bluuebunny/crossref_metadata_2025 huggingface dataset:
Sonographic Measurement of the Thickness of Subcutaneous Tissue and Hepatic Echo-Intensity Attenuation Rate in Nonalcoholic Fatty Liver Disease
Authors: Khammas Abdul Sattar Arif , Abu Hassan Hasyma , Mohammed Salih Sarah Qahtan , Shahar Hayati Kadir , Ibrahim Ramlah Mohamed , Nasir Nurul Nadiah Mohamed , Mahmud Rozi
Published: November 2021

The most common cause of the chronic liver disease is non-alcoholic fatty liver disease (NAFLD). This study was designed to compare a mean subcutaneous tissue thickness (SCTT) and hepatic echo-intensity attenuation rate (HEIAR) among NAFLD grades. Sonography was carried out on 628 consecutive subjects. The distance between the skin surface and the liver capsule was measured and was labelled the SCTT. Also, the ultrasound of HEIAR was retrospectively quantified on an image archiving. HEIAR was calculated as the difference between mean intensity of echo for two regions of interest (ROIs) in near- and far-fields divided by the distance between these two ROIs multiply by frequency of the probe. Of the 628, 235 subjects were diagnosed with NAFLD. The age range was 45 – 75 years with mean 54.5 ± 6.7 years. There was a significant difference of mean SCTT among NAFLD grades (p<0.001), 65.4% of subjects with SCTT measured ≥ 2.1 cm had NAFLD versus 34.6% of subjects had no NAFLD. Similarly, the differences of mean HEIAR among NAFLD grades were reported to be statistically significant (p<0.001). All of the subjects with HEIAR of 1. 7dB/cm MHz and over had NAFLD. HEIAR is a useful indicator for non-invasive quantitative assessment of NAFLD where sonographically measured HEIAR equal to or over than 1.7 dB/cm MHz makes identifying NAFLD is probably (sensitivity is 59% and specificity is 89%). HEIAR is a useful indicator for non-invasive quantitative assessment of NAFLD.
Prevalence of Obesity and Correlated Hypertension and Hyperglycaemia Status among Participants of a Health Screening Programme in Inanam Sub-District, Kota Kinabalu, Sabah, Malaysia
Authors: Zarkasi Khairul Anwar , Ramli Nur Zuliani , Gopal Vennila , Shimmi Sadia Choudhury , Miranda Anne Lolita , Wan Saudi Wan Salman , Sunggip Caroline
Published: November 2021

Obesity is a known risk factor for non-communicable diseases, including hypertension and diabetes mellitus, with Malaysia having the highest prevalence of obesity among Southeast Asian countries. Additionally, the delivery of medical services to the rural communities remains challenging despite efforts to increase accessibilities to the healthcare facilities. Therefore, regular health screening programmes specifically aiming at these communities are necessary for early diagnosis and intervention to prevent complications while improving the patients’ quality of life. A health screening programme was conducted in a sub-district of Kota Kinabalu, Sabah, Malaysia, where 50 participants were examined for general obesity based on body mass index (BMI) together with central obesity according to waist circumference (WC) and waist-to-hip ratio (WHR). Bioelectrical impedance analysis was performed to estimate body fat percentage (fat%) and body fat mass, along with the measurement of systolic blood pressure (SBP), diastolic blood pressure (DBP), and capillary blood glucose. The median age of the participants was 39.50 years. The prevalence of general obesity, central obesity based on WC and WHR, hypertension, and hyperglycaemia was 28%, 78%, 74%, 24%, and 20%, respectively. Both fat% and fat mass had positive correlations to the BMI (fat%: r = 0.656, p = 0.001; fat mass: r = 0.868, p = 0.001) and WC (fat%: r = 0.505, p = 0.001; fat mass: r = 0.761, p = 0.001). DBP had positive correlations with the BMI (r = 0.390, p = 0.005), WC (r = 0.467, p = 0.001), and WHR (r = 0.331, p = 0.019), while SBP had a positive correlation only with WC (r = 0.341, p = 0.015). Conversely, capillary blood glucose had no significant correlation with either BMI, WC, or WHR. The higher prevalence of central obesity among participants of the health screening program compared to the national level should raise concern among the healthcare providers regarding the future risk for hypertension and hyperglycaemia in this community.
Near-miss Injury of Multiple Carpometacarpal Joint Dislocations: A Report of Two Cases
Authors: Kow Ren Yi  , Zaharul Azri Mustapha Zakaria  , Ruben Jaya Kumar  , Low Chooi Leng  , Khairul Nizam Siron Baharom
Published: November 2021

Multiple carpometacarpal joint (CMCJ) dislocations are rare and are easily missed. The anatomical configuration renders stability to the joints. As a result, a high-velocity impact is required to dislocate the joint. We present two cases of multiple carpometacarpal joint dislocations with different mechanisms of injury and their subsequent management at our centre. In case 1, a 29-year-old gentleman presented with acute dislocations of the CMCJs involving the right middle, ring, and little fingers. An open reduction and fixation with Kirschner wires were done to stabilize the dislocated CMCJs and he subsequently recovered. In case 2, a 25-year-old gentleman had the CMCJ dislocations detected late due to other more profound injuries. Partial arthrodesis was performed to address the instability of the CMCJs of the right index, middle and ring fingers. He subsequently recovered and returned to work 6-months postoperatively. The diagnosis of carpometacarpal joint dislocation can be easily missed especially when there is a concurrent distracting injury. It is crucial to maintain a high index of suspicion as early diagnosis and prompt treatment is paramount to yield a better outcome.
Lessons We Learned from the COVID-19 Outbreak
Authors: Kamruddin Ahmed
Published: November 2021

