bluuebunny/crossref_metadata_2025 huggingface dataset:
He Piki Raukura: Understanding Strengths-based Māori child development constructs in Kaupapa Māori early years provision
Authors:   Te Kōpae Piripono, New Plymouth, New Zealand, Tamati Aroaro , Ratima Mihi ,   Te Pou Tiringa Incorporated, New Plymouth, New Zealand, Hond-Flavell Erana ,   Te Pou Tiringa Incorporated, New Plymouth, New Zealand, Edwards Will ,   Taumata Associates, Hawera, New Zealand, Hond Ruakere ,   Te Pou Tiringa Incorporated, New Plymouth, New Zealand, Korewha Hinerangi ,   Te Kōpae Piripono, New Plymouth, New Zealand, Treharne Gareth ,   University of Otago, Dunedin, New Zealand, Theodore Reremoana ,   University of Otago, Dunedin, New Zealand, Poulton Richie ,   University of Otago, Dunedin, New Zealand
Published: July 2021

The importance of early childhood education programmes has been widely established by researchers, but there has been little research on the outcomes of early childhood Kaupapa Māori educational initiatives in Aotearoa New Zealand. The aim of the research project reported here, He Piki Raukura, was to define Māori child behaviour constructs that may underlie positive Māori child development. We conducted in-depth interviews with two experts and 21 whānau participating in a Kaupapa Māori early years programme in Taranaki. Five themes were identified: local Māori identity; building whānau/ community; commitment to a shared kaupapa; clear and consistent processes; and dealing with issues positively. Through wānanga, four Māori child behaviour constructs were defined: tuakiri (secure local Māori identity); whānauranga (acting as a member of whānau); manawaroa (persisting despite difficulty); and piripono (integrity, commitment and responsibility for a shared kaupapa). These constructs provide novel ways of understanding child development that can be applied to explore how Kaupapa Māori early years initiatives might impact on development.
The impact of the COVID-19 level 4 lockdown on food security among whānau of decile 1 schools
Authors:   Eastern Institute of Technology, Napier, New Zealand, Tipene-Leach David
Published: July 2021

Interviews with stakeholders in deprived Hawke’s Bay schools early in the COVID-19 lockdown documented exacerbated food insecurity among school whānau. Our enquiry highlights the support role played by well-informed teacher aides and school–whānau networks, which were easily and inexpensively resourced, intuitive, proactive and collaborative, ensuring whānau access to appropriate support according to need. We expect our findings to further inform such initiatives in any further lockdown. Additionally, we posit that such school-based operations could become the nexus of a primary foodsecurity hub, alongside the Lunches in Schools programme, working in a tailor-made fashion bespoke to whānau without a charity or welfare label. Given the recent well-resourced COVID-19-related investment into the business world and the ongoing lack of progress in the reduction of child poverty, in the post-COVID-19-lockdown environment, simple structural rearrangements for the chronically food insecure are likely to become politically acceptable to the nation.
Te whare tapa whā: The impact of physical distancing on the health and well-being of kuia and koroheke
Authors:   Te Atawhai o Te Ao, Whanganui, New Zealand, Tinirau Rāwiri , Allen Ana ,   Te Atawhai o Te Ao, Whanganui, New Zealand, Cribb Miriama ,   Te Atawhai o Te Ao, Whanganui, New Zealand, Maraku Hine ,   Te Atawhai o Te Ao, Whanganui, New Zealand, Wakefield Susie ,   Te Atawhai o Te Ao, Whanganui, New Zealand
Published: July 2021

The effects of the COVID-19 lockdown and physical distancing were broad, impacting multiple sectors, particularly health, for Māori and Indigenous peoples. This situation report considers health and well-being using Te Whare Tapa Whā, and looks at the experiences and voices of kuia and koroheke—considered to be at high risk of contracting coronavirus—to better understand their health and well-being impacts from physical distancing. This report then reflects on these experiences to identify how help groups can best support communities in future lockdown situations. The recommendations for future support efforts are threefold and centre on increasing coordination amongst the efforts of the different help groups, using a holistic approach such as Te Whare Tapa Whā to address the various pillars of health, and considering individual health and well-being needs.
COMPACT ROTARY PLATFORM AS A UNIVERSAL LABORATORY STAND
Authors: Zamorsky Alexander
Published: July 2021

A single axis rotary platform is distinguished among the laboratory equipment for testing gyroscopic devices and systems and their sensitive elements. An overview of the design principles of industrially developed stands for the study of static and dynamic characteristics of gyroscopic devices and systems is provided. The scheme of design of the universal laboratory stand is suggested as the compact rotary platform for research of static and dynamic characteristics of micromechanical gyroscopes and accelerometers as sensors of angular speed. The physical components of such a stand and technical and technological problems of its practical implementation are reviewed. The proposed laboratory stand is considered as a cyberphysical system where computing components play a crucial role in determining the parameters of the system and the studied micromechanical sensors. For this purpose, in addition to the physical control loop of the electric drive to ensure the stability of the angular velocity of the platform, an independent measuring loop is considered for analytical determination of system parameters, including the studied micromechanical sensors. The versatility of the stand is ensured by solving the inverse problems, namely determining in the process of testing static and dynamic characteristics of the electric drive and measuring sensors that work on various physical principles. It is assumed that, in addition to solving practical problems of micromechanical sensors in the development of the appropriate information interface of the virtual device, a compact laboratory stand can be effectively used in the educational process during laboratory work in relevant disciplines of instrument making direction.
MODELLING OF MULTICRITERIAL SYSTEM OF METALWORKING CNC-EQUIPMENT’S CONTROL WORK
Authors: Lupyna Igor , Klotchko Tatiana , Skytsiouk Volodymyr
Published: July 2021

Currently, the means of measuring and converting information signals from equipment are widely used in industrial processing systems.

