bluuebunny/crossref_metadata_2025 huggingface dataset:
WITHDRAWN: Enhancement of Hearing Aid System using Optimized Wolf Based Variable Bandwidth Filter
Authors: Rawandale Ujjwala S. , Kolte Mahesh T
Published: May 2022

In recent times, hearing loss is a challenging task, to minimize the risks the application-based Hearing Aids (HA) system was introduced. In this research, the HA system was designed with the use of several filters to reduce the hearing loss challenges such as signal noise, etc. Besides, the filter bank scheme involves a limited quantity of sub-bands, which have similar or dissimilar bandwidths. Previously several methods are developed to enhances the HA system. Nevertheless, computational complexity and power utilization are increased when improving the filter quantity. This paper introduces a novel Wolf-based Fractional Delay Variable Bandwidth Filter (W-FDVBF) to improve the hearing obstacles by optimizing the filter parameters. Here, the wolf optimization parameters are tuned with filter bank parameters to reduce the power consumption and complexity. Moreover, the proposed W-FDVBF is implemented in MATLAB and Xilinx software, also the performance of the proposed filter was verified using Field Programmable Gate Array (FPGA) accelerator. Finally, the obtained results are compared with other existing approaches and have gained better outcomes by attaining less power and matching error. Therefore, the attained parameters are improved the HS system performance in terms of matching error, power, flip flop utilization, etc
Investigation of the species composition and harmfulness of dominant phytophages of onions in the Right-Bank Forest-Steppe of Ukraine
Authors: Kudla Volodimir , Tkalenko Hanna , Ihnat Vytalya
Published: May 2022

The research is aimed at studying the species composition, dynamics of the number and harmfulness of dominant pests, which is extremely important for the development and improvement of elements of the onion protection system. After all, the analysis of literature sources showed insufficient information about the distribution and harmfulness of the main phytophages under modern conditions of growing onions in the Right Bank Forest-Steppe of Ukraine.

We conducted the monitoring of the phytosanitary condition of onion crops during 2017–2020 and determined the species composition of dominant phytophages. We studied the complex of soil pests: larvae of Melolontha sp., the population density of which over the years of research was 0.8–2.5 specimens/m2, larvae of Elateridae sp., or click beetles (wireworms) – 0.9–2.2 specimens/m2 and Gryllotalpa gryllotalpa L. – 2.5 specimens/m2. Dominant species of phytophages in onion crops included onion fly (Delia Antigua Mg.), onion thrips (Trips tabaci Lind.), and Ceuthorrhynchus jakovlevi Schultze.

The four most vulnerable phases of growth and development of onions before colonization and damage by major phytophages were identified:

1) phase of leaf development (a primary shoot) (ВВСН 1–19);

2) phase of the beginning of thickening of leaf base – bulb formation (ВВСН 41–43);

3) phase of bulb formation – beginning of leaf splitting (ВВСН 45–47);

4) phase of the completion of growth and development (state of physiological rest) (ВВСН 48–49)
Arsenic clustering in arsenian pyrite: A combined photoemission and theoretical modeling study
Authors: Mahjoub Reza , Krasowska Marta , Stanford Nikki , Skinner William , Forson Philip
Published: May 2022

Arsenian pyrite is known to have a strong association with gold in most auriferous refractory deposits, and thus understanding the chemical speciation of arsenic in localized environments in arsenian pyrite provides an important basis for determining its reactivity and mobility. However, arsenic is fast-oxidizing among elements in the Fe-As-S system and hence it may exist in various chemical states, which renders it difficult to establish arsenic nature under pristine conditions, particularly in arsenian pyrite. Herein, arsenian pyrite samples were analyzed on a synchrotron soft X-ray spectroscopy beamline under ultrahigh vacuum conditions, and As-3d as well as S-2p spectra were collected. A comparison between the spectrum of bulk As-3d in the samples with its bulk counterpart in arsenopyrite revealed a 0.6 eV shift toward lower binding energies. This observation was similar to loellingite (FeAs2), where the binding energy shift was attributed to high electron density on As of the As-As dimer. Formation of As clusters resulting in comparable binding energy shifts was also proposed from the spectroscopic studies. The experiments were complemented by a series of first-principles calculations simulating four experimentally observed pyrite surfaces where surficial S atoms were randomly substituted by As. As such, six arsenian pyrite crystal surfaces were modeled, two of which constituted surficial As clusters replacing both S and Fe atoms. The surfaces were geometrically optimized, and surface energies were calculated along with the corresponding electronic structure providing a detailed distribution of partial charges for surficial atoms obtained from Löwdin population analysis. The calculated partial charges of atoms located at the surface arsenian pyrite indicated that while the electron density on the As atom of As-S dimers in arsenian pyrite is less negative than the As in bulk arsenopyrite, it is more negative for the As atom of As-As dimers, which were only seen in the surficial As clusters. This validated the description of As presence in arsenian pyrite as local clusters inducing localized lattice strain due to increased bond distances. Our findings offer a good background for future studies into the reactive sites in arsenian pyrite and how that compares with associated minerals, arsenopyrite, and pyrite.
Ontology of Nigerian Local Governments: A Functional Approach towards the Global Pattern
Authors: Chioke Stephen
Published: May 2022

