bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Metode Sugesti Imajinasi dan Kreativitas terhadap Keterampilan Menulis Puisi Siswa Kelas IX SMP
Authors: Harianto Budi Teguh , Harjono Hary Soedarto
Published: May 2023

Penelitian ini bertujuan menguji (1) pengaruh metode sugesti imajinasi terhadap keterampilan menulis puisi siswa, (2) pengaruh metode sugesti imajinasi terhadap keterampilan menulis puisi pada siswa yang mempunyai kreativitas tinggi, (3) pengaruh metode sugesti imajinasi terhadap keterampilan menulis puisi pada siswa yang mempunyai kreativitas rendah, (4) pengaruh kreativitas terhadap keterampilan menulis puisi siswa. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan kuantitatif, yang dilakukan dengan metode kuasi eksperimen melibatkan (3) variabel, yaitu metode sugesti imajinasi sebagai variabel bebas dan kreativitas siswa sebagai variabel antara, serta keterampilan menulis puisi sebagai variabel terikat. Berdasarkan hasil penelitian ini simpulannya adalah terdapat pengaruh signifikan metode sugesti imajinasi dan kreativitas siswa terhadap keterampilan siswa menulis puisi. Artinya pembelajaran dengan metode sugesti imajinasi yang digunakan pada kelas eksperimen lebih unggul daripada pembelajaran metode konvensional yang dilakukan pada kelas kontrol. Oleh karena itu, metode sugesti imajinasi lebih baik dari pada metode konvensional dalam meningkatkan keterampilan siswa menulis puisi.

his study aims to examine (1) the influence of imagination suggestion methods on students' poetry writing skills, (2) the influence of imagination suggestion methods on poetry writing skills on students who have high creativity, (3) the influence of imagination suggestion methods on poetry writing skills for students who have low creativity, (4) the influence of creativity on students' poetry writing skills. The approach used in this study is a quantitative approach, which is done by quasi-experimental method involving (3) variables, namely the method of imagination suggestion as an independent variable and student creativity as an intermediate variable, as well as poetry writing skills as dependent variables. Based on the results of this study the conclusion is that there is a significant influence on the method of suggestion of imagination and creativity of students on the skills of students writing poetry. This means that learning using the imaginary suggestion method used in the experimental class is superior to the conventional method of learning conducted in the control class. Therefore, the suggestion method of imagination is better than the conventional method in improving students' skills in writing poetry.
Kemampuan Menulis Paragraf Deskriptif Menggunakan Media Gambar Siswa SMP di Kota Jambi
Authors: Janiasari Janiasari , Harjono Hary Soedarto , Rustam Rustam
Published: May 2023

Abstrak

Penelitian ini bertujuan mendeskripsikan kemampuan menulis paragraf deskriptif menggunakan media gambar siswa kelas VII B SMP Negeri 8 Kota Jambi dari 4 aspek penilaian paragraf deskriptif. Jenis pendekatan yang digunakan dalam penelitian ini adalah deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa kemampuan menulis paragraf deskriptif berdasarkan media rata-rata hasil penilaiannya adalah cukup mampu. Kemampuan menulis paragraf deskriptif berdasarkan media gambar siswa kelas VII B SMP Negeri 8 Kota Jambi ditinjau dari aspek kesesuaian tema dengan gambar dapat digolongkan pada kategori mampu dengan nilai 73,2, dari aspek menciptakan daya khayal dapat digolongkan pada kategori cukup mampu dengan nilai 70, ditinjau dari aspek melibatkan kesan indra dapat digolongkan pada kategori cukup mampu denggan nilai 67,2 dan pada aspek menimbulkan kesan yang hidup dapat dikategorikan cukup mampu dengan nilai 69,2. Secara keseluruhan hasil penilaian diakumulasikan maka hasilnya adalah 69,9 dengan keterangan cukup mampu. Penggunaan media gambar dapat membantu menunjang hasil belajar siswa dalam menulis paragraf deskriptif.

 

Kata Kunci: Kemampuan, menulis, paragraf, deskriptif, gambar
Pembelajaran Membaca Berbasis Survey Question Read Recite and Review untuk Meningkatkan Kemampuan Membaca Pemahaman Siswa SMK
Authors: Yuliatiningsih Titik , Harjono Hary Soedarto , Budiyono Herman
Published: May 2023

Abstrak
Tujuan Penelitian adalah untuk meningkatkan minat baca siswa dan kemampuan membaca pemahaman siswa kelas X Jurusan Teknik Kendaraan Ringan (TKR) SMK Negeri 5 Tanjung Jabung Barat melalui metode pembelajaran membaca berbasis Survey Qestion Read Recite and Review (SQ3R) dalam membaca pemahaman. Uji Validasi data yang digunakan yaitu: (1) triangulasi data, (2) triangulasi metode, (3) triangulasi teori, dan (4) review informan. Proses penelitian ini dilaksanakan dalam 3 siklus. Hasil penelitian menunjukan indikator keberhasilan tindakan yang ditentukan dari tiga siklus penelitian yaitu hasil belajar peserta didik terdapat peningkatan minat baca siswa kelas X Jurusan Teknk Kendaraan Ringan (TKR) SMK Negeri 5 Tanjung Jabung Barat melalui penerapan metode pembelajaran membaca berbasis SQ3R sebagai metode pembelajaran membaca pemahaman, peningkatan nilai rata-rata hasil angket minat membaca siswa siklus I 54,45%, kemudian pada siklus II 55,21%, dan pada siklus III sebanyak 69,75%.Selain minat baca, penerapan metode Pembelajaran berbasis SQ3R dapat meningkatkan kemampuan membaca pemahaman siswa, nilai rata-rata nya juga mengalami peningkatan, yaitu 55,76 pada siklus I, 68,49 pada siklus II dan 72,27 pada siklus III.
 
