bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental assessment of moisture buffering active devices for indoor humidity control
Authors: Di Giuseppe Elisa
Published: June 2022

A high thermal resistance and air tightness of the building envelope risk to create great internal moisture load with consequences for durability of materials and inhabitants’ comfort and health. The passive solution here proposed is a moisture buffering “active” device (MB-AD), to be integrated in the building envelope, which is able to measure the RH indoors and react by increasing the MB ability of a material forcing the passage of air inside it. The hygrothermal performance of the device has been experimentally tested and results showed that the Moisture Buffering Value measured in the “active” device increased until 29% more than the “passive” one.
Pre-cast concrete walls: techniques and technologies for performance optimization
Authors: Scioti Albina
Published: June 2022

The paper is going to describe the studies toward construction and control of an innovative semi pre-cast composite wall, as efficient system for energy saving, performance improvement and static optimization. In detail, the present paper focuses on technical and technological issues for design and construction of semi pre-cast panels, in order to achieve both high quality of the final product, in terms of tightness of connections and ease of assembly, and reduction of energy dispersions and thermal bridges.
Life Cycle Assessment Applications To Construction Sector
Authors: Vite Clara
Published: June 2022

The Life Cycle Analysis (LCA) is a method developed to assess environmental impacts associated with all the stages of a product's life “from cradle to grave” (from raw material extraction, materials processing, production, transport, use, maintenance until end of life). The LCA has been developed for the industry but can also be applied to construction sector. The research was developed in several stages in order to know the Life Cycle Analysis and to test its application at different levels in the construction sector: products, building elements and new or existing buildings.
Works of Giuseppe Nicolosi in Cassino: history of the building process and restoration
Authors: Fragnoli Franco
Published: June 2022

The town of Cassino, located in Southern Lazio and stronghold of the German defensive line Gustav, was fully involved in the famous wartime events of the Second World War and, as well know, was completely destroyed its building heritage and infrastructure’s apparatus. Therefore, just after the war the reconstruction of a city without its urban polarities and ordinary residential buildings began. From these issues, the design and construction experience in Cassino of Giuseppe Nicolosi got started. The paper refers this history and provides a contribution to the Italian engineering history of the late twentieth century
Materials for sustainable transformation of fragile contexts. Designing, building, layering
Authors: Cadoni Stefano
Published: June 2022

The field of interest of this research is the design and the construction in historical contexts. This work has its conceptual structure in the theme of the dual capable of investigating a key aspect of the issues between old and new: their relationship. The lecture key allows a first important step: the interpretation of complex problems through their reduction to pairs of concepts and thus related relations, among which the project takes place. At the base of this research is the vision of architecture primarily as an outcome that may be investigated in its results and its foreshadowing premises and projects.
Rehabilitation technology of traditional architecture: managing coexistence between conservation and innovation
Authors: Cannas Leonardo
Published: June 2022

The study presented in this abstract focuses its attention on the rehabilitation by the technological point of view of traditional architecture that belongs to historical city nucleus. Which building technology characteristics are considered as constant, and which ones are considered as changeable, in today rehabilitation practice, with respect to the problem of managing the coexistence between conservation of the cultural values and innovation to respond to contemporary exigencies? This study tried to answer this question by applying a comparative case study strategy.
The construction of the historic theatres in the Sicilian area: knowledge as a tool for their rehabilitation
Authors: Lo Sardo Patrizia
Published: June 2022

In Sicilian area, as well as elsewhere in Europe, the theatres built between the last decades of the XVIII century and the beginning of the XX century are progressively disappearing because of integrations and substitutions required by the new “modernity”, the change of use of the building itself that do not respect the original purpose. Nevertheless, beyond the updates caused by the respect of the new laws concerning the security in public spaces and a great confidence in concrete, there are still many theatres witness of this very interesting typology. This study recognizes and analyses the peculiar elements of major and minor theatre structures.
Analysis and methods of seismic risk in the historic urban areas: the case study in city of Salerno
Authors: Landi Alessandra
Published: June 2022

The research described in the abstract presents a procedure to address risk assessment of large-scale urban systems with the aim to contribute at the development of risk mitigation policies for downtowns buildings. The observation of the earthquakes effects in Italy clearly highlights the role of the high vulnerability of the existing building on the consequences in terms of casualties and damage, rather than the severity of seismic events, especially in historical contexts. The objective of this study is to propose a procedure and a tool for the assessment and mitigation of seismic risk in urban areas.
Materials for the sustainable transformation of weak contexts
Authors: Oggiano Francesca
Published: June 2022

The structures, the forms, the relational subsystems, the permeabilities, the porosities, the spacial stratifications that define the systems to access and penetrate places are the subjects that direct the reading. The materials, the techniques and the wisely-constructed forms of those pertincences that are found in the most solid and well-preserved environments are the investigation subject with the aim to read the built example of a system of cozy spaces within them. Those places still can teach both a profound spatial and building design lesson.
Analysis of cooperative interpretation of constructive and degradationinformations for the assessment of the state of physical preservation oftraditional architectures in prevalent vertical development. TheANVIV protocol
Authors: Colapietro Domenico , Fatiguso Fabio
Published: June 2022

