bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparison of sand burial-dependent growth responses of two Tragopogon species from different habitats
Authors: Ievinsh Gederts , Lejniece Kristīne K.
Published: November 2021

Wind-driven sand movement leading to sand burial is an essential environmental factor in coastal sand dunes; therefore, plants native to sand dunes need to possess specific adaptations. The present study aimed to compare responses to variable sand burial intensity of Tragopogon heterospermus, rare plant species native to coastal dunes, and Tragopogon pratensis taxonomically related grassland species. Plants in culture were established from seeds collected in natural habitats, cultivated in an automated greenhouse, and individuals of different age were buried by sand in the different depths. Both plants had basic sand burial tolerance, seen as an elongation of adult plants’ leaf bases under moderate sand burial conditions. However, only dune-adapted T. heterospermus plants exhibited efficient resource allocation from roots to shoots with increased sand accretion intensity. T. heterospermus plants had pronounced age dependence of burial tolerance, with higher sensitivity to sand burial at an earlier stage due to small shoot height and, possibly, certain physiological factors.
Geometric model of microscopic raphide crystals in plant cells
Authors: Özdemir Ali
Published: November 2021

In the present study, we showed that the microscopic structures of some plant crystals have the geometric model and mathematical formulas. Plant crystals are the storage of many mineral acid salts in many plants, such as chloride, phosphate, carbonate, silicate anhydrides and sulfates, formed due to metabolism. The crystals formed take different shapes. The shaping of plant crystals is not a simple structure. They are created in specific shapes and sizes by this biomineralisation process. Seventy-five per cent of flowering plants make one or more kinds of crystals. One of these is called a raphide crystal. Our study determined that the microscopic structures of some raphide crystals show the elongated triangular bipyramid that is a mathematics definition. In geometry, the elongated triangular bipyramid is one of the Johnson solids (J14), convex polyhedra, whose faces are regular polygons. At the same time, it was determined that the crystals show a minimal surface feature. The feature takes an essential place in geometry. The minimal surface feature provides the advantages of resistance and minimal space occupation to the crystals
FPGA Implementation of Floating-Point Significand Multiplier
Authors: Didenko Artem , Zeleneva Irina
Published: November 2021

Abstract?Development of high-performance computational devices needs fast methods of operations with numbers which are presented in floating-point format. One of the most common approaches to build a significand multiplier is using a Wallace CSA-adder tree structure which shows good performance in adding partial sums. Significand multiplier was implemented in FPGA as a part of floating-point multiplier which works with single precision numbers in IEEE754 standard. Keywords?multiplier, floating-point number, carry-save adder, FPGA
USE OF MICROPROCESSOR-BASED DEBUG MODULES FOR THE DEVELOPMENT OF GPS (GPRS) AND GSM COMMUNICATION DEVICES
Authors: Omarov Murad , Tsekhmistro Roman , Suhorukov Semen , Shapovalov Serhii
Published: November 2021

Abstract This report is devoted to an overview of the technical characteristics and the specifics of the use of modern debugging microprocessor modules for the development of devices for geolocation of objects and data transmission over a mobile communication channel. Keywords: microcontroller system, RASPBERRY PI, arduino ide, GSM(GPS-GPRS)-module.
THE USE OF INTELLIGENT MICROPROCESSOR MODULES FOR WORKING WITH SOUND COMMUNICATION IN THE DEVELOPMENT OF EDUCATIONAL EQUIPMENT
Authors: Kartashov Volodymyr , Tsekhmistro Roman
Published: November 2021

Abstract This report is devoted to an overview of the technical characteristics and the specifics of the application of modern debugging microprocessor modules for recognizing audio and text signals. Keywords: microcontroller system, RAM memory, EEPROM memory, RSC-4128 speech recognition processor.
HARDWARE OF MONITORING THE IDENTITY OF OPERATING CYCLES OF DIESEL GENERATOR
Authors: Yenikieiev Oleksandr , Nechvoloda Liudmyla , Zaharenkov Dmitriy , Krykunenko Katerina
Published: November 2021

Abstract It is offered to use a signal of fluctuations of speed of rotation of a cranked shaft at monitoring of identity of working cycles of the power unit. Hardware has been built and information technology for primary signal processing has been created. A deterministic mathematical model of a diesel circuit in the form of a mechanical system with four degrees of freedom under the condition of friction, Laplace transform, methods of similarity theory and signal graph theory, as well as the method of determinants is used in the development of algorithmic software. The monitoring procedure leads to the solution of a system of redefined algebraic equations with optimization of results based on the method of least squares. Keywords: fluctuation signal, information technology, algorithmic software, Laplace Transform.
DESIGNING THE STRUCTURE OF A GENERAL-PURPOSE TELEMEDICINE COMPLEX
Authors: Semenets Valerii , Chumak Valeriia , Svyd Iryna , Zubkov Oleg , Vorgul Oleksandr , Boiko Natalia
Published: November 2021