The emergence of coronavirus disease 2019 (COVID-19) did not only cause a devastating effect on every corner of society but also taught us many important lessons. One of the lessons is on the importance of the principles of public health. We have seen this repeatedly in recent years during the emergence of SARS, Ebola, MARS and Nipah (Ahmed et al., 2019). The principles of public health have been effective in controlling these infections and we are confident that COVID-19 will be under control using these simple measures. As health professionals, we must set examples by following preventive measures, i.e. wearing mask properly, safe distancing and washing hands, to prevent and control the spread of COVID-19. Unfortunately, there is an erroneous concept in these measures however, therefore, cooperation of everybody in the community is necessary to overcome them.
Guillian Barre syndrome epidemiology presentation and outcome
Authors:   FIBMS Pediatrics, Al-Elwiya pediatric teaching hospital, Baghdad- Alrusafa/Health Directorate, Ministry of Health and Environment, Baghdad, Iraq, Hussain Dr.Raed jabbar , Al-Qazzaz Dr. Rahan Assim Mohammed ,   CABMS pediatrics, alsheikhan general hospital., Abdullah Kahtan Adnan ,   Senior pediatrician F.I.B.M.S,JAR pediatric teaching hospital Suliamania
Published: November 2021

Background Guillain Barre syndrome (GBS) is most common cause of acute flaccid paralysis, affect peripheral nerves with distinctive features clinical, pathological and prognosis. Patient and methods this study is prospective of 60 patients admitted at al-kadymia teaching hospital from first January 2004 to end April 2009. Age includes 1 to ≤11 years. Diagnosis was by clinical examination and confirmed by CSF tests and nerve conduction velocity study. Results It was found that 32 patients were male and 28 were female. Cranial nerves involved in 30% of patients. Sensory symptoms found in 16%. CSF changes was seen in 85.5% patients. Antecedent events were found in 27 patients out of 60, 14 had history of upper respiratory tract infection 45%, 7 had gastroenteritis 11%, 6 patients had history of fever 3 weeks earlier 10% and 15 patients had complicated by respiratory failure managed by mechanical ventilators, During this study 4 patients had been died. Conclusions: Current study conclude about 45% of patients had history antecedent events in as upper respiratory tract infection , gastroenteritis and fever, so cerebrospinal fluid CSF cell in the majority of cases within normal range and mostly lymphocytes, Cranial nerves were affected in most patients without serious sequels so Steroid was not given to most of patients in our study without any significant effect on the course of disease , Hospitalization was range from 2 week to 4 week, Recovery was range from 4 to 12 week and Death rate was 6% .
Intimate Partner Violence among Sample of Married Women Attending Primary Health Care Center in Al-Russafa Sector, 2018
Authors:   M.B.Ch.B/FICMS/ Family Medicine Specialist in Ali Al-Garawi PHC for family medecine., Al-Deen Dr. Noor Safaa , Ali Hasan Dr. Lamyaa ,   M.B.Ch.B/FICMS/F.M consultant Family Medicine in Almustanseryia PHC training center for family medicine., Talib Dr. Mushtaq ,   M.B.Ch.B/FICMS/F.M consultant Family Medicine in Almustanseryia PHC training center for family medicine.
Published: November 2021

Background: Violence against women is a universal phenomenon that persists in all countries of the world. It’s not limited to cultural, geographic, religious, social, economic or national boundaries. therfore aimed of study was Explore the prevalence of IPV against married women attending the primary health care centers (PHCs) of Al Ressafa Sector. Methods: Cross-sectional study with analytic component was carried out on total of 200 women attending in the PHCCs in Al Ressafa Sector during period March- June 2018. A modified version of WHO domestic violence questionnaire was used for the direct interview in this study. All married women attended the PHCCs and meeting the eligibility criteria were informed about the purpose of the study. Results: Out of the total sample (200) the results demonstrated that the overall prevalence of violence was (80%); the emotional violence is the most frequent type of domestic violence followed by controlling behavior type (43.5%), physical violence (36.5%), economic violence (30%), and sexual violence (18%). Conclusions: The majority of women were victims of IPV, and most common type was the emotional violence, followed by controlling behavior. The high rate of IPV need for enacting & enforcing a national law to combat domestic violence & screening primary health setting to identify victims of IPV in order to prevent these abuses & associated unnecessary physical & mental disability.
Gut gerüstet auf die Skipiste
Authors: Reckter Bettina
Published: November 2021

Wintersport: Steht der Winter vor der Tür, denken viele an den Skiurlaub. Vielleicht ist ja eine neue Ausrüstung fällig? Hier haben wir Neuheiten für die Skipiste zusammengestellt, die jeweils als Produkt des Jahres mit dem ISPO Award 2021 ausgezeichnet wurden. Von Bettina Reckter
Inteligencias múltiples y rendimiento académico Área de Matemáticas en estudiantes de Primer Grado en la Institución Educativa UGEL 04 Comas, Lima, 2018
Authors: Claudio Salas Zaida América , Campana Concha Abelardo Rodolfo
Published: November 2021