Kata kunci: Metode SQ3R, Keterampilan Membaca Pemahaman
 
Abstract
This study aims to increase the reading interest and comprehension of student class X of the Department of Light Vehicle Engineering (TKR) of SMK Negeri 5 Tanjung Jabung Barat by the method of reading learning based on Survey Question Read Recite and Review (SQ3R) in reading comprehension. The student uses a Qualitative and Quantitative approach with a classroom action research (CAR). The research prosess was carried out in 3 cycles. The result of this study indicate that the success of these actions is determined by three (3) research cycles including student learning outcomes, wherein the reading interest of student in grade X of the Department of Light Vehicle Engineering (TKR) of SMK Negeri 5 Tanjung Jabung Barat has increased by the application of SQ3R method, the average value of reading interest of students increased in the first cycle 54,45%, in the second cycle 55,21%, and in the third cycle 69,75%, based on the results of the questionnaire. Beside, the application of the SQ3R-based Learning method can also improve student’s comprehension in reading with the average value increased from 55,76 in the first cycle, 68,49 in the second cycle and 72,27 in the third cycle.
Key Words: SQ3R method, comprehension reading skills
MORPHOLOGICAL AND PROPERTIES OF PORTLAND-COMPOSITE CEMENTS WITH CLASS C FLY ASH
Authors: Harmaji Andrie , Fadillah A.
Published: May 2023

Portland-composite cements (PCC) were prepared with partial substitution of 5 to 25% of class C fly ash, obtained from East Java steam power plant. Properties of the composite cements was evaluated, through the setting time (initial and final) and compressive strength (3, 7, and 28 days) compared with control PCC. Setting time is retarded in Portland-composite cements with higher fly ash content. The retardation is highest in PCC with substitution of 25% fly ash. Lower compressive strength is obtained after 3 and 7 days of curing for PCC with 5-25% fly ash substitution in comparison with control cement, since pozzolanic reaction still did not show its effect. After 28 days, compressive strength was higher than that for control cement because pozzolanic reaction show its effect, highlighted by compressive strength increase of PCC substituted by 5% and 10% fly ash, 16.48 MPa and 16.52 MPa, respectively. This attributed to the differences in the pozzolanic activity of the applied fly ash. The compressive strength increase was explained by Scanning Electron Microscope (SEM), which shows that PCC with substitution of 10% fly ash had more Tobermorite presented compared to control cement.
Mulheres em revistas: representações femininas na revista ilustrada Fon-Fon!
Authors: Cruz Jeferson
Published: May 2023

A proposta desse artigo é compreender de qual maneira as mulheres eram representadas na revista ilustrada Fon-Fon!, semanário carioca que circulou entre 1907 e 1957. Buscou-se, inicialmente, compreender a relação entre a mulher e a cidade, para, assim, entender como se deu a criação da “mulher moderna”, tão devassada pela revista em suas matérias e fotografias produzidas pelos seus cronistas e fotógrafos, que dedicavam seus dias a tecer olhares sobre as cidades, que passavam pelo processo de modernização e urbanização, como também sobre os transeuntes, principalmente os do sexo feminino. Buscou-se, ainda, compreender as fotografias de mulheres vinculadas ao folhetim e quais eram seus significados na sociedade urbana da época, dominada pelos homens.
O panorama intelectual da Escola de Chartres
Authors: Rebello Hiago Maimone da Silva
Published: May 2023

O cenário intelectual de Chartres, na primeira metade do século XII, foi um dos mais profícuos e notórios dentro da História da Filosofia Medieval. As condições socioculturais, porém, merecem atenção para melhorar os estudos filosóficos e sociais do período. Deve-se atentar para a organização institucional e para os homens que compunhavam o corpo docente da escola, assim como seus papéis dentro do desenvolvimento da filosofia, durante o período da escolástica. Os relatos de João de Salisbury, as obras dos filósofos chartreanos, bem como a bibliografia especializada, ajudarão expor como era o panorama intelectual da escola em seu auge.
A Novel technique for efficient diagnosis of diseases
Authors: PANDEY MAHIMA SHANKER , PANDEY BIHARI NANDAN , Soam SS , TRIPATHI SURYA PRAKASH , MISHRA ASHISH KUMAR
Published: May 2023

The Fuzzy logic offers an intelligent bound for information illustration
and analysis to handle quality, uncertainty, and ambiguity. Fuzzy logic
is applied to combine human knowledgeable information and discrete
computing. As per our study, explicit mathematical model has not been
developed in the existing research work to explain the behavior of
advanced system. A novel mathematical model for defining the behavior of
such system has been introduced in the paper. Different techniques to
calculate distance between two Intuitionistic Fuzzy Sets (IFSs) have
been analyzed in the proposed model. In the proposed model a novel
distance calculation technique has been introduced. The proposed
technique of distance calculation can be used in medical diagnostic for
decision making. Further, to analyze the outcomes of the proposed model,
different possible outcomes of diagnosis with the existing techniques
have been compared. By comparing the results of proposed technique with
the existing techniques, 65% improvements in the decision of medical
diagnosis can be achieved.
A polarization-insensitive ultra-wideband absorber based on hybrid structure
Authors: Xue Kun , Qin Yifeng , Sun Haoliang , Han Min , Zhu Hongyi , Dong Shaohua
Published: May 2023