The assessment of the conservation status of traditional architectures historical scale requires more extensive analysis tools, which make it possible to synthesize and process parameters of interest for the formulation of an opinion on the state of conservation of the same. The research proposes the development of a protocol for the acquisition of information and interpolation degradation and construction for each sub-system connoting the building, in a position to comment in an expeditious status global and local conservation of the same.
Masonry between Art and Science: guidelines for restoring hall buildings
Authors: De Guglielmo Fabio
Published: June 2022

In this paper a methodology of analysis and intervention for masonry structures is proposed, with particular reference to hall buildings, whose composition is governed by a continuous space with a representative function. In a climate where the principles of restoration are to be respected along with those of structural safety, it is necessary to carefully study the historical, geometric and technological aspects of buildings and use models of structural analysis which allow to limit the consolidation works by interpreting the actual static behavior of masonry constructions.
Sustainability in the restoration and management of the historic architecture in Palermo
Authors: Genova Enrico
Published: June 2022

This research investigates the energy and environmental sustainability in the restoration and conservation of historic buildings. It focuses on the architectural heritage of Palermo, which can be a significant case study for the Mediterranean area. Its objective is to analyse the current energy performance of this historic architecture and its potential for energy improvement. Therefore, it aims at proposing a methodology to combine the enhancement of energy and environmental performances of the historic architecture of Palermo with the need of its material and aesthetic conservation, in the frame of the current regulations.
Evolutionary aspects of the technology of building wood
Authors: Guagliardi Valentina
Published: June 2022

The research has as its objective the analysis of the evolutionary aspects of the technology of wood in the planning and realization of the residential house building. Through the study of the architectonic and structural features of the heritage, and of the recent innovations of wood, the historical evolution of the construction methods is pointed out together with the possibility of using wood as structural material. These timber structures have elevated performances, both for their sustainability and energetic efficiency, and for their fire and seismic resistance.
The horizon of technical knowledge in Architecture
Authors: Gulli Riccardo
Published: June 2022

Editorial
Design of a construction site in a healthcare facility supported by simulative approaches
Authors: Maria Coraglia Ugo , Fioravanti Antonio , D'Alessandro Daniela , Simeone Davide
Published: June 2022

This research aims at providing a model to support the design of a low-impact construction site, in a healthcare facility, through an integrated system of BIM models, as databases of geometric information and semantics relating to use, and qualitative simulations of energetic- environmental phenomena and behaviour and activities of the actors involved, developed through a Game Engine. The interaction between the “enriched” model and the simulation environment represents a possible way of estimation of the risks, costs and impact on the healthcare setting, supporting the selection of the best management and design solutions.
The Dopolavoro building in Carbonia. Conservation, renovation, reuse
Authors: Sanna Antonello , Sanjust Paolo , Monni Giuseppina
Published: June 2022

The Dopolavoro for the employees was designed in 1973 by G. Pulitzer Finali and it represents the most authentic modern building in the central square of Carbonia. It is an autarchic work where the wall structure supports prefabricated slender reinforced concrete trusses, adapted from mine industrial buildings. The renovation, started in 2001 by the local municipality with the consultancy provided by the DICAAR, has responded through diversified approaches on the issues arising from new usage needs, deterioration and modification to discrepancies with the original project, the implementation, and following improper intervention works.
Technologies for water management. Traditional and modern building techniques in western Sardinia
Authors: Marras Francesco
Published: June 2022

The research deals with the study of architecture that rule water control in countryside and devices that define a territorial network of hydraulic heritage. The aim of the research is to underline relationship between water and architecture, with a deepening on the relations between villages, countryside and different technologies of management depending by territorial characters. Water techniques can still offer extraordinary examples of sustainable process and project, where the role of technologies is that of producing forms able to control water. Case by case analysis has led to definition of an abacus of water building techniques.
Designing the Inclusive Built Environment: An Exploration of Opportunities Offered by ICTs
Authors: Conte Emilia
Published: June 2022

ICTs and other technologies already assist people with disabilities in daily living; however, opportunities offered by these technologies during the design of the inclusive built environment are not much explored. The BE-free@campus project conducted at the Polytechnic University of Bari, Italy, is reported as an experiment testifying how potentials of ICTs can be exploited. Results of the project, i.e. (i) a personal digital assistant for navigation of students with disabilities and their caregivers in University buildings and spaces and (ii) criteria for the meta- design of a University PEBA, can be exported to other contexts of application.
Entity and identity of metal additions in ancient buildings
Authors: Ciammitti Laura
Published: June 2022