From a functionalist perspective, every human society is made up of different social rankings, groups, units and organisations crafted to serve different purposes. The functional approach to the ontological perspective on local government is not about the call for absolute autonomy of local government. Thus, the main problem of this paper is to investigate the ontology of Nigerian local government from a functionalist approach. Using qualitative data, the paper reviewed the: true ontology of an ideal local government from a global parallax; factors affecting the ontology of Nigerian local governments; and practicable ways of making Nigerian local governments align with the global pattern of local governance. Godfatherism; corruption; bias, favouritism and nepotism; bad governance; inefficient service delivery; and electioneering problems were highlighted as the major factors affecting the ontology of Nigerian local governments. The paper submits that we must arise from slumber and as such, no room for excuses. Other revelations were thrown up as regards the true ontology of local government and the practicable ways of making Nigerian local government conform to global pattern. The paper concluded that, Nigeria local government is a failed public bureaucracy asking for the masses’ collective attention in form of revitalization. This attention if given will cause a paradigm shift and reasonably refurbish the local government system/structure to fit into the ontological shape of a modern day local government that is compliant with international best practices. This study has its implication on future research and practice.
AMS-02 antiprotons and dark matter: Trimmed hints and robust bounds
Authors: Calore Francesca , Cirelli Marco , DEROME Laurent , Genolini Yoann , Maurin David , Salati Pierre , Serpico Pasquale Dario
Published: May 2022

Based on 4 yr AMS-02 antiproton (\bar{p}p‾)
data, we present bounds on the dark matter (DM) annihilation cross
section vs. mass for some representative final state channels. We use
recent cosmic-ray propagation models, a realistic treatment of
experimental and theoretical errors, and an updated calculation of input
\bar{p}p‾
spectra based on a recent release of the PYTHIA code. We find that
reported hints of a DM signal are statistically insignificant; an
adequate treatment of errors is crucial for credible conclusions.
Antiproton bounds on DM annihilation are among the most stringent ones,
probing thermal DM up to the TeV scale. The dependence of the bounds
upon propagation models and the DM halo profile is also quantified. A
preliminary estimate reaches similar conclusions when applied to the 7
years AMS-02 dataset, but also suggests extra caution as for possible
future claims of DM excesses.
Factors influencing decisions of satellite office users in the new normal era: Evidence from Indonesia
Authors: Muftiasa Afdol , Purnama Sari Diah , Adi Wibowo Lili , Rahayu Agus
Published: May 2022

COVID-19 affects all aspects of life, including work patterns, work behavior, and daily routines. It has also prompted organizations to change how they operate, working more from outside the office due to government restrictions. Therefore, many activity restrictions were introduced due to the COVID-19 pandemic; however, office activities must continue. This creates a new need for the availability of satellite offices as a solution for companies and employees in carrying out organizational activities. This paper analyzes factors that influence the selection of satellite offices during the COVID-19 pandemic and the new normal. Quantitative research was used in this study; the data were analyzed using descriptive analysis methods and cross-tabulation analysis. Data were collected by distributing questionnaires to 65 users of the satellite offices in Jakarta. The results show that the majority of users choose a satellite office by considering the proximity to their place of residence, and room comfort, which is then followed by the availability and stability of internet access. In general, satellite office users also consider the price and choose the daily billing system over other billing systems. Thus, workspace providers in the satellite office can formulate the right strategy to attract satellite office users by choosing a proper location, fulfilling room comfort facilities, price positioning, and the billing system used.
Influence of financial support of human capital development on economic growth
Authors: Chugunov Igor , Makohon Valentyna , Kaneva Tatjana , Adamenko Iryna
Published: May 2022

The COVID-19 pandemic has intensified the issue of strengthening the financial support of human capital development and enhancing its impact on economic growth. This study aims to assess the impact of financial support of human capital development in terms of public spending on health and education on economic growth. Economic-statistical methods and correlation-regression analysis are used to determine the impact of the share of public spending on health and education in GDP on real GDP, and to assess the characteristics of financial support of human capital development. The study reveals evidence of a link between the level of public funding for human capital development and real GDP. At the same time, for Ukraine and the countries-full members of the Commonwealth of Independent States, in particular Armenia, Azerbaijan, Kazakhstan, Moldova, Belarus, the Kyrgyz Republic, Uzbekistan, and Russia, the results of the study were mixed. In recent years, with the share of public spending on health and education in GDP growing by 1 percentage point, real GDP has grown in 4 and 5 countries, respectively, and decreased in 5 and 4 countries out of 9 studied. The results show that a significant deterrent to strengthening the financial support of human capital development and its impact on economic growth is a significant level of uncertainty in economic processes, which determines the importance of revising the forms and methods of public financing of human capital.
Desde os antigos engenhos de fabricar açúcar
Authors: Arnaut Adriana Andrade , Santos José Gomes dos , Menezes Paulo Márcio Leal de
Published: May 2022

