bluuebunny/crossref_metadata_2025 huggingface dataset:
Efficient quantum measurement of Pauli operators in the presence of finite sampling error
Authors: Crawford Ophelia , Straaten Barnaby van , Wang Daochen , Parks Thomas , Campbell Earl , Brierley Stephen
Published: January 2021

Estimating the expectation value of an operator corresponding to an observable is a fundamental task in quantum computation. It is often impossible to obtain such estimates directly, as the computer is restricted to measuring in a fixed computational basis. One common solution splits the operator into a weighted sum of Pauli operators and measures each separately, at the cost of many measurements. An improved version collects mutually commuting Pauli operators together before measuring all operators within a collection simultaneously. The effectiveness of doing this depends on two factors. Firstly, we must understand the improvement offered by a given arrangement of Paulis in collections. In our work, we propose two natural metrics for quantifying this, operating under the assumption that measurements are distributed optimally among collections so as to minimise the overall finite sampling error. Motivated by the mathematical form of these metrics, we introduceSORTEDINSERTION, a collecting strategy that exploits the weighting of each Pauli operator in the overall sum. Secondly, to measure all Pauli operators within a collection simultaneously, a circuit is required to rotate them to the computational basis. In our work, we present two efficient circuit constructions that suitably rotate any collection ofkindependent commutingn-qubit Pauli operators using at mostkn−k(k+1)/2andO(kn/log⁡k)two-qubit gates respectively. Our methods are numerically illustrated in the context of the Variational Quantum Eigensolver, where the operators in question are molecular Hamiltonians. As measured by our metrics,SORTEDINSERTION outperforms four conventional greedy colouring algorithms that seek the minimum number of collections.
Trabalho docente em tempos de pandemia: mais um retrato da desigualdade educacional brasileira
Authors: Oliveira Dalila Andrade , Pereira Junior Edmilson Antonio
Published: January 2021

O artigo apresenta resultados de pesquisa sobre o trabalho docente e a educação básica com a pandemia do coronavírus (Covid-19). Expõe aspectos operacionais e metodológicos da pesquisa com 15.654 professores das redes públicas de ensino do país e cujos dados foram coletados por meio de formulário eletrônico. O texto traz informações sobre o suporte institucional oferecido pelas redes de ensino e os recursos tecnológicos de professores e estudantes para desenvolver as atividades. Aborda, ainda, a carga de trabalho dos professores e a participação dos estudantes nas atividades. Dentre os resultados obtidos, destacam-se a significativa variação de condições entre redes públicas de ensino e a relativa sobrecarga de trabalho dos professores.
A review of working fluid mixtures for low temperature power cycles and their thermodynamic modeling
Authors: Noriega-Sánchez Carlos Javier
Published: January 2021

This paper summarizes a bibliographic review of the main articles published in recent years in the power cycles area, with special emphasis on working fluid mixtures. Likewise, the most relevant theoretical fundaments for performing the mathematical modeling of this class of working fluids and, therefore, obtaining their thermodynamic properties, as well as the experimental methods used in the characterization of the phase equilibrium that allow obtaining the adjustment parameters are covered in this article.
El reto del desarrollo seguro de aplicaciones IoT en un mercado acelerado
Authors: Rueda Rueda Johan Smith
Published: January 2021

Un sistema de Internet de las cosas (IoT) comprende dispositivos, aplicaciones y servicios que se integran para soportar procesos organizacionales. Los desarrolladores IoT se enfrentan a dos tipos de retos: los tecnológicos y los de seguridad; sumado a esto, un mercado cambiante y altamente competitivo. El panorama de la seguridad en IoT refleja un reto para la ciberseguridad, porque se deben gestionar y controlar una variedad de amenazas cibernéticas y vectores de ataque que pueden ser usadas por los cibercriminales para comprometer infraestructuras tecnológicas. La seguridad es un requisito de calidad de los sistemas IoT, y como tal, debe ser atendida desde en las fases de diseño y desarrollo. Este artículo aborda el reto del desarrollo seguro de dispositivos y aplicaciones IoT en un mercado que exige desarrollo y actualizaciones de forma ágiles, y presenta dos alternativas propuestas en la literatura para gestionar el desarrollo seguro con la filosofía del desarrollo ágil. De igual forma, invita a orientar esfuerzos de investigación, desarrollo tecnológico y formativo en temas relacionados con la implementación de la ciberseguridad en el desarrollo seguro de aplicaciones IoT.
Case finding of early pregnancies at risk of preeclampsia using maternal blood leptin/ceramide ratio: multi-omics discovery and validation from a longitudinal study
Authors: Huang Qianyang , Hao Shiying , You Jin , Yao Xiaoming , Li Zhen , Schilling James , Li Zhen , Thyparambil Sheeno , Liao Wei-Li , Zhou Xin , Mo Lihong , Ladella Subhashini , Fan David , Whitin John , Cohen Harvey , McElhinney Doff , Wong Ronald , Shaw Gary , Stevenson David , Sylvester Karl , Ling Xuefeng
Published: January 2021

