bluuebunny/crossref_metadata_2025 huggingface dataset:
Dampak Pemberdayaan Perempuan terhadap Perilaku Ekonomi Rumah Tangga (Studi Kasus pada Kelompok Wanita Tani di Kota Prabumulih, Sumatera Selatan)
Authors: Anggrainie Rona , Alfiati Siska
Published: June 2020

Anggrainie R, Alfiati S. 2019. The impact of women’s empowerment on household economic behavior (case study of farmer women’s group in Prabumulih, South Sumatra). Jurnal Lahan Suboptimal: Journal of Suboptimal Lands. 8(2):192-201.  This study aimed to analyze the level of family welfare as a result of the empowerment of women through the Women Farmers Group. The analytical method was carried out descriptively by tabulating data, then analyzed by comparing with the reference level of the prosperous family and its indicators based on the conditions set by the BKKBN. To analyze the impact of women's empowerment on household economic behavior, it was carried out using multiple linear regression analysis. Sampling was carried out by a simple random sampling method of 60 housewives who were members of the Wanita Tani Group. The results of this study indicated that when viewed from the indicators set by the BKKBN, the majority of Women Farmers Households were in the Prosperous Family II category. Simultaneously, the variable intensity of the participants, the number of family members, the age of the mother, the level of education of the mother had a significant effect on the level of income, maternal work time, and household consumption in the City of Prabumulih. But partially, the intensity of the participants had a significant effect on time spent working and household expenses, while on household income was not significant.
Concentration of Heavy Metals (Pb and Cu) in Alepes vari and Johnius belangerii from Musi River Estuary, Banyuasin District, South Sumatra
Authors: Agustriani Fitri , Purwiyanto Anna Ida Sunaryo , Putri Wike Ayu Eka , Fauziyah Fauziyah
Published: June 2020

Agustriani F, Purwiyanto AIS, Putri WAE, Fauziyah. 2019. Concentration of heavy metals (Pb and Cu) in alepes vari and johnius belangerii from musi river estuary, Banyuasin district, South Sumatra. Jurnal Lahan Suboptimal: Journal of Suboptimal Lands. 8(2):213-219. The Musi river estuary plays an important role as one of the fishing grounds. The high activity in the musi estuary has an impact on the ecosystems in this region, including the negative impact in the form of ecosystem changes caused by heavy metals. The aim of this study was to determine the concentrations of heavy metals (Pb and Cu) in Alepesvariand Johniusbelangerii in the Musi river estuary. Fish were obtained from fishermen who used the Gillnet Millennium (Ply) gear in July 2018 and were analyzed using the Atomic Absorption Spectrophotometer (AAS). The results showed that the concentration of  Pb  in J. belangerii was greater than A. vari, but the concentration of Cu  in  A. vari  was greater than in  J. belangerii. Concentration of  Pb has exceeded the limit for safe consumption based on National Agency of Drug and Food Control.
Farmer Mentoring in Determining Fertilization Dosage of Corn Plants (Zea Mays L.) Using Soil Test Equipment
Authors: Amirrullah Johanes , Hutapea Yanter , Ratmini NPS , Prabowo Agung
Published: June 2020

Amirrullah J, Hutapea Y, Ratmini NPS, Prabowo A. 2020. Farmer mentoring in determining fertilization dosage of corn plants (Zea mays L.) using soil test equipment. Jurnal Lahan Suboptimal: Journal of Suboptimal Lands 9(1): 102-108.Balanced fertilization is very important to do in marginal soils. The constraints in the use of marginal soils are physical, chemical and biological soil characteristics which do not support planting growth. Determination of fertilizer dosage for corn commodity in one region can be different depending on the available nutrient content that testing needs to be carried out. This study aimed to mentor farmers in taking appropriate soil samples and determined fertilizer doses according to location specifications and application of fertilizers on target using the Dry Soil Test Kit (Perangkat Uji Tanah Kering). This activity was carried out in Fajar Jaya Village, Ogan Komering Ulu District in February 2019.  The results of the soil analysis of the location used as a demonstration plot derived from the results of low soil fertility analysis with soil acidity at pH 4-5 with acid crystals, moderate P, K and C-organic nutrients were relatively low. The recommended fertilizer is as follows: urea 325 kg/ha given 3 times, one-third the dose, carried out 1 MST, 4 MST and 6 MST; TSP 200 kg/ha; KCl 125 kg/ha; 5,000 kg/ha of compost and 1,000 kg/ha of lime stocked during tillage 1 week before planting. Fertilization application method applied by farmers is not in accordance with the recommendations; consequently, it is necessary to fertilize to increase nutrient content.
Community Based Peat Conservation
Authors: Manalu Arman
Published: June 2020

Manalu A. 2020. Community based peat conservation. Jurnal Lahan Suboptimal: Journal of Suboptimal Lands 9(1): 11-22.Peat forms naturally in swamp areas when dead plants rot and accumulate, which then decompresses and accumulates within hundreds to thousands of years. Peat can store 20 times more carbon than mineral soil. Indonesia's peatlands store about 46 Gt of carbon or around 8-14% of world peat carbon (Maltby and Immirizi, 1993). Peat has an important ecosystem that acts as a protector of the Earth's atmosphere from the greenhouse effect, ecological buffer, saves biodiversity and a place to live for various flora and fauna. Peat have the ability to resemble sponges which make them suitable as water catchment areas. The purpose of this study is to provide an overview of the importance of protecting and maintaining peatlands as protectors of the Earth's atmosphere, controlling global climate by involving the community. This research was conducted with qualitative descriptive methods taken from various literature and national media. The results showed that land degradation has occurred due to the extensive conversion of peatlands into plantations which in the process of causing environmental damage and peat ecosystems in various regions of Indonesia. For this reason, community-based peat conservation needs to be done so that sustainability is maintained and the community gets economic benefits from peatlands.
Efficiency of Production Factors use of Corn Farming in Type C Tidal Land, Banyuasin Regency
Authors: Wirya Purba Yudhi Zuriah , Thony Ak Agoes , Daud Faizal
Published: June 2020