Santana do Catú possuía condições profícuas para plantar cana-de-açúcar e produzir açúcar. Passaram-se séculos e, no atual município de Catu, existem propriedades que atravessaram o tempo, carregando na toponímia marcas de povos que habitaram esse território. A cartografia histórica proporcionou o resgate desses traços identitários, através da listagem e classificação toponímica das propriedades, usando a comparação espacial das fazendas e engenhos em sistema de informação geográfica (SIG). Os topônimos de origem portuguesa prevalecem neste território, identificando-se também raízes indígenas e africanas. Observa-se a conexão dos nomes das propriedades com o lugar, refletidos, sobretudo, por elementos vegetais. Os topônimos registrados nos mapas revelam a forma de viver da população, retratando hábitos e aspectos do espaço, do período de elaboração do documento cartográfico.
Propagation characteristics of vibrations due to rock blasting in silt-rock strata
Authors: Yin Tao , Zhou Chuanbo , Zheng Changqing , Guo Ziru , Li Hongwei , He Zhiwei
Published: May 2022

The geological effects of rock blasting in silt-rock strata are complex, and the vibrations caused by the blasting threaten the safety of inhabitable areas. Based on measured data for the vibrations at the site and dynamic finite element simulations, the propagation characteristics of vibrations in silt-rock strata were studied. The propagation of the vibrations of the surface, the propagation characteristics of the vertical vibration velocities from the surface to the tunnel, and the attenuation of the blasting vibrations along the tunnel’s axis were analyzed. The results of this study are as followings: in the direction of the tunnel’s axis and in the direction vertical to the tunnel’s axis, the peak particle velocities (PPVs) of the surface decreases with increasing horizontal distance from the explosion source. The magnitudes of the PPVs of the surface under five working conditions are the same when the surface particle is right above the center of the explosion source and 10 m away from the center. In the vertical direction from the surface to the explosion source, the vertical direction of the silt-rock strata and the vertical direction of the silt stratum, the PPVs increases gradually with the increasing distance from the surface in the vertical direction. The change in the thickness of the artificial fill and silt in the shield interval strata has little effect on the PPVs along the tunnel’s axis. The results of this study provide a reference for identifying the safety distance around the inhabitable areas of rock blasting under similar geological conditions.
Stormwater utility fees and household affordability of urban water services
Authors: Porse Erik , Kerner Maureen , Shinneman Joel , Kaplan Jonathan , Stone Samuel , Cadenasso Mary L.
Published: May 2022

Stormwater utility fees provide dedicated revenues for managing stormwater. In setting fees, household-level affordability should be considered. Existing research does not address methods to evaluate the affordability of stormwater utility fees, especially alongside other household water costs. This paper aims to fill that gap. We present a scenario-based approach to evaluate household affordability of stormwater utility fees in a municipality, which considers other essential household water service charges. We estimate the relative contribution of stormwater utility fees to total household water costs and evaluate affordability across income brackets by integrating data for socioeconomic status, land use, water utility charges, and impervious surface cover. Using data for a case study region, results indicate that stormwater utility fees are small contributors to overall household urban water costs and comprise no more than 2% of the median household income across nearly all income quintiles. For low-income households, stormwater charges only exceed 1% of the household income for the lowest-income brackets (<$20,000) and still represent a small portion of household water costs. The analysis demonstrates a generalizable approach that can be applied everywhere when evaluating a stormwater utility fee as a funding strategy.
Влияние интенсивности возбуждающего излучения на люминесцентные свойства нанопорошков NaYF-=SUB=-4-=/SUB=- : Yb/Tm
Authors: Буриков С.А. , Филиппова Е.А. , Федянина А.А. , Кузнецов С.В. , Пройдакова В.Ю. , Воронов В.В. , Доленко Т.А.
Published: May 2022

The paper presents the results of the study of the dependences of the intensity of the bands of upconversion luminescence of β-NaYF4:Yb3+/Tm3+ complexes in suspensions in DMSO on the intensity of exciting radiation. Ranges of changes in the intensity of excitation have been established, in which either the processes of energy transfer from the sensitizer ion to the activator ion or the decay of intermediate levels of activator ions dominate.
Лазерная доставка и спектральное исследование современного хлоринсодержащего препарата для лечения онихомикоза при лазерном воздействии с длиной волны 450 nm
Authors: Беликов А.В. , Федорова Ю.В. , Козлова А.Д. , Смирнов С.Н.
Published: May 2022

The possibility of active laser delivery of a modern chlorine-containing photosensitizing drug “Chloderm” (Chloderm, Russia) under the nail plate by laser radiation with a wavelength of 450 nm for the purpose of photodynamic therapy of onychomycosis is studied. In an in vitro experiment, sequential laser microporation of the nail plate and active delivery of the drug under the nail plate by this laser radiation with an intensity of up to 200 W/cm2 were investigated. The results of studying the absorption spectra of an aqueous solution of Chloderm in the range of 400–900 nm before and after exposure to 450 nm laser radiation are presented. It is demonstrated that sequential laser microporation and active laser drug delivery under the nail plate is possible at laser radiation intensity greater than 178 W/cm2. It is shown that the maximum rate and efficiency of nail plate ablation by 450 nm laser radiation is achieved at an intensity of 200 W/cm2 and is 2750 ± 30 μm/s and 1.47 ± 0.05 μm/mJ, respectively. The delivery rate of Chloderm under the nail plate is 1.15 ± 0.1 mg/s. It is shown that exposure to 450 nm laser radiation at the intensity of 200 W/cm2 for a time sufficient to deliver the drug under the nail plate does not change the extinction coefficient of the drug at the laser wavelength and slightly changes the conformational state of Chloderm.
Особенности эффекта Фарадея в редкоземельном ортоалюминате DyAlO-=SUB=-3-=/SUB=-
Authors: Валиев У.В. , Малышева М.Е. , Рахимов Ш.А. , Султонов О.З.
Published: May 2022

