bluuebunny/crossref_metadata_2025 huggingface dataset:
Real-Time Adaptive Modulation Schemes for Underwater Acoustic OFDM Communication
Authors: Barua Suchi , Rong Yue , Nordholm Sven , Chen Peng
Published: May 2022

Adaptive modulation received significant attention for underwater acoustic (UA) communication systems with the aim of increasing the system efficiency. It is challenging to attain a high data rate in UA communication, as UA channels vary fast, along with the environmental factors. For a time-varying UA channel, a self-adaptive system is an attractive option, which can choose the best method according to the channel condition to guarantee the continuous connectivity and high performance constantly. A real-time orthogonal frequency-division multiplexing (OFDM)-based adaptive UA communication system is presented in this paper, employing the National Instruments (NI) LabVIEW software and NI CompactDAQ device. In this paper, the received SNR is considered as a performance metric to select the transmission parameters, which are sent back to the transmitter for data transmission. In this research, a UA OFDM communication system is developed, employing adaptive modulation schemes for a nonstationary UA environment which allows to select subcarriers, modulation size, and allocate power adaptively to enhance the reliability of communication, guarantee continuous connectivity, and boost data rate. The recent UA communication experiments carried out in the Canning River, Western Australia, verify the performance of the proposed adaptive UA OFDM system, and the experimental results confirm the superiority of the proposed adaptive scheme.
A Novel Method for Detecting the Two-Degrees-of-Freedom Angular Displacement of a Spherical Pair, Based on a Capacitive Sensor
Authors: Yang Shengqi , Xu Yulei , Xu Yongsen , Ma Tianxiang , Wang Hao , Hou Jinghua , Liu Dachuan , Shen Honghai
Published: May 2022

The spherical pair has an important role in the inner frame of the stabilization mechanism of the aviation optoelectronic pod. However, its two-degrees-of-freedom (2-DOF) angular displacement signal is difficult to detect, seriously restricting its application in aviation optoelectronic pods. Therefore, this study proposes a new method to measure a spherical pair’s 2-DOF angular displacement using a spherical capacitive sensor. The capacitive sensor presented by this method realizes the measurement of the 2-DOF angular displacement of the spherical pair by integrating the spherical electrode groups in the ball head and the ball socket of the spherical pair. First, based on the geometric structure of the spherical pair, the structure of the capacitive sensor is designed, and the mathematical model for the capacitive sensor is deduced. Then, the sensor’s output capacitance, in different directions, is simulated by Ansoft Maxwell software. Finally, an experiment device is built for the measurement experiments. The simulation analysis and experimental results show that the spherical capacitive sensor has an approximately linear output in different directions, and the measured output capacitance is as high as 89.7% of the theoretical value. Compared with the existing sensors that measure the 2-DOF angular displacement signal of the ball pair, the sensor proposed in this study has an integrated structure, which can be integrated into the spherical pair. That makes it possible to apply the spherical pair to the inner frame of the aviation optoelectronic pod.
International Scientific and Practical Conference «Statistical Assessments of Sustainable Development»
Authors: Burova N. V. , Dekina M. P. , Neradovskaya Yu. V.
Published: May 2022

The article contains an overview of the reports submitted at the International Scientific and Practical Conference «Statistical Assessments of Sustainable Development», held on January 27–28, 2022 at the Saint Petersburg State University of Economics (UNECON). Of the 123 announced reports, more than 70 were heard in plenary and breakout sessions. They addressed a wide range of issues, both theoretical and applied.

Speakers noted that the list of indicators for achieving sustainable development goals is still in progress and requires improvement. It is necessary to ensure the adequacy of indicators for the tasks set, cohesion of methods of information gathering, international comparability of data, and their availability to a wide range of users. The speakers also touched upon monitoring issues associated with achieving sustainable development goals.

Conference participants discussed application of statistical and econometric methods for solving specific problems, formulated proposals for improving the methodology of analysis and establishing generalizing characteristics of sustainable development. Theoretical and practical issues of using statistical and econometric methods and models are considered in the context of forecasting target indicators of strategic planning, modelling and forecasting of individual socio-economic phenomena and processes, and the development of individual countries or regions.

A significant portion of reports focused on analyzing the achievement of specific sustainable development goals, studying various characteristics of the economy and society, identifying patterns that arise when progressing toward the target goals. The papers also discussed ESG business transformation, modelling of a circular economy, the impact of the COVID-19 pandemic on sustainable development, the functioning of health care and family sustainability.
Assessment of the Regional Labor Market, Taking into Account the Territorial Effect (Case Study: The Republic of Belarus)
Authors: Soshnikava L. A. , Kishkovich A. V.
Published: May 2022

The relevance of the study concerning evaluation problems and a specific comparative analysis of regional labor markets is explained by the growing importance of improving macroeconomic regulation in almost all CIS countries. The purpose of the work was to demonstrate the capabilities of spatial econometrics tools in the analysis of regional labor markets on the example of the Republic of Belarus. The authors consider methodological approaches to analyzing labor market indicators based on modern statistical and econometric tools.

