bluuebunny/crossref_metadata_2025 huggingface dataset:
HUBUNGAN ANTARA MINAT MENJADI GURU DAN PENGALAMAN BELAJAR DENGAN PESTASI BELAJAR MAHASISWA PROGRAM STUDI S1 PENDIDIKAN VOKASIONAL TEKNIK ELEKTRO
Authors: Pratiwi Mutiara Rahim  , Suyitno  , Nur Hanifah Yuninda
Published: March 2021

This research aims to determine the relationship between interest in becoming a teacher and learning experiences with learning achievement. The method used in this research is expost facto using quantitative approach. The population in this research is the student of Vocational Education in Electrical Engineering Study Program FT-UNJ, while the sample used is the student of Electrical Engineering Vocational Education Study Program of class of 2014 as many as 47 students. Data analysis technique used is hypothesis test and F-test which previously performed prerequisite analysis test: normality test and linearity test.

The result of data analysis shows that hypothesis test with significant level 5% obtained r-count = 0,933 and r-table = 0,349, which means value r-count> r-table, then the value of F-count = 49,18 and F-table = 3,20 which means F-count> F-table then it can be concluded that there is a significant relationship between the interest to be a teacher and the learning experience with the learning achievement of students Vocational Education in Electrical Engineering Study Program, Universitas Negeri Jakarta.

Abstrak

Penelitian ini bertujuan untuk mengetahui hubungan antara minat menjadi guru dan pengalaman belajar dengan prestasi belajar mahasiswa. Seperti namanya, Program Studi Pendidikan Vokasional Teknik Elektro ini diperuntukkan bagi mahasiswa yang minat menjadi seorang guru. Para calon guru teknik elektro dididik dan dilatih untuk mempersiapkan diri mereka saat kelak menjalankan tuganya menjadi seorang guru. Namun kenyataannya, sampai sekarang masih terdapat mahasiswa yang mengambil Program Studi Pendidikan Vokasional Teknik Elektro yang tidak berminat untuk menjadi seorang guru teknik elektro.

Metode yang digunakan dalam penelitian ini adalah expost facto menggunakan pendekatan kuantitatif. Populasi pada penelitian ini adalah mahasiswa Program Studi Pendidikan Vokasional Teknik Elektro FT-UNJ, sedangkan sampel yang digunakan adalah mahasiswa Program Studi Pendidikan Vokasional Teknik Elektro angkatan 2014 sebanyak 47 orang mahasiswa.. Teknik analisis data yang digunakan adalah uji hipotesis dan uji-F yang sebelumnya dilakukan uji prasyarat analisis menggunakan uji normalitas dan uji linieritas.

Hasil analisis data menunjukkan bahwa uji hipotesis dengan taraf signifikan 5% diperoleh nilai rhitung = 0,933 dan nilai rtabel = 0,349 karena nilai rhitung > rtabel, kemudian nilai Fhitung = 49,18 sebesar dan Ftabel = 3,20 yang berarti Fhitung > Ftabel maka dapat disimpulkan bahwa terdapat hubungan yang signifikan antara minat menjadi guru dan pengalaman belajar dengan prestasi belajar mahasiswa Program Studi Pendidikan Vokasional Teknik Elektro Univeristas Negeri Jakarta
PROTOTYPE SISTEM KENDALI KADAR KEPEKATAN ASAP PADA SMOKING ROOM DENGAN METODE FUZZY LOGIC BERBASIS ARDUINO
Authors: M. Sunan Ishfahani  , Nur Hanifah Yuninda  , Purwanto Gendroyono
Published: March 2021

The purpose of this research is to make prototype of smoke concentration levels control system in smoking room by fuzzy logic method based on arduino. The prototype is able to detect and control the smoke to stay constantly in allowed threshold to the smoking room and provide periodic information about the concentration level in that smoking room automatically. This research uses Research and Development Method, which includes requirements analysis, design, basic implementation into prototype form. Requirements analysis is based on the lack of smoke detection and control systems in smoking rooms. The design of the control system in this study is applied to fuzzy logic controller. This research emphasizes more on the basic implementation of the desired prototype by standards testing such as output voltage testing and fuzzyfication testing that have not arrived at the stage of efficiency testing. The results show that the system will be put into danger condition if the concentration of smoke reaches 80 PPM. At that level, the voltage measured by the sensor is in the range of 3.19 to 3.41 VDC with an average voltage increase of 0.035 to 0.04 VDC per PPM. Error in fuzzyfication testing is 0.04% and 0.08% based on calculation.

Abstrak

Tujuan penelitian ini adalah membuat prototype sistem kendali kadar kepekatan asap pada smoking room dengan metode fuzzy logic berbasis arduino. Alat ini dapat mendeteksi dan mengendalikan asap agar tetap pada ambang batas yang diperbolehkan pada smoking room serta memberikan informasi secara periodik tentang kadar kepekatan asap yang terdapat pada smoking room secara otomatis. Penelitian ini menggunakan Metode Penelitian dan Pengembangan (Research and Development) yang meliputi analisis kebutuhan, perancangan, implementasi dasar dalam bentuk prototype dan pengujian. Analisis kebutuhan didasari karena jarang terdapatnya sistem deteksi dan kendali asap pada smoking room. Perancangan sistem kendali pada penelitian ini diterapkan fuzzy logic controller. Penelitian ini lebih menekankan pada implementasi dasar dari prototype yang diinginkan dengan pengujian standar seperti pengujian tegangan keluaran dan pengujian fuzzyfikasi yang belum sampai pada tahap pengujian efisiensi. Hasil penelitian menunjukkan bahwa sistem akan mengindikasikan sebuah bahaya jika kadar kepekatan asap mencapai 80 PPM. Pada kadar tersebut, tegangan yang terukur oleh sensor berada pada kisaran 3,19 sampai 3,41 VDC dengan rata-rata kenaikan tegangan sebesar 0,035 sampai 0,04 VDC per PPM. Error pada pengujian fuzzyfikasi adalah sebesar 0,04 % dan 0,08 % yang didasarkan pada perhitungan.
PROTOTYPE PENGENDALIAN MOTOR UNTUK MENSTABILKAN pH AIR KOLAM IKAN LELE MENGGUNAKAN SENSOR pH DAN ULTRASONIC BERBASIS ARDUINO UNO
Authors: Wibowo Rian Ari , Mochammad Djaohar  , Nur Hanifah Yuninda
Published: March 2021

Abstract.