The research investigates the role of steel in pre-existence, at first confined to consolidation, later extended to reuse. The metal artificial nature and the untraditional constructive system make more complex the issue of addition visibility in pre-existence, employed for static purposes or functional aims. Anyway, the iron entity is expressed each time in a specific way, which is compatible to the historic building, concealed among the masses involved, or highlighted in its essentiality.
The “Mandolesi Pavilion”: an information model for a process of integrating multidisciplinary knowledge
Authors: Quaquero Emanuela , Sanna Antonello , Monni Giuseppina
Published: June 2022

The Mining Engineering Pavilion was designed by Enrico Mandolesi in 1962. It represents an icon heralding the transition from masonry to reinforced concrete and the use of "new" materials. Its recovery may become an important starting point for integrating all scientific levels, from the construction history, which reconstructs the history of the project and that of the building site, up to the most sophisticated energy diagnoses that include the definition of an integrated information system on the building, to be used in cutting-edge style with the BIM approach or even with experimentation in a first-step evolution towards a cognitive building.
Reinforcedbrick light-weight vaults
Authors: Paolini Cesira , Pugnaletto Marina
Published: June 2022

At the beginning of the Thirties, Italy witnessed a widespread experimentation in new building methods resulting in the construction of examples of quite daring vaulted roofing using reinforced and partly prefabricated brick blocks, a predominantly national material. This research resulted in the construction of many buildings, initially to be used for industrial purposes, which offer interesting construction and structural solutions and are distinguished by their large-sized roofing, with single or double curved surfaces, a significant feature of internal spaces.
Basalt fibre continuous stitchings for strengthening the dry stone masonry of the Lossetti Tower in Beura-Cardezza (Italy)
Authors: Lenci Stefano , Monni Francesco , Quagliarini Enrico
Published: June 2022

Dry stone masonry is widely used in rural and mountain regions and its consolidation is a challenge issue if it is wanted to preserve the peculiarities of masonry texture. In this paper is presented the design approach used for consolidation intervention of Lossetti Tower - a medieval dry stone watchtower located in Beura-Cardezza (Italy, Piemonte Region) - using the technique of continuous basalt fibres stitching, consisting in creating a mesh of BF ropes, which pass through the masonry thickness and tie blocks together. A 3D laser scanner survey of the tower was executed and, to evaluate the technique effectiveness, diagonal compression test on masonry specimens was done, in order to develop a tailored design of the strengthening intervention, in perfect compatibility with the original structures.
Architecture between Technique and Materiality
Authors: Guida Antonella
Published: June 2022

Editorial
Textile mills in Friuli (XIX-XX century). Building technique analysis and seismic refurbishment
Authors: Bertolazzi Angelo , Croatto Giorgio , Turrini Umberto
Published: June 2022

The conservation of industrial architectures and the refurbishment project, must take into account the growing attention to the seismic risk of the built heritage, which the recent events of central Italy have made dramatically current. The different constructive nature and structural behavior of industrial buildings, impose a different approach, combining the new functional needs - and therefore the safety of the building - with its conservation as a testimony for future generations. The work focuses the Friulian textile industry buildings (XIX and XX century), studying their constructive techniques and identyfing some guidelines for the refurbishment.
Fire Safety Engineering: evacuation management in emergency conditions
Authors: Vancetti Roberto , Angelini Sara
Published: June 2022

The disruptive events that occurred in Italy in 2016 have increased the attention to the evaluation of the evacuation procedures in emergency conditions. The strategies to adopt should be established on the basis of performance-based criteria of design and management, which are the same used in Fire Safety Engineering. In the specific case of the evacuation plan, the latter should be designed according to certain variables that may be successfully used also in other kinds of emergencies related to earthquakes or hydrogeological instability.
Towards the cognitive building: information modeling for the energy audit
Authors: C. Tagliabue Lavinia , L. C. Ciribini Angelo , Quaquero Emanuela , Villa Valentina , Martino Di Giuda Giuseppe , Sanna Antonello , Desogus Giuseppe
Published: June 2022

The new paradigm of smart building requires the accomplishment of occupants needs through the analysis of data gathered within the building, which switches from activities host to provider of customized services for occupants. The digitalization supports this new approach, as the implementation of Building Management Systems (BMS) in Building Information Modelling (BIM) environment allows to link the information collected to a database. The contribution is focused on a case study of the University of Cagliari, the Mandolesi Pavilion, and it is aimed at implementing and improving energy audit procedures by the use of Building Information Modelling.
Safety and conservation
Authors: Quagliarini Enrico
Published: June 2022

Editorial
People-centred deep renovation practices: from challenges to strategies
Authors: DOca Simona , op t Veld Peter
Published: June 2022

