bluuebunny/crossref_metadata_2025 huggingface dataset:
A Multi-Group Structural Equation Modeling For Assessing Behavioral Intention of Using Mobile Cloud Computing-The Case of Jordanian Universities During The Covid19 Pandemic
Authors: Matar Nasim , Al-Malahmeh Tirad , Sowan Bilal , Al-Jaghoub Saheer , Matar Wasef
Published: February 2022

The adoption of new technologies in Jordanian Universities related to cloud services, shows differences in practices between faculty and staff members. Resistance to adoption may accrue by faculty and staff members who are accustomed and favoring old practices. A questionnaire was developed based on the Unified Theory of Acceptance and Use of Technology (UTAUT) model to identify factors that affect behavioral intentions that lead to the use of mobile cloud computing during the covid-19 pandemic, taking into consideration Work-type as the mediating factor. Five Jordanian Universities participated in this study, with a total response of 153 faculty and staff members. The conceptual proposed model was tested to ensure the fitness of the structural model for providing correct estimations. The collected sample was subjected to confirmatory factor analysis to ensure construct, convergent and discriminant validity. The results came positive in terms of composite reliability as they were above 0.70, for Average Variance Extracted (AVE) it came more than 0.05and Cronbach alpha exceeded 0.70. The results revealed the fitness of the proposed model to measure differences in behavioral intentions towards adopting mobile cloud services between faculty members and employees. Moreover, the results showed that work type had some interesting moderating impact on the tested relationships. Moreover, the results showed that there is a high Behavioral Intention (BI) between faculty and staff to use mobile cloud services and solutions within their workplace. In addition, the results showed some inequalities of the behavioral intention toward the adoption of mobile cloud services in Jordanian Universities between the two groups. These results call the university administration to clarify these factors for user groups to obtain a better judgment on investment and future practices for using new technologies.
Page Header OPEN JOURNAL SYSTEMS Journal Help USER Username	catapan-anderson Password	•••••••• Remember me NOTIFICATIONS View Subscribe LANGUAGE Select Language English JOURNAL CONTENT Search Search Scope All Browse By Issue By Author By Title Other Journals FONT SIZE HOME ABOUT LOGIN REGISTER SEARCH CURRENT ARCHIVES ANNOUNCEMENTS EBOOK PUBLISHER ON LINE CONGRESS Home > Vol 7, No 5 (2021) > Pinto MIXTURE DESIGN FOR SELF-COMPACTING CONCRETE USING A VIRTUAL PARTICLE PACKING METHOD
Authors: Pinto Fernando Batista , Martins Maria Auxiliadora de Barros , Werdine Demarcus , dos Santos Valquíria Claret , Gonçalves Paulo Cesar , Barros Regina Mambeli , Mello Mirian de Lourdes Mota
Published: February 2022

Self-compacting concrete is still little used in Brazil and in the world. This is due to the lack of studies on the subject and the difficulty in obtaining an ideal mixture proportion. The performance of studies in this area is of great importance to increase knowledge and increase the visibility of this concrete in the market. In this context, this article presents a contribution to self-compacting concrete mixture design using the virtual packing aggregates method. EMMA software has been used. Four SCC mixtures were analyzed in which the M1 mixture composed of 100% natural sand. Mixtures M2, M3 and M4 with partial replacement of fine aggregate by metallic, ceramic and rubber residues respectively. The good results obtained indicate that the methodology presented in this study for SCC mixture design was effective thus avoiding several mixtures steps.
Mix proportioning and performance of a crushed limestone sand-concrete
Authors: Makhloufi Zoubir , Bouziani Tayeb , Bederina Madani , Hadjoudja Mourad
Published: February 2022

Satisfying the ever-growing demand of concrete aggregates poses a problem in many parts of the world due to shortage of natural sand. Moreover, to conserve natural resources and protect civil engineering infrastructures, there is a need to find alternative materials. Crushed stone sand has been identified as a potential substitute material for natural sand in making good quality concrete. The main objective of the present investigation is to determine an adequate mix design method and evaluate engineering properties of crushed limestone sand concrete mixtures in both the fresh and hardened sates. More than thirty concrete mixtures were examined. The results indicate that water demand and cement paste content in crushed sand concrete are generally higher than that used in similar conventional concrete. Good mechanical properties were obtained for concrete using crushed limestone sand as fine aggregates with a superplasticizer. However, a higher than normally used dosage of superplasticizer is required in these concrete mixtures and the optimum dosage of the superplasticizer needs to be determined for each cement and sand content.
Excess paste method to formulate a self-compacting concrete
Authors: Mebrouki Abdelkader , Bendani Karim , Bouhamou Nasreddine , Belas Nadia
Published: February 2022

On the basis of the principle that a concrete is composed of a liquid phase (paste) and a solid phase (aggregates with fixed gravel/sand ratio), the concrete self-compacting properties come necessarily from those of the paste. The present work is the continuity of a first phase of the testing already conducted, which resulted in obtaining an optimal self-compacting cement paste composition. This paste will be used to prepare a self-compacting concrete (SCC), while passing from the scale of the cement paste to that of the concrete, by injecting wet aggregate to the self-compacting paste. The excess paste theory was used to determine the thickness of the paste coating each aggregate with a given diameter of constituting granular skeleton, then generalized for the determination of the quantity of total paste allowing the flow of the concrete by decreasing frictions between the grains of its granular skeleton. This approach was also experimentally validated. The influence of the granular distribution was minimized by the use of the approach based on the determination of the average diameter of the aggregates. This required the determination of a homothetic factor “k” similar for all concretes with different aggregate grading. Formulation of a self-compacting concrete passes initially by the determination of a sufficient quantity of paste allowing its flow without frictions between its aggregates and to balance the mixture by the quantity of water retained by the aggregates. The self-compacting concrete characteristics would come from those of the cement paste which composes it.
The effect of hybrid steel fiber on the properties of fresh and hardened self-compacting concrete
Authors: Haddadou Naima , Chaid Rabah , Ghernouti Youcef , Adjou Naima
Published: February 2022