The research aimed to design and make motor control device to keep pH of catfish pond water using Arduino Uno pH and ultrasonic sensor. Research using Research and Development (Research and Development) which includes design, system requirement analysis, design, testing and system implementation. Research consists of three main subsystems, namely input, system and output. Sub-system consists of pH sensor, Ultrasonic and Flowmeter to manage the automation process in maintaining water quality in catfish pond contained in Arduino Uno microcontroller. The output subsystems are AC and DC motors for dewatering, filling and checking samples to be displayed on the LCD.

Based on the results of the over all testing that has been done, it is known that the motor control device to maintain the pH of the water catfish pond using pH and ultrasonic sensor based Arduino Uno able to maintain the condition of catfish pond water in the conditions suitable for catfish habitat, that is with pH 6.5 - 8. Keywords: Catfish (Clariasspp), pH Stabilizer, Arduino Uno, pH Sensor, Ultrasonic.

Abstrak

Penelitian bertujuan untuk merancang dan membuat  Alat pengendalian motor untuk menjaga pH air kolam ikan lele menggunakan sensor pH dan ultrasonic berbasis Arduino Uno. Penelitian menggunakan Metode Penelitian dan Pengembangan (Research and Development) yang meliputi perancangan, analisis kebutuhan sistem, perancangan, pengujian dan implementasi sistem. Penelitian terdiri dari 3 subsistem utama, yaitu input, sistem dan output.subsistem input terdiri dari sensor pH, Ultrasonic dan Flowmeter untuk mengatur proses otomatisasi  dalam menjaga kualitas air pada kolam lele yang terdapat didalam mikrokontroler Arduino Uno. Subsistem outputnya adalah motor AC dan DC untuk melakukan pengurasan, pengisian dan pengecekan sampel yang akan di tampilkan pada LCD.

Berdasarkan hasil pengujian secara keseluruhan yang telah dilakukan, diketahui bahwa alat pengendalian motor untuk menjaga pH air kolam ikan lele menggunakan sensor pH dan ultrasonic berbasis Arduino Uno mampu menjaga kondisi air kolam lele dalam kondisi sesuai bagi habitat lele, yaitu dengan pH 6,5 – 8.
Archaeological Study of Islamic History in Minahasa
Authors: Marzuki Irfanuddin Wahid
Published: March 2021

This article shed light on an archaeological study about the spread of Islam in the land of Minahasa of North Sulawesi Province. As the biggest ethnic group living in North Sulawesi Province, most of its people are Christians. Islam arrival in Minahasa carried by Arab traders, habaib from Hadramaut, and political prisoners (Kiai Modjo, Tuanku Imam Bondjol, Kiai Ahmad Rivai, and Tubagus Buang). As a discipline with a focus on ancient cultural heritage, archaeology works based on the material culture taking the form of artifacts, ecofacts, or features. This study enables an investigation on Islamic history in Minahasa based existing physical cultural. The archaeological study on the history of spread of Islam in Minahasa is of novelty since the previous researches of the same topic were mostly conducted through manuscript and archive study. The result of the field observation reveals that the influence of Islamic culture in Minahasa comprises of some Islamic settlements, mosques, and Islamic cemetery. The influence of Islamic culture in Minahasa has a different character between coastal and inland areas.
Pluralism and Religious Conflict in the Frame of Regional Autonomy in West Sumatra
Authors: Burhanuddin Nunu , Pasilaputra Dodi , Wirman Hardi Putra
Published: March 2021

The diversity of ethnicities, races, and religions is a reality in the life of the nation and state, although it is undeniable that there is a potential for conflict. This study aimed to explain the pattern of religious harmony in West Sumatra within the framework of regional autonomy which is adopted from the cultural system and local wisdom. This study used a phenomenological approach to provide accurate conditions of multi-ethnic, cultural, and religious communities. The results showed that the pattern of religious harmony through the resolution of religious conflicts in several regions in West Sumatra was carried out through the alignment of regional autonomy with local customs and culture. Forms of alignment include alignment of school uniforms, equal distribution of sacrificial meat, the presence of baralek, the tradition of manyiriah, interfaith graves between Muslims and Christians, and the application of customary philosophies. This study contributes to the theory of a cultural approach based on local wisdom in resolving religious conflicts and strengthening social integration of the community.
Первое обнаружение моллюска-камнеточца Petricola lithophaga (Retzius, 1788) в створках культивируемых в Крыму устриц Crassostrea gigas (Thunberg, 1793) (залив Донузлав, Чёрное море)
Authors: Ковалёва М. А. , Вялова О. Ю.
Published: March 2021