Objective To evaluate whether longitudinal measurements of serological
adipokines and sphingolipids can predict preeclampsia early in
gestation. Design Retrospective multi-omics discovery and longitudinal
validation. Setting Maternity units in two US hospitals. Methods A
multi-omics approach integrating genomic and lipidomic discoveries was
employed to identify leptin (Lep) and ceramide (Cer) as novel PE early
gestational biomarkers. The levels of placental growth factor (PlGF),
soluble fms-like tyrosine kinase (sFlt-1), Lep, and Cer in maternal sera
were then determined by enzyme-linked immunosorbent and liquid
chromatography-tandem mass spectrometric assays. Main outcome measures
Interval from positive prediction to confirmative diagnosis. Results
Genomic meta-analysis compiled six PE placental cohorts with 78 PE and
95 non-PE control placentas. The Testing Cohort included sera from 7
non-PE and 8 PE women collected at confirmatory diagnosis. The
Validation Cohort included sera from 20 non-PE and 20 PE women collected
longitudinally through gestation. Our findings revealed a marked
elevation of maternal serum Leptin/Ceramide (d18:1/25:0) ratio from
early gestation (a median of 23 weeks) when comparing later
PE-complicated with uncomplicated pregnancies. The maternal Lep/Cer
(d18:1/25:0) ratio significantly outperformed the established
sFlt-1/PlGF ratio in predicting PE for sensitivity (85% vs. 40%),
positive predictive value (89% vs. 42%), and AUC (0.92 vs. 0.52) from
5 to 25 weeks of gestation. Conclusions Non-invasive longitudinal
assessment by serological evaluation of Lep/Cer (d18:1/25:0) ratio can
case find early pregnancies at risk of preeclampsia, outperforming
sFlt-1/PlGF ratio test. Tweetable abstract Non-invasive longitudinal
assessment by serological evaluation of Lep and Cer ratio can predict
preeclampsia early in gestation.
Multiple Intracardiac Masses as the Primary Presentation of a Systemic Inflammatory Disease: A Big Challenge (Case Report)
Authors: Khalaji Zahra , Galeshi Bahar , almasi simin , Parsaee Mozhgan , Pouraliakbar Hamidreza
Published: January 2021

Antiphospholipid syndrome (APS) classically presents with venous or
arterial thrombosis and pregnancy morbidity. Although clinical
manifestations with fever of unknown origin and intracardiac masses are
unusual, in a patient with prolonged fever and multiple intracardiac
thrombi, systemic inflammatory diseases such as APS should be
considered.
Following the trace of Belgrade’s old building names: Pirincana and/or Pirinc-han
Authors: Djindjic Marija
Published: January 2021

This paper is dedicated to the names of two old buildings, which used to be
situated in Dorcol. Pirincana was one of the names of a residence of the
Austrian commander of Belgrade (1717-1739). During Ottoman rule, Pirinc-han
was one of the names for a building used as a trading post. During Austrian
rule, army pharmacies were situated in Pirinc-han. Confusion caused by the
similar names of these two buildings brought many issues relating to their
identification, location and dates of demolition. Due to the fact that the
names Pirincana and Pirinc-han have not been the subject of particular
language research, we will focus on the determination of the origin of the
aforementioned buildings. The motivation for the naming of Pirinc-han is
most likely derived from the period?s other hans in different parts of the
Ottoman Empire. They got their name due to rice trading that was once
conducted there. There exist two hypotheses as to the origin of the lexeme
pirincana, the name of the aforementioned building. As the motivation for
the naming, pirinc or pirinac (brass) could be claimed. In both cases
morphological adaptation led to the subsequent resemantization. There is no
doubt that Pirincana was one of the names of a residence of the Austrian
commander in Belgrade. Furthermore, some historians incorrectly claim that
the name Pirincana is just a synonym for Pirinc-han, because there are many
sources leading to the con?firmation that the residence of the commander was
also named Pirincana among the populace.
“Making the face beautiful”(feature on medieval beauty products)
Authors: Radic Radivoj
Published: January 2021

In the Middle Ages, people had an ambivalent relationship to the beauty
products: some were fully supportive of the attempts to beautify oneself,
while the others, first and foremost the representatives of the church,
frowned upon this notion. This feature represents a show?case of the advice
and recipes for beautification from two medical collections created in the
late Middle Ages. These are the Byzantine medical treatise (dating from 11th
to 14th century) and the collection of Serbian medieval medicine, the
so-called Hodoch Code (dating from the end of the 14th or beginning of the
15th century). The treatise is focusing more on the practical advice than
theoretical knowledge, and its greatest part is dedicated to pharmacology.
Hodoch Code (Hodoski zbornik) is in fact a therapeutic collection, and it
consists of diverse medical texts. These collections contain the advice how
to make one?s face white, hair black or blond, but most certainly rich in
volume, as well as recipes for treating facial lines, warts, freckles,
cracked lips or bad breath.
Epigenetic Mechanisms in Diabetic Vascular Complications and Metabolic Memory: The 2020 Edwin Bierman Award Lecture
Authors: Natarajan Rama
Published: January 2021

Macrovascular complications such as atherosclerosis, myocardial infarction and stroke, and microvascular complications such as nephropathy, retinopathy, and neuropathy are the major causes of increased morbidity and mortality in both type 1 and type 2 diabetes. Increased inflammation, oxidative stress, and fibrosis are common features in most diabetes complications. Although extensive studies have examined the biochemical pathways leading to the expression of inflammatory, profibrotic, and other pathological genes, as well as genetic factors related to diabetes and associated complications, much less is known about the contribution of epigenetic changes that occur without alterations in the DNA sequence. Environmental factors, lifestyles, and improper diet implicated in diabetes can affect epigenetic states. Epigenetic modifications, including DNA methylation and histone modifications, can alter gene transcription in response to environmental stimuli and cooperate with noncoding RNAs. These epigenetic modifications have been observed in various target cells under diabetic conditions. Moreover, epigenetics has also been implicated in the phenomenon of metabolic memory observed in clinic trials and animal studies, in which prior episodes of poor glycemic control can confer continued risk of complications despite subsequent glucose normalization. Epigenome-wide association studies in cohorts with diabetes are uncovering epigenotype variations that provide new insights into diabetic vascular complications. Here, I discuss the role of epigenetics and noncoding RNAs in diabetes complications and metabolic memory, and their translation potential to serve as biomarkers and drug targets to improve clinical management of diabetic vascular complications.
Risk of Blindness Among Patients With Diabetes and Newly Diagnosed Diabetic Retinopathy
Authors: Wykoff Charles C. , Khurana Rahul N. , Nguyen Quan Dong , Kelly Scott P. , Lum Flora , Hall Rebecca , Abbass Ibrahim M. , Abolian Anna M. , Stoilov Ivaylo , To Tu My , Garmo Vincent
Published: January 2021