The authors substantiated the necessity of using spatial econometrics methods for a more accurate assessment of the specific characteristics of the regions of the Republic of Belarus. A spatial autoregressive model was built using panel data. Here, integral block indicators were used as factors, covering only 40 primary characteristics of the region. This article briefly discusses the provisions used in spatial data analysis. It also presents the results of building a mixed model of spatial autoregression. For calculations, the authors used data for 2016–2019, which are freely available in the interactive business intelligence system for distribution of official statistical information of the National Statistical Committee of the Republic of Belarus (Belstat, 2021).

As predictors, the regression model included integral indicators of the regional labor market, weighted using a matrix of distances between the centers of regions. Here, were used forty initial indicators. According to the authors, the results of the study can have practical application when planning programs for the development of regional labor markets.
Are We Building Agile Graduate Capabilities to Meet Automotive Service Industry Trends?
Authors: Singh Niranjan , Tawaketini, Jone , Kudin Roman , Hamilton Gerry
Published: May 2022

The inexorable use of electronic technology and rising user expectations of motorised transport are quickly moving the service industry towards a rapidly changing environment. To maintain the ability to deal with new and emerging technologies, industry leaders will need to rethink how they will address their staffing strategies. In this research, we found that the New Zealand automotive service industry is markedly different from what it was twenty years ago as technology in vehicles have been increased due to environmental legislation and customer demands. The service industry is going through a technological revolution as new more environmentally friendly vehicles are introduced into the fleet. Further technological complications are added as vehicle safety is improved through automation of vehicles and soon to become common, fully autonomous vehicles. Service technician training programmes must be modified to ensure that the industry is capable of dealing with high technology vehicles when they come up for service or repair.
Thesis Review: Creating Appreciation and Community Support for Mothers Caring for a Child with Anxiety Disorder by Kristi Shaw
Authors: McNabb David , Kenke David
Published: May 2022

Kristi Shaw has completed an exceptional piece of research, providing critical analysis and originality in her dissertation Creating appreciation and community support for mothers caring for a child with anxiety disorder. She has completed a substantial dissertation that would achieve the goal of a thesis at a higher credit level. Shaw’s inside knowledge of caring for a child with anxiety disorder has been applied to this project. The research involves an ambitious application of appreciative inquiry to the task of supporting a group of mothers to take action on the needs of their children with high anxiety. She has made a strong case for addressing the problem of people globally experiencing increasing levels of anxiety and targeting the unique challenges for parents who have children living with the ‘invisible’ impairment of anxiety.
Rohingya Refugees in Bangladesh: Exploitations and Challenges for Host Community
Authors: Alam Md. Shah
Published: May 2022

Bangladesh has been facing a new crisis to provide shelter to the Rohingyas who were forcibly repatriated from Myanmar. Though Rohingyas taking shelter in Bangladesh started in 1978, the last massive influx of the Rohingyas occurred on 25 August 2017, when more than 7,00,000 Rohingya refugees fled to Bangladesh due to massive crime against humanity in Myanmar. More than a million Rohingya refugees live in Rohingya camps in Cox's Bazar, wherein, in most cases, the Rohingyas are exploited in many ways for many reasons, and the personal security of the Rohingya in the camps are under threat in many ways. Therefore, this paper explores two issues. First, the paper argues that the overall fundamental human rights of the Rohingya in the camps are undermined; and second, in other ways, Rohingya also creates challenges for Bangladesh as the host country.
COLAPSO TRAQUEAL EM CÃES: O USO DA RADIOGRAFIA COMPRESSIVA COMO MÉTODO DIAGNÓSTICO
Authors: Babolim Pereira Natália , Sanches Sampaio Jéssica Maria , Del Rio Pinoti Luciana
Published: May 2022

O colapso traqueal é uma doença degenerativa e progressiva caracterizada por alterações anatômicas e histológicas na traqueia, sendo considerada uma causa comum de obstrução das vias aéreas superiores em pequenos animais. O diagnóstico é efetuado com base no histórico do animal, mas só é definitivo por meio da realização de exames complementares, em que a radiografia é o mais utilizado. Objetivou-se com este estudo determinar a ocorrência do colapso traqueal em cães por meio do exame radiográfico com compressão traqueal cervical externa, avaliando o grau de severidade em animais sintomáticos e assintomáticos, bem como determinar as raças, portes e idades mais acometidas. Para isso, realizou-se um estudo retrospectivo no qual foram analisadas as fichas clínicas e exames de 332 cães que realizaram o método radiográfico de compressão traqueal no hospital veterinário da instituição de ensino, no período de 1º de janeiro de 2010 à 31 de dezembro de 2020. Coletou-se dados referentes a idade, raça, porte, sexo e presença de sintomatologia clínica característica, além de verificar a redução do lúmen traqueal e o grau de colapso correspondente. Estes dados foram tabulados e analisados estatisticamente por meio do teste de Tukey, teste Qui-quadrado de independência e estatística descritiva. Por meio da interpretação dos resultados, verificou-se uma maior casuística de animais sintomáticos, estes relacionados à graus mais severos de colapso traqueal. Cães de pequeno porte foram os mais acometidos, em especial as raças Poodle, Yorkshire terrier e Pinscher. Além disso, notou-se uma maior incidência desta afecção em cães adultos à idosos. Pela análise dos resultados obtidos com a realização da radiografia compressiva, observou-se tratar de um método diagnóstico simples, seguro e com alta acurácia para o diagnóstico de colapso traqueal. Ademais, os achados quanto as predisposições e tendências clínicas dos pacientes culminam com o auxílio do pensamento clínico para o correto e precoce diagnóstico do colapso traqueal.
RESPONSE OF TOMATO TO PARTIAL ROOTZONE DRYING AND DEFICIT IRRIGATION
Authors: Zegbe Jorge A. , Hossein-Behboudian M. , Clothier Brent E.
Published: May 2022