За последние годы значительно увеличилось количество ферм по выращиванию моллюсков у берегов Крыма и Кавказа. Культивирование тихоокеанской устрицы Crassostrea gigas (Thunberg, 1793) требует проведения мониторинга здоровья моллюсков и паразитологического контроля морских ферм. Целью данной работы было изучить видовой состав эпибионтов и эндобионтов, ассоциированных с раковинами культивируемых устриц C. gigas, а также выявить виды, повреждающие раковины. Товарные устрицы с визуальными повреждениями раковины собраны на морской ферме в заливе Донузлав (Крым, Чёрное море) и доставлены для дальнейшего изучения в лабораторию в живом виде охлаждёнными. В результате обследования 22 устриц обнаружены 14 видов макрозообентоса и экземпляры живых моллюсков-камнеточцев Petricola lithophaga (Retzius, 1788). Размеры моллюсков-камнеточцев варьировали от 9 до 16 мм, возраст составлял около двух лет. Длительное нахождение P. lithophaga внутри створок устриц может вызывать деградацию известкового слоя раковины и даже гибель моллюска-хозяина; данный факт имеет большое значение для марикультуры Чёрного моря. Принимая в расчёт годовой цикл развития камнеточца-петриколы, в период массового оседания его личинок (с июля по октябрь) можно рекомендовать проводить осмотр раковин культивируемых устриц. Выполнение дальнейших детальных исследований позволит разработать мероприятия по профилактике и защите двустворчатых моллюсков от заражения камнеточцем P. lithophaga.
Messinian ostracodes from the western Betic Strait (SW Spain)
Authors: Verónica Romero , Ruiz Francisco , González-Regalado María Luz , Tosquella Josep , Abad Manuel , Izquierdo Tatiana , Toscano Antonio , Gómez Paula
Published: March 2021

During the Neogene, the Betic Strait was one of the gateways that connected the Atlantic Ocean and the Mediterranean Sea. In this paper, we have analyzed the ostracod faunas of samples collected from sediments crossed by a long borehole in southwestern Spain. These sediments were deposited in the Betic strait just before the Messinian Salinity Crisis. During the middle Messinian (6.8-6.0 Ma), the scarce and low diversified ostracod assemblages (Krithe, Parakrithe, Henryhowella) are typical of upper bathyal palaeoenvironments (200-400 m water depth). This period includes a short transition (6.26-6.25 Ma) to outer neritic palaeoenvironments, coinciding with a glaciation and characterized by the presence of Acanthocythereis hystrix (Reuss, 1850) and the disappearance of Krithe and Parakrithe. The most abundant species have a wide biostratigraphic distribution, most of them ranging from the Tortonian until the Holocene.
„Otvírání studánek“. Legitimizační rámce slavnosti revitalizované v 70. letech 20. století v okrese Žďár nad Sázavou
Authors: Doušek Roman
Published: March 2021

In the late 1970s, Czech society was becoming increasingly aware of the worsening environmental situation. Officials in the Žďár nad Sázavou district agreed to begin revitalizing the “Opening of the Wells” ritual to educate people about environmental problems and as a partial solution to them. This paper examines how this revitalization occurred, focusing on the conceptual framework meant to legitimize this project (the topoi selected, collective memory, ideological proclamations) and ensure its continuation. Studying attempts to make local authorities hold “Opening of the Wells” ceremonies in the villages of this district also allows us to examine how certain mechanisms of power worked during the Communist era. It also helps us better understand how environmental issues were dealt with at the district level.
PELATIHAN PUBLIC SPEAKING MENGGUNAKAN METODE KOOPERATIF TIPE JIGSAW DENGAN MEDIA AUDIO VISUAL PADA PEMUDA KARANG TARUNA
Authors: Darmuki Agus , Hidayati Nur Alfin , Udin Syahrul
Published: March 2021

Salah satu aset yang akan menjadi generasi emas suatu negara yaitu pemuda. Mereka merupakan usia produktif yang memiliki potensi penggerak pembangunan suatu negara. Maju mundurnya suatu negara nanti akan bergantung pada kualitas pemuda dalam partisipasinya di pembangunan. Kemampuan mereka akan ikut andil membangun peradaban yang unggul suatu bangsa. Pemuda harus betul-betul dipersiapkan dengan berbagai kemampuan yang mendukung kehidupannya di masyarakat, salah satunya kemampuan Public Speaking. Kemampuan Public Speaking akan menjadi dasar dalam membangun peradaban bangsa yang yang demokrasi. Kemampuan Public Speaking mereka akan menunjukkan intelektualnya dalam menyampaikan pesan, ide, pemikiran dan informasi kepada orang lain. Tujuan kegiatan ini dengan mengadakan pelatihan public speaking bagi pemuda, untuk memberikan bekal kepada mereka kemampuan public speaking sehingga dapat berpartisipasi dalam pembangunan bangsa terutama di Desanya. Target kegiatan ini dapat menghasilkan artikel yang dipublicasikan pada jurnal. Metode yang kami pakai dalam pelatihan ini yaitu metode Kooperatif Tipe Jigsaw dengan berbasis audio visual. Melalui metode Kooperatif Tipe Jigsaw diharapkan kaum muda dapat berlatih keberanian kemudian direkam dalam bentuk audiovisual dan diunggah di youtube. Kegiatan pelatihan ini dilakukan pada tanggal 4-5 November 2019. Sasaran pelatihan ini adalah pemuda karang taruna Desa Wotsogo Kecamatan Jatirogo.
SOSIALISASI UNDANG-UNDANG NARKOTIKA DALAM RANGKA MENYELAMATKAN GENERASI MUDA DARI BAHAYA PENYALAHGUNAAN NARKOTIKA
Authors: Supanto Supanto , Parwitasari Tika Andarasni , Ismunarno Ismunarno , Slamet Sabar , Rofikah Rofikah
Published: March 2021