Purba YZW, Thony Ak A, Daud F. 2020. Efficiency of production factors use of corn farming in type C tidal land, Banyuasin Regency. Journal of Suboptimal Lands 9(1): 89-101.The purpose of this study were to analyze the production factors affecting corn farming, the efficiency and elasticity of the use of production factors in corn farming. This research was conducted in Mulia Sari Village, Tanjung Lago District, Banyuasin Regency. A random sample of 30 corn farmers from 320 populations was employed in this research. The results showed factors that had a significant positive effect on corn production were the urea fertilizer and SP-36 fertilizer, while the factor of herbicides had a negative effect, and factors of labor, KCl fertilizer, insecticide and ZPT had no significant effect, labor and growth regulator were technically inefficient, while the urea, SP-36, KCl fertilizers, and insecticides were technically efficient. Overall, the use of production factors in corn farming was technically efficient in term of economy and price with the elasticity value by 0.925.
COVID-19, Australia: Epidemiology Report 17: Fortnightly reporting period ending 24 May 2020
Authors:   COVID-19 National Incident Room Surveillance Team
Published: June 2020

Confirmed cases in Australia notified up to 24 May 2020: notifications = 7,135; deaths = 102. The incidence of COVID-19 has markedly reduced since a peak in mid-March. There have been no cases reported in SA, the NT or the ACT in the last four weeks. The numbers of new cases reported from other jurisdictions continue to be very low. Testing rates have been higher across all jurisdictions, with Victoria reporting an 85% testing rate increase and NSW a 40% increase over this period. The positivity rate nationally continues to remain very low at less than 0.1% over the reporting period. Continued high rates of testing are necessary to detect and mitigate the spread of COVID-19 in the community. Over the past fortnight, 45% of cases acquired their infection overseas. Of cases considered to be locally acquired over this period, most were associated with contacts of confirmed cases or were associated with known outbreaks. The highest rate of COVID-19 continues to be among people aged 65–79 years. Three-quarters of all cases in this age group have been associated with overseas travel, including several outbreaks linked to cruise ships. The lowest rate of disease is in children under 18, a pattern reflected in international reports. A small proportion of cases overall have experienced severe disease, requiring hospitalisation or intensive care with some fatalities. The crude case fatality rate amongst Australian cases is 1.4%. People who are older and have one or more comorbidities are more likely to experience severe disease. A combination of early case identification, physical distancing, public health measures and a reduction in international travel have likely been effective in slowing the spread of the disease in Australia. In addition, the median number of days between symptom onset and diagnostic testing has improved considerably from 7 days in the early phase of the outbreak to 1 day in the latest phase of the epidemic. Internationally, as at 24 May 2020, there have been recent increases in the number of daily cases reported globally. The largest numbers of both cases and deaths have been reported in the United States. Of the confirmed cases reported globally, the case fatality rate is approximately 6.5%. Countries in South America are starting to see rapid acceleration, while the United States is seeing a very slow decline in its daily new case numbers. In the South East Asia region, India and Bangladesh are seeing accelerating epidemics, compounded by the recovery from Cyclone Amphan. Increasing numbers of cases are also being reported in Africa, although the numbers are much smaller. In the Pacific there are very few daily new cases reported.
Työelämätaidot korkeakouluopetuksessa
Authors: Ainiala Terhi , Olsson Pia , Mattila Hanna , Vesalainen Marjo
Published: June 2020

Tarkastelemme opiskelijoiden kokemuksia työelämä­taitojen kehittymisestä tieteidenvälisellä kaupunkitutki­muksen, -suunnittelun ja -kehittämisen projektikurssil­la. Korkeakoulut ovat yhä kiinnostuneempia työelämä­taitojen kehittämiseen tutkintokoulutuksessa, samalla kun ne ovat virtaviivaistaneet toimintaansa ulkoista­malla ja yhtiöittämällä perinteisesti työelämätaitoihin keskittyneitä aikuis- ja täydennyskoulutusyksiköitään. Siirtymä sisältää jännitteitä ja pedagogisia haasteita. Minkälaisia työelämätaitoja opiskelijat kokivat kurssin kehittäneen ja miten he kuvaavat oppimistaan suhtees­sa monialaisuuteen ja oman alansa asiantuntijuuden kehittymiseen? Aineistona ovat ”Suunniteltu ja koettu kaupunki” -kurssien kyselyt ja muu materiaali. Tutki­muksessa hyödynnetään teoriaohjaavaa sisällönana­lyysia soveltaen Binkleyn ym. (2012) mallia työelämä­taitojen kategorioista. Opiskelijoiden nimeämät taidot liittyivät useimmin kategorioihin ”työskentelyn taidot” ja ”työskentelyn työkalut”. Tieteidenvälistä työskentelyä monialaisessa ryhmässä arvostettiin, sillä se vahvisti käsi­tystä omasta osaamisesta. Tämä liittyi kategoriaan ”taito toimia kansalaisena maailmassa”. ”Ajattelun taidot” ka­tegoria ilmeni muun muassa luovan ideoinnin ja kehit­tämisen taitoina. Analyysin perusteella tieteidenväliset projektit tukevat monipuolisesti eri taitojen kehittymistä ja tieteidenvälinen työskentely voi tukea oman alan asian­tuntijuuden syvenemistä.
Avointa ja ilmaista korkeakoulutusta kaikille?
Authors: Korpela Mari
Published: June 2020