For the most part, modern systems of mechanical processing of materials use mainly single-channel systems that work on information signals that identify the physical parameters of the technological process. Such a narrow specialization of monitoring one of the parameters usually reduces the reliability of the results obtained and, as a consequence, the reliability of the entire control system.

The task of the work is to determine the possibilities of creating the foundations of the automated system on the basis of multi-channel information recording devices from processing equipment and possible approaches to the choice of criteria for the analysis of fluid information.

As a result of the given analysis of a condition of branch and its modern transformations, the module of system for data collection on process (from a set of sensors) is offered for development, with a possibility of their further transformation on certain dependence, storage, transfer, and a possibility of signaling of certain events, for example, faults, for use in production automation systems and for equipment not included in the systems.

At the same time, the multi-channel device of the sensor system provides opportunities to determine the full amount of information about the process. The basic modern means of control of work of technological processing CNC-equipment applied in the industry are investigated.

The most perspective directions of development of multicriteria methods and automated control systems of technological equipment in the part of creation of complex sensors are determined. These sensory complexes register signals that are different in physical phenomena. The main approaches to the creation of control systems provide opportunities to build a theoretical basis given the logic of the system of obtaining specific information data in the automation of technological processes.

Promising research at creating algorithms for such complex systems of quality control and diagnostics of technological processes can be aimed.
MOVEMENT ALGORITHM OF AN AUTONOMOUS ROBOT-HEXAPOD FOR MOVING IN NARROW CLOSED SPACES
Authors: Platov Ilya , Pavlovskyi Oleksii
Published: July 2021

The article proposes the use of a walking robot - hexapod for its use to monitor the technical condition of ventilation shafts, technical dry channels, enclosed spaces, etc. The peculiarity of this type of robots is the increased possibility in comparison with tracked or wheeled machines, due to their design and ability to overcome irregularities. Also, in comparison with existing designs, the hexapod can be fully autonomous and does not depend on a stationary power source. In its turn, construction of walking robots requires development of complex algorithms of motion, which are significantly different compared to wheeled or tracked moving devices, because in addition to the control of limbs, which are set in motion by servo drives, the computer core must process information from sensors that provide information both about the position of the robot itself, and about the surrounding objects, which can be: distance sensors, touch sensors, video cameras, accelerometers, gyroscopes, etc.

The paper highlights the developments used to date, but analysis of existing algorithms for walking robots showed a lack of such for the use of the robot in narrow and confined spaces, ventilation shafts, dry technical ducts, etc. In this regard, an algorithm was developed that partially closes this gap. The peculiarity of this algorithm is the simplicity of practical implementation, as well as the safety of the construction of work in progress, because it takes into account the need for increased static stability by modifying the matrix of limb position by a third state, which gives the opportunity to consider the initial position, or memorize the limb state, from which, in the future, you can continue the movement from an arbitrary stable position. In addition, the algorithm can be applied not only to robots with six limbs, but also to other kinds of mobile walking platforms, because the proposed variant allows testing and calibration of any type of gait at each iteration of the step.

In the future, it is planned to test the proposed algorithm on the developed prototype not only when moving the work on horizontal surfaces, but also on vertical surfaces, which is an important component for the proposed application area.
The Contractual Framework of Trade and Economic Cooperation of Central Asian Countries with the Republic of Korea
Authors: Kupina L.
Published: July 2021

The article studies main agreements regulating trade and economic relations between the Republic of Korea and the countries of Central Asia, taking into account the dynamics of bilateral relations between them. The author also looks into the prospects and effectiveness of the development of multilateral cooperation between the Republic of Korea and the EAEU. Moreover, the author highlights the problems that slow down the development of commercial ties between South Korean and Central Asian business companies. Their resolution depends on economic and political initiatives at the national level in the Central Asian republics.
South Caucasus: Stages of Post-Soviet History
Authors: Krylov A.
Published: July 2021

The post-Soviet history of the South Caucasus is divided into three stages of different duration, format and character. The first stage (1991-2008) began after the collapse of the USSR and continued until the war in South Ossetia in August 2008. At this time, the formation of independent states took place, the vectors of foreign policy of the new states were determined. The second stage of the post-Soviet history of the South Caucasus (2008-2020) began after a five-day war and Russia's recognition of the independence of Abkhazia and South Ossetia. Russia has strengthened its position in the South Caucasus by building a long-term system of response to potential threats in the southern direction. The Georgian factor has ceased to play an important role, the Armenian direction has become the main one in the policy of the United States and the collective West. To reformat the South Caucasus in American interests, “football diplomacy” was used, and then the second Karabakh war followed. After the end of the second Karabakh war, the third stage of the post-Soviet development of the South Caucasus began. At the end of 2020, Moscow managed to stabilize the situation and bring a contingent of Russian peacekeepers into the conflict zone. Further prospects for the development of the South Caucasus depend on many contradictory factors. The more tense the international situation and Russia's relations with the United States and the collective West will be, the higher the likelihood of the outbreak of new wars and conflicts in the South Caucasus.
Religious Situation in Contemporary Azerbaijan
Authors: Murtazin M.
Published: July 2021