Annotation
The magnetic susceptibility and the Faraday effect of single-crystal DyAlO3 samples have been studied within the temperature range 78–300 K along the crystallographic axis of "easy" magnetization - b of an orthorhombic crystal. The Faraday rotation have been extracted from the temperature and spectral dependences of the rotation angles of the major axis of the polarization ellipse of light Θ measured in the wavelength range 440–750 nm. From the linear dependence of the Verdet constant V on the magnetic susceptibility of the DyAlO3 crystal at the wavelength 506 nm, the value of the "paramagnetic" Verdet constant C of the dysprosium orthoaluminate have been calculated. Its value was (7.0 ± 0.3) × 103 min / cm × Oe, which is several times higher than the corresponding value determined from measurements of the Faraday effect in the rare-earth dysprosium garnet-aluminate. It have been found that the contribution of the excited d-states of the Dy3+ ion in the low-symmetric DyAlO3 crystal field is one of the reasons for the change in the magneto-optical activity of Dy3+ ions in the orthoaluminate structure.
Manual técnico para la producción de semilla de guandul (Cajanus cajan (L.) Huth) en Colombia
Authors: Arenas-Rubio Isueh , Del Toro Aparicio Jorge Mario , Moreno Pérez Sheilla , Hernández Nopsa John Fredy , Gutiérrez-Berdugo Iván Antonio , Berrocal Atilano José Hilario , Guzmán Sánchez Luisa Fernanda , Medina Mérida Magda Jenny , Aguilar Aguilar Paula Andrea , Soto Macea Robinson José , Montero Cantillo Yesith Darith , Ramírez Durán Julio
Published: May 2022

En este manual se recopila información técnica del guandul como un aporte para su resurgimiento entre los campos de cultivo tradicional, la huerta casera y bosques silvestres, con la intención de posicionarse como especie multipropósito. Está dirigido a investigadores, empresas productoras de semillas, profesionales del agro, asociaciones, fundaciones, productores, asistentes técnicos, semilleristas, viveristas, estudiantes y demás actores dedicados a la producción de semilla de guandul para el establecimiento de nuevos cultivos en áreas disponibles.
Evaluation of the effects of the community-based intervention “10.000 Steps Duesseldorf” for the promotion of physical activity in two cities in North Rhine-Westphalia: Study protocol (Preprint)
Authors: Matos Fialho Paula M , Günther Liane , Schmitz Elena , Trümmler Jannis , Willemsen Sorina , Vomhof Markus , Icks Andrea , Lang Alexander , Kuss Oliver , Weyers Simone , Pischke Claudia R
Published: May 2022

BACKGROUND

The World Health Organisation (WHO) recommends 150 minutes of moderate to vigorous physical activity (PA) which translates to approximately 7.000-10.000 steps/day for adults. In Germany, less than half of the population in this age range reaches this recommendation highlighting the need for population-based intervention approaches to promote daily PA.

OBJECTIVE

The complex community-based PA intervention „10,000 Steps Ghent“, originally developed in Belgium and shown to be effective for PA promotion, is adapted for implementation and evaluation in two German cities. The original Belgian study is currently replicated and effectiveness of the adapted intervention will be examined in adults living in intervention city districts in Duesseldorf compared to those living in control city districts in Wuppertal over the course of one year.

METHODS

A controlled intervention trial examining the effects of an intervention addressing multiple levels (e.g., individual level: website; organizational level: PA promotion in companies; community level: media campaign, environmental changes) is conducted. PA and various secondary outcomes are assessed in two random samples of adults aged 25 to 75 years (n=399 in each city) at baseline and after one year.

RESULTS

Funding for the study was obtained in March 2020. Recruitment for the study and baseline data collection were conducted from May 2021 to March 2022 (as of March 2022, 626 participants were enrolled in the study). The intervention will be implemented in Duesseldorf for one year from April 2022 onwards and follow-up assessments will be conducted starting in May 2023 (until September 2023). Data analysis will be performed in Fall 2023 and results published in Spring 2024.

CONCLUSIONS

To our knowledge, this is the first research project currently underway in Germany aimed at replicating the effects of a complex intervention for PA promotion previously shown to be effective in another European country.

CLINICALTRIAL

German Clinical Trials Register DRKS00024873
(Date of registration: April 21st, 2021; URL: https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00024873).
RECENT UPDATE ON LIPOSOME-BASED DRUG DELIVERY SYSTEM
Authors: CHARUMATHY A. , UBAIDULLA U. , SINHA PRIYANKA , RATHNAM GRACE
Published: May 2022