Self-compacting concrete (SCC) offers several economical and technical benefits, the use of steel fibers extends its possibilities. This study was performed to compare the properties of SCC and fiber reinforced self-compacting concrete (FRSCC) with high volume of mineral addition. Six mixtures were elaborated in this study. The content of the cementitious materials and the water/cementitious materials ratio were kept constant, 500 kg/m3 and 0.34 respectively.The self-compacting mixtures have been prepared with a cement replacement of 30% by weight of marble powder. Two different types of steel fibers were used in combination with different lengths (50 mm and 30 mm), keeping the total fiber content constant at 60 kg/m3. Slump flow time and diameter, sieve stability, and L-Box were performed to assess the fresh properties of the SCC and FRSCC. Compressive strength, splitting tensile strength, flexural strength and ultrasonic pulse velocity were determined for the hardened properties. A marginal improvement in the ultimate strength was observed. The addition of steel fiber enhanced the ductility significantly and the results indicated that high-volume of marble powder can be used to produce FRSCC, even though there is some decrease in the compressive strength because of the fiber geometry which affects the properties of SCC mixtures not only in the fresh state but also in the hardened state.
Strengthening of concrete beams by CFRP: Experimental study and finite element analysis
Authors: Ghernouti Youcef , Rabehi Bahia , Benhamna Ali , Hadj Mostefa Adda
Published: February 2022

This work presents an experimental study on the mechanical behavior of structural concrete reinforced by carbon fiber reinforced polymer (CFRP). The main purpose of this study is to test the applicability of this method of reinforcement in the beams to improve the behavior of concrete: strength and ductility. An experimental characterization of mechanical behavior by tensile test by three point bending is achieved, namely, the reinforcement of the lower part of the beam (15x15x75) cm3 with composite material, Based on the ANSYS simulation, a model was developed to validate the different results obtained experimentally. The experimental results show that the reinforced concrete offered a great improvement in strength and ductility; in effect an influence directly on the failure mode is observed and then read by the value of strength and ultimate deformation. The tensile bending of beams reinforced by CFRP is more than 295% in comparison with that of non-reinforced beams. The gain maximum of ductility is 247%. The experimental results have been compared with the theoretical models, a good correlation was obtained.
Effect of limestone powder as a partial replacement of crushed quarry sand on properties of self-compacting repair mortars
Authors: Benabed Benchaa , Soualhi Hamza , Belaidi Akram Salah Eddine , Azzouz Lakhdar , Kadri El Hadj , Kenai Said
Published: February 2022

Self-compacting repair mortars (SCRM) are particularly desired for the rehabilitation and repair of reinforced concrete structures. The properties of SCRM can be improved by using chemical, mineral, polymer and fiber additives. In limestone quarries, considerable quantities of limestone fine powder are obtained during the process of crushing rock. These fine powders are being collected and their utilization is a big problem from the aspects of disposal, environmental pollution and health hazards. The introduction of limestone powder as cement and sand replacement present interesting possibilities to reduce the cement cost production, CO2 emission and the conservation of natural resources. The effects of limestone powder content in crushed sand on the properties of SCRM are not studied. An experimental study was undertaken to find out the effect of limestone powder content on fresh and hardened properties of SCRM. SCRM mixtures were prepared using crushed sand partially replaced with limestone powder at varying percentages up to 30%. Results indicate that the limestone powder as sand replacement significantly improves the fresh and hardened properties of SCRM with a content ranging from 10 to 15%. The use of limestone powder in repair mortar and concrete application would offer technical, economical and environmental advantages for concrete producers.
Durability of concrete using marble mining waste
Authors: Kore Sudarshan Dattatraya , Vyas Ashok Kumar
Published: February 2022

The aim of the study was to study behavior of concrete containing marble mining waste under aggressive environment. Waste from marble mining and processing industries was used in concrete as coarse aggregate in combination with conventional coarse aggregate. The particle packing density approach was followed to design the concrete mix and 75% conventional coarse aggregate was replaced by aggregate obtained by crushing waste from marble mining waste. The water-cement ratio was fixed 0.45 for all the mixes. Properties of concrete under aggressive environment such as chloride ion penetration, resistance to sulphates were evaluated. The test results revealed that, resistance to chloride ion penetration and sulphate attack increased as compared to control concrete. Overall the results supported by microstructure analysis indicate that there is no significant adverse effect on the use of marble waste as a coarse aggregate on the durability properties of concrete. The results of fire study reveal that, concrete with marble waste performs better than control concrete up to a temperature of 800 ºC.
Impact of electric arc furnace slag on geopolymer composites exposed to sulphate solution
Authors: Khater Hisham Mustafa Mohamed
Published: February 2022

