bluuebunny/crossref_metadata_2025 huggingface dataset:
Malaria Elimination in Costa Rica: Changes in Treatment and Mass Drug Administration
Authors: Chaves Luis F. , Huber John H. , Rojas Salas Obdulio , Ramírez Rojas Melissa , Romero Luis M. , Gutiérrez Alvarado José M. , Perkins T. Alex , Prado Monica , Rodríguez Rodrigo Marín
Published: June 2020

Costa Rica is a candidate to eliminate malaria by 2020. The remaining malaria transmission hotspots are located within the Huétar Norte Region (HNR), where 90% of the country’s 147 malaria cases have occurred since 2016, following a 33-month period without transmission. Here, we examine changes in transmission with the implementation of a supervised seven-day chloroquine and primaquine treatment (7DCPT). We also evaluate the impact of a focal mass drug administration (MDA) in January 2019 at Boca Arenal, the town in HNR reporting the greatest local transmission. We found that the change to a seven-day treatment protocol, from the prior five-day program, was associated with a 98% reduction in malaria transmission. The MDA helped to reduce transmission, keeping the basic reproduction number, RT, significantly below 1, for at least four months. However, following new imported cases from Nicaragua, autochthonous transmission resumed. Our results highlight the importance of appropriate treatment delivery to reduce malaria transmission, and the challenge that highly mobile populations, if their malaria is not treated, pose to regional elimination efforts in Mesoamerica and México.
A Non-Delay Error Compensation Method for Dual-Driving Gantry-Type Machine Tool
Authors: Liu Qi , Lu Hong , Zhang Xinbao , Qiao Yu , Cheng Qian , Zhang Yongquan , Wang Yongjing
Published: June 2020

The drive at the center of gravity (DCG) principle has been adopted in computer numerical control (CNC) machines and industrial robots that require heavy-duty and quick feeds. Using this principle requires accurate corrections of positioning errors. Conventional error compensation methods may cause vibrations and unstable control performances due to the delay between compensation and motor motion. This paper proposes a new method to reduce the positioning errors of the dual-driving gantry-type machine tool (DDGTMT), namely, a typical DCG-principle-based machine tool. An error prediction method is proposed to characterize errors online. An algorithm is proposed to quickly and accurately compensate the errors of the DDGTMT. Experiment results verify that the non-delay error compensation method proposed in this paper can effectively improve the accuracy of the DDGTMT.
Physical and Mathematical Modelling of Mass Transfer in Ladles due to Bottom Gas Stirring: A Review
Authors: Conejo Alberto N.
Published: June 2020

Steelmaking involves high-temperature processing. At high temperatures mass transport is usually the rate limiting step. In steelmaking there are several mass transport phenomena occurring simultaneously such as melting and dissolution of additions, decarburization, refining (De-P and De-S), etc. In ladle metallurgy, refining is one of the most important operations. To improve the rate of mass transfer bottom gas injection is applied. In the past, most relationships between the mass transfer coefficient (mtc) and gas injection have been associated with stirring energy as the dominant variable. The current review analyzes a broad range of physical and mathematical modeling investigations to expose that a large number of variables contribute to define the final value of the mtc. Since bottom gas injection attempts to improve mixing phenomena in the whole slag/steel system, our current knowledge shows limitations to improve mixing conditions in both phases simultaneously. Nevertheless, some variables can be optimized to reach a better performance in metallurgical ladles. In addition to this, the review also provides a state of the art on liquid–liquid mass transfer and suggests the current challenges in this field.
Simultaneous Electrochemical Generation of Ferrate and Oxygen Radicals to Blue BR Dye Degradation
Authors: Chiliquinga Mauricio , Espinoza-Montero Patricio J. , Rodríguez Oscar , Picos Alain , Bandala Erick R. , Gutiérrez-Granados S. , Peralta-Hernández Juan M.
Published: June 2020

In this study, electro-oxidation (EOx) and in situ generation of ferrate ions [Fe(VI)] were tested to treat water contaminated with Blue BR dye (BBR) using a boron-doped diamond (BDD) anode. Two electrolytic media (0.1 M HClO4 and 0.05 M Na2SO4) were evaluated for the BDD, which simultaneously produced oxygen radicals (•OH) and [Fe(VI)]. The generation of [Fe(VI)] was characterized by cyclic voltammetry (CV) and the effect of different current intensity values (e.g., 7 mA cm−2, 15 mA cm−2, and 30 mA cm−2) was assessed during BBR degradation tests. The discoloration of BBR was followed by UV-Vis spectrophotometry. When the EOx process was used alone, only 78% BBR discoloration was achieved. The best electrochemical discoloration conditions were found using 0.05 M Na2SO4 and 30 mA cm−2. Using these conditions, overall BBR discoloration values up to 98%, 95%, and 87% with 12 mM, 6 mM, and 1 mM of FeSO4, respectively, were achieved. In the case of chemical oxygen demand (COD) reduction, the EOx process showed only a 37% COD reduction, whereas combining [Fe(VI)] generation using 12 mM of FeSO4 achieved an up to 61% COD reduction after 90 min. The evolution of reaction byproducts (oxalic acid) was performed using liquid chromatography analysis.
Carbon Sequestration in Support of the “4 per 1000” Initiative Using Compost and Stable Biochar from Hazelnut Shells and Sunflower Husks
Authors: Mikula Klaus , Soja Gerhard , Segura Cristina , Berg Alex , Pfeifer Christoph
Published: June 2020