Objetivo: Identificar la relación entre las inteligencias múltiples y el rendimiento académico en el Área de Matemáticas en estudiantes de Primer Grado en la Institución Educativa UGEL 04 Comas, Lima, 2018. Materiales y Método: Es un estudio de tipo correlacional que incluyó un cuestionario y test de conocimientos para sus variables 1 y 2, respectivamente, aplicados a una muestra de 68 estudiantes, y procesados estadísticamente con el programa SPSS. Resultados: La hipótesis general identificó una correlación buena de Rho = .782 entre las dos variables, dando cuenta que las inteligencias múltiples aplicadas mayoritariamente casi siempre consiguen que su rendimiento alcance el logro previsto en el área de matemáticas. Las estadísticas también confirmaron la relación entre la inteligencia lingüística, matemática, espacial, física cinestésica, musical, interpersonal e intrapersonal ; y el rendimiento académico en el área de matemática. Conclusión: La frecuencia en la que se realizan actividades para desarrollar este tipo de inteligencias resultan insuficientes para que los estudiantes alcancen las máximas calificaciones.
ASPECTS OF THE FORMATION OF A COMFORTABLE URBAN ENVIRONMENT
Authors:   International Educational corporation (KazGASA campus), Almaty, Kazakhstan, Aimagambetova Z.T. , Ibraeva Zh.B. ,   International IT University, Almaty, Kazakhstan
Published: November 2021

The article touches upon the issues of ensuring openness, security, resilience, and environmental sustainability of cities. The authors come to the conclusion that in order to ensure a high quality of life for citizens and sustainable ecology, it is necessary to competently design cities, create a developed natural and ecological framework. In addition, it is noted that students, as future specialists, are in a fruitful search for design, for example, through color solutions.
TRANSFORMATION AND ADAPTATION IN MODERN ARCHITECTURE
Authors:   Satpayev University, Almaty, Kazakhstan, Тоlep А.Т. , Balykbaev B.T. ,   Satpayev University, Almaty, Kazakhstan
Published: November 2021

Transformable elements, objects, and architecture have long been used by people for various purposes. The analysis of the development of transformable systems shows that it is impossible to design using simple static structures, and the need to create new structures is solved. This article discusses the relationship between art, technology, and technology in architecture, changing architectural objects and systems, the quality of compliance, and adaptation to constantly changing functional requirements.
ARCHITECTURAL AND PLANNING ORGANIZATION OF EMBANKMENTS IN THE LARGEST CITIES OF SOUTH KAZAKHSTAN
Authors:   International Educational Corporation (campus KazGASA), Almaty, Kazakhstan, Tuyakaeva A.K. , Kerimova K.D. ,   International Educational Corporation (campus KazGASA), Almaty, Kazakhstan
Published: November 2021

This article discusses the main problems of the embankments of the territories of Almaty and Shymkent. The authors proposed conceptual models and project proposals for the architectural and planning organization of the embankments, and give recommendations for improving the environment of coastal areas.
RIGIDITY DIAPHRAGM OF HIGH-RISE BUILDINGS WITH ASYMMETRICALLY POSITIONED DOORWAYS
Authors:   International Educational Corporation, Almaty, Kazakhstan, Aldenbek R.K. , Yelzhanov E.A. ,   International Educational Corporation, Almaty, Kazakhstan, Baynatov Zh.B. ,   Kazakh National Research Technical University named after K. I. Satpayev, Almaty, Kazakhstan
Published: November 2021

To increase the strength of the stiffness diaphragm, the doorways are not arranged symmetrically in height, i.e. in staggered order. Thus, excessive flexibility of the diaphragm is partially eliminated. To perform the calculation of such an irregular system relative to the openings causes a certain difficulty and from that we have implemented an elementary calculation. The design scheme was considered as a multi-story frame, for the action of horizontal wind load and floor-by-floor two-span beams with variable cross-sections on hinged supports for the action of vertical loads. The tasks were solved by the force method and graphoanalytically. Methods for determining the bending stiffness of the diaphragm from various loads are considered.
ANALYSIS OF THE MAIN FACTORS AFFECTING THE QUALITY OF RESTORATION WORK OF CONCRETE AND REINFORCED CONCRETE STRUCTURES
Authors:   International Educational Corporation (campus KazGASA), Almaty, Kazakhstan, Aubakirova B.M. , Onlasynov E.R. ,   International Educational Corporation (campus KazGASA), Almaty, Kazakhstan
Published: November 2021

This article examines the analysis of the main factors affecting the quality of the restoration work of concrete and reinforced concrete structures. The ways of increasing the capacity of repair concrete by increasing the adhesion strength are shown. As a result, its value should not be lower than the tensile strength of concrete.
SNOW AVALANCHES ON THE SEREBRYANSKAYA DISTANCE OF THE WAY
Authors:   Academy of Logistics and Transport, Almaty, Kazakhstan, Ibraimov A.K. , Kurbenova A.K. ,   Kazakh National Research Technical University named after K.I. Satpayev,  Almaty, Kazakhstan, Seitkazinov O.D. ,   International Educational Corporation, Almaty, Kazakhstan
Published: November 2021

This article presents the probability of avalanche formation, possible damages depending on the volume of the avalanche, the volume of snow avalanches, the type of snow avalanches, slope angle, slope roughness, snow cover height. The analysis of conditions and factors accompanying such a natural disaster as snowfalls and snowdrifts on the railway is made. Effective ways of dealing with snowdrifts on the railway are highlighted.
DETERMINATION OF LOADS FOR CALCULATION OF STRENGTH CHARACTERISTICS OF STRUCTURAL ELEMENTS OF FACADES
Authors:   International Educational corporation, Almaty, Kazakhstan, Musatay Zh.M. , Polyakova I.M. ,   International Educational corporation, Almaty, Kazakhstan
Published: November 2021