OBJECTIVE

To evaluate association between initial diabetic retinopathy
(DR) severity/risk of blindness in patients with newly diagnosed DR/good vision
in the U.S.

RESEARCH DESIGN AND
METHODS

Retrospective cohort study of adult patients with good
vision (20/40 or better)/newly diagnosed DR between 1 January 2013 and 31
December 2017 (index date) in the American Academy of Ophthalmology’s IRIS®
Registry. Primary exposure of interest, DR severity at index: mild
nonproliferative DR (NPDR), moderate NPDR, severe NPDR, proliferative DR (PDR).
Main outcome measure: development of sustained blindness (SB), defined as study
eyes with Snellen visual acuity readings of 20/200 or worse at two separate
visits ≥3 months apart that did not improve beyond 20/100.

RESULTS

Among 53,535 eligible eyes (mean follow-up, 662.5 days), 678
(1.3%) eyes developed SB. Eyes with PDR at index represented 10.5% (5,629/53,535)
of the analysis population but made up 26.5% (180/678) of eyes that developed SB.
Kaplan-Meier analysis revealed that eyes with moderate NPDR, severe NPDR, and
PDR at index were 2.6, 3.6, and 4.0 times more likely, respectively, to develop
SB after 2 years of DR diagnosis versus eyes with mild DR at index. In a Cox
proportional hazards model adjusted for index characteristics/development of
ocular conditions during follow-up, eyes with PDR had an increased risk of
developing SB versus eyes with mild NPDR at index (hazard ratio, 2.26; 95% CI,
2.09−2.45).

CONCLUSIONS

In this longitudinal ophthalmologic
registry population involving eyes with good vision, more advanced DR at first
diagnosis was a significant risk factor for developing SB.
Flexural Behavior of Reinforced Concrete Beams with Various Layers of Conventional and Steel Fiber Reinforced Concrete
Authors: MERTOL Halit
Published: January 2021

Flexural behavior of reinforced concrete (RC) beams having various layers of conventional concrete (CC) and steel fiber reinforced concrete (SFRC) were investigated in this study. Two groups of five beams (180×250×3500 mm) were tested under four-point loading to evaluate the flexural behavior. Both of these groups of beams were reinforced with 416 reinforcing bars. The main variable in this research was the concrete type of the layers throughout the height of the specimen. The height of the cross-section of the beams was divided into 5 layers, each having 50 mm thicknesses. In group “F” specimens, SFRC layers were added to the layers of a CC beam, starting from the bottom, as replacements of CC layers, i.e. F15P10 represented that the bottom 150 mm was cast using SFRC whereas the top 100 mm was cast using CC. In group “P” specimens, CC layers were added to the layers of a SFRC beam, starting from the bottom, as replacements of SFRC layers, i.e. P10F15 represented that the bottom 100 mm was cast using CC whereas the top 150 mm was cast using SFRC. Experimental load-deflection curves were evaluated based on ultimate load, service/post-peak stiffnesses, and flexural toughness. It can be concluded that reasonable ductility may be achieved by adding SFRC at the tension side no matter how thick the layer is and where it is located.
Değişen Mikro İklim Koşullarında Geleneksel Konutların Enerji Etkin Davranışları: Geleneksel Mut Evlerinin Karşılaştırmalı Değerlendirmesi
Authors: MANAV Ayşe
Published: January 2021

Dünya’da enerji kaynaklarının hızlı tüketilmesi ve yapıların bu tüketim miktarına yaptığı büyük etki, çalışmaları sürdürülebilir ve enerji etkin yapı tasarımı üzerine yoğunlaştırmıştır. Bilindiği gibi geleneksel yapıların sahip olduğu yapım tekniği, planlama anlayışı ve malzeme kullanımı doğal enerji kaynaklarının daha az tüketilmesine ve enerjinin sürdürülebilirliğine yardımcı olmaktadır. Bununla birlikte farklı bölgelerde veya aynı yerleşim yeri içerisinde doğal çevre etkenleri ile ortaya çıkan mikro iklim geleneksel yapıların enerji etkin davranışlarını çeşitlendirmektedir. Bu çalışmada; sürdürülebilirlik çalışmaları ve enerjinin yapı tasarımı aracılığıyla korunabilmesine dair önemli veriler sunan geleneksel konutların içinde bulundukları farklı mikro iklim bölgelerindeki çözümleri araştırılmıştır. Böylece yeni yapı tasarımlarında enerji tasarrufu için yeni bilgi edinimi amaçlanırken geleneksel bilgi birikimine katkı sağlamaktadır.
TANAMAN INDIKATOR DAN TEKNIK RAPD-PCR UNTUK PENENTUAN BIOTIPE BEMISIA TABACI GENNADIUS (HEMIPTERA: ALEYRODIDAE)
Authors: Hidayat Purnama , Aidawati Noor , Hendrastuti Hidayat Sri , Sartiami Dewi
Published: January 2021