The achievement of carbon neutrality till 2050 will require the deployment of negative carbon emission technologies like the production and soil incorporation of biochar, produced from pyrolyzed plant-based residues. The carbon sequestration potential of biochar (BC) from hazelnut (Corylus avellana L.) shells (HNS) and sunflower (Helianthus annuus L.) husks (SFH) was evaluated when the biomass was carbonized in a fixed bed reactor, in a rotary kiln and in a screw reactor. In all tested reactors, higher temperatures (>500 °C) and longer retention times increased the C concentration and stability of the biochar, with negligible effects of the reactor type and feedstock. A national case study was developed for Austria concerning the potential use of SFH- and HNS-BC in combination with compost for reaching the “4 per mille” objective. An annual soil organic carbon increase of 2.5 Mt C would be needed, requiring amendment rates of 2.2 Mt C a−1 for all annual crop areas and 0.3 Mt C a−1 for all vineyards and orchards. If compost only were used, the annual cost would be about 200 EUR ha−1 but short-term re-mineralization would have to be considered. If the more recalcitrant biochar were used only, about 2.3 t BC ha−1 would be needed at a cost of 1400–1870 EUR ha−1. The study shows in principle the feasibility of applying compost–biochar mixtures for achieving the “4 per mille” objective but in practice, supplemental soil management strategies for sequestering C will be required.
The Reliability and Validity of Current Technologies for Measuring Barbell Velocity in the Free-Weight Back Squat and Power Clean
Authors: Thompson Steve W. , Rogerson David , Dorrell Harry F. , Ruddock Alan , Barnes Andrew
Published: June 2020

This study investigated the inter-day and intra-device reliability, and criterion validity of six devices for measuring barbell velocity in the free-weight back squat and power clean. In total, 10 competitive weightlifters completed an initial one repetition maximum (1RM) assessment followed by three load-velocity profiles (40–100% 1RM) in both exercises on four separate occasions. Mean and peak velocity was measured simultaneously on each device and compared to 3D motion capture for all repetitions. Reliability was assessed via coefficient of variation (CV) and typical error (TE). Least products regression (LPR) (R2) and limits of agreement (LOA) assessed the validity of the devices. The Gymaware was the most reliable for both exercises (CV < 10%; TE < 0.11 m·s−1, except 100% 1RM (mean velocity) and 90‒100% 1RM (peak velocity)), with MyLift and PUSH following a similar trend. Poorer reliability was observed for Beast Sensor and Bar Sensei (CV = 5.1–119.9%; TE = 0.08–0.48 m·s−1). The Gymaware was the most valid device, with small systematic bias and no proportional or fixed bias evident across both exercises (R2 > 0.42–0.99 LOA = −0.03–0.03 m·s−1). Comparable validity data was observed for MyLift in the back squat. Both PUSH devices produced some fixed and proportional bias, with Beast Sensor and Bar Sensei being the least valid devices across both exercises (R2 > 0.00–0.96, LOA = −0.36–0.46 m·s−1). Linear position transducers and smartphone applications could be used to obtain velocity-based data, with inertial measurement units demonstrating poorer reliability and validity.
Using Landsat Data to Detect Change in Live to Recently (<6 Months) Dead Coral Cover in the Western Xisha Islands, South China Sea
Authors: Zuo Xiuling , Su Fenzhen , Zhang Junjue , Wu Wenzhou
Published: June 2020

The amount of live and dead coral is related to recruitment, but differentiating them by remote sensing techniques is difficult. We measured change in the amount of live, bleached, and recently (<6 months) dead coral cover (CCA6) for an island archipelago in the South China Sea. Six Landsat 4/7 ETM/8 OLI images from 1989–1990, 2005, and 2014 were analyzed to assess changes in CCA6 at 14 coral reefs in the western Xisha Islands. Satellite images were georectified and calibrated to remote sensing reflectance. Models for three shallow water (<6 m) geomorphic zones throughout the western Xisha Islands are proposed based on ground-truthed data collected in 2014 and satellite-determined spectral values for 2014 images. Nonlinear models based on Landsat image blue spectral bands for reef slope and lagoon habitats, and green bands for reef flat habitats, are determined as optimal models. Significant changes in CCA6 from 2005 to 2014, and changes in coral reefs and geomorphic zones, correlate with increased numbers of both crown-of-thorns starfish, and sea surface temperature in 2007. Detecting change in CCA6 by remote sensing can provide large-scale information of value for coral reef management, restoration, and protection.
Influence of the Covid-19 Crisis on Global PM2.5 Concentration and Related Health Impacts
Authors: Karkour Selim , Itsubo Norihiro
Published: June 2020

The decrease in human activities following the COVID-19 pandemic caused an important change in PM2.5 concentration, especially in the most polluted areas in the world: China (44.28 and 18.88 µg/m3 in the first quarters of 2019 and 2020, respectively), India (49.84 and 31.12, respectively), and Nigeria (75.30 and 34.31, respectively). In this study, satellite observations from all around the world of PM2.5 concentration were collected on the grid scale with a high resolution of 0.125° (about 15km). Population data for 2020 were also collected on the same scale. Statistical data from the World Health Organization (WHO) concerning the diseases caused by air pollution (e.g., stroke) were obtained for each country to determine the change in mortality between the first quarter of 2019 and the first quarter of 2020. Expressed in disability-adjusted life years (DALY), it was found that the largest reductions were observed for China (−13.9 million DALY), India (−6.3 million DALY), and Nigeria (−2.3 million DALY).
Image-Level Structure Recognition Using Image Features, Templates, and Ensemble of Classifiers
Authors: Khan Altaf , Chefranov Alexander , Demirel Hasan
Published: June 2020