Water is a limiting factor for plant production worldwide, and therefore it is necessary to adopt water saving irrigation practices. Partial rootzone drying (PRD) is a new water saving irrigation techique, which was compared with deficit irrigation (DI). The effects of PRD and DI on leaf water potential, plant growth, biomass allocation, yield, and fruit quality of ‘Petopride’ processing tomato (Lycopersicon esculentum Mill.) were studied. The treatments were: daily full irrigation (FI) on both sides of the root system (RS) considered as control; irrigation on one side of the RS with half the volume of water given to controls where the irrigation was shifted over from the wetted part to the drying part of the RS every day (PRD); and full irrigation every other day on both sides of the RS, considered as DI. Leaf water potential, total plant fresh weight and total dry weight of fruit were lower in DI than in FI and PRD. In PRD irrigation water use efficiency was improved by 83 % relative to FI. For DI dry mass partitioned into stems and leaves was higher, but dry mass partitioned into fruits was lower in PRD and DI than in FI. Fruit water content and fruit background skin colour were the same among treatments, but total soluble solids concentration was higher in PRD and DI fruits. Leaf calcium concentration was lower and the incidence of blossom-end rot was higher in DI and PRD than in FI. The PRD is more advantageous than DI and may be recommended for areas where water is scarce.
Adoption Of Cloud Computing By IT Based Small And Medium Scale Enterprises In Northwestern Nigeria
Authors: Buhari Bello A. , Muhammad Bilyaminu S. , Bodinga Bello A. , Sifawa Muazu D.
Published: May 2022

This research has taken a Quantitative, interpretive and cross-sectional designs in the form of a self-administered questionnaire through survey. The aim is to investigate the adoption of Cloud Computing by IT based small and medium scales enterprises in Northwestern Nigeria. About one hundred and fifty (150) questionnaires were distributed among seven states in the North-Western Nigeria and average of one hundred and nine (109) was responded. The result of the survey shown that most of the IT professional in these SMEs are cloud provider’s end users, continue to use cloud provider in the future, is part of their strategic effort, recommended Cloud provider to others and they are very satisfied with the cloud providers. Challenges that are preventing them from getting the maximum value out of cloud providers are lack of encouragement, poor training, application is missing and lack of executive sponsorship.
Génesis y desarrollo de los estudios turísticos
Authors:   , Comparato Gabriel Joaquín
Published: May 2022

La tesis propone comprender el proceso de génesis y desarrollo del campo de los estudios turísticos tomando como referencia el caso argentino dentro del contexto latinoamericano. En este sentido, condensa una serie de decisiones teórico-metodológicas en tres niveles analíticos. El primero está referido a la reconstrucción genealógica en articulación con los principales aportantes disciplinares: geografía, economía y antropología del turismo. En segundo lugar, se analiza la creciente autonomía del campo dentro del contexto latinoamericano. De tal modo, se incorpora la dimensión del poder y se articulan distintas problemáticas históricas a partir del diseño de matrices analíticas. Finalmente, en el tercero se recupera el proceso de institucionalización y profesionalización del turismo en Argentina, así como las características que asume en el sistema científico contemporáneo. En este sentido, con un abordaje pluralista desde el punto de vista metodológico así como interconectado en virtud de las coordenadas temporales y espaciales desplegadas, se reflexiona sobre el carácter rizomático y desigual que adquiere el campo. De este modo, la tesis se presenta como una contribución teórica-práctica en un marco de escasez de reflexividad disciplinar, no solo por problematizar los presupuestos de cientificidad sino, también, por reflexionar sobre una sociología de los productores y las producciones.
The Role of Collaborative Learning on Learning Engagement: An Empirical Facts from Nigeria
Authors: Saputra Nopriadi , Onyemaechi Uchenna , Sutanto Harry
Published: May 2022

This study aims to examine the influence of various learning resources in personal, social, and institutional contexts on online learning experiences, especially in the Covid-19 pandemic era. This was an attempt to examine the impact of personal persistence, collaborative learning, and digital lecture skills on electronic satisfaction as well as on learning engagement. This study was based on cross-sectional survey which spread online questionnaire to the students of selected higher education in Nigeria. The sampling method was convenience - a non-probabilistic approach. This study successfully involved 106 students from three private universities in Nigeria (80%) - Caritas University, Gregory University, and Madonna University. The respondents were equally distributed into male (51%) and female (49%). Most of them has age below than 26-year-old (80%). They are mostly in first and second semester (92%) in regular program (79%) at 200 level (23%0, 300 level (25%) and graduated (23%).The research model was constructed by five variables, such as: Learning Engagement (LENG), e-Satisfaction (ESAT), Personal Perseverance (GRIT), Collaborative Learning (COLE), and Digital Lecturing Skill (DLEC). Those variables are described into second order constructs which each variable is reflected into its dimensions and each dimension was measured by its items or indicators. All variables were measured by instruments adapted from previous studies