Azerbaijan is the only country in the post-Soviet space where shiism is dominant and most Muslims are shiits. During the three decades of independent national development relations between the state and religion passed through 3 stages. As a result Azerbaijan lives now in conditions of symphony between the state and religion which may be preserved in the near perspective.
COVID and Azerbaijan’s Economy
Authors: Fedorovskaya I.
Published: July 2021

Azerbaijan’s economy has faced three major challenges in 2020. First, it was the coronavirus pandemic, which led to massive closures of business enterprises, unemployment, and deterioration of the population conditions. Second, it was the fall of prices for oil the export of which is the main source of income for Azerbaijan. Third, it was the military conflict with Armenia, which required from the country serious financial expenses. As a result Azerbaijan's GDP decreased by 4.3% compared to 2019. It will take 2 to 5 years for its economy to recover.
Actual Problems and Prospects of Ukrainian Nation-Building
Authors: Shishkov V.
Published: July 2021

The article examines the problem of formation of ethnic boundaries in the process of nation-building in Ukraine and the role of memory politics in this process. The analysis is carried out on a theoretical and methodological basis, including research of the theory of the nation and nationalism, issues of ethnicity, imperial issues, memory policy and historical policy in the post-Soviet space. The efforts of Ukraine to implement the policy of memory, its origins and prerequisites are analyzed. The natural character and direction of this activity, conditioned by the specifics of nation-building in the imperial and Soviet periods, is shown. The main directions, elements, and means of implementing the policy of memory are aimed at forming the foundations of the Ukrainian nation, tearing it off from historical Russia and aiming at spreading Russophobic mythology. Special attention is paid to historical politics as a tool for reforming mass consciousness and implanting Ukrainian identity. The researched factual material made it possible to draw several conclusions about the consequences of the implementation of the memory policy. In particular, after decommunization the theme of decolonization gains increasing importance in Ukraine, being aimed at an even more radical division of the Russian and Ukrainian ethnic groups, of their common historical heritage. In general, the politics of memory may be regarded as an important condition and tool for constructing a new border between Russia and Ukraine.
Moldova on the Eve of Parliamentary Elections
Authors: Astakhova S.
Published: July 2021

The date of early parliamentary elections has been announced in Moldova. By the decree of the President of the country M.Sandu the elections are scheduled for July 11, 2021. The purpose of the elections is to neutralize political forces that oppose the Romanization of the country and advocate development of relations with Russia. The largest center-left force is Party of Socialists of the Republic of Moldova (PSRM) led by former President Igor Dodon. It consistently supports the preservation of Moldova’s statehood, as well as opposes its entry into NATO.
Mining and Metallurgical Complex of Kazakhstan: Problems and Prospects of Development
Authors: Adno Y.
Published: July 2021

The article examines the current situation and main trends of development of the Kazakhstan mining and metallurgical complex (MMC) which constitutes an important strategic sector of the republican economy. The MMC is a basic supplier of raw and construction materials for industrial production and export of sophisticated technological products. Main MMC advantages are solid raw material basis and developed mining industry. An important factor of the MMC development is attraction of foreign capital. The article examines main tendencies of the investment policies. It also analyzes prospects of the MMC development.
An Energy-efficient Microcontroller-based Smart Light Controlling System
Authors: Islam Md. Saidul , Debnath Sumon Chandra , Azam Md. Sadequl , Rahaman Mashudur , Hoque Md. Azizul , Bahar Ali Newaz , Kowsar Abu
Published: July 2021

In this work, an energy-saving smart light controlling system has been proposed that can main-tain the desired intensity of light in a room automatically. Unlike the conventional light control system, the proposed system splits a large room into several zones and analyzes the light inten-sity of each zone; hence, the controlling unit adjusts the light intensity to the desired level. The main controlling unit consists of a light sensor, a motion sensor, a relay with a driver unit, an LCD display, etc. for controlling light efficiently to reduce the power waste. The sensors meas-ure the intensity of light, based on the standard light intensity data chart the controller units make a decision how many light bulbs are needed to be switched ON/OFF in a particular zone. Moreover, the system automatically switched-OFF all light bulbs when there is nobody in the room. Proteus design suite 8.0 is used to design and simulation of the proposed system. Moreo-ver, the PCB layout is designed using ExpressPCB version 7.5.0. The proposed system is capable of minimizing the power loss by up to 44% in comparison to the conventional light manage-ment system.
Generating the Triangulations of the Torus with the Vertex-Labeled Graph K_{2,2,2,2}
Authors: Lawrencenko Serge , Magomedov Abdulkarim M.
Published: July 2021