As detection technology continually advances, the survivability of
targets on the battlefield is significantly challenged. Therefore,
microwave absorbers with stealth capabilities have become a focal point
of research in modern military science. To address the issues of narrow
bandwidth and complex structures in existing absorbers, we propose a
model for an ultra-wideband absorber based on a hybrid structure. In
this study, we design, manufacture, and characterize a
polarization-insensitive ultra-wideband absorber (PIUWA), which
demonstrates impressive absorptivity of over 90% across a range of
4-24.53GHz (a fractional bandwidth of 144%). This is achieved by
inducing multiple resonance peaks within the hybrid structure. Moreover,
the subwavelength periodicity of the PIUWA theoretically contributes to
its angular stability under full-wave polarizations. We observed that
absorption performance remains stable under incident conditions within
45 degrees. Furthermore, the operational mechanism of the PIUWA is
elucidated through an equivalent circuit model, with design validity
confirmed via experimental measurements. This study paves the way for
the design and fabrication of ultra-wideband microwave absorbers that
offer high absorptivity, robust angular stability, and simpler assembly
processes, thereby broadening the potential for application in other
absorber types.
Monitoring COVID-19 vaccine effectiveness against COVID-19 hospitalisation and death using electronic health registries in ≥65-years-old population in six European countries, October 2021 to November 2022
Authors: Kislaya Irina , Sentís Alexis , Starrfelt Jostein , Nunes Baltasar , Martínez-Baz Iván , Nielsen Katrine Finderup , AlKerwi Ala'a , Braeye Toon , Fontán-Vela Mario , Bacci Sabrina , Meijerink Hinta , Castilla Jesus , Emborg Hanne-Dorthe , Hansen Christian Holm , Schmitz Susanne , Valenciano Marta , Evercooren Izaak Van , Nardone Anthony , Nicolay Nathalie , Monge Susana
Published: May 2023

Background: Within the ECDC-VEBIS project, we prospectively monitored
vaccine effectiveness (VE) against COVID-19 hospitalisation and
COVID-19-related death, using electronic health registries (EHR),
between October 2021 and November 2022, in community-dwelling residents
aged 65–79 and ≥80-years in six European countries. Methods: EHR
linkage was used to construct population cohorts in Belgium, Denmark,
Luxembourg, Navarre (Spain), Norway and Portugal. Using a common
protocol, for each outcome (hospitalisation and death), VE was estimated
monthly over eight-week follow-up periods, allowing one month-lag for
data consolidation. Cox proportional-hazards regression models were used
to estimate adjusted hazard ratios (aHR) and VE=(1 – aHR) x100.
Site-specific estimates were pooled using random-effects meta-analysis.
Results: For ≥80-years, VE against COVID-19 hospitalisation decreased
from 66.9% (95%CI: 60.1; 72.6) to 36.1% (95%CI: -27.3; 67.9) for the
primary vaccination and from 95.6% (95%CI: 88.0; 98.4) to 67.7%
(95%CI: 45.9; 80.8) for the first booster. Similar trends were observed
for 65-79-years. The second booster VE against hospitalisation ranged
between 82.0% (95%CI: 75.9; 87.0) and 83.9% (95%CI: 77.7; 88.4) for
the ≥80-years and between 39.3% (95%CI: -3.9; 64.5) and 80.6%
(95%CI: 67.2; 88.5) for 65-79-years. The first booster VE against
COVID-19-related death declined over time for both age groups, while the
second booster VE against death remained above 80% for the ≥80-years.
Conclusions: Successive vaccine boosters played a relevant role in
maintaining protection against COVID-19 hospitalisation and death, in
the context of decreasing VE over time. Multi-country data from EHR
facilitate robust near-real-time monitoring of VE in the EU/EEA and
supports public health decision-making.
Dopaminergic neuronal death via necroptosis in Parkinson’s disease: a review of the literature
Authors: Regoni Maria , Valtorta Flavia , Sassone Jenny
Published: May 2023

Parkinson’s disease is a neurodegenerative disorder characterized by the
progressive dysfunction and loss of dopamine (DA) neurons of the
substantia nigra pars compacta (SNc). Several pathways of programmed
cell death are likely to play a role in DA neuron death, such as
apoptosis, necrosis, pyroptosis, ferroptosis as well as cell death
associated with proteasomal and mitochondrial dysfunction. A better
understanding of the molecular mechanisms underlying DA neuron death
could inform the design of drugs that promote neuron survival.
Necroptosis is a recently characterized regulated cell death mechanism
that exhibits morphological features common to both apoptosis and
necrosis. It requires activation of an intracellular pathway involving
receptor-interacting protein 1 (RIP1) and its kinase (RIP1 kinase,
RIPK1), receptor-interacting protein 3 (RIP3) and its kinase (RIP3
kinase, RIPK3), and mixed lineage kinase domain like pseudokinase
(MLKL). The potential involvement of this programmed cell death pathway
in the pathogenesis of PD has been studied by analyzing the biomarkers
for necroptosis, such as the levels and oligomerization of pRIPK3 and
pMLKL, in several PD preclinical models and in PD human tissue. While
there is evidence that other types of cell death also have a role in DA
neuron death, most studies support the hypothesis that this cell death
mechanism is activated in PD tissues. Thus drugs that prevent or reduce
necroptosis may provide neuroprotection for PD. In this review, we
summarize the findings from these studies. We also discuss how
manipulating necroptosis might open a novel therapeutic approach to
reduce neuronal degeneration in PD.
Faropenem, a stable and orally bioavailable β-lactam, to counteract resistant pathogens and infectious diseases. A narrative review
Authors: Bhalla Amit
Published: May 2023