In this review article, liposome a novel drug delivery has been discussed, which is one among the various drug delivery system used to target the drug to a particular tissue. As the structural similarity between lipid bilayer and cell membrane, the liposome can easily penetrate and produce an effective delivery of the drug to such that a free drug would not able to penetrate. Some other drug delivery systems include niosomes, microparticles, resealed erythrocytes, pharmacosomes, etc. The term liposome meaning lipid body. Liposomes can also be able to encapsulate in both hydrophilic and hydrophobic materials and are utilized as drug carriers in drug delivery. This technology is very useful for the treatment of certain diseases. In this review, the preparation, evaluation and the applications of the liposomal drug delivery system for targeting various diseases are elaborately presented.
Feasibility of Pulsed Thermography for Moisture Estimation
Authors: Fragoso-Mandujano José Armando , Perez-Patricio Madaín , Camas-Anzueto Jorge Luis , Guerra-Crespo Héctor , Simá-Moo Efraín , Velázquez-Trujillo Sabino , Hernández-Castillo Jehiely Belem
Published: May 2022

The dehydration of farm products provides farmers an opportunity to preserve their products longer and simultaneously earn more profit from them. Nevertheless, traditionally the quality of the dehydrated products has been determined by the use of invasive methods, for example, through manual measurements with a Vernier caliper and a micrometer, has its greatest weakness in the monitoring of continuous production lines and, that is why an efficient methodology is often required for estimating the moisture in dehydrated products. The goal of this study was to explore the feasibility of pulsed thermography for estimating the moisture content of farm products in the drying process. In this paper, a methodology to estimate dehydration in real-time was developed and the design and construction of a real-time pulsed thermographic imaging system were described. Moreover, to demonstrate the principle of the operation, Neem (Azadirachta indica) leaves were used in a dehydration process. The specimen was submitted to a heat pulse, and its reaction through time was observed by an infrared camera, then, the sequence of captured images generates a characteristic curve. That curve relates the moisture content with the response to the heat pulse. The results demonstrated the efficiency of the pulsed thermography in differentiating the percentage of dehydration in Neem leaves.
Surface Modification of TiO₂-Al₂O₃ Nanoparticles for the Enhancement of the Rheological Properties of Base Lubricating Oil
Authors: Fahad Mustafa Raad , Abdulmajeed Basma Abbas
Published: May 2022

Lubricating oils are used in moving parts to minimize friction. The use of Nanofluids can enhance the properties of lubricants. The aim of this work is an enhancement of the rheology properties of base oil. The surface modification was conducted for inorganic nanoparticles (NPs) TiO₂-Al₂O₃ with oleic acid (OA) in this research. The OA renders the TiO₂-Al₂O₃ surface hydro-phobic. The OA-treated NPs show very stable dispersion in lubricating oil even after more than one month, compared with the unmodified NPs. The surface modification of NPs was characterized by Fourier transform infrared spectroscopy (FTIR). In this research, treated TiO2-Al₂O₃ are added to raw Iraqi lubricating oil 40 stock as a hybrid Nanofluid to study the rheology properties such as kinematic viscosity, viscosity index, and the stability of nano-fluid. Four different concentrations were prepared with a range of 0.2% to 1% by weight. Pour points and flashpoint was also identified. The TiO₂-Al₂O₃ nano lubricant shows a significant improvement in the viscosity index by 5.3–9.1 %, while the flashpoint increased by 5.8 – 14.36 % comparing with base oil.
Sensibilización científica en Tabasco, el caso de Ciencia en Movimiento del Consejo de Ciencia y Tecnología del Estado de Tabasco, México
Authors: Velázquez Aquino Miriam Areli , Sarracino Sagundo Karen Rocío
Published: May 2022

Se describirá parte del proyecto de exposiciones itinerantes “Ciencia en Movimiento”, el contexto en el que se desarrolla, una breve historia y descripción del mismo, su forma de operación así como dos dimensiones de impacto no previstas en el diseño del modelo, centrándonos en el efecto causado sobre los Guías facilitadores, que al adoptar un modelo de operación de mayor estabilidad temporal, generalmente un año al menos dentro del proyecto, ha permitido fortalecer vocaciones y trayectorias profesionales insospechadas inicialmente.
Presentación de modelos femeninos en ciencia y tecnología a niñas y jóvenes para el fomento de vocaciones científicas: una estrategia de comunicación de la ciencia en el INECOL, México.
Authors: Farias-Escalera Andrea , Escalón Portilla Edith
Published: May 2022

A fin de motivar vocaciones científicas entre niñas y jóvenes, y combatir las representaciones distorsionadas por los prejuicios y estereotipos de género dominantes, se diseñó una estrategia de comunicación de la ciencia para la visibilización de modelos femeninos en ‘STEM’. Presentamos los resultados obtenidos donde, mediante un diagnóstico de consumos mediáticos de consulta y preferencia de un grupo muestra, y una prueba piloto con adolescentes, se lograron datos cualitativos que facultaron la generación de contenidos para redes sociales integrando la ciencia, el diseño y el relato, pero sobre todo las preferencias de la audiencia.
Creating a three-dimensional territory map using the graphics editor of the Prism3D game engine
Authors: Latkin V.A.
Published: May 2022