Kegiatan pengabdian masyarakat ini adalah mensosialisasikan Undang-Undang Nomor 35 Tahun 2009 tentang Narkotika kepada para siswa Sekolah Menengah Pertama (SMP). Kegiatan ini bertujuan agar para siswa sebagai generasi muda mengetahui dan memahami bahaya narkotika, sehingga tidak akan melakukan perbuatan yang mengarah pada tindakan terjadinya penyalahgunaan narkotika.Kegiatan pengabdian ini dilandasi pemikiran semakin maraknya penyalahgunaan narkotika di kalangan para generasi muda termasuk para siswa sekolah, baik sebagai pengguna maupun sebagai pengedar. Berdasarkan data survey Badan Narkotika Nasional tahun 2019 ada 2,3 juta pelajar di Indonesia pernah mengkonsumsi narkoba (narkotika, psikotropika, obat-obatan terlarang). Melihat data tersebut dapat dikatakan “Indonesia Darurat Narkotika”. Oleh karena itu, untuk mencegah semakin banyaknya pengguna narkoba di kalangan pelajar, maka perlu dilakukan sosialisasi bahaya penyalahgunaan narkotika. Metode kegiatan pengabdian ini berbentuk penyuluhan hukum Undang-Undang Nomor 35 Tahun 2009 tentang Narkotika, yang dilanjutkan dengan dialog interaktif seputar narkoba antara para siswa dengan tim penyuluh hukum yakni para Dosen Bagian Pidana Fakultas Hukum Universitas Sebelas Maret. Narkoba dari segi agama sudahpasti adalah sesuatu yang haram, dan dari segi masa depan sebuah bangsa, narkoba adalah senjata paling ampuh untuk menghancurkan sebuah negara. Diharapkan dengan adanya kegiatan penyuluhan hukum ini, semakin banyak pelajar yang memiliki wawasan tentang bahaya narkoba.
Flow Field Numerical Simulation and Performance Analysis of Progressing Cavity Pump
Authors: Liu Wu , Shu Mingcai , Sun Yongyao , Fan Yuanbo
Published: March 2021

Progressing cavity pump (PCP) is the essential booster equipment in oil–gas mixing delivery. Changes in relevant parameters in PCP operations directly affect the working performance and service life of the pump. On the basis of computational fluid dynamics (CFD) in this study, we apply dynamic grid technology to establish a 3D flow field numerical calculation model for the CQ11-2.4J PCP, which is used in the field of the Hounan Operation Area in Changqing oil field, China. The effects of several operating parameters, such as oil viscosity, pump rotation speed, differential pump pressure, and void fraction of oil, on the pressure and the velocity distribution of the PCP flow field are examined. Various performance parameters in the transport of the oil–gas two-phase mixture are used in the analysis, including volumetric flow rate, slippage, shaft power, volumetric efficiency, and system efficiency. The results show that the pressure and speed distribution in the pump chamber of the PCP is relatively homogenous under different working conditions, whereas the pressure and speed exhibited sharp changes at the stator and rotor sealing line and adjacent areas in the pump chamber. Increasing the viscosity of the oil and the speed of the rotor can effectively improve the flow characteristics of the PCP, but extremely high pump rotation speed would cause a decline in system efficiency. Increasing the differential pressure and the void fraction of oil would result in a decrease in the volumetric flow rate and efficiency of the PCP. Considering the variation law of the PCP's performance parameters, the optimal interval for each operating parameter of the PCP is as follows: Oil viscosity at 50–100 mPa·s, pump rotation speed at 200–300 rev/min, differential pressure at 0.2–0.3 MPa, and the void fraction of oil not more than 50%. This research can provide technical support for the optimization of the working conditions of the PCP on site.
Flow-Based Characterization of Digital Rock Images Using Deep Learning
Authors: Alqahtani Naif J. , Chung Traiwit , Wang Ying Da , Armstrong Ryan T. , Swietojanski Pawel , Mostaghimi Peyman
Published: March 2021

X-ray imaging of porous media has revolutionized the interpretation of various microscale phenomena in subsurface systems. The volumetric images acquired from this technology, known as digital rocks (DR), make it a suitable candidate for machine learning and computer-vision applications. The current routine DR frameworks involving image processing and modeling are susceptible to user bias and expensive computation requirements, especially for large domains. In comparison, the inference with trained machine-learning models can be significantly cheaper and computationally faster. Here we apply two popular convolutional neural network (ConvNet) architectures [residual network (ResNet) and ResNext] to learn the geometry of the pore space in 3D porous media images in a supervised learning scheme for flow-based characterization. The virtual permeability of the images to train the models is computed through a numerical simulation solver. Multiple ResNet variants are then trained to predict the continuous permeability value (regression). Our findings demonstrate the suitability of such networks to characterize volume images without having to resort to further ad-hoc and complex model adjustments. We show that training with richer representation of pore space improves the overall performance. We also compare the performance of the models statistically based on multiple metrics to assess the accuracy of the regression. The model inference of permeability from an unseen sandstone sample is executed on a standard workstation in less than 120 ms/sample and shows a score of 0.87 using explained variance score (EVS) metric, a mean absolute error (MAE) of 0.040 darcies, and 18.9% relative error in predicting the value of permeability compared to values acquired through simulation. Similar metrics are obtained when training with carbonate rock images. The training wall time and hyperparameters setting of the model are discussed. The findings of this study demonstrate the significant potential of machine learning for accurate DR analysis and rock typing while leveraging automation and scalability.
Compact slot based triangular multiband microstrip patch antenna for C and X band applications
Authors: C BALAMURUGAN , P Marichamy
Published: March 2021