Image-level structural recognition is an important problem for many applications of computer vision such as autonomous vehicle control, scene understanding, and 3D TV. A novel method, using image features extracted by exploiting predefined templates, each associated with individual classifier, is proposed. The template that reflects the symmetric structure consisting of a number of components represents a stage—a rough structure of an image geometry. The following image features are used: a histogram of oriented gradient (HOG) features showing the overall object shape, colors representing scene information, the parameters of the Weibull distribution features, reflecting relations between image statistics and scene structure, and local binary pattern (LBP) and entropy (E) values representing texture and scene depth information. Each of the individual classifiers learns a discriminative model and their outcomes are fused together using sum rule for recognizing the global structure of an image. The proposed method achieves an 86.25% recognition accuracy on the stage dataset and a 92.58% recognition rate on the 15-scene dataset, both of which are significantly higher than the other state-of-the-art methods.
Environmental and Economic Benefits of a Battery Electric Vehicle Powertrain with a Zinc–Air Range Extender in the Transition to Electric Vehicles
Authors: Tran Manh-Kien , Sherman Steven , Samadani Ehsan , Vrolyk Reid , Wong Derek , Lowery Mitchell , Fowler Michael
Published: June 2020

Emissions and pollution from the transportation sector due to the consumption of fossil fuels by conventional vehicles have been negatively affecting the global climate and public health. Electric vehicles (EVs) are a cleaner solution to reduce the emission and pollution caused by transportation. Lithium-ion (Li-ion) batteries are the main type of energy storage system used in EVs. The Li-ion battery pack must be considerably large to satisfy the requirement for the vehicle’s range, which also increases the cost of the vehicle. However, considering that most people use their vehicles for short-distance travel during daily commutes, the large pack is expensive, inefficient and unnecessary. In a previous paper, we proposed a novel EV powertrain design that incorporated the use of a zinc–air (Zn–air) battery pack as a range-extender, so that a smaller Li-ion pack could be used to save costs. The design and performance aspects of the powertrain were analyzed. In this study, the environmental and economic benefits of the proposed dual-battery powertrain are investigated. The results from the new powertrain were compared with values from a standard EV powertrain with one large Li-ion pack and a conventional internal combustion engine vehicle (ICEV) powertrain. In addition, an air pollution model is developed to determine the total amount of pollution released by the transportation sector on Highway 401 in Ontario, Canada. The model was then used to determine the effects of mass passenger EV rollout on pollution reduction.
Design, Dimensioning and Simulation of Inerters for the Reduction of Vehicle Wheel Vibrations—Case Studies
Authors: Borowski Julian , Stetter Ralf , Rudolph Stephan
Published: June 2020

For the last two decades, a novel mechanical system has received increasing attention—the inerter. An inerter is a system that can store mechanical energy for a rather short amount of time and behaves analogously to a capacitor in electrical engineering. Until today, only a few inerter applications have been reported. In a vehicle suspension, an inerter can be used to reduce wheel vibrations. This paper demonstrates the application potential of the novel mechanical system and describes the design and dimensioning of an inerter for the reduction of these kind of wheel vibrations for two completely different vehicle concepts. The first application concerns a Formula Student race car in which the main objective represents the maximization of the mechanical grip to improve lap times. For the inerter dimensioning in a racing car, lightweight design is a major issue. The second application is an agricultural tractor in which the focus is on the reduction of the ground pressure to protect the environment as well as on a very robust and compact realization of the inerter. A detailed simulation of both cases allows a qualitative and quantitative assessment of the wheel vibration reduction potential. In both applications, a considerable improvement potential could be identified which amounts, in the case of the race car, to a reduction of wheel oscillation of about 21% and for the tractor to a wheel vibration reduction potential of up to 54%.
Households’ Willingness to Contribute to Irrigation Infrastructure in Rural China: The Role of Lineage and Outmigration
Authors: Yang Yu , Wang Fang
Published: June 2020

Rural areas worldwide are witnessing an increase in outmigration, which has led to an impact on irrigation infrastructure management. In many cases, governments in transition economies find it difficult to support small-scale irrigation infrastructure programs. This research aims to examine the extent to which the recent “lineage revival” in China to increase the importance of lineage networks can reduce the negative effects of outmigration in rural communities. Analyzing a rural community in Sichuan Province, the findings reveal that while there is no significant effect of outmigration on respondents’ willingness to contribute toward irrigation infrastructure, and while lineage networks can enhance this willingness, such networks also reduce participation if non-lineage members are among the beneficiaries. Finally, the study provides an understanding of how informal lineage networks may facilitate contribution to irrigation infrastructure.
Frequency response analysis methods for open-loop servo drives and control systems
Authors: Belonogov Oleg B.
Published: June 2020

The paper presents results of development of frequency response analysis methods for open-loop servo drives and control systems, which use frequency response data of closed-loop servo drives and control systems obtained using Fourier and Laplace transforms of transient response calculated using their linear or linearized math models. The methods that have been developed can be used for approximate calculation of frequency response of servo drives and control systems based on their math models with slight non-linearities. Equations are derived for calculating frequency response of open-loop servo drives and control systems for several particular cases of feedback loop transfer function. The paper studies the efficiency of the developed frequency response analysis methods for open-loop servo drives and control systems.
The obtained frequency response data for open-loop servo drives and control systems can be used for evaluating the amplitude and phase stability margins for these entities.
Key words: frequency response; open-loop servo drive; control systems.
Emergency recovery of the crew of the manned transportation spacecraft Soyuz during ascent to orbit (towards a history of development of the unique space hardware)
Authors: KHAMITS Igor I. , LEBEDEV Gennady V. , OVCHINNIKOV Aleksandr G. , KHOMYAKOV Mikhail K. , OVSYANNIKOVA Natalya Yu. , EVSEENKO Olga V.
Published: June 2020