Avoimet, verkossa järjestettävät massakurssit eivät ole muuttaneet koulutusta niin radikaalisti kuin innokkaimmat odottivat. Moocit ovat kuitenkin hyödynnettävissä monenlaisiin tarkoituksiin, kun ymmärretään niiden pedagogiset rajoitteet ja asetetaan oppimistavoitteet realistisesti.
SISTEM MONITORING EVALUASI DAN PELAPORAN KEGIATAN TARUNA ATKP MEDAN
Authors: Panjaitan Albert , Amren Hairul , Nasution Darmeli , Khair Rizaldy , Idris Iswandi
Published: June 2020

Perkembangan yang sangat pesat terjadi pada bidang teknologi informasi dan telekomunikasi saat ini mendorong masyarakta dunia memasuki era revolusi industri 4.0 yang serba cepat, sekaligus menjadikan informasi sentral dalam dunia industri maupun dunia usaha hingga dunia pendidikan. Akademi Teknik dan Keselamatan Penerbangan (ATKP) Medan merupakan institusi pendidikan di bawah naungan pemerintah yang sudah mulai menggunakan berbagai hal teknologi informasi dan telekomunikasi. Dengan adanya perkembangan tersebut berdampak memeberikan fasilitas yang dapat digunakan oleh pengguna layanan komunikasi, dan informasi, seperti Short Message Service (SMS) hingga sistem berbasis aplikasi menggunakan smartphone android maupun iOS. Layanan aplikasi sms hingga sistem aplikasi tersebut adalah teknologi yang memungkinkan manusia untuk mendapatkan atau mengirimkankan informasi kapanpun dan dimanapun dibutuhkan. Penelitian ini bertujuan untuk membuat sistem aplikasi monitoring evaluasi pelaporan kegiatan taruna di ATKP medan berbasis web app. Dalam pembuatannya, aplikasi ini disesuaikan dengan kenutuhan user/orang tua taruna dan institusi ATKP secara umum. Sistem aplikasi ini akan memberikan kemudahan kepada orang tua taruna dalam memonitoring, kegiatan hingga prilaku taruna selama pendidikan di ATKP Medan serta  kemudahan mengakses nilai dengan cepat. Sistem aplikasi ini dibuat dengan menggunakan bahasa pemrograman php (web).
Implementasi IOT pada Sistem Kehadiran Taruna ATKP Medan
Authors: Tommy Liber , S Rossi Peter , S Mutiara Widasari , Khair Rizaldy , Idris Iswandi
Published: June 2020

Dunia pendidikan saat ini khususnya di Perguruan Tinggi, tingkat kedisiplinan lebih diutamakan agar proses belajar mengajar dapat berlangsung dengan baik dan sesuai dengan jadwal yang sudah ditentukan. Permasalahan yang sering timbul dalam Perguruan Tinggi adalah keterlambatan Taruna dalam mengikuti proses mata kuliah, hal ini menimbulkan banyak kecurangan yang sering dilakukan Taruna pada daftar hadir. Tujuan dari rancang bangun sistem aplikasi absensi ini adalah untuk meningkatkan kedisiplinan, mengurangi tindak kecurangan pada daftar hadir, mengurangi peluang kesalahan pada saat perekapan daftar hadir diakhir semester di ATKP Medan. Dengan adanya perangkat ini yang dipasang pada setiap ruangan kampus yang berfungsi untuk mengidentifikasi kehadiran setiap Taruna yang mengikuti pelajaran. Alat ini menggunakan komponen utama yaitu ARDUINO UNO berfungsi sebagai mikrokontroller, RFID Reader berfungsi sebagai alat pengidentifikasi kartu Taruna, LCD berfungsi menampilkan nama Taruna yang melakukan cek kehadiran dan perangkat lunak Absensi berfungsi sebagai pengelola data kehadiran Taruna yang hanya dapat dijalankan pada sistem operasi windows. Taruna melakukan cek kehadiran menggunakan sebuah kartu dengan cara menempelkan pada Tag Reader RFID perangkat keras absensi. Hasil penelitian ini menghasilkan sistem absensi yang berjalan dengan baik pada ATKP Medan yang dapat memberikan kemudahan pada proses pengelolaan data Taruna, data mata kuliah, data dosen, data jadwal mata kuliah, data kelas, data kehadiran dan data ruangan.
SALİHA SCHEINHARDT’IN YAPITLARININ KÜLTÜRLERARASI BOYUTTA YABANCI DİL DERSLERİNE ETKİLERİ
Authors: ERYILMAZ Öznur , KARGI Birkan
Published: June 2020