Effect of sulfate solution on the geopolymer formed from electric arc furnace slag (EAF) along with water cooled slag and cement kiln dust was studied. Activation was carried up on usage of 25% CKD as it bears high alkali content that can initiate and propagate the polymerization process. The formed geopolymer products were immersed in 5% MgSO4 solution to determine the stability up on sulfate attack. FTIR, XRD, SEM, compressive strength and water absorption were utilized to examine the resulted geopolymer product under sulfate attack. Results showed that, the compressive strength of geopolymer specimens increase with EAF slag up to 50% then decrease with further slag increase, possessing stability up 12 months and giving an increased compressive strength than the control mix that has not EAFS by 6.53%, 14.72%, 47.44% and -4.89 % after immersing ages of 3 months and 2.26, 14.26, 43.97 and 19.98 % after immersing age of 12 months for replacement by 10, 25, 50 and 75% of EAFS, respectively. Data elucidated a good stability and resistance of mix containing slag substitution by 50 % EAF and 25 % GGBFS and results in further enhancement in both mechanical and microstructural characteristics than the non-immersed samples (28days).
Biocomposite Bridge
Authors: Malschaert David
Published: February 2022

Biocomposite materials are becoming more interesting to use in infrastructural projects due to their biodegradable, renewable, recyclable and sustainable properties. With a relatively low density, it is an interesting building material regarding a bridge deck. When designing with biocomposite the following factors are important to consider: material design, fibre treatment, coating and manufacturing technique. A PLA-Bamboo biocomposite was applied to an existing design of a bridge deck made out of synthetic composite. Due to its randomly oriented fibres and its equally designed lamellae, the cross section was considered homogeneous and the stresses were calculated according to ‘Hooke’s law’. The unity checks were performed according to ‘CUR 96’ with an own devised material factor of 5,69. This factor was calculated in this study for biocomposites with untreated fibres. The calculations showed that the original material (synthetic composite) was not directly replaceable by the PLA-Bamboo biocomposite. An alternative design of the deck (deck height of 1 meter and doubled thicknesses of the skins and web plates, 40- and 10 mm) showed better results. This design complied for the unity checks for strength.
Recycling of rubber waste in sand concrete
Authors: Guendouz Mohamed , Boukhelkhal Djamila
Published: February 2022

The large development in the consumption of rubber is observed in the recent years, which leads to an increase of the production of rubber related waste. Rubbers are not hazardous waste, but they constitute a hazard for both environment and health, in case of fire in storage sites. So, recycling appears as one of the best solutions for disposing of rubber waste.This paper presents an experimental investigation dealing with the valorisation of rubber waste, specifically rubber obtained from old shoes sole waste. The waste rubbers are used form (0/5 mm) to mixes as addition at percentage (10%, 20%, 30% and 40%) in sand concrete. The physical (workability, bulk density), mechanical (compressive and flexural strength) and thermal properties are studied and analysed.The results indicate that the incorporation of rubber waste particles in sand concrete contributes to increase the workability and reduce the bulk density of all studied sand concrete. The obtained results show that mechanical performance (compressive and flexural strength) decreases when the rubber content increases. Nevertheless, the presence of rubber aggregate leads to a significant reduction in thermal conductivity, which improves the thermal insulation performances of sand concrete. This study insures that reusing of recycled rubber waste in sand concrete gives a positive approach to reduce the cost of materials and solve some environmental problems.
Study of crushing of grains of limestone under the effect of cyclic loading with the fractal dimension
Authors: Bouzeboudja Aldjia , Melbouci Bachir , Bouzeboudja Ouardia
Published: February 2022

The grains can be of very diverse nature (size, shape, mineralogy, etc), indeed even if each grain is a fairly simple object, the set of grains is a very complex system in which the geometrical and physical properties of the grains, their forces and their orientations play a crucial role in their mechanical behavior. The measurement of their shape in soil mechanics has historically required the use of standards and diagrams to which the different grains can be compared. However, these methods are approaches and remain insufficient and incomplete for the actual measurement of their form and the understanding of their behavior remains a task far from being completed.

This work is in this context and proposes to analyze the shape and size of the grains with the fractal theory using the Box Counting method. It also makes it possible to study their influence on the crushing of the grains of the calcareous material under the effect of the cyclic loading-unloading during the oedometer test. The obtained results show that the variation of the fractal dimension, corresponding to the crushing effect of the grains, is strongly influenced by their shape, their size, their particle size distribution and the variation in the number of loading-unloading cycles.
Impacts of Diatomaceous Earth on the Properties of Cement Pastes
Authors: Hasanzadeh Bashir , Sun ZhiHui
Published: February 2022

Fresh properties of concrete are closely related to operation and construction, such as transporting, placing, compacting, etc.; and they also have a great impact on the lifetime performance of concrete. In this paper, the influence of Diatomaceous Earth (DE) as a natural pozzolan on fresh properties of cement pastes has been investigated. Cement pastes with different water-to-binder ratios (w/b=0.4, 0.5 and 0.6) and 0%, 2%, 6% and 10% replacement levels of DE by weight of cement were studied. Viscosity, yield stress, flow diameter, bleeding, setting times, and the heat evolution of all cement pastes were measured. Results showed that DE has a significant impact on fresh properties of cement pastes. Increasing DE content in cement pastes resulted in higher viscosity and lower flow diameters. Pastes with higher DE replacement levels showed lower bleeding rate and shorter initial and final setting times. The isothermal calorimetry test also showed that, as a pozzolanic material, DE lowered the heat of hydration, however, it advanced the appearance of the heat evolution peaks which was in agreement with the results from setting time tests.
Analysis of Static Bending of Plates FGM Using Refined High Order Shear Deformation Theory
Authors: Merdaci S. , Boutaleb S. , Hellal H. , Benyoucef S.
Published: February 2022

