bluuebunny/crossref_metadata_2025 huggingface dataset:
DDR-coin: An Efficient Probabilistic Distributed Trigger Counting Algorithm
Authors: Kim Seokhyun , Park Yongsu
Published: November 2020

A distributed trigger counting (DTC) problem is to detect w triggers in the distributed system consisting of n nodes. DTC algorithms can be used for monitoring systems using sensors to detect a significant global change. When designing an efficient DTC algorithm, the following goals should be considered; minimizing the whole number of exchanged messages used for counting triggers and even distribution of communication loads among nodes. In this paper, we present an efficient DTC algorithm, DDR-coin (Deterministic Detection of Randomly generated coins). The message complexity—the total number of exchanged messages—of DDR-coin is O(nlogn(w/n)) in average. MaxRcvLoad—the maximum number of received messages to detect w triggers in each node—is O(logn(w/n)) on average. DDR-coin is not an exact algorithm; even though w triggers are received by the n nodes, it can fail to raise an alarm with a negligible probability. However, DDR-coin is more efficient than exact DTC algorithms on average and the gap between those is increased for larger n. We implemented the prototype of the proposed scheme using NetLogo 6.1.1. We confirmed that experimental results are close to our mathematical analysis. Compared with the previous schemes—TreeFill, CoinRand, and RingRand— DDR-coin shows smaller message complexity and MaxRcvLoad.
A Broadband Differential-Fed Dual-Polarized Hollow Cylindrical Dielectric Resonator Antenna for 5G Communications
Authors: Fang Xiaosheng , Shi Kangping , Sun Yuxiang
Published: November 2020

A broadband differential-fed dual-polarized hollow cylindrical dielectric resonator antenna (DRA) is proposed in this article. It makes use of the HEM111, HEM113, and HEM115 modes of the cylindrical hollow DRA. The proposed DRA is simply fed by two pairs of conducting strips and each pair of strips is provided with the out-of-phase signals. After introducing four disconnected air holes into the DRA, a broadband characteristic is achieved, with little effect on the antenna gain of its higher-order modes. To verify this idea, frosted K9-glass is applied to fabricate the hollow cylindrical DRA. The differential S-parameters, radiation patterns, and antenna gain of the DRA are studied. It is found that the proposed differential-fed dual-polarized DRA is able to provide a broad differential impedance bandwidth of ~68% and a high differential-port isolation better than ~46 dB. Moreover, symmetrical broadside radiation patterns are observed across the whole operating band. The proposed DRA covers the frequency bands including the 5G-n77 (3.4–4.2 GHz), 5G-n79 (4.4–5.0 GHz), WLAN-5.2 GHz (5.15–5.35 GHz), and WLAN-5.8 GHz (5.725–5.825 GHz), which can be used for 5G communications.
A Low-Cost Calibration Method for Low-Cost MEMS Accelerometers Based on 3D Printing
Authors: García Jesús A. , Lara Evangelina , Aguilar Leocundo
Published: November 2020

A ubiquitous sensor in embedded systems is the accelerometer, as it enables a range of applications. However, accelerometers experience nonlinearities in their outputs caused by error terms and axes misalignment. These errors are a major concern because, in applications such as navigations systems, they accumulate over time, degrading the position accuracy. Through a calibration procedure, the errors can be modeled and compensated. Many methods have been proposed; however, they require sophisticated equipment available only in laboratories, which makes them complex and expensive. In this article, a simple, practical, and low-cost calibration method is proposed. It uses a 3D printed polyhedron, benefiting from the popularisation and low-cost of 3D printing in the present day. Additionally, each polyhedron could hold as much as 14 sensors, which can be calibrated simultaneously. The method was performed with a low-cost sensor and it significantly reduced the root-mean-square error (RMSE) of the sensor output. The RMSE was compared with the reported in similar proposals, and our method resulted in higher performance. The proposal enables accelerometer calibration at low-cost, and anywhere and anytime, not only by experts in laboratories. Compensating the sensor’s inherent errors thus increases the accuracy of its output.
Beamforming Techniques for Over-the-Air Computation in MIMO IoT Networks
Authors: Lee Young-Seok , Lee Ki-Hun , Jung Bang Chul
Published: November 2020

In this paper, a novel beamforming technique is proposed as the over-the-air computation (AirComp) framework in a multiple-input multiple-output (MIMO) Internet-of-things (IoT) network consisting of multiple IoT sensors (STAs) and a single access point (AP). We assume that each IoT device has the channel state information (CSI) from itself to the AP and the AP has the global CSI of all IoT devices. We consider the mean squared error (MSE), which represents the reliability of function computation, as a performance metric. In short, each IoT device exploits maximum-ratio transmission (MRT) as a transmit beamforming technique to improve MSE performance by taking full advantage of multiple transmit antennae. Moreover, for the receive beamforming, we first consider a receive antenna selection (RAS) technique as the simplest beamforming method at the AP. Then, a semi-definite relaxation (SDR) method and a successive convex approximation (SCA) algorithm are considered and compared with each other in terms of MSE. Finally, we propose a novel two-step beamforming algorithm to further improve the MSE performance of the aforementioned techniques. We have numerically verified through computer simulations that the proposed framework has an improved MSE performance of about 6dB compared to the conventional single-input multiple-output (SIMO) AirComp, even with only two transmit antennae, and the modified MRT outperforms the other transmit beamforming techniques. Furthermore, the proposed receive beamforming technique, a two-step algorithm, shows the best performance in terms of MSE compared to prior studies.
Enhanced LoRaWAN Adaptive Data Rate for Mobile Internet of Things Devices
Authors: Farhad Arshad , Kim Dae-Ho , Subedi Santosh , Pyun Jae-Young
Published: November 2020