Yabancı dil öğretiminde dil kültür ilişkisinde baskın unsur kültürdür. Zira bu alanda son dönem paradigma değişimine göre artık yabancı dil öğrenimi öğrenenlerin kişisel ve toplumsal gelişiminde önemli rol oynadığını ortaya koymaktadır. Yabancı dil öğretiminde ders içeriklerinin düzenlenmesinde iletişimsel yetinin geliştirilmesi bağlamında, amaca yönelik olarak kültürel değerlerin öğretilmesi kendi kültürü ile öteki kültürün benzer ve farklı yanlarının farkındalığının öncelenmesinin gerekliliği ortaya çıkmaktadır. Ancak uygulamada yabancı dil öğretiminde kültürlerarası yaklaşımlara yeterince yer verilmemektedir, dolayısıyla dil öğretiminde istendik sonuçlar elde edilememektedir. Sorunun giderilebilmesi için yabancı dil derslerinde öğrenenin merkezde olduğu çok kültürlü öğrenme modellerinden yararlanmanın gerekli olduğu görülmektedir. Kültürün önyargısız ve doğru şekilde tanıtılabilmesi için kültürlerarası yaklaşımı ön gören öğretim çıktılarına ve kültür ediniminin ön planda olduğu materyallere ihtiyaç duyulmaktadır. Bu doğrultuda okur odaklı yaklaşımın merkezde olduğu, öğrenenin beklenti ufkuyla örtüşen kültürlerarası boyutta yazılmış özgün metin seçimleri yabancı dil öğretiminde tam öğrenme hedefine ulaşılmasında verimli olabileceği düşünülmektedir. Bu bağlamda yabancı dil öğretiminde yaşamı çok kültürlü yoldan öğretim ortamlarına taşıyan özgün metinleri de göçmen yazınında bulmak mümkün gözükmektedir. Bu makalede, yabancı dil öğretiminde kültür aktarımları bağlamında göçmen yazınına ait yapıtların iletişimsel yetinin geliştirilmesine ve öğrenenlerin kendi dünyası ile hedef dilin kültürü hakkında düşün üretebilme ve kendini ifade edebilme becerisinin kazandırılmasına nasıl ve ne denli katkılar sağlayabileceği sorusu seçili yazara ait seçili yapıtlar yardımıyla irdelenmiştir. Amaca yönelik olarak bu makalede Türk göçmen edebiyatı bağlamında Saliha Scheinhardt’ın seçili eserlerinde kültürlerarası boyutların yabancı dil derslerine etkileri irdelenerek yabancı dil öğreniminin nasıl daha etkili ve kalıcı olabileceği ortaya konulmuştur.
Spatial and interannual variability of juvenile coho salmon growth in the Strait of Georgia (2012-2015)
Authors: Journey ML , Neville C , Young G , Trudel M , Beckman BR
Published: June 2020

We conducted a 4 yr (2012-2015) study of regional growth of juvenile coho salmonOncorhynchus kisutchin the Strait of Georgia (British Columbia, Canada). Size (fork length) and growth (insulin-like growth factor-1 [IGF-1] concentration) varied both regionally and inter-annually. Additionally, we found a positive relationship between IGF-1 concentration and fork length that varied between years, with slopes andy-intercepts higher in 2012 and 2014, respectively, as compared to 2013 and 2015. An ordinal increase of IGF-1 concentration from the south to north in 2012 and 2014 was coupled with an increase in the prevalence of both juvenile herring and juveniles of other fish species in the diet. Across all years, there was a positive relationship between regional mean IGF-1 concentration and regional mean percent of juvenile herring in the diet. Our study demonstrates relatively small-scale spatial heterogeneity in juvenile coho salmon growth that in part, was attributed to regional variation in diet. These findings also demonstrate the utility of short-term growth measures (such as IGF-1) for assessing relatively small-scale spatial and temporal differences in growth.
ARE INDONESIAN NURSES READY FOR HEALTHCARE ROBOTS DURING THE COVID-19 PANDEMIC?
Authors: Betriana Feni , Tanioka Tetsuya , Locsin Rozzano , Malini Hema , Lenggogeni Devia Putri
Published: June 2020

Healthcare robots are used in Indonesia and other countries to combat COVID-19 pandemic. This article was aimed to describe a perspective about healthcare robots, and to recommend ways for Indonesian nurses to engage with healthcare robots during the COVID-19 pandemic. One view hindering healthcare robot appreciation as partners of nurses is its threat to their practice. However, with the current environment of COVID-19 ‘frontline’ situations, increasing infections of patients with SARS COV2, limited personal protective equipment, and the fastidious nature of maintaining social distancing and mask-wearing, it may be best to view healthcare robots as significant partners to facilitate safety, and ease the demands of nursing care activities in order to safeguard human lives while enhancing human well-being. Educating healthcare practitioners about healthcare robot programming and assurance of its safe and secure use can advance robot appreciation as partners in healthcare. These goals, challenges, and recommendations can provide Indonesian nurses some pathways-to-readiness towards a partnership involving healthcare robots, particularly during this COVID-19 pandemic, and in the future.
DEVELOPING POP-UP BOOK WITH THE TOPIC OF HOW LIVING THINGS ADAPT TO ENVIRONMENT IN THE FOURTH GRADE OF ELEMENTARY SCHOOL
Authors: Yani Ni Komang Indah , Margunayasa I Gede , Kusmariyatni Ni Nyoman
Published: June 2020

This study aims to develop a pop-up book media with the topic of how living things adapt to the environment in the fourth grade of elementary school whose validity had been tested. This research is a development research conducted using ADDIE model which consists of 5 stages, namely: (1) analysis, (2) design, (3) development, (4) implementation, and (5) evaluation. However, in this study the implementation and evaluation stage were not carried out due to limited resources, manpower, costs, and research time. The subject of this research was the pop-up book while the object of this study was the validity of the developed media. The data collection method in this study was a questionnaire. The instrument used to measure the validity of the media was a rating scale in the form of assessment sheet from the experts. The validation data of pop-up book that had been collected was analyzed using the mean formula to find out the average score of the validity of the pop-up book. The average value of the validity score of the pop-up book that has been validated by the experts was 4.90 with very good qualifications. Based on the results, it can be stated that the pop-up book that had been developed were declared as valid and applicable.
Приведення у відповідність дослідних даних тріщиностійкості залізобетонних конструкцій їх теоретичним значенням
Authors: Kolchunov V.I. , Demianov A.I. , Iakovenko І.А. , Garba М.О.
Published: June 2020