This paper bases its considerations from the refusal of the prevailing perception that buildings consume energy, and assumes, on the contrary, that it is actually people, that consume energy for their comfort. This means that it is necessary to identify the end users behaviour, actions and habits in relation to the use of energy and their way to make decisions regarding energy retrofit interventions. This should be done considering also the economic savings and the costs, health and wellbeing of people as important drivers in the decision-making process. To do so, in this paper, we will try to position the main challenges encountered by users in the deep renovation first, hence disclosing some possible strategic actions for the uptake of a people- centred revolution of the renovation market in EU.
Mapping and monitoring building decay patterns by photomodelling based 3D models
Authors: Alessia Galantucci Rosella , Fatiguso Fabio , De Fino Mariella
Published: June 2022

A framework is presented for the evaluation and diagnosis of the state of conservation of the built heritage, based on the use of virtual immersive environments and three-dimensional models, as essential tools for the analysis and correlation of diagnostic data. Thus, some early studies are presented on the application of image processing routines that might extract from the point clouds some relevant information toward the semi-automated control of cracking patterns and surface alterations in heritage buildings
The energetic characterization of solar-control environments
Authors: Salaris Chiara , Innamorati Roberto , Frattolillo Andrea , Loddo Gianraffaele
Published: June 2022

Despite the increasingly pressing regulations in the energy sector (EPBD recast, law 90/2013 and the consequent decree 162 of 2015), which push towards policies and financial measures to promote buildings with almost zero energy, the quality of the internal environment remains one of the critical parameters on which to pay more attention in view of a consistent evaluation of the Nzeb building. The authors show, in the present paper, the results related to the energetic characterization of two test rooms, identical for surface and opaque envelope, but with different typologies of windows on the South-East and South-West wall.
Fire safety issues in high-rise building façades
Authors: Lucchini Angelo , Sergio Mazzucchelli Enrico , Stefanazzi Alberto
Published: June 2022

Many recent fire events demonstrate that the need of improving the technical knowledge and the practical procedures in the design of the façade systems to be used in high-rise buildings, especially for what concerns the fire vulnerability, is still very strong. Through the analysis of some case studies and examples, the paper highlights the need to investigate and solve these aspects, both in terms of detail design and materials choice, as well as through appropriate specific FSE (Fire Safety Engineering) analysis and laboratory tests.
Arte, legge, restauro
L’Europa e le prime prassi per la protezione del patrimonio
Authors: Mannoni Chiara
Published: June 2022

This volume collects the outcomes of the conference Art – Law – Restoration, that was held at the University Ca’ Foscari of Venice in July 2021. Through the studies outlined by several international scholars, crucial aspects of the history of heritage protection and restoration in sixteenth- to nineteenth-century Europe are reconsidered, combining different disciplines and geographical contexts into a comparative perspective. The systems elaborated in the early modern States to preserve artefacts, monuments, and antiquities are evaluated following multifarious approaches – including archaeology, art history, history of law, social history, and the history of museums. Particular consideration is given to the practices established in the Kingdom of Naples, Spain, the Grand Duchy of Tuscany, Greece, Prussia, the Papal States, Portugal, and the Scandinavian Countries to protect what they thought of as ‘heritage’ respectively. The project LawLove and the publication of this volume are supported by the European Commission (Marie Skłodowska-Curie project no. 837857).
Model Pembelajaran Kooperatif Tipe Student Teams Achievement Division Untuk Mengetahuin Perbedaan Kemampuan Pemecahan Masalah dan Motivasi Belajar Siswa
Authors: Prayoga Muhammad Fery , Safitri Desi , Fahmi Fauzi , Damanik Muhammad Hayyanul
Published: June 2022

Abstrak. Pemecahan masalah matematika merupakan salah satu tujuan penting dalam pembelajaran matematika bahkan proses pemecahan masalah matematika merupakan jantungnya matematika. Penelitian ini merupakan penelitian eksperimen dengan jenis penelitiannya adalah quasi eksperimen (eksperimen semu) sebab kelas yang digunakan telah terbentuk sebelumnya. 1) Adanya perbedaan kemampuan pemecahan masalah matematis siswa yang diajarkan menggunakan model pembelajaran Kooperatif tipe STAD dengansiswa yang diajar menggunakan model pembelajaran Ekspositori pada materi turunan fungsi aljabar kelas XI SMA Negeri 1 Secanggang. 2) Terdapat perbedaan motivasi belajar siswa yang diajarkan menggunakan model pembelajaran Koopertif tipe STAD dengan siswa yang diajar menggunakan model pembelajaran Ekspositori pada materi turunan fungsi aljabar kelas XI SMA Negeri 1 Secanggang. 3) Terdapat perbedaan kemampuan pemecahan masalah matematis dan motivasi belajar siswa yang diajarkan menggunakan model pembelajaran Koopertif tipe STAD dengan siswa yang diajar menggunakan model pembelajaran Ekspositori pada materi turunan fungsi aljabar kelas XI SMA Negeri 1 Secanggang Kata Kunci: Model Pembelajaran Kooperatif, Student Teams Achievement Division (STAD), Kemampuan Pemecahan Masalah, Motivasi Belajar, Pembelajaran Matematika Abstract. Mathematical problem solving is one of the important goals in learning mathematics even the process of solving math problems is at the heart of mathematics. This research is an experimental research with the type of research is quasi-experimental (quasi-experimental) because the class used has been formed beforehand. 1) There is a difference in the mathematical problem solving abilities of students who are taught using the STAD cooperative learning model with students who are taught using the Expository learning model in the derivative material of algebraic functions in class XI SMA Negeri 1 Secanggang. 2) There is a difference in the learning motivation of students who are taught using the STAD Coopertive learning model with students who are taught using the Expository learning model on the derivative material of algebraic functions in class XI SMA Negeri 1 Secanggang. 3) There are differences in mathematical problem solving abilities and student learning motivation who are taught using the STAD Coopertive learning model with students who are taught using the Expository learning model in the derivative material of algebraic functions in class XI SMA Negeri 1 Secanggang Keywords: Cooperative Learning Model, Student Teams Achievement Division (STAD), Problem Solving Ability, Learning Motivation, Mathematics Learning
ANALISIS DINAMIKA PENYEBARAN COVID-19 DENGAN LAJU INSIDEN NONLINEAR
Authors: Putri Nurul Qorima , Sianturi Paian
Published: June 2022

