bluuebunny/crossref_metadata_2025 huggingface dataset:
Innovative Calcium Carbonate-Based Products to Repair Cracked Cement Mortars
Authors: Zuena Martina , Pondelak Andreja , Garbin Enrico , Panizza Matteo , Nodari Luca , Škapin Andrijana Sever , Škrlep Luka , Artioli Gilberto , Tomasin Patrizia
Published: June 2022

The durability of Portland cement mortars is often affected by environmental factors, which can cause physicochemical and mechanical degradation processes. In this study, the performance of three products, calcium acetoacetate and calcium tetrahydrofurfuryloxide dissolved in two different solvents developed and tested as stone consolidants, was evaluated in terms of crack filling or sealing and consolidation. Realistic cracks were induced in quasibrittle cement mortar prisms using a custom-designed test rig. The effectiveness and the performance of the considered treatments, investigated on specimens, were evaluated by optical and scanning electron microscopy, colourimetry, water absorption rate, ultrasonic pulse velocity, and surface hardness measurements. Results revealed that, in the examined conditions, the products were more suitable as surface consolidants than as crack fillers.
Fracture Mode Transition during Assembly of TC4 High-Lock Bolt under Tensile Load: A Combined Experimental Study and Finite Element Analysis
Authors: Feng Derong , Dong Chenxi , Hu Yunpeng , Wang Yamei , Ma Jianhua , Huang Zhangdong , Wan Qiang
Published: June 2022

Fracture during the assembly process is an important failure mode for high-lock bolts used in the aviation industry, which greatly increases the potential of unpredictable accidents during service. In the current study, the underlying reasons for fracture during the assembly of a TC4 high-lock bolt was investigated using a tensile test and finite element analysis (FEA). The microstructure of the as-received bolt consisted of a high proportion of α phase, some β phase, and a small amount of α′ phase formed via martensite phase transformation during the rammer process. The experimental force–displacement curves revealed an average yield load of 55.9 kN and a breaking load of 67.65 kN. The corresponding yield strength was calculated to be 0.9 GPa, which was smaller than the standard value of TC4. This was attributed to the preload-induced stress concentration on the thread surface, leading to obvious strain hardening, which can lead to crack initiation. The effect of preload was further confirmed by the fractographies in which the initial crack was observed on the thread surface. The fractographies suggested that hybrid fracture occurred on the tensile loaded bolt. The initial failure was brittle fracture on the thread surface, transforming into ductile fracture in the screw. The results can contribute to understanding the effect of preload on the load carry capacity of high-lock bolts and provide a strategy to design its assembly specification.
Extraction of Alkalis from Silicate Materials Part 1—Amorphous Silicate Materials
Authors: Szewczenko Wiktor
Published: June 2022

The main building materials widely used worldwide are those based on cement, glass, and ceramics. Taking into account the fact that the raw material base for the production of these materials is narrowing, and the quality of raw materials is declining, methods are being used to modify the structure of silicate materials in order to improve their properties when using cheaper raw materials and industrial waste, which should help reduce the energy intensity of their production. One of the ways to reduce energy consumption is the use of alkaline components in the chemical composition of silicate materials, which makes it possible to reduce the temperature of their synthesis. However, the presence of alkalis in the material at the stage of the operation is undesirable since it contributes, for example, to a decrease in the chemical resistance of silicate glasses or leads to the phenomenon of alkaline corrosion in cement products. In this regard, in order to reduce the negative impact of alkalis, it is necessary to extract them from the surface layers of the silicate material. There are various methods for extracting alkalis from silicate materials, some of which are presented in this article.
Radiographic and Histomorphometric Evaluation of Sinus Floor Augmentation Using Biomimetic Octacalcium Phosphate Alloplasts: A Prospective Pilot Study
Authors: Kim Seok-Jun , Kim Joo-Seong , Kim Woong , Kim Suk-Young , Lee Won-Pyo
Published: June 2022

This prospective single-arm clinical study aimed to radiographically and histomorphometrically evaluate the efficacy of the lateral approach for sinus floor elevation (LSFE) using biomimetic octacalcium phosphate (OCP) synthetic bone graft (Bontree®). LSFE using Bontree® was performed on 10 patients (15 implant placement sites) willing to undergo implant surgery, followed by implant placements after 6 months of the healing period. The vertical bone height (VBH) and Hounsfield unit (HU) values at each implant placement site were evaluated radiographically using cone-beam computed tomography at baseline immediately after surgery (T1) and 6 months after surgery (T2). A histomorphometric evaluation of the bone core biopsy specimen was also performed. The mean VBH and HU changes at all sites included a decrease by 0.91 mm and a statistically significant increase by 431.86, respectively, from T1 to T2. The mean ratio of the newly formed bone (23.34% ± 10.63%) was greater than that of the residual bone graft (19.09% ± 8.74%), indicating that Bontree® is effective for new bone formation. This pilot study suggests that Bontree® is a promising bone substitute for LSFE.
Influence of Surface Texture on Sealing Performance of PTFE Materials
Authors: Ding Xiaosong , Wu Jian , Wang Yonggang , Cui Bo , An Shuang , Su Benlong , Wang Youshan
Published: June 2022