A long-range wide area network (LoRaWAN) is one of the leading communication technologies for Internet of Things (IoT) applications. In order to fulfill the IoT-enabled application requirements, LoRaWAN employs an adaptive data rate (ADR) mechanism at both the end device (ED) and the network server (NS). NS-managed ADR aims to offer a reliable and battery-efficient resource to EDs by managing the spreading factor (SF) and transmit power (TP). However, such management is severely affected by the lack of agility in adapting to the variable channel conditions. Thus, several hours or even days may be required to converge at a level of stable and energy-efficient communication. Therefore, we propose two NS-managed ADRs, a Gaussian filter-based ADR (G-ADR) and an exponential moving average-based ADR (EMA-ADR). Both of the proposed schemes operate as a low-pass filter to resist rapid changes in the signal-to-noise ratio of received packets at the NS. The proposed methods aim to allocate the best SF and TP to both static and mobile EDs by seeking to reduce the convergence period in the confirmed mode of LoRaWAN. Based on the simulation results, we show that the G-ADR and EMA-ADR schemes reduce the convergence period in a static scenario by 16% and 68%, and in a mobility scenario by 17% and 81%, respectively, as compared to typical ADR. Moreover, we show that the proposed schemes are successful in reducing the energy consumption and enhancing the packet success ratio.
Comparison of Product Sustainability of Conventional and Low-Carbon Apples in Korea
Authors: Kim Ik , Song Chan-young , Jeon Eui-chan
Published: November 2020

Apple is Korea’s most representative fruit. This study calculated absolute and relative product sustainability through environmental and cost assessments on apples by cultivation farming. The ISO 14040 life cycle assessment (LCA) methodology was used as a method of environmental assessment. Primary data for one year, 2018, were collected for the environmental assessment of conventional and low-carbon farming. The eco-points of apples cultivated by conventional and low-carbon farming using the LCA 2.07 × 10−3 and 1.17 × 10−3, respectively. The environmental impact of conventional apples was 78% higher than that of low-carbon apples. Cost assessment results show that every 1 kg of conventional and low-carbon apples costs USD 1.93 and USD 3.17, respectively, and their profits were USD 0.20 and USD 1.00, respectively. The total cost of conventional apples was lower than that of low-carbon apples, but its profit was one-fifth that of low-carbon apples. The UN Economic and Social Commission for Asia and the Pacific (UN ESCAP)’s eco-efficiency method was used to calculate absolute sustainability, and the concept of factor X was introduced to evaluate relative sustainability. Absolute sustainability for conventional and low-carbon apples was 96.01 (USD/eco-point) and 853.03 (USD/eco-point), respectively. Low-carbon apples’ relative sustainability was computed in factor 8.89. Finally, if all farms that grow conventional apples shift to cultivating low-carbon apples, they can save 58,111 tons of carbon dioxide. This amount is at least 3.4% of the nation’s greenhouse gas reduction in the agricultural and livestock sectors. This study provides a clear reason for the agricultural sector to shift its cultivation method from conventional to eco-friendly farming, including low-carbon farming.
Health Benefit Assessment of Running in Urban Areas against the Background of Particulate Matter 2.5 Concentration: The Munich Olympic Park
Authors: Zeindl Linda , Koenigstorfer Joerg
Published: November 2020

Air pollution while exercising is a health threat to urban residents. The study’s purpose is to conduct a health benefit assessment for running against the background of the Particulate Matter (PM) 2.5 concentration, taking the Munich Olympic Park as a case. The health benefit assessment was done under the assumption that people exercise at different PM2.5 concentrations and with varying duration and intensity. PM2.5 concentrations in and around the Olympic Park area were measured on 25 rain-free days from July until November 2019, using DC1700 (Dylos). The results show that, for the example of a 60-min run at a moderate intensity (60% VO2max), the PM2.5 concentration at which running no longer leads to additional health benefits amounts to 55 μg/m3 (tipping point). Harms outweigh health benefits at 95 μg/m3 (break-even point). The average PM2.5 concentration during the runs to and inside the Olympic Park was above the tipping point on one day, but did not reach the break-even point on any of the days. The average concentration across all days did not reach the tipping or break-even points for any running duration. The Munich Olympic Park provides a potentially health-enhancing space to residents from the perspective of PM2.5-related air pollution.
Impatiens dasyvexilla, a New Species of Impatiens (Balsaminaceae) from Hubei, China
Authors: Gan Qiliang , Li Xinwei
Published: November 2020

A new species of Impatiens L. from Hubei, China, I. dasyvexilla Q. L. Gan & X.W. Li, is described and illustrated in this paper. This species is closely allied with I. blepharosepala E. Pritz. in having leaves that are crowded at the upper part of the stem and lateral sepals that are ciliate at the margin. However, I. dasyvexilla is distinctive in its hirsute dorsal petal, conical glands at the leaf base, densely pubescent pedicel, and distal lobe of united petals cleft at the inner side. This new species should belong to Impatiens sect. Impatiens.
CULTUREMES AND ONOMASTICS
Authors: Rak M.
Published: November 2020

The article concerns a new ethnolinguistic concept - culturemes and including some toponyms and anthroponyms. As it turns out, some nomina propria have rich connotations and are carriers of information that allow us to identify identity, attitude to tradition and values, and are also elements of collective memory. Thus, they are culturemes.
ONOMASTICON OF THE VILLAGE VYOZHI UNDER KOSTROMA: MATERIALS FOR THE DICTIONARY (ACCORDING TO THE MEMOIRS OF L.P. PISKUNOV)
Authors: Basova N.F. , Gantsovskaya N.S.
Published: November 2020

The article presents their own names in the form of a consolidated onomasticon of the village of Vyozhi and its environs with a rich history as an example of a linguistic and cultural study of dialects of the Kostroma lowland. Based on the texts of memoirs of a native of the region and other sources, the authors come to the conclusion that there are great possibilities of propria onima for the ethnodialectic characteristic of a closed region.
ANTHROPONYMIC CORE OF THE INTEGRATED NATIONAL CULTURAL SPACE (IN TERMS OF ANALYSIS OF THE SMOLENSK MATERIAL)
Authors: Bubnova N.V.
Published: November 2020

