. Herein, a compilation of all information with various aspects has been presented, including the authors published work on Uraria picta. This review pursues attention towards biological activity, phytochemical profile, utilization, propagation and conservation of Uraria picta.
New Flavonoids from Saudi collection of Tephrosia purpurea L. (Pers.)
Authors: Abdel-Kader Maged , Alqarni Mohammed , Foudah Ahmed
Published: April 2021

Phytochemical investigation of the chloroform fraction obtained from Saudi collection of Tephrosia purpurea L. (Pers.) resulted in the isolation of four new and two known flavonoid derivatives. Three of the new compounds were 5-deoxyflavonoid derivatives identified as tephropurpugazanin (1), 4’’-hydroxyapollinin (4), epi-tephroapollin E (5) as well as (-)-tephropurpulin A (2). The known compounds were identified as 3,7-dihydroxy-8-methoxy-2-(4-methoxyphenyl)-4H-1-benzopyran-4-one (3) and tephroapollin E (6). Structures were elucidated utilizing different spectroscopic tools including UV, optical rotation, 1D- and 2D-NMR as well as HRESIMS.
SOLID SOLUTIONS OF HETERO- AND HOMO- SUBSTITUTIONOF THE AIIIBV-CDTE, AIIBVI-CDTE SYSTEMS. PHYSICAL AND CHEMICAL PROPERTIES
Authors:   Omsk State Technical University, Omsk, Russia, Kirovskaya I. A. , Ekkert А. О. ,   Omsk State Technical University, Omsk, Russia, Ekkert R. V. ,   Omsk State Technical University, Omsk, Russia, Chernous N. V. ,   Omsk State Technical University, Omsk, Russia, Kropotin О. V. ,   Omsk State Technical University, Krasheninin V. I. ,   Kemerovo State University, Kemerovo, Russia
Published: April 2021

В областях взаимной растворимости исходных бинарных соединений (InP и СdTe, ZnS и CdTe), по специально разработанным методикам получены твердые растворы систем InP-CdTe, ZnS-CdTe, аттестованные на основе результатов выполненных рентгенографических, микро-, электронно-микроскопических, УФ-, ИК-спектроскопических исследований как твердые растворы замещения с кубической структурой сфалерита. Обогащена информация о многокомпонентных алмазоподобных полупроводниках, включая впервые определенные значения среднего размера (dср), среднего числа (nср) преобладающих частиц в компонентах систем, значения их ширины запрещенной зоны, структуру поверхностей. Изучены кислотно-основные свойства поверхностей полученных твердых растворов и бинарных компонентов систем, которые отнесены к слабокислой области (pHизо < 7). Высказаны и доказаны прогнозы о повышенной активности таких поверхностей к основным газам. Установлены концентрационные зависимости изученных объемных и поверхностных свойств.
SENSOR OF THE ELECTRIC FIELD STRENGTH VECTOR COMPONENTS IN THE FORM OF THREE MUTUALLY PERPENDICULAR SQUARE PLATES
Authors:   Omsk State Technical University, Biryukov S. V. , Kolmogorova S. S. ,   Sanкt Petersburg State Forest Technical University, Sanкt-Petersburg, Russia, Kolmogorov A. S. ,   Sanкt Petersburg State Forest Technical University, Sanкt-Petersburg, Russia
Published: April 2021

Разработка средств измерений напряженности электрического поля является не простой задачей. Это связано, прежде всего, с высокими метрологическими требованиями, предъявляемыми к датчикам напряженности электрического поля. Существующее большое многообразие датчиков напряженности различных форм (кубическая, цилиндрическая, сферическая), принципа действий (направленного и ненаправленного приема) и особенностей конструкции (корпусная, безкорпусная) не обеспечивают желаемых метрологических характеристик. Поэтому работа, связанная с разработкой датчиков напряженности электрического поля не стоит на месте и является актуальной. Целью исследования является создание безкорпусного трехкоординатного датчика напряженности электрического поля, расчет которого был бы прост как для корпусных, а простота конструкции и малая масса как у безкорпусных датчиков. Созданный в результате исследований датчик конструктивно представляет три взаимно перпендикулярные квадратные диэлектрические пластины, основаниями которых являются квадратные проводящие чувствительные элементы...
THE IMPROVEMENT OF UKRAINIAN CORPORATE SECTOR EUROINTEGRATION MECHANISM
Authors: Bieliai Maksym
Published: April 2021