This work deals with the analysis of the mechanical bending behavior of a rectangular plate simply supported on four sides (FGM), subjected to transverse static loading. The high order theory is used in this work, The developed models are variably consistent, have a strong similarity with the classical plate theory in many aspects, do not require correction to the shear factor, and give rise to variations transverse shear stresses such as transverse shear parabolically varies across the shear thickness and satisfies surface conditions without stresses. Equilibrium equations are obtained by applying the principle of virtual works. The mathematical expressions of the arrow, the stresses are obtained using Navies approach to solve the system of equilibrium equations. The influence of mechanical loading and the change of the parameter of the material on mechanical behavior of the plate P-FGM are represented by a numerical example.
Effect of Street Morphology on Buildings’ Thermal Storage in a Hot and Arid Climate: Case Study of Biskra (Algeria)
Authors: Benamor Kaoutar , Benabbas Moussadek
Published: February 2022

This work is an experimental study focusing on the relationship between street morphology and thermal storage in buildings. The first aim of this study is to reduce air conditioning usage in hot and arid areas, taking as example Biskra city (Algeria), during the long summer period (5 months), by reducing thermal storage. This leads to the reduction of carbon emissions to a level higher than the individual construction level in order to design a sustainable city, using measuring instruments (kimo HD 100 and Cason CA 380), we measured outdoor air temperature, wall temperature, relative humidity and wind speed on three street morphologies ; the (canyon, dihedral and open streets). These streets are different in terms of morphological indicators such as Sky View Factor (SVF) and albedo materials (a). We also applied mathematical equations across the thermal balance to calculate thermal storage. Our second goal was to identify the morphological indicators of the streets affecting the thermal storage of buildings. In this context, the obtained results showed that SVF was the most influential parameter on the heat storage.
Stabilization of compressed earth block clayey materials from Adrar (Algeria) by lime and crushed sand
Authors: Abbou Mohammed , Semcha Abdelaziz , Kazi-Aoual Fatiha
Published: February 2022

The objective of this article is to determine the physical and mechanical properties of stabilized compressed earth bricks (SCEB), made from a mixture of clay with crushed sand, and stabilized by lime. In this study, we first examine the identifying properties of raw materials. Then an experimental study was conducted with cylindrical test pieces of a mixture of clay and crushed sand prepared by the addition of lime and statically compaction, to study the physical and mechanical characteristics of the mixture. The experimental study shows that for use as a building material, the clay mixture with 30% crushed sand and stabilized with 4% and 6% lime is the optimum mixture for as a stabilized compressed earth bricks.
Properties of Sandcrete Block Produced with Coconut Husk as Partial Replacement of Sand
Authors: Robert Ubong , Etuk Sunday , Agbasi Okechukwu , EKong Sylvester
Published: February 2022

Sandcrete block is the most popular building material in construction industry. However, with the high and increasing cost of building materials experienced nowadays, it has been difficult to achieve affordable housing especially in developing countries. Also, significant dredging of sand for block production and the large amount of coconut husk thrown away as waste have increased the level of concern due to their adverse effect on environment. This work, therefore, sought to produce solid core sandcrete blocks in which sand component is partially replaced with coconut husk and investigate the suitability of using such blocks for building designs. The block samples produced using untreated and also treated coconut husks at various levels of sand replacement were subjected to bulk density, water absorption and compressive strength tests at 7 days and 28 days of curing. It was found that sand replacement with 20% of untreated coconut husk or 30% of treated coconut husk could yield a solid core sandcrete block suitable for non-load bearing walls of satisfactory performance. Since coconut husk is cheaply available, sustainable, and recyclable, utilising such promising material in this case can enhance production of cost-effective and optimally performing sandcrete blocks for building purposes. This will in turn help to boost the development of housing, minimise loss of agricultural lands, and reduce environmental pollution level, and so on.
Comparative design procedures of stone columns for liquefaction stabilization
Authors: Messafer Tahar , Hassak Mohamed Oussama , Abzar Adem
Published: February 2022

Soil liquefaction is one of the most important and complex phenomena of soil dynamics. It is a loss of résistance of loose granular soils under a seismic shock.

The aim of this work is to study the improvement made on a liquefiable soil using a stone column solution by several methods namely observational, static and dynamic solutions. The site used for this application is located in a terminal port container in Algiers. The analysis was carried out using the test results of standard penetration and cone penetrometer tests completed during a site investigation.