Keywords: Learning Engagement, Collaborative Learning, E-Satisfaction
Identification of Critical Success Factors of E-Marketplace
Adoption by SMEs: A Systematic Review
Authors: Wibowo Satriyo , Dhewanto Wawan , Lantu Donald Crestofel , Dellyana Dina
Published: May 2022

The e-marketplace is a technological innovation that facilitates the interaction of several sellers
and buyers on a single electronic platform, resulting in more efficient transactions and a broader
market reach. Despite these benefits, SMEs adoption of this e-marketplace remains poor. The
objective of this study is to examine and characterize the critical success factors (CSFs) affecting
SMEs' adoption of e-marketplaces.A systematic review of the existing literature was conducted
to explore CSFs of e-marketplace from previous studies. The 21 publications were critically
reviewed in order to comprehend the theoretical framework used in previous research and the
CSFs associated with e-marketplace adoption. In general, the framework used is a combination
of the technology-organization-environment framework and the diffusion of innovation.This
study identifies eight CSFs, namely perceived relative advantages, compatibility, security,
product characteristics, top management support, competitive pressure, partner pressure, and
government support.This study advises researchers and practitioners on the CSFs that should be
considered while adopting an e-marketplace by SMEs.
Keywords: Electronic marketplace adoption; e-marketplace; literature review; critical success
factors; small and medium-sized enterprises.
Swelling and dissolution kinetics of poly(4-hydroxystyrene) in tetrabutylammonium hydroxide (TBAH) aqueous solutions studied by quartz crystal microbalance (QCM) method—in comparison with tetramethylammonium hydroxide (TMAH) aqueous solutions
Authors: Ito Yuko Tsutsui , Betsumiya Hitomi , Kozawa Takahiro , Sakamoto Kazuo , Muramatsu Makoto
Published: May 2022

The dissolution (including the formation of a transient swelling layer) of a resist polymer is key to realizing ultrafine patterning. However, the details of the dissolution of resist polymers remain unclarified. In this study, the swelling and dissolution kinetics of poly(4-hydroxystyrene) (PHS) films in tetramethylammonium hydroxide (TMAH) and tetrabutylammonium hydroxide (TBAH) aqueous solutions were investigated by a quartz crystal microbalance method. PHS is a typical backbone polymer (a dissolution agent) of chemically amplified resists. The swelling and dissolution kinetics of PHS were observed by changing the protection ratio of the hydroxyl groups of PHS and the alkaline concentration in developers. Not only the dissolution rate but also the mode of dissolution depended on the molecular structure of tetraalkylammonium cations. For polymer matrices with strong hydrogen bond networks such as PHS, the penetration of tetrabutylammonium cations is considered to be strongly suppressed by their long alkyl chains.
Scintillation properties of Yb-doped Bi4Ge3O12 single crystals emitting near-infrared luminescence
Authors: Okazaki Kai , Fukushima Hiroyuki , Nakauchi Daisuke , Kato Takumi , Kawaguchi Noriaki , Yanagida Takayuki
Published: May 2022

Yb-doped Bi4Ge3O12 (BGO) single crystals with different dopant concentrations were synthesized by the floating zone method, and the photoluminescence (PL) and scintillation properties in visible to near-infrared (NIR) wavelength ranges were evaluated. In PL and scintillation, a broad emission band was observed at 400–600 nm, which was ascribed to the electronic transitions of Bi3+. Furthermore, NIR emission bands due to Yb3+ were observed at 1000 nm. To evaluate scintillation detector properties, the relationship between emission intensity in the NIR range and X-ray exposure dose rate was investigated. Among the present samples, 0.5 and 1% Yb-doped BGO showed good linearity in the dynamic range from 0.006 to 60 Gy h−1.
Digital and analog resistive switching in NiO-based memristor by electrode engineering
Authors: S. P. Swathi , S. Angappane
Published: May 2022

An electroforming-free bipolar resistive switching (RS) is demonstrated in NiO-based memristors with different RS types, digital and analog. Au/NiO/Pt devices show the digital RS with low operating voltages (0.6/−0.7 V), large ON/OFF ratio (102), longer retention (103 s), and hence, are suitable for low power memory applications. On the other hand, Au/NiO/ITO devices exhibit analog RS with a lower operating current (∼μA), longer endurance (>102 cycles), and retention (103 s). Notably, one of the synaptic features, conductance modulation, is demonstrated in Au/NiO/ITO devices. The crystalline phases, microstructure, and defect density of sputtered NiO films depend on the nature of the bottom electrode, and thereby, the switching behavior can be tuned by electrode engineering. Unequivocally, the fabricated NiO-based memristors with multifunctional capability are found to be promising and pave the way for a new paradigm of fusion between information technology and bio-inspired computing.
Unveiling the analogies between the atomic switch and NMDA receptor-based signal transmission of biological synapse
Authors: Mahapatra Anwesha , Pradhan Itishree , Roy Dipanjan , Nayak Alpana
Published: May 2022