Due to the hydrodynamic pressure effect, the bearing capacity of the oil film on the surface of a textured friction pair is greater than that of a smooth surface. In this paper, the effects of PTFE surface texture parameters (shape, depth, width, and area ratio) on the oil film bearing capacity and leakage of the sealing system under lubrication are studied using the FLURNT simulation. It is found in this present study that greater texture depths do not necessarily lead to better sealing performance. When the texture depth exceeds a certain level, a reverse flow occurs at the bottom of the texture, thereby weakening the hydrodynamic pressure effect. An optimal texture depth of 5–10 μm maximizes the oil film bearing capacity. Within a certain range, the oil film bearing capacity increases along with texture widths. In addition, leakage of the rectangular texture rises significantly with growing texture widths. Larger texture area ratios result in higher leakage, but the bearing capacity first rises and then falls with an increase in the area ratio, with a maximum value of 70–80%. Considering the influence of texture parameters on oil film bearing capacity and leakage, selecting the most appropriate texture parameters for surface texture treatment optimizes the performance of the sealing system. The findings of this paper provide a theoretical basis for improving the sealing performance of high-end aviation equipment using texture treatment, thereby enabling the application of surface texture technology to improve the tribological properties of materials.
Diagnostic significance of tumor markers CA125 and HE4 in suspected ovarian cancer
Authors:   FSBI National Medical Research Center for Obstetrics, Gynecology and Perinatology named after academician V.I. Kulakov of the Ministry of Health of Russia, Klimov Vladimir Anatolievich
Published: June 2022

In developed countries, ovarian cancer ranks third in prevalence among malignant diseases of the female genital area; the peak incidence occurs at the age of 55-58 years. An increased risk of ovarian cancer is observed in women with early onset of menstruation and late menopause; women whose first pregnancy occurred at the age of under 19 and over 35 are also at risk. The use of hormonal contraceptives can almost halve the risk of this malignant process. Due to the absence of severe clinical symptoms in every second case, this pathology is detected already at stages III-IV, which explains the rather low survival rate. With timely diagnosis, relapse can be avoided in 73-76% of cases due to the effects achieved in the conduct of chemotherapy. CA125 and HE4 are among the tumor markers of choice, the level of which is checked for suspected ovarian cancer. To assess the risk of the process malignancy, the ROMA index is used. This index represents a mathematical model, the calculation of which takes into account the absolute values of CA125 and HE4, as well as the menopausal status of awoman. Determining the concentration of tumor markers in dynamics is also used to assess the effectiveness of the treatment. At the same time, it should be noted that an increase in the content of tumor markers does not always indicate the presence of a malignant process; this picture can be observed with endometriosis, polycystic ovary syndrome, and neoplasms affecting the peritoneum, pleura, pancreas, and liver.
Notes on Atriplex (Amaranthaceae) species and hybrids, particularly A. littoralis and the hybrid A. littoralis x A. prostrata (A. x hulmeana)
Authors: Wilcox Michael
Published: June 2022

Atriplex prostrata Boucher ex DC. (Spear-leaved Orache) and A. littoralis L. (Grass-leaved Orache) are two distinct taxa. Observations on their hybrid A. x hulmeana Taschereau suggest variation relates to hybridisation, backcrossing and or segregation. These features may also relate to difficulties in identifying other species and hybrid combinations.
Rubus sellii, a new name for R. rubicundiflorus (Rosaceae)
Authors: Idrees Muhammad , Shaw Julian M.H.
Published: June 2022

A new name, Rubus sellii M. Idrees & J.M.H. Shaw, is proposed to replace R. rubicundiflorus P.D. Sell (Rosaceae), which is an illegitimate later homonym of R. × rubicundiflorus Sudre.
PENGGUNAAN GERINDA DUDUK MENURUNKAN KADAR KEBISINGAN DAN KELUHAN MUSKULOSKELETAL PADA PANDE BESI DI DESA GUBUG TABANAN
Authors: Ida Ayu Made Sri Arjani
Published: June 2022

Introduction: Blacksmith is one of the small industries growing in the village of Gubug, Tabanan Regency. These blacksmith craftsmen have been in the job for quite a long time and passed down from generation to generation from their ancestors. They do work as the responsibility of their ancestors. One of the processes in making household tools is small knives, large knives, sickles, and machetes; they are faced with a tool in the form of a grinder. In this process, the worker holding a grinder weighing 1.7 kg vibrates, makes a noise, and sits as is. Working in a noisy environment, being exposed to vibration for a long time is an additional burden that will cause hearing loss complaints and diseases such as Raynaud's Syndrome, Tenosynovitis, and Carpal Tunnel Syndrome. This study aimed to determine the effect of using an ergonomic sitting grinding wheel to reduce noise levels and musculoskeletal complaints in Pande Besi in Gubug Tabanan Village. Methods: This research is an experimental study with treatment by subject design. The population is the small industry workers of Pande Besi in Gubug Village, Tabanan Regency, with as many as 40 people from 10 small industries. The sample is determined based on small industry groups by simple random sampling or simple random sampling with a table of random numbers. The sample size was determined based on the score of musculoskeletal complaints so that the number of small industrial groups was 3.94, rounded up to 4 groups. Each small industry group consists of four people, so the sample size is 16 people. Results: The mean age of the subjects was 49.112±12.15 years, body weight 66.68±6.64 kg, height 162.31±6.78 cm, and body mass index of subjects 25.29±1.71 kg/m2. Statistical analysis showed that there was a significant difference. The average ambient temperature, namely wet temperature, dry temperature, and air humidity, showed no significant difference, noise showed a significant difference, and there was a decrease in the noise of 30.54% before and after using the seat grinder. There was a decrease in complaints of 13.23% after improving the working attitude of the blacksmith. Conclusion: There was a significant decrease between noise levels and musculoskeletal complaints before and after using a seated grinder (p0.05).Keywords: Noise Levels, Musculoskeletal Complaints
Gambaran Methicillin Resistant Staphylococcus aureus (MRSA) Pada Petugas Kesehatan RSUD Wangaya Kota Denpasar
Authors: Suyasa Ida Bagus Oka
Published: June 2022