This research is focused on discussing the SEIQRS epidemic model for the spread of the COVID-19 disease with a nonlinear incidence rate. From the result of analysis of the SEIQR model obtained two equilibrium point these are diseases free equilibrium points and endemic equilibrium point. Then, the analysis of the completion behavior is done by using eigenvalues and stability around equilibrium point, the obtained result of the diseases free equilibrium point has two stability traits are saddle point, and stable. The stability diseases free equilibrium will be stable when  R0  1, if R0 1 then the equilibrium point is not stable (saddle point) and conversely the positive endemic equilibrium point will be spiral stable. In numerical analysis, it is done by varying the parameter values and using the fourth order runge-kutta approach.
HUBUNGAN PERHATIAN ORANG TUA DAN MOTIVASI BELAJAR TERHADAP HASIL BELAJAR MATEMATIKA SISWA
Authors: Simamora Rianita
Published: June 2022

This study aims to determine the influence of parental attention and learning motivation on mathematics learning outcomes of seventh-grade students of SMP Negeri 1 Pematangsiantar. Parental attention and learning motivation data obtained from an instrument in the form of a closed questionnaire distributed online via google form with good quality because it is valid and reliable. Meanwhile, students' mathematics learning outcomes were obtained from the school's documentation of grades. The test results show that there is a direct effect of parental attention on learning motivation with a t-count of 2.1309 and a significance level of 0.08325; there is a direct effect of parental attention on student mathematics learning outcomes with a t-count of 2.42875 and a significance level of 0.13768; there is an indirect effect of learning motivation on student mathematics learning outcomes with a t-count of 2.58298 and a significance level of 0.14988; there is an indirect effect of parental attention and learning motivation on mathematics learning outcomes. As for the contribution given by parents' attention and learning motivation to mathematics learning outcomes was 28.75% and the total effect was 42.327%. Therefore, the higher parental attention and student motivation, the higher the learning outcomes.
ANALISIS KESALAHAN DALAM MENYELESAIKAN SOAL MATEMATIKA SISTEM PERSAMAAN LINEAR TIGA VARIABEL
Authors: Lelboy Natalia Emanuela , Nahak Selestina , Simarmata Justin Eduardo
Published: June 2022

This study aims to identify and describe the erros experienced by students in solfing comparison questions and to determine the causal factors in completing the comparison material for studenst of SMA Stella Gratia Atambua. The research method used is descriptive qualitative method. The subjects in this study were students of class X SMA Stella Gratia Atambua for the 2020/2021 school year. The data collection techniques used were tests and interviews. The instruments in this study was a test item in the form of a description with 3 numbers of questions and an interview guide. Based on the results of the study, it was found that the average error made by students in the type of reading error 33,33%, the comprehension error was the average error percentage of the error was 45%, the transformation error was with The average percentage of errors is 69%, the error in processing skills is 78%, and the encoding error in writing answers is the average percentase of errors is 80 %.
THE COVID-19 PANDEMIC ERA: THE EFFECTIVENESS OF GOOGLE CLASSROOM MEDIA IN DISCRETE MATHEMATICS LEARNING IN TERMS OF STUDENT LEARNING OUTCOMES
Authors: Simarmata Justin Eduardo , Mone Ferdinandus
Published: June 2022