For the successful implication of brain-inspired computing using neuromorphic hardware, it is important to understand the detailed mechanisms of the biological brain. Here, we compare the atomic switch device with the N-methyl-D-aspartate receptor-based (NMDAR) signaling pathway which is the key to cognition in the human brain. An Ag/Ag2S/Pt gapless-type atomic switch configuration is realized using an atomic force microscope. The current responses to single and multiple voltage pulses of varied amplitude, width, and interval are studied to identify and control the conductance levels. This enables us to distinguish the sensory, short-term, and long-term memories along with the passive forgetting behavior and multilevel memory storage properties. Drawing a one-to-one comparison of these aspects of the atomic switch with the learning in the NMDAR pathway, we argue that the atomic switch has the potential not only as an edge-intelligent device but also as the missing link between biology and technology.
A facile reprecipitation method of Quantum-confined CsPbBr3 perovskite quantum dots for narrow-band deep-blue emission
Authors: Oshita Naoaki , Umemoto Kazuki , Sato Ryota , Kimura Taisei , Chiba Takayuki , Asakura Satoshi , Uji-i Hiroshi , Masuhara Akito
Published: May 2022

Quantum-confined cesium lead tribromide perovskite quantum dots (PeQDs) are attractive photonic sources for versatile optoelectronic devices and thus the synthetic routes have been explored via various techniques. However, the lack of a general method to fabricate the quantum-confined PeQD with remarkable stability at colloidal state has been one of the major obstacles to device applications. Herein, we propose a simple and robust ligand-assisted reprecipitation method associated with didodecyl dimethyl ammonium bromide for quantum-confined PeQDs with remarkable stability at colloidal state. This method will shed a light on the field of colloidal PeQDs synthesis for the next generation of photonic sources.
Microstructural analysis of N-polar InGaN directly grown on a ScAlMgO4(0001) substrate
Authors: Velazquez-Rizo Martin , Najmi Mohammed A. , Iida Daisuke , Kirilenko Pavel , Ohkawa Kazuhiro
Published: May 2022

We report the characterization of a N-polar InGaN layer deposited by metalorganic vapor-phase epitaxy on a ScAlMgO4(0001) (SAM) substrate without a low-temperature buffer layer. The InGaN layer was tensile-strained, and its stoichiometry corresponded to In0.13Ga0.87N. We also present the microstructural observation of the InGaN/SAM interface via integrated differential phase contrast-scanning transmission electron microscopy. The results show that the interface between N-polar InGaN and SAM occurs between the O atoms of the O–Sc SAM surface and the (Ga,In) atoms of InGaN.
Optical rectenna with wide wavelength coverage from a hollow resonator coupled with a metal–insulator–metal tunnel diode
Authors: Matsuura Daisuke , Shimizu Makoto , Liu Zhen , Yugami Hiroo
Published: May 2022

This study proposes an optical rectenna that combines a hollow resonator with a metal–insulator–metal (MIM) tunnel diode that is capable of photoelectric conversion (at various visible and infrared wavelengths). It enables the conversion of thermal radiation with different peak wavelengths, such as sunlight and thermal radiation (from heat sources in various temperature ranges), into electric power. The MIM tunnel diode was placed on the wall of a hollow resonator. It rectified the induced current generated by the resonance of the magnetic field. The photoelectric conversion capability of the proposed device applied to visible light is experimentally demonstrated in this study.
Assessment of the predictive potential of international Sovietology
Authors: Nazarenko M. B.
Published: May 2022

Aim. The work aimed to review and analyze the opinions of international Sovietologists regarding the ways of the Soviet economy development of the late socialist period, as well as to identify problems of the prognostic potential of international Sovietology.

Tasks. The work was performed to study scenarios for the development of the pre-perestroika Soviet economic model and problems in their prediction by international analysts.

Methods. The object of study was the international historiography of the USSR economic history in the pre-perestroika period. The sources of information were official statistics and the works of international analysts. The authors of this article used general scientific research methods, as well as methods of historical and economic analysis.

Results. An analysis of international studies shows that the hypothetical scenarios for the development of the Soviet Union put forward by Sovietologists before perestroika were based on prognosis of previous years, conflicting statistical data and scientific methods tested under the conditions of the capitalist economic model. Meanwhile, the Soviet planned socialist model represented a different type of economy, which had not previously been tried to be implemented on a national scale (the situation remains the same in the period considered). According to the position of international researchers, despite the low growth values of gross domestic product (GDP) per capita and the main leader of the economy, the industrial sector (taking into account the fall in oil revenues and stiffening of sanctions against the USSR in the early 1980s), the economy remained stable. Due to large margins of safety in the form of developed industry, agriculture, infrastructure, high scientific potential, and a huge stock of natural resources, the further existence of the USSR was not in doubt.