У статті поставлено проблему приведення у відповідність значень дослідних і теоретичних параметрів тріщиноутворення залізобетонних конструкцій на прикладі проведених експериментальних досліджень залізобетонних конструкцій при крученні зі згином з урахуванням деформаційних впливів. Отримано дослідні дані тріщиноутворюючого навантаження, значень ширини розкриття тріщин по всьому профілю тріщин, відстаней між ними, що доповнюють наявний експериментальний матеріал. При цьому основний акцент зроблено на основні положення, робочі гіпотези і тонкий інструментарій механіки руйнування, адаптований до залізобетону. Як трансформаційний елемент між залежностями механіки руйнування та теорії залізобетону було обрано двоконсольний елемент. Розроблення такого двоконсольного елемента дозволить уникнути громіздких математичних перетворень із використанням комплексних чисел при виведенні розрахункових залежностей, прийнятних для практичного використання.
A Review and evaluation of Machine Translation methods for Lumasaaba
Authors: Nabende Peter
Published: June 2020

Natural Language Processing for under-resourced languages is now a mainstream research area. However, there are limited studies on Natural Language Processing applications for many indigenous East African languages. As a contribution to covering the current gap of knowledge, this paper focuses on evaluating the application of well-established machine translation methods for one heavily under-resourced indigenous East African language called Lumasaaba. Specifically, we review the most common machine translation methods in the context of Lumasaaba including both rule-based and data-driven methods. Then we apply a state of the art data-driven machine translation method to learn models for automating translation between Lumasaaba and English using a very limited data set of parallel sentences. Automatic evaluation results show that a transformer-based Neural Machine Translation model architecture leads to consistently better BLEU scores than the recurrent neural network-based models. Moreover, the automatically generated translations can be comprehended to a reasonable extent and are usually associated with the source language input.
Multifactorial model of adverse events and medical safety management
Authors: Voskanyan Yury , Shikina Irina , Andreeva Olga , Kidalov Fedor , Davidov David
Published: June 2020

The article describes a multifactorial model of adverse events related to the provision of medical care. It is shown that their origin is caused by the transformation of systemic causes (latent failures) acting at the level of medical organization, external microenvironment and macro-factors. Four types of global latent failures are described at the level of a medical organization related to: medical technology, work of medical personnel, work environment, and patient behavior. At the external microenvironment level, major latent threats are concentrated at the level of partners, suppliers and outsourcers. Among macro-factors influencing medical care safety especially important are the legal factors defining the status of medical errors and their consequences; economic model of state health care; financial provision of state guarantees and rationing of these volumes in regions and municipalities; availability of state medical care safety management programs; state regulation of medical activity; system of pre- and post-graduate medical education; system of labor regulation and remuneration of medical workers; society's attitude towards medical errors and its participation in the process of medical care safety management. The authors present an algorithm for implementation of a safety management system in a medical organization, including the construction of a new safety culture, an accounting system for recording of threats and incidents, a model for managing medical care safety built into the operational system of the organization.
Model of the communication process in a context of reading in French first language and French foreign language
Authors: Belyasova Julia , Martin Michel
Published: June 2020

This article aims to analyze, from a didactic point of view, readings offered to students of several schools in Belgium and the choices made by their teachers to support them in their task. This article is devoted to examining the methods used by teachers, explaining why and how they use them, and looking for consistency in their teaching practices. This data, based on theoretical axes, makes possible to know and identify the elements that make teaching devices effective. This research is therefore oriented towards the creation of a model representing the original operating mode on which the students in the French first language and the French foreign language classes worked.
Presentation, Modeling and Experiments of an Electrostatic Actuator Based Catom for Programmable Matter
Authors: Catry Romain , Mohand-Ousaid Abdenbi , Rakotondrabe Micky , Lutz Philippe
Published: June 2020

Nowadays, the concept of programmable matter paves the way for promising applications such as reshaping an object to test different configurations, modeling or rapid prototyping. Based on elementary modules, such matter can be arranged and disassembled easily according to the needs of the designers. Several solutions have been proposed to implement this concept. Most of them are based on modular self-reconfigurable robotics (SMR) that can work together and move relatively to one another in order to change their configuration. Achieving such behavior requires to solve some technological challenges in particular module’s geometry and actuation. In this paper, we build and develop a proof of concept for a catom based on electrostatic actuation. The modeling and analysis of the actuator functioning as catom is given after a comparison of various possible actuation. Simulations as well as experiments validations are afterwards carried out to confirm and demonstrate the efficiency of electrostatic actuation to achieve latching capabilities of the proposed catom.
Critical Parameter Identification for Safety Events in Commercial Aviation Using Machine Learning
Authors: Lee HyunKi , Madar Sasha , Sairam Santusht , Puranik Tejas G. , Payan Alexia P. , Kirby Michelle , Pinon Olivia J. , Mavris Dimitri N.
Published: June 2020

In recent years, there has been a rapid growth in the application of data science techniques that leverage aviation data collected from commercial airline operations to improve safety. This paper presents the application of machine learning to improve the understanding of risk factors during flight and their causal chains. With increasing complexity and volume of operations, rapid accumulation and analysis of this safety-related data has the potential to maintain and even lower the low global accident rates in aviation. This paper presents the development of an analytical methodology called Safety Analysis of Flight Events (SAFE) that synthesizes data cleaning, correlation analysis, classification-based supervised learning, and data visualization schema to streamline the isolation of critical parameters and the elimination of tangential factors for safety events in aviation. The SAFE methodology outlines a robust and repeatable framework that is applicable across heterogeneous data sets containing multiple aircraft, airport of operations, and phases of flight. It is demonstrated on Flight Operations Quality Assurance (FOQA) data from a commercial airline through use cases related to three safety events, namely Tire Speed Event, Roll Event, and Landing Distance Event. The application of the SAFE methodology yields a ranked list of critical parameters in line with subject-matter expert conceptions of these events for all three use cases. The work concludes by raising important issues about the compatibility levels of machine learning and human conceptualization of incidents and their precursors, and provides initial guidance for their reconciliation.
Impacts of LEDs in the Red Spectrum on the Germination, Early Seedling Growth and Antioxidant Metabolism of Pea (Pisum sativum L.) and Melon (Cucumis melo L.)
Authors: Solano Cristobal Javier , Hernández José A. , Suardíaz Juan , Barba-Espín Gregorio
Published: June 2020