This article discusses the possible loads that will affect the elements of the facade coatings of buildings. Various types of facade slabs, claddings, ice, wind loads, loads from various types of guides for fastening the slabs are considered. The standard and design loads were determined, taking into account the Eurocodes, the loads for the calculations were selected.
DISASSEMBLY TECHNOLOGY
Authors:   L.N. Gumilyov ENU, Nur Sultan, Kazakhstan, Тolkynbayev T. , Sivachenko L. ,   Belarusian-Russian University, Mogilev, Belarus, Utepbergenova L. ,   L.N. Gumilyov ENU, Nur Sultan, Kazakhstan, Abdukalikova G. ,   L.N. Gumilyov ENU, Nur Sultan, Kazakhstan, Eleusinova Y. ,   L.N. Gumilyov ENU, Nur Sultan, Kazakhstan
Published: November 2021

The article provides a scientific justification of energy and resource-saving reserves that are not taken into account and are available for the implementation of industry, modernization of fixed assets and mastering the production of high-level products. They were evaluated on the basis of systematic industry analysis of technological divisions of processing of raw materials and materials. The energy-saving potential of the most expensive technological complexes is scientifically justified. The main result of the article is a description of the improvement of technical devices by developing innovative art achievements for the comprehensive processing of various materials and obtaining the necessary products to meet human needs.
The USE OF COOPERATIVE LEARNING MODEL NUMBERED HEADS TOGETHER AND REALISTIC MATHEMATICS EDUCATION IN TEACHING MATHEMATICS
Authors: Widyaningrum Ismi
Published: November 2021

The purpose of this study was to determine the effectiveness of cooperative learning model numbered heads together and realistic mathematics education. This type of research was a Classroom Action Research. These activities were conducted in two cycles. At first cycle, learning was carried out using NHT learning model and realistic mathematics education. Then the second cycle was carried out to fix anything that wasn’t right. The results of this study were increasing the percentage of students learning, from 34,5% in Pre Cycle, to 75,86% at the end of Cycle I, and became 93,1% at the end of Cycle II. Another improvement occurred in the activities of students and teachers. All of these improvements are certainly due to the presence of improvements during the learning process carried out by teachers and researcher over the last two cycles. The conclusion of this study is that cooperative learning with Numbered Heads Together Model and Realistic Mathematics Education can improve learning achievement in teaching mathematics.
ПРОФЕСІЙНА ДЕФОРМАЦІЯ СПІВРОБІТНИКІВ КАРНО-ВИКОНАВЧОЇ СИСТЕМИ
Authors: Астремська Ірина Володимирівна
Published: November 2021

Стаття присвячена проблемі професійної деформації співробітників карно-виправних установ, яка є предметом вивчення науки, що активно розвивається, – пенітенціарної психології. Окреслені фактори професійної деформації співробітників правоохоронних органів, у тому числі й виконавчих установ; виділені загальні професійні деформації та підходи до їх вивчення. Запропоновано комплекс психодіагностичного інструментарію для вивчення особливостей професійної деформа- ції співробітників пенітенціарних установ. Доведено, що співробітники пенітенціарної системи відрізняються висо- ким рівнем комунікативного контролю, ворожості (підозрілості й образи) і індексу агресивності (роздратованості, фізичної та вербальної агресії); переважають ті ж показники в співробітників інших сфер діяльності. Уявлення про роботу на когнітивному рівні відрізняються усвідомленістю, на емоційному – позитивним відношенням до роботи, на поведінковому – необхідністю роботи. Професійно-моральна деформація співробітників виконавчих установ являє собою системну кризу особистості, пов’язану з впливом зовнішніх і внутрішніх факторів, подолання яких повинно бути метою для розробки корекційно- відновлювальних програм як профілактики, так й подолання зазначеної проблеми. Доведено, що профдеформація є комплексним явищем, яке зачіпає всі сфери діяльності співробітника (робота, сім’я тощо). Вона виникає в ході виконання професійної діяльності й має негативний вплив на виконання співробітни- ками службових обов’язків. З огляду на чинники, що призводять до появи профдеформації та перешкоджають її розви- тку, можна ефективно проводити профілактику такого явища в пенітенціарній системі. Дослідження має позитивне значення та може бути використано під час розробки рекомендацій співробітникам пенітенціарних установ, які повинні самі змінювати стиль взаємодії з колегами по роботі й з іншими людьми, щоб уникнути деструктивного впливу професійно-моральної деформації.
АНАЛІЗ ІСНУЮЧИХ ПІДХОДІВ ЩОДО ВИЗНАЧЕННЯ ПРОФЕСІЙНО-ПСИХОЛОГІЧНОЇ КОМПЕТЕНТНОСТІ ВІЙСЬКОВОСЛУЖБОВЦІВ НАЦІОНАЛЬНОЇ ГВАРДІЇ УКРАЇНИ
Authors: Мілорадова Наталя Едуардівна , Шевченко Вікторія Василівна
Published: November 2021