Conclusion. Many Sovietologists have written about the need for fundamental changes in the Soviet planned economic system. At the same time, they took into account the significant difficulties and risks associated with possible reforms, believing that the consequences of the radical introduction of the market into the planned economy could be significant disturbances. This is one of the reasons why, in the pre-perestroika period, few Western analysts admitted the possibility of large-scale reforms in the near future.
The Study of Gadget Addiction of Among University Students
Authors: Simbolon Mangadar , Simbolon Stephanie Bethania Pearly
Published: May 2022

Data in the country of Indonesia in 2017 shows the number of gadget users is 74.9 million people, while those exposed or using social media is 129.2 million.Research done in 2017 showed that 168 children to elderly were using gadgets(100%). The purpose of this study was to find out how dependent a person is on thegadget. Respondents of this study were the 270 university students. The methodused in this study was descriptive utilizing the accidental sampling technique. Theresults showed that: 100% of the respondents feel the gadget is vibrating even if itdoesn’t. 99.6% of respondents check gadget every now and then, respondents bringthe gadget to the bathroom (99.6%), and panic when gadget is not found (99.6%).Further results revealed that 99.3 % of the respondents are more preoccupied withtheir gadget and 99.6% of them examined their gadgets regularly. This studyconcluded that students are very dependent on their gadgets since these are theirsource of information.
Nursing Students’ Stigma on Mental Hospital Exposure: A Phenomenological Study
Authors: Balajadia Kathleen Jose G. , Carlos Christine C. , De la Cruz Dawnald Russel L. , Bingcang Angel Grace F.
Published: May 2022

Exposure to mentally ill clients is challenging because of the fear attached to it. Oftentimes, the mentally ill are viewed as dangerous, unpredictable, and bizarre, which brings fear to other individuals, including health professionals. Professional care providers suffer from common fears and apprehension upon contact with the patient. Professional stigma, which refers to the nursing students’ fears towards exposure to mentally ill patients, was explored in this study. The study utilized a phenomenological research design. Semi-structured interviews were conducted among ten nursing students from a university in Cavite and triangulation of the data using interviews with clinical instructors and blockmates was employed. Thematic analysis was done using Colaizzi’s approach.  Findings showed that mental illness was considered as a poor coping mechanism that results in mental dysfunction, disturbance of a normal pattern of thinking, and a point of struggle to adjust to the society for acceptance. Themes that emerged regarding fear before mental health exposure were fear of physical harm or violence, transference, and inadequacy in delivery of care. However, after exposure, the fears were observed to be minimal. Based on the findings of the study, it was recommended that schools of nursing which expose their students in the psychiatric ward must include briefing and debriefing of students. Clinical instructors should orient nursing students prior to exposure to the mental ward to desensitize them. In addition, emphasis on the importance of increasing awareness on how stigma affects society and the mentally ill must be given importance in order to provide efficient nursing care.
Development of a Pennywort (Centella asiatica) Ice Cream with Passion Fruit (Passiflora edulis)
Authors: Salas Michelle , Fonte Ethel Grace , Estrada Miriam , Laborde Gladys , Romero Cryslie , Balagtas Maribel
Published: May 2022

Ice cream is a popular frozen dessert usually made of milk, cream, sugar, and flavoring. The goal of this study was to determine methods to enhance ice cream nutritionally through the addition of pennywort (Centella asiatica) and passion fruit (Passiflora edulis) extract. Pennywort is a nutritious leaf but not commonly utilized as food. The development of the product through laboratory experiments. The standardized ingredients and procedures were determined after five trial formulations. The pennywort leaf was dehydrated using the Multi-Commodity Heat Pump Dryer and ground using a food processor. Coconut milk was first chilled then mixed with soya milk from fresh soybeans. Sugar, vanilla, salt, pennywort and passion fruit extract were mixed using a blender. The mixture was poured into a plastic cup and frozen for 24 hours. The pennywort ice cream with passion fruit containeds 177 kcal per serving (125 ml). Each serving contained 33g of carbohydrates, 5g of protein, 2.8 g of fat, 88mg of calcium, 85mg of phosphorus, 1.1 mg of niacin, 0.9 mg of iron, 0.04 mg of thiamine, and 0.03 mg of riboflavin. The cost of one serving was ₱17. The product was evaluated by 30 individuals from both genders and was rated by the majority as like extremely in terms of odor, color, appearance, texture. Its taste was rated as like very much. This study showed that utilizing pennywort and passion fruit to enhance the taste and nutrient content of ice cream is possible.
Marginal Sealing Property of Temporary Restorative Materials: A Comparative Study
Authors: Padua Ana Rose , Perez Roderick , Medina III Vicente
Published: May 2022

This study compared the marginal sealing property Provifil (Promedica, Germany), a new light-cured one-component temporary filling material with IRM (Dentsply-Caulk) and Cavit (3M ESPE). Standard box-shaped cavity preparations were completed in 40 caries-free anterior bovine teeth.  The teeth were randomly assigned to 4 groups (n = 10) and were filled with one of the three restorative materials.  In five teeth (Positive control), no restorative material was placed; while five teeth of the negative control group had no restorative material but were filled with sticky wax. After thermocycling in water baths with temperatures of 5±5°C and 55±5°C (dwell time, 30 seconds) for 200 cycles, the teeth were coated with nail varnish, leaving an area of 1 mm short of the cavity margin uncovered.  The samples were immersed in 2% Methylene blue dye solution for 10 days, sectioned and then digital pictures were taken.  Dye penetration along the walls was measured using the UTHSCA Image Tool software. The greatest depth of dye penetration was considered the score of the specimen.  Data was analyzed using One-way ANOVA (p < 0.05) and Tukey’s HSD Post Hoc Test.  Results showed that all the materials tested leaked at the tooth-restorative material interface. Provifil had the lowest mean leakage value (1.609 mm) while Cavit had the next lowest (2.028 mm).  IRM demonstrated significant leakage values (4.587 mm) signifying complete dye penetration on all the samples. There was no statistical significant difference between the marginal sealing property of Cavit and Provifil (p>0.05).  The marginal sealing property of Provifil was better than that of IRM.
The Relationship of Academic Dishonesty and Procedural Justice among University Students in Thailand
Authors: Phutikettrkit Chomphunut , Thomas Darrin
Published: May 2022

