bluuebunny/crossref_metadata_2025 huggingface dataset:
PSIKOEDUKASI ONLINE UNTUK MEREDAKAN STRES DI TENGAH PANDEMIK COVID-19
Authors: Pesau Heni Gerda , Panglewai Meidy M.L.
Published: May 2021

The COVID-19 pandemic has caused many changes in various aspects of people's lives. The changes caused psychological problems, one of which is stress. Stress conditions experienced by individuals need to be handled so as not to prolong or cause other psychological symptoms. One of the interventions that can be done in the midst of a pandemic is online psychoeducation. Based on this, the target of online psychoeducation carried out was the general public who were willing to become participants. The goal of online psychoeducation activities was to increase participants' knowledge of stress conditions and techniques that can be used to relieve stress. Psychoeducation was given in two methods, namely interactive lectures that discussed stress recognition and modeling techniques related to stress relief techniques. The results of the evaluation of the activities showed that more than 50% of participants gave positive responses to the material presented and the participants' expectations were achieved after participating in online psycho education. Thus it can be concluded that providing online psychoeducation could provide knowledge related to stress conditions experienced and techniques that can be applied to relieve stress experienced during the current COVID-19 pandemic.

 

Keywords: COVID-19, Stress, Psychoeducation, Online, Technique
Active Faults: Geomatics and Soft Computing Techniques for Analysis, Monitorig and Risk Prevention in Central Tyrrhenian Calabria (Italy)
Authors: Barrile Vincenzo , Fotia Antonino
Published: May 2021

Geodynamic phenomena monitoring is constantly evolving; however, earthquake prediction is still impossible. The acquired big data over time availability allows us to create specific models to simulate these phenomena. Generally, earthquakes happen in clusters, and major aftershocks are preceded by other small aftershocks. Applying mathematical models to the swarm measurement data provides the seismic event probability of a given magnitude in a given region. Predictive systems of seismological phenomena and soft computing techniques can therefore help to obtain good choices for the citizens’ safety when a given danger threshold is exceeded. In this regard, the possibility to have significant and reliable displacement data of network points repeated over time deriving from GPS monitoring networks set up across the monitored faults, as well as the use and implementation of dynamic GIS that also use “predictive” layers based on the use of neural networks and soft computing, can provide on one hand databases useful for the implementation of predictive models (soft computing techniques that use displacements as input data) and on the other hand valid information on propagation of the isoseismal (starting from information relating to the study area, the hypocenter of the considered earthquakes and the seismic intensity determined according to standard procedures). The objective of the following work is therefore to present and analyze the results of a prototypal predictive system developed by the Reggio Calabria Geomatics Laboratory. This prototype use a GIS systems and soft computing techniques. It allows on one hand to calculate the probability of seismic event's occurrence (event of known intensity that follow another also known) and on the other to identify and predict the isoseismal's propagation. The Gis system incorporate and implement rigorous methodologies for displacements computing on GPS networks repeated over time, while the soft computing uses the surface's displacements points monitored by a GPS network and the events that took place in their surroundings. The methodology was tested in the central Tyrrhenian area of Calabria (where there are a series of active faults). focusing in particular on the Falerna -Fuscaldo fault (Italy).
From UAV survey to 3D printing, geomatics techniques for the enhancement of small village Cultural Heritage
Authors: Fotia Antonino , Modafferi Antonino , Nunnari Antonino , D’amico Sebastiano
Published: May 2021

Italy is rich in cultural heritage villages and places of interest. This work illustrates the methodology utilized by the Geomatics Laboratory (DICEAM of the Mediterranean University of Reggio Calabria) to create a archaeological structures’ 3D model. 3D modeling is based on the utilization of imaging techniques, such as computer vision and digital photogrammetry. The outcomes obtained determine the value of the technique used in the field of cultural heritage to create a digital models and to replicate them through 3d printing. Furthermore, in the renewed interest in the context of the studies of ancient villages, the implementation of open GIS represents a new method to amplify the number of visitors to the villages despite concerns about returns on investments. In fact, the use of 3D acquisition and modeling tools to enhance the Cultural Heritage represents one of the study’s areas in quickly development in the near future.
Features of Public-private Partnership Financing as an Economic and Legal Tool for Sustainable Development
Authors: Petrunenko Iaroslav , Vasylieva Nataliia , Prylipko Sergii , Kryzyna Nataliia , Lavrynenko Svitlana , Zhuk Inna
Published: May 2021

The economic transition from a market to a social model requires a review of the role of the state and representatives of business structures in the economic system. Various forms of their interaction are becoming increasingly important, the main of which are public-private partnerships aimed at financing, formation, and implementing socially important projects. The purpose of the study is to analyze and evaluate the parameters of interaction between the state and the private sector in terms of improving the socio-economic partnership based on the provisions of the concept of public-private partnership (PPP). To achieve the goal were used such methods: analysis and synthesis; formalization and grouping; systematization and logical abstraction. The practice of the Public-Private Partnership Center of the Republic of the Philippines shows that the rational use of social partnership financial instruments will allow the state to reduce the budget burden, ensure infrastructure development, increase employment, develop private enterprises and improve the quality of goods and services. It is noted that the level of public-private partnership use in the world differs significantly, and therefore requires further intensification of efforts to stimulate its use, including due to the wide range of significant benefits of its use for the economy and the population in particular. Public-private partnerships are becoming increasingly popular as they provide many important benefits. In particular, the opportunity to obtain additional financial resources, including through additional investments, quality projects involving professional companies, open access to innovative technologies, and priority opportunities for the state to direct funds to specific areas. Thus, the direction of further research may be to determine the details of the functioning of projects in the framework of public-private partnerships. It is also important to conduct a pre-investment analysis, check the effectiveness of financing, prepare appropriate recommendations for each project stage.
NUMERICAL CALCULATION METHOD OF PIPELINE TRANSPORT OF LOW-COMPRESSIBLE FLUID
Authors: Khujaev I. , Bozorov O. , Mamadaliev Kh. , Aminov Kh.
Published: May 2021