Abstract Taking into account modern trends, the analysis of the construction principles of telemadic systems, networks and complexes is presented in the work. The general structure of providing telemedicine services is developed. Structures of realization of portable and mobile telemedicine complexes are offered. Infocommunication systems and networks for implementation in mobile telemedicine complexes are analyzed. The advantages of using the sensor mobile body area network of the IEEE 802.15.6 WBAN standard in mobile telemedicine complexes are justified. Keywords: telemedicine, telemedicine complex, medical services, device structure, microcontroller, sensor network, wireless sensor body area network.
ASPECTS OF QUALITY ASSURANCE OF THE EDUCATIONAL PROCESS OF HIGHER TECHNICAL EDUCATION
Authors: Semenets Valerii , Svyd Iryna , Vorgul Oleksandr , Chumak Valeriia , Myttseva Olha , Boiko Natalia
Published: November 2021

Abstract The principles of quality assurance of higher education are considered in the work. The analysis of aspects of quality assurance of the educational process of higher technical education on the example of Kharkiv National University of Radio Electronics is given. Measures to develop a quality system of higher education at the university level are proposed as well. Keywords: thigher education, technical education, quality of education, educational process, microcontroller, FPGA, educational laboratory, remote laboratory.
Y el perro se levantó después de la muerte: apuntes en defensa de la otra especie
Authors: Huanca Jesús
Published: November 2021

It is tragic to see the other species (animals) succumb to the pain of an intentional accident caused by animals (humans), knowing that the indifference of this latter variety is nothing more than pure rencor and selfishness toward itself and the other species. The purpose is to reflect on the inhumanity that is presented in the holders of the greatest rationality without meaning and without brotherhood toward the species that best knows how to show love and fidelity despite not receiving the same thing. That species kept the planet for millions of years because its heart contains no evil, except survival. However, man arrived and changed him to another one full of darkness; today, if the other species dies, it does not matter, for the priority is the infernal legacy that is called: humans. So, the few attempts to reformulate the world will be a challenge for the few who maintain their humanity as the beginning of life.
Piezoelectricity in binary wurtzite semiconductors: a first-principles study
Authors: Zhao Ling-Xu , Liu Jian
Published: November 2021

Using first-principles calculations, we investigate piezoelectricity in a wide range of binary wurtzite semiconductors. We find that piezoelectricity is intimately related to the bond character, e.g. the negative longitudinal piezoelectric effect (NLPE) tends to occur in covalent compounds. We further find a universal sign rule (negative clamped-ion term and positive internal-strain term) for piezoelectricity, and the NLPE occurs as a result of the domination of the former over the latter. Moreover, there exists an inverse linear correlation between the longitudinal and transverse piezoelectric coefficients. This work may offer a simple criterion for efficient computational screening of materials exhibiting the NLPE.
Automatically Diagnosing Suspicious Regions in Skin Images Using Two-Stage Genetic Programming
Authors: Ul Ain Qurrat , Al-Sahaf Harith , Xue Bing , Zhang Mengjie
Published: November 2021

Developing a computer-aided diagnostic system for detecting various skin malignancies from images has attracted many researchers. Unlike many machine learning approaches such as Artificial Neural Networks, Genetic Programming (GP) automatically evolves models with flexible representation. GP successfully provides effective solutions using its intrinsic ability to select prominent features (i.e. feature selection) and build new features (i.e. feature construction). Existing approaches have utilized GP to construct new features from the complete set of original features and the set of operators. However, the complete set of features may contain redundant or irrelevant features that do not provide useful information for classification. This study aims to develop a two-stage GP method where the first stage selects prominent features, and the second stage constructs new features from these selected features and operators such as multiplication in a wrapper approach to improve the classification performance. To include local, global, texture, color, and multi-scale image properties of skin images, GP selects and constructs features extracted from local binary patterns and pyramid-structured wavelet decomposition. The accuracy of this GP method is assessed using two real-world skin image datasets captured from the standard camera and specialized instruments, and compared with commonly used classification algorithms, three state-of-the-art, and an existing embedded GP method. The results reveal that this new approach of feature selection and feature construction effectively helps improve the performance of the machine learning classification algorithms. Unlike other black-box models, the evolved models by GP are interpretable, therefore the proposed method can assist dermatologists to identify prominent features, which has been shown by further analysis on the evolved models.
Specific features of fat-soluble vitamins in the indigenous and administrative population of the Far North
Authors:   Khanty-Mansiysk State Medical Academy, Khanty-Mansiysk, Korchin V. I. , Bikbulatova L. N. ,   Khanty-Mansiysk State Medical Academy, Khanty-Mansiysk, Korchina T. Ya. ,   Khanty-Mansiysk State Medical Academy, Khanty-Mansiysk
Published: November 2021