The article suggests an approach to revelation anthroponymic markers of the integrated national cultural space, the creation and the preservation of which acquired especial significance in the 21st century due to the rapid globalization. Obviously, that proper names, which carry multifaceted historic and cultural information concerning people's life, constitute the major part of Russian cultural basis. Thus, the question arises, how to find these proper names in such a vocabulary diversity. Correspondingly, the exploration of proper names and theirs value on regional level using objective experimental data, can be considered as a “filtr” for the detection of such proper names. The experience of conducting such explorations of Smolensk's onomastic material is described in this article.
SPELLING OF BASHKIR FAMILY ANTHROPONYMS
Authors: Suleymanova R.A.
Published: November 2020

Particular attention is required to the correct transliteration into Russian of the names of representatives of non-Russian nationalities, including and the Bashkir people, whose anthroponymic system abounds in a large number of phonetic variants of surnames. The author, using an example of analysis of specific surnames from a research source, describes in detail those phonetic processes in the field of vowels that led to the polyvariance of Bashkir surnames, such as alternating sounds, stunning voiced consonants, and the loss of individual sounds.
TOPONYMS IN THE CONTEXT OF PSKOV BORDERZONE (SYNCHRONIC AND DIACHRONIC ASPECT OF PERCEPTION AND RESEARCH)
Authors: Kostiuchuk L.YA.
Published: November 2020

Based on several Pskov toponyms it has been demonstrated that a humanities scholar (linguist, literary scholar, historian, archeologist) attending any aspect of his/her research involving data collected in Pskov must take into consideration the Pskov borderzone.
TYPES OF WORKING TOOLS OF EQUIPMENT FOR LIFTING PLANTING MATERIAL WITH SOIL CLOD
Authors: Druchinin Denis , Voskoboinik Mihail
Published: November 2020

An analysis of the types of working tools used in serially produced equipment for digging large planting material with a soil clod has been carried out. The advantages and disadvantages of arcuate and segmental knives of lifting ma-chines have been evaluated from the point of view of working conditions, energy intensity of the working process and the shape of the soil clod dug out.
ANALYSIS OF TECHNOLOGY EFFICIENCY PROCUREMENT AND EXPORT OF TIMBER USED IN THE MODERN CONDITIONS OF RUSSIAN DEVELOPMENT
Authors: Posmetev Valerii , Nikonov Vadim
Published: November 2020

The article analyzes the known technologies of timber harvesting in the modern conditions of the development of Russia, reveals their main advantages and dis-advantages. Possible technological schemes of timber harvesting using the above technologies are presented. Possible ways of timber transportation by timber trucks are considered, as well as the used schemes of technological sequences for moving timber from forest areas to the consumer.
A Study on Impact of GST on Indian Digital Marketing System
Authors: Duraichamy J , Srinivasan K R
Published: November 2020

At the point when Prime Minister Modi’s government presented the one tax system the advanced marketing area was hit by it like each other industry. The target of this post is to take a gander at the different ways GST has gotten a change the web based marketing industry. The Goods and Service Tax was brought to the market in India from first July 2017 and are an endeavor from the occupant government to bring the country under one tax system. Business analysts accept this extreme change has long-standing consequences for the fund and economy of the nation. The GST will be represented by the Goods and Services tax Council alongside the Finance Ministry of India and is required to redo the system of taxation continued in the nation totally. So here’s a gander at how these GST changes impact the computerized marketing area. In the past tax system, taxation had a falling impact on ensuing stages which toward the end went about as a weight for the end shopper. In Goods and Services Tax, the tax will be imposed on every one of these stages and the risk with respect to the shopper will be diminished as purchasers in numerous phases of the cycle can profit the info credit from the cycle. Dissimilar to the past tax system, the falling impact will no more be required on each stage, so the expense of making an advertisement will unquestionably diminish. Because of information credit, the cost will descend. This advantage would be presently moved to the marketing financial plan of  organizations. As per driving money related foundations, input credit system will inevitably prompt organizations spending more on their Advertisement. In the past tax system publicizing cost was considered as a manufacturing cost, exposed to VAT and deals tax and no information credit was accessible to advertisers. Presently in the Goods and Services Tax time, costs acquired under publicizing will be accessible for input credit of 18% on taxes paid on advertisements. As indicated by experts, GST would build the promotion spend oforganizations because of the ease of making an advertisement and therefore the publicizing spend would increment by 10% of about INR 5,000 crore for 2017-18. Hence, the present study made an attempt to point out the major impact of GST on Indian digital marketing system.
A língua dentro da própria língua: Herberto Helder, Maria Filomena Molder e a lógica do poema.
Authors: De Oliveira Eduardo Jorge
Published: November 2020

Este ensaio faz parte de um estudo mais amplo sobre as contribuições de Walter Benjamin e Roman Jakobson para a compreensão da língua como um fenômeno material para a poesia. No caso mais preciso, estudamos esses aspecto na poesia de Herberto Helder, com atenção particular ao livro A faca não corta o fogo (2008/2014), que é lido à luz de Dia alegre, dia pensante, dias fatais (2017) de Maria Filomena Molder.
My friend Gil
Authors: Ferreira de Sousa Ângelo
Published: November 2020