Let $G=(V,E)$ be a finite graph. The Generalized Fan Graph $F_{m,n}$ is defined as the graph join $\overline{K_m}+P_n$, where $\overline{K_m}$ is the empty graph on $m$ vertices and $P_n$ is the path graph on $n$ vertices. Decomposition of Generalized Fan Graph denoted by $D(F_{m,n})$. A star with $3$ edges is called a claw $S_3$. In this paper, we discuss the decomposition of Generalized Fan Graph into claws, cycles and paths.
The impact of import substitution on economic accessibility of food in Russian Federation
Authors: Gontcharenko X. , Pecheritsa E.
Published: May 2021

The article considers the issue of the essence of import substitution as a priority direction in the field of increasing food security, and also assesses the level of economic affordability of food for the population in the Russian Federation. Possible ways to improve the system for assessing food security indicators are considered. Possible ways to improve the living standards of the population in the Russian Federation are proposed to ensure the economic availability of food.
ESTIMATING HORIZONTAL ACCURACY OF AIRBORNE LIDAR DATA USING ROUNDABOUTS
Authors: MUMFORD PETER , MIDDLETON JASON
Published: May 2021

The horizontal positional accuracy of LiDAR data is important for quality control monitoring, however it is often difficult to estimate. This difficulty is due in part to the problems observing ground truth features in the point cloud and determining the coordinates of surveyed marks on these features. Purpose designed targets can be deployed to provide ground truth, but this can be inconvenient. Methods have been proposed that use existing ground features, but the shapes and orientations of these markings tend to be site specific. In this paper the idea of using roundabouts as ground truth features is presented. Roundabouts are common in many urban environments and have useful properties for accuracy estimation. These properties can be used to find roundabout centres and then compared with survey mark coordinates to estimate the horizontal accuracy of the data; with an uncertainty of around 0.15m. The methods and algorithms used are presented, results of testing provided along with thoughts for further research.
Interaktive Visualisierung: Durchblick beim Produktdesign/Decisions can be made and communicated more effectively in the case of conflicting criteria – Interactive visualization: A clear view of product design
Authors: Cibulski Lena , Mitterhofer Hubert
Published: May 2021

In der Produktentwicklung und Produktionsplanung treten häufig Konflikte zwischen verschiedenen Zielgrößen auf. So lassen sich manche Zielgrößen nicht optimieren, ohne bei anderen Kompromisse eingehen zu müssen. Das Visualisierungs-Tool „Paved“ (Pareto Front Visualization for Engineering Design) hilft, Unterschiede zwischen Alternativen besser zu verstehen und so tragfähigere Entscheidungen zu treffen.

 

In product development and production planning, conflicts often arise between different objectives. Some targets cannot be optimized without compromising others. The visualization tool ‚Paved´ (Pareto Front Visualization for Engineering Design) helps to better understand differences between alternatives, thus allowing for more sustainable decisions.
A suitability assessment using an instrumented impact test of the use of selected structural steel grades on the basis of their changes in response to exposure to fire
Authors: Zajdel Paulina
Published: May 2021

In this article, changes occurring in structural steel after exposure to fire are described and discussed. The steel structure before and after fire determines its susceptibility to brittle cracking. The individual phases of cracking are described and interpreted on the basis of a load-displacement graph, directly obtained from the Charpy impact test. The relationship between the intensity of individual fracture energies and the type and appearance of the sample fractures are demonstrated. The program of planned Charpy impact tests and expected hazards after the exposure to fire of selected steel grades are presented. Standard simplified load-displacement graphs are assigned to the steel transition curve. The course of various cracking mechanisms occurring in the case of brittle fractures and plastic fractures are discussed. The aim of this article is to evaluate the possibility of the assessment of structural steel after a fire based on results obtained during the Charpy impact test.
APPLICATION OF THE EXTENDED FREQUENCY RESPONSE METHOD FOR PARAMETRIC SYNTHESIS OF A PROPORTIONAL-INTEGRAL DIFFERENCE CONTROLLER
Authors: Куликов Владимир Валерьевич , Куцый Николай Николаевич
Published: May 2021

Для повышения качества переходных процессов в автоматических системах с запаздыванием применяют ПИ-регулятор со звеном запаздывания, компенсирующим интегральный компонент стандартного ПИ-регулятора, который обозначается в технической литературе как пропорционально-интегральный разностный регулятор (ПИР-регулятор). Важной задачей, стоящей перед промышленной реализацией данного регулятора, является определение оптимальных настраиваемых параметров, доставляющих экстремальное значение принятому критерию оптимальности. Наличие запаздывания в регуляторе и объекте затрудняет применение аналитических подходов для параметрического синтеза закона регулирования, обеспечивающего переходные процессы с приемлемым качеством. Это приводит к использованию алгоритмических методов. В статье показано применение метода расширенных частотных характеристик (РЧХ) для параметрического синтеза ПИР-регулятора в одноконтурной автоматической системе регулирования (АСР) объектом с запаздыванием, критичным для применения типовых регуляторов. Метод РЧХ позволяет получить значения настраиваемых параметров ПИР-регулятора, которые в некоторых сложных случаях могут быть использованы как стартовые точки градиентной процедуры. Для оценки качества переходных процессов, полученных методом РЧХ, задействованы широко распространённые в практике автоматического регулирования коэффициент перерегулирования и интегральный квадратичный критерий.