One of the learning media in the network that is often used in addressing various learning problems during the Covid-19 pandemic is the use of google classroom media. The purpose of this study is to find out the effectiveness of google classroom media in discrete mathematics learning in terms of learning outcomes. The type of research conducted is quasi experiment research to see the consequences of a treatment by comparing the learning outcomes of two class groups (independent class) or two time groups with the same class (dependent class). The research design is applied using one group pretest-posttest design. The samples in this study were all the fourth semester class A students who took discrete mathematics courses at the S1 level of the Mathematics Education Study Program of the Faculty of Education, Timor University which consisted of 40 students. Sample data was processed with descriptive analysis and average difference test using paired sample t test and N-Gain Score. The research results showed that learning outcomes by using google classroom media is quite effective based the students’ test results. The students’ learning outcomes after learning by applying google classroom media were higher than students’ learning outcomes before learning by applying google classroom media.
ANALISIS PROFIL KEMAMPUAN PEMAHAMAN KONSEP MATEMATIS SISWA PADA MATERI OPERASI BILANGAN BULAT KELAS VII
Authors: Buyung Buyung
Published: June 2022

The purpose of this study was to analyze the profile of students' mathematical concept understanding abilities. This research is descriptive research. The strategy used is descriptive qualitative. This research was conducted at SMP Negeri 17 Sinkawang for the 2020/2021 academic year in class VII. The source of this research data is in the form of test results. The results of this study indicate that students' understanding of mathematical concepts with indicators restating a concept, the percentage obtained is 40% and falls into the low category. In the indicator of classifying objects according to the properties according to the concept, the percentage obtained is 33% and falls into the low category. The indicator presents the concept in various forms of mathematical representation, the percentage obtained is 57% and falls into the medium category. The results of this study indicate that the ability to understand the concept of Shiva is still low, it can be seen from the indicators used 2 of them are in the low category.
PENGEMBANGAN BAHAN AJAR BERBASIS PEMBELAJARAN ONLINE UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS SISWA SMA KELAS X
Authors: Eliza Nurmia , Afnaria Afnaria , Syahlan Syahlan
Published: June 2022

The use of teaching materials in schools should pay attention to their impact on students' understanding and critical thinking skills. Teaching materials are one of the media that have the potential to improve students' critical thinking skills. Therefore, teaching materials must meet the requirements of validation, effectiveness, and practicality. For this reason, this study aims to develop online learning-based teaching materials to improve students' critical thinking skills. This research is a development research by applying the Thiagarajan development model and limiting it to define, design, and development. The instruments used are validation sheets, student response questionnaires, and critical thinking skills tests. The trial was conducted on class XMia-1 and XMia-2 students of SMA Budi Insani Medan, each of which amounted to 32 students. The results show that to develop valid, effective, and practical online learning-based teaching materials, it takes hard work to make revisions/improvements as well as criticisms, suggestions, or comments from validators and students.
KONTRIBUSI MODEL INQUIRY TERBIMBING TERHADAP KEMAMPUAN PENALARAN MAHASISWA PROGRAM STUDI MANAJEMEN PADA MATA KULIAH MATEMATIKA EKONOMI
Authors: Malay Irvan
Published: June 2022

The purpose of this study was to determine the contribution of the guided inquiry learning model to the reasoning ability of students. This research is a quasi-experimental study using two groups of samples (experimental and control) that have been declared normal and homogeneous. The study was conducted at SMP Negeri 27 Medan in 8th-grade students with two classes sample, each class with 40 students. The instrument used was in the form of a reasoning ability test consisting of pretest questions (6 items) and posttests (3 items) which have been declared valid and reliable. The results showed that in the guided inquiry class, students 'reasoning ability was influenced by the KAM value of 66%, while in the expository class, students' reasoning ability was influenced by the KAM value of 71.3%. This shows that the contribution of KAM in the guided inquiry class is smaller than the contribution of KAM in the expository class on reasoning ability (66% 71.3%).
PERANAN STATISTIKA DALAM PENELITIAN PENDIDIKAN MATEMATIKA
Authors: Hutasuhut Syafrida Hanum
Published: June 2022

Research is an activity to obtain a solution to a problem or phenomenon that occurs through scientific steps. To understand research, researchers must first understand what statistics are. Statistics is a science that studies the methods of collecting, processing, interpreting and drawing conclusions from the data collected or obtained. Therefore, statistics is said to be one of the sciences that is indispensable in research, not least in the field of mathematics education because statistics are used to identify and describe the relationships obtained from the data that has been collected and then processed to obtain a conclusion. The role of statistics has been seen from before the research was carried out, the research took place until the processing of research results.
Tracing the Geographical Origin of Moroccan Saffron by Mid-Infrared Spectroscopy and Multivariate Analysis
Authors: Elhamdaoui Omar , El Orche Aimen , Cheikh Amine , Laarej Khalid , Karrouchi Khalid , El Karbane Miloud , Bouatia Mustapha
Published: June 2022

This work aims to investigate the potential of mid-infrared spectroscopy (MIR) and chemometrics algorithms for the determination of geographical origin and detection of adulteration of Moroccan saffron samples. First, the determination of the geographical origin of five saffron varieties was analyzed by linear discriminant analysis (PCA-LDA) and partial least squares discriminant analysis (PLS-DA). As a result, the developed models correctly classified saffron samples in a subset of external validation with 100% predictive ability. Next, partial least squares regression (PLS-R) was conducted to estimate the amount of adulterants (safflower) in the saffron samples. A good performance was found with Coefficient of Determination (R2) between 0.97 and 0.99. Compared to other techniques, the main advantage of the proposed methods are non-destructive, fast and sensitive which allows to achieve very precise and accurate results.
PNAIC no contexto de políticas e programas neoliberais
Authors: Marques Machado Thamires , Ferraz Pereira Maria Simone
Published: June 2022