У статті здійснено аналіз сучасних тенденцій щодо структури професійно-психологічної компетентності у вітчизняному науковому просторі. Особливу увагу приділено саме професійно-психологічній компетентності тому, що вона є інтегральною професійно-особистісною характеристикою військовослужбовців Національної гвардії Украї- ни. Саме в цій компетентності поєднуються теоретична й практична готовність до виконання професійної діяльнос- ті, а також суб’єктивні особливості фахівця, які забезпечують ефективність управлінської діяльності підрозділами. На основі аналізу наукових підходів щодо дослідження структури професійно-психологічної компетентності май- бутніх фахівців, професіограми командира підрозділу й особливостей військової діяльності в статті здійснено визна- чення структури й змісту професійно-психологічної компетентності військовослужбовців Національної гвардії Украї- ни. Розглянуті основні компоненти, які входять до структури професійно-психологічної компетентності. До таких компонентів належать: мотиваційний компонент, в якому головне – це мотивація та відношення військовослужбовця до виконання професійної діяльності, потреба й бажання постійно розвиватися та здобувати нові знання, а також підвищувати свій професійний рівень; комунікативний компонент – це здатність встановлювати й налагоджувати, а також підтримувати взаємостосунки з іншими людьми; когнітивний компонент – це здатність критично й само- стійно мислити незалежно від ситуації; операційний компонент – це здатність адаптуватися до нових, навіть важких умов діяльності, а також володіння професійними знаннями, уміннями й навичками для успішного виконання професійних завдань; емоційно-вольовий компонент – це здатність військовослужбовця до самоконтролю, до самона- віювання задля досягнення поставленої мети, подолання сумнівів, страхів, несення відповідальності за свою діяльність і діяльність своїх підлеглих.
Kinds of Democracy: New Models of Federal Republics and Multi-Level Governments
Authors: Stevens Christopher Portosa
Published: November 2021

In “Kinds of Democracy,” I vary the kind of democracy across levels in multi-level governments and federations. Varying the kind of democracy from level to level produces new competitive structures (and also new kinds of political complexity), such as producing opportunity structures for political parties to move up or down in a federation or multi-level government. Varying the kind of democracy from level to level also partly resembles some of the irregular and complex political forms of city-state republics of ancient Greece and early modern Italy, particularly compared to more standardized forms of democracy in the contemporary world. Varying the kind of democracy from level to level is also a new kind of response to the “iron law of oligarchy,” since it is a way of increasing the competitive and democratic nature government by creating new opportunity structures for political competition between political parties, and new opportunity structures for organizational differentiation and competition across governmental and societal levels.

I also discuss some practical applications of designing new models of constitutions based on varying the kind of democracy from level to level. These include the potential for remedying violent conflict by creating opportunity structures for cross-cutting alliances by political parties across regions, across national and regional divides, and also across possible ethnic, religious, linguistic, and ideological cleavages within and across regions.
Russia, the Arctic and Northeast Asia: The Strategic Importance of the Far North
Authors: Contreras Luna Rafael
Published: November 2021

Historically, the Arctic has been much more important to Russia than to other Arctic countries. In Soviet times, the development of the Arctic was of paramount importance and it was used by the Soviet government to legitimise its great power status to domestic and international audiences. It is argued in this paper that the administration of President Putin has re-established a narrative on Russia as an Arctic power. In this sense, Russia not only seeks to exploit natural resources and develop the Northern Sea Route, but to project status as it conceives of itself as a great power. This paper suggests that the Arctic is not only becoming more important for Russia itself but also for Northeast Asian countries, as China, Japan and South Korea require a stable regional environment and secure supply of natural resources, which are essential for their prosperity and stability. In this sense, diverse partnerships are being developed between Russian and Northeast Asian countries; this work analyses the key components of those partnerships and its potential benefits. The development of the Far North constitutes an essential component in Russia’s larger and long-term project to develop Asiatic Russia. It would be fallacious to examine Russia’s Arctic strategy only through the prism of the current confrontation between Russia and the West. Keywords: Russia, great power, Arctic, Far North, Northeast Asia, China, Japan, South Korea.
PENGARUH SIKAP DAN KEMAMPUAN AKSES INTERNET TERHADAP HASIL BELAJAR KIMIA PESERTA DIDIK SMA NEGERI 6 KUPANG
Authors: TIKA MARSELINUS
Published: November 2021

The purpose of the study was to determine the effect of attitudes and internet access abilities on students' learning outcomes in Chemistry. This research is a quantitative study, using a survey method. The survey was conducted on a sample of 104 students of class XII MIPA SMA Negeri 6 Kupang. The data was collected by giving a questionnaire and by carrying out a test of chemistry learning outcomes. The results showed that the attitude variables in chemistry subjects and the ability to access the internet for online learning media together had a significant influence on students' chemistry learning outcomes. This is indicated by the coefficient of determination R2 = 0.790 with a constant test value (0.470). While the test of each regression coefficient of the attitude variable in chemistry subjects obtained a regression coefficient of (0.496) and the variable of internet access ability (0.516). From these results, it can be concluded that the attitudes and abilities of internet access for online learning media together have a significant influence on students' learning outcomes of chemistry.
ABSTRAKTujuan dari penelitian adalah untuk mengetahui pengaruh sikap dan kemampuan akses internet terhadap hasil belajar Kimia peserta didik.Penelitian ini merupakan penelitian kuantitatif, menggunakan metode survei.Surve. Pengumpulan data dilakukan dengan pemberian kuesioner dan dengan melaksanakan test hasil belajar Kimia. Hasil penelitian menunjukkan bahwa variabel sikap pada mata pelajaran kimia dan kemampuan akses internet untuk media pembelajaran online secara bersama-sama memiliki pengaruh yang signifikan terhadap hasil belajar kimia peserta didik. Hal ini ditunjukkan oleh koefisien determinasi R2 = 0,790 dengan nilai uji constant (0,470). Sementara uji masing-masing koefisien regresi variabel sikap pada mata pelajaran kimia diperoleh koefisien regresi sebesar (0,496) dan variabel kemampuan akses internet (0,516). Dari hasil tersebut diperoleh kesimpulan bahwa sikap dan kemampuan akses internet untuk media pembelajaran online secara bersama-sama memiliki pengaruh yang signifikan terhadap hasil belajar Kimia peserta didik.
Field testing two flux footprint models
Authors: Coates Trevor W. , Alam Monzurul , Flesch Thomas K. , Hernandez-Ramirez Guillermo
Published: November 2021