Стаття містить критичний аналіз процесу євроінтеграції України в розрізі інтеграції корпоративного сектору. Метою дослідження є вдосконалення механізму євроінтеграції корпоративного сектору України. Для досягнення поставленої мети проведено GAP-аналіз існуючого механізму євроінтеграції (в аспектах інтеграції корпоративного сектору). Виявлено, що відхилення корпоративного сектору України від ЄС є середнім, саме тому інтеграція корпоративного сектору України потребує додаткової уваги. Обґрунтовано, що недостатньо лише державної підтримки інтеграційного процесу. Запропоновано альтернативний підхід до формування механізму євроінтеграції корпоративного сектору України, що базуються на колективній та солідарній відповідальності. Розроблено рекомендацій для вдосконалення наявного механізму євроінтеграції корпоративного сектору України, який включає цілі, завдання та інструментарій держави, корпоративного сектору, громадського сектору та вищих навчальних заходів. Визначена мотивація та вигоди від участі зазначених стейкхолдерів в процесі євроінтеграції корпоративного сектору.
IMPROVEMENT OF THE PROJECT RISK MANAGEMENT SYSTEM IN IT COMPANIES OF UKRAINE
Authors: Khaustova Viktoriia , Kozyreva Olena , Ivanov Mykola
Published: April 2021

У статті запропоновано удосконалення системи управління проектними ризиками в ІТ-компаніях України у сучасних економічних умовах. Зазначено, що в умовах сьогодення всі розвинуті країни світу та країни, що прагнуть до розвитку, орієнтовані на інновації та розвиток ІТ-технологій як найбільш перспективних напрямів економічного зростання. Відзначено, що практично у всіх ІТ-компаніях основним процесом загальної системи управління організацією є «управліня проектами», а система «управління ризиками» вважається допоміжним, незважаючи на те, що проектні ризики мають величезний вплив на досягнення основних цілей проекту та рентабельність проекту загалом. Зроблено висновок про необхідність удосконалення існуючої системи управління проектними ризиками в ІТ-компаніях України на основі удосконалення оцінки проектних ризиків та визначення послідовності управлінських дій у разі виникнення ризикових ситуацій по проектах.
The issue of managing technical project teams within European Companies
Authors: Pietrzak Juliusz
Published: April 2021

The article deals with the problem of the relationship between an employee and a project manager. The research aims to examine the employee – project manager relationship in the projects of European companies. The article consists of two main parts. The first is theoretical, the second empirical. The empirical data was collected by conducting semi-structured interviews with five project managers and five team employees.
Governance and Management of Coasts and Ocean in the face of uncertainty. A Guide for Decision Makers
Authors: Azuz-Adeath Isaac ,   CETYS
Published: April 2021

For Mexico, which has under its control more than three million square kilometers of maritime surface, its oceans and coasts are still the elephant in the kitchen of politics territorial, environmental, socioeconomic, administrative, scientific and cultural public. It is an extensive and heterogeneous work in terms of themes and scope. The 42 chapters cover reviews of international experiences in governance, coastal erosion studies, meteorology and education, from coastal management to postgraduate studies. The problems of epicontinental wetlands, socio-ecological problems are also exposed, and policy instruments for the conservation, management and restoration of marine species and ecosystems are analyzed. They also touch on issues of introduction of clean energy in coastal areas, fisheries and aquaculture and current issues such as sargassum and plastics on coasts and seas, highlighting the lack of specific information on this issue on the Mexican seas. Scenarios and impacts of climate change and different adaptation possibilities are also addressed. A kind of common denominator is the presentation of lessons learned and recommendations in terms of management and socio-environmental organization. Although some of the policy instruments they mention are not necessarily current, the analyzes and reflections make it possible to take advantage of the experiences.
Evolution of Vernacular Housing in a Rural Community (Sotuta, Yucatán, Mexico))
Authors:   CINVESTAV, Cruz Cortez Julian , Fraga Julia , Munguía Rosas Miguel A.
Published: April 2021