The paper is dedicated to the development of the equipment for emergency recovery of the Soyuz spacecraft crew during ascent to orbit, and contains a summary of research, engineering, design and experimental studies, carried out by specialists of RSC Energia (formerly OKB-1), TsNIIMash (formerly NII-88), TsAGI and many other companies that were involved in the development of the emergency crew rescue equipment.
The paper discusses layout arrangements for the emergency escape nose section, algorithms for the operation of the emergency rescue system, provides results of simulations of the motion of the emergency escape nose section and structural parts of the spacecraft in case of the launch vehicle failure, provides brief results of the analysis of actual cases of emergency crew rescue, including the failure of Soyuz-FG launch vehicle on October 11, 2018.
Key words: descent vehicle, emergency escape nose section, separation equipment.
Using super-capacitor units in the power supply system of re-entry vehicle of a crew transportation spacecraft
Authors: KHAVANOV Egor S. , BESCHASTNY Roman A. , FATEEV Dmitry A.
Published: June 2020

The paper presents a configuration for the Power Supply System (PSS) of a Re-entry Vehicle (RV) of a Crew Transportation Spacecraft (CTS) based on expendable batteries and autonomous current sources specially designed to support electrical pulsed loads of CTS RV during descent. The paper reviews some special features of such a configuration.
It present a CTS RV PSS option which has hybrid energy storage devices based on Li-ion storage battery and Super-Capacitor Units (SCU) packaged in a single housing.
It present a CTS RV PSS option which has Li-ion storage batteries to support steady-state onboard loads and patch cables based on super-capacitors to support pulse loads (initiation of pyros of the CTS RV soft landing thrusters).
Schematics have been developed for the patch cable with a super-capacitor unit (SCU–patch cable), which were used to refine its electrical parameters to take into account the highest pulsed load requirements for an RV by constructing a math model of the SCU–patch cable in MATLAB/Simulink and running a series of simulations. The paper presents simulation results drawing conclusions about the practicability of using such a device.
Key words: reentry vehicle, patch cable, super-capacitor unit, lithium-ion battery, crew transportation spacecraft, math model.
O protagonismo da leitura no projeto de formação integralista: livros no jornal Flamma Verde - Florianópolis (SC) - entre 1936-1938
Authors: Pontes Gustavo Tiengo , Cunha Maria Teresa Santos
Published: June 2020

O objetivo deste artigo é dar visibilidade à coluna “Bibliografia”, publicada no jornal integralista Flamma Verde, editado em Florianópolis (SC) entre 1936-1938. Nessa coluna, constante em diversas edições desse jornal, foi indicada uma série de livros que apresentavam breves comentários cujo objetivo era “controlar” mais de perto a leitura e seus sentidos ligados ao projeto de formação integralista. A partir da análise de algumas dessas obras e de seus comentários, busca-se tecer considerações sobre aspectos relativos ao modelo de formação posto em circulação pela difusão dessa série de livros.
Leituras, teorias e práticas
Authors: Marques Davina
Published: June 2020

Leituras, teorias e práticas
TOPRAK ÖRNEKLERİNDE DOĞAL RADYOAKTİVİTE (226Ra, 232Th VE 40K) VE RADYASYON TEHLİKELERİNİN DEĞERLENDİRİLMESİ
Authors: AKÖZCAN Serpil
Published: June 2020

Bu çalışmada Türkiye’de Edirne ve Kırklareli arasından toplanan toprak örneklerinde 226Ra, 232Th ve 40K aktivite konsantrasyonları HPGe gama spektrometre sistemi kullanılarak ölçülmüştür. Çalışma alanında 226Ra, 232Th ve 40K radyonüklid konsantrasyonları sırası ile 10.5±1.0 ile 33.3±2.7, 17.4±0.7 ile 56.0±1.9 ve 102.1±14.5 ile 1126.9±15.8 Bq kg-1 arasında değişmektedir. Bu doğal radyonüklidlerin aktivite konsantrasyonları diğer çalışmalarda elde edilen sonuçlar ile karşılaştırılmıştır. Ayrıca havada soğurulan gama doz oranı, yıllık etkin doz oranı ve radyum eşdeğer aktivitesi de (Raeq) insanlar için radyasyon tehlikesini belirlemek amacıyla değerlendirilmiştir.
The Four Most Crucial Elements of Conducting Sales Territory Segmentation at Scale
Authors: Iyer Venketesh
Published: June 2020

The most fundamental building block of any organization is Data; data is critical to any organization’s success. Getting data governance and quality right, can significantly improve the quality of sales planning and result in an intelligent data-driven territory allocation process. On the contrary, poor data quality and loose governance models often lead to laborious territory planning cycles, sub-optimal sales rep to account mapping and poor customer experience. Poor data quality could also result in an over- or under-allocation of a sales person’s territory and can result in poor customer experience and even attrition. On the operational side, this could result in poor forecasting, inefficient revenue attribution, tedious reporting exercises (due to lack of data modeling), and a significantly delayed root cause analysis when companies miss financial goals.
Peningkatan Koping Keluarga Pasien Skizofrenia melalui Intervensi Mindfulness
Authors: Kitu Irene Febriany Mamo , Dwidiyanti Meidiana , Wijayanti Diyan Yuli
Published: June 2020