Background.        Methicillin Resistant Staphylococcus aureus (MRSA) is a Staphylococcus aureus bacterium that is immune to penicillin isoxazoyl antibiotics such as methicillin, oxacillin and flucloxacillin. Staphylococcus aureus is one of the normal flora of the anterior nares and skin, which can be pathogenic when the patient's immune condition is deteriorating.Purpose. to determine the percentage of Methycillin Resistant Staphylococcus aureus (MRSA) in health staff at Wangaya District Hospital in Denpasar.Method. type of research is descriptive research design with Cross Sectional. The results of nasal swabs were implanted on MSA media and then catalase and coagulase tests were performed. The methicillin resistance test is carried out if after a positive catalase test and a positive coagulase test. If found MRSA will be continued by sensitivity test with antibiotics based on CLSI.Results.  found five isolates of Staphylococcus aureus (11.36%), one MRSA isolate (2.27%), sensitive antibiotics were Tetracyclin, Cephazolin, Trimethroprim, Amikacin, Ciprofloxacin, Doxycycline, Ofloxacine and Levofloxacine.Conclusion. One MRSA isolate (2.27%) founded from nasal swabs of health staff at Wangaya District Hospital in Denpasar.
IDENTIFIKASI JAMUR Candida albicans PADA URINE WANITA MENOPAUSE DI BANJAR TAMAN DESA DARMASABA KECAMATAN ABIANSEMAL KABUPATEN BADUNG
Authors: Mastra Nyoman
Published: June 2022

ABSTRACTBackground: menopausal women are a predisposing factor for candidiasis. In menopausal women humoral changes occur in the body and pH in the vagina. This change in pH can lead to increased fungal growth of Candida albicans. Purpose: this study aims to identify the fungus Candida albicans in urine samples of menopausal women at Banjar Taman, Darmasaba Village, Abiansemal District, Badung Regency. Method: this research was conducted descriptively with a cross sectional approach. The sampling technique with Non-probality sampling is Purposive Sampling. Urine samples were cultured on SDA media. Result: the growing colonies were identified macroscopically and microscopically and tested germ tube. Identification results showed that from 33 urine samples, 5 (15%) were positive, there was a Candida albicans fungus which showed protruding from the surface of the media, the surface on the colonies was smooth, yellowish white, and had a yeast odor. On microscopic examination it was found that yeast, pseudohifa, clamidospora, blastospora and germ tube. Conclusion: the percentage value shows the occurrence of Candida albicans fungi in the urine of menopausal women in Banjar Taman, Darmasaba Village, Abiansemal Subdistrict, Badung Regency so that menopausal women are expected to always maintain personal hygiene and routinely conduct microbiological examinations.Keywords: urine, menopausal women, candida albicans
ANALISIS KADAR NITRAT DAN NITRIT AIR HUJAN YANG DITAMPUNG PADA CUBANG DI PULAU NUSA PENIDA KABUPATEN KLUNGKUNG
Authors: Putri Dhyana
Published: June 2022

The community water source in Nusa Penida Island is largely derived from rainwater that is collected in cubang used for drinking and clean water. This research aims were determine the levels of nitrate and nitrite in rainwater which is collected in cubang. The method used in this research is descriptive method. The examination was carried out using the spectrophotometric method. The results of examination of nitrate levels showed that 7 samples (23.3%) had nitrate levels above the maximum limit, while 23 samples (76.7%) had nitrate levels below the maximum limit, according to the regulation of Water Quality Standard I Pergub Bali No. 8 of 2007, which states that the maximum level of nitrate in water is 10 mg/L. The results of nitrite level examination showed 21 samples (70%) had nitrite levels above the maximum limit, while 9 samples (30%) had nitrite levels below the maximum limit, according to the regulation of Water Quality Standards I Pergub Bali No. 8 of 2007, which states that the maximum level of nitrite in water is 0.06 mg/L. The presence of nitrate and nitrite in rainwater are influenced by the nitrogen cycle that occurs in nature. The high levels of nitrate and nitrite in rainwater collected in cubang are supported by environmental conditions in the hole so that it makes it easier to contaminate.Keywords: rainwater, cubang, nitrate levels, nitrite levels
UJI FITOKIMIA DAN KAPASITAS ANTIOKSIDAN TEH RING CANG SEBAGAI TEH HERBAL KESEHATAN
Authors: Karta I wayan
Published: June 2022

Background: Diets that contain lots of antioxidants will reduce the risk caused by degenerative diseases. Based on this, many people develop food or health products that contain antioxidants. Jempiring leaves (Gardenia jasminoides Ellis) and Secang wood (Caesalpinia sappan L.) contain bioactive and antioxidant compositions that are beneficial to health, so they are developed into herbal products.Purpose: To analyze phytochemical reserves, antioxidant capacity and conduct organoleptic tests for Ring Cang tea, describing the benefits of ring rings based on laboratory test results and literature studies on jempiring leaves and secang wood.Method: This research is a descriptive study by conducting phytochemical testing laboratory tests and DPPH antioxidant methods and conducting organoleptic tests with 15 panelists.Results: Ring tea can contain flavonoids, tannins, terpenoids, alkaloids and polyphenols. Ring Cang tea has an antioxidant capacity of 291.43 mg / L and IC50 1.53 μg / mL which shows the antioxidant activity of ring cang tea in the very strong category. Ring tea can be tested organoleptically accepted by panelists in terms of color, taste, and aroma, so that it can be developed into herbal teas for the community.Conclusion: Cang tea is an antioxidant tea that can be used in handling generative or degenerative diseases, such as diabetes, antiviral, anti-inflammatory, and other diseases.
EFEKTIFITAS EKSTRAK BONGGOL NANAS (Ananas comosus L. Merr) TERHADAP Escherichia coli
Authors: Juariah Siti , Wati Diana
Published: June 2022