With a simple glance in the self-service stores of the city or in the handicraft stores of the archaeological zones we will be able to realize that the Mayan dwelling is being represented in the artisan showcases as if it were an object of the past or a rarity of the dimension rural culture, a kind of "Yucatecan curiosity" What is behind all this representation? This is the answer that we want to spread to the widest public.
Agenda Topics for Sustainability of Mexican Coasts and Oceans
Authors: Sánchez-Gil Patricia
Published: April 2021

This book must be considered, as a representative thematic synthesis for understanding the dynamics of a transitional system, great heterogeneity of habitats and associated high biodiversity, ranging from the lower basin of rivers, wetlands, lagoons-estuaries, estuarine plume and adjacent marine areas. It is a document of analysis on the interrelations and connectivities of this great ecological mosaic, strongly influenced by natural variables, processes and coastal cycles that condition its functional structure; but also on the presence and intervention of activities socio-economic, energy trends, and global changes. Topics leading to reflection on the environmental sustainability of coastal development and management needs for integrated management.
Electrical Networks: Wholesale Electricity Market in Mexico. State of the art
Authors:   CFE, Vega de la Mora L.A. , Angeles-Camacho C. , Melchor Quinto A. Y.
Published: April 2021

Changes in the Mexican electricity market is accompanied by large challenges in the country's economic sector. In the first instance, the need to create a financial market where agents participate of said sector, establishing financing mechanisms and clear rules of action, as well as institutions that safeguard the realization and compliance of operations between them. As in traditional financial markets, market participants will seek to maximize their returns, trying to limit the risks to which they are exposed, related to their operation itself and with the inherent characteristics of the good traded, electricity. The generation of electricity with renewable sources, the correct operation of the electricity market and greater use of electric vehicles, will achieve in Mexico a successful energy transition, where less hydrocarbons are used pollutants to use more clean energy, inheriting future generations a better world.
Atlas of Marine Mammal Distribution and Abundance in Mexican Waters
Authors:   CICESE, Heckel Gisela , Ruiz Mar M.G. , Schramm Y. , Gorter U.
Published: April 2021

Marine mammals are a group of charismatic megafauna, capable of awakening fascination in most people, which makes them especially visible when natural resources or ecosystems are exploited, as is the case with the generation of energy using the sea. There are 131 species of marine mammals in the world, including whales, dolphins, sea lions, seals, walruses, sea otters, polar bears, manatees and dugongs. Mexico’s marine environment is megadiverse, with 38 cetacean species (eight mysticeti or baleen whale species, 30 odontoceti or toothed whale species, dolphins and porpoises), four pinnipeds (two seal species and two sea lion species), one sea otter sub-species and one manatee subspecies (
Anuria as a Chief Presentation of Takayasu Arteritis, a Case Report
Authors:   Department of Medicine, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Saudi Arabia, K Alrasheed Sara , Alheijani Basel ,   Department of Medicine, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Saudi Arabia, Alzahrani Rahmah ,   Department of Medicine, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Saudi Arabia, Alshehri Shaker ,   Department of Radiology, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Saudi Arabia
Published: April 2021