Keluarga mempunyai beban yang besar dalam merawat anggota keluarga yang mengalami Skizofrenia, dimana stigma yang keliru dari masyarakat menjadi stresor tambahan bagi keluarga. Dalam merawat anggota keluarga yang mengalami Skizofrenia, keluarga memerlukan koping yang efektif sehingga perawatan yang diberikan dapat optimal. Salah satu cara yang dapat dilakukan oleh keluarga adalah dengan meningkatkan kesadaran dan perhatian melalui intervensi mindfulness. Tujuan untuk mengetahui pengaruh intervensi mindfulness terhadap tingkat koping keluarga pasien Skizofrenia. Penelitian ini menggunakan desain quasi experiment dengan rancangan pre-post test with control grup design. Teknik sampling yang digunakan adalah purposive sampling dengan populasi sebanyak 50 keluarga yang terbagi atas 25 kelompok intervensi dan 25 kelompok control, dengan menggunakan instrument Ways Of Coping. Hasil ditunjukkan adanya pengaruh terhadap tingkat koping keluarga pasien Skizofrenia  sesudah diberikan intervensi mindfulness dengan nilai p = 0,000. Pemberian intervensi mindfulness dapat membantu keluarga meningkatkan koping yang efektif dengan cara lebih fokus dan menerima keadaan yang terjadi tanpa menghakiminya, sehingga pemberian pelayanan tidak hanya berfokus kepada pasien saja tetapi juga mencakup keluarga pasien.Kata Kunci: koping keluarga; skizofrenia; mindfulness IMPROVEMENT OF SCIZOFRENIA PATIENTS’ FAMILY THROUGH MINDFULNESS INTERVENTION ABSTRAKThe family has a big burden in caring for family members who experience Schizophrenia, where the wrong stigma from the community becomes an additional stressor for the family. In treating family members who have Schizophrenia, families need effective coping so that the care provided can be optimal. One way that families can do is to increase awareness and attention through mindfulness interventions. This study was to determine the effect of mindfulness interventions on the level of coping in families of Schizophrenia patients. This research used a quasi-experimental design with a pre-post-test with control group design. The sampling technique used was purposive sampling with a population of 50 families divided into 25 intervention groups and 25 control groups. The study was conducted on 50 families using the Ways of Coping instrument. Results: There was an influence on the level of coping in Schizophrenia family after mindfulness intervention with p = 0,000. Conclusion: Providing mindfulness interventions can help families improve effective coping by focusing more and accepting the circumstances that occur without judging them, so that service delivery does not only focus on the patient but also includes the patient's familyKeywords: family coping; schizophrenia; mindfulness
Pemanfaatan Media Edukatif Snake Ledder Terhadap Peningkatan Pengetahuan pada Kader UKS
Authors: Prihatin Tutwuri , Setyaningsih Nanik
Published: June 2020

Program kader Usaha Kesehatan Sekolah (UKS) diharapkan meningkatkan keterlaksanaan UKS dengan baik. Namun pada kenyataannya seorang kader UKS seringkali tidak berfungsi dengan baik karena keterbatasan dalam pemahaman akan tugasnya. Salah satu langkah pembelajaran yang dapat meningkatkan pengetahuan kader UKS dilakukan dengan menggunakan media edukatif yang memiliki konsep belajar sambil bermain, seperti permainan snake ladder. Tujuan : Untuk mengetahui efektifitas pemanfaatan media edukatif snake ladder terhadap peningkatan pengetahuan pada kader UKS di SD Negeri Pedurungan Tengah 02 Semarang. Metode : Jenis penelitian kuantitatif dengan quasy experiment melalui pendekatan one group pretest and post test design pada sampel 20 kader UKS. Uji statistik menggunakan uji Wilcoxon. Hasil : terdapat perbedaan pengetahuan kader UKS sebelum dan sesudah diberikan permainan edukatif snake ladder dengan perbandingan rerata sebesar 11,7 (pengetahuan cukup) dan sebesar 16,2 (pengetahuan baik), serta dengan p value  0,000.  Pembelajaran dengan media permainan edukatif snake ladder dapat meningkatkan pengetahuan kader UKS. Kata Kunci : kader; usaha kesehatan sekolah; pengetahuan; snake ladder.THE USE OF SNAKE LADDER EDUCATIVE MEDIA IN IMPROVING KNOWLEDGE OF SCHOOL HEALTH UNIT AbstractSchool Health Unit cadre program is expected to improve the implementation of health at school. This function does not meet properly due to limitations of the understanding of job description. One of the learning steps that can increase the knowledge of School Health Unit cadres is using educational media that have the concept of learning while playing, such as snake ladder games. This study was to determine the effectiveness of the use of snake ladder educative media to increase knowledge of School Health Unit cadres at Pedurungan Tengah Elementary School 02 of Semarang. This study was quantitative research with quasy experiment through on-group pretest and post-test design approach in a sample of 20 UKS cadres. Statistical tests used Wilcoxon test. The result obtained that there was a difference in the knowledge of School Health Unit cadres before and after given the snake ladder educative media with an average ratio of 11.7 (enough knowledge) and 16.2 (good knowledge), and with a p value of 0,000. Learning with snake ladder educational game media can increase the knowledge of UKS cadres.Keywords: cadre; school health; knowledge; snake ladder.
Senam Hamil untuk Meningkatkan Durasi Tidur pada Ibu Hamil Trimester III
Authors: Hamdiah Hamdiah , Etty Triyana , Indarwati Novi
Published: June 2020