A comparative study between the methods was carried out to determine the most suitable method. The results of the 3 methods showed that the sizing by taking into account the earthquake, the mesh of stone columns is denser. It was deduced that it is important to analyze by the dynamic method in seismic zones and by static or observational techniques in areas of no or low risk of liquefaction. Recommendation for further research was put forward to develop new tools in order to improve current design methods.
Study of the mechanical behavior of a lightweight wood concrete
Authors: Bouabdallah Moulaï Abdellah
Published: February 2022

Today, the development of building materials based on toxic or non-toxic industrial waste is a topical issue for the productive structures in industrialized countries. In this article, non-toxic wood waste (wood chips) is used to improve the characteristics of ordinary concrete (lightness, thermal insulation, acoustic absorption, rigidity under stresses, etc.) for the purpose of eventually developing light wood concrete. The present experimental study aims at conducting a comparative behavioral analysis between concretes based on non-toxic wood waste of natural origin on the one hand, and ordinary concrete on the other.In order to achieve this goal, a series of test pieces were made, with five different formulations. Four of them are lightweight wood-concretes obtained by the substitution of a volume of aggregates; the fifth formulation is ordinary concrete. A number of tests were carried out at the Construction Technical Control Laboratory at different ages, i.e. 7, 14, 21 and 28 days. Interesting results were obtained with respect to the evolution of the mechanical characteristics of light wood-concrete at early age. Some of these features, such as the long-term compressive strength of concrete, are essential parameters in civil engineering.
A case study on deterioration assessment and rehabilitation of fire damaged reinforced concrete structure
Authors: P N Ojha , N S Adarsh Kumar , Singh Brijesh , Singh Abhishek , Patel Vikas
Published: February 2022

Fire is one of the most severe hazards that building structures may experience during their lifetime. A fire spread to the whole structure can cause unexpected damages to the structural elements. Mainly, the building type is crucially important for the type and the level of damage to the building because of the fire. Post fire investigation of damaged structure is required to determine the extent of damage to concrete elements and to work out system of effective repair/rehabilitation measures to maintain the structural integrity of fire effected structural components. The paper covers in brief the strength and durability study on fire damaged building in Delhi, India. The study reports the extent of fire damage. Optical Microscopy (OM), X-Ray Diffraction (XRD) and Deferential Thermal Analysis (DTA) studies were carried out on the sample concrete cores extracted from different identified portions of the fire exposed concrete are highlighted in this paper. Extent of damage occurred in the Reinforced Cement Concrete (RCC) i.e. RCC columns/beams/slabs are described based on the detailed evaluation by various Non-Destructive Evaluation Techniques covering Cover study & Ultrasonic Pulse Velocity (UPV) testing. Repair and remedial measures required for restoration and strengthening of the fire affected RCC columns/beams/slabs using indigenously available repair materials and techniques are also highlighted in this paper.
Development of Guinea Corn Husk-Cow Hair Hybrid Fibre Reinforced Cement Composite
Authors: Alomaja Jonathan , Jimoh Alao , Wilson Uwemedimo , Joseph Oluwatoyin , Akinleye Monsuru , Adeleke Joseph
Published: February 2022

This research work presents the application of guinea corn husk (GCH) and cow hair (CH) fibres as reinforcement in cement composite. The influence of the hybrid fibre volume on the flexural performance of the composite has been studied experimentally. The mechanical (flexural strength) and physical (density, water absorptivity, moisture content) characteristics of the GCH-CH hybrid fibre reinforced composite were evaluated. The highest flexural strength was 22.37MPa, exhibited by the composite reinforced with 15% (12.5% GCH & 2.5% CH) hybrid fibre. The density of the GCH-CH hybrid composite ranged from 1019 to 1963 kg/m3. The water absorptivity varied from 22.59 to 38.16% and the moisture content ranged from 3.32 to 11.28%. These limits are within the range in standard therefore, the performance of the composite satisfies the requirements of BS EN 12467 standard for ceiling board.
Comparison of Intensive Care Unit Nurses’ and Family Members’ Priorities of Patient and Family-centered Care in Ghana
Authors: Mohammed Shaibu , Tak Sunghee H.
Published: February 2022

Purpose : Life-threatening illnesses represent a crisis for individual patients and their families. Little has been made to understand the priorities or perspectives in developing a care plan. This results in poor outcomes, and patients and families return home without being satisfied with the care provided. This study aimed to address nurses’ and families’ care priorities on patient and family-centered care principles and compare those priorities.Methods : A quantitative comparative descriptive research was conducted. The data were part of a study that was carried out to elicit and compare nurses’ and families’ perceptions of complying with patient and family-centered care (PFCC) principles in intensive care units (ICU) in Ghana. The respondents were ICU nurses (n=123) and family members of hospitalized patients in the ICU (n=111). The tool for the study was a “modernized version of a hospital self-assessment inventory on PFCC,” and data analyses were performed using SPSS version 20.0.Results : Nurses and families differed significantly in their priorities of care based on the principles of PFCC. The means and p-values were significantly different for the definition, pattern of care and access to information/education, and the overall total scores of the patient and family-centered care principles (PFCCP)Conclusion : To render care that aligns with the care priority of families and patients in the ICU, nurses must plan care in consultation with their families.
Experience of the Collaborative Practice among Health Professionals in Korea
Authors: Lee Mi Ji , Lee Yun Mi , Shin So Young , Cho Jeong Hyun
Published: February 2022

Purpose : This study aimed to understand and describe the experiences of collaborative practice among health professionals in Korea.Methods : Data were collected through individual in-depth interviews conducted from January to March 2021 with 10 health professionals in Korea. All interviews were audiotaped and transcribed verbatim. The transcribed data then underwent qualitative content analysis.Results : Through content analysis, 10 categories and 3 themes were formed. Three themes, “working based on knowledge,” “having difficulty in building collaborative relationships,” and “playing complementary roles” emerged.Conclusion : The limitation is that the study participants are 10 health professionals in Korea working at healthcare institutions. However, this study is of great significance in that it provided basic data for preparing measures for collaborative practice among health professionals in Korea.
PENGARUH LEVERAGE, EARNING POWER, DAN KEPEMILIKAN MANAJERIAL TERHADAP MANAJEMEN LABA
Authors: Loen, SE., M.Si. Mishelei
Published: February 2022