Antimicrobial resistance is a huge challenge for the effective
prevention and treatment of infectious diseases worldwide.
Community-onset infections with Extended-spectrum β-lactamases (ESBL)
producing bacteria are a challenge. In various studies, ESBL-producing
isolates were consistently susceptible only to carbapenems. When
treatment with other antibiotics fails, carbapenems are used as the
last-line antibiotics for treating severe and/or resistant bacterial
infections. In this narrative review, we aim to present the pharmacology
of Faropenem, which is an orally administered penem antibiotic with a
broad-spectrum activity against many Gram-positive and Gram-negative
aerobes, and anaerobes. Faropenem is effective in the treatment of
uncomplicated cystitis and is a potential solution to combat the
emergence of resistance among respiratory tract pathogens. It is an
alternative to fluoroquinolones or macrolides/ketolides when there is a
concern with resistant pathogens. Keywords: β-lactamases, Carbapenems,
Faropenem.
DreamWalk: Dynamic Remapping and Multiperspectivity for Large-Scale Redirected Walking
Authors: Xiong Yuan , Chen Tong , Li Tianjing , Zhou Zhong
Published: May 2023

Redirected walking (RDW) provides an immersive user experience in
virtual reality applications. In RDW, the size of the physical play area
is limited, which makes it challenging to design the virtual path in a
larger virtual space. Mainstream RDW approaches rigidly manipulate gains
to guide the user to follow predetermined rules. However, these methods
may cause simulator sickness, boundary collision, and reset. Static
mapping approaches warp the virtual path through expensive vertex
replacement in the stage of model pre-processing. They are restricted to
narrow spaces with non-looping pathways, partition walls, and planar
surfaces. These methods fail to provide a smooth walking experience for
large-scale open scenes. To tackle these problems, we propose a novel
approach that dynamically redirects the user to walk in a non-linear
virtual space. More specifically, we propose a Bezier-curve-based
mapping algorithm to warp the virtual space dynamically and apply
multiperspective fusion for visualization augmentation. We conduct
comparable experiments to show its superiority over state-of-the-art
large-scale redirected walking approaches on our self-collected
photogrammetry dataset.
The Effects of Positioning After Extubation of Preterm Infants on the Respiratory Functions
Authors: Kahriman İlknur , Özcelep Gökçe Ateş
Published: May 2023

Objective: The study aims to determine the effects of supine
and prone positioning after extubation of preterm infants in the
neonatal intensive care unit (NICU) on the respiratory function.
Design: The study was conducted 42 premature infants born
before 37+6 weeks of gestation. Two groups premature infants, each
consisting of 21 babies, were selected by randomization method and
totally 42 babies were included in the study. Newborn Assessment Form
was used to collect the data. Results: In the study, the median
SpO2 of infants in the supine position were lower than the median SpO2
of preterm infants placed in the prone position in the measurements
according to time. There was a significant difference between the median
SpO2 and repeated measurements within the position groups (supine group
<0.001; prone group <0.001). There was also
significant difference between the distribution of respiratory rhythms
in terms of time in the preterm infant group in the prone position
(p=0.035). In the 120th minute, 95.2% of the respiratory rhythms were
rhythmical. In the study, it can be understood that there is no
statistically significant difference with the respiratory rate at
different times in preterm infants in supine and prone positions.
Conclusion: The result of the study showed that the supine and
prone position after extubation had no effect on the median values of
SpO2, respiratory rate, respiratory distress, and respiratory rhythm in
preterm infants.
Variability of genetic correlations of milk yield and fertility traits in Simmental cows in different regions of Serbia
Authors: Pantelic Vlada , Niksic Dragan , Lazarevic Marina , Micic Nenad , Marinkovic Milos , Maksimovic Nevena , Samolovac Ljiljana
Published: May 2023

The Simmental breed of cattle is mostly reared in the central part of the
Republic of Serbia, where it makes up about 80% of all breeds. In areas of
more intensive cattle production, populations of cattle with pronounced milk
yield are reared. In more extensive, as well as hilly and mountainous areas,
somewhat less productive animals are raised. The main goal of this study was
to examine the variability of genetic correlations of milk and fertility
traits on the farms of individual agricultural producers using modern
methods, depending on the breeding area, i.e. the region in which they are
bred and reared. This study included 2589 controlled Simmental heifers, with
lactations concluded during one year. All first calving heifers were housed
and reared on agricultural family farms in the area of Central Serbia. The
paper examines genetic correlations between the following traits of milk
yield and fertility: duration of lactation, milk yield in standard
lactation, milk fat content in standard lactation, milk fat yield in
standard lactation, yield of 4% FCM in standard lactation, age at first
calving, duration of service period. The results of the study of genetic
correlations were obtained using mixed LSMLMW models (Harvey 1990). The
examined genetic correlations of milk yield and fertility traits in
Simmental cows showed pronounced variability depending on the breeding area
where the cows are reared.
Water footprint of milk production systems in semi-arid plains of North Africa
Authors: Yerou Houari , Belguerbi Benamar , Homrani Abdelkader , Benabdeli Kheloufi
Published: May 2023