In recent decades, interest in the study of the content of fat-soluble antioxidant vitamins among residents of the northern territories of Russia has not weakened, which is associated with the transformation of the diet in a harsh climate, a negative ecological situation resulting from the technogenic pollution of the biosphere with various toxicants, and urbanization of the environment. In recent decades, interest in the study of fat-soluble antioxidant vitamins among residents of the northern territories of Russia has not weakened, which is due to the transformation of the diet in a harsh climate, a negative environmental situation that arose as a result of technogenic pollution of the biosphere with various toxicants. Аim. Conduct a comparative analysis of the content vitamins A, D, E in indigenous and alien populations, living on the territory of the Yamalo-Nenets Autonomous Okrug. Material and methods. The study involved 185 males of working age (31.3 ± 12.2 years), permanently residing in the territory of the Yamalo-Nenets Autonomous Okrug. The study participants were divided into 2 groups: the control group (97 representatives of the newcomer population) and the main group (88 people from the ethnic population: Nenets, Khanty). In all examined individuals, vitamins A and E were determined in the blood by the fluorometric method, and the concentration of hydroxyvitamin D – 25 (OH) D3 was determined using the chemiluminescent method. Results. In the course of a comparative analysis of the content of the studied vitamins in the blood, it was found that the average values of vitamin A in the newcomer population were in the range of optimal values, while the provision with vitamins D and E was 1.4 and 1.1 times lower than the minimum. permissible physiological values, respectively. The opposite picture was observed in the aboriginal population, who had a pronounced deficiency of only vitamin A. Conclusion. The results obtained indicate the presence of intergroup features in the content of fat-soluble vitamins in the body of the population of the Far North, which requires a corresponding correction of the diet and the development of a set of preventive measures aimed at improving the ecology of the environment.
On rehabilitation of patients with severe traumatic hand injury (case history)
Authors:   Nizhnevartovsk city children’s polyclinic, Nizhnevartovsk, Burmatov N. A. , Sergeev K. S. ,   Tyumen State Medical University, Tyumen, Gerasimov A. A. ,   Ural State Medical University, Ekaterinburg, Zykova N. V. ,   Surgut Trauma Centre, Surgut
Published: November 2021

Reconstruction of flexor tendons anatomic continuity at the level of osteofibrous canals is one of the most challenging in hand surgery. Due to the complex anatomy of the hand and a high risk of developing postoperative adhesions choosing the optimal treatment protocol remains crucial during flexor tendons rehabilitation period. Surgeons and rehabilitation specialists agree that a number of poor results of flexor tendon surgery can be caused by a wrong postoperative treatment, violation of treatment protocols or just by the lack of adequate rehabilitation measures. The aim of this study is analysis and the description of the case history of treating the teenager with concomitant hand injury after staged reconstructive and restorative nerve and tendon surgery. Materials and methods. The study analyses the use of intratissual electric stimulation (ITES) combined with the complex of special exercises for recovery of upper extremity function at the outpatient rehabilitation stage in patients who underwent nerve and tendon surgery. The objective pain syndrome and trophic innervation of the injured extremity assessment was performed by measuring skin surface electric potential using Gerasimov’s method. The results were interpreted according to “Personalized system of assessing the results of treating trauma and orthopedic patients”. Results. “Combination treatment in the rehabilitation of the upper extremity” proved to be effective to fight pain syndrome and trophic dysfunction of the nervous system. It allows the patient to do the complex of special exercises to prevent limb contracture if used during the late rehabilitation period. It is an efficient method of preventing and treating neurotrophic dysfunctions. Conclusion. The pathogenetically substantiated method of treating upper extremity, the use of intratissual electric stimulation at the outpatient rehabilitation stage of humerus fractures prove to be effective.
Features of the ophthalmological status and risk factors in patients with retinopathy of prematurity
Authors:   Tyumen State Medical University, Tyumen, Ponomareva M. N. , Pochinok E. M. ,   Tyumen State Medical University, Tyumen, Fomina E. V. ,   Tyumen State Medical University, Tyumen, Ashikhmina E. P. ,   Tyumen State Medical University, Tyumen, Alyokhina V. N. ,   Regional Clinical Hospital No 2, Tyumen, Golubeva A. M. ,   Regional Clinical Hospital No 2, Tyumen, Bidash K. I. ,   Tyumen State Medical University, Tyumen, Luntovskaya P. A. ,   Tyumen State Medical University, Tyumen
Published: November 2021

Aim. To identify risk factors for the development of retinopathy of prematurity and features of the ophthalmological status in dynamics, after two years. Materials and methods. The analysis of outpatient records of 638 premature babies for three years was carried out, of which 309 girls (48.44%) and 329 boys (51.56%) were observed in the consulting and diagnostic office for the identification and monitoring of children with retinopathy of prematurity in Tyumen. Results. The study showed that boys developed more severe stages of PH. The analysis of gestation periods in the groups revealed its significant effect on the development of PH (p < 0.05). Patients with a gestation period from 24 weeks to 27.5 weeks are 1.7 times more common in patients of groups 2 and 3 compared to group 1. There was a significant (p ≤ 0.03) increase in the proportion of patients with extremely low body weight (from 500 to 1000 grams) in groups 2 and 3 compared to group 1. In all groups, the majority of patients have anemia, a syndrome of respiratory disorders. Bronchopulmonary dysplasia and intra-ventricular hemorrhages of 3-4 degrees are more common in patients in groups 2 and 3 with a significance level of p = 0.003 and p = 0.001, respectively. The analysis of the clinical course of PH showed the dependence of spontaneous regression of the disease on the stage: it occurred only in patients of groups 1 and 2. Laser retinal coagulation was required in 82.6% of cases in patients of group 3, after which induced self-regression occurred. The inability to perform laser retinal coagulation was noted in 4.3% of cases due to the severity of the somatic status. Dynamic observation of the ophthalmological status for two years showed the absence of pathology in patients of group 1 and its increase depending on the severity of PH: in patients of group 2 in 15% of cases, in patients of group 3 in 65.22%. The revealed ophthalmological pathology includes accelerated refractogenesis, refractive errors, pathology of binocular vision, atrophy of the optic nerve, congenital glaucoma. Conclusion. Further study of risk factors for retinopathy of prematurity, methods of its treatment and their influence on the state of ophthalmological status in dynamics is required. Children who have undergone retinopathy need careful observation by an ophthalmologist throughout the entire period of growth and formation of visual functions.
Morphological changes in the ampula of the uterine tubes in different periods of life of giving women
Authors:   Perm State Medical University named after academician E. A. Wagner, Perm, Balandina I. A. , Nekrasova A. M. ,   Perm State Medical University named after academician E. A. Wagner, Perm
Published: November 2021