Indicator Plant and PCR-RAPD for Biotype Determination of Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae).B. tabaci has been known world wide as a major pest and virus vector of horticulture. In Indonesia the presence of B.tabaci was reported since 1980 and its role as virus vector in tomato and chilli pepper has becoming more importantrecently. Genetic diversity of B. tabaci has been well recognized, but very little information available for diversity of B.tabaci in Indonesia. This research was conducted in Bogor, West Java from May 2004 to June 2005. The aim of thisresearch was to initiate basic information regarding genetic diversity of B. tabaci in Indonesia, particularly in Java Island.Whiteflies population collected from different crops, i.e. tomato, broccoli, chill pepper, eggplant, cucumber, soybean, andedamame, was evaluated using silverleaf-induction test, and RAPD-PCR. It was evidenced that only B. tabaci populationfrom broccoli was able to induce silverleaf. Two genetic types of B. tabaci, i.e. biotype B and non B, were identified basedon polymorphism character of DNA. Population from broccoli was belong to biotype B, whereas other populations fromtomato, chill pepper, eggplant, cucumber, soybean, and edamame were belong to biotype non B.
UJI APLIKASI EKSTRAK KASAR BUAH PINANG, AKAR TUBA, PATAH TULANG, DAN DAUN NIMBA TERHADAP KEONG EMAS (POMACEA SP.) DI RUMAH KACA
Authors: Wibowo Lestari , Indriyati Indriyati , Solikhin Solikhin
Published: January 2021

Application test of crude extracts of pinang  fruit, tuba root, patah tulang, and neem leaf  on golden apple snail (Pomacea sp.) in green house.  This research was conducted to evaluate the effect of four botanical crude extracts namely Areca catechu, Derris eliptica, Euphorbia tirucalli and Azadirachta indica on golden apple snails under green house condition.  All experiment units were arranged in randomized completely design consisting of some levels of concentration (titer). The result showed that low concentration of the crude extract of A. catechu fruit (0,5 g/l) and crude extracts of D. elliptica root (1 g/l)  were very toxic, indicated by all snails tested were died. Mortality of snails tested caused by crude extract of  A. indica was 100% at the concentration of  4 g/l, meanwhile crude extract of  E. tirucalli was only 84% at a higher concentration of crude extract (8 g/l) occurring 96 hours after application.
PENGARUH INFESTASI VERTICILLIUM LECANII TERHADAP KEPARAHAN PENYAKIT KARAT DAUN KOPI PADA TANAMAN DAN KETERJADIAN KOLONINYA PADA DAUN
Authors: Ginting Cipta
Published: January 2021

Effect of infestation of Verticillium lecanii on the severity of coffee leaf rust on plants and the incidence of its colony on coffee leaves.  V. lecanii often antagonizes H. vastatrix on lesions caused by the pathogen on coffee leaves in the field.  The objectives of this study were to evaluate the efficacy of V. lecanii to control disease severity on coffee plants in a green house and to compare the incidence of V. lecanii colonies on coffee leaves naturally infested by V. lecanii in the field and that in the leaves with additional infestation in the laboratory.  For efficacy test and additional infestation in the laboratory, conidia were harvested from YMPD medium.  Suspension with 107 conidia ml-1 was sprayed into coffee foliage until both surfaces of the leaves were saturated with the suspension.  After the leaves were air dried, they were sprayed with urediospores (104 ml-1).  The results show that disease severity in plants treated with V. lecanii and control plants was not significantly different (P < 0.05), except that obtained at the fourth week when disease severity on the treated plants was significantly lower that that in control plants.  The number of V. lecanii colonies on coffee leaves naturally infested with the biocontrol agent was not increased by additional infestation with V. lecanii conidia in the laboratory.
STRUKTUR KOMUNITAS HYMENOPTERA PARASITOID PADA TUMBUHAN LIAR DI SEKITAR PERTANAMAN PADI DI DAERAH ALIRAN SUNGAI (DAS) CIANJUR, JAWA BARAT
Authors: Yaherwandi Yaherwandi , Manuwoto S. , Buchori D. , Hidayat P. , Prasetyo L. B.
Published: January 2021

Hymenoptera Parasitoid Community Structure on Non-crops Vegetation Around Rice fields in Cianjur Watershed, West Java. Hymenoptera parasitoids have an important role in agroecosystem because of their ability in suppressing pest population. Their presence in the field is seen as the key to agricultural ecosystem. Their presence can be influenced by the availability of non-crop vegetation. Some adult Hymenoptera parasitoids require food in the form of pollen and nectar of wild flowers to ensure effective reproduction and longevity. The objective of this research was to study Hymenoptera parasitoid communities in non-crop vegetation around rice fields at Cianjur Watershed. Samplings were conducted at three different landscape, i.e. Nyalindung, Gasol and Selajambe West Java. Insects were sampled by two trapping techniques (farmcop and sweep net) in two lines of transect for each landscape. A total of 257 species from 25 families of Hymenoptera parasitoids were collected in non-crop vegetation at Cianjur Watershed. Landscape structure, flowering vegetation, and pesticide application affected the species richness, diversity and evenness of Hymenoptera parasitoid in non-crop vegetation.
EFEK PEMAPARAN MUSIK GAMELAN JAWA, MUSIK ROCK DAN SUARA BURUNG MURAI BATU (Copsychus malabaricus) TERHADAP PERTUMBUHAN VEGETATIF TANAMAN BAYAM CABUT (Amaranthus tricolor L)
Authors: Prasetyo Joko , Baharsyah Yudha Firdaus , Hendrawan Yusuf
Published: January 2021