Water resources are becoming scarce and must be preserved. The significant
use of water is linked to agriculture in general and to livestock in
particular. Very little research in semi-arid regions has been devoted to
assessing the contribution of ruminants to water scarcity. This contribution
explores the relationships between dairy farming and the various water
resources available in an ecosystem with climatic constraints. To meet
future food demand while sustainably managing the available land and water
resources, dairy farm systems in semi-arid regions must adapt in response to
climate and socio-economic change. In this study, we focus on the south
Mediterranean region to analyze the key factors influencing water
productivity in dairy farming, especially in context characterized by water
scarcity. In order to characterize the relationship between dairy cattle
breeding and water resources, a monitoring of 40 dairy cattle stables has
been carried out in a semi-arid region. The technical and economic
parameters of each farm were evaluated: the use of water according to their
origins to the production of fodder by source, the contribution of virtual
water off the farm, the total fodder biomass, feeding system practiced on
the farms and the performances achieved. Analysis of the data indicates that
productivity of fodder in dry matter differ between the two systems with
values of the order of 12520 to 17188 kg/ha (p<0.05) respectively for type
extensive and intensive systems. The milk yield per cow did not exceed an
average value of 3680 kg (rang 3240 to 4120 kg. The mean gross margin per
kilogram of milk was low, not exceeding 0.13?. A significant effect (p<0.05)
of the value of the water footprint between the two dairy farm systems with
an average of around 2.05m3/kg of milk (range 1.96 to 2.15 respectively for
intensive and extensive farms). The contribution of rainfall is estimated at
57% and the rest is represented by the participation of irrigation and
virtual water with 18% and 25% respectively. Necessary actions must be taken
along the milk production process in order to improve the productivity of
water for forage production and the milk which depends in large part on
annual rainfall and to a lesser extent on groundwater.
Effect of dietary inclusion of Silybum marianum oil extraction byproduct on growth performance, immune response and cecal microbial population of broiler chicken
Authors: Shahsavan Mehdi , Salari Somayyeh , Ghorbani Mohammadreza
Published: May 2023

The aim of this study was to evaluate the effects of Silybum marianum oil
extraction byproduct (SMOEB) supplementation on performance and some
physiological parameters of broiler chickens. Treatments were consisted of
different levels of SMOEB (0%, 3%, 6%, 9% and 12% of the diet). From day
8-21, dietary inclusion of 3%, 9% and 12% of SMOEB into the diet increased
(P<0.05) feed intake and body weight gain of broilers. From day 22-42,
increasing SMOEB level increased feed intake linearly. Increasing SMOEB
level increased FI linearly and quadratically from day 8-42. On day 16, a
higher value was recorded for wingweb thickness in birds that were received
9% of SMOEB in the diet only at 24h following the PHA-P injection (P<0.05).
The higher value was observed for CBH response at 12 and 24h post-injection
on day 21and day 35 in broilers were fed by 9% of SMOEB supplemented into
the diet for toe web thickness. It can be concluded that SMOEB could be
added to the diet of broilers without any adverse effect on performance
parameters and also, it can improve immune parameters of birds at levels up
to 12%.
(ω,c)-almost periodic type functions and applications
Authors: Khalladi Mohammed , Kostic Marko , Rahmani Abdelkader , Velinov Daniel
Published: May 2023

In this paper, we introduce several various classes of (?, c)-almost periodic
type functions and their Stepanov generalizations. We also consider the
corresponding classes of (?, c)-almost periodic type functions depending on
two variables and related composition principles. We provide several
illustrative examples and applications to the abstract Volterra
integro-differential equations in Banach spaces.
Reconstruction of Szász-Mirakyan operators preserving exponential type functions
Authors: Goyal Meenu
Published: May 2023

In this paper, we construct a modification of Sz?sz-Mirakyan operators with
a new technique that preserved the exponential functions i.e. exp(?t) and
exp(2?t), for a fixed real parameter ? > 0. We study the asymptotic
behaviour and weighted approximation of these operators. Comparisons about
one approximate better between the recent operators and the classical
Sz?sz-Mirakyan operators have also been presented. In the end, we compare
the convergence of these operators and modified Baskakov operators to
certain functions by illustrative graphics using the Mathematica algorithms.
The square-Newton iteration for linear complementarity problem
Authors: Feng Mei , Wang Xiang , Wang Teng
Published: May 2023

For getting the numerical solution of the linear complementary problem (LCP),
there are many methods such as the modulus-based matrix splitting iteration
and the modulus-based nonsmooth Newton?s method. We proposed the
Square-Newton method to solve the LCP. This method could solve LCP
efficiently. We gave the theoretical analysis and numerical experiments in
the paper.
Strong and weak convergence theorems for solutions of equations of Hammerstein-type
Authors: Ofoedu Eric , Osigwe Chimezie , Ibeh Kingsley , Madu Lovelyn
Published: May 2023

In this paper, it is our aim in this paper to introduce a new iterative
algorithmfor approximation of a solution of an equation of Hammerstein-type.
The proposed scheme does not involve computation of inverse of operators
under study; it does not involve passing through computation of a certain
set that must contain a solution of the equation of Hammerstein-type before
convergence takes place. The proposed scheme requires only one parameter
satisfying verifiable mild conditions. Moreover, the mappings involved are
neither defined on compact subset of the space under study, nor assumed to
be angle bounded. Our theorems complement several results that have been
obtained in this direction.
Blow up and growth of solutions to a viscoelastic parabolic type Kirchhoff equation
Authors: Pişkin Erhan , Ekinci Fatma
Published: May 2023

In this article, we study a system of viscoelastic parabolic type Kirchhoff equation with multiple nonlinearities. We obtain a finite time blow up of solutions and exponential growth of solution with negative initial energy.
Dynamical analysis of an almost periodic multispecies mutualism system with impulsive effects and time delays
Authors: Chen Xuesong , Luo Demou
Published: May 2023