The aim of the study is to determine the dynamics of morphological changes in the ampullae of the fallopian tubes at different age periods of life using autopsy material from women giving birth. Materials and research methods. The analysis of the results of a complex morphological study of the ampullae of the fallopian tubes of 150 corpses of giving birth women of adolescence, the first and second periods of adulthood, elderly and old age was carried out. Results. The histological picture revealed regular atrophic changes in all layers of the wall of the ampulla of the fallopian tube. When comparing the mean values in five age groups according to the Kruskell-Wallis test, statistically significant differences in the length of the epithelial lining in the transverse section of the ampulla of the right and left fallopian tubes (p < 0,001), as well as the wall thickness of the ampulla of the right and left fallopian tubes (p < 0,001) have been identified. Conclusion. The results of the study supplement the literature data on morphological changes in the fallopian tube and can be used as a standard reference.
EFFECT OF NUTRITIONAL COUNSELING LEALEF MEDIA ON KNOWLEDGE, SODIUM, POTASIUM INTAKE IN PATIENTS HYPERTENSION
Authors: Dwi Aprilia Dina , Jumiyati Jumiyati , Pravita Sari Ayu
Published: November 2021

ABSTRACK

Hypertension actually is a disease that can be implified on sudden death. It's mostly caused by high blood pressure so that the risk of suffering complications is a big issue. It can be caused by many factors, one of that is high sodium and low potassium consumption as well. Based on 2015 WHO data, it shows that 1.13 billion people in the world have hypertension. Based on Riskesdas data the number of cases of hypertension in Indonesia is 63,309,620 people. In Bengkulu province In 2018 about province's health data, it was found that in 2018 the estimated number of sufferers ≥ 15 years reached 899,010 people. The highest hypertension was found in the Selebar Sub-District Puskesmas Basuki Rahmad about 7,464 .The purpose of this study determines the effect of nutritional counseling using modified leaflet media, knowledge of sodium and potassium intake in patients with hypertension in Basuki Rahmad Community Health Center in Bengkulu City in 2020.This research method is a pre-experimental research design with one group pretest and posttest term. Samples that were taken by purposive sampling of 25 people. Data collected includes pre test data first, namely knowledge, data, sodium intake, and potassium. After that post-test data, it is knowledge data about sodium and potassium consumption. Analysis of the data used is the univariate analysis and bivariate analysis.Based on the research from 25 samples given nutritional counseling, the results obtained knowledge about sodium and potassium consumption value of p-value 0,000.In the conclusion of this study is about the influence of nutritional counseling on sodium and potassium consumption that related to hypertension disease.
Challenges faced by the adoption of big data in the Dominican Republic construction industry: an empirical study
Authors: Reyes-Veras Paola F. , Renukappa Suresh , Suresh Subashini
Published: November 2021

The adoption of Big Data (BD) in the construction industry has been identified as a possible solution to the demand of the current needs of projects, but the integration of this technology has proven to be a challenge specially in industries such as construction that are not technological driven. The understanding of the key elements for the BD adoption has become the focus of many industries that seek to exploit the benefits offered by this technology. Therefore, this paper aims to explore the challenges faced by the adoption of BD in the Dominican Republic (DR) construction industry. To identify these challenges qualitative research was undertaken due to the paucity of scientific data. Twenty-one individuals representing 19 companies who have great impact in the DR construction sector were interviewed. From the analysis six main challenges were identified. They are: lack BD awareness, high cost of investment, resistance to change, lack of government support and regulation, lack of technological expertise, and security concerns of BD. The challenges identified in this study, will serve to help companies better plan their technology adoption process, mainly considering aspects such as the need to tackle the lack of awareness by disseminating and promoting the concept of BD which will not only generate a better understanding of technology by making sure that present and future professionals understand the technology and its benefits. This study provides insight in the challenges to overcome for a successful adoption of BD technology, which would help companies to prepare for a future adoption.
Assessment of a passive wearable robot for reducing low back disorders during rebar work
Authors: Gonsalves Nihar J. , Ogunseiju Omobolanle R. , Akanmu Abiola A. , Nnaji Chukwuma A.
Published: November 2021