(1) Background: In recent years, the use of light emitting diodes (LEDs) for plant production purposes has expanded. However, LEDs’ effect on seed germination and early seedling growth has been scarcely documented. (2) Methods: In this work, the effect of monochromatic red light (RL, 100 µmol m−2 s−1) for up to 60 min applied to seeds of pea and melon was analyzed in terms of seedling growth and antioxidant enzymes levels. An experimental LED chamber coupled to an electronic control system was developed for this purpose. (3) Results: RL did not alter the germination rate, but significantly improved the early seedling growth. Pea and melon seedlings showed the highest increase in fresh weight and length upon 15 min RL treatment of the seeds, whereas longer exposure times decreased seedling growth. Interestingly, RL favored the development of secondary roots in both species, which could favor the nutrition and water uptake by the seedling. The ability of the seedlings to respond to a hypothetical LED irradiance-induced oxidative stress was reflected differently on the antioxidant system of pea and melon. (4) Conclusions: These findings can be relevant for designing seed priming treatments to improve plant vigor, thus enhancing the productivity of important crop plants.
Double Cropping in Vitis vinifera L. Pinot Noir: Myth or Reality?
Authors: Poni Stefano , Gatti Matteo , Tombesi Sergio , Squeri Cecilia , Sabbatini Paolo , Lavado Rodas Nieves , Frioni Tommaso
Published: June 2020

A novel bud-forcing technique aimed at obtaining two crops (primary and forced) within the same season was tested on potted Pinot noir grapevines. Removing young, vegetative organs from primary shoots trimmed to six nodes in early summer allows dormant buds to break para-dormancy, leading to a delayed, second crop. Meanwhile, the primary crop is left untouched. In our study, bud-forcing was applied at three different timings (full flowering, fruit-set, groat-sized berries) and compared with an unforced control (UC). Vegetative growth, yield components, shoot and vine balance as leaf area-to-yield ratios, leaf gas exchange, and grape composition were determined. Regardless of the timing of application, forcing was effective at unlocking either apical or sub-apical dormant buds on the trimmed shoot, whereas the more basal nodes stayed dormant. The additional crop present on forced shoots was 40%–50% of primary crop, which equated to approximately 1 kg/vine for all treatments. Fruitfulness on newly formed forced shoots varied from 0.8 to 1.1 clusters/shoot. Primary clusters in vines subjected to forced treatments reached target maturity with a delay of 7–12 days compared to UC, whereas forced-crop, picked at the latest available date (October 7) showed higher total soluble solids, anthocyanins and phenolics than the primary crop while retaining higher acidity. This ripening behavior was reflected in the higher A rates measured in late season on the basal leaves of forced shoots versus those of primary shoots. Forcing did not compromise fruitfulness of the basal primary nodes, which set at about 1.2 inflorescence primordia/shoot. This is the first report supporting the feasibility of double cropping in Vitis vinifera L. in warm viticulture regions.
Effect of Microbiota-Selenoprotein on Meat Selenium Content and Meat Quality of Broiler Chickens
Authors: Mohamed Dalia A. , Sazili Awis Qurni , Teck Chwen Loh , Samsudin Anjas Asmara
Published: June 2020

Selenium (Se) is able to transform from inorganic to organic forms via many bacterial species. This feature is being considered for delivering more bioavailable selenium compounds such as selenocysteine and selenomethionine for human and animal diet. This study investigated the effects of bacterial selenoprotein versus inorganic Se on the carcass characteristics, breast meat selenium content, antioxidant status, and meat quality of broiler chickens. One hundred and eighty chicks were randomly allotted to five treatments of a basal diet supplemented with no Se, sodium selenite, Enterobacter cloacae Selenium (ADS1-Se), Klebsiella pneumoniae-Selenium (ADS2-Se), and Stenotrophomonas maltophilia-Selenium (ADS18-Se). The results showed that bacterial selenoprotein has the ability to deposit more Se in the breast meat compared to sodium selenite. Both Se sources reduced breast meat drip loss, cooking loss, shear force, and 2-thiobarbituric acid reactive substances (TBARS) significantly. It also increased total antioxidant (TAC) and glutathione peroxidase (GSH-Px) in comparison with the negative control. The highest activity of (GSH-Px), catalase (CAT), and superoxide dismutase (SOD) was found in bacterial selenoprotein. In conclusion, bacterial selenoprotein is more efficient than sodium selenite in increasing the breast meat Se deposition and oxidative capacity of broiler chickens. Therefore, it can be effectively used to produce Se-rich meat as a functional food.
Growing Trend of Fighting Infections in Aquaculture Environment—Opportunities and Challenges of Phage Therapy
Authors: Kowalska Justyna D. , Kazimierczak Joanna , Sowińska Patrycja M. , Wójcik Ewelina A. , Siwicki Andrzej K. , Dastych Jarosław
Published: June 2020