The author considers the need for evaluation of territories in order to ensure the ecological balance and stability of the environment. It is possible only when all the features of the terrain are known in detail. One of the ways that contribute to high-quality and detailed analysis is three-dimensional mapping of the land using materials of various survey types, which enables carrying out the necessary actions on analytics, preliminary planning and design under office conditions. The object of the study is a rural area, the choice of which is due to the possibility of providing the general favorable environment in the region, as well as lack of attention to such territories and their “desolation”. The features of various types of software are analyzed; the way of their integration is described. A template for a database of objects of a three-dimensional map was developed. For mapping, the software designed for creating computer games is used, with its qualitative advantages of visualization and a considerable library of objects. The interface, tools, various features and capabilities of the used graphic editor are presented. An original mapping technique was developed; the stages of creating a 3D map are described and illustrated in detail. Further prospects of the work are outlined; its novelty and practical significance are noted.
Determination of glacier surface displacements through multi-temporal UAV data
Authors: Skrypitsyna T.N.
Published: May 2022

The shelf and outlet glaciers fluctuation characteristics are classically performed by comparing multi-temporal mapping sources, geophysical and remote sensing methods. The unmanned aerial vehicles (UAVs) usage equipped with GNSS receivers and digital photographic cameras enables obtaining georeferenced information and images. This data can be successfully employed for characterizing the movement of the glacier. The author proposes a modified pseudo-parallax method, which uses the multi-temporal survey materials obtained from the UAVs to determine the spatial displacements of the glacier surface. Its efficiency is demonstrated on the movement pattern determination example of the Dålk Glacier (North Antarctica) in the period from January, 20 to February, 9, 2017. Through that we can determine the total displacement vector on a point by three coordinates, they are measured by pseudo-stereopair obtained from different-time orthophotomaps and DEM. Modern automated techniques for identifying the corresponding points on a pair of images allow obtaining a sufficiently dense measurement network with predictable accuracy and precision. The investigation made it possible to determine the glacier displacement in 10 days and the distribution nature of these offsets without ground-based geodetic measurements. The average drift was 6,28 m, with a scatter from 0,07 m to 10,8 m. A method for estimating the shifts without ground control measurements was proposed and the main sources of systematic and random errors in coordinates and points heights determination were described.
Methodology of creating tactile maps based on integrating geoinformation and additive technologies
Authors: Andryukhina Y.N. , Poshivaylo Ya.G. , Ananev V. A.
Published: May 2022

The authors consider the current state of the tactile cartographic products manufacturing making the conclusion on the necessity of improving the existing techniques, as well as formalizing and automating the process of designing and further printing such maps. The authors propose a new methodological approach to creating them based on the integration of geoinformation and additive technologies. A technical solution is presented, within the framework of which a way of converting digital maps into three-dimensional models of tactile maps was developed. It has 4 stages, each one, in turn, consists of sequential operations that enable any user of the geographic information system to obtain the tactile map printed on plastic. The algorithm for conversion of digital cartographic data is implemented based on the geographic information system ArcGIS Pro, however, it is universal and can be applied to any geoinformation system that allows developing and installing the additional software modules for working with the mentioned data. Thus, the authors implemented a formalized approach to transforming digital maps into three-dimensional models of tactile ones.
Bagaimana Subjective Norms dan Entrepreneurship Education Berpengaruh Terhadap Entrepreneurial Intention Mahasiswa?
Authors: Handiman Unang Toto , Herdiyanto Herdiyanto , Affini Dinar Nur , Faridi Ahmad , Sutawijaya Ahmad Hidayat
Published: May 2022

The higher the number of entrepreneurs in a country, the higher the economic growth and development rate. What can be done to increase the number of entrepreneurs? Can entrepreneurship be created? This study aimed to measure the effect of Subjective Norms and Entrepreneurship Education on the Entrepreneurial Intention of students. The samples of this study were students of the Faculty of Economics and Business, Mercu Buana University, Meruya Jakarta campus, and Kranggan Bekasi. This research category is the quantitative method. Researcher collected data by distributing questionnaires using the snowball technique via a google form—measurement of data using statistical model SPSS and Structural Equation Modeling-Partial Least Square (SEM-PLS). The results showed that: (1) SN has a direct effect on ATB and PBC. (2) SN has an indirect influence on EI through ATB and PBC. (3) EE can moderate the impact of ATB, SN, PBC on EI. (4) SN, ATB. PBC and EE have a direct influence on EI. The novelty of this study is that the combination of SN and EE can generate student EI, whereas some previous research findings indicate that SN does not significantly affect EI.Keywords: Entrepreneurship Education, Attitude Toward Behavior,
Agilitas Organisasi: Meningkatkan Kepuasan Kerja Dan Komitmen Organisasi Tenaga Keperawatan Di Ruang Rawat Inap Pasien Covid-19
Authors: Gultom Mikaria
Published: May 2022

The Covid-19 pandemic has affected all aspects of people's lives and the world in a short time. The medical work environment dealing directly with patients is very stressful, especially for nurses who have to be in the inpatient room for 24 hours continuously. The purpose of this study was the extent to which hospital organizational agility could increase job satisfaction and organizational commitment of nurses working in inpatient room COVID-19 patients. This research method is a quantitative research method with data processing tools using the SmartPLS version 3.0. The research data was obtained from an online questionnaire using google form with a non-probability sampling technique, namely a convenience sampling technique (accidental sampling). The respondents of this study were 110 nurses who served in the Covid-19 inpatient service section at the Sentra Medika Group Hospital domiciled in West Java province which was appointed as a Covid-19 referral hospital by the Governor of West Java. The results showed that the direct effect coefficient of organizational agility on organizational commitment was 0.207, job satisfaction on organizational commitment was 0.484, and the indirect effect coefficient of organizational agility on organizational commitment through job satisfaction was 0.234. Thus, it can be concluded that organizational agility has a positive and significant effect on organizational commitment mediated by job satisfaction.
Mitigasi Risiko dan Kinerja Keuangan Perusahaan Asuransi: Pendekatan DEA Periode 2017 - 2019
Authors: Aldo Hadi , Appolo Appolo , Endri Endri , Marsoem Bambang Santoso
Published: May 2022