Low back disorder continues to be prevalent amongst construction workers, especially the rebar workers who are often engaged in repetitive stooping postures. Wearable robots, exoskeletons, are recent ergonomic interventions currently explored in the construction industry that have potentials of reducing the risks of low back pain by augmenting users’ body parts and reducing demands on the back. This paper presents the assessment of a commercially available passive wearable robot, BackX, designed for reducing low back disorder amongst rebar workers. The study evaluated the exoskeleton in terms of task performance and physiological conditions. Outcome measures such as completion time were employed to evaluate the effect of the exoskeleton on task performance, while activations of Erector Spinae and Latissimus Dorsi muscles, and perceived discomfort across body parts were employed to assess the physiological effects of the exoskeleton. The results indicated mixed effects of the exoskeleton on muscle activations. Although the results revealed that the exoskeleton can reduce muscle activations across the Latissimus Dorsi, mixed effects were observed for the Erector Spinae especially during the forward bending tasks. The exoskeleton reduced completion time by 50% during the rebar tasks. There was also a 100% reduction in perceived discomfort on the back, but discomfort was tripled at the chest region when the exoskeleton was worn. This study reveals the potentials of the exoskeleton for reducing low back disorder and improving productivity amongst the rebar workers. However, the unintended consequences such as increased discomfort at the chest region and activations of the muscles highlight the need for improving existing exoskeleton designs for construction work.
Application of a Patient Safety Culture in Undata Palu Hospital
Authors: Mbaloto Freny Ravika , Salamung Niswa , Elmiyanti Ni Ketut
Published: November 2021

Introduction: The Word Health Organization suggests that developed countries focus more on knowledge of standardized mechanisms and organizational factors that cause unsafe care for patients, such as those related to miscommunication, eg coordination, human error and the need to improve patient safety culture. Patient safety culture is a major and fundamental factor because building a patient safety culture is a way to build an overall patient safety program. This study aims to determine the applicationof patients safety culture at  Undata Hospital, Palu, Central Sulawesi Province, Indonesia. 
Method: Using a survey questionnaire, this study explores differences in the application of of patient safety cultures in patient, critical and emergency rooms. The research samples of 157 people obtained through the use of probability sampling techniques. Data were analyzed using Fisher's exact test. The statistic show that there are differences in the application of safety culture in patient, critical and emergency rooms. Because there are differences in the application of safety culture between rooms, the statistical analysis was continued with the Post Hoc Mann-Whitney test.
Results: The results showed that statistically there was no difference in the application of patient safety culture between inpatient and critical rooms because p = 0.643 (p> 0,05 ), a difference in the application of patient safety culture between in patient and emergency rooms because p = 0.011 (p <0,05), a difference in the application of patient safety culture between critical rooms and emergency rooms because p = 0.049 (p<0.05).
Correlation Knowledge and Attitude of Nurse Behaviour in Medical Waste Disposal in Inpatient Ward of The JIH Hospital Yogyakarta
Authors: Jennifa Jennifa , Sari Dwi Agustiana , Anugraheni Ertanti
Published: November 2021

Background: In Indonesia there is an increase in the amount of medical waste. Medical waste is still not managed properly and the amount is very large.Previous studies conducted found that nurses had  less behavior in disposing both medical and non-medical waste (58,3%). Hospital waste management carried out by nurses and medical personnel, must be done properly and carefully.
Method: This research was an analytic survey research with cross sectional approach. The population of this study were 150 nurses in the Inpatient Ward of JIH Hospital Yogyakarta. The sampling technique was simple random sampling, amounting to 60 people. The research instrument used questionnaire. The data analysis technique used chi-square test and logistic regression.
Result: Nurses knowledge mostly in sufficient category (55%). Nurses attitude mostly in supportive category (56,7%). Nurses behavior mostly in good category (50%). There was correlation between knowledge and medical waste behavior with significant value 0,030 (p<0,05). There was correlation between attitudes and medical waste behavior with significant value 0,019 (p<0,05).
Conclusion: There were correlations of knowledge and attitudes to the medical waste behavior on nurses in inpatient ward of JIH hospital Yogyakarta.
Relationship between Spinal Anesthesia and Hypothermia Incidence among Post Operative Patients in the Operating Recovery Room "JIH" Hospital Yogyakarta
Authors: Afrida Maryudella , Nurwidiyanti Erika , Marfuah Marfuah
Published: November 2021

Introduction: Complications of surgery may lead the patient to experience ill and even death. One of the complications in the patient after surgery with spinal anesthesia is the incidence of hypothermia. Hypothermia can occur as a result of a combination of anesthesia and surgery that causes disturbance in body temperature regulation that can make decreasing body temperature.
Method: This research uses a descriptive correlational method with a retrospective approach, with total sampling technique amount of 106 respondents, using a checklist sheet research instrument.Data analysis techniques spearman rank.
Results: The characteristics of surgery patients with spinal anesthesia in the operating room of Yogyakarta "JIH" Hospital were mostly female, 87.9%, most of whom were adults 74.1%, the highest frequency of surgery with spinal anesthesia duration >2 hours 55.7% and had an incidence of hypothermia 54.7%. Correlational statistical analysis obtained a Cramer's value of 0.371, a correlation coefficient value of 0.348 with a probability value (p-value) of 0.000.
Conclusion: There is a relationship between spinal anesthesia and hypothermia incidence among postoperative patients in the operating recovery room "JIH" Hospital Yogyakarta. The direction of the correlation is positive and closeness is sufficient.
Relationship Knowledge about Covid-19 with Hand Washing Habits in Indrasari Village Martapura District Banjar Regency South Kalimantan Province in 2021
Authors: Wardhani Annalia , Pertiwi Melinda Restu
Published: November 2021