To improve the quality of transients in automatic systems with lag, a PI controller is used with a delay link that compensates for the integral component of the standard PI controller, which is designated in the technical literature as a proportional-integral difference controller (PIR controller). An important task facing the industrial implementation of this controller is to determine the optimal configurable parameters that deliver an extreme value to the accepted optimality criterion. The presence of a delay in the controller and the object makes it difficult to apply analytical approaches for the parametric synthesis of the control law, which provides transients with acceptable quality. This leads to the use of algorithmic methods. The article shows the application of the extended frequency response (RFC) method for the parametric synthesis of a PIR controller in a single-circuit automatic control system (ASR) by an object with a delay critical for the use of standard regulators. The RFX method allows you to obtain the values of the configurable parameters of the PIR controller, which in some complex cases can be used as the starting points of the gradient procedure. To assess the quality of the transient processes obtained by the RFC method, the overshoot coefficient and the integral quadratic criterion, which are widely used in the practice of automatic control, are used.
Do the Elements of Emotional Intelligence Determine Charismatic Leadership?
Authors: Biswas Mohona , Rahman Md. Sahidur
Published: May 2021

Purpose: Emotional intelligence is a critical stimulus of charismatic leadership. This research is an effort to detect the relationships between the elements of emotional intelligence and charismatic leadership. 

Method: Purposive sampling technique was adopted to assemble data from 356 bankers working in different private commercial banks in Bangladesh. The Emotional Quotient Index (EQ Index: Rahim et al., 2002) and a Multifactor Leadership Questionnaire (MLQ 5X: Bass &Avolio, 2000) were used to assess emotional intelligence and charismatic leadership respectively. A total of 356 usable responses were received which were analyzed using descriptive statistics, Pearson correlation, and linear regression.

Results: The study revealed that all elements of emotional intelligence, namely, self-awareness (r=.64, p<.001), self-regulation (r=.62, p <.001), motivation (r = .65, p< .001), empathy (r = .63, p< .001), and social skills (r = .59, p <.001) were positively correlated with charismatic leadership. It also demonstrated that potential covariates (e.g. experience, age, employee, department, education, gender, and position) shared a negligible correlation with emotional intelligence and charismatic leadership.

Implications: These unique findings would be helpful to academics, scholars, policymakers, and managers/executives of commercial banks to flourish their charisma by cultivating and boosting emotional intelligence to realize a higher level of organizational outcomes.

Limitations: The generalizability of the findings is limited by its particular sampling technique which is less reliable.
TRANSPARENCY INDICATORS TO IMPROVE ACCOUNTABILITY FOR NON-PROFIT ORGANIZATIONS: A SPANISH CASE STUDY
Authors: Moreno-Albarracín Antonio Luis , Ortega-Rodríguez Cristina , Licerán-Gutiérrez Ana , Labella Álvaro , Martínez Luis
Published: May 2021

We are currently witnessing the development of a set of organizations that have been entrusted with meeting the very diverse needs of citizens. As a result, they receive funds, in order to ensure they are managed appropriately. The transparency of the information revealed by Non-profit Organizations (NPOs) has become of increasing interest to public authorities and research. However, very few studies empirically measure the extent of transparency in NPOs. Only a handful checked the compliance of various indicators, lacking agreement on which ones to include and their weighting. To address this issue, this study empirically validates the weighting of the indicators from the alliance between the Platform for Social Action NGO and the Spanish Coordinator for Development NGO (CONGDE) document with experts in NPOs’ opinions. We use the Best-Worst Method (BWM) to optimally assign weights to multi-criteria decision making situations. Our results show interesting differences in the level of importance given to the indicators by public authorities and experts, suggesting the need for a revision of the importance proposed.
Pulse Profile Variations Associated with the Glitch of PSR B2021+51
Authors: Liu Jie , Wang Hong-Guang , Yan Zhen , Shen Zhi-Qiang , Tong Hao , Huang Zhi-Peng , Zhao Ru-Shuang
Published: May 2021

We reported the first glitch of PSR B2021+51 detected with the Shanghai Tian Ma Radio Telescope that occurred around MJD 58289.1 (2018 June 20). The spin frequency and its derivative suffered a jump of about 7.04 × 10−10 Hz and 2.6 × 10−18 s−2, respectively. The pulse width at the 10% intensity level (W
10) of the mean pulse profile significantly decreased right before the glitch and then increased after the glitch, accompanied by an enhancement in the trailing peak of the normalized profile. The mean pulse profiles were decomposed into three Gaussian components, i.e., C1, C2, and C3 from left to right by peak phase. The width of C3 (w
3) had an apparent maximum right before the glitch and its weighted mean value became slightly smaller than the pre-glitch value after the glitch, while the weighted mean values of both w
1 and w
2 had no apparent change. The significant decrease of the mean pulse width right before the glitch is mainly due to the movement of C3 toward C1 and C2, while the increase of the mean pulse width after the glitch results from the movement of C2 toward C3. Changes in the widths of mean pulse profiles and in the widths and phase separations of Gaussian components associated with the glitch convinced us of a connection between the changes in characteristics of the pulsar emission zone and the glitch activity. We discuss a possible interpretation invoking the movements of flux tubes in the emission zone.
Visualizing Multiwavelength Properties of Classified X-Ray Sources from Chandra Source Catalog
Authors: Yang Hui , Hare Jeremy , Volkov Igor , Kargaltsev Oleg
Published: May 2021