Penelitian ini bertujuan mengetahui pengaruh pemaparan variasi musik terhadap karakteristik pertumbuhan vegetatif dan produktifitas tanaman bayam cabut. Perlakuan yang diterapkan pada penelitian ini adalah jenis musik (gamelan jawa, musik rock dan rekaman suara burung murai batu) dan perlakuan waktu (1 jam, 2 jam dan 3 jam). Level suara yang digunakan berkisar antara 70-75 dB dimulai sejak tanaman telah disemai hingga panen. Parameter yang diamati panjang dan lebar daun tanaman, tinggi tanaman, berat tanaman saat panen dan panjang akar tanaman bayam. Perlakuan terbaik dari penelitian terhadap pertumbuhan tanaman bayam adalah perlakuan musik gamelan jawa dengan waktu pemaparan 3 jam. Perlakuan ini menghasilkan rata-rata tinggi tanaman sebesar 100.79 cm, panjang daun tanaman bayam sebesar 36.27 cm, lebar daun tanaman bayam sebesar 25.30 cm, berat tanaman bayam saat panen sebesar 72.16 gram dan panjang akar tanaman bayam dengan sebesar 36.41 cm. Secara umum paparan musik gamelan dengan waktu pemaparan 3 jam memberikan hasil terbaik terhadap karakteristik morfologi dan produktifitas tanaman baya. Kata Kunci:   bayam, pertumbuhan, produktifitas, suara
THE EFFECT OF CHITOSAN COATING ON COLOR AND BRIX OF RED GRAPES (Vitis vinivera) IN STORAGE
Authors: Wati Andra Tersiana , Maharani Elok Pawening
Published: January 2021

Fruits are a type of perishable agricultural product. One of the post-harvest handling efforts to maintain the freshness of the fruit is chitosan coating. Research has been carried out on various level concentration of chitosan as a coating for grapes (Vitis vinifera) and storage time. This study aims to determine the effect of chitosan concentration on water content,  color and brix of red grapes after storage. Chitosan coating was carried out by immersion methods at various levels of chitosan concentration, namely 0%, 0.5%, 1%, 1.5% and 2% (w/v) with immersion times of 30 seconds and 60 seconds. Based on the statistical test, it is shown that the chitosan concentration of 1.5% (w/v) with immersion time of 60 seconds and storage time on the 5th day is the most optimum for the brightness level of the grapes because the chitosan layer can close the pores of red grapes so that the respiration process aerobic and CO2 which affect color can be inhibited by chitosan solution. Keywords: Chitosan, edible coating, grape, post harvest, shelf life
Meningkatkan Kemampuan Berpikir Kritis Mahasiswa pada Mata Kuliah Analisis Kompleks dengan Discovery Learning Dipadukan dengan Cooperative Learning Tipe Numbered Head Together
Authors: Turmuzi Muhammad , Sarjana Ketut , Junaidi Junaidi
Published: January 2021

The purpose of this study is to improve critical thinking of students' skills in Complex Analysis lectures through discovery learning combined with numbered head together type Cooperative Learning. This research uses a class action research approach. Each cycle consists of several stages, namely: planning, action, observation, and reflection. To obtain research data two types of research instruments were used. The research instrument in question is the observation sheet of the implementation of learning and observation guidelines as well as test questions on critical thinking skills at the end of the cycle. The results of this study indicate that The average score of critical thinking of students skills was 96.40 in the first cycle increased to 126.40 in the second cycle, but the average percentage of critical thinking of students skills increased from cycle I to cycle II, namely 62.25% in cycle I increased to 81.70% in cycle II.
Efektivitas Online Learning Terhadap Keterlibatan Siswa dalam Pembelajaran Tematik (Matematika & IPA) pada Siswa Sekolah Dasar
Authors: Avianty Donna , Anantyarta Primadya
Published: January 2021

This study aims to analyze the effectiveness online learning of student involvement in cognitive, affective and psychomotor aspects on Thematic learning (Mathematics & Science) for elementary school students. Based on the data can be used as a reference for improving the quality of online learning and increasing student involvement in all aspects of learning activities. The method used is descriptive qualitative based on data from questionnaires, questionnaires, video & audio recordings and student work results and then described descriptively. Respondents in this study were 30 students who were selected using simple random sampling technique. While the data analysis uses a qualitative analysis model which consists of three stages: data reduction, data display and conclusion or verification. Based on existing data analysis, the effectiveness of online learning in learning Mathematics and Science at SDN Sitirejo 4 Wagir and SDKr. Shining Star Malang for the cognitive aspect is 86.67% and the affective aspect is 66.67% and the psychomotor aspect is 71.67%.
Analisis Intensitas Belajar Terhadap Ketuntasan Belajar Matematika Peserta Didik Kelas VIII
Authors: Riyanto Dwi , Aziza Mela
Published: January 2021