This article is concerned with a generalized almost periodic multispecies
mutualism model with impulsive effects and time delays. By utilizing
comparison theorem and constructing a feasible Lyapunov function. We
establish some criteria to guarantee that the permanence, existence,
uniqueness and global stability of almost periodic positive solution. A
feasible numerical simulation will be provided to explain the suitability of
our main criteria.
On the domain of q-Euler matrix in c and c0 with its point spectra
Authors: Yaying Taja , Hazarika Bipan , Mei Liquan
Published: May 2023

We introduce new Banach spaces e?,? 0 (q) and e?,? c (q) defined as the
domain of generalized q-Euler matrix E?,?(q) in the spaces c0 and c,
respectively. Some topological properties and inclusion relations related to
the newly defined spaces are exhibited. We determine the bases and obtain
K?the duals of the spaces e?,? 0 (q) and e?,? c (q). We characterize
certain matrix mappings from the spaces e?,? 0 (q) and e?,? c (q) to the
space S ? {??, c, c0, ?1, bs, cs, cs0}. We compute necessary and sufficient
conditions for a matrix operator to be compact from the space e?,? 0 (q) to
the space S ? {??, c, c0, ?1, bs, cs, cs0} using Hausdorff measure of
non-compactness. Finally, we give point spectrum of the matrix E?,?(q) in
the space c.
Comparative study of chemical composition and the antimutagenic activity of propolis extracts obtained by means of various solvents
Authors: Rasgele Pinar , Sipahi Nisa , Yilmaz Gulden
Published: May 2023

The present study is aimed to evaluate the chemical characterization and antimutagenic potential of propolis extracted in three different solvents (ethanol, polyethylene glycol and water). The chemical properties of different extracts of propolis were identified using HPLC-DAD and LC?MS/MS and polyethylene glycol extract of propolis were found to be richer than the ethanolic and water extracts of propolis considering chemical composition. In addition, the antimutagenic activities of propolis extracts were determined using Ames assay. The concentrations of 3, 1.5 and 0.75 mg plate-1 of ethanolic and polyethylene glycol extracts, as well as 0.3, 0.15 ? 0.075 mg plate-1 of water extract of propolis were used as active materials. Propolis extracted in three different solvents indicated strong antimutagenic activity against both 4-nitro- -o-phenylendiamine and sodium azide mutagens in the Salmonella typhimurium TA98 and 100 strains at all concentrations. Ethanolic extract of propolis had the highest inhibition rates for both bacterial strains and these rates were 98.94 and 97.37 % for TA98 and TA100, respectively. The inhibition rates of polyethylene glycol extract of propolis ranged from 68.27 to 98.94%. Moreover, it was determined that water extract of propolis had the lowest inhibition rates, which were 56.86 and 55.35% for TA98 and TA100, respectively. The toxicological safety of natural products such as propolis has gained great importance due to extensive usage.
The effect of insert surface roughness in part production with inserted powder injection molding method
Authors: Samet Kamran , Subaşı Mehmet , Karataş Çetin
Published: May 2023

The Powder Injection Molding (PIM) method is widely used in the production
of parts with complex geometries and small volumes. To solve the volume
limitation in PIM, the Inserted Powder Injection Molding (IPIM) method was
developed. In this study, the effect of insert surface roughness on shear
strength was investigated using the IPIM method in the production of WC-9%Co
parts. Firstly, inserts with five different surface roughness (Ra, ?m), 1.5
- 2.1 - 3.3 - 4 - 4.6, were prepared from 4340 steel for the research. WC
feedstock was injected onto the prepared inserts. Following the injection
process, the samples were subjected to debinding and sintering processes.
Compression tests were performed on sintered specimens, and the effect of
surface roughness on diffusion bonding strength was investigated. As a
result of the experiments, it was determined that the shear strength
increases with the increase of the insert surface roughness. The maximum
shear strength (118.4 MPa) was obtained in samples with an insert surface
roughness of 4.6 ?m.
The problem of underdetermination
Authors: Zoric Aleksandra
Published: May 2023

We are examining the problem of underdetermination of theory by data starting from the thesis of empirical equivalence as the strongest form in which underdetermination is formulated. We will consider the consequences of this thesis on the basis of different attempts to resolve it, whereby untenability of realistic and some antirealist solutions of a problem is envisaged. The acceptance of pragmatic (non-realist) stance marks a departure from the final solution on behalf of a practical decision making in circumstances of de facto underdetermination.
Third man argument
Authors: Zarevic Andrej
Published: May 2023

The aim of this paper is to discuss one possible interpretation of Plato's Third Man argument. Plato's theory has been outlined by focusing on those premises usually taken as important for the formulation of the argument. The argument is then brought into connection with the theory of types although it is not assumed that self-predictional sentences in Plato's theory have the same role as in Russell's paradox. Employing the notion of "well-defined class", it is pointed out in what respect the argumentation is invalid, i.e. why Plato's theory of ideas needs not to lead to an infinite regress or a paradox of self-predication.
Incidence and distribution of beet necrotic yellow vein virus in Vojvodina
Authors: Jasnic Stevan , Bagi Ferenc , Stojsin Vera , Jelincic Kornelija
Published: May 2023