Introduction: The spread of Covid-19 can be prevented by various efforts. The one management that must be applied by all communities in various settings is diligently washing hands using soap in running water. The purpose of this study was to determine the relationship between public knowledge about Covid-19 and hand washing habits in Indrasari Village, Martapura District, Banjar Regency, South Kalimantan Province in 2021.
Method: The research design used in this study was descriptive analytic with a correlational study and a cross sectional approach with the research population. as many as 6,567 people. The sampling technique used is Accidental Sampling with a total sample of 377 respondents.
Result: The results of the research conducted through the spearman rank test showed a value of = 0.000 p <α (0.05) which indicates that there is a relationship between public knowledge about Covid-19 and hand washing habits. It is hoped that health workers will continue to carry out continuous counseling about the importance of implementing good and correct hand washing habits.
Conclusion: There is a relationship between public knowledge about Covid-19 and the habit of washing hands in Indrasari village, Martapura district, Banjar district, South Kalimantan province in 2021.
Natural Gas in Iraq, Currently and Future Prospects: A Review
Authors:   Al-Amarah University College, Department of Petroleum Engineering, Maysan, Iraq, J. Jasim Dheyaa , J. Mohammed Thamer ,   Al-Amarah University College, Department of Petroleum Engineering, Maysan, Iraq, F. Abid Mohammad ,   University of Technology, Chemical engineering Department, Baghdad, Iraq
Published: November 2021

This paper aims to demonstrate the importance of natural gas as a substantial source of energy as an alternative to crude oil, with the increase in global demand for it in the future, and the importance of this source for Iraq at the economic and environmental level. This article provides an overview of Iraq's natural gas reserves and the geographical distribution of this reserve over the regions of Iraq, in addition to the companies operating and developer there. The challenges facing the export and industry of gas in Iraq, the quantities of gas that are flared annually, and the associated financial and environmental damage were also presented. Finally, if the quantities of produced gas were to be invested, Iraq would achieve a significant improvement in the economic and environmental level.
Applying decision tree algorithm to explore occupational injuries in the Turkish construction industry
Authors:   Department of Civil Engineering, Mugla Sitki Kocman University, Mugla, 48000, Turkey, Tetik Yilmaz Ogunc , Kale Ozge Akboga ,   Department of Civil Engineering, Izmir Demokrasi University, Izmir, 35140, Turkey, Bayram Irem ,   Department of Civil Engineering, Ege University, Izmir, 35040, Turkey., Baradan Selim ,   Department of Civil Engineering, Ege University, Izmir, 35040, Turkey.
Published: November 2021

Occupational injuries and fatalities are one of the most significant issues in the construction industry. Variables, such as workers’ behavior, age, worksite condition, and type of activity, play key roles in the occurrence of construction accidents. In recent years, data mining techniques have been successfully used not only in health, economy, and social sciences but also in construction-related fields. In this study, C5.0 decision tree algorithm was used to analyze the accident data obtained from the Social Security Institution of Turkey. A classification tree model was created to discover the associations between the attributes. The results show the relationship between the injury status of workers and the attributes, and the accuracy rate of the model was 70.26%. Meanwhile, according to findings, unsafe conditions, type of accident, and activity type were the most important attributes in the model. Furthermore, the predictor importance of the attributes was compared, and several outcomes were discovered; for instance, the workers’ educational background has greater predictive power than age. On the other hand, the branches of the decision tree pointed out several attribute sequences due to their high rated serious/fatal injury rates. The results of this study can be used in the prevention and mitigation strategies for construction accidents.
Evaluates A PVT Correlation to Estimate Dead Oil Viscosity for Libyan Crudes Using 104 Samples from Different Reservoirs
Authors:   Petroleum Engineering Institute, China University of Petroleum-Beijing CUP, China, A. Samba Mohammed , Yiqiang Li ,   Petroleum Engineering Institute, China University of Petroleum-Beijing CUP, China., A. Alkhyyali Wannees A. Alkhyyali ,   Department of Oil and Gas Engineering Department, Sebha University, Libya., A. Altaher Yousef ,   Department of Oil and Gas Engineering Department, Sebha University, Libya., Hidayat Fiki ,   Department of Petroleum Engineering, Faculty of Engineering, Universitas Islam Riau, Pekanbaru, Indonesia
Published: November 2021