Using the orbit decomposition, a new enumerative polynomial P(x) is introduced for abstract (simplicial) complexes of a given type, e.g., trees with a fixed number of vertices or triangulations of the torus with a fixed graph. The polynomial has the following useful properties: (I) P(1) is equal to the number of unlabeled complexes (of a given type), (II) the derivative P'(1) is equal to the number of non-trivial automorphisms over all unlabeled complexes, (III) the integral of P(x) from 0 to 1 is equal to the number of vertex-labeled complexes, divided by the order of the acting group. The enumerative polynomial P(x) is demonstrated for trees, and then is applied to triangulations of the torus with the vertex-labeled complete four-partite graph G = K_{2,2,2,2}, in which specific case P(x) = x^{31}. The graph G embeds on the torus as a triangulation, T(G). The automorphism group of G naturally acts on the set of triangulations of the torus with the vertex-labeled graph G. For the first time, by a combination of algebraic and symmetry techniques, all vertex-labeled triangulations of the torus (twelve in number) with the graph G are classified intelligently without using computing technology, in a uniform and systematic way. It is helpful to notice that the graph G can be converted to the Cayley graph of the quaternion group Q_8 with three quaternions, i, j, k, as generators.
Metabolomic Characterizations of Fullerene Nanomaterials Potentiate Muscle of Clownfish (Amphiprion Ocellaris)
Authors: Huang Xiaomei , Zhao Meiying , Lin Shan , Xu Min , Li Linchun
Published: July 2021

Fullerene nanomaterials exposure often causes a variety of diseases. Many studies have pointed out that fullerene nanomaterials can be studied in fish. However, there are few studies on health risk assessment of clownfish with lower doses of fullerene nanoparticles or different exposure durations. In this study, we set 1.5% and 3.0% for low- and high-dose fullerene nanomaterials exposure concentrations, respectively. Meanwhile, we performed a time-series analysis to investigate that the activation of lipid and amino acids metabolism after fullerene nanomaterials exposure in clownfish. 1368 metabolites were detected from clownfish by using liquid chromatography-mass spectrometry (LC-MS) analyses. Our results suggest that exposure to lower fullerenes nanoparticles may have a certain promoting effect on clownfish overall length, body length and weight. At the same time, the activation of potential metabolic pathways enriched by different metabolites in KEGG pathway may also indicate the positive promoting effect of fullerene nanoparticles after exposure. The present work indicates that it is particularly important to find the concentration window for fullerene nanomaterials to improve government safety guidelines, especially when these are applied to assess the health risk of human.
Urban Canyon in the CBD of Rio de Janeiro (Brazil): Avenida Rio Branco during Summer
Authors: Lemos Lidiane de Oliveira , Oscar Júnior Antonio Carlos , Mendonça Francisco
Published: July 2021

This study aims to evaluate the land surface temperature (LST) and the thermal characteristics of the Urban Canopy Layer (UCL) of the urban canyon in Avenida Rio Branco in the Central Business District (CBD) of Rio de Janeiro during summer. In order to conduct this evaluation, two methods were employed: 1) summer LST estimation from the last decade (2011-2020); 2) field survey using nine sampling points — seven along two mobile transects, one fixed point, and one vertical measurement point, which required the use of a RPA (Remotely Piloted Aircraft). Three categories of analysis were established based on the prevailing synoptic situations: stability, instability, and post-instability. The CBD showed extensive areas with surface heat islands, in which temperatures were higher than 38.9°C; the areas with milder LSTs were Campo do Santana, Avenida Rio Branco, and one of the Mixed-Use Zones (Praça Mauá). The shadows of the buildings gave rise to niches of lower LSTs on Avenida Rio Branco; however, the satellite data and the data collected during the ten days of field experiments diverged. In situ data revealed that the urban morphology of Avenida Rio Branco is susceptible to the formation of heat islands, presenting heat islands of very strong magnitude (over 6.1°C) in atmospheric stability, strong magnitude (4.1-6.0°C) in atmospheric instability, and moderate magnitude (2.1°C-4.0°C) in post-atmospheric instability. Despite the synoptic situation, thermal cores were concentrated at 1 pm. The intersection between Avenida Rio Branco, Rua do Ouvidor, and Praça Mauá stored most of the solar energy received during the day. Finally, vertical analysis demonstrated the formation of a thermal inversion on the night of the highest mean air temperature (29.5°C), probably, due to the roughness and number of buildings in the urban canyon.
Efficacy Analysis and Kinetics of 3-Component Photopolymerization by Visible-LED/Coumarin and Enhanced by Additives of Iodonium Salt and Amine
Authors: Lin Jui-Teng , Lalevee Jacques , Cheng Da-Chun
Published: July 2021

This article presents, for the first time, the kinetics and the general conversion features of free radical polymerization (FRP) in a 3-component system (A/B/N), with [A] being the initiator, and [B] and [N] are additives, based on the proposed mechanism of Rahal et al. Higher FRP can be achieved by additives [B] and [N], via the dual function of (i) regeneration [A], and (ii) generation of extra radicals (R) via the radicals (S' and S) produced by N.The initiator (coumarin) shows a dual photo-oxidation and photo-reduction character for high efficacy. The FRP conversion efficacy (CE) depends not only on the property of the initiator [A], the additives [B] and [N}, but also the types of monomers. For example, when [A]=CoumC, [A]/NPG is more efficient than [A]/Iod, but revserse trend occurs in some monomers. However, 2-component systems (with CE=0% to 80%) are always less efficient than that of 3-component systems (with CE=70% to 86%, in TMPTA). Specific systems with [A]=coumarins, [B]=Iodonium salt, and N=NPG are analyzed. Analytical formulas for the role of each component concentration, light intensity and coupling rates on the conversion efficacy are derived.
Detection of Cervical Cancer Cells in Whole Slide Images Us-ing Deformable and Global Context Aware Faster RCNN-FPN
Authors: LI Xia , Xu Zhenhao , Shen Xi , Zhou Yongxia , Xiao Binggang , Li Tie-Qiang
Published: July 2021