Modern portable communication devices require a compact antenna with superior performance and lower weight and size. The design and development of such a compact size antenna is a major challenge for the researchers. In this proposed work compact slot based triangular patch antenna to work at the multiple resonance frequencies from 5 GHz to 10 GHz using FR4 substrate is presented. Proposed antenna is simulated using High Frequency Structural Simulator (HFSS 2020R1). Simulated and fabricated antenna test results shows that proposed antenna can be suitably employed for the portable wireless transceivers in C and X band. Proposed slot based triangular patch antenna achieves the peak gain of 8 dBi and has the good impedance matching properties such that return loss S11is less than -10 dB and VSWR value is very closer to 1 at all the resonance frequencies.
On the Observations and Environmental Modeling in Xingó Hydropower Plant – São Francisco Basin, Brazil: Present and Future Hydroclimatic Features
Authors: Luiz-Silva Wanderson , Maceira Maria Elvira Piñeiro , Rotunno-Filho Otto Corrêa , Chou Sin Chan
Published: March 2021

The São Francisco river basin plays a critical role in the hydroelectrical operational planning of Brazil. Understanding the hydroclimatic dynamic regime and, consequently, related climate changes is essential for decision-makers of the hydroelectrical sector. In this context, this work takes the Xingó hydropower plant and its drainage area as a reference for climatic and hydrological analyzes. Observed rainfall in the drainage basin and streamflow measurements in the power plant between 1975 and 2016 are used to assess the climatology of the region and to identify trends in the time series. In addition, a methodological framework based on numerical modeling of the hydroclimatic variables is employed to examine the representation of the present climate (1961 to 1990) and to investigate the future projections (2011 to 2100). The SMAP rainfall-runoff model and the Eta regional climate model nested within two global models are adopted in this investigation under the RCP4.5 and RCP8.5 IPCC scenarios. In Xingó, the average annual precipitation is about 978 mm and the average annual streamflow is 2,534 m³.s− 1. This region is marked by the monsoon cycle, with a clear rainy (October to March) and dry (April to September) period. There is no trend regarding precipitation, while the streamflow time series show a statistically significant decreasing trend in the present climate. Climate projections point to reduction in rainfall and streamflow during the 21st century. The results showed in this work revealed to be crucial to better understand the energy security for Xingó in the present and future climates.
An Improved Multi-Objective Workflow Scheduling Using NSPSO With Fuzzy Rules
Authors: PRATHIBHA SOMA , Latha B. , Vijaykumar V.
Published: March 2021

Lot of scientific problems in various domains from modelling sky as mosaics to understand Genome sequencing in biological applications are modelled as workflows with large number of interconnected tasks. Particle Swarm Optimization (PSO) based metaheuristics are currently used to address many optimization problems as they are simple to implement and able to produce quickly optimal or sub-optimal solutions based on learning capabilities. Even though many works are cited in the literature on workflow scheduling, most of the existing works are focused on reducing the makespan alone. Moreover, energy efficiency is considered only in few works included in the literature. Constraints about the dynamic workload allocation are not introduced in the existing systems. Moreover, the optimization techniques used in the existing systems have improved the QoS with little scalability in the cloud environment since they consider only the infrastructure as the service model.In this work a new algorithm has been proposed based on the proposal of a new Multi-Objective Optimization model called F-NSPSO using NSPSO Meta-Heuristic s. This method allows the user to choose a suitable configuration dynamically. An average of above 15% in the energy reduction for the proposed system over simple DVFS was achieved for all types of workflow applications with different dimensions. Similarly when compared to NSPSO an energy reduction of at least 10% has been observed for F-NSPSO for all three types of workflow applications. Compared to NSPSO algorithm F-NSPSO algorithm shows at least 13%, 12% and 21% improvement in average makespan for Montage, Cybershake and Epigenomics workflow applications respectively.
Study of Decoupling between Closely Spaced Microstrip MIMO antennas using Microstrip Resonator
Authors: Bhattacharjee Swati , Ghosh Chandan Kumar
Published: March 2021

This paper presents a novel decoupling technique between two closely spaced MIMO antennas whose edge to edge spacing is0.03λ (1.975mm).A microstrip resonator is used in between the antennas that act as a decoupled device. The MIMO plays an important role in the current communication system due to its enhanced data transferring rate. However, the closely spaced MIMO antennas have a major disadvantage of high mutual coupling (MC). MC affects the entire characteristics of MIMO antennas and as a result, the performance of the antenna degrades. To overcome this problem, we have introduced a microstrip resonator that acts as an electrical wall between the MIMO antennas. The antenna has been simulated by using an IE3D EM simulator and a suppression of 48dB MC is achieved at a resonant frequency of 4.85 GHz. The MIMO antennas have been fabricated and the results are compared with the simulated ones. This antenna can be used in wireless communication, WLAN and satellite communication.
Quantitative CT texture-based method to predict diagnosis and prognosis of fibrosing interstitial lung disease patterns
Authors: Haghighi Babak , Gefter Warren B. , Pantalone Lauren , Kontos Despina , Barbosa Eduardo J. Mortani
Published: March 2021

Objectives

To utilize high-resolution quantitative CT (QCT) imaging features for prediction of diagnosis and prognosis in fibrosing interstitial lung diseases (ILD).
Methods

40 ILD patients (20 usual interstitial pneumonia (UIP), 20 non-UIP pattern ILD) were classified by expert consensus of 2 radiologists and followed for 7 years. Clinical variables were recorded. Following segmentation of the lung field, a total of 26 texture features were extracted using a lattice-based approach (TM model). The TM model was compared with previously histogram-based model (HM) for their abilities to classify UIP vs non-UIP. For prognostic assessment, survival analysis was performed comparing the expert diagnostic labels versus TM metrics.
Results