The aim of the research is to describe how the learning intensity of students to the completeness of mathematics learning outcomes. The research used qualitative research with descriptive methods. The data was taken by Google form, from 22nd to 23rd June 2020. The samples used the purposive sampling technique by selected eight participants students in SMP Negeri 1 Bengkulu city. The technique analysis data are used to reduce, display data, and verification. This research found that there is an influence of the learning intensity toward the mathematical outcomes. The average of learning in the school is 5 hours/week, the average of learning at home is 3 hours/week, the average of learning in a group is 2 hours/week, and the average of learning additional is 1.5 hours/week. Therefore, the average of all of the learning is 1.58 hours/week. The students’ outcomes have fulfilled the criteria minimum of the learning completeness (KKM). It was proved by students’ score in their report that has more than 78.
Factors Associated with the Emotional Intelligence among Youth University Students
Authors: Sabbah Ibtissam M , Sabbah Hala , Khamis Rania , Berbari Reve , Sabbah Sanaa , Badran Sally , Droubi Nabil
Published: January 2021

Nowadays, emotional intelligence (EI) is an emerging topic for psychological, educational, and management researchers and consultants. EI is the ability to manage emotions and interact effectively with others. The purpose of our study is to assess the level of EI of young university students and its associated factors; and   to develop a valid and reliable instrument of EI in Lebanon. During 2018, a cross-sectional study, which enrolled 705 university students chosen randomly in seven faculties was conducted. The survey included questions on socio-demographic characteristics, health behaviors, Wong and Law Emotional Intelligence Scale (WLEIS).  The attitudes related to media and technology usage assessed by using the last four sub-factors of the Media and Technology Usage and Attitudes Scale. The translation and cultural adaptation of the WLEIS followed a standardized protocol. After that, the psychometric properties of the scale (i.e., feasibility, reliability, and validity) were evaluated. A total of 705 undergraduates filled out the questionnaire, of whom 74% were females, aged   from 17 to 35 (mean=20.42±2.41) years.  The rotated principal axis factor analysis produced four-factors, explaining 64.60% of the variance, corresponding to the hypothesized Self-Emotions Appraisal (SEA), Others-Emotions Appraisal (OEA), Use of Emotion (UOE), and Regulation of Emotion (ROE) scales of WLEIS. The internal consistency of the WLEIS scale was high for all subscales (Cronbach’s alpha > 0.70).  The mean OEA score was significantly higher in females as compared to males (p=0.03). The students who study in public university and have physical activities had higher scores of the ROE (p<0.001); whereas the drinkers of alcohol (p=0.04) and smokers had lower scores (p=0.001). The relationship between SEA, OEA, UOE scores and academic performance was significant (p<0.001). The UOE and ROE were negatively and significantly correlated with the Dependence on Technology (r=-0.15; p<0.001). This study supports the feasibility, reliability, and validity of the WLEIS Arabic version as a screening tool of EI among young university students. The individuals working with students in the context of improving academic skills may want to routinely assess EI of their students in order to improve education, student development, personal well-being, and mental ability.
Relato de vivência de avaliação diagnóstica
Authors: Santos Mara Alves dos , Costa Angela dos Santos
Published: January 2021

O presente artigo tem como objetivo relatar uma experiência de como se dá a aprendizagem dos alunos das escolas municipais do campo, na região amazônica, no extremo norte do Brasil, bem como avaliar o desenvolvimento cognitivo e afetivo das crianças da Educação infantil, utilizando como ferramenta principal o lúdico. As escolas visitadas localizam-se em comunidades ribeirinhas, no município de Vitória do Jari, no Sul do Estado do Amapá, Norte do Brasil. Para que a avaliação diagnóstica dos alunos acontecesse foi elaborado um projeto pela equipe pedagógica da Secretaria Municipal de Educação, no qual se propôs que a avaliação fosse realizada por meio de atividades lúdicas, jogos e brincadeiras, cuidadosamente escolhidos, como ferramentas neste processo avaliativo. A avaliação foi realizada em todas as escolas do campo do município. O ambiente natural e o fazer da comunidade local também foram bastante relevantes, durante a vivência do projeto avaliativo.
Analysis of Postgraduate Theses Related to STEM Education in Turkey: A Meta-Synthesis Study
Authors: SARICA Rabia
Published: January 2021

Abstract: Importance and prevalence of STEM, which is a holistic educational approach that includes science, technology, engineering and mathematics, has been increasing in recent years. It is stated that STEM is very important for countries to compete and stand out in the new world order and economy. In this study, postgraduate theses on STEM education in Turkey were investigated by meta-synthesis method. In this context, 58 theses, 9 of which were doctoral and 49 of them were master’s thesis were examined. Topics covered in the theses, research methods used, preferred sample groups, data collection tools and results presented in theses, similar and different aspects were examined in detail. It is understood that various skills, opinions, academic achievement, learning approaches, career, attitudes, and interest/perception are studied in the theses. In the studies, it was determined that mostly mixed, quantitative and qualitative methods were preferred respectively, middle school students and teacher candidates were frequently studied groups, and questionnaire/scale and interview (form) tools were frequently used as data collection tools. The results, similarities and differences of the theses were expressed with key statements and some suggestions were presented.
The Effect of Technological Pedagogical Content Knowledge Game Activities Supported Micro-Teaching Practices on Preservice Mathematics Teachers’ Self-Efficacy Perception
Authors: AÇIKGÜL Kübra
Published: January 2021