O presente artigo traz um recorte de uma pesquisa de mestrado que investiga permanências e rupturas na política do Pacto Nacional pela alfabetização na Idade Certa (PNAIC), e objetiva analisar as alterações sofridas na sua legislação desde sua criação em 2012 até o ano de 2018, refletindo sobre as permanências e rupturas do PNAIC com um programa inserido no contexto neoliberal de políticas de formação de professores voltados a resolver o histórico problema do analfabetismo no Brasil.
Identifikasi asam laurat pada susu formula bayi 0-6 bulan menggunakan kromatografi gas
Authors: Ernawati Dwi , Aryani Titin
Published: June 2022

Background: Given the importance of the presence of lauric acid and an alternative to breast milk in infants ages 0 months are the formula it will be measured levels of lauric acid in infant formula.

Objective: The object of this study is the formula of infants aged 0-6 months circulating in Yogyakarta. The study was conducted at the Laboratory of Organic Chemistry University of Gadjah Mada in March-June, 2016.

Methods: This study is a quantitative research experiments using Gas Chromatography-Mass Spectroscophy. Lauric fatty acids in infant formula can be obtained by identifying the peaks that appeared on the chromatogram by predicting the group of compounds which appear in the mass spectrometer. While quantitative data levels of omega-3 may be obtained by reading the percent relative peak area as a percent of the component compounds being analyzed.

Result: Mean of the lauric acid content in infant formula for infants ages 0-6 months as much as 10.187%.

Conclusion: There is a lauric acid content in the formula for infants ages 0-6 months
Pengaruh durasi penyimpanan asi perah di thermoelectric cooler terhadap kualitas ASI
Authors: Istikomah  , Nataprawira Heda Melinda , DLH Dzulfikar
Published: June 2022

Background: Breastmilk is a very important need during the growth and development of neonates including nutrition and improve the health. An effort is needed to solve the problem of how working mothers could still breastfeed their babies exclusively. In Indonesia, the working mothers leave their babies averagely for 7–10 hours daily to work or other purpose. The facility to keep the breastmilk in good condition is not always available in every public place, while breastmilk storage in room temperature only survive for 3–4 hours. Therefore, a simple tool that generates cold temperature was designed to replace refrigerator.Objective: To find out the ability of thermoelectric cooler in maintaining the quality of breast milk up to 8 hours.Methods: This is an analytic study using laboratory experimental approach. We analyzed 88 breastmilk samples obtained from 22 breastfeeding mothers in Taman Sari district Bandung. Each breast milk sample was divided into 4 sections to be tested at 0, 4, 8, and 12 hours.Result: All of breast milk samples were safe from the Mesofil aerob, Enterobactericeae, and pathogen bacteria. But, about 52(51.9%) of the samples were contaminated by fungi since 0 hour. Statistical analysis showed no significant difference in breast milk storage in thermoelectric cooler until 8 hours with ρ value=1.000.Conclusion: Thermoelectric cooler maintains breast milk quality in storage duration up to 8 hours.
Faktor karakteristik dan perilaku yang berhubungan dengan on line food ordering (ofo) pada siswa SMA di Jakarta
Authors: Triyanti  , Zahroosita Fatikasari Khansa , Syafiq Ahmad
Published: June 2022

Background: In Indonesia, prevalence of over nutrition (overweight and obesity) among children and adolescent is increasing. This can be influenced by the life style ,that is growing now, is on line food ordering (OFO).Objective: The purpose of the study are to know the description of OFO, and behavior that related with of OFO among student in SMAN 25 Jakarta. Methods: The study design was cross sectional involving 216 students. Frequency OFO is dependent variable and as independent variables are characteristic (sex, level education of parent, and pocket money), and behavior (frequency of fast food, frequency SSB, and screen time). The study methods used non-probability sampling with the sampling technique was incidental sampling. Students filled out questionnaire and submitted it by on line.Results: The results showed 38% of student used OFO with frequency of 2 times a week. Mostly students choose fast food as a menu and 26,4% students choose Sugar-Sweetened Beverages (SSB). Results of bivariate analysis showed there was relationship between level education of parent, pocket money, frequency of fast food, frequency of SSB, screen time with frequency of OFO.Conclusion: Level education of parent, pocket money, frequency of fast food, frequency of SSB, screen time with frequency of OFO related with frequency of OFO.
Dukungan orang tua berhubungan dengan tingkat kemampuan perawatan diri anak tunagrahita
Authors: Hartiningsih Sri Nur , Oktavianto Eka , Nurhayati Pipin
Published: June 2022