In the classification analysis, the TM model outperformed the HM method with AUC of 0.70. While survival curves of UIP vs non-UIP expert labels in Cox regression analysis were not statistically different, TM QCT features allowed statistically significant partition of the cohort.
Conclusion

TM model outperformed HM model in distinguishing UIP from non-UIP patterns. Most importantly, TM allows for partitioning of the cohort into distinct survival groups, whereas expert UIP vs non-UIP labeling does not. QCT TM models may improve diagnosis of ILD and offer more accurate prognostication, better guiding patient management.
An Efficient Dynamic Load Balancing Mechanism for Cloud Computing Environment
Authors: P. Rajagopal T. K. , M. Venkatesan
Published: March 2021

Cloud computing environment provides the information technology service and resources using in the Internet. It offers a variety of services such as IAAS (infrastructure as a service), SAAS (software as a service) and PAAS (platform as a service). The scenario of cloud computing environment mainly refers to both the cloud environment service provider and the cloud environment service user. Cloud environment service provider provides cloud environment resources and services to the cloud environment service provider. The cloud environment service provider should use its resources efficiently to make a profit, but the cloud environment challenging task for them is to maximize cloud environment resources. This article describes the energy saving approach by optimizing the use of hosts and minimizing the active host using migration techniques.
Life Sentence: Mollusc Prisoner in Cretaceous Brachiopod Reconstructed in 3D. First Evidence for the Co-Existence of A Mollusc Inside a Living Animal
Authors: Bujtor László , Andrey Philippe
Published: March 2021

A tiny shell (7 mm length) of a juvenile Mollusc (supposed gastropod) was discovered enclosed within the packstone filled shell of a terebratellidine brachiopod (Zittelina hofmanni Bujtor and Vörös, 2020) from the Lower Cretaceous Apátvarasd Limestone Formation of Zengővárkony (Mecsek Mountains, South Hungary). Serial sectioning of the brachiopod shell revealed that in addition to the brachidium, a different and unusual shelly structure was preserved inside the brachiopod shell. 2D serial sections were digitalized and fed into Free-D imaging software to generate a 3D reconstruction of the entombed fossil, which is supposed a juvenile gastropod. Consideration of the emplacement, dimensions, and orientation of the shell suggests that it entered the cavity of the living brachiopod shell as an egg or larva and was trapped. Further analysis of both fossils suggests that the two animals lived and developed beside each other for a longer period: the brachiopod crus is less developed and slightly deformed on the gastropod side with the gastropod placed parallel to the crura and the lateral wall of the brachiopod. This example suggests that shells of brachiopods may have provided sheltered microhabitats for benthic micro- and macrofossils not only after the death but even during the life of the host brachiopod. This is the first evidence from the fossil record for the co-existence of a living Mollusc inside the shell of a living brachiopod. This work illustrates how general purpose 3D modelling software initially developed in other disciplines may provide new insights in the wide field of geosciences.
Hydrogeochemical evolution and groundwater quality assessment using chemical systematics, statistical techniques, and pollution index of groundwater (PIG): a case study
Authors: Kamaunji Vandi Dlama , Ishaku Jackson Makpane , Kamaunji Dlama Zira , Kwami Ibrahim Abdulkarim
Published: March 2021

Herein, we investigate the hydrogeochemical processes influencing the chemistry and suitability of groundwater for drinking in Mubi south area, north-eastern Nigeria based on physicochemical results of water samples collected from 30 boreholes in the area. The cations and anions distribution in the samples are in the order Mg2+ > K+ > Na+ and HCO3− > NO3− > Cl− > SO42− > CO32− respectively. The low turbidity (0.02–4.86 NTU) and neutral–mildly alkaline nature (pH = 6.65–8.70) of the groundwater indicate high clarity, low level of cloudiness, high CO2 abundance and dissolve ions in form of HCO3−. Hydrogeochemical (e.g., Piper, Durov, bi-variant and scatter plots) and statistical (PCA and HCA) evidences highlight the biogeochemical hydrolysis (i.e. silicate weathering) of silicate minerals (such as K-feldspars, pyroxenes, amphiboles) as the major process controlling the groundwater chemistry. The dominance of Ca2+–Mg2+–HCO3− water type, coupled with the strong positive correlation between EC and K+ (r = 0.75), and the strong positive loading of Ca+ (0.74) are robust evidences for the silicate weathering process. However, the elevated Cl− concentrations (15–206 mg/l), and the insignificant variation of Na+/Cl− ratio with increasing EC as well as the high positive loadings of EC and TDS imply other secondary processes (e.g., evaporate salts and anthropogenic pollution) were also involved in the hydrogeochemical evolution. The pollution index of groundwater (PIG = 0.27–0.737) fall below the insignificant pollution state of less than 1, diagnostic of good water quality for drinking purpose and sustainability of public health.
Staff Experiences at a New York City Medical Center During the Spring Peak of the Covid-19 Pandemic: A Qualitative Study
Authors: Blackler Liz , Scharf Amy E. , Masciale James N. , Lynch Kathleen A. , Riches Jamie C. , Matsoukas Konstantina , Colletti Michelle , Wall Lisa , Chawla Sanjay , Coyle Nessa , Alici Yesne , Guest Rebecca , Voigt Louis P.
Published: March 2021