This study investigate the relationship between students‟ perception of procedural justice andacademic dishonesty among students at a Thai university. A cross-sectional survey designwas employed that utilized a correlational analysis. The sample size derived from theuniversity consisted of 133 respondents. Results indicated that there were no difference in thestudents‟ perception between procedural justice and academic dishonesty when compared bygender, program, class, or faculty. A weak positive relationship was found between students‟perception of procedural justice and academic dishonesty (n = 133, r=.27). Implications forthis are discussed within the article.
Trustable Blockchain Interoperability: Securing Asset Transfers on Permissioned Blockchains
Authors: Pedreira Catarina , Belchior Rafael , Matos Miguel , Vasconcelos André
Published: May 2022

Blockchains currently exist in silos, competing when they could be cooperating. Interoperability is essential to allow for communication between them and motivate mass adoption. In permissioned blockchains, interoperability is harder given their opaqueness. The solutions proposed so far to address interoperability require a trusted private third party, which may be insecure and is not ideal. We propose T-ODAP, a secure multi-layered protocol that enables a trustless solution for permissioned blockchain interoperability, eliminating the need for trust in the protocol's participants. It provides a Decentralized View Storage, a connector that connects permissioned blockchains to the latter, and a trustless version of the ODAP protocol. T-ODAP models the participants as rational agents using game theory techniques and is implemented using \textit{Polkadot} and \textit{Hyperledger Cactus}. We tested the implemented solution, evaluated the system's robustness in face of attacks, and concluded that the system is \textit{(k,t)-weak-robust}.
Numerical Three-Sliding Manifold and Lyapunov Analysis of Rotor Angle with Brushless Machine Construction
Authors: Bansal Abhishek
Published: May 2022

This paper presents the comprehensive numerical analysis of three-sliding manifold control algorithm to estimate rotor angle/position, θe , sensorlessly in brushless DC synchronous machine. The Lyapunov stability and convergence in the discrete time is also analyzed for each of these algorithms for both continuous and discontinuous controls. The algorithm has also been examined for computation cost and complexity given by the upper bound, Big O. The control estimation algorithm is irrespective of the machine construction but this paper also elaborates 7.5 Hp (5.5 kW) brushless machine construction with winding table in a non-salient eight pole rotor, double layer wye-winding with 48 slots.
The virus of fashion. Democratization of luxury and new commercial strategies in early modern Valencia
Authors: Muñoz Navarro Daniel
Published: May 2022

This work intends to analyze how the influence of fashion in eighteenth-century Spain transformed the commercial structure, being the petty bourgeoisie the main protagonists and the shop ("botiga") the priority scenario of these changes. To do this, we will focus on eighteenth-century Valencia as a case study, a dynamic city that experienced a remarkable economic development during this century. Undoubtedly, fashion stimulated economic growth not only in the more developed regions of north-western Europe, but this process was also present in the Mediterranean context, developing an important sector of petty bourgeoisie mercantile and a change in the consumption patterns of most of its population.
The catalyst of change. The clothing of the Viennese servants and their relation to fashion in the period 1760-1823
Authors: Kafantogias Aris
Published: May 2022

In the eighteenth century, fashion constituted a fundamental criterion for consumption for broader parts of the European (and Viennese) population. This article investigates, through various sources, like probate inventories, fashion magazines and pattern books, the consumption of clothes and accessories of female servants in the period 1760-1823 and associates it with debates on their appearance at the time. It compares their wardrobes to those of a broad part of the Viennese female middle-class population, and examines the relation of their wardrobes to fashion, notably in the period of the emergence of Viennese fashion. Finally, it investigates whether female servants could function as intermediaries of the prevalent fashion between the elites and this middle stratum, and, consequently, as trendsetters for this group.
Unlikely followers of fashion? Dressing the poor in late medieval Bruges
Authors: Stabel Peter
Published: May 2022

Surprisingly little is known about the way the poor strata of urban society in the late medieval period used dress to express social identities. Systematic empirical data have not been available, and sources tend to illustrate the opinion of the elites about poverty. Through the analysis of cloth distribution by charitable institutions and, above all, of a unique set of inventories for fifteenth-century Bruges, it becomes clear that dress was not only an important element in the material culture and the construction of social identity of the poor, but that instead of being a passive player depending on charity and alternative commercial circuits, the poor used dress to conform to fashion cycles set by the wealthier groups in urban society. In late medieval Bruges, they were wearing the same typology of dress, the same colours and the same fabrics, displaying in this way a willingness to participate and invest in fashion cycles. In assessing both urban economies and social dialogue, scholars should therefore not focus on elite demand alone.
Fashion, emulation and social classes in late medieval Valencia. Exploring textile consumption through probate inventories
Authors: García Marsilla Juan Vicente , Almenar Fernández Luis
Published: May 2022