We present a simple but informative online tool to visualize the multiwavelength (MW) properties of ≈2700 X-ray sources from Chandra Source Catalog version 2.0 with literature verified classifications. Here we describe the catalogs that we used to collect the classifications and extract the MW properties of these sources, and the properties themselves. We also describe the design and functionality of the tool.
Le statut du lycien et du grec dans les inscriptions pré-hellénistiques de Lycie
Authors: Réveilhac Florian
Published: May 2021

En tant que langue du pouvoir achéménide, l’araméen a, en Lycie, un statut clair, celui de langue officielle centrale, tandis que le lycien demeure la langue de communication et celle du pouvoir local. Le grec, lui, attesté en Lycie dès le v e  siècle avant J.-C., est d’abord indissociable du genre poétique et c’est à ce titre qu’il est utilisé dans des inscriptions publiques par les dynastes lyciens. Ensuite, une fois la Lycie rattachée à la satrapie carienne, le grec accède au statut de langue officielle, à côté du lycien. Dès lors, comme au sein des élites cariennes, il est également employé dans des inscriptions privées bilingues, dont la composition révèle quelques cas d’interférence linguistique.
Meet Your Leaders
Authors: Anonymous
Published: May 2021

In the past four issues of JGN, we have been introducing, individually, the new members of our Editorial Board. With this issue we would like to introduce and welcome, Lucille Gress, RN, MA.
News Update
Authors: Anonymous
Published: May 2021

News and recent findings to keep the gerontological nurse up-to-date
ANNOUNCING THE WINNERS!
Authors: Anonymous
Published: May 2021

The First Annual

JOURNAL OF GERONTOLOGICAL NURSING

Photo Contest 1983
ARTIFICIAL SPHINCTER RX FOR INCONTINENT
Authors: Anonymous
Published: May 2021

INCONTINENCE
EARLY INTERVENTION REDUCES MI RECURRENCE
Authors: Anonymous
Published: May 2021

CARDIAC Rx
ANIMALS THAT EAT LESS LIVE LONGER
Authors: Anonymous
Published: May 2021

NUTRITION
ROLE OF NUTRITION IN CARDIOVASCULAR DISEASE OVER 50 STILL UNCLEAR
Authors: Anonymous
Published: May 2021

CARDIAC RX
LIVING-AT-HOME PROGRAM LAUNCHED
Authors: Anonymous
Published: May 2021

GRANTS
INCONTINENCE SURVEY AVAILABLE
Authors: Anonymous
Published: May 2021

SURVEY
ADULT DAY CENTERS
Authors: Anonymous
Published: May 2021

DIRECTORY
DECUBITUS ULCER TREATMENT OUTLINED
Authors: Anonymous
Published: May 2021

MEDICINE
FREE REPORT AVAILABLE
Authors: Anonymous
Published: May 2021

MARKETING
PUBLICATION IDENTIFIES AGING RESOURCES
Authors: Anonymous
Published: May 2021

DIRECTORY
PROJECT PROVIDES EYE CARE FOR 2,000 CITIZENS
Authors: Anonymous
Published: May 2021

HOTLINE
Georgetown to Study Depression in Elderly
Authors: Anonymous
Published: May 2021

RESEARCH
Bengtson Elected President of the GSA
Authors: Anonymous
Published: May 2021

ELECTION
Vaccine and Amantadine Recommended for Care of Influenza A
Authors: Anonymous
Published: May 2021

TREATMENT
Penn Awarded $3 Million
Authors: Anonymous
Published: May 2021

GRANT
MSU Seeks Participants
Authors: Anonymous
Published: May 2021

STUDY
Quelques repères pour analyser les situations dans lesquelles le travail consiste à agir pour et avec un autre
Authors: Mayen Patrick
Published: May 2021

Cet article est consacré à l’analyse de cette large classe d’activités dans lesquelles le travail consiste à agir pour un autre et avec lui dans le cadre de situations de service, d’aide ou de conseil. Il s’agit de mettre en évidence un certain nombre de caractéristiques propres à ces formes de travail, à leurs conséquences sur les modalités d’analyse du travail que l’on peut mettre en œuvre à leur propos et à leurs conséquences sur la conception et la conduite de dispositifs de formation.
L’éducation à la pitié dans l’Emile
Authors: Demouge Gérard
Published: May 2021