Cervical cancer is a worldwide public health problem with a high rate of illness and mortality among women. In this study, we proposed a novel framework based on Faster RCNN-FPN ar-chitecture for the detection of abnormal cervical cells in cytology images from cancer screening test. We extended the Faster RCNN-FPN model by infusing deformable convolution layers into the feature pyramid network (FPN) to improve scalability. Furthermore, we introduced a global contextual aware module alongside the Region Proposal Network (RPN) to enhance the spatial correlation between the background and the foreground. Extensive experimentations with the proposed deformable and global context aware (DGCA) RCNN were carried out using the cer-vical image dataset of “Digital Human Body" Vision Challenge from the Alibaba Cloud TianChi Company. Performance evaluation based on the mean average precision (mAP) and receiver operating characteristic (ROC) curve has demonstrated considerable advantages of the proposed framework. Particularly, when combined with tagging of the negative image samples using tra-ditional computer-vision techniques, 6-9% increase in mAP has been achieved. The proposed DGCA-RCNN model has potential to become a clinically useful AI tool for automated detection of cervical cancer cells in whole slide images of Pap smear.
Short-range Berezinskii-Kosterlitz-Thouless Phase Characterization for the q-state Clock Model
Authors: Negrete Oscar Andres , Vargas Patricio , Peña Francisco Jose , Saravia Gonzalo , Vogel Eugenio Emilio
Published: July 2021

Beyond the usual ferromagnetic and paramagnetic phases present in spin systems, the usual q-state clock model, presents an intermediate vortex state when the number of possible orientations q for the system is equal to 5 or larger. Such vortex states give rise to the Berezinskii-Kosterlitz-Thouless (BKT) phase present up to the XY model in the limit q→∞. Based on information theory, we present here an analysis of the classical order parameters plus new short-range parameters defined here. Thus, we show that even using the first nearest neighbors spin-spin correlations only, it is possible to distinguish the two transitions presented by this system for q greater than or equal to 5. Moreover, the appearance at relatively low temperature and disappearance of the BKT phase at a rather fix higher temperature is univocally determined by the short-range interactions recognized by the information content of classical and new parameters.
PENGARUH PEMBELAJARAN FISIKA DENGAN PENDEKATAN INDUKTIF MELALUI METODE EKSPERIMEN DAN DEMONSTRASI TERHADAP HASIL BELAJAR KOGNITIF SISWA KELAS X MA SAFINATUNNAJA NW REPOK OAK
Authors: Zikriana Tuti Zikriana
Published: July 2021

Penelitian ini bertujuan untuk Untuk mengetahui ada tidaknya perbedaan pengaruh pembelajaran fisika dengan  pendekatan induktif melalui metode eksperimen dan demonstrasi terhadap hasil belajar kognitif siswa kelas X MA Safinatunnaja NW Repok Oak.Penelitian ini menggunakan metode eksperimen dengan desain faktorial. Populasi dalam penelitian ini adalah seluruh siswa kelas X Semester II SM Safinatunnaja NW Repok Oak Tahun Ajaran 2018/2019. Teknik pengumpulan data yang digunakan adalah teknik observasi, teknik dokumentasi dan teknik tes. Implikasi dari hasil penelitian adalah bahwa pembelajaran Fisika dengan pendekatan induktif menggunakan metode eksperimen memberikan pengaruh yang lebih baik dengan mendapatkan nilai rata-rata terhadap hasil kognitif sebesar 90.21 dari 28 siswa, sedangkan pada penggunaan metode demonstrasi mendapatkan nilai rata-rata sebesar 80.87 dari 31 siswa. Selain itu kemampuan awal siswa kategori tinggi akan memberikan kemampuan kognitif yang lebih baik dibanding dengan kemampuan awal siswa kategori sedang dan rendah. Berdasarkan hasil analisis penelitian dapat disimpulkan bahwa ada pengaruh penggunaan pendekatan induktif melalui metode eksperimen terhadap hasil belajar kognitif siswa. Kemudian ada pengaruh penggunaan pendekatan induktif melalui metode demonstrasi terhadap hasil belajar kognitif siswa. Dan ada perbedaan pengaruh antara penggunaan pendekatan induktif melalui metode eksperimen disertai pemberian tugas dan metode demonstrasi disertai pemberian tugas terhadap kemampuan kognitif siswa. Penggunaan metode eksperimen disertai pemberian tugas memberikan kemampuan kognitif lebih baik daripada melalui metode demonstrasi disertai pemberian tugas.
PENERAPAN GAYA GESEK PADA KEHIDUPAN MANUSIA
Authors: Hardiansyah Imam Wahyu
Published: July 2021

Terdapat macam-macam gaya yang mungkin dapat diterapkan di dalam kehidupan sehari-hari, salah satunya adalah gaya gesek. Tujuan artikel ini adalah untuk memberikan wawasan kepada para pembaca mengenai pengertian gaya gesek, macam-macam gaya gesek, serta penerapan gaya gesek dalam kehidupan manusia. Gaya gesek tersebut mencakup gaya dalam aspek yang menguntungkan dan gaya dalam aspek yang merugikan bagi kehidupan manusia.
PEMBELAJARAN FISIKA DENGAN PENDEKATAN PROBLEM BASED LEARNING (PBL) MENGGUNAKAN MODUL DAN BULETIN DITINJAU DARI KEMAMPUAN VERBAL DAN MOTIVASI BERPRESTASI SISWA
Authors: Fatimah Siti , Sarwanto Sarwanto , Aminah Nonoh Siti
Published: July 2021