Tujuan penelitian ini adalah untuk mengetahui kinerja keuangan perusahaan asuransi yang terdaftar di Bursa Efek Indonesia perode 2017-2019 yang diukur dengan metode DEA. Sampel dipilih menggunakan metode sampling sistematis. Data dianalisis menggunakan metode DEA di mana di dalamnya terdapat beberapa rasio keuangan yaitu  Current Ratio, Non Performing Loan, Return On Asset dan Loan-Deposit Ratio. Hasil penelitian menunjukkan bahwa pada tahun 2017 dan 2019 pengelolaan keuangan terbaik dicapai oleh Asuransi Bintang, Tbk diantara perusahan pesaing lainnya. Sedangkan di tahun 2018 kinerja keuangan terbaik diperoleh Asuransi Jasa Tania, Tbk. Perusahaan tersebut sukses dalam memperoleh kinerja keuangan terbaik karena menerapkan Mitigasi Risiko yang baik karena telah menerapkan manajemen risiko di perusahaan yang berpedoman kepada Peraturan Pemerintah, penerapan manajemen risiko dilakukan melalui kerangka kerja yang mengikuti tahapan proses identifikasi, pengukuran, pemantauan dan evaluasi pada setiap proses bisnis pada setiap unit kerja.
Myeloid Sarcoma presentetion as brain tumor in pediatric acute myeloid lekeumia
Authors: Solgun Huseyin , Tekgunduz Sibel , Terzi Ozlem , Bayram Cengiz
Published: May 2022

Granulocytic sarcoma (GS) is a rare extramedullary tumor of immature
myeloid cells and is frequently associated with acute or chronic
leukemias [1]. In our case the tumor localization was
pariatotemporal as it is not usuall presentation. ; we presented this
case report to refresh the data of granuloctic sarcoma
The predator problem and PCR primers in molecular dietary analysis: swamped or silenced; depth or breadth?
Authors: Cuff Jordan , Kitson James , Hemprich-Bennett David , Tercel Maximillian , Browett Samuel , Evans Darren
Published: May 2022

Dietary metabarcoding has vastly improved our ability to analyse the
diets of animals, but it is hampered by a plethora of technical
limitations including potentially reduced data output due to the
disproportionate amplification of the DNA of the focal predator, here
termed ‘the predator problem’. We review the various methods commonly
used to overcome this problem, from deeper sequencing to exclusion of
predator DNA during PCR, and how they may interfere with increasingly
common multi-predator-taxon studies. We suggest that multi-primer
approaches with an emphasis on achieving both depth and breadth of prey
detections may overcome the issue to some extent, although multi-taxon
studies require further consideration, as highlighted by an empirical
example. We also review several alternative methods for reducing the
prevalence of predator DNA that are conceptually promising but require
additional empirical examination. The predator problem is a key
constraint on molecular dietary analyses but, through this synthesis, we
hope to guide researchers in overcoming this in an effective and
pragmatic way.
Medición de las habilidades algebraicas, trigonométricas y geométricas de los estudiantes en el curso de cálculo diferencial en ingeniería
Authors:   Universidad Autónoma de Baja California, de las Fuentes-Lara Maximiliano , Aguilar-Salinas Wendolyn Elizabeth ,   Universidad Autónoma de Baja California, Justo-López Araceli Celina ,   Universidad Autónoma de Baja California, Iñiguez-Monroy César Gonzalo ,   Universidad Autónoma de Baja California
Published: May 2022

Se presentan los resultados de una inves­tigación que incluyó la construcción y vali­dación de un instrumento de medición para determinar las habilidades algebraicas, trigo­nométricas y geométricas que los estudiantes universitarios tienen al ingresar a una carrera de ingeniería y que son fundamentales para desempeñarse adecuadamente en los cursos de cálculo. En el diseño del instrumento parti­ciparon los profesores de la academia de mate­máticas, todos con al menos grado de maestría y experiencia docente en el área de cálculo. El instrumento de medición quedó integrado por 40 reactivos y su análisis de calidad se describe y se deriva de las respuestas emitidas durante el ciclo lectivo 2020-2022 por 875 estudiantes de nuevo ingreso a la carrera de ingeniería. Los resultados muestran que los reactivos con dificultad media y con alta discriminación, son los que cuentan con mayor coeficiente de predicción y corresponden mayormente al área de geometría, específicamente en los temas de la línea recta, la circunferencia y el cálculo de superficies y volúmenes de figuras geométricas. Esta investigación aporta a los docentes elementos importantes para conside­rar ajustar o modificar sus diseños instruccio­nales y mejorar la calidad del aprendizaje de sus estudiantes universitarios en el campo del cálculo, así como también la consideración de los profesores del nivel medio respecto de las mayores dificultades que presentan los estu­diantes que pretenden ingresar a los progra­mas de ingeniería.
A Comparative Analysis of Policy Perspective for Technical and Vocational Education at Secondary School Level
Authors: HUMA AFSHAN , Rizwan Sidra , Rafique Rizwana
Published: May 2022