From 1997 to 2004, 67213 ha were surveyed in Vojvodina in order to determine the incidence and distribution of beet necrotic yellow vein virus (BNYVV) the causer of Rhizomania on sugar beet in the fields in Vojvodina. The number of inspected hectares was different and ranged from 4.427 ha in 2004 to 19.254 ha in 2002. The survey showed that BNYVV is not equally widespread in all sugar beet growing areas of Vojvodina. The regions of Srem and Banat had higher incidence of the virus, while in region of Backa the incidence of virus was lower than in other parts of Vojvodina. The BNYVV was found, on average, on 46,2% in Banat, on 40,6% in Srem and on 32,9% in Backa of sugar beet acreages involved, during the period of eight years (1997-2004). These results show that BNYVV is widespread in Vojvodina, since the virus was found on 36,7% (24.674 ha) of acreages from 67.213 ha of total sugar beet acreages inspected on incidence of BNYVV in the period from 1997 to 2004.
Occurence, spread and possibilities of invasive weeds control in sugar beet
Authors: Konstantinovic Branko , Meseldzija Maja
Published: May 2023

Floristically rich and diverse weed comunity of sugar beet is in our country represented by 150 weed species. They are not all equaly significant in weediness of this crop. Only a limited number of them participate in weed comunity composition. These are: Abuthilon theophrasti Medic., Ambrosia artemisiifolia L., Amaranthus retroflexus L., Chenopodium album L., Cirsium arvense (L) Scop., Convolvulus arvensis L., Cynodon dactylon (L) Pers. Digitaria sanguinalis (L) Scop., Hibiscus trionum L., Rubus caesius L. Echinochloa crus-gall L., Polygonum aviculare L., P. lapathifolium L., P. persicaria L., Setaria glauca (L) P. B., S. viridis (L) P. B., Solanum nigrum L. and Sorghum halepense (L) Pers. In shooting period up to 4-8 weeks upon emergence, sugar beet is under the haviest harmfull inluence of weeds, especially invasive ones such as: Abuthilon theophrasti Medic. Ambrosia artemisiifolia L., Cirsium arvense (L) Scop., Iva xanthifolia L. Sorghum halepense (L) Pers. and Xanthium strumarium L. Sugar beet growing requires intensive cultural practices, i.e. basic and additional tillage and cultivation. Due to the widening of weed problems, frequent herbicide use in several applications is needed in the longer time period.
Distribution and harmfulness of field dodder (Cuscuta campestris Yuncker) at sugar beet fields in Slovakia
Authors: Tóth Peter , Tancik Ján , Cagan L'udovit
Published: May 2023

During 2002-2004, field surveys of field dodder (Cuscuta campestris Yunck e r) in croplands were done in southwestern Slovakia. From among 150 localities surveyed, 80 were found infested by the field dodder. Within crop plants, C. campestris infested sugar beet (Beta vulgaris), alfalfa (Medicago sativa) tobacco (Nicotiana tabacum), potato (Solanum tuberosum), lentil (Lens esculenta), parsley (Pastinaca sativa) and onion (Allium cepa). Besides the crops, 18 weed species were also recorded. The species from the genus Polygonum (Polygonaceae) were the most important and acted as a significant reservoir of field dodder in cropland. C. campestris was not found in cold climatic regions with altitude higher than 240 m. The impact of field dodder infestation on sugar beet yield was studied during the year of 2004 in two localities (Salov and Zitavce) in southwestern Slovakia. The presence of field dodder markedly reduced both, quantity and quality of sugar beet yield. Weight of heavily infested beets was reduced from 21.6 to 37.4% and sugar content from 12.0 to 15.2%. Such decline of both parameters was also recorded when field dodder was removed together with leaves of sugar beet during growing season at the end of July. The aim of the infested leaves removal was to decrease mass of field dodder seeds. Although the leaf area of sugar beet regenerates, the decrease of quality and quantity was observed. The decline was the same at both localities, no matter whether the fields were irrigated (Salov) or not (Zitavce).
Distribution, host plants and natural enemies of sugar beet root aphid (Pemphigus fuscicornis) In Slovakia
Authors: Tóth Peter , Tancik Ján , Tóthová Monika , Pacuta Vladimir
Published: May 2023

During 2003-2004, field surveys were realized to observe the distribution of sugar beet aphid, Pemphigus fuscicornis (K o c h) (Sternorrhyncha Pemphigidae) in southwestern Slovakia. The research was carried out at 60 different localities with altitudes 112-220 m a. s. l. Sugar beet root aphid was recorded at 30 localities. The aphid was recorded in Slovakia for the first time, but its occurrence was predicted and symptoms and harmfulness overlooked by now. The presence of P. fuscicornis was investigated on roots of various plants from Chenopodiaceae. The most important host plants were various species of lambsquarters (above all Chenopodium album). Furthermore sugar beet (Beta vulgaris provar. altissima), red beet (B. vulgaris provar. conditiva) and oraches (Atriplex spp) act as host plants. Infestation of sugar beet by P. fuscicornis never exceeded 5% at single locality in Slovakia. Dry and warm weather create presumptions for strong harmfulness. In Slovakia, Chenopodium album is a very important indicator of sugar beet aphid presence allowing evaluation of control requirements. During the study, the larvae of Thaumatomyia glabra (Diptera: Chloropidae) were detected as important natural enemies of sugar beet aphid. The species occurred at each location evaluated.
An assessment of the impact of adhesive coverage and wire type on fixed retainer failures and force propagation along two types of orthodontic retainer wires: an in vitro study
Authors: Tee Selena H. M. , Shahid Saroash , Al-Moghrabi Dalya , Fleming Padhraig S.
Published: May 2023

Objectives

To evaluate the force required to promote the failure of fixed orthodontic retainers with different adhesive (composite) coverage and to assess the presence and extent of force propagation with two different orthodontic retainer wires.