Purpose: In March-April 2020, New York City was overwhelmed by COVID-19 infections, leading to substantial disruptions in nearly all aspects of care and operations at most local hospitals. This qualitative study of a quaternary, urban oncology hospital investigated the effects of these disruptions upon a professionally diverse cohort of its employees, including physicians, nurses, respiratory therapists, pharmacists, security guards, histology technicians, and environmental services workers. Methods: The participant pool were selected through a combination of purposive and random sampling methodology and coders performed a thematic content analysis of open-ended responses. Results: Analysis revealed several important themes, including concerns about exposure for self and others; patient care as a source of both satisfaction and stress; psychological consequences of uncertainty and ambiguity; family as sources of both comfort and apprehension; the importance of adequate institutional communication; and support from colleagues. Conclusion: Results and analysis provide suggestions for institutional policies and initiatives in the event of a COVID-19 surge or another public health crisis. Administrative efforts should aspire to establish, strengthen, and promote interdisciplinary and interdepartmental efforts to address, and mitigate workplace and personal stressors. through timely and transparent communications, consistent clinical guidance and information about changes in hospital policies and supplemental employee assistance.
Is spiritual well-being related to survival time of inpatients with advanced cancer? An East Asian cohort study
Authors: Hiratsuka Yusuke , Suh Sang-Yeon , Won Seon Hye , Choi Sung Eun , Kim Sun Hyun , Cheng Shao Yi , Chen Ping Jen , Yoon Seok Joon , Koh Su Jin , Park Shin Ae , Seo Ji Yeon , Hui David , Yamaguchi Takashi , Morita Tatusya , Tsuneto Satoru , Mori Masanori , Inoue Akira
Published: March 2021

Purpose: It has been suggested that psychosocial factors are related to survival time in patients with cancer. However, there is no cross-cultural study examining the relationship between spiritual well-being (SWB) and survival time among countries. This study investigated the relationship between SWB and survival time among three East Asian countries. Methods: This international multicenter cohort study is a secondary analysis involving newly admitted inpatients with advanced cancer in palliative care units in Japan, South Korea and Taiwan. SWB was measured at admission. We performed multivariate analysis using the Cox proportional hazards model to identify independent prognostic factors. Results: A total of 2638 patients treated at 37 palliative care units from January 2017 to September 2018 were analyzed. The median survival time was 18.0 days (95% confidence interval [CI] 16.5 to 19.5) in Japan, 23.0 days (95% CI 19.9 to 26.1) in Korea and 15.0 days (95% CI 13.0 to 17.0) in Taiwan. Four variables were significant in Japan, Korea and Taiwan. SWB was a significant factor correlated with survival in Taiwan (hazard ratio [HR] 1.27; 95% CI 1.01 to 1.59; p = 0.04), while it was insignificant in Japan (HR 1.10; 95% CI 1.00 to 1.22; p = 0.06), and Korea (HR 1.02; 95% CI 0.77 to 1.35; p = 0.89). Conclusion: SWB of patients with advanced cancer was related to survival time in Taiwan but not in Japan or Korea. The findings suggest that spiritual care may contribute to prolonged survival in patients with far advanced cancer.
Electro-acupuncture for Irritable Bowel Syndrome Patients: Study Protocol for A Single-blinded Randomized Sham-controlled Clinical Trial
Authors: Zhong Linda LD , Lam Tsz Fung , Yang Wei , Zheng Ya , Lyu Zipan , Bian Zhaoxiang
Published: March 2021

Background: Irritable bowel syndrome (IBS) is one of the most commonly functional gastrointestinal disorders in clinical practice. The diagnosis of IBS is based on symptoms defined by abdominal pain or discomfort associated with defecation or changes in bowel habit, and no absence of organic diseases. Acupuncture has been used for the treatment of internal medicine including digestive disorders and depressive disorder in Chinese medicine. This study aims to determine whether electro-acupuncture could have significant benefits than sham acupuncture for IBS.Methods/Design: This is a single blinded randomized sham controlled clinical trial with two arms. 120 IBS patients will be recruited. After a 2-week run-in period, eligible subjects will be randomly assigned to one of two arms, acupuncture (AC) arm and sham acupuncture (SAC) arm. Each eligible subject will go through a 2-wk run-in-period, 6-wk treatment period and follow by a 6-wk of follow-up period. Five visits in total were scheduled for each subject in week 0, week 2, week 5, week 8 and week 14. The outcomes would be measured with 1) IBS-SSS; 2) Hamilton Depression Rating Scale (HAMD-17); 3) Clinical Global Impression-severity (CGI-S); 4) Self-Rating Depression Scale (SDS); 5) IBS Quality of Life (IBS-QoL).Discussion：The study will compare electro-acupuncture with sham acupuncture to explore the feasibility for electro-acupuncture in improving IBS symptoms. Trial registration: ClinicalTrials.gov Identifier: NCT04387383
Economic costs of biological invasions in protected areas worldwide - where do we stand?
Authors: Moodley Desika , Angulo Elena , Cuthbert Ross N. , Leung Brian , Turbelin Anna , Novoa Ana , Kourantidou Melina , Heringer Gustavo , Haubrock Phillip J. , Renault David , Robuchon Marine , Fantle-Lepczyk Jean , Courchamp Franck , Diagne Christophe
Published: March 2021