Viscosity is defined as the resistance of the fluid to flow. It plays a very significant role in most oil and gas engineering applications. The measured viscosity for any crude oil at surface condition is called by the dead oil viscosity, where the dead oil viscosity is a function in any correlation to calculate the viscosity of the crude oil. Thus, the dead oil viscosity is important in most applications related to the petroleum engineering. Accordingly, a new mathematical and artificial neural network (ANN) dead oil viscosity correlations were developed for Libyan crudes and compared with renowned dead oil viscosity correlations using 104 samples from different reservoirs. The evaluation in this study has been done by statistical and graphical error analysis. The results shown that the ANN model has proven to be a useful tool for predicting where the ANN model has given the best result with low error AAD was 14.40509 % and R^2 was 95.91%. The ANN model and mathematical model gave the lowest error when they compared with different empirical correlations.
VARIABLE DETERMINED FOR OPTIMIZATION OF ALTERNATING ENERGY ON THE LOAD BY THE ADAPTIVE TAGUCHI METHOD
Authors:   Department of Aviation Electric- Electronics, School of Civil Aviation, Erzincan Binali Yıldırım University, Can Erol
Published: November 2021

It is important to find the optimum point in terms of energy quality in the studies for electrical energy conversions with the converter and inverter circuits. In such studies, it has been tried to find the optimum operating point by using control systems such as PID and Fuzzy Logic in closed-loop controls. When a large number of variables are involved in finding the optimum point, closed-loop control methods such as these may be insufficient to find the optimum point. Therefore, in this study, the Adaptive Taguchi Method (ATM) with the maximum-minimum value is used for the estimation of variables providing the optimum point for energy quality by using it in a multilevel inverter with a double dc-dc converter. While in traditional Taguchi Methods, dependent variables predict the results by revealing their effects on independent variables, in ATM, besides the effects of the independent variables, the effects of different dependent variables on each other are also estimated. First, the system to which the ATM will be applied is introduced. Then, the principles of applying the ATM are explained. In the known Taguchi method, variable values to be found with 34 = 81 trials, variables are estimated with 27 trials, while the values of two different dependent variables in the system can be found with 54 trials instead of 2x34 = 2x81 trials. The resulting values to be estimated with the proposed ATM method are estimated with 27 trials instead of 2x81 or 54 trials. Finally, the observation results to be used for estimation are analyzed and evaluated. By trying the prediction results, it is seen that the proposed system is quite effective because the estimated result value that is %3.71 in the experiments gives a lesser distortion value than the values used for prediction.
Optimal Switching and Load Distribution Strategy for Energy Minimization and Performance Optimization of Cloud Data Center
Authors:   University College of Engineering, Dindigul, Tamil Nadu, India, Anna University, A Poobalan , S Sangeetha ,   Computer Science and Engineering, Rathinam Technical Campus, Coimbatore, P Shanthakumar ,   Srisubramaniya College of Engineering and Technology
Published: November 2021

Cloud computing is a promising computing technology utilized in every stage of the business. The cloud offers different services to cloud users from anytime to anywhere, and it is attained with different parameters, like load optimization, resource optimization. Due to the increase in data center, energy consumption has become a major issue in green data centers. The majority of data centers are function using peak load with huge scales. Thus, it is essential for carrying out energy saving in cloud data centers. This paper designed an energy-saving method using fat tree. The proposed techniques optimize the load at different zones of data center and user in the cloud platform. Here, the distribution of load in cloud data centers is performed using Taylor-based Manta Ray Foraging Optimization (Taylor-MRFO), which is an integration of Manta Ray Foraging Optimization (MRFO) and Taylor series. The method utilized different objectives that involve power, load, latency, and bandwidth. With the load distribution, the switching of cloud data center to the desired mode is performed using Actor critic neural network (ACNN). Thus, the dual strategy leads to performance optimization in cloud infrastructure and also in consolidating parallel workload in data centers more effectively. The proposed Taylor-MRFO+ACNN outperformed other methods with minimal energy of 0.553, minimal load of 0.363, and minimal fitness of 0.437, respectively.
A new optimization-simulation model considering sustainability factors in the product design
Authors:   Department of industrial engineering, Yazd University, Yazd, Iran., Mohagheghian Elahe , Hosseini-Nasab Hasan ,   Department of industrial engineering, Yazd University, Yazd, Iran., Zare-Mehrjerdi Yahia ,   Department of industrial engineering, Yazd University, Yazd, Iran.
Published: November 2021