Portugal, 1998, seguindo os passos da vizinha Espanha, mas com uma prudente modéstia, Lisboa inaugura a sua Expo. A época é de festa, de especulação imobiliária e de banquetes de dinheiro público. Estes grandes eventos festivos internacionais precisam sempre de uma desculpa. Em Portugal, o pretexto é o mesmo de sempre: os descobrimentos portugueses, a vocação universalista e oceânica dos portugueses. Mas, apesar de tudo, os tempos são outros e em vez do "Mundo Português" festejam-se os "Oceanos". O Gil – a simpática mascote oficial – está em todo o lado, em cada esquina, o amigo dos seus sponsors. Eu era estudante da escola de Belas Artes do Porto. Fazia desenhos em folhas A4 que depois fotocopiava e colava pela cidade. Era uma estratégia barata de curto-circuitar os percursos habituais das obras de arte, tanto os comerciais quanto os institucionais. A imagem do Gil abraçado a uma garrafa de um famoso refrigerante estadunidense – para o qual Álvaro de Campos escreveu um malogrado slogan publicitário – pareceu-me uma vítima ideal. A política externa dos EUA, e a sua longa história de campanhas bélicas, infelizmente sempre atual, era, aqui também, uma estratégia de ridicularizar a subserviência do pequeno Portugal.
Entrevista com Lídia Jorge
Authors: Torrão Nazaré , Jorge Lídia
Published: November 2020

A conversa com Lídia Jorge inaugura uma série de entrevistas da secção com o mesmo nome da revista Língua-lugar. Palavra puxa palavra e, na troca de ideias, apercebemo-nos de como as conversas com os autores podem revelar a interligação importantíssima das três linhas que guiam a revista: literatura, história e cultura. Particularmente na obra de uma escritora que se reclama da tradição literária portuguesa, cujas vivências pessoais foram (como as de todos nós) determinadas pelo tempo em que viveu e o lugar que a viu nascer, e que afirma claramente a importância do movimento pendular entre a cultura e a história que enformam as suas obras e a função formativa e informativa que deseja que as mesmas desempenhem na sociedade, através de uma experiência estética.

Esta entrevista a Lídia Jorge, orientada por Nazaré Torrão, docente da Unité de Portugais da Faculté des Lettres da Université de Genève, foi realizada a 2 de maio de 2019, na mesma faculdade, em dois contextos particulares: uma aula de literatura com um grupo de jovens que tinham estudado nesse semestre o romance Os Memoráveis, e um encontro com um grupo mais alargado, composto por estudantes universitários, jovens de turmas do Ensino de Português no Estrangeiro (EPE), professores do EPE e público genebrino que não seria particularmente conhecedor da realidade portuguesa. Esses dois encontros foram reunidos numa só entrevista.
Are Sociodemographic Characteristics and Experiences Associated to Behaviours on Residential Fires? A Young Adult Sample
Authors: INAL Ebru , KAYA Edip , METİN Baki Can , ERBAYDAR Nüket
Published: November 2020

This study aimed to determine the role of behaviors and factors associated to reduction of fire risks among university students. This cross-sectional study was conducted in a vocational higher education school (N=3886 students). Single stage systematic random sampling technique was used to select the participants from the population and data of the study was collected by face to face interviews. We interviewed 661 students. The mean age of the students was 20.1±2.3 years and 68.2% were male. It was found that 15.9% of participants had an experience in any type of fire, also 21.2% of the students had a training about fire. Although 85.8% stated that they were keeping children away from flammable materials, only 19.7% had a fire action plan to escape in their living places where they lived in. Students living in the dormitory (OR: 1.63), who had any education on fire (OR: 1.46), and who received first aid training (OR: 1.37) had more positive fire-related behavior. To reduce the risk of mortality, morbidity and economic burden of fires in countries and increase the level of readiness to fire where prevention and intervention services are limited, trainings on fire prevention, early intervention skills and basic first aid training for fires are needed among young people. Higher education period is appropriate for those trainings.
Aftershocks of the February 14, 2013 Ilin-Tas (Abyi) earthquake (Mw=6.7), Northeast Yakutia
Authors: Shibaev Sergey , Mackey Kevin , Koz’min Boris , Petrov Anatoliy , Petrunin Sergey , Peresypkin Dmitriy , Starkova Nyurgustana
Published: November 2020

The features of the development of the seismotectonic process of a long series of aftershocks of the strong Ilin-Tas earthquake in 2013 with Mw6.7 are presenting. For their registration in the closest to the epicenter zone, a joint Russian-American expedition with the participation of employees of the Yakutsk Branch of the Federal Research Center of the Unified Geophysical Service, RAS, and the Michigan University (USA) was organized. As a result, most of the aftershocks with KR6–7 (MS1–2) were registered by four field digital stations and four stationary stations of the Yakutsk Branch. The operation of digital stations using solar panels has shown their effectiveness in the extreme conditions of the north. During the year, over 4 thousand aftershocks were recording. The maximum aftershock activity occurred in February-May 2013 when the earthquake itself and almost all strong aftershocks occurred. Most of them arose at a depth of 9-12 km near the focus of the main event. The aftershocks area was localized in the zone of influence of the Ilin-Tas fault on an area of about 700 sq. km. The pa-rameters of the focal mechanisms (ISC Bulletin) showed that the movements in the focus of the aftershocks are thrust and its coincided with the movements in the center of the mainshock. This event and its aftershocks confirm the general picture of the Earth's crust compression in the Arctic-Asian seismic belt in the northeast of the Asian continent.
Registration opportunities of the temporary seismological network of IDG RAS on EEC
Authors: Goev Andrey , Volosov Sergey , Sanina Irina , Konstantinovskaya Nataliya , Nesterkina Margarita
Published: November 2020

In 2017, as a part of the study of the deep structure of the central part of the East European craton (EEC), three temporary seismic observation points were installed. They were equipped with broadband three-component sensors. The position of the stations is due to the need to build a seismic section in the sub-latitudinal direction in order to study the collision zone of the triple junction of mega blocks in the central part of the EEC. Together with the small-aperture seismic array "Mikhnevo" (MHVAR), temporary seismic stations form an area observation system with distances between stations of the order of 100 km. In 2018, the stations of the temporary network of the IDG RAS had registered 765 events of various nature: 222 industrial explosions and 543 earthquakes. During the year, the "Mikhnevo" array records about 5000 events, of which about 1000 are earthquakes at teleseismic and regional distances, and about 900 are identified as industrial explosions. Mutual processing of observed data on the temporary network and on the "Mikhnevo" in some cases (17%) made it possible to specify the results of the location of industrial explosions obtained previously at the "Mikhnevo" over 10 km.
Features of background microseisms at seismic stations of Kamchatka as a reflection of spectral characteristics of soils
Authors: Yakovenko Valentin , Shevchenko Yuri
Published: November 2020