Abstract. A field study was undertaken to investigate the accuracy of two
micrometeorological flux footprint models for calculating the gas emission
rate from a synthetic 10 × 10 m surface area source, based on the vertical
flux of gas measured at fetches of 15 to 50 m downwind of the source.
Calculations were made with an easy-to-use tool based on the Kormann–Meixner
analytical model and with a more sophisticated Lagrangian stochastic
dispersion model. A total of 59 testable 10 min observation periods were
measured over 9 d. On average, both models underestimated the actual
release rate by approximately 30 %, mostly due to large underestimates at
the larger fetches. The accuracy of the model calculations had large
period-to-period variability, and no statistical differences were observed
between the two models in terms of overall accuracy.
Water vapor estimation based on one-year data of E-band millimeter-wave link in the northeast of China
Authors: Zheng Siming , Huo Juan , Cai Wenbing , Zhang Yinhui , Li Peng , Zhang Gaoyuan , Ji Baofeng , Zhou Jiafeng , Han Congzheng
Published: November 2021

Abstract. The amount of water vapor in the atmosphere is very small, but its content varies greatly in different humidity areas. The change of water vapor will affect the transmission of microwave link signals, and most of the water vapor is concentrated in the lower layer, so the water vapor density can be measured by the change of the near-ground microwave link transmission signal. This study collected one-year data of the E-band millimeter-wave link in Hebei, China, and used a model based on the ITU-R to estimate the water vapor density. An improved method of extracting the water vapor induced attenuation value is also introduced. It has a higher time resolution and the estimation error is lower than the previous method. In addition, this paper conducts the seasonal analysis of water vapor inversion for the first time. The monthly and seasonal evaluation index results show a high correlation between the retrieved water vapor density the actual water vapor density value measured by the local weather station. The correlation value for the whole year is up to 0.95, the root mean square error is as low as 0.35, and the average relative error is as low as 0.05. This research shows that millimeter-wave backhaul link provides high-precision data for the measurement of water vapor density and has a positive effect on future weather forecast research.
Age and driving mechanisms of the Eocene–Oligocene transition from astronomical tuning of a lacustrine record (Rennes Basin, France)
Authors: Boulila Slah , Dupont-Nivet Guillaume , Galbrun Bruno , Bauer Hugues , Châteauneuf Jean-Jacques
Published: November 2021

Abstract. The Eocene–Oligocene Transition (EOT) marks the onset of
the Antarctic glaciation and the switch from greenhouse to icehouse
climates. However, the driving mechanisms and the precise timing of the EOT
remain controversial mostly due to the lack of well-dated stratigraphic
records, especially in continental environments. Here we present a
cyclo-magnetostratigraphic and sedimentological study of a ∼ 7.6 Myr long lacustrine record spanning the late Eocene to the earliest
Oligocene, from a drill core in the Rennes Basin (France).
Cyclostratigraphic analysis of natural gamma radiation (NGR) log data yields
duration estimates of Chrons C12r through C16n.1n, providing additional
constraints on the Eocene timescale. Correlations between the orbital
eccentricity curve and the 405 kyr tuned NGR time series indicate that 33.71 and 34.10 Ma are the most likely proposed ages of the EO boundary.
Additionally, the 405 kyr tuning calibrates the most pronounced NGR
cyclicity to a period of ∼1 Myr, matching the g1–g5 eccentricity term,
supporting its significant expression in continental depositional
environments, and hypothesizing that the paleolake level may have behaved as
a low-pass filter for orbital forcing. Two prominent changes in the
sedimentary facies were detected across the EOT, which are temporally
equivalent to the two main climatic steps, EOT-1 and Oi-1. We suggest that
these two facies changes reflect the two major Antarctic cooling/glacial
phases via the hydrological cycle, as significant shifts to drier and cooler
climate conditions. Finally, the interval spanning the EOT precursor glacial
event through EOT-1 is remarkably dominated by obliquity. This suggests
preconditioning of the major Antarctic glaciation, either from obliquity
directly affecting the formation/(in)stability of the incipient Antarctic Ice
Sheet (AIS), or through obliquity modulation of the North Atlantic Deep
Water production.
Baseline data for monitoring geomorphological effects of glacier lake outburst flood: a very-high-resolution image and GIS datasets of the distal part of the Zackenberg River, northeast Greenland
Authors: Tomczyk Aleksandra M. , Ewertowski Marek W.
Published: November 2021

Abstract. The polar regions experience widespread transformations, such that efficient
methods are needed to monitor and understand Arctic landscape changes in
response to climate warming and low-frequency, high-magnitude hydrological
and geomorphological events. One example of such events, capable of causing
serious landscape changes, is glacier lake outburst floods. On 6 August 2017, a flood event related to glacial lake outburst affected the Zackenberg
River (NE Greenland). Here, we provided a very-high-resolution dataset
representing unique time series of data captured immediately before (5 August 2017), during (6 August 2017), and after (8 August 2017) the flood.
Our dataset covers a 2.1 km long distal section of the Zackenberg River. The
available files comprise (1) unprocessed images captured using an unmanned
aerial vehicle (UAV; https://doi.org/10.5281/zenodo.4495282, Tomczyk and Ewertowski, 2021a) and (2) results of structure-from-motion (SfM) processing (orthomosaics, digital elevation
models, and hillshade models in a raster format), uncertainty assessments
(precision maps), and effects of geomorphological mapping in vector formats
(https://doi.org/10.5281/zenodo.4498296, Tomczyk and
Ewertowski, 2021b). Potential applications of the presented dataset include
(1) assessment and quantification of landscape changes as an immediate
result of a glacier lake outburst flood; (2) long-term monitoring of
high-Arctic river valley development (in conjunction with other datasets);
(3) establishing a baseline for quantification of geomorphological impacts
of future glacier lake outburst floods; (4) assessment of geohazards related
to bank erosion and debris flow development (hazards for research station
infrastructure – station buildings and bridge); (5) monitoring of
permafrost degradation; and (6) modelling flood impacts on river ecosystem,
transport capacity, and channel stability.
Full scale experiments to examine the role of deadwood on rockfall dynamics in forests
Authors: Ringenbach Adrian , Stihl Elia , Bühler Yves , Bebi Peter , Bartelt Perry , Rigling Andreas , Christen Marc , Lu Guang , Stoffel Andreas , Kistler Martin , Degonda Sandro , Simmler Kevin , Mader Daniel , Caviezel Andrin
Published: November 2021