ABSTRAKWorld Health Organization (WHO) memperkirakan setiap harinya 800 perempuan meninggal akibat komplikasi kehamilan dan proses melahirkan. Kematian maternal indikator penting dalam keberhasilan program kesehatan ibu sekaligus salah satu indikator dalam menggambarkan derajat kesehatan masyarakat. Senam hamil merupakan alternatif terapi latihan berupa aktivitas atau gerak yang diberikan pada ibu hamil untuk mempersiapkan diri, baik persiapan fisik maupun psikologis dalam kehamilan dan proses kelahiran. Tujuan penelitian ini adalah mengetahui pengaruh senam hamil terhadap durasi Tidur ibu hamil trimester III di Klinik Etam Tahun 2019. Jenis penelitian yang digunakan adalah Quasi Eksperimen  desain penelitian  non equivalent control group dengan jumlah sampel 20 Responden dengan analisis data menggunakan uji Wilcoxon. Hasil penelitian didapatkan bahwa nilai rata-rata durasi tidur pada kelompok intervensi 9,6 jam/hari dan pada kelompok control memiliki nilai rata-rata 6,4 jam/hari. Kelompok intervensi didapatkan nilai p value 0,005 dan kelompok control 0,157. Ada perbedaan efektifitas senam hamil terhadap durasi tidur pada ibu hamil trimester III.                                                    Kata kunci : durasi tidur; ibu hamil; senam hamil  PREGNANCY EXERCISE TO IMPROVE SLEEP DURATION IN TRIMESTER III PREGNANT MOTHERABSTRACTWorld Health Organization (WHO) estimates that every day, 800 women die due to pregnancy complications and childbirth. Maternal mortality is an important indicator in the success of maternal health programs as well as one indicator in describing the degree of public health. Pregnancy exercise is an alternative exercise therapy in the form of activities or movements given to pregnant women to prepare themselves, both physical and psychological preparation in pregnancy and birth process. The aim of this research was to identify effectiveness pregnant exercises towards sleep duration in pregnant mother trimester III in Etam Clinic in 2019. Type of research was quasi-experimental design with a non equivalent control group with 20 respondents. Data analysis used Wilcoxon test. The results showed that the average value of sleep duration after pregnancy exercise in the intervention group 9.6 and in the control group had an average value of 6.4. The wilcoxon test in the intervention group obtained p value 0.005 and the control group 0.157. This means that Ho is rejected; there is a difference in the effectiveness of pregnancy exercises against sleep duration in third trimester pregnant women at the etam clinic in 2019. Keyword: pregnancy exercise; sleep duration; pregnancy
EVALUATION OF THE RESIDUAL STRESSES LEVEL FORMED DURING THE COOLING OF THE TITANIUM-STEEL BIMETAL
Authors: Shmorgun V. G. , Gurevich L. M. , Slautin O. V. , Kulevich V. P.
Published: June 2020

The level of internal stresses arising in the titanium VT1-0 + steel 08kp bimetal during cooling was estimated by methods of finite element modeling. It is shown that the intermetallic layer formed during diffusion annealing leads to a sharp local increase in the residual internal equivalent Mises stresses with a slight decrease in the stresses normal to the interface.
STRENGTH ANALYSIS OF THE SPLIT RING OF THE TUBING HANGER LOCKDOWN MECHANISM
Authors: Timofeev E. K. , Zhukov B. A. , Godenko A. E. , Lipatov E. Yu.
Published: June 2020

The article discusses the analysis of the stress-strain state of the split ring of the locking mechanism of the pump and compressor pipe suspension in the unpressed position by analytical and numerical methods. In the analysis by numerical method, the rationale for using an elastic-plastic model of the material is given and the structural strength is estimated.
SIMULATION OF THE STRESSED-DEFORMED STATE OF THE EXPLOSION-WELDING FIVELAYERS TITANO-STEEL COMPOSITE AFTER HOT ROLLING
Authors: Gurevich L. M. , Arisova V. N. , Izyumsky V. A.
Published: June 2020

Using experimental data, 3D modeling options were verified, which describe the strain during rolling of layers of a titanium-steel composite and based on the variational principles of continuum mechanics and the finite element method.
NOMOGRAM FOR DETERMINING THE FORCE OF REMOVAL FROM THE PUNCH FORGINGS WHEN PRESSING ON THE HOT STAMPING PRESS
Authors: Gurulev D. N. , Maksimuk V. S. , Palatkina L. V.
Published: June 2020

This paper describes a method of calculating the force to punch removal of large forgings in their manufacture by hot direct and inverse extrusion on the gyratory hot-stamp press. The proposed method has been developed taking into account the results of experimental studies.
INFLUENCE OF TECHNOLOGICAL MODES OF THERMOCHEMICAL TREATMENT ON THE QUALITY OF STRENGTHENING OF HIGHLY LOADED GEARS
Authors: Teldekov V. A. , Gurevich L. M.
Published: June 2020

The study of changes in the microstructure, thickness and hardness of diffusion coatings obtained by varying the carbon potential and the consumption of process gases at different stages of cementation and nitrocarburizing was carried out. The possibility of reducing energy consumption and the duration of thermochemical treatment with the provision of the required effective thickness of the hardened layer is established.
Apikasi Jasa Jahit Pakaian Berbasis mobile dengan Teknologi Location Based Services dan Metode SMART
Authors: Susandri Susandri , Spitri Hidaya , Lusiana Lusiana , Harianto Koko
Published: June 2020

Clothing tailor services are available in every region, but so far customers have to come to tailors to sew clothes. There is no application that makes it easy for service users and tailors to interact with each other. In order to help customers and tailors interact, a sewing service order system must be created. This research uses Location Based Service (LBS) technology as a guide for home and tailor locations the Simple Multi-Attribute Rating Techniqui (SMART) method for ranking the quality of tailor services. The steps used in this study consist of system analysis, system design and implementation. This research has produced applications that can facilitate customers and tailors to interact with each other use mobile technology
IMPLEMENTASI E-GOVERNMENT DALAM MENINGKATKAN PELAYANAN DESA (DESA SUMBERSUKO KABUPATEN MALANG)
Authors: Kadir Nurchaerani , Huda Nuzulul , Ningrum Eka Cahya , Puspiitasari Nanda Nafisah
Published: June 2020