Abstract: The purpose of this study is to investigate the effect of Technological Pedagogical Content Knowledge (TPACK) Game activities supported micro-teaching practices on middle school preservice mathematics teachers’ TPACK self-efficacy perception levels. A single group pretest-posttest experimental design was employed. One hundred middle-school preservice mathematics teachers, attending a mathematics instruction course, participated in the study. The Technological Pedagogical Content Knowledge Survey (Șahin, 2011) was used to determine teachers' level of TPACK-measured self-efficacy. One-way Repeated Measures ANOVA was performed to analyze possible differences between teachers' pre and post self-efficacy scores. The result of this analysis demonstrated a statistically meaningful difference for the overall survey as well as for all dimensions of it. These findings suggest that micro-teaching practices do indeed increase preservice teachers' TPACK self-efficacy perception scores.
Student Approaches Resulting from Integration of Cultural Context into Transformation Geometry
Authors: SEVGİ Sedef , ERDURAN Ayten
Published: January 2021

Abstract: The purpose of this study is to investigate how students’ in senior grade of the high school participate in and interpret the transformational geometry activities integrated with cultural context. 5 students in senior grade participated in this study, all of whom live in Aydın district of Turkey. The main design of the study is qualitative. Participant students of the study involved in 9 different rotational geometry and culture integrated activities, 7 of which were performed as student activity sheets, 2 of which were performed as cultural games. 2 of the activities were constructed as a result of pilot study applied to 28 senior students by their math teacher. To collect data about how students participated in and made interpretations about the activities; various data collection tools such as observation, field notes, interview, audio recording and student activity sheets were used. The collected data were analyzed by qualitative descriptive analysis techniques. The results were presented as tables, figures constructed by students and direct quotations. Lastly, at the end of this study students were said to recognize the hidden mathematics in the objects from daily life, games with cultural background and history, and both in Turkish culture and other cultures.
Technology in foreign language teaching: A needs analysis
Authors: ARMUT Mustafa , BAŞAR Tarık , ÖZÜDOĞRU Gül
Published: January 2021

Abstract: The main aim of this study was to explore the technology-based language-learning needs of individuals learning Turkish as a foreign language. In this scope, the study sought to identify the reasons the participants chose to learn Turkish, the language-learning areas that they found the most difficult, the language-learning areas that required most support, their reasons for needing technology, their competencies in using technology, the pathways followed, the technological materials/tools required, and whether there was a need for a specific curriculum of study. The study included 312 students registered in Turkish language teaching centres at five different universities, as well as eight instructors in these language centres. The results revealed that the participants chose to study in Turkey due to the high-quality educational opportunities, their appreciation for the country, and the scholarship opportunities available. The participants indicated that writing was the most difficult skill in learning Turkish. On the other hand, reading was the less difficult skill. The findings revealed that technology was much-needed by both the students and instructors. In particular, technological support was required for listening and speaking skills. The study also showed that the instructors needed a curriculum of study in order to teach Turkish as a foreign language.
Gaining Entrepreneurship Skills with the Activities Designed Related to Primary School Mathematics Curriculum: The Case of Turkey
Authors: AKKAŞ Elif Nur , TARHAN Murat , AYVAZ Ülkü
Published: January 2021

Abstract: The aim of this study is to gain entrepreneurship skills with activities in mathematics education. With this aim, the Primary School Mathematics Curriculum was examined by the researchers. In this process, data were collected using a document review form developed by the researchers within the framework of Tarhan (2019a). According to this framework, entrepreneurship education includes five dimensions, namely business idea, finance, product design and production, promotion and marketing, investment. Obtained data was analyzed by document analysis method. Through the analysis process, the objectives of the program related to the entrepreneurial skills were determined and the activities were designed in line with these objectives. As a result, it was determined that the activities prepared in order to gain entrepreneurship skills in the Primary School Mathematics Curriculum were not compatible with each grade level and each learning domain. This suggests that some of the objectives are not compatible for gaining entrepreneurship skills. Therefore, any activities could be designed related to objectives and learning domains at some of the grade levels. Moreover, it was also found that there were any studies in mathematics education involving the creation and application of mathematical activities by addressing entrepreneurship elements systematically (dimension, subject, skill, value).
NATIVE VASCULAR FLORA OF BEHALI RESERVE FOREST (ASSAM, INDIA) WITH GLOBAL IUCN RED LIST ASSESSMENT OF TWO ENDEMIC SPECIES
Authors: BORAH Dipankar , TANGJANG Sumpam , DAS Abhaya , KAFLEY Parixit , KHAPUGIN Anatoliy
Published: January 2021

The investigations of flora and fauna in Protected Areas provide important contributions to the knowledge on the status of unmanaged natural ecosystems. In 2017–2019, we studied the vascular plant flora of Behali Reserve Forest (Assam, India). The reserve forest covers 140.16 km2 area of semi-evergreen forest. We investigated the taxonomic composition of the flora and diversity of growth forms of species and habitats. In addition, we conducted global IUCN Red List assessment of two endemic species, Aristolochia assamica and Chlorophytum assamicum. We found that the vascular plant flora of Behali Reserve Forest consists of 281 taxa, including 272 species, one subspecies and eight varieties. They belong to 206 genera and 79 families. Among them, Pandanus unguifer was recorded for the first time for the flora of Assam. In growth form spectrum of vascular plants, trees, vines and shrubs predominated, followed by epiphytes, forbs or herbs, geophytes, annuals and parasites. The largest number of vascular plants was found in dense forests, while open habitats were characterized by the smallest species richness. Chlorophytum assamicum is assessed as CR B1ab(iii)+2ab(iii); D, and Aristolochia assamica as EN B2ab(iii). At the same time, there is a threat of reduction or disappearance of their populations. This is especially crucial for C. assamicum, represented by a single world population. Undoubtedly, further investigations of flora could result in an increase in number of the vascular plant flora of Behali Reserve Forest, as well as providing essential insights into population trends of several other species as per IUCN Red List categories and criteria.
UPDATED LIST OF NON-NATIVE ORNAMENTAL PLANTS IN ROMANIA
Authors: URZICEANU Mihaela , CAMEN-COMANESCU Petronela , NAGODA Eugenia , RAICU Maria , SIRBU Ioana-Minodora , ANASTASIU Paulina
Published: January 2021