We believe that skills based education could provide a wayforward to sustainable development for the country. It is a hopeful scenario that more than 60% of the population of Pakistan is less than 30 years of age and almost half of them is under 15 years of age. It is important for the policy makers and planners to learn from the societies where human resource development is integrated in educational planning at secondary and higher secondary schools level. The paper at hand presents the policy analysis part of a bigger study which was conducted for proposing changes in the current policies and practices of technical and vocational education in Pakistan. To fulfill this purpose three of best models of technical and vocational education were reviewed and a comparative analysis was conducted to identify the adaptable policy measures in Pakistan. The three models reviewed and compared were of Germany, Switzerland and South Korea. This paper presents analysis of policies in the three aforementioned countries including the implementation strategy proposed; as well as lessons learned for improving the policy of technical and vocational education in Pakistan. This article is based on one part of a larger study.
Prevalence, Forms, and Predictors of Cyberbullying Perpetration
Authors: Trbojević Filip , Šikuten Lucija
Published: May 2022

With the spread of social interactions from the physical into the “electronic world”, a new form of bullying has emerged among children and young people – cyberbullying. Cyberbullying is bullying through the use of information and communication technologies. Given that the safety of children on the Internet is one of the main preoccupations of parents, educational experts and the media in the digital age, in this paper we investigate the prevalence rate, forms and predictors that encourage children to commit this type of bullying. The research was conducted by surveying 269 students (5th and 8th graders), from two elementary schools in Zagreb. The results show that in the last two months 24,5 % of students found themselves in the role of cyberbullies, that the most common forms of this behaviour are saying ugly things, mocking, and ignoring others on social media platforms, and that its most important predictors are traditional bullying perpetration, affirmative attitude towards violence, cyberbullying victimization, poorer school performance and authoritarian parenting. The authors conclude that the key to preventing cyberbullying lies in the cooperation of educational experts, students, parents and the media, as well as their adaptation to the changing cyber environment.
The modelling of soil-binder composites
Authors: Leszek Rafalski  , Michał Ćwiąkała  , Cezary Kraszewski  , Joanna Korzeniowska
Published: May 2022

The development of an appropriate soil-binder composite (stabilized soil) is associated with the selection of the appropriate strength class of the hydraulic binder (e.g. ash-cement) and its amount to stabilize the soil. Advanced statistical methods based on the use of the spline function were used in the analysis of tests of soil--binder composites. The analysis presents statistical modelling as a tool helpful in the design of soil-binder composites, showing possible interactions between the components of materials included in the mineral composition of composites. A logarithmic model of the compressive stress forecast was developed for soil-binder composites both with freezing cycles of the soil composition and without freezing cycles, in which the composites hardening time and the addition of ash-cement binders to the soil were continuous variables.
Effective methods to strengthen the bending reinforced concrete elements
Authors: Svyatoslav Gomon  , Volodymyr Romanyuk  , Yuriy Ziatіuk  , Vitaliy Marchuk  , Oleksandr Nalepa
Published: May 2022

The analysis of methods of strengthening reinforced concrete structures showed, that strengthen structures that work for bending can be both a way of increasing the cross-section, and a way to change the calculation scheme of the work of structure. To date, the effect of low-cycle loads of high levels on the work of strengthened bending reinforced concrete elements is not fully investigated. Research in this area is relevant and necessary for modern construction. The use of modern carbon-plastic materials and steel-fiber reinforced concrete is an effective way to strengthen bending reinforced concrete elements.
Thermodynamical study and Taguchi optimization of a two-stage vapor compression refrigeration system
Authors: Kaya Alaattin
Published: May 2022

This study?s primary purpose is to optimize the multistage refrigeration system with statistical methods. Taguchi optimization and ANOVA methods were applied to statistically determine the effects of components on system performance. The best operational conditions were defined for the maximum COP and exergy efficiency. Critical parameters have been determined to maximize the system?s performance. The evaporator temperature was defined as the most vital parameter (46.32%), and it is followed by condenser temperature (32.65%) for the maximum COP. The most important two parameters are determined as evaporator temperature with 29.14% and condenser temperature with 20.34% for maximum exergetic performance. As a result of 27 tests, the highest COP of the system was calculated as 2.67 and exergy efficiency as 55.22%. By using the optimum levels determined by Taguchi, it was ensured that the system?s COP was increased to 3.326 and its exergy efficiency to 71.23%. The ANOVA analyses indicate that the results? confidence level is relatively high, to be 99.9%. Another parameter examined in this study is the inter-stage level determination method and its effect on system performance. The method of determining the optimum inter-stage level may vary according to the objective function and system conditions.
Variational principle for a generalized Rabinowitsch lubrication
Authors: Ma Hongjin
Published: May 2022

This paper adopts Rotem and Shinnar?s modification of the Rabinowitsch fluid
model for the one-dimensional non-Newtonian lubrication problem, a
variational principle is established by the semi-inverse method, and a
generalized Reynolds-type equation is obtained. This article opens a new
avenue for the establishment of Reynolds-type equation of complex
lubrication problems.