The main goal of the work is to obtain the spectral characteristics of soils for 23 seismic stations in Kamchatka by studying the spectra of background microseisms. The spectra were calculated based on the recordings of digital cycle meters. The final estimates are obtained by averaging the spectra for each hour during the week. For some stations, the ratio of the spectrum of the horizontal component of the soil displacement to the spectrum of the vertical component (H/V) was interpreted.
IMPLEMENTASI MEDIA DAN METODE PEMBELAJARAN DALAM PENGUASAAN MATERI FIKIH DI MA AL-KHOIROT
Authors: Fuaidi Muhammad Hilmi
Published: November 2020

Implementasi Metode pembelajaran fikih ialah suatu pembelajaran dimana lebih menekankan pada pengalaman, jadi siswa ini diberi kesempatan untuk melakukan sesuatu hal sehingga nantinya ia mendapatkan pengalaman belajar. Tujuan penelitian ini yaitu: pertama, Mengetahui implementasi penguasaan media pembelajaran materi fikih di MA Al-Khoirot. Kedua, Mengetahui implementasi penguasaan metode pembelajaran materi fiqih di MA Al-Khoirot. Ketiga, Mengetahui langkah-langkah implementasi media dan metode pembelajaran mata pelajaran fikih di MA Al-Khoirot. Keempat, Mengetahui faktor-faktor pendukung dalam menerapkan media dan metode pembelajaran mata pelajaran fikih di MA Al-Khoirot. Metode Penelitian disini adalah penelitian kualitatif dengan desain penelitian yang dilakukan adalah penelitian lapangan (field reseach), yaitu penelitian diartikan sebagai cara ilmiah untuk mendapatkan data dengan tujuan dan kegunaan tertentu. Hasil penelitian Implementasi dari penguasaan media pembelajaran materi fikih di MA Al-Khoirot sudah diterapkan namun masih ada kekurangan yaitu guru belum semua menguasai media pembelajaran. Kedua, Untuk implementasi penguasaan metode pembelajaran materi fikih di MA Al-Khoirot sudah dicoba mengunkan semua metode namun pelaksanaannya selalu menggunakan metode caramah. Ketiga, Implemntasi langkah- langkah metode pembelajaran di MA Al-Khoirot, diantaranya: (a)perencanaan, guru membuat RPP termasuk memilih mempersiapkan alat dan media sebelum pembelajaran. b) Pelaksanaan pembelajaran dengan menerapkan apa yang sudah direncanakan dalam RPP, langkah terakhir yaitu evaluasi atau penilaian. Keempat, faktor pendukung dalam penerapan media dan metode pembelajaran diantaranya: inovasi guru dalam menerapkan metode pembelajaran, adanya sumber atau bahan yang mendukung untuk mata pelajaran fikih, dan adanya media untuk mendukung proses pembelajaran fikih dalam pembelajaran, serta alokasi waktu yang tepat pada tiap aktivitas pembelajaranya.
Knowledge Management Practices and Project Performance in Tharaka Nithi County, Kenya
Authors: Mburia Grace Syontheke , Bett Shadrack
Published: November 2020

Public infrastructure projects have taken a moderate pace since freedom. The records from the Kenya government 2014 on vision 2030 towards an internationally serious and prosperous Kenya demonstrate that the moderate pace in execution of open foundation ventures has prompted unsatisfactory street systems; under normalized open pleasantries; non network of the national matrix line to mechanical expected regions; inadequate relief measures in agrarian territories; and ruined motorization of the once serious enterprises that are going under. A major problem facing county governments is how to maximize on knowledge management in project management. The main objective of this study is to determine the effect of knowledge management practices on project performance in Tharaka Nithi County, Kenya. The study sets out to determine the effect of knowledge creation, knowledge sharing, knowledge acquisition and knowledge storage on project performance in Tharaka Nithi County, Kenya. The study was anchored on Knowledge-Based View Theory the Resource-Based Theory and the Organization Learning Theory. The study adopted cross sectional, explanatory and descriptive research designs targeting 120 management staff and employees of Tharaka Nithi County. A census study of all the targeted staff was carried out. Primary data was collected using structured questionnaire. The questionnaires were piloted with 12 staff from the neighboring Embu County to determine their return rate. The study used multiple regression analysis, frequencies, bar graphs, means and standard deviation measures. The study established that knowledge sharing influence project performance in Tharaka Nithi County. The study found that knowledge acquisition influences project performance in Tharaka Nithi County to a great extent. The study found that knowledge acquisition influences project performance in Tharaka Nithi County to a great. The study concludes that knowledge creation has a positive and significant influence on project performance in Tharaka Nithi County.The study will be used by project management team in other counties as it will help in formulation of proper knowledge management practices that promote effective project delivery.
La scuola va in tv. Una ricerca sulla qualità di un programma didattico al tempo del Covid 19
Authors: Ranieri Maria , Gaggioli Cristina , Cinotti Arianna , Ercoli Silvia
Published: November 2020