"The first list of non-native ornamental plants (nNOP) reported as escaped, aturalised or invasive in Romania was published 15 years ago. Since then, new additions to the non-native ornamental flora of Romania ave been reported, while others plants have changed their status. As ornamental horticulture is one of the most important pathways for non-native plant introduction worldwide, we evaluated nNOP at the national level and updated the previous list in order to contribute to the development of tools for preventing, detecting, monitoring and managing the spread of nNOP. The updated list includes 264 taxa. Most of these are casual (199 taxa), 37 taxa are naturalised, and 28 taxa are invasive. In addition, the following characteristics were analysed: family, native range, life form, abundance in the country reported as number of localities and temporal trends. Non-native ornamental flora of Romania is dominated by American and Asian taxa, phanerophytes, hemicryptophytes and therophytes. The most widespread species is Robinia pseudoacacia, used not only for ornamental purposes, but also for its economic value. Many taxa (108 taxa) occur only in two to ten localities. 78 nNOP have been reported in the last 20 years. Six taxa are species of European Union concern (Ailanthus altissima, Asclepias syriaca, Cabomba caroliniana, Humulopsis scandens, Impatiens glandulifera, Myriophyllum aquaticum) and require special measures to control and mitigate their populations."
ANALYSIS OF PHYSIOLOGICAL AND SPECTRAL PARAMETERS ON DIFFERENT ORYZA SATIVA L. VARIETIES UNDER IRON STRESS
Authors: SINGH Banhishikha , CHATTERJEE Rajeshwari , DATTA Niniva , BANERJEE Soma
Published: January 2021

Iron toxicity is an abiotic stress that comes with high concentrations of Fe2+ in the soil solution, and which is a well-recognized problem of rice (Oryza sativa L.) cultivation in the lowlands. Rice varieties differ widely in their ability to tolerate excess iron. The present study was undertaken with four rice varieties, viz. Dhruba, Sampriti, Dhiren and Puspa. The objective was to study the influence of applied high Fe2+ concentrations on the growth, chlorophyll content and antioxidant enzyme activities on these varieties of rice. The spectral reflectivity and absorption of different chemical bonding through Fourier-transform infrared spectroscopy (FTIR) of the four rice varieties were also analyzed. The 7-day-old rice seedlings were treated with ferrous sulfate and subjected to 100–750 ppm for a further 14 days. Iron stress was used to analyze the morphological and biochemical responses. At the same time, the root and shoot parts were exposed to the Fourier transform infrared spectral reflection. The results indicated that the shoot growth and chlorophyll content decreased by 750 ppm in all the selected rice varieties of interest. On the contrary, the catalase activity, protein content, and lipid peroxidation increased in these varieties. However, a high amount of CAT activity in the Sampriti variety, and high amount of SOD activity in the Dhruba variety, led to a higher tolerance of iron stress, in comparison to the other two varieties studied. FTIR revealed steep band stretching of various functional groups of different compounds in both the root and shoot parts of all the varieties. The results revealed that the change of antioxidant expression and FTIR spectra were attributed to the effect of iron toxicity on rice plants.
Assessing Situational Awareness of Universities Concerning Student Dropout: A Web-Based Content Analysis of Romanian Universities’ Agenda
Authors: Adrian Hatos
Published: January 2021

Universities have a strong internet presence where they publish large amounts of documents available for analysis. The relevance of these documents has been rarely put to scrutiny in a policy anlysis context. In our paper we use data from Romanian universities to achieve two objectives: 1) to assess the actual presence of the issue of student dropout at the level of universities' agenda in Romania as it is apparent in their web pages; 2) to evaluate the degree to which the agenda of Romanian universities reflects the actual issue of student retention as reflected in factual data. The results show a significant correlation between the presence of the topic in documents and the actual dropout rate, but there are some limitations, though: the correlation is not linear, universities seem to be inertial in their public aknowledgement of the problem, web-scrapping and web based content-analytic procedures still have numerous reliability issues.
Tiempo de compromiso motor según el soporte musical en danza
Authors: G-Molero H , Romero Ramos O
Published: January 2021

Este trabajo de investigación se ha desarrollado en la clase de técnica de danza clásica de un Conservatorio Superior de Danza, un entorno donde la disciplina, rigurosidad y meticulosidad conviven con la creatividad, la expresión y la sensibilidad. El objetivo principal del estudio es analizar las principales diferencias metodológicas, didácticas y pedagógicas, mediante una metodología de investigación mixta, entre la clase impartida con música grabada (CD) y la clase con el profesor pianista acompañante de danza dado que la labor de éste último sigue haciéndose necesaria a pesar de los medios digitales actuales. Se analizó mediante grabación en vídeo, hoja de observaciones y cuestionarios dos clases en las que la única diferencia fue el soporte musical. Se encontraron diferencias significativas entre ambas sesiones, como por ejemplo una media de 38 segundos para la búsqueda de la música necesaria para cada variación con el CD frente a los seis segundos registrados en la sesión con pianista o un mayor número de desplazamientos hacia la fuente de sonido por parte de la profesora en el caso del CD además de aspectos motivacionales y emocionales diferenciados, resultando más eficaz y productivo el uso de la música en vivo frente a la música grabada