Takayasu vasculitis is a rare type of large vessel vasculitis that primarily affects the aorta and its main branches; signs and symptoms are usually due to systemic inflammation or ischemia of an organ or limb, depending on the group of blood vessels involved. In addition, Takayasu arteritis is associated with increased platelet and coagulation activity, leading to a hypercoagulable state and thrombus formation. We report a case of a 47-year-old male who presented with a history of complete anuria for 3 days and was found to have progressively worsening kidney function. Renal Doppler ultrasound confirmed the presence of bilateral renal artery thrombosis, while Contrast- Enhanced Computed Tomography (CECT) of the abdomen and pelvis showed extensive abdominal aortic thrombosis with radiological findings consistent with large vessel vacuities. After catheter-directed thrombolytic therapy of the renal arteries, the patient started producing urine and his kidney function significantly improved. Later, Positron Emission Tomography scan (PET) confirmed large vessel Takayasu arteritis. Echocardiography showed no intracardiac thrombus, along with an extensive work up for thrombophilia, as autoimmune and vasculitis serology came back negative. This is an extremely rare presentation of Takayasu arteritis, with an unusual recovery of acute renal failure after delayed anuria due to bilateral renal artery thrombosis.
Metabolic and Microbial Characterizations for the Gastrointestinal Digesta of the Zoo Colobus guereza
Authors:   Department of Food and Life Sciences, Ibaraki University, College of Agriculture, Japan, A Toyoda , N Shionome ,   Department of Food and Life Sciences, Ibaraki University, College of Agriculture, Japan, D Kohari ,   Department of Food and Life Sciences, Ibaraki University, College of Agriculture, Japan, S Iida ,   Hitachi Kamine Zoo, Japan, H Masato ,   4Hitachi Kamine Zoo, Japan, N Namae ,   4Hitachi Kamine Zoo, Japan, S Nakamura ,   Kyoto Institute of Nutrition & Pathology, Japan, T Tsukahara ,   Kyoto Institute of Nutrition & Pathology, Japan
Published: April 2021

Abyssinian black-and-white colobus (Colobus guereza) inhabits west, central, and east Africa and lives in social groups in the rain forests. Colobus guereza has a unique foregut digestive system similar to that of ruminants and absorbs organic acids, including Short-Chain Fatty Acids (SCFAs), as energy sources derived from microbial fermentation of plant materials in the gastrointestinal tract. In this study, the gastrointestinal metabolic and microbial features of a male Colobus guereza singly housed in a zoo were characterized, and each digesta from each segment of the digestive tract was collected and subjected to biochemical, microbiome, and metagenome analyses. In this case report, high levels of acetate and propionate were observed in the foregut, while a relatively high level of lactate was detected in the small intestine. Moreover, in the hindgut and the feces, acetate was dominant compared to the other SCFAs. SCFAs analysis indicated that Colobus guereza obtains energy via SCFAs, especially acetate, fermentation in the foregut and hindgut. A metagenome analysis revealed that each part of the digestive tract of Colobus guereza has a unique microbiota. Similar to ruminants, Prevotella and Selenomonas were the dominant genera in the foregut, which may indicate microbial fermentation of plant materials in the foregut of Colobus guereza.
Implementation of the QUBE Force Field in SOMD for High-Throughput Alchemical Free Energy Calculations
Authors: Nelson Lauren , Bariami Sofia , Ringrose Chris , Horton Joshua , Kurdekar Vadiraj , Mey Antonia , Michel Julien , Cole Daniel
Published: April 2021

The quantum mechanical bespoke (QUBE) force field approach has been developed to facilitate the automated derivation of potential energy function parameters for modelling protein-ligand binding. To date the approach has been validated in the context of Monte Carlo simulations of protein-ligand complexes. We describe here the implementation of the QUBE force field in the alchemical free energy calculation molecular dynamics simulation package SOMD. The implementation is validated by demonstrating the reproducibility of absolute hydration free energies computed with the QUBE force field across the SOMD and GROMACS software packages. We further demonstrate, by way of a case study involving two series of non-nucleoside inhibitors of HIV-1 reverse transcriptase, that the availability of QUBE in a modern simulation package that makes efficient use of GPU acceleration will facilitate high-throughput alchemical free energy calculations.
Asymmetric Synthesis of Homoallylic Alcohols Featuring Vicinal Tetrasubstituted Carbon Centers via Dual Pd/Photoredox Catalysis
Authors: Xue Sijing , Limburg Bart , Ghorai Debasish , Benet Buchholz Jordi , Kleij Arjan. W.
Published: April 2021