Emile est un « homme naturel », c’est-à-dire un habitant des villes, mais qui partage avec l’homme de la nature la pitié. Comment la civilisation peut-elle ne pas étouffer la pitié ? La réponse à cette question passe par le rappel du principe rousseauiste essentiel, selon lequel nous sommes ce que la situation externe fait de nous. La pitié est un sentiment obscur et vif chez l’homme de la pure nature, car l’absence de séparation entre moi et non-moi fait que l’homme sympathise avec tout être souffrant (homme ou animal). La compétition sociale en est venue à étouffer ce sentiment chez l’homme d’aujourd’hui. Le rôle du pédagogue dans l’Emile est alors de mettre son élève dans des situations sociales telles qu’il puisse se mettre à la place de l’autre souffrant, ce qui implique toute une éducation de l’imagination et de la réflexion. Ainsi éduquées, ces deux facultés, loin d’affaiblir la pitié, en font un sentiment développé et vif.
Research Findings in the Domain of Agile Methodologies
Authors: Kumar Tapan
Published: May 2021

This chapter focuses on examining the impact of distributed agile software development on team performance. In order to get the answer, literature is examined to get necessary information associated with distributed agile software development and team performance along with the models/tools/frameworks, which were used to evaluate the team performance of agile teams. The chapter will then explain how the case study research design was used to get statistics using the data collection method and how the data has been analysed to derive any sort of conclusion and help in answering the research question in more quantified way. The chapter also elaborates with the help of literature analysis the characteristics, existing challenges, success factors, and practices associated with distributed agile software development, team performance, and existing maturity models. This chapter aims to provide insight into the core practices teams can apply when working on digital platforms.
Research Findings in the Domain of CI/CD and DevOps on Security Compliance
Authors: Bobbert Yuri , Chtepen Maria
Published: May 2021

This chapter studies the mapping of governance and security control objectives impacted by DevOps to the corresponding DevOps control objectives. These DevOps objectives introduce either an opportunity or a risk for the achievement of the security and governance control objectives. Finally, the artifact defines a list of SecDevOps controls that have proven to be effective in combining the agility of the DevOps paradigm with the security compliance assurance. The authors examine in collaboration with experts the multiple frameworks to be suitable. The authors define SecDevOps controls that have proven to be effective in combining the agility of the DevOps paradigm with the security compliance assurance. To design this artefact, four widely-used frameworks/standards (COBIT 5, NIST cybersecurity framework, NIST SP 800-53, and ISO 27002) were reviewed for sufficiently detailed security and privacy control objectives and controls. Based on these criteria, NIST SP 800-53 and ISO 27002 standards were selected for comparison and mapping with (Sec)DevOps controls in this research.
Findings and Core Practices in the Domain of CI/CD and DevOps on Security Compliance
Authors: Bobbert Yuri , Chtepen Maria
Published: May 2021

In this chapter, the authors describe the findings and conclusions on “The SecDevOps Capability Artifact.” It is validated by means of an extensive academic literature review and interviews with multiple domain experts and practitioners. An additional validation was performed by comparing the findings of this study with high-level implementation and operational guidance of the DoD enterprise DevSecOps reference design report. The report has as a purpose to describe the DevSecOps lifecycle and supporting pillars, in line with NIST cybersecurity framework, which is a high-level framework building upon specific controls and processes defined by NIST SP 800-53, COBIT 5, and ISO 27000 series. This chapter is concluded with a pragmatic set of core practices academics, and practitioners can use them to ensure security compliance in CI/CD pipelines that ultimately enable teams to work agile on digital platforms.
Pectinase Production by Using Coffee Pulp Substrate as Carbon and Nitrogen Source
Authors: Gasani Okta Novalia , Azizah Azizah , Siswanto Siswanto , Winarsa Rudju , Muzakhar Kahar
Published: May 2021

About thirty-five percent of coffee pulp waste is pectin. It may potentially be a source to be used in the bioprocessing industry. For example, it can be used as a substrate to produce pectinase from microorganisms under solid-state fermentation (SSF). In this investigation, an isolated fungus VTM4 with density 107 spores/mL was grown on coffee pulp medium-based, and after 0-168 hours incubation at 30 °C, pectinase activity was detected. The activity was measured based on reducing sugar released by crude pectinase against 0.5% alkali extract pectin substrate in 20 mM buffer acetate pH 5. The highest reducing sugar produced was 223.34 µg/mL after 72 hours of incubation at 30 °C. The optimum pH on enzyme activity was 4 with the maximum activity 0.747 U/mL and was stable (more than 80%) at a pH range of 4-5.5. The results revealed that the coffee substrate could be utilized as a carbon and nitrogen source to produce pectinase. Further research on purification and characterization of the enzyme to improve pectinase yield production was needed.
Ulva lactuca as Alternative Ferromagcalciforte Sustenance
Authors: Mulyati Mulyati , Rais Zuyen , Yulistiyanto Anggoro Chandra , Hersasanti Mayumi
Published: May 2021

Functional foods containing minerals, nutrients, as well as other active ingredients are essential to support physiological functions. The Chlorophyta macroalga Ulva lactuca (“sea lettuce”) is a popular natural food source due to its abundance in intertidal zones across Indonesia. To further examine its efficacy to the human physiology, analysis of proximate composition (carbohydrate, protein, fat, crude fibre, ash, and moisture content), macronutrient (Na, P, Ca, K, and Mg), micronutrient (Fe, Mn, Cu, Zn, Co, and Cr), heavy metal (Pb, Hg, and Cd), and fatty acid contents need to be done. Results showed that the highest composition of macromolecules is carbohydrates. Macronutrients and micronutrients with the highest values are Mg and Fe, respectively, with Ca also showing a high concentration. Pb and Hg contents are considered safe, but the Cd content exceeds the safety limit regulated by BPOM 2008. The fatty acids contained include methyl octadecenoate and the unsaturated fatty acid linolelaidic methyl ester. Mg, Ca, and Fe have important roles in the body’s systems, i.e., metabolic processes, growth and development, and enzyme activation. The presence of these elements suggests U. lactuca’s potential in maintaining the body’s physiological functions; however, the relatively high content of Cd must be noted.
Understanding the Crystal Structure of Heterometallic Metal-Organic Frameworks in Cadmium Imidazolate Framework-1 with Periodic Density Functional Theory
Authors: Pambudi Fajar Inggit , Fajariatri Kristiana
Published: May 2021