Biological invasions are one of the main threats to biodiversity within protected areas (PAs) worldwide. Meanwhile, the resilience of PAs along with their capacity to mitigate impacts from invasions remains largely unknown. Filling this knowledge gap is therefore critical for informing policy responses and optimally allocating resources invested in prevention and control strategies. Here we use the InvaCost database to address this gap from three perspectives: (i) characterizing the total cost of invasive alien species (IAS) in PAs; (ii) examining differences in mean observed costs of IAS between PAs and non-PAs; and (iii) evaluating factors affecting mean observed costs of IAS in PAs. Our results show that reported economic costs of IAS in PAs amounted to US$ 22.13 billion between 1976 and 2020, of which US$ 802.47 million were observed costs (incurred) and US$ 21.18 billion were potential costs (expected). The highest observed total costs were reported for Africa and South America; mainly caused by mammals, plants and insects; and predominantly impacted the finances of government agencies. Most of the observed total costs were reported for management (69%) versus damage (27%), however, the vast majority of management costs were reported for post-invasion actions (US$ 453 million; focused on control and eradication). PAs incurred on average higher costs than non-PAs, however, this was dependent on the environment and the continent. When analyzing costs of IAS within PAs, observed mean costs significantly differed with the environment (higher in terrestrial environments), continent (higher in Pacific islands), taxon (higher for vertebrates and invertebrates than in plants) and the human development index (developed countries incur higher costs). Managers of selected PAs surveyed acknowledged IAS as the most threatening factor, concurred on the necessity of reporting costs in PAs, and pointed to insufficient budget allocation for pre-invasion actions. Our findings highlight the need for a deeper understanding of the economic costs caused by invasions across PAs, direct driving factors and management challenges.
Morbidity and Mortality Reduction Associated with Polysomnography Testing in Idiopathic Pulmonary Fibrosis: A Population-Based Cohort Study
Authors: Vozoris Nicholas T , Wilton Andrew S , Austin Peter C , Kendzerska Tetyana , Ryan Clodagh M , Gershon Andrea S
Published: March 2021

Background: It is not well-known if diagnosing and treating sleep breathing disorders among individuals with idiopathic pulmonary fibrosis (IPF) improves health outcomes. We evaluated the association between receipt of laboratory-based polysomnography (which is the first step in the diagnosis and treatment of sleep breathing disorders in Ontario, Canada) and respiratory-related hospitalization and all-cause mortality among individuals with IPF.Methods: We used a retrospective, population-based, cohort study design, analyzing health administrative data from Ontario, Canada, from 2007-2019. Individuals with IPF were identified using an algorithm based on health administrative codes previously developed by IPF experts. Propensity score matching was used to account for potential differences in 41 relevant covariates between individuals that underwent polysomnography (exposed) and individuals that did not undergo polysomnography (controls), in order minimize potential confounding. Respiratory-related hospitalization and all-cause mortality were evaluated up to 12 months after the index date. Results: Out of 5044 individuals with IPF identified, 201 (4.0%) received polysomnography, and 189 (94.0%) were matched to an equal number of controls. Compared to controls, exposed individuals had significantly reduced rates of respiratory-related hospitalization (hazard ratio [HR] 0.43, 95% confidence interval [CI] 0.24-0.75), p=0.003) and all-cause mortality (HR 0.49, 95% CI 0.30-0.80), p=0.004). Significantly reduced rate of respiratory-related hospitalization (but not all-cause mortality) was also observed among those with >=1 respiratory-related hospitalization (HR 0.38, 95% CI 0.15-0.99) and systemic corticosteroid receipt (HR 0.37, 95% CI 0.19-0.94) in the year prior to the index date, which reflect sicker subgroups of persons. Conclusions: Undergoing polysomnography was associated with significantly improved clinically-important health outcomes among individuals with IPF, highlighting the potential importance of incorporating this testing in IPF disease management.
Genome-wide identification, genomic organization, and expression profiling of the CONSTANS-like (COL) gene family in petunia under multiple stresses
Authors: Khatun Khadiza , Debnath Sourav , Robin Arif Hasan Khan , Wai Antt Htet , Nath Ujjal Kumar , Lee Do-Jin , Kim Chang-Kil , Mi‑Young Chung
Published: March 2021

BackgroundCONSTANS-like (CO-like, COL) is a putative zinc-finger transcription factor family that plays a key role in the control of flowering time in photoperiod-sensitive plants. Besides, the COL family protein is also involved in plant development, responses to stresses. However, information on plant development and stress response related function has not been previously performed in any solanaceous crop. In this study, a genome-wide analysis of COL gene family was conducted in Petunia hybrida cv. Mirage Rose to elucidate their roles in organ development and stress response.ResultsA total of 15 COL genes were identified in petunia. Based on their amino acid sequence identity and domain composition they were phylogenetically classified into three groups those are conserved among the flowering plants. Similar gene structure and motif distribution were observed in the same group. Subcellular localization assays demonstrated that all PaCOL proteins were localized in nucleus. Furthermore, differential expression patterns of PaCOL genes were observed in various tissues. The expression patterns of PaCOL genes were observed under various abiotic and phytohormone treatment to explore their relatedness in different stresses. Moreover, several stress and light-responsive cis-elements were detected for different PaCOL genes.ConclusionThe COL genes of petunia genome, those were clustered into three distinct groups, are conserved among flowering plants, were expressed in different tissues and induced under multiple abiotic stress treatments indicating their involvement in plant growth and development and stress response mechanism. This work laid the significant foundation for functional characterization of PaCOL gene family to uncover their biological roles in plant growth, development and in stress response.
A Maxwell-demon-like Mechanism Verified by Molecular Dynamics Simulations
Authors: Jiang Jiantang
Published: March 2021

Here we report a series of molecular dynamics simulations to confirm the feasibility of a molecule-rectifying mechanism which can continuously induce a net particle flow but has to work with an external electric field. Here we also propose an optimized model that can work without the external electric field. The results of a series of simulations show that our new model can also continuously induce net flows without any external forces. The new model can generate a considerable vapor pressure difference of up to 7.073kPa at a temperature of 370K. The new model will be easier to be verified by physical experiments and can be used to develop useful nanodevices. It is generally believed that it is impossible to exploit the kinetic energy of molecules in thermal motion at equilibrium state, but our simulation results may change this view.