Escherichia coli is one of the bacteria that lives in digestive system and could cause a diarrheal. Diarrheal treatment is done by using antibiotic.  The use of antibiotic in continuous way could be affected the bacteria resistances toward antibiotic. However, the study on natural anti-bacterial substance is being carried out using pineapple hump. This study was aimed to determine the secondary metabolites that contain in pineapple hump and the inhibition test of Escherichia coli by using experimental laboratory method in vitro. Pineapple hump extract created in many concentrations are 10%, 15%, 20%, 25%, 40%, 60%, and 80%, after that inhibition test of Escherichia coli was done and it will be incubated during 1x24 hours. The result  Shows that pineapple hump extract gain percentage of an inhibition test of Escherichia coli in concentrations 40%, 60%, and 80% are 50%, 63%, and 75%, compared with positive control and active compounds that contain in pineapple hump are bromelin, flavonoid, tannin, and saponin enzymes. This result could be concluded that pineapple extract hump potentially inhibit Escherichia coli which is marked by the formation of inhibitory zone.
DETEKSI KEBERADAAN TELUR Soil Transmitted Helminth (STH) PADA KUKU PETANI
Authors: WARDANI DITA PRATIWI KUSUMA
Published: June 2022

Soil-Transmitted Helminth (STH) is an intestinal nematode that requires soil for the process of reproduction and maturation from non-infective to infective. The nematodes included in this species include Ascaris lumbricoides, Trichuris trichiura, and two species of hookworm, Necator americanus, and Ancylostoma duodenale. Personal hygiene can affect the incidence of helminth infections in humans. The purpose of this study was to determine the relationship between personal hygiene and the presence of Soil-Transmitted Helminth (STH) eggs on farmers' nails. This research was conducted by analytical observation with a cross-sectional design in April-May 2021. The research method was filling out questionnaires and identifying eggs using the 10% KOH sedimentation method. Data were analyzed by univariate and Pearson Chi-Square tests. The results of this study showed that 4 fingernail samples (47.05%) were positive for Ascaris lumbricoides eggs and 2 fingernail samples (11.76%) were positive for Minute Intestinal Fluke, as many as 8 toenail samples (82.35%) were positive for Ascaris lumbricoides eggs. and 1 sample of toenails (5.88%) positive for Minute Intestinal Fluke eggs. There was no relationship between personal hygiene and the presence of STH eggs on farmers' nails (p = 0.05). STH eggs were found in the fingernails and toenails of farmers in Kaligondang District, Purbalingga Regency. Farmers need to improve personal hygiene to avoid helminth infections.
Current issues of prevention of moristics and mortality of children and adolescents associated with risk behavior (review)
Authors: Lashkul Z. V. , Chemirisov V. V. , Kurochka V. L. , Motovytsya N. Y. , Yarova L. D.
Published: June 2022

Purpose of the study. To analyze modern literature sources related to the search for
of children and adolescents who are associated with risky behavior.
Materials and methods. Historical and bibliosemantic methods were used to fulfill the purpose of the study. A systematic analysis of works, abstract databases of libraries, statistical and reference materials was carried out. A total of 187 sources. Of these, 99 national and 71 foreign. The review analyzes current issues of medical and social nature regarding the possibilities of improving the prevention of morbidity of children and adolescents associated with risky behavior, and its intersectoral and interdisciplinary integration.
Research results and their discussion. It was found that pronounced negative changes in the health of adolescents associated with risky behavior occur worldwide and have led to serious medical and social consequences - deteriorating reproductive health, limited vocational education, employment, reducing the number of young men fit for military service.
Conclusions. The results became a roadmap for further research on the spread of risk-related behaviors at the regional level and the organization of its prevention.
Evaluation of the Effect of a Combined Gestodene Containing Oral Contraceptive on the Mechanisms of Proliferative Regulation in External Genital Endometriosis
Authors: Гутикова Л.В. , Павловская М.А.
Published: June 2022

В работе представлены результаты иммуногистохимического исследования маркеров экспрессии эстрогеновых рецепторов (ER) и пролиферации (Ki-67) в тканях операционных образцов из очагов наружного генитального эндометриоза у 60 пациентов. Цель исследования – оценка антипролиферативного эффекта гормонального лечения, которое пациенты получали на протяжении 6 месяцев до операции: микродозированного комбинированного орального контрацептива Линдинет 20 («Gedeon Richter»), содержащего этинилэстрадиола 0,02 мг и гестодена 0,075 мг, и аналога гонадотропин-рилизинг-гормонов гозерелина в дозе 3,6 мг/мес. Контрольную группу составили пациенты, которым адъювантную терапию перед операцией не проводили. У пациентов, принимавших перед операцией Линдинет 20, в эктопическом эндометрии наблюдали снижение экспрессии ER в 2 раза, что сопровождалось супрессией эстрогенозависимых сигнальных путей пролиферативных каскадов: снижением индекса пролиферативной активности Ki-67 на 52,4%. Сделан вывод о том, что Линдинет 20, продемонстрировавший хорошие антипролиферативные свойства, может быть успешно применен для долговременной терапии эндометриоидной болезни как самостоятельно, так и в сочетании с оперативным лечением.

The paper presents the results of an immunohistochemical study of markers of estrogen receptor expression (ER) and proliferation (Ki-67) in the tissues of surgical samples from foci of external genital endometriosis in 60 patients. The aim of the study was to evaluate the antiproliferative effect of hormonal treatment that patients received for 6 months before surgery: a microdosed combined oral contraceptive Lindinet 20 ("Gedeon Richter") containing ethinyl estradiol 0.02 mg and gestodene 0.075 mg, and an analog of gonadotropin-releasing hormones goserelin at a dose of 3.6 mg/month. The control group consisted of patients who did not receive adjuvant therapy before surgery. In patients who took Lindinet 20 before surgery, a 2-fold decrease in ER expression was observed in the ectopic endometrium, which was accompanied by suppression of estrogen-dependent signaling pathways of proliferative cascades: a decrease in the index of proliferative activity Ki-67 by 52.4%. It is concluded that Lindinet 20, which has demonstrated good antiproliferative properties, can be successfully used for long-term therapy of endometriodic disease both independently and in combination with surgical treatment.
Chronic Atelectasis of the Maxillary Sinus in Children According to the Data of the Otorhinolaryngologic Department of the Gomel Regional Children’s Clinical Hospital
Authors: Ярошевич А.И. , Ядченко Е.С. , Новик А.В.
Published: June 2022