Determining the effect of mixed-metal in metal-organic frameworks (MOFs) is vital to understand the crystal structure and its related properties. The tunability of MOFs provides an opportunity to develop functionalized materials with a specific task. Herein, cadmium imidazolate framework-1 (CdIF-1) as part of MOFs was investigated through a computational approach regarding its possibility for the formation of mixed-metal CdIF-1. The studies were performed by replacing Cd2+ ions in the crystal structure of CdIF-1 with Zn2+ ions to obtain several possible configurations of heterometallic CdIF-1. The calculations were conducted using periodic density functional theory (DFT) with the addition of dispersion correction scheme. Several aspects in the crystal structure were investigated such as the changing in the lattice parameters and unit cell volume, and the bond properties. Replacing several Cd2+ ions with Zn2+ would affect the crystal structure particularly lattice parameters and pore diameters. When all the Cd2+ ions were replaced with Zn2+ ions, a new crystal phase was obtained to give zeolitic imidazolate framework-8 (ZIF-8) material. This study provides an insight into the mechanism in which CdIF-1 is transformed into new crystal phase of ZIF-8.
Effect of Heat Input on Dilution, Hardness, and Microstructure in DMW Stainless Steel and Carbon Steel
Authors: Surasno Surasno
Published: May 2021

The success of Dissimilar Metal Welding (DMW) occurred in optimal Heat-input (HI) parameters. The quality of welding joints was affected by dilution, hardness value, and intermetallic microstructure. DMW quality research was carried out on stainless steel SA SS312-TP304 and SA 53GrB carbon steel using the GTAW (Gas Tungsten Arc Welding) process with Heat-input of 1866.6 to 2362.2 J/mm. Visual observation on weld joints was not found weld defects. The optimal dilution area in the Schaeffler Diagram was obtained 35.35% austenitic area and without ferrite content. The lowest hardness value on carbon steel was 145 HV. The highest hardness value of 197 HV occurred in filler-metal dilution on carbon steel, so the difference in the value of hardness was high. The hardness value on stainless steel was 184 HV and in filler-metal stainless steel dilution was 172– 90 HV, so the difference in hardness value was low. Microstructure filler-metal dilution on stainless steel was austenite-dendritic, filler-metal dilution on carbon steel was fine-grained dendritic, and on allweld metal coarse-grained dendritic metal. HAZ stainless steel austenite microstructure and ferrite-pearlite carbon steel with an indication of a ferrite net. Observation of dilution, hardness value, and microstructure in DMW did not have a significant effect. This welded joint could be used as a reference in the DMW fabrication process for stainless steel and carbon steel pipe connections.
Activity of Ni-NH2/Mesoporous Silica Material as Bifunctional Catalyst for Hydrocracking of Used Cooking Oil
Authors: Trisunaryanti Wega , Triyono Triyono , Hadjarningrum Siti A Nur , Fatmawati Dyah Ayu
Published: May 2021

Synthesis of Ni-NH2/mesoporous silica bifunctional catalyst for conversion of used cooking oil into biofuel was carried out. The impregnation of Ni into the MS8 with a specific surface area of 666.6 m2/g, volume pore of 0.46 cm3/g, and diameter pore of 4.9 nm was done by wet impregnation method. The functionalization of NH2into the MS8 and Ni/MS8 was done by the grafting method. The catalytic activity test in used cooking oil hydrocracking was done by thermal (without catalyst), catalyst physical mixture of Ni/MS8 and NH2/MS8, and Ni-NH2/MS8 bifunctional catalyst. The results showed that the Ni/MS8 catalyst with acidity values ​​of 12.804 mmol/g was successfully modified with amine groups to produce Ni-NH2/MS8 bifunctional catalyst. This catalyst was utilized in the hydrocracking process of used cooking oil to produce the highest liquid product of 92.85 wt.% with the selectivity of gasoline and diesel fractions of 4.04 and 63.35 wt.% respectively.
Preparation of Synthetic β-Wollastonite Produced from Amorphous SiO2 Bamboo Leaf Ash and Meretix meretix Shell
Authors: Mardina Dian , Asmi Dwi , Badaruddin Mohammad , Zulfia Anne
Published: May 2021

The objective of this study is to produce b-wollastonite from amorphous SiO2 obtained from bamboo leaf ash (BLA) and CaO derived from meretix meretix shell (MMS) using solid state reaction. Amorphous SiO2 utilization in this work obtained by precipitation of BLA and calcined at 700 °C for 3 h, whereas CaO MMS was generated by calcination of MMS at 1000 °C for 5 h. High purity amorphous SiO2 obtained was 99.325 wt % and CaO purity obtained was 97.531 wt %. Single phase of b-wollastonite found in this study as confirmed by XRD results. The vibrations at 933.42 , 904.49, and 890.99 cm-1 were caused by the Si-O-Ca bond, which shows the bonding of b-wollastonite obtained from the FTIR. The acicular morphology of b-wollastonite with average grains size of 0.28,0.33 and 0.71 mm was obtained for the samples calcined at 900 , 1000 , and 1100 °C respectively.
Particle Size and Microstructure Characterization of Uncontrolled Burning Rice Husk Ash (RHA) as Pozzolanic Material
Authors: Riza Fetra Venny , Hadipramana J. , Rahman I.A. , Faisal A.
Published: May 2021