Phage therapy, a promising alternative to antimicrobial treatment of bacterial diseases, is getting more and more popular, especially due to the rising awareness of antibiotic resistance and restrictions in antibiotics’ use. During recent years, we observed a growing trend of bacteriophages’ application in aquaculture, which in each year reports high losses due to bacterial diseases. This review provides an update of the status of bacteriophage therapy for the treatment and prevention of infections in the aquatic environment. As it is still mostly in the scientific stage, there are a few constraints that may prevent effective therapy. Therefore, specific characteristics of bacteriophages, that can act in favor or against their successful use in treatment, were described. We underlined aspects that need to be considered: specificity of phages, bacterial resistance, safety, immune response of the host organism, formulation, administration and stability of phage preparations as well as bacteriophages’ influence on the environment. The biggest challenge to overcome is finding the right balance between the desired and problematic characteristics of bacteriophages. Finally, regulatory approval challenges may be encountered by bacteriophage manufacturers. Even though there are still some technical constraints connected with the global use of bacteriophage therapy, it was concluded that it can be successfully applied in aquaculture.
Proteomic Characterization of Antibiotic Resistance, and Production of Antimicrobial and Virulence Factors in Streptococcus Species Associated with Bovine Mastitis. Could Enzybiotics Represent Novel Therapeutic Agents Against These Pathogens?
Authors: Abril Ana G. , Carrera Mónica , Böhme Karola , Barros-Velázquez Jorge , Rama José-Luis R. , Calo-Mata Pilar , Sánchez-Pérez Angeles , Villa Tomás G.
Published: June 2020

Streptococcus spp. are major mastitis pathogens present in dairy products, which produce a variety of virulence factors that are involved in streptococcal pathogenicity. These include neuraminidase, pyrogenic exotoxin, and M protein, and in addition they might produce bacteriocins and antibiotic-resistance proteins. Unjustifiable misuse of antimicrobials has led to an increase in antibiotic-resistant bacteria present in foodstuffs. Identification of the mastitis-causing bacterial strain, as well as determining its antibiotic resistance and sensitivity is crucial for effective therapy. The present work focused on the LC–ESI–MS/MS (liquid chromatography–electrospray ionization tandem mass spectrometry) analysis of tryptic digestion peptides from mastitis-causing Streptococcus spp. isolated from milk. A total of 2706 non-redundant peptides belonging to 2510 proteins was identified and analyzed. Among them, 168 peptides were determined, representing proteins that act as virulence factors, toxins, anti-toxins, provide resistance to antibiotics that are associated with the production of lantibiotic-related compounds, or play a role in the resistance to toxic substances. Protein comparisons with the NCBI database allowed the identification of 134 peptides as specific to Streptococcus spp., while two peptides (EATGNQNISPNLTISNAQLNLEDKNK and DLWC*NM*IIAAK) were found to be species-specific to Streptococcus dysgalactiae. This proteomic repository might be useful for further studies and research work, as well as for the development of new therapeutics for the mastitis-causing Streptococcus strains.
Cold-Pressed Nigella Sativa Oil Standardized to 3% Thymoquinone Potentiates Omega-3 Protection against Obesity-Induced Oxidative Stress, Inflammation, and Markers of Insulin Resistance Accompanied with Conversion of White to Beige Fat in Mice
Authors: Shen Hsin Hsueh , Peterson Stephen J. , Bellner Lars , Choudhary Abu , Levy Lior , Gancz Leah , Sasson Ariel , Trainer Joseph , Rezzani Rita , Resnick Abraham , Stec David E. , Abraham Nader G.
Published: June 2020

Excessive lipid accumulation in white adipose tissue (WAT) results in adipocyte hypertrophy and chronic low-grade inflammation, which is the major cause of obesity-associated insulin resistance and consequent metabolic disease. The development of beige adipocytes in WAT (browning of WAT) increases energy expenditure and has been considered as a novel strategy to counteract obesity. Thymoquinone (TQ) is the main bioactive quinone derived from the plant Nigella Sativa and has antioxidative and anti-inflammatory capacities. Fish oil omega 3 (ω3) enhances both insulin sensitivity and glucose homeostasis in obesity, but the involved mechanisms remain unclear. The aim of this study is to explore the effects of TQ and ω3 PUFAs (polyunsaturated fatty acids) on obesity-associated inflammation, markers of insulin resistance, and the metabolic effects of adipose tissue browning. 3T3-L1 cells were cultured to investigate the effects of TQ and ω3 on the browning of WAT. C57BL/6J mice were fed a high-fat diet (HFD), supplemented with 0.75% TQ, and 2% ω3 in combination for eight weeks. In 3T3-L1 cells, TQ and ω3 reduced lipid droplet size and increased hallmarks of beige adipocytes such as uncoupling protein-1 (UCP1), PR domain containing 16 (PRDM16), fibroblast growth factor 21 (FGF21), Sirtuin 1 (Sirt1), Mitofusion 2 (Mfn2), and heme oxygenase 1 (HO-1) protein expression, as well as increased the phosphorylation of Protein Kinase B (AKT) and insulin receptors. In the adipose tissue of HFD mice, TQ and ω3 treatment attenuated levels of inflammatory adipokines, Nephroblastoma Overexpressed (NOV/CCN3) and Twist related protein 2 (TWIST2), and diminished adipocyte hypoxia by decreasing HIF1α expression and hallmarks of beige adipocytes such as UCP1, PRDM16, FGF21, and mitochondrial biogenesis markers Peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1α), Sirt1, and Mfn2. Increased 5′ adenosine monophosphate-activated protein kinase (AMPK) and acetyl-CoA carboxylase (ACC) phosphorylation and HO-1 expression were observed in adipose with TQ and ω3 treatment, which led to increased pAKT and pIRS1 Ser307 expression. In addition to the adipose, TQ and ω3 also increased inflammation and markers of insulin sensitivity in the liver, as demonstrated by increased phosphorylated insulin receptor (pIR tyr972), insulin receptor beta (IRβ), UCP1, and pIRS1 Ser307 and reduced NOV/CCN3 expression. Our data demonstrate the enhanced browning of WAT from TQ treatment in combination with ω3, which may play an important role in decreasing obesity-associated insulin resistance and in reducing the chronic inflammatory state of obesity.
Predicting Student Performance in Higher Educational Institutions Using Video Learning Analytics and Data Mining Techniques
Authors: Hasan Raza , Palaniappan Sellappan , Mahmood Salman , Abbas Ali , Sarker Kamal Uddin , Sattar Mian Usman
Published: June 2020