The history of Italian public television presents many educational programs created with the aim of offering a cultural and educational service supporting the school. The closure of the school, due to the health emergency from Covid 19, has given a strong incentive to the use of technologies in education, while highlighting the presence of an important digital divide. The Italian public television broadcaster (RAI) launched the programme “La Banda dei FuoriClasse” to support children and adolescents after the closure of schools, and integrate the public educational offer. The paper presents the results of a research promoted by RAI Gulp, University of Florence and University of Palermo, for the monitoring and evaluation of the didactic and communicative quality of the program. A specific grid was developed and 105 observation grids were collected for each episode. The results indicate that “La banda dei fuoriclasse” was highly appreciated by the listening group for the technical and didactic aspects that characterize the program, with a strong emotional implication
Characterization of Cutaneous Adverse Events Associated With PI3K Inhibitors in 11 Patients
Authors: Karri Padmavathi V. , Freemyer Benjamin D. , Pacha Omar , Patel Anisha B.
Published: November 2020

Introduction

Phosphoinositide 3-kinase (PI3K) inhibitors are a new class of cancer therapeutics that inhibits one or more enzymes in the PI3K/AKT/mTOR tumor growth pathway. As compared to other tyrosine kinase inhibitors, there is evidence that PI3K inhibitors have a higher incidence of severe cutaneous adverse events (CAEs) ranging from 2-21%. There is a lack of further characterization of clinical trials and management options for these CAEs.

Methods

A retrospective chart review of our institution's records between January 2015 and May 2019 was conducted; electronic medical records were queried by using a pharmacy database and ICD-10 codes for patients receiving PI3K inhibitor who experienced CAEs during therapy. These CAEs were characterized by two board-certified dermatologists at a major cancer center.

Results

Eleven patients were identified as having 12 cumulative CAEs. Average time to rash onset was 4 weeks, and the most common identified rashes were eczematous (25%) and morbilliform (17%). Four patients experienced a dose delay, and one patient immediately discontinued their PI3K inhibitor.

Conclusion

Although most CAEs caused by PI3K inhibitors in this study were limited to grade 1–2 and were controlled with topical corticosteroids and oral antihistamines, a number of patients experienced dose impact. This highlights the dermatologist's role in managing and minimizing interruption of therapy while maintaining quality of life.
The Promise of Poly(ADP-Ribose) Polymerase (PARP) Inhibitors in Gliomas
Authors: Majd Nazanin , Yap Timothy A. , Yung W. K. Alfred , de Groot John
Published: November 2020

Diffuse infiltrating gliomas are a clinically and molecularly heterogeneous group of tumors that are uniformly incurable. Despite our growing knowledge of genomic and epigenomic alterations in gliomas, standard treatments have not changed in the past 2 decades and remain limited to surgical resection, ionizing radiation, and alkylating chemotherapeutic agents. Development of novel therapeutics for diffuse gliomas has been challenging due to inter- and intra-tumoral heterogeneity, diffuse infiltrative nature of gliomas, inadequate tumor/drug concentration due to blood–brain barrier, and an immunosuppressive tumor microenvironment. Given the high frequency of DNA damage pathway alterations in gliomas, researchers have focused their efforts in targeting the DNA damage pathways for the treatment of gliomas. A growing body of data has shed light on the role of poly(ADP-ribose) polymerase (PARP) in combination with radiation and temozolomide in high-grade gliomas. Furthermore, a novel therapeutic strategy in low-grade glioma is the recent elucidation for a potential role of PARP inhibitors in gliomas with IDH1/2 mutations. This review highlights the concepts behind targeting PARP in gliomas with a focus on putative predictive biomarkers of response. We further discuss the challenges involved in the successful development of PARP inhibitors in gliomas, including the intracranial location of the tumor and overlapping toxicities with current standards of care, and promising strategies to overcome these hurdles.
ANALISIS KEAUSAN CYLINDER BAJA ST 70 MENGGUNAKAN TRIBOTESTER PIN-ON-DISC BERPELUMAS SAE 140 DAN VARIASI PEMBEBANAN
Authors: T.S Oktavian Yudha , Darmanto Darmanto , Syafa’at Imam
Published: November 2020

Keausan merupakan faktor penting yang harus diperhitungkan dalam proses perancangan permesinan karena menyebabkan terjadinya perubahan dimensi komponen yang selanjutnya berdampak pada performa komponen. Analisis terhadap keausan dapat dicari menggunakan beberapa metode diantaranya dengan hasil perhitungan secara analitik dan hasil penelitian secara eksperimental. Tribometer pin-on-disc adalah alat untuk mengetahui volume keausan. Penelitian ini bertujuan untuk mengetahui volume keausan dari pin dengan menggunakan variasi pembebanan yakni 19,62 N, 29,43 N dan 39,24 N dengan menggunakan material uji baja karbon rendah ST 70. Volume keausan ketiga percobaan tersebut sama yaitu sebesar 0,0076 mm3, tetapi jarak tempuh yang dibutuhkan berbeda. Sedangkan faktor keausan tertinggi terletak pada pembebanan 39,24 N yaitu sebesar 4,89 × 10-09. sedangkan nilai faktor keausan dari masing-masing pembebanan 19,62 N dan 29,43 N adalah 4,51 × 10-09, dan 4,71 × 10-09.

Kata kunci: Keausan pin, Pin-on-disc , Variasi pembebanan
ANALISIS SIFAT FISIK DAN MEKANIK PADA SAMBUNGAN LAS GESEK DUA JENIS MATERIAL ALUMUNIUM DAN TEMBAGA DENGAN VARIASI PUTARAN
Authors: Putra Andika Dwi , Purwanto Helmy , Syafa’at Imam
Published: November 2020

Teknologi pengelasan saat ini menjadi salah satu hal yang diutamakan dalam proses produksi industri. Salah satu metode pengelasan yang perlu dilakukan penelitian lebih lanjut adalah pengelasan gesek (friction welding). Tipe friction welding yang sering digunakan dalam industri manufaktur untuk menyambungkan benda bulat adalah continuous drive friction welding (CDFW). Proses pengelasan solid state dimana penggabungan diperoleh dari panas akibat gesekan dan tekanan. Penelitian ini bertujuan untuk menguji variasi putaran dalam tekanan konstan 3 Mpa dengan material alumunium dan tembaga terhadap sifat fisik dan mekanik.. Pengelasan dilakukan dengan variasi putaran 900 rpm, 1400 rpm dan 2000 rpm. Hasil pengujian memperlihatkan bahwa pada variasi putaran 900 rpm memperlihatkan struktur mikro lebih rapat dan butiran halus merata. Pada putaran 900 rpm memperlihatkan uji tarik tertinggi sebesar 83,689 Mpa dan kekerasan tertinggi pada sambungan las yaitu sebesar 87,3 HRB.