This study aims at understanding factors of an industrial product driving the sustainability and long-term survival. On the whole, sustainability in product design is an important issue for attracting and retaining customers around the world. Based on a printer case, this study attempted to determine sustainability factors in the product design based on a hybrid method of the conjoint analysis (CA), the fuzzy cognitive mapping (FCM) and the system dynamics (SD). In this approach, first, the optimal values of initial data are determined by CA. These values are entered into a FCM-SD model to evaluate the cause-and-effect relationships between factors of sustainability and long term scenarios. The results provide insights into which factors most strongly influence sustainability, namely, environmental, social, and economical factors. Hence, diverse scenarios at inter and intra-cluster levels were created to clarify the effects of variable changes on the model described.
Kinetics of Adsorption Competition of Pb-Cu and Pb-Methylene Blue in Aqueous Solution using Silica Gels from Coal Fly Ash
Authors:   Inorganic Material for Energy and Environmental Research Group, Department of Chemistry, Universitas Jember, Jl. Kalimantan 37, Jember, 68121, East Java, Indonesia., Sulistiyo Yudi Aris , Ruthmianingsih Vivi ,   Inorganic Material for Energy and Environmental Research Group, Department of Chemistry, Universitas Jember, Jl. Kalimantan 37, Jember, 68121, East Java, Indonesia., Mukarromah Inayatul ,   Inorganic Material for Energy and Environmental Research Group, Department of Chemistry, Universitas Jember, Jl. Kalimantan 37, Jember, 68121, East Java, Indonesia., Haryati Tanti ,   Inorganic Material for Energy and Environmental Research Group, Department of Chemistry, Universitas Jember, Jl. Kalimantan 37, Jember, 68121, East Java, Indonesia., Andarini Novita ,   Inorganic Material for Energy and Environmental Research Group, Department of Chemistry, Universitas Jember, Jl. Kalimantan 37, Jember, 68121, East Java, Indonesia., Suwardiyanto Suwardiyanto ,   Inorganic Material for Energy and Environmental Research Group, Department of Chemistry, Universitas Jember, Jl. Kalimantan 37, Jember, 68121, East Java, Indonesia., Rabiu Hamza Sani ,   Department of Applied Chemistry, Federal University Dutsin-ma, Katsina State, Nigeria., Sunnardianto Gagus Ketut ,   Research Center for Physics, Indonesian Institute of Sciences, Kawasan Puspitek Serpong, Tangerang Selatan, 15314, Banten, Indonesia.
Published: November 2021

The present study investigates the removal of Pb2+ using silica gel (SG) in the presence of the Cu2+ (Pb-Cu) and methylene blue (Pb-MB) ion competitor. These pollutants are toxic and harmful to the ecosystem. The presence of the multicomponent pollutants causes more complications to remove from the water system. The adsorptions were examined in a batch system under certain experimental conditions (pH solution system and contact time). Meanwhile, the FTIR spectrophotometer determines the differences adsorption interaction in silica functional groups before and after adsorption. The results showed that the silanol group of silica gel acted as an adsorption site. In the single systems, the adsorption capacity of silica gel follows the order MB > Cu2+ > Pb2+ of around 84.03; 64.81; and 56.88 mg.L−1, respectively. The kinetic adsorptions of both single and binary systems were best fitted to pseudo-second-order models. In the binary solution systems, both adsorption capacity and adsorption rate of each component decreased compared to the single system. The results indicated that the cationic competitors influenced the Pb2+ adsorption, or vice versa, depending on the amount of charge and adsorption affinity.
Improving of Green Sand-Mould Quality using Taguchi Technique
Authors:   Department of Mechanical Engineering, Muthayammal Engineering College, Rasipuram, Tamil Nadu 637408, Boopathi Sampath
Published: November 2021

The green sand mould casting is an inevitable process to make large size and complex shape of the industrial components. The quality of green sand in mould is a significant phenomenon on casting quality. In this research, the number of ramming, sand thickness mould, and percentage of additives (western bentonite) mixing with sand have been considered to study the effects on permeability and hardness of mould by L27 orthogonal array. Greensand mould experiments have been conducted in the industry to observe the output parameter variations by Taguchi statistical analysis. It was revealed that the maximum permeability and minimum sand hardness have been obtained from the minimum number of ramming, thin sand thickness, and minimum mixing of additives in the sand. The confirmation tests were conducted to validate the predicted control parameter on responses.
Enhancement of corrosion resistance and mechanical properties of API 5L X60 steel by heat treatments in different environments
Authors:   Department of Mechanic, Engineering College, Basrah University, Basrah, Iraq., Lieth Haider Mahdi , Al-Sabur Raheem ,   Department of Mechanic, Engineering College, Basrah University, Basrah, Iraq., Jassim Raad Jamal ,   Department of Mechanic, Engineering College, Basrah University, Basrah, Iraq., Alsahlani Ahmad ,   Department of Mechanic, Engineering College, Basrah University, Basrah, Iraq.
Published: November 2021

Steel pipelines are commonly used in the petroleum industry where high strength and durability values are required. In oil installations, the problems of corrosion, especially with crude oil, appear clearly and dramatically, in dealing with API 5L series. Improving the corrosion protection and mechanical properties are a genius goal for steel manufacturers, the heat treatment processes are familiar with this field. In this study, experimental investigations were executed to find the heat treatment influence on the corrosion rate, microstructure, and mechanical properties behavior of API 5L X60 pipeline steel in the presence of three different environments: seawater, freshwater, and crude oil. Two austenitizing temperatures 900°C and 800°C were prepared followed by quenching at 600°C, 450°C, and 300°C respectively, where the corrosion rate was estimated by the mean weight loss method. In this study, more than 60% of the corrosion rate in both seawater and freshwater was improved at 900 ºC austenitizing tempered at 300ºC for the selected pipeline specimens while only 22% reduction was achieved in crude oil. Different microstructure phases appeared in the heat-treated specimens such as tempered martensitic at 300°C and fine-grained ferrite with polygonal ferrite at 600°C. The microhardness values decreased with increasing the tempering temperatures while impact toughness values increased with tempering temperature increasing from 300°C until it was reached 450°C and then return to decrease again in 600°C.