Technology and innovation empower higher educational institutions (HEI) to use different types of learning systems—video learning is one such system. Analyzing the footprints left behind from these online interactions is useful for understanding the effectiveness of this kind of learning. Video-based learning with flipped teaching can help improve student’s academic performance. This study was carried out with 772 examples of students registered in e-commerce and e-commerce technologies modules at an HEI. The study aimed to predict student’s overall performance at the end of the semester using video learning analytics and data mining techniques. Data from the student information system, learning management system and mobile applications were analyzed using eight different classification algorithms. Furthermore, data transformation and preprocessing techniques were carried out to reduce the features. Moreover, genetic search and principle component analysis were carried out to further reduce the features. Additionally, the CN2 Rule Inducer and multivariate projection can be used to assist faculty in interpreting the rules to gain insights into student interactions. The results showed that Random Forest accurately predicted successful students at the end of the class with an accuracy of 88.3% with an equal width and information gain ratio.
Tobacco, Alcohol and Family History of Cancer as Risk Factors of Oral Squamous Cell Carcinoma: Case-Control Retrospective Study
Authors: Tenore Gianluca , Nuvoli Alessandro , Mohsen Ahmed , Cassoni Andrea , Battisti Andrea , Terenzi Valentina , Della Monaca Marco , Raponi Ingrid , Brauner Edoardo , De Felice Francesca , Musio Daniela , Di Gioia Cira Rosaria Tiziana , Messineo Daniela , Mezi Silvia , Di Carlo Stefano , Botticelli Andrea , Valentini Valentino , Marchetti Paolo , Tombolini Vincenzo , De Vincentiis Marco , Polimeni Antonella , Romeo Umberto
Published: June 2020

The aim of the study is to observe retrospectively the correlation between Oral Squamous Cell Carcinoma (OSCC) and risk factors; including tobacco, alcohol and Family History of Cancer (FHC). A total of 478 patients were included retrospectively from the database of the Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome. A Test Group (TG) consisted of 239 patients with a confirmed diagnosis of OSCC. A Control Group (CG) consisted of 239 patients without history and/or diagnosis of oral cancer. The logistic regression models were used to calculate the adjusted Odd Ratios (ORs) associated with alcohol, tobacco and FHC; including the General Family History of Cancer (GFHC) and Family History of Head and Neck Cancer (FHHNC) and their 95% Confidence Intervals (CI). The high rate of tobacco consumption was associated with an OR of 1.035 (95% CI 1.001–1.070) and a statistical significance (p = 0.041). Drinker patients showed a significant risk of developing OSCC (p = 0.05) and the OR was 1.035 (95% CI 1.010–1.061). The GFHC was associated with a marginal risk of OSCC with an OR of 1.095 (95% CI 0.953–1.259), without significance (p = 0.199). The FHHNC showed a notable risk increase with an OR of 1.871 (95% CI 0.902–3.882), without significance (p = 0.092). Alcohol and tobacco may be associated with an increase in the risk of OSCC.
Numerical Analysis of Midinfrared D-Shaped Photonic-Crystal-Fiber Sensor Based on Surface-Plasmon-Resonance Effect for Environmental Monitoring
Authors: Chen Nan , Chang Min , Lu Xinglian , Zhou Jun , Zhang Xuedian
Published: June 2020

An exciting prospect for the sensing community is the potential of midinfrared fiber sensors. Taking advantage of the design flexibility of photonic crystal fiber and the high excitation loss of gold layers, a high-performance midinfrared D-shaped sensor based on the surface-plasmon-resonance effect was designed and numerically investigated by a mature finite-element tool. Numerical results showed that the designed fiber is especially suitable for sensing. In an operating wavelength ranging from 2.9 to 3.6 μm, maximal wavelength sensitivity of 11,500 nm/refractive index unit (RIU) and a maximal refractive index (RI) resolution of 8.7 × 10−6 RIU were obtained by the wavelength-interrogation method when analyte RI varied from 1.36 to 1.37. Maximal amplitude sensitivity of 230 RIU−1 was obtained by the amplitude-interrogation method with a high linearity of 0.99519 and an adequate figure of merit of 142. Additionally, the sensor had good fabrication tolerance. Our sensor is a promising candidate for environmental monitoring.
Fatty Acids from Ganoderma lucidum Spores: Extraction, Identification and Quantification
Authors: Salvatore Maria Michela , Elvetico Alessandro , Gallo Monica , Salvatore Francesco , DellaGreca Marina , Naviglio Daniele , Andolfi Anna
Published: June 2020

Ganoderma lucidum is a rich and promising source of bioactive compounds capable of positively influencing the human health. For this reason, G. lucidum is the target of vigorous investigational activities, focusing on the extraction of substances with potential biomedical applications, as well as on the improvement of analytical methodologies for their screening. In the present study, three different extraction processes (i.e., extraction with n-hexane, in Soxhlet apparatus with n-hexane and reflux with chloroform) were employed to evaluate the lipid content of G. lucidum spores. The experimental data from the produced extracts were compared with ones from the commercial liquid extract obtained with supercritical CO2 extraction of G. lucidum spores. To achieve this goal, the gas chromatography-mass spectrometry (GC-MS) methodology was optimized for an accurate and reliable identification and quantification of fatty acids in triglycerides of G. lucidum spores. Significant amounts of oleic and palmitic acids were found in the examined extracts. In particular, our findings show that economical and convenient extraction procedures, which are simple, low cost and no need for expensive tools, allow to produce extracts with a lipid composition similar to the one obtained with hard strategies of extraction.