The purpose of the reasearch to find out and analyze the effect of Leverage, Earning Power, and Managerial Ownership of Earnings Management, Study on Companies Conducting Right Issues on the Indonesia Stock Exchange for the period 2016-2020. The analytical method used in this study namely by using descriptive statistical methods and multiple regression then using classical assumption and hypothesis testing using T test, F test and R² test, sampling using purposive sampling method with a population of 55 from the population obtained 18 samples.  The results showed that partially or according to the results of the T test, that Leverage, Earning Power, and Managerial Ownership have a significant effect on Study Management in Companies Conducting Right Issues on the Indonesia Stock Exchange for the 2016-2020 period.

 
STABILISASI TANAH LEMPUNG MENGGUNAKAN LIMBAH KARBIT DAN SILICA FUME TERHADAP SUBGRADE PERKERASAN JALAN
Authors: Furqan Muhammad , Tri Utomo, Ph.D Prof. Ir. Suryo Hapsoro , Suparma, M.Sc., Ph.D. Ir. Latif Budi
Published: February 2022

Tanah dasar (subgrade) adalah bagian bawah lapisan perkerasan yang akan menerima beban sampai batas-batas yang mampu dipikulnya. Kekuatan struktur perkerasan sangat bergantung pada kondisi kuat dukung tanah. Kuat dukung tanah yang rendah dapat dilakukan berbagai macam stabilisasi salah satunya dengan bahan tambah. Pada penelitian ini dilakukan penambahan bahan kimia berupa limbah karbit dan silica fume sebagai bahan stabilitas perkerasan. Tujuan penelitian ini dilakukan untuk menganalisis karakteristik, pengaruh terhadap nilai CBR dan swelling, serta untuk mendapat kadar terbaik dari campuran limbah karbit dan silica fume sebagai lapisan tanah dasar untuk konstruksi jalan. Variasi campuran yang dipakai yaitu 3%,7%,11% dan 15%. Hasilnya untuk nilai CBR setelah diperam selama 7 hari pada kondisi unsoaked didapatkan hasil berturut-turut sebesar 19,33%, 23,81%, 24,24%, dan 36,15%. Pada CBR soaked didapatkan hasil sebesar 6,17%,10,42%,21,69% dan 33,17%. Untuk nilai swelling sebesar 2,81%,2%,0,17% dan 0%. Maka dari itu, untuk kondisi limbah terbaik pada 15% limbah karbit + 8% silica fume dimana perlu dilakukan pemeraman terlebih dahulu agar proses pengikatan antara butiran lebih sempurna.
COVER DAN DAFTAR ISI
Authors: Admin Admin
Published: February 2022

COVER DAN DAFTAR ISI
Implementasi Sistem Pendaftaran dan Edukasi Pencak Silat Budi Asih se-Ciayumajakuning Berbasis Website Dengan Framework Codeigniter (CI)
Authors: Lubis Ghozali Ahmad , Adi Cahyanto Kurnia , Anwar Diky
Published: February 2022

Tertutupnya akan informasi mengenai pencak silat akhirnya membuat pencak silat sebagai warisan budaya bangsa Indonesia hilang tergerus perkembangan jaman dengan adanya teknologi yang semakin modern seperti saat ini. Biasanya pendaftaran pada perguruan pencak silat Budi Asih masih menggunakan cara konvensional, yaitu anggota baru harus memperoleh formulir pendaftaran, mengisi data, dan menyerahkannya ke Guru kolatnya atau Sekretariat. Masalah pendaftaran dan edukasi bisa dilakukan dengan solusi aplikasi pencak silat Budi Asih berbasis website sehingga prosesnya menjadi lebih cepat jika dibandingkan dengan cara konvensional. Hasil dari pengujian yang dilakukan oleh pengguna untuk mencoba aplikasi ini menunjukkan bahwa dapat mempercepat kerja pengurus secretariat dalam mengolah data secara terkomputerisas
Backup Database Dengan Multi Master Replikasi Pada Kluster Server
Authors: Heryanto Ahmad , Hartati Yuyun
Published: February 2022

Sistem database yang selalu tersedia merupakan kebutuhan mutlak pada insfrastruktur setiap organisasi. Data yang tersimpan harus terus tersedia pada saat dibutuhkan. Banyak hambatan dan gangguan dalam menyimpan data dalam suatu database. Hambatan dan gangguan tersebut tersebut bisa diakibatkan dari berbagai macam hal, seperti maintenance, kerusakan database, kerusakan media, data corruption dan bencana yang tak terduga (bencana alam). Oleh karena itu, diperlukan suatu Teknik replikasi yang baik untuk menjaga keutuhan data. Teknik replikasi Multi Master (Master-Master) telah diimplementasikan pada penelitian ini. Hasil penelitian ini, untuk melakukan replikasi 3 node server diperlukan waktu dengan rentang 0,1-0,2 detik
Sistem Prediksi Persediaan Stok Darah Dengan Metode Least Square Pada Unit Transfusi Darah Studi Kasus PMI Kota Cirebon
Authors: Hatta Muhammad , Fauziah Fitri Alfi
Published: February 2022