Sistem e-government adalah salah satu kebijakan mendasar yang dapat mengubah kualitas layanan masyarakat dari konvensional ke modern. Pengembangan e-government merupakan upaya untuk meningkatkan kualitas pelayanan publik yang efektif dan efesien E-government dapat dimanfaatkan untuk menyediakan layanan publik dari pemerintah kepada masyarakat. Objek penelitian ini adalah Desa Sumbersuko yang terletak di Kabupaten Malang, dengan tujuan yang disetujui e-Government dan kemudian mengoptimalkan penggunaannya untuk bantuan pemerintah dalam pelayanan dan permintaan informasi publik. Sistem e-Government dibangun dengan framework laravel, berbasis situs web dengan database MySQL. Dengan adanya e-Government ini diharapkan dapat meningkatkan kualitas pelayanan publik yang efektif dan efesien.
FARKLI ÖĞRETİM PROGRAMLARININ SU İLE İLİŞKİLİ KAZANIMLAR AÇISINDAN İNCELENMESİ
Authors: URSAVAŞ Nazihan , AYTAR Ayşe , ALPAY Ebru
Published: June 2020

Her ne kadar dünyanın %71’i sularla kaplı olsa da, son yıllarda artan nüfus ve çevre sorunları nedeniyle suya ulaşım ve kişi başına düşen kullanılabilir su azalmıştır. Bu durumun önüne geçmek isteyen toplumlar, bilinçli bireylerin yetiştirilebilmesi için eğitimin önemine vurgu yapmışlardır. Bilinçli ve çevre dostu bireylerin yetiştirilmesine katkı sağlamak için insanın diğer canlılarla uyumlu bir şekilde yaşam sürdürülebilmesine yönelik bakış açısı kazandıracak ekosentrik anlayışın merkeze alınarak öğretim programlarının yeniden yapılandırılması gerektiği düşünülmektedir. Bu noktadan hareketle, mevcut çalışmada farklı öğretim programlarının su ile ilgili kazanımlar açısından incelenmesi amaçlanmıştır. Doküman analizi yöntemi ile gerçekleştirilen çalışmada, Fen Bilimleri, Fizik, Kimya ve Biyoloji öğretim programları ele alınmıştır. Elde edilen bulgulara göre, su ile ilgili en fazla kazanıma Fen bilimleri dersinde, en az kazanıma Biyoloji dersinde yer verilmiştir. Programlar incelendiğinde, kazanımların her bir ders için daha çok bilgi teması altında toplandığı görülmüştür. Bununla birlikte, tutum teması altında herhangi bir derse ait kazanım tespit edilmemiştir. Davranış teması altında sadece fen bilimleri dersine ait iki kazanımın yer aldığı belirlenmiştir. Halbuki çevre eğitimi bilişsel, duyuşsal ve davranışsal açıdan dönüşüm ile bir bütün olarak ele alınarak başarıya ulaşabilecektir. Bu noktada çevre eğitimi altında ele alınan ve disiplinler arası bir kavram olan suyun kazanımlara aracılığıyla daha fazla öğretim programlarında yer alması ve özellikle bu kazanımların tutum ve davranış boyutunda ele alınması gerektiği düşünülmektedir.
A Increased Curiosity Attitudes and Mathematics Learning Achievement Through the Realistic Mathematics Learning Model (PMR) in Elementary Schools
Authors: Muryaningsih Sri
Published: June 2020

Penelitian ini bertujuan untuk meningkatkan sikap rasa ingin tahu dan prestasi belajar peserta didik mata pelajaran matematika melalui model pembelajaran matematika realistik. Jenis Penelitian ini yaitu Penelitian Tindakan Kelas (PTK) yang terdiri dari dua siklus, satu siklus terdiri dari dua kali pertemuan. Subjek penelitian adalah peserta didik kelas V SD UMP. Tahapan kegiatan setiap siklus terdiri atas perencanaan (planning), Pelaksanaan tindakan (action), Observasi (observing) dan Refleksi (Reflecting). Pengumpulan data rasa ingin tahu dengan menggunakan lembar observasi rasa ingin tahu peserta didik sedangkan untuk mengumpulkan data prestasi belajar peserta didik dengan menggunakan lembar evaluasi yang diberikan pada setiap akhir pertemuan. Berdasarkan hasil penelitian menunjukkan model pembelajaran matematika realistik (PMR) dapat meningkatkan sikap rasa ingin tahu dan prestasi belajar peserta didik pada materi keliling dan luas bangun datar pada kelas IV SD UMP.
Learning Thematic Covid-19 With SETS Vision Integrated Local Wisdom For Elementary School
Authors: Prastyo Erwin , Nuswantari Susmiatiningsih
Published: June 2020

Pembelajaran bervisi Science Environment Technology and Society (SETS)  mengajak untuk siswa memiliki kemampuan memandang sesuatu secara integratif sehingga dapat diperoleh pemahaman yang lebih mendalam tentang pengetahuan yang dimiliki. Tujuan penulisan artikel ini adalah sebagai upaya menggali potensi keterpaduan unsur-unsur SETS pada pandemi Covid-19 dan mengintegrasikan nilai kearifan lokal untuk mengembangkan pembelajaran tematik di Sekolah Dasar. Metode penelitian yang digunakan analisis kepustakaan. Hasil analisis menyimpulkan pembelajaran tematik Covid-19 bervisi SETS cocok diterapkan pada kondisi saat ini. Salah satu cara menanamkan kearifan lokal kepada siswa yaitu mengaitkannya pada pembelajaran tematik Covid-19.
INVESTIGATION OF EFFECTS OF RECYCLED AGGREGATES AND BLAST FURNACE SLAG ON PROPERTIES OF SELF-COMPACTING CONCRETE
Authors: Shahryari Leila , Nafisinia Maryam , Fattahi Mohammad Hadi
Published: June 2020