Abstract. Forests are rockfall-protective ecological infrastructures, as a significant amount of kinetic energy is absorbed during consecutive rock-tree impacts. Although many recent works have considered rock impacts with standing trees, the effect of lying deadwood in forests has not yet been considered thoroughly, either experimentally or numerically. Here, we present a complete examination of induced rockfall experiments on a forested area in three different management stages. The trilogy is conducted in a spruce forest stand (i) in its original state, (ii) after a logging operation with fresh, lying deadwood and (iii) after the removal of the deadwood. The tests allow us to directly quantify the effect of fresh deadwood on overall rockfall risk for the same forest (slope, species) under three different conditions. The study yields quantitative results on the barrier efficiency of the deadwood logs as only 3.6 % of the rocks surpass the deadwood section. The mean runout distance is reduced by 42 %. Conversely, the runout distance increases by 17 % when the cleared stand is compared to the original forest. These results quantitatively confirm the benefits of nature-based mitigation measures integrated into forestry practice and we show how modern rockfall codes can be extended to incorporate such complex, but realistic forest boundary conditions.
Multiple hazards and risk perceptions over time: the availability heuristic in Italy and Sweden under COVID-19
Authors: Di Baldassarre Giuliano , Mondino Elena , Rusca Maria , Del Giudice Emanuele , Mård Johanna , Ridolfi Elena , Scolobig Anna , Raffetti Elena
Published: November 2021

Abstract. The severe impact of global crises, such as COVID-19 and climate change, is plausibly reshaping the way in which people perceive risks. In this paper, we examine and compare how global crises and local disasters influence public perceptions of multiple hazards in Italy and Sweden. To this end, we integrate information about the occurrence of hazardous events with the results of two nationwide surveys. These included more than 4000 participants and were conducted in two different phases of the COVID-19 pandemic corresponding to low (August 2020) and high (November 2020) levels of infection rates. We found that, in both countries, people are more worried about risks related to experienced events. This is in line with the cognitive process known as the availability heuristic: individuals assess the risk associated with a given hazard based on how easily it comes to their mind. Epidemics, for example, are perceived as less likely and more impactful in Italy compared to Sweden. This outcome can be explained by cross-country differences in the impact of, as well as governmental responses to, COVID-19. Notwithstanding the ongoing pandemic, people in both Italy and Sweden are highly concerned about climate change, and they rank it as the most likely threat.
Supraglacial lake bathymetry automatically derived from ICESat-2 constraining lake depth estimates from multi-source satellite imagery
Authors: Datta Rajashree Tri , Wouters Bert
Published: November 2021

Abstract. We introduce an algorithm (Watta) which automatically calculates supraglacial lake bathymetry and detects potential ice layers along tracks of the ICESat-2 (Ice, Cloud, and Land Elevation Satellite) laser altimeter. Watta uses photon heights estimated by the ICESat-2 ATL03 product and extracts supraglacial lake surface, bottom, and depth corrected for refraction and (sub-)surface ice cover in addition to producing surface heights at the native resolution of the ATL03 photon cloud. These measurements are used to constrain empirical estimates of lake depth from satellite imagery, which were thus far dependent on sparse sets of in situ measurements for calibration. Imagery sources include Landsat 8 Operational Land Imager (OLI), Sentinel-2, and high-resolution Planet Labs PlanetScope and SkySat data, used here for the first time to calculate supraglacial lake depths. The Watta algorithm was developed and tested using a set of 46 lakes near Sermeq Kujalleq (Jakobshavn) glacier in western Greenland, and we use multiple imagery sources (available for 45 of these lakes) to assess the use of the red vs. green band to extrapolate depths along a profile to full lake volumes. We use Watta-derived estimates in conjunction with high-resolution imagery from both satellite-based sources (tasked over the season) and nearly simultaneous Operation IceBridge CAMBOT (Continuous Airborne Mapping By Optical Translator) imagery (on a single airborne flight) for a focused study of the drainage of a single lake over the 2019 melt season. Our results suggest that the use of multiple imagery sources (both publicly available and commercial), in combination with altimetry-based depths, can move towards capturing the evolution of supraglacial hydrology at improved spatial and temporal scales.
PENGARUH PEMBELAJARAN KONTEKSTUAL MEDIA AUDIO DAN KEMAMPUAN BERPIKIR ILMIAH TERHADAP HASIL BELAJAR IPA SISWA KELAS IV SD
Authors: Sunaryo Oyok , Hidayat Sholeh , Sukmayadi Dodi
Published: November 2021