Unit Transfusi darah (UTD) sebagai penyedia pasokan darah diperlukan untuk memenuhi permintaan darah, namun dalam kenyataannya, stok darah tidak selalu memenuhi permintaan darah. Jumlah stok golongan darah di UTD tergantung pada donor darah yang secara sukarela mendonorkan darah. Sel darah merah hanya memiliki rentang hidup 35 hari sejak mereka disumbangkan, jika mereka telah melewati waktu itu darah tidak dapat digunakan untuk transfusi. Faktor atau parameter yang mempengaruhi jumlah produk darah menuntut, yaitu lingkungan, wabah penyakit dan perbedaan daya tahan tubuh masing-masing golongan darah. Selain itu, jenis-jenis produk darah juga memiliki sejumlah permintaan berbeda tergantung pada tingkat kebutuhan darah untuk kesehatan. Sehingga perlu sebuah sistem prediksi persediaan stok obat untuk periode berikutnya,  dalam prediksi menggunakan adalah metode Least Square. Hasil dari penelitian ini adalah sistem informasi prediksi kebutuhan stok daraah untuk periode berikunya sehingga memudahkan petugas dalam mengelola data-data serta data laporan permintaan darah dan stok darah per periode.
Penerapan Metode Simple Additive Weighting Untuk Menentukan Penggunaan Dana Bantuan Operasional Sekolah
Authors: Irawan Puja , Sokibi Petrus , Susanto Ivan
Published: February 2022

Dana Bantuan Operasional Sekolah (BOS) merupakan salah satu bentuk upaya pemerintah untuk mendukung pendidikan di Indoensia. Dana BOS dapat diterima oleh sekolah dengan mengikuti persyaratan yang berlaku. Penentuan penggunaan dana BOS umunya dilakukan dengan hasil suara terbanyak yang didapatkan ketika rapat penggunaan dana BOS. Hal tersebut dianggap kurang efektif karena tidak jelas keprioritasaanya, sehingga untuk mendapatkan hasil keputusan yang lebih efektif solusinya adalah dengan menggunakaan sebuah sistem untuk menunjang keputusan.Sistem Pendukung Keputusan untuk menentukan penggunaan dana BOS dilakukan dengan menggunakan metode Simple Additive Weighting (SAW). Sistem ini berbasis web yang dibuat dengan memanfaatkan seperangkat komputer yaitu laptop dan menggunakan bahasa pemrograman PHP (Hypertext Preprocessor) serta menggunakan database MySQL. Sistem ini dapat digunakan untuk melakukan pengajuan dan menghitung data pengajuan. Dari hasil perhitungan tersebut Kepala Sekolah dapat memilih pengajuan yang akan disetujui dengan mempertimbangkan hasil perhitungan metode SAW. Sistem ini menghasilkan informasi berupa laporan penggunaan dana BOS yang dapat dilihat oleh guru dan orang tua siswa. Kelebihan dari sistem ini adalah informasi penggunaan dana BOS disertai dengan tingkat keprioritasannya karena sistem ini menerapkan metode SAW untuk menunjang keputusan penentuan penggunaan dana BOS, namun laporan yang dihasilkan hanya sebagai informasi penggunaan dana BOS bukan untuk laporan kepada kementrian pendidikan dan kebudayaan.

 

Kata Kunci: Sistem Pendukung Keputusan, Bantuan Operasional Sekolah, Web.
Rancang Bangun Aplikasi Perbaikan OS Komputer dengan Metode Image Cloning Pada PT. Midi Utama Indonesia, tbk Makassar
Authors: Arifin Rohayati
Published: February 2022

Penelitian ini bertujuan untuk membuat suatu aplikasi perbaikan OS komputer yang mudah dan efektif. Metode yang digunakan adalah metode image cloning yang digabungkan dengan metode backup sehingga di dapatkan suatu aplikasi yang dapat digunakan oleh karyawan toko untuk memperbaiki OS komputer yang rusak, sehingga tim IT alfamidi tidak perlu ke lokasi untuk meng-install ulang OS komputer toko yang rusak. Berdasarkan hasil pengujian menggunakan metode black box dan white box, secara fungsional maka tingkat keefektifan dan kemudahan dari persepsi tim IT dan karyawan toko yang diukur melalui pembagian kuesioner mencapai 98 % (sangat baik). Berdasarkan pengujian keefektifan yang dilakukan, aplikasi ini sangat efektif digunakan, karna hanya membutuhkan waktu 1 jam 19 menit untuk memperbaiki OS komputer yang rusak sedangkan dengan cara manual membutuhkan waktu 5 jam 38 menit. Berdasarkan pengujian efisiensi aplikasi ini sangat efisien karena tidak memerlukan biaya sedangkan dengan menggunakan cara manual membutuhkan biaya
Evaluation of behavior components in the elevated plus maze after the action of external and internal factors
Authors: Kozlova Yu.V. , Demchenko O.M. , Kozlov S.V. , Rodyns'kyj O.G. , Tryasak N.S.
Published: February 2022