RHA has been the subject of investigation for its pozzolanic activity that heavily linked to the controlled temperature burning process in order to achieve amorphous form of silica. This paper present the characterization of RHA that was taken directly from the boiler of rice mill with uncontrolled burning temperature. Particle size analysis revealed grinding process of RHA could significantly curb the diameter size and increased specific surface area. Microstructure analysis suggest that RHA is very porous and EDX test showed the chemical content of RHA. The prospect of using uncontrolled burnt RHA as part of construction material is feasible.
Analysing spatial and temporal dynamics of suicide in South Korea: An application of the dynamic spatial panel data model
Authors: Yeom Yunho
Published: May 2021

This study examines the relationship between the suicide mortality rate and structural covariates in South Korea from 2008 to 2017 under Durkheim’s theory of suicide. It applies the dynamic spatial panel data model to explore both spatial and temporal aspects of the suicide phenomena recognising statistical limitations in previous suicide research based on either cross-sectional or longitudinal methodology. The results demonstrate that the suicide mortality rates in South Korea are spatially and temporally dependent on those of neighbouring units or its own time-lagged suicide mortality rates. Moreover, this study estimates that the divorce rate, unemployment rate and land price index, which are assumed to be proxies of social integration and regulation, significantly impact the suicide mortality rates. The results imply that deteriorating socioeconomic conditions are risk factors for the suicide mortality rate and suggests implementing policies to alleviate the high level of social disintegration caused by Korea’s deteriorating socioeconomic conditions.
Lipid-lowering therapy in high cardiovascular risk patients during COVID-19 pandemic: keep focused on the target
Authors: Cesaro Arturo , Riccio Carmine , Calabrò Paolo
Published: May 2021

To the Editor
COVID-19 (COrona VIrus Disease) patients with cardiovascular (CV) disease, multiple CV risk factors or comorbidities (i.e., arterial hypertension and diabetes) were shown to be more prone to a worse prognosis. SARS-CoV-2 is a still unknown enemy and the role of concomitant cardiovascular therapies has been controversial in the early stages, particularly with regard to Angiotensin-Converting Enzyme inhibitors...
Quantitative analysis of cell-free DNA by droplet digital PCR reveals the presence of EGFR mutations in non-malignant lung pathologies
Authors: Venkataram Rajesh , Arjuna Srividya , Hosmane Giridhar Belur , Chakraborty Anirban
Published: May 2021

Tyrosine kinase inhibitors (TKIs) targeting epidermal growth factor receptor (EGFR) are effectively used in treatment of non-small cell lung cancer (NSCLC). Mutation profile of tyrosine kinase domain of EGFR determines the eligibility of the patients for tyrosine kinase inhibitor (TKI) therapy. Liquid biopsy, which relies on circulating tumor-derived nucleic acids, has emerged as an effective tool in lung cancer management with proven diagnostic, prognostic and predictive applications. We screened 100 subjects, suspected to have lung malignancy, for four hotspot mutations including three activating (G719S, Ex19del E746-A750 and L858R) and one acquired (T790M, de novo) in EGFR gene by droplet digital PCR (ddPCR). While 97 subjects were subsequently confirmed to have lung malignancy based on histo/cytopathological studies, three cases turned out to be non-malignant lung pathologies that were completely cured by antibiotic therapy. Intriguingly, ddPCR revealed the presence of EGFR mutations in these non-malignant subjects. Two cases showed the presence of G719S and T790M mutations respectively and another had compound mutations (T790M and L858R). The detection of EGFR mutations in non-malignant pulmonary conditions opens up a new area of research.
I PARASSITI NELLA STORIA DELL'UOMO: INFEZIONI DEL PASSATO, MALATTIE NEL PRESENTE
Authors: Bandi Claudio , Bisaglia Beatrice , Alvaro Alessandro
Published: May 2021

This article will present the concept of evolutionary mismatch, in relation to the reduction in the circulation of pathogenic (or quasi-pathogenic) microorganisms and macro-parasites in human populations, throughout human and pre-human history. In particular, we will refer to the variegated community of parasites and microorganisms, prokaryotes or eukaryotes, pathogenic or only marginally or occasionally pathogenic, which evolved as inhabitants of our bodies together with us human beings and our ancestors. For simplicity, we will generically refer to these organisms as parasites. These organisms, once present endemically in the populations of our species, are believed to have developed a complex network of interactions with our physiological systems, particularly with regard to stimulation of the immune system. In this dynamic, the host organism, in turn, would have evolved countermeasures to the chronic presence of parasites, with a bias towards the modulation of the immune response, somehow specific for the different types of stimulation determined by the parasites. The drastic reduction in the circulation of parasites in industrialized societies would therefore have left an imbalanced immune system behind it. According to this view, which we can refer to as the “hygiene hypothesis”, the increase in the incidence of various immune-mediated diseases in industrialized countries would be attributable, at least in part, to this imbalance of the immune function.
Bibliometric Analysis of the Research on Seamless Learning
Authors: Talan Tarık
Published: May 2021