Abstract: This article explores the personal garments present in the probate inventories of 83 individuals that lived in the city of Valencia and its hinterland during the long fourteenth century. The paper explores the differences between both groups of individuals, the urban and the rural one, in aspects such as the typologies of the pieces of clothing, the colours, finishes, complements and fabrics employed in their design. It also tracks the spread of particular pieces of clothing across both groups of deceased before and after the Black Death, and discusses how far these changes were guided by emulative motivations.
Tavola rotonda
Authors: Ciriacono Salvatore
Published: May 2022

Although the LII Week adequately developed the theme of Fashion in its economic, productive and technological aspects, not forgetting the expectations of consumers and the role of raw materials available over the centuries considered, other aspects of this complex issue inevitably remained on the sidelines, which refers to questions of a sociological, linguistic, psychological and even psychoanalytic nature. It would have been equally appropriate to compare, in a more direct way, what was happening in northern Europe with respect to Mediterranean Europe, bearing in mind the role of Protestantism, very far from clothing that was too flashy. The role of colors and themes, also of an artistic nature, that transpired from clothing also refer to other aspects that will have to be taken up on other occasions.
Knowledge of Breastfeeding among Health Workers in the University of Port Harcourt Teaching Hospital
Authors: Green Kinikanwo Innocent , Woruka Atochi Prince , Oranu Emmanuel Okwudiri
Published: May 2022

All health workers who care for women and children during the postnatal period and beyond are key players in protecting, promoting, and supporting breastfeeding. However, most health workers do not have the necessary knowledge and skills to effectively play their roles. This study aims to assess the knowledge about breastfeeding among health workers. This was a cross-sectional study among 220 health workers at the University of Port Harcourt Teaching Hospital. A 32-point questionnaire based on the World Health Organisation (WHO) and the United Nations Children’s Fund (UNICEF) manual on the Baby-Friendly Hospital Initiative Training Course for Maternity Staff was used to assess the knowledge of the health workers. Scores of >50% were classified as good knowledge and <50% as poor knowledge. The overall good knowledge about breastfeeding was 51.8%. The majority (80.0%), had good knowledge about the benefits of breastfeeding and 169 (76.8%) of health workers had good knowledge about exclusive breastfeeding and the timing of breastfeeding. Good knowledge about the importance of colostrum was 27.7%, 91 (41.4%) health workers had good knowledge of birth practices that affect breastfeeding, and only 72 (32%) health workers had good knowledge about the problems of breastfeeding. In conclusion, the overall knowledge about breastfeeding among health workers in this study was not satisfactory. To breach this gap, hospitals should ensure that their staff has sufficient knowledge, competence and skill to support breastfeeding.
A Cross Sectional Study of Clinical and Histopathological Spectrum of Pediatric Brain Tumours
Authors: Gandhi Sapna , Meena Anita , Harsh Anita , Choudhary Sunil , Meena Sunil Kumar , Dhayal Sonu
Published: May 2022

Introduction: Brain tumors are the most common tumor of the childhood and the second most common malignancies after haematological malignancies. Childhood central nervous system (CNS) tumors differ significantly from adult brain tumors in reference to their sites of origin, clinical presentation, tendency to disseminate early, histological features and their biological behaviour. Aims and Objective: Analyse the Clinical and histopathological spectrum of brain tumors, in pediatric patients ≤18 year of age. Materials and Method: This was a cross sectional study conducted at the department of pathology, SMS medical college, Jaipur from January 2020 to October 2021. This is a laboratory based descriptive type of observational study and data of brain tumors in children equal or less than 18 year of age procured and their clinico-histopathological spectrum were analyszed. Result: In our study, Out of 116 patients 51.8 % were male and 48.2 % were female. Mean age for the male cases were 10.11 and for female cases were 9.78. we observed intracranial pediatric tumors 67 cases (57.7%) were located in infratentorial region and 49 cases (43.3%) were located in supratentorial region and incidence for intracranial tumor was 39(33.62%) cases of astrocytomas followed by 25 (21.55%)cases of medulloblastoma, 20 (17.24%)cases of ependymoma, 13 (11.20%) cases of craniopharyngioma, 5 (4.31%) cases of pituitary adenoma, 4 (3.44%) cases of meningioma, 3 (2.58%) cases of embryonal and choroid plexus tumor, 2 (1.72%) cases of ganglioglioma and 1 (0.86%) case of Schwannoma and PNET. In this article, Based on tumor location, the symptoms of CNS tumors on the supratentorial region were headache (22 cases, 44.8%), impaired vision (10 cases, 20.4%), seizures (6 cases, 12.2%), vomiting (4 cases, 8.1%). Symptoms of CNS tumors on the infratentorial region were headache (48 cases, 71.6%), vomiting (5 cases, 7.4%), impaired vision (4 cases, 5.9%), seizures (3 cases, 4.4%). Conclusion: Infratentorial cases, maximum number of cases were medulloblastomas and supratentorial cases, maximum number of cases were astrocytic tumours. Overall astrocytic tumours in all senses constituted the most common group of CNS tumours. Within astrocytoma, low grade astrocytoma (grade I & II) was most common CNS paediatric tumour.