Введение. В современной литературе все чаще описывается состояние, обусловленное уменьшением в объеме верхнечелюстной пазухи.Цель. На основе литературных данных проанализировать такую редкую патологию, как хронический ателектаз верхнечелюстной пазухи, в том числе и у детей, проходивших лечение в оториноларингологическом отделении Гомельской областной детской клинической больницы.Материалы и методы. В качестве материала послужили данные отечественных и зарубежных литературных источников, а также 4 медицинские карты стационарных пациентов.Результаты. Проанализированы вопросы терминологии, этиопатогенеза, диагностики и лечения данной патологии, а также собственные клинические наблюдения. Заключение. Для постановки диагноза «хронический ателектаз верхнечелюстной пазухи» требуется совокупность клинических и лучевых данных, среди которых наличие гипоплазии верхнечелюстной пазухи с истончением и втяжением ее стенок, что приводит к деформации орбиты. Основной метод лечения – хирургический.

Introduction. Condition caused by a decrease in the volume of the maxillary sinus is increasingly described in modern literature.Purpose. Analyze such a rare pathology as chronic atelectasis of maxillary sinus on the basis of published data, and also in children who were treated in the ENT department of the Gomel Regional Children’s Clinical Hospital.Materials and methods. The material was the data of local and foreign literary sources and also 4 hospital patient records.Results. The issues of terminology, etiopathogenesis, diagnosis and treatment of this pathology as well as own clinical observations have been analyzed.Conclusions. Combination of clinical and X-ray data is needed to diagnose chronic atelectasis of maxillary sinus. The most significant clinical and X-ray data are maxillary sinus hypoplasia with thinning and retraction of its walls, leading to deformation of the orbit. The main method of treatment is surgical.
The Effect of STEAM in Mathematics Learning on 21st Century Skills: A Systematic Literature Reviews
Authors: Pahmi Samsul , Juandi Dadang , Sugiarni Rani
Published: June 2022

The development of a Science, Technology, Engineering, Art, and Mathematics (STEAM)-based learning approach that is implemented with interdisciplinary knowledge has now been widely used in learning and research in mathematics education. However, the use of learning methods and their influence on 21st century skills has not been fully described. To answer these problems, research is to investigate and interpret data on the development and use of appropriate methods in the implementation of STEAM, in particular its impact on mathematics learning and 21st century skills. The author conducted a systematic literature review of published articles to produce a bibliometric review that combines quantitative descriptions of literature content and qualitative analysis of processes, outcomes, and conditions of mathematics learning using the STEAM approach from selected databases between 2012 and 2021. The results of the study used 35 articles from literature relevant to the research objectives. After conducting the analysis, it can be concluded that research related to STEAM, especially in the study of mathematics, has increased significantly in the last 5 years since 2016. From the aspect of 21st century skills, STEAM has a dominant influence in improving problem solving skills and creativity. However, the impact of collaborative and communication skills is still low. In terms of the use of learning methods, STEAM has a significant relationship with the project-based learning (PjBL) method. The results of this study can be used as confirmation material showing that STEAM and PjBL methods are an ideal combination in learning and can also be used as alternative approaches and learning methods to improve problem solving and creative abilities.
Literasi Matematika Berdasarkan Self Efficacy dengan Model Flipped Classroom Menggunakan Asesmen Dinamis
Authors: Atho'illah Ibnu , Kartono Kartono , Masrukan Masrukan
Published: June 2022

Menghadapi pembelajaran jarak jauh di masa pandemi covid-19 guru harus bisa menyesuaikan pembelajaran seefektif mungkin. Penelitian ini bertujuan untuk mengetahui literasi matematika siswa yang Berdasarkan self-efficacy dengan model pembelajaran flipped classroom berbantuan asesmen dinamis. Metode dalam penelitian ini menggunakan mix method dengan menggunakan design embedded concurrent. Subjek penelitian adalah enam siswa di salah satu SMP yang berada di Kutai Timur Kalimantan Timur. Validasi instrumen dinilai oleh dosen ahli literasi matematika dan asesmen dinamis, beserta guru. Instrumen penelitian berupa lembar validasi materi, beserta angket uji coba penelitian. Hasil penelitian menunjukkan bahwa pembelajaran literasi matematika siswa dengan model pembelajaran flipped classroom berbantuan asesmen dinamis lebih baik dari pada siswa dengan model pembelajaran problem based learning dengan pemanfaatan teknologi. Self efficacy sangat berpengaruh terhadap literasi matematika sangat signifikan begitu pula pengelompokan self efficacy tinggi, self efficacy sedang dan self efficacy rendah sangat berpengaruh terhadap literasi matematika siswa.
Analisis Kemampuan Pemahaman dan Penalaran Matematis Siswa Mts Tarbiyah Islamiyah Ulumahuam Kelas VIII Materi Teorema Phytagoras
Authors: Hasibuan Damhuri , Hasibuan Lily Rohanita
Published: June 2022

Penelitian ini bertujuan untuk menganalisis kemampuan pemahaman dan penalaran matematis siswa, khususnya dalam memahami materi teorema phytagoras berkaitan dengan kemampuan pemahamannya. Penelitian dilakukan menggunakan metode kualitatif dengan subjek penelitian adalah siswa kelas VIII sebanyak 20 orang. Teknik pengumpulan data yang digunakan dalam penelitian ini berbentuk tes tertulis kemampuan pemahaman dan penalaran matematis dengan 5 buah soal uraian  dan 3 indikator kemampuan pemahaman dan penalaran matematis. Berdasarkan hasil penelitian yang diperoleh dapat disimpulkan nilai rata-rata dari soal pemahaman dan penalaran matematis dari keseluruhan mencapai 60 menandakan bahwa siswa memiliki kemampuan pemahaman dan penalaran matematis tergolong cukup atau sudah baik.
The Practise of Capability Approach in Child Marriages: The Case of Turkey
Authors: TÜMKAYA Gülşah Selin
Published: June 2022