Materials and Methods

Ortho-FlexTech and Ortho-Care Perform (0.0175 inches), each of 15-cm length, were bonded on acrylic blocks with different adhesive surface diameters (2 mm, 3 mm, 4 mm, and 5 mm). The samples (n = 160) were subjected to a tensile pull-out test, and debonding force was recorded. Fixed retainers using two different wires and 4-mm adhesive diameter were bonded on acrylic bases resembling a maxillary dental arch (n = 72). The retainers were loaded occluso-apically until the first sign of failure while being video recorded. Individual frames of the recordings were extracted and compared. A force propagation scoring index was developed to quantify the extent of force transmission under load.

Results

A 4-mm adhesive surface diameter required the highest debonding force for both retainer wires with significant differences compared with 2 mm (P < .001; 95% confidence interval [CI]: 8.69, 21.69) and 3 mm (P = .026; 95% CI: 0.60, 13.59). Force propagation scores were significantly higher for Ortho-Care Perform.

Conclusions

Based on this laboratory-based assessment, consideration should be given to the fabrication of maxillary fixed retainers using a minimum of 4-mm diameter composite coverage on each tooth. Force appeared to propagate more readily with Ortho-Care Perform than with a flexible chain alternative. This may risk stress accumulation at the terminal ends with potential for associated unwanted tooth movement in the presence of intact fixed retainers.
Longitudinal patterns in water quality and fish assemblage structure in a low-gradient, temperate Neotropical stream disrupted by a point-source urban effluent
Authors: Masson Ignacio , Bertora Andrea , Rosso Juan José , González Castelain José , Dubny Sabrina , Othax Natalia , Peluso Fabio
Published: May 2023

Low-gradient, prairie streams from the Pampa Plain, Argentina, constitute the southernmost geographic occurrence for many Neotropical fish species. Fish assemblages in Neotropical streams have shown drastic responses to the modification of habitat and water quality. Under this scenario it could be hypothesized that the water quality will be influenced by the anthropic activities and the natural conditions and that the ichthyofauna will be responsive. Therefore, understanding the functioning of these ecosystems is crucial for their conservation in a world with ever-growing anthropic pressures. In order to explore patterns in fish assemblage and water quality under urbanization pressure, the Del Azul stream (Buenos Aires, Argentina) was sampled. The objectives of the study were: (1) to explore trends in water quality and fish assemblage structure along the stream, (2) to study the relationship between fish assemblage structure and water quality, and (3) to pinpoint individual species with potential for biomonitoring. Seven sites were selected along the stream, and they were sampled twice during each of five consecutive summer periods. Through the use of multivariate analysis, we revealed trends in water quality and fish assemblage structure where water quality characteristics were more distinctive of a basin sector than the fish species abundances. Irrespective of that, the Indicator Species Analysis evidenced some key species indicative of given groups of sites sharing similar water quality characteristics. Namely, Cnesterodon decemmaculatus was associated to polluted reaches downstream from the point-source urban effluent, and Cheirodon interruptus, Pimelodella laticeps and Oligosarcus jenynsii to lower salinities and less polluted reaches upstream from the point-source urban effluent. All these species could be useful for biomonitoring temperate Neotropical streams.
REINFORCING STUDENTS’ SHORT FUNCTIONAL TEXT WRITING SKILL THROUGH MIND MAPPING TECHNIQUE
Authors: Amalia Syahara Dina , Santos Regina F. , Dewi Erlinda Yunita , Ramadan Lintang Gita
Published: May 2023

This research is generally aimed at problem-solving and improvement attempts for students’ writing skill, especially in short functional text writing. In particular, it is also expected to contribute to the betterment of the teaching and learning processes of the Short Functional Text Writing subject in the Department of English Education (DEE) in the Faculty of Teacher Training and Education of Universitas Muhammadiyah Surakarta and as an alternative technique in teaching the subject for the lecturers. Class Action Research (CAR) is applied to identify whether using mind mapping can help reinforce students’ skill in writing short functional texts. The subject of this research is the first semester students who are being taught Short Functional Text Writing subject. The researchers gathered the data from two cycles in a qualitative manner. The data were obtained from the observation, the results of the tests and the questionnaire. The results of this research are that the students’ motivation increased since they could harness their creativity in making a variety of mind maps from different media and the students’ comprehension about short functional texts improved since mind mapping could help them understand the materials
ADAPTASI PROGRAM MICROTEACHING BAGI CALON GURU BAHASA INDONESIA PADA MASA PANDEMI COVID-19
Authors: Sufanti Main , Pratiwi Dini Restiyanti , Sholeh Khabib
Published: May 2023

This study aimed to describe the implementation of a microteaching program to pre-service Bahasa Indonesia teachers during the Covid-19 pandemic, the advantages of the program, and its weaknesses. Data related to the changes in the program when facing a pandemic, advantages of program changes, and weaknesses. Data obtained from the Microteaching course in the Indonesian Language and Literature Department in The Universitas Muhammadiyah Surakarta. Microteaching in the semester of 2019/2020 amounted to 209 students. Data were from observation techniques, questionnaires, and document analysis. The sample was selected randomly. Triangulation techniques and methods validated the data, the interactive term used for data analysis. The results of this study are as follows. (1) To deal with the Covid-19, there are no changes in the core stages of Microteaching, but it needs some adaptations to the implementation, such as learning tools, teaching practices, observation activities, and assessments. (2) The advantages of adapting this program are students have flexible time and place of practice, improved information technology capabilities, and the student experience varies as they can write more stories. (3) The weaknesses of the adaptation of this program are the workload of lecturers increases, student learning burden increases, limited interaction, and network problems