Background: a child with mental retardation is one of the children who is born with a mental intellectual disability so that he has difficulty doing academic tasks, establishing communication, and having social relations but can be trained to be independent. To be independent in terms of self care requires support from parents.Objective: to determine the relationship between parenteral support and the level of self care independence of mentally retarded children at the Pembina Special School of Yogyakarta. Methods: quantitave coreelation study with cross sectional approach. The population in this study were all parents, both fathers and mothers who had mentally retarded children at elementary school level in Negeri Pembina Special School of Yogyakarta, totaling 82 people. The sample in this study wa 82 respondents with the sampling technique using total sampling. The Hypothesis testing teachnique uses the kendall tau test. Results: The results showed that there were 57 respondents (69,5%) in adequate category of parental support, and 64 respondents (78,0%) who were independent in self-care for mentally retarded children. From the results of the Kendal tau test, the result obstained p value = 0,020 with a P value alpha = 0,05, then the P value <P alpha Value (0,020< 0,05) so that parental support has a relationship to the level of self-care independence of mentally retarded children. Conclusion: There is relationship between parental support and the level of self-care independence of mentally retarded children at the Pembina Special School of Yogyakarta.
A literature review: Security Aspects in the Implementation of Electronic Medical Records in Hospitals
Authors: Asgiani Piping , Suryawati Chriswardani , Agushybana Farid
Published: June 2022

Backgrounds: Electronic Medical Records have complete and integrated patient health data, and are up to date because RME combines clinical and genomic data, this poses a great risk to data disclosure The priority of privacy is data security (security) so that data will not leak to other parties. That way cyber attacks can be suppressed by increasing cybersecurity, namely conducting regular evaluation and testing of security levels.Objectives: To determine the security technique that maintains privacy of electronic medical records.Methods: This type of research uses a literature review methodResults: Data security techniques are determined from each type of health service. Data security techniques that can be applied are cryptographic methods, firewalls, access control, and other security techniques. This method has proven to be a very promising and successful technique for safeguarding the privacy and security of RMEConclusion: Patient medical records or medical records are very private and sensitive because they store all data about complaints, diagnoses, disease histories, actions, and treatments about patients, so the information contained therein must be kept confidential. As well as the hospital as a medical record manager is required to apply for patient privacy data security techniques.
Demam berdarah dengue di Kota Bima Nusa Tenggara Barat Indonesia
Authors: Solikhah  , Suwarno  , Permatasari Puput Septian
Published: June 2022

Background: Dengue hemorrahagic fever (DHF) remains public health problem in some areas in Indonesia. As a tropical country, supported by heavy rainfall subsequently caused extraordinary events dengue every year. The low level of knowledge, attitudes and behavior of the Indonesian regarding how to prevent and manage dengue has become a trigger for outbreaks in several parts of Indonesia. Objective: This study aimed to describe the incidence of dengue fever in the Bima city, East Nusa Tenggara Indonesia in 2020. Methods: This study used mix-method approach. Quantitative data were obtained from secondary data on dengue cases from January to July 2020 and in-depth interviews with the managers of the disease surveillance program at the Bima City Health Office. Results: The results of this study showed that the increase in the number of dengue cases from 2019 was 144 cases. While in 2020 the increase in dengue cases occurred in the Jatibaru Puskesmas work area in March 2020 as many as 246 cases. The majority of DHF sufferers are female and aged 5-9 years. Conclusion: Cross-program cooperation in health promotion efforts in the City of Bima needs to be increased to motivate the community to always carry out Clean and Healthy Living Behaviors (as well-known PHBS).
Analisa pertumbuhan balita berdasarkan berat badan, tinggi badan dan umur di posyandu
Authors: Palupi Fitria Hayu , Remedina Gipfel
Published: June 2022

Background: Assessment of body weight based on age according to WHO with NCHS standards is using percentiles, while weight assessment based on age according to WHO with NCHS standards is using percentiles. Height measurements were used to assess nutritional improvement status. assessment in this way is very easy to do to assess growth disorders. Nutrition problems in toddlers can be monitored during posyandu activities, so that nutritional disorders in toddlers can be immediately handled properly.Objective: The research design used was a cross sectional design, with a total sample of 99 children under five at the Posyandu in Kragilan Village.Methods: Data analysis used univariate analysis test with distribution and percentage results and used bivariate analysis using chi square test.Results: From the analysis with thetest chi square on BW / U, it was found that the value of P = 0.000 (<0.05) with the OR value at BW / U was 7.500 with a lower value of 1.768 and an upper value of 124.468, while the results of the analysis using thetest chi square on TB / U obtained a value P = 0.000 (<0.05) with the OR value at TB / U is 9,556 with a lower value of 1,198 and an upper value of 76,240.Conclusion: protein energy adequacy has a significant relationship on the indicator of body weight according to age and protein energy adequacy has a significant relationship on the indicator height according to age.