Restriction of freedoms emerges as an important human development problem in Turkey as well as in the rest of the world. This problem also hinders people’s access to other capabilities, particularly if basic 'capabilities' such as education, health and income, which are important for the development of girls as individuals, cannot be achieved and lead to the ineffective use of developmental inputs by girls. From this point of view, in this study, the problem of child marriage is discussed in the context of talent approach due to the importance of the given situation both in Turkey and the world. Starting from the case of child marriage, the causes and consequences of this problem are boldly emphasized. In addition, within the framework of Nussbaum's capability approach, it is pointed out that in traditionally patriarchal societies, women's capacity was seen as less valuable and limited compared to men. This situation, therefore, might cause gender inequality. The capability approach provides a distinctive framework suggesting that justice in a society should be assessed based on people’s ability to achieve what they have reason to value. Based on perspective, it proposes that the analysing an individuals’ welfare should not be limited to what he or she has as a resource, but what she or he can do and be with this resource since resources are only instruments to achieve ends, or valuable beings and doings. In this study, gender inequality was tried to be highlighted through the interviews which have been done with child brides in the context of the capability approach. Finally, it is emphasized how the capability approach can be applied to the problem of child marriages and suggestions are presented.
GERENCIAMENTO DE PROJETOS DE SUBESTAÇÕES COLETORAS: UM ESTUDO DE CASO DA SUBESTAÇÃO COLETORA CACIMBAS
Authors: Cardoso Alves Andreia
Published: June 2022

This article presents the results of a research that analyzes the project management of the Collecting Substation (SE) Cacimbas, located in the municipalities of Ubajara and Ibiapina, in the state of Ceará and belonging to the Wind Complex Bons Ventos da Serra 2 (BVS 2). The objective is to present the project management methodology and the use of the MS Project support software, during the conception of the planning and follow-up of the Work. The study is based on relevant bibliographies and field survey data. The survey results provide information on the planning preparation and follow-up data that support the importance of project management and the use of MS Project for site managers.
El comercio informal en los espacios públicos de la ciudad de Ambato
Authors: Aguinaga Bósquez Rolando Javier , Saltos Ibarra María Paulina
Published: June 2022

El objetivo del presente trabajo está dirigido a conocer la situación del comercio informal en los espacios públicos de la ciudad de Ambato. La metodología aplicada fue de enfoque cualitativo con un diseño transversal no experimental; se aplicó una encuesta a 1565 personas que realizan actividades laborales, que no están registradas y que circulan alrededor de 10 sectores comerciales de la ciudad. Entre los principales resultados se encontró que los días de venta informal en su mayoría son los lunes, con un 20%; por ello, se obtuvo que el 47% labora el día completo; entre los productos a comercializar se destaca que el 26% vende verduras y hortalizas y el 15% ropa de vestir; por otro lado, los lugares de más comercio fueron la Primero de Mayo y sus alrededores (33%), la Tomas Sevilla (25%) y Mercado Modelo (17%), y la ganancia de un comerciante autónomo no regularizado en el 78% es de $ 50 a la semana. Se concluye que el comercio no regularizado es permanente en todos los días de la semana, pero prevalece los días de feria en la ciudad de Ambato. Además, en lo referente al horario, es prevalente durante todo el día; los productos que más se comercializan son las verduras y hortalizas, seguido de las frutas y productos preparados; el lugar donde más se concentra el comercio es en la zona céntrica de la ciudad.
IVAPTA. Indicadores Virtuales de Alteración Pintura sobre Tela. Alteraciones por familias: anverso y reverso.
Authors: González López María José , Prado Campos Beatriz , Manrique Alcaide Raquel
Published: June 2022

A partir de la fotografía de una pintura sobre lienzo del siglo XVIII afectada por una serie de alteraciones visibles a simple vista, pulsando en cada una de las zonas alteradas, ésta aparecerá en RA, ampliándose la imagen y apareciendo un texto explicativo de cada alteración. Identificando el factor de deterioro, alteración y el efecto que produce en la pintura.

Permite a los alumnos de la asignatura Factores de Deterioro y Alteraciones específicamente, así como de otras asignaturas del Grado de C-R de Bienes Culturales, estudiar y visualizar las alteraciones específicas de las pinturas sobre tela, complementando los apuntes impresos de clase.
Çocukluk çağı hodgkin lenfomalarında CD163 ekspresyonunun prognostik önemi
Authors: ÖZDEMİR Mehmet Emin , Yalçın Özben , Türkkan Emine , Karabıyık Altıok Damla
Published: June 2022

SUMMARY
Aim: In this study, it was aimed to determine the
percentage of not being vaccinated and the reasons for not
being vaccinated among 112 Emergency Health Services
employees.
Material and Methods: 197 healthcare workers'
files were scanned backwards. The effects of various
sociodemographic and other variables (age, gender,
marital status, cases of tetanus, measles, rubella, mumps
vaccinations) were investigated retrospectively by
scanning the files. Calculations were made by applying
chi-square test and logistic regression using windows SPSS
Version 21.0 (SPSS, Inc., Chicago, IL, USA). The study was
conducted on 06.2021 as a retrospective file review.
Results: Of the 197 employees participating in the study,
128(65%) healthcare workers accepted the vaccine, 69
healthcare workers refused the vaccine (35%). Of the 69
people who did not receive the vaccine, 37 (53.6%) were
women, 49 were between the ages of 20-30 (71%), 44
were married (63.8%), and 64 were non-physician health
personnel.(92, 8%). Being married increased the rejection
of vaccines 2.3 times (p = 0.017). Being previously infected
with COVID-19 increased vaccine rejection 2.2 times (p =
0.033).
Conclusion: Even if the number of unvaccinated people
in the study was not in the majority, the finding of this
number among health workers is disappointing for
epidemic disease management. In order to quickly get rid
of this pandemic, the public should be informed about
COVID-19 vaccines by reliable scientists and their fear,
anxiety and reservations should be eliminated. The higher
the number that cannot be persuaded, the less useful the
vaccines will be..
Keywords: COVID-19 vaccines, healthcare professionals,
vaccine hesitancy, safety, efficacy
Portabl pulse oxymetry and contrast echocardiography in hepatopulmonary syndrome diagnosis
Authors: Bozkurt Hüseyin Sancar
Published: June 2022