Tujuan penelitian ini adalah untuk mengetahui pengaruh pembelajaran fisika dengan PBL menggunakan modul dan buletin, kemampuan verbal, serta motivasi berprestasi terhadap prestasi belajar. Metode penelitian ini menggunakan penelitian eksperimen. Populasi penelitian adalah seluruh siswa kelas XI IPA di SMA Negeri 1 Sidareja tahun pelajaran 2012/2013 sebanyak 4 kelas. Sampel penelitian ditentukan dengan teknik cluster random sampling sebanyak 3 kelas.  Kelas eksperimen 1 menggunakan modul, kelas eksperimen 2 menggunakan buletin, dan kelas eksperimen 3 menggunakan pendekatan konvensional. Teknik pengumpulan data menggunakan metode tes untuk mendapatkan data prestasi kognitif produk dan kemampuan verbal siswa, metode angket untuk mendapatkan informasi prestasi kognitif proses, prestasi afektif, dan motivasi berprestasi siswa. Uji hipotesis penelitian menggunakan uji Kruskall-Wallis. Hasil penelitian dapat disimpulkan: (1) pendekatan PBL menggunakan modul dan buletin memiliki pengaruh lebih baik daripada pendekatan konvensional terhadap prestasi produk dan proses; (2) tidak ada pengaruh antara pendekatan PBL menggunakan modul dan buletin dengan kemampuan verbal terhadap prestasi belajar; (3) ada pengaruh pendekatan PBL menggunakan modul dan buletin dengan motivasi berprestasi terhadap prestasi kognitif proses dan afektif; (4) pendekatan PBL menggunakan modul dan buletin memiliki interaksi yang lebih baik dengan kemampuan verbal dan motivasi berprestasi kategori tinggi dan rendah daripada pendekatan konvensional.

 Kata kunci: pembelajaran fisika, pendekatan PBL, modul, buletin
PENGGUNAAN PENDEKATAN KONTEKSTUAL MELALUI MEDIA SIMULASI ANIMASI KOMPUTER DAN FILM PENDEK DITINJAU DARI KEMAMPUAN PENALARAN ANALITIS DAN GAYA BELAJAR SISWA
Authors: Wicaksono Anggit Grahito , Sarwanto Sarwanto , Suparmi Suparmi
Published: July 2021

Penelitian ini bertujuan untuk mengetahui pengaruh dan interaksi antara penggunaan pendekatan kontekstual melalui media simulasi animasi komputer dan film pendek, kemampuan penalaran analitis, dan gaya belajar siswa terhadap prestasi belajar siswa. Penelitian menggunakan metode kuasi eksperimen dan dilaksanakan di SMK Muhammadiyah 4 Sragen pada kelas XI TKJ (Teknik Komputer dan Jaringan) Tahun Ajaran 2012/ 2013 terdiri dari 3 kelas. Teknik pengambilan sampel menggunakan cluster random sampling. Sampel sebanyak 2 kelas, kelas XI TKJ 1 sebagai kelas eksperimen I mendapatkan perlakuan pembelajaran dengan pendekatan kontekstual melalui media simulasi animasi komputer dan kelas XI TKJ 2 sebagai kelas eksperimen II mendapatkan perlakuan pembelajaran dengan pendekatan kontekstual melalui media film pendek. Data diperoleh melalui teknik tes untuk prestasi kognitif, kemampuan penalaran analitis, angket gaya belajar, dan lembar observasi untuk prestasi afektif. Teknik analisis data menggunakan ANAVA tiga jalan dengan General Linier Model (GLM) melalui program SPSS versi 16. Hasil penelitian menunjukkan: (1) ada pengaruh penggunaan pendekatan kontekstual melalui media simulasi animasi komputer dan film pendek terhadap prestasi belajar siswa; (2) ada pengaruh kemampuan penalaran analitis terhadap prestasi belajar siswa; (3) ada pengaruh gaya belajar terhadap prestasi belajar siswa; (4) ada interaksi antara penggunaan pendekatan kontekstual melalui media simulasi animasi komputer dan film pendek dengan kemampuan penalaran analitis siswa terhadap prestasi belajar siswa; (5) tidak ada interaksi antara penggunaan pendekatan kontekstual melalui media simulasi animasi komputer dan film pendek dengan gaya belajar siswa terhadap prestasi belajar siswa; (6) ada interaksi antara kemampuan penalaran analitis dan gaya belajar siswa terhadap prestasi belajar siswa; (7) tidak ada interaksi antara penggunaan pendekatan kontekstual melalui media simulasi animasi komputer dan film pendek, kemampuan penalaran analitis dan gaya belajar siswa terhadap prestasi belajar siswa.