Konsep IPA untuk sebagian besar siswa merupakan konsep yang sulit. Berdasarkan observasi yang dilakukan saat pembelajaran IPA di kelas IV SDN Pasirtenjo 3 menunjukkan bahwa guru masih menggunakan pendekatan pembelajaran yang berpusat pada guru. Kondisi inilah yang kemungkinan besar menjadi salah satu penyebab rendahnya hasil belajar Siswa pada mata pelajaran IPA. Penelitian ini dilakukan dengan tujuan untuk menganalisis pengaruh pembelajaran kontekstual media audio visual dan kemampuan berpikir ilmiah terhadap hasil belajar IPA Siswa kelas IV  Sekolah Dasar. Populasi dalam penelitian ini adalah seluruh siswa  kelas IV SDN Pasirtenjo 3 pada tahun pelajaran 2020/2021 yang berjumlah 60 orang, sampel penelitian adalah Siswa kelas IV SDN Pasirtenjo 3 Kabupaten Pandeglang berjumlah 30 orang. Variabel independen dalam penelitian ini adalah pembelajaran kontekstual media audio visual dan berpikir ilmiah, sedangkan variabel terikat adalah hasil belajar IPA. Pengukuran variabel berpikir ilmiah menggunakan angket, sedangkan hasil belajar menggunakan tes hasil belajar IPA berbentuk pilihan ganda. Hasil penelitian menunjukkan bahwa adanya perbedaan hasil belajar IPA antara siswa yang pembelajaran kontekstual media audio visual dengan yang pembelajaran kontekstual tanpa media audio visual. Kemudian adanya pengaruh interaksi antara pembelajaran kontekstual dengan kemampuan berpikir ilmiah terhadap hasil belajar IPA. Selanjutnya hasil belajar IPA siswa dengan pembelajaran kontekstual media audio visual kemampuan berpikir ilmiah lebih tinggi dibandingkan dengan kontekstual tanpa media audio visual. Serta tidak terdapat perbedaan hasil belajar IPA siswa yang kemampuan berpikir ilmiah rendah dengan pembelajaran kontektual bermedia audio visual dibandingkan dengan pembelajaran  kontekstual tanpa media audio visual.
IMPLEMENTASI METODE TIME TOKEN UNTUK MENINGKATKAN PROSES DAN HASIL BELAJAR SISWA SDN 42/II SENAMAT ULU KECAMATAN BATHIN III ULU KABUPATEN BUNGO
Authors: Syamsuar Apdoludin Ludin
Published: November 2021

Masalah utama dalam penelitian ini adalah penerapan metode yang tidak tepat oleh guru, nilai siswa yang tidak mencapai KKM, tingkat pemahaman siswa terhadap pada mata pelajaran PKn yang sangat rendah, mata pelajaran PKn yang digunakan kurang menarik, siswa masih banyak yang tidak aktif dalam proses belajar PKn, solusi dari permasalahan tersebut adalah metode Time Token. Jenis penelitian yang digunakan adalah penelitian tindakan kelas yang dilaksanakan dalam II siklus, tiap siklus terdiri dari perencaan, pelaksaan tindakan, observasi dan refleksi. Subjek penelitian yaitu siswa kelas V SDN 42/II senamat ulu yang berjumlah 14 siswa, pengumpulan data diambil dari wawancara, lembar observasi guru, siswa dan hasil belajar siswa. Hasil penelitian ini menunjukan bahwa metode Time Token dapat meningkatkan hasil belajar siswa kelas V SDN 42/II senamat ulu pada mata pelajaran PKn. Meningkatnya proses dan hasil belajar siswa yang mencapai KKM, dari 5 siswa 36% siswa yang mencapai KKM pada siklus I dan pada siklus II mengalami peningkatan yaitu 12 siswa 86% yang mencapai KKM.
PENGEMBANGAN APLIKASI SMARTPHONE UNTUK MOBILE LEARNING MATAKULIAH SISTEM OPERASI di STKIP MUHAMMADIYAH MUARA BUNGO
Authors: Fadli Radinal , Hakiki Muhammad
Published: November 2021

Disterupsi yang terjadi pada dunia Pendidikan pada saat ini, dipicu oleh perkembangan teknologi pada era transformasi digital atau biasa dikenal dengan era revolusi industri 4.0. dimana dibutuhkan suatu konsep dan mekanisme proses pembelajaran yang menintegrasikan teknologi dengan pendidikan. Pemanfaatan teknologi baik hardware dan software mulai marak diaplikasikan dalam bidang pendidikan salah satunya sebagai media pembelajaran. Penelitian yang dilakukan adalah penelitian Research and Development (R and D) dengan prosedur pengembangan 4D (Define, Design, Develop, Desseminate). Pengembangan yang dilakukan bertujuan untuk mengambangkan media pembelajaran berupa aplikasi smartphone untuk pembelajaran mobile learning matakuliah Sistem Operasi di STKIP Muhammadiyah Muara Bungo. Teknik analisis data menggunakan teknik analisis deskriptif untuk mendeskripsikan validitas, praktikalitas, dan efetivitas media pembelajaran yang dikembangkan. Hasil yang diperoleh dari penelitian pengembangan ini: (1) validitas aplikasi smartphone untuk mobile learning dinyatakan valid pada aspek media dan aspek materi, (2) praktikalitas aplikasi smartphone untuk mobile learning berdasarkan pengamatan langsung, respon dosen, dan mahasiswa dinyatakan sangat praktis, (3) efektivitas aplikasi smartphone untuk mobile learning dinyatakan efektif dalam meningkatkan hasil belajar. Berdasarkan temuan penelitian ini disimpulkan bahwa aplikasi smartphone untuk mobile learning dinyatakan valid, praktis, dan efektif untuk dimanfaatkan sebagai Media Pembelaran pada mata kuliah Sistem Opearsi.