Amaç: Bu çalışmanın amacı, ortodeoksi semptomu
olan siroz hastalarında hepatopulmoner sendrom (HPS)
tanısının portabl pulse oksimetri ve kontrastlı transtorasik
ekokardiyografi ile araştırılmasıdır.
Materyal ve Metodlar: Çalışmaya siroz tanılı doksan
beş (95) hasta (67/28 E/K) dahil edildi. Hastaların yaş
ortalaması 52,28±12,0 idi. Portabl nabız oksimetresi
ölçümleri, supin pozisyonunda ve oturma pozisyonunda
oda havasını soluyarak elde edildi. Uygun hastaların nazal
kanül ile oksijen tedavisine yanıtları değerlendirildi. Oturur
pozisyonda hipoksemisi (Sa,02<%94) olan hastalarda
kontrastlı transtorasik ekokardiyografi ile HPS incelendi.
Bulgular: HPS olarak tanımlanan sekiz (8) hastada nabız
oksimetrisi ve pozitif kontrastlı ekokardiyografi ile oturur
pozisyonda hipoksemi vardı. Dört hastada (4) tip I HPS ve
dört hastada (4) tip II HPS vardı.
Sonuç: Sonuç olarak 95 (%8,4) hastanın sekizinde HPS vardı.
HPS'li hastalar ileri yaştaydı ve Child B ve C sınıfındaydılar.
Oturur pozisyonda hipoksemisi olan siroz hastalarında
HPS'yi araştırmak için daha ileri çalışmalara ihtiyaç vardır.
Anahtar kelimeler: Hepatopulmoner sendrom, hipoksemi,
nabız oksimetrisi, transtorasik kontrast ekokardiyografi
Tenesmusun nadir bir nedeni: Perirektal lipom
Authors: Kalaycı Tolga
Published: June 2022

Lipom vücudun herhangi bölgesinde ortaya çıkabilen,
yağ dokusunun kapsüllü ve iyi huylu tümörüdür. Genelde
asemptomatik, yumuşak, hareketli kitleler olarak
tanımlanırlar. Perineal lipom nadir görülen bir lipom
bölgesi olup; hastanın oturmasında zorluğa ve rahatsızlık
hissine neden olabilmektedir. Lipom boyutu büyük ise etraf
sinirlerde bası etkisi oluşturarak, zamanla deformasyon
oluşturarak veya sürekli sinir uyarılması nedeni ile
tenesmusa neden olabilmektedir. Çalışmamızda perianal
bölgede ele gelen ve sürekli dışkılama isteği şikâyeti ile
polikliniğe başvuran, muayenede perirektal alanda dev
lipom tanısı konulup, lipom eksizyonu yapılan olgunun
sunumu amaçlanmaktadır.
AVULSÃO DENTÁRIA EM DECORRÊNCIA DE TRAUMATISMO DENTÁRIO EM DENTES DECÍDUOS: REVISÃO INTEGRATIVA DA LITERATURA
Authors: Dantas Noberto Giovana , Teixeira Mendes Brenda , Araújo Pinheiro Luana , José Targino Ribeiro Pedro , Costa de Holanda Rafaela , Gigianne Teixeira e Silva Frank
Published: June 2022

Introdução: O traumatismo dentário ainda figura como um problema de saúde pública de dimensões descomunais, representando uma das causas principais da perda precoce de dentes decíduos, impactando diretamente nos dentes anteriores e posteriores. No caso dos dentes anteriores, as sequelas psicológicas assumem tão ou maior importância do que a fisiológica, uma vez que pode limitar substancialmente a vida dos pacientes nos aspectos fisiológico, fonação, deglutição e emocional. Objetivo: Abordar as condutas terapêuticas no tratamento da avulsão em dentes decíduos. Método: Trata-se de uma revisão integrativa de literatura. O corpus da pesquisa foi baseado em consultas a bases de dados on-line. Foram utilizados estudos indexados nas bases de dados online: PubMed, LILACS e SciELO. Resultados e discussão: Outrossim, os estudos destacaram que o tratamento da avulsão dentária em dentes decíduos é um tema controverso por parte da literatura, demonstrando que parte dos casos apresenta relativo sucesso na terapêutica do reimplante dentário, enquanto os índices de insucesso também são consideráveis, revelando as lacunas em termos do prognóstico, que ainda apresenta inconstância por parte da literatura, embora determinados fatores sejam abordados como decisivos para o sucesso do procedimento. Conclusão: O reimplante de dentes decíduos ainda conta com um prognóstico marcado pela imprecisão para uma parcela significativa dos casos de avulsão dentária. No entanto, ressalta-se a relevância do procedimento enquanto um excelente recurso terapêutico para os casos que são realizados de maneira imediata, em armazenamento em meio adequado, permanência de menos de 30 minutos de fora do alvéolo, além da capacidade do profissional envolvido.