To optimize the treatment of diseases which are accompanied by disorders of the psycho-emotional sphere, it is necessary to identify differences and expose the pathogenesis of these changes appearance depending on the primary pathology. During the study, changes in the components of behavior in the elevated plus maze were studied in rats with a developed explosion-induced neurotrauma (EINT), hyper- and hypothyroidism. The experiment conduc­ted on 33 Wistar rats, of which 12 sexually mature rats were divided into control and expe­rimental (with an established EINT) group, 21 young rats were divided into 3 groups – with hyperthyroidism, hypothyroidism and a control group. All animals were kept in standard conditions of the vivarium of the DSMU, the studies were carried out in accordance with the requirements of bioethics. Analysis of the results showed that under the action of various pathological factors, different behavioral profiles are formed, which indicate the development of a trivial state during stress-like reactions after neurotrauma or with an altered hormonal state. The behavioral profile of rats after reproduction of the EINT in comparison with the control group indicates the development of stress-like conditions (statistically significant (p≤0.05) increase in upright stands by 62%, an increase in the number of bowel movements by 50%. Hyperthyroidism is characterized by sympathetic nervous system activation, as evidenced by a significant (p≤0.05) increase in both the number of measures in the open sleeves by 70% and a significant (p≤0.05) increase in the time spent in light sleeves by 51%. In hypothyroidism, there is a suppression of the emotional component of the rats behavior, as evidenced by a significant (p≤0.05) reduction of measures by 63% and time spent in light sleeves by 86%, grooming duration by 71%, hanging from the edges of open sleeves by 80% and the number of bolus defecation by 100%.

Keywords: thyroid gland, antigen, staphylococcal toxoid, mast cells, experiment, rats.
Sobre a necessidade da moral na democracia
Authors: Machado Luan Fernandes
Published: February 2022

O propósito deste artigo consiste em sustentar a necessidade da moralidade formal na democracia. Para tanto, a moralidade formal é apresentada como uma consequência necessária caso queiramos uma democracia plural. Assim, o artigo elabora uma associação entre as três endemias da democracia liberal e o modelo agregativo de democracia, cujo pano de fundo é profundamente relativista, propondo, então, a adoção do modelo deliberativo. Em seguida, é apresentada a teoria agonística, segundo a qual o modelo deliberativo conduz ao ressurgimento da extrema direita ao sufocar a categoria ontológica do político. Contextualizando a discussão, o artigo desfaz a associação entre o ressurgimento da extrema direita e o deliberacionismo. A conclusão reforça a importância de se adotar a perspectiva do participante para analisar a democracia, incluindo-se aí o pano de fundo moral próprio deste regime, caso o queiramos plural.
A democratização da gestão educacional e escolar: um olhar nos sistemas municipais de ensino
Authors: Do Nascimento Moraes Marília , Gabriel Dalla Corte Marilene
Published: February 2022

Resumo: O texto contempla um mapeamento sobre as produções científicas relacionadas à democratização da gestão educacional e escolar no Brasil, desenvolvidas no período de 2010 a 2019. Objetiva compreender quais são e o que sinalizam as produções científicas que abordam a democratização da gestão educacional e escolar no Brasil, considerando suas contribuições acerca dos mecanismos de criação e fortalecimento dos Sistemas Municipais de Ensino. Trata-se de uma pesquisa de natureza qualitativa, a partir do estado do conhecimento, utilizando-se de um estudo exploratório de produções científicas e referenciais teóricos, bem como de análise bibliométrica. Os resultados indicam que as produções do período de 2010 a 2019, independentemente de suas especificidades, abordam que a gestão democrática ainda caminha a passos lentos para a sua efetivação, porém mencionam a importância dos princípios e mecanismos de democratização da gestão para a necessária e efetiva participação da comunidade intra e extraescolar na implementação de políticas públicas próprias para melhorar a autonomia dos espaços de gestão educacional e escolar.
Palavras-chave: Gestão Democrática. Gestão Educacional e Escolar. Políticas Públicas. Sistemas Municipais de Ensino.
Elementos constituintes da identidade docente de duas professoras experientes dos anos iniciais do ensino fundamental
Authors: Francine Ferreira da Silva Jéssica , Gestoso de Souza Ana Paula , Massako Murakami Tiba Aline
Published: February 2022

Resumo: A aprendizagem da docência percorre a trajetória pessoal, os processos formativos e profissionais dos professores e sofre influência de diferentes aspectos, sendo estes responsáveis pela construção da identidade profissional docente. Por essas reflexões, este estudo procurou responder: quais elementos caracterizam a constituição da identidade docente de duas professoras experientes dos anos iniciais do Ensino Fundamental? Esses elementos podem ter influenciado na escolha e interesse de participarem de um programa de mentoria? De que maneira? Buscou-se identificar elementos e características desse processo, por meio da análise de memoriais de formação, e observar de que maneiras essa constituição influenciou na escolha e no interesse de atuarem em um programa de mentoria. Sob um viés qualitativo, foram analisados o percurso da infância e escolarização, a formação inicial, o início da docência e a trajetória de atuação profissional, com enfoque no início da carreira. Os resultados apontam que a família, o exemplo/modelo de professores, os colegas de trabalho, as experiências de formação continuada, o comprometimento político, o envolvimento em processos reflexivos e o ser resiliente, influenciaram fortemente na construção da identidade docente das professoras. Nesse sentido, observou-se que alguns desses elementos, constituintes de suas identidades docentes, como o apoio recebido por seus pares (iniciantes e experientes) no início da carreira, a busca constante por formação continuada e o comprometimento e engajamento político parecem ter influenciado na escolha dessas professoras de atuarem como mentoras de professores iniciantes. 
Palavras-chave: Desenvolvimento profissional docente. Formação contínua. Memoriais de formação.