The effects of simultaneous use of recycled aggregates and ground blast furnace slag as a percentage of cement-constituting materials on different properties of fresh self-compacting concrete (SCC) are investigated in this study. To this end, three series of SCC mixtures with a fixed volume of cement paste equalling 380 ltr/m3 (2.36 gal/ft3) and the replacement ratio of coarse aggregates (fifty percent and one hundred percent) and total aggregates (zero percent, fifty percent and one hundred percent) were prepared. The water content ratios in the first, second and third series were 0.4, 0.45, and 0.5, respectively. The results of the compressive strength tests for 7-day, 14-day and 28-day cubic specimens and compressive strength and Brazilian test results for 28-day cylindrical specimens were used as control parameters governing the SCC resistive quality. The results of fresh SCC tests (including slump-flow and T50 tests, V-funnel test, and L-box test) showed that the negative effect of recycled fine aggregates on fresh SCC properties is significantly more than that of recycled coarse aggregate. However, recycled SCC with acceptable properties can be obtained with a slight increase in the amount of superplasticisers used in the presence of slag.
New data on the winged fruits of Carpolithus prangosoides Berry from the Eocene of western Tennessee and Kentucky.
Authors: Reback Rachel , Manchester Steven R.
Published: June 2020

We reexamined the morphology of the winged fruits Carpolithus prangosoides Berry (later synonym: Terminalia vera Berry) from the Eocene Claiborne Formation of southeastern North America, based on original and more recently collected specimens from several localities in Tennessee and Kentucky, USA. Physical and virtual sections of the fossils allow for more detailed documentation of wing morphology. The fruits are ellipsoidal, with five main lateral wings which bear radiating reticulate venation that forms loops near the margin. None of the fruits show pedicel or style remnants, but a basal pedicel scar was observed at the end opposite to the prominent, persistent sepals, indicating that the perianth was epigynous. A comparison with all known families having fin-winged fruits was conducted to assess possible affinities of C. prangosoides. Although no modern genus was found to match these fossils, the available characters, including the five sepals, suggest that it belongs to the Eudicot clade, likely in the Pentapetalae. However, the prior suggestion of combretaceous affinity is rejected based on differences in wing number and venation. We reviewed other North American reports of combretaceous fossils, concluding that only a few of them are reliable records for the family.
Characteristics of Immune and Endocrine Regulation Associated with MTNR1A
Gene Polymorphism (rs34532313) in the Child Population in the North of Siberia
Authors: Nikonoshina NA , Dolgikh OV
Published: June 2020

Introduction: Urban environment in large industrial centers is characterized by an excessive anthropogenic load that, combined with unfavorable climate conditions and distinctions of the geographical position of these territories, has negative effects on human health. Materials and methods: We analyzed characteristics of immune and endocrine regulation associated with various polymorphic variants of the gene of synchronization and circadian biorhythms of the melatonin receptor MTNR1A (rs34532313) in children living in an industrial center in the north of Siberia. The gene pool of the examined population is characterized by the predominance of the wild-type C allele (78.6%) and the maximum frequency of the CC genotype (67.7%) of the MTNR1A melatonin receptor gene (rs34532313). Results: We established that carriers of the homozygous TT-genotype of this section of the gene differed in a statistically significant (p<0.05) deficiency of T-helpers (CD3+CD4+), inhibition of IgG production, and activation of apoptosis processes (CD3+CD95+) relative to wild-type homozygotes, all attributed to inhibition of the immunomodulatory effect of melatonin. Carriers of variant homozygous genotypes showed a significantly (p<0.05) increased level of sensitization according to the general IgE criterion relative to heterozygotes and wild-type homozygotes against the background of a statistically significant (p<0.05) excess of the reference level of this indicator for the entire sample. Сonclusions: The revealed features of the immune status indicating the inhibition of cell and imbalance of humoral immune response against the general hypersensitivity and elevated cortisol significantly associate with the homozygous variant genotype of the gene locus MTNR1A (rs34532313) and form a complex of specific indicators of immune and endocrine regulation in children living in the north of Eastern Siberia that are associated with stress effects of adverse climatic and geographical factors of the region.
Antibiotic Sensitivity of Vibrio cholerae Non-O1/Non-O139 Serogroups
Isolated from Aquatic Ecosystems
Authors: Bereznyak E.A. , Trishina A.V. , Arhangelskaya I.V. , Simonova I.R. , Chemisova O.S.
Published: June 2020

Introduction: The wide spread of V. cholerae non-O1/non-O139 strains resistant to antibacterial drugs and the variability of antibiotic resistance spectrum are of interest and require regional monitoring studies. Our objective was to accumulate basic information on the state of antibiotic sensitivity/resistance of V. cholerae non-O1/non-O139 strains isolated from water bodies in the city of Rostov-on-Don. Materials and methods: Water samples were taken at stationary sites of open reservoirs from May through September 2016–2018. We established sensitivity/resistance of V. cholerae non-O1/non-O139 strains to antibiotics recommended for emergency prevention and treatment of cholera by their serial dilution in Mueller-Hinton agar. Results: We found that representatives of O16 and O76 serogroups prevailed among 361 isolated V. cholerae non-O1/non-O139 strains during the study period. Monoresistant phenotypes were represented by furazolidone-resistant strains. Conclusions: We established a statistically significant increase in the percentage of strains resistant to nalidixic acid (from 4.0% to 13.3%) and chloramphenicol (from 0.5% to 4.4%) in 2016–2018. Resistance to those two antimicrobial drugs was observed in more than one third of the strains. The most common phenotypes were co-trimoxazole/furazolidone and furazolidone/ampicillin. In 2016, the percentage of such phenotypes was 21.4% and 14.8%, in 2017 – 20.0% and 10.6%, and in 2018 – 20.0% and 15.5%, respectively. When analyzing the microorganisms isolated in 2016–2018 and sensitive to three or more antibiotics, we established significant differences indicating the growth of multidrug-resistant microorganisms belonging to V. cholerae non-O1/non-O139 serogroups.