Kata kunci : las gesek, struktur mikro, uji tarik, uji kekerasan.
INVESTIGASI NUMERIK KEKUATAN STRUKTUR CHECK VALVE ½” 9K Psi MENGGUNAKAN FINITE ELEMENT SOFTWARE
Authors: Setiyana Budi , Kurniawan A Johan
Published: November 2020

Check Valve adalah sebuah alat yang digunakan untuk mengatur cairan hanya mengalir ke satu arah saja dan mencegah aliran ke arah sebaliknya (backflow). Check valve tidak menggunakan tuas untuk mengatur aliran (membuka dan menutup), tapi menggunakan pegas dan tekanan dari aliran itu sendiri. Karena fungsinya yang dapat mencegah aliran balik (backflow), check valve sering digunakan sebagai pengaman dalam sistem perpipaan baik untuk fluida cair maupun gas. Karena fungsinya yang sangat penting, komponen check valve sering menjadi bagian kritis dalam sistem perpipaan. Berkaitan dengan bentuk strukturnya yang sulit dianalisis secara teoritik, analisis kekuatan check valve harus dilakukan secara numerik dengan software Metoda Elemen Hingga. Tulisan ini menganalisis kekuatan komponen check valve diameter 0.5 inchi dengan tekanan internal 9000 psi dengan menggunakan software aplikasi berbasis Metoda Elemen Hingga berupa ANSYS. Hasil analisis menunjukkan bahwa struktur chek valve cukup cukup kuat baik dari sisi deformasi, tegangan maupun faktor keamanannya.

Kata kunci: ANSYS, backflo, Check Valve.
ANALISA PENGARUH VARIASI PUTARAN MESIN CNC MILLING MCV- 1100 TERHADAP SIFAT MEKANIK LOGAM ALUMINIUM AA 5052 - H112
Authors: Margen Sendie Yuliarto , Riyadi Slamet
Published: November 2020

CNC milling (Computer Numerically Controlled Milling) adalah merupakan salah satu proses permesinan non konvensional yang pergerakan meja mesin (sumbu X dan Y ) serta spindel (sumbu Z atau rumah cutter) dikendalikan oleh suatu program program berisi langkah-langkah perintah yang harus dijalankan oleh mesin CNC (huruf per huruf atau angka per angka) yang disebut dengan program NC (Numerecally Control). Tujuan penelitian ini adalah untuk mencari variasi putaran mesin agar diketahui putaran yang baik selama proses permesinan milling sehingga mendapatkan setting yang sesuai pada putaran mesin sehingga menghasilkan kualitas yang baik pada kekasaran permukaan dan kekerasan permukaan. Bahan yang digunakan adalah Aluminium AA 5052 - H112, alat yang digunakan adalah mesin Milling MCV- 1100 menggunakan pahat face mild, kemudian Aluminium di proses dengan milling dengan variasi putaran mesin 700 rpm, 900 rpm, 1100 rpm, 1300 rpm dengan kecepatan potong tetap 50 mm/menit, setelah proses selesai kemudian melakukan uji kekasaran permukaan dan kekerasan. Untuk nilai kekasaran pada putaran mesin 700 rpm=1,38 µm, 900 rpm= 1,25 µm, 1100 rpm=1,24 µm dan 1300 rpm=1,31 µm. Sedangkan nilai kekerasan untuk putaran mesin 700 rpm = 48,37 kg/mm², 900 rpm =48,62 kg/mm², 1100 rpm = 48,68 kg/mm². dan 1300 rpm = 48,11 kg/mm².

Kata kunci: Kekasaran, kekerasan, proses milling, variasi putaran mesin.
PENGARUH WAKTU ELECTROPLATING TERHADAP LAJU KOROSI DAN KEKUATAN TARIK PADA PELAPISAN BAJA KARBON RENDAH DENGAN HARDCHROME
Authors: Anwar Aziz Khoiril , Respati S. M. Bondan , Nugroho Agung
Published: November 2020

Baja ST 40 merupakan salah satu jenis baja karbon rendah, dengan kandungan karbon (C) kurang dari 0,3% C. Secara umum baja karbon rendah mempunyai beberapa kelebihan yaitu mempunyai sifat tangguh, ulet serta harganya relatif murah. Namun, baja karbon rendah juga memiliki beberapa kelemahan diantaranya laju korosi yang tinggi. Salah satu cara untuk meningkatkan ketahanan terhadap korosi pada baja adalah electroplating hardchrome. Tujuan dari penelitian ini yaitu untuk mengetahui pengaruh waktu electroplating terhadap laju korosi dan kekuatan tarik pada pelapisan baja karbon rendah dengan hardchrome. Proses electroplating hardchrome menggunakan variasi waktu proses 5 menit, 10 meni, 15 menit dan 20 menit dengan kerapatan arus 25 A/dm2 dan tegangan 6,5 volt. Pengujian laju korosi menggunakan metode kehilangan berat dengan media korosi larutan NaCl konsentrasi 3% dan pengujian tarik menggunakan alat uji tarik dengan standar ASTM D 638 tipe II untuk mengetahui nilai kekuatan tariknya. Hasil pengujian menunjukkan bahwa lapisan yang terbentuk pada proses electroplating hardchrome sangat dipengaruhi waktu proses pencelupan. Ketebalan lapisan mengalami kenaikan dengan meningkatnya waktu pencelupan electroplating hardchrome, dimana ketebalan lapisan tertinggi pada waktu 20 menit yaitu 233,3 µm. Nilai laju korosi mengalami penurunan dengan meningkatnya waktu pencelupan electroplating hardchrome, dimana laju korosi terendah pada waktu 20 menit yaitu 0,19 mm/th. Nilai kekuatan tarik mengalami penurunan karena material menjadi getas saat proses pencelupan, tetapi semakin lama proses waktu pencelupan electroplating hardchrome yang dilakukan maka kekuatan tarik akan semakin tinggi karena mengalami pertambahan ketebalan setiap variasi waktu, dimana kekuatan tarik tanpa adanya pelapisan yaitu 784,574 Mpa sedangkan kekuatan tarik tertinggi dengan adanya pelapisan pada waktu pencelupan selama 20 menit electroplating hardchrome yaitu 709,089 Mpa.