 

Kata Kunci : Pendekatan kontekstual, simulasi animasi komputer, film pendek, kemampuan penalaran analitis, gaya belajar
PENDEKATAN KONTEKSTUAL MELALUI METODE DEMONSTRASI DAN SIMULASI DALAM PEMBELAJARAN IPA DITINJAU DARI KECERDASAN SPASIAL DAN INTERAKSI SOSIAL SISWA
Authors: Purnawirawanti Yety , Sarwanto Sarwanto , Sugiyarto Sugiyarto
Published: July 2021

Tujuan penelitian ini adalah untuk mengetahui pengaruh pendekatan kontekstual demonstrasi dan simulasi, kecerdasan spasial dan interaksi sosial siswa serta interaksinya terhadap prestasi belajar. Penelitian ini merupakan penelitian eksperimen, dilaksanakan dari bulan Oktober-November 2012. Populasi penelitian ini adalahsiswa kelas V Madrasah Ibtidaiyah di Kecamatan Mantingan tahun pelajaran 2012/2013 terdiri dari enam madrasah. Sampel diperoleh dengan teknik Cluster random sampling terpilih dua madrasah. Kelas eksperimen I adalah MIN Pakah diberi pembelajaran dengan metode demonstrasi dan kelas eksperimen II adalah MI Awaliyah Kedungharjo diberi pembelajaran dengan metode simulasi. Data dikumpulkan dengan metode tes untuk prestasi belajar kognitif dan data kecerdasan spasial,  angket untuk data interaksi sosial, lembar observasi dan angket tanggapan siswa untuk data prestasi belajar afektif dan psikomotorik. Hipotesis diuji menggunakan anava tiga jalan, uji lanjut dengan metode scheffe. Desain faktorial 2x2x2. Dari hasil analisis data disimpulkan:  1). pendekatan kontekstual melalui metode demonstrasi dan simulasi berpengaruh terhadap prestasi belajar, metode simulasi berpengaruh lebih efektif daripada metode demonstrasi; (2). kecerdasan spasial berpengaruh terhadap prestasi belajar; 3). interaksi sosial siswa berpengaruh terhadap prestasi belajar afektif dan psikomotorik; 4). terdapat pengaruh interaksi antara metode dengan kecerdasan spasial terhadap prestasi belajar psikomotorik; 5). terdapat pengaruh interaksi antara metode dengan interaksi sosial siswa terhadap prestasi belajar kognitif; (6). terdapat pengaruh interaksi antara kecerdasan spasial dan interaksi sosial siswa terhadap prestasi belajar afektif; (7). terdapat pengaruh interaksi antara metode, kecerdasan spasial, dan interaksi sosial siswa terhadap prestasi belajar psikomotorik.

 

Kata Kunci:Demonstrasi, simulasi, kecerdasan spasial, interaksi sosial.
PENGEMBANGAN MEDIA BERBASIS APLIKASI PADA HANDPHONE UNTUK MENDUKUNG PEMBELAJARAN MATA KULIAH MEDIA REAGEN DENGAN MODEL PROBLEM BASED LEARNING DIPADU PENDEKATAN BLESS
Authors: Wimpy Wimpy , Mulyani Sri , Ashadi Ashadi
Published: July 2021

Tujuan penelitian ini untuk mengetahui hasil dari tiap tahap pengembangan, kualitas dari aspek desain/ materi dan aspek media serta keefektifan media berbasis aplikasi pada handphone yang dikembangkan untuk mendukung pembelajaran mata kuliah media reagen dengan model Problem Based Learning dipadu pendekatan BLESS (Blended Learning Systems Structures) mahasiswa DIII Akademi Analis Kesehatan Nasional Surakarta. Penelitian ini merupakan penelitian dan pengembangan (R&D) yang mengacu pada model Borg & Gall dilaksanakan dari bulan Januari 2014 hingga Maret 2015 di Akademi Analis Kesehatan Nasional Surakarta. Data diambil dengan teknik angket, teknik observasi, dan teknik tes. Berdasarkan hasil analisis data, dapat disimpulkan: 1) hasil tiap tahap penelitian dan pengembangan pada: tahap studi pendahuluan disimpulkan bahwa dibutuhkan media berupa aplikasi pada handphone untuk mendukung pembelajaran mata kuliah Media Reagen dengan model PBL dipadu pendekatan BLESS (Blended Learning Systems Structure); tahap pengembangan produk awal dihasilkan draft aplikasi pada handphone yaitu LEMMPER (Learning Media Mobile Program Enriched & Refined); tahap uji coba awal dihasilkan revisi 1; tahap uji coba lapangan dihasilkan revisi 2, data keterlaksanaan tahapan problem based learning, dan hasil belajar mahasiswa; tahap uji coba operasional dihasilkan produk akhir, 2) kualitas produk pengembangan media berdasarkan penilaian ahli materi dan ahli media diperoleh CV > 0,7 yang menunjukkan bahwa media dapat dilanjutkan ke tahap uji coba; rata-rata angket respon dosen dan mahasiswa pada semua uji diperoleh penilaian dengan kategori “sangat layak”. 3) media dikatakan efektif dillihat dari persentase ketuntasan hasil belajar mahasiswa pada pembelajaran mata kuliah media reagen dengan model PBL dipadu pendekatan BLESS mahasiswa reguler 2C yang didukung dengan media LEMMPER. Hasil presentase ketuntasan klasikal yaitu 100 %, sehingga media dikatakan efektif.
The comparison between conventional and rice ratoon system on soil properties, rice productivity and nutrient status
Authors: Sakti Muchammad Bima Gegana , Komariah Komariah , Ariyanto Dwi Priyo , Sumani Sumani , Zaki Muhamad Khoiru , Noda Keigo
Published: July 2021