Palavras-chave: Avulsão Dentária, Traumatismo Dentário e Odontopediatria.
Üniversite Öğrencilerinin Uzaktan Eğitime İlişkin Memnuniyet Algıları Üzerine Bir Araştırma
Authors: TALAN Tarık
Published: June 2022

Bu çalışmada, üniversite öğrencilerinin uzaktan eğitime yönelik görüşlerinin değerlendirilmesi ve uygulamaya ilişkin memnuniyetlerin incelenmesi amaçlanmıştır. Araştırmanın katılımcılarını Türkiye’nin Güneydoğu Anadolu bölgesinde bulunan bir üniversitede ortak ve zorunlu olarak verilen dersleri uzaktan eğitimle alan toplam 2224 öğrenci oluşturmaktadır. Araştırma sonunda, öğrencilerin genel olarak uzaktan eğitim derslerini ilgi çekici buldukları ve dersleri uzaktan eğitimle almalarının öğrenmelerinde etkili olduğu sonucuna ulaşılmıştır. Ayrıca öğrenciler ortak derslerin uzaktan eğitim yoluyla alınmasının avantajlı olduğunu belirtmiştir. Araştırmada, öğrencilerin yaşları, bilgisayar kullanma seviyeleri ve günlük bilgisayar kullanım süreleri ile memnuniyet faktörleri arasındaki ilişkinin çok düşük düzeyde, pozitif yönlü ve anlamlı bir ilişki olduğu sonucuna ulaşılmıştır.
Okul Öncesi (5 Yaş) Çocukların Uzunluk Niteliğini Tanıma Becerisine Dair Bir Durum Çalışması
Authors: GÜVEN AKDENİZ Dilşad
Published: June 2022

Araştırmanın amacı okul öncesi dönemdeki çocukların uzunluk niteliğini tanıma becerisinin incelenmesidir. Bu amaçla 5 yaşında bir kız çocuğu olan Merve ile yarı yapılandırılmış klinik görüşmeler gerçekleştirilmiştir. Uzunluk niteliğini tanıma becerisi bağlamında, Merve’nin uzunluğun farklı temsillerine dair kavrayışları, bu temsilleri nesneler üzerinde tanıma, gösterme, tespit etme ve bu temsillere göre nesneleri karşılaştırma becerisi araştırılmıştır. Uzunluk niteliğine ait farklı temsiller-okul öncesi öğretim programı tarafından da amaçlanan uzun-kısa, geniş-dar, kalın-ince, yüksek-alçak, derin-sığ kavramlarından oluşmaktadır. Çalışma nitel desene sahip bir durum çalışmasıdır. İki oturumda tamamlanan klinik görüşmeler yoluyla, ses ve video kaydı ile toplanan veriler içerik analizi yöntemiyle analiz edilmiştir. Elde edilen veriler ışığında, Merve’nin uzun-kısa ve yükseklik temsillerini tanıyabildiği, bu temsillerle doğru karşılaştırmalar yapabildiği ve ilgili terimleri uygun kullandığı söylenebilir. Ancak kalın-ince, geniş-dar, derin-sığ kavramlarını tanıma becerisinin daha çok sezgisel gerçeklere dayandığı ve henüz olgunlaşmamış olduğu gözlemlenmiştir.
Gelecek Beklentilerine Göre Öğretmen Adaylarının Öğrenmeye Yönelik Tutumlarının İncelenmesi
Authors: BAHADIR Ferdi
Published: June 2022

İnsanların yaşamlarını düzenleme ve bazı kararları alma gibi davranışlarında gelecek beklentilerinin önemli bir değişken olduğu düşünülmektedir. Bu araştırmada, gelecek beklentilerine göre öğretmen adaylarının öğrenmeye yönelik tutumları incelenmiştir. Araştırmanın çalışma grubunu üniversite öğrencileri oluşturmaktadır. Verilerin toplanmasında gelecek beklentileri ölçeği ve öğrenmeye yönelik tutum ölçeği kullanılmıştır. Verilerin analizinde t testi, pearson korelasyon analizi ve basit doğrusal regresyon analizi kullanılmıştır. Bulgular, cinsiyetin gelecek beklentisi açısından anlamlı bir değişken olmadığını, öğrenmeye yönelik tutum açsından bakıldığında kadınlar lehine anlamlı olarak farklılaştığını göstermektedir. Bölümden memnuniyetin ise, gelecek beklentisi açsından memnun olanlar lehine anlamlı olarak farklılaştığını, öğrenmeye yönelik tutum açsından anlamlı olarak farklılaşmadığını göstermektedir. Ayrıca öğrencilerin gelecek beklentilerinin, öğrenmeye yönelik tutumlarını önemli derecede yordadığı görülmektedir. Bu bağlamda, gelecek beklentilerinin öğrenmeye yönelik tutum ile ilişkisinde değişkenlerin aracılık rollerini incelemeye yönelik çalışmalar yapılabilir. Geleceğe olumsuz bakan öğrencilerin, bu olumsuzluk nedenlerine dair görüşleri nitel araştırmalarla derinlemesine incelenebilir.
Persepsi Orang Tua Tentang Pendidikan Seks Anak Usia Dini
Authors: Azro’i Imam , Simamora Atikah Triyani
Published: June 2022

This study is conducted to determine the perceptions of parents about early childhood sex  education,  to  describe  the  factors  that  are  predicted  to  influence  parents' perceptions of early childhood sex education in Sri Mulyo Hamlet, Purwodadi Village, Tebing  Tinggi  District,  Tanjung  Jabung  Barat  Jambi  Regency. This   study    used   a   qualitative    descriptive    method    with   a phenomenological  study  approach.  The data collection techniques were obtained from observation, interviews, and documentation.The results of this study indicate that: first, parents have the perception that sex education for early childhood is important to teach, parents argue that by being taught sex education from an early age, children can maintain the privacy of their bodies, can get used to positive things from childhood, understand when in a state of danger or threat, and so that later when child is an adult, the child can understand the pros and cons of sex, so child can be careful in socializing. The  two factors  that are predicted  to  influence  parents'  perceptions  of early childhood sex education are experiences obtained by parents, environmental factors in which parents live, economic factors of parents, and educational factors and parental knowledge about age child sex education early.