Kata kunci: electroplating hardchrome, waktu, laju korosi, kekuatan tarik
PENGARUH VARIASI SUSUNAN SERAT ECENG GONDOK (EICHHORNIA CRASSIPES) DENGAN RESIN POLYESTER SEBAGAI BAHAN KOMPOSIT ALTERNATIF ROMPI ANTI PELURU
Authors: Hanifi Bahar Qulub Iqbal , Purwanto H. , Syafa’at Imam
Published: November 2020

Serat eceng gondok merupakan salah satu material natural fiber alternatif dalam pembuatan komposit. Batang dari tanaman eceng gondok jika diproses dapat menghasilkan serat. Rompi anti peluru yang digunakan oleh militer, kepolisian, maupun sipil pada umumnya terbuat dari bahan serat aromatik polymides atau aramid. Serat-serat tersebut sampai saat ini diperoleh dengan cara impor dengan harga yang sangat mahal. Rompi anti peluru berbahan komposit serat telah banyak dikembangkan dari bahan lokal. Tulisan ini mengkaji sifat fisis dan mekanis serta kemampuan balistik komposit polimer polyester variasi susunan serat eceng gondok (eichhornia crassipes) sebagai bahan alternatif alami rompi anti peluru. Panel komposit dibuat dengan susunan serat searah vertical dan susunan serat berlapis (vertical/horizontal) dengan perbandingan vraksi volume serat dan matrik 30% dan 70% dengan ketebalam 10 mm. Hasil pengamatan pada serat eceng gondok menunjukan struktur mikro cenderung berbentuk silinder sehingga mempunyai penampang berbentuk lingkaran dan serat berwarna kuning kecoklatan. Nilai uji tarik rata-rata serat eceng gondok adalah 7,696 Kg/mm2. Kekuatan tarik komposit dengan susunan serat berlapis (vertical/horizontal) lebih tinggi dengan yield stress 9,522 MPa dan max stress 10,408 MPa dibandingkan dengan susunan serat searah vertical yaitu yield stress 4,535 MPa dan max stress 10,111 MPa. Hasil pengujian balistik menunjukan komposit dengan susunan berlapis juga lebih mampu menyerap energi impak dari proyektil.

Kata kunci: polyester, serat eceng gondok, susunan serat, rompi anti peluru.
ANALISIS PENGARUH KONSUMSI BBM KENDARAAN PENUMPANG 1200 CC TERHADAP LALU LINTAS KOTA SEMARANG
Authors: Anam Muhamad Surifil , Priangkoso Tabah , Darmanto Darmanto
Published: November 2020

Bahan bakar yang ada di Indonesia terdiri dari berbagai jenis, jenis-jenis bahan bakar tersebut disesuaikan dengan kebutuhan teknologi yang diterapkan di kendaraan. Sampai saat ini jenis bahan bakar motor bensin ada 4 jenis, yaitu : premium, Pertalite, Pertamax dan Pertamax Turbo, berbagai jenis bahan bakar tersebut memiliki karakteristik tersendiri,. Performa dari motor kendaraan dipengaruhi oleh beberapa faktor, diantaranya adalah jenis bahan bakar yang digunakan. Penelitian ini bertujuan untuk mengetahui pengaruh konsumsi tiap bahan bakar yang berbeda yaitu Pertalite, Pertamax dan Pertamax Turbo pada kendaraan penumpang terhadap lalu lintas di kota Semarang. Pengujian masing-masing jenis bahan bakar di kendaraan penumpang 1200 CC dengan bantuan sistem komputer OBD II ELM 327Mini yang akan menghasilkan data konsumsi bahan bakar pada kendaraan melalui aplikasi pada smartphone. Hasil penelitian menunjukkan penggunaan bahan bakar Pertamax mencapai jarak tempuh terjauh yaitu sebesar 20,49Km/L pada kecepatan 50Km/h, untuk bahan bakar Pertamax Turbo mampu mencapai jarak 18,79 pada kecepatan 30Km/h posisi gigi 4, sedangkan bahan bakar Pertalite hanya mampu menempuh jarak maksimal sebesar 16,74 Km/L pada kecepatan 36 Km/h.

Kata kunci: Konsumsi bahan bakar, Pertalite, Pertamax, Pertamax Turbo
THE ROLE AND SIGNIFICANCE OF USING THE VISUAL-COGNITIVE APPROACH IN HIGHER EDUCATION
Authors: Alimov Azam Anvarovich  , Xo’jjiyev Ma’murjon Yangiboyevich  , Tosheva Gulnora Djurayevna  , Muminjonova Muhayyo Gulomovna
Published: November 2020

This article discusses visual programs and their capabilities aimed at organizing higher education today. Based on innovative foreign experience, it is possible to fully understand the goals and objectives of science by further developing its methodological aspects. The development of visualized methodological support makes it possible to make fundamental aspects of science widely unknown.
KEYWORDS: visual, 3D model, video, Delphi, Flash program, cognitive-visual, content.