Dual palladium/photoredox-catalysis provides an effective method for the asymmetric synthesis of vicinal a,b-tri/tetra- or a,b-tetra-substituted homoallylic alcohols. Regio- and enantioselective decarboxylative allylic alkylation of vinyl cyclic carbonates is reported using Hantzsch type esters as radical precursors. The developed methodology combines the use of versatile and accessible reagents and can be operated under mild reaction conditions giving the target molecules in appreciable to good yields, high branch-selectivity and appreciable enantiomeric ratios of up to 94:6. This protocol marks a rare example of the use of prochiral electrophiles for the creation of vicinal congested carbon centers.
Alkyl vs Aryl Modifications: A Comparative Study on Modular Modifications of Triphenylphosphonium Mitochondrial Vectors
Authors: Ong How Chee , T.S. Coimbra João , Ramos Maria João , Xing Bengang , Fernandes Pedro Alexandrino , Garcia Felipe
Published: April 2021

Triphenylphosphonium (TPP+) moieties are commonly conjugated to drug molecules to confer mitochondrial selectivity due to their positive charge and high lipophilicity. Although optimisation of lipophilicity can be achieved by modifying the length of the alkyl linkers between the TPP+ moiety and the drug molecule, it is not always possible. While methylation of the TPP+ moiety is a viable alternative to increase lipophilicity and mitochondrial accumulation, there are no studies comparing these two separate modular approaches. Thus, we have systematically designed, synthesised and tested a range of TPP+ molecules with varying alkyl chain lengths and degree of aryl methylation to compare the two modular methodologies for modulating lipophilicity. The ability of aryl/alkyl modified TPP+ to deliver cargo to the mitochondria was also evaluated by confocal imaging with a TPP+-conjugated fluorescein-based fluorophore. Furthermore, we have employed molecular dynamics simulations to understand the translocation of these molecules through biological membrane model systems. These results provides further insights into the thermodynamics of this process and the effect of alkyl and aryl modular modifications
Bio analytical method development and validation for Ezetimibe and Pitavastain and its applications to pharmacokinetic studies in Rabbit plasma by using LCMS/MS
Authors: Potturi Ramadevi  , Kantipudi Rambabu
Published: April 2021

For the gradation of Ezetimibe and Pitavastain in rabbit plasma, a highly sensitive and simple LC-MS/MS assay was developed and witnessed. The chromatographic conditions are isocratic with a waters symmetry C18 (150 x 4.6 mm, 3.5) column in isocratic mode. The detection was carried out using a mobile phase of 0.1 percent formic acid and 60:40 acetonitrile, and the detection was carried out using MS in a positive mode of electrospray ionisation. The valid approach was checked with a linear range of 10-200 ng/ml Ezetimibe and 2-40 ng/ml Pitavastain. The intraday and interday precision values were found to be within reasonable limits. The liquid extraction process is used to remove these drugs from rabbit plasma. And these drugs have been shown to be stable in freeze-thaw, autosampler, and benchtop tests in the future. The fluid chromatography coupled mass spectrometry strategy was approved by the US Food and Drug Administration for quantification of Ezetimibe and Pitavastain in rabbit plasma using D4–ezetimibe and D4–pitavastain as within norms using LC-MS consolidated with quadrupole spectrometer by electro shower ionisation process. The aim of this study is to evaluate the applicability of this approach to ezetimibe and pitavastain at different evaluation levels while taking into account various factors such as instrument stability, precision, and accuracy, sample preparation techniques, instrument calibration, recovery, and matrix effect by using Ezetimibe and Pitavastain, as well as their internal guidelines.