Seamless learning has a significance that has been increasing in recent years, and an increasing number of studies on the subject in the literature draws attention. This study aimed to examine the research on seamless learning between 1996 and 2020 with the bibliometric analysis method. The Scopus database was used in the collection of the data. After various screening processes, a total of 389 publications were included in the analysis. Descriptive analysis and bibliometric analysis were used in the analysis of the data. The distribution of publications by years, types of publications, sources, and languages were analyzed in the research. Additionally, visual maps were created with analyses of co-author, co-citation, and co-word. At the end of the study, it was seen that there has been an increase in the number of publications from the past to the present, articles and papers were predominant, and that most of the studies were carried out in English. As a result of bibliometric analysis, it was concluded that the most efficient countries in seamless learning were the United Kingdom, the United States, and Singapore. Also, it has been determined that the National Institute of Education, Center for International Education and Exchange, and Kyushu University institutions are dominant. The most frequently mentioned authors cited in studies in many different fields are M. Sharples, L.-H. Wong, and H. Ogata. According to the co-word analysis, the keywords seamless learning, mobile learning, ubiquitous learning, and mobile-assisted language learning stand out in the field of seamless learning.
Caracterização da pesca e importância dos crustáceos a partir da percepção de pescadores artesanais do sul do Espírito Santo, Brasil
Authors: Braga Adriane Araújo , Oliveira Ana Carolina Machado de , Zappes Camilah Antunes
Published: May 2021

O conhecimento tradicional de pescadores acerca da biologia e da ecologia dos recursos naturais é importante para sua preservação e conservação. O presente estudo descreveu a importância dos crustáceos a partir da percepção de pescadores artesanais que atuam no litoral sul do estado do Espírito Santo, Sudeste do Brasil. Essas observações foram realizadas entre setembro de 2016 e fevereiro de 2017, totalizando 92 entrevistas. Os pescadores são do sexo masculino, com idades entre 18 e 71 anos e possuem baixa escolaridade. Para os entrevistados, os crustáceos apresentam importância ecológica, pois fazem parte da cadeia alimentar e do ecossistema, sendo utilizados para comercialização e consumo próprio. Relatam também o uso de siris e caranguejos na confecção de isca. Os pescadores consideram o período do defeso importante, porém incorreto para a região. Os resultados demonstram a importância dos estudos etnoecológicos para compreender a percepção de atores locais envolvidos na pesca artesanal e, com isso, facilitar o diálogo entre gestores e comunidades pesqueiras.
Storage of Simarouba amara Aubl. seeds
Authors: Santos Jiovana  Santos Pereira Amorim , Reis Mendonça Andrea Vita , Carvalho Edvania Da Silva , Hora de Souza Marcus Dhilermando , De Souza Manuela Oliveira
Published: May 2021

Prior knowledge about the physiological behavior of seeds under storage conditions allows the use of appropriate techniques to maintain viability. The goal of the present study was to classify the behavior of Simarouba amara seeds regarding their physiological potential during storage. The seeds were obtained from mature fruits, collected from five parent plants located at the Joanes-Ipitanga Environmental Protection Area (EPA) (Simões Filho, Bahia) in January 2018. Two experiments were carried out in a completely randomized design. In the first one, seed desiccation tolerance was evaluated with seven moisture contents: 5%, 7.5%, 10%, 12.5%, 15%, 25% and 35.6% (initial moisture). A germination test was carried out to evaluate the seeds’ vigor. In the second experiment, the seeds were stored with moisture contents of 7.5%, 12.5% and 35.6% at temperatures of 8 °C, 15 °C and 20 °C) for two storage periods, two and four months, and samples were taken to determine moisture content and conduct the germination test. Germination tests were performed in BOD chambers at 30 °C and with 12-hour light photoperiod. Daily counts were performed for the number of germinated seeds. We measured germination percentage, mean germination time, uncertainty index, percentage of normal seedlings, and percentage of unviable seeds. Simarouba amara seeds tolerate desiccation up to 7.5% moisture content, but lost viability when stored under this condition. At four months of storage all seeds lost viability. Simarouba amara seeds are recalcitrant and lose viability before reaching two months of storage.
Primeiro registro documentado de Leucopternis melanops (Latham, 1790) (Aves: Accipitridae) no estado do Maranhão e atualização da distribuição geográfica da espécie no Brasil
Authors: Pinheiro Leonardo Victor Soares , Cerqueira Pablo Vieira , Leite Gabriel Augusto , Fialho Marcos De Souza , Gonsioroski Gustavo
Published: May 2021

O gavião-de-cara-preta, Leucopternis melanops (Latham, 1790), é o representante do gênero com a maior distribuição geográfica, sendo regular na calha norte do rio Amazonas e com raros registros na calha sul (Acre, Amazonas, Mato Grosso, Pará e Rondônia). Em 24 de junho de 2018, um indivíduo de L. melanops foi encontrado no município de Centro Novo do Maranhão, estado do Maranhão, Brasil, dentro dos limites da Reserva Biológica do Gurupi, sendo este o primeiro registro documentado para o estado. Este registro, somado a outros, serviu para atualizar os limites da distribuição da espécie no Brasil, além de destacar a importância do mosaico Gurupi em manter espécies pouco comuns.