Ratoon system is a method of rice cultivation that produces new tillers after the mother plant is harvested and is continued by maintaining and caring for the shoots of the mother plant. In Indonesia, SALIBU and SINGGANG, which are types of rice ratooning, have been developed for Sumatra and Java regions, respectively. SALIBU is an innovation or a modification of the rice ratoon system that focuses on maintaining the time of fertigation and cutting of plant height. SINGGANG, on the other hand, is a rice ratoon system in which the management of fertigation and cutting is not considered. Both systems have not yet been implemented outside their places of origin. This study aims to compare the conventional and modified rice ratoon systems considering parameters such as soil properties, nutrient uptake, and the growth and yield of rice. The effects of rice ratoon systems (SALIBU and SINGGANG,), soil types (Inceptisols, Alfisols, and Vertisols), and cultivars (Pandan Wangi and Mekongga) were evaluated. All treatments were evaluated in a completely randomized design with three replicates in the net house. The results showed that the soil porosity in SINGGANG (48.89%) and SALIBU (46.78%) systems was higher than the conventional system (43.17%) in the Inceptisol soil and Pandan Wangi cultivars. Moreover, SINGGANG had a positive effect on the physical properties of soil (porosity and permeability); whereas, SALIBU had a positive effect on the chemical properties of soil (pH and organic carbon). In contrast, the agronomic parameters showed that the weights of dry matter and dry yield for SINGGANG were 44.96 and 23.09 g per plant clump, respectively, while those for SALIBU were 55.54 and 25.74 g per plant clump, respectively. These were lower than the conventional system (63.18 and 31.21 g per plant clump, respectively). Thus, we concluded that the SINGGANG and SALIBU ratoon systems had a positive impact on soil properties, but both systems could not promote higher rice production than the mother plant in all soil types and cultivars.
ABOUT THE INFLUENCE OF VIBRATIONS OF THE CONVEYED LIQUID ON THE AREA OF STABILITY OF A CLOSED SYSTEM AUTOMATIC VEHICLE COURSE CONTROL
Authors: Aleksandrov Yevgen , Aleksandrova Tetyana , Grigoriev Alexander , Morhun Yaroslav
Published: July 2021

The existing publications that investigate vehicle course stability optimization were analyzed. A mathematical model, which describes the disturbed movement of a car with a tank, was compiled. This model allows to consider the liquid free surface oscillations and determine their effect on the car course stability during constant motion or emergency braking. There was described the main information regarding the car that was used to perform mathematical calculations. An algorithm was developed for deriving the characteristic equation for a complex system of differential equations describing dynamic changes in the movement parameters of a car, oscillations of partial layers of liquid in a tank and the operation of an electromagnetic drive of the control valve and an electronic PID controller for a two-circuit system for ensuring course stability. Based on the developed mathematical model, the influence of forced oscillations of the fluid on the stability area of the system built in the plane of variable parameters of the controller is investigated. It is shown that low-frequency oscillations of the free surface of a liquid lead to a significant reduction in the stability area, which indicates the need to consider such oscillations when solving problems of analysis and synthesis of this system. It was found that for a car with a tank, where low-frequency transverse oscillations of the liquid occur, which are accompanied by a redistribution of mass and disturb the movement, an increase of the speed unambiguously leads to a deterioration in directional stability. That enables exclusion of speed from the number of variable parameters and significantly simplify the problem being solved. The calculations for cases with different loading levels were performed. It was found out that the level of liquid in the tank, considering its relationship with the speed, has an ambiguous effect on the car course stability, and it is unacceptable to limit the research calculations to the case with 50 % load. Instead of this, it is necessary to find a line that bends from above the stability boundaries that correspond to many liquid levels.

Keywords: fluid vibrations; exchange rate stability system; area of stability; tank; PID-controller; parameters.
DEVELOPMENT AND COMPARATIVE ANALYSIS OF SEMI-SUPERVISED LEARNING ALGORITHMS ON A SMALL AMOUNT OF LABELED DATA
Authors: Yamkovyi Klym
Published: July 2021

The paper is dedicated to the development and comparative experimental analysis of semi-supervised learning approaches based on a mix of unsupervised and supervised approaches for the classification of datasets with a small amount of labeled data, namely, identifying to which of a set of categories a new observation belongs using a training set of data containing observations whose category membership is known. Semi-supervised learning is an approach to machine learning that combines a small amount of labeled data with a large amount of unlabeled data during training. Unlabeled data, when used in combination with a small quantity of labeled data, can produce significant improvement in learning accuracy. The goal is semi-supervised methods development and analysis along with comparing their accuracy and robustness on different synthetics datasets. The proposed approach is based on the unsupervised K-medoids methods, also known as the Partitioning Around Medoid algorithm, however, unlike Kmedoids the proposed algorithm first calculates medoids using only labeled data and next process unlabeled classes – assign labels of nearest medoid. Another proposed approach is the mix of the supervised method of K-nearest neighbor and unsupervised K-Means. Thus, the proposed learning algorithm uses information about both the nearest points and classes centers of mass. The methods have been implemented using Python programming language and experimentally investigated for solving classification problems using datasets with different distribution and spatial characteristics. Datasets were generated using the scikit-learn library. Was compared the developed approaches to find average accuracy on all these datasets. It was shown, that even small amounts of labeled data allow us to use semi-supervised learning, and proposed modifications ensure to improve accuracy and algorithm performance, which was demonstrated during experiments. And with the increase of available label information accuracy of the algorithms grows up. Thus, the developed algorithms are using a distance metric that considers available label information.

Keywords: Unsupervised learning, supervised learning. semi-supervised learning, clustering, distance, distance function, nearest neighbor, medoid, center of mass.